From a056ab8c7a00a0ffc52e9573bf01257004c2d08c Mon Sep 17 00:00:00 2001 From: Carlos Chinea Date: Fri, 16 Apr 2010 19:01:02 +0300 Subject: HSI: hsi: Introducing HSI framework Adds HSI framework in to the linux kernel. High Speed Synchronous Serial Interface (HSI) is a serial interface mainly used for connecting application engines (APE) with cellular modem engines (CMT) in cellular handsets. HSI provides multiplexing for up to 16 logical channels, low-latency and full duplex communication. Signed-off-by: Carlos Chinea Acked-by: Linus Walleij diff --git a/drivers/Kconfig b/drivers/Kconfig index b5e6f24..5289508 100644 --- a/drivers/Kconfig +++ b/drivers/Kconfig @@ -52,6 +52,8 @@ source "drivers/i2c/Kconfig" source "drivers/spi/Kconfig" +source "drivers/hsi/Kconfig" + source "drivers/pps/Kconfig" source "drivers/ptp/Kconfig" diff --git a/drivers/Makefile b/drivers/Makefile index 1b31421..91077ac 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -53,6 +53,7 @@ obj-$(CONFIG_ATA) += ata/ obj-$(CONFIG_TARGET_CORE) += target/ obj-$(CONFIG_MTD) += mtd/ obj-$(CONFIG_SPI) += spi/ +obj-y += hsi/ obj-y += net/ obj-$(CONFIG_ATM) += atm/ obj-$(CONFIG_FUSION) += message/ diff --git a/drivers/hsi/Kconfig b/drivers/hsi/Kconfig new file mode 100644 index 0000000..937062e --- /dev/null +++ b/drivers/hsi/Kconfig @@ -0,0 +1,17 @@ +# +# HSI driver configuration +# +menuconfig HSI + tristate "HSI support" + ---help--- + The "High speed synchronous Serial Interface" is + synchronous serial interface used mainly to connect + application engines and cellular modems. + +if HSI + +config HSI_BOARDINFO + bool + default y + +endif # HSI diff --git a/drivers/hsi/Makefile b/drivers/hsi/Makefile new file mode 100644 index 0000000..ed94a3a --- /dev/null +++ b/drivers/hsi/Makefile @@ -0,0 +1,5 @@ +# +# Makefile for HSI +# +obj-$(CONFIG_HSI_BOARDINFO) += hsi_boardinfo.o +obj-$(CONFIG_HSI) += hsi.o diff --git a/drivers/hsi/hsi.c b/drivers/hsi/hsi.c new file mode 100644 index 0000000..4e2d79b --- /dev/null +++ b/drivers/hsi/hsi.c @@ -0,0 +1,494 @@ +/* + * HSI core. + * + * Copyright (C) 2010 Nokia Corporation. All rights reserved. + * + * Contact: Carlos Chinea + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include "hsi_core.h" + +static struct device_type hsi_ctrl = { + .name = "hsi_controller", +}; + +static struct device_type hsi_cl = { + .name = "hsi_client", +}; + +static struct device_type hsi_port = { + .name = "hsi_port", +}; + +static ssize_t modalias_show(struct device *dev, + struct device_attribute *a __maybe_unused, char *buf) +{ + return sprintf(buf, "hsi:%s\n", dev_name(dev)); +} + +static struct device_attribute hsi_bus_dev_attrs[] = { + __ATTR_RO(modalias), + __ATTR_NULL, +}; + +static int hsi_bus_uevent(struct device *dev, struct kobj_uevent_env *env) +{ + if (dev->type == &hsi_cl) + add_uevent_var(env, "MODALIAS=hsi:%s", dev_name(dev)); + + return 0; +} + +static int hsi_bus_match(struct device *dev, struct device_driver *driver) +{ + return strcmp(dev_name(dev), driver->name) == 0; +} + +static struct bus_type hsi_bus_type = { + .name = "hsi", + .dev_attrs = hsi_bus_dev_attrs, + .match = hsi_bus_match, + .uevent = hsi_bus_uevent, +}; + +static void hsi_client_release(struct device *dev) +{ + kfree(to_hsi_client(dev)); +} + +static void hsi_new_client(struct hsi_port *port, struct hsi_board_info *info) +{ + struct hsi_client *cl; + unsigned long flags; + + cl = kzalloc(sizeof(*cl), GFP_KERNEL); + if (!cl) + return; + cl->device.type = &hsi_cl; + cl->tx_cfg = info->tx_cfg; + cl->rx_cfg = info->rx_cfg; + cl->device.bus = &hsi_bus_type; + cl->device.parent = &port->device; + cl->device.release = hsi_client_release; + dev_set_name(&cl->device, info->name); + cl->device.platform_data = info->platform_data; + spin_lock_irqsave(&port->clock, flags); + list_add_tail(&cl->link, &port->clients); + spin_unlock_irqrestore(&port->clock, flags); + if (info->archdata) + cl->device.archdata = *info->archdata; + if (device_register(&cl->device) < 0) { + pr_err("hsi: failed to register client: %s\n", info->name); + kfree(cl); + } +} + +static void hsi_scan_board_info(struct hsi_controller *hsi) +{ + struct hsi_cl_info *cl_info; + struct hsi_port *p; + + list_for_each_entry(cl_info, &hsi_board_list, list) + if (cl_info->info.hsi_id == hsi->id) { + p = hsi_find_port_num(hsi, cl_info->info.port); + if (!p) + continue; + hsi_new_client(p, &cl_info->info); + } +} + +static int hsi_remove_client(struct device *dev, void *data __maybe_unused) +{ + struct hsi_client *cl = to_hsi_client(dev); + struct hsi_port *port = to_hsi_port(dev->parent); + unsigned long flags; + + spin_lock_irqsave(&port->clock, flags); + list_del(&cl->link); + spin_unlock_irqrestore(&port->clock, flags); + device_unregister(dev); + + return 0; +} + +static int hsi_remove_port(struct device *dev, void *data __maybe_unused) +{ + device_for_each_child(dev, NULL, hsi_remove_client); + device_unregister(dev); + + return 0; +} + +static void hsi_controller_release(struct device *dev __maybe_unused) +{ +} + +static void hsi_port_release(struct device *dev __maybe_unused) +{ +} + +/** + * hsi_unregister_controller - Unregister an HSI controller + * @hsi: The HSI controller to register + */ +void hsi_unregister_controller(struct hsi_controller *hsi) +{ + device_for_each_child(&hsi->device, NULL, hsi_remove_port); + device_unregister(&hsi->device); +} +EXPORT_SYMBOL_GPL(hsi_unregister_controller); + +/** + * hsi_register_controller - Register an HSI controller and its ports + * @hsi: The HSI controller to register + * + * Returns -errno on failure, 0 on success. + */ +int hsi_register_controller(struct hsi_controller *hsi) +{ + unsigned int i; + int err; + + hsi->device.type = &hsi_ctrl; + hsi->device.bus = &hsi_bus_type; + hsi->device.release = hsi_controller_release; + err = device_register(&hsi->device); + if (err < 0) + return err; + for (i = 0; i < hsi->num_ports; i++) { + hsi->port[i].device.parent = &hsi->device; + hsi->port[i].device.bus = &hsi_bus_type; + hsi->port[i].device.release = hsi_port_release; + hsi->port[i].device.type = &hsi_port; + INIT_LIST_HEAD(&hsi->port[i].clients); + spin_lock_init(&hsi->port[i].clock); + err = device_register(&hsi->port[i].device); + if (err < 0) + goto out; + } + /* Populate HSI bus with HSI clients */ + hsi_scan_board_info(hsi); + + return 0; +out: + hsi_unregister_controller(hsi); + + return err; +} +EXPORT_SYMBOL_GPL(hsi_register_controller); + +/** + * hsi_register_client_driver - Register an HSI client to the HSI bus + * @drv: HSI client driver to register + * + * Returns -errno on failure, 0 on success. + */ +int hsi_register_client_driver(struct hsi_client_driver *drv) +{ + drv->driver.bus = &hsi_bus_type; + + return driver_register(&drv->driver); +} +EXPORT_SYMBOL_GPL(hsi_register_client_driver); + +static inline int hsi_dummy_msg(struct hsi_msg *msg __maybe_unused) +{ + return 0; +} + +static inline int hsi_dummy_cl(struct hsi_client *cl __maybe_unused) +{ + return 0; +} + +/** + * hsi_alloc_controller - Allocate an HSI controller and its ports + * @n_ports: Number of ports on the HSI controller + * @flags: Kernel allocation flags + * + * Return NULL on failure or a pointer to an hsi_controller on success. + */ +struct hsi_controller *hsi_alloc_controller(unsigned int n_ports, gfp_t flags) +{ + struct hsi_controller *hsi; + struct hsi_port *port; + unsigned int i; + + if (!n_ports) + return NULL; + + port = kzalloc(sizeof(*port)*n_ports, flags); + if (!port) + return NULL; + hsi = kzalloc(sizeof(*hsi), flags); + if (!hsi) + goto out; + for (i = 0; i < n_ports; i++) { + dev_set_name(&port[i].device, "port%d", i); + port[i].num = i; + port[i].async = hsi_dummy_msg; + port[i].setup = hsi_dummy_cl; + port[i].flush = hsi_dummy_cl; + port[i].start_tx = hsi_dummy_cl; + port[i].stop_tx = hsi_dummy_cl; + port[i].release = hsi_dummy_cl; + mutex_init(&port[i].lock); + } + hsi->num_ports = n_ports; + hsi->port = port; + + return hsi; +out: + kfree(port); + + return NULL; +} +EXPORT_SYMBOL_GPL(hsi_alloc_controller); + +/** + * hsi_free_controller - Free an HSI controller + * @hsi: Pointer to HSI controller + */ +void hsi_free_controller(struct hsi_controller *hsi) +{ + if (!hsi) + return; + + kfree(hsi->port); + kfree(hsi); +} +EXPORT_SYMBOL_GPL(hsi_free_controller); + +/** + * hsi_free_msg - Free an HSI message + * @msg: Pointer to the HSI message + * + * Client is responsible to free the buffers pointed by the scatterlists. + */ +void hsi_free_msg(struct hsi_msg *msg) +{ + if (!msg) + return; + sg_free_table(&msg->sgt); + kfree(msg); +} +EXPORT_SYMBOL_GPL(hsi_free_msg); + +/** + * hsi_alloc_msg - Allocate an HSI message + * @nents: Number of memory entries + * @flags: Kernel allocation flags + * + * nents can be 0. This mainly makes sense for read transfer. + * In that case, HSI drivers will call the complete callback when + * there is data to be read without consuming it. + * + * Return NULL on failure or a pointer to an hsi_msg on success. + */ +struct hsi_msg *hsi_alloc_msg(unsigned int nents, gfp_t flags) +{ + struct hsi_msg *msg; + int err; + + msg = kzalloc(sizeof(*msg), flags); + if (!msg) + return NULL; + + if (!nents) + return msg; + + err = sg_alloc_table(&msg->sgt, nents, flags); + if (unlikely(err)) { + kfree(msg); + msg = NULL; + } + + return msg; +} +EXPORT_SYMBOL_GPL(hsi_alloc_msg); + +/** + * hsi_async - Submit an HSI transfer to the controller + * @cl: HSI client sending the transfer + * @msg: The HSI transfer passed to controller + * + * The HSI message must have the channel, ttype, complete and destructor + * fields set beforehand. If nents > 0 then the client has to initialize + * also the scatterlists to point to the buffers to write to or read from. + * + * HSI controllers relay on pre-allocated buffers from their clients and they + * do not allocate buffers on their own. + * + * Once the HSI message transfer finishes, the HSI controller calls the + * complete callback with the status and actual_len fields of the HSI message + * updated. The complete callback can be called before returning from + * hsi_async. + * + * Returns -errno on failure or 0 on success + */ +int hsi_async(struct hsi_client *cl, struct hsi_msg *msg) +{ + struct hsi_port *port = hsi_get_port(cl); + + if (!hsi_port_claimed(cl)) + return -EACCES; + + WARN_ON_ONCE(!msg->destructor || !msg->complete); + msg->cl = cl; + + return port->async(msg); +} +EXPORT_SYMBOL_GPL(hsi_async); + +/** + * hsi_claim_port - Claim the HSI client's port + * @cl: HSI client that wants to claim its port + * @share: Flag to indicate if the client wants to share the port or not. + * + * Returns -errno on failure, 0 on success. + */ +int hsi_claim_port(struct hsi_client *cl, unsigned int share) +{ + struct hsi_port *port = hsi_get_port(cl); + int err = 0; + + mutex_lock(&port->lock); + if ((port->claimed) && (!port->shared || !share)) { + err = -EBUSY; + goto out; + } + if (!try_module_get(to_hsi_controller(port->device.parent)->owner)) { + err = -ENODEV; + goto out; + } + port->claimed++; + port->shared = !!share; + cl->pclaimed = 1; +out: + mutex_unlock(&port->lock); + + return err; +} +EXPORT_SYMBOL_GPL(hsi_claim_port); + +/** + * hsi_release_port - Release the HSI client's port + * @cl: HSI client which previously claimed its port + */ +void hsi_release_port(struct hsi_client *cl) +{ + struct hsi_port *port = hsi_get_port(cl); + + mutex_lock(&port->lock); + /* Allow HW driver to do some cleanup */ + port->release(cl); + if (cl->pclaimed) + port->claimed--; + BUG_ON(port->claimed < 0); + cl->pclaimed = 0; + if (!port->claimed) + port->shared = 0; + module_put(to_hsi_controller(port->device.parent)->owner); + mutex_unlock(&port->lock); +} +EXPORT_SYMBOL_GPL(hsi_release_port); + +static int hsi_start_rx(struct hsi_client *cl, void *data __maybe_unused) +{ + if (cl->hsi_start_rx) + (*cl->hsi_start_rx)(cl); + + return 0; +} + +static int hsi_stop_rx(struct hsi_client *cl, void *data __maybe_unused) +{ + if (cl->hsi_stop_rx) + (*cl->hsi_stop_rx)(cl); + + return 0; +} + +static int hsi_port_for_each_client(struct hsi_port *port, void *data, + int (*fn)(struct hsi_client *cl, void *data)) +{ + struct hsi_client *cl; + + spin_lock(&port->clock); + list_for_each_entry(cl, &port->clients, link) { + spin_unlock(&port->clock); + (*fn)(cl, data); + spin_lock(&port->clock); + } + spin_unlock(&port->clock); + + return 0; +} + +/** + * hsi_event -Notifies clients about port events + * @port: Port where the event occurred + * @event: The event type + * + * Clients should not be concerned about wake line behavior. However, due + * to a race condition in HSI HW protocol, clients need to be notified + * about wake line changes, so they can implement a workaround for it. + * + * Events: + * HSI_EVENT_START_RX - Incoming wake line high + * HSI_EVENT_STOP_RX - Incoming wake line down + */ +void hsi_event(struct hsi_port *port, unsigned int event) +{ + int (*fn)(struct hsi_client *cl, void *data); + + switch (event) { + case HSI_EVENT_START_RX: + fn = hsi_start_rx; + break; + case HSI_EVENT_STOP_RX: + fn = hsi_stop_rx; + break; + default: + return; + } + hsi_port_for_each_client(port, NULL, fn); +} +EXPORT_SYMBOL_GPL(hsi_event); + +static int __init hsi_init(void) +{ + return bus_register(&hsi_bus_type); +} +postcore_initcall(hsi_init); + +static void __exit hsi_exit(void) +{ + bus_unregister(&hsi_bus_type); +} +module_exit(hsi_exit); + +MODULE_AUTHOR("Carlos Chinea "); +MODULE_DESCRIPTION("High-speed Synchronous Serial Interface (HSI) framework"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/hsi/hsi_boardinfo.c b/drivers/hsi/hsi_boardinfo.c new file mode 100644 index 0000000..e56bc6d --- /dev/null +++ b/drivers/hsi/hsi_boardinfo.c @@ -0,0 +1,62 @@ +/* + * HSI clients registration interface + * + * Copyright (C) 2010 Nokia Corporation. All rights reserved. + * + * Contact: Carlos Chinea + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ +#include +#include +#include +#include "hsi_core.h" + +/* + * hsi_board_list is only used internally by the HSI framework. + * No one else is allowed to make use of it. + */ +LIST_HEAD(hsi_board_list); +EXPORT_SYMBOL_GPL(hsi_board_list); + +/** + * hsi_register_board_info - Register HSI clients information + * @info: Array of HSI clients on the board + * @len: Length of the array + * + * HSI clients are statically declared and registered on board files. + * + * HSI clients will be automatically registered to the HSI bus once the + * controller and the port where the clients wishes to attach are registered + * to it. + * + * Return -errno on failure, 0 on success. + */ +int __init hsi_register_board_info(struct hsi_board_info const *info, + unsigned int len) +{ + struct hsi_cl_info *cl_info; + + cl_info = kzalloc(sizeof(*cl_info) * len, GFP_KERNEL); + if (!cl_info) + return -ENOMEM; + + for (; len; len--, info++, cl_info++) { + cl_info->info = *info; + list_add_tail(&cl_info->list, &hsi_board_list); + } + + return 0; +} diff --git a/drivers/hsi/hsi_core.h b/drivers/hsi/hsi_core.h new file mode 100644 index 0000000..ab5c2fb --- /dev/null +++ b/drivers/hsi/hsi_core.h @@ -0,0 +1,35 @@ +/* + * HSI framework internal interfaces, + * + * Copyright (C) 2010 Nokia Corporation. All rights reserved. + * + * Contact: Carlos Chinea + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +#ifndef __LINUX_HSI_CORE_H__ +#define __LINUX_HSI_CORE_H__ + +#include + +struct hsi_cl_info { + struct list_head list; + struct hsi_board_info info; +}; + +extern struct list_head hsi_board_list; + +#endif /* __LINUX_HSI_CORE_H__ */ diff --git a/include/linux/hsi/hsi.h b/include/linux/hsi/hsi.h new file mode 100644 index 0000000..4b17806 --- /dev/null +++ b/include/linux/hsi/hsi.h @@ -0,0 +1,410 @@ +/* + * HSI core header file. + * + * Copyright (C) 2010 Nokia Corporation. All rights reserved. + * + * Contact: Carlos Chinea + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +#ifndef __LINUX_HSI_H__ +#define __LINUX_HSI_H__ + +#include +#include +#include +#include +#include +#include + +/* HSI message ttype */ +#define HSI_MSG_READ 0 +#define HSI_MSG_WRITE 1 + +/* HSI configuration values */ +enum { + HSI_MODE_STREAM = 1, + HSI_MODE_FRAME, +}; + +enum { + HSI_FLOW_SYNC, /* Synchronized flow */ + HSI_FLOW_PIPE, /* Pipelined flow */ +}; + +enum { + HSI_ARB_RR, /* Round-robin arbitration */ + HSI_ARB_PRIO, /* Channel priority arbitration */ +}; + +#define HSI_MAX_CHANNELS 16 + +/* HSI message status codes */ +enum { + HSI_STATUS_COMPLETED, /* Message transfer is completed */ + HSI_STATUS_PENDING, /* Message pending to be read/write (POLL) */ + HSI_STATUS_PROCEEDING, /* Message transfer is ongoing */ + HSI_STATUS_QUEUED, /* Message waiting to be served */ + HSI_STATUS_ERROR, /* Error when message transfer was ongoing */ +}; + +/* HSI port event codes */ +enum { + HSI_EVENT_START_RX, + HSI_EVENT_STOP_RX, +}; + +/** + * struct hsi_config - Configuration for RX/TX HSI modules + * @mode: Bit transmission mode (STREAM or FRAME) + * @channels: Number of channels to use [1..16] + * @speed: Max bit transmission speed (Kbit/s) + * @flow: RX flow type (SYNCHRONIZED or PIPELINE) + * @arb_mode: Arbitration mode for TX frame (Round robin, priority) + */ +struct hsi_config { + unsigned int mode; + unsigned int channels; + unsigned int speed; + union { + unsigned int flow; /* RX only */ + unsigned int arb_mode; /* TX only */ + }; +}; + +/** + * struct hsi_board_info - HSI client board info + * @name: Name for the HSI device + * @hsi_id: HSI controller id where the client sits + * @port: Port number in the controller where the client sits + * @tx_cfg: HSI TX configuration + * @rx_cfg: HSI RX configuration + * @platform_data: Platform related data + * @archdata: Architecture-dependent device data + */ +struct hsi_board_info { + const char *name; + unsigned int hsi_id; + unsigned int port; + struct hsi_config tx_cfg; + struct hsi_config rx_cfg; + void *platform_data; + struct dev_archdata *archdata; +}; + +#ifdef CONFIG_HSI_BOARDINFO +extern int hsi_register_board_info(struct hsi_board_info const *info, + unsigned int len); +#else +static inline int hsi_register_board_info(struct hsi_board_info const *info, + unsigned int len) +{ + return 0; +} +#endif /* CONFIG_HSI_BOARDINFO */ + +/** + * struct hsi_client - HSI client attached to an HSI port + * @device: Driver model representation of the device + * @tx_cfg: HSI TX configuration + * @rx_cfg: HSI RX configuration + * @hsi_start_rx: Called after incoming wake line goes high + * @hsi_stop_rx: Called after incoming wake line goes low + */ +struct hsi_client { + struct device device; + struct hsi_config tx_cfg; + struct hsi_config rx_cfg; + void (*hsi_start_rx)(struct hsi_client *cl); + void (*hsi_stop_rx)(struct hsi_client *cl); + /* private: */ + unsigned int pclaimed:1; + struct list_head link; +}; + +#define to_hsi_client(dev) container_of(dev, struct hsi_client, device) + +static inline void hsi_client_set_drvdata(struct hsi_client *cl, void *data) +{ + dev_set_drvdata(&cl->device, data); +} + +static inline void *hsi_client_drvdata(struct hsi_client *cl) +{ + return dev_get_drvdata(&cl->device); +} + +/** + * struct hsi_client_driver - Driver associated to an HSI client + * @driver: Driver model representation of the driver + */ +struct hsi_client_driver { + struct device_driver driver; +}; + +#define to_hsi_client_driver(drv) container_of(drv, struct hsi_client_driver,\ + driver) + +int hsi_register_client_driver(struct hsi_client_driver *drv); + +static inline void hsi_unregister_client_driver(struct hsi_client_driver *drv) +{ + driver_unregister(&drv->driver); +} + +/** + * struct hsi_msg - HSI message descriptor + * @link: Free to use by the current descriptor owner + * @cl: HSI device client that issues the transfer + * @sgt: Head of the scatterlist array + * @context: Client context data associated to the transfer + * @complete: Transfer completion callback + * @destructor: Destructor to free resources when flushing + * @status: Status of the transfer when completed + * @actual_len: Actual length of data transfered on completion + * @channel: Channel were to TX/RX the message + * @ttype: Transfer type (TX if set, RX otherwise) + * @break_frame: if true HSI will send/receive a break frame. Data buffers are + * ignored in the request. + */ +struct hsi_msg { + struct list_head link; + struct hsi_client *cl; + struct sg_table sgt; + void *context; + + void (*complete)(struct hsi_msg *msg); + void (*destructor)(struct hsi_msg *msg); + + int status; + unsigned int actual_len; + unsigned int channel; + unsigned int ttype:1; + unsigned int break_frame:1; +}; + +struct hsi_msg *hsi_alloc_msg(unsigned int n_frag, gfp_t flags); +void hsi_free_msg(struct hsi_msg *msg); + +/** + * struct hsi_port - HSI port device + * @device: Driver model representation of the device + * @tx_cfg: Current TX path configuration + * @rx_cfg: Current RX path configuration + * @num: Port number + * @shared: Set when port can be shared by different clients + * @claimed: Reference count of clients which claimed the port + * @lock: Serialize port claim + * @async: Asynchronous transfer callback + * @setup: Callback to set the HSI client configuration + * @flush: Callback to clean the HW state and destroy all pending transfers + * @start_tx: Callback to inform that a client wants to TX data + * @stop_tx: Callback to inform that a client no longer wishes to TX data + * @release: Callback to inform that a client no longer uses the port + * @clients: List of hsi_clients using the port. + * @clock: Lock to serialize access to the clients list. + */ +struct hsi_port { + struct device device; + struct hsi_config tx_cfg; + struct hsi_config rx_cfg; + unsigned int num; + unsigned int shared:1; + int claimed; + struct mutex lock; + int (*async)(struct hsi_msg *msg); + int (*setup)(struct hsi_client *cl); + int (*flush)(struct hsi_client *cl); + int (*start_tx)(struct hsi_client *cl); + int (*stop_tx)(struct hsi_client *cl); + int (*release)(struct hsi_client *cl); + struct list_head clients; + spinlock_t clock; +}; + +#define to_hsi_port(dev) container_of(dev, struct hsi_port, device) +#define hsi_get_port(cl) to_hsi_port((cl)->device.parent) + +void hsi_event(struct hsi_port *port, unsigned int event); +int hsi_claim_port(struct hsi_client *cl, unsigned int share); +void hsi_release_port(struct hsi_client *cl); + +static inline int hsi_port_claimed(struct hsi_client *cl) +{ + return cl->pclaimed; +} + +static inline void hsi_port_set_drvdata(struct hsi_port *port, void *data) +{ + dev_set_drvdata(&port->device, data); +} + +static inline void *hsi_port_drvdata(struct hsi_port *port) +{ + return dev_get_drvdata(&port->device); +} + +/** + * struct hsi_controller - HSI controller device + * @device: Driver model representation of the device + * @owner: Pointer to the module owning the controller + * @id: HSI controller ID + * @num_ports: Number of ports in the HSI controller + * @port: Array of HSI ports + */ +struct hsi_controller { + struct device device; + struct module *owner; + unsigned int id; + unsigned int num_ports; + struct hsi_port *port; +}; + +#define to_hsi_controller(dev) container_of(dev, struct hsi_controller, device) + +struct hsi_controller *hsi_alloc_controller(unsigned int n_ports, gfp_t flags); +void hsi_free_controller(struct hsi_controller *hsi); +int hsi_register_controller(struct hsi_controller *hsi); +void hsi_unregister_controller(struct hsi_controller *hsi); + +static inline void hsi_controller_set_drvdata(struct hsi_controller *hsi, + void *data) +{ + dev_set_drvdata(&hsi->device, data); +} + +static inline void *hsi_controller_drvdata(struct hsi_controller *hsi) +{ + return dev_get_drvdata(&hsi->device); +} + +static inline struct hsi_port *hsi_find_port_num(struct hsi_controller *hsi, + unsigned int num) +{ + return (num < hsi->num_ports) ? &hsi->port[num] : NULL; +} + +/* + * API for HSI clients + */ +int hsi_async(struct hsi_client *cl, struct hsi_msg *msg); + +/** + * hsi_id - Get HSI controller ID associated to a client + * @cl: Pointer to a HSI client + * + * Return the controller id where the client is attached to + */ +static inline unsigned int hsi_id(struct hsi_client *cl) +{ + return to_hsi_controller(cl->device.parent->parent)->id; +} + +/** + * hsi_port_id - Gets the port number a client is attached to + * @cl: Pointer to HSI client + * + * Return the port number associated to the client + */ +static inline unsigned int hsi_port_id(struct hsi_client *cl) +{ + return to_hsi_port(cl->device.parent)->num; +} + +/** + * hsi_setup - Configure the client's port + * @cl: Pointer to the HSI client + * + * When sharing ports, clients should either relay on a single + * client setup or have the same setup for all of them. + * + * Return -errno on failure, 0 on success + */ +static inline int hsi_setup(struct hsi_client *cl) +{ + if (!hsi_port_claimed(cl)) + return -EACCES; + return hsi_get_port(cl)->setup(cl); +} + +/** + * hsi_flush - Flush all pending transactions on the client's port + * @cl: Pointer to the HSI client + * + * This function will destroy all pending hsi_msg in the port and reset + * the HW port so it is ready to receive and transmit from a clean state. + * + * Return -errno on failure, 0 on success + */ +static inline int hsi_flush(struct hsi_client *cl) +{ + if (!hsi_port_claimed(cl)) + return -EACCES; + return hsi_get_port(cl)->flush(cl); +} + +/** + * hsi_async_read - Submit a read transfer + * @cl: Pointer to the HSI client + * @msg: HSI message descriptor of the transfer + * + * Return -errno on failure, 0 on success + */ +static inline int hsi_async_read(struct hsi_client *cl, struct hsi_msg *msg) +{ + msg->ttype = HSI_MSG_READ; + return hsi_async(cl, msg); +} + +/** + * hsi_async_write - Submit a write transfer + * @cl: Pointer to the HSI client + * @msg: HSI message descriptor of the transfer + * + * Return -errno on failure, 0 on success + */ +static inline int hsi_async_write(struct hsi_client *cl, struct hsi_msg *msg) +{ + msg->ttype = HSI_MSG_WRITE; + return hsi_async(cl, msg); +} + +/** + * hsi_start_tx - Signal the port that the client wants to start a TX + * @cl: Pointer to the HSI client + * + * Return -errno on failure, 0 on success + */ +static inline int hsi_start_tx(struct hsi_client *cl) +{ + if (!hsi_port_claimed(cl)) + return -EACCES; + return hsi_get_port(cl)->start_tx(cl); +} + +/** + * hsi_stop_tx - Signal the port that the client no longer wants to transmit + * @cl: Pointer to the HSI client + * + * Return -errno on failure, 0 on success + */ +static inline int hsi_stop_tx(struct hsi_client *cl) +{ + if (!hsi_port_claimed(cl)) + return -EACCES; + return hsi_get_port(cl)->stop_tx(cl); +} +#endif /* __LINUX_HSI_H__ */ -- cgit v0.10.2 From 4e69fc22753fcce1d9275b5517ef3646ffeffcf4 Mon Sep 17 00:00:00 2001 From: Andras Domokos Date: Thu, 30 Sep 2010 17:18:53 +0300 Subject: HSI: hsi_char: Add HSI char device driver Add HSI char device driver to the kernel. Signed-off-by: Andras Domokos Signed-off-by: Carlos Chinea diff --git a/drivers/hsi/clients/hsi_char.c b/drivers/hsi/clients/hsi_char.c new file mode 100644 index 0000000..88a050d --- /dev/null +++ b/drivers/hsi/clients/hsi_char.c @@ -0,0 +1,802 @@ +/* + * HSI character device driver, implements the character device + * interface. + * + * Copyright (C) 2010 Nokia Corporation. All rights reserved. + * + * Contact: Andras Domokos + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define HSC_DEVS 16 /* Num of channels */ +#define HSC_MSGS 4 + +#define HSC_RXBREAK 0 + +#define HSC_ID_BITS 6 +#define HSC_PORT_ID_BITS 4 +#define HSC_ID_MASK 3 +#define HSC_PORT_ID_MASK 3 +#define HSC_CH_MASK 0xf + +/* + * We support up to 4 controllers that can have up to 4 + * ports, which should currently be more than enough. + */ +#define HSC_BASEMINOR(id, port_id) \ + ((((id) & HSC_ID_MASK) << HSC_ID_BITS) | \ + (((port_id) & HSC_PORT_ID_MASK) << HSC_PORT_ID_BITS)) + +enum { + HSC_CH_OPEN, + HSC_CH_READ, + HSC_CH_WRITE, + HSC_CH_WLINE, +}; + +enum { + HSC_RX, + HSC_TX, +}; + +struct hsc_client_data; +/** + * struct hsc_channel - hsi_char internal channel data + * @ch: channel number + * @flags: Keeps state of the channel (open/close, reading, writing) + * @free_msgs_list: List of free HSI messages/requests + * @rx_msgs_queue: List of pending RX requests + * @tx_msgs_queue: List of pending TX requests + * @lock: Serialize access to the lists + * @cl: reference to the associated hsi_client + * @cl_data: reference to the client data that this channels belongs to + * @rx_wait: RX requests wait queue + * @tx_wait: TX requests wait queue + */ +struct hsc_channel { + unsigned int ch; + unsigned long flags; + struct list_head free_msgs_list; + struct list_head rx_msgs_queue; + struct list_head tx_msgs_queue; + spinlock_t lock; + struct hsi_client *cl; + struct hsc_client_data *cl_data; + wait_queue_head_t rx_wait; + wait_queue_head_t tx_wait; +}; + +/** + * struct hsc_client_data - hsi_char internal client data + * @cdev: Characther device associated to the hsi_client + * @lock: Lock to serialize open/close access + * @flags: Keeps track of port state (rx hwbreak armed) + * @usecnt: Use count for claiming the HSI port (mutex protected) + * @cl: Referece to the HSI client + * @channels: Array of channels accessible by the client + */ +struct hsc_client_data { + struct cdev cdev; + struct mutex lock; + unsigned long flags; + unsigned int usecnt; + struct hsi_client *cl; + struct hsc_channel channels[HSC_DEVS]; +}; + +/* Stores the major number dynamically allocated for hsi_char */ +static unsigned int hsc_major; +/* Maximum buffer size that hsi_char will accept from userspace */ +static unsigned int max_data_size = 0x1000; +module_param(max_data_size, uint, S_IRUSR | S_IWUSR); +MODULE_PARM_DESC(max_data_size, "max read/write data size [4,8..65536] (^2)"); + +static void hsc_add_tail(struct hsc_channel *channel, struct hsi_msg *msg, + struct list_head *queue) +{ + unsigned long flags; + + spin_lock_irqsave(&channel->lock, flags); + list_add_tail(&msg->link, queue); + spin_unlock_irqrestore(&channel->lock, flags); +} + +static struct hsi_msg *hsc_get_first_msg(struct hsc_channel *channel, + struct list_head *queue) +{ + struct hsi_msg *msg = NULL; + unsigned long flags; + + spin_lock_irqsave(&channel->lock, flags); + + if (list_empty(queue)) + goto out; + + msg = list_first_entry(queue, struct hsi_msg, link); + list_del(&msg->link); +out: + spin_unlock_irqrestore(&channel->lock, flags); + + return msg; +} + +static inline void hsc_msg_free(struct hsi_msg *msg) +{ + kfree(sg_virt(msg->sgt.sgl)); + hsi_free_msg(msg); +} + +static void hsc_free_list(struct list_head *list) +{ + struct hsi_msg *msg, *tmp; + + list_for_each_entry_safe(msg, tmp, list, link) { + list_del(&msg->link); + hsc_msg_free(msg); + } +} + +static void hsc_reset_list(struct hsc_channel *channel, struct list_head *l) +{ + unsigned long flags; + LIST_HEAD(list); + + spin_lock_irqsave(&channel->lock, flags); + list_splice_init(l, &list); + spin_unlock_irqrestore(&channel->lock, flags); + + hsc_free_list(&list); +} + +static inline struct hsi_msg *hsc_msg_alloc(unsigned int alloc_size) +{ + struct hsi_msg *msg; + void *buf; + + msg = hsi_alloc_msg(1, GFP_KERNEL); + if (!msg) + goto out; + buf = kmalloc(alloc_size, GFP_KERNEL); + if (!buf) { + hsi_free_msg(msg); + goto out; + } + sg_init_one(msg->sgt.sgl, buf, alloc_size); + /* Ignore false positive, due to sg pointer handling */ + kmemleak_ignore(buf); + + return msg; +out: + return NULL; +} + +static inline int hsc_msgs_alloc(struct hsc_channel *channel) +{ + struct hsi_msg *msg; + int i; + + for (i = 0; i < HSC_MSGS; i++) { + msg = hsc_msg_alloc(max_data_size); + if (!msg) + goto out; + msg->channel = channel->ch; + list_add_tail(&msg->link, &channel->free_msgs_list); + } + + return 0; +out: + hsc_free_list(&channel->free_msgs_list); + + return -ENOMEM; +} + +static inline unsigned int hsc_msg_len_get(struct hsi_msg *msg) +{ + return msg->sgt.sgl->length; +} + +static inline void hsc_msg_len_set(struct hsi_msg *msg, unsigned int len) +{ + msg->sgt.sgl->length = len; +} + +static void hsc_rx_completed(struct hsi_msg *msg) +{ + struct hsc_client_data *cl_data = hsi_client_drvdata(msg->cl); + struct hsc_channel *channel = cl_data->channels + msg->channel; + + if (test_bit(HSC_CH_READ, &channel->flags)) { + hsc_add_tail(channel, msg, &channel->rx_msgs_queue); + wake_up(&channel->rx_wait); + } else { + hsc_add_tail(channel, msg, &channel->free_msgs_list); + } +} + +static void hsc_rx_msg_destructor(struct hsi_msg *msg) +{ + msg->status = HSI_STATUS_ERROR; + hsc_msg_len_set(msg, 0); + hsc_rx_completed(msg); +} + +static void hsc_tx_completed(struct hsi_msg *msg) +{ + struct hsc_client_data *cl_data = hsi_client_drvdata(msg->cl); + struct hsc_channel *channel = cl_data->channels + msg->channel; + + if (test_bit(HSC_CH_WRITE, &channel->flags)) { + hsc_add_tail(channel, msg, &channel->tx_msgs_queue); + wake_up(&channel->tx_wait); + } else { + hsc_add_tail(channel, msg, &channel->free_msgs_list); + } +} + +static void hsc_tx_msg_destructor(struct hsi_msg *msg) +{ + msg->status = HSI_STATUS_ERROR; + hsc_msg_len_set(msg, 0); + hsc_tx_completed(msg); +} + +static void hsc_break_req_destructor(struct hsi_msg *msg) +{ + struct hsc_client_data *cl_data = hsi_client_drvdata(msg->cl); + + hsi_free_msg(msg); + clear_bit(HSC_RXBREAK, &cl_data->flags); +} + +static void hsc_break_received(struct hsi_msg *msg) +{ + struct hsc_client_data *cl_data = hsi_client_drvdata(msg->cl); + struct hsc_channel *channel = cl_data->channels; + int i, ret; + + /* Broadcast HWBREAK on all channels */ + for (i = 0; i < HSC_DEVS; i++, channel++) { + struct hsi_msg *msg2; + + if (!test_bit(HSC_CH_READ, &channel->flags)) + continue; + msg2 = hsc_get_first_msg(channel, &channel->free_msgs_list); + if (!msg2) + continue; + clear_bit(HSC_CH_READ, &channel->flags); + hsc_msg_len_set(msg2, 0); + msg2->status = HSI_STATUS_COMPLETED; + hsc_add_tail(channel, msg2, &channel->rx_msgs_queue); + wake_up(&channel->rx_wait); + } + hsi_flush(msg->cl); + ret = hsi_async_read(msg->cl, msg); + if (ret < 0) + hsc_break_req_destructor(msg); +} + +static int hsc_break_request(struct hsi_client *cl) +{ + struct hsc_client_data *cl_data = hsi_client_drvdata(cl); + struct hsi_msg *msg; + int ret; + + if (test_and_set_bit(HSC_RXBREAK, &cl_data->flags)) + return -EBUSY; + + msg = hsi_alloc_msg(0, GFP_KERNEL); + if (!msg) { + clear_bit(HSC_RXBREAK, &cl_data->flags); + return -ENOMEM; + } + msg->break_frame = 1; + msg->complete = hsc_break_received; + msg->destructor = hsc_break_req_destructor; + ret = hsi_async_read(cl, msg); + if (ret < 0) + hsc_break_req_destructor(msg); + + return ret; +} + +static int hsc_break_send(struct hsi_client *cl) +{ + struct hsi_msg *msg; + int ret; + + msg = hsi_alloc_msg(0, GFP_ATOMIC); + if (!msg) + return -ENOMEM; + msg->break_frame = 1; + msg->complete = hsi_free_msg; + msg->destructor = hsi_free_msg; + ret = hsi_async_write(cl, msg); + if (ret < 0) + hsi_free_msg(msg); + + return ret; +} + +static int hsc_rx_set(struct hsi_client *cl, struct hsc_rx_config *rxc) +{ + struct hsi_config tmp; + int ret; + + if ((rxc->mode != HSI_MODE_STREAM) && (rxc->mode != HSI_MODE_FRAME)) + return -EINVAL; + if ((rxc->channels == 0) || (rxc->channels > HSC_DEVS)) + return -EINVAL; + if (rxc->channels & (rxc->channels - 1)) + return -EINVAL; + if ((rxc->flow != HSI_FLOW_SYNC) && (rxc->flow != HSI_FLOW_PIPE)) + return -EINVAL; + tmp = cl->rx_cfg; + cl->rx_cfg.mode = rxc->mode; + cl->rx_cfg.channels = rxc->channels; + cl->rx_cfg.flow = rxc->flow; + ret = hsi_setup(cl); + if (ret < 0) { + cl->rx_cfg = tmp; + return ret; + } + if (rxc->mode == HSI_MODE_FRAME) + hsc_break_request(cl); + + return ret; +} + +static inline void hsc_rx_get(struct hsi_client *cl, struct hsc_rx_config *rxc) +{ + rxc->mode = cl->rx_cfg.mode; + rxc->channels = cl->rx_cfg.channels; + rxc->flow = cl->rx_cfg.flow; +} + +static int hsc_tx_set(struct hsi_client *cl, struct hsc_tx_config *txc) +{ + struct hsi_config tmp; + int ret; + + if ((txc->mode != HSI_MODE_STREAM) && (txc->mode != HSI_MODE_FRAME)) + return -EINVAL; + if ((txc->channels == 0) || (txc->channels > HSC_DEVS)) + return -EINVAL; + if (txc->channels & (txc->channels - 1)) + return -EINVAL; + if ((txc->arb_mode != HSI_ARB_RR) && (txc->arb_mode != HSI_ARB_PRIO)) + return -EINVAL; + tmp = cl->tx_cfg; + cl->tx_cfg.mode = txc->mode; + cl->tx_cfg.channels = txc->channels; + cl->tx_cfg.speed = txc->speed; + cl->tx_cfg.arb_mode = txc->arb_mode; + ret = hsi_setup(cl); + if (ret < 0) { + cl->tx_cfg = tmp; + return ret; + } + + return ret; +} + +static inline void hsc_tx_get(struct hsi_client *cl, struct hsc_tx_config *txc) +{ + txc->mode = cl->tx_cfg.mode; + txc->channels = cl->tx_cfg.channels; + txc->speed = cl->tx_cfg.speed; + txc->arb_mode = cl->tx_cfg.arb_mode; +} + +static ssize_t hsc_read(struct file *file, char __user *buf, size_t len, + loff_t *ppos __maybe_unused) +{ + struct hsc_channel *channel = file->private_data; + struct hsi_msg *msg; + ssize_t ret; + + if (len == 0) + return 0; + if (!IS_ALIGNED(len, sizeof(u32))) + return -EINVAL; + if (len > max_data_size) + len = max_data_size; + if (channel->ch >= channel->cl->rx_cfg.channels) + return -ECHRNG; + if (test_and_set_bit(HSC_CH_READ, &channel->flags)) + return -EBUSY; + msg = hsc_get_first_msg(channel, &channel->free_msgs_list); + if (!msg) { + ret = -ENOSPC; + goto out; + } + hsc_msg_len_set(msg, len); + msg->complete = hsc_rx_completed; + msg->destructor = hsc_rx_msg_destructor; + ret = hsi_async_read(channel->cl, msg); + if (ret < 0) { + hsc_add_tail(channel, msg, &channel->free_msgs_list); + goto out; + } + + ret = wait_event_interruptible(channel->rx_wait, + !list_empty(&channel->rx_msgs_queue)); + if (ret < 0) { + clear_bit(HSC_CH_READ, &channel->flags); + hsi_flush(channel->cl); + return -EINTR; + } + + msg = hsc_get_first_msg(channel, &channel->rx_msgs_queue); + if (msg) { + if (msg->status != HSI_STATUS_ERROR) { + ret = copy_to_user((void __user *)buf, + sg_virt(msg->sgt.sgl), hsc_msg_len_get(msg)); + if (ret) + ret = -EFAULT; + else + ret = hsc_msg_len_get(msg); + } else { + ret = -EIO; + } + hsc_add_tail(channel, msg, &channel->free_msgs_list); + } +out: + clear_bit(HSC_CH_READ, &channel->flags); + + return ret; +} + +static ssize_t hsc_write(struct file *file, const char __user *buf, size_t len, + loff_t *ppos __maybe_unused) +{ + struct hsc_channel *channel = file->private_data; + struct hsi_msg *msg; + ssize_t ret; + + if ((len == 0) || !IS_ALIGNED(len, sizeof(u32))) + return -EINVAL; + if (len > max_data_size) + len = max_data_size; + if (channel->ch >= channel->cl->tx_cfg.channels) + return -ECHRNG; + if (test_and_set_bit(HSC_CH_WRITE, &channel->flags)) + return -EBUSY; + msg = hsc_get_first_msg(channel, &channel->free_msgs_list); + if (!msg) { + clear_bit(HSC_CH_WRITE, &channel->flags); + return -ENOSPC; + } + if (copy_from_user(sg_virt(msg->sgt.sgl), (void __user *)buf, len)) { + ret = -EFAULT; + goto out; + } + hsc_msg_len_set(msg, len); + msg->complete = hsc_tx_completed; + msg->destructor = hsc_tx_msg_destructor; + ret = hsi_async_write(channel->cl, msg); + if (ret < 0) + goto out; + + ret = wait_event_interruptible(channel->tx_wait, + !list_empty(&channel->tx_msgs_queue)); + if (ret < 0) { + clear_bit(HSC_CH_WRITE, &channel->flags); + hsi_flush(channel->cl); + return -EINTR; + } + + msg = hsc_get_first_msg(channel, &channel->tx_msgs_queue); + if (msg) { + if (msg->status == HSI_STATUS_ERROR) + ret = -EIO; + else + ret = hsc_msg_len_get(msg); + + hsc_add_tail(channel, msg, &channel->free_msgs_list); + } +out: + clear_bit(HSC_CH_WRITE, &channel->flags); + + return ret; +} + +static long hsc_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +{ + struct hsc_channel *channel = file->private_data; + unsigned int state; + struct hsc_rx_config rxc; + struct hsc_tx_config txc; + long ret = 0; + + switch (cmd) { + case HSC_RESET: + hsi_flush(channel->cl); + break; + case HSC_SET_PM: + if (copy_from_user(&state, (void __user *)arg, sizeof(state))) + return -EFAULT; + if (state == HSC_PM_DISABLE) { + if (test_and_set_bit(HSC_CH_WLINE, &channel->flags)) + return -EINVAL; + ret = hsi_start_tx(channel->cl); + } else if (state == HSC_PM_ENABLE) { + if (!test_and_clear_bit(HSC_CH_WLINE, &channel->flags)) + return -EINVAL; + ret = hsi_stop_tx(channel->cl); + } else { + ret = -EINVAL; + } + break; + case HSC_SEND_BREAK: + return hsc_break_send(channel->cl); + case HSC_SET_RX: + if (copy_from_user(&rxc, (void __user *)arg, sizeof(rxc))) + return -EFAULT; + return hsc_rx_set(channel->cl, &rxc); + case HSC_GET_RX: + hsc_rx_get(channel->cl, &rxc); + if (copy_to_user((void __user *)arg, &rxc, sizeof(rxc))) + return -EFAULT; + break; + case HSC_SET_TX: + if (copy_from_user(&txc, (void __user *)arg, sizeof(txc))) + return -EFAULT; + return hsc_tx_set(channel->cl, &txc); + case HSC_GET_TX: + hsc_tx_get(channel->cl, &txc); + if (copy_to_user((void __user *)arg, &txc, sizeof(txc))) + return -EFAULT; + break; + default: + return -ENOIOCTLCMD; + } + + return ret; +} + +static inline void __hsc_port_release(struct hsc_client_data *cl_data) +{ + BUG_ON(cl_data->usecnt == 0); + + if (--cl_data->usecnt == 0) { + hsi_flush(cl_data->cl); + hsi_release_port(cl_data->cl); + } +} + +static int hsc_open(struct inode *inode, struct file *file) +{ + struct hsc_client_data *cl_data; + struct hsc_channel *channel; + int ret = 0; + + pr_debug("open, minor = %d\n", iminor(inode)); + + cl_data = container_of(inode->i_cdev, struct hsc_client_data, cdev); + mutex_lock(&cl_data->lock); + channel = cl_data->channels + (iminor(inode) & HSC_CH_MASK); + + if (test_and_set_bit(HSC_CH_OPEN, &channel->flags)) { + ret = -EBUSY; + goto out; + } + /* + * Check if we have already claimed the port associated to the HSI + * client. If not then try to claim it, else increase its refcount + */ + if (cl_data->usecnt == 0) { + ret = hsi_claim_port(cl_data->cl, 0); + if (ret < 0) + goto out; + hsi_setup(cl_data->cl); + } + cl_data->usecnt++; + + ret = hsc_msgs_alloc(channel); + if (ret < 0) { + __hsc_port_release(cl_data); + goto out; + } + + file->private_data = channel; + mutex_unlock(&cl_data->lock); + + return ret; +out: + mutex_unlock(&cl_data->lock); + + return ret; +} + +static int hsc_release(struct inode *inode __maybe_unused, struct file *file) +{ + struct hsc_channel *channel = file->private_data; + struct hsc_client_data *cl_data = channel->cl_data; + + mutex_lock(&cl_data->lock); + file->private_data = NULL; + if (test_and_clear_bit(HSC_CH_WLINE, &channel->flags)) + hsi_stop_tx(channel->cl); + __hsc_port_release(cl_data); + hsc_reset_list(channel, &channel->rx_msgs_queue); + hsc_reset_list(channel, &channel->tx_msgs_queue); + hsc_reset_list(channel, &channel->free_msgs_list); + clear_bit(HSC_CH_READ, &channel->flags); + clear_bit(HSC_CH_WRITE, &channel->flags); + clear_bit(HSC_CH_OPEN, &channel->flags); + wake_up(&channel->rx_wait); + wake_up(&channel->tx_wait); + mutex_unlock(&cl_data->lock); + + return 0; +} + +static const struct file_operations hsc_fops = { + .owner = THIS_MODULE, + .read = hsc_read, + .write = hsc_write, + .unlocked_ioctl = hsc_ioctl, + .open = hsc_open, + .release = hsc_release, +}; + +static void __devinit hsc_channel_init(struct hsc_channel *channel) +{ + init_waitqueue_head(&channel->rx_wait); + init_waitqueue_head(&channel->tx_wait); + spin_lock_init(&channel->lock); + INIT_LIST_HEAD(&channel->free_msgs_list); + INIT_LIST_HEAD(&channel->rx_msgs_queue); + INIT_LIST_HEAD(&channel->tx_msgs_queue); +} + +static int __devinit hsc_probe(struct device *dev) +{ + const char devname[] = "hsi_char"; + struct hsc_client_data *cl_data; + struct hsc_channel *channel; + struct hsi_client *cl = to_hsi_client(dev); + unsigned int hsc_baseminor; + dev_t hsc_dev; + int ret; + int i; + + cl_data = kzalloc(sizeof(*cl_data), GFP_KERNEL); + if (!cl_data) { + dev_err(dev, "Could not allocate hsc_client_data\n"); + return -ENOMEM; + } + hsc_baseminor = HSC_BASEMINOR(hsi_id(cl), hsi_port_id(cl)); + if (!hsc_major) { + ret = alloc_chrdev_region(&hsc_dev, hsc_baseminor, + HSC_DEVS, devname); + if (ret > 0) + hsc_major = MAJOR(hsc_dev); + } else { + hsc_dev = MKDEV(hsc_major, hsc_baseminor); + ret = register_chrdev_region(hsc_dev, HSC_DEVS, devname); + } + if (ret < 0) { + dev_err(dev, "Device %s allocation failed %d\n", + hsc_major ? "minor" : "major", ret); + goto out1; + } + mutex_init(&cl_data->lock); + hsi_client_set_drvdata(cl, cl_data); + cdev_init(&cl_data->cdev, &hsc_fops); + cl_data->cdev.owner = THIS_MODULE; + cl_data->cl = cl; + for (i = 0, channel = cl_data->channels; i < HSC_DEVS; i++, channel++) { + hsc_channel_init(channel); + channel->ch = i; + channel->cl = cl; + channel->cl_data = cl_data; + } + + /* 1 hsi client -> N char devices (one for each channel) */ + ret = cdev_add(&cl_data->cdev, hsc_dev, HSC_DEVS); + if (ret) { + dev_err(dev, "Could not add char device %d\n", ret); + goto out2; + } + + return 0; +out2: + unregister_chrdev_region(hsc_dev, HSC_DEVS); +out1: + kfree(cl_data); + + return ret; +} + +static int __devexit hsc_remove(struct device *dev) +{ + struct hsi_client *cl = to_hsi_client(dev); + struct hsc_client_data *cl_data = hsi_client_drvdata(cl); + dev_t hsc_dev = cl_data->cdev.dev; + + cdev_del(&cl_data->cdev); + unregister_chrdev_region(hsc_dev, HSC_DEVS); + hsi_client_set_drvdata(cl, NULL); + kfree(cl_data); + + return 0; +} + +static struct hsi_client_driver hsc_driver = { + .driver = { + .name = "hsi_char", + .owner = THIS_MODULE, + .probe = hsc_probe, + .remove = __devexit_p(hsc_remove), + }, +}; + +static int __init hsc_init(void) +{ + int ret; + + if ((max_data_size < 4) || (max_data_size > 0x10000) || + (max_data_size & (max_data_size - 1))) { + pr_err("Invalid max read/write data size"); + return -EINVAL; + } + + ret = hsi_register_client_driver(&hsc_driver); + if (ret) { + pr_err("Error while registering HSI/SSI driver %d", ret); + return ret; + } + + pr_info("HSI/SSI char device loaded\n"); + + return 0; +} +module_init(hsc_init); + +static void __exit hsc_exit(void) +{ + hsi_unregister_client_driver(&hsc_driver); + pr_info("HSI char device removed\n"); +} +module_exit(hsc_exit); + +MODULE_AUTHOR("Andras Domokos "); +MODULE_ALIAS("hsi:hsi_char"); +MODULE_DESCRIPTION("HSI character device"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/hsi/hsi_char.h b/include/linux/hsi/hsi_char.h new file mode 100644 index 0000000..76160b4 --- /dev/null +++ b/include/linux/hsi/hsi_char.h @@ -0,0 +1,63 @@ +/* + * Part of the HSI character device driver. + * + * Copyright (C) 2010 Nokia Corporation. All rights reserved. + * + * Contact: Andras Domokos + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + + +#ifndef __HSI_CHAR_H +#define __HSI_CHAR_H + +#define HSI_CHAR_MAGIC 'k' +#define HSC_IOW(num, dtype) _IOW(HSI_CHAR_MAGIC, num, dtype) +#define HSC_IOR(num, dtype) _IOR(HSI_CHAR_MAGIC, num, dtype) +#define HSC_IOWR(num, dtype) _IOWR(HSI_CHAR_MAGIC, num, dtype) +#define HSC_IO(num) _IO(HSI_CHAR_MAGIC, num) + +#define HSC_RESET HSC_IO(16) +#define HSC_SET_PM HSC_IO(17) +#define HSC_SEND_BREAK HSC_IO(18) +#define HSC_SET_RX HSC_IOW(19, struct hsc_rx_config) +#define HSC_GET_RX HSC_IOW(20, struct hsc_rx_config) +#define HSC_SET_TX HSC_IOW(21, struct hsc_tx_config) +#define HSC_GET_TX HSC_IOW(22, struct hsc_tx_config) + +#define HSC_PM_DISABLE 0 +#define HSC_PM_ENABLE 1 + +#define HSC_MODE_STREAM 1 +#define HSC_MODE_FRAME 2 +#define HSC_FLOW_SYNC 0 +#define HSC_ARB_RR 0 +#define HSC_ARB_PRIO 1 + +struct hsc_rx_config { + uint32_t mode; + uint32_t flow; + uint32_t channels; +}; + +struct hsc_tx_config { + uint32_t mode; + uint32_t channels; + uint32_t speed; + uint32_t arb_mode; +}; + +#endif /* __HSI_CHAR_H */ -- cgit v0.10.2 From f9e402016de91c2444e46ecfd706880969b1ae9e Mon Sep 17 00:00:00 2001 From: Andras Domokos Date: Wed, 21 Apr 2010 12:04:21 +0300 Subject: HSI: hsi_char: Add HSI char device kernel configuration Add HSI character device kernel configuration Signed-off-by: Andras Domokos Signed-off-by: Carlos Chinea diff --git a/drivers/hsi/Kconfig b/drivers/hsi/Kconfig index 937062e..d94e38d 100644 --- a/drivers/hsi/Kconfig +++ b/drivers/hsi/Kconfig @@ -14,4 +14,6 @@ config HSI_BOARDINFO bool default y +source "drivers/hsi/clients/Kconfig" + endif # HSI diff --git a/drivers/hsi/Makefile b/drivers/hsi/Makefile index ed94a3a..9d5d33f 100644 --- a/drivers/hsi/Makefile +++ b/drivers/hsi/Makefile @@ -3,3 +3,4 @@ # obj-$(CONFIG_HSI_BOARDINFO) += hsi_boardinfo.o obj-$(CONFIG_HSI) += hsi.o +obj-y += clients/ diff --git a/drivers/hsi/clients/Kconfig b/drivers/hsi/clients/Kconfig new file mode 100644 index 0000000..3bacd27 --- /dev/null +++ b/drivers/hsi/clients/Kconfig @@ -0,0 +1,13 @@ +# +# HSI clients configuration +# + +comment "HSI clients" + +config HSI_CHAR + tristate "HSI/SSI character driver" + depends on HSI + ---help--- + If you say Y here, you will enable the HSI/SSI character driver. + This driver provides a simple character device interface for + serial communication with the cellular modem over HSI/SSI bus. diff --git a/drivers/hsi/clients/Makefile b/drivers/hsi/clients/Makefile new file mode 100644 index 0000000..327c0e2 --- /dev/null +++ b/drivers/hsi/clients/Makefile @@ -0,0 +1,5 @@ +# +# Makefile for HSI clients +# + +obj-$(CONFIG_HSI_CHAR) += hsi_char.o diff --git a/include/linux/Kbuild b/include/linux/Kbuild index 619b565..3171939 100644 --- a/include/linux/Kbuild +++ b/include/linux/Kbuild @@ -3,6 +3,7 @@ header-y += can/ header-y += caif/ header-y += dvb/ header-y += hdlc/ +header-y += hsi/ header-y += isdn/ header-y += mmc/ header-y += nfsd/ diff --git a/include/linux/hsi/Kbuild b/include/linux/hsi/Kbuild new file mode 100644 index 0000000..271a770 --- /dev/null +++ b/include/linux/hsi/Kbuild @@ -0,0 +1 @@ +header-y += hsi_char.h -- cgit v0.10.2 From a4ac73a701288f633fbf2369ffaae4841aa295b3 Mon Sep 17 00:00:00 2001 From: Carlos Chinea Date: Thu, 29 Apr 2010 13:19:06 +0300 Subject: HSI: Add HSI API documentation Add an entry for HSI in the device-drivers section of the kernel documentation. Signed-off-by: Carlos Chinea diff --git a/Documentation/DocBook/device-drivers.tmpl b/Documentation/DocBook/device-drivers.tmpl index b638e50..5f70f73 100644 --- a/Documentation/DocBook/device-drivers.tmpl +++ b/Documentation/DocBook/device-drivers.tmpl @@ -437,4 +437,21 @@ X!Idrivers/video/console/fonts.c !Edrivers/i2c/i2c-core.c + + High Speed Synchronous Serial Interface (HSI) + + + High Speed Synchronous Serial Interface (HSI) is a + serial interface mainly used for connecting application + engines (APE) with cellular modem engines (CMT) in cellular + handsets. + + HSI provides multiplexing for up to 16 logical channels, + low-latency and full duplex communication. + + +!Iinclude/linux/hsi/hsi.h +!Edrivers/hsi/hsi.c + + -- cgit v0.10.2 From 43139a61fc68f4b0af7327a0e63f340a7c81c69a Mon Sep 17 00:00:00 2001 From: Andras Domokos Date: Thu, 6 May 2010 15:10:47 +0300 Subject: HSI: hsi_char: Update ioctl-number.txt Added ioctl range for HSI char devices to the documentation Signed-off-by: Andras Domokos Signed-off-by: Carlos Chinea diff --git a/Documentation/ioctl/ioctl-number.txt b/Documentation/ioctl/ioctl-number.txt index 54078ed..af76fde 100644 --- a/Documentation/ioctl/ioctl-number.txt +++ b/Documentation/ioctl/ioctl-number.txt @@ -223,6 +223,7 @@ Code Seq#(hex) Include File Comments 'j' 00-3F linux/joystick.h 'k' 00-0F linux/spi/spidev.h conflict! 'k' 00-05 video/kyro.h conflict! +'k' 10-17 linux/hsi/hsi_char.h HSI character device 'l' 00-3F linux/tcfs_fs.h transparent cryptographic file system 'l' 40-7F linux/udf_fs_i.h in development: -- cgit v0.10.2 From ac45d61357e86b9a0cf14e45e8e09dfb626970ef Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Mon, 5 Mar 2012 15:48:11 +0100 Subject: fuse: fix nlink after unlink Anand Avati reports that the following sequence of system calls fail on a fuse filesystem: create("filename") => 0 link("filename", "linkname") => 0 unlink("filename") => 0 link("linkname", "filename") => -ENOENT ### BUG ### vfs_link() fails with ENOENT if i_nlink is zero, this is done to prevent resurrecting already deleted files. Fuse clears i_nlink on unlink even if there are other links pointing to the file. Reported-by: Anand Avati Signed-off-by: Miklos Szeredi diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index 2066328..da37907 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -644,13 +644,12 @@ static int fuse_unlink(struct inode *dir, struct dentry *entry) fuse_put_request(fc, req); if (!err) { struct inode *inode = entry->d_inode; + struct fuse_inode *fi = get_fuse_inode(inode); - /* - * Set nlink to zero so the inode can be cleared, if the inode - * does have more links this will be discovered at the next - * lookup/getattr. - */ - clear_nlink(inode); + spin_lock(&fc->lock); + fi->attr_version = ++fc->attr_version; + drop_nlink(inode); + spin_unlock(&fc->lock); fuse_invalidate_attr(inode); fuse_invalidate_attr(dir); fuse_invalidate_entry_cache(entry); @@ -762,8 +761,17 @@ static int fuse_link(struct dentry *entry, struct inode *newdir, will reflect changes in the backing inode (link count, etc.) */ - if (!err || err == -EINTR) + if (!err) { + struct fuse_inode *fi = get_fuse_inode(inode); + + spin_lock(&fc->lock); + fi->attr_version = ++fc->attr_version; + inc_nlink(inode); + spin_unlock(&fc->lock); fuse_invalidate_attr(inode); + } else if (err == -EINTR) { + fuse_invalidate_attr(inode); + } return err; } -- cgit v0.10.2 From 4273b793ec68753cc3fcf5be7cbfd88c2be2058d Mon Sep 17 00:00:00 2001 From: Anand Avati Date: Fri, 17 Feb 2012 12:46:25 -0500 Subject: fuse: O_DIRECT support for files Implement ->direct_IO() method in aops. The ->direct_IO() method combines the existing fuse_direct_read/fuse_direct_write methods to implement O_DIRECT functionality. Reaching ->direct_IO() in the read path via generic_file_aio_read ensures proper synchronization with page cache with its existing framework. Reaching ->direct_IO() in the write path via fuse_file_aio_write is made to come via generic_file_direct_write() which makes it play nice with the page cache w.r.t other mmap pages etc. On files marked 'direct_io' by the filesystem server, IO always follows the fuse_direct_read/write path. There is no effect of fcntl(O_DIRECT) and it always succeeds. On files not marked with 'direct_io' by the filesystem server, the IO path depends on O_DIRECT flag by the application. This can be passed at the time of open() as well as via fcntl(). Note that asynchronous O_DIRECT iocb jobs are completed synchronously always (this has been the case with FUSE even before this patch) Signed-off-by: Anand Avati Reviewed-by: Jeff Moyer Signed-off-by: Miklos Szeredi diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index da37907..df5ac04 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -387,9 +387,6 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, if (fc->no_create) return -ENOSYS; - if (flags & O_DIRECT) - return -EINVAL; - forget = fuse_alloc_forget(); if (!forget) return -ENOMEM; diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 4a199fd..8ca007d 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -194,10 +194,6 @@ int fuse_open_common(struct inode *inode, struct file *file, bool isdir) struct fuse_conn *fc = get_fuse_conn(inode); int err; - /* VFS checks this, but only _after_ ->open() */ - if (file->f_flags & O_DIRECT) - return -EINVAL; - err = generic_file_open(inode, file); if (err) return err; @@ -932,17 +928,23 @@ static ssize_t fuse_file_aio_write(struct kiocb *iocb, const struct iovec *iov, struct file *file = iocb->ki_filp; struct address_space *mapping = file->f_mapping; size_t count = 0; + size_t ocount = 0; ssize_t written = 0; + ssize_t written_buffered = 0; struct inode *inode = mapping->host; ssize_t err; struct iov_iter i; + loff_t endbyte = 0; WARN_ON(iocb->ki_pos != pos); - err = generic_segment_checks(iov, &nr_segs, &count, VERIFY_READ); + ocount = 0; + err = generic_segment_checks(iov, &nr_segs, &ocount, VERIFY_READ); if (err) return err; + count = ocount; + mutex_lock(&inode->i_mutex); vfs_check_frozen(inode->i_sb, SB_FREEZE_WRITE); @@ -962,11 +964,41 @@ static ssize_t fuse_file_aio_write(struct kiocb *iocb, const struct iovec *iov, file_update_time(file); - iov_iter_init(&i, iov, nr_segs, count, 0); - written = fuse_perform_write(file, mapping, &i, pos); - if (written >= 0) - iocb->ki_pos = pos + written; + if (file->f_flags & O_DIRECT) { + written = generic_file_direct_write(iocb, iov, &nr_segs, + pos, &iocb->ki_pos, + count, ocount); + if (written < 0 || written == count) + goto out; + + pos += written; + count -= written; + iov_iter_init(&i, iov, nr_segs, count, written); + written_buffered = fuse_perform_write(file, mapping, &i, pos); + if (written_buffered < 0) { + err = written_buffered; + goto out; + } + endbyte = pos + written_buffered - 1; + + err = filemap_write_and_wait_range(file->f_mapping, pos, + endbyte); + if (err) + goto out; + + invalidate_mapping_pages(file->f_mapping, + pos >> PAGE_CACHE_SHIFT, + endbyte >> PAGE_CACHE_SHIFT); + + written += written_buffered; + iocb->ki_pos = pos + written_buffered; + } else { + iov_iter_init(&i, iov, nr_segs, count, 0); + written = fuse_perform_write(file, mapping, &i, pos); + if (written >= 0) + iocb->ki_pos = pos + written; + } out: current->backing_dev_info = NULL; mutex_unlock(&inode->i_mutex); @@ -1101,30 +1133,41 @@ static ssize_t fuse_direct_read(struct file *file, char __user *buf, return res; } -static ssize_t fuse_direct_write(struct file *file, const char __user *buf, - size_t count, loff_t *ppos) +static ssize_t __fuse_direct_write(struct file *file, const char __user *buf, + size_t count, loff_t *ppos) { struct inode *inode = file->f_path.dentry->d_inode; ssize_t res; - if (is_bad_inode(inode)) - return -EIO; - - /* Don't allow parallel writes to the same file */ - mutex_lock(&inode->i_mutex); res = generic_write_checks(file, ppos, &count, 0); if (!res) { res = fuse_direct_io(file, buf, count, ppos, 1); if (res > 0) fuse_write_update_size(inode, *ppos); } - mutex_unlock(&inode->i_mutex); fuse_invalidate_attr(inode); return res; } +static ssize_t fuse_direct_write(struct file *file, const char __user *buf, + size_t count, loff_t *ppos) +{ + struct inode *inode = file->f_path.dentry->d_inode; + ssize_t res; + + if (is_bad_inode(inode)) + return -EIO; + + /* Don't allow parallel writes to the same file */ + mutex_lock(&inode->i_mutex); + res = __fuse_direct_write(file, buf, count, ppos); + mutex_unlock(&inode->i_mutex); + + return res; +} + static void fuse_writepage_free(struct fuse_conn *fc, struct fuse_req *req) { __free_page(req->pages[0]); @@ -2077,6 +2120,57 @@ int fuse_notify_poll_wakeup(struct fuse_conn *fc, return 0; } +static ssize_t fuse_loop_dio(struct file *filp, const struct iovec *iov, + unsigned long nr_segs, loff_t *ppos, int rw) +{ + const struct iovec *vector = iov; + ssize_t ret = 0; + + while (nr_segs > 0) { + void __user *base; + size_t len; + ssize_t nr; + + base = vector->iov_base; + len = vector->iov_len; + vector++; + nr_segs--; + + if (rw == WRITE) + nr = __fuse_direct_write(filp, base, len, ppos); + else + nr = fuse_direct_read(filp, base, len, ppos); + + if (nr < 0) { + if (!ret) + ret = nr; + break; + } + ret += nr; + if (nr != len) + break; + } + + return ret; +} + + +static ssize_t +fuse_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov, + loff_t offset, unsigned long nr_segs) +{ + ssize_t ret = 0; + struct file *file = NULL; + loff_t pos = 0; + + file = iocb->ki_filp; + pos = offset; + + ret = fuse_loop_dio(file, iov, nr_segs, &pos, rw); + + return ret; +} + static const struct file_operations fuse_file_operations = { .llseek = fuse_file_llseek, .read = do_sync_read, @@ -2120,6 +2214,7 @@ static const struct address_space_operations fuse_file_aops = { .readpages = fuse_readpages, .set_page_dirty = __set_page_dirty_nobuffers, .bmap = fuse_bmap, + .direct_IO = fuse_direct_IO, }; void fuse_init_file_inode(struct inode *inode) -- cgit v0.10.2 From 387ca5bf4fe2297c93869b6f639afa8d849fb877 Mon Sep 17 00:00:00 2001 From: Rajendra Nayak Date: Mon, 12 Mar 2012 04:29:58 -0600 Subject: ARM: OMAP: hwmod: Use sysc_fields->srst_shift and get rid of hardcoded SYSC_TYPE2_SOFTRESET_MASK MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is useful when we have broken type2 compliant IPs' where the softreset shift is not the same as SYSC_TYPE2_SOFTRESET_SHIFT and hence is overridden using sysc_fields->srst_shift. We have at least one such instance now with onchip keypad on OMAP5 which has a different softreset shift as compared to other type2 IPs'. Signed-off-by: Rajendra Nayak Cc: Paul Walmsley Cc: Benoit Cousson Cc: Balaji TK Tested-by: Sourav Poddar Acked-by: Benoît Cousson Signed-off-by: Paul Walmsley diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index eba6cd3..f9b9bb9 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -1395,7 +1395,7 @@ static int _read_hardreset(struct omap_hwmod *oh, const char *name) */ static int _ocp_softreset(struct omap_hwmod *oh) { - u32 v; + u32 v, softrst_mask; int c = 0; int ret = 0; @@ -1427,11 +1427,13 @@ static int _ocp_softreset(struct omap_hwmod *oh) oh->class->sysc->syss_offs) & SYSS_RESETDONE_MASK), MAX_MODULE_SOFTRESET_WAIT, c); - else if (oh->class->sysc->sysc_flags & SYSC_HAS_RESET_STATUS) + else if (oh->class->sysc->sysc_flags & SYSC_HAS_RESET_STATUS) { + softrst_mask = (0x1 << oh->class->sysc->sysc_fields->srst_shift); omap_test_timeout(!(omap_hwmod_read(oh, oh->class->sysc->sysc_offs) - & SYSC_TYPE2_SOFTRESET_MASK), + & softrst_mask), MAX_MODULE_SOFTRESET_WAIT, c); + } if (c == MAX_MODULE_SOFTRESET_WAIT) pr_warning("omap_hwmod: %s: softreset failed (waited %d usec)\n", -- cgit v0.10.2 From 553e322282655f213d131903ce7019aa25880273 Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Mon, 12 Mar 2012 04:30:02 -0600 Subject: ARM: OMAP4: prm: fix interrupt register offsets Previous code used wrong instance for the interrupt register access. Use the right one which is OCP_SOCKET. Signed-off-by: Tero Kristo Cc: Paul Walmsley Reviewed-by: Santosh Shilimkar Signed-off-by: Paul Walmsley diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c index a1d6154..fbc597f 100644 --- a/arch/arm/mach-omap2/prm44xx.c +++ b/arch/arm/mach-omap2/prm44xx.c @@ -146,8 +146,9 @@ static inline u32 _read_pending_irq_reg(u16 irqen_offs, u16 irqst_offs) u32 mask, st; /* XXX read mask from RAM? */ - mask = omap4_prm_read_inst_reg(OMAP4430_PRM_DEVICE_INST, irqen_offs); - st = omap4_prm_read_inst_reg(OMAP4430_PRM_DEVICE_INST, irqst_offs); + mask = omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST, + irqen_offs); + st = omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST, irqst_offs); return mask & st; } @@ -179,7 +180,7 @@ void omap44xx_prm_read_pending_irqs(unsigned long *events) */ void omap44xx_prm_ocp_barrier(void) { - omap4_prm_read_inst_reg(OMAP4430_PRM_DEVICE_INST, + omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST, OMAP4_REVISION_PRM_OFFSET); } @@ -197,19 +198,19 @@ void omap44xx_prm_ocp_barrier(void) void omap44xx_prm_save_and_clear_irqen(u32 *saved_mask) { saved_mask[0] = - omap4_prm_read_inst_reg(OMAP4430_PRM_DEVICE_INST, + omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST, OMAP4_PRM_IRQSTATUS_MPU_OFFSET); saved_mask[1] = - omap4_prm_read_inst_reg(OMAP4430_PRM_DEVICE_INST, + omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST, OMAP4_PRM_IRQSTATUS_MPU_2_OFFSET); - omap4_prm_write_inst_reg(0, OMAP4430_PRM_DEVICE_INST, + omap4_prm_write_inst_reg(0, OMAP4430_PRM_OCP_SOCKET_INST, OMAP4_PRM_IRQENABLE_MPU_OFFSET); - omap4_prm_write_inst_reg(0, OMAP4430_PRM_DEVICE_INST, + omap4_prm_write_inst_reg(0, OMAP4430_PRM_OCP_SOCKET_INST, OMAP4_PRM_IRQENABLE_MPU_2_OFFSET); /* OCP barrier */ - omap4_prm_read_inst_reg(OMAP4430_PRM_DEVICE_INST, + omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST, OMAP4_REVISION_PRM_OFFSET); } @@ -225,9 +226,9 @@ void omap44xx_prm_save_and_clear_irqen(u32 *saved_mask) */ void omap44xx_prm_restore_irqen(u32 *saved_mask) { - omap4_prm_write_inst_reg(saved_mask[0], OMAP4430_PRM_DEVICE_INST, + omap4_prm_write_inst_reg(saved_mask[0], OMAP4430_PRM_OCP_SOCKET_INST, OMAP4_PRM_IRQENABLE_MPU_OFFSET); - omap4_prm_write_inst_reg(saved_mask[1], OMAP4430_PRM_DEVICE_INST, + omap4_prm_write_inst_reg(saved_mask[1], OMAP4430_PRM_OCP_SOCKET_INST, OMAP4_PRM_IRQENABLE_MPU_2_OFFSET); } -- cgit v0.10.2 From c29f40ca19b8ca284a2d1415e26b802bc9b2fb67 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Tue, 6 Mar 2012 07:52:38 +0000 Subject: ixgbe: Fix issues with SR-IOV loopback when flow control is disabled This patch allows us to avoid a Tx hang when SR-IOV is enabled. This hang can be triggered by sending small packets at a rate that was triggering Rx missed errors from the adapter while the internal Tx switch and at least one VF are enabled. This was all due to the fact that under heavy stress the Rx FIFO never drained below the flow control high water mark. This resulted in the Tx FIFO being head of line blocked due to the fact that it relies on the flow control high water mark to determine when it is acceptable for the Tx to place a packet in the Rx FIFO. The resolution for this is to set the FCRTH value to the RXPBSIZE - 32 so that even if the ring is almost completely full we can still place Tx packets on the Rx ring and drop incoming Rx traffic if we do not have sufficient space available in the Rx FIFO. Signed-off-by: Alexander Duyck Tested-by: Sibai Li Signed-off-by: Jeff Kirsher diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c index 383b941..7d81bee 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c @@ -2011,13 +2011,20 @@ s32 ixgbe_fc_enable_generic(struct ixgbe_hw *hw, s32 packetbuf_num) IXGBE_WRITE_REG(hw, IXGBE_MFLCN, mflcn_reg); IXGBE_WRITE_REG(hw, IXGBE_FCCFG, fccfg_reg); - fcrth = hw->fc.high_water[packetbuf_num] << 10; fcrtl = hw->fc.low_water << 10; if (hw->fc.current_mode & ixgbe_fc_tx_pause) { + fcrth = hw->fc.high_water[packetbuf_num] << 10; fcrth |= IXGBE_FCRTH_FCEN; if (hw->fc.send_xon) fcrtl |= IXGBE_FCRTL_XONE; + } else { + /* + * If Tx flow control is disabled, set our high water mark + * to Rx FIFO size minus 32 in order prevent Tx switch + * loopback from stalling on DMA. + */ + fcrth = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(packetbuf_num)) - 32; } IXGBE_WRITE_REG(hw, IXGBE_FCRTH_82599(packetbuf_num), fcrth); -- cgit v0.10.2 From 0646819cd31786f4b024d0056f73adf460be40aa Mon Sep 17 00:00:00 2001 From: Yi Zou Date: Fri, 16 Mar 2012 00:18:49 +0000 Subject: net: do not do gso for CHECKSUM_UNNECESSARY in netif_needs_gso This is related to fixing the bug of dropping FCoE frames when disabling tx ip checksum by 'ethtool -K ethx tx off'. The FCoE protocol stack driver would use CHECKSUM_UNNECESSARY on tx path instead of CHECKSUM_PARTIAL (as indicated in the 2/2 of this series). To do so, netif_needs_gso() has to be changed here to not do gso for both CHECKSUM_PARTIAL and CHECKSUM_UNNECESSARY. Ref. to original discussion thread: http://patchwork.ozlabs.org/patch/146567/ Signed-off-by: Yi Zou Tested-by: Ross Brattain Signed-off-by: Jeff Kirsher diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 0eac07c..c1b2b5f 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2636,7 +2636,8 @@ static inline int netif_needs_gso(struct sk_buff *skb, netdev_features_t features) { return skb_is_gso(skb) && (!skb_gso_ok(skb, features) || - unlikely(skb->ip_summed != CHECKSUM_PARTIAL)); + unlikely((skb->ip_summed != CHECKSUM_PARTIAL) && + (skb->ip_summed != CHECKSUM_UNNECESSARY))); } static inline void netif_set_gso_max_size(struct net_device *dev, -- cgit v0.10.2 From c98291ee1ceac03912e24b3219fa6e7dc0d52f5e Mon Sep 17 00:00:00 2001 From: Yi Zou Date: Fri, 16 Mar 2012 00:18:54 +0000 Subject: fcoe: use CHECKSUM_UNNECESSARY instead of CHECKSUM_PARTIAL on tx Fix a bug when using 'ethtool -K ethx tx off' to turn off tx ip checksum, FCoE CRC offload should not be impacte. The skb_checksum_help() is needed only if it's not FCoE traffic for ip checksum, regardless of ethtool toggling the tx ip checksum on or off. Instead of using CHECKSUM_PARTIAL, we will use CHECKSUM_UNNECESSARY as a proper indication to avoid sw ip checksum on FCoE frames. Ref. to original discussion thread: http://patchwork.ozlabs.org/patch/146567/ CC: "James E.J. Bottomley" CC: Robert Love Signed-off-by: Yi Zou Tested-by: Ross Brattain Signed-off-by: Jeff Kirsher diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c index e959960..c164890 100644 --- a/drivers/scsi/fcoe/fcoe.c +++ b/drivers/scsi/fcoe/fcoe.c @@ -1498,7 +1498,7 @@ static int fcoe_xmit(struct fc_lport *lport, struct fc_frame *fp) /* crc offload */ if (likely(lport->crc_offload)) { - skb->ip_summed = CHECKSUM_PARTIAL; + skb->ip_summed = CHECKSUM_UNNECESSARY; skb->csum_start = skb_headroom(skb); skb->csum_offset = skb->len; crc = 0; -- cgit v0.10.2 From 4f14faaab4ee46a046b6baff85644be199de718c Mon Sep 17 00:00:00 2001 From: Daniel De Graaf Date: Mon, 28 Nov 2011 11:49:03 -0500 Subject: xen/blkback: use grant-table.c hypercall wrappers Signed-off-by: Daniel De Graaf Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index 0088bf6..3174353 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -321,6 +321,7 @@ struct seg_buf { static void xen_blkbk_unmap(struct pending_req *req) { struct gnttab_unmap_grant_ref unmap[BLKIF_MAX_SEGMENTS_PER_REQUEST]; + struct page *pages[BLKIF_MAX_SEGMENTS_PER_REQUEST]; unsigned int i, invcount = 0; grant_handle_t handle; int ret; @@ -332,25 +333,12 @@ static void xen_blkbk_unmap(struct pending_req *req) gnttab_set_unmap_op(&unmap[invcount], vaddr(req, i), GNTMAP_host_map, handle); pending_handle(req, i) = BLKBACK_INVALID_HANDLE; + pages[invcount] = virt_to_page(vaddr(req, i)); invcount++; } - ret = HYPERVISOR_grant_table_op( - GNTTABOP_unmap_grant_ref, unmap, invcount); + ret = gnttab_unmap_refs(unmap, pages, invcount, false); BUG_ON(ret); - /* - * Note, we use invcount, so nr->pages, so we can't index - * using vaddr(req, i). - */ - for (i = 0; i < invcount; i++) { - ret = m2p_remove_override( - virt_to_page(unmap[i].host_addr), false); - if (ret) { - pr_alert(DRV_PFX "Failed to remove M2P override for %lx\n", - (unsigned long)unmap[i].host_addr); - continue; - } - } } static int xen_blkbk_map(struct blkif_request *req, @@ -378,7 +366,7 @@ static int xen_blkbk_map(struct blkif_request *req, pending_req->blkif->domid); } - ret = HYPERVISOR_grant_table_op(GNTTABOP_map_grant_ref, map, nseg); + ret = gnttab_map_refs(map, NULL, &blkbk->pending_page(pending_req, 0), nseg); BUG_ON(ret); /* @@ -398,15 +386,6 @@ static int xen_blkbk_map(struct blkif_request *req, if (ret) continue; - ret = m2p_add_override(PFN_DOWN(map[i].dev_bus_addr), - blkbk->pending_page(pending_req, i), NULL); - if (ret) { - pr_alert(DRV_PFX "Failed to install M2P override for %lx (ret: %d)\n", - (unsigned long)map[i].dev_bus_addr, ret); - /* We could switch over to GNTTABOP_copy */ - continue; - } - seg[i].buf = map[i].dev_bus_addr | (req->u.rw.seg[i].first_sect << 9); } -- cgit v0.10.2 From b2167ba6dd89d55ced26a867fad8f0fe388fd595 Mon Sep 17 00:00:00 2001 From: Daniel De Graaf Date: Mon, 28 Nov 2011 11:49:05 -0500 Subject: xen/blkback: Enable blkback on HVM guests Signed-off-by: Daniel De Graaf Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index 3174353..70caa89 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -809,7 +809,7 @@ static int __init xen_blkif_init(void) int i, mmap_pages; int rc = 0; - if (!xen_pv_domain()) + if (!xen_domain()) return -ENODEV; blkbk = kzalloc(sizeof(struct xen_blkbk), GFP_KERNEL); -- cgit v0.10.2 From 34ae2e47d97216d8c66a1c5dff5b530c29b746b8 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Sat, 21 Jan 2012 00:15:26 +0900 Subject: xen-blkfront: use bitmap_set() and bitmap_clear() Use bitmap_set and bitmap_clear rather than modifying individual bits in a memory region. Signed-off-by: Akinobu Mita Cc: Jeremy Fitzhardinge Cc: Konrad Rzeszutek Wilk Cc: xen-devel@lists.xensource.com Cc: virtualization@lists.linux-foundation.org Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 2f22874..619868d 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -43,6 +43,7 @@ #include #include #include +#include #include #include @@ -177,8 +178,7 @@ static int xlbd_reserve_minors(unsigned int minor, unsigned int nr) spin_lock(&minor_lock); if (find_next_bit(minors, end, minor) >= end) { - for (; minor < end; ++minor) - __set_bit(minor, minors); + bitmap_set(minors, minor, nr); rc = 0; } else rc = -EBUSY; @@ -193,8 +193,7 @@ static void xlbd_release_minors(unsigned int minor, unsigned int nr) BUG_ON(end > nr_minors); spin_lock(&minor_lock); - for (; minor < end; ++minor) - __clear_bit(minor, minors); + bitmap_clear(minors, minor, nr); spin_unlock(&minor_lock); } -- cgit v0.10.2 From dad5cf659b202b5070c8616b5c515f6ca4db0c42 Mon Sep 17 00:00:00 2001 From: Andrew Jones Date: Thu, 16 Feb 2012 13:16:25 +0100 Subject: xen/blkfront: don't put bdev right after getting it We should hang onto bdev until we're done with it. Signed-off-by: Andrew Jones [v1: Fixed up git commit description] Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 619868d..537cb72 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -1409,7 +1409,6 @@ static int blkif_release(struct gendisk *disk, fmode_t mode) mutex_lock(&blkfront_mutex); bdev = bdget_disk(disk, 0); - bdput(bdev); if (bdev->bd_openers) goto out; @@ -1440,6 +1439,7 @@ static int blkif_release(struct gendisk *disk, fmode_t mode) } out: + bdput(bdev); mutex_unlock(&blkfront_mutex); return 0; } -- cgit v0.10.2 From 3467811e26660eb46bc655234573d22d6876d5f9 Mon Sep 17 00:00:00 2001 From: Steven Noonan Date: Fri, 17 Feb 2012 12:04:44 -0800 Subject: xen-blkfront: make blkif_io_lock spinlock per-device This patch moves the global blkif_io_lock to the per-device structure. The spinlock seems to exists for two reasons: to disable IRQs when in the interrupt handlers for blkfront, and to protect the blkfront VBDs when a detachment is requested. Having a global blkif_io_lock doesn't make sense given the use case, and it drastically hinders performance due to contention. All VBDs with pending IOs have to take the lock in order to get work done, which serializes everything pretty badly. Signed-off-by: Steven Noonan Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 537cb72..5d9c559 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -82,6 +82,7 @@ static const struct block_device_operations xlvbd_block_fops; */ struct blkfront_info { + spinlock_t io_lock; struct mutex mutex; struct xenbus_device *xbdev; struct gendisk *gd; @@ -106,8 +107,6 @@ struct blkfront_info int is_ready; }; -static DEFINE_SPINLOCK(blkif_io_lock); - static unsigned int nr_minors; static unsigned long *minors; static DEFINE_SPINLOCK(minor_lock); @@ -418,7 +417,7 @@ static int xlvbd_init_blk_queue(struct gendisk *gd, u16 sector_size) struct request_queue *rq; struct blkfront_info *info = gd->private_data; - rq = blk_init_queue(do_blkif_request, &blkif_io_lock); + rq = blk_init_queue(do_blkif_request, &info->io_lock); if (rq == NULL) return -1; @@ -635,14 +634,14 @@ static void xlvbd_release_gendisk(struct blkfront_info *info) if (info->rq == NULL) return; - spin_lock_irqsave(&blkif_io_lock, flags); + spin_lock_irqsave(&info->io_lock, flags); /* No more blkif_request(). */ blk_stop_queue(info->rq); /* No more gnttab callback work. */ gnttab_cancel_free_callback(&info->callback); - spin_unlock_irqrestore(&blkif_io_lock, flags); + spin_unlock_irqrestore(&info->io_lock, flags); /* Flush gnttab callback work. Must be done with no locks held. */ flush_work_sync(&info->work); @@ -674,16 +673,16 @@ static void blkif_restart_queue(struct work_struct *work) { struct blkfront_info *info = container_of(work, struct blkfront_info, work); - spin_lock_irq(&blkif_io_lock); + spin_lock_irq(&info->io_lock); if (info->connected == BLKIF_STATE_CONNECTED) kick_pending_request_queues(info); - spin_unlock_irq(&blkif_io_lock); + spin_unlock_irq(&info->io_lock); } static void blkif_free(struct blkfront_info *info, int suspend) { /* Prevent new requests being issued until we fix things up. */ - spin_lock_irq(&blkif_io_lock); + spin_lock_irq(&info->io_lock); info->connected = suspend ? BLKIF_STATE_SUSPENDED : BLKIF_STATE_DISCONNECTED; /* No more blkif_request(). */ @@ -691,7 +690,7 @@ static void blkif_free(struct blkfront_info *info, int suspend) blk_stop_queue(info->rq); /* No more gnttab callback work. */ gnttab_cancel_free_callback(&info->callback); - spin_unlock_irq(&blkif_io_lock); + spin_unlock_irq(&info->io_lock); /* Flush gnttab callback work. Must be done with no locks held. */ flush_work_sync(&info->work); @@ -727,10 +726,10 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id) struct blkfront_info *info = (struct blkfront_info *)dev_id; int error; - spin_lock_irqsave(&blkif_io_lock, flags); + spin_lock_irqsave(&info->io_lock, flags); if (unlikely(info->connected != BLKIF_STATE_CONNECTED)) { - spin_unlock_irqrestore(&blkif_io_lock, flags); + spin_unlock_irqrestore(&info->io_lock, flags); return IRQ_HANDLED; } @@ -815,7 +814,7 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id) kick_pending_request_queues(info); - spin_unlock_irqrestore(&blkif_io_lock, flags); + spin_unlock_irqrestore(&info->io_lock, flags); return IRQ_HANDLED; } @@ -990,6 +989,7 @@ static int blkfront_probe(struct xenbus_device *dev, } mutex_init(&info->mutex); + spin_lock_init(&info->io_lock); info->xbdev = dev; info->vdevice = vdevice; info->connected = BLKIF_STATE_DISCONNECTED; @@ -1067,7 +1067,7 @@ static int blkif_recover(struct blkfront_info *info) xenbus_switch_state(info->xbdev, XenbusStateConnected); - spin_lock_irq(&blkif_io_lock); + spin_lock_irq(&info->io_lock); /* Now safe for us to use the shared ring */ info->connected = BLKIF_STATE_CONNECTED; @@ -1078,7 +1078,7 @@ static int blkif_recover(struct blkfront_info *info) /* Kick any other new requests queued since we resumed */ kick_pending_request_queues(info); - spin_unlock_irq(&blkif_io_lock); + spin_unlock_irq(&info->io_lock); return 0; } @@ -1276,10 +1276,10 @@ static void blkfront_connect(struct blkfront_info *info) xenbus_switch_state(info->xbdev, XenbusStateConnected); /* Kick pending requests. */ - spin_lock_irq(&blkif_io_lock); + spin_lock_irq(&info->io_lock); info->connected = BLKIF_STATE_CONNECTED; kick_pending_request_queues(info); - spin_unlock_irq(&blkif_io_lock); + spin_unlock_irq(&info->io_lock); add_disk(info->gd); -- cgit v0.10.2 From 395d287526bb60411ff37b19ad9dd38b58ba8732 Mon Sep 17 00:00:00 2001 From: "Stephen M. Cameron" Date: Thu, 22 Mar 2012 21:40:08 +0100 Subject: cciss: Initialize scsi host max_sectors for tape drive support The default is too small (1024 blocks), use h->cciss_max_sectors (8192 blocks) Without this change, if you try to set the block size of a tape drive above 512*1024, via "mt -f /dev/st0 setblk nnn" where nnn is greater than 524288, it won't work right. Signed-off-by: Stephen M. Cameron Cc: stable@vger.kernel.org Signed-off-by: Jens Axboe diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c index e820b68..f510a9c 100644 --- a/drivers/block/cciss_scsi.c +++ b/drivers/block/cciss_scsi.c @@ -866,6 +866,7 @@ cciss_scsi_detect(ctlr_info_t *h) sh->can_queue = cciss_tape_cmds; sh->sg_tablesize = h->maxsgentries; sh->max_cmd_len = MAX_COMMAND_SIZE; + sh->max_sectors = h->cciss_max_sectors; ((struct cciss_scsi_adapter_data_t *) h->scsi_ctlr)->scsi_host = sh; -- cgit v0.10.2 From bc67f63650fad6b3478d9ddfd5406d45a95987c9 Mon Sep 17 00:00:00 2001 From: "Stephen M. Cameron" Date: Thu, 22 Mar 2012 21:40:09 +0100 Subject: cciss: Fix scsi tape io with more than 255 scatter gather elements The total number of scatter gather elements in the CISS command used by the scsi tape code was being cast to a u8, which can hold at most 255 scatter gather elements. It should have been cast to a u16. Without this patch the command gets rejected by the controller since the total scatter gather count did not add up to the right value resulting in an i/o error. Signed-off-by: Stephen M. Cameron Cc: stable@vger.kernel.org Signed-off-by: Jens Axboe diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c index f510a9c..acda773 100644 --- a/drivers/block/cciss_scsi.c +++ b/drivers/block/cciss_scsi.c @@ -1411,7 +1411,7 @@ static void cciss_scatter_gather(ctlr_info_t *h, CommandList_struct *c, /* track how many SG entries we are using */ if (request_nsgs > h->maxSG) h->maxSG = request_nsgs; - c->Header.SGTotal = (__u8) request_nsgs + chained; + c->Header.SGTotal = (u16) request_nsgs + chained; if (request_nsgs > h->max_cmd_sgentries) c->Header.SGList = h->max_cmd_sgentries; else -- cgit v0.10.2 From 68523f4233de5f233478dde0a63047b4efb710b8 Mon Sep 17 00:00:00 2001 From: Santosh Shilimkar Date: Mon, 12 Mar 2012 20:34:45 +0530 Subject: ARM: OMAP4: Workaround the OCP synchronisation issue with 32K synctimer. On OMAP4, recently a synchronisation bug is discovered by hardware team, which leads to incorrect timer value read from 32K sync timer IP when the IP is comming out of idle. The issue is due to the synchronization methodology used in the SYNCTIMER IP. The value of the counter register in 32kHz domain is synchronized to the OCP domain register only at count up event, and if the OCP clock is switched off, the OCP register gets out of synch until the first count up event after the clock is switched back -at the next falling edge of the 32kHz clock. Further investigation revealed that it applies to gptimer1 and watchdog timer2 as well which may run on 32KHz. This patch fixes the issue for all the applicable modules. The BUG has not made it yet to the OMAP errata list and it is applicable to OMAP1/2/3/4/5. OMAP1/2/3 it is taken care indirectly by autodeps. By enabling static depedency of wakeup clockdomain with MPU, as soon as MPU is woken up from lowpower state(idle) or whenever MPU is active, PRCM forces the OCP clock to be running and allow the counter value to be updated properly in the OCP clock domain. The bug is going to fixed in future OMAP versions. Reported-Tested-by: dave.long@linaro.org [dave.long@linaro.org: Reported the oprofile time stamp issue with synctimer and helped to test this patch] Signed-off-by: Santosh Shilimkar Signed-off-by: Kevin Hilman diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c index c264ef7..974f7ea 100644 --- a/arch/arm/mach-omap2/pm44xx.c +++ b/arch/arm/mach-omap2/pm44xx.c @@ -196,7 +196,7 @@ static void omap_default_idle(void) static int __init omap4_pm_init(void) { int ret; - struct clockdomain *emif_clkdm, *mpuss_clkdm, *l3_1_clkdm; + struct clockdomain *emif_clkdm, *mpuss_clkdm, *l3_1_clkdm, *l4wkup; struct clockdomain *ducati_clkdm, *l3_2_clkdm, *l4_per_clkdm; if (!cpu_is_omap44xx()) @@ -220,14 +220,19 @@ static int __init omap4_pm_init(void) * MPUSS -> L4_PER/L3_* and DUCATI -> L3_* doesn't work as * expected. The hardware recommendation is to enable static * dependencies for these to avoid system lock ups or random crashes. + * The L4 wakeup depedency is added to workaround the OCP sync hardware + * BUG with 32K synctimer which lead to incorrect timer value read + * from the 32K counter. The BUG applies for GPTIMER1 and WDT2 which + * are part of L4 wakeup clockdomain. */ mpuss_clkdm = clkdm_lookup("mpuss_clkdm"); emif_clkdm = clkdm_lookup("l3_emif_clkdm"); l3_1_clkdm = clkdm_lookup("l3_1_clkdm"); l3_2_clkdm = clkdm_lookup("l3_2_clkdm"); l4_per_clkdm = clkdm_lookup("l4_per_clkdm"); + l4wkup = clkdm_lookup("l4_wkup_clkdm"); ducati_clkdm = clkdm_lookup("ducati_clkdm"); - if ((!mpuss_clkdm) || (!emif_clkdm) || (!l3_1_clkdm) || + if ((!mpuss_clkdm) || (!emif_clkdm) || (!l3_1_clkdm) || (!l4wkup) || (!l3_2_clkdm) || (!ducati_clkdm) || (!l4_per_clkdm)) goto err2; @@ -235,6 +240,7 @@ static int __init omap4_pm_init(void) ret |= clkdm_add_wkdep(mpuss_clkdm, l3_1_clkdm); ret |= clkdm_add_wkdep(mpuss_clkdm, l3_2_clkdm); ret |= clkdm_add_wkdep(mpuss_clkdm, l4_per_clkdm); + ret |= clkdm_add_wkdep(mpuss_clkdm, l4wkup); ret |= clkdm_add_wkdep(ducati_clkdm, l3_1_clkdm); ret |= clkdm_add_wkdep(ducati_clkdm, l3_2_clkdm); if (ret) { -- cgit v0.10.2 From ce229c5d79c03f09d4612dd2bcbff532fdc24e80 Mon Sep 17 00:00:00 2001 From: "Mark A. Greer" Date: Sat, 17 Mar 2012 18:22:47 -0700 Subject: arm: omap3: pm34xx.c: Fix omap3_pm_init() error out paths It appears that the error paths were overlooked when the omap3_pm_init() routine had the prcm chain handler code added. Fix this by adding a goto target and reordering the error handling code. Also fix how the irq argument for free_irq() is determined. Signed-off-by: Mark A. Greer Acked-by: Tero Kristo Signed-off-by: Kevin Hilman diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index fc69875..c598d26 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -817,13 +817,13 @@ static int __init omap3_pm_init(void) if (ret) { pr_err("pm: Failed to request pm_io irq\n"); - goto err1; + goto err2; } ret = pwrdm_for_each(pwrdms_setup, NULL); if (ret) { printk(KERN_ERR "Failed to setup powerdomains\n"); - goto err2; + goto err3; } (void) clkdm_for_each(clkdms_setup, NULL); @@ -831,7 +831,8 @@ static int __init omap3_pm_init(void) mpu_pwrdm = pwrdm_lookup("mpu_pwrdm"); if (mpu_pwrdm == NULL) { printk(KERN_ERR "Failed to get mpu_pwrdm\n"); - goto err2; + ret = -EINVAL; + goto err3; } neon_pwrdm = pwrdm_lookup("neon_pwrdm"); @@ -879,14 +880,17 @@ static int __init omap3_pm_init(void) } omap3_save_scratchpad_contents(); -err1: return ret; -err2: - free_irq(INT_34XX_PRCM_MPU_IRQ, NULL); + +err3: list_for_each_entry_safe(pwrst, tmp, &pwrst_list, node) { list_del(&pwrst->node); kfree(pwrst); } + free_irq(omap_prcm_event_to_irq("io"), omap3_pm_init); +err2: + free_irq(omap_prcm_event_to_irq("wkup"), NULL); +err1: return ret; } -- cgit v0.10.2 From 981798569b090543453baccbc0657fbcea311668 Mon Sep 17 00:00:00 2001 From: "Mark A. Greer" Date: Sat, 17 Mar 2012 18:22:48 -0700 Subject: arm: omap3: pm34xx.c: Replace printk() with appropriate pr_*() Currently, pm34xx.c has a mix of printk() and pr_*() statements so replace the printk() statements with the equivalent pr_*() statements. Signed-off-by: Mark A. Greer Signed-off-by: Kevin Hilman diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index c598d26..6aeacf6 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -166,8 +166,7 @@ static void omap3_save_secure_ram_context(void) pwrdm_set_next_pwrst(mpu_pwrdm, mpu_next_state); /* Following is for error tracking, it should not happen */ if (ret) { - printk(KERN_ERR "save_secure_sram() returns %08x\n", - ret); + pr_err("save_secure_sram() returns %08x\n", ret); while (1) ; } @@ -307,7 +306,7 @@ void omap_sram_idle(void) break; default: /* Invalid state */ - printk(KERN_ERR "Invalid mpu state in sram_idle\n"); + pr_err("Invalid mpu state in sram_idle\n"); return; } @@ -463,18 +462,17 @@ restore: list_for_each_entry(pwrst, &pwrst_list, node) { state = pwrdm_read_prev_pwrst(pwrst->pwrdm); if (state > pwrst->next_state) { - printk(KERN_INFO "Powerdomain (%s) didn't enter " - "target state %d\n", + pr_info("Powerdomain (%s) didn't enter " + "target state %d\n", pwrst->pwrdm->name, pwrst->next_state); ret = -1; } omap_set_pwrdm_state(pwrst->pwrdm, pwrst->saved_state); } if (ret) - printk(KERN_ERR "Could not enter target state in pm_suspend\n"); + pr_err("Could not enter target state in pm_suspend\n"); else - printk(KERN_INFO "Successfully put all powerdomains " - "to target state\n"); + pr_info("Successfully put all powerdomains to target state\n"); return ret; } @@ -822,7 +820,7 @@ static int __init omap3_pm_init(void) ret = pwrdm_for_each(pwrdms_setup, NULL); if (ret) { - printk(KERN_ERR "Failed to setup powerdomains\n"); + pr_err("Failed to setup powerdomains\n"); goto err3; } @@ -830,7 +828,7 @@ static int __init omap3_pm_init(void) mpu_pwrdm = pwrdm_lookup("mpu_pwrdm"); if (mpu_pwrdm == NULL) { - printk(KERN_ERR "Failed to get mpu_pwrdm\n"); + pr_err("Failed to get mpu_pwrdm\n"); ret = -EINVAL; goto err3; } @@ -865,8 +863,8 @@ static int __init omap3_pm_init(void) omap3_secure_ram_storage = kmalloc(0x803F, GFP_KERNEL); if (!omap3_secure_ram_storage) - printk(KERN_ERR "Memory allocation failed when" - "allocating for secure sram context\n"); + pr_err("Memory allocation failed when " + "allocating for secure sram context\n"); local_irq_disable(); local_fiq_disable(); -- cgit v0.10.2 From 9fa2df6b90786301b175e264f5fa9846aba81a65 Mon Sep 17 00:00:00 2001 From: Nishanth Menon Date: Fri, 16 Mar 2012 11:19:09 -0500 Subject: ARM: OMAP2+: OPP: allow OPP enumeration to continue if device is not present On platforms such as OMAP3, certain variants may not have IVA, SGX or some specific component. We currently have a check to aid fixing wrong population of OPP entries for issues such as typos. This however causes a conflict with valid requirement where the SoC variant does not actually have the module present. So, reduce the severity of the print to a debug statement and skip registering that specific OPP, but continue down the list. Reported-by: Steve Sakoman Reported-by: Maximilian Schwerin Acked-by: Steve Sakoman Tested-by: Maximilian Schwerin Signed-off-by: Nishanth Menon Signed-off-by: Kevin Hilman diff --git a/arch/arm/mach-omap2/opp.c b/arch/arm/mach-omap2/opp.c index 9262a6b..de6d464 100644 --- a/arch/arm/mach-omap2/opp.c +++ b/arch/arm/mach-omap2/opp.c @@ -64,10 +64,10 @@ int __init omap_init_opp_table(struct omap_opp_def *opp_def, } oh = omap_hwmod_lookup(opp_def->hwmod_name); if (!oh || !oh->od) { - pr_warn("%s: no hwmod or odev for %s, [%d] " + pr_debug("%s: no hwmod or odev for %s, [%d] " "cannot add OPPs.\n", __func__, opp_def->hwmod_name, i); - return -EINVAL; + continue; } dev = &oh->od->pdev->dev; -- cgit v0.10.2 From 4ba7c3c3c6567210bf46b1ab3d089134170c2762 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Thu, 22 Mar 2012 09:23:37 +0800 Subject: ARM: OMAP3+: fix oops triggered in omap_prcm_register_chain_handler(v1) This patch fixes the oops below[1]. Obviously, the count of "struct irq_chip_generic" instances to be allocated and setup should be irq_setup->nr_regs instead of irq_setup->nr_regs plus one, so just fix the iterator to avoid the oops. [1], oops log. [ 1.790242] Unable to handle kernel NULL pointer dereference at virtual address 00000004 [ 1.798632] pgd = c0004000 [ 1.801638] [00000004] *pgd=00000000 [ 1.805400] Internal error: Oops: 805 [#1] PREEMPT SMP THUMB2 [ 1.811381] Modules linked in: [ 1.814601] CPU: 1 Not tainted (3.3.0-next-20120320+ #733) [ 1.820683] PC is at irq_setup_generic_chip+0x6a/0x84 [ 1.825951] LR is at irq_get_irq_data+0x7/0x8 [ 1.830508] pc : [] lr : [] psr: 20000133 [ 1.830512] sp : ee04ff58 ip : 00000000 fp : 00000000 [ 1.842461] r10: 00000000 r9 : 00000000 r8 : 00000800 [ 1.847905] r7 : c064e260 r6 : 000001dc r5 : 00000001 r4 : ee0accc0 [ 1.854687] r3 : 00000002 r2 : 00000800 r1 : 000001dc r0 : 00000000 [ 1.861472] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA Thumb Segment kernel [ 1.869234] Control: 50c5387d Table: 8000404a DAC: 00000015 [ 1.875215] Process swapper/0 (pid: 1, stack limit = 0xee04e2f8) [ 1.881463] Stack: (0xee04ff58 to 0xee050000) [ 1.886017] ff40: c061b668 00000008 [ 1.894497] ff60: c0682090 ee0accc0 00000003 c001c637 00000000 00000000 00000201 00000000 [ 1.902976] ff80: 00000004 c0473820 c0473800 c0459e8d c0680ac0 c000866d 00000004 00000004 [ 1.911455] ffa0: ee04ffa8 00000004 c047381c 00000004 c0473820 c0473800 c0680ac0 00000082 [ 1.919934] ffc0: c0489694 c045265f 00000004 00000004 c0452135 c000d105 00000033 00000000 [ 1.928413] ffe0: c04525b5 c000d111 00000033 00000000 00000000 c000d111 aaaaaaaa aaaaaaaa [ 1.936912] [] (irq_setup_generic_chip+0x6a/0x84) from [] (omap_prcm_register_chain_handler+0x147/0x1a0) [ 1.948516] [] (omap_prcm_register_chain_handler+0x147/0x1a0) from [] (do_one_initcall+0x65/0xf4) [ 1.959500] [] (do_one_initcall+0x65/0xf4) from [] (kernel_init+0xab/0x138) [ 1.968529] [] (kernel_init+0xab/0x138) from [] (kernel_thread_exit+0x1/0x6) [ 1.977632] Code: f7ff f9d1 6b23 1af3 (6043) 086d [ 1.982684] ---[ end trace 1b75b31a2719ed1c ]--- [ 1.987526] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b Acked-by: Tero Kristo Signed-off-by: Ming Lei Signed-off-by: Kevin Hilman diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c index 860118a..de58b8b 100644 --- a/arch/arm/mach-omap2/prm_common.c +++ b/arch/arm/mach-omap2/prm_common.c @@ -291,7 +291,7 @@ int omap_prcm_register_chain_handler(struct omap_prcm_irq_setup *irq_setup) goto err; } - for (i = 0; i <= irq_setup->nr_regs; i++) { + for (i = 0; i < irq_setup->nr_regs; i++) { gc = irq_alloc_generic_chip("PRCM", 1, irq_setup->base_irq + i * 32, prm_base, handle_level_irq); -- cgit v0.10.2 From 00380a404fc4235e9b8b39598138bd3223a27b8a Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 23 Mar 2012 09:58:54 +0100 Subject: block: blk_alloc_queue_node(): use caller's GFP flags instead of GFP_KERNEL We should use the GFP flags that the caller specified instead of picking our own. All the callers specify GFP_KERNEL so this doesn't make a difference to how the kernel runs, it's just a cleanup. Signed-off-by: Dan Carpenter Signed-off-by: Jens Axboe diff --git a/block/blk-core.c b/block/blk-core.c index 3a78b00..414e822 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -483,7 +483,7 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id) if (!q) return NULL; - q->id = ida_simple_get(&blk_queue_ida, 0, 0, GFP_KERNEL); + q->id = ida_simple_get(&blk_queue_ida, 0, 0, gfp_mask); if (q->id < 0) goto fail_q; -- cgit v0.10.2 From 22be2e6e13ac09b20000582ac34d47fb0029a6da Mon Sep 17 00:00:00 2001 From: Asai Thambi S P Date: Fri, 23 Mar 2012 12:33:03 +0100 Subject: mtip32xx: fix incorrect value set for drv_cleanup_done, and re-initialize and start port in mtip_restart_port() This patch includes two changes: * fix incorrect value set for drv_cleanup_done * re-initialize and start port in mtip_restart_port() Signed-off-by: Asai Thambi S P Signed-off-by: Sam Bradshaw Signed-off-by: Jens Axboe diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index 8eb81c9..04f69e6 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -422,6 +422,10 @@ static void mtip_init_port(struct mtip_port *port) /* Clear any pending interrupts for this port */ writel(readl(port->mmio + PORT_IRQ_STAT), port->mmio + PORT_IRQ_STAT); + /* Clear any pending interrupts on the HBA. */ + writel(readl(port->dd->mmio + HOST_IRQ_STAT), + port->dd->mmio + HOST_IRQ_STAT); + /* Enable port interrupts */ writel(DEF_PORT_IRQ, port->mmio + PORT_IRQ_MASK); } @@ -490,11 +494,9 @@ static void mtip_restart_port(struct mtip_port *port) dev_warn(&port->dd->pdev->dev, "COM reset failed\n"); - /* Clear SError, the PxSERR.DIAG.x should be set so clear it */ - writel(readl(port->mmio + PORT_SCR_ERR), port->mmio + PORT_SCR_ERR); + mtip_init_port(port); + mtip_start_port(port); - /* Enable the DMA engine */ - mtip_enable_engine(port, 1); } /* @@ -3359,9 +3361,6 @@ static int mtip_pci_probe(struct pci_dev *pdev, return -ENOMEM; } - /* Set the atomic variable as 1 in case of SRSI */ - atomic_set(&dd->drv_cleanup_done, true); - atomic_set(&dd->resumeflag, false); /* Attach the private data to this PCI device. */ @@ -3434,8 +3433,8 @@ iomap_err: pci_set_drvdata(pdev, NULL); return rv; done: - /* Set the atomic variable as 0 in case of SRSI */ - atomic_set(&dd->drv_cleanup_done, true); + /* Set the atomic variable as 0 */ + atomic_set(&dd->drv_cleanup_done, false); return rv; } @@ -3463,8 +3462,6 @@ static void mtip_pci_remove(struct pci_dev *pdev) } } } - /* Set the atomic variable as 1 in case of SRSI */ - atomic_set(&dd->drv_cleanup_done, true); /* Clean up the block layer. */ mtip_block_remove(dd); -- cgit v0.10.2 From 275029353953c2117941ade84f02a2303912fad1 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 23 Mar 2012 13:36:42 -0700 Subject: ioat: fix size of 'completion' for Xen Starting with v3.2 Jonathan reports that Xen crashes loading the ioatdma driver. A debug run shows: ioatdma 0000:00:16.4: desc[0]: (0x300cc7000->0x300cc7040) cookie: 0 flags: 0x2 ctl: 0x29 (op: 0 int_en: 1 compl: 1) ... ioatdma 0000:00:16.4: ioat_get_current_completion: phys_complete: 0xcc7000 ...which shows that in this environment GFP_KERNEL memory may be backed by a 64-bit dma address. This breaks the driver's assumption that an unsigned long should be able to contain the physical address for descriptor memory. Switch to dma_addr_t which beyond being the right size, is the true type for the data i.e. an io-virtual address inidicating the engine's last processed descriptor. [stable: 3.2+] Cc: Reported-by: Jonathan Nieder Reported-by: William Dauchy Tested-by: William Dauchy Tested-by: Dave Jiang Signed-off-by: Dan Williams diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c index a4d6cb0..6595180 100644 --- a/drivers/dma/ioat/dma.c +++ b/drivers/dma/ioat/dma.c @@ -548,9 +548,9 @@ void ioat_dma_unmap(struct ioat_chan_common *chan, enum dma_ctrl_flags flags, PCI_DMA_TODEVICE, flags, 0); } -unsigned long ioat_get_current_completion(struct ioat_chan_common *chan) +dma_addr_t ioat_get_current_completion(struct ioat_chan_common *chan) { - unsigned long phys_complete; + dma_addr_t phys_complete; u64 completion; completion = *chan->completion; @@ -571,7 +571,7 @@ unsigned long ioat_get_current_completion(struct ioat_chan_common *chan) } bool ioat_cleanup_preamble(struct ioat_chan_common *chan, - unsigned long *phys_complete) + dma_addr_t *phys_complete) { *phys_complete = ioat_get_current_completion(chan); if (*phys_complete == chan->last_completion) @@ -582,14 +582,14 @@ bool ioat_cleanup_preamble(struct ioat_chan_common *chan, return true; } -static void __cleanup(struct ioat_dma_chan *ioat, unsigned long phys_complete) +static void __cleanup(struct ioat_dma_chan *ioat, dma_addr_t phys_complete) { struct ioat_chan_common *chan = &ioat->base; struct list_head *_desc, *n; struct dma_async_tx_descriptor *tx; - dev_dbg(to_dev(chan), "%s: phys_complete: %lx\n", - __func__, phys_complete); + dev_dbg(to_dev(chan), "%s: phys_complete: %llx\n", + __func__, (unsigned long long) phys_complete); list_for_each_safe(_desc, n, &ioat->used_desc) { struct ioat_desc_sw *desc; @@ -655,7 +655,7 @@ static void __cleanup(struct ioat_dma_chan *ioat, unsigned long phys_complete) static void ioat1_cleanup(struct ioat_dma_chan *ioat) { struct ioat_chan_common *chan = &ioat->base; - unsigned long phys_complete; + dma_addr_t phys_complete; prefetch(chan->completion); @@ -701,7 +701,7 @@ static void ioat1_timer_event(unsigned long data) mod_timer(&chan->timer, jiffies + COMPLETION_TIMEOUT); spin_unlock_bh(&ioat->desc_lock); } else if (test_bit(IOAT_COMPLETION_PENDING, &chan->state)) { - unsigned long phys_complete; + dma_addr_t phys_complete; spin_lock_bh(&ioat->desc_lock); /* if we haven't made progress and we have already diff --git a/drivers/dma/ioat/dma.h b/drivers/dma/ioat/dma.h index 5216c8a..8bebddd 100644 --- a/drivers/dma/ioat/dma.h +++ b/drivers/dma/ioat/dma.h @@ -88,7 +88,7 @@ struct ioatdma_device { struct ioat_chan_common { struct dma_chan common; void __iomem *reg_base; - unsigned long last_completion; + dma_addr_t last_completion; spinlock_t cleanup_lock; dma_cookie_t completed_cookie; unsigned long state; @@ -333,7 +333,7 @@ int __devinit ioat_dma_self_test(struct ioatdma_device *device); void __devexit ioat_dma_remove(struct ioatdma_device *device); struct dca_provider * __devinit ioat_dca_init(struct pci_dev *pdev, void __iomem *iobase); -unsigned long ioat_get_current_completion(struct ioat_chan_common *chan); +dma_addr_t ioat_get_current_completion(struct ioat_chan_common *chan); void ioat_init_channel(struct ioatdma_device *device, struct ioat_chan_common *chan, int idx); enum dma_status ioat_dma_tx_status(struct dma_chan *c, dma_cookie_t cookie, @@ -341,7 +341,7 @@ enum dma_status ioat_dma_tx_status(struct dma_chan *c, dma_cookie_t cookie, void ioat_dma_unmap(struct ioat_chan_common *chan, enum dma_ctrl_flags flags, size_t len, struct ioat_dma_descriptor *hw); bool ioat_cleanup_preamble(struct ioat_chan_common *chan, - unsigned long *phys_complete); + dma_addr_t *phys_complete); void ioat_kobject_add(struct ioatdma_device *device, struct kobj_type *type); void ioat_kobject_del(struct ioatdma_device *device); extern const struct sysfs_ops ioat_sysfs_ops; diff --git a/drivers/dma/ioat/dma_v2.c b/drivers/dma/ioat/dma_v2.c index 5d65f83..cb8864d 100644 --- a/drivers/dma/ioat/dma_v2.c +++ b/drivers/dma/ioat/dma_v2.c @@ -126,7 +126,7 @@ static void ioat2_start_null_desc(struct ioat2_dma_chan *ioat) spin_unlock_bh(&ioat->prep_lock); } -static void __cleanup(struct ioat2_dma_chan *ioat, unsigned long phys_complete) +static void __cleanup(struct ioat2_dma_chan *ioat, dma_addr_t phys_complete) { struct ioat_chan_common *chan = &ioat->base; struct dma_async_tx_descriptor *tx; @@ -178,7 +178,7 @@ static void __cleanup(struct ioat2_dma_chan *ioat, unsigned long phys_complete) static void ioat2_cleanup(struct ioat2_dma_chan *ioat) { struct ioat_chan_common *chan = &ioat->base; - unsigned long phys_complete; + dma_addr_t phys_complete; spin_lock_bh(&chan->cleanup_lock); if (ioat_cleanup_preamble(chan, &phys_complete)) @@ -259,7 +259,7 @@ int ioat2_reset_sync(struct ioat_chan_common *chan, unsigned long tmo) static void ioat2_restart_channel(struct ioat2_dma_chan *ioat) { struct ioat_chan_common *chan = &ioat->base; - unsigned long phys_complete; + dma_addr_t phys_complete; ioat2_quiesce(chan, 0); if (ioat_cleanup_preamble(chan, &phys_complete)) @@ -274,7 +274,7 @@ void ioat2_timer_event(unsigned long data) struct ioat_chan_common *chan = &ioat->base; if (test_bit(IOAT_COMPLETION_PENDING, &chan->state)) { - unsigned long phys_complete; + dma_addr_t phys_complete; u64 status; status = ioat_chansts(chan); diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c index f519c93..2dbf32b 100644 --- a/drivers/dma/ioat/dma_v3.c +++ b/drivers/dma/ioat/dma_v3.c @@ -256,7 +256,7 @@ static bool desc_has_ext(struct ioat_ring_ent *desc) * The difference from the dma_v2.c __cleanup() is that this routine * handles extended descriptors and dma-unmapping raid operations. */ -static void __cleanup(struct ioat2_dma_chan *ioat, unsigned long phys_complete) +static void __cleanup(struct ioat2_dma_chan *ioat, dma_addr_t phys_complete) { struct ioat_chan_common *chan = &ioat->base; struct ioat_ring_ent *desc; @@ -314,7 +314,7 @@ static void __cleanup(struct ioat2_dma_chan *ioat, unsigned long phys_complete) static void ioat3_cleanup(struct ioat2_dma_chan *ioat) { struct ioat_chan_common *chan = &ioat->base; - unsigned long phys_complete; + dma_addr_t phys_complete; spin_lock_bh(&chan->cleanup_lock); if (ioat_cleanup_preamble(chan, &phys_complete)) @@ -333,7 +333,7 @@ static void ioat3_cleanup_event(unsigned long data) static void ioat3_restart_channel(struct ioat2_dma_chan *ioat) { struct ioat_chan_common *chan = &ioat->base; - unsigned long phys_complete; + dma_addr_t phys_complete; ioat2_quiesce(chan, 0); if (ioat_cleanup_preamble(chan, &phys_complete)) @@ -348,7 +348,7 @@ static void ioat3_timer_event(unsigned long data) struct ioat_chan_common *chan = &ioat->base; if (test_bit(IOAT_COMPLETION_PENDING, &chan->state)) { - unsigned long phys_complete; + dma_addr_t phys_complete; u64 status; status = ioat_chansts(chan); -- cgit v0.10.2 From 4dae76705fc8f9854bb732f9944e7ff9ba7a8e9f Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Tue, 13 Mar 2012 18:43:23 -0400 Subject: xen/blkback: Squash the discard support for 'file' and 'phy' type. The only reason for the distinction was for the special case of 'file' (which is assumed to be loopback device), was to reach inside the loopback device, find the underlaying file, and call fallocate on it. Fortunately "xen-blkback: convert hole punching to discard request on loop devices" removes that use-case and we now based the discard support based on blk_queue_discard(q) and extract all appropriate parameters from the 'struct request_queue'. CC: Li Dongyang Acked-by: Jan Beulich [v1: Dropping pointless initializer and keeping blank line] [v2: Remove the kfree as it is not used anymore] Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index 70caa89..73f196c 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -398,21 +398,18 @@ static int dispatch_discard_io(struct xen_blkif *blkif, int err = 0; int status = BLKIF_RSP_OKAY; struct block_device *bdev = blkif->vbd.bdev; + unsigned long secure; blkif->st_ds_req++; xen_blkif_get(blkif); - if (blkif->blk_backend_type == BLKIF_BACKEND_PHY || - blkif->blk_backend_type == BLKIF_BACKEND_FILE) { - unsigned long secure = (blkif->vbd.discard_secure && - (req->u.discard.flag & BLKIF_DISCARD_SECURE)) ? - BLKDEV_DISCARD_SECURE : 0; - err = blkdev_issue_discard(bdev, - req->u.discard.sector_number, - req->u.discard.nr_sectors, - GFP_KERNEL, secure); - } else - err = -EOPNOTSUPP; + secure = (blkif->vbd.discard_secure && + (req->u.discard.flag & BLKIF_DISCARD_SECURE)) ? + BLKDEV_DISCARD_SECURE : 0; + + err = blkdev_issue_discard(bdev, req->u.discard.sector_number, + req->u.discard.nr_sectors, + GFP_KERNEL, secure); if (err == -EOPNOTSUPP) { pr_debug(DRV_PFX "discard op failed, not supported\n"); diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h index d0ee7ed..773cf27 100644 --- a/drivers/block/xen-blkback/common.h +++ b/drivers/block/xen-blkback/common.h @@ -146,11 +146,6 @@ enum blkif_protocol { BLKIF_PROTOCOL_X86_64 = 3, }; -enum blkif_backend_type { - BLKIF_BACKEND_PHY = 1, - BLKIF_BACKEND_FILE = 2, -}; - struct xen_vbd { /* What the domain refers to this vbd as. */ blkif_vdev_t handle; @@ -177,7 +172,6 @@ struct xen_blkif { unsigned int irq; /* Comms information. */ enum blkif_protocol blk_protocol; - enum blkif_backend_type blk_backend_type; union blkif_back_rings blk_rings; void *blk_ring; /* The VBD attached to this interface. */ diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index 24a2fb5..d417c13 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -390,61 +390,43 @@ int xen_blkbk_discard(struct xenbus_transaction xbt, struct backend_info *be) { struct xenbus_device *dev = be->dev; struct xen_blkif *blkif = be->blkif; - char *type; int err; int state = 0; + struct block_device *bdev = be->blkif->vbd.bdev; + struct request_queue *q = bdev_get_queue(bdev); - type = xenbus_read(XBT_NIL, dev->nodename, "type", NULL); - if (!IS_ERR(type)) { - if (strncmp(type, "file", 4) == 0) { - state = 1; - blkif->blk_backend_type = BLKIF_BACKEND_FILE; + if (blk_queue_discard(q)) { + err = xenbus_printf(xbt, dev->nodename, + "discard-granularity", "%u", + q->limits.discard_granularity); + if (err) { + xenbus_dev_fatal(dev, err, + "writing discard-granularity"); + goto out; + } + err = xenbus_printf(xbt, dev->nodename, + "discard-alignment", "%u", + q->limits.discard_alignment); + if (err) { + xenbus_dev_fatal(dev, err, + "writing discard-alignment"); + goto out; } - if (strncmp(type, "phy", 3) == 0) { - struct block_device *bdev = be->blkif->vbd.bdev; - struct request_queue *q = bdev_get_queue(bdev); - if (blk_queue_discard(q)) { - err = xenbus_printf(xbt, dev->nodename, - "discard-granularity", "%u", - q->limits.discard_granularity); - if (err) { - xenbus_dev_fatal(dev, err, - "writing discard-granularity"); - goto kfree; - } - err = xenbus_printf(xbt, dev->nodename, - "discard-alignment", "%u", - q->limits.discard_alignment); - if (err) { - xenbus_dev_fatal(dev, err, - "writing discard-alignment"); - goto kfree; - } - state = 1; - blkif->blk_backend_type = BLKIF_BACKEND_PHY; - } - /* Optional. */ - err = xenbus_printf(xbt, dev->nodename, - "discard-secure", "%d", - blkif->vbd.discard_secure); - if (err) { - xenbus_dev_fatal(dev, err, + state = 1; + /* Optional. */ + err = xenbus_printf(xbt, dev->nodename, + "discard-secure", "%d", + blkif->vbd.discard_secure); + if (err) { + xenbus_dev_fatal(dev, err, "writting discard-secure"); - goto kfree; - } + goto out; } - } else { - err = PTR_ERR(type); - xenbus_dev_fatal(dev, err, "reading type"); - goto out; } - err = xenbus_printf(xbt, dev->nodename, "feature-discard", "%d", state); if (err) xenbus_dev_fatal(dev, err, "writing feature-discard"); -kfree: - kfree(type); out: return err; } -- cgit v0.10.2 From 3389bb8bf76180eecaffdfa7dd5b35fa4a2ce9b5 Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Wed, 14 Mar 2012 13:04:00 -0400 Subject: xen/blkback: Make optional features be really optional. They were using the xenbus_dev_fatal() function which would change the state of the connection immediately. Which is not what we want when we advertise optional features. So make 'feature-discard','feature-barrier','feature-flush-cache' optional. Suggested-by: Jan Beulich [v1: Made the discard function void and static] Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index d417c13..89860f3 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -381,12 +381,12 @@ int xen_blkbk_flush_diskcache(struct xenbus_transaction xbt, err = xenbus_printf(xbt, dev->nodename, "feature-flush-cache", "%d", state); if (err) - xenbus_dev_fatal(dev, err, "writing feature-flush-cache"); + dev_warn(&dev->dev, "writing feature-flush-cache (%d)", err); return err; } -int xen_blkbk_discard(struct xenbus_transaction xbt, struct backend_info *be) +static void xen_blkbk_discard(struct xenbus_transaction xbt, struct backend_info *be) { struct xenbus_device *dev = be->dev; struct xen_blkif *blkif = be->blkif; @@ -400,17 +400,15 @@ int xen_blkbk_discard(struct xenbus_transaction xbt, struct backend_info *be) "discard-granularity", "%u", q->limits.discard_granularity); if (err) { - xenbus_dev_fatal(dev, err, - "writing discard-granularity"); - goto out; + dev_warn(&dev->dev, "writing discard-granularity (%d)", err); + return; } err = xenbus_printf(xbt, dev->nodename, "discard-alignment", "%u", q->limits.discard_alignment); if (err) { - xenbus_dev_fatal(dev, err, - "writing discard-alignment"); - goto out; + dev_warn(&dev->dev, "writing discard-alignment (%d)", err); + return; } state = 1; /* Optional. */ @@ -418,17 +416,14 @@ int xen_blkbk_discard(struct xenbus_transaction xbt, struct backend_info *be) "discard-secure", "%d", blkif->vbd.discard_secure); if (err) { - xenbus_dev_fatal(dev, err, - "writting discard-secure"); - goto out; + dev_warn(dev-dev, "writing discard-secure (%d)", err); + return; } } err = xenbus_printf(xbt, dev->nodename, "feature-discard", "%d", state); if (err) - xenbus_dev_fatal(dev, err, "writing feature-discard"); -out: - return err; + dev_warn(&dev->dev, "writing feature-discard (%d)", err); } int xen_blkbk_barrier(struct xenbus_transaction xbt, struct backend_info *be, int state) @@ -439,7 +434,7 @@ int xen_blkbk_barrier(struct xenbus_transaction xbt, err = xenbus_printf(xbt, dev->nodename, "feature-barrier", "%d", state); if (err) - xenbus_dev_fatal(dev, err, "writing feature-barrier"); + dev_warn(&dev->dev, "writing feature-barrier (%d)", err); return err; } @@ -671,14 +666,12 @@ again: return; } - err = xen_blkbk_flush_diskcache(xbt, be, be->blkif->vbd.flush_support); - if (err) - goto abort; + /* If we can't advertise it is OK. */ + xen_blkbk_flush_diskcache(xbt, be, be->blkif->vbd.flush_support); - err = xen_blkbk_discard(xbt, be); + xen_blkbk_discard(xbt, be); - /* If we can't advertise it is OK. */ - err = xen_blkbk_barrier(xbt, be, be->blkif->vbd.flush_support); + xen_blkbk_barrier(xbt, be, be->blkif->vbd.flush_support); err = xenbus_printf(xbt, dev->nodename, "sectors", "%llu", (unsigned long long)vbd_sz(&be->blkif->vbd)); -- cgit v0.10.2 From c1ac539ed43f273cd4d92bf7350ffd783b920184 Mon Sep 17 00:00:00 2001 From: Bob Peterson Date: Thu, 22 Mar 2012 08:58:30 -0400 Subject: GFS2: put glock reference in error patch of read_rindex_entry This patch fixes the error path of function read_rindex_entry so that it correctly gives up its glock reference in cases where there is a race to re-read the rindex after gfs2_grow. Signed-off-by: Bob Peterson Signed-off-by: Steven Whitehouse diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c index 19bde40..19354a2 100644 --- a/fs/gfs2/rgrp.c +++ b/fs/gfs2/rgrp.c @@ -640,6 +640,7 @@ static int read_rindex_entry(struct gfs2_inode *ip, return 0; error = 0; /* someone else read in the rgrp; free it and ignore it */ + gfs2_glock_put(rgd->rd_gl); fail: kfree(rgd->rd_bits); -- cgit v0.10.2 From 97cc008aaa8c1f02699b478ca890e81810244131 Mon Sep 17 00:00:00 2001 From: Benjamin Poirier Date: Fri, 23 Mar 2012 18:06:18 -0400 Subject: GFS2: use depends instead of select in kconfig Avoids having to duplicate the dependencies of what is 'select'ed (and on down...) Those dependencies are currently incomplete, leading to broken builds with GFS2_FS_LOCKING_DLM=y and IP_SCTP=n. Signed-off-by: Benjamin Poirier Signed-off-by: Steven Whitehouse diff --git a/fs/gfs2/Kconfig b/fs/gfs2/Kconfig index c465ae0..eb08c9e 100644 --- a/fs/gfs2/Kconfig +++ b/fs/gfs2/Kconfig @@ -1,10 +1,6 @@ config GFS2_FS tristate "GFS2 file system support" depends on (64BIT || LBDAF) - select DLM if GFS2_FS_LOCKING_DLM - select CONFIGFS_FS if GFS2_FS_LOCKING_DLM - select SYSFS if GFS2_FS_LOCKING_DLM - select IP_SCTP if DLM_SCTP select FS_POSIX_ACL select CRC32 select QUOTACTL @@ -29,7 +25,8 @@ config GFS2_FS config GFS2_FS_LOCKING_DLM bool "GFS2 DLM locking" - depends on (GFS2_FS!=n) && NET && INET && (IPV6 || IPV6=n) && HOTPLUG + depends on (GFS2_FS!=n) && NET && INET && (IPV6 || IPV6=n) && \ + HOTPLUG && DLM && CONFIGFS_FS && SYSFS help Multiple node locking module for GFS2 -- cgit v0.10.2 From 51579137c500362018b5341f5dca47807ed558aa Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sat, 24 Mar 2012 09:37:30 +0800 Subject: regulator: tps6586x: Fix list minimal voltage setting for LDO0 According to the datasheet, LDO0 has minimal voltage 1.2V rather than 1.25V. Table 3-39. VLDO0[2:0] Settings VLDOx[2:0] VOUT (V) VLDOx[2:0] VOUT (V) 000 1.20 100 2.70 001 1.50 101 2.85 010 1.80 110 3.10 011 2.50 111 3.30 Signed-off-by: Axel Lin Signed-off-by: Mark Brown diff --git a/drivers/regulator/tps6586x-regulator.c b/drivers/regulator/tps6586x-regulator.c index 29b615c..cfc1f16 100644 --- a/drivers/regulator/tps6586x-regulator.c +++ b/drivers/regulator/tps6586x-regulator.c @@ -79,6 +79,11 @@ static int tps6586x_ldo_list_voltage(struct regulator_dev *rdev, unsigned selector) { struct tps6586x_regulator *info = rdev_get_drvdata(rdev); + int rid = rdev_get_id(rdev); + + /* LDO0 has minimal voltage 1.2V rather than 1.25V */ + if ((rid == TPS6586X_ID_LDO_0) && (selector == 0)) + return (info->voltages[0] - 50) * 1000; return info->voltages[selector] * 1000; } -- cgit v0.10.2 From f3d229c68bb47170f04f81e51c9ed5d4286cebdb Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Wed, 7 Mar 2012 23:45:44 +0000 Subject: netfilter: xt_LOG: don't use xchg() for simple assignment At least on ia64 the (bogus) use of xchg() here results in the compiler warning about an unused expression result. As only an assignment is intended here, convert it to such. Signed-off-by: Jan Beulich Acked-by: Eric Dumazet Signed-off-by: Pablo Neira Ayuso diff --git a/include/net/netfilter/xt_log.h b/include/net/netfilter/xt_log.h index 7e1544e..9d9756c 100644 --- a/include/net/netfilter/xt_log.h +++ b/include/net/netfilter/xt_log.h @@ -47,7 +47,7 @@ static void sb_close(struct sbuff *m) if (likely(m != &emergency)) kfree(m); else { - xchg(&emergency_ptr, m); + emergency_ptr = m; local_bh_enable(); } } -- cgit v0.10.2 From 09bf14b901f2c1908b6a72fe934457acdd1fa430 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 15 Mar 2012 15:53:05 +0800 Subject: regulator: Fix set and get current limit for wm831x_buckv WM831X_DC1_HC_THR_MASK is 0x0070. We need to do proper shift for setting and getting current limit. Signed-off-by: Axel Lin Signed-off-by: Mark Brown diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c index 4904a40..3044001 100644 --- a/drivers/regulator/wm831x-dcdc.c +++ b/drivers/regulator/wm831x-dcdc.c @@ -386,7 +386,8 @@ static int wm831x_buckv_set_current_limit(struct regulator_dev *rdev, if (i == ARRAY_SIZE(wm831x_dcdc_ilim)) return -EINVAL; - return wm831x_set_bits(wm831x, reg, WM831X_DC1_HC_THR_MASK, i); + return wm831x_set_bits(wm831x, reg, WM831X_DC1_HC_THR_MASK, + i << WM831X_DC1_HC_THR_SHIFT); } static int wm831x_buckv_get_current_limit(struct regulator_dev *rdev) @@ -400,7 +401,8 @@ static int wm831x_buckv_get_current_limit(struct regulator_dev *rdev) if (val < 0) return val; - return wm831x_dcdc_ilim[val & WM831X_DC1_HC_THR_MASK]; + val = (val & WM831X_DC1_HC_THR_MASK) >> WM831X_DC1_HC_THR_SHIFT; + return wm831x_dcdc_ilim[val]; } static struct regulator_ops wm831x_buckv_ops = { -- cgit v0.10.2 From 5777d9b34aec841429ddade56403b3f53a821a1d Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 15 Mar 2012 12:49:09 +0800 Subject: regulator: Fix unbalanced lock/unlock in mc13892_regulator_probe error path We do not hold a lock while registering regulator, thus should not call unlock if regulator_register fails. Signed-off-by: Axel Lin Signed-off-by: Mark Brown diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c index e8cfc99..845aa22 100644 --- a/drivers/regulator/mc13892-regulator.c +++ b/drivers/regulator/mc13892-regulator.c @@ -552,7 +552,7 @@ static int __devinit mc13892_regulator_probe(struct platform_device *pdev) mc13xxx_lock(mc13892); ret = mc13xxx_reg_read(mc13892, MC13892_REVISION, &val); if (ret) - goto err_free; + goto err_unlock; /* enable switch auto mode */ if ((val & 0x0000FFFF) == 0x45d0) { @@ -562,7 +562,7 @@ static int __devinit mc13892_regulator_probe(struct platform_device *pdev) MC13892_SWITCHERS4_SW1MODE_AUTO | MC13892_SWITCHERS4_SW2MODE_AUTO); if (ret) - goto err_free; + goto err_unlock; ret = mc13xxx_reg_rmw(mc13892, MC13892_SWITCHERS5, MC13892_SWITCHERS5_SW3MODE_M | @@ -570,7 +570,7 @@ static int __devinit mc13892_regulator_probe(struct platform_device *pdev) MC13892_SWITCHERS5_SW3MODE_AUTO | MC13892_SWITCHERS5_SW4MODE_AUTO); if (ret) - goto err_free; + goto err_unlock; } mc13xxx_unlock(mc13892); @@ -612,10 +612,10 @@ static int __devinit mc13892_regulator_probe(struct platform_device *pdev) err: while (--i >= 0) regulator_unregister(priv->regulators[i]); + return ret; -err_free: +err_unlock: mc13xxx_unlock(mc13892); - return ret; } -- cgit v0.10.2 From eb4168158f79237498e4d3ddcef6e9436db15a4a Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 23 Mar 2012 06:25:05 +0800 Subject: regulator: Fix restoring pmic.dcdcx_hib_mode settings in wm8350_dcdc_set_suspend_enable What we want is to restore wm8350->pmic.dcdcx_hib_mode settings to WM8350_DCDCx_LOW_POWER registers. Current code also clears all other bits of WM8350_DCDCx_LOW_POWER registers which is wrong. Signed-off-by: Axel Lin Signed-off-by: Mark Brown diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c index ab1e183..1c54821 100644 --- a/drivers/regulator/wm8350-regulator.c +++ b/drivers/regulator/wm8350-regulator.c @@ -495,25 +495,25 @@ static int wm8350_dcdc_set_suspend_enable(struct regulator_dev *rdev) val = wm8350_reg_read(wm8350, WM8350_DCDC1_LOW_POWER) & ~WM8350_DCDC_HIB_MODE_MASK; wm8350_reg_write(wm8350, WM8350_DCDC1_LOW_POWER, - wm8350->pmic.dcdc1_hib_mode); + val | wm8350->pmic.dcdc1_hib_mode); break; case WM8350_DCDC_3: val = wm8350_reg_read(wm8350, WM8350_DCDC3_LOW_POWER) & ~WM8350_DCDC_HIB_MODE_MASK; wm8350_reg_write(wm8350, WM8350_DCDC3_LOW_POWER, - wm8350->pmic.dcdc3_hib_mode); + val | wm8350->pmic.dcdc3_hib_mode); break; case WM8350_DCDC_4: val = wm8350_reg_read(wm8350, WM8350_DCDC4_LOW_POWER) & ~WM8350_DCDC_HIB_MODE_MASK; wm8350_reg_write(wm8350, WM8350_DCDC4_LOW_POWER, - wm8350->pmic.dcdc4_hib_mode); + val | wm8350->pmic.dcdc4_hib_mode); break; case WM8350_DCDC_6: val = wm8350_reg_read(wm8350, WM8350_DCDC6_LOW_POWER) & ~WM8350_DCDC_HIB_MODE_MASK; wm8350_reg_write(wm8350, WM8350_DCDC6_LOW_POWER, - wm8350->pmic.dcdc6_hib_mode); + val | wm8350->pmic.dcdc6_hib_mode); break; case WM8350_DCDC_2: case WM8350_DCDC_5: -- cgit v0.10.2 From 9300928692f835f76f5604b3b51c3085977edf68 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 23 Mar 2012 06:27:10 +0800 Subject: regulator: Do proper shift to set correct bit for DC[2|5]_HIB_MODE setting DC[2|5]_HIB_MODE is BIT 12 of DCDC[2|5] Control register. WM8350_DC2_HIB_MODE_ACTIVE/WM8350_DC2_HIB_MODE_DISABLE are defined as 1/0. Thus we need to left shift WM8350_DC2_HIB_MODE_SHIFT bits. Signed-off-by: Axel Lin Signed-off-by: Mark Brown diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c index 1c54821..ff34654 100644 --- a/drivers/regulator/wm8350-regulator.c +++ b/drivers/regulator/wm8350-regulator.c @@ -575,13 +575,13 @@ static int wm8350_dcdc25_set_suspend_enable(struct regulator_dev *rdev) val = wm8350_reg_read(wm8350, WM8350_DCDC2_CONTROL) & ~WM8350_DC2_HIB_MODE_MASK; wm8350_reg_write(wm8350, WM8350_DCDC2_CONTROL, val | - WM8350_DC2_HIB_MODE_ACTIVE); + (WM8350_DC2_HIB_MODE_ACTIVE << WM8350_DC2_HIB_MODE_SHIFT)); break; case WM8350_DCDC_5: val = wm8350_reg_read(wm8350, WM8350_DCDC5_CONTROL) - & ~WM8350_DC2_HIB_MODE_MASK; + & ~WM8350_DC5_HIB_MODE_MASK; wm8350_reg_write(wm8350, WM8350_DCDC5_CONTROL, val | - WM8350_DC5_HIB_MODE_ACTIVE); + (WM8350_DC5_HIB_MODE_ACTIVE << WM8350_DC5_HIB_MODE_SHIFT)); break; default: return -EINVAL; @@ -600,13 +600,13 @@ static int wm8350_dcdc25_set_suspend_disable(struct regulator_dev *rdev) val = wm8350_reg_read(wm8350, WM8350_DCDC2_CONTROL) & ~WM8350_DC2_HIB_MODE_MASK; wm8350_reg_write(wm8350, WM8350_DCDC2_CONTROL, val | - WM8350_DC2_HIB_MODE_DISABLE); + (WM8350_DC2_HIB_MODE_DISABLE << WM8350_DC2_HIB_MODE_SHIFT)); break; case WM8350_DCDC_5: val = wm8350_reg_read(wm8350, WM8350_DCDC5_CONTROL) - & ~WM8350_DC2_HIB_MODE_MASK; + & ~WM8350_DC5_HIB_MODE_MASK; wm8350_reg_write(wm8350, WM8350_DCDC5_CONTROL, val | - WM8350_DC2_HIB_MODE_DISABLE); + (WM8350_DC5_HIB_MODE_DISABLE << WM8350_DC5_HIB_MODE_SHIFT)); break; default: return -EINVAL; -- cgit v0.10.2 From 5276e16bb6f35412583518d6f04651dd9dc114be Mon Sep 17 00:00:00 2001 From: Jan Engelhardt Date: Sat, 14 Jan 2012 17:38:55 +0100 Subject: netfilter: ipset: avoid use of kernel-only types When using the xt_set.h header in userspace, one will get these gcc reports: ipset/ip_set.h:184:1: error: unknown type name "u16" In file included from libxt_SET.c:21:0: netfilter/xt_set.h:61:2: error: unknown type name "u32" netfilter/xt_set.h:62:2: error: unknown type name "u32" Signed-off-by: Jan Engelhardt Signed-off-by: Jozsef Kadlecsik Signed-off-by: Pablo Neira Ayuso diff --git a/include/linux/netfilter/xt_set.h b/include/linux/netfilter/xt_set.h index c0405ac..e3a9978 100644 --- a/include/linux/netfilter/xt_set.h +++ b/include/linux/netfilter/xt_set.h @@ -58,8 +58,8 @@ struct xt_set_info_target_v1 { struct xt_set_info_target_v2 { struct xt_set_info add_set; struct xt_set_info del_set; - u32 flags; - u32 timeout; + __u32 flags; + __u32 timeout; }; #endif /*_XT_SET_H*/ -- cgit v0.10.2 From 883a649b737cdbe3ede7e50f3f939fd706ed5c4e Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Tue, 13 Mar 2012 16:11:27 +0100 Subject: iwlegacy: do not nulify il->vif on reset This il->vif is dereferenced in different part of iwlegacy code, so do not nullify it. This should fix random crashes observed in companion with microcode errors i.e. crash in il3945_config_ap(). Additionally this should address also WARNING: at drivers/net/wireless/iwlegacy/common.c:4656 il_mac_remove_interface at least one of the possible reasons of that warning. Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Gruszka Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c index 0c12093..faec404 100644 --- a/drivers/net/wireless/iwlegacy/3945-mac.c +++ b/drivers/net/wireless/iwlegacy/3945-mac.c @@ -2673,8 +2673,6 @@ il3945_bg_restart(struct work_struct *data) if (test_and_clear_bit(S_FW_ERROR, &il->status)) { mutex_lock(&il->mutex); - /* FIXME: vif can be dereferenced */ - il->vif = NULL; il->is_open = 0; mutex_unlock(&il->mutex); il3945_down(il); diff --git a/drivers/net/wireless/iwlegacy/4965-mac.c b/drivers/net/wireless/iwlegacy/4965-mac.c index 7b54dbb..b88bb27 100644 --- a/drivers/net/wireless/iwlegacy/4965-mac.c +++ b/drivers/net/wireless/iwlegacy/4965-mac.c @@ -5651,8 +5651,6 @@ il4965_bg_restart(struct work_struct *data) if (test_and_clear_bit(S_FW_ERROR, &il->status)) { mutex_lock(&il->mutex); - /* FIXME: do we dereference vif without mutex locked ? */ - il->vif = NULL; il->is_open = 0; __il4965_down(il); diff --git a/drivers/net/wireless/iwlegacy/common.c b/drivers/net/wireless/iwlegacy/common.c index e5ac047..6a692a5 100644 --- a/drivers/net/wireless/iwlegacy/common.c +++ b/drivers/net/wireless/iwlegacy/common.c @@ -4508,6 +4508,7 @@ il_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { struct il_priv *il = hw->priv; int err; + bool reset; mutex_lock(&il->mutex); D_MAC80211("enter: type %d, addr %pM\n", vif->type, vif->addr); @@ -4518,7 +4519,12 @@ il_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) goto out; } - if (il->vif) { + /* + * We do not support multiple virtual interfaces, but on hardware reset + * we have to add the same interface again. + */ + reset = (il->vif == vif); + if (il->vif && !reset) { err = -EOPNOTSUPP; goto out; } @@ -4528,8 +4534,11 @@ il_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) err = il_set_mode(il); if (err) { - il->vif = NULL; - il->iw_mode = NL80211_IFTYPE_STATION; + IL_WARN("Fail to set mode %d\n", vif->type); + if (!reset) { + il->vif = NULL; + il->iw_mode = NL80211_IFTYPE_STATION; + } } out: -- cgit v0.10.2 From 2ee0a07028d2cde6e131b73f029dae2b93c50f3a Mon Sep 17 00:00:00 2001 From: Rajkumar Manoharan Date: Thu, 15 Mar 2012 06:08:04 +0530 Subject: ath9k: fix max noise floor threshold Currently the maximum noise floor limit is set as too high (-60dB). The assumption of having a higher threshold limit is that it would help de-sensitize the receiver (reduce phy errors) from continuous interference. But when we have a bursty interference where there are collisions and then free air time and if the receiver is desensitized too much, it will miss the normal packets too. Lets make use of chips specific min, nom and max limits always. This patch helps to improve the connection stability in congested networks. Cc: stable@vger.kernel.org Cc: Paul Stewart Tested-by: Gary Morain Signed-off-by: Madhan Jaganathan Signed-off-by: Rajkumar Manoharan Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/calib.c b/drivers/net/wireless/ath/ath9k/calib.c index 2f4b48e..e5cceb0 100644 --- a/drivers/net/wireless/ath/ath9k/calib.c +++ b/drivers/net/wireless/ath/ath9k/calib.c @@ -20,7 +20,6 @@ /* Common calibration code */ -#define ATH9K_NF_TOO_HIGH -60 static int16_t ath9k_hw_get_nf_hist_mid(int16_t *nfCalBuffer) { @@ -346,10 +345,10 @@ static void ath9k_hw_nf_sanitize(struct ath_hw *ah, s16 *nf) "NF calibrated [%s] [chain %d] is %d\n", (i >= 3 ? "ext" : "ctl"), i % 3, nf[i]); - if (nf[i] > ATH9K_NF_TOO_HIGH) { + if (nf[i] > limit->max) { ath_dbg(common, CALIBRATE, "NF[%d] (%d) > MAX (%d), correcting to MAX\n", - i, nf[i], ATH9K_NF_TOO_HIGH); + i, nf[i], limit->max); nf[i] = limit->max; } else if (nf[i] < limit->min) { ath_dbg(common, CALIBRATE, -- cgit v0.10.2 From e92109be7a6a04808c3ed586475ba1e5ea56ecbd Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Thu, 15 Mar 2012 11:42:49 +0100 Subject: iwlegacy: fix BSSID setting Current commit 0775f9f90cdaf40fbf69b3192b3dddb2b3436f45 "mac80211: remove spurious BSSID change flag" exposed bug on iwlegacy, that we do not set BSSID address correctly and then device was not able to receive frames after successful associate. On the way fix scan canceling comment. Apparently ->post_associate() do cancel scan itself, but scan cancel on BSS_CHANGED_BSSID is needed. I'm not sure why, but when I removed it, I had frequent auth failures: wlan4: send auth to 54:e6:fc:98:63:fe (try 1/3) wlan4: send auth to 54:e6:fc:98:63:fe (try 2/3) wlan4: send auth to 54:e6:fc:98:63:fe (try 3/3) wlan4: authentication with 54:e6:fc:98:63:fe timed out Signed-off-by: Stanislaw Gruszka Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/iwlegacy/common.c b/drivers/net/wireless/iwlegacy/common.c index 6a692a5..eaf24945 100644 --- a/drivers/net/wireless/iwlegacy/common.c +++ b/drivers/net/wireless/iwlegacy/common.c @@ -5288,9 +5288,9 @@ il_mac_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, D_MAC80211("BSSID %pM\n", bss_conf->bssid); /* - * If there is currently a HW scan going on in the - * background then we need to cancel it else the RXON - * below/in post_associate will fail. + * If there is currently a HW scan going on in the background, + * then we need to cancel it, otherwise sometimes we are not + * able to authenticate (FIXME: why ?) */ if (il_scan_cancel_timeout(il, 100)) { D_MAC80211("leave - scan abort failed\n"); @@ -5299,14 +5299,10 @@ il_mac_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, } /* mac80211 only sets assoc when in STATION mode */ - if (vif->type == NL80211_IFTYPE_ADHOC || bss_conf->assoc) { - memcpy(il->staging.bssid_addr, bss_conf->bssid, - ETH_ALEN); + memcpy(il->staging.bssid_addr, bss_conf->bssid, ETH_ALEN); - /* currently needed in a few places */ - memcpy(il->bssid, bss_conf->bssid, ETH_ALEN); - } else - il->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; + /* FIXME: currently needed in a few places */ + memcpy(il->bssid, bss_conf->bssid, ETH_ALEN); } /* -- cgit v0.10.2 From 66266b3ab4871958ed6a1e43f502cadaf3becfc8 Mon Sep 17 00:00:00 2001 From: "John W. Linville" Date: Thu, 15 Mar 2012 13:25:41 -0400 Subject: cfg80211: allow CFG80211_SIGNAL_TYPE_UNSPEC in station_info The station_info struct had demanded dBm signal values, but the cfg80211 wireless extensions implementation was also accepting "unspecified" (i.e. RSSI) unit values while the nl80211 code was completely unaware of them. Resolve this by formally allowing the "unspecified" units while making nl80211 ignore them. Signed-off-by: John W. Linville Reviewed-by: Johannes Berg diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 69b7ad3..5ccac72 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -619,8 +619,10 @@ struct sta_bss_parameters { * @llid: mesh local link id * @plid: mesh peer link id * @plink_state: mesh peer link state - * @signal: signal strength of last received packet in dBm - * @signal_avg: signal strength average in dBm + * @signal: the signal strength, type depends on the wiphy's signal_type + NOTE: For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_. + * @signal_avg: avg signal strength, type depends on the wiphy's signal_type + NOTE: For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_. * @txrate: current unicast bitrate from this station * @rxrate: current unicast bitrate to this station * @rx_packets: packets received from this station diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 4c1eb94..e49da27 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -2386,7 +2386,9 @@ nla_put_failure: } static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, - int flags, struct net_device *dev, + int flags, + struct cfg80211_registered_device *rdev, + struct net_device *dev, const u8 *mac_addr, struct station_info *sinfo) { void *hdr; @@ -2425,12 +2427,18 @@ static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, if (sinfo->filled & STATION_INFO_PLINK_STATE) NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE, sinfo->plink_state); - if (sinfo->filled & STATION_INFO_SIGNAL) - NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL, - sinfo->signal); - if (sinfo->filled & STATION_INFO_SIGNAL_AVG) - NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG, - sinfo->signal_avg); + switch (rdev->wiphy.signal_type) { + case CFG80211_SIGNAL_TYPE_MBM: + if (sinfo->filled & STATION_INFO_SIGNAL) + NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL, + sinfo->signal); + if (sinfo->filled & STATION_INFO_SIGNAL_AVG) + NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG, + sinfo->signal_avg); + break; + default: + break; + } if (sinfo->filled & STATION_INFO_TX_BITRATE) { if (!nl80211_put_sta_rate(msg, &sinfo->txrate, NL80211_STA_INFO_TX_BITRATE)) @@ -2523,7 +2531,7 @@ static int nl80211_dump_station(struct sk_buff *skb, if (nl80211_send_station(skb, NETLINK_CB(cb->skb).pid, cb->nlh->nlmsg_seq, NLM_F_MULTI, - netdev, mac_addr, + dev, netdev, mac_addr, &sinfo) < 0) goto out; @@ -2568,7 +2576,7 @@ static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) return -ENOMEM; if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, - dev, mac_addr, &sinfo) < 0) { + rdev, dev, mac_addr, &sinfo) < 0) { nlmsg_free(msg); return -ENOBUFS; } @@ -7596,7 +7604,8 @@ void nl80211_send_sta_event(struct cfg80211_registered_device *rdev, if (!msg) return; - if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) { + if (nl80211_send_station(msg, 0, 0, 0, + rdev, dev, mac_addr, sinfo) < 0) { nlmsg_free(msg); return; } -- cgit v0.10.2 From 195ca3b122c02cf21ce64f211d9474600da80e80 Mon Sep 17 00:00:00 2001 From: Rajkumar Manoharan Date: Thu, 15 Mar 2012 23:05:28 +0530 Subject: ath9k: reduce listen time period When we have downlink traffic alone and the station is going thru bgscan, the client is out of operating channel for around 1000ms which is too long. The mac80211 decides when to switch back to oper channel based on tx queue, bad latency and listen time. As the station does not have tx traffic, the bgscan can easily affect downlink throughput. By reducing the listen time, it helps the associated AP to retain the downstream rate. Cc: Paul Stewart Tested-by: Gary Morain Signed-off-by: Rajkumar Manoharan Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c index 60159f4..cb00645 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -680,7 +680,7 @@ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) hw->queues = 4; hw->max_rates = 4; hw->channel_change_time = 5000; - hw->max_listen_interval = 10; + hw->max_listen_interval = 1; hw->max_rate_tries = 10; hw->sta_data_size = sizeof(struct ath_node); hw->vif_data_size = sizeof(struct ath_vif); -- cgit v0.10.2 From b5447ff92b5169eab843a76d83e98d0cd7b7f5b6 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 15 Mar 2012 13:43:29 -0700 Subject: ath9k: fix a memory leak in ath_rx_tasklet() commit 0d95521ea7 (ath9k: use split rx buffers to get rid of order-1 skb allocations) added in memory leak in error path. sc->rx.frag should be cleared after the pskb_expand_head() call, or else we jump to requeue_drop_frag and leak an skb. Signed-off-by: Eric Dumazet Cc: Jouni Malinen Cc: Felix Fietkau Cc: John W. Linville Cc: Trond Wuellner Cc: Grant Grundler Cc: Paul Stewart Cc: David Miller Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index f4ae3ba..1c4583c 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -1913,13 +1913,13 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp) if (sc->rx.frag) { int space = skb->len - skb_tailroom(hdr_skb); - sc->rx.frag = NULL; - if (pskb_expand_head(hdr_skb, 0, space, GFP_ATOMIC) < 0) { dev_kfree_skb(skb); goto requeue_drop_frag; } + sc->rx.frag = NULL; + skb_copy_from_linear_data(skb, skb_put(hdr_skb, skb->len), skb->len); dev_kfree_skb_any(skb); -- cgit v0.10.2 From b603c03e9534b9bec19ebf8c42bf217fd875ee65 Mon Sep 17 00:00:00 2001 From: Eliad Peller Date: Sun, 18 Mar 2012 14:08:50 +0200 Subject: mac80211: remove outdated comment The on-oper-channel optimization was reverted, so remove the outdated comment as well. Signed-off-by: Eliad Peller Signed-off-by: John W. Linville diff --git a/net/mac80211/main.c b/net/mac80211/main.c index b581a24..1633648 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -102,9 +102,6 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) might_sleep(); - /* If this off-channel logic ever changes, ieee80211_on_oper_channel - * may need to change as well. - */ offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; if (local->scan_channel) { chan = local->scan_channel; -- cgit v0.10.2 From b9fc106108f3faf2e4430c3bd5721677c3d6a4a1 Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Mon, 19 Mar 2012 09:39:45 +0100 Subject: rt2x00: rt2800usb: schedule txdone work on timeout This is fix for my current commit ed61e2b02027935520d1be884fac0b2ffce8379a "rt2x00: rt2800usb: rework txdone code" We should schedule txdone work on timeout, otherwise if newer get tx status from hardware, we will never report tx status to mac80211 and eventually never wakeup tx queue. Reported-by: Jakub Kicinski Signed-off-by: Stanislaw Gruszka Acked-by: Gertjan van Wingerde Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c index cd490ab..f97f846 100644 --- a/drivers/net/wireless/rt2x00/rt2800usb.c +++ b/drivers/net/wireless/rt2x00/rt2800usb.c @@ -163,7 +163,13 @@ static bool rt2800usb_tx_sta_fifo_read_completed(struct rt2x00_dev *rt2x00dev, /* Reschedule urb to read TX status again instantly */ return true; - } else if (rt2800usb_txstatus_pending(rt2x00dev)) { + } + + /* Check if there is any entry that timedout waiting on TX status */ + if (rt2800usb_txstatus_timeout(rt2x00dev)) + queue_work(rt2x00dev->workqueue, &rt2x00dev->txdone_work); + + if (rt2800usb_txstatus_pending(rt2x00dev)) { /* Read register after 250 us */ hrtimer_start(&rt2x00dev->txstatus_timer, ktime_set(0, 250000), HRTIMER_MODE_REL); -- cgit v0.10.2 From 4e808a38fdcaeeeddbc05942623279ebe7c02373 Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Mon, 19 Mar 2012 15:59:41 +0100 Subject: rt2x00: rt2800usb: fix status register reread logic Another good catch from Jakub Kicinski. This patch fixes my recent commit: ed61e2b02027935520d1be884fac0b2ffce8379a "rt2x00: rt2800usb: rework txdone code" We should reread status register only when nobody else start already reading status i.e. test_and_set_bit(TX_STATUS_READING, flags) return 0. Reported-by: Jakub Kicinski Signed-off-by: Stanislaw Gruszka Acked-by: Gertjan van Wingerde Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c index f97f846..001735f 100644 --- a/drivers/net/wireless/rt2x00/rt2800usb.c +++ b/drivers/net/wireless/rt2x00/rt2800usb.c @@ -184,7 +184,7 @@ stop_reading: * here again if status reading is needed. */ if (rt2800usb_txstatus_pending(rt2x00dev) && - test_and_set_bit(TX_STATUS_READING, &rt2x00dev->flags)) + !test_and_set_bit(TX_STATUS_READING, &rt2x00dev->flags)) return true; else return false; -- cgit v0.10.2 From d72308bff5c2fa207949a5925b020bce74495e33 Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Mon, 19 Mar 2012 16:00:26 +0100 Subject: mac80211: fix possible tid_rx->reorder_timer use after free Is possible that we will arm the tid_rx->reorder_timer after del_timer_sync() in ___ieee80211_stop_rx_ba_session(). We need to stop timer after RCU grace period finish, so move it to ieee80211_free_tid_rx(). Timer will not be armed again, as rcu_dereference(sta->ampdu_mlme.tid_rx[tid]) will return NULL. Debug object detected problem with the following warning: ODEBUG: free active (active state 0) object type: timer_list hint: sta_rx_agg_reorder_timer_expired+0x0/0xf0 [mac80211] Bug report (with all warning messages): https://bugzilla.redhat.com/show_bug.cgi?id=804007 Reported-by: "jan p. springer" Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Gruszka Signed-off-by: John W. Linville diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c index 1068f66..64d3ce5 100644 --- a/net/mac80211/agg-rx.c +++ b/net/mac80211/agg-rx.c @@ -49,6 +49,8 @@ static void ieee80211_free_tid_rx(struct rcu_head *h) container_of(h, struct tid_ampdu_rx, rcu_head); int i; + del_timer_sync(&tid_rx->reorder_timer); + for (i = 0; i < tid_rx->buf_size; i++) dev_kfree_skb(tid_rx->reorder_buf[i]); kfree(tid_rx->reorder_buf); @@ -91,7 +93,6 @@ void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, tid, WLAN_BACK_RECIPIENT, reason); del_timer_sync(&tid_rx->session_timer); - del_timer_sync(&tid_rx->reorder_timer); call_rcu(&tid_rx->rcu_head, ieee80211_free_tid_rx); } -- cgit v0.10.2 From 46470e5bb03c5aa685160dbaa45c013fb3997788 Mon Sep 17 00:00:00 2001 From: Bob Copeland Date: Tue, 20 Mar 2012 10:48:40 -0400 Subject: ath5k: drop self from MAINTAINERS I simply don't have any hobby hacking time after family time and non-kernel-related job time, so I resume status as part-time mailing list lurker. Signed-off-by: Bob Copeland Signed-off-by: John W. Linville diff --git a/MAINTAINERS b/MAINTAINERS index 92f9924..0ddc77fe 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1247,7 +1247,6 @@ ATHEROS ATH5K WIRELESS DRIVER M: Jiri Slaby M: Nick Kossifidis M: "Luis R. Rodriguez" -M: Bob Copeland L: linux-wireless@vger.kernel.org L: ath5k-devel@lists.ath5k.org W: http://wireless.kernel.org/en/users/Drivers/ath5k -- cgit v0.10.2 From 643c61e119459e9d750087b7b34be94491efebf9 Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Mon, 26 Mar 2012 09:59:48 -0500 Subject: rtlwifi: rtl8192ce: rtl8192cu: rtl8192de: Fix low-gain setting when scanning In https://bugzilla.redhat.com/show_bug.cgi?id=770207, slowdowns of driver rtl8192ce are reported. One fix (commit a9b89e2) has already been applied, and it helped, but the maximum RX speed would still drop to 1 Mbps. As in the previous fix, the initial gain was determined to be the problem; however, the problem arises from a setting of the gain when scans are started. Driver rtl8192de also has the same code structure - this one is fixed as well. Reported-and-Tested-by: Ivan Pesin Signed-off-by: Larry Finger Cc: Stable Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c b/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c index 1eec3a0..4c01624 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c +++ b/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c @@ -1893,7 +1893,7 @@ void rtl92c_phy_set_io(struct ieee80211_hw *hw) break; case IO_CMD_PAUSE_DM_BY_SCAN: rtlphy->initgain_backup.xaagccore1 = dm_digtable.cur_igvalue; - dm_digtable.cur_igvalue = 0x17; + dm_digtable.cur_igvalue = 0x37; rtl92c_dm_write_dig(hw); break; default: diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/phy.c b/drivers/net/wireless/rtlwifi/rtl8192de/phy.c index 34591eeb..28fc5fb 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192de/phy.c +++ b/drivers/net/wireless/rtlwifi/rtl8192de/phy.c @@ -3077,7 +3077,7 @@ static void rtl92d_phy_set_io(struct ieee80211_hw *hw) break; case IO_CMD_PAUSE_DM_BY_SCAN: rtlphy->initgain_backup.xaagccore1 = de_digtable.cur_igvalue; - de_digtable.cur_igvalue = 0x17; + de_digtable.cur_igvalue = 0x37; rtl92d_dm_write_dig(hw); break; default: -- cgit v0.10.2 From f2791d733a2f06997b573d1a3cfde21e6f529826 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Mon, 26 Mar 2012 22:46:52 +0200 Subject: PM / Runtime: don't forget to wake up waitqueue on failure This patch (as1535) fixes a bug in the runtime PM core. When a runtime suspend attempt completes, whether successfully or not, the device's power.wait_queue is supposed to be signalled. But this doesn't happen in the failure pathway of rpm_suspend() when another autosuspend attempt is rescheduled. As a result, a task can get stuck indefinitely on the wait queue (I have seen this happen in testing). The patch fixes the problem by moving the wake_up_all() call up near the start of the failure code. Signed-off-by: Alan Stern CC: Signed-off-by: Rafael J. Wysocki diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c index 541f821..bd0f394 100644 --- a/drivers/base/power/runtime.c +++ b/drivers/base/power/runtime.c @@ -532,6 +532,8 @@ static int rpm_suspend(struct device *dev, int rpmflags) dev->power.suspend_time = ktime_set(0, 0); dev->power.max_time_suspended_ns = -1; dev->power.deferred_resume = false; + wake_up_all(&dev->power.wait_queue); + if (retval == -EAGAIN || retval == -EBUSY) { dev->power.runtime_error = 0; @@ -547,7 +549,6 @@ static int rpm_suspend(struct device *dev, int rpmflags) } else { pm_runtime_cancel_pending(dev); } - wake_up_all(&dev->power.wait_queue); goto out; } -- cgit v0.10.2 From 22e7a424854b80f00bd5686b6539726b8ca95420 Mon Sep 17 00:00:00 2001 From: Marcel Holtmann Date: Tue, 27 Mar 2012 18:21:00 +0200 Subject: MAINTAINERS: update Bluetooth tree locations Make use of a shared tree setup to limit the confusions on which tree is current. Signed-off-by: Marcel Holtmann Signed-off-by: Gustavo Padovan diff --git a/MAINTAINERS b/MAINTAINERS index 0ddc77fe..6555183 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1517,8 +1517,8 @@ M: Gustavo Padovan M: Johan Hedberg L: linux-bluetooth@vger.kernel.org W: http://www.bluez.org/ -T: git git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth.git -T: git git://git.kernel.org/pub/scm/linux/kernel/git/jh/bluetooth.git +T: git git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth.git +T: git git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git S: Maintained F: drivers/bluetooth/ @@ -1528,8 +1528,8 @@ M: Gustavo Padovan M: Johan Hedberg L: linux-bluetooth@vger.kernel.org W: http://www.bluez.org/ -T: git git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth.git -T: git git://git.kernel.org/pub/scm/linux/kernel/git/jh/bluetooth.git +T: git git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth.git +T: git git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git S: Maintained F: net/bluetooth/ F: include/net/bluetooth/ -- cgit v0.10.2 From 52f5509fe8ccb607ff9b84ad618f244262336475 Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Tue, 20 Mar 2012 18:10:01 +0000 Subject: e1000: fix vlan processing regression This patch fixes a regression introduced by commit "e1000: do vlan cleanup (799d531)". Apparently some e1000 chips (not mine) are sensitive about the order of setting vlan filter and vlan stripping/inserting functionality. So this patch changes the order so it's the same as before vlan cleanup. Reported-by: Ben Greear Signed-off-by: Jiri Pirko Tested-by: Ben Greear Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c index 0e9aec8..bcba9cf 100644 --- a/drivers/net/ethernet/intel/e1000/e1000_main.c +++ b/drivers/net/ethernet/intel/e1000/e1000_main.c @@ -164,6 +164,8 @@ static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter, static bool e1000_vlan_used(struct e1000_adapter *adapter); static void e1000_vlan_mode(struct net_device *netdev, netdev_features_t features); +static void e1000_vlan_filter_on_off(struct e1000_adapter *adapter, + bool filter_on); static int e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid); static int e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid); static void e1000_restore_vlan(struct e1000_adapter *adapter); @@ -1214,7 +1216,7 @@ static int __devinit e1000_probe(struct pci_dev *pdev, if (err) goto err_register; - e1000_vlan_mode(netdev, netdev->features); + e1000_vlan_filter_on_off(adapter, false); /* print bus type/speed/width info */ e_info(probe, "(PCI%s:%dMHz:%d-bit) %pM\n", @@ -4770,6 +4772,22 @@ static bool e1000_vlan_used(struct e1000_adapter *adapter) return false; } +static void __e1000_vlan_mode(struct e1000_adapter *adapter, + netdev_features_t features) +{ + struct e1000_hw *hw = &adapter->hw; + u32 ctrl; + + ctrl = er32(CTRL); + if (features & NETIF_F_HW_VLAN_RX) { + /* enable VLAN tag insert/strip */ + ctrl |= E1000_CTRL_VME; + } else { + /* disable VLAN tag insert/strip */ + ctrl &= ~E1000_CTRL_VME; + } + ew32(CTRL, ctrl); +} static void e1000_vlan_filter_on_off(struct e1000_adapter *adapter, bool filter_on) { @@ -4779,6 +4797,7 @@ static void e1000_vlan_filter_on_off(struct e1000_adapter *adapter, if (!test_bit(__E1000_DOWN, &adapter->flags)) e1000_irq_disable(adapter); + __e1000_vlan_mode(adapter, adapter->netdev->features); if (filter_on) { /* enable VLAN receive filtering */ rctl = er32(RCTL); @@ -4799,24 +4818,14 @@ static void e1000_vlan_filter_on_off(struct e1000_adapter *adapter, } static void e1000_vlan_mode(struct net_device *netdev, - netdev_features_t features) + netdev_features_t features) { struct e1000_adapter *adapter = netdev_priv(netdev); - struct e1000_hw *hw = &adapter->hw; - u32 ctrl; if (!test_bit(__E1000_DOWN, &adapter->flags)) e1000_irq_disable(adapter); - ctrl = er32(CTRL); - if (features & NETIF_F_HW_VLAN_RX) { - /* enable VLAN tag insert/strip */ - ctrl |= E1000_CTRL_VME; - } else { - /* disable VLAN tag insert/strip */ - ctrl &= ~E1000_CTRL_VME; - } - ew32(CTRL, ctrl); + __e1000_vlan_mode(adapter, features); if (!test_bit(__E1000_DOWN, &adapter->flags)) e1000_irq_enable(adapter); -- cgit v0.10.2 From 4eee6a3a04e8bb53fbe7de0f64d0524d3fbe3f80 Mon Sep 17 00:00:00 2001 From: Phil Sutter Date: Mon, 26 Mar 2012 09:01:30 +0000 Subject: wimax: i2400m - prevent a possible kernel bug due to missing fw_name string This happened on a machine with a custom hotplug script calling nameif, probably due to slow firmware loading. At the time nameif uses ethtool to gather interface information, i2400m->fw_name is zero and so a null pointer dereference occurs from within i2400m_get_drvinfo(). Signed-off-by: Phil Sutter Signed-off-by: David S. Miller diff --git a/drivers/net/wimax/i2400m/netdev.c b/drivers/net/wimax/i2400m/netdev.c index 63e4b70..1d76ae8 100644 --- a/drivers/net/wimax/i2400m/netdev.c +++ b/drivers/net/wimax/i2400m/netdev.c @@ -597,7 +597,8 @@ static void i2400m_get_drvinfo(struct net_device *net_dev, struct i2400m *i2400m = net_dev_to_i2400m(net_dev); strncpy(info->driver, KBUILD_MODNAME, sizeof(info->driver) - 1); - strncpy(info->fw_version, i2400m->fw_name, sizeof(info->fw_version) - 1); + strncpy(info->fw_version, + i2400m->fw_name ? : "", sizeof(info->fw_version) - 1); if (net_dev->dev.parent) strncpy(info->bus_info, dev_name(net_dev->dev.parent), sizeof(info->bus_info) - 1); -- cgit v0.10.2 From b7440892802be38e6eeb0a17897deeb85476eff4 Mon Sep 17 00:00:00 2001 From: Phil Sutter Date: Mon, 26 Mar 2012 09:01:31 +0000 Subject: wimax: i2400m-usb - use a private struct ethtool_ops This way the USB variant of the driver uses usb_make_path in order to provide bus-info compatible to other USB drivers (like e.g. asix.c). Signed-off-by: Phil Sutter Signed-off-by: David S. Miller diff --git a/drivers/net/wimax/i2400m/usb.c b/drivers/net/wimax/i2400m/usb.c index 2c1b8b6..29b1e03 100644 --- a/drivers/net/wimax/i2400m/usb.c +++ b/drivers/net/wimax/i2400m/usb.c @@ -339,6 +339,23 @@ int i2400mu_bus_reset(struct i2400m *i2400m, enum i2400m_reset_type rt) return result; } +static void i2400mu_get_drvinfo(struct net_device *net_dev, + struct ethtool_drvinfo *info) +{ + struct i2400m *i2400m = net_dev_to_i2400m(net_dev); + struct i2400mu *i2400mu = container_of(i2400m, struct i2400mu, i2400m); + struct usb_device *udev = i2400mu->usb_dev; + + strncpy(info->driver, KBUILD_MODNAME, sizeof(info->driver) - 1); + strncpy(info->fw_version, + i2400m->fw_name ? : "", sizeof(info->fw_version) - 1); + usb_make_path(udev, info->bus_info, sizeof(info->bus_info)); +} + +static const struct ethtool_ops i2400mu_ethtool_ops = { + .get_drvinfo = i2400mu_get_drvinfo, + .get_link = ethtool_op_get_link, +}; static void i2400mu_netdev_setup(struct net_device *net_dev) @@ -347,6 +364,7 @@ void i2400mu_netdev_setup(struct net_device *net_dev) struct i2400mu *i2400mu = container_of(i2400m, struct i2400mu, i2400m); i2400mu_init(i2400mu); i2400m_netdev_setup(net_dev); + net_dev->ethtool_ops = &i2400mu_ethtool_ops; } -- cgit v0.10.2 From f0e81fecd4f83de7854262c8a6b3af19dfa99bf9 Mon Sep 17 00:00:00 2001 From: Nobuhiro Iwamatsu Date: Sun, 25 Mar 2012 18:59:51 +0000 Subject: net: sh_eth: Add support SH7734 Add define of SH7734 register and sh_eth_reset_hw_crc function. V3: Rebase net/HEAD. V2: Do not split line of #if defined. Signed-off-by: Nobuhiro Iwamatsu Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/renesas/Kconfig b/drivers/net/ethernet/renesas/Kconfig index 9755b49..3fb2355 100644 --- a/drivers/net/ethernet/renesas/Kconfig +++ b/drivers/net/ethernet/renesas/Kconfig @@ -7,7 +7,8 @@ config SH_ETH depends on SUPERH && \ (CPU_SUBTYPE_SH7710 || CPU_SUBTYPE_SH7712 || \ CPU_SUBTYPE_SH7763 || CPU_SUBTYPE_SH7619 || \ - CPU_SUBTYPE_SH7724 || CPU_SUBTYPE_SH7757) + CPU_SUBTYPE_SH7724 || CPU_SUBTYPE_SH7734 || \ + CPU_SUBTYPE_SH7757) select CRC32 select NET_CORE select MII @@ -16,4 +17,4 @@ config SH_ETH ---help--- Renesas SuperH Ethernet device driver. This driver supporting CPUs are: - - SH7710, SH7712, SH7763, SH7619, SH7724, and SH7757. + - SH7619, SH7710, SH7712, SH7724, SH7734, SH7763 and SH7757. diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index 8615961..8bdf070 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -1,8 +1,8 @@ /* * SuperH Ethernet device driver * - * Copyright (C) 2006-2008 Nobuhiro Iwamatsu - * Copyright (C) 2008-2009 Renesas Solutions Corp. + * Copyright (C) 2006-2012 Nobuhiro Iwamatsu + * Copyright (C) 2008-2012 Renesas Solutions Corp. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, @@ -38,6 +38,7 @@ #include #include #include +#include #include #include "sh_eth.h" @@ -279,8 +280,9 @@ static struct sh_eth_cpu_data *sh_eth_get_cpu_data(struct sh_eth_private *mdp) return &sh_eth_my_cpu_data; } -#elif defined(CONFIG_CPU_SUBTYPE_SH7763) +#elif defined(CONFIG_CPU_SUBTYPE_SH7734) || defined(CONFIG_CPU_SUBTYPE_SH7763) #define SH_ETH_HAS_TSU 1 +static void sh_eth_reset_hw_crc(struct net_device *ndev); static void sh_eth_chip_reset(struct net_device *ndev) { struct sh_eth_private *mdp = netdev_priv(ndev); @@ -314,6 +316,9 @@ static void sh_eth_reset(struct net_device *ndev) sh_eth_write(ndev, 0x0, RDFAR); sh_eth_write(ndev, 0x0, RDFXR); sh_eth_write(ndev, 0x0, RDFFR); + + /* Reset HW CRC register */ + sh_eth_reset_hw_crc(ndev); } static void sh_eth_set_duplex(struct net_device *ndev) @@ -370,8 +375,17 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = { .no_trimd = 1, .no_ade = 1, .tsu = 1, +#if defined(CONFIG_CPU_SUBTYPE_SH7734) + .hw_crc = 1, +#endif }; +static void sh_eth_reset_hw_crc(struct net_device *ndev) +{ + if (sh_eth_my_cpu_data.hw_crc) + sh_eth_write(ndev, 0x0, CSMR); +} + #elif defined(CONFIG_CPU_SUBTYPE_SH7619) #define SH_ETH_RESET_DEFAULT 1 static struct sh_eth_cpu_data sh_eth_my_cpu_data = { diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h index 57dc262..e66de18 100644 --- a/drivers/net/ethernet/renesas/sh_eth.h +++ b/drivers/net/ethernet/renesas/sh_eth.h @@ -1,8 +1,8 @@ /* * SuperH Ethernet device driver * - * Copyright (C) 2006-2008 Nobuhiro Iwamatsu - * Copyright (C) 2008-2011 Renesas Solutions Corp. + * Copyright (C) 2006-2012 Nobuhiro Iwamatsu + * Copyright (C) 2008-2012 Renesas Solutions Corp. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, @@ -98,6 +98,8 @@ enum { CEECR, MAFCR, RTRATE, + CSMR, + RMII_MII, /* TSU Absolute address */ ARSTR, @@ -172,6 +174,7 @@ static const u16 sh_eth_offset_gigabit[SH_ETH_MAX_REGISTER_OFFSET] = { [RMCR] = 0x0458, [RPADIR] = 0x0460, [FCFTR] = 0x0468, + [CSMR] = 0x04E4, [ECMR] = 0x0500, [ECSR] = 0x0510, @@ -200,6 +203,7 @@ static const u16 sh_eth_offset_gigabit[SH_ETH_MAX_REGISTER_OFFSET] = { [CERCR] = 0x0768, [CEECR] = 0x0770, [MAFCR] = 0x0778, + [RMII_MII] = 0x0790, [ARSTR] = 0x0000, [TSU_CTRST] = 0x0004, @@ -377,7 +381,7 @@ static const u16 sh_eth_offset_fast_sh3_sh2[SH_ETH_MAX_REGISTER_OFFSET] = { /* * Register's bits */ -#ifdef CONFIG_CPU_SUBTYPE_SH7763 +#if defined(CONFIG_CPU_SUBTYPE_SH7734) || defined(CONFIG_CPU_SUBTYPE_SH7763) /* EDSR */ enum EDSR_BIT { EDSR_ENT = 0x01, EDSR_ENR = 0x02, @@ -751,6 +755,7 @@ struct sh_eth_cpu_data { unsigned rpadir:1; /* E-DMAC have RPADIR */ unsigned no_trimd:1; /* E-DMAC DO NOT have TRIMD */ unsigned no_ade:1; /* E-DMAC DO NOT have ADE bit in EESR */ + unsigned hw_crc:1; /* E-DMAC have CSMR */ }; struct sh_eth_private { -- cgit v0.10.2 From a2daf263107ba3eb6db33931881731fa51c95045 Mon Sep 17 00:00:00 2001 From: Guan Xin Date: Mon, 26 Mar 2012 04:11:46 +0000 Subject: USB: Add Motorola Rokr E6 Id to the USBNet driver "zaurus" Added Vendor/Device Id of Motorola Rokr E6 (22b8:6027) so it can be recognized by the "zaurus" USBNet driver. Applies to Linux 3.2.13 and 2.6.39.4. Signed-off-by: Guan Xin Signed-off-by: David S. Miller diff --git a/drivers/net/usb/zaurus.c b/drivers/net/usb/zaurus.c index c3197ce..34db195 100644 --- a/drivers/net/usb/zaurus.c +++ b/drivers/net/usb/zaurus.c @@ -337,6 +337,11 @@ static const struct usb_device_id products [] = { .driver_info = ZAURUS_PXA_INFO, }, { + /* Motorola Rokr E6 */ + USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x6027, USB_CLASS_COMM, + USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), + .driver_info = (unsigned long) &bogus_mdlm_info, +}, { /* Motorola MOTOMAGX phones */ USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x6425, USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), -- cgit v0.10.2 From 452427b015b1b0cbbef7b6207908726837d39d57 Mon Sep 17 00:00:00 2001 From: Yuval Mintz Date: Mon, 26 Mar 2012 20:47:07 +0000 Subject: bnx2x: previous driver unload revised The flow in which the bnx2x driver starts after a previous driver has been terminated in an 'unclean' manner has several bugs and FW risks, which makes it possible for the driver to fail after boot-from-SAN or kdump. This patch contains a revised flow which performs a safer initialization, solving the possible crash scenarios. Notice this patch contains lines with over 80 characters, as it keeps print-strings in a single line. Signed-off-by: Yuval Mintz Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h index e37161f..2c9ee55 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h @@ -1173,6 +1173,13 @@ enum { }; +struct bnx2x_prev_path_list { + u8 bus; + u8 slot; + u8 path; + struct list_head list; +}; + struct bnx2x { /* Fields used in the tx and intr/napi performance paths * are grouped together in the beginning of the structure diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c index f1f3ca6..44556b7 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c @@ -1721,6 +1721,29 @@ static void bnx2x_squeeze_objects(struct bnx2x *bp) } while (0) #endif +bool bnx2x_test_firmware_version(struct bnx2x *bp, bool is_err) +{ + /* build FW version dword */ + u32 my_fw = (BCM_5710_FW_MAJOR_VERSION) + + (BCM_5710_FW_MINOR_VERSION << 8) + + (BCM_5710_FW_REVISION_VERSION << 16) + + (BCM_5710_FW_ENGINEERING_VERSION << 24); + + /* read loaded FW from chip */ + u32 loaded_fw = REG_RD(bp, XSEM_REG_PRAM); + + DP(NETIF_MSG_IFUP, "loaded fw %x, my fw %x\n", loaded_fw, my_fw); + + if (loaded_fw != my_fw) { + if (is_err) + BNX2X_ERR("bnx2x with FW %x was already loaded, which mismatches my %x FW. aborting\n", + loaded_fw, my_fw); + return false; + } + + return true; +} + /* must be called with rtnl_lock */ int bnx2x_nic_load(struct bnx2x *bp, int load_mode) { @@ -1815,23 +1838,8 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode) } if (load_code != FW_MSG_CODE_DRV_LOAD_COMMON_CHIP && load_code != FW_MSG_CODE_DRV_LOAD_COMMON) { - /* build FW version dword */ - u32 my_fw = (BCM_5710_FW_MAJOR_VERSION) + - (BCM_5710_FW_MINOR_VERSION << 8) + - (BCM_5710_FW_REVISION_VERSION << 16) + - (BCM_5710_FW_ENGINEERING_VERSION << 24); - - /* read loaded FW from chip */ - u32 loaded_fw = REG_RD(bp, XSEM_REG_PRAM); - - DP(BNX2X_MSG_SP, "loaded fw %x, my fw %x", - loaded_fw, my_fw); - /* abort nic load if version mismatch */ - if (my_fw != loaded_fw) { - BNX2X_ERR("bnx2x with FW %x already loaded, " - "which mismatches my %x FW. aborting", - loaded_fw, my_fw); + if (!bnx2x_test_firmware_version(bp, true)) { rc = -EBUSY; LOAD_ERROR_EXIT(bp, load_error2); } diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h index 8b16338..5c27454 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h @@ -431,6 +431,9 @@ void bnx2x_panic_dump(struct bnx2x *bp); void bnx2x_fw_dump_lvl(struct bnx2x *bp, const char *lvl); +/* validate currect fw is loaded */ +bool bnx2x_test_firmware_version(struct bnx2x *bp, bool is_err); + /* dev_close main block */ int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode); diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h index 5d71b7d..dbff591 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h @@ -1251,6 +1251,9 @@ struct drv_func_mb { #define DRV_MSG_CODE_LINK_STATUS_CHANGED 0x01000000 + #define DRV_MSG_CODE_INITIATE_FLR 0x02000000 + #define REQ_BC_VER_4_INITIATE_FLR 0x00070213 + #define BIOS_MSG_CODE_LIC_CHALLENGE 0xff010000 #define BIOS_MSG_CODE_LIC_RESPONSE 0xff020000 #define BIOS_MSG_CODE_VIRT_MAC_PRIM 0xff030000 diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index beb4cdb..efa557b 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -35,7 +35,6 @@ #define ETH_MAX_PACKET_SIZE 1500 #define ETH_MAX_JUMBO_PACKET_SIZE 9600 #define MDIO_ACCESS_TIMEOUT 1000 -#define BMAC_CONTROL_RX_ENABLE 2 #define WC_LANE_MAX 4 #define I2C_SWITCH_WIDTH 2 #define I2C_BSC0 0 diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h index 7ba557a..763535e 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h @@ -89,6 +89,8 @@ #define PFC_BRB_FULL_LB_XON_THRESHOLD 250 #define MAXVAL(a, b) (((a) > (b)) ? (a) : (b)) + +#define BMAC_CONTROL_RX_ENABLE 2 /***********************************************************/ /* Structs */ /***********************************************************/ diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index f7f9aa8..e077d25 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -52,6 +52,7 @@ #include #include #include +#include #include #include @@ -211,6 +212,10 @@ static DEFINE_PCI_DEVICE_TABLE(bnx2x_pci_tbl) = { MODULE_DEVICE_TABLE(pci, bnx2x_pci_tbl); +/* Global resources for unloading a previously loaded device */ +#define BNX2X_PREV_WAIT_NEEDED 1 +static DEFINE_SEMAPHORE(bnx2x_prev_sem); +static LIST_HEAD(bnx2x_prev_list); /**************************************************************************** * General service functions ****************************************************************************/ @@ -8812,109 +8817,371 @@ static inline void bnx2x_undi_int_disable(struct bnx2x *bp) bnx2x_undi_int_disable_e1h(bp); } -static void __devinit bnx2x_undi_unload(struct bnx2x *bp) +static void __devinit bnx2x_prev_unload_close_mac(struct bnx2x *bp) { - u32 val; + u32 val, base_addr, offset, mask, reset_reg; + bool mac_stopped = false; + u8 port = BP_PORT(bp); - /* possibly another driver is trying to reset the chip */ - bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_RESET); + reset_reg = REG_RD(bp, MISC_REG_RESET_REG_2); - /* check if doorbell queue is reset */ - if (REG_RD(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET) - & MISC_REGISTERS_RESET_REG_1_RST_DORQ) { + if (!CHIP_IS_E3(bp)) { + val = REG_RD(bp, NIG_REG_BMAC0_REGS_OUT_EN + port * 4); + mask = MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port; + if ((mask & reset_reg) && val) { + u32 wb_data[2]; + BNX2X_DEV_INFO("Disable bmac Rx\n"); + base_addr = BP_PORT(bp) ? NIG_REG_INGRESS_BMAC1_MEM + : NIG_REG_INGRESS_BMAC0_MEM; + offset = CHIP_IS_E2(bp) ? BIGMAC2_REGISTER_BMAC_CONTROL + : BIGMAC_REGISTER_BMAC_CONTROL; - /* - * Check if it is the UNDI driver + /* + * use rd/wr since we cannot use dmae. This is safe + * since MCP won't access the bus due to the request + * to unload, and no function on the path can be + * loaded at this time. + */ + wb_data[0] = REG_RD(bp, base_addr + offset); + wb_data[1] = REG_RD(bp, base_addr + offset + 0x4); + wb_data[0] &= ~BMAC_CONTROL_RX_ENABLE; + REG_WR(bp, base_addr + offset, wb_data[0]); + REG_WR(bp, base_addr + offset + 0x4, wb_data[1]); + + } + BNX2X_DEV_INFO("Disable emac Rx\n"); + REG_WR(bp, NIG_REG_NIG_EMAC0_EN + BP_PORT(bp)*4, 0); + + mac_stopped = true; + } else { + if (reset_reg & MISC_REGISTERS_RESET_REG_2_XMAC) { + BNX2X_DEV_INFO("Disable xmac Rx\n"); + base_addr = BP_PORT(bp) ? GRCBASE_XMAC1 : GRCBASE_XMAC0; + val = REG_RD(bp, base_addr + XMAC_REG_PFC_CTRL_HI); + REG_WR(bp, base_addr + XMAC_REG_PFC_CTRL_HI, + val & ~(1 << 1)); + REG_WR(bp, base_addr + XMAC_REG_PFC_CTRL_HI, + val | (1 << 1)); + REG_WR(bp, base_addr + XMAC_REG_CTRL, 0); + mac_stopped = true; + } + mask = MISC_REGISTERS_RESET_REG_2_UMAC0 << port; + if (mask & reset_reg) { + BNX2X_DEV_INFO("Disable umac Rx\n"); + base_addr = BP_PORT(bp) ? GRCBASE_UMAC1 : GRCBASE_UMAC0; + REG_WR(bp, base_addr + UMAC_REG_COMMAND_CONFIG, 0); + mac_stopped = true; + } + } + + if (mac_stopped) + msleep(20); + +} + +#define BNX2X_PREV_UNDI_PROD_ADDR(p) (BAR_TSTRORM_INTMEM + 0x1508 + ((p) << 4)) +#define BNX2X_PREV_UNDI_RCQ(val) ((val) & 0xffff) +#define BNX2X_PREV_UNDI_BD(val) ((val) >> 16 & 0xffff) +#define BNX2X_PREV_UNDI_PROD(rcq, bd) ((bd) << 16 | (rcq)) + +static void __devinit bnx2x_prev_unload_undi_inc(struct bnx2x *bp, u8 port, + u8 inc) +{ + u16 rcq, bd; + u32 tmp_reg = REG_RD(bp, BNX2X_PREV_UNDI_PROD_ADDR(port)); + + rcq = BNX2X_PREV_UNDI_RCQ(tmp_reg) + inc; + bd = BNX2X_PREV_UNDI_BD(tmp_reg) + inc; + + tmp_reg = BNX2X_PREV_UNDI_PROD(rcq, bd); + REG_WR(bp, BNX2X_PREV_UNDI_PROD_ADDR(port), tmp_reg); + + BNX2X_DEV_INFO("UNDI producer [%d] rings bd -> 0x%04x, rcq -> 0x%04x\n", + port, bd, rcq); +} + +static int __devinit bnx2x_prev_mcp_done(struct bnx2x *bp) +{ + u32 rc = bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE, 0); + if (!rc) { + BNX2X_ERR("MCP response failure, aborting\n"); + return -EBUSY; + } + + return 0; +} + +static bool __devinit bnx2x_prev_is_path_marked(struct bnx2x *bp) +{ + struct bnx2x_prev_path_list *tmp_list; + int rc = false; + + if (down_trylock(&bnx2x_prev_sem)) + return false; + + list_for_each_entry(tmp_list, &bnx2x_prev_list, list) { + if (PCI_SLOT(bp->pdev->devfn) == tmp_list->slot && + bp->pdev->bus->number == tmp_list->bus && + BP_PATH(bp) == tmp_list->path) { + rc = true; + BNX2X_DEV_INFO("Path %d was already cleaned from previous drivers\n", + BP_PATH(bp)); + break; + } + } + + up(&bnx2x_prev_sem); + + return rc; +} + +static int __devinit bnx2x_prev_mark_path(struct bnx2x *bp) +{ + struct bnx2x_prev_path_list *tmp_list; + int rc; + + tmp_list = (struct bnx2x_prev_path_list *) + kmalloc(sizeof(struct bnx2x_prev_path_list), GFP_KERNEL); + if (!tmp_list) { + BNX2X_ERR("Failed to allocate 'bnx2x_prev_path_list'\n"); + return -ENOMEM; + } + + tmp_list->bus = bp->pdev->bus->number; + tmp_list->slot = PCI_SLOT(bp->pdev->devfn); + tmp_list->path = BP_PATH(bp); + + rc = down_interruptible(&bnx2x_prev_sem); + if (rc) { + BNX2X_ERR("Received %d when tried to take lock\n", rc); + kfree(tmp_list); + } else { + BNX2X_DEV_INFO("Marked path [%d] - finished previous unload\n", + BP_PATH(bp)); + list_add(&tmp_list->list, &bnx2x_prev_list); + up(&bnx2x_prev_sem); + } + + return rc; +} + +static bool __devinit bnx2x_can_flr(struct bnx2x *bp) +{ + int pos; + u32 cap; + struct pci_dev *dev = bp->pdev; + + pos = pci_pcie_cap(dev); + if (!pos) + return false; + + pci_read_config_dword(dev, pos + PCI_EXP_DEVCAP, &cap); + if (!(cap & PCI_EXP_DEVCAP_FLR)) + return false; + + return true; +} + +static int __devinit bnx2x_do_flr(struct bnx2x *bp) +{ + int i, pos; + u16 status; + struct pci_dev *dev = bp->pdev; + + /* probe the capability first */ + if (bnx2x_can_flr(bp)) + return -ENOTTY; + + pos = pci_pcie_cap(dev); + if (!pos) + return -ENOTTY; + + /* Wait for Transaction Pending bit clean */ + for (i = 0; i < 4; i++) { + if (i) + msleep((1 << (i - 1)) * 100); + + pci_read_config_word(dev, pos + PCI_EXP_DEVSTA, &status); + if (!(status & PCI_EXP_DEVSTA_TRPND)) + goto clear; + } + + dev_err(&dev->dev, + "transaction is not cleared; proceeding with reset anyway\n"); + +clear: + if (bp->common.bc_ver < REQ_BC_VER_4_INITIATE_FLR) { + BNX2X_ERR("FLR not supported by BC_VER: 0x%x\n", + bp->common.bc_ver); + return -EINVAL; + } + + bnx2x_fw_command(bp, DRV_MSG_CODE_INITIATE_FLR, 0); + + return 0; +} + +static int __devinit bnx2x_prev_unload_uncommon(struct bnx2x *bp) +{ + int rc; + + BNX2X_DEV_INFO("Uncommon unload Flow\n"); + + /* Test if previous unload process was already finished for this path */ + if (bnx2x_prev_is_path_marked(bp)) + return bnx2x_prev_mcp_done(bp); + + /* If function has FLR capabilities, and existing FW version matches + * the one required, then FLR will be sufficient to clean any residue + * left by previous driver + */ + if (bnx2x_test_firmware_version(bp, false) && bnx2x_can_flr(bp)) + return bnx2x_do_flr(bp); + + /* Close the MCP request, return failure*/ + rc = bnx2x_prev_mcp_done(bp); + if (!rc) + rc = BNX2X_PREV_WAIT_NEEDED; + + return rc; +} + +static int __devinit bnx2x_prev_unload_common(struct bnx2x *bp) +{ + u32 reset_reg, tmp_reg = 0, rc; + /* It is possible a previous function received 'common' answer, + * but hasn't loaded yet, therefore creating a scenario of + * multiple functions receiving 'common' on the same path. + */ + BNX2X_DEV_INFO("Common unload Flow\n"); + + if (bnx2x_prev_is_path_marked(bp)) + return bnx2x_prev_mcp_done(bp); + + reset_reg = REG_RD(bp, MISC_REG_RESET_REG_1); + + /* Reset should be performed after BRB is emptied */ + if (reset_reg & MISC_REGISTERS_RESET_REG_1_RST_BRB1) { + u32 timer_count = 1000; + bool prev_undi = false; + + /* Close the MAC Rx to prevent BRB from filling up */ + bnx2x_prev_unload_close_mac(bp); + + /* Check if the UNDI driver was previously loaded * UNDI driver initializes CID offset for normal bell to 0x7 */ - val = REG_RD(bp, DORQ_REG_NORM_CID_OFST); - if (val == 0x7) { - u32 reset_code = DRV_MSG_CODE_UNLOAD_REQ_WOL_DIS; - /* save our pf_num */ - int orig_pf_num = bp->pf_num; - int port; - u32 swap_en, swap_val, value; - - /* clear the UNDI indication */ - REG_WR(bp, DORQ_REG_NORM_CID_OFST, 0); - - BNX2X_DEV_INFO("UNDI is active! reset device\n"); - - /* try unload UNDI on port 0 */ - bp->pf_num = 0; - bp->fw_seq = - (SHMEM_RD(bp, func_mb[bp->pf_num].drv_mb_header) & - DRV_MSG_SEQ_NUMBER_MASK); - reset_code = bnx2x_fw_command(bp, reset_code, 0); - - /* if UNDI is loaded on the other port */ - if (reset_code != FW_MSG_CODE_DRV_UNLOAD_COMMON) { - - /* send "DONE" for previous unload */ - bnx2x_fw_command(bp, - DRV_MSG_CODE_UNLOAD_DONE, 0); - - /* unload UNDI on port 1 */ - bp->pf_num = 1; - bp->fw_seq = - (SHMEM_RD(bp, func_mb[bp->pf_num].drv_mb_header) & - DRV_MSG_SEQ_NUMBER_MASK); - reset_code = DRV_MSG_CODE_UNLOAD_REQ_WOL_DIS; - - bnx2x_fw_command(bp, reset_code, 0); + reset_reg = REG_RD(bp, MISC_REG_RESET_REG_1); + if (reset_reg & MISC_REGISTERS_RESET_REG_1_RST_DORQ) { + tmp_reg = REG_RD(bp, DORQ_REG_NORM_CID_OFST); + if (tmp_reg == 0x7) { + BNX2X_DEV_INFO("UNDI previously loaded\n"); + prev_undi = true; + /* clear the UNDI indication */ + REG_WR(bp, DORQ_REG_NORM_CID_OFST, 0); } + } + /* wait until BRB is empty */ + tmp_reg = REG_RD(bp, BRB1_REG_NUM_OF_FULL_BLOCKS); + while (timer_count) { + u32 prev_brb = tmp_reg; - bnx2x_undi_int_disable(bp); - port = BP_PORT(bp); - - /* close input traffic and wait for it */ - /* Do not rcv packets to BRB */ - REG_WR(bp, (port ? NIG_REG_LLH1_BRB1_DRV_MASK : - NIG_REG_LLH0_BRB1_DRV_MASK), 0x0); - /* Do not direct rcv packets that are not for MCP to - * the BRB */ - REG_WR(bp, (port ? NIG_REG_LLH1_BRB1_NOT_MCP : - NIG_REG_LLH0_BRB1_NOT_MCP), 0x0); - /* clear AEU */ - REG_WR(bp, (port ? MISC_REG_AEU_MASK_ATTN_FUNC_1 : - MISC_REG_AEU_MASK_ATTN_FUNC_0), 0); - msleep(10); - - /* save NIG port swap info */ - swap_val = REG_RD(bp, NIG_REG_PORT_SWAP); - swap_en = REG_RD(bp, NIG_REG_STRAP_OVERRIDE); - /* reset device */ - REG_WR(bp, - GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_CLEAR, - 0xd3ffffff); - - value = 0x1400; - if (CHIP_IS_E3(bp)) { - value |= MISC_REGISTERS_RESET_REG_2_MSTAT0; - value |= MISC_REGISTERS_RESET_REG_2_MSTAT1; - } + tmp_reg = REG_RD(bp, BRB1_REG_NUM_OF_FULL_BLOCKS); + if (!tmp_reg) + break; - REG_WR(bp, - GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR, - value); + BNX2X_DEV_INFO("BRB still has 0x%08x\n", tmp_reg); - /* take the NIG out of reset and restore swap values */ - REG_WR(bp, - GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET, - MISC_REGISTERS_RESET_REG_1_RST_NIG); - REG_WR(bp, NIG_REG_PORT_SWAP, swap_val); - REG_WR(bp, NIG_REG_STRAP_OVERRIDE, swap_en); + /* reset timer as long as BRB actually gets emptied */ + if (prev_brb > tmp_reg) + timer_count = 1000; + else + timer_count--; - /* send unload done to the MCP */ - bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE, 0); + /* If UNDI resides in memory, manually increment it */ + if (prev_undi) + bnx2x_prev_unload_undi_inc(bp, BP_PORT(bp), 1); - /* restore our func and fw_seq */ - bp->pf_num = orig_pf_num; + udelay(10); } + + if (!timer_count) + BNX2X_ERR("Failed to empty BRB, hope for the best\n"); + } - /* now it's safe to release the lock */ - bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_RESET); + /* No packets are in the pipeline, path is ready for reset */ + bnx2x_reset_common(bp); + + rc = bnx2x_prev_mark_path(bp); + if (rc) { + bnx2x_prev_mcp_done(bp); + return rc; + } + + return bnx2x_prev_mcp_done(bp); +} + +static int __devinit bnx2x_prev_unload(struct bnx2x *bp) +{ + int time_counter = 10; + u32 rc, fw, hw_lock_reg, hw_lock_val; + BNX2X_DEV_INFO("Entering Previous Unload Flow\n"); + + /* Release previously held locks */ + hw_lock_reg = (BP_FUNC(bp) <= 5) ? + (MISC_REG_DRIVER_CONTROL_1 + BP_FUNC(bp) * 8) : + (MISC_REG_DRIVER_CONTROL_7 + (BP_FUNC(bp) - 6) * 8); + + hw_lock_val = (REG_RD(bp, hw_lock_reg)); + if (hw_lock_val) { + if (hw_lock_val & HW_LOCK_RESOURCE_NVRAM) { + BNX2X_DEV_INFO("Release Previously held NVRAM lock\n"); + REG_WR(bp, MCP_REG_MCPR_NVM_SW_ARB, + (MCPR_NVM_SW_ARB_ARB_REQ_CLR1 << BP_PORT(bp))); + } + + BNX2X_DEV_INFO("Release Previously held hw lock\n"); + REG_WR(bp, hw_lock_reg, 0xffffffff); + } else + BNX2X_DEV_INFO("No need to release hw/nvram locks\n"); + + if (MCPR_ACCESS_LOCK_LOCK & REG_RD(bp, MCP_REG_MCPR_ACCESS_LOCK)) { + BNX2X_DEV_INFO("Release previously held alr\n"); + REG_WR(bp, MCP_REG_MCPR_ACCESS_LOCK, 0); + } + + + do { + /* Lock MCP using an unload request */ + fw = bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_REQ_WOL_DIS, 0); + if (!fw) { + BNX2X_ERR("MCP response failure, aborting\n"); + rc = -EBUSY; + break; + } + + if (fw == FW_MSG_CODE_DRV_UNLOAD_COMMON) { + rc = bnx2x_prev_unload_common(bp); + break; + } + + /* non-common reply from MCP night require looping */ + rc = bnx2x_prev_unload_uncommon(bp); + if (rc != BNX2X_PREV_WAIT_NEEDED) + break; + + msleep(20); + } while (--time_counter); + + if (!time_counter || rc) { + BNX2X_ERR("Failed unloading previous driver, aborting\n"); + rc = -EBUSY; + } + + BNX2X_DEV_INFO("Finished Previous Unload Flow [%d]\n", rc); + + return rc; } static void __devinit bnx2x_get_common_hwinfo(struct bnx2x *bp) @@ -10100,8 +10367,16 @@ static int __devinit bnx2x_init_bp(struct bnx2x *bp) func = BP_FUNC(bp); /* need to reset chip if undi was active */ - if (!BP_NOMCP(bp)) - bnx2x_undi_unload(bp); + if (!BP_NOMCP(bp)) { + /* init fw_seq */ + bp->fw_seq = + SHMEM_RD(bp, func_mb[BP_FW_MB_IDX(bp)].drv_mb_header) & + DRV_MSG_SEQ_NUMBER_MASK; + BNX2X_DEV_INFO("fw_seq 0x%08x\n", bp->fw_seq); + + bnx2x_prev_unload(bp); + } + if (CHIP_REV_IS_FPGA(bp)) dev_err(&bp->pdev->dev, "FPGA detected\n"); @@ -11431,9 +11706,18 @@ static int __init bnx2x_init(void) static void __exit bnx2x_cleanup(void) { + struct list_head *pos, *q; pci_unregister_driver(&bnx2x_pci_driver); destroy_workqueue(bnx2x_wq); + + /* Free globablly allocated resources */ + list_for_each_safe(pos, q, &bnx2x_prev_list) { + struct bnx2x_prev_path_list *tmp = + list_entry(pos, struct bnx2x_prev_path_list, list); + list_del(pos); + kfree(tmp); + } } void bnx2x_notify_link_changed(struct bnx2x *bp) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h index fd7fb45..ab0a250 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h @@ -987,6 +987,7 @@ * clear; 1 = set. Data valid only in addresses 0-4. all the rest are zero. */ #define IGU_REG_WRITE_DONE_PENDING 0x130480 #define MCP_A_REG_MCPR_SCRATCH 0x3a0000 +#define MCP_REG_MCPR_ACCESS_LOCK 0x8009c #define MCP_REG_MCPR_CPU_PROGRAM_COUNTER 0x8501c #define MCP_REG_MCPR_GP_INPUTS 0x800c0 #define MCP_REG_MCPR_GP_OENABLE 0x800c8 @@ -1686,6 +1687,7 @@ [10] rst_dbg; [11] rst_misc_core; [12] rst_dbue (UART); [13] Pci_resetmdio_n; [14] rst_emac0_hard_core; [15] rst_emac1_hard_core; 16] rst_pxp_rq_rd_wr; 31:17] reserved */ +#define MISC_REG_RESET_REG_1 0xa580 #define MISC_REG_RESET_REG_2 0xa590 /* [RW 20] 20 bit GRC address where the scratch-pad of the MCP that is shared with the driver resides */ @@ -5606,6 +5608,7 @@ /* [RC 32] Parity register #0 read clear */ #define XSEM_REG_XSEM_PRTY_STS_CLR_0 0x280128 #define XSEM_REG_XSEM_PRTY_STS_CLR_1 0x280138 +#define MCPR_ACCESS_LOCK_LOCK (1L<<31) #define MCPR_NVM_ACCESS_ENABLE_EN (1L<<0) #define MCPR_NVM_ACCESS_ENABLE_WR_EN (1L<<1) #define MCPR_NVM_ADDR_NVM_ADDR_VALUE (0xffffffL<<0) @@ -5732,6 +5735,7 @@ #define MISC_REGISTERS_GPIO_PORT_SHIFT 4 #define MISC_REGISTERS_GPIO_SET_POS 8 #define MISC_REGISTERS_RESET_REG_1_CLEAR 0x588 +#define MISC_REGISTERS_RESET_REG_1_RST_BRB1 (0x1<<0) #define MISC_REGISTERS_RESET_REG_1_RST_DORQ (0x1<<19) #define MISC_REGISTERS_RESET_REG_1_RST_HC (0x1<<29) #define MISC_REGISTERS_RESET_REG_1_RST_NIG (0x1<<7) -- cgit v0.10.2 From c54e9bd38a06babf94fd45e5f1df9a1109e12818 Mon Sep 17 00:00:00 2001 From: Dmitry Kravkov Date: Mon, 26 Mar 2012 21:08:55 +0000 Subject: bnx2x: fix vector traveling while looking for an empty entry MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fixes the bug that may prevent from mac to be configured, while there is an empty slot for it. Reported-by: Maciej Żenczykowski Signed-off-by: Dmitry Kravkov Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c index 3f52fad..5135733 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c @@ -3847,7 +3847,7 @@ static bool bnx2x_credit_pool_get_entry( continue; /* If we've got here we are going to find a free entry */ - for (idx = vec * BNX2X_POOL_VEC_SIZE, i = 0; + for (idx = vec * BIT_VEC64_ELEM_SZ, i = 0; i < BIT_VEC64_ELEM_SZ; idx++, i++) if (BIT_VEC64_TEST_BIT(o->pool_mirror, idx)) { -- cgit v0.10.2 From 819a100846295461bc0f1bfcb8e5ab11c1bc4cdb Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 26 Mar 2012 21:20:48 +0000 Subject: mISDN: array underflow in open_bchannel() There are two channels here. User space starts counting channels at one but in the kernel we start at zero. If the user passes in a zero channel that's invalid and could lead to memory corruption. Signed-off-by: Dan Carpenter Signed-off-by: David S. Miller diff --git a/drivers/isdn/hardware/mISDN/avmfritz.c b/drivers/isdn/hardware/mISDN/avmfritz.c index 05ed4d0c..c0b8c96 100644 --- a/drivers/isdn/hardware/mISDN/avmfritz.c +++ b/drivers/isdn/hardware/mISDN/avmfritz.c @@ -891,7 +891,7 @@ open_bchannel(struct fritzcard *fc, struct channel_req *rq) { struct bchannel *bch; - if (rq->adr.channel > 2) + if (rq->adr.channel == 0 || rq->adr.channel > 2) return -EINVAL; if (rq->protocol == ISDN_P_NONE) return -EINVAL; diff --git a/drivers/isdn/hardware/mISDN/hfcpci.c b/drivers/isdn/hardware/mISDN/hfcpci.c index d055ae7..e2c83a2 100644 --- a/drivers/isdn/hardware/mISDN/hfcpci.c +++ b/drivers/isdn/hardware/mISDN/hfcpci.c @@ -1962,7 +1962,7 @@ open_bchannel(struct hfc_pci *hc, struct channel_req *rq) { struct bchannel *bch; - if (rq->adr.channel > 2) + if (rq->adr.channel == 0 || rq->adr.channel > 2) return -EINVAL; if (rq->protocol == ISDN_P_NONE) return -EINVAL; diff --git a/drivers/isdn/hardware/mISDN/hfcsusb.c b/drivers/isdn/hardware/mISDN/hfcsusb.c index 6023387..8cde2a0 100644 --- a/drivers/isdn/hardware/mISDN/hfcsusb.c +++ b/drivers/isdn/hardware/mISDN/hfcsusb.c @@ -486,7 +486,7 @@ open_bchannel(struct hfcsusb *hw, struct channel_req *rq) { struct bchannel *bch; - if (rq->adr.channel > 2) + if (rq->adr.channel == 0 || rq->adr.channel > 2) return -EINVAL; if (rq->protocol == ISDN_P_NONE) return -EINVAL; diff --git a/drivers/isdn/hardware/mISDN/mISDNipac.c b/drivers/isdn/hardware/mISDN/mISDNipac.c index b47e9be..884369f 100644 --- a/drivers/isdn/hardware/mISDN/mISDNipac.c +++ b/drivers/isdn/hardware/mISDN/mISDNipac.c @@ -1506,7 +1506,7 @@ open_bchannel(struct ipac_hw *ipac, struct channel_req *rq) { struct bchannel *bch; - if (rq->adr.channel > 2) + if (rq->adr.channel == 0 || rq->adr.channel > 2) return -EINVAL; if (rq->protocol == ISDN_P_NONE) return -EINVAL; diff --git a/drivers/isdn/hardware/mISDN/mISDNisar.c b/drivers/isdn/hardware/mISDN/mISDNisar.c index 10446ab..9a6da6e 100644 --- a/drivers/isdn/hardware/mISDN/mISDNisar.c +++ b/drivers/isdn/hardware/mISDN/mISDNisar.c @@ -1670,7 +1670,7 @@ isar_open(struct isar_hw *isar, struct channel_req *rq) { struct bchannel *bch; - if (rq->adr.channel > 2) + if (rq->adr.channel == 0 || rq->adr.channel > 2) return -EINVAL; if (rq->protocol == ISDN_P_NONE) return -EINVAL; diff --git a/drivers/isdn/hardware/mISDN/netjet.c b/drivers/isdn/hardware/mISDN/netjet.c index dd6de9f..c726e09 100644 --- a/drivers/isdn/hardware/mISDN/netjet.c +++ b/drivers/isdn/hardware/mISDN/netjet.c @@ -860,7 +860,7 @@ open_bchannel(struct tiger_hw *card, struct channel_req *rq) { struct bchannel *bch; - if (rq->adr.channel > 2) + if (rq->adr.channel == 0 || rq->adr.channel > 2) return -EINVAL; if (rq->protocol == ISDN_P_NONE) return -EINVAL; diff --git a/drivers/isdn/hardware/mISDN/w6692.c b/drivers/isdn/hardware/mISDN/w6692.c index 7f1e7ba..2183357 100644 --- a/drivers/isdn/hardware/mISDN/w6692.c +++ b/drivers/isdn/hardware/mISDN/w6692.c @@ -1015,7 +1015,7 @@ open_bchannel(struct w6692_hw *card, struct channel_req *rq) { struct bchannel *bch; - if (rq->adr.channel > 2) + if (rq->adr.channel == 0 || rq->adr.channel > 2) return -EINVAL; if (rq->protocol == ISDN_P_NONE) return -EINVAL; -- cgit v0.10.2 From 09e79d6ea65d66e0a5e9ba76865320e74832dc7c Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 26 Mar 2012 22:52:00 +0000 Subject: eql: dont rely on HZ=100 HZ is more likely to be 1000 these days. timer handlers are run from softirq, no need to disable bh skb priority 1 is TC_PRIO_FILLER Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/drivers/net/eql.c b/drivers/net/eql.c index a59cf96..f219d38 100644 --- a/drivers/net/eql.c +++ b/drivers/net/eql.c @@ -125,6 +125,7 @@ #include #include #include +#include #include @@ -143,7 +144,7 @@ static void eql_timer(unsigned long param) equalizer_t *eql = (equalizer_t *) param; struct list_head *this, *tmp, *head; - spin_lock_bh(&eql->queue.lock); + spin_lock(&eql->queue.lock); head = &eql->queue.all_slaves; list_for_each_safe(this, tmp, head) { slave_t *slave = list_entry(this, slave_t, list); @@ -157,7 +158,7 @@ static void eql_timer(unsigned long param) } } - spin_unlock_bh(&eql->queue.lock); + spin_unlock(&eql->queue.lock); eql->timer.expires = jiffies + EQL_DEFAULT_RESCHED_IVAL; add_timer(&eql->timer); @@ -341,7 +342,7 @@ static netdev_tx_t eql_slave_xmit(struct sk_buff *skb, struct net_device *dev) struct net_device *slave_dev = slave->dev; skb->dev = slave_dev; - skb->priority = 1; + skb->priority = TC_PRIO_FILLER; slave->bytes_queued += skb->len; dev_queue_xmit(skb); dev->stats.tx_packets++; diff --git a/include/linux/if_eql.h b/include/linux/if_eql.h index 79c4f26..18a5d02 100644 --- a/include/linux/if_eql.h +++ b/include/linux/if_eql.h @@ -22,7 +22,7 @@ #define EQL_DEFAULT_SLAVE_PRIORITY 28800 #define EQL_DEFAULT_MAX_SLAVES 4 #define EQL_DEFAULT_MTU 576 -#define EQL_DEFAULT_RESCHED_IVAL 100 +#define EQL_DEFAULT_RESCHED_IVAL HZ #define EQL_ENSLAVE (SIOCDEVPRIVATE) #define EQL_EMANCIPATE (SIOCDEVPRIVATE + 1) -- cgit v0.10.2 From 21dcda6083a0573686acabca39b3f92ba032d333 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 27 Mar 2012 03:04:02 +0000 Subject: f_phonet: fix skb truesize underestimation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Now skb_add_rx_frag() has a truesize parameter, we can fix f_phonet to properly account truesize of each fragment : a full page. Signed-off-by: Eric Dumazet Cc: Felipe Balbi Cc: Greg Kroah-Hartman Cc: Rémi Denis-Courmont Signed-off-by: David S. Miller diff --git a/drivers/usb/gadget/f_phonet.c b/drivers/usb/gadget/f_phonet.c index 85a5ceb..965a629 100644 --- a/drivers/usb/gadget/f_phonet.c +++ b/drivers/usb/gadget/f_phonet.c @@ -345,7 +345,7 @@ static void pn_rx_complete(struct usb_ep *ep, struct usb_request *req) } skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page, - skb->len <= 1, req->actual, req->actual); + skb->len <= 1, req->actual, PAGE_SIZE); page = NULL; if (req->actual < req->length) { /* Last fragment */ -- cgit v0.10.2 From 094b5855bf37eae4b297bc47bb5bc5454f1f6fab Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 27 Mar 2012 03:17:26 +0000 Subject: cdc-phonet: fix skb truesize underestimation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Now skb_add_rx_frag() has a truesize parameter, we can fix cdc-phonet to properly account truesize of each fragment : a full page. Signed-off-by: Eric Dumazet Cc: Felipe Balbi Cc: Greg Kroah-Hartman Cc: Rémi Denis-Courmont Acked-by: Rémi Denis-Courmont Signed-off-by: David S. Miller diff --git a/drivers/net/usb/cdc-phonet.c b/drivers/net/usb/cdc-phonet.c index 3886b30..3e41b00 100644 --- a/drivers/net/usb/cdc-phonet.c +++ b/drivers/net/usb/cdc-phonet.c @@ -165,13 +165,13 @@ static void rx_complete(struct urb *req) memcpy(skb_put(skb, 1), page_address(page), 1); skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page, 1, req->actual_length, - req->actual_length); + PAGE_SIZE); page = NULL; } } else { skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page, 0, req->actual_length, - req->actual_length); + PAGE_SIZE); page = NULL; } if (req->actual_length < PAGE_SIZE) -- cgit v0.10.2 From 8cf662ed3ef190fddc186bb5b1cd75eb3880d5a9 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Tue, 27 Mar 2012 10:10:15 +0200 Subject: microblaze: Fix __futex_atomic_op macro register usage Old Microblaze toolchain supported "b" contstrains for all register but it always points to general purpose reg. New Microblaze toolchain is more strict in this and general purpose register should be used there "r". Signed-off-by: Michal Simek diff --git a/arch/microblaze/include/asm/futex.h b/arch/microblaze/include/asm/futex.h index b0526d2..ff8cde1 100644 --- a/arch/microblaze/include/asm/futex.h +++ b/arch/microblaze/include/asm/futex.h @@ -24,7 +24,7 @@ .word 1b,4b,2b,4b; \ .previous;" \ : "=&r" (oldval), "=&r" (ret) \ - : "b" (uaddr), "i" (-EFAULT), "r" (oparg) \ + : "r" (uaddr), "i" (-EFAULT), "r" (oparg) \ ); \ }) -- cgit v0.10.2 From b3f4d5990bfc8b060e5010c1464789fca1f4c5b4 Mon Sep 17 00:00:00 2001 From: stephen hemminger Date: Tue, 13 Mar 2012 06:04:20 +0000 Subject: intel: make wired ethernet driver message level consistent (rev2) Dan Carpenter noticed that ixgbevf initial default was different than the rest. But the problem is broader than that, only one Intel driver (ixgb) was doing it almost right. The convention for default debug level should be consistent among Intel drivers and follow established convention. Signed-off-by: Stephen Hemminger Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c index bcba9cf..4348b6f 100644 --- a/drivers/net/ethernet/intel/e1000/e1000_main.c +++ b/drivers/net/ethernet/intel/e1000/e1000_main.c @@ -217,7 +217,8 @@ MODULE_DESCRIPTION("Intel(R) PRO/1000 Network Driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_VERSION); -static int debug = NETIF_MSG_DRV | NETIF_MSG_PROBE; +#define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK) +static int debug = -1; module_param(debug, int, 0); MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); @@ -981,7 +982,7 @@ static int __devinit e1000_probe(struct pci_dev *pdev, adapter = netdev_priv(netdev); adapter->netdev = netdev; adapter->pdev = pdev; - adapter->msg_enable = (1 << debug) - 1; + adapter->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE); adapter->bars = bars; adapter->need_ioport = need_ioport; diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index 7152eb1..2c38a65 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -60,6 +60,11 @@ char e1000e_driver_name[] = "e1000e"; const char e1000e_driver_version[] = DRV_VERSION; +#define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK) +static int debug = -1; +module_param(debug, int, 0); +MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); + static void e1000e_disable_aspm(struct pci_dev *pdev, u16 state); static const struct e1000_info *e1000_info_tbl[] = { @@ -6172,7 +6177,7 @@ static int __devinit e1000_probe(struct pci_dev *pdev, adapter->hw.adapter = adapter; adapter->hw.mac.type = ei->mac; adapter->max_hw_frame_size = ei->max_hw_frame_size; - adapter->msg_enable = (1 << NETIF_MSG_DRV | NETIF_MSG_PROBE) - 1; + adapter->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE); mmio_start = pci_resource_start(pdev, 0); mmio_len = pci_resource_len(pdev, 0); diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index c490241..5ec3159 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -238,6 +238,11 @@ MODULE_DESCRIPTION("Intel(R) Gigabit Ethernet Network Driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_VERSION); +#define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK) +static int debug = -1; +module_param(debug, int, 0); +MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); + struct igb_reg_info { u32 ofs; char *name; @@ -1893,7 +1898,7 @@ static int __devinit igb_probe(struct pci_dev *pdev, adapter->pdev = pdev; hw = &adapter->hw; hw->back = adapter; - adapter->msg_enable = NETIF_MSG_DRV | NETIF_MSG_PROBE; + adapter->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE); mmio_start = pci_resource_start(pdev, 0); mmio_len = pci_resource_len(pdev, 0); diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c index 217c143..d61ca2a 100644 --- a/drivers/net/ethernet/intel/igbvf/netdev.c +++ b/drivers/net/ethernet/intel/igbvf/netdev.c @@ -55,6 +55,11 @@ static const char igbvf_driver_string[] = static const char igbvf_copyright[] = "Copyright (c) 2009 - 2012 Intel Corporation."; +#define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK) +static int debug = -1; +module_param(debug, int, 0); +MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); + static int igbvf_poll(struct napi_struct *napi, int budget); static void igbvf_reset(struct igbvf_adapter *); static void igbvf_set_interrupt_capability(struct igbvf_adapter *); @@ -2649,7 +2654,7 @@ static int __devinit igbvf_probe(struct pci_dev *pdev, adapter->flags = ei->flags; adapter->hw.back = adapter; adapter->hw.mac.type = ei->mac; - adapter->msg_enable = (1 << NETIF_MSG_DRV | NETIF_MSG_PROBE) - 1; + adapter->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE); /* PCI config space info */ diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_main.c b/drivers/net/ethernet/intel/ixgb/ixgb_main.c index 82aaa79..5fce363 100644 --- a/drivers/net/ethernet/intel/ixgb/ixgb_main.c +++ b/drivers/net/ethernet/intel/ixgb/ixgb_main.c @@ -134,8 +134,8 @@ MODULE_DESCRIPTION("Intel(R) PRO/10GbE Network Driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_VERSION); -#define DEFAULT_DEBUG_LEVEL_SHIFT 3 -static int debug = DEFAULT_DEBUG_LEVEL_SHIFT; +#define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK) +static int debug = -1; module_param(debug, int, 0); MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); @@ -442,7 +442,7 @@ ixgb_probe(struct pci_dev *pdev, const struct pci_device_id *ent) adapter->netdev = netdev; adapter->pdev = pdev; adapter->hw.back = adapter; - adapter->msg_enable = netif_msg_init(debug, DEFAULT_DEBUG_LEVEL_SHIFT); + adapter->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE); adapter->hw.hw_addr = pci_ioremap_bar(pdev, BAR_0); if (!adapter->hw.hw_addr) { diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 398fc22..6dbad2b 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -141,13 +141,16 @@ module_param(allow_unsupported_sfp, uint, 0); MODULE_PARM_DESC(allow_unsupported_sfp, "Allow unsupported and untested SFP+ modules on 82599-based adapters"); +#define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK) +static int debug = -1; +module_param(debug, int, 0); +MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); + MODULE_AUTHOR("Intel Corporation, "); MODULE_DESCRIPTION("Intel(R) 10 Gigabit PCI Express Network Driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_VERSION); -#define DEFAULT_DEBUG_LEVEL_SHIFT 3 - static void ixgbe_service_event_schedule(struct ixgbe_adapter *adapter) { if (!test_bit(__IXGBE_DOWN, &adapter->state) && @@ -6834,7 +6837,7 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev, adapter->pdev = pdev; hw = &adapter->hw; hw->back = adapter; - adapter->msg_enable = (1 << DEFAULT_DEBUG_LEVEL_SHIFT) - 1; + adapter->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE); hw->hw_addr = ioremap(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0)); diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c index 581c659..307611a 100644 --- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c +++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c @@ -91,7 +91,10 @@ MODULE_DESCRIPTION("Intel(R) 82599 Virtual Function Driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_VERSION); -#define DEFAULT_DEBUG_LEVEL_SHIFT 3 +#define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK) +static int debug = -1; +module_param(debug, int, 0); +MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); /* forward decls */ static void ixgbevf_set_itr_msix(struct ixgbevf_q_vector *q_vector); @@ -3367,7 +3370,7 @@ static int __devinit ixgbevf_probe(struct pci_dev *pdev, adapter->pdev = pdev; hw = &adapter->hw; hw->back = adapter; - adapter->msg_enable = (1 << DEFAULT_DEBUG_LEVEL_SHIFT) - 1; + adapter->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE); /* * call save state here in standalone driver because it relies on -- cgit v0.10.2 From 70e5576cb0af5c1351432704a39319af119584bb Mon Sep 17 00:00:00 2001 From: Don Skidmore Date: Thu, 15 Mar 2012 04:55:59 +0000 Subject: ixgbe: fix typo in enumeration name This was pointed out to me by Xiaojun Zhang on Source Forge. CC: Xiaojun Zhang Signed-off-by: Don Skidmore Tested-by: Phil Schmitt Signed-off-by: Jeff Kirsher diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h index 80e26ff..74e1921 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h @@ -544,7 +544,7 @@ struct ixgbe_fdir_filter { u16 action; }; -enum ixbge_state_t { +enum ixgbe_state_t { __IXGBE_TESTING, __IXGBE_RESETTING, __IXGBE_DOWN, -- cgit v0.10.2 From 8e4f3250f4162315fd57190d3364210eacafd7c7 Mon Sep 17 00:00:00 2001 From: Don Skidmore Date: Fri, 16 Mar 2012 05:41:48 +0000 Subject: ixgbe: update version number Update the driver version number to better match version of out of tree driver that has similar functionality. Signed-off-by: Don Skidmore Tested-by: Phil Schmitt Signed-off-by: Jeff Kirsher diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 6dbad2b..3e26b1f 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -63,8 +63,8 @@ static char ixgbe_default_device_descr[] = "Intel(R) 10 Gigabit Network Connection"; #endif #define MAJ 3 -#define MIN 6 -#define BUILD 7 +#define MIN 8 +#define BUILD 21 #define DRV_VERSION __stringify(MAJ) "." __stringify(MIN) "." \ __stringify(BUILD) "-k" const char ixgbe_driver_version[] = DRV_VERSION; -- cgit v0.10.2 From a28d73ca3ac7fffff317e62167ef26310b951ca0 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Wed, 28 Mar 2012 10:31:36 +0200 Subject: microblaze: Fix tlb_skip variable on noMMU system TLBs are available only for MMU systems. Error log: arch/microblaze/kernel/setup.c: In function 'debugfs_tlb': arch/microblaze/kernel/setup.c:217: error: 'tlb_skip' undeclared (first use in this function) arch/microblaze/kernel/setup.c:217: error: (Each undeclared identifier is reported only once arch/microblaze/kernel/setup.c:217: error: for each function it appears in.) make[1]: *** [arch/microblaze/kernel/setup.o] Error 1 Signed-off-by: Michal Simek diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c index e4f5956..61dc739 100644 --- a/arch/microblaze/kernel/setup.c +++ b/arch/microblaze/kernel/setup.c @@ -209,6 +209,7 @@ static int microblaze_debugfs_init(void) } arch_initcall(microblaze_debugfs_init); +# ifdef CONFIG_MMU static int __init debugfs_tlb(void) { struct dentry *d; @@ -221,6 +222,7 @@ static int __init debugfs_tlb(void) return -ENOMEM; } device_initcall(debugfs_tlb); +# endif #endif static int dflt_bus_notify(struct notifier_block *nb, -- cgit v0.10.2 From 2e57b79ccef1ff1422fdf45a9b28fe60f8f084f7 Mon Sep 17 00:00:00 2001 From: Rick Jones Date: Tue, 27 Mar 2012 07:28:09 +0000 Subject: virtio_net: do not rate limit counter increments While it is desirable to rate limit certain messages, it is not desirable to rate limit the incrementing of counters associated with those messages. Signed-off-by: Rick Jones Acked-by: Rusty Russell Acked-by: Michael S. Tsirkin Signed-off-by: David S. Miller diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 019da01..4de2760 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -625,12 +625,13 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev) /* This can happen with OOM and indirect buffers. */ if (unlikely(capacity < 0)) { - if (net_ratelimit()) { - if (likely(capacity == -ENOMEM)) { + if (likely(capacity == -ENOMEM)) { + if (net_ratelimit()) { dev_warn(&dev->dev, "TX queue failure: out of memory\n"); } else { - dev->stats.tx_fifo_errors++; + dev->stats.tx_fifo_errors++; + if (net_ratelimit()) dev_warn(&dev->dev, "Unexpected TX queue failure: %d\n", capacity); -- cgit v0.10.2 From 4e7b2f1454382b220f792a7fbcbebd0985187161 Mon Sep 17 00:00:00 2001 From: Benjamin LaHaise Date: Tue, 27 Mar 2012 15:55:32 +0000 Subject: net/ipv4: fix IPv4 multicast over network namespaces When using multicast over a local bridge feeding a number of LXC guests using veth, the LXC guests are unable to get a response from other guests when pinging 224.0.0.1. Multicast packets did not appear to be getting delivered to the network namespaces of the guest hosts, and further inspection showed that the incoming route was pointing to the loopback device of the host, not the guest. This lead to the wrong network namespace being picked up by sockets (like ICMP). Fix this by using the correct network namespace when creating the inbound route entry. Signed-off-by: Benjamin LaHaise Signed-off-by: David S. Miller diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 12ccf88..3b110a4 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -2042,7 +2042,7 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr, if (err < 0) goto e_err; } - rth = rt_dst_alloc(init_net.loopback_dev, + rth = rt_dst_alloc(dev_net(dev)->loopback_dev, IN_DEV_CONF_GET(in_dev, NOPOLICY), false); if (!rth) goto e_nobufs; -- cgit v0.10.2 From 3b9785c6b0ff37ac4ef5085b38756283da84dceb Mon Sep 17 00:00:00 2001 From: Benjamin LaHaise Date: Tue, 27 Mar 2012 15:55:44 +0000 Subject: net/core: dev_forward_skb() should clear skb_iif While investigating another bug, I found that the code on the incoming path in __netif_receive_skb will only set skb->skb_iif if it is already 0. When dev_forward_skb() is used in the case of interfaces like veth, skb_iif may already have been set. Making dev_forward_skb() cause the packet to look like a newly received packet would seem to the the correct behaviour here, as otherwise the wrong incoming interface can be reported for such a packet. Signed-off-by: Benjamin LaHaise Signed-off-by: David S. Miller diff --git a/net/core/dev.c b/net/core/dev.c index 452db70..723a406 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1597,6 +1597,7 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb) kfree_skb(skb); return NET_RX_DROP; } + skb->skb_iif = 0; skb_set_dev(skb, dev); skb->tstamp.tv64 = 0; skb->pkt_type = PACKET_HOST; -- cgit v0.10.2 From 3d9ea9e3af048ab6b8dced15248384e548ba05ea Mon Sep 17 00:00:00 2001 From: Don Morris Date: Thu, 15 Mar 2012 11:07:30 -0700 Subject: iop-adma: Corrected array overflow in RAID6 Xscale(R) test. Bug: cppcheck reported overflow in array assignment (for loop walks 0 to IOP_ADMA_NUM_SRC_TEST+2, array size is IOP_ADMA_NUM_SRC_TEST). Reported as: https://bugzilla.kernel.org/show_bug.cgi?id=42677 Test code pq_src array was grown by two elements to correspond with actual usage (IOP_ADMA_NUM_SRC_TEST+2), stack consumption was kept constant by modifying the pq_dest two element array which is only used when pq_src is referenced up to IOP_ADMA_NUM_SRC_TEST elements into the address of the new last two elements of the pq_src array. This is presumed to be the original intent but would be reliant on compilers always having pq_dest contiguous with the final element of pq_src. Note: This is a re-send of a request for review from two weeks ago. Looking for review (or shootdown), adding LKML to list for a wider audience. Thanks. Updated per review comments of Sergei Shtylyov Signed-off-by: Don Morris Signed-off-by: Dan Williams diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c index 04be90b..9b1951d 100644 --- a/drivers/dma/iop-adma.c +++ b/drivers/dma/iop-adma.c @@ -1271,8 +1271,8 @@ iop_adma_pq_zero_sum_self_test(struct iop_adma_device *device) struct page **pq_hw = &pq[IOP_ADMA_NUM_SRC_TEST+2]; /* address conversion buffers (dma_map / page_address) */ void *pq_sw[IOP_ADMA_NUM_SRC_TEST+2]; - dma_addr_t pq_src[IOP_ADMA_NUM_SRC_TEST]; - dma_addr_t pq_dest[2]; + dma_addr_t pq_src[IOP_ADMA_NUM_SRC_TEST+2]; + dma_addr_t *pq_dest = &pq_src[IOP_ADMA_NUM_SRC_TEST]; int i; struct dma_async_tx_descriptor *tx; -- cgit v0.10.2 From 2f2cc27f50e3d232602d3b7c972071b4a30e5e38 Mon Sep 17 00:00:00 2001 From: "Ying-Chun Liu (PaulLiu)" Date: Tue, 27 Mar 2012 15:54:01 +0800 Subject: regulator: anatop: patching to device-tree property "reg". Change "reg" to "anatop-reg-offset" due to there is a warning of handling no size field in reg. This patch also adds the missing device-tree binding documentation. Signed-off-by: Ying-Chun Liu (PaulLiu) Acked-by: Shawn Guo Signed-off-by: Mark Brown diff --git a/Documentation/devicetree/bindings/regulator/anatop-regulator.txt b/Documentation/devicetree/bindings/regulator/anatop-regulator.txt new file mode 100644 index 0000000..357758c --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/anatop-regulator.txt @@ -0,0 +1,29 @@ +Anatop Voltage regulators + +Required properties: +- compatible: Must be "fsl,anatop-regulator" +- anatop-reg-offset: Anatop MFD register offset +- anatop-vol-bit-shift: Bit shift for the register +- anatop-vol-bit-width: Number of bits used in the register +- anatop-min-bit-val: Minimum value of this register +- anatop-min-voltage: Minimum voltage of this regulator +- anatop-max-voltage: Maximum voltage of this regulator + +Any property defined as part of the core regulator +binding, defined in regulator.txt, can also be used. + +Example: + + regulator-vddpu { + compatible = "fsl,anatop-regulator"; + regulator-name = "vddpu"; + regulator-min-microvolt = <725000>; + regulator-max-microvolt = <1300000>; + regulator-always-on; + anatop-reg-offset = <0x140>; + anatop-vol-bit-shift = <9>; + anatop-vol-bit-width = <5>; + anatop-min-bit-val = <1>; + anatop-min-voltage = <725000>; + anatop-max-voltage = <1300000>; + }; diff --git a/drivers/regulator/anatop-regulator.c b/drivers/regulator/anatop-regulator.c index 17499a5..53969af 100644 --- a/drivers/regulator/anatop-regulator.c +++ b/drivers/regulator/anatop-regulator.c @@ -138,9 +138,10 @@ static int __devinit anatop_regulator_probe(struct platform_device *pdev) rdesc->type = REGULATOR_VOLTAGE; rdesc->owner = THIS_MODULE; sreg->mfd = anatopmfd; - ret = of_property_read_u32(np, "reg", &sreg->control_reg); + ret = of_property_read_u32(np, "anatop-reg-offset", + &sreg->control_reg); if (ret) { - dev_err(dev, "no reg property set\n"); + dev_err(dev, "no anatop-reg-offset property set\n"); goto anatop_probe_end; } ret = of_property_read_u32(np, "anatop-vol-bit-width", -- cgit v0.10.2 From a171e782a97d4ba55d7fa02f9a46904288b2c229 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 27 Mar 2012 15:17:26 +0800 Subject: regulator: wm831x-dcdc: Fix the logic to choose best current limit setting Current code in wm831x_buckv_set_current_limit actually set the current limit setting greater than specified range. Fix the logic in wm831x_buckv_set_current_limit to choose the smallest current limit setting falls within the specified range. Signed-off-by: Axel Lin Signed-off-by: Mark Brown diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c index 3044001..ff810e7 100644 --- a/drivers/regulator/wm831x-dcdc.c +++ b/drivers/regulator/wm831x-dcdc.c @@ -380,7 +380,8 @@ static int wm831x_buckv_set_current_limit(struct regulator_dev *rdev, int i; for (i = 0; i < ARRAY_SIZE(wm831x_dcdc_ilim); i++) { - if (max_uA <= wm831x_dcdc_ilim[i]) + if ((min_uA <= wm831x_dcdc_ilim[i]) && + (wm831x_dcdc_ilim[i] <= max_uA)) break; } if (i == ARRAY_SIZE(wm831x_dcdc_ilim)) -- cgit v0.10.2 From ed3be9a0e3c1050fe07d69a8c600d86cac76cdc4 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 27 Mar 2012 15:18:53 +0800 Subject: regulator: wm831x-isink: Fix the logic to choose best current limit setting Current code in wm831x_isink_set_current actually set the current limit setting smaller than specified range. Fix the logic in wm831x_isink_set_current to choose the smallest current limit setting falls within the specified range. Signed-off-by: Axel Lin Signed-off-by: Mark Brown diff --git a/drivers/regulator/wm831x-isink.c b/drivers/regulator/wm831x-isink.c index 634aac3..b414e09 100644 --- a/drivers/regulator/wm831x-isink.c +++ b/drivers/regulator/wm831x-isink.c @@ -101,7 +101,7 @@ static int wm831x_isink_set_current(struct regulator_dev *rdev, for (i = 0; i < ARRAY_SIZE(wm831x_isinkv_values); i++) { int val = wm831x_isinkv_values[i]; - if (min_uA >= val && val <= max_uA) { + if (min_uA <= val && val <= max_uA) { ret = wm831x_set_bits(wm831x, isink->reg, WM831X_CS1_ISEL_MASK, i); return ret; -- cgit v0.10.2 From 3a744038b3709cd467b693f3e146c6d5b8120a18 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 27 Mar 2012 15:20:08 +0800 Subject: regulator: wm8350: Fix the logic to choose best current limit setting Current implementation in get_isink_val actually choose the biggest current limit setting falls within the specified range. What we want is to choose the smallest current limit setting falls within the specified range. Fix it. Signed-off-by: Axel Lin Signed-off-by: Mark Brown diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c index ff34654..f29803c 100644 --- a/drivers/regulator/wm8350-regulator.c +++ b/drivers/regulator/wm8350-regulator.c @@ -99,7 +99,7 @@ static int get_isink_val(int min_uA, int max_uA, u16 *setting) { int i; - for (i = ARRAY_SIZE(isink_cur) - 1; i >= 0; i--) { + for (i = 0; i < ARRAY_SIZE(isink_cur); i++) { if (min_uA <= isink_cur[i] && max_uA >= isink_cur[i]) { *setting = i; return 0; -- cgit v0.10.2 From fa5a97bb0c65cb8d0382b72a55e2b87e15268289 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 27 Mar 2012 15:21:45 +0800 Subject: regulator: Return microamps in wm8350_isink_get_current The values in isink_cur array are microamps. The regulator core expects get_current_limit callback to return microamps. Signed-off-by: Axel Lin Signed-off-by: Mark Brown diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c index f29803c..c5f3b40 100644 --- a/drivers/regulator/wm8350-regulator.c +++ b/drivers/regulator/wm8350-regulator.c @@ -186,7 +186,7 @@ static int wm8350_isink_get_current(struct regulator_dev *rdev) return 0; } - return DIV_ROUND_CLOSEST(isink_cur[val], 100); + return isink_cur[val]; } /* turn on ISINK followed by DCDC */ -- cgit v0.10.2 From 613c4578d4079a14dbee76ef7e0c80f635522fe3 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Wed, 28 Mar 2012 16:36:27 +0200 Subject: common: dma-mapping: introduce generic alloc() and free() methods Introduce new generic alloc and free methods with attributes argument. Existing alloc_coherent and free_coherent can be implemented on top of the new calls with NULL attributes argument. Later also dma_alloc_non_coherent can be implemented using DMA_ATTR_NONCOHERENT attribute as well as dma_alloc_writecombine with separate DMA_ATTR_WRITECOMBINE attribute. This way the drivers will get more generic, platform independent way of allocating dma buffers with specific parameters. Signed-off-by: Marek Szyprowski Acked-by: Kyungmin Park Reviewed-by: David Gibson Reviewed-by: Arnd Bergmann diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index e13117c..8cc7f95 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -13,6 +13,12 @@ struct dma_map_ops { dma_addr_t *dma_handle, gfp_t gfp); void (*free_coherent)(struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle); + void* (*alloc)(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t gfp, + struct dma_attrs *attrs); + void (*free)(struct device *dev, size_t size, + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs); dma_addr_t (*map_page)(struct device *dev, struct page *page, unsigned long offset, size_t size, enum dma_data_direction dir, -- cgit v0.10.2 From baa676fcf8d555269bd0a5a2496782beee55824d Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 27 Mar 2012 14:28:18 +0200 Subject: X86 & IA64: adapt for dma_map_ops changes Adapt core x86 and IA64 architecture code for dma_map_ops changes: replace alloc/free_coherent with generic alloc/free methods. Signed-off-by: Andrzej Pietrasiewicz Acked-by: Kyungmin Park [removed swiotlb related changes and replaced it with wrappers, merged with IA64 patch to avoid inter-patch dependences in intel-iommu code] Signed-off-by: Marek Szyprowski Reviewed-by: Arnd Bergmann Acked-by: Tony Luck diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c index f5f4ef1..e5eb9c4 100644 --- a/arch/ia64/hp/common/sba_iommu.c +++ b/arch/ia64/hp/common/sba_iommu.c @@ -1130,7 +1130,8 @@ void sba_unmap_single_attrs(struct device *dev, dma_addr_t iova, size_t size, * See Documentation/DMA-API-HOWTO.txt */ static void * -sba_alloc_coherent (struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flags) +sba_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, + gfp_t flags, struct dma_attrs *attrs) { struct ioc *ioc; void *addr; @@ -1192,8 +1193,8 @@ sba_alloc_coherent (struct device *dev, size_t size, dma_addr_t *dma_handle, gfp * * See Documentation/DMA-API-HOWTO.txt */ -static void sba_free_coherent (struct device *dev, size_t size, void *vaddr, - dma_addr_t dma_handle) +static void sba_free_coherent(struct device *dev, size_t size, void *vaddr, + dma_addr_t dma_handle, struct dma_attrs *attrs) { sba_unmap_single_attrs(dev, dma_handle, size, 0, NULL); free_pages((unsigned long) vaddr, get_order(size)); @@ -2213,8 +2214,8 @@ sba_page_override(char *str) __setup("sbapagesize=",sba_page_override); struct dma_map_ops sba_dma_ops = { - .alloc_coherent = sba_alloc_coherent, - .free_coherent = sba_free_coherent, + .alloc = sba_alloc_coherent, + .free = sba_free_coherent, .map_page = sba_map_page, .unmap_page = sba_unmap_page, .map_sg = sba_map_sg_attrs, diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h index 4336d08..4f5e814 100644 --- a/arch/ia64/include/asm/dma-mapping.h +++ b/arch/ia64/include/asm/dma-mapping.h @@ -23,23 +23,29 @@ extern void machvec_dma_sync_single(struct device *, dma_addr_t, size_t, extern void machvec_dma_sync_sg(struct device *, struct scatterlist *, int, enum dma_data_direction); -static inline void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *daddr, gfp_t gfp) +#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL) + +static inline void *dma_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *daddr, gfp_t gfp, + struct dma_attrs *attrs) { struct dma_map_ops *ops = platform_dma_get_ops(dev); void *caddr; - caddr = ops->alloc_coherent(dev, size, daddr, gfp); + caddr = ops->alloc(dev, size, daddr, gfp, attrs); debug_dma_alloc_coherent(dev, size, *daddr, caddr); return caddr; } -static inline void dma_free_coherent(struct device *dev, size_t size, - void *caddr, dma_addr_t daddr) +#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) + +static inline void dma_free_attrs(struct device *dev, size_t size, + void *caddr, dma_addr_t daddr, + struct dma_attrs *attrs) { struct dma_map_ops *ops = platform_dma_get_ops(dev); debug_dma_free_coherent(dev, size, caddr, daddr); - ops->free_coherent(dev, size, caddr, daddr); + ops->free(dev, size, caddr, daddr, attrs); } #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c index d9485d9..939260a 100644 --- a/arch/ia64/kernel/pci-swiotlb.c +++ b/arch/ia64/kernel/pci-swiotlb.c @@ -15,16 +15,24 @@ int swiotlb __read_mostly; EXPORT_SYMBOL(swiotlb); static void *ia64_swiotlb_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp) + dma_addr_t *dma_handle, gfp_t gfp, + struct dma_attrs *attrs) { if (dev->coherent_dma_mask != DMA_BIT_MASK(64)) gfp |= GFP_DMA; return swiotlb_alloc_coherent(dev, size, dma_handle, gfp); } +static void ia64_swiotlb_free_coherent(struct device *dev, size_t size, + void *vaddr, dma_addr_t dma_addr, + struct dma_attrs *attrs) +{ + swiotlb_free_coherent(dev, size, vaddr, dma_addr); +} + struct dma_map_ops swiotlb_dma_ops = { - .alloc_coherent = ia64_swiotlb_alloc_coherent, - .free_coherent = swiotlb_free_coherent, + .alloc = ia64_swiotlb_alloc_coherent, + .free = ia64_swiotlb_free_coherent, .map_page = swiotlb_map_page, .unmap_page = swiotlb_unmap_page, .map_sg = swiotlb_map_sg_attrs, diff --git a/arch/ia64/sn/pci/pci_dma.c b/arch/ia64/sn/pci/pci_dma.c index a9d310d..3290d6e 100644 --- a/arch/ia64/sn/pci/pci_dma.c +++ b/arch/ia64/sn/pci/pci_dma.c @@ -76,7 +76,8 @@ EXPORT_SYMBOL(sn_dma_set_mask); * more information. */ static void *sn_dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t * dma_handle, gfp_t flags) + dma_addr_t * dma_handle, gfp_t flags, + struct dma_attrs *attrs) { void *cpuaddr; unsigned long phys_addr; @@ -137,7 +138,7 @@ static void *sn_dma_alloc_coherent(struct device *dev, size_t size, * any associated IOMMU mappings. */ static void sn_dma_free_coherent(struct device *dev, size_t size, void *cpu_addr, - dma_addr_t dma_handle) + dma_addr_t dma_handle, struct dma_attrs *attrs) { struct pci_dev *pdev = to_pci_dev(dev); struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev); @@ -466,8 +467,8 @@ int sn_pci_legacy_write(struct pci_bus *bus, u16 port, u32 val, u8 size) } static struct dma_map_ops sn_dma_ops = { - .alloc_coherent = sn_dma_alloc_coherent, - .free_coherent = sn_dma_free_coherent, + .alloc = sn_dma_alloc_coherent, + .free = sn_dma_free_coherent, .map_page = sn_dma_map_page, .unmap_page = sn_dma_unmap_page, .map_sg = sn_dma_map_sg, diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h index ed3065f..4b4331d 100644 --- a/arch/x86/include/asm/dma-mapping.h +++ b/arch/x86/include/asm/dma-mapping.h @@ -59,7 +59,8 @@ extern int dma_supported(struct device *hwdev, u64 mask); extern int dma_set_mask(struct device *dev, u64 mask); extern void *dma_generic_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_addr, gfp_t flag); + dma_addr_t *dma_addr, gfp_t flag, + struct dma_attrs *attrs); static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) { @@ -111,9 +112,11 @@ static inline gfp_t dma_alloc_coherent_gfp_flags(struct device *dev, gfp_t gfp) return gfp; } +#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL) + static inline void * -dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, - gfp_t gfp) +dma_alloc_attrs(struct device *dev, size_t size, dma_addr_t *dma_handle, + gfp_t gfp, struct dma_attrs *attrs) { struct dma_map_ops *ops = get_dma_ops(dev); void *memory; @@ -129,18 +132,21 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, if (!is_device_dma_capable(dev)) return NULL; - if (!ops->alloc_coherent) + if (!ops->alloc) return NULL; - memory = ops->alloc_coherent(dev, size, dma_handle, - dma_alloc_coherent_gfp_flags(dev, gfp)); + memory = ops->alloc(dev, size, dma_handle, + dma_alloc_coherent_gfp_flags(dev, gfp), attrs); debug_dma_alloc_coherent(dev, size, *dma_handle, memory); return memory; } -static inline void dma_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t bus) +#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) + +static inline void dma_free_attrs(struct device *dev, size_t size, + void *vaddr, dma_addr_t bus, + struct dma_attrs *attrs) { struct dma_map_ops *ops = get_dma_ops(dev); @@ -150,8 +156,8 @@ static inline void dma_free_coherent(struct device *dev, size_t size, return; debug_dma_free_coherent(dev, size, vaddr, bus); - if (ops->free_coherent) - ops->free_coherent(dev, size, vaddr, bus); + if (ops->free) + ops->free(dev, size, vaddr, bus, attrs); } #endif diff --git a/arch/x86/kernel/amd_gart_64.c b/arch/x86/kernel/amd_gart_64.c index b1e7c7f..e663112 100644 --- a/arch/x86/kernel/amd_gart_64.c +++ b/arch/x86/kernel/amd_gart_64.c @@ -477,7 +477,7 @@ error: /* allocate and map a coherent mapping */ static void * gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr, - gfp_t flag) + gfp_t flag, struct dma_attrs *attrs) { dma_addr_t paddr; unsigned long align_mask; @@ -500,7 +500,8 @@ gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr, } __free_pages(page, get_order(size)); } else - return dma_generic_alloc_coherent(dev, size, dma_addr, flag); + return dma_generic_alloc_coherent(dev, size, dma_addr, flag, + attrs); return NULL; } @@ -508,7 +509,7 @@ gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr, /* free a coherent mapping */ static void gart_free_coherent(struct device *dev, size_t size, void *vaddr, - dma_addr_t dma_addr) + dma_addr_t dma_addr, struct dma_attrs *attrs) { gart_unmap_page(dev, dma_addr, size, DMA_BIDIRECTIONAL, NULL); free_pages((unsigned long)vaddr, get_order(size)); @@ -700,8 +701,8 @@ static struct dma_map_ops gart_dma_ops = { .unmap_sg = gart_unmap_sg, .map_page = gart_map_page, .unmap_page = gart_unmap_page, - .alloc_coherent = gart_alloc_coherent, - .free_coherent = gart_free_coherent, + .alloc = gart_alloc_coherent, + .free = gart_free_coherent, .mapping_error = gart_mapping_error, }; diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c index 726494b..07b587c 100644 --- a/arch/x86/kernel/pci-calgary_64.c +++ b/arch/x86/kernel/pci-calgary_64.c @@ -431,7 +431,7 @@ static void calgary_unmap_page(struct device *dev, dma_addr_t dma_addr, } static void* calgary_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) + dma_addr_t *dma_handle, gfp_t flag, struct dma_attrs *attrs) { void *ret = NULL; dma_addr_t mapping; @@ -464,7 +464,8 @@ error: } static void calgary_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { unsigned int npages; struct iommu_table *tbl = find_iommu_table(dev); @@ -477,8 +478,8 @@ static void calgary_free_coherent(struct device *dev, size_t size, } static struct dma_map_ops calgary_dma_ops = { - .alloc_coherent = calgary_alloc_coherent, - .free_coherent = calgary_free_coherent, + .alloc = calgary_alloc_coherent, + .free = calgary_free_coherent, .map_sg = calgary_map_sg, .unmap_sg = calgary_unmap_sg, .map_page = calgary_map_page, diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c index 1c4d769..75e1cc1 100644 --- a/arch/x86/kernel/pci-dma.c +++ b/arch/x86/kernel/pci-dma.c @@ -96,7 +96,8 @@ void __init pci_iommu_alloc(void) } } void *dma_generic_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_addr, gfp_t flag) + dma_addr_t *dma_addr, gfp_t flag, + struct dma_attrs *attrs) { unsigned long dma_mask; struct page *page; diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c index 3af4af8..f960506 100644 --- a/arch/x86/kernel/pci-nommu.c +++ b/arch/x86/kernel/pci-nommu.c @@ -75,7 +75,7 @@ static int nommu_map_sg(struct device *hwdev, struct scatterlist *sg, } static void nommu_free_coherent(struct device *dev, size_t size, void *vaddr, - dma_addr_t dma_addr) + dma_addr_t dma_addr, struct dma_attrs *attrs) { free_pages((unsigned long)vaddr, get_order(size)); } @@ -96,8 +96,8 @@ static void nommu_sync_sg_for_device(struct device *dev, } struct dma_map_ops nommu_dma_ops = { - .alloc_coherent = dma_generic_alloc_coherent, - .free_coherent = nommu_free_coherent, + .alloc = dma_generic_alloc_coherent, + .free = nommu_free_coherent, .map_sg = nommu_map_sg, .map_page = nommu_map_page, .sync_single_for_device = nommu_sync_single_for_device, diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c index 8f972cb..6c483ba 100644 --- a/arch/x86/kernel/pci-swiotlb.c +++ b/arch/x86/kernel/pci-swiotlb.c @@ -15,21 +15,30 @@ int swiotlb __read_mostly; static void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size, - dma_addr_t *dma_handle, gfp_t flags) + dma_addr_t *dma_handle, gfp_t flags, + struct dma_attrs *attrs) { void *vaddr; - vaddr = dma_generic_alloc_coherent(hwdev, size, dma_handle, flags); + vaddr = dma_generic_alloc_coherent(hwdev, size, dma_handle, flags, + attrs); if (vaddr) return vaddr; return swiotlb_alloc_coherent(hwdev, size, dma_handle, flags); } +static void x86_swiotlb_free_coherent(struct device *dev, size_t size, + void *vaddr, dma_addr_t dma_addr, + struct dma_attrs *attrs) +{ + swiotlb_free_coherent(dev, size, vaddr, dma_addr); +} + static struct dma_map_ops swiotlb_dma_ops = { .mapping_error = swiotlb_dma_mapping_error, - .alloc_coherent = x86_swiotlb_alloc_coherent, - .free_coherent = swiotlb_free_coherent, + .alloc = x86_swiotlb_alloc_coherent, + .free = x86_swiotlb_free_coherent, .sync_single_for_cpu = swiotlb_sync_single_for_cpu, .sync_single_for_device = swiotlb_sync_single_for_device, .sync_sg_for_cpu = swiotlb_sync_sg_for_cpu, diff --git a/arch/x86/xen/pci-swiotlb-xen.c b/arch/x86/xen/pci-swiotlb-xen.c index b480d42..967633a 100644 --- a/arch/x86/xen/pci-swiotlb-xen.c +++ b/arch/x86/xen/pci-swiotlb-xen.c @@ -12,8 +12,8 @@ int xen_swiotlb __read_mostly; static struct dma_map_ops xen_swiotlb_dma_ops = { .mapping_error = xen_swiotlb_dma_mapping_error, - .alloc_coherent = xen_swiotlb_alloc_coherent, - .free_coherent = xen_swiotlb_free_coherent, + .alloc = xen_swiotlb_alloc_coherent, + .free = xen_swiotlb_free_coherent, .sync_single_for_cpu = xen_swiotlb_sync_single_for_cpu, .sync_single_for_device = xen_swiotlb_sync_single_for_device, .sync_sg_for_cpu = xen_swiotlb_sync_sg_for_cpu, diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index f75e060..daa333f 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -2707,7 +2707,8 @@ static void unmap_sg(struct device *dev, struct scatterlist *sglist, * The exported alloc_coherent function for dma_ops. */ static void *alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_addr, gfp_t flag) + dma_addr_t *dma_addr, gfp_t flag, + struct dma_attrs *attrs) { unsigned long flags; void *virt_addr; @@ -2765,7 +2766,8 @@ out_free: * The exported free_coherent function for dma_ops. */ static void free_coherent(struct device *dev, size_t size, - void *virt_addr, dma_addr_t dma_addr) + void *virt_addr, dma_addr_t dma_addr, + struct dma_attrs *attrs) { unsigned long flags; struct protection_domain *domain; @@ -2846,8 +2848,8 @@ static void prealloc_protection_domains(void) } static struct dma_map_ops amd_iommu_dma_ops = { - .alloc_coherent = alloc_coherent, - .free_coherent = free_coherent, + .alloc = alloc_coherent, + .free = free_coherent, .map_page = map_page, .unmap_page = unmap_page, .map_sg = map_sg, diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index c9c6053..e39bfdc 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -2938,7 +2938,8 @@ static void intel_unmap_page(struct device *dev, dma_addr_t dev_addr, } static void *intel_alloc_coherent(struct device *hwdev, size_t size, - dma_addr_t *dma_handle, gfp_t flags) + dma_addr_t *dma_handle, gfp_t flags, + struct dma_attrs *attrs) { void *vaddr; int order; @@ -2970,7 +2971,7 @@ static void *intel_alloc_coherent(struct device *hwdev, size_t size, } static void intel_free_coherent(struct device *hwdev, size_t size, void *vaddr, - dma_addr_t dma_handle) + dma_addr_t dma_handle, struct dma_attrs *attrs) { int order; @@ -3115,8 +3116,8 @@ static int intel_mapping_error(struct device *dev, dma_addr_t dma_addr) } struct dma_map_ops intel_dma_ops = { - .alloc_coherent = intel_alloc_coherent, - .free_coherent = intel_free_coherent, + .alloc = intel_alloc_coherent, + .free = intel_free_coherent, .map_sg = intel_map_sg, .unmap_sg = intel_unmap_sg, .map_page = intel_map_page, diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index 19e6a20..1afb4fb 100644 --- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -204,7 +204,8 @@ error: void * xen_swiotlb_alloc_coherent(struct device *hwdev, size_t size, - dma_addr_t *dma_handle, gfp_t flags) + dma_addr_t *dma_handle, gfp_t flags, + struct dma_attrs *attrs) { void *ret; int order = get_order(size); @@ -253,7 +254,7 @@ EXPORT_SYMBOL_GPL(xen_swiotlb_alloc_coherent); void xen_swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr, - dma_addr_t dev_addr) + dma_addr_t dev_addr, struct dma_attrs *attrs) { int order = get_order(size); phys_addr_t phys; diff --git a/include/xen/swiotlb-xen.h b/include/xen/swiotlb-xen.h index 2ea2fdc..4f4d449 100644 --- a/include/xen/swiotlb-xen.h +++ b/include/xen/swiotlb-xen.h @@ -7,11 +7,13 @@ extern void xen_swiotlb_init(int verbose); extern void *xen_swiotlb_alloc_coherent(struct device *hwdev, size_t size, - dma_addr_t *dma_handle, gfp_t flags); + dma_addr_t *dma_handle, gfp_t flags, + struct dma_attrs *attrs); extern void xen_swiotlb_free_coherent(struct device *hwdev, size_t size, - void *vaddr, dma_addr_t dma_handle); + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs); extern dma_addr_t xen_swiotlb_map_page(struct device *dev, struct page *page, unsigned long offset, size_t size, -- cgit v0.10.2 From e8d51e54ab4020d984dda471ca077c7fed094326 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 27 Mar 2012 14:32:21 +0200 Subject: MIPS: adapt for dma_map_ops changes Adapt core MIPS architecture code for dma_map_ops changes: replace alloc/free_coherent with generic alloc/free methods. Signed-off-by: Andrzej Pietrasiewicz Acked-by: Kyungmin Park [added missing changes to arch/mips/cavium-octeon/dma-octeon.c, fixed attrs argument in dma-mapping.h] Signed-off-by: Marek Szyprowski Reviewed-by: Arnd Bergmann diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c index b6bb92c..41dd0088 100644 --- a/arch/mips/cavium-octeon/dma-octeon.c +++ b/arch/mips/cavium-octeon/dma-octeon.c @@ -157,7 +157,7 @@ static void octeon_dma_sync_sg_for_device(struct device *dev, } static void *octeon_dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp) + dma_addr_t *dma_handle, gfp_t gfp, struct dma_attrs *attrs) { void *ret; @@ -192,7 +192,7 @@ static void *octeon_dma_alloc_coherent(struct device *dev, size_t size, } static void octeon_dma_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) + void *vaddr, dma_addr_t dma_handle, struct dma_attrs *attrs) { int order = get_order(size); @@ -240,8 +240,8 @@ EXPORT_SYMBOL(dma_to_phys); static struct octeon_dma_map_ops octeon_linear_dma_map_ops = { .dma_map_ops = { - .alloc_coherent = octeon_dma_alloc_coherent, - .free_coherent = octeon_dma_free_coherent, + .alloc = octeon_dma_alloc_coherent, + .free = octeon_dma_free_coherent, .map_page = octeon_dma_map_page, .unmap_page = swiotlb_unmap_page, .map_sg = octeon_dma_map_sg, @@ -325,8 +325,8 @@ void __init plat_swiotlb_setup(void) #ifdef CONFIG_PCI static struct octeon_dma_map_ops _octeon_pci_dma_map_ops = { .dma_map_ops = { - .alloc_coherent = octeon_dma_alloc_coherent, - .free_coherent = octeon_dma_free_coherent, + .alloc = octeon_dma_alloc_coherent, + .free = octeon_dma_free_coherent, .map_page = octeon_dma_map_page, .unmap_page = swiotlb_unmap_page, .map_sg = octeon_dma_map_sg, diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h index 7aa37dd..be39a12 100644 --- a/arch/mips/include/asm/dma-mapping.h +++ b/arch/mips/include/asm/dma-mapping.h @@ -57,25 +57,31 @@ dma_set_mask(struct device *dev, u64 mask) extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size, enum dma_data_direction direction); -static inline void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp) +#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL) + +static inline void *dma_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t gfp, + struct dma_attrs *attrs) { void *ret; struct dma_map_ops *ops = get_dma_ops(dev); - ret = ops->alloc_coherent(dev, size, dma_handle, gfp); + ret = ops->alloc(dev, size, dma_handle, gfp, attrs); debug_dma_alloc_coherent(dev, size, *dma_handle, ret); return ret; } -static inline void dma_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) +#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) + +static inline void dma_free_attrs(struct device *dev, size_t size, + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { struct dma_map_ops *ops = get_dma_ops(dev); - ops->free_coherent(dev, size, vaddr, dma_handle); + ops->free(dev, size, vaddr, dma_handle, attrs); debug_dma_free_coherent(dev, size, vaddr, dma_handle); } diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c index 4608491..3fab204 100644 --- a/arch/mips/mm/dma-default.c +++ b/arch/mips/mm/dma-default.c @@ -98,7 +98,7 @@ void *dma_alloc_noncoherent(struct device *dev, size_t size, EXPORT_SYMBOL(dma_alloc_noncoherent); static void *mips_dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t * dma_handle, gfp_t gfp) + dma_addr_t * dma_handle, gfp_t gfp, struct dma_attrs *attrs) { void *ret; @@ -132,7 +132,7 @@ void dma_free_noncoherent(struct device *dev, size_t size, void *vaddr, EXPORT_SYMBOL(dma_free_noncoherent); static void mips_dma_free_coherent(struct device *dev, size_t size, void *vaddr, - dma_addr_t dma_handle) + dma_addr_t dma_handle, struct dma_attrs *attrs) { unsigned long addr = (unsigned long) vaddr; int order = get_order(size); @@ -323,8 +323,8 @@ void dma_cache_sync(struct device *dev, void *vaddr, size_t size, EXPORT_SYMBOL(dma_cache_sync); static struct dma_map_ops mips_default_dma_map_ops = { - .alloc_coherent = mips_dma_alloc_coherent, - .free_coherent = mips_dma_free_coherent, + .alloc = mips_dma_alloc_coherent, + .free = mips_dma_free_coherent, .map_page = mips_dma_map_page, .unmap_page = mips_dma_unmap_page, .map_sg = mips_dma_map_sg, -- cgit v0.10.2 From bfbf7d615101391c4e24792685b64b38d84d542e Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 6 Dec 2011 14:14:46 +0100 Subject: PowerPC: adapt for dma_map_ops changes Adapt core PowerPC architecture code for dma_map_ops changes: replace alloc/free_coherent with generic alloc/free methods. Signed-off-by: Andrzej Pietrasiewicz [added missing changes to arch/powerpc/kernel/vio.c] Signed-off-by: Kyungmin Park Signed-off-by: Marek Szyprowski Reviewed-by: David Gibson Reviewed-by: Arnd Bergmann diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h index dd70fac..62678e3 100644 --- a/arch/powerpc/include/asm/dma-mapping.h +++ b/arch/powerpc/include/asm/dma-mapping.h @@ -22,9 +22,11 @@ /* Some dma direct funcs must be visible for use in other dma_ops */ extern void *dma_direct_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag); + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs); extern void dma_direct_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle); + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs); #ifdef CONFIG_NOT_COHERENT_CACHE @@ -130,23 +132,29 @@ static inline int dma_supported(struct device *dev, u64 mask) extern int dma_set_mask(struct device *dev, u64 dma_mask); -static inline void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) +#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL) + +static inline void *dma_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) { struct dma_map_ops *dma_ops = get_dma_ops(dev); void *cpu_addr; BUG_ON(!dma_ops); - cpu_addr = dma_ops->alloc_coherent(dev, size, dma_handle, flag); + cpu_addr = dma_ops->alloc(dev, size, dma_handle, flag, attrs); debug_dma_alloc_coherent(dev, size, *dma_handle, cpu_addr); return cpu_addr; } -static inline void dma_free_coherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_handle) +#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) + +static inline void dma_free_attrs(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { struct dma_map_ops *dma_ops = get_dma_ops(dev); @@ -154,7 +162,7 @@ static inline void dma_free_coherent(struct device *dev, size_t size, debug_dma_free_coherent(dev, size, cpu_addr, dma_handle); - dma_ops->free_coherent(dev, size, cpu_addr, dma_handle); + dma_ops->free(dev, size, cpu_addr, dma_handle, attrs); } static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c index 3f6464b..bcfdcd2 100644 --- a/arch/powerpc/kernel/dma-iommu.c +++ b/arch/powerpc/kernel/dma-iommu.c @@ -17,7 +17,8 @@ * to the dma address (mapping) of the first page. */ static void *dma_iommu_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) { return iommu_alloc_coherent(dev, get_iommu_table_base(dev), size, dma_handle, dev->coherent_dma_mask, flag, @@ -25,7 +26,8 @@ static void *dma_iommu_alloc_coherent(struct device *dev, size_t size, } static void dma_iommu_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { iommu_free_coherent(get_iommu_table_base(dev), size, vaddr, dma_handle); } @@ -105,8 +107,8 @@ static u64 dma_iommu_get_required_mask(struct device *dev) } struct dma_map_ops dma_iommu_ops = { - .alloc_coherent = dma_iommu_alloc_coherent, - .free_coherent = dma_iommu_free_coherent, + .alloc = dma_iommu_alloc_coherent, + .free = dma_iommu_free_coherent, .map_sg = dma_iommu_map_sg, .unmap_sg = dma_iommu_unmap_sg, .dma_supported = dma_iommu_dma_supported, diff --git a/arch/powerpc/kernel/dma-swiotlb.c b/arch/powerpc/kernel/dma-swiotlb.c index 1ebc918..4ab88da 100644 --- a/arch/powerpc/kernel/dma-swiotlb.c +++ b/arch/powerpc/kernel/dma-swiotlb.c @@ -47,8 +47,8 @@ static u64 swiotlb_powerpc_get_required(struct device *dev) * for everything else. */ struct dma_map_ops swiotlb_dma_ops = { - .alloc_coherent = dma_direct_alloc_coherent, - .free_coherent = dma_direct_free_coherent, + .alloc = dma_direct_alloc_coherent, + .free = dma_direct_free_coherent, .map_sg = swiotlb_map_sg_attrs, .unmap_sg = swiotlb_unmap_sg_attrs, .dma_supported = swiotlb_dma_supported, diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c index 7d0233c..b1ec983 100644 --- a/arch/powerpc/kernel/dma.c +++ b/arch/powerpc/kernel/dma.c @@ -26,7 +26,8 @@ void *dma_direct_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) { void *ret; #ifdef CONFIG_NOT_COHERENT_CACHE @@ -54,7 +55,8 @@ void *dma_direct_alloc_coherent(struct device *dev, size_t size, } void dma_direct_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { #ifdef CONFIG_NOT_COHERENT_CACHE __dma_free_coherent(size, vaddr); @@ -150,8 +152,8 @@ static inline void dma_direct_sync_single(struct device *dev, #endif struct dma_map_ops dma_direct_ops = { - .alloc_coherent = dma_direct_alloc_coherent, - .free_coherent = dma_direct_free_coherent, + .alloc = dma_direct_alloc_coherent, + .free = dma_direct_free_coherent, .map_sg = dma_direct_map_sg, .unmap_sg = dma_direct_unmap_sg, .dma_supported = dma_direct_dma_supported, diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c index d39ae60..716d918 100644 --- a/arch/powerpc/kernel/ibmebus.c +++ b/arch/powerpc/kernel/ibmebus.c @@ -65,7 +65,8 @@ static struct of_device_id __initdata ibmebus_matches[] = { static void *ibmebus_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, - gfp_t flag) + gfp_t flag, + struct dma_attrs *attrs) { void *mem; @@ -77,7 +78,8 @@ static void *ibmebus_alloc_coherent(struct device *dev, static void ibmebus_free_coherent(struct device *dev, size_t size, void *vaddr, - dma_addr_t dma_handle) + dma_addr_t dma_handle, + struct dma_attrs *attrs) { kfree(vaddr); } @@ -136,8 +138,8 @@ static u64 ibmebus_dma_get_required_mask(struct device *dev) } static struct dma_map_ops ibmebus_dma_ops = { - .alloc_coherent = ibmebus_alloc_coherent, - .free_coherent = ibmebus_free_coherent, + .alloc = ibmebus_alloc_coherent, + .free = ibmebus_free_coherent, .map_sg = ibmebus_map_sg, .unmap_sg = ibmebus_unmap_sg, .dma_supported = ibmebus_dma_supported, diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c index 8b08629..2d49c32 100644 --- a/arch/powerpc/kernel/vio.c +++ b/arch/powerpc/kernel/vio.c @@ -487,7 +487,8 @@ static void vio_cmo_balance(struct work_struct *work) } static void *vio_dma_iommu_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) { struct vio_dev *viodev = to_vio_dev(dev); void *ret; @@ -497,7 +498,7 @@ static void *vio_dma_iommu_alloc_coherent(struct device *dev, size_t size, return NULL; } - ret = dma_iommu_ops.alloc_coherent(dev, size, dma_handle, flag); + ret = dma_iommu_ops.alloc(dev, size, dma_handle, flag, attrs); if (unlikely(ret == NULL)) { vio_cmo_dealloc(viodev, roundup(size, PAGE_SIZE)); atomic_inc(&viodev->cmo.allocs_failed); @@ -507,11 +508,12 @@ static void *vio_dma_iommu_alloc_coherent(struct device *dev, size_t size, } static void vio_dma_iommu_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { struct vio_dev *viodev = to_vio_dev(dev); - dma_iommu_ops.free_coherent(dev, size, vaddr, dma_handle); + dma_iommu_ops.free(dev, size, vaddr, dma_handle, attrs); vio_cmo_dealloc(viodev, roundup(size, PAGE_SIZE)); } @@ -612,8 +614,8 @@ static u64 vio_dma_get_required_mask(struct device *dev) } struct dma_map_ops vio_dma_mapping_ops = { - .alloc_coherent = vio_dma_iommu_alloc_coherent, - .free_coherent = vio_dma_iommu_free_coherent, + .alloc = vio_dma_iommu_alloc_coherent, + .free = vio_dma_iommu_free_coherent, .map_sg = vio_dma_iommu_map_sg, .unmap_sg = vio_dma_iommu_unmap_sg, .map_page = vio_dma_iommu_map_page, diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index ae9fc7b..b9f509a 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -564,7 +564,8 @@ static struct iommu_table *cell_get_iommu_table(struct device *dev) /* A coherent allocation implies strong ordering */ static void *dma_fixed_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) { if (iommu_fixed_is_weak) return iommu_alloc_coherent(dev, cell_get_iommu_table(dev), @@ -572,18 +573,19 @@ static void *dma_fixed_alloc_coherent(struct device *dev, size_t size, device_to_mask(dev), flag, dev_to_node(dev)); else - return dma_direct_ops.alloc_coherent(dev, size, dma_handle, - flag); + return dma_direct_ops.alloc(dev, size, dma_handle, flag, + attrs); } static void dma_fixed_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { if (iommu_fixed_is_weak) iommu_free_coherent(cell_get_iommu_table(dev), size, vaddr, dma_handle); else - dma_direct_ops.free_coherent(dev, size, vaddr, dma_handle); + dma_direct_ops.free(dev, size, vaddr, dma_handle, attrs); } static dma_addr_t dma_fixed_map_page(struct device *dev, struct page *page, @@ -642,8 +644,8 @@ static int dma_fixed_dma_supported(struct device *dev, u64 mask) static int dma_set_mask_and_switch(struct device *dev, u64 dma_mask); struct dma_map_ops dma_iommu_fixed_ops = { - .alloc_coherent = dma_fixed_alloc_coherent, - .free_coherent = dma_fixed_free_coherent, + .alloc = dma_fixed_alloc_coherent, + .free = dma_fixed_free_coherent, .map_sg = dma_fixed_map_sg, .unmap_sg = dma_fixed_unmap_sg, .dma_supported = dma_fixed_dma_supported, diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c index 880eb9c..5606fe3 100644 --- a/arch/powerpc/platforms/ps3/system-bus.c +++ b/arch/powerpc/platforms/ps3/system-bus.c @@ -515,7 +515,8 @@ core_initcall(ps3_system_bus_init); * to the dma address (mapping) of the first page. */ static void * ps3_alloc_coherent(struct device *_dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) { int result; struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); @@ -552,7 +553,7 @@ clean_none: } static void ps3_free_coherent(struct device *_dev, size_t size, void *vaddr, - dma_addr_t dma_handle) + dma_addr_t dma_handle, struct dma_attrs *attrs) { struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); @@ -701,8 +702,8 @@ static u64 ps3_dma_get_required_mask(struct device *_dev) } static struct dma_map_ops ps3_sb_dma_ops = { - .alloc_coherent = ps3_alloc_coherent, - .free_coherent = ps3_free_coherent, + .alloc = ps3_alloc_coherent, + .free = ps3_free_coherent, .map_sg = ps3_sb_map_sg, .unmap_sg = ps3_sb_unmap_sg, .dma_supported = ps3_dma_supported, @@ -712,8 +713,8 @@ static struct dma_map_ops ps3_sb_dma_ops = { }; static struct dma_map_ops ps3_ioc0_dma_ops = { - .alloc_coherent = ps3_alloc_coherent, - .free_coherent = ps3_free_coherent, + .alloc = ps3_alloc_coherent, + .free = ps3_free_coherent, .map_sg = ps3_ioc0_map_sg, .unmap_sg = ps3_ioc0_unmap_sg, .dma_supported = ps3_dma_supported, -- cgit v0.10.2 From c416258a6e1e68a33fd328e872007d19941138c5 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 27 Mar 2012 14:56:55 +0200 Subject: SPARC: adapt for dma_map_ops changes Adapt core SPARC architecture code for dma_map_ops changes: replace alloc/free_coherent with generic alloc/free methods. Signed-off-by: Andrzej Pietrasiewicz Acked-by: Kyungmin Park Signed-off-by: Marek Szyprowski Reviewed-by: Arnd Bergmann Acked-by: David S. Miller diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h index 8c0e4f7..48a7c65 100644 --- a/arch/sparc/include/asm/dma-mapping.h +++ b/arch/sparc/include/asm/dma-mapping.h @@ -26,24 +26,30 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev) #include -static inline void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) +#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL) + +static inline void *dma_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) { struct dma_map_ops *ops = get_dma_ops(dev); void *cpu_addr; - cpu_addr = ops->alloc_coherent(dev, size, dma_handle, flag); + cpu_addr = ops->alloc(dev, size, dma_handle, flag, attrs); debug_dma_alloc_coherent(dev, size, *dma_handle, cpu_addr); return cpu_addr; } -static inline void dma_free_coherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_handle) +#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) + +static inline void dma_free_attrs(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { struct dma_map_ops *ops = get_dma_ops(dev); debug_dma_free_coherent(dev, size, cpu_addr, dma_handle); - ops->free_coherent(dev, size, cpu_addr, dma_handle); + ops->free(dev, size, cpu_addr, dma_handle, attrs); } static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c index 4643d68..070ed14 100644 --- a/arch/sparc/kernel/iommu.c +++ b/arch/sparc/kernel/iommu.c @@ -280,7 +280,8 @@ static inline void iommu_free_ctx(struct iommu *iommu, int ctx) } static void *dma_4u_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_addrp, gfp_t gfp) + dma_addr_t *dma_addrp, gfp_t gfp, + struct dma_attrs *attrs) { unsigned long flags, order, first_page; struct iommu *iommu; @@ -330,7 +331,8 @@ static void *dma_4u_alloc_coherent(struct device *dev, size_t size, } static void dma_4u_free_coherent(struct device *dev, size_t size, - void *cpu, dma_addr_t dvma) + void *cpu, dma_addr_t dvma, + struct dma_attrs *attrs) { struct iommu *iommu; unsigned long flags, order, npages; @@ -825,8 +827,8 @@ static void dma_4u_sync_sg_for_cpu(struct device *dev, } static struct dma_map_ops sun4u_dma_ops = { - .alloc_coherent = dma_4u_alloc_coherent, - .free_coherent = dma_4u_free_coherent, + .alloc = dma_4u_alloc_coherent, + .free = dma_4u_free_coherent, .map_page = dma_4u_map_page, .unmap_page = dma_4u_unmap_page, .map_sg = dma_4u_map_sg, diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index d0479e2..21bd739 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -261,7 +261,8 @@ EXPORT_SYMBOL(sbus_set_sbus64); * CPU may access them without any explicit flushing. */ static void *sbus_alloc_coherent(struct device *dev, size_t len, - dma_addr_t *dma_addrp, gfp_t gfp) + dma_addr_t *dma_addrp, gfp_t gfp, + struct dma_attrs *attrs) { struct platform_device *op = to_platform_device(dev); unsigned long len_total = PAGE_ALIGN(len); @@ -315,7 +316,7 @@ err_nopages: } static void sbus_free_coherent(struct device *dev, size_t n, void *p, - dma_addr_t ba) + dma_addr_t ba, struct dma_attrs *attrs) { struct resource *res; struct page *pgv; @@ -407,8 +408,8 @@ static void sbus_sync_sg_for_device(struct device *dev, struct scatterlist *sg, } struct dma_map_ops sbus_dma_ops = { - .alloc_coherent = sbus_alloc_coherent, - .free_coherent = sbus_free_coherent, + .alloc = sbus_alloc_coherent, + .free = sbus_free_coherent, .map_page = sbus_map_page, .unmap_page = sbus_unmap_page, .map_sg = sbus_map_sg, @@ -436,7 +437,8 @@ arch_initcall(sparc_register_ioport); * hwdev should be valid struct pci_dev pointer for PCI devices. */ static void *pci32_alloc_coherent(struct device *dev, size_t len, - dma_addr_t *pba, gfp_t gfp) + dma_addr_t *pba, gfp_t gfp, + struct dma_attrs *attrs) { unsigned long len_total = PAGE_ALIGN(len); void *va; @@ -489,7 +491,7 @@ err_nopages: * past this call are illegal. */ static void pci32_free_coherent(struct device *dev, size_t n, void *p, - dma_addr_t ba) + dma_addr_t ba, struct dma_attrs *attrs) { struct resource *res; @@ -645,8 +647,8 @@ static void pci32_sync_sg_for_device(struct device *device, struct scatterlist * } struct dma_map_ops pci32_dma_ops = { - .alloc_coherent = pci32_alloc_coherent, - .free_coherent = pci32_free_coherent, + .alloc = pci32_alloc_coherent, + .free = pci32_free_coherent, .map_page = pci32_map_page, .unmap_page = pci32_unmap_page, .map_sg = pci32_map_sg, diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c index af5755d..7661e84 100644 --- a/arch/sparc/kernel/pci_sun4v.c +++ b/arch/sparc/kernel/pci_sun4v.c @@ -128,7 +128,8 @@ static inline long iommu_batch_end(void) } static void *dma_4v_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_addrp, gfp_t gfp) + dma_addr_t *dma_addrp, gfp_t gfp, + struct dma_attrs *attrs) { unsigned long flags, order, first_page, npages, n; struct iommu *iommu; @@ -198,7 +199,7 @@ range_alloc_fail: } static void dma_4v_free_coherent(struct device *dev, size_t size, void *cpu, - dma_addr_t dvma) + dma_addr_t dvma, struct dma_attrs *attrs) { struct pci_pbm_info *pbm; struct iommu *iommu; @@ -527,8 +528,8 @@ static void dma_4v_unmap_sg(struct device *dev, struct scatterlist *sglist, } static struct dma_map_ops sun4v_dma_ops = { - .alloc_coherent = dma_4v_alloc_coherent, - .free_coherent = dma_4v_free_coherent, + .alloc = dma_4v_alloc_coherent, + .free = dma_4v_free_coherent, .map_page = dma_4v_map_page, .unmap_page = dma_4v_unmap_page, .map_sg = dma_4v_map_sg, -- cgit v0.10.2 From 4ce9a91f344d08640ea6e9a6eba0c1b4641ab6a1 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Thu, 22 Dec 2011 13:58:21 +0100 Subject: Alpha: adapt for dma_map_ops changes Adapt core Alpha architecture code for dma_map_ops changes: replace alloc/free_coherent with generic alloc/free methods. Signed-off-by: Andrzej Pietrasiewicz Acked-by: Kyungmin Park Signed-off-by: Marek Szyprowski Reviewed-by: Arnd Bergmann Acked-by: Matt Turner diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h index 4567aca..dfa32f0 100644 --- a/arch/alpha/include/asm/dma-mapping.h +++ b/arch/alpha/include/asm/dma-mapping.h @@ -12,16 +12,22 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev) #include -static inline void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp) +#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL) + +static inline void *dma_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t gfp, + struct dma_attrs *attrs) { - return get_dma_ops(dev)->alloc_coherent(dev, size, dma_handle, gfp); + return get_dma_ops(dev)->alloc(dev, size, dma_handle, gfp, attrs); } -static inline void dma_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) +#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) + +static inline void dma_free_attrs(struct device *dev, size_t size, + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { - get_dma_ops(dev)->free_coherent(dev, size, vaddr, dma_handle); + get_dma_ops(dev)->free(dev, size, vaddr, dma_handle, attrs); } static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c index 04eea48..df24b76 100644 --- a/arch/alpha/kernel/pci-noop.c +++ b/arch/alpha/kernel/pci-noop.c @@ -108,7 +108,8 @@ sys_pciconfig_write(unsigned long bus, unsigned long dfn, } static void *alpha_noop_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp) + dma_addr_t *dma_handle, gfp_t gfp, + struct dma_attrs *attrs) { void *ret; @@ -123,7 +124,8 @@ static void *alpha_noop_alloc_coherent(struct device *dev, size_t size, } static void alpha_noop_free_coherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_addr) + void *cpu_addr, dma_addr_t dma_addr, + struct dma_attrs *attrs) { free_pages((unsigned long)cpu_addr, get_order(size)); } @@ -174,8 +176,8 @@ static int alpha_noop_set_mask(struct device *dev, u64 mask) } struct dma_map_ops alpha_noop_ops = { - .alloc_coherent = alpha_noop_alloc_coherent, - .free_coherent = alpha_noop_free_coherent, + .alloc = alpha_noop_alloc_coherent, + .free = alpha_noop_free_coherent, .map_page = alpha_noop_map_page, .map_sg = alpha_noop_map_sg, .mapping_error = alpha_noop_mapping_error, diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c index 4361080..cd63479 100644 --- a/arch/alpha/kernel/pci_iommu.c +++ b/arch/alpha/kernel/pci_iommu.c @@ -434,7 +434,8 @@ static void alpha_pci_unmap_page(struct device *dev, dma_addr_t dma_addr, else DMA_ADDRP is undefined. */ static void *alpha_pci_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_addrp, gfp_t gfp) + dma_addr_t *dma_addrp, gfp_t gfp, + struct dma_attrs *attrs) { struct pci_dev *pdev = alpha_gendev_to_pci(dev); void *cpu_addr; @@ -478,7 +479,8 @@ try_again: DMA_ADDR past this call are illegal. */ static void alpha_pci_free_coherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_addr) + void *cpu_addr, dma_addr_t dma_addr, + struct dma_attrs *attrs) { struct pci_dev *pdev = alpha_gendev_to_pci(dev); pci_unmap_single(pdev, dma_addr, size, PCI_DMA_BIDIRECTIONAL); @@ -952,8 +954,8 @@ static int alpha_pci_set_mask(struct device *dev, u64 mask) } struct dma_map_ops alpha_pci_ops = { - .alloc_coherent = alpha_pci_alloc_coherent, - .free_coherent = alpha_pci_free_coherent, + .alloc = alpha_pci_alloc_coherent, + .free = alpha_pci_free_coherent, .map_page = alpha_pci_map_page, .unmap_page = alpha_pci_unmap_page, .map_sg = alpha_pci_map_sg, -- cgit v0.10.2 From 552c0d3ea68df46646d1f0dfcbf92a133c4e792b Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Wed, 14 Dec 2011 12:11:13 +0100 Subject: SH: adapt for dma_map_ops changes Adapt core SH architecture code for dma_map_ops changes: replace alloc/free_coherent with generic alloc/free methods. Signed-off-by: Andrzej Pietrasiewicz Acked-by: Kyungmin Park Signed-off-by: Marek Szyprowski Reviewed-by: Arnd Bergmann Acked-by: Paul Mundt diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h index 1a73c3e..8bd965e 100644 --- a/arch/sh/include/asm/dma-mapping.h +++ b/arch/sh/include/asm/dma-mapping.h @@ -52,25 +52,31 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) return dma_addr == 0; } -static inline void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp) +#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL) + +static inline void *dma_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t gfp, + struct dma_attrs *attrs) { struct dma_map_ops *ops = get_dma_ops(dev); void *memory; if (dma_alloc_from_coherent(dev, size, dma_handle, &memory)) return memory; - if (!ops->alloc_coherent) + if (!ops->alloc) return NULL; - memory = ops->alloc_coherent(dev, size, dma_handle, gfp); + memory = ops->alloc(dev, size, dma_handle, gfp, attrs); debug_dma_alloc_coherent(dev, size, *dma_handle, memory); return memory; } -static inline void dma_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) +#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) + +static inline void dma_free_attrs(struct device *dev, size_t size, + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { struct dma_map_ops *ops = get_dma_ops(dev); @@ -78,14 +84,16 @@ static inline void dma_free_coherent(struct device *dev, size_t size, return; debug_dma_free_coherent(dev, size, vaddr, dma_handle); - if (ops->free_coherent) - ops->free_coherent(dev, size, vaddr, dma_handle); + if (ops->free) + ops->free(dev, size, vaddr, dma_handle, attrs); } /* arch/sh/mm/consistent.c */ extern void *dma_generic_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_addr, gfp_t flag); + dma_addr_t *dma_addr, gfp_t flag, + struct dma_attrs *attrs); extern void dma_generic_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle); + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs); #endif /* __ASM_SH_DMA_MAPPING_H */ diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c index 3c55b87..5b0bfcd 100644 --- a/arch/sh/kernel/dma-nommu.c +++ b/arch/sh/kernel/dma-nommu.c @@ -63,8 +63,8 @@ static void nommu_sync_sg(struct device *dev, struct scatterlist *sg, #endif struct dma_map_ops nommu_dma_ops = { - .alloc_coherent = dma_generic_alloc_coherent, - .free_coherent = dma_generic_free_coherent, + .alloc = dma_generic_alloc_coherent, + .free = dma_generic_free_coherent, .map_page = nommu_map_page, .map_sg = nommu_map_sg, #ifdef CONFIG_DMA_NONCOHERENT diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c index f251b5f..b81d9db 100644 --- a/arch/sh/mm/consistent.c +++ b/arch/sh/mm/consistent.c @@ -33,7 +33,8 @@ static int __init dma_init(void) fs_initcall(dma_init); void *dma_generic_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp) + dma_addr_t *dma_handle, gfp_t gfp, + struct dma_attrs *attrs) { void *ret, *ret_nocache; int order = get_order(size); @@ -64,7 +65,8 @@ void *dma_generic_alloc_coherent(struct device *dev, size_t size, } void dma_generic_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { int order = get_order(size); unsigned long pfn = dma_handle >> PAGE_SHIFT; -- cgit v0.10.2 From 988624ec13e87680eb3eaa0f1e921fedd48b4ac4 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 27 Mar 2012 14:56:04 +0200 Subject: Microblaze: adapt for dma_map_ops changes Adapt core Microblaze architecture code for dma_map_ops changes: replace alloc/free_coherent with generic alloc/free methods. Signed-off-by: Andrzej Pietrasiewicz Acked-by: Kyungmin Park [fixed coding style issues] Signed-off-by: Marek Szyprowski Reviewed-by: Arnd Bergmann diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h index 3a3e5b8..01d2282 100644 --- a/arch/microblaze/include/asm/dma-mapping.h +++ b/arch/microblaze/include/asm/dma-mapping.h @@ -123,28 +123,34 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) #define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) -static inline void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) +#define dma_alloc_coherent(d, s, h, f) dma_alloc_attrs(d, s, h, f, NULL) + +static inline void *dma_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) { struct dma_map_ops *ops = get_dma_ops(dev); void *memory; BUG_ON(!ops); - memory = ops->alloc_coherent(dev, size, dma_handle, flag); + memory = ops->alloc(dev, size, dma_handle, flag, attrs); debug_dma_alloc_coherent(dev, size, *dma_handle, memory); return memory; } -static inline void dma_free_coherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_handle) +#define dma_free_coherent(d,s,c,h) dma_free_attrs(d, s, c, h, NULL) + +static inline void dma_free_attrs(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { struct dma_map_ops *ops = get_dma_ops(dev); BUG_ON(!ops); debug_dma_free_coherent(dev, size, cpu_addr, dma_handle); - ops->free_coherent(dev, size, cpu_addr, dma_handle); + ops->free(dev, size, cpu_addr, dma_handle, attrs); } static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c index 65a4af4..a2bfa2c 100644 --- a/arch/microblaze/kernel/dma.c +++ b/arch/microblaze/kernel/dma.c @@ -33,7 +33,8 @@ static unsigned long get_dma_direct_offset(struct device *dev) #define NOT_COHERENT_CACHE static void *dma_direct_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) { #ifdef NOT_COHERENT_CACHE return consistent_alloc(flag, size, dma_handle); @@ -57,7 +58,8 @@ static void *dma_direct_alloc_coherent(struct device *dev, size_t size, } static void dma_direct_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { #ifdef NOT_COHERENT_CACHE consistent_free(size, vaddr); @@ -176,8 +178,8 @@ dma_direct_sync_sg_for_device(struct device *dev, } struct dma_map_ops dma_direct_ops = { - .alloc_coherent = dma_direct_alloc_coherent, - .free_coherent = dma_direct_free_coherent, + .alloc = dma_direct_alloc_coherent, + .free = dma_direct_free_coherent, .map_sg = dma_direct_map_sg, .unmap_sg = dma_direct_unmap_sg, .dma_supported = dma_direct_dma_supported, -- cgit v0.10.2 From ffc4a3faf74f00b568393b83e08104c70f33869c Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 27 Mar 2012 14:48:45 +0200 Subject: Unicore32: adapt for dma_map_ops changes Adapt core Unicore32 architecture code for dma_map_ops changes: replace alloc/free_coherent with generic alloc/free methods. Signed-off-by: Andrzej Pietrasiewicz Acked-by: Kyungmin Park [added swiotlb_alloc/free_coherent wrappers] Signed-off-by: Marek Szyprowski Reviewed-by: Arnd Bergmann diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h index 9258e59..366460a 100644 --- a/arch/unicore32/include/asm/dma-mapping.h +++ b/arch/unicore32/include/asm/dma-mapping.h @@ -82,20 +82,26 @@ static inline int dma_set_mask(struct device *dev, u64 dma_mask) return 0; } -static inline void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) +#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL) + +static inline void *dma_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) { struct dma_map_ops *dma_ops = get_dma_ops(dev); - return dma_ops->alloc_coherent(dev, size, dma_handle, flag); + return dma_ops->alloc(dev, size, dma_handle, flag, attrs); } -static inline void dma_free_coherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_handle) +#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) + +static inline void dma_free_attrs(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { struct dma_map_ops *dma_ops = get_dma_ops(dev); - dma_ops->free_coherent(dev, size, cpu_addr, dma_handle); + dma_ops->free(dev, size, cpu_addr, dma_handle, attrs); } #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) diff --git a/arch/unicore32/mm/dma-swiotlb.c b/arch/unicore32/mm/dma-swiotlb.c index bfa9fbb..16c08b2 100644 --- a/arch/unicore32/mm/dma-swiotlb.c +++ b/arch/unicore32/mm/dma-swiotlb.c @@ -17,9 +17,23 @@ #include +static void *unicore_swiotlb_alloc_coherent(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flags, + struct dma_attrs *attrs) +{ + return swiotlb_alloc_coherent(dev, size, dma_handle, flags); +} + +static void unicore_swiotlb_free_coherent(struct device *dev, size_t size, + void *vaddr, dma_addr_t dma_addr, + struct dma_attrs *attrs) +{ + swiotlb_free_coherent(dev, size, vaddr, dma_addr); +} + struct dma_map_ops swiotlb_dma_map_ops = { - .alloc_coherent = swiotlb_alloc_coherent, - .free_coherent = swiotlb_free_coherent, + .alloc = unicore_swiotlb_alloc_coherent, + .free = unicore_swiotlb_free_coherent, .map_sg = swiotlb_map_sg_attrs, .unmap_sg = swiotlb_unmap_sg_attrs, .dma_supported = swiotlb_dma_supported, -- cgit v0.10.2 From 77345520c465ccb85e4ed2c8ba352a159f60c2e4 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Mon, 13 Feb 2012 10:31:31 +0100 Subject: Hexagon: adapt for dma_map_ops changes Adapt core Hexagon architecture code for dma_map_ops changes: replace alloc/free_coherent with generic alloc/free methods. Signed-off-by: Marek Szyprowski Acked-by: Kyungmin Park Reviewed-by: Arnd Bergmann Acked-by: Richard Kuo diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h index 448b224..233ed3d 100644 --- a/arch/hexagon/include/asm/dma-mapping.h +++ b/arch/hexagon/include/asm/dma-mapping.h @@ -71,29 +71,35 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) return (dma_addr == bad_dma_address); } -static inline void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) +#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL) + +static inline void *dma_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) { void *ret; struct dma_map_ops *ops = get_dma_ops(dev); BUG_ON(!dma_ops); - ret = ops->alloc_coherent(dev, size, dma_handle, flag); + ret = ops->alloc(dev, size, dma_handle, flag, attrs); debug_dma_alloc_coherent(dev, size, *dma_handle, ret); return ret; } -static inline void dma_free_coherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_handle) +#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) + +static inline void dma_free_attrs(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { struct dma_map_ops *dma_ops = get_dma_ops(dev); BUG_ON(!dma_ops); - dma_ops->free_coherent(dev, size, cpu_addr, dma_handle); + dma_ops->free(dev, size, cpu_addr, dma_handle, attrs); debug_dma_free_coherent(dev, size, cpu_addr, dma_handle); } diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c index e711ace..3730221 100644 --- a/arch/hexagon/kernel/dma.c +++ b/arch/hexagon/kernel/dma.c @@ -54,7 +54,8 @@ static struct gen_pool *coherent_pool; /* Allocates from a pool of uncached memory that was reserved at boot time */ void *hexagon_dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_addr, gfp_t flag) + dma_addr_t *dma_addr, gfp_t flag, + struct dma_attrs *attrs) { void *ret; @@ -81,7 +82,7 @@ void *hexagon_dma_alloc_coherent(struct device *dev, size_t size, } static void hexagon_free_coherent(struct device *dev, size_t size, void *vaddr, - dma_addr_t dma_addr) + dma_addr_t dma_addr, struct dma_attrs *attrs) { gen_pool_free(coherent_pool, (unsigned long) vaddr, size); } @@ -202,8 +203,8 @@ static void hexagon_sync_single_for_device(struct device *dev, } struct dma_map_ops hexagon_dma_ops = { - .alloc_coherent = hexagon_dma_alloc_coherent, - .free_coherent = hexagon_free_coherent, + .alloc = hexagon_dma_alloc_coherent, + .free = hexagon_free_coherent, .map_sg = hexagon_map_sg, .map_page = hexagon_map_page, .sync_single_for_cpu = hexagon_sync_single_for_cpu, -- cgit v0.10.2 From 645ae3bce3e62541f8dc2701dde2a2791d842b6c Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Wed, 21 Dec 2011 16:55:57 +0100 Subject: common: dma-mapping: remove old alloc_coherent and free_coherent methods Remove old, unused alloc_coherent and free_coherent methods from dma_map_ops structure. Signed-off-by: Marek Szyprowski Acked-by: Kyungmin Park Reviewed-by: Arnd Bergmann diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index 8cc7f95..2fc413a 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -9,10 +9,6 @@ #include struct dma_map_ops { - void* (*alloc_coherent)(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp); - void (*free_coherent)(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle); void* (*alloc)(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t gfp, struct dma_attrs *attrs); -- cgit v0.10.2 From 9adc537452e1e341cabd39a02d4788d3c510b0e2 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Wed, 21 Dec 2011 16:55:33 +0100 Subject: common: dma-mapping: introduce mmap method Introduce new generic mmap method with attributes argument. This method lets drivers to create a userspace mapping for a DMA buffer in generic, architecture independent way. Signed-off-by: Marek Szyprowski Acked-by: Kyungmin Park Reviewed-by: Arnd Bergmann diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index 2fc413a..b903a20 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -15,6 +15,9 @@ struct dma_map_ops { void (*free)(struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle, struct dma_attrs *attrs); + int (*mmap)(struct device *, struct vm_area_struct *, + void *, dma_addr_t, size_t, struct dma_attrs *attrs); + dma_addr_t (*map_page)(struct device *dev, struct page *page, unsigned long offset, size_t size, enum dma_data_direction dir, -- cgit v0.10.2 From 8a4134322bd429d24f71147eb59a47a981e8f63a Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Fri, 23 Dec 2011 09:30:47 +0100 Subject: common: DMA-mapping: add WRITE_COMBINE attribute DMA_ATTR_WRITE_COMBINE specifies that writes to the mapping may be buffered to improve performance. It will be used by the replacement for ARM/ARV32 specific dma_alloc_writecombine() function. Signed-off-by: Marek Szyprowski Acked-by: Kyungmin Park Reviewed-by: Arnd Bergmann diff --git a/Documentation/DMA-attributes.txt b/Documentation/DMA-attributes.txt index b768cc0..811a5d4 100644 --- a/Documentation/DMA-attributes.txt +++ b/Documentation/DMA-attributes.txt @@ -31,3 +31,13 @@ may be weakly ordered, that is that reads and writes may pass each other. Since it is optional for platforms to implement DMA_ATTR_WEAK_ORDERING, those that do not will simply ignore the attribute and exhibit default behavior. + +DMA_ATTR_WRITE_COMBINE +---------------------- + +DMA_ATTR_WRITE_COMBINE specifies that writes to the mapping may be +buffered to improve performance. + +Since it is optional for platforms to implement DMA_ATTR_WRITE_COMBINE, +those that do not will simply ignore the attribute and exhibit default +behavior. diff --git a/include/linux/dma-attrs.h b/include/linux/dma-attrs.h index 71ad34e..ada61e1 100644 --- a/include/linux/dma-attrs.h +++ b/include/linux/dma-attrs.h @@ -13,6 +13,7 @@ enum dma_attr { DMA_ATTR_WRITE_BARRIER, DMA_ATTR_WEAK_ORDERING, + DMA_ATTR_WRITE_COMBINE, DMA_ATTR_MAX, }; -- cgit v0.10.2 From 64d70fe5d3640e1a89790ed21120921278f8cb86 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Wed, 28 Mar 2012 07:55:56 +0200 Subject: common: DMA-mapping: add NON-CONSISTENT attribute DMA_ATTR_NON_CONSISTENT lets the platform to choose to return either consistent or non-consistent memory as it sees fit. By using this API, you are guaranteeing to the platform that you have all the correct and necessary sync points for this memory in the driver. Signed-off-by: Marek Szyprowski Acked-by: Kyungmin Park Reviewed-by: Arnd Bergmann diff --git a/Documentation/DMA-attributes.txt b/Documentation/DMA-attributes.txt index 811a5d4..5c72eed 100644 --- a/Documentation/DMA-attributes.txt +++ b/Documentation/DMA-attributes.txt @@ -41,3 +41,11 @@ buffered to improve performance. Since it is optional for platforms to implement DMA_ATTR_WRITE_COMBINE, those that do not will simply ignore the attribute and exhibit default behavior. + +DMA_ATTR_NON_CONSISTENT +----------------------- + +DMA_ATTR_NON_CONSISTENT lets the platform to choose to return either +consistent or non-consistent memory as it sees fit. By using this API, +you are guaranteeing to the platform that you have all the correct and +necessary sync points for this memory in the driver. diff --git a/include/linux/dma-attrs.h b/include/linux/dma-attrs.h index ada61e1..547ab56 100644 --- a/include/linux/dma-attrs.h +++ b/include/linux/dma-attrs.h @@ -14,6 +14,7 @@ enum dma_attr { DMA_ATTR_WRITE_BARRIER, DMA_ATTR_WEAK_ORDERING, DMA_ATTR_WRITE_COMBINE, + DMA_ATTR_NON_CONSISTENT, DMA_ATTR_MAX, }; -- cgit v0.10.2 From 3f17790c2d8524c3ddc4946bd716714becf079e1 Mon Sep 17 00:00:00 2001 From: Hemant Gupta Date: Wed, 28 Mar 2012 17:09:09 +0530 Subject: Bluetooth: Use correct flags for checking HCI_SSP_ENABLED bit This patch uses the correct flags for checking the HCI_SSP_ENABLED bit. Without this authentication request was not being initiated. Signed-off-by: Hemant Gupta Acked-by: Marcel Holtmann Signed-off-by: Johan Hedberg diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index daefaac..8e10328 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -427,7 +427,7 @@ enum { static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) { struct hci_dev *hdev = conn->hdev; - return (test_bit(HCI_SSP_ENABLED, &hdev->flags) && + return (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) && test_bit(HCI_CONN_SSP_ENABLED, &conn->flags)); } -- cgit v0.10.2 From 6e4aff103774d6ee937a1dba9b1b4bf89100e7f6 Mon Sep 17 00:00:00 2001 From: Santosh Nayak Date: Thu, 1 Mar 2012 22:46:36 +0530 Subject: Bluetooth: Fix Endian Bug. Fix network to host endian conversion for L2CAP chan id. Signed-off-by: Santosh Nayak Acked-by: Andrei Emeltchenko Signed-off-by: Gustavo F. Padovan diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c index c4fe583..29122ed 100644 --- a/net/bluetooth/l2cap_sock.c +++ b/net/bluetooth/l2cap_sock.c @@ -82,7 +82,7 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen) } if (la.l2_cid) - err = l2cap_add_scid(chan, la.l2_cid); + err = l2cap_add_scid(chan, __le16_to_cpu(la.l2_cid)); else err = l2cap_add_psm(chan, &la.l2_bdaddr, la.l2_psm); @@ -123,7 +123,8 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, int al if (la.l2_cid && la.l2_psm) return -EINVAL; - err = l2cap_chan_connect(chan, la.l2_psm, la.l2_cid, &la.l2_bdaddr); + err = l2cap_chan_connect(chan, la.l2_psm, __le16_to_cpu(la.l2_cid), + &la.l2_bdaddr); if (err) return err; -- cgit v0.10.2 From 6dfc326f0605fd87e4c10ccde10de0ce4280d72d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jo=C3=A3o=20Paulo=20Rechi=20Vita?= Date: Wed, 14 Mar 2012 21:45:16 +0200 Subject: Bluetooth: btusb: Add USB device ID "0a5c 21e8" MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit One more vendor-specific ID for BCM20702A0. T: Bus=01 Lev=03 Prnt=05 Port=02 Cnt=01 Dev#= 9 Spd=12 MxCh= 0 D: Ver= 2.00 Cls=ff(vend.) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0a5c ProdID=21e8 Rev=01.12 S: Manufacturer=Broadcom Corp S: Product=BCM20702A0 S: SerialNumber=00027221F4E2 C: #Ifs= 4 Cfg#= 1 Atr=e0 MxPwr=0mA I: If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none) I: If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none) I: If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none) I: If#= 3 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=01 Driver=(none) Signed-off-by: João Paulo Rechi Vita Acked-by: Gustavo F. Padovan Signed-off-by: Johan Hedberg diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 480cad9..b633854 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -103,6 +103,7 @@ static struct usb_device_id btusb_table[] = { /* Broadcom BCM20702A0 */ { USB_DEVICE(0x0a5c, 0x21e3) }, { USB_DEVICE(0x0a5c, 0x21e6) }, + { USB_DEVICE(0x0a5c, 0x21e8) }, { USB_DEVICE(0x0a5c, 0x21f3) }, { USB_DEVICE(0x413c, 0x8197) }, -- cgit v0.10.2 From 07c0ea874d43c299d185948452945a361052b6e3 Mon Sep 17 00:00:00 2001 From: "Cho, Yu-Chen" Date: Wed, 14 Mar 2012 22:01:21 +0200 Subject: Bluetooth: Add Atheros maryann PIDVID support Add Atheros maryann 0cf3:311d PIDVID support This module is AR3012 Series. Include /sys/kernel/debug/usb/devices output here for reference before: T: Bus=04 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 2 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0cf3 ProdID=311d Rev= 0.01 S: Manufacturer=Atheros Communications S: Product=Bluetooth USB Host Controller S: SerialNumber=Alaska Day 2006 C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms after: T: Bus=04 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 2 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0cf3 ProdID=311d Rev= 0.02 S: Manufacturer=Atheros Communications S: Product=Bluetooth USB Host Controller S: SerialNumber=Alaska Day 2006 C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms Signed-off-by: Cho, Yu-Chen cked-by: Marcel Holtmann Signed-off-by: Johan Hedberg diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c index 4844247..fa65913 100644 --- a/drivers/bluetooth/ath3k.c +++ b/drivers/bluetooth/ath3k.c @@ -72,6 +72,7 @@ static struct usb_device_id ath3k_table[] = { /* Atheros AR3012 with sflash firmware*/ { USB_DEVICE(0x0CF3, 0x3004) }, + { USB_DEVICE(0x0CF3, 0x311D) }, { USB_DEVICE(0x13d3, 0x3375) }, /* Atheros AR5BBU12 with sflash firmware */ @@ -89,6 +90,7 @@ static struct usb_device_id ath3k_blist_tbl[] = { /* Atheros AR3012 with sflash firmware*/ { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, { } /* Terminating entry */ diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index b633854..9a5d811 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -130,6 +130,7 @@ static struct usb_device_id blacklist_table[] = { /* Atheros 3012 with sflash firmware */ { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, /* Atheros AR5BBU12 with sflash firmware */ -- cgit v0.10.2 From 33b69bf80a3704d45341928e4ff68b6ebd470686 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 15 Mar 2012 14:48:40 +0100 Subject: Bluetooth: hci_ldisc: fix NULL-pointer dereference on tty_close Do not close protocol driver until device has been unregistered. This fixes a race between tty_close and hci_dev_open which can result in a NULL-pointer dereference. The line discipline closes the protocol driver while we may still have hci_dev_open sleeping on the req_lock mutex resulting in a NULL-pointer dereference when lock is acquired and hci_init_req called. Bug is 100% reproducible using hciattach and a disconnected serial port: 0. # hciattach -n ttyO1 any noflow 1. hci_dev_open called from hci_power_on grabs req lock 2. hci_init_req executes but device fails to initialise (times out eventually) 3. hci_dev_open is called from hci_sock_ioctl and sleeps on req lock 4. hci_uart_tty_close detaches protocol driver and cancels init req 5. hci_dev_open (1) releases req lock 6. hci_dev_open (3) grabs req lock, calls hci_init_req, which triggers oops when request is prepared in hci_uart_send_frame [ 137.201263] Unable to handle kernel NULL pointer dereference at virtual address 00000028 [ 137.209838] pgd = c0004000 [ 137.212677] [00000028] *pgd=00000000 [ 137.216430] Internal error: Oops: 17 [#1] [ 137.220642] Modules linked in: [ 137.223846] CPU: 0 Tainted: G W (3.3.0-rc6-dirty #406) [ 137.230529] PC is at __lock_acquire+0x5c/0x1ab0 [ 137.235290] LR is at lock_acquire+0x9c/0x128 [ 137.239776] pc : [] lr : [] psr: 20000093 [ 137.239776] sp : cf869dd8 ip : c0529554 fp : c051c730 [ 137.251800] r10: 00000000 r9 : cf8673c0 r8 : 00000080 [ 137.257293] r7 : 00000028 r6 : 00000002 r5 : 00000000 r4 : c053fd70 [ 137.264129] r3 : 00000000 r2 : 00000000 r1 : 00000000 r0 : 00000001 [ 137.270965] Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel [ 137.278717] Control: 10c5387d Table: 8f0f4019 DAC: 00000015 [ 137.284729] Process kworker/u:1 (pid: 7, stack limit = 0xcf8682e8) [ 137.291229] Stack: (0xcf869dd8 to 0xcf86a000) [ 137.295776] 9dc0: c0529554 00000000 [ 137.304351] 9de0: cf8673c0 cf868000 d03ea1ef cf868000 000001ef 00000470 00000000 00000002 [ 137.312927] 9e00: cf8673c0 00000001 c051c730 c00716ec 0000000c 00000440 c0529554 00000001 [ 137.321533] 9e20: c051c730 cf868000 d03ea1f3 00000000 c053b978 00000000 00000028 cf868000 [ 137.330078] 9e40: 00000000 00000000 00000002 00000000 00000000 c00733f8 00000002 00000080 [ 137.338684] 9e60: 00000000 c02a1d50 00000000 00000001 60000013 c0969a1c 60000093 c053b96c [ 137.347259] 9e80: 00000002 00000018 20000013 c02a1d50 cf0ac000 00000000 00000002 cf868000 [ 137.355834] 9ea0: 00000089 c0374130 00000002 00000000 c02a1d50 cf0ac000 0000000c cf0fc540 [ 137.364410] 9ec0: 00000018 c02a1d50 cf0fc540 00000000 cf0fc540 c0282238 c028220c cf178d80 [ 137.372985] 9ee0: 127525d8 c02821cc 9a1fa451 c032727c 9a1fa451 127525d8 cf0fc540 cf0ac4ec [ 137.381561] 9f00: cf0ac000 cf0fc540 cf0ac584 c03285f4 c0328580 cf0ac4ec cf85c740 c05510cc [ 137.390136] 9f20: ce825400 c004c914 00000002 00000000 c004c884 ce8254f5 cf869f48 00000000 [ 137.398712] 9f40: c0328580 ce825415 c0a7f914 c061af64 00000000 c048cf3c cf8673c0 cf85c740 [ 137.407287] 9f60: c05510cc c051a66c c05510ec c05510c4 cf85c750 cf868000 00000089 c004d6ac [ 137.415863] 9f80: 00000000 c0073d14 00000001 cf853ed8 cf85c740 c004d558 00000013 00000000 [ 137.424438] 9fa0: 00000000 00000000 00000000 c00516b0 00000000 00000000 cf85c740 00000000 [ 137.433013] 9fc0: 00000001 dead4ead ffffffff ffffffff c0551674 00000000 00000000 c0450aa4 [ 137.441589] 9fe0: cf869fe0 cf869fe0 cf853ed8 c005162c c0013b30 c0013b30 00ffff00 00ffff00 [ 137.450164] [] (__lock_acquire+0x5c/0x1ab0) from [] (lock_acquire+0x9c/0x128) [ 137.459503] [] (lock_acquire+0x9c/0x128) from [] (_raw_spin_lock_irqsave+0x44/0x58) [ 137.469360] [] (_raw_spin_lock_irqsave+0x44/0x58) from [] (skb_queue_tail+0x18/0x48) [ 137.479339] [] (skb_queue_tail+0x18/0x48) from [] (h4_enqueue+0x2c/0x34) [ 137.488189] [] (h4_enqueue+0x2c/0x34) from [] (hci_uart_send_frame+0x34/0x68) [ 137.497497] [] (hci_uart_send_frame+0x34/0x68) from [] (hci_send_frame+0x50/0x88) [ 137.507171] [] (hci_send_frame+0x50/0x88) from [] (hci_cmd_work+0x74/0xd4) [ 137.516204] [] (hci_cmd_work+0x74/0xd4) from [] (process_one_work+0x1a0/0x4ec) [ 137.525604] [] (process_one_work+0x1a0/0x4ec) from [] (worker_thread+0x154/0x344) [ 137.535278] [] (worker_thread+0x154/0x344) from [] (kthread+0x84/0x90) [ 137.543975] [] (kthread+0x84/0x90) from [] (kernel_thread_exit+0x0/0x8) [ 137.552734] Code: e59f4e5c e5941000 e3510000 0a000031 (e5971000) [ 137.559234] ---[ end trace 1b75b31a2719ed1e ]--- Cc: stable Signed-off-by: Johan Hovold Acked-by: Marcel Holtmann Signed-off-by: Johan Hedberg diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c index fd5adb4..98a8c05 100644 --- a/drivers/bluetooth/hci_ldisc.c +++ b/drivers/bluetooth/hci_ldisc.c @@ -299,11 +299,11 @@ static void hci_uart_tty_close(struct tty_struct *tty) hci_uart_close(hdev); if (test_and_clear_bit(HCI_UART_PROTO_SET, &hu->flags)) { - hu->proto->close(hu); if (hdev) { hci_unregister_dev(hdev); hci_free_dev(hdev); } + hu->proto->close(hu); } kfree(hu); -- cgit v0.10.2 From 94324962066231a938564bebad0f941cd2d06bb2 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 15 Mar 2012 14:48:41 +0100 Subject: Bluetooth: hci_core: fix NULL-pointer dereference at unregister Make sure hci_dev_open returns immediately if hci_dev_unregister has been called. This fixes a race between hci_dev_open and hci_dev_unregister which can lead to a NULL-pointer dereference. Bug is 100% reproducible using hciattach and a disconnected serial port: 0. # hciattach -n /dev/ttyO1 any noflow 1. hci_dev_open called from hci_power_on grabs req lock 2. hci_init_req executes but device fails to initialise (times out eventually) 3. hci_dev_open is called from hci_sock_ioctl and sleeps on req lock 4. hci_uart_tty_close calls hci_dev_unregister and sleeps on req lock in hci_dev_do_close 5. hci_dev_open (1) releases req lock 6. hci_dev_do_close grabs req lock and returns as device is not up 7. hci_dev_unregister sleeps in destroy_workqueue 8. hci_dev_open (3) grabs req lock, calls hci_init_req and eventually sleeps 9. hci_dev_unregister finishes, while hci_dev_open is still running... [ 79.627136] INFO: trying to register non-static key. [ 79.632354] the code is fine but needs lockdep annotation. [ 79.638122] turning off the locking correctness validator. [ 79.643920] [] (unwind_backtrace+0x0/0xf8) from [] (__lock_acquire+0x1590/0x1ab0) [ 79.653594] [] (__lock_acquire+0x1590/0x1ab0) from [] (lock_acquire+0x9c/0x128) [ 79.663085] [] (lock_acquire+0x9c/0x128) from [] (run_timer_softirq+0x150/0x3ac) [ 79.672668] [] (run_timer_softirq+0x150/0x3ac) from [] (__do_softirq+0xd4/0x22c) [ 79.682281] [] (__do_softirq+0xd4/0x22c) from [] (irq_exit+0x8c/0x94) [ 79.690856] [] (irq_exit+0x8c/0x94) from [] (handle_IRQ+0x34/0x84) [ 79.699157] [] (handle_IRQ+0x34/0x84) from [] (omap3_intc_handle_irq+0x48/0x4c) [ 79.708648] [] (omap3_intc_handle_irq+0x48/0x4c) from [] (__irq_usr+0x3c/0x60) [ 79.718048] Exception stack(0xcf281fb0 to 0xcf281ff8) [ 79.723358] 1fa0: 0001e6a0 be8dab00 0001e698 00036698 [ 79.731933] 1fc0: 0002df98 0002df38 0000001f 00000000 b6f234d0 00000000 00000004 00000000 [ 79.740509] 1fe0: 0001e6f8 be8d6aa0 be8dac50 0000aab8 80000010 ffffffff [ 79.747497] Unable to handle kernel NULL pointer dereference at virtual address 00000000 [ 79.756011] pgd = cf3b4000 [ 79.758850] [00000000] *pgd=8f0c7831, *pte=00000000, *ppte=00000000 [ 79.765502] Internal error: Oops: 80000007 [#1] [ 79.770294] Modules linked in: [ 79.773529] CPU: 0 Tainted: G W (3.3.0-rc6-00002-gb5d5c87 #421) [ 79.781066] PC is at 0x0 [ 79.783721] LR is at run_timer_softirq+0x16c/0x3ac [ 79.788787] pc : [<00000000>] lr : [] psr: 60000113 [ 79.788787] sp : cf281ee0 ip : 00000000 fp : cf280000 [ 79.800903] r10: 00000004 r9 : 00000100 r8 : b6f234d0 [ 79.806427] r7 : c0519c28 r6 : cf093488 r5 : c0561a00 r4 : 00000000 [ 79.813323] r3 : 00000000 r2 : c054eee0 r1 : 00000001 r0 : 00000000 [ 79.820190] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 79.827728] Control: 10c5387d Table: 8f3b4019 DAC: 00000015 [ 79.833801] Process gpsd (pid: 1265, stack limit = 0xcf2802e8) [ 79.839965] Stack: (0xcf281ee0 to 0xcf282000) [ 79.844573] 1ee0: 00000002 00000000 c0040a24 00000000 00000002 cf281f08 00200200 00000000 [ 79.853210] 1f00: 00000000 cf281f18 cf281f08 00000000 00000000 00000000 cf281f18 cf281f18 [ 79.861816] 1f20: 00000000 00000001 c056184c 00000000 00000001 b6f234d0 c0561848 00000004 [ 79.870452] 1f40: cf280000 c003a3b8 c051e79c 00000001 00000000 00000100 3fa9e7b8 0000000a [ 79.879089] 1f60: 00000025 cf280000 00000025 00000000 00000000 b6f234d0 00000000 00000004 [ 79.887756] 1f80: 00000000 c003a924 c053ad38 c0013a50 fa200000 cf281fb0 ffffffff c0008530 [ 79.896362] 1fa0: 0001e6a0 0000aab8 80000010 c037499c 0001e6a0 be8dab00 0001e698 00036698 [ 79.904998] 1fc0: 0002df98 0002df38 0000001f 00000000 b6f234d0 00000000 00000004 00000000 [ 79.913665] 1fe0: 0001e6f8 be8d6aa0 be8dac50 0000aab8 80000010 ffffffff 00fbf700 04ffff00 [ 79.922302] [] (run_timer_softirq+0x16c/0x3ac) from [] (__do_softirq+0xd4/0x22c) [ 79.931945] [] (__do_softirq+0xd4/0x22c) from [] (irq_exit+0x8c/0x94) [ 79.940582] [] (irq_exit+0x8c/0x94) from [] (handle_IRQ+0x34/0x84) [ 79.948913] [] (handle_IRQ+0x34/0x84) from [] (omap3_intc_handle_irq+0x48/0x4c) [ 79.958404] [] (omap3_intc_handle_irq+0x48/0x4c) from [] (__irq_usr+0x3c/0x60) [ 79.967773] Exception stack(0xcf281fb0 to 0xcf281ff8) [ 79.973083] 1fa0: 0001e6a0 be8dab00 0001e698 00036698 [ 79.981658] 1fc0: 0002df98 0002df38 0000001f 00000000 b6f234d0 00000000 00000004 00000000 [ 79.990234] 1fe0: 0001e6f8 be8d6aa0 be8dac50 0000aab8 80000010 ffffffff [ 79.997161] Code: bad PC value [ 80.000396] ---[ end trace 6f6739840475f9ee ]--- [ 80.005279] Kernel panic - not syncing: Fatal exception in interrupt Cc: stable Signed-off-by: Johan Hovold Acked-by: Marcel Holtmann Signed-off-by: Johan Hedberg diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h index 344b0f9..8f928f7 100644 --- a/include/net/bluetooth/hci.h +++ b/include/net/bluetooth/hci.h @@ -92,6 +92,7 @@ enum { HCI_SERVICE_CACHE, HCI_LINK_KEYS, HCI_DEBUG_KEYS, + HCI_UNREGISTER, HCI_LE_SCAN, HCI_SSP_ENABLED, diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 59ec99e..2054c13 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -666,6 +666,11 @@ int hci_dev_open(__u16 dev) hci_req_lock(hdev); + if (test_bit(HCI_UNREGISTER, &hdev->dev_flags)) { + ret = -ENODEV; + goto done; + } + if (hdev->rfkill && rfkill_blocked(hdev->rfkill)) { ret = -ERFKILL; goto done; @@ -1850,6 +1855,8 @@ void hci_unregister_dev(struct hci_dev *hdev) BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus); + set_bit(HCI_UNREGISTER, &hdev->dev_flags); + write_lock(&hci_dev_list_lock); list_del(&hdev->list); write_unlock(&hci_dev_list_lock); -- cgit v0.10.2 From 8d7e1c7f7e5f9fe8f6279752fc33fcb77afd5001 Mon Sep 17 00:00:00 2001 From: Andrei Emeltchenko Date: Fri, 23 Mar 2012 09:42:15 +0200 Subject: Bluetooth: Fix memory leaks due to chan refcnt When we queue delayed work we hold(chan) and delayed work shall put(chan) after execution. Signed-off-by: Andrei Emeltchenko Signed-off-by: Gustavo Padovan diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 3e450f4..38d934a 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -1309,6 +1309,7 @@ static void l2cap_monitor_timeout(struct work_struct *work) if (chan->retry_count >= chan->remote_max_tx) { l2cap_send_disconn_req(chan->conn, chan, ECONNABORTED); l2cap_chan_unlock(chan); + l2cap_chan_put(chan); return; } @@ -1317,6 +1318,7 @@ static void l2cap_monitor_timeout(struct work_struct *work) l2cap_send_rr_or_rnr(chan, L2CAP_CTRL_POLL); l2cap_chan_unlock(chan); + l2cap_chan_put(chan); } static void l2cap_retrans_timeout(struct work_struct *work) @@ -1336,6 +1338,7 @@ static void l2cap_retrans_timeout(struct work_struct *work) l2cap_send_rr_or_rnr(chan, L2CAP_CTRL_POLL); l2cap_chan_unlock(chan); + l2cap_chan_put(chan); } static void l2cap_drop_acked_frames(struct l2cap_chan *chan) -- cgit v0.10.2 From 84d9d0716b2d5f4a27de4801bd2dbf7aff5e1c38 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Mon, 26 Mar 2012 14:21:41 +0300 Subject: Bluetooth: Don't increment twice in eir_has_data_type() The parsed variable is already incremented inside the for-loop so there no need to increment it again (not to mention that the code was incrementing it the wrong amount). Reported-by: Dan Carpenter Signed-off-by: Johan Hedberg Acked-by: Marcel Holtmann Signed-off-by: Gustavo Padovan diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 8e10328..220d8e0 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -907,11 +907,10 @@ static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type) { - u8 field_len; - size_t parsed; + size_t parsed = 0; - for (parsed = 0; parsed < data_len - 1; parsed += field_len) { - field_len = data[0]; + while (parsed < data_len - 1) { + u8 field_len = data[0]; if (field_len == 0) break; -- cgit v0.10.2 From 6c0c331e4c8ff6c0f7fa6cc5fd08d853d6c579c4 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Mon, 26 Mar 2012 14:21:42 +0300 Subject: Bluetooth: Check for minimum data length in eir_has_data_type() If passed 0 as data_length the (parsed < data_length - 1) test will be true and cause a buffer overflow. In practice we need at least two bytes for the element length and type so add a test for it to the very beginning of the function. Signed-off-by: Johan Hedberg Acked-by: Marcel Holtmann Signed-off-by: Gustavo Padovan diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 220d8e0..6822d25 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -909,6 +909,9 @@ static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type) { size_t parsed = 0; + if (data_len < 2) + return false; + while (parsed < data_len - 1) { u8 field_len = data[0]; -- cgit v0.10.2 From 55ed7d4d1469eafbe3ad7e8fcd44f5af27845a81 Mon Sep 17 00:00:00 2001 From: AceLan Kao Date: Wed, 28 Mar 2012 10:25:36 +0800 Subject: Bluetooth: Add support for Atheros [04ca:3005] Add another vendor specific ID for Atheros AR3012 device. This chip is wrapped by Lite-On Technology Corp. output of usb-devices: T: Bus=04 Lev=01 Prnt=01 Port=03 Cnt=01 Dev#= 2 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=04ca ProdID=3005 Rev=00.02 S: Manufacturer=Atheros Communications S: Product=Bluetooth USB Host Controller S: SerialNumber=Alaska Day 2006 C: #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb I: If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb Signed-off-by: AceLan Kao Signed-off-by: Gustavo Padovan diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c index fa65913..ae9edca 100644 --- a/drivers/bluetooth/ath3k.c +++ b/drivers/bluetooth/ath3k.c @@ -74,6 +74,7 @@ static struct usb_device_id ath3k_table[] = { { USB_DEVICE(0x0CF3, 0x3004) }, { USB_DEVICE(0x0CF3, 0x311D) }, { USB_DEVICE(0x13d3, 0x3375) }, + { USB_DEVICE(0x04CA, 0x3005) }, /* Atheros AR5BBU12 with sflash firmware */ { USB_DEVICE(0x0489, 0xE02C) }, @@ -92,6 +93,7 @@ static struct usb_device_id ath3k_blist_tbl[] = { { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, { } /* Terminating entry */ }; diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 9a5d811..ba89cd0 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -132,6 +132,7 @@ static struct usb_device_id blacklist_table[] = { { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, /* Atheros AR5BBU12 with sflash firmware */ { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, -- cgit v0.10.2 From 531563850b29726bf37a81e877277902881ab77e Mon Sep 17 00:00:00 2001 From: Brian Gix Date: Fri, 9 Mar 2012 14:07:03 -0800 Subject: Bluetooth: mgmt: Fix corruption of device_connected pkt Incorrect pointer passed to eir_append_data made mgmt_device_connected event unparsable by mgmt user space entity. Signed-off-by: Brian Gix Signed-off-by: Johan Hedberg diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 7fcff88..0e169da 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -2936,7 +2936,7 @@ int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, name, name_len); if (dev_class && memcmp(dev_class, "\0\0\0", 3) != 0) - eir_len = eir_append_data(&ev->eir[eir_len], eir_len, + eir_len = eir_append_data(ev->eir, eir_len, EIR_CLASS_OF_DEV, dev_class, 3); put_unaligned_le16(eir_len, &ev->eir_len); -- cgit v0.10.2 From 76ec9de843c3cff41b3b15b752e1d08d91f0ad18 Mon Sep 17 00:00:00 2001 From: Andrei Emeltchenko Date: Mon, 12 Mar 2012 12:13:11 +0200 Subject: Bluetooth: mgmt: Add missing endian conversion Add missing endian conversion for page scan interval and window. Signed-off-by: Andrei Emeltchenko Acked-by: Marcel Holtmann Signed-off-by: Johan Hedberg diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 0e169da..4ef275c 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -2523,13 +2523,18 @@ static int set_fast_connectable(struct sock *sk, struct hci_dev *hdev, if (cp->val) { type = PAGE_SCAN_TYPE_INTERLACED; - acp.interval = 0x0024; /* 22.5 msec page scan interval */ + + /* 22.5 msec page scan interval */ + acp.interval = __constant_cpu_to_le16(0x0024); } else { type = PAGE_SCAN_TYPE_STANDARD; /* default */ - acp.interval = 0x0800; /* default 1.28 sec page scan */ + + /* default 1.28 sec page scan */ + acp.interval = __constant_cpu_to_le16(0x0800); } - acp.window = 0x0012; /* default 11.25 msec page scan window */ + /* default 11.25 msec page scan window */ + acp.window = __constant_cpu_to_le16(0x0012); err = hci_send_cmd(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY, sizeof(acp), &acp); -- cgit v0.10.2 From c732a2af12e20f2784c8b0c9d2e289579313a413 Mon Sep 17 00:00:00 2001 From: Andrei Emeltchenko Date: Mon, 19 Mar 2012 09:42:31 +0200 Subject: Bluetooth: mgmt: Fix timeout type Silence sparse warnings: net/bluetooth/mgmt.c:865:19: warning: cast to restricted __le16 Signed-off-by: Andrei Emeltchenko Acked-by: Marcel Holtmann Signed-off-by: Gustavo Padovan diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h index ffc1377..ebfd91f 100644 --- a/include/net/bluetooth/mgmt.h +++ b/include/net/bluetooth/mgmt.h @@ -117,7 +117,7 @@ struct mgmt_mode { #define MGMT_OP_SET_DISCOVERABLE 0x0006 struct mgmt_cp_set_discoverable { __u8 val; - __u16 timeout; + __le16 timeout; } __packed; #define MGMT_SET_DISCOVERABLE_SIZE 3 -- cgit v0.10.2 From 75836b8daefdde84f8b5dde1be5b67d858139df3 Mon Sep 17 00:00:00 2001 From: Stanislav Yakovlev Date: Tue, 20 Mar 2012 17:52:57 -0400 Subject: net/wireless: ipw2x00: fix a typo in wiphy struct initilization Fix comment as well. Signed-off-by: Stanislav Yakovlev Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ipw2x00/ipw2200.c b/drivers/net/wireless/ipw2x00/ipw2200.c index 4fcdac6..2b02257 100644 --- a/drivers/net/wireless/ipw2x00/ipw2200.c +++ b/drivers/net/wireless/ipw2x00/ipw2200.c @@ -11507,9 +11507,9 @@ static int ipw_wdev_init(struct net_device *dev) rc = -ENOMEM; goto out; } - /* translate geo->bg to a_band.channels */ + /* translate geo->a to a_band.channels */ for (i = 0; i < geo->a_channels; i++) { - a_band->channels[i].band = IEEE80211_BAND_2GHZ; + a_band->channels[i].band = IEEE80211_BAND_5GHZ; a_band->channels[i].center_freq = geo->a[i].freq; a_band->channels[i].hw_value = geo->a[i].channel; a_band->channels[i].max_power = geo->a[i].max_power; -- cgit v0.10.2 From e90c7e712980bf794f88f749e2a1270e4a4a116e Mon Sep 17 00:00:00 2001 From: Santosh Nayak Date: Thu, 22 Mar 2012 12:42:41 +0530 Subject: net: orinoco: add error handling for failed kmalloc(). With flag 'GFP_ATOMIC', probability of allocation failure is more. Add error handling after kmalloc() call to avoid null dereference. Signed-off-by: Santosh Nayak Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/orinoco/main.c b/drivers/net/wireless/orinoco/main.c index dd6c64a..88e3ad2 100644 --- a/drivers/net/wireless/orinoco/main.c +++ b/drivers/net/wireless/orinoco/main.c @@ -1336,6 +1336,10 @@ static void qbuf_scan(struct orinoco_private *priv, void *buf, unsigned long flags; sd = kmalloc(sizeof(*sd), GFP_ATOMIC); + if (!sd) { + printk(KERN_ERR "%s: failed to alloc memory\n", __func__); + return; + } sd->buf = buf; sd->len = len; sd->type = type; @@ -1353,6 +1357,10 @@ static void qabort_scan(struct orinoco_private *priv) unsigned long flags; sd = kmalloc(sizeof(*sd), GFP_ATOMIC); + if (!sd) { + printk(KERN_ERR "%s: failed to alloc memory\n", __func__); + return; + } sd->len = -1; /* Abort */ spin_lock_irqsave(&priv->scan_lock, flags); -- cgit v0.10.2 From ca907a90735877ceff800d08f780f2f1b4388afa Mon Sep 17 00:00:00 2001 From: Stanislav Yakovlev Date: Sat, 24 Mar 2012 03:41:01 -0400 Subject: MAINTAINERS: adding maintainer for ipw2x00 Add myself as maintainer as suggested by Stanislaw Gruszka. Signed-off-by: Stanislav Yakovlev Signed-off-by: John W. Linville diff --git a/MAINTAINERS b/MAINTAINERS index 0ddc77fe..09a79f9 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3519,17 +3519,13 @@ L: linux-pm@vger.kernel.org S: Supported F: arch/x86/platform/mrst/pmu.* -INTEL PRO/WIRELESS 2100 NETWORK CONNECTION SUPPORT +INTEL PRO/WIRELESS 2100, 2200BG, 2915ABG NETWORK CONNECTION SUPPORT +M: Stanislav Yakovlev L: linux-wireless@vger.kernel.org -S: Orphan +S: Maintained F: Documentation/networking/README.ipw2100 -F: drivers/net/wireless/ipw2x00/ipw2100.* - -INTEL PRO/WIRELESS 2915ABG NETWORK CONNECTION SUPPORT -L: linux-wireless@vger.kernel.org -S: Orphan F: Documentation/networking/README.ipw2200 -F: drivers/net/wireless/ipw2x00/ipw2200.* +F: drivers/net/wireless/ipw2x00/ INTEL(R) TRUSTED EXECUTION TECHNOLOGY (TXT) M: Joseph Cihula -- cgit v0.10.2 From a4d6367fa77fb604ce62582e1c0998e0ed098927 Mon Sep 17 00:00:00 2001 From: Sujith Manoharan Date: Tue, 27 Mar 2012 10:08:55 +0530 Subject: ath9k: Use HW HT capabilites properly The commit "ath9k: Remove aggregation flags" changed how nodes were being initialized. Use the HW HT cap bits to initialize/de-initialize nodes, else we would be accessing an uninitialized entry during a suspend/resume cycle, resulting in a panic. Reported-by: Justin P. Mattock Signed-off-by: Sujith Manoharan Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 3879485..215eb25 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -640,7 +640,7 @@ static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta, an->sta = sta; an->vif = vif; - if (sta->ht_cap.ht_supported) { + if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) { ath_tx_node_init(sc, an); an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR + sta->ht_cap.ampdu_factor); @@ -659,7 +659,7 @@ static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta) an->sta = NULL; #endif - if (sta->ht_cap.ht_supported) + if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) ath_tx_node_cleanup(sc, an); } -- cgit v0.10.2 From de312db345f9770b64ff39ef5a7f86f6358e93cc Mon Sep 17 00:00:00 2001 From: Rajkumar Manoharan Date: Tue, 27 Mar 2012 11:01:06 +0530 Subject: mac80211: fix oper channel timestamp updation Whenever the station informs the AP that it is about to leave the operating channel, the timestamp should be recorded. It is handled in scan resume but not in scan start. Fix that. Signed-off-by: Rajkumar Manoharan Signed-off-by: John W. Linville diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index 33cd169..c70e176 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -370,7 +370,7 @@ static int ieee80211_start_sw_scan(struct ieee80211_local *local) */ drv_sw_scan_start(local); - local->leave_oper_channel_time = 0; + local->leave_oper_channel_time = jiffies; local->next_scan_state = SCAN_DECISION; local->scan_channel_idx = 0; -- cgit v0.10.2 From fe2e39d8782d885755139304d8dba0b3e5bfa878 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 28 Mar 2012 23:29:45 +0200 Subject: firmware_class: Rework usermodehelper check Instead of two functions, read_lock_usermodehelper() and usermodehelper_is_disabled(), used in combination, introduce usermodehelper_read_trylock() that will only return with umhelper_sem held if usermodehelper_disabled is unset (and will return -EAGAIN otherwise) and make _request_firmware() use it. Rename read_unlock_usermodehelper() to usermodehelper_read_unlock() to follow the naming convention of the new function. Signed-off-by: Rafael J. Wysocki Acked-by: Greg Kroah-Hartman Cc: stable@vger.kernel.org diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c index 6c9387d..deee871 100644 --- a/drivers/base/firmware_class.c +++ b/drivers/base/firmware_class.c @@ -533,12 +533,10 @@ static int _request_firmware(const struct firmware **firmware_p, return 0; } - read_lock_usermodehelper(); - - if (WARN_ON(usermodehelper_is_disabled())) { + retval = usermodehelper_read_trylock(); + if (WARN_ON(retval)) { dev_err(device, "firmware: %s will not be loaded\n", name); - retval = -EBUSY; - goto out; + goto out_nolock; } if (uevent) @@ -573,8 +571,9 @@ static int _request_firmware(const struct firmware **firmware_p, fw_destroy_instance(fw_priv); out: - read_unlock_usermodehelper(); + usermodehelper_read_unlock(); +out_nolock: if (retval) { release_firmware(firmware); *firmware_p = NULL; diff --git a/include/linux/kmod.h b/include/linux/kmod.h index 9efeae6..97d22c3 100644 --- a/include/linux/kmod.h +++ b/include/linux/kmod.h @@ -114,8 +114,7 @@ extern void usermodehelper_init(void); extern int usermodehelper_disable(void); extern void usermodehelper_enable(void); -extern bool usermodehelper_is_disabled(void); -extern void read_lock_usermodehelper(void); -extern void read_unlock_usermodehelper(void); +extern int usermodehelper_read_trylock(void); +extern void usermodehelper_read_unlock(void); #endif /* __LINUX_KMOD_H__ */ diff --git a/kernel/kmod.c b/kernel/kmod.c index 957a7aa..4079ac1 100644 --- a/kernel/kmod.c +++ b/kernel/kmod.c @@ -339,17 +339,24 @@ static DECLARE_WAIT_QUEUE_HEAD(running_helpers_waitq); */ #define RUNNING_HELPERS_TIMEOUT (5 * HZ) -void read_lock_usermodehelper(void) +int usermodehelper_read_trylock(void) { + int ret = 0; + down_read(&umhelper_sem); + if (usermodehelper_disabled) { + up_read(&umhelper_sem); + ret = -EAGAIN; + } + return ret; } -EXPORT_SYMBOL_GPL(read_lock_usermodehelper); +EXPORT_SYMBOL_GPL(usermodehelper_read_trylock); -void read_unlock_usermodehelper(void) +void usermodehelper_read_unlock(void) { up_read(&umhelper_sem); } -EXPORT_SYMBOL_GPL(read_unlock_usermodehelper); +EXPORT_SYMBOL_GPL(usermodehelper_read_unlock); /** * usermodehelper_disable - prevent new helpers from being started @@ -390,15 +397,6 @@ void usermodehelper_enable(void) up_write(&umhelper_sem); } -/** - * usermodehelper_is_disabled - check if new helpers are allowed to be started - */ -bool usermodehelper_is_disabled(void) -{ - return usermodehelper_disabled; -} -EXPORT_SYMBOL_GPL(usermodehelper_is_disabled); - static void helper_lock(void) { atomic_inc(&running_helpers); -- cgit v0.10.2 From 811fa4004485dec8977176bf605a5b0508ee206c Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 28 Mar 2012 23:29:55 +0200 Subject: firmware_class: Split _request_firmware() into three functions, v2 Split _request_firmware() into three functions, _request_firmware_prepare() doing preparatory work that need not be done under umhelper_sem, _request_firmware_cleanup() doing the post-error cleanup and _request_firmware() carrying out the remaining operations. This change is requisite for moving the acquisition of umhelper_sem from _request_firmware() to the callers, which is going to be done subsequently. Signed-off-by: Rafael J. Wysocki Acked-by: Greg Kroah-Hartman Reviewed-by: Stephen Boyd Cc: stable@vger.kernel.org diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c index deee871..6029067 100644 --- a/drivers/base/firmware_class.c +++ b/drivers/base/firmware_class.c @@ -435,7 +435,7 @@ static void firmware_class_timeout(u_long data) } static struct firmware_priv * -fw_create_instance(struct firmware *firmware, const char *fw_name, +fw_create_instance(const struct firmware *firmware, const char *fw_name, struct device *device, bool uevent, bool nowait) { struct firmware_priv *fw_priv; @@ -449,7 +449,7 @@ fw_create_instance(struct firmware *firmware, const char *fw_name, goto err_out; } - fw_priv->fw = firmware; + fw_priv->fw = (struct firmware *)firmware; fw_priv->nowait = nowait; strcpy(fw_priv->fw_id, fw_name); init_completion(&fw_priv->completion); @@ -510,13 +510,10 @@ static void fw_destroy_instance(struct firmware_priv *fw_priv) device_unregister(f_dev); } -static int _request_firmware(const struct firmware **firmware_p, - const char *name, struct device *device, - bool uevent, bool nowait) +static int _request_firmware_prepare(const struct firmware **firmware_p, + const char *name, struct device *device) { - struct firmware_priv *fw_priv; struct firmware *firmware; - int retval = 0; if (!firmware_p) return -EINVAL; @@ -533,10 +530,26 @@ static int _request_firmware(const struct firmware **firmware_p, return 0; } + return 1; +} + +static void _request_firmware_cleanup(const struct firmware **firmware_p) +{ + release_firmware(*firmware_p); + *firmware_p = NULL; +} + +static int _request_firmware(const struct firmware *firmware, + const char *name, struct device *device, + bool uevent, bool nowait) +{ + struct firmware_priv *fw_priv; + int retval; + retval = usermodehelper_read_trylock(); if (WARN_ON(retval)) { dev_err(device, "firmware: %s will not be loaded\n", name); - goto out_nolock; + return retval; } if (uevent) @@ -572,13 +585,6 @@ static int _request_firmware(const struct firmware **firmware_p, out: usermodehelper_read_unlock(); - -out_nolock: - if (retval) { - release_firmware(firmware); - *firmware_p = NULL; - } - return retval; } @@ -601,7 +607,17 @@ int request_firmware(const struct firmware **firmware_p, const char *name, struct device *device) { - return _request_firmware(firmware_p, name, device, true, false); + int ret; + + ret = _request_firmware_prepare(firmware_p, name, device); + if (ret <= 0) + return ret; + + ret = _request_firmware(*firmware_p, name, device, true, false); + if (ret) + _request_firmware_cleanup(firmware_p); + + return ret; } /** @@ -639,8 +655,16 @@ static int request_firmware_work_func(void *arg) return 0; } - ret = _request_firmware(&fw, fw_work->name, fw_work->device, + ret = _request_firmware_prepare(&fw, fw_work->name, fw_work->device); + if (ret <= 0) + goto out; + + ret = _request_firmware(fw, fw_work->name, fw_work->device, fw_work->uevent, true); + if (ret) + _request_firmware_cleanup(&fw); + + out: fw_work->cont(fw, fw_work->context); module_put(fw_work->module); -- cgit v0.10.2 From 9b78c1da60b3c62ccdd1509f0902ad19ceaf776b Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 28 Mar 2012 23:30:02 +0200 Subject: firmware_class: Do not warn that system is not ready from async loads If firmware is requested asynchronously, by calling request_firmware_nowait(), there is no reason to fail the request (and warn the user) when the system is (presumably temporarily) unready to handle it (because user space is not available yet or frozen). For this reason, introduce an alternative routine for read-locking umhelper_sem, usermodehelper_read_lock_wait(), that will wait for usermodehelper_disabled to be unset (possibly with a timeout) and make request_firmware_work_func() use it instead of usermodehelper_read_trylock(). Accordingly, modify request_firmware() so that it uses usermodehelper_read_trylock() to acquire umhelper_sem and remove the code related to that lock from _request_firmware(). Signed-off-by: Rafael J. Wysocki Acked-by: Greg Kroah-Hartman Cc: stable@vger.kernel.org diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c index 6029067..72c644b 100644 --- a/drivers/base/firmware_class.c +++ b/drivers/base/firmware_class.c @@ -81,6 +81,11 @@ enum { static int loading_timeout = 60; /* In seconds */ +static inline long firmware_loading_timeout(void) +{ + return loading_timeout > 0 ? loading_timeout * HZ : MAX_SCHEDULE_TIMEOUT; +} + /* fw_lock could be moved to 'struct firmware_priv' but since it is just * guarding for corner cases a global lock should be OK */ static DEFINE_MUTEX(fw_lock); @@ -541,31 +546,22 @@ static void _request_firmware_cleanup(const struct firmware **firmware_p) static int _request_firmware(const struct firmware *firmware, const char *name, struct device *device, - bool uevent, bool nowait) + bool uevent, bool nowait, long timeout) { struct firmware_priv *fw_priv; - int retval; - - retval = usermodehelper_read_trylock(); - if (WARN_ON(retval)) { - dev_err(device, "firmware: %s will not be loaded\n", name); - return retval; - } + int retval = 0; if (uevent) dev_dbg(device, "firmware: requesting %s\n", name); fw_priv = fw_create_instance(firmware, name, device, uevent, nowait); - if (IS_ERR(fw_priv)) { - retval = PTR_ERR(fw_priv); - goto out; - } + if (IS_ERR(fw_priv)) + return PTR_ERR(fw_priv); if (uevent) { - if (loading_timeout > 0) + if (timeout != MAX_SCHEDULE_TIMEOUT) mod_timer(&fw_priv->timeout, - round_jiffies_up(jiffies + - loading_timeout * HZ)); + round_jiffies_up(jiffies + timeout)); kobject_uevent(&fw_priv->dev.kobj, KOBJ_ADD); } @@ -582,9 +578,6 @@ static int _request_firmware(const struct firmware *firmware, mutex_unlock(&fw_lock); fw_destroy_instance(fw_priv); - -out: - usermodehelper_read_unlock(); return retval; } @@ -613,7 +606,14 @@ request_firmware(const struct firmware **firmware_p, const char *name, if (ret <= 0) return ret; - ret = _request_firmware(*firmware_p, name, device, true, false); + ret = usermodehelper_read_trylock(); + if (WARN_ON(ret)) { + dev_err(device, "firmware: %s will not be loaded\n", name); + } else { + ret = _request_firmware(*firmware_p, name, device, true, false, + firmware_loading_timeout()); + usermodehelper_read_unlock(); + } if (ret) _request_firmware_cleanup(firmware_p); @@ -648,6 +648,7 @@ static int request_firmware_work_func(void *arg) { struct firmware_work *fw_work = arg; const struct firmware *fw; + long timeout; int ret; if (!arg) { @@ -659,8 +660,16 @@ static int request_firmware_work_func(void *arg) if (ret <= 0) goto out; - ret = _request_firmware(fw, fw_work->name, fw_work->device, - fw_work->uevent, true); + timeout = usermodehelper_read_lock_wait(firmware_loading_timeout()); + if (timeout) { + ret = _request_firmware(fw, fw_work->name, fw_work->device, + fw_work->uevent, true, timeout); + usermodehelper_read_unlock(); + } else { + dev_dbg(fw_work->device, "firmware: %s loading timed out\n", + fw_work->name); + ret = -EAGAIN; + } if (ret) _request_firmware_cleanup(&fw); diff --git a/include/linux/kmod.h b/include/linux/kmod.h index 97d22c3..b087377 100644 --- a/include/linux/kmod.h +++ b/include/linux/kmod.h @@ -115,6 +115,7 @@ extern void usermodehelper_init(void); extern int usermodehelper_disable(void); extern void usermodehelper_enable(void); extern int usermodehelper_read_trylock(void); +extern long usermodehelper_read_lock_wait(long timeout); extern void usermodehelper_read_unlock(void); #endif /* __LINUX_KMOD_H__ */ diff --git a/kernel/kmod.c b/kernel/kmod.c index 4079ac1..da7fcca 100644 --- a/kernel/kmod.c +++ b/kernel/kmod.c @@ -334,6 +334,12 @@ static atomic_t running_helpers = ATOMIC_INIT(0); static DECLARE_WAIT_QUEUE_HEAD(running_helpers_waitq); /* + * Used by usermodehelper_read_lock_wait() to wait for usermodehelper_disabled + * to become 'false'. + */ +static DECLARE_WAIT_QUEUE_HEAD(usermodehelper_disabled_waitq); + +/* * Time to wait for running_helpers to become zero before the setting of * usermodehelper_disabled in usermodehelper_disable() fails */ @@ -352,6 +358,33 @@ int usermodehelper_read_trylock(void) } EXPORT_SYMBOL_GPL(usermodehelper_read_trylock); +long usermodehelper_read_lock_wait(long timeout) +{ + DEFINE_WAIT(wait); + + if (timeout < 0) + return -EINVAL; + + down_read(&umhelper_sem); + for (;;) { + prepare_to_wait(&usermodehelper_disabled_waitq, &wait, + TASK_UNINTERRUPTIBLE); + if (!usermodehelper_disabled) + break; + + up_read(&umhelper_sem); + + timeout = schedule_timeout(timeout); + if (!timeout) + break; + + down_read(&umhelper_sem); + } + finish_wait(&usermodehelper_disabled_waitq, &wait); + return timeout; +} +EXPORT_SYMBOL_GPL(usermodehelper_read_lock_wait); + void usermodehelper_read_unlock(void) { up_read(&umhelper_sem); @@ -359,6 +392,17 @@ void usermodehelper_read_unlock(void) EXPORT_SYMBOL_GPL(usermodehelper_read_unlock); /** + * usermodehelper_enable - allow new helpers to be started again + */ +void usermodehelper_enable(void) +{ + down_write(&umhelper_sem); + usermodehelper_disabled = 0; + wake_up(&usermodehelper_disabled_waitq); + up_write(&umhelper_sem); +} + +/** * usermodehelper_disable - prevent new helpers from being started */ int usermodehelper_disable(void) @@ -381,22 +425,10 @@ int usermodehelper_disable(void) if (retval) return 0; - down_write(&umhelper_sem); - usermodehelper_disabled = 0; - up_write(&umhelper_sem); + usermodehelper_enable(); return -EAGAIN; } -/** - * usermodehelper_enable - allow new helpers to be started again - */ -void usermodehelper_enable(void) -{ - down_write(&umhelper_sem); - usermodehelper_disabled = 0; - up_write(&umhelper_sem); -} - static void helper_lock(void) { atomic_inc(&running_helpers); -- cgit v0.10.2 From 7b5179ac14dbad945647ac9e76bbbf14ed9e0dbe Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 28 Mar 2012 23:30:14 +0200 Subject: PM / Hibernate: Disable usermode helpers right before freezing tasks There is no reason to call usermodehelper_disable() before creating memory bitmaps in hibernate() and software_resume(), so call it right before freeze_processes(), in accordance with the other suspend and hibernation code. Consequently, call usermodehelper_enable() right after the thawing of tasks rather than after freeing the memory bitmaps. Signed-off-by: Rafael J. Wysocki Acked-by: Greg Kroah-Hartman Cc: stable@vger.kernel.org diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c index 0a186cf..639ff6e 100644 --- a/kernel/power/hibernate.c +++ b/kernel/power/hibernate.c @@ -611,19 +611,19 @@ int hibernate(void) if (error) goto Exit; - error = usermodehelper_disable(); - if (error) - goto Exit; - /* Allocate memory management structures */ error = create_basic_memory_bitmaps(); if (error) - goto Enable_umh; + goto Exit; printk(KERN_INFO "PM: Syncing filesystems ... "); sys_sync(); printk("done.\n"); + error = usermodehelper_disable(); + if (error) + goto Exit; + error = freeze_processes(); if (error) goto Free_bitmaps; @@ -660,9 +660,8 @@ int hibernate(void) freezer_test_done = false; Free_bitmaps: - free_basic_memory_bitmaps(); - Enable_umh: usermodehelper_enable(); + free_basic_memory_bitmaps(); Exit: pm_notifier_call_chain(PM_POST_HIBERNATION); pm_restore_console(); @@ -777,15 +776,13 @@ static int software_resume(void) if (error) goto close_finish; - error = usermodehelper_disable(); + error = create_basic_memory_bitmaps(); if (error) goto close_finish; - error = create_basic_memory_bitmaps(); - if (error) { - usermodehelper_enable(); + error = usermodehelper_disable(); + if (error) goto close_finish; - } pr_debug("PM: Preparing processes for restore.\n"); error = freeze_processes(); @@ -805,8 +802,8 @@ static int software_resume(void) swsusp_free(); thaw_processes(); Done: - free_basic_memory_bitmaps(); usermodehelper_enable(); + free_basic_memory_bitmaps(); Finish: pm_notifier_call_chain(PM_POST_RESTORE); pm_restore_console(); -- cgit v0.10.2 From 1e73203cd1157a03facc41ffb54050f5b28e55bd Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 28 Mar 2012 23:30:21 +0200 Subject: PM / Sleep: Move disabling of usermode helpers to the freezer The core suspend/hibernation code calls usermodehelper_disable() to avoid race conditions between the freezer and the starting of usermode helpers and each code path has to do that on its own. However, it is always called right before freeze_processes() and usermodehelper_enable() is always called right after thaw_processes(). For this reason, to avoid code duplication and to make the connection between usermodehelper_disable() and the freezer more visible, make freeze_processes() call it and remove the direct usermodehelper_disable() and usermodehelper_enable() calls from all suspend/hibernation code paths. Signed-off-by: Rafael J. Wysocki Acked-by: Greg Kroah-Hartman Cc: stable@vger.kernel.org diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c index 639ff6e..e09dfbf 100644 --- a/kernel/power/hibernate.c +++ b/kernel/power/hibernate.c @@ -16,7 +16,6 @@ #include #include #include -#include #include #include #include @@ -620,10 +619,6 @@ int hibernate(void) sys_sync(); printk("done.\n"); - error = usermodehelper_disable(); - if (error) - goto Exit; - error = freeze_processes(); if (error) goto Free_bitmaps; @@ -660,7 +655,6 @@ int hibernate(void) freezer_test_done = false; Free_bitmaps: - usermodehelper_enable(); free_basic_memory_bitmaps(); Exit: pm_notifier_call_chain(PM_POST_HIBERNATION); @@ -780,10 +774,6 @@ static int software_resume(void) if (error) goto close_finish; - error = usermodehelper_disable(); - if (error) - goto close_finish; - pr_debug("PM: Preparing processes for restore.\n"); error = freeze_processes(); if (error) { @@ -802,7 +792,6 @@ static int software_resume(void) swsusp_free(); thaw_processes(); Done: - usermodehelper_enable(); free_basic_memory_bitmaps(); Finish: pm_notifier_call_chain(PM_POST_RESTORE); diff --git a/kernel/power/process.c b/kernel/power/process.c index 0d2aeb2..56eaac7 100644 --- a/kernel/power/process.c +++ b/kernel/power/process.c @@ -16,6 +16,7 @@ #include #include #include +#include /* * Timeout for stopping processes @@ -122,6 +123,10 @@ int freeze_processes(void) { int error; + error = usermodehelper_disable(); + if (error) + return error; + if (!pm_freezing) atomic_inc(&system_freezing_cnt); @@ -187,6 +192,8 @@ void thaw_processes(void) } while_each_thread(g, p); read_unlock(&tasklist_lock); + usermodehelper_enable(); + schedule(); printk("done.\n"); } diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c index 88e5c967..396d262 100644 --- a/kernel/power/suspend.c +++ b/kernel/power/suspend.c @@ -12,7 +12,6 @@ #include #include #include -#include #include #include #include @@ -102,17 +101,12 @@ static int suspend_prepare(void) if (error) goto Finish; - error = usermodehelper_disable(); - if (error) - goto Finish; - error = suspend_freeze_processes(); if (!error) return 0; suspend_stats.failed_freeze++; dpm_save_failed_step(SUSPEND_FREEZE); - usermodehelper_enable(); Finish: pm_notifier_call_chain(PM_POST_SUSPEND); pm_restore_console(); @@ -259,7 +253,6 @@ int suspend_devices_and_enter(suspend_state_t state) static void suspend_finish(void) { suspend_thaw_processes(); - usermodehelper_enable(); pm_notifier_call_chain(PM_POST_SUSPEND); pm_restore_console(); } diff --git a/kernel/power/user.c b/kernel/power/user.c index 33c4329..91b0fd0 100644 --- a/kernel/power/user.c +++ b/kernel/power/user.c @@ -12,7 +12,6 @@ #include #include #include -#include #include #include #include @@ -222,14 +221,8 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd, sys_sync(); printk("done.\n"); - error = usermodehelper_disable(); - if (error) - break; - error = freeze_processes(); - if (error) - usermodehelper_enable(); - else + if (!error) data->frozen = 1; break; @@ -238,7 +231,6 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd, break; pm_restore_gfp_mask(); thaw_processes(); - usermodehelper_enable(); data->frozen = 0; break; -- cgit v0.10.2 From 247bc03742545fec2f79939a3b9f738392a0f7b4 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 28 Mar 2012 23:30:28 +0200 Subject: PM / Sleep: Mitigate race between the freezer and request_firmware() There is a race condition between the freezer and request_firmware() such that if request_firmware() is run on one CPU and freeze_processes() is run on another CPU and usermodehelper_disable() called by it succeeds to grab umhelper_sem for writing before usermodehelper_read_trylock() called from request_firmware() acquires it for reading, the request_firmware() will fail and trigger a WARN_ON() complaining that it was called at a wrong time. However, in fact, it wasn't called at a wrong time and freeze_processes() simply happened to be executed simultaneously. To avoid this race, at least in some cases, modify usermodehelper_read_trylock() so that it doesn't fail if the freezing of tasks has just started and hasn't been completed yet. Instead, during the freezing of tasks, it will try to freeze the task that has called it so that it can wait until user space is thawed without triggering the scary warning. For this purpose, change usermodehelper_disabled so that it can take three different values, UMH_ENABLED (0), UMH_FREEZING and UMH_DISABLED. The first one means that usermode helpers are enabled, the last one means "hard disable" (i.e. the system is not ready for usermode helpers to be used) and the second one is reserved for the freezer. Namely, when freeze_processes() is started, it sets usermodehelper_disabled to UMH_FREEZING which tells usermodehelper_read_trylock() that it shouldn't fail just yet and should call try_to_freeze() if woken up and cannot return immediately. This way all freezable tasks that happen to call request_firmware() right before freeze_processes() is started and lose the race for umhelper_sem with it will be frozen and will sleep until thaw_processes() unsets usermodehelper_disabled. [For the non-freezable callers of request_firmware() the race for umhelper_sem against freeze_processes() is unfortunately unavoidable.] Reported-by: Stephen Boyd Signed-off-by: Rafael J. Wysocki Acked-by: Greg Kroah-Hartman Cc: stable@vger.kernel.org diff --git a/include/linux/kmod.h b/include/linux/kmod.h index b087377..dd99c32 100644 --- a/include/linux/kmod.h +++ b/include/linux/kmod.h @@ -110,10 +110,27 @@ call_usermodehelper(char *path, char **argv, char **envp, int wait) extern struct ctl_table usermodehelper_table[]; +enum umh_disable_depth { + UMH_ENABLED = 0, + UMH_FREEZING, + UMH_DISABLED, +}; + extern void usermodehelper_init(void); -extern int usermodehelper_disable(void); -extern void usermodehelper_enable(void); +extern int __usermodehelper_disable(enum umh_disable_depth depth); +extern void __usermodehelper_set_disable_depth(enum umh_disable_depth depth); + +static inline int usermodehelper_disable(void) +{ + return __usermodehelper_disable(UMH_DISABLED); +} + +static inline void usermodehelper_enable(void) +{ + __usermodehelper_set_disable_depth(UMH_ENABLED); +} + extern int usermodehelper_read_trylock(void); extern long usermodehelper_read_lock_wait(long timeout); extern void usermodehelper_read_unlock(void); diff --git a/kernel/kmod.c b/kernel/kmod.c index da7fcca..05698a7 100644 --- a/kernel/kmod.c +++ b/kernel/kmod.c @@ -322,7 +322,7 @@ static void __call_usermodehelper(struct work_struct *work) * land has been frozen during a system-wide hibernation or suspend operation). * Should always be manipulated under umhelper_sem acquired for write. */ -static int usermodehelper_disabled = 1; +static enum umh_disable_depth usermodehelper_disabled = UMH_DISABLED; /* Number of helpers running */ static atomic_t running_helpers = ATOMIC_INIT(0); @@ -347,13 +347,30 @@ static DECLARE_WAIT_QUEUE_HEAD(usermodehelper_disabled_waitq); int usermodehelper_read_trylock(void) { + DEFINE_WAIT(wait); int ret = 0; down_read(&umhelper_sem); - if (usermodehelper_disabled) { + for (;;) { + prepare_to_wait(&usermodehelper_disabled_waitq, &wait, + TASK_INTERRUPTIBLE); + if (!usermodehelper_disabled) + break; + + if (usermodehelper_disabled == UMH_DISABLED) + ret = -EAGAIN; + up_read(&umhelper_sem); - ret = -EAGAIN; + + if (ret) + break; + + schedule(); + try_to_freeze(); + + down_read(&umhelper_sem); } + finish_wait(&usermodehelper_disabled_waitq, &wait); return ret; } EXPORT_SYMBOL_GPL(usermodehelper_read_trylock); @@ -392,25 +409,35 @@ void usermodehelper_read_unlock(void) EXPORT_SYMBOL_GPL(usermodehelper_read_unlock); /** - * usermodehelper_enable - allow new helpers to be started again + * __usermodehelper_set_disable_depth - Modify usermodehelper_disabled. + * depth: New value to assign to usermodehelper_disabled. + * + * Change the value of usermodehelper_disabled (under umhelper_sem locked for + * writing) and wakeup tasks waiting for it to change. */ -void usermodehelper_enable(void) +void __usermodehelper_set_disable_depth(enum umh_disable_depth depth) { down_write(&umhelper_sem); - usermodehelper_disabled = 0; + usermodehelper_disabled = depth; wake_up(&usermodehelper_disabled_waitq); up_write(&umhelper_sem); } /** - * usermodehelper_disable - prevent new helpers from being started + * __usermodehelper_disable - Prevent new helpers from being started. + * @depth: New value to assign to usermodehelper_disabled. + * + * Set usermodehelper_disabled to @depth and wait for running helpers to exit. */ -int usermodehelper_disable(void) +int __usermodehelper_disable(enum umh_disable_depth depth) { long retval; + if (!depth) + return -EINVAL; + down_write(&umhelper_sem); - usermodehelper_disabled = 1; + usermodehelper_disabled = depth; up_write(&umhelper_sem); /* @@ -425,7 +452,7 @@ int usermodehelper_disable(void) if (retval) return 0; - usermodehelper_enable(); + __usermodehelper_set_disable_depth(UMH_ENABLED); return -EAGAIN; } diff --git a/kernel/power/process.c b/kernel/power/process.c index 56eaac7..19db29f 100644 --- a/kernel/power/process.c +++ b/kernel/power/process.c @@ -123,7 +123,7 @@ int freeze_processes(void) { int error; - error = usermodehelper_disable(); + error = __usermodehelper_disable(UMH_FREEZING); if (error) return error; @@ -135,6 +135,7 @@ int freeze_processes(void) error = try_to_freeze_tasks(true); if (!error) { printk("done."); + __usermodehelper_set_disable_depth(UMH_DISABLED); oom_killer_disable(); } printk("\n"); -- cgit v0.10.2 From dddb5549da6b15ea8b9ce9ee0859c8d1fa268b5b Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Wed, 28 Mar 2012 23:30:43 +0200 Subject: firmware_class: Reorganize fw_create_instance() Recent patches to split up the three phases of request_firmware() lead to a casting away of const in fw_create_instance(). We can avoid this cast by splitting up fw_create_instance() a bit. Make _request_firmware_setup() return a struct fw_priv and use that struct instead of passing struct firmware to _request_firmware(). Move the uevent and device file creation bits to the loading phase and rename the function to _request_firmware_load() to better reflect its purpose. Signed-off-by: Stephen Boyd Acked-by: Greg Kroah-Hartman Signed-off-by: Rafael J. Wysocki diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c index 72c644b..ae00a2f 100644 --- a/drivers/base/firmware_class.c +++ b/drivers/base/firmware_class.c @@ -440,21 +440,19 @@ static void firmware_class_timeout(u_long data) } static struct firmware_priv * -fw_create_instance(const struct firmware *firmware, const char *fw_name, +fw_create_instance(struct firmware *firmware, const char *fw_name, struct device *device, bool uevent, bool nowait) { struct firmware_priv *fw_priv; struct device *f_dev; - int error; fw_priv = kzalloc(sizeof(*fw_priv) + strlen(fw_name) + 1 , GFP_KERNEL); if (!fw_priv) { dev_err(device, "%s: kmalloc failed\n", __func__); - error = -ENOMEM; - goto err_out; + return ERR_PTR(-ENOMEM); } - fw_priv->fw = (struct firmware *)firmware; + fw_priv->fw = firmware; fw_priv->nowait = nowait; strcpy(fw_priv->fw_id, fw_name); init_completion(&fw_priv->completion); @@ -468,74 +466,37 @@ fw_create_instance(const struct firmware *firmware, const char *fw_name, f_dev->parent = device; f_dev->class = &firmware_class; - dev_set_uevent_suppress(f_dev, true); - - /* Need to pin this module until class device is destroyed */ - __module_get(THIS_MODULE); - - error = device_add(f_dev); - if (error) { - dev_err(device, "%s: device_register failed\n", __func__); - goto err_put_dev; - } - - error = device_create_bin_file(f_dev, &firmware_attr_data); - if (error) { - dev_err(device, "%s: sysfs_create_bin_file failed\n", __func__); - goto err_del_dev; - } - - error = device_create_file(f_dev, &dev_attr_loading); - if (error) { - dev_err(device, "%s: device_create_file failed\n", __func__); - goto err_del_bin_attr; - } - - if (uevent) - dev_set_uevent_suppress(f_dev, false); - return fw_priv; - -err_del_bin_attr: - device_remove_bin_file(f_dev, &firmware_attr_data); -err_del_dev: - device_del(f_dev); -err_put_dev: - put_device(f_dev); -err_out: - return ERR_PTR(error); -} - -static void fw_destroy_instance(struct firmware_priv *fw_priv) -{ - struct device *f_dev = &fw_priv->dev; - - device_remove_file(f_dev, &dev_attr_loading); - device_remove_bin_file(f_dev, &firmware_attr_data); - device_unregister(f_dev); } -static int _request_firmware_prepare(const struct firmware **firmware_p, - const char *name, struct device *device) +static struct firmware_priv * +_request_firmware_prepare(const struct firmware **firmware_p, const char *name, + struct device *device, bool uevent, bool nowait) { struct firmware *firmware; + struct firmware_priv *fw_priv; if (!firmware_p) - return -EINVAL; + return ERR_PTR(-EINVAL); *firmware_p = firmware = kzalloc(sizeof(*firmware), GFP_KERNEL); if (!firmware) { dev_err(device, "%s: kmalloc(struct firmware) failed\n", __func__); - return -ENOMEM; + return ERR_PTR(-ENOMEM); } if (fw_get_builtin_firmware(firmware, name)) { dev_dbg(device, "firmware: using built-in firmware %s\n", name); - return 0; + return NULL; } - return 1; + fw_priv = fw_create_instance(firmware, name, device, uevent, nowait); + if (IS_ERR(fw_priv)) { + release_firmware(firmware); + *firmware_p = NULL; + } + return fw_priv; } static void _request_firmware_cleanup(const struct firmware **firmware_p) @@ -544,21 +505,38 @@ static void _request_firmware_cleanup(const struct firmware **firmware_p) *firmware_p = NULL; } -static int _request_firmware(const struct firmware *firmware, - const char *name, struct device *device, - bool uevent, bool nowait, long timeout) +static int _request_firmware_load(struct firmware_priv *fw_priv, bool uevent, + long timeout) { - struct firmware_priv *fw_priv; int retval = 0; + struct device *f_dev = &fw_priv->dev; + + dev_set_uevent_suppress(f_dev, true); - if (uevent) - dev_dbg(device, "firmware: requesting %s\n", name); + /* Need to pin this module until class device is destroyed */ + __module_get(THIS_MODULE); - fw_priv = fw_create_instance(firmware, name, device, uevent, nowait); - if (IS_ERR(fw_priv)) - return PTR_ERR(fw_priv); + retval = device_add(f_dev); + if (retval) { + dev_err(f_dev, "%s: device_register failed\n", __func__); + goto err_put_dev; + } + + retval = device_create_bin_file(f_dev, &firmware_attr_data); + if (retval) { + dev_err(f_dev, "%s: sysfs_create_bin_file failed\n", __func__); + goto err_del_dev; + } + + retval = device_create_file(f_dev, &dev_attr_loading); + if (retval) { + dev_err(f_dev, "%s: device_create_file failed\n", __func__); + goto err_del_bin_attr; + } if (uevent) { + dev_set_uevent_suppress(f_dev, false); + dev_dbg(f_dev, "firmware: requesting %s\n", fw_priv->fw_id); if (timeout != MAX_SCHEDULE_TIMEOUT) mod_timer(&fw_priv->timeout, round_jiffies_up(jiffies + timeout)); @@ -577,7 +555,13 @@ static int _request_firmware(const struct firmware *firmware, fw_priv->fw = NULL; mutex_unlock(&fw_lock); - fw_destroy_instance(fw_priv); + device_remove_file(f_dev, &dev_attr_loading); +err_del_bin_attr: + device_remove_bin_file(f_dev, &firmware_attr_data); +err_del_dev: + device_del(f_dev); +err_put_dev: + put_device(f_dev); return retval; } @@ -600,17 +584,19 @@ int request_firmware(const struct firmware **firmware_p, const char *name, struct device *device) { + struct firmware_priv *fw_priv; int ret; - ret = _request_firmware_prepare(firmware_p, name, device); - if (ret <= 0) - return ret; + fw_priv = _request_firmware_prepare(firmware_p, name, device, true, + false); + if (IS_ERR_OR_NULL(fw_priv)) + return PTR_RET(fw_priv); ret = usermodehelper_read_trylock(); if (WARN_ON(ret)) { dev_err(device, "firmware: %s will not be loaded\n", name); } else { - ret = _request_firmware(*firmware_p, name, device, true, false, + ret = _request_firmware_load(fw_priv, true, firmware_loading_timeout()); usermodehelper_read_unlock(); } @@ -648,6 +634,7 @@ static int request_firmware_work_func(void *arg) { struct firmware_work *fw_work = arg; const struct firmware *fw; + struct firmware_priv *fw_priv; long timeout; int ret; @@ -656,14 +643,16 @@ static int request_firmware_work_func(void *arg) return 0; } - ret = _request_firmware_prepare(&fw, fw_work->name, fw_work->device); - if (ret <= 0) + fw_priv = _request_firmware_prepare(&fw, fw_work->name, fw_work->device, + fw_work->uevent, true); + if (IS_ERR_OR_NULL(fw_priv)) { + ret = PTR_RET(fw_priv); goto out; + } timeout = usermodehelper_read_lock_wait(firmware_loading_timeout()); if (timeout) { - ret = _request_firmware(fw, fw_work->name, fw_work->device, - fw_work->uevent, true, timeout); + ret = _request_firmware_load(fw_priv, fw_work->uevent, timeout); usermodehelper_read_unlock(); } else { dev_dbg(fw_work->device, "firmware: %s loading timed out\n", -- cgit v0.10.2 From a36cf844c543c6193445a7b1492d16e5a8cf376e Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Wed, 28 Mar 2012 23:31:00 +0200 Subject: firmware_class: Move request_firmware_nowait() to workqueues Oddly enough a work_struct was already part of the firmware_work structure but nobody was using it. Instead of creating a new kthread for each request_firmware_nowait() call just schedule the work on the system workqueue. This should avoid some overhead in forking new threads when they're not strictly necessary. Signed-off-by: Stephen Boyd Acked-by: Greg Kroah-Hartman Signed-off-by: Rafael J. Wysocki diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c index ae00a2f..5401814 100644 --- a/drivers/base/firmware_class.c +++ b/drivers/base/firmware_class.c @@ -16,10 +16,11 @@ #include #include #include -#include +#include #include #include #include +#include #define to_dev(obj) container_of(obj, struct device, kobj) @@ -630,19 +631,15 @@ struct firmware_work { bool uevent; }; -static int request_firmware_work_func(void *arg) +static void request_firmware_work_func(struct work_struct *work) { - struct firmware_work *fw_work = arg; + struct firmware_work *fw_work; const struct firmware *fw; struct firmware_priv *fw_priv; long timeout; int ret; - if (!arg) { - WARN_ON(1); - return 0; - } - + fw_work = container_of(work, struct firmware_work, work); fw_priv = _request_firmware_prepare(&fw, fw_work->name, fw_work->device, fw_work->uevent, true); if (IS_ERR_OR_NULL(fw_priv)) { @@ -667,8 +664,6 @@ static int request_firmware_work_func(void *arg) module_put(fw_work->module); kfree(fw_work); - - return ret; } /** @@ -694,7 +689,6 @@ request_firmware_nowait( const char *name, struct device *device, gfp_t gfp, void *context, void (*cont)(const struct firmware *fw, void *context)) { - struct task_struct *task; struct firmware_work *fw_work; fw_work = kzalloc(sizeof (struct firmware_work), gfp); @@ -713,15 +707,8 @@ request_firmware_nowait( return -EFAULT; } - task = kthread_run(request_firmware_work_func, fw_work, - "firmware/%s", name); - if (IS_ERR(task)) { - fw_work->cont(NULL, fw_work->context); - module_put(fw_work->module); - kfree(fw_work); - return PTR_ERR(task); - } - + INIT_WORK(&fw_work->work, request_firmware_work_func); + schedule_work(&fw_work->work); return 0; } -- cgit v0.10.2 From c4772d192c70b61d52262b0db76f7abd8aeb51c6 Mon Sep 17 00:00:00 2001 From: MyungJoo Ham Date: Wed, 28 Mar 2012 23:31:24 +0200 Subject: PM / QoS: add pm_qos_update_request_timeout() API The new API, pm_qos_update_request_timeout() is to provide a timeout with pm_qos_update_request. For example, pm_qos_update_request_timeout(req, 100, 1000), means that QoS request on req with value 100 will be active for 1000 microseconds. After 1000 microseconds, the QoS request thru req is reset. If there were another pm_qos_update_request(req, x) during the 1000 us, this new request with value x will override as this is another request on the same req handle. A new request on the same req handle will always override the previous request whether it is the conventional request or it is the new timeout request. Signed-off-by: MyungJoo Ham Signed-off-by: Kyungmin Park Acked-by: Mark Gross Signed-off-by: Rafael J. Wysocki diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h index 2e9191a..233149c 100644 --- a/include/linux/pm_qos.h +++ b/include/linux/pm_qos.h @@ -8,6 +8,7 @@ #include #include #include +#include enum { PM_QOS_RESERVED = 0, @@ -29,6 +30,7 @@ enum { struct pm_qos_request { struct plist_node node; int pm_qos_class; + struct delayed_work work; /* for pm_qos_update_request_timeout */ }; struct dev_pm_qos_request { @@ -73,6 +75,8 @@ void pm_qos_add_request(struct pm_qos_request *req, int pm_qos_class, s32 value); void pm_qos_update_request(struct pm_qos_request *req, s32 new_value); +void pm_qos_update_request_timeout(struct pm_qos_request *req, + s32 new_value, unsigned long timeout_us); void pm_qos_remove_request(struct pm_qos_request *req); int pm_qos_request(int pm_qos_class); diff --git a/kernel/power/qos.c b/kernel/power/qos.c index d6d6dbd..6a031e6 100644 --- a/kernel/power/qos.c +++ b/kernel/power/qos.c @@ -230,6 +230,21 @@ int pm_qos_request_active(struct pm_qos_request *req) EXPORT_SYMBOL_GPL(pm_qos_request_active); /** + * pm_qos_work_fn - the timeout handler of pm_qos_update_request_timeout + * @work: work struct for the delayed work (timeout) + * + * This cancels the timeout request by falling back to the default at timeout. + */ +static void pm_qos_work_fn(struct work_struct *work) +{ + struct pm_qos_request *req = container_of(to_delayed_work(work), + struct pm_qos_request, + work); + + pm_qos_update_request(req, PM_QOS_DEFAULT_VALUE); +} + +/** * pm_qos_add_request - inserts new qos request into the list * @req: pointer to a preallocated handle * @pm_qos_class: identifies which list of qos request to use @@ -253,6 +268,7 @@ void pm_qos_add_request(struct pm_qos_request *req, return; } req->pm_qos_class = pm_qos_class; + INIT_DELAYED_WORK(&req->work, pm_qos_work_fn); pm_qos_update_target(pm_qos_array[pm_qos_class]->constraints, &req->node, PM_QOS_ADD_REQ, value); } @@ -279,6 +295,9 @@ void pm_qos_update_request(struct pm_qos_request *req, return; } + if (delayed_work_pending(&req->work)) + cancel_delayed_work_sync(&req->work); + if (new_value != req->node.prio) pm_qos_update_target( pm_qos_array[req->pm_qos_class]->constraints, @@ -287,6 +306,34 @@ void pm_qos_update_request(struct pm_qos_request *req, EXPORT_SYMBOL_GPL(pm_qos_update_request); /** + * pm_qos_update_request_timeout - modifies an existing qos request temporarily. + * @req : handle to list element holding a pm_qos request to use + * @new_value: defines the temporal qos request + * @timeout_us: the effective duration of this qos request in usecs. + * + * After timeout_us, this qos request is cancelled automatically. + */ +void pm_qos_update_request_timeout(struct pm_qos_request *req, s32 new_value, + unsigned long timeout_us) +{ + if (!req) + return; + if (WARN(!pm_qos_request_active(req), + "%s called for unknown object.", __func__)) + return; + + if (delayed_work_pending(&req->work)) + cancel_delayed_work_sync(&req->work); + + if (new_value != req->node.prio) + pm_qos_update_target( + pm_qos_array[req->pm_qos_class]->constraints, + &req->node, PM_QOS_UPDATE_REQ, new_value); + + schedule_delayed_work(&req->work, usecs_to_jiffies(timeout_us)); +} + +/** * pm_qos_remove_request - modifies an existing qos request * @req: handle to request list element * @@ -305,6 +352,9 @@ void pm_qos_remove_request(struct pm_qos_request *req) return; } + if (delayed_work_pending(&req->work)) + cancel_delayed_work_sync(&req->work); + pm_qos_update_target(pm_qos_array[req->pm_qos_class]->constraints, &req->node, PM_QOS_REMOVE_REQ, PM_QOS_DEFAULT_VALUE); -- cgit v0.10.2 From 0b5f9c005def154f9c21f9be0223b65b50d54368 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Thu, 29 Mar 2012 15:38:30 +1030 Subject: remove references to cpu_*_map in arch/ This has been obsolescent for a while; time for the final push. In adjacent context, replaced old cpus_* with cpumask_*. Signed-off-by: Rusty Russell Acked-by: David S. Miller (arch/sparc) Acked-by: Chris Metcalf (arch/tile) Cc: user-mode-linux-devel@lists.sourceforge.net Cc: Russell King Cc: linux-arm-kernel@lists.infradead.org Cc: Richard Kuo Cc: linux-hexagon@vger.kernel.org Cc: Ralf Baechle Cc: linux-mips@linux-mips.org Cc: Kyle McMartin Cc: Helge Deller Cc: sparclinux@vger.kernel.org diff --git a/arch/arm/kernel/kprobes.c b/arch/arm/kernel/kprobes.c index 129c116..a79e5c7 100644 --- a/arch/arm/kernel/kprobes.c +++ b/arch/arm/kernel/kprobes.c @@ -127,7 +127,7 @@ void __kprobes arch_arm_kprobe(struct kprobe *p) flush_insns(addr, sizeof(u16)); } else if (addr & 2) { /* A 32-bit instruction spanning two words needs special care */ - stop_machine(set_t32_breakpoint, (void *)addr, &cpu_online_map); + stop_machine(set_t32_breakpoint, (void *)addr, cpu_online_mask); } else { /* Word aligned 32-bit instruction can be written atomically */ u32 bkp = KPROBE_THUMB32_BREAKPOINT_INSTRUCTION; @@ -190,7 +190,7 @@ int __kprobes __arch_disarm_kprobe(void *p) void __kprobes arch_disarm_kprobe(struct kprobe *p) { - stop_machine(__arch_disarm_kprobe, p, &cpu_online_map); + stop_machine(__arch_disarm_kprobe, p, cpu_online_mask); } void __kprobes arch_remove_kprobe(struct kprobe *p) diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 8f8cce2..9a4bdde 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -354,7 +354,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus) * re-initialize the map in platform_smp_prepare_cpus() if * present != possible (e.g. physical hotplug). */ - init_cpu_present(&cpu_possible_map); + init_cpu_present(cpu_possible_mask); /* * Initialise the SCU if there are more than one CPU @@ -586,8 +586,9 @@ void smp_send_stop(void) unsigned long timeout; if (num_online_cpus() > 1) { - cpumask_t mask = cpu_online_map; - cpu_clear(smp_processor_id(), mask); + struct cpumask mask; + cpumask_copy(&mask, cpu_online_mask); + cpumask_clear_cpu(smp_processor_id(), &mask); smp_cross_call(&mask, IPI_CPU_STOP); } diff --git a/arch/hexagon/kernel/smp.c b/arch/hexagon/kernel/smp.c index 15d1fd2..9b44a9e 100644 --- a/arch/hexagon/kernel/smp.c +++ b/arch/hexagon/kernel/smp.c @@ -35,7 +35,7 @@ #define BASE_IPI_IRQ 26 /* - * cpu_possible_map needs to be filled out prior to setup_per_cpu_areas + * cpu_possible_mask needs to be filled out prior to setup_per_cpu_areas * (which is prior to any of our smp_prepare_cpu crap), in order to set * up the... per_cpu areas. */ @@ -208,7 +208,7 @@ int __cpuinit __cpu_up(unsigned int cpu) stack_start = ((void *) thread) + THREAD_SIZE; __vmstart(start_secondary, stack_start); - while (!cpu_isset(cpu, cpu_online_map)) + while (!cpu_online(cpu)) barrier(); return 0; @@ -229,7 +229,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus) /* Right now, let's just fake it. */ for (i = 0; i < max_cpus; i++) - cpu_set(i, cpu_present_map); + set_cpu_present(i, true); /* Also need to register the interrupts for IPI */ if (max_cpus > 1) @@ -269,5 +269,5 @@ void smp_start_cpus(void) int i; for (i = 0; i < NR_CPUS; i++) - cpu_set(i, cpu_possible_map); + set_cpu_possible(i, true); } diff --git a/arch/mips/cavium-octeon/smp.c b/arch/mips/cavium-octeon/smp.c index c3e2b85..ef56d8a 100644 --- a/arch/mips/cavium-octeon/smp.c +++ b/arch/mips/cavium-octeon/smp.c @@ -268,7 +268,7 @@ static int octeon_cpu_disable(void) spin_lock(&smp_reserve_lock); - cpu_clear(cpu, cpu_online_map); + set_cpu_online(cpu, false); cpu_clear(cpu, cpu_callin_map); local_irq_disable(); fixup_irqs(); diff --git a/arch/mips/kernel/mips-mt-fpaff.c b/arch/mips/kernel/mips-mt-fpaff.c index 802e616..33f63ba 100644 --- a/arch/mips/kernel/mips-mt-fpaff.c +++ b/arch/mips/kernel/mips-mt-fpaff.c @@ -173,7 +173,7 @@ asmlinkage long mipsmt_sys_sched_getaffinity(pid_t pid, unsigned int len, if (retval) goto out_unlock; - cpus_and(mask, p->thread.user_cpus_allowed, cpu_possible_map); + cpumask_and(&mask, &p->thread.user_cpus_allowed, cpu_possible_mask); out_unlock: read_unlock(&tasklist_lock); diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c index e309665..f8b2c59 100644 --- a/arch/mips/kernel/proc.c +++ b/arch/mips/kernel/proc.c @@ -25,7 +25,7 @@ static int show_cpuinfo(struct seq_file *m, void *v) int i; #ifdef CONFIG_SMP - if (!cpu_isset(n, cpu_online_map)) + if (!cpu_online(n)) return 0; #endif diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c index ca67356..3046e29 100644 --- a/arch/mips/kernel/smp-bmips.c +++ b/arch/mips/kernel/smp-bmips.c @@ -317,7 +317,7 @@ static int bmips_cpu_disable(void) pr_info("SMP: CPU%d is offline\n", cpu); - cpu_clear(cpu, cpu_online_map); + set_cpu_online(cpu, false); cpu_clear(cpu, cpu_callin_map); local_flush_tlb_all(); diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c index 9c1cce9..ba9376b 100644 --- a/arch/mips/kernel/smp.c +++ b/arch/mips/kernel/smp.c @@ -148,7 +148,7 @@ static void stop_this_cpu(void *dummy) /* * Remove this CPU: */ - cpu_clear(smp_processor_id(), cpu_online_map); + set_cpu_online(smp_processor_id(), false); for (;;) { if (cpu_wait) (*cpu_wait)(); /* Wait if available. */ @@ -174,7 +174,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus) mp_ops->prepare_cpus(max_cpus); set_cpu_sibling_map(0); #ifndef CONFIG_HOTPLUG_CPU - init_cpu_present(&cpu_possible_map); + init_cpu_present(cpu_possible_mask); #endif } @@ -248,7 +248,7 @@ int __cpuinit __cpu_up(unsigned int cpu) while (!cpu_isset(cpu, cpu_callin_map)) udelay(100); - cpu_set(cpu, cpu_online_map); + set_cpu_online(cpu, true); return 0; } @@ -320,13 +320,12 @@ void flush_tlb_mm(struct mm_struct *mm) if ((atomic_read(&mm->mm_users) != 1) || (current->mm != mm)) { smp_on_other_tlbs(flush_tlb_mm_ipi, mm); } else { - cpumask_t mask = cpu_online_map; unsigned int cpu; - cpu_clear(smp_processor_id(), mask); - for_each_cpu_mask(cpu, mask) - if (cpu_context(cpu, mm)) + for_each_online_cpu(cpu) { + if (cpu != smp_processor_id() && cpu_context(cpu, mm)) cpu_context(cpu, mm) = 0; + } } local_flush_tlb_mm(mm); @@ -360,13 +359,12 @@ void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned l smp_on_other_tlbs(flush_tlb_range_ipi, &fd); } else { - cpumask_t mask = cpu_online_map; unsigned int cpu; - cpu_clear(smp_processor_id(), mask); - for_each_cpu_mask(cpu, mask) - if (cpu_context(cpu, mm)) + for_each_online_cpu(cpu) { + if (cpu != smp_processor_id() && cpu_context(cpu, mm)) cpu_context(cpu, mm) = 0; + } } local_flush_tlb_range(vma, start, end); preempt_enable(); @@ -407,13 +405,12 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long page) smp_on_other_tlbs(flush_tlb_page_ipi, &fd); } else { - cpumask_t mask = cpu_online_map; unsigned int cpu; - cpu_clear(smp_processor_id(), mask); - for_each_cpu_mask(cpu, mask) - if (cpu_context(cpu, vma->vm_mm)) + for_each_online_cpu(cpu) { + if (cpu != smp_processor_id() && cpu_context(cpu, vma->vm_mm)) cpu_context(cpu, vma->vm_mm) = 0; + } } local_flush_tlb_page(vma, page); preempt_enable(); diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c index c4f75bb..f5dd38f 100644 --- a/arch/mips/kernel/smtc.c +++ b/arch/mips/kernel/smtc.c @@ -291,7 +291,7 @@ static void smtc_configure_tlb(void) * possibly leave some TCs/VPEs as "slave" processors. * * Use c0_MVPConf0 to find out how many TCs are available, setting up - * cpu_possible_map and the logical/physical mappings. + * cpu_possible_mask and the logical/physical mappings. */ int __init smtc_build_cpu_map(int start_cpu_slot) diff --git a/arch/mips/mm/c-octeon.c b/arch/mips/mm/c-octeon.c index 1f9ca07..47037ec 100644 --- a/arch/mips/mm/c-octeon.c +++ b/arch/mips/mm/c-octeon.c @@ -80,9 +80,9 @@ static void octeon_flush_icache_all_cores(struct vm_area_struct *vma) if (vma) mask = *mm_cpumask(vma->vm_mm); else - mask = cpu_online_map; - cpu_clear(cpu, mask); - for_each_cpu_mask(cpu, mask) + mask = *cpu_online_mask; + cpumask_clear_cpu(cpu, &mask); + for_each_cpu(cpu, &mask) octeon_send_ipi_single(cpu, SMP_ICACHE_FLUSH); preempt_enable(); diff --git a/arch/mips/netlogic/common/smp.c b/arch/mips/netlogic/common/smp.c index db17f49..fab316d 100644 --- a/arch/mips/netlogic/common/smp.c +++ b/arch/mips/netlogic/common/smp.c @@ -165,7 +165,7 @@ void __init nlm_smp_setup(void) cpu_set(boot_cpu, phys_cpu_present_map); __cpu_number_map[boot_cpu] = 0; __cpu_logical_map[0] = boot_cpu; - cpu_set(0, cpu_possible_map); + set_cpu_possible(0, true); num_cpus = 1; for (i = 0; i < NR_CPUS; i++) { @@ -177,14 +177,14 @@ void __init nlm_smp_setup(void) cpu_set(i, phys_cpu_present_map); __cpu_number_map[i] = num_cpus; __cpu_logical_map[num_cpus] = i; - cpu_set(num_cpus, cpu_possible_map); + set_cpu_possible(num_cpus, true); ++num_cpus; } } pr_info("Phys CPU present map: %lx, possible map %lx\n", (unsigned long)phys_cpu_present_map.bits[0], - (unsigned long)cpu_possible_map.bits[0]); + (unsigned long)cpumask_bits(cpu_possible_mask)[0]); pr_info("Detected %i Slave CPU(s)\n", num_cpus); nlm_set_nmi_handler(nlm_boot_secondary_cpus); diff --git a/arch/mips/pmc-sierra/yosemite/smp.c b/arch/mips/pmc-sierra/yosemite/smp.c index 2608752..00a0d2e 100644 --- a/arch/mips/pmc-sierra/yosemite/smp.c +++ b/arch/mips/pmc-sierra/yosemite/smp.c @@ -155,10 +155,10 @@ static void __init yos_smp_setup(void) { int i; - cpus_clear(cpu_possible_map); + init_cpu_possible(cpu_none_mask); for (i = 0; i < 2; i++) { - cpu_set(i, cpu_possible_map); + set_cpu_possible(i, true); __cpu_number_map[i] = i; __cpu_logical_map[i] = i; } @@ -169,7 +169,7 @@ static void __init yos_prepare_cpus(unsigned int max_cpus) /* * Be paranoid. Enable the IPI only if we're really about to go SMP. */ - if (cpus_weight(cpu_possible_map)) + if (num_possible_cpus()) set_c0_status(STATUSF_IP5); } diff --git a/arch/mips/sgi-ip27/ip27-smp.c b/arch/mips/sgi-ip27/ip27-smp.c index c6851df..735b43b 100644 --- a/arch/mips/sgi-ip27/ip27-smp.c +++ b/arch/mips/sgi-ip27/ip27-smp.c @@ -76,7 +76,7 @@ static int do_cpumask(cnodeid_t cnode, nasid_t nasid, int highest) /* Only let it join in if it's marked enabled */ if ((acpu->cpu_info.flags & KLINFO_ENABLE) && (tot_cpus_found != NR_CPUS)) { - cpu_set(cpuid, cpu_possible_map); + set_cpu_possible(cpuid, true); alloc_cpupda(cpuid, tot_cpus_found); cpus_found++; tot_cpus_found++; diff --git a/arch/mips/sibyte/bcm1480/smp.c b/arch/mips/sibyte/bcm1480/smp.c index d667875..63d2211 100644 --- a/arch/mips/sibyte/bcm1480/smp.c +++ b/arch/mips/sibyte/bcm1480/smp.c @@ -147,14 +147,13 @@ static void __init bcm1480_smp_setup(void) { int i, num; - cpus_clear(cpu_possible_map); - cpu_set(0, cpu_possible_map); + init_cpu_possible(cpumask_of(0)); __cpu_number_map[0] = 0; __cpu_logical_map[0] = 0; for (i = 1, num = 0; i < NR_CPUS; i++) { if (cfe_cpu_stop(i) == 0) { - cpu_set(i, cpu_possible_map); + set_cpu_possible(i, true); __cpu_number_map[i] = ++num; __cpu_logical_map[num] = i; } diff --git a/arch/mips/sibyte/sb1250/smp.c b/arch/mips/sibyte/sb1250/smp.c index 38e7f6b..285cfef 100644 --- a/arch/mips/sibyte/sb1250/smp.c +++ b/arch/mips/sibyte/sb1250/smp.c @@ -126,7 +126,7 @@ static void __cpuinit sb1250_boot_secondary(int cpu, struct task_struct *idle) /* * Use CFE to find out how many CPUs are available, setting up - * cpu_possible_map and the logical/physical mappings. + * cpu_possible_mask and the logical/physical mappings. * XXXKW will the boot CPU ever not be physical 0? * * Common setup before any secondaries are started @@ -135,14 +135,13 @@ static void __init sb1250_smp_setup(void) { int i, num; - cpus_clear(cpu_possible_map); - cpu_set(0, cpu_possible_map); + init_cpu_possible(cpumask_of(0)); __cpu_number_map[0] = 0; __cpu_logical_map[0] = 0; for (i = 1, num = 0; i < NR_CPUS; i++) { if (cfe_cpu_stop(i) == 0) { - cpu_set(i, cpu_possible_map); + set_cpu_possible(i, true); __cpu_number_map[i] = ++num; __cpu_logical_map[num] = i; } diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c index a19c8a0..35e4367 100644 --- a/arch/sparc/kernel/leon_kernel.c +++ b/arch/sparc/kernel/leon_kernel.c @@ -104,11 +104,11 @@ static int irq_choose_cpu(const struct cpumask *affinity) { cpumask_t mask; - cpus_and(mask, cpu_online_map, *affinity); - if (cpus_equal(mask, cpu_online_map) || cpus_empty(mask)) + cpumask_and(&mask, cpu_online_mask, affinity); + if (cpumask_equal(&mask, cpu_online_mask) || cpumask_empty(&mask)) return boot_cpu_id; else - return first_cpu(mask); + return cpumask_first(&mask); } #else #define irq_choose_cpu(affinity) boot_cpu_id diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c index 5f85d8b..5124093 100644 --- a/arch/tile/kernel/setup.c +++ b/arch/tile/kernel/setup.c @@ -1186,7 +1186,7 @@ static void __init setup_cpu_maps(void) sizeof(cpu_lotar_map)); if (rc < 0) { pr_err("warning: no HV_INQ_TILES_LOTAR; using AVAIL\n"); - cpu_lotar_map = cpu_possible_map; + cpu_lotar_map = *cpu_possible_mask; } #if CHIP_HAS_CBOX_HOME_MAP() @@ -1196,9 +1196,9 @@ static void __init setup_cpu_maps(void) sizeof(hash_for_home_map)); if (rc < 0) early_panic("hv_inquire_tiles(HFH_CACHE) failed: rc %d\n", rc); - cpumask_or(&cpu_cacheable_map, &cpu_possible_map, &hash_for_home_map); + cpumask_or(&cpu_cacheable_map, cpu_possible_mask, &hash_for_home_map); #else - cpu_cacheable_map = cpu_possible_map; + cpu_cacheable_map = *cpu_possible_mask; #endif } diff --git a/arch/um/kernel/skas/process.c b/arch/um/kernel/skas/process.c index 2e9852c..0a9e57e 100644 --- a/arch/um/kernel/skas/process.c +++ b/arch/um/kernel/skas/process.c @@ -41,7 +41,7 @@ static int __init start_kernel_proc(void *unused) cpu_tasks[0].pid = pid; cpu_tasks[0].task = current; #ifdef CONFIG_SMP - cpu_online_map = cpumask_of_cpu(0); + init_cpu_online(get_cpu_mask(0)); #endif start_kernel(); return 0; diff --git a/arch/um/kernel/smp.c b/arch/um/kernel/smp.c index 155206a..6f588e1 100644 --- a/arch/um/kernel/smp.c +++ b/arch/um/kernel/smp.c @@ -76,7 +76,7 @@ static int idle_proc(void *cpup) cpu_relax(); notify_cpu_starting(cpu); - cpu_set(cpu, cpu_online_map); + set_cpu_online(cpu, true); default_idle(); return 0; } @@ -110,8 +110,7 @@ void smp_prepare_cpus(unsigned int maxcpus) for (i = 0; i < ncpus; ++i) set_cpu_possible(i, true); - cpu_clear(me, cpu_online_map); - cpu_set(me, cpu_online_map); + set_cpu_online(me, true); cpu_set(me, cpu_callin_map); err = os_pipe(cpu_data[me].ipi_pipe, 1, 1); @@ -138,13 +137,13 @@ void smp_prepare_cpus(unsigned int maxcpus) void smp_prepare_boot_cpu(void) { - cpu_set(smp_processor_id(), cpu_online_map); + set_cpu_online(smp_processor_id(), true); } int __cpu_up(unsigned int cpu) { cpu_set(cpu, smp_commenced_mask); - while (!cpu_isset(cpu, cpu_online_map)) + while (!cpu_online(cpu)) mb(); return 0; } -- cgit v0.10.2 From 88d8cd52bc9dd7696617b31ea91263d6c47f22e4 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Thu, 29 Mar 2012 15:38:30 +1030 Subject: drivers/cpufreq/db8500-cpufreq: remove references to cpu_*_map. This has been obsolescent for a while; time for the final push. Signed-off-by: Rusty Russell Cc: Dave Jones Cc: cpufreq@vger.kernel.org Cc: Sundar Iyer Cc: Martin Persson Cc: Jonas Aaberg diff --git a/drivers/cpufreq/db8500-cpufreq.c b/drivers/cpufreq/db8500-cpufreq.c index a22ffa5..0bf1b89 100644 --- a/drivers/cpufreq/db8500-cpufreq.c +++ b/drivers/cpufreq/db8500-cpufreq.c @@ -142,7 +142,7 @@ static int __cpuinit db8500_cpufreq_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = 20 * 1000; /* in ns */ /* policy sharing between dual CPUs */ - cpumask_copy(policy->cpus, &cpu_present_map); + cpumask_copy(policy->cpus, cpu_present_mask); policy->shared_type = CPUFREQ_SHARED_TYPE_ALL; -- cgit v0.10.2 From 5f054e31c63be774bf1ce252f20d56012a00f8a5 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Thu, 29 Mar 2012 15:38:31 +1030 Subject: documentation: remove references to cpu_*_map. This has been obsolescent for a while, fix documentation and misc comments. Signed-off-by: Rusty Russell diff --git a/Documentation/cgroups/cpusets.txt b/Documentation/cgroups/cpusets.txt index 5c51ed4..cefd3d8 100644 --- a/Documentation/cgroups/cpusets.txt +++ b/Documentation/cgroups/cpusets.txt @@ -217,7 +217,7 @@ and name space for cpusets, with a minimum of additional kernel code. The cpus and mems files in the root (top_cpuset) cpuset are read-only. The cpus file automatically tracks the value of -cpu_online_map using a CPU hotplug notifier, and the mems file +cpu_online_mask using a CPU hotplug notifier, and the mems file automatically tracks the value of node_states[N_HIGH_MEMORY]--i.e., nodes with memory--using the cpuset_track_online_nodes() hook. diff --git a/Documentation/cpu-hotplug.txt b/Documentation/cpu-hotplug.txt index a20bfd4..66ef8f3 100644 --- a/Documentation/cpu-hotplug.txt +++ b/Documentation/cpu-hotplug.txt @@ -47,7 +47,7 @@ maxcpus=n Restrict boot time cpus to n. Say if you have 4 cpus, using other cpus later online, read FAQ's for more info. additional_cpus=n (*) Use this to limit hotpluggable cpus. This option sets - cpu_possible_map = cpu_present_map + additional_cpus + cpu_possible_mask = cpu_present_mask + additional_cpus cede_offline={"off","on"} Use this option to disable/enable putting offlined processors to an extended H_CEDE state on @@ -64,11 +64,11 @@ should only rely on this to count the # of cpus, but *MUST* not rely on the apicid values in those tables for disabled apics. In the event BIOS doesn't mark such hot-pluggable cpus as disabled entries, one could use this parameter "additional_cpus=x" to represent those cpus in the -cpu_possible_map. +cpu_possible_mask. possible_cpus=n [s390,x86_64] use this to set hotpluggable cpus. This option sets possible_cpus bits in - cpu_possible_map. Thus keeping the numbers of bits set + cpu_possible_mask. Thus keeping the numbers of bits set constant even if the machine gets rebooted. CPU maps and such @@ -76,7 +76,7 @@ CPU maps and such [More on cpumaps and primitive to manipulate, please check include/linux/cpumask.h that has more descriptive text.] -cpu_possible_map: Bitmap of possible CPUs that can ever be available in the +cpu_possible_mask: Bitmap of possible CPUs that can ever be available in the system. This is used to allocate some boot time memory for per_cpu variables that aren't designed to grow/shrink as CPUs are made available or removed. Once set during boot time discovery phase, the map is static, i.e no bits @@ -84,13 +84,13 @@ are added or removed anytime. Trimming it accurately for your system needs upfront can save some boot time memory. See below for how we use heuristics in x86_64 case to keep this under check. -cpu_online_map: Bitmap of all CPUs currently online. Its set in __cpu_up() +cpu_online_mask: Bitmap of all CPUs currently online. Its set in __cpu_up() after a cpu is available for kernel scheduling and ready to receive interrupts from devices. Its cleared when a cpu is brought down using __cpu_disable(), before which all OS services including interrupts are migrated to another target CPU. -cpu_present_map: Bitmap of CPUs currently present in the system. Not all +cpu_present_mask: Bitmap of CPUs currently present in the system. Not all of them may be online. When physical hotplug is processed by the relevant subsystem (e.g ACPI) can change and new bit either be added or removed from the map depending on the event is hot-add/hot-remove. There are currently @@ -99,22 +99,22 @@ at which time hotplug is disabled. You really dont need to manipulate any of the system cpu maps. They should be read-only for most use. When setting up per-cpu resources almost always use -cpu_possible_map/for_each_possible_cpu() to iterate. +cpu_possible_mask/for_each_possible_cpu() to iterate. Never use anything other than cpumask_t to represent bitmap of CPUs. #include - for_each_possible_cpu - Iterate over cpu_possible_map - for_each_online_cpu - Iterate over cpu_online_map - for_each_present_cpu - Iterate over cpu_present_map + for_each_possible_cpu - Iterate over cpu_possible_mask + for_each_online_cpu - Iterate over cpu_online_mask + for_each_present_cpu - Iterate over cpu_present_mask for_each_cpu_mask(x,mask) - Iterate over some random collection of cpu mask. #include get_online_cpus() and put_online_cpus(): The above calls are used to inhibit cpu hotplug operations. While the -cpu_hotplug.refcount is non zero, the cpu_online_map will not change. +cpu_hotplug.refcount is non zero, the cpu_online_mask will not change. If you merely need to avoid cpus going away, you could also use preempt_disable() and preempt_enable() for those sections. Just remember the critical section cannot call any diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c index 4087a56..50d438d 100644 --- a/arch/alpha/kernel/smp.c +++ b/arch/alpha/kernel/smp.c @@ -450,7 +450,7 @@ setup_smp(void) smp_num_probed = 1; } - printk(KERN_INFO "SMP: %d CPUs probed -- cpu_present_map = %lx\n", + printk(KERN_INFO "SMP: %d CPUs probed -- cpu_present_mask = %lx\n", smp_num_probed, cpumask_bits(cpu_present_mask)[0]); } diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c index ac795d3..6f38b61 100644 --- a/arch/ia64/kernel/acpi.c +++ b/arch/ia64/kernel/acpi.c @@ -839,7 +839,7 @@ static __init int setup_additional_cpus(char *s) early_param("additional_cpus", setup_additional_cpus); /* - * cpu_possible_map should be static, it cannot change as CPUs + * cpu_possible_mask should be static, it cannot change as CPUs * are onlined, or offlined. The reason is per-cpu data-structures * are allocated by some modules at init time, and dont expect to * do this dynamically on cpu arrival/departure. diff --git a/arch/mips/cavium-octeon/smp.c b/arch/mips/cavium-octeon/smp.c index ef56d8a..97e7ce9 100644 --- a/arch/mips/cavium-octeon/smp.c +++ b/arch/mips/cavium-octeon/smp.c @@ -78,7 +78,7 @@ static inline void octeon_send_ipi_mask(const struct cpumask *mask, } /** - * Detect available CPUs, populate cpu_possible_map + * Detect available CPUs, populate cpu_possible_mask */ static void octeon_smp_hotplug_setup(void) { diff --git a/arch/mips/pmc-sierra/yosemite/smp.c b/arch/mips/pmc-sierra/yosemite/smp.c index 00a0d2e..b71fae2 100644 --- a/arch/mips/pmc-sierra/yosemite/smp.c +++ b/arch/mips/pmc-sierra/yosemite/smp.c @@ -146,7 +146,7 @@ static void __cpuinit yos_boot_secondary(int cpu, struct task_struct *idle) } /* - * Detect available CPUs, populate cpu_possible_map before smp_init + * Detect available CPUs, populate cpu_possible_mask before smp_init * * We don't want to start the secondary CPU yet nor do we have a nice probing * feature in PMON so we just assume presence of the secondary core. diff --git a/arch/mips/sibyte/bcm1480/smp.c b/arch/mips/sibyte/bcm1480/smp.c index 63d2211..de88e22 100644 --- a/arch/mips/sibyte/bcm1480/smp.c +++ b/arch/mips/sibyte/bcm1480/smp.c @@ -138,7 +138,7 @@ static void __cpuinit bcm1480_boot_secondary(int cpu, struct task_struct *idle) /* * Use CFE to find out how many CPUs are available, setting up - * cpu_possible_map and the logical/physical mappings. + * cpu_possible_mask and the logical/physical mappings. * XXXKW will the boot CPU ever not be physical 0? * * Common setup before any secondaries are started diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c index 5124093..92a94f4 100644 --- a/arch/tile/kernel/setup.c +++ b/arch/tile/kernel/setup.c @@ -1100,7 +1100,7 @@ EXPORT_SYMBOL(hash_for_home_map); /* * cpu_cacheable_map lists all the cpus whose caches the hypervisor can - * flush on our behalf. It is set to cpu_possible_map OR'ed with + * flush on our behalf. It is set to cpu_possible_mask OR'ed with * hash_for_home_map, and it is what should be passed to * hv_flush_remote() to flush all caches. Note that if there are * dedicated hypervisor driver tiles that have authorized use of their diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index b132ade..4f51beb 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -967,7 +967,7 @@ void xen_setup_shared_info(void) xen_setup_mfn_list_list(); } -/* This is called once we have the cpu_possible_map */ +/* This is called once we have the cpu_possible_mask */ void xen_setup_vcpu_info_placement(void) { int cpu; diff --git a/init/Kconfig b/init/Kconfig index 72f33fa..6cfd71d 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1414,8 +1414,8 @@ endif # MODULES config INIT_ALL_POSSIBLE bool help - Back when each arch used to define their own cpu_online_map and - cpu_possible_map, some of them chose to initialize cpu_possible_map + Back when each arch used to define their own cpu_online_mask and + cpu_possible_mask, some of them chose to initialize cpu_possible_mask with all 1s, and others with all 0s. When they were centralised, it was better to provide this option than to break all the archs and have several arch maintainers pursuing me down dark alleys. diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 1010cc6..eedeebe 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -270,11 +270,11 @@ static struct file_system_type cpuset_fs_type = { * are online. If none are online, walk up the cpuset hierarchy * until we find one that does have some online cpus. If we get * all the way to the top and still haven't found any online cpus, - * return cpu_online_map. Or if passed a NULL cs from an exit'ing - * task, return cpu_online_map. + * return cpu_online_mask. Or if passed a NULL cs from an exit'ing + * task, return cpu_online_mask. * * One way or another, we guarantee to return some non-empty subset - * of cpu_online_map. + * of cpu_online_mask. * * Call with callback_mutex held. */ @@ -867,7 +867,7 @@ static int update_cpumask(struct cpuset *cs, struct cpuset *trialcs, int retval; int is_load_balanced; - /* top_cpuset.cpus_allowed tracks cpu_online_map; it's read-only */ + /* top_cpuset.cpus_allowed tracks cpu_online_mask; it's read-only */ if (cs == &top_cpuset) return -EACCES; @@ -2149,7 +2149,7 @@ void __init cpuset_init_smp(void) * * Description: Returns the cpumask_var_t cpus_allowed of the cpuset * attached to the specified @tsk. Guaranteed to return some non-empty - * subset of cpu_online_map, even if this means going outside the + * subset of cpu_online_mask, even if this means going outside the * tasks cpuset. **/ -- cgit v0.10.2 From 615399c84d1b8d8d8752629e5e5ab4e5044d6918 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Thu, 29 Mar 2012 15:38:31 +1030 Subject: cpumask: remove old cpu_*_map. These are obsolete: cpu_*_mask provides (const) pointers. Signed-off-by: Rusty Russell diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index 1ffdb98..a2c819d 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -764,12 +764,6 @@ static inline const struct cpumask *get_cpu_mask(unsigned int cpu) * */ #ifndef CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS -/* These strip const, as traditionally they weren't const. */ -#define cpu_possible_map (*(cpumask_t *)cpu_possible_mask) -#define cpu_online_map (*(cpumask_t *)cpu_online_mask) -#define cpu_present_map (*(cpumask_t *)cpu_present_mask) -#define cpu_active_map (*(cpumask_t *)cpu_active_mask) - #define cpumask_of_cpu(cpu) (*get_cpu_mask(cpu)) #define CPU_MASK_LAST_WORD BITMAP_LAST_WORD_MASK(NR_CPUS) -- cgit v0.10.2 From e9986f303dc0f285401de28cf96f42f4dd23a4a1 Mon Sep 17 00:00:00 2001 From: Vivek Goyal Date: Thu, 29 Mar 2012 10:09:44 +0200 Subject: virtio-blk: Call revalidate_disk() upon online disk resize If a virtio disk is open in guest and a disk resize operation is done, (virsh blockresize), new size is not visible to tools like "fdisk -l". This seems to be happening as we update only part->nr_sects and not bdev->bd_inode size. Call revalidate_disk() which should take care of it. I tested growing disk size of already open disk and it works for me. Signed-off-by: Vivek Goyal Signed-off-by: Jens Axboe diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index c4a60ba..0e4ef3d 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -351,6 +351,7 @@ static void virtblk_config_changed_work(struct work_struct *work) cap_str_10, cap_str_2); set_capacity(vblk->disk, capacity); + revalidate_disk(vblk->disk); done: mutex_unlock(&vblk->config_lock); } -- cgit v0.10.2 From 2e8b506310f6433d5558387fd568d4bfb1d6a799 Mon Sep 17 00:00:00 2001 From: Don Zickus Date: Wed, 28 Mar 2012 16:41:11 -0400 Subject: Bluetooth: btusb: typo in Broadcom SoftSailing id I was trying to backport the following commit to RHEL-6 From 0cea73465cd22373c5cd43a3edd25fbd4bb532ef Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Wed, 21 Sep 2011 11:37:15 +0200 Subject: [PATCH] btusb: add device entry for Broadcom SoftSailing and noticed it wasn't working on an HP Elitebook. Looking into the patch I noticed a very subtle typo in the ids. The patch has '0x05ac' instead of '0x0a5c'. A snippet of the lsusb -v output also shows this: Bus 002 Device 003: ID 0a5c:21e1 Broadcom Corp. Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 255 Vendor Specific Class bDeviceSubClass 1 bDeviceProtocol 1 bMaxPacketSize0 64 idVendor 0x0a5c Broadcom Corp. idProduct 0x21e1 bcdDevice 1.12 iManufacturer 1 Broadcom Corp iProduct 2 BCM20702A0 iSerial 3 60D819F0338C bNumConfigurations 1 Looking at other Broadcom ids, the fix matches them whereas the original patch matches Apple's ids. Tested on an HP Elitebook 8760w. The btusb binds and the userspace stuff loads correctly. Cc: Oliver Neukum Signed-off-by: Don Zickus Acked-by: Marcel Holtmann Signed-off-by: Johan Hedberg diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index ba89cd0..3311b81 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -61,7 +61,7 @@ static struct usb_device_id btusb_table[] = { { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, /* Broadcom SoftSailing reporting vendor specific */ - { USB_DEVICE(0x05ac, 0x21e1) }, + { USB_DEVICE(0x0a5c, 0x21e1) }, /* Apple MacBookPro 7,1 */ { USB_DEVICE(0x05ac, 0x8213) }, -- cgit v0.10.2 From e841a36abb0f95ea356d52e4386b8e8f762e9c40 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 29 Mar 2012 15:02:55 +0800 Subject: regulator: Fix setting low power mode for wm831x aldo Set BIT[8] of LDO7 ON Control mode for low power mode. R16507 (407Bh) LDO7 ON Control BIT[8] LDO7_ON_MODE: LDO7 ON Operating Mode 0 = Normal mode 1 = Low Power mode Signed-off-by: Axel Lin Signed-off-by: Mark Brown diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c index f1e4ab0..641e9f6 100644 --- a/drivers/regulator/wm831x-ldo.c +++ b/drivers/regulator/wm831x-ldo.c @@ -506,22 +506,19 @@ static int wm831x_aldo_set_mode(struct regulator_dev *rdev, { struct wm831x_ldo *ldo = rdev_get_drvdata(rdev); struct wm831x *wm831x = ldo->wm831x; - int ctrl_reg = ldo->base + WM831X_LDO_CONTROL; int on_reg = ldo->base + WM831X_LDO_ON_CONTROL; int ret; switch (mode) { case REGULATOR_MODE_NORMAL: - ret = wm831x_set_bits(wm831x, on_reg, - WM831X_LDO7_ON_MODE, 0); + ret = wm831x_set_bits(wm831x, on_reg, WM831X_LDO7_ON_MODE, 0); if (ret < 0) return ret; break; case REGULATOR_MODE_IDLE: - ret = wm831x_set_bits(wm831x, ctrl_reg, - WM831X_LDO7_ON_MODE, + ret = wm831x_set_bits(wm831x, on_reg, WM831X_LDO7_ON_MODE, WM831X_LDO7_ON_MODE); if (ret < 0) return ret; -- cgit v0.10.2 From cee1a799eb044657922c4d63003d7bf71f8c8b8d Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 29 Mar 2012 10:47:36 +0800 Subject: regulator: Only update [LDOx|DCx]_HIB_MODE bits in wm8350_[ldo|dcdc]_set_suspend_disable What we want is to disable output by setting [LDOx|DCx]_HIB_MODE bits. Current code also clears other bits in LDOx/DCDCx Low Power register. R202 (CAh) LDO1 Low Power BIT[13:12] LDO1 Hibernate behaviour: 00 = Select voltage image settings 01 = disable output 10 = reserved 11 = reserved R182 (B6h) DCDC1 Low Power BIT[14:12] DC-DC1 Hibernate behaviour: 000 = Use current settings (no change) 001 = Select voltage image settings 010 = Force standby mode 011 = Force standby mode and voltage image settings. 100 = Force LDO mode 101 = Force LDO mode and voltage image settings. 110 = Reserved. 111 = Disable output Signed-off-by: Axel Lin Signed-off-by: Mark Brown diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c index c5f3b40..05ecfb8 100644 --- a/drivers/regulator/wm8350-regulator.c +++ b/drivers/regulator/wm8350-regulator.c @@ -535,25 +535,25 @@ static int wm8350_dcdc_set_suspend_disable(struct regulator_dev *rdev) val = wm8350_reg_read(wm8350, WM8350_DCDC1_LOW_POWER); wm8350->pmic.dcdc1_hib_mode = val & WM8350_DCDC_HIB_MODE_MASK; wm8350_reg_write(wm8350, WM8350_DCDC1_LOW_POWER, - WM8350_DCDC_HIB_MODE_DIS); + val | WM8350_DCDC_HIB_MODE_DIS); break; case WM8350_DCDC_3: val = wm8350_reg_read(wm8350, WM8350_DCDC3_LOW_POWER); wm8350->pmic.dcdc3_hib_mode = val & WM8350_DCDC_HIB_MODE_MASK; wm8350_reg_write(wm8350, WM8350_DCDC3_LOW_POWER, - WM8350_DCDC_HIB_MODE_DIS); + val | WM8350_DCDC_HIB_MODE_DIS); break; case WM8350_DCDC_4: val = wm8350_reg_read(wm8350, WM8350_DCDC4_LOW_POWER); wm8350->pmic.dcdc4_hib_mode = val & WM8350_DCDC_HIB_MODE_MASK; wm8350_reg_write(wm8350, WM8350_DCDC4_LOW_POWER, - WM8350_DCDC_HIB_MODE_DIS); + val | WM8350_DCDC_HIB_MODE_DIS); break; case WM8350_DCDC_6: val = wm8350_reg_read(wm8350, WM8350_DCDC6_LOW_POWER); wm8350->pmic.dcdc6_hib_mode = val & WM8350_DCDC_HIB_MODE_MASK; wm8350_reg_write(wm8350, WM8350_DCDC6_LOW_POWER, - WM8350_DCDC_HIB_MODE_DIS); + val | WM8350_DCDC_HIB_MODE_DIS); break; case WM8350_DCDC_2: case WM8350_DCDC_5: @@ -749,7 +749,7 @@ static int wm8350_ldo_set_suspend_disable(struct regulator_dev *rdev) /* all LDOs have same mV bits */ val = wm8350_reg_read(wm8350, volt_reg) & ~WM8350_LDO1_HIB_MODE_MASK; - wm8350_reg_write(wm8350, volt_reg, WM8350_LDO1_HIB_MODE_DIS); + wm8350_reg_write(wm8350, volt_reg, val | WM8350_LDO1_HIB_MODE_DIS); return 0; } -- cgit v0.10.2 From 15c08f664d8ca4f4d0e202cbd4034422a706ef80 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 29 Mar 2012 12:21:17 +0800 Subject: regulator: Fix comments in include/linux/regulator/machine.h Signed-off-by: Axel Lin Signed-off-by: Mark Brown diff --git a/include/linux/regulator/machine.h b/include/linux/regulator/machine.h index 7abb160..b021084 100644 --- a/include/linux/regulator/machine.h +++ b/include/linux/regulator/machine.h @@ -71,7 +71,7 @@ struct regulator_state { * @uV_offset: Offset applied to voltages from consumer to compensate for * voltage drops. * - * @min_uA: Smallest consumers consumers may set. + * @min_uA: Smallest current consumers may set. * @max_uA: Largest current consumers may set. * * @valid_modes_mask: Mask of modes which may be configured by consumers. @@ -134,10 +134,8 @@ struct regulation_constraints { /** * struct regulator_consumer_supply - supply -> device mapping * - * This maps a supply name to a device. Only one of dev or dev_name - * can be specified. Use of dev_name allows support for buses which - * make struct device available late such as I2C and is the preferred - * form. + * This maps a supply name to a device. Use of dev_name allows support for + * buses which make struct device available late such as I2C. * * @dev_name: Result of dev_name() for the consumer. * @supply: Name for the supply. -- cgit v0.10.2 From 107f8bdac992356b3a80d41c9f6ff4399159aa81 Mon Sep 17 00:00:00 2001 From: Steffen Klassert Date: Wed, 28 Mar 2012 08:42:34 +0200 Subject: padata: Add a reference to the api documentation Add a reference to the padata api documentation at Documentation/padata.txt Suggested-by: Peter Zijlstra Signed-off-by: Steffen Klassert Signed-off-by: Herbert Xu diff --git a/kernel/padata.c b/kernel/padata.c index 6f10eb2..7875088 100644 --- a/kernel/padata.c +++ b/kernel/padata.c @@ -1,6 +1,8 @@ /* * padata.c - generic interface to process data streams in parallel * + * See Documentation/padata.txt for an api documentation. + * * Copyright (C) 2008, 2009 secunet Security Networks AG * Copyright (C) 2008, 2009 Steffen Klassert * -- cgit v0.10.2 From 13614e0fb1a8840c134be35c179ff23e23676304 Mon Sep 17 00:00:00 2001 From: Steffen Klassert Date: Wed, 28 Mar 2012 08:43:21 +0200 Subject: padata: Use the online cpumask as the default We use the active cpumask to determine the superset of cpus to use for parallelization. However, the active cpumask is for internal usage of the scheduler and therefore not the appropriate cpumask for these purposes. So use the online cpumask instead. Reported-by: Peter Zijlstra Signed-off-by: Steffen Klassert Signed-off-by: Herbert Xu diff --git a/kernel/padata.c b/kernel/padata.c index 7875088..de3d0d9 100644 --- a/kernel/padata.c +++ b/kernel/padata.c @@ -356,13 +356,13 @@ static int padata_setup_cpumasks(struct parallel_data *pd, if (!alloc_cpumask_var(&pd->cpumask.pcpu, GFP_KERNEL)) return -ENOMEM; - cpumask_and(pd->cpumask.pcpu, pcpumask, cpu_active_mask); + cpumask_and(pd->cpumask.pcpu, pcpumask, cpu_online_mask); if (!alloc_cpumask_var(&pd->cpumask.cbcpu, GFP_KERNEL)) { free_cpumask_var(pd->cpumask.cbcpu); return -ENOMEM; } - cpumask_and(pd->cpumask.cbcpu, cbcpumask, cpu_active_mask); + cpumask_and(pd->cpumask.cbcpu, cbcpumask, cpu_online_mask); return 0; } @@ -566,7 +566,7 @@ EXPORT_SYMBOL(padata_unregister_cpumask_notifier); static bool padata_validate_cpumask(struct padata_instance *pinst, const struct cpumask *cpumask) { - if (!cpumask_intersects(cpumask, cpu_active_mask)) { + if (!cpumask_intersects(cpumask, cpu_online_mask)) { pinst->flags |= PADATA_INVALID; return false; } @@ -680,7 +680,7 @@ static int __padata_add_cpu(struct padata_instance *pinst, int cpu) { struct parallel_data *pd; - if (cpumask_test_cpu(cpu, cpu_active_mask)) { + if (cpumask_test_cpu(cpu, cpu_online_mask)) { pd = padata_alloc_pd(pinst, pinst->cpumask.pcpu, pinst->cpumask.cbcpu); if (!pd) -- cgit v0.10.2 From 9612090527526a15832480c48b1f4b39e93e8a35 Mon Sep 17 00:00:00 2001 From: Steffen Klassert Date: Wed, 28 Mar 2012 08:44:07 +0200 Subject: padata: Fix cpu hotplug We don't remove the cpu that went offline from our cpumasks on cpu hotplug. This got lost somewhere along the line, so restore it. This fixes a hang of the padata instance on cpu hotplug. Signed-off-by: Steffen Klassert Signed-off-by: Herbert Xu diff --git a/kernel/padata.c b/kernel/padata.c index de3d0d9..89fe3d1 100644 --- a/kernel/padata.c +++ b/kernel/padata.c @@ -748,6 +748,9 @@ static int __padata_remove_cpu(struct padata_instance *pinst, int cpu) return -ENOMEM; padata_replace(pinst, pd); + + cpumask_clear_cpu(cpu, pd->cpumask.cbcpu); + cpumask_clear_cpu(cpu, pd->cpumask.pcpu); } return 0; -- cgit v0.10.2 From fbf0ca1bf852fe224cec5400a69cd755ddc4ddcb Mon Sep 17 00:00:00 2001 From: Steffen Klassert Date: Wed, 28 Mar 2012 08:51:03 +0200 Subject: crypto: pcrypt - Use the online cpumask as the default We use the active cpumask to determine the superset of cpus to use for parallelization. However, the active cpumask is for internal usage of the scheduler and therefore not the appropriate cpumask for these purposes. So use the online cpumask instead. Reported-by: Peter Zijlstra Signed-off-by: Steffen Klassert Signed-off-by: Herbert Xu diff --git a/crypto/pcrypt.c b/crypto/pcrypt.c index 29a89da..b2c99dc 100644 --- a/crypto/pcrypt.c +++ b/crypto/pcrypt.c @@ -280,11 +280,11 @@ static int pcrypt_aead_init_tfm(struct crypto_tfm *tfm) ictx->tfm_count++; - cpu_index = ictx->tfm_count % cpumask_weight(cpu_active_mask); + cpu_index = ictx->tfm_count % cpumask_weight(cpu_online_mask); - ctx->cb_cpu = cpumask_first(cpu_active_mask); + ctx->cb_cpu = cpumask_first(cpu_online_mask); for (cpu = 0; cpu < cpu_index; cpu++) - ctx->cb_cpu = cpumask_next(ctx->cb_cpu, cpu_active_mask); + ctx->cb_cpu = cpumask_next(ctx->cb_cpu, cpu_online_mask); cipher = crypto_spawn_aead(crypto_instance_ctx(inst)); @@ -472,7 +472,7 @@ static int pcrypt_init_padata(struct padata_pcrypt *pcrypt, goto err_free_padata; } - cpumask_and(mask->mask, cpu_possible_mask, cpu_active_mask); + cpumask_and(mask->mask, cpu_possible_mask, cpu_online_mask); rcu_assign_pointer(pcrypt->cb_cpumask, mask); pcrypt->nblock.notifier_call = pcrypt_cpumask_change_notify; -- cgit v0.10.2 From 1e1229940045a537c61fb69f86010a8774e576d0 Mon Sep 17 00:00:00 2001 From: Steffen Klassert Date: Thu, 29 Mar 2012 09:03:47 +0200 Subject: crypto: user - Fix lookup of algorithms with IV generator We lookup algorithms with crypto_alg_mod_lookup() when instantiating via crypto_add_alg(). However, algorithms that are wrapped by an IV genearator (e.g. aead or genicv type algorithms) need special care. The userspace process hangs until it gets a timeout when we use crypto_alg_mod_lookup() to lookup these algorithms. So export the lookup functions for these algorithms and use them in crypto_add_alg(). Signed-off-by: Steffen Klassert Signed-off-by: Herbert Xu diff --git a/crypto/ablkcipher.c b/crypto/ablkcipher.c index a0f768c..8d3a056 100644 --- a/crypto/ablkcipher.c +++ b/crypto/ablkcipher.c @@ -613,8 +613,7 @@ out: return err; } -static struct crypto_alg *crypto_lookup_skcipher(const char *name, u32 type, - u32 mask) +struct crypto_alg *crypto_lookup_skcipher(const char *name, u32 type, u32 mask) { struct crypto_alg *alg; @@ -652,6 +651,7 @@ static struct crypto_alg *crypto_lookup_skcipher(const char *name, u32 type, return ERR_PTR(crypto_givcipher_default(alg, type, mask)); } +EXPORT_SYMBOL_GPL(crypto_lookup_skcipher); int crypto_grab_skcipher(struct crypto_skcipher_spawn *spawn, const char *name, u32 type, u32 mask) diff --git a/crypto/aead.c b/crypto/aead.c index 04add3dc..e4cb351 100644 --- a/crypto/aead.c +++ b/crypto/aead.c @@ -470,8 +470,7 @@ out: return err; } -static struct crypto_alg *crypto_lookup_aead(const char *name, u32 type, - u32 mask) +struct crypto_alg *crypto_lookup_aead(const char *name, u32 type, u32 mask) { struct crypto_alg *alg; @@ -503,6 +502,7 @@ static struct crypto_alg *crypto_lookup_aead(const char *name, u32 type, return ERR_PTR(crypto_nivaead_default(alg, type, mask)); } +EXPORT_SYMBOL_GPL(crypto_lookup_aead); int crypto_grab_aead(struct crypto_aead_spawn *spawn, const char *name, u32 type, u32 mask) diff --git a/crypto/crypto_user.c b/crypto/crypto_user.c index f76e42b..e91c161 100644 --- a/crypto/crypto_user.c +++ b/crypto/crypto_user.c @@ -21,9 +21,13 @@ #include #include #include +#include #include #include #include +#include +#include + #include "internal.h" DEFINE_MUTEX(crypto_cfg_mutex); @@ -301,6 +305,60 @@ static int crypto_del_alg(struct sk_buff *skb, struct nlmsghdr *nlh, return crypto_unregister_instance(alg); } +static struct crypto_alg *crypto_user_skcipher_alg(const char *name, u32 type, + u32 mask) +{ + int err; + struct crypto_alg *alg; + + type = crypto_skcipher_type(type); + mask = crypto_skcipher_mask(mask); + + for (;;) { + alg = crypto_lookup_skcipher(name, type, mask); + if (!IS_ERR(alg)) + return alg; + + err = PTR_ERR(alg); + if (err != -EAGAIN) + break; + if (signal_pending(current)) { + err = -EINTR; + break; + } + } + + return ERR_PTR(err); +} + +static struct crypto_alg *crypto_user_aead_alg(const char *name, u32 type, + u32 mask) +{ + int err; + struct crypto_alg *alg; + + type &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV); + type |= CRYPTO_ALG_TYPE_AEAD; + mask &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV); + mask |= CRYPTO_ALG_TYPE_MASK; + + for (;;) { + alg = crypto_lookup_aead(name, type, mask); + if (!IS_ERR(alg)) + return alg; + + err = PTR_ERR(alg); + if (err != -EAGAIN) + break; + if (signal_pending(current)) { + err = -EINTR; + break; + } + } + + return ERR_PTR(err); +} + static int crypto_add_alg(struct sk_buff *skb, struct nlmsghdr *nlh, struct nlattr **attrs) { @@ -325,7 +383,19 @@ static int crypto_add_alg(struct sk_buff *skb, struct nlmsghdr *nlh, else name = p->cru_name; - alg = crypto_alg_mod_lookup(name, p->cru_type, p->cru_mask); + switch (p->cru_type & p->cru_mask & CRYPTO_ALG_TYPE_MASK) { + case CRYPTO_ALG_TYPE_AEAD: + alg = crypto_user_aead_alg(name, p->cru_type, p->cru_mask); + break; + case CRYPTO_ALG_TYPE_GIVCIPHER: + case CRYPTO_ALG_TYPE_BLKCIPHER: + case CRYPTO_ALG_TYPE_ABLKCIPHER: + alg = crypto_user_skcipher_alg(name, p->cru_type, p->cru_mask); + break; + default: + alg = crypto_alg_mod_lookup(name, p->cru_type, p->cru_mask); + } + if (IS_ERR(alg)) return PTR_ERR(alg); diff --git a/include/crypto/internal/aead.h b/include/crypto/internal/aead.h index d838c94..2eba340 100644 --- a/include/crypto/internal/aead.h +++ b/include/crypto/internal/aead.h @@ -31,6 +31,8 @@ static inline void crypto_set_aead_spawn( crypto_set_spawn(&spawn->base, inst); } +struct crypto_alg *crypto_lookup_aead(const char *name, u32 type, u32 mask); + int crypto_grab_aead(struct crypto_aead_spawn *spawn, const char *name, u32 type, u32 mask); diff --git a/include/crypto/internal/skcipher.h b/include/crypto/internal/skcipher.h index 3a748a6..06e8b32 100644 --- a/include/crypto/internal/skcipher.h +++ b/include/crypto/internal/skcipher.h @@ -34,6 +34,8 @@ static inline void crypto_set_skcipher_spawn( int crypto_grab_skcipher(struct crypto_skcipher_spawn *spawn, const char *name, u32 type, u32 mask); +struct crypto_alg *crypto_lookup_skcipher(const char *name, u32 type, u32 mask); + static inline void crypto_drop_skcipher(struct crypto_skcipher_spawn *spawn) { crypto_drop_spawn(&spawn->base); -- cgit v0.10.2 From 5219a5342ab13650ae0f0c62319407268c48d0ab Mon Sep 17 00:00:00 2001 From: Steffen Klassert Date: Thu, 29 Mar 2012 09:04:46 +0200 Subject: crypto: user - Fix size of netlink dump message The default netlink message size limit might be exceeded when dumping a lot of algorithms to userspace. As a result, not all of the instantiated algorithms dumped to userspace. So calculate an upper bound on the message size and call netlink_dump_start() with that value. Signed-off-by: Steffen Klassert Signed-off-by: Herbert Xu diff --git a/crypto/crypto_user.c b/crypto/crypto_user.c index e91c161..f1ea0a0 100644 --- a/crypto/crypto_user.c +++ b/crypto/crypto_user.c @@ -457,12 +457,20 @@ static int crypto_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh) if ((type == (CRYPTO_MSG_GETALG - CRYPTO_MSG_BASE) && (nlh->nlmsg_flags & NLM_F_DUMP))) { + struct crypto_alg *alg; + u16 dump_alloc = 0; + if (link->dump == NULL) return -EINVAL; + + list_for_each_entry(alg, &crypto_alg_list, cra_list) + dump_alloc += CRYPTO_REPORT_MAXSIZE; + { struct netlink_dump_control c = { .dump = link->dump, .done = link->done, + .min_dump_alloc = dump_alloc, }; return netlink_dump_start(crypto_nlsk, skb, nlh, &c); } diff --git a/include/linux/cryptouser.h b/include/linux/cryptouser.h index 532fb58..4abf2ea 100644 --- a/include/linux/cryptouser.h +++ b/include/linux/cryptouser.h @@ -100,3 +100,6 @@ struct crypto_report_rng { char type[CRYPTO_MAX_NAME]; unsigned int seedsize; }; + +#define CRYPTO_REPORT_MAXSIZE (sizeof(struct crypto_user_alg) + \ + sizeof(struct crypto_report_blkcipher)) -- cgit v0.10.2 From 9cb6abcb2645985a886f36459d480f5163c57623 Mon Sep 17 00:00:00 2001 From: Timur Tabi Date: Mon, 19 Mar 2012 11:06:39 -0500 Subject: powerpc/8xxx: remove 85xx/86xx restrictions from fsl_guts.h Remove the check for CONFIG_PPC_85xx and CONFIG_PPC_86xx from fsl_guts.h. The check was originally intended to allow the same header file to be used on 85xx and 86xx systems, even though the Global Utilities register could be different. It turns out that they're not actually different, and so the check is not necessary. In addition, neither macro is defined for 64-bit e5500 kernels, so that causes a build break. Signed-off-by: Timur Tabi Acked-by: Mark Brown Signed-off-by: Kumar Gala diff --git a/arch/powerpc/include/asm/fsl_guts.h b/arch/powerpc/include/asm/fsl_guts.h index ce04530..aa4c488 100644 --- a/arch/powerpc/include/asm/fsl_guts.h +++ b/arch/powerpc/include/asm/fsl_guts.h @@ -16,15 +16,6 @@ #define __ASM_POWERPC_FSL_GUTS_H__ #ifdef __KERNEL__ -/* - * These #ifdefs are safe because it's not possible to build a kernel that - * runs on e500 and e600 cores. - */ - -#if !defined(CONFIG_PPC_85xx) && !defined(CONFIG_PPC_86xx) -#error Only 85xx and 86xx SOCs are supported -#endif - /** * Global Utility Registers. * @@ -36,11 +27,7 @@ * different names. In these cases, one name is chosen to avoid extraneous * #ifdefs. */ -#ifdef CONFIG_PPC_85xx -struct ccsr_guts_85xx { -#else -struct ccsr_guts_86xx { -#endif +struct ccsr_guts { __be32 porpllsr; /* 0x.0000 - POR PLL Ratio Status Register */ __be32 porbmsr; /* 0x.0004 - POR Boot Mode Status Register */ __be32 porimpscr; /* 0x.0008 - POR I/O Impedance Status and Control Register */ @@ -77,11 +64,8 @@ struct ccsr_guts_86xx { u8 res0a8[0xb0 - 0xa8]; __be32 rstcr; /* 0x.00b0 - Reset Control Register */ u8 res0b4[0xc0 - 0xb4]; -#ifdef CONFIG_PPC_85xx - __be32 iovselsr; /* 0x.00c0 - I/O voltage select status register */ -#else - __be32 elbcvselcr; /* 0x.00c0 - eLBC Voltage Select Ctrl Reg */ -#endif + __be32 iovselsr; /* 0x.00c0 - I/O voltage select status register + Called 'elbcvselcr' on 86xx SOCs */ u8 res0c4[0x224 - 0xc4]; __be32 iodelay1; /* 0x.0224 - IO delay control register 1 */ __be32 iodelay2; /* 0x.0228 - IO delay control register 2 */ @@ -136,7 +120,7 @@ struct ccsr_guts_86xx { * ch: The channel on the DMA controller (0, 1, 2, or 3) * device: The device to set as the source (CCSR_GUTS_DMACR_DEV_xx) */ -static inline void guts_set_dmacr(struct ccsr_guts_86xx __iomem *guts, +static inline void guts_set_dmacr(struct ccsr_guts __iomem *guts, unsigned int co, unsigned int ch, unsigned int device) { unsigned int shift = 16 + (8 * (1 - co) + 2 * (3 - ch)); @@ -172,7 +156,7 @@ static inline void guts_set_dmacr(struct ccsr_guts_86xx __iomem *guts, * ch: The channel on the DMA controller (0, 1, 2, or 3) * value: the new value for the bit (0 or 1) */ -static inline void guts_set_pmuxcr_dma(struct ccsr_guts_86xx __iomem *guts, +static inline void guts_set_pmuxcr_dma(struct ccsr_guts __iomem *guts, unsigned int co, unsigned int ch, unsigned int value) { if ((ch == 0) || (ch == 3)) { diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c index f33662b..e82f06f 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c @@ -271,7 +271,7 @@ static void __init mpc85xx_mds_qe_init(void) if (machine_is(p1021_mds)) { - struct ccsr_guts_85xx __iomem *guts; + struct ccsr_guts __iomem *guts; np = of_find_node_by_name(NULL, "global-utilities"); if (np) { diff --git a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c index db214cd..1a66c3d 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c @@ -128,7 +128,7 @@ static void __init mpc85xx_rdb_setup_arch(void) #if defined(CONFIG_UCC_GETH) || defined(CONFIG_SERIAL_QE) if (machine_is(p1025_rdb)) { - struct ccsr_guts_85xx __iomem *guts; + struct ccsr_guts __iomem *guts; np = of_find_node_by_name(NULL, "global-utilities"); if (np) { diff --git a/arch/powerpc/platforms/85xx/p1022_ds.c b/arch/powerpc/platforms/85xx/p1022_ds.c index 0fe88e3..e74b7cd 100644 --- a/arch/powerpc/platforms/85xx/p1022_ds.c +++ b/arch/powerpc/platforms/85xx/p1022_ds.c @@ -150,7 +150,7 @@ static void p1022ds_set_monitor_port(enum fsl_diu_monitor_port port) { struct device_node *guts_node; struct device_node *indirect_node = NULL; - struct ccsr_guts_85xx __iomem *guts; + struct ccsr_guts __iomem *guts; u8 __iomem *lbc_lcs0_ba = NULL; u8 __iomem *lbc_lcs1_ba = NULL; u8 b; @@ -269,7 +269,7 @@ exit: void p1022ds_set_pixel_clock(unsigned int pixclock) { struct device_node *guts_np = NULL; - struct ccsr_guts_85xx __iomem *guts; + struct ccsr_guts __iomem *guts; unsigned long freq; u64 temp; u32 pxclk; diff --git a/arch/powerpc/platforms/86xx/mpc8610_hpcd.c b/arch/powerpc/platforms/86xx/mpc8610_hpcd.c index 13fa9a6..b8b1f33 100644 --- a/arch/powerpc/platforms/86xx/mpc8610_hpcd.c +++ b/arch/powerpc/platforms/86xx/mpc8610_hpcd.c @@ -226,7 +226,7 @@ void mpc8610hpcd_set_monitor_port(enum fsl_diu_monitor_port port) void mpc8610hpcd_set_pixel_clock(unsigned int pixclock) { struct device_node *guts_np = NULL; - struct ccsr_guts_86xx __iomem *guts; + struct ccsr_guts __iomem *guts; unsigned long freq; u64 temp; u32 pxclk; diff --git a/sound/soc/fsl/mpc8610_hpcd.c b/sound/soc/fsl/mpc8610_hpcd.c index afbabf4..3fea5a1 100644 --- a/sound/soc/fsl/mpc8610_hpcd.c +++ b/sound/soc/fsl/mpc8610_hpcd.c @@ -58,9 +58,9 @@ static int mpc8610_hpcd_machine_probe(struct snd_soc_card *card) { struct mpc8610_hpcd_data *machine_data = container_of(card, struct mpc8610_hpcd_data, card); - struct ccsr_guts_86xx __iomem *guts; + struct ccsr_guts __iomem *guts; - guts = ioremap(guts_phys, sizeof(struct ccsr_guts_86xx)); + guts = ioremap(guts_phys, sizeof(struct ccsr_guts)); if (!guts) { dev_err(card->dev, "could not map global utilities\n"); return -ENOMEM; @@ -142,9 +142,9 @@ static int mpc8610_hpcd_machine_remove(struct snd_soc_card *card) { struct mpc8610_hpcd_data *machine_data = container_of(card, struct mpc8610_hpcd_data, card); - struct ccsr_guts_86xx __iomem *guts; + struct ccsr_guts __iomem *guts; - guts = ioremap(guts_phys, sizeof(struct ccsr_guts_86xx)); + guts = ioremap(guts_phys, sizeof(struct ccsr_guts)); if (!guts) { dev_err(card->dev, "could not map global utilities\n"); return -ENOMEM; diff --git a/sound/soc/fsl/p1022_ds.c b/sound/soc/fsl/p1022_ds.c index 4662340..982a1c9 100644 --- a/sound/soc/fsl/p1022_ds.c +++ b/sound/soc/fsl/p1022_ds.c @@ -46,7 +46,7 @@ * ch: The channel on the DMA controller (0, 1, 2, or 3) * device: The device to set as the target (CCSR_GUTS_DMUXCR_xxx) */ -static inline void guts_set_dmuxcr(struct ccsr_guts_85xx __iomem *guts, +static inline void guts_set_dmuxcr(struct ccsr_guts __iomem *guts, unsigned int co, unsigned int ch, unsigned int device) { unsigned int shift = 16 + (8 * (1 - co) + 2 * (3 - ch)); @@ -90,9 +90,9 @@ static int p1022_ds_machine_probe(struct snd_soc_card *card) { struct machine_data *mdata = container_of(card, struct machine_data, card); - struct ccsr_guts_85xx __iomem *guts; + struct ccsr_guts __iomem *guts; - guts = ioremap(guts_phys, sizeof(struct ccsr_guts_85xx)); + guts = ioremap(guts_phys, sizeof(struct ccsr_guts)); if (!guts) { dev_err(card->dev, "could not map global utilities\n"); return -ENOMEM; @@ -164,9 +164,9 @@ static int p1022_ds_machine_remove(struct snd_soc_card *card) { struct machine_data *mdata = container_of(card, struct machine_data, card); - struct ccsr_guts_85xx __iomem *guts; + struct ccsr_guts __iomem *guts; - guts = ioremap(guts_phys, sizeof(struct ccsr_guts_85xx)); + guts = ioremap(guts_phys, sizeof(struct ccsr_guts)); if (!guts) { dev_err(card->dev, "could not map global utilities\n"); return -ENOMEM; -- cgit v0.10.2 From 72ea4d48863679911330f977144b2b2bd62dd92a Mon Sep 17 00:00:00 2001 From: Jerry Huang Date: Tue, 20 Mar 2012 14:24:44 +0800 Subject: powerpc/85xx: add the P1020MBG-PC DTS support Signed-off-by: Jerry Huang Signed-off-by: Kumar Gala diff --git a/arch/powerpc/boot/dts/p1020mbg-pc.dtsi b/arch/powerpc/boot/dts/p1020mbg-pc.dtsi new file mode 100644 index 0000000..a24699c --- /dev/null +++ b/arch/powerpc/boot/dts/p1020mbg-pc.dtsi @@ -0,0 +1,151 @@ +/* + * P1020 MBG-PC Device Tree Source stub (no addresses or top-level ranges) + * + * Copyright 2012 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +&lbc { + nor@0,0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "cfi-flash"; + reg = <0x0 0x0 0x4000000>; + bank-width = <2>; + device-width = <1>; + + partition@0 { + /* 128KB for DTB Image */ + reg = <0x0 0x00020000>; + label = "NOR DTB Image"; + }; + + partition@20000 { + /* 3.875 MB for Linux Kernel Image */ + reg = <0x00020000 0x003e0000>; + label = "NOR Linux Kernel Image"; + }; + + partition@400000 { + /* 58MB for Root file System */ + reg = <0x00400000 0x03a00000>; + label = "NOR Root File System"; + }; + + partition@3e00000 { + /* This location must not be altered */ + /* 1M for Vitesse 7385 Switch firmware */ + reg = <0x3e00000 0x00100000>; + label = "NOR Vitesse-7385 Firmware"; + read-only; + }; + + partition@3f00000 { + /* This location must not be altered */ + /* 512KB for u-boot Bootloader Image */ + /* 512KB for u-boot Environment Variables */ + reg = <0x03f00000 0x00100000>; + label = "NOR U-Boot Image"; + read-only; + }; + }; + + L2switch@2,0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "vitesse-7385"; + reg = <0x2 0x0 0x20000>; + }; +}; + +&soc { + i2c@3000 { + rtc@68 { + compatible = "dallas,ds1339"; + reg = <0x68>; + }; + }; + + mdio@24000 { + phy0: ethernet-phy@0 { + interrupts = <3 1 0 0>; + reg = <0x0>; + }; + phy1: ethernet-phy@1 { + interrupts = <2 1 0 0>; + reg = <0x1>; + }; + }; + + mdio@25000 { + tbi1: tbi-phy@11 { + reg = <0x11>; + device_type = "tbi-phy"; + }; + }; + + mdio@26000 { + tbi2: tbi-phy@11 { + reg = <0x11>; + device_type = "tbi-phy"; + }; + }; + + enet0: ethernet@b0000 { + fixed-link = <1 1 1000 0 0>; + phy-connection-type = "rgmii-id"; + }; + + enet1: ethernet@b1000 { + phy-handle = <&phy0>; + tbi-handle = <&tbi1>; + phy-connection-type = "sgmii"; + }; + + enet2: ethernet@b2000 { + phy-handle = <&phy1>; + phy-connection-type = "rgmii-id"; + }; + + usb@22000 { + phy_type = "ulpi"; + }; + + /* USB2 is shared with localbus, so it must be disabled + by default. We can't put 'status = "disabled";' here + since U-Boot doesn't clear the status property when + it enables USB2. OTOH, U-Boot does create a new node + when there isn't any. So, just comment it out. + */ + usb@23000 { + status = "disabled"; + phy_type = "ulpi"; + }; +}; diff --git a/arch/powerpc/boot/dts/p1020mbg-pc_32b.dts b/arch/powerpc/boot/dts/p1020mbg-pc_32b.dts new file mode 100644 index 0000000..ab8f076 --- /dev/null +++ b/arch/powerpc/boot/dts/p1020mbg-pc_32b.dts @@ -0,0 +1,89 @@ +/* + * P1020 MBG-PC Device Tree Source (32-bit address map) + * + * Copyright 2012 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/include/ "fsl/p1020si-pre.dtsi" +/ { + model = "fsl,P1020MBG-PC"; + compatible = "fsl,P1020MBG-PC"; + + memory { + device_type = "memory"; + }; + + lbc: localbus@ffe05000 { + reg = <0x0 0xffe05000 0x0 0x1000>; + + /* NOR and L2 switch */ + ranges = <0x0 0x0 0x0 0xec000000 0x04000000 + 0x1 0x0 0x0 0xffa00000 0x00040000 + 0x2 0x0 0x0 0xffb00000 0x00020000>; + }; + + soc: soc@ffe00000 { + ranges = <0x0 0x0 0xffe00000 0x100000>; + }; + + pci0: pcie@ffe09000 { + reg = <0x0 0xffe09000 0x0 0x1000>; + ranges = <0x2000000 0x0 0xe0000000 0x0 0xa0000000 0x0 0x20000000 + 0x1000000 0x0 0x00000000 0x0 0xffc10000 0x0 0x10000>; + pcie@0 { + ranges = <0x2000000 0x0 0xe0000000 + 0x2000000 0x0 0xe0000000 + 0x0 0x20000000 + + 0x1000000 0x0 0x0 + 0x1000000 0x0 0x0 + 0x0 0x100000>; + }; + }; + + pci1: pcie@ffe0a000 { + reg = <0x0 0xffe0a000 0x0 0x1000>; + ranges = <0x2000000 0x0 0xe0000000 0x0 0x80000000 0x0 0x20000000 + 0x1000000 0x0 0x00000000 0x0 0xffc00000 0x0 0x10000>; + pcie@0 { + ranges = <0x2000000 0x0 0xe0000000 + 0x2000000 0x0 0xe0000000 + 0x0 0x20000000 + + 0x1000000 0x0 0x0 + 0x1000000 0x0 0x0 + 0x0 0x100000>; + }; + }; +}; + +/include/ "p1020mbg-pc.dtsi" +/include/ "fsl/p1020si-post.dtsi" diff --git a/arch/powerpc/boot/dts/p1020mbg-pc_36b.dts b/arch/powerpc/boot/dts/p1020mbg-pc_36b.dts new file mode 100644 index 0000000..9e9f401 --- /dev/null +++ b/arch/powerpc/boot/dts/p1020mbg-pc_36b.dts @@ -0,0 +1,89 @@ +/* + * P1020 MBG-PC Device Tree Source (36-bit address map) + * + * Copyright 2012 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/include/ "fsl/p1020si-pre.dtsi" +/ { + model = "fsl,P1020MBG-PC"; + compatible = "fsl,P1020MBG-PC"; + + memory { + device_type = "memory"; + }; + + lbc: localbus@fffe05000 { + reg = <0xf 0xffe05000 0x0 0x1000>; + + /* NOR and L2 switch */ + ranges = <0x0 0x0 0xf 0xec000000 0x04000000 + 0x1 0x0 0xf 0xffa00000 0x00040000 + 0x2 0x0 0xf 0xffb00000 0x00020000>; + }; + + soc: soc@fffe00000 { + ranges = <0x0 0xf 0xffe00000 0x100000>; + }; + + pci0: pcie@fffe09000 { + reg = <0xf 0xffe09000 0x0 0x1000>; + ranges = <0x2000000 0x0 0xe0000000 0xc 0x20000000 0x0 0x20000000 + 0x1000000 0x0 0x00000000 0xf 0xffc10000 0x0 0x10000>; + pcie@0 { + ranges = <0x2000000 0x0 0xe0000000 + 0x2000000 0x0 0xe0000000 + 0x0 0x20000000 + + 0x1000000 0x0 0x0 + 0x1000000 0x0 0x0 + 0x0 0x100000>; + }; + }; + + pci1: pcie@fffe0a000 { + reg = <0xf 0xffe0a000 0 0x1000>; + ranges = <0x2000000 0x0 0xe0000000 0xc 0x00000000 0x0 0x20000000 + 0x1000000 0x0 0x00000000 0xf 0xffc00000 0x0 0x10000>; + pcie@0 { + ranges = <0x2000000 0x0 0xe0000000 + 0x2000000 0x0 0xe0000000 + 0x0 0x20000000 + + 0x1000000 0x0 0x0 + 0x1000000 0x0 0x0 + 0x0 0x100000>; + }; + }; +}; + +/include/ "p1020mbg-pc.dtsi" +/include/ "fsl/p1020si-post.dtsi" -- cgit v0.10.2 From 2fc1fc0338d568723b32e2d7a79b644f6137fd00 Mon Sep 17 00:00:00 2001 From: Jerry Huang Date: Tue, 20 Mar 2012 14:24:45 +0800 Subject: powerpc/85xx: add the P1020UTM-PC DTS support Signed-off-by: Jerry Huang Signed-off-by: Kumar Gala diff --git a/arch/powerpc/boot/dts/p1020utm-pc.dtsi b/arch/powerpc/boot/dts/p1020utm-pc.dtsi new file mode 100644 index 0000000..7ea85ea --- /dev/null +++ b/arch/powerpc/boot/dts/p1020utm-pc.dtsi @@ -0,0 +1,140 @@ +/* + * P1020 UTM-PC Device Tree Source stub (no addresses or top-level ranges) + * + * Copyright 2012 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +&lbc { + nor@0,0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "cfi-flash"; + reg = <0x0 0x0 0x2000000>; + bank-width = <2>; + device-width = <1>; + + partition@0 { + /* 256KB for DTB Image */ + reg = <0x0 0x00040000>; + label = "NOR DTB Image"; + }; + + partition@40000 { + /* 3.75 MB for Linux Kernel Image */ + reg = <0x00040000 0x003c0000>; + label = "NOR Linux Kernel Image"; + }; + + partition@400000 { + /* 27MB for Root file System */ + reg = <0x00400000 0x01b00000>; + label = "NOR Root File System"; + }; + + partition@1f00000 { + /* This location must not be altered */ + /* 512KB for u-boot Bootloader Image */ + /* 512KB for u-boot Environment Variables */ + reg = <0x01f00000 0x00100000>; + label = "NOR U-Boot Image"; + read-only; + }; + }; +}; + +&soc { + i2c@3000 { + rtc@68 { + compatible = "dallas,ds1339"; + reg = <0x68>; + }; + }; + + mdio@24000 { + phy0: ethernet-phy@0 { + interrupts = <3 1 0 0>; + reg = <0x0>; + }; + phy1: ethernet-phy@1 { + interrupts = <2 1 0 0>; + reg = <0x1>; + }; + phy2: ethernet-phy@2 { + interrupts = <1 1 0 0>; + reg = <0x2>; + }; + }; + + mdio@25000 { + tbi1: tbi-phy@11 { + reg = <0x11>; + device_type = "tbi-phy"; + }; + }; + + mdio@26000 { + tbi2: tbi-phy@11 { + reg = <0x11>; + device_type = "tbi-phy"; + }; + }; + + enet0: ethernet@b0000 { + phy-handle = <&phy2>; + phy-connection-type = "rgmii-id"; + }; + + enet1: ethernet@b1000 { + phy-handle = <&phy0>; + tbi-handle = <&tbi1>; + phy-connection-type = "sgmii"; + }; + + enet2: ethernet@b2000 { + phy-handle = <&phy1>; + phy-connection-type = "rgmii-id"; + }; + + usb@22000 { + phy_type = "ulpi"; + }; + + /* USB2 is shared with localbus, so it must be disabled + by default. We can't put 'status = "disabled";' here + since U-Boot doesn't clear the status property when + it enables USB2. OTOH, U-Boot does create a new node + when there isn't any. So, just comment it out. + */ + usb@23000 { + status = "disabled"; + phy_type = "ulpi"; + }; +}; diff --git a/arch/powerpc/boot/dts/p1020utm-pc_32b.dts b/arch/powerpc/boot/dts/p1020utm-pc_32b.dts new file mode 100644 index 0000000..4bfdd89 --- /dev/null +++ b/arch/powerpc/boot/dts/p1020utm-pc_32b.dts @@ -0,0 +1,89 @@ +/* + * P1020 UTM-PC Device Tree Source (32-bit address map) + * + * Copyright 2012 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/include/ "fsl/p1020si-pre.dtsi" +/ { + model = "fsl,P1020UTM-PC"; + compatible = "fsl,P1020UTM-PC"; + + memory { + device_type = "memory"; + }; + + lbc: localbus@ffe05000 { + reg = <0x0 0xffe05000 0x0 0x1000>; + + /* NOR */ + ranges = <0x0 0x0 0x0 0xec000000 0x02000000 + 0x1 0x0 0x0 0xffa00000 0x00040000 + 0x2 0x0 0x0 0xffb00000 0x00020000>; + }; + + soc: soc@ffe00000 { + ranges = <0x0 0x0 0xffe00000 0x100000>; + }; + + pci0: pcie@ffe09000 { + reg = <0x0 0xffe09000 0x0 0x1000>; + ranges = <0x2000000 0x0 0xe0000000 0x0 0xa0000000 0x0 0x20000000 + 0x1000000 0x0 0x00000000 0x0 0xffc10000 0x0 0x10000>; + pcie@0 { + ranges = <0x2000000 0x0 0xe0000000 + 0x2000000 0x0 0xe0000000 + 0x0 0x20000000 + + 0x1000000 0x0 0x0 + 0x1000000 0x0 0x0 + 0x0 0x100000>; + }; + }; + + pci1: pcie@ffe0a000 { + reg = <0x0 0xffe0a000 0x0 0x1000>; + ranges = <0x2000000 0x0 0xe0000000 0x0 0x80000000 0x0 0x20000000 + 0x1000000 0x0 0x00000000 0x0 0xffc00000 0x0 0x10000>; + pcie@0 { + ranges = <0x2000000 0x0 0xe0000000 + 0x2000000 0x0 0xe0000000 + 0x0 0x20000000 + + 0x1000000 0x0 0x0 + 0x1000000 0x0 0x0 + 0x0 0x100000>; + }; + }; +}; + +/include/ "p1020utm-pc.dtsi" +/include/ "fsl/p1020si-post.dtsi" diff --git a/arch/powerpc/boot/dts/p1020utm-pc_36b.dts b/arch/powerpc/boot/dts/p1020utm-pc_36b.dts new file mode 100644 index 0000000..abec535 --- /dev/null +++ b/arch/powerpc/boot/dts/p1020utm-pc_36b.dts @@ -0,0 +1,89 @@ +/* + * P1020 UTM-PC Device Tree Source (36-bit address map) + * + * Copyright 2012 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/include/ "fsl/p1020si-pre.dtsi" +/ { + model = "fsl,P1020UTM-PC"; + compatible = "fsl,P1020UTM-PC"; + + memory { + device_type = "memory"; + }; + + lbc: localbus@fffe05000 { + reg = <0xf 0xffe05000 0x0 0x1000>; + + /* NOR */ + ranges = <0x0 0x0 0xf 0xec000000 0x02000000 + 0x1 0x0 0xf 0xffa00000 0x00040000 + 0x2 0x0 0xf 0xffb00000 0x00020000>; + }; + + soc: soc@fffe00000 { + ranges = <0x0 0xf 0xffe00000 0x100000>; + }; + + pci0: pcie@fffe09000 { + reg = <0xf 0xffe09000 0x0 0x1000>; + ranges = <0x2000000 0x0 0xe0000000 0xc 0x20000000 0x0 0x20000000 + 0x1000000 0x0 0x00000000 0xf 0xffc10000 0x0 0x10000>; + pcie@0 { + ranges = <0x2000000 0x0 0xe0000000 + 0x2000000 0x0 0xe0000000 + 0x0 0x20000000 + + 0x1000000 0x0 0x0 + 0x1000000 0x0 0x0 + 0x0 0x100000>; + }; + }; + + pci1: pcie@fffe0a000 { + reg = <0xf 0xffe0a000 0 0x1000>; + ranges = <0x2000000 0x0 0xe0000000 0xc 0x00000000 0x0 0x20000000 + 0x1000000 0x0 0x00000000 0xf 0xffc00000 0x0 0x10000>; + pcie@0 { + ranges = <0x2000000 0x0 0xe0000000 + 0x2000000 0x0 0xe0000000 + 0x0 0x20000000 + + 0x1000000 0x0 0x0 + 0x1000000 0x0 0x0 + 0x0 0x100000>; + }; + }; +}; + +/include/ "p1020utm-pc.dtsi" +/include/ "fsl/p1020si-post.dtsi" -- cgit v0.10.2 From 2a78aeb1078994f6dab0173c2ecf5d9803ef0e8e Mon Sep 17 00:00:00 2001 From: Shaveta Leekha Date: Sat, 17 Mar 2012 14:28:56 +0530 Subject: powerpc/85xx: Enable I2C_CHARDEV and I2C_MPC options in defconfigs Enable I2C char dev interface for user space testing of I2C controler. Enable the I2C driver on 64-bit builds (corenet64_smp_defconfig) as it was missing. Signed-off-by: Shaveta Leekha Signed-off-by: Kumar Gala diff --git a/arch/powerpc/configs/corenet32_smp_defconfig b/arch/powerpc/configs/corenet32_smp_defconfig index f8aef20..91db656 100644 --- a/arch/powerpc/configs/corenet32_smp_defconfig +++ b/arch/powerpc/configs/corenet32_smp_defconfig @@ -116,6 +116,7 @@ CONFIG_SERIAL_8250_RSA=y CONFIG_HW_RANDOM=y CONFIG_NVRAM=y CONFIG_I2C=y +CONFIG_I2C_CHARDEV=y CONFIG_I2C_MPC=y CONFIG_SPI=y CONFIG_SPI_GPIO=y diff --git a/arch/powerpc/configs/corenet64_smp_defconfig b/arch/powerpc/configs/corenet64_smp_defconfig index 7ed8d4c..8a42ebb 100644 --- a/arch/powerpc/configs/corenet64_smp_defconfig +++ b/arch/powerpc/configs/corenet64_smp_defconfig @@ -71,6 +71,8 @@ CONFIG_SERIAL_8250_MANY_PORTS=y CONFIG_SERIAL_8250_DETECT_IRQ=y CONFIG_SERIAL_8250_RSA=y CONFIG_I2C=y +CONFIG_I2C_CHARDEV=y +CONFIG_I2C_MPC=y # CONFIG_HWMON is not set CONFIG_VIDEO_OUTPUT_CONTROL=y # CONFIG_HID_SUPPORT is not set diff --git a/arch/powerpc/configs/mpc85xx_defconfig b/arch/powerpc/configs/mpc85xx_defconfig index 5fb0c8a..a068ead 100644 --- a/arch/powerpc/configs/mpc85xx_defconfig +++ b/arch/powerpc/configs/mpc85xx_defconfig @@ -117,6 +117,7 @@ CONFIG_SERIAL_8250_RSA=y CONFIG_SERIAL_QE=m CONFIG_NVRAM=y CONFIG_I2C=y +CONFIG_I2C_CHARDEV=y CONFIG_I2C_CPM=m CONFIG_I2C_MPC=y CONFIG_SPI=y diff --git a/arch/powerpc/configs/mpc85xx_smp_defconfig b/arch/powerpc/configs/mpc85xx_smp_defconfig index fb51bc9..6270dd0 100644 --- a/arch/powerpc/configs/mpc85xx_smp_defconfig +++ b/arch/powerpc/configs/mpc85xx_smp_defconfig @@ -119,6 +119,7 @@ CONFIG_SERIAL_8250_RSA=y CONFIG_SERIAL_QE=m CONFIG_NVRAM=y CONFIG_I2C=y +CONFIG_I2C_CHARDEV=y CONFIG_I2C_CPM=m CONFIG_I2C_MPC=y CONFIG_SPI=y -- cgit v0.10.2 From 3b588c7efc84f15548afdda6a0d2f892fe83babc Mon Sep 17 00:00:00 2001 From: Timur Tabi Date: Thu, 15 Mar 2012 17:41:02 -0500 Subject: powerpc/epapr: add "memory" as a clobber to all hypercalls The "memory" clobber tells the compiler to ensure that all writes to memory are committed before the hypercall is made. "memory" is only necessary for hcalls where the Hypervisor will read or write guest memory. However, we add it to all hcalls because the impact is minimal, and we want to ensure that it's present for the hcalls that need it. Signed-off-by: Timur Tabi Signed-off-by: Kumar Gala diff --git a/arch/powerpc/include/asm/epapr_hcalls.h b/arch/powerpc/include/asm/epapr_hcalls.h index f3b0c2c..976835d 100644 --- a/arch/powerpc/include/asm/epapr_hcalls.h +++ b/arch/powerpc/include/asm/epapr_hcalls.h @@ -134,10 +134,15 @@ * whether they will be clobbered. * * Note that r11 can be used as an output parameter. + * + * The "memory" clobber is only necessary for hcalls where the Hypervisor + * will read or write guest memory. However, we add it to all hcalls because + * the impact is minimal, and we want to ensure that it's present for the + * hcalls that need it. */ /* List of common clobbered registers. Do not use this macro. */ -#define EV_HCALL_CLOBBERS "r0", "r12", "xer", "ctr", "lr", "cc" +#define EV_HCALL_CLOBBERS "r0", "r12", "xer", "ctr", "lr", "cc", "memory" #define EV_HCALL_CLOBBERS8 EV_HCALL_CLOBBERS #define EV_HCALL_CLOBBERS7 EV_HCALL_CLOBBERS8, "r10" -- cgit v0.10.2 From 8a57d734004b8018f3d320455c1816b1e6810265 Mon Sep 17 00:00:00 2001 From: Diana CRACIUN Date: Thu, 9 Feb 2012 15:41:00 +0200 Subject: powerpc/dts: Removed fsl,msi property from dts. The association in the decice tree between PCI and MSI using fsl,msi property was an artificial one and it does not reflect the actual hardware. Signed-off-by: Diana CRACIUN Signed-off-by: Kumar Gala diff --git a/arch/powerpc/boot/dts/p2041rdb.dts b/arch/powerpc/boot/dts/p2041rdb.dts index 4f957db..2852139 100644 --- a/arch/powerpc/boot/dts/p2041rdb.dts +++ b/arch/powerpc/boot/dts/p2041rdb.dts @@ -135,7 +135,6 @@ reg = <0xf 0xfe200000 0 0x1000>; ranges = <0x02000000 0 0xe0000000 0xc 0x00000000 0x0 0x20000000 0x01000000 0 0x00000000 0xf 0xf8000000 0x0 0x00010000>; - fsl,msi = <&msi0>; pcie@0 { ranges = <0x02000000 0 0xe0000000 0x02000000 0 0xe0000000 @@ -151,7 +150,6 @@ reg = <0xf 0xfe201000 0 0x1000>; ranges = <0x02000000 0x0 0xe0000000 0xc 0x20000000 0x0 0x20000000 0x01000000 0x0 0x00000000 0xf 0xf8010000 0x0 0x00010000>; - fsl,msi = <&msi1>; pcie@0 { ranges = <0x02000000 0 0xe0000000 0x02000000 0 0xe0000000 @@ -167,7 +165,6 @@ reg = <0xf 0xfe202000 0 0x1000>; ranges = <0x02000000 0 0xe0000000 0xc 0x40000000 0 0x20000000 0x01000000 0 0x00000000 0xf 0xf8020000 0 0x00010000>; - fsl,msi = <&msi2>; pcie@0 { ranges = <0x02000000 0 0xe0000000 0x02000000 0 0xe0000000 diff --git a/arch/powerpc/boot/dts/p3041ds.dts b/arch/powerpc/boot/dts/p3041ds.dts index f469145..22a215e 100644 --- a/arch/powerpc/boot/dts/p3041ds.dts +++ b/arch/powerpc/boot/dts/p3041ds.dts @@ -173,7 +173,6 @@ reg = <0xf 0xfe200000 0 0x1000>; ranges = <0x02000000 0 0xe0000000 0xc 0x00000000 0x0 0x20000000 0x01000000 0 0x00000000 0xf 0xf8000000 0x0 0x00010000>; - fsl,msi = <&msi0>; pcie@0 { ranges = <0x02000000 0 0xe0000000 0x02000000 0 0xe0000000 @@ -189,7 +188,6 @@ reg = <0xf 0xfe201000 0 0x1000>; ranges = <0x02000000 0x0 0xe0000000 0xc 0x20000000 0x0 0x20000000 0x01000000 0x0 0x00000000 0xf 0xf8010000 0x0 0x00010000>; - fsl,msi = <&msi1>; pcie@0 { ranges = <0x02000000 0 0xe0000000 0x02000000 0 0xe0000000 @@ -205,7 +203,6 @@ reg = <0xf 0xfe202000 0 0x1000>; ranges = <0x02000000 0 0xe0000000 0xc 0x40000000 0 0x20000000 0x01000000 0 0x00000000 0xf 0xf8020000 0 0x00010000>; - fsl,msi = <&msi2>; pcie@0 { ranges = <0x02000000 0 0xe0000000 0x02000000 0 0xe0000000 @@ -221,7 +218,6 @@ reg = <0xf 0xfe203000 0 0x1000>; ranges = <0x02000000 0 0xe0000000 0xc 0x60000000 0 0x20000000 0x01000000 0 0x00000000 0xf 0xf8030000 0 0x00010000>; - fsl,msi = <&msi2>; pcie@0 { ranges = <0x02000000 0 0xe0000000 0x02000000 0 0xe0000000 diff --git a/arch/powerpc/boot/dts/p3060qds.dts b/arch/powerpc/boot/dts/p3060qds.dts index 529042e..9ae875c 100644 --- a/arch/powerpc/boot/dts/p3060qds.dts +++ b/arch/powerpc/boot/dts/p3060qds.dts @@ -212,7 +212,6 @@ reg = <0xf 0xfe200000 0 0x1000>; ranges = <0x02000000 0 0xe0000000 0xc 0x00000000 0x0 0x20000000 0x01000000 0 0x00000000 0xf 0xf8000000 0x0 0x00010000>; - fsl,msi = <&msi0>; pcie@0 { ranges = <0x02000000 0 0xe0000000 0x02000000 0 0xe0000000 @@ -228,7 +227,6 @@ reg = <0xf 0xfe201000 0 0x1000>; ranges = <0x02000000 0x0 0xe0000000 0xc 0x20000000 0x0 0x20000000 0x01000000 0x0 0x00000000 0xf 0xf8010000 0x0 0x00010000>; - fsl,msi = <&msi1>; pcie@0 { ranges = <0x02000000 0 0xe0000000 0x02000000 0 0xe0000000 diff --git a/arch/powerpc/boot/dts/p4080ds.dts b/arch/powerpc/boot/dts/p4080ds.dts index 6d60e54..3e20460 100644 --- a/arch/powerpc/boot/dts/p4080ds.dts +++ b/arch/powerpc/boot/dts/p4080ds.dts @@ -141,7 +141,6 @@ reg = <0xf 0xfe200000 0 0x1000>; ranges = <0x02000000 0 0xe0000000 0xc 0x00000000 0x0 0x20000000 0x01000000 0 0x00000000 0xf 0xf8000000 0x0 0x00010000>; - fsl,msi = <&msi0>; pcie@0 { ranges = <0x02000000 0 0xe0000000 0x02000000 0 0xe0000000 @@ -157,7 +156,6 @@ reg = <0xf 0xfe201000 0 0x1000>; ranges = <0x02000000 0x0 0xe0000000 0xc 0x20000000 0x0 0x20000000 0x01000000 0x0 0x00000000 0xf 0xf8010000 0x0 0x00010000>; - fsl,msi = <&msi1>; pcie@0 { ranges = <0x02000000 0 0xe0000000 0x02000000 0 0xe0000000 @@ -173,7 +171,6 @@ reg = <0xf 0xfe202000 0 0x1000>; ranges = <0x02000000 0 0xe0000000 0xc 0x40000000 0 0x20000000 0x01000000 0 0x00000000 0xf 0xf8020000 0 0x00010000>; - fsl,msi = <&msi2>; pcie@0 { ranges = <0x02000000 0 0xe0000000 0x02000000 0 0xe0000000 diff --git a/arch/powerpc/boot/dts/p5020ds.dts b/arch/powerpc/boot/dts/p5020ds.dts index 1c25068..27c07ed 100644 --- a/arch/powerpc/boot/dts/p5020ds.dts +++ b/arch/powerpc/boot/dts/p5020ds.dts @@ -173,7 +173,6 @@ reg = <0xf 0xfe200000 0 0x1000>; ranges = <0x02000000 0 0xe0000000 0xc 0x00000000 0x0 0x20000000 0x01000000 0 0x00000000 0xf 0xf8000000 0x0 0x00010000>; - fsl,msi = <&msi0>; pcie@0 { ranges = <0x02000000 0 0xe0000000 0x02000000 0 0xe0000000 @@ -189,7 +188,6 @@ reg = <0xf 0xfe201000 0 0x1000>; ranges = <0x02000000 0x0 0xe0000000 0xc 0x20000000 0x0 0x20000000 0x01000000 0x0 0x00000000 0xf 0xf8010000 0x0 0x00010000>; - fsl,msi = <&msi1>; pcie@0 { ranges = <0x02000000 0 0xe0000000 0x02000000 0 0xe0000000 @@ -205,7 +203,6 @@ reg = <0xf 0xfe202000 0 0x1000>; ranges = <0x02000000 0 0xe0000000 0xc 0x40000000 0 0x20000000 0x01000000 0 0x00000000 0xf 0xf8020000 0 0x00010000>; - fsl,msi = <&msi2>; pcie@0 { ranges = <0x02000000 0 0xe0000000 0x02000000 0 0xe0000000 @@ -221,7 +218,6 @@ reg = <0xf 0xfe203000 0 0x1000>; ranges = <0x02000000 0 0xe0000000 0xc 0x60000000 0 0x20000000 0x01000000 0 0x00000000 0xf 0xf8030000 0 0x00010000>; - fsl,msi = <&msi2>; pcie@0 { ranges = <0x02000000 0 0xe0000000 0x02000000 0 0xe0000000 -- cgit v0.10.2 From fa1b42b45a9c96da77f3ddabf715f49525a87209 Mon Sep 17 00:00:00 2001 From: Dave Liu Date: Tue, 12 Jan 2010 00:04:03 +0000 Subject: powerpc/qe: Update the SNUM table for MPC8569 Rev2.0 The MPC8569 Rev2.0 has the correct SNUM table as QE Reference Manual, we must follow it. However the Rev1.0 silicon need the old SNUM table as workaround due to Rev1.0 silicon SNUM erratum. So, we support both snum table, and choose the one FDT tell us. And u-boot will fixup FDT according to SPRN_SVR. Signed-off-by: Liu Yu Signed-off-by: Dave Liu Signed-off-by: Kumar Gala diff --git a/arch/powerpc/sysdev/qe_lib/qe.c b/arch/powerpc/sysdev/qe_lib/qe.c index ceb09cb..818e763 100644 --- a/arch/powerpc/sysdev/qe_lib/qe.c +++ b/arch/powerpc/sysdev/qe_lib/qe.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2006 Freescale Semicondutor, Inc. All rights reserved. + * Copyright (C) 2006-2010 Freescale Semicondutor, Inc. All rights reserved. * * Authors: Shlomi Gridish * Li Yang @@ -266,7 +266,19 @@ EXPORT_SYMBOL(qe_clock_source); static void qe_snums_init(void) { int i; - static const u8 snum_init[] = { + static const u8 snum_init_76[] = { + 0x04, 0x05, 0x0C, 0x0D, 0x14, 0x15, 0x1C, 0x1D, + 0x24, 0x25, 0x2C, 0x2D, 0x34, 0x35, 0x88, 0x89, + 0x98, 0x99, 0xA8, 0xA9, 0xB8, 0xB9, 0xC8, 0xC9, + 0xD8, 0xD9, 0xE8, 0xE9, 0x44, 0x45, 0x4C, 0x4D, + 0x54, 0x55, 0x5C, 0x5D, 0x64, 0x65, 0x6C, 0x6D, + 0x74, 0x75, 0x7C, 0x7D, 0x84, 0x85, 0x8C, 0x8D, + 0x94, 0x95, 0x9C, 0x9D, 0xA4, 0xA5, 0xAC, 0xAD, + 0xB4, 0xB5, 0xBC, 0xBD, 0xC4, 0xC5, 0xCC, 0xCD, + 0xD4, 0xD5, 0xDC, 0xDD, 0xE4, 0xE5, 0xEC, 0xED, + 0xF4, 0xF5, 0xFC, 0xFD, + }; + static const u8 snum_init_46[] = { 0x04, 0x05, 0x0C, 0x0D, 0x14, 0x15, 0x1C, 0x1D, 0x24, 0x25, 0x2C, 0x2D, 0x34, 0x35, 0x88, 0x89, 0x98, 0x99, 0xA8, 0xA9, 0xB8, 0xB9, 0xC8, 0xC9, @@ -274,9 +286,15 @@ static void qe_snums_init(void) 0x28, 0x29, 0x38, 0x39, 0x48, 0x49, 0x58, 0x59, 0x68, 0x69, 0x78, 0x79, 0x80, 0x81, }; + static const u8 *snum_init; qe_num_of_snum = qe_get_num_of_snums(); + if (qe_num_of_snum == 76) + snum_init = snum_init_76; + else + snum_init = snum_init_46; + for (i = 0; i < qe_num_of_snum; i++) { snums[i].num = snum_init[i]; snums[i].state = QE_SNUM_STATE_FREE; diff --git a/drivers/net/ethernet/freescale/ucc_geth.c b/drivers/net/ethernet/freescale/ucc_geth.c index 4e3cd2f..17a46e7 100644 --- a/drivers/net/ethernet/freescale/ucc_geth.c +++ b/drivers/net/ethernet/freescale/ucc_geth.c @@ -3945,6 +3945,8 @@ static int ucc_geth_probe(struct platform_device* ofdev) } if (max_speed == SPEED_1000) { + unsigned int snums = qe_get_num_of_snums(); + /* configure muram FIFOs for gigabit operation */ ug_info->uf_info.urfs = UCC_GETH_URFS_GIGA_INIT; ug_info->uf_info.urfet = UCC_GETH_URFET_GIGA_INIT; @@ -3954,11 +3956,11 @@ static int ucc_geth_probe(struct platform_device* ofdev) ug_info->uf_info.utftt = UCC_GETH_UTFTT_GIGA_INIT; ug_info->numThreadsTx = UCC_GETH_NUM_OF_THREADS_4; - /* If QE's snum number is 46 which means we need to support + /* If QE's snum number is 46/76 which means we need to support * 4 UECs at 1000Base-T simultaneously, we need to allocate * more Threads to Rx. */ - if (qe_get_num_of_snums() == 46) + if ((snums == 76) || (snums == 46)) ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_6; else ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_4; -- cgit v0.10.2 From 4a206ffc0bfe8e8c3fc0468a052f5b0bb625a57b Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 27 Mar 2012 14:41:04 +1000 Subject: drm/nouveau: oops, create m2mf for nvd9 too Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c index a4886b3..c2a8511 100644 --- a/drivers/gpu/drm/nouveau/nouveau_state.c +++ b/drivers/gpu/drm/nouveau/nouveau_state.c @@ -642,7 +642,7 @@ nouveau_card_channel_init(struct drm_device *dev) OUT_RING (chan, chan->vram_handle); OUT_RING (chan, chan->gart_handle); } else - if (dev_priv->card_type <= NV_C0) { + if (dev_priv->card_type <= NV_D0) { ret = nouveau_gpuobj_gr_new(chan, 0x9039, 0x9039); if (ret) goto error; -- cgit v0.10.2 From acde2d8037f4502669af251e44b05579681e0dc1 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Thu, 29 Mar 2012 20:21:32 +1000 Subject: Revert "drm/nouveau: inform userspace of new kernel subchannel requirements" This reverts commit a81f15499887d3f9f24ec70bb9b7e778942a6b7b. Gah, we have a released userspace component using fixed subc assignment that conflicts with this. To avoid breaking ABI this needs to be reverted. Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/nouveau_channel.c b/drivers/gpu/drm/nouveau/nouveau_channel.c index 44e6416..337e228 100644 --- a/drivers/gpu/drm/nouveau/nouveau_channel.c +++ b/drivers/gpu/drm/nouveau/nouveau_channel.c @@ -436,11 +436,18 @@ nouveau_ioctl_fifo_alloc(struct drm_device *dev, void *data, } if (dev_priv->card_type < NV_C0) { - init->subchan[0].handle = NvSw; - init->subchan[0].grclass = NV_SW; - init->nr_subchan = 1; + init->subchan[0].handle = NvM2MF; + if (dev_priv->card_type < NV_50) + init->subchan[0].grclass = 0x0039; + else + init->subchan[0].grclass = 0x5039; + init->subchan[1].handle = NvSw; + init->subchan[1].grclass = NV_SW; + init->nr_subchan = 2; } else { - init->nr_subchan = 0; + init->subchan[0].handle = 0x9039; + init->subchan[0].grclass = 0x9039; + init->nr_subchan = 1; } /* Named memory object area */ diff --git a/drivers/gpu/drm/nouveau/nouveau_dma.h b/drivers/gpu/drm/nouveau/nouveau_dma.h index bcf0fd9..23d4edf 100644 --- a/drivers/gpu/drm/nouveau/nouveau_dma.h +++ b/drivers/gpu/drm/nouveau/nouveau_dma.h @@ -48,8 +48,8 @@ void nv50_dma_push(struct nouveau_channel *, struct nouveau_bo *, /* Hardcoded object assignments to subchannels (subchannel id). */ enum { - NvSubSw = 0, - NvSubM2MF = 1, + NvSubM2MF = 0, + NvSubSw = 1, NvSub2D = 2, NvSubCtxSurf2D = 2, NvSubGdiRect = 3, -- cgit v0.10.2 From 02bfc2881e0d5b23147211bb6420798d946a7b5c Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Thu, 29 Mar 2012 20:24:34 +1000 Subject: drm/nouveau: inform userspace of relaxed kernel subchannel requirements Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/nouveau_channel.c b/drivers/gpu/drm/nouveau/nouveau_channel.c index 337e228..846afb0 100644 --- a/drivers/gpu/drm/nouveau/nouveau_channel.c +++ b/drivers/gpu/drm/nouveau/nouveau_channel.c @@ -436,18 +436,11 @@ nouveau_ioctl_fifo_alloc(struct drm_device *dev, void *data, } if (dev_priv->card_type < NV_C0) { - init->subchan[0].handle = NvM2MF; - if (dev_priv->card_type < NV_50) - init->subchan[0].grclass = 0x0039; - else - init->subchan[0].grclass = 0x5039; + init->subchan[0].handle = 0x00000000; + init->subchan[0].grclass = 0x0000; init->subchan[1].handle = NvSw; init->subchan[1].grclass = NV_SW; init->nr_subchan = 2; - } else { - init->subchan[0].handle = 0x9039; - init->subchan[0].grclass = 0x9039; - init->nr_subchan = 1; } /* Named memory object area */ -- cgit v0.10.2 From 99dd5497e5be4fe4194cad181d45fd6569a930db Mon Sep 17 00:00:00 2001 From: "Liu, Chuansheng" Date: Mon, 26 Mar 2012 07:11:50 +0000 Subject: x86: Preserve lazy irq disable semantics in fixup_irqs() The default irq_disable() sematics are to mark the interrupt disabled, but keep it unmasked. If the interrupt is delivered while marked disabled, the low level interrupt handler masks it and marks it pending. This is important for detecting wakeup interrupts during suspend and for edge type interrupts to avoid losing interrupts. fixup_irqs() moves the interrupts away from an offlined cpu. For certain interrupt types it needs to mask the interrupt line before changing the affinity. After affinity has changed the interrupt line is unmasked again, but only if it is not marked disabled. This breaks the lazy irq disable semantics and causes problems in suspend as the interrupt can be lost or wakeup functionality is broken. Check irqd_irq_masked() instead of irqd_irq_disabled() because irqd_irq_masked() is only set, when the core code actually masked the interrupt line. If it's not set, we unmask the interrupt and let the lazy irq disable logic deal with an eventually incoming interrupt. [ tglx: Massaged changelog and added a comment ] Signed-off-by: liu chuansheng Cc: Yanmin Zhang Link: http://lkml.kernel.org/r/27240C0AC20F114CBF8149A2696CBE4A05DFB3@SHSMSX101.ccr.corp.intel.com Signed-off-by: Thomas Gleixner diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index 7943e0c..3dafc60 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -282,8 +282,13 @@ void fixup_irqs(void) else if (!(warned++)) set_affinity = 0; + /* + * We unmask if the irq was not marked masked by the + * core code. That respects the lazy irq disable + * behaviour. + */ if (!irqd_can_move_in_process_context(data) && - !irqd_irq_disabled(data) && chip->irq_unmask) + !irqd_irq_masked(data) && chip->irq_unmask) chip->irq_unmask(data); raw_spin_unlock(&desc->lock); -- cgit v0.10.2 From e032b376551a61662b20a2c8544fbbc568ab2e7f Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 28 Mar 2012 21:17:55 +0100 Subject: regulator: Fix deadlock on removal of regulators with supplies If a regulator with a supply is being unregistered we will call regulator_put() to release the supply with the regulator_list_mutex held but this deadlocks as regulator_put() takes the same lock. Fix this by releasing the supply before we take the mutex in regulator_unregister(). Signed-off-by: Mark Brown diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index e2f3afa..4a5054e 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2992,14 +2992,14 @@ void regulator_unregister(struct regulator_dev *rdev) if (rdev == NULL) return; + if (rdev->supply) + regulator_put(rdev->supply); mutex_lock(®ulator_list_mutex); debugfs_remove_recursive(rdev->debugfs); flush_work_sync(&rdev->disable_work.work); WARN_ON(rdev->open_count); unset_regulator_supplies(rdev); list_del(&rdev->list); - if (rdev->supply) - regulator_put(rdev->supply); kfree(rdev->constraints); device_unregister(&rdev->dev); mutex_unlock(®ulator_list_mutex); -- cgit v0.10.2 From 7d26bb103c4162003bfdf1d63aaa32b548ad0e9a Mon Sep 17 00:00:00 2001 From: Weiping Pan Date: Tue, 27 Mar 2012 19:18:24 +0000 Subject: bonding: emit event when bonding changes MAC When a bonding device is configured with fail_over_mac=active, we expect to see the MAC address of the new active slave as the source MAC address after failover. But we see that the source MAC address is the MAC address of previous active slave. Emit NETDEV_CHANGEADDR event when bonding changes its MAC address, in order to let arp_netdev_event flush neighbour cache and route cache. How to reproduce this bug ? -----------hostB---------------- hostA ----- switch ---|-- eth0--bond0(192.168.100.2/24)| (192.168.100.1/24 \--|-- eth1-/ | -------------------------------- 1 on hostB, modprobe bonding mode=1 miimon=500 fail_over_mac=active downdelay=1000 num_grat_arp=1 ifconfig bond0 192.168.100.2/24 up ifenslave bond0 eth0 ifenslave bond0 eth1 then eth0 is the active slave, and MAC of bond0 is MAC of eth0. 2 on hostA, ping 192.168.100.2 3 on hostB, tcpdump -i bond0 -p icmp -XXX you will see bond0 uses MAC of eth0 as source MAC in icmp reply. 4 on hostB, ifconfig eth0 down tcpdump -i bond0 -p icmp -XXX (just keep it running in step 3) you will see first bond0 uses MAC of eth1 as source MAC in icmp reply, then it will use MAC of eth0 as source MAC. Signed-off-by: Weiping Pan Signed-off-by: Jay Vosburgh Signed-off-by: David S. Miller diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index b920d82..a20b585 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -892,9 +892,15 @@ static void bond_do_fail_over_mac(struct bonding *bond, switch (bond->params.fail_over_mac) { case BOND_FOM_ACTIVE: - if (new_active) + if (new_active) { memcpy(bond->dev->dev_addr, new_active->dev->dev_addr, new_active->dev->addr_len); + write_unlock_bh(&bond->curr_slave_lock); + read_unlock(&bond->lock); + call_netdevice_notifiers(NETDEV_CHANGEADDR, bond->dev); + read_lock(&bond->lock); + write_lock_bh(&bond->curr_slave_lock); + } break; case BOND_FOM_FOLLOW: /* -- cgit v0.10.2 From 1d24fb3684f347226747c6b11ea426b7b992694e Mon Sep 17 00:00:00 2001 From: "zhuangfeiran@ict.ac.cn" Date: Wed, 28 Mar 2012 23:27:00 +0000 Subject: x86 bpf_jit: fix a bug in emitting the 16-bit immediate operand of AND When K >= 0xFFFF0000, AND needs the two least significant bytes of K as its operand, but EMIT2() gives it the least significant byte of K and 0x2. EMIT() should be used here to replace EMIT2(). Signed-off-by: Feiran Zhuang Acked-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c index 5671752..5a5b6e4 100644 --- a/arch/x86/net/bpf_jit_comp.c +++ b/arch/x86/net/bpf_jit_comp.c @@ -289,7 +289,7 @@ void bpf_jit_compile(struct sk_filter *fp) EMIT2(0x24, K & 0xFF); /* and imm8,%al */ } else if (K >= 0xFFFF0000) { EMIT2(0x66, 0x25); /* and imm16,%ax */ - EMIT2(K, 2); + EMIT(K, 2); } else { EMIT1_off32(0x25, K); /* and imm32,%eax */ } -- cgit v0.10.2 From 78724b8ef83fc2bcfbc0a72a7ad8a3ce5ad25e6a Mon Sep 17 00:00:00 2001 From: Jason Wessel Date: Thu, 29 Mar 2012 06:17:17 -0500 Subject: kdb: Fix smatch warning on dbg_io_ops->is_console The Smatch tool warned that the change from commit b8adde8dd (kdb: Avoid using dbg_io_ops until it is initialized) should add another null check later in the kdb_printf(). It is worth noting that the second use of dbg_io_ops->is_console is protected by the KDB_PAGER state variable which would only get set when kdb is fully active and initialized. If we ever encounter changes or defects in the KDB_PAGER state we do not want to crash the kernel in a kdb_printf/printk. CC: Tim Bird Reported-by: Dan Carpenter Signed-off-by: Jason Wessel diff --git a/kernel/debug/kdb/kdb_io.c b/kernel/debug/kdb/kdb_io.c index 9b5f17d..bb9520f 100644 --- a/kernel/debug/kdb/kdb_io.c +++ b/kernel/debug/kdb/kdb_io.c @@ -743,7 +743,7 @@ kdb_printit: kdb_input_flush(); c = console_drivers; - if (!dbg_io_ops->is_console) { + if (dbg_io_ops && !dbg_io_ops->is_console) { len = strlen(moreprompt); cp = moreprompt; while (len--) { -- cgit v0.10.2 From 456ca7ff24841bf2d2a2dfd690fe7d42ef70d932 Mon Sep 17 00:00:00 2001 From: Jason Wessel Date: Thu, 29 Mar 2012 06:55:44 -0500 Subject: kgdbts: Fix kernel oops with CONFIG_DEBUG_RODATA On x86 the kgdb test suite will oops when the kernel is compiled with CONFIG_DEBUG_RODATA and you run the tests after boot time. This is regression has existed since 2.6.26 by commit: b33cb815 (kgdbts: Use HW breakpoints with CONFIG_DEBUG_RODATA). The test suite can use hw breakpoints for all the tests, but it has to execute the hardware breakpoint specific tests first in order to determine that the hw breakpoints actually work. Specifically the very first test causes an oops: # echo V1I1 > /sys/module/kgdbts/parameters/kgdbts kgdb: Registered I/O driver kgdbts. kgdbts:RUN plant and detach test Entering kdb (current=0xffff880017aa9320, pid 1078) on processor 0 due to Keyboard Entry [0]kdb> kgdbts: ERROR PUT: end of test buffer on 'plant_and_detach_test' line 1 expected OK got $E14#aa WARNING: at drivers/misc/kgdbts.c:730 run_simple_test+0x151/0x2c0() [...oops clipped...] This commit re-orders the running of the tests and puts the RODATA check into its own function so as to correctly avoid the kernel oops by detecting and using the hw breakpoints. Cc: # >= 2.6.26 Signed-off-by: Jason Wessel diff --git a/drivers/misc/kgdbts.c b/drivers/misc/kgdbts.c index 3f7ad83..997e94d 100644 --- a/drivers/misc/kgdbts.c +++ b/drivers/misc/kgdbts.c @@ -885,6 +885,22 @@ static void run_singlestep_break_test(void) kgdbts_break_test(); } +static void test_debug_rodata(void) +{ +#ifdef CONFIG_DEBUG_RODATA + /* Until there is an api to write to read-only text segments, use + * HW breakpoints for the remainder of any tests, else print a + * failure message if hw breakpoints do not work. + */ + if (!(arch_kgdb_ops.flags & KGDB_HW_BREAKPOINT && hwbreaks_ok)) { + eprintk("kgdbts: HW breakpoints BROKEN, ending tests\n"); + return; + } + force_hwbrks = 1; + v1printk("kgdbts:Using HW breakpoints for SW breakpoint tests\n"); +#endif /* CONFIG_DEBUG_RODATA */ +} + static void kgdbts_run_tests(void) { char *ptr; @@ -907,6 +923,18 @@ static void kgdbts_run_tests(void) if (ptr) sstep_test = simple_strtol(ptr+1, NULL, 10); + /* All HW break point tests */ + if (arch_kgdb_ops.flags & KGDB_HW_BREAKPOINT) { + hwbreaks_ok = 1; + v1printk("kgdbts:RUN hw breakpoint test\n"); + run_breakpoint_test(1); + v1printk("kgdbts:RUN hw write breakpoint test\n"); + run_hw_break_test(1); + v1printk("kgdbts:RUN access write breakpoint test\n"); + run_hw_break_test(0); + } + test_debug_rodata(); + /* required internal KGDB tests */ v1printk("kgdbts:RUN plant and detach test\n"); run_plant_and_detach_test(0); @@ -924,35 +952,11 @@ static void kgdbts_run_tests(void) /* ===Optional tests=== */ - /* All HW break point tests */ - if (arch_kgdb_ops.flags & KGDB_HW_BREAKPOINT) { - hwbreaks_ok = 1; - v1printk("kgdbts:RUN hw breakpoint test\n"); - run_breakpoint_test(1); - v1printk("kgdbts:RUN hw write breakpoint test\n"); - run_hw_break_test(1); - v1printk("kgdbts:RUN access write breakpoint test\n"); - run_hw_break_test(0); - } - if (nmi_sleep) { v1printk("kgdbts:RUN NMI sleep %i seconds test\n", nmi_sleep); run_nmi_sleep_test(nmi_sleep); } -#ifdef CONFIG_DEBUG_RODATA - /* Until there is an api to write to read-only text segments, use - * HW breakpoints for the remainder of any tests, else print a - * failure message if hw breakpoints do not work. - */ - if (!(arch_kgdb_ops.flags & KGDB_HW_BREAKPOINT && hwbreaks_ok)) { - eprintk("kgdbts: HW breakpoints do not work," - "skipping remaining tests\n"); - return; - } - force_hwbrks = 1; -#endif /* CONFIG_DEBUG_RODATA */ - /* If the do_fork test is run it will be the last test that is * executed because a kernel thread will be spawned at the very * end to unregister the debug hooks. -- cgit v0.10.2 From 486c5987a00a89d56c2c04c506417ef8f823ca2e Mon Sep 17 00:00:00 2001 From: Jason Wessel Date: Thu, 29 Mar 2012 17:41:24 -0500 Subject: kgdbts: (1 of 2) fix single step awareness to work correctly with SMP The do_fork and sys_open tests have never worked properly on anything other than a UP configuration with the kgdb test suite. This is because the test suite did not fully implement the behavior of a real debugger. A real debugger tracks the state of what thread it asked to single step and can correctly continue other threads of execution or conditionally stop while waiting for the original thread single step request to return. Below is a simple method to cause a fatal kernel oops with the kgdb test suite on a 4 processor x86 system: while [ 1 ] ; do ls > /dev/null 2> /dev/null; done& while [ 1 ] ; do ls > /dev/null 2> /dev/null; done& while [ 1 ] ; do ls > /dev/null 2> /dev/null; done& while [ 1 ] ; do ls > /dev/null 2> /dev/null; done& echo V1I1F1000 > /sys/module/kgdbts/parameters/kgdbts Very soon after starting the test the kernel will oops with a message like: kgdbts: BP mismatch 3b7da66480 expected ffffffff8106a590 WARNING: at drivers/misc/kgdbts.c:303 check_and_rewind_pc+0xe0/0x100() Call Trace: [] check_and_rewind_pc+0xe0/0x100 [] validate_simple_test+0x25/0xc0 [] run_simple_test+0x107/0x2c0 [] kgdbts_put_char+0x18/0x20 The warn will turn to a hard kernel crash shortly after that because the pc will not get properly rewound to the right value after hitting a breakpoint leading to a hard lockup. This change is broken up into 2 pieces because archs that have hw single stepping (2.6.26 and up) need different changes than archs that do not have hw single stepping (3.0 and up). This change implements the correct behavior for an arch that supports hw single stepping. A minor defect was fixed where sys_open should be do_sys_open for the sys_open break point test. This solves the problem of running a 64 bit with a 32 bit user space. The sys_open() never gets called when using the 32 bit file system for the kgdb testsuite because the 32 bit binaries invoke the compat_sys_open() call leading to the test never completing. In order to mimic a real debugger, the kgdb test suite now tracks the most recent thread that was continued (cont_thread_id), with the intent to single step just this thread. When the response to the single step request stops in a different thread that hit the original break point that thread will now get continued, while the debugger waits for the thread with the single step pending. Here is a high level description of the sequence of events. cont_instead_of_sstep = 0; 1) set breakpoint at do_fork 2) continue 3) Save the thread id where we stop to cont_thread_id 4) Remove breakpoint at do_fork 5) Reset the PC if needed depending on kernel exception type 6) if (cont_instead_of_sstep) { continue } else { single step } 7) Check where we stopped if current thread != cont_thread_id { cont_instead_of_sstep = 1; goto step 5 } else { cont_instead_of_sstep = 0; } 8) clean up and run test again if needed Cc: stable@vger.kernel.org # >= 2.6.26 Signed-off-by: Jason Wessel diff --git a/drivers/misc/kgdbts.c b/drivers/misc/kgdbts.c index 997e94d..3cad9fc 100644 --- a/drivers/misc/kgdbts.c +++ b/drivers/misc/kgdbts.c @@ -134,6 +134,9 @@ static int force_hwbrks; static int hwbreaks_ok; static int hw_break_val; static int hw_break_val2; +static int cont_instead_of_sstep; +static unsigned long cont_thread_id; +static unsigned long sstep_thread_id; #if defined(CONFIG_ARM) || defined(CONFIG_MIPS) || defined(CONFIG_SPARC) static int arch_needs_sstep_emulation = 1; #else @@ -211,7 +214,7 @@ static unsigned long lookup_addr(char *arg) if (!strcmp(arg, "kgdbts_break_test")) addr = (unsigned long)kgdbts_break_test; else if (!strcmp(arg, "sys_open")) - addr = (unsigned long)sys_open; + addr = (unsigned long)do_sys_open; else if (!strcmp(arg, "do_fork")) addr = (unsigned long)do_fork; else if (!strcmp(arg, "hw_break_val")) @@ -283,6 +286,16 @@ static void hw_break_val_write(void) hw_break_val++; } +static int get_thread_id_continue(char *put_str, char *arg) +{ + char *ptr = &put_str[11]; + + if (put_str[1] != 'T' || put_str[2] != '0') + return 1; + kgdb_hex2long(&ptr, &cont_thread_id); + return 0; +} + static int check_and_rewind_pc(char *put_str, char *arg) { unsigned long addr = lookup_addr(arg); @@ -324,6 +337,18 @@ static int check_single_step(char *put_str, char *arg) gdb_regs_to_pt_regs(kgdbts_gdb_regs, &kgdbts_regs); v2printk("Singlestep stopped at IP: %lx\n", instruction_pointer(&kgdbts_regs)); + + if (sstep_thread_id != cont_thread_id && !arch_needs_sstep_emulation) { + /* + * Ensure we stopped in the same thread id as before, else the + * debugger should continue until the original thread that was + * single stepped is scheduled again, emulating gdb's behavior. + */ + v2printk("ThrID does not match: %lx\n", cont_thread_id); + cont_instead_of_sstep = 1; + ts.idx -= 4; + return 0; + } if (instruction_pointer(&kgdbts_regs) == addr) { eprintk("kgdbts: SingleStep failed at %lx\n", instruction_pointer(&kgdbts_regs)); @@ -368,7 +393,12 @@ static int got_break(char *put_str, char *arg) static void emul_sstep_get(char *arg) { if (!arch_needs_sstep_emulation) { - fill_get_buf(arg); + if (cont_instead_of_sstep) { + cont_instead_of_sstep = 0; + fill_get_buf("c"); + } else { + fill_get_buf(arg); + } return; } switch (sstep_state) { @@ -398,9 +428,11 @@ static void emul_sstep_get(char *arg) static int emul_sstep_put(char *put_str, char *arg) { if (!arch_needs_sstep_emulation) { - if (!strncmp(put_str+1, arg, 2)) - return 0; - return 1; + char *ptr = &put_str[11]; + if (put_str[1] != 'T' || put_str[2] != '0') + return 1; + kgdb_hex2long(&ptr, &sstep_thread_id); + return 0; } switch (sstep_state) { case 1: @@ -502,10 +534,10 @@ static struct test_struct bad_read_test[] = { static struct test_struct singlestep_break_test[] = { { "?", "S0*" }, /* Clear break points */ { "kgdbts_break_test", "OK", sw_break, }, /* set sw breakpoint */ - { "c", "T0*", }, /* Continue */ + { "c", "T0*", NULL, get_thread_id_continue }, /* Continue */ + { "kgdbts_break_test", "OK", sw_rem_break }, /*remove breakpoint */ { "g", "kgdbts_break_test", NULL, check_and_rewind_pc }, { "write", "OK", write_regs }, /* Write registers */ - { "kgdbts_break_test", "OK", sw_rem_break }, /*remove breakpoint */ { "s", "T0*", emul_sstep_get, emul_sstep_put }, /* Single step */ { "g", "kgdbts_break_test", NULL, check_single_step }, { "kgdbts_break_test", "OK", sw_break, }, /* set sw breakpoint */ @@ -523,10 +555,10 @@ static struct test_struct singlestep_break_test[] = { static struct test_struct do_fork_test[] = { { "?", "S0*" }, /* Clear break points */ { "do_fork", "OK", sw_break, }, /* set sw breakpoint */ - { "c", "T0*", }, /* Continue */ + { "c", "T0*", NULL, get_thread_id_continue }, /* Continue */ + { "do_fork", "OK", sw_rem_break }, /*remove breakpoint */ { "g", "do_fork", NULL, check_and_rewind_pc }, /* check location */ { "write", "OK", write_regs }, /* Write registers */ - { "do_fork", "OK", sw_rem_break }, /*remove breakpoint */ { "s", "T0*", emul_sstep_get, emul_sstep_put }, /* Single step */ { "g", "do_fork", NULL, check_single_step }, { "do_fork", "OK", sw_break, }, /* set sw breakpoint */ @@ -541,10 +573,10 @@ static struct test_struct do_fork_test[] = { static struct test_struct sys_open_test[] = { { "?", "S0*" }, /* Clear break points */ { "sys_open", "OK", sw_break, }, /* set sw breakpoint */ - { "c", "T0*", }, /* Continue */ + { "c", "T0*", NULL, get_thread_id_continue }, /* Continue */ + { "sys_open", "OK", sw_rem_break }, /*remove breakpoint */ { "g", "sys_open", NULL, check_and_rewind_pc }, /* check location */ { "write", "OK", write_regs }, /* Write registers */ - { "sys_open", "OK", sw_rem_break }, /*remove breakpoint */ { "s", "T0*", emul_sstep_get, emul_sstep_put }, /* Single step */ { "g", "sys_open", NULL, check_single_step }, { "sys_open", "OK", sw_break, }, /* set sw breakpoint */ -- cgit v0.10.2 From 23bbd8e346f1ef3fc1219c79cea53d8d52b207d8 Mon Sep 17 00:00:00 2001 From: Jason Wessel Date: Thu, 29 Mar 2012 17:41:24 -0500 Subject: kgdbts: (2 of 2) fix single step awareness to work correctly with SMP The do_fork and sys_open tests have never worked properly on anything other than a UP configuration with the kgdb test suite. This is because the test suite did not fully implement the behavior of a real debugger. A real debugger tracks the state of what thread it asked to single step and can correctly continue other threads of execution or conditionally stop while waiting for the original thread single step request to return. Below is a simple method to cause a fatal kernel oops with the kgdb test suite on a 2 processor ARM system: while [ 1 ] ; do ls > /dev/null 2> /dev/null; done& while [ 1 ] ; do ls > /dev/null 2> /dev/null; done& echo V1I1F100 > /sys/module/kgdbts/parameters/kgdbts Very soon after starting the test the kernel will start warning with messages like: kgdbts: BP mismatch c002487c expected c0024878 ------------[ cut here ]------------ WARNING: at drivers/misc/kgdbts.c:317 check_and_rewind_pc+0x9c/0xc4() [] (check_and_rewind_pc+0x9c/0xc4) [] (validate_simple_test+0x3c/0xc4) [] (run_simple_test+0x1e8/0x274) The kernel will eventually recovers, but the test suite has completely failed to test anything useful. This patch implements behavior similar to a real debugger that does not rely on hardware single stepping by using only software planted breakpoints. In order to mimic a real debugger, the kgdb test suite now tracks the most recent thread that was continued (cont_thread_id), with the intent to single step just this thread. When the response to the single step request stops in a different thread that hit the original break point that thread will now get continued, while the debugger waits for the thread with the single step pending. Here is a high level description of the sequence of events. cont_instead_of_sstep = 0; 1) set breakpoint at do_fork 2) continue 3) Save the thread id where we stop to cont_thread_id 4) Remove breakpoint at do_fork 5) Reset the PC if needed depending on kernel exception type 6) soft single step 7) Check where we stopped if current thread != cont_thread_id { if (here for more than 2 times for the same thead) { ### must be a really busy system, start test again ### goto step 1 } goto step 5 } else { cont_instead_of_sstep = 0; } 8) clean up and run test again if needed 9) Clear out any threads that were waiting on a break point at the point in time the test is ended with get_cont_catch(). This happens sometimes because breakpoints are used in place of single stepping and some threads could have been in the debugger exception handling queue because breakpoints were hit concurrently on different CPUs. This also means we wait at least one second before unplumbing the debugger connection at the very end, so as respond to any debug threads waiting to be serviced. Cc: stable@vger.kernel.org # >= 3.0 Signed-off-by: Jason Wessel diff --git a/drivers/misc/kgdbts.c b/drivers/misc/kgdbts.c index 3cad9fc..d087456 100644 --- a/drivers/misc/kgdbts.c +++ b/drivers/misc/kgdbts.c @@ -142,7 +142,9 @@ static int arch_needs_sstep_emulation = 1; #else static int arch_needs_sstep_emulation; #endif +static unsigned long cont_addr; static unsigned long sstep_addr; +static int restart_from_top_after_write; static int sstep_state; /* Storage for the registers, in GDB format. */ @@ -190,7 +192,8 @@ static int kgdbts_unreg_thread(void *ptr) */ while (!final_ack) msleep_interruptible(1500); - + /* Pause for any other threads to exit after final ack. */ + msleep_interruptible(1000); if (configured) kgdb_unregister_io_module(&kgdbts_io_ops); configured = 0; @@ -312,13 +315,21 @@ static int check_and_rewind_pc(char *put_str, char *arg) if (addr + BREAK_INSTR_SIZE == ip) offset = -BREAK_INSTR_SIZE; #endif - if (strcmp(arg, "silent") && ip + offset != addr) { + + if (arch_needs_sstep_emulation && sstep_addr && + ip + offset == sstep_addr && + ((!strcmp(arg, "sys_open") || !strcmp(arg, "do_fork")))) { + /* This is special case for emulated single step */ + v2printk("Emul: rewind hit single step bp\n"); + restart_from_top_after_write = 1; + } else if (strcmp(arg, "silent") && ip + offset != addr) { eprintk("kgdbts: BP mismatch %lx expected %lx\n", ip + offset, addr); return 1; } /* Readjust the instruction pointer if needed */ ip += offset; + cont_addr = ip; #ifdef GDB_ADJUSTS_BREAK_OFFSET instruction_pointer_set(&kgdbts_regs, ip); #endif @@ -328,6 +339,8 @@ static int check_and_rewind_pc(char *put_str, char *arg) static int check_single_step(char *put_str, char *arg) { unsigned long addr = lookup_addr(arg); + static int matched_id; + /* * From an arch indepent point of view the instruction pointer * should be on a different instruction @@ -338,17 +351,28 @@ static int check_single_step(char *put_str, char *arg) v2printk("Singlestep stopped at IP: %lx\n", instruction_pointer(&kgdbts_regs)); - if (sstep_thread_id != cont_thread_id && !arch_needs_sstep_emulation) { + if (sstep_thread_id != cont_thread_id) { /* * Ensure we stopped in the same thread id as before, else the * debugger should continue until the original thread that was * single stepped is scheduled again, emulating gdb's behavior. */ v2printk("ThrID does not match: %lx\n", cont_thread_id); + if (arch_needs_sstep_emulation) { + if (matched_id && + instruction_pointer(&kgdbts_regs) != addr) + goto continue_test; + matched_id++; + ts.idx -= 2; + sstep_state = 0; + return 0; + } cont_instead_of_sstep = 1; ts.idx -= 4; return 0; } +continue_test: + matched_id = 0; if (instruction_pointer(&kgdbts_regs) == addr) { eprintk("kgdbts: SingleStep failed at %lx\n", instruction_pointer(&kgdbts_regs)); @@ -390,6 +414,31 @@ static int got_break(char *put_str, char *arg) return 1; } +static void get_cont_catch(char *arg) +{ + /* Always send detach because the test is completed at this point */ + fill_get_buf("D"); +} + +static int put_cont_catch(char *put_str, char *arg) +{ + /* This is at the end of the test and we catch any and all input */ + v2printk("kgdbts: cleanup task: %lx\n", sstep_thread_id); + ts.idx--; + return 0; +} + +static int emul_reset(char *put_str, char *arg) +{ + if (strncmp(put_str, "$OK", 3)) + return 1; + if (restart_from_top_after_write) { + restart_from_top_after_write = 0; + ts.idx = -1; + } + return 0; +} + static void emul_sstep_get(char *arg) { if (!arch_needs_sstep_emulation) { @@ -443,8 +492,7 @@ static int emul_sstep_put(char *put_str, char *arg) v2printk("Stopped at IP: %lx\n", instruction_pointer(&kgdbts_regs)); /* Want to stop at IP + break instruction size by default */ - sstep_addr = instruction_pointer(&kgdbts_regs) + - BREAK_INSTR_SIZE; + sstep_addr = cont_addr + BREAK_INSTR_SIZE; break; case 2: if (strncmp(put_str, "$OK", 3)) { @@ -456,6 +504,9 @@ static int emul_sstep_put(char *put_str, char *arg) if (strncmp(put_str, "$T0", 3)) { eprintk("kgdbts: failed continue sstep\n"); return 1; + } else { + char *ptr = &put_str[11]; + kgdb_hex2long(&ptr, &sstep_thread_id); } break; case 4: @@ -558,13 +609,13 @@ static struct test_struct do_fork_test[] = { { "c", "T0*", NULL, get_thread_id_continue }, /* Continue */ { "do_fork", "OK", sw_rem_break }, /*remove breakpoint */ { "g", "do_fork", NULL, check_and_rewind_pc }, /* check location */ - { "write", "OK", write_regs }, /* Write registers */ + { "write", "OK", write_regs, emul_reset }, /* Write registers */ { "s", "T0*", emul_sstep_get, emul_sstep_put }, /* Single step */ { "g", "do_fork", NULL, check_single_step }, { "do_fork", "OK", sw_break, }, /* set sw breakpoint */ { "7", "T0*", skip_back_repeat_test }, /* Loop based on repeat_test */ { "D", "OK", NULL, final_ack_set }, /* detach and unregister I/O */ - { "", "" }, + { "", "", get_cont_catch, put_cont_catch }, }; /* Test for hitting a breakpoint at sys_open for what ever the number @@ -576,13 +627,13 @@ static struct test_struct sys_open_test[] = { { "c", "T0*", NULL, get_thread_id_continue }, /* Continue */ { "sys_open", "OK", sw_rem_break }, /*remove breakpoint */ { "g", "sys_open", NULL, check_and_rewind_pc }, /* check location */ - { "write", "OK", write_regs }, /* Write registers */ + { "write", "OK", write_regs, emul_reset }, /* Write registers */ { "s", "T0*", emul_sstep_get, emul_sstep_put }, /* Single step */ { "g", "sys_open", NULL, check_single_step }, { "sys_open", "OK", sw_break, }, /* set sw breakpoint */ { "7", "T0*", skip_back_repeat_test }, /* Loop based on repeat_test */ { "D", "OK", NULL, final_ack_set }, /* detach and unregister I/O */ - { "", "" }, + { "", "", get_cont_catch, put_cont_catch }, }; /* @@ -725,8 +776,8 @@ static int run_simple_test(int is_get_char, int chr) /* This callback is a put char which is when kgdb sends data to * this I/O module. */ - if (ts.tst[ts.idx].get[0] == '\0' && - ts.tst[ts.idx].put[0] == '\0') { + if (ts.tst[ts.idx].get[0] == '\0' && ts.tst[ts.idx].put[0] == '\0' && + !ts.tst[ts.idx].get_handler) { eprintk("kgdbts: ERROR: beyond end of test on" " '%s' line %i\n", ts.name, ts.idx); return 0; -- cgit v0.10.2 From 98b54aa1a2241b59372468bd1e9c2d207bdba54b Mon Sep 17 00:00:00 2001 From: Jason Wessel Date: Wed, 21 Mar 2012 10:17:03 -0500 Subject: kgdb,debug_core: pass the breakpoint struct instead of address and memory There is extra state information that needs to be exposed in the kgdb_bpt structure for tracking how a breakpoint was installed. The debug_core only uses the the probe_kernel_write() to install breakpoints, but this is not enough for all the archs. Some arch such as x86 need to use text_poke() in order to install a breakpoint into a read only page. Passing the kgdb_bpt structure to kgdb_arch_set_breakpoint() and kgdb_arch_remove_breakpoint() allows other archs to set the type variable which indicates how the breakpoint was installed. Cc: stable@vger.kernel.org # >= 2.6.36 Signed-off-by: Jason Wessel diff --git a/include/linux/kgdb.h b/include/linux/kgdb.h index fa39183..e5d689c 100644 --- a/include/linux/kgdb.h +++ b/include/linux/kgdb.h @@ -207,8 +207,8 @@ extern void kgdb_arch_set_pc(struct pt_regs *regs, unsigned long pc); /* Optional functions. */ extern int kgdb_validate_break_address(unsigned long addr); -extern int kgdb_arch_set_breakpoint(unsigned long addr, char *saved_instr); -extern int kgdb_arch_remove_breakpoint(unsigned long addr, char *bundle); +extern int kgdb_arch_set_breakpoint(struct kgdb_bkpt *bpt); +extern int kgdb_arch_remove_breakpoint(struct kgdb_bkpt *bpt); /** * kgdb_arch_late - Perform any architecture specific initalization. diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c index 3f88a45..a7e52ca 100644 --- a/kernel/debug/debug_core.c +++ b/kernel/debug/debug_core.c @@ -161,37 +161,39 @@ early_param("nokgdbroundup", opt_nokgdbroundup); * Weak aliases for breakpoint management, * can be overriden by architectures when needed: */ -int __weak kgdb_arch_set_breakpoint(unsigned long addr, char *saved_instr) +int __weak kgdb_arch_set_breakpoint(struct kgdb_bkpt *bpt) { int err; - err = probe_kernel_read(saved_instr, (char *)addr, BREAK_INSTR_SIZE); + err = probe_kernel_read(bpt->saved_instr, (char *)bpt->bpt_addr, + BREAK_INSTR_SIZE); if (err) return err; - - return probe_kernel_write((char *)addr, arch_kgdb_ops.gdb_bpt_instr, - BREAK_INSTR_SIZE); + err = probe_kernel_write((char *)bpt->bpt_addr, + arch_kgdb_ops.gdb_bpt_instr, BREAK_INSTR_SIZE); + return err; } -int __weak kgdb_arch_remove_breakpoint(unsigned long addr, char *bundle) +int __weak kgdb_arch_remove_breakpoint(struct kgdb_bkpt *bpt) { - return probe_kernel_write((char *)addr, - (char *)bundle, BREAK_INSTR_SIZE); + return probe_kernel_write((char *)bpt->bpt_addr, + (char *)bpt->saved_instr, BREAK_INSTR_SIZE); } int __weak kgdb_validate_break_address(unsigned long addr) { - char tmp_variable[BREAK_INSTR_SIZE]; + struct kgdb_bkpt tmp; int err; - /* Validate setting the breakpoint and then removing it. In the + /* Validate setting the breakpoint and then removing it. If the * remove fails, the kernel needs to emit a bad message because we * are deep trouble not being able to put things back the way we * found them. */ - err = kgdb_arch_set_breakpoint(addr, tmp_variable); + tmp.bpt_addr = addr; + err = kgdb_arch_set_breakpoint(&tmp); if (err) return err; - err = kgdb_arch_remove_breakpoint(addr, tmp_variable); + err = kgdb_arch_remove_breakpoint(&tmp); if (err) printk(KERN_ERR "KGDB: Critical breakpoint error, kernel " "memory destroyed at: %lx", addr); @@ -235,7 +237,6 @@ static void kgdb_flush_swbreak_addr(unsigned long addr) */ int dbg_activate_sw_breakpoints(void) { - unsigned long addr; int error; int ret = 0; int i; @@ -244,16 +245,15 @@ int dbg_activate_sw_breakpoints(void) if (kgdb_break[i].state != BP_SET) continue; - addr = kgdb_break[i].bpt_addr; - error = kgdb_arch_set_breakpoint(addr, - kgdb_break[i].saved_instr); + error = kgdb_arch_set_breakpoint(&kgdb_break[i]); if (error) { ret = error; - printk(KERN_INFO "KGDB: BP install failed: %lx", addr); + printk(KERN_INFO "KGDB: BP install failed: %lx", + kgdb_break[i].bpt_addr); continue; } - kgdb_flush_swbreak_addr(addr); + kgdb_flush_swbreak_addr(kgdb_break[i].bpt_addr); kgdb_break[i].state = BP_ACTIVE; } return ret; @@ -302,7 +302,6 @@ int dbg_set_sw_break(unsigned long addr) int dbg_deactivate_sw_breakpoints(void) { - unsigned long addr; int error; int ret = 0; int i; @@ -310,15 +309,14 @@ int dbg_deactivate_sw_breakpoints(void) for (i = 0; i < KGDB_MAX_BREAKPOINTS; i++) { if (kgdb_break[i].state != BP_ACTIVE) continue; - addr = kgdb_break[i].bpt_addr; - error = kgdb_arch_remove_breakpoint(addr, - kgdb_break[i].saved_instr); + error = kgdb_arch_remove_breakpoint(&kgdb_break[i]); if (error) { - printk(KERN_INFO "KGDB: BP remove failed: %lx\n", addr); + printk(KERN_INFO "KGDB: BP remove failed: %lx\n", + kgdb_break[i].bpt_addr); ret = error; } - kgdb_flush_swbreak_addr(addr); + kgdb_flush_swbreak_addr(kgdb_break[i].bpt_addr); kgdb_break[i].state = BP_SET; } return ret; @@ -352,7 +350,6 @@ int kgdb_isremovedbreak(unsigned long addr) int dbg_remove_all_break(void) { - unsigned long addr; int error; int i; @@ -360,12 +357,10 @@ int dbg_remove_all_break(void) for (i = 0; i < KGDB_MAX_BREAKPOINTS; i++) { if (kgdb_break[i].state != BP_ACTIVE) goto setundefined; - addr = kgdb_break[i].bpt_addr; - error = kgdb_arch_remove_breakpoint(addr, - kgdb_break[i].saved_instr); + error = kgdb_arch_remove_breakpoint(&kgdb_break[i]); if (error) printk(KERN_ERR "KGDB: breakpoint remove failed: %lx\n", - addr); + kgdb_break[i].bpt_addr); setundefined: kgdb_break[i].state = BP_UNDEFINED; } -- cgit v0.10.2 From 3751d3e85cf693e10e2c47c03c8caa65e171099b Mon Sep 17 00:00:00 2001 From: Jason Wessel Date: Fri, 23 Mar 2012 09:35:05 -0500 Subject: x86,kgdb: Fix DEBUG_RODATA limitation using text_poke() There has long been a limitation using software breakpoints with a kernel compiled with CONFIG_DEBUG_RODATA going back to 2.6.26. For this particular patch, it will apply cleanly and has been tested all the way back to 2.6.36. The kprobes code uses the text_poke() function which accommodates writing a breakpoint into a read-only page. The x86 kgdb code can solve the problem similarly by overriding the default breakpoint set/remove routines and using text_poke() directly. The x86 kgdb code will first attempt to use the traditional probe_kernel_write(), and next try using a the text_poke() function. The break point install method is tracked such that the correct break point removal routine will get called later on. Cc: x86@kernel.org Cc: Thomas Gleixner Cc: Ingo Molnar Cc: H. Peter Anvin Cc: stable@vger.kernel.org # >= 2.6.36 Inspried-by: Masami Hiramatsu Signed-off-by: Jason Wessel diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c index fdc37b3..b9bd9d8 100644 --- a/arch/x86/kernel/kgdb.c +++ b/arch/x86/kernel/kgdb.c @@ -43,6 +43,8 @@ #include #include #include +#include +#include #include #include @@ -742,6 +744,64 @@ void kgdb_arch_set_pc(struct pt_regs *regs, unsigned long ip) regs->ip = ip; } +int kgdb_arch_set_breakpoint(struct kgdb_bkpt *bpt) +{ + int err; + char opc[BREAK_INSTR_SIZE]; + + bpt->type = BP_BREAKPOINT; + err = probe_kernel_read(bpt->saved_instr, (char *)bpt->bpt_addr, + BREAK_INSTR_SIZE); + if (err) + return err; + err = probe_kernel_write((char *)bpt->bpt_addr, + arch_kgdb_ops.gdb_bpt_instr, BREAK_INSTR_SIZE); +#ifdef CONFIG_DEBUG_RODATA + if (!err) + return err; + /* + * It is safe to call text_poke() because normal kernel execution + * is stopped on all cores, so long as the text_mutex is not locked. + */ + if (mutex_is_locked(&text_mutex)) + return -EBUSY; + text_poke((void *)bpt->bpt_addr, arch_kgdb_ops.gdb_bpt_instr, + BREAK_INSTR_SIZE); + err = probe_kernel_read(opc, (char *)bpt->bpt_addr, BREAK_INSTR_SIZE); + if (err) + return err; + if (memcmp(opc, arch_kgdb_ops.gdb_bpt_instr, BREAK_INSTR_SIZE)) + return -EINVAL; + bpt->type = BP_POKE_BREAKPOINT; +#endif /* CONFIG_DEBUG_RODATA */ + return err; +} + +int kgdb_arch_remove_breakpoint(struct kgdb_bkpt *bpt) +{ +#ifdef CONFIG_DEBUG_RODATA + int err; + char opc[BREAK_INSTR_SIZE]; + + if (bpt->type != BP_POKE_BREAKPOINT) + goto knl_write; + /* + * It is safe to call text_poke() because normal kernel execution + * is stopped on all cores, so long as the text_mutex is not locked. + */ + if (mutex_is_locked(&text_mutex)) + goto knl_write; + text_poke((void *)bpt->bpt_addr, bpt->saved_instr, BREAK_INSTR_SIZE); + err = probe_kernel_read(opc, (char *)bpt->bpt_addr, BREAK_INSTR_SIZE); + if (err || memcmp(opc, bpt->saved_instr, BREAK_INSTR_SIZE)) + goto knl_write; + return err; +knl_write: +#endif /* CONFIG_DEBUG_RODATA */ + return probe_kernel_write((char *)bpt->bpt_addr, + (char *)bpt->saved_instr, BREAK_INSTR_SIZE); +} + struct kgdb_arch arch_kgdb_ops = { /* Breakpoint instruction: */ .gdb_bpt_instr = { 0xcc }, diff --git a/drivers/misc/kgdbts.c b/drivers/misc/kgdbts.c index d087456..3aa9a96 100644 --- a/drivers/misc/kgdbts.c +++ b/drivers/misc/kgdbts.c @@ -968,22 +968,6 @@ static void run_singlestep_break_test(void) kgdbts_break_test(); } -static void test_debug_rodata(void) -{ -#ifdef CONFIG_DEBUG_RODATA - /* Until there is an api to write to read-only text segments, use - * HW breakpoints for the remainder of any tests, else print a - * failure message if hw breakpoints do not work. - */ - if (!(arch_kgdb_ops.flags & KGDB_HW_BREAKPOINT && hwbreaks_ok)) { - eprintk("kgdbts: HW breakpoints BROKEN, ending tests\n"); - return; - } - force_hwbrks = 1; - v1printk("kgdbts:Using HW breakpoints for SW breakpoint tests\n"); -#endif /* CONFIG_DEBUG_RODATA */ -} - static void kgdbts_run_tests(void) { char *ptr; @@ -1016,7 +1000,6 @@ static void kgdbts_run_tests(void) v1printk("kgdbts:RUN access write breakpoint test\n"); run_hw_break_test(0); } - test_debug_rodata(); /* required internal KGDB tests */ v1printk("kgdbts:RUN plant and detach test\n"); diff --git a/include/linux/kgdb.h b/include/linux/kgdb.h index e5d689c..c4d2fc1 100644 --- a/include/linux/kgdb.h +++ b/include/linux/kgdb.h @@ -63,7 +63,8 @@ enum kgdb_bptype { BP_HARDWARE_BREAKPOINT, BP_WRITE_WATCHPOINT, BP_READ_WATCHPOINT, - BP_ACCESS_WATCHPOINT + BP_ACCESS_WATCHPOINT, + BP_POKE_BREAKPOINT, }; enum kgdb_bpstate { -- cgit v0.10.2 From f6365201d8a21fb347260f89d6e9b3e718d63c70 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Thu, 29 Mar 2012 14:49:17 -0700 Subject: x86: Remove the ancient and deprecated disable_hlt() and enable_hlt() facility The X86_32-only disable_hlt/enable_hlt mechanism was used by the 32-bit floppy driver. Its effect was to replace the use of the HLT instruction inside default_idle() with cpu_relax() - essentially it turned off the use of HLT. This workaround was commented in the code as: "disable hlt during certain critical i/o operations" "This halt magic was a workaround for ancient floppy DMA wreckage. It should be safe to remove." H. Peter Anvin additionally adds: "To the best of my knowledge, no-hlt only existed because of flaky power distributions on 386/486 systems which were sold to run DOS. Since DOS did no power management of any kind, including HLT, the power draw was fairly uniform; when exposed to the much hhigher noise levels you got when Linux used HLT caused some of these systems to fail. They were by far in the minority even back then." Alan Cox further says: "Also for the Cyrix 5510 which tended to go castors up if a HLT occurred during a DMA cycle and on a few other boxes HLT during DMA tended to go astray. Do we care ? I doubt it. The 5510 was pretty obscure, the 5520 fixed it, the 5530 is probably the oldest still in any kind of use." So, let's finally drop this. Signed-off-by: Len Brown Signed-off-by: Josh Boyer Signed-off-by: Andrew Morton Acked-by: "H. Peter Anvin" Acked-by: Alan Cox Cc: Stephen Hemminger Cc: Link: http://lkml.kernel.org/n/tip-3rhk9bzf0x9rljkv488tloib@git.kernel.org [ If anyone cares then alternative instruction patching could be used to replace HLT with a one-byte NOP instruction. Much simpler. ] Signed-off-by: Ingo Molnar diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 0cad480..7c950d4 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -6,14 +6,6 @@ be removed from this file. --------------------------- -What: x86 floppy disable_hlt -When: 2012 -Why: ancient workaround of dubious utility clutters the - code used by everybody else. -Who: Len Brown - ---------------------------- - What: CONFIG_APM_CPU_IDLE, and its ability to call APM BIOS in idle When: 2012 Why: This optional sub-feature of APM is of dubious reliability, diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index 7284c9a..4fa7dcc 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -974,16 +974,6 @@ extern bool cpu_has_amd_erratum(const int *); #define cpu_has_amd_erratum(x) (false) #endif /* CONFIG_CPU_SUP_AMD */ -#ifdef CONFIG_X86_32 -/* - * disable hlt during certain critical i/o operations - */ -#define HAVE_DISABLE_HLT -#endif - -void disable_hlt(void); -void enable_hlt(void); - void cpu_idle_wait(void); extern unsigned long arch_align_stack(unsigned long sp); diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index a33afaa..1d92a5a 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -362,34 +362,10 @@ void (*pm_idle)(void); EXPORT_SYMBOL(pm_idle); #endif -#ifdef CONFIG_X86_32 -/* - * This halt magic was a workaround for ancient floppy DMA - * wreckage. It should be safe to remove. - */ -static int hlt_counter; -void disable_hlt(void) -{ - hlt_counter++; -} -EXPORT_SYMBOL(disable_hlt); - -void enable_hlt(void) -{ - hlt_counter--; -} -EXPORT_SYMBOL(enable_hlt); - -static inline int hlt_use_halt(void) -{ - return (!hlt_counter && boot_cpu_data.hlt_works_ok); -} -#else static inline int hlt_use_halt(void) { return 1; } -#endif #ifndef CONFIG_SMP static inline void play_dead(void) diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 76a0823..b0b00d7 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -1030,37 +1030,6 @@ static int fd_wait_for_completion(unsigned long delay, timeout_fn function) return 0; } -static DEFINE_SPINLOCK(floppy_hlt_lock); -static int hlt_disabled; -static void floppy_disable_hlt(void) -{ - unsigned long flags; - - WARN_ONCE(1, "floppy_disable_hlt() scheduled for removal in 2012"); - spin_lock_irqsave(&floppy_hlt_lock, flags); - if (!hlt_disabled) { - hlt_disabled = 1; -#ifdef HAVE_DISABLE_HLT - disable_hlt(); -#endif - } - spin_unlock_irqrestore(&floppy_hlt_lock, flags); -} - -static void floppy_enable_hlt(void) -{ - unsigned long flags; - - spin_lock_irqsave(&floppy_hlt_lock, flags); - if (hlt_disabled) { - hlt_disabled = 0; -#ifdef HAVE_DISABLE_HLT - enable_hlt(); -#endif - } - spin_unlock_irqrestore(&floppy_hlt_lock, flags); -} - static void setup_DMA(void) { unsigned long f; @@ -1105,7 +1074,6 @@ static void setup_DMA(void) fd_enable_dma(); release_dma_lock(f); #endif - floppy_disable_hlt(); } static void show_floppy(void); @@ -1707,7 +1675,6 @@ irqreturn_t floppy_interrupt(int irq, void *dev_id) fd_disable_dma(); release_dma_lock(f); - floppy_enable_hlt(); do_floppy = NULL; if (fdc >= N_FDC || FDCS->address == -1) { /* we don't even know which FDC is the culprit */ @@ -1856,8 +1823,6 @@ static void floppy_shutdown(unsigned long data) show_floppy(); cancel_activity(); - floppy_enable_hlt(); - flags = claim_dma_lock(); fd_disable_dma(); release_dma_lock(flags); @@ -4508,7 +4473,6 @@ static void floppy_release_irq_and_dma(void) #if N_FDC > 1 set_dor(1, ~8, 0); #endif - floppy_enable_hlt(); if (floppy_track_buffer && max_buffer_sectors) { tmpsize = max_buffer_sectors * 1024; -- cgit v0.10.2 From ac64a9caa55bdfd8d24784f25c68cb7919ddabe3 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Fri, 30 Mar 2012 08:21:38 +0200 Subject: microblaze: Fix stack usage in PAGE_SIZE copy_tofrom_user If access to user space failed we need to reconstruct stack pointer and restore all register. This patch fixed problem introduces by: "microblaze: Add loop unrolling for PAGE in copy_tofrom_user" (sha1: ebe211254bfa6295f4ab0b33c7c881bdfabbab60) Signed-off-by: Michal Simek diff --git a/arch/microblaze/lib/uaccess_old.S b/arch/microblaze/lib/uaccess_old.S index f037266..f085995 100644 --- a/arch/microblaze/lib/uaccess_old.S +++ b/arch/microblaze/lib/uaccess_old.S @@ -122,22 +122,22 @@ __strnlen_user: 15: swi r24, r5, 0x0018 + offset; \ 16: swi r25, r5, 0x001C + offset; \ .section __ex_table,"a"; \ - .word 1b, 0f; \ - .word 2b, 0f; \ - .word 3b, 0f; \ - .word 4b, 0f; \ - .word 5b, 0f; \ - .word 6b, 0f; \ - .word 7b, 0f; \ - .word 8b, 0f; \ - .word 9b, 0f; \ - .word 10b, 0f; \ - .word 11b, 0f; \ - .word 12b, 0f; \ - .word 13b, 0f; \ - .word 14b, 0f; \ - .word 15b, 0f; \ - .word 16b, 0f; \ + .word 1b, 33f; \ + .word 2b, 33f; \ + .word 3b, 33f; \ + .word 4b, 33f; \ + .word 5b, 33f; \ + .word 6b, 33f; \ + .word 7b, 33f; \ + .word 8b, 33f; \ + .word 9b, 33f; \ + .word 10b, 33f; \ + .word 11b, 33f; \ + .word 12b, 33f; \ + .word 13b, 33f; \ + .word 14b, 33f; \ + .word 15b, 33f; \ + .word 16b, 33f; \ .text #define COPY_80(offset) \ @@ -190,14 +190,17 @@ w2: sw r4, r5, r3 .align 4 /* Alignment is important to keep icache happy */ page: /* Create room on stack and save registers for storign values */ - addik r1, r1, -32 - swi r19, r1, 4 - swi r20, r1, 8 - swi r21, r1, 12 - swi r22, r1, 16 - swi r23, r1, 20 - swi r24, r1, 24 - swi r25, r1, 28 + addik r1, r1, -40 + swi r5, r1, 0 + swi r6, r1, 4 + swi r7, r1, 8 + swi r19, r1, 12 + swi r20, r1, 16 + swi r21, r1, 20 + swi r22, r1, 24 + swi r23, r1, 28 + swi r24, r1, 32 + swi r25, r1, 36 loop: /* r4, r19, r20, r21, r22, r23, r24, r25 are used for storing values */ /* Loop unrolling to get performance boost */ COPY_80(0x000); @@ -205,21 +208,44 @@ loop: /* r4, r19, r20, r21, r22, r23, r24, r25 are used for storing values */ COPY_80(0x100); COPY_80(0x180); /* copy loop */ - addik r6, r6, 0x200 - addik r7, r7, -0x200 - bneid r7, loop - addik r5, r5, 0x200 + addik r6, r6, 0x200 + addik r7, r7, -0x200 + bneid r7, loop + addik r5, r5, 0x200 + /* Restore register content */ - lwi r19, r1, 4 - lwi r20, r1, 8 - lwi r21, r1, 12 - lwi r22, r1, 16 - lwi r23, r1, 20 - lwi r24, r1, 24 - lwi r25, r1, 28 - addik r1, r1, 32 + lwi r5, r1, 0 + lwi r6, r1, 4 + lwi r7, r1, 8 + lwi r19, r1, 12 + lwi r20, r1, 16 + lwi r21, r1, 20 + lwi r22, r1, 24 + lwi r23, r1, 28 + lwi r24, r1, 32 + lwi r25, r1, 36 + addik r1, r1, 40 /* return back */ + addik r3, r0, 0 + rtsd r15, 8 + nop + +/* Fault case - return temp count */ +33: addik r3, r7, 0 + /* Restore register content */ + lwi r5, r1, 0 + lwi r6, r1, 4 + lwi r7, r1, 8 + lwi r19, r1, 12 + lwi r20, r1, 16 + lwi r21, r1, 20 + lwi r22, r1, 24 + lwi r23, r1, 28 + lwi r24, r1, 32 + lwi r25, r1, 36 + addik r1, r1, 40 + /* return back */ rtsd r15, 8 nop -- cgit v0.10.2 From 90c0d80daa82fa9cbaa85d1a787375b33877d2d4 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Fri, 30 Mar 2012 11:29:38 +0200 Subject: microblaze: Add missing headers caused by disintegration asm/system.h It should be the part of patch "Disintegrate asm/system.h for Microblaze" (sha1: c40d04df152a1111c5bbcb632278394dabd2b73d) Signed-off-by: Michal Simek diff --git a/arch/microblaze/include/asm/cmpxchg.h b/arch/microblaze/include/asm/cmpxchg.h index 0094859a..538afc0 100644 --- a/arch/microblaze/include/asm/cmpxchg.h +++ b/arch/microblaze/include/asm/cmpxchg.h @@ -1,6 +1,8 @@ #ifndef _ASM_MICROBLAZE_CMPXCHG_H #define _ASM_MICROBLAZE_CMPXCHG_H +#include + void __bad_xchg(volatile void *ptr, int size); static inline unsigned long __xchg(unsigned long x, volatile void *ptr, diff --git a/arch/microblaze/kernel/unwind.c b/arch/microblaze/kernel/unwind.c index 9781a52..6be4ae3 100644 --- a/arch/microblaze/kernel/unwind.c +++ b/arch/microblaze/kernel/unwind.c @@ -24,6 +24,7 @@ #include #include #include +#include struct stack_trace; -- cgit v0.10.2 From f03c4866d31e913a8dbc84f7d1459abdaf0bd326 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Fri, 30 Mar 2012 19:29:57 +0900 Subject: sh: fix up fallout from system.h disintegration. Quite a bit of fallout all over the place, nothing terribly exciting. Signed-off-by: Paul Mundt diff --git a/arch/sh/boards/board-sh7785lcr.c b/arch/sh/boards/board-sh7785lcr.c index d879848..d0d6221 100644 --- a/arch/sh/boards/board-sh7785lcr.c +++ b/arch/sh/boards/board-sh7785lcr.c @@ -28,6 +28,7 @@ #include #include #include +#include /* * NOTE: This board has 2 physical memory maps. diff --git a/arch/sh/boards/mach-hp6xx/pm.c b/arch/sh/boards/mach-hp6xx/pm.c index adc9b4b..8b50cf7 100644 --- a/arch/sh/boards/mach-hp6xx/pm.c +++ b/arch/sh/boards/mach-hp6xx/pm.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include #include diff --git a/arch/sh/kernel/cpu/fpu.c b/arch/sh/kernel/cpu/fpu.c index 7f1b70c..f8f7af5 100644 --- a/arch/sh/kernel/cpu/fpu.c +++ b/arch/sh/kernel/cpu/fpu.c @@ -2,6 +2,7 @@ #include #include #include +#include int init_fpu(struct task_struct *tsk) { diff --git a/arch/sh/kernel/cpu/sh2a/fpu.c b/arch/sh/kernel/cpu/sh2a/fpu.c index 488d24e..98bbaa4 100644 --- a/arch/sh/kernel/cpu/sh2a/fpu.c +++ b/arch/sh/kernel/cpu/sh2a/fpu.c @@ -14,6 +14,7 @@ #include #include #include +#include /* The PR (precision) bit in the FP Status Register must be clear when * an frchg instruction is executed, otherwise the instruction is undefined. diff --git a/arch/sh/kernel/cpu/sh4/fpu.c b/arch/sh/kernel/cpu/sh4/fpu.c index e74cd6c..69ab4d3 100644 --- a/arch/sh/kernel/cpu/sh4/fpu.c +++ b/arch/sh/kernel/cpu/sh4/fpu.c @@ -16,6 +16,7 @@ #include #include #include +#include /* The PR (precision) bit in the FP Status Register must be clear when * an frchg instruction is executed, otherwise the instruction is undefined. diff --git a/arch/sh/kernel/cpu/shmobile/pm.c b/arch/sh/kernel/cpu/shmobile/pm.c index a6f95ae..08d27fa 100644 --- a/arch/sh/kernel/cpu/shmobile/pm.c +++ b/arch/sh/kernel/cpu/shmobile/pm.c @@ -16,6 +16,7 @@ #include #include #include +#include /* * Notifier lists for pre/post sleep notification diff --git a/arch/sh/kernel/idle.c b/arch/sh/kernel/idle.c index 64852ec..ee226e2 100644 --- a/arch/sh/kernel/idle.c +++ b/arch/sh/kernel/idle.c @@ -17,8 +17,8 @@ #include #include #include -#include #include +#include #include #include diff --git a/arch/sh/kernel/kgdb.c b/arch/sh/kernel/kgdb.c index efb6d39..b117781 100644 --- a/arch/sh/kernel/kgdb.c +++ b/arch/sh/kernel/kgdb.c @@ -14,6 +14,7 @@ #include #include #include +#include /* Macros for single step instruction identification */ #define OPCODE_BT(op) (((op) & 0xff00) == 0x8900) diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c index f72e3a9..94273aa 100644 --- a/arch/sh/kernel/process_32.c +++ b/arch/sh/kernel/process_32.c @@ -26,6 +26,7 @@ #include #include #include +#include void show_regs(struct pt_regs * regs) { diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c index a17a14d..eaebdf6 100644 --- a/arch/sh/kernel/smp.c +++ b/arch/sh/kernel/smp.c @@ -27,6 +27,7 @@ #include #include #include +#include int __cpu_number_map[NR_CPUS]; /* Map physical to logical */ int __cpu_logical_map[NR_CPUS]; /* Map logical to physical */ diff --git a/arch/sh/mm/cache-sh4.c b/arch/sh/mm/cache-sh4.c index 112fea1..0e52928 100644 --- a/arch/sh/mm/cache-sh4.c +++ b/arch/sh/mm/cache-sh4.c @@ -18,6 +18,7 @@ #include #include #include +#include #include /* diff --git a/arch/sh/mm/flush-sh4.c b/arch/sh/mm/flush-sh4.c index 75a17f5..0b85dd9 100644 --- a/arch/sh/mm/flush-sh4.c +++ b/arch/sh/mm/flush-sh4.c @@ -1,5 +1,6 @@ #include #include +#include #include #include diff --git a/arch/sh/mm/sram.c b/arch/sh/mm/sram.c index bc156ec..2d8fa71 100644 --- a/arch/sh/mm/sram.c +++ b/arch/sh/mm/sram.c @@ -9,6 +9,7 @@ */ #include #include +#include #include /* -- cgit v0.10.2 From da47f4a3186b4f55914cceffb51adfa55ef4897e Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Fri, 30 Mar 2012 19:31:22 +0900 Subject: sh: dwarf unwinder depends on SHcompact. Presently there's no SHmedia support plugged in for the dwarf unwinder. While it's trivial to provide an SHmedia version of dwarf_read_arch_reg(), the general sh64 case is more complicated in that the TLB miss handler uses a locked down set of registers for optimization (including the frame pointer) which we need for the unwind table generation. While freeing up the frame pointer for use in the TLB miss handler is reasonably straightforward, it's still more trouble than it's worth, so we simply restrict the unwinder to 32-bit for now. Signed-off-by: Paul Mundt diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug index c1d5a82..5f2bb42 100644 --- a/arch/sh/Kconfig.debug +++ b/arch/sh/Kconfig.debug @@ -61,6 +61,7 @@ config DUMP_CODE config DWARF_UNWINDER bool "Enable the DWARF unwinder for stacktraces" select FRAME_POINTER + depends on SUPERH32 default n help Enabling this option will make stacktraces more accurate, at -- cgit v0.10.2 From 8bcb6c7d48eb341b1f49f814cdcbe05eb6f15680 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Fri, 30 Mar 2012 12:33:28 +0200 Subject: block: use lockdep_assert_held for queue locking Instead of an ugly open coded variant. Cc: axboe@kernel.dk Signed-off-by: Andi Kleen Signed-off-by: Jens Axboe diff --git a/block/blk-throttle.c b/block/blk-throttle.c index 5eed6a7..f2ddb94 100644 --- a/block/blk-throttle.c +++ b/block/blk-throttle.c @@ -1218,7 +1218,7 @@ void blk_throtl_drain(struct request_queue *q) struct bio_list bl; struct bio *bio; - WARN_ON_ONCE(!queue_is_locked(q)); + queue_lockdep_assert_held(q); bio_list_init(&bl); diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 606cf33..2aa2466 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -426,14 +426,10 @@ struct request_queue { (1 << QUEUE_FLAG_SAME_COMP) | \ (1 << QUEUE_FLAG_ADD_RANDOM)) -static inline int queue_is_locked(struct request_queue *q) +static inline void queue_lockdep_assert_held(struct request_queue *q) { -#ifdef CONFIG_SMP - spinlock_t *lock = q->queue_lock; - return lock && spin_is_locked(lock); -#else - return 1; -#endif + if (q->queue_lock) + lockdep_assert_held(q->queue_lock); } static inline void queue_flag_set_unlocked(unsigned int flag, @@ -445,7 +441,7 @@ static inline void queue_flag_set_unlocked(unsigned int flag, static inline int queue_flag_test_and_clear(unsigned int flag, struct request_queue *q) { - WARN_ON_ONCE(!queue_is_locked(q)); + queue_lockdep_assert_held(q); if (test_bit(flag, &q->queue_flags)) { __clear_bit(flag, &q->queue_flags); @@ -458,7 +454,7 @@ static inline int queue_flag_test_and_clear(unsigned int flag, static inline int queue_flag_test_and_set(unsigned int flag, struct request_queue *q) { - WARN_ON_ONCE(!queue_is_locked(q)); + queue_lockdep_assert_held(q); if (!test_bit(flag, &q->queue_flags)) { __set_bit(flag, &q->queue_flags); @@ -470,7 +466,7 @@ static inline int queue_flag_test_and_set(unsigned int flag, static inline void queue_flag_set(unsigned int flag, struct request_queue *q) { - WARN_ON_ONCE(!queue_is_locked(q)); + queue_lockdep_assert_held(q); __set_bit(flag, &q->queue_flags); } @@ -487,7 +483,7 @@ static inline int queue_in_flight(struct request_queue *q) static inline void queue_flag_clear(unsigned int flag, struct request_queue *q) { - WARN_ON_ONCE(!queue_is_locked(q)); + queue_lockdep_assert_held(q); __clear_bit(flag, &q->queue_flags); } -- cgit v0.10.2 From 87c34ed3aba9249cb06d1a1f100cd3618f29268c Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Fri, 30 Mar 2012 19:36:03 +0900 Subject: sh: dma: Fix up device attribute mismatch from sysdev fallout. This fixes up an attribute mismatch that was introduced in the sysdev->struct device migration. Signed-off-by: Paul Mundt diff --git a/arch/sh/drivers/dma/dma-sysfs.c b/arch/sh/drivers/dma/dma-sysfs.c index b1cb271..67ee956 100644 --- a/arch/sh/drivers/dma/dma-sysfs.c +++ b/arch/sh/drivers/dma/dma-sysfs.c @@ -54,7 +54,7 @@ static int __init dma_subsys_init(void) if (unlikely(ret)) return ret; - return device_create_file(dma_subsys.dev_root, &dev_attr_devices.attr); + return device_create_file(dma_subsys.dev_root, &dev_attr_devices); } postcore_initcall(dma_subsys_init); -- cgit v0.10.2 From cd34e202faa4be7f77fd2f7a59824f13dc14901b Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Fri, 30 Mar 2012 19:42:26 +0900 Subject: sh: vsyscall: Fix up .eh_frame generation. Some improper formatting caused the .eh_frame generation to fail, resulting in gcc/g++ testsuite failures with regards to unwinding through the vDSO. Now that someone is actually working on this on the gcc side it's time to fix up the kernel side, too. Signed-off-by: Paul Mundt diff --git a/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S b/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S index 555a64f..23af175 100644 --- a/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S +++ b/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S @@ -34,6 +34,41 @@ __kernel_rt_sigreturn: 1: .short __NR_rt_sigreturn .LEND_rt_sigreturn: .size __kernel_rt_sigreturn,.-.LSTART_rt_sigreturn + .previous .section .eh_frame,"a",@progbits +.LCIE1: + .ualong .LCIE1_end - .LCIE1_start +.LCIE1_start: + .ualong 0 /* CIE ID */ + .byte 0x1 /* Version number */ + .string "zRS" /* NUL-terminated augmentation string */ + .uleb128 0x1 /* Code alignment factor */ + .sleb128 -4 /* Data alignment factor */ + .byte 0x11 /* Return address register column */ + .uleb128 0x1 /* Augmentation length and data */ + .byte 0x1b /* DW_EH_PE_pcrel | DW_EH_PE_sdata4. */ + .byte 0xc, 0xf, 0x0 /* DW_CFA_def_cfa: r15 ofs 0 */ + + .align 2 +.LCIE1_end: + + .ualong .LFDE0_end-.LFDE0_start /* Length FDE0 */ +.LFDE0_start: + .ualong .LFDE0_start-.LCIE1 /* CIE pointer */ + .ualong .LSTART_sigreturn-. /* PC-relative start address */ + .ualong .LEND_sigreturn-.LSTART_sigreturn + .uleb128 0 /* Augmentation */ + .align 2 +.LFDE0_end: + + .ualong .LFDE1_end-.LFDE1_start /* Length FDE1 */ +.LFDE1_start: + .ualong .LFDE1_start-.LCIE1 /* CIE pointer */ + .ualong .LSTART_rt_sigreturn-. /* PC-relative start address */ + .ualong .LEND_rt_sigreturn-.LSTART_rt_sigreturn + .uleb128 0 /* Augmentation */ + .align 2 +.LFDE1_end: + .previous diff --git a/arch/sh/kernel/vsyscall/vsyscall-trapa.S b/arch/sh/kernel/vsyscall/vsyscall-trapa.S index 3e70f85..0eb74d0 100644 --- a/arch/sh/kernel/vsyscall/vsyscall-trapa.S +++ b/arch/sh/kernel/vsyscall/vsyscall-trapa.S @@ -3,37 +3,34 @@ .type __kernel_vsyscall,@function __kernel_vsyscall: .LSTART_vsyscall: - /* XXX: We'll have to do something here once we opt to use the vDSO - * page for something other than the signal trampoline.. as well as - * fill out .eh_frame -- PFM. */ + trapa #0x10 + nop .LEND_vsyscall: .size __kernel_vsyscall,.-.LSTART_vsyscall + .previous .section .eh_frame,"a",@progbits - .previous .LCIE: .ualong .LCIE_end - .LCIE_start .LCIE_start: .ualong 0 /* CIE ID */ .byte 0x1 /* Version number */ - .string "zRS" /* NUL-terminated augmentation string */ + .string "zR" /* NUL-terminated augmentation string */ .uleb128 0x1 /* Code alignment factor */ .sleb128 -4 /* Data alignment factor */ .byte 0x11 /* Return address register column */ - /* Augmentation length and data (none) */ - .byte 0xc /* DW_CFA_def_cfa */ - .uleb128 0xf /* r15 */ - .uleb128 0x0 /* offset 0 */ - + .uleb128 0x1 /* Augmentation length and data */ + .byte 0x1b /* DW_EH_PE_pcrel | DW_EH_PE_sdata4. */ + .byte 0xc,0xf,0x0 /* DW_CFA_def_cfa: r15 ofs 0 */ .align 2 .LCIE_end: .ualong .LFDE_end-.LFDE_start /* Length FDE */ .LFDE_start: - .ualong .LCIE /* CIE pointer */ - .ualong .LSTART_vsyscall-. /* start address */ + .ualong .LFDE_start-.LCIE /* CIE pointer */ + .ualong .LSTART_vsyscall-. /* PC-relative start address */ .ualong .LEND_vsyscall-.LSTART_vsyscall - .uleb128 0 + .uleb128 0 /* Augmentation */ .align 2 .LFDE_end: .previous -- cgit v0.10.2 From d9d54540147336c75f81c36c342b3bfec0d4d60d Mon Sep 17 00:00:00 2001 From: Russell King Date: Fri, 30 Mar 2012 11:44:15 +0100 Subject: ARM: sa11x0: fix build errors from DMA engine API updates The recent merge of the sa11x0 code into mainline had silent conflicts with further development of the DMA engine API, leading to build errors and warnings: drivers/net/irda/sa1100_ir.c: In function 'sa1100_irda_dma_start': drivers/net/irda/sa1100_ir.c:151: error: too few arguments to function 'chan->device->device_prep_slave_sg' drivers/dma/sa11x0-dma.c: In function 'sa11x0_dma_probe': drivers/dma/sa11x0-dma.c:950: warning: assignment from incompatible pointer type Fix these. Signed-off-by: Russell King diff --git a/drivers/dma/sa11x0-dma.c b/drivers/dma/sa11x0-dma.c index 16a6b48..ec78cce 100644 --- a/drivers/dma/sa11x0-dma.c +++ b/drivers/dma/sa11x0-dma.c @@ -585,7 +585,7 @@ static dma_cookie_t sa11x0_dma_tx_submit(struct dma_async_tx_descriptor *tx) static struct dma_async_tx_descriptor *sa11x0_dma_prep_slave_sg( struct dma_chan *chan, struct scatterlist *sg, unsigned int sglen, - enum dma_transfer_direction dir, unsigned long flags) + enum dma_transfer_direction dir, unsigned long flags, void *context) { struct sa11x0_dma_chan *c = to_sa11x0_dma_chan(chan); struct sa11x0_dma_desc *txd; diff --git a/drivers/net/irda/sa1100_ir.c b/drivers/net/irda/sa1100_ir.c index a0d1913..e250675 100644 --- a/drivers/net/irda/sa1100_ir.c +++ b/drivers/net/irda/sa1100_ir.c @@ -147,7 +147,7 @@ static void sa1100_irda_dma_start(struct sa1100_buf *buf, struct dma_async_tx_descriptor *desc; struct dma_chan *chan = buf->chan; - desc = chan->device->device_prep_slave_sg(chan, &buf->sg, 1, dir, + desc = dmaengine_prep_slave_sg(chan, &buf->sg, 1, dir, DMA_PREP_INTERRUPT | DMA_CTRL_ACK); if (desc) { desc->callback = cb; -- cgit v0.10.2 From b12bb29f847050b8e75e445c839a2d42989213df Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Fri, 30 Mar 2012 19:50:15 +0900 Subject: serial: sh-sci: use serial_port_in/out vs sci_in/out. Follows the 8250 change for pretty much the same rationale. See commit "serial: use serial_port_in/out vs serial_in/out in 8250". Signed-off-by: Paul Mundt diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index bf461cf..3158e17 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -355,9 +355,6 @@ static void sci_serial_out(struct uart_port *p, int offset, int value) WARN(1, "Invalid register access\n"); } -#define sci_in(up, offset) (up->serial_in(up, offset)) -#define sci_out(up, offset, value) (up->serial_out(up, offset, value)) - static int sci_probe_regmap(struct plat_sci_port *cfg) { switch (cfg->type) { @@ -422,9 +419,9 @@ static int sci_poll_get_char(struct uart_port *port) int c; do { - status = sci_in(port, SCxSR); + status = serial_port_in(port, SCxSR); if (status & SCxSR_ERRORS(port)) { - sci_out(port, SCxSR, SCxSR_ERROR_CLEAR(port)); + serial_port_out(port, SCxSR, SCxSR_ERROR_CLEAR(port)); continue; } break; @@ -433,11 +430,11 @@ static int sci_poll_get_char(struct uart_port *port) if (!(status & SCxSR_RDxF(port))) return NO_POLL_CHAR; - c = sci_in(port, SCxRDR); + c = serial_port_in(port, SCxRDR); /* Dummy read */ - sci_in(port, SCxSR); - sci_out(port, SCxSR, SCxSR_RDxF_CLEAR(port)); + serial_port_in(port, SCxSR); + serial_port_out(port, SCxSR, SCxSR_RDxF_CLEAR(port)); return c; } @@ -448,11 +445,11 @@ static void sci_poll_put_char(struct uart_port *port, unsigned char c) unsigned short status; do { - status = sci_in(port, SCxSR); + status = serial_port_in(port, SCxSR); } while (!(status & SCxSR_TDxE(port))); - sci_out(port, SCxTDR, c); - sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port) & ~SCxSR_TEND(port)); + serial_port_out(port, SCxTDR, c); + serial_port_out(port, SCxSR, SCxSR_TDxE_CLEAR(port) & ~SCxSR_TEND(port)); } #endif /* CONFIG_CONSOLE_POLL || CONFIG_SERIAL_SH_SCI_CONSOLE */ @@ -480,10 +477,10 @@ static void sci_init_pins(struct uart_port *port, unsigned int cflag) ((!(cflag & CRTSCTS)))) { unsigned short status; - status = sci_in(port, SCSPTR); + status = serial_port_in(port, SCSPTR); status &= ~SCSPTR_CTSIO; status |= SCSPTR_RTSIO; - sci_out(port, SCSPTR, status); /* Set RTS = 1 */ + serial_port_out(port, SCSPTR, status); /* Set RTS = 1 */ } } @@ -493,13 +490,13 @@ static int sci_txfill(struct uart_port *port) reg = sci_getreg(port, SCTFDR); if (reg->size) - return sci_in(port, SCTFDR) & 0xff; + return serial_port_in(port, SCTFDR) & 0xff; reg = sci_getreg(port, SCFDR); if (reg->size) - return sci_in(port, SCFDR) >> 8; + return serial_port_in(port, SCFDR) >> 8; - return !(sci_in(port, SCxSR) & SCI_TDRE); + return !(serial_port_in(port, SCxSR) & SCI_TDRE); } static int sci_txroom(struct uart_port *port) @@ -513,13 +510,13 @@ static int sci_rxfill(struct uart_port *port) reg = sci_getreg(port, SCRFDR); if (reg->size) - return sci_in(port, SCRFDR) & 0xff; + return serial_port_in(port, SCRFDR) & 0xff; reg = sci_getreg(port, SCFDR); if (reg->size) - return sci_in(port, SCFDR) & ((port->fifosize << 1) - 1); + return serial_port_in(port, SCFDR) & ((port->fifosize << 1) - 1); - return (sci_in(port, SCxSR) & SCxSR_RDxF(port)) != 0; + return (serial_port_in(port, SCxSR) & SCxSR_RDxF(port)) != 0; } /* @@ -547,14 +544,14 @@ static void sci_transmit_chars(struct uart_port *port) unsigned short ctrl; int count; - status = sci_in(port, SCxSR); + status = serial_port_in(port, SCxSR); if (!(status & SCxSR_TDxE(port))) { - ctrl = sci_in(port, SCSCR); + ctrl = serial_port_in(port, SCSCR); if (uart_circ_empty(xmit)) ctrl &= ~SCSCR_TIE; else ctrl |= SCSCR_TIE; - sci_out(port, SCSCR, ctrl); + serial_port_out(port, SCSCR, ctrl); return; } @@ -573,27 +570,27 @@ static void sci_transmit_chars(struct uart_port *port) break; } - sci_out(port, SCxTDR, c); + serial_port_out(port, SCxTDR, c); port->icount.tx++; } while (--count > 0); - sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port)); + serial_port_out(port, SCxSR, SCxSR_TDxE_CLEAR(port)); if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) uart_write_wakeup(port); if (uart_circ_empty(xmit)) { sci_stop_tx(port); } else { - ctrl = sci_in(port, SCSCR); + ctrl = serial_port_in(port, SCSCR); if (port->type != PORT_SCI) { - sci_in(port, SCxSR); /* Dummy read */ - sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port)); + serial_port_in(port, SCxSR); /* Dummy read */ + serial_port_out(port, SCxSR, SCxSR_TDxE_CLEAR(port)); } ctrl |= SCSCR_TIE; - sci_out(port, SCSCR, ctrl); + serial_port_out(port, SCSCR, ctrl); } } @@ -608,7 +605,7 @@ static void sci_receive_chars(struct uart_port *port) unsigned short status; unsigned char flag; - status = sci_in(port, SCxSR); + status = serial_port_in(port, SCxSR); if (!(status & SCxSR_RDxF(port))) return; @@ -621,7 +618,7 @@ static void sci_receive_chars(struct uart_port *port) break; if (port->type == PORT_SCI) { - char c = sci_in(port, SCxRDR); + char c = serial_port_in(port, SCxRDR); if (uart_handle_sysrq_char(port, c) || sci_port->break_flag) count = 0; @@ -629,9 +626,9 @@ static void sci_receive_chars(struct uart_port *port) tty_insert_flip_char(tty, c, TTY_NORMAL); } else { for (i = 0; i < count; i++) { - char c = sci_in(port, SCxRDR); + char c = serial_port_in(port, SCxRDR); - status = sci_in(port, SCxSR); + status = serial_port_in(port, SCxSR); #if defined(CONFIG_CPU_SH3) /* Skip "chars" during break */ if (sci_port->break_flag) { @@ -672,8 +669,8 @@ static void sci_receive_chars(struct uart_port *port) } } - sci_in(port, SCxSR); /* dummy read */ - sci_out(port, SCxSR, SCxSR_RDxF_CLEAR(port)); + serial_port_in(port, SCxSR); /* dummy read */ + serial_port_out(port, SCxSR, SCxSR_RDxF_CLEAR(port)); copied += count; port->icount.rx += count; @@ -683,8 +680,8 @@ static void sci_receive_chars(struct uart_port *port) /* Tell the rest of the system the news. New characters! */ tty_flip_buffer_push(tty); } else { - sci_in(port, SCxSR); /* dummy read */ - sci_out(port, SCxSR, SCxSR_RDxF_CLEAR(port)); + serial_port_in(port, SCxSR); /* dummy read */ + serial_port_out(port, SCxSR, SCxSR_RDxF_CLEAR(port)); } } @@ -726,7 +723,7 @@ static void sci_break_timer(unsigned long data) static int sci_handle_errors(struct uart_port *port) { int copied = 0; - unsigned short status = sci_in(port, SCxSR); + unsigned short status = serial_port_in(port, SCxSR); struct tty_struct *tty = port->state->port.tty; struct sci_port *s = to_sci_port(port); @@ -804,8 +801,8 @@ static int sci_handle_fifo_overrun(struct uart_port *port) if (!reg->size) return 0; - if ((sci_in(port, SCLSR) & (1 << s->cfg->overrun_bit))) { - sci_out(port, SCLSR, 0); + if ((serial_port_in(port, SCLSR) & (1 << s->cfg->overrun_bit))) { + serial_port_out(port, SCLSR, 0); port->icount.overrun++; @@ -822,7 +819,7 @@ static int sci_handle_fifo_overrun(struct uart_port *port) static int sci_handle_breaks(struct uart_port *port) { int copied = 0; - unsigned short status = sci_in(port, SCxSR); + unsigned short status = serial_port_in(port, SCxSR); struct tty_struct *tty = port->state->port.tty; struct sci_port *s = to_sci_port(port); @@ -859,8 +856,8 @@ static irqreturn_t sci_rx_interrupt(int irq, void *ptr) struct sci_port *s = to_sci_port(port); if (s->chan_rx) { - u16 scr = sci_in(port, SCSCR); - u16 ssr = sci_in(port, SCxSR); + u16 scr = serial_port_in(port, SCSCR); + u16 ssr = serial_port_in(port, SCxSR); /* Disable future Rx interrupts */ if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) { @@ -869,9 +866,9 @@ static irqreturn_t sci_rx_interrupt(int irq, void *ptr) } else { scr &= ~SCSCR_RIE; } - sci_out(port, SCSCR, scr); + serial_port_out(port, SCSCR, scr); /* Clear current interrupt */ - sci_out(port, SCxSR, ssr & ~(1 | SCxSR_RDxF(port))); + serial_port_out(port, SCxSR, ssr & ~(1 | SCxSR_RDxF(port))); dev_dbg(port->dev, "Rx IRQ %lu: setup t-out in %u jiffies\n", jiffies, s->rx_timeout); mod_timer(&s->rx_timer, jiffies + s->rx_timeout); @@ -909,15 +906,15 @@ static irqreturn_t sci_er_interrupt(int irq, void *ptr) if (port->type == PORT_SCI) { if (sci_handle_errors(port)) { /* discard character in rx buffer */ - sci_in(port, SCxSR); - sci_out(port, SCxSR, SCxSR_RDxF_CLEAR(port)); + serial_port_in(port, SCxSR); + serial_port_out(port, SCxSR, SCxSR_RDxF_CLEAR(port)); } } else { sci_handle_fifo_overrun(port); sci_rx_interrupt(irq, ptr); } - sci_out(port, SCxSR, SCxSR_ERROR_CLEAR(port)); + serial_port_out(port, SCxSR, SCxSR_ERROR_CLEAR(port)); /* Kick the transmission */ sci_tx_interrupt(irq, ptr); @@ -931,7 +928,7 @@ static irqreturn_t sci_br_interrupt(int irq, void *ptr) /* Handle BREAKs */ sci_handle_breaks(port); - sci_out(port, SCxSR, SCxSR_BREAK_CLEAR(port)); + serial_port_out(port, SCxSR, SCxSR_BREAK_CLEAR(port)); return IRQ_HANDLED; } @@ -955,8 +952,8 @@ static irqreturn_t sci_mpxed_interrupt(int irq, void *ptr) struct sci_port *s = to_sci_port(port); irqreturn_t ret = IRQ_NONE; - ssr_status = sci_in(port, SCxSR); - scr_status = sci_in(port, SCSCR); + ssr_status = serial_port_in(port, SCxSR); + scr_status = serial_port_in(port, SCSCR); err_enabled = scr_status & port_rx_irq_mask(port); /* Tx Interrupt */ @@ -1170,7 +1167,7 @@ static void sci_free_gpios(struct sci_port *port) static unsigned int sci_tx_empty(struct uart_port *port) { - unsigned short status = sci_in(port, SCxSR); + unsigned short status = serial_port_in(port, SCxSR); unsigned short in_tx_fifo = sci_txfill(port); return (status & SCxSR_TEND(port)) && !in_tx_fifo ? TIOCSER_TEMT : 0; @@ -1198,7 +1195,7 @@ static void sci_set_mctrl(struct uart_port *port, unsigned int mctrl) */ reg = sci_getreg(port, SCFCR); if (reg->size) - sci_out(port, SCFCR, sci_in(port, SCFCR) | 1); + serial_port_out(port, SCFCR, serial_port_in(port, SCFCR) | 1); } } @@ -1240,8 +1237,8 @@ static void sci_dma_tx_complete(void *arg) } else { s->cookie_tx = -EINVAL; if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) { - u16 ctrl = sci_in(port, SCSCR); - sci_out(port, SCSCR, ctrl & ~SCSCR_TIE); + u16 ctrl = serial_port_in(port, SCSCR); + serial_port_out(port, SCSCR, ctrl & ~SCSCR_TIE); } } @@ -1494,13 +1491,13 @@ static void sci_start_tx(struct uart_port *port) #ifdef CONFIG_SERIAL_SH_SCI_DMA if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) { - u16 new, scr = sci_in(port, SCSCR); + u16 new, scr = serial_port_in(port, SCSCR); if (s->chan_tx) new = scr | 0x8000; else new = scr & ~0x8000; if (new != scr) - sci_out(port, SCSCR, new); + serial_port_out(port, SCSCR, new); } if (s->chan_tx && !uart_circ_empty(&s->port.state->xmit) && @@ -1512,8 +1509,8 @@ static void sci_start_tx(struct uart_port *port) if (!s->chan_tx || port->type == PORT_SCIFA || port->type == PORT_SCIFB) { /* Set TIE (Transmit Interrupt Enable) bit in SCSCR */ - ctrl = sci_in(port, SCSCR); - sci_out(port, SCSCR, ctrl | SCSCR_TIE); + ctrl = serial_port_in(port, SCSCR); + serial_port_out(port, SCSCR, ctrl | SCSCR_TIE); } } @@ -1522,40 +1519,40 @@ static void sci_stop_tx(struct uart_port *port) unsigned short ctrl; /* Clear TIE (Transmit Interrupt Enable) bit in SCSCR */ - ctrl = sci_in(port, SCSCR); + ctrl = serial_port_in(port, SCSCR); if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) ctrl &= ~0x8000; ctrl &= ~SCSCR_TIE; - sci_out(port, SCSCR, ctrl); + serial_port_out(port, SCSCR, ctrl); } static void sci_start_rx(struct uart_port *port) { unsigned short ctrl; - ctrl = sci_in(port, SCSCR) | port_rx_irq_mask(port); + ctrl = serial_port_in(port, SCSCR) | port_rx_irq_mask(port); if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) ctrl &= ~0x4000; - sci_out(port, SCSCR, ctrl); + serial_port_out(port, SCSCR, ctrl); } static void sci_stop_rx(struct uart_port *port) { unsigned short ctrl; - ctrl = sci_in(port, SCSCR); + ctrl = serial_port_in(port, SCSCR); if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) ctrl &= ~0x4000; ctrl &= ~port_rx_irq_mask(port); - sci_out(port, SCSCR, ctrl); + serial_port_out(port, SCSCR, ctrl); } static void sci_enable_ms(struct uart_port *port) @@ -1589,13 +1586,13 @@ static void rx_timer_fn(unsigned long arg) { struct sci_port *s = (struct sci_port *)arg; struct uart_port *port = &s->port; - u16 scr = sci_in(port, SCSCR); + u16 scr = serial_port_in(port, SCSCR); if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) { scr &= ~0x4000; enable_irq(s->cfg->irqs[1]); } - sci_out(port, SCSCR, scr | SCSCR_RIE); + serial_port_out(port, SCSCR, scr | SCSCR_RIE); dev_dbg(port->dev, "DMA Rx timed out\n"); schedule_work(&s->work_rx); } @@ -1776,14 +1773,14 @@ static void sci_reset(struct uart_port *port) unsigned int status; do { - status = sci_in(port, SCxSR); + status = serial_port_in(port, SCxSR); } while (!(status & SCxSR_TEND(port))); - sci_out(port, SCSCR, 0x00); /* TE=0, RE=0, CKE1=0 */ + serial_port_out(port, SCSCR, 0x00); /* TE=0, RE=0, CKE1=0 */ reg = sci_getreg(port, SCFCR); if (reg->size) - sci_out(port, SCFCR, SCFCR_RFRST | SCFCR_TFRST); + serial_port_out(port, SCFCR, SCFCR_RFRST | SCFCR_TFRST); } static void sci_set_termios(struct uart_port *port, struct ktermios *termios, @@ -1812,7 +1809,7 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios, sci_reset(port); - smr_val = sci_in(port, SCSMR) & 3; + smr_val = serial_port_in(port, SCSMR) & 3; if ((termios->c_cflag & CSIZE) == CS7) smr_val |= 0x40; @@ -1825,19 +1822,19 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios, uart_update_timeout(port, termios->c_cflag, baud); - sci_out(port, SCSMR, smr_val); + serial_port_out(port, SCSMR, smr_val); dev_dbg(port->dev, "%s: SMR %x, t %x, SCSCR %x\n", __func__, smr_val, t, s->cfg->scscr); if (t > 0) { if (t >= 256) { - sci_out(port, SCSMR, (sci_in(port, SCSMR) & ~3) | 1); + serial_port_out(port, SCSMR, (serial_port_in(port, SCSMR) & ~3) | 1); t >>= 2; } else - sci_out(port, SCSMR, sci_in(port, SCSMR) & ~3); + serial_port_out(port, SCSMR, serial_port_in(port, SCSMR) & ~3); - sci_out(port, SCBRR, t); + serial_port_out(port, SCBRR, t); udelay((1000000+(baud-1)) / baud); /* Wait one bit interval */ } @@ -1845,7 +1842,7 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios, reg = sci_getreg(port, SCFCR); if (reg->size) { - unsigned short ctrl = sci_in(port, SCFCR); + unsigned short ctrl = serial_port_in(port, SCFCR); if (s->cfg->capabilities & SCIx_HAVE_RTSCTS) { if (termios->c_cflag & CRTSCTS) @@ -1861,10 +1858,10 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios, */ ctrl &= ~(SCFCR_RFRST | SCFCR_TFRST); - sci_out(port, SCFCR, ctrl); + serial_port_out(port, SCFCR, ctrl); } - sci_out(port, SCSCR, s->cfg->scscr); + serial_port_out(port, SCSCR, s->cfg->scscr); #ifdef CONFIG_SERIAL_SH_SCI_DMA /* @@ -2166,7 +2163,7 @@ static void serial_console_write(struct console *co, const char *s, /* wait until fifo is empty and last bit has been transmitted */ bits = SCxSR_TDxE(port) | SCxSR_TEND(port); - while ((sci_in(port, SCxSR) & bits) != bits) + while ((serial_port_in(port, SCxSR) & bits) != bits) cpu_relax(); sci_port_disable(sci_port); @@ -2260,12 +2257,12 @@ static int sci_runtime_suspend(struct device *dev) if (uart_console(port)) { struct plat_sci_reg *reg; - sci_port->saved_smr = sci_in(port, SCSMR); - sci_port->saved_brr = sci_in(port, SCBRR); + sci_port->saved_smr = serial_port_in(port, SCSMR); + sci_port->saved_brr = serial_port_in(port, SCBRR); reg = sci_getreg(port, SCFCR); if (reg->size) - sci_port->saved_fcr = sci_in(port, SCFCR); + sci_port->saved_fcr = serial_port_in(port, SCFCR); else sci_port->saved_fcr = 0; } @@ -2279,13 +2276,13 @@ static int sci_runtime_resume(struct device *dev) if (uart_console(port)) { sci_reset(port); - sci_out(port, SCSMR, sci_port->saved_smr); - sci_out(port, SCBRR, sci_port->saved_brr); + serial_port_out(port, SCSMR, sci_port->saved_smr); + serial_port_out(port, SCBRR, sci_port->saved_brr); if (sci_port->saved_fcr) - sci_out(port, SCFCR, sci_port->saved_fcr); + serial_port_out(port, SCFCR, sci_port->saved_fcr); - sci_out(port, SCSCR, sci_port->cfg->scscr); + serial_port_out(port, SCSCR, sci_port->cfg->scscr); } return 0; } diff --git a/drivers/tty/serial/sh-sci.h b/drivers/tty/serial/sh-sci.h index a1a2d36..4c22a15 100644 --- a/drivers/tty/serial/sh-sci.h +++ b/drivers/tty/serial/sh-sci.h @@ -20,10 +20,10 @@ defined(CONFIG_ARCH_SH7372) || \ defined(CONFIG_ARCH_R8A7740) -# define SCxSR_RDxF_CLEAR(port) (sci_in(port, SCxSR) & 0xfffc) -# define SCxSR_ERROR_CLEAR(port) (sci_in(port, SCxSR) & 0xfd73) -# define SCxSR_TDxE_CLEAR(port) (sci_in(port, SCxSR) & 0xffdf) -# define SCxSR_BREAK_CLEAR(port) (sci_in(port, SCxSR) & 0xffe3) +# define SCxSR_RDxF_CLEAR(port) (serial_port_in(port, SCxSR) & 0xfffc) +# define SCxSR_ERROR_CLEAR(port) (serial_port_in(port, SCxSR) & 0xfd73) +# define SCxSR_TDxE_CLEAR(port) (serial_port_in(port, SCxSR) & 0xffdf) +# define SCxSR_BREAK_CLEAR(port) (serial_port_in(port, SCxSR) & 0xffe3) #else # define SCxSR_RDxF_CLEAR(port) (((port)->type == PORT_SCI) ? 0xbc : 0x00fc) # define SCxSR_ERROR_CLEAR(port) (((port)->type == PORT_SCI) ? 0xc4 : 0x0073) -- cgit v0.10.2 From fa0d1dbf7fb6b6f1af85d298a4054fe9edc914c9 Mon Sep 17 00:00:00 2001 From: Russell King Date: Fri, 30 Mar 2012 11:51:46 +0100 Subject: ARM: fix missing bug.h include in arch/arm/kernel/insn.c arch/arm/kernel/insn.c: In function '__arm_gen_branch_thumb2': arch/arm/kernel/insn.c:13: error: implicit declaration of function 'WARN_ON_ONCE' Signed-off-by: Russell King diff --git a/arch/arm/kernel/insn.c b/arch/arm/kernel/insn.c index ab312e5..b760340 100644 --- a/arch/arm/kernel/insn.c +++ b/arch/arm/kernel/insn.c @@ -1,3 +1,4 @@ +#include #include #include -- cgit v0.10.2 From 3248877ea1796915419fba7c89315fdbf00cb56a Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Fri, 25 Nov 2011 15:21:02 +0000 Subject: drm: base prime/dma-buf support (v5) This adds the basic drm dma-buf interface layer, called PRIME. This commit doesn't add any driver support, it is simply and agreed upon starting point so we can work towards merging driver support for the next merge window. Current drivers with work done are nouveau, i915, udl, exynos and omap. The main APIs exposed to userspace allow translating a 32-bit object handle to a file descriptor, and a file descriptor to a 32-bit object handle. The flags value is currently limited to O_CLOEXEC. Acknowledgements: Daniel Vetter: lots of review Rob Clark: cleaned up lots of the internals and did lifetime review. v2: rename some functions after Chris preferred a green shed fix IS_ERR_OR_NULL -> IS_ERR v3: Fix Ville pointed out using buffer + kmalloc v4: add locking as per ickle review v5: allow re-exporting the original dma-buf (Daniel) Reviewed-by: Daniel Vetter Reviewed-by: Rob Clark Reviewed-by: Sumit Semwal Reviewed-by: Inki Dae Acked-by: Ben Widawsky Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index cc11488..e354bc0 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -9,6 +9,7 @@ menuconfig DRM depends on (AGP || AGP=n) && !EMULATED_CMPXCHG && MMU select I2C select I2C_ALGOBIT + select DMA_SHARED_BUFFER help Kernel-level support for the Direct Rendering Infrastructure (DRI) introduced in XFree86 4.0. If you say Y here, you need to select diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index a858532..c20da5b 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -12,7 +12,7 @@ drm-y := drm_auth.o drm_buffer.o drm_bufs.o drm_cache.o \ drm_platform.o drm_sysfs.o drm_hashtab.o drm_mm.o \ drm_crtc.o drm_modes.o drm_edid.o \ drm_info.o drm_debugfs.o drm_encoder_slave.o \ - drm_trace_points.o drm_global.o + drm_trace_points.o drm_global.o drm_prime.o drm-$(CONFIG_COMPAT) += drm_ioc32.o diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c index 0b65fbc..6116e3b 100644 --- a/drivers/gpu/drm/drm_drv.c +++ b/drivers/gpu/drm/drm_drv.c @@ -136,6 +136,10 @@ static struct drm_ioctl_desc drm_ioctls[] = { DRM_IOCTL_DEF(DRM_IOCTL_GEM_OPEN, drm_gem_open_ioctl, DRM_AUTH|DRM_UNLOCKED), DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETRESOURCES, drm_mode_getresources, DRM_CONTROL_ALLOW|DRM_UNLOCKED), + + DRM_IOCTL_DEF(DRM_IOCTL_PRIME_HANDLE_TO_FD, drm_prime_handle_to_fd_ioctl, DRM_AUTH|DRM_UNLOCKED), + DRM_IOCTL_DEF(DRM_IOCTL_PRIME_FD_TO_HANDLE, drm_prime_fd_to_handle_ioctl, DRM_AUTH|DRM_UNLOCKED), + DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANERESOURCES, drm_mode_getplane_res, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCRTC, drm_mode_getcrtc, DRM_CONTROL_ALLOW|DRM_UNLOCKED), DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETCRTC, drm_mode_setcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c index 7348a3d..cdfbf27 100644 --- a/drivers/gpu/drm/drm_fops.c +++ b/drivers/gpu/drm/drm_fops.c @@ -271,6 +271,9 @@ static int drm_open_helper(struct inode *inode, struct file *filp, if (dev->driver->driver_features & DRIVER_GEM) drm_gem_open(dev, priv); + if (drm_core_check_feature(dev, DRIVER_PRIME)) + drm_prime_init_file_private(&priv->prime); + if (dev->driver->open) { ret = dev->driver->open(dev, priv); if (ret < 0) @@ -571,6 +574,10 @@ int drm_release(struct inode *inode, struct file *filp) if (dev->driver->postclose) dev->driver->postclose(dev, file_priv); + + if (drm_core_check_feature(dev, DRIVER_PRIME)) + drm_prime_destroy_file_private(&file_priv->prime); + kfree(file_priv); /* ======================================================== diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c index 0ef358e..83114b5 100644 --- a/drivers/gpu/drm/drm_gem.c +++ b/drivers/gpu/drm/drm_gem.c @@ -35,6 +35,7 @@ #include #include #include +#include #include "drmP.h" /** @file drm_gem.c @@ -232,6 +233,10 @@ drm_gem_handle_delete(struct drm_file *filp, u32 handle) idr_remove(&filp->object_idr, handle); spin_unlock(&filp->table_lock); + if (obj->import_attach) + drm_prime_remove_imported_buf_handle(&filp->prime, + obj->import_attach->dmabuf); + if (dev->driver->gem_close_object) dev->driver->gem_close_object(obj, filp); drm_gem_object_handle_unreference_unlocked(obj); @@ -527,6 +532,10 @@ drm_gem_object_release_handle(int id, void *ptr, void *data) struct drm_gem_object *obj = ptr; struct drm_device *dev = obj->dev; + if (obj->import_attach) + drm_prime_remove_imported_buf_handle(&file_priv->prime, + obj->import_attach->dmabuf); + if (dev->driver->gem_close_object) dev->driver->gem_close_object(obj, file_priv); diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c new file mode 100644 index 0000000..1bdf2b5 --- /dev/null +++ b/drivers/gpu/drm/drm_prime.c @@ -0,0 +1,304 @@ +/* + * Copyright © 2012 Red Hat + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + * Authors: + * Dave Airlie + * Rob Clark + * + */ + +#include +#include +#include "drmP.h" + +/* + * DMA-BUF/GEM Object references and lifetime overview: + * + * On the export the dma_buf holds a reference to the exporting GEM + * object. It takes this reference in handle_to_fd_ioctl, when it + * first calls .prime_export and stores the exporting GEM object in + * the dma_buf priv. This reference is released when the dma_buf + * object goes away in the driver .release function. + * + * On the import the importing GEM object holds a reference to the + * dma_buf (which in turn holds a ref to the exporting GEM object). + * It takes that reference in the fd_to_handle ioctl. + * It calls dma_buf_get, creates an attachment to it and stores the + * attachment in the GEM object. When this attachment is destroyed + * when the imported object is destroyed, we remove the attachment + * and drop the reference to the dma_buf. + * + * Thus the chain of references always flows in one direction + * (avoiding loops): importing_gem -> dmabuf -> exporting_gem + * + * Self-importing: if userspace is using PRIME as a replacement for flink + * then it will get a fd->handle request for a GEM object that it created. + * Drivers should detect this situation and return back the gem object + * from the dma-buf private. + */ + +struct drm_prime_member { + struct list_head entry; + struct dma_buf *dma_buf; + uint32_t handle; +}; + +int drm_gem_prime_handle_to_fd(struct drm_device *dev, + struct drm_file *file_priv, uint32_t handle, uint32_t flags, + int *prime_fd) +{ + struct drm_gem_object *obj; + void *buf; + + obj = drm_gem_object_lookup(dev, file_priv, handle); + if (!obj) + return -ENOENT; + + mutex_lock(&file_priv->prime.lock); + /* re-export the original imported object */ + if (obj->import_attach) { + get_dma_buf(obj->import_attach->dmabuf); + *prime_fd = dma_buf_fd(obj->import_attach->dmabuf, flags); + drm_gem_object_unreference_unlocked(obj); + mutex_unlock(&file_priv->prime.lock); + return 0; + } + + if (obj->export_dma_buf) { + get_dma_buf(obj->export_dma_buf); + *prime_fd = dma_buf_fd(obj->export_dma_buf, flags); + drm_gem_object_unreference_unlocked(obj); + } else { + buf = dev->driver->gem_prime_export(dev, obj, flags); + if (IS_ERR(buf)) { + /* normally the created dma-buf takes ownership of the ref, + * but if that fails then drop the ref + */ + drm_gem_object_unreference_unlocked(obj); + mutex_unlock(&file_priv->prime.lock); + return PTR_ERR(buf); + } + obj->export_dma_buf = buf; + *prime_fd = dma_buf_fd(buf, flags); + } + mutex_unlock(&file_priv->prime.lock); + return 0; +} +EXPORT_SYMBOL(drm_gem_prime_handle_to_fd); + +int drm_gem_prime_fd_to_handle(struct drm_device *dev, + struct drm_file *file_priv, int prime_fd, uint32_t *handle) +{ + struct dma_buf *dma_buf; + struct drm_gem_object *obj; + int ret; + + dma_buf = dma_buf_get(prime_fd); + if (IS_ERR(dma_buf)) + return PTR_ERR(dma_buf); + + mutex_lock(&file_priv->prime.lock); + + ret = drm_prime_lookup_imported_buf_handle(&file_priv->prime, + dma_buf, handle); + if (!ret) { + ret = 0; + goto out_put; + } + + /* never seen this one, need to import */ + obj = dev->driver->gem_prime_import(dev, dma_buf); + if (IS_ERR(obj)) { + ret = PTR_ERR(obj); + goto out_put; + } + + ret = drm_gem_handle_create(file_priv, obj, handle); + drm_gem_object_unreference_unlocked(obj); + if (ret) + goto out_put; + + ret = drm_prime_add_imported_buf_handle(&file_priv->prime, + dma_buf, *handle); + if (ret) + goto fail; + + mutex_unlock(&file_priv->prime.lock); + return 0; + +fail: + /* hmm, if driver attached, we are relying on the free-object path + * to detach.. which seems ok.. + */ + drm_gem_object_handle_unreference_unlocked(obj); +out_put: + dma_buf_put(dma_buf); + mutex_unlock(&file_priv->prime.lock); + return ret; +} +EXPORT_SYMBOL(drm_gem_prime_fd_to_handle); + +int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_prime_handle *args = data; + uint32_t flags; + + if (!drm_core_check_feature(dev, DRIVER_PRIME)) + return -EINVAL; + + if (!dev->driver->prime_handle_to_fd) + return -ENOSYS; + + /* check flags are valid */ + if (args->flags & ~DRM_CLOEXEC) + return -EINVAL; + + /* we only want to pass DRM_CLOEXEC which is == O_CLOEXEC */ + flags = args->flags & DRM_CLOEXEC; + + return dev->driver->prime_handle_to_fd(dev, file_priv, + args->handle, flags, &args->fd); +} + +int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_prime_handle *args = data; + + if (!drm_core_check_feature(dev, DRIVER_PRIME)) + return -EINVAL; + + if (!dev->driver->prime_fd_to_handle) + return -ENOSYS; + + return dev->driver->prime_fd_to_handle(dev, file_priv, + args->fd, &args->handle); +} + +/* + * drm_prime_pages_to_sg + * + * this helper creates an sg table object from a set of pages + * the driver is responsible for mapping the pages into the + * importers address space + */ +struct sg_table *drm_prime_pages_to_sg(struct page **pages, int nr_pages) +{ + struct sg_table *sg = NULL; + struct scatterlist *iter; + int i; + int ret; + + sg = kmalloc(sizeof(struct sg_table), GFP_KERNEL); + if (!sg) + goto out; + + ret = sg_alloc_table(sg, nr_pages, GFP_KERNEL); + if (ret) + goto out; + + for_each_sg(sg->sgl, iter, nr_pages, i) + sg_set_page(iter, pages[i], PAGE_SIZE, 0); + + return sg; +out: + kfree(sg); + return NULL; +} +EXPORT_SYMBOL(drm_prime_pages_to_sg); + +/* helper function to cleanup a GEM/prime object */ +void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg) +{ + struct dma_buf_attachment *attach; + struct dma_buf *dma_buf; + attach = obj->import_attach; + if (sg) + dma_buf_unmap_attachment(attach, sg, DMA_BIDIRECTIONAL); + dma_buf = attach->dmabuf; + dma_buf_detach(attach->dmabuf, attach); + /* remove the reference */ + dma_buf_put(dma_buf); +} +EXPORT_SYMBOL(drm_prime_gem_destroy); + +void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv) +{ + INIT_LIST_HEAD(&prime_fpriv->head); + mutex_init(&prime_fpriv->lock); +} +EXPORT_SYMBOL(drm_prime_init_file_private); + +void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv) +{ + struct drm_prime_member *member, *safe; + list_for_each_entry_safe(member, safe, &prime_fpriv->head, entry) { + list_del(&member->entry); + kfree(member); + } +} +EXPORT_SYMBOL(drm_prime_destroy_file_private); + +int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle) +{ + struct drm_prime_member *member; + + member = kmalloc(sizeof(*member), GFP_KERNEL); + if (!member) + return -ENOMEM; + + member->dma_buf = dma_buf; + member->handle = handle; + list_add(&member->entry, &prime_fpriv->head); + return 0; +} +EXPORT_SYMBOL(drm_prime_add_imported_buf_handle); + +int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle) +{ + struct drm_prime_member *member; + + list_for_each_entry(member, &prime_fpriv->head, entry) { + if (member->dma_buf == dma_buf) { + *handle = member->handle; + return 0; + } + } + return -ENOENT; +} +EXPORT_SYMBOL(drm_prime_lookup_imported_buf_handle); + +void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf) +{ + struct drm_prime_member *member, *safe; + + mutex_lock(&prime_fpriv->lock); + list_for_each_entry_safe(member, safe, &prime_fpriv->head, entry) { + if (member->dma_buf == dma_buf) { + list_del(&member->entry); + kfree(member); + } + } + mutex_unlock(&prime_fpriv->lock); +} +EXPORT_SYMBOL(drm_prime_remove_imported_buf_handle); diff --git a/include/drm/drm.h b/include/drm/drm.h index 34a7b89..64ff02d 100644 --- a/include/drm/drm.h +++ b/include/drm/drm.h @@ -617,6 +617,17 @@ struct drm_get_cap { __u64 value; }; +#define DRM_CLOEXEC O_CLOEXEC +struct drm_prime_handle { + __u32 handle; + + /** Flags.. only applicable for handle->fd */ + __u32 flags; + + /** Returned dmabuf file descriptor */ + __s32 fd; +}; + #include "drm_mode.h" #define DRM_IOCTL_BASE 'd' @@ -673,7 +684,8 @@ struct drm_get_cap { #define DRM_IOCTL_UNLOCK DRM_IOW( 0x2b, struct drm_lock) #define DRM_IOCTL_FINISH DRM_IOW( 0x2c, struct drm_lock) -#define DRM_IOCTL_GEM_PRIME_OPEN DRM_IOWR(0x2e, struct drm_gem_open) +#define DRM_IOCTL_PRIME_HANDLE_TO_FD DRM_IOWR(0x2d, struct drm_prime_handle) +#define DRM_IOCTL_PRIME_FD_TO_HANDLE DRM_IOWR(0x2e, struct drm_prime_handle) #define DRM_IOCTL_AGP_ACQUIRE DRM_IO( 0x30) #define DRM_IOCTL_AGP_RELEASE DRM_IO( 0x31) diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 574bd1c..dd73104 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -91,6 +91,7 @@ struct drm_device; #define DRM_UT_CORE 0x01 #define DRM_UT_DRIVER 0x02 #define DRM_UT_KMS 0x04 +#define DRM_UT_PRIME 0x08 /* * Three debug levels are defined. * drm_core, drm_driver, drm_kms @@ -150,6 +151,7 @@ int drm_err(const char *func, const char *format, ...); #define DRIVER_IRQ_VBL2 0x800 #define DRIVER_GEM 0x1000 #define DRIVER_MODESET 0x2000 +#define DRIVER_PRIME 0x4000 #define DRIVER_BUS_PCI 0x1 #define DRIVER_BUS_PLATFORM 0x2 @@ -215,6 +217,11 @@ int drm_err(const char *func, const char *format, ...); drm_ut_debug_printk(DRM_UT_KMS, DRM_NAME, \ __func__, fmt, ##args); \ } while (0) +#define DRM_DEBUG_PRIME(fmt, args...) \ + do { \ + drm_ut_debug_printk(DRM_UT_PRIME, DRM_NAME, \ + __func__, fmt, ##args); \ + } while (0) #define DRM_LOG(fmt, args...) \ do { \ drm_ut_debug_printk(DRM_UT_CORE, NULL, \ @@ -238,6 +245,7 @@ int drm_err(const char *func, const char *format, ...); #else #define DRM_DEBUG_DRIVER(fmt, args...) do { } while (0) #define DRM_DEBUG_KMS(fmt, args...) do { } while (0) +#define DRM_DEBUG_PRIME(fmt, args...) do { } while (0) #define DRM_DEBUG(fmt, arg...) do { } while (0) #define DRM_LOG(fmt, arg...) do { } while (0) #define DRM_LOG_KMS(fmt, args...) do { } while (0) @@ -410,6 +418,12 @@ struct drm_pending_event { void (*destroy)(struct drm_pending_event *event); }; +/* initial implementaton using a linked list - todo hashtab */ +struct drm_prime_file_private { + struct list_head head; + struct mutex lock; +}; + /** File private data */ struct drm_file { int authenticated; @@ -437,6 +451,8 @@ struct drm_file { wait_queue_head_t event_wait; struct list_head event_list; int event_space; + + struct drm_prime_file_private prime; }; /** Wait queue */ @@ -652,6 +668,12 @@ struct drm_gem_object { uint32_t pending_write_domain; void *driver_private; + + /* dma buf exported from this GEM object */ + struct dma_buf *export_dma_buf; + + /* dma buf attachment backing this object */ + struct dma_buf_attachment *import_attach; }; #include "drm_crtc.h" @@ -890,6 +912,20 @@ struct drm_driver { int (*gem_open_object) (struct drm_gem_object *, struct drm_file *); void (*gem_close_object) (struct drm_gem_object *, struct drm_file *); + /* prime: */ + /* export handle -> fd (see drm_gem_prime_handle_to_fd() helper) */ + int (*prime_handle_to_fd)(struct drm_device *dev, struct drm_file *file_priv, + uint32_t handle, uint32_t flags, int *prime_fd); + /* import fd -> handle (see drm_gem_prime_fd_to_handle() helper) */ + int (*prime_fd_to_handle)(struct drm_device *dev, struct drm_file *file_priv, + int prime_fd, uint32_t *handle); + /* export GEM -> dmabuf */ + struct dma_buf * (*gem_prime_export)(struct drm_device *dev, + struct drm_gem_object *obj, int flags); + /* import dmabuf -> GEM */ + struct drm_gem_object * (*gem_prime_import)(struct drm_device *dev, + struct dma_buf *dma_buf); + /* vga arb irq handler */ void (*vgaarb_irq)(struct drm_device *dev, bool state); @@ -1509,6 +1545,32 @@ extern int drm_vblank_info(struct seq_file *m, void *data); extern int drm_clients_info(struct seq_file *m, void* data); extern int drm_gem_name_info(struct seq_file *m, void *data); + +extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, + struct drm_file *file_priv, uint32_t handle, uint32_t flags, + int *prime_fd); +extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, + struct drm_file *file_priv, int prime_fd, uint32_t *handle); + +extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); + +extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, int nr_pages); +extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); + + +void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv); +void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv); +int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle); +int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle); +void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf); + +int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj); +int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf, + struct drm_gem_object **obj); + #if DRM_DEBUG_CODE extern int drm_vma_info(struct seq_file *m, void *data); #endif -- cgit v0.10.2 From 5a4f5da543b169d555a19e889850780ddceb8f98 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Tue, 21 Feb 2012 12:29:03 +0100 Subject: ARM: 7337/1: ptrace: fix ptrace_read_user for !CONFIG_MMU platforms Commit 68b7f715 ("nommu: ptrace support") added definitions for PT_TEXT_ADDR and friends, as well as adding ptrace support for reading from these magic offsets. Unfortunately, this has probably never worked, since ptrace_read_user predicates reading on off < sizeof(struct user), returning -EIO otherwise. This patch moves the offset size check until after we have tried to match it against either a magic value or an offset into pt_regs. Cc: Paul Brook Signed-off-by: Will Deacon Signed-off-by: Russell King diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c index 45956c9..80abafb 100644 --- a/arch/arm/kernel/ptrace.c +++ b/arch/arm/kernel/ptrace.c @@ -256,7 +256,7 @@ static int ptrace_read_user(struct task_struct *tsk, unsigned long off, { unsigned long tmp; - if (off & 3 || off >= sizeof(struct user)) + if (off & 3) return -EIO; tmp = 0; @@ -268,6 +268,8 @@ static int ptrace_read_user(struct task_struct *tsk, unsigned long off, tmp = tsk->mm->end_code; else if (off < sizeof(struct pt_regs)) tmp = get_user_reg(tsk, off >> 2); + else if (off >= sizeof(struct user)) + return -EIO; return put_user(tmp, ret); } -- cgit v0.10.2 From 2cee5715a926ad23d3f52ffd7da3ad38f54664dd Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Fri, 30 Mar 2012 15:26:57 +0200 Subject: HID: tivo: fix support for bluetooth version of tivo Slide The device is a bluetooth device, but one occurence by mistake had marked it as USB. Reported-by: Joshua Dillon Signed-off-by: Jiri Kosina diff --git a/drivers/hid/hid-tivo.c b/drivers/hid/hid-tivo.c index de47039..9f85f82 100644 --- a/drivers/hid/hid-tivo.c +++ b/drivers/hid/hid-tivo.c @@ -62,7 +62,7 @@ static int tivo_input_mapping(struct hid_device *hdev, struct hid_input *hi, static const struct hid_device_id tivo_devices[] = { /* TiVo Slide Bluetooth remote, pairs with a Broadcom dongle */ - { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) }, + { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) }, { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) }, { } }; -- cgit v0.10.2 From aa2bf9bc6414b6972b9e51903c1ce7b1f057aee2 Mon Sep 17 00:00:00 2001 From: Sasikantha babu Date: Wed, 21 Mar 2012 20:10:54 +0530 Subject: itimer: Schedule silent NULL pointer fixup in setitimer() for removal setitimer() should return -EFAULT if called with an invalid pointer for value. The current code excludes a NULL pointer from this rule and silently uses it to stop the timer. This violates the spec. Warn about user space apps which rely on that feature and schedule it for removal. [ tglx: Massaged changelog, warn message and Doc entry ] Signed-off-by: Sasikantha babu Link: http://lkml.kernel.org/r/1332340854-26053-1-git-send-email-sasikanth.v19@gmail.com Signed-off-by: Thomas Gleixner diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 0cad480..32fae81 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -529,3 +529,11 @@ When: 3.5 Why: The old kmap_atomic() with two arguments is deprecated, we only keep it for backward compatibility for few cycles and then drop it. Who: Cong Wang + +---------------------------- + +What: setitimer accepts user NULL pointer (value) +When: 3.6 +Why: setitimer is not returning -EFAULT if user pointer is NULL. This + violates the spec. +Who: Sasikantha Babu diff --git a/kernel/itimer.c b/kernel/itimer.c index 22000c3..c70369a 100644 --- a/kernel/itimer.c +++ b/kernel/itimer.c @@ -284,8 +284,11 @@ SYSCALL_DEFINE3(setitimer, int, which, struct itimerval __user *, value, if (value) { if(copy_from_user(&set_buffer, value, sizeof(set_buffer))) return -EFAULT; - } else + } else { memset((char *) &set_buffer, 0, sizeof(set_buffer)); + WARN_ONCE(1, "setitimer: new_value pointer is NULL." + " Misfeature support will be removed\n"); + } error = do_setitimer(which, &set_buffer, ovalue ? &get_buffer : NULL); if (error || !ovalue) -- cgit v0.10.2 From cb85a6ed67e979c59a29b7b4e8217e755b951cf4 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Fri, 30 Mar 2012 12:23:08 +0200 Subject: proc: stats: Use arch_idle_time for idle and iowait times if available Git commit a25cac5198d4ff28 "proc: Consider NO_HZ when printing idle and iowait times" changes the code for /proc/stat to use get_cpu_idle_time_us and get_cpu_iowait_time_us if the system is running with nohz enabled. For architectures which define arch_idle_time (currently s390 only) this is a change for the worse. The result of arch_idle_time is supposed to be the exact sleep time of the target cpu and should be used instead of the value kept by the scheduler. Signed-off-by: Martin Schwidefsky Reviewed-by: Michal Hocko Reviewed-by: Srivatsa S. Bhat Link: http://lkml.kernel.org/r/20120330122308.18720283@de.ibm.com Signed-off-by: Thomas Gleixner diff --git a/fs/proc/stat.c b/fs/proc/stat.c index 6a0c62d..64c3b31 100644 --- a/fs/proc/stat.c +++ b/fs/proc/stat.c @@ -18,19 +18,39 @@ #ifndef arch_irq_stat #define arch_irq_stat() 0 #endif -#ifndef arch_idle_time -#define arch_idle_time(cpu) 0 -#endif + +#ifdef arch_idle_time + +static cputime64_t get_idle_time(int cpu) +{ + cputime64_t idle; + + idle = kcpustat_cpu(cpu).cpustat[CPUTIME_IDLE]; + if (cpu_online(cpu) && !nr_iowait_cpu(cpu)) + idle += arch_idle_time(cpu); + return idle; +} + +static cputime64_t get_iowait_time(int cpu) +{ + cputime64_t iowait; + + iowait = kcpustat_cpu(cpu).cpustat[CPUTIME_IOWAIT]; + if (cpu_online(cpu) && nr_iowait_cpu(cpu)) + iowait += arch_idle_time(cpu); + return iowait; +} + +#else static u64 get_idle_time(int cpu) { u64 idle, idle_time = get_cpu_idle_time_us(cpu, NULL); - if (idle_time == -1ULL) { + if (idle_time == -1ULL) /* !NO_HZ so we can rely on cpustat.idle */ idle = kcpustat_cpu(cpu).cpustat[CPUTIME_IDLE]; - idle += arch_idle_time(cpu); - } else + else idle = usecs_to_cputime64(idle_time); return idle; @@ -49,6 +69,8 @@ static u64 get_iowait_time(int cpu) return iowait; } +#endif + static int show_stat(struct seq_file *p, void *v) { int i, j; -- cgit v0.10.2 From 92fd918c2416404c2ec09829b25243b9a785dc9b Mon Sep 17 00:00:00 2001 From: Eliot Blennerhassett Date: Fri, 30 Mar 2012 09:52:25 +1300 Subject: ALSA: asihpi - fix return value of hpios_locked_mem_alloc() Make this function consistent with others in this module by returning 1 for error, instead of -ENOMEM (reverts function signature change from a938fb1e) Signed-off-by: Eliot Blennerhassett Signed-off-by: Takashi Iwai diff --git a/sound/pci/asihpi/hpi_internal.h b/sound/pci/asihpi/hpi_internal.h index 8c63200..bc86cb7 100644 --- a/sound/pci/asihpi/hpi_internal.h +++ b/sound/pci/asihpi/hpi_internal.h @@ -1,7 +1,7 @@ /****************************************************************************** AudioScience HPI driver - Copyright (C) 1997-2011 AudioScience Inc. + Copyright (C) 1997-2012 AudioScience Inc. This program is free software; you can redistribute it and/or modify it under the terms of version 2 of the GNU General Public License as @@ -42,7 +42,7 @@ On error *pLockedMemHandle marked invalid, non-zero returned. If this function succeeds, then HpiOs_LockedMem_GetVirtAddr() and HpiOs_LockedMem_GetPyhsAddr() will always succed on the returned handle. */ -int hpios_locked_mem_alloc(struct consistent_dma_area *p_locked_mem_handle, +u16 hpios_locked_mem_alloc(struct consistent_dma_area *p_locked_mem_handle, /**< memory handle */ u32 size, /**< Size in bytes to allocate */ struct pci_dev *p_os_reference diff --git a/sound/pci/asihpi/hpios.c b/sound/pci/asihpi/hpios.c index 87f4385..5ef4fe9 100644 --- a/sound/pci/asihpi/hpios.c +++ b/sound/pci/asihpi/hpios.c @@ -1,7 +1,7 @@ /****************************************************************************** AudioScience HPI driver - Copyright (C) 1997-2011 AudioScience Inc. + Copyright (C) 1997-2012 AudioScience Inc. This program is free software; you can redistribute it and/or modify it under the terms of version 2 of the GNU General Public License as @@ -39,11 +39,11 @@ void hpios_delay_micro_seconds(u32 num_micro_sec) } -/** Allocated an area of locked memory for bus master DMA operations. +/** Allocate an area of locked memory for bus master DMA operations. -On error, return -ENOMEM, and *pMemArea.size = 0 +If allocation fails, return 1, and *pMemArea.size = 0 */ -int hpios_locked_mem_alloc(struct consistent_dma_area *p_mem_area, u32 size, +u16 hpios_locked_mem_alloc(struct consistent_dma_area *p_mem_area, u32 size, struct pci_dev *pdev) { /*?? any benefit in using managed dmam_alloc_coherent? */ @@ -62,7 +62,7 @@ int hpios_locked_mem_alloc(struct consistent_dma_area *p_mem_area, u32 size, HPI_DEBUG_LOG(WARNING, "failed to allocate %d bytes locked memory\n", size); p_mem_area->size = 0; - return -ENOMEM; + return 1; } } -- cgit v0.10.2 From c0e9afc0da6cb0f11497e5ea83377b3c451450e0 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 28 Mar 2012 11:51:17 -0700 Subject: x86: Use -mno-avx when available On gccs that support AVX it's a good idea to disable that too, similar to how SSE2, SSE1 etc. are already disabled. This prevents the compiler from generating AVX ever implicitely. No failure observed, just from review. [ hpa: Marking this for urgent and stable, simply because the patch will either have absolutely no effect *or* it will avoid potentially very hard to debug failures. ] Signed-off-by: Andi Kleen Link: http://lkml.kernel.org/r/1332960678-11879-1-git-send-email-andi@firstfloor.org Signed-off-by: H. Peter Anvin Cc: diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 968dbe24a..41a7237 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -129,6 +129,7 @@ KBUILD_CFLAGS += -Wno-sign-compare KBUILD_CFLAGS += -fno-asynchronous-unwind-tables # prevent gcc from generating any FP code by mistake KBUILD_CFLAGS += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,) +KBUILD_CFLAGS += $(call cc-option,-mno-avx,) KBUILD_CFLAGS += $(mflags-y) KBUILD_AFLAGS += $(mflags-y) -- cgit v0.10.2 From 3eb8d7099064ae61fa821d690d085abb8b7c4810 Mon Sep 17 00:00:00 2001 From: Russell King Date: Fri, 30 Mar 2012 21:03:54 +0100 Subject: ARM: fix bios32.c build warning arch/arm/kernel/bios32.c: In function 'pcibios_fixup_bus': arch/arm/kernel/bios32.c:302: warning: unused variable 'root' caused by 9f786d033 (arm/PCI: get rid of device resource fixups) Signed-off-by: Russell King diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c index 632df9a..ede5f77 100644 --- a/arch/arm/kernel/bios32.c +++ b/arch/arm/kernel/bios32.c @@ -299,7 +299,6 @@ static inline int pdev_bad_for_parity(struct pci_dev *dev) */ void pcibios_fixup_bus(struct pci_bus *bus) { - struct pci_sys_data *root = bus->sysdata; struct pci_dev *dev; u16 features = PCI_COMMAND_SERR | PCI_COMMAND_PARITY | PCI_COMMAND_FAST_BACK; -- cgit v0.10.2 From 327ef2e9048a5e39bf84d7f17f78a87e7a068742 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 23 Mar 2012 13:05:48 +0530 Subject: spi/pL022: include types.h to remove compilation warnings linux/pl022.h uses definitions like, u8, u16, etc, which have dependency of types.h file, which isn't included in it. So, we get compilation warnings. This patch includes types.h there to fix these warnings. Signed-off-by: Viresh Kumar Acked-by: Linus Walleij Signed-off-by: Grant Likely diff --git a/include/linux/amba/pl022.h b/include/linux/amba/pl022.h index b8c5112..76dd1b1 100644 --- a/include/linux/amba/pl022.h +++ b/include/linux/amba/pl022.h @@ -25,6 +25,8 @@ #ifndef _SSP_PL022_H #define _SSP_PL022_H +#include + /** * whether SSP is in loopback mode or not */ -- cgit v0.10.2 From 9232b9b1b57dc5c01f435433e70e26c122bf4e44 Mon Sep 17 00:00:00 2001 From: Shubhrajyoti D Date: Tue, 20 Mar 2012 16:10:09 +0530 Subject: spi/davinci: Fix DMA API usage in davinci The driver uses NULL for dma_unmap_single instead of the struct device that the API expects. Signed-off-by: Shubhrajyoti D Tested-by: Akshay Shankarmurthy Signed-off-by: Grant Likely diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c index 31bfba8..9b2901f 100644 --- a/drivers/spi/spi-davinci.c +++ b/drivers/spi/spi-davinci.c @@ -653,7 +653,7 @@ static int davinci_spi_bufs(struct spi_device *spi, struct spi_transfer *t) dev_dbg(sdev, "Couldn't DMA map a %d bytes RX buffer\n", rx_buf_count); if (t->tx_buf) - dma_unmap_single(NULL, t->tx_dma, t->len, + dma_unmap_single(&spi->dev, t->tx_dma, t->len, DMA_TO_DEVICE); return -ENOMEM; } @@ -692,10 +692,10 @@ static int davinci_spi_bufs(struct spi_device *spi, struct spi_transfer *t) if (spicfg->io_type == SPI_IO_TYPE_DMA) { if (t->tx_buf) - dma_unmap_single(NULL, t->tx_dma, t->len, + dma_unmap_single(&spi->dev, t->tx_dma, t->len, DMA_TO_DEVICE); - dma_unmap_single(NULL, t->rx_dma, rx_buf_count, + dma_unmap_single(&spi->dev, t->rx_dma, rx_buf_count, DMA_FROM_DEVICE); clear_io_bits(dspi->base + SPIINT, SPIINT_DMA_REQ_EN); -- cgit v0.10.2 From 5039a86973cd35bdb2f64d28ee12f13fe2bb5a4c Mon Sep 17 00:00:00 2001 From: Kenth Eriksson Date: Fri, 30 Mar 2012 17:05:30 +0200 Subject: spi/mpc83xx: fix NULL pdata dereference bug Commit 178db7d3, "spi: Fix device unregistration when unregistering the bus master", changed device initialization to be children of the bus master, not children of the bus masters parent device. The pdata pointer used in fsl_spi_chipselect must updated to reflect the changed initialization. Signed-off-by: Kenth Eriksson Acked-by: Joakim Tjernlund Signed-off-by: Grant Likely diff --git a/drivers/spi/spi-fsl-spi.c b/drivers/spi/spi-fsl-spi.c index 24cacff..5f748c0 100644 --- a/drivers/spi/spi-fsl-spi.c +++ b/drivers/spi/spi-fsl-spi.c @@ -139,10 +139,12 @@ static void fsl_spi_change_mode(struct spi_device *spi) static void fsl_spi_chipselect(struct spi_device *spi, int value) { struct mpc8xxx_spi *mpc8xxx_spi = spi_master_get_devdata(spi->master); - struct fsl_spi_platform_data *pdata = spi->dev.parent->platform_data; + struct fsl_spi_platform_data *pdata; bool pol = spi->mode & SPI_CS_HIGH; struct spi_mpc8xxx_cs *cs = spi->controller_state; + pdata = spi->dev.parent->parent->platform_data; + if (value == BITBANG_CS_INACTIVE) { if (pdata->cs_control) pdata->cs_control(spi, !pol); -- cgit v0.10.2 From cc4d22ae541ccd989ef163c46a38afde131e1644 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Thu, 29 Mar 2012 21:54:18 +0200 Subject: spi/imx: mark base member in spi_imx_data as __iomem MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This fixes 36 sparse warnings like: drivers/spi/spi-imx.c:143:1: warning: incorrect type in argument 1 (different address spaces) drivers/spi/spi-imx.c:143:1: expected void const volatile [noderef] * drivers/spi/spi-imx.c:143:1: got void * Signed-off-by: Uwe Kleine-König Signed-off-by: Grant Likely diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index 31054e3..373f4ff 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -83,7 +83,7 @@ struct spi_imx_data { struct spi_bitbang bitbang; struct completion xfer_done; - void *base; + void __iomem *base; int irq; struct clk *clk; unsigned long spi_clk; -- cgit v0.10.2 From 6d008893e45ad5957a9a31afa00c4c6582504fe5 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 31 Mar 2012 09:07:30 +0100 Subject: ARM: fix more fallout from 9f97da78bf (Disintegrate asm/system.h for ARM) arch/arm/kernel/io.c: In function '_memcpy_toio': arch/arm/kernel/io.c:29: error: implicit declaration of function 'outer_sync' arch/arm/mach-omap2/omap_l3_noc.c: In function 'l3_interrupt_handler': arch/arm/mach-omap2/omap_l3_noc.c:100: error: implicit declaration of function 'outer_sync' kernel/irq/generic-chip.c: In function 'irq_gc_mask_disable_reg': kernel/irq/generic-chip.c:45: error: implicit declaration of function 'outer_sync' kernel/sched/rt.c: In function 'rt_set_overload': kernel/sched/rt.c:248: error: implicit declaration of function 'outer_sync' ... Signed-off-by: Russell King diff --git a/arch/arm/mach-omap2/include/mach/barriers.h b/arch/arm/mach-omap2/include/mach/barriers.h index 4fa72c7..1c582a8 100644 --- a/arch/arm/mach-omap2/include/mach/barriers.h +++ b/arch/arm/mach-omap2/include/mach/barriers.h @@ -22,6 +22,8 @@ #ifndef __MACH_BARRIERS_H #define __MACH_BARRIERS_H +#include + extern void omap_bus_sync(void); #define rmb() dsb() -- cgit v0.10.2 From 6308191f6f55d3629c7dbe72dfb856ad9fa560fd Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Fri, 30 Mar 2012 18:26:36 +0200 Subject: tracing, sched, vfs: Fix 'old_pid' usage in trace_sched_process_exec() 1. TRACE_EVENT(sched_process_exec) forgets to actually use the old pid argument, it sets ->old_pid = p->pid. 2. search_binary_handler() uses the wrong pid number. tracepoint needs the global pid_t from the root namespace, while old_pid is the virtual pid number as it seen by the tracer/parent. With this patch we have two pid_t's in search_binary_handler(), not really nice. Perhaps we should switch to "struct pid*", but in this case it would be better to cleanup the current code first and move the "depth == 0" code outside. Signed-off-by: Oleg Nesterov Cc: David Smith Cc: Peter Zijlstra Cc: Steven Rostedt Cc: Denys Vlasenko Link: http://lkml.kernel.org/r/20120330162636.GA4857@redhat.com Signed-off-by: Ingo Molnar diff --git a/fs/exec.c b/fs/exec.c index 23559c2..644f6c4 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1370,7 +1370,7 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs) unsigned int depth = bprm->recursion_depth; int try,retval; struct linux_binfmt *fmt; - pid_t old_pid; + pid_t old_pid, old_vpid; retval = security_bprm_check(bprm); if (retval) @@ -1381,8 +1381,9 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs) return retval; /* Need to fetch pid before load_binary changes it */ + old_pid = current->pid; rcu_read_lock(); - old_pid = task_pid_nr_ns(current, task_active_pid_ns(current->parent)); + old_vpid = task_pid_nr_ns(current, task_active_pid_ns(current->parent)); rcu_read_unlock(); retval = -ENOENT; @@ -1405,7 +1406,7 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs) if (retval >= 0) { if (depth == 0) { trace_sched_process_exec(current, old_pid, bprm); - ptrace_event(PTRACE_EVENT_EXEC, old_pid); + ptrace_event(PTRACE_EVENT_EXEC, old_vpid); } put_binfmt(fmt); allow_write_access(bprm->file); diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h index fbc7b1a..ea7a203 100644 --- a/include/trace/events/sched.h +++ b/include/trace/events/sched.h @@ -295,7 +295,7 @@ TRACE_EVENT(sched_process_exec, TP_fast_assign( __assign_str(filename, bprm->filename); __entry->pid = p->pid; - __entry->old_pid = p->pid; + __entry->old_pid = old_pid; ), TP_printk("filename=%s pid=%d old_pid=%d", __get_str(filename), -- cgit v0.10.2 From 5f12760d289fd2da685cb54eebb08c107b146872 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Sat, 31 Mar 2012 16:33:31 +0800 Subject: regulator: fix sysfs name collision between dummy and fixed dummy regulator When regulator_register_fixed() is being used to register fixed dummy regulator, the following line will be seen in the boot log. And the sysfs entry for fixed dummy regulator is not shown. dummy: Failed to create debugfs directory The patch renames the fixed dummy supply to "fixed-dummy" to avoid the name collision with dummy regulator. Signed-off-by: Shawn Guo Signed-off-by: Mark Brown diff --git a/drivers/regulator/fixed-helper.c b/drivers/regulator/fixed-helper.c index 30d0a15..efb52dc 100644 --- a/drivers/regulator/fixed-helper.c +++ b/drivers/regulator/fixed-helper.c @@ -32,7 +32,7 @@ struct platform_device *regulator_register_fixed(int id, if (!data) return NULL; - data->cfg.supply_name = "dummy"; + data->cfg.supply_name = "fixed-dummy"; data->cfg.microvolts = 0; data->cfg.gpio = -EINVAL; data->cfg.enabled_at_boot = 1; -- cgit v0.10.2 From 546e78452a3f81eb45ae5c671c71db05389d42c8 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 19 Mar 2012 12:22:10 +0800 Subject: regulator: Fix setting new voltage in s5m8767_set_voltage Current code does not really update the register with new value, fix it. I rename the variable i to sel for better readability. Signed-off-by: Axel Lin Acked-by: Sangbeom Kim Signed-off-by: Mark Brown diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c index 58447db..4ca2db0 100644 --- a/drivers/regulator/s5m8767.c +++ b/drivers/regulator/s5m8767.c @@ -311,8 +311,7 @@ static int s5m8767_set_voltage(struct regulator_dev *rdev, struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev); const struct s5m_voltage_desc *desc; int reg_id = rdev_get_id(rdev); - int reg, mask, ret; - int i; + int sel, reg, mask, ret; u8 val; switch (reg_id) { @@ -333,19 +332,20 @@ static int s5m8767_set_voltage(struct regulator_dev *rdev, desc = reg_voltage_map[reg_id]; - i = s5m8767_convert_voltage_to_sel(desc, min_uV, max_uV); - if (i < 0) - return i; + sel = s5m8767_convert_voltage_to_sel(desc, min_uV, max_uV); + if (sel < 0) + return sel; ret = s5m8767_get_voltage_register(rdev, ®); if (ret) return ret; s5m_reg_read(s5m8767->iodev, reg, &val); - val = val & mask; + val &= ~mask; + val |= sel; ret = s5m_reg_write(s5m8767->iodev, reg, val); - *selector = i; + *selector = sel; return ret; } -- cgit v0.10.2 From 3872c48b14259d8c0a00c9fff06a4a4123f7f4eb Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 31 Mar 2012 12:45:43 +0200 Subject: tick: Document TICK_ONESHOT config option This option has been selected from arch code as it was assumed that it's necessary to support oneshot mode clockevent devices. But it's just a core internal helper to compile tick-oneshot.c if NOHZ or HIG_RES_TIMERS are selected. Reported-by: Russell King Signed-off-by: Thomas Gleixner diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig index 2cf9cc7..a20dc8a 100644 --- a/kernel/time/Kconfig +++ b/kernel/time/Kconfig @@ -1,6 +1,10 @@ # # Timer subsystem related configuration options # + +# Core internal switch. Selected by NO_HZ / HIGH_RES_TIMERS. This is +# only related to the tick functionality. Oneshot clockevent devices +# are supported independ of this. config TICK_ONESHOT bool -- cgit v0.10.2 From d49fe3c4cd22965de7422dd81d46110fc3d4deef Mon Sep 17 00:00:00 2001 From: Russ Dill Date: Wed, 21 Mar 2012 22:19:45 -0700 Subject: regulator: Remove non-existent parameter from fixed-helper.c kernel doc Signed-off-by: Russ Dill Signed-off-by: Mark Brown diff --git a/drivers/regulator/fixed-helper.c b/drivers/regulator/fixed-helper.c index efb52dc..cacd33c 100644 --- a/drivers/regulator/fixed-helper.c +++ b/drivers/regulator/fixed-helper.c @@ -18,7 +18,6 @@ static void regulator_fixed_release(struct device *dev) /** * regulator_register_fixed - register a no-op fixed regulator - * @name: supply name * @id: platform device id * @supplies: consumers for this regulator * @num_supplies: number of consumers -- cgit v0.10.2 From b5efb978469d152c2c7c0a09746fb0bfc6171868 Mon Sep 17 00:00:00 2001 From: Pavel Shilovsky Date: Tue, 27 Mar 2012 15:36:15 +0400 Subject: CIFS: Fix VFS lock usage for oplocked files We can deadlock if we have a write oplock and two processes use the same file handle. In this case the first process can't unlock its lock if another process blocked on the lock in the same time. Fix this by removing lock_mutex protection from waiting on a blocked lock and protect only posix_lock_file call. Cc: stable@kernel.org Signed-off-by: Pavel Shilovsky Acked-by: Jeff Layton Signed-off-by: Steve French diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 460d87b..0a11dbb 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -671,6 +671,21 @@ cifs_del_lock_waiters(struct cifsLockInfo *lock) } } +/* + * Copied from fs/locks.c with small changes. + * Remove waiter from blocker's block list. + * When blocker ends up pointing to itself then the list is empty. + */ +static void +cifs_locks_delete_block(struct file_lock *waiter) +{ + lock_flocks(); + list_del_init(&waiter->fl_block); + list_del_init(&waiter->fl_link); + waiter->fl_next = NULL; + unlock_flocks(); +} + static bool __cifs_find_lock_conflict(struct cifsInodeInfo *cinode, __u64 offset, __u64 length, __u8 type, __u16 netfid, @@ -820,6 +835,39 @@ cifs_posix_lock_test(struct file *file, struct file_lock *flock) return rc; } +/* Called with locked lock_mutex, return with unlocked. */ +static int +cifs_posix_lock_file_wait_locked(struct file *file, struct file_lock *flock) +{ + struct cifsInodeInfo *cinode = CIFS_I(file->f_path.dentry->d_inode); + int rc; + + while (true) { + rc = posix_lock_file(file, flock, NULL); + mutex_unlock(&cinode->lock_mutex); + if (rc != FILE_LOCK_DEFERRED) + break; + rc = wait_event_interruptible(flock->fl_wait, !flock->fl_next); + if (!rc) { + mutex_lock(&cinode->lock_mutex); + continue; + } + cifs_locks_delete_block(flock); + break; + } + return rc; +} + +static int +cifs_posix_lock_file_wait(struct file *file, struct file_lock *flock) +{ + struct cifsInodeInfo *cinode = CIFS_I(file->f_path.dentry->d_inode); + + mutex_lock(&cinode->lock_mutex); + /* lock_mutex will be released by the function below */ + return cifs_posix_lock_file_wait_locked(file, flock); +} + /* * Set the byte-range lock (posix style). Returns: * 1) 0, if we set the lock and don't need to request to the server; @@ -840,9 +888,9 @@ cifs_posix_lock_set(struct file *file, struct file_lock *flock) mutex_unlock(&cinode->lock_mutex); return rc; } - rc = posix_lock_file_wait(file, flock); - mutex_unlock(&cinode->lock_mutex); - return rc; + + /* lock_mutex will be released by the function below */ + return cifs_posix_lock_file_wait_locked(file, flock); } static int @@ -1338,7 +1386,7 @@ cifs_setlk(struct file *file, struct file_lock *flock, __u8 type, out: if (flock->fl_flags & FL_POSIX) - posix_lock_file_wait(file, flock); + cifs_posix_lock_file_wait(file, flock); return rc; } -- cgit v0.10.2 From b2a3ad9ca502169fc4c11296fa20f56059c7c031 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Mon, 26 Mar 2012 09:55:29 -0400 Subject: cifs: silence compiler warnings showing up with gcc-4.7.0 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit gcc-4.7.0 has started throwing these warnings when building cifs.ko. CC [M] fs/cifs/cifssmb.o fs/cifs/cifssmb.c: In function ‘CIFSSMBSetCIFSACL’: fs/cifs/cifssmb.c:3905:9: warning: array subscript is above array bounds [-Warray-bounds] fs/cifs/cifssmb.c: In function ‘CIFSSMBSetFileInfo’: fs/cifs/cifssmb.c:5711:8: warning: array subscript is above array bounds [-Warray-bounds] fs/cifs/cifssmb.c: In function ‘CIFSSMBUnixSetFileInfo’: fs/cifs/cifssmb.c:6001:25: warning: array subscript is above array bounds [-Warray-bounds] This patch cleans up the code a bit by using the offsetof macro instead of the funky "&pSMB->hdr.Protocol" construct. Signed-off-by: Jeff Layton Signed-off-by: Steve French diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 8fecc99..f52c5ab 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -3892,13 +3892,12 @@ CIFSSMBSetCIFSACL(const int xid, struct cifs_tcon *tcon, __u16 fid, int rc = 0; int bytes_returned = 0; SET_SEC_DESC_REQ *pSMB = NULL; - NTRANSACT_RSP *pSMBr = NULL; + void *pSMBr; setCifsAclRetry: - rc = smb_init(SMB_COM_NT_TRANSACT, 19, tcon, (void **) &pSMB, - (void **) &pSMBr); + rc = smb_init(SMB_COM_NT_TRANSACT, 19, tcon, (void **) &pSMB, &pSMBr); if (rc) - return (rc); + return rc; pSMB->MaxSetupCount = 0; pSMB->Reserved = 0; @@ -3926,9 +3925,8 @@ setCifsAclRetry: pSMB->AclFlags = cpu_to_le32(aclflag); if (pntsd && acllen) { - memcpy((char *) &pSMBr->hdr.Protocol + data_offset, - (char *) pntsd, - acllen); + memcpy((char *)pSMBr + offsetof(struct smb_hdr, Protocol) + + data_offset, pntsd, acllen); inc_rfc1001_len(pSMB, byte_count + data_count); } else inc_rfc1001_len(pSMB, byte_count); @@ -5708,7 +5706,8 @@ CIFSSMBSetFileInfo(const int xid, struct cifs_tcon *tcon, param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; offset = param_offset + params; - data_offset = (char *) (&pSMB->hdr.Protocol) + offset; + data_offset = (char *)pSMB + + offsetof(struct smb_hdr, Protocol) + offset; count = sizeof(FILE_BASIC_INFO); pSMB->MaxParameterCount = cpu_to_le16(2); @@ -5977,7 +5976,7 @@ CIFSSMBUnixSetFileInfo(const int xid, struct cifs_tcon *tcon, u16 fid, u32 pid_of_opener) { struct smb_com_transaction2_sfi_req *pSMB = NULL; - FILE_UNIX_BASIC_INFO *data_offset; + char *data_offset; int rc = 0; u16 params, param_offset, offset, byte_count, count; @@ -5999,8 +5998,9 @@ CIFSSMBUnixSetFileInfo(const int xid, struct cifs_tcon *tcon, param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; offset = param_offset + params; - data_offset = (FILE_UNIX_BASIC_INFO *) - ((char *)(&pSMB->hdr.Protocol) + offset); + data_offset = (char *)pSMB + + offsetof(struct smb_hdr, Protocol) + offset; + count = sizeof(FILE_UNIX_BASIC_INFO); pSMB->MaxParameterCount = cpu_to_le16(2); @@ -6022,7 +6022,7 @@ CIFSSMBUnixSetFileInfo(const int xid, struct cifs_tcon *tcon, inc_rfc1001_len(pSMB, byte_count); pSMB->ByteCount = cpu_to_le16(byte_count); - cifs_fill_unix_set_info(data_offset, args); + cifs_fill_unix_set_info((FILE_UNIX_BASIC_INFO *)data_offset, args); rc = SendReceiveNoRsp(xid, tcon->ses, (char *) pSMB, 0); if (rc) -- cgit v0.10.2 From 2545e0720a5a4bf8ebccc6f793f97a246cf3f18d Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 1 Mar 2012 10:06:52 +0300 Subject: cifs: writing past end of struct in cifs_convert_address() "s6->sin6_scope_id" is an int bits but strict_strtoul() writes a long so this can corrupt memory on 64 bit systems. Signed-off-by: Dan Carpenter Reviewed-by: Jeff Layton Signed-off-by: Steve French diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c index dd23a32..581c225 100644 --- a/fs/cifs/netmisc.c +++ b/fs/cifs/netmisc.c @@ -197,8 +197,7 @@ cifs_convert_address(struct sockaddr *dst, const char *src, int len) memcpy(scope_id, pct + 1, slen); scope_id[slen] = '\0'; - rc = strict_strtoul(scope_id, 0, - (unsigned long *)&s6->sin6_scope_id); + rc = kstrtouint(scope_id, 0, &s6->sin6_scope_id); rc = (rc == 0) ? 1 : 0; } -- cgit v0.10.2 From f47166d2b0001fcb752b40c5a2d4db986dfbea68 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Thu, 22 Mar 2012 15:00:50 +0000 Subject: drm/i915: Sanitize BIOS debugging bits from PIPECONF Quoting the BSpec from time immemorial: PIPEACONF, bits 28:27: Frame Start Delay (Debug) Used to delay the frame start signal that is sent to the display planes. Care must be taken to insure that there are enough lines during VBLANK to support this setting. An instance of the BIOS leaving these bits set was found in the wild, where it caused our modesetting to go all squiffy and skewiff. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=47271 Reported-and-tested-by: Eva Wang Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43012 Reported-and-tested-by: Carl Richell Cc: stable@kernel.org Signed-off-by: Chris Wilson Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 3886cf0..2abf4eb 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -2385,6 +2385,7 @@ #define PIPECONF_DISABLE 0 #define PIPECONF_DOUBLE_WIDE (1<<30) #define I965_PIPECONF_ACTIVE (1<<30) +#define PIPECONF_FRAME_START_DELAY_MASK (3<<27) #define PIPECONF_SINGLE_WIDE 0 #define PIPECONF_PIPE_UNLOCKED 0 #define PIPECONF_PIPE_LOCKED (1<<25) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index d514719..0784773 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -7580,6 +7580,12 @@ static void intel_sanitize_modesetting(struct drm_device *dev, struct drm_i915_private *dev_priv = dev->dev_private; u32 reg, val; + /* Clear any frame start delays used for debugging left by the BIOS */ + for_each_pipe(pipe) { + reg = PIPECONF(pipe); + I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK); + } + if (HAS_PCH_SPLIT(dev)) return; -- cgit v0.10.2 From 55a254ac63a3ac1867d1501030e7fba69c7d4aeb Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Thu, 22 Mar 2012 00:14:43 +0100 Subject: drm/i915: properly restore the ppgtt page directory on resume The ppgtt page directory lives in a snatched part of the gtt pte range. Which naturally gets cleared on hibernate when we pull the power. Suspend to ram (which is what I've tested) works because despite the fact that this is a mmio region, it is actually back by system ram. Fix this by moving the page directory setup code to the ppgtt init code (which gets called on resume). This fixes hibernate on my ivb and snb. Reviewed-by: Ben Widawsky Signed-Off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 1f441f5..97e6599 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -3754,12 +3754,32 @@ void i915_gem_init_ppgtt(struct drm_device *dev) drm_i915_private_t *dev_priv = dev->dev_private; uint32_t pd_offset; struct intel_ring_buffer *ring; + struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt; + uint32_t __iomem *pd_addr; + uint32_t pd_entry; int i; if (!dev_priv->mm.aliasing_ppgtt) return; - pd_offset = dev_priv->mm.aliasing_ppgtt->pd_offset; + + pd_addr = dev_priv->mm.gtt->gtt + ppgtt->pd_offset/sizeof(uint32_t); + for (i = 0; i < ppgtt->num_pd_entries; i++) { + dma_addr_t pt_addr; + + if (dev_priv->mm.gtt->needs_dmar) + pt_addr = ppgtt->pt_dma_addr[i]; + else + pt_addr = page_to_phys(ppgtt->pt_pages[i]); + + pd_entry = GEN6_PDE_ADDR_ENCODE(pt_addr); + pd_entry |= GEN6_PDE_VALID; + + writel(pd_entry, pd_addr + i); + } + readl(pd_addr); + + pd_offset = ppgtt->pd_offset; pd_offset /= 64; /* in cachelines, */ pd_offset <<= 16; diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 2eacd78..a135c61 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -65,9 +65,7 @@ int i915_gem_init_aliasing_ppgtt(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; struct i915_hw_ppgtt *ppgtt; - uint32_t pd_entry; unsigned first_pd_entry_in_global_pt; - uint32_t __iomem *pd_addr; int i; int ret = -ENOMEM; @@ -100,7 +98,6 @@ int i915_gem_init_aliasing_ppgtt(struct drm_device *dev) goto err_pt_alloc; } - pd_addr = dev_priv->mm.gtt->gtt + first_pd_entry_in_global_pt; for (i = 0; i < ppgtt->num_pd_entries; i++) { dma_addr_t pt_addr; if (dev_priv->mm.gtt->needs_dmar) { @@ -117,13 +114,7 @@ int i915_gem_init_aliasing_ppgtt(struct drm_device *dev) ppgtt->pt_dma_addr[i] = pt_addr; } else pt_addr = page_to_phys(ppgtt->pt_pages[i]); - - pd_entry = GEN6_PDE_ADDR_ENCODE(pt_addr); - pd_entry |= GEN6_PDE_VALID; - - writel(pd_entry, pd_addr + i); } - readl(pd_addr); ppgtt->scratch_page_dma_addr = dev_priv->mm.gtt->scratch_page_dma; -- cgit v0.10.2 From 7dd4906586274f3945f2aeaaa5a33b451c3b4bba Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Wed, 21 Mar 2012 10:48:18 +0000 Subject: drm/i915: Mark untiled BLT commands as fenced on gen2/3 The BLT commands on gen2/3 utilize the fence registers and so we cannot modify any fences for the object whilst those commands are in flight. Currently we marked tiled commands as occupying a fence, but forgot to restrict the untiled commands from preventing a fence being assigned before they were completed. One side-effect is that we ten have to double check that a fence was allocated for a fenced buffer during move-to-active. Reported-by: Jiri Slaby Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=43427 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=47990 Reviewed-by: Daniel Vetter Testcase: i-g-t/tests/gem_tiled_after_untiled_blt Tested-by: Daniel Vetter Signed-off-by: Chris Wilson Cc: stable@kernel.org Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 97e6599..4c65c63 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1472,16 +1472,19 @@ i915_gem_object_move_to_active(struct drm_i915_gem_object *obj, list_move_tail(&obj->ring_list, &ring->active_list); obj->last_rendering_seqno = seqno; - if (obj->fenced_gpu_access) { - struct drm_i915_fence_reg *reg; - - BUG_ON(obj->fence_reg == I915_FENCE_REG_NONE); + if (obj->fenced_gpu_access) { obj->last_fenced_seqno = seqno; obj->last_fenced_ring = ring; - reg = &dev_priv->fence_regs[obj->fence_reg]; - list_move_tail(®->lru_list, &dev_priv->mm.fence_list); + /* Bump MRU to take account of the delayed flush */ + if (obj->fence_reg != I915_FENCE_REG_NONE) { + struct drm_i915_fence_reg *reg; + + reg = &dev_priv->fence_regs[obj->fence_reg]; + list_move_tail(®->lru_list, + &dev_priv->mm.fence_list); + } } } diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index 81687af..f51a696 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -498,8 +498,8 @@ pin_and_fence_object(struct drm_i915_gem_object *obj, if (ret) goto err_unpin; } + obj->pending_fenced_gpu_access = true; } - obj->pending_fenced_gpu_access = need_fence; } entry->offset = obj->gtt_offset; -- cgit v0.10.2 From 83b7f9ac9126f0532ca34c14e4f0582c565c6b0d Mon Sep 17 00:00:00 2001 From: Eugeni Dodonov Date: Fri, 23 Mar 2012 11:57:18 -0300 Subject: drm/i915: allow to select rc6 modes via kernel parameter This allows to select which rc6 modes are to be used via kernel parameter, via a bitmask parameter. E.g.: - to enable rc6, i915_enable_rc6=1 - to enable rc6 and deep rc6, i915_enable_rc6=3 - to enable rc6 and deepest rc6, use i915_enable_rc6=5 - to enable rc6, deep and deepest rc6, use i915_enable_rc6=7 Please keep in mind that the deepest RC6 state really should NOT be used by default, as it could potentially worsen the issues with deep RC6. So do enable it only when you know what you are doing. However, having it around could help solving possible future rc6-related issues and their debugging on user machines. Note that this changes behavior - previously, value of 1 would enable both RC6 and deep RC6. Now it should only enable RC6 and deep/deepest RC6 stages must be enabled manually. v2: address Chris Wilson comments and clean up the code. References: https://bugs.freedesktop.org/show_bug.cgi?id=42579 Reviewed-by: Chris Wilson Reviewed-by: Ben Widawsky Signed-off-by: Eugeni Dodonov Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 1a7559b..c7d689e 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -66,7 +66,11 @@ MODULE_PARM_DESC(semaphores, int i915_enable_rc6 __read_mostly = -1; module_param_named(i915_enable_rc6, i915_enable_rc6, int, 0600); MODULE_PARM_DESC(i915_enable_rc6, - "Enable power-saving render C-state 6 (default: -1 (use per-chip default)"); + "Enable power-saving render C-state 6. " + "Different stages can be selected via bitmask values " + "(0 = disable; 1 = enable rc6; 2 = enable deep rc6; 4 = enable deepest rc6). " + "For example, 3 would enable rc6 and deep rc6, and 7 would enable everything. " + "default: -1 (use per-chip default)"); int i915_enable_fbc __read_mostly = -1; module_param_named(i915_enable_fbc, i915_enable_fbc, int, 0600); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index c0f19f5..2c19227 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1053,6 +1053,27 @@ struct drm_i915_file_private { #include "i915_trace.h" +/** + * RC6 is a special power stage which allows the GPU to enter an very + * low-voltage mode when idle, using down to 0V while at this stage. This + * stage is entered automatically when the GPU is idle when RC6 support is + * enabled, and as soon as new workload arises GPU wakes up automatically as well. + * + * There are different RC6 modes available in Intel GPU, which differentiate + * among each other with the latency required to enter and leave RC6 and + * voltage consumed by the GPU in different states. + * + * The combination of the following flags define which states GPU is allowed + * to enter, while RC6 is the normal RC6 state, RC6p is the deep RC6, and + * RC6pp is deepest RC6. Their support by hardware varies according to the + * GPU, BIOS, chipset and platform. RC6 is usually the safest one and the one + * which brings the most power savings; deeper states save more power, but + * require higher latency to switch to and wake up. + */ +#define INTEL_RC6_ENABLE (1<<0) +#define INTEL_RC6p_ENABLE (1<<1) +#define INTEL_RC6pp_ENABLE (1<<2) + extern struct drm_ioctl_desc i915_ioctls[]; extern int i915_max_ioctl; extern unsigned int i915_fbpercrtc __always_unused; diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 0784773..a0a4e3b 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8221,7 +8221,7 @@ void intel_init_emon(struct drm_device *dev) dev_priv->corr = (lcfuse & LCFUSE_HIV_MASK); } -static bool intel_enable_rc6(struct drm_device *dev) +static int intel_enable_rc6(struct drm_device *dev) { /* * Respect the kernel parameter if it is set @@ -8253,6 +8253,7 @@ void gen6_enable_rps(struct drm_i915_private *dev_priv) u32 pcu_mbox, rc6_mask = 0; u32 gtfifodbg; int cur_freq, min_freq, max_freq; + int rc6_mode; int i; /* Here begins a magic sequence of register writes to enable @@ -8290,9 +8291,20 @@ void gen6_enable_rps(struct drm_i915_private *dev_priv) I915_WRITE(GEN6_RC6p_THRESHOLD, 100000); I915_WRITE(GEN6_RC6pp_THRESHOLD, 64000); /* unused */ - if (intel_enable_rc6(dev_priv->dev)) - rc6_mask = GEN6_RC_CTL_RC6_ENABLE | - ((IS_GEN7(dev_priv->dev)) ? GEN6_RC_CTL_RC6p_ENABLE : 0); + rc6_mode = intel_enable_rc6(dev_priv->dev); + if (rc6_mode & INTEL_RC6_ENABLE) + rc6_mask |= GEN6_RC_CTL_RC6_ENABLE; + + if (rc6_mode & INTEL_RC6p_ENABLE) + rc6_mask |= GEN6_RC_CTL_RC6p_ENABLE; + + if (rc6_mode & INTEL_RC6pp_ENABLE) + rc6_mask |= GEN6_RC_CTL_RC6pp_ENABLE; + + DRM_INFO("Enabling RC6 states: RC6 %s, RC6p %s, RC6pp %s\n", + (rc6_mode & INTEL_RC6_ENABLE) ? "on" : "off", + (rc6_mode & INTEL_RC6p_ENABLE) ? "on" : "off", + (rc6_mode & INTEL_RC6pp_ENABLE) ? "on" : "off"); I915_WRITE(GEN6_RC_CONTROL, rc6_mask | -- cgit v0.10.2 From aa46419186992e6b8b8010319f0ca7f40a0d13f5 Mon Sep 17 00:00:00 2001 From: Eugeni Dodonov Date: Fri, 23 Mar 2012 11:57:19 -0300 Subject: drm/i915: enable plain RC6 on Sandy Bridge by default This is yet another chapter in the ongoing saga of bringing RC6 to Sandy Bridge machines by default. Now that we have discovered that RC6 issues are triggered by RC6+ state, let's try to disable it by default. Plain RC6 is the one responsible for most energy savings, and so far it haven't given any problems - at least, none we are aware of. So with this, when i915_enable_rc6=-1 (e.g., the default value), we'll attempt to enable plain RC6 only on SNB. For Ivy Bridge, the behavior stays the same as always - we enable both RC6 and deep RC6. Note that while this exact patch does not has explicit tested-by's, the equivalent settings were fixed in 3.3 kernel by a smaller patch. And it has also received considerable testing through Canonical RC6 task-force testing at https://wiki.ubuntu.com/Kernel/PowerManagementRC6. Up to date, it looks like all the known issues are gone. v2: improve description and reference a couple of open bugs related to RC6 which seem to be fixed with this change. References: https://bugs.freedesktop.org/show_bug.cgi?id=41682 References: https://bugs.freedesktop.org/show_bug.cgi?id=38567 References: https://bugs.freedesktop.org/show_bug.cgi?id=44867 Acked-by: Chris Wilson Signed-off-by: Eugeni Dodonov Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index a0a4e3b..ec6ea92 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8239,11 +8239,11 @@ static int intel_enable_rc6(struct drm_device *dev) * Disable rc6 on Sandybridge */ if (INTEL_INFO(dev)->gen == 6) { - DRM_DEBUG_DRIVER("Sandybridge: RC6 disabled\n"); - return 0; + DRM_DEBUG_DRIVER("Sandybridge: deep RC6 disabled\n"); + return INTEL_RC6_ENABLE; } - DRM_DEBUG_DRIVER("RC6 enabled\n"); - return 1; + DRM_DEBUG_DRIVER("RC6 and deep RC6 enabled\n"); + return (INTEL_RC6_ENABLE | INTEL_RC6p_ENABLE); } void gen6_enable_rps(struct drm_i915_private *dev_priv) -- cgit v0.10.2 From 25e341cfc33d94435472983825163e97fe370a6c Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Sat, 24 Mar 2012 23:51:30 +0100 Subject: drm/i915: quirk away broken OpRegion VBT Somehow the BIOS manages to screw things up when copying the VBT around, because the one we scrap from the VBIOS rom actually works. Cc: stable@kernel.org Tested-by: Markus Heinz Acked-by: Chris Wilson Reviewed-by: Rodrigo Vivi Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=28812 Signed-Off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index 8168d8f..b48fc2a 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -24,6 +24,7 @@ * Eric Anholt * */ +#include #include #include "drmP.h" #include "drm.h" @@ -621,6 +622,26 @@ init_vbt_defaults(struct drm_i915_private *dev_priv) dev_priv->edp.bpp = 18; } +static int __init intel_no_opregion_vbt_callback(const struct dmi_system_id *id) +{ + DRM_DEBUG_KMS("Falling back to manually reading VBT from " + "VBIOS ROM for %s\n", + id->ident); + return 1; +} + +static const struct dmi_system_id intel_no_opregion_vbt[] = { + { + .callback = intel_no_opregion_vbt_callback, + .ident = "ThinkCentre A57", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "97027RG"), + }, + }, + { } +}; + /** * intel_parse_bios - find VBT and initialize settings from the BIOS * @dev: DRM device @@ -641,7 +662,7 @@ intel_parse_bios(struct drm_device *dev) init_vbt_defaults(dev_priv); /* XXX Should this validation be moved to intel_opregion.c? */ - if (dev_priv->opregion.vbt) { + if (!dmi_check_system(intel_no_opregion_vbt) && dev_priv->opregion.vbt) { struct vbt_header *vbt = dev_priv->opregion.vbt; if (memcmp(vbt->signature, "$VBT", 4) == 0) { DRM_DEBUG_KMS("Using VBT from OpRegion: %20s\n", -- cgit v0.10.2 From 1c7eaac737e4cca24703531ebcb566afc3ed285f Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Tue, 27 Mar 2012 09:31:24 +0200 Subject: drm/i915: apply CS reg readback trick against missed IRQ on snb Ben Widawsky reported missed IRQ issues and this patch here helps. We have one other missed IRQ report still left on snb, reported by QA: https://bugs.freedesktop.org/show_bug.cgi?id=46145 This is _not_ a regression due to the forcewake voodoo though, it started showing up before that was applied and has been on-and-off for the past few weeks. According to QA this patch does not help. But the missed IRQ is always from the blt ring (despite running piglit, so also render activity expected), so I'm hopefully that this is an issue with the blt ring itself. Tested-by: Ben Widawsky Signed-Off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index fc66af6..e25581a 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -626,7 +626,7 @@ gen6_ring_get_seqno(struct intel_ring_buffer *ring) /* Workaround to force correct ordering between irq and seqno writes on * ivb (and maybe also on snb) by reading from a CS register (like * ACTHD) before reading the status page. */ - if (IS_GEN7(dev)) + if (IS_GEN6(dev) || IS_GEN7(dev)) intel_ring_get_active_head(ring); return intel_read_status_page(ring, I915_GEM_HWS_INDEX); } -- cgit v0.10.2 From e77166b5a653728f312d07e60a80819d1c54fca4 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Fri, 30 Mar 2012 22:14:05 +0200 Subject: drm/i915: properly clear SSC1 bit in the pch refclock init code Noticed by staring at intel_reg_dumper diffs. Unfortunately it does not seem to completely fix the bug. Still, it's good to get this right, and maybe it helps someplace else. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=47117 Signed-Off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index ec6ea92..91b35fd 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5539,7 +5539,8 @@ void ironlake_init_pch_refclk(struct drm_device *dev) if (intel_panel_use_ssc(dev_priv) && can_ssc) { DRM_DEBUG_KMS("Using SSC on panel\n"); temp |= DREF_SSC1_ENABLE; - } + } else + temp &= ~DREF_SSC1_ENABLE; /* Get SSC going before enabling the outputs */ I915_WRITE(PCH_DREF_CONTROL, temp); -- cgit v0.10.2 From 4b4e9e43fd210e0cd2a5d29357e7c000e13e08ae Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Fri, 23 Mar 2012 11:04:57 +0100 Subject: regmap: rbtree: Fix register default look-up in sync The code currently passes the register offset in the current block to regcache_lookup_reg. This works fine as long as there is only one block and with base register of 0, but in all other cases it will look-up the default for a wrong register, which can cause unnecessary register writes. This patch fixes it by passing the actual register number to regcache_lookup_reg. Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown Cc: diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c index 5157fa0..fb14a63 100644 --- a/drivers/base/regmap/regcache-rbtree.c +++ b/drivers/base/regmap/regcache-rbtree.c @@ -396,7 +396,7 @@ static int regcache_rbtree_sync(struct regmap *map, unsigned int min, map->cache_word_size); /* Is this the hardware default? If so skip. */ - ret = regcache_lookup_reg(map, i); + ret = regcache_lookup_reg(map, regtmp); if (ret >= 0 && val == map->reg_defaults[ret].def) continue; -- cgit v0.10.2 From c1a1260244d8ffe017fbb3199f65c842e4d42fe6 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Tue, 20 Mar 2012 23:06:34 -0400 Subject: hwmon: (gpio-fan) Fix Kconfig dependencies gpio-fan depends on GPIOLIB, not on GENERIC_GPIO. This fixes the following build error, seen if GPIOLIB is not defined: src/drivers/hwmon/gpio-fan.c: error: implicit declaration of function 'gpio_direction_output': => 372:3 src/drivers/hwmon/gpio-fan.c: error: implicit declaration of function 'gpio_free': => 130:2 src/drivers/hwmon/gpio-fan.c: error: implicit declaration of function 'gpio_get_value': => 79:2 src/drivers/hwmon/gpio-fan.c: error: implicit declaration of function 'gpio_request': => 98:2 src/drivers/hwmon/gpio-fan.c: error: implicit declaration of function 'gpio_set_value': => 156:3 src/drivers/hwmon/gpio-fan.c: error: implicit declaration of function 'gpio_to_irq': => 114:2 Signed-off-by: Guenter Roeck Acked-by: Jean Delvare Acked-by: Simon Guinot diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 5b32d56..496f80d 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -425,7 +425,7 @@ config SENSORS_GL520SM config SENSORS_GPIO_FAN tristate "GPIO fan" - depends on GENERIC_GPIO + depends on GPIOLIB help If you say yes here you get support for fans connected to GPIO lines. -- cgit v0.10.2 From be45d422d96ba22ecd0e34690644099d172e9c6d Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Tue, 20 Mar 2012 23:06:35 -0400 Subject: hwmon: (sht15) Fix Kconfig dependencies sht15 depends on GPIOLIB, not on GENERIC_GPIO. This fixes the following build error, seen if GPIOLIB is not defined: src/drivers/hwmon/sht15.c: error: implicit declaration of function 'gpio_direction_input': => 293:2 src/drivers/hwmon/sht15.c: error: implicit declaration of function 'gpio_direction_output': => 216:2 src/drivers/hwmon/sht15.c: error: implicit declaration of function 'gpio_free': => 1000:2 src/drivers/hwmon/sht15.c: error: implicit declaration of function 'gpio_get_value': => 296:2 src/drivers/hwmon/sht15.c: error: implicit declaration of function 'gpio_request': => 946:2 src/drivers/hwmon/sht15.c: error: implicit declaration of function 'gpio_set_value': => 218:2 src/drivers/hwmon/sht15.c: error: implicit declaration of function 'gpio_to_irq': => 514:2 Signed-off-by: Guenter Roeck Acked-by: Jean Delvare diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 496f80d..670f274 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -883,7 +883,7 @@ source drivers/hwmon/pmbus/Kconfig config SENSORS_SHT15 tristate "Sensiron humidity and temperature sensors. SHT15 and compat." - depends on GENERIC_GPIO + depends on GPIOLIB help If you say yes here you get support for the Sensiron SHT10, SHT11, SHT15, SHT71, SHT75 humidity and temperature sensors. -- cgit v0.10.2 From 52f30f77171f934cb9562908cb279178b890a048 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 22 Mar 2012 16:23:58 -0400 Subject: hwmon: (max6639) Convert to dev_pm_ops The I2C specific PM operations have been deprecated and printing a warning on boot for over a year now. Signed-off-by: Mark Brown [guenter.roeck@ericsson.com: Added missing #ifdef around pm functions] Cc: stable@vger.kernel.org # 3.0+ Signed-off-by: Guenter Roeck diff --git a/drivers/hwmon/max6639.c b/drivers/hwmon/max6639.c index 193067e..de8f7ad 100644 --- a/drivers/hwmon/max6639.c +++ b/drivers/hwmon/max6639.c @@ -596,8 +596,10 @@ static int max6639_remove(struct i2c_client *client) return 0; } -static int max6639_suspend(struct i2c_client *client, pm_message_t mesg) +#ifdef CONFIG_PM_SLEEP +static int max6639_suspend(struct device *dev) { + struct i2c_client *client = to_i2c_client(dev); int data = i2c_smbus_read_byte_data(client, MAX6639_REG_GCONFIG); if (data < 0) return data; @@ -606,8 +608,9 @@ static int max6639_suspend(struct i2c_client *client, pm_message_t mesg) MAX6639_REG_GCONFIG, data | MAX6639_GCONFIG_STANDBY); } -static int max6639_resume(struct i2c_client *client) +static int max6639_resume(struct device *dev) { + struct i2c_client *client = to_i2c_client(dev); int data = i2c_smbus_read_byte_data(client, MAX6639_REG_GCONFIG); if (data < 0) return data; @@ -615,6 +618,7 @@ static int max6639_resume(struct i2c_client *client) return i2c_smbus_write_byte_data(client, MAX6639_REG_GCONFIG, data & ~MAX6639_GCONFIG_STANDBY); } +#endif /* CONFIG_PM_SLEEP */ static const struct i2c_device_id max6639_id[] = { {"max6639", 0}, @@ -623,15 +627,18 @@ static const struct i2c_device_id max6639_id[] = { MODULE_DEVICE_TABLE(i2c, max6639_id); +static const struct dev_pm_ops max6639_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(max6639_suspend, max6639_resume) +}; + static struct i2c_driver max6639_driver = { .class = I2C_CLASS_HWMON, .driver = { .name = "max6639", + .pm = &max6639_pm_ops, }, .probe = max6639_probe, .remove = max6639_remove, - .suspend = max6639_suspend, - .resume = max6639_resume, .id_table = max6639_id, .detect = max6639_detect, .address_list = normal_i2c, -- cgit v0.10.2 From 6394011d65b7e74666f07cca98747601cf8298fa Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Sat, 24 Mar 2012 08:38:21 -0700 Subject: hwmon: (f75375s) Fix warning message seen in some configurations In some configurations, BUG() does not result in an endless loop but returns to the caller. This results in the following compiler warning: drivers/hwmon/f75375s.c: In function 'duty_mode_enabled': drivers/hwmon/f75375s.c:280: warning: control reaches end of non-void function drivers/hwmon/f75375s.c: In function 'auto_mode_enabled': drivers/hwmon/f75375s.c:295: warning: control reaches end of non-void function Fix the warning by returning something sensible after BUG(). Cc: Nikolaus Schulz Cc: Riku Voipio Signed-off-by: Guenter Roeck Acked-by: Jean Delvare Signed-off-by: Guenter Roeck diff --git a/drivers/hwmon/f75375s.c b/drivers/hwmon/f75375s.c index 729499e..ece4159 100644 --- a/drivers/hwmon/f75375s.c +++ b/drivers/hwmon/f75375s.c @@ -276,6 +276,7 @@ static bool duty_mode_enabled(u8 pwm_enable) return false; default: BUG(); + return true; } } @@ -291,6 +292,7 @@ static bool auto_mode_enabled(u8 pwm_enable) return true; default: BUG(); + return false; } } -- cgit v0.10.2 From ce15a81da33b961852f6e6a55305ccc60856de25 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Sat, 24 Mar 2012 08:51:05 -0700 Subject: hwmon: (adm1031) Fix compiler warning Some configurations produce the following compile warning: drivers/hwmon/adm1031.c: In function 'set_fan_auto_channel': drivers/hwmon/adm1031.c:292: warning: 'reg' may be used uninitialized in this function While this is a false positive, it can easily be fixed by overloading the return value from get_fan_auto_nearest with both register value and error return code (the register value is never negative). Coincidentially, that also reduces module size by a few bytes. Signed-off-by: Guenter Roeck Acked-by: Jean Delvare diff --git a/drivers/hwmon/adm1031.c b/drivers/hwmon/adm1031.c index ff37363..44e1fd7 100644 --- a/drivers/hwmon/adm1031.c +++ b/drivers/hwmon/adm1031.c @@ -233,18 +233,15 @@ static const auto_chan_table_t auto_channel_select_table_adm1030 = { * nearest match if no exact match where found. */ static int -get_fan_auto_nearest(struct adm1031_data *data, - int chan, u8 val, u8 reg, u8 *new_reg) +get_fan_auto_nearest(struct adm1031_data *data, int chan, u8 val, u8 reg) { int i; int first_match = -1, exact_match = -1; u8 other_reg_val = (*data->chan_select_table)[FAN_CHAN_FROM_REG(reg)][chan ? 0 : 1]; - if (val == 0) { - *new_reg = 0; + if (val == 0) return 0; - } for (i = 0; i < 8; i++) { if ((val == (*data->chan_select_table)[i][chan]) && @@ -264,13 +261,11 @@ get_fan_auto_nearest(struct adm1031_data *data, } if (exact_match >= 0) - *new_reg = exact_match; + return exact_match; else if (first_match >= 0) - *new_reg = first_match; - else - return -EINVAL; + return first_match; - return 0; + return -EINVAL; } static ssize_t show_fan_auto_channel(struct device *dev, @@ -301,11 +296,12 @@ set_fan_auto_channel(struct device *dev, struct device_attribute *attr, mutex_lock(&data->update_lock); - ret = get_fan_auto_nearest(data, nr, val, data->conf1, ®); - if (ret) { + ret = get_fan_auto_nearest(data, nr, val, data->conf1); + if (ret < 0) { mutex_unlock(&data->update_lock); return ret; } + reg = ret; data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1); if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) ^ (old_fan_mode & ADM1031_CONF1_AUTO_MODE)) { -- cgit v0.10.2 From 31e354ee653c3d85e802a372f27224130fc95011 Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Wed, 28 Mar 2012 15:11:47 -0400 Subject: hwmon: (acpi_power_meter) fix lockdep spew due to non-static lock class Similar to a30dcb4f which fixed asus_atk0110.ko, I recently received a bug report from someone hitting the same issue in acpi_power_meter. [ 13.963168] power_meter ACPI000D:00: Found ACPI power meter. [ 13.963900] BUG: key ffff8802161f3920 not in .data! [ 13.963904] ------------[ cut here ]------------ [ 13.963915] WARNING: at kernel/lockdep.c:2986 lockdep_init_map+0x52f/0x560() So let's fix that up for them by statically declaring the lockdep_class_key. Signed-off-by: Kyle McMartin Cc: stable@vger.kernel.org # 3.0+ Signed-off-by: Guenter Roeck diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c index 554f046..145f135 100644 --- a/drivers/hwmon/acpi_power_meter.c +++ b/drivers/hwmon/acpi_power_meter.c @@ -632,6 +632,7 @@ static int register_ro_attrs(struct acpi_power_meter_resource *resource, sensors->dev_attr.show = ro->show; sensors->index = ro->index; + sysfs_attr_init(&sensors->dev_attr.attr); res = device_create_file(dev, &sensors->dev_attr); if (res) { sensors->dev_attr.attr.name = NULL; @@ -661,6 +662,7 @@ static int register_rw_attrs(struct acpi_power_meter_resource *resource, sensors->dev_attr.store = rw->set; sensors->index = rw->index; + sysfs_attr_init(&sensors->dev_attr.attr); res = device_create_file(dev, &sensors->dev_attr); if (res) { sensors->dev_attr.attr.name = NULL; -- cgit v0.10.2 From 6f7805a8d9dc6fa8af999f8603188157505558d9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Fri, 30 Mar 2012 16:04:55 -0400 Subject: hwmon: (w83627ehf) mark const init data with __initconst instead of __initdata MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit As long as there is no other non-const variable marked __initdata in the same compilation unit it doesn't hurt. If there were one however compilation would fail with error: $variablename causes a section type conflict because a section containing const variables is marked read only and so cannot contain non-const variables. Signed-off-by: Uwe Kleine-König Cc: Jean Delvare Cc: Guenter Roeck Cc: lm-sensors@lm-sensors.org Signed-off-by: Guenter Roeck diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c index a25350c..54922ed 100644 --- a/drivers/hwmon/w83627ehf.c +++ b/drivers/hwmon/w83627ehf.c @@ -2619,15 +2619,15 @@ static struct platform_driver w83627ehf_driver = { static int __init w83627ehf_find(int sioaddr, unsigned short *addr, struct w83627ehf_sio_data *sio_data) { - static const char __initdata sio_name_W83627EHF[] = "W83627EHF"; - static const char __initdata sio_name_W83627EHG[] = "W83627EHG"; - static const char __initdata sio_name_W83627DHG[] = "W83627DHG"; - static const char __initdata sio_name_W83627DHG_P[] = "W83627DHG-P"; - static const char __initdata sio_name_W83627UHG[] = "W83627UHG"; - static const char __initdata sio_name_W83667HG[] = "W83667HG"; - static const char __initdata sio_name_W83667HG_B[] = "W83667HG-B"; - static const char __initdata sio_name_NCT6775[] = "NCT6775F"; - static const char __initdata sio_name_NCT6776[] = "NCT6776F"; + static const char sio_name_W83627EHF[] __initconst = "W83627EHF"; + static const char sio_name_W83627EHG[] __initconst = "W83627EHG"; + static const char sio_name_W83627DHG[] __initconst = "W83627DHG"; + static const char sio_name_W83627DHG_P[] __initconst = "W83627DHG-P"; + static const char sio_name_W83627UHG[] __initconst = "W83627UHG"; + static const char sio_name_W83667HG[] __initconst = "W83667HG"; + static const char sio_name_W83667HG_B[] __initconst = "W83667HG-B"; + static const char sio_name_NCT6775[] __initconst = "NCT6775F"; + static const char sio_name_NCT6776[] __initconst = "NCT6776F"; u16 val; const char *sio_name; -- cgit v0.10.2 From fbc729a446f7d80ec8b73fe90d8c0cc3e95ad277 Mon Sep 17 00:00:00 2001 From: Andre Przywara Date: Fri, 30 Mar 2012 16:48:20 -0400 Subject: hwmon: (k10temp) Add support for AMD Trinity CPUs The on-chip northbridge's temperature sensor of the upcoming AMD Trinity CPUs works the same as for the previous CPUs. Since it has a different PCI-ID, we just add the new one to the list supported by k10temp. This allows to use the k10temp driver on those CPUs. Signed-off-by: Andre Przywara Cc: stable@vger.kernel.org # 3.0+ Signed-off-by: Guenter Roeck diff --git a/Documentation/hwmon/k10temp b/Documentation/hwmon/k10temp index a10f736..90956b6 100644 --- a/Documentation/hwmon/k10temp +++ b/Documentation/hwmon/k10temp @@ -11,7 +11,7 @@ Supported chips: Socket S1G2: Athlon (X2), Sempron (X2), Turion X2 (Ultra) * AMD Family 12h processors: "Llano" (E2/A4/A6/A8-Series) * AMD Family 14h processors: "Brazos" (C/E/G/Z-Series) -* AMD Family 15h processors: "Bulldozer" +* AMD Family 15h processors: "Bulldozer" (FX-Series), "Trinity" Prefix: 'k10temp' Addresses scanned: PCI space diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 670f274..8deedc1 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -253,7 +253,8 @@ config SENSORS_K10TEMP If you say yes here you get support for the temperature sensor(s) inside your CPU. Supported are later revisions of the AMD Family 10h and all revisions of the AMD Family 11h, - 12h (Llano), 14h (Brazos) and 15h (Bulldozer) microarchitectures. + 12h (Llano), 14h (Brazos) and 15h (Bulldozer/Trinity) + microarchitectures. This driver can also be built as a module. If so, the module will be called k10temp. diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c index aba29d6..307bb32 100644 --- a/drivers/hwmon/k10temp.c +++ b/drivers/hwmon/k10temp.c @@ -33,6 +33,9 @@ static bool force; module_param(force, bool, 0444); MODULE_PARM_DESC(force, "force loading on processors with erratum 319"); +/* PCI-IDs for Northbridge devices not used anywhere else */ +#define PCI_DEVICE_ID_AMD_15H_M10H_NB_F3 0x1403 + /* CPUID function 0x80000001, ebx */ #define CPUID_PKGTYPE_MASK 0xf0000000 #define CPUID_PKGTYPE_F 0x00000000 @@ -210,6 +213,7 @@ static DEFINE_PCI_DEVICE_TABLE(k10temp_id_table) = { { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_11H_NB_MISC) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_CNB17H_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_NB_F3) }, + { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_M10H_NB_F3) }, {} }; MODULE_DEVICE_TABLE(pci, k10temp_id_table); -- cgit v0.10.2 From 9ebb389d0a03b4415fe9014f6922a2412cb1109c Mon Sep 17 00:00:00 2001 From: Steve French Date: Sun, 1 Apr 2012 13:52:54 -0500 Subject: Revert "CIFS: Fix VFS lock usage for oplocked files" Revert previous version of patch to incorporate feedback so that we can merge version 3 of the patch instead.w This reverts commit b5efb978469d152c2c7c0a09746fb0bfc6171868. diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 0a11dbb..460d87b 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -671,21 +671,6 @@ cifs_del_lock_waiters(struct cifsLockInfo *lock) } } -/* - * Copied from fs/locks.c with small changes. - * Remove waiter from blocker's block list. - * When blocker ends up pointing to itself then the list is empty. - */ -static void -cifs_locks_delete_block(struct file_lock *waiter) -{ - lock_flocks(); - list_del_init(&waiter->fl_block); - list_del_init(&waiter->fl_link); - waiter->fl_next = NULL; - unlock_flocks(); -} - static bool __cifs_find_lock_conflict(struct cifsInodeInfo *cinode, __u64 offset, __u64 length, __u8 type, __u16 netfid, @@ -835,39 +820,6 @@ cifs_posix_lock_test(struct file *file, struct file_lock *flock) return rc; } -/* Called with locked lock_mutex, return with unlocked. */ -static int -cifs_posix_lock_file_wait_locked(struct file *file, struct file_lock *flock) -{ - struct cifsInodeInfo *cinode = CIFS_I(file->f_path.dentry->d_inode); - int rc; - - while (true) { - rc = posix_lock_file(file, flock, NULL); - mutex_unlock(&cinode->lock_mutex); - if (rc != FILE_LOCK_DEFERRED) - break; - rc = wait_event_interruptible(flock->fl_wait, !flock->fl_next); - if (!rc) { - mutex_lock(&cinode->lock_mutex); - continue; - } - cifs_locks_delete_block(flock); - break; - } - return rc; -} - -static int -cifs_posix_lock_file_wait(struct file *file, struct file_lock *flock) -{ - struct cifsInodeInfo *cinode = CIFS_I(file->f_path.dentry->d_inode); - - mutex_lock(&cinode->lock_mutex); - /* lock_mutex will be released by the function below */ - return cifs_posix_lock_file_wait_locked(file, flock); -} - /* * Set the byte-range lock (posix style). Returns: * 1) 0, if we set the lock and don't need to request to the server; @@ -888,9 +840,9 @@ cifs_posix_lock_set(struct file *file, struct file_lock *flock) mutex_unlock(&cinode->lock_mutex); return rc; } - - /* lock_mutex will be released by the function below */ - return cifs_posix_lock_file_wait_locked(file, flock); + rc = posix_lock_file_wait(file, flock); + mutex_unlock(&cinode->lock_mutex); + return rc; } static int @@ -1386,7 +1338,7 @@ cifs_setlk(struct file *file, struct file_lock *flock, __u8 type, out: if (flock->fl_flags & FL_POSIX) - cifs_posix_lock_file_wait(file, flock); + posix_lock_file_wait(file, flock); return rc; } -- cgit v0.10.2 From 66189be74ff5f9f3fd6444315b85be210d07cef2 Mon Sep 17 00:00:00 2001 From: Pavel Shilovsky Date: Wed, 28 Mar 2012 21:56:19 +0400 Subject: CIFS: Fix VFS lock usage for oplocked files We can deadlock if we have a write oplock and two processes use the same file handle. In this case the first process can't unlock its lock if the second process blocked on the lock in the same time. Fix it by using posix_lock_file rather than posix_lock_file_wait under cinode->lock_mutex. If we request a blocking lock and posix_lock_file indicates that there is another lock that prevents us, wait untill that lock is released and restart our call. Cc: stable@kernel.org Acked-by: Jeff Layton Signed-off-by: Pavel Shilovsky Signed-off-by: Steve French diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 460d87b..fae765d 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -835,13 +835,21 @@ cifs_posix_lock_set(struct file *file, struct file_lock *flock) if ((flock->fl_flags & FL_POSIX) == 0) return rc; +try_again: mutex_lock(&cinode->lock_mutex); if (!cinode->can_cache_brlcks) { mutex_unlock(&cinode->lock_mutex); return rc; } - rc = posix_lock_file_wait(file, flock); + + rc = posix_lock_file(file, flock, NULL); mutex_unlock(&cinode->lock_mutex); + if (rc == FILE_LOCK_DEFERRED) { + rc = wait_event_interruptible(flock->fl_wait, !flock->fl_next); + if (!rc) + goto try_again; + locks_delete_block(flock); + } return rc; } diff --git a/fs/locks.c b/fs/locks.c index 637694b..0d68f1f 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -510,12 +510,13 @@ static void __locks_delete_block(struct file_lock *waiter) /* */ -static void locks_delete_block(struct file_lock *waiter) +void locks_delete_block(struct file_lock *waiter) { lock_flocks(); __locks_delete_block(waiter); unlock_flocks(); } +EXPORT_SYMBOL(locks_delete_block); /* Insert waiter into blocker's block list. * We use a circular list so that processes can be easily woken up in diff --git a/include/linux/fs.h b/include/linux/fs.h index 135693e..5286118 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1215,6 +1215,7 @@ extern int vfs_setlease(struct file *, long, struct file_lock **); extern int lease_modify(struct file_lock **, int); extern int lock_may_read(struct inode *, loff_t start, unsigned long count); extern int lock_may_write(struct inode *, loff_t start, unsigned long count); +extern void locks_delete_block(struct file_lock *waiter); extern void lock_flocks(void); extern void unlock_flocks(void); #else /* !CONFIG_FILE_LOCKING */ @@ -1359,6 +1360,10 @@ static inline int lock_may_write(struct inode *inode, loff_t start, return 1; } +static inline void locks_delete_block(struct file_lock *waiter) +{ +} + static inline void lock_flocks(void) { } -- cgit v0.10.2 From 67378563df2e168d32a4054616f244a91aec462d Mon Sep 17 00:00:00 2001 From: David Ward Date: Tue, 27 Mar 2012 09:01:52 +0000 Subject: net/garp: avoid infinite loop if attribute already exists An infinite loop occurred if garp_attr_create was called with the values of an existing attribute. This might happen if a previous leave request for the attribute has not yet been followed by a PDU transmission (or, if the application previously issued a join request for the attribute and is now issuing another one, without having issued a leave request). If garp_attr_create finds an existing attribute having the same values, return the address to it. Its state will then get updated (i.e., if it was in a leaving state, it will move into a non-leaving state and not get deleted during the next PDU transmission). To accomplish this fix, collapse garp_attr_insert into garp_attr_create (which is its only caller). Thanks to Jorge Boncompte [DTI2] for contributing to this fix. Signed-off-by: David Ward Acked-by: Jorge Boncompte [DTI2] Signed-off-by: David S. Miller diff --git a/net/802/garp.c b/net/802/garp.c index 8e21b6d..a5c2248 100644 --- a/net/802/garp.c +++ b/net/802/garp.c @@ -167,7 +167,8 @@ static struct garp_attr *garp_attr_lookup(const struct garp_applicant *app, return NULL; } -static void garp_attr_insert(struct garp_applicant *app, struct garp_attr *new) +static struct garp_attr *garp_attr_create(struct garp_applicant *app, + const void *data, u8 len, u8 type) { struct rb_node *parent = NULL, **p = &app->gid.rb_node; struct garp_attr *attr; @@ -176,21 +177,16 @@ static void garp_attr_insert(struct garp_applicant *app, struct garp_attr *new) while (*p) { parent = *p; attr = rb_entry(parent, struct garp_attr, node); - d = garp_attr_cmp(attr, new->data, new->dlen, new->type); + d = garp_attr_cmp(attr, data, len, type); if (d < 0) p = &parent->rb_left; else if (d > 0) p = &parent->rb_right; + else { + /* The attribute already exists; re-use it. */ + return attr; + } } - rb_link_node(&new->node, parent, p); - rb_insert_color(&new->node, &app->gid); -} - -static struct garp_attr *garp_attr_create(struct garp_applicant *app, - const void *data, u8 len, u8 type) -{ - struct garp_attr *attr; - attr = kmalloc(sizeof(*attr) + len, GFP_ATOMIC); if (!attr) return attr; @@ -198,7 +194,9 @@ static struct garp_attr *garp_attr_create(struct garp_applicant *app, attr->type = type; attr->dlen = len; memcpy(attr->data, data, len); - garp_attr_insert(app, attr); + + rb_link_node(&attr->node, parent, p); + rb_insert_color(&attr->node, &app->gid); return attr; } -- cgit v0.10.2 From 464b57da56910c8737ede75ad820b9a7afc46b3e Mon Sep 17 00:00:00 2001 From: Kenth Eriksson Date: Tue, 27 Mar 2012 22:05:54 +0000 Subject: Fix non TBI PHY access; a bad merge undid bug fix in a previous commit. The merge done in commit b26e478f undid bug fix in commit c3e072f8 ("net: fsl_pq_mdio: fix non tbi phy access"), with the result that non TBI (e.g. MDIO) PHYs cannot be accessed. Signed-off-by: Kenth Eriksson Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/freescale/fsl_pq_mdio.c b/drivers/net/ethernet/freescale/fsl_pq_mdio.c index 9eb8159..f7f0bf5 100644 --- a/drivers/net/ethernet/freescale/fsl_pq_mdio.c +++ b/drivers/net/ethernet/freescale/fsl_pq_mdio.c @@ -356,13 +356,13 @@ static int fsl_pq_mdio_probe(struct platform_device *ofdev) if (prop) tbiaddr = *prop; - } - if (tbiaddr == -1) { - err = -EBUSY; - goto err_free_irqs; - } else { - out_be32(tbipa, tbiaddr); + if (tbiaddr == -1) { + err = -EBUSY; + goto err_free_irqs; + } else { + out_be32(tbipa, tbiaddr); + } } err = of_mdiobus_register(new_bus, np); -- cgit v0.10.2 From 81213b5e8ae68e204aa7a3f83c4f9100405dbff9 Mon Sep 17 00:00:00 2001 From: "danborkmann@iogearbox.net" Date: Tue, 27 Mar 2012 22:47:43 +0000 Subject: rose_dev: fix memcpy-bug in rose_set_mac_address If both addresses equal, nothing needs to be done. If the device is down, then we simply copy the new address to dev->dev_addr. If the device is up, then we add another loopback device with the new address, and if that does not fail, we remove the loopback device with the old address. And only then, we update the dev->dev_addr. Signed-off-by: Daniel Borkmann Signed-off-by: David S. Miller diff --git a/net/rose/rose_dev.c b/net/rose/rose_dev.c index 178ff4f..2679507 100644 --- a/net/rose/rose_dev.c +++ b/net/rose/rose_dev.c @@ -96,11 +96,11 @@ static int rose_set_mac_address(struct net_device *dev, void *addr) struct sockaddr *sa = addr; int err; - if (!memcpy(dev->dev_addr, sa->sa_data, dev->addr_len)) + if (!memcmp(dev->dev_addr, sa->sa_data, dev->addr_len)) return 0; if (dev->flags & IFF_UP) { - err = rose_add_loopback_node((rose_address *)dev->dev_addr); + err = rose_add_loopback_node((rose_address *)sa->sa_data); if (err) return err; -- cgit v0.10.2 From 6523cf9a460c488c681b7e4ecef2395491de1d4e Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Wed, 28 Mar 2012 12:10:57 +0000 Subject: net/netfilter/nfnetlink_acct.c: use linux/atomic.h There's no known problem here, but this is one of only two non-arch files in the kernel which use asm/atomic.h instead of linux/atomic.h. Acked-by: Pablo Neira Ayuso Cc: Patrick McHardy Cc: "David S. Miller" Signed-off-by: Andrew Morton Signed-off-by: David S. Miller diff --git a/net/netfilter/nfnetlink_acct.c b/net/netfilter/nfnetlink_acct.c index 3eb348b..d98c868 100644 --- a/net/netfilter/nfnetlink_acct.c +++ b/net/netfilter/nfnetlink_acct.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include #include @@ -17,7 +18,6 @@ #include #include #include -#include #include #include -- cgit v0.10.2 From cdaf0b835df04177397b90214f8b457fd23b67e0 Mon Sep 17 00:00:00 2001 From: "stigge@antcom.de" Date: Wed, 28 Mar 2012 12:36:26 +0000 Subject: net: lpc_eth: Fix rename of dev_hw_addr_random In parallel to the integration of lpc_eth.c, dev_hw_addr_random() has been renamed to eth_hw_addr_random(). This patch fixes it also in the new driver lpc_eth.c. Signed-off-by: Roland Stigge Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/nxp/lpc_eth.c b/drivers/net/ethernet/nxp/lpc_eth.c index 6944424..6dfc26d 100644 --- a/drivers/net/ethernet/nxp/lpc_eth.c +++ b/drivers/net/ethernet/nxp/lpc_eth.c @@ -1441,7 +1441,7 @@ static int lpc_eth_drv_probe(struct platform_device *pdev) } #endif if (!is_valid_ether_addr(ndev->dev_addr)) - dev_hw_addr_random(ndev, ndev->dev_addr); + eth_hw_addr_random(ndev); /* Reset the ethernet controller */ __lpc_eth_reset(pldat); -- cgit v0.10.2 From 7224c0d1045327d637dab2c90777b6d5ec6d6804 Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Fri, 30 Mar 2012 15:52:09 +1000 Subject: m68k: include asm/cmpxchg.h in our m68k atomic.h MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit After commit 9ffc93f203c18a70623f21950f1dd473c9ec48cd ("Remove all CC init/main.o In file included from include/linux/mm.h:15:0, from include/linux/ring_buffer.h:5, from include/linux/ftrace_event.h:4, from include/trace/syscall.h:6, from include/linux/syscalls.h:78, from init/main.c:16: include/linux/debug_locks.h: In function ‘__debug_locks_off’: include/linux/debug_locks.h:16:2: error: implicit declaration of function ‘xchg’ There is no indirect inclusions of the new asm/cmpxchg.h for m68k here. Looking at most other architectures they include asm/cmpxchg.h in their asm/atomic.h. M68k currently does not do this. Including this in atomic.h fixes all m68k build problems. Signed-off-by: Greg Ungerer Acked-by: David Howells Signed-off-by: Geert Uytterhoeven diff --git a/arch/m68k/include/asm/atomic.h b/arch/m68k/include/asm/atomic.h index 336e617..f4e32de 100644 --- a/arch/m68k/include/asm/atomic.h +++ b/arch/m68k/include/asm/atomic.h @@ -3,6 +3,7 @@ #include #include +#include /* * Atomic operations that C can't guarantee us. Useful for -- cgit v0.10.2 From 6cfeba53911d6d2f17ebbd1246893557d5ff5aeb Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Sun, 18 Mar 2012 13:21:38 +0100 Subject: m68k/mac: Add missing platform check before registering platform devices On multi-platform kernels, the Mac platform devices should be registered when running on Mac only. Else it may crash later. Signed-off-by: Geert Uytterhoeven Cc: stable@vger.kernel.org diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c index 96fa6ed..d9f62e0 100644 --- a/arch/m68k/mac/config.c +++ b/arch/m68k/mac/config.c @@ -980,6 +980,9 @@ int __init mac_platform_init(void) { u8 *swim_base; + if (!MACH_IS_MAC) + return -ENODEV; + /* * Serial devices */ -- cgit v0.10.2 From 450aed725c9a53282483c48ebd012feefae94a07 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Sun, 18 Mar 2012 13:20:27 +0100 Subject: m68k/q40: Add missing platform check before registering platform devices On multi-platform kernels, the Q40/Q60 platform devices should be registered when running on Q40/Q60 only. Else it may crash later. Signed-off-by: Geert Uytterhoeven diff --git a/arch/m68k/q40/config.c b/arch/m68k/q40/config.c index 512adb6..8a1ce32 100644 --- a/arch/m68k/q40/config.c +++ b/arch/m68k/q40/config.c @@ -334,6 +334,9 @@ static __init int q40_add_kbd_device(void) { struct platform_device *pdev; + if (!MACH_IS_Q40) + return -ENODEV; + pdev = platform_device_register_simple("q40kbd", -1, NULL, 0); if (IS_ERR(pdev)) return PTR_ERR(pdev); -- cgit v0.10.2 From 2533e824153b51bda27fe41ed1a5512047f42707 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Sun, 1 Apr 2012 08:54:38 +0000 Subject: sparc: pgtable_64: change include order Fix the following build breakage in v3.4-rc1: CC arch/sparc/kernel/cpu.o In file included from /home/aaro/git/linux/arch/sparc/include/asm/pgtable_64.h:15:0, from /home/aaro/git/linux/arch/sparc/include/asm/pgtable.h:4, from arch/sparc/kernel/cpu.c:15: include/asm-generic/pgtable-nopud.h:13:16: error: unknown type name 'pgd_t' include/asm-generic/pgtable-nopud.h:25:28: error: unknown type name 'pgd_t' include/asm-generic/pgtable-nopud.h:26:27: error: unknown type name 'pgd_t' include/asm-generic/pgtable-nopud.h:27:31: error: unknown type name 'pgd_t' include/asm-generic/pgtable-nopud.h:28:30: error: unknown type name 'pgd_t' include/asm-generic/pgtable-nopud.h:38:34: error: unknown type name 'pgd_t' In file included from /home/aaro/git/linux/arch/sparc/include/asm/pgtable_64.h:783:0, from /home/aaro/git/linux/arch/sparc/include/asm/pgtable.h:4, from arch/sparc/kernel/cpu.c:15: include/asm-generic/pgtable.h: In function 'pgd_none_or_clear_bad': include/asm-generic/pgtable.h:258:2: error: implicit declaration of function 'pgd_none' [-Werror=implicit-function-declaration] include/asm-generic/pgtable.h:260:2: error: implicit declaration of function 'pgd_bad' [-Werror=implicit-function-declaration] include/asm-generic/pgtable.h: In function 'pud_none_or_clear_bad': include/asm-generic/pgtable.h:269:6: error: request for member 'pgd' in something not a structure or union Reported-by: Meelis Roos Signed-off-by: Aaro Koskinen Signed-off-by: David S. Miller diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h index 6fa2f79..76e4a52 100644 --- a/arch/sparc/include/asm/pgtable_64.h +++ b/arch/sparc/include/asm/pgtable_64.h @@ -12,8 +12,6 @@ * the SpitFire page tables. */ -#include - #include #include #include @@ -22,6 +20,8 @@ #include #include +#include + /* The kernel image occupies 0x4000000 to 0x6000000 (4MB --> 96MB). * The page copy blockops can use 0x6000000 to 0x8000000. * The TSB is mapped in the 0x8000000 to 0xa000000 range. -- cgit v0.10.2 From 72331bc0cd072c3f4b670cd1256e47681fc53b80 Mon Sep 17 00:00:00 2001 From: Shmulik Ladkani Date: Sun, 1 Apr 2012 04:03:45 +0000 Subject: ipv6: Fix RTM_GETROUTE's interpretation of RTA_IIF to be consistent with ipv4 In IPv4, if an RTA_IIF attribute is specified within an RTM_GETROUTE message, then a route is searched as if a packet was received on the specified 'iif' interface. However in IPv6, RTA_IIF is not interpreted in the same way: 'inet6_rtm_getroute()' always calls 'ip6_route_output()', regardless the RTA_IIF attribute. As a result, in IPv6 there's no way to use RTM_GETROUTE in order to look for a route as if a packet was received on a specific interface. Fix 'inet6_rtm_getroute()' so that RTA_IIF is interpreted as "lookup a route as if a packet was received on the specified interface", similar to IPv4's 'inet_rtm_getroute()' interpretation. Reported-by: Ami Koren Signed-off-by: Shmulik Ladkani Signed-off-by: David S. Miller diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 496b627..3992e26 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -881,6 +881,16 @@ static struct rt6_info *ip6_pol_route_input(struct net *net, struct fib6_table * return ip6_pol_route(net, table, fl6->flowi6_iif, fl6, flags); } +static struct dst_entry *ip6_route_input_lookup(struct net *net, + struct net_device *dev, + struct flowi6 *fl6, int flags) +{ + if (rt6_need_strict(&fl6->daddr) && dev->type != ARPHRD_PIMREG) + flags |= RT6_LOOKUP_F_IFACE; + + return fib6_rule_lookup(net, fl6, flags, ip6_pol_route_input); +} + void ip6_route_input(struct sk_buff *skb) { const struct ipv6hdr *iph = ipv6_hdr(skb); @@ -895,10 +905,7 @@ void ip6_route_input(struct sk_buff *skb) .flowi6_proto = iph->nexthdr, }; - if (rt6_need_strict(&iph->daddr) && skb->dev->type != ARPHRD_PIMREG) - flags |= RT6_LOOKUP_F_IFACE; - - skb_dst_set(skb, fib6_rule_lookup(net, &fl6, flags, ip6_pol_route_input)); + skb_dst_set(skb, ip6_route_input_lookup(net, skb->dev, &fl6, flags)); } static struct rt6_info *ip6_pol_route_output(struct net *net, struct fib6_table *table, @@ -2537,7 +2544,7 @@ static int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void struct sk_buff *skb; struct rtmsg *rtm; struct flowi6 fl6; - int err, iif = 0; + int err, iif = 0, oif = 0; err = nlmsg_parse(nlh, sizeof(*rtm), tb, RTA_MAX, rtm_ipv6_policy); if (err < 0) @@ -2564,15 +2571,29 @@ static int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void iif = nla_get_u32(tb[RTA_IIF]); if (tb[RTA_OIF]) - fl6.flowi6_oif = nla_get_u32(tb[RTA_OIF]); + oif = nla_get_u32(tb[RTA_OIF]); if (iif) { struct net_device *dev; + int flags = 0; + dev = __dev_get_by_index(net, iif); if (!dev) { err = -ENODEV; goto errout; } + + fl6.flowi6_iif = iif; + + if (!ipv6_addr_any(&fl6.saddr)) + flags |= RT6_LOOKUP_F_HAS_SADDR; + + rt = (struct rt6_info *)ip6_route_input_lookup(net, dev, &fl6, + flags); + } else { + fl6.flowi6_oif = oif; + + rt = (struct rt6_info *)ip6_route_output(net, NULL, &fl6); } skb = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL); @@ -2587,7 +2608,6 @@ static int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void skb_reset_mac_header(skb); skb_reserve(skb, MAX_HEADER + sizeof(struct ipv6hdr)); - rt = (struct rt6_info*) ip6_route_output(net, NULL, &fl6); skb_dst_set(skb, &rt->dst); err = rt6_fill_node(net, skb, rt, &fl6.daddr, &fl6.saddr, iif, -- cgit v0.10.2 From 5bf14c0727a07ded1bd9fa6d77923d7e6dc32833 Mon Sep 17 00:00:00 2001 From: Tao Ma Date: Sun, 1 Apr 2012 14:33:39 -0700 Subject: block: Make cfq_target_latency tunable through sysfs. In cfq, when we calculate a time slice for a process(or a cfqq to be precise), we have to consider the cfq_target_latency so that all the sync request have an estimated latency(300ms) and it is controlled by cfq_target_latency. But in some hadoop test, we have found that if there are many processes doing sequential read(24 for example), the throughput is bad because every process can only work for about 25ms and the cfqq is switched. That leads to a higher disk seek. We can achive the good throughput by setting low_latency=0, but then some read's latency is too much for the application. So this patch makes cfq_target_latency tunable through sysfs so that we can tune it and find some magic number which is not bad for both the throughput and the read latency. Cc: Jens Axboe Signed-off-by: Tao Ma Signed-off-by: Jens Axboe diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 4572952..3c38536 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -295,6 +295,7 @@ struct cfq_data { unsigned int cfq_slice_idle; unsigned int cfq_group_idle; unsigned int cfq_latency; + unsigned int cfq_target_latency; /* * Fallback dummy cfqq for extreme OOM conditions @@ -604,7 +605,7 @@ cfq_group_slice(struct cfq_data *cfqd, struct cfq_group *cfqg) { struct cfq_rb_root *st = &cfqd->grp_service_tree; - return cfq_target_latency * cfqg->weight / st->total_weight; + return cfqd->cfq_target_latency * cfqg->weight / st->total_weight; } static inline unsigned @@ -2271,7 +2272,8 @@ new_workload: * to have higher weight. A more accurate thing would be to * calculate system wide asnc/sync ratio. */ - tmp = cfq_target_latency * cfqg_busy_async_queues(cfqd, cfqg); + tmp = cfqd->cfq_target_latency * + cfqg_busy_async_queues(cfqd, cfqg); tmp = tmp/cfqd->busy_queues; slice = min_t(unsigned, slice, tmp); @@ -3737,6 +3739,7 @@ static void *cfq_init_queue(struct request_queue *q) cfqd->cfq_back_penalty = cfq_back_penalty; cfqd->cfq_slice[0] = cfq_slice_async; cfqd->cfq_slice[1] = cfq_slice_sync; + cfqd->cfq_target_latency = cfq_target_latency; cfqd->cfq_slice_async_rq = cfq_slice_async_rq; cfqd->cfq_slice_idle = cfq_slice_idle; cfqd->cfq_group_idle = cfq_group_idle; @@ -3788,6 +3791,7 @@ SHOW_FUNCTION(cfq_slice_sync_show, cfqd->cfq_slice[1], 1); SHOW_FUNCTION(cfq_slice_async_show, cfqd->cfq_slice[0], 1); SHOW_FUNCTION(cfq_slice_async_rq_show, cfqd->cfq_slice_async_rq, 0); SHOW_FUNCTION(cfq_low_latency_show, cfqd->cfq_latency, 0); +SHOW_FUNCTION(cfq_target_latency_show, cfqd->cfq_target_latency, 1); #undef SHOW_FUNCTION #define STORE_FUNCTION(__FUNC, __PTR, MIN, MAX, __CONV) \ @@ -3821,6 +3825,7 @@ STORE_FUNCTION(cfq_slice_async_store, &cfqd->cfq_slice[0], 1, UINT_MAX, 1); STORE_FUNCTION(cfq_slice_async_rq_store, &cfqd->cfq_slice_async_rq, 1, UINT_MAX, 0); STORE_FUNCTION(cfq_low_latency_store, &cfqd->cfq_latency, 0, 1, 0); +STORE_FUNCTION(cfq_target_latency_store, &cfqd->cfq_target_latency, 1, UINT_MAX, 1); #undef STORE_FUNCTION #define CFQ_ATTR(name) \ @@ -3838,6 +3843,7 @@ static struct elv_fs_entry cfq_attrs[] = { CFQ_ATTR(slice_idle), CFQ_ATTR(group_idle), CFQ_ATTR(low_latency), + CFQ_ATTR(target_latency), __ATTR_NULL }; -- cgit v0.10.2 From 407ac95e2271a310016ced97f407676e79c53c06 Mon Sep 17 00:00:00 2001 From: Tao Ma Date: Sun, 1 Apr 2012 14:33:40 -0700 Subject: Documentation: Add sysfs ABI change for cfq's target latency. Cc: Jens Axboe Cc: Greg Kroah-Hartman Signed-off-by: Tao Ma Signed-off-by: Jens Axboe diff --git a/Documentation/ABI/testing/sysfs-cfq-target-latency b/Documentation/ABI/testing/sysfs-cfq-target-latency new file mode 100644 index 0000000..df0f782 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-cfq-target-latency @@ -0,0 +1,8 @@ +What: /sys/block//iosched/target_latency +Date: March 2012 +contact: Tao Ma +Description: + The /sys/block//iosched/target_latency only exists + when the user sets cfq to /sys/block//scheduler. + It contains an estimated latency time for the cfq. cfq will + use it to calculate the time slice used for every task. -- cgit v0.10.2 From 8551f3ff49aeda57c6c204a4a4769395fa679fb8 Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Thu, 29 Mar 2012 08:55:48 +0900 Subject: ARM: S3C24XX: fix missing common.h in mach-s3c24xx/ This patch fixes missing mach-s3c24xx/common.h which has been lost when regarding s3c24xx directories merged. Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-s3c24xx/common.h b/arch/arm/mach-s3c24xx/common.h new file mode 100644 index 0000000..c2f596e --- /dev/null +++ b/arch/arm/mach-s3c24xx/common.h @@ -0,0 +1,18 @@ +/* + * Copyright (c) 2012 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Common Header for S3C24XX SoCs + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ARCH_ARM_MACH_S3C24XX_COMMON_H +#define __ARCH_ARM_MACH_S3C24XX_COMMON_H __FILE__ + +void s3c2410_restart(char mode, const char *cmd); +void s3c244x_restart(char mode, const char *cmd); + +#endif /* __ARCH_ARM_MACH_S3C24XX_COMMON_H */ -- cgit v0.10.2 From 98d5561bfbc3c7a53d6abc1812a2bd5344d36fa3 Mon Sep 17 00:00:00 2001 From: majianpeng Date: Mon, 2 Apr 2012 09:48:37 +1000 Subject: md/linear: If md_integrity_register() fails, linear_run() must free the mem. Signed-off-by: majianpeng Signed-off-by: NeilBrown diff --git a/drivers/md/linear.c b/drivers/md/linear.c index b0fcc7d..fa211d8 100644 --- a/drivers/md/linear.c +++ b/drivers/md/linear.c @@ -198,6 +198,7 @@ out: static int linear_run (struct mddev *mddev) { struct linear_conf *conf; + int ret; if (md_check_no_bitmap(mddev)) return -EINVAL; @@ -211,7 +212,13 @@ static int linear_run (struct mddev *mddev) blk_queue_merge_bvec(mddev->queue, linear_mergeable_bvec); mddev->queue->backing_dev_info.congested_fn = linear_congested; mddev->queue->backing_dev_info.congested_data = mddev; - return md_integrity_register(mddev); + + ret = md_integrity_register(mddev); + if (ret) { + kfree(conf); + mddev->private = NULL; + } + return ret; } static int linear_add(struct mddev *mddev, struct md_rdev *rdev) -- cgit v0.10.2 From 0366ef847581d692e197b88825867ca9ee00e358 Mon Sep 17 00:00:00 2001 From: majianpeng Date: Mon, 2 Apr 2012 09:48:37 +1000 Subject: md/raid0: If md_integrity_register() fails, raid0_run() must free the mem. Signed-off-by: majianpeng Signed-off-by: NeilBrown diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index 6f31f55..c980945 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -407,6 +407,8 @@ static sector_t raid0_size(struct mddev *mddev, sector_t sectors, int raid_disks return array_sectors; } +static int raid0_stop(struct mddev *mddev); + static int raid0_run(struct mddev *mddev) { struct r0conf *conf; @@ -454,7 +456,12 @@ static int raid0_run(struct mddev *mddev) blk_queue_merge_bvec(mddev->queue, raid0_mergeable_bvec); dump_zones(mddev); - return md_integrity_register(mddev); + + ret = md_integrity_register(mddev); + if (ret) + raid0_stop(mddev); + + return ret; } static int raid0_stop(struct mddev *mddev) -- cgit v0.10.2 From 5220ea1e640869e70f894837678315c878c651fd Mon Sep 17 00:00:00 2001 From: majianpeng Date: Mon, 2 Apr 2012 09:48:38 +1000 Subject: md/raid1: If md_integrity_register() failed,run() must free the mem Signed-off-by: majianpeng Signed-off-by: NeilBrown diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 4a40a20..2424408 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -2636,11 +2636,13 @@ static struct r1conf *setup_conf(struct mddev *mddev) return ERR_PTR(err); } +static int stop(struct mddev *mddev); static int run(struct mddev *mddev) { struct r1conf *conf; int i; struct md_rdev *rdev; + int ret; if (mddev->level != 1) { printk(KERN_ERR "md/raid1:%s: raid level not set to mirroring (%d)\n", @@ -2705,7 +2707,11 @@ static int run(struct mddev *mddev) mddev->queue->backing_dev_info.congested_data = mddev; blk_queue_merge_bvec(mddev->queue, raid1_mergeable_bvec); } - return md_integrity_register(mddev); + + ret = md_integrity_register(mddev); + if (ret) + stop(mddev); + return ret; } static int stop(struct mddev *mddev) -- cgit v0.10.2 From 3f8c91a7398b9266fbe7abcbe4bd5dffef907643 Mon Sep 17 00:00:00 2001 From: Andreas Mohr Date: Sun, 1 Apr 2012 12:35:00 +0000 Subject: via-rhine: fix wait-bit inversion. Bug appeared in a384a33bb1c9ec2d99db2046b41f57023fa7d77b ("via-rhine: RHINE_WAIT_FOR macro removal). It can be noticed during suspend/resume. Signed-off-by: Andreas Mohr Acked-by: Francois Romieu Cc: David Lv Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/via/via-rhine.c b/drivers/net/ethernet/via/via-rhine.c index 39b8cf3..fcfa01f 100644 --- a/drivers/net/ethernet/via/via-rhine.c +++ b/drivers/net/ethernet/via/via-rhine.c @@ -503,30 +503,32 @@ static int rhine_vlan_rx_add_vid(struct net_device *dev, unsigned short vid); static int rhine_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid); static void rhine_restart_tx(struct net_device *dev); -static void rhine_wait_bit(struct rhine_private *rp, u8 reg, u8 mask, bool high) +static void rhine_wait_bit(struct rhine_private *rp, u8 reg, u8 mask, bool low) { void __iomem *ioaddr = rp->base; int i; for (i = 0; i < 1024; i++) { - if (high ^ !!(ioread8(ioaddr + reg) & mask)) + bool has_mask_bits = !!(ioread8(ioaddr + reg) & mask); + + if (low ^ has_mask_bits) break; udelay(10); } if (i > 64) { netif_dbg(rp, hw, rp->dev, "%s bit wait (%02x/%02x) cycle " - "count: %04d\n", high ? "high" : "low", reg, mask, i); + "count: %04d\n", low ? "low" : "high", reg, mask, i); } } static void rhine_wait_bit_high(struct rhine_private *rp, u8 reg, u8 mask) { - rhine_wait_bit(rp, reg, mask, true); + rhine_wait_bit(rp, reg, mask, false); } static void rhine_wait_bit_low(struct rhine_private *rp, u8 reg, u8 mask) { - rhine_wait_bit(rp, reg, mask, false); + rhine_wait_bit(rp, reg, mask, true); } static u32 rhine_get_events(struct rhine_private *rp) -- cgit v0.10.2 From acc656323ab904803393acefdc8e1b78cde752e5 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Fri, 30 Mar 2012 01:01:46 +0000 Subject: rionet: fix page allocation order of rionet_active rionet_active is allocated from the page allocator and the allocation order is calculated on the assumption that the page size is 4KB, so it wastes memory on more than 4K page systems. Signed-off-by: Akinobu Mita Cc: Matt Porter Cc: Alexandre Bounine Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller diff --git a/drivers/net/rionet.c b/drivers/net/rionet.c index a57f057..91d2588 100644 --- a/drivers/net/rionet.c +++ b/drivers/net/rionet.c @@ -375,8 +375,8 @@ static void rionet_remove(struct rio_dev *rdev) struct net_device *ndev = rio_get_drvdata(rdev); struct rionet_peer *peer, *tmp; - free_pages((unsigned long)rionet_active, rdev->net->hport->sys_size ? - __fls(sizeof(void *)) + 4 : 0); + free_pages((unsigned long)rionet_active, get_order(sizeof(void *) * + RIO_MAX_ROUTE_ENTRIES(rdev->net->hport->sys_size))); unregister_netdev(ndev); free_netdev(ndev); @@ -432,15 +432,16 @@ static int rionet_setup_netdev(struct rio_mport *mport, struct net_device *ndev) int rc = 0; struct rionet_private *rnet; u16 device_id; + const size_t rionet_active_bytes = sizeof(void *) * + RIO_MAX_ROUTE_ENTRIES(mport->sys_size); rionet_active = (struct rio_dev **)__get_free_pages(GFP_KERNEL, - mport->sys_size ? __fls(sizeof(void *)) + 4 : 0); + get_order(rionet_active_bytes)); if (!rionet_active) { rc = -ENOMEM; goto out; } - memset((void *)rionet_active, 0, sizeof(void *) * - RIO_MAX_ROUTE_ENTRIES(mport->sys_size)); + memset((void *)rionet_active, 0, rionet_active_bytes); /* Set up private area */ rnet = netdev_priv(ndev); -- cgit v0.10.2 From 6bafd6436e99d08e8def37ae9f790e1aff871bae Mon Sep 17 00:00:00 2001 From: huajun li Date: Fri, 30 Mar 2012 00:11:05 +0000 Subject: usb/rtl8150 : Remove duplicated definitions There exist duplicated macro definitions in rtl8150.c, remove them. Signed-off-by: Huajun Li Signed-off-by: David S. Miller diff --git a/drivers/net/usb/rtl8150.c b/drivers/net/usb/rtl8150.c index 6dda2fe..d363b31 100644 --- a/drivers/net/usb/rtl8150.c +++ b/drivers/net/usb/rtl8150.c @@ -85,32 +85,6 @@ #define INT_CRERR_CNT 0x06 #define INT_COL_CNT 0x07 -/* Transmit status register errors */ -#define TSR_ECOL (1<<5) -#define TSR_LCOL (1<<4) -#define TSR_LOSS_CRS (1<<3) -#define TSR_JBR (1<<2) -#define TSR_ERRORS (TSR_ECOL | TSR_LCOL | TSR_LOSS_CRS | TSR_JBR) -/* Receive status register errors */ -#define RSR_CRC (1<<2) -#define RSR_FAE (1<<1) -#define RSR_ERRORS (RSR_CRC | RSR_FAE) - -/* Media status register definitions */ -#define MSR_DUPLEX (1<<4) -#define MSR_SPEED (1<<3) -#define MSR_LINK (1<<2) - -/* Interrupt pipe data */ -#define INT_TSR 0x00 -#define INT_RSR 0x01 -#define INT_MSR 0x02 -#define INT_WAKSR 0x03 -#define INT_TXOK_CNT 0x04 -#define INT_RXLOST_CNT 0x05 -#define INT_CRERR_CNT 0x06 -#define INT_COL_CNT 0x07 - #define RTL8150_MTU 1540 #define RTL8150_TX_TIMEOUT (HZ) -- cgit v0.10.2 From 10b9194f959608368ed89df1937f17cfe6bd6d84 Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Thu, 29 Mar 2012 19:32:08 +0000 Subject: net: sh_eth: fix endian check for architecture independent SuperH has the "CONFIG_CPU_LITTLE_ENDIAN" and the "__LITTLE_ENDIAN__". But, other architecture doesn't have them. So, this patch fixes it. Signed-off-by: Yoshihiro Shimoda Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index 8bdf070..d63e09b 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -804,7 +804,7 @@ static int sh_eth_dev_init(struct net_device *ndev) /* all sh_eth int mask */ sh_eth_write(ndev, 0, EESIPR); -#if defined(__LITTLE_ENDIAN__) +#if defined(__LITTLE_ENDIAN) if (mdp->cd->hw_swap) sh_eth_write(ndev, EDMR_EL, EDMR); else diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h index e66de18..0fa14afc 100644 --- a/drivers/net/ethernet/renesas/sh_eth.h +++ b/drivers/net/ethernet/renesas/sh_eth.h @@ -693,7 +693,7 @@ enum TSU_FWSLC_BIT { */ struct sh_eth_txdesc { u32 status; /* TD0 */ -#if defined(CONFIG_CPU_LITTLE_ENDIAN) +#if defined(__LITTLE_ENDIAN) u16 pad0; /* TD1 */ u16 buffer_length; /* TD1 */ #else @@ -710,7 +710,7 @@ struct sh_eth_txdesc { */ struct sh_eth_rxdesc { u32 status; /* RD0 */ -#if defined(CONFIG_CPU_LITTLE_ENDIAN) +#if defined(__LITTLE_ENDIAN) u16 frame_length; /* RD1 */ u16 buffer_length; /* RD1 */ #else -- cgit v0.10.2 From 78fb72f7936c01d5b426c03a691eca082b03f2b9 Mon Sep 17 00:00:00 2001 From: Rabin Vincent Date: Thu, 29 Mar 2012 07:15:15 +0000 Subject: net: usb: cdc_eem: fix mtu Make CDC EEM recalculate the hard_mtu after adjusting the hard_header_len. Without this, usbnet adjusts the MTU down to 1494 bytes, and the host is unable to receive standard 1500-byte frames from the device. Tested with the Linux USB Ethernet gadget. Cc: Oliver Neukum Signed-off-by: Rabin Vincent Signed-off-by: David S. Miller diff --git a/drivers/net/usb/cdc_eem.c b/drivers/net/usb/cdc_eem.c index 439690b..685a4e2 100644 --- a/drivers/net/usb/cdc_eem.c +++ b/drivers/net/usb/cdc_eem.c @@ -93,6 +93,7 @@ static int eem_bind(struct usbnet *dev, struct usb_interface *intf) /* no jumbogram (16K) support for now */ dev->net->hard_header_len += EEM_HEAD + ETH_FCS_LEN; + dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len; return 0; } -- cgit v0.10.2 From 059378e3ff36094dccdd55600c3ad67a88c302aa Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Fri, 30 Mar 2012 10:05:00 +0000 Subject: powerpc: Mark const init data with __initconst instead of __initdata MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit As long as there is no other non-const variable marked __initdata in the same compilation unit it doesn't hurt. If there were one however compilation would fail with error: $variablename causes a section type conflict because a section containing const variables is marked read only and so cannot contain non-const variables. Signed-off-by: Uwe Kleine-König Cc: Josh Boyer Cc: Matt Porter Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Anatolij Gustschin Cc: Kumar Gala Cc: Arnd Bergmann Cc: linuxppc-dev@lists.ozlabs.org Cc: cbe-oss-dev@lists.ozlabs.org Signed-off-by: Benjamin Herrenschmidt diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pci.c b/arch/powerpc/platforms/52xx/mpc52xx_pci.c index bfb11e0..e2d401a 100644 --- a/arch/powerpc/platforms/52xx/mpc52xx_pci.c +++ b/arch/powerpc/platforms/52xx/mpc52xx_pci.c @@ -93,7 +93,7 @@ struct mpc52xx_pci { }; /* MPC5200 device tree match tables */ -const struct of_device_id mpc52xx_pci_ids[] __initdata = { +const struct of_device_id mpc52xx_pci_ids[] __initconst = { { .type = "pci", .compatible = "fsl,mpc5200-pci", }, { .type = "pci", .compatible = "mpc5200-pci", }, {} diff --git a/arch/powerpc/platforms/cell/qpace_setup.c b/arch/powerpc/platforms/cell/qpace_setup.c index 7f9b674..6e3409d 100644 --- a/arch/powerpc/platforms/cell/qpace_setup.c +++ b/arch/powerpc/platforms/cell/qpace_setup.c @@ -61,7 +61,7 @@ static void qpace_progress(char *s, unsigned short hex) printk("*** %04x : %s\n", hex, s ? s : ""); } -static const struct of_device_id qpace_bus_ids[] __initdata = { +static const struct of_device_id qpace_bus_ids[] __initconst = { { .type = "soc", }, { .compatible = "soc", }, { .type = "spider", }, diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c index fa3e294..4ab0876 100644 --- a/arch/powerpc/platforms/cell/setup.c +++ b/arch/powerpc/platforms/cell/setup.c @@ -140,7 +140,7 @@ static int __devinit cell_setup_phb(struct pci_controller *phb) return 0; } -static const struct of_device_id cell_bus_ids[] __initdata = { +static const struct of_device_id cell_bus_ids[] __initconst = { { .type = "soc", }, { .compatible = "soc", }, { .type = "spider", }, -- cgit v0.10.2 From cad3c8346b94edd68e4b9c2c0056a5f61411af1a Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Fri, 30 Mar 2012 14:01:07 +0000 Subject: powerpc: Fix fallout from system.h split up Signed-off-by: Stephen Rothwell Signed-off-by: Benjamin Herrenschmidt diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c index cfe7a38..18bdf74 100644 --- a/arch/powerpc/kernel/fadump.c +++ b/arch/powerpc/kernel/fadump.c @@ -40,6 +40,8 @@ #include #include #include +#include +#include static struct fw_dump fw_dump; static struct fadump_mem_struct fdm; diff --git a/arch/powerpc/kernel/kgdb.c b/arch/powerpc/kernel/kgdb.c index 76a6e40..782bd0a 100644 --- a/arch/powerpc/kernel/kgdb.c +++ b/arch/powerpc/kernel/kgdb.c @@ -24,6 +24,7 @@ #include #include #include +#include /* * This table contains the mapping between PowerPC hardware trap types, and -- cgit v0.10.2 From 95327d08fd5fc686b35ac21050a1b74f9bce3abe Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Sun, 1 Apr 2012 17:35:53 +0000 Subject: powerpc/kvm: Fallout from system.h disintegration Add a missing include to fix build Signed-off-by: Benjamin Herrenschmidt diff --git a/arch/powerpc/kvm/book3s_emulate.c b/arch/powerpc/kvm/book3s_emulate.c index f1950d1..135663a 100644 --- a/arch/powerpc/kvm/book3s_emulate.c +++ b/arch/powerpc/kvm/book3s_emulate.c @@ -21,6 +21,7 @@ #include #include #include +#include #define OP_19_XOP_RFID 18 #define OP_19_XOP_RFI 50 diff --git a/arch/powerpc/kvm/book3s_paired_singles.c b/arch/powerpc/kvm/book3s_paired_singles.c index e70ef2d..a59a25a 100644 --- a/arch/powerpc/kvm/book3s_paired_singles.c +++ b/arch/powerpc/kvm/book3s_paired_singles.c @@ -24,6 +24,7 @@ #include #include #include +#include #include /* #define DEBUG */ diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c index 7340e10..642d885 100644 --- a/arch/powerpc/kvm/book3s_pr.c +++ b/arch/powerpc/kvm/book3s_pr.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include #include -- cgit v0.10.2 From 37ef9bd48af6ab9a3d1fd28df4f929abc19f2cc3 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Wed, 28 Mar 2012 12:20:57 +0000 Subject: powerpc/eeh: Remove eeh_event_handler()->daemonize() daemonize() is only needed when a user-space task does kernel_thread(). eeh_event_handler() thread is created by the worker kthread, and thus it doesn't need the soon-to-be-deprecated daemonize(). Signed-off-by: Oleg Nesterov Acked-by: Linas Vepstas Acked-by: Tejun Heo Acked-by: Matt Fleming Signed-off-by: Andrew Morton Signed-off-by: Benjamin Herrenschmidt diff --git a/arch/powerpc/platforms/pseries/eeh_event.c b/arch/powerpc/platforms/pseries/eeh_event.c index 4a47525..92dd84c 100644 --- a/arch/powerpc/platforms/pseries/eeh_event.c +++ b/arch/powerpc/platforms/pseries/eeh_event.c @@ -59,7 +59,7 @@ static int eeh_event_handler(void * dummy) struct eeh_event *event; struct eeh_dev *edev; - daemonize("eehd"); + set_task_comm(current, "eehd"); set_current_state(TASK_INTERRUPTIBLE); spin_lock_irqsave(&eeh_eventlist_lock, flags); -- cgit v0.10.2 From 9b218f63e50e590fe0c7724a0838d7eaa6dae5ce Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Wed, 28 Mar 2012 12:20:58 +0000 Subject: powerpc/eeh: Fix use of set_current_state() in eeh event handling set_current_state() wart That set_current_state() won't work very well: the subsequent mutex_lock() might flip the task back into TASK_RUNNING. Attempt to put it somewhere where it might have been meant to be, and attempt to describe why it might have been added. Signed-off-by: Andrew Morton Signed-off-by: Benjamin Herrenschmidt diff --git a/arch/powerpc/platforms/pseries/eeh_event.c b/arch/powerpc/platforms/pseries/eeh_event.c index 92dd84c..4cb375c 100644 --- a/arch/powerpc/platforms/pseries/eeh_event.c +++ b/arch/powerpc/platforms/pseries/eeh_event.c @@ -60,7 +60,6 @@ static int eeh_event_handler(void * dummy) struct eeh_dev *edev; set_task_comm(current, "eehd"); - set_current_state(TASK_INTERRUPTIBLE); spin_lock_irqsave(&eeh_eventlist_lock, flags); event = NULL; @@ -83,6 +82,7 @@ static int eeh_event_handler(void * dummy) printk(KERN_INFO "EEH: Detected PCI bus error on device %s\n", eeh_pci_name(edev->pdev)); + set_current_state(TASK_INTERRUPTIBLE); /* Don't add to load average */ edev = handle_eeh_events(event); eeh_clear_slot(eeh_dev_to_of_node(edev), EEH_MODE_RECOVERING); -- cgit v0.10.2 From eb26e877771ece01ca755c1bb34a2636a0758223 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Tue, 20 Mar 2012 00:09:58 -0300 Subject: ARM: mach-mx35_3ds: Fix build warning due to the lack of 'const' annotation Fix the following build warning: arch/arm/mach-imx/mach-mx35_3ds.c: In function 'mx35_3ds_lcd_set_power': arch/arm/mach-imx/mach-mx35_3ds.c:112: warning: passing argument 2 of 'gpiochip_find' from incompatible pointer type include/asm-generic/gpio.h:145: note: expected 'int (*)(struct gpio_chip *, const void *)' but argument is of type 'int (*)(struct gpio_chip *, void *)' Signed-off-by: Fabio Estevam Signed-off-by: Sascha Hauer diff --git a/arch/arm/mach-imx/mach-mx35_3ds.c b/arch/arm/mach-imx/mach-mx35_3ds.c index e14291d..6ae51c6 100644 --- a/arch/arm/mach-imx/mach-mx35_3ds.c +++ b/arch/arm/mach-imx/mach-mx35_3ds.c @@ -97,7 +97,7 @@ static struct i2c_board_info __initdata i2c_devices_3ds[] = { static int lcd_power_gpio = -ENXIO; static int mc9s08dz60_gpiochip_match(struct gpio_chip *chip, - void *data) + const void *data) { return !strcmp(chip->label, data); } -- cgit v0.10.2 From 31e1a4e8b6b356bb7cc24e64d18f25e1b01e5a42 Mon Sep 17 00:00:00 2001 From: Javier Martin Date: Wed, 21 Mar 2012 16:19:41 +0100 Subject: MX2: Fix mx2_camera clock regression. The following patch breaks mx2_camera driver: http://git.linuxtv.org/media_tree.git?a=commitdiff;h=52f1a845e25dc0c6435153aca1a170e20b282429 This change fixes the problem. Signed-off-by: Javier Martin Signed-off-by: Sascha Hauer diff --git a/arch/arm/mach-imx/clock-imx27.c b/arch/arm/mach-imx/clock-imx27.c index b9a95ed..98e04f5 100644 --- a/arch/arm/mach-imx/clock-imx27.c +++ b/arch/arm/mach-imx/clock-imx27.c @@ -662,6 +662,7 @@ static struct clk_lookup lookups[] = { _REGISTER_CLOCK(NULL, "dma", dma_clk) _REGISTER_CLOCK(NULL, "rtic", rtic_clk) _REGISTER_CLOCK(NULL, "brom", brom_clk) + _REGISTER_CLOCK(NULL, "emma", emma_clk) _REGISTER_CLOCK("m2m-emmaprp.0", NULL, emma_clk) _REGISTER_CLOCK(NULL, "slcdc", slcdc_clk) _REGISTER_CLOCK("imx27-fec.0", NULL, fec_clk) -- cgit v0.10.2 From f0df87541888fe3408fa71132d2b35c575586f89 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Mon, 26 Mar 2012 15:53:57 -0300 Subject: ARM: 3ds_debugboard: Fix smsc911x driver probe Fix smsc911x id field in order to fix smsc911x driver probe error: smsc911x smsc911x.0: Failed to get supply 'vdd33a': -517 smsc911x smsc911x.0: (unregistered net_device): couldn't get regulators -517 platform smsc911x.0: Driver smsc911x requests probe deferral Signed-off-by: Fabio Estevam Signed-off-by: Sascha Hauer diff --git a/arch/arm/plat-mxc/3ds_debugboard.c b/arch/arm/plat-mxc/3ds_debugboard.c index d1e31fa..5cac2c5 100644 --- a/arch/arm/plat-mxc/3ds_debugboard.c +++ b/arch/arm/plat-mxc/3ds_debugboard.c @@ -80,7 +80,7 @@ static struct smsc911x_platform_config smsc911x_config = { static struct platform_device smsc_lan9217_device = { .name = "smsc911x", - .id = 0, + .id = -1, .dev = { .platform_data = &smsc911x_config, }, -- cgit v0.10.2 From bfb5f5530c8b3efd3f5e58ab14258bf2a9b34096 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Tue, 6 Mar 2012 10:35:53 -0300 Subject: ARM: mx35: Fix registration of camera clock Fix registration of camera clock so that mx3-camera driver can get its clock correctly. Reported-by: Alex Gershgorin Signed-off-by: Fabio Estevam Signed-off-by: Sascha Hauer diff --git a/arch/arm/mach-imx/clock-imx35.c b/arch/arm/mach-imx/clock-imx35.c index 1e279af..e56c1a8 100644 --- a/arch/arm/mach-imx/clock-imx35.c +++ b/arch/arm/mach-imx/clock-imx35.c @@ -483,7 +483,7 @@ static struct clk_lookup lookups[] = { _REGISTER_CLOCK("imx2-wdt.0", NULL, wdog_clk) _REGISTER_CLOCK(NULL, "max", max_clk) _REGISTER_CLOCK(NULL, "audmux", audmux_clk) - _REGISTER_CLOCK(NULL, "csi", csi_clk) + _REGISTER_CLOCK("mx3-camera.0", NULL, csi_clk) _REGISTER_CLOCK(NULL, "iim", iim_clk) _REGISTER_CLOCK(NULL, "gpu2d", gpu2d_clk) _REGISTER_CLOCK("mxc_nand.0", NULL, nfc_clk) -- cgit v0.10.2 From 0eb043d0eec44cd083ea6910b1db2f77eb212ebd Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Sat, 31 Mar 2012 23:41:07 -0700 Subject: Subject: [PATCH] tags.sh: Add missing quotes When $remove_structs is empty a test for empty string will turn into test -n with no arguments meaning true. Add quotes so an empty string is tested and so that make cscope works again. Reported-and-tested-by: Jike Song Reported-by: Prarit Bhargava Acked-by: Yang Bai Signed-off-by: Stephen Boyd Signed-off-by: Michal Marek diff --git a/scripts/tags.sh b/scripts/tags.sh index 0d6004e..cf7b12f 100755 --- a/scripts/tags.sh +++ b/scripts/tags.sh @@ -254,6 +254,6 @@ case "$1" in esac # Remove structure forward declarations. -if [ -n $remove_structs ]; then +if [ -n "$remove_structs" ]; then LANG=C sed -i -e '/^\([a-zA-Z_][a-zA-Z0-9_]*\)\t.*\t\/\^struct \1;.*\$\/;"\tx$/d' $1 fi -- cgit v0.10.2 From 40c61046ee3007d73f141e96aa2f3dd56ee321c6 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 2 Apr 2012 10:45:49 +0100 Subject: drm/nouveau: select POWER_SUPPLY Ben H. reported that building nouveau into the kernel and power supply as a module was broken. Just have nouveau select it, like radeon does. Reported-by: Benjamin Herrenschmidt Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/nouveau/Kconfig b/drivers/gpu/drm/nouveau/Kconfig index ca16399..97a8126 100644 --- a/drivers/gpu/drm/nouveau/Kconfig +++ b/drivers/gpu/drm/nouveau/Kconfig @@ -13,6 +13,7 @@ config DRM_NOUVEAU select ACPI_VIDEO if ACPI && X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL && INPUT select ACPI_WMI if ACPI select MXM_WMI if ACPI + select POWER_SUPPLY help Choose this option for open-source nVidia support. -- cgit v0.10.2 From 7bd9523969299f4c845615eade5e523f840dc34c Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Tue, 20 Mar 2012 15:58:12 +0100 Subject: ARM: at91/at91sam9x5: add clkdev entries for DMA controllers Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD diff --git a/arch/arm/mach-at91/at91sam9x5.c b/arch/arm/mach-at91/at91sam9x5.c index b6831ee..13c8cae 100644 --- a/arch/arm/mach-at91/at91sam9x5.c +++ b/arch/arm/mach-at91/at91sam9x5.c @@ -223,6 +223,8 @@ static struct clk_lookup periph_clocks_lookups[] = { CLKDEV_CON_DEV_ID("usart", "f8028000.serial", &usart3_clk), CLKDEV_CON_DEV_ID("t0_clk", "f8008000.timer", &tcb0_clk), CLKDEV_CON_DEV_ID("t0_clk", "f800c000.timer", &tcb0_clk), + CLKDEV_CON_DEV_ID("dma_clk", "ffffec00.dma-controller", &dma0_clk), + CLKDEV_CON_DEV_ID("dma_clk", "ffffee00.dma-controller", &dma1_clk), CLKDEV_CON_ID("pioA", &pioAB_clk), CLKDEV_CON_ID("pioB", &pioAB_clk), CLKDEV_CON_ID("pioC", &pioCD_clk), -- cgit v0.10.2 From ea71f98d680c9ac768a7849d26d7ce4744064510 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Mon, 2 Apr 2012 13:37:13 +1000 Subject: nouveau: Fix crash when pci_ram_rom() returns a size of 0 From b15b244d6e6e20964bd4b85306722cb60c3c0809 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Mon, 2 Apr 2012 13:28:18 +1000 Subject: Under some circumstances, pci_map_rom() can return a valid mapping but a size of 0 (if it cannot find an image in the header). This causes nouveau to try to kmalloc() a 0 sized pointer and dereference it, which crashes. Signed-off-by: Benjamin Herrenschmidt Acked-by: Ben Skeggs Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c index 637afe7..80963d0 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.c +++ b/drivers/gpu/drm/nouveau/nouveau_bios.c @@ -177,14 +177,15 @@ bios_shadow_pci(struct nvbios *bios) if (!pci_enable_rom(pdev)) { void __iomem *rom = pci_map_rom(pdev, &length); - if (rom) { + if (rom && length) { bios->data = kmalloc(length, GFP_KERNEL); if (bios->data) { memcpy_fromio(bios->data, rom, length); bios->length = length; } - pci_unmap_rom(pdev, rom); } + if (rom) + pci_unmap_rom(pdev, rom); pci_disable_rom(pdev); } -- cgit v0.10.2 From d06221c0617ab6d0bc41c4980cefdd9c8cc9a1c1 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Mon, 2 Apr 2012 13:38:19 +1000 Subject: nouveau/bios: Fix tracking of BIOS image data The code tries various methods for retreiving the BIOS data. However it doesn't clear the bios->data pointer between the iterations. In some cases, the shadow() method will fail and not update bios->data at all, which will cause us to "score" the old data and incorrectly attribute that score to the new method. This can cause double frees later when disposing of the unused data. Additionally, we were not freeing the data for methods that fail the score test (we only freed when a "best" is superseeded, not when the new method has a lower score than the exising "best"). Fix that as well. Signed-off-by: Benjamin Herrenschmidt Acked-by: Ben Skeggs Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c index 80963d0..1947d61 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.c +++ b/drivers/gpu/drm/nouveau/nouveau_bios.c @@ -273,6 +273,7 @@ bios_shadow(struct drm_device *dev) mthd->score = score_vbios(bios, mthd->rw); mthd->size = bios->length; mthd->data = bios->data; + bios->data = NULL; } while (mthd->score != 3 && (++mthd)->shadow); mthd = shadow_methods; @@ -281,7 +282,8 @@ bios_shadow(struct drm_device *dev) if (mthd->score > best->score) { kfree(best->data); best = mthd; - } + } else + kfree(mthd->data); } while ((++mthd)->shadow); if (best->score) { -- cgit v0.10.2 From 402976fe51b2d1a58a29ba06fa1ca5ace3a4cdcd Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 29 Mar 2012 19:04:08 -0400 Subject: drm/radeon/kms: fix fans after resume MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On pre-R600 asics, the SpeedFanControl table is not executed as part of ASIC_Init as it is on newer asics. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=29412 Signed-off-by: Alex Deucher Reviewed-by: Michel Dänzer Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/atom.c b/drivers/gpu/drm/radeon/atom.c index d1bd239..5ce9bf5 100644 --- a/drivers/gpu/drm/radeon/atom.c +++ b/drivers/gpu/drm/radeon/atom.c @@ -1306,8 +1306,11 @@ struct atom_context *atom_parse(struct card_info *card, void *bios) int atom_asic_init(struct atom_context *ctx) { + struct radeon_device *rdev = ctx->card->dev->dev_private; int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR); uint32_t ps[16]; + int ret; + memset(ps, 0, 64); ps[0] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFSCLK_PTR)); @@ -1317,7 +1320,17 @@ int atom_asic_init(struct atom_context *ctx) if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT)) return 1; - return atom_execute_table(ctx, ATOM_CMD_INIT, ps); + ret = atom_execute_table(ctx, ATOM_CMD_INIT, ps); + if (ret) + return ret; + + memset(ps, 0, 64); + + if (rdev->family < CHIP_R600) { + if (CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_SPDFANCNTL)) + atom_execute_table(ctx, ATOM_CMD_SPDFANCNTL, ps); + } + return ret; } void atom_destroy(struct atom_context *ctx) diff --git a/drivers/gpu/drm/radeon/atom.h b/drivers/gpu/drm/radeon/atom.h index 93cfe20..25fea63 100644 --- a/drivers/gpu/drm/radeon/atom.h +++ b/drivers/gpu/drm/radeon/atom.h @@ -44,6 +44,7 @@ #define ATOM_CMD_SETSCLK 0x0A #define ATOM_CMD_SETMCLK 0x0B #define ATOM_CMD_SETPCLK 0x0C +#define ATOM_CMD_SPDFANCNTL 0x39 #define ATOM_DATA_FWI_PTR 0xC #define ATOM_DATA_IIO_PTR 0x32 -- cgit v0.10.2 From fa9e855025b19e96e493ee00de7d933a9794f742 Mon Sep 17 00:00:00 2001 From: Konstantin Khlebnikov Date: Sat, 31 Mar 2012 13:29:25 +0400 Subject: mm, drm/udl: fixup vma flags on mmap There should be VM_MIXEDMAP, not VM_PFNMAP, because udl_gem_fault() inserts pages via vm_insert_page(). Other drm/gem drivers already do this. Signed-off-by: Konstantin Khlebnikov Cc: Dave Airlie Cc: dri-devel@lists.freedesktop.org Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c index 5340c5f..5367390 100644 --- a/drivers/gpu/drm/udl/udl_drv.c +++ b/drivers/gpu/drm/udl/udl_drv.c @@ -47,7 +47,7 @@ static struct vm_operations_struct udl_gem_vm_ops = { static const struct file_operations udl_driver_fops = { .owner = THIS_MODULE, .open = drm_open, - .mmap = drm_gem_mmap, + .mmap = udl_drm_gem_mmap, .poll = drm_poll, .read = drm_read, .unlocked_ioctl = drm_ioctl, diff --git a/drivers/gpu/drm/udl/udl_drv.h b/drivers/gpu/drm/udl/udl_drv.h index 1612954..96820d0 100644 --- a/drivers/gpu/drm/udl/udl_drv.h +++ b/drivers/gpu/drm/udl/udl_drv.h @@ -121,6 +121,7 @@ struct udl_gem_object *udl_gem_alloc_object(struct drm_device *dev, int udl_gem_vmap(struct udl_gem_object *obj); void udl_gem_vunmap(struct udl_gem_object *obj); +int udl_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); int udl_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf); int udl_handle_damage(struct udl_framebuffer *fb, int x, int y, diff --git a/drivers/gpu/drm/udl/udl_gem.c b/drivers/gpu/drm/udl/udl_gem.c index 852642d..92f19ef 100644 --- a/drivers/gpu/drm/udl/udl_gem.c +++ b/drivers/gpu/drm/udl/udl_gem.c @@ -71,6 +71,20 @@ int udl_dumb_destroy(struct drm_file *file, struct drm_device *dev, return drm_gem_handle_delete(file, handle); } +int udl_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma) +{ + int ret; + + ret = drm_gem_mmap(filp, vma); + if (ret) + return ret; + + vma->vm_flags &= ~VM_PFNMAP; + vma->vm_flags |= VM_MIXEDMAP; + + return ret; +} + int udl_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { struct udl_gem_object *obj = to_udl_bo(vma->vm_private_data); -- cgit v0.10.2 From e199fd422420d1620cf64fd9bdd4ff8bc255cc76 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Michel=20D=C3=A4nzer?= Date: Thu, 29 Mar 2012 16:47:43 +0200 Subject: drm/radeon: Don't dereference possibly-NULL pointer. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Reported-by: Dan Carpenter Signed-off-by: Michel Dänzer Reviewed-by: Alex Deucher Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c index 6f70158..df6a4db 100644 --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -241,7 +241,8 @@ int radeon_bo_pin_restricted(struct radeon_bo *bo, u32 domain, u64 max_offset, domain_start = bo->rdev->mc.vram_start; else domain_start = bo->rdev->mc.gtt_start; - WARN_ON_ONCE((*gpu_addr - domain_start) > max_offset); + WARN_ON_ONCE(max_offset < + (radeon_bo_gpu_offset(bo) - domain_start)); } return 0; -- cgit v0.10.2 From 0fc7374bb5df938ef3d386e48ac9797d7651e9cc Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Mon, 2 Apr 2012 12:50:54 +0200 Subject: microblaze: Do not use tlb_skip in early_printk tlb_skip is valid only for MMU system. Signed-off-by: Michal Simek diff --git a/arch/microblaze/kernel/early_printk.c b/arch/microblaze/kernel/early_printk.c index ec48587..aba1f9a 100644 --- a/arch/microblaze/kernel/early_printk.c +++ b/arch/microblaze/kernel/early_printk.c @@ -176,6 +176,7 @@ void __init remap_early_printk(void) base_addr = (u32) ioremap(base_addr, PAGE_SIZE); printk(KERN_CONT "0x%x\n", base_addr); +#ifdef CONFIG_MMU /* * Early console is on the top of skipped TLB entries * decrease tlb_skip size ensure that hardcoded TLB entry will be @@ -189,6 +190,7 @@ void __init remap_early_printk(void) * cmp rX, orig_base_addr */ tlb_skip -= 1; +#endif } void __init disable_early_printk(void) -- cgit v0.10.2 From 0dd90aa9d6222e12201f05c0058e8741b7f66474 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Mon, 2 Apr 2012 12:55:47 +0200 Subject: microblaze: Fix ret_from_fork declaration ret_from_fork is used by noMMU system too. It should be the part of patch "Disintegrate asm/system.h for Microblaze" (sha1: c40d04df152a1111c5bbcb632278394dabd2b73d) Signed-off-by: Michal Simek diff --git a/arch/microblaze/include/asm/processor.h b/arch/microblaze/include/asm/processor.h index 510a8e1..bffb545 100644 --- a/arch/microblaze/include/asm/processor.h +++ b/arch/microblaze/include/asm/processor.h @@ -31,6 +31,8 @@ extern const struct seq_operations cpuinfo_op; /* Do necessary setup to start up a newly executed thread. */ void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long usp); +extern void ret_from_fork(void); + # endif /* __ASSEMBLY__ */ # ifndef CONFIG_MMU @@ -143,8 +145,6 @@ static inline void exit_thread(void) unsigned long get_wchan(struct task_struct *p); -extern void ret_from_fork(void); - /* The size allocated for kernel stacks. This _must_ be a power of two! */ # define KERNEL_STACK_SIZE 0x2000 -- cgit v0.10.2 From dba69d1092e291e257fb5673a3ad0e4c87878ebc Mon Sep 17 00:00:00 2001 From: Marcelo Tosatti Date: Sun, 1 Apr 2012 13:53:36 -0300 Subject: x86, kvm: Call restore_sched_clock_state() only after %gs is initialized s2ram broke due to this KVM commit: b74f05d61b73 x86: kvmclock: abstract save/restore sched_clock_state restore_sched_clock_state() methods use percpu data, therefore they must run after %gs is initialized, but before mtrr_bp_restore() (due to lockstat using sched_clock). Move it to the correct place. Reported-and-tested-by: Konstantin Khlebnikov Signed-off-by: Marcelo Tosatti Cc: Avi Kivity Signed-off-by: Ingo Molnar diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c index 4793683..218cdb1 100644 --- a/arch/x86/power/cpu.c +++ b/arch/x86/power/cpu.c @@ -225,13 +225,13 @@ static void __restore_processor_state(struct saved_context *ctxt) fix_processor_context(); do_fpu_end(); + x86_platform.restore_sched_clock_state(); mtrr_bp_restore(); } /* Needed by apm.c */ void restore_processor_state(void) { - x86_platform.restore_sched_clock_state(); __restore_processor_state(&saved_context); } #ifdef CONFIG_X86_32 -- cgit v0.10.2 From cc22a938fc1db0c8ef5e693a69b159c4b851dab3 Mon Sep 17 00:00:00 2001 From: Eugeni Dodonov Date: Thu, 29 Mar 2012 20:55:48 -0300 Subject: drm/i915: add Ivy Bridge GT2 Server entries This adds PCI ID for IVB GT2 server variant which we were missing. Signed-off-by: Eugeni Dodonov [danvet: fix up conflict because the patch has been diffed against next. tsk.] Signed-Off-by: Daniel Vetter diff --git a/drivers/char/agp/intel-agp.h b/drivers/char/agp/intel-agp.h index 5da67f1..7ea18a5 100644 --- a/drivers/char/agp/intel-agp.h +++ b/drivers/char/agp/intel-agp.h @@ -234,6 +234,7 @@ #define PCI_DEVICE_ID_INTEL_IVYBRIDGE_M_GT2_IG 0x0166 #define PCI_DEVICE_ID_INTEL_IVYBRIDGE_S_HB 0x0158 /* Server */ #define PCI_DEVICE_ID_INTEL_IVYBRIDGE_S_GT1_IG 0x015A +#define PCI_DEVICE_ID_INTEL_IVYBRIDGE_S_GT2_IG 0x016A int intel_gmch_probe(struct pci_dev *pdev, struct agp_bridge_data *bridge); diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c index 5cf47ac..f493546 100644 --- a/drivers/char/agp/intel-gtt.c +++ b/drivers/char/agp/intel-gtt.c @@ -1459,6 +1459,8 @@ static const struct intel_gtt_driver_description { "Ivybridge", &sandybridge_gtt_driver }, { PCI_DEVICE_ID_INTEL_IVYBRIDGE_S_GT1_IG, "Ivybridge", &sandybridge_gtt_driver }, + { PCI_DEVICE_ID_INTEL_IVYBRIDGE_S_GT2_IG, + "Ivybridge", &sandybridge_gtt_driver }, { 0, NULL, NULL } }; diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index c7d689e..77afd31 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -296,6 +296,7 @@ static const struct pci_device_id pciidlist[] = { /* aka */ INTEL_VGA_DEVICE(0x0152, &intel_ivybridge_d_info), /* GT1 desktop */ INTEL_VGA_DEVICE(0x0162, &intel_ivybridge_d_info), /* GT2 desktop */ INTEL_VGA_DEVICE(0x015a, &intel_ivybridge_d_info), /* GT1 server */ + INTEL_VGA_DEVICE(0x016a, &intel_ivybridge_d_info), /* GT2 server */ {0, 0, 0} }; -- cgit v0.10.2 From 650dc07ec3b0eba8ff21da706d2b1876ada59fc3 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Mon, 2 Apr 2012 10:08:35 +0200 Subject: drm/i915: disable ppgtt on snb when dmar is enabled Totally unexpected that this regressed. Luckily it sounds like we just need to have dmar disable on the igfx, not the entire system. At least that's what a few days of testing between Tony Vroon and me indicates. Reported-by: Tony Vroon Cc: Tony Vroon Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43024 Acked-by: Chris Wilson Signed-Off-by: Daniel Vetter diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c index f493546..7f025fb 100644 --- a/drivers/char/agp/intel-gtt.c +++ b/drivers/char/agp/intel-gtt.c @@ -1190,7 +1190,6 @@ static inline int needs_idle_maps(void) { #ifdef CONFIG_INTEL_IOMMU const unsigned short gpu_devid = intel_private.pcidev->device; - extern int intel_iommu_gfx_mapped; /* Query intel_iommu to see if we need the workaround. Presumably that * was loaded first. diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 9341eb8..8a62285 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1183,6 +1183,21 @@ static bool i915_switcheroo_can_switch(struct pci_dev *pdev) return can_switch; } +static bool +intel_enable_ppgtt(struct drm_device *dev) +{ + if (i915_enable_ppgtt >= 0) + return i915_enable_ppgtt; + +#ifdef CONFIG_INTEL_IOMMU + /* Disable ppgtt on SNB if VT-d is on. */ + if (INTEL_INFO(dev)->gen == 6 && intel_iommu_gfx_mapped) + return false; +#endif + + return true; +} + static int i915_load_gem_init(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; @@ -1197,7 +1212,7 @@ static int i915_load_gem_init(struct drm_device *dev) drm_mm_init(&dev_priv->mm.stolen, 0, prealloc_size); mutex_lock(&dev->struct_mutex); - if (i915_enable_ppgtt && HAS_ALIASING_PPGTT(dev)) { + if (intel_enable_ppgtt(dev) && HAS_ALIASING_PPGTT(dev)) { /* PPGTT pdes are stolen from global gtt ptes, so shrink the * aperture accordingly when using aliasing ppgtt. */ gtt_size -= I915_PPGTT_PD_ENTRIES*PAGE_SIZE; diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 77afd31..19d55bc 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -107,8 +107,8 @@ MODULE_PARM_DESC(enable_hangcheck, "WARNING: Disabling this can cause system wide hangs. " "(default: true)"); -bool i915_enable_ppgtt __read_mostly = 1; -module_param_named(i915_enable_ppgtt, i915_enable_ppgtt, bool, 0600); +int i915_enable_ppgtt __read_mostly = -1; +module_param_named(i915_enable_ppgtt, i915_enable_ppgtt, int, 0600); MODULE_PARM_DESC(i915_enable_ppgtt, "Enable PPGTT (default: true)"); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 2c19227..5fabc6c 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1086,7 +1086,7 @@ extern int i915_vbt_sdvo_panel_type __read_mostly; extern int i915_enable_rc6 __read_mostly; extern int i915_enable_fbc __read_mostly; extern bool i915_enable_hangcheck __read_mostly; -extern bool i915_enable_ppgtt __read_mostly; +extern int i915_enable_ppgtt __read_mostly; extern int i915_suspend(struct drm_device *dev, pm_message_t state); extern int i915_resume(struct drm_device *dev); diff --git a/include/drm/intel-gtt.h b/include/drm/intel-gtt.h index 0a0001b..923afb5 100644 --- a/include/drm/intel-gtt.h +++ b/include/drm/intel-gtt.h @@ -44,4 +44,8 @@ void intel_gtt_insert_pages(unsigned int first_entry, unsigned int num_entries, /* flag for GFDT type */ #define AGP_USER_CACHED_MEMORY_GFDT (1 << 3) +#ifdef CONFIG_INTEL_IOMMU +extern int intel_iommu_gfx_mapped; +#endif + #endif -- cgit v0.10.2 From fd36dfb89fa080255ddca0ddbab62b64c9288e78 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Mon, 2 Apr 2012 10:39:43 -0300 Subject: ARM: mx53ard: Fix smsc911x driver probe Fix smsc911x driver probe by adding a fixed dummy regulator. Signed-off-by: Fabio Estevam Signed-off-by: Sascha Hauer diff --git a/arch/arm/mach-imx/mach-mx53_ard.c b/arch/arm/mach-imx/mach-mx53_ard.c index 753f4fc..0564198 100644 --- a/arch/arm/mach-imx/mach-mx53_ard.c +++ b/arch/arm/mach-imx/mach-mx53_ard.c @@ -23,6 +23,8 @@ #include #include #include +#include +#include #include #include @@ -214,6 +216,11 @@ static int weim_cs_config(void) return 0; } +static struct regulator_consumer_supply dummy_supplies[] = { + REGULATOR_SUPPLY("vdd33a", "smsc911x"), + REGULATOR_SUPPLY("vddvario", "smsc911x"), +}; + void __init imx53_ard_common_init(void) { mxc_iomux_v3_setup_multiple_pads(mx53_ard_pads, @@ -232,6 +239,7 @@ static void __init mx53_ard_board_init(void) imx53_ard_common_init(); mx53_ard_io_init(); + regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); platform_add_devices(devices, ARRAY_SIZE(devices)); imx53_add_sdhci_esdhc_imx(0, &mx53_ard_sd1_data); -- cgit v0.10.2 From da21d4dc1795be22d244fa29ea757f3994511880 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Mon, 2 Apr 2012 10:39:44 -0300 Subject: ARM: mx31lite: Fix smsc911x driver probe Fix smsc911x driver probe by adding a fixed dummy regulator. Signed-off-by: Fabio Estevam Signed-off-by: Sascha Hauer diff --git a/arch/arm/mach-imx/mach-mx31lite.c b/arch/arm/mach-imx/mach-mx31lite.c index ef80751..0abef5f 100644 --- a/arch/arm/mach-imx/mach-mx31lite.c +++ b/arch/arm/mach-imx/mach-mx31lite.c @@ -29,6 +29,8 @@ #include #include #include +#include +#include #include #include @@ -226,6 +228,11 @@ void __init mx31lite_map_io(void) static int mx31lite_baseboard; core_param(mx31lite_baseboard, mx31lite_baseboard, int, 0444); +static struct regulator_consumer_supply dummy_supplies[] = { + REGULATOR_SUPPLY("vdd33a", "smsc911x"), + REGULATOR_SUPPLY("vddvario", "smsc911x"), +}; + static void __init mx31lite_init(void) { int ret; @@ -259,6 +266,8 @@ static void __init mx31lite_init(void) if (usbh2_pdata.otg) imx31_add_mxc_ehci_hs(2, &usbh2_pdata); + regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); + /* SMSC9117 IRQ pin */ ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_SFS6), "sms9117-irq"); if (ret) -- cgit v0.10.2 From 954c59acd3f9df6899f908004e3ff349a7cecd7b Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Mon, 2 Apr 2012 10:39:45 -0300 Subject: ARM: mx31lilly: Fix smsc911x driver probe Fix smsc911x driver probe by adding a fixed dummy regulator. Signed-off-by: Fabio Estevam Signed-off-by: Sascha Hauer diff --git a/arch/arm/mach-imx/mach-mx31lilly.c b/arch/arm/mach-imx/mach-mx31lilly.c index 02401bb..83714b0 100644 --- a/arch/arm/mach-imx/mach-mx31lilly.c +++ b/arch/arm/mach-imx/mach-mx31lilly.c @@ -34,6 +34,8 @@ #include #include #include +#include +#include #include #include @@ -242,6 +244,11 @@ static struct platform_device *devices[] __initdata = { static int mx31lilly_baseboard; core_param(mx31lilly_baseboard, mx31lilly_baseboard, int, 0444); +static struct regulator_consumer_supply dummy_supplies[] = { + REGULATOR_SUPPLY("vdd33a", "smsc911x"), + REGULATOR_SUPPLY("vddvario", "smsc911x"), +}; + static void __init mx31lilly_board_init(void) { imx31_soc_init(); @@ -280,6 +287,8 @@ static void __init mx31lilly_board_init(void) imx31_add_spi_imx1(&spi1_pdata); spi_register_board_info(&mc13783_dev, 1); + regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); + platform_add_devices(devices, ARRAY_SIZE(devices)); /* USB */ -- cgit v0.10.2 From ccdf327843d1f61ffb7463ae5cdf4ca5f09f631b Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Mon, 2 Apr 2012 10:39:46 -0300 Subject: ARM: kzm_arm11_01: Fix smsc911x driver probe Fix smsc911x driver probe by adding a fixed dummy regulator. Signed-off-by: Fabio Estevam Signed-off-by: Sascha Hauer diff --git a/arch/arm/mach-imx/mach-kzm_arm11_01.c b/arch/arm/mach-imx/mach-kzm_arm11_01.c index fc78e80..15a26e9 100644 --- a/arch/arm/mach-imx/mach-kzm_arm11_01.c +++ b/arch/arm/mach-imx/mach-kzm_arm11_01.c @@ -24,6 +24,8 @@ #include #include #include +#include +#include #include #include @@ -166,6 +168,11 @@ static struct platform_device kzm_smsc9118_device = { }, }; +static struct regulator_consumer_supply dummy_supplies[] = { + REGULATOR_SUPPLY("vdd33a", "smsc911x"), + REGULATOR_SUPPLY("vddvario", "smsc911x"), +}; + static int __init kzm_init_smsc9118(void) { /* @@ -175,6 +182,8 @@ static int __init kzm_init_smsc9118(void) gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2), "smsc9118-int"); gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2)); + regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); + return platform_device_register(&kzm_smsc9118_device); } #else -- cgit v0.10.2 From 7a4302a6a123e09b26fd7eae387e88e2d4dbc8c4 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Mon, 2 Apr 2012 10:39:47 -0300 Subject: ARM: armadillo5x0: Fix smsc911x driver probe Fix smsc911x driver probe by adding a fixed dummy regulator. Signed-off-by: Fabio Estevam Signed-off-by: Sascha Hauer diff --git a/arch/arm/mach-imx/mach-armadillo5x0.c b/arch/arm/mach-imx/mach-armadillo5x0.c index 27bc27e..c650145 100644 --- a/arch/arm/mach-imx/mach-armadillo5x0.c +++ b/arch/arm/mach-imx/mach-armadillo5x0.c @@ -38,6 +38,8 @@ #include #include #include +#include +#include #include #include @@ -479,6 +481,11 @@ static struct platform_device *devices[] __initdata = { &armadillo5x0_smc911x_device, }; +static struct regulator_consumer_supply dummy_supplies[] = { + REGULATOR_SUPPLY("vdd33a", "smsc911x"), + REGULATOR_SUPPLY("vddvario", "smsc911x"), +}; + /* * Perform board specific initializations */ @@ -489,6 +496,8 @@ static void __init armadillo5x0_init(void) mxc_iomux_setup_multiple_pins(armadillo5x0_pins, ARRAY_SIZE(armadillo5x0_pins), "armadillo5x0"); + regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); + platform_add_devices(devices, ARRAY_SIZE(devices)); imx_add_gpio_keys(&armadillo5x0_button_data); imx31_add_imx_i2c1(NULL); -- cgit v0.10.2 From 83e3fa6f0193299f8b7180db588edd5ca61a3b82 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Sun, 1 Apr 2012 16:38:37 -0400 Subject: irq_work: fix compile failure on MIPS from system.h split Builds of the MIPS platform ip32_defconfig fails as of commit 0195c00244dc ("Merge tag 'split-asm_system_h ...") because MIPS xchg() macro uses BUILD_BUG_ON and it was moved in commit b81947c646bf ("Disintegrate asm/system.h for MIPS"). The root cause is that the system.h split wasn't tested on a baseline with commit 6c03438edeb5 ("kernel.h: doesn't explicitly use bug.h, so don't include it.") Since this file uses BUG code in several other places besides the xchg call, simply make the inclusion explicit. Signed-off-by: Paul Gortmaker Acked-by: David Howells Signed-off-by: Linus Torvalds diff --git a/kernel/irq_work.c b/kernel/irq_work.c index c3c46c7..0c56d44 100644 --- a/kernel/irq_work.c +++ b/kernel/irq_work.c @@ -5,6 +5,7 @@ * context. The enqueueing is NMI-safe. */ +#include #include #include #include -- cgit v0.10.2 From 34f2c0ac111aaf090c7d2432dab532640870733a Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Sun, 1 Apr 2012 16:38:46 -0400 Subject: tile: fix multiple build failures from system.h dismantle Commit bd119c69239322caafdb64517a806037d0d0c70a "Disintegrate asm/system.h for Tile" created the asm/switch_to.h file, but did not add an include of it to all its users. Also, commit b4816afa3986704d1404fc48e931da5135820472 "Move the asm-generic/system.h xchg() implementation to asm-generic/cmpxchg.h" introduced the concept of asm/cmpxchg.h but the tile arch never got one. Fork the cmpxchg content out of the asm/atomic.h file to create one. Acked-by: David Howells Signed-off-by: Paul Gortmaker Signed-off-by: Chris Metcalf diff --git a/arch/tile/include/asm/atomic.h b/arch/tile/include/asm/atomic.h index bb696da..f246142 100644 --- a/arch/tile/include/asm/atomic.h +++ b/arch/tile/include/asm/atomic.h @@ -17,6 +17,8 @@ #ifndef _ASM_TILE_ATOMIC_H #define _ASM_TILE_ATOMIC_H +#include + #ifndef __ASSEMBLY__ #include @@ -121,54 +123,6 @@ static inline int atomic_read(const atomic_t *v) */ #define atomic_add_negative(i, v) (atomic_add_return((i), (v)) < 0) -/* Nonexistent functions intended to cause link errors. */ -extern unsigned long __xchg_called_with_bad_pointer(void); -extern unsigned long __cmpxchg_called_with_bad_pointer(void); - -#define xchg(ptr, x) \ - ({ \ - typeof(*(ptr)) __x; \ - switch (sizeof(*(ptr))) { \ - case 4: \ - __x = (typeof(__x))(typeof(__x-__x))atomic_xchg( \ - (atomic_t *)(ptr), \ - (u32)(typeof((x)-(x)))(x)); \ - break; \ - case 8: \ - __x = (typeof(__x))(typeof(__x-__x))atomic64_xchg( \ - (atomic64_t *)(ptr), \ - (u64)(typeof((x)-(x)))(x)); \ - break; \ - default: \ - __xchg_called_with_bad_pointer(); \ - } \ - __x; \ - }) - -#define cmpxchg(ptr, o, n) \ - ({ \ - typeof(*(ptr)) __x; \ - switch (sizeof(*(ptr))) { \ - case 4: \ - __x = (typeof(__x))(typeof(__x-__x))atomic_cmpxchg( \ - (atomic_t *)(ptr), \ - (u32)(typeof((o)-(o)))(o), \ - (u32)(typeof((n)-(n)))(n)); \ - break; \ - case 8: \ - __x = (typeof(__x))(typeof(__x-__x))atomic64_cmpxchg( \ - (atomic64_t *)(ptr), \ - (u64)(typeof((o)-(o)))(o), \ - (u64)(typeof((n)-(n)))(n)); \ - break; \ - default: \ - __cmpxchg_called_with_bad_pointer(); \ - } \ - __x; \ - }) - -#define tas(ptr) (xchg((ptr), 1)) - #endif /* __ASSEMBLY__ */ #ifndef __tilegx__ diff --git a/arch/tile/include/asm/cmpxchg.h b/arch/tile/include/asm/cmpxchg.h new file mode 100644 index 0000000..276f067 --- /dev/null +++ b/arch/tile/include/asm/cmpxchg.h @@ -0,0 +1,73 @@ +/* + * cmpxchg.h -- forked from asm/atomic.h with this copyright: + * + * Copyright 2010 Tilera Corporation. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, version 2. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for + * more details. + * + */ + +#ifndef _ASM_TILE_CMPXCHG_H +#define _ASM_TILE_CMPXCHG_H + +#ifndef __ASSEMBLY__ + +/* Nonexistent functions intended to cause link errors. */ +extern unsigned long __xchg_called_with_bad_pointer(void); +extern unsigned long __cmpxchg_called_with_bad_pointer(void); + +#define xchg(ptr, x) \ + ({ \ + typeof(*(ptr)) __x; \ + switch (sizeof(*(ptr))) { \ + case 4: \ + __x = (typeof(__x))(typeof(__x-__x))atomic_xchg( \ + (atomic_t *)(ptr), \ + (u32)(typeof((x)-(x)))(x)); \ + break; \ + case 8: \ + __x = (typeof(__x))(typeof(__x-__x))atomic64_xchg( \ + (atomic64_t *)(ptr), \ + (u64)(typeof((x)-(x)))(x)); \ + break; \ + default: \ + __xchg_called_with_bad_pointer(); \ + } \ + __x; \ + }) + +#define cmpxchg(ptr, o, n) \ + ({ \ + typeof(*(ptr)) __x; \ + switch (sizeof(*(ptr))) { \ + case 4: \ + __x = (typeof(__x))(typeof(__x-__x))atomic_cmpxchg( \ + (atomic_t *)(ptr), \ + (u32)(typeof((o)-(o)))(o), \ + (u32)(typeof((n)-(n)))(n)); \ + break; \ + case 8: \ + __x = (typeof(__x))(typeof(__x-__x))atomic64_cmpxchg( \ + (atomic64_t *)(ptr), \ + (u64)(typeof((o)-(o)))(o), \ + (u64)(typeof((n)-(n)))(n)); \ + break; \ + default: \ + __cmpxchg_called_with_bad_pointer(); \ + } \ + __x; \ + }) + +#define tas(ptr) (xchg((ptr), 1)) + +#endif /* __ASSEMBLY__ */ + +#endif /* _ASM_TILE_CMPXCHG_H */ diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c index 30caeca..ee01b1c 100644 --- a/arch/tile/kernel/process.c +++ b/arch/tile/kernel/process.c @@ -28,6 +28,7 @@ #include #include #include +#include #include #include #include diff --git a/arch/tile/kernel/stack.c b/arch/tile/kernel/stack.c index 37ee4d0..0be6b01 100644 --- a/arch/tile/kernel/stack.c +++ b/arch/tile/kernel/stack.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include #include -- cgit v0.10.2 From 8d6951439ef524683057251f1231df232046b6b6 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Tue, 27 Mar 2012 13:47:57 -0400 Subject: arch/tile/Kconfig: remove pointless "!M386" test. Looks like a cut and paste bug from the x86 version. Signed-off-by: Chris Metcalf diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig index 11270ca..30413c1 100644 --- a/arch/tile/Kconfig +++ b/arch/tile/Kconfig @@ -12,7 +12,7 @@ config TILE select GENERIC_PENDING_IRQ if SMP select GENERIC_IRQ_SHOW select SYS_HYPERVISOR - select ARCH_HAVE_NMI_SAFE_CMPXCHG if !M386 + select ARCH_HAVE_NMI_SAFE_CMPXCHG # FIXME: investigate whether we need/want these options. # select HAVE_IOREMAP_PROT -- cgit v0.10.2 From 3d1e8a81cc81e62d13731e48c40760e60f31b0d5 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Tue, 27 Mar 2012 13:53:30 -0400 Subject: arch/tile/Kconfig: rename tile_defconfig to tilepro_defconfig We switched to using "tilepro" for the 32-bit stuff a while ago, but missed this one usage. Signed-off-by: Chris Metcalf diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig index 30413c1..30393aa 100644 --- a/arch/tile/Kconfig +++ b/arch/tile/Kconfig @@ -69,6 +69,9 @@ config ARCH_PHYS_ADDR_T_64BIT config ARCH_DMA_ADDR_T_64BIT def_bool y +config NEED_DMA_MAP_STATE + def_bool y + config LOCKDEP_SUPPORT def_bool y @@ -118,7 +121,7 @@ config 64BIT config ARCH_DEFCONFIG string - default "arch/tile/configs/tile_defconfig" if !TILEGX + default "arch/tile/configs/tilepro_defconfig" if !TILEGX default "arch/tile/configs/tilegx_defconfig" if TILEGX source "init/Kconfig" -- cgit v0.10.2 From 884197f7ea93dc2faf399060dc29cb0dbbda6937 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Tue, 27 Mar 2012 13:56:04 -0400 Subject: arch/tile/Kconfig: don't specify CONFIG_PAGE_OFFSET for 64-bit builds It's fixed at half the VA space and there's no point in configuring it. Signed-off-by: Chris Metcalf diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig index 30393aa..96033e2 100644 --- a/arch/tile/Kconfig +++ b/arch/tile/Kconfig @@ -243,6 +243,7 @@ endchoice config PAGE_OFFSET hex + depends on !64BIT default 0xF0000000 if VMSPLIT_3_75G default 0xE0000000 if VMSPLIT_3_5G default 0xB0000000 if VMSPLIT_2_75G -- cgit v0.10.2 From 327e8b6b25588ab906856a4e506b28c59422f11b Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Tue, 27 Mar 2012 14:04:57 -0400 Subject: arch/tile: fix typo in We aren't yet using this definition in the kernel, but fix it up before someone goes looking for it. Signed-off-by: Chris Metcalf diff --git a/arch/tile/include/arch/spr_def.h b/arch/tile/include/arch/spr_def.h index f548efe..d6ba449 100644 --- a/arch/tile/include/arch/spr_def.h +++ b/arch/tile/include/arch/spr_def.h @@ -60,8 +60,8 @@ _concat4(SPR_IPI_EVENT_, CONFIG_KERNEL_PL,,) #define SPR_IPI_EVENT_RESET_K \ _concat4(SPR_IPI_EVENT_RESET_, CONFIG_KERNEL_PL,,) -#define SPR_IPI_MASK_SET_K \ - _concat4(SPR_IPI_MASK_SET_, CONFIG_KERNEL_PL,,) +#define SPR_IPI_EVENT_SET_K \ + _concat4(SPR_IPI_EVENT_SET_, CONFIG_KERNEL_PL,,) #define INT_IPI_K \ _concat4(INT_IPI_, CONFIG_KERNEL_PL,,) -- cgit v0.10.2 From 07feea877d18453bbe4ad47fe2a365eebf56a7af Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Tue, 27 Mar 2012 14:10:03 -0400 Subject: arch/tile: revert comment for atomic64_add_unless(). It still returns whether @v was not @u, not the old value, unlike __atomic_add_unless(). Signed-off-by: Chris Metcalf Acked-by: Arun Sharma diff --git a/arch/tile/include/asm/atomic_32.h b/arch/tile/include/asm/atomic_32.h index 466dc4a..54d1da8 100644 --- a/arch/tile/include/asm/atomic_32.h +++ b/arch/tile/include/asm/atomic_32.h @@ -200,7 +200,7 @@ static inline u64 atomic64_add_return(u64 i, atomic64_t *v) * @u: ...unless v is equal to u. * * Atomically adds @a to @v, so long as @v was not already @u. - * Returns the old value of @v. + * Returns non-zero if @v was not @u, and zero otherwise. */ static inline u64 atomic64_add_unless(atomic64_t *v, u64 a, u64 u) { -- cgit v0.10.2 From 664c100bce0070148131f8d49518015476c03cae Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Tue, 27 Mar 2012 14:17:05 -0400 Subject: arch/tile: fix gcc 4.6 warnings in Fix some signedness and variable usage warnings in change_bit() and test_and_change_bit(). Signed-off-by: Chris Metcalf diff --git a/arch/tile/include/asm/bitops_64.h b/arch/tile/include/asm/bitops_64.h index 58d021a..60b87ee 100644 --- a/arch/tile/include/asm/bitops_64.h +++ b/arch/tile/include/asm/bitops_64.h @@ -38,10 +38,10 @@ static inline void clear_bit(unsigned nr, volatile unsigned long *addr) static inline void change_bit(unsigned nr, volatile unsigned long *addr) { - unsigned long old, mask = (1UL << (nr % BITS_PER_LONG)); - long guess, oldval; + unsigned long mask = (1UL << (nr % BITS_PER_LONG)); + unsigned long guess, oldval; addr += nr / BITS_PER_LONG; - old = *addr; + oldval = *addr; do { guess = oldval; oldval = atomic64_cmpxchg((atomic64_t *)addr, @@ -85,7 +85,7 @@ static inline int test_and_change_bit(unsigned nr, volatile unsigned long *addr) { unsigned long mask = (1UL << (nr % BITS_PER_LONG)); - long guess, oldval = *addr; + unsigned long guess, oldval; addr += nr / BITS_PER_LONG; oldval = *addr; do { -- cgit v0.10.2 From cbe224705e573cead57c4d4bed0c91efb564a344 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Tue, 27 Mar 2012 15:21:00 -0400 Subject: arch/tile: use 0 for IRQ_RESCHEDULE instead of 1 This avoids assigning IRQ 0 to PCI devices, because we've seen that doesn't always work well. Signed-off-by: Chris Metcalf diff --git a/arch/tile/include/asm/irq.h b/arch/tile/include/asm/irq.h index f80f8ce..33cff9a 100644 --- a/arch/tile/include/asm/irq.h +++ b/arch/tile/include/asm/irq.h @@ -21,7 +21,7 @@ #define NR_IRQS 32 /* IRQ numbers used for linux IPIs. */ -#define IRQ_RESCHEDULE 1 +#define IRQ_RESCHEDULE 0 #define irq_canonicalize(irq) (irq) -- cgit v0.10.2 From b287f69676a34a9fc341de4d79a9c74e1959dec6 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Thu, 29 Mar 2012 14:02:52 -0400 Subject: arch/tile: avoid false corrupt frame warning in early boot With lockstat we can end up trying to get a backtrace before "high_memory" is initialized, so don't worry about range testing if it is zero. Signed-off-by: Chris Metcalf diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c index ee01b1c..2d5ef61 100644 --- a/arch/tile/kernel/process.c +++ b/arch/tile/kernel/process.c @@ -286,7 +286,7 @@ struct task_struct *validate_current(void) static struct task_struct corrupt = { .comm = "" }; struct task_struct *tsk = current; if (unlikely((unsigned long)tsk < PAGE_OFFSET || - (void *)tsk > high_memory || + (high_memory && (void *)tsk > high_memory) || ((unsigned long)tsk & (__alignof__(*tsk) - 1)) != 0)) { pr_err("Corrupt 'current' %p (sp %#lx)\n", tsk, stack_pointer); tsk = &corrupt; -- cgit v0.10.2 From efb734d8ed040b053f53fd53589ed5d9c9b5cd04 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Thu, 29 Mar 2012 14:05:04 -0400 Subject: arch/tile: make sure to build memcpy_user_64 without frame pointer Add a comment explaining why this is important, and add a CFLAGS_REMOVE clause to the Makefile to make sure it happens. Signed-off-by: Chris Metcalf diff --git a/arch/tile/lib/Makefile b/arch/tile/lib/Makefile index 0c26086..985f598 100644 --- a/arch/tile/lib/Makefile +++ b/arch/tile/lib/Makefile @@ -7,6 +7,7 @@ lib-y = cacheflush.o checksum.o cpumask.o delay.o uaccess.o \ strchr_$(BITS).o strlen_$(BITS).o ifeq ($(CONFIG_TILEGX),y) +CFLAGS_REMOVE_memcpy_user_64.o = -fno-omit-frame-pointer lib-y += memcpy_user_64.o else lib-y += atomic_32.o atomic_asm_32.o memcpy_tile64.o diff --git a/arch/tile/lib/memcpy_user_64.c b/arch/tile/lib/memcpy_user_64.c index 4763b3a..37440ca 100644 --- a/arch/tile/lib/memcpy_user_64.c +++ b/arch/tile/lib/memcpy_user_64.c @@ -14,7 +14,13 @@ * Do memcpy(), but trap and return "n" when a load or store faults. * * Note: this idiom only works when memcpy() compiles to a leaf function. - * If "sp" is updated during memcpy, the "jrp lr" will be incorrect. + * Here leaf function not only means it does not have calls, but also + * requires no stack operations (sp, stack frame pointer) and no + * use of callee-saved registers, else "jrp lr" will be incorrect since + * unwinding stack frame is bypassed. Since memcpy() is not complex so + * these conditions are satisfied here, but we need to be careful when + * modifying this file. This is not a clean solution but is the best + * one so far. * * Also note that we are capturing "n" from the containing scope here. */ -- cgit v0.10.2 From 5f639fdcd8c186c8128c616e94a7e7b159c968ae Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Thu, 29 Mar 2012 14:06:14 -0400 Subject: arch/tile: various bugs in stack backtracer Fix a long-standing bug in the stack backtracer where we would print garbage to the console instead of kernel function names, if the kernel wasn't built with symbol support (e.g. mboot). Make sure to tag every line of userspace backtrace output if we actually have the mmap_sem, since that way if there's no tag, we know that it's because we couldn't trylock the semaphore. Stop doing a TLB flush and examining page tables during backtrace. Instead, just trust that __copy_from_user_inatomic() will properly fault and return a failure, which it should do in all cases. Fix a latent bug where the backtracer would directly examine a signal context in user space, rather than copying it safely to kernel memory first. This meant that a race with another thread could potentially have caused a kernel panic. Guard against unaligned sp when trying to restart backtrace at an interrupt or signal handler point in the kernel backtracer. Report kernel symbolic information for the call instruction rather than for the following instruction. We still report the actual numeric address corresponding to the instruction after the call, for the sake of consistency with the normal expectations for stack backtracers. Signed-off-by: Chris Metcalf diff --git a/arch/tile/include/asm/stack.h b/arch/tile/include/asm/stack.h index 4d97a2d..0e9d382 100644 --- a/arch/tile/include/asm/stack.h +++ b/arch/tile/include/asm/stack.h @@ -25,7 +25,6 @@ struct KBacktraceIterator { BacktraceIterator it; struct task_struct *task; /* task we are backtracing */ - pte_t *pgtable; /* page table for user space access */ int end; /* iteration complete. */ int new_context; /* new context is starting */ int profile; /* profiling, so stop on async intrpt */ diff --git a/arch/tile/kernel/stack.c b/arch/tile/kernel/stack.c index 0be6b01..b2f44c2 100644 --- a/arch/tile/kernel/stack.c +++ b/arch/tile/kernel/stack.c @@ -21,9 +21,10 @@ #include #include #include +#include +#include #include #include -#include #include #include #include @@ -45,72 +46,23 @@ static int in_kernel_stack(struct KBacktraceIterator *kbt, unsigned long sp) return sp >= kstack_base && sp < kstack_base + THREAD_SIZE; } -/* Is address valid for reading? */ -static int valid_address(struct KBacktraceIterator *kbt, unsigned long address) -{ - HV_PTE *l1_pgtable = kbt->pgtable; - HV_PTE *l2_pgtable; - unsigned long pfn; - HV_PTE pte; - struct page *page; - - if (l1_pgtable == NULL) - return 0; /* can't read user space in other tasks */ - -#ifdef CONFIG_64BIT - /* Find the real l1_pgtable by looking in the l0_pgtable. */ - pte = l1_pgtable[HV_L0_INDEX(address)]; - if (!hv_pte_get_present(pte)) - return 0; - pfn = hv_pte_get_pfn(pte); - if (pte_huge(pte)) { - if (!pfn_valid(pfn)) { - pr_err("L0 huge page has bad pfn %#lx\n", pfn); - return 0; - } - return hv_pte_get_present(pte) && hv_pte_get_readable(pte); - } - page = pfn_to_page(pfn); - BUG_ON(PageHighMem(page)); /* No HIGHMEM on 64-bit. */ - l1_pgtable = (HV_PTE *)pfn_to_kaddr(pfn); -#endif - pte = l1_pgtable[HV_L1_INDEX(address)]; - if (!hv_pte_get_present(pte)) - return 0; - pfn = hv_pte_get_pfn(pte); - if (pte_huge(pte)) { - if (!pfn_valid(pfn)) { - pr_err("huge page has bad pfn %#lx\n", pfn); - return 0; - } - return hv_pte_get_present(pte) && hv_pte_get_readable(pte); - } - - page = pfn_to_page(pfn); - if (PageHighMem(page)) { - pr_err("L2 page table not in LOWMEM (%#llx)\n", - HV_PFN_TO_CPA(pfn)); - return 0; - } - l2_pgtable = (HV_PTE *)pfn_to_kaddr(pfn); - pte = l2_pgtable[HV_L2_INDEX(address)]; - return hv_pte_get_present(pte) && hv_pte_get_readable(pte); -} - /* Callback for backtracer; basically a glorified memcpy */ static bool read_memory_func(void *result, unsigned long address, unsigned int size, void *vkbt) { int retval; struct KBacktraceIterator *kbt = (struct KBacktraceIterator *)vkbt; + + if (address == 0) + return 0; if (__kernel_text_address(address)) { /* OK to read kernel code. */ } else if (address >= PAGE_OFFSET) { /* We only tolerate kernel-space reads of this task's stack */ if (!in_kernel_stack(kbt, address)) return 0; - } else if (!valid_address(kbt, address)) { - return 0; /* invalid user-space address */ + } else if (!kbt->is_current) { + return 0; /* can't read from other user address spaces */ } pagefault_disable(); retval = __copy_from_user_inatomic(result, @@ -128,6 +80,8 @@ static struct pt_regs *valid_fault_handler(struct KBacktraceIterator* kbt) unsigned long sp = kbt->it.sp; struct pt_regs *p; + if (sp % sizeof(long) != 0) + return NULL; if (!in_kernel_stack(kbt, sp)) return NULL; if (!in_kernel_stack(kbt, sp + C_ABI_SAVE_AREA_SIZE + PTREGS_SIZE-1)) @@ -170,27 +124,27 @@ static int is_sigreturn(unsigned long pc) } /* Return a pt_regs pointer for a valid signal handler frame */ -static struct pt_regs *valid_sigframe(struct KBacktraceIterator* kbt) +static struct pt_regs *valid_sigframe(struct KBacktraceIterator* kbt, + struct rt_sigframe* kframe) { BacktraceIterator *b = &kbt->it; - if (b->pc == VDSO_BASE) { - struct rt_sigframe *frame; - unsigned long sigframe_top = - b->sp + sizeof(struct rt_sigframe) - 1; - if (!valid_address(kbt, b->sp) || - !valid_address(kbt, sigframe_top)) { - if (kbt->verbose) - pr_err(" (odd signal: sp %#lx?)\n", - (unsigned long)(b->sp)); + if (b->pc == VDSO_BASE && b->sp < PAGE_OFFSET && + b->sp % sizeof(long) == 0) { + int retval; + pagefault_disable(); + retval = __copy_from_user_inatomic( + kframe, (void __user __force *)b->sp, + sizeof(*kframe)); + pagefault_enable(); + if (retval != 0 || + (unsigned int)(kframe->info.si_signo) >= _NSIG) return NULL; - } - frame = (struct rt_sigframe *)b->sp; if (kbt->verbose) { pr_err(" \n", - frame->info.si_signo); + kframe->info.si_signo); } - return (struct pt_regs *)&frame->uc.uc_mcontext; + return (struct pt_regs *)&kframe->uc.uc_mcontext; } return NULL; } @@ -203,10 +157,11 @@ static int KBacktraceIterator_is_sigreturn(struct KBacktraceIterator *kbt) static int KBacktraceIterator_restart(struct KBacktraceIterator *kbt) { struct pt_regs *p; + struct rt_sigframe kframe; p = valid_fault_handler(kbt); if (p == NULL) - p = valid_sigframe(kbt); + p = valid_sigframe(kbt, &kframe); if (p == NULL) return 0; backtrace_init(&kbt->it, read_memory_func, kbt, @@ -266,41 +221,19 @@ void KBacktraceIterator_init(struct KBacktraceIterator *kbt, /* * Set up callback information. We grab the kernel stack base - * so we will allow reads of that address range, and if we're - * asking about the current process we grab the page table - * so we can check user accesses before trying to read them. - * We flush the TLB to avoid any weird skew issues. + * so we will allow reads of that address range. */ - is_current = (t == NULL); + is_current = (t == NULL || t == current); kbt->is_current = is_current; if (is_current) t = validate_current(); kbt->task = t; - kbt->pgtable = NULL; kbt->verbose = 0; /* override in caller if desired */ kbt->profile = 0; /* override in caller if desired */ kbt->end = KBT_ONGOING; - kbt->new_context = 0; - if (is_current) { - HV_PhysAddr pgdir_pa = hv_inquire_context().page_table; - if (pgdir_pa == (unsigned long)swapper_pg_dir - PAGE_OFFSET) { - /* - * Not just an optimization: this also allows - * this to work at all before va/pa mappings - * are set up. - */ - kbt->pgtable = swapper_pg_dir; - } else { - struct page *page = pfn_to_page(PFN_DOWN(pgdir_pa)); - if (!PageHighMem(page)) - kbt->pgtable = __va(pgdir_pa); - else - pr_err("page table not in LOWMEM" - " (%#llx)\n", pgdir_pa); - } - local_flush_tlb_all(); + kbt->new_context = 1; + if (is_current) validate_stack(regs); - } if (regs == NULL) { if (is_current || t->state == TASK_RUNNING) { @@ -346,6 +279,78 @@ void KBacktraceIterator_next(struct KBacktraceIterator *kbt) } EXPORT_SYMBOL(KBacktraceIterator_next); +static void describe_addr(struct KBacktraceIterator *kbt, + unsigned long address, + int have_mmap_sem, char *buf, size_t bufsize) +{ + struct vm_area_struct *vma; + size_t namelen, remaining; + unsigned long size, offset, adjust; + char *p, *modname; + const char *name; + int rc; + + /* + * Look one byte back for every caller frame (i.e. those that + * aren't a new context) so we look up symbol data for the + * call itself, not the following instruction, which may be on + * a different line (or in a different function). + */ + adjust = !kbt->new_context; + address -= adjust; + + if (address >= PAGE_OFFSET) { + /* Handle kernel symbols. */ + BUG_ON(bufsize < KSYM_NAME_LEN); + name = kallsyms_lookup(address, &size, &offset, + &modname, buf); + if (name == NULL) { + buf[0] = '\0'; + return; + } + namelen = strlen(buf); + remaining = (bufsize - 1) - namelen; + p = buf + namelen; + rc = snprintf(p, remaining, "+%#lx/%#lx ", + offset + adjust, size); + if (modname && rc < remaining) + snprintf(p + rc, remaining - rc, "[%s] ", modname); + buf[bufsize-1] = '\0'; + return; + } + + /* If we don't have the mmap_sem, we can't show any more info. */ + buf[0] = '\0'; + if (!have_mmap_sem) + return; + + /* Find vma info. */ + vma = find_vma(kbt->task->mm, address); + if (vma == NULL || address < vma->vm_start) { + snprintf(buf, bufsize, "[unmapped address] "); + return; + } + + if (vma->vm_file) { + char *s; + p = d_path(&vma->vm_file->f_path, buf, bufsize); + if (IS_ERR(p)) + p = "?"; + s = strrchr(p, '/'); + if (s) + p = s+1; + } else { + p = "anon"; + } + + /* Generate a string description of the vma info. */ + namelen = strlen(p); + remaining = (bufsize - 1) - namelen; + memmove(buf, p, namelen); + snprintf(buf + namelen, remaining, "[%lx+%lx] ", + vma->vm_start, vma->vm_end - vma->vm_start); +} + /* * This method wraps the backtracer's more generic support. * It is only invoked from the architecture-specific code; show_stack() @@ -354,6 +359,7 @@ EXPORT_SYMBOL(KBacktraceIterator_next); void tile_show_stack(struct KBacktraceIterator *kbt, int headers) { int i; + int have_mmap_sem = 0; if (headers) { /* @@ -370,31 +376,16 @@ void tile_show_stack(struct KBacktraceIterator *kbt, int headers) kbt->verbose = 1; i = 0; for (; !KBacktraceIterator_end(kbt); KBacktraceIterator_next(kbt)) { - char *modname; - const char *name; - unsigned long address = kbt->it.pc; - unsigned long offset, size; char namebuf[KSYM_NAME_LEN+100]; + unsigned long address = kbt->it.pc; - if (address >= PAGE_OFFSET) - name = kallsyms_lookup(address, &size, &offset, - &modname, namebuf); - else - name = NULL; - - if (!name) - namebuf[0] = '\0'; - else { - size_t namelen = strlen(namebuf); - size_t remaining = (sizeof(namebuf) - 1) - namelen; - char *p = namebuf + namelen; - int rc = snprintf(p, remaining, "+%#lx/%#lx ", - offset, size); - if (modname && rc < remaining) - snprintf(p + rc, remaining - rc, - "[%s] ", modname); - namebuf[sizeof(namebuf)-1] = '\0'; - } + /* Try to acquire the mmap_sem as we pass into userspace. */ + if (address < PAGE_OFFSET && !have_mmap_sem && kbt->task->mm) + have_mmap_sem = + down_read_trylock(&kbt->task->mm->mmap_sem); + + describe_addr(kbt, address, have_mmap_sem, + namebuf, sizeof(namebuf)); pr_err(" frame %d: 0x%lx %s(sp 0x%lx)\n", i++, address, namebuf, (unsigned long)(kbt->it.sp)); @@ -409,6 +400,8 @@ void tile_show_stack(struct KBacktraceIterator *kbt, int headers) pr_err("Stack dump stopped; next frame identical to this one\n"); if (headers) pr_err("Stack dump complete\n"); + if (have_mmap_sem) + up_read(&kbt->task->mm->mmap_sem); } EXPORT_SYMBOL(tile_show_stack); -- cgit v0.10.2 From e17235382dbb05f70146e141e4b780fd069050dc Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Thu, 29 Mar 2012 14:52:00 -0400 Subject: arch/tile: work around a hardware issue with the return-address stack In certain circumstances we need to do a bunch of jump-and-link instructions to fill the hardware return-address stack with nonzero values. Signed-off-by: Chris Metcalf diff --git a/arch/tile/include/asm/traps.h b/arch/tile/include/asm/traps.h index 5f20f92..e28c3df4 100644 --- a/arch/tile/include/asm/traps.h +++ b/arch/tile/include/asm/traps.h @@ -64,7 +64,11 @@ void do_breakpoint(struct pt_regs *, int fault_num); #ifdef __tilegx__ +/* kernel/single_step.c */ void gx_singlestep_handle(struct pt_regs *, int fault_num); + +/* kernel/intvec_64.S */ +void fill_ra_stack(void); #endif -#endif /* _ASM_TILE_SYSCALLS_H */ +#endif /* _ASM_TILE_TRAPS_H */ diff --git a/arch/tile/kernel/intvec_64.S b/arch/tile/kernel/intvec_64.S index 79c93e1..2c181c8 100644 --- a/arch/tile/kernel/intvec_64.S +++ b/arch/tile/kernel/intvec_64.S @@ -1156,6 +1156,18 @@ int_unalign: push_extra_callee_saves r0 j do_trap +/* Fill the return address stack with nonzero entries. */ +STD_ENTRY(fill_ra_stack) + { + move r0, lr + jal 1f + } +1: jal 2f +2: jal 3f +3: jal 4f +4: jrp r0 + STD_ENDPROC(fill_ra_stack) + /* Include .intrpt1 array of interrupt vectors */ .section ".intrpt1", "ax" diff --git a/arch/tile/kernel/traps.c b/arch/tile/kernel/traps.c index 2bb6602..32acfd9 100644 --- a/arch/tile/kernel/traps.c +++ b/arch/tile/kernel/traps.c @@ -289,7 +289,10 @@ void __kprobes do_trap(struct pt_regs *regs, int fault_num, address = regs->pc; break; #ifdef __tilegx__ - case INT_ILL_TRANS: + case INT_ILL_TRANS: { + /* Avoid a hardware erratum with the return address stack. */ + fill_ra_stack(); + signo = SIGSEGV; code = SEGV_MAPERR; if (reason & SPR_ILL_TRANS_REASON__I_STREAM_VA_RMASK) @@ -297,6 +300,7 @@ void __kprobes do_trap(struct pt_regs *regs, int fault_num, else address = 0; /* FIXME: GX: single-step for address */ break; + } #endif default: panic("Unexpected do_trap interrupt number %d", fault_num); -- cgit v0.10.2 From a714ffff36a581756ec3b001f47e8e5e96a9fa0e Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Thu, 29 Mar 2012 15:23:54 -0400 Subject: arch/tile: fix up some minor trap handling issues We now respond to MEM_ERROR traps (e.g. an atomic instruction to non-cacheable memory) with a SIGBUS. We also no longer generate a console crash message if a user process die due to a SIGTRAP. Signed-off-by: Chris Metcalf diff --git a/arch/tile/kernel/intvec_64.S b/arch/tile/kernel/intvec_64.S index 2c181c8..005535d 100644 --- a/arch/tile/kernel/intvec_64.S +++ b/arch/tile/kernel/intvec_64.S @@ -1178,7 +1178,7 @@ STD_ENTRY(fill_ra_stack) #define do_hardwall_trap bad_intr #endif - int_hand INT_MEM_ERROR, MEM_ERROR, bad_intr + int_hand INT_MEM_ERROR, MEM_ERROR, do_trap int_hand INT_SINGLE_STEP_3, SINGLE_STEP_3, bad_intr #if CONFIG_KERNEL_PL == 2 int_hand INT_SINGLE_STEP_2, SINGLE_STEP_2, gx_singlestep_handle diff --git a/arch/tile/kernel/traps.c b/arch/tile/kernel/traps.c index 32acfd9..73cff81 100644 --- a/arch/tile/kernel/traps.c +++ b/arch/tile/kernel/traps.c @@ -200,7 +200,7 @@ void __kprobes do_trap(struct pt_regs *regs, int fault_num, { siginfo_t info = { 0 }; int signo, code; - unsigned long address; + unsigned long address = 0; bundle_bits instr; /* Re-enable interrupts. */ @@ -223,6 +223,10 @@ void __kprobes do_trap(struct pt_regs *regs, int fault_num, } switch (fault_num) { + case INT_MEM_ERROR: + signo = SIGBUS; + code = BUS_OBJERR; + break; case INT_ILL: if (copy_from_user(&instr, (void __user *)regs->pc, sizeof(instr))) { @@ -312,7 +316,8 @@ void __kprobes do_trap(struct pt_regs *regs, int fault_num, info.si_addr = (void __user *)address; if (signo == SIGILL) info.si_trapno = fault_num; - trace_unhandled_signal("trap", regs, address, signo); + if (signo != SIGTRAP) + trace_unhandled_signal("trap", regs, address, signo); force_sig_info(signo, &info, current); } -- cgit v0.10.2 From 51bcdf8879f7920946c90087e6160680812a44bd Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Thu, 29 Mar 2012 15:29:28 -0400 Subject: arch/tile: fix a couple of comments that needed updating Not associated with any code changes, so I'm just lumping these comment changes into a commit by themselves. Signed-off-by: Chris Metcalf diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c index 5f85d8b..023e2e1 100644 --- a/arch/tile/kernel/setup.c +++ b/arch/tile/kernel/setup.c @@ -913,6 +913,13 @@ void __cpuinit setup_cpu(int boot) #ifdef CONFIG_BLK_DEV_INITRD +/* + * Note that the kernel can potentially support other compression + * techniques than gz, though we don't do so by default. If we ever + * decide to do so we can either look for other filename extensions, + * or just allow a file with this name to be compressed with an + * arbitrary compressor (somewhat counterintuitively). + */ static int __initdata set_initramfs_file; static char __initdata initramfs_file[128] = "initramfs.cpio.gz"; @@ -928,9 +935,9 @@ static int __init setup_initramfs_file(char *str) early_param("initramfs_file", setup_initramfs_file); /* - * We look for an additional "initramfs.cpio.gz" file in the hvfs. + * We look for an "initramfs.cpio.gz" file in the hvfs. * If there is one, we allocate some memory for it and it will be - * unpacked to the initramfs after any built-in initramfs_data. + * unpacked to the initramfs. */ static void __init load_hv_initrd(void) { diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c index cba30e9..cac17c4 100644 --- a/arch/tile/mm/fault.c +++ b/arch/tile/mm/fault.c @@ -130,7 +130,7 @@ static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address) } /* - * Handle a fault on the vmalloc or module mapping area + * Handle a fault on the vmalloc area. */ static inline int vmalloc_fault(pgd_t *pgd, unsigned long address) { -- cgit v0.10.2 From 6731aa9eae3e94b094a44d2aea02387a39202fbc Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Thu, 29 Mar 2012 15:30:19 -0400 Subject: arch/tile/Makefile: use KCFLAGS when figuring out the libgcc path. Signed-off-by: Chris Metcalf diff --git a/arch/tile/Makefile b/arch/tile/Makefile index 17acce7..5e4d3b9 100644 --- a/arch/tile/Makefile +++ b/arch/tile/Makefile @@ -30,7 +30,8 @@ ifneq ($(CONFIG_DEBUG_EXTRA_FLAGS),"") KBUILD_CFLAGS += $(CONFIG_DEBUG_EXTRA_FLAGS) endif -LIBGCC_PATH := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name) +LIBGCC_PATH := \ + $(shell $(CC) $(KBUILD_CFLAGS) $(KCFLAGS) -print-libgcc-file-name) # Provide the path to use for "make defconfig". KBUILD_DEFCONFIG := $(ARCH)_defconfig -- cgit v0.10.2 From 48292738d06d7b46d861652ef59bd03be931c2c9 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Thu, 29 Mar 2012 15:34:52 -0400 Subject: arch/tile: don't wait for migrating PTEs in an NMI handler Doing so raises the possibility of self-deadlock if we are waiting for a backtrace for an oprofile or perf interrupt while we are in the middle of migrating our own stack page. Signed-off-by: Chris Metcalf diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c index cac17c4..a1da473 100644 --- a/arch/tile/mm/fault.c +++ b/arch/tile/mm/fault.c @@ -203,9 +203,14 @@ static pgd_t *get_current_pgd(void) * interrupt or a critical region, and must do as little as possible. * Similarly, we can't use atomic ops here, since we may be handling a * fault caused by an atomic op access. + * + * If we find a migrating PTE while we're in an NMI context, and we're + * at a PC that has a registered exception handler, we don't wait, + * since this thread may (e.g.) have been interrupted while migrating + * its own stack, which would then cause us to self-deadlock. */ static int handle_migrating_pte(pgd_t *pgd, int fault_num, - unsigned long address, + unsigned long address, unsigned long pc, int is_kernel_mode, int write) { pud_t *pud; @@ -227,6 +232,8 @@ static int handle_migrating_pte(pgd_t *pgd, int fault_num, pte_offset_kernel(pmd, address); pteval = *pte; if (pte_migrating(pteval)) { + if (in_nmi() && search_exception_tables(pc)) + return 0; wait_for_migration(pte); return 1; } @@ -300,7 +307,7 @@ static int handle_page_fault(struct pt_regs *regs, * rather than trying to patch up the existing PTE. */ pgd = get_current_pgd(); - if (handle_migrating_pte(pgd, fault_num, address, + if (handle_migrating_pte(pgd, fault_num, address, regs->pc, is_kernel_mode, write)) return 1; @@ -665,7 +672,7 @@ struct intvec_state do_page_fault_ics(struct pt_regs *regs, int fault_num, */ if (fault_num == INT_DTLB_ACCESS) write = 1; - if (handle_migrating_pte(pgd, fault_num, address, 1, write)) + if (handle_migrating_pte(pgd, fault_num, address, pc, 1, write)) return state; /* Return zero so that we continue on with normal fault handling. */ -- cgit v0.10.2 From 12400f1f22ad7651efa1d3d06dd8b6b178d19ea3 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Thu, 29 Mar 2012 15:36:53 -0400 Subject: arch/tile: don't set the homecache of a PTE unless appropriate We make sure not to try to set the home for an MMIO PTE (on tilegx) or a PTE that isn't referencing memory managed by Linux. Signed-off-by: Chris Metcalf diff --git a/arch/tile/mm/pgtable.c b/arch/tile/mm/pgtable.c index 8730369..6b9a109 100644 --- a/arch/tile/mm/pgtable.c +++ b/arch/tile/mm/pgtable.c @@ -469,10 +469,18 @@ void __set_pte(pte_t *ptep, pte_t pte) void set_pte(pte_t *ptep, pte_t pte) { - struct page *page = pfn_to_page(pte_pfn(pte)); - - /* Update the home of a PTE if necessary */ - pte = pte_set_home(pte, page_home(page)); + if (pte_present(pte) && + (!CHIP_HAS_MMIO() || hv_pte_get_mode(pte) != HV_PTE_MODE_MMIO)) { + /* The PTE actually references physical memory. */ + unsigned long pfn = pte_pfn(pte); + if (pfn_valid(pfn)) { + /* Update the home of the PTE from the struct page. */ + pte = pte_set_home(pte, page_home(pfn_to_page(pfn))); + } else if (hv_pte_get_mode(pte) == 0) { + /* remap_pfn_range(), etc, must supply PTE mode. */ + panic("set_pte(): out-of-range PFN and mode 0\n"); + } + } __set_pte(ptep, pte); } -- cgit v0.10.2 From b230ff2d5c53bb79e1121554cd3c827e5c1b70fd Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Thu, 29 Mar 2012 15:40:50 -0400 Subject: arch/tile: don't enable irqs unconditionally in page fault handler If we took a page fault while we had interrupts disabled, we shouldn't enable them in the page fault handler. Signed-off-by: Chris Metcalf diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c index a1da473..22e58f5 100644 --- a/arch/tile/mm/fault.c +++ b/arch/tile/mm/fault.c @@ -342,9 +342,12 @@ static int handle_page_fault(struct pt_regs *regs, /* * If we're trying to touch user-space addresses, we must * be either at PL0, or else with interrupts enabled in the - * kernel, so either way we can re-enable interrupts here. + * kernel, so either way we can re-enable interrupts here + * unless we are doing atomic access to user space with + * interrupts disabled. */ - local_irq_enable(); + if (!(regs->flags & PT_FLAGS_DISABLE_IRQ)) + local_irq_enable(); mm = tsk->mm; -- cgit v0.10.2 From 7a7039ee71811222310b431aee246eb78dd0d401 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Thu, 29 Mar 2012 15:42:27 -0400 Subject: arch/tile: fix bug in loading kernels larger than 16 MB Previously we only handled kernels up to a single huge page in size. Now we create additional PTEs appropriately. Signed-off-by: Chris Metcalf diff --git a/arch/tile/mm/init.c b/arch/tile/mm/init.c index 830c490..8400d3f 100644 --- a/arch/tile/mm/init.c +++ b/arch/tile/mm/init.c @@ -557,6 +557,7 @@ static void __init kernel_physical_mapping_init(pgd_t *pgd_base) address = MEM_SV_INTRPT; pmd = get_pmd(pgtables, address); + pfn = 0; /* code starts at PA 0 */ if (ktext_small) { /* Allocate an L2 PTE for the kernel text */ int cpu = 0; @@ -579,10 +580,15 @@ static void __init kernel_physical_mapping_init(pgd_t *pgd_base) } BUG_ON(address != (unsigned long)_stext); - pfn = 0; /* code starts at PA 0 */ - pte = alloc_pte(); - for (pte_ofs = 0; address < (unsigned long)_einittext; - pfn++, pte_ofs++, address += PAGE_SIZE) { + pte = NULL; + for (; address < (unsigned long)_einittext; + pfn++, address += PAGE_SIZE) { + pte_ofs = pte_index(address); + if (pte_ofs == 0) { + if (pte) + assign_pte(pmd++, pte); + pte = alloc_pte(); + } if (!ktext_local) { prot = set_remote_cache_cpu(prot, cpu); cpu = cpumask_next(cpu, &ktext_mask); @@ -591,7 +597,8 @@ static void __init kernel_physical_mapping_init(pgd_t *pgd_base) } pte[pte_ofs] = pfn_pte(pfn, prot); } - assign_pte(pmd, pte); + if (pte) + assign_pte(pmd, pte); } else { pte_t pteval = pfn_pte(0, PAGE_KERNEL_EXEC); pteval = pte_mkhuge(pteval); @@ -614,7 +621,9 @@ static void __init kernel_physical_mapping_init(pgd_t *pgd_base) else pteval = hv_pte_set_mode(pteval, HV_PTE_MODE_CACHE_NO_L3); - *(pte_t *)pmd = pteval; + for (; address < (unsigned long)_einittext; + pfn += PFN_DOWN(HPAGE_SIZE), address += HPAGE_SIZE) + *(pte_t *)(pmd++) = pfn_pte(pfn, pteval); } /* Set swapper_pgprot here so it is flushed to memory right away. */ -- cgit v0.10.2 From 444eef1ba40546690a77b2af4cba7d4561e7bba5 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Thu, 29 Mar 2012 15:43:20 -0400 Subject: arch/tile: fix bug in delay_backoff() We were carefully computing a value to use for the number of loops to spin for, and then ignoring it. Signed-off-by: Chris Metcalf diff --git a/arch/tile/lib/spinlock_common.h b/arch/tile/lib/spinlock_common.h index c101098..6ac3750 100644 --- a/arch/tile/lib/spinlock_common.h +++ b/arch/tile/lib/spinlock_common.h @@ -60,5 +60,5 @@ static void delay_backoff(int iterations) loops += __insn_crc32_32(stack_pointer, get_cycles_low()) & (loops - 1); - relax(1 << exponent); + relax(loops); } -- cgit v0.10.2 From 5f220704127ae70db519fabbda4ece649eadac7f Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Thu, 29 Mar 2012 15:44:10 -0400 Subject: arch/tile: don't leak kernel memory when we unload modules We were failing to track the memory when we allocated it. Signed-off-by: Chris Metcalf diff --git a/arch/tile/kernel/module.c b/arch/tile/kernel/module.c index b90ab99..98d4769 100644 --- a/arch/tile/kernel/module.c +++ b/arch/tile/kernel/module.c @@ -67,6 +67,8 @@ void *module_alloc(unsigned long size) area = __get_vm_area(size, VM_ALLOC, MEM_MODULE_START, MEM_MODULE_END); if (!area) goto error; + area->nr_pages = npages; + area->pages = pages; if (map_vm_area(area, prot_rwx, &pages)) { vunmap(area->addr); -- cgit v0.10.2 From 719ea79e330c5e1a17fb7e4cf352a81e4c84cff5 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Thu, 29 Mar 2012 15:50:08 -0400 Subject: arch/tile: fix up locking in pgtable.c slightly We should be holding the init_mm.page_table_lock in shatter_huge_page() since we are modifying the kernel page tables. Then, only if we are walking the other root page tables to update them, do we want to take the pgd_lock. Add a comment about taking the pgd_lock that we always do it with interrupts disabled and therefore are not at risk from the tlbflush IPI deadlock as is seen on x86. Signed-off-by: Chris Metcalf diff --git a/arch/tile/mm/pgtable.c b/arch/tile/mm/pgtable.c index 6b9a109..2410aa8 100644 --- a/arch/tile/mm/pgtable.c +++ b/arch/tile/mm/pgtable.c @@ -177,14 +177,10 @@ void shatter_huge_page(unsigned long addr) if (!pmd_huge_page(*pmd)) return; - /* - * Grab the pgd_lock, since we may need it to walk the pgd_list, - * and since we need some kind of lock here to avoid races. - */ - spin_lock_irqsave(&pgd_lock, flags); + spin_lock_irqsave(&init_mm.page_table_lock, flags); if (!pmd_huge_page(*pmd)) { /* Lost the race to convert the huge page. */ - spin_unlock_irqrestore(&pgd_lock, flags); + spin_unlock_irqrestore(&init_mm.page_table_lock, flags); return; } @@ -194,6 +190,7 @@ void shatter_huge_page(unsigned long addr) #ifdef __PAGETABLE_PMD_FOLDED /* Walk every pgd on the system and update the pmd there. */ + spin_lock(&pgd_lock); list_for_each(pos, &pgd_list) { pmd_t *copy_pmd; pgd = list_to_pgd(pos) + pgd_index(addr); @@ -201,6 +198,7 @@ void shatter_huge_page(unsigned long addr) copy_pmd = pmd_offset(pud, addr); __set_pmd(copy_pmd, *pmd); } + spin_unlock(&pgd_lock); #endif /* Tell every cpu to notice the change. */ @@ -208,7 +206,7 @@ void shatter_huge_page(unsigned long addr) cpu_possible_mask, NULL, 0); /* Hold the lock until the TLB flush is finished to avoid races. */ - spin_unlock_irqrestore(&pgd_lock, flags); + spin_unlock_irqrestore(&init_mm.page_table_lock, flags); } /* @@ -217,9 +215,13 @@ void shatter_huge_page(unsigned long addr) * against pageattr.c; it is the unique case in which a valid change * of kernel pagetables can't be lazily synchronized by vmalloc faults. * vmalloc faults work because attached pagetables are never freed. - * The locking scheme was chosen on the basis of manfred's - * recommendations and having no core impact whatsoever. - * -- wli + * + * The lock is always taken with interrupts disabled, unlike on x86 + * and other platforms, because we need to take the lock in + * shatter_huge_page(), which may be called from an interrupt context. + * We are not at risk from the tlbflush IPI deadlock that was seen on + * x86, since we use the flush_remote() API to have the hypervisor do + * the TLB flushes regardless of irq disabling. */ DEFINE_SPINLOCK(pgd_lock); LIST_HEAD(pgd_list); -- cgit v0.10.2 From bfffe79bc29a9c4c817d5f51590961220e26db1a Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Thu, 29 Mar 2012 15:56:18 -0400 Subject: arch/tile: use proper memparse() for "maxmem" options This is more standard and avoids having to remember what units the options actually take. Signed-off-by: Chris Metcalf diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c index 023e2e1..f3598e7 100644 --- a/arch/tile/kernel/setup.c +++ b/arch/tile/kernel/setup.c @@ -103,13 +103,11 @@ unsigned long __initdata pci_reserve_end_pfn = -1U; static int __init setup_maxmem(char *str) { - long maxmem_mb; - if (str == NULL || strict_strtol(str, 0, &maxmem_mb) != 0 || - maxmem_mb == 0) + unsigned long long maxmem; + if (str == NULL || (maxmem = memparse(str, NULL)) == 0) return -EINVAL; - maxmem_pfn = (maxmem_mb >> (HPAGE_SHIFT - 20)) << - (HPAGE_SHIFT - PAGE_SHIFT); + maxmem_pfn = (maxmem >> HPAGE_SHIFT) << (HPAGE_SHIFT - PAGE_SHIFT); pr_info("Forcing RAM used to no more than %dMB\n", maxmem_pfn >> (20 - PAGE_SHIFT)); return 0; @@ -119,14 +117,15 @@ early_param("maxmem", setup_maxmem); static int __init setup_maxnodemem(char *str) { char *endp; - long maxnodemem_mb, node; + unsigned long long maxnodemem; + long node; node = str ? simple_strtoul(str, &endp, 0) : INT_MAX; - if (node >= MAX_NUMNODES || *endp != ':' || - strict_strtol(endp+1, 0, &maxnodemem_mb) != 0) + if (node >= MAX_NUMNODES || *endp != ':') return -EINVAL; - maxnodemem_pfn[node] = (maxnodemem_mb >> (HPAGE_SHIFT - 20)) << + maxnodemem = memparse(endp+1, NULL); + maxnodemem_pfn[node] = (maxnodemem >> HPAGE_SHIFT) << (HPAGE_SHIFT - PAGE_SHIFT); pr_info("Forcing RAM used on node %ld to no more than %dMB\n", node, maxnodemem_pfn[node] >> (20 - PAGE_SHIFT)); -- cgit v0.10.2 From 8c92ba6c327ee5089dec1e92eaa82927bee63d6d Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Thu, 29 Mar 2012 15:57:18 -0400 Subject: arch/tile: add "nop" after "nap" to help GX idle power draw This avoids the hardware istream prefetcher doing unnecessary work. Signed-off-by: Chris Metcalf diff --git a/arch/tile/kernel/entry.S b/arch/tile/kernel/entry.S index 431e9ae..ec91568 100644 --- a/arch/tile/kernel/entry.S +++ b/arch/tile/kernel/entry.S @@ -85,6 +85,7 @@ STD_ENTRY(cpu_idle_on_new_stack) /* Loop forever on a nap during SMP boot. */ STD_ENTRY(smp_nap) nap + nop /* avoid provoking the icache prefetch with a jump */ j smp_nap /* we are not architecturally guaranteed not to exit nap */ jrp lr /* clue in the backtracer */ STD_ENDPROC(smp_nap) @@ -105,5 +106,6 @@ STD_ENTRY(_cpu_idle) .global _cpu_idle_nap _cpu_idle_nap: nap + nop /* avoid provoking the icache prefetch with a jump */ jrp lr STD_ENDPROC(_cpu_idle) diff --git a/arch/tile/kernel/smp.c b/arch/tile/kernel/smp.c index a44e103..7b6df8c 100644 --- a/arch/tile/kernel/smp.c +++ b/arch/tile/kernel/smp.c @@ -103,7 +103,7 @@ static void smp_stop_cpu_interrupt(void) set_cpu_online(smp_processor_id(), 0); arch_local_irq_disable_all(); for (;;) - asm("nap"); + asm("nap; nop"); } /* This function calls the 'stop' function on all other CPUs in the system. */ -- cgit v0.10.2 From cb210ee3a81afab7c64777635cc18899a2bdd9a5 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Thu, 29 Mar 2012 15:59:11 -0400 Subject: arch/tile: implement panic_smp_self_stop() This allows the later-panicking tiles to wait in a lower power state until they get interrupted with an smp_send_stop(). Signed-off-by: Chris Metcalf diff --git a/arch/tile/kernel/smp.c b/arch/tile/kernel/smp.c index 7b6df8c..91da0f7 100644 --- a/arch/tile/kernel/smp.c +++ b/arch/tile/kernel/smp.c @@ -113,6 +113,12 @@ void smp_send_stop(void) send_IPI_allbutself(MSG_TAG_STOP_CPU); } +/* On panic, just wait; we may get an smp_send_stop() later on. */ +void panic_smp_self_stop(void) +{ + while (1) + asm("nap; nop"); +} /* * Dispatch code called from hv_message_intr() for HV_MSG_TILE hv messages. -- cgit v0.10.2 From 2858f856021340f3730fa8639dd520a2e4331f7f Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Thu, 29 Mar 2012 16:11:09 -0400 Subject: arch/tile: fix single-stepping over swint1 instructions on tilegx If we are single-stepping and make a syscall, we call ptrace_notify() explicitly on the return path back to user space, since we are returning to a pc value set artificially to the next instruction, and otherwise we won't register that we stepped over the syscall instruction (swint1). Signed-off-by: Chris Metcalf diff --git a/arch/tile/kernel/intvec_64.S b/arch/tile/kernel/intvec_64.S index 005535d..fdff17c 100644 --- a/arch/tile/kernel/intvec_64.S +++ b/arch/tile/kernel/intvec_64.S @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include @@ -1039,11 +1040,25 @@ handle_syscall: /* Do syscall trace again, if requested. */ ld r30, r31 - andi r30, r30, _TIF_SYSCALL_TRACE - beqzt r30, 1f + andi r0, r30, _TIF_SYSCALL_TRACE + { + andi r0, r30, _TIF_SINGLESTEP + beqzt r0, 1f + } jal do_syscall_trace FEEDBACK_REENTER(handle_syscall) -1: j .Lresume_userspace /* jump into middle of interrupt_return */ + andi r0, r30, _TIF_SINGLESTEP + +1: beqzt r0, 2f + + /* Single stepping -- notify ptrace. */ + { + movei r0, SIGTRAP + jal ptrace_notify + } + FEEDBACK_REENTER(handle_syscall) + +2: j .Lresume_userspace /* jump into middle of interrupt_return */ .Lcompat_syscall: /* -- cgit v0.10.2 From 918cbd38aef83de3a2516299bcb230caf59462a0 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Thu, 29 Mar 2012 16:14:40 -0400 Subject: arch/tile: fix pointer cast in cacheflush.c Pragmatically it couldn't be wrong to cast pointers to long to compare them (since all kernel addresses are in the top half of VA space), but it's more correct to cast to unsigned long. Signed-off-by: Chris Metcalf diff --git a/arch/tile/lib/cacheflush.c b/arch/tile/lib/cacheflush.c index 8928aac..6af2b97 100644 --- a/arch/tile/lib/cacheflush.c +++ b/arch/tile/lib/cacheflush.c @@ -109,7 +109,7 @@ void finv_buffer_remote(void *buffer, size_t size, int hfh) /* Figure out how far back we need to go. */ base = p - (step_size * (load_count - 2)); - if ((long)base < (long)buffer) + if ((unsigned long)base < (unsigned long)buffer) base = buffer; /* -- cgit v0.10.2 From e81510e0c3800dc730e0c544e3949f7bde368c2b Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Thu, 29 Mar 2012 16:19:45 -0400 Subject: arch/tile: export the page_home() function. This avois a bug in modules trying to use the function. Signed-off-by: Chris Metcalf diff --git a/arch/tile/mm/homecache.c b/arch/tile/mm/homecache.c index 1cc6ae4..499f737 100644 --- a/arch/tile/mm/homecache.c +++ b/arch/tile/mm/homecache.c @@ -394,6 +394,7 @@ int page_home(struct page *page) return pte_to_home(*virt_to_pte(NULL, kva)); } } +EXPORT_SYMBOL(page_home); void homecache_change_page_home(struct page *page, int order, int home) { -- cgit v0.10.2 From b14f21906774be181627412fed5b6b5fae2b53a2 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Fri, 30 Mar 2012 15:29:40 -0400 Subject: arch/tile: stop mentioning the "kvm" subdirectory It causes "make clean" to fail, for example. Once we have KVM support complete, we'll reinstate the subdir reference. Signed-off-by: Chris Metcalf diff --git a/arch/tile/Makefile b/arch/tile/Makefile index 5e4d3b9..9520bc5 100644 --- a/arch/tile/Makefile +++ b/arch/tile/Makefile @@ -54,8 +54,6 @@ libs-y += $(LIBGCC_PATH) # See arch/tile/Kbuild for content of core part of the kernel core-y += arch/tile/ -core-$(CONFIG_KVM) += arch/tile/kvm/ - ifdef TILERA_ROOT INSTALL_PATH ?= $(TILERA_ROOT)/tile/boot endif -- cgit v0.10.2 From ab306cae660e524edbeb8889e4e23d3c97717b9c Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Fri, 30 Mar 2012 15:46:29 -0400 Subject: arch/tile: use atomic exchange in arch_write_unlock() This idiom is used elsewhere when we do an unlock by writing a zero, but I missed it here. Using an atomic operation avoids waiting on the write buffer for the unlocking write to be sent to the home cache. Signed-off-by: Chris Metcalf diff --git a/arch/tile/include/asm/spinlock_64.h b/arch/tile/include/asm/spinlock_64.h index 72be590..5f8b6a0 100644 --- a/arch/tile/include/asm/spinlock_64.h +++ b/arch/tile/include/asm/spinlock_64.h @@ -137,7 +137,7 @@ static inline void arch_read_unlock(arch_rwlock_t *rw) static inline void arch_write_unlock(arch_rwlock_t *rw) { __insn_mf(); - rw->lock = 0; + __insn_exch4(&rw->lock, 0); /* Avoid waiting in the write buffer. */ } static inline int arch_read_trylock(arch_rwlock_t *rw) -- cgit v0.10.2 From 54229ff359250ce7292dbeb59f157a2d3b67e30c Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Fri, 30 Mar 2012 15:47:38 -0400 Subject: arch/tile: fix finv_buffer_remote() for tilegx There were some correctness issues with this code that are now fixed with this change. The change is likely less performant than it could be, but it should no longer be vulnerable to any races with memory operations on the memory network while invalidating a range of memory. This code is run infrequently so performance isn't critical, but correctness definitely is. Signed-off-by: Chris Metcalf diff --git a/arch/tile/lib/cacheflush.c b/arch/tile/lib/cacheflush.c index 6af2b97..db4fb89 100644 --- a/arch/tile/lib/cacheflush.c +++ b/arch/tile/lib/cacheflush.c @@ -39,7 +39,21 @@ void finv_buffer_remote(void *buffer, size_t size, int hfh) { char *p, *base; size_t step_size, load_count; + + /* + * On TILEPro the striping granularity is a fixed 8KB; on + * TILE-Gx it is configurable, and we rely on the fact that + * the hypervisor always configures maximum striping, so that + * bits 9 and 10 of the PA are part of the stripe function, so + * every 512 bytes we hit a striping boundary. + * + */ +#ifdef __tilegx__ + const unsigned long STRIPE_WIDTH = 512; +#else const unsigned long STRIPE_WIDTH = 8192; +#endif + #ifdef __tilegx__ /* * On TILE-Gx, we must disable the dstream prefetcher before doing @@ -74,7 +88,7 @@ void finv_buffer_remote(void *buffer, size_t size, int hfh) * memory, that one load would be sufficient, but since we may * be, we also need to back up to the last load issued to * another memory controller, which would be the point where - * we crossed an 8KB boundary (the granularity of striping + * we crossed a "striping" boundary (the granularity of striping * across memory controllers). Keep backing up and doing this * until we are before the beginning of the buffer, or have * hit all the controllers. @@ -88,12 +102,22 @@ void finv_buffer_remote(void *buffer, size_t size, int hfh) * every cache line on a full memory stripe on each * controller" that we simply do that, to simplify the logic. * - * FIXME: See bug 9535 for some issues with this code. + * On TILE-Gx the hash-for-home function is much more complex, + * with the upshot being we can't readily guarantee we have + * hit both entries in the 128-entry AMT that were hit by any + * load in the entire range, so we just re-load them all. + * With larger buffers, we may want to consider using a hypervisor + * trap to issue loads directly to each hash-for-home tile for + * each controller (doing it from Linux would trash the TLB). */ if (hfh) { step_size = L2_CACHE_BYTES; +#ifdef __tilegx__ + load_count = (size + L2_CACHE_BYTES - 1) / L2_CACHE_BYTES; +#else load_count = (STRIPE_WIDTH / L2_CACHE_BYTES) * (1 << CHIP_LOG_NUM_MSHIMS()); +#endif } else { step_size = STRIPE_WIDTH; load_count = (1 << CHIP_LOG_NUM_MSHIMS()); -- cgit v0.10.2 From cdd8e16feba87a3fc2bb1885d36f895a2a3288bf Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Fri, 30 Mar 2012 16:24:41 -0400 Subject: arch/tile: return SIGBUS for addresses that are unaligned AND invalid Previously we were returning SIGSEGV in this case. It seems cleaner to return SIGBUS since the hardware figures out alignment traps before TLB violations, so SIGBUS is the "more correct" signal. Signed-off-by: Chris Metcalf diff --git a/arch/tile/kernel/single_step.c b/arch/tile/kernel/single_step.c index bc1eb58..9efbc13 100644 --- a/arch/tile/kernel/single_step.c +++ b/arch/tile/kernel/single_step.c @@ -153,6 +153,25 @@ static tile_bundle_bits rewrite_load_store_unaligned( if (((unsigned long)addr % size) == 0) return bundle; + /* + * Return SIGBUS with the unaligned address, if requested. + * Note that we return SIGBUS even for completely invalid addresses + * as long as they are in fact unaligned; this matches what the + * tilepro hardware would be doing, if it could provide us with the + * actual bad address in an SPR, which it doesn't. + */ + if (unaligned_fixup == 0) { + siginfo_t info = { + .si_signo = SIGBUS, + .si_code = BUS_ADRALN, + .si_addr = addr + }; + trace_unhandled_signal("unaligned trap", regs, + (unsigned long)addr, SIGBUS); + force_sig_info(info.si_signo, &info, current); + return (tilepro_bundle_bits) 0; + } + #ifndef __LITTLE_ENDIAN # error We assume little-endian representation with copy_xx_user size 2 here #endif @@ -192,18 +211,6 @@ static tile_bundle_bits rewrite_load_store_unaligned( return (tile_bundle_bits) 0; } - if (unaligned_fixup == 0) { - siginfo_t info = { - .si_signo = SIGBUS, - .si_code = BUS_ADRALN, - .si_addr = addr - }; - trace_unhandled_signal("unaligned trap", regs, - (unsigned long)addr, SIGBUS); - force_sig_info(info.si_signo, &info, current); - return (tile_bundle_bits) 0; - } - if (unaligned_printk || unaligned_fixup_count == 0) { pr_info("Process %d/%s: PC %#lx: Fixup of" " unaligned %s at %#lx.\n", -- cgit v0.10.2 From b1760c847ff9d04fba7cdbef005a0ad805311c6d Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Fri, 30 Mar 2012 16:27:20 -0400 Subject: arch/tile: remove bogus performance optimization We were re-homing the initial task's kernel stack on the boot cpu, but in fact it's better to let it stay globally homed, since that task isn't bound to the boot cpu anyway. This is more of a general cleanup than an actual performance optimization, but it removes code, which is a good thing. :-) Signed-off-by: Chris Metcalf diff --git a/arch/tile/mm/init.c b/arch/tile/mm/init.c index 8400d3f..6a9d20d 100644 --- a/arch/tile/mm/init.c +++ b/arch/tile/mm/init.c @@ -254,11 +254,6 @@ static pgprot_t __init init_pgprot(ulong address) return construct_pgprot(PAGE_KERNEL_RO, PAGE_HOME_IMMUTABLE); } - /* As a performance optimization, keep the boot init stack here. */ - if (address >= (ulong)&init_thread_union && - address < (ulong)&init_thread_union + THREAD_SIZE) - return construct_pgprot(PAGE_KERNEL, smp_processor_id()); - #ifndef __tilegx__ #if !ATOMIC_LOCKS_FOUND_VIA_TABLE() /* Force the atomic_locks[] array page to be hash-for-home. */ -- cgit v0.10.2 From e1d5c0195075abaa45cd04ca397dbeaa0d18c490 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Fri, 30 Mar 2012 16:29:06 -0400 Subject: arch/tile: avoid accidentally unmasking NMI-type interrupt accidentally The return path as we reload registers and core state requires that r30 hold a boolean indicating whether we are returning from an NMI, but in a couple of cases we weren't setting this properly, with the result that we could accidentally unmask the NMI interrupt(s), which could cause confusion. Now we set r30 in every place where we jump into the interrupt return path. Signed-off-by: Chris Metcalf diff --git a/arch/tile/kernel/intvec_32.S b/arch/tile/kernel/intvec_32.S index aecc8ed..5d56a1e 100644 --- a/arch/tile/kernel/intvec_32.S +++ b/arch/tile/kernel/intvec_32.S @@ -799,6 +799,10 @@ handle_interrupt: * This routine takes a boolean in r30 indicating if this is an NMI. * If so, we also expect a boolean in r31 indicating whether to * re-enable the oprofile interrupts. + * + * Note that .Lresume_userspace is jumped to directly in several + * places, and we need to make sure r30 is set correctly in those + * callers as well. */ STD_ENTRY(interrupt_return) /* If we're resuming to kernel space, don't check thread flags. */ @@ -1237,7 +1241,10 @@ handle_syscall: bzt r30, 1f jal do_syscall_trace FEEDBACK_REENTER(handle_syscall) -1: j .Lresume_userspace /* jump into middle of interrupt_return */ +1: { + movei r30, 0 /* not an NMI */ + j .Lresume_userspace /* jump into middle of interrupt_return */ + } .Linvalid_syscall: /* Report an invalid syscall back to the user program */ @@ -1246,7 +1253,10 @@ handle_syscall: movei r28, -ENOSYS } sw r29, r28 - j .Lresume_userspace /* jump into middle of interrupt_return */ + { + movei r30, 0 /* not an NMI */ + j .Lresume_userspace /* jump into middle of interrupt_return */ + } STD_ENDPROC(handle_syscall) /* Return the address for oprofile to suppress in backtraces. */ @@ -1262,7 +1272,10 @@ STD_ENTRY(ret_from_fork) jal sim_notify_fork jal schedule_tail FEEDBACK_REENTER(ret_from_fork) - j .Lresume_userspace /* jump into middle of interrupt_return */ + { + movei r30, 0 /* not an NMI */ + j .Lresume_userspace /* jump into middle of interrupt_return */ + } STD_ENDPROC(ret_from_fork) /* @@ -1376,7 +1389,10 @@ handle_ill: jal send_sigtrap /* issue a SIGTRAP */ FEEDBACK_REENTER(handle_ill) - j .Lresume_userspace /* jump into middle of interrupt_return */ + { + movei r30, 0 /* not an NMI */ + j .Lresume_userspace /* jump into middle of interrupt_return */ + } .Ldispatch_normal_ill: { diff --git a/arch/tile/kernel/intvec_64.S b/arch/tile/kernel/intvec_64.S index fdff17c..49d9d66 100644 --- a/arch/tile/kernel/intvec_64.S +++ b/arch/tile/kernel/intvec_64.S @@ -606,6 +606,10 @@ handle_interrupt: * This routine takes a boolean in r30 indicating if this is an NMI. * If so, we also expect a boolean in r31 indicating whether to * re-enable the oprofile interrupts. + * + * Note that .Lresume_userspace is jumped to directly in several + * places, and we need to make sure r30 is set correctly in those + * callers as well. */ STD_ENTRY(interrupt_return) /* If we're resuming to kernel space, don't check thread flags. */ @@ -1058,7 +1062,10 @@ handle_syscall: } FEEDBACK_REENTER(handle_syscall) -2: j .Lresume_userspace /* jump into middle of interrupt_return */ +2: { + movei r30, 0 /* not an NMI */ + j .Lresume_userspace /* jump into middle of interrupt_return */ + } .Lcompat_syscall: /* @@ -1092,7 +1099,10 @@ handle_syscall: movei r28, -ENOSYS } st r29, r28 - j .Lresume_userspace /* jump into middle of interrupt_return */ + { + movei r30, 0 /* not an NMI */ + j .Lresume_userspace /* jump into middle of interrupt_return */ + } STD_ENDPROC(handle_syscall) /* Return the address for oprofile to suppress in backtraces. */ @@ -1108,7 +1118,10 @@ STD_ENTRY(ret_from_fork) jal sim_notify_fork jal schedule_tail FEEDBACK_REENTER(ret_from_fork) - j .Lresume_userspace + { + movei r30, 0 /* not an NMI */ + j .Lresume_userspace /* jump into middle of interrupt_return */ + } STD_ENDPROC(ret_from_fork) /* Various stub interrupt handlers and syscall handlers */ -- cgit v0.10.2 From e2e110d7596656e2badd21c48713bd01e1b40f44 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Fri, 30 Mar 2012 18:58:37 -0400 Subject: edac: say "TILEGx" not "TILEPro" for the tilegx edac driver This is just an aesthetic change but it was silly to say TILEPro when booting up on the tilegx architecture. Signed-off-by: Chris Metcalf diff --git a/drivers/edac/tile_edac.c b/drivers/edac/tile_edac.c index 1d5cf06..e99d009 100644 --- a/drivers/edac/tile_edac.c +++ b/drivers/edac/tile_edac.c @@ -145,7 +145,11 @@ static int __devinit tile_edac_mc_probe(struct platform_device *pdev) mci->edac_ctl_cap = EDAC_FLAG_SECDED; mci->mod_name = DRV_NAME; +#ifdef __tilegx__ + mci->ctl_name = "TILEGx_Memory_Controller"; +#else mci->ctl_name = "TILEPro_Memory_Controller"; +#endif mci->dev_name = dev_name(&pdev->dev); mci->edac_check = tile_edac_check; -- cgit v0.10.2 From 16418bb1da8a685e639c6c4f2d3096f762e8b0fb Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Fri, 30 Mar 2012 19:03:04 -0400 Subject: tile-srom.c driver: minor code cleanup Signed-off-by: Chris Metcalf diff --git a/drivers/char/tile-srom.c b/drivers/char/tile-srom.c index 4dc0194..3b22a60 100644 --- a/drivers/char/tile-srom.c +++ b/drivers/char/tile-srom.c @@ -194,17 +194,17 @@ static ssize_t srom_read(struct file *filp, char __user *buf, hv_retval = _srom_read(srom->hv_devhdl, kernbuf, *f_pos, bytes_this_pass); - if (hv_retval > 0) { - if (copy_to_user(buf, kernbuf, hv_retval) != 0) { - retval = -EFAULT; - break; - } - } else if (hv_retval <= 0) { + if (hv_retval <= 0) { if (retval == 0) retval = hv_retval; break; } + if (copy_to_user(buf, kernbuf, hv_retval) != 0) { + retval = -EFAULT; + break; + } + retval += hv_retval; *f_pos += hv_retval; buf += hv_retval; -- cgit v0.10.2 From 92795672898d5ee1faa557c498c078123d20e827 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Fri, 30 Mar 2012 19:23:35 -0400 Subject: tilepro ethernet driver: fix a few minor issues This commit fixes a number of issues seen with the driver: - Improve handling of return credits to the hardware shim - Use skb_frag_size() appropriately - Fix driver so it works properly with netpoll for console over UDP Signed-off-by: Chris Metcalf diff --git a/drivers/net/ethernet/tile/tilepro.c b/drivers/net/ethernet/tile/tilepro.c index 261356c..75e5905 100644 --- a/drivers/net/ethernet/tile/tilepro.c +++ b/drivers/net/ethernet/tile/tilepro.c @@ -342,6 +342,21 @@ inline int __netio_fastio1(u32 fastio_index, u32 arg0) } +static void tile_net_return_credit(struct tile_net_cpu *info) +{ + struct tile_netio_queue *queue = &info->queue; + netio_queue_user_impl_t *qup = &queue->__user_part; + + /* Return four credits after every fourth packet. */ + if (--qup->__receive_credit_remaining == 0) { + u32 interval = qup->__receive_credit_interval; + qup->__receive_credit_remaining = interval; + __netio_fastio_return_credits(qup->__fastio_index, interval); + } +} + + + /* * Provide a linux buffer to LIPP. */ @@ -864,19 +879,11 @@ static bool tile_net_poll_aux(struct tile_net_cpu *info, int index) stats->rx_packets++; stats->rx_bytes += len; - - if (small) - info->num_needed_small_buffers++; - else - info->num_needed_large_buffers++; } - /* Return four credits after every fourth packet. */ - if (--qup->__receive_credit_remaining == 0) { - u32 interval = qup->__receive_credit_interval; - qup->__receive_credit_remaining = interval; - __netio_fastio_return_credits(qup->__fastio_index, interval); - } + /* ISSUE: It would be nice to defer this until the packet has */ + /* actually been processed. */ + tile_net_return_credit(info); /* Consume this packet. */ qup->__packet_receive_read = index2; @@ -1543,7 +1550,7 @@ static int tile_net_drain_lipp_buffers(struct tile_net_priv *priv) /* Drain all the LIPP buffers. */ while (true) { - int buffer; + unsigned int buffer; /* NOTE: This should never fail. */ if (hv_dev_pread(priv->hv_devhdl, 0, (HV_VirtAddr)&buffer, @@ -1707,7 +1714,7 @@ static unsigned int tile_net_tx_frags(lepp_frag_t *frags, if (!hash_default) { void *va = pfn_to_kaddr(pfn) + f->page_offset; BUG_ON(PageHighMem(skb_frag_page(f))); - finv_buffer_remote(va, f->size, 0); + finv_buffer_remote(va, skb_frag_size(f), 0); } cpa = ((phys_addr_t)pfn << PAGE_SHIFT) + f->page_offset; @@ -1735,8 +1742,8 @@ static unsigned int tile_net_tx_frags(lepp_frag_t *frags, * Sometimes, if "sendfile()" requires copying, we will be called with * "data" containing the header and payload, with "frags" being empty. * - * In theory, "sh->nr_frags" could be 3, but in practice, it seems - * that this will never actually happen. + * Sometimes, for example when using NFS over TCP, a single segment can + * span 3 fragments, which must be handled carefully in LEPP. * * See "emulate_large_send_offload()" for some reference code, which * does not handle checksumming. @@ -1844,10 +1851,8 @@ static int tile_net_tx_tso(struct sk_buff *skb, struct net_device *dev) spin_lock_irqsave(&priv->eq_lock, irqflags); - /* - * Handle completions if needed to make room. - * HACK: Spin until there is sufficient room. - */ + /* Handle completions if needed to make room. */ + /* NOTE: Return NETDEV_TX_BUSY if there is still no room. */ if (lepp_num_free_comp_slots(eq) == 0) { nolds = tile_net_lepp_grab_comps(eq, olds, wanted, 0); if (nolds == 0) { @@ -1861,6 +1866,7 @@ busy: cmd_tail = eq->cmd_tail; /* Prepare to advance, detecting full queue. */ + /* NOTE: Return NETDEV_TX_BUSY if the queue is full. */ cmd_next = cmd_tail + cmd_size; if (cmd_tail < cmd_head && cmd_next >= cmd_head) goto busy; @@ -2023,10 +2029,8 @@ static int tile_net_tx(struct sk_buff *skb, struct net_device *dev) spin_lock_irqsave(&priv->eq_lock, irqflags); - /* - * Handle completions if needed to make room. - * HACK: Spin until there is sufficient room. - */ + /* Handle completions if needed to make room. */ + /* NOTE: Return NETDEV_TX_BUSY if there is still no room. */ if (lepp_num_free_comp_slots(eq) == 0) { nolds = tile_net_lepp_grab_comps(eq, olds, wanted, 0); if (nolds == 0) { @@ -2040,6 +2044,7 @@ busy: cmd_tail = eq->cmd_tail; /* Copy the commands, or fail. */ + /* NOTE: Return NETDEV_TX_BUSY if the queue is full. */ for (i = 0; i < num_frags; i++) { /* Prepare to advance, detecting full queue. */ @@ -2261,6 +2266,23 @@ static int tile_net_get_mac(struct net_device *dev) return 0; } + +#ifdef CONFIG_NET_POLL_CONTROLLER +/* + * Polling 'interrupt' - used by things like netconsole to send skbs + * without having to re-enable interrupts. It's not called while + * the interrupt routine is executing. + */ +static void tile_net_netpoll(struct net_device *dev) +{ + struct tile_net_priv *priv = netdev_priv(dev); + disable_percpu_irq(priv->intr_id); + tile_net_handle_ingress_interrupt(priv->intr_id, dev); + enable_percpu_irq(priv->intr_id, 0); +} +#endif + + static const struct net_device_ops tile_net_ops = { .ndo_open = tile_net_open, .ndo_stop = tile_net_stop, @@ -2269,7 +2291,10 @@ static const struct net_device_ops tile_net_ops = { .ndo_get_stats = tile_net_get_stats, .ndo_change_mtu = tile_net_change_mtu, .ndo_tx_timeout = tile_net_tx_timeout, - .ndo_set_mac_address = tile_net_set_mac_address + .ndo_set_mac_address = tile_net_set_mac_address, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = tile_net_netpoll, +#endif }; @@ -2409,7 +2434,7 @@ static void tile_net_cleanup(void) */ static int tile_net_init_module(void) { - pr_info("Tilera IPP Net Driver\n"); + pr_info("Tilera Network Driver\n"); tile_net_devs[0] = tile_net_dev_init("xgbe0"); tile_net_devs[1] = tile_net_dev_init("xgbe1"); -- cgit v0.10.2 From 91445c72cac7cb48f383fc6e44221e244cc32f6e Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Sat, 31 Mar 2012 09:46:03 -0400 Subject: MAINTAINERS: update EDAC information The bluesmoke mailing list no longer works, so use linux-edac@vger.kernel.org. And, use a less restrictive pattern so all drivers/edac changes go to linux-edac as well. Borislav suggested I just push this through the tile tree since there is currently no core edac maintainer (emails to Doug Thompson bounce). Acked-by: Borislav Petkov Signed-off-by: Chris Metcalf diff --git a/MAINTAINERS b/MAINTAINERS index eecf344..ef04eaa 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2451,17 +2451,17 @@ F: fs/ecryptfs/ EDAC-CORE M: Doug Thompson -L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers) +L: linux-edac@vger.kernel.org W: bluesmoke.sourceforge.net S: Supported F: Documentation/edac.txt -F: drivers/edac/edac_* +F: drivers/edac/ F: include/linux/edac.h EDAC-AMD64 M: Doug Thompson M: Borislav Petkov -L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers) +L: linux-edac@vger.kernel.org W: bluesmoke.sourceforge.net S: Supported F: drivers/edac/amd64_edac* @@ -2469,35 +2469,35 @@ F: drivers/edac/amd64_edac* EDAC-E752X M: Mark Gross M: Doug Thompson -L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers) +L: linux-edac@vger.kernel.org W: bluesmoke.sourceforge.net S: Maintained F: drivers/edac/e752x_edac.c EDAC-E7XXX M: Doug Thompson -L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers) +L: linux-edac@vger.kernel.org W: bluesmoke.sourceforge.net S: Maintained F: drivers/edac/e7xxx_edac.c EDAC-I82443BXGX M: Tim Small -L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers) +L: linux-edac@vger.kernel.org W: bluesmoke.sourceforge.net S: Maintained F: drivers/edac/i82443bxgx_edac.c EDAC-I3000 M: Jason Uhlenkott -L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers) +L: linux-edac@vger.kernel.org W: bluesmoke.sourceforge.net S: Maintained F: drivers/edac/i3000_edac.c EDAC-I5000 M: Doug Thompson -L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers) +L: linux-edac@vger.kernel.org W: bluesmoke.sourceforge.net S: Maintained F: drivers/edac/i5000_edac.c @@ -2526,21 +2526,21 @@ F: drivers/edac/i7core_edac.c EDAC-I82975X M: Ranganathan Desikan M: "Arvind R." -L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers) +L: linux-edac@vger.kernel.org W: bluesmoke.sourceforge.net S: Maintained F: drivers/edac/i82975x_edac.c EDAC-PASEMI M: Egor Martovetsky -L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers) +L: linux-edac@vger.kernel.org W: bluesmoke.sourceforge.net S: Maintained F: drivers/edac/pasemi_edac.c EDAC-R82600 M: Tim Small -L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers) +L: linux-edac@vger.kernel.org W: bluesmoke.sourceforge.net S: Maintained F: drivers/edac/r82600_edac.c -- cgit v0.10.2 From 00a62d4bc9b9a0388abee5c5ea946b9631b149d5 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Mon, 2 Apr 2012 13:17:37 -0400 Subject: drivers/net/ethernet/tile: fix netdev_alloc_skb() bombing Commit dae2e9f430c46c29e3f771110094bd3da3625aa4 changed dev_alloc_skb() to netdev_alloc_skb(), adding a dev pointer, but erroneously used "->" instead of "." for a struct member when accessing the dev pointer. This change fixes the build breakage. Signed-off-by: Chris Metcalf diff --git a/drivers/net/ethernet/tile/tilepro.c b/drivers/net/ethernet/tile/tilepro.c index 75e5905..3d501ec 100644 --- a/drivers/net/ethernet/tile/tilepro.c +++ b/drivers/net/ethernet/tile/tilepro.c @@ -448,7 +448,7 @@ static bool tile_net_provide_needed_buffer(struct tile_net_cpu *info, struct sk_buff **skb_ptr; /* Request 96 extra bytes for alignment purposes. */ - skb = netdev_alloc_skb(info->napi->dev, len + padding); + skb = netdev_alloc_skb(info->napi.dev, len + padding); if (skb == NULL) return false; -- cgit v0.10.2 From d2ef406866620f0450ad0b4c7fb5c2796c7bf245 Mon Sep 17 00:00:00 2001 From: Or Gerlitz Date: Mon, 2 Apr 2012 17:45:20 +0300 Subject: IB/mlx4: Don't return an invalid speed when a port is down When the IB port is down, the active_speed value returned by the MAD_IFC command is seven (7) which isn't among the defined IB speeds in enum ib_port_speed, and this invalid speed value is passed up to higher layers or applications who do port query. Fix that by setting the speed to be SDR -- the lowest possible -- when the port is down. Signed-off-by: Roland Dreier diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 75d3056..669673e 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -253,6 +253,11 @@ static int ib_link_query_port(struct ib_device *ibdev, u8 port, if (out_mad->data[15] & 0x1) props->active_speed = IB_SPEED_FDR10; } + + /* Avoid wrong speed value returned by FW if the IB link is down. */ + if (props->state == IB_PORT_DOWN) + props->active_speed = IB_SPEED_SDR; + out: kfree(in_mad); kfree(out_mad); -- cgit v0.10.2 From 0559d8dc13a1cd68b5e64c0b61659f36c7b5c89f Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Mon, 2 Apr 2012 10:57:31 -0700 Subject: IB/core: Don't return EINVAL from sysfs rate attribute for invalid speeds Commit e9319b0cb00d ("IB/core: Fix SDR rates in sysfs") changed our sysfs rate attribute to return EINVAL to userspace if the underlying device driver returns an invalid rate. Apparently some drivers do this when the link is down and some userspace pukes if it gets an error when reading this attribute, so avoid a regression by not return an error to match the old code. Signed-off-by: Roland Dreier diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c index 83b720e..246fdc1 100644 --- a/drivers/infiniband/core/sysfs.c +++ b/drivers/infiniband/core/sysfs.c @@ -179,7 +179,7 @@ static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused, { struct ib_port_attr attr; char *speed = ""; - int rate = -1; /* in deci-Gb/sec */ + int rate; /* in deci-Gb/sec */ ssize_t ret; ret = ib_query_port(p->ibdev, p->port_num, &attr); @@ -187,9 +187,6 @@ static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused, return ret; switch (attr.active_speed) { - case IB_SPEED_SDR: - rate = 25; - break; case IB_SPEED_DDR: speed = " DDR"; rate = 50; @@ -210,6 +207,10 @@ static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused, speed = " EDR"; rate = 250; break; + case IB_SPEED_SDR: + default: /* default to SDR for invalid rates */ + rate = 25; + break; } rate *= ib_width_enum_to_int(attr.active_width); -- cgit v0.10.2 From b443caf12f9ee14e9843e53d4d929319e637275a Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Sun, 1 Apr 2012 16:38:38 -0400 Subject: ARM: mach-msm: fix compile fail from system.h fallout To fix: In file included from arm/boot/compressed/misc.c:28:0: arm/mach-msm/include/mach/uncompress.h: In function 'putc': arch/arm/mach-msm/include/mach/uncompress.h:48:3: error: implicit declaration of function 'smp_mb' [-Werror=implicit-function-declaration] The putc does a cpu_relax which for this platform is smp_mb. Bisect indicates the 1st failing commit as: 0195c00244dc ("Merge tag 'split-asm_system_h...") Signed-off-by: Paul Gortmaker Acked-by: David Howells Acked-by: David Brown Signed-off-by: Linus Torvalds diff --git a/arch/arm/mach-msm/include/mach/uncompress.h b/arch/arm/mach-msm/include/mach/uncompress.h index 169a840..c14011f 100644 --- a/arch/arm/mach-msm/include/mach/uncompress.h +++ b/arch/arm/mach-msm/include/mach/uncompress.h @@ -16,6 +16,7 @@ #ifndef __ASM_ARCH_MSM_UNCOMPRESS_H #define __ASM_ARCH_MSM_UNCOMPRESS_H +#include #include #include -- cgit v0.10.2 From 3d92e05118262379f76a220772b666dfddb77a9d Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Sun, 1 Apr 2012 16:38:40 -0400 Subject: avr32: fix build failures from mis-naming of atmel_nand.h Commit bf4289cba02b ("ATMEL: fix nand ecc support") indicated that it wanted to "Move platform data to a common header include/linux/platform_data/atmel_nand.h" and the new header even had re-include protectors with: #ifndef __ATMEL_NAND_H__ However, the file that was added was simply called atmel.h and this caused avr32 defconfig to fail with: In file included from arch/avr32/boards/atstk1000/setup.c:22: arch/avr32/mach-at32ap/include/mach/board.h:10:44: error: linux/platform_data/atmel_nand.h: No such file or directory In file included from arch/avr32/boards/atstk1000/setup.c:22: arch/avr32/mach-at32ap/include/mach/board.h:121: warning: 'struct atmel_nand_data' declared inside parameter list arch/avr32/mach-at32ap/include/mach/board.h:121: warning: its scope is only this definition or declaration, which is probably not what you want make[2]: *** [arch/avr32/boards/atstk1000/setup.o] Error 1 It seems the scope of the file contents will expand beyond just nand, so ignore the original intention, and fix up the users who reference the bad name with the _nand suffix. CC: Jean-Christophe PLAGNIOL-VILLARD CC: David Woodhouse Acked-by: Hans-Christian Egtvedt Signed-off-by: Paul Gortmaker Signed-off-by: Linus Torvalds diff --git a/arch/avr32/mach-at32ap/include/mach/board.h b/arch/avr32/mach-at32ap/include/mach/board.h index 7173386..70742ec 100644 --- a/arch/avr32/mach-at32ap/include/mach/board.h +++ b/arch/avr32/mach-at32ap/include/mach/board.h @@ -7,7 +7,7 @@ #include #include #include -#include +#include #define GPIO_PIN_NONE (-1) diff --git a/include/linux/platform_data/atmel.h b/include/linux/platform_data/atmel.h index d056263..b0f2c56 100644 --- a/include/linux/platform_data/atmel.h +++ b/include/linux/platform_data/atmel.h @@ -4,8 +4,8 @@ * GPL v2 Only */ -#ifndef __ATMEL_NAND_H__ -#define __ATMEL_NAND_H__ +#ifndef __ATMEL_H__ +#define __ATMEL_H__ #include @@ -24,4 +24,4 @@ struct atmel_nand_data { unsigned int num_parts; }; -#endif /* __ATMEL_NAND_H__ */ +#endif /* __ATMEL_H__ */ -- cgit v0.10.2 From 1512cdc3572dac34a1809764f9a646cde7e82407 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Sun, 1 Apr 2012 16:38:41 -0400 Subject: blackfin: fix cmpxchg build fails from system.h fallout Commit 3bed8d67469c ("Disintegrate asm/system.h for Blackfin [ver #2]") introduced arch/blackfin/include/asm/cmpxchg.h but has it also including the asm-generic one which causes this: CC arch/blackfin/kernel/asm-offsets.s In file included from arch/blackfin/include/asm/cmpxchg.h:125:0, from arch/blackfin/include/asm/atomic.h:10, from include/linux/atomic.h:4, from include/linux/spinlock.h:384, from include/linux/seqlock.h:29, from include/linux/time.h:8, from include/linux/timex.h:56, from include/linux/sched.h:57, from arch/blackfin/kernel/asm-offsets.c:10: include/asm-generic/cmpxchg.h:24:15: error: redefinition of '__xchg' arch/blackfin/include/asm/cmpxchg.h:82:29: note: previous definition of '__xchg' was here make[2]: *** [arch/blackfin/kernel/asm-offsets.s] Error 1 It really only needs two simple defines from asm-generic, so just use those instead. Cc: Bob Liu Cc: Mike Frysinger Signed-off-by: Paul Gortmaker Acked-by: David Howells Signed-off-by: Linus Torvalds diff --git a/arch/blackfin/include/asm/cmpxchg.h b/arch/blackfin/include/asm/cmpxchg.h index ba2484f..c05868c 100644 --- a/arch/blackfin/include/asm/cmpxchg.h +++ b/arch/blackfin/include/asm/cmpxchg.h @@ -122,7 +122,8 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr, (unsigned long)(n), sizeof(*(ptr)))) #define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) -#include +#define cmpxchg(ptr, o, n) cmpxchg_local((ptr), (o), (n)) +#define cmpxchg64(ptr, o, n) cmpxchg64_local((ptr), (o), (n)) #endif /* !CONFIG_SMP */ -- cgit v0.10.2 From 9e5228ce0b9619bde7dcd6c51fb26e2401cfe81a Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Sun, 1 Apr 2012 16:38:42 -0400 Subject: parisc: fix missing cmpxchg file error from system.h split Commit b4816afa3986 ("Move the asm-generic/system.h xchg() implementation to asm-generic/cmpxchg.h") introduced the concept of asm/cmpxchg.h but the parisc arch never got one. Fork the cmpxchg content out of the asm/atomic.h file to create one. Some minor whitespace fixups were done on the block of code that created the new file. Cc: "James E.J. Bottomley" Cc: Helge Deller Signed-off-by: Paul Gortmaker Acked-by: David Howells Signed-off-by: Linus Torvalds diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h index 3ae5607..6c6defc 100644 --- a/arch/parisc/include/asm/atomic.h +++ b/arch/parisc/include/asm/atomic.h @@ -6,6 +6,7 @@ #define _ASM_PARISC_ATOMIC_H_ #include +#include /* * Atomic operations that C can't guarantee us. Useful for @@ -48,112 +49,6 @@ extern arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned; # define _atomic_spin_unlock_irqrestore(l,f) do { local_irq_restore(f); } while (0) #endif -/* This should get optimized out since it's never called. -** Or get a link error if xchg is used "wrong". -*/ -extern void __xchg_called_with_bad_pointer(void); - - -/* __xchg32/64 defined in arch/parisc/lib/bitops.c */ -extern unsigned long __xchg8(char, char *); -extern unsigned long __xchg32(int, int *); -#ifdef CONFIG_64BIT -extern unsigned long __xchg64(unsigned long, unsigned long *); -#endif - -/* optimizer better get rid of switch since size is a constant */ -static __inline__ unsigned long -__xchg(unsigned long x, __volatile__ void * ptr, int size) -{ - switch(size) { -#ifdef CONFIG_64BIT - case 8: return __xchg64(x,(unsigned long *) ptr); -#endif - case 4: return __xchg32((int) x, (int *) ptr); - case 1: return __xchg8((char) x, (char *) ptr); - } - __xchg_called_with_bad_pointer(); - return x; -} - - -/* -** REVISIT - Abandoned use of LDCW in xchg() for now: -** o need to test sizeof(*ptr) to avoid clearing adjacent bytes -** o and while we are at it, could CONFIG_64BIT code use LDCD too? -** -** if (__builtin_constant_p(x) && (x == NULL)) -** if (((unsigned long)p & 0xf) == 0) -** return __ldcw(p); -*/ -#define xchg(ptr,x) \ - ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) - - -#define __HAVE_ARCH_CMPXCHG 1 - -/* bug catcher for when unsupported size is used - won't link */ -extern void __cmpxchg_called_with_bad_pointer(void); - -/* __cmpxchg_u32/u64 defined in arch/parisc/lib/bitops.c */ -extern unsigned long __cmpxchg_u32(volatile unsigned int *m, unsigned int old, unsigned int new_); -extern unsigned long __cmpxchg_u64(volatile unsigned long *ptr, unsigned long old, unsigned long new_); - -/* don't worry...optimizer will get rid of most of this */ -static __inline__ unsigned long -__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new_, int size) -{ - switch(size) { -#ifdef CONFIG_64BIT - case 8: return __cmpxchg_u64((unsigned long *)ptr, old, new_); -#endif - case 4: return __cmpxchg_u32((unsigned int *)ptr, (unsigned int) old, (unsigned int) new_); - } - __cmpxchg_called_with_bad_pointer(); - return old; -} - -#define cmpxchg(ptr,o,n) \ - ({ \ - __typeof__(*(ptr)) _o_ = (o); \ - __typeof__(*(ptr)) _n_ = (n); \ - (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_, \ - (unsigned long)_n_, sizeof(*(ptr))); \ - }) - -#include - -static inline unsigned long __cmpxchg_local(volatile void *ptr, - unsigned long old, - unsigned long new_, int size) -{ - switch (size) { -#ifdef CONFIG_64BIT - case 8: return __cmpxchg_u64((unsigned long *)ptr, old, new_); -#endif - case 4: return __cmpxchg_u32(ptr, old, new_); - default: - return __cmpxchg_local_generic(ptr, old, new_, size); - } -} - -/* - * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make - * them available. - */ -#define cmpxchg_local(ptr, o, n) \ - ((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o), \ - (unsigned long)(n), sizeof(*(ptr)))) -#ifdef CONFIG_64BIT -#define cmpxchg64_local(ptr, o, n) \ - ({ \ - BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ - cmpxchg_local((ptr), (o), (n)); \ - }) -#else -#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) -#endif - /* * Note that we need not lock read accesses - aligned word writes/reads * are atomic, so a reader never sees inconsistent values. diff --git a/arch/parisc/include/asm/cmpxchg.h b/arch/parisc/include/asm/cmpxchg.h new file mode 100644 index 0000000..dbd1335 --- /dev/null +++ b/arch/parisc/include/asm/cmpxchg.h @@ -0,0 +1,116 @@ +/* + * forked from parisc asm/atomic.h which was: + * Copyright (C) 2000 Philipp Rumpf + * Copyright (C) 2006 Kyle McMartin + */ + +#ifndef _ASM_PARISC_CMPXCHG_H_ +#define _ASM_PARISC_CMPXCHG_H_ + +/* This should get optimized out since it's never called. +** Or get a link error if xchg is used "wrong". +*/ +extern void __xchg_called_with_bad_pointer(void); + +/* __xchg32/64 defined in arch/parisc/lib/bitops.c */ +extern unsigned long __xchg8(char, char *); +extern unsigned long __xchg32(int, int *); +#ifdef CONFIG_64BIT +extern unsigned long __xchg64(unsigned long, unsigned long *); +#endif + +/* optimizer better get rid of switch since size is a constant */ +static inline unsigned long +__xchg(unsigned long x, __volatile__ void *ptr, int size) +{ + switch (size) { +#ifdef CONFIG_64BIT + case 8: return __xchg64(x, (unsigned long *) ptr); +#endif + case 4: return __xchg32((int) x, (int *) ptr); + case 1: return __xchg8((char) x, (char *) ptr); + } + __xchg_called_with_bad_pointer(); + return x; +} + +/* +** REVISIT - Abandoned use of LDCW in xchg() for now: +** o need to test sizeof(*ptr) to avoid clearing adjacent bytes +** o and while we are at it, could CONFIG_64BIT code use LDCD too? +** +** if (__builtin_constant_p(x) && (x == NULL)) +** if (((unsigned long)p & 0xf) == 0) +** return __ldcw(p); +*/ +#define xchg(ptr, x) \ + ((__typeof__(*(ptr)))__xchg((unsigned long)(x), (ptr), sizeof(*(ptr)))) + +#define __HAVE_ARCH_CMPXCHG 1 + +/* bug catcher for when unsupported size is used - won't link */ +extern void __cmpxchg_called_with_bad_pointer(void); + +/* __cmpxchg_u32/u64 defined in arch/parisc/lib/bitops.c */ +extern unsigned long __cmpxchg_u32(volatile unsigned int *m, unsigned int old, + unsigned int new_); +extern unsigned long __cmpxchg_u64(volatile unsigned long *ptr, + unsigned long old, unsigned long new_); + +/* don't worry...optimizer will get rid of most of this */ +static inline unsigned long +__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new_, int size) +{ + switch (size) { +#ifdef CONFIG_64BIT + case 8: return __cmpxchg_u64((unsigned long *)ptr, old, new_); +#endif + case 4: return __cmpxchg_u32((unsigned int *)ptr, + (unsigned int)old, (unsigned int)new_); + } + __cmpxchg_called_with_bad_pointer(); + return old; +} + +#define cmpxchg(ptr, o, n) \ +({ \ + __typeof__(*(ptr)) _o_ = (o); \ + __typeof__(*(ptr)) _n_ = (n); \ + (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_, \ + (unsigned long)_n_, sizeof(*(ptr))); \ +}) + +#include + +static inline unsigned long __cmpxchg_local(volatile void *ptr, + unsigned long old, + unsigned long new_, int size) +{ + switch (size) { +#ifdef CONFIG_64BIT + case 8: return __cmpxchg_u64((unsigned long *)ptr, old, new_); +#endif + case 4: return __cmpxchg_u32(ptr, old, new_); + default: + return __cmpxchg_local_generic(ptr, old, new_, size); + } +} + +/* + * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make + * them available. + */ +#define cmpxchg_local(ptr, o, n) \ + ((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o), \ + (unsigned long)(n), sizeof(*(ptr)))) +#ifdef CONFIG_64BIT +#define cmpxchg64_local(ptr, o, n) \ +({ \ + BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ + cmpxchg_local((ptr), (o), (n)); \ +}) +#else +#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) +#endif + +#endif /* _ASM_PARISC_CMPXCHG_H_ */ -- cgit v0.10.2 From 9a78da114c18c130769c1ba25cabbc34da7ad70c Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Sun, 1 Apr 2012 16:38:44 -0400 Subject: frv: fix warnings in mb93090-mb00/pci-dma.c about implicit EXPORT_SYMBOL To fix: arch/frv/mb93090-mb00/pci-dma.c:31:1: warning: data definition has no type or storage class [enabled by default] arch/frv/mb93090-mb00/pci-dma.c:31:1: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' [-Wimplicit-int] arch/frv/mb93090-mb00/pci-dma.c:31:1: warning: parameter names (without types) in function declaration [enabled by default] arch/frv/mb93090-mb00/pci-dma.c:38:1: warning: data definition has no type or storage class [enabled by default] Signed-off-by: Paul Gortmaker Acked-by: David Howells Signed-off-by: Linus Torvalds diff --git a/arch/frv/mb93090-mb00/pci-dma.c b/arch/frv/mb93090-mb00/pci-dma.c index 41098a3..4f8d8bc 100644 --- a/arch/frv/mb93090-mb00/pci-dma.c +++ b/arch/frv/mb93090-mb00/pci-dma.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include -- cgit v0.10.2 From f68c56b7d2351036d1ec58c7a0ac4f258cbc1fa2 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Sun, 1 Apr 2012 16:38:45 -0400 Subject: firewire: restore the device.h include in linux/firewire.h Commit 313162d0b838 ("device.h: audit and cleanup users in main include dir") exchanged an include for a struct *device but in actuality I misread this file when creating 313162d and it should have remained an include. There were no build regressions since all consumers were already getting device.h anyway, but make it right regardless. Reported-by: Stefan Richter Signed-off-by: Paul Gortmaker Signed-off-by: Linus Torvalds diff --git a/include/linux/firewire.h b/include/linux/firewire.h index 4db7b68..cdc9b71 100644 --- a/include/linux/firewire.h +++ b/include/linux/firewire.h @@ -2,6 +2,7 @@ #define _LINUX_FIREWIRE_H #include +#include #include #include #include @@ -64,8 +65,6 @@ #define CSR_MODEL 0x17 #define CSR_DIRECTORY_ID 0x20 -struct device; - struct fw_csr_iterator { const u32 *p; const u32 *end; -- cgit v0.10.2 From 80da6a4feeb9e4d6554f771f14f5b994e6c6c7e8 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Sun, 1 Apr 2012 16:38:47 -0400 Subject: asm-generic: add linux/types.h to cmpxchg.h Builds of the openrisc or1ksim_defconfig show the following: In file included from arch/openrisc/include/generated/asm/cmpxchg.h:1:0, from include/asm-generic/atomic.h:18, from arch/openrisc/include/generated/asm/atomic.h:1, from include/linux/atomic.h:4, from include/linux/dcache.h:4, from fs/notify/fsnotify.c:19: include/asm-generic/cmpxchg.h: In function '__xchg': include/asm-generic/cmpxchg.h:34:20: error: expected ')' before 'u8' include/asm-generic/cmpxchg.h:34:20: warning: type defaults to 'int' in type name and many more lines of similar errors. It seems specific to the or32 because most other platforms have an arch specific component that would have already included types.h ahead of time, but the o32 does not. Cc: Arnd Bergmann Cc: Jonas Bonn Signed-off-by: Paul Gortmaker Acked-by: David Howells diff --git a/include/asm-generic/cmpxchg.h b/include/asm-generic/cmpxchg.h index 8a36183..1488302 100644 --- a/include/asm-generic/cmpxchg.h +++ b/include/asm-generic/cmpxchg.h @@ -10,6 +10,7 @@ #error "Cannot use generic cmpxchg on SMP" #endif +#include #include #ifndef xchg -- cgit v0.10.2 From 085f1afc56619bda424941412fdeaff1e32c21dc Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Mon, 2 Apr 2012 09:01:40 +0000 Subject: tg3: Fix 5717 serdes powerdown problem If port 0 of a 5717 serdes device powers down, it hides the phy from port 1. This patch works around the problem by keeping port 0's phy powered up. Signed-off-by: Matt Carlson Signed-off-by: Michael Chan Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index 7b71387..d2ff8ee 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -2779,7 +2779,9 @@ static void tg3_power_down_phy(struct tg3 *tp, bool do_low_power) if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 || GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 || (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780 && - (tp->phy_flags & TG3_PHYFLG_MII_SERDES))) + (tp->phy_flags & TG3_PHYFLG_MII_SERDES)) || + (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 && + !tp->pci_fn)) return; if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX || -- cgit v0.10.2 From f0cdcf3ab6c62b3f774a2af15dfa01988e7a9b02 Mon Sep 17 00:00:00 2001 From: Zeng Zhaoming Date: Fri, 30 Mar 2012 00:13:02 +0800 Subject: ASoC: sgtl5000: Enable VAG when DAC/ADC up As manual described, VAG is an internal voltage reference of DAC/ADC, So enabled it before DAC/ADC up. One more thing should care about is VAG fully ramped down requires 400ms, wait it to avoid pop. Signed-off-by: Zeng Zhaoming Signed-off-by: Shawn Guo Signed-off-by: Mark Brown diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c index d192626..8e92fb8 100644 --- a/sound/soc/codecs/sgtl5000.c +++ b/sound/soc/codecs/sgtl5000.c @@ -143,11 +143,11 @@ static int mic_bias_event(struct snd_soc_dapm_widget *w, } /* - * using codec assist to small pop, hp_powerup or lineout_powerup - * should stay setting until vag_powerup is fully ramped down, - * vag fully ramped down require 400ms. + * As manual described, ADC/DAC only works when VAG powerup, + * So enabled VAG before ADC/DAC up. + * In power down case, we need wait 400ms when vag fully ramped down. */ -static int small_pop_event(struct snd_soc_dapm_widget *w, +static int power_vag_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { switch (event) { @@ -156,7 +156,7 @@ static int small_pop_event(struct snd_soc_dapm_widget *w, SGTL5000_VAG_POWERUP, SGTL5000_VAG_POWERUP); break; - case SND_SOC_DAPM_PRE_PMD: + case SND_SOC_DAPM_POST_PMD: snd_soc_update_bits(w->codec, SGTL5000_CHIP_ANA_POWER, SGTL5000_VAG_POWERUP, 0); msleep(400); @@ -201,12 +201,8 @@ static const struct snd_soc_dapm_widget sgtl5000_dapm_widgets[] = { mic_bias_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), - SND_SOC_DAPM_PGA_E("HP", SGTL5000_CHIP_ANA_POWER, 4, 0, NULL, 0, - small_pop_event, - SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD), - SND_SOC_DAPM_PGA_E("LO", SGTL5000_CHIP_ANA_POWER, 0, 0, NULL, 0, - small_pop_event, - SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD), + SND_SOC_DAPM_PGA("HP", SGTL5000_CHIP_ANA_POWER, 4, 0, NULL, 0), + SND_SOC_DAPM_PGA("LO", SGTL5000_CHIP_ANA_POWER, 0, 0, NULL, 0), SND_SOC_DAPM_MUX("Capture Mux", SND_SOC_NOPM, 0, 0, &adc_mux), SND_SOC_DAPM_MUX("Headphone Mux", SND_SOC_NOPM, 0, 0, &dac_mux), @@ -221,8 +217,11 @@ static const struct snd_soc_dapm_widget sgtl5000_dapm_widgets[] = { 0, SGTL5000_CHIP_DIG_POWER, 1, 0), - SND_SOC_DAPM_ADC("ADC", "Capture", SGTL5000_CHIP_ANA_POWER, 1, 0), + SND_SOC_DAPM_SUPPLY("VAG_POWER", SGTL5000_CHIP_ANA_POWER, 7, 0, + power_vag_event, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), + SND_SOC_DAPM_ADC("ADC", "Capture", SGTL5000_CHIP_ANA_POWER, 1, 0), SND_SOC_DAPM_DAC("DAC", "Playback", SGTL5000_CHIP_ANA_POWER, 3, 0), }; @@ -231,9 +230,11 @@ static const struct snd_soc_dapm_route sgtl5000_dapm_routes[] = { {"Capture Mux", "LINE_IN", "LINE_IN"}, /* line_in --> adc_mux */ {"Capture Mux", "MIC_IN", "MIC_IN"}, /* mic_in --> adc_mux */ + {"ADC", NULL, "VAG_POWER"}, {"ADC", NULL, "Capture Mux"}, /* adc_mux --> adc */ {"AIFOUT", NULL, "ADC"}, /* adc --> i2s_out */ + {"DAC", NULL, "VAG_POWER"}, {"DAC", NULL, "AIFIN"}, /* i2s-->dac,skip audio mux */ {"Headphone Mux", "DAC", "DAC"}, /* dac --> hp_mux */ {"LO", NULL, "DAC"}, /* dac --> line_out */ -- cgit v0.10.2 From cd1506736f3a77429f619ede817a119a7ff5f7e5 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Fri, 30 Mar 2012 17:07:17 -0600 Subject: ASoC: tegra: ensure clocks are enabled when touching registers Debugfs files could be accessed any time, so explicitly enable clocks when reading registers to generate debugfs file content. Signed-off-by: Stephen Warren Signed-off-by: Mark Brown diff --git a/sound/soc/tegra/tegra_i2s.c b/sound/soc/tegra/tegra_i2s.c index 33509de..2d98c92 100644 --- a/sound/soc/tegra/tegra_i2s.c +++ b/sound/soc/tegra/tegra_i2s.c @@ -79,11 +79,15 @@ static int tegra_i2s_show(struct seq_file *s, void *unused) struct tegra_i2s *i2s = s->private; int i; + clk_enable(i2s->clk_i2s); + for (i = 0; i < ARRAY_SIZE(regs); i++) { u32 val = tegra_i2s_read(i2s, regs[i].offset); seq_printf(s, "%s = %08x\n", regs[i].name, val); } + clk_disable(i2s->clk_i2s); + return 0; } diff --git a/sound/soc/tegra/tegra_spdif.c b/sound/soc/tegra/tegra_spdif.c index 475428c..9ff2c60 100644 --- a/sound/soc/tegra/tegra_spdif.c +++ b/sound/soc/tegra/tegra_spdif.c @@ -79,11 +79,15 @@ static int tegra_spdif_show(struct seq_file *s, void *unused) struct tegra_spdif *spdif = s->private; int i; + clk_enable(spdif->clk_spdif_out); + for (i = 0; i < ARRAY_SIZE(regs); i++) { u32 val = tegra_spdif_read(spdif, regs[i].offset); seq_printf(s, "%s = %08x\n", regs[i].name, val); } + clk_disable(spdif->clk_spdif_out); + return 0; } -- cgit v0.10.2 From e95cee0e36c671db2804f2763b547a86930061ea Mon Sep 17 00:00:00 2001 From: Martin Jansa Date: Mon, 2 Apr 2012 10:24:08 +0200 Subject: ASoC: pxa: pxa2xx-i2s: add io.h for IOMEM macro * fixes sound/soc/pxa/pxa2xx-i2s.c:86:2: error: implicit declaration of function 'IOMEM' [-Werror=implicit-function-declaration] sound/soc/pxa/pxa2xx-i2s.c:86:2: error: initializer element is not constant after 23019a733bb83c8499f192fb428b7e6e81c95a34 removed IOMEM definition from arch/arm/mach-pxa/include/mach/hardware.h Signed-off-by: Martin Jansa Signed-off-by: Mark Brown diff --git a/sound/soc/pxa/pxa2xx-i2s.c b/sound/soc/pxa/pxa2xx-i2s.c index 609abd5..d085837 100644 --- a/sound/soc/pxa/pxa2xx-i2s.c +++ b/sound/soc/pxa/pxa2xx-i2s.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include #include -- cgit v0.10.2 From c0d78c23423ee6ec774ac53f129e61839dde1908 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Mon, 2 Apr 2012 14:57:01 +0800 Subject: regulator: anatop: fix 'anatop_regulator' name collision There is a name collision between 'struct platform_driver anatop_regulator' and 'struct anatop_regulator', which causes some section mismatch warnings like below. WARNING: vmlinux.o(.data+0x154d4): Section mismatch in reference from the variable anatop_regulator to the function .devinit.text:anatop_regulator_probe() The variable anatop_regulator references the function __devinit anatop_regulator_probe() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console Rename 'struct platform_driver anatop_regulator' to 'struct platform_driver anatop_regulator_driver' to fix the warnings. Signed-off-by: Shawn Guo Cc: Ying-Chun Liu (PaulLiu) Signed-off-by: Mark Brown diff --git a/drivers/regulator/anatop-regulator.c b/drivers/regulator/anatop-regulator.c index 17499a5..e365d11 100644 --- a/drivers/regulator/anatop-regulator.c +++ b/drivers/regulator/anatop-regulator.c @@ -213,7 +213,7 @@ static struct of_device_id __devinitdata of_anatop_regulator_match_tbl[] = { { /* end */ } }; -static struct platform_driver anatop_regulator = { +static struct platform_driver anatop_regulator_driver = { .driver = { .name = "anatop_regulator", .owner = THIS_MODULE, @@ -225,13 +225,13 @@ static struct platform_driver anatop_regulator = { static int __init anatop_regulator_init(void) { - return platform_driver_register(&anatop_regulator); + return platform_driver_register(&anatop_regulator_driver); } postcore_initcall(anatop_regulator_init); static void __exit anatop_regulator_exit(void) { - platform_driver_unregister(&anatop_regulator); + platform_driver_unregister(&anatop_regulator_driver); } module_exit(anatop_regulator_exit); -- cgit v0.10.2 From 2240eb4ae3dc4acff20d1a8947c441c451513e37 Mon Sep 17 00:00:00 2001 From: Lino Sanfilippo Date: Fri, 30 Mar 2012 07:28:59 +0000 Subject: sky2: dont overwrite settings for PHY Quick link This patch corrects a bug in function sky2_open() of the Marvell Yukon 2 driver in which the settings for PHY quick link are overwritten. Signed-off-by: Lino Sanfilippo Acked-by: Stephen Hemminger Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c index 423a1a2..b806d9b 100644 --- a/drivers/net/ethernet/marvell/sky2.c +++ b/drivers/net/ethernet/marvell/sky2.c @@ -1767,13 +1767,14 @@ static int sky2_open(struct net_device *dev) sky2_hw_up(sky2); + /* Enable interrupts from phy/mac for port */ + imask = sky2_read32(hw, B0_IMSK); + if (hw->chip_id == CHIP_ID_YUKON_OPT || hw->chip_id == CHIP_ID_YUKON_PRM || hw->chip_id == CHIP_ID_YUKON_OP_2) imask |= Y2_IS_PHY_QLNK; /* enable PHY Quick Link */ - /* Enable interrupts from phy/mac for port */ - imask = sky2_read32(hw, B0_IMSK); imask |= portirq_msk[port]; sky2_write32(hw, B0_IMSK, imask); sky2_read32(hw, B0_IMSK); -- cgit v0.10.2 From f283d22713b0bdc147097c92c9b45855339cf1c8 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Sun, 1 Apr 2012 20:19:30 +1000 Subject: APM: fix deadlock in APM_IOC_SUSPEND ioctl I found the Xorg server on my ARM device stuck in the 'msleep()' loop in apm_ioctl. I suspect it had attempted suspend immediately after resuming and lost a race. During that msleep(10);, a new suspend cycle must have started and changed ->suspend_state to SUSPEND_PENDING, so it was never seen to be SUSPEND_DONE and the loop could never exited. It would have moved on to SUSPEND_ACKTO but never been able to reach SUSPEND_DONE. So change the loop to only run while SUSPEND_ACKED rather than until SUSPEND_DONE. This is much safer. Signed-off-by: NeilBrown Signed-off-by: Jiri Kosina diff --git a/drivers/char/apm-emulation.c b/drivers/char/apm-emulation.c index f4837a8..6005c5c 100644 --- a/drivers/char/apm-emulation.c +++ b/drivers/char/apm-emulation.c @@ -302,7 +302,7 @@ apm_ioctl(struct file *filp, u_int cmd, u_long arg) * anything critical, chill a bit on each iteration. */ while (wait_event_freezable(apm_suspend_waitqueue, - as->suspend_state == SUSPEND_DONE)) + as->suspend_state != SUSPEND_ACKED)) msleep(10); break; case SUSPEND_ACKTO: -- cgit v0.10.2 From ee5324ea33d373558da43a22f3c1074a5fd5496e Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Mon, 2 Apr 2012 19:48:25 -0400 Subject: ARM: versatile: fix build failure in pci.c commit 9f786d033d025ab7d2c4d1b959aa81d935eb9e19 "arm/PCI: get rid of device resource fixups" causes this failure on the versatile: arch/arm/mach-versatile/pci.c: In function 'pci_versatile_setup_resources': arch/arm/mach-versatile/pci.c:221: error: 'sys' undeclared (first use in this function) because the versatile wasn't passing in the full struct pci_sys_data but only the resource sub-field. Change it to pass in the full struct so that sys will be in scope. Reported-by: Bruce Ashfield Signed-off-by: Paul Gortmaker Signed-off-by: Olof Johansson diff --git a/arch/arm/mach-versatile/pci.c b/arch/arm/mach-versatile/pci.c index a6e23f4..d2268be8 100644 --- a/arch/arm/mach-versatile/pci.c +++ b/arch/arm/mach-versatile/pci.c @@ -190,7 +190,7 @@ static struct resource pre_mem = { .flags = IORESOURCE_MEM | IORESOURCE_PREFETCH, }; -static int __init pci_versatile_setup_resources(struct list_head *resources) +static int __init pci_versatile_setup_resources(struct pci_sys_data *sys) { int ret = 0; @@ -218,9 +218,9 @@ static int __init pci_versatile_setup_resources(struct list_head *resources) * the mem resource for this bus * the prefetch mem resource for this bus */ - pci_add_resource_offset(resources, &io_mem, sys->io_offset); - pci_add_resource_offset(resources, &non_mem, sys->mem_offset); - pci_add_resource_offset(resources, &pre_mem, sys->mem_offset); + pci_add_resource_offset(&sys->resources, &io_mem, sys->io_offset); + pci_add_resource_offset(&sys->resources, &non_mem, sys->mem_offset); + pci_add_resource_offset(&sys->resources, &pre_mem, sys->mem_offset); goto out; @@ -249,7 +249,7 @@ int __init pci_versatile_setup(int nr, struct pci_sys_data *sys) if (nr == 0) { sys->mem_offset = 0; - ret = pci_versatile_setup_resources(&sys->resources); + ret = pci_versatile_setup_resources(sys); if (ret < 0) { printk("pci_versatile_setup: resources... oops?\n"); goto out; -- cgit v0.10.2 From beca98c93dc8d838c3656bc62fd49b45622ef788 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Mon, 2 Apr 2012 18:17:17 -0400 Subject: ARM: fix lcd power build failure in collie_defconfig Commit 086ada54abaa4316e8603f02410fe8ebc9ba2de1 "FB: sa1100: remove global sa1100fb_.*_power function pointers" got rid of all instances but one in locomolcd.c -- which was conditional on CONFIG_SA1100_COLLIE. The associated .power field which replaces the global is populated in mach-sa1100/collie.c so move the assignment there, but make it conditional on the locomolcd support, so use CONFIG_BACKLIGHT_LOCOMO in that file. Cc: arm@kernel.org Acked-by: Russell King Signed-off-by: Paul Gortmaker Signed-off-by: Olof Johansson diff --git a/arch/arm/mach-sa1100/collie.c b/arch/arm/mach-sa1100/collie.c index 48885b7..c7f418b 100644 --- a/arch/arm/mach-sa1100/collie.c +++ b/arch/arm/mach-sa1100/collie.c @@ -313,6 +313,10 @@ static struct sa1100fb_mach_info collie_lcd_info = { .lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act, .lccr3 = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2), + +#ifdef CONFIG_BACKLIGHT_LOCOMO + .lcd_power = locomolcd_power +#endif }; static void __init collie_init(void) diff --git a/arch/arm/mach-sa1100/include/mach/collie.h b/arch/arm/mach-sa1100/include/mach/collie.h index 52acda7..f33679d 100644 --- a/arch/arm/mach-sa1100/include/mach/collie.h +++ b/arch/arm/mach-sa1100/include/mach/collie.h @@ -1,7 +1,7 @@ /* * arch/arm/mach-sa1100/include/mach/collie.h * - * This file contains the hardware specific definitions for Assabet + * This file contains the hardware specific definitions for Collie * Only include this file from SA1100-specific files. * * ChangeLog: @@ -13,6 +13,7 @@ #ifndef __ASM_ARCH_COLLIE_H #define __ASM_ARCH_COLLIE_H +extern void locomolcd_power(int on); #define COLLIE_SCOOP_GPIO_BASE (GPIO_MAX + 1) #define COLLIE_GPIO_CHARGE_ON (COLLIE_SCOOP_GPIO_BASE + 0) diff --git a/drivers/video/backlight/locomolcd.c b/drivers/video/backlight/locomolcd.c index be20b5c..3a6d541 100644 --- a/drivers/video/backlight/locomolcd.c +++ b/drivers/video/backlight/locomolcd.c @@ -229,14 +229,7 @@ static struct locomo_driver poodle_lcd_driver = { static int __init locomolcd_init(void) { - int ret = locomo_driver_register(&poodle_lcd_driver); - if (ret) - return ret; - -#ifdef CONFIG_SA1100_COLLIE - sa1100fb_lcd_power = locomolcd_power; -#endif - return 0; + return locomo_driver_register(&poodle_lcd_driver); } static void __exit locomolcd_exit(void) -- cgit v0.10.2 From 18b9837ea0dc3cf844c6c4196871ce91d047bddb Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Sun, 1 Apr 2012 23:48:38 +1000 Subject: md/raid5: fix handling of bad blocks during recovery. 1/ We can only treat a known-bad-block like a read-error if we have the data that belongs in that block. So fix that test. 2/ If we cannot recovery a stripe due to insufficient data, don't tell "md_done_sync" that the sync failed unless we really did fail something. If we successfully record bad blocks, that is success. Reported-by: "majianpeng" Signed-off-by: NeilBrown diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 23ac880..9799be8 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -2471,39 +2471,41 @@ handle_failed_sync(struct r5conf *conf, struct stripe_head *sh, int abort = 0; int i; - md_done_sync(conf->mddev, STRIPE_SECTORS, 0); clear_bit(STRIPE_SYNCING, &sh->state); s->syncing = 0; s->replacing = 0; /* There is nothing more to do for sync/check/repair. + * Don't even need to abort as that is handled elsewhere + * if needed, and not always wanted e.g. if there is a known + * bad block here. * For recover/replace we need to record a bad block on all * non-sync devices, or abort the recovery */ - if (!test_bit(MD_RECOVERY_RECOVER, &conf->mddev->recovery)) - return; - /* During recovery devices cannot be removed, so locking and - * refcounting of rdevs is not needed - */ - for (i = 0; i < conf->raid_disks; i++) { - struct md_rdev *rdev = conf->disks[i].rdev; - if (rdev - && !test_bit(Faulty, &rdev->flags) - && !test_bit(In_sync, &rdev->flags) - && !rdev_set_badblocks(rdev, sh->sector, - STRIPE_SECTORS, 0)) - abort = 1; - rdev = conf->disks[i].replacement; - if (rdev - && !test_bit(Faulty, &rdev->flags) - && !test_bit(In_sync, &rdev->flags) - && !rdev_set_badblocks(rdev, sh->sector, - STRIPE_SECTORS, 0)) - abort = 1; - } - if (abort) { - conf->recovery_disabled = conf->mddev->recovery_disabled; - set_bit(MD_RECOVERY_INTR, &conf->mddev->recovery); + if (test_bit(MD_RECOVERY_RECOVER, &conf->mddev->recovery)) { + /* During recovery devices cannot be removed, so + * locking and refcounting of rdevs is not needed + */ + for (i = 0; i < conf->raid_disks; i++) { + struct md_rdev *rdev = conf->disks[i].rdev; + if (rdev + && !test_bit(Faulty, &rdev->flags) + && !test_bit(In_sync, &rdev->flags) + && !rdev_set_badblocks(rdev, sh->sector, + STRIPE_SECTORS, 0)) + abort = 1; + rdev = conf->disks[i].replacement; + if (rdev + && !test_bit(Faulty, &rdev->flags) + && !test_bit(In_sync, &rdev->flags) + && !rdev_set_badblocks(rdev, sh->sector, + STRIPE_SECTORS, 0)) + abort = 1; + } + if (abort) + conf->recovery_disabled = + conf->mddev->recovery_disabled; } + md_done_sync(conf->mddev, STRIPE_SECTORS, !abort); } static int want_replace(struct stripe_head *sh, int disk_idx) @@ -3203,7 +3205,8 @@ static void analyse_stripe(struct stripe_head *sh, struct stripe_head_state *s) /* Not in-sync */; else if (is_bad) { /* also not in-sync */ - if (!test_bit(WriteErrorSeen, &rdev->flags)) { + if (!test_bit(WriteErrorSeen, &rdev->flags) && + test_bit(R5_UPTODATE, &dev->flags)) { /* treat as in-sync, but with a read error * which we can now try to correct */ -- cgit v0.10.2 From 24b961f811a3e790a9b93604d2594bfb6cce4fa4 Mon Sep 17 00:00:00 2001 From: Jes Sorensen Date: Sun, 1 Apr 2012 23:48:38 +1000 Subject: md: Avoid OOPS when reshaping raid1 to raid0 raid1 arrays do not have the notion of chunk size. Calculate the largest chunk sector size we can use to avoid a divide by zero OOPS when aligning the size of the new array to the chunk size. Signed-off-by: Jes Sorensen Signed-off-by: NeilBrown diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index c980945..de63a1f 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -632,6 +632,7 @@ static void *raid0_takeover_raid10(struct mddev *mddev) static void *raid0_takeover_raid1(struct mddev *mddev) { struct r0conf *priv_conf; + int chunksect; /* Check layout: * - (N - 1) mirror drives must be already faulty @@ -642,10 +643,25 @@ static void *raid0_takeover_raid1(struct mddev *mddev) return ERR_PTR(-EINVAL); } + /* + * a raid1 doesn't have the notion of chunk size, so + * figure out the largest suitable size we can use. + */ + chunksect = 64 * 2; /* 64K by default */ + + /* The array must be an exact multiple of chunksize */ + while (chunksect && (mddev->array_sectors & (chunksect - 1))) + chunksect >>= 1; + + if ((chunksect << 9) < PAGE_SIZE) + /* array size does not allow a suitable chunk size */ + return ERR_PTR(-EINVAL); + /* Set new parameters */ mddev->new_level = 0; mddev->new_layout = 0; - mddev->new_chunk_sectors = 128; /* by default set chunk size to 64k */ + mddev->new_chunk_sectors = chunksect; + mddev->chunk_sectors = chunksect; mddev->delta_disks = 1 - mddev->raid_disks; mddev->raid_disks = 1; /* make sure it will be not marked as dirty */ -- cgit v0.10.2 From a42f9d83b5c05dc6e678a1f0cd9767502c2c58de Mon Sep 17 00:00:00 2001 From: majianpeng Date: Mon, 2 Apr 2012 01:04:19 +1000 Subject: md/raid1:Remove unnecessary rcu_dereference(conf->mirrors[i].rdev). Because rde->nr_pending > 0,so can not remove this disk. And in any case, we aren't holding rcu_read_lock() Signed-off-by: majianpeng Signed-off-by: NeilBrown diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 2424408..8c420f1 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -2386,8 +2386,7 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, int *skipp int ok = 1; for (i = 0 ; i < conf->raid_disks * 2 ; i++) if (r1_bio->bios[i]->bi_end_io == end_sync_write) { - struct md_rdev *rdev = - rcu_dereference(conf->mirrors[i].rdev); + struct md_rdev *rdev = conf->mirrors[i].rdev; ok = rdev_set_badblocks(rdev, sector_nr, min_bad, 0 ) && ok; -- cgit v0.10.2 From c6d2e084c7411f61f2b446d94989e5aaf9879b0f Mon Sep 17 00:00:00 2001 From: majianpeng Date: Mon, 2 Apr 2012 01:16:59 +1000 Subject: md/raid5: Fix a bug about judging if the operation is syncing or replacing When create a raid5 using assume-clean and echo check or repair to sync_action.Then component disks did not operated IO but the raid check/resync faster than normal. Because the judgement in function analyse_stripe(): if (do_recovery || sh->sector >= conf->mddev->recovery_cp) s->syncing = 1; else s->replacing = 1; When check or repair,the recovery_cp == MaxSectore,so syncing equal zero not one. This bug was introduced by commit 9a3e1101b827 md/raid5: detect and handle replacements during recovery. so this patch is suitable for 3.3-stable. Cc: stable@vger.kernel.org Signed-off-by: majianpeng Signed-off-by: NeilBrown diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 9799be8..f351422 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3279,12 +3279,14 @@ static void analyse_stripe(struct stripe_head *sh, struct stripe_head_state *s) /* If there is a failed device being replaced, * we must be recovering. * else if we are after recovery_cp, we must be syncing + * else if MD_RECOVERY_REQUESTED is set, we also are syncing. * else we can only be replacing * sync and recovery both need to read all devices, and so * use the same flag. */ if (do_recovery || - sh->sector >= conf->mddev->recovery_cp) + sh->sector >= conf->mddev->recovery_cp || + test_bit(MD_RECOVERY_REQUESTED, &(conf->mddev->recovery))) s->syncing = 1; else s->replacing = 1; -- cgit v0.10.2 From 5020ad7d143ccfcf8149974096220d59e5572120 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 2 Apr 2012 01:39:05 +1000 Subject: md/raid1,raid10: don't compare excess byte during consistency check. When comparing two pages read from different legs of a mirror, only compare the bytes that were read, not the whole page. In most cases we read a whole page, but in some cases with bad blocks or odd sizes devices we might read fewer than that. This bug has been present "forever" but at worst it might cause a report of two many mismatches and generate a little bit extra resync IO, so there is no need to back-port to -stable kernels. Reported-by: majianpeng Signed-off-by: NeilBrown diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 8c420f1..d35e4c9 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1738,7 +1738,7 @@ static int process_checks(struct r1bio *r1_bio) s = sbio->bi_io_vec[j].bv_page; if (memcmp(page_address(p), page_address(s), - PAGE_SIZE)) + sbio->bi_io_vec[j].bv_len)) break; } } else diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 3540316..fff7821 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1821,7 +1821,7 @@ static void sync_request_write(struct mddev *mddev, struct r10bio *r10_bio) for (j = 0; j < vcnt; j++) if (memcmp(page_address(fbio->bi_io_vec[j].bv_page), page_address(tbio->bi_io_vec[j].bv_page), - PAGE_SIZE)) + fbio->bi_io_vec[j].bv_len)) break; if (j == vcnt) continue; -- cgit v0.10.2 From 7b8e6da46b921d30ac1553cac56d8fb74f0b431d Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Tue, 27 Mar 2012 16:50:42 +0200 Subject: perf/x86/p4: Add format attributes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Steven reported his P4 not booting properly, the missing format attributes cause a NULL ptr deref. Cure this by adding the missing format specification. I took the format description out of the comment near p4_config_pack*() and hope that comment is still relatively accurate. Reported-by: Steven Rostedt Reported-by: Bruno Prémont Tested-by: Steven Rostedt Signed-off-by: Peter Zijlstra Cc: Jiri Olsa Cc: Cyrill Gorcunov Cc: Lin Ming Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1332859842.16159.227.camel@twins Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/cpu/perf_event_p4.c b/arch/x86/kernel/cpu/perf_event_p4.c index ef484d9..a2dfacf 100644 --- a/arch/x86/kernel/cpu/perf_event_p4.c +++ b/arch/x86/kernel/cpu/perf_event_p4.c @@ -1271,6 +1271,17 @@ done: return num ? -EINVAL : 0; } +PMU_FORMAT_ATTR(cccr, "config:0-31" ); +PMU_FORMAT_ATTR(escr, "config:32-62"); +PMU_FORMAT_ATTR(ht, "config:63" ); + +static struct attribute *intel_p4_formats_attr[] = { + &format_attr_cccr.attr, + &format_attr_escr.attr, + &format_attr_ht.attr, + NULL, +}; + static __initconst const struct x86_pmu p4_pmu = { .name = "Netburst P4/Xeon", .handle_irq = p4_pmu_handle_irq, @@ -1305,6 +1316,8 @@ static __initconst const struct x86_pmu p4_pmu = { * the former idea is taken from OProfile code */ .perfctr_second_write = 1, + + .format_attrs = intel_p4_formats_attr, }; __init int p4_pmu_init(void) -- cgit v0.10.2 From b8e6f8ae511d88732247aa2af26bfd1bef21b2f4 Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Tue, 13 Mar 2012 19:59:39 +0100 Subject: KVM: PPC: Book3S: Compile fix for ppc32 in HIOR access code MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We were failing to compile on book3s_32 with the following errors: arch/powerpc/kvm/book3s_pr.c:883:45: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast] arch/powerpc/kvm/book3s_pr.c:898:79: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast] Fix this by explicity casting the u64 to long before we use it as a pointer. Also, on PPC32 we can not use get_user/put_user for 64bit wide variables, as there is no single instruction that could load or store variables that big. So instead, we have to use copy_from/to_user which works everywhere. Reported-by: Jörg Sommer Signed-off-by: Alexander Graf Signed-off-by: Paul Mackerras diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c index 642d885..a657c44 100644 --- a/arch/powerpc/kvm/book3s_pr.c +++ b/arch/powerpc/kvm/book3s_pr.c @@ -881,7 +881,8 @@ int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg) switch (reg->id) { case KVM_REG_PPC_HIOR: - r = put_user(to_book3s(vcpu)->hior, (u64 __user *)reg->addr); + r = copy_to_user((u64 __user *)(long)reg->addr, + &to_book3s(vcpu)->hior, sizeof(u64)); break; default: break; @@ -896,7 +897,8 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg) switch (reg->id) { case KVM_REG_PPC_HIOR: - r = get_user(to_book3s(vcpu)->hior, (u64 __user *)reg->addr); + r = copy_from_user(&to_book3s(vcpu)->hior, + (u64 __user *)(long)reg->addr, sizeof(u64)); if (!r) to_book3s(vcpu)->hior_explicit = true; break; -- cgit v0.10.2 From b4e51229d8a1e499fe65153766437152cca42053 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Fri, 3 Feb 2012 00:45:02 +0000 Subject: KVM: PPC: Book3S HV: Fix kvm_alloc_linear in case where no linears exist In kvm_alloc_linear we were using and deferencing ri after the list_for_each_entry had come to the end of the list. In that situation, ri is not really defined and probably points to the list head. This will happen every time if the free_linears list is empty, for instance. This led to a NULL pointer dereference crash in memset on POWER7 while trying to allocate an HPT in the case where no HPTs were preallocated. This fixes it by using a separate variable for the return value from the loop iterator. Signed-off-by: Paul Mackerras Signed-off-by: Alexander Graf Signed-off-by: Paul Mackerras diff --git a/arch/powerpc/kvm/book3s_hv_builtin.c b/arch/powerpc/kvm/book3s_hv_builtin.c index bed1279..e1b60f5 100644 --- a/arch/powerpc/kvm/book3s_hv_builtin.c +++ b/arch/powerpc/kvm/book3s_hv_builtin.c @@ -173,9 +173,9 @@ static void __init kvm_linear_init_one(ulong size, int count, int type) static struct kvmppc_linear_info *kvm_alloc_linear(int type) { - struct kvmppc_linear_info *ri; + struct kvmppc_linear_info *ri, *ret; - ri = NULL; + ret = NULL; spin_lock(&linear_lock); list_for_each_entry(ri, &free_linears, list) { if (ri->type != type) @@ -183,11 +183,12 @@ static struct kvmppc_linear_info *kvm_alloc_linear(int type) list_del(&ri->list); atomic_inc(&ri->use_count); + memset(ri->base_virt, 0, ri->npages << PAGE_SHIFT); + ret = ri; break; } spin_unlock(&linear_lock); - memset(ri->base_virt, 0, ri->npages << PAGE_SHIFT); - return ri; + return ret; } static void kvm_release_linear(struct kvmppc_linear_info *ri) -- cgit v0.10.2 From a5ddea0e78e76aa8d6354b9b0e51e652e21b8137 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Fri, 3 Feb 2012 00:53:21 +0000 Subject: KVM: PPC: Book3S HV: Save and restore CR in __kvmppc_vcore_entry The ABI specifies that CR fields CR2--CR4 are nonvolatile across function calls. Currently __kvmppc_vcore_entry doesn't save and restore the CR, leading to CR2--CR4 getting corrupted with guest values, possibly leading to incorrect behaviour in its caller. This adds instructions to save and restore CR at the points where we save and restore the nonvolatile GPRs. Signed-off-by: Paul Mackerras Signed-off-by: Alexander Graf Signed-off-by: Paul Mackerras diff --git a/arch/powerpc/kvm/book3s_hv_interrupts.S b/arch/powerpc/kvm/book3s_hv_interrupts.S index 3f7b674..d3fb4df 100644 --- a/arch/powerpc/kvm/book3s_hv_interrupts.S +++ b/arch/powerpc/kvm/book3s_hv_interrupts.S @@ -46,8 +46,10 @@ _GLOBAL(__kvmppc_vcore_entry) /* Save host state to the stack */ stdu r1, -SWITCH_FRAME_SIZE(r1) - /* Save non-volatile registers (r14 - r31) */ + /* Save non-volatile registers (r14 - r31) and CR */ SAVE_NVGPRS(r1) + mfcr r3 + std r3, _CCR(r1) /* Save host DSCR */ BEGIN_FTR_SECTION @@ -157,8 +159,10 @@ kvmppc_handler_highmem: * R13 = PACA */ - /* Restore non-volatile host registers (r14 - r31) */ + /* Restore non-volatile host registers (r14 - r31) and CR */ REST_NVGPRS(r1) + ld r4, _CCR(r1) + mtcr r4 addi r1, r1, SWITCH_FRAME_SIZE ld r0, PPC_LR_STKOFF(r1) -- cgit v0.10.2 From e1f8acf8380abfd52aefbfa524e74af5ce0c8492 Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Mon, 5 Mar 2012 16:00:28 +0100 Subject: KVM: PPC: Save/Restore CR over vcpu_run On PPC, CR2-CR4 are nonvolatile, thus have to be saved across function calls. We didn't respect that for any architecture until Paul spotted it in his patch for Book3S-HV. This patch saves/restores CR for all KVM capable PPC hosts. Signed-off-by: Alexander Graf Signed-off-by: Paul Mackerras diff --git a/arch/powerpc/kvm/book3s_interrupts.S b/arch/powerpc/kvm/book3s_interrupts.S index 0a8515a..3e35383 100644 --- a/arch/powerpc/kvm/book3s_interrupts.S +++ b/arch/powerpc/kvm/book3s_interrupts.S @@ -84,6 +84,10 @@ kvm_start_entry: /* Save non-volatile registers (r14 - r31) */ SAVE_NVGPRS(r1) + /* Save CR */ + mfcr r14 + stw r14, _CCR(r1) + /* Save LR */ PPC_STL r0, _LINK(r1) @@ -165,6 +169,9 @@ kvm_exit_loop: PPC_LL r4, _LINK(r1) mtlr r4 + lwz r14, _CCR(r1) + mtcr r14 + /* Restore non-volatile host registers (r14 - r31) */ REST_NVGPRS(r1) diff --git a/arch/powerpc/kvm/booke_interrupts.S b/arch/powerpc/kvm/booke_interrupts.S index 10d8ef6..c8c4b87 100644 --- a/arch/powerpc/kvm/booke_interrupts.S +++ b/arch/powerpc/kvm/booke_interrupts.S @@ -34,7 +34,8 @@ /* r2 is special: it holds 'current', and it made nonvolatile in the * kernel with the -ffixed-r2 gcc option. */ #define HOST_R2 12 -#define HOST_NV_GPRS 16 +#define HOST_CR 16 +#define HOST_NV_GPRS 20 #define HOST_NV_GPR(n) (HOST_NV_GPRS + ((n - 14) * 4)) #define HOST_MIN_STACK_SIZE (HOST_NV_GPR(31) + 4) #define HOST_STACK_SIZE (((HOST_MIN_STACK_SIZE + 15) / 16) * 16) /* Align. */ @@ -296,8 +297,10 @@ heavyweight_exit: /* Return to kvm_vcpu_run(). */ lwz r4, HOST_STACK_LR(r1) + lwz r5, HOST_CR(r1) addi r1, r1, HOST_STACK_SIZE mtlr r4 + mtcr r5 /* r3 still contains the return code from kvmppc_handle_exit(). */ blr @@ -314,6 +317,8 @@ _GLOBAL(__kvmppc_vcpu_run) stw r3, HOST_RUN(r1) mflr r3 stw r3, HOST_STACK_LR(r1) + mfcr r5 + stw r5, HOST_CR(r1) /* Save host non-volatile register state to stack. */ stw r14, HOST_NV_GPR(r14)(r1) -- cgit v0.10.2 From 592f5d87b3feee9d60411f19d583038c0c7670ad Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Tue, 13 Mar 2012 23:31:02 +0100 Subject: KVM: PPC: Book3S: PR: Fix preemption We were leaking preemption counters. Fix the code to always toggle between preempt and non-preempt properly. Signed-off-by: Alexander Graf Signed-off-by: Paul Mackerras diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c index a657c44..7759053 100644 --- a/arch/powerpc/kvm/book3s_pr.c +++ b/arch/powerpc/kvm/book3s_pr.c @@ -777,6 +777,7 @@ program_interrupt: } } + preempt_disable(); if (!(r & RESUME_HOST)) { /* To avoid clobbering exit_reason, only check for signals if * we aren't already exiting to userspace for some other @@ -798,8 +799,6 @@ program_interrupt: run->exit_reason = KVM_EXIT_INTR; r = -EINTR; } else { - preempt_disable(); - /* In case an interrupt came in that was triggered * from userspace (like DEC), we need to check what * to inject now! */ -- cgit v0.10.2 From 44b52bccf855b0706de624c29fc3d82ca954bb4e Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Tue, 3 Apr 2012 10:08:48 +0200 Subject: netfilter: xt_CT: remove a compile warning MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit If CONFIG_NF_CONNTRACK_TIMEOUT=n we have following warning : CC [M] net/netfilter/xt_CT.o net/netfilter/xt_CT.c: In function ‘xt_ct_tg_check_v1’: net/netfilter/xt_CT.c:284: warning: label ‘err4’ defined but not used Reported-by: Eric Dumazet Signed-off-by: Pablo Neira Ayuso diff --git a/net/netfilter/xt_CT.c b/net/netfilter/xt_CT.c index 0c8e438..138b75e 100644 --- a/net/netfilter/xt_CT.c +++ b/net/netfilter/xt_CT.c @@ -281,8 +281,10 @@ out: info->ct = ct; return 0; +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT err4: rcu_read_unlock(); +#endif err3: nf_conntrack_free(ct); err2: -- cgit v0.10.2 From e02f14cd48a5da0ebaecf88c93dbd54a81e0dead Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Mon, 2 Apr 2012 23:33:03 +0200 Subject: drm/i915: don't leak struct_mutex lock on ppgtt init failures Reported-by: Konstantin Belousov Reviewed-by: Chris Wilson Signed-Off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 8a62285..785f67f 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1222,8 +1222,10 @@ static int i915_load_gem_init(struct drm_device *dev) i915_gem_do_init(dev, 0, mappable_size, gtt_size); ret = i915_gem_init_aliasing_ppgtt(dev); - if (ret) + if (ret) { + mutex_unlock(&dev->struct_mutex); return ret; + } } else { /* Let GEM Manage all of the aperture. * -- cgit v0.10.2 From 927a2f119e8235238a2fc64871051b16c9bdae75 Mon Sep 17 00:00:00 2001 From: Sean Paul Date: Fri, 23 Mar 2012 08:52:58 -0400 Subject: drm/i915: Add lock on drm_helper_resume_force_mode i915_drm_thaw was not locking the mode_config lock when calling drm_helper_resume_force_mode. When there were multiple wake sources, this caused FDI training failure on SNB which in turn corrupted the display. Signed-off-by: Sean Paul Reviewed-by: Chris Wilson Cc: stable@kernel.org Signed-Off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 19d55bc..dfa55e7 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -538,7 +538,9 @@ static int i915_drm_thaw(struct drm_device *dev) drm_irq_install(dev); /* Resume the modeset for every activated CRTC */ + mutex_lock(&dev->mode_config.mutex); drm_helper_resume_force_mode(dev); + mutex_unlock(&dev->mode_config.mutex); if (IS_IRONLAKE_M(dev)) ironlake_enable_rc6(dev); -- cgit v0.10.2 From 97effadb65ed08809e1720c8d3ee80b73a93665c Mon Sep 17 00:00:00 2001 From: Anisse Astier Date: Wed, 7 Mar 2012 18:36:35 +0100 Subject: drm/i915: no-lvds quirk on MSI DC500 This hardware doesn't have an LVDS, it's a desktop box. Fix incorrect LVDS detection. Cc: stable@kernel.org Signed-off-by: Anisse Astier Acked-by: Chris Wilson Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index c5c0973..95db2e9 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -755,6 +755,14 @@ static const struct dmi_system_id intel_no_lvds[] = { DMI_MATCH(DMI_BOARD_NAME, "hp st5747"), }, }, + { + .callback = intel_no_lvds_dmi_callback, + .ident = "MSI Wind Box DC500", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"), + DMI_MATCH(DMI_BOARD_NAME, "MS-7469"), + }, + }, { } /* terminating entry */ }; -- cgit v0.10.2 From b4db1e35ac59c144965f517bc575a0d75b60b03f Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Tue, 20 Mar 2012 10:59:09 -0700 Subject: drm/i915: treat src w & h as fixed point in sprite handling code This was missed when we converted the source values to 16.16 fixed point. Cc: stable@vger.kernel.org Signed-off-by: Jesse Barnes Tested-by: Chris Wilson Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c index 7aa0450..a464771 100644 --- a/drivers/gpu/drm/i915/intel_sprite.c +++ b/drivers/gpu/drm/i915/intel_sprite.c @@ -411,6 +411,9 @@ intel_update_plane(struct drm_plane *plane, struct drm_crtc *crtc, old_obj = intel_plane->obj; + src_w = src_w >> 16; + src_h = src_h >> 16; + /* Pipe must be running... */ if (!(I915_READ(PIPECONF(pipe)) & PIPECONF_ENABLE)) return -EINVAL; -- cgit v0.10.2 From 62fb376e214d3c1bfdf6fbb77dac162f6da04d7e Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Mon, 26 Mar 2012 21:15:53 +0100 Subject: drm: Validate requested virtual size against allocated fb size mplayer -vo fbdev tries to create a screen that is twice as tall as the allocated framebuffer for "doublebuffering". By default, and all in-tree users, only sufficient memory is allocated and mapped to satisfy the smallest framebuffer and the virtual size is no larger than the actual. For these users, we should therefore reject any userspace request to create a screen that requires a buffer larger than the framebuffer originally allocated. References: https://bugs.freedesktop.org/show_bug.cgi?id=38138 Signed-off-by: Chris Wilson Reviewed-by: Daniel Vetter Cc: stable@kernel.org Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 7740dd2..a0d6e89 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -559,9 +559,13 @@ int drm_fb_helper_check_var(struct fb_var_screeninfo *var, return -EINVAL; /* Need to resize the fb object !!! */ - if (var->bits_per_pixel > fb->bits_per_pixel || var->xres > fb->width || var->yres > fb->height) { + if (var->bits_per_pixel > fb->bits_per_pixel || + var->xres > fb->width || var->yres > fb->height || + var->xres_virtual > fb->width || var->yres_virtual > fb->height) { DRM_DEBUG("fb userspace requested width/height/bpp is greater than current fb " - "object %dx%d-%d > %dx%d-%d\n", var->xres, var->yres, var->bits_per_pixel, + "request %dx%d-%d (virtual %dx%d) > %dx%d-%d\n", + var->xres, var->yres, var->bits_per_pixel, + var->xres_virtual, var->yres_virtual, fb->width, fb->height, fb->bits_per_pixel); return -EINVAL; } -- cgit v0.10.2 From 6c284903731eae12ae62aa138f479d48ccbcf1d1 Mon Sep 17 00:00:00 2001 From: Jarkko Nikula Date: Tue, 3 Apr 2012 09:45:43 +0300 Subject: MAINTAINERS: Add missing ASoC OMAP co-maintainer Peter Ujfalusi has been co-maintaining sound/soc/omap/ for years but was missing from this MAINTAINERS entry. Signed-off-by: Jarkko Nikula Acked-by: Liam Girdwood Signed-off-by: Mark Brown diff --git a/MAINTAINERS b/MAINTAINERS index eecf344..85c599b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4807,6 +4807,7 @@ F: arch/arm/mach-omap2/clockdomain2xxx_3xxx.c F: arch/arm/mach-omap2/clockdomain44xx.c OMAP AUDIO SUPPORT +M: Peter Ujfalusi M: Jarkko Nikula L: alsa-devel@alsa-project.org (subscribers-only) L: linux-omap@vger.kernel.org -- cgit v0.10.2 From e466de05194b666114713b753e2f4be1d4200140 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 3 Apr 2012 13:08:53 +0100 Subject: regmap: Export regcache_sync_region() regcache_sync_region() isn't going to be useful to most drivers if we don't export it since otherwise they can't use it when built modular. Signed-off-by: Mark Brown diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c index 87f54db..74b6909 100644 --- a/drivers/base/regmap/regcache.c +++ b/drivers/base/regmap/regcache.c @@ -346,6 +346,7 @@ out: return ret; } +EXPORT_SYMBOL_GPL(regcache_sync_region); /** * regcache_cache_only: Put a register map into cache only mode -- cgit v0.10.2 From dcf9af822803bcc2cd9e8009648547e6060b59a0 Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Tue, 3 Apr 2012 21:27:58 +0900 Subject: drm/exynos: fixed page align and code clean. 1M section, 64k page count also should be rounded up so this patch rounds up them and caculates page count of them properly and also checks memory flags from user. Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park diff --git a/drivers/gpu/drm/exynos/exynos_drm_buf.c b/drivers/gpu/drm/exynos/exynos_drm_buf.c index 4a3a5f7..52d42cd 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_buf.c +++ b/drivers/gpu/drm/exynos/exynos_drm_buf.c @@ -41,7 +41,7 @@ static int lowlevel_buffer_allocate(struct drm_device *dev, DRM_DEBUG_KMS("%s\n", __FILE__); - if (flags & EXYNOS_BO_NONCONTIG) { + if (IS_NONCONTIG_BUFFER(flags)) { DRM_DEBUG_KMS("not support allocation type.\n"); return -EINVAL; } @@ -52,13 +52,13 @@ static int lowlevel_buffer_allocate(struct drm_device *dev, } if (buf->size >= SZ_1M) { - npages = (buf->size >> SECTION_SHIFT) + 1; + npages = buf->size >> SECTION_SHIFT; page_size = SECTION_SIZE; } else if (buf->size >= SZ_64K) { - npages = (buf->size >> 16) + 1; + npages = buf->size >> 16; page_size = SZ_64K; } else { - npages = (buf->size >> PAGE_SHIFT) + 1; + npages = buf->size >> PAGE_SHIFT; page_size = PAGE_SIZE; } @@ -119,9 +119,6 @@ static int lowlevel_buffer_allocate(struct drm_device *dev, buf->pages[i] = phys_to_page(start_addr); - sgl = sg_next(sgl); - sg_set_page(sgl, buf->pages[i+1], end_addr - start_addr, 0); - DRM_DEBUG_KMS("vaddr(0x%lx), dma_addr(0x%lx), size(0x%lx)\n", (unsigned long)buf->kvaddr, (unsigned long)buf->dma_addr, @@ -150,7 +147,7 @@ static void lowlevel_buffer_deallocate(struct drm_device *dev, * non-continuous memory would be released by exynos * gem framework. */ - if (flags & EXYNOS_BO_NONCONTIG) { + if (IS_NONCONTIG_BUFFER(flags)) { DRM_DEBUG_KMS("not support allocation type.\n"); return; } diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c index fa1aa94..26d5197 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c @@ -56,9 +56,28 @@ static unsigned int convert_to_vm_err_msg(int msg) return out_msg; } -static unsigned int mask_gem_flags(unsigned int flags) +static int check_gem_flags(unsigned int flags) { - return flags &= EXYNOS_BO_NONCONTIG; + if (flags & ~(EXYNOS_BO_MASK)) { + DRM_ERROR("invalid flags.\n"); + return -EINVAL; + } + + return 0; +} + +static unsigned long roundup_gem_size(unsigned long size, unsigned int flags) +{ + if (!IS_NONCONTIG_BUFFER(flags)) { + if (size >= SZ_1M) + return roundup(size, SECTION_SIZE); + else if (size >= SZ_64K) + return roundup(size, SZ_64K); + else + goto out; + } +out: + return roundup(size, PAGE_SIZE); } static struct page **exynos_gem_get_pages(struct drm_gem_object *obj, @@ -319,10 +338,17 @@ struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_device *dev, struct exynos_drm_gem_buf *buf; int ret; - size = roundup(size, PAGE_SIZE); - DRM_DEBUG_KMS("%s: size = 0x%lx\n", __FILE__, size); + if (!size) { + DRM_ERROR("invalid size.\n"); + return ERR_PTR(-EINVAL); + } - flags = mask_gem_flags(flags); + size = roundup_gem_size(size, flags); + DRM_DEBUG_KMS("%s\n", __FILE__); + + ret = check_gem_flags(flags); + if (ret) + return ERR_PTR(ret); buf = exynos_drm_init_buf(dev, size); if (!buf) @@ -331,7 +357,7 @@ struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_device *dev, exynos_gem_obj = exynos_drm_gem_init(dev, size); if (!exynos_gem_obj) { ret = -ENOMEM; - goto err; + goto err_fini_buf; } exynos_gem_obj->buffer = buf; @@ -347,18 +373,19 @@ struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_device *dev, ret = exynos_drm_gem_get_pages(&exynos_gem_obj->base); if (ret < 0) { drm_gem_object_release(&exynos_gem_obj->base); - goto err; + goto err_fini_buf; } } else { ret = exynos_drm_alloc_buf(dev, buf, flags); if (ret < 0) { drm_gem_object_release(&exynos_gem_obj->base); - goto err; + goto err_fini_buf; } } return exynos_gem_obj; -err: + +err_fini_buf: exynos_drm_fini_buf(dev, buf); return ERR_PTR(ret); } diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.h b/drivers/gpu/drm/exynos/exynos_drm_gem.h index e40fbad..4ed8420 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.h +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.h @@ -29,6 +29,8 @@ #define to_exynos_gem_obj(x) container_of(x,\ struct exynos_drm_gem_obj, base) +#define IS_NONCONTIG_BUFFER(f) (f & EXYNOS_BO_NONCONTIG) + /* * exynos drm gem buffer structure. * diff --git a/include/drm/exynos_drm.h b/include/drm/exynos_drm.h index 3963116..1bb2d47 100644 --- a/include/drm/exynos_drm.h +++ b/include/drm/exynos_drm.h @@ -96,7 +96,8 @@ struct drm_exynos_plane_set_zpos { /* memory type definitions. */ enum e_drm_exynos_gem_mem_type { /* Physically Non-Continuous memory. */ - EXYNOS_BO_NONCONTIG = 1 << 0 + EXYNOS_BO_NONCONTIG = 1 << 0, + EXYNOS_BO_MASK = EXYNOS_BO_NONCONTIG }; #define DRM_EXYNOS_GEM_CREATE 0x00 -- cgit v0.10.2 From 61db75d83ca2ac7d46b72fe94b253bbe277bb178 Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Tue, 3 Apr 2012 21:49:15 +0900 Subject: drm/exynos: fixed duplicated page allocation bug. this patch fixes that buf->pages is allocated two times when it allocates physically continuous memory region and removes unnecessary codes. Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park diff --git a/drivers/gpu/drm/exynos/exynos_drm_buf.c b/drivers/gpu/drm/exynos/exynos_drm_buf.c index 52d42cd..de8d209 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_buf.c +++ b/drivers/gpu/drm/exynos/exynos_drm_buf.c @@ -34,7 +34,7 @@ static int lowlevel_buffer_allocate(struct drm_device *dev, unsigned int flags, struct exynos_drm_gem_buf *buf) { - dma_addr_t start_addr, end_addr; + dma_addr_t start_addr; unsigned int npages, page_size, i = 0; struct scatterlist *sgl; int ret = 0; @@ -76,26 +76,13 @@ static int lowlevel_buffer_allocate(struct drm_device *dev, return -ENOMEM; } - buf->kvaddr = dma_alloc_writecombine(dev->dev, buf->size, - &buf->dma_addr, GFP_KERNEL); - if (!buf->kvaddr) { - DRM_ERROR("failed to allocate buffer.\n"); - ret = -ENOMEM; - goto err1; - } - - start_addr = buf->dma_addr; - end_addr = buf->dma_addr + buf->size; - - buf->pages = kzalloc(sizeof(struct page) * npages, GFP_KERNEL); - if (!buf->pages) { - DRM_ERROR("failed to allocate pages.\n"); - ret = -ENOMEM; - goto err2; - } - - start_addr = buf->dma_addr; - end_addr = buf->dma_addr + buf->size; + buf->kvaddr = dma_alloc_writecombine(dev->dev, buf->size, + &buf->dma_addr, GFP_KERNEL); + if (!buf->kvaddr) { + DRM_ERROR("failed to allocate buffer.\n"); + ret = -ENOMEM; + goto err1; + } buf->pages = kzalloc(sizeof(struct page) * npages, GFP_KERNEL); if (!buf->pages) { @@ -105,20 +92,17 @@ static int lowlevel_buffer_allocate(struct drm_device *dev, } sgl = buf->sgt->sgl; + start_addr = buf->dma_addr; while (i < npages) { buf->pages[i] = phys_to_page(start_addr); sg_set_page(sgl, buf->pages[i], page_size, 0); sg_dma_address(sgl) = start_addr; start_addr += page_size; - if (end_addr - start_addr < page_size) - break; sgl = sg_next(sgl); i++; } - buf->pages[i] = phys_to_page(start_addr); - DRM_DEBUG_KMS("vaddr(0x%lx), dma_addr(0x%lx), size(0x%lx)\n", (unsigned long)buf->kvaddr, (unsigned long)buf->dma_addr, -- cgit v0.10.2 From 3b3b0e4fc15efa507b902d90cea39e496a523c3b Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Tue, 3 Apr 2012 09:37:02 -0700 Subject: LSM: shrink sizeof LSM specific portion of common_audit_data Linus found that the gigantic size of the common audit data caused a big perf hit on something as simple as running stat() in a loop. This patch requires LSMs to declare the LSM specific portion separately rather than doing it in a union. Thus each LSM can be responsible for shrinking their portion and don't have to pay a penalty just because other LSMs have a bigger space requirement. Signed-off-by: Eric Paris Signed-off-by: Linus Torvalds diff --git a/include/linux/lsm_audit.h b/include/linux/lsm_audit.h index eab507f..6f4fb37 100644 --- a/include/linux/lsm_audit.h +++ b/include/linux/lsm_audit.h @@ -72,61 +72,15 @@ struct common_audit_data { /* this union contains LSM specific data */ union { #ifdef CONFIG_SECURITY_SMACK - /* SMACK data */ - struct smack_audit_data { - const char *function; - char *subject; - char *object; - char *request; - int result; - } smack_audit_data; + struct smack_audit_data *smack_audit_data; #endif #ifdef CONFIG_SECURITY_SELINUX - /* SELinux data */ - struct { - u32 ssid; - u32 tsid; - u16 tclass; - u32 requested; - u32 audited; - u32 denied; - /* - * auditdeny is a bit tricky and unintuitive. See the - * comments in avc.c for it's meaning and usage. - */ - u32 auditdeny; - struct av_decision *avd; - int result; - } selinux_audit_data; + struct selinux_audit_data *selinux_audit_data; #endif #ifdef CONFIG_SECURITY_APPARMOR - struct { - int error; - int op; - int type; - void *profile; - const char *name; - const char *info; - union { - void *target; - struct { - long pos; - void *target; - } iface; - struct { - int rlim; - unsigned long max; - } rlim; - struct { - const char *target; - u32 request; - u32 denied; - uid_t ouid; - } fs; - }; - } apparmor_audit_data; + struct apparmor_audit_data *apparmor_audit_data; #endif - }; + }; /* per LSM data pointer union */ /* these callback will be implemented by a specific LSM */ void (*lsm_pre_audit)(struct audit_buffer *, void *); void (*lsm_post_audit)(struct audit_buffer *, void *); diff --git a/security/apparmor/audit.c b/security/apparmor/audit.c index 5ff6777..23f7eb6 100644 --- a/security/apparmor/audit.c +++ b/security/apparmor/audit.c @@ -115,23 +115,23 @@ static void audit_pre(struct audit_buffer *ab, void *ca) if (aa_g_audit_header) { audit_log_format(ab, "apparmor="); - audit_log_string(ab, aa_audit_type[sa->aad.type]); + audit_log_string(ab, aa_audit_type[sa->aad->type]); } - if (sa->aad.op) { + if (sa->aad->op) { audit_log_format(ab, " operation="); - audit_log_string(ab, op_table[sa->aad.op]); + audit_log_string(ab, op_table[sa->aad->op]); } - if (sa->aad.info) { + if (sa->aad->info) { audit_log_format(ab, " info="); - audit_log_string(ab, sa->aad.info); - if (sa->aad.error) - audit_log_format(ab, " error=%d", sa->aad.error); + audit_log_string(ab, sa->aad->info); + if (sa->aad->error) + audit_log_format(ab, " error=%d", sa->aad->error); } - if (sa->aad.profile) { - struct aa_profile *profile = sa->aad.profile; + if (sa->aad->profile) { + struct aa_profile *profile = sa->aad->profile; pid_t pid; rcu_read_lock(); pid = rcu_dereference(tsk->real_parent)->pid; @@ -145,9 +145,9 @@ static void audit_pre(struct audit_buffer *ab, void *ca) audit_log_untrustedstring(ab, profile->base.hname); } - if (sa->aad.name) { + if (sa->aad->name) { audit_log_format(ab, " name="); - audit_log_untrustedstring(ab, sa->aad.name); + audit_log_untrustedstring(ab, sa->aad->name); } } @@ -159,7 +159,7 @@ static void audit_pre(struct audit_buffer *ab, void *ca) void aa_audit_msg(int type, struct common_audit_data *sa, void (*cb) (struct audit_buffer *, void *)) { - sa->aad.type = type; + sa->aad->type = type; sa->lsm_pre_audit = audit_pre; sa->lsm_post_audit = cb; common_lsm_audit(sa); @@ -184,7 +184,7 @@ int aa_audit(int type, struct aa_profile *profile, gfp_t gfp, BUG_ON(!profile); if (type == AUDIT_APPARMOR_AUTO) { - if (likely(!sa->aad.error)) { + if (likely(!sa->aad->error)) { if (AUDIT_MODE(profile) != AUDIT_ALL) return 0; type = AUDIT_APPARMOR_AUDIT; @@ -196,21 +196,21 @@ int aa_audit(int type, struct aa_profile *profile, gfp_t gfp, if (AUDIT_MODE(profile) == AUDIT_QUIET || (type == AUDIT_APPARMOR_DENIED && AUDIT_MODE(profile) == AUDIT_QUIET)) - return sa->aad.error; + return sa->aad->error; if (KILL_MODE(profile) && type == AUDIT_APPARMOR_DENIED) type = AUDIT_APPARMOR_KILL; if (!unconfined(profile)) - sa->aad.profile = profile; + sa->aad->profile = profile; aa_audit_msg(type, sa, cb); - if (sa->aad.type == AUDIT_APPARMOR_KILL) + if (sa->aad->type == AUDIT_APPARMOR_KILL) (void)send_sig_info(SIGKILL, NULL, sa->tsk ? sa->tsk : current); - if (sa->aad.type == AUDIT_APPARMOR_ALLOWED) - return complain_error(sa->aad.error); + if (sa->aad->type == AUDIT_APPARMOR_ALLOWED) + return complain_error(sa->aad->error); - return sa->aad.error; + return sa->aad->error; } diff --git a/security/apparmor/capability.c b/security/apparmor/capability.c index 9982c48..088dba3 100644 --- a/security/apparmor/capability.c +++ b/security/apparmor/capability.c @@ -64,11 +64,13 @@ static int audit_caps(struct aa_profile *profile, struct task_struct *task, struct audit_cache *ent; int type = AUDIT_APPARMOR_AUTO; struct common_audit_data sa; + struct apparmor_audit_data aad = {0,}; COMMON_AUDIT_DATA_INIT(&sa, CAP); + sa.aad = &aad; sa.tsk = task; sa.u.cap = cap; - sa.aad.op = OP_CAPABLE; - sa.aad.error = error; + sa.aad->op = OP_CAPABLE; + sa.aad->error = error; if (likely(!error)) { /* test if auditing is being forced */ diff --git a/security/apparmor/file.c b/security/apparmor/file.c index 5d176f2..2f8fcba 100644 --- a/security/apparmor/file.c +++ b/security/apparmor/file.c @@ -67,22 +67,22 @@ static void file_audit_cb(struct audit_buffer *ab, void *va) struct common_audit_data *sa = va; uid_t fsuid = current_fsuid(); - if (sa->aad.fs.request & AA_AUDIT_FILE_MASK) { + if (sa->aad->fs.request & AA_AUDIT_FILE_MASK) { audit_log_format(ab, " requested_mask="); - audit_file_mask(ab, sa->aad.fs.request); + audit_file_mask(ab, sa->aad->fs.request); } - if (sa->aad.fs.denied & AA_AUDIT_FILE_MASK) { + if (sa->aad->fs.denied & AA_AUDIT_FILE_MASK) { audit_log_format(ab, " denied_mask="); - audit_file_mask(ab, sa->aad.fs.denied); + audit_file_mask(ab, sa->aad->fs.denied); } - if (sa->aad.fs.request & AA_AUDIT_FILE_MASK) { + if (sa->aad->fs.request & AA_AUDIT_FILE_MASK) { audit_log_format(ab, " fsuid=%d", fsuid); - audit_log_format(ab, " ouid=%d", sa->aad.fs.ouid); + audit_log_format(ab, " ouid=%d", sa->aad->fs.ouid); } - if (sa->aad.fs.target) { + if (sa->aad->fs.target) { audit_log_format(ab, " target="); - audit_log_untrustedstring(ab, sa->aad.fs.target); + audit_log_untrustedstring(ab, sa->aad->fs.target); } } @@ -107,45 +107,47 @@ int aa_audit_file(struct aa_profile *profile, struct file_perms *perms, { int type = AUDIT_APPARMOR_AUTO; struct common_audit_data sa; + struct apparmor_audit_data aad = {0,}; COMMON_AUDIT_DATA_INIT(&sa, NONE); - sa.aad.op = op, - sa.aad.fs.request = request; - sa.aad.name = name; - sa.aad.fs.target = target; - sa.aad.fs.ouid = ouid; - sa.aad.info = info; - sa.aad.error = error; - - if (likely(!sa.aad.error)) { + sa.aad = &aad; + aad.op = op, + aad.fs.request = request; + aad.name = name; + aad.fs.target = target; + aad.fs.ouid = ouid; + aad.info = info; + aad.error = error; + + if (likely(!sa.aad->error)) { u32 mask = perms->audit; if (unlikely(AUDIT_MODE(profile) == AUDIT_ALL)) mask = 0xffff; /* mask off perms that are not being force audited */ - sa.aad.fs.request &= mask; + sa.aad->fs.request &= mask; - if (likely(!sa.aad.fs.request)) + if (likely(!sa.aad->fs.request)) return 0; type = AUDIT_APPARMOR_AUDIT; } else { /* only report permissions that were denied */ - sa.aad.fs.request = sa.aad.fs.request & ~perms->allow; + sa.aad->fs.request = sa.aad->fs.request & ~perms->allow; - if (sa.aad.fs.request & perms->kill) + if (sa.aad->fs.request & perms->kill) type = AUDIT_APPARMOR_KILL; /* quiet known rejects, assumes quiet and kill do not overlap */ - if ((sa.aad.fs.request & perms->quiet) && + if ((sa.aad->fs.request & perms->quiet) && AUDIT_MODE(profile) != AUDIT_NOQUIET && AUDIT_MODE(profile) != AUDIT_ALL) - sa.aad.fs.request &= ~perms->quiet; + sa.aad->fs.request &= ~perms->quiet; - if (!sa.aad.fs.request) - return COMPLAIN_MODE(profile) ? 0 : sa.aad.error; + if (!sa.aad->fs.request) + return COMPLAIN_MODE(profile) ? 0 : sa.aad->error; } - sa.aad.fs.denied = sa.aad.fs.request & ~perms->allow; + sa.aad->fs.denied = sa.aad->fs.request & ~perms->allow; return aa_audit(type, profile, gfp, &sa, file_audit_cb); } diff --git a/security/apparmor/include/audit.h b/security/apparmor/include/audit.h index 4ba78c2..3868b1e 100644 --- a/security/apparmor/include/audit.h +++ b/security/apparmor/include/audit.h @@ -103,7 +103,33 @@ enum aa_ops { }; -/* define a short hand for apparmor_audit_data portion of common_audit_data */ +struct apparmor_audit_data { + int error; + int op; + int type; + void *profile; + const char *name; + const char *info; + union { + void *target; + struct { + long pos; + void *target; + } iface; + struct { + int rlim; + unsigned long max; + } rlim; + struct { + const char *target; + u32 request; + u32 denied; + uid_t ouid; + } fs; + }; +}; + +/* define a short hand for apparmor_audit_data structure */ #define aad apparmor_audit_data void aa_audit_msg(int type, struct common_audit_data *sa, diff --git a/security/apparmor/ipc.c b/security/apparmor/ipc.c index 7ee05c6..c3da93a 100644 --- a/security/apparmor/ipc.c +++ b/security/apparmor/ipc.c @@ -26,7 +26,7 @@ static void audit_cb(struct audit_buffer *ab, void *va) { struct common_audit_data *sa = va; audit_log_format(ab, " target="); - audit_log_untrustedstring(ab, sa->aad.target); + audit_log_untrustedstring(ab, sa->aad->target); } /** @@ -41,10 +41,12 @@ static int aa_audit_ptrace(struct aa_profile *profile, struct aa_profile *target, int error) { struct common_audit_data sa; + struct apparmor_audit_data aad = {0,}; COMMON_AUDIT_DATA_INIT(&sa, NONE); - sa.aad.op = OP_PTRACE; - sa.aad.target = target; - sa.aad.error = error; + sa.aad = &aad; + aad.op = OP_PTRACE; + aad.target = target; + aad.error = error; return aa_audit(AUDIT_APPARMOR_AUTO, profile, GFP_ATOMIC, &sa, audit_cb); diff --git a/security/apparmor/lib.c b/security/apparmor/lib.c index 9516948..e75829b 100644 --- a/security/apparmor/lib.c +++ b/security/apparmor/lib.c @@ -65,8 +65,10 @@ void aa_info_message(const char *str) { if (audit_enabled) { struct common_audit_data sa; + struct apparmor_audit_data aad = {0,}; COMMON_AUDIT_DATA_INIT(&sa, NONE); - sa.aad.info = str; + sa.aad = &aad; + aad.info = str; aa_audit_msg(AUDIT_APPARMOR_STATUS, &sa, NULL); } printk(KERN_INFO "AppArmor: %s\n", str); diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c index 97ce8fa..ad05d39 100644 --- a/security/apparmor/lsm.c +++ b/security/apparmor/lsm.c @@ -588,10 +588,12 @@ static int apparmor_setprocattr(struct task_struct *task, char *name, error = aa_setprocattr_permipc(args); } else { struct common_audit_data sa; + struct apparmor_audit_data aad = {0,}; COMMON_AUDIT_DATA_INIT(&sa, NONE); - sa.aad.op = OP_SETPROCATTR; - sa.aad.info = name; - sa.aad.error = -EINVAL; + sa.aad = &aad; + aad.op = OP_SETPROCATTR; + aad.info = name; + aad.error = -EINVAL; return aa_audit(AUDIT_APPARMOR_DENIED, __aa_current_profile(), GFP_KERNEL, &sa, NULL); diff --git a/security/apparmor/policy.c b/security/apparmor/policy.c index 9064143..f1f7506 100644 --- a/security/apparmor/policy.c +++ b/security/apparmor/policy.c @@ -964,11 +964,13 @@ static int audit_policy(int op, gfp_t gfp, const char *name, const char *info, int error) { struct common_audit_data sa; + struct apparmor_audit_data aad = {0,}; COMMON_AUDIT_DATA_INIT(&sa, NONE); - sa.aad.op = op; - sa.aad.name = name; - sa.aad.info = info; - sa.aad.error = error; + sa.aad = &aad; + aad.op = op; + aad.name = name; + aad.info = info; + aad.error = error; return aa_audit(AUDIT_APPARMOR_STATUS, __aa_current_profile(), gfp, &sa, NULL); diff --git a/security/apparmor/policy_unpack.c b/security/apparmor/policy_unpack.c index 25fd51e..deab7c7 100644 --- a/security/apparmor/policy_unpack.c +++ b/security/apparmor/policy_unpack.c @@ -70,13 +70,13 @@ struct aa_ext { static void audit_cb(struct audit_buffer *ab, void *va) { struct common_audit_data *sa = va; - if (sa->aad.iface.target) { - struct aa_profile *name = sa->aad.iface.target; + if (sa->aad->iface.target) { + struct aa_profile *name = sa->aad->iface.target; audit_log_format(ab, " name="); audit_log_untrustedstring(ab, name->base.hname); } - if (sa->aad.iface.pos) - audit_log_format(ab, " offset=%ld", sa->aad.iface.pos); + if (sa->aad->iface.pos) + audit_log_format(ab, " offset=%ld", sa->aad->iface.pos); } /** @@ -94,13 +94,15 @@ static int audit_iface(struct aa_profile *new, const char *name, { struct aa_profile *profile = __aa_current_profile(); struct common_audit_data sa; + struct apparmor_audit_data aad = {0,}; COMMON_AUDIT_DATA_INIT(&sa, NONE); + sa.aad = &aad; if (e) - sa.aad.iface.pos = e->pos - e->start; - sa.aad.iface.target = new; - sa.aad.name = name; - sa.aad.info = info; - sa.aad.error = error; + aad.iface.pos = e->pos - e->start; + aad.iface.target = new; + aad.name = name; + aad.info = info; + aad.error = error; return aa_audit(AUDIT_APPARMOR_STATUS, profile, GFP_KERNEL, &sa, audit_cb); diff --git a/security/apparmor/resource.c b/security/apparmor/resource.c index 72c25a4f..2fe8613 100644 --- a/security/apparmor/resource.c +++ b/security/apparmor/resource.c @@ -34,7 +34,7 @@ static void audit_cb(struct audit_buffer *ab, void *va) struct common_audit_data *sa = va; audit_log_format(ab, " rlimit=%s value=%lu", - rlim_names[sa->aad.rlim.rlim], sa->aad.rlim.max); + rlim_names[sa->aad->rlim.rlim], sa->aad->rlim.max); } /** @@ -50,12 +50,14 @@ static int audit_resource(struct aa_profile *profile, unsigned int resource, unsigned long value, int error) { struct common_audit_data sa; + struct apparmor_audit_data aad = {0,}; COMMON_AUDIT_DATA_INIT(&sa, NONE); - sa.aad.op = OP_SETRLIMIT, - sa.aad.rlim.rlim = resource; - sa.aad.rlim.max = value; - sa.aad.error = error; + sa.aad = &aad; + aad.op = OP_SETRLIMIT, + aad.rlim.rlim = resource; + aad.rlim.max = value; + aad.error = error; return aa_audit(AUDIT_APPARMOR_AUTO, profile, GFP_KERNEL, &sa, audit_cb); } diff --git a/security/selinux/avc.c b/security/selinux/avc.c index 1a70fa2..00f3860 100644 --- a/security/selinux/avc.c +++ b/security/selinux/avc.c @@ -436,9 +436,9 @@ static void avc_audit_pre_callback(struct audit_buffer *ab, void *a) { struct common_audit_data *ad = a; audit_log_format(ab, "avc: %s ", - ad->selinux_audit_data.denied ? "denied" : "granted"); - avc_dump_av(ab, ad->selinux_audit_data.tclass, - ad->selinux_audit_data.audited); + ad->selinux_audit_data->denied ? "denied" : "granted"); + avc_dump_av(ab, ad->selinux_audit_data->tclass, + ad->selinux_audit_data->audited); audit_log_format(ab, " for "); } @@ -452,9 +452,9 @@ static void avc_audit_post_callback(struct audit_buffer *ab, void *a) { struct common_audit_data *ad = a; audit_log_format(ab, " "); - avc_dump_query(ab, ad->selinux_audit_data.ssid, - ad->selinux_audit_data.tsid, - ad->selinux_audit_data.tclass); + avc_dump_query(ab, ad->selinux_audit_data->ssid, + ad->selinux_audit_data->tsid, + ad->selinux_audit_data->tclass); } /* This is the slow part of avc audit with big stack footprint */ @@ -464,10 +464,12 @@ static noinline int slow_avc_audit(u32 ssid, u32 tsid, u16 tclass, unsigned flags) { struct common_audit_data stack_data; + struct selinux_audit_data sad = {0,}; if (!a) { a = &stack_data; COMMON_AUDIT_DATA_INIT(a, NONE); + a->selinux_audit_data = &sad; } /* @@ -481,12 +483,12 @@ static noinline int slow_avc_audit(u32 ssid, u32 tsid, u16 tclass, (flags & MAY_NOT_BLOCK)) return -ECHILD; - a->selinux_audit_data.tclass = tclass; - a->selinux_audit_data.requested = requested; - a->selinux_audit_data.ssid = ssid; - a->selinux_audit_data.tsid = tsid; - a->selinux_audit_data.audited = audited; - a->selinux_audit_data.denied = denied; + a->selinux_audit_data->tclass = tclass; + a->selinux_audit_data->requested = requested; + a->selinux_audit_data->ssid = ssid; + a->selinux_audit_data->tsid = tsid; + a->selinux_audit_data->audited = audited; + a->selinux_audit_data->denied = denied; a->lsm_pre_audit = avc_audit_pre_callback; a->lsm_post_audit = avc_audit_post_callback; common_lsm_audit(a); @@ -523,7 +525,7 @@ inline int avc_audit(u32 ssid, u32 tsid, if (unlikely(denied)) { audited = denied & avd->auditdeny; /* - * a->selinux_audit_data.auditdeny is TRICKY! Setting a bit in + * a->selinux_audit_data->auditdeny is TRICKY! Setting a bit in * this field means that ANY denials should NOT be audited if * the policy contains an explicit dontaudit rule for that * permission. Take notice that this is unrelated to the @@ -532,15 +534,15 @@ inline int avc_audit(u32 ssid, u32 tsid, * * denied == READ * avd.auditdeny & ACCESS == 0 (not set means explicit rule) - * selinux_audit_data.auditdeny & ACCESS == 1 + * selinux_audit_data->auditdeny & ACCESS == 1 * * We will NOT audit the denial even though the denied * permission was READ and the auditdeny checks were for * ACCESS */ if (a && - a->selinux_audit_data.auditdeny && - !(a->selinux_audit_data.auditdeny & avd->auditdeny)) + a->selinux_audit_data->auditdeny && + !(a->selinux_audit_data->auditdeny & avd->auditdeny)) audited = 0; } else if (result) audited = denied = requested; diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 28482f9..3861ce4 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -1420,6 +1420,7 @@ static int cred_has_capability(const struct cred *cred, int cap, int audit) { struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; struct av_decision avd; u16 sclass; u32 sid = cred_sid(cred); @@ -1427,6 +1428,7 @@ static int cred_has_capability(const struct cred *cred, int rc; COMMON_AUDIT_DATA_INIT(&ad, CAP); + ad.selinux_audit_data = &sad; ad.tsk = current; ad.u.cap = cap; @@ -1492,9 +1494,11 @@ static int inode_has_perm_noadp(const struct cred *cred, unsigned flags) { struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; COMMON_AUDIT_DATA_INIT(&ad, INODE); ad.u.inode = inode; + ad.selinux_audit_data = &sad; return inode_has_perm(cred, inode, perms, &ad, flags); } @@ -1507,9 +1511,11 @@ static inline int dentry_has_perm(const struct cred *cred, { struct inode *inode = dentry->d_inode; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; COMMON_AUDIT_DATA_INIT(&ad, DENTRY); ad.u.dentry = dentry; + ad.selinux_audit_data = &sad; return inode_has_perm(cred, inode, av, &ad, 0); } @@ -1522,9 +1528,11 @@ static inline int path_has_perm(const struct cred *cred, { struct inode *inode = path->dentry->d_inode; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; COMMON_AUDIT_DATA_INIT(&ad, PATH); ad.u.path = *path; + ad.selinux_audit_data = &sad; return inode_has_perm(cred, inode, av, &ad, 0); } @@ -1543,11 +1551,13 @@ static int file_has_perm(const struct cred *cred, struct file_security_struct *fsec = file->f_security; struct inode *inode = file->f_path.dentry->d_inode; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; u32 sid = cred_sid(cred); int rc; COMMON_AUDIT_DATA_INIT(&ad, PATH); ad.u.path = file->f_path; + ad.selinux_audit_data = &sad; if (sid != fsec->sid) { rc = avc_has_perm(sid, fsec->sid, @@ -1577,6 +1587,7 @@ static int may_create(struct inode *dir, struct superblock_security_struct *sbsec; u32 sid, newsid; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; int rc; dsec = dir->i_security; @@ -1587,6 +1598,7 @@ static int may_create(struct inode *dir, COMMON_AUDIT_DATA_INIT(&ad, DENTRY); ad.u.dentry = dentry; + ad.selinux_audit_data = &sad; rc = avc_has_perm(sid, dsec->sid, SECCLASS_DIR, DIR__ADD_NAME | DIR__SEARCH, @@ -1631,6 +1643,7 @@ static int may_link(struct inode *dir, { struct inode_security_struct *dsec, *isec; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; u32 sid = current_sid(); u32 av; int rc; @@ -1640,6 +1653,7 @@ static int may_link(struct inode *dir, COMMON_AUDIT_DATA_INIT(&ad, DENTRY); ad.u.dentry = dentry; + ad.selinux_audit_data = &sad; av = DIR__SEARCH; av |= (kind ? DIR__REMOVE_NAME : DIR__ADD_NAME); @@ -1674,6 +1688,7 @@ static inline int may_rename(struct inode *old_dir, { struct inode_security_struct *old_dsec, *new_dsec, *old_isec, *new_isec; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; u32 sid = current_sid(); u32 av; int old_is_dir, new_is_dir; @@ -1685,6 +1700,7 @@ static inline int may_rename(struct inode *old_dir, new_dsec = new_dir->i_security; COMMON_AUDIT_DATA_INIT(&ad, DENTRY); + ad.selinux_audit_data = &sad; ad.u.dentry = old_dentry; rc = avc_has_perm(sid, old_dsec->sid, SECCLASS_DIR, @@ -1970,6 +1986,7 @@ static int selinux_bprm_set_creds(struct linux_binprm *bprm) struct task_security_struct *new_tsec; struct inode_security_struct *isec; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; struct inode *inode = bprm->file->f_path.dentry->d_inode; int rc; @@ -2009,6 +2026,7 @@ static int selinux_bprm_set_creds(struct linux_binprm *bprm) } COMMON_AUDIT_DATA_INIT(&ad, PATH); + ad.selinux_audit_data = &sad; ad.u.path = bprm->file->f_path; if (bprm->file->f_path.mnt->mnt_flags & MNT_NOSUID) @@ -2098,6 +2116,7 @@ static inline void flush_unauthorized_files(const struct cred *cred, struct files_struct *files) { struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; struct file *file, *devnull = NULL; struct tty_struct *tty; struct fdtable *fdt; @@ -2135,6 +2154,7 @@ static inline void flush_unauthorized_files(const struct cred *cred, /* Revalidate access to inherited open files. */ COMMON_AUDIT_DATA_INIT(&ad, INODE); + ad.selinux_audit_data = &sad; spin_lock(&files->file_lock); for (;;) { @@ -2472,6 +2492,7 @@ static int selinux_sb_kern_mount(struct super_block *sb, int flags, void *data) { const struct cred *cred = current_cred(); struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; int rc; rc = superblock_doinit(sb, data); @@ -2483,6 +2504,7 @@ static int selinux_sb_kern_mount(struct super_block *sb, int flags, void *data) return 0; COMMON_AUDIT_DATA_INIT(&ad, DENTRY); + ad.selinux_audit_data = &sad; ad.u.dentry = sb->s_root; return superblock_has_perm(cred, sb, FILESYSTEM__MOUNT, &ad); } @@ -2491,8 +2513,10 @@ static int selinux_sb_statfs(struct dentry *dentry) { const struct cred *cred = current_cred(); struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; COMMON_AUDIT_DATA_INIT(&ad, DENTRY); + ad.selinux_audit_data = &sad; ad.u.dentry = dentry->d_sb->s_root; return superblock_has_perm(cred, dentry->d_sb, FILESYSTEM__GETATTR, &ad); } @@ -2656,6 +2680,7 @@ static int selinux_inode_permission(struct inode *inode, int mask) { const struct cred *cred = current_cred(); struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; u32 perms; bool from_access; unsigned flags = mask & MAY_NOT_BLOCK; @@ -2668,10 +2693,11 @@ static int selinux_inode_permission(struct inode *inode, int mask) return 0; COMMON_AUDIT_DATA_INIT(&ad, INODE); + ad.selinux_audit_data = &sad; ad.u.inode = inode; if (from_access) - ad.selinux_audit_data.auditdeny |= FILE__AUDIT_ACCESS; + ad.selinux_audit_data->auditdeny |= FILE__AUDIT_ACCESS; perms = file_mask_to_av(inode->i_mode, mask); @@ -2737,6 +2763,7 @@ static int selinux_inode_setxattr(struct dentry *dentry, const char *name, struct inode_security_struct *isec = inode->i_security; struct superblock_security_struct *sbsec; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; u32 newsid, sid = current_sid(); int rc = 0; @@ -2751,6 +2778,7 @@ static int selinux_inode_setxattr(struct dentry *dentry, const char *name, return -EPERM; COMMON_AUDIT_DATA_INIT(&ad, DENTRY); + ad.selinux_audit_data = &sad; ad.u.dentry = dentry; rc = avc_has_perm(sid, isec->sid, isec->sclass, @@ -3345,10 +3373,12 @@ static int selinux_kernel_module_request(char *kmod_name) { u32 sid; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; sid = task_sid(current); COMMON_AUDIT_DATA_INIT(&ad, KMOD); + ad.selinux_audit_data = &sad; ad.u.kmod_name = kmod_name; return avc_has_perm(sid, SECINITSID_KERNEL, SECCLASS_SYSTEM, @@ -3721,12 +3751,14 @@ static int sock_has_perm(struct task_struct *task, struct sock *sk, u32 perms) { struct sk_security_struct *sksec = sk->sk_security; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; u32 tsid = task_sid(task); if (sksec->sid == SECINITSID_KERNEL) return 0; COMMON_AUDIT_DATA_INIT(&ad, NET); + ad.selinux_audit_data = &sad; ad.u.net.sk = sk; return avc_has_perm(tsid, sksec->sid, sksec->sclass, perms, &ad); @@ -3805,6 +3837,7 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in char *addrp; struct sk_security_struct *sksec = sk->sk_security; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; struct sockaddr_in *addr4 = NULL; struct sockaddr_in6 *addr6 = NULL; unsigned short snum; @@ -3831,6 +3864,7 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in if (err) goto out; COMMON_AUDIT_DATA_INIT(&ad, NET); + ad.selinux_audit_data = &sad; ad.u.net.sport = htons(snum); ad.u.net.family = family; err = avc_has_perm(sksec->sid, sid, @@ -3864,6 +3898,7 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in goto out; COMMON_AUDIT_DATA_INIT(&ad, NET); + ad.selinux_audit_data = &sad; ad.u.net.sport = htons(snum); ad.u.net.family = family; @@ -3897,6 +3932,7 @@ static int selinux_socket_connect(struct socket *sock, struct sockaddr *address, if (sksec->sclass == SECCLASS_TCP_SOCKET || sksec->sclass == SECCLASS_DCCP_SOCKET) { struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; struct sockaddr_in *addr4 = NULL; struct sockaddr_in6 *addr6 = NULL; unsigned short snum; @@ -3922,6 +3958,7 @@ static int selinux_socket_connect(struct socket *sock, struct sockaddr *address, TCP_SOCKET__NAME_CONNECT : DCCP_SOCKET__NAME_CONNECT; COMMON_AUDIT_DATA_INIT(&ad, NET); + ad.selinux_audit_data = &sad; ad.u.net.dport = htons(snum); ad.u.net.family = sk->sk_family; err = avc_has_perm(sksec->sid, sid, sksec->sclass, perm, &ad); @@ -4012,9 +4049,11 @@ static int selinux_socket_unix_stream_connect(struct sock *sock, struct sk_security_struct *sksec_other = other->sk_security; struct sk_security_struct *sksec_new = newsk->sk_security; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; int err; COMMON_AUDIT_DATA_INIT(&ad, NET); + ad.selinux_audit_data = &sad; ad.u.net.sk = other; err = avc_has_perm(sksec_sock->sid, sksec_other->sid, @@ -4042,8 +4081,10 @@ static int selinux_socket_unix_may_send(struct socket *sock, struct sk_security_struct *ssec = sock->sk->sk_security; struct sk_security_struct *osec = other->sk->sk_security; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; COMMON_AUDIT_DATA_INIT(&ad, NET); + ad.selinux_audit_data = &sad; ad.u.net.sk = other->sk; return avc_has_perm(ssec->sid, osec->sid, osec->sclass, SOCKET__SENDTO, @@ -4080,9 +4121,11 @@ static int selinux_sock_rcv_skb_compat(struct sock *sk, struct sk_buff *skb, struct sk_security_struct *sksec = sk->sk_security; u32 sk_sid = sksec->sid; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; char *addrp; COMMON_AUDIT_DATA_INIT(&ad, NET); + ad.selinux_audit_data = &sad; ad.u.net.netif = skb->skb_iif; ad.u.net.family = family; err = selinux_parse_skb(skb, &ad, &addrp, 1, NULL); @@ -4111,6 +4154,7 @@ static int selinux_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) u16 family = sk->sk_family; u32 sk_sid = sksec->sid; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; char *addrp; u8 secmark_active; u8 peerlbl_active; @@ -4135,6 +4179,7 @@ static int selinux_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) return 0; COMMON_AUDIT_DATA_INIT(&ad, NET); + ad.selinux_audit_data = &sad; ad.u.net.netif = skb->skb_iif; ad.u.net.family = family; err = selinux_parse_skb(skb, &ad, &addrp, 1, NULL); @@ -4471,6 +4516,7 @@ static unsigned int selinux_ip_forward(struct sk_buff *skb, int ifindex, char *addrp; u32 peer_sid; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; u8 secmark_active; u8 netlbl_active; u8 peerlbl_active; @@ -4488,6 +4534,7 @@ static unsigned int selinux_ip_forward(struct sk_buff *skb, int ifindex, return NF_DROP; COMMON_AUDIT_DATA_INIT(&ad, NET); + ad.selinux_audit_data = &sad; ad.u.net.netif = ifindex; ad.u.net.family = family; if (selinux_parse_skb(skb, &ad, &addrp, 1, NULL) != 0) @@ -4576,6 +4623,7 @@ static unsigned int selinux_ip_postroute_compat(struct sk_buff *skb, struct sock *sk = skb->sk; struct sk_security_struct *sksec; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; char *addrp; u8 proto; @@ -4584,6 +4632,7 @@ static unsigned int selinux_ip_postroute_compat(struct sk_buff *skb, sksec = sk->sk_security; COMMON_AUDIT_DATA_INIT(&ad, NET); + ad.selinux_audit_data = &sad; ad.u.net.netif = ifindex; ad.u.net.family = family; if (selinux_parse_skb(skb, &ad, &addrp, 0, &proto)) @@ -4607,6 +4656,7 @@ static unsigned int selinux_ip_postroute(struct sk_buff *skb, int ifindex, u32 peer_sid; struct sock *sk; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; char *addrp; u8 secmark_active; u8 peerlbl_active; @@ -4653,6 +4703,7 @@ static unsigned int selinux_ip_postroute(struct sk_buff *skb, int ifindex, } COMMON_AUDIT_DATA_INIT(&ad, NET); + ad.selinux_audit_data = &sad; ad.u.net.netif = ifindex; ad.u.net.family = family; if (selinux_parse_skb(skb, &ad, &addrp, 0, NULL)) @@ -4769,11 +4820,13 @@ static int ipc_has_perm(struct kern_ipc_perm *ipc_perms, { struct ipc_security_struct *isec; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; u32 sid = current_sid(); isec = ipc_perms->security; COMMON_AUDIT_DATA_INIT(&ad, IPC); + ad.selinux_audit_data = &sad; ad.u.ipc_id = ipc_perms->key; return avc_has_perm(sid, isec->sid, isec->sclass, perms, &ad); @@ -4794,6 +4847,7 @@ static int selinux_msg_queue_alloc_security(struct msg_queue *msq) { struct ipc_security_struct *isec; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; u32 sid = current_sid(); int rc; @@ -4804,6 +4858,7 @@ static int selinux_msg_queue_alloc_security(struct msg_queue *msq) isec = msq->q_perm.security; COMMON_AUDIT_DATA_INIT(&ad, IPC); + ad.selinux_audit_data = &sad; ad.u.ipc_id = msq->q_perm.key; rc = avc_has_perm(sid, isec->sid, SECCLASS_MSGQ, @@ -4824,11 +4879,13 @@ static int selinux_msg_queue_associate(struct msg_queue *msq, int msqflg) { struct ipc_security_struct *isec; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; u32 sid = current_sid(); isec = msq->q_perm.security; COMMON_AUDIT_DATA_INIT(&ad, IPC); + ad.selinux_audit_data = &sad; ad.u.ipc_id = msq->q_perm.key; return avc_has_perm(sid, isec->sid, SECCLASS_MSGQ, @@ -4868,6 +4925,7 @@ static int selinux_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg, struct ipc_security_struct *isec; struct msg_security_struct *msec; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; u32 sid = current_sid(); int rc; @@ -4889,6 +4947,7 @@ static int selinux_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg, } COMMON_AUDIT_DATA_INIT(&ad, IPC); + ad.selinux_audit_data = &sad; ad.u.ipc_id = msq->q_perm.key; /* Can this process write to the queue? */ @@ -4913,6 +4972,7 @@ static int selinux_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg, struct ipc_security_struct *isec; struct msg_security_struct *msec; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; u32 sid = task_sid(target); int rc; @@ -4920,6 +4980,7 @@ static int selinux_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg, msec = msg->security; COMMON_AUDIT_DATA_INIT(&ad, IPC); + ad.selinux_audit_data = &sad; ad.u.ipc_id = msq->q_perm.key; rc = avc_has_perm(sid, isec->sid, @@ -4935,6 +4996,7 @@ static int selinux_shm_alloc_security(struct shmid_kernel *shp) { struct ipc_security_struct *isec; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; u32 sid = current_sid(); int rc; @@ -4945,6 +5007,7 @@ static int selinux_shm_alloc_security(struct shmid_kernel *shp) isec = shp->shm_perm.security; COMMON_AUDIT_DATA_INIT(&ad, IPC); + ad.selinux_audit_data = &sad; ad.u.ipc_id = shp->shm_perm.key; rc = avc_has_perm(sid, isec->sid, SECCLASS_SHM, @@ -4965,11 +5028,13 @@ static int selinux_shm_associate(struct shmid_kernel *shp, int shmflg) { struct ipc_security_struct *isec; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; u32 sid = current_sid(); isec = shp->shm_perm.security; COMMON_AUDIT_DATA_INIT(&ad, IPC); + ad.selinux_audit_data = &sad; ad.u.ipc_id = shp->shm_perm.key; return avc_has_perm(sid, isec->sid, SECCLASS_SHM, @@ -5027,6 +5092,7 @@ static int selinux_sem_alloc_security(struct sem_array *sma) { struct ipc_security_struct *isec; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; u32 sid = current_sid(); int rc; @@ -5037,6 +5103,7 @@ static int selinux_sem_alloc_security(struct sem_array *sma) isec = sma->sem_perm.security; COMMON_AUDIT_DATA_INIT(&ad, IPC); + ad.selinux_audit_data = &sad; ad.u.ipc_id = sma->sem_perm.key; rc = avc_has_perm(sid, isec->sid, SECCLASS_SEM, @@ -5057,11 +5124,13 @@ static int selinux_sem_associate(struct sem_array *sma, int semflg) { struct ipc_security_struct *isec; struct common_audit_data ad; + struct selinux_audit_data sad = {0,}; u32 sid = current_sid(); isec = sma->sem_perm.security; COMMON_AUDIT_DATA_INIT(&ad, IPC); + ad.selinux_audit_data = &sad; ad.u.ipc_id = sma->sem_perm.key; return avc_has_perm(sid, isec->sid, SECCLASS_SEM, diff --git a/security/selinux/include/avc.h b/security/selinux/include/avc.h index 005a91b..fa13f17 100644 --- a/security/selinux/include/avc.h +++ b/security/selinux/include/avc.h @@ -46,6 +46,22 @@ struct avc_cache_stats { unsigned int frees; }; +struct selinux_audit_data { + u32 ssid; + u32 tsid; + u16 tclass; + u32 requested; + u32 audited; + u32 denied; + /* + * auditdeny is a bit tricky and unintuitive. See the + * comments in avc.c for it's meaning and usage. + */ + u32 auditdeny; + struct av_decision *avd; + int result; +}; + /* * AVC operations */ diff --git a/security/smack/smack.h b/security/smack/smack.h index 2ad0065..ccba382 100644 --- a/security/smack/smack.h +++ b/security/smack/smack.h @@ -185,6 +185,15 @@ struct smack_known { */ #define SMK_NUM_ACCESS_TYPE 5 +/* SMACK data */ +struct smack_audit_data { + const char *function; + char *subject; + char *object; + char *request; + int result; +}; + /* * Smack audit data; is empty if CONFIG_AUDIT not set * to save some stack @@ -192,6 +201,7 @@ struct smack_known { struct smk_audit_info { #ifdef CONFIG_AUDIT struct common_audit_data a; + struct smack_audit_data sad; #endif }; /* @@ -311,7 +321,8 @@ static inline void smk_ad_init(struct smk_audit_info *a, const char *func, { memset(a, 0, sizeof(*a)); a->a.type = type; - a->a.smack_audit_data.function = func; + a->a.smack_audit_data = &a->sad; + a->a.smack_audit_data->function = func; } static inline void smk_ad_setfield_u_tsk(struct smk_audit_info *a, diff --git a/security/smack/smack_access.c b/security/smack/smack_access.c index cc7cb6e..2af7fcc 100644 --- a/security/smack/smack_access.c +++ b/security/smack/smack_access.c @@ -275,9 +275,9 @@ static inline void smack_str_from_perm(char *string, int access) static void smack_log_callback(struct audit_buffer *ab, void *a) { struct common_audit_data *ad = a; - struct smack_audit_data *sad = &ad->smack_audit_data; + struct smack_audit_data *sad = ad->smack_audit_data; audit_log_format(ab, "lsm=SMACK fn=%s action=%s", - ad->smack_audit_data.function, + ad->smack_audit_data->function, sad->result ? "denied" : "granted"); audit_log_format(ab, " subject="); audit_log_untrustedstring(ab, sad->subject); @@ -310,11 +310,12 @@ void smack_log(char *subject_label, char *object_label, int request, if (result == 0 && (log_policy & SMACK_AUDIT_ACCEPT) == 0) return; - if (a->smack_audit_data.function == NULL) - a->smack_audit_data.function = "unknown"; + sad = a->smack_audit_data; + + if (sad->function == NULL) + sad->function = "unknown"; /* end preparing the audit data */ - sad = &a->smack_audit_data; smack_str_from_perm(request_buffer, request); sad->subject = subject_label; sad->object = object_label; -- cgit v0.10.2 From 48c62af68a403ef1655546bd3e021070c8508573 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Mon, 2 Apr 2012 13:15:44 -0400 Subject: LSM: shrink the common_audit_data data union After shrinking the common_audit_data stack usage for private LSM data I'm not going to shrink the data union. To do this I'm going to move anything larger than 2 void * ptrs to it's own structure and require it to be declared separately on the calling stack. Thus hot paths which don't need more than a couple pointer don't have to declare space to hold large unneeded structures. I could get this down to one void * by dealing with the key struct and the struct path. We'll see if that is helpful after taking care of networking. Signed-off-by: Eric Paris Signed-off-by: Linus Torvalds diff --git a/include/linux/lsm_audit.h b/include/linux/lsm_audit.h index 6f4fb37..d1b073f 100644 --- a/include/linux/lsm_audit.h +++ b/include/linux/lsm_audit.h @@ -22,6 +22,23 @@ #include #include +struct lsm_network_audit { + int netif; + struct sock *sk; + u16 family; + __be16 dport; + __be16 sport; + union { + struct { + __be32 daddr; + __be32 saddr; + } v4; + struct { + struct in6_addr daddr; + struct in6_addr saddr; + } v6; + } fam; +}; /* Auxiliary data to use in generating the audit record. */ struct common_audit_data { @@ -41,23 +58,7 @@ struct common_audit_data { struct path path; struct dentry *dentry; struct inode *inode; - struct { - int netif; - struct sock *sk; - u16 family; - __be16 dport; - __be16 sport; - union { - struct { - __be32 daddr; - __be32 saddr; - } v4; - struct { - struct in6_addr daddr; - struct in6_addr saddr; - } v6; - } fam; - } net; + struct lsm_network_audit *net; int cap; int ipc_id; struct task_struct *tsk; diff --git a/security/lsm_audit.c b/security/lsm_audit.c index 8b8f090..e96c6aa 100644 --- a/security/lsm_audit.c +++ b/security/lsm_audit.c @@ -49,8 +49,8 @@ int ipv4_skb_to_auditdata(struct sk_buff *skb, if (ih == NULL) return -EINVAL; - ad->u.net.v4info.saddr = ih->saddr; - ad->u.net.v4info.daddr = ih->daddr; + ad->u.net->v4info.saddr = ih->saddr; + ad->u.net->v4info.daddr = ih->daddr; if (proto) *proto = ih->protocol; @@ -64,8 +64,8 @@ int ipv4_skb_to_auditdata(struct sk_buff *skb, if (th == NULL) break; - ad->u.net.sport = th->source; - ad->u.net.dport = th->dest; + ad->u.net->sport = th->source; + ad->u.net->dport = th->dest; break; } case IPPROTO_UDP: { @@ -73,8 +73,8 @@ int ipv4_skb_to_auditdata(struct sk_buff *skb, if (uh == NULL) break; - ad->u.net.sport = uh->source; - ad->u.net.dport = uh->dest; + ad->u.net->sport = uh->source; + ad->u.net->dport = uh->dest; break; } case IPPROTO_DCCP: { @@ -82,16 +82,16 @@ int ipv4_skb_to_auditdata(struct sk_buff *skb, if (dh == NULL) break; - ad->u.net.sport = dh->dccph_sport; - ad->u.net.dport = dh->dccph_dport; + ad->u.net->sport = dh->dccph_sport; + ad->u.net->dport = dh->dccph_dport; break; } case IPPROTO_SCTP: { struct sctphdr *sh = sctp_hdr(skb); if (sh == NULL) break; - ad->u.net.sport = sh->source; - ad->u.net.dport = sh->dest; + ad->u.net->sport = sh->source; + ad->u.net->dport = sh->dest; break; } default: @@ -119,8 +119,8 @@ int ipv6_skb_to_auditdata(struct sk_buff *skb, ip6 = ipv6_hdr(skb); if (ip6 == NULL) return -EINVAL; - ad->u.net.v6info.saddr = ip6->saddr; - ad->u.net.v6info.daddr = ip6->daddr; + ad->u.net->v6info.saddr = ip6->saddr; + ad->u.net->v6info.daddr = ip6->daddr; ret = 0; /* IPv6 can have several extension header before the Transport header * skip them */ @@ -140,8 +140,8 @@ int ipv6_skb_to_auditdata(struct sk_buff *skb, if (th == NULL) break; - ad->u.net.sport = th->source; - ad->u.net.dport = th->dest; + ad->u.net->sport = th->source; + ad->u.net->dport = th->dest; break; } case IPPROTO_UDP: { @@ -151,8 +151,8 @@ int ipv6_skb_to_auditdata(struct sk_buff *skb, if (uh == NULL) break; - ad->u.net.sport = uh->source; - ad->u.net.dport = uh->dest; + ad->u.net->sport = uh->source; + ad->u.net->dport = uh->dest; break; } case IPPROTO_DCCP: { @@ -162,8 +162,8 @@ int ipv6_skb_to_auditdata(struct sk_buff *skb, if (dh == NULL) break; - ad->u.net.sport = dh->dccph_sport; - ad->u.net.dport = dh->dccph_dport; + ad->u.net->sport = dh->dccph_sport; + ad->u.net->dport = dh->dccph_dport; break; } case IPPROTO_SCTP: { @@ -172,8 +172,8 @@ int ipv6_skb_to_auditdata(struct sk_buff *skb, sh = skb_header_pointer(skb, offset, sizeof(_sctph), &_sctph); if (sh == NULL) break; - ad->u.net.sport = sh->source; - ad->u.net.dport = sh->dest; + ad->u.net->sport = sh->source; + ad->u.net->dport = sh->dest; break; } default: @@ -281,8 +281,8 @@ static void dump_common_audit_data(struct audit_buffer *ab, } break; case LSM_AUDIT_DATA_NET: - if (a->u.net.sk) { - struct sock *sk = a->u.net.sk; + if (a->u.net->sk) { + struct sock *sk = a->u.net->sk; struct unix_sock *u; int len = 0; char *p = NULL; @@ -330,29 +330,29 @@ static void dump_common_audit_data(struct audit_buffer *ab, } } - switch (a->u.net.family) { + switch (a->u.net->family) { case AF_INET: - print_ipv4_addr(ab, a->u.net.v4info.saddr, - a->u.net.sport, + print_ipv4_addr(ab, a->u.net->v4info.saddr, + a->u.net->sport, "saddr", "src"); - print_ipv4_addr(ab, a->u.net.v4info.daddr, - a->u.net.dport, + print_ipv4_addr(ab, a->u.net->v4info.daddr, + a->u.net->dport, "daddr", "dest"); break; case AF_INET6: - print_ipv6_addr(ab, &a->u.net.v6info.saddr, - a->u.net.sport, + print_ipv6_addr(ab, &a->u.net->v6info.saddr, + a->u.net->sport, "saddr", "src"); - print_ipv6_addr(ab, &a->u.net.v6info.daddr, - a->u.net.dport, + print_ipv6_addr(ab, &a->u.net->v6info.daddr, + a->u.net->dport, "daddr", "dest"); break; } - if (a->u.net.netif > 0) { + if (a->u.net->netif > 0) { struct net_device *dev; /* NOTE: we always use init's namespace */ - dev = dev_get_by_index(&init_net, a->u.net.netif); + dev = dev_get_by_index(&init_net, a->u.net->netif); if (dev) { audit_log_format(ab, " netif=%s", dev->name); dev_put(dev); diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 3861ce4..d85b793 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -3517,8 +3517,8 @@ static int selinux_parse_skb_ipv4(struct sk_buff *skb, if (ihlen < sizeof(_iph)) goto out; - ad->u.net.v4info.saddr = ih->saddr; - ad->u.net.v4info.daddr = ih->daddr; + ad->u.net->v4info.saddr = ih->saddr; + ad->u.net->v4info.daddr = ih->daddr; ret = 0; if (proto) @@ -3536,8 +3536,8 @@ static int selinux_parse_skb_ipv4(struct sk_buff *skb, if (th == NULL) break; - ad->u.net.sport = th->source; - ad->u.net.dport = th->dest; + ad->u.net->sport = th->source; + ad->u.net->dport = th->dest; break; } @@ -3552,8 +3552,8 @@ static int selinux_parse_skb_ipv4(struct sk_buff *skb, if (uh == NULL) break; - ad->u.net.sport = uh->source; - ad->u.net.dport = uh->dest; + ad->u.net->sport = uh->source; + ad->u.net->dport = uh->dest; break; } @@ -3568,8 +3568,8 @@ static int selinux_parse_skb_ipv4(struct sk_buff *skb, if (dh == NULL) break; - ad->u.net.sport = dh->dccph_sport; - ad->u.net.dport = dh->dccph_dport; + ad->u.net->sport = dh->dccph_sport; + ad->u.net->dport = dh->dccph_dport; break; } @@ -3596,8 +3596,8 @@ static int selinux_parse_skb_ipv6(struct sk_buff *skb, if (ip6 == NULL) goto out; - ad->u.net.v6info.saddr = ip6->saddr; - ad->u.net.v6info.daddr = ip6->daddr; + ad->u.net->v6info.saddr = ip6->saddr; + ad->u.net->v6info.daddr = ip6->daddr; ret = 0; nexthdr = ip6->nexthdr; @@ -3617,8 +3617,8 @@ static int selinux_parse_skb_ipv6(struct sk_buff *skb, if (th == NULL) break; - ad->u.net.sport = th->source; - ad->u.net.dport = th->dest; + ad->u.net->sport = th->source; + ad->u.net->dport = th->dest; break; } @@ -3629,8 +3629,8 @@ static int selinux_parse_skb_ipv6(struct sk_buff *skb, if (uh == NULL) break; - ad->u.net.sport = uh->source; - ad->u.net.dport = uh->dest; + ad->u.net->sport = uh->source; + ad->u.net->dport = uh->dest; break; } @@ -3641,8 +3641,8 @@ static int selinux_parse_skb_ipv6(struct sk_buff *skb, if (dh == NULL) break; - ad->u.net.sport = dh->dccph_sport; - ad->u.net.dport = dh->dccph_dport; + ad->u.net->sport = dh->dccph_sport; + ad->u.net->dport = dh->dccph_dport; break; } @@ -3662,13 +3662,13 @@ static int selinux_parse_skb(struct sk_buff *skb, struct common_audit_data *ad, char *addrp; int ret; - switch (ad->u.net.family) { + switch (ad->u.net->family) { case PF_INET: ret = selinux_parse_skb_ipv4(skb, ad, proto); if (ret) goto parse_error; - addrp = (char *)(src ? &ad->u.net.v4info.saddr : - &ad->u.net.v4info.daddr); + addrp = (char *)(src ? &ad->u.net->v4info.saddr : + &ad->u.net->v4info.daddr); goto okay; #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) @@ -3676,8 +3676,8 @@ static int selinux_parse_skb(struct sk_buff *skb, struct common_audit_data *ad, ret = selinux_parse_skb_ipv6(skb, ad, proto); if (ret) goto parse_error; - addrp = (char *)(src ? &ad->u.net.v6info.saddr : - &ad->u.net.v6info.daddr); + addrp = (char *)(src ? &ad->u.net->v6info.saddr : + &ad->u.net->v6info.daddr); goto okay; #endif /* IPV6 */ default: @@ -3752,6 +3752,7 @@ static int sock_has_perm(struct task_struct *task, struct sock *sk, u32 perms) struct sk_security_struct *sksec = sk->sk_security; struct common_audit_data ad; struct selinux_audit_data sad = {0,}; + struct lsm_network_audit net = {0,}; u32 tsid = task_sid(task); if (sksec->sid == SECINITSID_KERNEL) @@ -3759,7 +3760,8 @@ static int sock_has_perm(struct task_struct *task, struct sock *sk, u32 perms) COMMON_AUDIT_DATA_INIT(&ad, NET); ad.selinux_audit_data = &sad; - ad.u.net.sk = sk; + ad.u.net = &net; + ad.u.net->sk = sk; return avc_has_perm(tsid, sksec->sid, sksec->sclass, perms, &ad); } @@ -3838,6 +3840,7 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in struct sk_security_struct *sksec = sk->sk_security; struct common_audit_data ad; struct selinux_audit_data sad = {0,}; + struct lsm_network_audit net = {0,}; struct sockaddr_in *addr4 = NULL; struct sockaddr_in6 *addr6 = NULL; unsigned short snum; @@ -3865,8 +3868,9 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in goto out; COMMON_AUDIT_DATA_INIT(&ad, NET); ad.selinux_audit_data = &sad; - ad.u.net.sport = htons(snum); - ad.u.net.family = family; + ad.u.net = &net; + ad.u.net->sport = htons(snum); + ad.u.net->family = family; err = avc_has_perm(sksec->sid, sid, sksec->sclass, SOCKET__NAME_BIND, &ad); @@ -3899,13 +3903,14 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in COMMON_AUDIT_DATA_INIT(&ad, NET); ad.selinux_audit_data = &sad; - ad.u.net.sport = htons(snum); - ad.u.net.family = family; + ad.u.net = &net; + ad.u.net->sport = htons(snum); + ad.u.net->family = family; if (family == PF_INET) - ad.u.net.v4info.saddr = addr4->sin_addr.s_addr; + ad.u.net->v4info.saddr = addr4->sin_addr.s_addr; else - ad.u.net.v6info.saddr = addr6->sin6_addr; + ad.u.net->v6info.saddr = addr6->sin6_addr; err = avc_has_perm(sksec->sid, sid, sksec->sclass, node_perm, &ad); @@ -3933,6 +3938,7 @@ static int selinux_socket_connect(struct socket *sock, struct sockaddr *address, sksec->sclass == SECCLASS_DCCP_SOCKET) { struct common_audit_data ad; struct selinux_audit_data sad = {0,}; + struct lsm_network_audit net = {0,}; struct sockaddr_in *addr4 = NULL; struct sockaddr_in6 *addr6 = NULL; unsigned short snum; @@ -3959,8 +3965,9 @@ static int selinux_socket_connect(struct socket *sock, struct sockaddr *address, COMMON_AUDIT_DATA_INIT(&ad, NET); ad.selinux_audit_data = &sad; - ad.u.net.dport = htons(snum); - ad.u.net.family = sk->sk_family; + ad.u.net = &net; + ad.u.net->dport = htons(snum); + ad.u.net->family = sk->sk_family; err = avc_has_perm(sksec->sid, sid, sksec->sclass, perm, &ad); if (err) goto out; @@ -4050,11 +4057,13 @@ static int selinux_socket_unix_stream_connect(struct sock *sock, struct sk_security_struct *sksec_new = newsk->sk_security; struct common_audit_data ad; struct selinux_audit_data sad = {0,}; + struct lsm_network_audit net = {0,}; int err; COMMON_AUDIT_DATA_INIT(&ad, NET); ad.selinux_audit_data = &sad; - ad.u.net.sk = other; + ad.u.net = &net; + ad.u.net->sk = other; err = avc_has_perm(sksec_sock->sid, sksec_other->sid, sksec_other->sclass, @@ -4082,10 +4091,12 @@ static int selinux_socket_unix_may_send(struct socket *sock, struct sk_security_struct *osec = other->sk->sk_security; struct common_audit_data ad; struct selinux_audit_data sad = {0,}; + struct lsm_network_audit net = {0,}; COMMON_AUDIT_DATA_INIT(&ad, NET); ad.selinux_audit_data = &sad; - ad.u.net.sk = other->sk; + ad.u.net = &net; + ad.u.net->sk = other->sk; return avc_has_perm(ssec->sid, osec->sid, osec->sclass, SOCKET__SENDTO, &ad); @@ -4122,12 +4133,14 @@ static int selinux_sock_rcv_skb_compat(struct sock *sk, struct sk_buff *skb, u32 sk_sid = sksec->sid; struct common_audit_data ad; struct selinux_audit_data sad = {0,}; + struct lsm_network_audit net = {0,}; char *addrp; COMMON_AUDIT_DATA_INIT(&ad, NET); ad.selinux_audit_data = &sad; - ad.u.net.netif = skb->skb_iif; - ad.u.net.family = family; + ad.u.net = &net; + ad.u.net->netif = skb->skb_iif; + ad.u.net->family = family; err = selinux_parse_skb(skb, &ad, &addrp, 1, NULL); if (err) return err; @@ -4155,6 +4168,7 @@ static int selinux_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) u32 sk_sid = sksec->sid; struct common_audit_data ad; struct selinux_audit_data sad = {0,}; + struct lsm_network_audit net = {0,}; char *addrp; u8 secmark_active; u8 peerlbl_active; @@ -4180,8 +4194,9 @@ static int selinux_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) COMMON_AUDIT_DATA_INIT(&ad, NET); ad.selinux_audit_data = &sad; - ad.u.net.netif = skb->skb_iif; - ad.u.net.family = family; + ad.u.net = &net; + ad.u.net->netif = skb->skb_iif; + ad.u.net->family = family; err = selinux_parse_skb(skb, &ad, &addrp, 1, NULL); if (err) return err; @@ -4517,6 +4532,7 @@ static unsigned int selinux_ip_forward(struct sk_buff *skb, int ifindex, u32 peer_sid; struct common_audit_data ad; struct selinux_audit_data sad = {0,}; + struct lsm_network_audit net = {0,}; u8 secmark_active; u8 netlbl_active; u8 peerlbl_active; @@ -4535,8 +4551,9 @@ static unsigned int selinux_ip_forward(struct sk_buff *skb, int ifindex, COMMON_AUDIT_DATA_INIT(&ad, NET); ad.selinux_audit_data = &sad; - ad.u.net.netif = ifindex; - ad.u.net.family = family; + ad.u.net = &net; + ad.u.net->netif = ifindex; + ad.u.net->family = family; if (selinux_parse_skb(skb, &ad, &addrp, 1, NULL) != 0) return NF_DROP; @@ -4624,6 +4641,7 @@ static unsigned int selinux_ip_postroute_compat(struct sk_buff *skb, struct sk_security_struct *sksec; struct common_audit_data ad; struct selinux_audit_data sad = {0,}; + struct lsm_network_audit net = {0,}; char *addrp; u8 proto; @@ -4633,8 +4651,9 @@ static unsigned int selinux_ip_postroute_compat(struct sk_buff *skb, COMMON_AUDIT_DATA_INIT(&ad, NET); ad.selinux_audit_data = &sad; - ad.u.net.netif = ifindex; - ad.u.net.family = family; + ad.u.net = &net; + ad.u.net->netif = ifindex; + ad.u.net->family = family; if (selinux_parse_skb(skb, &ad, &addrp, 0, &proto)) return NF_DROP; @@ -4657,6 +4676,7 @@ static unsigned int selinux_ip_postroute(struct sk_buff *skb, int ifindex, struct sock *sk; struct common_audit_data ad; struct selinux_audit_data sad = {0,}; + struct lsm_network_audit net = {0,}; char *addrp; u8 secmark_active; u8 peerlbl_active; @@ -4704,8 +4724,9 @@ static unsigned int selinux_ip_postroute(struct sk_buff *skb, int ifindex, COMMON_AUDIT_DATA_INIT(&ad, NET); ad.selinux_audit_data = &sad; - ad.u.net.netif = ifindex; - ad.u.net.family = family; + ad.u.net = &net; + ad.u.net->netif = ifindex; + ad.u.net->family = family; if (selinux_parse_skb(skb, &ad, &addrp, 0, NULL)) return NF_DROP; diff --git a/security/smack/smack.h b/security/smack/smack.h index ccba382..4ede719 100644 --- a/security/smack/smack.h +++ b/security/smack/smack.h @@ -325,6 +325,14 @@ static inline void smk_ad_init(struct smk_audit_info *a, const char *func, a->a.smack_audit_data->function = func; } +static inline void smk_ad_init_net(struct smk_audit_info *a, const char *func, + char type, struct lsm_network_audit *net) +{ + smk_ad_init(a, func, type); + memset(net, 0, sizeof(*net)); + a->a.u.net = net; +} + static inline void smk_ad_setfield_u_tsk(struct smk_audit_info *a, struct task_struct *t) { @@ -348,7 +356,7 @@ static inline void smk_ad_setfield_u_fs_path(struct smk_audit_info *a, static inline void smk_ad_setfield_u_net_sk(struct smk_audit_info *a, struct sock *sk) { - a->a.u.net.sk = sk; + a->a.u.net->sk = sk; } #else /* no AUDIT */ diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index cd667b4..81c03a5 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -1939,16 +1939,17 @@ static int smack_netlabel_send(struct sock *sk, struct sockaddr_in *sap) char *hostsp; struct socket_smack *ssp = sk->sk_security; struct smk_audit_info ad; + struct lsm_network_audit net; rcu_read_lock(); hostsp = smack_host_label(sap); if (hostsp != NULL) { sk_lbl = SMACK_UNLABELED_SOCKET; #ifdef CONFIG_AUDIT - smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_NET); - ad.a.u.net.family = sap->sin_family; - ad.a.u.net.dport = sap->sin_port; - ad.a.u.net.v4info.daddr = sap->sin_addr.s_addr; + smk_ad_init_net(&ad, __func__, LSM_AUDIT_DATA_NET, &net); + ad.a.u.net->family = sap->sin_family; + ad.a.u.net->dport = sap->sin_port; + ad.a.u.net->v4info.daddr = sap->sin_addr.s_addr; #endif rc = smk_access(ssp->smk_out, hostsp, MAY_WRITE, &ad); } else { @@ -2808,9 +2809,10 @@ static int smack_unix_stream_connect(struct sock *sock, struct socket_smack *osp = other->sk_security; struct socket_smack *nsp = newsk->sk_security; struct smk_audit_info ad; + struct lsm_network_audit net; int rc = 0; - smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_NET); + smk_ad_init_net(&ad, __func__, LSM_AUDIT_DATA_NET, &net); smk_ad_setfield_u_net_sk(&ad, other); if (!capable(CAP_MAC_OVERRIDE)) @@ -2840,9 +2842,10 @@ static int smack_unix_may_send(struct socket *sock, struct socket *other) struct socket_smack *ssp = sock->sk->sk_security; struct socket_smack *osp = other->sk->sk_security; struct smk_audit_info ad; + struct lsm_network_audit net; int rc = 0; - smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_NET); + smk_ad_init_net(&ad, __func__, LSM_AUDIT_DATA_NET, &net); smk_ad_setfield_u_net_sk(&ad, other->sk); if (!capable(CAP_MAC_OVERRIDE)) @@ -2990,6 +2993,7 @@ static int smack_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) char *csp; int rc; struct smk_audit_info ad; + struct lsm_network_audit net; if (sk->sk_family != PF_INET && sk->sk_family != PF_INET6) return 0; @@ -3007,9 +3011,9 @@ static int smack_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) netlbl_secattr_destroy(&secattr); #ifdef CONFIG_AUDIT - smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_NET); - ad.a.u.net.family = sk->sk_family; - ad.a.u.net.netif = skb->skb_iif; + smk_ad_init_net(&ad, __func__, LSM_AUDIT_DATA_NET, &net); + ad.a.u.net->family = sk->sk_family; + ad.a.u.net->netif = skb->skb_iif; ipv4_skb_to_auditdata(skb, &ad.a, NULL); #endif /* @@ -3152,6 +3156,7 @@ static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb, char *sp; int rc; struct smk_audit_info ad; + struct lsm_network_audit net; /* handle mapped IPv4 packets arriving via IPv6 sockets */ if (family == PF_INET6 && skb->protocol == htons(ETH_P_IP)) @@ -3166,9 +3171,9 @@ static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb, netlbl_secattr_destroy(&secattr); #ifdef CONFIG_AUDIT - smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_NET); - ad.a.u.net.family = family; - ad.a.u.net.netif = skb->skb_iif; + smk_ad_init_net(&ad, __func__, LSM_AUDIT_DATA_NET, &net); + ad.a.u.net->family = family; + ad.a.u.net->netif = skb->skb_iif; ipv4_skb_to_auditdata(skb, &ad.a, NULL); #endif /* -- cgit v0.10.2 From 7f6a47cf1477ffae9cff1d6ee181e2ce6bfb2f02 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Mon, 2 Apr 2012 13:15:50 -0400 Subject: SELinux: remove avd from selinux_audit_data We do not use it. Remove it. Signed-off-by: Eric Paris Signed-off-by: Linus Torvalds diff --git a/security/selinux/include/avc.h b/security/selinux/include/avc.h index fa13f17..09c3eda 100644 --- a/security/selinux/include/avc.h +++ b/security/selinux/include/avc.h @@ -58,7 +58,6 @@ struct selinux_audit_data { * comments in avc.c for it's meaning and usage. */ u32 auditdeny; - struct av_decision *avd; int result; }; -- cgit v0.10.2 From f8294f1144ad0630075918df4bf94075f5384604 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Mon, 2 Apr 2012 13:15:55 -0400 Subject: SELinux: remove avd from slow_avc_audit() We don't use the argument, so remove it. Signed-off-by: Eric Paris Signed-off-by: Linus Torvalds diff --git a/security/selinux/avc.c b/security/selinux/avc.c index 00f3860..b5545a8 100644 --- a/security/selinux/avc.c +++ b/security/selinux/avc.c @@ -460,7 +460,7 @@ static void avc_audit_post_callback(struct audit_buffer *ab, void *a) /* This is the slow part of avc audit with big stack footprint */ static noinline int slow_avc_audit(u32 ssid, u32 tsid, u16 tclass, u32 requested, u32 audited, u32 denied, - struct av_decision *avd, struct common_audit_data *a, + struct common_audit_data *a, unsigned flags) { struct common_audit_data stack_data; @@ -553,7 +553,7 @@ inline int avc_audit(u32 ssid, u32 tsid, return slow_avc_audit(ssid, tsid, tclass, requested, audited, denied, - avd, a, flags); + a, flags); } /** -- cgit v0.10.2 From 3f0882c48286e7bdb0bbdec9c4bfa934e0db8e09 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Tue, 3 Apr 2012 09:38:00 -0700 Subject: SELinux: do not allocate stack space for AVC data unless needed Instead of declaring the entire selinux_audit_data on the stack when we start an operation on declare it on the stack if we are going to use it. We know it's usefulness at the end of the security decision and can declare it there. Signed-off-by: Eric Paris Signed-off-by: Linus Torvalds diff --git a/security/selinux/avc.c b/security/selinux/avc.c index b5545a8..36c42bb 100644 --- a/security/selinux/avc.c +++ b/security/selinux/avc.c @@ -436,9 +436,9 @@ static void avc_audit_pre_callback(struct audit_buffer *ab, void *a) { struct common_audit_data *ad = a; audit_log_format(ab, "avc: %s ", - ad->selinux_audit_data->denied ? "denied" : "granted"); - avc_dump_av(ab, ad->selinux_audit_data->tclass, - ad->selinux_audit_data->audited); + ad->selinux_audit_data->slad->denied ? "denied" : "granted"); + avc_dump_av(ab, ad->selinux_audit_data->slad->tclass, + ad->selinux_audit_data->slad->audited); audit_log_format(ab, " for "); } @@ -452,9 +452,9 @@ static void avc_audit_post_callback(struct audit_buffer *ab, void *a) { struct common_audit_data *ad = a; audit_log_format(ab, " "); - avc_dump_query(ab, ad->selinux_audit_data->ssid, - ad->selinux_audit_data->tsid, - ad->selinux_audit_data->tclass); + avc_dump_query(ab, ad->selinux_audit_data->slad->ssid, + ad->selinux_audit_data->slad->tsid, + ad->selinux_audit_data->slad->tclass); } /* This is the slow part of avc audit with big stack footprint */ @@ -465,6 +465,7 @@ static noinline int slow_avc_audit(u32 ssid, u32 tsid, u16 tclass, { struct common_audit_data stack_data; struct selinux_audit_data sad = {0,}; + struct selinux_late_audit_data slad; if (!a) { a = &stack_data; @@ -483,12 +484,14 @@ static noinline int slow_avc_audit(u32 ssid, u32 tsid, u16 tclass, (flags & MAY_NOT_BLOCK)) return -ECHILD; - a->selinux_audit_data->tclass = tclass; - a->selinux_audit_data->requested = requested; - a->selinux_audit_data->ssid = ssid; - a->selinux_audit_data->tsid = tsid; - a->selinux_audit_data->audited = audited; - a->selinux_audit_data->denied = denied; + slad.tclass = tclass; + slad.requested = requested; + slad.ssid = ssid; + slad.tsid = tsid; + slad.audited = audited; + slad.denied = denied; + + a->selinux_audit_data->slad = &slad; a->lsm_pre_audit = avc_audit_pre_callback; a->lsm_post_audit = avc_audit_post_callback; common_lsm_audit(a); diff --git a/security/selinux/include/avc.h b/security/selinux/include/avc.h index 09c3eda..1931370 100644 --- a/security/selinux/include/avc.h +++ b/security/selinux/include/avc.h @@ -46,19 +46,29 @@ struct avc_cache_stats { unsigned int frees; }; -struct selinux_audit_data { +/* + * We only need this data after we have decided to send an audit message. + */ +struct selinux_late_audit_data { u32 ssid; u32 tsid; u16 tclass; u32 requested; u32 audited; u32 denied; + int result; +}; + +/* + * We collect this at the beginning or during an selinux security operation + */ +struct selinux_audit_data { /* * auditdeny is a bit tricky and unintuitive. See the * comments in avc.c for it's meaning and usage. */ u32 auditdeny; - int result; + struct selinux_late_audit_data *slad; }; /* -- cgit v0.10.2 From b61c37f57988567c84359645f8202a7c84bc798a Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 2 Apr 2012 15:48:12 -0700 Subject: lsm_audit: don't specify the audit pre/post callbacks in 'struct common_audit_data' It just bloats the audit data structure for no good reason, since the only time those fields are filled are just before calling the common_lsm_audit() function, which is also the only user of those fields. So just make them be the arguments to common_lsm_audit(), rather than bloating that structure that is passed around everywhere, and is initialized in hot paths. Signed-off-by: Linus Torvalds diff --git a/include/linux/lsm_audit.h b/include/linux/lsm_audit.h index d1b073f..fad48aa 100644 --- a/include/linux/lsm_audit.h +++ b/include/linux/lsm_audit.h @@ -82,9 +82,6 @@ struct common_audit_data { struct apparmor_audit_data *apparmor_audit_data; #endif }; /* per LSM data pointer union */ - /* these callback will be implemented by a specific LSM */ - void (*lsm_pre_audit)(struct audit_buffer *, void *); - void (*lsm_post_audit)(struct audit_buffer *, void *); }; #define v4info fam.v4 @@ -101,6 +98,8 @@ int ipv6_skb_to_auditdata(struct sk_buff *skb, { memset((_d), 0, sizeof(struct common_audit_data)); \ (_d)->type = LSM_AUDIT_DATA_##_t; } -void common_lsm_audit(struct common_audit_data *a); +void common_lsm_audit(struct common_audit_data *a, + void (*pre_audit)(struct audit_buffer *, void *), + void (*post_audit)(struct audit_buffer *, void *)); #endif diff --git a/security/apparmor/audit.c b/security/apparmor/audit.c index 23f7eb6..cc3520d 100644 --- a/security/apparmor/audit.c +++ b/security/apparmor/audit.c @@ -160,9 +160,7 @@ void aa_audit_msg(int type, struct common_audit_data *sa, void (*cb) (struct audit_buffer *, void *)) { sa->aad->type = type; - sa->lsm_pre_audit = audit_pre; - sa->lsm_post_audit = cb; - common_lsm_audit(sa); + common_lsm_audit(sa, audit_pre, cb); } /** diff --git a/security/lsm_audit.c b/security/lsm_audit.c index e96c6aa..90c129b 100644 --- a/security/lsm_audit.c +++ b/security/lsm_audit.c @@ -378,11 +378,15 @@ static void dump_common_audit_data(struct audit_buffer *ab, /** * common_lsm_audit - generic LSM auditing function * @a: auxiliary audit data + * @pre_audit: lsm-specific pre-audit callback + * @post_audit: lsm-specific post-audit callback * * setup the audit buffer for common security information * uses callback to print LSM specific information */ -void common_lsm_audit(struct common_audit_data *a) +void common_lsm_audit(struct common_audit_data *a, + void (*pre_audit)(struct audit_buffer *, void *), + void (*post_audit)(struct audit_buffer *, void *)) { struct audit_buffer *ab; @@ -394,13 +398,13 @@ void common_lsm_audit(struct common_audit_data *a) if (ab == NULL) return; - if (a->lsm_pre_audit) - a->lsm_pre_audit(ab, a); + if (pre_audit) + pre_audit(ab, a); dump_common_audit_data(ab, a); - if (a->lsm_post_audit) - a->lsm_post_audit(ab, a); + if (post_audit) + post_audit(ab, a); audit_log_end(ab); } diff --git a/security/selinux/avc.c b/security/selinux/avc.c index 36c42bb..8ee42b2 100644 --- a/security/selinux/avc.c +++ b/security/selinux/avc.c @@ -492,9 +492,7 @@ static noinline int slow_avc_audit(u32 ssid, u32 tsid, u16 tclass, slad.denied = denied; a->selinux_audit_data->slad = &slad; - a->lsm_pre_audit = avc_audit_pre_callback; - a->lsm_post_audit = avc_audit_post_callback; - common_lsm_audit(a); + common_lsm_audit(a, avc_audit_pre_callback, avc_audit_post_callback); return 0; } diff --git a/security/smack/smack_access.c b/security/smack/smack_access.c index 2af7fcc..c8115f7 100644 --- a/security/smack/smack_access.c +++ b/security/smack/smack_access.c @@ -321,9 +321,8 @@ void smack_log(char *subject_label, char *object_label, int request, sad->object = object_label; sad->request = request_buffer; sad->result = result; - a->lsm_pre_audit = smack_log_callback; - common_lsm_audit(a); + common_lsm_audit(a, smack_log_callback, NULL); } #else /* #ifdef CONFIG_AUDIT */ void smack_log(char *subject_label, char *object_label, int request, -- cgit v0.10.2 From 79026ff2b6e7bee5b79a61e0721b6d9bf0e99b56 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Tue, 3 Apr 2012 09:33:58 -0700 Subject: Input: tps6507x-ts - fix MODULE_ALIAS to match driver name MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is needed to make module auto loading work. [dtor@mail.ru: remove file name from comment] Signed-off-by: Uwe Kleine-König Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/touchscreen/tps6507x-ts.c b/drivers/input/touchscreen/tps6507x-ts.c index 6c6f6d8..f7eda3d 100644 --- a/drivers/input/touchscreen/tps6507x-ts.c +++ b/drivers/input/touchscreen/tps6507x-ts.c @@ -1,6 +1,4 @@ /* - * drivers/input/touchscreen/tps6507x_ts.c - * * Touchscreen driver for the tps6507x chip. * * Copyright (c) 2009 RidgeRun (todd.fischer@ridgerun.com) @@ -376,4 +374,4 @@ module_platform_driver(tps6507x_ts_driver); MODULE_AUTHOR("Todd Fischer "); MODULE_DESCRIPTION("TPS6507x - TouchScreen driver"); MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:tps6507x-tsc"); +MODULE_ALIAS("platform:tps6507x-ts"); -- cgit v0.10.2 From d626dad58f02e13730ded6ac84d6a9e53123f0e8 Mon Sep 17 00:00:00 2001 From: Oskari Saarenmaa Date: Tue, 3 Apr 2012 09:46:32 -0700 Subject: Input: sentelic - filter taps in absolute mode Taps in absolute positioning single-finger mode are currently reported as physical clicks by the driver. This should be handled by userspace, not the kernel. When a tap occurs, the FSP_PB0_LBTN bit is set, but the FSP_PB0_PHY_BTN is not. We use this to filter out physical clicks from taps. Signed-off-by: Oskari Saarenmaa Reviewed-by: Tai-hwa Liang Reviewed-by: Chase Douglas Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/mouse/sentelic.c b/drivers/input/mouse/sentelic.c index a977bfa..661a0ca 100644 --- a/drivers/input/mouse/sentelic.c +++ b/drivers/input/mouse/sentelic.c @@ -741,6 +741,14 @@ static psmouse_ret_t fsp_process_byte(struct psmouse *psmouse) } } else { /* SFAC packet */ + if ((packet[0] & (FSP_PB0_LBTN|FSP_PB0_PHY_BTN)) == + FSP_PB0_LBTN) { + /* On-pad click in SFAC mode should be handled + * by userspace. On-pad clicks in MFMC mode + * are real clickpad clicks, and not ignored. + */ + packet[0] &= ~FSP_PB0_LBTN; + } /* no multi-finger information */ ad->last_mt_fgr = 0; -- cgit v0.10.2 From 54da0784e24d955eab5f750a8c7c602aa8d4b4e3 Mon Sep 17 00:00:00 2001 From: Russ Dill Date: Fri, 23 Mar 2012 02:21:33 -0700 Subject: ARM: OMAP2+: smsc911x: Remove odd gpmc_cfg/board_data redirection This seems to be a leftover from when gpmc-smsc911x.c was copied from gpmc-smc91x.c. Signed-off-by: Russ Dill Tested-by: Igor Grinberg Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap2/gpmc-smsc911x.c b/arch/arm/mach-omap2/gpmc-smsc911x.c index 5e5880d..aa0c296 100644 --- a/arch/arm/mach-omap2/gpmc-smsc911x.c +++ b/arch/arm/mach-omap2/gpmc-smsc911x.c @@ -26,8 +26,6 @@ #include #include -static struct omap_smsc911x_platform_data *gpmc_cfg; - static struct resource gpmc_smsc911x_resources[] = { [0] = { .flags = IORESOURCE_MEM, @@ -93,14 +91,12 @@ static struct platform_device gpmc_smsc911x_regulator = { * assume that pin multiplexing is done in the board-*.c file, * or in the bootloader. */ -void __init gpmc_smsc911x_init(struct omap_smsc911x_platform_data *board_data) +void __init gpmc_smsc911x_init(struct omap_smsc911x_platform_data *gpmc_cfg) { struct platform_device *pdev; unsigned long cs_mem_base; int ret; - gpmc_cfg = board_data; - if (!gpmc_cfg->id) { ret = platform_device_register(&gpmc_smsc911x_regulator); if (ret < 0) { -- cgit v0.10.2 From a0dbf2a726e5387251a567c8531d9fd3e34d2dfb Mon Sep 17 00:00:00 2001 From: Russ Dill Date: Fri, 23 Mar 2012 02:21:34 -0700 Subject: ARM: OMAP2+ smsc911x: Fix possible stale smsc911x flags If this function is called the first time with flags set, and the second time without flags set then the leftover flags from the first called will be used rather than the desired default flags. Signed-off-by: Russ Dill Tested-by: Igor Grinberg Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap2/gpmc-smsc911x.c b/arch/arm/mach-omap2/gpmc-smsc911x.c index aa0c296..f9446ea 100644 --- a/arch/arm/mach-omap2/gpmc-smsc911x.c +++ b/arch/arm/mach-omap2/gpmc-smsc911x.c @@ -39,7 +39,6 @@ static struct smsc911x_platform_config gpmc_smsc911x_config = { .phy_interface = PHY_INTERFACE_MODE_MII, .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN, - .flags = SMSC911X_USE_16BIT, }; static struct regulator_consumer_supply gpmc_smsc911x_supply[] = { @@ -135,8 +134,7 @@ void __init gpmc_smsc911x_init(struct omap_smsc911x_platform_data *gpmc_cfg) gpio_set_value(gpmc_cfg->gpio_reset, 1); } - if (gpmc_cfg->flags) - gpmc_smsc911x_config.flags = gpmc_cfg->flags; + gpmc_smsc911x_config.flags = gpmc_cfg->flags ? : SMSC911X_USE_16BIT; pdev = platform_device_register_resndata(NULL, "smsc911x", gpmc_cfg->id, gpmc_smsc911x_resources, ARRAY_SIZE(gpmc_smsc911x_resources), -- cgit v0.10.2 From a297068c1fa529c350e7923b85372ca3b38dcdc5 Mon Sep 17 00:00:00 2001 From: Russ Dill Date: Fri, 23 Mar 2012 02:21:35 -0700 Subject: ARM: OMAP2+: smsc911x: Remove unused rate calculation Looking back into git history, this code was never used and was probably left over from a copy/paste. Signed-off-by: Russ Dill Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c index 4c90f07..b90b319 100644 --- a/arch/arm/mach-omap2/board-omap3evm.c +++ b/arch/arm/mach-omap2/board-omap3evm.c @@ -114,15 +114,6 @@ static struct omap_smsc911x_platform_data smsc911x_cfg = { static inline void __init omap3evm_init_smsc911x(void) { - struct clk *l3ck; - unsigned int rate; - - l3ck = clk_get(NULL, "l3_ck"); - if (IS_ERR(l3ck)) - rate = 100000000; - else - rate = clk_get_rate(l3ck); - /* Configure ethernet controller reset gpio */ if (cpu_is_omap3430()) { if (get_omap3_evm_rev() == OMAP3EVM_BOARD_GEN_1) diff --git a/arch/arm/mach-omap2/board-omap3stalker.c b/arch/arm/mach-omap2/board-omap3stalker.c index 6410043..de95352 100644 --- a/arch/arm/mach-omap2/board-omap3stalker.c +++ b/arch/arm/mach-omap2/board-omap3stalker.c @@ -72,15 +72,6 @@ static struct omap_smsc911x_platform_data smsc911x_cfg = { static inline void __init omap3stalker_init_eth(void) { - struct clk *l3ck; - unsigned int rate; - - l3ck = clk_get(NULL, "l3_ck"); - if (IS_ERR(l3ck)) - rate = 100000000; - else - rate = clk_get_rate(l3ck); - omap_mux_init_gpio(19, OMAP_PIN_INPUT_PULLUP); gpmc_smsc911x_init(&smsc911x_cfg); } -- cgit v0.10.2 From bdacbce65492f54e02a97c23328ec4bbcc31554a Mon Sep 17 00:00:00 2001 From: Russ Dill Date: Fri, 23 Mar 2012 02:21:36 -0700 Subject: ARM: OMAP2+: smsc911x: Remove regulator support from gmpc-smsc911x Adding in support for regulators here creates several headaches. - Boards that declare their own regulator cannot use this function. - Multiple calls to this function require special handling. - Boards that declare id's other than '0' need special handling. Now that there is a simple regulator_register_fixed, we can push this registration back into the board files. Signed-off-by: Russ Dill Tested-by: Igor Grinberg Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap2/gpmc-smsc911x.c b/arch/arm/mach-omap2/gpmc-smsc911x.c index f9446ea..b6c77be 100644 --- a/arch/arm/mach-omap2/gpmc-smsc911x.c +++ b/arch/arm/mach-omap2/gpmc-smsc911x.c @@ -19,8 +19,6 @@ #include #include #include -#include -#include #include #include @@ -41,50 +39,6 @@ static struct smsc911x_platform_config gpmc_smsc911x_config = { .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN, }; -static struct regulator_consumer_supply gpmc_smsc911x_supply[] = { - REGULATOR_SUPPLY("vddvario", "smsc911x.0"), - REGULATOR_SUPPLY("vdd33a", "smsc911x.0"), -}; - -/* Generic regulator definition to satisfy smsc911x */ -static struct regulator_init_data gpmc_smsc911x_reg_init_data = { - .constraints = { - .min_uV = 3300000, - .max_uV = 3300000, - .valid_modes_mask = REGULATOR_MODE_NORMAL - | REGULATOR_MODE_STANDBY, - .valid_ops_mask = REGULATOR_CHANGE_MODE - | REGULATOR_CHANGE_STATUS, - }, - .num_consumer_supplies = ARRAY_SIZE(gpmc_smsc911x_supply), - .consumer_supplies = gpmc_smsc911x_supply, -}; - -static struct fixed_voltage_config gpmc_smsc911x_fixed_reg_data = { - .supply_name = "gpmc_smsc911x", - .microvolts = 3300000, - .gpio = -EINVAL, - .startup_delay = 0, - .enable_high = 0, - .enabled_at_boot = 1, - .init_data = &gpmc_smsc911x_reg_init_data, -}; - -/* - * Platform device id of 42 is a temporary fix to avoid conflicts - * with other reg-fixed-voltage devices. The real fix should - * involve the driver core providing a way of dynamically - * assigning a unique id on registration for platform devices - * in the same name space. - */ -static struct platform_device gpmc_smsc911x_regulator = { - .name = "reg-fixed-voltage", - .id = 42, - .dev = { - .platform_data = &gpmc_smsc911x_fixed_reg_data, - }, -}; - /* * Initialize smsc911x device connected to the GPMC. Note that we * assume that pin multiplexing is done in the board-*.c file, @@ -96,15 +50,6 @@ void __init gpmc_smsc911x_init(struct omap_smsc911x_platform_data *gpmc_cfg) unsigned long cs_mem_base; int ret; - if (!gpmc_cfg->id) { - ret = platform_device_register(&gpmc_smsc911x_regulator); - if (ret < 0) { - pr_err("Unable to register smsc911x regulators: %d\n", - ret); - return; - } - } - if (gpmc_cs_request(gpmc_cfg->cs, SZ_16M, &cs_mem_base) < 0) { pr_err("Failed to request GPMC mem region\n"); return; -- cgit v0.10.2 From 5b3689f4c16bc692a2e2b9808e5efc457aeae371 Mon Sep 17 00:00:00 2001 From: Russ Dill Date: Fri, 23 Mar 2012 02:21:37 -0700 Subject: ARM: OMAP2+: smsc911x: Add fixed board regulators Initialize fixed regulators in the board files. Trying to do this in a generic way in gpmc-smsc911x.c gets messy as the regulator may be provided by drivers, such as twl4030, for some boards. Signed-off-by: Russ Dill Signed-off-by: Igor Grinberg [tony@atomide.com: combined into one patch, updated comments] Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap2/board-cm-t35.c b/arch/arm/mach-omap2/board-cm-t35.c index 41b0a2f..909a8b9 100644 --- a/arch/arm/mach-omap2/board-cm-t35.c +++ b/arch/arm/mach-omap2/board-cm-t35.c @@ -26,6 +26,7 @@ #include #include +#include #include #include @@ -81,8 +82,23 @@ static struct omap_smsc911x_platform_data sb_t35_smsc911x_cfg = { .flags = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS, }; +static struct regulator_consumer_supply cm_t35_smsc911x_supplies[] = { + REGULATOR_SUPPLY("vddvario", "smsc911x.0"), + REGULATOR_SUPPLY("vdd33a", "smsc911x.0"), +}; + +static struct regulator_consumer_supply sb_t35_smsc911x_supplies[] = { + REGULATOR_SUPPLY("vddvario", "smsc911x.1"), + REGULATOR_SUPPLY("vdd33a", "smsc911x.1"), +}; + static void __init cm_t35_init_ethernet(void) { + regulator_register_fixed(0, cm_t35_smsc911x_supplies, + ARRAY_SIZE(cm_t35_smsc911x_supplies)); + regulator_register_fixed(1, sb_t35_smsc911x_supplies, + ARRAY_SIZE(sb_t35_smsc911x_supplies)); + gpmc_smsc911x_init(&cm_t35_smsc911x_cfg); gpmc_smsc911x_init(&sb_t35_smsc911x_cfg); } diff --git a/arch/arm/mach-omap2/board-igep0020.c b/arch/arm/mach-omap2/board-igep0020.c index e558800..930c0d3 100644 --- a/arch/arm/mach-omap2/board-igep0020.c +++ b/arch/arm/mach-omap2/board-igep0020.c @@ -634,8 +634,14 @@ static void __init igep_wlan_bt_init(void) static inline void __init igep_wlan_bt_init(void) { } #endif +static struct regulator_consumer_supply dummy_supplies[] = { + REGULATOR_SUPPLY("vddvario", "smsc911x.0"), + REGULATOR_SUPPLY("vdd33a", "smsc911x.0"), +}; + static void __init igep_init(void) { + regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); /* Get IGEP2 hardware revision */ diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c index d50a562a..1b60495 100644 --- a/arch/arm/mach-omap2/board-ldp.c +++ b/arch/arm/mach-omap2/board-ldp.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include @@ -410,8 +411,14 @@ static struct mtd_partition ldp_nand_partitions[] = { }; +static struct regulator_consumer_supply dummy_supplies[] = { + REGULATOR_SUPPLY("vddvario", "smsc911x.0"), + REGULATOR_SUPPLY("vdd33a", "smsc911x.0"), +}; + static void __init omap_ldp_init(void) { + regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); ldp_init_smsc911x(); omap_i2c_init(); diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c index b90b319..49df127 100644 --- a/arch/arm/mach-omap2/board-omap3evm.c +++ b/arch/arm/mach-omap2/board-omap3evm.c @@ -623,9 +623,15 @@ static void __init omap3_evm_wl12xx_init(void) #endif } +static struct regulator_consumer_supply dummy_supplies[] = { + REGULATOR_SUPPLY("vddvario", "smsc911x.0"), + REGULATOR_SUPPLY("vdd33a", "smsc911x.0"), +}; + static void __init omap3_evm_init(void) { omap3_evm_get_revision(); + regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); if (cpu_is_omap3630()) omap3_mux_init(omap36x_board_mux, OMAP_PACKAGE_CBB); diff --git a/arch/arm/mach-omap2/board-omap3logic.c b/arch/arm/mach-omap2/board-omap3logic.c index 4a7d8c8..9b3c141 100644 --- a/arch/arm/mach-omap2/board-omap3logic.c +++ b/arch/arm/mach-omap2/board-omap3logic.c @@ -23,6 +23,7 @@ #include #include +#include #include #include @@ -188,8 +189,14 @@ static struct omap_board_mux board_mux[] __initdata = { }; #endif +static struct regulator_consumer_supply dummy_supplies[] = { + REGULATOR_SUPPLY("vddvario", "smsc911x.0"), + REGULATOR_SUPPLY("vdd33a", "smsc911x.0"), +}; + static void __init omap3logic_init(void) { + regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); omap3torpedo_fix_pbias_voltage(); omap3logic_i2c_init(); diff --git a/arch/arm/mach-omap2/board-omap3stalker.c b/arch/arm/mach-omap2/board-omap3stalker.c index de95352..4dffc95 100644 --- a/arch/arm/mach-omap2/board-omap3stalker.c +++ b/arch/arm/mach-omap2/board-omap3stalker.c @@ -24,6 +24,7 @@ #include #include +#include #include #include #include @@ -410,8 +411,14 @@ static struct omap_board_mux board_mux[] __initdata = { }; #endif +static struct regulator_consumer_supply dummy_supplies[] = { + REGULATOR_SUPPLY("vddvario", "smsc911x.0"), + REGULATOR_SUPPLY("vdd33a", "smsc911x.0"), +}; + static void __init omap3_stalker_init(void) { + regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); omap3_mux_init(board_mux, OMAP_PACKAGE_CUS); omap_board_config = omap3_stalker_config; omap_board_config_size = ARRAY_SIZE(omap3_stalker_config); diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c index 668533e..33aa391 100644 --- a/arch/arm/mach-omap2/board-overo.c +++ b/arch/arm/mach-omap2/board-overo.c @@ -498,10 +498,18 @@ static struct gpio overo_bt_gpios[] __initdata = { { OVERO_GPIO_BT_NRESET, GPIOF_OUT_INIT_HIGH, "lcd bl enable" }, }; +static struct regulator_consumer_supply dummy_supplies[] = { + REGULATOR_SUPPLY("vddvario", "smsc911x.0"), + REGULATOR_SUPPLY("vdd33a", "smsc911x.0"), + REGULATOR_SUPPLY("vddvario", "smsc911x.1"), + REGULATOR_SUPPLY("vdd33a", "smsc911x.1"), +}; + static void __init overo_init(void) { int ret; + regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); omap_hsmmc_init(mmc); overo_i2c_init(); diff --git a/arch/arm/mach-omap2/board-zoom-debugboard.c b/arch/arm/mach-omap2/board-zoom-debugboard.c index 1e8540e..f64f441 100644 --- a/arch/arm/mach-omap2/board-zoom-debugboard.c +++ b/arch/arm/mach-omap2/board-zoom-debugboard.c @@ -14,6 +14,9 @@ #include #include +#include +#include + #include #include @@ -117,11 +120,17 @@ static struct platform_device *zoom_devices[] __initdata = { &zoom_debugboard_serial_device, }; +static struct regulator_consumer_supply dummy_supplies[] = { + REGULATOR_SUPPLY("vddvario", "smsc911x.0"), + REGULATOR_SUPPLY("vdd33a", "smsc911x.0"), +}; + int __init zoom_debugboard_init(void) { if (!omap_zoom_debugboard_detect()) return 0; + regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); zoom_init_smsc911x(); zoom_init_quaduart(); return platform_add_devices(zoom_devices, ARRAY_SIZE(zoom_devices)); -- cgit v0.10.2 From b7782d3f08b69bea64ed639284b5be948f63c6df Mon Sep 17 00:00:00 2001 From: R Sricharan Date: Fri, 30 Mar 2012 14:27:43 +0530 Subject: ARM: OMAP2+: Fix omap2+ build error With CONFIG_OMAP4_ERRATA_I688 enabled, omap2+ build was broken as below: arch/arm/kernel/io.c: In function '_memcpy_toio': arch/arm/kernel/io.c:29: error: implicit declaration of function 'outer_sync' make[1]: *** [arch/arm/kernel/io.o] Error 1 This was caused by commit 9f97da78 (Disintegrate asm/system.h for ARM). Signed-off-by: R Sricharan Acked-by: Santosh Shilimkar [tony@atomide.com: updated comments] Signed-off-by: Tony Lindgren diff --git a/arch/arm/include/asm/barrier.h b/arch/arm/include/asm/barrier.h index 44f4a09..0511238 100644 --- a/arch/arm/include/asm/barrier.h +++ b/arch/arm/include/asm/barrier.h @@ -2,6 +2,7 @@ #define __ASM_BARRIER_H #ifndef __ASSEMBLY__ +#include #define nop() __asm__ __volatile__("mov\tr0,r0\t@ nop\n\t"); @@ -39,7 +40,6 @@ #ifdef CONFIG_ARCH_HAS_BARRIERS #include #elif defined(CONFIG_ARM_DMA_MEM_BUFFERABLE) || defined(CONFIG_SMP) -#include #define mb() do { dsb(); outer_sync(); } while (0) #define rmb() dsb() #define wmb() mb() -- cgit v0.10.2 From 1512f0dbfb9e355bc451fc6ded815a79d00bc6f3 Mon Sep 17 00:00:00 2001 From: Igor Grinberg Date: Mon, 26 Mar 2012 16:51:10 +0200 Subject: ARM: OMAP: fix section mismatches in usb-host.c Fix the below section mismatch warning and alike: WARNING: vmlinux.o(.text+0x281d4): Section mismatch in reference from the function setup_ehci_io_mux() to the function .init.text:omap_mux_init_signal() The function setup_ehci_io_mux() references the function __init omap_mux_init_signal(). This is often because setup_ehci_io_mux lacks a __init annotation or the annotation of omap_mux_init_signal is wrong. Signed-off-by: Igor Grinberg Reviewed-by: Shubhrajyoti D Acked-by: Felipe Balbi Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap2/usb-host.c b/arch/arm/mach-omap2/usb-host.c index f51348d..dde8a11 100644 --- a/arch/arm/mach-omap2/usb-host.c +++ b/arch/arm/mach-omap2/usb-host.c @@ -54,7 +54,7 @@ static struct omap_device_pm_latency omap_uhhtll_latency[] = { /* * setup_ehci_io_mux - initialize IO pad mux for USBHOST */ -static void setup_ehci_io_mux(const enum usbhs_omap_port_mode *port_mode) +static void __init setup_ehci_io_mux(const enum usbhs_omap_port_mode *port_mode) { switch (port_mode[0]) { case OMAP_EHCI_PORT_MODE_PHY: @@ -197,7 +197,8 @@ static void setup_ehci_io_mux(const enum usbhs_omap_port_mode *port_mode) return; } -static void setup_4430ehci_io_mux(const enum usbhs_omap_port_mode *port_mode) +static +void __init setup_4430ehci_io_mux(const enum usbhs_omap_port_mode *port_mode) { switch (port_mode[0]) { case OMAP_EHCI_PORT_MODE_PHY: @@ -315,7 +316,7 @@ static void setup_4430ehci_io_mux(const enum usbhs_omap_port_mode *port_mode) } } -static void setup_ohci_io_mux(const enum usbhs_omap_port_mode *port_mode) +static void __init setup_ohci_io_mux(const enum usbhs_omap_port_mode *port_mode) { switch (port_mode[0]) { case OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0: @@ -412,7 +413,8 @@ static void setup_ohci_io_mux(const enum usbhs_omap_port_mode *port_mode) } } -static void setup_4430ohci_io_mux(const enum usbhs_omap_port_mode *port_mode) +static +void __init setup_4430ohci_io_mux(const enum usbhs_omap_port_mode *port_mode) { switch (port_mode[0]) { case OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0: -- cgit v0.10.2 From 2def16ae6b0c77571200f18ba4be049b03d75579 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 2 Apr 2012 22:33:02 +0000 Subject: net: fix /proc/net/dev regression Commit f04565ddf52 (dev: use name hash for dev_seq_ops) added a second regression, as some devices are missing from /proc/net/dev if many devices are defined. When seq_file buffer is filled, the last ->next/show() method is canceled (pos value is reverted to value prior ->next() call) Problem is after above commit, we dont restart the lookup at right position in ->start() method. Fix this by removing the internal 'pos' pointer added in commit, since we need to use the 'loff_t *pos' provided by seq_file layer. This also reverts commit 5cac98dd0 (net: Fix corruption in /proc/*/net/dev_mcast), since its not needed anymore. Reported-by: Ben Greear Signed-off-by: Eric Dumazet Cc: Mihai Maruseac Tested-by: Ben Greear Signed-off-by: David S. Miller diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 1f77540..5cbaa20 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2604,8 +2604,6 @@ extern void net_disable_timestamp(void); extern void *dev_seq_start(struct seq_file *seq, loff_t *pos); extern void *dev_seq_next(struct seq_file *seq, void *v, loff_t *pos); extern void dev_seq_stop(struct seq_file *seq, void *v); -extern int dev_seq_open_ops(struct inode *inode, struct file *file, - const struct seq_operations *ops); #endif extern int netdev_class_create_file(struct class_attribute *class_attr); diff --git a/net/core/dev.c b/net/core/dev.c index 6c7dc9d..c25d453 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4028,54 +4028,41 @@ static int dev_ifconf(struct net *net, char __user *arg) #ifdef CONFIG_PROC_FS -#define BUCKET_SPACE (32 - NETDEV_HASHBITS) - -struct dev_iter_state { - struct seq_net_private p; - unsigned int pos; /* bucket << BUCKET_SPACE + offset */ -}; +#define BUCKET_SPACE (32 - NETDEV_HASHBITS - 1) #define get_bucket(x) ((x) >> BUCKET_SPACE) #define get_offset(x) ((x) & ((1 << BUCKET_SPACE) - 1)) #define set_bucket_offset(b, o) ((b) << BUCKET_SPACE | (o)) -static inline struct net_device *dev_from_same_bucket(struct seq_file *seq) +static inline struct net_device *dev_from_same_bucket(struct seq_file *seq, loff_t *pos) { - struct dev_iter_state *state = seq->private; struct net *net = seq_file_net(seq); struct net_device *dev; struct hlist_node *p; struct hlist_head *h; - unsigned int count, bucket, offset; + unsigned int count = 0, offset = get_offset(*pos); - bucket = get_bucket(state->pos); - offset = get_offset(state->pos); - h = &net->dev_name_head[bucket]; - count = 0; + h = &net->dev_name_head[get_bucket(*pos)]; hlist_for_each_entry_rcu(dev, p, h, name_hlist) { - if (count++ == offset) { - state->pos = set_bucket_offset(bucket, count); + if (++count == offset) return dev; - } } return NULL; } -static inline struct net_device *dev_from_new_bucket(struct seq_file *seq) +static inline struct net_device *dev_from_bucket(struct seq_file *seq, loff_t *pos) { - struct dev_iter_state *state = seq->private; struct net_device *dev; unsigned int bucket; - bucket = get_bucket(state->pos); do { - dev = dev_from_same_bucket(seq); + dev = dev_from_same_bucket(seq, pos); if (dev) return dev; - bucket++; - state->pos = set_bucket_offset(bucket, 0); + bucket = get_bucket(*pos) + 1; + *pos = set_bucket_offset(bucket, 1); } while (bucket < NETDEV_HASHENTRIES); return NULL; @@ -4088,33 +4075,20 @@ static inline struct net_device *dev_from_new_bucket(struct seq_file *seq) void *dev_seq_start(struct seq_file *seq, loff_t *pos) __acquires(RCU) { - struct dev_iter_state *state = seq->private; - rcu_read_lock(); if (!*pos) return SEQ_START_TOKEN; - /* check for end of the hash */ - if (state->pos == 0 && *pos > 1) + if (get_bucket(*pos) >= NETDEV_HASHENTRIES) return NULL; - return dev_from_new_bucket(seq); + return dev_from_bucket(seq, pos); } void *dev_seq_next(struct seq_file *seq, void *v, loff_t *pos) { - struct net_device *dev; - ++*pos; - - if (v == SEQ_START_TOKEN) - return dev_from_new_bucket(seq); - - dev = dev_from_same_bucket(seq); - if (dev) - return dev; - - return dev_from_new_bucket(seq); + return dev_from_bucket(seq, pos); } void dev_seq_stop(struct seq_file *seq, void *v) @@ -4213,13 +4187,7 @@ static const struct seq_operations dev_seq_ops = { static int dev_seq_open(struct inode *inode, struct file *file) { return seq_open_net(inode, file, &dev_seq_ops, - sizeof(struct dev_iter_state)); -} - -int dev_seq_open_ops(struct inode *inode, struct file *file, - const struct seq_operations *ops) -{ - return seq_open_net(inode, file, ops, sizeof(struct dev_iter_state)); + sizeof(struct seq_net_private)); } static const struct file_operations dev_seq_fops = { diff --git a/net/core/dev_addr_lists.c b/net/core/dev_addr_lists.c index 29c07fe..626698f 100644 --- a/net/core/dev_addr_lists.c +++ b/net/core/dev_addr_lists.c @@ -696,7 +696,8 @@ static const struct seq_operations dev_mc_seq_ops = { static int dev_mc_seq_open(struct inode *inode, struct file *file) { - return dev_seq_open_ops(inode, file, &dev_mc_seq_ops); + return seq_open_net(inode, file, &dev_mc_seq_ops, + sizeof(struct seq_net_private)); } static const struct file_operations dev_mc_seq_fops = { -- cgit v0.10.2 From e675f0cc9a872fd152edc0c77acfed19bf28b81e Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Mon, 26 Mar 2012 00:03:42 +0000 Subject: ppp: Don't stop and restart queue on every TX packet MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit For every transmitted packet, ppp_start_xmit() will stop the netdev queue and then, if appropriate, restart it. This causes the TX softirq to run, entirely gratuitously. This is "only" a waste of CPU time in the normal case, but it's actively harmful when the PPP device is a TEQL slave — the wakeup will cause the offending device to receive the next TX packet from the TEQL queue, when it *should* have gone to the next slave in the list. We end up seeing large bursts of packets on just *one* slave device, rather than using the full available bandwidth over all slaves. This patch fixes the problem by *not* unconditionally stopping the queue in ppp_start_xmit(). It adds a return value from ppp_xmit_process() which indicates whether the queue should be stopped or not. It *doesn't* remove the call to netif_wake_queue() from ppp_xmit_process(), because other code paths (especially from ppp_output_wakeup()) need it there and it's messy to push it out to the other callers to do it based on the return value. So we leave it in place — it's a no-op in the case where the queue wasn't stopped, so it's harmless in the TX path. Signed-off-by: David Woodhouse Signed-off-by: David S. Miller diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c index 159da29..33f8c51 100644 --- a/drivers/net/ppp/ppp_generic.c +++ b/drivers/net/ppp/ppp_generic.c @@ -235,7 +235,7 @@ struct ppp_net { /* Prototypes. */ static int ppp_unattached_ioctl(struct net *net, struct ppp_file *pf, struct file *file, unsigned int cmd, unsigned long arg); -static void ppp_xmit_process(struct ppp *ppp); +static int ppp_xmit_process(struct ppp *ppp); static void ppp_send_frame(struct ppp *ppp, struct sk_buff *skb); static void ppp_push(struct ppp *ppp); static void ppp_channel_push(struct channel *pch); @@ -968,9 +968,9 @@ ppp_start_xmit(struct sk_buff *skb, struct net_device *dev) proto = npindex_to_proto[npi]; put_unaligned_be16(proto, pp); - netif_stop_queue(dev); skb_queue_tail(&ppp->file.xq, skb); - ppp_xmit_process(ppp); + if (!ppp_xmit_process(ppp)) + netif_stop_queue(dev); return NETDEV_TX_OK; outf: @@ -1048,10 +1048,11 @@ static void ppp_setup(struct net_device *dev) * Called to do any work queued up on the transmit side * that can now be done. */ -static void +static int ppp_xmit_process(struct ppp *ppp) { struct sk_buff *skb; + int ret = 0; ppp_xmit_lock(ppp); if (!ppp->closing) { @@ -1061,10 +1062,13 @@ ppp_xmit_process(struct ppp *ppp) ppp_send_frame(ppp, skb); /* If there's no work left to do, tell the core net code that we can accept some more. */ - if (!ppp->xmit_pending && !skb_peek(&ppp->file.xq)) + if (!ppp->xmit_pending && !skb_peek(&ppp->file.xq)) { netif_wake_queue(ppp->dev); + ret = 1; + } } ppp_xmit_unlock(ppp); + return ret; } static inline struct sk_buff * -- cgit v0.10.2 From 2f53384424251c06038ae612e56231b96ab610ee Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 3 Apr 2012 09:37:01 +0000 Subject: tcp: allow splice() to build full TSO packets MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit vmsplice()/splice(pipe, socket) call do_tcp_sendpages() one page at a time, adding at most 4096 bytes to an skb. (assuming PAGE_SIZE=4096) The call to tcp_push() at the end of do_tcp_sendpages() forces an immediate xmit when pipe is not already filled, and tso_fragment() try to split these skb to MSS multiples. 4096 bytes are usually split in a skb with 2 MSS, and a remaining sub-mss skb (assuming MTU=1500) This makes slow start suboptimal because many small frames are sent to qdisc/driver layers instead of big ones (constrained by cwnd and packets in flight of course) In fact, applications using sendmsg() (adding an additional memory copy) instead of vmsplice()/splice()/sendfile() are a bit faster because of this anomaly, especially if serving small files in environments with large initial [c]wnd. Call tcp_push() only if MSG_MORE is not set in the flags parameter. This bit is automatically provided by splice() internals but for the last page, or on all pages if user specified SPLICE_F_MORE splice() flag. In some workloads, this can reduce number of sent logical packets by an order of magnitude, making zero-copy TCP actually faster than one-copy :) Reported-by: Tom Herbert Cc: Nandita Dukkipati Cc: Neal Cardwell Cc: Tom Herbert Cc: Yuchung Cheng Cc: H.K. Jerry Chu Cc: Maciej Żenczykowski Cc: Mahesh Bandewar Cc: Ilpo Järvinen Signed-off-by: Eric Dumazet com> Signed-off-by: David S. Miller diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index cfd7edd..2ff6f45 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -860,7 +860,7 @@ wait_for_memory: } out: - if (copied) + if (copied && !(flags & MSG_MORE)) tcp_push(sk, flags, mss_now, tp->nonagle); return copied; -- cgit v0.10.2 From 5d6bd8619db5a30668093c1b2967674645cf0736 Mon Sep 17 00:00:00 2001 From: Fernando Luis Vazquez Cao Date: Tue, 3 Apr 2012 08:41:40 +0000 Subject: TCP: update ip_local_port_range documentation The explanation of ip_local_port_range in Documentation/networking/ip-sysctl.txt contains several factual errors: - The default value of ip_local_port_range does not depend on the amount of memory available in the system. - tcp_tw_recycle is not enabled by default. - 1024-4999 is not the default value. - Etc. Clean up the mess. Signed-off-by: Fernando Luis Vazquez Cao Signed-off-by: David S. Miller diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index ad3e80e..bd80ba5 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -604,15 +604,8 @@ IP Variables: ip_local_port_range - 2 INTEGERS Defines the local port range that is used by TCP and UDP to choose the local port. The first number is the first, the - second the last local port number. Default value depends on - amount of memory available on the system: - > 128Mb 32768-61000 - < 128Mb 1024-4999 or even less. - This number defines number of active connections, which this - system can issue simultaneously to systems not supporting - TCP extensions (timestamps). With tcp_tw_recycle enabled - (i.e. by default) range 1024-4999 is enough to issue up to - 2000 connections per second to systems supporting timestamps. + second the last local port number. The default values are + 32768 and 61000 respectively. ip_local_reserved_ports - list of comma separated ranges Specify the ports which are reserved for known third-party -- cgit v0.10.2 From f03fb3f455c6c3a3dfcef6c7f2dcab104c813f4b Mon Sep 17 00:00:00 2001 From: Jan Seiffert Date: Fri, 30 Mar 2012 05:08:19 +0000 Subject: bpf jit: Make the filter.c::__load_pointer helper non-static for the jits The function is renamed to make it a little more clear what it does. It is not added to any .h because it is not for general consumption, only for bpf internal use (and so by the jits). Signed-of-by: Jan Seiffert Acked-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/core/filter.c b/net/core/filter.c index cf4989a..6f755cc 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -39,8 +39,11 @@ #include #include -/* No hurry in this branch */ -static void *__load_pointer(const struct sk_buff *skb, int k, unsigned int size) +/* No hurry in this branch + * + * Exported for the bpf jit load helper. + */ +void *bpf_internal_load_pointer_neg_helper(const struct sk_buff *skb, int k, unsigned int size) { u8 *ptr = NULL; @@ -59,7 +62,7 @@ static inline void *load_pointer(const struct sk_buff *skb, int k, { if (k >= 0) return skb_header_pointer(skb, k, size, buffer); - return __load_pointer(skb, k, size); + return bpf_internal_load_pointer_neg_helper(skb, k, size); } /** -- cgit v0.10.2 From a998d4342337c82dacdc0897d30a9364de1576a1 Mon Sep 17 00:00:00 2001 From: Jan Seiffert Date: Fri, 30 Mar 2012 05:24:05 +0000 Subject: bpf jit: Let the x86 jit handle negative offsets Now the helper function from filter.c for negative offsets is exported, it can be used it in the jit to handle negative offsets. First modify the asm load helper functions to handle: - know positive offsets - know negative offsets - any offset then the compiler can be modified to explicitly use these helper when appropriate. This fixes the case of a negative X register and allows to lift the restriction that bpf programs with negative offsets can't be jited. Signed-of-by: Jan Seiffert Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/arch/x86/net/bpf_jit.S b/arch/x86/net/bpf_jit.S index 6687022..877b9a1 100644 --- a/arch/x86/net/bpf_jit.S +++ b/arch/x86/net/bpf_jit.S @@ -18,17 +18,17 @@ * r9d : hlen = skb->len - skb->data_len */ #define SKBDATA %r8 - -sk_load_word_ind: - .globl sk_load_word_ind - - add %ebx,%esi /* offset += X */ -# test %esi,%esi /* if (offset < 0) goto bpf_error; */ - js bpf_error +#define SKF_MAX_NEG_OFF $(-0x200000) /* SKF_LL_OFF from filter.h */ sk_load_word: .globl sk_load_word + test %esi,%esi + js bpf_slow_path_word_neg + +sk_load_word_positive_offset: + .globl sk_load_word_positive_offset + mov %r9d,%eax # hlen sub %esi,%eax # hlen - offset cmp $3,%eax @@ -37,16 +37,15 @@ sk_load_word: bswap %eax /* ntohl() */ ret - -sk_load_half_ind: - .globl sk_load_half_ind - - add %ebx,%esi /* offset += X */ - js bpf_error - sk_load_half: .globl sk_load_half + test %esi,%esi + js bpf_slow_path_half_neg + +sk_load_half_positive_offset: + .globl sk_load_half_positive_offset + mov %r9d,%eax sub %esi,%eax # hlen - offset cmp $1,%eax @@ -55,14 +54,15 @@ sk_load_half: rol $8,%ax # ntohs() ret -sk_load_byte_ind: - .globl sk_load_byte_ind - add %ebx,%esi /* offset += X */ - js bpf_error - sk_load_byte: .globl sk_load_byte + test %esi,%esi + js bpf_slow_path_byte_neg + +sk_load_byte_positive_offset: + .globl sk_load_byte_positive_offset + cmp %esi,%r9d /* if (offset >= hlen) goto bpf_slow_path_byte */ jle bpf_slow_path_byte movzbl (SKBDATA,%rsi),%eax @@ -73,25 +73,21 @@ sk_load_byte: * * Implements BPF_S_LDX_B_MSH : ldxb 4*([offset]&0xf) * Must preserve A accumulator (%eax) - * Inputs : %esi is the offset value, already known positive + * Inputs : %esi is the offset value */ -ENTRY(sk_load_byte_msh) - CFI_STARTPROC +sk_load_byte_msh: + .globl sk_load_byte_msh + test %esi,%esi + js bpf_slow_path_byte_msh_neg + +sk_load_byte_msh_positive_offset: + .globl sk_load_byte_msh_positive_offset cmp %esi,%r9d /* if (offset >= hlen) goto bpf_slow_path_byte_msh */ jle bpf_slow_path_byte_msh movzbl (SKBDATA,%rsi),%ebx and $15,%bl shl $2,%bl ret - CFI_ENDPROC -ENDPROC(sk_load_byte_msh) - -bpf_error: -# force a return 0 from jit handler - xor %eax,%eax - mov -8(%rbp),%rbx - leaveq - ret /* rsi contains offset and can be scratched */ #define bpf_slow_path_common(LEN) \ @@ -138,3 +134,67 @@ bpf_slow_path_byte_msh: shl $2,%al xchg %eax,%ebx ret + +#define sk_negative_common(SIZE) \ + push %rdi; /* save skb */ \ + push %r9; \ + push SKBDATA; \ +/* rsi already has offset */ \ + mov $SIZE,%ecx; /* size */ \ + call bpf_internal_load_pointer_neg_helper; \ + test %rax,%rax; \ + pop SKBDATA; \ + pop %r9; \ + pop %rdi; \ + jz bpf_error + + +bpf_slow_path_word_neg: + cmp SKF_MAX_NEG_OFF, %esi /* test range */ + jl bpf_error /* offset lower -> error */ +sk_load_word_negative_offset: + .globl sk_load_word_negative_offset + sk_negative_common(4) + mov (%rax), %eax + bswap %eax + ret + +bpf_slow_path_half_neg: + cmp SKF_MAX_NEG_OFF, %esi + jl bpf_error +sk_load_half_negative_offset: + .globl sk_load_half_negative_offset + sk_negative_common(2) + mov (%rax),%ax + rol $8,%ax + movzwl %ax,%eax + ret + +bpf_slow_path_byte_neg: + cmp SKF_MAX_NEG_OFF, %esi + jl bpf_error +sk_load_byte_negative_offset: + .globl sk_load_byte_negative_offset + sk_negative_common(1) + movzbl (%rax), %eax + ret + +bpf_slow_path_byte_msh_neg: + cmp SKF_MAX_NEG_OFF, %esi + jl bpf_error +sk_load_byte_msh_negative_offset: + .globl sk_load_byte_msh_negative_offset + xchg %eax,%ebx /* dont lose A , X is about to be scratched */ + sk_negative_common(1) + movzbl (%rax),%eax + and $15,%al + shl $2,%al + xchg %eax,%ebx + ret + +bpf_error: +# force a return 0 from jit handler + xor %eax,%eax + mov -8(%rbp),%rbx + leaveq + ret diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c index 5a5b6e4..0597f95 100644 --- a/arch/x86/net/bpf_jit_comp.c +++ b/arch/x86/net/bpf_jit_comp.c @@ -30,7 +30,10 @@ int bpf_jit_enable __read_mostly; * assembly code in arch/x86/net/bpf_jit.S */ extern u8 sk_load_word[], sk_load_half[], sk_load_byte[], sk_load_byte_msh[]; -extern u8 sk_load_word_ind[], sk_load_half_ind[], sk_load_byte_ind[]; +extern u8 sk_load_word_positive_offset[], sk_load_half_positive_offset[]; +extern u8 sk_load_byte_positive_offset[], sk_load_byte_msh_positive_offset[]; +extern u8 sk_load_word_negative_offset[], sk_load_half_negative_offset[]; +extern u8 sk_load_byte_negative_offset[], sk_load_byte_msh_negative_offset[]; static inline u8 *emit_code(u8 *ptr, u32 bytes, unsigned int len) { @@ -117,6 +120,8 @@ static inline void bpf_flush_icache(void *start, void *end) set_fs(old_fs); } +#define CHOOSE_LOAD_FUNC(K, func) \ + ((int)K < 0 ? ((int)K >= SKF_LL_OFF ? func##_negative_offset : func) : func##_positive_offset) void bpf_jit_compile(struct sk_filter *fp) { @@ -473,44 +478,46 @@ void bpf_jit_compile(struct sk_filter *fp) #endif break; case BPF_S_LD_W_ABS: - func = sk_load_word; + func = CHOOSE_LOAD_FUNC(K, sk_load_word); common_load: seen |= SEEN_DATAREF; - if ((int)K < 0) { - /* Abort the JIT because __load_pointer() is needed. */ - goto out; - } t_offset = func - (image + addrs[i]); EMIT1_off32(0xbe, K); /* mov imm32,%esi */ EMIT1_off32(0xe8, t_offset); /* call */ break; case BPF_S_LD_H_ABS: - func = sk_load_half; + func = CHOOSE_LOAD_FUNC(K, sk_load_half); goto common_load; case BPF_S_LD_B_ABS: - func = sk_load_byte; + func = CHOOSE_LOAD_FUNC(K, sk_load_byte); goto common_load; case BPF_S_LDX_B_MSH: - if ((int)K < 0) { - /* Abort the JIT because __load_pointer() is needed. */ - goto out; - } + func = CHOOSE_LOAD_FUNC(K, sk_load_byte_msh); seen |= SEEN_DATAREF | SEEN_XREG; - t_offset = sk_load_byte_msh - (image + addrs[i]); + t_offset = func - (image + addrs[i]); EMIT1_off32(0xbe, K); /* mov imm32,%esi */ EMIT1_off32(0xe8, t_offset); /* call sk_load_byte_msh */ break; case BPF_S_LD_W_IND: - func = sk_load_word_ind; + func = sk_load_word; common_load_ind: seen |= SEEN_DATAREF | SEEN_XREG; t_offset = func - (image + addrs[i]); - EMIT1_off32(0xbe, K); /* mov imm32,%esi */ + if (K) { + if (is_imm8(K)) { + EMIT3(0x8d, 0x73, K); /* lea imm8(%rbx), %esi */ + } else { + EMIT2(0x8d, 0xb3); /* lea imm32(%rbx),%esi */ + EMIT(K, 4); + } + } else { + EMIT2(0x89,0xde); /* mov %ebx,%esi */ + } EMIT1_off32(0xe8, t_offset); /* call sk_load_xxx_ind */ break; case BPF_S_LD_H_IND: - func = sk_load_half_ind; + func = sk_load_half; goto common_load_ind; case BPF_S_LD_B_IND: - func = sk_load_byte_ind; + func = sk_load_byte; goto common_load_ind; case BPF_S_JMP_JA: t_offset = addrs[i + K] - addrs[i]; -- cgit v0.10.2 From aacc1bea190d731755a65cb8ec31dd756f4e263e Mon Sep 17 00:00:00 2001 From: "Multanen, Eric W" Date: Wed, 28 Mar 2012 07:49:09 +0000 Subject: ixgbe: driver fix for link flap Fix up code so that changes in DCB settings are detected only when ixgbe_dcbnl_set_all is called. Previously, a series of 'change' commands followed by a call to ixgbe_dcbnl_set_all() would always be handled as a HW change - even if the net change was zero. This patch checks for this case of no actual change and skips going through the HW set process. Without this fix, the link could reset and result in a link flap. The core change in this patch is to check for changes in the ixgbe_copy_dcb_cfg() routine - and return a bitmask of detected changes. The other places where changes were detected previously can be removed. Signed-off-by: Eric Multanen Tested-by: Ross Brattain Signed-off-by: Jeff Kirsher diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c index dde65f9..652e4b0 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c @@ -44,62 +44,94 @@ #define DCB_NO_HW_CHG 1 /* DCB configuration did not change */ #define DCB_HW_CHG 2 /* DCB configuration changed, no reset */ -int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config *src_dcb_cfg, - struct ixgbe_dcb_config *dst_dcb_cfg, int tc_max) +int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config *scfg, + struct ixgbe_dcb_config *dcfg, int tc_max) { - struct tc_configuration *src_tc_cfg = NULL; - struct tc_configuration *dst_tc_cfg = NULL; - int i; + struct tc_configuration *src = NULL; + struct tc_configuration *dst = NULL; + int i, j; + int tx = DCB_TX_CONFIG; + int rx = DCB_RX_CONFIG; + int changes = 0; - if (!src_dcb_cfg || !dst_dcb_cfg) - return -EINVAL; + if (!scfg || !dcfg) + return changes; for (i = DCB_PG_ATTR_TC_0; i < tc_max + DCB_PG_ATTR_TC_0; i++) { - src_tc_cfg = &src_dcb_cfg->tc_config[i - DCB_PG_ATTR_TC_0]; - dst_tc_cfg = &dst_dcb_cfg->tc_config[i - DCB_PG_ATTR_TC_0]; + src = &scfg->tc_config[i - DCB_PG_ATTR_TC_0]; + dst = &dcfg->tc_config[i - DCB_PG_ATTR_TC_0]; - dst_tc_cfg->path[DCB_TX_CONFIG].prio_type = - src_tc_cfg->path[DCB_TX_CONFIG].prio_type; + if (dst->path[tx].prio_type != src->path[tx].prio_type) { + dst->path[tx].prio_type = src->path[tx].prio_type; + changes |= BIT_PG_TX; + } - dst_tc_cfg->path[DCB_TX_CONFIG].bwg_id = - src_tc_cfg->path[DCB_TX_CONFIG].bwg_id; + if (dst->path[tx].bwg_id != src->path[tx].bwg_id) { + dst->path[tx].bwg_id = src->path[tx].bwg_id; + changes |= BIT_PG_TX; + } - dst_tc_cfg->path[DCB_TX_CONFIG].bwg_percent = - src_tc_cfg->path[DCB_TX_CONFIG].bwg_percent; + if (dst->path[tx].bwg_percent != src->path[tx].bwg_percent) { + dst->path[tx].bwg_percent = src->path[tx].bwg_percent; + changes |= BIT_PG_TX; + } - dst_tc_cfg->path[DCB_TX_CONFIG].up_to_tc_bitmap = - src_tc_cfg->path[DCB_TX_CONFIG].up_to_tc_bitmap; + if (dst->path[tx].up_to_tc_bitmap != + src->path[tx].up_to_tc_bitmap) { + dst->path[tx].up_to_tc_bitmap = + src->path[tx].up_to_tc_bitmap; + changes |= (BIT_PG_TX | BIT_PFC | BIT_APP_UPCHG); + } - dst_tc_cfg->path[DCB_RX_CONFIG].prio_type = - src_tc_cfg->path[DCB_RX_CONFIG].prio_type; + if (dst->path[rx].prio_type != src->path[rx].prio_type) { + dst->path[rx].prio_type = src->path[rx].prio_type; + changes |= BIT_PG_RX; + } - dst_tc_cfg->path[DCB_RX_CONFIG].bwg_id = - src_tc_cfg->path[DCB_RX_CONFIG].bwg_id; + if (dst->path[rx].bwg_id != src->path[rx].bwg_id) { + dst->path[rx].bwg_id = src->path[rx].bwg_id; + changes |= BIT_PG_RX; + } - dst_tc_cfg->path[DCB_RX_CONFIG].bwg_percent = - src_tc_cfg->path[DCB_RX_CONFIG].bwg_percent; + if (dst->path[rx].bwg_percent != src->path[rx].bwg_percent) { + dst->path[rx].bwg_percent = src->path[rx].bwg_percent; + changes |= BIT_PG_RX; + } - dst_tc_cfg->path[DCB_RX_CONFIG].up_to_tc_bitmap = - src_tc_cfg->path[DCB_RX_CONFIG].up_to_tc_bitmap; + if (dst->path[rx].up_to_tc_bitmap != + src->path[rx].up_to_tc_bitmap) { + dst->path[rx].up_to_tc_bitmap = + src->path[rx].up_to_tc_bitmap; + changes |= (BIT_PG_RX | BIT_PFC | BIT_APP_UPCHG); + } } for (i = DCB_PG_ATTR_BW_ID_0; i < DCB_PG_ATTR_BW_ID_MAX; i++) { - dst_dcb_cfg->bw_percentage[DCB_TX_CONFIG] - [i-DCB_PG_ATTR_BW_ID_0] = src_dcb_cfg->bw_percentage - [DCB_TX_CONFIG][i-DCB_PG_ATTR_BW_ID_0]; - dst_dcb_cfg->bw_percentage[DCB_RX_CONFIG] - [i-DCB_PG_ATTR_BW_ID_0] = src_dcb_cfg->bw_percentage - [DCB_RX_CONFIG][i-DCB_PG_ATTR_BW_ID_0]; + j = i - DCB_PG_ATTR_BW_ID_0; + if (dcfg->bw_percentage[tx][j] != scfg->bw_percentage[tx][j]) { + dcfg->bw_percentage[tx][j] = scfg->bw_percentage[tx][j]; + changes |= BIT_PG_TX; + } + if (dcfg->bw_percentage[rx][j] != scfg->bw_percentage[rx][j]) { + dcfg->bw_percentage[rx][j] = scfg->bw_percentage[rx][j]; + changes |= BIT_PG_RX; + } } for (i = DCB_PFC_UP_ATTR_0; i < DCB_PFC_UP_ATTR_MAX; i++) { - dst_dcb_cfg->tc_config[i - DCB_PFC_UP_ATTR_0].dcb_pfc = - src_dcb_cfg->tc_config[i - DCB_PFC_UP_ATTR_0].dcb_pfc; + j = i - DCB_PFC_UP_ATTR_0; + if (dcfg->tc_config[j].dcb_pfc != scfg->tc_config[j].dcb_pfc) { + dcfg->tc_config[j].dcb_pfc = scfg->tc_config[j].dcb_pfc; + changes |= BIT_PFC; + } } - dst_dcb_cfg->pfc_mode_enable = src_dcb_cfg->pfc_mode_enable; + if (dcfg->pfc_mode_enable != scfg->pfc_mode_enable) { + dcfg->pfc_mode_enable = scfg->pfc_mode_enable; + changes |= BIT_PFC; + } - return 0; + return changes; } static u8 ixgbe_dcbnl_get_state(struct net_device *netdev) @@ -179,20 +211,6 @@ static void ixgbe_dcbnl_set_pg_tc_cfg_tx(struct net_device *netdev, int tc, if (up_map != DCB_ATTR_VALUE_UNDEFINED) adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap = up_map; - - if ((adapter->temp_dcb_cfg.tc_config[tc].path[0].prio_type != - adapter->dcb_cfg.tc_config[tc].path[0].prio_type) || - (adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_id != - adapter->dcb_cfg.tc_config[tc].path[0].bwg_id) || - (adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent != - adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent) || - (adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap != - adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap)) - adapter->dcb_set_bitmap |= BIT_PG_TX; - - if (adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap != - adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap) - adapter->dcb_set_bitmap |= BIT_PFC | BIT_APP_UPCHG; } static void ixgbe_dcbnl_set_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id, @@ -201,10 +219,6 @@ static void ixgbe_dcbnl_set_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id, struct ixgbe_adapter *adapter = netdev_priv(netdev); adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] = bw_pct; - - if (adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] != - adapter->dcb_cfg.bw_percentage[0][bwg_id]) - adapter->dcb_set_bitmap |= BIT_PG_TX; } static void ixgbe_dcbnl_set_pg_tc_cfg_rx(struct net_device *netdev, int tc, @@ -223,20 +237,6 @@ static void ixgbe_dcbnl_set_pg_tc_cfg_rx(struct net_device *netdev, int tc, if (up_map != DCB_ATTR_VALUE_UNDEFINED) adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap = up_map; - - if ((adapter->temp_dcb_cfg.tc_config[tc].path[1].prio_type != - adapter->dcb_cfg.tc_config[tc].path[1].prio_type) || - (adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_id != - adapter->dcb_cfg.tc_config[tc].path[1].bwg_id) || - (adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent != - adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent) || - (adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap != - adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap)) - adapter->dcb_set_bitmap |= BIT_PG_RX; - - if (adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap != - adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap) - adapter->dcb_set_bitmap |= BIT_PFC; } static void ixgbe_dcbnl_set_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id, @@ -245,10 +245,6 @@ static void ixgbe_dcbnl_set_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id, struct ixgbe_adapter *adapter = netdev_priv(netdev); adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] = bw_pct; - - if (adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] != - adapter->dcb_cfg.bw_percentage[1][bwg_id]) - adapter->dcb_set_bitmap |= BIT_PG_RX; } static void ixgbe_dcbnl_get_pg_tc_cfg_tx(struct net_device *netdev, int tc, @@ -298,10 +294,8 @@ static void ixgbe_dcbnl_set_pfc_cfg(struct net_device *netdev, int priority, adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc = setting; if (adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc != - adapter->dcb_cfg.tc_config[priority].dcb_pfc) { - adapter->dcb_set_bitmap |= BIT_PFC; + adapter->dcb_cfg.tc_config[priority].dcb_pfc) adapter->temp_dcb_cfg.pfc_mode_enable = true; - } } static void ixgbe_dcbnl_get_pfc_cfg(struct net_device *netdev, int priority, @@ -336,7 +330,8 @@ static void ixgbe_dcbnl_devreset(struct net_device *dev) static u8 ixgbe_dcbnl_set_all(struct net_device *netdev) { struct ixgbe_adapter *adapter = netdev_priv(netdev); - int ret, i; + int ret = DCB_NO_HW_CHG; + int i; #ifdef IXGBE_FCOE struct dcb_app app = { .selector = DCB_APP_IDTYPE_ETHTYPE, @@ -355,12 +350,13 @@ static u8 ixgbe_dcbnl_set_all(struct net_device *netdev) /* Fail command if not in CEE mode */ if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE)) - return 1; + return ret; - ret = ixgbe_copy_dcb_cfg(&adapter->temp_dcb_cfg, &adapter->dcb_cfg, - MAX_TRAFFIC_CLASS); - if (ret) - return DCB_NO_HW_CHG; + adapter->dcb_set_bitmap |= ixgbe_copy_dcb_cfg(&adapter->temp_dcb_cfg, + &adapter->dcb_cfg, + MAX_TRAFFIC_CLASS); + if (!adapter->dcb_set_bitmap) + return ret; if (adapter->dcb_cfg.pfc_mode_enable) { switch (adapter->hw.mac.type) { @@ -420,6 +416,8 @@ static u8 ixgbe_dcbnl_set_all(struct net_device *netdev) for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) netdev_set_prio_tc_map(netdev, i, prio_tc[i]); + + ret = DCB_HW_CHG_RST; } if (adapter->dcb_set_bitmap & BIT_PFC) { @@ -430,7 +428,8 @@ static u8 ixgbe_dcbnl_set_all(struct net_device *netdev) DCB_TX_CONFIG, prio_tc); ixgbe_dcb_unpack_pfc(&adapter->dcb_cfg, &pfc_en); ixgbe_dcb_hw_pfc_config(&adapter->hw, pfc_en, prio_tc); - ret = DCB_HW_CHG; + if (ret != DCB_HW_CHG_RST) + ret = DCB_HW_CHG; } if (adapter->dcb_cfg.pfc_mode_enable) @@ -531,9 +530,6 @@ static void ixgbe_dcbnl_setpfcstate(struct net_device *netdev, u8 state) struct ixgbe_adapter *adapter = netdev_priv(netdev); adapter->temp_dcb_cfg.pfc_mode_enable = state; - if (adapter->temp_dcb_cfg.pfc_mode_enable != - adapter->dcb_cfg.pfc_mode_enable) - adapter->dcb_set_bitmap |= BIT_PFC; } /** -- cgit v0.10.2 From bb9e44d0d0f45da356c39e485edacff6e14ba961 Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Wed, 21 Mar 2012 00:39:12 +0000 Subject: e1000e: prevent oops when adapter is being closed and reset simultaneously When the adapter is closed while it is simultaneously going through a reset, it can cause a null-pointer dereference when the two different code paths simultaneously cleanup up the Tx/Rx resources. Signed-off-by: Bruce Allan Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher diff --git a/drivers/net/ethernet/intel/e1000e/e1000.h b/drivers/net/ethernet/intel/e1000e/e1000.h index 86cdd47..b83897f 100644 --- a/drivers/net/ethernet/intel/e1000e/e1000.h +++ b/drivers/net/ethernet/intel/e1000e/e1000.h @@ -161,6 +161,12 @@ struct e1000_info; /* Time to wait before putting the device into D3 if there's no link (in ms). */ #define LINK_TIMEOUT 100 +/* + * Count for polling __E1000_RESET condition every 10-20msec. + * Experimentation has shown the reset can take approximately 210msec. + */ +#define E1000_CHECK_RESET_COUNT 25 + #define DEFAULT_RDTR 0 #define DEFAULT_RADV 8 #define BURST_RDTR 0x20 diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index 2c38a65..6878601 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -3968,6 +3968,10 @@ static int e1000_close(struct net_device *netdev) { struct e1000_adapter *adapter = netdev_priv(netdev); struct pci_dev *pdev = adapter->pdev; + int count = E1000_CHECK_RESET_COUNT; + + while (test_bit(__E1000_RESETTING, &adapter->state) && count--) + usleep_range(10000, 20000); WARN_ON(test_bit(__E1000_RESETTING, &adapter->state)); @@ -5472,6 +5476,11 @@ static int __e1000_shutdown(struct pci_dev *pdev, bool *enable_wake, netif_device_detach(netdev); if (netif_running(netdev)) { + int count = E1000_CHECK_RESET_COUNT; + + while (test_bit(__E1000_RESETTING, &adapter->state) && count--) + usleep_range(10000, 20000); + WARN_ON(test_bit(__E1000_RESETTING, &adapter->state)); e1000e_down(adapter); e1000_free_irq(adapter); -- cgit v0.10.2 From bf03085f85112eac2d19036ea3003071220285bb Mon Sep 17 00:00:00 2001 From: Matthew Vick Date: Fri, 16 Mar 2012 09:03:00 +0000 Subject: e1000e: Guarantee descriptor writeback flush success. In rare circumstances, a descriptor writeback flush may not work if it arrives on a specific clock cycle as a writeback request is going out. Signed-off-by: Matthew Vick Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index 6878601..19ab215 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -1059,6 +1059,13 @@ static void e1000_print_hw_hang(struct work_struct *work) ew32(TIDV, adapter->tx_int_delay | E1000_TIDV_FPD); /* execute the writes immediately */ e1e_flush(); + /* + * Due to rare timing issues, write to TIDV again to ensure + * the write is successful + */ + ew32(TIDV, adapter->tx_int_delay | E1000_TIDV_FPD); + /* execute the writes immediately */ + e1e_flush(); adapter->tx_hang_recheck = true; return; } @@ -3616,6 +3623,16 @@ static void e1000e_flush_descriptors(struct e1000_adapter *adapter) /* execute the writes immediately */ e1e_flush(); + + /* + * due to rare timing issues, write to TIDV/RDTR again to ensure the + * write is successful + */ + ew32(TIDV, adapter->tx_int_delay | E1000_TIDV_FPD); + ew32(RDTR, adapter->rx_int_delay | E1000_RDTR_FPD); + + /* execute the writes immediately */ + e1e_flush(); } static void e1000e_update_stats(struct e1000_adapter *adapter); -- cgit v0.10.2 From b3300146aa8efc5d3937fd33f3cfdc580a3843bc Mon Sep 17 00:00:00 2001 From: Srinivas Kandagatla Date: Mon, 2 Apr 2012 00:02:09 +0000 Subject: phy:icplus:fix Auto Power Saving in ip101a_config_init. This patch fixes Auto Power Saving configuration in ip101a_config_init which was broken as there is no phy register write followed after setting IP101A_APS_ON flag. This patch also fixes the return value of ip101a_config_init. Without this patch ip101a_config_init returns 2 which is not an error accroding to IS_ERR and the mac driver will continue accessing 2 as valid pointer to phy_dev resulting in memory fault. Signed-off-by: Srinivas Kandagatla Signed-off-by: David S. Miller diff --git a/drivers/net/phy/icplus.c b/drivers/net/phy/icplus.c index 0856e1b..f08c85a 100644 --- a/drivers/net/phy/icplus.c +++ b/drivers/net/phy/icplus.c @@ -162,7 +162,8 @@ static int ip101a_g_config_init(struct phy_device *phydev) /* Enable Auto Power Saving mode */ c = phy_read(phydev, IP10XX_SPEC_CTRL_STATUS); c |= IP101A_G_APS_ON; - return c; + + return phy_write(phydev, IP10XX_SPEC_CTRL_STATUS, c); } static int ip175c_read_status(struct phy_device *phydev) -- cgit v0.10.2 From f2ed5ee1b050495be49e5a0d5df152663558ef08 Mon Sep 17 00:00:00 2001 From: Yuval Mintz Date: Tue, 3 Apr 2012 00:07:11 +0000 Subject: bnx2x: correction to firmware interface Commit 621b4d6 updated the bnx2x driver to a new FW version, but lacked a commit to a header file with changes to the firmware's interface. The missing interface change causes iscsi and fcoe to misbehave with the updated firmware. Signed-off-by: Yuval Mintz Signed-off-by: Dmitry Kravkov Signed-off-by: Eilon Greenstein CC: Michael Chan CC: Bhanu Prakash Gollapudi Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_fw_defs.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_fw_defs.h index cd6dfa9..b9b2633 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_fw_defs.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_fw_defs.h @@ -25,31 +25,31 @@ (IRO[149].base + ((funcId) * IRO[149].m1)) #define CSTORM_IGU_MODE_OFFSET (IRO[157].base) #define CSTORM_ISCSI_CQ_SIZE_OFFSET(pfId) \ - (IRO[315].base + ((pfId) * IRO[315].m1)) -#define CSTORM_ISCSI_CQ_SQN_SIZE_OFFSET(pfId) \ (IRO[316].base + ((pfId) * IRO[316].m1)) +#define CSTORM_ISCSI_CQ_SQN_SIZE_OFFSET(pfId) \ + (IRO[317].base + ((pfId) * IRO[317].m1)) #define CSTORM_ISCSI_EQ_CONS_OFFSET(pfId, iscsiEqId) \ - (IRO[308].base + ((pfId) * IRO[308].m1) + ((iscsiEqId) * IRO[308].m2)) + (IRO[309].base + ((pfId) * IRO[309].m1) + ((iscsiEqId) * IRO[309].m2)) #define CSTORM_ISCSI_EQ_NEXT_EQE_ADDR_OFFSET(pfId, iscsiEqId) \ - (IRO[310].base + ((pfId) * IRO[310].m1) + ((iscsiEqId) * IRO[310].m2)) + (IRO[311].base + ((pfId) * IRO[311].m1) + ((iscsiEqId) * IRO[311].m2)) #define CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_OFFSET(pfId, iscsiEqId) \ - (IRO[309].base + ((pfId) * IRO[309].m1) + ((iscsiEqId) * IRO[309].m2)) + (IRO[310].base + ((pfId) * IRO[310].m1) + ((iscsiEqId) * IRO[310].m2)) #define CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_VALID_OFFSET(pfId, iscsiEqId) \ - (IRO[311].base + ((pfId) * IRO[311].m1) + ((iscsiEqId) * IRO[311].m2)) + (IRO[312].base + ((pfId) * IRO[312].m1) + ((iscsiEqId) * IRO[312].m2)) #define CSTORM_ISCSI_EQ_PROD_OFFSET(pfId, iscsiEqId) \ - (IRO[307].base + ((pfId) * IRO[307].m1) + ((iscsiEqId) * IRO[307].m2)) + (IRO[308].base + ((pfId) * IRO[308].m1) + ((iscsiEqId) * IRO[308].m2)) #define CSTORM_ISCSI_EQ_SB_INDEX_OFFSET(pfId, iscsiEqId) \ - (IRO[313].base + ((pfId) * IRO[313].m1) + ((iscsiEqId) * IRO[313].m2)) + (IRO[314].base + ((pfId) * IRO[314].m1) + ((iscsiEqId) * IRO[314].m2)) #define CSTORM_ISCSI_EQ_SB_NUM_OFFSET(pfId, iscsiEqId) \ - (IRO[312].base + ((pfId) * IRO[312].m1) + ((iscsiEqId) * IRO[312].m2)) + (IRO[313].base + ((pfId) * IRO[313].m1) + ((iscsiEqId) * IRO[313].m2)) #define CSTORM_ISCSI_HQ_SIZE_OFFSET(pfId) \ - (IRO[314].base + ((pfId) * IRO[314].m1)) + (IRO[315].base + ((pfId) * IRO[315].m1)) #define CSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfId) \ - (IRO[306].base + ((pfId) * IRO[306].m1)) + (IRO[307].base + ((pfId) * IRO[307].m1)) #define CSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfId) \ - (IRO[305].base + ((pfId) * IRO[305].m1)) + (IRO[306].base + ((pfId) * IRO[306].m1)) #define CSTORM_ISCSI_PAGE_SIZE_OFFSET(pfId) \ - (IRO[304].base + ((pfId) * IRO[304].m1)) + (IRO[305].base + ((pfId) * IRO[305].m1)) #define CSTORM_RECORD_SLOW_PATH_OFFSET(funcId) \ (IRO[151].base + ((funcId) * IRO[151].m1)) #define CSTORM_SP_STATUS_BLOCK_DATA_OFFSET(pfId) \ @@ -96,37 +96,37 @@ #define TSTORM_FUNC_EN_OFFSET(funcId) \ (IRO[103].base + ((funcId) * IRO[103].m1)) #define TSTORM_ISCSI_ERROR_BITMAP_OFFSET(pfId) \ - (IRO[271].base + ((pfId) * IRO[271].m1)) -#define TSTORM_ISCSI_L2_ISCSI_OOO_CID_TABLE_OFFSET(pfId) \ (IRO[272].base + ((pfId) * IRO[272].m1)) -#define TSTORM_ISCSI_L2_ISCSI_OOO_CLIENT_ID_TABLE_OFFSET(pfId) \ +#define TSTORM_ISCSI_L2_ISCSI_OOO_CID_TABLE_OFFSET(pfId) \ (IRO[273].base + ((pfId) * IRO[273].m1)) -#define TSTORM_ISCSI_L2_ISCSI_OOO_PROD_OFFSET(pfId) \ +#define TSTORM_ISCSI_L2_ISCSI_OOO_CLIENT_ID_TABLE_OFFSET(pfId) \ (IRO[274].base + ((pfId) * IRO[274].m1)) +#define TSTORM_ISCSI_L2_ISCSI_OOO_PROD_OFFSET(pfId) \ + (IRO[275].base + ((pfId) * IRO[275].m1)) #define TSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfId) \ - (IRO[270].base + ((pfId) * IRO[270].m1)) + (IRO[271].base + ((pfId) * IRO[271].m1)) #define TSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfId) \ - (IRO[269].base + ((pfId) * IRO[269].m1)) + (IRO[270].base + ((pfId) * IRO[270].m1)) #define TSTORM_ISCSI_PAGE_SIZE_OFFSET(pfId) \ - (IRO[268].base + ((pfId) * IRO[268].m1)) + (IRO[269].base + ((pfId) * IRO[269].m1)) #define TSTORM_ISCSI_RQ_SIZE_OFFSET(pfId) \ - (IRO[267].base + ((pfId) * IRO[267].m1)) + (IRO[268].base + ((pfId) * IRO[268].m1)) #define TSTORM_ISCSI_TCP_LOCAL_ADV_WND_OFFSET(pfId) \ - (IRO[276].base + ((pfId) * IRO[276].m1)) + (IRO[277].base + ((pfId) * IRO[277].m1)) #define TSTORM_ISCSI_TCP_VARS_FLAGS_OFFSET(pfId) \ - (IRO[263].base + ((pfId) * IRO[263].m1)) -#define TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(pfId) \ (IRO[264].base + ((pfId) * IRO[264].m1)) -#define TSTORM_ISCSI_TCP_VARS_MID_LOCAL_MAC_ADDR_OFFSET(pfId) \ +#define TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(pfId) \ (IRO[265].base + ((pfId) * IRO[265].m1)) -#define TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfId) \ +#define TSTORM_ISCSI_TCP_VARS_MID_LOCAL_MAC_ADDR_OFFSET(pfId) \ (IRO[266].base + ((pfId) * IRO[266].m1)) +#define TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfId) \ + (IRO[267].base + ((pfId) * IRO[267].m1)) #define TSTORM_MAC_FILTER_CONFIG_OFFSET(pfId) \ (IRO[202].base + ((pfId) * IRO[202].m1)) #define TSTORM_RECORD_SLOW_PATH_OFFSET(funcId) \ (IRO[105].base + ((funcId) * IRO[105].m1)) #define TSTORM_TCP_MAX_CWND_OFFSET(pfId) \ - (IRO[216].base + ((pfId) * IRO[216].m1)) + (IRO[217].base + ((pfId) * IRO[217].m1)) #define TSTORM_VF_TO_PF_OFFSET(funcId) \ (IRO[104].base + ((funcId) * IRO[104].m1)) #define USTORM_AGG_DATA_OFFSET (IRO[206].base) @@ -140,29 +140,29 @@ #define USTORM_ETH_PAUSE_ENABLED_OFFSET(portId) \ (IRO[183].base + ((portId) * IRO[183].m1)) #define USTORM_FCOE_EQ_PROD_OFFSET(pfId) \ - (IRO[317].base + ((pfId) * IRO[317].m1)) + (IRO[318].base + ((pfId) * IRO[318].m1)) #define USTORM_FUNC_EN_OFFSET(funcId) \ (IRO[178].base + ((funcId) * IRO[178].m1)) #define USTORM_ISCSI_CQ_SIZE_OFFSET(pfId) \ - (IRO[281].base + ((pfId) * IRO[281].m1)) -#define USTORM_ISCSI_CQ_SQN_SIZE_OFFSET(pfId) \ (IRO[282].base + ((pfId) * IRO[282].m1)) +#define USTORM_ISCSI_CQ_SQN_SIZE_OFFSET(pfId) \ + (IRO[283].base + ((pfId) * IRO[283].m1)) #define USTORM_ISCSI_ERROR_BITMAP_OFFSET(pfId) \ - (IRO[286].base + ((pfId) * IRO[286].m1)) + (IRO[287].base + ((pfId) * IRO[287].m1)) #define USTORM_ISCSI_GLOBAL_BUF_PHYS_ADDR_OFFSET(pfId) \ - (IRO[283].base + ((pfId) * IRO[283].m1)) + (IRO[284].base + ((pfId) * IRO[284].m1)) #define USTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfId) \ - (IRO[279].base + ((pfId) * IRO[279].m1)) + (IRO[280].base + ((pfId) * IRO[280].m1)) #define USTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfId) \ - (IRO[278].base + ((pfId) * IRO[278].m1)) + (IRO[279].base + ((pfId) * IRO[279].m1)) #define USTORM_ISCSI_PAGE_SIZE_OFFSET(pfId) \ - (IRO[277].base + ((pfId) * IRO[277].m1)) + (IRO[278].base + ((pfId) * IRO[278].m1)) #define USTORM_ISCSI_R2TQ_SIZE_OFFSET(pfId) \ - (IRO[280].base + ((pfId) * IRO[280].m1)) + (IRO[281].base + ((pfId) * IRO[281].m1)) #define USTORM_ISCSI_RQ_BUFFER_SIZE_OFFSET(pfId) \ - (IRO[284].base + ((pfId) * IRO[284].m1)) -#define USTORM_ISCSI_RQ_SIZE_OFFSET(pfId) \ (IRO[285].base + ((pfId) * IRO[285].m1)) +#define USTORM_ISCSI_RQ_SIZE_OFFSET(pfId) \ + (IRO[286].base + ((pfId) * IRO[286].m1)) #define USTORM_MEM_WORKAROUND_ADDRESS_OFFSET(pfId) \ (IRO[182].base + ((pfId) * IRO[182].m1)) #define USTORM_RECORD_SLOW_PATH_OFFSET(funcId) \ @@ -188,39 +188,39 @@ #define XSTORM_FUNC_EN_OFFSET(funcId) \ (IRO[47].base + ((funcId) * IRO[47].m1)) #define XSTORM_ISCSI_HQ_SIZE_OFFSET(pfId) \ - (IRO[294].base + ((pfId) * IRO[294].m1)) + (IRO[295].base + ((pfId) * IRO[295].m1)) #define XSTORM_ISCSI_LOCAL_MAC_ADDR0_OFFSET(pfId) \ - (IRO[297].base + ((pfId) * IRO[297].m1)) -#define XSTORM_ISCSI_LOCAL_MAC_ADDR1_OFFSET(pfId) \ (IRO[298].base + ((pfId) * IRO[298].m1)) -#define XSTORM_ISCSI_LOCAL_MAC_ADDR2_OFFSET(pfId) \ +#define XSTORM_ISCSI_LOCAL_MAC_ADDR1_OFFSET(pfId) \ (IRO[299].base + ((pfId) * IRO[299].m1)) -#define XSTORM_ISCSI_LOCAL_MAC_ADDR3_OFFSET(pfId) \ +#define XSTORM_ISCSI_LOCAL_MAC_ADDR2_OFFSET(pfId) \ (IRO[300].base + ((pfId) * IRO[300].m1)) -#define XSTORM_ISCSI_LOCAL_MAC_ADDR4_OFFSET(pfId) \ +#define XSTORM_ISCSI_LOCAL_MAC_ADDR3_OFFSET(pfId) \ (IRO[301].base + ((pfId) * IRO[301].m1)) -#define XSTORM_ISCSI_LOCAL_MAC_ADDR5_OFFSET(pfId) \ +#define XSTORM_ISCSI_LOCAL_MAC_ADDR4_OFFSET(pfId) \ (IRO[302].base + ((pfId) * IRO[302].m1)) -#define XSTORM_ISCSI_LOCAL_VLAN_OFFSET(pfId) \ +#define XSTORM_ISCSI_LOCAL_MAC_ADDR5_OFFSET(pfId) \ (IRO[303].base + ((pfId) * IRO[303].m1)) +#define XSTORM_ISCSI_LOCAL_VLAN_OFFSET(pfId) \ + (IRO[304].base + ((pfId) * IRO[304].m1)) #define XSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfId) \ - (IRO[293].base + ((pfId) * IRO[293].m1)) + (IRO[294].base + ((pfId) * IRO[294].m1)) #define XSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfId) \ - (IRO[292].base + ((pfId) * IRO[292].m1)) + (IRO[293].base + ((pfId) * IRO[293].m1)) #define XSTORM_ISCSI_PAGE_SIZE_OFFSET(pfId) \ - (IRO[291].base + ((pfId) * IRO[291].m1)) + (IRO[292].base + ((pfId) * IRO[292].m1)) #define XSTORM_ISCSI_R2TQ_SIZE_OFFSET(pfId) \ - (IRO[296].base + ((pfId) * IRO[296].m1)) + (IRO[297].base + ((pfId) * IRO[297].m1)) #define XSTORM_ISCSI_SQ_SIZE_OFFSET(pfId) \ - (IRO[295].base + ((pfId) * IRO[295].m1)) + (IRO[296].base + ((pfId) * IRO[296].m1)) #define XSTORM_ISCSI_TCP_VARS_ADV_WND_SCL_OFFSET(pfId) \ - (IRO[290].base + ((pfId) * IRO[290].m1)) + (IRO[291].base + ((pfId) * IRO[291].m1)) #define XSTORM_ISCSI_TCP_VARS_FLAGS_OFFSET(pfId) \ - (IRO[289].base + ((pfId) * IRO[289].m1)) + (IRO[290].base + ((pfId) * IRO[290].m1)) #define XSTORM_ISCSI_TCP_VARS_TOS_OFFSET(pfId) \ - (IRO[288].base + ((pfId) * IRO[288].m1)) + (IRO[289].base + ((pfId) * IRO[289].m1)) #define XSTORM_ISCSI_TCP_VARS_TTL_OFFSET(pfId) \ - (IRO[287].base + ((pfId) * IRO[287].m1)) + (IRO[288].base + ((pfId) * IRO[288].m1)) #define XSTORM_RATE_SHAPING_PER_VN_VARS_OFFSET(pfId) \ (IRO[44].base + ((pfId) * IRO[44].m1)) #define XSTORM_RECORD_SLOW_PATH_OFFSET(funcId) \ -- cgit v0.10.2 From 1023807458b6365e28c66095648e1b66e04a4259 Mon Sep 17 00:00:00 2001 From: Sachin Prabhu Date: Wed, 28 Mar 2012 18:07:08 +0100 Subject: Remove unnecessary check for NULL in password parser The password parser has an unnecessary check for a NULL value which triggers warnings in source checking tools. The code contains artifacts from the old parsing code which are no longer required. Signed-off-by: Sachin Prabhu Reviewed-by: Jeff Layton Reported-by: Dan Carpenter Signed-off-by: Steve French diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 302a15c..0511fdb 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1565,8 +1565,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, /* Obtain the value string */ value = strchr(data, '='); - if (value != NULL) - *value++ = '\0'; + value++; /* Set tmp_end to end of the string */ tmp_end = (char *) value + strlen(value); -- cgit v0.10.2 From cff4c16296754888b6fd8c886bc860a888e20257 Mon Sep 17 00:00:00 2001 From: Artem Savkov Date: Tue, 3 Apr 2012 10:29:11 +0000 Subject: r8169: enable napi on resume. NAPI is disabled during suspend and needs to be enabled on resume. Without this the driver locks up during resume in rtl_reset_work() trying to disable NAPI again. Signed-off-by: Artem Savkov Acked-by: Francois Romieu Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index 7b23554..f545093 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -5810,7 +5810,10 @@ static void __rtl8169_resume(struct net_device *dev) rtl_pll_power_up(tp); + rtl_lock_work(tp); + napi_enable(&tp->napi); set_bit(RTL_FLAG_TASK_ENABLED, tp->wk.flags); + rtl_unlock_work(tp); rtl_schedule_task(tp, RTL_FLAG_TASK_RESET_PENDING); } -- cgit v0.10.2 From ca53e4405347a1e19eaf59c757ceaaaa1a784758 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Tue, 3 Apr 2012 12:32:15 +0200 Subject: netfilter: xt_CT: allocation has to be GFP_ATOMIC under rcu_read_lock section Reported-by: Tetsuo Handa Signed-off-by: Pablo Neira Ayuso Signed-off-by: David S. Miller diff --git a/net/netfilter/xt_CT.c b/net/netfilter/xt_CT.c index 138b75e..4babb27 100644 --- a/net/netfilter/xt_CT.c +++ b/net/netfilter/xt_CT.c @@ -261,7 +261,7 @@ static int xt_ct_tg_check_v1(const struct xt_tgchk_param *par) goto err4; } timeout_ext = nf_ct_timeout_ext_add(ct, timeout, - GFP_KERNEL); + GFP_ATOMIC); if (timeout_ext == NULL) { ret = -ENOMEM; goto err4; -- cgit v0.10.2 From ee14186f8d2338227888f3c00a06caf31f94de38 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Tue, 3 Apr 2012 14:50:07 +0200 Subject: netfilter: xt_CT: fix missing put timeout object in error path The error path misses putting the timeout object. This patch adds new function xt_ct_tg_timeout_put() to put the timeout object. Reported-by: Tetsuo Handa Signed-off-by: Pablo Neira Ayuso Signed-off-by: David S. Miller diff --git a/net/netfilter/xt_CT.c b/net/netfilter/xt_CT.c index 4babb27..59530e9 100644 --- a/net/netfilter/xt_CT.c +++ b/net/netfilter/xt_CT.c @@ -150,6 +150,17 @@ err1: return ret; } +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT +static void __xt_ct_tg_timeout_put(struct ctnl_timeout *timeout) +{ + typeof(nf_ct_timeout_put_hook) timeout_put; + + timeout_put = rcu_dereference(nf_ct_timeout_put_hook); + if (timeout_put) + timeout_put(timeout); +} +#endif + static int xt_ct_tg_check_v1(const struct xt_tgchk_param *par) { struct xt_ct_target_info_v1 *info = par->targinfo; @@ -158,7 +169,9 @@ static int xt_ct_tg_check_v1(const struct xt_tgchk_param *par) struct nf_conn *ct; int ret = 0; u8 proto; - +#ifdef CONFIG_NF_CONNTRACK_TIMEOUT + struct ctnl_timeout *timeout; +#endif if (info->flags & ~XT_CT_NOTRACK) return -EINVAL; @@ -216,7 +229,6 @@ static int xt_ct_tg_check_v1(const struct xt_tgchk_param *par) #ifdef CONFIG_NF_CONNTRACK_TIMEOUT if (info->timeout) { typeof(nf_ct_timeout_find_get_hook) timeout_find_get; - struct ctnl_timeout *timeout; struct nf_conn_timeout *timeout_ext; rcu_read_lock(); @@ -245,7 +257,7 @@ static int xt_ct_tg_check_v1(const struct xt_tgchk_param *par) pr_info("Timeout policy `%s' can only be " "used by L3 protocol number %d\n", info->timeout, timeout->l3num); - goto err4; + goto err5; } /* Make sure the timeout policy matches any existing * protocol tracker, otherwise default to generic. @@ -258,13 +270,13 @@ static int xt_ct_tg_check_v1(const struct xt_tgchk_param *par) "used by L4 protocol number %d\n", info->timeout, timeout->l4proto->l4proto); - goto err4; + goto err5; } timeout_ext = nf_ct_timeout_ext_add(ct, timeout, GFP_ATOMIC); if (timeout_ext == NULL) { ret = -ENOMEM; - goto err4; + goto err5; } } else { ret = -ENOENT; @@ -282,6 +294,8 @@ out: return 0; #ifdef CONFIG_NF_CONNTRACK_TIMEOUT +err5: + __xt_ct_tg_timeout_put(timeout); err4: rcu_read_unlock(); #endif -- cgit v0.10.2 From d96fc659aeb27686cef42d305cfd0c9702f8841c Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Tue, 3 Apr 2012 16:45:54 +0200 Subject: netfilter: nf_conntrack: fix count leak in error path of __nf_conntrack_alloc We have to decrement the conntrack counter if we fail to access the zone extension. Reported-by: Tetsuo Handa Signed-off-by: Pablo Neira Ayuso Signed-off-by: David S. Miller diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c index cbdb754..3cc4487 100644 --- a/net/netfilter/nf_conntrack_core.c +++ b/net/netfilter/nf_conntrack_core.c @@ -735,6 +735,7 @@ __nf_conntrack_alloc(struct net *net, u16 zone, #ifdef CONFIG_NF_CONNTRACK_ZONES out_free: + atomic_dec(&net->ct.count); kmem_cache_free(net->ct.nf_conntrack_cachep, ct); return ERR_PTR(-ENOMEM); #endif -- cgit v0.10.2 From e16de9137c8beab02d78fb4fa82bb96e9f3d0ac3 Mon Sep 17 00:00:00 2001 From: Graeme Smecher Date: Tue, 3 Apr 2012 19:42:21 -0400 Subject: hwmon: (ad7314) Adds missing spi_dev initialization This driver was recently moved from IIO (where it worked) to hwmon (where it doesn't.) This breakage occured because the hwmon version neglected to correctly initialize a reference to spi_dev in its drvdata. The result is a segfault every time the temperature is queried. Signed-off-by: Graeme Smecher Cc: stable@vger.kernel.org # 3.2+ Signed-off-by: Guenter Roeck diff --git a/drivers/hwmon/ad7314.c b/drivers/hwmon/ad7314.c index 0e0cfcc..ce43642 100644 --- a/drivers/hwmon/ad7314.c +++ b/drivers/hwmon/ad7314.c @@ -128,6 +128,7 @@ static int __devinit ad7314_probe(struct spi_device *spi_dev) ret = PTR_ERR(chip->hwmon_dev); goto error_remove_group; } + chip->spi_dev = spi_dev; return 0; error_remove_group: -- cgit v0.10.2 From e4b41fb9dafb9af4fecb602bf73d858ab651eeed Mon Sep 17 00:00:00 2001 From: Sachin Prabhu Date: Wed, 4 Apr 2012 01:58:56 +0100 Subject: Fix UNC parsing on mount The code cleanup of cifs_parse_mount_options resulted in a new bug being introduced in the parsing of the UNC. This results in vol->UNC being modified before vol->UNC was allocated. Reported-by: Steve French Signed-off-by: Sachin Prabhu Signed-off-by: Steve French diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 0511fdb..d81e933 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1648,6 +1648,13 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, goto cifs_parse_mount_err; } + vol->UNC = kmalloc(temp_len+1, GFP_KERNEL); + if (vol->UNC == NULL) { + printk(KERN_WARNING "CIFS: no memory for UNC\n"); + goto cifs_parse_mount_err; + } + strcpy(vol->UNC, string); + if (strncmp(string, "//", 2) == 0) { vol->UNC[0] = '\\'; vol->UNC[1] = '\\'; @@ -1657,13 +1664,6 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, goto cifs_parse_mount_err; } - vol->UNC = kmalloc(temp_len+1, GFP_KERNEL); - if (vol->UNC == NULL) { - printk(KERN_WARNING "CIFS: no memory " - "for UNC\n"); - goto cifs_parse_mount_err; - } - strcpy(vol->UNC, string); break; case Opt_domain: string = match_strdup(args); -- cgit v0.10.2 From ca6f327dfdc6b3b90aa0c5247182ae023dce6450 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Wed, 4 Apr 2012 09:35:06 +0200 Subject: serial/sunzilog: fix keyboard on SUN SPARCstation The keyboard on my SUN SPARCstation 5 no longer worked. The culprint was: d4e33fac2408d37f7b52e80ca2a89f9fb482914f ("serial: Kill off NO_IRQ") Fix up logic for no irq / irq so the keyboard works again. Signed-off-by: Sam Ravnborg Cc: Alan Cox Cc: Greg Kroah-Hartman Signed-off-by: David S. Miller diff --git a/drivers/tty/serial/sunzilog.c b/drivers/tty/serial/sunzilog.c index b3b70b0..babd947 100644 --- a/drivers/tty/serial/sunzilog.c +++ b/drivers/tty/serial/sunzilog.c @@ -1581,7 +1581,7 @@ static int __init sunzilog_init(void) if (err) goto out_unregister_uart; - if (!zilog_irq) { + if (zilog_irq) { struct uart_sunzilog_port *up = sunzilog_irq_chain; err = request_irq(zilog_irq, sunzilog_interrupt, IRQF_SHARED, "zs", sunzilog_irq_chain); @@ -1622,7 +1622,7 @@ static void __exit sunzilog_exit(void) { platform_driver_unregister(&zs_driver); - if (!zilog_irq) { + if (zilog_irq) { struct uart_sunzilog_port *up = sunzilog_irq_chain; /* Disable Interrupts */ -- cgit v0.10.2 From 7b78f13603c6fcb64e020a0bbe31a651ea2b657b Mon Sep 17 00:00:00 2001 From: Markus Trippelsdorf Date: Wed, 4 Apr 2012 10:45:27 +0200 Subject: perf tools: Fix getrusage() related build failure on glibc trunk MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On a system running glibc trunk perf doesn't build: CC builtin-sched.o builtin-sched.c: In function ‘get_cpu_usage_nsec_parent’: builtin-sched.c:399:16: error: storage size of ‘ru’ isn’t known builtin-sched.c:403:2: error: implicit declaration of function ‘getrusage’ [-Werror=implicit-function-declaration] [...] Fix it by including sys/resource.h. Signed-off-by: Markus Trippelsdorf Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20120404084527.GA294@x4 Signed-off-by: Ingo Molnar diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c index fb8b5f8..1cad3af 100644 --- a/tools/perf/builtin-sched.c +++ b/tools/perf/builtin-sched.c @@ -17,6 +17,7 @@ #include "util/debug.h" #include +#include #include #include -- cgit v0.10.2 From fef9516425cb3a03a4a95b4de3cf8c575521df9a Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 4 Apr 2012 12:06:24 +0100 Subject: MAINTAINERS: Don't list everyone working on Wolfson drivers Rather than listing every single person who works on the drivers include the mailing list where they can all be found. Leave myself as a human contact. Signed-off-by: Mark Brown diff --git a/MAINTAINERS b/MAINTAINERS index 85c599b..5190cf2 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7463,8 +7463,7 @@ F: include/linux/wm97xx.h WOLFSON MICROELECTRONICS DRIVERS M: Mark Brown -M: Ian Lartey -M: Dimitris Papastamos +L: patches@opensource.wolfsonmicro.com T: git git://opensource.wolfsonmicro.com/linux-2.6-asoc T: git git://opensource.wolfsonmicro.com/linux-2.6-audioplus W: http://opensource.wolfsonmicro.com/content/linux-drivers-wolfson-devices -- cgit v0.10.2 From ec3e82d6dc46cac7309b01ff9761f469b0263019 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Wed, 4 Apr 2012 14:21:02 +0200 Subject: MCE, AMD: Drop too granulary family model checks MCA details seldom change inbetween the models of a family so don't be too conservative and enable decoding on everything starting from K8 onwards. Minor adjustments can come in later but most importantly, we have some decoding infrastructure in place for upcoming models by default. Signed-off-by: Borislav Petkov diff --git a/drivers/edac/mce_amd.c b/drivers/edac/mce_amd.c index 36e1486..d0c372e 100644 --- a/drivers/edac/mce_amd.c +++ b/drivers/edac/mce_amd.c @@ -754,9 +754,7 @@ static int __init mce_amd_init(void) if (c->x86_vendor != X86_VENDOR_AMD) return 0; - if ((c->x86 < 0xf || c->x86 > 0x12) && - (c->x86 != 0x14 || c->x86_model > 0xf) && - (c->x86 != 0x15 || c->x86_model > 0xf)) + if (c->x86 < 0xf || c->x86 > 0x15) return 0; fam_ops = kzalloc(sizeof(struct amd_decoder_ops), GFP_KERNEL); @@ -797,7 +795,7 @@ static int __init mce_amd_init(void) break; default: - printk(KERN_WARNING "Huh? What family is that: %d?!\n", c->x86); + printk(KERN_WARNING "Huh? What family is it: 0x%x?!\n", c->x86); kfree(fam_ops); return -EINVAL; } -- cgit v0.10.2 From 7a82ebd9ee78f8ba3a2ba66e003bfa57954a1a04 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Wed, 4 Apr 2012 08:25:25 -0600 Subject: ARM: OMAP44xx: clockdomain data: correct the emu_sys_clkdm CLKTRCTRL data MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit According to the 4430 ES2.0 TRM vX Table 3-744 "CM_EMU_CLKSTCTRL", the emu_sys clockdomain data in mainline is incorrect. The emu_sys clockdomain does not support the DISABLE_AUTO state, and instead it supports the FORCE_WAKEUP state. Signed-off-by: Paul Walmsley Cc: Benoît Cousson Cc: Kevin Hilman Cc: Santosh Shilimkar Cc: Ming Lei Cc: Will Deacon diff --git a/arch/arm/mach-omap2/clockdomains44xx_data.c b/arch/arm/mach-omap2/clockdomains44xx_data.c index 9299ac2..bd7ed13 100644 --- a/arch/arm/mach-omap2/clockdomains44xx_data.c +++ b/arch/arm/mach-omap2/clockdomains44xx_data.c @@ -390,7 +390,7 @@ static struct clockdomain emu_sys_44xx_clkdm = { .prcm_partition = OMAP4430_PRM_PARTITION, .cm_inst = OMAP4430_PRM_EMU_CM_INST, .clkdm_offs = OMAP4430_PRM_EMU_CM_EMU_CDOFFS, - .flags = CLKDM_CAN_HWSUP, + .flags = CLKDM_CAN_ENABLE_AUTO | CLKDM_CAN_FORCE_WAKEUP, }; static struct clockdomain l3_dma_44xx_clkdm = { -- cgit v0.10.2 From 26c547fd130aae7480523a3af3f1df2ef1144743 Mon Sep 17 00:00:00 2001 From: Grazvydas Ignotas Date: Fri, 16 Mar 2012 14:49:54 +0200 Subject: ARM: OMAP3xxx: HSMMC: avoid erratum workaround when transceiver is attached If transceiver is attached to a MMC host of ES2.1 OMAP35xx, it seems 2.1.1.128 erratum doesn't apply and there is no data corruption, probably because of different signal timing. The workaround for this erratum disables multiblock reads, which causes dramatic loss of performance (over 75% slower), so avoid it when transceiver is present. Cc: Paul Walmsley Signed-off-by: Grazvydas Ignotas [paul@pwsan.com: edited commit message slightly] Signed-off-by: Paul Walmsley diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c index 100db62..b0268ea 100644 --- a/arch/arm/mach-omap2/hsmmc.c +++ b/arch/arm/mach-omap2/hsmmc.c @@ -506,6 +506,13 @@ static void __init omap_hsmmc_init_one(struct omap2_hsmmc_info *hsmmcinfo, if (oh->dev_attr != NULL) { mmc_dev_attr = oh->dev_attr; mmc_data->controller_flags = mmc_dev_attr->flags; + /* + * erratum 2.1.1.128 doesn't apply if board has + * a transceiver is attached + */ + if (hsmmcinfo->transceiver) + mmc_data->controller_flags &= + ~OMAP_HSMMC_BROKEN_MULTIBLOCK_READ; } pdev = platform_device_alloc(name, ctrl_nr - 1); -- cgit v0.10.2 From ac387330a67635b4e4b946416e792bc9dd4b8f05 Mon Sep 17 00:00:00 2001 From: Grazvydas Ignotas Date: Mon, 26 Mar 2012 00:08:07 +0300 Subject: ARM: OMAP3xxx: clock data: fix DPLL4 CLKSEL masks Commit 2a9f5a4d455 "OMAP3 clock: remove unnecessary duplicate of dpll4_m2_ck, added for 36xx" consolidated dpll4 clock structures between 34xx and 36xx, but left 34xx CLKSEL masks for most dpll4 related clocks, which causes clock code to not behave correctly when booting on DM3730 with higher (36xx only) divisors set: [ 0.000000] WARNING: at arch/arm/mach-omap2/clkt_clksel.c:375 omap2_init_clksel_parent+0x104/0x114() [ 0.000000] clock: dpll4_m3_ck: init parent: could not find regval 0 [ 0.000000] WARNING: at arch/arm/mach-omap2/clkt_clksel.c:194 omap2_clksel_recalc+0xd4/0xe4() [ 0.000000] clock: Could not find fieldval 0 for clock dpll4_m3_ck parent dpll4_ck Fix this by switching to 36xx masks, as valid divisors will be limited by clksel_rate lists. Cc: Paul Walmsley Signed-off-by: Grazvydas Ignotas Signed-off-by: Paul Walmsley diff --git a/arch/arm/mach-omap2/clock3xxx_data.c b/arch/arm/mach-omap2/clock3xxx_data.c index 480fb8f..19c1dc8 100644 --- a/arch/arm/mach-omap2/clock3xxx_data.c +++ b/arch/arm/mach-omap2/clock3xxx_data.c @@ -747,7 +747,7 @@ static struct clk dpll4_m3_ck = { .parent = &dpll4_ck, .init = &omap2_init_clksel_parent, .clksel_reg = OMAP_CM_REGADDR(OMAP3430_DSS_MOD, CM_CLKSEL), - .clksel_mask = OMAP3430_CLKSEL_TV_MASK, + .clksel_mask = OMAP3630_CLKSEL_TV_MASK, .clksel = dpll4_clksel, .clkdm_name = "dpll4_clkdm", .recalc = &omap2_clksel_recalc, @@ -832,7 +832,7 @@ static struct clk dpll4_m4_ck = { .parent = &dpll4_ck, .init = &omap2_init_clksel_parent, .clksel_reg = OMAP_CM_REGADDR(OMAP3430_DSS_MOD, CM_CLKSEL), - .clksel_mask = OMAP3430_CLKSEL_DSS1_MASK, + .clksel_mask = OMAP3630_CLKSEL_DSS1_MASK, .clksel = dpll4_clksel, .clkdm_name = "dpll4_clkdm", .recalc = &omap2_clksel_recalc, @@ -859,7 +859,7 @@ static struct clk dpll4_m5_ck = { .parent = &dpll4_ck, .init = &omap2_init_clksel_parent, .clksel_reg = OMAP_CM_REGADDR(OMAP3430_CAM_MOD, CM_CLKSEL), - .clksel_mask = OMAP3430_CLKSEL_CAM_MASK, + .clksel_mask = OMAP3630_CLKSEL_CAM_MASK, .clksel = dpll4_clksel, .clkdm_name = "dpll4_clkdm", .set_rate = &omap2_clksel_set_rate, @@ -886,7 +886,7 @@ static struct clk dpll4_m6_ck = { .parent = &dpll4_ck, .init = &omap2_init_clksel_parent, .clksel_reg = OMAP_CM_REGADDR(OMAP3430_EMU_MOD, CM_CLKSEL1), - .clksel_mask = OMAP3430_DIV_DPLL4_MASK, + .clksel_mask = OMAP3630_DIV_DPLL4_MASK, .clksel = dpll4_clksel, .clkdm_name = "dpll4_clkdm", .recalc = &omap2_clksel_recalc, -- cgit v0.10.2 From a052d2c31b7b87e9b4bdee634af666b5e830e56f Mon Sep 17 00:00:00 2001 From: "Shimoda, Yoshihiro" Date: Wed, 4 Apr 2012 11:56:07 +0900 Subject: sh: fix clock-sh7757 for the latest sh_mobile_sdhi driver The commit 996bc8aebd2cd5b6d4c5d85085f171fa2447f364 (mmc: sh_mobile_sdhi: do not manage PM clocks manually) modified the sh_mobile_sdhi driver to remove the clk_enable/clk_disable. So, we need to change the "CLKDEV_CON_ID" to "CLKDEV_DEV_ID". If we don't change this, we will see the following error from the driver: sh_mobile_sdhi sh_mobile_sdhi.0: timeout waiting for hardware interrupt (CMD52) Signed-off-by: Yoshihiro Shimoda Signed-off-by: Paul Mundt diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7757.c b/arch/sh/kernel/cpu/sh4a/clock-sh7757.c index 5853989..04ab5ae 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7757.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7757.c @@ -113,7 +113,7 @@ static struct clk_lookup lookups[] = { CLKDEV_CON_ID("cpu_clk", &div4_clks[DIV4_I]), /* MSTP32 clocks */ - CLKDEV_CON_ID("sdhi0", &mstp_clks[MSTP004]), + CLKDEV_DEV_ID("sh_mobile_sdhi.0", &mstp_clks[MSTP004]), CLKDEV_CON_ID("riic0", &mstp_clks[MSTP000]), CLKDEV_CON_ID("riic1", &mstp_clks[MSTP000]), CLKDEV_CON_ID("riic2", &mstp_clks[MSTP000]), -- cgit v0.10.2 From 503d0ea24d1d3dd3db95e5e0edd693da7a2a23eb Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Wed, 4 Apr 2012 09:11:48 -0600 Subject: ARM: OMAP4: hwmod data: Add aliases for McBSP fclk clocks MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit CLKS signal for McBSP ports can be selected from internal (PRCM) or external (ABE_CLKS pin) source. To be able to use existing code we need to create clock aliases consistent among OMAP2/3/4. Based on a patch from Péter Ujfalusi ; the patch description above is his. Signed-off-by: Paul Walmsley Cc: Péter Ujfalusi Cc: Tony Lindgren Acked-by: Peter Ujfalusi diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index 08daa5e..cc9bd10 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -2996,6 +2996,11 @@ static struct omap_hwmod_ocp_if *omap44xx_mcbsp1_slaves[] = { &omap44xx_l4_abe__mcbsp1_dma, }; +static struct omap_hwmod_opt_clk mcbsp1_opt_clks[] = { + { .role = "pad_fck", .clk = "pad_clks_ck" }, + { .role = "prcm_clk", .clk = "mcbsp1_sync_mux_ck" }, +}; + static struct omap_hwmod omap44xx_mcbsp1_hwmod = { .name = "mcbsp1", .class = &omap44xx_mcbsp_hwmod_class, @@ -3012,6 +3017,8 @@ static struct omap_hwmod omap44xx_mcbsp1_hwmod = { }, .slaves = omap44xx_mcbsp1_slaves, .slaves_cnt = ARRAY_SIZE(omap44xx_mcbsp1_slaves), + .opt_clks = mcbsp1_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(mcbsp1_opt_clks), }; /* mcbsp2 */ @@ -3071,6 +3078,11 @@ static struct omap_hwmod_ocp_if *omap44xx_mcbsp2_slaves[] = { &omap44xx_l4_abe__mcbsp2_dma, }; +static struct omap_hwmod_opt_clk mcbsp2_opt_clks[] = { + { .role = "pad_fck", .clk = "pad_clks_ck" }, + { .role = "prcm_clk", .clk = "mcbsp2_sync_mux_ck" }, +}; + static struct omap_hwmod omap44xx_mcbsp2_hwmod = { .name = "mcbsp2", .class = &omap44xx_mcbsp_hwmod_class, @@ -3087,6 +3099,8 @@ static struct omap_hwmod omap44xx_mcbsp2_hwmod = { }, .slaves = omap44xx_mcbsp2_slaves, .slaves_cnt = ARRAY_SIZE(omap44xx_mcbsp2_slaves), + .opt_clks = mcbsp2_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(mcbsp2_opt_clks), }; /* mcbsp3 */ @@ -3146,6 +3160,11 @@ static struct omap_hwmod_ocp_if *omap44xx_mcbsp3_slaves[] = { &omap44xx_l4_abe__mcbsp3_dma, }; +static struct omap_hwmod_opt_clk mcbsp3_opt_clks[] = { + { .role = "pad_fck", .clk = "pad_clks_ck" }, + { .role = "prcm_clk", .clk = "mcbsp3_sync_mux_ck" }, +}; + static struct omap_hwmod omap44xx_mcbsp3_hwmod = { .name = "mcbsp3", .class = &omap44xx_mcbsp_hwmod_class, @@ -3162,6 +3181,8 @@ static struct omap_hwmod omap44xx_mcbsp3_hwmod = { }, .slaves = omap44xx_mcbsp3_slaves, .slaves_cnt = ARRAY_SIZE(omap44xx_mcbsp3_slaves), + .opt_clks = mcbsp3_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(mcbsp3_opt_clks), }; /* mcbsp4 */ @@ -3200,6 +3221,11 @@ static struct omap_hwmod_ocp_if *omap44xx_mcbsp4_slaves[] = { &omap44xx_l4_per__mcbsp4, }; +static struct omap_hwmod_opt_clk mcbsp4_opt_clks[] = { + { .role = "pad_fck", .clk = "pad_clks_ck" }, + { .role = "prcm_clk", .clk = "mcbsp4_sync_mux_ck" }, +}; + static struct omap_hwmod omap44xx_mcbsp4_hwmod = { .name = "mcbsp4", .class = &omap44xx_mcbsp_hwmod_class, @@ -3216,6 +3242,8 @@ static struct omap_hwmod omap44xx_mcbsp4_hwmod = { }, .slaves = omap44xx_mcbsp4_slaves, .slaves_cnt = ARRAY_SIZE(omap44xx_mcbsp4_slaves), + .opt_clks = mcbsp4_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(mcbsp4_opt_clks), }; /* -- cgit v0.10.2 From f3718a818f7fb3636130d5f34bde8df34f45c5e5 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Wed, 4 Apr 2012 08:16:25 -0700 Subject: Revert "nouveau/bios: Fix tracking of BIOS image data" This reverts commit d06221c0617ab6d0bc41c4980cefdd9c8cc9a1c1. It turns out to trigger the "BUG_ON(!PageCompound(page))" in kfree(), apparently because the code ends up trying to free somethng that was never kmalloced in the first place. BenH points out that the patch was untested and wasn't meant to go into the upstream kernel that quickly in the first place. Backtrace: bios_shadow bios_shadow_prom nv_mask init_io bios_shadow nouveau_bios_init NVReadVgaCrtc NVSetOwner nouveau_card_init nouveau_load Reported-by: Meelis Roos Requested-by: Dave Airlie Acked-by: Benjamin Herrenschmidt Cc: Ben Skeggs Signed-off-by: Linus Torvalds diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c index 1947d61..80963d0 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.c +++ b/drivers/gpu/drm/nouveau/nouveau_bios.c @@ -273,7 +273,6 @@ bios_shadow(struct drm_device *dev) mthd->score = score_vbios(bios, mthd->rw); mthd->size = bios->length; mthd->data = bios->data; - bios->data = NULL; } while (mthd->score != 3 && (++mthd)->shadow); mthd = shadow_methods; @@ -282,8 +281,7 @@ bios_shadow(struct drm_device *dev) if (mthd->score > best->score) { kfree(best->data); best = mthd; - } else - kfree(mthd->data); + } } while ((++mthd)->shadow); if (best->score) { -- cgit v0.10.2 From 0eb4fd9b3e4d08973f7f086dbdb14a0ad5c3d76d Mon Sep 17 00:00:00 2001 From: Nishanth Menon Date: Thu, 15 Mar 2012 13:24:31 -0500 Subject: ARM: OMAP: clock: fix race in disable all clocks clk_disable_unused is invoked when CONFIG_OMAP_RESET_CLOCKS=y. Since clk_disable_unused is called as lateinitcall, there can be more than a few workqueues executing off secondary CPU(s). The current code does the following: a) checks if clk is unused b) holds lock c) disables clk d) unlocks Between (a) and (b) being executed on CPU0, It is possible to have a driver executing on CPU1 which could do a get_sync->clk_get (and increase the use_count) of the clock which was just about to be disabled by clk_disable_unused. We ensure instead that the entire list traversal is protected by the lock allowing for parent child clock traversal which could be potentially be done by runtime operations to be safe as well. Reported-by: Todd Poynor Signed-off-by: Nishanth Menon Signed-off-by: Paul Walmsley diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c index 56b6f8b..8506cbb 100644 --- a/arch/arm/plat-omap/clock.c +++ b/arch/arm/plat-omap/clock.c @@ -441,6 +441,8 @@ static int __init clk_disable_unused(void) return 0; pr_info("clock: disabling unused clocks to save power\n"); + + spin_lock_irqsave(&clockfw_lock, flags); list_for_each_entry(ck, &clocks, node) { if (ck->ops == &clkops_null) continue; @@ -448,10 +450,9 @@ static int __init clk_disable_unused(void) if (ck->usecount > 0 || !ck->enable_reg) continue; - spin_lock_irqsave(&clockfw_lock, flags); arch_clock->clk_disable_unused(ck); - spin_unlock_irqrestore(&clockfw_lock, flags); } + spin_unlock_irqrestore(&clockfw_lock, flags); return 0; } -- cgit v0.10.2 From 167d82152079debd0a76726972a76ea032d82043 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Tue, 3 Apr 2012 19:14:04 -0400 Subject: avr32: fix nop compile fails from system.h split up To fix: In file included from kernel/exit.c:61: arch/avr32/include/asm/mmu_context.h: In function 'enable_mmu': arch/avr32/include/asm/mmu_context.h:135: error: implicit declaration of function 'nop' It needs an include of the new file created in commit ae4739465866 ("Disintegrate asm/system.h for AVR32"), but since that file only contains "nop", and since other arch already have precedent of putting nop in asm/barrier.h we should just delete the new file and put nop in barrier.h Suggested-and-acked-by: David Howells Cc: Haavard Skinnemoen Cc: Hans-Christian Egtvedt Signed-off-by: Paul Gortmaker Signed-off-by: Linus Torvalds diff --git a/arch/avr32/include/asm/barrier.h b/arch/avr32/include/asm/barrier.h index 808001c..0961275 100644 --- a/arch/avr32/include/asm/barrier.h +++ b/arch/avr32/include/asm/barrier.h @@ -8,6 +8,8 @@ #ifndef __ASM_AVR32_BARRIER_H #define __ASM_AVR32_BARRIER_H +#define nop() asm volatile("nop") + #define mb() asm volatile("" : : : "memory") #define rmb() mb() #define wmb() asm volatile("sync 0" : : : "memory") diff --git a/arch/avr32/include/asm/special_insns.h b/arch/avr32/include/asm/special_insns.h deleted file mode 100644 index f922218..0000000 --- a/arch/avr32/include/asm/special_insns.h +++ /dev/null @@ -1,13 +0,0 @@ -/* - * Copyright (C) 2004-2006 Atmel Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#ifndef __ASM_AVR32_SPECIAL_INSNS_H -#define __ASM_AVR32_SPECIAL_INSNS_H - -#define nop() asm volatile("nop") - -#endif /* __ASM_AVR32_SPECIAL_INSNS_H */ -- cgit v0.10.2 From 59269b94483eabeacbc9a535944b3dafac92a303 Mon Sep 17 00:00:00 2001 From: Ilya Yanok Date: Wed, 21 Dec 2011 00:27:14 +0100 Subject: ARM: OMAP AM3517/3505: clock data: change EMAC clocks aliases Rename EMAC clocks to match driver expectations: both davinci_emac and davinci_mdio drivers call clk_get(dev, NULL) so we have to provide ("davinci_emac", NULL) and ("davinci_mdio.0", NULL) clocks instead of ("davinci_emac", "emac_clk") and ("davinci_emac", "phy_clk") resp. Cc: Paul Walmsley Signed-off-by: Ilya Yanok Tested-by: Yegor Yefremov Tested-by: Matt Porter Signed-off-by: Paul Walmsley diff --git a/arch/arm/mach-omap2/clock3xxx_data.c b/arch/arm/mach-omap2/clock3xxx_data.c index 19c1dc8..f3a9a4a 100644 --- a/arch/arm/mach-omap2/clock3xxx_data.c +++ b/arch/arm/mach-omap2/clock3xxx_data.c @@ -3467,8 +3467,8 @@ static struct omap_clk omap3xxx_clks[] = { CLK(NULL, "ipss_ick", &ipss_ick, CK_AM35XX), CLK(NULL, "rmii_ck", &rmii_ck, CK_AM35XX), CLK(NULL, "pclk_ck", &pclk_ck, CK_AM35XX), - CLK("davinci_emac", "emac_clk", &emac_ick, CK_AM35XX), - CLK("davinci_emac", "phy_clk", &emac_fck, CK_AM35XX), + CLK("davinci_emac", NULL, &emac_ick, CK_AM35XX), + CLK("davinci_mdio.0", NULL, &emac_fck, CK_AM35XX), CLK("vpfe-capture", "master", &vpfe_ick, CK_AM35XX), CLK("vpfe-capture", "slave", &vpfe_fck, CK_AM35XX), CLK("musb-am35x", "ick", &hsotgusb_ick_am35xx, CK_AM35XX), -- cgit v0.10.2 From fd9abe1b5beafe776c51507dac32486f627c6ad8 Mon Sep 17 00:00:00 2001 From: Colin Cross Date: Wed, 4 Apr 2012 09:27:19 -0700 Subject: ARM: EXYNOS: fix CONFIG_DEBUG_LL addruart cannot read from the physical address of the chipid register, that will fail as soon as the mmu is turned on. Fixing it to read from the physical or virtual address depending on the mmu state also does not work, because there is a period between head.S and exynos_map_io where the mmu is on, the uart is mapped and used, but the chipid mapping is not yet present. Fix addruart to use the ARM Main ID cp15 register to determine if the core is Cortex A15 (EXYNOS5) or not (EXYNOS4). Signed-off-by: Colin Cross Tested-by: Marek Szyprowski Tested-by: Thomas Abraham Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-exynos/include/mach/debug-macro.S b/arch/arm/mach-exynos/include/mach/debug-macro.S index 6c857ff..e0c86ea 100644 --- a/arch/arm/mach-exynos/include/mach/debug-macro.S +++ b/arch/arm/mach-exynos/include/mach/debug-macro.S @@ -21,10 +21,9 @@ */ .macro addruart, rp, rv, tmp - mov \rp, #0x10000000 - ldr \rp, [\rp, #0x0] - and \rp, \rp, #0xf00000 - teq \rp, #0x500000 @@ EXYNOS5 + mrc p15, 0, \tmp, c0, c0, 0 + and \tmp, \tmp, #0xf0 + teq \tmp, #0xf0 @@ A15 ldreq \rp, =EXYNOS5_PA_UART movne \rp, #EXYNOS4_PA_UART @@ EXYNOS4 ldr \rv, =S3C_VA_UART -- cgit v0.10.2 From 6aa51068f58022ca616fad40b6773a1de50599f0 Mon Sep 17 00:00:00 2001 From: Dima Zavin Date: Wed, 4 Apr 2012 09:27:37 -0700 Subject: ARM: EXYNOS: use chip_id reg in uncompress to select uart base phys Signed-off-by: Dima Zavin Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-exynos/include/mach/uncompress.h b/arch/arm/mach-exynos/include/mach/uncompress.h index 493f4f3..2979995 100644 --- a/arch/arm/mach-exynos/include/mach/uncompress.h +++ b/arch/arm/mach-exynos/include/mach/uncompress.h @@ -20,9 +20,24 @@ volatile u8 *uart_base; #include +static unsigned int __raw_readl(unsigned int ptr) +{ + return *((volatile unsigned int *)ptr); +} + static void arch_detect_cpu(void) { - if (machine_is_smdk5250()) + u32 chip_id = __raw_readl(EXYNOS_PA_CHIPID); + + /* + * product_id is bits 31:12 + * bits 23:20 describe the exynosX family + * + */ + chip_id >>= 20; + chip_id &= 0xf; + + if (chip_id == 0x5) uart_base = (volatile u8 *)EXYNOS5_PA_UART + (S3C_UART_OFFSET * CONFIG_S3C_LOWLEVEL_UART_PORT); else uart_base = (volatile u8 *)EXYNOS4_PA_UART + (S3C_UART_OFFSET * CONFIG_S3C_LOWLEVEL_UART_PORT); -- cgit v0.10.2 From 1e7caf8bcf1b49eae152ad7cf442775472dd587c Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Wed, 21 Mar 2012 14:38:55 +0100 Subject: USB: ohci-at91: fix vbus_pin_active_low handling The information is not properly taken into account for {get|set}_power() functions. Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD Acked-by: Alan Stern Cc: stable [3.2+] diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index db8963f..4d266ae 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -247,7 +247,7 @@ static void ohci_at91_usb_set_power(struct at91_usbh_data *pdata, int port, int return; gpio_set_value(pdata->vbus_pin[port], - !pdata->vbus_pin_active_low[port] ^ enable); + pdata->vbus_pin_active_low[port] ^ enable); } static int ohci_at91_usb_get_power(struct at91_usbh_data *pdata, int port) @@ -259,7 +259,7 @@ static int ohci_at91_usb_get_power(struct at91_usbh_data *pdata, int port) return -EINVAL; return gpio_get_value(pdata->vbus_pin[port]) ^ - !pdata->vbus_pin_active_low[port]; + pdata->vbus_pin_active_low[port]; } /* -- cgit v0.10.2 From cca0355a09b1bfe9f8985285199a346e13cacf39 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Wed, 28 Mar 2012 11:56:28 +0200 Subject: ARM: at91/USB host: specify and handle properly vbus_pin_active_low Due to an error while handling vbus_pin_active_low in ohci-at91 driver, the specification of this property was not good in devices/board files. Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD Cc: stable [3.2+] diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c index 53688c46..27cfce3 100644 --- a/arch/arm/mach-at91/at91sam9263_devices.c +++ b/arch/arm/mach-at91/at91sam9263_devices.c @@ -72,7 +72,8 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data) /* Enable VBus control for UHP ports */ for (i = 0; i < data->ports; i++) { if (gpio_is_valid(data->vbus_pin[i])) - at91_set_gpio_output(data->vbus_pin[i], 0); + at91_set_gpio_output(data->vbus_pin[i], + data->vbus_pin_active_low[i]); } /* Enable overcurrent notification */ diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c index 698479f..ddf210a 100644 --- a/arch/arm/mach-at91/at91sam9g45_devices.c +++ b/arch/arm/mach-at91/at91sam9g45_devices.c @@ -127,7 +127,8 @@ void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data) /* Enable VBus control for UHP ports */ for (i = 0; i < data->ports; i++) { if (gpio_is_valid(data->vbus_pin[i])) - at91_set_gpio_output(data->vbus_pin[i], 0); + at91_set_gpio_output(data->vbus_pin[i], + data->vbus_pin_active_low[i]); } /* Enable overcurrent notification */ @@ -188,7 +189,8 @@ void __init at91_add_device_usbh_ehci(struct at91_usbh_data *data) /* Enable VBus control for UHP ports */ for (i = 0; i < data->ports; i++) { if (gpio_is_valid(data->vbus_pin[i])) - at91_set_gpio_output(data->vbus_pin[i], 0); + at91_set_gpio_output(data->vbus_pin[i], + data->vbus_pin_active_low[i]); } usbh_ehci_data = *data; diff --git a/arch/arm/mach-at91/board-sam9263ek.c b/arch/arm/mach-at91/board-sam9263ek.c index 66f0ddf..2ffe50f 100644 --- a/arch/arm/mach-at91/board-sam9263ek.c +++ b/arch/arm/mach-at91/board-sam9263ek.c @@ -74,6 +74,7 @@ static void __init ek_init_early(void) static struct at91_usbh_data __initdata ek_usbh_data = { .ports = 2, .vbus_pin = { AT91_PIN_PA24, AT91_PIN_PA21 }, + .vbus_pin_active_low = {1, 1}, .overcurrent_pin= {-EINVAL, -EINVAL}, }; diff --git a/arch/arm/mach-at91/board-sam9m10g45ek.c b/arch/arm/mach-at91/board-sam9m10g45ek.c index e1bea73..c88e908 100644 --- a/arch/arm/mach-at91/board-sam9m10g45ek.c +++ b/arch/arm/mach-at91/board-sam9m10g45ek.c @@ -71,6 +71,7 @@ static void __init ek_init_early(void) static struct at91_usbh_data __initdata ek_usbh_hs_data = { .ports = 2, .vbus_pin = {AT91_PIN_PD1, AT91_PIN_PD3}, + .vbus_pin_active_low = {1, 1}, .overcurrent_pin= {-EINVAL, -EINVAL}, }; -- cgit v0.10.2 From 74adcb210685e7191425b6203e67c08d759412fa Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Wed, 21 Mar 2012 14:48:23 +0100 Subject: ARM: at91/dts: USB host vbus is active low Change vbus gpio configuration in .dts files to switch to active low configuration. Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD Cc: stable diff --git a/arch/arm/boot/dts/at91sam9g25ek.dts b/arch/arm/boot/dts/at91sam9g25ek.dts index ac0dc00..7829a4d 100644 --- a/arch/arm/boot/dts/at91sam9g25ek.dts +++ b/arch/arm/boot/dts/at91sam9g25ek.dts @@ -37,8 +37,8 @@ usb0: ohci@00600000 { status = "okay"; num-ports = <2>; - atmel,vbus-gpio = <&pioD 19 0 - &pioD 20 0 + atmel,vbus-gpio = <&pioD 19 1 + &pioD 20 1 >; }; diff --git a/arch/arm/boot/dts/at91sam9m10g45ek.dts b/arch/arm/boot/dts/at91sam9m10g45ek.dts index c4c8ae4..6abb571 100644 --- a/arch/arm/boot/dts/at91sam9m10g45ek.dts +++ b/arch/arm/boot/dts/at91sam9m10g45ek.dts @@ -73,8 +73,8 @@ usb0: ohci@00700000 { status = "okay"; num-ports = <2>; - atmel,vbus-gpio = <&pioD 1 0 - &pioD 3 0>; + atmel,vbus-gpio = <&pioD 1 1 + &pioD 3 1>; }; usb1: ehci@00800000 { -- cgit v0.10.2 From aaf9f5fc67c18259760d6302e679dcb3e36709a7 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Wed, 21 Mar 2012 16:58:11 +0100 Subject: USB: ohci-at91: rework and fix initialization The DT information are filled in a pdata structure and then passed on to the usual check code of the probe function. Thus we do not need to redo the gpio checking and irq configuration in the DT-related code. On the other hand, we setup GPIO direction in driver for vbus and overcurrent. It will be useful when moving to pinctrl subsystem. Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD Acked-by: Alan Stern diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index 4d266ae..c30da6a 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -492,7 +492,7 @@ static u64 at91_ohci_dma_mask = DMA_BIT_MASK(32); static int __devinit ohci_at91_of_init(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; - int i, ret, gpio; + int i, gpio; enum of_gpio_flags flags; struct at91_usbh_data *pdata; u32 ports; @@ -520,42 +520,11 @@ static int __devinit ohci_at91_of_init(struct platform_device *pdev) if (!gpio_is_valid(gpio)) continue; pdata->vbus_pin_active_low[i] = flags & OF_GPIO_ACTIVE_LOW; - ret = gpio_request(gpio, "ohci_vbus"); - if (ret) { - dev_warn(&pdev->dev, "can't request vbus gpio %d", gpio); - continue; - } - ret = gpio_direction_output(gpio, !(flags & OF_GPIO_ACTIVE_LOW) ^ 1); - if (ret) - dev_warn(&pdev->dev, "can't put vbus gpio %d as output %d", - !(flags & OF_GPIO_ACTIVE_LOW) ^ 1, gpio); } - for (i = 0; i < 2; i++) { - gpio = of_get_named_gpio_flags(np, "atmel,oc-gpio", i, &flags); - pdata->overcurrent_pin[i] = gpio; - if (!gpio_is_valid(gpio)) - continue; - ret = gpio_request(gpio, "ohci_overcurrent"); - if (ret) { - dev_err(&pdev->dev, "can't request overcurrent gpio %d", gpio); - continue; - } - - ret = gpio_direction_input(gpio); - if (ret) { - dev_err(&pdev->dev, "can't configure overcurrent gpio %d as input", gpio); - continue; - } - - ret = request_irq(gpio_to_irq(gpio), - ohci_hcd_at91_overcurrent_irq, - IRQF_SHARED, "ohci_overcurrent", pdev); - if (ret) { - gpio_free(gpio); - dev_warn(& pdev->dev, "cannot get GPIO IRQ for overcurrent\n"); - } - } + for (i = 0; i < 2; i++) + pdata->overcurrent_pin[i] = + of_get_named_gpio_flags(np, "atmel,oc-gpio", i, &flags); pdev->dev.platform_data = pdata; @@ -574,6 +543,8 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev) { struct at91_usbh_data *pdata; int i; + int gpio; + int ret; i = ohci_at91_of_init(pdev); @@ -586,23 +557,56 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev) for (i = 0; i < ARRAY_SIZE(pdata->vbus_pin); i++) { if (!gpio_is_valid(pdata->vbus_pin[i])) continue; - gpio_request(pdata->vbus_pin[i], "ohci_vbus"); + gpio = pdata->vbus_pin[i]; + + ret = gpio_request(gpio, "ohci_vbus"); + if (ret) { + dev_err(&pdev->dev, + "can't request vbus gpio %d\n", gpio); + continue; + } + ret = gpio_direction_output(gpio, + !pdata->vbus_pin_active_low[i]); + if (ret) { + dev_err(&pdev->dev, + "can't put vbus gpio %d as output %d\n", + gpio, !pdata->vbus_pin_active_low[i]); + gpio_free(gpio); + continue; + } + ohci_at91_usb_set_power(pdata, i, 1); } for (i = 0; i < ARRAY_SIZE(pdata->overcurrent_pin); i++) { - int ret; - if (!gpio_is_valid(pdata->overcurrent_pin[i])) continue; - gpio_request(pdata->overcurrent_pin[i], "ohci_overcurrent"); + gpio = pdata->overcurrent_pin[i]; + + ret = gpio_request(gpio, "ohci_overcurrent"); + if (ret) { + dev_err(&pdev->dev, + "can't request overcurrent gpio %d\n", + gpio); + continue; + } + + ret = gpio_direction_input(gpio); + if (ret) { + dev_err(&pdev->dev, + "can't configure overcurrent gpio %d as input\n", + gpio); + gpio_free(gpio); + continue; + } - ret = request_irq(gpio_to_irq(pdata->overcurrent_pin[i]), + ret = request_irq(gpio_to_irq(gpio), ohci_hcd_at91_overcurrent_irq, IRQF_SHARED, "ohci_overcurrent", pdev); if (ret) { - gpio_free(pdata->overcurrent_pin[i]); - dev_warn(& pdev->dev, "cannot get GPIO IRQ for overcurrent\n"); + gpio_free(gpio); + dev_err(&pdev->dev, + "can't get gpio IRQ for overcurrent\n"); } } } -- cgit v0.10.2 From 0ee6d1eeef7bf4e08aba37bf1da377b25e8d853a Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Wed, 21 Mar 2012 16:53:09 +0100 Subject: USB: ohci-at91: change maximum number of ports Change number of ports to 3 for newer SoCs. Modify pdata structure and ohci-at91 code that was dealing with ports information and check of port indexes. Several coding style errors have been addresses as the patch was touching affected lines of code and was producing errors while run through checkpatch.pl. Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD Acked-by: Alan Stern diff --git a/arch/arm/mach-at91/include/mach/board.h b/arch/arm/mach-at91/include/mach/board.h index 544a5d5..49a8211 100644 --- a/arch/arm/mach-at91/include/mach/board.h +++ b/arch/arm/mach-at91/include/mach/board.h @@ -86,14 +86,15 @@ extern void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *d extern void __init at91_add_device_eth(struct macb_platform_data *data); /* USB Host */ +#define AT91_MAX_USBH_PORTS 3 struct at91_usbh_data { - u8 ports; /* number of ports on root hub */ - int vbus_pin[2]; /* port power-control pin */ - u8 vbus_pin_active_low[2]; + int vbus_pin[AT91_MAX_USBH_PORTS]; /* port power-control pin */ + int overcurrent_pin[AT91_MAX_USBH_PORTS]; + u8 ports; /* number of ports on root hub */ u8 overcurrent_supported; - int overcurrent_pin[2]; - u8 overcurrent_status[2]; - u8 overcurrent_changed[2]; + u8 vbus_pin_active_low[AT91_MAX_USBH_PORTS]; + u8 overcurrent_status[AT91_MAX_USBH_PORTS]; + u8 overcurrent_changed[AT91_MAX_USBH_PORTS]; }; extern void __init at91_add_device_usbh(struct at91_usbh_data *data); extern void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data); diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index c30da6a..7cf4797 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -27,6 +27,10 @@ #error "CONFIG_ARCH_AT91 must be defined." #endif +#define valid_port(index) ((index) >= 0 && (index) < AT91_MAX_USBH_PORTS) +#define at91_for_each_port(index) \ + for ((index) = 0; (index) < AT91_MAX_USBH_PORTS; (index)++) + /* interface and function clocks; sometimes also an AHB clock */ static struct clk *iclk, *fclk, *hclk; static int clocked; @@ -240,7 +244,7 @@ ohci_at91_start (struct usb_hcd *hcd) static void ohci_at91_usb_set_power(struct at91_usbh_data *pdata, int port, int enable) { - if (port < 0 || port >= 2) + if (!valid_port(port)) return; if (!gpio_is_valid(pdata->vbus_pin[port])) @@ -252,7 +256,7 @@ static void ohci_at91_usb_set_power(struct at91_usbh_data *pdata, int port, int static int ohci_at91_usb_get_power(struct at91_usbh_data *pdata, int port) { - if (port < 0 || port >= 2) + if (!valid_port(port)) return -EINVAL; if (!gpio_is_valid(pdata->vbus_pin[port])) @@ -271,9 +275,9 @@ static int ohci_at91_hub_status_data(struct usb_hcd *hcd, char *buf) int length = ohci_hub_status_data(hcd, buf); int port; - for (port = 0; port < ARRAY_SIZE(pdata->overcurrent_pin); port++) { + at91_for_each_port(port) { if (pdata->overcurrent_changed[port]) { - if (! length) + if (!length) length = 1; buf[0] |= 1 << (port + 1); } @@ -297,11 +301,17 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, "ohci_at91_hub_control(%p,0x%04x,0x%04x,0x%04x,%p,%04x)\n", hcd, typeReq, wValue, wIndex, buf, wLength); + wIndex--; + switch (typeReq) { case SetPortFeature: if (wValue == USB_PORT_FEAT_POWER) { dev_dbg(hcd->self.controller, "SetPortFeat: POWER\n"); - ohci_at91_usb_set_power(pdata, wIndex - 1, 1); + if (valid_port(wIndex)) { + ohci_at91_usb_set_power(pdata, wIndex, 1); + ret = 0; + } + goto out; } break; @@ -312,9 +322,9 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, dev_dbg(hcd->self.controller, "ClearPortFeature: C_OVER_CURRENT\n"); - if (wIndex == 1 || wIndex == 2) { - pdata->overcurrent_changed[wIndex-1] = 0; - pdata->overcurrent_status[wIndex-1] = 0; + if (valid_port(wIndex)) { + pdata->overcurrent_changed[wIndex] = 0; + pdata->overcurrent_status[wIndex] = 0; } goto out; @@ -323,9 +333,8 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, dev_dbg(hcd->self.controller, "ClearPortFeature: OVER_CURRENT\n"); - if (wIndex == 1 || wIndex == 2) { - pdata->overcurrent_status[wIndex-1] = 0; - } + if (valid_port(wIndex)) + pdata->overcurrent_status[wIndex] = 0; goto out; @@ -333,15 +342,15 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, dev_dbg(hcd->self.controller, "ClearPortFeature: POWER\n"); - if (wIndex == 1 || wIndex == 2) { - ohci_at91_usb_set_power(pdata, wIndex - 1, 0); + if (valid_port(wIndex)) { + ohci_at91_usb_set_power(pdata, wIndex, 0); return 0; } } break; } - ret = ohci_hub_control(hcd, typeReq, wValue, wIndex, buf, wLength); + ret = ohci_hub_control(hcd, typeReq, wValue, wIndex + 1, buf, wLength); if (ret) goto out; @@ -377,18 +386,15 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, dev_dbg(hcd->self.controller, "GetPortStatus(%d)\n", wIndex); - if (wIndex == 1 || wIndex == 2) { - if (! ohci_at91_usb_get_power(pdata, wIndex-1)) { + if (valid_port(wIndex)) { + if (!ohci_at91_usb_get_power(pdata, wIndex)) *data &= ~cpu_to_le32(RH_PS_PPS); - } - if (pdata->overcurrent_changed[wIndex-1]) { + if (pdata->overcurrent_changed[wIndex]) *data |= cpu_to_le32(RH_PS_OCIC); - } - if (pdata->overcurrent_status[wIndex-1]) { + if (pdata->overcurrent_status[wIndex]) *data |= cpu_to_le32(RH_PS_POCI); - } } } @@ -450,14 +456,14 @@ static irqreturn_t ohci_hcd_at91_overcurrent_irq(int irq, void *data) /* From the GPIO notifying the over-current situation, find * out the corresponding port */ - for (port = 0; port < ARRAY_SIZE(pdata->overcurrent_pin); port++) { + at91_for_each_port(port) { if (gpio_to_irq(pdata->overcurrent_pin[port]) == irq) { gpio = pdata->overcurrent_pin[port]; break; } } - if (port == ARRAY_SIZE(pdata->overcurrent_pin)) { + if (port == AT91_MAX_USBH_PORTS) { dev_err(& pdev->dev, "overcurrent interrupt from unknown GPIO\n"); return IRQ_HANDLED; } @@ -467,7 +473,7 @@ static irqreturn_t ohci_hcd_at91_overcurrent_irq(int irq, void *data) /* When notified of an over-current situation, disable power on the corresponding port, and mark this port in over-current. */ - if (! val) { + if (!val) { ohci_at91_usb_set_power(pdata, port, 0); pdata->overcurrent_status[port] = 1; pdata->overcurrent_changed[port] = 1; @@ -514,7 +520,7 @@ static int __devinit ohci_at91_of_init(struct platform_device *pdev) if (!of_property_read_u32(np, "num-ports", &ports)) pdata->ports = ports; - for (i = 0; i < 2; i++) { + at91_for_each_port(i) { gpio = of_get_named_gpio_flags(np, "atmel,vbus-gpio", i, &flags); pdata->vbus_pin[i] = gpio; if (!gpio_is_valid(gpio)) @@ -522,7 +528,7 @@ static int __devinit ohci_at91_of_init(struct platform_device *pdev) pdata->vbus_pin_active_low[i] = flags & OF_GPIO_ACTIVE_LOW; } - for (i = 0; i < 2; i++) + at91_for_each_port(i) pdata->overcurrent_pin[i] = of_get_named_gpio_flags(np, "atmel,oc-gpio", i, &flags); @@ -554,7 +560,7 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev) pdata = pdev->dev.platform_data; if (pdata) { - for (i = 0; i < ARRAY_SIZE(pdata->vbus_pin); i++) { + at91_for_each_port(i) { if (!gpio_is_valid(pdata->vbus_pin[i])) continue; gpio = pdata->vbus_pin[i]; @@ -578,7 +584,7 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev) ohci_at91_usb_set_power(pdata, i, 1); } - for (i = 0; i < ARRAY_SIZE(pdata->overcurrent_pin); i++) { + at91_for_each_port(i) { if (!gpio_is_valid(pdata->overcurrent_pin[i])) continue; gpio = pdata->overcurrent_pin[i]; @@ -621,14 +627,14 @@ static int ohci_hcd_at91_drv_remove(struct platform_device *pdev) int i; if (pdata) { - for (i = 0; i < ARRAY_SIZE(pdata->vbus_pin); i++) { + at91_for_each_port(i) { if (!gpio_is_valid(pdata->vbus_pin[i])) continue; ohci_at91_usb_set_power(pdata, i, 0); gpio_free(pdata->vbus_pin[i]); } - for (i = 0; i < ARRAY_SIZE(pdata->overcurrent_pin); i++) { + at91_for_each_port(i) { if (!gpio_is_valid(pdata->overcurrent_pin[i])) continue; free_irq(gpio_to_irq(pdata->overcurrent_pin[i]), pdev); -- cgit v0.10.2 From 1887ab2bf236596a5ac7c0e7a90127b468c24081 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Wed, 28 Mar 2012 11:49:01 +0200 Subject: USB: ohci-at91: trivial return code name change Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD Acked-by: Alan Stern diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index 7cf4797..09f597a 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -552,10 +552,9 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev) int gpio; int ret; - i = ohci_at91_of_init(pdev); - - if (i) - return i; + ret = ohci_at91_of_init(pdev); + if (ret) + return ret; pdata = pdev->dev.platform_data; -- cgit v0.10.2 From 4352808cfd4567d1912c15c18096b1ece79ce5bf Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Thu, 22 Mar 2012 14:47:40 +0100 Subject: ARM: at91/at91sam9x5.dtsi: fix NAND ale/cle in DT file Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi index c111001..6597177 100644 --- a/arch/arm/boot/dts/at91sam9x5.dtsi +++ b/arch/arm/boot/dts/at91sam9x5.dtsi @@ -201,8 +201,8 @@ >; atmel,nand-addr-offset = <21>; atmel,nand-cmd-offset = <22>; - gpios = <&pioC 8 0 - &pioC 14 0 + gpios = <&pioD 5 0 + &pioD 4 0 0 >; status = "disabled"; -- cgit v0.10.2 From c16524e6a957bc96ed02738d5396d355c0027d00 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Thu, 22 Mar 2012 14:48:47 +0100 Subject: ARM: at91/NAND DT bindings: add comments Add comments to NAND "gpios" property to make it clearer. Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD diff --git a/Documentation/devicetree/bindings/mtd/atmel-nand.txt b/Documentation/devicetree/bindings/mtd/atmel-nand.txt index 5903ecf..a200695 100644 --- a/Documentation/devicetree/bindings/mtd/atmel-nand.txt +++ b/Documentation/devicetree/bindings/mtd/atmel-nand.txt @@ -27,13 +27,13 @@ nand0: nand@40000000,0 { reg = <0x40000000 0x10000000 0xffffe800 0x200 >; - atmel,nand-addr-offset = <21>; - atmel,nand-cmd-offset = <22>; + atmel,nand-addr-offset = <21>; /* ale */ + atmel,nand-cmd-offset = <22>; /* cle */ nand-on-flash-bbt; nand-ecc-mode = "soft"; - gpios = <&pioC 13 0 - &pioC 14 0 - 0 + gpios = <&pioC 13 0 /* rdy */ + &pioC 14 0 /* nce */ + 0 /* cd */ >; partition@0 { ... -- cgit v0.10.2 From 9475375a5eb2ab9380e644d45173f67cbca0da80 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Tue, 27 Mar 2012 18:23:31 +0200 Subject: USB: ehci-atmel: add needed of.h header file Compilation error in case of non-DT configuration without this of.h header file. Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD Acked-by: Alan Stern diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c index 19f318a..cf14c95 100644 --- a/drivers/usb/host/ehci-atmel.c +++ b/drivers/usb/host/ehci-atmel.c @@ -13,6 +13,7 @@ #include #include +#include #include /* interface and function clocks */ -- cgit v0.10.2 From 0c2c1f624d4f99825851f0253f1308dd591df6ef Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Wed, 28 Mar 2012 11:58:58 +0200 Subject: ARM: at91: fix check of valid GPIO for SPI and USB SPI chip select pins have to be checked by gpio_is_valid(). The USB host overcurrent_pin checking was missing. Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c index 7e5651e..5652dde 100644 --- a/arch/arm/mach-at91/at91sam9260_devices.c +++ b/arch/arm/mach-at91/at91sam9260_devices.c @@ -598,6 +598,9 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) else cs_pin = spi1_standard_cs[devices[i].chip_select]; + if (!gpio_is_valid(cs_pin)) + continue; + if (devices[i].bus_num == 0) enable_spi0 = 1; else diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c index 096da87..4db961a 100644 --- a/arch/arm/mach-at91/at91sam9261_devices.c +++ b/arch/arm/mach-at91/at91sam9261_devices.c @@ -415,6 +415,9 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) else cs_pin = spi1_standard_cs[devices[i].chip_select]; + if (!gpio_is_valid(cs_pin)) + continue; + if (devices[i].bus_num == 0) enable_spi0 = 1; else diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c index 27cfce3..fe99206 100644 --- a/arch/arm/mach-at91/at91sam9263_devices.c +++ b/arch/arm/mach-at91/at91sam9263_devices.c @@ -672,6 +672,9 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) else cs_pin = spi1_standard_cs[devices[i].chip_select]; + if (!gpio_is_valid(cs_pin)) + continue; + if (devices[i].bus_num == 0) enable_spi0 = 1; else diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c index ddf210a..6b008ae 100644 --- a/arch/arm/mach-at91/at91sam9g45_devices.c +++ b/arch/arm/mach-at91/at91sam9g45_devices.c @@ -133,7 +133,7 @@ void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data) /* Enable overcurrent notification */ for (i = 0; i < data->ports; i++) { - if (data->overcurrent_pin[i]) + if (gpio_is_valid(data->overcurrent_pin[i])) at91_set_gpio_input(data->overcurrent_pin[i], 1); } @@ -787,6 +787,9 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) else cs_pin = spi1_standard_cs[devices[i].chip_select]; + if (!gpio_is_valid(cs_pin)) + continue; + if (devices[i].bus_num == 0) enable_spi0 = 1; else diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c index eda72e8..fe4ae22 100644 --- a/arch/arm/mach-at91/at91sam9rl_devices.c +++ b/arch/arm/mach-at91/at91sam9rl_devices.c @@ -419,6 +419,9 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) else cs_pin = spi_standard_cs[devices[i].chip_select]; + if (!gpio_is_valid(cs_pin)) + continue; + /* enable chip-select pin */ at91_set_gpio_output(cs_pin, 1); -- cgit v0.10.2 From dcce6ce802c271cd7c21f4730f301150577b2826 Mon Sep 17 00:00:00 2001 From: Ludovic Desroches Date: Mon, 2 Apr 2012 20:44:20 +0200 Subject: ARM: at91: dt: remove unit-address part for memory nodes Because of the inclusion of skeleton.dtsi, the memory node is named "memory" we where not modifying the already included one but creating a new one. It caused bad memory node detection during early_init_dt_scan_memory() so we modify them. Signed-off-by: Ludovic Desroches Signed-off-by: Nicolas Ferre Acked-by: Grant Likely Cc: Jean-Christophe PLAGNIOL-VILLARD Cc: devicetree-discuss@lists.ozlabs.org diff --git a/arch/arm/boot/dts/at91sam9g20.dtsi b/arch/arm/boot/dts/at91sam9g20.dtsi index 92f3662..799ad18 100644 --- a/arch/arm/boot/dts/at91sam9g20.dtsi +++ b/arch/arm/boot/dts/at91sam9g20.dtsi @@ -35,7 +35,7 @@ }; }; - memory@20000000 { + memory { reg = <0x20000000 0x08000000>; }; diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi index 3d0c32f..9e6eb6e 100644 --- a/arch/arm/boot/dts/at91sam9g45.dtsi +++ b/arch/arm/boot/dts/at91sam9g45.dtsi @@ -36,7 +36,7 @@ }; }; - memory@70000000 { + memory { reg = <0x70000000 0x10000000>; }; diff --git a/arch/arm/boot/dts/at91sam9m10g45ek.dts b/arch/arm/boot/dts/at91sam9m10g45ek.dts index 6abb571..a3633bd 100644 --- a/arch/arm/boot/dts/at91sam9m10g45ek.dts +++ b/arch/arm/boot/dts/at91sam9m10g45ek.dts @@ -17,7 +17,7 @@ bootargs = "mem=64M console=ttyS0,115200 root=/dev/mtdblock1 rw rootfstype=jffs2"; }; - memory@70000000 { + memory { reg = <0x70000000 0x4000000>; }; diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi index 6597177..70ab3a4 100644 --- a/arch/arm/boot/dts/at91sam9x5.dtsi +++ b/arch/arm/boot/dts/at91sam9x5.dtsi @@ -34,7 +34,7 @@ }; }; - memory@20000000 { + memory { reg = <0x20000000 0x10000000>; }; diff --git a/arch/arm/boot/dts/at91sam9x5cm.dtsi b/arch/arm/boot/dts/at91sam9x5cm.dtsi index 67936f8..31e7be2 100644 --- a/arch/arm/boot/dts/at91sam9x5cm.dtsi +++ b/arch/arm/boot/dts/at91sam9x5cm.dtsi @@ -8,7 +8,7 @@ */ / { - memory@20000000 { + memory { reg = <0x20000000 0x8000000>; }; diff --git a/arch/arm/boot/dts/usb_a9g20.dts b/arch/arm/boot/dts/usb_a9g20.dts index 3b3c4e0..7c2399c 100644 --- a/arch/arm/boot/dts/usb_a9g20.dts +++ b/arch/arm/boot/dts/usb_a9g20.dts @@ -16,7 +16,7 @@ bootargs = "mem=64M console=ttyS0,115200 root=/dev/mtdblock5 rw rootfstype=ubifs"; }; - memory@20000000 { + memory { reg = <0x20000000 0x4000000>; }; -- cgit v0.10.2 From 2d1f6310d499f8d23e6726292c89380bd1d9693e Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Wed, 4 Apr 2012 10:09:03 -0700 Subject: EXYNOS: fix dependency for EXYNOS_CPUFREQ This fixes the CPUFREQ dependency for regarding EXYNOS SoCs such as EXYNOS4210, EXYNOS4X12 and EXYNOS5250. Its cpufreq driver should be built with selection of SoC arch part. Reported-by: Russell King Acked-by: Dave Jones Signed-off-by: Kukjin Kim diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm index 32d790d..ffbb446 100644 --- a/drivers/cpufreq/Kconfig.arm +++ b/drivers/cpufreq/Kconfig.arm @@ -51,9 +51,6 @@ config ARM_S5PV210_CPUFREQ config ARM_EXYNOS_CPUFREQ bool "SAMSUNG EXYNOS SoCs" depends on ARCH_EXYNOS - select ARM_EXYNOS4210_CPUFREQ if CPU_EXYNOS4210 - select ARM_EXYNOS4X12_CPUFREQ if (SOC_EXYNOS4212 || SOC_EXYNOS4412) - select ARM_EXYNOS5250_CPUFREQ if SOC_EXYNOS5250 default y help This adds the CPUFreq driver common part for Samsung @@ -62,20 +59,19 @@ config ARM_EXYNOS_CPUFREQ If in doubt, say N. config ARM_EXYNOS4210_CPUFREQ - bool "Samsung EXYNOS4210" - depends on ARCH_EXYNOS + def_bool CPU_EXYNOS4210 help This adds the CPUFreq driver for Samsung EXYNOS4210 SoC (S5PV310 or S5PC210). config ARM_EXYNOS4X12_CPUFREQ - bool "Samsung EXYNOS4X12" + def_bool (SOC_EXYNOS4212 || SOC_EXYNOS4412) help This adds the CPUFreq driver for Samsung EXYNOS4X12 SoC (EXYNOS4212 or EXYNOS4412). config ARM_EXYNOS5250_CPUFREQ - bool "Samsung EXYNOS5250" + def_bool SOC_EXYNOS5250 help This adds the CPUFreq driver for Samsung EXYNOS5250 SoC. -- cgit v0.10.2 From 5c1e2c9dc684f26fcc78ff4ef15dc97ed0244303 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Fri, 16 Mar 2012 17:35:08 -0600 Subject: gpio: tegra: fix register address calculations for Tegra30 Tegra20 and Tegra30 share the same register layout within registers, but the addresses of the registers is a little different. Fix the driver to cope with this. Signed-off-by: Stephen Warren Acked-by: Olof Johansson diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c index 32de670..7d05a34 100644 --- a/drivers/gpio/gpio-tegra.c +++ b/drivers/gpio/gpio-tegra.c @@ -22,7 +22,7 @@ #include #include #include -#include +#include #include #include #include @@ -37,7 +37,8 @@ #define GPIO_PORT(x) (((x) >> 3) & 0x3) #define GPIO_BIT(x) ((x) & 0x7) -#define GPIO_REG(x) (GPIO_BANK(x) * 0x80 + GPIO_PORT(x) * 4) +#define GPIO_REG(x) (GPIO_BANK(x) * tegra_gpio_bank_stride + \ + GPIO_PORT(x) * 4) #define GPIO_CNF(x) (GPIO_REG(x) + 0x00) #define GPIO_OE(x) (GPIO_REG(x) + 0x10) @@ -48,12 +49,12 @@ #define GPIO_INT_LVL(x) (GPIO_REG(x) + 0x60) #define GPIO_INT_CLR(x) (GPIO_REG(x) + 0x70) -#define GPIO_MSK_CNF(x) (GPIO_REG(x) + 0x800) -#define GPIO_MSK_OE(x) (GPIO_REG(x) + 0x810) -#define GPIO_MSK_OUT(x) (GPIO_REG(x) + 0X820) -#define GPIO_MSK_INT_STA(x) (GPIO_REG(x) + 0x840) -#define GPIO_MSK_INT_ENB(x) (GPIO_REG(x) + 0x850) -#define GPIO_MSK_INT_LVL(x) (GPIO_REG(x) + 0x860) +#define GPIO_MSK_CNF(x) (GPIO_REG(x) + tegra_gpio_upper_offset + 0x00) +#define GPIO_MSK_OE(x) (GPIO_REG(x) + tegra_gpio_upper_offset + 0x10) +#define GPIO_MSK_OUT(x) (GPIO_REG(x) + tegra_gpio_upper_offset + 0X20) +#define GPIO_MSK_INT_STA(x) (GPIO_REG(x) + tegra_gpio_upper_offset + 0x40) +#define GPIO_MSK_INT_ENB(x) (GPIO_REG(x) + tegra_gpio_upper_offset + 0x50) +#define GPIO_MSK_INT_LVL(x) (GPIO_REG(x) + tegra_gpio_upper_offset + 0x60) #define GPIO_INT_LVL_MASK 0x010101 #define GPIO_INT_LVL_EDGE_RISING 0x000101 @@ -78,6 +79,8 @@ struct tegra_gpio_bank { static struct irq_domain *irq_domain; static void __iomem *regs; static u32 tegra_gpio_bank_count; +static u32 tegra_gpio_bank_stride; +static u32 tegra_gpio_upper_offset; static struct tegra_gpio_bank *tegra_gpio_banks; static inline void tegra_gpio_writel(u32 val, u32 reg) @@ -333,6 +336,26 @@ static struct irq_chip tegra_gpio_irq_chip = { #endif }; +struct tegra_gpio_soc_config { + u32 bank_stride; + u32 upper_offset; +}; + +static struct tegra_gpio_soc_config tegra20_gpio_config = { + .bank_stride = 0x80, + .upper_offset = 0x800, +}; + +static struct tegra_gpio_soc_config tegra30_gpio_config = { + .bank_stride = 0x100, + .upper_offset = 0x80, +}; + +static struct of_device_id tegra_gpio_of_match[] __devinitdata = { + { .compatible = "nvidia,tegra30-gpio", .data = &tegra30_gpio_config }, + { .compatible = "nvidia,tegra20-gpio", .data = &tegra20_gpio_config }, + { }, +}; /* This lock class tells lockdep that GPIO irqs are in a different * category than their parents, so it won't report false recursion. @@ -341,6 +364,8 @@ static struct lock_class_key gpio_lock_class; static int __devinit tegra_gpio_probe(struct platform_device *pdev) { + const struct of_device_id *match; + struct tegra_gpio_soc_config *config; int irq_base; struct resource *res; struct tegra_gpio_bank *bank; @@ -348,6 +373,15 @@ static int __devinit tegra_gpio_probe(struct platform_device *pdev) int i; int j; + match = of_match_device(tegra_gpio_of_match, &pdev->dev); + if (match) + config = (struct tegra_gpio_soc_config *)match->data; + else + config = &tegra20_gpio_config; + + tegra_gpio_bank_stride = config->bank_stride; + tegra_gpio_upper_offset = config->upper_offset; + for (;;) { res = platform_get_resource(pdev, IORESOURCE_IRQ, tegra_gpio_bank_count); if (!res) @@ -441,11 +475,6 @@ static int __devinit tegra_gpio_probe(struct platform_device *pdev) return 0; } -static struct of_device_id tegra_gpio_of_match[] __devinitdata = { - { .compatible = "nvidia,tegra20-gpio", }, - { }, -}; - static struct platform_driver tegra_gpio_driver = { .driver = { .name = "tegra-gpio", -- cgit v0.10.2 From 4a3398ee9d7d8008ee9bfc8a600b734a1b22af23 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Fri, 16 Mar 2012 17:37:24 -0600 Subject: gpio: tegra: Iterate over the correct number of banks When Tegra30 support was added to the Tegra GPIO driver, a few places which iterated over all banks were not converted to use the variable tegra_gpio_bank_count rather than hard-coding the bank count. Fix this. Signed-off-by: Stephen Warren Acked-by: Olof Johansson diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c index 7d05a34..12f349b3 100644 --- a/drivers/gpio/gpio-tegra.c +++ b/drivers/gpio/gpio-tegra.c @@ -436,7 +436,7 @@ static int __devinit tegra_gpio_probe(struct platform_device *pdev) return -ENODEV; } - for (i = 0; i < 7; i++) { + for (i = 0; i < tegra_gpio_bank_count; i++) { for (j = 0; j < 4; j++) { int gpio = tegra_gpio_compose(i, j, 0); tegra_gpio_writel(0x00, GPIO_INT_ENB(gpio)); @@ -514,7 +514,7 @@ static int dbg_gpio_show(struct seq_file *s, void *unused) int i; int j; - for (i = 0; i < 7; i++) { + for (i = 0; i < tegra_gpio_bank_count; i++) { for (j = 0; j < 4; j++) { int gpio = tegra_gpio_compose(i, j, 0); seq_printf(s, -- cgit v0.10.2 From 8b8c3c7895dc8dcf60c58b23bc9231f4ee7887a2 Mon Sep 17 00:00:00 2001 From: Santosh Shilimkar Date: Mon, 12 Mar 2012 20:04:32 +0530 Subject: ARM: OMAP2+: powerdomain: Wait for powerdomain transition in pwrdm_state_switch() Commit b1cbdb00d ("OMAP: clockdomain: Wait for powerdomain to be ON when using clockdomain force wakeup") was assuming that pwrdm_state_switch() does wait for the powerdomain transition which is not the case. The missing wait for the powerdomain transition violates the sequence which the hardware expects, which causes power management failures on some devices. Fix this API by adding the pwrdm_wait_transition(). Signed-off-by: Santosh Shilimkar Cc: Rajendra Nayak Cc: Paul Walmsley [paul@pwsan.com: added some more details in the commit log] Signed-off-by: Paul Walmsley diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c index 8a18d1b..96ad3dbe 100644 --- a/arch/arm/mach-omap2/powerdomain.c +++ b/arch/arm/mach-omap2/powerdomain.c @@ -972,7 +972,13 @@ int pwrdm_wait_transition(struct powerdomain *pwrdm) int pwrdm_state_switch(struct powerdomain *pwrdm) { - return _pwrdm_state_switch(pwrdm, PWRDM_STATE_NOW); + int ret; + + ret = pwrdm_wait_transition(pwrdm); + if (!ret) + ret = _pwrdm_state_switch(pwrdm, PWRDM_STATE_NOW); + + return ret; } int pwrdm_clkdm_state_switch(struct clockdomain *clkdm) -- cgit v0.10.2 From 91a290c4573679a70e242495ac3dbf12b39fb108 Mon Sep 17 00:00:00 2001 From: Ameya Palande Date: Wed, 4 Apr 2012 10:19:31 -0600 Subject: ARM: OMAP4: clock data: fix mult and div mask for USB_DPLL According to OMAP4 TRM Table 3-1183, CM_CLKSEL_DPLL_USB register defines following fields for multiplication and division factors: DPLL_MULT (bits 19:8) DPLL multiplier factor (2 to 4095) DPLL_DIV (bits 7:0) DPLL divider factor (0 to 255) Acked-by: Benoit Cousson Signed-off-by: Ameya Palande Signed-off-by: Paul Walmsley diff --git a/arch/arm/mach-omap2/clock44xx_data.c b/arch/arm/mach-omap2/clock44xx_data.c index c03c110..984904f 100644 --- a/arch/arm/mach-omap2/clock44xx_data.c +++ b/arch/arm/mach-omap2/clock44xx_data.c @@ -957,8 +957,8 @@ static struct dpll_data dpll_usb_dd = { .modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED), .autoidle_reg = OMAP4430_CM_AUTOIDLE_DPLL_USB, .idlest_reg = OMAP4430_CM_IDLEST_DPLL_USB, - .mult_mask = OMAP4430_DPLL_MULT_MASK, - .div1_mask = OMAP4430_DPLL_DIV_MASK, + .mult_mask = OMAP4430_DPLL_MULT_USB_MASK, + .div1_mask = OMAP4430_DPLL_DIV_0_7_MASK, .enable_mask = OMAP4430_DPLL_EN_MASK, .autoidle_mask = OMAP4430_AUTO_DPLL_MODE_MASK, .idlest_mask = OMAP4430_ST_DPLL_CLK_MASK, -- cgit v0.10.2 From 6c4a057bffe9823221eab547e11fac181dc18a2b Mon Sep 17 00:00:00 2001 From: Rajendra Nayak Date: Wed, 4 Apr 2012 10:20:01 -0600 Subject: ARM: OMAP4: clock data: Force a DPLL clkdm/pwrdm ON before a relock All DPLLs except USB are in ALWON powerdomain. Make sure the clkdm/pwrdm for USB DPLL (l3init) is turned on before attempting a DPLL relock. So, mark the database accordingly. Without this fix, it was seen that DPLL relock fails while testing relock in a loop of USB DPLL. Cc: Nishanth Menon Tested-by: Ameya Palande Signed-off-by: Rajendra Nayak Signed-off-by: Paul Walmsley diff --git a/arch/arm/mach-omap2/clock44xx_data.c b/arch/arm/mach-omap2/clock44xx_data.c index 984904f..fa6ea65 100644 --- a/arch/arm/mach-omap2/clock44xx_data.c +++ b/arch/arm/mach-omap2/clock44xx_data.c @@ -978,6 +978,7 @@ static struct clk dpll_usb_ck = { .recalc = &omap3_dpll_recalc, .round_rate = &omap2_dpll_round_rate, .set_rate = &omap3_noncore_dpll_set_rate, + .clkdm_name = "l3_init_clkdm", }; static struct clk dpll_usb_clkdcoldo_ck = { -- cgit v0.10.2 From 5897a391d41d42f19285376a4ad1320d452c2946 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Wed, 4 Apr 2012 10:20:15 -0600 Subject: ARM: OMAP3: clock data: fill in some missing clockdomains Several clocks are missing clockdomains. This can cause problems with the hwmod and power management code. Fill these in. Signed-off-by: Paul Walmsley Cc: Matt Porter Cc: Vaibhav Hiremath diff --git a/arch/arm/mach-omap2/clock3xxx_data.c b/arch/arm/mach-omap2/clock3xxx_data.c index f3a9a4a..f4a626f 100644 --- a/arch/arm/mach-omap2/clock3xxx_data.c +++ b/arch/arm/mach-omap2/clock3xxx_data.c @@ -1394,6 +1394,7 @@ static struct clk cpefuse_fck = { .name = "cpefuse_fck", .ops = &clkops_omap2_dflt, .parent = &sys_ck, + .clkdm_name = "core_l4_clkdm", .enable_reg = OMAP_CM_REGADDR(CORE_MOD, OMAP3430ES2_CM_FCLKEN3), .enable_bit = OMAP3430ES2_EN_CPEFUSE_SHIFT, .recalc = &followparent_recalc, @@ -1403,6 +1404,7 @@ static struct clk ts_fck = { .name = "ts_fck", .ops = &clkops_omap2_dflt, .parent = &omap_32k_fck, + .clkdm_name = "core_l4_clkdm", .enable_reg = OMAP_CM_REGADDR(CORE_MOD, OMAP3430ES2_CM_FCLKEN3), .enable_bit = OMAP3430ES2_EN_TS_SHIFT, .recalc = &followparent_recalc, @@ -1412,6 +1414,7 @@ static struct clk usbtll_fck = { .name = "usbtll_fck", .ops = &clkops_omap2_dflt_wait, .parent = &dpll5_m2_ck, + .clkdm_name = "core_l4_clkdm", .enable_reg = OMAP_CM_REGADDR(CORE_MOD, OMAP3430ES2_CM_FCLKEN3), .enable_bit = OMAP3430ES2_EN_USBTLL_SHIFT, .recalc = &followparent_recalc, @@ -1617,6 +1620,7 @@ static struct clk fshostusb_fck = { .name = "fshostusb_fck", .ops = &clkops_omap2_dflt_wait, .parent = &core_48m_fck, + .clkdm_name = "core_l4_clkdm", .enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_FCLKEN1), .enable_bit = OMAP3430ES1_EN_FSHOSTUSB_SHIFT, .recalc = &followparent_recalc, @@ -2043,6 +2047,7 @@ static struct clk omapctrl_ick = { .enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_ICLKEN1), .enable_bit = OMAP3430_EN_OMAPCTRL_SHIFT, .flags = ENABLE_ON_INIT, + .clkdm_name = "core_l4_clkdm", .recalc = &followparent_recalc, }; @@ -2094,6 +2099,7 @@ static struct clk usb_l4_ick = { .clksel_reg = OMAP_CM_REGADDR(CORE_MOD, CM_CLKSEL), .clksel_mask = OMAP3430ES1_CLKSEL_FSHOSTUSB_MASK, .clksel = usb_l4_clksel, + .clkdm_name = "core_l4_clkdm", .recalc = &omap2_clksel_recalc, }; -- cgit v0.10.2 From acdd5985364f8dc511a0762fab2e683f29d9d692 Mon Sep 17 00:00:00 2001 From: Thomas Graf Date: Tue, 3 Apr 2012 22:17:53 +0000 Subject: sctp: Allow struct sctp_event_subscribe to grow without breaking binaries getsockopt(..., SCTP_EVENTS, ...) performs a length check and returns an error if the user provides less bytes than the size of struct sctp_event_subscribe. Struct sctp_event_subscribe needs to be extended by an u8 for every new event or notification type that is added. This obviously makes getsockopt fail for binaries that are compiled against an older versions of which do not contain all event types. This patch changes getsockopt behaviour to no longer return an error if not enough bytes are being provided by the user. Instead, it returns as much of sctp_event_subscribe as fits into the provided buffer. This leads to the new behavior that users see what they have been aware of at compile time. The setsockopt(..., SCTP_EVENTS, ...) API is already behaving like this. Signed-off-by: Thomas Graf Acked-by: Vlad Yasevich Signed-off-by: David S. Miller diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 06b42b7..92ba71d 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -4133,9 +4133,10 @@ static int sctp_getsockopt_disable_fragments(struct sock *sk, int len, static int sctp_getsockopt_events(struct sock *sk, int len, char __user *optval, int __user *optlen) { - if (len < sizeof(struct sctp_event_subscribe)) + if (len <= 0) return -EINVAL; - len = sizeof(struct sctp_event_subscribe); + if (len > sizeof(struct sctp_event_subscribe)) + len = sizeof(struct sctp_event_subscribe); if (put_user(len, optlen)) return -EFAULT; if (copy_to_user(optval, &sctp_sk(sk)->subscribe, len)) -- cgit v0.10.2 From 2af73d4b2afe826d23e83f3747f850eefbd867ff Mon Sep 17 00:00:00 2001 From: Shlomo Pongratz Date: Tue, 3 Apr 2012 22:56:19 +0000 Subject: net/bonding: emit address change event also in bond_release commit 7d26bb103c4 "bonding: emit event when bonding changes MAC" didn't take care to emit the NETDEV_CHANGEADDR event in bond_release, where bonding actually changes the mac address (to all zeroes). As a result the neighbours aren't deleted by the core networking code (which does so upon getting that event). Signed-off-by: Shlomo Pongratz Signed-off-by: Jay Vosburgh Signed-off-by: David S. Miller diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 941b4e1..5cb85cb 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -2034,6 +2034,9 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev) write_unlock_bh(&bond->lock); unblock_netpoll_tx(); + if (bond->slave_cnt == 0) + call_netdevice_notifiers(NETDEV_CHANGEADDR, bond->dev); + bond_compute_features(bond); if (!(bond_dev->features & NETIF_F_VLAN_CHALLENGED) && (old_features & NETIF_F_VLAN_CHALLENGED)) -- cgit v0.10.2 From 234bcf8a499ee206145c7007d12d9706a254f790 Mon Sep 17 00:00:00 2001 From: Shlomo Pongratz Date: Tue, 3 Apr 2012 22:56:20 +0000 Subject: net/bonding: correctly proxy slave neigh param setup ndo function The current implemenation was buggy for slaves who use ndo_neigh_setup, since the networking stack invokes the bonding device ndo entry (from neigh_params_alloc) before any devices are enslaved, and the bonding driver can't further delegate the call at that point in time. As a result when bonding IPoIB devices, the neigh_cleanup hasn't been called. Fix that by deferring the actual call into the slave ndo_neigh_setup from the time the bonding neigh_setup is called. Signed-off-by: Shlomo Pongratz Signed-off-by: Jay Vosburgh Signed-off-by: David S. Miller diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 5cb85cb..fc8a8d5 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -3704,17 +3704,52 @@ static void bond_set_multicast_list(struct net_device *bond_dev) read_unlock(&bond->lock); } -static int bond_neigh_setup(struct net_device *dev, struct neigh_parms *parms) +static int bond_neigh_init(struct neighbour *n) { - struct bonding *bond = netdev_priv(dev); + struct bonding *bond = netdev_priv(n->dev); struct slave *slave = bond->first_slave; + const struct net_device_ops *slave_ops; + struct neigh_parms parms; + int ret; + + if (!slave) + return 0; + + slave_ops = slave->dev->netdev_ops; + + if (!slave_ops->ndo_neigh_setup) + return 0; + + parms.neigh_setup = NULL; + parms.neigh_cleanup = NULL; + ret = slave_ops->ndo_neigh_setup(slave->dev, &parms); + if (ret) + return ret; + + /* + * Assign slave's neigh_cleanup to neighbour in case cleanup is called + * after the last slave has been detached. Assumes that all slaves + * utilize the same neigh_cleanup (true at this writing as only user + * is ipoib). + */ + n->parms->neigh_cleanup = parms.neigh_cleanup; + + if (!parms.neigh_setup) + return 0; + + return parms.neigh_setup(n); +} + +/* + * The bonding ndo_neigh_setup is called at init time beofre any + * slave exists. So we must declare proxy setup function which will + * be used at run time to resolve the actual slave neigh param setup. + */ +static int bond_neigh_setup(struct net_device *dev, + struct neigh_parms *parms) +{ + parms->neigh_setup = bond_neigh_init; - if (slave) { - const struct net_device_ops *slave_ops - = slave->dev->netdev_ops; - if (slave_ops->ndo_neigh_setup) - return slave_ops->ndo_neigh_setup(slave->dev, parms); - } return 0; } -- cgit v0.10.2 From 857504d06d565ad5b401d505937932775ddf1c47 Mon Sep 17 00:00:00 2001 From: stephen hemminger Date: Wed, 4 Apr 2012 12:10:27 +0000 Subject: sky2: copy received packets on inefficient unaligned architecture Modified from original patch from Chris. The sky2 driver has to have 8 byte alignment of receive buffer on some chip versions. On architectures which don't support efficient unaligned access this doesn't work very well. The solution is to just copy all received packets which is what the driver already does for small packets. This allows the driver to be used on the Tilera TILEmpower-Gx, since the tile architecture doesn't currently handle kernel unaligned accesses, just userspace. Signed-off-by: Stephen Hemminger Acked-by: Chris Metcalf Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c index b806d9b..c9b504e 100644 --- a/drivers/net/ethernet/marvell/sky2.c +++ b/drivers/net/ethernet/marvell/sky2.c @@ -2469,6 +2469,17 @@ static int sky2_change_mtu(struct net_device *dev, int new_mtu) return err; } +static inline bool needs_copy(const struct rx_ring_info *re, + unsigned length) +{ +#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS + /* Some architectures need the IP header to be aligned */ + if (!IS_ALIGNED(re->data_addr + ETH_HLEN, sizeof(u32))) + return true; +#endif + return length < copybreak; +} + /* For small just reuse existing skb for next receive */ static struct sk_buff *receive_copy(struct sky2_port *sky2, const struct rx_ring_info *re, @@ -2599,7 +2610,7 @@ static struct sk_buff *sky2_receive(struct net_device *dev, goto error; okay: - if (length < copybreak) + if (needs_copy(re, length)) skb = receive_copy(sky2, re, length); else skb = receive_new(sky2, re, length); -- cgit v0.10.2 From c04c1b9ee8f30c7a3a25e20e406247003f634ebe Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Wed, 4 Apr 2012 15:48:33 -0600 Subject: regmap: prevent division by zero in rbtree_show If there are no nodes in the cache, nodes will be 0, so calculating "registers / nodes" will cause division by zero. Signed-off-by: Stephen Warren Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c index 5157fa0..ea76a90 100644 --- a/drivers/base/regmap/regcache-rbtree.c +++ b/drivers/base/regmap/regcache-rbtree.c @@ -138,6 +138,7 @@ static int rbtree_show(struct seq_file *s, void *ignored) unsigned int base, top; int nodes = 0; int registers = 0; + int average; mutex_lock(&map->lock); @@ -152,8 +153,13 @@ static int rbtree_show(struct seq_file *s, void *ignored) registers += top - base + 1; } + if (nodes) + average = registers / nodes; + else + average = 0; + seq_printf(s, "%d nodes, %d registers, average %d registers\n", - nodes, registers, registers / nodes); + nodes, registers, average); mutex_unlock(&map->lock); -- cgit v0.10.2 From 27d9129f5ae830cc031a898e0c220e1cdda69b34 Mon Sep 17 00:00:00 2001 From: Yaniv Rosner Date: Wed, 4 Apr 2012 01:28:54 +0000 Subject: bnx2x: PFC fix Fix a problem in which PFC frames are not honored, due to incorrect link attributes synchronization following PMF migration, and verify PFC XON is not stuck from previous link change. Signed-off-by: Yaniv Rosner Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index efa557b..7e2ebba 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -1371,7 +1371,14 @@ static void bnx2x_update_pfc_xmac(struct link_params *params, pfc1_val |= XMAC_PFC_CTRL_HI_REG_PFC_REFRESH_EN | XMAC_PFC_CTRL_HI_REG_PFC_STATS_EN | XMAC_PFC_CTRL_HI_REG_RX_PFC_EN | - XMAC_PFC_CTRL_HI_REG_TX_PFC_EN; + XMAC_PFC_CTRL_HI_REG_TX_PFC_EN | + XMAC_PFC_CTRL_HI_REG_FORCE_PFC_XON; + /* Write pause and PFC registers */ + REG_WR(bp, xmac_base + XMAC_REG_PAUSE_CTRL, pause_val); + REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL, pfc0_val); + REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL_HI, pfc1_val); + pfc1_val &= ~XMAC_PFC_CTRL_HI_REG_FORCE_PFC_XON; + } /* Write pause and PFC registers */ @@ -6843,6 +6850,12 @@ int bnx2x_link_update(struct link_params *params, struct link_vars *vars) SINGLE_MEDIA_DIRECT(params)) && (phy_vars[active_external_phy].fault_detected == 0)); + /* Update the PFC configuration in case it was changed */ + if (params->feature_config_flags & FEATURE_CONFIG_PFC_ENABLED) + vars->link_status |= LINK_STATUS_PFC_ENABLED; + else + vars->link_status &= ~LINK_STATUS_PFC_ENABLED; + if (vars->link_up) rc = bnx2x_update_link_up(params, vars, link_10g_plus); else @@ -12049,6 +12062,9 @@ int bnx2x_phy_init(struct link_params *params, struct link_vars *vars) bnx2x_emac_init(params, vars); + if (params->feature_config_flags & FEATURE_CONFIG_PFC_ENABLED) + vars->link_status |= LINK_STATUS_PFC_ENABLED; + if (params->num_phys == 0) { DP(NETIF_MSG_LINK, "No phy found for initialization !!\n"); return -EINVAL; diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h index ab0a250..ecc7fa6 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h @@ -5354,6 +5354,7 @@ #define XMAC_CTRL_REG_TX_EN (0x1<<0) #define XMAC_PAUSE_CTRL_REG_RX_PAUSE_EN (0x1<<18) #define XMAC_PAUSE_CTRL_REG_TX_PAUSE_EN (0x1<<17) +#define XMAC_PFC_CTRL_HI_REG_FORCE_PFC_XON (0x1<<1) #define XMAC_PFC_CTRL_HI_REG_PFC_REFRESH_EN (0x1<<0) #define XMAC_PFC_CTRL_HI_REG_PFC_STATS_EN (0x1<<3) #define XMAC_PFC_CTRL_HI_REG_RX_PFC_EN (0x1<<4) -- cgit v0.10.2 From ca05f29cf515ac4a8e162c8e0eee886727f5dcc7 Mon Sep 17 00:00:00 2001 From: Yaniv Rosner Date: Wed, 4 Apr 2012 01:28:55 +0000 Subject: bnx2x: Fix BCM57810-KR FC Fix 57810-KR flow-control handling link is achieved via CL37 AN. Signed-off-by: Yaniv Rosner Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index 7e2ebba..8c00bbc 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -3655,6 +3655,33 @@ static void bnx2x_ext_phy_update_adv_fc(struct bnx2x_phy *phy, if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE) { bnx2x_cl22_read(bp, phy, 0x4, &ld_pause); bnx2x_cl22_read(bp, phy, 0x5, &lp_pause); + } else if (CHIP_IS_E3(bp) && + SINGLE_MEDIA_DIRECT(params)) { + u8 lane = bnx2x_get_warpcore_lane(phy, params); + u16 gp_status, gp_mask; + bnx2x_cl45_read(bp, phy, + MDIO_AN_DEVAD, MDIO_WC_REG_GP2_STATUS_GP_2_4, + &gp_status); + gp_mask = (MDIO_WC_REG_GP2_STATUS_GP_2_4_CL73_AN_CMPL | + MDIO_WC_REG_GP2_STATUS_GP_2_4_CL37_LP_AN_CAP) << + lane; + if ((gp_status & gp_mask) == gp_mask) { + bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD, + MDIO_AN_REG_ADV_PAUSE, &ld_pause); + bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD, + MDIO_AN_REG_LP_AUTO_NEG, &lp_pause); + } else { + bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD, + MDIO_AN_REG_CL37_FC_LD, &ld_pause); + bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD, + MDIO_AN_REG_CL37_FC_LP, &lp_pause); + ld_pause = ((ld_pause & + MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) + << 3); + lp_pause = ((lp_pause & + MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) + << 3); + } } else { bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD, diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h index ecc7fa6..1ea2b95 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h @@ -6944,6 +6944,10 @@ Theotherbitsarereservedandshouldbezero*/ #define MDIO_WC_REG_GP2_STATUS_GP_2_2 0x81d2 #define MDIO_WC_REG_GP2_STATUS_GP_2_3 0x81d3 #define MDIO_WC_REG_GP2_STATUS_GP_2_4 0x81d4 +#define MDIO_WC_REG_GP2_STATUS_GP_2_4_CL73_AN_CMPL 0x1000 +#define MDIO_WC_REG_GP2_STATUS_GP_2_4_CL37_AN_CMPL 0x0100 +#define MDIO_WC_REG_GP2_STATUS_GP_2_4_CL37_LP_AN_CAP 0x0010 +#define MDIO_WC_REG_GP2_STATUS_GP_2_4_CL37_AN_CAP 0x1 #define MDIO_WC_REG_UC_INFO_B0_DEAD_TRAP 0x81EE #define MDIO_WC_REG_UC_INFO_B1_VERSION 0x81F0 #define MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE 0x81F2 -- cgit v0.10.2 From 6a51c0d17b8fb6ae300ba5bc42a020160944e1b2 Mon Sep 17 00:00:00 2001 From: Yaniv Rosner Date: Wed, 4 Apr 2012 01:28:56 +0000 Subject: bnx2x: Fix BCM57810-KR AN speed transition BCM57810-KR link may not come up in 1G after running loopback test, so set the relevant registers to their default values before starting KR autoneg. Signed-off-by: Yaniv Rosner Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index 8c00bbc..ce0b0c2 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -3732,7 +3732,23 @@ static void bnx2x_warpcore_enable_AN_KR(struct bnx2x_phy *phy, u16 val16 = 0, lane, bam37 = 0; struct bnx2x *bp = params->bp; DP(NETIF_MSG_LINK, "Enable Auto Negotiation for KR\n"); - + /* Set to default registers that may be overriden by 10G force */ + bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD, + MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, 0x7); + bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, + MDIO_WC_REG_PAR_DET_10G_CTRL, 0); + bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD, + MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL, 0); + bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD, + MDIO_WC_REG_XGXSBLK1_LANECTRL0, 0xff); + bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD, + MDIO_WC_REG_XGXSBLK1_LANECTRL1, 0x5555); + bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, + MDIO_WC_REG_IEEE0BLK_AUTONEGNP, 0x0); + bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD, + MDIO_WC_REG_RX66_CONTROL, 0x7415); + bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD, + MDIO_WC_REG_SERDESDIGITAL_MISC2, 0x6190); /* Disable Autoneg: re-enable it after adv is done. */ bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_WC_REG_IEEE0BLK_MIICNTL, 0); @@ -4402,7 +4418,7 @@ static void bnx2x_warpcore_config_init(struct bnx2x_phy *phy, switch (serdes_net_if) { case PORT_HW_CFG_NET_SERDES_IF_KR: /* Enable KR Auto Neg */ - if (params->loopback_mode == LOOPBACK_NONE) + if (params->loopback_mode != LOOPBACK_EXT) bnx2x_warpcore_enable_AN_KR(phy, params, vars); else { DP(NETIF_MSG_LINK, "Setting KR 10G-Force\n"); -- cgit v0.10.2 From 25182fc22237f0fb1789c7ac9a79e871a1898ae5 Mon Sep 17 00:00:00 2001 From: Yaniv Rosner Date: Wed, 4 Apr 2012 01:28:57 +0000 Subject: bnx2x: Fix BCM578x0-SFI pre-emphasis settings Fix 578x0-SFI pre-emphasis settings per HW recommendations to achieve better link strength. Signed-off-by: Yaniv Rosner Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index ce0b0c2..1e2fea3 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -3994,13 +3994,13 @@ static void bnx2x_warpcore_set_10G_XFI(struct bnx2x_phy *phy, } else { misc1_val |= 0x9; - tap_val = ((0x12 << MDIO_WC_REG_TX_FIR_TAP_POST_TAP_OFFSET) | - (0x2d << MDIO_WC_REG_TX_FIR_TAP_MAIN_TAP_OFFSET) | - (0x00 << MDIO_WC_REG_TX_FIR_TAP_PRE_TAP_OFFSET)); + tap_val = ((0x0f << MDIO_WC_REG_TX_FIR_TAP_POST_TAP_OFFSET) | + (0x2b << MDIO_WC_REG_TX_FIR_TAP_MAIN_TAP_OFFSET) | + (0x02 << MDIO_WC_REG_TX_FIR_TAP_PRE_TAP_OFFSET)); tx_driver_val = - ((0x02 << MDIO_WC_REG_TX0_TX_DRIVER_POST2_COEFF_OFFSET) | + ((0x03 << MDIO_WC_REG_TX0_TX_DRIVER_POST2_COEFF_OFFSET) | (0x02 << MDIO_WC_REG_TX0_TX_DRIVER_IDRIVER_OFFSET) | - (0x02 << MDIO_WC_REG_TX0_TX_DRIVER_IPRE_DRIVER_OFFSET)); + (0x06 << MDIO_WC_REG_TX0_TX_DRIVER_IPRE_DRIVER_OFFSET)); } bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_MISC1, misc1_val); -- cgit v0.10.2 From 9379c9be4b20d5cb7bde577f402b749cd7d3caa2 Mon Sep 17 00:00:00 2001 From: Yaniv Rosner Date: Wed, 4 Apr 2012 01:28:58 +0000 Subject: bnx2x: Restore 1G LED on BCM57712+BCM8727 designs. Fix no-LED problem when link speed is 1G on BCM57712 + BCM8727 designs, by removing a logic error checking for a different PHY. Signed-off-by: Yaniv Rosner Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index 1e2fea3..1438da8 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -6216,12 +6216,14 @@ int bnx2x_set_led(struct link_params *params, tmp = EMAC_RD(bp, EMAC_REG_EMAC_LED); if (params->phy[EXT_PHY1].type == - PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE) - EMAC_WR(bp, EMAC_REG_EMAC_LED, tmp & 0xfff1); - else { - EMAC_WR(bp, EMAC_REG_EMAC_LED, - (tmp | EMAC_LED_OVERRIDE)); - } + PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE) + tmp &= ~(EMAC_LED_1000MB_OVERRIDE | + EMAC_LED_100MB_OVERRIDE | + EMAC_LED_10MB_OVERRIDE); + else + tmp |= EMAC_LED_OVERRIDE; + + EMAC_WR(bp, EMAC_REG_EMAC_LED, tmp); break; case LED_MODE_OPER: @@ -6276,10 +6278,15 @@ int bnx2x_set_led(struct link_params *params, hw_led_mode); } else if ((params->phy[EXT_PHY1].type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE) && - (mode != LED_MODE_OPER)) { + (mode == LED_MODE_ON)) { REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4, 0); tmp = EMAC_RD(bp, EMAC_REG_EMAC_LED); - EMAC_WR(bp, EMAC_REG_EMAC_LED, tmp | 0x3); + EMAC_WR(bp, EMAC_REG_EMAC_LED, tmp | + EMAC_LED_OVERRIDE | EMAC_LED_1000MB_OVERRIDE); + /* Break here; otherwise, it'll disable the + * intended override. + */ + break; } else REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4, hw_led_mode); @@ -6294,13 +6301,9 @@ int bnx2x_set_led(struct link_params *params, LED_BLINK_RATE_VAL_E1X_E2); REG_WR(bp, NIG_REG_LED_CONTROL_BLINK_RATE_ENA_P0 + port*4, 1); - if ((params->phy[EXT_PHY1].type != - PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE) && - (mode != LED_MODE_OPER)) { - tmp = EMAC_RD(bp, EMAC_REG_EMAC_LED); - EMAC_WR(bp, EMAC_REG_EMAC_LED, - (tmp & (~EMAC_LED_OVERRIDE))); - } + tmp = EMAC_RD(bp, EMAC_REG_EMAC_LED); + EMAC_WR(bp, EMAC_REG_EMAC_LED, + (tmp & (~EMAC_LED_OVERRIDE))); if (CHIP_IS_E1(bp) && ((speed == SPEED_2500) || -- cgit v0.10.2 From 59a2e53b826103be8c22d9820355320b749b38ef Mon Sep 17 00:00:00 2001 From: Yaniv Rosner Date: Wed, 4 Apr 2012 01:28:59 +0000 Subject: bnx2x: Fix link issue for BCM8727 boards. This patch fixes a link problem on BCM57712 + BCM8727 designs in which the TX laser is controller by GPIO, after 1.60.xx drivers were previously loaded. On these designs the TX_LASER is enabled by logic AND between the PHY (through MDIO), and the GPIO. When an old driver is used, it disables the MDIO part, hence the GPIO control had no affect de facto. Signed-off-by: Yaniv Rosner Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index 1438da8..732b4c8 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -8089,7 +8089,9 @@ static int bnx2x_verify_sfp_module(struct bnx2x_phy *phy, netdev_err(bp->dev, "Warning: Unqualified SFP+ module detected," " Port %d from %s part number %s\n", params->port, vendor_name, vendor_pn); - phy->flags |= FLAGS_SFP_NOT_APPROVED; + if ((val & PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_MASK) != + PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_WARNING_MSG) + phy->flags |= FLAGS_SFP_NOT_APPROVED; return -EINVAL; } @@ -9149,6 +9151,12 @@ static int bnx2x_8727_config_init(struct bnx2x_phy *phy, tmp2 &= 0xFFEF; bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_OPT_CFG_REG, tmp2); + bnx2x_cl45_read(bp, phy, + MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER, + &tmp2); + bnx2x_cl45_write(bp, phy, + MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER, + (tmp2 & 0x7fff)); } return 0; @@ -9329,12 +9337,11 @@ static u8 bnx2x_8727_read_status(struct bnx2x_phy *phy, MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL, ((1<<5) | (1<<2))); } - DP(NETIF_MSG_LINK, "Enabling 8727 TX laser if SFP is approved\n"); - bnx2x_8727_specific_func(phy, params, ENABLE_TX); - /* If transmitter is disabled, ignore false link up indication */ - bnx2x_cl45_read(bp, phy, - MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER, &val1); - if (val1 & (1<<15)) { + + if (!(phy->flags & FLAGS_SFP_NOT_APPROVED)) { + DP(NETIF_MSG_LINK, "Enabling 8727 TX laser\n"); + bnx2x_sfp_set_transmitter(params, phy, 1); + } else { DP(NETIF_MSG_LINK, "Tx is disabled\n"); return 0; } -- cgit v0.10.2 From 8267bbb01f005fa8d0c8d046ecc24ae0b52e4d70 Mon Sep 17 00:00:00 2001 From: Yaniv Rosner Date: Wed, 4 Apr 2012 01:29:00 +0000 Subject: bnx2x: Fix BCM84833 PHY FW version presentation Signed-off-by: Yaniv Rosner Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index 732b4c8..b576a3a 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -9435,8 +9435,7 @@ static void bnx2x_save_848xx_spirom_version(struct bnx2x_phy *phy, if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) { bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD, 0x400f, &fw_ver1); - bnx2x_save_spirom_version(bp, port, - ((fw_ver1 & 0xf000)>>5) | (fw_ver1 & 0x7f), + bnx2x_save_spirom_version(bp, port, fw_ver1 & 0xfff, phy->ver_addr); } else { /* For 32-bit registers in 848xx, access via MDIO2ARM i/f. */ -- cgit v0.10.2 From 99bf7f34368aac9b54dfa8801ae490a2326704f9 Mon Sep 17 00:00:00 2001 From: Yaniv Rosner Date: Wed, 4 Apr 2012 01:29:01 +0000 Subject: bnx2x: Clear BCM84833 LED after fan failure Signed-off-by: Yaniv Rosner Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index b576a3a..ce95ef7 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -9858,6 +9858,15 @@ static int bnx2x_84833_hw_reset_phy(struct bnx2x_phy *phy, other_shmem_base_addr)); u32 shmem_base_path[2]; + + /* Work around for 84833 LED failure inside RESET status */ + bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, + MDIO_AN_REG_8481_LEGACY_MII_CTRL, + MDIO_AN_REG_8481_MII_CTRL_FORCE_1G); + bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, + MDIO_AN_REG_8481_1G_100T_EXT_CTRL, + MIDO_AN_REG_8481_EXT_CTRL_FORCE_LEDS_OFF); + shmem_base_path[0] = params->shmem_base; shmem_base_path[1] = other_shmem_base_addr; diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h index 1ea2b95..c25803b 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h @@ -6821,10 +6821,13 @@ Theotherbitsarereservedandshouldbezero*/ #define MDIO_AN_REG_8481_10GBASE_T_AN_CTRL 0x0020 #define MDIO_AN_REG_8481_LEGACY_MII_CTRL 0xffe0 +#define MDIO_AN_REG_8481_MII_CTRL_FORCE_1G 0x40 #define MDIO_AN_REG_8481_LEGACY_MII_STATUS 0xffe1 #define MDIO_AN_REG_8481_LEGACY_AN_ADV 0xffe4 #define MDIO_AN_REG_8481_LEGACY_AN_EXPANSION 0xffe6 #define MDIO_AN_REG_8481_1000T_CTRL 0xffe9 +#define MDIO_AN_REG_8481_1G_100T_EXT_CTRL 0xfff0 +#define MIDO_AN_REG_8481_EXT_CTRL_FORCE_LEDS_OFF 0x0008 #define MDIO_AN_REG_8481_EXPANSION_REG_RD_RW 0xfff5 #define MDIO_AN_REG_8481_EXPANSION_REG_ACCESS 0xfff7 #define MDIO_AN_REG_8481_AUX_CTRL 0xfff8 -- cgit v0.10.2 From f93fb01628c00d1f26e8b45d2f10b8feb650dd4b Mon Sep 17 00:00:00 2001 From: Yaniv Rosner Date: Wed, 4 Apr 2012 01:29:02 +0000 Subject: bnx2x: Fix BCM57711+BCM84823 link issue Fix a link problem on the second port of BCM57711 + BCM84823 boards due to incorrect macro usage. Signed-off-by: Yaniv Rosner Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index ce95ef7..7e41682 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -10177,7 +10177,7 @@ static void bnx2x_848x3_link_reset(struct bnx2x_phy *phy, u8 port; u16 val16; - if (!(CHIP_IS_E1(bp))) + if (!(CHIP_IS_E1x(bp))) port = BP_PATH(bp); else port = params->port; @@ -10204,7 +10204,7 @@ static void bnx2x_848xx_set_link_led(struct bnx2x_phy *phy, u16 val; u8 port; - if (!(CHIP_IS_E1(bp))) + if (!(CHIP_IS_E1x(bp))) port = BP_PATH(bp); else port = params->port; -- cgit v0.10.2 From ca7b91bbd1f150216e6354cc20818aa993f331f2 Mon Sep 17 00:00:00 2001 From: Yaniv Rosner Date: Wed, 4 Apr 2012 01:40:02 +0000 Subject: bnx2x: Clear MDC/MDIO warning message This patch clears a warning message of "MDC/MDIO access timeout" which may appear when interface is loaded due to missing clock setting before resetting the LED, and starting periodic function too early. Signed-off-by: Yaniv Rosner Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c index 44556b7..4b05481 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c @@ -1874,7 +1874,6 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode) * bnx2x_periodic_task(). */ smp_mb(); - queue_delayed_work(bnx2x_wq, &bp->period_task, 0); } else bp->port.pmf = 0; diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index 7e41682..ad95324 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -12205,10 +12205,10 @@ int bnx2x_link_reset(struct link_params *params, struct link_vars *vars, * Hold it as vars low */ /* clear link led */ + bnx2x_set_mdio_clk(bp, params->chip_id, port); bnx2x_set_led(params, vars, LED_MODE_OFF, 0); if (reset_ext_phy) { - bnx2x_set_mdio_clk(bp, params->chip_id, port); for (phy_index = EXT_PHY1; phy_index < params->num_phys; phy_index++) { if (params->phy[phy_index].link_reset) { -- cgit v0.10.2 From 03f2eecdfc8aadae395ac593c099006390c8085c Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Tue, 3 Apr 2012 22:13:01 +0000 Subject: stmmac: re-add IFF_UNICAST_FLT for dwmac1000 In commit (bfab27a stmmac: add the experimental PCI support) the IFF_UNICAST_FLT flag has been removed from the stmmac_mac_device_setup() function. This patch re-adds the flag. Signed-off-by: Marc Kleine-Budde Acked-by: Giuseppe Cavallaro Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index e85ffbd..48d56da 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -1737,10 +1737,12 @@ static int stmmac_hw_init(struct stmmac_priv *priv) struct mac_device_info *mac; /* Identify the MAC HW device */ - if (priv->plat->has_gmac) + if (priv->plat->has_gmac) { + priv->dev->priv_flags |= IFF_UNICAST_FLT; mac = dwmac1000_setup(priv->ioaddr); - else + } else { mac = dwmac100_setup(priv->ioaddr); + } if (!mac) return -ENOMEM; -- cgit v0.10.2 From 7358e51082b68e2026628220510a29197e2b9933 Mon Sep 17 00:00:00 2001 From: Kautuk Consul Date: Mon, 26 Mar 2012 06:40:49 +0000 Subject: sparc/mm/fault_64.c: Port OOM changes to do_sparc64_fault Commit d065bd810b6deb67d4897a14bfe21f8eb526ba99 (mm: retry page fault when blocking on disk transfer) and commit 37b23e0525d393d48a7d59f870b3bc061a30ccdb (x86,mm: make pagefault killable) The above commits introduced changes into the x86 pagefault handler for making the page fault handler retryable as well as killable. These changes reduce the mmap_sem hold time, which is crucial during OOM killer invocation. Port these changes to 64-bit sparc. Signed-off-by: Kautuk Consul Signed-off-by: David S. Miller diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c index 504c062..1fe0429 100644 --- a/arch/sparc/mm/fault_64.c +++ b/arch/sparc/mm/fault_64.c @@ -279,6 +279,7 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs) unsigned int insn = 0; int si_code, fault_code, fault; unsigned long address, mm_rss; + unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE; fault_code = get_thread_fault_code(); @@ -333,6 +334,8 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs) insn = get_fault_insn(regs, insn); goto handle_kernel_fault; } + +retry: down_read(&mm->mmap_sem); } @@ -423,7 +426,12 @@ good_area: goto bad_area; } - fault = handle_mm_fault(mm, vma, address, (fault_code & FAULT_CODE_WRITE) ? FAULT_FLAG_WRITE : 0); + flags |= ((fault_code & FAULT_CODE_WRITE) ? FAULT_FLAG_WRITE : 0); + fault = handle_mm_fault(mm, vma, address, flags); + + if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current)) + return; + if (unlikely(fault & VM_FAULT_ERROR)) { if (fault & VM_FAULT_OOM) goto out_of_memory; @@ -431,12 +439,27 @@ good_area: goto do_sigbus; BUG(); } - if (fault & VM_FAULT_MAJOR) { - current->maj_flt++; - perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, regs, address); - } else { - current->min_flt++; - perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, regs, address); + + if (flags & FAULT_FLAG_ALLOW_RETRY) { + if (fault & VM_FAULT_MAJOR) { + current->maj_flt++; + perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, + 1, regs, address); + } else { + current->min_flt++; + perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, + 1, regs, address); + } + if (fault & VM_FAULT_RETRY) { + flags &= ~FAULT_FLAG_ALLOW_RETRY; + + /* No need to up_read(&mm->mmap_sem) as we would + * have already released it in __lock_page_or_retry + * in mm/filemap.c. + */ + + goto retry; + } } up_read(&mm->mmap_sem); -- cgit v0.10.2 From c29554f53e4679d30f4eb39cad7700023cbaae67 Mon Sep 17 00:00:00 2001 From: Kautuk Consul Date: Mon, 26 Mar 2012 06:47:54 +0000 Subject: sparc/mm/fault_32.c: Port OOM changes to do_sparc_fault Commit d065bd810b6deb67d4897a14bfe21f8eb526ba99 (mm: retry page fault when blocking on disk transfer) and commit 37b23e0525d393d48a7d59f870b3bc061a30ccdb (x86,mm: make pagefault killable) The above commits introduced changes into the x86 pagefault handler for making the page fault handler retryable as well as killable. These changes reduce the mmap_sem hold time, which is crucial during OOM killer invocation. Port these changes to 32-bit sparc. Signed-off-by: Kautuk Consul Signed-off-by: David S. Miller diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c index 7705c67..df3155a 100644 --- a/arch/sparc/mm/fault_32.c +++ b/arch/sparc/mm/fault_32.c @@ -225,6 +225,8 @@ asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write, unsigned long g2; int from_user = !(regs->psr & PSR_PS); int fault, code; + unsigned int flags = (FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE | + (write ? FAULT_FLAG_WRITE : 0)); if(text_fault) address = regs->pc; @@ -251,6 +253,7 @@ asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write, perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address); +retry: down_read(&mm->mmap_sem); /* @@ -289,7 +292,11 @@ good_area: * make sure we exit gracefully rather than endlessly redo * the fault. */ - fault = handle_mm_fault(mm, vma, address, write ? FAULT_FLAG_WRITE : 0); + fault = handle_mm_fault(mm, vma, address, flags); + + if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current)) + return; + if (unlikely(fault & VM_FAULT_ERROR)) { if (fault & VM_FAULT_OOM) goto out_of_memory; @@ -297,13 +304,29 @@ good_area: goto do_sigbus; BUG(); } - if (fault & VM_FAULT_MAJOR) { - current->maj_flt++; - perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, regs, address); - } else { - current->min_flt++; - perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, regs, address); + + if (flags & FAULT_FLAG_ALLOW_RETRY) { + if (fault & VM_FAULT_MAJOR) { + current->maj_flt++; + perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, + 1, regs, address); + } else { + current->min_flt++; + perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, + 1, regs, address); + } + if (fault & VM_FAULT_RETRY) { + flags &= ~FAULT_FLAG_ALLOW_RETRY; + + /* No need to up_read(&mm->mmap_sem) as we would + * have already released it in __lock_page_or_retry + * in mm/filemap.c. + */ + + goto retry; + } } + up_read(&mm->mmap_sem); return; -- cgit v0.10.2 From d657784b70ef653350d7aa49da90a8484c29da7d Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Wed, 4 Apr 2012 21:20:01 +0200 Subject: sparc32,leon: fix leon build Minimal fix to allow leon to be built. Signed-off-by: Sam Ravnborg Cc: Konrad Eisele Cc: Daniel Hellstrom Signed-off-by: David S. Miller diff --git a/arch/sparc/kernel/leon_pci.c b/arch/sparc/kernel/leon_pci.c index aba6b95..19f5605 100644 --- a/arch/sparc/kernel/leon_pci.c +++ b/arch/sparc/kernel/leon_pci.c @@ -45,7 +45,6 @@ void leon_pci_init(struct platform_device *ofdev, struct leon_pci_info *info) void __devinit pcibios_fixup_bus(struct pci_bus *pbus) { - struct leon_pci_info *info = pbus->sysdata; struct pci_dev *dev; int i, has_io, has_mem; u16 cmd; @@ -111,18 +110,6 @@ int pcibios_enable_device(struct pci_dev *dev, int mask) return pci_enable_resources(dev, mask); } -struct device_node *pci_device_to_OF_node(struct pci_dev *pdev) -{ - /* - * Currently the OpenBoot nodes are not connected with the PCI device, - * this is because the LEON PROM does not create PCI nodes. Eventually - * this will change and the same approach as pcic.c can be used to - * match PROM nodes with pci devices. - */ - return NULL; -} -EXPORT_SYMBOL(pci_device_to_OF_node); - void __devinit pcibios_update_irq(struct pci_dev *dev, int irq) { #ifdef CONFIG_PCI_DEBUG -- cgit v0.10.2 From 117980c4c994b6fe58e873fe803c9bcdcb4337a3 Mon Sep 17 00:00:00 2001 From: Thadeu Lima de Souza Cascardo Date: Wed, 4 Apr 2012 09:40:40 +0000 Subject: mlx4: allocate just enough pages instead of always 4 pages The driver uses a 2-order allocation, which is too much on architectures like ppc64, which has a 64KiB page. This particular allocation is used for large packet fragments that may have a size of 512, 1024, 4096 or fill the whole allocation. So, a minimum size of 16384 is good enough and will be the same size that is used in architectures of 4KiB sized pages. This will avoid allocation failures that we see when the system is under stress, but still has plenty of memory, like the one below. This will also allow us to set the interface MTU to higher values like 9000, which was not possible on ppc64 without this patch. Node 1 DMA: 737*64kB 37*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB 0*8192kB 0*16384kB = 51904kB 83137 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 10420096kB Total swap = 10420096kB 107776 pages RAM 1184 pages reserved 147343 pages shared 28152 pages non-shared netstat: page allocation failure. order:2, mode:0x4020 Call Trace: [c0000001a4fa3770] [c000000000012f04] .show_stack+0x74/0x1c0 (unreliable) [c0000001a4fa3820] [c00000000016af38] .__alloc_pages_nodemask+0x618/0x930 [c0000001a4fa39a0] [c0000000001a71a0] .alloc_pages_current+0xb0/0x170 [c0000001a4fa3a40] [d00000000dcc3e00] .mlx4_en_alloc_frag+0x200/0x240 [mlx4_en] [c0000001a4fa3b10] [d00000000dcc3f8c] .mlx4_en_complete_rx_desc+0x14c/0x250 [mlx4_en] [c0000001a4fa3be0] [d00000000dcc4eec] .mlx4_en_process_rx_cq+0x62c/0x850 [mlx4_en] [c0000001a4fa3d20] [d00000000dcc5150] .mlx4_en_poll_rx_cq+0x40/0x90 [mlx4_en] [c0000001a4fa3dc0] [c0000000004e2bb8] .net_rx_action+0x178/0x450 [c0000001a4fa3eb0] [c00000000009c9b8] .__do_softirq+0x118/0x290 [c0000001a4fa3f90] [c000000000031df8] .call_do_softirq+0x14/0x24 [c000000184c3b520] [c00000000000e700] .do_softirq+0xf0/0x110 [c000000184c3b5c0] [c00000000009c6d4] .irq_exit+0xb4/0xc0 [c000000184c3b640] [c00000000000e964] .do_IRQ+0x144/0x230 Signed-off-by: Thadeu Lima de Souza Cascardo Signed-off-by: Kleber Sacilotto de Souza Tested-by: Kleber Sacilotto de Souza Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h index 9e2b911..d69fee4 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h +++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h @@ -83,8 +83,9 @@ #define MLX4_EN_WATCHDOG_TIMEOUT (15 * HZ) -#define MLX4_EN_ALLOC_ORDER 2 -#define MLX4_EN_ALLOC_SIZE (PAGE_SIZE << MLX4_EN_ALLOC_ORDER) +/* Use the maximum between 16384 and a single page */ +#define MLX4_EN_ALLOC_SIZE PAGE_ALIGN(16384) +#define MLX4_EN_ALLOC_ORDER get_order(MLX4_EN_ALLOC_SIZE) #define MLX4_EN_MAX_LRO_DESCRIPTORS 32 -- cgit v0.10.2 From 78d50217baf36093ab320f95bae0d6452daec85c Mon Sep 17 00:00:00 2001 From: "RongQing.Li" Date: Wed, 4 Apr 2012 16:47:04 +0000 Subject: ipv6: fix array index in ip6_mc_add_src() Convert array index from the loop bound to the loop index. And remove the void type conversion to ip6_mc_del1_src() return code, seem it is unnecessary, since ip6_mc_del1_src() does not use __must_check similar attribute, no compiler will report the warning when it is removed. v2: enrich the commit header Signed-off-by: RongQing.Li Signed-off-by: David S. Miller diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c index 16c33e3..b2869ca 100644 --- a/net/ipv6/mcast.c +++ b/net/ipv6/mcast.c @@ -2044,7 +2044,7 @@ static int ip6_mc_add_src(struct inet6_dev *idev, const struct in6_addr *pmca, if (!delta) pmc->mca_sfcount[sfmode]--; for (j=0; jmca_sfcount[MCAST_EXCLUDE] != 0)) { struct ip6_sf_list *psf; -- cgit v0.10.2 From 620f6e8e855d6d447688a5f67a4e176944a084e8 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 4 Apr 2012 11:40:19 -0700 Subject: sysctl: fix write access to dmesg_restrict/kptr_restrict Commit bfdc0b4 adds code to restrict access to dmesg_restrict, however, it incorrectly alters kptr_restrict rather than dmesg_restrict. The original patch from Richard Weinberger (https://lkml.org/lkml/2011/3/14/362) alters dmesg_restrict as expected, and so the patch seems to have been misapplied. This adds the CAP_SYS_ADMIN check to both dmesg_restrict and kptr_restrict, since both are sensitive. Reported-by: Phillip Lougher Signed-off-by: Kees Cook Acked-by: Serge Hallyn Acked-by: Richard Weinberger Cc: stable@vger.kernel.org Signed-off-by: James Morris diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 52b3a06..4ab1187 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -170,7 +170,7 @@ static int proc_taint(struct ctl_table *table, int write, #endif #ifdef CONFIG_PRINTK -static int proc_dmesg_restrict(struct ctl_table *table, int write, +static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos); #endif @@ -703,7 +703,7 @@ static struct ctl_table kern_table[] = { .data = &dmesg_restrict, .maxlen = sizeof(int), .mode = 0644, - .proc_handler = proc_dointvec_minmax, + .proc_handler = proc_dointvec_minmax_sysadmin, .extra1 = &zero, .extra2 = &one, }, @@ -712,7 +712,7 @@ static struct ctl_table kern_table[] = { .data = &kptr_restrict, .maxlen = sizeof(int), .mode = 0644, - .proc_handler = proc_dmesg_restrict, + .proc_handler = proc_dointvec_minmax_sysadmin, .extra1 = &zero, .extra2 = &two, }, @@ -1943,7 +1943,7 @@ static int proc_taint(struct ctl_table *table, int write, } #ifdef CONFIG_PRINTK -static int proc_dmesg_restrict(struct ctl_table *table, int write, +static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos) { if (write && !capable(CAP_SYS_ADMIN)) -- cgit v0.10.2 From 2a1cc1445a51e3a81c10d294586756cdb9174469 Mon Sep 17 00:00:00 2001 From: "Govindraj.R" Date: Thu, 5 Apr 2012 02:59:32 -0600 Subject: ARM: OMAP2+: omap_hwmod: Allow io_ring wakeup configuration for all modules Some modules doesn't have SYSC_HAS_ENAWAKEUP bit available (ex: usb host uhh module) in absence of this flag omap_hwmod_enable/disable_wakeup avoids configuring pad mux wakeup capability. Configure sysc if SYSC_HAS_ENAWAKEUP is available and for other cases try enabling/disabling wakeup from mux_pad pins. Cc: Paul Walmsley Cc: Kevin Hilman Cc: Rajendra Nayak Signed-off-by: Govindraj.R [paul@pwsan.com: updated function kerneldoc documentation] Signed-off-by: Paul Walmsley diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index eba6cd3..5a68010 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -2463,26 +2463,28 @@ int omap_hwmod_del_initiator_dep(struct omap_hwmod *oh, * @oh: struct omap_hwmod * * * Sets the module OCP socket ENAWAKEUP bit to allow the module to - * send wakeups to the PRCM. Eventually this should sets PRCM wakeup - * registers to cause the PRCM to receive wakeup events from the - * module. Does not set any wakeup routing registers beyond this - * point - if the module is to wake up any other module or subsystem, - * that must be set separately. Called by omap_device code. Returns - * -EINVAL on error or 0 upon success. + * send wakeups to the PRCM, and enable I/O ring wakeup events for + * this IP block if it has dynamic mux entries. Eventually this + * should set PRCM wakeup registers to cause the PRCM to receive + * wakeup events from the module. Does not set any wakeup routing + * registers beyond this point - if the module is to wake up any other + * module or subsystem, that must be set separately. Called by + * omap_device code. Returns -EINVAL on error or 0 upon success. */ int omap_hwmod_enable_wakeup(struct omap_hwmod *oh) { unsigned long flags; u32 v; - if (!oh->class->sysc || - !(oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP)) - return -EINVAL; - spin_lock_irqsave(&oh->_lock, flags); - v = oh->_sysc_cache; - _enable_wakeup(oh, &v); - _write_sysconfig(v, oh); + + if (oh->class->sysc && + (oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP)) { + v = oh->_sysc_cache; + _enable_wakeup(oh, &v); + _write_sysconfig(v, oh); + } + _set_idle_ioring_wakeup(oh, true); spin_unlock_irqrestore(&oh->_lock, flags); @@ -2494,26 +2496,28 @@ int omap_hwmod_enable_wakeup(struct omap_hwmod *oh) * @oh: struct omap_hwmod * * * Clears the module OCP socket ENAWAKEUP bit to prevent the module - * from sending wakeups to the PRCM. Eventually this should clear - * PRCM wakeup registers to cause the PRCM to ignore wakeup events - * from the module. Does not set any wakeup routing registers beyond - * this point - if the module is to wake up any other module or - * subsystem, that must be set separately. Called by omap_device - * code. Returns -EINVAL on error or 0 upon success. + * from sending wakeups to the PRCM, and disable I/O ring wakeup + * events for this IP block if it has dynamic mux entries. Eventually + * this should clear PRCM wakeup registers to cause the PRCM to ignore + * wakeup events from the module. Does not set any wakeup routing + * registers beyond this point - if the module is to wake up any other + * module or subsystem, that must be set separately. Called by + * omap_device code. Returns -EINVAL on error or 0 upon success. */ int omap_hwmod_disable_wakeup(struct omap_hwmod *oh) { unsigned long flags; u32 v; - if (!oh->class->sysc || - !(oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP)) - return -EINVAL; - spin_lock_irqsave(&oh->_lock, flags); - v = oh->_sysc_cache; - _disable_wakeup(oh, &v); - _write_sysconfig(v, oh); + + if (oh->class->sysc && + (oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP)) { + v = oh->_sysc_cache; + _disable_wakeup(oh, &v); + _write_sysconfig(v, oh); + } + _set_idle_ioring_wakeup(oh, false); spin_unlock_irqrestore(&oh->_lock, flags); -- cgit v0.10.2 From 2800852a079504f35f88e44faf5c9c96318c0cca Mon Sep 17 00:00:00 2001 From: Rajendra Nayak Date: Tue, 13 Mar 2012 22:55:23 +0530 Subject: ARM: OMAP2+: hwmod: Restore sysc after a reset After a softreset, make sure the sysc settings are correctly restored. Reported-by: Anand Gadiyar Signed-off-by: Rajendra Nayak Cc: Benoit Cousson Cc: Paul Walmsley Cc: Shubhrajyoti D [paul@pwsan.com: combined post-reset SYSCONFIG reload code into the _reset() function to avoid duplication and future mistakes] Signed-off-by: Paul Walmsley diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 5a68010..d32c1ce 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -1477,6 +1477,11 @@ static int _reset(struct omap_hwmod *oh) ret = (oh->class->reset) ? oh->class->reset(oh) : _ocp_softreset(oh); + if (oh->class->sysc) { + _update_sysc_cache(oh); + _enable_sysc(oh); + } + return ret; } @@ -1786,20 +1791,9 @@ static int _setup(struct omap_hwmod *oh, void *data) return 0; } - if (!(oh->flags & HWMOD_INIT_NO_RESET)) { + if (!(oh->flags & HWMOD_INIT_NO_RESET)) _reset(oh); - /* - * OCP_SYSCONFIG bits need to be reprogrammed after a softreset. - * The _enable() function should be split to - * avoid the rewrite of the OCP_SYSCONFIG register. - */ - if (oh->class->sysc) { - _update_sysc_cache(oh); - _enable_sysc(oh); - } - } - postsetup_state = oh->_postsetup_state; if (postsetup_state == _HWMOD_STATE_UNKNOWN) postsetup_state = _HWMOD_STATE_ENABLED; -- cgit v0.10.2 From f9a2f9c3fa76eec55928e8e06f3094c8f01df7cb Mon Sep 17 00:00:00 2001 From: Rajendra Nayak Date: Tue, 13 Mar 2012 22:55:24 +0530 Subject: ARM: OMAP2+: hwmod: Make omap_hwmod_softreset wait for reset status omap_hwmod_softreset() does not seem to wait for reset status after doing a softreset. Make it use _ocp_softreset() instead which does this correctly. Signed-off-by: Rajendra Nayak Cc: Benoit Cousson Cc: Paul Walmsley Cc: Anand Gadiyar Cc: Shubhrajyoti D Signed-off-by: Paul Walmsley diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index d32c1ce..72903d4 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -1901,20 +1901,10 @@ void omap_hwmod_write(u32 v, struct omap_hwmod *oh, u16 reg_offs) */ int omap_hwmod_softreset(struct omap_hwmod *oh) { - u32 v; - int ret; - - if (!oh || !(oh->_sysc_cache)) + if (!oh) return -EINVAL; - v = oh->_sysc_cache; - ret = _set_softreset(oh, &v); - if (ret) - goto error; - _write_sysconfig(v, oh); - -error: - return ret; + return _ocp_softreset(oh); } /** -- cgit v0.10.2 From 4ce107ccd714e54f7076aba585295421d30ad7f7 Mon Sep 17 00:00:00 2001 From: Vaibhav Hiremath Date: Fri, 17 Feb 2012 16:56:01 +0530 Subject: ARM: OMAP2+: hwmod: Fix wrong SYSC_TYPE1_XXX_MASK bit definitions In the SYSC_TYPE1_XXX_MASK configuration, SYSC_XXX_SHIFT macro is used which is not defined anywhere in the kernel. Until now the build was going through successfully, since it is not being used anywhere in kernel. This bug got introduced by the commit 358f0e630d5409ab3837b86db3595560eae773b6 ("OMAP3: hwmod: support to specify the offset position of various SYSCONFIG register bits.") Signed-off-by: Vaibhav Hiremath Acked-by: Benoit Cousson Signed-off-by: Paul Walmsley diff --git a/arch/arm/plat-omap/include/plat/omap_hwmod.h b/arch/arm/plat-omap/include/plat/omap_hwmod.h index 9e8e63d..8070145 100644 --- a/arch/arm/plat-omap/include/plat/omap_hwmod.h +++ b/arch/arm/plat-omap/include/plat/omap_hwmod.h @@ -47,17 +47,17 @@ extern struct omap_hwmod_sysc_fields omap_hwmod_sysc_type2; * with the original PRCM protocol defined for OMAP2420 */ #define SYSC_TYPE1_MIDLEMODE_SHIFT 12 -#define SYSC_TYPE1_MIDLEMODE_MASK (0x3 << SYSC_MIDLEMODE_SHIFT) +#define SYSC_TYPE1_MIDLEMODE_MASK (0x3 << SYSC_TYPE1_MIDLEMODE_SHIFT) #define SYSC_TYPE1_CLOCKACTIVITY_SHIFT 8 -#define SYSC_TYPE1_CLOCKACTIVITY_MASK (0x3 << SYSC_CLOCKACTIVITY_SHIFT) +#define SYSC_TYPE1_CLOCKACTIVITY_MASK (0x3 << SYSC_TYPE1_CLOCKACTIVITY_SHIFT) #define SYSC_TYPE1_SIDLEMODE_SHIFT 3 -#define SYSC_TYPE1_SIDLEMODE_MASK (0x3 << SYSC_SIDLEMODE_SHIFT) +#define SYSC_TYPE1_SIDLEMODE_MASK (0x3 << SYSC_TYPE1_SIDLEMODE_SHIFT) #define SYSC_TYPE1_ENAWAKEUP_SHIFT 2 -#define SYSC_TYPE1_ENAWAKEUP_MASK (1 << SYSC_ENAWAKEUP_SHIFT) +#define SYSC_TYPE1_ENAWAKEUP_MASK (1 << SYSC_TYPE1_ENAWAKEUP_SHIFT) #define SYSC_TYPE1_SOFTRESET_SHIFT 1 -#define SYSC_TYPE1_SOFTRESET_MASK (1 << SYSC_SOFTRESET_SHIFT) +#define SYSC_TYPE1_SOFTRESET_MASK (1 << SYSC_TYPE1_SOFTRESET_SHIFT) #define SYSC_TYPE1_AUTOIDLE_SHIFT 0 -#define SYSC_TYPE1_AUTOIDLE_MASK (1 << SYSC_AUTOIDLE_SHIFT) +#define SYSC_TYPE1_AUTOIDLE_MASK (1 << SYSC_TYPE1_AUTOIDLE_SHIFT) /* * OCP SYSCONFIG bit shifts/masks TYPE2. These are for IPs compliant -- cgit v0.10.2 From 5e2f7d617b574dadf3ad125e4821ce1b180b1626 Mon Sep 17 00:00:00 2001 From: Bob Peterson Date: Wed, 4 Apr 2012 22:11:16 -0400 Subject: GFS2: Make sure rindex is uptodate before starting transactions This patch removes the call from gfs2_blk2rgrd to function gfs2_rindex_update and replaces it with individual calls. The former way turned out to be too problematic. Signed-off-by: Bob Peterson Signed-off-by: Steven Whitehouse diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c index 197c5c4..03c04fe 100644 --- a/fs/gfs2/bmap.c +++ b/fs/gfs2/bmap.c @@ -724,7 +724,11 @@ static int do_strip(struct gfs2_inode *ip, struct buffer_head *dibh, int metadata; unsigned int revokes = 0; int x; - int error = 0; + int error; + + error = gfs2_rindex_update(sdp); + if (error) + return error; if (!*top) sm->sm_first = 0; diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c index c35573a..a836056 100644 --- a/fs/gfs2/dir.c +++ b/fs/gfs2/dir.c @@ -1844,6 +1844,10 @@ static int leaf_dealloc(struct gfs2_inode *dip, u32 index, u32 len, unsigned int x, size = len * sizeof(u64); int error; + error = gfs2_rindex_update(sdp); + if (error) + return error; + memset(&rlist, 0, sizeof(struct gfs2_rgrp_list)); ht = kzalloc(size, GFP_NOFS); diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c index c98a60e..a9ba244 100644 --- a/fs/gfs2/inode.c +++ b/fs/gfs2/inode.c @@ -1031,7 +1031,13 @@ static int gfs2_unlink(struct inode *dir, struct dentry *dentry) struct buffer_head *bh; struct gfs2_holder ghs[3]; struct gfs2_rgrpd *rgd; - int error = -EROFS; + int error; + + error = gfs2_rindex_update(sdp); + if (error) + return error; + + error = -EROFS; gfs2_holder_init(dip->i_gl, LM_ST_EXCLUSIVE, 0, ghs); gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + 1); @@ -1224,6 +1230,10 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry, return 0; } + error = gfs2_rindex_update(sdp); + if (error) + return error; + if (odip != ndip) { error = gfs2_glock_nq_init(sdp->sd_rename_gl, LM_ST_EXCLUSIVE, 0, &r_gh); @@ -1345,7 +1355,6 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry, error = alloc_required; if (error < 0) goto out_gunlock; - error = 0; if (alloc_required) { struct gfs2_qadata *qa = gfs2_qadata_get(ndip); diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c index 19354a2..3df65c9 100644 --- a/fs/gfs2/rgrp.c +++ b/fs/gfs2/rgrp.c @@ -332,9 +332,6 @@ struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, u64 blk, bool exact) struct rb_node *n, *next; struct gfs2_rgrpd *cur; - if (gfs2_rindex_update(sdp)) - return NULL; - spin_lock(&sdp->sd_rindex_spin); n = sdp->sd_rindex_tree.rb_node; while (n) { @@ -928,6 +925,10 @@ int gfs2_fitrim(struct file *filp, void __user *argp) } else if (copy_from_user(&r, argp, sizeof(r))) return -EFAULT; + ret = gfs2_rindex_update(sdp); + if (ret) + return ret; + rgd = gfs2_blk2rgrpd(sdp, r.start, 0); rgd_end = gfs2_blk2rgrpd(sdp, r.start + r.len, 0); diff --git a/fs/gfs2/xattr.c b/fs/gfs2/xattr.c index 2e5ba42..927f4df 100644 --- a/fs/gfs2/xattr.c +++ b/fs/gfs2/xattr.c @@ -238,6 +238,10 @@ static int ea_dealloc_unstuffed(struct gfs2_inode *ip, struct buffer_head *bh, unsigned int x; int error; + error = gfs2_rindex_update(sdp); + if (error) + return error; + if (GFS2_EA_IS_STUFFED(ea)) return 0; @@ -1330,6 +1334,10 @@ static int ea_dealloc_indirect(struct gfs2_inode *ip) unsigned int x; int error; + error = gfs2_rindex_update(sdp); + if (error) + return error; + memset(&rlist, 0, sizeof(struct gfs2_rgrp_list)); error = gfs2_meta_read(ip->i_gl, ip->i_eattr, DIO_WAIT, &indbh); @@ -1439,6 +1447,10 @@ static int ea_dealloc_block(struct gfs2_inode *ip) struct gfs2_holder gh; int error; + error = gfs2_rindex_update(sdp); + if (error) + return error; + rgd = gfs2_blk2rgrpd(sdp, ip->i_eattr, 1); if (!rgd) { gfs2_consist_inode(ip); -- cgit v0.10.2 From 1f99e44cf059d2ed43c5a0724fa738b83800f725 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Wed, 4 Apr 2012 23:28:01 -0700 Subject: ASoC: ak4642: fixup: mute needs +1 step ak4642 out_tlv is +12.0dB to -115.0 dB, and it supports mute. But current settings didn't care +1 step for mute. This patch adds it Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/sound/soc/codecs/ak4642.c b/sound/soc/codecs/ak4642.c index f8e10ce..b3e24f2 100644 --- a/sound/soc/codecs/ak4642.c +++ b/sound/soc/codecs/ak4642.c @@ -140,7 +140,7 @@ * min : 0xFE : -115.0 dB * mute: 0xFF */ -static const DECLARE_TLV_DB_SCALE(out_tlv, -11500, 50, 1); +static const DECLARE_TLV_DB_SCALE(out_tlv, -11550, 50, 1); static const struct snd_kcontrol_new ak4642_snd_controls[] = { -- cgit v0.10.2 From 6b1c762da98fd0d475a4539f94541aec91a8de30 Mon Sep 17 00:00:00 2001 From: Seung-Woo Kim Date: Thu, 5 Apr 2012 11:21:09 +0900 Subject: drm/exynos: add format list of plane NV12, NV12M and NV12MT are added to format list of plane to use these formats for hdmi vp layer. Signed-off-by: Seung-Woo Kim Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.c b/drivers/gpu/drm/exynos/exynos_drm_plane.c index c277a3a..f92fe4c 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_plane.c +++ b/drivers/gpu/drm/exynos/exynos_drm_plane.c @@ -24,6 +24,10 @@ struct exynos_plane { static const uint32_t formats[] = { DRM_FORMAT_XRGB8888, + DRM_FORMAT_ARGB8888, + DRM_FORMAT_NV12, + DRM_FORMAT_NV12M, + DRM_FORMAT_NV12MT, }; static int -- cgit v0.10.2 From 25c3d30c918207556ae1d6e663150ebdf902186b Mon Sep 17 00:00:00 2001 From: Kent Yoder Date: Thu, 5 Apr 2012 20:34:20 +0800 Subject: crypto: sha512 - Fix byte counter overflow in SHA-512 The current code only increments the upper 64 bits of the SHA-512 byte counter when the number of bytes hashed happens to hit 2^64 exactly. This patch increments the upper 64 bits whenever the lower 64 bits overflows. Signed-off-by: Kent Yoder Cc: stable@kernel.org Signed-off-by: Herbert Xu diff --git a/crypto/sha512_generic.c b/crypto/sha512_generic.c index 107f6f7..dd30f40 100644 --- a/crypto/sha512_generic.c +++ b/crypto/sha512_generic.c @@ -174,7 +174,7 @@ sha512_update(struct shash_desc *desc, const u8 *data, unsigned int len) index = sctx->count[0] & 0x7f; /* Update number of bytes */ - if (!(sctx->count[0] += len)) + if ((sctx->count[0] += len) < len) sctx->count[1]++; part_len = 128 - index; -- cgit v0.10.2 From 75258723dadd99a214f00bff34fa0fc6e7b6d463 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Wr=C3=B3bel?= Date: Thu, 5 Apr 2012 20:34:21 +0800 Subject: crypto: ixp4xx - include fix MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Before commit de47725421ad5627a5c905f4e40bb844ebc06d29 ("include: replace linux/module.h with "struct module" wherever possible") was implicitly included through -> . Signed-off-by: Michał Wróbel Signed-off-by: Herbert Xu diff --git a/drivers/crypto/ixp4xx_crypto.c b/drivers/crypto/ixp4xx_crypto.c index 0053d7e..8f3f74c 100644 --- a/drivers/crypto/ixp4xx_crypto.c +++ b/drivers/crypto/ixp4xx_crypto.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include -- cgit v0.10.2 From 6d27f09a6398ee086b11804aa3a16609876f0c7c Mon Sep 17 00:00:00 2001 From: Ryosuke Saito Date: Thu, 5 Apr 2012 08:09:34 -0600 Subject: mtip32xx: fix error handling in mtip_init() Ensure that block device is properly unregistered, if pci_register_driver() fails. Signed-off-by: Ryosuke Saito Signed-off-by: Jens Axboe diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index 04f69e6..c37073d 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -3605,18 +3605,25 @@ MODULE_DEVICE_TABLE(pci, mtip_pci_tbl); */ static int __init mtip_init(void) { + int error; + printk(KERN_INFO MTIP_DRV_NAME " Version " MTIP_DRV_VERSION "\n"); /* Allocate a major block device number to use with this driver. */ - mtip_major = register_blkdev(0, MTIP_DRV_NAME); - if (mtip_major < 0) { + error = register_blkdev(0, MTIP_DRV_NAME); + if (error <= 0) { printk(KERN_ERR "Unable to register block device (%d)\n", - mtip_major); + error); return -EBUSY; } + mtip_major = error; /* Register our PCI operations. */ - return pci_register_driver(&mtip_pci_driver); + error = pci_register_driver(&mtip_pci_driver); + if (error) + unregister_blkdev(mtip_major, MTIP_DRV_NAME); + + return error; } /* -- cgit v0.10.2 From 00792ac4e0d88e82fc489a5e1c4d4435125a301c Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Thu, 5 Apr 2012 09:45:51 -0300 Subject: ASoC: imx-audmux: Fix ssi port numbers in sysfs Doing a 'cat /sys/kernel/debug/audmux/ssi7' causes the following oops to be printed by the kernel: Uhandled fault: external abort on non-linefetch (0x008) at 0xf53b003c Internal error: : 8 [#1] PREEMPT Modules linked in: CPU: 0 Not tainted (3.3.0-00033-gecc726e-dirty #307) PC is at audmux_read_file+0x68/0x2f4 LR is at clk_enable+0x3c/0x48 pc : [] lr : [] psr: a0000013 sp : c3ad3f38 ip : c30a4000 fp : 00000003 r10: 00001000 r9 : be83fb00 r8 : c3ad3f80 r7 : c3ad3f80 r6 : 00000007 r5 : 00031010 r4 : c30a5000 r3 : f53b0000 r2 : 0000003c r1 : 380fa100 r0 : c068dda0 Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 0005317f Table: 83034000 DAC: 00000015 Process cat (pid: 1042, stack limit = 0xc3ad2270) Stack: (0xc3ad3f38 to 0xc3ad4000) 3f20: c3139180 00000000 3f40: c3bc6500 00001000 be83fb00 c3ad3f80 00001000 c3ad2000 00000000 c0095f3c 3f60: 00000003 c3bc6508 c3bc6500 be83fb00 00000000 00000000 00001000 c0096010 3f80: 00000000 00000000 b6fe2050 00000000 00001000 be83fb00 00000003 00000003 3fa0: c000eb88 c000e9e0 00001000 be83fb00 00000003 be83fb00 00001000 00000000 3fc0: 00001000 be83fb00 00000003 00000003 00000001 00000001 00000000 00000003 3fe0: 000bec8c be83fae0 0000f808 b6ea8d5c 60000010 00000003 7dff7ede 749bedf1 [] (audmux_read_file+0x68/0x2f4) from [] (vfs_read+0xb0/0x144) [] (vfs_read+0xb0/0x144) from [] (sys_read+0x40/0x70) [] (sys_read+0x40/0x70) from [] (ret_fast_syscall+0x0/0x2c) Code: e1a02186 e2822004 e3500000 e7935186 (e7937002) ---[ end trace 4d046e31309023de ]--- Fix the ssi port numbers in sysfs to fix this problem. Reported-by: Joan Carles Signed-off-by: Fabio Estevam Signed-off-by: Mark Brown diff --git a/sound/soc/imx/imx-audmux.c b/sound/soc/imx/imx-audmux.c index 601df80..912a342 100644 --- a/sound/soc/imx/imx-audmux.c +++ b/sound/soc/imx/imx-audmux.c @@ -158,7 +158,7 @@ static void __init audmux_debugfs_init(void) return; } - for (i = 1; i < 8; i++) { + for (i = 0; i < MX31_AUDMUX_PORT6_SSI_PINS_6 + 1; i++) { snprintf(buf, sizeof(buf), "ssi%d", i); if (!debugfs_create_file(buf, 0444, audmux_debugfs_root, (void *)i, &audmux_debugfs_fops)) -- cgit v0.10.2 From 66bb2a7f835a28a9405f3f6571fbf34156e6bc1e Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Thu, 5 Apr 2012 10:57:51 -0300 Subject: ASoC: imx-audmux: Check for NULL pointer Check for NULL pointer before accessing it. Signed-off-by: Fabio Estevam Signed-off-by: Mark Brown diff --git a/sound/soc/imx/imx-audmux.c b/sound/soc/imx/imx-audmux.c index 912a342..0fe66c3 100644 --- a/sound/soc/imx/imx-audmux.c +++ b/sound/soc/imx/imx-audmux.c @@ -79,6 +79,9 @@ static ssize_t audmux_read_file(struct file *file, char __user *user_buf, if (!buf) return -ENOMEM; + if (!audmux_base) + return -ENOSYS; + if (audmux_clk) clk_prepare_enable(audmux_clk); -- cgit v0.10.2 From e1b1994e165652d89986e95faa9cf22331375b3a Mon Sep 17 00:00:00 2001 From: Il Han Date: Thu, 5 Apr 2012 07:59:36 -0700 Subject: ARM: EXYNOS: fix ISO C90 warning ISO C90 forbids mixed declarations and code. Fix it. Signed-off-by: Il Han Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c index e6cc50e..8614aab 100644 --- a/arch/arm/mach-exynos/common.c +++ b/arch/arm/mach-exynos/common.c @@ -583,10 +583,11 @@ core_initcall(exynos_core_init); #ifdef CONFIG_CACHE_L2X0 static int __init exynos4_l2x0_cache_init(void) { + int ret; + if (soc_is_exynos5250()) return 0; - int ret; ret = l2x0_of_init(L2_AUX_VAL, L2_AUX_MASK); if (!ret) { l2x0_regs_phys = virt_to_phys(&l2x0_saved_regs); -- cgit v0.10.2 From f011fd164801cd8dd151268ae7adbadef0e3e301 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Thu, 5 Apr 2012 08:01:13 -0700 Subject: ARM: EXYNOS: Fix compiler warning in dma.c file Fixes the following warning: warning: 'dma_dmamask' defined but not used [-Wunused-variable] Signed-off-by: Sachin Kamat Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-exynos/dma.c b/arch/arm/mach-exynos/dma.c index 3983abe..69aaa45 100644 --- a/arch/arm/mach-exynos/dma.c +++ b/arch/arm/mach-exynos/dma.c @@ -35,8 +35,6 @@ #include #include -static u64 dma_dmamask = DMA_BIT_MASK(32); - static u8 exynos4210_pdma0_peri[] = { DMACH_PCM0_RX, DMACH_PCM0_TX, -- cgit v0.10.2 From fea5295324ce7ce6ccfe0909cc6740a2d34aa5a3 Mon Sep 17 00:00:00 2001 From: Sasikantha babu Date: Wed, 21 Mar 2012 18:49:00 +0530 Subject: KVM: PMU: Fix integer constant is too large warning in kvm_pmu_set_msr() Signed-off-by: Sasikantha babu Signed-off-by: Avi Kivity diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c index a73f0c1..173df38 100644 --- a/arch/x86/kvm/pmu.c +++ b/arch/x86/kvm/pmu.c @@ -369,7 +369,7 @@ int kvm_pmu_set_msr(struct kvm_vcpu *vcpu, u32 index, u64 data) case MSR_CORE_PERF_FIXED_CTR_CTRL: if (pmu->fixed_ctr_ctrl == data) return 0; - if (!(data & 0xfffffffffffff444)) { + if (!(data & 0xfffffffffffff444ull)) { reprogram_fixed_counters(pmu, data); return 0; } -- cgit v0.10.2 From 7a4f5ad051e02139a9f1c0f7f4b1acb88915852b Mon Sep 17 00:00:00 2001 From: Marcelo Tosatti Date: Tue, 27 Mar 2012 19:47:26 -0300 Subject: KVM: VMX: vmx_set_cr0 expects kvm->srcu locked vmx_set_cr0 is called from vcpu run context, therefore it expects kvm->srcu to be held (for setting up the real-mode TSS). Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 280751c..ad85adf 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -3906,7 +3906,9 @@ static int vmx_vcpu_reset(struct kvm_vcpu *vcpu) vmcs_write16(VIRTUAL_PROCESSOR_ID, vmx->vpid); vmx->vcpu.arch.cr0 = X86_CR0_NW | X86_CR0_CD | X86_CR0_ET; + vcpu->srcu_idx = srcu_read_lock(&vcpu->kvm->srcu); vmx_set_cr0(&vmx->vcpu, kvm_read_cr0(vcpu)); /* enter rmode */ + srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx); vmx_set_cr4(&vmx->vcpu, 0); vmx_set_efer(&vmx->vcpu, 0); vmx_fpu_activate(&vmx->vcpu); -- cgit v0.10.2 From e08759215b7dcb7111e94f0f96918dd98e86ca6b Mon Sep 17 00:00:00 2001 From: Gleb Natapov Date: Wed, 4 Apr 2012 15:30:33 +0300 Subject: KVM: Resolve RCU vs. async page fault problem "Page ready" async PF can kick vcpu out of idle state much like IRQ. We need to tell RCU about this. Reported-by: Sasha Levin Signed-off-by: Gleb Natapov Reviewed-by: Paul E. McKenney Signed-off-by: Avi Kivity diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index 694d801..b8ba6e4 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -38,6 +38,7 @@ #include #include #include +#include static int kvmapf = 1; @@ -253,7 +254,10 @@ do_async_page_fault(struct pt_regs *regs, unsigned long error_code) kvm_async_pf_task_wait((u32)read_cr2()); break; case KVM_PV_REASON_PAGE_READY: + rcu_irq_enter(); + exit_idle(); kvm_async_pf_task_wake((u32)read_cr2()); + rcu_irq_exit(); break; } } -- cgit v0.10.2 From 54f70077768e9aba37d9c5030b43497b6d5084fb Mon Sep 17 00:00:00 2001 From: "Luck, Tony" Date: Tue, 3 Apr 2012 09:37:28 -0700 Subject: ACPI processor: Use safe_halt() rather than halt() in acpi_idle_play_dead() ACPI code is shared by arch/x86 and arch/ia64. ia64 doesn't provide a plain "halt()" function. Use safe_halt() instead. Signed-off-by: Tony Luck Tested-by: Boris Ostrovsky Signed-off-by: Len Brown diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 6b1d32a..784f9a7 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -786,7 +786,7 @@ static int acpi_idle_play_dead(struct cpuidle_device *dev, int index) while (1) { if (cx->entry_method == ACPI_CSTATE_HALT) - halt(); + safe_halt(); else if (cx->entry_method == ACPI_CSTATE_SYSTEMIO) { inb(cx->address); /* See comment in acpi_idle_do_entry() */ -- cgit v0.10.2 From 66f3b913e68e8e62bd2f9499495eeb6cc81b2662 Mon Sep 17 00:00:00 2001 From: Gustavo Padovan Date: Thu, 29 Mar 2012 09:47:53 -0300 Subject: Bluetooth: Fix userspace compatibility issue with mgmt interface To ensure that old user space versions do not accidentally pick up and try to use the management channel, use a different channel number. Reported-by: Keith Packard Acked-by: Johan Hedberg Acked-by: Marcel Holtmann Signed-off-by: Gustavo Padovan diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h index 8f928f7..d47e523 100644 --- a/include/net/bluetooth/hci.h +++ b/include/net/bluetooth/hci.h @@ -1328,8 +1328,8 @@ struct sockaddr_hci { #define HCI_DEV_NONE 0xffff #define HCI_CHANNEL_RAW 0 -#define HCI_CHANNEL_CONTROL 1 #define HCI_CHANNEL_MONITOR 2 +#define HCI_CHANNEL_CONTROL 3 struct hci_filter { unsigned long type_mask; -- cgit v0.10.2 From 1ac02d795889d1828a66d4b3a3fd66492d1d7cf2 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Wed, 4 Apr 2012 17:48:04 -0500 Subject: ARM: fix __io macro for PCMCIA With commit c334bc1 (ARM: make mach/io.h include optional), PCMCIA was broken. PCMCIA depends on __io() returning a valid i/o address, and most ARM platforms require IO_SPACE_LIMIT be set to 0xffffffff for PCMCIA. This needs a better fix with a fixed i/o address mapping, but for now we just restore things to the previous behavior. This fixes at91, omap1, pxa and sa11xx. pxa needs io.h if PCI is enabled, but PCMCIA is not. sa11xx already has IO_SPACE_LIMIT set to 0xffffffff, so it doesn't need an io.h. Signed-off-by: Rob Herring Cc: Joachim Eastwood Cc: Russell King Cc: Andrew Victor Cc: Nicolas Ferre Cc: Jean-Christophe Plagniol-Villard Tested-by: Paul Parsons (pxa270) Acked-by: Tony Lindgren Signed-off-by: Olof Johansson diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 9318084..cf006d4 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -338,6 +338,7 @@ config ARCH_AT91 select HAVE_CLK select CLKDEV_LOOKUP select IRQ_DOMAIN + select NEED_MACH_IO_H if PCCARD help This enables support for systems based on the Atmel AT91RM9200, AT91SAM9 processors. diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h index df0ac0b..9af5563 100644 --- a/arch/arm/include/asm/io.h +++ b/arch/arm/include/asm/io.h @@ -119,7 +119,7 @@ static inline void __iomem *__typesafe_io(unsigned long addr) #ifdef CONFIG_NEED_MACH_IO_H #include #else -#define __io(a) ({ (void)(a); __typesafe_io(0); }) +#define __io(a) __typesafe_io((a) & IO_SPACE_LIMIT) #endif /* diff --git a/arch/arm/mach-at91/include/mach/io.h b/arch/arm/mach-at91/include/mach/io.h new file mode 100644 index 0000000..2d9ca04 --- /dev/null +++ b/arch/arm/mach-at91/include/mach/io.h @@ -0,0 +1,27 @@ +/* + * arch/arm/mach-at91/include/mach/io.h + * + * Copyright (C) 2003 SAN People + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef __ASM_ARCH_IO_H +#define __ASM_ARCH_IO_H + +#define IO_SPACE_LIMIT 0xFFFFFFFF +#define __io(a) __typesafe_io(a) + +#endif diff --git a/arch/arm/mach-omap1/include/mach/io.h b/arch/arm/mach-omap1/include/mach/io.h new file mode 100644 index 0000000..ce4f800 --- /dev/null +++ b/arch/arm/mach-omap1/include/mach/io.h @@ -0,0 +1,45 @@ +/* + * arch/arm/mach-omap1/include/mach/io.h + * + * IO definitions for TI OMAP processors and boards + * + * Copied from arch/arm/mach-sa1100/include/mach/io.h + * Copyright (C) 1997-1999 Russell King + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + * + * Modifications: + * 06-12-1997 RMK Created. + * 07-04-1999 RMK Major cleanup + */ + +#ifndef __ASM_ARM_ARCH_IO_H +#define __ASM_ARM_ARCH_IO_H + +#define IO_SPACE_LIMIT 0xffffffff + +/* + * We don't actually have real ISA nor PCI buses, but there is so many + * drivers out there that might just work if we fake them... + */ +#define __io(a) __typesafe_io(a) + +#endif diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig index 109ccd2..fe2d1f8 100644 --- a/arch/arm/mach-pxa/Kconfig +++ b/arch/arm/mach-pxa/Kconfig @@ -113,6 +113,7 @@ config MACH_ARMCORE select IWMMXT select PXA25x select MIGHT_HAVE_PCI + select NEED_MACH_IO_H if PCI config MACH_EM_X270 bool "CompuLab EM-x270 platform" diff --git a/arch/arm/mach-pxa/include/mach/io.h b/arch/arm/mach-pxa/include/mach/io.h new file mode 100644 index 0000000..cd78b7f --- /dev/null +++ b/arch/arm/mach-pxa/include/mach/io.h @@ -0,0 +1,17 @@ +/* + * arch/arm/mach-pxa/include/mach/io.h + * + * Copied from asm/arch/sa1100/io.h + */ +#ifndef __ASM_ARM_ARCH_IO_H +#define __ASM_ARM_ARCH_IO_H + +#define IO_SPACE_LIMIT 0xffffffff + +/* + * We don't actually have real ISA nor PCI buses, but there is so many + * drivers out there that might just work if we fake them... + */ +#define __io(a) __typesafe_io(a) + +#endif diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig index ce1e9b9..ad95c7a 100644 --- a/arch/arm/plat-omap/Kconfig +++ b/arch/arm/plat-omap/Kconfig @@ -17,6 +17,7 @@ config ARCH_OMAP1 select IRQ_DOMAIN select HAVE_IDE select NEED_MACH_MEMORY_H + select NEED_MACH_IO_H if PCCARD help "Systems based on omap7xx, omap15xx or omap16xx" -- cgit v0.10.2 From 3fec6b6d5a53d37194735268b9e220f75ca37f19 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Thu, 5 Apr 2012 12:28:01 -0600 Subject: ASoC: set idle_bias_off=1 for all platform DAPM contexts The ASoC core currently defaults to using STANDBY rather than OFF for idle ASoC platform devices, which causes a permanent pm_runtime_get() on them. This keeps the device active unnecessarily. This can be especially problematic when the ASoC platform device and DAI device are the same device. The distinction between OFF and STANDBY is likely not relevant for ASoC platform drivers, since they aren't analog devices. So, solve this issue by hard-coding idle_bias_off = 1 for all ASoC platform devices. If this turns out to be a problem, this value could be sourced from the snd_soc_platform_driver, similarly to soc_probe_codec(). Note: Prior to this change, this caused a large (10) runtime_active count for the Tegra I2S controller even when not in use, and a leak in that value as streams were started and stopped. This change probably hides a bug. Signed-off-by: Stephen Warren Signed-off-by: Mark Brown diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index a4deebc..8d2ebf5 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1087,6 +1087,8 @@ static int soc_probe_platform(struct snd_soc_card *card, snd_soc_dapm_new_controls(&platform->dapm, driver->dapm_widgets, driver->num_dapm_widgets); + platform->dapm.idle_bias_off = 1; + if (driver->probe) { ret = driver->probe(platform); if (ret < 0) { -- cgit v0.10.2 From 4bea8b5cf8c6e875fa43e617cd52858a07ae8ea8 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Mon, 2 Apr 2012 11:16:24 -0300 Subject: perf top: Add intel_idle to the skip list TODO: Accrue the cycles in the skip_list to an idle total, and show this on the 'top' UI, as suggested by Steven. Cc: Eric Dumazet Cc: Frederic Weisbecker Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Steven Rostedt Link: http://lkml.kernel.org/n/tip-9nfecmgghgl5747rjxqpc28f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index e3c63ae..fab0a1c 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -615,6 +615,7 @@ process_hotkey: /* Tag samples to be skipped. */ static const char *skip_symbols[] = { + "intel_idle", "default_idle", "native_safe_halt", "cpu_idle", -- cgit v0.10.2 From 8b84a568117fde9b77575f2060274eddab424c32 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 5 Apr 2012 16:15:59 -0300 Subject: perf annotate: Fix hist decay We were only decaying the entries for the offsets that were associated with an objdump line. That way, when we accrued the whole instruction addr range, more than 100% was appearing in some cases in the live annotation TUI. Fix it by not traversing the source code line at all, just iterate thru the complete addr range decaying each one. Reported-by: Mike Galbraith Cc: David Ahern Cc: Frederic Weisbecker Cc: Mike Galbraith Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-hcae5oxa22syjrnalsxz7s6n@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index 199f69e..70f5a4d 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -561,16 +561,12 @@ void symbol__annotate_decay_histogram(struct symbol *sym, int evidx) { struct annotation *notes = symbol__annotation(sym); struct sym_hist *h = annotation__histogram(notes, evidx); - struct objdump_line *pos; - int len = sym->end - sym->start; + int len = sym->end - sym->start, offset; h->sum = 0; - - list_for_each_entry(pos, ¬es->src->source, node) { - if (pos->offset != -1 && pos->offset < len) { - h->addr[pos->offset] = h->addr[pos->offset] * 7 / 8; - h->sum += h->addr[pos->offset]; - } + for (offset = 0; offset < len; ++offset) { + h->addr[offset] = h->addr[offset] * 7 / 8; + h->sum += h->addr[offset]; } } -- cgit v0.10.2 From 63fa471dd49e9c9ce029d910d1024330d9b1b145 Mon Sep 17 00:00:00 2001 From: David Miller Date: Tue, 27 Mar 2012 03:14:18 -0400 Subject: perf hists: Catch and handle out-of-date hist entry maps. When a process exec()'s, all the maps are retired, but we keep the hist entries around which hold references to those outdated maps. If the same library gets mapped in for which we have hist entries, a new map will be created. But when we take a perf entry hit within that map, we'll find the existing hist entry with the older map. This causes symbol translations to be done incorrectly. For example, the perf entry processing will lookup the correct uptodate map entry and use that to calculate the symbol and DSO relative address. But later when we update the histogram we'll translate the address using the outdated map file instead leading to conditions such as out-of-range offsets in symbol__inc_addr_samples(). Therefore, update the map of the hist_entry dynamically at lookup/ creation time. Signed-off-by: David S. Miller Cc: stable@kernel.org Link: http://lkml.kernel.org/r/20120327.031418.1220315351537060808.davem@davemloft.net Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c index 2ec4b60..9f6d630 100644 --- a/tools/perf/util/hist.c +++ b/tools/perf/util/hist.c @@ -256,6 +256,18 @@ static struct hist_entry *add_hist_entry(struct hists *hists, if (!cmp) { he->period += period; ++he->nr_events; + + /* If the map of an existing hist_entry has + * become out-of-date due to an exec() or + * similar, update it. Otherwise we will + * mis-adjust symbol addresses when computing + * the history counter to increment. + */ + if (he->ms.map != entry->ms.map) { + he->ms.map = entry->ms.map; + if (he->ms.map) + he->ms.map->referenced = true; + } goto out; } -- cgit v0.10.2 From 8493fe1daf15324eb13a4cc2f94e258716daa568 Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Wed, 4 Apr 2012 22:21:31 +0200 Subject: perf hists browser: Fix NULL deref in hists browsing code If there's an event with no samples in data file, the perf report command can segfault after entering the event details menu. Following steps reproduce the issue: # ./perf record -e syscalls:sys_enter_kexec_load,syscalls:sys_enter_mmap ls # ./perf report # enter '0 syscalls:sys_enter_kexec_load' menu # pres ENTER twice Above steps are valid assuming ls wont run kexec.. ;) The check for sellection to be NULL is missing. The fix makes sure it's being check. Above steps now endup with menu being displayed allowing 'Exit' as the only option. Signed-off-by: Jiri Olsa Cc: Corey Ashford Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1333570898-10505-2-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/perf/util/ui/browsers/hists.c b/tools/perf/util/ui/browsers/hists.c index d7a1c4a..2f83e5d 100644 --- a/tools/perf/util/ui/browsers/hists.c +++ b/tools/perf/util/ui/browsers/hists.c @@ -125,6 +125,9 @@ static int callchain__count_rows(struct rb_root *chain) static bool map_symbol__toggle_fold(struct map_symbol *self) { + if (!self) + return false; + if (!self->has_children) return false; -- cgit v0.10.2 From 21b764e075e74f8af90da9f623aa3e2167484687 Mon Sep 17 00:00:00 2001 From: Dave Jiang Date: Wed, 4 Apr 2012 16:10:35 -0700 Subject: ioat: ring size variables need to be 32bit to avoid overflow The alloc order can be up to 16 and 1 << 16 will over flow the 16bit integer. Change the appropriate variables to 16bit to avoid overflow. Reported-by: Jim Harris Signed-off-by: Dave Jiang Signed-off-by: Dan Williams diff --git a/drivers/dma/ioat/dma_v2.c b/drivers/dma/ioat/dma_v2.c index cb8864d..143cb1b 100644 --- a/drivers/dma/ioat/dma_v2.c +++ b/drivers/dma/ioat/dma_v2.c @@ -575,9 +575,9 @@ bool reshape_ring(struct ioat2_dma_chan *ioat, int order) */ struct ioat_chan_common *chan = &ioat->base; struct dma_chan *c = &chan->common; - const u16 curr_size = ioat2_ring_size(ioat); + const u32 curr_size = ioat2_ring_size(ioat); const u16 active = ioat2_ring_active(ioat); - const u16 new_size = 1 << order; + const u32 new_size = 1 << order; struct ioat_ring_ent **ring; u16 i; diff --git a/drivers/dma/ioat/dma_v2.h b/drivers/dma/ioat/dma_v2.h index a2c413b..be2a55b 100644 --- a/drivers/dma/ioat/dma_v2.h +++ b/drivers/dma/ioat/dma_v2.h @@ -74,7 +74,7 @@ static inline struct ioat2_dma_chan *to_ioat2_chan(struct dma_chan *c) return container_of(chan, struct ioat2_dma_chan, base); } -static inline u16 ioat2_ring_size(struct ioat2_dma_chan *ioat) +static inline u32 ioat2_ring_size(struct ioat2_dma_chan *ioat) { return 1 << ioat->alloc_order; } @@ -91,7 +91,7 @@ static inline u16 ioat2_ring_pending(struct ioat2_dma_chan *ioat) return CIRC_CNT(ioat->head, ioat->issued, ioat2_ring_size(ioat)); } -static inline u16 ioat2_ring_space(struct ioat2_dma_chan *ioat) +static inline u32 ioat2_ring_space(struct ioat2_dma_chan *ioat) { return ioat2_ring_size(ioat) - ioat2_ring_active(ioat); } -- cgit v0.10.2 From f26df1a1a9452573af7b6cea9a4723593e838568 Mon Sep 17 00:00:00 2001 From: Dave Jiang Date: Wed, 4 Apr 2012 16:10:41 -0700 Subject: ioatdma: DMA copy alignment needed to address IOAT DMA silicon errata Silicon errata where when RAID and legacy descriptors are mixed, the legacy (memcpy and friends) operation must have alignment of 64 bytes to avoid hanging. This effects Intel Xeon C55xx, C35xx, E5-2600. Signed-off-by: Dave Jiang Signed-off-by: Dan Williams diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c index 2dbf32b..dfe925f 100644 --- a/drivers/dma/ioat/dma_v3.c +++ b/drivers/dma/ioat/dma_v3.c @@ -1147,6 +1147,44 @@ static int ioat3_reset_hw(struct ioat_chan_common *chan) return ioat2_reset_sync(chan, msecs_to_jiffies(200)); } +static bool is_jf_ioat(struct pci_dev *pdev) +{ + switch (pdev->device) { + case PCI_DEVICE_ID_INTEL_IOAT_JSF0: + case PCI_DEVICE_ID_INTEL_IOAT_JSF1: + case PCI_DEVICE_ID_INTEL_IOAT_JSF2: + case PCI_DEVICE_ID_INTEL_IOAT_JSF3: + case PCI_DEVICE_ID_INTEL_IOAT_JSF4: + case PCI_DEVICE_ID_INTEL_IOAT_JSF5: + case PCI_DEVICE_ID_INTEL_IOAT_JSF6: + case PCI_DEVICE_ID_INTEL_IOAT_JSF7: + case PCI_DEVICE_ID_INTEL_IOAT_JSF8: + case PCI_DEVICE_ID_INTEL_IOAT_JSF9: + return true; + default: + return false; + } +} + +static bool is_snb_ioat(struct pci_dev *pdev) +{ + switch (pdev->device) { + case PCI_DEVICE_ID_INTEL_IOAT_SNB0: + case PCI_DEVICE_ID_INTEL_IOAT_SNB1: + case PCI_DEVICE_ID_INTEL_IOAT_SNB2: + case PCI_DEVICE_ID_INTEL_IOAT_SNB3: + case PCI_DEVICE_ID_INTEL_IOAT_SNB4: + case PCI_DEVICE_ID_INTEL_IOAT_SNB5: + case PCI_DEVICE_ID_INTEL_IOAT_SNB6: + case PCI_DEVICE_ID_INTEL_IOAT_SNB7: + case PCI_DEVICE_ID_INTEL_IOAT_SNB8: + case PCI_DEVICE_ID_INTEL_IOAT_SNB9: + return true; + default: + return false; + } +} + int __devinit ioat3_dma_probe(struct ioatdma_device *device, int dca) { struct pci_dev *pdev = device->pdev; @@ -1167,6 +1205,9 @@ int __devinit ioat3_dma_probe(struct ioatdma_device *device, int dca) dma->device_alloc_chan_resources = ioat2_alloc_chan_resources; dma->device_free_chan_resources = ioat2_free_chan_resources; + if (is_jf_ioat(pdev) || is_snb_ioat(pdev)) + dma->copy_align = 6; + dma_cap_set(DMA_INTERRUPT, dma->cap_mask); dma->device_prep_dma_interrupt = ioat3_prep_interrupt_lock; -- cgit v0.10.2 From 99663be772c827b8f5f594fe87eb4807be1994e5 Mon Sep 17 00:00:00 2001 From: Vasiliy Kulikov Date: Thu, 5 Apr 2012 14:25:04 -0700 Subject: proc: fix mount -t proc -o AAA The proc_parse_options() call from proc_mount() runs only once at boot time. So on any later mount attempt, any mount options are ignored because ->s_root is already initialized. As a consequence, "mount -o " will ignore the options. The only way to change mount options is "mount -o remount,". To fix this, parse the mount options unconditionally. Signed-off-by: Vasiliy Kulikov Reported-by: Arkadiusz Miskiewicz Tested-by: Arkadiusz Miskiewicz Cc: Alexey Dobriyan Cc: Al Viro Cc: Valdis Kletnieks Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/fs/proc/root.c b/fs/proc/root.c index 46a15d8..eed44bf 100644 --- a/fs/proc/root.c +++ b/fs/proc/root.c @@ -115,12 +115,13 @@ static struct dentry *proc_mount(struct file_system_type *fs_type, if (IS_ERR(sb)) return ERR_CAST(sb); + if (!proc_parse_options(options, ns)) { + deactivate_locked_super(sb); + return ERR_PTR(-EINVAL); + } + if (!sb->s_root) { sb->s_flags = flags; - if (!proc_parse_options(options, ns)) { - deactivate_locked_super(sb); - return ERR_PTR(-EINVAL); - } err = proc_fill_super(sb); if (err) { deactivate_locked_super(sb); -- cgit v0.10.2 From b82c32872db20667d6ee8e2ea1e7bdec791bdcc7 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Thu, 5 Apr 2012 14:25:05 -0700 Subject: sysrq: use SEND_SIG_FORCED instead of force_sig() Change send_sig_all() to use do_send_sig_info(SEND_SIG_FORCED) instead of force_sig(SIGKILL). With the recent changes we do not need force_ to kill the CLONE_NEWPID tasks. And this is more correct. force_sig() can race with the exiting thread, while do_send_sig_info(group => true) kill the whole process. Some more notes from Oleg Nesterov: > Just one note. This change makes no difference for sysrq_handle_kill(). > But it obviously changes the behaviour sysrq_handle_term(). I think > this is fine, if you want to really kill the task which blocks/ignores > SIGTERM you can use sysrq_handle_kill(). > > Even ignoring the reasons why force_sig() is simply wrong here, > force_sig(SIGTERM) looks strange. The task won't be killed if it has > a handler, but SIG_IGN can't help. However if it has the handler > but blocks SIGTERM temporary (this is very common) it will be killed. Also, > force_sig() can't kill the process if the main thread has already > exited. IOW, it is trivial to create the process which can't be > killed by sysrq. So, this patch fixes the issue. Suggested-by: Oleg Nesterov Acked-by: Greg Kroah-Hartman Acked-by: Oleg Nesterov Signed-off-by: Anton Vorontsov Cc: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c index 136e86f..05728894 100644 --- a/drivers/tty/sysrq.c +++ b/drivers/tty/sysrq.c @@ -327,7 +327,7 @@ static void send_sig_all(int sig) if (is_global_init(p)) continue; - force_sig(sig, p); + do_send_sig_info(sig, SEND_SIG_FORCED, p, true); } read_unlock(&tasklist_lock); } -- cgit v0.10.2 From 703bf2d122c95412a30f72658c53ad6292867b0b Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Thu, 5 Apr 2012 14:25:06 -0700 Subject: fs/xattr.c: suppress page allocation failure warnings from sys_listxattr() This size is user controllable, up to a maximum of XATTR_LIST_MAX (64k). So it's trivial for someone to trigger a stream of order:4 page allocation errors. Signed-off-by: Dave Jones Cc: Al Viro Cc: Dave Chinner Acked-by: David Rientjes Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/fs/xattr.c b/fs/xattr.c index d6dfd24..a14d842 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -496,7 +496,7 @@ listxattr(struct dentry *d, char __user *list, size_t size) if (size) { if (size > XATTR_LIST_MAX) size = XATTR_LIST_MAX; - klist = kmalloc(size, GFP_KERNEL); + klist = kmalloc(size, __GFP_NOWARN | GFP_KERNEL); if (!klist) return -ENOMEM; } -- cgit v0.10.2 From 0d08d7b7e13b5060181b11ecdde82d8fda322123 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Thu, 5 Apr 2012 14:25:07 -0700 Subject: fs/xattr.c:listxattr(): fall back to vmalloc() if kmalloc() failed This allocation can be as large as 64k. As David points out, "falling back to vmalloc here is much better solution than failing to retreive the attribute - it will work no matter how fragmented memory gets. That means we don't get incomplete backups occurring after days or months of uptime and successful backups". Cc: Dave Chinner Cc: Dave Jones Cc: David Rientjes Cc: Al Viro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/fs/xattr.c b/fs/xattr.c index a14d842..d14afba 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -19,8 +19,9 @@ #include #include #include -#include +#include +#include /* * Check permissions for extended attribute access. This is a bit complicated @@ -492,13 +493,18 @@ listxattr(struct dentry *d, char __user *list, size_t size) { ssize_t error; char *klist = NULL; + char *vlist = NULL; /* If non-NULL, we used vmalloc() */ if (size) { if (size > XATTR_LIST_MAX) size = XATTR_LIST_MAX; klist = kmalloc(size, __GFP_NOWARN | GFP_KERNEL); - if (!klist) - return -ENOMEM; + if (!klist) { + vlist = vmalloc(size); + if (!vlist) + return -ENOMEM; + klist = vlist; + } } error = vfs_listxattr(d, klist, size); @@ -510,7 +516,10 @@ listxattr(struct dentry *d, char __user *list, size_t size) than XATTR_LIST_MAX bytes. Not possible. */ error = -E2BIG; } - kfree(klist); + if (vlist) + vfree(vlist); + else + kfree(klist); return error; } -- cgit v0.10.2 From 44c824982fd37a578da23cc90885e9690a6a3f0e Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Thu, 5 Apr 2012 14:25:07 -0700 Subject: fs/xattr.c:setxattr(): improve handling of allocation failures This allocation can be as large as 64k. - Add __GFP_NOWARN so the a falied kmalloc() is silent - Fall back to vmalloc() if the kmalloc() failed Cc: Dave Chinner Cc: Dave Jones Cc: David Rientjes Cc: Al Viro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/fs/xattr.c b/fs/xattr.c index d14afba..3c8c1cc 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -321,6 +321,7 @@ setxattr(struct dentry *d, const char __user *name, const void __user *value, { int error; void *kvalue = NULL; + void *vvalue = NULL; /* If non-NULL, we used vmalloc() */ char kname[XATTR_NAME_MAX + 1]; if (flags & ~(XATTR_CREATE|XATTR_REPLACE)) @@ -335,13 +336,25 @@ setxattr(struct dentry *d, const char __user *name, const void __user *value, if (size) { if (size > XATTR_SIZE_MAX) return -E2BIG; - kvalue = memdup_user(value, size); - if (IS_ERR(kvalue)) - return PTR_ERR(kvalue); + kvalue = kmalloc(size, GFP_KERNEL | __GFP_NOWARN); + if (!kvalue) { + vvalue = vmalloc(size); + if (!vvalue) + return -ENOMEM; + kvalue = vvalue; + } + if (copy_from_user(kvalue, value, size)) { + error = -EFAULT; + goto out; + } } error = vfs_setxattr(d, kname, kvalue, size, flags); - kfree(kvalue); +out: + if (vvalue) + vfree(vvalue); + else + kfree(kvalue); return error; } -- cgit v0.10.2 From fd835d1f2d4826a19530bc045579ffda5775b8f7 Mon Sep 17 00:00:00 2001 From: "Jett.Zhou" Date: Thu, 5 Apr 2012 14:25:08 -0700 Subject: drivers/rtc/rtc-88pm860x.c: fix rtc irq enable callback According to 88pm860x spec, rtc alarm irq enable control is bit3 for RTC_ALARM_EN, so fix it. Signed-off-by: Jett.Zhou Cc: Axel Lin Cc: Haojian Zhuang Cc: Alessandro Zummo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/rtc/rtc-88pm860x.c b/drivers/rtc/rtc-88pm860x.c index f04761e..8b72b4c 100644 --- a/drivers/rtc/rtc-88pm860x.c +++ b/drivers/rtc/rtc-88pm860x.c @@ -72,9 +72,9 @@ static int pm860x_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) struct pm860x_rtc_info *info = dev_get_drvdata(dev); if (enabled) - pm860x_set_bits(info->i2c, PM8607_RTC1, ALARM, ALARM); + pm860x_set_bits(info->i2c, PM8607_RTC1, ALARM_EN, ALARM_EN); else - pm860x_set_bits(info->i2c, PM8607_RTC1, ALARM, 0); + pm860x_set_bits(info->i2c, PM8607_RTC1, ALARM_EN, 0); return 0; } -- cgit v0.10.2 From 7563ec4c211ba59c2331dc6b94a068250345c387 Mon Sep 17 00:00:00 2001 From: Hillf Danton Date: Thu, 5 Apr 2012 14:25:09 -0700 Subject: hugetlbfs: remove unregister_filesystem() when initializing module It was introduced by d1d5e05ffdc1 ("hugetlbfs: return error code when initializing module") but as Al pointed out, is a bad idea. Quoted comments from Al: "Note that unregister_filesystem() in module init is *always* wrong; it's not an issue here (it's done too early to care about and realistically the box is not going anywhere - it'll panic when attempt to exec /sbin/init fails, if not earlier), but it's a damn bad example. Consider a normal fs module. Somebody loads it and in parallel with that we get a mount attempt on that fs type. It comes between register and failure exits that causes unregister; at that point we are screwed since grabbing a reference to module as done by mount is enough to prevent exit, but not to prevent the failure of init. As the result, module will get freed when init fails, mounted fs of that type be damned." So remove it. Signed-off-by: Hillf Danton Cc: David Rientjes Cc: Al Viro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index ea25174..28cf06e 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -1031,7 +1031,6 @@ static int __init init_hugetlbfs_fs(void) } error = PTR_ERR(vfsmount); - unregister_filesystem(&hugetlbfs_fs_type); out: kmem_cache_destroy(hugetlbfs_inode_cachep); -- cgit v0.10.2 From 20955e891d828b2027281fe3295dae6af8e0423b Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Thu, 5 Apr 2012 14:25:09 -0700 Subject: libfs: add simple_open() debugfs and a few other drivers use an open-coded version of simple_open() to pass a pointer from the file to the read/write file ops. Add support for this simple case to libfs so that we can remove the many duplicate copies of this simple function. Signed-off-by: Stephen Boyd Cc: Al Viro Cc: Julia Lawall Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/fs/libfs.c b/fs/libfs.c index 4a0d1f0..358094f 100644 --- a/fs/libfs.c +++ b/fs/libfs.c @@ -264,6 +264,13 @@ Enomem: return ERR_PTR(-ENOMEM); } +int simple_open(struct inode *inode, struct file *file) +{ + if (inode->i_private) + file->private_data = inode->i_private; + return 0; +} + int simple_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry) { struct inode *inode = old_dentry->d_inode; @@ -984,6 +991,7 @@ EXPORT_SYMBOL(simple_dir_operations); EXPORT_SYMBOL(simple_empty); EXPORT_SYMBOL(simple_fill_super); EXPORT_SYMBOL(simple_getattr); +EXPORT_SYMBOL(simple_open); EXPORT_SYMBOL(simple_link); EXPORT_SYMBOL(simple_lookup); EXPORT_SYMBOL(simple_pin_fs); diff --git a/include/linux/fs.h b/include/linux/fs.h index c437f91..c64c31d 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2502,6 +2502,7 @@ extern int dcache_readdir(struct file *, void *, filldir_t); extern int simple_setattr(struct dentry *, struct iattr *); extern int simple_getattr(struct vfsmount *, struct dentry *, struct kstat *); extern int simple_statfs(struct dentry *, struct kstatfs *); +extern int simple_open(struct inode *inode, struct file *file); extern int simple_link(struct dentry *, struct inode *, struct dentry *); extern int simple_unlink(struct inode *, struct dentry *); extern int simple_rmdir(struct inode *, struct dentry *); -- cgit v0.10.2 From 9b3ae64be658a573b33d05a8dc73b08d3345fa44 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Thu, 5 Apr 2012 14:25:10 -0700 Subject: scripts/coccinelle/api/simple_open.cocci: semantic patch for simple_open() Find instances of an open-coded simple_open() and replace them with calls to simple_open(). Signed-off-by: Julia Lawall Reported-by: Stephen Boyd Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/scripts/coccinelle/api/simple_open.cocci b/scripts/coccinelle/api/simple_open.cocci new file mode 100644 index 0000000..05962f7 --- /dev/null +++ b/scripts/coccinelle/api/simple_open.cocci @@ -0,0 +1,70 @@ +/// This removes an open coded simple_open() function +/// and replaces file operations references to the function +/// with simple_open() instead. +/// +// Confidence: High +// Comments: +// Options: -no_includes -include_headers + +virtual patch +virtual report + +@ open depends on patch @ +identifier open_f != simple_open; +identifier i, f; +@@ +-int open_f(struct inode *i, struct file *f) +-{ +( +-if (i->i_private) +-f->private_data = i->i_private; +| +-f->private_data = i->i_private; +) +-return 0; +-} + +@ has_open depends on open @ +identifier fops; +identifier open.open_f; +@@ +struct file_operations fops = { +..., +-.open = open_f, ++.open = simple_open, +... +}; + +@ openr depends on report @ +identifier open_f != simple_open; +identifier i, f; +position p; +@@ +int open_f@p(struct inode *i, struct file *f) +{ +( +if (i->i_private) +f->private_data = i->i_private; +| +f->private_data = i->i_private; +) +return 0; +} + +@ has_openr depends on openr @ +identifier fops; +identifier openr.open_f; +position p; +@@ +struct file_operations fops = { +..., +.open = open_f@p, +... +}; + +@script:python@ +pf << openr.p; +ps << has_openr.p; +@@ + +coccilib.report.print_report(pf[0],"WARNING opportunity for simple_open, see also structure on line %s"%(ps[0].line)) -- cgit v0.10.2 From 234e340582901211f40d8c732afc49f0630ecf05 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Thu, 5 Apr 2012 14:25:11 -0700 Subject: simple_open: automatically convert to simple_open() Many users of debugfs copy the implementation of default_open() when they want to support a custom read/write function op. This leads to a proliferation of the default_open() implementation across the entire tree. Now that the common implementation has been consolidated into libfs we can replace all the users of this function with simple_open(). This replacement was done with the following semantic patch: @ open @ identifier open_f != simple_open; identifier i, f; @@ -int open_f(struct inode *i, struct file *f) -{ ( -if (i->i_private) -f->private_data = i->i_private; | -f->private_data = i->i_private; ) -return 0; -} @ has_open depends on open @ identifier fops; identifier open.open_f; @@ struct file_operations fops = { ... -.open = open_f, +.open = simple_open, ... }; [akpm@linux-foundation.org: checkpatch fixes] Signed-off-by: Stephen Boyd Cc: Greg Kroah-Hartman Cc: Al Viro Cc: Julia Lawall Acked-by: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/arch/arm/mach-msm/smd_debug.c b/arch/arm/mach-msm/smd_debug.c index 0c56a5a..c56df9e 100644 --- a/arch/arm/mach-msm/smd_debug.c +++ b/arch/arm/mach-msm/smd_debug.c @@ -203,15 +203,9 @@ static ssize_t debug_read(struct file *file, char __user *buf, return simple_read_from_buffer(buf, count, ppos, debug_buffer, bsize); } -static int debug_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - static const struct file_operations debug_ops = { .read = debug_read, - .open = debug_open, + .open = simple_open, .llseek = default_llseek, }; diff --git a/arch/x86/kernel/kdebugfs.c b/arch/x86/kernel/kdebugfs.c index 90fcf62..1d5d31e 100644 --- a/arch/x86/kernel/kdebugfs.c +++ b/arch/x86/kernel/kdebugfs.c @@ -68,16 +68,9 @@ static ssize_t setup_data_read(struct file *file, char __user *user_buf, return count; } -static int setup_data_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - - return 0; -} - static const struct file_operations fops_setup_data = { .read = setup_data_read, - .open = setup_data_open, + .open = simple_open, .llseek = default_llseek, }; diff --git a/drivers/acpi/ec_sys.c b/drivers/acpi/ec_sys.c index b258cab..7586544 100644 --- a/drivers/acpi/ec_sys.c +++ b/drivers/acpi/ec_sys.c @@ -27,12 +27,6 @@ MODULE_PARM_DESC(write_support, "Dangerous, reboot and removal of battery may " static struct dentry *acpi_ec_debugfs_dir; -static int acpi_ec_open_io(struct inode *i, struct file *f) -{ - f->private_data = i->i_private; - return 0; -} - static ssize_t acpi_ec_read_io(struct file *f, char __user *buf, size_t count, loff_t *off) { @@ -95,7 +89,7 @@ static ssize_t acpi_ec_write_io(struct file *f, const char __user *buf, static const struct file_operations acpi_ec_io_ops = { .owner = THIS_MODULE, - .open = acpi_ec_open_io, + .open = simple_open, .read = acpi_ec_read_io, .write = acpi_ec_write_io, .llseek = default_llseek, diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c index 58517a5..251eb70 100644 --- a/drivers/base/regmap/regmap-debugfs.c +++ b/drivers/base/regmap/regmap-debugfs.c @@ -27,12 +27,6 @@ static size_t regmap_calc_reg_len(int max_val, char *buf, size_t buf_size) return strlen(buf); } -static int regmap_open_file(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - static ssize_t regmap_name_read_file(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) @@ -57,7 +51,7 @@ static ssize_t regmap_name_read_file(struct file *file, } static const struct file_operations regmap_name_fops = { - .open = regmap_open_file, + .open = simple_open, .read = regmap_name_read_file, .llseek = default_llseek, }; @@ -174,7 +168,7 @@ static ssize_t regmap_map_write_file(struct file *file, #endif static const struct file_operations regmap_map_fops = { - .open = regmap_open_file, + .open = simple_open, .read = regmap_map_read_file, .write = regmap_map_write_file, .llseek = default_llseek, @@ -243,7 +237,7 @@ out: } static const struct file_operations regmap_access_fops = { - .open = regmap_open_file, + .open = simple_open, .read = regmap_access_read_file, .llseek = default_llseek, }; diff --git a/drivers/bluetooth/btmrvl_debugfs.c b/drivers/bluetooth/btmrvl_debugfs.c index 6c20bbb..428dbb7 100644 --- a/drivers/bluetooth/btmrvl_debugfs.c +++ b/drivers/bluetooth/btmrvl_debugfs.c @@ -45,12 +45,6 @@ struct btmrvl_debugfs_data { struct dentry *txdnldready; }; -static int btmrvl_open_generic(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - static ssize_t btmrvl_hscfgcmd_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { @@ -93,7 +87,7 @@ static ssize_t btmrvl_hscfgcmd_read(struct file *file, char __user *userbuf, static const struct file_operations btmrvl_hscfgcmd_fops = { .read = btmrvl_hscfgcmd_read, .write = btmrvl_hscfgcmd_write, - .open = btmrvl_open_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -134,7 +128,7 @@ static ssize_t btmrvl_psmode_read(struct file *file, char __user *userbuf, static const struct file_operations btmrvl_psmode_fops = { .read = btmrvl_psmode_read, .write = btmrvl_psmode_write, - .open = btmrvl_open_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -180,7 +174,7 @@ static ssize_t btmrvl_pscmd_read(struct file *file, char __user *userbuf, static const struct file_operations btmrvl_pscmd_fops = { .read = btmrvl_pscmd_read, .write = btmrvl_pscmd_write, - .open = btmrvl_open_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -221,7 +215,7 @@ static ssize_t btmrvl_gpiogap_read(struct file *file, char __user *userbuf, static const struct file_operations btmrvl_gpiogap_fops = { .read = btmrvl_gpiogap_read, .write = btmrvl_gpiogap_write, - .open = btmrvl_open_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -265,7 +259,7 @@ static ssize_t btmrvl_hscmd_read(struct file *file, char __user *userbuf, static const struct file_operations btmrvl_hscmd_fops = { .read = btmrvl_hscmd_read, .write = btmrvl_hscmd_write, - .open = btmrvl_open_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -305,7 +299,7 @@ static ssize_t btmrvl_hsmode_read(struct file *file, char __user * userbuf, static const struct file_operations btmrvl_hsmode_fops = { .read = btmrvl_hsmode_read, .write = btmrvl_hsmode_write, - .open = btmrvl_open_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -323,7 +317,7 @@ static ssize_t btmrvl_curpsmode_read(struct file *file, char __user *userbuf, static const struct file_operations btmrvl_curpsmode_fops = { .read = btmrvl_curpsmode_read, - .open = btmrvl_open_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -341,7 +335,7 @@ static ssize_t btmrvl_psstate_read(struct file *file, char __user * userbuf, static const struct file_operations btmrvl_psstate_fops = { .read = btmrvl_psstate_read, - .open = btmrvl_open_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -359,7 +353,7 @@ static ssize_t btmrvl_hsstate_read(struct file *file, char __user *userbuf, static const struct file_operations btmrvl_hsstate_fops = { .read = btmrvl_hsstate_read, - .open = btmrvl_open_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -378,7 +372,7 @@ static ssize_t btmrvl_txdnldready_read(struct file *file, char __user *userbuf, static const struct file_operations btmrvl_txdnldready_fops = { .read = btmrvl_txdnldready_read, - .open = btmrvl_open_generic, + .open = simple_open, .llseek = default_llseek, }; diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index b58b561..ddf86b6 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -1038,12 +1038,6 @@ static struct attribute_group port_attribute_group = { .attrs = port_sysfs_entries, }; -static int debugfs_open(struct inode *inode, struct file *filp) -{ - filp->private_data = inode->i_private; - return 0; -} - static ssize_t debugfs_read(struct file *filp, char __user *ubuf, size_t count, loff_t *offp) { @@ -1087,7 +1081,7 @@ static ssize_t debugfs_read(struct file *filp, char __user *ubuf, static const struct file_operations port_debugfs_ops = { .owner = THIS_MODULE, - .open = debugfs_open, + .open = simple_open, .read = debugfs_read, }; diff --git a/drivers/dma/coh901318.c b/drivers/dma/coh901318.c index d65a718..a63badc 100644 --- a/drivers/dma/coh901318.c +++ b/drivers/dma/coh901318.c @@ -104,13 +104,6 @@ static void coh901318_list_print(struct coh901318_chan *cohc, static struct coh901318_base *debugfs_dma_base; static struct dentry *dma_dentry; -static int coh901318_debugfs_open(struct inode *inode, struct file *file) -{ - - file->private_data = inode->i_private; - return 0; -} - static int coh901318_debugfs_read(struct file *file, char __user *buf, size_t count, loff_t *f_pos) { @@ -158,7 +151,7 @@ static int coh901318_debugfs_read(struct file *file, char __user *buf, static const struct file_operations coh901318_debugfs_status_operations = { .owner = THIS_MODULE, - .open = coh901318_debugfs_open, + .open = simple_open, .read = coh901318_debugfs_read, .llseek = default_llseek, }; diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index fdb7cce..b505b70 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -1502,14 +1502,6 @@ static int i915_ppgtt_info(struct seq_file *m, void *data) return 0; } -static int -i915_debugfs_common_open(struct inode *inode, - struct file *filp) -{ - filp->private_data = inode->i_private; - return 0; -} - static ssize_t i915_wedged_read(struct file *filp, char __user *ubuf, @@ -1560,7 +1552,7 @@ i915_wedged_write(struct file *filp, static const struct file_operations i915_wedged_fops = { .owner = THIS_MODULE, - .open = i915_debugfs_common_open, + .open = simple_open, .read = i915_wedged_read, .write = i915_wedged_write, .llseek = default_llseek, @@ -1622,7 +1614,7 @@ i915_max_freq_write(struct file *filp, static const struct file_operations i915_max_freq_fops = { .owner = THIS_MODULE, - .open = i915_debugfs_common_open, + .open = simple_open, .read = i915_max_freq_read, .write = i915_max_freq_write, .llseek = default_llseek, @@ -1693,7 +1685,7 @@ i915_cache_sharing_write(struct file *filp, static const struct file_operations i915_cache_sharing_fops = { .owner = THIS_MODULE, - .open = i915_debugfs_common_open, + .open = simple_open, .read = i915_cache_sharing_read, .write = i915_cache_sharing_write, .llseek = default_llseek, diff --git a/drivers/hid/hid-picolcd.c b/drivers/hid/hid-picolcd.c index 12f9777..45c3433 100644 --- a/drivers/hid/hid-picolcd.c +++ b/drivers/hid/hid-picolcd.c @@ -1525,12 +1525,6 @@ static const struct file_operations picolcd_debug_reset_fops = { /* * The "eeprom" file */ -static int picolcd_debug_eeprom_open(struct inode *i, struct file *f) -{ - f->private_data = i->i_private; - return 0; -} - static ssize_t picolcd_debug_eeprom_read(struct file *f, char __user *u, size_t s, loff_t *off) { @@ -1618,7 +1612,7 @@ static ssize_t picolcd_debug_eeprom_write(struct file *f, const char __user *u, */ static const struct file_operations picolcd_debug_eeprom_fops = { .owner = THIS_MODULE, - .open = picolcd_debug_eeprom_open, + .open = simple_open, .read = picolcd_debug_eeprom_read, .write = picolcd_debug_eeprom_write, .llseek = generic_file_llseek, @@ -1627,12 +1621,6 @@ static const struct file_operations picolcd_debug_eeprom_fops = { /* * The "flash" file */ -static int picolcd_debug_flash_open(struct inode *i, struct file *f) -{ - f->private_data = i->i_private; - return 0; -} - /* record a flash address to buf (bounds check to be done by caller) */ static int _picolcd_flash_setaddr(struct picolcd_data *data, u8 *buf, long off) { @@ -1817,7 +1805,7 @@ static ssize_t picolcd_debug_flash_write(struct file *f, const char __user *u, */ static const struct file_operations picolcd_debug_flash_fops = { .owner = THIS_MODULE, - .open = picolcd_debug_flash_open, + .open = simple_open, .read = picolcd_debug_flash_read, .write = picolcd_debug_flash_write, .llseek = generic_file_llseek, diff --git a/drivers/hid/hid-wiimote-debug.c b/drivers/hid/hid-wiimote-debug.c index 17dabc1..eec3291 100644 --- a/drivers/hid/hid-wiimote-debug.c +++ b/drivers/hid/hid-wiimote-debug.c @@ -23,12 +23,6 @@ struct wiimote_debug { struct dentry *drm; }; -static int wiidebug_eeprom_open(struct inode *i, struct file *f) -{ - f->private_data = i->i_private; - return 0; -} - static ssize_t wiidebug_eeprom_read(struct file *f, char __user *u, size_t s, loff_t *off) { @@ -83,7 +77,7 @@ static ssize_t wiidebug_eeprom_read(struct file *f, char __user *u, size_t s, static const struct file_operations wiidebug_eeprom_fops = { .owner = THIS_MODULE, - .open = wiidebug_eeprom_open, + .open = simple_open, .read = wiidebug_eeprom_read, .llseek = generic_file_llseek, }; diff --git a/drivers/idle/i7300_idle.c b/drivers/idle/i7300_idle.c index c976285..fa080eb 100644 --- a/drivers/idle/i7300_idle.c +++ b/drivers/idle/i7300_idle.c @@ -516,12 +516,6 @@ static struct notifier_block i7300_idle_nb = { MODULE_DEVICE_TABLE(pci, pci_tbl); -int stats_open_generic(struct inode *inode, struct file *fp) -{ - fp->private_data = inode->i_private; - return 0; -} - static ssize_t stats_read_ul(struct file *fp, char __user *ubuf, size_t count, loff_t *off) { @@ -534,7 +528,7 @@ static ssize_t stats_read_ul(struct file *fp, char __user *ubuf, size_t count, } static const struct file_operations idle_fops = { - .open = stats_open_generic, + .open = simple_open, .read = stats_read_ul, .llseek = default_llseek, }; diff --git a/drivers/iommu/omap-iommu-debug.c b/drivers/iommu/omap-iommu-debug.c index 103dbd9..f55fc5d 100644 --- a/drivers/iommu/omap-iommu-debug.c +++ b/drivers/iommu/omap-iommu-debug.c @@ -323,15 +323,9 @@ err_out: return count; } -static int debug_open_generic(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - #define DEBUG_FOPS(name) \ static const struct file_operations debug_##name##_fops = { \ - .open = debug_open_generic, \ + .open = simple_open, \ .read = debug_read_##name, \ .write = debug_write_##name, \ .llseek = generic_file_llseek, \ @@ -339,7 +333,7 @@ static int debug_open_generic(struct inode *inode, struct file *file) #define DEBUG_FOPS_RO(name) \ static const struct file_operations debug_##name##_fops = { \ - .open = debug_open_generic, \ + .open = simple_open, \ .read = debug_read_##name, \ .llseek = generic_file_llseek, \ }; diff --git a/drivers/mfd/aat2870-core.c b/drivers/mfd/aat2870-core.c index 3aa36eb..44a3fdb 100644 --- a/drivers/mfd/aat2870-core.c +++ b/drivers/mfd/aat2870-core.c @@ -262,13 +262,6 @@ static ssize_t aat2870_dump_reg(struct aat2870_data *aat2870, char *buf) return count; } -static int aat2870_reg_open_file(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - - return 0; -} - static ssize_t aat2870_reg_read_file(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { @@ -330,7 +323,7 @@ static ssize_t aat2870_reg_write_file(struct file *file, } static const struct file_operations aat2870_reg_fops = { - .open = aat2870_reg_open_file, + .open = simple_open, .read = aat2870_reg_read_file, .write = aat2870_reg_write_file, }; diff --git a/drivers/mfd/ab3100-core.c b/drivers/mfd/ab3100-core.c index 60107ee..1efad20 100644 --- a/drivers/mfd/ab3100-core.c +++ b/drivers/mfd/ab3100-core.c @@ -483,12 +483,6 @@ struct ab3100_get_set_reg_priv { bool mode; }; -static int ab3100_get_set_reg_open_file(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - static ssize_t ab3100_get_set_reg(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) @@ -583,7 +577,7 @@ static ssize_t ab3100_get_set_reg(struct file *file, } static const struct file_operations ab3100_get_set_reg_fops = { - .open = ab3100_get_set_reg_open_file, + .open = simple_open, .write = ab3100_get_set_reg, .llseek = noop_llseek, }; diff --git a/drivers/misc/ibmasm/ibmasmfs.c b/drivers/misc/ibmasm/ibmasmfs.c index 1c034b8..6673e57 100644 --- a/drivers/misc/ibmasm/ibmasmfs.c +++ b/drivers/misc/ibmasm/ibmasmfs.c @@ -500,12 +500,6 @@ static ssize_t r_heartbeat_file_write(struct file *file, const char __user *buf, return 1; } -static int remote_settings_file_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - static int remote_settings_file_close(struct inode *inode, struct file *file) { return 0; @@ -600,7 +594,7 @@ static const struct file_operations r_heartbeat_fops = { }; static const struct file_operations remote_settings_fops = { - .open = remote_settings_file_open, + .open = simple_open, .release = remote_settings_file_close, .read = remote_settings_file_read, .write = remote_settings_file_write, diff --git a/drivers/mtd/ubi/debug.c b/drivers/mtd/ubi/debug.c index e2cdebf..61af9bb 100644 --- a/drivers/mtd/ubi/debug.c +++ b/drivers/mtd/ubi/debug.c @@ -386,19 +386,11 @@ out: return count; } -static int default_open(struct inode *inode, struct file *file) -{ - if (inode->i_private) - file->private_data = inode->i_private; - - return 0; -} - /* File operations for all UBI debugfs files */ static const struct file_operations dfs_fops = { .read = dfs_file_read, .write = dfs_file_write, - .open = default_open, + .open = simple_open, .llseek = no_llseek, .owner = THIS_MODULE, }; diff --git a/drivers/net/caif/caif_spi.c b/drivers/net/caif/caif_spi.c index 96391c3..b71ce9b 100644 --- a/drivers/net/caif/caif_spi.c +++ b/drivers/net/caif/caif_spi.c @@ -127,12 +127,6 @@ static inline void dev_debugfs_rem(struct cfspi *cfspi) debugfs_remove(cfspi->dbgfs_dir); } -static int dbgfs_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - static ssize_t dbgfs_state(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { @@ -243,13 +237,13 @@ static ssize_t dbgfs_frame(struct file *file, char __user *user_buf, } static const struct file_operations dbgfs_state_fops = { - .open = dbgfs_open, + .open = simple_open, .read = dbgfs_state, .owner = THIS_MODULE }; static const struct file_operations dbgfs_frame_fops = { - .open = dbgfs_open, + .open = simple_open, .read = dbgfs_frame, .owner = THIS_MODULE }; diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c index 05ff076a..b126b98 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -2000,13 +2000,6 @@ static const struct ethtool_ops cxgb_ethtool_ops = { /* * debugfs support */ - -static int mem_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - static ssize_t mem_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { @@ -2050,7 +2043,7 @@ static ssize_t mem_read(struct file *file, char __user *buf, size_t count, static const struct file_operations mem_debugfs_fops = { .owner = THIS_MODULE, - .open = mem_open, + .open = simple_open, .read = mem_read, .llseek = default_llseek, }; diff --git a/drivers/net/wimax/i2400m/debugfs.c b/drivers/net/wimax/i2400m/debugfs.c index 129ba36..4b66ab1 100644 --- a/drivers/net/wimax/i2400m/debugfs.c +++ b/drivers/net/wimax/i2400m/debugfs.c @@ -53,17 +53,6 @@ struct dentry *debugfs_create_netdev_queue_stopped( &fops_netdev_queue_stopped); } - -/* - * inode->i_private has the @data argument to debugfs_create_file() - */ -static -int i2400m_stats_open(struct inode *inode, struct file *filp) -{ - filp->private_data = inode->i_private; - return 0; -} - /* * We don't allow partial reads of this file, as then the reader would * get weirdly confused data as it is updated. @@ -117,7 +106,7 @@ ssize_t i2400m_rx_stats_write(struct file *filp, const char __user *buffer, static const struct file_operations i2400m_rx_stats_fops = { .owner = THIS_MODULE, - .open = i2400m_stats_open, + .open = simple_open, .read = i2400m_rx_stats_read, .write = i2400m_rx_stats_write, .llseek = default_llseek, @@ -170,7 +159,7 @@ ssize_t i2400m_tx_stats_write(struct file *filp, const char __user *buffer, static const struct file_operations i2400m_tx_stats_fops = { .owner = THIS_MODULE, - .open = i2400m_stats_open, + .open = simple_open, .read = i2400m_tx_stats_read, .write = i2400m_tx_stats_write, .llseek = default_llseek, diff --git a/drivers/net/wireless/ath/ath5k/debug.c b/drivers/net/wireless/ath/ath5k/debug.c index 8c5ce8b..e5e8f45 100644 --- a/drivers/net/wireless/ath/ath5k/debug.c +++ b/drivers/net/wireless/ath/ath5k/debug.c @@ -71,13 +71,6 @@ static unsigned int ath5k_debug; module_param_named(debug, ath5k_debug, uint, 0); -static int ath5k_debugfs_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - - /* debugfs: registers */ struct reg { @@ -265,7 +258,7 @@ static ssize_t write_file_beacon(struct file *file, static const struct file_operations fops_beacon = { .read = read_file_beacon, .write = write_file_beacon, - .open = ath5k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -285,7 +278,7 @@ static ssize_t write_file_reset(struct file *file, static const struct file_operations fops_reset = { .write = write_file_reset, - .open = ath5k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = noop_llseek, }; @@ -365,7 +358,7 @@ static ssize_t write_file_debug(struct file *file, static const struct file_operations fops_debug = { .read = read_file_debug, .write = write_file_debug, - .open = ath5k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -477,7 +470,7 @@ static ssize_t write_file_antenna(struct file *file, static const struct file_operations fops_antenna = { .read = read_file_antenna, .write = write_file_antenna, - .open = ath5k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -532,7 +525,7 @@ static ssize_t read_file_misc(struct file *file, char __user *user_buf, static const struct file_operations fops_misc = { .read = read_file_misc, - .open = ath5k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, }; @@ -647,7 +640,7 @@ static ssize_t write_file_frameerrors(struct file *file, static const struct file_operations fops_frameerrors = { .read = read_file_frameerrors, .write = write_file_frameerrors, - .open = ath5k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -810,7 +803,7 @@ static ssize_t write_file_ani(struct file *file, static const struct file_operations fops_ani = { .read = read_file_ani, .write = write_file_ani, - .open = ath5k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -881,7 +874,7 @@ static ssize_t write_file_queue(struct file *file, static const struct file_operations fops_queue = { .read = read_file_queue, .write = write_file_queue, - .open = ath5k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; diff --git a/drivers/net/wireless/ath/ath6kl/debug.c b/drivers/net/wireless/ath/ath6kl/debug.c index 552adb3..d01403a 100644 --- a/drivers/net/wireless/ath/ath6kl/debug.c +++ b/drivers/net/wireless/ath/ath6kl/debug.c @@ -217,12 +217,6 @@ void dump_cred_dist_stats(struct htc_target *target) target->credit_info->cur_free_credits); } -static int ath6kl_debugfs_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - void ath6kl_debug_war(struct ath6kl *ar, enum ath6kl_war war) { switch (war) { @@ -263,7 +257,7 @@ static ssize_t read_file_war_stats(struct file *file, char __user *user_buf, static const struct file_operations fops_war_stats = { .read = read_file_war_stats, - .open = ath6kl_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -488,7 +482,7 @@ static ssize_t ath6kl_fwlog_mask_write(struct file *file, } static const struct file_operations fops_fwlog_mask = { - .open = ath6kl_debugfs_open, + .open = simple_open, .read = ath6kl_fwlog_mask_read, .write = ath6kl_fwlog_mask_write, .owner = THIS_MODULE, @@ -634,7 +628,7 @@ static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf, static const struct file_operations fops_tgt_stats = { .read = read_file_tgt_stats, - .open = ath6kl_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -699,7 +693,7 @@ static ssize_t read_file_credit_dist_stats(struct file *file, static const struct file_operations fops_credit_dist_stats = { .read = read_file_credit_dist_stats, - .open = ath6kl_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -802,7 +796,7 @@ static ssize_t ath6kl_endpoint_stats_write(struct file *file, } static const struct file_operations fops_endpoint_stats = { - .open = ath6kl_debugfs_open, + .open = simple_open, .read = ath6kl_endpoint_stats_read, .write = ath6kl_endpoint_stats_write, .owner = THIS_MODULE, @@ -875,7 +869,7 @@ static ssize_t ath6kl_regread_write(struct file *file, static const struct file_operations fops_diag_reg_read = { .read = ath6kl_regread_read, .write = ath6kl_regread_write, - .open = ath6kl_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -999,7 +993,7 @@ static ssize_t ath6kl_lrssi_roam_read(struct file *file, static const struct file_operations fops_lrssi_roam_threshold = { .read = ath6kl_lrssi_roam_read, .write = ath6kl_lrssi_roam_write, - .open = ath6kl_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -1061,7 +1055,7 @@ static ssize_t ath6kl_regwrite_write(struct file *file, static const struct file_operations fops_diag_reg_write = { .read = ath6kl_regwrite_read, .write = ath6kl_regwrite_write, - .open = ath6kl_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -1166,7 +1160,7 @@ static ssize_t ath6kl_roam_table_read(struct file *file, char __user *user_buf, static const struct file_operations fops_roam_table = { .read = ath6kl_roam_table_read, - .open = ath6kl_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -1204,7 +1198,7 @@ static ssize_t ath6kl_force_roam_write(struct file *file, static const struct file_operations fops_force_roam = { .write = ath6kl_force_roam_write, - .open = ath6kl_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -1244,7 +1238,7 @@ static ssize_t ath6kl_roam_mode_write(struct file *file, static const struct file_operations fops_roam_mode = { .write = ath6kl_roam_mode_write, - .open = ath6kl_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -1286,7 +1280,7 @@ static ssize_t ath6kl_keepalive_write(struct file *file, } static const struct file_operations fops_keepalive = { - .open = ath6kl_debugfs_open, + .open = simple_open, .read = ath6kl_keepalive_read, .write = ath6kl_keepalive_write, .owner = THIS_MODULE, @@ -1331,7 +1325,7 @@ static ssize_t ath6kl_disconnect_timeout_write(struct file *file, } static const struct file_operations fops_disconnect_timeout = { - .open = ath6kl_debugfs_open, + .open = simple_open, .read = ath6kl_disconnect_timeout_read, .write = ath6kl_disconnect_timeout_write, .owner = THIS_MODULE, @@ -1512,7 +1506,7 @@ static ssize_t ath6kl_create_qos_write(struct file *file, static const struct file_operations fops_create_qos = { .write = ath6kl_create_qos_write, - .open = ath6kl_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -1560,7 +1554,7 @@ static ssize_t ath6kl_delete_qos_write(struct file *file, static const struct file_operations fops_delete_qos = { .write = ath6kl_delete_qos_write, - .open = ath6kl_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -1593,7 +1587,7 @@ static ssize_t ath6kl_bgscan_int_write(struct file *file, static const struct file_operations fops_bgscan_int = { .write = ath6kl_bgscan_int_write, - .open = ath6kl_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -1651,7 +1645,7 @@ static ssize_t ath6kl_listen_int_read(struct file *file, static const struct file_operations fops_listen_int = { .read = ath6kl_listen_int_read, .write = ath6kl_listen_int_write, - .open = ath6kl_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -1711,7 +1705,7 @@ static ssize_t ath6kl_power_params_write(struct file *file, static const struct file_operations fops_power_params = { .write = ath6kl_power_params_write, - .open = ath6kl_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index 35d1c8e..ff47b32 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -26,11 +26,6 @@ #define REG_READ_D(_ah, _reg) \ ath9k_hw_common(_ah)->ops->read((_ah), (_reg)) -static int ath9k_debugfs_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} static ssize_t ath9k_debugfs_read_buf(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) @@ -83,7 +78,7 @@ static ssize_t write_file_debug(struct file *file, const char __user *user_buf, static const struct file_operations fops_debug = { .read = read_file_debug, .write = write_file_debug, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -129,7 +124,7 @@ static ssize_t write_file_tx_chainmask(struct file *file, const char __user *use static const struct file_operations fops_tx_chainmask = { .read = read_file_tx_chainmask, .write = write_file_tx_chainmask, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -172,7 +167,7 @@ static ssize_t write_file_rx_chainmask(struct file *file, const char __user *use static const struct file_operations fops_rx_chainmask = { .read = read_file_rx_chainmask, .write = write_file_rx_chainmask, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -223,7 +218,7 @@ static ssize_t write_file_disable_ani(struct file *file, static const struct file_operations fops_disable_ani = { .read = read_file_disable_ani, .write = write_file_disable_ani, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -324,7 +319,7 @@ static ssize_t read_file_dma(struct file *file, char __user *user_buf, static const struct file_operations fops_dma = { .read = read_file_dma, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -446,7 +441,7 @@ static ssize_t read_file_interrupt(struct file *file, char __user *user_buf, static const struct file_operations fops_interrupt = { .read = read_file_interrupt, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -852,28 +847,28 @@ void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf, static const struct file_operations fops_xmit = { .read = read_file_xmit, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; static const struct file_operations fops_stations = { .read = read_file_stations, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; static const struct file_operations fops_misc = { .read = read_file_misc, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; static const struct file_operations fops_reset = { .read = read_file_reset, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -1016,7 +1011,7 @@ void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs) static const struct file_operations fops_recv = { .read = read_file_recv, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -1055,7 +1050,7 @@ static ssize_t write_file_regidx(struct file *file, const char __user *user_buf, static const struct file_operations fops_regidx = { .read = read_file_regidx, .write = write_file_regidx, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -1102,7 +1097,7 @@ static ssize_t write_file_regval(struct file *file, const char __user *user_buf, static const struct file_operations fops_regval = { .read = read_file_regval, .write = write_file_regval, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -1191,7 +1186,7 @@ static ssize_t read_file_dump_nfcal(struct file *file, char __user *user_buf, static const struct file_operations fops_dump_nfcal = { .read = read_file_dump_nfcal, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -1219,7 +1214,7 @@ static ssize_t read_file_base_eeprom(struct file *file, char __user *user_buf, static const struct file_operations fops_base_eeprom = { .read = read_file_base_eeprom, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -1247,7 +1242,7 @@ static ssize_t read_file_modal_eeprom(struct file *file, char __user *user_buf, static const struct file_operations fops_modal_eeprom = { .read = read_file_modal_eeprom, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; diff --git a/drivers/net/wireless/ath/ath9k/dfs_debug.c b/drivers/net/wireless/ath/ath9k/dfs_debug.c index 106d031..4364c10 100644 --- a/drivers/net/wireless/ath/ath9k/dfs_debug.c +++ b/drivers/net/wireless/ath/ath9k/dfs_debug.c @@ -60,16 +60,9 @@ static ssize_t read_file_dfs(struct file *file, char __user *user_buf, return retval; } -static int ath9k_dfs_debugfs_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - - return 0; -} - static const struct file_operations fops_dfs_stats = { .read = read_file_dfs, - .open = ath9k_dfs_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_debug.c b/drivers/net/wireless/ath/ath9k/htc_drv_debug.c index d3ff33c..3035deb 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_debug.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_debug.c @@ -16,12 +16,6 @@ #include "htc.h" -static int ath9k_debugfs_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - static ssize_t read_file_tgt_int_stats(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { @@ -75,7 +69,7 @@ static ssize_t read_file_tgt_int_stats(struct file *file, char __user *user_buf, static const struct file_operations fops_tgt_int_stats = { .read = read_file_tgt_int_stats, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -145,7 +139,7 @@ static ssize_t read_file_tgt_tx_stats(struct file *file, char __user *user_buf, static const struct file_operations fops_tgt_tx_stats = { .read = read_file_tgt_tx_stats, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -191,7 +185,7 @@ static ssize_t read_file_tgt_rx_stats(struct file *file, char __user *user_buf, static const struct file_operations fops_tgt_rx_stats = { .read = read_file_tgt_rx_stats, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -243,7 +237,7 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf, static const struct file_operations fops_xmit = { .read = read_file_xmit, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -364,7 +358,7 @@ static ssize_t read_file_recv(struct file *file, char __user *user_buf, static const struct file_operations fops_recv = { .read = read_file_recv, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -399,7 +393,7 @@ static ssize_t read_file_slot(struct file *file, char __user *user_buf, static const struct file_operations fops_slot = { .read = read_file_slot, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -446,7 +440,7 @@ static ssize_t read_file_queue(struct file *file, char __user *user_buf, static const struct file_operations fops_queue = { .read = read_file_queue, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -487,7 +481,7 @@ static ssize_t write_file_debug(struct file *file, const char __user *user_buf, static const struct file_operations fops_debug = { .read = read_file_debug, .write = write_file_debug, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -636,7 +630,7 @@ static ssize_t read_file_base_eeprom(struct file *file, char __user *user_buf, static const struct file_operations fops_base_eeprom = { .read = read_file_base_eeprom, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; @@ -917,7 +911,7 @@ static ssize_t read_file_modal_eeprom(struct file *file, char __user *user_buf, static const struct file_operations fops_modal_eeprom = { .read = read_file_modal_eeprom, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, }; diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c index 4f84849..08bb455 100644 --- a/drivers/net/wireless/ath/ath9k/rc.c +++ b/drivers/net/wireless/ath/ath9k/rc.c @@ -1480,12 +1480,6 @@ static void ath_rate_update(void *priv, struct ieee80211_supported_band *sband, #ifdef CONFIG_ATH9K_DEBUGFS -static int ath9k_debugfs_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - static ssize_t read_file_rcstat(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { @@ -1553,7 +1547,7 @@ static ssize_t read_file_rcstat(struct file *file, char __user *user_buf, static const struct file_operations fops_rcstat = { .read = read_file_rcstat, - .open = ath9k_debugfs_open, + .open = simple_open, .owner = THIS_MODULE }; diff --git a/drivers/net/wireless/ath/carl9170/debug.c b/drivers/net/wireless/ath/carl9170/debug.c index 3c16422..93fe600 100644 --- a/drivers/net/wireless/ath/carl9170/debug.c +++ b/drivers/net/wireless/ath/carl9170/debug.c @@ -48,11 +48,6 @@ #define ADD(buf, off, max, fmt, args...) \ off += snprintf(&buf[off], max - off, fmt, ##args); -static int carl9170_debugfs_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} struct carl9170_debugfs_fops { unsigned int read_bufsize; @@ -178,7 +173,7 @@ static const struct carl9170_debugfs_fops carl_debugfs_##name ##_ops = {\ .attr = _attr, \ .req_dev_state = _dstate, \ .fops = { \ - .open = carl9170_debugfs_open, \ + .open = simple_open, \ .read = carl9170_debugfs_read, \ .write = carl9170_debugfs_write, \ .owner = THIS_MODULE \ diff --git a/drivers/net/wireless/b43/debugfs.c b/drivers/net/wireless/b43/debugfs.c index e751fde..e807bd9 100644 --- a/drivers/net/wireless/b43/debugfs.c +++ b/drivers/net/wireless/b43/debugfs.c @@ -500,12 +500,6 @@ out: #undef fappend -static int b43_debugfs_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - static ssize_t b43_debugfs_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { @@ -624,7 +618,7 @@ out_unlock: .read = _read, \ .write = _write, \ .fops = { \ - .open = b43_debugfs_open, \ + .open = simple_open, \ .read = b43_debugfs_read, \ .write = b43_debugfs_write, \ .llseek = generic_file_llseek, \ diff --git a/drivers/net/wireless/b43legacy/debugfs.c b/drivers/net/wireless/b43legacy/debugfs.c index 5e28ad0..1965edb 100644 --- a/drivers/net/wireless/b43legacy/debugfs.c +++ b/drivers/net/wireless/b43legacy/debugfs.c @@ -197,12 +197,6 @@ static int restart_write_file(struct b43legacy_wldev *dev, const char *buf, size #undef fappend -static int b43legacy_debugfs_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - static ssize_t b43legacy_debugfs_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { @@ -331,7 +325,7 @@ out_unlock: .read = _read, \ .write = _write, \ .fops = { \ - .open = b43legacy_debugfs_open, \ + .open = simple_open, \ .read = b43legacy_debugfs_read, \ .write = b43legacy_debugfs_write, \ .llseek = generic_file_llseek, \ diff --git a/drivers/net/wireless/iwlegacy/3945-rs.c b/drivers/net/wireless/iwlegacy/3945-rs.c index 70bee1a..4b10157 100644 --- a/drivers/net/wireless/iwlegacy/3945-rs.c +++ b/drivers/net/wireless/iwlegacy/3945-rs.c @@ -821,12 +821,6 @@ out: } #ifdef CONFIG_MAC80211_DEBUGFS -static int -il3945_open_file_generic(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} static ssize_t il3945_sta_dbgfs_stats_table_read(struct file *file, char __user *user_buf, @@ -862,7 +856,7 @@ il3945_sta_dbgfs_stats_table_read(struct file *file, char __user *user_buf, static const struct file_operations rs_sta_dbgfs_stats_table_ops = { .read = il3945_sta_dbgfs_stats_table_read, - .open = il3945_open_file_generic, + .open = simple_open, .llseek = default_llseek, }; diff --git a/drivers/net/wireless/iwlegacy/4965-rs.c b/drivers/net/wireless/iwlegacy/4965-rs.c index d7e2856..11ab124 100644 --- a/drivers/net/wireless/iwlegacy/4965-rs.c +++ b/drivers/net/wireless/iwlegacy/4965-rs.c @@ -2518,12 +2518,6 @@ il4965_rs_free_sta(void *il_r, struct ieee80211_sta *sta, void *il_sta) } #ifdef CONFIG_MAC80211_DEBUGFS -static int -il4965_open_file_generic(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} static void il4965_rs_dbgfs_set_mcs(struct il_lq_sta *lq_sta, u32 * rate_n_flags, int idx) @@ -2695,7 +2689,7 @@ il4965_rs_sta_dbgfs_scale_table_read(struct file *file, char __user *user_buf, static const struct file_operations rs_sta_dbgfs_scale_table_ops = { .write = il4965_rs_sta_dbgfs_scale_table_write, .read = il4965_rs_sta_dbgfs_scale_table_read, - .open = il4965_open_file_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -2740,7 +2734,7 @@ il4965_rs_sta_dbgfs_stats_table_read(struct file *file, char __user *user_buf, static const struct file_operations rs_sta_dbgfs_stats_table_ops = { .read = il4965_rs_sta_dbgfs_stats_table_read, - .open = il4965_open_file_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -2768,7 +2762,7 @@ il4965_rs_sta_dbgfs_rate_scale_data_read(struct file *file, static const struct file_operations rs_sta_dbgfs_rate_scale_data_ops = { .read = il4965_rs_sta_dbgfs_rate_scale_data_read, - .open = il4965_open_file_generic, + .open = simple_open, .llseek = default_llseek, }; diff --git a/drivers/net/wireless/iwlegacy/debug.c b/drivers/net/wireless/iwlegacy/debug.c index 2298491..eff2650 100644 --- a/drivers/net/wireless/iwlegacy/debug.c +++ b/drivers/net/wireless/iwlegacy/debug.c @@ -160,18 +160,12 @@ static ssize_t il_dbgfs_##name##_write(struct file *file, \ const char __user *user_buf, \ size_t count, loff_t *ppos); -static int -il_dbgfs_open_file_generic(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} #define DEBUGFS_READ_FILE_OPS(name) \ DEBUGFS_READ_FUNC(name); \ static const struct file_operations il_dbgfs_##name##_ops = { \ .read = il_dbgfs_##name##_read, \ - .open = il_dbgfs_open_file_generic, \ + .open = simple_open, \ .llseek = generic_file_llseek, \ }; @@ -179,7 +173,7 @@ static const struct file_operations il_dbgfs_##name##_ops = { \ DEBUGFS_WRITE_FUNC(name); \ static const struct file_operations il_dbgfs_##name##_ops = { \ .write = il_dbgfs_##name##_write, \ - .open = il_dbgfs_open_file_generic, \ + .open = simple_open, \ .llseek = generic_file_llseek, \ }; @@ -189,7 +183,7 @@ static const struct file_operations il_dbgfs_##name##_ops = { \ static const struct file_operations il_dbgfs_##name##_ops = { \ .write = il_dbgfs_##name##_write, \ .read = il_dbgfs_##name##_read, \ - .open = il_dbgfs_open_file_generic, \ + .open = simple_open, \ .llseek = generic_file_llseek, \ }; diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c index 53f8c51..7e590b3 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c @@ -3083,11 +3083,6 @@ static void rs_free_sta(void *priv_r, struct ieee80211_sta *sta, } #ifdef CONFIG_MAC80211_DEBUGFS -static int open_file_generic(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} static void rs_dbgfs_set_mcs(struct iwl_lq_sta *lq_sta, u32 *rate_n_flags, int index) { @@ -3226,7 +3221,7 @@ static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file, static const struct file_operations rs_sta_dbgfs_scale_table_ops = { .write = rs_sta_dbgfs_scale_table_write, .read = rs_sta_dbgfs_scale_table_read, - .open = open_file_generic, + .open = simple_open, .llseek = default_llseek, }; static ssize_t rs_sta_dbgfs_stats_table_read(struct file *file, @@ -3269,7 +3264,7 @@ static ssize_t rs_sta_dbgfs_stats_table_read(struct file *file, static const struct file_operations rs_sta_dbgfs_stats_table_ops = { .read = rs_sta_dbgfs_stats_table_read, - .open = open_file_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -3295,7 +3290,7 @@ static ssize_t rs_sta_dbgfs_rate_scale_data_read(struct file *file, static const struct file_operations rs_sta_dbgfs_rate_scale_data_ops = { .read = rs_sta_dbgfs_rate_scale_data_read, - .open = open_file_generic, + .open = simple_open, .llseek = default_llseek, }; diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c index b7b1c04..2bbaebd 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c +++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c @@ -84,17 +84,11 @@ static ssize_t iwl_dbgfs_##name##_write(struct file *file, \ size_t count, loff_t *ppos); -static int iwl_dbgfs_open_file_generic(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - #define DEBUGFS_READ_FILE_OPS(name) \ DEBUGFS_READ_FUNC(name); \ static const struct file_operations iwl_dbgfs_##name##_ops = { \ .read = iwl_dbgfs_##name##_read, \ - .open = iwl_dbgfs_open_file_generic, \ + .open = simple_open, \ .llseek = generic_file_llseek, \ }; @@ -102,7 +96,7 @@ static const struct file_operations iwl_dbgfs_##name##_ops = { \ DEBUGFS_WRITE_FUNC(name); \ static const struct file_operations iwl_dbgfs_##name##_ops = { \ .write = iwl_dbgfs_##name##_write, \ - .open = iwl_dbgfs_open_file_generic, \ + .open = simple_open, \ .llseek = generic_file_llseek, \ }; @@ -113,7 +107,7 @@ static const struct file_operations iwl_dbgfs_##name##_ops = { \ static const struct file_operations iwl_dbgfs_##name##_ops = { \ .write = iwl_dbgfs_##name##_write, \ .read = iwl_dbgfs_##name##_read, \ - .open = iwl_dbgfs_open_file_generic, \ + .open = simple_open, \ .llseek = generic_file_llseek, \ }; diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c index b4f796c..4d7b30d 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c +++ b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c @@ -1898,17 +1898,11 @@ static ssize_t iwl_dbgfs_##name##_write(struct file *file, \ size_t count, loff_t *ppos); -static int iwl_dbgfs_open_file_generic(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - #define DEBUGFS_READ_FILE_OPS(name) \ DEBUGFS_READ_FUNC(name); \ static const struct file_operations iwl_dbgfs_##name##_ops = { \ .read = iwl_dbgfs_##name##_read, \ - .open = iwl_dbgfs_open_file_generic, \ + .open = simple_open, \ .llseek = generic_file_llseek, \ }; @@ -1916,7 +1910,7 @@ static const struct file_operations iwl_dbgfs_##name##_ops = { \ DEBUGFS_WRITE_FUNC(name); \ static const struct file_operations iwl_dbgfs_##name##_ops = { \ .write = iwl_dbgfs_##name##_write, \ - .open = iwl_dbgfs_open_file_generic, \ + .open = simple_open, \ .llseek = generic_file_llseek, \ }; @@ -1926,7 +1920,7 @@ static const struct file_operations iwl_dbgfs_##name##_ops = { \ static const struct file_operations iwl_dbgfs_##name##_ops = { \ .write = iwl_dbgfs_##name##_write, \ .read = iwl_dbgfs_##name##_read, \ - .open = iwl_dbgfs_open_file_generic, \ + .open = simple_open, \ .llseek = generic_file_llseek, \ }; diff --git a/drivers/net/wireless/iwmc3200wifi/debugfs.c b/drivers/net/wireless/iwmc3200wifi/debugfs.c index 87eef57..b6199d1 100644 --- a/drivers/net/wireless/iwmc3200wifi/debugfs.c +++ b/drivers/net/wireless/iwmc3200wifi/debugfs.c @@ -99,12 +99,6 @@ DEFINE_SIMPLE_ATTRIBUTE(fops_iwm_dbg_modules, iwm_debugfs_u32_read, iwm_debugfs_dbg_modules_write, "%llu\n"); -static int iwm_generic_open(struct inode *inode, struct file *filp) -{ - filp->private_data = inode->i_private; - return 0; -} - static ssize_t iwm_debugfs_txq_read(struct file *filp, char __user *buffer, size_t count, loff_t *ppos) @@ -401,28 +395,28 @@ out: static const struct file_operations iwm_debugfs_txq_fops = { .owner = THIS_MODULE, - .open = iwm_generic_open, + .open = simple_open, .read = iwm_debugfs_txq_read, .llseek = default_llseek, }; static const struct file_operations iwm_debugfs_tx_credit_fops = { .owner = THIS_MODULE, - .open = iwm_generic_open, + .open = simple_open, .read = iwm_debugfs_tx_credit_read, .llseek = default_llseek, }; static const struct file_operations iwm_debugfs_rx_ticket_fops = { .owner = THIS_MODULE, - .open = iwm_generic_open, + .open = simple_open, .read = iwm_debugfs_rx_ticket_read, .llseek = default_llseek, }; static const struct file_operations iwm_debugfs_fw_err_fops = { .owner = THIS_MODULE, - .open = iwm_generic_open, + .open = simple_open, .read = iwm_debugfs_fw_err_read, .llseek = default_llseek, }; diff --git a/drivers/net/wireless/iwmc3200wifi/sdio.c b/drivers/net/wireless/iwmc3200wifi/sdio.c index 764b40d..0042f20 100644 --- a/drivers/net/wireless/iwmc3200wifi/sdio.c +++ b/drivers/net/wireless/iwmc3200wifi/sdio.c @@ -264,13 +264,6 @@ static int if_sdio_send_chunk(struct iwm_priv *iwm, u8 *buf, int count) return ret; } -/* debugfs hooks */ -static int iwm_debugfs_sdio_open(struct inode *inode, struct file *filp) -{ - filp->private_data = inode->i_private; - return 0; -} - static ssize_t iwm_debugfs_sdio_read(struct file *filp, char __user *buffer, size_t count, loff_t *ppos) { @@ -363,7 +356,7 @@ err: static const struct file_operations iwm_debugfs_sdio_fops = { .owner = THIS_MODULE, - .open = iwm_debugfs_sdio_open, + .open = simple_open, .read = iwm_debugfs_sdio_read, .llseek = default_llseek, }; diff --git a/drivers/net/wireless/libertas/debugfs.c b/drivers/net/wireless/libertas/debugfs.c index c192671..a06cc28 100644 --- a/drivers/net/wireless/libertas/debugfs.c +++ b/drivers/net/wireless/libertas/debugfs.c @@ -21,12 +21,6 @@ static char *szStates[] = { static void lbs_debug_init(struct lbs_private *priv); #endif -static int open_file_generic(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - static ssize_t write_file_dummy(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { @@ -696,7 +690,7 @@ out_unlock: #define FOPS(fread, fwrite) { \ .owner = THIS_MODULE, \ - .open = open_file_generic, \ + .open = simple_open, \ .read = (fread), \ .write = (fwrite), \ .llseek = generic_file_llseek, \ @@ -962,7 +956,7 @@ static ssize_t lbs_debugfs_write(struct file *f, const char __user *buf, static const struct file_operations lbs_debug_fops = { .owner = THIS_MODULE, - .open = open_file_generic, + .open = simple_open, .write = lbs_debugfs_write, .read = lbs_debugfs_read, .llseek = default_llseek, diff --git a/drivers/net/wireless/mwifiex/debugfs.c b/drivers/net/wireless/mwifiex/debugfs.c index d26a78b..1a84507 100644 --- a/drivers/net/wireless/mwifiex/debugfs.c +++ b/drivers/net/wireless/mwifiex/debugfs.c @@ -140,18 +140,6 @@ static struct mwifiex_debug_data items[] = { static int num_of_items = ARRAY_SIZE(items); /* - * Generic proc file open handler. - * - * This function is called every time a file is accessed for read or write. - */ -static int -mwifiex_open_generic(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - -/* * Proc info file read handler. * * This function is called when the 'info' file is opened for reading. @@ -676,19 +664,19 @@ done: static const struct file_operations mwifiex_dfs_##name##_fops = { \ .read = mwifiex_##name##_read, \ .write = mwifiex_##name##_write, \ - .open = mwifiex_open_generic, \ + .open = simple_open, \ }; #define MWIFIEX_DFS_FILE_READ_OPS(name) \ static const struct file_operations mwifiex_dfs_##name##_fops = { \ .read = mwifiex_##name##_read, \ - .open = mwifiex_open_generic, \ + .open = simple_open, \ }; #define MWIFIEX_DFS_FILE_WRITE_OPS(name) \ static const struct file_operations mwifiex_dfs_##name##_fops = { \ .write = mwifiex_##name##_write, \ - .open = mwifiex_open_generic, \ + .open = simple_open, \ }; diff --git a/drivers/net/wireless/wl1251/debugfs.c b/drivers/net/wireless/wl1251/debugfs.c index 6c27400..448da1f 100644 --- a/drivers/net/wireless/wl1251/debugfs.c +++ b/drivers/net/wireless/wl1251/debugfs.c @@ -47,7 +47,7 @@ static ssize_t name## _read(struct file *file, char __user *userbuf, \ \ static const struct file_operations name## _ops = { \ .read = name## _read, \ - .open = wl1251_open_file_generic, \ + .open = simple_open, \ .llseek = generic_file_llseek, \ }; @@ -84,7 +84,7 @@ static ssize_t sub## _ ##name## _read(struct file *file, \ \ static const struct file_operations sub## _ ##name## _ops = { \ .read = sub## _ ##name## _read, \ - .open = wl1251_open_file_generic, \ + .open = simple_open, \ .llseek = generic_file_llseek, \ }; @@ -117,12 +117,6 @@ out: mutex_unlock(&wl->mutex); } -static int wl1251_open_file_generic(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, 20, "%u"); DEBUGFS_FWSTATS_FILE(rx, out_of_mem, 20, "%u"); @@ -235,7 +229,7 @@ static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf, static const struct file_operations tx_queue_len_ops = { .read = tx_queue_len_read, - .open = wl1251_open_file_generic, + .open = simple_open, .llseek = generic_file_llseek, }; @@ -257,7 +251,7 @@ static ssize_t tx_queue_status_read(struct file *file, char __user *userbuf, static const struct file_operations tx_queue_status_ops = { .read = tx_queue_status_read, - .open = wl1251_open_file_generic, + .open = simple_open, .llseek = generic_file_llseek, }; diff --git a/drivers/net/wireless/wl12xx/debugfs.c b/drivers/net/wireless/wl12xx/debugfs.c index e1cf727..564d495 100644 --- a/drivers/net/wireless/wl12xx/debugfs.c +++ b/drivers/net/wireless/wl12xx/debugfs.c @@ -63,7 +63,7 @@ static ssize_t name## _read(struct file *file, char __user *userbuf, \ \ static const struct file_operations name## _ops = { \ .read = name## _read, \ - .open = wl1271_open_file_generic, \ + .open = simple_open, \ .llseek = generic_file_llseek, \ }; @@ -96,7 +96,7 @@ static ssize_t sub## _ ##name## _read(struct file *file, \ \ static const struct file_operations sub## _ ##name## _ops = { \ .read = sub## _ ##name## _read, \ - .open = wl1271_open_file_generic, \ + .open = simple_open, \ .llseek = generic_file_llseek, \ }; @@ -126,12 +126,6 @@ out: mutex_unlock(&wl->mutex); } -static int wl1271_open_file_generic(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, "%u"); DEBUGFS_FWSTATS_FILE(rx, out_of_mem, "%u"); @@ -243,7 +237,7 @@ static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf, static const struct file_operations tx_queue_len_ops = { .read = tx_queue_len_read, - .open = wl1271_open_file_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -289,7 +283,7 @@ static ssize_t gpio_power_write(struct file *file, static const struct file_operations gpio_power_ops = { .read = gpio_power_read, .write = gpio_power_write, - .open = wl1271_open_file_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -308,7 +302,7 @@ static ssize_t start_recovery_write(struct file *file, static const struct file_operations start_recovery_ops = { .write = start_recovery_write, - .open = wl1271_open_file_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -372,7 +366,7 @@ out: static const struct file_operations dynamic_ps_timeout_ops = { .read = dynamic_ps_timeout_read, .write = dynamic_ps_timeout_write, - .open = wl1271_open_file_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -441,7 +435,7 @@ out: static const struct file_operations forced_ps_ops = { .read = forced_ps_read, .write = forced_ps_write, - .open = wl1271_open_file_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -483,7 +477,7 @@ static ssize_t split_scan_timeout_write(struct file *file, static const struct file_operations split_scan_timeout_ops = { .read = split_scan_timeout_read, .write = split_scan_timeout_write, - .open = wl1271_open_file_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -566,7 +560,7 @@ static ssize_t driver_state_read(struct file *file, char __user *user_buf, static const struct file_operations driver_state_ops = { .read = driver_state_read, - .open = wl1271_open_file_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -675,7 +669,7 @@ static ssize_t vifs_state_read(struct file *file, char __user *user_buf, static const struct file_operations vifs_state_ops = { .read = vifs_state_read, - .open = wl1271_open_file_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -733,7 +727,7 @@ static ssize_t dtim_interval_write(struct file *file, static const struct file_operations dtim_interval_ops = { .read = dtim_interval_read, .write = dtim_interval_write, - .open = wl1271_open_file_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -791,7 +785,7 @@ static ssize_t suspend_dtim_interval_write(struct file *file, static const struct file_operations suspend_dtim_interval_ops = { .read = suspend_dtim_interval_read, .write = suspend_dtim_interval_write, - .open = wl1271_open_file_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -849,7 +843,7 @@ static ssize_t beacon_interval_write(struct file *file, static const struct file_operations beacon_interval_ops = { .read = beacon_interval_read, .write = beacon_interval_write, - .open = wl1271_open_file_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -904,7 +898,7 @@ static ssize_t rx_streaming_interval_read(struct file *file, static const struct file_operations rx_streaming_interval_ops = { .read = rx_streaming_interval_read, .write = rx_streaming_interval_write, - .open = wl1271_open_file_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -959,7 +953,7 @@ static ssize_t rx_streaming_always_read(struct file *file, static const struct file_operations rx_streaming_always_ops = { .read = rx_streaming_always_read, .write = rx_streaming_always_write, - .open = wl1271_open_file_generic, + .open = simple_open, .llseek = default_llseek, }; @@ -1003,7 +997,7 @@ out: static const struct file_operations beacon_filtering_ops = { .write = beacon_filtering_write, - .open = wl1271_open_file_generic, + .open = simple_open, .llseek = default_llseek, }; diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c index ee8fd03..849357c 100644 --- a/drivers/oprofile/oprofilefs.c +++ b/drivers/oprofile/oprofilefs.c @@ -117,25 +117,17 @@ static ssize_t ulong_write_file(struct file *file, char const __user *buf, size_ } -static int default_open(struct inode *inode, struct file *filp) -{ - if (inode->i_private) - filp->private_data = inode->i_private; - return 0; -} - - static const struct file_operations ulong_fops = { .read = ulong_read_file, .write = ulong_write_file, - .open = default_open, + .open = simple_open, .llseek = default_llseek, }; static const struct file_operations ulong_ro_fops = { .read = ulong_read_file, - .open = default_open, + .open = simple_open, .llseek = default_llseek, }; @@ -187,7 +179,7 @@ static ssize_t atomic_read_file(struct file *file, char __user *buf, size_t coun static const struct file_operations atomic_ro_fops = { .read = atomic_read_file, - .open = default_open, + .open = simple_open, .llseek = default_llseek, }; diff --git a/drivers/remoteproc/remoteproc_debugfs.c b/drivers/remoteproc/remoteproc_debugfs.c index 70277a5..85d31a6 100644 --- a/drivers/remoteproc/remoteproc_debugfs.c +++ b/drivers/remoteproc/remoteproc_debugfs.c @@ -50,16 +50,9 @@ static ssize_t rproc_trace_read(struct file *filp, char __user *userbuf, return simple_read_from_buffer(userbuf, count, ppos, trace->va, len); } -static int rproc_open_generic(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - - return 0; -} - static const struct file_operations trace_rproc_ops = { .read = rproc_trace_read, - .open = rproc_open_generic, + .open = simple_open, .llseek = generic_file_llseek, }; @@ -94,7 +87,7 @@ static ssize_t rproc_state_read(struct file *filp, char __user *userbuf, static const struct file_operations rproc_state_ops = { .read = rproc_state_read, - .open = rproc_open_generic, + .open = simple_open, .llseek = generic_file_llseek, }; @@ -114,7 +107,7 @@ static ssize_t rproc_name_read(struct file *filp, char __user *userbuf, static const struct file_operations rproc_name_ops = { .read = rproc_name_read, - .open = rproc_open_generic, + .open = simple_open, .llseek = generic_file_llseek, }; diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c index 22e17be..34f7cf7 100644 --- a/drivers/scsi/lpfc/lpfc_debugfs.c +++ b/drivers/scsi/lpfc/lpfc_debugfs.c @@ -997,13 +997,6 @@ lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf, return nbytes; } -static int -lpfc_debugfs_dif_err_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - static ssize_t lpfc_debugfs_dif_err_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) @@ -3521,7 +3514,7 @@ static const struct file_operations lpfc_debugfs_op_dumpDif = { #undef lpfc_debugfs_op_dif_err static const struct file_operations lpfc_debugfs_op_dif_err = { .owner = THIS_MODULE, - .open = lpfc_debugfs_dif_err_open, + .open = simple_open, .llseek = lpfc_debugfs_lseek, .read = lpfc_debugfs_dif_err_read, .write = lpfc_debugfs_dif_err_write, diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c index 082458d..d1a495f 100644 --- a/drivers/spi/spi-dw.c +++ b/drivers/spi/spi-dw.c @@ -63,12 +63,6 @@ struct chip_data { }; #ifdef CONFIG_DEBUG_FS -static int spi_show_regs_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - #define SPI_REGS_BUFSIZE 1024 static ssize_t spi_show_regs(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) @@ -128,7 +122,7 @@ static ssize_t spi_show_regs(struct file *file, char __user *user_buf, static const struct file_operations mrst_spi_regs_ops = { .owner = THIS_MODULE, - .open = spi_show_regs_open, + .open = simple_open, .read = spi_show_regs, .llseek = default_llseek, }; diff --git a/drivers/tty/serial/mfd.c b/drivers/tty/serial/mfd.c index a9234ba..c4b50af 100644 --- a/drivers/tty/serial/mfd.c +++ b/drivers/tty/serial/mfd.c @@ -127,11 +127,6 @@ static inline void serial_out(struct uart_hsu_port *up, int offset, int value) #define HSU_REGS_BUFSIZE 1024 -static int hsu_show_regs_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} static ssize_t port_show_regs(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) @@ -231,14 +226,14 @@ static ssize_t dma_show_regs(struct file *file, char __user *user_buf, static const struct file_operations port_regs_ops = { .owner = THIS_MODULE, - .open = hsu_show_regs_open, + .open = simple_open, .read = port_show_regs, .llseek = default_llseek, }; static const struct file_operations dma_regs_ops = { .owner = THIS_MODULE, - .open = hsu_show_regs_open, + .open = simple_open, .read = dma_show_regs, .llseek = default_llseek, }; diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c index 332f2eb..46ec722 100644 --- a/drivers/tty/serial/pch_uart.c +++ b/drivers/tty/serial/pch_uart.c @@ -304,11 +304,7 @@ static const int trigger_level_1[4] = { 1, 1, 1, 1 }; #ifdef CONFIG_DEBUG_FS #define PCH_REGS_BUFSIZE 1024 -static int pch_show_regs_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} + static ssize_t port_show_regs(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) @@ -362,7 +358,7 @@ static ssize_t port_show_regs(struct file *file, char __user *user_buf, static const struct file_operations port_regs_ops = { .owner = THIS_MODULE, - .open = pch_show_regs_open, + .open = simple_open, .read = port_show_regs, .llseek = default_llseek, }; diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c index cefa0c8..d2b9af5 100644 --- a/drivers/usb/core/inode.c +++ b/drivers/usb/core/inode.c @@ -428,18 +428,10 @@ static loff_t default_file_lseek (struct file *file, loff_t offset, int orig) return retval; } -static int default_open (struct inode *inode, struct file *file) -{ - if (inode->i_private) - file->private_data = inode->i_private; - - return 0; -} - static const struct file_operations default_file_operations = { .read = default_read_file, .write = default_write_file, - .open = default_open, + .open = simple_open, .llseek = default_file_lseek, }; diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c index fd9109d..680e1a3 100644 --- a/drivers/usb/host/ehci-dbg.c +++ b/drivers/usb/host/ehci-dbg.c @@ -352,7 +352,6 @@ static int debug_async_open(struct inode *, struct file *); static int debug_periodic_open(struct inode *, struct file *); static int debug_registers_open(struct inode *, struct file *); static int debug_async_open(struct inode *, struct file *); -static int debug_lpm_open(struct inode *, struct file *); static ssize_t debug_lpm_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos); static ssize_t debug_lpm_write(struct file *file, const char __user *buffer, @@ -385,7 +384,7 @@ static const struct file_operations debug_registers_fops = { }; static const struct file_operations debug_lpm_fops = { .owner = THIS_MODULE, - .open = debug_lpm_open, + .open = simple_open, .read = debug_lpm_read, .write = debug_lpm_write, .release = debug_lpm_close, @@ -970,12 +969,6 @@ static int debug_registers_open(struct inode *inode, struct file *file) return file->private_data ? 0 : -ENOMEM; } -static int debug_lpm_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - static int debug_lpm_close(struct inode *inode, struct file *file) { return 0; diff --git a/drivers/uwb/uwb-debug.c b/drivers/uwb/uwb-debug.c index 2eecec0..6ec45be 100644 --- a/drivers/uwb/uwb-debug.c +++ b/drivers/uwb/uwb-debug.c @@ -159,13 +159,6 @@ static int cmd_ie_rm(struct uwb_rc *rc, struct uwb_dbg_cmd_ie *ie_to_rm) return uwb_rc_ie_rm(rc, ie_to_rm->data[0]); } -static int command_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - - return 0; -} - static ssize_t command_write(struct file *file, const char __user *buf, size_t len, loff_t *off) { @@ -206,7 +199,7 @@ static ssize_t command_write(struct file *file, const char __user *buf, } static const struct file_operations command_fops = { - .open = command_open, + .open = simple_open, .write = command_write, .read = NULL, .llseek = no_llseek, diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c index 21e9360..5dfafdd 100644 --- a/fs/debugfs/file.c +++ b/fs/debugfs/file.c @@ -33,18 +33,10 @@ static ssize_t default_write_file(struct file *file, const char __user *buf, return count; } -static int default_open(struct inode *inode, struct file *file) -{ - if (inode->i_private) - file->private_data = inode->i_private; - - return 0; -} - const struct file_operations debugfs_file_operations = { .read = default_read_file, .write = default_write_file, - .open = default_open, + .open = simple_open, .llseek = noop_llseek, }; @@ -447,7 +439,7 @@ static ssize_t write_file_bool(struct file *file, const char __user *user_buf, static const struct file_operations fops_bool = { .read = read_file_bool, .write = write_file_bool, - .open = default_open, + .open = simple_open, .llseek = default_llseek, }; @@ -492,7 +484,7 @@ static ssize_t read_file_blob(struct file *file, char __user *user_buf, static const struct file_operations fops_blob = { .read = read_file_blob, - .open = default_open, + .open = simple_open, .llseek = default_llseek, }; diff --git a/fs/dlm/debug_fs.c b/fs/dlm/debug_fs.c index 3dca2b3..1c9b080 100644 --- a/fs/dlm/debug_fs.c +++ b/fs/dlm/debug_fs.c @@ -609,13 +609,6 @@ static const struct file_operations format3_fops = { /* * dump lkb's on the ls_waiters list */ - -static int waiters_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - static ssize_t waiters_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { @@ -644,7 +637,7 @@ static ssize_t waiters_read(struct file *file, char __user *userbuf, static const struct file_operations waiters_fops = { .owner = THIS_MODULE, - .open = waiters_open, + .open = simple_open, .read = waiters_read, .llseek = default_llseek, }; diff --git a/fs/pstore/inode.c b/fs/pstore/inode.c index f37c32b..8ae5a03 100644 --- a/fs/pstore/inode.c +++ b/fs/pstore/inode.c @@ -52,12 +52,6 @@ struct pstore_private { char data[]; }; -static int pstore_file_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - static ssize_t pstore_file_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { @@ -67,7 +61,7 @@ static ssize_t pstore_file_read(struct file *file, char __user *userbuf, } static const struct file_operations pstore_file_operations = { - .open = pstore_file_open, + .open = simple_open, .read = pstore_file_read, .llseek = default_llseek, }; diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c index cdea7b5..c0bd030 100644 --- a/kernel/trace/blktrace.c +++ b/kernel/trace/blktrace.c @@ -311,13 +311,6 @@ int blk_trace_remove(struct request_queue *q) } EXPORT_SYMBOL_GPL(blk_trace_remove); -static int blk_dropped_open(struct inode *inode, struct file *filp) -{ - filp->private_data = inode->i_private; - - return 0; -} - static ssize_t blk_dropped_read(struct file *filp, char __user *buffer, size_t count, loff_t *ppos) { @@ -331,18 +324,11 @@ static ssize_t blk_dropped_read(struct file *filp, char __user *buffer, static const struct file_operations blk_dropped_fops = { .owner = THIS_MODULE, - .open = blk_dropped_open, + .open = simple_open, .read = blk_dropped_read, .llseek = default_llseek, }; -static int blk_msg_open(struct inode *inode, struct file *filp) -{ - filp->private_data = inode->i_private; - - return 0; -} - static ssize_t blk_msg_write(struct file *filp, const char __user *buffer, size_t count, loff_t *ppos) { @@ -371,7 +357,7 @@ static ssize_t blk_msg_write(struct file *filp, const char __user *buffer, static const struct file_operations blk_msg_fops = { .owner = THIS_MODULE, - .open = blk_msg_open, + .open = simple_open, .write = blk_msg_write, .llseek = noop_llseek, }; diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c index cc5b7a6..778e591 100644 --- a/net/mac80211/debugfs.c +++ b/net/mac80211/debugfs.c @@ -15,12 +15,6 @@ #include "rate.h" #include "debugfs.h" -int mac80211_open_file_generic(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - #define DEBUGFS_FORMAT_BUFFER_SIZE 100 int mac80211_format_buffer(char __user *userbuf, size_t count, @@ -50,7 +44,7 @@ static ssize_t name## _read(struct file *file, char __user *userbuf, \ #define DEBUGFS_READONLY_FILE_OPS(name) \ static const struct file_operations name## _ops = { \ .read = name## _read, \ - .open = mac80211_open_file_generic, \ + .open = simple_open, \ .llseek = generic_file_llseek, \ }; @@ -93,7 +87,7 @@ static ssize_t reset_write(struct file *file, const char __user *user_buf, static const struct file_operations reset_ops = { .write = reset_write, - .open = mac80211_open_file_generic, + .open = simple_open, .llseek = noop_llseek, }; @@ -254,7 +248,7 @@ static ssize_t stats_ ##name## _read(struct file *file, \ \ static const struct file_operations stats_ ##name## _ops = { \ .read = stats_ ##name## _read, \ - .open = mac80211_open_file_generic, \ + .open = simple_open, \ .llseek = generic_file_llseek, \ }; diff --git a/net/mac80211/debugfs.h b/net/mac80211/debugfs.h index 7c87529..9be4e6d 100644 --- a/net/mac80211/debugfs.h +++ b/net/mac80211/debugfs.h @@ -3,7 +3,6 @@ #ifdef CONFIG_MAC80211_DEBUGFS extern void debugfs_hw_add(struct ieee80211_local *local); -extern int mac80211_open_file_generic(struct inode *inode, struct file *file); extern int mac80211_format_buffer(char __user *userbuf, size_t count, loff_t *ppos, char *fmt, ...); #else diff --git a/net/mac80211/debugfs_key.c b/net/mac80211/debugfs_key.c index 59edcd9..7932767 100644 --- a/net/mac80211/debugfs_key.c +++ b/net/mac80211/debugfs_key.c @@ -30,7 +30,7 @@ static ssize_t key_##name##_read(struct file *file, \ #define KEY_OPS(name) \ static const struct file_operations key_ ##name## _ops = { \ .read = key_##name##_read, \ - .open = mac80211_open_file_generic, \ + .open = simple_open, \ .llseek = generic_file_llseek, \ } @@ -45,7 +45,7 @@ static const struct file_operations key_ ##name## _ops = { \ #define KEY_CONF_OPS(name) \ static const struct file_operations key_ ##name## _ops = { \ .read = key_conf_##name##_read, \ - .open = mac80211_open_file_generic, \ + .open = simple_open, \ .llseek = generic_file_llseek, \ } diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c index a32eeda..30f99c3 100644 --- a/net/mac80211/debugfs_netdev.c +++ b/net/mac80211/debugfs_netdev.c @@ -135,7 +135,7 @@ static ssize_t ieee80211_if_read_##name(struct file *file, \ static const struct file_operations name##_ops = { \ .read = ieee80211_if_read_##name, \ .write = (_write), \ - .open = mac80211_open_file_generic, \ + .open = simple_open, \ .llseek = generic_file_llseek, \ } diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c index 6d45804..832b2da 100644 --- a/net/mac80211/debugfs_sta.c +++ b/net/mac80211/debugfs_sta.c @@ -33,7 +33,7 @@ static ssize_t sta_ ##name## _read(struct file *file, \ #define STA_OPS(name) \ static const struct file_operations sta_ ##name## _ops = { \ .read = sta_##name##_read, \ - .open = mac80211_open_file_generic, \ + .open = simple_open, \ .llseek = generic_file_llseek, \ } @@ -41,7 +41,7 @@ static const struct file_operations sta_ ##name## _ops = { \ static const struct file_operations sta_ ##name## _ops = { \ .read = sta_##name##_read, \ .write = sta_##name##_write, \ - .open = mac80211_open_file_generic, \ + .open = simple_open, \ .llseek = generic_file_llseek, \ } diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c index b4f7600..3313c11 100644 --- a/net/mac80211/rate.c +++ b/net/mac80211/rate.c @@ -145,7 +145,7 @@ static ssize_t rcname_read(struct file *file, char __user *userbuf, static const struct file_operations rcname_ops = { .read = rcname_read, - .open = mac80211_open_file_generic, + .open = simple_open, .llseek = default_llseek, }; #endif diff --git a/net/wireless/debugfs.c b/net/wireless/debugfs.c index 39765bc..920cabe 100644 --- a/net/wireless/debugfs.c +++ b/net/wireless/debugfs.c @@ -13,12 +13,6 @@ #include "core.h" #include "debugfs.h" -static int cfg80211_open_file_generic(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - #define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \ static ssize_t name## _read(struct file *file, char __user *userbuf, \ size_t count, loff_t *ppos) \ @@ -33,7 +27,7 @@ static ssize_t name## _read(struct file *file, char __user *userbuf, \ \ static const struct file_operations name## _ops = { \ .read = name## _read, \ - .open = cfg80211_open_file_generic, \ + .open = simple_open, \ .llseek = generic_file_llseek, \ }; @@ -102,7 +96,7 @@ static ssize_t ht40allow_map_read(struct file *file, static const struct file_operations ht40allow_map_ops = { .read = ht40allow_map_read, - .open = cfg80211_open_file_generic, + .open = simple_open, .llseek = default_llseek, }; diff --git a/sound/soc/imx/imx-audmux.c b/sound/soc/imx/imx-audmux.c index 601df80..1765a19 100644 --- a/sound/soc/imx/imx-audmux.c +++ b/sound/soc/imx/imx-audmux.c @@ -40,12 +40,6 @@ static void __iomem *audmux_base; #ifdef CONFIG_DEBUG_FS static struct dentry *audmux_debugfs_root; -static int audmux_open_file(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - /* There is an annoying discontinuity in the SSI numbering with regard * to the Linux number of the devices */ static const char *audmux_port_string(int port) @@ -142,7 +136,7 @@ static ssize_t audmux_read_file(struct file *file, char __user *user_buf, } static const struct file_operations audmux_debugfs_fops = { - .open = audmux_open_file, + .open = simple_open, .read = audmux_read_file, .llseek = default_llseek, }; diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index a4deebc..e19c24a 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -201,12 +201,6 @@ static ssize_t pmdown_time_set(struct device *dev, static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); #ifdef CONFIG_DEBUG_FS -static int codec_reg_open_file(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { @@ -264,7 +258,7 @@ static ssize_t codec_reg_write_file(struct file *file, } static const struct file_operations codec_reg_fops = { - .open = codec_reg_open_file, + .open = simple_open, .read = codec_reg_read_file, .write = codec_reg_write_file, .llseek = default_llseek, diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 6241490..5cbd2d76 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -1544,12 +1544,6 @@ static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) } #ifdef CONFIG_DEBUG_FS -static int dapm_widget_power_open_file(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - static ssize_t dapm_widget_power_read_file(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) @@ -1613,17 +1607,11 @@ static ssize_t dapm_widget_power_read_file(struct file *file, } static const struct file_operations dapm_widget_power_fops = { - .open = dapm_widget_power_open_file, + .open = simple_open, .read = dapm_widget_power_read_file, .llseek = default_llseek, }; -static int dapm_bias_open_file(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { @@ -1654,7 +1642,7 @@ static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, } static const struct file_operations dapm_bias_fops = { - .open = dapm_bias_open_file, + .open = simple_open, .read = dapm_bias_read_file, .llseek = default_llseek, }; -- cgit v0.10.2 From 2561b069da3e8fe2ab939f82abe43754d39b6ea0 Mon Sep 17 00:00:00 2001 From: Matt Fleming Date: Thu, 5 Apr 2012 14:25:12 -0700 Subject: alpha: use set_current_blocked() and block_sigmask() As described in e6fa16ab9c1e ("signal: sigprocmask() should do retarget_shared_pending()") the modification of current->blocked is incorrect as we need to check for shared signals we're about to block. Also, use the new helper function introduced in commit 5e6292c0f28f ("signal: add block_sigmask() for adding sigmask to current->blocked") which centralises the code for updating current->blocked after successfully delivering a signal and reduces the amount of duplicate code across architectures. In the past some architectures got this code wrong, so using this helper function should stop that from happening again. Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Cc: Al Viro Acked-by: Oleg Nesterov Signed-off-by: Matt Fleming Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c index 6f7feb5..35f2ef4 100644 --- a/arch/alpha/kernel/signal.c +++ b/arch/alpha/kernel/signal.c @@ -120,12 +120,13 @@ SYSCALL_DEFINE5(rt_sigaction, int, sig, const struct sigaction __user *, act, */ SYSCALL_DEFINE1(sigsuspend, old_sigset_t, mask) { - mask &= _BLOCKABLE; - spin_lock_irq(¤t->sighand->siglock); + sigset_t blocked; + current->saved_sigmask = current->blocked; - siginitset(¤t->blocked, mask); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + + mask &= _BLOCKABLE; + siginitset(&blocked, mask); + set_current_blocked(&blocked); current->state = TASK_INTERRUPTIBLE; schedule(); @@ -238,10 +239,7 @@ do_sigreturn(struct sigcontext __user *sc, struct pt_regs *regs, goto give_sigsegv; sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); if (restore_sigcontext(sc, regs, sw)) goto give_sigsegv; @@ -276,10 +274,7 @@ do_rt_sigreturn(struct rt_sigframe __user *frame, struct pt_regs *regs, goto give_sigsegv; sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); if (restore_sigcontext(&frame->uc.uc_mcontext, regs, sw)) goto give_sigsegv; @@ -501,14 +496,8 @@ handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info, else ret = setup_frame(sig, ka, oldset, regs, sw); - if (ret == 0) { - spin_lock_irq(¤t->sighand->siglock); - sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); - if (!(ka->sa.sa_flags & SA_NODEFER)) - sigaddset(¤t->blocked,sig); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - } + if (ret == 0) + block_sigmask(ka, sig); return ret; } -- cgit v0.10.2 From 6fc26488e44a3248e24997cda2fa6a4d4b062c5b Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Thu, 5 Apr 2012 14:25:13 -0700 Subject: MAINTAINERS: fix REMOTEPROC F: typo remoteproc.txt should have been .h Signed-off-by: Joe Perches Cc: Ohad Ben-Cohen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/MAINTAINERS b/MAINTAINERS index 3d11fa5..a8a0c60 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5639,7 +5639,7 @@ M: Ohad Ben-Cohen S: Maintained F: drivers/remoteproc/ F: Documentation/remoteproc.txt -F: include/linux/remoteproc.txt +F: include/linux/remoteproc.h RFKILL M: Johannes Berg -- cgit v0.10.2 From 389325b449caf3c73544f25bd4d6742b7f97e5dd Mon Sep 17 00:00:00 2001 From: Christopher Li Date: Thu, 5 Apr 2012 14:25:14 -0700 Subject: MAINTAINERS: add entry for sparse checker Signed-off-by: Christopher Li Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/MAINTAINERS b/MAINTAINERS index a8a0c60..0104116 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6283,6 +6283,15 @@ F: drivers/tty/serial/sunsu.c F: drivers/tty/serial/sunzilog.c F: drivers/tty/serial/sunzilog.h +SPARSE CHECKER +M: "Christopher Li" +L: linux-sparse@vger.kernel.org +W: https://sparse.wiki.kernel.org/ +T: git git://git.kernel.org/pub/scm/devel/sparse/sparse.git +T: git git://git.kernel.org/pub/scm/devel/sparse/chrisl/sparse.git +S: Maintained +F: include/linux/compiler.h + SPEAR PLATFORM SUPPORT M: Viresh Kumar L: spear-devel@list.st.com -- cgit v0.10.2 From 6e61ee3b7a1e05a8c5b76095a1ea6c3711c922cb Mon Sep 17 00:00:00 2001 From: Matt Fleming Date: Thu, 5 Apr 2012 14:25:14 -0700 Subject: C6X: use set_current_blocked() and block_sigmask() As described in e6fa16ab9c1e ("signal: sigprocmask() should do retarget_shared_pending()") the modification of current->blocked is incorrect as we need to check whether the signal we're about to block is pending in the shared queue. Also, use the new helper function introduced in commit 5e6292c0f28f ("signal: add block_sigmask() for adding sigmask to current->blocked") which centralises the code for updating current->blocked after successfully delivering a signal and reduces the amount of duplicate code across architectures. In the past some architectures got this code wrong, so using this helper function should stop that from happening again. Acked-by: Mark Salter Cc: Aurelien Jacquiot Acked-by: Oleg Nesterov Signed-off-by: Matt Fleming Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/arch/c6x/kernel/signal.c b/arch/c6x/kernel/signal.c index 304f675..3b5a050 100644 --- a/arch/c6x/kernel/signal.c +++ b/arch/c6x/kernel/signal.c @@ -85,10 +85,7 @@ asmlinkage int do_rt_sigreturn(struct pt_regs *regs) goto badframe; sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); if (restore_sigcontext(regs, &frame->uc.uc_mcontext)) goto badframe; @@ -279,15 +276,8 @@ static int handle_signal(int sig, /* Set up the stack frame */ ret = setup_rt_frame(sig, ka, info, oldset, regs); - if (ret == 0) { - spin_lock_irq(¤t->sighand->siglock); - sigorsets(¤t->blocked, ¤t->blocked, - &ka->sa.sa_mask); - if (!(ka->sa.sa_flags & SA_NODEFER)) - sigaddset(¤t->blocked, sig); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - } + if (ret == 0) + block_sigmask(ka, sig); return ret; } -- cgit v0.10.2 From 6ede3d832aaa038e7465e677569f7acc96b4dcdf Mon Sep 17 00:00:00 2001 From: Ashish Jangam Date: Thu, 5 Apr 2012 14:25:15 -0700 Subject: backlight: add driver for DA9052/53 PMIC v1 DA9052/53 PMIC has capability to supply power for upto 3 banks of 6 white serial LEDS. It can also control intensity of independent banks and to drive these banks boost converter will provide up to 24V and forward current of max 50mA. This patch allows to control intensity of the individual WLEDs bank through DA9052/53 PMIC. This patch is functionally tested on Samsung SMDKV6410. Signed-off-by: David Dajun Chen Signed-off-by: Ashish Jangam Cc: Richard Purdie Cc: Samuel Ortiz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index 7ed9991..af16884 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -245,6 +245,12 @@ config BACKLIGHT_DA903X If you have a LCD backlight connected to the WLED output of DA9030 or DA9034 WLED output, say Y here to enable this driver. +config BACKLIGHT_DA9052 + tristate "Dialog DA9052/DA9053 WLED" + depends on PMIC_DA9052 + help + Enable the Backlight Driver for DA9052-BC and DA9053-AA/Bx PMICs. + config BACKLIGHT_MAX8925 tristate "Backlight driver for MAX8925" depends on MFD_MAX8925 diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile index 8071eb6..36855ae 100644 --- a/drivers/video/backlight/Makefile +++ b/drivers/video/backlight/Makefile @@ -29,6 +29,7 @@ obj-$(CONFIG_BACKLIGHT_PROGEAR) += progear_bl.o obj-$(CONFIG_BACKLIGHT_CARILLO_RANCH) += cr_bllcd.o obj-$(CONFIG_BACKLIGHT_PWM) += pwm_bl.o obj-$(CONFIG_BACKLIGHT_DA903X) += da903x_bl.o +obj-$(CONFIG_BACKLIGHT_DA9052) += da9052_bl.o obj-$(CONFIG_BACKLIGHT_MAX8925) += max8925_bl.o obj-$(CONFIG_BACKLIGHT_APPLE) += apple_bl.o obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o diff --git a/drivers/video/backlight/da9052_bl.c b/drivers/video/backlight/da9052_bl.c new file mode 100644 index 0000000..b628d68 --- /dev/null +++ b/drivers/video/backlight/da9052_bl.c @@ -0,0 +1,187 @@ +/* + * Backlight Driver for Dialog DA9052 PMICs + * + * Copyright(c) 2012 Dialog Semiconductor Ltd. + * + * Author: David Dajun Chen + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include +#include +#include +#include +#include + +#include +#include + +#define DA9052_MAX_BRIGHTNESS 0xFF + +enum { + DA9052_WLEDS_OFF, + DA9052_WLEDS_ON, +}; + +enum { + DA9052_TYPE_WLED1, + DA9052_TYPE_WLED2, + DA9052_TYPE_WLED3, +}; + +static unsigned char wled_bank[] = { + DA9052_LED1_CONF_REG, + DA9052_LED2_CONF_REG, + DA9052_LED3_CONF_REG, +}; + +struct da9052_bl { + struct da9052 *da9052; + uint brightness; + uint state; + uint led_reg; +}; + +static int da9052_adjust_wled_brightness(struct da9052_bl *wleds) +{ + unsigned char boost_en; + unsigned char i_sink; + int ret; + + boost_en = 0x3F; + i_sink = 0xFF; + if (wleds->state == DA9052_WLEDS_OFF) { + boost_en = 0x00; + i_sink = 0x00; + } + + ret = da9052_reg_write(wleds->da9052, DA9052_BOOST_REG, boost_en); + if (ret < 0) + return ret; + + ret = da9052_reg_write(wleds->da9052, DA9052_LED_CONT_REG, i_sink); + if (ret < 0) + return ret; + + ret = da9052_reg_write(wleds->da9052, wled_bank[wleds->led_reg], 0x0); + if (ret < 0) + return ret; + + msleep(10); + + if (wleds->brightness) { + ret = da9052_reg_write(wleds->da9052, wled_bank[wleds->led_reg], + wleds->brightness); + if (ret < 0) + return ret; + } + + return 0; +} + +static int da9052_backlight_update_status(struct backlight_device *bl) +{ + int brightness = bl->props.brightness; + struct da9052_bl *wleds = bl_get_data(bl); + + wleds->brightness = brightness; + wleds->state = DA9052_WLEDS_ON; + + return da9052_adjust_wled_brightness(wleds); +} + +static int da9052_backlight_get_brightness(struct backlight_device *bl) +{ + struct da9052_bl *wleds = bl_get_data(bl); + + return wleds->brightness; +} + +static const struct backlight_ops da9052_backlight_ops = { + .update_status = da9052_backlight_update_status, + .get_brightness = da9052_backlight_get_brightness, +}; + +static int da9052_backlight_probe(struct platform_device *pdev) +{ + struct backlight_device *bl; + struct backlight_properties props; + struct da9052_bl *wleds; + + wleds = devm_kzalloc(&pdev->dev, sizeof(struct da9052_bl), GFP_KERNEL); + if (!wleds) + return -ENOMEM; + + wleds->da9052 = dev_get_drvdata(pdev->dev.parent); + wleds->brightness = 0; + wleds->led_reg = platform_get_device_id(pdev)->driver_data; + wleds->state = DA9052_WLEDS_OFF; + + props.type = BACKLIGHT_RAW; + props.max_brightness = DA9052_MAX_BRIGHTNESS; + + bl = backlight_device_register(pdev->name, wleds->da9052->dev, wleds, + &da9052_backlight_ops, &props); + if (IS_ERR(bl)) { + dev_err(&pdev->dev, "Failed to register backlight\n"); + devm_kfree(&pdev->dev, wleds); + return PTR_ERR(bl); + } + + bl->props.max_brightness = DA9052_MAX_BRIGHTNESS; + bl->props.brightness = 0; + platform_set_drvdata(pdev, bl); + + return da9052_adjust_wled_brightness(wleds); +} + +static int da9052_backlight_remove(struct platform_device *pdev) +{ + struct backlight_device *bl = platform_get_drvdata(pdev); + struct da9052_bl *wleds = bl_get_data(bl); + + wleds->brightness = 0; + wleds->state = DA9052_WLEDS_OFF; + da9052_adjust_wled_brightness(wleds); + backlight_device_unregister(bl); + devm_kfree(&pdev->dev, wleds); + + return 0; +} + +static struct platform_device_id da9052_wled_ids[] = { + { + .name = "da9052-wled1", + .driver_data = DA9052_TYPE_WLED1, + }, + { + .name = "da9052-wled2", + .driver_data = DA9052_TYPE_WLED2, + }, + { + .name = "da9052-wled3", + .driver_data = DA9052_TYPE_WLED3, + }, +}; + +static struct platform_driver da9052_wled_driver = { + .probe = da9052_backlight_probe, + .remove = da9052_backlight_remove, + .id_table = da9052_wled_ids, + .driver = { + .name = "da9052-wled", + .owner = THIS_MODULE, + }, +}; + +module_platform_driver(da9052_wled_driver); + +MODULE_AUTHOR("David Dajun Chen "); +MODULE_DESCRIPTION("Backlight driver for DA9052 PMIC"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:da9052-backlight"); -- cgit v0.10.2 From dac23b0d0513916498d40412818bd2c581b365f7 Mon Sep 17 00:00:00 2001 From: Michal Hocko Date: Thu, 5 Apr 2012 14:25:16 -0700 Subject: memcg swap: use mem_cgroup_uncharge_swap fix Although mem_cgroup_uncharge_swap has an empty placeholder for !CONFIG_CGROUP_MEM_RES_CTLR_SWAP the definition is placed in the CONFIG_SWAP ifdef block so we are missing the same definition for !CONFIG_SWAP which implies !CONFIG_CGROUP_MEM_RES_CTLR_SWAP. This has not been an issue before, because mem_cgroup_uncharge_swap was not called from !CONFIG_SWAP context. But Hugh Dickins has a cleanup patch to call __mem_cgroup_commit_charge_swapin which is defined also for !CONFIG_SWAP. Let's move both the empty definition and declaration outside of the CONFIG_SWAP block to avoid the following compilation error: mm/memcontrol.c: In function '__mem_cgroup_commit_charge_swapin': mm/memcontrol.c:2837: error: implicit declaration of function 'mem_cgroup_uncharge_swap' if CONFIG_SWAP is disabled. Reported-by: David Rientjes Signed-off-by: Michal Hocko Cc: Hugh Dickins Cc: KAMEZAWA Hiroyuki Cc: Daisuke Nishimura Cc: Johannes Weiner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/include/linux/swap.h b/include/linux/swap.h index 8dc0ea7..b1fd5c7 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -305,6 +305,13 @@ static inline int mem_cgroup_swappiness(struct mem_cgroup *mem) return vm_swappiness; } #endif +#ifdef CONFIG_CGROUP_MEM_RES_CTLR_SWAP +extern void mem_cgroup_uncharge_swap(swp_entry_t ent); +#else +static inline void mem_cgroup_uncharge_swap(swp_entry_t ent) +{ +} +#endif #ifdef CONFIG_SWAP /* linux/mm/page_io.c */ extern int swap_readpage(struct page *); @@ -375,13 +382,6 @@ mem_cgroup_uncharge_swapcache(struct page *page, swp_entry_t ent, bool swapout) { } #endif -#ifdef CONFIG_CGROUP_MEM_RES_CTLR_SWAP -extern void mem_cgroup_uncharge_swap(swp_entry_t ent); -#else -static inline void mem_cgroup_uncharge_swap(swp_entry_t ent) -{ -} -#endif #else /* CONFIG_SWAP */ -- cgit v0.10.2 From a2bd1140a264b561e38d99e656cd843c2d840e86 Mon Sep 17 00:00:00 2001 From: Dave Jiang Date: Wed, 4 Apr 2012 16:10:46 -0700 Subject: netdma: adding alignment check for NETDMA ops This is the fallout from adding memcpy alignment workaround for certain IOATDMA hardware. NetDMA will only use DMA engine that can handle byte align ops. Acked-by: David S. Miller Signed-off-by: Dave Jiang Signed-off-by: Dan Williams diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index a6c6051..0f1ca74 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -332,6 +332,20 @@ struct dma_chan *dma_find_channel(enum dma_transaction_type tx_type) } EXPORT_SYMBOL(dma_find_channel); +/* + * net_dma_find_channel - find a channel for net_dma + * net_dma has alignment requirements + */ +struct dma_chan *net_dma_find_channel(void) +{ + struct dma_chan *chan = dma_find_channel(DMA_MEMCPY); + if (chan && !is_dma_copy_aligned(chan->device, 1, 1, 1)) + return NULL; + + return chan; +} +EXPORT_SYMBOL(net_dma_find_channel); + /** * dma_issue_pending_all - flush all pending operations across all channels */ diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 679b349..a5bb3ad 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -948,6 +948,7 @@ int dma_async_device_register(struct dma_device *device); void dma_async_device_unregister(struct dma_device *device); void dma_run_dependencies(struct dma_async_tx_descriptor *tx); struct dma_chan *dma_find_channel(enum dma_transaction_type tx_type); +struct dma_chan *net_dma_find_channel(void); #define dma_request_channel(mask, x, y) __dma_request_channel(&(mask), x, y) /* --- Helper iov-locking functions --- */ diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 22ef5f9..8712c5d 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1450,7 +1450,7 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, if ((available < target) && (len > sysctl_tcp_dma_copybreak) && !(flags & MSG_PEEK) && !sysctl_tcp_low_latency && - dma_find_channel(DMA_MEMCPY)) { + net_dma_find_channel()) { preempt_enable_no_resched(); tp->ucopy.pinned_list = dma_pin_iovec_pages(msg->msg_iov, len); @@ -1665,7 +1665,7 @@ do_prequeue: if (!(flags & MSG_TRUNC)) { #ifdef CONFIG_NET_DMA if (!tp->ucopy.dma_chan && tp->ucopy.pinned_list) - tp->ucopy.dma_chan = dma_find_channel(DMA_MEMCPY); + tp->ucopy.dma_chan = net_dma_find_channel(); if (tp->ucopy.dma_chan) { tp->ucopy.dma_cookie = dma_skb_copy_datagram_iovec( diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index b5e315f..27c676d 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -5190,7 +5190,7 @@ static int tcp_dma_try_early_copy(struct sock *sk, struct sk_buff *skb, return 0; if (!tp->ucopy.dma_chan && tp->ucopy.pinned_list) - tp->ucopy.dma_chan = dma_find_channel(DMA_MEMCPY); + tp->ucopy.dma_chan = net_dma_find_channel(); if (tp->ucopy.dma_chan && skb_csum_unnecessary(skb)) { diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index fd54c5f..3810b6f 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -1727,7 +1727,7 @@ process: #ifdef CONFIG_NET_DMA struct tcp_sock *tp = tcp_sk(sk); if (!tp->ucopy.dma_chan && tp->ucopy.pinned_list) - tp->ucopy.dma_chan = dma_find_channel(DMA_MEMCPY); + tp->ucopy.dma_chan = net_dma_find_channel(); if (tp->ucopy.dma_chan) ret = tcp_v4_do_rcv(sk, skb); else diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 3edd05a..fcb3e4f 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -1755,7 +1755,7 @@ process: #ifdef CONFIG_NET_DMA struct tcp_sock *tp = tcp_sk(sk); if (!tp->ucopy.dma_chan && tp->ucopy.pinned_list) - tp->ucopy.dma_chan = dma_find_channel(DMA_MEMCPY); + tp->ucopy.dma_chan = net_dma_find_channel(); if (tp->ucopy.dma_chan) ret = tcp_v6_do_rcv(sk, skb); else -- cgit v0.10.2 From 31d68e7b66f168e623902e194af1e52b8cf75d71 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 27 Mar 2012 12:55:57 -0300 Subject: perf annotate: Validate addr in symbol__inc_addr_samples This routine was checking only if the provided address was after sym->end, not if it was before sym->start. Fix that by checking for both and return in both cases -ERANGE, so that tools can communicate this to the user properly, or if they chose so, to abort. This problem was reported previously but the fixes involved either doing what was being done for the > end case, i.e. silently drop the sample, returning 0, or aborting at this function, which is in a lib (or better, is slated to be at some point) and shouldn't abort. The 'report' tool already checks this value and uses pr_debug to warn the user. This patch makes the 'top' tool check it too and warn once per map where such range problem takes place. Reported-by: David Miller Reported-by: Sorin Dumitru Reported-by: Stephane Eranian Cc: David Ahern Cc: Frederic Weisbecker Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/n/tip-lw8gs7p9i9nhldilo82tzpne@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index fab0a1c..8ef59f8 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -42,6 +42,7 @@ #include "util/debug.h" #include +#include #include #include @@ -59,6 +60,7 @@ #include #include #include +#include #include #include @@ -162,12 +164,40 @@ static void __zero_source_counters(struct hist_entry *he) symbol__annotate_zero_histograms(sym); } +static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip) +{ + struct utsname uts; + int err = uname(&uts); + + ui__warning("Out of bounds address found:\n\n" + "Addr: %" PRIx64 "\n" + "DSO: %s %c\n" + "Map: %" PRIx64 "-%" PRIx64 "\n" + "Symbol: %" PRIx64 "-%" PRIx64 " %c %s\n" + "Arch: %s\n" + "Kernel: %s\n" + "Tools: %s\n\n" + "Not all samples will be on the annotation output.\n\n" + "Please report to linux-kernel@vger.kernel.org\n", + ip, map->dso->long_name, dso__symtab_origin(map->dso), + map->start, map->end, sym->start, sym->end, + sym->binding == STB_GLOBAL ? 'g' : + sym->binding == STB_LOCAL ? 'l' : 'w', sym->name, + err ? "[unknown]" : uts.machine, + err ? "[unknown]" : uts.release, perf_version_string); + if (use_browser <= 0) + sleep(5); + + map->erange_warned = true; +} + static void perf_top__record_precise_ip(struct perf_top *top, struct hist_entry *he, int counter, u64 ip) { struct annotation *notes; struct symbol *sym; + int err; if (he == NULL || he->ms.sym == NULL || ((top->sym_filter_entry == NULL || @@ -189,9 +219,12 @@ static void perf_top__record_precise_ip(struct perf_top *top, } ip = he->ms.map->map_ip(he->ms.map, ip); - symbol__inc_addr_samples(sym, he->ms.map, counter, ip); + err = symbol__inc_addr_samples(sym, he->ms.map, counter, ip); pthread_mutex_unlock(¬es->lock); + + if (err == -ERANGE && !he->ms.map->erange_warned) + ui__warn_map_erange(he->ms.map, sym, ip); } static void perf_top__show_details(struct perf_top *top) diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index 70f5a4d..08c6d13 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -64,8 +64,8 @@ int symbol__inc_addr_samples(struct symbol *sym, struct map *map, pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, map->unmap_ip(map, addr)); - if (addr > sym->end) - return 0; + if (addr < sym->start || addr > sym->end) + return -ERANGE; offset = addr - sym->start; h = annotation__histogram(notes, evidx); diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index dea6d1c..35ae568 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -38,6 +38,7 @@ void map__init(struct map *self, enum map_type type, RB_CLEAR_NODE(&self->rb_node); self->groups = NULL; self->referenced = false; + self->erange_warned = false; } struct map *map__new(struct list_head *dsos__list, u64 start, u64 len, diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h index b100c20..81371ba 100644 --- a/tools/perf/util/map.h +++ b/tools/perf/util/map.h @@ -33,6 +33,7 @@ struct map { u64 end; u8 /* enum map_type */ type; bool referenced; + bool erange_warned; u32 priv; u64 pgoff; -- cgit v0.10.2 From 35f9c09fe9c72eb8ca2b8e89a593e1c151f28fc2 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 5 Apr 2012 03:05:35 +0000 Subject: tcp: tcp_sendpages() should call tcp_push() once MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit 2f533844242 (tcp: allow splice() to build full TSO packets) added a regression for splice() calls using SPLICE_F_MORE. We need to call tcp_flush() at the end of the last page processed in tcp_sendpages(), or else transmits can be deferred and future sends stall. Add a new internal flag, MSG_SENDPAGE_NOTLAST, acting like MSG_MORE, but with different semantic. For all sendpage() providers, its a transparent change. Only sock_sendpage() and tcp_sendpages() can differentiate the two different flags provided by pipe_to_sendpage() Reported-by: Tom Herbert Cc: Nandita Dukkipati Cc: Neal Cardwell Cc: Tom Herbert Cc: Yuchung Cheng Cc: H.K. Jerry Chu Cc: Maciej Żenczykowski Cc: Mahesh Bandewar Cc: Ilpo Järvinen Signed-off-by: Eric Dumazet com> Signed-off-by: David S. Miller diff --git a/fs/splice.c b/fs/splice.c index 5f883de..f847684 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -30,6 +30,7 @@ #include #include #include +#include /* * Attempt to steal a page from a pipe buffer. This should perhaps go into @@ -690,7 +691,9 @@ static int pipe_to_sendpage(struct pipe_inode_info *pipe, if (!likely(file->f_op && file->f_op->sendpage)) return -EINVAL; - more = (sd->flags & SPLICE_F_MORE) || sd->len < sd->total_len; + more = (sd->flags & SPLICE_F_MORE) ? MSG_MORE : 0; + if (sd->len < sd->total_len) + more |= MSG_SENDPAGE_NOTLAST; return file->f_op->sendpage(file, buf->page, buf->offset, sd->len, &pos, more); } diff --git a/include/linux/socket.h b/include/linux/socket.h index da2d3e2..b84bbd4 100644 --- a/include/linux/socket.h +++ b/include/linux/socket.h @@ -265,7 +265,7 @@ struct ucred { #define MSG_NOSIGNAL 0x4000 /* Do not generate SIGPIPE */ #define MSG_MORE 0x8000 /* Sender will send more */ #define MSG_WAITFORONE 0x10000 /* recvmmsg(): block until 1+ packets avail */ - +#define MSG_SENDPAGE_NOTLAST 0x20000 /* sendpage() internal : not the last page */ #define MSG_EOF MSG_FIN #define MSG_CMSG_CLOEXEC 0x40000000 /* Set close_on_exit for file diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 2ff6f45..5d54ed3 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -860,7 +860,7 @@ wait_for_memory: } out: - if (copied && !(flags & MSG_MORE)) + if (copied && !(flags & MSG_SENDPAGE_NOTLAST)) tcp_push(sk, flags, mss_now, tp->nonagle); return copied; diff --git a/net/socket.c b/net/socket.c index 484cc69..851edcd 100644 --- a/net/socket.c +++ b/net/socket.c @@ -811,9 +811,9 @@ static ssize_t sock_sendpage(struct file *file, struct page *page, sock = file->private_data; - flags = !(file->f_flags & O_NONBLOCK) ? 0 : MSG_DONTWAIT; - if (more) - flags |= MSG_MORE; + flags = (file->f_flags & O_NONBLOCK) ? MSG_DONTWAIT : 0; + /* more is a combination of MSG_MORE and MSG_SENDPAGE_NOTLAST */ + flags |= more; return kernel_sendpage(sock, page, offset, size, flags); } -- cgit v0.10.2 From bcf1b70ac6eb0ed8286c66e6bf37cb747cbaa04c Mon Sep 17 00:00:00 2001 From: Sasha Levin Date: Thu, 5 Apr 2012 12:07:45 +0000 Subject: phonet: Check input from user before allocating MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A phonet packet is limited to USHRT_MAX bytes, this is never checked during tx which means that the user can specify any size he wishes, and the kernel will attempt to allocate that size. In the good case, it'll lead to the following warning, but it may also cause the kernel to kick in the OOM and kill a random task on the server. [ 8921.744094] WARNING: at mm/page_alloc.c:2255 __alloc_pages_slowpath+0x65/0x730() [ 8921.749770] Pid: 5081, comm: trinity Tainted: G W 3.4.0-rc1-next-20120402-sasha #46 [ 8921.756672] Call Trace: [ 8921.758185] [] warn_slowpath_common+0x87/0xb0 [ 8921.762868] [] warn_slowpath_null+0x15/0x20 [ 8921.765399] [] __alloc_pages_slowpath+0x65/0x730 [ 8921.769226] [] ? zone_watermark_ok+0x1a/0x20 [ 8921.771686] [] ? get_page_from_freelist+0x625/0x660 [ 8921.773919] [] __alloc_pages_nodemask+0x1f8/0x240 [ 8921.776248] [] kmalloc_large_node+0x70/0xc0 [ 8921.778294] [] __kmalloc_node_track_caller+0x34/0x1c0 [ 8921.780847] [] ? sock_alloc_send_pskb+0xbc/0x260 [ 8921.783179] [] __alloc_skb+0x75/0x170 [ 8921.784971] [] sock_alloc_send_pskb+0xbc/0x260 [ 8921.787111] [] ? release_sock+0x7e/0x90 [ 8921.788973] [] sock_alloc_send_skb+0x10/0x20 [ 8921.791052] [] pep_sendmsg+0x60/0x380 [ 8921.792931] [] ? pn_socket_bind+0x156/0x180 [ 8921.794917] [] ? pn_socket_autobind+0x3f/0x90 [ 8921.797053] [] pn_socket_sendmsg+0x4f/0x70 [ 8921.798992] [] sock_aio_write+0x187/0x1b0 [ 8921.801395] [] ? sub_preempt_count+0xae/0xf0 [ 8921.803501] [] ? __lock_acquire+0x42c/0x4b0 [ 8921.805505] [] ? __sock_recv_ts_and_drops+0x140/0x140 [ 8921.807860] [] do_sync_readv_writev+0xbc/0x110 [ 8921.809986] [] ? might_fault+0x97/0xa0 [ 8921.811998] [] ? security_file_permission+0x1e/0x90 [ 8921.814595] [] do_readv_writev+0xe2/0x1e0 [ 8921.816702] [] ? do_setitimer+0x1ac/0x200 [ 8921.818819] [] ? get_parent_ip+0x11/0x50 [ 8921.820863] [] ? sub_preempt_count+0xae/0xf0 [ 8921.823318] [] vfs_writev+0x46/0x60 [ 8921.825219] [] sys_writev+0x4f/0xb0 [ 8921.827127] [] system_call_fastpath+0x16/0x1b [ 8921.829384] ---[ end trace dffe390f30db9eb7 ]--- Signed-off-by: Sasha Levin Acked-by: Rémi Denis-Courmont Signed-off-by: David S. Miller diff --git a/net/phonet/pep.c b/net/phonet/pep.c index 9f60008..9726fe6 100644 --- a/net/phonet/pep.c +++ b/net/phonet/pep.c @@ -1130,6 +1130,9 @@ static int pep_sendmsg(struct kiocb *iocb, struct sock *sk, int flags = msg->msg_flags; int err, done; + if (len > USHRT_MAX) + return -EMSGSIZE; + if ((msg->msg_flags & ~(MSG_DONTWAIT|MSG_EOR|MSG_NOSIGNAL| MSG_CMSG_COMPAT)) || !(msg->msg_flags & MSG_EOR)) -- cgit v0.10.2 From 5a4309746cd74734daa964acb02690c22b3c8911 Mon Sep 17 00:00:00 2001 From: Veaceslav Falico Date: Thu, 5 Apr 2012 03:47:43 +0000 Subject: bonding: properly unset current_arp_slave on slave link up When a slave comes up, we're unsetting the current_arp_slave without removing active flags from it, which can lead to situations where we have more than one slave with active flags in active-backup mode. To avoid this situation we must remove the active flags from a slave before removing it as a current_arp_slave. Signed-off-by: Veaceslav Falico Signed-off-by: Jay Vosburgh Signed-off-by: Andy Gospodarek Signed-off-by: Marcelo Ricardo Leitner Signed-off-by: David S. Miller diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index fc8a8d5..62d2409 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -3010,7 +3010,11 @@ static void bond_ab_arp_commit(struct bonding *bond, int delta_in_ticks) trans_start + delta_in_ticks)) || bond->curr_active_slave != slave) { slave->link = BOND_LINK_UP; - bond->current_arp_slave = NULL; + if (bond->current_arp_slave) { + bond_set_slave_inactive_flags( + bond->current_arp_slave); + bond->current_arp_slave = NULL; + } pr_info("%s: link status definitely up for interface %s.\n", bond->dev->name, slave->dev->name); -- cgit v0.10.2 From 44c14c1d4cf9b6ef4993c4a69f479d1f13cb8b21 Mon Sep 17 00:00:00 2001 From: stephen hemminger Date: Mon, 2 Apr 2012 12:59:47 +0000 Subject: MAINTAINERS: update for Marvell Ethernet drivers Marvell has agreed to do maintenance on the sky2 driver. * Add the developer to the maintainers file * Remove the old reference to the long gone (sk98lin) driver * Rearrange to fit current topic organization Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller diff --git a/MAINTAINERS b/MAINTAINERS index 962232d..c411dd1 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4309,6 +4309,13 @@ W: http://www.kernel.org/doc/man-pages L: linux-man@vger.kernel.org S: Maintained +MARVELL GIGABIT ETHERNET DRIVERS (skge/sky2) +M: Mirko Lindner +M: Stephen Hemminger +L: netdev@vger.kernel.org +S: Maintained +F: drivers/net/ethernet/marvell/sk* + MARVELL LIBERTAS WIRELESS DRIVER M: Dan Williams L: libertas-dev@lists.infradead.org @@ -4339,12 +4346,6 @@ M: Nicolas Pitre S: Odd Fixes F: drivers/mmc/host/mvsdio.* -MARVELL YUKON / SYSKONNECT DRIVER -M: Mirko Lindner -M: Ralph Roesler -W: http://www.syskonnect.com -S: Supported - MATROX FRAMEBUFFER DRIVER L: linux-fbdev@vger.kernel.org S: Orphan @@ -6116,12 +6117,6 @@ W: http://www.winischhofer.at/linuxsisusbvga.shtml S: Maintained F: drivers/usb/misc/sisusbvga/ -SKGE, SKY2 10/100/1000 GIGABIT ETHERNET DRIVERS -M: Stephen Hemminger -L: netdev@vger.kernel.org -S: Maintained -F: drivers/net/ethernet/marvell/sk* - SLAB ALLOCATOR M: Christoph Lameter M: Pekka Enberg -- cgit v0.10.2 From 3119936a289db88cf749143fa5ef6b4a4712e3c0 Mon Sep 17 00:00:00 2001 From: Thomas Abraham Date: Thu, 16 Feb 2012 22:23:58 +0900 Subject: mmc: sdhci-s3c: Remove usage of clk_type member in platform data SDHCI controllers on Exynos4 do not include the sdclk divider as per the sdhci controller specification. This case can be represented using the sdhci quirk SDHCI_QUIRK_NONSTANDARD_CLOCK instead of using an additional enum type definition 'clk_types'. Hence, usage of clk_type member in platform data is removed and the sdhci quirk is used. In addition to that, since this qurik is SoC specific, driver data is introduced to represent controllers on SoC's that require this quirk. Cc: Ben Dooks Cc: Jeongbae Seo Signed-off-by: Thomas Abraham Signed-off-by: Kukjin Kim Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c index b19e7d4..5fce143 100644 --- a/drivers/mmc/host/sdhci-s3c.c +++ b/drivers/mmc/host/sdhci-s3c.c @@ -53,6 +53,18 @@ struct sdhci_s3c { struct clk *clk_bus[MAX_BUS_CLK]; }; +/** + * struct sdhci_s3c_driver_data - S3C SDHCI platform specific driver data + * @sdhci_quirks: sdhci host specific quirks. + * + * Specifies platform specific configuration of sdhci controller. + * Note: A structure for driver specific platform data is used for future + * expansion of its usage. + */ +struct sdhci_s3c_drv_data { + unsigned int sdhci_quirks; +}; + static inline struct sdhci_s3c *to_s3c(struct sdhci_host *host) { return sdhci_priv(host); @@ -132,10 +144,10 @@ static unsigned int sdhci_s3c_consider_clock(struct sdhci_s3c *ourhost, return UINT_MAX; /* - * Clock divider's step is different as 1 from that of host controller - * when 'clk_type' is S3C_SDHCI_CLK_DIV_EXTERNAL. + * If controller uses a non-standard clock division, find the best clock + * speed possible with selected clock source and skip the division. */ - if (ourhost->pdata->clk_type) { + if (ourhost->host->quirks & SDHCI_QUIRK_NONSTANDARD_CLOCK) { rate = clk_round_rate(clksrc, wanted); return wanted - rate; } @@ -272,6 +284,8 @@ static unsigned int sdhci_cmu_get_min_clock(struct sdhci_host *host) static void sdhci_cmu_set_clock(struct sdhci_host *host, unsigned int clock) { struct sdhci_s3c *ourhost = to_s3c(host); + unsigned long timeout; + u16 clk = 0; /* don't bother if the clock is going off */ if (clock == 0) @@ -282,6 +296,25 @@ static void sdhci_cmu_set_clock(struct sdhci_host *host, unsigned int clock) clk_set_rate(ourhost->clk_bus[ourhost->cur_clk], clock); host->clock = clock; + + clk = SDHCI_CLOCK_INT_EN; + sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); + + /* Wait max 20 ms */ + timeout = 20; + while (!((clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL)) + & SDHCI_CLOCK_INT_STABLE)) { + if (timeout == 0) { + printk(KERN_ERR "%s: Internal clock never " + "stabilised.\n", mmc_hostname(host->mmc)); + return; + } + timeout--; + mdelay(1); + } + + clk |= SDHCI_CLOCK_CARD_EN; + sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); } /** @@ -382,9 +415,17 @@ static void sdhci_s3c_setup_card_detect_gpio(struct sdhci_s3c *sc) } } +static inline struct sdhci_s3c_drv_data *sdhci_s3c_get_driver_data( + struct platform_device *pdev) +{ + return (struct sdhci_s3c_drv_data *) + platform_get_device_id(pdev)->driver_data; +} + static int __devinit sdhci_s3c_probe(struct platform_device *pdev) { struct s3c_sdhci_platdata *pdata = pdev->dev.platform_data; + struct sdhci_s3c_drv_data *drv_data; struct device *dev = &pdev->dev; struct sdhci_host *host; struct sdhci_s3c *sc; @@ -414,6 +455,7 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) return PTR_ERR(host); } + drv_data = sdhci_s3c_get_driver_data(pdev); sc = sdhci_priv(host); sc->host = host; @@ -491,6 +533,8 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) /* Setup quirks for the controller */ host->quirks |= SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC; host->quirks |= SDHCI_QUIRK_NO_HISPD_BIT; + if (drv_data) + host->quirks |= drv_data->sdhci_quirks; #ifndef CONFIG_MMC_SDHCI_S3C_DMA @@ -531,7 +575,7 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) * If controller does not have internal clock divider, * we can use overriding functions instead of default. */ - if (pdata->clk_type) { + if (host->quirks & SDHCI_QUIRK_NONSTANDARD_CLOCK) { sdhci_s3c_ops.set_clock = sdhci_cmu_set_clock; sdhci_s3c_ops.get_min_clock = sdhci_cmu_get_min_clock; sdhci_s3c_ops.get_max_clock = sdhci_cmu_get_max_clock; @@ -647,9 +691,31 @@ static const struct dev_pm_ops sdhci_s3c_pmops = { #define SDHCI_S3C_PMOPS NULL #endif +#if defined(CONFIG_CPU_EXYNOS4210) || defined(CONFIG_SOC_EXYNOS4212) +static struct sdhci_s3c_drv_data exynos4_sdhci_drv_data = { + .sdhci_quirks = SDHCI_QUIRK_NONSTANDARD_CLOCK, +}; +#define EXYNOS4_SDHCI_DRV_DATA ((kernel_ulong_t)&exynos4_sdhci_drv_data) +#else +#define EXYNOS4_SDHCI_DRV_DATA ((kernel_ulong_t)NULL) +#endif + +static struct platform_device_id sdhci_s3c_driver_ids[] = { + { + .name = "s3c-sdhci", + .driver_data = (kernel_ulong_t)NULL, + }, { + .name = "exynos4-sdhci", + .driver_data = EXYNOS4_SDHCI_DRV_DATA, + }, + { } +}; +MODULE_DEVICE_TABLE(platform, sdhci_s3c_driver_ids); + static struct platform_driver sdhci_s3c_driver = { .probe = sdhci_s3c_probe, .remove = __devexit_p(sdhci_s3c_remove), + .id_table = sdhci_s3c_driver_ids, .driver = { .owner = THIS_MODULE, .name = "s3c-sdhci", -- cgit v0.10.2 From 0d22c77089c86416324d0d87e7ef8cfa931e53cd Mon Sep 17 00:00:00 2001 From: Thomas Abraham Date: Sat, 31 Mar 2012 23:29:45 -0400 Subject: mmc: sdhci-s3c: derive transfer width host cap from max_width in platdata max_width member in platform data can be used to derive the mmc bus transfer width that can be supported by the controller. Signed-off-by: Thomas Abraham Signed-off-by: Kukjin Kim Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c index 5fce143..dab1a77 100644 --- a/drivers/mmc/host/sdhci-s3c.c +++ b/drivers/mmc/host/sdhci-s3c.c @@ -562,6 +562,14 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) if (pdata->cd_type == S3C_SDHCI_CD_PERMANENT) host->mmc->caps = MMC_CAP_NONREMOVABLE; + switch (pdata->max_width) { + case 8: + host->mmc->caps |= MMC_CAP_8_BIT_DATA; + case 4: + host->mmc->caps |= MMC_CAP_4_BIT_DATA; + break; + } + if (pdata->pm_caps) host->mmc->pm_caps |= pdata->pm_caps; -- cgit v0.10.2 From 1d4dc338bb7cbbadcb5a527b1b0e897b5cde1701 Mon Sep 17 00:00:00 2001 From: Thomas Abraham Date: Thu, 16 Feb 2012 22:23:59 +0900 Subject: mmc: sdhci-s3c: Keep a copy of platform data and use it The platform data is copied into driver's private data and the copy is used for all access to the platform data. This simpifies the addition of device tree support for the sdhci-s3c driver. Signed-off-by: Thomas Abraham Signed-off-by: Kukjin Kim Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c index dab1a77..e81a033 100644 --- a/drivers/mmc/host/sdhci-s3c.c +++ b/drivers/mmc/host/sdhci-s3c.c @@ -424,7 +424,7 @@ static inline struct sdhci_s3c_drv_data *sdhci_s3c_get_driver_data( static int __devinit sdhci_s3c_probe(struct platform_device *pdev) { - struct s3c_sdhci_platdata *pdata = pdev->dev.platform_data; + struct s3c_sdhci_platdata *pdata; struct sdhci_s3c_drv_data *drv_data; struct device *dev = &pdev->dev; struct sdhci_host *host; @@ -432,7 +432,7 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) struct resource *res; int ret, irq, ptr, clks; - if (!pdata) { + if (!pdev->dev.platform_data) { dev_err(dev, "no device data specified\n"); return -ENOENT; } @@ -455,6 +455,13 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) return PTR_ERR(host); } + pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) { + ret = -ENOMEM; + goto err_io_clk; + } + memcpy(pdata, pdev->dev.platform_data, sizeof(*pdata)); + drv_data = sdhci_s3c_get_driver_data(pdev); sc = sdhci_priv(host); -- cgit v0.10.2 From 9bda6da7ff7d35ef757e235aae559e679d3a9493 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Thu, 8 Mar 2012 23:24:53 -0500 Subject: mmc: sdhci-s3c: use devm_ functions The various devm_ functions allocate memory that is released when a driver detaches. This patch uses these functions for data that is allocated in the probe function of a platform device and is only freed in the remove function. By using devm_ioremap, it also removes a potential memory leak, because there was no call to iounmap in the probe function. The call to platform_get_resource was moved just to make it closer to the place where its result it used. Signed-off-by: Julia Lawall Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c index e81a033..c3144cb 100644 --- a/drivers/mmc/host/sdhci-s3c.c +++ b/drivers/mmc/host/sdhci-s3c.c @@ -443,12 +443,6 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) return irq; } - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(dev, "no memory specified\n"); - return -ENOENT; - } - host = sdhci_alloc_host(dev, sizeof(struct sdhci_s3c)); if (IS_ERR(host)) { dev_err(dev, "sdhci_alloc_host() failed\n"); @@ -513,15 +507,8 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) goto err_no_busclks; } - sc->ioarea = request_mem_region(res->start, resource_size(res), - mmc_hostname(host->mmc)); - if (!sc->ioarea) { - dev_err(dev, "failed to reserve register area\n"); - ret = -ENXIO; - goto err_req_regs; - } - - host->ioaddr = ioremap_nocache(res->start, resource_size(res)); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + host->ioaddr = devm_request_and_ioremap(&pdev->dev, res); if (!host->ioaddr) { dev_err(dev, "failed to map registers\n"); ret = -ENXIO; @@ -606,7 +593,7 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) ret = sdhci_add_host(host); if (ret) { dev_err(dev, "sdhci_add_host() failed\n"); - goto err_add_host; + goto err_req_regs; } /* The following two methods of card detection might call @@ -620,10 +607,6 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) return 0; - err_add_host: - release_resource(sc->ioarea); - kfree(sc->ioarea); - err_req_regs: for (ptr = 0; ptr < MAX_BUS_CLK; ptr++) { if (sc->clk_bus[ptr]) { @@ -669,10 +652,6 @@ static int __devexit sdhci_s3c_remove(struct platform_device *pdev) clk_disable(sc->clk_io); clk_put(sc->clk_io); - iounmap(host->ioaddr); - release_resource(sc->ioarea); - kfree(sc->ioarea); - sdhci_free_host(host); platform_set_drvdata(pdev, NULL); -- cgit v0.10.2 From d5e9c02cab60920d5ac16a8244bb6085dc27564f Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sat, 3 Mar 2012 00:46:41 +0000 Subject: mmc: sdhci-s3c: Use CONFIG_PM_SLEEP to ifdef system suspend This matches current best practice as one can have runtime PM enabled without system sleep and CONFIG_PM is defined for both. Signed-off-by: Mark Brown Acked-by: Jaehoon Chung Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c index c3144cb..2ea3e6b 100644 --- a/drivers/mmc/host/sdhci-s3c.c +++ b/drivers/mmc/host/sdhci-s3c.c @@ -20,6 +20,9 @@ #include #include #include +#include +#include +#include #include @@ -658,8 +661,7 @@ static int __devexit sdhci_s3c_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM - +#ifdef CONFIG_PM_SLEEP static int sdhci_s3c_suspend(struct device *dev) { struct sdhci_host *host = dev_get_drvdata(dev); @@ -673,10 +675,11 @@ static int sdhci_s3c_resume(struct device *dev) return sdhci_resume_host(host); } +#endif +#ifdef CONFIG_PM static const struct dev_pm_ops sdhci_s3c_pmops = { - .suspend = sdhci_s3c_suspend, - .resume = sdhci_s3c_resume, + SET_SYSTEM_SLEEP_PM_OPS(sdhci_s3c_suspend, sdhci_s3c_resume) }; #define SDHCI_S3C_PMOPS (&sdhci_s3c_pmops) -- cgit v0.10.2 From 9f4e8151dbbc4ca4d5dd7792666a50c137102204 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sat, 31 Mar 2012 23:31:55 -0400 Subject: mmc: sdhci-s3c: Enable runtime power management Since most of the work is already done by the core we just need to add runtime suspend methods and tell the PM core that runtime PM is enabled for this device. Signed-off-by: Mark Brown Acked-by: Jaehoon Chung Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c index 2ea3e6b..55a164f 100644 --- a/drivers/mmc/host/sdhci-s3c.c +++ b/drivers/mmc/host/sdhci-s3c.c @@ -23,6 +23,7 @@ #include #include #include +#include #include @@ -593,9 +594,16 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) if (pdata->host_caps2) host->mmc->caps2 |= pdata->host_caps2; + pm_runtime_enable(&pdev->dev); + pm_runtime_set_autosuspend_delay(&pdev->dev, 50); + pm_runtime_use_autosuspend(&pdev->dev); + pm_suspend_ignore_children(&pdev->dev, 1); + ret = sdhci_add_host(host); if (ret) { dev_err(dev, "sdhci_add_host() failed\n"); + pm_runtime_forbid(&pdev->dev); + pm_runtime_get_noresume(&pdev->dev); goto err_req_regs; } @@ -646,6 +654,8 @@ static int __devexit sdhci_s3c_remove(struct platform_device *pdev) sdhci_remove_host(host, 1); + pm_runtime_disable(&pdev->dev); + for (ptr = 0; ptr < 3; ptr++) { if (sc->clk_bus[ptr]) { clk_disable(sc->clk_bus[ptr]); @@ -677,9 +687,27 @@ static int sdhci_s3c_resume(struct device *dev) } #endif +#ifdef CONFIG_PM_RUNTIME +static int sdhci_s3c_runtime_suspend(struct device *dev) +{ + struct sdhci_host *host = dev_get_drvdata(dev); + + return sdhci_runtime_suspend_host(host); +} + +static int sdhci_s3c_runtime_resume(struct device *dev) +{ + struct sdhci_host *host = dev_get_drvdata(dev); + + return sdhci_runtime_resume_host(host); +} +#endif + #ifdef CONFIG_PM static const struct dev_pm_ops sdhci_s3c_pmops = { SET_SYSTEM_SLEEP_PM_OPS(sdhci_s3c_suspend, sdhci_s3c_resume) + SET_RUNTIME_PM_OPS(sdhci_s3c_runtime_suspend, sdhci_s3c_runtime_resume, + NULL) }; #define SDHCI_S3C_PMOPS (&sdhci_s3c_pmops) -- cgit v0.10.2 From 66292ad92c6d3f2f1c137a1c826b331ca8595dfd Mon Sep 17 00:00:00 2001 From: Ludovic Desroches Date: Wed, 28 Mar 2012 12:28:33 +0200 Subject: mmc: atmel-mci: correct data timeout computation The HSMCI operates at a rate of up to Master Clock divided by two. Moreover previous calculation can cause overflows and so wrong timeouts. Signed-off-by: Ludovic Desroches Acked-by: Nicolas Ferre Cc: Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c index 9819dc0..34080f5 100644 --- a/drivers/mmc/host/atmel-mci.c +++ b/drivers/mmc/host/atmel-mci.c @@ -482,7 +482,14 @@ err: static inline unsigned int atmci_ns_to_clocks(struct atmel_mci *host, unsigned int ns) { - return (ns * (host->bus_hz / 1000000) + 999) / 1000; + /* + * It is easier here to use us instead of ns for the timeout, + * it prevents from overflows during calculation. + */ + unsigned int us = DIV_ROUND_UP(ns, 1000); + + /* Maximum clock frequency is host->bus_hz/2 */ + return us * (DIV_ROUND_UP(host->bus_hz, 2000000)); } static void atmci_set_timeout(struct atmel_mci *host, -- cgit v0.10.2 From 33ab4bbbdf6c60a8c196b5a28215a93aa2a4ed2e Mon Sep 17 00:00:00 2001 From: Ludovic Desroches Date: Wed, 21 Mar 2012 16:41:22 +0100 Subject: mmc: atmel-mci: r/w proof capability only available since v2xx Signed-off-by: Ludovic Desroches Acked-by: Nicolas Ferre Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c index 34080f5..c56edc4 100644 --- a/drivers/mmc/host/atmel-mci.c +++ b/drivers/mmc/host/atmel-mci.c @@ -2023,6 +2023,8 @@ static void __init atmci_get_cap(struct atmel_mci *host) /* keep only major version number */ switch (version & 0xf00) { case 0x100: + host->caps.has_pdc = 1; + break; case 0x200: host->caps.has_pdc = 1; host->caps.has_rwproof = 1; -- cgit v0.10.2 From faf8180b20882b52145b96d6d4ed082d41908f90 Mon Sep 17 00:00:00 2001 From: Ludovic Desroches Date: Wed, 21 Mar 2012 16:41:23 +0100 Subject: mmc: atmel-mci: add support for odd clock dividers Add an odd clock divider capability available from v5xx. It also involves changing the clock divider calculation, and changing the switch-case statement to use top-down fallthrough. Signed-off-by: Ludovic Desroches Acked-by: Nicolas Ferre Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/atmel-mci-regs.h b/drivers/mmc/host/atmel-mci-regs.h index 000b3ad..787aba1 100644 --- a/drivers/mmc/host/atmel-mci-regs.h +++ b/drivers/mmc/host/atmel-mci-regs.h @@ -31,6 +31,7 @@ # define ATMCI_MR_PDCFBYTE ( 1 << 13) /* Force Byte Transfer */ # define ATMCI_MR_PDCPADV ( 1 << 14) /* Padding Value */ # define ATMCI_MR_PDCMODE ( 1 << 15) /* PDC-oriented Mode */ +# define ATMCI_MR_CLKODD(x) ((x) << 16) /* LSB of Clock Divider */ #define ATMCI_DTOR 0x0008 /* Data Timeout */ # define ATMCI_DTOCYC(x) ((x) << 0) /* Data Timeout Cycles */ # define ATMCI_DTOMUL(x) ((x) << 4) /* Data Timeout Multiplier */ diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c index c56edc4..e94476b 100644 --- a/drivers/mmc/host/atmel-mci.c +++ b/drivers/mmc/host/atmel-mci.c @@ -77,6 +77,7 @@ struct atmel_mci_caps { bool has_cstor_reg; bool has_highspeed; bool has_rwproof; + bool has_odd_clk_div; }; struct atmel_mci_dma { @@ -1134,16 +1135,27 @@ static void atmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) } /* Calculate clock divider */ - clkdiv = DIV_ROUND_UP(host->bus_hz, 2 * clock_min) - 1; - if (clkdiv > 255) { - dev_warn(&mmc->class_dev, - "clock %u too slow; using %lu\n", - clock_min, host->bus_hz / (2 * 256)); - clkdiv = 255; + if (host->caps.has_odd_clk_div) { + clkdiv = DIV_ROUND_UP(host->bus_hz, clock_min) - 2; + if (clkdiv > 511) { + dev_warn(&mmc->class_dev, + "clock %u too slow; using %lu\n", + clock_min, host->bus_hz / (511 + 2)); + clkdiv = 511; + } + host->mode_reg = ATMCI_MR_CLKDIV(clkdiv >> 1) + | ATMCI_MR_CLKODD(clkdiv & 1); + } else { + clkdiv = DIV_ROUND_UP(host->bus_hz, 2 * clock_min) - 1; + if (clkdiv > 255) { + dev_warn(&mmc->class_dev, + "clock %u too slow; using %lu\n", + clock_min, host->bus_hz / (2 * 256)); + clkdiv = 255; + } + host->mode_reg = ATMCI_MR_CLKDIV(clkdiv); } - host->mode_reg = ATMCI_MR_CLKDIV(clkdiv); - /* * WRPROOF and RDPROOF prevent overruns/underruns by * stopping the clock when the FIFO is full/empty. @@ -2014,37 +2026,35 @@ static void __init atmci_get_cap(struct atmel_mci *host) "version: 0x%x\n", version); host->caps.has_dma = 0; - host->caps.has_pdc = 0; + host->caps.has_pdc = 1; host->caps.has_cfg_reg = 0; host->caps.has_cstor_reg = 0; host->caps.has_highspeed = 0; host->caps.has_rwproof = 0; + host->caps.has_odd_clk_div = 0; /* keep only major version number */ switch (version & 0xf00) { - case 0x100: - host->caps.has_pdc = 1; - break; - case 0x200: - host->caps.has_pdc = 1; - host->caps.has_rwproof = 1; - break; - case 0x300: - case 0x400: case 0x500: + host->caps.has_odd_clk_div = 1; + case 0x400: + case 0x300: #ifdef CONFIG_AT_HDMAC host->caps.has_dma = 1; #else - host->caps.has_dma = 0; dev_info(&host->pdev->dev, "has dma capability but dma engine is not selected, then use pio\n"); #endif + host->caps.has_pdc = 0; host->caps.has_cfg_reg = 1; host->caps.has_cstor_reg = 1; host->caps.has_highspeed = 1; + case 0x200: host->caps.has_rwproof = 1; + case 0x100: break; default: + host->caps.has_pdc = 0; dev_warn(&host->pdev->dev, "Unmanaged mci version, set minimum capabilities\n"); break; -- cgit v0.10.2 From 5865f2876baa5c68fd0d50029dd220ce19f3d2af Mon Sep 17 00:00:00 2001 From: Ulf Hansson Date: Thu, 22 Mar 2012 11:47:26 +0100 Subject: mmc: block: Remove use of mmc_blk_set_blksize According to the specifications for SD and (e)MMC default blocksize (named BLOCKLEN in Spec.) must always be 512 bytes. Since we hardcoded to always use 512 bytes, we do not explicitly have to set it. Future improvements should potentially make it possible to use a greater blocksize than 512 bytes, but until then let's skip this. Signed-off-by: Ulf Hansson Reviewed-by: Subhash Jadavani Signed-off-by: Chris Ball diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index eed213a..b180965 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -1623,24 +1623,6 @@ static int mmc_blk_alloc_parts(struct mmc_card *card, struct mmc_blk_data *md) return ret; } -static int -mmc_blk_set_blksize(struct mmc_blk_data *md, struct mmc_card *card) -{ - int err; - - mmc_claim_host(card->host); - err = mmc_set_blocklen(card, 512); - mmc_release_host(card->host); - - if (err) { - pr_err("%s: unable to set block size to 512: %d\n", - md->disk->disk_name, err); - return -EINVAL; - } - - return 0; -} - static void mmc_blk_remove_req(struct mmc_blk_data *md) { struct mmc_card *card; @@ -1768,7 +1750,6 @@ static const struct mmc_fixup blk_fixups[] = static int mmc_blk_probe(struct mmc_card *card) { struct mmc_blk_data *md, *part_md; - int err; char cap_str[10]; /* @@ -1781,10 +1762,6 @@ static int mmc_blk_probe(struct mmc_card *card) if (IS_ERR(md)) return PTR_ERR(md); - err = mmc_blk_set_blksize(md, card); - if (err) - goto out; - string_get_size((u64)get_capacity(md->disk) << 9, STRING_UNITS_2, cap_str, sizeof(cap_str)); pr_info("%s: %s %s %s %s\n", @@ -1809,7 +1786,7 @@ static int mmc_blk_probe(struct mmc_card *card) out: mmc_blk_remove_parts(card, md); mmc_blk_remove_req(md); - return err; + return 0; } static void mmc_blk_remove(struct mmc_card *card) @@ -1845,8 +1822,6 @@ static int mmc_blk_resume(struct mmc_card *card) struct mmc_blk_data *md = mmc_get_drvdata(card); if (md) { - mmc_blk_set_blksize(md, card); - /* * Resume involves the card going into idle state, * so current partition is always the main one. -- cgit v0.10.2 From f93882570496aa02ba8a47bfaf81cce43046b978 Mon Sep 17 00:00:00 2001 From: Simon Horman Date: Wed, 28 Mar 2012 18:01:09 +0900 Subject: mmc: sh_mmcif: double clock speed Correct an off-by one error when calculating the clock divisor in cases where the host clock is a power of two of the target clock. Previously the divisor was one greater than the correct value in these cases leading to the clock being set at half the desired speed. Thanks to Guennadi Liakhovetski for working with me on the logic for this change. Tested-by: Cao Minh Hiep Acked-by: Guennadi Liakhovetski Signed-off-by: Simon Horman Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c index aafaf0b..d79c643 100644 --- a/drivers/mmc/host/sh_mmcif.c +++ b/drivers/mmc/host/sh_mmcif.c @@ -454,7 +454,8 @@ static void sh_mmcif_clock_control(struct sh_mmcif_host *host, unsigned int clk) sh_mmcif_bitset(host, MMCIF_CE_CLK_CTRL, CLK_SUP_PCLK); else sh_mmcif_bitset(host, MMCIF_CE_CLK_CTRL, CLK_CLEAR & - ((fls(host->clk / clk) - 1) << 16)); + ((fls(DIV_ROUND_UP(host->clk, + clk) - 1) - 1) << 16)); sh_mmcif_bitset(host, MMCIF_CE_CLK_CTRL, CLK_ENABLE); } -- cgit v0.10.2 From 930f152cc9998388031af577843baae572ac8ab6 Mon Sep 17 00:00:00 2001 From: Simon Horman Date: Wed, 28 Mar 2012 18:01:10 +0900 Subject: mmc: sh_mmcif: mmc->f_max should be half of the bus clock mmc->f_max should be half of the bus clock. And now that mmc->f_max is not equal to the bus clock the latter should be used directly to calculate mmc->f_min. Cc: Magnus Damm Tested-by: Cao Minh Hiep Acked-by: Guennadi Liakhovetski Signed-off-by: Simon Horman Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c index d79c643..4bb999e 100644 --- a/drivers/mmc/host/sh_mmcif.c +++ b/drivers/mmc/host/sh_mmcif.c @@ -1298,14 +1298,14 @@ static int __devinit sh_mmcif_probe(struct platform_device *pdev) spin_lock_init(&host->lock); mmc->ops = &sh_mmcif_ops; - mmc->f_max = host->clk; + mmc->f_max = host->clk / 2; /* close to 400KHz */ - if (mmc->f_max < 51200000) - mmc->f_min = mmc->f_max / 128; - else if (mmc->f_max < 102400000) - mmc->f_min = mmc->f_max / 256; + if (host->clk < 51200000) + mmc->f_min = host->clk / 128; + else if (host->clk < 102400000) + mmc->f_min = host->clk / 256; else - mmc->f_min = mmc->f_max / 512; + mmc->f_min = host->clk / 512; if (pd->ocr) mmc->ocr_avail = pd->ocr; mmc->caps = MMC_CAP_MMC_HIGHSPEED; -- cgit v0.10.2 From eb91b9118db8c05a5a1257b594b021d32b491254 Mon Sep 17 00:00:00 2001 From: Simon Horman Date: Wed, 28 Mar 2012 18:01:11 +0900 Subject: mmc: sh_mmcif: Simplify calculation of mmc->f_min There is no need to tune mmc->f_min to a value near 400kHz as the MMC core begins testing frequencies at 400kHz regardless of the value of mmc->f_min. As suggested by Guennadi Liakhovetski. Cc: Magnus Damm Acked-by: Guennadi Liakhovetski Tested-by: Cao Minh Hiep Signed-off-by: Simon Horman Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c index 4bb999e..724b35e 100644 --- a/drivers/mmc/host/sh_mmcif.c +++ b/drivers/mmc/host/sh_mmcif.c @@ -1299,13 +1299,7 @@ static int __devinit sh_mmcif_probe(struct platform_device *pdev) mmc->ops = &sh_mmcif_ops; mmc->f_max = host->clk / 2; - /* close to 400KHz */ - if (host->clk < 51200000) - mmc->f_min = host->clk / 128; - else if (host->clk < 102400000) - mmc->f_min = host->clk / 256; - else - mmc->f_min = host->clk / 512; + mmc->f_min = host->clk / 512; if (pd->ocr) mmc->ocr_avail = pd->ocr; mmc->caps = MMC_CAP_MMC_HIGHSPEED; -- cgit v0.10.2 From 210b7d28598e402548b0164ca2f543e15aab8c6e Mon Sep 17 00:00:00 2001 From: Manuel Lauss Date: Thu, 29 Mar 2012 19:05:04 +0200 Subject: mmc: sdhci-pci: add quirks for broken MSI on O2Micro controllers MSI on my O2Micro OZ600 SD card reader is broken. This patch adds a quirk to disable MSI on these controllers. Signed-off-by: Manuel Lauss Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index fbbebe2..9303f7f 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -561,6 +561,7 @@ static int jmicron_resume(struct sdhci_pci_chip *chip) static const struct sdhci_pci_fixes sdhci_o2 = { .probe = o2_probe, + .quirks2 = SDHCI_QUIRK2_BROKEN_MSI, }; static const struct sdhci_pci_fixes sdhci_jmicron = { @@ -1418,7 +1419,8 @@ static int __devinit sdhci_pci_probe(struct pci_dev *pdev, slots = chip->num_slots; /* Quirk may have changed this */ - pci_enable_msi(pdev); + if (!(chip->quirks2 & SDHCI_QUIRK2_BROKEN_MSI)) + pci_enable_msi(pdev); for (i = 0; i < slots; i++) { slot = sdhci_pci_probe_slot(pdev, chip, first_bar, i); diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h index e9051e1..9752fe4 100644 --- a/include/linux/mmc/sdhci.h +++ b/include/linux/mmc/sdhci.h @@ -91,6 +91,8 @@ struct sdhci_host { unsigned int quirks2; /* More deviations from spec. */ #define SDHCI_QUIRK2_HOST_OFF_CARD_ON (1<<0) +/* broken MSI Interrupts */ +#define SDHCI_QUIRK2_BROKEN_MSI (1<<1) int irq; /* Device IRQ */ void __iomem *ioaddr; /* Mapped address */ -- cgit v0.10.2 From 6500c8ed957ac7b1ff37045ba6a2ad39ab2a8dbc Mon Sep 17 00:00:00 2001 From: Subhash Jadavani Date: Fri, 30 Mar 2012 12:10:18 +0530 Subject: mmc: bus: print bus speed mode of UHS-I card When UHS-I card is detected also print the bus speed mode in which UHS-I card will be running. Signed-off-by: Subhash Jadavani Reviewed-by: Namjae Jeon Acked-by: Aaron Lu Signed-off-by: Chris Ball diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c index 5d011a3..3f60606 100644 --- a/drivers/mmc/core/bus.c +++ b/drivers/mmc/core/bus.c @@ -267,6 +267,15 @@ int mmc_add_card(struct mmc_card *card) { int ret; const char *type; + const char *uhs_bus_speed_mode = ""; + static const char *const uhs_speeds[] = { + [UHS_SDR12_BUS_SPEED] = "SDR12 ", + [UHS_SDR25_BUS_SPEED] = "SDR25 ", + [UHS_SDR50_BUS_SPEED] = "SDR50 ", + [UHS_SDR104_BUS_SPEED] = "SDR104 ", + [UHS_DDR50_BUS_SPEED] = "DDR50 ", + }; + dev_set_name(&card->dev, "%s:%04x", mmc_hostname(card->host), card->rca); @@ -296,6 +305,10 @@ int mmc_add_card(struct mmc_card *card) break; } + if (mmc_sd_card_uhs(card) && + (card->sd_bus_speed < ARRAY_SIZE(uhs_speeds))) + uhs_bus_speed_mode = uhs_speeds[card->sd_bus_speed]; + if (mmc_host_is_spi(card->host)) { pr_info("%s: new %s%s%s card on SPI\n", mmc_hostname(card->host), @@ -303,13 +316,13 @@ int mmc_add_card(struct mmc_card *card) mmc_card_ddr_mode(card) ? "DDR " : "", type); } else { - pr_info("%s: new %s%s%s%s card at address %04x\n", + pr_info("%s: new %s%s%s%s%s card at address %04x\n", mmc_hostname(card->host), mmc_card_uhs(card) ? "ultra high speed " : (mmc_card_highspeed(card) ? "high speed " : ""), (mmc_card_hs200(card) ? "HS200 " : ""), mmc_card_ddr_mode(card) ? "DDR " : "", - type, card->rca); + uhs_bus_speed_mode, type, card->rca); } #ifdef CONFIG_DEBUG_FS -- cgit v0.10.2 From e841a7c69b708eeaf784fd517978006e8319b03a Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sun, 1 Apr 2012 00:34:58 -0400 Subject: mmc: sdio: Use empty system suspend/resume callbacks at the bus level Neil Brown reports that commit 35cd133c PM: Run the driver callback directly if the subsystem one is not there breaks suspend for his libertas wifi, because SDIO has a protocol where the suspend method can return -ENOSYS and this means "There is no point in suspending, just turn me off". Moreover, the suspend methods provided by SDIO drivers are not supposed to be called by the PM core or bus-level suspend routines (which aren't presend for SDIO). Instead, when the SDIO core gets to suspend the device's ancestor, it calls the device driver's suspend function, catches the ENOSYS, and turns the device off. The commit above breaks the SDIO core's assumption that the device drivers' callbacks won't be executed if it doesn't provide any bus-level callbacks. If fact, however, this assumption has never been really satisfied, because device class or device type suspend might very well use the driver's callback even without that commit. The simplest way to address this problem is to make the SDIO core tell the PM core to ignore driver callbacks, for example by providing no-operation suspend/resume callbacks at the bus level for it, which is implemented by this change. Reported-and-tested-by: Neil Brown Signed-off-by: Rafael J. Wysocki [stable: please apply to 3.3-stable only] Cc: Signed-off-by: Chris Ball diff --git a/drivers/mmc/core/sdio_bus.c b/drivers/mmc/core/sdio_bus.c index 40989e6..236842e 100644 --- a/drivers/mmc/core/sdio_bus.c +++ b/drivers/mmc/core/sdio_bus.c @@ -192,9 +192,15 @@ static int sdio_bus_remove(struct device *dev) return ret; } -#ifdef CONFIG_PM_RUNTIME +#ifdef CONFIG_PM + +static int pm_no_operation(struct device *dev) +{ + return 0; +} static const struct dev_pm_ops sdio_bus_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(pm_no_operation, pm_no_operation) SET_RUNTIME_PM_OPS( pm_generic_runtime_suspend, pm_generic_runtime_resume, @@ -204,11 +210,11 @@ static const struct dev_pm_ops sdio_bus_pm_ops = { #define SDIO_PM_OPS_PTR (&sdio_bus_pm_ops) -#else /* !CONFIG_PM_RUNTIME */ +#else /* !CONFIG_PM */ #define SDIO_PM_OPS_PTR NULL -#endif /* !CONFIG_PM_RUNTIME */ +#endif /* !CONFIG_PM */ static struct bus_type sdio_bus_type = { .name = "sdio", -- cgit v0.10.2 From d59d77ed1e0cdd254f99260013b27d64dc1dffac Mon Sep 17 00:00:00 2001 From: Balaji T K Date: Fri, 24 Feb 2012 21:14:33 +0530 Subject: mmc: omap_hsmmc: use runtime put sync in probe error patch pm_runtime_put_sync instead of autosuspend pm runtime API because iounmap(host->base) follows immediately. Reported-by: Rajendra Nayak Signed-off-by: Balaji T K Signed-off-by: Venkatraman S Cc: Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 47adb16..f15b04b 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -2018,8 +2018,7 @@ err_reg: err_irq_cd_init: free_irq(host->irq, host); err_irq: - pm_runtime_mark_last_busy(host->dev); - pm_runtime_put_autosuspend(host->dev); + pm_runtime_put_sync(host->dev); pm_runtime_disable(host->dev); clk_put(host->fclk); if (host->got_dbclk) { -- cgit v0.10.2 From 92a3aebf06bdef849cc53aba99f963a9ae397e9d Mon Sep 17 00:00:00 2001 From: Balaji T K Date: Fri, 24 Feb 2012 21:14:34 +0530 Subject: mmc: omap_hsmmc: context save after enabling runtime pm Call context save api after enabling runtime pm to make sure that register access in context save api happens with clk enabled. Signed-off-by: Balaji T K Signed-off-by: Venkatraman S Cc: Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index f15b04b..4ee1570 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -1875,8 +1875,6 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev) goto err1; } - omap_hsmmc_context_save(host); - if (host->pdata->controller_flags & OMAP_HSMMC_BROKEN_MULTIBLOCK_READ) { dev_info(&pdev->dev, "multiblock reads disabled due to 35xx erratum 2.1.1.128; MMC read performance may suffer\n"); mmc->caps2 |= MMC_CAP2_NO_MULTI_READ; @@ -1887,6 +1885,8 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev) pm_runtime_set_autosuspend_delay(host->dev, MMC_AUTOSUSPEND_DELAY); pm_runtime_use_autosuspend(host->dev); + omap_hsmmc_context_save(host); + if (cpu_is_omap2430()) { host->dbclk = clk_get(&pdev->dev, "mmchsdb_fck"); /* -- cgit v0.10.2 From 927ce944aebdcac0fa757d4e6448a6972184db8c Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Wed, 14 Mar 2012 11:18:27 +0200 Subject: mmc: omap_hsmmc: trivial cleanups A bunch of non-functional cleanups to the omap_hsmmc driver. It basically decreases indentation level, drop unneded dereferences and drop unneded accesses to the platform_device structure. Signed-off-by: Felipe Balbi Signed-off-by: Venkatraman S Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 4ee1570..920964a 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -2041,30 +2041,28 @@ static int omap_hsmmc_remove(struct platform_device *pdev) struct omap_hsmmc_host *host = platform_get_drvdata(pdev); struct resource *res; - if (host) { - pm_runtime_get_sync(host->dev); - mmc_remove_host(host->mmc); - if (host->use_reg) - omap_hsmmc_reg_put(host); - if (host->pdata->cleanup) - host->pdata->cleanup(&pdev->dev); - free_irq(host->irq, host); - if (mmc_slot(host).card_detect_irq) - free_irq(mmc_slot(host).card_detect_irq, host); - - pm_runtime_put_sync(host->dev); - pm_runtime_disable(host->dev); - clk_put(host->fclk); - if (host->got_dbclk) { - clk_disable(host->dbclk); - clk_put(host->dbclk); - } + pm_runtime_get_sync(host->dev); + mmc_remove_host(host->mmc); + if (host->use_reg) + omap_hsmmc_reg_put(host); + if (host->pdata->cleanup) + host->pdata->cleanup(&pdev->dev); + free_irq(host->irq, host); + if (mmc_slot(host).card_detect_irq) + free_irq(mmc_slot(host).card_detect_irq, host); - mmc_free_host(host->mmc); - iounmap(host->base); - omap_hsmmc_gpio_free(pdev->dev.platform_data); + pm_runtime_put_sync(host->dev); + pm_runtime_disable(host->dev); + clk_put(host->fclk); + if (host->got_dbclk) { + clk_disable(host->dbclk); + clk_put(host->dbclk); } + mmc_free_host(host->mmc); + iounmap(host->base); + omap_hsmmc_gpio_free(pdev->dev.platform_data); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (res) release_mem_region(res->start, resource_size(res)); @@ -2077,49 +2075,45 @@ static int omap_hsmmc_remove(struct platform_device *pdev) static int omap_hsmmc_suspend(struct device *dev) { int ret = 0; - struct platform_device *pdev = to_platform_device(dev); - struct omap_hsmmc_host *host = platform_get_drvdata(pdev); + struct omap_hsmmc_host *host = dev_get_drvdata(dev); - if (host && host->suspended) + if (!host) return 0; - if (host) { - pm_runtime_get_sync(host->dev); - host->suspended = 1; - if (host->pdata->suspend) { - ret = host->pdata->suspend(&pdev->dev, - host->slot_id); - if (ret) { - dev_dbg(mmc_dev(host->mmc), - "Unable to handle MMC board" - " level suspend\n"); - host->suspended = 0; - return ret; - } - } - ret = mmc_suspend_host(host->mmc); + if (host && host->suspended) + return 0; + pm_runtime_get_sync(host->dev); + host->suspended = 1; + if (host->pdata->suspend) { + ret = host->pdata->suspend(dev, host->slot_id); if (ret) { + dev_dbg(dev, "Unable to handle MMC board" + " level suspend\n"); host->suspended = 0; - if (host->pdata->resume) { - ret = host->pdata->resume(&pdev->dev, - host->slot_id); - if (ret) - dev_dbg(mmc_dev(host->mmc), - "Unmask interrupt failed\n"); - } - goto err; + return ret; } + } + ret = mmc_suspend_host(host->mmc); - if (!(host->mmc->pm_flags & MMC_PM_KEEP_POWER)) { - omap_hsmmc_disable_irq(host); - OMAP_HSMMC_WRITE(host->base, HCTL, - OMAP_HSMMC_READ(host->base, HCTL) & ~SDBP); + if (ret) { + host->suspended = 0; + if (host->pdata->resume) { + ret = host->pdata->resume(dev, host->slot_id); + if (ret) + dev_dbg(dev, "Unmask interrupt failed\n"); } - if (host->got_dbclk) - clk_disable(host->dbclk); + goto err; + } + if (!(host->mmc->pm_flags & MMC_PM_KEEP_POWER)) { + omap_hsmmc_disable_irq(host); + OMAP_HSMMC_WRITE(host->base, HCTL, + OMAP_HSMMC_READ(host->base, HCTL) & ~SDBP); } + + if (host->got_dbclk) + clk_disable(host->dbclk); err: pm_runtime_put_sync(host->dev); return ret; @@ -2129,38 +2123,37 @@ err: static int omap_hsmmc_resume(struct device *dev) { int ret = 0; - struct platform_device *pdev = to_platform_device(dev); - struct omap_hsmmc_host *host = platform_get_drvdata(pdev); + struct omap_hsmmc_host *host = dev_get_drvdata(dev); + + if (!host) + return 0; if (host && !host->suspended) return 0; - if (host) { - pm_runtime_get_sync(host->dev); + pm_runtime_get_sync(host->dev); - if (host->got_dbclk) - clk_enable(host->dbclk); + if (host->got_dbclk) + clk_enable(host->dbclk); - if (!(host->mmc->pm_flags & MMC_PM_KEEP_POWER)) - omap_hsmmc_conf_bus_power(host); + if (!(host->mmc->pm_flags & MMC_PM_KEEP_POWER)) + omap_hsmmc_conf_bus_power(host); - if (host->pdata->resume) { - ret = host->pdata->resume(&pdev->dev, host->slot_id); - if (ret) - dev_dbg(mmc_dev(host->mmc), - "Unmask interrupt failed\n"); - } + if (host->pdata->resume) { + ret = host->pdata->resume(dev, host->slot_id); + if (ret) + dev_dbg(dev, "Unmask interrupt failed\n"); + } - omap_hsmmc_protect_card(host); + omap_hsmmc_protect_card(host); - /* Notify the core to resume the host */ - ret = mmc_resume_host(host->mmc); - if (ret == 0) - host->suspended = 0; + /* Notify the core to resume the host */ + ret = mmc_resume_host(host->mmc); + if (ret == 0) + host->suspended = 0; - pm_runtime_mark_last_busy(host->dev); - pm_runtime_put_autosuspend(host->dev); - } + pm_runtime_mark_last_busy(host->dev); + pm_runtime_put_autosuspend(host->dev); return ret; @@ -2177,7 +2170,7 @@ static int omap_hsmmc_runtime_suspend(struct device *dev) host = platform_get_drvdata(to_platform_device(dev)); omap_hsmmc_context_save(host); - dev_dbg(mmc_dev(host->mmc), "disabled\n"); + dev_dbg(dev, "disabled\n"); return 0; } @@ -2188,7 +2181,7 @@ static int omap_hsmmc_runtime_resume(struct device *dev) host = platform_get_drvdata(to_platform_device(dev)); omap_hsmmc_context_restore(host); - dev_dbg(mmc_dev(host->mmc), "enabled\n"); + dev_dbg(dev, "enabled\n"); return 0; } -- cgit v0.10.2 From efa25fd3a33275861aa74ff03a512423873a8805 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Wed, 14 Mar 2012 11:18:28 +0200 Subject: mmc: omap_hsmmc: make it behave well as a module If we put probe() on __init section, that will never work for multiple module insertions/removals. In order to make it work properly, move probe to __devinit section and use platform_driver_register() instead of platform_driver_probe(). Signed-off-by: Felipe Balbi Signed-off-by: Venkatraman S Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 920964a..2aa963d 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -1785,7 +1785,7 @@ static inline struct omap_mmc_platform_data } #endif -static int __init omap_hsmmc_probe(struct platform_device *pdev) +static int __devinit omap_hsmmc_probe(struct platform_device *pdev) { struct omap_mmc_platform_data *pdata = pdev->dev.platform_data; struct mmc_host *mmc; @@ -2036,7 +2036,7 @@ err: return ret; } -static int omap_hsmmc_remove(struct platform_device *pdev) +static int __devexit omap_hsmmc_remove(struct platform_device *pdev) { struct omap_hsmmc_host *host = platform_get_drvdata(pdev); struct resource *res; @@ -2194,7 +2194,8 @@ static struct dev_pm_ops omap_hsmmc_dev_pm_ops = { }; static struct platform_driver omap_hsmmc_driver = { - .remove = omap_hsmmc_remove, + .probe = omap_hsmmc_probe, + .remove = __devexit_p(omap_hsmmc_remove), .driver = { .name = DRIVER_NAME, .owner = THIS_MODULE, @@ -2206,7 +2207,7 @@ static struct platform_driver omap_hsmmc_driver = { static int __init omap_hsmmc_init(void) { /* Register the MMC driver */ - return platform_driver_probe(&omap_hsmmc_driver, omap_hsmmc_probe); + return platform_driver_register(&omap_hsmmc_driver); } static void __exit omap_hsmmc_cleanup(void) -- cgit v0.10.2 From b796450b4590dbaee2d31c85b04791cafacff9b4 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Wed, 14 Mar 2012 11:18:32 +0200 Subject: mmc: omap_hsmmc: convert to module_platform_driver This will delete some boilerplate code, no functional changes. Signed-off-by: Felipe Balbi Signed-off-by: Venkatraman S Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 2aa963d..b4c59ea 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -2204,21 +2204,7 @@ static struct platform_driver omap_hsmmc_driver = { }, }; -static int __init omap_hsmmc_init(void) -{ - /* Register the MMC driver */ - return platform_driver_register(&omap_hsmmc_driver); -} - -static void __exit omap_hsmmc_cleanup(void) -{ - /* Unregister MMC driver */ - platform_driver_unregister(&omap_hsmmc_driver); -} - -module_init(omap_hsmmc_init); -module_exit(omap_hsmmc_cleanup); - +module_platform_driver(omap_hsmmc_driver); MODULE_DESCRIPTION("OMAP High Speed Multimedia Card driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:" DRIVER_NAME); -- cgit v0.10.2 From fc307df88f0d77505c19756d95be66c981c421ea Mon Sep 17 00:00:00 2001 From: Balaji T K Date: Mon, 2 Apr 2012 12:26:47 +0530 Subject: mmc: omap_hsmmc: fix module re-insertion OMAP4 and OMAP3 HSMMC IP registers differ by 0x100 offset. Adding the offset to platform_device resource structure increments the start address for every insmod operation. MMC command fails on re-insertion as module due to incorrect register base. Fix this by updating the ioremap base address only. Signed-off-by: Balaji T K Signed-off-by: Venkatraman S Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index b4c59ea..5c2b1c1 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -1818,8 +1818,6 @@ static int __devinit omap_hsmmc_probe(struct platform_device *pdev) if (res == NULL || irq < 0) return -ENXIO; - res->start += pdata->reg_offset; - res->end += pdata->reg_offset; res = request_mem_region(res->start, resource_size(res), pdev->name); if (res == NULL) return -EBUSY; @@ -1843,7 +1841,7 @@ static int __devinit omap_hsmmc_probe(struct platform_device *pdev) host->dma_ch = -1; host->irq = irq; host->slot_id = 0; - host->mapbase = res->start; + host->mapbase = res->start + pdata->reg_offset; host->base = ioremap(host->mapbase, SZ_4K); host->power_mode = MMC_POWER_OFF; host->next_data.cookie = 1; -- cgit v0.10.2 From 93fc5a47f25c41125b30c0bf4f243bf3204a1a0a Mon Sep 17 00:00:00 2001 From: Subhash Jadavani Date: Tue, 3 Apr 2012 12:25:58 +0530 Subject: mmc: core: fix power class selection mmc_select_powerclass() function returns error if eMMC VDD level supported by host is between 2.7v to 3.2v. According to eMMC specification, valid voltage for high voltage cards is 2.7v to 3.6v. This patch ensures that 2.7v to 3.6v VDD range is treated as valid range. Also, failure to set the power class shouldn't be treated as fatal error because even if setting the power class fails, card can still work in default power class. If mmc_select_powerclass() returns error, just print the warning message and go ahead with rest of the card initialization. Signed-off-by: Subhash Jadavani Acked-by: Girish K S Reviewed-by: Namjae Jeon Signed-off-by: Chris Ball diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index 02914d6..54df5ad 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -695,6 +695,11 @@ static int mmc_select_powerclass(struct mmc_card *card, else if (host->ios.clock <= 200000000) index = EXT_CSD_PWR_CL_200_195; break; + case MMC_VDD_27_28: + case MMC_VDD_28_29: + case MMC_VDD_29_30: + case MMC_VDD_30_31: + case MMC_VDD_31_32: case MMC_VDD_32_33: case MMC_VDD_33_34: case MMC_VDD_34_35: @@ -1111,11 +1116,10 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, ext_csd_bits = (bus_width == MMC_BUS_WIDTH_8) ? EXT_CSD_BUS_WIDTH_8 : EXT_CSD_BUS_WIDTH_4; err = mmc_select_powerclass(card, ext_csd_bits, ext_csd); - if (err) { - pr_err("%s: power class selection to bus width %d failed\n", - mmc_hostname(card->host), 1 << bus_width); - goto err; - } + if (err) + pr_warning("%s: power class selection to bus width %d" + " failed\n", mmc_hostname(card->host), + 1 << bus_width); } /* @@ -1147,10 +1151,10 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, err = mmc_select_powerclass(card, ext_csd_bits[idx][0], ext_csd); if (err) - pr_err("%s: power class selection to " - "bus width %d failed\n", - mmc_hostname(card->host), - 1 << bus_width); + pr_warning("%s: power class selection to " + "bus width %d failed\n", + mmc_hostname(card->host), + 1 << bus_width); err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BUS_WIDTH, @@ -1178,10 +1182,10 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, err = mmc_select_powerclass(card, ext_csd_bits[idx][1], ext_csd); if (err) - pr_err("%s: power class selection to " - "bus width %d ddr %d failed\n", - mmc_hostname(card->host), - 1 << bus_width, ddr); + pr_warning("%s: power class selection to " + "bus width %d ddr %d failed\n", + mmc_hostname(card->host), + 1 << bus_width, ddr); err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BUS_WIDTH, -- cgit v0.10.2 From 84e41d2d56fbacfd888ab1382e94e752da176582 Mon Sep 17 00:00:00 2001 From: Chris Ball Date: Tue, 3 Apr 2012 16:47:55 -0400 Subject: Revert "mmc: sdhci-pci: add quirks for broken MSI on O2Micro controllers" This reverts commit c16e981b2fd9455af670a69a84f4c8cf07e12658, because it's no longer useful once MSI support is reverted. Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index 9303f7f..fbbebe2 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -561,7 +561,6 @@ static int jmicron_resume(struct sdhci_pci_chip *chip) static const struct sdhci_pci_fixes sdhci_o2 = { .probe = o2_probe, - .quirks2 = SDHCI_QUIRK2_BROKEN_MSI, }; static const struct sdhci_pci_fixes sdhci_jmicron = { @@ -1419,8 +1418,7 @@ static int __devinit sdhci_pci_probe(struct pci_dev *pdev, slots = chip->num_slots; /* Quirk may have changed this */ - if (!(chip->quirks2 & SDHCI_QUIRK2_BROKEN_MSI)) - pci_enable_msi(pdev); + pci_enable_msi(pdev); for (i = 0; i < slots; i++) { slot = sdhci_pci_probe_slot(pdev, chip, first_bar, i); diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h index 9752fe4..e9051e1 100644 --- a/include/linux/mmc/sdhci.h +++ b/include/linux/mmc/sdhci.h @@ -91,8 +91,6 @@ struct sdhci_host { unsigned int quirks2; /* More deviations from spec. */ #define SDHCI_QUIRK2_HOST_OFF_CARD_ON (1<<0) -/* broken MSI Interrupts */ -#define SDHCI_QUIRK2_BROKEN_MSI (1<<1) int irq; /* Device IRQ */ void __iomem *ioaddr; /* Mapped address */ -- cgit v0.10.2 From 79263f33b0f3abe26d74a66824b457b94bdbef9f Mon Sep 17 00:00:00 2001 From: Chris Ball Date: Tue, 3 Apr 2012 16:48:32 -0400 Subject: Revert "mmc: sdhci-pci: Add MSI support" This reverts commit e6039832bed9a9b967796d7021f17f25b625b616. There are reports of MSI breaking SDHCI on multiple chipsets (JMicron and O2Micro, at least), so this should be reverted until we come up with a whitelist or something. Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index fbbebe2..69ef0be 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -1418,8 +1418,6 @@ static int __devinit sdhci_pci_probe(struct pci_dev *pdev, slots = chip->num_slots; /* Quirk may have changed this */ - pci_enable_msi(pdev); - for (i = 0; i < slots; i++) { slot = sdhci_pci_probe_slot(pdev, chip, first_bar, i); if (IS_ERR(slot)) { @@ -1438,8 +1436,6 @@ static int __devinit sdhci_pci_probe(struct pci_dev *pdev, return 0; free: - pci_disable_msi(pdev); - pci_set_drvdata(pdev, NULL); kfree(chip); @@ -1462,8 +1458,6 @@ static void __devexit sdhci_pci_remove(struct pci_dev *pdev) for (i = 0; i < chip->num_slots; i++) sdhci_pci_remove_slot(chip->slots[i]); - pci_disable_msi(pdev); - pci_set_drvdata(pdev, NULL); kfree(chip); } -- cgit v0.10.2 From 4188bba0e9e7ba58d231b528df495666f2742b74 Mon Sep 17 00:00:00 2001 From: Al Cooper Date: Fri, 16 Mar 2012 15:54:17 -0400 Subject: mmc: Prevent 1.8V switch for SD hosts that don't support UHS modes. The driver should not try to switch to 1.8V when the SD 3.0 host controller does not have any UHS capabilities bits set (SDR50, DDR50 or SDR104). See page 72 of "SD Specifications Part A2 SD Host Controller Simplified Specification Version 3.00" under "1.8V Signaling Enable". Instead of setting SDR12 and SDR25 in the host capabilities data structure for all V3.0 host controllers, only set them if SDR104, SDR50 or DDR50 is set in the host capabilities register. This will prevent the switch to 1.8V later. Signed-off-by: Al Cooper Acked-by: Arindam Nath Acked-by: Philip Rakity Acked-by: Girish K S Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 8262cad..9aa77f3 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2782,8 +2782,9 @@ int sdhci_add_host(struct sdhci_host *host) mmc_card_is_removable(mmc)) mmc->caps |= MMC_CAP_NEEDS_POLL; - /* UHS-I mode(s) supported by the host controller. */ - if (host->version >= SDHCI_SPEC_300) + /* Any UHS-I mode in caps implies SDR12 and SDR25 support. */ + if (caps[1] & (SDHCI_SUPPORT_SDR104 | SDHCI_SUPPORT_SDR50 | + SDHCI_SUPPORT_DDR50)) mmc->caps |= MMC_CAP_UHS_SDR12 | MMC_CAP_UHS_SDR25; /* SDR104 supports also implies SDR50 support */ -- cgit v0.10.2 From 8c2fc8e413ecc2c96b696e28d4eb1bc6cee8dc84 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Alf=20H=C3=B8gemark?= Date: Wed, 4 Apr 2012 12:27:09 -0400 Subject: mmc: sdhci-dove: Fix compile error by including module.h MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch fixes a compile error in drivers/mmc/host/sdhci-dove.c by including the linux/module.h file. Signed-off-by: Alf Høgemark Cc: Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sdhci-dove.c b/drivers/mmc/host/sdhci-dove.c index 46fd1fd..177f697 100644 --- a/drivers/mmc/host/sdhci-dove.c +++ b/drivers/mmc/host/sdhci-dove.c @@ -20,6 +20,7 @@ */ #include +#include #include #include "sdhci-pltfm.h" -- cgit v0.10.2 From 3bdc9ba892d6a294d16e9e6e0c4041926aa3d58c Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Mon, 12 Mar 2012 04:58:00 -0600 Subject: mmc: use really long write timeout to deal with crappy cards Several people have noticed that crappy SD cards take much longer to complete multiple block writes than the 300ms that Linux specifies. Try to work around this by using a three second write timeout instead. This is a generalized version of a patch from Chase Maupin , whose patch description said: * With certain SD cards timeouts like the following have been seen due to an improper calculation of the dto value: mmcblk0: error -110 transferring data, sector 4126233, nr 8, card status 0xc00 * By removing the dto calculation and setting the timeout value to the maximum specified by the SD card specification part A2 section 2.2.15 these timeouts can be avoided. * This change has been used by beagleboard users as well as the Texas Instruments SDK without a negative impact. * There are multiple discussion threads about this but the most relevant ones are: * http://talk.maemo.org/showthread.php?p=1000707#post1000707 * http://www.mail-archive.com/linux-omap@vger.kernel.org/msg42213.html * Original proposal for this fix was done by Sukumar Ghoral of Texas Instruments * Tested using a Texas Instruments AM335x EVM Signed-off-by: Paul Walmsley Tested-by: Tony Lindgren Signed-off-by: Chris Ball diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 14f262e..7474c47 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -527,10 +527,14 @@ void mmc_set_data_timeout(struct mmc_data *data, const struct mmc_card *card) if (data->flags & MMC_DATA_WRITE) /* - * The limit is really 250 ms, but that is - * insufficient for some crappy cards. + * The MMC spec "It is strongly recommended + * for hosts to implement more than 500ms + * timeout value even if the card indicates + * the 250ms maximum busy length." Even the + * previous value of 300ms is known to be + * insufficient for some cards. */ - limit_us = 300000; + limit_us = 3000000; else limit_us = 100000; -- cgit v0.10.2 From 95fc2d8f96d37995f2bd1ec49f46ee9816ddf5b7 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Wed, 28 Mar 2012 11:43:02 +0800 Subject: blackfin: fix L1 data A overflow link issue This patch fix below compile error: "bfin-uclinux-ld: L1 data A overflow!" It is due to the recent lib/gen_crc32table.c change: 46c5801eaf86e83cb3a4142ad35188db5011fff0 crc32: bolt on crc32c it added 8KiB more data to __cacheline_aligned which cause blackfin L1 data cache overflow. Signed-off-by: Mike Frysinger Signed-off-by: Bob Liu diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig index c1269a1..373a690 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig @@ -823,7 +823,7 @@ config CACHELINE_ALIGNED_L1 bool "Locate cacheline_aligned data to L1 Data Memory" default y if !BF54x default n if BF54x - depends on !SMP && !BF531 + depends on !SMP && !BF531 && !CRC32 help If enabled, cacheline_aligned data is linked into L1 data memory. (less latency) -- cgit v0.10.2 From e8c5c6da6c8aafceb9b7ca98c601db55640826b3 Mon Sep 17 00:00:00 2001 From: Bob Liu Date: Tue, 27 Mar 2012 11:27:15 +0800 Subject: blackfin: gpio: fix compile error if !CONFIG_GPIOLIB Add __gpio_get_value()/__gpio_set_value() to fix compile error if CONFIG_GPIOLIB = n. Signed-off-by: Bob Liu diff --git a/arch/blackfin/include/asm/gpio.h b/arch/blackfin/include/asm/gpio.h index 5a25856..12d3571 100644 --- a/arch/blackfin/include/asm/gpio.h +++ b/arch/blackfin/include/asm/gpio.h @@ -244,16 +244,26 @@ static inline int gpio_set_debounce(unsigned gpio, unsigned debounce) return -EINVAL; } -static inline int gpio_get_value(unsigned gpio) +static inline int __gpio_get_value(unsigned gpio) { return bfin_gpio_get_value(gpio); } -static inline void gpio_set_value(unsigned gpio, int value) +static inline void __gpio_set_value(unsigned gpio, int value) { return bfin_gpio_set_value(gpio, value); } +static inline int gpio_get_value(unsigned gpio) +{ + return __gpio_get_value(gpio); +} + +static inline void gpio_set_value(unsigned gpio, int value) +{ + return __gpio_set_value(gpio, value); +} + static inline int gpio_to_irq(unsigned gpio) { if (likely(gpio < MAX_BLACKFIN_GPIOS)) -- cgit v0.10.2 From 35fe2e73bf097409abb9b81e041db83ea08b1c93 Mon Sep 17 00:00:00 2001 From: Bob Liu Date: Thu, 5 Apr 2012 10:40:35 +0800 Subject: blackfin: update defconfig for bf527-ezkit To fix compile error: drivers/usb/musb/blackfin.h:51:3: error: #error "Please use PIO mode in MUSB driver on bf52x chip v0.0 and v0.1" make[4]: *** [drivers/usb/musb/blackfin.o] Error 1 Signed-off-by: Bob Liu diff --git a/arch/blackfin/configs/BF527-EZKIT_defconfig b/arch/blackfin/configs/BF527-EZKIT_defconfig index 9ccc18a..90b1753 100644 --- a/arch/blackfin/configs/BF527-EZKIT_defconfig +++ b/arch/blackfin/configs/BF527-EZKIT_defconfig @@ -147,6 +147,7 @@ CONFIG_USB_OTG_BLACKLIST_HUB=y CONFIG_USB_MON=y CONFIG_USB_MUSB_HDRC=y CONFIG_USB_MUSB_BLACKFIN=y +CONFIG_MUSB_PIO_ONLY=y CONFIG_USB_STORAGE=y CONFIG_USB_GADGET=y CONFIG_RTC_CLASS=y -- cgit v0.10.2 From b4f79e5cb2182f27d151da6e223186f287a615d6 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Thu, 5 Apr 2012 14:38:49 +0000 Subject: ethtool: Remove exception to the requirement of holding RTNL lock Commit e52ac3398c3d772d372b9b62ab408fd5eec96840 ('net: Use device model to get driver name in skb_gso_segment()') removed the only in-tree caller of ethtool ops that doesn't hold the RTNL lock. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index e1d9e0e..f5647b5 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -896,8 +896,7 @@ static inline u32 ethtool_rxfh_indir_default(u32 index, u32 n_rx_rings) * * All operations are optional (i.e. the function pointer may be set * to %NULL) and callers must take this into account. Callers must - * hold the RTNL, except that for @get_drvinfo the caller may or may - * not hold the RTNL. + * hold the RTNL lock. * * See the structures used by these operations for further documentation. * -- cgit v0.10.2 From 93b6a3adbd159174772702744b142d60e3891dfa Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Thu, 5 Apr 2012 14:39:10 +0000 Subject: doc, net: Remove obsolete reference to dev->poll Commit bea3348eef27e6044b6161fd04c3152215f96411 ('[NET]: Make NAPI polling independent of struct net_device objects.') removed the automatic disabling of NAPI polling by dev_close(), and drivers must now do this themselves. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller diff --git a/Documentation/networking/netdevices.txt b/Documentation/networking/netdevices.txt index 8935834..336fe8e 100644 --- a/Documentation/networking/netdevices.txt +++ b/Documentation/networking/netdevices.txt @@ -54,8 +54,7 @@ dev->open: dev->stop: Synchronization: rtnl_lock() semaphore. Context: process - Note1: netif_running() is guaranteed false - Note2: dev->poll() is guaranteed to be stopped + Note: netif_running() is guaranteed false dev->do_ioctl: Synchronization: rtnl_lock() semaphore. -- cgit v0.10.2 From 04fd3d3515612b71f96b851db7888bfe58ef2142 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Thu, 5 Apr 2012 14:39:30 +0000 Subject: doc, net: Update documentation of synchronisation for TX multiqueue Commits e308a5d806c852f56590ffdd3834d0df0cbed8d7 ('netdev: Add netdev->addr_list_lock protection.') and e8a0464cc950972824e2e128028ae3db666ec1ed ('netdev: Allocate multiple queues for TX.') introduced more fine-grained locks. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller diff --git a/Documentation/networking/netdevices.txt b/Documentation/networking/netdevices.txt index 336fe8e..b107733 100644 --- a/Documentation/networking/netdevices.txt +++ b/Documentation/networking/netdevices.txt @@ -65,7 +65,7 @@ dev->get_stats: Context: nominally process, but don't sleep inside an rwlock dev->hard_start_xmit: - Synchronization: netif_tx_lock spinlock. + Synchronization: __netif_tx_lock spinlock. When the driver sets NETIF_F_LLTX in dev->features this will be called without holding netif_tx_lock. In this case the driver @@ -87,12 +87,12 @@ dev->hard_start_xmit: Only valid when NETIF_F_LLTX is set. dev->tx_timeout: - Synchronization: netif_tx_lock spinlock. + Synchronization: netif_tx_lock spinlock; all TX queues frozen. Context: BHs disabled Notes: netif_queue_stopped() is guaranteed true dev->set_rx_mode: - Synchronization: netif_tx_lock spinlock. + Synchronization: netif_addr_lock spinlock. Context: BHs disabled struct napi_struct synchronization rules -- cgit v0.10.2 From b3cf65457fc0c8d183bdb9bc4358e5706aa63cc5 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Thu, 5 Apr 2012 14:39:47 +0000 Subject: doc, net: Update netdev operation names Commits d314774cf2cd5dfeb39a00d37deee65d4c627927 ('netdev: network device operations infrastructure') and 008298231abbeb91bc7be9e8b078607b816d1a4a ('netdev: add more functions to netdevice ops') moved and renamed net device operation pointers. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller diff --git a/Documentation/networking/driver.txt b/Documentation/networking/driver.txt index 03283da..83ce060 100644 --- a/Documentation/networking/driver.txt +++ b/Documentation/networking/driver.txt @@ -2,7 +2,7 @@ Document about softnet driver issues Transmit path guidelines: -1) The hard_start_xmit method must never return '1' under any +1) The ndo_start_xmit method must never return '1' under any normal circumstances. It is considered a hard error unless there is no way your device can tell ahead of time when it's transmit function will become busy. @@ -61,10 +61,10 @@ Transmit path guidelines: 2) Do not forget to update netdev->trans_start to jiffies after each new tx packet is given to the hardware. -3) A hard_start_xmit method must not modify the shared parts of a +3) An ndo_start_xmit method must not modify the shared parts of a cloned SKB. -4) Do not forget that once you return 0 from your hard_start_xmit +4) Do not forget that once you return 0 from your ndo_start_xmit method, it is your driver's responsibility to free up the SKB and in some finite amount of time. @@ -74,7 +74,7 @@ Transmit path guidelines: This error can deadlock sockets waiting for send buffer room to be freed up. - If you return 1 from the hard_start_xmit method, you must not keep + If you return 1 from the ndo_start_xmit method, you must not keep any reference to that SKB and you must not attempt to free it up. Probing guidelines: @@ -85,10 +85,10 @@ Probing guidelines: Close/stop guidelines: -1) After the dev->stop routine has been called, the hardware must +1) After the ndo_stop routine has been called, the hardware must not receive or transmit any data. All in flight packets must be aborted. If necessary, poll or wait for completion of any reset commands. -2) The dev->stop routine will be called by unregister_netdevice +2) The ndo_stop routine will be called by unregister_netdevice if device is still UP. diff --git a/Documentation/networking/netdevices.txt b/Documentation/networking/netdevices.txt index b107733..c7ecc70 100644 --- a/Documentation/networking/netdevices.txt +++ b/Documentation/networking/netdevices.txt @@ -47,24 +47,24 @@ packets is preferred. struct net_device synchronization rules ======================================= -dev->open: +ndo_open: Synchronization: rtnl_lock() semaphore. Context: process -dev->stop: +ndo_stop: Synchronization: rtnl_lock() semaphore. Context: process Note: netif_running() is guaranteed false -dev->do_ioctl: +ndo_do_ioctl: Synchronization: rtnl_lock() semaphore. Context: process -dev->get_stats: +ndo_get_stats: Synchronization: dev_base_lock rwlock. Context: nominally process, but don't sleep inside an rwlock -dev->hard_start_xmit: +ndo_start_xmit: Synchronization: __netif_tx_lock spinlock. When the driver sets NETIF_F_LLTX in dev->features this will be @@ -86,12 +86,12 @@ dev->hard_start_xmit: o NETDEV_TX_LOCKED Locking failed, please retry quickly. Only valid when NETIF_F_LLTX is set. -dev->tx_timeout: +ndo_tx_timeout: Synchronization: netif_tx_lock spinlock; all TX queues frozen. Context: BHs disabled Notes: netif_queue_stopped() is guaranteed true -dev->set_rx_mode: +ndo_set_rx_mode: Synchronization: netif_addr_lock spinlock. Context: BHs disabled @@ -99,7 +99,7 @@ struct napi_struct synchronization rules ======================================== napi->poll: Synchronization: NAPI_STATE_SCHED bit in napi->state. Device - driver's dev->close method will invoke napi_disable() on + driver's ndo_stop method will invoke napi_disable() on all NAPI instances which will do a sleeping poll on the NAPI_STATE_SCHED napi->state bit, waiting for all pending NAPI activity to cease. -- cgit v0.10.2 From de7aca16fd6c32719b6a7d4480b8f4685f69f7ff Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Thu, 5 Apr 2012 14:40:06 +0000 Subject: doc, net: Remove instruction to set net_device::trans_start Commit 08baf561083bc27a953aa087dd8a664bb2b88e8e ('net: txq_trans_update() helper') made it unnecessary for most drivers to set net_device::trans_start (or netdev_queue::trans_start). Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller diff --git a/Documentation/networking/driver.txt b/Documentation/networking/driver.txt index 83ce060..2128e41 100644 --- a/Documentation/networking/driver.txt +++ b/Documentation/networking/driver.txt @@ -58,13 +58,10 @@ Transmit path guidelines: TX_BUFFS_AVAIL(dp) > 0) netif_wake_queue(dp->dev); -2) Do not forget to update netdev->trans_start to jiffies after - each new tx packet is given to the hardware. - -3) An ndo_start_xmit method must not modify the shared parts of a +2) An ndo_start_xmit method must not modify the shared parts of a cloned SKB. -4) Do not forget that once you return 0 from your ndo_start_xmit +3) Do not forget that once you return 0 from your ndo_start_xmit method, it is your driver's responsibility to free up the SKB and in some finite amount of time. -- cgit v0.10.2 From e34fac1c2e9ec531c2d63a5e3aa9a6d0ef36a1d3 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Thu, 5 Apr 2012 14:40:25 +0000 Subject: doc, net: Update ndo_start_xmit return type and values Commit dc1f8bf68b311b1537cb65893430b6796118498a ('netdev: change transmit to limited range type') changed the required return type and 9a1654ba0b50402a6bd03c7b0fe9b0200a5ea7b1 ('net: Optimize hard_start_xmit() return checking') changed the valid numerical return values. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller diff --git a/Documentation/networking/driver.txt b/Documentation/networking/driver.txt index 2128e41..da59e28 100644 --- a/Documentation/networking/driver.txt +++ b/Documentation/networking/driver.txt @@ -2,16 +2,16 @@ Document about softnet driver issues Transmit path guidelines: -1) The ndo_start_xmit method must never return '1' under any - normal circumstances. It is considered a hard error unless +1) The ndo_start_xmit method must not return NETDEV_TX_BUSY under + any normal circumstances. It is considered a hard error unless there is no way your device can tell ahead of time when it's transmit function will become busy. Instead it must maintain the queue properly. For example, for a driver implementing scatter-gather this means: - static int drv_hard_start_xmit(struct sk_buff *skb, - struct net_device *dev) + static netdev_tx_t drv_hard_start_xmit(struct sk_buff *skb, + struct net_device *dev) { struct drv *dp = netdev_priv(dev); @@ -23,7 +23,7 @@ Transmit path guidelines: unlock_tx(dp); printk(KERN_ERR PFX "%s: BUG! Tx Ring full when queue awake!\n", dev->name); - return 1; + return NETDEV_TX_BUSY; } ... queue packet to card ... @@ -35,6 +35,7 @@ Transmit path guidelines: ... unlock_tx(dp); ... + return NETDEV_TX_OK; } And then at the end of your TX reclamation event handling: @@ -61,9 +62,9 @@ Transmit path guidelines: 2) An ndo_start_xmit method must not modify the shared parts of a cloned SKB. -3) Do not forget that once you return 0 from your ndo_start_xmit - method, it is your driver's responsibility to free up the SKB - and in some finite amount of time. +3) Do not forget that once you return NETDEV_TX_OK from your + ndo_start_xmit method, it is your driver's responsibility to free + up the SKB and in some finite amount of time. For example, this means that it is not allowed for your TX mitigation scheme to let TX packets "hang out" in the TX @@ -71,8 +72,9 @@ Transmit path guidelines: This error can deadlock sockets waiting for send buffer room to be freed up. - If you return 1 from the ndo_start_xmit method, you must not keep - any reference to that SKB and you must not attempt to free it up. + If you return NETDEV_TX_BUSY from the ndo_start_xmit method, you + must not keep any reference to that SKB and you must not attempt + to free it up. Probing guidelines: -- cgit v0.10.2 From 4a7e7c2ad540e54c75489a70137bf0ec15d3a127 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 5 Apr 2012 22:17:46 +0000 Subject: netlink: fix races after skb queueing As soon as an skb is queued into socket receive_queue, another thread can consume it, so we are not allowed to reference skb anymore, or risk use after free. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 32bb753..faa48f7 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -829,12 +829,19 @@ int netlink_attachskb(struct sock *sk, struct sk_buff *skb, return 0; } -int netlink_sendskb(struct sock *sk, struct sk_buff *skb) +static int __netlink_sendskb(struct sock *sk, struct sk_buff *skb) { int len = skb->len; skb_queue_tail(&sk->sk_receive_queue, skb); sk->sk_data_ready(sk, len); + return len; +} + +int netlink_sendskb(struct sock *sk, struct sk_buff *skb) +{ + int len = __netlink_sendskb(sk, skb); + sock_put(sk); return len; } @@ -957,8 +964,7 @@ static int netlink_broadcast_deliver(struct sock *sk, struct sk_buff *skb) if (atomic_read(&sk->sk_rmem_alloc) <= sk->sk_rcvbuf && !test_bit(0, &nlk->state)) { skb_set_owner_r(skb, sk); - skb_queue_tail(&sk->sk_receive_queue, skb); - sk->sk_data_ready(sk, skb->len); + __netlink_sendskb(sk, skb); return atomic_read(&sk->sk_rmem_alloc) > (sk->sk_rcvbuf >> 1); } return -1; @@ -1698,10 +1704,8 @@ static int netlink_dump(struct sock *sk) if (sk_filter(sk, skb)) kfree_skb(skb); - else { - skb_queue_tail(&sk->sk_receive_queue, skb); - sk->sk_data_ready(sk, skb->len); - } + else + __netlink_sendskb(sk, skb); return 0; } @@ -1715,10 +1719,8 @@ static int netlink_dump(struct sock *sk) if (sk_filter(sk, skb)) kfree_skb(skb); - else { - skb_queue_tail(&sk->sk_receive_queue, skb); - sk->sk_data_ready(sk, skb->len); - } + else + __netlink_sendskb(sk, skb); if (cb->done) cb->done(cb); -- cgit v0.10.2 From 110c43304db6f06490961529536c362d9ac5732f Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 6 Apr 2012 10:49:10 +0200 Subject: net: fix a race in sock_queue_err_skb() As soon as an skb is queued into socket error queue, another thread can consume it, so we are not allowed to reference skb anymore, or risk use after free. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/core/skbuff.c b/net/core/skbuff.c index f223cdc..baf8d28 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -3161,6 +3161,8 @@ static void sock_rmem_free(struct sk_buff *skb) */ int sock_queue_err_skb(struct sock *sk, struct sk_buff *skb) { + int len = skb->len; + if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >= (unsigned)sk->sk_rcvbuf) return -ENOMEM; @@ -3175,7 +3177,7 @@ int sock_queue_err_skb(struct sock *sk, struct sk_buff *skb) skb_queue_tail(&sk->sk_error_queue, skb); if (!sock_flag(sk, SOCK_DEAD)) - sk->sk_data_ready(sk, skb->len); + sk->sk_data_ready(sk, len); return 0; } EXPORT_SYMBOL(sock_queue_err_skb); -- cgit v0.10.2 From 0135bbcc7a0cc056f0203ff839466236b8e3dc19 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Wed, 4 Apr 2012 15:48:30 -0600 Subject: regmap: introduce explicit bus_context for bus callbacks The only context needed by I2C and SPI bus definitions is the device itself; this can be converted to an i2c_client or spi_device in order to perform IO on the device. However, other bus types may need more context in order to perform IO. Enable this by having regmap_init accept a bus_context parameter, and pass this to all bus callbacks. The existing callbacks simply pass the struct device here. Future bus types may pass something else. Signed-off-by: Stephen Warren Signed-off-by: Mark Brown diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h index fcafc5b..b95fd1f 100644 --- a/drivers/base/regmap/internal.h +++ b/drivers/base/regmap/internal.h @@ -38,6 +38,7 @@ struct regmap { void *work_buf; /* Scratch buffer used to format I/O */ struct regmap_format format; /* Buffer format */ const struct regmap_bus *bus; + void *bus_context; #ifdef CONFIG_DEBUG_FS struct dentry *debugfs; diff --git a/drivers/base/regmap/regmap-i2c.c b/drivers/base/regmap/regmap-i2c.c index 9a3a8c5..5f6b247 100644 --- a/drivers/base/regmap/regmap-i2c.c +++ b/drivers/base/regmap/regmap-i2c.c @@ -15,8 +15,9 @@ #include #include -static int regmap_i2c_write(struct device *dev, const void *data, size_t count) +static int regmap_i2c_write(void *context, const void *data, size_t count) { + struct device *dev = context; struct i2c_client *i2c = to_i2c_client(dev); int ret; @@ -29,10 +30,11 @@ static int regmap_i2c_write(struct device *dev, const void *data, size_t count) return -EIO; } -static int regmap_i2c_gather_write(struct device *dev, +static int regmap_i2c_gather_write(void *context, const void *reg, size_t reg_size, const void *val, size_t val_size) { + struct device *dev = context; struct i2c_client *i2c = to_i2c_client(dev); struct i2c_msg xfer[2]; int ret; @@ -62,10 +64,11 @@ static int regmap_i2c_gather_write(struct device *dev, return -EIO; } -static int regmap_i2c_read(struct device *dev, +static int regmap_i2c_read(void *context, const void *reg, size_t reg_size, void *val, size_t val_size) { + struct device *dev = context; struct i2c_client *i2c = to_i2c_client(dev); struct i2c_msg xfer[2]; int ret; @@ -107,7 +110,7 @@ static struct regmap_bus regmap_i2c = { struct regmap *regmap_init_i2c(struct i2c_client *i2c, const struct regmap_config *config) { - return regmap_init(&i2c->dev, ®map_i2c, config); + return regmap_init(&i2c->dev, ®map_i2c, &i2c->dev, config); } EXPORT_SYMBOL_GPL(regmap_init_i2c); @@ -124,7 +127,7 @@ EXPORT_SYMBOL_GPL(regmap_init_i2c); struct regmap *devm_regmap_init_i2c(struct i2c_client *i2c, const struct regmap_config *config) { - return devm_regmap_init(&i2c->dev, ®map_i2c, config); + return devm_regmap_init(&i2c->dev, ®map_i2c, &i2c->dev, config); } EXPORT_SYMBOL_GPL(devm_regmap_init_i2c); diff --git a/drivers/base/regmap/regmap-spi.c b/drivers/base/regmap/regmap-spi.c index 7c0c35a..ffa46a9 100644 --- a/drivers/base/regmap/regmap-spi.c +++ b/drivers/base/regmap/regmap-spi.c @@ -15,17 +15,19 @@ #include #include -static int regmap_spi_write(struct device *dev, const void *data, size_t count) +static int regmap_spi_write(void *context, const void *data, size_t count) { + struct device *dev = context; struct spi_device *spi = to_spi_device(dev); return spi_write(spi, data, count); } -static int regmap_spi_gather_write(struct device *dev, +static int regmap_spi_gather_write(void *context, const void *reg, size_t reg_len, const void *val, size_t val_len) { + struct device *dev = context; struct spi_device *spi = to_spi_device(dev); struct spi_message m; struct spi_transfer t[2] = { { .tx_buf = reg, .len = reg_len, }, @@ -38,10 +40,11 @@ static int regmap_spi_gather_write(struct device *dev, return spi_sync(spi, &m); } -static int regmap_spi_read(struct device *dev, +static int regmap_spi_read(void *context, const void *reg, size_t reg_size, void *val, size_t val_size) { + struct device *dev = context; struct spi_device *spi = to_spi_device(dev); return spi_write_then_read(spi, reg, reg_size, val, val_size); @@ -66,7 +69,7 @@ static struct regmap_bus regmap_spi = { struct regmap *regmap_init_spi(struct spi_device *spi, const struct regmap_config *config) { - return regmap_init(&spi->dev, ®map_spi, config); + return regmap_init(&spi->dev, ®map_spi, &spi->dev, config); } EXPORT_SYMBOL_GPL(regmap_init_spi); @@ -83,7 +86,7 @@ EXPORT_SYMBOL_GPL(regmap_init_spi); struct regmap *devm_regmap_init_spi(struct spi_device *spi, const struct regmap_config *config) { - return devm_regmap_init(&spi->dev, ®map_spi, config); + return devm_regmap_init(&spi->dev, ®map_spi, &spi->dev, config); } EXPORT_SYMBOL_GPL(devm_regmap_init_spi); diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 7a3f535..bde30c5 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -163,6 +163,7 @@ static unsigned int regmap_parse_32(void *buf) * * @dev: Device that will be interacted with * @bus: Bus-specific callbacks to use with device + * @bus_context: Data passed to bus-specific callbacks * @config: Configuration for register map * * The return value will be an ERR_PTR() on error or a valid pointer to @@ -171,6 +172,7 @@ static unsigned int regmap_parse_32(void *buf) */ struct regmap *regmap_init(struct device *dev, const struct regmap_bus *bus, + void *bus_context, const struct regmap_config *config) { struct regmap *map; @@ -193,6 +195,7 @@ struct regmap *regmap_init(struct device *dev, map->format.buf_size += map->format.pad_bytes; map->dev = dev; map->bus = bus; + map->bus_context = bus_context; map->max_register = config->max_register; map->writeable_reg = config->writeable_reg; map->readable_reg = config->readable_reg; @@ -316,6 +319,7 @@ static void devm_regmap_release(struct device *dev, void *res) * * @dev: Device that will be interacted with * @bus: Bus-specific callbacks to use with device + * @bus_context: Data passed to bus-specific callbacks * @config: Configuration for register map * * The return value will be an ERR_PTR() on error or a valid pointer @@ -325,6 +329,7 @@ static void devm_regmap_release(struct device *dev, void *res) */ struct regmap *devm_regmap_init(struct device *dev, const struct regmap_bus *bus, + void *bus_context, const struct regmap_config *config) { struct regmap **ptr, *regmap; @@ -333,7 +338,7 @@ struct regmap *devm_regmap_init(struct device *dev, if (!ptr) return ERR_PTR(-ENOMEM); - regmap = regmap_init(dev, bus, config); + regmap = regmap_init(dev, bus, bus_context, config); if (!IS_ERR(regmap)) { *ptr = regmap; devres_add(dev, ptr); @@ -391,6 +396,8 @@ void regmap_exit(struct regmap *map) { regcache_exit(map); regmap_debugfs_exit(map); + if (map->bus->free_context) + map->bus->free_context(map->bus_context); kfree(map->work_buf); kfree(map); } @@ -444,12 +451,12 @@ static int _regmap_raw_write(struct regmap *map, unsigned int reg, */ if (val == (map->work_buf + map->format.pad_bytes + map->format.reg_bytes)) - ret = map->bus->write(map->dev, map->work_buf, + ret = map->bus->write(map->bus_context, map->work_buf, map->format.reg_bytes + map->format.pad_bytes + val_len); else if (map->bus->gather_write) - ret = map->bus->gather_write(map->dev, map->work_buf, + ret = map->bus->gather_write(map->bus_context, map->work_buf, map->format.reg_bytes + map->format.pad_bytes, val, val_len); @@ -464,7 +471,7 @@ static int _regmap_raw_write(struct regmap *map, unsigned int reg, memcpy(buf, map->work_buf, map->format.reg_bytes); memcpy(buf + map->format.reg_bytes + map->format.pad_bytes, val, val_len); - ret = map->bus->write(map->dev, buf, len); + ret = map->bus->write(map->bus_context, buf, len); kfree(buf); } @@ -498,7 +505,7 @@ int _regmap_write(struct regmap *map, unsigned int reg, trace_regmap_hw_write_start(map->dev, reg, 1); - ret = map->bus->write(map->dev, map->work_buf, + ret = map->bus->write(map->bus_context, map->work_buf, map->format.buf_size); trace_regmap_hw_write_done(map->dev, reg, 1); @@ -639,7 +646,7 @@ static int _regmap_raw_read(struct regmap *map, unsigned int reg, void *val, trace_regmap_hw_read_start(map->dev, reg, val_len / map->format.val_bytes); - ret = map->bus->read(map->dev, map->work_buf, + ret = map->bus->read(map->bus_context, map->work_buf, map->format.reg_bytes + map->format.pad_bytes, val, val_len); diff --git a/include/linux/regmap.h b/include/linux/regmap.h index a90abb6..8fd341e 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -97,14 +97,15 @@ struct regmap_config { u8 write_flag_mask; }; -typedef int (*regmap_hw_write)(struct device *dev, const void *data, +typedef int (*regmap_hw_write)(void *context, const void *data, size_t count); -typedef int (*regmap_hw_gather_write)(struct device *dev, +typedef int (*regmap_hw_gather_write)(void *context, const void *reg, size_t reg_len, const void *val, size_t val_len); -typedef int (*regmap_hw_read)(struct device *dev, +typedef int (*regmap_hw_read)(void *context, const void *reg_buf, size_t reg_size, void *val_buf, size_t val_size); +typedef void (*regmap_hw_free_context)(void *context); /** * Description of a hardware bus for the register map infrastructure. @@ -121,11 +122,13 @@ struct regmap_bus { regmap_hw_write write; regmap_hw_gather_write gather_write; regmap_hw_read read; + regmap_hw_free_context free_context; u8 read_flag_mask; }; struct regmap *regmap_init(struct device *dev, const struct regmap_bus *bus, + void *bus_context, const struct regmap_config *config); struct regmap *regmap_init_i2c(struct i2c_client *i2c, const struct regmap_config *config); @@ -134,6 +137,7 @@ struct regmap *regmap_init_spi(struct spi_device *dev, struct regmap *devm_regmap_init(struct device *dev, const struct regmap_bus *bus, + void *bus_context, const struct regmap_config *config); struct regmap *devm_regmap_init_i2c(struct i2c_client *i2c, const struct regmap_config *config); -- cgit v0.10.2 From bacdbe077342ecc9e7b3e374cc5a41995116706a Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Wed, 4 Apr 2012 15:48:28 -0600 Subject: regmap: introduce fast_io busses, and use a spinlock for them Some bus types have very fast IO. For these, acquiring a mutex for every IO operation is a significant overhead. Allow busses to indicate their IO is fast, and enhance regmap to use a spinlock for those busses. [Currently limited to native endian registers -- broonie] Signed-off-by: Stephen Warren Signed-off-by: Mark Brown diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h index b95fd1f..e46c279 100644 --- a/drivers/base/regmap/internal.h +++ b/drivers/base/regmap/internal.h @@ -31,8 +31,14 @@ struct regmap_format { unsigned int (*parse_val)(void *buf); }; +typedef void (*regmap_lock)(struct regmap *map); +typedef void (*regmap_unlock)(struct regmap *map); + struct regmap { - struct mutex lock; + struct mutex mutex; + spinlock_t spinlock; + regmap_lock lock; + regmap_unlock unlock; struct device *dev; /* Device we do I/O on */ void *work_buf; /* Scratch buffer used to format I/O */ diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c index 5157fa0..cca4600 100644 --- a/drivers/base/regmap/regcache-rbtree.c +++ b/drivers/base/regmap/regcache-rbtree.c @@ -139,7 +139,7 @@ static int rbtree_show(struct seq_file *s, void *ignored) int nodes = 0; int registers = 0; - mutex_lock(&map->lock); + map->lock(map); for (node = rb_first(&rbtree_ctx->root); node != NULL; node = rb_next(node)) { @@ -155,7 +155,7 @@ static int rbtree_show(struct seq_file *s, void *ignored) seq_printf(s, "%d nodes, %d registers, average %d registers\n", nodes, registers, registers / nodes); - mutex_unlock(&map->lock); + map->unlock(map); return 0; } diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c index 87f54db..4ad1850 100644 --- a/drivers/base/regmap/regcache.c +++ b/drivers/base/regmap/regcache.c @@ -264,7 +264,7 @@ int regcache_sync(struct regmap *map) BUG_ON(!map->cache_ops || !map->cache_ops->sync); - mutex_lock(&map->lock); + map->lock(map); /* Remember the initial bypass state */ bypass = map->cache_bypass; dev_dbg(map->dev, "Syncing %s cache\n", @@ -296,7 +296,7 @@ out: trace_regcache_sync(map->dev, name, "stop"); /* Restore the bypass state */ map->cache_bypass = bypass; - mutex_unlock(&map->lock); + map->unlock(map); return ret; } @@ -323,7 +323,7 @@ int regcache_sync_region(struct regmap *map, unsigned int min, BUG_ON(!map->cache_ops || !map->cache_ops->sync); - mutex_lock(&map->lock); + map->lock(map); /* Remember the initial bypass state */ bypass = map->cache_bypass; @@ -342,7 +342,7 @@ out: trace_regcache_sync(map->dev, name, "stop region"); /* Restore the bypass state */ map->cache_bypass = bypass; - mutex_unlock(&map->lock); + map->unlock(map); return ret; } @@ -361,11 +361,11 @@ out: */ void regcache_cache_only(struct regmap *map, bool enable) { - mutex_lock(&map->lock); + map->lock(map); WARN_ON(map->cache_bypass && enable); map->cache_only = enable; trace_regmap_cache_only(map->dev, enable); - mutex_unlock(&map->lock); + map->unlock(map); } EXPORT_SYMBOL_GPL(regcache_cache_only); @@ -380,9 +380,9 @@ EXPORT_SYMBOL_GPL(regcache_cache_only); */ void regcache_mark_dirty(struct regmap *map) { - mutex_lock(&map->lock); + map->lock(map); map->cache_dirty = true; - mutex_unlock(&map->lock); + map->unlock(map); } EXPORT_SYMBOL_GPL(regcache_mark_dirty); @@ -399,11 +399,11 @@ EXPORT_SYMBOL_GPL(regcache_mark_dirty); */ void regcache_cache_bypass(struct regmap *map, bool enable) { - mutex_lock(&map->lock); + map->lock(map); WARN_ON(map->cache_only && enable); map->cache_bypass = enable; trace_regmap_cache_bypass(map->dev, enable); - mutex_unlock(&map->lock); + map->unlock(map); } EXPORT_SYMBOL_GPL(regcache_cache_bypass); diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index bde30c5..6b4a775 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -158,6 +158,26 @@ static unsigned int regmap_parse_32(void *buf) return b[0]; } +static void regmap_lock_mutex(struct regmap *map) +{ + mutex_lock(&map->mutex); +} + +static void regmap_unlock_mutex(struct regmap *map) +{ + mutex_unlock(&map->mutex); +} + +static void regmap_lock_spinlock(struct regmap *map) +{ + spin_lock(&map->spinlock); +} + +static void regmap_unlock_spinlock(struct regmap *map) +{ + spin_unlock(&map->spinlock); +} + /** * regmap_init(): Initialise register map * @@ -187,7 +207,15 @@ struct regmap *regmap_init(struct device *dev, goto err; } - mutex_init(&map->lock); + if (bus->fast_io) { + spin_lock_init(&map->spinlock); + map->lock = regmap_lock_spinlock; + map->unlock = regmap_unlock_spinlock; + } else { + mutex_init(&map->mutex); + map->lock = regmap_lock_mutex; + map->unlock = regmap_unlock_mutex; + } map->format.buf_size = (config->reg_bits + config->val_bits) / 8; map->format.reg_bytes = DIV_ROUND_UP(config->reg_bits, 8); map->format.pad_bytes = config->pad_bits / 8; @@ -365,7 +393,7 @@ int regmap_reinit_cache(struct regmap *map, const struct regmap_config *config) { int ret; - mutex_lock(&map->lock); + map->lock(map); regcache_exit(map); regmap_debugfs_exit(map); @@ -384,7 +412,7 @@ int regmap_reinit_cache(struct regmap *map, const struct regmap_config *config) ret = regcache_init(map, config); - mutex_unlock(&map->lock); + map->unlock(map); return ret; } @@ -536,11 +564,11 @@ int regmap_write(struct regmap *map, unsigned int reg, unsigned int val) { int ret; - mutex_lock(&map->lock); + map->lock(map); ret = _regmap_write(map, reg, val); - mutex_unlock(&map->lock); + map->unlock(map); return ret; } @@ -567,11 +595,11 @@ int regmap_raw_write(struct regmap *map, unsigned int reg, { int ret; - mutex_lock(&map->lock); + map->lock(map); ret = _regmap_raw_write(map, reg, val, val_len); - mutex_unlock(&map->lock); + map->unlock(map); return ret; } @@ -601,7 +629,7 @@ int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val, if (!map->format.parse_val) return -EINVAL; - mutex_lock(&map->lock); + map->lock(map); /* No formatting is require if val_byte is 1 */ if (val_bytes == 1) { @@ -622,7 +650,7 @@ int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val, kfree(wval); out: - mutex_unlock(&map->lock); + map->unlock(map); return ret; } EXPORT_SYMBOL_GPL(regmap_bulk_write); @@ -696,11 +724,11 @@ int regmap_read(struct regmap *map, unsigned int reg, unsigned int *val) { int ret; - mutex_lock(&map->lock); + map->lock(map); ret = _regmap_read(map, reg, val); - mutex_unlock(&map->lock); + map->unlock(map); return ret; } @@ -725,7 +753,7 @@ int regmap_raw_read(struct regmap *map, unsigned int reg, void *val, unsigned int v; int ret, i; - mutex_lock(&map->lock); + map->lock(map); if (regmap_volatile_range(map, reg, val_count) || map->cache_bypass || map->cache_type == REGCACHE_NONE) { @@ -746,7 +774,7 @@ int regmap_raw_read(struct regmap *map, unsigned int reg, void *val, } out: - mutex_unlock(&map->lock); + map->unlock(map); return ret; } @@ -799,7 +827,7 @@ static int _regmap_update_bits(struct regmap *map, unsigned int reg, int ret; unsigned int tmp, orig; - mutex_lock(&map->lock); + map->lock(map); ret = _regmap_read(map, reg, &orig); if (ret != 0) @@ -816,7 +844,7 @@ static int _regmap_update_bits(struct regmap *map, unsigned int reg, } out: - mutex_unlock(&map->lock); + map->unlock(map); return ret; } @@ -883,7 +911,7 @@ int regmap_register_patch(struct regmap *map, const struct reg_default *regs, if (map->patch) return -EBUSY; - mutex_lock(&map->lock); + map->lock(map); bypass = map->cache_bypass; @@ -911,7 +939,7 @@ int regmap_register_patch(struct regmap *map, const struct reg_default *regs, out: map->cache_bypass = bypass; - mutex_unlock(&map->lock); + map->unlock(map); return ret; } diff --git a/include/linux/regmap.h b/include/linux/regmap.h index 8fd341e..f14588a 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -110,6 +110,8 @@ typedef void (*regmap_hw_free_context)(void *context); /** * Description of a hardware bus for the register map infrastructure. * + * @fast_io: Register IO is fast. Use a spinlock instead of a mutex + * to perform locking. * @write: Write operation. * @gather_write: Write operation with split register/value, return -ENOTSUPP * if not implemented on a given device. @@ -119,6 +121,7 @@ typedef void (*regmap_hw_free_context)(void *context); * a read. */ struct regmap_bus { + bool fast_io; regmap_hw_write write; regmap_hw_gather_write gather_write; regmap_hw_read read; -- cgit v0.10.2 From 45f5ff8107a845854b1d1812ab1d9c5541f08b4d Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Wed, 4 Apr 2012 15:48:31 -0600 Subject: regmap: add MMIO bus support This is a basic memory-mapped-IO bus for regmap. It has the following features and limitations: * Registers themselves may be 8, 16, 32, or 64-bit. 64-bit is only supported on 64-bit platforms. * Register offsets are limited to precisely 32-bit. * IO is performed using readl/writel, with no provision for using the __raw_readl or readl_relaxed variants. Signed-off-by: Stephen Warren Signed-off-by: Mark Brown diff --git a/drivers/base/regmap/Kconfig b/drivers/base/regmap/Kconfig index 0f6c7fb..9ef0a53 100644 --- a/drivers/base/regmap/Kconfig +++ b/drivers/base/regmap/Kconfig @@ -14,5 +14,8 @@ config REGMAP_I2C config REGMAP_SPI tristate +config REGMAP_MMIO + tristate + config REGMAP_IRQ bool diff --git a/drivers/base/regmap/Makefile b/drivers/base/regmap/Makefile index defd579..5e75d1b 100644 --- a/drivers/base/regmap/Makefile +++ b/drivers/base/regmap/Makefile @@ -3,4 +3,5 @@ obj-$(CONFIG_REGMAP) += regcache-rbtree.o regcache-lzo.o obj-$(CONFIG_DEBUG_FS) += regmap-debugfs.o obj-$(CONFIG_REGMAP_I2C) += regmap-i2c.o obj-$(CONFIG_REGMAP_SPI) += regmap-spi.o +obj-$(CONFIG_REGMAP_MMIO) += regmap-mmio.o obj-$(CONFIG_REGMAP_IRQ) += regmap-irq.o diff --git a/drivers/base/regmap/regmap-mmio.c b/drivers/base/regmap/regmap-mmio.c new file mode 100644 index 0000000..1a7b5ee --- /dev/null +++ b/drivers/base/regmap/regmap-mmio.c @@ -0,0 +1,217 @@ +/* + * Register map access API - MMIO support + * + * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include + +struct regmap_mmio_context { + void __iomem *regs; + unsigned val_bytes; +}; + +static int regmap_mmio_gather_write(void *context, + const void *reg, size_t reg_size, + const void *val, size_t val_size) +{ + struct regmap_mmio_context *ctx = context; + u32 offset; + + if (reg_size != 4) + return -EIO; + if (val_size % ctx->val_bytes) + return -EIO; + + offset = be32_to_cpup(reg); + + while (val_size) { + switch (ctx->val_bytes) { + case 1: + writeb(*(u8 *)val, ctx->regs + offset); + break; + case 2: + writew(be16_to_cpup(val), ctx->regs + offset); + break; + case 4: + writel(be32_to_cpup(val), ctx->regs + offset); + break; +#ifdef CONFIG_64BIT + case 8: + writeq(be64_to_cpup(val), ctx->regs + offset); + break; +#endif + default: + /* Should be caught by regmap_mmio_check_config */ + return -EIO; + } + val_size -= ctx->val_bytes; + val += ctx->val_bytes; + offset += ctx->val_bytes; + } + + return 0; +} + +static int regmap_mmio_write(void *context, const void *data, size_t count) +{ + if (count < 4) + return -EIO; + return regmap_mmio_gather_write(context, data, 4, data + 4, count - 4); +} + +static int regmap_mmio_read(void *context, + const void *reg, size_t reg_size, + void *val, size_t val_size) +{ + struct regmap_mmio_context *ctx = context; + u32 offset; + + if (reg_size != 4) + return -EIO; + if (val_size % ctx->val_bytes) + return -EIO; + + offset = be32_to_cpup(reg); + + while (val_size) { + switch (ctx->val_bytes) { + case 1: + *(u8 *)val = readb(ctx->regs + offset); + break; + case 2: + *(u16 *)val = cpu_to_be16(readw(ctx->regs + offset)); + break; + case 4: + *(u32 *)val = cpu_to_be32(readl(ctx->regs + offset)); + break; +#ifdef CONFIG_64BIT + case 8: + *(u64 *)val = cpu_to_be32(readq(ctx->regs + offset)); + break; +#endif + default: + /* Should be caught by regmap_mmio_check_config */ + return -EIO; + } + val_size -= ctx->val_bytes; + val += ctx->val_bytes; + offset += ctx->val_bytes; + } + + return 0; +} + +static void regmap_mmio_free_context(void *context) +{ + kfree(context); +} + +static struct regmap_bus regmap_mmio = { + .fast_io = true, + .write = regmap_mmio_write, + .gather_write = regmap_mmio_gather_write, + .read = regmap_mmio_read, + .free_context = regmap_mmio_free_context, +}; + +struct regmap_mmio_context *regmap_mmio_gen_context(void __iomem *regs, + const struct regmap_config *config) +{ + struct regmap_mmio_context *ctx; + + if (config->reg_bits != 32) + return ERR_PTR(-EINVAL); + + if (config->pad_bits) + return ERR_PTR(-EINVAL); + + switch (config->val_bits) { + case 8: + case 16: + case 32: +#ifdef CONFIG_64BIT + case 64: +#endif + break; + default: + return ERR_PTR(-EINVAL); + } + + ctx = kzalloc(GFP_KERNEL, sizeof(*ctx)); + if (!ctx) + return ERR_PTR(-ENOMEM); + + ctx->regs = regs; + ctx->val_bytes = config->val_bits / 8; + + return ctx; +} + +/** + * regmap_init_mmio(): Initialise register map + * + * @dev: Device that will be interacted with + * @regs: Pointer to memory-mapped IO region + * @config: Configuration for register map + * + * The return value will be an ERR_PTR() on error or a valid pointer to + * a struct regmap. + */ +struct regmap *regmap_init_mmio(struct device *dev, + void __iomem *regs, + const struct regmap_config *config) +{ + struct regmap_mmio_context *ctx; + + ctx = regmap_mmio_gen_context(regs, config); + if (IS_ERR(ctx)) + return ERR_CAST(ctx); + + return regmap_init(dev, ®map_mmio, ctx, config); +} +EXPORT_SYMBOL_GPL(regmap_init_mmio); + +/** + * devm_regmap_init_mmio(): Initialise managed register map + * + * @dev: Device that will be interacted with + * @regs: Pointer to memory-mapped IO region + * @config: Configuration for register map + * + * The return value will be an ERR_PTR() on error or a valid pointer + * to a struct regmap. The regmap will be automatically freed by the + * device management code. + */ +struct regmap *devm_regmap_init_mmio(struct device *dev, + void __iomem *regs, + const struct regmap_config *config) +{ + struct regmap_mmio_context *ctx; + + ctx = regmap_mmio_gen_context(regs, config); + if (IS_ERR(ctx)) + return ERR_CAST(ctx); + + return devm_regmap_init(dev, ®map_mmio, ctx, config); +} +EXPORT_SYMBOL_GPL(devm_regmap_init_mmio); + +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/regmap.h b/include/linux/regmap.h index f14588a..f6abc8d 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -137,6 +137,9 @@ struct regmap *regmap_init_i2c(struct i2c_client *i2c, const struct regmap_config *config); struct regmap *regmap_init_spi(struct spi_device *dev, const struct regmap_config *config); +struct regmap *regmap_init_mmio(struct device *dev, + void __iomem *regs, + const struct regmap_config *config); struct regmap *devm_regmap_init(struct device *dev, const struct regmap_bus *bus, @@ -146,6 +149,9 @@ struct regmap *devm_regmap_init_i2c(struct i2c_client *i2c, const struct regmap_config *config); struct regmap *devm_regmap_init_spi(struct spi_device *dev, const struct regmap_config *config); +struct regmap *devm_regmap_init_mmio(struct device *dev, + void __iomem *regs, + const struct regmap_config *config); void regmap_exit(struct regmap *map); int regmap_reinit_cache(struct regmap *map, -- cgit v0.10.2 From 46ed99d1b7c92920ce9e313152522847647aae4f Mon Sep 17 00:00:00 2001 From: Emil Goode Date: Sun, 1 Apr 2012 20:48:04 +0200 Subject: x86: vsyscall: Use NULL instead 0 for a pointer argument This patch silences the following sparse warning: arch/x86/kernel/vsyscall_64.c:250:34: warning: Using plain integer as NULL pointer Signed-off-by: Emil Goode Acked-by: Andy Lutomirski Cc: john.stultz@linaro.org Link: http://lkml.kernel.org/r/1333306084-3776-1-git-send-email-emilgoode@gmail.com Signed-off-by: Thomas Gleixner diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c index f386dc4..7515cf0 100644 --- a/arch/x86/kernel/vsyscall_64.c +++ b/arch/x86/kernel/vsyscall_64.c @@ -216,9 +216,9 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address) current_thread_info()->sig_on_uaccess_error = 1; /* - * 0 is a valid user pointer (in the access_ok sense) on 32-bit and + * NULL is a valid user pointer (in the access_ok sense) on 32-bit and * 64-bit, so we don't need to special-case it here. For all the - * vsyscalls, 0 means "don't write anything" not "write it at + * vsyscalls, NULL means "don't write anything" not "write it at * address 0". */ ret = -EFAULT; @@ -247,7 +247,7 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address) ret = sys_getcpu((unsigned __user *)regs->di, (unsigned __user *)regs->si, - 0); + NULL); break; } -- cgit v0.10.2 From 6f103929f8979d2638e58d7f7fda0beefcb8ee7e Mon Sep 17 00:00:00 2001 From: Neal Cardwell Date: Tue, 27 Mar 2012 15:09:37 -0400 Subject: nohz: Fix stale jiffies update in tick_nohz_restart() Fix tick_nohz_restart() to not use a stale ktime_t "now" value when calling tick_do_update_jiffies64(now). If we reach this point in the loop it means that we crossed a tick boundary since we grabbed the "now" timestamp, so at this point "now" refers to a time in the old jiffy, so using the old value for "now" is incorrect, and is likely to give us a stale jiffies value. In particular, the first time through the loop the tick_do_update_jiffies64(now) call is always a no-op, since the caller, tick_nohz_restart_sched_tick(), will have already called tick_do_update_jiffies64(now) with that "now" value. Note that tick_nohz_stop_sched_tick() already uses the correct approach: when we notice we cross a jiffy boundary, grab a new timestamp with ktime_get(), and *then* update jiffies. Signed-off-by: Neal Cardwell Cc: Ben Segall Cc: Ingo Molnar Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1332875377-23014-1-git-send-email-ncardwell@google.com Signed-off-by: Thomas Gleixner diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 3526038..6a3a5b9 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -534,9 +534,9 @@ static void tick_nohz_restart(struct tick_sched *ts, ktime_t now) hrtimer_get_expires(&ts->sched_timer), 0)) break; } - /* Update jiffies and reread time */ - tick_do_update_jiffies64(now); + /* Reread time and update jiffies */ now = ktime_get(); + tick_do_update_jiffies64(now); } } -- cgit v0.10.2 From 8abe05c6eb358967f16bce8a02c88d57c82cfbd6 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Thu, 5 Apr 2012 23:11:16 -0600 Subject: ASoC: tegra: fix i2s compilation when !CONFIG_DEBUG_FS Commit d4a2eca "ASoC: Tegra I2S: Remove dependency on pdev->id" changed the prototype of tegra_i2s_debug_add, but didn't update the dummy inline used when !CONFIG_DEBUG_FS. Fix that. Signed-off-by: Stephen Warren Signed-off-by: Mark Brown Cc: # 3.3 diff --git a/sound/soc/tegra/tegra_i2s.c b/sound/soc/tegra/tegra_i2s.c index 2d98c92..e533499 100644 --- a/sound/soc/tegra/tegra_i2s.c +++ b/sound/soc/tegra/tegra_i2s.c @@ -116,7 +116,7 @@ static void tegra_i2s_debug_remove(struct tegra_i2s *i2s) debugfs_remove(i2s->debug); } #else -static inline void tegra_i2s_debug_add(struct tegra_i2s *i2s, int id) +static inline void tegra_i2s_debug_add(struct tegra_i2s *i2s) { } -- cgit v0.10.2 From e95ae5a4939c52ccab02a49238d5d15d492b2598 Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Tue, 27 Mar 2012 19:31:08 +0200 Subject: xen: only check xen_platform_pci_unplug if hvm commit b9136d207f08 xen: initialize platform-pci even if xen_emul_unplug=never breaks blkfront/netfront by not loading them because of xen_platform_pci_unplug=0 and it is never set for PV guest. Signed-off-by: Andrew Jones Signed-off-by: Igor Mammedov Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 4276ab0..19b6005 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -1452,7 +1452,7 @@ static int __init xlblk_init(void) if (!xen_domain()) return -ENODEV; - if (!xen_platform_pci_unplug) + if (xen_hvm_domain() && !xen_platform_pci_unplug) return -ENODEV; if (register_blkdev(XENVBD_MAJOR, DEV_NAME)) { diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c index 8cc0914..ccba19c 100644 --- a/drivers/net/xen-netfront.c +++ b/drivers/net/xen-netfront.c @@ -1957,7 +1957,7 @@ static int __init netif_init(void) if (xen_initial_domain()) return 0; - if (!xen_platform_pci_unplug) + if (xen_hvm_domain() && !xen_platform_pci_unplug) return -ENODEV; printk(KERN_INFO "Initialising Xen virtual ethernet driver.\n"); -- cgit v0.10.2 From 2531d64b6fe2724dc432b67d8dc66bd45621da0b Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Tue, 20 Mar 2012 15:04:18 -0400 Subject: xen/x86: Workaround 'x86/ioapic: Add register level checks to detect bogus io-apic entries' The above mentioned patch checks the IOAPIC and if it contains -1, then it unmaps said IOAPIC. But under Xen we get this: BUG: unable to handle kernel NULL pointer dereference at 0000000000000040 IP: [] xen_irq_init+0x1f/0xb0 PGD 0 Oops: 0002 [#1] SMP CPU 0 Modules linked in: Pid: 1, comm: swapper/0 Not tainted 3.2.10-3.fc16.x86_64 #1 Dell Inc. Inspiron 1525 /0U990C RIP: e030:[] [] xen_irq_init+0x1f/0xb0 RSP: e02b: ffff8800d42cbb70 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 00000000ffffffef RCX: 0000000000000001 RDX: 0000000000000040 RSI: 00000000ffffffef RDI: 0000000000000001 RBP: ffff8800d42cbb80 R08: ffff8800d6400000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffef R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000010 FS: 0000000000000000(0000) GS:ffff8800df5fe000(0000) knlGS:0000000000000000 CS: e033 DS: 0000 ES: 0000 CR0:000000008005003b CR2: 0000000000000040 CR3: 0000000001a05000 CR4: 0000000000002660 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process swapper/0 (pid: 1, threadinfo ffff8800d42ca000, task ffff8800d42d0000) Stack: 00000000ffffffef 0000000000000010 ffff8800d42cbbe0 ffffffff8134f157 ffffffff8100a9b2 ffffffff8182ffd1 00000000000000a0 00000000829e7384 0000000000000002 0000000000000010 00000000ffffffff 0000000000000000 Call Trace: [] xen_bind_pirq_gsi_to_irq+0x87/0x230 [] ? check_events+0x12+0x20 [] xen_register_pirq+0x82/0xe0 [] xen_register_gsi.part.2+0x4a/0xd0 [] acpi_register_gsi_xen+0x20/0x30 [] acpi_register_gsi+0xf/0x20 [] acpi_pci_irq_enable+0x12e/0x202 [] pcibios_enable_device+0x39/0x40 [] do_pci_enable_device+0x4b/0x70 [] __pci_enable_device_flags+0xa8/0xf0 [] pci_enable_device+0x13/0x20 The reason we are dying is b/c the call acpi_get_override_irq() is used, which returns the polarity and trigger for the IRQs. That function calls mp_find_ioapics to get the 'struct ioapic' structure - which along with the mp_irq[x] is used to figure out the default values and the polarity/trigger overrides. Since the mp_find_ioapics now returns -1 [b/c the IOAPIC is filled with 0xffffffff], the acpi_get_override_irq() stops trying to lookup in the mp_irq[x] the proper INT_SRV_OVR and we can't install the SCI interrupt. The proper fix for this is going in v3.5 and adds an x86_io_apic_ops struct so that platforms can override it. But for v3.4 lets carry this work-around. This patch does that by providing a slightly different variant of the fake IOAPIC entries. Signed-off-by: Konrad Rzeszutek Wilk diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index 1a309ee..91dc287 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -1859,6 +1859,7 @@ pgd_t * __init xen_setup_kernel_pagetable(pgd_t *pgd, #endif /* CONFIG_X86_64 */ static unsigned char dummy_mapping[PAGE_SIZE] __page_aligned_bss; +static unsigned char fake_ioapic_mapping[PAGE_SIZE] __page_aligned_bss; static void xen_set_fixmap(unsigned idx, phys_addr_t phys, pgprot_t prot) { @@ -1899,7 +1900,7 @@ static void xen_set_fixmap(unsigned idx, phys_addr_t phys, pgprot_t prot) * We just don't map the IO APIC - all access is via * hypercalls. Keep the address in the pte for reference. */ - pte = pfn_pte(PFN_DOWN(__pa(dummy_mapping)), PAGE_KERNEL); + pte = pfn_pte(PFN_DOWN(__pa(fake_ioapic_mapping)), PAGE_KERNEL); break; #endif @@ -2064,6 +2065,7 @@ void __init xen_init_mmu_ops(void) pv_mmu_ops = xen_mmu_ops; memset(dummy_mapping, 0xff, PAGE_SIZE); + memset(fake_ioapic_mapping, 0xfd, PAGE_SIZE); } /* Protected by xen_reservation_lock. */ -- cgit v0.10.2 From e8c9e788f493d3236809e955c9fc12625a461e09 Mon Sep 17 00:00:00 2001 From: "Srivatsa S. Bhat" Date: Thu, 22 Mar 2012 18:29:24 +0530 Subject: xen/smp: Remove unnecessary call to smp_processor_id() There is an extra and unnecessary call to smp_processor_id() in cpu_bringup(). Remove it. Signed-off-by: Srivatsa S. Bhat Signed-off-by: Konrad Rzeszutek Wilk diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c index 240def4..e845555 100644 --- a/arch/x86/xen/smp.c +++ b/arch/x86/xen/smp.c @@ -59,7 +59,7 @@ static irqreturn_t xen_reschedule_interrupt(int irq, void *dev_id) static void __cpuinit cpu_bringup(void) { - int cpu = smp_processor_id(); + int cpu; cpu_init(); touch_softlockup_watchdog(); -- cgit v0.10.2 From 0ee46eca0476faf0e93c1387b1597b861b79711f Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Mon, 2 Apr 2012 15:32:22 +0100 Subject: xen/pciback: fix XEN_PCI_OP_enable_msix result Prior to 2.6.19 and as of 2.6.31, pci_enable_msix() can return a positive value to indicate the number of vectors (less than the amount requested) that can be set up for a given device. Returning this as an operation value (secondary result) is fine, but (primary) operation results are expected to be negative (error) or zero (success) according to the protocol. With the frontend fixed to match the XenoLinux behavior, the backend can now validly return zero (success) here, passing the upper limit on the number of vectors in op->value. Signed-off-by: Jan Beulich Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/xen/xen-pciback/pciback_ops.c b/drivers/xen/xen-pciback/pciback_ops.c index 63616d7..97f5d26 100644 --- a/drivers/xen/xen-pciback/pciback_ops.c +++ b/drivers/xen/xen-pciback/pciback_ops.c @@ -234,7 +234,7 @@ int xen_pcibk_enable_msix(struct xen_pcibk_device *pdev, if (dev_data) dev_data->ack_intr = 0; - return result; + return result > 0 ? 0 : result; } static -- cgit v0.10.2 From f09d8432e39797abf39531f41ac8a46a3fbf442a Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Mon, 2 Apr 2012 15:22:39 +0100 Subject: xen/pcifront: avoid pci_frontend_enable_msix() falsely returning success The original XenoLinux code has always had things this way, and for compatibility reasons (in particular with a subsequent pciback adjustment) upstream Linux should behave the same way (allowing for two distinct error indications to be returned by the backend). Signed-off-by: Jan Beulich Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c index 7cf3d2f..c18fab2 100644 --- a/drivers/pci/xen-pcifront.c +++ b/drivers/pci/xen-pcifront.c @@ -290,6 +290,7 @@ static int pci_frontend_enable_msix(struct pci_dev *dev, } else { printk(KERN_DEBUG "enable msix get value %x\n", op.value); + err = op.value; } } else { dev_err(&dev->dev, "enable msix get err %x\n", err); -- cgit v0.10.2 From 2ca052a3710fac208eee690faefdeb8bbd4586a1 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Mon, 2 Apr 2012 16:15:33 -0700 Subject: x86: Use correct byte-sized register constraint in __xchg_op() x86-64 can access the low half of any register, but i386 can only do it with a subset of registers. 'r' causes compilation failures on i386, but 'q' expresses the constraint properly. Signed-off-by: Jeremy Fitzhardinge Link: http://lkml.kernel.org/r/4F7A3315.501@goop.org Reported-by: Leigh Scott Tested-by: Thomas Reitmayr Signed-off-by: H. Peter Anvin Cc: v3.3 diff --git a/arch/x86/include/asm/cmpxchg.h b/arch/x86/include/asm/cmpxchg.h index b3b7332..bc18d0e 100644 --- a/arch/x86/include/asm/cmpxchg.h +++ b/arch/x86/include/asm/cmpxchg.h @@ -43,7 +43,7 @@ extern void __add_wrong_size(void) switch (sizeof(*(ptr))) { \ case __X86_CASE_B: \ asm volatile (lock #op "b %b0, %1\n" \ - : "+r" (__ret), "+m" (*(ptr)) \ + : "+q" (__ret), "+m" (*(ptr)) \ : : "memory", "cc"); \ break; \ case __X86_CASE_W: \ -- cgit v0.10.2 From 8c91c5325e107ec17e40a59a47c6517387d64eb7 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Fri, 6 Apr 2012 09:30:57 -0700 Subject: x86: Use correct byte-sized register constraint in __add() Similar to: 2ca052a x86: Use correct byte-sized register constraint in __xchg_op() ... the __add() macro also needs to use a "q" constraint in the byte-sized case, lest we try to generate an illegal register. Link: http://lkml.kernel.org/r/4F7A3315.501@goop.org Signed-off-by: H. Peter Anvin Cc: Jeremy Fitzhardinge Cc: Leigh Scott Cc: Thomas Reitmayr Cc: v3.3 diff --git a/arch/x86/include/asm/cmpxchg.h b/arch/x86/include/asm/cmpxchg.h index bc18d0e..99480e5 100644 --- a/arch/x86/include/asm/cmpxchg.h +++ b/arch/x86/include/asm/cmpxchg.h @@ -173,7 +173,7 @@ extern void __add_wrong_size(void) switch (sizeof(*(ptr))) { \ case __X86_CASE_B: \ asm volatile (lock "addb %b1, %0\n" \ - : "+m" (*(ptr)) : "ri" (inc) \ + : "+m" (*(ptr)) : "qi" (inc) \ : "memory", "cc"); \ break; \ case __X86_CASE_W: \ -- cgit v0.10.2 From 1b2e19f17ed327af6add02978efdf354e4f8e4df Mon Sep 17 00:00:00 2001 From: Shaohua Li Date: Fri, 6 Apr 2012 11:37:47 -0600 Subject: block: make auto block plug flush threshold per-disk based We do auto block plug flush to reduce latency, the threshold is 16 requests. This works well if the task is accessing one or two drives. The problem is if the task is accessing a raid 0 device and the raid disk number is big, say 8 or 16, 16/8 = 2 or 16/16=1, we will have heavy lock contention. This patch makes the threshold per-disk based. The latency should be still ok accessing one or two drives. The setup with application accessing a lot of drives in the meantime uaually is big machine, avoiding lock contention is more important, because any contention will actually increase latency. Signed-off-by: Shaohua Li Signed-off-by: Jens Axboe diff --git a/block/blk-core.c b/block/blk-core.c index 414e822..1f61b74 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -1277,7 +1277,8 @@ static bool attempt_plug_merge(struct request_queue *q, struct bio *bio, list_for_each_entry_reverse(rq, &plug->list, queuelist) { int el_ret; - (*request_count)++; + if (rq->q == q) + (*request_count)++; if (rq->q != q || !blk_rq_merge_ok(rq, bio)) continue; -- cgit v0.10.2 From ee01e663373343c63e0e3d364d09f6155378dbcc Mon Sep 17 00:00:00 2001 From: Toshi Kani Date: Sat, 31 Mar 2012 21:37:02 -0600 Subject: cpuidle: Fix panic in CPU off-lining with no idle driver Fix a NULL pointer dereference panic in cpuidle_play_dead() during CPU off-lining when no cpuidle driver is registered. A cpuidle driver may be registered at boot-time based on CPU type. This patch allows an off-lined CPU to enter HLT-based idle in this condition. Signed-off-by: Toshi Kani Cc: Boris Ostrovsky Reviewed-by: Srivatsa S. Bhat Tested-by: Srivatsa S. Bhat Signed-off-by: Len Brown diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c index 3e146b2..a71376a 100644 --- a/drivers/cpuidle/cpuidle.c +++ b/drivers/cpuidle/cpuidle.c @@ -74,7 +74,7 @@ static cpuidle_enter_t cpuidle_enter_ops; /** * cpuidle_play_dead - cpu off-lining * - * Only returns in case of an error + * Returns in case of an error or no driver */ int cpuidle_play_dead(void) { @@ -83,6 +83,9 @@ int cpuidle_play_dead(void) int i, dead_state = -1; int power_usage = -1; + if (!drv) + return -ENODEV; + /* Find lowest-power state that supports long-term idle */ for (i = CPUIDLE_DRIVER_STATE_START; i < drv->state_count; i++) { struct cpuidle_state *s = &drv->states[i]; -- cgit v0.10.2 From a8edc42a11e1d7b7e158d4026670fd83854dfcc2 Mon Sep 17 00:00:00 2001 From: David Daney Date: Thu, 22 Mar 2012 14:01:07 -0700 Subject: usb: Put USB Kconfig items back under USB. commit 53c6bc24fdc8db87109a5760579cbb060fa644cf (usb: Don't make USB_ARCH_HAS_{XHCI,OHCI,EHCI} depend on USB_SUPPORT.) Removed the dependency of the USB_ARCH_HAS_* symbols on USB_SUPPORT. However the resulting Kconfig somehow caused many of the USB configuration items to appear under the top level devices menu. To fix this we reunite the 'menuconfig USB_SUPPORT' with the 'if USB_SUPPORT', and the config items magically go back to their desired location. Reported-by: Julian Wollrath Reported-by: Nobuhiro Iwamatsu Reported-by: Borislav Petkov Reported-by: Rupesh Gujare Reported-by: Feng King Reported-by: Jean-Christophe PLAGNIOL-VILLARD Signed-off-by: David Daney Tested-by: Peter Chen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig index cbd8f5f..76316a3 100644 --- a/drivers/usb/Kconfig +++ b/drivers/usb/Kconfig @@ -2,14 +2,6 @@ # USB device configuration # -menuconfig USB_SUPPORT - bool "USB support" - depends on HAS_IOMEM - default y - ---help--- - This option adds core support for Universal Serial Bus (USB). - You will also need drivers from the following menu to make use of it. - # many non-PCI SOC chips embed OHCI config USB_ARCH_HAS_OHCI boolean @@ -63,6 +55,14 @@ config USB_ARCH_HAS_XHCI boolean default PCI +menuconfig USB_SUPPORT + bool "USB support" + depends on HAS_IOMEM + default y + ---help--- + This option adds core support for Universal Serial Bus (USB). + You will also need drivers from the following menu to make use of it. + if USB_SUPPORT config USB_COMMON -- cgit v0.10.2 From 2e8dc2f2c1f669401f4bb07ccdb92ae8e44a9f00 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Sat, 17 Mar 2012 15:23:49 +0100 Subject: usb/usbmon: correct the data interpretation of usbmon's output The doc says that the data | 55534243 5e000000 00000000 00000600 00000000 00000000 00000000 000000 is the SCSI command 0x5e. According to the usbmon source, it dumps one byte after the other. The first 4 bytes are US_BULK_CB_SIGN which is correct. After that we see the TAG which is 0x5e. The cdb is 0x00 in this example. In order to correct this, I change the example to a READ_10 command which is 0x28 so it is not just a zero somewhere in the stream. Signed-off-by: Sebastian Andrzej Siewior Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman diff --git a/Documentation/usb/usbmon.txt b/Documentation/usb/usbmon.txt index 5335fa8..c42bb9c 100644 --- a/Documentation/usb/usbmon.txt +++ b/Documentation/usb/usbmon.txt @@ -183,10 +183,10 @@ An input control transfer to get a port status. d5ea89a0 3575914555 S Ci:1:001:0 s a3 00 0000 0003 0004 4 < d5ea89a0 3575914560 C Ci:1:001:0 0 4 = 01050000 -An output bulk transfer to send a SCSI command 0x5E in a 31-byte Bulk wrapper -to a storage device at address 5: +An output bulk transfer to send a SCSI command 0x28 (READ_10) in a 31-byte +Bulk wrapper to a storage device at address 5: -dd65f0e8 4128379752 S Bo:1:005:2 -115 31 = 55534243 5e000000 00000000 00000600 00000000 00000000 00000000 000000 +dd65f0e8 4128379752 S Bo:1:005:2 -115 31 = 55534243 ad000000 00800000 80010a28 20000000 20000040 00000000 000000 dd65f0e8 4128379808 C Bo:1:005:2 0 31 > * Raw binary format and API -- cgit v0.10.2 From c825bab0cef8b90bab8b63eb5686b8c8eb22e798 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Mon, 19 Mar 2012 15:20:57 +0800 Subject: usb: storage: fix lockdep warning inside usb_stor_pre_reset(v2) This patch fixes one lockdep warning[1] inside usb_stor_pre_reset. If the current configuration includes multiple mass storage interfaces, the 'AA' lockdep warning will be triggered since the lock class of 'us->dev_mutex' is acquired two times in .reset path. It isn't a real deadlock, so just take the lockdep_set_class annotation to remove the warning. [1], lockdep warning log :[ INFO: possible recursive locking detected ] :3.3.0-0.rc5.git3.1.fc17.x86_64 #1 Tainted: G W :--------------------------------------------- :usb-storage/14846 is trying to acquire lock: : (&(us->dev_mutex)){+.+.+.}, at: [] usb_stor_pre_reset+0x1c/0x20 [usb_storage] :but task is already holding lock: : (&(us->dev_mutex)){+.+.+.}, at: [] usb_stor_pre_reset+0x1c/0x20 [usb_storage] :other info that might help us debug this: : Possible unsafe locking scenario: : CPU0 : ---- : lock(&(us->dev_mutex)); : lock(&(us->dev_mutex)); : *** DEADLOCK *** : May be due to missing lock nesting notation :2 locks held by usb-storage/14846: : #0: (&__lockdep_no_validate__){......}, at: [] usb_lock_device_for_reset+0x95/0x100 : #1: (&(us->dev_mutex)){+.+.+.}, at: [] usb_stor_pre_reset+0x1c/0x20 [usb_storage] :stack backtrace: :Pid: 14846, comm: usb-storage Tainted: G W 3.3.0-0.rc5.git3.1.fc17.x86_64 #1 :Call Trace: : [] __lock_acquire+0x168f/0x1bb0 : [] ? native_sched_clock+0x13/0x80 : [] ? sched_clock+0x9/0x10 : [] ? sched_clock+0x9/0x10 : [] ? sched_clock_local+0x25/0xa0 : [] lock_acquire+0xa1/0x1e0 : [] ? usb_stor_pre_reset+0x1c/0x20 [usb_storage] : [] mutex_lock_nested+0x76/0x3a0 : [] ? usb_stor_pre_reset+0x1c/0x20 [usb_storage] : [] ? usb_stor_pre_reset+0x1c/0x20 [usb_storage] : [] usb_stor_pre_reset+0x1c/0x20 [usb_storage] : [] usb_reset_device+0x7d/0x190 : [] usb_stor_port_reset+0x7c/0x80 [usb_storage] : [] usb_stor_invoke_transport+0x94/0x560 [usb_storage] : [] ? mark_held_locks+0xb2/0x130 : [] ? _raw_spin_unlock_irq+0x30/0x50 : [] usb_stor_transparent_scsi_command+0xe/0x10 [usb_storage] : [] usb_stor_control_thread+0x173/0x280 [usb_storage] : [] ? fill_inquiry_response+0x20/0x20 [usb_storage] : [] kthread+0xb7/0xc0 : [] kernel_thread_helper+0x4/0x10 : [] ? retint_restore_args+0x13/0x13 : [] ? kthread_worker_fn+0x1a0/0x1a0 : [] ? gs_change+0x13/0x13 Reported-By: Dave Jones Signed-off-by: Ming Lei Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c index c18538e..2653e73 100644 --- a/drivers/usb/storage/usb.c +++ b/drivers/usb/storage/usb.c @@ -132,6 +132,35 @@ static struct us_unusual_dev for_dynamic_ids = #undef COMPLIANT_DEV #undef USUAL_DEV +#ifdef CONFIG_LOCKDEP + +static struct lock_class_key us_interface_key[USB_MAXINTERFACES]; + +static void us_set_lock_class(struct mutex *mutex, + struct usb_interface *intf) +{ + struct usb_device *udev = interface_to_usbdev(intf); + struct usb_host_config *config = udev->actconfig; + int i; + + for (i = 0; i < config->desc.bNumInterfaces; i++) { + if (config->interface[i] == intf) + break; + } + + BUG_ON(i == config->desc.bNumInterfaces); + + lockdep_set_class(mutex, &us_interface_key[i]); +} + +#else + +static void us_set_lock_class(struct mutex *mutex, + struct usb_interface *intf) +{ +} + +#endif #ifdef CONFIG_PM /* Minimal support for suspend and resume */ @@ -895,6 +924,7 @@ int usb_stor_probe1(struct us_data **pus, *pus = us = host_to_us(host); memset(us, 0, sizeof(struct us_data)); mutex_init(&(us->dev_mutex)); + us_set_lock_class(&us->dev_mutex, intf); init_completion(&us->cmnd_ready); init_completion(&(us->notify)); init_waitqueue_head(&us->delay_wait); -- cgit v0.10.2 From bcf398537630bf20b4dbe59ba855b69f404c93cf Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Thu, 22 Mar 2012 11:00:21 -0400 Subject: USB: don't clear urb->dev in scatter-gather library This patch (as1517b) fixes an error in the USB scatter-gather library. The library code uses urb->dev to determine whether or nor an URB is currently active; the completion handler sets urb->dev to NULL. However the core unlinking routines need to use urb->dev. Since unlinking always racing with completion, the completion handler must not clear urb->dev -- it can lead to invalid memory accesses when a transfer has to be cancelled. This patch fixes the problem by getting rid of the lines that clear urb->dev after urb has been submitted. As a result we may end up trying to unlink an URB that failed in submission or that has already completed, so an extra check is added after each unlink to avoid printing an error message when this happens. The checks are updated in both sg_complete() and sg_cancel(), and the second is updated to match the first (currently it prints out unnecessary warning messages if a device is unplugged while a transfer is in progress). Signed-off-by: Alan Stern Reported-and-tested-by: Illia Zaitsev CC: Ming Lei CC: Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index b3bdfed..aed3e07 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -308,7 +308,8 @@ static void sg_complete(struct urb *urb) retval = usb_unlink_urb(io->urbs [i]); if (retval != -EINPROGRESS && retval != -ENODEV && - retval != -EBUSY) + retval != -EBUSY && + retval != -EIDRM) dev_err(&io->dev->dev, "%s, unlink --> %d\n", __func__, retval); @@ -317,7 +318,6 @@ static void sg_complete(struct urb *urb) } spin_lock(&io->lock); } - urb->dev = NULL; /* on the last completion, signal usb_sg_wait() */ io->bytes += urb->actual_length; @@ -524,7 +524,6 @@ void usb_sg_wait(struct usb_sg_request *io) case -ENXIO: /* hc didn't queue this one */ case -EAGAIN: case -ENOMEM: - io->urbs[i]->dev = NULL; retval = 0; yield(); break; @@ -542,7 +541,6 @@ void usb_sg_wait(struct usb_sg_request *io) /* fail any uncompleted urbs */ default: - io->urbs[i]->dev = NULL; io->urbs[i]->status = retval; dev_dbg(&io->dev->dev, "%s, submit --> %d\n", __func__, retval); @@ -593,7 +591,10 @@ void usb_sg_cancel(struct usb_sg_request *io) if (!io->urbs [i]->dev) continue; retval = usb_unlink_urb(io->urbs [i]); - if (retval != -EINPROGRESS && retval != -EBUSY) + if (retval != -EINPROGRESS + && retval != -ENODEV + && retval != -EBUSY + && retval != -EIDRM) dev_warn(&io->dev->dev, "%s, unlink --> %d\n", __func__, retval); } -- cgit v0.10.2 From da8bfb090c2b30af9f3879443355f7eb1d0fe10a Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Wed, 28 Mar 2012 16:13:28 -0400 Subject: USB documentation: explain lifetime rules for unlinking URBs This patch (as1534c) updates the documentation for usb_unlink_urb and related functions. It explains that the caller must prevent the URB being unlinked from getting deallocated while the unlink is taking place. Signed-off-by: Alan Stern CC: Ming Lei Signed-off-by: Greg Kroah-Hartman diff --git a/Documentation/usb/URB.txt b/Documentation/usb/URB.txt index 8ffce74..00d2c64 100644 --- a/Documentation/usb/URB.txt +++ b/Documentation/usb/URB.txt @@ -168,6 +168,28 @@ that if the completion handler or anyone else tries to resubmit it they will get a -EPERM error. Thus you can be sure that when usb_kill_urb() returns, the URB is totally idle. +There is a lifetime issue to consider. An URB may complete at any +time, and the completion handler may free the URB. If this happens +while usb_unlink_urb or usb_kill_urb is running, it will cause a +memory-access violation. The driver is responsible for avoiding this, +which often means some sort of lock will be needed to prevent the URB +from being deallocated while it is still in use. + +On the other hand, since usb_unlink_urb may end up calling the +completion handler, the handler must not take any lock that is held +when usb_unlink_urb is invoked. The general solution to this problem +is to increment the URB's reference count while holding the lock, then +drop the lock and call usb_unlink_urb or usb_kill_urb, and then +decrement the URB's reference count. You increment the reference +count by calling + + struct urb *usb_get_urb(struct urb *urb) + +(ignore the return value; it is the same as the argument) and +decrement the reference count by calling usb_free_urb. Of course, +none of this is necessary if there's no danger of the URB being freed +by the completion handler. + 1.7. What about the completion handler? diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c index 7239a73..cd9b3a2 100644 --- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c @@ -539,6 +539,10 @@ EXPORT_SYMBOL_GPL(usb_submit_urb); * never submitted, or it was unlinked before, or the hardware is already * finished with it), even if the completion handler has not yet run. * + * The URB must not be deallocated while this routine is running. In + * particular, when a driver calls this routine, it must insure that the + * completion handler cannot deallocate the URB. + * * Unlinking and Endpoint Queues: * * [The behaviors and guarantees described below do not apply to virtual @@ -603,6 +607,10 @@ EXPORT_SYMBOL_GPL(usb_unlink_urb); * with error -EPERM. Thus even if the URB's completion handler always * tries to resubmit, it will not succeed and the URB will become idle. * + * The URB must not be deallocated while this routine is running. In + * particular, when a driver calls this routine, it must insure that the + * completion handler cannot deallocate the URB. + * * This routine may not be used in an interrupt context (such as a bottom * half or a completion handler), or when holding a spinlock, or in other * situations where the caller can't schedule(). @@ -640,6 +648,10 @@ EXPORT_SYMBOL_GPL(usb_kill_urb); * with error -EPERM. Thus even if the URB's completion handler always * tries to resubmit, it will not succeed and the URB will become idle. * + * The URB must not be deallocated while this routine is running. In + * particular, when a driver calls this routine, it must insure that the + * completion handler cannot deallocate the URB. + * * This routine may not be used in an interrupt context (such as a bottom * half or a completion handler), or when holding a spinlock, or in other * situations where the caller can't schedule(). -- cgit v0.10.2 From a2457ee691edeffb511dbff9a69008f480192197 Mon Sep 17 00:00:00 2001 From: Michael BRIGHT Date: Thu, 22 Mar 2012 18:42:52 +0100 Subject: USB: remove compile warning on gadget/inode.c Removed unused "restart:" label, which was causing compiler warning. Signed-off-by: Michael BRIGHT Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c index 8793f32..e58b164 100644 --- a/drivers/usb/gadget/inode.c +++ b/drivers/usb/gadget/inode.c @@ -1574,7 +1574,6 @@ static void destroy_ep_files (struct dev_data *dev) DBG (dev, "%s %d\n", __func__, dev->state); /* dev->state must prevent interference */ -restart: spin_lock_irq (&dev->lock); while (!list_empty(&dev->epfiles)) { struct ep_data *ep; -- cgit v0.10.2 From f68e556e23d1a4176b563bcb25d8baf2c5313f91 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 6 Apr 2012 13:54:56 -0700 Subject: Make the "word-at-a-time" helper functions more commonly usable I have a new optimized x86 "strncpy_from_user()" that will use these same helper functions for all the same reasons the name lookup code uses them. This is preparation for that. This moves them into an architecture-specific header file. It's architecture-specific for two reasons: - some of the functions are likely to want architecture-specific implementations. Even if the current code happens to be "generic" in the sense that it should work on any little-endian machine, it's likely that the "multiply by a big constant and shift" implementation is less than optimal for an architecture that has a guaranteed fast bit count instruction, for example. - I expect that if architectures like sparc want to start playing around with this, we'll need to abstract out a few more details (in particular the actual unaligned accesses). So we're likely to have more architecture-specific stuff if non-x86 architectures start using this. (and if it turns out that non-x86 architectures don't start using this, then having it in an architecture-specific header is still the right thing to do, of course) Signed-off-by: Linus Torvalds diff --git a/arch/x86/include/asm/word-at-a-time.h b/arch/x86/include/asm/word-at-a-time.h new file mode 100644 index 0000000..6fe6767 --- /dev/null +++ b/arch/x86/include/asm/word-at-a-time.h @@ -0,0 +1,46 @@ +#ifndef _ASM_WORD_AT_A_TIME_H +#define _ASM_WORD_AT_A_TIME_H + +/* + * This is largely generic for little-endian machines, but the + * optimal byte mask counting is probably going to be something + * that is architecture-specific. If you have a reliably fast + * bit count instruction, that might be better than the multiply + * and shift, for example. + */ + +#ifdef CONFIG_64BIT + +/* + * Jan Achrenius on G+: microoptimized version of + * the simpler "(mask & ONEBYTES) * ONEBYTES >> 56" + * that works for the bytemasks without having to + * mask them first. + */ +static inline long count_masked_bytes(unsigned long mask) +{ + return mask*0x0001020304050608ul >> 56; +} + +#else /* 32-bit case */ + +/* Carl Chatfield / Jan Achrenius G+ version for 32-bit */ +static inline long count_masked_bytes(long mask) +{ + /* (000000 0000ff 00ffff ffffff) -> ( 1 1 2 3 ) */ + long a = (0x0ff0001+mask) >> 23; + /* Fix the 1 for 00 case */ + return a & mask; +} + +#endif + +#define REPEAT_BYTE(x) ((~0ul / 0xff) * (x)) + +/* Return the high bit set in the first byte that is a zero */ +static inline unsigned long has_zero(unsigned long a) +{ + return ((a - REPEAT_BYTE(0x01)) & ~a) & REPEAT_BYTE(0x80); +} + +#endif /* _ASM_WORD_AT_A_TIME_H */ diff --git a/fs/namei.c b/fs/namei.c index 1898198..0062dd1 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -1407,18 +1407,9 @@ static inline int can_lookup(struct inode *inode) */ #ifdef CONFIG_DCACHE_WORD_ACCESS -#ifdef CONFIG_64BIT +#include -/* - * Jan Achrenius on G+: microoptimized version of - * the simpler "(mask & ONEBYTES) * ONEBYTES >> 56" - * that works for the bytemasks without having to - * mask them first. - */ -static inline long count_masked_bytes(unsigned long mask) -{ - return mask*0x0001020304050608ul >> 56; -} +#ifdef CONFIG_64BIT static inline unsigned int fold_hash(unsigned long hash) { @@ -1428,15 +1419,6 @@ static inline unsigned int fold_hash(unsigned long hash) #else /* 32-bit case */ -/* Carl Chatfield / Jan Achrenius G+ version for 32-bit */ -static inline long count_masked_bytes(long mask) -{ - /* (000000 0000ff 00ffff ffffff) -> ( 1 1 2 3 ) */ - long a = (0x0ff0001+mask) >> 23; - /* Fix the 1 for 00 case */ - return a & mask; -} - #define fold_hash(x) (x) #endif @@ -1464,17 +1446,6 @@ done: } EXPORT_SYMBOL(full_name_hash); -#define REPEAT_BYTE(x) ((~0ul / 0xff) * (x)) -#define ONEBYTES REPEAT_BYTE(0x01) -#define SLASHBYTES REPEAT_BYTE('/') -#define HIGHBITS REPEAT_BYTE(0x80) - -/* Return the high bit set in the first byte that is a zero */ -static inline unsigned long has_zero(unsigned long a) -{ - return ((a - ONEBYTES) & ~a) & HIGHBITS; -} - /* * Calculate the length and hash of the path component, and * return the length of the component; @@ -1490,7 +1461,7 @@ static inline unsigned long hash_name(const char *name, unsigned int *hashp) len += sizeof(unsigned long); a = *(unsigned long *)(name+len); /* Do we have any NUL or '/' bytes in this word? */ - mask = has_zero(a) | has_zero(a ^ SLASHBYTES); + mask = has_zero(a) | has_zero(a ^ REPEAT_BYTE('/')); } while (!mask); /* The mask *below* the first high bit set */ -- cgit v0.10.2 From c3d8b76f61586714cdc5f219ba45592a54caaa55 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Wed, 21 Mar 2012 20:15:18 +0100 Subject: serial: PL011: move interrupt clearing Commit 360f748b204275229f8398cb2f9f53955db1503b "serial: PL011: clear pending interrupts" attempts to clear interrupts by writing to a yet-unassigned memory address. This fixes the issue. The breaking patch is marked for stable so should be carried along with the other patch. Cc: Shreshtha Kumar Sahu Cc: Russell King Cc: stable Cc: Nicolas Pitre Reported-by: Viresh Kumar Signed-off-by: Linus Walleij Tested-by: Grant Likely Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index 0c65c9e..3d569cd 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -1946,10 +1946,6 @@ static int pl011_probe(struct amba_device *dev, const struct amba_id *id) goto unmap; } - /* Ensure interrupts from this UART are masked and cleared */ - writew(0, uap->port.membase + UART011_IMSC); - writew(0xffff, uap->port.membase + UART011_ICR); - uap->vendor = vendor; uap->lcrh_rx = vendor->lcrh_rx; uap->lcrh_tx = vendor->lcrh_tx; @@ -1967,6 +1963,10 @@ static int pl011_probe(struct amba_device *dev, const struct amba_id *id) uap->port.line = i; pl011_dma_probe(uap); + /* Ensure interrupts from this UART are masked and cleared */ + writew(0, uap->port.membase + UART011_IMSC); + writew(0xffff, uap->port.membase + UART011_ICR); + snprintf(uap->type, sizeof(uap->type), "PL011 rev%u", amba_rev(dev)); amba_ports[i] = uap; -- cgit v0.10.2 From aaef292acf3a78d9c0bb6fb72226077d286b45d7 Mon Sep 17 00:00:00 2001 From: Igor Murzov Date: Fri, 30 Mar 2012 22:40:12 +0400 Subject: MAINTAINERS: Update git url for ACPI Signed-off-by: Igor Murzov Signed-off-by: Len Brown diff --git a/MAINTAINERS b/MAINTAINERS index eecf344..c159e2f 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -228,7 +228,7 @@ M: Len Brown L: linux-acpi@vger.kernel.org W: http://www.lesswatts.org/projects/acpi/ Q: http://patchwork.kernel.org/project/linux-acpi/list/ -T: git git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6.git +T: git git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux S: Supported F: drivers/acpi/ F: drivers/pnp/pnpacpi/ -- cgit v0.10.2 From e1c4038282c7586c3544542b37872c434669d3ac Mon Sep 17 00:00:00 2001 From: Mark Rustad Date: Tue, 3 Apr 2012 10:24:41 -0700 Subject: tcm_fc: Add abort flag for gracefully handling exchange timeout Add abort flag and use it to terminate processing when an exchange is timed out or is reset. The abort flag is used in place of the transport_generic_free_cmd function call in the reset and timeout cases, because calling that function in that context would free memory that was in use. The aborted flag allows the lifetime to be managed in a more normal way, while truncating the processing. This change eliminates a source of memory corruption which manifested in a variety of ugly ways. (nab: Drop unused struct fc_exch *ep in ft_recv_seq) Signed-off-by: Mark Rustad Acked-by: Kiran Patil Cc: Signed-off-by: Nicholas Bellinger diff --git a/drivers/target/tcm_fc/tcm_fc.h b/drivers/target/tcm_fc/tcm_fc.h index 8306579..c5eb3c3 100644 --- a/drivers/target/tcm_fc/tcm_fc.h +++ b/drivers/target/tcm_fc/tcm_fc.h @@ -122,6 +122,7 @@ struct ft_cmd { /* Local sense buffer */ unsigned char ft_sense_buffer[TRANSPORT_SENSE_BUFFER]; u32 was_ddp_setup:1; /* Set only if ddp is setup */ + u32 aborted:1; /* Set if aborted by reset or timeout */ struct scatterlist *sg; /* Set only if DDP is setup */ u32 sg_cnt; /* No. of item in scatterlist */ }; diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c index 62dec97..a375f25 100644 --- a/drivers/target/tcm_fc/tfc_cmd.c +++ b/drivers/target/tcm_fc/tfc_cmd.c @@ -121,6 +121,8 @@ int ft_queue_status(struct se_cmd *se_cmd) struct fc_exch *ep; size_t len; + if (cmd->aborted) + return 0; ft_dump_cmd(cmd, __func__); ep = fc_seq_exch(cmd->seq); lport = ep->lp; @@ -187,6 +189,8 @@ int ft_write_pending(struct se_cmd *se_cmd) ft_dump_cmd(cmd, __func__); + if (cmd->aborted) + return 0; ep = fc_seq_exch(cmd->seq); lport = ep->lp; fp = fc_frame_alloc(lport, sizeof(*txrdy)); @@ -252,10 +256,10 @@ static void ft_recv_seq(struct fc_seq *sp, struct fc_frame *fp, void *arg) struct ft_cmd *cmd = arg; struct fc_frame_header *fh; - if (IS_ERR(fp)) { + if (unlikely(IS_ERR(fp))) { /* XXX need to find cmd if queued */ cmd->seq = NULL; - transport_generic_free_cmd(&cmd->se_cmd, 0); + cmd->aborted = true; return; } @@ -399,6 +403,8 @@ int ft_queue_tm_resp(struct se_cmd *se_cmd) struct se_tmr_req *tmr = se_cmd->se_tmr_req; enum fcp_resp_rsp_codes code; + if (cmd->aborted) + return 0; switch (tmr->response) { case TMR_FUNCTION_COMPLETE: code = FCP_TMF_CMPL; diff --git a/drivers/target/tcm_fc/tfc_io.c b/drivers/target/tcm_fc/tfc_io.c index 2b693ee..dc7c0db 100644 --- a/drivers/target/tcm_fc/tfc_io.c +++ b/drivers/target/tcm_fc/tfc_io.c @@ -81,6 +81,8 @@ int ft_queue_data_in(struct se_cmd *se_cmd) void *from; void *to = NULL; + if (cmd->aborted) + return 0; ep = fc_seq_exch(cmd->seq); lport = ep->lp; cmd->seq = lport->tt.seq_start_next(cmd->seq); -- cgit v0.10.2 From 06383f10c49f507220594a455c6491ca6f8c94ab Mon Sep 17 00:00:00 2001 From: Mark Rustad Date: Tue, 3 Apr 2012 10:24:52 -0700 Subject: tcm_fc: Do not free tpg structure during wq allocation failure Avoid freeing a registered tpg structure if an alloc_workqueue call fails. This fixes a bug where the failure was leaking memory associated with se_portal_group setup during the original core_tpg_register() call. Signed-off-by: Mark Rustad Acked-by: Kiran Patil Cc: Signed-off-by: Nicholas Bellinger diff --git a/drivers/target/tcm_fc/tfc_conf.c b/drivers/target/tcm_fc/tfc_conf.c index f357039..2948dc9 100644 --- a/drivers/target/tcm_fc/tfc_conf.c +++ b/drivers/target/tcm_fc/tfc_conf.c @@ -300,6 +300,7 @@ static struct se_portal_group *ft_add_tpg( { struct ft_lport_acl *lacl; struct ft_tpg *tpg; + struct workqueue_struct *wq; unsigned long index; int ret; @@ -321,18 +322,20 @@ static struct se_portal_group *ft_add_tpg( tpg->lport_acl = lacl; INIT_LIST_HEAD(&tpg->lun_list); - ret = core_tpg_register(&ft_configfs->tf_ops, wwn, &tpg->se_tpg, - tpg, TRANSPORT_TPG_TYPE_NORMAL); - if (ret < 0) { + wq = alloc_workqueue("tcm_fc", 0, 1); + if (!wq) { kfree(tpg); return NULL; } - tpg->workqueue = alloc_workqueue("tcm_fc", 0, 1); - if (!tpg->workqueue) { + ret = core_tpg_register(&ft_configfs->tf_ops, wwn, &tpg->se_tpg, + tpg, TRANSPORT_TPG_TYPE_NORMAL); + if (ret < 0) { + destroy_workqueue(wq); kfree(tpg); return NULL; } + tpg->workqueue = wq; mutex_lock(&ft_lport_lock); list_add_tail(&tpg->list, &lacl->tpg_list); -- cgit v0.10.2 From 40606dba450830e50420599c52a86cf6ce5c6a14 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Fri, 6 Apr 2012 15:17:32 -0600 Subject: regmap: mmio: convert some error returns to BUG() Some of the error conditions detected by regmap_mmio_*() are pure internal errors, rather than user-/client-triggerable conditions. Convert these to BUG(). Signed-off-by: Stephen Warren Signed-off-by: Mark Brown diff --git a/drivers/base/regmap/regmap-mmio.c b/drivers/base/regmap/regmap-mmio.c index 1a7b5ee..ffa0e85 100644 --- a/drivers/base/regmap/regmap-mmio.c +++ b/drivers/base/regmap/regmap-mmio.c @@ -35,8 +35,8 @@ static int regmap_mmio_gather_write(void *context, struct regmap_mmio_context *ctx = context; u32 offset; - if (reg_size != 4) - return -EIO; + BUG_ON(reg_size != 4); + if (val_size % ctx->val_bytes) return -EIO; @@ -60,7 +60,7 @@ static int regmap_mmio_gather_write(void *context, #endif default: /* Should be caught by regmap_mmio_check_config */ - return -EIO; + BUG(); } val_size -= ctx->val_bytes; val += ctx->val_bytes; @@ -72,8 +72,8 @@ static int regmap_mmio_gather_write(void *context, static int regmap_mmio_write(void *context, const void *data, size_t count) { - if (count < 4) - return -EIO; + BUG_ON(count < 4); + return regmap_mmio_gather_write(context, data, 4, data + 4, count - 4); } @@ -84,8 +84,8 @@ static int regmap_mmio_read(void *context, struct regmap_mmio_context *ctx = context; u32 offset; - if (reg_size != 4) - return -EIO; + BUG_ON(reg_size != 4); + if (val_size % ctx->val_bytes) return -EIO; @@ -109,7 +109,7 @@ static int regmap_mmio_read(void *context, #endif default: /* Should be caught by regmap_mmio_check_config */ - return -EIO; + BUG(); } val_size -= ctx->val_bytes; val += ctx->val_bytes; -- cgit v0.10.2 From 9878647f4349dbaa46b4026ed9bbf8acfc0de34c Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Fri, 6 Apr 2012 15:17:33 -0600 Subject: regmap: mmio: remove some error checks now in the core These error checks are implemented in regmap core. Remove the duplicate code from regmap-mmio.c Signed-off-by: Stephen Warren Signed-off-by: Mark Brown diff --git a/drivers/base/regmap/regmap-mmio.c b/drivers/base/regmap/regmap-mmio.c index ffa0e85..bdf4dc8 100644 --- a/drivers/base/regmap/regmap-mmio.c +++ b/drivers/base/regmap/regmap-mmio.c @@ -37,9 +37,6 @@ static int regmap_mmio_gather_write(void *context, BUG_ON(reg_size != 4); - if (val_size % ctx->val_bytes) - return -EIO; - offset = be32_to_cpup(reg); while (val_size) { @@ -86,9 +83,6 @@ static int regmap_mmio_read(void *context, BUG_ON(reg_size != 4); - if (val_size % ctx->val_bytes) - return -EIO; - offset = be32_to_cpup(reg); while (val_size) { -- cgit v0.10.2 From 851960ba7cb38a6a108d102e4c8b0ab702972e22 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Fri, 6 Apr 2012 15:16:03 -0600 Subject: regmap: validate regmap_raw_read/write val_len val_len should be a multiple of val_bytes. If it's not, error out early. Signed-off-by: Stephen Warren Signed-off-by: Mark Brown diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 6b4a775..ee4fea3 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -595,6 +595,9 @@ int regmap_raw_write(struct regmap *map, unsigned int reg, { int ret; + if (val_len % map->format.val_bytes) + return -EINVAL; + map->lock(map); ret = _regmap_raw_write(map, reg, val, val_len); @@ -753,6 +756,9 @@ int regmap_raw_read(struct regmap *map, unsigned int reg, void *val, unsigned int v; int ret, i; + if (val_len % map->format.val_bytes) + return -EINVAL; + map->lock(map); if (regmap_volatile_range(map, reg, val_count) || map->cache_bypass || -- cgit v0.10.2 From 4f32456e5ed4852abc9b555c887dfb3481ea9cab Mon Sep 17 00:00:00 2001 From: Michael Karcher Date: Fri, 6 Apr 2012 15:34:15 +0200 Subject: ALSA: hda - Fix proc output for ADC amp values of CX20549 The CX20549 has only one single input amp on it's input converter widget. Fix printing of values in the codec file in /proc/asound. Signed-off-by: Michael Karcher Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h index 9a9f372..56b4f74 100644 --- a/sound/pci/hda/hda_codec.h +++ b/sound/pci/hda/hda_codec.h @@ -851,6 +851,9 @@ struct hda_codec { unsigned int pin_amp_workaround:1; /* pin out-amp takes index * (e.g. Conexant codecs) */ + unsigned int single_adc_amp:1; /* adc in-amp takes no index + * (e.g. CX20549 codec) + */ unsigned int no_sticky_stream:1; /* no sticky-PCM stream assignment */ unsigned int pins_shutup:1; /* pins are shut up */ unsigned int no_trigger_sense:1; /* don't trigger at pin-sensing */ diff --git a/sound/pci/hda/hda_proc.c b/sound/pci/hda/hda_proc.c index 254ab52..e59e2f0 100644 --- a/sound/pci/hda/hda_proc.c +++ b/sound/pci/hda/hda_proc.c @@ -651,9 +651,16 @@ static void print_codec_info(struct snd_info_entry *entry, snd_iprintf(buffer, " Amp-In caps: "); print_amp_caps(buffer, codec, nid, HDA_INPUT); snd_iprintf(buffer, " Amp-In vals: "); - print_amp_vals(buffer, codec, nid, HDA_INPUT, - wid_caps & AC_WCAP_STEREO, - wid_type == AC_WID_PIN ? 1 : conn_len); + if (wid_type == AC_WID_PIN || + (codec->single_adc_amp && + wid_type == AC_WID_AUD_IN)) + print_amp_vals(buffer, codec, nid, HDA_INPUT, + wid_caps & AC_WCAP_STEREO, + 1); + else + print_amp_vals(buffer, codec, nid, HDA_INPUT, + wid_caps & AC_WCAP_STEREO, + conn_len); } if (wid_caps & AC_WCAP_OUT_AMP) { snd_iprintf(buffer, " Amp-Out caps: "); diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index e6eafb1..368617a 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -141,7 +141,6 @@ struct conexant_spec { unsigned int hp_laptop:1; unsigned int asus:1; unsigned int pin_eapd_ctrls:1; - unsigned int single_adc_amp:1; unsigned int adc_switching:1; @@ -1111,6 +1110,7 @@ static int patch_cxt5045(struct hda_codec *codec) return -ENOMEM; codec->spec = spec; codec->pin_amp_workaround = 1; + codec->single_adc_amp = 1; spec->multiout.max_channels = 2; spec->multiout.num_dacs = ARRAY_SIZE(cxt5045_dac_nids); @@ -4220,7 +4220,7 @@ static int cx_auto_add_capture_volume(struct hda_codec *codec, hda_nid_t nid, int idx = get_input_connection(codec, adc_nid, nid); if (idx < 0) continue; - if (spec->single_adc_amp) + if (codec->single_adc_amp) idx = 0; return cx_auto_add_volume_idx(codec, label, pfx, cidx, adc_nid, HDA_INPUT, idx); @@ -4275,7 +4275,7 @@ static int cx_auto_build_input_controls(struct hda_codec *codec) if (cidx < 0) continue; input_conn[i] = spec->imux_info[i].adc; - if (!spec->single_adc_amp) + if (!codec->single_adc_amp) input_conn[i] |= cidx << 8; if (i > 0 && input_conn[i] != input_conn[0]) multi_connection = 1; @@ -4470,7 +4470,7 @@ static int patch_conexant_auto(struct hda_codec *codec) switch (codec->vendor_id) { case 0x14f15045: - spec->single_adc_amp = 1; + codec->single_adc_amp = 1; break; case 0x14f15051: add_cx5051_fake_mutes(codec); -- cgit v0.10.2 From 3edbbb9ec5621478dc3c3b1c66ecb7d177b35c20 Mon Sep 17 00:00:00 2001 From: Michael Karcher Date: Fri, 6 Apr 2012 15:34:16 +0200 Subject: ALSA: hda - Rename capture sources of CX20549 to match common conventions This includes renaming "Line In" to line, also in the mixer settings. Signed-off-by: Michael Karcher Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index 368617a..c0a3a17 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -686,27 +686,27 @@ static const struct hda_channel_mode cxt5045_modes[1] = { static const struct hda_input_mux cxt5045_capture_source = { .num_items = 2, .items = { - { "IntMic", 0x1 }, - { "ExtMic", 0x2 }, + { "Internal Mic", 0x1 }, + { "Mic", 0x2 }, } }; static const struct hda_input_mux cxt5045_capture_source_benq = { .num_items = 5, .items = { - { "IntMic", 0x1 }, - { "ExtMic", 0x2 }, - { "LineIn", 0x3 }, - { "CD", 0x4 }, - { "Mixer", 0x0 }, + { "CD", 0x4 }, + { "Internal Mic", 0x1 }, + { "Mic", 0x2 }, + { "Line", 0x3 }, + { "Mixer", 0x0 }, } }; static const struct hda_input_mux cxt5045_capture_source_hp530 = { .num_items = 2, .items = { - { "ExtMic", 0x1 }, - { "IntMic", 0x2 }, + { "Mic", 0x1 }, + { "Internal Mic", 0x2 }, } }; @@ -826,10 +826,10 @@ static const struct snd_kcontrol_new cxt5045_benq_mixers[] = { HDA_CODEC_VOLUME("CD Playback Volume", 0x17, 0x4, HDA_INPUT), HDA_CODEC_MUTE("CD Playback Switch", 0x17, 0x4, HDA_INPUT), - HDA_CODEC_VOLUME("Line In Capture Volume", 0x1a, 0x03, HDA_INPUT), - HDA_CODEC_MUTE("Line In Capture Switch", 0x1a, 0x03, HDA_INPUT), - HDA_CODEC_VOLUME("Line In Playback Volume", 0x17, 0x3, HDA_INPUT), - HDA_CODEC_MUTE("Line In Playback Switch", 0x17, 0x3, HDA_INPUT), + HDA_CODEC_VOLUME("Line Capture Volume", 0x1a, 0x03, HDA_INPUT), + HDA_CODEC_MUTE("Line Capture Switch", 0x1a, 0x03, HDA_INPUT), + HDA_CODEC_VOLUME("Line Playback Volume", 0x17, 0x3, HDA_INPUT), + HDA_CODEC_MUTE("Line Playback Switch", 0x17, 0x3, HDA_INPUT), HDA_CODEC_VOLUME("Mixer Capture Volume", 0x1a, 0x0, HDA_INPUT), HDA_CODEC_MUTE("Mixer Capture Switch", 0x1a, 0x0, HDA_INPUT), -- cgit v0.10.2 From cbf2d28e83d47792bd7af000017042dbc59f5df6 Mon Sep 17 00:00:00 2001 From: Michael Karcher Date: Fri, 6 Apr 2012 15:34:17 +0200 Subject: ALSA: hda - fix record volume controls of CX20459 ("Venice") The "input converter" widget of the CX20459 has only one input amplifier, expose that one as "Capture Volume/Capture Switch". The actual record source selection is already exposed through the separately installed input mux. Signed-off-by: Michael Karcher Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index c0a3a17..4b51c8f 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -797,10 +797,8 @@ static void cxt5045_hp_unsol_event(struct hda_codec *codec, } static const struct snd_kcontrol_new cxt5045_mixers[] = { - HDA_CODEC_VOLUME("Internal Mic Capture Volume", 0x1a, 0x01, HDA_INPUT), - HDA_CODEC_MUTE("Internal Mic Capture Switch", 0x1a, 0x01, HDA_INPUT), - HDA_CODEC_VOLUME("Mic Capture Volume", 0x1a, 0x02, HDA_INPUT), - HDA_CODEC_MUTE("Mic Capture Switch", 0x1a, 0x02, HDA_INPUT), + HDA_CODEC_VOLUME("Capture Volume", 0x1a, 0x00, HDA_INPUT), + HDA_CODEC_MUTE("Capture Switch", 0x1a, 0x0, HDA_INPUT), HDA_CODEC_VOLUME("PCM Playback Volume", 0x17, 0x0, HDA_INPUT), HDA_CODEC_MUTE("PCM Playback Switch", 0x17, 0x0, HDA_INPUT), HDA_CODEC_VOLUME("Internal Mic Playback Volume", 0x17, 0x1, HDA_INPUT), @@ -821,27 +819,18 @@ static const struct snd_kcontrol_new cxt5045_mixers[] = { }; static const struct snd_kcontrol_new cxt5045_benq_mixers[] = { - HDA_CODEC_VOLUME("CD Capture Volume", 0x1a, 0x04, HDA_INPUT), - HDA_CODEC_MUTE("CD Capture Switch", 0x1a, 0x04, HDA_INPUT), HDA_CODEC_VOLUME("CD Playback Volume", 0x17, 0x4, HDA_INPUT), HDA_CODEC_MUTE("CD Playback Switch", 0x17, 0x4, HDA_INPUT), - HDA_CODEC_VOLUME("Line Capture Volume", 0x1a, 0x03, HDA_INPUT), - HDA_CODEC_MUTE("Line Capture Switch", 0x1a, 0x03, HDA_INPUT), HDA_CODEC_VOLUME("Line Playback Volume", 0x17, 0x3, HDA_INPUT), HDA_CODEC_MUTE("Line Playback Switch", 0x17, 0x3, HDA_INPUT), - HDA_CODEC_VOLUME("Mixer Capture Volume", 0x1a, 0x0, HDA_INPUT), - HDA_CODEC_MUTE("Mixer Capture Switch", 0x1a, 0x0, HDA_INPUT), - {} }; static const struct snd_kcontrol_new cxt5045_mixers_hp530[] = { - HDA_CODEC_VOLUME("Internal Mic Capture Volume", 0x1a, 0x02, HDA_INPUT), - HDA_CODEC_MUTE("Internal Mic Capture Switch", 0x1a, 0x02, HDA_INPUT), - HDA_CODEC_VOLUME("Mic Capture Volume", 0x1a, 0x01, HDA_INPUT), - HDA_CODEC_MUTE("Mic Capture Switch", 0x1a, 0x01, HDA_INPUT), + HDA_CODEC_VOLUME("Capture Volume", 0x1a, 0x00, HDA_INPUT), + HDA_CODEC_MUTE("Capture Switch", 0x1a, 0x0, HDA_INPUT), HDA_CODEC_VOLUME("PCM Playback Volume", 0x17, 0x0, HDA_INPUT), HDA_CODEC_MUTE("PCM Playback Switch", 0x17, 0x0, HDA_INPUT), HDA_CODEC_VOLUME("Internal Mic Playback Volume", 0x17, 0x2, HDA_INPUT), @@ -977,16 +966,8 @@ static const struct snd_kcontrol_new cxt5045_test_mixer[] = { .put = conexant_mux_enum_put, }, /* Audio input controls */ - HDA_CODEC_VOLUME("Input-1 Volume", 0x1a, 0x0, HDA_INPUT), - HDA_CODEC_MUTE("Input-1 Switch", 0x1a, 0x0, HDA_INPUT), - HDA_CODEC_VOLUME("Input-2 Volume", 0x1a, 0x1, HDA_INPUT), - HDA_CODEC_MUTE("Input-2 Switch", 0x1a, 0x1, HDA_INPUT), - HDA_CODEC_VOLUME("Input-3 Volume", 0x1a, 0x2, HDA_INPUT), - HDA_CODEC_MUTE("Input-3 Switch", 0x1a, 0x2, HDA_INPUT), - HDA_CODEC_VOLUME("Input-4 Volume", 0x1a, 0x3, HDA_INPUT), - HDA_CODEC_MUTE("Input-4 Switch", 0x1a, 0x3, HDA_INPUT), - HDA_CODEC_VOLUME("Input-5 Volume", 0x1a, 0x4, HDA_INPUT), - HDA_CODEC_MUTE("Input-5 Switch", 0x1a, 0x4, HDA_INPUT), + HDA_CODEC_VOLUME("Capture Volume", 0x1a, 0x0, HDA_INPUT), + HDA_CODEC_MUTE("Capture Switch", 0x1a, 0x0, HDA_INPUT), { } /* end */ }; -- cgit v0.10.2 From e6e03daecd2c82437b550ad1a62052c22fdb2b5b Mon Sep 17 00:00:00 2001 From: Michael Karcher Date: Fri, 6 Apr 2012 15:34:18 +0200 Subject: ALSA: hda - Remove CD control from model=benq for CX20549 The ID used for detection of the BenQ R55E actually identifies the Quanta TW3 ODM design, which is also used for the Gigabyte W551 laptop series. Schematics on the internet clearly indicate that the "Port C" (analog input connected to record source #4 and mixer input #4) is unconnected. Playing an audio CD through analog playback (using cdplay from cdtools) produces no sound, even with the mixer input labelled "CD" enabled, and the volume control in the CD drive set to maximum. This indicates the connection is really not present. Signed-off-by: Michael Karcher Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index 4b51c8f..4b36548 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -692,9 +692,8 @@ static const struct hda_input_mux cxt5045_capture_source = { }; static const struct hda_input_mux cxt5045_capture_source_benq = { - .num_items = 5, + .num_items = 4, .items = { - { "CD", 0x4 }, { "Internal Mic", 0x1 }, { "Mic", 0x2 }, { "Line", 0x3 }, @@ -819,9 +818,6 @@ static const struct snd_kcontrol_new cxt5045_mixers[] = { }; static const struct snd_kcontrol_new cxt5045_benq_mixers[] = { - HDA_CODEC_VOLUME("CD Playback Volume", 0x17, 0x4, HDA_INPUT), - HDA_CODEC_MUTE("CD Playback Switch", 0x17, 0x4, HDA_INPUT), - HDA_CODEC_VOLUME("Line Playback Volume", 0x17, 0x3, HDA_INPUT), HDA_CODEC_MUTE("Line Playback Switch", 0x17, 0x3, HDA_INPUT), -- cgit v0.10.2 From 51969d62c3b26e887dae734de421b320a296ac58 Mon Sep 17 00:00:00 2001 From: Michael Karcher Date: Fri, 6 Apr 2012 15:34:19 +0200 Subject: ALSA: hda - CX20549 doesn't need pin_amp_workaround. CX20549 (ctx5045) doesn't accept data on index 1 for output pins, as shown in the following hda-var transaction: $ hda-verb /dev/snd/hwC0D0 0x10 set_amp_gain 0xb126 nid = 0x10, verb = 0x300, param = 0xb126 value = 0x0 $ hda-verb /dev/snd/hwC0D0 0x10 get_amp_gain 0x8001 nid = 0x10, verb = 0xb00, param = 0x8001 value = 0x0 Signed-off-by: Michael Karcher Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index 4b36548..84337e6 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -1086,7 +1086,6 @@ static int patch_cxt5045(struct hda_codec *codec) if (!spec) return -ENOMEM; codec->spec = spec; - codec->pin_amp_workaround = 1; codec->single_adc_amp = 1; spec->multiout.max_channels = 2; @@ -4443,7 +4442,6 @@ static int patch_conexant_auto(struct hda_codec *codec) if (!spec) return -ENOMEM; codec->spec = spec; - codec->pin_amp_workaround = 1; switch (codec->vendor_id) { case 0x14f15045: @@ -4451,7 +4449,10 @@ static int patch_conexant_auto(struct hda_codec *codec) break; case 0x14f15051: add_cx5051_fake_mutes(codec); + codec->pin_amp_workaround = 1; break; + default: + codec->pin_amp_workaround = 1; } apply_pin_fixup(codec, cxt_fixups, cxt_pincfg_tbl); -- cgit v0.10.2 From 250f32747e62cb415b85083e247184188f24e566 Mon Sep 17 00:00:00 2001 From: Michael Karcher Date: Fri, 6 Apr 2012 15:34:20 +0200 Subject: ALSA: hda - clean up CX20549 test mixer setup name pins consistently (MIC1/LINE1/HP-OUT/CD) on all controls affecting those pins. remove duplicate SET_AMP_GAIN_MUTE to 0x17/index 0 and 0x17/index 1 really select MIC1, not Mixer out for recording "Mixer out" for recording is not a "pin", adjust comment Signed-off-by: Michael Karcher Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index 84337e6..3848711 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -930,10 +930,10 @@ static const struct snd_kcontrol_new cxt5045_test_mixer[] = { /* Output controls */ HDA_CODEC_VOLUME("Speaker Playback Volume", 0x10, 0x0, HDA_OUTPUT), HDA_CODEC_MUTE("Speaker Playback Switch", 0x10, 0x0, HDA_OUTPUT), - HDA_CODEC_VOLUME("Node 11 Playback Volume", 0x11, 0x0, HDA_OUTPUT), - HDA_CODEC_MUTE("Node 11 Playback Switch", 0x11, 0x0, HDA_OUTPUT), - HDA_CODEC_VOLUME("Node 12 Playback Volume", 0x12, 0x0, HDA_OUTPUT), - HDA_CODEC_MUTE("Node 12 Playback Switch", 0x12, 0x0, HDA_OUTPUT), + HDA_CODEC_VOLUME("HP-OUT Playback Volume", 0x11, 0x0, HDA_OUTPUT), + HDA_CODEC_MUTE("HP-OUT Playback Switch", 0x11, 0x0, HDA_OUTPUT), + HDA_CODEC_VOLUME("LINE1 Playback Volume", 0x12, 0x0, HDA_OUTPUT), + HDA_CODEC_MUTE("LINE1 Playback Switch", 0x12, 0x0, HDA_OUTPUT), /* Modes for retasking pin widgets */ CXT_PIN_MODE("HP-OUT pin mode", 0x11, CXT_PIN_DIR_INOUT), @@ -944,16 +944,16 @@ static const struct snd_kcontrol_new cxt5045_test_mixer[] = { /* Loopback mixer controls */ - HDA_CODEC_VOLUME("Mixer-1 Volume", 0x17, 0x0, HDA_INPUT), - HDA_CODEC_MUTE("Mixer-1 Switch", 0x17, 0x0, HDA_INPUT), - HDA_CODEC_VOLUME("Mixer-2 Volume", 0x17, 0x1, HDA_INPUT), - HDA_CODEC_MUTE("Mixer-2 Switch", 0x17, 0x1, HDA_INPUT), - HDA_CODEC_VOLUME("Mixer-3 Volume", 0x17, 0x2, HDA_INPUT), - HDA_CODEC_MUTE("Mixer-3 Switch", 0x17, 0x2, HDA_INPUT), - HDA_CODEC_VOLUME("Mixer-4 Volume", 0x17, 0x3, HDA_INPUT), - HDA_CODEC_MUTE("Mixer-4 Switch", 0x17, 0x3, HDA_INPUT), - HDA_CODEC_VOLUME("Mixer-5 Volume", 0x17, 0x4, HDA_INPUT), - HDA_CODEC_MUTE("Mixer-5 Switch", 0x17, 0x4, HDA_INPUT), + HDA_CODEC_VOLUME("PCM Volume", 0x17, 0x0, HDA_INPUT), + HDA_CODEC_MUTE("PCM Switch", 0x17, 0x0, HDA_INPUT), + HDA_CODEC_VOLUME("MIC1 pin Volume", 0x17, 0x1, HDA_INPUT), + HDA_CODEC_MUTE("MIC1 pin Switch", 0x17, 0x1, HDA_INPUT), + HDA_CODEC_VOLUME("LINE1 pin Volume", 0x17, 0x2, HDA_INPUT), + HDA_CODEC_MUTE("LINE1 pin Switch", 0x17, 0x2, HDA_INPUT), + HDA_CODEC_VOLUME("HP-OUT pin Volume", 0x17, 0x3, HDA_INPUT), + HDA_CODEC_MUTE("HP-OUT pin Switch", 0x17, 0x3, HDA_INPUT), + HDA_CODEC_VOLUME("CD pin Volume", 0x17, 0x4, HDA_INPUT), + HDA_CODEC_MUTE("CD pin Switch", 0x17, 0x4, HDA_INPUT), { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "Input Source", @@ -985,10 +985,6 @@ static const struct hda_verb cxt5045_test_init_verbs[] = { {0x13, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT}, {0x18, AC_VERB_SET_DIGI_CONVERT_1, 0}, - /* Start with output sum widgets muted and their output gains at min */ - {0x17, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(0)}, - {0x17, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(1)}, - /* Unmute retasking pin widget output buffers since the default * state appears to be output. As the pin mode is changed by the * user the pin mode control will take care of enabling the pin's @@ -1003,11 +999,11 @@ static const struct hda_verb cxt5045_test_init_verbs[] = { /* Set ADC connection select to match default mixer setting (mic1 * pin) */ - {0x1a, AC_VERB_SET_CONNECT_SEL, 0x00}, - {0x17, AC_VERB_SET_CONNECT_SEL, 0x00}, + {0x1a, AC_VERB_SET_CONNECT_SEL, 0x01}, + {0x17, AC_VERB_SET_CONNECT_SEL, 0x01}, /* Mute all inputs to mixer widget (even unconnected ones) */ - {0x17, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(0)}, /* Mixer pin */ + {0x17, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(0)}, /* Mixer */ {0x17, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(1)}, /* Mic1 pin */ {0x17, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(2)}, /* Line pin */ {0x17, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(3)}, /* HP pin */ -- cgit v0.10.2 From 0034102808e0dbbf3a2394b82b1bb40b5778de9e Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 7 Apr 2012 18:30:41 -0700 Subject: Linux 3.4-rc2 diff --git a/Makefile b/Makefile index 5e637c2..0df3d00 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 4 SUBLEVEL = 0 -EXTRAVERSION = -rc1 +EXTRAVERSION = -rc2 NAME = Saber-toothed Squirrel # *DOCUMENTATION* -- cgit v0.10.2 From ef798d0207e02e05bfabc7ba96e8a6f2cc07066e Mon Sep 17 00:00:00 2001 From: Ondrej Zary Date: Wed, 21 Mar 2012 23:36:50 +0100 Subject: kyrofb: fix on x86_64 kyrofb is completely broken on x86_64 because the registers are defined as unsigned long. Change them to u32 to make the driver work. Tested with Hercules 3D Prophet 4000XT. Signed-off-by: Ondrej Zary Acked-by: Paul Mundt Signed-off-by: Florian Tobias Schandinat diff --git a/drivers/video/kyro/STG4000Reg.h b/drivers/video/kyro/STG4000Reg.h index 5d62698..50f4670 100644 --- a/drivers/video/kyro/STG4000Reg.h +++ b/drivers/video/kyro/STG4000Reg.h @@ -73,210 +73,210 @@ typedef enum _OVRL_PIX_FORMAT { /* Register Table */ typedef struct { /* 0h */ - volatile unsigned long Thread0Enable; /* 0x0000 */ - volatile unsigned long Thread1Enable; /* 0x0004 */ - volatile unsigned long Thread0Recover; /* 0x0008 */ - volatile unsigned long Thread1Recover; /* 0x000C */ - volatile unsigned long Thread0Step; /* 0x0010 */ - volatile unsigned long Thread1Step; /* 0x0014 */ - volatile unsigned long VideoInStatus; /* 0x0018 */ - volatile unsigned long Core2InSignStart; /* 0x001C */ - volatile unsigned long Core1ResetVector; /* 0x0020 */ - volatile unsigned long Core1ROMOffset; /* 0x0024 */ - volatile unsigned long Core1ArbiterPriority; /* 0x0028 */ - volatile unsigned long VideoInControl; /* 0x002C */ - volatile unsigned long VideoInReg0CtrlA; /* 0x0030 */ - volatile unsigned long VideoInReg0CtrlB; /* 0x0034 */ - volatile unsigned long VideoInReg1CtrlA; /* 0x0038 */ - volatile unsigned long VideoInReg1CtrlB; /* 0x003C */ - volatile unsigned long Thread0Kicker; /* 0x0040 */ - volatile unsigned long Core2InputSign; /* 0x0044 */ - volatile unsigned long Thread0ProgCtr; /* 0x0048 */ - volatile unsigned long Thread1ProgCtr; /* 0x004C */ - volatile unsigned long Thread1Kicker; /* 0x0050 */ - volatile unsigned long GPRegister1; /* 0x0054 */ - volatile unsigned long GPRegister2; /* 0x0058 */ - volatile unsigned long GPRegister3; /* 0x005C */ - volatile unsigned long GPRegister4; /* 0x0060 */ - volatile unsigned long SerialIntA; /* 0x0064 */ - - volatile unsigned long Fill0[6]; /* GAP 0x0068 - 0x007C */ - - volatile unsigned long SoftwareReset; /* 0x0080 */ - volatile unsigned long SerialIntB; /* 0x0084 */ - - volatile unsigned long Fill1[37]; /* GAP 0x0088 - 0x011C */ - - volatile unsigned long ROMELQV; /* 0x011C */ - volatile unsigned long WLWH; /* 0x0120 */ - volatile unsigned long ROMELWL; /* 0x0124 */ - - volatile unsigned long dwFill_1; /* GAP 0x0128 */ - - volatile unsigned long IntStatus; /* 0x012C */ - volatile unsigned long IntMask; /* 0x0130 */ - volatile unsigned long IntClear; /* 0x0134 */ - - volatile unsigned long Fill2[6]; /* GAP 0x0138 - 0x014C */ - - volatile unsigned long ROMGPIOA; /* 0x0150 */ - volatile unsigned long ROMGPIOB; /* 0x0154 */ - volatile unsigned long ROMGPIOC; /* 0x0158 */ - volatile unsigned long ROMGPIOD; /* 0x015C */ - - volatile unsigned long Fill3[2]; /* GAP 0x0160 - 0x0168 */ - - volatile unsigned long AGPIntID; /* 0x0168 */ - volatile unsigned long AGPIntClassCode; /* 0x016C */ - volatile unsigned long AGPIntBIST; /* 0x0170 */ - volatile unsigned long AGPIntSSID; /* 0x0174 */ - volatile unsigned long AGPIntPMCSR; /* 0x0178 */ - volatile unsigned long VGAFrameBufBase; /* 0x017C */ - volatile unsigned long VGANotify; /* 0x0180 */ - volatile unsigned long DACPLLMode; /* 0x0184 */ - volatile unsigned long Core1VideoClockDiv; /* 0x0188 */ - volatile unsigned long AGPIntStat; /* 0x018C */ + volatile u32 Thread0Enable; /* 0x0000 */ + volatile u32 Thread1Enable; /* 0x0004 */ + volatile u32 Thread0Recover; /* 0x0008 */ + volatile u32 Thread1Recover; /* 0x000C */ + volatile u32 Thread0Step; /* 0x0010 */ + volatile u32 Thread1Step; /* 0x0014 */ + volatile u32 VideoInStatus; /* 0x0018 */ + volatile u32 Core2InSignStart; /* 0x001C */ + volatile u32 Core1ResetVector; /* 0x0020 */ + volatile u32 Core1ROMOffset; /* 0x0024 */ + volatile u32 Core1ArbiterPriority; /* 0x0028 */ + volatile u32 VideoInControl; /* 0x002C */ + volatile u32 VideoInReg0CtrlA; /* 0x0030 */ + volatile u32 VideoInReg0CtrlB; /* 0x0034 */ + volatile u32 VideoInReg1CtrlA; /* 0x0038 */ + volatile u32 VideoInReg1CtrlB; /* 0x003C */ + volatile u32 Thread0Kicker; /* 0x0040 */ + volatile u32 Core2InputSign; /* 0x0044 */ + volatile u32 Thread0ProgCtr; /* 0x0048 */ + volatile u32 Thread1ProgCtr; /* 0x004C */ + volatile u32 Thread1Kicker; /* 0x0050 */ + volatile u32 GPRegister1; /* 0x0054 */ + volatile u32 GPRegister2; /* 0x0058 */ + volatile u32 GPRegister3; /* 0x005C */ + volatile u32 GPRegister4; /* 0x0060 */ + volatile u32 SerialIntA; /* 0x0064 */ + + volatile u32 Fill0[6]; /* GAP 0x0068 - 0x007C */ + + volatile u32 SoftwareReset; /* 0x0080 */ + volatile u32 SerialIntB; /* 0x0084 */ + + volatile u32 Fill1[37]; /* GAP 0x0088 - 0x011C */ + + volatile u32 ROMELQV; /* 0x011C */ + volatile u32 WLWH; /* 0x0120 */ + volatile u32 ROMELWL; /* 0x0124 */ + + volatile u32 dwFill_1; /* GAP 0x0128 */ + + volatile u32 IntStatus; /* 0x012C */ + volatile u32 IntMask; /* 0x0130 */ + volatile u32 IntClear; /* 0x0134 */ + + volatile u32 Fill2[6]; /* GAP 0x0138 - 0x014C */ + + volatile u32 ROMGPIOA; /* 0x0150 */ + volatile u32 ROMGPIOB; /* 0x0154 */ + volatile u32 ROMGPIOC; /* 0x0158 */ + volatile u32 ROMGPIOD; /* 0x015C */ + + volatile u32 Fill3[2]; /* GAP 0x0160 - 0x0168 */ + + volatile u32 AGPIntID; /* 0x0168 */ + volatile u32 AGPIntClassCode; /* 0x016C */ + volatile u32 AGPIntBIST; /* 0x0170 */ + volatile u32 AGPIntSSID; /* 0x0174 */ + volatile u32 AGPIntPMCSR; /* 0x0178 */ + volatile u32 VGAFrameBufBase; /* 0x017C */ + volatile u32 VGANotify; /* 0x0180 */ + volatile u32 DACPLLMode; /* 0x0184 */ + volatile u32 Core1VideoClockDiv; /* 0x0188 */ + volatile u32 AGPIntStat; /* 0x018C */ /* - volatile unsigned long Fill4[0x0400/4 - 0x0190/4]; //GAP 0x0190 - 0x0400 - volatile unsigned long Fill5[0x05FC/4 - 0x0400/4]; //GAP 0x0400 - 0x05FC Fog Table - volatile unsigned long Fill6[0x0604/4 - 0x0600/4]; //GAP 0x0600 - 0x0604 - volatile unsigned long Fill7[0x0680/4 - 0x0608/4]; //GAP 0x0608 - 0x0680 - volatile unsigned long Fill8[0x07FC/4 - 0x0684/4]; //GAP 0x0684 - 0x07FC + volatile u32 Fill4[0x0400/4 - 0x0190/4]; //GAP 0x0190 - 0x0400 + volatile u32 Fill5[0x05FC/4 - 0x0400/4]; //GAP 0x0400 - 0x05FC Fog Table + volatile u32 Fill6[0x0604/4 - 0x0600/4]; //GAP 0x0600 - 0x0604 + volatile u32 Fill7[0x0680/4 - 0x0608/4]; //GAP 0x0608 - 0x0680 + volatile u32 Fill8[0x07FC/4 - 0x0684/4]; //GAP 0x0684 - 0x07FC */ - volatile unsigned long Fill4[412]; /* 0x0190 - 0x07FC */ - - volatile unsigned long TACtrlStreamBase; /* 0x0800 */ - volatile unsigned long TAObjDataBase; /* 0x0804 */ - volatile unsigned long TAPtrDataBase; /* 0x0808 */ - volatile unsigned long TARegionDataBase; /* 0x080C */ - volatile unsigned long TATailPtrBase; /* 0x0810 */ - volatile unsigned long TAPtrRegionSize; /* 0x0814 */ - volatile unsigned long TAConfiguration; /* 0x0818 */ - volatile unsigned long TAObjDataStartAddr; /* 0x081C */ - volatile unsigned long TAObjDataEndAddr; /* 0x0820 */ - volatile unsigned long TAXScreenClip; /* 0x0824 */ - volatile unsigned long TAYScreenClip; /* 0x0828 */ - volatile unsigned long TARHWClamp; /* 0x082C */ - volatile unsigned long TARHWCompare; /* 0x0830 */ - volatile unsigned long TAStart; /* 0x0834 */ - volatile unsigned long TAObjReStart; /* 0x0838 */ - volatile unsigned long TAPtrReStart; /* 0x083C */ - volatile unsigned long TAStatus1; /* 0x0840 */ - volatile unsigned long TAStatus2; /* 0x0844 */ - volatile unsigned long TAIntStatus; /* 0x0848 */ - volatile unsigned long TAIntMask; /* 0x084C */ - - volatile unsigned long Fill5[235]; /* GAP 0x0850 - 0x0BF8 */ - - volatile unsigned long TextureAddrThresh; /* 0x0BFC */ - volatile unsigned long Core1Translation; /* 0x0C00 */ - volatile unsigned long TextureAddrReMap; /* 0x0C04 */ - volatile unsigned long RenderOutAGPRemap; /* 0x0C08 */ - volatile unsigned long _3DRegionReadTrans; /* 0x0C0C */ - volatile unsigned long _3DPtrReadTrans; /* 0x0C10 */ - volatile unsigned long _3DParamReadTrans; /* 0x0C14 */ - volatile unsigned long _3DRegionReadThresh; /* 0x0C18 */ - volatile unsigned long _3DPtrReadThresh; /* 0x0C1C */ - volatile unsigned long _3DParamReadThresh; /* 0x0C20 */ - volatile unsigned long _3DRegionReadAGPRemap; /* 0x0C24 */ - volatile unsigned long _3DPtrReadAGPRemap; /* 0x0C28 */ - volatile unsigned long _3DParamReadAGPRemap; /* 0x0C2C */ - volatile unsigned long ZBufferAGPRemap; /* 0x0C30 */ - volatile unsigned long TAIndexAGPRemap; /* 0x0C34 */ - volatile unsigned long TAVertexAGPRemap; /* 0x0C38 */ - volatile unsigned long TAUVAddrTrans; /* 0x0C3C */ - volatile unsigned long TATailPtrCacheTrans; /* 0x0C40 */ - volatile unsigned long TAParamWriteTrans; /* 0x0C44 */ - volatile unsigned long TAPtrWriteTrans; /* 0x0C48 */ - volatile unsigned long TAParamWriteThresh; /* 0x0C4C */ - volatile unsigned long TAPtrWriteThresh; /* 0x0C50 */ - volatile unsigned long TATailPtrCacheAGPRe; /* 0x0C54 */ - volatile unsigned long TAParamWriteAGPRe; /* 0x0C58 */ - volatile unsigned long TAPtrWriteAGPRe; /* 0x0C5C */ - volatile unsigned long SDRAMArbiterConf; /* 0x0C60 */ - volatile unsigned long SDRAMConf0; /* 0x0C64 */ - volatile unsigned long SDRAMConf1; /* 0x0C68 */ - volatile unsigned long SDRAMConf2; /* 0x0C6C */ - volatile unsigned long SDRAMRefresh; /* 0x0C70 */ - volatile unsigned long SDRAMPowerStat; /* 0x0C74 */ - - volatile unsigned long Fill6[2]; /* GAP 0x0C78 - 0x0C7C */ - - volatile unsigned long RAMBistData; /* 0x0C80 */ - volatile unsigned long RAMBistCtrl; /* 0x0C84 */ - volatile unsigned long FIFOBistKey; /* 0x0C88 */ - volatile unsigned long RAMBistResult; /* 0x0C8C */ - volatile unsigned long FIFOBistResult; /* 0x0C90 */ + volatile u32 Fill4[412]; /* 0x0190 - 0x07FC */ + + volatile u32 TACtrlStreamBase; /* 0x0800 */ + volatile u32 TAObjDataBase; /* 0x0804 */ + volatile u32 TAPtrDataBase; /* 0x0808 */ + volatile u32 TARegionDataBase; /* 0x080C */ + volatile u32 TATailPtrBase; /* 0x0810 */ + volatile u32 TAPtrRegionSize; /* 0x0814 */ + volatile u32 TAConfiguration; /* 0x0818 */ + volatile u32 TAObjDataStartAddr; /* 0x081C */ + volatile u32 TAObjDataEndAddr; /* 0x0820 */ + volatile u32 TAXScreenClip; /* 0x0824 */ + volatile u32 TAYScreenClip; /* 0x0828 */ + volatile u32 TARHWClamp; /* 0x082C */ + volatile u32 TARHWCompare; /* 0x0830 */ + volatile u32 TAStart; /* 0x0834 */ + volatile u32 TAObjReStart; /* 0x0838 */ + volatile u32 TAPtrReStart; /* 0x083C */ + volatile u32 TAStatus1; /* 0x0840 */ + volatile u32 TAStatus2; /* 0x0844 */ + volatile u32 TAIntStatus; /* 0x0848 */ + volatile u32 TAIntMask; /* 0x084C */ + + volatile u32 Fill5[235]; /* GAP 0x0850 - 0x0BF8 */ + + volatile u32 TextureAddrThresh; /* 0x0BFC */ + volatile u32 Core1Translation; /* 0x0C00 */ + volatile u32 TextureAddrReMap; /* 0x0C04 */ + volatile u32 RenderOutAGPRemap; /* 0x0C08 */ + volatile u32 _3DRegionReadTrans; /* 0x0C0C */ + volatile u32 _3DPtrReadTrans; /* 0x0C10 */ + volatile u32 _3DParamReadTrans; /* 0x0C14 */ + volatile u32 _3DRegionReadThresh; /* 0x0C18 */ + volatile u32 _3DPtrReadThresh; /* 0x0C1C */ + volatile u32 _3DParamReadThresh; /* 0x0C20 */ + volatile u32 _3DRegionReadAGPRemap; /* 0x0C24 */ + volatile u32 _3DPtrReadAGPRemap; /* 0x0C28 */ + volatile u32 _3DParamReadAGPRemap; /* 0x0C2C */ + volatile u32 ZBufferAGPRemap; /* 0x0C30 */ + volatile u32 TAIndexAGPRemap; /* 0x0C34 */ + volatile u32 TAVertexAGPRemap; /* 0x0C38 */ + volatile u32 TAUVAddrTrans; /* 0x0C3C */ + volatile u32 TATailPtrCacheTrans; /* 0x0C40 */ + volatile u32 TAParamWriteTrans; /* 0x0C44 */ + volatile u32 TAPtrWriteTrans; /* 0x0C48 */ + volatile u32 TAParamWriteThresh; /* 0x0C4C */ + volatile u32 TAPtrWriteThresh; /* 0x0C50 */ + volatile u32 TATailPtrCacheAGPRe; /* 0x0C54 */ + volatile u32 TAParamWriteAGPRe; /* 0x0C58 */ + volatile u32 TAPtrWriteAGPRe; /* 0x0C5C */ + volatile u32 SDRAMArbiterConf; /* 0x0C60 */ + volatile u32 SDRAMConf0; /* 0x0C64 */ + volatile u32 SDRAMConf1; /* 0x0C68 */ + volatile u32 SDRAMConf2; /* 0x0C6C */ + volatile u32 SDRAMRefresh; /* 0x0C70 */ + volatile u32 SDRAMPowerStat; /* 0x0C74 */ + + volatile u32 Fill6[2]; /* GAP 0x0C78 - 0x0C7C */ + + volatile u32 RAMBistData; /* 0x0C80 */ + volatile u32 RAMBistCtrl; /* 0x0C84 */ + volatile u32 FIFOBistKey; /* 0x0C88 */ + volatile u32 RAMBistResult; /* 0x0C8C */ + volatile u32 FIFOBistResult; /* 0x0C90 */ /* - volatile unsigned long Fill11[0x0CBC/4 - 0x0C94/4]; //GAP 0x0C94 - 0x0CBC - volatile unsigned long Fill12[0x0CD0/4 - 0x0CC0/4]; //GAP 0x0CC0 - 0x0CD0 3DRegisters + volatile u32 Fill11[0x0CBC/4 - 0x0C94/4]; //GAP 0x0C94 - 0x0CBC + volatile u32 Fill12[0x0CD0/4 - 0x0CC0/4]; //GAP 0x0CC0 - 0x0CD0 3DRegisters */ - volatile unsigned long Fill7[16]; /* 0x0c94 - 0x0cd0 */ + volatile u32 Fill7[16]; /* 0x0c94 - 0x0cd0 */ - volatile unsigned long SDRAMAddrSign; /* 0x0CD4 */ - volatile unsigned long SDRAMDataSign; /* 0x0CD8 */ - volatile unsigned long SDRAMSignConf; /* 0x0CDC */ + volatile u32 SDRAMAddrSign; /* 0x0CD4 */ + volatile u32 SDRAMDataSign; /* 0x0CD8 */ + volatile u32 SDRAMSignConf; /* 0x0CDC */ /* DWFILL; //GAP 0x0CE0 */ - volatile unsigned long dwFill_2; - - volatile unsigned long ISPSignature; /* 0x0CE4 */ - - volatile unsigned long Fill8[454]; /*GAP 0x0CE8 - 0x13FC */ - - volatile unsigned long DACPrimAddress; /* 0x1400 */ - volatile unsigned long DACPrimSize; /* 0x1404 */ - volatile unsigned long DACCursorAddr; /* 0x1408 */ - volatile unsigned long DACCursorCtrl; /* 0x140C */ - volatile unsigned long DACOverlayAddr; /* 0x1410 */ - volatile unsigned long DACOverlayUAddr; /* 0x1414 */ - volatile unsigned long DACOverlayVAddr; /* 0x1418 */ - volatile unsigned long DACOverlaySize; /* 0x141C */ - volatile unsigned long DACOverlayVtDec; /* 0x1420 */ - - volatile unsigned long Fill9[9]; /* GAP 0x1424 - 0x1444 */ - - volatile unsigned long DACVerticalScal; /* 0x1448 */ - volatile unsigned long DACPixelFormat; /* 0x144C */ - volatile unsigned long DACHorizontalScal; /* 0x1450 */ - volatile unsigned long DACVidWinStart; /* 0x1454 */ - volatile unsigned long DACVidWinEnd; /* 0x1458 */ - volatile unsigned long DACBlendCtrl; /* 0x145C */ - volatile unsigned long DACHorTim1; /* 0x1460 */ - volatile unsigned long DACHorTim2; /* 0x1464 */ - volatile unsigned long DACHorTim3; /* 0x1468 */ - volatile unsigned long DACVerTim1; /* 0x146C */ - volatile unsigned long DACVerTim2; /* 0x1470 */ - volatile unsigned long DACVerTim3; /* 0x1474 */ - volatile unsigned long DACBorderColor; /* 0x1478 */ - volatile unsigned long DACSyncCtrl; /* 0x147C */ - volatile unsigned long DACStreamCtrl; /* 0x1480 */ - volatile unsigned long DACLUTAddress; /* 0x1484 */ - volatile unsigned long DACLUTData; /* 0x1488 */ - volatile unsigned long DACBurstCtrl; /* 0x148C */ - volatile unsigned long DACCrcTrigger; /* 0x1490 */ - volatile unsigned long DACCrcDone; /* 0x1494 */ - volatile unsigned long DACCrcResult1; /* 0x1498 */ - volatile unsigned long DACCrcResult2; /* 0x149C */ - volatile unsigned long DACLinecount; /* 0x14A0 */ - - volatile unsigned long Fill10[151]; /*GAP 0x14A4 - 0x16FC */ - - volatile unsigned long DigVidPortCtrl; /* 0x1700 */ - volatile unsigned long DigVidPortStat; /* 0x1704 */ + volatile u32 dwFill_2; + + volatile u32 ISPSignature; /* 0x0CE4 */ + + volatile u32 Fill8[454]; /*GAP 0x0CE8 - 0x13FC */ + + volatile u32 DACPrimAddress; /* 0x1400 */ + volatile u32 DACPrimSize; /* 0x1404 */ + volatile u32 DACCursorAddr; /* 0x1408 */ + volatile u32 DACCursorCtrl; /* 0x140C */ + volatile u32 DACOverlayAddr; /* 0x1410 */ + volatile u32 DACOverlayUAddr; /* 0x1414 */ + volatile u32 DACOverlayVAddr; /* 0x1418 */ + volatile u32 DACOverlaySize; /* 0x141C */ + volatile u32 DACOverlayVtDec; /* 0x1420 */ + + volatile u32 Fill9[9]; /* GAP 0x1424 - 0x1444 */ + + volatile u32 DACVerticalScal; /* 0x1448 */ + volatile u32 DACPixelFormat; /* 0x144C */ + volatile u32 DACHorizontalScal; /* 0x1450 */ + volatile u32 DACVidWinStart; /* 0x1454 */ + volatile u32 DACVidWinEnd; /* 0x1458 */ + volatile u32 DACBlendCtrl; /* 0x145C */ + volatile u32 DACHorTim1; /* 0x1460 */ + volatile u32 DACHorTim2; /* 0x1464 */ + volatile u32 DACHorTim3; /* 0x1468 */ + volatile u32 DACVerTim1; /* 0x146C */ + volatile u32 DACVerTim2; /* 0x1470 */ + volatile u32 DACVerTim3; /* 0x1474 */ + volatile u32 DACBorderColor; /* 0x1478 */ + volatile u32 DACSyncCtrl; /* 0x147C */ + volatile u32 DACStreamCtrl; /* 0x1480 */ + volatile u32 DACLUTAddress; /* 0x1484 */ + volatile u32 DACLUTData; /* 0x1488 */ + volatile u32 DACBurstCtrl; /* 0x148C */ + volatile u32 DACCrcTrigger; /* 0x1490 */ + volatile u32 DACCrcDone; /* 0x1494 */ + volatile u32 DACCrcResult1; /* 0x1498 */ + volatile u32 DACCrcResult2; /* 0x149C */ + volatile u32 DACLinecount; /* 0x14A0 */ + + volatile u32 Fill10[151]; /*GAP 0x14A4 - 0x16FC */ + + volatile u32 DigVidPortCtrl; /* 0x1700 */ + volatile u32 DigVidPortStat; /* 0x1704 */ /* - volatile unsigned long Fill11[0x1FFC/4 - 0x1708/4]; //GAP 0x1708 - 0x1FFC - volatile unsigned long Fill17[0x3000/4 - 0x2FFC/4]; //GAP 0x2000 - 0x2FFC ALUT + volatile u32 Fill11[0x1FFC/4 - 0x1708/4]; //GAP 0x1708 - 0x1FFC + volatile u32 Fill17[0x3000/4 - 0x2FFC/4]; //GAP 0x2000 - 0x2FFC ALUT */ - volatile unsigned long Fill11[1598]; + volatile u32 Fill11[1598]; /* DWFILL; //GAP 0x3000 ALUT 256MB offset */ - volatile unsigned long Fill_3; + volatile u32 Fill_3; } STG4000REG; -- cgit v0.10.2 From 93019734555f8df32239c5922fe2b770c0a08eaa Mon Sep 17 00:00:00 2001 From: Manuel Lauss Date: Sat, 24 Mar 2012 11:38:02 +0100 Subject: fbdev: fix au1*fb builds Commit 1c16697bf9d5b206cb0d2b905a54de5e077296be ("drivers/video/au*fb.c: use devm_ functions) introduced 2 build failures in the au1100fb and au1200fb drivers, fix them. Signed-off-by: Manuel Lauss Signed-off-by: Florian Tobias Schandinat diff --git a/drivers/video/au1100fb.c b/drivers/video/au1100fb.c index befcbd8..ffbce45 100644 --- a/drivers/video/au1100fb.c +++ b/drivers/video/au1100fb.c @@ -499,7 +499,8 @@ static int __devinit au1100fb_drv_probe(struct platform_device *dev) au1100fb_fix.mmio_start = regs_res->start; au1100fb_fix.mmio_len = resource_size(regs_res); - if (!devm_request_mem_region(au1100fb_fix.mmio_start, + if (!devm_request_mem_region(&dev->dev, + au1100fb_fix.mmio_start, au1100fb_fix.mmio_len, DRIVER_NAME)) { print_err("fail to lock memory region at 0x%08lx", @@ -516,7 +517,7 @@ static int __devinit au1100fb_drv_probe(struct platform_device *dev) fbdev->fb_len = fbdev->panel->xres * fbdev->panel->yres * (fbdev->panel->bpp >> 3) * AU1100FB_NBR_VIDEO_BUFFERS; - fbdev->fb_mem = dmam_alloc_coherent(&dev->dev, &dev->dev, + fbdev->fb_mem = dmam_alloc_coherent(&dev->dev, PAGE_ALIGN(fbdev->fb_len), &fbdev->fb_phys, GFP_KERNEL); if (!fbdev->fb_mem) { diff --git a/drivers/video/au1200fb.c b/drivers/video/au1200fb.c index 3e9a773..7ca79f0 100644 --- a/drivers/video/au1200fb.c +++ b/drivers/video/au1200fb.c @@ -1724,7 +1724,7 @@ static int __devinit au1200fb_drv_probe(struct platform_device *dev) /* Allocate the framebuffer to the maximum screen size */ fbdev->fb_len = (win->w[plane].xres * win->w[plane].yres * bpp) / 8; - fbdev->fb_mem = dmam_alloc_noncoherent(&dev->dev, &dev->dev, + fbdev->fb_mem = dmam_alloc_noncoherent(&dev->dev, PAGE_ALIGN(fbdev->fb_len), &fbdev->fb_phys, GFP_KERNEL); if (!fbdev->fb_mem) { -- cgit v0.10.2 From 70499329202a68f7485415e009e04213672f6811 Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Thu, 5 Apr 2012 15:48:25 -0700 Subject: ARM: S5PV210: fix unused LDO supply field from wm8994_pdata According to commit 719a4240("mfd: Remove unused LDO supply field from WM8994 pdata"), the LDO supply field should be removed from the initializer. Cc: Mark Brown Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-s5pv210/mach-aquila.c b/arch/arm/mach-s5pv210/mach-aquila.c index a9ea64e..48d018f 100644 --- a/arch/arm/mach-s5pv210/mach-aquila.c +++ b/arch/arm/mach-s5pv210/mach-aquila.c @@ -484,8 +484,8 @@ static struct wm8994_pdata wm8994_platform_data = { .gpio_defaults[8] = 0x0100, .gpio_defaults[9] = 0x0100, .gpio_defaults[10] = 0x0100, - .ldo[0] = { S5PV210_MP03(6), NULL, &wm8994_ldo1_data }, /* XM0FRNB_2 */ - .ldo[1] = { 0, NULL, &wm8994_ldo2_data }, + .ldo[0] = { S5PV210_MP03(6), &wm8994_ldo1_data }, /* XM0FRNB_2 */ + .ldo[1] = { 0, &wm8994_ldo2_data }, }; /* GPIO I2C PMIC */ diff --git a/arch/arm/mach-s5pv210/mach-goni.c b/arch/arm/mach-s5pv210/mach-goni.c index 2cf5ed7..a8933de 100644 --- a/arch/arm/mach-s5pv210/mach-goni.c +++ b/arch/arm/mach-s5pv210/mach-goni.c @@ -674,8 +674,8 @@ static struct wm8994_pdata wm8994_platform_data = { .gpio_defaults[8] = 0x0100, .gpio_defaults[9] = 0x0100, .gpio_defaults[10] = 0x0100, - .ldo[0] = { S5PV210_MP03(6), NULL, &wm8994_ldo1_data }, /* XM0FRNB_2 */ - .ldo[1] = { 0, NULL, &wm8994_ldo2_data }, + .ldo[0] = { S5PV210_MP03(6), &wm8994_ldo1_data }, /* XM0FRNB_2 */ + .ldo[1] = { 0, &wm8994_ldo2_data }, }; /* GPIO I2C PMIC */ -- cgit v0.10.2 From 0d923490f7dd5d96bc894a09a178117442b8795b Mon Sep 17 00:00:00 2001 From: Tushar Behera Date: Thu, 5 Apr 2012 16:08:25 -0700 Subject: ARM: EXYNOS: Add missing definition for IRQ_I2S0 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This fixes following build error when sound support is selected on EXYNOS4 platform. sound/soc/samsung/idma.c: In function ‘idma_close’: sound/soc/samsung/idma.c:327:11: error: ‘IRQ_I2S0’ undeclared (first use in this function) Signed-off-by: Tushar Behera Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-exynos/include/mach/irqs.h b/arch/arm/mach-exynos/include/mach/irqs.h index 9bee853..591e785 100644 --- a/arch/arm/mach-exynos/include/mach/irqs.h +++ b/arch/arm/mach-exynos/include/mach/irqs.h @@ -212,6 +212,8 @@ #define IRQ_MFC EXYNOS4_IRQ_MFC #define IRQ_SDO EXYNOS4_IRQ_SDO +#define IRQ_I2S0 EXYNOS4_IRQ_I2S0 + #define IRQ_ADC EXYNOS4_IRQ_ADC0 #define IRQ_TC EXYNOS4_IRQ_PEN0 -- cgit v0.10.2 From 32db797f10d465365a52d269c0b313b6b702e711 Mon Sep 17 00:00:00 2001 From: Jonghwan Choi Date: Thu, 5 Apr 2012 22:31:31 -0700 Subject: ARM: EXYNOS: Fix compile error in exynos5250-cpufreq.c This patch is omitted in v2 patch of Jaecheol Lee. drivers/cpufreq/exynos5250-cpufreq.c: In function 'set_clkdiv': drivers/cpufreq/exynos5250-cpufreq.c:144: error: 'EXYNOS5_CLKDIV_STATCPU0' undeclared (first use in this function) drivers/cpufreq/exynos5250-cpufreq.c:144: error: (Each undeclared identifier is reported only once drivers/cpufreq/exynos5250-cpufreq.c:144: error: for each function it appears in.) drivers/cpufreq/exynos5250-cpufreq.c:150: error: 'EXYNOS5_CLKDIV_CPU1' undeclared (first use in this function) drivers/cpufreq/exynos5250-cpufreq.c:152: error: 'EXYNOS5_CLKDIV_STATCPU1' undeclared (first use in this function) drivers/cpufreq/exynos5250-cpufreq.c: In function 'set_apll': drivers/cpufreq/exynos5250-cpufreq.c:166: error: 'EXYNOS5_CLKMUX_STATCPU' undeclared (first use in this function) drivers/cpufreq/exynos5250-cpufreq.c:173: error: 'EXYNOS5_APLL_LOCK' undeclared (first use in this function) drivers/cpufreq/exynos5250-cpufreq.c: In function 'exynos5250_cpufreq_init': drivers/cpufreq/exynos5250-cpufreq.c:312: error: 'EXYNOS5_CLKDIV_CPU1' undeclared (first use in this function) Cc: Jaecheol Lee Signed-off-by: Jonghwan Choi Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-exynos/include/mach/regs-clock.h b/arch/arm/mach-exynos/include/mach/regs-clock.h index e141c1f..d9578a5 100644 --- a/arch/arm/mach-exynos/include/mach/regs-clock.h +++ b/arch/arm/mach-exynos/include/mach/regs-clock.h @@ -255,9 +255,15 @@ /* For EXYNOS5250 */ +#define EXYNOS5_APLL_LOCK EXYNOS_CLKREG(0x00000) #define EXYNOS5_APLL_CON0 EXYNOS_CLKREG(0x00100) #define EXYNOS5_CLKSRC_CPU EXYNOS_CLKREG(0x00200) +#define EXYNOS5_CLKMUX_STATCPU EXYNOS_CLKREG(0x00400) #define EXYNOS5_CLKDIV_CPU0 EXYNOS_CLKREG(0x00500) +#define EXYNOS5_CLKDIV_CPU1 EXYNOS_CLKREG(0x00504) +#define EXYNOS5_CLKDIV_STATCPU0 EXYNOS_CLKREG(0x00600) +#define EXYNOS5_CLKDIV_STATCPU1 EXYNOS_CLKREG(0x00604) + #define EXYNOS5_MPLL_CON0 EXYNOS_CLKREG(0x04100) #define EXYNOS5_CLKSRC_CORE1 EXYNOS_CLKREG(0x04204) -- cgit v0.10.2 From c65390f4dd49755863f6d772ec538ee4757c08d7 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 9 Apr 2012 01:36:28 -0400 Subject: fix breakage in mtdchar_open(), sanitize failure exits simple_release_fs() should be only done on failure there. Signed-off-by: Al Viro diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index 94eb05b..58fc65f 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -106,16 +106,14 @@ static int mtdchar_open(struct inode *inode, struct file *file) } if (mtd->type == MTD_ABSENT) { - put_mtd_device(mtd); ret = -ENODEV; - goto out; + goto out1; } mtd_ino = iget_locked(mnt->mnt_sb, devnum); if (!mtd_ino) { - put_mtd_device(mtd); ret = -ENOMEM; - goto out; + goto out1; } if (mtd_ino->i_state & I_NEW) { mtd_ino->i_private = mtd; @@ -127,23 +125,25 @@ static int mtdchar_open(struct inode *inode, struct file *file) /* You can't open it RW if it's not a writeable device */ if ((file->f_mode & FMODE_WRITE) && !(mtd->flags & MTD_WRITEABLE)) { - iput(mtd_ino); - put_mtd_device(mtd); ret = -EACCES; - goto out; + goto out2; } mfi = kzalloc(sizeof(*mfi), GFP_KERNEL); if (!mfi) { - iput(mtd_ino); - put_mtd_device(mtd); ret = -ENOMEM; - goto out; + goto out2; } mfi->ino = mtd_ino; mfi->mtd = mtd; file->private_data = mfi; + mutex_unlock(&mtd_mutex); + return 0; +out2: + iput(mtd_ino); +out1: + put_mtd_device(mtd); out: mutex_unlock(&mtd_mutex); simple_release_fs(&mnt, &count); -- cgit v0.10.2 From 640946f20390e492694f9d7470656f2262385951 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 2 Apr 2012 19:22:25 -0400 Subject: dentry leak in simple_fill_super() failure exit d_genocide() does _not_ evict dentries; it just removes extra ref pinning each of those. Normally it's followed by shrinking the tree (it's done just before generic_shutdown_super() by kill_litter_super()), but in case of simple_fill_super() nothing of that kind will follow. Just do shrink_dcache_parent() manually. Signed-off-by: Al Viro diff --git a/fs/libfs.c b/fs/libfs.c index 358094f..18d08f5 100644 --- a/fs/libfs.c +++ b/fs/libfs.c @@ -529,6 +529,7 @@ int simple_fill_super(struct super_block *s, unsigned long magic, return 0; out: d_genocide(root); + shrink_dcache_parent(root); dput(root); return -ENOMEM; } -- cgit v0.10.2 From b1349f2536efcb592927ab6f8687c36c3c124f6b Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 2 Apr 2012 19:02:48 -0400 Subject: typo fix in Documentation/filesystems/vfs.txt Signed-off-by: Al Viro diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt index e916e3d..0d04920 100644 --- a/Documentation/filesystems/vfs.txt +++ b/Documentation/filesystems/vfs.txt @@ -114,7 +114,7 @@ members are defined: struct file_system_type { const char *name; int fs_flags; - struct dentry (*mount) (struct file_system_type *, int, + struct dentry *(*mount) (struct file_system_type *, int, const char *, void *); void (*kill_sb) (struct super_block *); struct module *owner; -- cgit v0.10.2 From 45038367c271f83b649b16551bf2d8174b203cb9 Mon Sep 17 00:00:00 2001 From: Asai Thambi S P Date: Mon, 9 Apr 2012 08:35:38 +0200 Subject: mtip32xx: Add new bitwise flag 'dd_flag' * Merged the following flags into one variable 'dd_flag': * drv_cleanup_done * resumeflag * Added the following flags into 'dd_flag' * remove pending * init done * Removed 'ftlrebuildflag' (similar flag is already part of mti_port->flags) Signed-off-by: Asai Thambi S P Signed-off-by: Jens Axboe diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index c37073d..34b395d 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -36,6 +36,7 @@ #include #include #include <../drivers/ata/ahci.h> +#include #include "mtip32xx.h" #define HW_CMD_SLOT_SZ (MTIP_MAX_COMMAND_SLOTS * 32) @@ -44,6 +45,7 @@ #define HW_PORT_PRIV_DMA_SZ \ (HW_CMD_SLOT_SZ + HW_CMD_TBL_AR_SZ + AHCI_RX_FIS_SZ) +#define HOST_CAP_NZDMA (1 << 19) #define HOST_HSORG 0xFC #define HSORG_DISABLE_SLOTGRP_INTR (1<<24) #define HSORG_DISABLE_SLOTGRP_PXIS (1<<16) @@ -139,6 +141,12 @@ static void mtip_command_cleanup(struct driver_data *dd) int group = 0, commandslot = 0, commandindex = 0; struct mtip_cmd *command; struct mtip_port *port = dd->port; + static int in_progress; + + if (in_progress) + return; + + in_progress = 1; for (group = 0; group < 4; group++) { for (commandslot = 0; commandslot < 32; commandslot++) { @@ -165,7 +173,8 @@ static void mtip_command_cleanup(struct driver_data *dd) up(&port->cmd_slot); - atomic_set(&dd->drv_cleanup_done, true); + set_bit(MTIP_DD_FLAG_CLEANUP_BIT, &dd->dd_flag); + in_progress = 0; } /* @@ -262,6 +271,9 @@ static int hba_reset_nosleep(struct driver_data *dd) && time_before(jiffies, timeout)) mdelay(1); + if (test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &dd->dd_flag)) + return -1; + if (readl(dd->mmio + HOST_CTL) & HOST_RESET) return -1; @@ -451,6 +463,9 @@ static void mtip_restart_port(struct mtip_port *port) && time_before(jiffies, timeout)) ; + if (test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &port->dd->dd_flag)) + return; + /* * Chip quirk: escalate to hba reset if * PxCMD.CR not clear after 500 ms @@ -479,6 +494,9 @@ static void mtip_restart_port(struct mtip_port *port) while (time_before(jiffies, timeout)) ; + if (test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &port->dd->dd_flag)) + return; + /* Clear PxSCTL.DET */ writel(readl(port->mmio + PORT_SCR_CTL) & ~1, port->mmio + PORT_SCR_CTL); @@ -490,6 +508,9 @@ static void mtip_restart_port(struct mtip_port *port) && time_before(jiffies, timeout)) ; + if (test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &port->dd->dd_flag)) + return; + if ((readl(port->mmio + PORT_SCR_STAT) & 0x01) == 0) dev_warn(&port->dd->pdev->dev, "COM reset failed\n"); @@ -520,7 +541,7 @@ static void mtip_timeout_function(unsigned long int data) if (unlikely(!port)) return; - if (atomic_read(&port->dd->resumeflag) == true) { + if (test_bit(MTIP_DD_FLAG_RESUME_BIT, &port->dd->dd_flag)) { mod_timer(&port->cmd_timer, jiffies + msecs_to_jiffies(30000)); return; @@ -970,6 +991,9 @@ static inline irqreturn_t mtip_handle_irq(struct driver_data *data) /* don't proceed further */ return IRQ_HANDLED; } + if (test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, + &dd->dd_flag)) + return rv; mtip_process_errors(dd, port_stat & PORT_IRQ_ERR); } @@ -1040,6 +1064,9 @@ static int mtip_quiesce_io(struct mtip_port *port, unsigned long timeout) msleep(20); continue; /* svc thd is actively issuing commands */ } + if (test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, + &port->dd->dd_flag)) + return -EFAULT; /* * Ignore s_active bit 0 of array element 0. * This bit will always be set @@ -1161,6 +1188,12 @@ static int mtip_exec_internal_command(struct mtip_port *port, "Internal command did not complete [%d] " "within timeout of %lu ms\n", atomic, timeout); + if (mtip_check_surprise_removal(port->dd->pdev) || + test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, + &port->dd->dd_flag)) { + rv = -ENXIO; + goto exec_ic_exit; + } rv = -EAGAIN; } @@ -1168,6 +1201,15 @@ static int mtip_exec_internal_command(struct mtip_port *port, & (1 << MTIP_TAG_INTERNAL)) { dev_warn(&port->dd->pdev->dev, "Retiring internal command but CI is 1.\n"); + if (test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, + &port->dd->dd_flag)) { + hba_reset_nosleep(port->dd); + rv = -ENXIO; + } else { + mtip_restart_port(port); + rv = -EAGAIN; + } + goto exec_ic_exit; } } else { @@ -1177,8 +1219,14 @@ static int mtip_exec_internal_command(struct mtip_port *port, while ((readl( port->cmd_issue[MTIP_TAG_INTERNAL]) & (1 << MTIP_TAG_INTERNAL)) - && time_before(jiffies, timeout)) - ; + && time_before(jiffies, timeout)) { + if (mtip_check_surprise_removal(port->dd->pdev) || + test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, + &port->dd->dd_flag)) { + rv = -ENXIO; + goto exec_ic_exit; + } + } if (readl(port->cmd_issue[MTIP_TAG_INTERNAL]) & (1 << MTIP_TAG_INTERNAL)) { @@ -1186,9 +1234,17 @@ static int mtip_exec_internal_command(struct mtip_port *port, "Internal command did not complete [%d]\n", atomic); rv = -EAGAIN; + if (test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, + &port->dd->dd_flag)) { + hba_reset_nosleep(port->dd); + rv = -ENXIO; + } else { + mtip_restart_port(port); + rv = -EAGAIN; + } } } - +exec_ic_exit: /* Clear the allocated and active bits for the internal command. */ atomic_set(&int_cmd->active, 0); release_slot(port, MTIP_TAG_INTERNAL); @@ -1242,6 +1298,9 @@ static int mtip_get_identify(struct mtip_port *port, void __user *user_buffer) int rv = 0; struct host_to_dev_fis fis; + if (test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &port->dd->dd_flag)) + return -EFAULT; + /* Build the FIS. */ memset(&fis, 0, sizeof(struct host_to_dev_fis)); fis.type = 0x27; @@ -1507,9 +1566,7 @@ static int exec_drive_task(struct mtip_port *port, u8 *command) fis.device = command[6] & ~0x10; /* Clear the dev bit*/ - dbg_printk(MTIP_DRV_NAME "%s: User Command: cmd %x, feat %x, " - "nsect %x, sect %x, lcyl %x, " - "hcyl %x, sel %x\n", + dbg_printk(MTIP_DRV_NAME "%s: User Command: cmd %x, feat %x, nsect %x, sect %x, lcyl %x, hcyl %x, sel %x\n", __func__, command[0], command[1], @@ -1536,8 +1593,7 @@ static int exec_drive_task(struct mtip_port *port, u8 *command) command[4] = reply->cyl_low; command[5] = reply->cyl_hi; - dbg_printk(MTIP_DRV_NAME "%s: Completion Status: stat %x, " - "err %x , cyl_lo %x cyl_hi %x\n", + dbg_printk(MTIP_DRV_NAME "%s: Completion Status: stat %x, err %x , cyl_lo %x cyl_hi %x\n", __func__, command[0], command[1], @@ -2082,14 +2138,10 @@ static void mtip_hw_submit_io(struct driver_data *dd, sector_t start, struct host_to_dev_fis *fis; struct mtip_port *port = dd->port; struct mtip_cmd *command = &port->commands[tag]; + int dma_dir = (dir == READ) ? DMA_FROM_DEVICE : DMA_TO_DEVICE; /* Map the scatter list for DMA access */ - if (dir == READ) - nents = dma_map_sg(&dd->pdev->dev, command->sg, - nents, DMA_FROM_DEVICE); - else - nents = dma_map_sg(&dd->pdev->dev, command->sg, - nents, DMA_TO_DEVICE); + nents = dma_map_sg(&dd->pdev->dev, command->sg, nents, dma_dir); command->scatter_ents = nents; @@ -2129,7 +2181,7 @@ static void mtip_hw_submit_io(struct driver_data *dd, sector_t start, */ command->comp_data = dd; command->comp_func = mtip_async_complete; - command->direction = (dir == READ ? DMA_FROM_DEVICE : DMA_TO_DEVICE); + command->direction = dma_dir; /* * Set the completion function and data for the command passed @@ -2193,6 +2245,10 @@ static struct scatterlist *mtip_hw_get_scatterlist(struct driver_data *dd, down(&dd->port->cmd_slot); *tag = get_slot(dd->port); + if (unlikely(test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &dd->dd_flag))) { + up(&dd->port->cmd_slot); + return NULL; + } if (unlikely(*tag < 0)) return NULL; @@ -2209,7 +2265,7 @@ static struct scatterlist *mtip_hw_get_scatterlist(struct driver_data *dd, * return value * The size, in bytes, of the data copied into buf. */ -static ssize_t hw_show_registers(struct device *dev, +static ssize_t mtip_hw_show_registers(struct device *dev, struct device_attribute *attr, char *buf) { @@ -2255,7 +2311,7 @@ static ssize_t hw_show_registers(struct device *dev, return size; } -static DEVICE_ATTR(registers, S_IRUGO, hw_show_registers, NULL); +static DEVICE_ATTR(registers, S_IRUGO, mtip_hw_show_registers, NULL); /* * Create the sysfs related attributes. @@ -2386,10 +2442,12 @@ static int mtip_ftl_rebuild_poll(struct driver_data *dd) "FTL rebuild in progress. Polling for completion.\n"); start = jiffies; - dd->ftlrebuildflag = 1; timeout = jiffies + msecs_to_jiffies(MTIP_FTL_REBUILD_TIMEOUT_MS); do { + if (unlikely(test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, + &dd->dd_flag))) + return -EFAULT; if (mtip_check_surprise_removal(dd->pdev)) return -EFAULT; @@ -2410,22 +2468,17 @@ static int mtip_ftl_rebuild_poll(struct driver_data *dd) dev_warn(&dd->pdev->dev, "FTL rebuild complete (%d secs).\n", jiffies_to_msecs(jiffies - start) / 1000); - dd->ftlrebuildflag = 0; mtip_block_initialize(dd); - break; + return 0; } ssleep(10); } while (time_before(jiffies, timeout)); /* Check for timeout */ - if (dd->ftlrebuildflag) { - dev_err(&dd->pdev->dev, + dev_err(&dd->pdev->dev, "Timed out waiting for FTL rebuild to complete (%d secs).\n", jiffies_to_msecs(jiffies - start) / 1000); - return -EFAULT; - } - - return 0; + return -EFAULT; } /* @@ -2456,6 +2509,9 @@ static int mtip_service_thread(void *data) if (kthread_should_stop()) break; + if (unlikely(test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, + &dd->dd_flag))) + break; set_bit(MTIP_FLAG_SVC_THD_ACTIVE_BIT, &port->flags); if (test_bit(MTIP_FLAG_ISSUE_CMDS_BIT, &port->flags)) { slot = 1; @@ -2515,6 +2571,7 @@ static int mtip_hw_init(struct driver_data *dd) int i; int rv; unsigned int num_command_slots; + unsigned long timeout, timetaken; dd->mmio = pcim_iomap_table(dd->pdev)[MTIP_ABAR]; @@ -2625,14 +2682,43 @@ static int mtip_hw_init(struct driver_data *dd) dd->port->mmio + i*0x80 + PORT_SDBV; } - /* Reset the HBA. */ - if (mtip_hba_reset(dd) < 0) { - dev_err(&dd->pdev->dev, - "Card did not reset within timeout\n"); - rv = -EIO; + timetaken = jiffies; + timeout = jiffies + msecs_to_jiffies(30000); + while (((readl(dd->port->mmio + PORT_SCR_STAT) & 0x0F) != 0x03) && + time_before(jiffies, timeout)) { + mdelay(100); + } + if (unlikely(mtip_check_surprise_removal(dd->pdev))) { + timetaken = jiffies - timetaken; + dev_warn(&dd->pdev->dev, + "Surprise removal detected at %u ms\n", + jiffies_to_msecs(timetaken)); + rv = -ENODEV; + goto out2 ; + } + if (unlikely(test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &dd->dd_flag))) { + timetaken = jiffies - timetaken; + dev_warn(&dd->pdev->dev, + "Removal detected at %u ms\n", + jiffies_to_msecs(timetaken)); + rv = -EFAULT; goto out2; } + /* Conditionally reset the HBA. */ + if (!(readl(dd->mmio + HOST_CAP) & HOST_CAP_NZDMA)) { + if (mtip_hba_reset(dd) < 0) { + dev_err(&dd->pdev->dev, + "Card did not reset within timeout\n"); + rv = -EIO; + goto out2; + } + } else { + /* Clear any pending interrupts on the HBA */ + writel(readl(dd->mmio + HOST_IRQ_STAT), + dd->mmio + HOST_IRQ_STAT); + } + mtip_init_port(dd->port); mtip_start_port(dd->port); @@ -2662,6 +2748,12 @@ static int mtip_hw_init(struct driver_data *dd) mod_timer(&dd->port->cmd_timer, jiffies + msecs_to_jiffies(MTIP_TIMEOUT_CHECK_PERIOD)); + + if (test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &dd->dd_flag)) { + rv = -EFAULT; + goto out3; + } + if (mtip_get_identify(dd->port, NULL) < 0) { rv = -EFAULT; goto out3; @@ -2714,9 +2806,12 @@ static int mtip_hw_exit(struct driver_data *dd) * Send standby immediate (E0h) to the drive so that it * saves its state. */ - if (atomic_read(&dd->drv_cleanup_done) != true) { + if (!test_bit(MTIP_DD_FLAG_CLEANUP_BIT, &dd->dd_flag)) { - mtip_standby_immediate(dd->port); + if (test_bit(MTIP_FLAG_REBUILD_BIT, &dd->dd_flag)) + if (mtip_standby_immediate(dd->port)) + dev_warn(&dd->pdev->dev, + "STANDBY IMMEDIATE failed\n"); /* de-initialize the port. */ mtip_deinit_port(dd->port); @@ -2894,6 +2989,9 @@ static int mtip_block_ioctl(struct block_device *dev, if (!dd) return -ENOTTY; + if (unlikely(test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &dd->dd_flag))) + return -ENOTTY; + switch (cmd) { case BLKFLSBUF: return -ENOTTY; @@ -2929,6 +3027,9 @@ static int mtip_block_compat_ioctl(struct block_device *dev, if (!dd) return -ENOTTY; + if (unlikely(test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &dd->dd_flag))) + return -ENOTTY; + switch (cmd) { case BLKFLSBUF: return -ENOTTY; @@ -3051,6 +3152,11 @@ static void mtip_make_request(struct request_queue *queue, struct bio *bio) int nents = 0; int tag = 0; + if (test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &dd->dd_flag)) { + bio_endio(bio, -ENXIO); + return; + } + if (unlikely(!bio_has_data(bio))) { blk_queue_flush(queue, 0); bio_endio(bio, 0); @@ -3063,7 +3169,7 @@ static void mtip_make_request(struct request_queue *queue, struct bio *bio) if (unlikely((bio)->bi_vcnt > MTIP_MAX_SG)) { dev_warn(&dd->pdev->dev, - "Maximum number of SGL entries exceeded"); + "Maximum number of SGL entries exceeded\n"); bio_io_error(bio); mtip_hw_release_scatterlist(dd, tag); return; @@ -3212,8 +3318,10 @@ skip_create_disk: kobject_put(kobj); } - if (dd->mtip_svc_handler) + if (dd->mtip_svc_handler) { + set_bit(MTIP_DD_FLAG_INIT_DONE_BIT, &dd->dd_flag); return rv; /* service thread created for handling rebuild */ + } start_service_thread: sprintf(thd_name, "mtip_svc_thd_%02d", index); @@ -3228,6 +3336,9 @@ start_service_thread: goto kthread_run_error; } + if (wait_for_rebuild == MTIP_FTL_REBUILD_MAGIC) + rv = wait_for_rebuild; + return rv; kthread_run_error: @@ -3274,10 +3385,12 @@ static int mtip_block_remove(struct driver_data *dd) } /* Clean up the sysfs attributes managed by the protocol layer. */ - kobj = kobject_get(&disk_to_dev(dd->disk)->kobj); - if (kobj) { - mtip_hw_sysfs_exit(dd, kobj); - kobject_put(kobj); + if (test_bit(MTIP_DD_FLAG_INIT_DONE_BIT, &dd->dd_flag)) { + kobj = kobject_get(&disk_to_dev(dd->disk)->kobj); + if (kobj) { + mtip_hw_sysfs_exit(dd, kobj); + kobject_put(kobj); + } } /* @@ -3361,8 +3474,6 @@ static int mtip_pci_probe(struct pci_dev *pdev, return -ENOMEM; } - atomic_set(&dd->resumeflag, false); - /* Attach the private data to this PCI device. */ pci_set_drvdata(pdev, dd); @@ -3419,7 +3530,8 @@ static int mtip_pci_probe(struct pci_dev *pdev, * instance number. */ instance++; - + if (rv != MTIP_FTL_REBUILD_MAGIC) + set_bit(MTIP_DD_FLAG_INIT_DONE_BIT, &dd->dd_flag); goto done; block_initialize_err: @@ -3433,9 +3545,6 @@ iomap_err: pci_set_drvdata(pdev, NULL); return rv; done: - /* Set the atomic variable as 0 */ - atomic_set(&dd->drv_cleanup_done, false); - return rv; } @@ -3451,8 +3560,10 @@ static void mtip_pci_remove(struct pci_dev *pdev) struct driver_data *dd = pci_get_drvdata(pdev); int counter = 0; + set_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &dd->dd_flag); + if (mtip_check_surprise_removal(pdev)) { - while (atomic_read(&dd->drv_cleanup_done) == false) { + while (!test_bit(MTIP_DD_FLAG_CLEANUP_BIT, &dd->dd_flag)) { counter++; msleep(20); if (counter == 10) { @@ -3490,7 +3601,7 @@ static int mtip_pci_suspend(struct pci_dev *pdev, pm_message_t mesg) return -EFAULT; } - atomic_set(&dd->resumeflag, true); + set_bit(MTIP_DD_FLAG_RESUME_BIT, &dd->dd_flag); /* Disable ports & interrupts then send standby immediate */ rv = mtip_block_suspend(dd); @@ -3556,7 +3667,7 @@ static int mtip_pci_resume(struct pci_dev *pdev) dev_err(&pdev->dev, "Unable to resume\n"); err: - atomic_set(&dd->resumeflag, false); + clear_bit(MTIP_DD_FLAG_RESUME_BIT, &dd->dd_flag); return rv; } diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h index e0554a8..f4e46cc 100644 --- a/drivers/block/mtip32xx/mtip32xx.h +++ b/drivers/block/mtip32xx/mtip32xx.h @@ -121,6 +121,12 @@ #define MTIP_FLAG_REBUILD_BIT 5 #define MTIP_FLAG_SVC_THD_SHOULD_STOP_BIT 8 +/* below are bit numbers in 'dd_flag' defined in driver_data */ +#define MTIP_DD_FLAG_REMOVE_PENDING_BIT 1 +#define MTIP_DD_FLAG_RESUME_BIT 2 +#define MTIP_DD_FLAG_CLEANUP_BIT 3 +#define MTIP_DD_FLAG_INIT_DONE_BIT 4 + /* Register Frame Information Structure (FIS), host to device. */ struct host_to_dev_fis { /* @@ -404,13 +410,9 @@ struct driver_data { unsigned slot_groups; /* number of slot groups the product supports */ - atomic_t drv_cleanup_done; /* Atomic variable for SRSI */ - unsigned long index; /* Index to determine the disk name */ - unsigned int ftlrebuildflag; /* FTL rebuild flag */ - - atomic_t resumeflag; /* Atomic variable to track suspend/resume */ + unsigned long dd_flag; /* NOTE: use atomic bit operations on this */ struct task_struct *mtip_svc_handler; /* task_struct of svc thd */ }; -- cgit v0.10.2 From dad40f16ff683a10f4f2bea55a0b9fd86d3db58e Mon Sep 17 00:00:00 2001 From: Asai Thambi S P Date: Mon, 9 Apr 2012 08:35:38 +0200 Subject: mtip32xx: make setting comp_time as common Moved setting completion time into mtip_issue_ncq_command() Signed-off-by: Asai Thambi S P Signed-off-by: Jens Axboe diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index 34b395d..aaa8245 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -306,6 +306,10 @@ static inline void mtip_issue_ncq_command(struct mtip_port *port, int tag) port->cmd_issue[MTIP_TAG_INDEX(tag)]); spin_unlock_irqrestore(&port->cmd_issue_lock, flags); + + /* Set the command's timeout value.*/ + port->commands[tag].comp_time = jiffies + msecs_to_jiffies( + MTIP_NCQ_COMMAND_TIMEOUT_MS); } /* @@ -824,10 +828,6 @@ static void mtip_handle_tfe(struct driver_data *dd) set_bit(tag, tagaccum); - /* Update the timeout value. */ - port->commands[tag].comp_time = - jiffies + msecs_to_jiffies( - MTIP_NCQ_COMMAND_TIMEOUT_MS); /* Re-issue the command. */ mtip_issue_ncq_command(port, tag); @@ -2204,9 +2204,7 @@ static void mtip_hw_submit_io(struct driver_data *dd, sector_t start, /* Issue the command to the hardware */ mtip_issue_ncq_command(port, tag); - /* Set the command's timeout value.*/ - port->commands[tag].comp_time = jiffies + msecs_to_jiffies( - MTIP_NCQ_COMMAND_TIMEOUT_MS); + return; } /* @@ -2538,10 +2536,6 @@ static int mtip_service_thread(void *data) /* Issue the command to the hardware */ mtip_issue_ncq_command(port, slot); - /* Set the command's timeout value.*/ - port->commands[slot].comp_time = jiffies + - msecs_to_jiffies(MTIP_NCQ_COMMAND_TIMEOUT_MS); - clear_bit(slot, port->cmds_to_issue); } -- cgit v0.10.2 From f65872177d838a33e90cbae25625b9bec05134ca Mon Sep 17 00:00:00 2001 From: Asai Thambi S P Date: Mon, 9 Apr 2012 08:35:38 +0200 Subject: mtip32xx: Add new sysfs entry 'status' * Add support for detecting the following device status - write protect - over temp (thermal shutdown) * Add new sysfs entry 'status', possible values - online, write_protect, thermal_shutdown * Add new file 'sysfs-block-rssd' to document ABI (Reported-by: Greg Kroah-Hartman) Signed-off-by: Asai Thambi S P Signed-off-by: Jens Axboe diff --git a/Documentation/ABI/testing/sysfs-block-rssd b/Documentation/ABI/testing/sysfs-block-rssd new file mode 100644 index 0000000..d535757 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-block-rssd @@ -0,0 +1,18 @@ +What: /sys/block/rssd*/registers +Date: March 2012 +KernelVersion: 3.3 +Contact: Asai Thambi S P +Description: This is a read-only file. Dumps below driver information and + hardware registers. + - S ACTive + - Command Issue + - Allocated + - Completed + - PORT IRQ STAT + - HOST IRQ STAT + +What: /sys/block/rssd*/status +Date: April 2012 +KernelVersion: 3.4 +Contact: Asai Thambi S P +Description: This is a read-only file. Indicates the status of the device. diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index aaa8245..79fdb063 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -725,6 +725,10 @@ static void print_tags(struct driver_data *dd, dev_info(&dd->pdev->dev, "%s [%i tags]\n", msg, count); } +static int mtip_read_log_page(struct mtip_port *port, u8 page, u16 *buffer, + dma_addr_t buffer_dma, unsigned int sectors); +static int mtip_get_smart_attr(struct mtip_port *port, unsigned int id, + struct smart_attr *attrib); /* * Handle an error. * @@ -735,12 +739,15 @@ static void print_tags(struct driver_data *dd, */ static void mtip_handle_tfe(struct driver_data *dd) { - int group, tag, bit, reissue; + int group, tag, bit, reissue, rv; struct mtip_port *port; - struct mtip_cmd *command; + struct mtip_cmd *cmd; u32 completed; struct host_to_dev_fis *fis; unsigned long tagaccum[SLOTBITS_IN_LONGS]; + unsigned char *buf; + char *fail_reason = NULL; + int fail_all_ncq_write = 0, fail_all_ncq_cmds = 0; dev_warn(&dd->pdev->dev, "Taskfile error\n"); @@ -772,13 +779,13 @@ static void mtip_handle_tfe(struct driver_data *dd) if (tag == MTIP_TAG_INTERNAL) continue; - command = &port->commands[tag]; - if (likely(command->comp_func)) { + cmd = &port->commands[tag]; + if (likely(cmd->comp_func)) { set_bit(tag, tagaccum); - atomic_set(&port->commands[tag].active, 0); - command->comp_func(port, + atomic_set(&cmd->active, 0); + cmd->comp_func(port, tag, - command->comp_data, + cmd->comp_data, 0); } else { dev_err(&port->dd->pdev->dev, @@ -798,6 +805,38 @@ static void mtip_handle_tfe(struct driver_data *dd) mdelay(20); mtip_restart_port(port); + /* Trying to determine the cause of the error */ + rv = mtip_read_log_page(dd->port, ATA_LOG_SATA_NCQ, + dd->port->log_buf, + dd->port->log_buf_dma, 1); + if (rv) { + dev_warn(&dd->pdev->dev, + "Error in READ LOG EXT (10h) command\n"); + /* non-critical error, don't fail the load */ + } else { + buf = (unsigned char *)dd->port->log_buf; + if (buf[259] & 0x1) { + dev_info(&dd->pdev->dev, + "Write protect bit is set.\n"); + set_bit(MTIP_DD_FLAG_WRITE_PROTECT_BIT, &dd->dd_flag); + fail_all_ncq_write = 1; + fail_reason = "write protect"; + } + if (buf[288] == 0xF7) { + dev_info(&dd->pdev->dev, + "Exceeded Tmax, drive in thermal shutdown.\n"); + set_bit(MTIP_DD_FLAG_OVER_TEMP_BIT, &dd->dd_flag); + fail_all_ncq_cmds = 1; + fail_reason = "thermal shutdown"; + } + if (buf[288] == 0xBF) { + dev_info(&dd->pdev->dev, + "Drive indicates rebuild has failed.\n"); + fail_all_ncq_cmds = 1; + fail_reason = "rebuild failed"; + } + } + /* clear the tag accumulator */ memset(tagaccum, 0, SLOTBITS_IN_LONGS * sizeof(long)); @@ -806,25 +845,44 @@ static void mtip_handle_tfe(struct driver_data *dd) for (bit = 0; bit < 32; bit++) { reissue = 1; tag = (group << 5) + bit; + cmd = &port->commands[tag]; /* If the active bit is set re-issue the command */ - if (atomic_read(&port->commands[tag].active) == 0) + if (atomic_read(&cmd->active) == 0) continue; - fis = (struct host_to_dev_fis *) - port->commands[tag].command; + fis = (struct host_to_dev_fis *)cmd->command; /* Should re-issue? */ if (tag == MTIP_TAG_INTERNAL || fis->command == ATA_CMD_SET_FEATURES) reissue = 0; + else { + if (fail_all_ncq_cmds || + (fail_all_ncq_write && + fis->command == ATA_CMD_FPDMA_WRITE)) { + dev_warn(&dd->pdev->dev, + " Fail: %s w/tag %d [%s].\n", + fis->command == ATA_CMD_FPDMA_WRITE ? + "write" : "read", + tag, + fail_reason != NULL ? + fail_reason : "unknown"); + atomic_set(&cmd->active, 0); + if (cmd->comp_func) { + cmd->comp_func(port, tag, + cmd->comp_data, + -ENODATA); + } + continue; + } + } /* * First check if this command has * exceeded its retries. */ - if (reissue && - (port->commands[tag].retries-- > 0)) { + if (reissue && (cmd->retries-- > 0)) { set_bit(tag, tagaccum); @@ -837,13 +895,13 @@ static void mtip_handle_tfe(struct driver_data *dd) /* Retire a command that will not be reissued */ dev_warn(&port->dd->pdev->dev, "retiring tag %d\n", tag); - atomic_set(&port->commands[tag].active, 0); + atomic_set(&cmd->active, 0); - if (port->commands[tag].comp_func) - port->commands[tag].comp_func( + if (cmd->comp_func) + cmd->comp_func( port, tag, - port->commands[tag].comp_data, + cmd->comp_data, PORT_IRQ_TF_ERR); else dev_warn(&port->dd->pdev->dev, @@ -1374,6 +1432,7 @@ static int mtip_standby_immediate(struct mtip_port *port) { int rv; struct host_to_dev_fis fis; + unsigned long start; /* Build the FIS. */ memset(&fis, 0, sizeof(struct host_to_dev_fis)); @@ -1381,15 +1440,150 @@ static int mtip_standby_immediate(struct mtip_port *port) fis.opts = 1 << 7; fis.command = ATA_CMD_STANDBYNOW1; - /* Execute the command. Use a 15-second timeout for large drives. */ + start = jiffies; rv = mtip_exec_internal_command(port, &fis, 5, 0, 0, 0, - GFP_KERNEL, + GFP_ATOMIC, 15000); + dbg_printk(MTIP_DRV_NAME "Time taken to complete standby cmd: %d ms\n", + jiffies_to_msecs(jiffies - start)); + if (rv) + dev_warn(&port->dd->pdev->dev, + "STANDBY IMMEDIATE command failed.\n"); + + return rv; +} + +/* + * Issue a READ LOG EXT command to the device. + * + * @port pointer to the port structure. + * @page page number to fetch + * @buffer pointer to buffer + * @buffer_dma dma address corresponding to @buffer + * @sectors page length to fetch, in sectors + * + * return value + * @rv return value from mtip_exec_internal_command() + */ +static int mtip_read_log_page(struct mtip_port *port, u8 page, u16 *buffer, + dma_addr_t buffer_dma, unsigned int sectors) +{ + struct host_to_dev_fis fis; + + memset(&fis, 0, sizeof(struct host_to_dev_fis)); + fis.type = 0x27; + fis.opts = 1 << 7; + fis.command = ATA_CMD_READ_LOG_EXT; + fis.sect_count = sectors & 0xFF; + fis.sect_cnt_ex = (sectors >> 8) & 0xFF; + fis.lba_low = page; + fis.lba_mid = 0; + fis.device = ATA_DEVICE_OBS; + + memset(buffer, 0, sectors * ATA_SECT_SIZE); + + return mtip_exec_internal_command(port, + &fis, + 5, + buffer_dma, + sectors * ATA_SECT_SIZE, + 0, + GFP_ATOMIC, + MTIP_INTERNAL_COMMAND_TIMEOUT_MS); +} + +/* + * Issue a SMART READ DATA command to the device. + * + * @port pointer to the port structure. + * @buffer pointer to buffer + * @buffer_dma dma address corresponding to @buffer + * + * return value + * @rv return value from mtip_exec_internal_command() + */ +static int mtip_get_smart_data(struct mtip_port *port, u8 *buffer, + dma_addr_t buffer_dma) +{ + struct host_to_dev_fis fis; + + memset(&fis, 0, sizeof(struct host_to_dev_fis)); + fis.type = 0x27; + fis.opts = 1 << 7; + fis.command = ATA_CMD_SMART; + fis.features = 0xD0; + fis.sect_count = 1; + fis.lba_mid = 0x4F; + fis.lba_hi = 0xC2; + fis.device = ATA_DEVICE_OBS; + + return mtip_exec_internal_command(port, + &fis, + 5, + buffer_dma, + ATA_SECT_SIZE, + 0, + GFP_ATOMIC, + 15000); +} + +/* + * Get the value of a smart attribute + * + * @port pointer to the port structure + * @id attribute number + * @attrib pointer to return attrib information corresponding to @id + * + * return value + * -EINVAL NULL buffer passed or unsupported attribute @id. + * -EPERM Identify data not valid, SMART not supported or not enabled + */ +static int mtip_get_smart_attr(struct mtip_port *port, unsigned int id, + struct smart_attr *attrib) +{ + int rv, i; + struct smart_attr *pattr; + + if (!attrib) + return -EINVAL; + + if (!port->identify_valid) { + dev_warn(&port->dd->pdev->dev, "IDENTIFY DATA not valid\n"); + return -EPERM; + } + if (!(port->identify[82] & 0x1)) { + dev_warn(&port->dd->pdev->dev, "SMART not supported\n"); + return -EPERM; + } + if (!(port->identify[85] & 0x1)) { + dev_warn(&port->dd->pdev->dev, "SMART not enabled\n"); + return -EPERM; + } + + memset(port->smart_buf, 0, ATA_SECT_SIZE); + rv = mtip_get_smart_data(port, port->smart_buf, port->smart_buf_dma); + if (rv) { + dev_warn(&port->dd->pdev->dev, "Failed to ge SMART data\n"); + return rv; + } + + pattr = (struct smart_attr *)(port->smart_buf + 2); + for (i = 0; i < 29; i++, pattr++) + if (pattr->attr_id == id) { + memcpy(attrib, pattr, sizeof(struct smart_attr)); + break; + } + + if (i == 29) { + dev_warn(&port->dd->pdev->dev, + "Query for invalid SMART attribute ID\n"); + rv = -EINVAL; + } return rv; } @@ -2272,7 +2466,7 @@ static ssize_t mtip_hw_show_registers(struct device *dev, int size = 0; int n; - size += sprintf(&buf[size], "%s:\ns_active:\n", __func__); + size += sprintf(&buf[size], "S ACTive:\n"); for (n = 0; n < dd->slot_groups; n++) size += sprintf(&buf[size], "0x%08x\n", @@ -2296,20 +2490,39 @@ static ssize_t mtip_hw_show_registers(struct device *dev, group_allocated); } - size += sprintf(&buf[size], "completed:\n"); + size += sprintf(&buf[size], "Completed:\n"); for (n = 0; n < dd->slot_groups; n++) size += sprintf(&buf[size], "0x%08x\n", readl(dd->port->completed[n])); - size += sprintf(&buf[size], "PORT_IRQ_STAT 0x%08x\n", + size += sprintf(&buf[size], "PORT IRQ STAT : 0x%08x\n", readl(dd->port->mmio + PORT_IRQ_STAT)); - size += sprintf(&buf[size], "HOST_IRQ_STAT 0x%08x\n", + size += sprintf(&buf[size], "HOST IRQ STAT : 0x%08x\n", readl(dd->mmio + HOST_IRQ_STAT)); return size; } + +static ssize_t mtip_hw_show_status(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct driver_data *dd = dev_to_disk(dev)->private_data; + int size = 0; + + if (test_bit(MTIP_DD_FLAG_OVER_TEMP_BIT, &dd->dd_flag)) + size += sprintf(buf, "%s", "thermal_shutdown\n"); + else if (test_bit(MTIP_DD_FLAG_WRITE_PROTECT_BIT, &dd->dd_flag)) + size += sprintf(buf, "%s", "write_protect\n"); + else + size += sprintf(buf, "%s", "online\n"); + + return size; +} + static DEVICE_ATTR(registers, S_IRUGO, mtip_hw_show_registers, NULL); +static DEVICE_ATTR(status, S_IRUGO, mtip_hw_show_status, NULL); /* * Create the sysfs related attributes. @@ -2328,7 +2541,10 @@ static int mtip_hw_sysfs_init(struct driver_data *dd, struct kobject *kobj) if (sysfs_create_file(kobj, &dev_attr_registers.attr)) dev_warn(&dd->pdev->dev, - "Error creating registers sysfs entry\n"); + "Error creating 'registers' sysfs entry\n"); + if (sysfs_create_file(kobj, &dev_attr_status.attr)) + dev_warn(&dd->pdev->dev, + "Error creating 'status' sysfs entry\n"); return 0; } @@ -2348,6 +2564,7 @@ static int mtip_hw_sysfs_exit(struct driver_data *dd, struct kobject *kobj) return -EINVAL; sysfs_remove_file(kobj, &dev_attr_registers.attr); + sysfs_remove_file(kobj, &dev_attr_status.attr); return 0; } @@ -2566,6 +2783,8 @@ static int mtip_hw_init(struct driver_data *dd) int rv; unsigned int num_command_slots; unsigned long timeout, timetaken; + unsigned char *buf; + struct smart_attr attr242; dd->mmio = pcim_iomap_table(dd->pdev)[MTIP_ABAR]; @@ -2600,7 +2819,7 @@ static int mtip_hw_init(struct driver_data *dd) /* Allocate memory for the command list. */ dd->port->command_list = dmam_alloc_coherent(&dd->pdev->dev, - HW_PORT_PRIV_DMA_SZ + (ATA_SECT_SIZE * 2), + HW_PORT_PRIV_DMA_SZ + (ATA_SECT_SIZE * 4), &dd->port->command_list_dma, GFP_KERNEL); if (!dd->port->command_list) { @@ -2613,7 +2832,7 @@ static int mtip_hw_init(struct driver_data *dd) /* Clear the memory we have allocated. */ memset(dd->port->command_list, 0, - HW_PORT_PRIV_DMA_SZ + (ATA_SECT_SIZE * 2)); + HW_PORT_PRIV_DMA_SZ + (ATA_SECT_SIZE * 4)); /* Setup the addresse of the RX FIS. */ dd->port->rxfis = dd->port->command_list + HW_CMD_SLOT_SZ; @@ -2629,10 +2848,19 @@ static int mtip_hw_init(struct driver_data *dd) dd->port->identify_dma = dd->port->command_tbl_dma + HW_CMD_TBL_AR_SZ; - /* Setup the address of the sector buffer. */ + /* Setup the address of the sector buffer - for some non-ncq cmds */ dd->port->sector_buffer = (void *) dd->port->identify + ATA_SECT_SIZE; dd->port->sector_buffer_dma = dd->port->identify_dma + ATA_SECT_SIZE; + /* Setup the address of the log buf - for read log command */ + dd->port->log_buf = (void *)dd->port->sector_buffer + ATA_SECT_SIZE; + dd->port->log_buf_dma = dd->port->sector_buffer_dma + ATA_SECT_SIZE; + + /* Setup the address of the smart buf - for smart read data command */ + dd->port->smart_buf = (void *)dd->port->log_buf + ATA_SECT_SIZE; + dd->port->smart_buf_dma = dd->port->log_buf_dma + ATA_SECT_SIZE; + + /* Point the command headers at the command tables. */ for (i = 0; i < num_command_slots; i++) { dd->port->commands[i].command_header = @@ -2759,6 +2987,43 @@ static int mtip_hw_init(struct driver_data *dd) return MTIP_FTL_REBUILD_MAGIC; } mtip_dump_identify(dd->port); + + /* check write protect, over temp and rebuild statuses */ + rv = mtip_read_log_page(dd->port, ATA_LOG_SATA_NCQ, + dd->port->log_buf, + dd->port->log_buf_dma, 1); + if (rv) { + dev_warn(&dd->pdev->dev, + "Error in READ LOG EXT (10h) command\n"); + /* non-critical error, don't fail the load */ + } else { + buf = (unsigned char *)dd->port->log_buf; + if (buf[259] & 0x1) { + dev_info(&dd->pdev->dev, + "Write protect bit is set.\n"); + set_bit(MTIP_DD_FLAG_WRITE_PROTECT_BIT, &dd->dd_flag); + } + if (buf[288] == 0xF7) { + dev_info(&dd->pdev->dev, + "Exceeded Tmax, drive in thermal shutdown.\n"); + set_bit(MTIP_DD_FLAG_OVER_TEMP_BIT, &dd->dd_flag); + } + if (buf[288] == 0xBF) { + dev_info(&dd->pdev->dev, + "Drive indicates rebuild has failed.\n"); + /* TODO */ + } + } + + /* get write protect progess */ + memset(&attr242, 0, sizeof(struct smart_attr)); + if (mtip_get_smart_attr(dd->port, 242, &attr242)) + dev_warn(&dd->pdev->dev, + "Unable to check write protect progress\n"); + else + dev_info(&dd->pdev->dev, + "Write protect progress: %d%% (%d blocks)\n", + attr242.cur, attr242.data); return rv; out3: @@ -2776,7 +3041,7 @@ out2: /* Free the command/command header memory. */ dmam_free_coherent(&dd->pdev->dev, - HW_PORT_PRIV_DMA_SZ + (ATA_SECT_SIZE * 2), + HW_PORT_PRIV_DMA_SZ + (ATA_SECT_SIZE * 4), dd->port->command_list, dd->port->command_list_dma); out1: @@ -2825,7 +3090,7 @@ static int mtip_hw_exit(struct driver_data *dd) /* Free the command/command header memory. */ dmam_free_coherent(&dd->pdev->dev, - HW_PORT_PRIV_DMA_SZ + (ATA_SECT_SIZE * 2), + HW_PORT_PRIV_DMA_SZ + (ATA_SECT_SIZE * 4), dd->port->command_list, dd->port->command_list_dma); /* Free the memory allocated for the for structure. */ @@ -3378,7 +3643,7 @@ static int mtip_block_remove(struct driver_data *dd) kthread_stop(dd->mtip_svc_handler); } - /* Clean up the sysfs attributes managed by the protocol layer. */ + /* Clean up the sysfs attributes, if created */ if (test_bit(MTIP_DD_FLAG_INIT_DONE_BIT, &dd->dd_flag)) { kobj = kobject_get(&disk_to_dev(dd->disk)->kobj); if (kobj) { diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h index f4e46cc..ea5c7e7 100644 --- a/drivers/block/mtip32xx/mtip32xx.h +++ b/drivers/block/mtip32xx/mtip32xx.h @@ -127,6 +127,19 @@ #define MTIP_DD_FLAG_CLEANUP_BIT 3 #define MTIP_DD_FLAG_INIT_DONE_BIT 4 +#define MTIP_DD_FLAG_WRITE_PROTECT_BIT 5 +#define MTIP_DD_FLAG_OVER_TEMP_BIT 6 +#define MTIP_DD_FLAG_REBUILD_FAILED_BIT 7 + +__packed struct smart_attr{ + u8 attr_id; + u16 flags; + u8 cur; + u8 worst; + u32 data; + u8 res[3]; +}; + /* Register Frame Information Structure (FIS), host to device. */ struct host_to_dev_fis { /* @@ -351,6 +364,12 @@ struct mtip_port { * when the command slot and all associated data structures * are no longer needed. */ + u16 *log_buf; + dma_addr_t log_buf_dma; + + u8 *smart_buf; + dma_addr_t smart_buf_dma; + unsigned long allocated[SLOTBITS_IN_LONGS]; /* * used to queue commands when an internal command is in progress -- cgit v0.10.2 From 8182b495281764ca518781e876c91900e75088d2 Mon Sep 17 00:00:00 2001 From: Asai Thambi S P Date: Mon, 9 Apr 2012 08:35:38 +0200 Subject: mtip32xx: misc changes * Handle the interrupt completion of polled internal commands * Do not check remove pending flag for standby command * On rebuild failure, - set corresponding bit dd_flag - do not send standby command * Free ida index in remove path Signed-off-by: Asai Thambi S P Signed-off-by: Jens Axboe diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index 79fdb063..be96626 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -708,6 +708,14 @@ static void mtip_completion(struct mtip_port *port, complete(waiting); } +static void mtip_null_completion(struct mtip_port *port, + int tag, + void *data, + int status) +{ + return; +} + /* * Helper function for tag logging */ @@ -992,8 +1000,6 @@ static inline void mtip_process_legacy(struct driver_data *dd, u32 port_stat) } } - dev_warn(&dd->pdev->dev, "IRQ status 0x%x ignored.\n", port_stat); - return; } @@ -1161,7 +1167,7 @@ static int mtip_quiesce_io(struct mtip_port *port, unsigned long timeout) * -EAGAIN Time out waiting for command to complete. */ static int mtip_exec_internal_command(struct mtip_port *port, - void *fis, + struct host_to_dev_fis *fis, int fis_len, dma_addr_t buffer, int buf_len, @@ -1190,14 +1196,17 @@ static int mtip_exec_internal_command(struct mtip_port *port, set_bit(MTIP_FLAG_IC_ACTIVE_BIT, &port->flags); if (atomic == GFP_KERNEL) { - /* wait for io to complete if non atomic */ - if (mtip_quiesce_io(port, 5000) < 0) { - dev_warn(&port->dd->pdev->dev, - "Failed to quiesce IO\n"); - release_slot(port, MTIP_TAG_INTERNAL); - clear_bit(MTIP_FLAG_IC_ACTIVE_BIT, &port->flags); - wake_up_interruptible(&port->svc_wait); - return -EBUSY; + if (fis->command != ATA_CMD_STANDBYNOW1) { + /* wait for io to complete if non atomic */ + if (mtip_quiesce_io(port, 5000) < 0) { + dev_warn(&port->dd->pdev->dev, + "Failed to quiesce IO\n"); + release_slot(port, MTIP_TAG_INTERNAL); + clear_bit(MTIP_FLAG_IC_ACTIVE_BIT, + &port->flags); + wake_up_interruptible(&port->svc_wait); + return -EBUSY; + } } /* Set the completion function and data for the command. */ @@ -1207,7 +1216,7 @@ static int mtip_exec_internal_command(struct mtip_port *port, } else { /* Clear completion - we're going to poll */ int_cmd->comp_data = NULL; - int_cmd->comp_func = NULL; + int_cmd->comp_func = mtip_null_completion; } /* Copy the command to the command table */ @@ -1273,12 +1282,14 @@ static int mtip_exec_internal_command(struct mtip_port *port, } else { /* Spin for checking if command still outstanding */ timeout = jiffies + msecs_to_jiffies(timeout); - - while ((readl( - port->cmd_issue[MTIP_TAG_INTERNAL]) - & (1 << MTIP_TAG_INTERNAL)) - && time_before(jiffies, timeout)) { - if (mtip_check_surprise_removal(port->dd->pdev) || + while ((readl(port->cmd_issue[MTIP_TAG_INTERNAL]) + & (1 << MTIP_TAG_INTERNAL)) + && time_before(jiffies, timeout)) { + if (mtip_check_surprise_removal(port->dd->pdev)) { + rv = -ENXIO; + goto exec_ic_exit; + } + if ((fis->command != ATA_CMD_STANDBYNOW1) && test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &port->dd->dd_flag)) { rv = -ENXIO; @@ -1289,8 +1300,7 @@ static int mtip_exec_internal_command(struct mtip_port *port, if (readl(port->cmd_issue[MTIP_TAG_INTERNAL]) & (1 << MTIP_TAG_INTERNAL)) { dev_err(&port->dd->pdev->dev, - "Internal command did not complete [%d]\n", - atomic); + "Internal command did not complete [atomic]\n"); rv = -EAGAIN; if (test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &port->dd->dd_flag)) { @@ -2758,7 +2768,9 @@ static int mtip_service_thread(void *data) clear_bit(MTIP_FLAG_ISSUE_CMDS_BIT, &port->flags); } else if (test_bit(MTIP_FLAG_REBUILD_BIT, &port->flags)) { - mtip_ftl_rebuild_poll(dd); + if (!mtip_ftl_rebuild_poll(dd)) + set_bit(MTIP_DD_FLAG_REBUILD_FAILED_BIT, + &dd->dd_flag); clear_bit(MTIP_FLAG_REBUILD_BIT, &port->flags); } clear_bit(MTIP_FLAG_SVC_THD_ACTIVE_BIT, &port->flags); @@ -3067,7 +3079,7 @@ static int mtip_hw_exit(struct driver_data *dd) */ if (!test_bit(MTIP_DD_FLAG_CLEANUP_BIT, &dd->dd_flag)) { - if (test_bit(MTIP_FLAG_REBUILD_BIT, &dd->dd_flag)) + if (!test_bit(MTIP_FLAG_REBUILD_BIT, &dd->port->flags)) if (mtip_standby_immediate(dd->port)) dev_warn(&dd->pdev->dev, "STANDBY IMMEDIATE failed\n"); @@ -3657,6 +3669,11 @@ static int mtip_block_remove(struct driver_data *dd) * from /dev */ del_gendisk(dd->disk); + + spin_lock(&rssd_index_lock); + ida_remove(&rssd_index_ida, dd->index); + spin_unlock(&rssd_index_lock); + blk_cleanup_queue(dd->queue); dd->disk = NULL; dd->queue = NULL; @@ -3686,6 +3703,11 @@ static int mtip_block_shutdown(struct driver_data *dd) /* Delete our gendisk structure, and cleanup the blk queue. */ del_gendisk(dd->disk); + + spin_lock(&rssd_index_lock); + ida_remove(&rssd_index_ida, dd->index); + spin_unlock(&rssd_index_lock); + blk_cleanup_queue(dd->queue); dd->disk = NULL; dd->queue = NULL; -- cgit v0.10.2 From 8a857a880bd83ba4f217d55dd4a623a7e4b5cb47 Mon Sep 17 00:00:00 2001 From: Asai Thambi S P Date: Mon, 9 Apr 2012 08:35:38 +0200 Subject: mtip32xx: Shorten macro names Shortened macros used to represent mtip_port->flags and dd->dd_flag Signed-off-by: Asai Thambi S P Signed-off-by: Jens Axboe diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index be96626..e57864a 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -173,7 +173,7 @@ static void mtip_command_cleanup(struct driver_data *dd) up(&port->cmd_slot); - set_bit(MTIP_DD_FLAG_CLEANUP_BIT, &dd->dd_flag); + set_bit(MTIP_DDF_CLEANUP_BIT, &dd->dd_flag); in_progress = 0; } @@ -271,7 +271,7 @@ static int hba_reset_nosleep(struct driver_data *dd) && time_before(jiffies, timeout)) mdelay(1); - if (test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &dd->dd_flag)) + if (test_bit(MTIP_DDF_REMOVE_PENDING_BIT, &dd->dd_flag)) return -1; if (readl(dd->mmio + HOST_CTL) & HOST_RESET) @@ -467,7 +467,7 @@ static void mtip_restart_port(struct mtip_port *port) && time_before(jiffies, timeout)) ; - if (test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &port->dd->dd_flag)) + if (test_bit(MTIP_DDF_REMOVE_PENDING_BIT, &port->dd->dd_flag)) return; /* @@ -498,7 +498,7 @@ static void mtip_restart_port(struct mtip_port *port) while (time_before(jiffies, timeout)) ; - if (test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &port->dd->dd_flag)) + if (test_bit(MTIP_DDF_REMOVE_PENDING_BIT, &port->dd->dd_flag)) return; /* Clear PxSCTL.DET */ @@ -512,7 +512,7 @@ static void mtip_restart_port(struct mtip_port *port) && time_before(jiffies, timeout)) ; - if (test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &port->dd->dd_flag)) + if (test_bit(MTIP_DDF_REMOVE_PENDING_BIT, &port->dd->dd_flag)) return; if ((readl(port->mmio + PORT_SCR_STAT) & 0x01) == 0) @@ -545,7 +545,7 @@ static void mtip_timeout_function(unsigned long int data) if (unlikely(!port)) return; - if (test_bit(MTIP_DD_FLAG_RESUME_BIT, &port->dd->dd_flag)) { + if (test_bit(MTIP_DDF_RESUME_BIT, &port->dd->dd_flag)) { mod_timer(&port->cmd_timer, jiffies + msecs_to_jiffies(30000)); return; @@ -572,7 +572,7 @@ static void mtip_timeout_function(unsigned long int data) cmdto_cnt++; if (cmdto_cnt == 1) - set_bit(MTIP_FLAG_EH_ACTIVE_BIT, &port->flags); + set_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags); /* * Clear the completed bit. This should prevent @@ -610,7 +610,7 @@ static void mtip_timeout_function(unsigned long int data) "%d commands timed out: restarting port", cmdto_cnt); mtip_restart_port(port); - clear_bit(MTIP_FLAG_EH_ACTIVE_BIT, &port->flags); + clear_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags); wake_up_interruptible(&port->svc_wait); } @@ -765,7 +765,7 @@ static void mtip_handle_tfe(struct driver_data *dd) del_timer(&port->cmd_timer); /* Set eh_active */ - set_bit(MTIP_FLAG_EH_ACTIVE_BIT, &port->flags); + set_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags); /* Loop through all the groups */ for (group = 0; group < dd->slot_groups; group++) { @@ -826,14 +826,14 @@ static void mtip_handle_tfe(struct driver_data *dd) if (buf[259] & 0x1) { dev_info(&dd->pdev->dev, "Write protect bit is set.\n"); - set_bit(MTIP_DD_FLAG_WRITE_PROTECT_BIT, &dd->dd_flag); + set_bit(MTIP_DDF_WRITE_PROTECT_BIT, &dd->dd_flag); fail_all_ncq_write = 1; fail_reason = "write protect"; } if (buf[288] == 0xF7) { dev_info(&dd->pdev->dev, "Exceeded Tmax, drive in thermal shutdown.\n"); - set_bit(MTIP_DD_FLAG_OVER_TEMP_BIT, &dd->dd_flag); + set_bit(MTIP_DDF_OVER_TEMP_BIT, &dd->dd_flag); fail_all_ncq_cmds = 1; fail_reason = "thermal shutdown"; } @@ -920,7 +920,7 @@ static void mtip_handle_tfe(struct driver_data *dd) print_tags(dd, "TFE tags reissued:", tagaccum); /* clear eh_active */ - clear_bit(MTIP_FLAG_EH_ACTIVE_BIT, &port->flags); + clear_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags); wake_up_interruptible(&port->svc_wait); mod_timer(&port->cmd_timer, @@ -988,7 +988,7 @@ static inline void mtip_process_legacy(struct driver_data *dd, u32 port_stat) struct mtip_port *port = dd->port; struct mtip_cmd *cmd = &port->commands[MTIP_TAG_INTERNAL]; - if (test_bit(MTIP_FLAG_IC_ACTIVE_BIT, &port->flags) && + if (test_bit(MTIP_PF_IC_ACTIVE_BIT, &port->flags) && (cmd != NULL) && !(readl(port->cmd_issue[MTIP_TAG_INTERNAL]) & (1 << MTIP_TAG_INTERNAL))) { if (cmd->comp_func) { @@ -1055,7 +1055,7 @@ static inline irqreturn_t mtip_handle_irq(struct driver_data *data) /* don't proceed further */ return IRQ_HANDLED; } - if (test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, + if (test_bit(MTIP_DDF_REMOVE_PENDING_BIT, &dd->dd_flag)) return rv; @@ -1123,13 +1123,12 @@ static int mtip_quiesce_io(struct mtip_port *port, unsigned long timeout) to = jiffies + msecs_to_jiffies(timeout); do { - if (test_bit(MTIP_FLAG_SVC_THD_ACTIVE_BIT, &port->flags) && - test_bit(MTIP_FLAG_ISSUE_CMDS_BIT, &port->flags)) { + if (test_bit(MTIP_PF_SVC_THD_ACTIVE_BIT, &port->flags) && + test_bit(MTIP_PF_ISSUE_CMDS_BIT, &port->flags)) { msleep(20); continue; /* svc thd is actively issuing commands */ } - if (test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, - &port->dd->dd_flag)) + if (test_bit(MTIP_DDF_REMOVE_PENDING_BIT, &port->dd->dd_flag)) return -EFAULT; /* * Ignore s_active bit 0 of array element 0. @@ -1193,7 +1192,7 @@ static int mtip_exec_internal_command(struct mtip_port *port, "Internal command already active\n"); return -EBUSY; } - set_bit(MTIP_FLAG_IC_ACTIVE_BIT, &port->flags); + set_bit(MTIP_PF_IC_ACTIVE_BIT, &port->flags); if (atomic == GFP_KERNEL) { if (fis->command != ATA_CMD_STANDBYNOW1) { @@ -1202,8 +1201,7 @@ static int mtip_exec_internal_command(struct mtip_port *port, dev_warn(&port->dd->pdev->dev, "Failed to quiesce IO\n"); release_slot(port, MTIP_TAG_INTERNAL); - clear_bit(MTIP_FLAG_IC_ACTIVE_BIT, - &port->flags); + clear_bit(MTIP_PF_IC_ACTIVE_BIT, &port->flags); wake_up_interruptible(&port->svc_wait); return -EBUSY; } @@ -1256,7 +1254,7 @@ static int mtip_exec_internal_command(struct mtip_port *port, "within timeout of %lu ms\n", atomic, timeout); if (mtip_check_surprise_removal(port->dd->pdev) || - test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, + test_bit(MTIP_DDF_REMOVE_PENDING_BIT, &port->dd->dd_flag)) { rv = -ENXIO; goto exec_ic_exit; @@ -1268,7 +1266,7 @@ static int mtip_exec_internal_command(struct mtip_port *port, & (1 << MTIP_TAG_INTERNAL)) { dev_warn(&port->dd->pdev->dev, "Retiring internal command but CI is 1.\n"); - if (test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, + if (test_bit(MTIP_DDF_REMOVE_PENDING_BIT, &port->dd->dd_flag)) { hba_reset_nosleep(port->dd); rv = -ENXIO; @@ -1290,7 +1288,7 @@ static int mtip_exec_internal_command(struct mtip_port *port, goto exec_ic_exit; } if ((fis->command != ATA_CMD_STANDBYNOW1) && - test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, + test_bit(MTIP_DDF_REMOVE_PENDING_BIT, &port->dd->dd_flag)) { rv = -ENXIO; goto exec_ic_exit; @@ -1302,7 +1300,7 @@ static int mtip_exec_internal_command(struct mtip_port *port, dev_err(&port->dd->pdev->dev, "Internal command did not complete [atomic]\n"); rv = -EAGAIN; - if (test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, + if (test_bit(MTIP_DDF_REMOVE_PENDING_BIT, &port->dd->dd_flag)) { hba_reset_nosleep(port->dd); rv = -ENXIO; @@ -1316,7 +1314,7 @@ exec_ic_exit: /* Clear the allocated and active bits for the internal command. */ atomic_set(&int_cmd->active, 0); release_slot(port, MTIP_TAG_INTERNAL); - clear_bit(MTIP_FLAG_IC_ACTIVE_BIT, &port->flags); + clear_bit(MTIP_PF_IC_ACTIVE_BIT, &port->flags); wake_up_interruptible(&port->svc_wait); return rv; @@ -1366,7 +1364,7 @@ static int mtip_get_identify(struct mtip_port *port, void __user *user_buffer) int rv = 0; struct host_to_dev_fis fis; - if (test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &port->dd->dd_flag)) + if (test_bit(MTIP_DDF_REMOVE_PENDING_BIT, &port->dd->dd_flag)) return -EFAULT; /* Build the FIS. */ @@ -2398,10 +2396,10 @@ static void mtip_hw_submit_io(struct driver_data *dd, sector_t start, * To prevent this command from being issued * if an internal command is in progress or error handling is active. */ - if (unlikely(test_bit(MTIP_FLAG_IC_ACTIVE_BIT, &port->flags) || - test_bit(MTIP_FLAG_EH_ACTIVE_BIT, &port->flags))) { + if (unlikely(test_bit(MTIP_PF_IC_ACTIVE_BIT, &port->flags) || + test_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags))) { set_bit(tag, port->cmds_to_issue); - set_bit(MTIP_FLAG_ISSUE_CMDS_BIT, &port->flags); + set_bit(MTIP_PF_ISSUE_CMDS_BIT, &port->flags); return; } @@ -2447,7 +2445,7 @@ static struct scatterlist *mtip_hw_get_scatterlist(struct driver_data *dd, down(&dd->port->cmd_slot); *tag = get_slot(dd->port); - if (unlikely(test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &dd->dd_flag))) { + if (unlikely(test_bit(MTIP_DDF_REMOVE_PENDING_BIT, &dd->dd_flag))) { up(&dd->port->cmd_slot); return NULL; } @@ -2521,9 +2519,9 @@ static ssize_t mtip_hw_show_status(struct device *dev, struct driver_data *dd = dev_to_disk(dev)->private_data; int size = 0; - if (test_bit(MTIP_DD_FLAG_OVER_TEMP_BIT, &dd->dd_flag)) + if (test_bit(MTIP_DDF_OVER_TEMP_BIT, &dd->dd_flag)) size += sprintf(buf, "%s", "thermal_shutdown\n"); - else if (test_bit(MTIP_DD_FLAG_WRITE_PROTECT_BIT, &dd->dd_flag)) + else if (test_bit(MTIP_DDF_WRITE_PROTECT_BIT, &dd->dd_flag)) size += sprintf(buf, "%s", "write_protect\n"); else size += sprintf(buf, "%s", "online\n"); @@ -2670,7 +2668,7 @@ static int mtip_ftl_rebuild_poll(struct driver_data *dd) timeout = jiffies + msecs_to_jiffies(MTIP_FTL_REBUILD_TIMEOUT_MS); do { - if (unlikely(test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, + if (unlikely(test_bit(MTIP_DDF_REMOVE_PENDING_BIT, &dd->dd_flag))) return -EFAULT; if (mtip_check_surprise_removal(dd->pdev)) @@ -2728,17 +2726,17 @@ static int mtip_service_thread(void *data) * is in progress nor error handling is active */ wait_event_interruptible(port->svc_wait, (port->flags) && - !test_bit(MTIP_FLAG_IC_ACTIVE_BIT, &port->flags) && - !test_bit(MTIP_FLAG_EH_ACTIVE_BIT, &port->flags)); + !test_bit(MTIP_PF_IC_ACTIVE_BIT, &port->flags) && + !test_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags)); if (kthread_should_stop()) break; - if (unlikely(test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, + if (unlikely(test_bit(MTIP_DDF_REMOVE_PENDING_BIT, &dd->dd_flag))) break; - set_bit(MTIP_FLAG_SVC_THD_ACTIVE_BIT, &port->flags); - if (test_bit(MTIP_FLAG_ISSUE_CMDS_BIT, &port->flags)) { + set_bit(MTIP_PF_SVC_THD_ACTIVE_BIT, &port->flags); + if (test_bit(MTIP_PF_ISSUE_CMDS_BIT, &port->flags)) { slot = 1; /* used to restrict the loop to one iteration */ slot_start = num_cmd_slots; @@ -2766,16 +2764,16 @@ static int mtip_service_thread(void *data) clear_bit(slot, port->cmds_to_issue); } - clear_bit(MTIP_FLAG_ISSUE_CMDS_BIT, &port->flags); - } else if (test_bit(MTIP_FLAG_REBUILD_BIT, &port->flags)) { + clear_bit(MTIP_PF_ISSUE_CMDS_BIT, &port->flags); + } else if (test_bit(MTIP_PF_REBUILD_BIT, &port->flags)) { if (!mtip_ftl_rebuild_poll(dd)) - set_bit(MTIP_DD_FLAG_REBUILD_FAILED_BIT, + set_bit(MTIP_DDF_REBUILD_FAILED_BIT, &dd->dd_flag); - clear_bit(MTIP_FLAG_REBUILD_BIT, &port->flags); + clear_bit(MTIP_PF_REBUILD_BIT, &port->flags); } - clear_bit(MTIP_FLAG_SVC_THD_ACTIVE_BIT, &port->flags); + clear_bit(MTIP_PF_SVC_THD_ACTIVE_BIT, &port->flags); - if (test_bit(MTIP_FLAG_SVC_THD_SHOULD_STOP_BIT, &port->flags)) + if (test_bit(MTIP_PF_SVC_THD_SHOULD_STOP_BIT, &port->flags)) break; } return 0; @@ -2930,7 +2928,7 @@ static int mtip_hw_init(struct driver_data *dd) rv = -ENODEV; goto out2 ; } - if (unlikely(test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &dd->dd_flag))) { + if (unlikely(test_bit(MTIP_DDF_REMOVE_PENDING_BIT, &dd->dd_flag))) { timetaken = jiffies - timetaken; dev_warn(&dd->pdev->dev, "Removal detected at %u ms\n", @@ -2983,7 +2981,7 @@ static int mtip_hw_init(struct driver_data *dd) jiffies + msecs_to_jiffies(MTIP_TIMEOUT_CHECK_PERIOD)); - if (test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &dd->dd_flag)) { + if (test_bit(MTIP_DDF_REMOVE_PENDING_BIT, &dd->dd_flag)) { rv = -EFAULT; goto out3; } @@ -2995,7 +2993,7 @@ static int mtip_hw_init(struct driver_data *dd) if (*(dd->port->identify + MTIP_FTL_REBUILD_OFFSET) == MTIP_FTL_REBUILD_MAGIC) { - set_bit(MTIP_FLAG_REBUILD_BIT, &dd->port->flags); + set_bit(MTIP_PF_REBUILD_BIT, &dd->port->flags); return MTIP_FTL_REBUILD_MAGIC; } mtip_dump_identify(dd->port); @@ -3013,12 +3011,12 @@ static int mtip_hw_init(struct driver_data *dd) if (buf[259] & 0x1) { dev_info(&dd->pdev->dev, "Write protect bit is set.\n"); - set_bit(MTIP_DD_FLAG_WRITE_PROTECT_BIT, &dd->dd_flag); + set_bit(MTIP_DDF_WRITE_PROTECT_BIT, &dd->dd_flag); } if (buf[288] == 0xF7) { dev_info(&dd->pdev->dev, "Exceeded Tmax, drive in thermal shutdown.\n"); - set_bit(MTIP_DD_FLAG_OVER_TEMP_BIT, &dd->dd_flag); + set_bit(MTIP_DDF_OVER_TEMP_BIT, &dd->dd_flag); } if (buf[288] == 0xBF) { dev_info(&dd->pdev->dev, @@ -3077,9 +3075,9 @@ static int mtip_hw_exit(struct driver_data *dd) * Send standby immediate (E0h) to the drive so that it * saves its state. */ - if (!test_bit(MTIP_DD_FLAG_CLEANUP_BIT, &dd->dd_flag)) { + if (!test_bit(MTIP_DDF_CLEANUP_BIT, &dd->dd_flag)) { - if (!test_bit(MTIP_FLAG_REBUILD_BIT, &dd->port->flags)) + if (!test_bit(MTIP_PF_REBUILD_BIT, &dd->port->flags)) if (mtip_standby_immediate(dd->port)) dev_warn(&dd->pdev->dev, "STANDBY IMMEDIATE failed\n"); @@ -3260,7 +3258,7 @@ static int mtip_block_ioctl(struct block_device *dev, if (!dd) return -ENOTTY; - if (unlikely(test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &dd->dd_flag))) + if (unlikely(test_bit(MTIP_DDF_REMOVE_PENDING_BIT, &dd->dd_flag))) return -ENOTTY; switch (cmd) { @@ -3298,7 +3296,7 @@ static int mtip_block_compat_ioctl(struct block_device *dev, if (!dd) return -ENOTTY; - if (unlikely(test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &dd->dd_flag))) + if (unlikely(test_bit(MTIP_DDF_REMOVE_PENDING_BIT, &dd->dd_flag))) return -ENOTTY; switch (cmd) { @@ -3423,7 +3421,7 @@ static void mtip_make_request(struct request_queue *queue, struct bio *bio) int nents = 0; int tag = 0; - if (test_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &dd->dd_flag)) { + if (test_bit(MTIP_DDF_REMOVE_PENDING_BIT, &dd->dd_flag)) { bio_endio(bio, -ENXIO); return; } @@ -3590,7 +3588,7 @@ skip_create_disk: } if (dd->mtip_svc_handler) { - set_bit(MTIP_DD_FLAG_INIT_DONE_BIT, &dd->dd_flag); + set_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag); return rv; /* service thread created for handling rebuild */ } @@ -3650,13 +3648,13 @@ static int mtip_block_remove(struct driver_data *dd) struct kobject *kobj; if (dd->mtip_svc_handler) { - set_bit(MTIP_FLAG_SVC_THD_SHOULD_STOP_BIT, &dd->port->flags); + set_bit(MTIP_PF_SVC_THD_SHOULD_STOP_BIT, &dd->port->flags); wake_up_interruptible(&dd->port->svc_wait); kthread_stop(dd->mtip_svc_handler); } /* Clean up the sysfs attributes, if created */ - if (test_bit(MTIP_DD_FLAG_INIT_DONE_BIT, &dd->dd_flag)) { + if (test_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag)) { kobj = kobject_get(&disk_to_dev(dd->disk)->kobj); if (kobj) { mtip_hw_sysfs_exit(dd, kobj); @@ -3812,7 +3810,7 @@ static int mtip_pci_probe(struct pci_dev *pdev, */ instance++; if (rv != MTIP_FTL_REBUILD_MAGIC) - set_bit(MTIP_DD_FLAG_INIT_DONE_BIT, &dd->dd_flag); + set_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag); goto done; block_initialize_err: @@ -3841,10 +3839,10 @@ static void mtip_pci_remove(struct pci_dev *pdev) struct driver_data *dd = pci_get_drvdata(pdev); int counter = 0; - set_bit(MTIP_DD_FLAG_REMOVE_PENDING_BIT, &dd->dd_flag); + set_bit(MTIP_DDF_REMOVE_PENDING_BIT, &dd->dd_flag); if (mtip_check_surprise_removal(pdev)) { - while (!test_bit(MTIP_DD_FLAG_CLEANUP_BIT, &dd->dd_flag)) { + while (!test_bit(MTIP_DDF_CLEANUP_BIT, &dd->dd_flag)) { counter++; msleep(20); if (counter == 10) { @@ -3882,7 +3880,7 @@ static int mtip_pci_suspend(struct pci_dev *pdev, pm_message_t mesg) return -EFAULT; } - set_bit(MTIP_DD_FLAG_RESUME_BIT, &dd->dd_flag); + set_bit(MTIP_DDF_RESUME_BIT, &dd->dd_flag); /* Disable ports & interrupts then send standby immediate */ rv = mtip_block_suspend(dd); @@ -3948,7 +3946,7 @@ static int mtip_pci_resume(struct pci_dev *pdev) dev_err(&pdev->dev, "Unable to resume\n"); err: - clear_bit(MTIP_DD_FLAG_RESUME_BIT, &dd->dd_flag); + clear_bit(MTIP_DDF_RESUME_BIT, &dd->dd_flag); return rv; } diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h index ea5c7e7..5ad2d79 100644 --- a/drivers/block/mtip32xx/mtip32xx.h +++ b/drivers/block/mtip32xx/mtip32xx.h @@ -114,22 +114,22 @@ #define __force_bit2int (unsigned int __force) /* below are bit numbers in 'flags' defined in mtip_port */ -#define MTIP_FLAG_IC_ACTIVE_BIT 0 -#define MTIP_FLAG_EH_ACTIVE_BIT 1 -#define MTIP_FLAG_SVC_THD_ACTIVE_BIT 2 -#define MTIP_FLAG_ISSUE_CMDS_BIT 4 -#define MTIP_FLAG_REBUILD_BIT 5 -#define MTIP_FLAG_SVC_THD_SHOULD_STOP_BIT 8 +#define MTIP_PF_IC_ACTIVE_BIT 0 +#define MTIP_PF_EH_ACTIVE_BIT 1 +#define MTIP_PF_SVC_THD_ACTIVE_BIT 2 +#define MTIP_PF_ISSUE_CMDS_BIT 4 +#define MTIP_PF_REBUILD_BIT 5 +#define MTIP_PF_SVC_THD_SHOULD_STOP_BIT 8 /* below are bit numbers in 'dd_flag' defined in driver_data */ -#define MTIP_DD_FLAG_REMOVE_PENDING_BIT 1 -#define MTIP_DD_FLAG_RESUME_BIT 2 -#define MTIP_DD_FLAG_CLEANUP_BIT 3 -#define MTIP_DD_FLAG_INIT_DONE_BIT 4 - -#define MTIP_DD_FLAG_WRITE_PROTECT_BIT 5 -#define MTIP_DD_FLAG_OVER_TEMP_BIT 6 -#define MTIP_DD_FLAG_REBUILD_FAILED_BIT 7 +#define MTIP_DDF_REMOVE_PENDING_BIT 1 +#define MTIP_DDF_RESUME_BIT 2 +#define MTIP_DDF_CLEANUP_BIT 3 +#define MTIP_DDF_INIT_DONE_BIT 4 + +#define MTIP_DDF_WRITE_PROTECT_BIT 5 +#define MTIP_DDF_OVER_TEMP_BIT 6 +#define MTIP_DDF_REBUILD_FAILED_BIT 7 __packed struct smart_attr{ u8 attr_id; -- cgit v0.10.2 From c74b0f586fa3cbc92ca451836fd75ae7a3fa85ac Mon Sep 17 00:00:00 2001 From: Asai Thambi S P Date: Mon, 9 Apr 2012 08:35:39 +0200 Subject: mtip32xx: fix handling of commands in various scenarios * If a ncq command time out and a non-ncq command is active, skip restart port * Queue(pause) ncq commands during operations spanning more than one non-ncq commands - secure erase, download microcode * When a non-ncq command is active, allow incoming non-ncq commands to wait instead of failing back * Changed timeout for download microcode and smart commands * If the device in write protect mode, fail all writes (do not send to device) * Set maximum retries to 2 Signed-off-by: Asai Thambi S P Signed-off-by: Jens Axboe diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index e57864a..47404ef 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -436,7 +436,8 @@ static void mtip_init_port(struct mtip_port *port) writel(0xFFFFFFFF, port->completed[i]); /* Clear any pending interrupts for this port */ - writel(readl(port->mmio + PORT_IRQ_STAT), port->mmio + PORT_IRQ_STAT); + writel(readl(port->dd->mmio + PORT_IRQ_STAT), + port->dd->mmio + PORT_IRQ_STAT); /* Clear any pending interrupts on the HBA. */ writel(readl(port->dd->mmio + HOST_IRQ_STAT), @@ -541,6 +542,7 @@ static void mtip_timeout_function(unsigned long int data) int tag, cmdto_cnt = 0; unsigned int bit, group; unsigned int num_command_slots = port->dd->slot_groups * 32; + unsigned long to; if (unlikely(!port)) return; @@ -605,7 +607,7 @@ static void mtip_timeout_function(unsigned long int data) } } - if (cmdto_cnt) { + if (cmdto_cnt && !test_bit(MTIP_PF_IC_ACTIVE_BIT, &port->flags)) { dev_warn(&port->dd->pdev->dev, "%d commands timed out: restarting port", cmdto_cnt); @@ -614,6 +616,21 @@ static void mtip_timeout_function(unsigned long int data) wake_up_interruptible(&port->svc_wait); } + if (port->ic_pause_timer) { + to = port->ic_pause_timer + msecs_to_jiffies(1000); + if (time_after(jiffies, to)) { + if (!test_bit(MTIP_PF_IC_ACTIVE_BIT, &port->flags)) { + port->ic_pause_timer = 0; + clear_bit(MTIP_PF_SE_ACTIVE_BIT, &port->flags); + clear_bit(MTIP_PF_DM_ACTIVE_BIT, &port->flags); + clear_bit(MTIP_PF_IC_ACTIVE_BIT, &port->flags); + wake_up_interruptible(&port->svc_wait); + } + + + } + } + /* Restart the timer */ mod_timer(&port->cmd_timer, jiffies + msecs_to_jiffies(MTIP_TIMEOUT_CHECK_PERIOD)); @@ -1105,6 +1122,39 @@ static void mtip_issue_non_ncq_command(struct mtip_port *port, int tag) port->cmd_issue[MTIP_TAG_INDEX(tag)]); } +static bool mtip_pause_ncq(struct mtip_port *port, + struct host_to_dev_fis *fis) +{ + struct host_to_dev_fis *reply; + unsigned long task_file_data; + + reply = port->rxfis + RX_FIS_D2H_REG; + task_file_data = readl(port->mmio+PORT_TFDATA); + + if ((task_file_data & 1) || (fis->command == ATA_CMD_SEC_ERASE_UNIT)) + return false; + + if (fis->command == ATA_CMD_SEC_ERASE_PREP) { + set_bit(MTIP_PF_SE_ACTIVE_BIT, &port->flags); + port->ic_pause_timer = jiffies; + return true; + } else if ((fis->command == ATA_CMD_DOWNLOAD_MICRO) && + (fis->features == 0x03)) { + set_bit(MTIP_PF_DM_ACTIVE_BIT, &port->flags); + port->ic_pause_timer = jiffies; + return true; + } else if ((fis->command == ATA_CMD_SEC_ERASE_UNIT) || + ((fis->command == 0xFC) && + (fis->features == 0x27 || fis->features == 0x72 || + fis->features == 0x62 || fis->features == 0x26))) { + /* Com reset after secure erase or lowlevel format */ + mtip_restart_port(port); + return false; + } + + return false; +} + /* * Wait for port to quiesce * @@ -1176,8 +1226,9 @@ static int mtip_exec_internal_command(struct mtip_port *port, { struct mtip_cmd_sg *command_sg; DECLARE_COMPLETION_ONSTACK(wait); - int rv = 0; + int rv = 0, ready2go = 1; struct mtip_cmd *int_cmd = &port->commands[MTIP_TAG_INTERNAL]; + unsigned long to; /* Make sure the buffer is 8 byte aligned. This is asic specific. */ if (buffer & 0x00000007) { @@ -1186,13 +1237,26 @@ static int mtip_exec_internal_command(struct mtip_port *port, return -EFAULT; } - /* Only one internal command should be running at a time */ - if (test_and_set_bit(MTIP_TAG_INTERNAL, port->allocated)) { + to = jiffies + msecs_to_jiffies(timeout); + do { + ready2go = !test_and_set_bit(MTIP_TAG_INTERNAL, + port->allocated); + if (ready2go) + break; + mdelay(100); + } while (time_before(jiffies, to)); + if (!ready2go) { dev_warn(&port->dd->pdev->dev, - "Internal command already active\n"); + "Internal cmd active. new cmd [%02X]\n", fis->command); return -EBUSY; } set_bit(MTIP_PF_IC_ACTIVE_BIT, &port->flags); + port->ic_pause_timer = 0; + + if (fis->command == ATA_CMD_SEC_ERASE_UNIT) + clear_bit(MTIP_PF_SE_ACTIVE_BIT, &port->flags); + else if (fis->command == ATA_CMD_DOWNLOAD_MICRO) + clear_bit(MTIP_PF_DM_ACTIVE_BIT, &port->flags); if (atomic == GFP_KERNEL) { if (fis->command != ATA_CMD_STANDBYNOW1) { @@ -1314,6 +1378,10 @@ exec_ic_exit: /* Clear the allocated and active bits for the internal command. */ atomic_set(&int_cmd->active, 0); release_slot(port, MTIP_TAG_INTERNAL); + if (rv >= 0 && mtip_pause_ncq(port, fis)) { + /* NCQ paused */ + return rv; + } clear_bit(MTIP_PF_IC_ACTIVE_BIT, &port->flags); wake_up_interruptible(&port->svc_wait); @@ -1767,8 +1835,7 @@ static int exec_drive_task(struct mtip_port *port, u8 *command) fis.cyl_hi = command[5]; fis.device = command[6] & ~0x10; /* Clear the dev bit*/ - - dbg_printk(MTIP_DRV_NAME "%s: User Command: cmd %x, feat %x, nsect %x, sect %x, lcyl %x, hcyl %x, sel %x\n", + dbg_printk(MTIP_DRV_NAME " %s: User Command: cmd %x, feat %x, nsect %x, sect %x, lcyl %x, hcyl %x, sel %x\n", __func__, command[0], command[1], @@ -1795,7 +1862,7 @@ static int exec_drive_task(struct mtip_port *port, u8 *command) command[4] = reply->cyl_low; command[5] = reply->cyl_hi; - dbg_printk(MTIP_DRV_NAME "%s: Completion Status: stat %x, err %x , cyl_lo %x cyl_hi %x\n", + dbg_printk(MTIP_DRV_NAME " %s: Completion Status: stat %x, err %x , cyl_lo %x cyl_hi %x\n", __func__, command[0], command[1], @@ -1838,7 +1905,7 @@ static int exec_drive_command(struct mtip_port *port, u8 *command, } dbg_printk(MTIP_DRV_NAME - "%s: User Command: cmd %x, sect %x, " + " %s: User Command: cmd %x, sect %x, " "feat %x, sectcnt %x\n", __func__, command[0], @@ -1867,7 +1934,7 @@ static int exec_drive_command(struct mtip_port *port, u8 *command, command[2] = command[3]; dbg_printk(MTIP_DRV_NAME - "%s: Completion Status: stat %x, " + " %s: Completion Status: stat %x, " "err %x, cmd %x\n", __func__, command[0], @@ -2070,9 +2137,10 @@ static int exec_drive_taskfile(struct driver_data *dd, } dbg_printk(MTIP_DRV_NAME - "taskfile: cmd %x, feat %x, nsect %x," + " %s: cmd %x, feat %x, nsect %x," " sect/lbal %x, lcyl/lbam %x, hcyl/lbah %x," " head/dev %x\n", + __func__, fis.command, fis.features, fis.sect_count, @@ -2083,8 +2151,8 @@ static int exec_drive_taskfile(struct driver_data *dd, switch (fis.command) { case ATA_CMD_DOWNLOAD_MICRO: - /* Change timeout for Download Microcode to 60 seconds.*/ - timeout = 60000; + /* Change timeout for Download Microcode to 2 minutes */ + timeout = 120000; break; case ATA_CMD_SEC_ERASE_UNIT: /* Change timeout for Security Erase Unit to 4 minutes.*/ @@ -2100,8 +2168,8 @@ static int exec_drive_taskfile(struct driver_data *dd, timeout = 10000; break; case ATA_CMD_SMART: - /* Change timeout for vendor unique command to 10 secs */ - timeout = 10000; + /* Change timeout for vendor unique command to 15 secs */ + timeout = 15000; break; default: timeout = MTIP_IOCTL_COMMAND_TIMEOUT_MS; @@ -2163,18 +2231,8 @@ static int exec_drive_taskfile(struct driver_data *dd, req_task->hob_ports[1] = reply->features_ex; req_task->hob_ports[2] = reply->sect_cnt_ex; } - - /* Com rest after secure erase or lowlevel format */ - if (((fis.command == ATA_CMD_SEC_ERASE_UNIT) || - ((fis.command == 0xFC) && - (fis.features == 0x27 || fis.features == 0x72 || - fis.features == 0x62 || fis.features == 0x26))) && - !(reply->command & 1)) { - mtip_restart_port(dd->port); - } - dbg_printk(MTIP_DRV_NAME - "%s: Completion: stat %x," + " %s: Completion: stat %x," "err %x, sect_cnt %x, lbalo %x," "lbamid %x, lbahi %x, dev %x\n", __func__, @@ -2396,8 +2454,7 @@ static void mtip_hw_submit_io(struct driver_data *dd, sector_t start, * To prevent this command from being issued * if an internal command is in progress or error handling is active. */ - if (unlikely(test_bit(MTIP_PF_IC_ACTIVE_BIT, &port->flags) || - test_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags))) { + if (port->flags & MTIP_PF_PAUSE_IO) { set_bit(tag, port->cmds_to_issue); set_bit(MTIP_PF_ISSUE_CMDS_BIT, &port->flags); return; @@ -2726,8 +2783,7 @@ static int mtip_service_thread(void *data) * is in progress nor error handling is active */ wait_event_interruptible(port->svc_wait, (port->flags) && - !test_bit(MTIP_PF_IC_ACTIVE_BIT, &port->flags) && - !test_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags)); + !(port->flags & MTIP_PF_PAUSE_IO)); if (kthread_should_stop()) break; @@ -2735,6 +2791,7 @@ static int mtip_service_thread(void *data) if (unlikely(test_bit(MTIP_DDF_REMOVE_PENDING_BIT, &dd->dd_flag))) break; + set_bit(MTIP_PF_SVC_THD_ACTIVE_BIT, &port->flags); if (test_bit(MTIP_PF_ISSUE_CMDS_BIT, &port->flags)) { slot = 1; @@ -2773,7 +2830,7 @@ static int mtip_service_thread(void *data) } clear_bit(MTIP_PF_SVC_THD_ACTIVE_BIT, &port->flags); - if (test_bit(MTIP_PF_SVC_THD_SHOULD_STOP_BIT, &port->flags)) + if (test_bit(MTIP_PF_SVC_THD_STOP_BIT, &port->flags)) break; } return 0; @@ -3421,9 +3478,22 @@ static void mtip_make_request(struct request_queue *queue, struct bio *bio) int nents = 0; int tag = 0; - if (test_bit(MTIP_DDF_REMOVE_PENDING_BIT, &dd->dd_flag)) { - bio_endio(bio, -ENXIO); - return; + if (unlikely(dd->dd_flag & MTIP_DDF_STOP_IO)) { + if (unlikely(test_bit(MTIP_DDF_REMOVE_PENDING_BIT, + &dd->dd_flag))) { + bio_endio(bio, -ENXIO); + return; + } + if (unlikely(test_bit(MTIP_DDF_OVER_TEMP_BIT, &dd->dd_flag))) { + bio_endio(bio, -ENODATA); + return; + } + if (unlikely(test_bit(MTIP_DDF_WRITE_PROTECT_BIT, + &dd->dd_flag) && + bio_data_dir(bio))) { + bio_endio(bio, -ENODATA); + return; + } } if (unlikely(!bio_has_data(bio))) { @@ -3599,7 +3669,7 @@ start_service_thread: dd, thd_name); if (IS_ERR(dd->mtip_svc_handler)) { - printk(KERN_ERR "mtip32xx: service thread failed to start\n"); + dev_err(&dd->pdev->dev, "service thread failed to start\n"); dd->mtip_svc_handler = NULL; rv = -EFAULT; goto kthread_run_error; @@ -3648,7 +3718,7 @@ static int mtip_block_remove(struct driver_data *dd) struct kobject *kobj; if (dd->mtip_svc_handler) { - set_bit(MTIP_PF_SVC_THD_SHOULD_STOP_BIT, &dd->port->flags); + set_bit(MTIP_PF_SVC_THD_STOP_BIT, &dd->port->flags); wake_up_interruptible(&dd->port->svc_wait); kthread_stop(dd->mtip_svc_handler); } diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h index 5ad2d79..4ef5833 100644 --- a/drivers/block/mtip32xx/mtip32xx.h +++ b/drivers/block/mtip32xx/mtip32xx.h @@ -34,8 +34,8 @@ /* offset of Device Control register in PCIe extended capabilites space */ #define PCIE_CONFIG_EXT_DEVICE_CONTROL_OFFSET 0x48 -/* # of times to retry timed out IOs */ -#define MTIP_MAX_RETRIES 5 +/* # of times to retry timed out/failed IOs */ +#define MTIP_MAX_RETRIES 2 /* Various timeout values in ms */ #define MTIP_NCQ_COMMAND_TIMEOUT_MS 5000 @@ -114,22 +114,32 @@ #define __force_bit2int (unsigned int __force) /* below are bit numbers in 'flags' defined in mtip_port */ -#define MTIP_PF_IC_ACTIVE_BIT 0 -#define MTIP_PF_EH_ACTIVE_BIT 1 -#define MTIP_PF_SVC_THD_ACTIVE_BIT 2 -#define MTIP_PF_ISSUE_CMDS_BIT 4 -#define MTIP_PF_REBUILD_BIT 5 -#define MTIP_PF_SVC_THD_SHOULD_STOP_BIT 8 +#define MTIP_PF_IC_ACTIVE_BIT 0 /* pio/ioctl */ +#define MTIP_PF_EH_ACTIVE_BIT 1 /* error handling */ +#define MTIP_PF_SE_ACTIVE_BIT 2 /* secure erase */ +#define MTIP_PF_DM_ACTIVE_BIT 3 /* download microcde */ +#define MTIP_PF_PAUSE_IO ((1 << MTIP_PF_IC_ACTIVE_BIT) | \ + (1 << MTIP_PF_EH_ACTIVE_BIT) | \ + (1 << MTIP_PF_SE_ACTIVE_BIT) | \ + (1 << MTIP_PF_DM_ACTIVE_BIT)) + +#define MTIP_PF_SVC_THD_ACTIVE_BIT 4 +#define MTIP_PF_ISSUE_CMDS_BIT 5 +#define MTIP_PF_REBUILD_BIT 6 +#define MTIP_PF_SVC_THD_STOP_BIT 8 /* below are bit numbers in 'dd_flag' defined in driver_data */ #define MTIP_DDF_REMOVE_PENDING_BIT 1 -#define MTIP_DDF_RESUME_BIT 2 -#define MTIP_DDF_CLEANUP_BIT 3 -#define MTIP_DDF_INIT_DONE_BIT 4 +#define MTIP_DDF_OVER_TEMP_BIT 2 +#define MTIP_DDF_WRITE_PROTECT_BIT 3 +#define MTIP_DDF_STOP_IO ((1 << MTIP_DDF_REMOVE_PENDING_BIT) | \ + (1 << MTIP_DDF_OVER_TEMP_BIT) | \ + (1 << MTIP_DDF_WRITE_PROTECT_BIT)) -#define MTIP_DDF_WRITE_PROTECT_BIT 5 -#define MTIP_DDF_OVER_TEMP_BIT 6 -#define MTIP_DDF_REBUILD_FAILED_BIT 7 +#define MTIP_DDF_CLEANUP_BIT 5 +#define MTIP_DDF_RESUME_BIT 6 +#define MTIP_DDF_INIT_DONE_BIT 7 +#define MTIP_DDF_REBUILD_FAILED_BIT 8 __packed struct smart_attr{ u8 attr_id; @@ -393,6 +403,7 @@ struct mtip_port { * Timer used to complete commands that have been active for too long. */ struct timer_list cmd_timer; + unsigned long ic_pause_timer; /* * Semaphore used to block threads if there are no * command slots available. -- cgit v0.10.2 From 95fea2f1d90626498e2495a81fe5aab7fba9fb3f Mon Sep 17 00:00:00 2001 From: Asai Thambi S P Date: Mon, 9 Apr 2012 08:35:39 +0200 Subject: mtip32xx: dump tagmap on failure Dump tagmap on failure, instead of individual tags. Signed-off-by: Asai Thambi S P Signed-off-by: Jens Axboe diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index 47404ef..00f9fc9 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -526,6 +526,25 @@ static void mtip_restart_port(struct mtip_port *port) } /* + * Helper function for tag logging + */ +static void print_tags(struct driver_data *dd, + char *msg, + unsigned long *tagbits, + int cnt) +{ + unsigned char tagmap[128]; + int group, tagmap_len = 0; + + memset(tagmap, 0, sizeof(tagmap)); + for (group = SLOTBITS_IN_LONGS; group > 0; group--) + tagmap_len = sprintf(tagmap + tagmap_len, "%016lX ", + tagbits[group-1]); + dev_warn(&dd->pdev->dev, + "%d command(s) %s: tagmap [%s]", cnt, msg, tagmap); +} + +/* * Called periodically to see if any read/write commands are * taking too long to complete. * @@ -542,7 +561,7 @@ static void mtip_timeout_function(unsigned long int data) int tag, cmdto_cnt = 0; unsigned int bit, group; unsigned int num_command_slots = port->dd->slot_groups * 32; - unsigned long to; + unsigned long to, tagaccum[SLOTBITS_IN_LONGS]; if (unlikely(!port)) return; @@ -552,6 +571,8 @@ static void mtip_timeout_function(unsigned long int data) jiffies + msecs_to_jiffies(30000)); return; } + /* clear the tag accumulator */ + memset(tagaccum, 0, SLOTBITS_IN_LONGS * sizeof(long)); for (tag = 0; tag < num_command_slots; tag++) { /* @@ -569,9 +590,7 @@ static void mtip_timeout_function(unsigned long int data) command = &port->commands[tag]; fis = (struct host_to_dev_fis *) command->command; - dev_warn(&port->dd->pdev->dev, - "Timeout for command tag %d\n", tag); - + set_bit(tag, tagaccum); cmdto_cnt++; if (cmdto_cnt == 1) set_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags); @@ -608,9 +627,8 @@ static void mtip_timeout_function(unsigned long int data) } if (cmdto_cnt && !test_bit(MTIP_PF_IC_ACTIVE_BIT, &port->flags)) { - dev_warn(&port->dd->pdev->dev, - "%d commands timed out: restarting port", - cmdto_cnt); + print_tags(port->dd, "timed out", tagaccum, cmdto_cnt); + mtip_restart_port(port); clear_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags); wake_up_interruptible(&port->svc_wait); @@ -733,23 +751,6 @@ static void mtip_null_completion(struct mtip_port *port, return; } -/* - * Helper function for tag logging - */ -static void print_tags(struct driver_data *dd, - char *msg, - unsigned long *tagbits) -{ - unsigned int tag, count = 0; - - for (tag = 0; tag < (dd->slot_groups) * 32; tag++) { - if (test_bit(tag, tagbits)) - count++; - } - if (count) - dev_info(&dd->pdev->dev, "%s [%i tags]\n", msg, count); -} - static int mtip_read_log_page(struct mtip_port *port, u8 page, u16 *buffer, dma_addr_t buffer_dma, unsigned int sectors); static int mtip_get_smart_attr(struct mtip_port *port, unsigned int id, @@ -770,6 +771,7 @@ static void mtip_handle_tfe(struct driver_data *dd) u32 completed; struct host_to_dev_fis *fis; unsigned long tagaccum[SLOTBITS_IN_LONGS]; + unsigned int cmd_cnt = 0; unsigned char *buf; char *fail_reason = NULL; int fail_all_ncq_write = 0, fail_all_ncq_cmds = 0; @@ -781,6 +783,9 @@ static void mtip_handle_tfe(struct driver_data *dd) /* Stop the timer to prevent command timeouts. */ del_timer(&port->cmd_timer); + /* clear the tag accumulator */ + memset(tagaccum, 0, SLOTBITS_IN_LONGS * sizeof(long)); + /* Set eh_active */ set_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags); @@ -791,9 +796,6 @@ static void mtip_handle_tfe(struct driver_data *dd) /* clear completed status register in the hardware.*/ writel(completed, port->completed[group]); - /* clear the tag accumulator */ - memset(tagaccum, 0, SLOTBITS_IN_LONGS * sizeof(long)); - /* Process successfully completed commands */ for (bit = 0; bit < 32 && completed; bit++) { if (!(completed & (1<commands[tag]; if (likely(cmd->comp_func)) { set_bit(tag, tagaccum); + cmd_cnt++; atomic_set(&cmd->active, 0); cmd->comp_func(port, tag, @@ -824,7 +827,8 @@ static void mtip_handle_tfe(struct driver_data *dd) } } } - print_tags(dd, "TFE tags completed:", tagaccum); + + print_tags(dd, "completed (TFE)", tagaccum, cmd_cnt); /* Restart the port */ mdelay(20); @@ -934,7 +938,7 @@ static void mtip_handle_tfe(struct driver_data *dd) tag); } } - print_tags(dd, "TFE tags reissued:", tagaccum); + print_tags(dd, "reissued (TFE)", tagaccum, cmd_cnt); /* clear eh_active */ clear_bit(MTIP_PF_EH_ACTIVE_BIT, &port->flags); -- cgit v0.10.2 From 511d63cb19329235bc9298b64010ec494b5e1408 Mon Sep 17 00:00:00 2001 From: Horia Geanta Date: Fri, 30 Mar 2012 17:49:53 +0300 Subject: crypto: talitos - properly lock access to global talitos registers Access to global talitos registers must be protected for the case when affinities are configured such that primary and secondary talitos irqs run on different cpus. Signed-off-by: Horia Geanta Signed-off-by: Kim Phillips Signed-off-by: Herbert Xu diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index dc641c7..921039e 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -124,6 +124,9 @@ struct talitos_private { void __iomem *reg; int irq[2]; + /* SEC global registers lock */ + spinlock_t reg_lock ____cacheline_aligned; + /* SEC version geometry (from device tree node) */ unsigned int num_channels; unsigned int chfifo_len; @@ -412,6 +415,7 @@ static void talitos_done_##name(unsigned long data) \ { \ struct device *dev = (struct device *)data; \ struct talitos_private *priv = dev_get_drvdata(dev); \ + unsigned long flags; \ \ if (ch_done_mask & 1) \ flush_channel(dev, 0, 0, 0); \ @@ -427,8 +431,10 @@ static void talitos_done_##name(unsigned long data) \ out: \ /* At this point, all completed channels have been processed */ \ /* Unmask done interrupts for channels completed later on. */ \ + spin_lock_irqsave(&priv->reg_lock, flags); \ setbits32(priv->reg + TALITOS_IMR, ch_done_mask); \ setbits32(priv->reg + TALITOS_IMR_LO, TALITOS_IMR_LO_INIT); \ + spin_unlock_irqrestore(&priv->reg_lock, flags); \ } DEF_TALITOS_DONE(4ch, TALITOS_ISR_4CHDONE) DEF_TALITOS_DONE(ch0_2, TALITOS_ISR_CH_0_2_DONE) @@ -619,22 +625,28 @@ static irqreturn_t talitos_interrupt_##name(int irq, void *data) \ struct device *dev = data; \ struct talitos_private *priv = dev_get_drvdata(dev); \ u32 isr, isr_lo; \ + unsigned long flags; \ \ + spin_lock_irqsave(&priv->reg_lock, flags); \ isr = in_be32(priv->reg + TALITOS_ISR); \ isr_lo = in_be32(priv->reg + TALITOS_ISR_LO); \ /* Acknowledge interrupt */ \ out_be32(priv->reg + TALITOS_ICR, isr & (ch_done_mask | ch_err_mask)); \ out_be32(priv->reg + TALITOS_ICR_LO, isr_lo); \ \ - if (unlikely((isr & ~TALITOS_ISR_4CHDONE) & ch_err_mask || isr_lo)) \ - talitos_error(dev, isr, isr_lo); \ - else \ + if (unlikely(isr & ch_err_mask || isr_lo)) { \ + spin_unlock_irqrestore(&priv->reg_lock, flags); \ + talitos_error(dev, isr & ch_err_mask, isr_lo); \ + } \ + else { \ if (likely(isr & ch_done_mask)) { \ /* mask further done interrupts. */ \ clrbits32(priv->reg + TALITOS_IMR, ch_done_mask); \ /* done_task will unmask done interrupts at exit */ \ tasklet_schedule(&priv->done_task[tlet]); \ } \ + spin_unlock_irqrestore(&priv->reg_lock, flags); \ + } \ \ return (isr & (ch_done_mask | ch_err_mask) || isr_lo) ? IRQ_HANDLED : \ IRQ_NONE; \ @@ -2719,6 +2731,8 @@ static int talitos_probe(struct platform_device *ofdev) priv->ofdev = ofdev; + spin_lock_init(&priv->reg_lock); + err = talitos_probe_irq(ofdev); if (err) goto err_out; -- cgit v0.10.2 From 556a0442e08a8bc8541587a349cbf26ed14ec6de Mon Sep 17 00:00:00 2001 From: Chris Rankin Date: Fri, 6 Apr 2012 18:38:18 -0300 Subject: [media] dvb_frontend: regression fix: userspace ABI broken for xine The commit e399ce77e6e has broken the DVB ABI for xine: The problem is that xine is expecting every event after a successful FE_SET_FRONTEND ioctl to have a non-zero frequency parameter, regardless of whether the tuning process has LOCKed yet. What used to happen is that the events inherited the initial tuning parameters from the FE_SET_FRONTEND call. However, the fepriv->parameters_out struct is now not initialised until the status contains the FE_HAS_LOCK bit. You might argue that this behaviour is intentional, except that if an application other than xine uses the DVB adapter and manages to set the parameters_out.frequency field to something other than zero, then xine no longer has any problems until either the adapter is replugged or the kernel modules reloaded. This can only mean that the fepriv->parameters_out struct still contains the (stale) tuning information from the previous application. Signed-off-by: Chris Rankin Cc: stable@kernel.org # for kernel version 3.3 Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c index 4555baa..e721975 100644 --- a/drivers/media/dvb/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb/dvb-core/dvb_frontend.c @@ -143,6 +143,8 @@ struct dvb_frontend_private { static void dvb_frontend_wakeup(struct dvb_frontend *fe); static int dtv_get_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *p_out); +static int dtv_property_legacy_params_sync(struct dvb_frontend *fe, + struct dvb_frontend_parameters *p); static bool has_get_frontend(struct dvb_frontend *fe) { @@ -697,6 +699,7 @@ restart: fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; fepriv->delay = HZ / 2; } + dtv_property_legacy_params_sync(fe, &fepriv->parameters_out); fe->ops.read_status(fe, &s); if (s != fepriv->status) { dvb_frontend_add_event(fe, s); /* update event list */ @@ -1833,6 +1836,13 @@ static int dtv_set_frontend(struct dvb_frontend *fe) return -EINVAL; /* + * Initialize output parameters to match the values given by + * the user. FE_SET_FRONTEND triggers an initial frontend event + * with status = 0, which copies output parameters to userspace. + */ + dtv_property_legacy_params_sync(fe, &fepriv->parameters_out); + + /* * Be sure that the bandwidth will be filled for all * non-satellite systems, as tuners need to know what * low pass/Nyquist half filter should be applied, in -- cgit v0.10.2 From bc169e35e3a72c6888b7d12f50f2c4063436d834 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sat, 31 Mar 2012 05:18:19 -0300 Subject: [media] ivtv: Fix AUDIO_(BILINGUAL_)CHANNEL_SELECT regression When I converted ivtv to the new decoder API I introduced a regression in the support of the old channel select API. Thanks to Martin Dauskardt for reporting this. Signed-off-by: Hans Verkuil Reviewed-by: Andy Walls Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/ivtv/ivtv-ioctl.c b/drivers/media/video/ivtv/ivtv-ioctl.c index 5452bee..989e556 100644 --- a/drivers/media/video/ivtv/ivtv-ioctl.c +++ b/drivers/media/video/ivtv/ivtv-ioctl.c @@ -1763,13 +1763,13 @@ static int ivtv_decoder_ioctls(struct file *filp, unsigned int cmd, void *arg) IVTV_DEBUG_IOCTL("AUDIO_CHANNEL_SELECT\n"); if (iarg > AUDIO_STEREO_SWAPPED) return -EINVAL; - return v4l2_ctrl_s_ctrl(itv->ctrl_audio_playback, iarg); + return v4l2_ctrl_s_ctrl(itv->ctrl_audio_playback, iarg + 1); case AUDIO_BILINGUAL_CHANNEL_SELECT: IVTV_DEBUG_IOCTL("AUDIO_BILINGUAL_CHANNEL_SELECT\n"); if (iarg > AUDIO_STEREO_SWAPPED) return -EINVAL; - return v4l2_ctrl_s_ctrl(itv->ctrl_audio_multilingual_playback, iarg); + return v4l2_ctrl_s_ctrl(itv->ctrl_audio_multilingual_playback, iarg + 1); default: return -EINVAL; -- cgit v0.10.2 From 4da28766140449e04270246fae310c137180652d Mon Sep 17 00:00:00 2001 From: Malcolm Priestley Date: Sun, 25 Mar 2012 06:57:49 -0300 Subject: [media] it913x: fix firmware loading errors On some systems the device does not respond or give obscure values after cold, warm or firmware reboot. This patch retries to get chip version and type 5 times. If it fails it applies chip version 0x1 and type 0x9135. This patch does not fix warm cycle problems from other operating systems and indeed the reverse applies. Users should power off cold boot. Signed-off-by: Malcolm Priestley Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/dvb/dvb-usb/it913x.c b/drivers/media/dvb/dvb-usb/it913x.c index 3b7b102..482d249 100644 --- a/drivers/media/dvb/dvb-usb/it913x.c +++ b/drivers/media/dvb/dvb-usb/it913x.c @@ -238,12 +238,27 @@ static int it913x_read_reg(struct usb_device *udev, u32 reg) static u32 it913x_query(struct usb_device *udev, u8 pro) { - int ret; + int ret, i; u8 data[4]; - ret = it913x_io(udev, READ_LONG, pro, CMD_DEMOD_READ, - 0x1222, 0, &data[0], 3); + u8 ver; + + for (i = 0; i < 5; i++) { + ret = it913x_io(udev, READ_LONG, pro, CMD_DEMOD_READ, + 0x1222, 0, &data[0], 3); + ver = data[0]; + if (ver > 0 && ver < 3) + break; + msleep(100); + } - it913x_config.chip_ver = data[0]; + if (ver < 1 || ver > 2) { + info("Failed to identify chip version applying 1"); + it913x_config.chip_ver = 0x1; + it913x_config.chip_type = 0x9135; + return 0; + } + + it913x_config.chip_ver = ver; it913x_config.chip_type = (u16)(data[2] << 8) + data[1]; info("Chip Version=%02x Chip Type=%04x", it913x_config.chip_ver, @@ -660,30 +675,41 @@ static int it913x_download_firmware(struct usb_device *udev, if ((packet_size > min_pkt) || (i == fw->size)) { fw_data = (u8 *)(fw->data + pos); pos += packet_size; - if (packet_size > 0) - ret |= it913x_io(udev, WRITE_DATA, + if (packet_size > 0) { + ret = it913x_io(udev, WRITE_DATA, DEV_0, CMD_SCATTER_WRITE, 0, 0, fw_data, packet_size); + if (ret < 0) + break; + } udelay(1000); } } i++; } - ret |= it913x_io(udev, WRITE_CMD, DEV_0, CMD_BOOT, 0, 0, NULL, 0); - - msleep(100); - if (ret < 0) - info("FRM Firmware Download Failed (%04x)" , ret); + info("FRM Firmware Download Failed (%d)" , ret); else info("FRM Firmware Download Completed - Resetting Device"); - ret |= it913x_return_status(udev); + msleep(30); + + ret = it913x_io(udev, WRITE_CMD, DEV_0, CMD_BOOT, 0, 0, NULL, 0); + if (ret < 0) + info("FRM Device not responding to reboot"); + + ret = it913x_return_status(udev); + if (ret == 0) { + info("FRM Failed to reboot device"); + return -ENODEV; + } msleep(30); - ret |= it913x_wr_reg(udev, DEV_0, I2C_CLK, I2C_CLK_400); + ret = it913x_wr_reg(udev, DEV_0, I2C_CLK, I2C_CLK_400); + + msleep(30); /* Tuner function */ if (it913x_config.dual_mode) @@ -901,5 +927,5 @@ module_usb_driver(it913x_driver); MODULE_AUTHOR("Malcolm Priestley "); MODULE_DESCRIPTION("it913x USB 2 Driver"); -MODULE_VERSION("1.27"); +MODULE_VERSION("1.28"); MODULE_LICENSE("GPL"); -- cgit v0.10.2 From c065f5b4ee4487bbd411049be6eea1b59a90db96 Mon Sep 17 00:00:00 2001 From: Hans Petter Selasky Date: Tue, 27 Mar 2012 12:53:19 -0300 Subject: [media] dvb_frontend: fix compiler warning has_get_frontend() should return a boolean, not a pointer. Signed-off-by: Hans Petter Selasky Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c index e721975..39696c6 100644 --- a/drivers/media/dvb/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb/dvb-core/dvb_frontend.c @@ -148,7 +148,7 @@ static int dtv_property_legacy_params_sync(struct dvb_frontend *fe, static bool has_get_frontend(struct dvb_frontend *fe) { - return fe->ops.get_frontend; + return fe->ops.get_frontend != NULL; } /* -- cgit v0.10.2 From d3a92d624806a7964ca3122f917ff2ba69e4cdd8 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sun, 1 Apr 2012 15:24:48 -0300 Subject: [media] Drivers/media/radio: Fix build error On Sunday, April 01, 2012 21:09:34 Tracey Dent wrote: > radio-maxiradio depends on SND_FM801_TEA575X_BOOL to build or will > result in an build error such as: > > Kernel: arch/x86/boot/bzImage is ready (#1) > ERROR: "snd_tea575x_init" [drivers/media/radio/radio-maxiradio.ko] undefined! > ERROR: "snd_tea575x_exit" [drivers/media/radio/radio-maxiradio.ko] undefined! > WARNING: modpost: Found 6 section mismatch(es). > To see full details build your kernel with: > 'make CONFIG_DEBUG_SECTION_MISMATCH=y' > make[1]: *** [__modpost] Error 1 > make: *** [modules] Error 2 > > Select CONFIG_SND_TEA575X to fixes problem and enable > the driver to be built as desired. > > v2: > instead of selecting CONFIG_SND_FM801_TEA575X_BOOL, select > CONFIG_SND_TEA575X, which in turns selects CONFIG_SND_FM801_TEA575X_BOOL > and any other dependencies for it to build. No, this is the correct patch: RADIO_MAXIRADIO should be treated just like RADIO_SF16FMR2, I just didn't realize at the time that it had to be added as a SND_TEA575X dependency. Signed-off-by: Hans Verkuil Tested-by: Shea Levy Acked-by: Mauro Carvalho Chehab Signed-off-by: Mauro Carvalho Chehab diff --git a/sound/pci/Kconfig b/sound/pci/Kconfig index 8816804..5ca0939 100644 --- a/sound/pci/Kconfig +++ b/sound/pci/Kconfig @@ -2,8 +2,8 @@ config SND_TEA575X tristate - depends on SND_FM801_TEA575X_BOOL || SND_ES1968_RADIO || RADIO_SF16FMR2 - default SND_FM801 || SND_ES1968 || RADIO_SF16FMR2 + depends on SND_FM801_TEA575X_BOOL || SND_ES1968_RADIO || RADIO_SF16FMR2 || RADIO_MAXIRADIO + default SND_FM801 || SND_ES1968 || RADIO_SF16FMR2 || RADIO_MAXIRADIO menuconfig SND_PCI bool "PCI sound devices" -- cgit v0.10.2 From ed0ee0ce0a3224dab5caa088a5f8b6df25924276 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Tue, 27 Mar 2012 05:51:00 -0300 Subject: [media] uvcvideo: Fix race-related crash in uvc_video_clock_update() The driver frees the clock samples buffer before stopping the video buffers queue. If a DQBUF call arrives in-between, uvc_video_clock_update() will be called with a NULL clock samples buffer, leading to a crash. This occurs very frequently when using the webcam with the flash browser plugin. Move clock initialization/cleanup to uvc_video_enable() in order to free the clock samples buffer after the queue is stopped. Make sure the clock is reset at resume time to avoid miscalculating timestamps. Signed-off-by: Laurent Pinchart Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/uvc/uvc_video.c b/drivers/media/video/uvc/uvc_video.c index 4a44f9a..b76b0ac 100644 --- a/drivers/media/video/uvc/uvc_video.c +++ b/drivers/media/video/uvc/uvc_video.c @@ -468,22 +468,30 @@ uvc_video_clock_decode(struct uvc_streaming *stream, struct uvc_buffer *buf, spin_unlock_irqrestore(&stream->clock.lock, flags); } -static int uvc_video_clock_init(struct uvc_streaming *stream) +static void uvc_video_clock_reset(struct uvc_streaming *stream) { struct uvc_clock *clock = &stream->clock; - spin_lock_init(&clock->lock); clock->head = 0; clock->count = 0; - clock->size = 32; clock->last_sof = -1; clock->sof_offset = -1; +} + +static int uvc_video_clock_init(struct uvc_streaming *stream) +{ + struct uvc_clock *clock = &stream->clock; + + spin_lock_init(&clock->lock); + clock->size = 32; clock->samples = kmalloc(clock->size * sizeof(*clock->samples), GFP_KERNEL); if (clock->samples == NULL) return -ENOMEM; + uvc_video_clock_reset(stream); + return 0; } @@ -1424,8 +1432,6 @@ static void uvc_uninit_video(struct uvc_streaming *stream, int free_buffers) if (free_buffers) uvc_free_urb_buffers(stream); - - uvc_video_clock_cleanup(stream); } /* @@ -1555,10 +1561,6 @@ static int uvc_init_video(struct uvc_streaming *stream, gfp_t gfp_flags) uvc_video_stats_start(stream); - ret = uvc_video_clock_init(stream); - if (ret < 0) - return ret; - if (intf->num_altsetting > 1) { struct usb_host_endpoint *best_ep = NULL; unsigned int best_psize = 3 * 1024; @@ -1683,6 +1685,8 @@ int uvc_video_resume(struct uvc_streaming *stream, int reset) stream->frozen = 0; + uvc_video_clock_reset(stream); + ret = uvc_commit_video(stream, &stream->ctrl); if (ret < 0) { uvc_queue_enable(&stream->queue, 0); @@ -1819,25 +1823,35 @@ int uvc_video_enable(struct uvc_streaming *stream, int enable) uvc_uninit_video(stream, 1); usb_set_interface(stream->dev->udev, stream->intfnum, 0); uvc_queue_enable(&stream->queue, 0); + uvc_video_clock_cleanup(stream); return 0; } - ret = uvc_queue_enable(&stream->queue, 1); + ret = uvc_video_clock_init(stream); if (ret < 0) return ret; + ret = uvc_queue_enable(&stream->queue, 1); + if (ret < 0) + goto error_queue; + /* Commit the streaming parameters. */ ret = uvc_commit_video(stream, &stream->ctrl); - if (ret < 0) { - uvc_queue_enable(&stream->queue, 0); - return ret; - } + if (ret < 0) + goto error_commit; ret = uvc_init_video(stream, GFP_KERNEL); - if (ret < 0) { - usb_set_interface(stream->dev->udev, stream->intfnum, 0); - uvc_queue_enable(&stream->queue, 0); - } + if (ret < 0) + goto error_video; + + return 0; + +error_video: + usb_set_interface(stream->dev->udev, stream->intfnum, 0); +error_commit: + uvc_queue_enable(&stream->queue, 0); +error_queue: + uvc_video_clock_cleanup(stream); return ret; } -- cgit v0.10.2 From 6ee0b693bdb8ec56689e0d1cc533b16466fda048 Mon Sep 17 00:00:00 2001 From: Changli Gao Date: Sun, 1 Apr 2012 17:25:06 +0000 Subject: netfilter: nf_ct_tcp: don't scale the size of the window up twice For a picked up connection, the window win is scaled twice: one is by the initialization code, and the other is by the sender updating code. I use the temporary variable swin instead of modifying the variable win. Signed-off-by: Changli Gao Acked-by: Jozsef Kadlecsik Signed-off-by: Pablo Neira Ayuso diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c index 361eade..0d07a1d 100644 --- a/net/netfilter/nf_conntrack_proto_tcp.c +++ b/net/netfilter/nf_conntrack_proto_tcp.c @@ -584,8 +584,8 @@ static bool tcp_in_window(const struct nf_conn *ct, * Let's try to use the data from the packet. */ sender->td_end = end; - win <<= sender->td_scale; - sender->td_maxwin = (win == 0 ? 1 : win); + swin = win << sender->td_scale; + sender->td_maxwin = (swin == 0 ? 1 : swin); sender->td_maxend = end + sender->td_maxwin; /* * We haven't seen traffic in the other direction yet -- cgit v0.10.2 From 95ad2f873d5d404dc9ebc2377de0b762346346c0 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Fri, 6 Apr 2012 18:12:54 +0200 Subject: netfilter: ip6_tables: ip6t_ext_hdr is now static inline We may hit this in xt_LOG: net/built-in.o:xt_LOG.c:function dump_ipv6_packet: error: undefined reference to 'ip6t_ext_hdr' happens with these config options: CONFIG_NETFILTER_XT_TARGET_LOG=y CONFIG_IP6_NF_IPTABLES=m ip6t_ext_hdr is fairly small and it is called in the packet path. Make it static inline. Reported-by: Simon Kirby Signed-off-by: Pablo Neira Ayuso diff --git a/include/linux/netfilter_ipv6/ip6_tables.h b/include/linux/netfilter_ipv6/ip6_tables.h index f549adc..1bc898b 100644 --- a/include/linux/netfilter_ipv6/ip6_tables.h +++ b/include/linux/netfilter_ipv6/ip6_tables.h @@ -287,7 +287,17 @@ extern unsigned int ip6t_do_table(struct sk_buff *skb, struct xt_table *table); /* Check for an extension */ -extern int ip6t_ext_hdr(u8 nexthdr); +static inline int +ip6t_ext_hdr(u8 nexthdr) +{ return (nexthdr == IPPROTO_HOPOPTS) || + (nexthdr == IPPROTO_ROUTING) || + (nexthdr == IPPROTO_FRAGMENT) || + (nexthdr == IPPROTO_ESP) || + (nexthdr == IPPROTO_AH) || + (nexthdr == IPPROTO_NONE) || + (nexthdr == IPPROTO_DSTOPTS); +} + /* find specified header and get offset to it */ extern int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset, int target, unsigned short *fragoff); diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c index 94874b0..9d4e155 100644 --- a/net/ipv6/netfilter/ip6_tables.c +++ b/net/ipv6/netfilter/ip6_tables.c @@ -78,19 +78,6 @@ EXPORT_SYMBOL_GPL(ip6t_alloc_initial_table); Hence the start of any table is given by get_table() below. */ -/* Check for an extension */ -int -ip6t_ext_hdr(u8 nexthdr) -{ - return (nexthdr == IPPROTO_HOPOPTS) || - (nexthdr == IPPROTO_ROUTING) || - (nexthdr == IPPROTO_FRAGMENT) || - (nexthdr == IPPROTO_ESP) || - (nexthdr == IPPROTO_AH) || - (nexthdr == IPPROTO_NONE) || - (nexthdr == IPPROTO_DSTOPTS); -} - /* Returns whether matches rule or not. */ /* Performance critical - called for every packet */ static inline bool @@ -2366,7 +2353,6 @@ int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset, EXPORT_SYMBOL(ip6t_register_table); EXPORT_SYMBOL(ip6t_unregister_table); EXPORT_SYMBOL(ip6t_do_table); -EXPORT_SYMBOL(ip6t_ext_hdr); EXPORT_SYMBOL(ipv6_find_hdr); module_init(ip6_tables_init); -- cgit v0.10.2 From b78f29ca0516266431688c5eb42d39ce42ec039a Mon Sep 17 00:00:00 2001 From: Wang YanQing Date: Sun, 1 Apr 2012 08:54:02 +0800 Subject: video:uvesafb: Fix oops that uvesafb try to execute NX-protected page This patch fix the oops below that catched in my machine [ 81.560602] uvesafb: NVIDIA Corporation, GT216 Board - 0696a290, Chip Rev , OEM: NVIDIA, VBE v3.0 [ 81.609384] uvesafb: protected mode interface info at c000:d350 [ 81.609388] uvesafb: pmi: set display start = c00cd3b3, set palette = c00cd40e [ 81.609390] uvesafb: pmi: ports = 3b4 3b5 3ba 3c0 3c1 3c4 3c5 3c6 3c7 3c8 3c9 3cc 3ce 3cf 3d0 3d1 3d2 3d3 3d4 3d5 3da [ 81.614558] uvesafb: VBIOS/hardware doesn't support DDC transfers [ 81.614562] uvesafb: no monitor limits have been set, default refresh rate will be used [ 81.614994] uvesafb: scrolling: ypan using protected mode interface, yres_virtual=4915 [ 81.744147] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) [ 81.744153] BUG: unable to handle kernel paging request at c00cd3b3 [ 81.744159] IP: [] 0xc00cd3b2 [ 81.744167] *pdpt = 00000000016d6001 *pde = 0000000001c7b067 *pte = 80000000000cd163 [ 81.744171] Oops: 0011 [#1] SMP [ 81.744174] Modules linked in: uvesafb(+) cfbcopyarea cfbimgblt cfbfillrect [ 81.744178] [ 81.744181] Pid: 3497, comm: modprobe Not tainted 3.3.0-rc4NX+ #71 Acer Aspire 4741 /Aspire 4741 [ 81.744185] EIP: 0060:[] EFLAGS: 00010246 CPU: 0 [ 81.744187] EIP is at 0xc00cd3b3 [ 81.744189] EAX: 00004f07 EBX: 00000000 ECX: 00000000 EDX: 00000000 [ 81.744191] ESI: f763f000 EDI: f763f6e8 EBP: f57f3a0c ESP: f57f3a00 [ 81.744192] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 [ 81.744195] Process modprobe (pid: 3497, ti=f57f2000 task=f748c600 task.ti=f57f2000) [ 81.744196] Stack: [ 81.744197] f82512c5 f759341c 00000000 f57f3a30 c124a9bc 00000001 00000001 000001e0 [ 81.744202] f8251280 f763f000 f7593400 00000000 f57f3a40 c12598dd f5c0c000 00000000 [ 81.744206] f57f3b10 c1255efe c125a21a 00000006 f763f09c 00000000 c1c6cb60 f7593400 [ 81.744210] Call Trace: [ 81.744215] [] ? uvesafb_pan_display+0x45/0x60 [uvesafb] [ 81.744222] [] fb_pan_display+0x10c/0x160 [ 81.744226] [] ? uvesafb_vbe_find_mode+0x180/0x180 [uvesafb] [ 81.744230] [] bit_update_start+0x1d/0x50 [ 81.744232] [] fbcon_switch+0x39e/0x550 [ 81.744235] [] ? bit_cursor+0x4ea/0x560 [ 81.744240] [] redraw_screen+0x12b/0x220 [ 81.744245] [] ? tty_do_resize+0x3b/0xc0 [ 81.744247] [] vc_do_resize+0x3d2/0x3e0 [ 81.744250] [] vc_resize+0x14/0x20 [ 81.744253] [] fbcon_init+0x29d/0x500 [ 81.744255] [] ? set_inverse_trans_unicode+0xe4/0x110 [ 81.744258] [] visual_init+0xb8/0x150 [ 81.744261] [] bind_con_driver+0x16c/0x360 [ 81.744264] [] ? register_con_driver+0x6e/0x190 [ 81.744267] [] take_over_console+0x41/0x50 [ 81.744269] [] fbcon_takeover+0x6a/0xd0 [ 81.744272] [] fbcon_event_notify+0x758/0x790 [ 81.744277] [] notifier_call_chain+0x42/0xb0 [ 81.744280] [] __blocking_notifier_call_chain+0x60/0x90 [ 81.744283] [] blocking_notifier_call_chain+0x1a/0x20 [ 81.744285] [] fb_notifier_call_chain+0x11/0x20 [ 81.744288] [] register_framebuffer+0x1d9/0x2b0 [ 81.744293] [] ? ioremap_wc+0x33/0x40 [ 81.744298] [] uvesafb_probe+0xaba/0xc40 [uvesafb] [ 81.744302] [] platform_drv_probe+0xf/0x20 [ 81.744306] [] driver_probe_device+0x68/0x170 [ 81.744309] [] __device_attach+0x41/0x50 [ 81.744313] [] bus_for_each_drv+0x48/0x70 [ 81.744316] [] device_attach+0x83/0xa0 [ 81.744319] [] ? __driver_attach+0x90/0x90 [ 81.744321] [] bus_probe_device+0x6f/0x90 [ 81.744324] [] device_add+0x5e5/0x680 [ 81.744329] [] ? kvasprintf+0x43/0x60 [ 81.744332] [] ? kobject_set_name_vargs+0x64/0x70 [ 81.744335] [] ? kobject_set_name_vargs+0x64/0x70 [ 81.744339] [] platform_device_add+0xff/0x1b0 [ 81.744343] [] uvesafb_init+0x50/0x9b [uvesafb] [ 81.744346] [] do_one_initcall+0x2f/0x170 [ 81.744350] [] ? uvesafb_is_valid_mode+0x66/0x66 [uvesafb] [ 81.744355] [] sys_init_module+0xf4/0x1410 [ 81.744359] [] ? vfsmount_lock_local_unlock_cpu+0x30/0x30 [ 81.744363] [] sysenter_do_call+0x12/0x36 [ 81.744365] Code: f5 00 00 00 32 f6 66 8b da 66 d1 e3 66 ba d4 03 8a e3 b0 1c 66 ef b0 1e 66 ef 8a e7 b0 1d 66 ef b0 1f 66 ef e8 fa 00 00 00 61 c3 <60> e8 c8 00 00 00 66 8b f3 66 8b da 66 ba d4 03 b0 0c 8a e5 66 [ 81.744388] EIP: [] 0xc00cd3b3 SS:ESP 0068:f57f3a00 [ 81.744391] CR2: 00000000c00cd3b3 [ 81.744393] ---[ end trace 18b2c87c925b54d6 ]--- Signed-off-by: Wang YanQing Cc: Michal Januszewski Cc: Alan Cox Signed-off-by: Florian Tobias Schandinat Cc: stable@vger.kernel.org diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c index 260cca7..26e83d7 100644 --- a/drivers/video/uvesafb.c +++ b/drivers/video/uvesafb.c @@ -815,8 +815,15 @@ static int __devinit uvesafb_vbe_init(struct fb_info *info) par->pmi_setpal = pmi_setpal; par->ypan = ypan; - if (par->pmi_setpal || par->ypan) - uvesafb_vbe_getpmi(task, par); + if (par->pmi_setpal || par->ypan) { + if (__supported_pte_mask & _PAGE_NX) { + par->pmi_setpal = par->ypan = 0; + printk(KERN_WARNING "uvesafb: NX protection is actively." + "We have better not to use the PMI.\n"); + } else { + uvesafb_vbe_getpmi(task, par); + } + } #else /* The protected mode interface is not available on non-x86. */ par->pmi_setpal = par->ypan = 0; -- cgit v0.10.2 From 388bc26226807fbcf4c626b81bb17a2e74aa4b1b Mon Sep 17 00:00:00 2001 From: Shubhrajyoti D Date: Wed, 21 Mar 2012 17:22:22 +0530 Subject: omap-serial: Fix the error handling in the omap_serial probe The patch does the following - The pm_runtime_disable is called in the remove not in the error case of probe.The patch calls the pm_runtime_disable in the error case. - Calls pm_runtime_put in the error case. - The up is not freed in the error path. Fix the memory leak by using devm_* so that the memory need not be freed in the driver. - Also the iounmap is not called fix the same by calling using devm_ioremap. - Make the name of the error tags more meaningful. Cc: Mark Brown Cc: Govindraj.R Signed-off-by: Shubhrajyoti D Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c index 0121486..d00b38e 100644 --- a/drivers/tty/serial/omap-serial.c +++ b/drivers/tty/serial/omap-serial.c @@ -1381,29 +1381,24 @@ static int serial_omap_probe(struct platform_device *pdev) return -ENODEV; } - if (!request_mem_region(mem->start, resource_size(mem), + if (!devm_request_mem_region(&pdev->dev, mem->start, resource_size(mem), pdev->dev.driver->name)) { dev_err(&pdev->dev, "memory region already claimed\n"); return -EBUSY; } dma_rx = platform_get_resource_byname(pdev, IORESOURCE_DMA, "rx"); - if (!dma_rx) { - ret = -EINVAL; - goto err; - } + if (!dma_rx) + return -ENXIO; dma_tx = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx"); - if (!dma_tx) { - ret = -EINVAL; - goto err; - } + if (!dma_tx) + return -ENXIO; + + up = devm_kzalloc(&pdev->dev, sizeof(*up), GFP_KERNEL); + if (!up) + return -ENOMEM; - up = kzalloc(sizeof(*up), GFP_KERNEL); - if (up == NULL) { - ret = -ENOMEM; - goto do_release_region; - } up->pdev = pdev; up->port.dev = &pdev->dev; up->port.type = PORT_OMAP; @@ -1423,16 +1418,17 @@ static int serial_omap_probe(struct platform_device *pdev) dev_err(&pdev->dev, "failed to get alias/pdev id, errno %d\n", up->port.line); ret = -ENODEV; - goto err; + goto err_port_line; } sprintf(up->name, "OMAP UART%d", up->port.line); up->port.mapbase = mem->start; - up->port.membase = ioremap(mem->start, resource_size(mem)); + up->port.membase = devm_ioremap(&pdev->dev, mem->start, + resource_size(mem)); if (!up->port.membase) { dev_err(&pdev->dev, "can't ioremap UART\n"); ret = -ENOMEM; - goto err; + goto err_ioremap; } up->port.flags = omap_up_info->flags; @@ -1478,16 +1474,19 @@ static int serial_omap_probe(struct platform_device *pdev) ret = uart_add_one_port(&serial_omap_reg, &up->port); if (ret != 0) - goto do_release_region; + goto err_add_port; pm_runtime_put(&pdev->dev); platform_set_drvdata(pdev, up); return 0; -err: + +err_add_port: + pm_runtime_put(&pdev->dev); + pm_runtime_disable(&pdev->dev); +err_ioremap: +err_port_line: dev_err(&pdev->dev, "[UART%d]: failure [%s]: %d\n", pdev->id, __func__, ret); -do_release_region: - release_mem_region(mem->start, resource_size(mem)); return ret; } @@ -1499,8 +1498,6 @@ static int serial_omap_remove(struct platform_device *dev) pm_runtime_disable(&up->pdev->dev); uart_remove_one_port(&serial_omap_reg, &up->port); pm_qos_remove_request(&up->pm_qos_request); - - kfree(up); } platform_set_drvdata(dev, NULL); -- cgit v0.10.2 From ef37ea34cac19ef46173b26ee47a102f3b987d1e Mon Sep 17 00:00:00 2001 From: Tilman Schmidt Date: Sun, 25 Mar 2012 19:12:37 +0200 Subject: isdn/gigaset: use gig_dbg() for debugging output The "TTY buffer in tty_port" patchset introduced an opencoded debug message in the Gigaset tty device if_close() function. Change it to use the gig_dbg() macro like everywhere else in the driver. Signed-off-by: Tilman Schmidt Cc: Jiri Slaby Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c index b3d6ac1..a6d9fd2 100644 --- a/drivers/isdn/gigaset/interface.c +++ b/drivers/isdn/gigaset/interface.c @@ -176,7 +176,7 @@ static void if_close(struct tty_struct *tty, struct file *filp) struct cardstate *cs = tty->driver_data; if (!cs) { /* happens if we didn't find cs in open */ - printk(KERN_DEBUG "%s: no cardstate\n", __func__); + gig_dbg(DEBUG_IF, "%s: no cardstate", __func__); return; } -- cgit v0.10.2 From acede70d6561f2d042d9dbb153d9a3469479c0ed Mon Sep 17 00:00:00 2001 From: Yuriy Kozlov Date: Thu, 29 Mar 2012 09:55:27 +0200 Subject: tty: serial: altera_uart: Check for NULL platform_data in probe. Follow altera_jtag_uart. This fixes a crash if there is a mistake in the DTS. Signed-off-by: Yuriy Kozlov Signed-off-by: Tobias Klauser Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/tty/serial/altera_uart.c b/drivers/tty/serial/altera_uart.c index e790375..1f03309 100644 --- a/drivers/tty/serial/altera_uart.c +++ b/drivers/tty/serial/altera_uart.c @@ -556,7 +556,7 @@ static int __devinit altera_uart_probe(struct platform_device *pdev) res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (res_mem) port->mapbase = res_mem->start; - else if (platp->mapbase) + else if (platp) port->mapbase = platp->mapbase; else return -EINVAL; @@ -564,7 +564,7 @@ static int __devinit altera_uart_probe(struct platform_device *pdev) res_irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); if (res_irq) port->irq = res_irq->start; - else if (platp->irq) + else if (platp) port->irq = platp->irq; /* Check platform data first so we can override device node data */ -- cgit v0.10.2 From 57c3686842114de3b0c00633591e9605c46fb769 Mon Sep 17 00:00:00 2001 From: "Siftar, Gabe" Date: Thu, 29 Mar 2012 15:40:05 +0200 Subject: tty/serial: atmel_serial: fix RS485 half-duplex problem On our custom board, we are using RS485 in half-duplex mode on an AT91SAM9G45. SER_RS485_RX_DURING_TX is not set as we do not want to receive the data we transmit (our transceiver will receive transmitted data). Although the current driver attempts to disable and enable the receiver at the appropriate points, incoming data is still loaded into the receive register causing our code to receive the very last byte that was sent once the receiver is enabled. I ran this by Atmel support and they wrote: "The issue comes from the fact that you disable the PDC/DMA Reception and not the USART Reception channel. In your case, the[n] you will still receive data into the USART_RHR register, and maybe you [h]ave the overrun flag set. So please disable the USART reception channel." The following patch should force the driver to enable/disable the receiver via RXEN/RXDIS fields of the USART control register. It fixed the issue I was having. Signed-off-by: Gabe Siftar [nicolas.ferre@atmel.com: slightly modify commit message] Signed-off-by: Nicolas Ferre Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index f9a6be7..3d7e1ee 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -389,6 +389,8 @@ static void atmel_start_rx(struct uart_port *port) { UART_PUT_CR(port, ATMEL_US_RSTSTA); /* reset status and receiver */ + UART_PUT_CR(port, ATMEL_US_RXEN); + if (atmel_use_dma_rx(port)) { /* enable PDC controller */ UART_PUT_IER(port, ATMEL_US_ENDRX | ATMEL_US_TIMEOUT | @@ -404,6 +406,8 @@ static void atmel_start_rx(struct uart_port *port) */ static void atmel_stop_rx(struct uart_port *port) { + UART_PUT_CR(port, ATMEL_US_RXDIS); + if (atmel_use_dma_rx(port)) { /* disable PDC receive */ UART_PUT_PTCR(port, ATMEL_PDC_RXTDIS); -- cgit v0.10.2 From 5da527aafed2834852fc4fe21daeaeadf7c61af3 Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Tue, 3 Apr 2012 03:18:23 +0200 Subject: printk(): add KERN_CONT where needed in hpet and vt code A prototype for kmsg records instead of a byte-stream buffer revealed a couple of missing printk(KERN_CONT ...) uses. Subsequent calls produce one record per printk() call, while all should have ended up in a single record. Instead of: ACPI: (supports S0 S5) ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) hpet0: at MMIO 0xfed00000, IRQs 2 , 8 , 0 It prints: ACPI: (supports S0 S5 ) ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11 ) hpet0: at MMIO 0xfed00000, IRQs 2 , 8 , 0 Cc: Andrew Morton Cc: Len Brown Signed-off-by: Kay Sievers Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c index 3845ab4..dfd7876 100644 --- a/drivers/char/hpet.c +++ b/drivers/char/hpet.c @@ -906,8 +906,8 @@ int hpet_alloc(struct hpet_data *hdp) hpetp->hp_which, hdp->hd_phys_address, hpetp->hp_ntimer > 1 ? "s" : ""); for (i = 0; i < hpetp->hp_ntimer; i++) - printk("%s %d", i > 0 ? "," : "", hdp->hd_irq[i]); - printk("\n"); + printk(KERN_CONT "%s %d", i > 0 ? "," : "", hdp->hd_irq[i]); + printk(KERN_CONT "\n"); temp = hpetp->hp_tick_freq; remainder = do_div(temp, 1000000); diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c index 3bdd4b1..2156188 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -2932,11 +2932,10 @@ static int __init con_init(void) gotoxy(vc, vc->vc_x, vc->vc_y); csi_J(vc, 0); update_screen(vc); - pr_info("Console: %s %s %dx%d", + pr_info("Console: %s %s %dx%d\n", vc->vc_can_do_color ? "colour" : "mono", display_desc, vc->vc_cols, vc->vc_rows); printable = 1; - printk("\n"); console_unlock(); -- cgit v0.10.2 From 7b246a1d0dfe75346a22bf6589b858a0389e6df1 Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Tue, 3 Apr 2012 18:14:24 -0700 Subject: serial: samsung: fix omission initialize ulcon in reset port fn() Fix omission initialize ulcon in s3c24xx_serial_resetport(), reset port function in drivers/tty/serial/samsung.c. It has been happened from commit 0dfb3b41("serial: samsung: merge all SoC specific port reset functions") Signed-off-by: Kukjin Kim Cc: stable [3.3] Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c index de249d2..d8b0aee 100644 --- a/drivers/tty/serial/samsung.c +++ b/drivers/tty/serial/samsung.c @@ -982,6 +982,7 @@ static void s3c24xx_serial_resetport(struct uart_port *port, ucon &= ucon_mask; wr_regl(port, S3C2410_UCON, ucon | cfg->ucon); + wr_regl(port, S3C2410_ULCON, cfg->ulcon); /* reset both fifos */ wr_regl(port, S3C2410_UFCON, cfg->ufcon | S3C2410_UFCON_RESETBOTH); -- cgit v0.10.2 From d8c4019b41aaf4d6401a4ceb3819b8e1afe21595 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 2 Apr 2012 16:32:17 -0600 Subject: tty/serial/omap: console can only be built-in When the omap serial driver is built as a module, we must not allow the console driver to be selected, because consoles can not be loadable modules. Signed-off-by: Arnd Bergmann Signed-off-by: Mathieu Poirier Acked-by: Govindraj.R Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index 665beb6..070b442 100644 --- a/drivers/tty/serial/Kconfig +++ b/drivers/tty/serial/Kconfig @@ -1041,7 +1041,7 @@ config SERIAL_OMAP config SERIAL_OMAP_CONSOLE bool "Console on OMAP serial port" - depends on SERIAL_OMAP + depends on SERIAL_OMAP=y select SERIAL_CORE_CONSOLE help Select this option if you would like to use omap serial port as -- cgit v0.10.2 From 3579812373aba92b2f3b632bdf99329bc3c05d62 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 6 Apr 2012 11:49:37 -0700 Subject: Revert "serial/8250_pci: init-quirk msi support for kt serial controller" This reverts commit e86ff4a63c9fdd875ba8492577cd1ad2252f525c. This tried to enforce the semantics of one interrupt per iir read of the THRE (transmit-hold empty) status, but events from other sources (particularly modem status) defeat this guarantee. This change also broke 8250_pci suspend/resume support as pciserial_resume_ports() re-runs .init() quirks, but does not run .exit() quirks in pciserial_suspend_ports() leading to reports like: sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:16.3/msi_irqs' ...and a subsequent crash. The mismatch of init/exit at suspend/resume seems like a bug in its own right. [stable: 3.3.x] Cc: stable Acked-by: Alan Cox Cc: Sudhakar Mamillapalli Reported-by: Nhan H Mai Signed-off-by: Dan Williams Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c index da2b0b0..1d4ccf8 100644 --- a/drivers/tty/serial/8250/8250_pci.c +++ b/drivers/tty/serial/8250/8250_pci.c @@ -1118,18 +1118,6 @@ pci_xr17c154_setup(struct serial_private *priv, return pci_default_setup(priv, board, port, idx); } -static int try_enable_msi(struct pci_dev *dev) -{ - /* use msi if available, but fallback to legacy otherwise */ - pci_enable_msi(dev); - return 0; -} - -static void disable_msi(struct pci_dev *dev) -{ - pci_disable_msi(dev); -} - #define PCI_VENDOR_ID_SBSMODULARIO 0x124B #define PCI_SUBVENDOR_ID_SBSMODULARIO 0x124B #define PCI_DEVICE_ID_OCTPRO 0x0001 @@ -1249,9 +1237,7 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = { .device = PCI_DEVICE_ID_INTEL_PATSBURG_KT, .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, - .init = try_enable_msi, .setup = kt_serial_setup, - .exit = disable_msi, }, /* * ITE -- cgit v0.10.2 From 49b532f96fda23663f8be35593d1c1372c0f91e0 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 6 Apr 2012 11:49:44 -0700 Subject: Revert "serial/8250_pci: setup-quirk workaround for the kt serial controller" This reverts commit 448ac154c957c4580531fa0c8f2045816fe2f0e7. The semantic of UPF_IIR_ONCE is only guaranteed to workaround the race condition in the kt serial's iir register if the only source of interrupts is THRE (fifo-empty) events. An modem status event at the wrong time can again cause an iir read to drop the 'empty' status leading to a hang. So, revert this in preparation for using the existing "I don't trust my iir register" workaround in the 8250 core (UART_BUG_THRE). [stable: 3.3.x] Cc: stable Acked-by: Alan Cox Cc: Sudhakar Mamillapalli Reported-by: Nhan H Mai Signed-off-by: Dan Williams Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/tty/serial/8250/8250.c b/drivers/tty/serial/8250/8250.c index 5b149b4..56492d2 100644 --- a/drivers/tty/serial/8250/8250.c +++ b/drivers/tty/serial/8250/8250.c @@ -1572,13 +1572,11 @@ static irqreturn_t serial8250_interrupt(int irq, void *dev_id) do { struct uart_8250_port *up; struct uart_port *port; - bool skip; up = list_entry(l, struct uart_8250_port, list); port = &up->port; - skip = pass_counter && up->port.flags & UPF_IIR_ONCE; - if (!skip && port->handle_irq(port)) { + if (port->handle_irq(port)) { handled = 1; end = NULL; } else if (end == NULL) diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c index 1d4ccf8..105dcfb 100644 --- a/drivers/tty/serial/8250/8250_pci.c +++ b/drivers/tty/serial/8250/8250_pci.c @@ -1092,14 +1092,6 @@ static int skip_tx_en_setup(struct serial_private *priv, return pci_default_setup(priv, board, port, idx); } -static int kt_serial_setup(struct serial_private *priv, - const struct pciserial_board *board, - struct uart_port *port, int idx) -{ - port->flags |= UPF_IIR_ONCE; - return skip_tx_en_setup(priv, board, port, idx); -} - static int pci_eg20t_init(struct pci_dev *dev) { #if defined(CONFIG_SERIAL_PCH_UART) || defined(CONFIG_SERIAL_PCH_UART_MODULE) @@ -1118,6 +1110,7 @@ pci_xr17c154_setup(struct serial_private *priv, return pci_default_setup(priv, board, port, idx); } +/* This should be in linux/pci_ids.h */ #define PCI_VENDOR_ID_SBSMODULARIO 0x124B #define PCI_SUBVENDOR_ID_SBSMODULARIO 0x124B #define PCI_DEVICE_ID_OCTPRO 0x0001 @@ -1147,7 +1140,6 @@ pci_xr17c154_setup(struct serial_private *priv, #define PCI_DEVICE_ID_OXSEMI_16PCI958 0x9538 #define PCIE_DEVICE_ID_NEO_2_OX_IBM 0x00F6 #define PCI_DEVICE_ID_PLX_CRONYX_OMEGA 0xc001 -#define PCI_DEVICE_ID_INTEL_PATSBURG_KT 0x1d3d /* Unknown vendors/cards - this should not be in linux/pci_ids.h */ #define PCI_SUBDEVICE_ID_UNKNOWN_0x1584 0x1584 @@ -1232,13 +1224,6 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = { .subdevice = PCI_ANY_ID, .setup = ce4100_serial_setup, }, - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_PATSBURG_KT, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .setup = kt_serial_setup, - }, /* * ITE */ diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index f51bf2e..882f1d6 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -357,7 +357,6 @@ struct uart_port { #define UPF_CONS_FLOW ((__force upf_t) (1 << 23)) #define UPF_SHARE_IRQ ((__force upf_t) (1 << 24)) #define UPF_EXAR_EFR ((__force upf_t) (1 << 25)) -#define UPF_IIR_ONCE ((__force upf_t) (1 << 26)) /* The exact UART type is known and should not be probed. */ #define UPF_FIXED_TYPE ((__force upf_t) (1 << 27)) #define UPF_BOOT_AUTOCONF ((__force upf_t) (1 << 28)) -- cgit v0.10.2 From bc02d15a3452fdf9276e8fb89c5e504a88df888a Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 6 Apr 2012 11:49:50 -0700 Subject: serial/8250_pci: add a "force background timer" flag and use it for the "kt" serial port Workaround dropped notifications in the iir register. Register reads coincident with new interrupt notifications sometimes result in this device clearing the interrupt event without reporting it in the read data. The serial core already has a heuristic for determining when a device has an untrustworthy iir register. In this case when we apriori know that the iir is faulty use a flag (UPF_BUG_THRE) to bypass the test and force usage of the background timer. [stable: 3.3.x] Acked-by: Alan Cox Cc: stable Reported-by: Nhan H Mai Reported-by: Sudhakar Mamillapalli Tested-by: Nhan H Mai Tested-by: Sudhakar Mamillapalli Signed-off-by: Dan Williams Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/tty/serial/8250/8250.c b/drivers/tty/serial/8250/8250.c index 56492d2..5c27f7e 100644 --- a/drivers/tty/serial/8250/8250.c +++ b/drivers/tty/serial/8250/8250.c @@ -2035,10 +2035,12 @@ static int serial8250_startup(struct uart_port *port) spin_unlock_irqrestore(&port->lock, flags); /* - * If the interrupt is not reasserted, setup a timer to - * kick the UART on a regular basis. + * If the interrupt is not reasserted, or we otherwise + * don't trust the iir, setup a timer to kick the UART + * on a regular basis. */ - if (!(iir1 & UART_IIR_NO_INT) && (iir & UART_IIR_NO_INT)) { + if ((!(iir1 & UART_IIR_NO_INT) && (iir & UART_IIR_NO_INT)) || + up->port.flags & UPF_BUG_THRE) { up->bugs |= UART_BUG_THRE; pr_debug("ttyS%d - using backup timer\n", serial_index(port)); diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c index 105dcfb..858dca8 100644 --- a/drivers/tty/serial/8250/8250_pci.c +++ b/drivers/tty/serial/8250/8250_pci.c @@ -1092,6 +1092,14 @@ static int skip_tx_en_setup(struct serial_private *priv, return pci_default_setup(priv, board, port, idx); } +static int kt_serial_setup(struct serial_private *priv, + const struct pciserial_board *board, + struct uart_port *port, int idx) +{ + port->flags |= UPF_BUG_THRE; + return skip_tx_en_setup(priv, board, port, idx); +} + static int pci_eg20t_init(struct pci_dev *dev) { #if defined(CONFIG_SERIAL_PCH_UART) || defined(CONFIG_SERIAL_PCH_UART_MODULE) @@ -1110,7 +1118,6 @@ pci_xr17c154_setup(struct serial_private *priv, return pci_default_setup(priv, board, port, idx); } -/* This should be in linux/pci_ids.h */ #define PCI_VENDOR_ID_SBSMODULARIO 0x124B #define PCI_SUBVENDOR_ID_SBSMODULARIO 0x124B #define PCI_DEVICE_ID_OCTPRO 0x0001 @@ -1140,6 +1147,7 @@ pci_xr17c154_setup(struct serial_private *priv, #define PCI_DEVICE_ID_OXSEMI_16PCI958 0x9538 #define PCIE_DEVICE_ID_NEO_2_OX_IBM 0x00F6 #define PCI_DEVICE_ID_PLX_CRONYX_OMEGA 0xc001 +#define PCI_DEVICE_ID_INTEL_PATSBURG_KT 0x1d3d /* Unknown vendors/cards - this should not be in linux/pci_ids.h */ #define PCI_SUBDEVICE_ID_UNKNOWN_0x1584 0x1584 @@ -1224,6 +1232,13 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = { .subdevice = PCI_ANY_ID, .setup = ce4100_serial_setup, }, + { + .vendor = PCI_VENDOR_ID_INTEL, + .device = PCI_DEVICE_ID_INTEL_PATSBURG_KT, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .setup = kt_serial_setup, + }, /* * ITE */ diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index 882f1d6..2db407a 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -357,6 +357,7 @@ struct uart_port { #define UPF_CONS_FLOW ((__force upf_t) (1 << 23)) #define UPF_SHARE_IRQ ((__force upf_t) (1 << 24)) #define UPF_EXAR_EFR ((__force upf_t) (1 << 25)) +#define UPF_BUG_THRE ((__force upf_t) (1 << 26)) /* The exact UART type is known and should not be probed. */ #define UPF_FIXED_TYPE ((__force upf_t) (1 << 27)) #define UPF_BOOT_AUTOCONF ((__force upf_t) (1 << 28)) -- cgit v0.10.2 From 867c902e07d5677e2a5b54c0435e589513abde48 Mon Sep 17 00:00:00 2001 From: Tomoya MORINAGA Date: Mon, 2 Apr 2012 14:36:22 +0900 Subject: pch_uart: Fix MSI setting issue The following patch (MSI setting) is not enough. commit e463595fd9c752fa4bf06b47df93ef9ade3c7cf0 Author: Alexander Stein Date: Mon Jul 4 08:58:31 2011 +0200 pch_uart: Add MSI support Signed-off-by: Alexander Stein Signed-off-by: Greg Kroah-Hartman To enable MSI mode, PCI bus-mastering must be enabled. This patch enables the setting. cc: Alexander Stein Signed-off-by: Tomoya MORINAGA Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c index e825460..afa060f 100644 --- a/drivers/tty/serial/pch_uart.c +++ b/drivers/tty/serial/pch_uart.c @@ -1655,6 +1655,7 @@ static struct eg20t_port *pch_uart_init_port(struct pci_dev *pdev, } pci_enable_msi(pdev); + pci_set_master(pdev); iobase = pci_resource_start(pdev, 0); mapbase = pci_resource_start(pdev, 1); -- cgit v0.10.2 From 9a637e19213496b756662155ef26394e189b320a Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Sun, 8 Apr 2012 23:23:30 +0300 Subject: ARM: OMAP1: mux: add missing include Fix the following build breakage in v3.4-rc2 that happens with CONFIG_OMAP_MUX=y: arch/arm/mach-omap1/mux.c:89:1: error: 'FUNC_MUX_CTRL_9' undeclared here (not in a function) arch/arm/mach-omap1/mux.c:89:1: error: 'PULL_DWN_CTRL_2' undeclared here (not in a function) arch/arm/mach-omap1/mux.c:93:1: error: 'FUNC_MUX_CTRL_C' undeclared here (not in a function) Signed-off-by: Aaro Koskinen Acked-by: Jarkko Nikula [tony@atomide.com: updated comments] Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap1/mux.c b/arch/arm/mach-omap1/mux.c index 087dba0..e9cc52d 100644 --- a/arch/arm/mach-omap1/mux.c +++ b/arch/arm/mach-omap1/mux.c @@ -27,6 +27,7 @@ #include #include +#include #include -- cgit v0.10.2 From 11bbd5b6dae49fd7072ebf5eb63735827bd72f42 Mon Sep 17 00:00:00 2001 From: Michael Brunner Date: Fri, 23 Mar 2012 11:06:37 +0100 Subject: pch_uart: Add Kontron COMe-mTT10 uart clock quirk Add UART clock quirk for the Kontron COMe-mTT10 module. The board has previously been called nanoETXexpress-TT, therefore this is also checked. As suggested by Darren Hart the comparison in this patch version is placed after the FRI2 checks to ensure it will also work with possible upcoming changes to the FRI2 firmware. This patch follows the patchset submitted by Darren Hart at commit a46f5533ecfc7bbdd646d84fdab8656031a715c6. Signed-off-by: Michael Brunner Acked-by: Darren Hart Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c index afa060f..8a18eb0 100644 --- a/drivers/tty/serial/pch_uart.c +++ b/drivers/tty/serial/pch_uart.c @@ -210,6 +210,7 @@ enum { #define CMITC_UARTCLK 192000000 /* 192.0000 MHz */ #define FRI2_64_UARTCLK 64000000 /* 64.0000 MHz */ #define FRI2_48_UARTCLK 48000000 /* 48.0000 MHz */ +#define NTC1_UARTCLK 64000000 /* 64.0000 MHz */ struct pch_uart_buffer { unsigned char *buf; @@ -388,6 +389,12 @@ static int pch_uart_get_uartclk(void) if (cmp && strstr(cmp, "Fish River Island II")) return FRI2_48_UARTCLK; + /* Kontron COMe-mTT10 (nanoETXexpress-TT) */ + cmp = dmi_get_system_info(DMI_BOARD_NAME); + if (cmp && (strstr(cmp, "COMe-mTT") || + strstr(cmp, "nanoETXexpress-TT"))) + return NTC1_UARTCLK; + return DEFAULT_UARTCLK; } -- cgit v0.10.2 From 3cb42092ff02edec34bf936b7400b1f1efc8ca43 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 9 Apr 2012 13:59:00 -0400 Subject: um: fix linker script generation while we can't just use -U$(SUBARCH), we still need to kill idiotic define (implicit -Di386=1), both for SUBARCH=i386 and SUBARCH=x86/CONFIG_64BIT=n builds. Signed-off-by: Al Viro diff --git a/arch/um/kernel/Makefile b/arch/um/kernel/Makefile index 492bc4c..65a1c3d 100644 --- a/arch/um/kernel/Makefile +++ b/arch/um/kernel/Makefile @@ -3,9 +3,10 @@ # Licensed under the GPL # -CPPFLAGS_vmlinux.lds := -DSTART=$(LDS_START) \ - -DELF_ARCH=$(LDS_ELF_ARCH) \ - -DELF_FORMAT=$(LDS_ELF_FORMAT) +CPPFLAGS_vmlinux.lds := -DSTART=$(LDS_START) \ + -DELF_ARCH=$(LDS_ELF_ARCH) \ + -DELF_FORMAT=$(LDS_ELF_FORMAT) \ + $(LDS_EXTRA) extra-y := vmlinux.lds clean-files := diff --git a/arch/x86/Makefile.um b/arch/x86/Makefile.um index 4be406a..36b62bc 100644 --- a/arch/x86/Makefile.um +++ b/arch/x86/Makefile.um @@ -14,6 +14,9 @@ LINK-y += $(call cc-option,-m32) export LDFLAGS +LDS_EXTRA := -Ui386 +export LDS_EXTRA + # First of all, tune CFLAGS for the specific CPU. This actually sets cflags-y. include $(srctree)/arch/x86/Makefile_32.cpu -- cgit v0.10.2 From f21a7c195cb20cf613147839c4a2bc1fca8c7bd8 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 8 Apr 2012 20:31:22 -0400 Subject: um: several x86 hw-dependent crypto modules won't build on uml Signed-off-by: Al Viro diff --git a/crypto/Kconfig b/crypto/Kconfig index 21ff9d0..8e84225 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -627,7 +627,7 @@ config CRYPTO_BLOWFISH_COMMON config CRYPTO_BLOWFISH_X86_64 tristate "Blowfish cipher algorithm (x86_64)" - depends on (X86 || UML_X86) && 64BIT + depends on X86 && 64BIT select CRYPTO_ALGAPI select CRYPTO_BLOWFISH_COMMON help @@ -657,7 +657,7 @@ config CRYPTO_CAMELLIA config CRYPTO_CAMELLIA_X86_64 tristate "Camellia cipher algorithm (x86_64)" - depends on (X86 || UML_X86) && 64BIT + depends on X86 && 64BIT depends on CRYPTO select CRYPTO_ALGAPI select CRYPTO_LRW @@ -893,7 +893,7 @@ config CRYPTO_TWOFISH_X86_64 config CRYPTO_TWOFISH_X86_64_3WAY tristate "Twofish cipher algorithm (x86_64, 3-way parallel)" - depends on (X86 || UML_X86) && 64BIT + depends on X86 && 64BIT select CRYPTO_ALGAPI select CRYPTO_TWOFISH_COMMON select CRYPTO_TWOFISH_X86_64 -- cgit v0.10.2 From d1640130cda146ed925f12434bfe579ee7d80a1c Mon Sep 17 00:00:00 2001 From: "Srivatsa S. Bhat" Date: Thu, 22 Mar 2012 16:59:11 +0530 Subject: tile/CPU hotplug: Add missing call to notify_cpu_starting() The scheduler depends on receiving the CPU_STARTING notification, without which we end up into a lot of trouble. So add the missing call to notify_cpu_starting() in the bringup code. Signed-off-by: Srivatsa S. Bhat Signed-off-by: Chris Metcalf diff --git a/arch/tile/kernel/smpboot.c b/arch/tile/kernel/smpboot.c index b949edc..172aef7 100644 --- a/arch/tile/kernel/smpboot.c +++ b/arch/tile/kernel/smpboot.c @@ -196,6 +196,8 @@ void __cpuinit online_secondary(void) /* This must be done before setting cpu_online_mask */ wmb(); + notify_cpu_starting(smp_processor_id()); + /* * We need to hold call_lock, so there is no inconsistency * between the time smp_call_function() determines number of -- cgit v0.10.2 From 8528e07edfc6ac5a793509f305b9c3c4fb3672c0 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Wed, 28 Mar 2012 08:35:26 -0700 Subject: hwmon: (smsc47b397) Fix compiler warning Some configurations produce the following compiler warning: drivers/hwmon/smsc47b397.c: In function 'smsc47b397_init': drivers/hwmon/smsc47b397.c:385: warning: 'address' may be used uninitialized in this function While this is a false positive, it can easily be fixed by overloading the return value from smsc47b397_find with both address and error return code (the address is an unsigned short and thus never negative). This also reduces module size by a few bytes (64 bytes for x86_64). Cc: Mark M. Hoffman Signed-off-by: Guenter Roeck Reviewed-by: Robert Coulson Acked-by: Jean Delvare diff --git a/drivers/hwmon/smsc47b397.c b/drivers/hwmon/smsc47b397.c index d3b778d..c5f6be4 100644 --- a/drivers/hwmon/smsc47b397.c +++ b/drivers/hwmon/smsc47b397.c @@ -343,10 +343,11 @@ exit: return err; } -static int __init smsc47b397_find(unsigned short *addr) +static int __init smsc47b397_find(void) { u8 id, rev; char *name; + unsigned short addr; superio_enter(); id = force_id ? force_id : superio_inb(SUPERIO_REG_DEVID); @@ -370,14 +371,14 @@ static int __init smsc47b397_find(unsigned short *addr) rev = superio_inb(SUPERIO_REG_DEVREV); superio_select(SUPERIO_REG_LD8); - *addr = (superio_inb(SUPERIO_REG_BASE_MSB) << 8) + addr = (superio_inb(SUPERIO_REG_BASE_MSB) << 8) | superio_inb(SUPERIO_REG_BASE_LSB); pr_info("found SMSC %s (base address 0x%04x, revision %u)\n", - name, *addr, rev); + name, addr, rev); superio_exit(); - return 0; + return addr; } static int __init smsc47b397_init(void) @@ -385,9 +386,10 @@ static int __init smsc47b397_init(void) unsigned short address; int ret; - ret = smsc47b397_find(&address); - if (ret) + ret = smsc47b397_find(); + if (ret < 0) return ret; + address = ret; ret = platform_driver_register(&smsc47b397_driver); if (ret) -- cgit v0.10.2 From 776cdc11b3b0fc21e34600e22abe1c8209d2f3f0 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Wed, 28 Mar 2012 09:03:26 -0700 Subject: hwmon: (acpi_power_meter) Fix compiler warning seen in some configurations In some configurations, BUG() does not result in an endless loop but returns to the caller. This results in the following compiler warning: drivers/hwmon/acpi_power_meter.c: In function 'show_str': drivers/hwmon/acpi_power_meter.c:380: warning: 'val' may be used uninitialized in this function Fix the warning by setting val to an empty string after BUG(). Signed-off-by: Guenter Roeck Reviewed-by: Robert Coulson diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c index 145f135..9140236 100644 --- a/drivers/hwmon/acpi_power_meter.c +++ b/drivers/hwmon/acpi_power_meter.c @@ -391,6 +391,7 @@ static ssize_t show_str(struct device *dev, break; default: BUG(); + val = ""; } return sprintf(buf, "%s\n", val); -- cgit v0.10.2 From 1d0045ee4a220872b65147b5b290e4a4852386d9 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Wed, 28 Mar 2012 08:55:12 -0700 Subject: hwmon: (smsc47m1) Fix compiler warning Some configurations produce the following compiler warning: drivers/hwmon/smsc47m1.c: In function 'sm_smsc47m1_init': drivers/hwmon/smsc47m1.c:938: warning: 'address' may be used uninitialized in this function While this is a false positive, it can easily be fixed by overloading the return value from smsc47m1_find with both address and error return code (the address is an unsigned short and thus never negative). This also reduces module size by a few bytes (46 bytes for x86_64). Signed-off-by: Guenter Roeck Reviewed-by: Robert Coulson diff --git a/drivers/hwmon/smsc47m1.c b/drivers/hwmon/smsc47m1.c index c590c14..b5aa38d 100644 --- a/drivers/hwmon/smsc47m1.c +++ b/drivers/hwmon/smsc47m1.c @@ -491,10 +491,10 @@ static const struct attribute_group smsc47m1_group = { .attrs = smsc47m1_attributes, }; -static int __init smsc47m1_find(unsigned short *addr, - struct smsc47m1_sio_data *sio_data) +static int __init smsc47m1_find(struct smsc47m1_sio_data *sio_data) { u8 val; + unsigned short addr; superio_enter(); val = force_id ? force_id : superio_inb(SUPERIO_REG_DEVID); @@ -546,9 +546,9 @@ static int __init smsc47m1_find(unsigned short *addr, } superio_select(); - *addr = (superio_inb(SUPERIO_REG_BASE) << 8) + addr = (superio_inb(SUPERIO_REG_BASE) << 8) | superio_inb(SUPERIO_REG_BASE + 1); - if (*addr == 0) { + if (addr == 0) { pr_info("Device address not set, will not use\n"); superio_exit(); return -ENODEV; @@ -565,7 +565,7 @@ static int __init smsc47m1_find(unsigned short *addr, } superio_exit(); - return 0; + return addr; } /* Restore device to its initial state */ @@ -938,13 +938,15 @@ static int __init sm_smsc47m1_init(void) unsigned short address; struct smsc47m1_sio_data sio_data; - if (smsc47m1_find(&address, &sio_data)) - return -ENODEV; + err = smsc47m1_find(&sio_data); + if (err < 0) + return err; + address = err; /* Sets global pdev as a side effect */ err = smsc47m1_device_add(address, &sio_data); if (err) - goto exit; + return err; err = platform_driver_probe(&smsc47m1_driver, smsc47m1_probe); if (err) @@ -955,7 +957,6 @@ static int __init sm_smsc47m1_init(void) exit_device: platform_device_unregister(pdev); smsc47m1_restore(&sio_data); -exit: return err; } -- cgit v0.10.2 From d7ee11157f1fce02632e2f3a56b99b2afd9e5f93 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Wed, 28 Mar 2012 09:14:03 -0700 Subject: hwmon: (pmbus_core) Fix compiler warning Some configurations produce the following compiler warning: drivers/hwmon/pmbus/pmbus_core.c: In function 'pmbus_show_boolean': drivers/hwmon/pmbus/pmbus_core.c:752: warning: 'val' may be used uninitialized in this function While this is a false positive, it can easily be fixed by overloading the return value from pmbus_get_boolean with both val and error return code (val is a boolean and thus never negative). Signed-off-by: Guenter Roeck Reviewed-by: Robert Coulson diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c index be51037..29b319d 100644 --- a/drivers/hwmon/pmbus/pmbus_core.c +++ b/drivers/hwmon/pmbus/pmbus_core.c @@ -710,13 +710,13 @@ static u16 pmbus_data2reg(struct pmbus_data *data, * If a negative value is stored in any of the referenced registers, this value * reflects an error code which will be returned. */ -static int pmbus_get_boolean(struct pmbus_data *data, int index, int *val) +static int pmbus_get_boolean(struct pmbus_data *data, int index) { u8 s1 = (index >> 24) & 0xff; u8 s2 = (index >> 16) & 0xff; u8 reg = (index >> 8) & 0xff; u8 mask = index & 0xff; - int status; + int ret, status; u8 regval; status = data->status[reg]; @@ -725,7 +725,7 @@ static int pmbus_get_boolean(struct pmbus_data *data, int index, int *val) regval = status & mask; if (!s1 && !s2) - *val = !!regval; + ret = !!regval; else { long v1, v2; struct pmbus_sensor *sensor1, *sensor2; @@ -739,9 +739,9 @@ static int pmbus_get_boolean(struct pmbus_data *data, int index, int *val) v1 = pmbus_reg2data(data, sensor1); v2 = pmbus_reg2data(data, sensor2); - *val = !!(regval && v1 >= v2); + ret = !!(regval && v1 >= v2); } - return 0; + return ret; } static ssize_t pmbus_show_boolean(struct device *dev, @@ -750,11 +750,10 @@ static ssize_t pmbus_show_boolean(struct device *dev, struct sensor_device_attribute *attr = to_sensor_dev_attr(da); struct pmbus_data *data = pmbus_update_device(dev); int val; - int err; - err = pmbus_get_boolean(data, attr->index, &val); - if (err) - return err; + val = pmbus_get_boolean(data, attr->index); + if (val < 0) + return val; return snprintf(buf, PAGE_SIZE, "%d\n", val); } -- cgit v0.10.2 From b2a71642b8bfa1965700ba248a99016e4d6b685d Mon Sep 17 00:00:00 2001 From: acreese Date: Wed, 4 Apr 2012 16:22:32 -0700 Subject: drm/i915: Removed IVB forced enable of sprite dest key. The destination color key is always enabled for IVB. Removed the line that does this. Signed-off-by: Armin Reese Acked-by: Jesse Barnes Cc: stable@kernel.org Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c index a464771..e90dfb6 100644 --- a/drivers/gpu/drm/i915/intel_sprite.c +++ b/drivers/gpu/drm/i915/intel_sprite.c @@ -95,7 +95,6 @@ ivb_update_plane(struct drm_plane *plane, struct drm_framebuffer *fb, /* must disable */ sprctl |= SPRITE_TRICKLE_FEED_DISABLE; sprctl |= SPRITE_ENABLE; - sprctl |= SPRITE_DEST_KEY; /* Sizes are 0 based */ src_w--; -- cgit v0.10.2 From 14667a4bde4361b7ac420d68a2e9e9b9b2df5231 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Tue, 3 Apr 2012 17:58:35 +0100 Subject: drm/i915: Finish any pending operations on the framebuffer before disabling Similar to the case where we are changing from one framebuffer to another, we need to be sure that there are no pending WAIT_FOR_EVENTs on the pipe for the current framebuffer before switching. If we disable the pipe, and then try to execute a WAIT_FOR_EVENT it will block indefinitely and cause a GPU hang. We attempted to fix this in commit 85345517fe6d4de27b0d6ca19fef9d28ac947c4a (drm/i915: Retire any pending operations on the old scanout when switching) for the case of mode switching, but this leaves the condition where we are switching off the pipe vulnerable. There still remains the race condition were a display may be unplugged, switched off by the core, a uevent sent to notify the DDX and the DDX may issue a WAIT_FOR_EVENT before it processes the uevent. This window does not exist if the pipe is only switched off in response to the uevent. Time to make sure that is so... Reported-by: Francis Leblanc Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=36515 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=45413 Signed-off-by: Chris Wilson Reviewed-by: Eugeni Dodonov [danvet: fixup spelling in comment, noticed by Eugeni.] Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 91b35fd..f446e66 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2245,6 +2245,33 @@ intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb, } static int +intel_finish_fb(struct drm_framebuffer *old_fb) +{ + struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj; + struct drm_i915_private *dev_priv = obj->base.dev->dev_private; + bool was_interruptible = dev_priv->mm.interruptible; + int ret; + + wait_event(dev_priv->pending_flip_queue, + atomic_read(&dev_priv->mm.wedged) || + atomic_read(&obj->pending_flip) == 0); + + /* Big Hammer, we also need to ensure that any pending + * MI_WAIT_FOR_EVENT inside a user batch buffer on the + * current scanout is retired before unpinning the old + * framebuffer. + * + * This should only fail upon a hung GPU, in which case we + * can safely continue. + */ + dev_priv->mm.interruptible = false; + ret = i915_gem_object_finish_gpu(obj); + dev_priv->mm.interruptible = was_interruptible; + + return ret; +} + +static int intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, struct drm_framebuffer *old_fb) { @@ -2282,25 +2309,8 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, return ret; } - if (old_fb) { - struct drm_i915_private *dev_priv = dev->dev_private; - struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj; - - wait_event(dev_priv->pending_flip_queue, - atomic_read(&dev_priv->mm.wedged) || - atomic_read(&obj->pending_flip) == 0); - - /* Big Hammer, we also need to ensure that any pending - * MI_WAIT_FOR_EVENT inside a user batch buffer on the - * current scanout is retired before unpinning the old - * framebuffer. - * - * This should only fail upon a hung GPU, in which case we - * can safely continue. - */ - ret = i915_gem_object_finish_gpu(obj); - (void) ret; - } + if (old_fb) + intel_finish_fb(old_fb); ret = intel_pipe_set_base_atomic(crtc, crtc->fb, x, y, LEAVE_ATOMIC_MODE_SET); @@ -3371,6 +3381,23 @@ static void intel_crtc_disable(struct drm_crtc *crtc) struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; struct drm_device *dev = crtc->dev; + /* Flush any pending WAITs before we disable the pipe. Note that + * we need to drop the struct_mutex in order to acquire it again + * during the lowlevel dpms routines around a couple of the + * operations. It does not look trivial nor desirable to move + * that locking higher. So instead we leave a window for the + * submission of further commands on the fb before we can actually + * disable it. This race with userspace exists anyway, and we can + * only rely on the pipe being disabled by userspace after it + * receives the hotplug notification and has flushed any pending + * batches. + */ + if (crtc->fb) { + mutex_lock(&dev->struct_mutex); + intel_finish_fb(crtc->fb); + mutex_unlock(&dev->struct_mutex); + } + crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF); assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane); assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe); -- cgit v0.10.2 From 3f9768a5d262d01d317b2a03933db3d5082fcb68 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 28 Mar 2012 21:02:46 +0200 Subject: mac80211: fix association beacon wait timeout The TU_TO_EXP_TIME() macro already includes the "jiffies +" piece of the calculation, so don't add jiffies again. Reported-by: Oliver Hartkopp Signed-off-by: Johannes Berg Tested-by: Oliver Hartkopp Signed-off-by: John W. Linville diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 576fb25..f76da5b 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -3387,8 +3387,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, */ printk(KERN_DEBUG "%s: waiting for beacon from %pM\n", sdata->name, ifmgd->bssid); - assoc_data->timeout = jiffies + - TU_TO_EXP_TIME(req->bss->beacon_interval); + assoc_data->timeout = TU_TO_EXP_TIME(req->bss->beacon_interval); } else { assoc_data->have_beacon = true; assoc_data->sent_assoc = false; -- cgit v0.10.2 From 2b5f8b0b44e17e625cfba1e7b88db44f4dcc0441 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 2 Apr 2012 10:51:55 +0200 Subject: nl80211: ensure interface is up in various APIs The nl80211 handling code should ensure as much as it can that the interface is in a valid state, it can certainly ensure the interface is running. Not doing so can cause calls through mac80211 into the driver that result in warnings and unspecified behaviour in the driver. Cc: stable@vger.kernel.org Reported-by: Ben Greear Signed-off-by: Johannes Berg Signed-off-by: John W. Linville diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index e49da27..f432c57 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -1294,6 +1294,11 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) goto bad_res; } + if (!netif_running(netdev)) { + result = -ENETDOWN; + goto bad_res; + } + nla_for_each_nested(nl_txq_params, info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], rem_txq_params) { @@ -6384,7 +6389,7 @@ static struct genl_ops nl80211_ops[] = { .doit = nl80211_get_key, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, - .internal_flags = NL80211_FLAG_NEED_NETDEV | + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | NL80211_FLAG_NEED_RTNL, }, { @@ -6416,7 +6421,7 @@ static struct genl_ops nl80211_ops[] = { .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, .doit = nl80211_set_beacon, - .internal_flags = NL80211_FLAG_NEED_NETDEV | + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | NL80211_FLAG_NEED_RTNL, }, { @@ -6424,7 +6429,7 @@ static struct genl_ops nl80211_ops[] = { .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, .doit = nl80211_start_ap, - .internal_flags = NL80211_FLAG_NEED_NETDEV | + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | NL80211_FLAG_NEED_RTNL, }, { @@ -6432,7 +6437,7 @@ static struct genl_ops nl80211_ops[] = { .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, .doit = nl80211_stop_ap, - .internal_flags = NL80211_FLAG_NEED_NETDEV | + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | NL80211_FLAG_NEED_RTNL, }, { @@ -6448,7 +6453,7 @@ static struct genl_ops nl80211_ops[] = { .doit = nl80211_set_station, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, - .internal_flags = NL80211_FLAG_NEED_NETDEV | + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | NL80211_FLAG_NEED_RTNL, }, { @@ -6464,7 +6469,7 @@ static struct genl_ops nl80211_ops[] = { .doit = nl80211_del_station, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, - .internal_flags = NL80211_FLAG_NEED_NETDEV | + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | NL80211_FLAG_NEED_RTNL, }, { @@ -6497,7 +6502,7 @@ static struct genl_ops nl80211_ops[] = { .doit = nl80211_del_mpath, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, - .internal_flags = NL80211_FLAG_NEED_NETDEV | + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | NL80211_FLAG_NEED_RTNL, }, { @@ -6505,7 +6510,7 @@ static struct genl_ops nl80211_ops[] = { .doit = nl80211_set_bss, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, - .internal_flags = NL80211_FLAG_NEED_NETDEV | + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | NL80211_FLAG_NEED_RTNL, }, { @@ -6531,7 +6536,7 @@ static struct genl_ops nl80211_ops[] = { .doit = nl80211_get_mesh_config, .policy = nl80211_policy, /* can be retrieved by unprivileged users */ - .internal_flags = NL80211_FLAG_NEED_NETDEV | + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | NL80211_FLAG_NEED_RTNL, }, { @@ -6664,7 +6669,7 @@ static struct genl_ops nl80211_ops[] = { .doit = nl80211_setdel_pmksa, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, - .internal_flags = NL80211_FLAG_NEED_NETDEV | + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | NL80211_FLAG_NEED_RTNL, }, { @@ -6672,7 +6677,7 @@ static struct genl_ops nl80211_ops[] = { .doit = nl80211_setdel_pmksa, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, - .internal_flags = NL80211_FLAG_NEED_NETDEV | + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | NL80211_FLAG_NEED_RTNL, }, { @@ -6680,7 +6685,7 @@ static struct genl_ops nl80211_ops[] = { .doit = nl80211_flush_pmksa, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, - .internal_flags = NL80211_FLAG_NEED_NETDEV | + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | NL80211_FLAG_NEED_RTNL, }, { @@ -6840,7 +6845,7 @@ static struct genl_ops nl80211_ops[] = { .doit = nl80211_probe_client, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, - .internal_flags = NL80211_FLAG_NEED_NETDEV | + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | NL80211_FLAG_NEED_RTNL, }, { -- cgit v0.10.2 From 0298dc9f2273fb2d596ae10d7700f054bfce601d Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Tue, 3 Apr 2012 15:31:41 -0500 Subject: rtlwifi: rtl8192de: Fix firmware initialization Before the switch to asynchronous firmware loading (mainline commit b0302ab), it was necessary to load firmware when initializing the first of the units in a dual-mac system. After the change, it is necessary to load firmware in both units. Signed-off-by: Larry Finger Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/sw.c b/drivers/net/wireless/rtlwifi/rtl8192de/sw.c index 4898c50..480862c 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192de/sw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192de/sw.c @@ -91,7 +91,6 @@ static int rtl92d_init_sw_vars(struct ieee80211_hw *hw) u8 tid; struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); - static int header_print; rtlpriv->dm.dm_initialgain_enable = true; rtlpriv->dm.dm_flag = 0; @@ -171,10 +170,6 @@ static int rtl92d_init_sw_vars(struct ieee80211_hw *hw) for (tid = 0; tid < 8; tid++) skb_queue_head_init(&rtlpriv->mac80211.skb_waitq[tid]); - /* Only load firmware for first MAC */ - if (header_print) - return 0; - /* for firmware buf */ rtlpriv->rtlhal.pfirmware = vzalloc(0x8000); if (!rtlpriv->rtlhal.pfirmware) { @@ -186,7 +181,6 @@ static int rtl92d_init_sw_vars(struct ieee80211_hw *hw) rtlpriv->max_fw_size = 0x8000; pr_info("Driver for Realtek RTL8192DE WLAN interface\n"); pr_info("Loading firmware file %s\n", rtlpriv->cfg->fw_name); - header_print++; /* request fw */ err = request_firmware_nowait(THIS_MODULE, 1, rtlpriv->cfg->fw_name, -- cgit v0.10.2 From aa331df0e5e6ebac086ed80b4fbbfd912fe6b32a Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Fri, 6 Apr 2012 16:35:53 -0500 Subject: mac80211: Convert WARN_ON to WARN_ON_ONCE When the control-rate tables are not set up correctly, it makes little sense to spam the logs, thus change the WARN_ON to WARN_ON_ONCE. Signed-off-by: Larry Finger Signed-off-by: John W. Linville diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 87d203f..9210bdc 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1327,7 +1327,7 @@ static inline struct ieee80211_rate * ieee80211_get_tx_rate(const struct ieee80211_hw *hw, const struct ieee80211_tx_info *c) { - if (WARN_ON(c->control.rates[0].idx < 0)) + if (WARN_ON_ONCE(c->control.rates[0].idx < 0)) return NULL; return &hw->wiphy->bands[c->band]->bitrates[c->control.rates[0].idx]; } -- cgit v0.10.2 From e89f7690a3adbde0af7c294f83c242ba6a367ef0 Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Fri, 6 Apr 2012 16:54:17 -0500 Subject: rtlwifi: Fix oops on rate-control failure When the rate-control indexing is incorrectly set up, mac80211 issues a warning and returns NULL from the call to ieee80211_get_tx_rate(). When this happens, avoid a NULL pointer dereference. Signed-off-by: Larry Finger Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/rtlwifi/base.c b/drivers/net/wireless/rtlwifi/base.c index 5100235..e54488d 100644 --- a/drivers/net/wireless/rtlwifi/base.c +++ b/drivers/net/wireless/rtlwifi/base.c @@ -838,7 +838,10 @@ void rtl_get_tcb_desc(struct ieee80211_hw *hw, __le16 fc = hdr->frame_control; txrate = ieee80211_get_tx_rate(hw, info); - tcb_desc->hw_rate = txrate->hw_value; + if (txrate) + tcb_desc->hw_rate = txrate->hw_value; + else + tcb_desc->hw_rate = 0; if (ieee80211_is_data(fc)) { /* -- cgit v0.10.2 From 7ab2485b69571a3beb0313c591486626c3374c85 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Mon, 9 Apr 2012 11:01:09 +0200 Subject: net/wireless/wext-core.c: add missing kfree Free extra as done in the error-handling code just above. Signed-off-by: Julia Lawall Signed-off-by: John W. Linville diff --git a/net/wireless/wext-core.c b/net/wireless/wext-core.c index 0af7f54..af648e0 100644 --- a/net/wireless/wext-core.c +++ b/net/wireless/wext-core.c @@ -780,8 +780,10 @@ static int ioctl_standard_iw_point(struct iw_point *iwp, unsigned int cmd, if (cmd == SIOCSIWENCODEEXT) { struct iw_encode_ext *ee = (void *) extra; - if (iwp->length < sizeof(*ee) + ee->key_len) - return -EFAULT; + if (iwp->length < sizeof(*ee) + ee->key_len) { + err = -EFAULT; + goto out; + } } } -- cgit v0.10.2 From 33cb4f345687a27e3fece0a7fcf78ac2e7b0a7d6 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 20 Mar 2012 16:32:39 +0800 Subject: drivers/base: Remove unneeded spin_lock_init call for soc_lock soc_lock is already initialized by DEFINE_SPINLOCK. Signed-off-by: Axel Lin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/base/soc.c b/drivers/base/soc.c index 05f1503..f49346b 100644 --- a/drivers/base/soc.c +++ b/drivers/base/soc.c @@ -168,8 +168,6 @@ void soc_device_unregister(struct soc_device *soc_dev) static int __init soc_bus_register(void) { - spin_lock_init(&soc_lock); - return bus_register(&soc_bus_type); } core_initcall(soc_bus_register); -- cgit v0.10.2 From 3a4ffe930a2d2dad07604fe74d21b878decc6461 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Sat, 17 Mar 2012 09:17:49 +0000 Subject: drivers/base: fix compiler warning in SoC export driver - idr should be ida MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This fixes: note: expected ‘struct ida *’ but argument is of type ‘struct idr *’ warning: passing argument 1 of ‘ida_pre_get’ from incompatible pointer type Reported-by: Arnd Bergman Cc: Greg Kroah-Hartman Signed-off-by: Lee Jones Signed-off-by: Axel Lin Acked-by: Arnd Bergmann Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/base/soc.c b/drivers/base/soc.c index f49346b..ba29b2e 100644 --- a/drivers/base/soc.c +++ b/drivers/base/soc.c @@ -15,7 +15,7 @@ #include #include -static DEFINE_IDR(soc_ida); +static DEFINE_IDA(soc_ida); static DEFINE_SPINLOCK(soc_lock); static ssize_t soc_info_get(struct device *dev, -- cgit v0.10.2 From d824d06328904f610b47652dcd488392f2fc62b6 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 5 Apr 2012 23:35:03 -0400 Subject: um: switch cow_user.h to htobe{32,64}/betoh{32,64} ... rather than open-coding the 64bit versions. endian.h has those guys. Signed-off-by: Al Viro Signed-off-by: Richard Weinberger diff --git a/arch/um/drivers/cow.h b/arch/um/drivers/cow.h index dc36b22..6673508 100644 --- a/arch/um/drivers/cow.h +++ b/arch/um/drivers/cow.h @@ -3,41 +3,6 @@ #include -#if defined(__KERNEL__) - -# include - -# if defined(__BIG_ENDIAN) -# define ntohll(x) (x) -# define htonll(x) (x) -# elif defined(__LITTLE_ENDIAN) -# define ntohll(x) be64_to_cpu(x) -# define htonll(x) cpu_to_be64(x) -# else -# error "Could not determine byte order" -# endif - -#else -/* For the definition of ntohl, htonl and __BYTE_ORDER */ -#include -#include -#if defined(__BYTE_ORDER) - -# if __BYTE_ORDER == __BIG_ENDIAN -# define ntohll(x) (x) -# define htonll(x) (x) -# elif __BYTE_ORDER == __LITTLE_ENDIAN -# define ntohll(x) bswap_64(x) -# define htonll(x) bswap_64(x) -# else -# error "Could not determine byte order: __BYTE_ORDER uncorrectly defined" -# endif - -#else /* ! defined(__BYTE_ORDER) */ -# error "Could not determine byte order: __BYTE_ORDER not defined" -#endif -#endif /* ! defined(__KERNEL__) */ - extern int init_cow_file(int fd, char *cow_file, char *backing_file, int sectorsize, int alignment, int *bitmap_offset_out, unsigned long *bitmap_len_out, int *data_offset_out); diff --git a/arch/um/drivers/cow_user.c b/arch/um/drivers/cow_user.c index 9cbb426..0ee9cc6 100644 --- a/arch/um/drivers/cow_user.c +++ b/arch/um/drivers/cow_user.c @@ -8,11 +8,10 @@ * that. */ #include -#include #include #include #include -#include +#include #include "cow.h" #include "cow_sys.h" @@ -214,8 +213,8 @@ int write_cow_header(char *cow_file, int fd, char *backing_file, "header\n"); goto out; } - header->magic = htonl(COW_MAGIC); - header->version = htonl(COW_VERSION); + header->magic = htobe32(COW_MAGIC); + header->version = htobe32(COW_VERSION); err = -EINVAL; if (strlen(backing_file) > sizeof(header->backing_file) - 1) { @@ -246,10 +245,10 @@ int write_cow_header(char *cow_file, int fd, char *backing_file, goto out_free; } - header->mtime = htonl(modtime); - header->size = htonll(*size); - header->sectorsize = htonl(sectorsize); - header->alignment = htonl(alignment); + header->mtime = htobe32(modtime); + header->size = htobe64(*size); + header->sectorsize = htobe32(sectorsize); + header->alignment = htobe32(alignment); header->cow_format = COW_BITMAP; err = cow_write_file(fd, header, sizeof(*header)); @@ -301,8 +300,8 @@ int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg, magic = header->v1.magic; if (magic == COW_MAGIC) version = header->v1.version; - else if (magic == ntohl(COW_MAGIC)) - version = ntohl(header->v1.version); + else if (magic == be32toh(COW_MAGIC)) + version = be32toh(header->v1.version); /* No error printed because the non-COW case comes through here */ else goto out; @@ -327,9 +326,9 @@ int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg, "header\n"); goto out; } - *mtime_out = ntohl(header->v2.mtime); - *size_out = ntohll(header->v2.size); - *sectorsize_out = ntohl(header->v2.sectorsize); + *mtime_out = be32toh(header->v2.mtime); + *size_out = be64toh(header->v2.size); + *sectorsize_out = be32toh(header->v2.sectorsize); *bitmap_offset_out = sizeof(header->v2); *align_out = *sectorsize_out; file = header->v2.backing_file; @@ -341,10 +340,10 @@ int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg, "header\n"); goto out; } - *mtime_out = ntohl(header->v3.mtime); - *size_out = ntohll(header->v3.size); - *sectorsize_out = ntohl(header->v3.sectorsize); - *align_out = ntohl(header->v3.alignment); + *mtime_out = be32toh(header->v3.mtime); + *size_out = be64toh(header->v3.size); + *sectorsize_out = be32toh(header->v3.sectorsize); + *align_out = be32toh(header->v3.alignment); if (*align_out == 0) { cow_printf("read_cow_header - invalid COW header, " "align == 0\n"); @@ -366,16 +365,16 @@ int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg, * this was used until Dec2005 - 64bits are needed to represent * 2038+. I.e. we can safely do this truncating cast. * - * Additionally, we must use ntohl() instead of ntohll(), since + * Additionally, we must use be32toh() instead of be64toh(), since * the program used to use the former (tested - I got mtime * mismatch "0 vs whatever"). * * Ever heard about bug-to-bug-compatibility ? ;-) */ - *mtime_out = (time32_t) ntohl(header->v3_b.mtime); + *mtime_out = (time32_t) be32toh(header->v3_b.mtime); - *size_out = ntohll(header->v3_b.size); - *sectorsize_out = ntohl(header->v3_b.sectorsize); - *align_out = ntohl(header->v3_b.alignment); + *size_out = be64toh(header->v3_b.size); + *sectorsize_out = be32toh(header->v3_b.sectorsize); + *align_out = be32toh(header->v3_b.alignment); if (*align_out == 0) { cow_printf("read_cow_header - invalid COW header, " "align == 0\n"); -- cgit v0.10.2 From a3a85a763c399c0bf483a30d82d2d613e6f94cd3 Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Thu, 29 Mar 2012 18:47:46 +0200 Subject: um: Disintegrate asm/system.h MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Richard Weinberger Reported-by: Toralf Förster CC: dhowells@redhat.com diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c index e672bd6..43b39d6 100644 --- a/arch/um/drivers/mconsole_kern.c +++ b/arch/um/drivers/mconsole_kern.c @@ -22,6 +22,7 @@ #include #include #include +#include #include "init.h" #include "irq_kern.h" diff --git a/arch/um/include/asm/Kbuild b/arch/um/include/asm/Kbuild index 8419f5c..bb5d6e6 100644 --- a/arch/um/include/asm/Kbuild +++ b/arch/um/include/asm/Kbuild @@ -1,3 +1,3 @@ generic-y += bug.h cputime.h device.h emergency-restart.h futex.h hardirq.h generic-y += hw_irq.h irq_regs.h kdebug.h percpu.h sections.h topology.h xor.h -generic-y += ftrace.h pci.h io.h param.h delay.h mutex.h current.h +generic-y += ftrace.h pci.h io.h param.h delay.h mutex.h current.h exec.h diff --git a/arch/x86/um/asm/barrier.h b/arch/x86/um/asm/barrier.h new file mode 100644 index 0000000..7d01b8c --- /dev/null +++ b/arch/x86/um/asm/barrier.h @@ -0,0 +1,75 @@ +#ifndef _ASM_UM_BARRIER_H_ +#define _ASM_UM_BARRIER_H_ + +#include +#include +#include +#include +#include + +#include +#include + +/* + * Force strict CPU ordering. + * And yes, this is required on UP too when we're talking + * to devices. + */ +#ifdef CONFIG_X86_32 + +#define mb() alternative("lock; addl $0,0(%%esp)", "mfence", X86_FEATURE_XMM2) +#define rmb() alternative("lock; addl $0,0(%%esp)", "lfence", X86_FEATURE_XMM2) +#define wmb() alternative("lock; addl $0,0(%%esp)", "sfence", X86_FEATURE_XMM) + +#else /* CONFIG_X86_32 */ + +#define mb() asm volatile("mfence" : : : "memory") +#define rmb() asm volatile("lfence" : : : "memory") +#define wmb() asm volatile("sfence" : : : "memory") + +#endif /* CONFIG_X86_32 */ + +#define read_barrier_depends() do { } while (0) + +#ifdef CONFIG_SMP + +#define smp_mb() mb() +#ifdef CONFIG_X86_PPRO_FENCE +#define smp_rmb() rmb() +#else /* CONFIG_X86_PPRO_FENCE */ +#define smp_rmb() barrier() +#endif /* CONFIG_X86_PPRO_FENCE */ + +#ifdef CONFIG_X86_OOSTORE +#define smp_wmb() wmb() +#else /* CONFIG_X86_OOSTORE */ +#define smp_wmb() barrier() +#endif /* CONFIG_X86_OOSTORE */ + +#define smp_read_barrier_depends() read_barrier_depends() +#define set_mb(var, value) do { (void)xchg(&var, value); } while (0) + +#else /* CONFIG_SMP */ + +#define smp_mb() barrier() +#define smp_rmb() barrier() +#define smp_wmb() barrier() +#define smp_read_barrier_depends() do { } while (0) +#define set_mb(var, value) do { var = value; barrier(); } while (0) + +#endif /* CONFIG_SMP */ + +/* + * Stop RDTSC speculation. This is needed when you need to use RDTSC + * (or get_cycles or vread that possibly accesses the TSC) in a defined + * code region. + * + * (Could use an alternative three way for this if there was one.) + */ +static inline void rdtsc_barrier(void) +{ + alternative(ASM_NOP3, "mfence", X86_FEATURE_MFENCE_RDTSC); + alternative(ASM_NOP3, "lfence", X86_FEATURE_LFENCE_RDTSC); +} + +#endif diff --git a/arch/x86/um/asm/switch_to.h b/arch/x86/um/asm/switch_to.h new file mode 100644 index 0000000..cf97d20 --- /dev/null +++ b/arch/x86/um/asm/switch_to.h @@ -0,0 +1,7 @@ +#ifndef _ASM_UM_SWITCH_TO_H_ +#define _ASM_UM_SWITCH_TO_H_ + +extern void *_switch_to(void *prev, void *next, void *last); +#define switch_to(prev, next, last) prev = _switch_to(prev, next, last) + +#endif diff --git a/arch/x86/um/asm/system.h b/arch/x86/um/asm/system.h deleted file mode 100644 index a459fd9..0000000 --- a/arch/x86/um/asm/system.h +++ /dev/null @@ -1,135 +0,0 @@ -#ifndef _ASM_X86_SYSTEM_H_ -#define _ASM_X86_SYSTEM_H_ - -#include -#include -#include -#include -#include - -#include -#include - -/* entries in ARCH_DLINFO: */ -#ifdef CONFIG_IA32_EMULATION -# define AT_VECTOR_SIZE_ARCH 2 -#else -# define AT_VECTOR_SIZE_ARCH 1 -#endif - -extern unsigned long arch_align_stack(unsigned long sp); - -void default_idle(void); - -/* - * Force strict CPU ordering. - * And yes, this is required on UP too when we're talking - * to devices. - */ -#ifdef CONFIG_X86_32 -/* - * Some non-Intel clones support out of order store. wmb() ceases to be a - * nop for these. - */ -#define mb() alternative("lock; addl $0,0(%%esp)", "mfence", X86_FEATURE_XMM2) -#define rmb() alternative("lock; addl $0,0(%%esp)", "lfence", X86_FEATURE_XMM2) -#define wmb() alternative("lock; addl $0,0(%%esp)", "sfence", X86_FEATURE_XMM) -#else -#define mb() asm volatile("mfence":::"memory") -#define rmb() asm volatile("lfence":::"memory") -#define wmb() asm volatile("sfence" ::: "memory") -#endif - -/** - * read_barrier_depends - Flush all pending reads that subsequents reads - * depend on. - * - * No data-dependent reads from memory-like regions are ever reordered - * over this barrier. All reads preceding this primitive are guaranteed - * to access memory (but not necessarily other CPUs' caches) before any - * reads following this primitive that depend on the data return by - * any of the preceding reads. This primitive is much lighter weight than - * rmb() on most CPUs, and is never heavier weight than is - * rmb(). - * - * These ordering constraints are respected by both the local CPU - * and the compiler. - * - * Ordering is not guaranteed by anything other than these primitives, - * not even by data dependencies. See the documentation for - * memory_barrier() for examples and URLs to more information. - * - * For example, the following code would force ordering (the initial - * value of "a" is zero, "b" is one, and "p" is "&a"): - * - * - * CPU 0 CPU 1 - * - * b = 2; - * memory_barrier(); - * p = &b; q = p; - * read_barrier_depends(); - * d = *q; - * - * - * because the read of "*q" depends on the read of "p" and these - * two reads are separated by a read_barrier_depends(). However, - * the following code, with the same initial values for "a" and "b": - * - * - * CPU 0 CPU 1 - * - * a = 2; - * memory_barrier(); - * b = 3; y = b; - * read_barrier_depends(); - * x = a; - * - * - * does not enforce ordering, since there is no data dependency between - * the read of "a" and the read of "b". Therefore, on some CPUs, such - * as Alpha, "y" could be set to 3 and "x" to 0. Use rmb() - * in cases like this where there are no data dependencies. - **/ - -#define read_barrier_depends() do { } while (0) - -#ifdef CONFIG_SMP -#define smp_mb() mb() -#ifdef CONFIG_X86_PPRO_FENCE -# define smp_rmb() rmb() -#else -# define smp_rmb() barrier() -#endif -#ifdef CONFIG_X86_OOSTORE -# define smp_wmb() wmb() -#else -# define smp_wmb() barrier() -#endif -#define smp_read_barrier_depends() read_barrier_depends() -#define set_mb(var, value) do { (void)xchg(&var, value); } while (0) -#else -#define smp_mb() barrier() -#define smp_rmb() barrier() -#define smp_wmb() barrier() -#define smp_read_barrier_depends() do { } while (0) -#define set_mb(var, value) do { var = value; barrier(); } while (0) -#endif - -/* - * Stop RDTSC speculation. This is needed when you need to use RDTSC - * (or get_cycles or vread that possibly accesses the TSC) in a defined - * code region. - * - * (Could use an alternative three way for this if there was one.) - */ -static inline void rdtsc_barrier(void) -{ - alternative(ASM_NOP3, "mfence", X86_FEATURE_MFENCE_RDTSC); - alternative(ASM_NOP3, "lfence", X86_FEATURE_LFENCE_RDTSC); -} - -extern void *_switch_to(void *prev, void *next, void *last); -#define switch_to(prev, next, last) prev = _switch_to(prev, next, last) - -#endif -- cgit v0.10.2 From 76b278edd99fb55525fcf2706095e388bd3d122c Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Thu, 29 Mar 2012 19:10:42 +0200 Subject: um: Use asm-generic/switch_to.h Signed-off-by: Richard Weinberger diff --git a/arch/um/include/asm/Kbuild b/arch/um/include/asm/Kbuild index bb5d6e6..fff2435 100644 --- a/arch/um/include/asm/Kbuild +++ b/arch/um/include/asm/Kbuild @@ -1,3 +1,4 @@ generic-y += bug.h cputime.h device.h emergency-restart.h futex.h hardirq.h generic-y += hw_irq.h irq_regs.h kdebug.h percpu.h sections.h topology.h xor.h generic-y += ftrace.h pci.h io.h param.h delay.h mutex.h current.h exec.h +generic-y += switch_to.h diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c index f386d04..2b73ded 100644 --- a/arch/um/kernel/process.c +++ b/arch/um/kernel/process.c @@ -88,11 +88,8 @@ static inline void set_current(struct task_struct *task) extern void arch_switch_to(struct task_struct *to); -void *_switch_to(void *prev, void *next, void *last) +void *__switch_to(struct task_struct *from, struct task_struct *to) { - struct task_struct *from = prev; - struct task_struct *to = next; - to->thread.prev_sched = from; set_current(to); @@ -111,7 +108,6 @@ void *_switch_to(void *prev, void *next, void *last) } while (current->thread.saved_task); return current->thread.prev_sched; - } void interrupt_end(void) diff --git a/arch/x86/um/asm/switch_to.h b/arch/x86/um/asm/switch_to.h deleted file mode 100644 index cf97d20..0000000 --- a/arch/x86/um/asm/switch_to.h +++ /dev/null @@ -1,7 +0,0 @@ -#ifndef _ASM_UM_SWITCH_TO_H_ -#define _ASM_UM_SWITCH_TO_H_ - -extern void *_switch_to(void *prev, void *next, void *last); -#define switch_to(prev, next, last) prev = _switch_to(prev, next, last) - -#endif -- cgit v0.10.2 From 657b12d3a1508a3f06f7afe21d5dda7252279520 Mon Sep 17 00:00:00 2001 From: Boaz Harrosh Date: Mon, 26 Mar 2012 19:18:22 -0700 Subject: um: uml_setup_stubs': warning: unused variable 'pages' Fix the following gcc complain arch/um/kernel/skas/mmu.c: In function 'uml_setup_stubs': arch/um/kernel/skas/mmu.c:106:16: warning: unused variable 'pages' [-Wunused-variable] Signed-Signed-off-by: Boaz Harrosh Signed-off-by: Richard Weinberger diff --git a/arch/um/kernel/skas/mmu.c b/arch/um/kernel/skas/mmu.c index 4947b31..0a49ef0 100644 --- a/arch/um/kernel/skas/mmu.c +++ b/arch/um/kernel/skas/mmu.c @@ -103,7 +103,6 @@ int init_new_context(struct task_struct *task, struct mm_struct *mm) void uml_setup_stubs(struct mm_struct *mm) { - struct page **pages; int err, ret; if (!skas_needs_stub) -- cgit v0.10.2 From 70fa4a62e913dde2d100e0be2711562742f58bee Mon Sep 17 00:00:00 2001 From: Tom Goff Date: Wed, 4 Apr 2012 12:06:20 -0700 Subject: sysfs: Update the name hash for an entry after changing the namespace This is needed to allow renaming network devices that have been moved to another network namespace. Signed-off-by: Tom Goff Signed-off-by: Greg Kroah-Hartman diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c index 2a7a3f5..8ddc102 100644 --- a/fs/sysfs/dir.c +++ b/fs/sysfs/dir.c @@ -878,7 +878,6 @@ int sysfs_rename(struct sysfs_dirent *sd, dup_name = sd->s_name; sd->s_name = new_name; - sd->s_hash = sysfs_name_hash(sd->s_ns, sd->s_name); } /* Move to the appropriate place in the appropriate directories rbtree. */ @@ -886,6 +885,7 @@ int sysfs_rename(struct sysfs_dirent *sd, sysfs_get(new_parent_sd); sysfs_put(sd->s_parent); sd->s_ns = new_ns; + sd->s_hash = sysfs_name_hash(sd->s_ns, sd->s_name); sd->s_parent = new_parent_sd; sysfs_link_sibling(sd); -- cgit v0.10.2 From ce5c9851855bab190c9a142761d54ba583ab094c Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Fri, 23 Mar 2012 15:23:18 +0100 Subject: USB: pl2303: fix DTR/RTS being raised on baud rate change MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit DTR/RTS should only be raised when changing baudrate from B0 and not on any baud rate change (> B0). Reported-by: Søren Holm Cc: stable Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index ff4a174..a1a9062 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -420,7 +420,7 @@ static void pl2303_set_termios(struct tty_struct *tty, control = priv->line_control; if ((cflag & CBAUD) == B0) priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS); - else + else if ((old_termios->c_cflag & CBAUD) == B0) priv->line_control |= (CONTROL_DTR | CONTROL_RTS); if (control != priv->line_control) { control = priv->line_control; -- cgit v0.10.2 From 9ac2feb22b5b821d81463bef92698ef7682a3145 Mon Sep 17 00:00:00 2001 From: Santiago Garcia Mantinan Date: Mon, 19 Mar 2012 18:17:00 +0100 Subject: USB: option: re-add NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED to option_id array Re-add NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED to option_id array Signed-off-by: Santiago Garcia Mantinan Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 836cfa9..f4465cc 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -708,6 +708,7 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_EMBEDDED_FULLSPEED) }, { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_FULLSPEED) }, { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_HIGHSPEED) }, + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED) }, { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED3) }, { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED4) }, { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED5) }, -- cgit v0.10.2 From 3a450850e2bb0f92cacb12da90fe98eccd105468 Mon Sep 17 00:00:00 2001 From: Aleksey Babahin Date: Tue, 20 Mar 2012 00:46:31 +0400 Subject: USB: serial: metro-usb: Fix idProduct for Uni-Directional mode. The right idProduct for Metrologic Bar Code Scanner in Uni-Directional Serial Emulation mode is 0x0700. Also rename idProduct for Bi-Directional mode to be a bit more informative. Signed-off-by: Aleksey Babahin Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/metro-usb.c index 6e1622f..08d16e8 100644 --- a/drivers/usb/serial/metro-usb.c +++ b/drivers/usb/serial/metro-usb.c @@ -27,8 +27,8 @@ /* Product information. */ #define FOCUS_VENDOR_ID 0x0C2E -#define FOCUS_PRODUCT_ID 0x0720 -#define FOCUS_PRODUCT_ID_UNI 0x0710 +#define FOCUS_PRODUCT_ID_BI 0x0720 +#define FOCUS_PRODUCT_ID_UNI 0x0700 #define METROUSB_SET_REQUEST_TYPE 0x40 #define METROUSB_SET_MODEM_CTRL_REQUEST 10 @@ -47,7 +47,7 @@ struct metrousb_private { /* Device table list. */ static struct usb_device_id id_table[] = { - { USB_DEVICE(FOCUS_VENDOR_ID, FOCUS_PRODUCT_ID) }, + { USB_DEVICE(FOCUS_VENDOR_ID, FOCUS_PRODUCT_ID_BI) }, { USB_DEVICE(FOCUS_VENDOR_ID, FOCUS_PRODUCT_ID_UNI) }, { }, /* Terminating entry. */ }; -- cgit v0.10.2 From 891a3b1fddb24b4b53426685bd0390bb74c9b5b3 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Wed, 28 Mar 2012 16:10:49 -0400 Subject: USB: fix bug in serial driver unregistration This patch (as1536) fixes a bug in the USB serial core. Unloading and reloading a serial driver while a serial device is plugged in causes errors because of the code in usb_serial_disconnect() that tries to make sure the port_remove method is called. With the new order of driver registration introduced in the 3.4 kernel, this is definitely not the right thing to do (if indeed it ever was). The patch removes that whole section code, along with the mechanism for keeping track of each port's registration state, which is no longer needed. The driver core can handle all that stuff for us. Note: This has been tested only with one or two USB serial drivers. In theory, other drivers might still run into trouble. But if they do, it will be the fault of the drivers, not of this patch -- that is, the drivers will need to be fixed. Signed-off-by: Alan Stern Reported-and-tested-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/bus.c b/drivers/usb/serial/bus.c index 7f547dc..ed8adb0 100644 --- a/drivers/usb/serial/bus.c +++ b/drivers/usb/serial/bus.c @@ -60,8 +60,6 @@ static int usb_serial_device_probe(struct device *dev) retval = -ENODEV; goto exit; } - if (port->dev_state != PORT_REGISTERING) - goto exit; driver = port->serial->type; if (driver->port_probe) { @@ -98,9 +96,6 @@ static int usb_serial_device_remove(struct device *dev) if (!port) return -ENODEV; - if (port->dev_state != PORT_UNREGISTERING) - return retval; - device_remove_file(&port->dev, &dev_attr_port_number); driver = port->serial->type; diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 69230f0..5413bd5 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -1070,17 +1070,12 @@ int usb_serial_probe(struct usb_interface *interface, port = serial->port[i]; dev_set_name(&port->dev, "ttyUSB%d", port->number); dbg ("%s - registering %s", __func__, dev_name(&port->dev)); - port->dev_state = PORT_REGISTERING; device_enable_async_suspend(&port->dev); retval = device_add(&port->dev); - if (retval) { + if (retval) dev_err(&port->dev, "Error registering port device, " "continuing\n"); - port->dev_state = PORT_UNREGISTERED; - } else { - port->dev_state = PORT_REGISTERED; - } } usb_serial_console_init(debug, minor); @@ -1124,22 +1119,8 @@ void usb_serial_disconnect(struct usb_interface *interface) } kill_traffic(port); cancel_work_sync(&port->work); - if (port->dev_state == PORT_REGISTERED) { - - /* Make sure the port is bound so that the - * driver's port_remove method is called. - */ - if (!port->dev.driver) { - int rc; - - port->dev.driver = - &serial->type->driver; - rc = device_bind_driver(&port->dev); - } - port->dev_state = PORT_UNREGISTERING; + if (device_is_registered(&port->dev)) device_del(&port->dev); - port->dev_state = PORT_UNREGISTERED; - } } } serial->type->disconnect(serial); diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h index fbb666b..4742838 100644 --- a/include/linux/usb/serial.h +++ b/include/linux/usb/serial.h @@ -28,13 +28,6 @@ /* parity check flag */ #define RELEVANT_IFLAG(iflag) (iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK)) -enum port_dev_state { - PORT_UNREGISTERED, - PORT_REGISTERING, - PORT_REGISTERED, - PORT_UNREGISTERING, -}; - /* USB serial flags */ #define USB_SERIAL_WRITE_BUSY 0 @@ -124,7 +117,6 @@ struct usb_serial_port { char throttle_req; unsigned long sysrq; /* sysrq timeout */ struct device dev; - enum port_dev_state dev_state; }; #define to_usb_serial_port(d) container_of(d, struct usb_serial_port, dev) -- cgit v0.10.2 From cd4376e23a59a2adf3084cb5f4a523e6d5fd4e49 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Wed, 28 Mar 2012 15:56:17 -0400 Subject: USB: don't ignore suspend errors for root hubs This patch (as1532) fixes a mistake in the USB suspend code. When the system is going to sleep, we should ignore errors in powering down USB devices, because they don't really matter. The devices will go to low power anyway when the entire USB bus gets suspended (except for SuperSpeed devices; maybe they will need special treatment later). However we should not ignore errors in suspending root hubs, especially if the error indicates that the suspend raced with a wakeup request. Doing so might leave the bus powered on while the system was supposed to be asleep, or it might cause the suspend of the root hub's parent controller device to fail, or it might cause a wakeup request to be ignored. The patch fixes the problem by ignoring errors only when the device in question is not a root hub. Signed-off-by: Alan Stern Reported-by: Chen Peter CC: Tested-by: Chen Peter Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index f8e2d6d..9a56635 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -1189,8 +1189,13 @@ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg) if (status == 0) { status = usb_suspend_device(udev, msg); - /* Again, ignore errors during system sleep transitions */ - if (!PMSG_IS_AUTO(msg)) + /* + * Ignore errors from non-root-hub devices during + * system sleep transitions. For the most part, + * these devices should go to low power anyway when + * the entire bus is suspended. + */ + if (udev->parent && !PMSG_IS_AUTO(msg)) status = 0; } -- cgit v0.10.2 From 8430eac2f6a3c2adce22d490e2ab8bb50d59077a Mon Sep 17 00:00:00 2001 From: Jozsef Kadlecsik Date: Mon, 9 Apr 2012 16:32:16 +0200 Subject: netfilter: nf_ct_ipv4: handle invalid IPv4 and IPv6 packets consistently IPv6 conntrack marked invalid packets as INVALID and let the user drop those by an explicit rule, while IPv4 conntrack dropped such packets itself. IPv4 conntrack is changed so that it marks INVALID packets and let the user to drop them. Signed-off-by: Jozsef Kadlecsik Signed-off-by: Pablo Neira Ayuso diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c index de9da21..750b06a 100644 --- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c +++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c @@ -74,12 +74,12 @@ static int ipv4_get_l4proto(const struct sk_buff *skb, unsigned int nhoff, iph = skb_header_pointer(skb, nhoff, sizeof(_iph), &_iph); if (iph == NULL) - return -NF_DROP; + return -NF_ACCEPT; /* Conntrack defragments packets, we might still see fragments * inside ICMP packets though. */ if (iph->frag_off & htons(IP_OFFSET)) - return -NF_DROP; + return -NF_ACCEPT; *dataoff = nhoff + (iph->ihl << 2); *protonum = iph->protocol; -- cgit v0.10.2 From fca5430d48d53eaf103498c33fd0d1984b9f448b Mon Sep 17 00:00:00 2001 From: Simon Arlott Date: Mon, 26 Mar 2012 21:19:40 +0100 Subject: USB: ftdi_sio: fix status line change handling for TIOCMIWAIT and TIOCGICOUNT Handling of TIOCMIWAIT was changed by commit 1d749f9afa657f6ee9336b2bc1fcd750a647d157 USB: ftdi_sio.c: Use ftdi async_icount structure for TIOCMIWAIT, as in other drivers FTDI_STATUS_B0_MASK does not indicate the changed modem status lines, it indicates the value of the current modem status lines. An xor is still required to determine which lines have changed. The count was only being incremented if the line was high. The only reason TIOCMIWAIT still worked was because the status packet is repeated every 1ms, so the count was always changing. The wakeup itself still ran based on the status lines changing. This change fixes handling of updates to the modem status lines and allows multiple processes to use TIOCMIWAIT concurrently. Tested with two processes waiting on different status lines being toggled independently. Signed-off-by: Simon Arlott Cc: Uwe Bonnes Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index ff8605b..c02e460 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -75,7 +75,7 @@ struct ftdi_private { unsigned long last_dtr_rts; /* saved modem control outputs */ struct async_icount icount; wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */ - char prev_status, diff_status; /* Used for TIOCMIWAIT */ + char prev_status; /* Used for TIOCMIWAIT */ char transmit_empty; /* If transmitter is empty or not */ struct usb_serial_port *port; __u16 interface; /* FT2232C, FT2232H or FT4232H port interface @@ -1982,17 +1982,19 @@ static int ftdi_process_packet(struct tty_struct *tty, N.B. packet may be processed more than once, but differences are only processed once. */ status = packet[0] & FTDI_STATUS_B0_MASK; - if (status & FTDI_RS0_CTS) - priv->icount.cts++; - if (status & FTDI_RS0_DSR) - priv->icount.dsr++; - if (status & FTDI_RS0_RI) - priv->icount.rng++; - if (status & FTDI_RS0_RLSD) - priv->icount.dcd++; if (status != priv->prev_status) { - priv->diff_status |= status ^ priv->prev_status; - wake_up_interruptible(&priv->delta_msr_wait); + char diff_status = status ^ priv->prev_status; + + if (diff_status & FTDI_RS0_CTS) + priv->icount.cts++; + if (diff_status & FTDI_RS0_DSR) + priv->icount.dsr++; + if (diff_status & FTDI_RS0_RI) + priv->icount.rng++; + if (diff_status & FTDI_RS0_RLSD) + priv->icount.dcd++; + + wake_up_interruptible_all(&priv->delta_msr_wait); priv->prev_status = status; } -- cgit v0.10.2 From 876ae50d94b02f3f523aa451b45ec5fb9c25d221 Mon Sep 17 00:00:00 2001 From: Simon Arlott Date: Mon, 26 Mar 2012 23:27:59 +0100 Subject: USB: ftdi_sio: fix race condition in TIOCMIWAIT, and abort of TIOCMIWAIT when the device is removed MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit There are two issues here, one is that the device is generating spurious very fast modem status line changes somewhere: CTS becomes high then low 18µs later: [121226.924373] ftdi_process_packet: prev rng=0 dsr=10 dcd=0 cts=6 [121226.924378] ftdi_process_packet: status=10 prev=00 diff=10 [121226.924382] ftdi_process_packet: now rng=0 dsr=10 dcd=0 cts=7 (wake_up_interruptible is called) [121226.924391] ftdi_process_packet: prev rng=0 dsr=10 dcd=0 cts=7 [121226.924394] ftdi_process_packet: status=00 prev=10 diff=10 [121226.924397] ftdi_process_packet: now rng=0 dsr=10 dcd=0 cts=8 (wake_up_interruptible is called) This wakes up the task in TIOCMIWAIT: [121226.924405] ftdi_ioctl: 19451 rng=0->0 dsr=10->10 dcd=0->0 cts=6->8 (wait from 20:51:46 returns and observes both changes) Which then calls TIOCMIWAIT again: 20:51:46.400239 ioctl(3, TIOCMIWAIT, 0x20) = 0 22:11:09.441818 ioctl(3, TIOCMGET, [TIOCM_DTR|TIOCM_RTS]) = 0 22:11:09.442812 ioctl(3, TIOCMIWAIT, 0x20) = -1 EIO (Input/output error) (the second wake_up_interruptible takes effect and an I/O error occurs) The other issue is that TIOCMIWAIT will wait forever (unless the task is interrupted) if the device is removed. This change removes the -EIO return that occurs if the counts don't appear to have changed. Multiple counts may have been processed as one or the waiting task may have started waiting after recording the current count. It adds a bool to indicate that the device has been removed so that TIOCMIWAIT doesn't wait forever, and wakes up any tasks so that they can return -EIO. Signed-off-by: Simon Arlott Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index c02e460..02e7f2d 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -76,6 +76,7 @@ struct ftdi_private { struct async_icount icount; wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */ char prev_status; /* Used for TIOCMIWAIT */ + bool dev_gone; /* Used to abort TIOCMIWAIT */ char transmit_empty; /* If transmitter is empty or not */ struct usb_serial_port *port; __u16 interface; /* FT2232C, FT2232H or FT4232H port interface @@ -1681,6 +1682,7 @@ static int ftdi_sio_port_probe(struct usb_serial_port *port) init_waitqueue_head(&priv->delta_msr_wait); priv->flags = ASYNC_LOW_LATENCY; + priv->dev_gone = false; if (quirk && quirk->port_probe) quirk->port_probe(priv); @@ -1839,6 +1841,9 @@ static int ftdi_sio_port_remove(struct usb_serial_port *port) dbg("%s", __func__); + priv->dev_gone = true; + wake_up_interruptible_all(&priv->delta_msr_wait); + remove_sysfs_attrs(port); kref_put(&priv->kref, ftdi_sio_priv_release); @@ -2397,15 +2402,12 @@ static int ftdi_ioctl(struct tty_struct *tty, */ case TIOCMIWAIT: cprev = priv->icount; - while (1) { + while (!priv->dev_gone) { interruptible_sleep_on(&priv->delta_msr_wait); /* see if a signal did it */ if (signal_pending(current)) return -ERESTARTSYS; cnow = priv->icount; - if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && - cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) - return -EIO; /* no change => error */ if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || @@ -2414,7 +2416,7 @@ static int ftdi_ioctl(struct tty_struct *tty, } cprev = cnow; } - /* not reached */ + return -EIO; break; case TIOCSERGETLSR: return get_lsr_info(port, (struct serial_struct __user *)arg); -- cgit v0.10.2 From c5d703dcc776cb542b41665f2b7e2ba054efb4a7 Mon Sep 17 00:00:00 2001 From: Anton Samokhvalov Date: Wed, 4 Apr 2012 22:26:01 +0400 Subject: USB: sierra: add support for Sierra Wireless MC7710 Just add new device id. 3G works fine, LTE not tested. Signed-off-by: Anton Samokhvalov Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index f14465a..fdd5aa2 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -289,6 +289,7 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ { USB_DEVICE(0x1199, 0x6859) }, /* Sierra Wireless AirCard 885 E */ { USB_DEVICE(0x1199, 0x685A) }, /* Sierra Wireless AirCard 885 E */ + { USB_DEVICE(0x1199, 0x68A2) }, /* Sierra Wireless MC7710 */ /* Sierra Wireless C885 */ { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6880, 0xFF, 0xFF, 0xFF)}, /* Sierra Wireless C888, Air Card 501, USB 303, USB 304 */ -- cgit v0.10.2 From 879d38e6bc36d73b0ac40ec9b0d839fda9fa8b1a Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Tue, 3 Apr 2012 15:24:18 -0400 Subject: USB: fix race between root-hub suspend and remote wakeup This patch (as1533) fixes a race between root-hub suspend and remote wakeup. If a wakeup event occurs while a root hub is suspending, it might not cause the suspend to fail. Although the host controller drivers check for pending wakeup events at the start of their bus_suspend routines, they generally do not check for wakeup events while the routines are running. In addition, if a wakeup event occurs any time after khubd is frozen and before the root hub is fully suspended, it might not cause a system sleep transition to fail. For example, the host controller drivers do not fail root-hub suspends when a connect-change event is pending. To fix both these issues, this patch causes hcd_bus_suspend() to query the controller driver's hub_status_data method after a root hub is suspended, if the root hub is enabled for wakeup. Any pending status changes will count as wakeup events, causing the root hub to be resumed and the overall suspend to fail with -EBUSY. A significant point is that not all events are reflected immediately in the status bits. Both EHCI and UHCI controllers notify the CPU when remote wakeup begins on a port, but the port's suspend-change status bit doesn't get set until after the port has completed the transition out of the suspend state, some 25 milliseconds later. Consequently, the patch will interpret any nonzero return value from hub_status_data as indicating a pending event, even if none of the status bits are set in the data buffer. Follow-up patches make the necessary changes to ehci-hcd and uhci-hcd. Signed-off-by: Alan Stern CC: Sarah Sharp CC: Chen Peter-B29397 Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 9d7fc9a..140d3e1 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -1978,6 +1978,18 @@ int hcd_bus_suspend(struct usb_device *rhdev, pm_message_t msg) if (status == 0) { usb_set_device_state(rhdev, USB_STATE_SUSPENDED); hcd->state = HC_STATE_SUSPENDED; + + /* Did we race with a root-hub wakeup event? */ + if (rhdev->do_remote_wakeup) { + char buffer[6]; + + status = hcd->driver->hub_status_data(hcd, buffer); + if (status != 0) { + dev_dbg(&rhdev->dev, "suspend raced with wakeup event\n"); + hcd_bus_resume(rhdev, PMSG_AUTO_RESUME); + status = -EBUSY; + } + } } else { spin_lock_irq(&hcd_root_hub_lock); if (!HCD_DEAD(hcd)) { -- cgit v0.10.2 From a448e4dc25303fe551e4dafe16c8c7c34f1b9d82 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Tue, 3 Apr 2012 15:24:30 -0400 Subject: EHCI: keep track of ports being resumed and indicate in hub_status_data This patch (as1537) adds a bit-array to ehci-hcd for keeping track of which ports are undergoing a resume transition. If any of the bits are set when ehci_hub_status_data() is called, the routine will return a nonzero value even if no ports have any status changes pending. This will allow usbcore to handle races between root-hub suspend and port wakeup. Signed-off-by: Alan Stern CC: Sarah Sharp CC: Chen Peter-B29397 Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 057cdda..806cc95 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -347,6 +347,8 @@ static int ehci_reset (struct ehci_hcd *ehci) if (ehci->debug) dbgp_external_startup(); + ehci->port_c_suspend = ehci->suspended_ports = + ehci->resuming_ports = 0; return retval; } @@ -939,6 +941,7 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) * like usb_port_resume() does. */ ehci->reset_done[i] = jiffies + msecs_to_jiffies(25); + set_bit(i, &ehci->resuming_ports); ehci_dbg (ehci, "port %d remote wakeup\n", i + 1); mod_timer(&hcd->rh_timer, ehci->reset_done[i]); } diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index 256fbd4..38fe076 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -223,15 +223,10 @@ static int ehci_bus_suspend (struct usb_hcd *hcd) * remote wakeup, we must fail the suspend. */ if (hcd->self.root_hub->do_remote_wakeup) { - port = HCS_N_PORTS(ehci->hcs_params); - while (port--) { - if (ehci->reset_done[port] != 0) { - spin_unlock_irq(&ehci->lock); - ehci_dbg(ehci, "suspend failed because " - "port %d is resuming\n", - port + 1); - return -EBUSY; - } + if (ehci->resuming_ports) { + spin_unlock_irq(&ehci->lock); + ehci_dbg(ehci, "suspend failed because a port is resuming\n"); + return -EBUSY; } } @@ -554,16 +549,12 @@ static int ehci_hub_status_data (struct usb_hcd *hcd, char *buf) { struct ehci_hcd *ehci = hcd_to_ehci (hcd); - u32 temp, status = 0; + u32 temp, status; u32 mask; int ports, i, retval = 1; unsigned long flags; u32 ppcd = 0; - /* if !USB_SUSPEND, root hub timers won't get shut down ... */ - if (ehci->rh_state != EHCI_RH_RUNNING) - return 0; - /* init status to no-changes */ buf [0] = 0; ports = HCS_N_PORTS (ehci->hcs_params); @@ -572,6 +563,11 @@ ehci_hub_status_data (struct usb_hcd *hcd, char *buf) retval++; } + /* Inform the core about resumes-in-progress by returning + * a non-zero value even if there are no status changes. + */ + status = ehci->resuming_ports; + /* Some boards (mostly VIA?) report bogus overcurrent indications, * causing massive log spam unless we completely ignore them. It * may be relevant that VIA VT8235 controllers, where PORT_POWER is @@ -846,6 +842,7 @@ static int ehci_hub_control ( ehci_writel(ehci, temp & ~(PORT_RWC_BITS | PORT_RESUME), status_reg); + clear_bit(wIndex, &ehci->resuming_ports); retval = handshake(ehci, status_reg, PORT_RESUME, 0, 2000 /* 2msec */); if (retval != 0) { @@ -864,6 +861,7 @@ static int ehci_hub_control ( ehci->reset_done[wIndex])) { status |= USB_PORT_STAT_C_RESET << 16; ehci->reset_done [wIndex] = 0; + clear_bit(wIndex, &ehci->resuming_ports); /* force reset to complete */ ehci_writel(ehci, temp & ~(PORT_RWC_BITS | PORT_RESET), @@ -884,8 +882,10 @@ static int ehci_hub_control ( ehci_readl(ehci, status_reg)); } - if (!(temp & (PORT_RESUME|PORT_RESET))) + if (!(temp & (PORT_RESUME|PORT_RESET))) { ehci->reset_done[wIndex] = 0; + clear_bit(wIndex, &ehci->resuming_ports); + } /* transfer dedicated ports to the companion hc */ if ((temp & PORT_CONNECT) && @@ -920,6 +920,7 @@ static int ehci_hub_control ( status |= USB_PORT_STAT_SUSPEND; } else if (test_bit(wIndex, &ehci->suspended_ports)) { clear_bit(wIndex, &ehci->suspended_ports); + clear_bit(wIndex, &ehci->resuming_ports); ehci->reset_done[wIndex] = 0; if (temp & PORT_PE) set_bit(wIndex, &ehci->port_c_suspend); diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index 3de48a2..73544bd 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -224,6 +224,7 @@ static int tegra_ehci_hub_control( temp &= ~(PORT_RWC_BITS | PORT_WAKE_BITS); /* start resume signalling */ ehci_writel(ehci, temp | PORT_RESUME, status_reg); + set_bit(wIndex-1, &ehci->resuming_ports); spin_unlock_irqrestore(&ehci->lock, flags); msleep(20); @@ -236,6 +237,7 @@ static int tegra_ehci_hub_control( pr_err("%s: timeout waiting for SUSPEND\n", __func__); ehci->reset_done[wIndex-1] = 0; + clear_bit(wIndex-1, &ehci->resuming_ports); tegra->port_resuming = 1; goto done; diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index 8f9acbc..2694ed6 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -117,6 +117,8 @@ struct ehci_hcd { /* one per controller */ the change-suspend feature turned on */ unsigned long suspended_ports; /* which ports are suspended */ + unsigned long resuming_ports; /* which ports have + started to resume */ /* per-HC memory pools (could be per-bus, but ...) */ struct dma_pool *qh_pool; /* qh per active urb */ -- cgit v0.10.2 From b446b96fd11b69b7c4ecd47d869cff9094fd8802 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Tue, 3 Apr 2012 15:24:43 -0400 Subject: UHCI: hub_status_data should indicate if ports are resuming This patch (as1538) causes uhci_hub_status_data() to return a nonzero value when any port is undergoing a resume transition while the root hub is suspended. This will allow usbcore to handle races between root-hub suspend and port wakeup. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/uhci-hub.c b/drivers/usb/host/uhci-hub.c index 045cde4..768d542 100644 --- a/drivers/usb/host/uhci-hub.c +++ b/drivers/usb/host/uhci-hub.c @@ -196,11 +196,12 @@ static int uhci_hub_status_data(struct usb_hcd *hcd, char *buf) status = get_hub_status_data(uhci, buf); switch (uhci->rh_state) { - case UHCI_RH_SUSPENDING: case UHCI_RH_SUSPENDED: /* if port change, ask to be resumed */ - if (status || uhci->resuming_ports) + if (status || uhci->resuming_ports) { + status = 1; usb_hcd_resume_root_hub(hcd); + } break; case UHCI_RH_AUTO_STOPPED: -- cgit v0.10.2 From 83dbbdbb38666e20a75fad2294cf1df77c52f121 Mon Sep 17 00:00:00 2001 From: David Rientjes Date: Mon, 9 Apr 2012 16:56:18 -0700 Subject: android, lowmemorykiller: remove task handoff notifier The task handoff notifier leaks task_struct since it never gets freed after the callback returns NOTIFY_OK, which means it is responsible for doing so. It turns out the lowmemorykiller actually doesn't need this notifier at all. It's used to prevent unnecessary killing by waiting for a thread to exit as a result of lowmem_shrink(), however, it's possible to do this in the same way the kernel oom killer works by setting TIF_MEMDIE and avoid killing if we're still waiting for it to exit. The kernel oom killer will already automatically set TIF_MEMDIE for threads that are attempting to allocate memory that have a fatal signal. The thread selected by lowmem_shrink() will have such a signal after the lowmemorykiller sends it a SIGKILL, so this won't result in an unnecessary use of memory reserves for the thread to exit. This has the added benefit that we don't have to rely on CONFIG_PROFILING to prevent needlessly killing tasks. Reported-by: Werner Landgraf Cc: stable@vger.kernel.org Signed-off-by: David Rientjes Acked-by: Colin Cross Signed-off-by: Linus Torvalds diff --git a/drivers/staging/android/lowmemorykiller.c b/drivers/staging/android/lowmemorykiller.c index 052b43e..b91e4bc 100644 --- a/drivers/staging/android/lowmemorykiller.c +++ b/drivers/staging/android/lowmemorykiller.c @@ -55,7 +55,6 @@ static int lowmem_minfree[6] = { }; static int lowmem_minfree_size = 4; -static struct task_struct *lowmem_deathpending; static unsigned long lowmem_deathpending_timeout; #define lowmem_print(level, x...) \ @@ -64,24 +63,6 @@ static unsigned long lowmem_deathpending_timeout; printk(x); \ } while (0) -static int -task_notify_func(struct notifier_block *self, unsigned long val, void *data); - -static struct notifier_block task_nb = { - .notifier_call = task_notify_func, -}; - -static int -task_notify_func(struct notifier_block *self, unsigned long val, void *data) -{ - struct task_struct *task = data; - - if (task == lowmem_deathpending) - lowmem_deathpending = NULL; - - return NOTIFY_OK; -} - static int lowmem_shrink(struct shrinker *s, struct shrink_control *sc) { struct task_struct *tsk; @@ -97,19 +78,6 @@ static int lowmem_shrink(struct shrinker *s, struct shrink_control *sc) int other_file = global_page_state(NR_FILE_PAGES) - global_page_state(NR_SHMEM); - /* - * If we already have a death outstanding, then - * bail out right away; indicating to vmscan - * that we have nothing further to offer on - * this pass. - * - * Note: Currently you need CONFIG_PROFILING - * for this to work correctly. - */ - if (lowmem_deathpending && - time_before_eq(jiffies, lowmem_deathpending_timeout)) - return 0; - if (lowmem_adj_size < array_size) array_size = lowmem_adj_size; if (lowmem_minfree_size < array_size) @@ -148,6 +116,12 @@ static int lowmem_shrink(struct shrinker *s, struct shrink_control *sc) if (!p) continue; + if (test_tsk_thread_flag(p, TIF_MEMDIE) && + time_before_eq(jiffies, lowmem_deathpending_timeout)) { + task_unlock(p); + rcu_read_unlock(); + return 0; + } oom_score_adj = p->signal->oom_score_adj; if (oom_score_adj < min_score_adj) { task_unlock(p); @@ -174,15 +148,9 @@ static int lowmem_shrink(struct shrinker *s, struct shrink_control *sc) lowmem_print(1, "send sigkill to %d (%s), adj %d, size %d\n", selected->pid, selected->comm, selected_oom_score_adj, selected_tasksize); - /* - * If CONFIG_PROFILING is off, then we don't want to stall - * the killer by setting lowmem_deathpending. - */ -#ifdef CONFIG_PROFILING - lowmem_deathpending = selected; lowmem_deathpending_timeout = jiffies + HZ; -#endif send_sig(SIGKILL, selected, 0); + set_tsk_thread_flag(selected, TIF_MEMDIE); rem -= selected_tasksize; } lowmem_print(4, "lowmem_shrink %lu, %x, return %d\n", @@ -198,7 +166,6 @@ static struct shrinker lowmem_shrinker = { static int __init lowmem_init(void) { - task_handoff_register(&task_nb); register_shrinker(&lowmem_shrinker); return 0; } @@ -206,7 +173,6 @@ static int __init lowmem_init(void) static void __exit lowmem_exit(void) { unregister_shrinker(&lowmem_shrinker); - task_handoff_unregister(&task_nb); } module_param_named(cost, lowmem_shrinker.seeks, int, S_IRUGO | S_IWUSR); -- cgit v0.10.2 From 258f742635360175564e9470eb060ff4d4b984e7 Mon Sep 17 00:00:00 2001 From: Frank Rowand Date: Mon, 9 Apr 2012 17:59:03 -0700 Subject: modpost: Fix modpost license checking of vmlinux.o Commit f02e8a6596b7 ("module: Sort exported symbols") sorts symbols placing each of them in its own elf section. This sorting and merging into the canonical sections are done by the linker. Unfortunately modpost to generate Module.symvers file parses vmlinux.o (which is not linked yet) and all modules object files (which aren't linked yet). These aren't sanitized by the linker yet. That breaks modpost that can't detect license properly for modules. This patch makes modpost aware of the new exported symbols structure. [ This above is a slightly corrected version of the explanation of the problem, copied from commit 62a2635610db ("modpost: Fix modpost's license checking V3"). That commit fixed the problem for module object files, but not for vmlinux.o. This patch fixes modpost for vmlinux.o. ] Signed-off-by: Frank Rowand Signed-off-by: Alessio Igor Bogani Signed-off-by: Linus Torvalds diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index 3f01fd9..c4e7d15 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -132,8 +132,10 @@ static struct module *new_module(char *modname) /* strip trailing .o */ s = strrchr(p, '.'); if (s != NULL) - if (strcmp(s, ".o") == 0) + if (strcmp(s, ".o") == 0) { *s = '\0'; + mod->is_dot_o = 1; + } /* add to list */ mod->name = p; @@ -587,7 +589,8 @@ static void handle_modversions(struct module *mod, struct elf_info *info, unsigned int crc; enum export export; - if (!is_vmlinux(mod->name) && strncmp(symname, "__ksymtab", 9) == 0) + if ((!is_vmlinux(mod->name) || mod->is_dot_o) && + strncmp(symname, "__ksymtab", 9) == 0) export = export_from_secname(info, get_secindex(info, sym)); else export = export_from_sec(info, get_secindex(info, sym)); diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h index 2031119..51207e4 100644 --- a/scripts/mod/modpost.h +++ b/scripts/mod/modpost.h @@ -113,6 +113,7 @@ struct module { int has_cleanup; struct buffer dev_table_buf; char srcversion[25]; + int is_dot_o; }; struct elf_info { -- cgit v0.10.2 From 156d14da4cfc4fe01b705d6e2d22e44c0a2dbecd Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Mon, 9 Apr 2012 10:16:32 +0200 Subject: sound: sound/oss/msnd_pinnacle.c: add vfrees At the point of this error-handling code, HAVE_DSPCODEH may be undefined, so free INITCODE and PERMCODE as done elsewhere. A jump and label are introduced to avoid code duplication. Signed-off-by: Julia Lawall Signed-off-by: Takashi Iwai diff --git a/sound/oss/msnd_pinnacle.c b/sound/oss/msnd_pinnacle.c index 2c79d60..536c4c0 100644 --- a/sound/oss/msnd_pinnacle.c +++ b/sound/oss/msnd_pinnacle.c @@ -1294,6 +1294,8 @@ static int __init calibrate_adc(WORD srate) static int upload_dsp_code(void) { + int ret = 0; + msnd_outb(HPBLKSEL_0, dev.io + HP_BLKS); #ifndef HAVE_DSPCODEH INITCODESIZE = mod_firmware_load(INITCODEFILE, &INITCODE); @@ -1312,7 +1314,8 @@ static int upload_dsp_code(void) memcpy_toio(dev.base, PERMCODE, PERMCODESIZE); if (msnd_upload_host(&dev, INITCODE, INITCODESIZE) < 0) { printk(KERN_WARNING LOGNAME ": Error uploading to DSP\n"); - return -ENODEV; + ret = -ENODEV; + goto out; } #ifdef HAVE_DSPCODEH printk(KERN_INFO LOGNAME ": DSP firmware uploaded (resident)\n"); @@ -1320,12 +1323,13 @@ static int upload_dsp_code(void) printk(KERN_INFO LOGNAME ": DSP firmware uploaded\n"); #endif +out: #ifndef HAVE_DSPCODEH vfree(INITCODE); vfree(PERMCODE); #endif - return 0; + return ret; } #ifdef MSND_CLASSIC -- cgit v0.10.2 From 38be95dd3d314bd393a26f6e441ae2c57ef7f064 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Mon, 9 Apr 2012 10:16:35 +0200 Subject: ALSA: sound/isa/sscape.c: add missing resource-release code At the point of this error-handling code, both regions and the dma have been allocated, so free it as done in previous and subsequent error-handling code. Signed-off-by: Julia Lawall Signed-off-by: Takashi Iwai diff --git a/sound/isa/sscape.c b/sound/isa/sscape.c index b4a6aa9..8490f59 100644 --- a/sound/isa/sscape.c +++ b/sound/isa/sscape.c @@ -1019,13 +1019,15 @@ static int __devinit create_sscape(int dev, struct snd_card *card) irq_cfg = get_irq_config(sscape->type, irq[dev]); if (irq_cfg == INVALID_IRQ) { snd_printk(KERN_ERR "sscape: Invalid IRQ %d\n", irq[dev]); - return -ENXIO; + err = -ENXIO; + goto _release_dma; } mpu_irq_cfg = get_irq_config(sscape->type, mpu_irq[dev]); if (mpu_irq_cfg == INVALID_IRQ) { snd_printk(KERN_ERR "sscape: Invalid IRQ %d\n", mpu_irq[dev]); - return -ENXIO; + err = -ENXIO; + goto _release_dma; } /* -- cgit v0.10.2 From 08f1ec8a594c60bf3856e3c45b6d15fd691d90bb Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Tue, 10 Apr 2012 17:21:35 +1000 Subject: powerpc: Fix page fault with lockdep regression commit a546498f3bf9aac311c66f965186373aee2ca0b0 introduced a regression on 32-bit when irq tracing is enabled by exposing an old bug in our irq tracing code for exception entry. The code would save and restore some GPRs around the calls to the C lockdep code, however, it tries to be too smart for its own good and restores some of the GPRs from the exception frame (as saved there on exception entry). However, for page faults, we do replace those GPRs with arguments to do_page_fault before we call transfer_to_handler and so restoring from the exception frame is plain wrong in this case. This was fine as long as we didn't touch the interrupt state when taking page fault, but when I started doing it, it would trigger the lockdep calls and the bug. This fixes it by cleaning up that code a bit. It did create a small stack frame for the sake of backtraces, so let's make it a bit bigger and use it to save and restore the stuff we care about. Signed-off-by: Benjamin Herrenschmidt diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S index 3e57a00..ba3aeb4 100644 --- a/arch/powerpc/kernel/entry_32.S +++ b/arch/powerpc/kernel/entry_32.S @@ -206,40 +206,43 @@ reenable_mmu: /* re-enable mmu so we can */ andi. r10,r10,MSR_EE /* Did EE change? */ beq 1f - /* Save handler and return address into the 2 unused words - * of the STACK_FRAME_OVERHEAD (sneak sneak sneak). Everything - * else can be recovered from the pt_regs except r3 which for - * normal interrupts has been set to pt_regs and for syscalls - * is an argument, so we temporarily use ORIG_GPR3 to save it - */ - stw r9,8(r1) - stw r11,12(r1) - stw r3,ORIG_GPR3(r1) /* * The trace_hardirqs_off will use CALLER_ADDR0 and CALLER_ADDR1. * If from user mode there is only one stack frame on the stack, and * accessing CALLER_ADDR1 will cause oops. So we need create a dummy * stack frame to make trace_hardirqs_off happy. + * + * This is handy because we also need to save a bunch of GPRs, + * r3 can be different from GPR3(r1) at this point, r9 and r11 + * contains the old MSR and handler address respectively, + * r4 & r5 can contain page fault arguments that need to be passed + * along as well. r12, CCR, CTR, XER etc... are left clobbered as + * they aren't useful past this point (aren't syscall arguments), + * the rest is restored from the exception frame. */ + stwu r1,-32(r1) + stw r9,8(r1) + stw r11,12(r1) + stw r3,16(r1) + stw r4,20(r1) + stw r5,24(r1) andi. r12,r12,MSR_PR - beq 11f - stwu r1,-16(r1) + b 11f bl trace_hardirqs_off - addi r1,r1,16 b 12f - 11: bl trace_hardirqs_off 12: + lwz r5,24(r1) + lwz r4,20(r1) + lwz r3,16(r1) + lwz r11,12(r1) + lwz r9,8(r1) + addi r1,r1,32 lwz r0,GPR0(r1) - lwz r3,ORIG_GPR3(r1) - lwz r4,GPR4(r1) - lwz r5,GPR5(r1) lwz r6,GPR6(r1) lwz r7,GPR7(r1) lwz r8,GPR8(r1) - lwz r9,8(r1) - lwz r11,12(r1) 1: mtctr r11 mtlr r9 bctr /* jump to handler */ -- cgit v0.10.2 From a67ada7a7239b78250c1594b0e02ca68eae848dc Mon Sep 17 00:00:00 2001 From: JJ Ding Date: Tue, 10 Apr 2012 00:29:12 -0700 Subject: Input: elantech - reset touchpad before configuring it Acer VH40 has a Fn key toggling the touchpad on and off, but it's implemented in system firmware, and the EC chip has to receive reset command to activate this function. Also when this machine wakes up after resume, psmouse_reset is necessary to bring the touchpad back on. Signed-off-by: JJ Ding Reviewed-by: Chase Douglas Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index d2c0db1..21c68a8 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -1245,6 +1245,8 @@ static void elantech_disconnect(struct psmouse *psmouse) */ static int elantech_reconnect(struct psmouse *psmouse) { + psmouse_reset(psmouse); + if (elantech_detect(psmouse, 0)) return -1; @@ -1324,6 +1326,8 @@ int elantech_init(struct psmouse *psmouse) if (!etd) return -ENOMEM; + psmouse_reset(psmouse); + etd->parity[0] = 1; for (i = 1; i < 256; i++) etd->parity[i] = etd->parity[i & (i - 1)] ^ 1; -- cgit v0.10.2 From e3dde4fba94e0ba5e1fd79ea9e5389eea1f0cfec Mon Sep 17 00:00:00 2001 From: JJ Ding Date: Tue, 10 Apr 2012 00:30:12 -0700 Subject: Input: elantech - v4 is a clickpad, with only one button Add pointer and buttonpad properties for v4 hardware. Also, Jachiet reported that on Asus UX31, right button has no effect. It turns out v4 has only one button, the right-button effect is implemented with software when Windows driver is installed, or in firmware when touchpad is in relative mode. So remove BTN_RIGHT while at it. Reported-by: Jachiet Louis Signed-off-by: JJ Ding Reviewed-by: Chase Douglas Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index 21c68a8..4790110 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -486,7 +486,6 @@ static void elantech_input_sync_v4(struct psmouse *psmouse) unsigned char *packet = psmouse->packet; input_report_key(dev, BTN_LEFT, packet[0] & 0x01); - input_report_key(dev, BTN_RIGHT, packet[0] & 0x02); input_mt_report_pointer_emulation(dev, true); input_sync(dev); } @@ -967,6 +966,7 @@ static int elantech_set_input_params(struct psmouse *psmouse) if (elantech_set_range(psmouse, &x_min, &y_min, &x_max, &y_max, &width)) return -1; + __set_bit(INPUT_PROP_POINTER, dev->propbit); __set_bit(EV_KEY, dev->evbit); __set_bit(EV_ABS, dev->evbit); __clear_bit(EV_REL, dev->evbit); @@ -1017,7 +1017,9 @@ static int elantech_set_input_params(struct psmouse *psmouse) */ psmouse_warn(psmouse, "couldn't query resolution data.\n"); } - + /* v4 is clickpad, with only one button. */ + __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit); + __clear_bit(BTN_RIGHT, dev->keybit); __set_bit(BTN_TOOL_QUADTAP, dev->keybit); /* For X to recognize me as touchpad. */ input_set_abs_params(dev, ABS_X, x_min, x_max, 0, 0); -- cgit v0.10.2 From fb16395ee65d22882a0af30850cbf5c9b9a2962c Mon Sep 17 00:00:00 2001 From: JJ Ding Date: Tue, 10 Apr 2012 00:25:01 -0700 Subject: Input: trackpoint - use psmouse_fmt() for messages Use psmouse_*() macros introduced in commit b5d21704361ee. Signed-off-by: JJ Ding Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/mouse/trackpoint.c b/drivers/input/mouse/trackpoint.c index 22b2180..f310249 100644 --- a/drivers/input/mouse/trackpoint.c +++ b/drivers/input/mouse/trackpoint.c @@ -304,7 +304,7 @@ int trackpoint_detect(struct psmouse *psmouse, bool set_properties) return 0; if (trackpoint_read(&psmouse->ps2dev, TP_EXT_BTN, &button_info)) { - printk(KERN_WARNING "trackpoint.c: failed to get extended button data\n"); + psmouse_warn(psmouse, "failed to get extended button data\n"); button_info = 0; } @@ -326,16 +326,18 @@ int trackpoint_detect(struct psmouse *psmouse, bool set_properties) error = sysfs_create_group(&ps2dev->serio->dev.kobj, &trackpoint_attr_group); if (error) { - printk(KERN_ERR - "trackpoint.c: failed to create sysfs attributes, error: %d\n", - error); + psmouse_err(psmouse, + "failed to create sysfs attributes, error: %d\n", + error); kfree(psmouse->private); psmouse->private = NULL; return -1; } - printk(KERN_INFO "IBM TrackPoint firmware: 0x%02x, buttons: %d/%d\n", - firmware_id, (button_info & 0xf0) >> 4, button_info & 0x0f); + psmouse_info(psmouse, + "IBM TrackPoint firmware: 0x%02x, buttons: %d/%d\n", + firmware_id, + (button_info & 0xf0) >> 4, button_info & 0x0f); return 0; } -- cgit v0.10.2 From dff2aa7af8c96a11f75d858859f0e0c78b193d12 Mon Sep 17 00:00:00 2001 From: Kautuk Consul Date: Mon, 2 Apr 2012 18:19:49 +0100 Subject: ARM: 7368/1: fault.c: correct how the tsk->[maj|min]_flt gets incremented commit 8878a539ff19a43cf3729e7562cd528f490246ae was done by me to make the page fault handler retryable as well as interruptible. Due to this commit, there is a mistake in the way in which tsk->[maj|min]_flt counter gets incremented for VM_FAULT_ERROR: If VM_FAULT_ERROR is returned in the fault flags by handle_mm_fault, then either maj_flt or min_flt will get incremented. This is wrong as in the case of a VM_FAULT_ERROR we need to be skip ahead to the error handling code in do_page_fault. Added a check after the call to __do_page_fault() to check for (fault & VM_FAULT_ERROR). Signed-off-by: Kautuk Consul Signed-off-by: Russell King diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c index 9055b5a..f074675 100644 --- a/arch/arm/mm/fault.c +++ b/arch/arm/mm/fault.c @@ -320,7 +320,7 @@ retry: */ perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, addr); - if (flags & FAULT_FLAG_ALLOW_RETRY) { + if (!(fault & VM_FAULT_ERROR) && flags & FAULT_FLAG_ALLOW_RETRY) { if (fault & VM_FAULT_MAJOR) { tsk->maj_flt++; perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, -- cgit v0.10.2 From 34af657916332e89564566bc8d35e3e06cc0c236 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Thu, 5 Apr 2012 19:42:10 +0100 Subject: ARM: 7377/1: vic: re-read status register before dispatching each IRQ handler handle_IRQ may briefly cause interrupts to be re-enabled during soft IRQ processing on the exit path, leading to nested handling of VIC interrupts. Since the current code does not re-read the VIC_IRQ_STATUS register, this can lead to multiple invocations of the same interrupt handler and spurious interrupts to be reported. This patch changes the VIC interrupt dispatching code to re-read the status register each time, avoiding duplicate invocations of the same handler. Acked-and-Tested-by: H Hartley Sweeten Reviewed-by: Jamie Iles Signed-off-by: Will Deacon Signed-off-by: Russell King diff --git a/arch/arm/common/vic.c b/arch/arm/common/vic.c index 7a66311..7e288f9 100644 --- a/arch/arm/common/vic.c +++ b/arch/arm/common/vic.c @@ -427,19 +427,18 @@ int __init vic_of_init(struct device_node *node, struct device_node *parent) /* * Handle each interrupt in a single VIC. Returns non-zero if we've - * handled at least one interrupt. This does a single read of the - * status register and handles all interrupts in order from LSB first. + * handled at least one interrupt. This reads the status register + * before handling each interrupt, which is necessary given that + * handle_IRQ may briefly re-enable interrupts for soft IRQ handling. */ static int handle_one_vic(struct vic_device *vic, struct pt_regs *regs) { u32 stat, irq; int handled = 0; - stat = readl_relaxed(vic->base + VIC_IRQ_STATUS); - while (stat) { + while ((stat = readl_relaxed(vic->base + VIC_IRQ_STATUS))) { irq = ffs(stat) - 1; handle_IRQ(irq_find_mapping(vic->domain, irq), regs); - stat &= ~(1 << irq); handled = 1; } -- cgit v0.10.2 From 9886f444129171569461d8c39983e16f4871e3b4 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 10 Apr 2012 10:50:55 +0200 Subject: itimer: Use printk_once instead of WARN_ONCE David pointed out, that WARN_ONCE() to report usage of an deprecated misfeature make folks unhappy. Use printk_once() instead. Andrew told me to stop grumbling and to remove the silly typecast while touching the file. Reported-by: David Rientjes Cc: Andrew Morton Signed-off-by: Thomas Gleixner diff --git a/kernel/itimer.c b/kernel/itimer.c index c70369a..8d262b4 100644 --- a/kernel/itimer.c +++ b/kernel/itimer.c @@ -285,9 +285,10 @@ SYSCALL_DEFINE3(setitimer, int, which, struct itimerval __user *, value, if(copy_from_user(&set_buffer, value, sizeof(set_buffer))) return -EFAULT; } else { - memset((char *) &set_buffer, 0, sizeof(set_buffer)); - WARN_ONCE(1, "setitimer: new_value pointer is NULL." - " Misfeature support will be removed\n"); + memset(&set_buffer, 0, sizeof(set_buffer)); + printk_once(KERN_WARNING "%s calls setitimer() with new_value NULL pointer." + " Misfeature support will be removed\n", + current->comm); } error = do_setitimer(which, &set_buffer, ovalue ? &get_buffer : NULL); -- cgit v0.10.2 From 4de833c337509916b7931982734d858191cf0700 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 5 Apr 2012 12:58:22 -0600 Subject: drm/radeon: replace udelay with mdelay for long timeouts Some architectures require that delays longer than a few miliseconds are called through mdelay. This was triggered on ARM randconfig builds. Signed-off-by: Arnd Bergmann Signed-off-by: Mathieu Poirier Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index 81801c1..fe33d35 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -2553,7 +2553,7 @@ static void r100_pll_errata_after_data(struct radeon_device *rdev) * or the chip could hang on a subsequent access */ if (rdev->pll_errata & CHIP_ERRATA_PLL_DELAY) { - udelay(5000); + mdelay(5); } /* This function is required to workaround a hardware bug in some (all?) diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 391bd26..de71243 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -2839,7 +2839,7 @@ void r600_rlc_stop(struct radeon_device *rdev) /* r7xx asics need to soft reset RLC before halting */ WREG32(SRBM_SOFT_RESET, SOFT_RESET_RLC); RREG32(SRBM_SOFT_RESET); - udelay(15000); + mdelay(15); WREG32(SRBM_SOFT_RESET, 0); RREG32(SRBM_SOFT_RESET); } diff --git a/drivers/gpu/drm/radeon/r600_cp.c b/drivers/gpu/drm/radeon/r600_cp.c index 84c5462..75ed17c 100644 --- a/drivers/gpu/drm/radeon/r600_cp.c +++ b/drivers/gpu/drm/radeon/r600_cp.c @@ -407,7 +407,7 @@ static void r600_cp_load_microcode(drm_radeon_private_t *dev_priv) RADEON_WRITE(R600_GRBM_SOFT_RESET, R600_SOFT_RESET_CP); RADEON_READ(R600_GRBM_SOFT_RESET); - DRM_UDELAY(15000); + mdelay(15); RADEON_WRITE(R600_GRBM_SOFT_RESET, 0); fw_data = (const __be32 *)dev_priv->me_fw->data; @@ -500,7 +500,7 @@ static void r700_cp_load_microcode(drm_radeon_private_t *dev_priv) RADEON_WRITE(R600_GRBM_SOFT_RESET, R600_SOFT_RESET_CP); RADEON_READ(R600_GRBM_SOFT_RESET); - DRM_UDELAY(15000); + mdelay(15); RADEON_WRITE(R600_GRBM_SOFT_RESET, 0); fw_data = (const __be32 *)dev_priv->pfp_fw->data; @@ -1797,7 +1797,7 @@ static void r600_cp_init_ring_buffer(struct drm_device *dev, RADEON_WRITE(R600_GRBM_SOFT_RESET, R600_SOFT_RESET_CP); RADEON_READ(R600_GRBM_SOFT_RESET); - DRM_UDELAY(15000); + mdelay(15); RADEON_WRITE(R600_GRBM_SOFT_RESET, 0); diff --git a/drivers/gpu/drm/radeon/radeon_clocks.c b/drivers/gpu/drm/radeon/radeon_clocks.c index 6ae0c75..9c6b29a 100644 --- a/drivers/gpu/drm/radeon/radeon_clocks.c +++ b/drivers/gpu/drm/radeon/radeon_clocks.c @@ -633,7 +633,7 @@ void radeon_legacy_set_clock_gating(struct radeon_device *rdev, int enable) tmp &= ~(R300_SCLK_FORCE_VAP); tmp |= RADEON_SCLK_FORCE_CP; WREG32_PLL(RADEON_SCLK_CNTL, tmp); - udelay(15000); + mdelay(15); tmp = RREG32_PLL(R300_SCLK_CNTL2); tmp &= ~(R300_SCLK_FORCE_TCL | @@ -651,12 +651,12 @@ void radeon_legacy_set_clock_gating(struct radeon_device *rdev, int enable) tmp |= (RADEON_ENGIN_DYNCLK_MODE | (0x01 << RADEON_ACTIVE_HILO_LAT_SHIFT)); WREG32_PLL(RADEON_CLK_PWRMGT_CNTL, tmp); - udelay(15000); + mdelay(15); tmp = RREG32_PLL(RADEON_CLK_PIN_CNTL); tmp |= RADEON_SCLK_DYN_START_CNTL; WREG32_PLL(RADEON_CLK_PIN_CNTL, tmp); - udelay(15000); + mdelay(15); /* When DRI is enabled, setting DYN_STOP_LAT to zero can cause some R200 to lockup randomly, leave them as set by BIOS. @@ -696,7 +696,7 @@ void radeon_legacy_set_clock_gating(struct radeon_device *rdev, int enable) tmp |= RADEON_SCLK_MORE_FORCEON; } WREG32_PLL(RADEON_SCLK_MORE_CNTL, tmp); - udelay(15000); + mdelay(15); } /* RV200::A11 A12, RV250::A11 A12 */ @@ -709,7 +709,7 @@ void radeon_legacy_set_clock_gating(struct radeon_device *rdev, int enable) tmp |= RADEON_TCL_BYPASS_DISABLE; WREG32_PLL(RADEON_PLL_PWRMGT_CNTL, tmp); } - udelay(15000); + mdelay(15); /*enable dynamic mode for display clocks (PIXCLK and PIX2CLK) */ tmp = RREG32_PLL(RADEON_PIXCLKS_CNTL); @@ -722,14 +722,14 @@ void radeon_legacy_set_clock_gating(struct radeon_device *rdev, int enable) RADEON_PIXCLK_TMDS_ALWAYS_ONb); WREG32_PLL(RADEON_PIXCLKS_CNTL, tmp); - udelay(15000); + mdelay(15); tmp = RREG32_PLL(RADEON_VCLK_ECP_CNTL); tmp |= (RADEON_PIXCLK_ALWAYS_ONb | RADEON_PIXCLK_DAC_ALWAYS_ONb); WREG32_PLL(RADEON_VCLK_ECP_CNTL, tmp); - udelay(15000); + mdelay(15); } } else { /* Turn everything OFF (ForceON to everything) */ @@ -861,7 +861,7 @@ void radeon_legacy_set_clock_gating(struct radeon_device *rdev, int enable) } WREG32_PLL(RADEON_SCLK_CNTL, tmp); - udelay(16000); + mdelay(16); if ((rdev->family == CHIP_R300) || (rdev->family == CHIP_R350)) { @@ -870,7 +870,7 @@ void radeon_legacy_set_clock_gating(struct radeon_device *rdev, int enable) R300_SCLK_FORCE_GA | R300_SCLK_FORCE_CBA); WREG32_PLL(R300_SCLK_CNTL2, tmp); - udelay(16000); + mdelay(16); } if (rdev->flags & RADEON_IS_IGP) { @@ -878,7 +878,7 @@ void radeon_legacy_set_clock_gating(struct radeon_device *rdev, int enable) tmp &= ~(RADEON_FORCEON_MCLKA | RADEON_FORCEON_YCLKA); WREG32_PLL(RADEON_MCLK_CNTL, tmp); - udelay(16000); + mdelay(16); } if ((rdev->family == CHIP_RV200) || @@ -887,7 +887,7 @@ void radeon_legacy_set_clock_gating(struct radeon_device *rdev, int enable) tmp = RREG32_PLL(RADEON_SCLK_MORE_CNTL); tmp |= RADEON_SCLK_MORE_FORCEON; WREG32_PLL(RADEON_SCLK_MORE_CNTL, tmp); - udelay(16000); + mdelay(16); } tmp = RREG32_PLL(RADEON_PIXCLKS_CNTL); @@ -900,7 +900,7 @@ void radeon_legacy_set_clock_gating(struct radeon_device *rdev, int enable) RADEON_PIXCLK_TMDS_ALWAYS_ONb); WREG32_PLL(RADEON_PIXCLKS_CNTL, tmp); - udelay(16000); + mdelay(16); tmp = RREG32_PLL(RADEON_VCLK_ECP_CNTL); tmp &= ~(RADEON_PIXCLK_ALWAYS_ONb | diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c index 81fc100..2cad9fd 100644 --- a/drivers/gpu/drm/radeon/radeon_combios.c +++ b/drivers/gpu/drm/radeon/radeon_combios.c @@ -2845,7 +2845,7 @@ bool radeon_combios_external_tmds_setup(struct drm_encoder *encoder) case 4: val = RBIOS16(index); index += 2; - udelay(val * 1000); + mdelay(val); break; case 6: slave_addr = id & 0xff; @@ -3044,7 +3044,7 @@ static void combios_parse_pll_table(struct drm_device *dev, uint16_t offset) udelay(150); break; case 2: - udelay(1000); + mdelay(1); break; case 3: while (tmp--) { @@ -3075,13 +3075,13 @@ static void combios_parse_pll_table(struct drm_device *dev, uint16_t offset) /*mclk_cntl |= 0x00001111;*//* ??? */ WREG32_PLL(RADEON_MCLK_CNTL, mclk_cntl); - udelay(10000); + mdelay(10); #endif WREG32_PLL (RADEON_CLK_PWRMGT_CNTL, tmp & ~RADEON_CG_NO1_DEBUG_0); - udelay(10000); + mdelay(10); } break; default: diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c index 2f46e0c..42db254 100644 --- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c @@ -88,7 +88,7 @@ static void radeon_legacy_lvds_update(struct drm_encoder *encoder, int mode) lvds_pll_cntl = RREG32(RADEON_LVDS_PLL_CNTL); lvds_pll_cntl |= RADEON_LVDS_PLL_EN; WREG32(RADEON_LVDS_PLL_CNTL, lvds_pll_cntl); - udelay(1000); + mdelay(1); lvds_pll_cntl = RREG32(RADEON_LVDS_PLL_CNTL); lvds_pll_cntl &= ~RADEON_LVDS_PLL_RESET; @@ -101,7 +101,7 @@ static void radeon_legacy_lvds_update(struct drm_encoder *encoder, int mode) (backlight_level << RADEON_LVDS_BL_MOD_LEVEL_SHIFT)); if (is_mac) lvds_gen_cntl |= RADEON_LVDS_BL_MOD_EN; - udelay(panel_pwr_delay * 1000); + mdelay(panel_pwr_delay); WREG32(RADEON_LVDS_GEN_CNTL, lvds_gen_cntl); break; case DRM_MODE_DPMS_STANDBY: @@ -118,10 +118,10 @@ static void radeon_legacy_lvds_update(struct drm_encoder *encoder, int mode) WREG32(RADEON_LVDS_GEN_CNTL, lvds_gen_cntl); lvds_gen_cntl &= ~(RADEON_LVDS_ON | RADEON_LVDS_BLON | RADEON_LVDS_EN | RADEON_LVDS_DIGON); } - udelay(panel_pwr_delay * 1000); + mdelay(panel_pwr_delay); WREG32(RADEON_LVDS_GEN_CNTL, lvds_gen_cntl); WREG32_PLL(RADEON_PIXCLKS_CNTL, pixclks_cntl); - udelay(panel_pwr_delay * 1000); + mdelay(panel_pwr_delay); break; } @@ -656,7 +656,7 @@ static enum drm_connector_status radeon_legacy_primary_dac_detect(struct drm_enc WREG32(RADEON_DAC_MACRO_CNTL, tmp); - udelay(2000); + mdelay(2); if (RREG32(RADEON_DAC_CNTL) & RADEON_DAC_CMP_OUTPUT) found = connector_status_connected; @@ -1499,7 +1499,7 @@ static enum drm_connector_status radeon_legacy_tv_dac_detect(struct drm_encoder tmp = dac_cntl2 | RADEON_DAC2_DAC2_CLK_SEL | RADEON_DAC2_CMP_EN; WREG32(RADEON_DAC_CNTL2, tmp); - udelay(10000); + mdelay(10); if (ASIC_IS_R300(rdev)) { if (RREG32(RADEON_DAC_CNTL2) & RADEON_DAC2_CMP_OUT_B) -- cgit v0.10.2 From 6d258a4c42089229b855fd706622029decf316d6 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Thu, 15 Mar 2012 16:37:18 +0200 Subject: usb: gadget: udc-core: stop UDC on device-initiated disconnect When we want to do device-initiated disconnect, let's make sure we stop the UDC in order to e.g. allow lower power states to be achieved by turning off unnecessary clocks and/or stoping PHYs. When reconnecting, call ->udc_start() again to make sure UDC is reinitialized. Cc: stable@vger.kernel.org Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c index 56da49f..c261887 100644 --- a/drivers/usb/gadget/udc-core.c +++ b/drivers/usb/gadget/udc-core.c @@ -411,8 +411,12 @@ static ssize_t usb_udc_softconn_store(struct device *dev, struct usb_udc *udc = container_of(dev, struct usb_udc, dev); if (sysfs_streq(buf, "connect")) { + if (udc_is_newstyle(udc)) + usb_gadget_udc_start(udc->gadget, udc->driver); usb_gadget_connect(udc->gadget); } else if (sysfs_streq(buf, "disconnect")) { + if (udc_is_newstyle(udc)) + usb_gadget_udc_stop(udc->gadget, udc->driver); usb_gadget_disconnect(udc->gadget); } else { dev_err(dev, "unsupported command '%s'\n", buf); -- cgit v0.10.2 From 566ccdda07dc5898272b6fbad9c616fc44be305a Mon Sep 17 00:00:00 2001 From: Moiz Sonasath Date: Wed, 14 Mar 2012 00:44:56 -0500 Subject: usb: dwc3: ep0: Handle requests greater than wMaxPacketSize To allow ep0 out transfers of upto bounce buffer size instead of maxpacketsize, use the transfer size as multiple of ep0 maxpacket size. Cc: stable@vger.kernel.org Signed-off-by: Moiz Sonasath Signed-off-by: Partha Basak Signed-off-by: Felipe Balbi diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index 25910e2..a40d3bb 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -559,8 +559,12 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc, length = trb->size & DWC3_TRB_SIZE_MASK; if (dwc->ep0_bounced) { + unsigned transfer_size = ur->length; + unsigned maxp = ep0->endpoint.maxpacket; + + transfer_size += (maxp - (transfer_size % maxp)); transferred = min_t(u32, ur->length, - ep0->endpoint.maxpacket - length); + transfer_size - length); memcpy(ur->buf, dwc->ep0_bounce, transferred); dwc->ep0_bounced = false; } else { -- cgit v0.10.2 From cd423dd3634a5232a3019eb372b144619a61cd16 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Wed, 21 Mar 2012 11:44:00 +0200 Subject: usb: dwc3: ep0: increment "actual" on bounced ep0 case due to a HW limitation we have a bounce buffer for ep0 out transfers which are not aligned with MaxPacketSize. On such case we were not increment r->actual as we should. This patch fixes that mistake. Cc: stable@vger.kernel.org Signed-off-by: Felipe Balbi diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index a40d3bb..da43131 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -569,9 +569,10 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc, dwc->ep0_bounced = false; } else { transferred = ur->length - length; - ur->actual += transferred; } + ur->actual += transferred; + if ((epnum & 1) && ur->actual < ur->length) { /* for some reason we did not get everything out */ -- cgit v0.10.2 From 6587eb82617f7913c13e750e73e13fa9c829863c Mon Sep 17 00:00:00 2001 From: Xi Wang Date: Fri, 6 Apr 2012 17:38:24 -0400 Subject: drm/savage: fix integer overflows in savage_bci_cmdbuf() Since cmdbuf->size and cmdbuf->nbox are from userspace, a large value would overflow the allocation size, leading to out-of-bounds access. Signed-off-by: Xi Wang Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/savage/savage_state.c b/drivers/gpu/drm/savage/savage_state.c index 031aaaf..b6d8608 100644 --- a/drivers/gpu/drm/savage/savage_state.c +++ b/drivers/gpu/drm/savage/savage_state.c @@ -988,7 +988,7 @@ int savage_bci_cmdbuf(struct drm_device *dev, void *data, struct drm_file *file_ * for locking on FreeBSD. */ if (cmdbuf->size) { - kcmd_addr = kmalloc(cmdbuf->size * 8, GFP_KERNEL); + kcmd_addr = kmalloc_array(cmdbuf->size, 8, GFP_KERNEL); if (kcmd_addr == NULL) return -ENOMEM; @@ -1015,8 +1015,8 @@ int savage_bci_cmdbuf(struct drm_device *dev, void *data, struct drm_file *file_ cmdbuf->vb_addr = kvb_addr; } if (cmdbuf->nbox) { - kbox_addr = kmalloc(cmdbuf->nbox * sizeof(struct drm_clip_rect), - GFP_KERNEL); + kbox_addr = kmalloc_array(cmdbuf->nbox, sizeof(struct drm_clip_rect), + GFP_KERNEL); if (kbox_addr == NULL) { ret = -ENOMEM; goto done; -- cgit v0.10.2 From afceb9319f21b18ee3bc15ee9a5f92e18ef8a8c9 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 3 Apr 2012 17:05:41 -0400 Subject: drm/radeon/kms: fix DVO setup on some r4xx chips Some r4xx chips have the wrong frev in the DVOEncoderControl table. It should always be 1 on r4xx. Fixes modesetting on DVO on r4xx chips with the bad frev. Reported by twied on #radeon. Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c index e607c4d..2d39f99 100644 --- a/drivers/gpu/drm/radeon/atombios_encoders.c +++ b/drivers/gpu/drm/radeon/atombios_encoders.c @@ -230,6 +230,10 @@ atombios_dvo_setup(struct drm_encoder *encoder, int action) if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev, &crev)) return; + /* some R4xx chips have the wrong frev */ + if (rdev->family <= CHIP_RV410) + frev = 1; + switch (frev) { case 1: switch (crev) { -- cgit v0.10.2 From d3c242e1f22f5dfed009296ee45ce896153f0b53 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Wed, 4 Apr 2012 15:48:29 -0600 Subject: regmap: allow regmap instances to be named Some devices have multiple separate register regions. Logically, one regmap would be created per region. One issue that prevents this is that each instance will attempt to create the same debugfs files. Avoid this by allowing regmaps to be named, and use the name to construct the debugfs directory name. Signed-off-by: Stephen Warren Signed-off-by: Mark Brown diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h index fcafc5b..6beef66 100644 --- a/drivers/base/regmap/internal.h +++ b/drivers/base/regmap/internal.h @@ -41,6 +41,7 @@ struct regmap { #ifdef CONFIG_DEBUG_FS struct dentry *debugfs; + const char *debugfs_name; #endif unsigned int max_register; @@ -101,7 +102,7 @@ int _regmap_write(struct regmap *map, unsigned int reg, #ifdef CONFIG_DEBUG_FS extern void regmap_debugfs_initcall(void); -extern void regmap_debugfs_init(struct regmap *map); +extern void regmap_debugfs_init(struct regmap *map, const char *name); extern void regmap_debugfs_exit(struct regmap *map); #else static inline void regmap_debugfs_initcall(void) { } diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c index 58517a5..9715e8e 100644 --- a/drivers/base/regmap/regmap-debugfs.c +++ b/drivers/base/regmap/regmap-debugfs.c @@ -248,10 +248,17 @@ static const struct file_operations regmap_access_fops = { .llseek = default_llseek, }; -void regmap_debugfs_init(struct regmap *map) +void regmap_debugfs_init(struct regmap *map, const char *name) { - map->debugfs = debugfs_create_dir(dev_name(map->dev), - regmap_debugfs_root); + if (name) { + map->debugfs_name = kasprintf(GFP_KERNEL, "%s-%s", + dev_name(map->dev), name); + name = map->debugfs_name; + } else { + name = dev_name(map->dev); + } + + map->debugfs = debugfs_create_dir(name, regmap_debugfs_root); if (!map->debugfs) { dev_warn(map->dev, "Failed to create debugfs directory\n"); return; @@ -280,6 +287,7 @@ void regmap_debugfs_init(struct regmap *map) void regmap_debugfs_exit(struct regmap *map) { debugfs_remove_recursive(map->debugfs); + kfree(map->debugfs_name); } void regmap_debugfs_initcall(void) diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 7a3f535..b1dad1f 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -289,7 +289,7 @@ struct regmap *regmap_init(struct device *dev, goto err_map; } - regmap_debugfs_init(map); + regmap_debugfs_init(map, config->name); ret = regcache_init(map, config); if (ret < 0) @@ -372,7 +372,7 @@ int regmap_reinit_cache(struct regmap *map, const struct regmap_config *config) map->precious_reg = config->precious_reg; map->cache_type = config->cache_type; - regmap_debugfs_init(map); + regmap_debugfs_init(map, config->name); map->cache_bypass = false; map->cache_only = false; diff --git a/include/linux/regmap.h b/include/linux/regmap.h index a90abb6..0a27ee8 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -46,6 +46,9 @@ struct reg_default { /** * Configuration for the register map of a device. * + * @name: Optional name of the regmap. Useful when a device has multiple + * register regions. + * * @reg_bits: Number of bits in a register address, mandatory. * @pad_bits: Number of bits of padding between register and value. * @val_bits: Number of bits in a register value, mandatory. @@ -77,6 +80,8 @@ struct reg_default { * @num_reg_defaults_raw: Number of elements in reg_defaults_raw. */ struct regmap_config { + const char *name; + int reg_bits; int pad_bits; int val_bits; -- cgit v0.10.2 From abec95adefaeb2229cb28de65f3d32cd149b9dd9 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Thu, 5 Apr 2012 23:09:20 -0600 Subject: regmap: fix compilation when !CONFIG_DEBUG_FS Commit 79c64d5 "regmap: allow regmap instances to be named" changed the prototype of regmap_debugfs_init, but didn't update the dummy inline used when !CONFIG_DEBUGFS. Fix this. Signed-off-by: Stephen Warren Signed-off-by: Mark Brown diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h index 6beef66..8461ca7 100644 --- a/drivers/base/regmap/internal.h +++ b/drivers/base/regmap/internal.h @@ -106,7 +106,7 @@ extern void regmap_debugfs_init(struct regmap *map, const char *name); extern void regmap_debugfs_exit(struct regmap *map); #else static inline void regmap_debugfs_initcall(void) { } -static inline void regmap_debugfs_init(struct regmap *map) { } +static inline void regmap_debugfs_init(struct regmap *map, const char *name) { } static inline void regmap_debugfs_exit(struct regmap *map) { } #endif -- cgit v0.10.2 From fa4da365bc7772c2cd6d5405bdf151612455f957 Mon Sep 17 00:00:00 2001 From: Suresh Siddha Date: Mon, 9 Apr 2012 15:41:44 -0700 Subject: clockevents: tTack broadcast device mode change in tick_broadcast_switch_to_oneshot() In the commit 77b0d60c5adf39c74039e2142a1d3cd1e4d53799, "clockevents: Leave the broadcast device in shutdown mode when not needed", we were bailing out too quickly in tick_broadcast_switch_to_oneshot(), with out tracking the broadcast device mode change to 'TICKDEV_MODE_ONESHOT'. This breaks the platforms which need broadcast device oneshot services during deep idle states. tick_broadcast_oneshot_control() thinks that it is in periodic mode and fails to take proper decisions based on the CLOCK_EVT_NOTIFY_BROADCAST_[ENTER, EXIT] notifications during deep idle entry/exit. Fix this by tracking the broadcast device mode as 'TICKDEV_MODE_ONESHOT', before leaving the broadcast HW device in shutdown mode if there are no active requests for the moment. Reported-and-tested-by: Santosh Shilimkar Signed-off-by: Suresh Siddha Cc: johnstul@us.ibm.com Link: http://lkml.kernel.org/r/1334011304.12400.81.camel@sbsiddha-desk.sc.intel.com Signed-off-by: Thomas Gleixner diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c index e883f57..bf57abd 100644 --- a/kernel/time/tick-broadcast.c +++ b/kernel/time/tick-broadcast.c @@ -575,10 +575,12 @@ void tick_broadcast_switch_to_oneshot(void) unsigned long flags; raw_spin_lock_irqsave(&tick_broadcast_lock, flags); + + tick_broadcast_device.mode = TICKDEV_MODE_ONESHOT; + if (cpumask_empty(tick_get_broadcast_mask())) goto end; - tick_broadcast_device.mode = TICKDEV_MODE_ONESHOT; bc = tick_broadcast_device.evtdev; if (bc) tick_broadcast_setup_oneshot(bc); -- cgit v0.10.2 From f01ee60fffa4dc6c77122121233a793f7f696e67 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Mon, 9 Apr 2012 13:40:24 -0600 Subject: regmap: implement register striding regmap_config.reg_stride is introduced. All extant register addresses are a multiple of this value. Users of serial-oriented regmap busses will typically set this to 1. Users of the MMIO regmap bus will typically set this based on the value size of their registers, in bytes, so 4 for a 32-bit register. Throughout the regmap code, actual register addresses are used. Wherever the register address is used to index some array of values, the address is divided by the stride to determine the index, or vice-versa. Error- checking is added to all entry-points for register address data to ensure that register addresses actually satisfy the specified stride. The MMIO bus ensures that the specified stride is large enough for the register size. Signed-off-by: Stephen Warren Signed-off-by: Mark Brown diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h index 99b28ff..d92e9b1 100644 --- a/drivers/base/regmap/internal.h +++ b/drivers/base/regmap/internal.h @@ -62,6 +62,7 @@ struct regmap { /* number of bits to (left) shift the reg value when formatting*/ int reg_shift; + int reg_stride; /* regcache specific members */ const struct regcache_ops *cache_ops; diff --git a/drivers/base/regmap/regcache-lzo.c b/drivers/base/regmap/regcache-lzo.c index 483b06d..afd6aa9 100644 --- a/drivers/base/regmap/regcache-lzo.c +++ b/drivers/base/regmap/regcache-lzo.c @@ -108,7 +108,7 @@ static int regcache_lzo_decompress_cache_block(struct regmap *map, static inline int regcache_lzo_get_blkindex(struct regmap *map, unsigned int reg) { - return (reg * map->cache_word_size) / + return ((reg / map->reg_stride) * map->cache_word_size) / DIV_ROUND_UP(map->cache_size_raw, regcache_lzo_block_count(map)); } @@ -116,9 +116,10 @@ static inline int regcache_lzo_get_blkindex(struct regmap *map, static inline int regcache_lzo_get_blkpos(struct regmap *map, unsigned int reg) { - return reg % (DIV_ROUND_UP(map->cache_size_raw, - regcache_lzo_block_count(map)) / - map->cache_word_size); + return (reg / map->reg_stride) % + (DIV_ROUND_UP(map->cache_size_raw, + regcache_lzo_block_count(map)) / + map->cache_word_size); } static inline int regcache_lzo_get_blksize(struct regmap *map) @@ -322,7 +323,7 @@ static int regcache_lzo_write(struct regmap *map, } /* set the bit so we know we have to sync this register */ - set_bit(reg, lzo_block->sync_bmp); + set_bit(reg / map->reg_stride, lzo_block->sync_bmp); kfree(tmp_dst); kfree(lzo_block->src); return 0; diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c index e49e71f..e6732cf 100644 --- a/drivers/base/regmap/regcache-rbtree.c +++ b/drivers/base/regmap/regcache-rbtree.c @@ -39,11 +39,12 @@ struct regcache_rbtree_ctx { }; static inline void regcache_rbtree_get_base_top_reg( + struct regmap *map, struct regcache_rbtree_node *rbnode, unsigned int *base, unsigned int *top) { *base = rbnode->base_reg; - *top = rbnode->base_reg + rbnode->blklen - 1; + *top = rbnode->base_reg + ((rbnode->blklen - 1) * map->reg_stride); } static unsigned int regcache_rbtree_get_register( @@ -70,7 +71,8 @@ static struct regcache_rbtree_node *regcache_rbtree_lookup(struct regmap *map, rbnode = rbtree_ctx->cached_rbnode; if (rbnode) { - regcache_rbtree_get_base_top_reg(rbnode, &base_reg, &top_reg); + regcache_rbtree_get_base_top_reg(map, rbnode, &base_reg, + &top_reg); if (reg >= base_reg && reg <= top_reg) return rbnode; } @@ -78,7 +80,8 @@ static struct regcache_rbtree_node *regcache_rbtree_lookup(struct regmap *map, node = rbtree_ctx->root.rb_node; while (node) { rbnode = container_of(node, struct regcache_rbtree_node, node); - regcache_rbtree_get_base_top_reg(rbnode, &base_reg, &top_reg); + regcache_rbtree_get_base_top_reg(map, rbnode, &base_reg, + &top_reg); if (reg >= base_reg && reg <= top_reg) { rbtree_ctx->cached_rbnode = rbnode; return rbnode; @@ -92,7 +95,7 @@ static struct regcache_rbtree_node *regcache_rbtree_lookup(struct regmap *map, return NULL; } -static int regcache_rbtree_insert(struct rb_root *root, +static int regcache_rbtree_insert(struct regmap *map, struct rb_root *root, struct regcache_rbtree_node *rbnode) { struct rb_node **new, *parent; @@ -106,7 +109,7 @@ static int regcache_rbtree_insert(struct rb_root *root, rbnode_tmp = container_of(*new, struct regcache_rbtree_node, node); /* base and top registers of the current rbnode */ - regcache_rbtree_get_base_top_reg(rbnode_tmp, &base_reg_tmp, + regcache_rbtree_get_base_top_reg(map, rbnode_tmp, &base_reg_tmp, &top_reg_tmp); /* base register of the rbnode to be added */ base_reg = rbnode->base_reg; @@ -138,7 +141,7 @@ static int rbtree_show(struct seq_file *s, void *ignored) unsigned int base, top; int nodes = 0; int registers = 0; - int average; + int this_registers, average; map->lock(map); @@ -146,11 +149,12 @@ static int rbtree_show(struct seq_file *s, void *ignored) node = rb_next(node)) { n = container_of(node, struct regcache_rbtree_node, node); - regcache_rbtree_get_base_top_reg(n, &base, &top); - seq_printf(s, "%x-%x (%d)\n", base, top, top - base + 1); + regcache_rbtree_get_base_top_reg(map, n, &base, &top); + this_registers = ((top - base) / map->reg_stride) + 1; + seq_printf(s, "%x-%x (%d)\n", base, top, this_registers); nodes++; - registers += top - base + 1; + registers += this_registers; } if (nodes) @@ -255,7 +259,7 @@ static int regcache_rbtree_read(struct regmap *map, rbnode = regcache_rbtree_lookup(map, reg); if (rbnode) { - reg_tmp = reg - rbnode->base_reg; + reg_tmp = (reg - rbnode->base_reg) / map->reg_stride; *value = regcache_rbtree_get_register(rbnode, reg_tmp, map->cache_word_size); } else { @@ -310,7 +314,7 @@ static int regcache_rbtree_write(struct regmap *map, unsigned int reg, */ rbnode = regcache_rbtree_lookup(map, reg); if (rbnode) { - reg_tmp = reg - rbnode->base_reg; + reg_tmp = (reg - rbnode->base_reg) / map->reg_stride; val = regcache_rbtree_get_register(rbnode, reg_tmp, map->cache_word_size); if (val == value) @@ -321,13 +325,15 @@ static int regcache_rbtree_write(struct regmap *map, unsigned int reg, /* look for an adjacent register to the one we are about to add */ for (node = rb_first(&rbtree_ctx->root); node; node = rb_next(node)) { - rbnode_tmp = rb_entry(node, struct regcache_rbtree_node, node); + rbnode_tmp = rb_entry(node, struct regcache_rbtree_node, + node); for (i = 0; i < rbnode_tmp->blklen; i++) { - reg_tmp = rbnode_tmp->base_reg + i; - if (abs(reg_tmp - reg) != 1) + reg_tmp = rbnode_tmp->base_reg + + (i * map->reg_stride); + if (abs(reg_tmp - reg) != map->reg_stride) continue; /* decide where in the block to place our register */ - if (reg_tmp + 1 == reg) + if (reg_tmp + map->reg_stride == reg) pos = i + 1; else pos = i; @@ -357,7 +363,7 @@ static int regcache_rbtree_write(struct regmap *map, unsigned int reg, return -ENOMEM; } regcache_rbtree_set_register(rbnode, 0, value, map->cache_word_size); - regcache_rbtree_insert(&rbtree_ctx->root, rbnode); + regcache_rbtree_insert(map, &rbtree_ctx->root, rbnode); rbtree_ctx->cached_rbnode = rbnode; } @@ -397,7 +403,7 @@ static int regcache_rbtree_sync(struct regmap *map, unsigned int min, end = rbnode->blklen; for (i = base; i < end; i++) { - regtmp = rbnode->base_reg + i; + regtmp = rbnode->base_reg + (i * map->reg_stride); val = regcache_rbtree_get_register(rbnode, i, map->cache_word_size); diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c index d4368e8..835883b 100644 --- a/drivers/base/regmap/regcache.c +++ b/drivers/base/regmap/regcache.c @@ -59,7 +59,7 @@ static int regcache_hw_init(struct regmap *map) for (count = 0, i = 0; i < map->num_reg_defaults_raw; i++) { val = regcache_get_val(map->reg_defaults_raw, i, map->cache_word_size); - if (regmap_volatile(map, i)) + if (regmap_volatile(map, i * map->reg_stride)) continue; count++; } @@ -76,9 +76,9 @@ static int regcache_hw_init(struct regmap *map) for (i = 0, j = 0; i < map->num_reg_defaults_raw; i++) { val = regcache_get_val(map->reg_defaults_raw, i, map->cache_word_size); - if (regmap_volatile(map, i)) + if (regmap_volatile(map, i * map->reg_stride)) continue; - map->reg_defaults[j].reg = i; + map->reg_defaults[j].reg = i * map->reg_stride; map->reg_defaults[j].def = val; j++; } @@ -98,6 +98,10 @@ int regcache_init(struct regmap *map, const struct regmap_config *config) int i; void *tmp_buf; + for (i = 0; i < config->num_reg_defaults; i++) + if (config->reg_defaults[i].reg % map->reg_stride) + return -EINVAL; + if (map->cache_type == REGCACHE_NONE) { map->cache_bypass = true; return 0; @@ -278,6 +282,10 @@ int regcache_sync(struct regmap *map) /* Apply any patch first */ map->cache_bypass = 1; for (i = 0; i < map->patch_regs; i++) { + if (map->patch[i].reg % map->reg_stride) { + ret = -EINVAL; + goto out; + } ret = _regmap_write(map, map->patch[i].reg, map->patch[i].def); if (ret != 0) { dev_err(map->dev, "Failed to write %x = %x: %d\n", diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c index df97c93..bb1ff17 100644 --- a/drivers/base/regmap/regmap-debugfs.c +++ b/drivers/base/regmap/regmap-debugfs.c @@ -80,7 +80,7 @@ static ssize_t regmap_map_read_file(struct file *file, char __user *user_buf, val_len = 2 * map->format.val_bytes; tot_len = reg_len + val_len + 3; /* : \n */ - for (i = 0; i < map->max_register + 1; i++) { + for (i = 0; i <= map->max_register; i += map->reg_stride) { if (!regmap_readable(map, i)) continue; @@ -197,7 +197,7 @@ static ssize_t regmap_access_read_file(struct file *file, reg_len = regmap_calc_reg_len(map->max_register, buf, count); tot_len = reg_len + 10; /* ': R W V P\n' */ - for (i = 0; i < map->max_register + 1; i++) { + for (i = 0; i <= map->max_register; i += map->reg_stride) { /* Ignore registers which are neither readable nor writable */ if (!regmap_readable(map, i) && !regmap_writeable(map, i)) continue; diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c index 1befaa7..56b8136 100644 --- a/drivers/base/regmap/regmap-irq.c +++ b/drivers/base/regmap/regmap-irq.c @@ -58,11 +58,12 @@ static void regmap_irq_sync_unlock(struct irq_data *data) * suppress pointless writes. */ for (i = 0; i < d->chip->num_regs; i++) { - ret = regmap_update_bits(d->map, d->chip->mask_base + i, + ret = regmap_update_bits(d->map, d->chip->mask_base + + (i * map->map->reg_stride), d->mask_buf_def[i], d->mask_buf[i]); if (ret != 0) dev_err(d->map->dev, "Failed to sync masks in %x\n", - d->chip->mask_base + i); + d->chip->mask_base + (i * map->reg_stride)); } mutex_unlock(&d->lock); @@ -73,7 +74,7 @@ static void regmap_irq_enable(struct irq_data *data) struct regmap_irq_chip_data *d = irq_data_get_irq_chip_data(data); const struct regmap_irq *irq_data = irq_to_regmap_irq(d, data->irq); - d->mask_buf[irq_data->reg_offset] &= ~irq_data->mask; + d->mask_buf[irq_data->reg_offset / map->reg_stride] &= ~irq_data->mask; } static void regmap_irq_disable(struct irq_data *data) @@ -81,7 +82,7 @@ static void regmap_irq_disable(struct irq_data *data) struct regmap_irq_chip_data *d = irq_data_get_irq_chip_data(data); const struct regmap_irq *irq_data = irq_to_regmap_irq(d, data->irq); - d->mask_buf[irq_data->reg_offset] |= irq_data->mask; + d->mask_buf[irq_data->reg_offset / map->reg_stride] |= irq_data->mask; } static struct irq_chip regmap_irq_chip = { @@ -136,17 +137,19 @@ static irqreturn_t regmap_irq_thread(int irq, void *d) data->status_buf[i] &= ~data->mask_buf[i]; if (data->status_buf[i] && chip->ack_base) { - ret = regmap_write(map, chip->ack_base + i, + ret = regmap_write(map, chip->ack_base + + (i * map->reg_stride), data->status_buf[i]); if (ret != 0) dev_err(map->dev, "Failed to ack 0x%x: %d\n", - chip->ack_base + i, ret); + chip->ack_base + (i * map->reg_stride), + ret); } } for (i = 0; i < chip->num_irqs; i++) { - if (data->status_buf[chip->irqs[i].reg_offset] & - chip->irqs[i].mask) { + if (data->status_buf[chip->irqs[i].reg_offset / + map->reg_stride] & chip->irqs[i].mask) { handle_nested_irq(data->irq_base + i); handled = true; } @@ -181,6 +184,14 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags, int cur_irq, i; int ret = -ENOMEM; + for (i = 0; i < chip->num_irqs; i++) { + if (chip->irqs[i].reg_offset % map->reg_stride) + return -EINVAL; + if (chip->irqs[i].reg_offset / map->reg_stride >= + chip->num_regs) + return -EINVAL; + } + irq_base = irq_alloc_descs(irq_base, 0, chip->num_irqs, 0); if (irq_base < 0) { dev_warn(map->dev, "Failed to allocate IRQs: %d\n", @@ -218,16 +229,17 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags, mutex_init(&d->lock); for (i = 0; i < chip->num_irqs; i++) - d->mask_buf_def[chip->irqs[i].reg_offset] + d->mask_buf_def[chip->irqs[i].reg_offset / map->reg_stride] |= chip->irqs[i].mask; /* Mask all the interrupts by default */ for (i = 0; i < chip->num_regs; i++) { d->mask_buf[i] = d->mask_buf_def[i]; - ret = regmap_write(map, chip->mask_base + i, d->mask_buf[i]); + ret = regmap_write(map, chip->mask_base + (i * map->reg_stride), + d->mask_buf[i]); if (ret != 0) { dev_err(map->dev, "Failed to set masks in 0x%x: %d\n", - chip->mask_base + i, ret); + chip->mask_base + (i * map->reg_stride), ret); goto err_alloc; } } diff --git a/drivers/base/regmap/regmap-mmio.c b/drivers/base/regmap/regmap-mmio.c index bdf4dc8..febd6de 100644 --- a/drivers/base/regmap/regmap-mmio.c +++ b/drivers/base/regmap/regmap-mmio.c @@ -130,6 +130,7 @@ struct regmap_mmio_context *regmap_mmio_gen_context(void __iomem *regs, const struct regmap_config *config) { struct regmap_mmio_context *ctx; + int min_stride; if (config->reg_bits != 32) return ERR_PTR(-EINVAL); @@ -139,16 +140,28 @@ struct regmap_mmio_context *regmap_mmio_gen_context(void __iomem *regs, switch (config->val_bits) { case 8: + /* The core treats 0 as 1 */ + min_stride = 0; + break; case 16: + min_stride = 2; + break; case 32: + min_stride = 4; + break; #ifdef CONFIG_64BIT case 64: + min_stride = 8; + break; #endif break; default: return ERR_PTR(-EINVAL); } + if (config->reg_stride < min_stride) + return ERR_PTR(-EINVAL); + ctx = kzalloc(GFP_KERNEL, sizeof(*ctx)); if (!ctx) return ERR_PTR(-ENOMEM); diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 40f9101..8a25006 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -243,6 +243,10 @@ struct regmap *regmap_init(struct device *dev, map->format.val_bytes = DIV_ROUND_UP(config->val_bits, 8); map->format.buf_size += map->format.pad_bytes; map->reg_shift = config->pad_bits % 8; + if (config->reg_stride) + map->reg_stride = config->reg_stride; + else + map->reg_stride = 1; map->dev = dev; map->bus = bus; map->bus_context = bus_context; @@ -469,7 +473,8 @@ static int _regmap_raw_write(struct regmap *map, unsigned int reg, /* Check for unwritable registers before we start */ if (map->writeable_reg) for (i = 0; i < val_len / map->format.val_bytes; i++) - if (!map->writeable_reg(map->dev, reg + i)) + if (!map->writeable_reg(map->dev, + reg + (i * map->reg_stride))) return -EINVAL; if (!map->cache_bypass && map->format.parse_val) { @@ -478,7 +483,8 @@ static int _regmap_raw_write(struct regmap *map, unsigned int reg, for (i = 0; i < val_len / val_bytes; i++) { memcpy(map->work_buf, val + (i * val_bytes), val_bytes); ival = map->format.parse_val(map->work_buf); - ret = regcache_write(map, reg + i, ival); + ret = regcache_write(map, reg + (i * map->reg_stride), + ival); if (ret) { dev_err(map->dev, "Error in caching of register: %u ret: %d\n", @@ -590,6 +596,9 @@ int regmap_write(struct regmap *map, unsigned int reg, unsigned int val) { int ret; + if (reg % map->reg_stride) + return -EINVAL; + map->lock(map); ret = _regmap_write(map, reg, val); @@ -623,6 +632,8 @@ int regmap_raw_write(struct regmap *map, unsigned int reg, if (val_len % map->format.val_bytes) return -EINVAL; + if (reg % map->reg_stride) + return -EINVAL; map->lock(map); @@ -657,6 +668,8 @@ int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val, if (!map->format.parse_val) return -EINVAL; + if (reg % map->reg_stride) + return -EINVAL; map->lock(map); @@ -753,6 +766,9 @@ int regmap_read(struct regmap *map, unsigned int reg, unsigned int *val) { int ret; + if (reg % map->reg_stride) + return -EINVAL; + map->lock(map); ret = _regmap_read(map, reg, val); @@ -784,6 +800,8 @@ int regmap_raw_read(struct regmap *map, unsigned int reg, void *val, if (val_len % map->format.val_bytes) return -EINVAL; + if (reg % map->reg_stride) + return -EINVAL; map->lock(map); @@ -797,7 +815,8 @@ int regmap_raw_read(struct regmap *map, unsigned int reg, void *val, * cost as we expect to hit the cache. */ for (i = 0; i < val_count; i++) { - ret = _regmap_read(map, reg + i, &v); + ret = _regmap_read(map, reg + (i * map->reg_stride), + &v); if (ret != 0) goto out; @@ -832,6 +851,8 @@ int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val, if (!map->format.parse_val) return -EINVAL; + if (reg % map->reg_stride) + return -EINVAL; if (vol || map->cache_type == REGCACHE_NONE) { ret = regmap_raw_read(map, reg, val, val_bytes * val_count); @@ -842,7 +863,8 @@ int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val, map->format.parse_val(val + i); } else { for (i = 0; i < val_count; i++) { - ret = regmap_read(map, reg + i, val + (i * val_bytes)); + ret = regmap_read(map, reg + (i * map->reg_stride), + val + (i * val_bytes)); if (ret != 0) return ret; } diff --git a/include/linux/regmap.h b/include/linux/regmap.h index 680ddd7..0258bcd 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -50,6 +50,9 @@ struct reg_default { * register regions. * * @reg_bits: Number of bits in a register address, mandatory. + * @reg_stride: The register address stride. Valid register addresses are a + * multiple of this value. If set to 0, a value of 1 will be + * used. * @pad_bits: Number of bits of padding between register and value. * @val_bits: Number of bits in a register value, mandatory. * @@ -83,6 +86,7 @@ struct regmap_config { const char *name; int reg_bits; + int reg_stride; int pad_bits; int val_bits; -- cgit v0.10.2 From 07153c6ec074257ade76a461429b567cff2b3a1e Mon Sep 17 00:00:00 2001 From: Jozsef Kadlecsik Date: Tue, 3 Apr 2012 22:02:01 +0200 Subject: netfilter: nf_ct_ipv4: packets with wrong ihl are invalid It was reported that the Linux kernel sometimes logs: klogd: [2629147.402413] kernel BUG at net / netfilter / nf_conntrack_proto_tcp.c: 447! klogd: [1072212.887368] kernel BUG at net / netfilter / nf_conntrack_proto_tcp.c: 392 ipv4_get_l4proto() in nf_conntrack_l3proto_ipv4.c and tcp_error() in nf_conntrack_proto_tcp.c should catch malformed packets, so the errors at the indicated lines - TCP options parsing - should not happen. However, tcp_error() relies on the "dataoff" offset to the TCP header, calculated by ipv4_get_l4proto(). But ipv4_get_l4proto() does not check bogus ihl values in IPv4 packets, which then can slip through tcp_error() and get caught at the TCP options parsing routines. The patch fixes ipv4_get_l4proto() by invalidating packets with bogus ihl value. The patch closes netfilter bugzilla id 771. Signed-off-by: Jozsef Kadlecsik Signed-off-by: Pablo Neira Ayuso diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c index 750b06a..cf73cc7 100644 --- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c +++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c @@ -84,6 +84,14 @@ static int ipv4_get_l4proto(const struct sk_buff *skb, unsigned int nhoff, *dataoff = nhoff + (iph->ihl << 2); *protonum = iph->protocol; + /* Check bogus IP headers */ + if (*dataoff > skb->len) { + pr_debug("nf_conntrack_ipv4: bogus IPv4 packet: " + "nhoff %u, ihl %u, skblen %u\n", + nhoff, iph->ihl << 2, skb->len); + return -NF_ACCEPT; + } + return NF_ACCEPT; } -- cgit v0.10.2 From 6ba900676bec8baaf61aa2f85b7345c0e65774d9 Mon Sep 17 00:00:00 2001 From: Gao feng Date: Sat, 7 Apr 2012 16:08:28 +0000 Subject: netfilter: nf_conntrack: fix incorrect logic in nf_conntrack_init_net in function nf_conntrack_init_net,when nf_conntrack_timeout_init falied, we should call nf_conntrack_ecache_fini to do rollback. but the current code calls nf_conntrack_timeout_fini. Signed-off-by: Gao feng Signed-off-by: Pablo Neira Ayuso diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c index 3cc4487..729f157 100644 --- a/net/netfilter/nf_conntrack_core.c +++ b/net/netfilter/nf_conntrack_core.c @@ -1592,7 +1592,7 @@ static int nf_conntrack_init_net(struct net *net) return 0; err_timeout: - nf_conntrack_timeout_fini(net); + nf_conntrack_ecache_fini(net); err_ecache: nf_conntrack_tstamp_fini(net); err_tstamp: -- cgit v0.10.2 From f19a0c2c2e6add90b7d6a1b7595abebfe2e4c37a Mon Sep 17 00:00:00 2001 From: Gleb Natapov Date: Mon, 9 Apr 2012 17:38:35 +0300 Subject: KVM: PMU emulation: GLOBAL_CTRL MSR should be enabled on reset On reset all MPU counters should be enabled in GLOBAL_CTRL MSR. Signed-off-by: Gleb Natapov Signed-off-by: Avi Kivity diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c index 173df38..2e88438 100644 --- a/arch/x86/kvm/pmu.c +++ b/arch/x86/kvm/pmu.c @@ -459,17 +459,17 @@ void kvm_pmu_cpuid_update(struct kvm_vcpu *vcpu) pmu->available_event_types = ~entry->ebx & ((1ull << bitmap_len) - 1); if (pmu->version == 1) { - pmu->global_ctrl = (1 << pmu->nr_arch_gp_counters) - 1; - return; + pmu->nr_arch_fixed_counters = 0; + } else { + pmu->nr_arch_fixed_counters = min((int)(entry->edx & 0x1f), + X86_PMC_MAX_FIXED); + pmu->counter_bitmask[KVM_PMC_FIXED] = + ((u64)1 << ((entry->edx >> 5) & 0xff)) - 1; } - pmu->nr_arch_fixed_counters = min((int)(entry->edx & 0x1f), - X86_PMC_MAX_FIXED); - pmu->counter_bitmask[KVM_PMC_FIXED] = - ((u64)1 << ((entry->edx >> 5) & 0xff)) - 1; - pmu->global_ctrl_mask = ~(((1 << pmu->nr_arch_gp_counters) - 1) - | (((1ull << pmu->nr_arch_fixed_counters) - 1) - << X86_PMC_IDX_FIXED)); + pmu->global_ctrl = ((1 << pmu->nr_arch_gp_counters) - 1) | + (((1ull << pmu->nr_arch_fixed_counters) - 1) << X86_PMC_IDX_FIXED); + pmu->global_ctrl_mask = ~pmu->global_ctrl; } void kvm_pmu_init(struct kvm_vcpu *vcpu) -- cgit v0.10.2 From ca9248d8337d525c2d2b26a1d8314478d15707fb Mon Sep 17 00:00:00 2001 From: Bob Peterson Date: Tue, 10 Apr 2012 08:56:04 -0400 Subject: GFS2: Allow caching of rindex glock This patch allows caching of the rindex glock. We were previously setting the GL_NOCACHE bit when the glock was released. That forced the rindex inode to be invalidated, which caused us to re-read rindex at the next access. However, it caused the glock to be unnecessarily bounced around the cluster. This patch allows the glock to remain cached, but it still causes the rindex to be re-read once it has been written to by gfs2_grow. Ben and I have tested single-node gfs2_grow cases and I've tested clustered gfs2_grow cases on my four-node cluster. Signed-off-by: Bob Peterson Signed-off-by: Steven Whitehouse diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c index 38b7a74..9b2ff0e 100644 --- a/fs/gfs2/aops.c +++ b/fs/gfs2/aops.c @@ -807,7 +807,7 @@ static int gfs2_stuffed_write_end(struct inode *inode, struct buffer_head *dibh, if (inode == sdp->sd_rindex) { adjust_fs_space(inode); - ip->i_gh.gh_flags |= GL_NOCACHE; + sdp->sd_rindex_uptodate = 0; } brelse(dibh); @@ -873,7 +873,7 @@ static int gfs2_write_end(struct file *file, struct address_space *mapping, if (inode == sdp->sd_rindex) { adjust_fs_space(inode); - ip->i_gh.gh_flags |= GL_NOCACHE; + sdp->sd_rindex_uptodate = 0; } brelse(dibh); -- cgit v0.10.2 From fae3d88a5c56c3f836e95c4516da883a48612437 Mon Sep 17 00:00:00 2001 From: Fengguang Wu Date: Tue, 10 Apr 2012 17:00:35 +0800 Subject: ALSA: hda - hide HDMI/ELD printks unless snd.debug=2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Also remove two warnings when CONFIG_SND_DEBUG is not set: sound/pci/hda/patch_hdmi.c: In function ‘hdmi_intrinsic_event’: sound/pci/hda/patch_hdmi.c:761:6: warning: unused variable ‘eldv’ [-Wunused-variable] sound/pci/hda/patch_hdmi.c:760:6: warning: unused variable ‘pd’ [-Wunused-variable] Signed-off-by: Wu Fengguang Signed-off-by: Takashi Iwai diff --git a/include/sound/core.h b/include/sound/core.h index b6e0f57..bc05668 100644 --- a/include/sound/core.h +++ b/include/sound/core.h @@ -325,6 +325,13 @@ void release_and_free_resource(struct resource *res); /* --- */ +/* sound printk debug levels */ +enum { + SND_PR_ALWAYS, + SND_PR_DEBUG, + SND_PR_VERBOSE, +}; + #if defined(CONFIG_SND_DEBUG) || defined(CONFIG_SND_VERBOSE_PRINTK) __printf(4, 5) void __snd_printk(unsigned int level, const char *file, int line, @@ -354,6 +361,8 @@ void __snd_printk(unsigned int level, const char *file, int line, */ #define snd_printd(fmt, args...) \ __snd_printk(1, __FILE__, __LINE__, fmt, ##args) +#define _snd_printd(level, fmt, args...) \ + __snd_printk(level, __FILE__, __LINE__, fmt, ##args) /** * snd_BUG - give a BUG warning message and stack trace @@ -383,6 +392,7 @@ void __snd_printk(unsigned int level, const char *file, int line, #else /* !CONFIG_SND_DEBUG */ #define snd_printd(fmt, args...) do { } while (0) +#define _snd_printd(level, fmt, args...) do { } while (0) #define snd_BUG() do { } while (0) static inline int __snd_bug_on(int cond) { diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c index b58b4b1..4c054f4 100644 --- a/sound/pci/hda/hda_eld.c +++ b/sound/pci/hda/hda_eld.c @@ -418,7 +418,7 @@ static void hdmi_show_short_audio_desc(struct cea_sad *a) else buf2[0] = '\0'; - printk(KERN_INFO "HDMI: supports coding type %s:" + _snd_printd(SND_PR_VERBOSE, "HDMI: supports coding type %s:" " channels = %d, rates =%s%s\n", cea_audio_coding_type_names[a->format], a->channels, @@ -442,14 +442,14 @@ void snd_hdmi_show_eld(struct hdmi_eld *e) { int i; - printk(KERN_INFO "HDMI: detected monitor %s at connection type %s\n", + _snd_printd(SND_PR_VERBOSE, "HDMI: detected monitor %s at connection type %s\n", e->monitor_name, eld_connection_type_names[e->conn_type]); if (e->spk_alloc) { char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE]; snd_print_channel_allocation(e->spk_alloc, buf, sizeof(buf)); - printk(KERN_INFO "HDMI: available speakers:%s\n", buf); + _snd_printd(SND_PR_VERBOSE, "HDMI: available speakers:%s\n", buf); } for (i = 0; i < e->sad_count; i++) diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 540cd13..83f345f 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -757,8 +757,6 @@ static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res) struct hdmi_spec *spec = codec->spec; int tag = res >> AC_UNSOL_RES_TAG_SHIFT; int pin_nid; - int pd = !!(res & AC_UNSOL_RES_PD); - int eldv = !!(res & AC_UNSOL_RES_ELDV); int pin_idx; struct hda_jack_tbl *jack; @@ -768,9 +766,10 @@ static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res) pin_nid = jack->nid; jack->jack_dirty = 1; - printk(KERN_INFO + _snd_printd(SND_PR_VERBOSE, "HDMI hot plug event: Codec=%d Pin=%d Presence_Detect=%d ELD_Valid=%d\n", - codec->addr, pin_nid, pd, eldv); + codec->addr, pin_nid, + !!(res & AC_UNSOL_RES_PD), !!(res & AC_UNSOL_RES_ELDV)); pin_idx = pin_nid_to_pin_index(spec, pin_nid); if (pin_idx < 0) @@ -992,7 +991,7 @@ static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll) if (eld->monitor_present) eld_valid = !!(present & AC_PINSENSE_ELDV); - printk(KERN_INFO + _snd_printd(SND_PR_VERBOSE, "HDMI status: Codec=%d Pin=%d Presence_Detect=%d ELD_Valid=%d\n", codec->addr, pin_nid, eld->monitor_present, eld_valid); -- cgit v0.10.2 From 3a48d1c08fe0db79b8647b7042e6a077588b374a Mon Sep 17 00:00:00 2001 From: Kristen Carlson Accardi Date: Tue, 10 Apr 2012 14:15:41 +0100 Subject: i2c: prevent spurious interrupt on Designware controllers Don't call i2c_enable on resume because it causes a spurious interrupt. Signed-off-by: Kristen Carlson Accardi Signed-off-by: Kirill A. Shutemov Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c index 37f4211..00e8f21 100644 --- a/drivers/i2c/busses/i2c-designware-pcidrv.c +++ b/drivers/i2c/busses/i2c-designware-pcidrv.c @@ -182,7 +182,6 @@ static int i2c_dw_pci_resume(struct device *dev) pci_restore_state(pdev); i2c_dw_init(i2c); - i2c_dw_enable(i2c); return 0; } -- cgit v0.10.2 From 6e7beb7ec8b8c3a1927d4d02c33a0e2a8e72eec3 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Tue, 10 Apr 2012 08:31:48 -0700 Subject: ARM: S5PV210: Fix compiler warning in dma.c file Fixes the following warning: warning: 'dma_dmamask' defined but not used [-Wunused-variable] Signed-off-by: Sachin Kamat Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-s5pv210/dma.c b/arch/arm/mach-s5pv210/dma.c index 86ce62f..b8337e2 100644 --- a/arch/arm/mach-s5pv210/dma.c +++ b/arch/arm/mach-s5pv210/dma.c @@ -33,8 +33,6 @@ #include #include -static u64 dma_dmamask = DMA_BIT_MASK(32); - static u8 pdma0_peri[] = { DMACH_UART0_RX, DMACH_UART0_TX, -- cgit v0.10.2 From 60806225cdad7f582fcf5e2d7a089486f9718f2f Mon Sep 17 00:00:00 2001 From: Thomas Abraham Date: Tue, 10 Apr 2012 08:37:59 -0700 Subject: ARM: EXYNOS: Add PDMA and MDMA physical base address defines Add PDMA and MDMA physical base address macros which is require for EXYNOS5 of_dev_auxdata setup. Signed-off-by: Thomas Abraham [kgene.kim@samsung.com: changed dma channel fo mdma1] Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h index 024d38f..6e6d11f 100644 --- a/arch/arm/mach-exynos/include/mach/map.h +++ b/arch/arm/mach-exynos/include/mach/map.h @@ -89,6 +89,10 @@ #define EXYNOS4_PA_MDMA1 0x12840000 #define EXYNOS4_PA_PDMA0 0x12680000 #define EXYNOS4_PA_PDMA1 0x12690000 +#define EXYNOS5_PA_MDMA0 0x10800000 +#define EXYNOS5_PA_MDMA1 0x11C10000 +#define EXYNOS5_PA_PDMA0 0x121A0000 +#define EXYNOS5_PA_PDMA1 0x121B0000 #define EXYNOS4_PA_SYSMMU_MDMA 0x10A40000 #define EXYNOS4_PA_SYSMMU_SSS 0x10A50000 diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c index 0d26f50..4711c89 100644 --- a/arch/arm/mach-exynos/mach-exynos5-dt.c +++ b/arch/arm/mach-exynos/mach-exynos5-dt.c @@ -45,7 +45,7 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = { "exynos4210-uart.3", NULL), OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA0, "dma-pl330.0", NULL), OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA1, "dma-pl330.1", NULL), - OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA1, "dma-pl330.2", NULL), + OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_MDMA1, "dma-pl330.2", NULL), {}, }; -- cgit v0.10.2 From 55158c886a0c43765140673d2343d3119d34a25a Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 10 Apr 2012 09:03:03 -0700 Subject: Input: gpio_mouse - use linux/gpio.h rather than asm/gpio.h Direct usage of the asm include has long been deprecated by the introduction of gpiolib. Signed-off-by: Mark Brown Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/mouse/gpio_mouse.c b/drivers/input/mouse/gpio_mouse.c index a9ad8e1..39fe9b7 100644 --- a/drivers/input/mouse/gpio_mouse.c +++ b/drivers/input/mouse/gpio_mouse.c @@ -12,9 +12,9 @@ #include #include #include +#include #include -#include /* * Timer function which is run every scan_ms ms when the device is opened. -- cgit v0.10.2 From ecb07797ffc1c2aaa2e58d1ba1b5deea44ea5b9e Mon Sep 17 00:00:00 2001 From: Gerard Cauvy Date: Fri, 16 Mar 2012 16:20:10 +0200 Subject: usb: dwc3: ep0: add a default case for SetFeature command Without this default case returning an error, thus replying with a stall, we would fail USB30CV TD 9.11 Bad Feature test case. Cc: stable@vger.kernel.org Signed-off-by: Gerard Cauvy Signed-off-by: Felipe Balbi diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index da43131..3584a16 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -353,6 +353,9 @@ static int dwc3_ep0_handle_feature(struct dwc3 *dwc, dwc->test_mode_nr = wIndex >> 8; dwc->test_mode = true; + break; + default: + return -EINVAL; } break; -- cgit v0.10.2 From afb76df140823c57738598a876cd1d6568cd57c7 Mon Sep 17 00:00:00 2001 From: Vladimir Zapolskiy Date: Fri, 23 Dec 2011 18:37:18 +0200 Subject: usb: musb: fix oops on omap2430 module unload This change prevents runtime suspend and resume actual execution, if omap2430 controller driver is loaded after musb-hdrc, and therefore the controller isn't initialized properly. The problem is reproducible with 3.1.y and 3.2 kernels. Kernel configuration of musb: % cat .config | egrep 'MUSB|GADGET' CONFIG_USB_MUSB_HDRC=y # CONFIG_USB_MUSB_TUSB6010 is not set CONFIG_USB_MUSB_OMAP2PLUS=m # CONFIG_USB_MUSB_AM35X is not set CONFIG_MUSB_PIO_ONLY=y CONFIG_USB_GADGET=y # CONFIG_USB_GADGET_DEBUG is not set # CONFIG_USB_GADGET_DEBUG_FILES is not set # CONFIG_USB_GADGET_DEBUG_FS is not set CONFIG_USB_GADGET_VBUS_DRAW=2 CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS=2 CONFIG_USB_GADGET_MUSB_HDRC=m CONFIG_USB_GADGET_DUALSPEED=y CONFIG_USB_GADGETFS=m # CONFIG_USB_MIDI_GADGET is not set Fixes the following oops on module unloading: Unable to handle kernel NULL pointer dereference at virtual address 00000220 ----8<---- [] (omap2430_runtime_resume+0x24/0x54 [omap2430]) from [] (pm_generic_runtime_resume+0x3c/0x50) [] (pm_generic_runtime_resume+0x3c/0x50) from [] (_od_runtime_resume+0x28/0x2c) [] (_od_runtime_resume+0x28/0x2c) from [] (__rpm_callback+0x60/0xa0) [] (__rpm_callback+0x60/0xa0) from [] (rpm_resume+0x3fc/0x6e4) [] (rpm_resume+0x3fc/0x6e4) from [] (__pm_runtime_resume+0x5c/0x90) [] (__pm_runtime_resume+0x5c/0x90) from [] (__device_release_driver+0x2c/0xd0) [] (__device_release_driver+0x2c/0xd0) from [] (driver_detach+0xe8/0xf4) [] (driver_detach+0xe8/0xf4) from [] (bus_remove_driver+0xa0/0x104) [] (bus_remove_driver+0xa0/0x104) from [] (driver_unregister+0x60/0x80) [] (driver_unregister+0x60/0x80) from [] (platform_driver_unregister+0x1c/0x20) [] (platform_driver_unregister+0x1c/0x20) from [] (omap2430_exit+0x14/0x1c [omap2430]) [] (omap2430_exit+0x14/0x1c [omap2430]) from [] (sys_delete_module+0x1f4/0x264) [] (sys_delete_module+0x1f4/0x264) from [] (ret_fast_syscall+0x0/0x30) Signed-off-by: Vladimir Zapolskiy Cc: Greg Kroah-Hartman Cc: stable@vger.kernel.org # 3.1 Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index 2ae0bb3..11b571e 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -491,11 +491,13 @@ static int omap2430_runtime_suspend(struct device *dev) struct omap2430_glue *glue = dev_get_drvdata(dev); struct musb *musb = glue_to_musb(glue); - musb->context.otg_interfsel = musb_readl(musb->mregs, - OTG_INTERFSEL); + if (musb) { + musb->context.otg_interfsel = musb_readl(musb->mregs, + OTG_INTERFSEL); - omap2430_low_level_exit(musb); - usb_phy_set_suspend(musb->xceiv, 1); + omap2430_low_level_exit(musb); + usb_phy_set_suspend(musb->xceiv, 1); + } return 0; } @@ -505,11 +507,13 @@ static int omap2430_runtime_resume(struct device *dev) struct omap2430_glue *glue = dev_get_drvdata(dev); struct musb *musb = glue_to_musb(glue); - omap2430_low_level_init(musb); - musb_writel(musb->mregs, OTG_INTERFSEL, - musb->context.otg_interfsel); + if (musb) { + omap2430_low_level_init(musb); + musb_writel(musb->mregs, OTG_INTERFSEL, + musb->context.otg_interfsel); - usb_phy_set_suspend(musb->xceiv, 0); + usb_phy_set_suspend(musb->xceiv, 0); + } return 0; } -- cgit v0.10.2 From c04352a590538123f8c93bd87ef1d4bb9e3a64c7 Mon Sep 17 00:00:00 2001 From: Grazvydas Ignotas Date: Sat, 4 Feb 2012 19:43:51 +0200 Subject: usb: musb: fix some runtime_pm issues When runtime_pm was originally added, it was done in rather confusing way: omap2430_musb_init() (called from musb_init_controller) would do runtime_pm_get_sync() and musb_init_controller() itself would do runtime_pm_put to balance it out. This is not only confusing but also wrong if non-omap2430 glue layer is used. This confusion resulted in commit 772aed45b604 "usb: musb: fix pm_runtime mismatch", that removed runtime_pm_put() from musb_init_controller as that looked unbalanced, and also happened to fix unrelated isp1704_charger crash. However this broke runtime PM functionality (musb is now always powered, even without gadget active). Avoid these confusing runtime pm dependences by making musb_init_controller() and omap2430_musb_init() do their own runtime get/put pairs; also cover error paths. Remove unneeded runtime_pm_put in omap2430_remove too. isp1704_charger crash that motivated 772aed45b604 will be fixed by following patch. Cc: Felipe Contreras Signed-off-by: Grazvydas Ignotas Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 0f8b829..2392146 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -1904,7 +1904,7 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl) if (!musb->isr) { status = -ENODEV; - goto fail3; + goto fail2; } if (!musb->xceiv->io_ops) { @@ -1912,6 +1912,8 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl) musb->xceiv->io_ops = &musb_ulpi_access; } + pm_runtime_get_sync(musb->controller); + #ifndef CONFIG_MUSB_PIO_ONLY if (use_dma && dev->dma_mask) { struct dma_controller *c; @@ -2023,6 +2025,8 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl) goto fail5; #endif + pm_runtime_put(musb->controller); + dev_info(dev, "USB %s mode controller at %p using %s, IRQ %d\n", ({char *s; switch (musb->board_mode) { @@ -2047,6 +2051,9 @@ fail4: musb_gadget_cleanup(musb); fail3: + pm_runtime_put_sync(musb->controller); + +fail2: if (musb->irq_wake) device_init_wakeup(dev, 0); musb_platform_exit(musb); diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index 11b571e..3dfd122 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -333,6 +333,7 @@ static int omap2430_musb_init(struct musb *musb) setup_timer(&musb_idle_timer, musb_do_idle, (unsigned long) musb); + pm_runtime_put_noidle(musb->controller); return 0; err1: @@ -478,7 +479,6 @@ static int __devexit omap2430_remove(struct platform_device *pdev) platform_device_del(glue->musb); platform_device_put(glue->musb); - pm_runtime_put(&pdev->dev); kfree(glue); return 0; -- cgit v0.10.2 From f79a60b8785409f5a77767780315ce6d3ea04a44 Mon Sep 17 00:00:00 2001 From: Peter Chen Date: Wed, 29 Feb 2012 20:19:46 +0800 Subject: usb: fsl_udc_core: prime status stage once data stage has primed - For Control Read transfer, the ACK handshake on an IN transaction may be corrupted, so the device may not receive the ACK for data stage, the complete irq will not occur at this situation. Therefore, we need to move prime status stage from complete irq routine to the place where the data stage has just primed, or the host will never get ACK for status stage. The above issue has been described at USB2.0 spec chapter 8.5.3.3. - After adding prime status stage just after prime the data stage, there is a potential problem when the status dTD is added before the data stage has primed by hardware. The reason is the device's dTD descriptor has NO direction bit, if data stage (IN) prime hasn't finished, the status stage(OUT) dTD will be added at data stage dTD's Next dTD Pointer, so when the data stage transfer has finished, the status dTD will be primed as IN by hardware, then the host will never receive ACK from the device side for status stage. - Delete below code at fsl_ep_queue: /* Update ep0 state */ if ((ep_index(ep) == 0)) udc->ep0_state = DATA_STATE_XMIT; the udc->ep0_state will be updated again after udc->driver->setup finishes. It is tested at i.mx51 bbg board with g_mass_storage, g_ether, g_serial. Signed-off-by: Peter Chen Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c index 5f94e79..55abfb6 100644 --- a/drivers/usb/gadget/fsl_udc_core.c +++ b/drivers/usb/gadget/fsl_udc_core.c @@ -730,7 +730,7 @@ static void fsl_queue_td(struct fsl_ep *ep, struct fsl_req *req) : (1 << (ep_index(ep))); /* check if the pipe is empty */ - if (!(list_empty(&ep->queue))) { + if (!(list_empty(&ep->queue)) && !(ep_index(ep) == 0)) { /* Add td to the end */ struct fsl_req *lastreq; lastreq = list_entry(ep->queue.prev, struct fsl_req, queue); @@ -918,10 +918,6 @@ fsl_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) return -ENOMEM; } - /* Update ep0 state */ - if ((ep_index(ep) == 0)) - udc->ep0_state = DATA_STATE_XMIT; - /* irq handler advances the queue */ if (req != NULL) list_add_tail(&req->queue, &ep->queue); @@ -1279,7 +1275,8 @@ static int ep0_prime_status(struct fsl_udc *udc, int direction) udc->ep0_dir = USB_DIR_OUT; ep = &udc->eps[0]; - udc->ep0_state = WAIT_FOR_OUT_STATUS; + if (udc->ep0_state != DATA_STATE_XMIT) + udc->ep0_state = WAIT_FOR_OUT_STATUS; req->ep = ep; req->req.length = 0; @@ -1384,6 +1381,9 @@ static void ch9getstatus(struct fsl_udc *udc, u8 request_type, u16 value, list_add_tail(&req->queue, &ep->queue); udc->ep0_state = DATA_STATE_XMIT; + if (ep0_prime_status(udc, EP_DIR_OUT)) + ep0stall(udc); + return; stall: ep0stall(udc); @@ -1492,6 +1492,14 @@ static void setup_received_irq(struct fsl_udc *udc, spin_lock(&udc->lock); udc->ep0_state = (setup->bRequestType & USB_DIR_IN) ? DATA_STATE_XMIT : DATA_STATE_RECV; + /* + * If the data stage is IN, send status prime immediately. + * See 2.0 Spec chapter 8.5.3.3 for detail. + */ + if (udc->ep0_state == DATA_STATE_XMIT) + if (ep0_prime_status(udc, EP_DIR_OUT)) + ep0stall(udc); + } else { /* No data phase, IN status from gadget */ udc->ep0_dir = USB_DIR_IN; @@ -1520,9 +1528,8 @@ static void ep0_req_complete(struct fsl_udc *udc, struct fsl_ep *ep0, switch (udc->ep0_state) { case DATA_STATE_XMIT: - /* receive status phase */ - if (ep0_prime_status(udc, EP_DIR_OUT)) - ep0stall(udc); + /* already primed at setup_received_irq */ + udc->ep0_state = WAIT_FOR_OUT_STATUS; break; case DATA_STATE_RECV: /* send status phase */ -- cgit v0.10.2 From f7a83fe19336125d7eb26488788dc66c03f2c08e Mon Sep 17 00:00:00 2001 From: Anton Tikhomirov Date: Tue, 6 Mar 2012 14:05:49 +0900 Subject: usb: s3c-hsotg: Fix TX FIFOs allocation According to documentation, TX FIFO_number index starts from 1. For IN endpoint FIFO 0 we use GNPTXFSIZ register for programming the size and memory start address. Signed-off-by: Anton Tikhomirov Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index 69295ba..e3fe5fd 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -340,7 +340,7 @@ static void s3c_hsotg_init_fifo(struct s3c_hsotg *hsotg) /* currently we allocate TX FIFOs for all possible endpoints, * and assume that they are all the same size. */ - for (ep = 0; ep <= 15; ep++) { + for (ep = 1; ep <= 15; ep++) { val = addr; val |= size << S3C_DPTXFSIZn_DPTxFSize_SHIFT; addr += size; -- cgit v0.10.2 From 659ad60cb9128345d0a6b9093dda9b0e366b7937 Mon Sep 17 00:00:00 2001 From: Anton Tikhomirov Date: Tue, 6 Mar 2012 14:07:29 +0900 Subject: usb: s3c-hsotg: Fix maximum patcket size setting for EP0 MPS field of DOEPCTL0 is read only. Signed-off-by: Anton Tikhomirov Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index e3fe5fd..03de169 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -1696,10 +1696,12 @@ static void s3c_hsotg_set_ep_maxpacket(struct s3c_hsotg *hsotg, reg |= mpsval; writel(reg, regs + S3C_DIEPCTL(ep)); - reg = readl(regs + S3C_DOEPCTL(ep)); - reg &= ~S3C_DxEPCTL_MPS_MASK; - reg |= mpsval; - writel(reg, regs + S3C_DOEPCTL(ep)); + if (ep) { + reg = readl(regs + S3C_DOEPCTL(ep)); + reg &= ~S3C_DxEPCTL_MPS_MASK; + reg |= mpsval; + writel(reg, regs + S3C_DOEPCTL(ep)); + } return; -- cgit v0.10.2 From 70fa030ffb652ace81dd5bcab01255b49723caec Mon Sep 17 00:00:00 2001 From: Anton Tikhomirov Date: Tue, 6 Mar 2012 14:08:29 +0900 Subject: usb: s3c-hsotg: Avoid TxFIFO corruption in DMA mode Writing to TxFIFO relates only to Slave mode and leads to TxFIFO corruption in DMA mode. Signed-off-by: Anton Tikhomirov Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index 03de169..8db2366 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -1921,7 +1921,8 @@ static void s3c_hsotg_epint(struct s3c_hsotg *hsotg, unsigned int idx, ints & S3C_DIEPMSK_TxFIFOEmpty) { dev_dbg(hsotg->dev, "%s: ep%d: TxFIFOEmpty\n", __func__, idx); - s3c_hsotg_trytx(hsotg, hs_ep); + if (!using_dma(hsotg)) + s3c_hsotg_trytx(hsotg, hs_ep); } } } -- cgit v0.10.2 From db1d8ba36551bf55222c7961d9e9a1195a612fde Mon Sep 17 00:00:00 2001 From: Anton Tikhomirov Date: Tue, 6 Mar 2012 14:09:19 +0900 Subject: usb: s3c-hsotg: Fix big buffers transfer in DMA mode DMA address register shouldn't be updated manually if transfer size requires multiple packets. Signed-off-by: Anton Tikhomirov Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index 8db2366..105b206 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -741,7 +741,7 @@ static void s3c_hsotg_start_req(struct s3c_hsotg *hsotg, /* write size / packets */ writel(epsize, hsotg->regs + epsize_reg); - if (using_dma(hsotg)) { + if (using_dma(hsotg) && !continuing) { unsigned int dma_reg; /* write DMA address to control register, buffer already -- cgit v0.10.2 From 64b6c8a7019acc38cc6b37f8e72c1e915593b1bb Mon Sep 17 00:00:00 2001 From: Anton Tikhomirov Date: Tue, 6 Mar 2012 17:05:15 +0900 Subject: usb: dwc3: Free event buffers array Array should be freed together with event buffers, since it was allocated dynamically. Signed-off-by: Anton Tikhomirov Signed-off-by: Felipe Balbi diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 7bd815a..99b58d84 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -206,11 +206,11 @@ static void dwc3_free_event_buffers(struct dwc3 *dwc) for (i = 0; i < dwc->num_event_buffers; i++) { evt = dwc->ev_buffs[i]; - if (evt) { + if (evt) dwc3_free_one_event_buffer(dwc, evt); - dwc->ev_buffs[i] = NULL; - } } + + kfree(dwc->ev_buffs); } /** -- cgit v0.10.2 From e2190a97c6d493eef1f180b9dadfd5ffd4706051 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Mon, 12 Mar 2012 12:55:41 +0100 Subject: usb: gadget: FunctionFS: clear FFS_FL_BOUND flag on unbind (bugfix) clear FFS_FL_BOUND flag on unbind (bugfix) Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Acked-by: Michal Nazarewicz Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c index 1cbba70..d187ae7 100644 --- a/drivers/usb/gadget/f_fs.c +++ b/drivers/usb/gadget/f_fs.c @@ -1382,6 +1382,7 @@ static void functionfs_unbind(struct ffs_data *ffs) ffs->ep0req = NULL; ffs->gadget = NULL; ffs_data_put(ffs); + clear_bit(FFS_FL_BOUND, &ffs->flags); } } -- cgit v0.10.2 From 8545e6031a719675da9f3d21f1c8ce143dac7fe5 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Mon, 12 Mar 2012 12:55:42 +0100 Subject: usb: gadget: FunctionFS: make module init & exit __init & __exit make module init & exit __init & __exit Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Acked-by: Michal Nazarewicz Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c index 331cd67..a85eaf4 100644 --- a/drivers/usb/gadget/g_ffs.c +++ b/drivers/usb/gadget/g_ffs.c @@ -161,7 +161,7 @@ static struct usb_composite_driver gfs_driver = { static struct ffs_data *gfs_ffs_data; static unsigned long gfs_registered; -static int gfs_init(void) +static int __init gfs_init(void) { ENTER(); @@ -169,7 +169,7 @@ static int gfs_init(void) } module_init(gfs_init); -static void gfs_exit(void) +static void __exit gfs_exit(void) { ENTER(); -- cgit v0.10.2 From 692933b2ccfce02400dc8360a97acde2846e8541 Mon Sep 17 00:00:00 2001 From: Ajay Kumar Gupta Date: Wed, 14 Mar 2012 17:33:35 +0530 Subject: usb: musb: fix bug in musb_cleanup_urb Control transfers with data expected from device to host will use usb_rcvctrlpipe() for urb->pipe so for such urbs 'is_in' will be set causing control urb to fall into the first "if" condition in musb_cleanup_urb(). Fixed by adding logic to check for non control endpoints. Signed-off-by: Ajay Kumar Gupta Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 79cb0af..ef8d744 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -2098,7 +2098,7 @@ static int musb_cleanup_urb(struct urb *urb, struct musb_qh *qh) } /* turn off DMA requests, discard state, stop polling ... */ - if (is_in) { + if (ep->epnum && is_in) { /* giveback saves bulk toggle */ csr = musb_h_flush_rxfifo(ep, 0); -- cgit v0.10.2 From bf070bc14178f1458e7eccd76316ac24f76f1890 Mon Sep 17 00:00:00 2001 From: Grazvydas Ignotas Date: Wed, 21 Mar 2012 16:35:52 +0200 Subject: usb: musb: wake the device before ulpi transfers musb can be suspended at the time some other driver wants to do ulpi transfers using usb_phy_io_* functions, and that can cause data abort, as it happened with isp1704_charger: http://article.gmane.org/gmane.linux.kernel/1226122 Add pm_runtime to ulpi functions to rectify this. This also adds io_dev to usb_phy so that pm_runtime_* functions can be used. Cc: Felipe Contreras Signed-off-by: Grazvydas Ignotas Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 2392146..66aaccf 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -137,6 +137,9 @@ static int musb_ulpi_read(struct usb_phy *phy, u32 offset) int i = 0; u8 r; u8 power; + int ret; + + pm_runtime_get_sync(phy->io_dev); /* Make sure the transceiver is not in low power mode */ power = musb_readb(addr, MUSB_POWER); @@ -154,15 +157,22 @@ static int musb_ulpi_read(struct usb_phy *phy, u32 offset) while (!(musb_readb(addr, MUSB_ULPI_REG_CONTROL) & MUSB_ULPI_REG_CMPLT)) { i++; - if (i == 10000) - return -ETIMEDOUT; + if (i == 10000) { + ret = -ETIMEDOUT; + goto out; + } } r = musb_readb(addr, MUSB_ULPI_REG_CONTROL); r &= ~MUSB_ULPI_REG_CMPLT; musb_writeb(addr, MUSB_ULPI_REG_CONTROL, r); - return musb_readb(addr, MUSB_ULPI_REG_DATA); + ret = musb_readb(addr, MUSB_ULPI_REG_DATA); + +out: + pm_runtime_put(phy->io_dev); + + return ret; } static int musb_ulpi_write(struct usb_phy *phy, u32 offset, u32 data) @@ -171,6 +181,9 @@ static int musb_ulpi_write(struct usb_phy *phy, u32 offset, u32 data) int i = 0; u8 r = 0; u8 power; + int ret = 0; + + pm_runtime_get_sync(phy->io_dev); /* Make sure the transceiver is not in low power mode */ power = musb_readb(addr, MUSB_POWER); @@ -184,15 +197,20 @@ static int musb_ulpi_write(struct usb_phy *phy, u32 offset, u32 data) while (!(musb_readb(addr, MUSB_ULPI_REG_CONTROL) & MUSB_ULPI_REG_CMPLT)) { i++; - if (i == 10000) - return -ETIMEDOUT; + if (i == 10000) { + ret = -ETIMEDOUT; + goto out; + } } r = musb_readb(addr, MUSB_ULPI_REG_CONTROL); r &= ~MUSB_ULPI_REG_CMPLT; musb_writeb(addr, MUSB_ULPI_REG_CONTROL, r); - return 0; +out: + pm_runtime_put(phy->io_dev); + + return ret; } #else #define musb_ulpi_read NULL @@ -1908,6 +1926,7 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl) } if (!musb->xceiv->io_ops) { + musb->xceiv->io_dev = musb->controller; musb->xceiv->io_priv = musb->mregs; musb->xceiv->io_ops = &musb_ulpi_access; } diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h index f67810f..38ab3f4 100644 --- a/include/linux/usb/otg.h +++ b/include/linux/usb/otg.h @@ -94,6 +94,7 @@ struct usb_phy { struct usb_otg *otg; + struct device *io_dev; struct usb_phy_io_ops *io_ops; void __iomem *io_priv; -- cgit v0.10.2 From 3006dc8c627d738693e910c159630e4368c9e86c Mon Sep 17 00:00:00 2001 From: Kishon Vijay Abraham I Date: Wed, 21 Mar 2012 21:30:20 +0530 Subject: usb: musb: omap: fix crash when musb glue (omap) gets initialized pm_runtime_enable is being called after omap2430_musb_init. Hence pm_runtime_get_sync in omap2430_musb_init does not have any effect (does not enable clocks) resulting in a crash during register access. It is fixed here. Cc: stable@vger.kernel.org # v3.0, v3.1, v3.2, v3.3 Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index 3dfd122..0fb4ce8 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -453,14 +453,14 @@ static int __devinit omap2430_probe(struct platform_device *pdev) goto err2; } + pm_runtime_enable(&pdev->dev); + ret = platform_device_add(musb); if (ret) { dev_err(&pdev->dev, "failed to register musb device\n"); goto err2; } - pm_runtime_enable(&pdev->dev); - return 0; err2: -- cgit v0.10.2 From 8ae8090c82eb407267001f75b3d256b3bd4ae691 Mon Sep 17 00:00:00 2001 From: Kishon Vijay Abraham I Date: Wed, 21 Mar 2012 21:34:30 +0530 Subject: usb: gadget: udc-core: fix asymmetric calls in remove_driver During modprobe of gadget driver, pullup is called after udc_start. In order to make the exit path symmetric when removing a gadget driver, call pullup before ->udc_stop. This is needed to avoid issues with PM where udc_stop disables the module completely (put IP in reset state, cut functional and interface clocks, and so on), which prevents us from accessing the IP's address space, thus creating the possibility of an abort exception when we try to access IP's address space after clocks are off. Cc: stable@vger.kernel.org Signed-off-by: Partha Basak Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c index c261887..2fa9865 100644 --- a/drivers/usb/gadget/udc-core.c +++ b/drivers/usb/gadget/udc-core.c @@ -264,8 +264,8 @@ static void usb_gadget_remove_driver(struct usb_udc *udc) if (udc_is_newstyle(udc)) { udc->driver->disconnect(udc->gadget); udc->driver->unbind(udc->gadget); - usb_gadget_udc_stop(udc->gadget, udc->driver); usb_gadget_disconnect(udc->gadget); + usb_gadget_udc_stop(udc->gadget, udc->driver); } else { usb_gadget_stop(udc->gadget, udc->driver); } -- cgit v0.10.2 From ad579699c4f0274bf522a9252ff9b20c72197e48 Mon Sep 17 00:00:00 2001 From: Shubhrajyoti D Date: Thu, 22 Mar 2012 12:48:06 +0530 Subject: usb: musb: omap: fix the error check for pm_runtime_get_sync pm_runtime_get_sync returns a signed integer. In case of errors it returns a negative value. This patch fixes the error check by making it signed instead of unsigned thus preventing register access if get_sync_fails. Also passes the error cause to the debug message. Cc: stable@vger.kernel.org Cc: Kishon Vijay Abraham I Signed-off-by: Shubhrajyoti D Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index 0fb4ce8..c7785e8 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -282,7 +282,8 @@ static void musb_otg_notifier_work(struct work_struct *data_notifier_work) static int omap2430_musb_init(struct musb *musb) { - u32 l, status = 0; + u32 l; + int status = 0; struct device *dev = musb->controller; struct musb_hdrc_platform_data *plat = dev->platform_data; struct omap_musb_board_data *data = plat->board_data; @@ -301,7 +302,7 @@ static int omap2430_musb_init(struct musb *musb) status = pm_runtime_get_sync(dev); if (status < 0) { - dev_err(dev, "pm_runtime_get_sync FAILED"); + dev_err(dev, "pm_runtime_get_sync FAILED %d\n", status); goto err1; } -- cgit v0.10.2 From f135617224b4a1113b26b8ee5877e94f38e40d1e Mon Sep 17 00:00:00 2001 From: Lukasz Majewski Date: Fri, 10 Feb 2012 09:54:51 +0100 Subject: usb: gadget: rndis: fix Missing req->context assignment It is crucial to assign each req->context value to struct rndis. The problem happens for multi function gadget (g_multi) when multiple functions are calling common usb_composite_dev control request. It might happen that *_setup method from one usb function will alter some fields of this common request issued by other USB function. Signed-off-by: Lukasz Majewski Signed-off-by: Kyungmin Park Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/f_rndis.c b/drivers/usb/gadget/f_rndis.c index 7b1cf18..5234365 100644 --- a/drivers/usb/gadget/f_rndis.c +++ b/drivers/usb/gadget/f_rndis.c @@ -500,6 +500,7 @@ rndis_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl) if (buf) { memcpy(req->buf, buf, n); req->complete = rndis_response_complete; + req->context = rndis; rndis_free_response(rndis->config, buf); value = n; } -- cgit v0.10.2 From 6190c79df861d2c78a7448fe6d4260e5fa53b9b9 Mon Sep 17 00:00:00 2001 From: Bhupesh Sharma Date: Fri, 23 Mar 2012 22:23:13 +0530 Subject: usb: gadget: uvc: Remove non-required locking from 'uvc_queue_next_buffer' routine This patch removes the non-required spinlock acquire/release calls on 'queue->irqlock' from 'uvc_queue_next_buffer' routine. This routine is called from 'video->encode' function (which translates to either 'uvc_video_encode_bulk' or 'uvc_video_encode_isoc') in 'uvc_video.c'. As, the 'video->encode' routines are called with 'queue->irqlock' already held, so acquiring a 'queue->irqlock' again in 'uvc_queue_next_buffer' routine causes a spin lock recursion. Signed-off-by: Bhupesh Sharma Acked-by: Laurent Pinchart Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/uvc_queue.c b/drivers/usb/gadget/uvc_queue.c index d776adb..0cdf89d 100644 --- a/drivers/usb/gadget/uvc_queue.c +++ b/drivers/usb/gadget/uvc_queue.c @@ -543,11 +543,11 @@ done: return ret; } +/* called with queue->irqlock held.. */ static struct uvc_buffer * uvc_queue_next_buffer(struct uvc_video_queue *queue, struct uvc_buffer *buf) { struct uvc_buffer *nextbuf; - unsigned long flags; if ((queue->flags & UVC_QUEUE_DROP_INCOMPLETE) && buf->buf.length != buf->buf.bytesused) { @@ -556,14 +556,12 @@ uvc_queue_next_buffer(struct uvc_video_queue *queue, struct uvc_buffer *buf) return buf; } - spin_lock_irqsave(&queue->irqlock, flags); list_del(&buf->queue); if (!list_empty(&queue->irqqueue)) nextbuf = list_first_entry(&queue->irqqueue, struct uvc_buffer, queue); else nextbuf = NULL; - spin_unlock_irqrestore(&queue->irqlock, flags); buf->buf.sequence = queue->sequence++; do_gettimeofday(&buf->buf.timestamp); -- cgit v0.10.2 From 92b0abf80c5c5f0e0d71d1309688a330fd74731b Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Wed, 28 Mar 2012 09:30:50 +0200 Subject: usb: gadget: eliminate NULL pointer dereference (bugfix) usb: gadget: eliminate NULL pointer dereference (bugfix) This patch fixes a bug which causes NULL pointer dereference in ffs_ep0_ioctl. The bug happens when the FunctionFS is not bound (either has not been bound yet or has been bound and then unbound) and can be reproduced with running the following commands: $ insmod g_ffs.ko $ mount -t functionfs func /dev/usbgadget $ ./null where null.c is: #include #include int main(void) { int fd = open("/dev/usbgadget/ep0", O_RDWR); ioctl(fd, FUNCTIONFS_CLEAR_HALT); return 0; } Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Cc: stable@vger.kernel.org Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c index d187ae7..f52cb1a 100644 --- a/drivers/usb/gadget/f_fs.c +++ b/drivers/usb/gadget/f_fs.c @@ -712,7 +712,7 @@ static long ffs_ep0_ioctl(struct file *file, unsigned code, unsigned long value) if (code == FUNCTIONFS_INTERFACE_REVMAP) { struct ffs_function *func = ffs->func; ret = func ? ffs_func_revmap_intf(func, value) : -ENODEV; - } else if (gadget->ops->ioctl) { + } else if (gadget && gadget->ops->ioctl) { ret = gadget->ops->ioctl(gadget, code, value); } else { ret = -ENOTTY; -- cgit v0.10.2 From fcff311c938c95c90573c060d37648df00e45017 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 21 Mar 2012 12:32:32 +0000 Subject: staging: sep: Fix sign of error One of our errors wasn't negative as intended. Fix this. (Found by Hillf Danton) While we are at it turn user causable messages down to dev_dbg level in the ioctl paths. Signed-off-by: Alan Cox Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/sep/sep_main.c b/drivers/staging/sep/sep_main.c index ad54c2e..f1701bc 100644 --- a/drivers/staging/sep/sep_main.c +++ b/drivers/staging/sep/sep_main.c @@ -3114,7 +3114,7 @@ static long sep_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) current->pid); if (1 == test_bit(SEP_LEGACY_SENDMSG_DONE_OFFSET, &call_status->status)) { - dev_warn(&sep->pdev->dev, + dev_dbg(&sep->pdev->dev, "[PID%d] dcb prep needed before send msg\n", current->pid); error = -EPROTO; @@ -3122,9 +3122,9 @@ static long sep_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) } if (!arg) { - dev_warn(&sep->pdev->dev, + dev_dbg(&sep->pdev->dev, "[PID%d] dcb null arg\n", current->pid); - error = EINVAL; + error = -EINVAL; goto end_function; } -- cgit v0.10.2 From eaa004a4ba3264d17d7e6882948a7980e14e9d20 Mon Sep 17 00:00:00 2001 From: Gerard Snitselaar Date: Fri, 23 Mar 2012 03:21:05 -0700 Subject: staging/vme: Fix module parameters loopback should be declared bool, and variant probably shouldn't be const. Signed-off-by: Gerard Snitselaar Acked-by: Martyn Welch Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/vme/devices/vme_pio2_core.c b/drivers/staging/vme/devices/vme_pio2_core.c index 9fedc44..573c800 100644 --- a/drivers/staging/vme/devices/vme_pio2_core.c +++ b/drivers/staging/vme/devices/vme_pio2_core.c @@ -35,10 +35,10 @@ static int vector[PIO2_CARDS_MAX]; static int vector_num; static int level[PIO2_CARDS_MAX]; static int level_num; -static const char *variant[PIO2_CARDS_MAX]; +static char *variant[PIO2_CARDS_MAX]; static int variant_num; -static int loopback; +static bool loopback; static int pio2_match(struct vme_dev *); static int __devinit pio2_probe(struct vme_dev *); -- cgit v0.10.2 From 50637f050e88fb175135de62a53be33c374a5349 Mon Sep 17 00:00:00 2001 From: Dan Magenheimer Date: Fri, 23 Mar 2012 09:40:15 -0700 Subject: staging: ramster: unbreak my heart The just-merged ramster staging driver was dependent on a cleanup patch in cleancache, so was marked CONFIG_BROKEN until that patch could be merged. That cleancache patch is now merged (and the correct SHA of the cleancache patch is 3167760f83899ccda312b9ad9306ec9e5dda06d4 rather than the one shown in the comment removed in the patch below). So remove the CONFIG_BROKEN now and the comment that is no longer true... Signed-off-by: Dan Magenheimer Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/ramster/Kconfig b/drivers/staging/ramster/Kconfig index 8b57b87..4af1f8d 100644 --- a/drivers/staging/ramster/Kconfig +++ b/drivers/staging/ramster/Kconfig @@ -1,10 +1,6 @@ -# Dependency on CONFIG_BROKEN is because there is a commit dependency -# on a cleancache naming change to be submitted by Konrad Wilk -# a39c00ded70339603ffe1b0ffdf3ade85bcf009a "Merge branch 'stable/cleancache.v13' -# into linux-next. Once this commit is present, BROKEN can be removed config RAMSTER bool "Cross-machine RAM capacity sharing, aka peer-to-peer tmem" - depends on (CLEANCACHE || FRONTSWAP) && CONFIGFS_FS=y && !ZCACHE && !XVMALLOC && !HIGHMEM && BROKEN + depends on (CLEANCACHE || FRONTSWAP) && CONFIGFS_FS=y && !ZCACHE && !XVMALLOC && !HIGHMEM select LZO_COMPRESS select LZO_DECOMPRESS default n -- cgit v0.10.2 From 218f4d437d69b4621f36affd52dcd6343597149a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Lothar=20Wa=C3=9Fmann?= Date: Sat, 24 Mar 2012 07:19:25 +0100 Subject: staging:iio:core add missing increment of loop index in iio_map_array_unregister() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit staging:iio:core add missing increment of loop index in iio_map_array_unregister() Signed-off-by: Lothar Waßmann Acked-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/inkern.c b/drivers/staging/iio/inkern.c index de2c8ea..ef07a02 100644 --- a/drivers/staging/iio/inkern.c +++ b/drivers/staging/iio/inkern.c @@ -82,6 +82,7 @@ int iio_map_array_unregister(struct iio_dev *indio_dev, ret = -ENODEV; goto error_ret; } + i++; } error_ret: mutex_unlock(&iio_map_list_lock); -- cgit v0.10.2 From 401c90e56c48b1c642507a8bec91b7ae21f1156e Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Sat, 24 Mar 2012 23:39:18 +0100 Subject: staging/media/as102: Don't call release_firmware() on uninitialized variable If, in drivers/staging/media/as102/as102_fw.c::as102_fw_upload(), the call cmd_buf = kzalloc(MAX_FW_PKT_SIZE, GFP_KERNEL); should fail and return NULL so that we jump to the 'error:' label, then we'll end up calling 'release_firmware(firmware);' with 'firmware' still uninitialized - not good. The easy fix is to just initialize 'firmware' to NULL when we declare it, since release_firmware() deals gracefully with being passed NULL pointers. Signed-off-by: Jesper Juhl Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/media/as102/as102_fw.c b/drivers/staging/media/as102/as102_fw.c index 43ebc43..1075fb1 100644 --- a/drivers/staging/media/as102/as102_fw.c +++ b/drivers/staging/media/as102/as102_fw.c @@ -165,7 +165,7 @@ error: int as102_fw_upload(struct as10x_bus_adapter_t *bus_adap) { int errno = -EFAULT; - const struct firmware *firmware; + const struct firmware *firmware = NULL; unsigned char *cmd_buf = NULL; char *fw1, *fw2; struct usb_device *dev = bus_adap->usb_dev; -- cgit v0.10.2 From 4ca5218e3939685c2325fc0a0a1ac8150272c93f Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 29 Mar 2012 09:43:54 +0300 Subject: Staging: vt6655-6: check keysize before memcpy() We need to check the we don't copy too much memory. This comes from a copy_from_user() in the ioctl. Signed-off-by: Dan Carpenter Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/vt6655/key.c b/drivers/staging/vt6655/key.c index 0ff8d7b..774b0d4 100644 --- a/drivers/staging/vt6655/key.c +++ b/drivers/staging/vt6655/key.c @@ -655,6 +655,9 @@ bool KeybSetDefaultKey ( return (false); } + if (uKeyLength > MAX_KEY_LEN) + return false; + pTable->KeyTable[MAX_KEY_TABLE-1].bInUse = true; for(ii=0;iiKeyTable[MAX_KEY_TABLE-1].abyBSSID[ii] = 0xFF; diff --git a/drivers/staging/vt6656/key.c b/drivers/staging/vt6656/key.c index 27bb523..ee62a06 100644 --- a/drivers/staging/vt6656/key.c +++ b/drivers/staging/vt6656/key.c @@ -684,6 +684,9 @@ BOOL KeybSetDefaultKey( return (FALSE); } + if (uKeyLength > MAX_KEY_LEN) + return false; + pTable->KeyTable[MAX_KEY_TABLE-1].bInUse = TRUE; for (ii = 0; ii < ETH_ALEN; ii++) pTable->KeyTable[MAX_KEY_TABLE-1].abyBSSID[ii] = 0xFF; -- cgit v0.10.2 From 0d05568ac79bfc595f1eadc3e0fd7a20a45f7b69 Mon Sep 17 00:00:00 2001 From: wwang Date: Tue, 27 Mar 2012 16:43:11 +0800 Subject: staging:rts_pstor:Fix possible panic by NULL pointer dereference rtsx_transport.c (rtsx_transfer_sglist_adma_partial): pointer struct scatterlist *sg, which is mapped in dma_map_sg, is used as an iterator in later transfer operation. It is corrupted and passed to dma_unmap_sg, thus causing fatal unmap of some erroneous address. Fix it by duplicating *sg_ptr for iterating. Signed-off-by: wwang Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rts_pstor/rtsx_transport.c b/drivers/staging/rts_pstor/rtsx_transport.c index 4e3d2c1..9b2e5c9 100644 --- a/drivers/staging/rts_pstor/rtsx_transport.c +++ b/drivers/staging/rts_pstor/rtsx_transport.c @@ -335,6 +335,7 @@ static int rtsx_transfer_sglist_adma_partial(struct rtsx_chip *chip, u8 card, int sg_cnt, i, resid; int err = 0; long timeleft; + struct scatterlist *sg_ptr; u32 val = TRIG_DMA; if ((sg == NULL) || (num_sg <= 0) || !offset || !index) @@ -371,7 +372,7 @@ static int rtsx_transfer_sglist_adma_partial(struct rtsx_chip *chip, u8 card, sg_cnt = dma_map_sg(&(rtsx->pci->dev), sg, num_sg, dma_dir); resid = size; - + sg_ptr = sg; chip->sgi = 0; /* Usually the next entry will be @sg@ + 1, but if this sg element * is part of a chained scatterlist, it could jump to the start of @@ -379,14 +380,14 @@ static int rtsx_transfer_sglist_adma_partial(struct rtsx_chip *chip, u8 card, * the proper sg */ for (i = 0; i < *index; i++) - sg = sg_next(sg); + sg_ptr = sg_next(sg_ptr); for (i = *index; i < sg_cnt; i++) { dma_addr_t addr; unsigned int len; u8 option; - addr = sg_dma_address(sg); - len = sg_dma_len(sg); + addr = sg_dma_address(sg_ptr); + len = sg_dma_len(sg_ptr); RTSX_DEBUGP("DMA addr: 0x%x, Len: 0x%x\n", (unsigned int)addr, len); @@ -415,7 +416,7 @@ static int rtsx_transfer_sglist_adma_partial(struct rtsx_chip *chip, u8 card, if (!resid) break; - sg = sg_next(sg); + sg_ptr = sg_next(sg_ptr); } RTSX_DEBUGP("SG table count = %d\n", chip->sgi); -- cgit v0.10.2 From b5bd70a162492a76ee49065605ca15d484bb623a Mon Sep 17 00:00:00 2001 From: wwang Date: Tue, 27 Mar 2012 16:43:20 +0800 Subject: staging:rts_pstor:Avoid "Bad target number" message when probing driver Avoid "Bad LUN" and "Bad target number" message by setting the supported max_lun and max_id for the scsi host Signed-off-by: wwang Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rts_pstor/rtsx.c b/drivers/staging/rts_pstor/rtsx.c index a7feb3e..1dccd93 100644 --- a/drivers/staging/rts_pstor/rtsx.c +++ b/drivers/staging/rts_pstor/rtsx.c @@ -1000,6 +1000,11 @@ static int __devinit rtsx_probe(struct pci_dev *pci, rtsx_init_chip(dev->chip); + /* set the supported max_lun and max_id for the scsi host + * NOTE: the minimal value of max_id is 1 */ + host->max_id = 1; + host->max_lun = dev->chip->max_lun; + /* Start up our control thread */ th = kthread_run(rtsx_control_thread, dev, CR_DRIVER_NAME); if (IS_ERR(th)) { -- cgit v0.10.2 From 678b7c17073a9e383f204c3e8e0000821afb6103 Mon Sep 17 00:00:00 2001 From: Chris Kelly Date: Thu, 29 Mar 2012 12:09:45 +0000 Subject: staging: ozwpan: Added new maintainer for ozwpan Added Rupesh Gujare to MAINTAINERS file and contact in TODO file for ozwpan driver. Signed-off-by: Chris Kelly Signed-off-by: Greg Kroah-Hartman diff --git a/MAINTAINERS b/MAINTAINERS index 2dcfca8..d87ad18 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6466,6 +6466,7 @@ S: Odd Fixes F: drivers/staging/olpc_dcon/ STAGING - OZMO DEVICES USB OVER WIFI DRIVER +M: Rupesh Gujare M: Chris Kelly S: Maintained F: drivers/staging/ozwpan/ diff --git a/drivers/staging/ozwpan/TODO b/drivers/staging/ozwpan/TODO index f7a9c12..c2d30a7 100644 --- a/drivers/staging/ozwpan/TODO +++ b/drivers/staging/ozwpan/TODO @@ -8,5 +8,7 @@ TODO: - code review by USB developer community. - testing with as many devices as possible. -Please send any patches for this driver to Chris Kelly +Please send any patches for this driver to +Rupesh Gujare +Chris Kelly and Greg Kroah-Hartman . -- cgit v0.10.2 From 3fd654c22c7b002e8681accaed50a6d46656d815 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 29 Mar 2012 21:52:57 +0300 Subject: Staging: rts_pstor: off by one in for loop I already fixed the other similar for loop in this file. I'm not sure how I missed this one. We use seg_no+1 inside the loop so we can't go right up to the end of the loop. Also if we don't break out of the loop then we end up past the end of the array, but with this fix we end up on the last element. Signed-off-by: Dan Carpenter Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rts_pstor/ms.c b/drivers/staging/rts_pstor/ms.c index 66341df..f9a4498 100644 --- a/drivers/staging/rts_pstor/ms.c +++ b/drivers/staging/rts_pstor/ms.c @@ -3498,7 +3498,8 @@ static int ms_rw_multi_sector(struct scsi_cmnd *srb, struct rtsx_chip *chip, u32 log_blk++; - for (seg_no = 0; seg_no < sizeof(ms_start_idx)/2; seg_no++) { + for (seg_no = 0; seg_no < ARRAY_SIZE(ms_start_idx) - 1; + seg_no++) { if (log_blk < ms_start_idx[seg_no+1]) break; } -- cgit v0.10.2 From f4477e90b3ea4c40466e8f418cf41a17aef09192 Mon Sep 17 00:00:00 2001 From: Nitin Gupta Date: Mon, 2 Apr 2012 09:13:56 -0500 Subject: staging: zsmalloc: fix memory leak This patch fixes a memory leak in zsmalloc where the first subpage of each zspage is leaked when the zspage is freed. Signed-off-by: Nitin Gupta Acked-by: Seth Jennings Acked-by: Dan Magenheimer Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/zsmalloc/zsmalloc-main.c b/drivers/staging/zsmalloc/zsmalloc-main.c index 09caa4f..917461c 100644 --- a/drivers/staging/zsmalloc/zsmalloc-main.c +++ b/drivers/staging/zsmalloc/zsmalloc-main.c @@ -267,33 +267,39 @@ static unsigned long obj_idx_to_offset(struct page *page, return off + obj_idx * class_size; } +static void reset_page(struct page *page) +{ + clear_bit(PG_private, &page->flags); + clear_bit(PG_private_2, &page->flags); + set_page_private(page, 0); + page->mapping = NULL; + page->freelist = NULL; + reset_page_mapcount(page); +} + static void free_zspage(struct page *first_page) { - struct page *nextp, *tmp; + struct page *nextp, *tmp, *head_extra; BUG_ON(!is_first_page(first_page)); BUG_ON(first_page->inuse); - nextp = (struct page *)page_private(first_page); + head_extra = (struct page *)page_private(first_page); - clear_bit(PG_private, &first_page->flags); - clear_bit(PG_private_2, &first_page->flags); - set_page_private(first_page, 0); - first_page->mapping = NULL; - first_page->freelist = NULL; - reset_page_mapcount(first_page); + reset_page(first_page); __free_page(first_page); /* zspage with only 1 system page */ - if (!nextp) + if (!head_extra) return; - list_for_each_entry_safe(nextp, tmp, &nextp->lru, lru) { + list_for_each_entry_safe(nextp, tmp, &head_extra->lru, lru) { list_del(&nextp->lru); - clear_bit(PG_private_2, &nextp->flags); - nextp->index = 0; + reset_page(nextp); __free_page(nextp); } + reset_page(head_extra); + __free_page(head_extra); } /* Initialize a newly allocated zspage */ -- cgit v0.10.2 From be0775ac140dd80a1d60fb7e71ec60e649c14ff8 Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Thu, 5 Apr 2012 10:34:56 -0500 Subject: staging: drm/omap: move where DMM driver is registered Not sure what triggered the change in behavior, but seems to result in recursively acquiring a mutex and hanging on boot. But omap_drm_init() seems a much more sane place to register the driver for the DMM sub-device. Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/omapdrm/omap_drv.c b/drivers/staging/omapdrm/omap_drv.c index 3df5b4c..620b8d5 100644 --- a/drivers/staging/omapdrm/omap_drv.c +++ b/drivers/staging/omapdrm/omap_drv.c @@ -803,9 +803,6 @@ static void pdev_shutdown(struct platform_device *device) static int pdev_probe(struct platform_device *device) { DBG("%s", device->name); - if (platform_driver_register(&omap_dmm_driver)) - dev_err(&device->dev, "DMM registration failed\n"); - return drm_platform_init(&omap_drm_driver, device); } @@ -833,6 +830,10 @@ struct platform_driver pdev = { static int __init omap_drm_init(void) { DBG("init"); + if (platform_driver_register(&omap_dmm_driver)) { + /* we can continue on without DMM.. so not fatal */ + dev_err(NULL, "DMM registration failed\n"); + } return platform_driver_register(&pdev); } -- cgit v0.10.2 From 40f32d9345bee0b24d3317b498e79b02e4be27f4 Mon Sep 17 00:00:00 2001 From: Preetham Chandru Date: Mon, 9 Apr 2012 18:05:01 +0530 Subject: staging: iio: ak8975: Remove i2c client data corruption i2c client data set is of type struct indio_dev pointer and hence the pointer returned from i2c_get_clientdata() should be assigned to an object of type struct indio_dev and not to an object of type struct ak8975_data. Also in ak8975_probe() client data should be set first before calling ak8975_setup() as it references the client data. Signed-off-by: Preetham Chandru R CC: Laxman Dewangan Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/magnetometer/ak8975.c b/drivers/staging/iio/magnetometer/ak8975.c index d5ddac3..ebc2d08 100644 --- a/drivers/staging/iio/magnetometer/ak8975.c +++ b/drivers/staging/iio/magnetometer/ak8975.c @@ -108,7 +108,8 @@ static const int ak8975_index_to_reg[] = { static int ak8975_write_data(struct i2c_client *client, u8 reg, u8 val, u8 mask, u8 shift) { - struct ak8975_data *data = i2c_get_clientdata(client); + struct iio_dev *indio_dev = i2c_get_clientdata(client); + struct ak8975_data *data = iio_priv(indio_dev); u8 regval; int ret; @@ -159,7 +160,8 @@ static int ak8975_read_data(struct i2c_client *client, */ static int ak8975_setup(struct i2c_client *client) { - struct ak8975_data *data = i2c_get_clientdata(client); + struct iio_dev *indio_dev = i2c_get_clientdata(client); + struct ak8975_data *data = iio_priv(indio_dev); u8 device_id; int ret; @@ -509,6 +511,7 @@ static int ak8975_probe(struct i2c_client *client, goto exit_gpio; } data = iio_priv(indio_dev); + i2c_set_clientdata(client, indio_dev); /* Perform some basic start-of-day setup of the device. */ err = ak8975_setup(client); if (err < 0) { @@ -516,7 +519,6 @@ static int ak8975_probe(struct i2c_client *client, goto exit_free_iio; } - i2c_set_clientdata(client, indio_dev); data->client = client; mutex_init(&data->lock); data->eoc_irq = client->irq; -- cgit v0.10.2 From 099f5d01a6f73712e17552679aa724e021809a6e Mon Sep 17 00:00:00 2001 From: Colin Cross Date: Wed, 21 Mar 2012 10:18:33 -0700 Subject: android: make persistent_ram based drivers depend on HAVE_MEMBLOCK m68k doesn't have memblock_reserve, which causes a build failure with allmodconfig. Make PERSISTENT_RAM and RAM_CONSOLE depend on HAVE_MEMBLOCK. Reported-by: Geert Uytterhoeven Reported-by: Paul Gortmaker Signed-off-by: Colin Cross Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/Kconfig b/drivers/staging/android/Kconfig index 08a3b11..eb1dee2 100644 --- a/drivers/staging/android/Kconfig +++ b/drivers/staging/android/Kconfig @@ -27,13 +27,14 @@ config ANDROID_LOGGER config ANDROID_PERSISTENT_RAM bool + depends on HAVE_MEMBLOCK select REED_SOLOMON select REED_SOLOMON_ENC8 select REED_SOLOMON_DEC8 config ANDROID_RAM_CONSOLE bool "Android RAM buffer console" - depends on !S390 && !UML + depends on !S390 && !UML && HAVE_MEMBLOCK select ANDROID_PERSISTENT_RAM default n -- cgit v0.10.2 From 5d92f71e687e4e1a0bed489707d1ec58fe1100de Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 21 Mar 2012 09:24:57 +0800 Subject: Staging: android: timed_gpio: Fix resource leak in timed_gpio_probe error paths If gpio_request fails, we need to free all allocated resources. Current code uses wrong array index to access gpio_data array. So current code actually frees gpio_data[i].gpio by j times. This patch moves the error handling code to err_out and thus improves readability. Signed-off-by: Axel Lin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/timed_gpio.c b/drivers/staging/android/timed_gpio.c index bc723ef..45c522c 100644 --- a/drivers/staging/android/timed_gpio.c +++ b/drivers/staging/android/timed_gpio.c @@ -85,7 +85,7 @@ static int timed_gpio_probe(struct platform_device *pdev) struct timed_gpio_platform_data *pdata = pdev->dev.platform_data; struct timed_gpio *cur_gpio; struct timed_gpio_data *gpio_data, *gpio_dat; - int i, j, ret = 0; + int i, ret; if (!pdata) return -EBUSY; @@ -108,18 +108,12 @@ static int timed_gpio_probe(struct platform_device *pdev) gpio_dat->dev.get_time = gpio_get_time; gpio_dat->dev.enable = gpio_enable; ret = gpio_request(cur_gpio->gpio, cur_gpio->name); - if (ret >= 0) { - ret = timed_output_dev_register(&gpio_dat->dev); - if (ret < 0) - gpio_free(cur_gpio->gpio); - } + if (ret < 0) + goto err_out; + ret = timed_output_dev_register(&gpio_dat->dev); if (ret < 0) { - for (j = 0; j < i; j++) { - timed_output_dev_unregister(&gpio_data[i].dev); - gpio_free(gpio_data[i].gpio); - } - kfree(gpio_data); - return ret; + gpio_free(cur_gpio->gpio); + goto err_out; } gpio_dat->gpio = cur_gpio->gpio; @@ -131,6 +125,15 @@ static int timed_gpio_probe(struct platform_device *pdev) platform_set_drvdata(pdev, gpio_data); return 0; + +err_out: + while (--i >= 0) { + timed_output_dev_unregister(&gpio_data[i].dev); + gpio_free(gpio_data[i].gpio); + } + kfree(gpio_data); + + return ret; } static int timed_gpio_remove(struct platform_device *pdev) -- cgit v0.10.2 From 6490311f423b0d77969d6fa2ab6354b87e373bf9 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Mon, 19 Mar 2012 21:50:09 +0400 Subject: staging/xgifb: fix display on XGI Volari Z11m cards Image on Z11m cards was totally garbled due to wrong memory being selected. Add a special handling for Z11m cards. Tested on PCIe Z11 and Z11m cards. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/xgifb/vb_init.c b/drivers/staging/xgifb/vb_init.c index 94d5c35..3650bbf 100644 --- a/drivers/staging/xgifb/vb_init.c +++ b/drivers/staging/xgifb/vb_init.c @@ -61,7 +61,7 @@ XGINew_GetXG20DRAMType(struct xgi_hw_device_info *HwDeviceExtension, } temp = xgifb_reg_get(pVBInfo->P3c4, 0x3B); /* SR3B[7][3]MAA15 MAA11 (Power on Trapping) */ - if ((temp & 0x88) == 0x80) + if (((temp & 0x88) == 0x80) || ((temp & 0x88) == 0x08)) data = 0; /* DDR */ else data = 1; /* DDRII */ diff --git a/drivers/staging/xgifb/vb_setmode.c b/drivers/staging/xgifb/vb_setmode.c index 2919924..60d4adf 100644 --- a/drivers/staging/xgifb/vb_setmode.c +++ b/drivers/staging/xgifb/vb_setmode.c @@ -152,6 +152,7 @@ void InitTo330Pointer(unsigned char ChipType, struct vb_device_info *pVBInfo) pVBInfo->pXGINew_CR97 = &XG20_CR97; if (ChipType == XG27) { + unsigned char temp; pVBInfo->MCLKData = (struct SiS_MCLKData *) XGI27New_MCLKData; pVBInfo->CR40 = XGI27_cr41; @@ -162,7 +163,13 @@ void InitTo330Pointer(unsigned char ChipType, struct vb_device_info *pVBInfo) pVBInfo->pCRDE = XG27_CRDE; pVBInfo->pSR40 = &XG27_SR40; pVBInfo->pSR41 = &XG27_SR41; + pVBInfo->SR15 = XG27_SR13; + /*Z11m DDR*/ + temp = xgifb_reg_get(pVBInfo->P3c4, 0x3B); + /* SR3B[7][3]MAA15 MAA11 (Power on Trapping) */ + if (((temp & 0x88) == 0x80) || ((temp & 0x88) == 0x08)) + pVBInfo->pXGINew_CR97 = &Z11m_CR97; } if (ChipType >= XG20) { diff --git a/drivers/staging/xgifb/vb_table.h b/drivers/staging/xgifb/vb_table.h index dddf261..e8d6f67 100644 --- a/drivers/staging/xgifb/vb_table.h +++ b/drivers/staging/xgifb/vb_table.h @@ -33,6 +33,13 @@ static struct XGI_ECLKDataStruct XGI340_ECLKData[] = { {0x5c, 0x23, 0x01, 166} }; +static unsigned char XG27_SR13[4][8] = { + {0x35, 0x45, 0xb1, 0x00, 0x00, 0x00, 0x00, 0x00}, /* SR13 */ + {0x41, 0x51, 0x5c, 0x00, 0x00, 0x00, 0x00, 0x00}, /* SR14 */ + {0x32, 0x32, 0x42, 0x00, 0x00, 0x00, 0x00, 0x00}, /* SR18 */ + {0x03, 0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00} /* SR1B */ +}; + static unsigned char XGI340_SR13[4][8] = { {0x35, 0x45, 0xb1, 0x00, 0x00, 0x00, 0x00, 0x00}, /* SR13 */ {0x41, 0x51, 0x5c, 0x00, 0x00, 0x00, 0x00, 0x00}, /* SR14 */ @@ -71,7 +78,7 @@ static unsigned char XGI27_cr41[24][8] = { {0x20, 0x40, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00}, /* 0 CR41 */ {0xC4, 0x40, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00}, /* 1 CR8A */ {0xC4, 0x40, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00}, /* 2 CR8B */ - {0xB5, 0x13, 0xa4, 0x00, 0x00, 0x00, 0x00, 0x00}, /* 3 CR40[7], + {0xB3, 0x13, 0xa4, 0x00, 0x00, 0x00, 0x00, 0x00}, /* 3 CR40[7], CR99[2:0], CR45[3:0]*/ {0xf0, 0xf5, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00}, /* 4 CR59 */ @@ -2803,6 +2810,8 @@ static unsigned char XG27_CRDE[2]; static unsigned char XG27_SR40 = 0x04 ; static unsigned char XG27_SR41 = 0x00 ; +static unsigned char Z11m_CR97 = 0x80 ; + static struct XGI330_VCLKDataStruct XGI_VCLKData[] = { /* SR2B,SR2C,SR2D */ {0x1B, 0xE1, 25}, /* 00 (25.175MHz) */ -- cgit v0.10.2 From c4867936474183332db4c19791a65fdad6474fd5 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Tue, 10 Apr 2012 10:42:36 +0200 Subject: drm/i915: properly compute dp dithering for user-created modes We've only computed whether we need to fall back to 6bpc due to dp link bandwidth constrains in mode_valid, but not mode_fixup. Under various circumstances X likes to create new modes which then lack proper 6bpc flags (if required), resulting in mode_fixup failures and ultimately black screens. Chris Wilson pointed out that we still get things wrong for bpp > 24, but that should be fixed in another patch (and it'll be easier because this patch consolidates the logic). The likely culprit for this regression is commit 3d794f87238f74d80e78a7611c7fbde8a54c85c2 Author: Keith Packard Date: Wed Jan 25 08:16:25 2012 -0800 drm/i915: Force explicit bpp selection for intel_dp_link_required v2: Fix indentation and tune down the too bold claim that this should fix the world. Both noticed by Chris Wilson. v3: Try to really git add things. Reported-and-tested-by: Brice Goglin Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=48170 Cc: stable@kernel.org Reviewed-by: Adam Jackson Signed-Off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 110552f..4b63791 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -219,14 +219,38 @@ intel_dp_max_data_rate(int max_link_clock, int max_lanes) return (max_link_clock * max_lanes * 8) / 10; } +static bool +intel_dp_adjust_dithering(struct intel_dp *intel_dp, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + int max_link_clock = intel_dp_link_clock(intel_dp_max_link_bw(intel_dp)); + int max_lanes = intel_dp_max_lane_count(intel_dp); + int max_rate, mode_rate; + + mode_rate = intel_dp_link_required(mode->clock, 24); + max_rate = intel_dp_max_data_rate(max_link_clock, max_lanes); + + if (mode_rate > max_rate) { + mode_rate = intel_dp_link_required(mode->clock, 18); + if (mode_rate > max_rate) + return false; + + if (adjusted_mode) + adjusted_mode->private_flags + |= INTEL_MODE_DP_FORCE_6BPC; + + return true; + } + + return true; +} + static int intel_dp_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { struct intel_dp *intel_dp = intel_attached_dp(connector); - int max_link_clock = intel_dp_link_clock(intel_dp_max_link_bw(intel_dp)); - int max_lanes = intel_dp_max_lane_count(intel_dp); - int max_rate, mode_rate; if (is_edp(intel_dp) && intel_dp->panel_fixed_mode) { if (mode->hdisplay > intel_dp->panel_fixed_mode->hdisplay) @@ -236,16 +260,8 @@ intel_dp_mode_valid(struct drm_connector *connector, return MODE_PANEL; } - mode_rate = intel_dp_link_required(mode->clock, 24); - max_rate = intel_dp_max_data_rate(max_link_clock, max_lanes); - - if (mode_rate > max_rate) { - mode_rate = intel_dp_link_required(mode->clock, 18); - if (mode_rate > max_rate) - return MODE_CLOCK_HIGH; - else - mode->private_flags |= INTEL_MODE_DP_FORCE_6BPC; - } + if (!intel_dp_adjust_dithering(intel_dp, mode, NULL)) + return MODE_CLOCK_HIGH; if (mode->clock < 10000) return MODE_CLOCK_LOW; @@ -672,7 +688,7 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode, int lane_count, clock; int max_lane_count = intel_dp_max_lane_count(intel_dp); int max_clock = intel_dp_max_link_bw(intel_dp) == DP_LINK_BW_2_7 ? 1 : 0; - int bpp = mode->private_flags & INTEL_MODE_DP_FORCE_6BPC ? 18 : 24; + int bpp; static int bws[2] = { DP_LINK_BW_1_62, DP_LINK_BW_2_7 }; if (is_edp(intel_dp) && intel_dp->panel_fixed_mode) { @@ -686,6 +702,11 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode, mode->clock = intel_dp->panel_fixed_mode->clock; } + if (!intel_dp_adjust_dithering(intel_dp, mode, adjusted_mode)) + return false; + + bpp = adjusted_mode->private_flags & INTEL_MODE_DP_FORCE_6BPC ? 18 : 24; + for (lane_count = 1; lane_count <= max_lane_count; lane_count <<= 1) { for (clock = 0; clock <= max_clock; clock++) { int link_avail = intel_dp_max_data_rate(intel_dp_link_clock(bws[clock]), lane_count); -- cgit v0.10.2 From 58f743ee06d400a887a3e30353c69c3151eb64df Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Sun, 25 Mar 2012 20:02:55 -0400 Subject: bcma: fix build error on MIPS; implicit pcibios_enable_device The following is seen during allmodconfig builds for MIPS: drivers/bcma/driver_pci_host.c:518:2: error: implicit declaration of function 'pcibios_enable_device' [-Werror=implicit-function-declaration] cc1: some warnings being treated as errors make[3]: *** [drivers/bcma/driver_pci_host.o] Error 1 Most likey introduced by commit 49dc9577155576b10ff79f0c1486c816b01f58bf "bcma: add PCIe host controller" Add the header instead of implicitly assuming it will be present. Sounds like a good idea, but that alone doesn't fix anything. The real problem is that the Kconfig has settings related to whether PCI is possible, i.e. config BCMA_HOST_PCI_POSSIBLE bool depends on BCMA && PCI = y default y config BCMA_HOST_PCI bool "Support for BCMA on PCI-host bus" depends on BCMA_HOST_PCI_POSSIBLE ...but what is missing is that BCMA_DRIVER_PCI_HOSTMODE doesn't have any dependencies on the above. Add one. CC: Hauke Mehrtens CC: John W. Linville Signed-off-by: Paul Gortmaker Acked-by: Hauke Mehrtens Signed-off-by: John W. Linville diff --git a/drivers/bcma/Kconfig b/drivers/bcma/Kconfig index c1172da..fb7c80f 100644 --- a/drivers/bcma/Kconfig +++ b/drivers/bcma/Kconfig @@ -29,7 +29,7 @@ config BCMA_HOST_PCI config BCMA_DRIVER_PCI_HOSTMODE bool "Driver for PCI core working in hostmode" - depends on BCMA && MIPS + depends on BCMA && MIPS && BCMA_HOST_PCI help PCI core hostmode operation (external PCI bus). diff --git a/drivers/bcma/driver_pci_host.c b/drivers/bcma/driver_pci_host.c index 4e20bcf..d2097a1 100644 --- a/drivers/bcma/driver_pci_host.c +++ b/drivers/bcma/driver_pci_host.c @@ -10,6 +10,7 @@ */ #include "bcma_private.h" +#include #include #include #include -- cgit v0.10.2 From e2bc7c5f3cb8756865aa0ab140d2288f61599dda Mon Sep 17 00:00:00 2001 From: "Chen, Chien-Chia" Date: Thu, 29 Mar 2012 18:21:47 +0800 Subject: rt2x00: Fix rfkill_polling register function. Move rt2x00rfkill_register(rt2x00dev) to rt2x00lib_probe_dev function. It fixes of starting rfkill_poll function at the right time if sets hard rfkill block and reboot. rt2x00mac_rfkill_poll should be starting before bringing up the wireless interface. Signed-off-by: Chen, Chien-Chia Acked-by: Helmut Schaa CC: Kevin Chou Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c index fc9901e..90cc5e7 100644 --- a/drivers/net/wireless/rt2x00/rt2x00dev.c +++ b/drivers/net/wireless/rt2x00/rt2x00dev.c @@ -1062,11 +1062,6 @@ static int rt2x00lib_initialize(struct rt2x00_dev *rt2x00dev) set_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags); - /* - * Register the extra components. - */ - rt2x00rfkill_register(rt2x00dev); - return 0; } @@ -1210,6 +1205,7 @@ int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev) rt2x00link_register(rt2x00dev); rt2x00leds_register(rt2x00dev); rt2x00debug_register(rt2x00dev); + rt2x00rfkill_register(rt2x00dev); return 0; -- cgit v0.10.2 From 011afa1ed8c408d694957d2474d89dc81a60b70c Mon Sep 17 00:00:00 2001 From: Sujith Manoharan Date: Tue, 10 Apr 2012 12:26:11 +0530 Subject: Revert "ath9k: fix going to full-sleep on PS idle" This reverts commit c1afdaff90538ef085b756454f12b29575411214. Users have reported connection failures in 3.3.1 and suspend/resume failures in 3.4-rcX. Revert this commit for now - PS IDLE can be fixed in a clean manner later on. Cc: stable@vger.kernel.org Signed-off-by: Sujith Manoharan Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 215eb25..2504ab0 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -118,15 +118,13 @@ void ath9k_ps_restore(struct ath_softc *sc) if (--sc->ps_usecount != 0) goto unlock; - if (sc->ps_flags & PS_WAIT_FOR_TX_ACK) - goto unlock; - - if (sc->ps_idle) + if (sc->ps_idle && (sc->ps_flags & PS_WAIT_FOR_TX_ACK)) mode = ATH9K_PM_FULL_SLEEP; else if (sc->ps_enabled && !(sc->ps_flags & (PS_WAIT_FOR_BEACON | PS_WAIT_FOR_CAB | - PS_WAIT_FOR_PSPOLL_DATA))) + PS_WAIT_FOR_PSPOLL_DATA | + PS_WAIT_FOR_TX_ACK))) mode = ATH9K_PM_NETWORK_SLEEP; else goto unlock; -- cgit v0.10.2 From 5fb84b1428b271f8767e0eb3fcd7231896edfaa4 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 10 Apr 2012 00:56:42 +0000 Subject: tcp: restore correct limit Commit c43b874d5d714f (tcp: properly initialize tcp memory limits) tried to fix a regression added in commits 4acb4190 & 3dc43e3, but still get it wrong. Result is machines with low amount of memory have too small tcp_rmem[2] value and slow tcp receives : Per socket limit being 1/1024 of memory instead of 1/128 in old kernels, so rcv window is capped to small values. Fix this to match comment and previous behavior. Signed-off-by: Eric Dumazet Cc: Jason Wang Cc: Glauber Costa Signed-off-by: David S. Miller diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 5d54ed3..7758a83 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -3302,8 +3302,7 @@ void __init tcp_init(void) tcp_init_mem(&init_net); /* Set per-socket limits to no more than 1/128 the pressure threshold */ - limit = nr_free_buffer_pages() << (PAGE_SHIFT - 10); - limit = max(limit, 128UL); + limit = nr_free_buffer_pages() << (PAGE_SHIFT - 7); max_share = min(4UL*1024*1024, limit); sysctl_tcp_wmem[0] = SK_MEM_QUANTUM; -- cgit v0.10.2 From 18a223e0b9ec8979320ba364b47c9772391d6d05 Mon Sep 17 00:00:00 2001 From: Neal Cardwell Date: Tue, 10 Apr 2012 07:59:20 +0000 Subject: tcp: fix tcp_rcv_rtt_update() use of an unscaled RTT sample Fix a code path in tcp_rcv_rtt_update() that was comparing scaled and unscaled RTT samples. The intent in the code was to only use the 'm' measurement if it was a new minimum. However, since 'm' had not yet been shifted left 3 bits but 'new_sample' had, this comparison would nearly always succeed, leading us to erroneously set our receive-side RTT estimate to the 'm' sample when that sample could be nearly 8x too high to use. The overall effect is to often cause the receive-side RTT estimate to be significantly too large (up to 40% too large for brief periods in my tests). Signed-off-by: Neal Cardwell Acked-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index e886e2f..e7b54d2 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -474,8 +474,11 @@ static void tcp_rcv_rtt_update(struct tcp_sock *tp, u32 sample, int win_dep) if (!win_dep) { m -= (new_sample >> 3); new_sample += m; - } else if (m < new_sample) - new_sample = m << 3; + } else { + m <<= 3; + if (m < new_sample) + new_sample = m; + } } else { /* No previous measure. */ new_sample = m << 3; -- cgit v0.10.2 From 3ffc9cebb65f6942cd912e33e60e1f09e497e208 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Wed, 28 Mar 2012 14:55:04 -0600 Subject: gpio/sodaville: Convert sodaville driver to new irqdomain API The irqdomain api changed significantly in v3.4 which caused a build failure for this driver. Signed-off-by: Grant Likely Acked-by: Sebastian Andrzej Siewior Cc: Hans J. Koch Cc: Torben Hohn diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index edadbda..e03653d 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -430,7 +430,7 @@ config GPIO_ML_IOH config GPIO_SODAVILLE bool "Intel Sodaville GPIO support" - depends on X86 && PCI && OF && BROKEN + depends on X86 && PCI && OF select GPIO_GENERIC select GENERIC_IRQ_CHIP help diff --git a/drivers/gpio/gpio-sodaville.c b/drivers/gpio/gpio-sodaville.c index 9ba15d3..031e5d2 100644 --- a/drivers/gpio/gpio-sodaville.c +++ b/drivers/gpio/gpio-sodaville.c @@ -41,7 +41,7 @@ struct sdv_gpio_chip_data { int irq_base; void __iomem *gpio_pub_base; - struct irq_domain id; + struct irq_domain *id; struct irq_chip_generic *gc; struct bgpio_chip bgpio; }; @@ -51,10 +51,9 @@ static int sdv_gpio_pub_set_type(struct irq_data *d, unsigned int type) struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); struct sdv_gpio_chip_data *sd = gc->private; void __iomem *type_reg; - u32 irq_offs = d->irq - sd->irq_base; u32 reg; - if (irq_offs < 8) + if (d->hwirq < 8) type_reg = sd->gpio_pub_base + GPIT1R0; else type_reg = sd->gpio_pub_base + GPIT1R1; @@ -63,11 +62,11 @@ static int sdv_gpio_pub_set_type(struct irq_data *d, unsigned int type) switch (type) { case IRQ_TYPE_LEVEL_HIGH: - reg &= ~BIT(4 * (irq_offs % 8)); + reg &= ~BIT(4 * (d->hwirq % 8)); break; case IRQ_TYPE_LEVEL_LOW: - reg |= BIT(4 * (irq_offs % 8)); + reg |= BIT(4 * (d->hwirq % 8)); break; default: @@ -91,7 +90,7 @@ static irqreturn_t sdv_gpio_pub_irq_handler(int irq, void *data) u32 irq_bit = __fls(irq_stat); irq_stat &= ~BIT(irq_bit); - generic_handle_irq(sd->irq_base + irq_bit); + generic_handle_irq(irq_find_mapping(sd->id, irq_bit)); } return IRQ_HANDLED; @@ -127,7 +126,7 @@ static int sdv_xlate(struct irq_domain *h, struct device_node *node, } static struct irq_domain_ops irq_domain_sdv_ops = { - .dt_translate = sdv_xlate, + .xlate = sdv_xlate, }; static __devinit int sdv_register_irqsupport(struct sdv_gpio_chip_data *sd, @@ -149,10 +148,6 @@ static __devinit int sdv_register_irqsupport(struct sdv_gpio_chip_data *sd, if (ret) goto out_free_desc; - sd->id.irq_base = sd->irq_base; - sd->id.of_node = of_node_get(pdev->dev.of_node); - sd->id.ops = &irq_domain_sdv_ops; - /* * This gpio irq controller latches level irqs. Testing shows that if * we unmask & ACK the IRQ before the source of the interrupt is gone @@ -179,7 +174,10 @@ static __devinit int sdv_register_irqsupport(struct sdv_gpio_chip_data *sd, IRQ_GC_INIT_MASK_CACHE, IRQ_NOREQUEST, IRQ_LEVEL | IRQ_NOPROBE); - irq_domain_add(&sd->id); + sd->id = irq_domain_add_legacy(pdev->dev.of_node, SDV_NUM_PUB_GPIOS, + sd->irq_base, 0, &irq_domain_sdv_ops, sd); + if (!sd->id) + goto out_free_irq; return 0; out_free_irq: free_irq(pdev->irq, sd); @@ -260,7 +258,6 @@ static void sdv_gpio_remove(struct pci_dev *pdev) { struct sdv_gpio_chip_data *sd = pci_get_drvdata(pdev); - irq_domain_del(&sd->id); free_irq(pdev->irq, sd); irq_free_descs(sd->irq_base, SDV_NUM_PUB_GPIOS); -- cgit v0.10.2 From 078dc65e61c562e289685fe43b5ef58118e033fc Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 6 Apr 2012 20:37:43 +0800 Subject: gpio: Fix uninitialized variable bit in adp5588_irq_handler The variable 'bit' is uninitialized in the first iteration of for loop. Fix it. Signed-off-by: Axel Lin Signed-off-by: Grant Likely diff --git a/drivers/gpio/gpio-adp5588.c b/drivers/gpio/gpio-adp5588.c index 9ad1703..ae5d7f1 100644 --- a/drivers/gpio/gpio-adp5588.c +++ b/drivers/gpio/gpio-adp5588.c @@ -252,7 +252,7 @@ static irqreturn_t adp5588_irq_handler(int irq, void *devid) if (ret < 0) memset(dev->irq_stat, 0, ARRAY_SIZE(dev->irq_stat)); - for (bank = 0; bank <= ADP5588_BANK(ADP5588_MAXGPIO); + for (bank = 0, bit = 0; bank <= ADP5588_BANK(ADP5588_MAXGPIO); bank++, bit = 0) { pending = dev->irq_stat[bank] & dev->irq_mask[bank]; -- cgit v0.10.2 From 6270d830d030da48eddffbe31ed1e4444f203fc5 Mon Sep 17 00:00:00 2001 From: Roland Stigge Date: Wed, 4 Apr 2012 02:02:58 +0200 Subject: gpio: Fix range check in of_gpio_simple_xlate() of_gpio_simple_xlate() has an off-by-one bug where it checks to see if args[0] is > ngpio instead of >=. args[0] must always be less than ngpio because it is a zero-based enumeration. Signed-off-by: Roland Stigge [grant.likely: beef up commit text] Signed-off-by: Grant Likely diff --git a/drivers/of/gpio.c b/drivers/of/gpio.c index bba8121..bf984b6 100644 --- a/drivers/of/gpio.c +++ b/drivers/of/gpio.c @@ -140,7 +140,7 @@ int of_gpio_simple_xlate(struct gpio_chip *gc, if (WARN_ON(gpiospec->args_count < gc->of_gpio_n_cells)) return -EINVAL; - if (gpiospec->args[0] > gc->ngpio) + if (gpiospec->args[0] >= gc->ngpio) return -EINVAL; if (flags) -- cgit v0.10.2 From a65a6f14dc24a90bde3f5d0073ba2364476200bf Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Tue, 20 Mar 2012 16:59:33 +0100 Subject: USB: serial: fix race between probe and open Fix race between probe and open by making sure that the disconnected flag is not cleared until all ports have been registered. A call to tty_open while probe is running may get a reference to the serial structure in serial_install before its ports have been registered. This may lead to usb_serial_core calling driver open before port is fully initialised. With ftdi_sio this result in the following NULL-pointer dereference as the private data has not been initialised at open: [ 199.698286] IP: [] ftdi_open+0x59/0xe0 [ftdi_sio] [ 199.698297] *pde = 00000000 [ 199.698303] Oops: 0000 [#1] PREEMPT SMP [ 199.698313] Modules linked in: ftdi_sio usbserial [ 199.698323] [ 199.698327] Pid: 1146, comm: ftdi_open Not tainted 3.2.11 #70 Dell Inc. Vostro 1520/0T816J [ 199.698339] EIP: 0060:[] EFLAGS: 00010286 CPU: 0 [ 199.698344] EIP is at ftdi_open+0x59/0xe0 [ftdi_sio] [ 199.698348] EAX: 0000003e EBX: f5067000 ECX: 00000000 EDX: 80000600 [ 199.698352] ESI: f48d8800 EDI: 00000001 EBP: f515dd54 ESP: f515dcfc [ 199.698356] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 [ 199.698361] Process ftdi_open (pid: 1146, ti=f515c000 task=f481e040 task.ti=f515c000) [ 199.698364] Stack: [ 199.698368] f811a9fe f811a9e0 f811b3ef 00000000 00000000 00001388 00000000 f4a86800 [ 199.698387] 00000002 00000000 f806e68e 00000000 f532765c f481e040 00000246 22222222 [ 199.698479] 22222222 22222222 22222222 f5067004 f5327600 f5327638 f515dd74 f806e6ab [ 199.698496] Call Trace: [ 199.698504] [] ? serial_activate+0x2e/0x70 [usbserial] [ 199.698511] [] serial_activate+0x4b/0x70 [usbserial] [ 199.698521] [] tty_port_open+0x7c/0xd0 [ 199.698527] [] ? serial_set_termios+0xa0/0xa0 [usbserial] [ 199.698534] [] serial_open+0x2f/0x70 [usbserial] [ 199.698540] [] tty_open+0x20c/0x510 [ 199.698546] [] chrdev_open+0xe7/0x230 [ 199.698553] [] __dentry_open+0x1f2/0x390 [ 199.698559] [] ? _raw_spin_unlock+0x2c/0x50 [ 199.698565] [] nameidata_to_filp+0x66/0x80 [ 199.698570] [] ? cdev_put+0x20/0x20 [ 199.698576] [] do_last+0x198/0x730 [ 199.698581] [] path_openat+0xa0/0x350 [ 199.698587] [] do_filp_open+0x35/0x80 [ 199.698593] [] ? _raw_spin_unlock+0x2c/0x50 [ 199.698599] [] ? alloc_fd+0xc0/0x100 [ 199.698605] [] ? getname_flags+0x72/0x120 [ 199.698611] [] do_sys_open+0xf0/0x1c0 [ 199.698617] [] ? trace_hardirqs_on_thunk+0xc/0x10 [ 199.698623] [] sys_open+0x2e/0x40 [ 199.698628] [] sysenter_do_call+0x12/0x36 [ 199.698632] Code: 85 89 00 00 00 8b 16 8b 4d c0 c1 e2 08 c7 44 24 14 88 13 00 00 81 ca 00 00 00 80 c7 44 24 10 00 00 00 00 c7 44 24 0c 00 00 00 00 <0f> b7 41 78 31 c9 89 44 24 08 c7 44 24 04 00 00 00 00 c7 04 24 [ 199.698884] EIP: [] ftdi_open+0x59/0xe0 [ftdi_sio] SS:ESP 0068:f515dcfc [ 199.698893] CR2: 0000000000000078 [ 199.698925] ---[ end trace 77c43ec023940cff ]--- Reported-and-tested-by: Ken Huang Cc: stable Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 5413bd5..97355a1 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -1059,6 +1059,12 @@ int usb_serial_probe(struct usb_interface *interface, serial->attached = 1; } + /* Avoid race with tty_open and serial_install by setting the + * disconnected flag and not clearing it until all ports have been + * registered. + */ + serial->disconnected = 1; + if (get_free_serial(serial, num_ports, &minor) == NULL) { dev_err(&interface->dev, "No more free serial devices\n"); goto probe_error; @@ -1078,6 +1084,8 @@ int usb_serial_probe(struct usb_interface *interface, "continuing\n"); } + serial->disconnected = 0; + usb_serial_console_init(debug, minor); exit: -- cgit v0.10.2 From 5631f2c18f4b2845b3e97df1c659c5094a17605f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bruno=20Pr=C3=A9mont?= Date: Tue, 3 Apr 2012 09:59:48 +0200 Subject: sysfs: Prevent crash on unset sysfs group attributes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Do not let the kernel crash when a device is registered with sysfs while group attributes are not set (aka NULL). Warn about the offender with some information about the offending device. This would warn instead of trying NULL pointer deref like: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [] internal_create_group+0x83/0x1a0 PGD 0 Oops: 0000 [#1] SMP CPU 0 Modules linked in: Pid: 1, comm: swapper/0 Not tainted 3.4.0-rc1-x86_64 #3 HP ProLiant DL360 G4 RIP: 0010:[] [] internal_create_group+0x83/0x1a0 RSP: 0018:ffff88019485fd70 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000001 RDX: ffff880192e99908 RSI: ffff880192e99630 RDI: ffffffff81a26c60 RBP: ffff88019485fdc0 R08: 0000000000000000 R09: 0000000000000000 R10: ffff880192e99908 R11: 0000000000000000 R12: ffffffff81a16a00 R13: ffff880192e99908 R14: ffffffff81a16900 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88019bc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000000 CR3: 0000000001a0c000 CR4: 00000000000007f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process swapper/0 (pid: 1, threadinfo ffff88019485e000, task ffff880194878000) Stack: ffff88019485fdd0 ffff880192da9d60 0000000000000000 ffff880192e99908 ffff880192e995d8 0000000000000001 ffffffff81a16a00 ffff880192da9d60 0000000000000000 0000000000000000 ffff88019485fdd0 ffffffff811527be Call Trace: [] sysfs_create_group+0xe/0x10 [] device_add_groups+0x46/0x80 [] device_add+0x46d/0x6a0 ... Signed-off-by: Bruno Prémont Acked-by: Ingo Molnar Signed-off-by: Greg Kroah-Hartman diff --git a/fs/sysfs/group.c b/fs/sysfs/group.c index dd1701c..2df555c 100644 --- a/fs/sysfs/group.c +++ b/fs/sysfs/group.c @@ -67,7 +67,11 @@ static int internal_create_group(struct kobject *kobj, int update, /* Updates may happen before the object has been instantiated */ if (unlikely(update && !kobj->sd)) return -EINVAL; - + if (!grp->attrs) { + WARN(1, "sysfs: attrs not set by subsystem for group: %s/%s\n", + kobj->name, grp->name ? "" : grp->name); + return -EINVAL; + } if (grp->name) { error = sysfs_create_subdir(kobj, grp->name, &sd); if (error) -- cgit v0.10.2 From 3a198886ab5f228fcbebb9ace803d8b99721d49a Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 6 Apr 2012 13:41:06 -0700 Subject: sysfs: handle 'parent deleted before child added' In scsi at least two cases of the parent device being deleted before the child is added have been observed. 1/ scsi is performing async scans and the device is removed prior to the async can thread running (can happen with an in-opportune / unlikely unplug during initial scan). 2/ libsas discovery event running after the parent port has been torn down (this is a bug in libsas). Result in crash signatures like: BUG: unable to handle kernel NULL pointer dereference at 0000000000000098 IP: [] sysfs_create_dir+0x32/0xb6 ... Process scsi_scan_8 (pid: 5417, threadinfo ffff88080bd16000, task ffff880801b8a0b0) Stack: 00000000fffffffe ffff880813470628 ffff88080bd17cd0 ffff88080614b7e8 ffff88080b45c108 00000000fffffffe ffff88080bd17d20 ffffffff8125e4a8 ffff88080bd17cf0 ffffffff81075149 ffff88080bd17d30 ffff88080614b7e8 Call Trace: [] kobject_add_internal+0x120/0x1e3 [] ? trace_hardirqs_on+0xd/0xf [] kobject_add_varg+0x41/0x50 [] kobject_add+0x64/0x66 [] device_add+0x12d/0x63a In this scenario the parent is still valid (because we have a reference), but it has been device_del()'d which means its kobj->sd pointer is NULL'd via: device_del()->kobject_del()->sysfs_remove_dir() ...and then sysfs_create_dir() (without this fix) goes ahead and de-references parent_sd via sysfs_ns_type(): return (sd->s_flags & SYSFS_NS_TYPE_MASK) >> SYSFS_NS_TYPE_SHIFT; This scenario is being fixed in scsi/libsas, but if other subsystems present the same ordering the system need not immediately crash. Cc: Greg Kroah-Hartman Cc: James Bottomley Signed-off-by: Dan Williams Signed-off-by: Greg Kroah-Hartman diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c index 8ddc102..35a36d3 100644 --- a/fs/sysfs/dir.c +++ b/fs/sysfs/dir.c @@ -729,6 +729,9 @@ int sysfs_create_dir(struct kobject * kobj) else parent_sd = &sysfs_root; + if (!parent_sd) + return -ENOENT; + if (sysfs_ns_type(parent_sd)) ns = kobj->ktype->namespace(kobj); type = sysfs_read_ns_type(kobj); -- cgit v0.10.2 From 282029c005e65ffdce3aa9f8220f88a8bbbc4dae Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 6 Apr 2012 13:41:15 -0700 Subject: kobject: provide more diagnostic info for kobject_add_internal() failures 1/ convert open-coded KERN_ERR+dump_stack() to WARN(), so that automated tools pick up this warning. 2/ include the 'child' and 'parent' kobject names. This information was useful for tracking down the case where scsi invoked device_del() on a parent object and subsequently invoked device_add() on a child. Now the warning looks like: kobject_add_internal failed for target8:0:16 (error: -2 parent: end_device-8:0:24) Pid: 2942, comm: scsi_scan_8 Not tainted 3.3.0-rc7-isci+ #2 Call Trace: [] kobject_add_internal+0x1c1/0x1f3 [] ? trace_hardirqs_on+0xd/0xf [] kobject_add_varg+0x41/0x50 [] kobject_add+0x64/0x66 [] device_add+0x12d/0x63a [] ? kobject_put+0x4c/0x50 [] scsi_sysfs_add_sdev+0x4e/0x28a [] do_scan_async+0x9c/0x145 Cc: Greg Kroah-Hartman Cc: James Bottomley Signed-off-by: Dan Williams Signed-off-by: Greg Kroah-Hartman diff --git a/lib/kobject.c b/lib/kobject.c index 21dee7c..aeefa8b 100644 --- a/lib/kobject.c +++ b/lib/kobject.c @@ -192,14 +192,14 @@ static int kobject_add_internal(struct kobject *kobj) /* be noisy on error issues */ if (error == -EEXIST) - printk(KERN_ERR "%s failed for %s with " - "-EEXIST, don't try to register things with " - "the same name in the same directory.\n", - __func__, kobject_name(kobj)); + WARN(1, "%s failed for %s with " + "-EEXIST, don't try to register things with " + "the same name in the same directory.\n", + __func__, kobject_name(kobj)); else - printk(KERN_ERR "%s failed for %s (%d)\n", - __func__, kobject_name(kobj), error); - dump_stack(); + WARN(1, "%s failed for %s (error: %d parent: %s)\n", + __func__, kobject_name(kobj), error, + parent ? kobject_name(parent) : "'none'"); } else kobj->state_in_sysfs = 1; -- cgit v0.10.2 From bb334e90cc3a2913906665ea966abd7f462b67c2 Mon Sep 17 00:00:00 2001 From: Alex He Date: Thu, 22 Mar 2012 15:06:59 +0800 Subject: xHCI: correct to print the true HSEE of USBCMD Correct the print of HSEE of USBCMD in xhci-dbg.c. Signed-off-by: Alex He Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci-dbg.c b/drivers/usb/host/xhci-dbg.c index e9b0f04..4b436f5 100644 --- a/drivers/usb/host/xhci-dbg.c +++ b/drivers/usb/host/xhci-dbg.c @@ -119,7 +119,7 @@ static void xhci_print_command_reg(struct xhci_hcd *xhci) xhci_dbg(xhci, " Event Interrupts %s\n", (temp & CMD_EIE) ? "enabled " : "disabled"); xhci_dbg(xhci, " Host System Error Interrupts %s\n", - (temp & CMD_EIE) ? "enabled " : "disabled"); + (temp & CMD_HSEIE) ? "enabled " : "disabled"); xhci_dbg(xhci, " HC has %sfinished light reset\n", (temp & CMD_LRESET) ? "not " : ""); } -- cgit v0.10.2 From a46c46a1d752756ba159dd454b746a3fb735c4f5 Mon Sep 17 00:00:00 2001 From: Gerard Snitselaar Date: Fri, 16 Mar 2012 11:34:11 -0700 Subject: usb: xhci: fix section mismatch in linux-next xhci_unregister_pci() is called in xhci_hcd_init(). Signed-off-by: Gerard Snitselaar Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index ef98b38..0d7b851 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -326,7 +326,7 @@ int __init xhci_register_pci(void) return pci_register_driver(&xhci_pci_driver); } -void __exit xhci_unregister_pci(void) +void xhci_unregister_pci(void) { pci_unregister_driver(&xhci_pci_driver); } -- cgit v0.10.2 From 923e9a1399b620d063cd88537c64561bc3d5f905 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Tue, 10 Apr 2012 13:26:44 -0700 Subject: Smack: build when CONFIG_AUDIT not defined This fixes builds where CONFIG_AUDIT is not defined and CONFIG_SECURITY_SMACK=y. This got introduced by the stack-usage reducation commit 48c62af68a40 ("LSM: shrink the common_audit_data data union"). Signed-off-by: Kees Cook Acked-by: Eric Paris Signed-off-by: Linus Torvalds diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index 81c03a5..10056f2 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -1939,18 +1939,19 @@ static int smack_netlabel_send(struct sock *sk, struct sockaddr_in *sap) char *hostsp; struct socket_smack *ssp = sk->sk_security; struct smk_audit_info ad; - struct lsm_network_audit net; rcu_read_lock(); hostsp = smack_host_label(sap); if (hostsp != NULL) { - sk_lbl = SMACK_UNLABELED_SOCKET; #ifdef CONFIG_AUDIT + struct lsm_network_audit net; + smk_ad_init_net(&ad, __func__, LSM_AUDIT_DATA_NET, &net); ad.a.u.net->family = sap->sin_family; ad.a.u.net->dport = sap->sin_port; ad.a.u.net->v4info.daddr = sap->sin_addr.s_addr; #endif + sk_lbl = SMACK_UNLABELED_SOCKET; rc = smk_access(ssp->smk_out, hostsp, MAY_WRITE, &ad); } else { sk_lbl = SMACK_CIPSO_SOCKET; @@ -2809,11 +2810,14 @@ static int smack_unix_stream_connect(struct sock *sock, struct socket_smack *osp = other->sk_security; struct socket_smack *nsp = newsk->sk_security; struct smk_audit_info ad; - struct lsm_network_audit net; int rc = 0; +#ifdef CONFIG_AUDIT + struct lsm_network_audit net; + smk_ad_init_net(&ad, __func__, LSM_AUDIT_DATA_NET, &net); smk_ad_setfield_u_net_sk(&ad, other); +#endif if (!capable(CAP_MAC_OVERRIDE)) rc = smk_access(ssp->smk_out, osp->smk_in, MAY_WRITE, &ad); @@ -2842,11 +2846,14 @@ static int smack_unix_may_send(struct socket *sock, struct socket *other) struct socket_smack *ssp = sock->sk->sk_security; struct socket_smack *osp = other->sk->sk_security; struct smk_audit_info ad; - struct lsm_network_audit net; int rc = 0; +#ifdef CONFIG_AUDIT + struct lsm_network_audit net; + smk_ad_init_net(&ad, __func__, LSM_AUDIT_DATA_NET, &net); smk_ad_setfield_u_net_sk(&ad, other->sk); +#endif if (!capable(CAP_MAC_OVERRIDE)) rc = smk_access(ssp->smk_out, osp->smk_in, MAY_WRITE, &ad); @@ -2993,7 +3000,9 @@ static int smack_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) char *csp; int rc; struct smk_audit_info ad; +#ifdef CONFIG_AUDIT struct lsm_network_audit net; +#endif if (sk->sk_family != PF_INET && sk->sk_family != PF_INET6) return 0; @@ -3156,7 +3165,9 @@ static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb, char *sp; int rc; struct smk_audit_info ad; +#ifdef CONFIG_AUDIT struct lsm_network_audit net; +#endif /* handle mapped IPv4 packets arriving via IPv6 sockets */ if (family == PF_INET6 && skb->protocol == htons(ETH_P_IP)) -- cgit v0.10.2 From fae2e0fb24c61ca68c98d854a34732549ebc1854 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Wed, 11 Apr 2012 10:42:15 +1000 Subject: powerpc: Fix typo in runlatch code Commit fe1952fc0afb9a2e4c79f103c08aef5d13db1873 "powerpc: Rework runlatch code" has a nasty typo where it uses "TLF_RUNLATCH" instead of "_TLF_RUNLATCH" (bit number instead of bit mask), causing some flags to be potentially lost such as _TLF_RESTORE_SIGMASK (Brown paper bag for me ! We should be able to make that break at compile time with a bit of magic, any volunteer ?) Signed-off-by: Benjamin Herrenschmidt diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index f88698c..4937c96 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -1235,7 +1235,7 @@ void __ppc64_runlatch_on(void) ctrl |= CTRL_RUNLATCH; mtspr(SPRN_CTRLT, ctrl); - ti->local_flags |= TLF_RUNLATCH; + ti->local_flags |= _TLF_RUNLATCH; } /* Called with hard IRQs off */ @@ -1244,7 +1244,7 @@ void __ppc64_runlatch_off(void) struct thread_info *ti = current_thread_info(); unsigned long ctrl; - ti->local_flags &= ~TLF_RUNLATCH; + ti->local_flags &= ~_TLF_RUNLATCH; ctrl = mfspr(SPRN_CTRLF); ctrl &= ~CTRL_RUNLATCH; -- cgit v0.10.2 From 09d208ec74b804b9dcd0b1cd9c21dfd592760807 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 10 Apr 2012 21:10:43 -0400 Subject: MAINTAINERS: Mark NATSEMI driver as orphan'd. After discussion with Tim Hockin. Signed-off-by: David S. Miller diff --git a/MAINTAINERS b/MAINTAINERS index 6d05ae2..71b7f5c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4533,8 +4533,7 @@ S: Supported F: drivers/net/ethernet/myricom/myri10ge/ NATSEMI ETHERNET DRIVER (DP8381x) -M: Tim Hockin -S: Maintained +S: Orphan F: drivers/net/ethernet/natsemi/natsemi.c NATIVE INSTRUMENTS USB SOUND INTERFACE DRIVER -- cgit v0.10.2 From 9a5c7d6eb9b8cc9fa1c7169ecfd96c9e267c0452 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Tue, 3 Apr 2012 14:12:55 +0530 Subject: gpio/exynos: Fix compiler warning in gpio-samsung.c file MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fixes the following warning when "SAMSUNG EXYNOS5" is not selected: warning: ‘exynos5_gpios_1’ defined but not used [-Wunused-variable] warning: ‘exynos5_gpios_2’ defined but not used [-Wunused-variable] warning: ‘exynos5_gpios_3’ defined but not used [-Wunused-variable] warning: ‘exynos5_gpios_4’ defined but not used [-Wunused-variable] Signed-off-by: Sachin Kamat Signed-off-by: Grant Likely diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c index 4627787..19d6fc0 100644 --- a/drivers/gpio/gpio-samsung.c +++ b/drivers/gpio/gpio-samsung.c @@ -2382,8 +2382,8 @@ static struct samsung_gpio_chip exynos4_gpios_3[] = { #endif }; -static struct samsung_gpio_chip exynos5_gpios_1[] = { #ifdef CONFIG_ARCH_EXYNOS5 +static struct samsung_gpio_chip exynos5_gpios_1[] = { { .chip = { .base = EXYNOS5_GPA0(0), @@ -2541,11 +2541,11 @@ static struct samsung_gpio_chip exynos5_gpios_1[] = { .to_irq = samsung_gpiolib_to_irq, }, }, -#endif }; +#endif -static struct samsung_gpio_chip exynos5_gpios_2[] = { #ifdef CONFIG_ARCH_EXYNOS5 +static struct samsung_gpio_chip exynos5_gpios_2[] = { { .chip = { .base = EXYNOS5_GPE0(0), @@ -2602,11 +2602,11 @@ static struct samsung_gpio_chip exynos5_gpios_2[] = { }, }, -#endif }; +#endif -static struct samsung_gpio_chip exynos5_gpios_3[] = { #ifdef CONFIG_ARCH_EXYNOS5 +static struct samsung_gpio_chip exynos5_gpios_3[] = { { .chip = { .base = EXYNOS5_GPV0(0), @@ -2638,11 +2638,11 @@ static struct samsung_gpio_chip exynos5_gpios_3[] = { .label = "GPV4", }, }, -#endif }; +#endif -static struct samsung_gpio_chip exynos5_gpios_4[] = { #ifdef CONFIG_ARCH_EXYNOS5 +static struct samsung_gpio_chip exynos5_gpios_4[] = { { .chip = { .base = EXYNOS5_GPZ(0), @@ -2650,8 +2650,8 @@ static struct samsung_gpio_chip exynos5_gpios_4[] = { .label = "GPZ", }, }, -#endif }; +#endif #if defined(CONFIG_ARCH_EXYNOS) && defined(CONFIG_OF) -- cgit v0.10.2 From 39ec0d38141b198f94fd19c2bb10fd7c616510d2 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Lothar=20Wa=C3=9Fmann?= Date: Tue, 3 Apr 2012 15:03:44 +0200 Subject: spi/imx: prevent NULL pointer dereference in spi_imx_probe() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When no platform_data is present and either 'spi-num-chipselects' is not defined in the DT or 'cs-gpios' has less entries than 'spi-num-chipselects' specifies, the NULL platform_data pointer is being dereferenced. Signed-off-by: Lothar Waßmann Signed-off-by: Grant Likely diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index 373f4ff..570f220 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -766,8 +766,12 @@ static int __devinit spi_imx_probe(struct platform_device *pdev) } ret = of_property_read_u32(np, "fsl,spi-num-chipselects", &num_cs); - if (ret < 0) - num_cs = mxc_platform_info->num_chipselect; + if (ret < 0) { + if (mxc_platform_info) + num_cs = mxc_platform_info->num_chipselect; + else + return ret; + } master = spi_alloc_master(&pdev->dev, sizeof(struct spi_imx_data) + sizeof(int) * num_cs); @@ -784,7 +788,7 @@ static int __devinit spi_imx_probe(struct platform_device *pdev) for (i = 0; i < master->num_chipselect; i++) { int cs_gpio = of_get_named_gpio(np, "cs-gpios", i); - if (cs_gpio < 0) + if (cs_gpio < 0 && mxc_platform_info) cs_gpio = mxc_platform_info->chipselect[i]; spi_imx->chipselect[i] = cs_gpio; -- cgit v0.10.2 From 5b7526e3a640e491075557acaa842c59c652c0c3 Mon Sep 17 00:00:00 2001 From: David Daney Date: Thu, 5 Apr 2012 16:52:13 -0700 Subject: irq/irq_domain: Quit ignoring error returns from irq_alloc_desc_from(). In commit 4bbdd45a (irq_domain/powerpc: eliminate irq_map; use irq_alloc_desc() instead) code was added that ignores error returns from irq_alloc_desc_from() by (silently) casting the return value to unsigned. The negitive value error return now suddenly looks like a valid irq number. Commits cc79ca69 (irq_domain: Move irq_domain code from powerpc to kernel/irq) and 1bc04f2c (irq_domain: Add support for base irq and hwirq in legacy mappings) move this code to its current location in irqdomain.c The result of all of this is a null pointer dereference OOPS if one of the error cases is hit. The fix: Don't cast away the negativeness of the return value and then check for errors. Signed-off-by: David Daney Acked-by: Rob Herring [grant.likely: dropped addition of new 'irq' variable] Signed-off-by: Grant Likely diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index 3601f3f..9310a8d 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -350,7 +350,8 @@ unsigned int irq_create_direct_mapping(struct irq_domain *domain) unsigned int irq_create_mapping(struct irq_domain *domain, irq_hw_number_t hwirq) { - unsigned int virq, hint; + unsigned int hint; + int virq; pr_debug("irq: irq_create_mapping(0x%p, 0x%lx)\n", domain, hwirq); @@ -381,9 +382,9 @@ unsigned int irq_create_mapping(struct irq_domain *domain, if (hint == 0) hint++; virq = irq_alloc_desc_from(hint, 0); - if (!virq) + if (virq <= 0) virq = irq_alloc_desc_from(1, 0); - if (!virq) { + if (virq <= 0) { pr_debug("irq: -> virq allocation failed\n"); return 0; } -- cgit v0.10.2 From a699e4e49ec3fb62c4a44394357d14081df10bef Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Tue, 3 Apr 2012 07:11:04 -0600 Subject: irq: Kill pointless irqd_to_hw export It makes no sense to export this trivial function. Make it a static inline instead. This patch also drops virq_to_hw from arch/c6x since it is unused by that architecture. v2: Move irq_hw_number_t into types.h to fix ARM build failure Signed-off-by: Grant Likely Acked-by: Thomas Gleixner Cc: Benjamin Herrenschmidt diff --git a/arch/c6x/include/asm/irq.h b/arch/c6x/include/asm/irq.h index f13b78d..ab4577f 100644 --- a/arch/c6x/include/asm/irq.h +++ b/arch/c6x/include/asm/irq.h @@ -42,10 +42,6 @@ /* This number is used when no interrupt has been assigned */ #define NO_IRQ 0 -struct irq_data; -extern irq_hw_number_t irqd_to_hwirq(struct irq_data *d); -extern irq_hw_number_t virq_to_hw(unsigned int virq); - extern void __init init_pic_c64xplus(void); extern void init_IRQ(void); diff --git a/arch/c6x/kernel/irq.c b/arch/c6x/kernel/irq.c index 65b8ddf..c90fb5e 100644 --- a/arch/c6x/kernel/irq.c +++ b/arch/c6x/kernel/irq.c @@ -130,16 +130,3 @@ int arch_show_interrupts(struct seq_file *p, int prec) seq_printf(p, "%*s: %10lu\n", prec, "Err", irq_err_count); return 0; } - -irq_hw_number_t irqd_to_hwirq(struct irq_data *d) -{ - return d->hwirq; -} -EXPORT_SYMBOL_GPL(irqd_to_hwirq); - -irq_hw_number_t virq_to_hw(unsigned int virq) -{ - struct irq_data *irq_data = irq_get_irq_data(virq); - return WARN_ON(!irq_data) ? 0 : irq_data->hwirq; -} -EXPORT_SYMBOL_GPL(virq_to_hw); diff --git a/arch/powerpc/include/asm/irq.h b/arch/powerpc/include/asm/irq.h index cf417e51..e648af9 100644 --- a/arch/powerpc/include/asm/irq.h +++ b/arch/powerpc/include/asm/irq.h @@ -33,8 +33,6 @@ extern atomic_t ppc_n_lost_interrupts; /* Same thing, used by the generic IRQ code */ #define NR_IRQS_LEGACY NUM_ISA_INTERRUPTS -struct irq_data; -extern irq_hw_number_t irqd_to_hwirq(struct irq_data *d); extern irq_hw_number_t virq_to_hw(unsigned int virq); /** diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 243dbab..5ec1b23 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -560,12 +560,6 @@ void do_softirq(void) local_irq_restore(flags); } -irq_hw_number_t irqd_to_hwirq(struct irq_data *d) -{ - return d->hwirq; -} -EXPORT_SYMBOL_GPL(irqd_to_hwirq); - irq_hw_number_t virq_to_hw(unsigned int virq) { struct irq_data *irq_data = irq_get_irq_data(virq); diff --git a/include/linux/irq.h b/include/linux/irq.h index bff29c5..7810406 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -263,6 +263,11 @@ static inline void irqd_clr_chained_irq_inprogress(struct irq_data *d) d->state_use_accessors &= ~IRQD_IRQ_INPROGRESS; } +static inline irq_hw_number_t irqd_to_hwirq(struct irq_data *d) +{ + return d->hwirq; +} + /** * struct irq_chip - hardware interrupt chip descriptor * diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h index ead4a42..ac17b9b 100644 --- a/include/linux/irqdomain.h +++ b/include/linux/irqdomain.h @@ -42,12 +42,6 @@ struct of_device_id; /* Number of irqs reserved for a legacy isa controller */ #define NUM_ISA_INTERRUPTS 16 -/* This type is the placeholder for a hardware interrupt number. It has to - * be big enough to enclose whatever representation is used by a given - * platform. - */ -typedef unsigned long irq_hw_number_t; - /** * struct irq_domain_ops - Methods for irq_domain objects * @match: Match an interrupt controller device node to a host, returns diff --git a/include/linux/types.h b/include/linux/types.h index e5fa503..7f480db 100644 --- a/include/linux/types.h +++ b/include/linux/types.h @@ -210,6 +210,12 @@ typedef u32 phys_addr_t; typedef phys_addr_t resource_size_t; +/* + * This type is the placeholder for a hardware interrupt number. It has to be + * big enough to enclose whatever representation is used by a given platform. + */ +typedef unsigned long irq_hw_number_t; + typedef struct { int counter; } atomic_t; -- cgit v0.10.2 From ac5830a33f5b25eae1dc0708b3e7a3d270a6c07f Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Tue, 10 Apr 2012 15:25:42 +0300 Subject: irq_domain: correct the debugfs file name The actual name of the irq_domain mapping debugfs file is "irq_domain_mapping" not "virq_mapping". Signed-off-by: Mika Westerberg Signed-off-by: Grant Likely diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig index cf1a4a6..d1a758b 100644 --- a/kernel/irq/Kconfig +++ b/kernel/irq/Kconfig @@ -62,7 +62,7 @@ config IRQ_DOMAIN_DEBUG help This option will show the mapping relationship between hardware irq numbers and Linux irq numbers. The mapping is exposed via debugfs - in the file "virq_mapping". + in the file "irq_domain_mapping". If you don't know what this means you don't need it. -- cgit v0.10.2 From 15e06bf64f686befd2030da867a3dad965b96cc0 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Wed, 11 Apr 2012 00:26:25 -0600 Subject: irqdomain: Fix debugfs formatting This patch fixes the irq_domain_mapping debugfs output to pad pointer values with leading zeros so that pointer values are displayed correctly. Otherwise you get output similar to "0x 5e0000000000000". Also, when the irq_domain is set to 'null' Signed-off-by: Grant Likely Cc: David Daney Cc: Mika Westerberg diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index 9310a8d..eb05e40 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -643,8 +643,8 @@ static int virq_debug_show(struct seq_file *m, void *private) void *data; int i; - seq_printf(m, "%-5s %-7s %-15s %-18s %s\n", "virq", "hwirq", - "chip name", "chip data", "domain name"); + seq_printf(m, "%-5s %-7s %-15s %-*s %s\n", "irq", "hwirq", + "chip name", 2 * sizeof(void *) + 2, "chip data", "domain name"); for (i = 1; i < nr_irqs; i++) { desc = irq_to_desc(i); @@ -667,7 +667,7 @@ static int virq_debug_show(struct seq_file *m, void *private) seq_printf(m, "%-15s ", p); data = irq_desc_get_chip_data(desc); - seq_printf(m, "0x%16p ", data); + seq_printf(m, data ? "0x%p " : " %p ", data); if (desc->irq_data.domain && desc->irq_data.domain->of_node) p = desc->irq_data.domain->of_node->full_name; -- cgit v0.10.2 From 89e004e78ff6317520d35bdb0d0174893ab49f17 Mon Sep 17 00:00:00 2001 From: Dong Aisheng Date: Thu, 5 Apr 2012 17:07:23 +0800 Subject: pinctrl: fix compile error if not select PINMUX support The pinctrl_register_mappings is defined in core.c, so change the dependent macro from CONFIG_MUX to CONFIG_PINCTRL. The compile error message is: drivers/pinctrl/core.c:886: error: redefinition of 'pinctrl_register_mappings' include/linux/pinctrl/machine.h:160: note: previous definition of 'pinctrl_register_mappings' was here make[2]: *** [drivers/pinctrl/core.o] Error 1 make[1]: *** [drivers/pinctrl] Error 2 make: *** [drivers] Error 2 Acked-by: Stephen Warren Signed-off-by: Dong Aisheng Signed-off-by: Linus Walleij diff --git a/include/linux/pinctrl/machine.h b/include/linux/pinctrl/machine.h index fee4349..d32eb8c 100644 --- a/include/linux/pinctrl/machine.h +++ b/include/linux/pinctrl/machine.h @@ -148,7 +148,7 @@ struct pinctrl_map { #define PIN_MAP_CONFIGS_GROUP_HOG_DEFAULT(dev, grp, cfgs) \ PIN_MAP_CONFIGS_GROUP(dev, PINCTRL_STATE_DEFAULT, dev, grp, cfgs) -#ifdef CONFIG_PINMUX +#ifdef CONFIG_PINCTRL extern int pinctrl_register_mappings(struct pinctrl_map const *map, unsigned num_maps); -- cgit v0.10.2 From 6f11f6f1a0a717eb8bd0dadd101c4522b945c501 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Fri, 16 Mar 2012 14:54:23 -0600 Subject: pinctrl: include to prevent compile errors Macros in call ARRAY_SIZE(), the definition of which eventually calls BUILD_BUG_ON_ZERO(), which is defined in . Include that so that every .c file using the pinctrl macros doesn't have to do that itself. Signed-off-by: Stephen Warren Signed-off-by: Linus Walleij diff --git a/include/linux/pinctrl/machine.h b/include/linux/pinctrl/machine.h index d32eb8c..e4d1de7 100644 --- a/include/linux/pinctrl/machine.h +++ b/include/linux/pinctrl/machine.h @@ -12,6 +12,8 @@ #ifndef __LINUX_PINCTRL_MACHINE_H #define __LINUX_PINCTRL_MACHINE_H +#include + #include "pinctrl-state.h" enum pinctrl_map_type { -- cgit v0.10.2 From f84cc342b1999db11ece939e1d2bf0743eb4578b Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Fri, 16 Mar 2012 14:54:25 -0600 Subject: pinctrl: implement pinctrl_check_ops Most code assumes that the pinctrl ops are present. Validate this when registering a pinctrl driver. Remove the one place in the code that was checking whether one of these non-optional ops was present. Signed-off-by: Stephen Warren Signed-off-by: Linus Walleij diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index ec3b8cc..df6296c 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -908,10 +908,6 @@ static int pinctrl_groups_show(struct seq_file *s, void *what) const struct pinctrl_ops *ops = pctldev->desc->pctlops; unsigned selector = 0; - /* No grouping */ - if (!ops) - return 0; - mutex_lock(&pinctrl_mutex); seq_puts(s, "registered pin groups:\n"); @@ -1225,6 +1221,19 @@ static void pinctrl_remove_device_debugfs(struct pinctrl_dev *pctldev) #endif +static int pinctrl_check_ops(struct pinctrl_dev *pctldev) +{ + const struct pinctrl_ops *ops = pctldev->desc->pctlops; + + if (!ops || + !ops->list_groups || + !ops->get_group_name || + !ops->get_group_pins) + return -EINVAL; + + return 0; +} + /** * pinctrl_register() - register a pin controller device * @pctldesc: descriptor for this pin controller @@ -1256,6 +1265,14 @@ struct pinctrl_dev *pinctrl_register(struct pinctrl_desc *pctldesc, INIT_LIST_HEAD(&pctldev->gpio_ranges); pctldev->dev = dev; + /* check core ops for sanity */ + ret = pinctrl_check_ops(pctldev); + if (ret) { + pr_err("%s pinctrl ops lacks necessary functions\n", + pctldesc->name); + goto out_err; + } + /* If we're implementing pinmuxing, check the ops for sanity */ if (pctldesc->pmxops) { ret = pinmux_check_ops(pctldev); -- cgit v0.10.2 From 56806555de5485d6786bf0f8df01b8ed9fc5d006 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Tue, 10 Apr 2012 23:37:22 -0600 Subject: regmap: fix compile errors in regmap-irq.c due to stride changes Commit f01ee60fffa4 ("regmap: implement register striding") caused the compile errors below. Fix them. drivers/base/regmap/regmap-irq.c: In function 'regmap_irq_sync_unlock': drivers/base/regmap/regmap-irq.c:62:12: error: 'map' undeclared (first use in this function) drivers/base/regmap/regmap-irq.c:62:12: note: each undeclared identifier is reported only once for each function it appears in drivers/base/regmap/regmap-irq.c: In function 'regmap_irq_enable': drivers/base/regmap/regmap-irq.c:77:37: error: 'map' undeclared (first use in this function) drivers/base/regmap/regmap-irq.c: In function 'regmap_irq_disable': drivers/base/regmap/regmap-irq.c:85:37: error: 'map' undeclared (first use in this function) Signed-off-by: Stephen Warren Signed-off-by: Mark Brown diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c index 56b8136..fc69d29 100644 --- a/drivers/base/regmap/regmap-irq.c +++ b/drivers/base/regmap/regmap-irq.c @@ -50,6 +50,7 @@ static void regmap_irq_lock(struct irq_data *data) static void regmap_irq_sync_unlock(struct irq_data *data) { struct regmap_irq_chip_data *d = irq_data_get_irq_chip_data(data); + struct regmap *map = d->map; int i, ret; /* @@ -59,7 +60,7 @@ static void regmap_irq_sync_unlock(struct irq_data *data) */ for (i = 0; i < d->chip->num_regs; i++) { ret = regmap_update_bits(d->map, d->chip->mask_base + - (i * map->map->reg_stride), + (i * map->reg_stride), d->mask_buf_def[i], d->mask_buf[i]); if (ret != 0) dev_err(d->map->dev, "Failed to sync masks in %x\n", @@ -72,6 +73,7 @@ static void regmap_irq_sync_unlock(struct irq_data *data) static void regmap_irq_enable(struct irq_data *data) { struct regmap_irq_chip_data *d = irq_data_get_irq_chip_data(data); + struct regmap *map = d->map; const struct regmap_irq *irq_data = irq_to_regmap_irq(d, data->irq); d->mask_buf[irq_data->reg_offset / map->reg_stride] &= ~irq_data->mask; @@ -80,6 +82,7 @@ static void regmap_irq_enable(struct irq_data *data) static void regmap_irq_disable(struct irq_data *data) { struct regmap_irq_chip_data *d = irq_data_get_irq_chip_data(data); + struct regmap *map = d->map; const struct regmap_irq *irq_data = irq_to_regmap_irq(d, data->irq); d->mask_buf[irq_data->reg_offset / map->reg_stride] |= irq_data->mask; -- cgit v0.10.2 From 6069a4c988d75c0fb309fa7da0909df2a222a65e Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Mon, 30 Jan 2012 11:43:52 -0800 Subject: vgaarb.h: fix build warnings Fix build warnings by providing a struct stub since no fields of the struct are used: include/linux/vgaarb.h:66:9: warning: 'struct pci_dev' declared inside parameter list include/linux/vgaarb.h:66:9: warning: its scope is only this definition or declaration, which is probably not what you want include/linux/vgaarb.h:99:34: warning: 'struct pci_dev' declared inside parameter list include/linux/vgaarb.h:109:6: warning: 'struct pci_dev' declared inside parameter list include/linux/vgaarb.h:121:8: warning: 'struct pci_dev' declared inside parameter list include/linux/vgaarb.h:140:37: warning: 'struct pci_dev' declared inside parameter list Signed-off-by: Randy Dunlap Signed-off-by: Dave Airlie diff --git a/include/linux/vgaarb.h b/include/linux/vgaarb.h index 9c3120d..b572f80 100644 --- a/include/linux/vgaarb.h +++ b/include/linux/vgaarb.h @@ -47,6 +47,8 @@ */ #define VGA_DEFAULT_DEVICE (NULL) +struct pci_dev; + /* For use by clients */ /** -- cgit v0.10.2 From 46783150a6552f9513f08e62cfcc07125d6e502b Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 10 Apr 2012 12:14:27 -0400 Subject: drm/radeon: only add the mm i2c bus if the hw_i2c module param is set It seems it can corrupt the monitor EDID in certain cases on certain boards when running sensors detect. It's rarely used anyway outside of AIW boards. http://lists.lm-sensors.org/pipermail/lm-sensors/2012-April/035847.html http://lists.freedesktop.org/archives/xorg/2011-January/052239.html Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Acked-by: Jean Delvare Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/radeon_i2c.c b/drivers/gpu/drm/radeon/radeon_i2c.c index 85bcfc8..3edec1c 100644 --- a/drivers/gpu/drm/radeon/radeon_i2c.c +++ b/drivers/gpu/drm/radeon/radeon_i2c.c @@ -900,6 +900,10 @@ struct radeon_i2c_chan *radeon_i2c_create(struct drm_device *dev, struct radeon_i2c_chan *i2c; int ret; + /* don't add the mm_i2c bus unless hw_i2c is enabled */ + if (rec->mm_i2c && (radeon_hw_i2c == 0)) + return NULL; + i2c = kzalloc(sizeof(struct radeon_i2c_chan), GFP_KERNEL); if (i2c == NULL) return NULL; -- cgit v0.10.2 From 7d28e3eaa1a8e951251b942e7220f97114bd73b9 Mon Sep 17 00:00:00 2001 From: Jonas Aaberg Date: Thu, 22 Dec 2011 09:22:56 +0100 Subject: ARM: ux500: wake secondary cpu via resched Wake secondary cpu via resched instead of "Unknown IPI message 0x1" Signed-off-by: Jonas Aaberg Reviewed-by: Rickard Andersson Signed-off-by: Linus Walleij diff --git a/arch/arm/mach-ux500/platsmp.c b/arch/arm/mach-ux500/platsmp.c index d2058ef..eff5842 100644 --- a/arch/arm/mach-ux500/platsmp.c +++ b/arch/arm/mach-ux500/platsmp.c @@ -99,7 +99,7 @@ int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle) */ write_pen_release(cpu_logical_map(cpu)); - gic_raise_softirq(cpumask_of(cpu), 1); + smp_send_reschedule(cpu); timeout = jiffies + (1 * HZ); while (time_before(jiffies, timeout)) { -- cgit v0.10.2 From 0a2da9b2ef2ef76c09397597f260245b020e6522 Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Wed, 11 Apr 2012 11:45:06 +0200 Subject: fuse: allow nanosecond granularity Derrik Pates reports that an utimensat with a NULL argument results in the current time being sent from the kernel with 1 second granularity. Reported-by: Derrik Pates Signed-off-by: Miklos Szeredi diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 64cf8d0..c9a0c97 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -947,6 +947,7 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent) sb->s_magic = FUSE_SUPER_MAGIC; sb->s_op = &fuse_super_operations; sb->s_maxbytes = MAX_LFS_FILESIZE; + sb->s_time_gran = 1; sb->s_export_op = &fuse_export_operations; file = fget(d.fd); -- cgit v0.10.2 From 6a562e3daee217ce99fe0e31150acd89a5b22606 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Mon, 9 Apr 2012 21:10:38 +0200 Subject: Revert "drm/i915: reenable gmbus on gen3+ again" This reverts commit c3dfefa0a6d235bd465309e12f4c56ea16e71111. gmbus in 3.4 has simply too many known issues: - gmbus is too noisy, we need to rework the logging: https://bugs.freedesktop.org/show_bug.cgi?id=48248 - zero-length writes cause an OOPS, and they are userspace-triggerable: https://lkml.org/lkml/2012/3/30/176 - same for zero-length reads: https://bugs.freedesktop.org/show_bug.cgi?id=48269 We can try again for 3.5. Acked-by: Chris Wilson Signed-Off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c index 601c86e..8fdc957 100644 --- a/drivers/gpu/drm/i915/intel_i2c.c +++ b/drivers/gpu/drm/i915/intel_i2c.c @@ -390,7 +390,7 @@ int intel_setup_gmbus(struct drm_device *dev) bus->has_gpio = intel_gpio_setup(bus, i); /* XXX force bit banging until GMBUS is fully debugged */ - if (bus->has_gpio && IS_GEN2(dev)) + if (bus->has_gpio) bus->force_bit = true; } -- cgit v0.10.2 From 27c1cbd06a7620b354cbb363834f3bb8df4f410d Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Mon, 9 Apr 2012 13:59:46 +0100 Subject: drm/i915/ringbuffer: Exclude last 2 cachlines of ring on 845g The 845g shares the errata with i830 whereby executing a command within 2 cachelines of the end of the ringbuffer may cause a GPU hang. Signed-off-by: Chris Wilson Cc: stable@kernel.org Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index e25581a..f75806e 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -1038,7 +1038,7 @@ int intel_init_ring_buffer(struct drm_device *dev, * of the buffer. */ ring->effective_size = ring->size; - if (IS_I830(ring->dev)) + if (IS_I830(ring->dev) || IS_845G(ring->dev)) ring->effective_size -= 128; return 0; -- cgit v0.10.2 From 80e829fade4eea5f07c410df6a551c42e2d0ca9c Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Sat, 31 Mar 2012 11:21:57 +0200 Subject: drm/i915: implement ColorBlt w/a According to an internal workaround master list, we need to set bit 5 of register 9400 to avoid issues with color blits. Testing shows that this seems to fix the blitter hangs when fbc is enabled on snb, thanks to Chris Wilson for figuring this out. Tested-by: Chris Wilson Tested-by: Michael "brot" Groh Acked-by: Ben Widawsky Signed-Off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 2abf4eb..b4bb1ef 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3728,6 +3728,9 @@ #define GT_FIFO_FREE_ENTRIES 0x120008 #define GT_FIFO_NUM_RESERVED_ENTRIES 20 +#define GEN6_UCGCTL1 0x9400 +# define GEN6_BLBUNIT_CLOCK_GATE_DISABLE (1 << 5) + #define GEN6_UCGCTL2 0x9404 # define GEN6_RCZUNIT_CLOCK_GATE_DISABLE (1 << 13) # define GEN6_RCPBUNIT_CLOCK_GATE_DISABLE (1 << 12) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index f446e66..bae38ac 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8556,6 +8556,10 @@ static void gen6_init_clock_gating(struct drm_device *dev) I915_WRITE(WM2_LP_ILK, 0); I915_WRITE(WM1_LP_ILK, 0); + I915_WRITE(GEN6_UCGCTL1, + I915_READ(GEN6_UCGCTL1) | + GEN6_BLBUNIT_CLOCK_GATE_DISABLE); + /* According to the BSpec vol1g, bit 12 (RCPBUNIT) clock * gating disable must be set. Failure to set it results in * flickering pixels due to Z write ordering failures after -- cgit v0.10.2 From 912093bc7c08f59e97faed2c0269e1e5429dcd58 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 11 Apr 2012 14:03:41 +0200 Subject: ALSA: hda/realtek - Add a few ALC882 model strings back Since there are still many Acer models that might not be covered by the current fixup table, let's add back a few typical model names so that user can test the fixup without recompiling. Signed-off-by: Takashi Iwai diff --git a/Documentation/sound/alsa/HD-Audio-Models.txt b/Documentation/sound/alsa/HD-Audio-Models.txt index d97d992..03f7897 100644 --- a/Documentation/sound/alsa/HD-Audio-Models.txt +++ b/Documentation/sound/alsa/HD-Audio-Models.txt @@ -43,7 +43,9 @@ ALC680 ALC882/883/885/888/889 ====================== - N/A + acer-aspire-4930g Acer Aspire 4930G/5930G/6530G/6930G/7730G + acer-aspire-8930g Acer Aspire 8330G/6935G + acer-aspire Acer Aspire others ALC861/660 ========== diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 9917e55..e7b2b83 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -5399,6 +5399,13 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = { {} }; +static const struct alc_model_fixup alc882_fixup_models[] = { + {.id = ALC882_FIXUP_ACER_ASPIRE_4930G, .name = "acer-aspire-4930g"}, + {.id = ALC882_FIXUP_ACER_ASPIRE_8930G, .name = "acer-aspire-8930g"}, + {.id = ALC883_FIXUP_ACER_EAPD, .name = "acer-aspire"}, + {} +}; + /* * BIOS auto configuration */ @@ -5439,7 +5446,8 @@ static int patch_alc882(struct hda_codec *codec) if (err < 0) goto error; - alc_pick_fixup(codec, NULL, alc882_fixup_tbl, alc882_fixups); + alc_pick_fixup(codec, alc882_fixup_models, alc882_fixup_tbl, + alc882_fixups); alc_apply_fixup(codec, ALC_FIXUP_ACT_PRE_PROBE); alc_auto_parse_customize_define(codec); -- cgit v0.10.2 From cd10502b8276b0486850685383243cbd26d50c8d Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Wed, 11 Apr 2012 14:28:04 +0200 Subject: [S390] drivers/s390/block/dasd_eckd.c: add missing dasd_sfree_request Extend some error paths to call dasd_sfree_request as done earlier in the function. The error-handling code is also moved to the end of the function. Signed-off-by: Julia Lawall Signed-off-by: Martin Schwidefsky diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index c21871a..bc2e8a7 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -2844,6 +2844,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track( sector_t recid, trkid; unsigned int offs; unsigned int count, count_to_trk_end; + int ret; basedev = block->base; if (rq_data_dir(req) == READ) { @@ -2884,8 +2885,8 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track( itcw = itcw_init(cqr->data, itcw_size, itcw_op, 0, ctidaw, 0); if (IS_ERR(itcw)) { - dasd_sfree_request(cqr, startdev); - return ERR_PTR(-EINVAL); + ret = -EINVAL; + goto out_error; } cqr->cpaddr = itcw_get_tcw(itcw); if (prepare_itcw(itcw, first_trk, last_trk, @@ -2897,8 +2898,8 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track( /* Clock not in sync and XRC is enabled. * Try again later. */ - dasd_sfree_request(cqr, startdev); - return ERR_PTR(-EAGAIN); + ret = -EAGAIN; + goto out_error; } len_to_track_end = 0; /* @@ -2937,8 +2938,10 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track( tidaw_flags = 0; last_tidaw = itcw_add_tidaw(itcw, tidaw_flags, dst, part_len); - if (IS_ERR(last_tidaw)) - return ERR_PTR(-EINVAL); + if (IS_ERR(last_tidaw)) { + ret = -EINVAL; + goto out_error; + } dst += part_len; } } @@ -2947,8 +2950,10 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track( dst = page_address(bv->bv_page) + bv->bv_offset; last_tidaw = itcw_add_tidaw(itcw, 0x00, dst, bv->bv_len); - if (IS_ERR(last_tidaw)) - return ERR_PTR(-EINVAL); + if (IS_ERR(last_tidaw)) { + ret = -EINVAL; + goto out_error; + } } } last_tidaw->flags |= TIDAW_FLAGS_LAST; @@ -2968,6 +2973,9 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track( cqr->buildclk = get_clock(); cqr->status = DASD_CQR_FILLED; return cqr; +out_error: + dasd_sfree_request(cqr, startdev); + return ERR_PTR(ret); } static struct dasd_ccw_req *dasd_eckd_build_cp(struct dasd_device *startdev, -- cgit v0.10.2 From dae1df42f544ce3969d437dfa835169210593240 Mon Sep 17 00:00:00 2001 From: Dennis Chen Date: Wed, 11 Apr 2012 14:28:05 +0200 Subject: [S390] s390/char/vmur.c: fix memory leak This patch is used to fix a memory leak issue in s390/char/vmur.c. A character device instance is allocated by cdev_alloc, the cdev_del will not free that space if cdev_init is applied before. Signed-off-by: Dennis Chen Signed-off-by: Martin Schwidefsky diff --git a/drivers/s390/char/vmur.c b/drivers/s390/char/vmur.c index 85f4a9a..73bef0b 100644 --- a/drivers/s390/char/vmur.c +++ b/drivers/s390/char/vmur.c @@ -903,7 +903,7 @@ static int ur_set_online(struct ccw_device *cdev) goto fail_urdev_put; } - cdev_init(urd->char_device, &ur_fops); + urd->char_device->ops = &ur_fops; urd->char_device->dev = MKDEV(major, minor); urd->char_device->owner = ur_fops.owner; -- cgit v0.10.2 From b785e0d06ac551f80204742682be3218158234d1 Mon Sep 17 00:00:00 2001 From: Michael Holzheu Date: Wed, 11 Apr 2012 14:28:06 +0200 Subject: [S390] kernel: Use local_irq_save() for memcpy_real() Currently in the memcpy_real() function interrupts are disabled with __arch_local_irq_stnsm(). In order to notify lockdep that interrupts are disabled, with this patch local_irq_save() is used instead. The function __arch_local_irq_stnsm() is still used for switching to real mode. Reviewed-by: Heiko Carstens Signed-off-by: Michael Holzheu Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/mm/maccess.c b/arch/s390/mm/maccess.c index 7bb15fc..e1335dc 100644 --- a/arch/s390/mm/maccess.c +++ b/arch/s390/mm/maccess.c @@ -61,21 +61,14 @@ long probe_kernel_write(void *dst, const void *src, size_t size) return copied < 0 ? -EFAULT : 0; } -/* - * Copy memory in real mode (kernel to kernel) - */ -int memcpy_real(void *dest, void *src, size_t count) +static int __memcpy_real(void *dest, void *src, size_t count) { register unsigned long _dest asm("2") = (unsigned long) dest; register unsigned long _len1 asm("3") = (unsigned long) count; register unsigned long _src asm("4") = (unsigned long) src; register unsigned long _len2 asm("5") = (unsigned long) count; - unsigned long flags; int rc = -EFAULT; - if (!count) - return 0; - flags = __arch_local_irq_stnsm(0xf8UL); asm volatile ( "0: mvcle %1,%2,0x0\n" "1: jo 0b\n" @@ -86,7 +79,23 @@ int memcpy_real(void *dest, void *src, size_t count) "+d" (_len2), "=m" (*((long *) dest)) : "m" (*((long *) src)) : "cc", "memory"); - arch_local_irq_restore(flags); + return rc; +} + +/* + * Copy memory in real mode (kernel to kernel) + */ +int memcpy_real(void *dest, void *src, size_t count) +{ + unsigned long flags; + int rc; + + if (!count) + return 0; + local_irq_save(flags); + __arch_local_irq_stnsm(0xfbUL); + rc = __memcpy_real(dest, src, count); + local_irq_restore(flags); return rc; } -- cgit v0.10.2 From cd94154cc6a28dd9dc271042c1a59c08d26da886 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 11 Apr 2012 14:28:07 +0200 Subject: [S390] fix tlb flushing for page table pages Git commit 36409f6353fc2d7b6516e631415f938eadd92ffa "use generic RCU page-table freeing code" introduced a tlb flushing bug. Partially revert the above git commit and go back to s390 specific page table flush code. For s390 the TLB can contain three types of entries, "normal" TLB page-table entries, TLB combined region-and-segment-table (CRST) entries and real-space entries. Linux does not use real-space entries which leaves normal TLB entries and CRST entries. The CRST entries are intermediate steps in the page-table translation called translation paths. For example a 4K page access in a three-level page table setup will create two CRST TLB entries and one page-table TLB entry. The advantage of that approach is that a page access next to the previous one can reuse the CRST entries and needs just a single read from memory to create the page-table TLB entry. The disadvantage is that the TLB flushing rules are more complicated, before any page-table may be freed the TLB needs to be flushed. In short: the generic RCU page-table freeing code is incorrect for the CRST entries, in particular the check for mm_users < 2 is troublesome. This is applicable to 3.0+ kernels. Cc: Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 2b7c0fb..9015060 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -90,7 +90,6 @@ config S390 select HAVE_KERNEL_XZ select HAVE_ARCH_MUTEX_CPU_RELAX select HAVE_ARCH_JUMP_LABEL if !MARCH_G5 - select HAVE_RCU_TABLE_FREE if SMP select ARCH_SAVE_PAGE_KEYS if HIBERNATION select HAVE_MEMBLOCK select HAVE_MEMBLOCK_NODE_MAP diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h index 8eef9b5..78e3041 100644 --- a/arch/s390/include/asm/pgalloc.h +++ b/arch/s390/include/asm/pgalloc.h @@ -22,10 +22,7 @@ void crst_table_free(struct mm_struct *, unsigned long *); unsigned long *page_table_alloc(struct mm_struct *, unsigned long); void page_table_free(struct mm_struct *, unsigned long *); -#ifdef CONFIG_HAVE_RCU_TABLE_FREE void page_table_free_rcu(struct mmu_gather *, unsigned long *); -void __tlb_remove_table(void *_table); -#endif static inline void clear_table(unsigned long *s, unsigned long val, size_t n) { diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h index c687a2c..775a5ee 100644 --- a/arch/s390/include/asm/tlb.h +++ b/arch/s390/include/asm/tlb.h @@ -30,14 +30,10 @@ struct mmu_gather { struct mm_struct *mm; -#ifdef CONFIG_HAVE_RCU_TABLE_FREE struct mmu_table_batch *batch; -#endif unsigned int fullmm; - unsigned int need_flush; }; -#ifdef CONFIG_HAVE_RCU_TABLE_FREE struct mmu_table_batch { struct rcu_head rcu; unsigned int nr; @@ -49,7 +45,6 @@ struct mmu_table_batch { extern void tlb_table_flush(struct mmu_gather *tlb); extern void tlb_remove_table(struct mmu_gather *tlb, void *table); -#endif static inline void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, @@ -57,29 +52,20 @@ static inline void tlb_gather_mmu(struct mmu_gather *tlb, { tlb->mm = mm; tlb->fullmm = full_mm_flush; - tlb->need_flush = 0; -#ifdef CONFIG_HAVE_RCU_TABLE_FREE tlb->batch = NULL; -#endif if (tlb->fullmm) __tlb_flush_mm(mm); } static inline void tlb_flush_mmu(struct mmu_gather *tlb) { - if (!tlb->need_flush) - return; - tlb->need_flush = 0; - __tlb_flush_mm(tlb->mm); -#ifdef CONFIG_HAVE_RCU_TABLE_FREE tlb_table_flush(tlb); -#endif } static inline void tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end) { - tlb_flush_mmu(tlb); + tlb_table_flush(tlb); } /* @@ -105,10 +91,8 @@ static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page) static inline void pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, unsigned long address) { -#ifdef CONFIG_HAVE_RCU_TABLE_FREE if (!tlb->fullmm) return page_table_free_rcu(tlb, (unsigned long *) pte); -#endif page_table_free(tlb->mm, (unsigned long *) pte); } @@ -125,10 +109,8 @@ static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd, #ifdef __s390x__ if (tlb->mm->context.asce_limit <= (1UL << 31)) return; -#ifdef CONFIG_HAVE_RCU_TABLE_FREE if (!tlb->fullmm) return tlb_remove_table(tlb, pmd); -#endif crst_table_free(tlb->mm, (unsigned long *) pmd); #endif } @@ -146,10 +128,8 @@ static inline void pud_free_tlb(struct mmu_gather *tlb, pud_t *pud, #ifdef __s390x__ if (tlb->mm->context.asce_limit <= (1UL << 42)) return; -#ifdef CONFIG_HAVE_RCU_TABLE_FREE if (!tlb->fullmm) return tlb_remove_table(tlb, pud); -#endif crst_table_free(tlb->mm, (unsigned long *) pud); #endif } diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c index 373adf6..6e765bf 100644 --- a/arch/s390/mm/pgtable.c +++ b/arch/s390/mm/pgtable.c @@ -678,8 +678,6 @@ void page_table_free(struct mm_struct *mm, unsigned long *table) } } -#ifdef CONFIG_HAVE_RCU_TABLE_FREE - static void __page_table_free_rcu(void *table, unsigned bit) { struct page *page; @@ -733,7 +731,66 @@ void __tlb_remove_table(void *_table) free_pages((unsigned long) table, ALLOC_ORDER); } -#endif +static void tlb_remove_table_smp_sync(void *arg) +{ + /* Simply deliver the interrupt */ +} + +static void tlb_remove_table_one(void *table) +{ + /* + * This isn't an RCU grace period and hence the page-tables cannot be + * assumed to be actually RCU-freed. + * + * It is however sufficient for software page-table walkers that rely + * on IRQ disabling. See the comment near struct mmu_table_batch. + */ + smp_call_function(tlb_remove_table_smp_sync, NULL, 1); + __tlb_remove_table(table); +} + +static void tlb_remove_table_rcu(struct rcu_head *head) +{ + struct mmu_table_batch *batch; + int i; + + batch = container_of(head, struct mmu_table_batch, rcu); + + for (i = 0; i < batch->nr; i++) + __tlb_remove_table(batch->tables[i]); + + free_page((unsigned long)batch); +} + +void tlb_table_flush(struct mmu_gather *tlb) +{ + struct mmu_table_batch **batch = &tlb->batch; + + if (*batch) { + __tlb_flush_mm(tlb->mm); + call_rcu_sched(&(*batch)->rcu, tlb_remove_table_rcu); + *batch = NULL; + } +} + +void tlb_remove_table(struct mmu_gather *tlb, void *table) +{ + struct mmu_table_batch **batch = &tlb->batch; + + if (*batch == NULL) { + *batch = (struct mmu_table_batch *) + __get_free_page(GFP_NOWAIT | __GFP_NOWARN); + if (*batch == NULL) { + __tlb_flush_mm(tlb->mm); + tlb_remove_table_one(table); + return; + } + (*batch)->nr = 0; + } + (*batch)->tables[(*batch)->nr++] = table; + if ((*batch)->nr == MAX_TABLE_BATCH) + tlb_table_flush(tlb); +} /* * switch on pgstes for its userspace process (for kvm) -- cgit v0.10.2 From ac2ac6e852716448d962033a041182cd1e2d3c01 Mon Sep 17 00:00:00 2001 From: Michael Holzheu Date: Wed, 11 Apr 2012 14:28:08 +0200 Subject: [S390] update default configuration Add TASKSTATS options, enable CRASH_DUMP, and regenerate defconfig file with "make savedefconfig". Signed-off-by: Michael Holzheu Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/defconfig b/arch/s390/defconfig index 6cf8e26..1957a9d 100644 --- a/arch/s390/defconfig +++ b/arch/s390/defconfig @@ -1,8 +1,12 @@ CONFIG_EXPERIMENTAL=y CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y +CONFIG_FHANDLE=y +CONFIG_TASKSTATS=y +CONFIG_TASK_DELAY_ACCT=y +CONFIG_TASK_XACCT=y +CONFIG_TASK_IO_ACCOUNTING=y CONFIG_AUDIT=y -CONFIG_RCU_TRACE=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y CONFIG_CGROUPS=y @@ -14,16 +18,22 @@ CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y CONFIG_CGROUP_SCHED=y CONFIG_RT_GROUP_SCHED=y CONFIG_BLK_CGROUP=y +CONFIG_NAMESPACES=y CONFIG_BLK_DEV_INITRD=y -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set +CONFIG_RD_BZIP2=y +CONFIG_RD_LZMA=y +CONFIG_RD_XZ=y +CONFIG_RD_LZO=y +CONFIG_EXPERT=y # CONFIG_COMPAT_BRK is not set -CONFIG_SLAB=y CONFIG_PROFILING=y CONFIG_OPROFILE=y CONFIG_KPROBES=y CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODVERSIONS=y +CONFIG_PARTITION_ADVANCED=y +CONFIG_IBM_PARTITION=y CONFIG_DEFAULT_DEADLINE=y CONFIG_NO_HZ=y CONFIG_HIGH_RES_TIMERS=y @@ -34,18 +44,15 @@ CONFIG_KSM=y CONFIG_BINFMT_MISC=m CONFIG_CMM=m CONFIG_HZ_100=y -CONFIG_KEXEC=y -CONFIG_PM=y +CONFIG_CRASH_DUMP=y CONFIG_HIBERNATION=y CONFIG_PACKET=y CONFIG_UNIX=y CONFIG_NET_KEY=y -CONFIG_AFIUCV=m CONFIG_INET=y CONFIG_IP_MULTICAST=y # CONFIG_INET_LRO is not set CONFIG_IPV6=y -CONFIG_NET_SCTPPROBE=m CONFIG_L2TP=m CONFIG_L2TP_DEBUGFS=m CONFIG_VLAN_8021Q=y @@ -84,15 +91,14 @@ CONFIG_SCSI_CONSTANTS=y CONFIG_SCSI_LOGGING=y CONFIG_SCSI_SCAN_ASYNC=y CONFIG_ZFCP=y -CONFIG_ZFCP_DIF=y CONFIG_NETDEVICES=y -CONFIG_DUMMY=m CONFIG_BONDING=m +CONFIG_DUMMY=m CONFIG_EQUALIZER=m CONFIG_TUN=m -CONFIG_NET_ETHERNET=y CONFIG_VIRTIO_NET=y CONFIG_RAW_DRIVER=m +CONFIG_VIRTIO_BALLOON=y CONFIG_EXT2_FS=y CONFIG_EXT3_FS=y # CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set @@ -103,27 +109,21 @@ CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_TMPFS_POSIX_ACL=y # CONFIG_NETWORK_FILESYSTEMS is not set -CONFIG_PARTITION_ADVANCED=y -CONFIG_IBM_PARTITION=y -CONFIG_DLM=m CONFIG_MAGIC_SYSRQ=y -CONFIG_DEBUG_KERNEL=y CONFIG_TIMER_STATS=y CONFIG_PROVE_LOCKING=y CONFIG_PROVE_RCU=y CONFIG_LOCK_STAT=y CONFIG_DEBUG_LOCKDEP=y -CONFIG_DEBUG_SPINLOCK_SLEEP=y CONFIG_DEBUG_LIST=y CONFIG_DEBUG_NOTIFIERS=y -# CONFIG_RCU_CPU_STALL_DETECTOR is not set +CONFIG_RCU_TRACE=y CONFIG_KPROBES_SANITY_TEST=y CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y CONFIG_CPU_NOTIFIER_ERROR_INJECT=m CONFIG_LATENCYTOP=y -CONFIG_SYSCTL_SYSCALL_CHECK=y CONFIG_DEBUG_PAGEALLOC=y -# CONFIG_FTRACE is not set +CONFIG_BLK_DEV_IO_TRACE=y # CONFIG_STRICT_DEVMEM is not set CONFIG_CRYPTO_NULL=m CONFIG_CRYPTO_CRYPTD=m @@ -173,4 +173,3 @@ CONFIG_CRYPTO_SHA512_S390=m CONFIG_CRYPTO_DES_S390=m CONFIG_CRYPTO_AES_S390=m CONFIG_CRC7=m -CONFIG_VIRTIO_BALLOON=y -- cgit v0.10.2 From 7968ca814801b403ebd0829eda7a92e3eef23b45 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 11 Apr 2012 14:28:09 +0200 Subject: [S390] irq: simple coding style change Use braces for if/else/list_for_each_entry bodies if the body consists of more than a single line. Otherwise I get confused and check if there is something broken whenever I see these code snippets. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c index 1c2cdd5..8a22c27 100644 --- a/arch/s390/kernel/irq.c +++ b/arch/s390/kernel/irq.c @@ -118,9 +118,10 @@ asmlinkage void do_softirq(void) "a" (__do_softirq) : "0", "1", "2", "3", "4", "5", "14", "cc", "memory" ); - } else + } else { /* We are already on the async stack. */ __do_softirq(); + } } local_irq_restore(flags); @@ -192,11 +193,12 @@ int unregister_external_interrupt(u16 code, ext_int_handler_t handler) int index = ext_hash(code); spin_lock_irqsave(&ext_int_hash_lock, flags); - list_for_each_entry_rcu(p, &ext_int_hash[index], entry) + list_for_each_entry_rcu(p, &ext_int_hash[index], entry) { if (p->code == code && p->handler == handler) { list_del_rcu(&p->entry); kfree_rcu(p, rcu); } + } spin_unlock_irqrestore(&ext_int_hash_lock, flags); return 0; } @@ -211,9 +213,10 @@ void __irq_entry do_extint(struct pt_regs *regs, struct ext_code ext_code, old_regs = set_irq_regs(regs); irq_enter(); - if (S390_lowcore.int_clock >= S390_lowcore.clock_comparator) + if (S390_lowcore.int_clock >= S390_lowcore.clock_comparator) { /* Serve timer interrupts first. */ clock_comparator_work(); + } kstat_cpu(smp_processor_id()).irqs[EXTERNAL_INTERRUPT]++; if (ext_code.code != 0x1004) __get_cpu_var(s390_idle).nohz_delay = 1; -- cgit v0.10.2 From af0ee94e541e366ee4b84c6d476c88fd633fe80a Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 11 Apr 2012 14:28:10 +0200 Subject: [S390] cpum_cf: get rid of compile warnings Fix these: arch/s390/kernel/perf_cpum_cf.c:180:3: warning: format '%lx' expects argument of type 'long unsigned int', but argument 2 has type 'int' [-Wformat] arch/s390/kernel/perf_cpum_cf.c: In function 'cpumf_pmu_disable': arch/s390/kernel/perf_cpum_cf.c:205:3: warning: format '%lx' expects argument of type 'long unsigned int', but argument 2 has type 'int' [-Wformat] Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c index 4640508..cb019f4 100644 --- a/arch/s390/kernel/perf_cpum_cf.c +++ b/arch/s390/kernel/perf_cpum_cf.c @@ -178,7 +178,7 @@ static void cpumf_pmu_enable(struct pmu *pmu) err = lcctl(cpuhw->state); if (err) { pr_err("Enabling the performance measuring unit " - "failed with rc=%lx\n", err); + "failed with rc=%x\n", err); return; } @@ -203,7 +203,7 @@ static void cpumf_pmu_disable(struct pmu *pmu) err = lcctl(inactive); if (err) { pr_err("Disabling the performance measuring unit " - "failed with rc=%lx\n", err); + "failed with rc=%x\n", err); return; } -- cgit v0.10.2 From 37e37c20ab2dbccdc7a7fa5922e182a51adf50f6 Mon Sep 17 00:00:00 2001 From: Michael Holzheu Date: Wed, 11 Apr 2012 14:28:11 +0200 Subject: [S390] Fix stfle() lowcore protection problem The stfle() function writes into lowcore memory when stfl_fac_list is initialized with "S390_lowcore.stfl_fac_list = 0". For older compilers this triggers a lowcore exception. With newer compilers and "-OXX" compile option the bug does not show up because the "S390_lowcore.stfl_fac_list" initialization is removed by the compiler. The reason for thatis the incorrect "=m" (S390_lowcore.stfl_fac_list) constraint in the stfl inline assembly. The following shows the disassembly of the stfle() optimized code that is inlined in the lgr_info_get() function: 000000000011325c : 11325c: eb 9f f0 60 00 24 stmg %r9,%r15,96(%r15) 113262: c0 d0 00 29 0e 47 larl %r13,634ef0 113268: a7 f1 3f c0 tml %r15,16320 11326c: b9 04 00 ef lgr %r14,%r15 113270: a7 84 00 01 je 113272 113274: a7 fb ff c0 aghi %r15,-64 113278: b9 04 00 c2 lgr %r12,%r2 11327c: a7 29 00 01 lghi %r2,1 113280: e3 e0 f0 98 00 24 stg %r14,152(%r15) 113286: d7 97 c0 00 c0 00 xc 0(152,%r12),0(%r12) 11328c: c0 e5 00 28 db 4c brasl %r14,62e924 113292: b2 b1 00 00 stfl 0 To fix the problem we now clear the S390_lowcore.stfl_fac_list at startup in "head.S" for all machine types before lowcore protection is enabled. In addition to that the "=m" constraint is replaced by "+m". Signed-off-by: Michael Holzheu Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/include/asm/facility.h b/arch/s390/include/asm/facility.h index 1e5b27e..2ee66a6 100644 --- a/arch/s390/include/asm/facility.h +++ b/arch/s390/include/asm/facility.h @@ -38,12 +38,11 @@ static inline void stfle(u64 *stfle_fac_list, int size) unsigned long nr; preempt_disable(); - S390_lowcore.stfl_fac_list = 0; asm volatile( " .insn s,0xb2b10000,0(0)\n" /* stfl */ "0:\n" EX_TABLE(0b, 0b) - : "=m" (S390_lowcore.stfl_fac_list)); + : "+m" (S390_lowcore.stfl_fac_list)); nr = 4; /* bytes stored by stfl */ memcpy(stfle_fac_list, &S390_lowcore.stfl_fac_list, 4); if (S390_lowcore.stfl_fac_list & 0x01000000) { diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S index c27a072..adccd90 100644 --- a/arch/s390/kernel/head.S +++ b/arch/s390/kernel/head.S @@ -474,9 +474,9 @@ ENTRY(startup_kdump) stck __LC_LAST_UPDATE_CLOCK spt 5f-.LPG0(%r13) mvc __LC_LAST_UPDATE_TIMER(8),5f-.LPG0(%r13) + xc __LC_STFL_FAC_LIST(8),__LC_STFL_FAC_LIST #ifndef CONFIG_MARCH_G5 # check capabilities against MARCH_{G5,Z900,Z990,Z9_109,Z10} - xc __LC_STFL_FAC_LIST(8),__LC_STFL_FAC_LIST .insn s,0xb2b10000,__LC_STFL_FAC_LIST # store facility list tm __LC_STFL_FAC_LIST,0x01 # stfle available ? jz 0f -- cgit v0.10.2 From affbb420239695018941173b63bf70551ede8b93 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 11 Apr 2012 14:28:12 +0200 Subject: [S390] Fix compile error in swab.h The inline assembly in__arch_swab16p causes compile errors of the form: *error*: *invalid* '*asm*': operand number missing after %-*letter* The assembly uses the %O/%R notation but the first operand misses the operand number, it needs to be "%O1" instead of "%O". Reported-by: Gil Peleg Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/include/asm/swab.h b/arch/s390/include/asm/swab.h index 6bdee21..a3e4ebb 100644 --- a/arch/s390/include/asm/swab.h +++ b/arch/s390/include/asm/swab.h @@ -77,7 +77,7 @@ static inline __u16 __arch_swab16p(const __u16 *x) asm volatile( #ifndef __s390x__ - " icm %0,2,%O+1(%R1)\n" + " icm %0,2,%O1+1(%R1)\n" " ic %0,%1\n" : "=&d" (result) : "Q" (*x) : "cc"); #else /* __s390x__ */ -- cgit v0.10.2 From 996304bbea3d2a094b7ba54c3bd65d3fffeac57b Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Wed, 4 Apr 2012 01:01:20 +0000 Subject: bridge: Do not send queries on multicast group leaves As it stands the bridge IGMP snooping system will respond to group leave messages with queries for remaining membership. This is both unnecessary and undesirable. First of all any multicast routers present should be doing this rather than us. What's more the queries that we send may end up upsetting other multicast snooping swithces in the system that are buggy. In fact, we can simply remove the code that send these queries because the existing membership expiry mechanism doesn't rely on them anyway. So this patch simply removes all code associated with group queries in response to group leave messages. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index 702a1ae..27ca25e 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -241,7 +241,6 @@ static void br_multicast_group_expired(unsigned long data) hlist_del_rcu(&mp->hlist[mdb->ver]); mdb->size--; - del_timer(&mp->query_timer); call_rcu_bh(&mp->rcu, br_multicast_free_group); out: @@ -271,7 +270,6 @@ static void br_multicast_del_pg(struct net_bridge *br, rcu_assign_pointer(*pp, p->next); hlist_del_init(&p->mglist); del_timer(&p->timer); - del_timer(&p->query_timer); call_rcu_bh(&p->rcu, br_multicast_free_pg); if (!mp->ports && !mp->mglist && @@ -507,74 +505,6 @@ static struct sk_buff *br_multicast_alloc_query(struct net_bridge *br, return NULL; } -static void br_multicast_send_group_query(struct net_bridge_mdb_entry *mp) -{ - struct net_bridge *br = mp->br; - struct sk_buff *skb; - - skb = br_multicast_alloc_query(br, &mp->addr); - if (!skb) - goto timer; - - netif_rx(skb); - -timer: - if (++mp->queries_sent < br->multicast_last_member_count) - mod_timer(&mp->query_timer, - jiffies + br->multicast_last_member_interval); -} - -static void br_multicast_group_query_expired(unsigned long data) -{ - struct net_bridge_mdb_entry *mp = (void *)data; - struct net_bridge *br = mp->br; - - spin_lock(&br->multicast_lock); - if (!netif_running(br->dev) || !mp->mglist || - mp->queries_sent >= br->multicast_last_member_count) - goto out; - - br_multicast_send_group_query(mp); - -out: - spin_unlock(&br->multicast_lock); -} - -static void br_multicast_send_port_group_query(struct net_bridge_port_group *pg) -{ - struct net_bridge_port *port = pg->port; - struct net_bridge *br = port->br; - struct sk_buff *skb; - - skb = br_multicast_alloc_query(br, &pg->addr); - if (!skb) - goto timer; - - br_deliver(port, skb); - -timer: - if (++pg->queries_sent < br->multicast_last_member_count) - mod_timer(&pg->query_timer, - jiffies + br->multicast_last_member_interval); -} - -static void br_multicast_port_group_query_expired(unsigned long data) -{ - struct net_bridge_port_group *pg = (void *)data; - struct net_bridge_port *port = pg->port; - struct net_bridge *br = port->br; - - spin_lock(&br->multicast_lock); - if (!netif_running(br->dev) || hlist_unhashed(&pg->mglist) || - pg->queries_sent >= br->multicast_last_member_count) - goto out; - - br_multicast_send_port_group_query(pg); - -out: - spin_unlock(&br->multicast_lock); -} - static struct net_bridge_mdb_entry *br_multicast_get_group( struct net_bridge *br, struct net_bridge_port *port, struct br_ip *group, int hash) @@ -690,8 +620,6 @@ rehash: mp->addr = *group; setup_timer(&mp->timer, br_multicast_group_expired, (unsigned long)mp); - setup_timer(&mp->query_timer, br_multicast_group_query_expired, - (unsigned long)mp); hlist_add_head_rcu(&mp->hlist[mdb->ver], &mdb->mhash[hash]); mdb->size++; @@ -746,8 +674,6 @@ static int br_multicast_add_group(struct net_bridge *br, hlist_add_head(&p->mglist, &port->mglist); setup_timer(&p->timer, br_multicast_port_group_expired, (unsigned long)p); - setup_timer(&p->query_timer, br_multicast_port_group_query_expired, - (unsigned long)p); rcu_assign_pointer(*pp, p); @@ -1291,9 +1217,6 @@ static void br_multicast_leave_group(struct net_bridge *br, time_after(mp->timer.expires, time) : try_to_del_timer_sync(&mp->timer) >= 0)) { mod_timer(&mp->timer, time); - - mp->queries_sent = 0; - mod_timer(&mp->query_timer, now); } goto out; @@ -1310,9 +1233,6 @@ static void br_multicast_leave_group(struct net_bridge *br, time_after(p->timer.expires, time) : try_to_del_timer_sync(&p->timer) >= 0)) { mod_timer(&p->timer, time); - - p->queries_sent = 0; - mod_timer(&p->query_timer, now); } break; @@ -1681,7 +1601,6 @@ void br_multicast_stop(struct net_bridge *br) hlist_for_each_entry_safe(mp, p, n, &mdb->mhash[i], hlist[ver]) { del_timer(&mp->timer); - del_timer(&mp->query_timer); call_rcu_bh(&mp->rcu, br_multicast_free_group); } } diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index 0b67a63..e1d8822 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -82,9 +82,7 @@ struct net_bridge_port_group { struct hlist_node mglist; struct rcu_head rcu; struct timer_list timer; - struct timer_list query_timer; struct br_ip addr; - u32 queries_sent; }; struct net_bridge_mdb_entry @@ -94,10 +92,8 @@ struct net_bridge_mdb_entry struct net_bridge_port_group __rcu *ports; struct rcu_head rcu; struct timer_list timer; - struct timer_list query_timer; struct br_ip addr; bool mglist; - u32 queries_sent; }; struct net_bridge_mdb_htable -- cgit v0.10.2 From 87151b8689d890dfb495081f7be9b9e257f7a2df Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 10 Apr 2012 20:08:39 +0000 Subject: net: allow pskb_expand_head() to get maximum tailroom Marc Merlin reported many order-1 allocations failures in TX path on its wireless setup, that dont make any sense with MTU=1500 network, and non SG capable hardware. Turns out part of the problem comes from pskb_expand_head() not using ksize() to get exact head size given by kmalloc(). Doing the same thing than __alloc_skb() allows more tailroom in skb and can prevent future reallocations. As a bonus, struct skb_shared_info becomes cache line aligned. Reported-by: Marc MERLIN Tested-by: Marc MERLIN Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/core/skbuff.c b/net/core/skbuff.c index baf8d28..e598400 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -952,9 +952,11 @@ int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail, goto adjust_others; } - data = kmalloc(size + sizeof(struct skb_shared_info), gfp_mask); + data = kmalloc(size + SKB_DATA_ALIGN(sizeof(struct skb_shared_info)), + gfp_mask); if (!data) goto nodata; + size = SKB_WITH_OVERHEAD(ksize(data)); /* Copy only real data... and, alas, header. This should be * optimized for the cases when header is void. -- cgit v0.10.2 From a21d45726acacc963d8baddf74607d9b74e2b723 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 10 Apr 2012 20:30:48 +0000 Subject: tcp: avoid order-1 allocations on wifi and tx path Marc Merlin reported many order-1 allocations failures in TX path on its wireless setup, that dont make any sense with MTU=1500 network, and non SG capable hardware. After investigation, it turns out TCP uses sk_stream_alloc_skb() and used as a convention skb_tailroom(skb) to know how many bytes of data payload could be put in this skb (for non SG capable devices) Note : these skb used kmalloc-4096 (MTU=1500 + MAX_HEADER + sizeof(struct skb_shared_info) being above 2048) Later, mac80211 layer need to add some bytes at the tail of skb (IEEE80211_ENCRYPT_TAILROOM = 18 bytes) and since no more tailroom is available has to call pskb_expand_head() and request order-1 allocations. This patch changes sk_stream_alloc_skb() so that only sk->sk_prot->max_header bytes of headroom are reserved, and use a new skb field, avail_size to hold the data payload limit. This way, order-0 allocations done by TCP stack can leave more than 2 KB of tailroom and no more allocation is performed in mac80211 layer (or any layer needing some tailroom) avail_size is unioned with mark/dropcount, since mark will be set later in IP stack for output packets. Therefore, skb size is unchanged. Reported-by: Marc MERLIN Tested-by: Marc MERLIN Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 3337027..70a3f8d 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -481,6 +481,7 @@ struct sk_buff { union { __u32 mark; __u32 dropcount; + __u32 avail_size; }; sk_buff_data_t transport_header; @@ -1366,6 +1367,18 @@ static inline int skb_tailroom(const struct sk_buff *skb) } /** + * skb_availroom - bytes at buffer end + * @skb: buffer to check + * + * Return the number of bytes of free space at the tail of an sk_buff + * allocated by sk_stream_alloc() + */ +static inline int skb_availroom(const struct sk_buff *skb) +{ + return skb_is_nonlinear(skb) ? 0 : skb->avail_size - skb->len; +} + +/** * skb_reserve - adjust headroom * @skb: buffer to alter * @len: bytes to move diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 7758a83..a5daa21 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -701,11 +701,12 @@ struct sk_buff *sk_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp) skb = alloc_skb_fclone(size + sk->sk_prot->max_header, gfp); if (skb) { if (sk_wmem_schedule(sk, skb->truesize)) { + skb_reserve(skb, sk->sk_prot->max_header); /* * Make sure that we have exactly size bytes * available to the caller, no more, no less. */ - skb_reserve(skb, skb_tailroom(skb) - size); + skb->avail_size = size; return skb; } __kfree_skb(skb); @@ -995,10 +996,9 @@ new_segment: copy = seglen; /* Where to copy to? */ - if (skb_tailroom(skb) > 0) { + if (skb_availroom(skb) > 0) { /* We have some space in skb head. Superb! */ - if (copy > skb_tailroom(skb)) - copy = skb_tailroom(skb); + copy = min_t(int, copy, skb_availroom(skb)); err = skb_add_data_nocache(sk, skb, from, copy); if (err) goto do_fault; diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 364784a..376b2cf 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -2060,7 +2060,7 @@ static void tcp_retrans_try_collapse(struct sock *sk, struct sk_buff *to, /* Punt if not enough space exists in the first SKB for * the data in the second */ - if (skb->len > skb_tailroom(to)) + if (skb->len > skb_availroom(to)) break; if (after(TCP_SKB_CB(skb)->end_seq, tcp_wnd_end(tp))) -- cgit v0.10.2 From 7fb0a5ee8889488f7568ffddffeb66ddeb50917e Mon Sep 17 00:00:00 2001 From: "Nikunj A. Dadhania" Date: Mon, 9 Apr 2012 13:52:23 +0530 Subject: perf kvm: Finding struct machine fails for PERF_RECORD_MMAP Running 'perf kvm --host --guest --guestmount /tmp/guestmount record -a -g -- sleep 2' Was resulting in a segfault. For event type PERF_RECORD_MMAP, event->ip.pid is being used in perf_session__find_machine_for_cpumode, which is not correct. The event->ip.pid field happens to be 0 in this case and results in returning a NULL machine object. Finally, access to self->pid in machine__mmap_name, results in a segfault later. For PERF_RECORD_MMAP type, pass event->mmap.pid. Signed-off-by: Nikunj A. Dadhania Reviewed-by: David Ahern Tested-by: David Ahern Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Nikunj A. Dadhania Link: http://lkml.kernel.org/r/20120409081835.10576.22018.stgit@abhimanyu.in.ibm.com Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 9412e3b..00923cd 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -826,8 +826,16 @@ static struct machine * { const u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; - if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) - return perf_session__find_machine(session, event->ip.pid); + if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) { + u32 pid; + + if (event->header.type == PERF_RECORD_MMAP) + pid = event->mmap.pid; + else + pid = event->ip.pid; + + return perf_session__find_machine(session, pid); + } return perf_session__find_host_machine(session); } -- cgit v0.10.2 From 79549c6dfda0603dba9a70a53467ce62d9335c33 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 9 Apr 2012 21:03:50 +0200 Subject: cred: copy_process() should clear child->replacement_session_keyring keyctl_session_to_parent(task) sets ->replacement_session_keyring, it should be processed and cleared by key_replace_session_keyring(). However, this task can fork before it notices TIF_NOTIFY_RESUME and the new child gets the bogus ->replacement_session_keyring copied by dup_task_struct(). This is obviously wrong and, if nothing else, this leads to put_cred(already_freed_cred). change copy_creds() to clear this member. If copy_process() fails before this point the wrong ->replacement_session_keyring doesn't matter, exit_creds() won't be called. Cc: Signed-off-by: Oleg Nesterov Acked-by: David Howells Signed-off-by: Linus Torvalds diff --git a/kernel/cred.c b/kernel/cred.c index 97b36ee..e70683d 100644 --- a/kernel/cred.c +++ b/kernel/cred.c @@ -386,6 +386,8 @@ int copy_creds(struct task_struct *p, unsigned long clone_flags) struct cred *new; int ret; + p->replacement_session_keyring = NULL; + if ( #ifdef CONFIG_KEYS !p->cred->thread_keyring && -- cgit v0.10.2 From 4e833c0b87a30798e67f06120cecebef6ee9644c Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Thu, 15 Mar 2012 16:37:08 +0200 Subject: xhci: don't re-enable IE constantly While we're at that, define IMAN bitfield to aid readability. The interrupt enable bit should be set once on driver init, and we shouldn't need to continually re-enable it. Commit c21599a3 introduced a read of the irq_pending register, and that allows us to preserve the state of the IE bit. Before that commit, we were blindly writing 0x3 to the register. This patch should be backported to kernels as old as 2.6.36, or ones that contain the commit c21599a36165dbc78b380846b254017a548b9de5 "USB: xhci: Reduce reads and writes of interrupter registers". Signed-off-by: Felipe Balbi Signed-off-by: Sarah Sharp Cc: stable@vger.kernel.org diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 6bd9d53..5ddc4ae 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -2417,7 +2417,7 @@ hw_died: u32 irq_pending; /* Acknowledge the PCI interrupt */ irq_pending = xhci_readl(xhci, &xhci->ir_set->irq_pending); - irq_pending |= 0x3; + irq_pending |= IMAN_IP; xhci_writel(xhci, irq_pending, &xhci->ir_set->irq_pending); } diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 91074fd..3d69c4b 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -205,6 +205,10 @@ struct xhci_op_regs { #define CMD_PM_INDEX (1 << 11) /* bits 12:31 are reserved (and should be preserved on writes). */ +/* IMAN - Interrupt Management Register */ +#define IMAN_IP (1 << 1) +#define IMAN_IE (1 << 0) + /* USBSTS - USB status - status bitmasks */ /* HC not running - set to 1 when run/stop bit is cleared. */ #define STS_HALT XHCI_STS_HALT -- cgit v0.10.2 From 5af98bb06dee79d28c805f9fd0805ce791121784 Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Fri, 16 Mar 2012 12:58:20 -0700 Subject: xhci: Warn when hosts don't halt. Eric Fu reports a problem with his VIA host controller fetching a zeroed event ring pointer on resume from suspend. The host should have been halted, but we can't be sure because that code ignores the return value from xhci_halt(). Print a warning when the host controller refuses to halt within XHCI_MAX_HALT_USEC (currently 16 seconds). (Update: it turns out that the VIA host controller is reporting a halted state when it fetches the zeroed event ring pointer. However, we still need this warning for other host controllers.) Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index e1963d4..f68bc15 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -106,6 +106,9 @@ int xhci_halt(struct xhci_hcd *xhci) STS_HALT, STS_HALT, XHCI_MAX_HALT_USEC); if (!ret) xhci->xhc_state |= XHCI_STATE_HALTED; + else + xhci_warn(xhci, "Host not halted after %u microseconds.\n", + XHCI_MAX_HALT_USEC); return ret; } -- cgit v0.10.2 From 159e1fcc9a60fc7daba23ee8fcdb99799de3fe84 Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Fri, 16 Mar 2012 13:09:39 -0700 Subject: xhci: Don't write zeroed pointers to xHC registers. When xhci_mem_cleanup() is called, we can't be sure if the xHC is actually halted. We can ask the xHC to halt by writing to the RUN bit in the command register, but that might timeout due to a HW hang. If the host controller is still running, we should not write zeroed values to the event ring dequeue pointers or base tables, the DCBAA pointers, or the command ring pointers. Eric Fu reports his VIA VL800 host accesses the event ring pointers after a failed register restore on resume from suspend. The hypothesis is that the host never actually halted before the register write to change the event ring pointer to zero. Remove all writes of zeroed values to pointer registers in xhci_mem_cleanup(). Instead, make all callers of the function reset the host controller first, which will reset those registers to zero. xhci_mem_init() is the only caller that doesn't first halt and reset the host controller before calling xhci_mem_cleanup(). This should be backported to kernels as old as 2.6.32. Signed-off-by: Sarah Sharp Tested-by: Elric Fu Cc: stable@vger.kernel.org diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index cae4c6f..68eaa90 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -1796,11 +1796,6 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci) int i; /* Free the Event Ring Segment Table and the actual Event Ring */ - if (xhci->ir_set) { - xhci_writel(xhci, 0, &xhci->ir_set->erst_size); - xhci_write_64(xhci, 0, &xhci->ir_set->erst_base); - xhci_write_64(xhci, 0, &xhci->ir_set->erst_dequeue); - } size = sizeof(struct xhci_erst_entry)*(xhci->erst.num_entries); if (xhci->erst.entries) dma_free_coherent(&pdev->dev, size, @@ -1812,7 +1807,6 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci) xhci->event_ring = NULL; xhci_dbg(xhci, "Freed event ring\n"); - xhci_write_64(xhci, 0, &xhci->op_regs->cmd_ring); if (xhci->cmd_ring) xhci_ring_free(xhci, xhci->cmd_ring); xhci->cmd_ring = NULL; @@ -1841,7 +1835,6 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci) xhci->medium_streams_pool = NULL; xhci_dbg(xhci, "Freed medium stream array pool\n"); - xhci_write_64(xhci, 0, &xhci->op_regs->dcbaa_ptr); if (xhci->dcbaa) dma_free_coherent(&pdev->dev, sizeof(*xhci->dcbaa), xhci->dcbaa, xhci->dcbaa->dma); @@ -2459,6 +2452,8 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) fail: xhci_warn(xhci, "Couldn't initialize memory\n"); + xhci_halt(xhci); + xhci_reset(xhci); xhci_mem_cleanup(xhci); return -ENOMEM; } -- cgit v0.10.2 From fb3d85bc7193f23c9a564502df95564c49a32c91 Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Fri, 16 Mar 2012 13:27:39 -0700 Subject: xhci: Restore event ring dequeue pointer on resume. The xhci_save_registers() function saved the event ring dequeue pointer in the s3 register structure, but xhci_restore_registers() never restored it. No other code in the xHCI successful resume path would ever restore it either. Fix that. This should be backported to kernels as old as 2.6.37, that contain the commit 5535b1d5f8885695c6ded783c692e3c0d0eda8ca "USB: xHCI: PCI power management implementation". Signed-off-by: Sarah Sharp Tested-by: Elric Fu Cc: Andiry Xu Cc: stable@vger.kernel.org diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index f68bc15..d2222dc 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -684,6 +684,7 @@ static void xhci_restore_registers(struct xhci_hcd *xhci) xhci_writel(xhci, xhci->s3.irq_control, &xhci->ir_set->irq_control); xhci_writel(xhci, xhci->s3.erst_size, &xhci->ir_set->erst_size); xhci_write_64(xhci, xhci->s3.erst_base, &xhci->ir_set->erst_base); + xhci_write_64(xhci, xhci->s3.erst_dequeue, &xhci->ir_set->erst_dequeue); } static void xhci_set_cmd_ring_deq(struct xhci_hcd *xhci) -- cgit v0.10.2 From c7713e736526d8c9f6f87716fb90562a8ffaff2c Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Fri, 16 Mar 2012 13:19:35 -0700 Subject: xhci: Fix register save/restore order. The xHCI 1.0 spec errata released on June 13, 2011, changes the ordering that the xHCI registers are saved and restored in. It moves the interrupt pending (IMAN) and interrupt control (IMOD) registers to be saved and restored last. I believe that's because the host controller may attempt to fetch the event ring table when interrupts are re-enabled. Therefore we need to restore the event ring registers before we re-enable interrupts. This should be backported to kernels as old as 2.6.37, that contain the commit 5535b1d5f8885695c6ded783c692e3c0d0eda8ca "USB: xHCI: PCI power management implementation" Signed-off-by: Sarah Sharp Tested-by: Elric Fu Cc: Andiry Xu Cc: stable@vger.kernel.org diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index d2222dc..36641a7 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -667,11 +667,11 @@ static void xhci_save_registers(struct xhci_hcd *xhci) xhci->s3.dev_nt = xhci_readl(xhci, &xhci->op_regs->dev_notification); xhci->s3.dcbaa_ptr = xhci_read_64(xhci, &xhci->op_regs->dcbaa_ptr); xhci->s3.config_reg = xhci_readl(xhci, &xhci->op_regs->config_reg); - xhci->s3.irq_pending = xhci_readl(xhci, &xhci->ir_set->irq_pending); - xhci->s3.irq_control = xhci_readl(xhci, &xhci->ir_set->irq_control); xhci->s3.erst_size = xhci_readl(xhci, &xhci->ir_set->erst_size); xhci->s3.erst_base = xhci_read_64(xhci, &xhci->ir_set->erst_base); xhci->s3.erst_dequeue = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue); + xhci->s3.irq_pending = xhci_readl(xhci, &xhci->ir_set->irq_pending); + xhci->s3.irq_control = xhci_readl(xhci, &xhci->ir_set->irq_control); } static void xhci_restore_registers(struct xhci_hcd *xhci) @@ -680,11 +680,11 @@ static void xhci_restore_registers(struct xhci_hcd *xhci) xhci_writel(xhci, xhci->s3.dev_nt, &xhci->op_regs->dev_notification); xhci_write_64(xhci, xhci->s3.dcbaa_ptr, &xhci->op_regs->dcbaa_ptr); xhci_writel(xhci, xhci->s3.config_reg, &xhci->op_regs->config_reg); - xhci_writel(xhci, xhci->s3.irq_pending, &xhci->ir_set->irq_pending); - xhci_writel(xhci, xhci->s3.irq_control, &xhci->ir_set->irq_control); xhci_writel(xhci, xhci->s3.erst_size, &xhci->ir_set->erst_size); xhci_write_64(xhci, xhci->s3.erst_base, &xhci->ir_set->erst_base); xhci_write_64(xhci, xhci->s3.erst_dequeue, &xhci->ir_set->erst_dequeue); + xhci_writel(xhci, xhci->s3.irq_pending, &xhci->ir_set->irq_pending); + xhci_writel(xhci, xhci->s3.irq_control, &xhci->ir_set->irq_control); } static void xhci_set_cmd_ring_deq(struct xhci_hcd *xhci) -- cgit v0.10.2 From d8aec3dbdfd02627e198e7956ab4aaeba2a349fa Mon Sep 17 00:00:00 2001 From: Elric Fu Date: Mon, 26 Mar 2012 21:16:02 +0800 Subject: USB: fix bug of device descriptor got from superspeed device When the Seagate Goflex USB3.0 device is attached to VIA xHCI host, sometimes the device will downgrade mode to high speed. By the USB analyzer, I found the device finished the link training process and worked at superspeed mode. But the device descriptor got from the device shows the device works at 2.1. It is very strange and seems like the device controller of Seagate Goflex has a little confusion. The first 8 bytes of device descriptor should be: 12 01 00 03 00 00 00 09 But the first 8 bytes of wrong device descriptor are: 12 01 10 02 00 00 00 40 The wrong device descriptor caused the initialization of mass storage failed. After a while, the device would be recognized as a high speed device and works fine. This patch will warm reset the device to fix the issue after finding the bcdUSB field of device descriptor isn't 0x0300 but the speed mode of device is superspeed. This patch should be backported to kernels as old as 3.2, or ones that contain the commit 75d7cf72ab9fa01dc70877aa5c68e8ef477229dc "usbcore: refine warm reset logic". Signed-off-by: Elric Fu Acked-by: Andiry Xu Acked-by: Sergei Shtylyov Signed-off-by: Sarah Sharp Cc: stable@vger.kernel.org diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 28664eb..a2aa9d6 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -3163,6 +3163,22 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, if (retval) goto fail; + /* + * Some superspeed devices have finished the link training process + * and attached to a superspeed hub port, but the device descriptor + * got from those devices show they aren't superspeed devices. Warm + * reset the port attached by the devices can fix them. + */ + if ((udev->speed == USB_SPEED_SUPER) && + (le16_to_cpu(udev->descriptor.bcdUSB) < 0x0300)) { + dev_err(&udev->dev, "got a wrong device descriptor, " + "warm reset device\n"); + hub_port_reset(hub, port1, udev, + HUB_BH_RESET_TIME, true); + retval = -EINVAL; + goto fail; + } + if (udev->descriptor.bMaxPacketSize0 == 0xff || udev->speed == USB_SPEED_SUPER) i = 512; -- cgit v0.10.2 From 457a4f61f9bfc3ae76e5b49f30f25d86bb696f67 Mon Sep 17 00:00:00 2001 From: Elric Fu Date: Thu, 29 Mar 2012 15:47:50 +0800 Subject: xHCI: add XHCI_RESET_ON_RESUME quirk for VIA xHCI host The suspend operation of VIA xHCI host have some issues and hibernate operation works fine, so The XHCI_RESET_ON_RESUME quirk is added for it. This patch should base on "xHCI: Don't write zeroed pointer to xHC registers" that is released by Sarah. Otherwise, the host system error will ocurr in the hibernate operation process. This should be backported to stable kernels as old as 2.6.37, that contain the commit c877b3b2ad5cb9d4fe523c5496185cc328ff3ae9 "xhci: Add reset on resume quirk for asrock p67 host". Signed-off-by: Elric Fu Signed-off-by: Sarah Sharp Cc: stable@vger.kernel.org diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 0d7b851..7a856a7 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -95,6 +95,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) xhci->quirks |= XHCI_RESET_ON_RESUME; xhci_dbg(xhci, "QUIRK: Resetting on resume\n"); } + if (pdev->vendor == PCI_VENDOR_ID_VIA) + xhci->quirks |= XHCI_RESET_ON_RESUME; } /* called during probe() after chip reset completes */ -- cgit v0.10.2 From 3fc8206d3dca1550eb0a1f6e2a350881835954ba Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 28 Mar 2012 10:30:26 +0300 Subject: xHCI: use gfp flags from caller instead of GFP_ATOMIC The caller is allowed to specify the GFP flags for these functions. We should prefer their flags unless we have good reason. For example, if we take a spin_lock ourselves we'd need to use GFP_ATOMIC. But in this case it's safe to use the callers GFP flags. The callers all pass GFP_ATOMIC here, so this change doesn't affect how the kernel behaves but we may add other callers later and this is a cleanup. Signed-off-by: Dan Carpenter Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 5ddc4ae..3d9422f 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -2734,7 +2734,7 @@ int xhci_queue_intr_tx(struct xhci_hcd *xhci, gfp_t mem_flags, urb->dev->speed == USB_SPEED_FULL) urb->interval /= 8; } - return xhci_queue_bulk_tx(xhci, GFP_ATOMIC, urb, slot_id, ep_index); + return xhci_queue_bulk_tx(xhci, mem_flags, urb, slot_id, ep_index); } /* @@ -3514,7 +3514,7 @@ int xhci_queue_isoc_tx_prepare(struct xhci_hcd *xhci, gfp_t mem_flags, } ep_ring->num_trbs_free_temp = ep_ring->num_trbs_free; - return xhci_queue_isoc_tx(xhci, GFP_ATOMIC, urb, slot_id, ep_index); + return xhci_queue_isoc_tx(xhci, mem_flags, urb, slot_id, ep_index); } /**** Command Ring Operations ****/ -- cgit v0.10.2 From 95018a53f7653e791bba1f54c8d75d9cb700d1bd Mon Sep 17 00:00:00 2001 From: Alex He Date: Fri, 30 Mar 2012 10:21:38 +0800 Subject: xHCI: Correct the #define XHCI_LEGACY_DISABLE_SMI Re-define XHCI_LEGACY_DISABLE_SMI and used it in right way. All SMI enable bits will be cleared to zero and flag bits 29:31 are also cleared to zero. Other bits should be presvered as Table 146. This patch should be backported to kernels as old as 2.6.31. Signed-off-by: Alex He Signed-off-by: Sarah Sharp Cc: stable@vger.kernel.org diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index 11de5f1..32dada8 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -825,9 +825,13 @@ static void __devinit quirk_usb_handoff_xhci(struct pci_dev *pdev) } } - /* Disable any BIOS SMIs */ - writel(XHCI_LEGACY_DISABLE_SMI, - base + ext_cap_offset + XHCI_LEGACY_CONTROL_OFFSET); + val = readl(base + ext_cap_offset + XHCI_LEGACY_CONTROL_OFFSET); + /* Mask off (turn off) any enabled SMIs */ + val &= XHCI_LEGACY_DISABLE_SMI; + /* Mask all SMI events bits, RW1C */ + val |= XHCI_LEGACY_SMI_EVENTS; + /* Disable any BIOS SMIs and clear all SMI events*/ + writel(val, base + ext_cap_offset + XHCI_LEGACY_CONTROL_OFFSET); if (usb_is_intel_switchable_xhci(pdev)) usb_enable_xhci_ports(pdev); diff --git a/drivers/usb/host/xhci-ext-caps.h b/drivers/usb/host/xhci-ext-caps.h index c7f3312..377f424 100644 --- a/drivers/usb/host/xhci-ext-caps.h +++ b/drivers/usb/host/xhci-ext-caps.h @@ -62,8 +62,9 @@ /* USB Legacy Support Control and Status Register - section 7.1.2 */ /* Add this offset, plus the value of xECP in HCCPARAMS to the base address */ #define XHCI_LEGACY_CONTROL_OFFSET (0x04) -/* bits 1:2, 5:12, and 17:19 need to be preserved; bits 21:28 should be zero */ -#define XHCI_LEGACY_DISABLE_SMI ((0x3 << 1) + (0xff << 5) + (0x7 << 17)) +/* bits 1:3, 5:12, and 17:19 need to be preserved; bits 21:28 should be zero */ +#define XHCI_LEGACY_DISABLE_SMI ((0x7 << 1) + (0xff << 5) + (0x7 << 17)) +#define XHCI_LEGACY_SMI_EVENTS (0x7 << 29) /* USB 2.0 xHCI 0.96 L1C capability - section 7.2.2.1.3.2 */ #define XHCI_L1C (1 << 16) -- cgit v0.10.2 From 92ae03f2ef99fbc23bfa9080d6b58f25227bd7ef Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 6 Apr 2012 14:32:32 -0700 Subject: x86: merge 32/64-bit versions of 'strncpy_from_user()' and speed it up This merges the 32- and 64-bit versions of the x86 strncpy_from_user() by just rewriting it in C rather than the ancient inline asm versions that used lodsb/stosb and had been duplicated for (trivial) differences between the 32-bit and 64-bit versions. While doing that, it also speeds them up by doing the accesses a word at a time. Finally, the new routines also properly handle the case of hitting the end of the address space, which we have never done correctly before (fs/namei.c has a hack around it for that reason). Despite all these improvements, it actually removes more lines than it adds, due to the de-duplication. Also, we no longer export (or define) the legacy __strncpy_from_user() function (that was defined to not do the user permission checks), since it's not actually used anywhere, and the user address space checks are built in to the new code. Other architecture maintainers have been notified that the old hack in fs/namei.c will be going away in the 3.5 merge window, in case they copied the x86 approach of being a bit cavalier about the end of the address space. Cc: linux-arch@vger.kernel.org Cc: Ingo Molnar Cc: Peter Anvin" Signed-off-by: Linus Torvalds diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h index 8be5f54..e054459 100644 --- a/arch/x86/include/asm/uaccess.h +++ b/arch/x86/include/asm/uaccess.h @@ -557,6 +557,8 @@ struct __large_struct { unsigned long buf[100]; }; extern unsigned long copy_from_user_nmi(void *to, const void __user *from, unsigned long n); +extern __must_check long +strncpy_from_user(char *dst, const char __user *src, long count); /* * movsl can be slow when source and dest are not both 8-byte aligned diff --git a/arch/x86/include/asm/uaccess_32.h b/arch/x86/include/asm/uaccess_32.h index 566e803..8084bc7 100644 --- a/arch/x86/include/asm/uaccess_32.h +++ b/arch/x86/include/asm/uaccess_32.h @@ -213,11 +213,6 @@ static inline unsigned long __must_check copy_from_user(void *to, return n; } -long __must_check strncpy_from_user(char *dst, const char __user *src, - long count); -long __must_check __strncpy_from_user(char *dst, - const char __user *src, long count); - /** * strlen_user: - Get the size of a string in user space. * @str: The string to measure. diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h index 1c66d30..fcd4b6f 100644 --- a/arch/x86/include/asm/uaccess_64.h +++ b/arch/x86/include/asm/uaccess_64.h @@ -208,10 +208,6 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size) } } -__must_check long -strncpy_from_user(char *dst, const char __user *src, long count); -__must_check long -__strncpy_from_user(char *dst, const char __user *src, long count); __must_check long strnlen_user(const char __user *str, long n); __must_check long __strnlen_user(const char __user *str, long n); __must_check long strlen_user(const char __user *str); diff --git a/arch/x86/lib/usercopy.c b/arch/x86/lib/usercopy.c index 97be9cb..57252c9 100644 --- a/arch/x86/lib/usercopy.c +++ b/arch/x86/lib/usercopy.c @@ -7,6 +7,8 @@ #include #include +#include + /* * best effort, GUP based copy_from_user() that is NMI-safe */ @@ -41,3 +43,104 @@ copy_from_user_nmi(void *to, const void __user *from, unsigned long n) return len; } EXPORT_SYMBOL_GPL(copy_from_user_nmi); + +static inline unsigned long count_bytes(unsigned long mask) +{ + mask = (mask - 1) & ~mask; + mask >>= 7; + return count_masked_bytes(mask); +} + +/* + * Do a strncpy, return length of string without final '\0'. + * 'count' is the user-supplied count (return 'count' if we + * hit it), 'max' is the address space maximum (and we return + * -EFAULT if we hit it). + */ +static inline long do_strncpy_from_user(char *dst, const char __user *src, long count, long max) +{ + long res = 0; + + /* + * Truncate 'max' to the user-specified limit, so that + * we only have one limit we need to check in the loop + */ + if (max > count) + max = count; + + while (max >= sizeof(unsigned long)) { + unsigned long c; + + /* Fall back to byte-at-a-time if we get a page fault */ + if (unlikely(__get_user(c,(unsigned long __user *)(src+res)))) + break; + /* This can write a few bytes past the NUL character, but that's ok */ + *(unsigned long *)(dst+res) = c; + c = has_zero(c); + if (c) + return res + count_bytes(c); + res += sizeof(unsigned long); + max -= sizeof(unsigned long); + } + + while (max) { + char c; + + if (unlikely(__get_user(c,src+res))) + return -EFAULT; + dst[res] = c; + if (!c) + return res; + res++; + max--; + } + + /* + * Uhhuh. We hit 'max'. But was that the user-specified maximum + * too? If so, that's ok - we got as much as the user asked for. + */ + if (res >= count) + return count; + + /* + * Nope: we hit the address space limit, and we still had more + * characters the caller would have wanted. That's an EFAULT. + */ + return -EFAULT; +} + +/** + * strncpy_from_user: - Copy a NUL terminated string from userspace. + * @dst: Destination address, in kernel space. This buffer must be at + * least @count bytes long. + * @src: Source address, in user space. + * @count: Maximum number of bytes to copy, including the trailing NUL. + * + * Copies a NUL-terminated string from userspace to kernel space. + * + * On success, returns the length of the string (not including the trailing + * NUL). + * + * If access to userspace fails, returns -EFAULT (some data may have been + * copied). + * + * If @count is smaller than the length of the string, copies @count bytes + * and returns @count. + */ +long +strncpy_from_user(char *dst, const char __user *src, long count) +{ + unsigned long max_addr, src_addr; + + if (unlikely(count <= 0)) + return 0; + + max_addr = current_thread_info()->addr_limit.seg; + src_addr = (unsigned long)src; + if (likely(src_addr < max_addr)) { + unsigned long max = max_addr - src_addr; + return do_strncpy_from_user(dst, src, count, max); + } + return -EFAULT; +} +EXPORT_SYMBOL(strncpy_from_user); diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c index d9b094c..ef2a6a5 100644 --- a/arch/x86/lib/usercopy_32.c +++ b/arch/x86/lib/usercopy_32.c @@ -33,93 +33,6 @@ static inline int __movsl_is_ok(unsigned long a1, unsigned long a2, unsigned lon __movsl_is_ok((unsigned long)(a1), (unsigned long)(a2), (n)) /* - * Copy a null terminated string from userspace. - */ - -#define __do_strncpy_from_user(dst, src, count, res) \ -do { \ - int __d0, __d1, __d2; \ - might_fault(); \ - __asm__ __volatile__( \ - " testl %1,%1\n" \ - " jz 2f\n" \ - "0: lodsb\n" \ - " stosb\n" \ - " testb %%al,%%al\n" \ - " jz 1f\n" \ - " decl %1\n" \ - " jnz 0b\n" \ - "1: subl %1,%0\n" \ - "2:\n" \ - ".section .fixup,\"ax\"\n" \ - "3: movl %5,%0\n" \ - " jmp 2b\n" \ - ".previous\n" \ - _ASM_EXTABLE(0b,3b) \ - : "=&d"(res), "=&c"(count), "=&a" (__d0), "=&S" (__d1), \ - "=&D" (__d2) \ - : "i"(-EFAULT), "0"(count), "1"(count), "3"(src), "4"(dst) \ - : "memory"); \ -} while (0) - -/** - * __strncpy_from_user: - Copy a NUL terminated string from userspace, with less checking. - * @dst: Destination address, in kernel space. This buffer must be at - * least @count bytes long. - * @src: Source address, in user space. - * @count: Maximum number of bytes to copy, including the trailing NUL. - * - * Copies a NUL-terminated string from userspace to kernel space. - * Caller must check the specified block with access_ok() before calling - * this function. - * - * On success, returns the length of the string (not including the trailing - * NUL). - * - * If access to userspace fails, returns -EFAULT (some data may have been - * copied). - * - * If @count is smaller than the length of the string, copies @count bytes - * and returns @count. - */ -long -__strncpy_from_user(char *dst, const char __user *src, long count) -{ - long res; - __do_strncpy_from_user(dst, src, count, res); - return res; -} -EXPORT_SYMBOL(__strncpy_from_user); - -/** - * strncpy_from_user: - Copy a NUL terminated string from userspace. - * @dst: Destination address, in kernel space. This buffer must be at - * least @count bytes long. - * @src: Source address, in user space. - * @count: Maximum number of bytes to copy, including the trailing NUL. - * - * Copies a NUL-terminated string from userspace to kernel space. - * - * On success, returns the length of the string (not including the trailing - * NUL). - * - * If access to userspace fails, returns -EFAULT (some data may have been - * copied). - * - * If @count is smaller than the length of the string, copies @count bytes - * and returns @count. - */ -long -strncpy_from_user(char *dst, const char __user *src, long count) -{ - long res = -EFAULT; - if (access_ok(VERIFY_READ, src, 1)) - __do_strncpy_from_user(dst, src, count, res); - return res; -} -EXPORT_SYMBOL(strncpy_from_user); - -/* * Zero Userspace */ diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c index b7c2849..0d0326f 100644 --- a/arch/x86/lib/usercopy_64.c +++ b/arch/x86/lib/usercopy_64.c @@ -9,55 +9,6 @@ #include /* - * Copy a null terminated string from userspace. - */ - -#define __do_strncpy_from_user(dst,src,count,res) \ -do { \ - long __d0, __d1, __d2; \ - might_fault(); \ - __asm__ __volatile__( \ - " testq %1,%1\n" \ - " jz 2f\n" \ - "0: lodsb\n" \ - " stosb\n" \ - " testb %%al,%%al\n" \ - " jz 1f\n" \ - " decq %1\n" \ - " jnz 0b\n" \ - "1: subq %1,%0\n" \ - "2:\n" \ - ".section .fixup,\"ax\"\n" \ - "3: movq %5,%0\n" \ - " jmp 2b\n" \ - ".previous\n" \ - _ASM_EXTABLE(0b,3b) \ - : "=&r"(res), "=&c"(count), "=&a" (__d0), "=&S" (__d1), \ - "=&D" (__d2) \ - : "i"(-EFAULT), "0"(count), "1"(count), "3"(src), "4"(dst) \ - : "memory"); \ -} while (0) - -long -__strncpy_from_user(char *dst, const char __user *src, long count) -{ - long res; - __do_strncpy_from_user(dst, src, count, res); - return res; -} -EXPORT_SYMBOL(__strncpy_from_user); - -long -strncpy_from_user(char *dst, const char __user *src, long count) -{ - long res = -EFAULT; - if (access_ok(VERIFY_READ, src, 1)) - return __strncpy_from_user(dst, src, count); - return res; -} -EXPORT_SYMBOL(strncpy_from_user); - -/* * Zero Userspace */ -- cgit v0.10.2 From e72d5c7e9c831f6e393c71dcd62acafbac2b58d0 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Wed, 11 Apr 2012 12:45:20 -0400 Subject: arch/tile: avoid unused variable warning in proc.c for tilegx Until we push the unaligned access support for tilegx, it's silly to have arch/tile/kernel/proc.c generate a warning about an unused variable. Extend the #ifdef to cover all the code and data for now. Signed-off-by: Chris Metcalf diff --git a/arch/tile/kernel/proc.c b/arch/tile/kernel/proc.c index 7a93270..446a7f5 100644 --- a/arch/tile/kernel/proc.c +++ b/arch/tile/kernel/proc.c @@ -146,7 +146,6 @@ static ctl_table unaligned_table[] = { }, {} }; -#endif static struct ctl_path tile_path[] = { { .procname = "tile" }, @@ -155,10 +154,9 @@ static struct ctl_path tile_path[] = { static int __init proc_sys_tile_init(void) { -#ifndef __tilegx__ /* FIXME: GX: no support for unaligned access yet */ register_sysctl_paths(tile_path, unaligned_table); -#endif return 0; } arch_initcall(proc_sys_tile_init); +#endif -- cgit v0.10.2 From a7959c1394d4126a70a53b914ce4105f5173d0aa Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Mon, 19 Mar 2012 15:44:31 -0500 Subject: rtlwifi: Preallocate USB read buffers and eliminate kalloc in read routine The current version of rtlwifi for USB operations uses kmalloc to acquire a 32-bit buffer for each read of the device. When _usb_read_sync() is called with the rcu_lock held, the result is a "sleeping function called from invalid context" BUG. This is reported for two cases in https://bugzilla.kernel.org/show_bug.cgi?id=42775. The first case has the lock originating from within rtlwifi and could be fixed by rearranging the locking; however, the second originates from within mac80211. The kmalloc() call is removed from _usb_read_sync() by creating a ring buffer pointer in the private area and allocating the buffer data in the probe routine. Signed-off-by: Larry Finger Cc: Stable [This version good for 3.3+ - different patch for 3.2 - 2.6.39] Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/rtlwifi/usb.c b/drivers/net/wireless/rtlwifi/usb.c index 2e1e352..d04dbda 100644 --- a/drivers/net/wireless/rtlwifi/usb.c +++ b/drivers/net/wireless/rtlwifi/usb.c @@ -124,46 +124,38 @@ static int _usbctrl_vendorreq_sync_read(struct usb_device *udev, u8 request, return status; } -static u32 _usb_read_sync(struct usb_device *udev, u32 addr, u16 len) +static u32 _usb_read_sync(struct rtl_priv *rtlpriv, u32 addr, u16 len) { + struct device *dev = rtlpriv->io.dev; + struct usb_device *udev = to_usb_device(dev); u8 request; u16 wvalue; u16 index; - u32 *data; - u32 ret; + __le32 *data = &rtlpriv->usb_data[rtlpriv->usb_data_index]; - data = kmalloc(sizeof(u32), GFP_KERNEL); - if (!data) - return -ENOMEM; request = REALTEK_USB_VENQT_CMD_REQ; index = REALTEK_USB_VENQT_CMD_IDX; /* n/a */ wvalue = (u16)addr; _usbctrl_vendorreq_sync_read(udev, request, wvalue, index, data, len); - ret = le32_to_cpu(*data); - kfree(data); - return ret; + if (++rtlpriv->usb_data_index >= RTL_USB_MAX_RX_COUNT) + rtlpriv->usb_data_index = 0; + return le32_to_cpu(*data); } static u8 _usb_read8_sync(struct rtl_priv *rtlpriv, u32 addr) { - struct device *dev = rtlpriv->io.dev; - - return (u8)_usb_read_sync(to_usb_device(dev), addr, 1); + return (u8)_usb_read_sync(rtlpriv, addr, 1); } static u16 _usb_read16_sync(struct rtl_priv *rtlpriv, u32 addr) { - struct device *dev = rtlpriv->io.dev; - - return (u16)_usb_read_sync(to_usb_device(dev), addr, 2); + return (u16)_usb_read_sync(rtlpriv, addr, 2); } static u32 _usb_read32_sync(struct rtl_priv *rtlpriv, u32 addr) { - struct device *dev = rtlpriv->io.dev; - - return _usb_read_sync(to_usb_device(dev), addr, 4); + return _usb_read_sync(rtlpriv, addr, 4); } static void _usb_write_async(struct usb_device *udev, u32 addr, u32 val, @@ -955,6 +947,11 @@ int __devinit rtl_usb_probe(struct usb_interface *intf, return -ENOMEM; } rtlpriv = hw->priv; + rtlpriv->usb_data = kzalloc(RTL_USB_MAX_RX_COUNT * sizeof(u32), + GFP_KERNEL); + if (!rtlpriv->usb_data) + return -ENOMEM; + rtlpriv->usb_data_index = 0; init_completion(&rtlpriv->firmware_loading_complete); SET_IEEE80211_DEV(hw, &intf->dev); udev = interface_to_usbdev(intf); @@ -1025,6 +1022,7 @@ void rtl_usb_disconnect(struct usb_interface *intf) /* rtl_deinit_rfkill(hw); */ rtl_usb_deinit(hw); rtl_deinit_core(hw); + kfree(rtlpriv->usb_data); rtlpriv->cfg->ops->deinit_sw_leds(hw); rtlpriv->cfg->ops->deinit_sw_vars(hw); _rtl_usb_io_handler_release(hw); diff --git a/drivers/net/wireless/rtlwifi/wifi.h b/drivers/net/wireless/rtlwifi/wifi.h index b591614..28ebc69 100644 --- a/drivers/net/wireless/rtlwifi/wifi.h +++ b/drivers/net/wireless/rtlwifi/wifi.h @@ -67,7 +67,7 @@ #define QOS_QUEUE_NUM 4 #define RTL_MAC80211_NUM_QUEUE 5 #define REALTEK_USB_VENQT_MAX_BUF_SIZE 254 - +#define RTL_USB_MAX_RX_COUNT 100 #define QBSS_LOAD_SIZE 5 #define MAX_WMMELE_LENGTH 64 @@ -1629,6 +1629,10 @@ struct rtl_priv { interface or hardware */ unsigned long status; + /* data buffer pointer for USB reads */ + __le32 *usb_data; + int usb_data_index; + /*This must be the last item so that it points to the data allocated beyond this structure like: -- cgit v0.10.2 From 673f7786e205c87b5d978c62827b9a66d097bebb Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Mon, 26 Mar 2012 10:48:20 -0500 Subject: rtlwifi: Add missing DMA buffer unmapping for PCI drivers In https://bugzilla.kernel.org/show_bug.cgi?id=42976, a system with driver rtl8192se used as an AP suffers from "Out of SW-IOMMU space" errors. These are caused by the DMA buffers used for beacons never being unmapped. This bug was also reported at https://bugs.launchpad.net/ubuntu/+source/linux/+bug/961618 Reported-and-Tested-by: Da Xue Signed-off-by: Larry Finger Cc: Stable Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c index 07dd38e..288b035 100644 --- a/drivers/net/wireless/rtlwifi/pci.c +++ b/drivers/net/wireless/rtlwifi/pci.c @@ -912,8 +912,13 @@ static void _rtl_pci_prepare_bcn_tasklet(struct ieee80211_hw *hw) memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc)); ring = &rtlpci->tx_ring[BEACON_QUEUE]; pskb = __skb_dequeue(&ring->queue); - if (pskb) + if (pskb) { + struct rtl_tx_desc *entry = &ring->desc[ring->idx]; + pci_unmap_single(rtlpci->pdev, rtlpriv->cfg->ops->get_desc( + (u8 *) entry, true, HW_DESC_TXBUFF_ADDR), + pskb->len, PCI_DMA_TODEVICE); kfree_skb(pskb); + } /*NB: the beacon data buffer must be 32-bit aligned. */ pskb = ieee80211_beacon_get(hw, mac->vif); -- cgit v0.10.2 From b4838d12e1f3cb48c2489a0b08733b5dbf848297 Mon Sep 17 00:00:00 2001 From: Samuel Ortiz Date: Tue, 10 Apr 2012 19:43:03 +0200 Subject: NFC: Fix the LLCP Tx fragmentation loop Reported-by: Dan Carpenter Signed-off-by: Samuel Ortiz Signed-off-by: John W. Linville diff --git a/net/nfc/llcp/commands.c b/net/nfc/llcp/commands.c index 7b76eb7..ef10ffc 100644 --- a/net/nfc/llcp/commands.c +++ b/net/nfc/llcp/commands.c @@ -474,7 +474,7 @@ int nfc_llcp_send_i_frame(struct nfc_llcp_sock *sock, while (remaining_len > 0) { - frag_len = min_t(u16, local->remote_miu, remaining_len); + frag_len = min_t(size_t, local->remote_miu, remaining_len); pr_debug("Fragment %zd bytes remaining %zd", frag_len, remaining_len); @@ -497,7 +497,7 @@ int nfc_llcp_send_i_frame(struct nfc_llcp_sock *sock, release_sock(sk); remaining_len -= frag_len; - msg_ptr += len; + msg_ptr += frag_len; } kfree(msg_data); -- cgit v0.10.2 From f57f9c167af7cb3fd315e6a8ebe194a8aea0832a Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Wed, 11 Apr 2012 09:39:02 -0700 Subject: drm/i915: make rc6 module parameter read-only People have been getting confused and thinking this is a runtime control. Cc: stable@vger.kernel.org Signed-off-by: Jesse Barnes Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index dfa55e7..ae8a64f 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -64,7 +64,7 @@ MODULE_PARM_DESC(semaphores, "Use semaphores for inter-ring sync (default: -1 (use per-chip defaults))"); int i915_enable_rc6 __read_mostly = -1; -module_param_named(i915_enable_rc6, i915_enable_rc6, int, 0600); +module_param_named(i915_enable_rc6, i915_enable_rc6, int, 0400); MODULE_PARM_DESC(i915_enable_rc6, "Enable power-saving render C-state 6. " "Different stages can be selected via bitmask values " -- cgit v0.10.2 From 9dc4e6c4d1182d34604ea40fef641775f5b15456 Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Mon, 9 Apr 2012 18:06:49 -0400 Subject: nfsd: don't fail unchecked creates of non-special files Allow a v3 unchecked open of a non-regular file succeed as if it were a lookup; typically a client in such a case will want to fall back on a local open, so succeeding and giving it the filehandle is more useful than failing with nfserr_exist, which makes it appear that nothing at all exists by that name. Similarly for v4, on an open-create, return the same errors we would on an attempt to open a non-regular file, instead of returning nfserr_exist. This fixes a problem found doing a v4 open of a symlink with O_RDONLY|O_CREAT, which resulted in the current client returning EEXIST. Thanks also to Trond for analysis. Cc: stable@kernel.org Reported-by: Orion Poplawski Tested-by: Orion Poplawski Signed-off-by: J. Bruce Fields diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 2ed14df..8256efd 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -235,17 +235,17 @@ do_open_lookup(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_o */ if (open->op_createmode == NFS4_CREATE_EXCLUSIVE && status == 0) open->op_bmval[1] = (FATTR4_WORD1_TIME_ACCESS | - FATTR4_WORD1_TIME_MODIFY); + FATTR4_WORD1_TIME_MODIFY); } else { status = nfsd_lookup(rqstp, current_fh, open->op_fname.data, open->op_fname.len, resfh); fh_unlock(current_fh); - if (status) - goto out; - status = nfsd_check_obj_isreg(resfh); } if (status) goto out; + status = nfsd_check_obj_isreg(resfh); + if (status) + goto out; if (is_create_with_attrs(open) && open->op_acl != NULL) do_set_nfs4_acl(rqstp, resfh, open->op_acl, open->op_bmval); diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index 296d671..5686661 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -1458,7 +1458,7 @@ do_nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp, switch (createmode) { case NFS3_CREATE_UNCHECKED: if (! S_ISREG(dchild->d_inode->i_mode)) - err = nfserr_exist; + goto out; else if (truncp) { /* in nfsv4, we need to treat this case a little * differently. we don't want to truncate the -- cgit v0.10.2 From d48fc63f6f3f485ed5aa9cf019d8e8e3a7d10263 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 11 Apr 2012 23:49:16 +0200 Subject: Revert "clocksource: Load the ACPI PM clocksource asynchronously" This reverts commit b519508298e0292e1771eecf14aaf67755adc39d. The reason for this revert is that making the frequency verification preemptible and interruptible is not working reliably. Michaels machine failed to use PM-timer with the message: PM-Timer running at invalid rate: 113% of normal - aborting. That's not a surprise as the frequency verification does rely on interrupts being disabled. With a async scheduled thread there is no guarantee to achieve the same result. Also some driver might fiddle with the CTC channel 2 during the verification period, which makes the result even more random and unpredictable. This can be solved by using the same mechanism as we use in the deferred TSC validation code, but that only will work if we verified a working HPET _BEFORE_ trying to do the PM-Timer lazy validation. So for now reverting is the safe option. Bisected-by: Michael Witten Cc: Arjan van de Ven Cc: Arjan van de Ven Cc: John Stultz Cc: Len Brown LKML-Reference: Signed-off-by: Thomas Gleixner diff --git a/drivers/clocksource/acpi_pm.c b/drivers/clocksource/acpi_pm.c index 82e8820..6b5cf02 100644 --- a/drivers/clocksource/acpi_pm.c +++ b/drivers/clocksource/acpi_pm.c @@ -23,7 +23,6 @@ #include #include #include -#include #include /* @@ -180,15 +179,17 @@ static int verify_pmtmr_rate(void) /* Number of reads we try to get two different values */ #define ACPI_PM_READ_CHECKS 10000 -static void __init acpi_pm_clocksource_async(void *unused, async_cookie_t cookie) +static int __init init_acpi_pm_clocksource(void) { cycle_t value1, value2; unsigned int i, j = 0; + if (!pmtmr_ioport) + return -ENODEV; /* "verify" this timing source: */ for (j = 0; j < ACPI_PM_MONOTONICITY_CHECKS; j++) { - usleep_range(100 * j, 100 * j + 100); + udelay(100 * j); value1 = clocksource_acpi_pm.read(&clocksource_acpi_pm); for (i = 0; i < ACPI_PM_READ_CHECKS; i++) { value2 = clocksource_acpi_pm.read(&clocksource_acpi_pm); @@ -202,34 +203,25 @@ static void __init acpi_pm_clocksource_async(void *unused, async_cookie_t cookie " 0x%#llx, 0x%#llx - aborting.\n", value1, value2); pmtmr_ioport = 0; - return; + return -EINVAL; } if (i == ACPI_PM_READ_CHECKS) { printk(KERN_INFO "PM-Timer failed consistency check " " (0x%#llx) - aborting.\n", value1); pmtmr_ioport = 0; - return; + return -ENODEV; } } if (verify_pmtmr_rate() != 0){ pmtmr_ioport = 0; - return; + return -ENODEV; } - clocksource_register_hz(&clocksource_acpi_pm, + return clocksource_register_hz(&clocksource_acpi_pm, PMTMR_TICKS_PER_SEC); } -static int __init init_acpi_pm_clocksource(void) -{ - if (!pmtmr_ioport) - return -ENODEV; - - async_schedule(acpi_pm_clocksource_async, NULL); - return 0; -} - /* We use fs_initcall because we want the PCI fixups to have run * but we still need to load before device_initcall */ -- cgit v0.10.2 From 32f6daad4651a748a58a3ab6da0611862175722f Mon Sep 17 00:00:00 2001 From: Alex Williamson Date: Wed, 11 Apr 2012 09:51:49 -0600 Subject: KVM: unmap pages from the iommu when slots are removed We've been adding new mappings, but not destroying old mappings. This can lead to a page leak as pages are pinned using get_user_pages, but only unpinned with put_page if they still exist in the memslots list on vm shutdown. A memslot that is destroyed while an iommu domain is enabled for the guest will therefore result in an elevated page reference count that is never cleared. Additionally, without this fix, the iommu is only programmed with the first translation for a gpa. This can result in peer-to-peer errors if a mapping is destroyed and replaced by a new mapping at the same gpa as the iommu will still be pointing to the original, pinned memory address. Signed-off-by: Alex Williamson Signed-off-by: Marcelo Tosatti diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 665a260..72cbf08 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -596,6 +596,7 @@ void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id); #ifdef CONFIG_IOMMU_API int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot); +void kvm_iommu_unmap_pages(struct kvm *kvm, struct kvm_memory_slot *slot); int kvm_iommu_map_guest(struct kvm *kvm); int kvm_iommu_unmap_guest(struct kvm *kvm); int kvm_assign_device(struct kvm *kvm, @@ -609,6 +610,11 @@ static inline int kvm_iommu_map_pages(struct kvm *kvm, return 0; } +static inline void kvm_iommu_unmap_pages(struct kvm *kvm, + struct kvm_memory_slot *slot) +{ +} + static inline int kvm_iommu_map_guest(struct kvm *kvm) { return -ENODEV; diff --git a/virt/kvm/iommu.c b/virt/kvm/iommu.c index a457d21..fec1723 100644 --- a/virt/kvm/iommu.c +++ b/virt/kvm/iommu.c @@ -310,6 +310,11 @@ static void kvm_iommu_put_pages(struct kvm *kvm, } } +void kvm_iommu_unmap_pages(struct kvm *kvm, struct kvm_memory_slot *slot) +{ + kvm_iommu_put_pages(kvm, slot->base_gfn, slot->npages); +} + static int kvm_iommu_unmap_memslots(struct kvm *kvm) { int idx; @@ -320,7 +325,7 @@ static int kvm_iommu_unmap_memslots(struct kvm *kvm) slots = kvm_memslots(kvm); kvm_for_each_memslot(memslot, slots) - kvm_iommu_put_pages(kvm, memslot->base_gfn, memslot->npages); + kvm_iommu_unmap_pages(kvm, memslot); srcu_read_unlock(&kvm->srcu, idx); diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 42b7393..9739b53 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -808,12 +808,13 @@ int __kvm_set_memory_region(struct kvm *kvm, if (r) goto out_free; - /* map the pages in iommu page table */ + /* map/unmap the pages in iommu page table */ if (npages) { r = kvm_iommu_map_pages(kvm, &new); if (r) goto out_free; - } + } else + kvm_iommu_unmap_pages(kvm, &old); r = -ENOMEM; slots = kmemdup(kvm->memslots, sizeof(struct kvm_memslots), -- cgit v0.10.2 From 4fe9e9639d95cd11de63afa353f2de320f26033a Mon Sep 17 00:00:00 2001 From: Sachin Prabhu Date: Tue, 10 Apr 2012 18:12:27 +0100 Subject: Cleanup handling of NULL value passed for a mount option Allow blank user= and ip= mount option. Also clean up redundant checks for NULL values since the token parser will not actually match mount options with NULL values unless explicitly specified. Signed-off-by: Sachin Prabhu Reported-by: Chris Clayton Acked-by: Jeff Layton Tested-by: Chris Clayton Signed-off-by: Steve French diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index d81e933..6a86f3d 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -109,6 +109,8 @@ enum { /* Options which could be blank */ Opt_blank_pass, + Opt_blank_user, + Opt_blank_ip, Opt_err }; @@ -183,11 +185,15 @@ static const match_table_t cifs_mount_option_tokens = { { Opt_wsize, "wsize=%s" }, { Opt_actimeo, "actimeo=%s" }, + { Opt_blank_user, "user=" }, + { Opt_blank_user, "username=" }, { Opt_user, "user=%s" }, { Opt_user, "username=%s" }, { Opt_blank_pass, "pass=" }, { Opt_pass, "pass=%s" }, { Opt_pass, "password=%s" }, + { Opt_blank_ip, "ip=" }, + { Opt_blank_ip, "addr=" }, { Opt_ip, "ip=%s" }, { Opt_ip, "addr=%s" }, { Opt_unc, "unc=%s" }, @@ -1534,15 +1540,17 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, /* String Arguments */ + case Opt_blank_user: + /* null user, ie. anonymous authentication */ + vol->nullauth = 1; + vol->username = NULL; + break; case Opt_user: string = match_strdup(args); if (string == NULL) goto out_nomem; - if (!*string) { - /* null user, ie. anonymous authentication */ - vol->nullauth = 1; - } else if (strnlen(string, MAX_USERNAME_SIZE) > + if (strnlen(string, MAX_USERNAME_SIZE) > MAX_USERNAME_SIZE) { printk(KERN_WARNING "CIFS: username too long\n"); goto cifs_parse_mount_err; @@ -1611,14 +1619,15 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, } vol->password[j] = '\0'; break; + case Opt_blank_ip: + vol->UNCip = NULL; + break; case Opt_ip: string = match_strdup(args); if (string == NULL) goto out_nomem; - if (!*string) { - vol->UNCip = NULL; - } else if (strnlen(string, INET6_ADDRSTRLEN) > + if (strnlen(string, INET6_ADDRSTRLEN) > INET6_ADDRSTRLEN) { printk(KERN_WARNING "CIFS: ip address " "too long\n"); @@ -1636,12 +1645,6 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, if (string == NULL) goto out_nomem; - if (!*string) { - printk(KERN_WARNING "CIFS: invalid path to " - "network resource\n"); - goto cifs_parse_mount_err; - } - temp_len = strnlen(string, 300); if (temp_len == 300) { printk(KERN_WARNING "CIFS: UNC name too long\n"); @@ -1670,11 +1673,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, if (string == NULL) goto out_nomem; - if (!*string) { - printk(KERN_WARNING "CIFS: invalid domain" - " name\n"); - goto cifs_parse_mount_err; - } else if (strnlen(string, 256) == 256) { + if (strnlen(string, 256) == 256) { printk(KERN_WARNING "CIFS: domain name too" " long\n"); goto cifs_parse_mount_err; @@ -1693,11 +1692,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, if (string == NULL) goto out_nomem; - if (!*string) { - printk(KERN_WARNING "CIFS: srcaddr value not" - " specified\n"); - goto cifs_parse_mount_err; - } else if (!cifs_convert_address( + if (!cifs_convert_address( (struct sockaddr *)&vol->srcaddr, string, strlen(string))) { printk(KERN_WARNING "CIFS: Could not parse" @@ -1710,11 +1705,6 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, if (string == NULL) goto out_nomem; - if (!*string) { - printk(KERN_WARNING "CIFS: Invalid path" - " prefix\n"); - goto cifs_parse_mount_err; - } temp_len = strnlen(string, 1024); if (string[0] != '/') temp_len++; /* missing leading slash */ @@ -1742,11 +1732,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, if (string == NULL) goto out_nomem; - if (!*string) { - printk(KERN_WARNING "CIFS: Invalid iocharset" - " specified\n"); - goto cifs_parse_mount_err; - } else if (strnlen(string, 1024) >= 65) { + if (strnlen(string, 1024) >= 65) { printk(KERN_WARNING "CIFS: iocharset name " "too long.\n"); goto cifs_parse_mount_err; @@ -1771,11 +1757,6 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, if (string == NULL) goto out_nomem; - if (!*string) { - printk(KERN_WARNING "CIFS: No socket option" - " specified\n"); - goto cifs_parse_mount_err; - } if (strnicmp(string, "TCP_NODELAY", 11) == 0) vol->sockopt_tcp_nodelay = 1; break; @@ -1784,12 +1765,6 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, if (string == NULL) goto out_nomem; - if (!*string) { - printk(KERN_WARNING "CIFS: Invalid (empty)" - " netbiosname\n"); - break; - } - memset(vol->source_rfc1001_name, 0x20, RFC1001_NAME_LEN); /* @@ -1817,11 +1792,6 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, if (string == NULL) goto out_nomem; - if (!*string) { - printk(KERN_WARNING "CIFS: Empty server" - " netbiosname specified\n"); - break; - } /* last byte, type, is 0x20 for servr type */ memset(vol->target_rfc1001_name, 0x20, RFC1001_NAME_LEN_WITH_NULL); @@ -1848,12 +1818,6 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, if (string == NULL) goto out_nomem; - if (!*string) { - cERROR(1, "no protocol version specified" - " after vers= mount option"); - goto cifs_parse_mount_err; - } - if (strnicmp(string, "cifs", 4) == 0 || strnicmp(string, "1", 1) == 0) { /* This is the default */ @@ -1868,12 +1832,6 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, if (string == NULL) goto out_nomem; - if (!*string) { - printk(KERN_WARNING "CIFS: no security flavor" - " specified\n"); - break; - } - if (cifs_parse_security_flavors(string, vol) != 0) goto cifs_parse_mount_err; break; -- cgit v0.10.2 From 0e3d0f3d960bf5b895adcf9ffc79d2077f1411d5 Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Wed, 11 Apr 2012 20:55:18 -0700 Subject: Input: da9052 - fix memory leak in da9052_onkey_probe() If, in drivers/input/misc/da9052_onkey.c::da9052_onkey_probe(), the call to either kzalloc() or input_allocate_device() fails then we will return -ENOMEM from the function without freeing the other allocation that may have succeeded, thus we leak either the memory allocated for 'onkey' or the memory allocated for 'input_dev' if one succeeds and the other fails. Fix that by jumping to the 'err_free_mem' label at the end of the function that properly cleans up rather than returning directly. Signed-off-by: Jesper Juhl Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/misc/da9052_onkey.c b/drivers/input/misc/da9052_onkey.c index 34aebb8..3c843cd 100644 --- a/drivers/input/misc/da9052_onkey.c +++ b/drivers/input/misc/da9052_onkey.c @@ -95,7 +95,8 @@ static int __devinit da9052_onkey_probe(struct platform_device *pdev) input_dev = input_allocate_device(); if (!onkey || !input_dev) { dev_err(&pdev->dev, "Failed to allocate memory\n"); - return -ENOMEM; + error = -ENOMEM; + goto err_free_mem; } onkey->input = input_dev; -- cgit v0.10.2 From f9309d1bf220122659328040db47eede32514656 Mon Sep 17 00:00:00 2001 From: Joonyoung Shim Date: Thu, 5 Apr 2012 20:49:22 +0900 Subject: drm/exynos: remove unnecessary type conversion of hdmi and mixer When the void pointer type variable is assigned to the specific pointer type variable, don't need to do type conversion. Signed-off-by: Joonyoung Shim Signed-off-by: Kyungmin Park Signed-off-by: Inki Dae diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index 575a8cb..0a71317 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -1194,7 +1194,7 @@ static int hdmi_conf_index(struct hdmi_context *hdata, static bool hdmi_is_connected(void *ctx) { - struct hdmi_context *hdata = (struct hdmi_context *)ctx; + struct hdmi_context *hdata = ctx; u32 val = hdmi_reg_read(hdata, HDMI_HPD_STATUS); if (val) @@ -1207,7 +1207,7 @@ static int hdmi_get_edid(void *ctx, struct drm_connector *connector, u8 *edid, int len) { struct edid *raw_edid; - struct hdmi_context *hdata = (struct hdmi_context *)ctx; + struct hdmi_context *hdata = ctx; DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); @@ -1275,7 +1275,7 @@ static int hdmi_v14_check_timing(struct fb_videomode *check_timing) static int hdmi_check_timing(void *ctx, void *timing) { - struct hdmi_context *hdata = (struct hdmi_context *)ctx; + struct hdmi_context *hdata = ctx; struct fb_videomode *check_timing = timing; DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); @@ -1914,7 +1914,7 @@ static void hdmi_mode_fixup(void *ctx, struct drm_connector *connector, struct drm_display_mode *adjusted_mode) { struct drm_display_mode *m; - struct hdmi_context *hdata = (struct hdmi_context *)ctx; + struct hdmi_context *hdata = ctx; int index; DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); @@ -1951,7 +1951,7 @@ static void hdmi_mode_fixup(void *ctx, struct drm_connector *connector, static void hdmi_mode_set(void *ctx, void *mode) { - struct hdmi_context *hdata = (struct hdmi_context *)ctx; + struct hdmi_context *hdata = ctx; int conf_idx; DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); @@ -1974,7 +1974,7 @@ static void hdmi_get_max_resol(void *ctx, unsigned int *width, static void hdmi_commit(void *ctx) { - struct hdmi_context *hdata = (struct hdmi_context *)ctx; + struct hdmi_context *hdata = ctx; DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); @@ -1985,7 +1985,7 @@ static void hdmi_commit(void *ctx) static void hdmi_disable(void *ctx) { - struct hdmi_context *hdata = (struct hdmi_context *)ctx; + struct hdmi_context *hdata = ctx; DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); @@ -2020,7 +2020,7 @@ static void hdmi_hotplug_func(struct work_struct *work) static irqreturn_t hdmi_irq_handler(int irq, void *arg) { struct exynos_drm_hdmi_context *ctx = arg; - struct hdmi_context *hdata = (struct hdmi_context *)ctx->ctx; + struct hdmi_context *hdata = ctx->ctx; u32 intc_flag; intc_flag = hdmi_reg_read(hdata, HDMI_INTC_FLAG); @@ -2173,7 +2173,7 @@ static int hdmi_runtime_suspend(struct device *dev) DRM_DEBUG_KMS("%s\n", __func__); - hdmi_resource_poweroff((struct hdmi_context *)ctx->ctx); + hdmi_resource_poweroff(ctx->ctx); return 0; } @@ -2184,7 +2184,7 @@ static int hdmi_runtime_resume(struct device *dev) DRM_DEBUG_KMS("%s\n", __func__); - hdmi_resource_poweron((struct hdmi_context *)ctx->ctx); + hdmi_resource_poweron(ctx->ctx); return 0; } @@ -2351,7 +2351,7 @@ err_data: static int __devexit hdmi_remove(struct platform_device *pdev) { struct exynos_drm_hdmi_context *ctx = platform_get_drvdata(pdev); - struct hdmi_context *hdata = (struct hdmi_context *)ctx->ctx; + struct hdmi_context *hdata = ctx->ctx; DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index 4d5f41e..495a7af 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -771,8 +771,7 @@ static void mixer_finish_pageflip(struct drm_device *drm_dev, int crtc) static irqreturn_t mixer_irq_handler(int irq, void *arg) { struct exynos_drm_hdmi_context *drm_hdmi_ctx = arg; - struct mixer_context *ctx = - (struct mixer_context *)drm_hdmi_ctx->ctx; + struct mixer_context *ctx = drm_hdmi_ctx->ctx; struct mixer_resources *res = &ctx->mixer_res; u32 val, val_base; @@ -902,7 +901,7 @@ static int mixer_runtime_resume(struct device *dev) DRM_DEBUG_KMS("resume - start\n"); - mixer_resource_poweron((struct mixer_context *)ctx->ctx); + mixer_resource_poweron(ctx->ctx); return 0; } @@ -913,7 +912,7 @@ static int mixer_runtime_suspend(struct device *dev) DRM_DEBUG_KMS("suspend - start\n"); - mixer_resource_poweroff((struct mixer_context *)ctx->ctx); + mixer_resource_poweroff(ctx->ctx); return 0; } @@ -926,8 +925,7 @@ static const struct dev_pm_ops mixer_pm_ops = { static int __devinit mixer_resources_init(struct exynos_drm_hdmi_context *ctx, struct platform_device *pdev) { - struct mixer_context *mixer_ctx = - (struct mixer_context *)ctx->ctx; + struct mixer_context *mixer_ctx = ctx->ctx; struct device *dev = &pdev->dev; struct mixer_resources *mixer_res = &mixer_ctx->mixer_res; struct resource *res; @@ -1093,7 +1091,7 @@ static int mixer_remove(struct platform_device *pdev) struct device *dev = &pdev->dev; struct exynos_drm_hdmi_context *drm_hdmi_ctx = platform_get_drvdata(pdev); - struct mixer_context *ctx = (struct mixer_context *)drm_hdmi_ctx->ctx; + struct mixer_context *ctx = drm_hdmi_ctx->ctx; dev_info(dev, "remove successful\n"); -- cgit v0.10.2 From 46da222be7873bd1c79fa110d6988a2b826f7dee Mon Sep 17 00:00:00 2001 From: Joonyoung Shim Date: Thu, 5 Apr 2012 20:49:23 +0900 Subject: drm/exynos: remove unused codes in hdmi and mixer Some members in struct mixer_context aren't used and the define HDMI_OVERLAY_NUMBER is unused in hdmi driver, remove them. Signed-off-by: Joonyoung Shim Signed-off-by: Kyungmin Park Signed-off-by: Inki Dae diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index 0a71317..340424f 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -40,7 +40,6 @@ #include "exynos_hdmi.h" -#define HDMI_OVERLAY_NUMBER 3 #define MAX_WIDTH 1920 #define MAX_HEIGHT 1080 #define get_hdmi_context(dev) platform_get_drvdata(to_platform_device(dev)) diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index 495a7af..baad0dd 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -75,13 +75,10 @@ struct mixer_resources { }; struct mixer_context { - struct fb_videomode *default_timing; unsigned int default_win; - unsigned int default_bpp; unsigned int irq; int pipe; bool interlace; - bool vp_enabled; struct mixer_resources mixer_res; struct hdmi_win_data win_data[HDMI_OVERLAY_NUMBER]; -- cgit v0.10.2 From a634dd54c05636a89a272e27e59118374065975e Mon Sep 17 00:00:00 2001 From: Joonyoung Shim Date: Thu, 5 Apr 2012 20:49:24 +0900 Subject: drm/exynos: rename s/HDMI_OVERLAY_NUMBER/MIXER_WIN_NR HDMI_OVERLAY_NUMBER is specific of mixer driver and be used "windows layer" term in exynos user manaual, so rename it. Signed-off-by: Joonyoung Shim Signed-off-by: Kyungmin Park Signed-off-by: Inki Dae diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index baad0dd..9c99514 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -37,7 +37,7 @@ #include "exynos_drm_drv.h" #include "exynos_drm_hdmi.h" -#define HDMI_OVERLAY_NUMBER 3 +#define MIXER_WIN_NR 3 #define get_mixer_context(dev) platform_get_drvdata(to_platform_device(dev)) @@ -81,7 +81,7 @@ struct mixer_context { bool interlace; struct mixer_resources mixer_res; - struct hdmi_win_data win_data[HDMI_OVERLAY_NUMBER]; + struct hdmi_win_data win_data[MIXER_WIN_NR]; }; static const u8 filter_y_horiz_tap8[] = { @@ -642,7 +642,7 @@ static void mixer_win_mode_set(void *ctx, if (win == DEFAULT_ZPOS) win = mixer_ctx->default_win; - if (win < 0 || win > HDMI_OVERLAY_NUMBER) { + if (win < 0 || win > MIXER_WIN_NR) { DRM_ERROR("overlay plane[%d] is wrong\n", win); return; } @@ -682,7 +682,7 @@ static void mixer_win_commit(void *ctx, int zpos) if (win == DEFAULT_ZPOS) win = mixer_ctx->default_win; - if (win < 0 || win > HDMI_OVERLAY_NUMBER) { + if (win < 0 || win > MIXER_WIN_NR) { DRM_ERROR("overlay plane[%d] is wrong\n", win); return; } @@ -705,7 +705,7 @@ static void mixer_win_disable(void *ctx, int zpos) if (win == DEFAULT_ZPOS) win = mixer_ctx->default_win; - if (win < 0 || win > HDMI_OVERLAY_NUMBER) { + if (win < 0 || win > MIXER_WIN_NR) { DRM_ERROR("overlay plane[%d] is wrong\n", win); return; } -- cgit v0.10.2 From a2ee151b6b6863d108552de82e02b77166ca23a8 Mon Sep 17 00:00:00 2001 From: Joonyoung Shim Date: Thu, 5 Apr 2012 20:49:25 +0900 Subject: drm/exynos: use define instead of default_win member in struct mixer_context The default_win member in struct mixer_context isn't change its value after initialized to 0, so it's better using to define. Signed-off-by: Joonyoung Shim Signed-off-by: Kyungmin Park Signed-off-by: Inki Dae diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index 9c99514..563092e 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -38,6 +38,7 @@ #include "exynos_drm_hdmi.h" #define MIXER_WIN_NR 3 +#define MIXER_DEFAULT_WIN 0 #define get_mixer_context(dev) platform_get_drvdata(to_platform_device(dev)) @@ -75,7 +76,6 @@ struct mixer_resources { }; struct mixer_context { - unsigned int default_win; unsigned int irq; int pipe; bool interlace; @@ -640,7 +640,7 @@ static void mixer_win_mode_set(void *ctx, win = overlay->zpos; if (win == DEFAULT_ZPOS) - win = mixer_ctx->default_win; + win = MIXER_DEFAULT_WIN; if (win < 0 || win > MIXER_WIN_NR) { DRM_ERROR("overlay plane[%d] is wrong\n", win); @@ -680,7 +680,7 @@ static void mixer_win_commit(void *ctx, int zpos) DRM_DEBUG_KMS("[%d] %s, win: %d\n", __LINE__, __func__, win); if (win == DEFAULT_ZPOS) - win = mixer_ctx->default_win; + win = MIXER_DEFAULT_WIN; if (win < 0 || win > MIXER_WIN_NR) { DRM_ERROR("overlay plane[%d] is wrong\n", win); @@ -703,7 +703,7 @@ static void mixer_win_disable(void *ctx, int zpos) DRM_DEBUG_KMS("[%d] %s, win: %d\n", __LINE__, __func__, win); if (win == DEFAULT_ZPOS) - win = mixer_ctx->default_win; + win = MIXER_DEFAULT_WIN; if (win < 0 || win > MIXER_WIN_NR) { DRM_ERROR("overlay plane[%d] is wrong\n", win); -- cgit v0.10.2 From 578b6065adc8805a8774e4bf3145e18de123f8b2 Mon Sep 17 00:00:00 2001 From: Joonyoung Shim Date: Thu, 5 Apr 2012 20:49:26 +0900 Subject: drm/exynos: fix struct for operation callback functions to driver name The mixer driver and hdmi driver have each operation callback functions and they is registered to hdmi common driver. Their struct names in hdmi common driver include display, manager and overlay. It confuses to appear whose operation and two driver cannot register same operation callback functions at the same time. Use their struct names to driver name. Signed-off-by: Joonyoung Shim Signed-off-by: Kyungmin Park Signed-off-by: Inki Dae diff --git a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c index 14eb26b..348048b 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c @@ -30,9 +30,8 @@ struct drm_hdmi_context, subdrv); /* these callback points shoud be set by specific drivers. */ -static struct exynos_hdmi_display_ops *hdmi_display_ops; -static struct exynos_hdmi_manager_ops *hdmi_manager_ops; -static struct exynos_hdmi_overlay_ops *hdmi_overlay_ops; +static struct exynos_hdmi_ops *hdmi_ops; +static struct exynos_mixer_ops *mixer_ops; struct drm_hdmi_context { struct exynos_drm_subdrv subdrv; @@ -40,31 +39,20 @@ struct drm_hdmi_context { struct exynos_drm_hdmi_context *mixer_ctx; }; -void exynos_drm_display_ops_register(struct exynos_hdmi_display_ops - *display_ops) +void exynos_hdmi_ops_register(struct exynos_hdmi_ops *ops) { DRM_DEBUG_KMS("%s\n", __FILE__); - if (display_ops) - hdmi_display_ops = display_ops; + if (ops) + hdmi_ops = ops; } -void exynos_drm_manager_ops_register(struct exynos_hdmi_manager_ops - *manager_ops) +void exynos_mixer_ops_register(struct exynos_mixer_ops *ops) { DRM_DEBUG_KMS("%s\n", __FILE__); - if (manager_ops) - hdmi_manager_ops = manager_ops; -} - -void exynos_drm_overlay_ops_register(struct exynos_hdmi_overlay_ops - *overlay_ops) -{ - DRM_DEBUG_KMS("%s\n", __FILE__); - - if (overlay_ops) - hdmi_overlay_ops = overlay_ops; + if (ops) + mixer_ops = ops; } static bool drm_hdmi_is_connected(struct device *dev) @@ -73,8 +61,8 @@ static bool drm_hdmi_is_connected(struct device *dev) DRM_DEBUG_KMS("%s\n", __FILE__); - if (hdmi_display_ops && hdmi_display_ops->is_connected) - return hdmi_display_ops->is_connected(ctx->hdmi_ctx->ctx); + if (hdmi_ops && hdmi_ops->is_connected) + return hdmi_ops->is_connected(ctx->hdmi_ctx->ctx); return false; } @@ -86,9 +74,9 @@ static int drm_hdmi_get_edid(struct device *dev, DRM_DEBUG_KMS("%s\n", __FILE__); - if (hdmi_display_ops && hdmi_display_ops->get_edid) - return hdmi_display_ops->get_edid(ctx->hdmi_ctx->ctx, - connector, edid, len); + if (hdmi_ops && hdmi_ops->get_edid) + return hdmi_ops->get_edid(ctx->hdmi_ctx->ctx, connector, edid, + len); return 0; } @@ -99,9 +87,8 @@ static int drm_hdmi_check_timing(struct device *dev, void *timing) DRM_DEBUG_KMS("%s\n", __FILE__); - if (hdmi_display_ops && hdmi_display_ops->check_timing) - return hdmi_display_ops->check_timing(ctx->hdmi_ctx->ctx, - timing); + if (hdmi_ops && hdmi_ops->check_timing) + return hdmi_ops->check_timing(ctx->hdmi_ctx->ctx, timing); return 0; } @@ -112,8 +99,8 @@ static int drm_hdmi_power_on(struct device *dev, int mode) DRM_DEBUG_KMS("%s\n", __FILE__); - if (hdmi_display_ops && hdmi_display_ops->power_on) - return hdmi_display_ops->power_on(ctx->hdmi_ctx->ctx, mode); + if (hdmi_ops && hdmi_ops->power_on) + return hdmi_ops->power_on(ctx->hdmi_ctx->ctx, mode); return 0; } @@ -134,9 +121,9 @@ static int drm_hdmi_enable_vblank(struct device *subdrv_dev) DRM_DEBUG_KMS("%s\n", __FILE__); - if (hdmi_overlay_ops && hdmi_overlay_ops->enable_vblank) - return hdmi_overlay_ops->enable_vblank(ctx->mixer_ctx->ctx, - manager->pipe); + if (mixer_ops && mixer_ops->enable_vblank) + return mixer_ops->enable_vblank(ctx->mixer_ctx->ctx, + manager->pipe); return 0; } @@ -147,8 +134,8 @@ static void drm_hdmi_disable_vblank(struct device *subdrv_dev) DRM_DEBUG_KMS("%s\n", __FILE__); - if (hdmi_overlay_ops && hdmi_overlay_ops->disable_vblank) - return hdmi_overlay_ops->disable_vblank(ctx->mixer_ctx->ctx); + if (mixer_ops && mixer_ops->disable_vblank) + return mixer_ops->disable_vblank(ctx->mixer_ctx->ctx); } static void drm_hdmi_mode_fixup(struct device *subdrv_dev, @@ -160,9 +147,9 @@ static void drm_hdmi_mode_fixup(struct device *subdrv_dev, DRM_DEBUG_KMS("%s\n", __FILE__); - if (hdmi_manager_ops && hdmi_manager_ops->mode_fixup) - hdmi_manager_ops->mode_fixup(ctx->hdmi_ctx->ctx, connector, - mode, adjusted_mode); + if (hdmi_ops && hdmi_ops->mode_fixup) + hdmi_ops->mode_fixup(ctx->hdmi_ctx->ctx, connector, mode, + adjusted_mode); } static void drm_hdmi_mode_set(struct device *subdrv_dev, void *mode) @@ -171,8 +158,8 @@ static void drm_hdmi_mode_set(struct device *subdrv_dev, void *mode) DRM_DEBUG_KMS("%s\n", __FILE__); - if (hdmi_manager_ops && hdmi_manager_ops->mode_set) - hdmi_manager_ops->mode_set(ctx->hdmi_ctx->ctx, mode); + if (hdmi_ops && hdmi_ops->mode_set) + hdmi_ops->mode_set(ctx->hdmi_ctx->ctx, mode); } static void drm_hdmi_get_max_resol(struct device *subdrv_dev, @@ -182,9 +169,8 @@ static void drm_hdmi_get_max_resol(struct device *subdrv_dev, DRM_DEBUG_KMS("%s\n", __FILE__); - if (hdmi_manager_ops && hdmi_manager_ops->get_max_resol) - hdmi_manager_ops->get_max_resol(ctx->hdmi_ctx->ctx, width, - height); + if (hdmi_ops && hdmi_ops->get_max_resol) + hdmi_ops->get_max_resol(ctx->hdmi_ctx->ctx, width, height); } static void drm_hdmi_commit(struct device *subdrv_dev) @@ -193,8 +179,8 @@ static void drm_hdmi_commit(struct device *subdrv_dev) DRM_DEBUG_KMS("%s\n", __FILE__); - if (hdmi_manager_ops && hdmi_manager_ops->commit) - hdmi_manager_ops->commit(ctx->hdmi_ctx->ctx); + if (hdmi_ops && hdmi_ops->commit) + hdmi_ops->commit(ctx->hdmi_ctx->ctx); } static void drm_hdmi_dpms(struct device *subdrv_dev, int mode) @@ -209,8 +195,8 @@ static void drm_hdmi_dpms(struct device *subdrv_dev, int mode) case DRM_MODE_DPMS_STANDBY: case DRM_MODE_DPMS_SUSPEND: case DRM_MODE_DPMS_OFF: - if (hdmi_manager_ops && hdmi_manager_ops->disable) - hdmi_manager_ops->disable(ctx->hdmi_ctx->ctx); + if (hdmi_ops && hdmi_ops->disable) + hdmi_ops->disable(ctx->hdmi_ctx->ctx); break; default: DRM_DEBUG_KMS("unkown dps mode: %d\n", mode); @@ -235,8 +221,8 @@ static void drm_mixer_mode_set(struct device *subdrv_dev, DRM_DEBUG_KMS("%s\n", __FILE__); - if (hdmi_overlay_ops && hdmi_overlay_ops->win_mode_set) - hdmi_overlay_ops->win_mode_set(ctx->mixer_ctx->ctx, overlay); + if (mixer_ops && mixer_ops->win_mode_set) + mixer_ops->win_mode_set(ctx->mixer_ctx->ctx, overlay); } static void drm_mixer_commit(struct device *subdrv_dev, int zpos) @@ -245,8 +231,8 @@ static void drm_mixer_commit(struct device *subdrv_dev, int zpos) DRM_DEBUG_KMS("%s\n", __FILE__); - if (hdmi_overlay_ops && hdmi_overlay_ops->win_commit) - hdmi_overlay_ops->win_commit(ctx->mixer_ctx->ctx, zpos); + if (mixer_ops && mixer_ops->win_commit) + mixer_ops->win_commit(ctx->mixer_ctx->ctx, zpos); } static void drm_mixer_disable(struct device *subdrv_dev, int zpos) @@ -255,8 +241,8 @@ static void drm_mixer_disable(struct device *subdrv_dev, int zpos) DRM_DEBUG_KMS("%s\n", __FILE__); - if (hdmi_overlay_ops && hdmi_overlay_ops->win_disable) - hdmi_overlay_ops->win_disable(ctx->mixer_ctx->ctx, zpos); + if (mixer_ops && mixer_ops->win_disable) + mixer_ops->win_disable(ctx->mixer_ctx->ctx, zpos); } static struct exynos_drm_overlay_ops drm_hdmi_overlay_ops = { diff --git a/drivers/gpu/drm/exynos/exynos_drm_hdmi.h b/drivers/gpu/drm/exynos/exynos_drm_hdmi.h index 44497cf..f3ae192 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_hdmi.h +++ b/drivers/gpu/drm/exynos/exynos_drm_hdmi.h @@ -38,15 +38,15 @@ struct exynos_drm_hdmi_context { void *ctx; }; -struct exynos_hdmi_display_ops { +struct exynos_hdmi_ops { + /* display */ bool (*is_connected)(void *ctx); int (*get_edid)(void *ctx, struct drm_connector *connector, u8 *edid, int len); int (*check_timing)(void *ctx, void *timing); int (*power_on)(void *ctx, int mode); -}; -struct exynos_hdmi_manager_ops { + /* manager */ void (*mode_fixup)(void *ctx, struct drm_connector *connector, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode); @@ -57,22 +57,17 @@ struct exynos_hdmi_manager_ops { void (*disable)(void *ctx); }; -struct exynos_hdmi_overlay_ops { +struct exynos_mixer_ops { + /* manager */ int (*enable_vblank)(void *ctx, int pipe); void (*disable_vblank)(void *ctx); + + /* overlay */ void (*win_mode_set)(void *ctx, struct exynos_drm_overlay *overlay); void (*win_commit)(void *ctx, int zpos); void (*win_disable)(void *ctx, int zpos); }; -extern struct platform_driver hdmi_driver; -extern struct platform_driver mixer_driver; - -void exynos_drm_display_ops_register(struct exynos_hdmi_display_ops - *display_ops); -void exynos_drm_manager_ops_register(struct exynos_hdmi_manager_ops - *manager_ops); -void exynos_drm_overlay_ops_register(struct exynos_hdmi_overlay_ops - *overlay_ops); - +void exynos_hdmi_ops_register(struct exynos_hdmi_ops *ops); +void exynos_mixer_ops_register(struct exynos_mixer_ops *ops); #endif diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index 340424f..b003538 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -1311,13 +1311,6 @@ static int hdmi_display_power_on(void *ctx, int mode) return 0; } -static struct exynos_hdmi_display_ops display_ops = { - .is_connected = hdmi_is_connected, - .get_edid = hdmi_get_edid, - .check_timing = hdmi_check_timing, - .power_on = hdmi_display_power_on, -}; - static void hdmi_set_acr(u32 freq, u8 *acr) { u32 n, cts; @@ -1995,7 +1988,14 @@ static void hdmi_disable(void *ctx) } } -static struct exynos_hdmi_manager_ops manager_ops = { +static struct exynos_hdmi_ops hdmi_ops = { + /* display */ + .is_connected = hdmi_is_connected, + .get_edid = hdmi_get_edid, + .check_timing = hdmi_check_timing, + .power_on = hdmi_display_power_on, + + /* manager */ .mode_fixup = hdmi_mode_fixup, .mode_set = hdmi_mode_set, .get_max_resol = hdmi_get_max_resol, @@ -2321,8 +2321,7 @@ static int __devinit hdmi_probe(struct platform_device *pdev) hdata->irq = res->start; /* register specific callbacks to common hdmi. */ - exynos_drm_display_ops_register(&display_ops); - exynos_drm_manager_ops_register(&manager_ops); + exynos_hdmi_ops_register(&hdmi_ops); hdmi_resource_poweron(hdata); diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index 563092e..e15438c 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -719,9 +719,12 @@ static void mixer_win_disable(void *ctx, int zpos) spin_unlock_irqrestore(&res->reg_slock, flags); } -static struct exynos_hdmi_overlay_ops overlay_ops = { +static struct exynos_mixer_ops mixer_ops = { + /* manager */ .enable_vblank = mixer_enable_vblank, .disable_vblank = mixer_disable_vblank, + + /* overlay */ .win_mode_set = mixer_win_mode_set, .win_commit = mixer_win_commit, .win_disable = mixer_win_disable, @@ -1071,7 +1074,7 @@ static int __devinit mixer_probe(struct platform_device *pdev) goto fail; /* register specific callback point to common hdmi. */ - exynos_drm_overlay_ops_register(&overlay_ops); + exynos_mixer_ops_register(&mixer_ops); mixer_resource_poweron(ctx); -- cgit v0.10.2 From 677e84c1b5c8533ea351a9556308071ca47a1eb2 Mon Sep 17 00:00:00 2001 From: Joonyoung Shim Date: Thu, 5 Apr 2012 20:49:27 +0900 Subject: drm/exynos: fix to pointer manager member of struct exynos_drm_subdrv The struct exynos_drm_manager has to exist for exynos drm sub driver using encoder and connector. If it isn't NULL to member of struct exynos_drm_subdrv, will create encoder and connector else will not. And the is_local member also doesn't need. Signed-off-by: Joonyoung Shim Signed-off-by: Kyungmin Park Signed-off-by: Inki Dae diff --git a/drivers/gpu/drm/exynos/exynos_drm_core.c b/drivers/gpu/drm/exynos/exynos_drm_core.c index 411832e..eaf630d 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_core.c +++ b/drivers/gpu/drm/exynos/exynos_drm_core.c @@ -54,16 +54,18 @@ static int exynos_drm_subdrv_probe(struct drm_device *dev, * * P.S. note that this driver is considered for modularization. */ - ret = subdrv->probe(dev, subdrv->manager.dev); + ret = subdrv->probe(dev, subdrv->dev); if (ret) return ret; } - if (subdrv->is_local) + if (!subdrv->manager) return 0; + subdrv->manager->dev = subdrv->dev; + /* create and initialize a encoder for this sub driver. */ - encoder = exynos_drm_encoder_create(dev, &subdrv->manager, + encoder = exynos_drm_encoder_create(dev, subdrv->manager, (1 << MAX_CRTC) - 1); if (!encoder) { DRM_ERROR("failed to create encoder\n"); @@ -186,7 +188,7 @@ int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file) list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) { if (subdrv->open) { - ret = subdrv->open(dev, subdrv->manager.dev, file); + ret = subdrv->open(dev, subdrv->dev, file); if (ret) goto err; } @@ -197,7 +199,7 @@ int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file) err: list_for_each_entry_reverse(subdrv, &subdrv->list, list) { if (subdrv->close) - subdrv->close(dev, subdrv->manager.dev, file); + subdrv->close(dev, subdrv->dev, file); } return ret; } @@ -209,7 +211,7 @@ void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file) list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) { if (subdrv->close) - subdrv->close(dev, subdrv->manager.dev, file); + subdrv->close(dev, subdrv->dev, file); } } EXPORT_SYMBOL_GPL(exynos_drm_subdrv_close); diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h index fbd0a23..1d81417 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -225,24 +225,25 @@ struct exynos_drm_private { * Exynos drm sub driver structure. * * @list: sub driver has its own list object to register to exynos drm driver. + * @dev: pointer to device object for subdrv device driver. * @drm_dev: pointer to drm_device and this pointer would be set * when sub driver calls exynos_drm_subdrv_register(). - * @is_local: appear encoder and connector disrelated device. + * @manager: subdrv has its own manager to control a hardware appropriately + * and we can access a hardware drawing on this manager. * @probe: this callback would be called by exynos drm driver after * subdrv is registered to it. * @remove: this callback is used to release resources created * by probe callback. * @open: this would be called with drm device file open. * @close: this would be called with drm device file close. - * @manager: subdrv has its own manager to control a hardware appropriately - * and we can access a hardware drawing on this manager. * @encoder: encoder object owned by this sub driver. * @connector: connector object owned by this sub driver. */ struct exynos_drm_subdrv { struct list_head list; + struct device *dev; struct drm_device *drm_dev; - bool is_local; + struct exynos_drm_manager *manager; int (*probe)(struct drm_device *drm_dev, struct device *dev); void (*remove)(struct drm_device *dev); @@ -251,7 +252,6 @@ struct exynos_drm_subdrv { void (*close)(struct drm_device *drm_dev, struct device *dev, struct drm_file *file); - struct exynos_drm_manager manager; struct drm_encoder *encoder; struct drm_connector *connector; }; diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c index ecb6db2..29fdbfe 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c @@ -172,7 +172,7 @@ static void fimd_dpms(struct device *subdrv_dev, int mode) static void fimd_apply(struct device *subdrv_dev) { struct fimd_context *ctx = get_fimd_context(subdrv_dev); - struct exynos_drm_manager *mgr = &ctx->subdrv.manager; + struct exynos_drm_manager *mgr = ctx->subdrv.manager; struct exynos_drm_manager_ops *mgr_ops = mgr->ops; struct exynos_drm_overlay_ops *ovl_ops = mgr->overlay_ops; struct fimd_win_data *win_data; @@ -577,6 +577,13 @@ static struct exynos_drm_overlay_ops fimd_overlay_ops = { .disable = fimd_win_disable, }; +static struct exynos_drm_manager fimd_manager = { + .pipe = -1, + .ops = &fimd_manager_ops, + .overlay_ops = &fimd_overlay_ops, + .display_ops = &fimd_display_ops, +}; + static void fimd_finish_pageflip(struct drm_device *drm_dev, int crtc) { struct exynos_drm_private *dev_priv = drm_dev->dev_private; @@ -628,7 +635,7 @@ static irqreturn_t fimd_irq_handler(int irq, void *dev_id) struct fimd_context *ctx = (struct fimd_context *)dev_id; struct exynos_drm_subdrv *subdrv = &ctx->subdrv; struct drm_device *drm_dev = subdrv->drm_dev; - struct exynos_drm_manager *manager = &subdrv->manager; + struct exynos_drm_manager *manager = subdrv->manager; u32 val; val = readl(ctx->regs + VIDINTCON1); @@ -744,7 +751,7 @@ static void fimd_clear_win(struct fimd_context *ctx, int win) static int fimd_power_on(struct fimd_context *ctx, bool enable) { struct exynos_drm_subdrv *subdrv = &ctx->subdrv; - struct device *dev = subdrv->manager.dev; + struct device *dev = subdrv->dev; DRM_DEBUG_KMS("%s\n", __FILE__); @@ -867,13 +874,10 @@ static int __devinit fimd_probe(struct platform_device *pdev) subdrv = &ctx->subdrv; + subdrv->dev = dev; + subdrv->manager = &fimd_manager; subdrv->probe = fimd_subdrv_probe; subdrv->remove = fimd_subdrv_remove; - subdrv->manager.pipe = -1; - subdrv->manager.ops = &fimd_manager_ops; - subdrv->manager.overlay_ops = &fimd_overlay_ops; - subdrv->manager.display_ops = &fimd_display_ops; - subdrv->manager.dev = dev; mutex_init(&ctx->lock); diff --git a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c index 348048b..3424463 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c @@ -117,7 +117,7 @@ static int drm_hdmi_enable_vblank(struct device *subdrv_dev) { struct drm_hdmi_context *ctx = to_context(subdrv_dev); struct exynos_drm_subdrv *subdrv = &ctx->subdrv; - struct exynos_drm_manager *manager = &subdrv->manager; + struct exynos_drm_manager *manager = subdrv->manager; DRM_DEBUG_KMS("%s\n", __FILE__); @@ -251,6 +251,12 @@ static struct exynos_drm_overlay_ops drm_hdmi_overlay_ops = { .disable = drm_mixer_disable, }; +static struct exynos_drm_manager hdmi_manager = { + .pipe = -1, + .ops = &drm_hdmi_manager_ops, + .overlay_ops = &drm_hdmi_overlay_ops, + .display_ops = &drm_hdmi_display_ops, +}; static int hdmi_subdrv_probe(struct drm_device *drm_dev, struct device *dev) @@ -318,12 +324,9 @@ static int __devinit exynos_drm_hdmi_probe(struct platform_device *pdev) subdrv = &ctx->subdrv; + subdrv->dev = dev; + subdrv->manager = &hdmi_manager; subdrv->probe = hdmi_subdrv_probe; - subdrv->manager.pipe = -1; - subdrv->manager.ops = &drm_hdmi_manager_ops; - subdrv->manager.overlay_ops = &drm_hdmi_overlay_ops; - subdrv->manager.display_ops = &drm_hdmi_display_ops; - subdrv->manager.dev = dev; platform_set_drvdata(pdev, subdrv); diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c index 8e1339f..7b9c153 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c @@ -199,7 +199,7 @@ static void vidi_dpms(struct device *subdrv_dev, int mode) static void vidi_apply(struct device *subdrv_dev) { struct vidi_context *ctx = get_vidi_context(subdrv_dev); - struct exynos_drm_manager *mgr = &ctx->subdrv.manager; + struct exynos_drm_manager *mgr = ctx->subdrv.manager; struct exynos_drm_manager_ops *mgr_ops = mgr->ops; struct exynos_drm_overlay_ops *ovl_ops = mgr->overlay_ops; struct vidi_win_data *win_data; @@ -374,6 +374,13 @@ static struct exynos_drm_overlay_ops vidi_overlay_ops = { .disable = vidi_win_disable, }; +static struct exynos_drm_manager vidi_manager = { + .pipe = -1, + .ops = &vidi_manager_ops, + .overlay_ops = &vidi_overlay_ops, + .display_ops = &vidi_display_ops, +}; + static void vidi_finish_pageflip(struct drm_device *drm_dev, int crtc) { struct exynos_drm_private *dev_priv = drm_dev->dev_private; @@ -425,7 +432,7 @@ static void vidi_fake_vblank_handler(struct work_struct *work) struct vidi_context *ctx = container_of(work, struct vidi_context, work); struct exynos_drm_subdrv *subdrv = &ctx->subdrv; - struct exynos_drm_manager *manager = &subdrv->manager; + struct exynos_drm_manager *manager = subdrv->manager; if (manager->pipe < 0) return; @@ -471,7 +478,7 @@ static void vidi_subdrv_remove(struct drm_device *drm_dev) static int vidi_power_on(struct vidi_context *ctx, bool enable) { struct exynos_drm_subdrv *subdrv = &ctx->subdrv; - struct device *dev = subdrv->manager.dev; + struct device *dev = subdrv->dev; DRM_DEBUG_KMS("%s\n", __FILE__); @@ -611,13 +618,10 @@ static int __devinit vidi_probe(struct platform_device *pdev) ctx->raw_edid = (struct edid *)fake_edid_info; subdrv = &ctx->subdrv; + subdrv->dev = dev; + subdrv->manager = &vidi_manager; subdrv->probe = vidi_subdrv_probe; subdrv->remove = vidi_subdrv_remove; - subdrv->manager.pipe = -1; - subdrv->manager.ops = &vidi_manager_ops; - subdrv->manager.overlay_ops = &vidi_overlay_ops; - subdrv->manager.display_ops = &vidi_display_ops; - subdrv->manager.dev = dev; mutex_init(&ctx->lock); -- cgit v0.10.2 From 9e41dd35b39c2cf40767332b8f914d7afe25cc40 Mon Sep 17 00:00:00 2001 From: Andrei Warkentin Date: Thu, 12 Apr 2012 15:55:21 +1000 Subject: MD: Bitmap version cleanup. bitmap_new_disk_sb() would still create V3 bitmap superblock with host-endian layout. Perhaps I'm confused, but shouldn't bitmap_new_disk_sb() be creating a V4 bitmap superblock instead, that is portable, as per comment in bitmap.h? Signed-off-by: Andrei Warkentin Signed-off-by: NeilBrown diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index 3d0dfa7..1c264a7 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -539,9 +539,6 @@ static int bitmap_new_disk_sb(struct bitmap *bitmap) bitmap->events_cleared = bitmap->mddev->events; sb->events_cleared = cpu_to_le64(bitmap->mddev->events); - bitmap->flags |= BITMAP_HOSTENDIAN; - sb->version = cpu_to_le32(BITMAP_MAJOR_HOSTENDIAN); - kunmap_atomic(sb); return 0; -- cgit v0.10.2 From 038d4fef376bc494d4f11072d2ab248414b7d568 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 11 Apr 2012 17:18:12 +0200 Subject: ALSA: hda/realtek - Fix GPIO1 setup for Acer Aspire 4930 & co Add GPIO1 setup explicitly for Acer Aspire 493x & co. This could be set by alc_auto_init_amp(), but it's safer to set it more explicitly in the fixup table. Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index e7b2b83..4eec215 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -5269,7 +5269,9 @@ static const struct alc_fixup alc882_fixups[] = { { 0x16, 0x99130111 }, /* CLFE speaker */ { 0x17, 0x99130112 }, /* surround speaker */ { } - } + }, + .chained = true, + .chain_id = ALC882_FIXUP_GPIO1, }, [ALC882_FIXUP_ACER_ASPIRE_8930G] = { .type = ALC_FIXUP_PINS, @@ -5312,7 +5314,9 @@ static const struct alc_fixup alc882_fixups[] = { { 0x20, AC_VERB_SET_COEF_INDEX, 0x07 }, { 0x20, AC_VERB_SET_PROC_COEF, 0x3050 }, { } - } + }, + .chained = true, + .chain_id = ALC882_FIXUP_GPIO1, }, [ALC885_FIXUP_MACPRO_GPIO] = { .type = ALC_FIXUP_FUNC, -- cgit v0.10.2 From f4380a915823dbed0bf8e3cf502ebcf2b7c7f833 Mon Sep 17 00:00:00 2001 From: majianpeng Date: Thu, 12 Apr 2012 16:04:47 +1000 Subject: md/raid1,raid10: Fix calculation of 'vcnt' when processing error recovery. If r1bio->sectors % 8 != 0,then the memcmp and a later memcpy will omit the last bio_vec. This is suitable for any stable kernel since 3.1 when bad-block management was introduced. Cc: stable@vger.kernel.org Signed-off-by: majianpeng Signed-off-by: NeilBrown diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index d35e4c9..15dd59b 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1712,6 +1712,7 @@ static int process_checks(struct r1bio *r1_bio) struct r1conf *conf = mddev->private; int primary; int i; + int vcnt; for (primary = 0; primary < conf->raid_disks * 2; primary++) if (r1_bio->bios[primary]->bi_end_io == end_sync_read && @@ -1721,9 +1722,9 @@ static int process_checks(struct r1bio *r1_bio) break; } r1_bio->read_disk = primary; + vcnt = (r1_bio->sectors + PAGE_SIZE / 512 - 1) >> (PAGE_SHIFT - 9); for (i = 0; i < conf->raid_disks * 2; i++) { int j; - int vcnt = r1_bio->sectors >> (PAGE_SHIFT- 9); struct bio *pbio = r1_bio->bios[primary]; struct bio *sbio = r1_bio->bios[i]; int size; diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index fff7821..c8dbb84 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1788,6 +1788,7 @@ static void sync_request_write(struct mddev *mddev, struct r10bio *r10_bio) struct r10conf *conf = mddev->private; int i, first; struct bio *tbio, *fbio; + int vcnt; atomic_set(&r10_bio->remaining, 1); @@ -1802,10 +1803,10 @@ static void sync_request_write(struct mddev *mddev, struct r10bio *r10_bio) first = i; fbio = r10_bio->devs[i].bio; + vcnt = (r10_bio->sectors + (PAGE_SIZE >> 9) - 1) >> (PAGE_SHIFT - 9); /* now find blocks with errors */ for (i=0 ; i < conf->copies ; i++) { int j, d; - int vcnt = r10_bio->sectors >> (PAGE_SHIFT-9); tbio = r10_bio->devs[i].bio; @@ -1871,7 +1872,6 @@ static void sync_request_write(struct mddev *mddev, struct r10bio *r10_bio) */ for (i = 0; i < conf->copies; i++) { int j, d; - int vcnt = r10_bio->sectors >> (PAGE_SHIFT-9); tbio = r10_bio->devs[i].repl_bio; if (!tbio || !tbio->bi_end_io) -- cgit v0.10.2 From afbaa90b80b1ec66e5137cc3824746bfdf559b18 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 12 Apr 2012 16:05:06 +1000 Subject: md/bitmap: prevent bitmap_daemon_work running while initialising bitmap If a bitmap is added while the array is active, it is possible for bitmap_daemon_work to run while the bitmap is being initialised. This is particularly a problem if bitmap_daemon_work sees bitmap->filemap as non-NULL before it has been filled in properly. So hold bitmap_info.mutex while filling in ->filemap to prevent problems. This patch is suitable for any -stable kernel, though it might not apply cleanly before about 3.1. Cc: stable@vger.kernel.org Signed-off-by: NeilBrown diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index 1c264a7..97e73e5 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -1785,7 +1785,9 @@ int bitmap_load(struct mddev *mddev) * re-add of a missing device */ start = mddev->recovery_cp; + mutex_lock(&mddev->bitmap_info.mutex); err = bitmap_init_from_disk(bitmap, start); + mutex_unlock(&mddev->bitmap_info.mutex); if (err) goto out; -- cgit v0.10.2 From 6fa6c8e25e95bdc73e92e4c96b8e3299169b616e Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Wed, 15 Feb 2012 15:06:08 -0700 Subject: irq_domain: Move irq_virq_count into NOMAP revmap This patch replaces the old global setting of irq_virq_count that is only used by the NOMAP mapping and instead uses a revmap_data property so that the maximum NOMAP allocation can be set per NOMAP irq_domain. There is exactly one user of irq_virq_count in-tree right now: PS3. Also, irq_virq_count is only useful for the NOMAP mapping. So, instead of having a single global irq_virq_count values, this change drops it entirely and added a max_irq argument to irq_domain_add_nomap(). That makes it a property of an individual nomap irq domain instead of a global system settting. Signed-off-by: Grant Likely Tested-by: Benjamin Herrenschmidt Cc: Thomas Gleixner Cc: Milton Miller diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c index db360fc..d09f3e8 100644 --- a/arch/powerpc/platforms/cell/axon_msi.c +++ b/arch/powerpc/platforms/cell/axon_msi.c @@ -392,7 +392,7 @@ static int axon_msi_probe(struct platform_device *device) } memset(msic->fifo_virt, 0xff, MSIC_FIFO_SIZE_BYTES); - msic->irq_domain = irq_domain_add_nomap(dn, &msic_host_ops, msic); + msic->irq_domain = irq_domain_add_nomap(dn, 0, &msic_host_ops, msic); if (!msic->irq_domain) { printk(KERN_ERR "axon_msi: couldn't allocate irq_domain for %s\n", dn->full_name); diff --git a/arch/powerpc/platforms/cell/beat_interrupt.c b/arch/powerpc/platforms/cell/beat_interrupt.c index e5c3a2c..f9a48af 100644 --- a/arch/powerpc/platforms/cell/beat_interrupt.c +++ b/arch/powerpc/platforms/cell/beat_interrupt.c @@ -239,7 +239,7 @@ void __init beatic_init_IRQ(void) ppc_md.get_irq = beatic_get_irq; /* Allocate an irq host */ - beatic_host = irq_domain_add_nomap(NULL, &beatic_pic_host_ops, NULL); + beatic_host = irq_domain_add_nomap(NULL, 0, &beatic_pic_host_ops, NULL); BUG_ON(beatic_host == NULL); irq_set_default_host(beatic_host); } diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c index a81e5a8..b4ddaa3 100644 --- a/arch/powerpc/platforms/powermac/smp.c +++ b/arch/powerpc/platforms/powermac/smp.c @@ -192,7 +192,7 @@ static int psurge_secondary_ipi_init(void) { int rc = -ENOMEM; - psurge_host = irq_domain_add_nomap(NULL, &psurge_host_ops, NULL); + psurge_host = irq_domain_add_nomap(NULL, 0, &psurge_host_ops, NULL); if (psurge_host) psurge_secondary_virq = irq_create_direct_mapping(psurge_host); diff --git a/arch/powerpc/platforms/ps3/interrupt.c b/arch/powerpc/platforms/ps3/interrupt.c index 2a4ff86..5f3b232 100644 --- a/arch/powerpc/platforms/ps3/interrupt.c +++ b/arch/powerpc/platforms/ps3/interrupt.c @@ -753,9 +753,8 @@ void __init ps3_init_IRQ(void) unsigned cpu; struct irq_domain *host; - host = irq_domain_add_nomap(NULL, &ps3_host_ops, NULL); + host = irq_domain_add_nomap(NULL, PS3_PLUG_MAX + 1, &ps3_host_ops, NULL); irq_set_default_host(host); - irq_set_virq_count(PS3_PLUG_MAX + 1); for_each_possible_cpu(cpu) { struct ps3_private *pd = &per_cpu(ps3_private, cpu); diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h index ac17b9b..c65740d 100644 --- a/include/linux/irqdomain.h +++ b/include/linux/irqdomain.h @@ -98,6 +98,9 @@ struct irq_domain { unsigned int size; unsigned int *revmap; } linear; + struct { + unsigned int max_irq; + } nomap; struct radix_tree_root tree; } revmap_data; const struct irq_domain_ops *ops; @@ -120,6 +123,7 @@ struct irq_domain *irq_domain_add_linear(struct device_node *of_node, const struct irq_domain_ops *ops, void *host_data); struct irq_domain *irq_domain_add_nomap(struct device_node *of_node, + unsigned int max_irq, const struct irq_domain_ops *ops, void *host_data); struct irq_domain *irq_domain_add_tree(struct device_node *of_node, @@ -128,7 +132,6 @@ struct irq_domain *irq_domain_add_tree(struct device_node *of_node, extern struct irq_domain *irq_find_host(struct device_node *node); extern void irq_set_default_host(struct irq_domain *host); -extern void irq_set_virq_count(unsigned int count); static inline struct irq_domain *irq_domain_add_legacy_isa( struct device_node *of_node, @@ -140,7 +143,6 @@ static inline struct irq_domain *irq_domain_add_legacy_isa( } extern struct irq_domain *irq_find_host(struct device_node *node); extern void irq_set_default_host(struct irq_domain *host); -extern void irq_set_virq_count(unsigned int count); extern unsigned int irq_create_mapping(struct irq_domain *host, diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index eb05e40..d34413e 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -23,7 +23,6 @@ static LIST_HEAD(irq_domain_list); static DEFINE_MUTEX(irq_domain_mutex); static DEFINE_MUTEX(revmap_trees_mutex); -static unsigned int irq_virq_count = NR_IRQS; static struct irq_domain *irq_default_domain; /** @@ -184,13 +183,16 @@ struct irq_domain *irq_domain_add_linear(struct device_node *of_node, } struct irq_domain *irq_domain_add_nomap(struct device_node *of_node, + unsigned int max_irq, const struct irq_domain_ops *ops, void *host_data) { struct irq_domain *domain = irq_domain_alloc(of_node, IRQ_DOMAIN_MAP_NOMAP, ops, host_data); - if (domain) + if (domain) { + domain->revmap_data.nomap.max_irq = max_irq ? max_irq : ~0; irq_domain_add(domain); + } return domain; } @@ -262,22 +264,6 @@ void irq_set_default_host(struct irq_domain *domain) irq_default_domain = domain; } -/** - * irq_set_virq_count() - Set the maximum number of linux irqs - * @count: number of linux irqs, capped with NR_IRQS - * - * This is mainly for use by platforms like iSeries who want to program - * the virtual irq number in the controller to avoid the reverse mapping - */ -void irq_set_virq_count(unsigned int count) -{ - pr_debug("irq: Trying to set virq count to %d\n", count); - - BUG_ON(count < NUM_ISA_INTERRUPTS); - if (count < NR_IRQS) - irq_virq_count = count; -} - static int irq_setup_virq(struct irq_domain *domain, unsigned int virq, irq_hw_number_t hwirq) { @@ -320,13 +306,12 @@ unsigned int irq_create_direct_mapping(struct irq_domain *domain) pr_debug("irq: create_direct virq allocation failed\n"); return 0; } - if (virq >= irq_virq_count) { + if (virq >= domain->revmap_data.nomap.max_irq) { pr_err("ERROR: no free irqs available below %i maximum\n", - irq_virq_count); + domain->revmap_data.nomap.max_irq); irq_free_desc(virq); return 0; } - pr_debug("irq: create_direct obtained virq %d\n", virq); if (irq_setup_virq(domain, virq, virq)) { @@ -378,7 +363,7 @@ unsigned int irq_create_mapping(struct irq_domain *domain, return irq_domain_legacy_revmap(domain, hwirq); /* Allocate a virtual interrupt number */ - hint = hwirq % irq_virq_count; + hint = hwirq % nr_irqs; if (hint == 0) hint++; virq = irq_alloc_desc_from(hint, 0); @@ -516,7 +501,7 @@ unsigned int irq_find_mapping(struct irq_domain *domain, irq_hw_number_t hwirq) { unsigned int i; - unsigned int hint = hwirq % irq_virq_count; + unsigned int hint = hwirq % nr_irqs; /* Look for default domain if nececssary */ if (domain == NULL) @@ -537,7 +522,7 @@ unsigned int irq_find_mapping(struct irq_domain *domain, if (data && (data->domain == domain) && (data->hwirq == hwirq)) return i; i++; - if (i >= irq_virq_count) + if (i >= nr_irqs) i = 1; } while(i != hint); return 0; -- cgit v0.10.2 From 63634806519b49bb43f37e53a1e8366eb3e846a4 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 12 Apr 2012 08:47:05 +0200 Subject: block: mtip32xx: remove HOTPLUG_PCI_PCIE dependancy This removes the HOTPLUG_PCI_PCIE dependency on the driver and makes it depend on PCI. Cc: Sam Bradshaw Signed-off-by: Greg Kroah-Hartman Acked-by: Asai Thambi S P Signed-off-by: Jens Axboe diff --git a/drivers/block/mtip32xx/Kconfig b/drivers/block/mtip32xx/Kconfig index b5dd14e..0ba837f 100644 --- a/drivers/block/mtip32xx/Kconfig +++ b/drivers/block/mtip32xx/Kconfig @@ -4,6 +4,6 @@ config BLK_DEV_PCIESSD_MTIP32XX tristate "Block Device Driver for Micron PCIe SSDs" - depends on HOTPLUG_PCI_PCIE + depends on PCI help This enables the block driver for Micron PCIe SSDs. -- cgit v0.10.2 From 15a13bbdffb0d6288a5dd04aee9736267da1335f Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Thu, 12 Apr 2012 01:27:57 +0200 Subject: drm/i915: clear fencing tracking state when retiring requests This fixes a resume regression introduced in commit 7dd4906586274f3945f2aeaaa5a33b451c3b4bba Author: Chris Wilson Date: Wed Mar 21 10:48:18 2012 +0000 drm/i915: Mark untiled BLT commands as fenced on gen2/3 which fixed fencing tracking for untiled blt commands. A side effect of that patch was that now also untiled objects have a non-zero obj->last_fenced_seqno to track when a fence can be set up after a pipelined tiling change. Unfortunately this was only cleared by the fence setup and teardown code, resulting in tons of untiled but inactive objects with non-zero last_fenced_seqno. Now after resume we completely reset the seqno tracking, both on the driver side (by setting dev_priv->next_seqno = 1) and on the hw side (by allocating a new hws page, which contains the seqnos). Hilarity and indefinite waits ensued from the stale seqnos in obj->last_fenced_seqno from before the suspend. The fix is to properly clear the fencing tracking state like we already do for the normal gpu rendering while moving objects off the active list. Reported-and-tested-by: "Rafael J. Wysocki" Cc: Jiri Slaby Reviewed-by: Chris Wilson Signed-Off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 4c65c63..0e3c6ac 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1493,6 +1493,7 @@ i915_gem_object_move_off_active(struct drm_i915_gem_object *obj) { list_del_init(&obj->ring_list); obj->last_rendering_seqno = 0; + obj->last_fenced_seqno = 0; } static void @@ -1521,6 +1522,7 @@ i915_gem_object_move_to_inactive(struct drm_i915_gem_object *obj) BUG_ON(!list_empty(&obj->gpu_write_list)); BUG_ON(!obj->active); obj->ring = NULL; + obj->last_fenced_ring = NULL; i915_gem_object_move_off_active(obj); obj->fenced_gpu_access = false; -- cgit v0.10.2 From 5e7045b010bdb56abbfe5714e8debf03a024c016 Mon Sep 17 00:00:00 2001 From: Zhi Yong Wu Date: Mon, 9 Apr 2012 10:42:13 +0300 Subject: tools/virtio: fix up vhost/test module build commit ea5d404655ba3b356d0c06d6a3c4f24112124522 broke build for the vhost test module used by tools/virtio. Fix it up. Signed-off-by: Zhi Yong Wu Signed-off-by: Michael S. Tsirkin diff --git a/drivers/vhost/test.c b/drivers/vhost/test.c index fc9a1d7..3de00d9 100644 --- a/drivers/vhost/test.c +++ b/drivers/vhost/test.c @@ -155,7 +155,7 @@ static int vhost_test_release(struct inode *inode, struct file *f) vhost_test_stop(n, &private); vhost_test_flush(n); - vhost_dev_cleanup(&n->dev); + vhost_dev_cleanup(&n->dev, false); /* We do an extra flush before freeing memory, * since jobs can re-queue themselves. */ vhost_test_flush(n); -- cgit v0.10.2 From c0aa3e0916d7e531e69b02e426f7162dfb1c6c0f Mon Sep 17 00:00:00 2001 From: Ren Mingxin Date: Tue, 10 Apr 2012 15:28:05 +0800 Subject: virtio_blk: helper function to format disk names The current virtio block's naming algorithm just supports 18278 (26^3 + 26^2 + 26) disks. If there are more virtio blocks, there will be disks with the same name. Based on commit 3e1a7ff8a0a7b948f2684930166954f9e8e776fe, add a function "virtblk_name_format()" for virtio block to support mass of disks naming. Notes: - Our naming scheme is ugly. We are stuck with it for virtio but don't use it for any new driver: new drivers should name their devices PREFIX%d where the sequence number can be allocated by ida - sd_format_disk_name has exactly the same logic. Moving it to a central place was deferred over worries that this will make people keep using the legacy naming in new drivers. We kept code idential in case someone wants to deduplicate later. Signed-off-by: Ren Mingxin Acked-by: Asias He Signed-off-by: Michael S. Tsirkin diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index c4a60ba..303779c 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -374,6 +374,34 @@ static int init_vq(struct virtio_blk *vblk) return err; } +/* + * Legacy naming scheme used for virtio devices. We are stuck with it for + * virtio blk but don't ever use it for any new driver. + */ +static int virtblk_name_format(char *prefix, int index, char *buf, int buflen) +{ + const int base = 'z' - 'a' + 1; + char *begin = buf + strlen(prefix); + char *end = buf + buflen; + char *p; + int unit; + + p = end - 1; + *p = '\0'; + unit = base; + do { + if (p == begin) + return -EINVAL; + *--p = 'a' + (index % unit); + index = (index / unit) - 1; + } while (index >= 0); + + memmove(begin, p, end - p); + memcpy(buf, prefix, strlen(prefix)); + + return 0; +} + static int __devinit virtblk_probe(struct virtio_device *vdev) { struct virtio_blk *vblk; @@ -442,18 +470,7 @@ static int __devinit virtblk_probe(struct virtio_device *vdev) q->queuedata = vblk; - if (index < 26) { - sprintf(vblk->disk->disk_name, "vd%c", 'a' + index % 26); - } else if (index < (26 + 1) * 26) { - sprintf(vblk->disk->disk_name, "vd%c%c", - 'a' + index / 26 - 1, 'a' + index % 26); - } else { - const unsigned int m1 = (index / 26 - 1) / 26 - 1; - const unsigned int m2 = (index / 26 - 1) % 26; - const unsigned int m3 = index % 26; - sprintf(vblk->disk->disk_name, "vd%c%c%c", - 'a' + m1, 'a' + m2, 'a' + m3); - } + virtblk_name_format("vd", index, vblk->disk->disk_name, DISK_NAME_LEN); vblk->disk->major = major; vblk->disk->first_minor = index_to_minor(index); -- cgit v0.10.2 From 490aa60ee7e884febf4818234d5c97669665db9a Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Thu, 12 Apr 2012 16:42:54 +0900 Subject: drm/exynos: fixed exynos broken ioctl this patch removes the pointer of uint64_t *edid. it should be just a uint64_t. Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park diff --git a/include/drm/exynos_drm.h b/include/drm/exynos_drm.h index 1bb2d47..e478de4 100644 --- a/include/drm/exynos_drm.h +++ b/include/drm/exynos_drm.h @@ -85,7 +85,7 @@ struct drm_exynos_gem_mmap { struct drm_exynos_vidi_connection { unsigned int connection; unsigned int extensions; - uint64_t *edid; + uint64_t edid; }; struct drm_exynos_plane_set_zpos { -- cgit v0.10.2 From c628ee67fb15a0d8d48351aa2e487c5f14779785 Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Thu, 12 Apr 2012 12:57:08 +0200 Subject: fuse: use flexible array in fuse.h Use the ISO C standard compliant form instead of the gcc extension in the interface definition. Reported-by: Shachar Sharon Signed-off-by: Miklos Szeredi diff --git a/include/linux/fuse.h b/include/linux/fuse.h index 8ba2c94..8f2ab8f 100644 --- a/include/linux/fuse.h +++ b/include/linux/fuse.h @@ -593,7 +593,7 @@ struct fuse_dirent { __u64 off; __u32 namelen; __u32 type; - char name[0]; + char name[]; }; #define FUSE_NAME_OFFSET offsetof(struct fuse_dirent, name) -- cgit v0.10.2 From 662c738d9946de521dcece2b146dced335242389 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Heiko=20St=C3=BCbner?= Date: Wed, 29 Feb 2012 23:03:11 +0100 Subject: usb: otg: gpio_vbus: Add otg transceiver events and notifiers Commit 9ad63986c606 (pda_power: Add support for using otg transceiver events) converted the pda-power driver to use otg events to determine the status of the power supply. As gpio-vbus didn't use otg events until now, this change breaks setups of pda-power with a gpio-vbus transceiver. This patch adds the necessary otg events and notifiers to gpio-vbus. Signed-off-by: Heiko Stuebner Reviewed-by: Dima Zavin Signed-off-by: Felipe Balbi diff --git a/drivers/usb/otg/gpio_vbus.c b/drivers/usb/otg/gpio_vbus.c index 3ece43a..a0a2178 100644 --- a/drivers/usb/otg/gpio_vbus.c +++ b/drivers/usb/otg/gpio_vbus.c @@ -96,7 +96,7 @@ static void gpio_vbus_work(struct work_struct *work) struct gpio_vbus_data *gpio_vbus = container_of(work, struct gpio_vbus_data, work); struct gpio_vbus_mach_info *pdata = gpio_vbus->dev->platform_data; - int gpio; + int gpio, status; if (!gpio_vbus->phy.otg->gadget) return; @@ -108,7 +108,9 @@ static void gpio_vbus_work(struct work_struct *work) */ gpio = pdata->gpio_pullup; if (is_vbus_powered(pdata)) { + status = USB_EVENT_VBUS; gpio_vbus->phy.state = OTG_STATE_B_PERIPHERAL; + gpio_vbus->phy.last_event = status; usb_gadget_vbus_connect(gpio_vbus->phy.otg->gadget); /* drawing a "unit load" is *always* OK, except for OTG */ @@ -117,6 +119,9 @@ static void gpio_vbus_work(struct work_struct *work) /* optionally enable D+ pullup */ if (gpio_is_valid(gpio)) gpio_set_value(gpio, !pdata->gpio_pullup_inverted); + + atomic_notifier_call_chain(&gpio_vbus->phy.notifier, + status, gpio_vbus->phy.otg->gadget); } else { /* optionally disable D+ pullup */ if (gpio_is_valid(gpio)) @@ -125,7 +130,12 @@ static void gpio_vbus_work(struct work_struct *work) set_vbus_draw(gpio_vbus, 0); usb_gadget_vbus_disconnect(gpio_vbus->phy.otg->gadget); + status = USB_EVENT_NONE; gpio_vbus->phy.state = OTG_STATE_B_IDLE; + gpio_vbus->phy.last_event = status; + + atomic_notifier_call_chain(&gpio_vbus->phy.notifier, + status, gpio_vbus->phy.otg->gadget); } } @@ -287,6 +297,9 @@ static int __init gpio_vbus_probe(struct platform_device *pdev) irq, err); goto err_irq; } + + ATOMIC_INIT_NOTIFIER_HEAD(&gpio_vbus->phy.notifier); + INIT_WORK(&gpio_vbus->work, gpio_vbus_work); gpio_vbus->vbus_draw = regulator_get(&pdev->dev, "vbus_draw"); -- cgit v0.10.2 From c85dcdac5852295cf6822f5c4331a6ddab72581f Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Wed, 11 Apr 2012 16:09:10 -0400 Subject: USB: gadget: storage gadgets send wrong error code for unknown commands This patch (as1539) fixes a minor bug in the mass-storage gadget drivers. When an unknown command is received, the error code sent back is "Invalid Field in CDB" rather than "Invalid Command". This is because the bitmask of CDB bytes allowed to be nonzero is incorrect. When handling an unknown command, we don't care which command bytes are nonzero. All the bits in the mask should be set, not just eight of them. Signed-off-by: Alan Stern CC: CC: Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c index a371e96..cb8c162 100644 --- a/drivers/usb/gadget/f_mass_storage.c +++ b/drivers/usb/gadget/f_mass_storage.c @@ -2189,7 +2189,7 @@ unknown_cmnd: common->data_size_from_cmnd = 0; sprintf(unknown, "Unknown x%02x", common->cmnd[0]); reply = check_command(common, common->cmnd_size, - DATA_DIR_UNKNOWN, 0xff, 0, unknown); + DATA_DIR_UNKNOWN, ~0, 0, unknown); if (reply == 0) { common->curlun->sense_data = SS_INVALID_COMMAND; reply = -EINVAL; diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c index 4fac569..a896d73 100644 --- a/drivers/usb/gadget/file_storage.c +++ b/drivers/usb/gadget/file_storage.c @@ -2579,7 +2579,7 @@ static int do_scsi_command(struct fsg_dev *fsg) fsg->data_size_from_cmnd = 0; sprintf(unknown, "Unknown x%02x", fsg->cmnd[0]); if ((reply = check_command(fsg, fsg->cmnd_size, - DATA_DIR_UNKNOWN, 0xff, 0, unknown)) == 0) { + DATA_DIR_UNKNOWN, ~0, 0, unknown)) == 0) { fsg->curlun->sense_data = SS_INVALID_COMMAND; reply = -EINVAL; } -- cgit v0.10.2 From 6f3603367b8f7c34598fdfc1058622e0e1951e98 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Thu, 12 Apr 2012 07:51:08 -0700 Subject: IB/srpt: Set srq_type to IB_SRQT_BASIC Since commit 96104eda0169 ("RDMA/core: Add SRQ type field"), kernel users of SRQs need to specify srq_type = IB_SRQT_BASIC in struct ib_srq_init_attr, or else most low-level drivers will fail in when srpt_add_one() calls ib_create_srq() and gets -ENOSYS. (mlx4_ib works OK nearly all of the time, because it just needs srq_type != IB_SRQT_XRC. And apparently nearly everyone using ib_srpt is using mlx4 hardware) Reported-by: Alexey Shvetsov Cc: Signed-off-by: Roland Dreier diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c index 69e2ad0..daf21b8 100644 --- a/drivers/infiniband/ulp/srpt/ib_srpt.c +++ b/drivers/infiniband/ulp/srpt/ib_srpt.c @@ -3232,6 +3232,7 @@ static void srpt_add_one(struct ib_device *device) srq_attr.attr.max_wr = sdev->srq_size; srq_attr.attr.max_sge = 1; srq_attr.attr.srq_limit = 0; + srq_attr.srq_type = IB_SRQT_BASIC; sdev->srq = ib_create_srq(sdev->pd, &srq_attr); if (IS_ERR(sdev->srq)) -- cgit v0.10.2 From 6782206b5dfece4c51f587b3ca1540a4027f87dd Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Thu, 12 Apr 2012 14:21:01 +0200 Subject: perf session: Skip event correctly for unknown id/machine In case the perf_session__process_event function fails, we estimate the next event offset. This is not necessary for sample event failing on unknown ID or machine. In such case we know proper size of the event, so we dont need to guess. Also failure statistics are updated correctly so we don't miss any information. Forcing perf_session__process_event to return 0 in case of unknown ID or machine. Signed-off-by: Jiri Olsa Cc: Corey Ashford Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1334233262-5679-3-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 00923cd..1efd3be 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -876,11 +876,11 @@ static int perf_session_deliver_event(struct perf_session *session, dump_sample(session, event, sample); if (evsel == NULL) { ++session->hists.stats.nr_unknown_id; - return -1; + return 0; } if (machine == NULL) { ++session->hists.stats.nr_unprocessable_samples; - return -1; + return 0; } return tool->sample(tool, event, sample, evsel, machine); case PERF_RECORD_MMAP: -- cgit v0.10.2 From 9de29225bdd25958c1fa82521ff02726f1cab953 Mon Sep 17 00:00:00 2001 From: Stephen Lewis Date: Mon, 2 Apr 2012 13:38:49 -0700 Subject: USB: update usbtmc api documentation Correct path names in API documentation for usbtmc Signed-off-by: Stephen Lewis Signed-off-by: Greg Kroah-Hartman diff --git a/Documentation/ABI/stable/sysfs-driver-usb-usbtmc b/Documentation/ABI/stable/sysfs-driver-usb-usbtmc index 2a7f9a0..e960cd0 100644 --- a/Documentation/ABI/stable/sysfs-driver-usb-usbtmc +++ b/Documentation/ABI/stable/sysfs-driver-usb-usbtmc @@ -1,5 +1,5 @@ -What: /sys/bus/usb/drivers/usbtmc/devices/*/interface_capabilities -What: /sys/bus/usb/drivers/usbtmc/devices/*/device_capabilities +What: /sys/bus/usb/drivers/usbtmc/*/interface_capabilities +What: /sys/bus/usb/drivers/usbtmc/*/device_capabilities Date: August 2008 Contact: Greg Kroah-Hartman Description: @@ -12,8 +12,8 @@ Description: The files are read only. -What: /sys/bus/usb/drivers/usbtmc/devices/*/usb488_interface_capabilities -What: /sys/bus/usb/drivers/usbtmc/devices/*/usb488_device_capabilities +What: /sys/bus/usb/drivers/usbtmc/*/usb488_interface_capabilities +What: /sys/bus/usb/drivers/usbtmc/*/usb488_device_capabilities Date: August 2008 Contact: Greg Kroah-Hartman Description: @@ -27,7 +27,7 @@ Description: The files are read only. -What: /sys/bus/usb/drivers/usbtmc/devices/*/TermChar +What: /sys/bus/usb/drivers/usbtmc/*/TermChar Date: August 2008 Contact: Greg Kroah-Hartman Description: @@ -40,7 +40,7 @@ Description: sent to the device or not. -What: /sys/bus/usb/drivers/usbtmc/devices/*/TermCharEnabled +What: /sys/bus/usb/drivers/usbtmc/*/TermCharEnabled Date: August 2008 Contact: Greg Kroah-Hartman Description: @@ -51,7 +51,7 @@ Description: published by the USB-IF. -What: /sys/bus/usb/drivers/usbtmc/devices/*/auto_abort +What: /sys/bus/usb/drivers/usbtmc/*/auto_abort Date: August 2008 Contact: Greg Kroah-Hartman Description: -- cgit v0.10.2 From 8e62c2de6e23e5c1fee04f59de51b54cc2868ca5 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Thu, 12 Apr 2012 13:46:48 -0400 Subject: Revert "Btrfs: increase the global block reserve estimates" This reverts commit 5500cdbe14d7435e04f66ff3cfb8ecd8b8e44ebf. We've had a number of complaints of early enospc that bisect down to this patch. We'll hae to fix the reservations differently. CC: stable@kernel.org Signed-off-by: Chris Mason diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index a844204..ace5e8c 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -4205,7 +4205,7 @@ static u64 calc_global_metadata_size(struct btrfs_fs_info *fs_info) num_bytes += div64_u64(data_used + meta_used, 50); if (num_bytes * 3 > meta_used) - num_bytes = div64_u64(meta_used, 3) * 2; + num_bytes = div64_u64(meta_used, 3); return ALIGN(num_bytes, fs_info->extent_root->leafsize << 10); } -- cgit v0.10.2 From fe97da1f7001ca0f572358462606eb3d1bde3f23 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 12 Apr 2012 08:00:19 +0200 Subject: ALSA: hda/realtek - Add a fixup entry for Acer Aspire 8940G It's compatible with 8930G. Using the same fixup gives the proper 5.1 sound back. Reported-and-tested-by: Dany Martineau Cc: [v3.3+] Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 4eec215..d25a6f9 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -5363,6 +5363,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = { ALC882_FIXUP_ACER_ASPIRE_4930G), SND_PCI_QUIRK(0x1025, 0x0155, "Packard-Bell M5120", ALC882_FIXUP_PB_M5210), SND_PCI_QUIRK(0x1025, 0x0259, "Acer Aspire 5935", ALC889_FIXUP_DAC_ROUTE), + SND_PCI_QUIRK(0x1025, 0x026b, "Acer Aspire 8940G", ALC882_FIXUP_ACER_ASPIRE_8930G), SND_PCI_QUIRK(0x1025, 0x0296, "Acer Aspire 7736z", ALC882_FIXUP_ACER_ASPIRE_7736), SND_PCI_QUIRK(0x1043, 0x13c2, "Asus A7M", ALC882_FIXUP_EAPD), SND_PCI_QUIRK(0x1043, 0x1873, "ASUS W90V", ALC882_FIXUP_ASUS_W90V), -- cgit v0.10.2 From 29ebe40284c75a5888c601872059fca7e258528d Mon Sep 17 00:00:00 2001 From: Josh Boyer Date: Thu, 12 Apr 2012 13:55:36 -0400 Subject: ALSA: hda/realtek - Add quirk for Mac Pro 5,1 machines A user reported that setting model=imac24 used to allow sound to work on their Mac Pro 5,1 machine. Commit 5671087ffa "Move ALC885 macpro and imac24 models to auto-parser" removed this model option. All Mac machines are now explicitly handled with a quirk and the auto-parser. This adds a quirk for the device found on the Mac Pro 5,1 machines. This (partially) fixes https://bugzilla.redhat.com/show_bug.cgi?id=808559 [sorted the new entry in the ID number order by tiwai] Reported-by: Gabriel Somlo Signed-off-by: Josh Boyer Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index d25a6f9..8f4a484 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -5389,6 +5389,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = { SND_PCI_QUIRK(0x106b, 0x3f00, "Macbook 5,1", ALC889_FIXUP_IMAC91_VREF), SND_PCI_QUIRK(0x106b, 0x4000, "MacbookPro 5,1", ALC889_FIXUP_IMAC91_VREF), SND_PCI_QUIRK(0x106b, 0x4100, "Macmini 3,1", ALC889_FIXUP_IMAC91_VREF), + SND_PCI_QUIRK(0x106b, 0x4200, "Mac Pro 5,1", ALC885_FIXUP_MACPRO_GPIO), SND_PCI_QUIRK(0x106b, 0x4600, "MacbookPro 5,2", ALC889_FIXUP_IMAC91_VREF), SND_PCI_QUIRK(0x106b, 0x4900, "iMac 9,1 Aluminum", ALC889_FIXUP_IMAC91_VREF), SND_PCI_QUIRK(0x106b, 0x4a00, "Macbook 5,2", ALC889_FIXUP_IMAC91_VREF), -- cgit v0.10.2 From 7e1f7c8a6e517900cd84da1b8ae020f08f286c3b Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 12 Apr 2012 17:29:36 +0100 Subject: ASoC: dapm: Ensure power gets managed for line widgets Line widgets had not been included in either the power up or power down sequences so if a widget had an event associated with it that event would never be run. Fix this minimally by adding them to the sequences, we should probably be doing away with the specific widget types as they all have the same priority anyway. Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 6241490..dc7dbfe 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -67,6 +67,7 @@ static int dapm_up_seq[] = { [snd_soc_dapm_out_drv] = 10, [snd_soc_dapm_hp] = 10, [snd_soc_dapm_spk] = 10, + [snd_soc_dapm_line] = 10, [snd_soc_dapm_post] = 11, }; @@ -75,6 +76,7 @@ static int dapm_down_seq[] = { [snd_soc_dapm_adc] = 1, [snd_soc_dapm_hp] = 2, [snd_soc_dapm_spk] = 2, + [snd_soc_dapm_line] = 2, [snd_soc_dapm_out_drv] = 2, [snd_soc_dapm_pga] = 4, [snd_soc_dapm_mixer_named_ctl] = 5, -- cgit v0.10.2 From f755397211745e26a4cc693a195982de6c454edd Mon Sep 17 00:00:00 2001 From: Stephane Eranian Date: Tue, 10 Apr 2012 12:35:13 +0200 Subject: perf tools: fix NO_GTK2 Makefile config error In case the user specified NO_GTK2 on the make cmdline, compilation would fail with undefined symbol because the Makefile would not set the correct cpp variable: NO_GTK2 vs. NO_GTK2_SUPPORT. This patch renames the variable to the correct name. Signed-off-by: Stephane Eranian Cc: David Ahern Cc: Ingo Molnar Cc: Pekka Enberg Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20120410103513.GA9229@quad Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 820371f..a20d0c5 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -527,7 +527,7 @@ else endif ifdef NO_GTK2 - BASIC_CFLAGS += -DNO_GTK2 + BASIC_CFLAGS += -DNO_GTK2_SUPPORT else FLAGS_GTK2=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS) $(shell pkg-config --libs --cflags gtk+-2.0) ifneq ($(call try-cc,$(SOURCE_GTK2),$(FLAGS_GTK2)),y) -- cgit v0.10.2 From d95603b262edb53d6016a8df0c150371d4d61e67 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Thu, 12 Apr 2012 15:55:15 -0400 Subject: Btrfs: fix uninit variable in repair_eb_io_failure We'd have to be passing bogus extent buffers for this uninit variable to actually be used, but set it to zero just in case. Signed-off-by: Chris Mason diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 0c3ec00..59ec105 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -1937,7 +1937,7 @@ int repair_eb_io_failure(struct btrfs_root *root, struct extent_buffer *eb, struct btrfs_mapping_tree *map_tree = &root->fs_info->mapping_tree; u64 start = eb->start; unsigned long i, num_pages = num_extent_pages(eb->start, eb->len); - int ret; + int ret = 0; for (i = 0; i < num_pages; i++) { struct page *p = extent_buffer_page(eb, i); -- cgit v0.10.2 From 96d5d96aedc29c75bb16433f6ecf8664ec3c1b46 Mon Sep 17 00:00:00 2001 From: Seth Heasley Date: Tue, 21 Feb 2012 10:45:26 -0800 Subject: ata_piix: IDE-mode SATA patch for Intel DH89xxCC DeviceIDs This patch adds the IDE-mode SATA DeviceIDs for the Intel DH89xxCC PCH. Signed-off-by: Seth Heasley Signed-off-by: Jeff Garzik diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index 68013f9..7857e8f 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -329,6 +329,8 @@ static const struct pci_device_id piix_pci_tbl[] = { { 0x8086, 0x8c08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata }, /* SATA Controller IDE (Lynx Point) */ { 0x8086, 0x8c09, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata }, + /* SATA Controller IDE (DH89xxCC) */ + { 0x8086, 0x2326, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata }, { } /* terminate list */ }; -- cgit v0.10.2 From 99b80e97710ae2e53c951acfdd956e9f38e36646 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sat, 10 Mar 2012 12:00:05 +0300 Subject: sata_mv: silence an uninitialized variable warning Gcc version 4.6.2-12 complains that if we can't find the "nr-ports" property in of_property_read_u32_array() then "n_ports" is used uninitialized. Let's set it to zero in that case. Signed-off-by: Dan Carpenter Signed-off-by: Jeff Garzik diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 38950ea..7336d4a 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -4025,7 +4025,8 @@ static int mv_platform_probe(struct platform_device *pdev) struct ata_host *host; struct mv_host_priv *hpriv; struct resource *res; - int n_ports, rc; + int n_ports = 0; + int rc; ata_print_version_once(&pdev->dev, DRV_VERSION); -- cgit v0.10.2 From 85d6725b7c0d7e3fa4261fdd4c020be4224fc9f1 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Sat, 10 Mar 2012 23:28:46 -0800 Subject: libata: make ata_print_id atomic This variable is incremented from multiple contexts (module_init via libata-lldds and the libsas discovery thread). Make it atomic to head off any chance of libsas and libata creating duplicate ids. Acked-by: Jacek Danecki Signed-off-by: Dan Williams Signed-off-by: Jeff Garzik diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index e0bda9f..28db50b 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -95,7 +95,7 @@ static unsigned int ata_dev_set_xfermode(struct ata_device *dev); static void ata_dev_xfermask(struct ata_device *dev); static unsigned long ata_dev_blacklisted(const struct ata_device *dev); -unsigned int ata_print_id = 1; +atomic_t ata_print_id = ATOMIC_INIT(1); struct ata_force_param { const char *name; @@ -6029,7 +6029,7 @@ int ata_host_register(struct ata_host *host, struct scsi_host_template *sht) /* give ports names and add SCSI hosts */ for (i = 0; i < host->n_ports; i++) - host->ports[i]->print_id = ata_print_id++; + host->ports[i]->print_id = atomic_inc_return(&ata_print_id); /* Create associated sysfs transport objects */ diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 1ee00c8..93dabdc 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -3843,7 +3843,7 @@ int ata_sas_async_port_init(struct ata_port *ap) int rc = ap->ops->port_start(ap); if (!rc) { - ap->print_id = ata_print_id++; + ap->print_id = atomic_inc_return(&ata_print_id); __ata_port_probe(ap); } @@ -3867,7 +3867,7 @@ int ata_sas_port_init(struct ata_port *ap) int rc = ap->ops->port_start(ap); if (!rc) { - ap->print_id = ata_print_id++; + ap->print_id = atomic_inc_return(&ata_print_id); rc = ata_port_probe(ap); } diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h index 2e26fca..9d0fd0b 100644 --- a/drivers/ata/libata.h +++ b/drivers/ata/libata.h @@ -53,7 +53,7 @@ enum { ATA_DNXFER_QUIET = (1 << 31), }; -extern unsigned int ata_print_id; +extern atomic_t ata_print_id; extern int atapi_passthru16; extern int libata_fua; extern int libata_noacpi; -- cgit v0.10.2 From b89203f74bdfcb15407d54d3f257b16a2ea19e62 Mon Sep 17 00:00:00 2001 From: Liu Bo Date: Thu, 12 Apr 2012 16:03:56 -0400 Subject: Btrfs: fix eof while discarding extents We miscalculate the length of extents we're discarding, and it leads to an eof of device. Reported-by: Daniel Blueman Signed-off-by: Liu Bo Signed-off-by: Chris Mason diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index a872b48..759d024 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -3833,6 +3833,7 @@ static int __btrfs_map_block(struct btrfs_mapping_tree *map_tree, int rw, int sub_stripes = 0; u64 stripes_per_dev = 0; u32 remaining_stripes = 0; + u32 last_stripe = 0; if (map->type & (BTRFS_BLOCK_GROUP_RAID0 | BTRFS_BLOCK_GROUP_RAID10)) { @@ -3846,6 +3847,8 @@ static int __btrfs_map_block(struct btrfs_mapping_tree *map_tree, int rw, stripe_nr_orig, factor, &remaining_stripes); + div_u64_rem(stripe_nr_end - 1, factor, &last_stripe); + last_stripe *= sub_stripes; } for (i = 0; i < num_stripes; i++) { @@ -3858,16 +3861,29 @@ static int __btrfs_map_block(struct btrfs_mapping_tree *map_tree, int rw, BTRFS_BLOCK_GROUP_RAID10)) { bbio->stripes[i].length = stripes_per_dev * map->stripe_len; + if (i / sub_stripes < remaining_stripes) bbio->stripes[i].length += map->stripe_len; + + /* + * Special for the first stripe and + * the last stripe: + * + * |-------|...|-------| + * |----------| + * off end_off + */ if (i < sub_stripes) bbio->stripes[i].length -= stripe_offset; - if ((i / sub_stripes + 1) % - sub_stripes == remaining_stripes) + + if (stripe_index >= last_stripe && + stripe_index <= (last_stripe + + sub_stripes - 1)) bbio->stripes[i].length -= stripe_end_offset; + if (i == sub_stripes - 1) stripe_offset = 0; } else -- cgit v0.10.2 From c6664b42c4e567792abdb17c958fb01c5bcfcb3a Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Thu, 12 Apr 2012 16:03:56 -0400 Subject: Btrfs: remove lock assert from get_restripe_target() This fixes a regression introduced by fc67c450. spin_is_locked() always returns 0 on UP kernels, which caused assert in get_restripe_target() to be fired on every call from btrfs_reduce_alloc_profile() on UP systems. Remove it completely for now, it's not clear if it's going to be needed in future. Reported-by: Bobby Powers Reported-by: Mitch Harder Tested-by: Mitch Harder Signed-off-by: Ilya Dryomov Signed-off-by: Chris Mason diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index ace5e8c..a2134d8 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3152,15 +3152,14 @@ static void set_avail_alloc_bits(struct btrfs_fs_info *fs_info, u64 flags) /* * returns target flags in extended format or 0 if restripe for this * chunk_type is not in progress + * + * should be called with either volume_mutex or balance_lock held */ static u64 get_restripe_target(struct btrfs_fs_info *fs_info, u64 flags) { struct btrfs_balance_control *bctl = fs_info->balance_ctl; u64 target = 0; - BUG_ON(!mutex_is_locked(&fs_info->volume_mutex) && - !spin_is_locked(&fs_info->balance_lock)); - if (!bctl) return 0; -- cgit v0.10.2 From e627ee7bcd42b4e3a03ca01a8e46dcb4033c5ae0 Mon Sep 17 00:00:00 2001 From: Tsutomu Itoh Date: Thu, 12 Apr 2012 16:03:56 -0400 Subject: Btrfs: check return value of bio_alloc() properly bio_alloc() has the possibility of returning NULL. So, it is necessary to check the return value. Signed-off-by: Tsutomu Itoh Signed-off-by: Chris Mason diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index d11afa67..646f5e6 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -405,6 +405,7 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start, bio_put(bio); bio = compressed_bio_alloc(bdev, first_byte, GFP_NOFS); + BUG_ON(!bio); bio->bi_private = cb; bio->bi_end_io = end_compressed_bio_write; bio_add_page(bio, page, PAGE_CACHE_SIZE, 0); @@ -687,6 +688,7 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio, comp_bio = compressed_bio_alloc(bdev, cur_disk_byte, GFP_NOFS); + BUG_ON(!comp_bio); comp_bio->bi_private = cb; comp_bio->bi_end_io = end_compressed_bio_read; diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 59ec105..4789770 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -2180,6 +2180,10 @@ static int bio_readpage_error(struct bio *failed_bio, struct page *page, } bio = bio_alloc(GFP_NOFS, 1); + if (!bio) { + free_io_failure(inode, failrec, 0); + return -EIO; + } bio->bi_private = state; bio->bi_end_io = failed_bio->bi_end_io; bio->bi_sector = failrec->logical >> 9; diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c index c9a2c1a..60f0e28 100644 --- a/fs/btrfs/scrub.c +++ b/fs/btrfs/scrub.c @@ -1044,6 +1044,8 @@ static int scrub_recheck_block(struct btrfs_fs_info *fs_info, BUG_ON(!page->page); bio = bio_alloc(GFP_NOFS, 1); + if (!bio) + return -EIO; bio->bi_bdev = page->bdev; bio->bi_sector = page->physical >> 9; bio->bi_end_io = scrub_complete_bio_end_io; @@ -1172,6 +1174,8 @@ static int scrub_repair_page_from_good_copy(struct scrub_block *sblock_bad, DECLARE_COMPLETION_ONSTACK(complete); bio = bio_alloc(GFP_NOFS, 1); + if (!bio) + return -EIO; bio->bi_bdev = page_bad->bdev; bio->bi_sector = page_bad->physical >> 9; bio->bi_end_io = scrub_complete_bio_end_io; -- cgit v0.10.2 From 4edc2ca388d62abffe38149f6ac00e749ea721c5 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Thu, 12 Apr 2012 16:03:56 -0400 Subject: Btrfs: fix use-after-free in __btrfs_end_transaction 49b25e0540904be0bf558b84475c69d72e4de66e introduced a use-after-free bug that caused spurious -EIO's to be returned. Do the check before we free the transaction. Cc: David Sterba Cc: Jeff Mahoney Signed-off-by: Dave Jones Signed-off-by: Chris Mason diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index 8da29e8..11b77a5 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -480,6 +480,7 @@ static int __btrfs_end_transaction(struct btrfs_trans_handle *trans, struct btrfs_transaction *cur_trans = trans->transaction; struct btrfs_fs_info *info = root->fs_info; int count = 0; + int err = 0; if (--trans->use_count) { trans->block_rsv = trans->orig_rsv; @@ -532,18 +533,18 @@ static int __btrfs_end_transaction(struct btrfs_trans_handle *trans, if (current->journal_info == trans) current->journal_info = NULL; - memset(trans, 0, sizeof(*trans)); - kmem_cache_free(btrfs_trans_handle_cachep, trans); if (throttle) btrfs_run_delayed_iputs(root); if (trans->aborted || root->fs_info->fs_state & BTRFS_SUPER_FLAG_ERROR) { - return -EIO; + err = -EIO; } - return 0; + memset(trans, 0, sizeof(*trans)); + kmem_cache_free(btrfs_trans_handle_cachep, trans); + return err; } int btrfs_end_transaction(struct btrfs_trans_handle *trans, -- cgit v0.10.2 From 6252efcc3626bdcde1c1c2d8a83be0bc66b8cc2c Mon Sep 17 00:00:00 2001 From: Ying Han Date: Thu, 12 Apr 2012 12:49:10 -0700 Subject: memcg: fix up documentation on global LRU In v3.3-rc1, the global LRU was removed in commit 925b7673cce3 ("mm: make per-memcg LRU lists exclusive"). The patch fixes up the memcg docs. I left the swap session to someone who has better understanding of 'memory+swap'. Signed-off-by: Ying Han Acked-by: Michal Hocko Acked-by: KAMEZAWA Hiroyuki Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt index 4c95c00..9b1067a 100644 --- a/Documentation/cgroups/memory.txt +++ b/Documentation/cgroups/memory.txt @@ -34,8 +34,7 @@ Current Status: linux-2.6.34-mmotm(development version of 2010/April) Features: - accounting anonymous pages, file caches, swap caches usage and limiting them. - - private LRU and reclaim routine. (system's global LRU and private LRU - work independently from each other) + - pages are linked to per-memcg LRU exclusively, and there is no global LRU. - optionally, memory+swap usage can be accounted and limited. - hierarchical accounting - soft limit @@ -154,7 +153,7 @@ updated. page_cgroup has its own LRU on cgroup. 2.2.1 Accounting details All mapped anon pages (RSS) and cache pages (Page Cache) are accounted. -Some pages which are never reclaimable and will not be on the global LRU +Some pages which are never reclaimable and will not be on the LRU are not accounted. We just account pages under usual VM management. RSS pages are accounted at page_fault unless they've already been accounted -- cgit v0.10.2 From d833049bd20570cbbadeb5228c579f9f3aaa4e03 Mon Sep 17 00:00:00 2001 From: "Kirill A. Shutemov" Date: Thu, 12 Apr 2012 12:49:11 -0700 Subject: memcg: fix broken boolen expression action != CPU_DEAD || action != CPU_DEAD_FROZEN is always true. Signed-off-by: Kirill A. Shutemov Acked-by: KAMEZAWA Hiroyuki Acked-by: Michal Hocko Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 7d698df..ea1e879 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -2165,7 +2165,7 @@ static int __cpuinit memcg_cpu_hotplug_callback(struct notifier_block *nb, if (action == CPU_ONLINE) return NOTIFY_OK; - if ((action != CPU_DEAD) || action != CPU_DEAD_FROZEN) + if (action != CPU_DEAD && action != CPU_DEAD_FROZEN) return NOTIFY_OK; for_each_mem_cgroup(iter) -- cgit v0.10.2 From 44e4360fa3384850d65dd36fb4e6e5f2f112709b Mon Sep 17 00:00:00 2001 From: Mathieu Desnoyers Date: Thu, 12 Apr 2012 12:49:12 -0700 Subject: drivers/char/random.c: fix boot id uniqueness race /proc/sys/kernel/random/boot_id can be read concurrently by userspace processes. If two (or more) user-space processes concurrently read boot_id when sysctl_bootid is not yet assigned, a race can occur making boot_id differ between the reads. Because the whole point of the boot id is to be unique across a kernel execution, fix this by protecting this operation with a spinlock. Given that this operation is not frequently used, hitting the spinlock on each call should not be an issue. Signed-off-by: Mathieu Desnoyers Cc: "Theodore Ts'o" Cc: Matt Mackall Signed-off-by: Eric Dumazet Cc: Greg Kroah-Hartman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/char/random.c b/drivers/char/random.c index 54ca8b2..4ec04a7 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -1260,10 +1260,15 @@ static int proc_do_uuid(ctl_table *table, int write, uuid = table->data; if (!uuid) { uuid = tmp_uuid; - uuid[8] = 0; - } - if (uuid[8] == 0) generate_random_uuid(uuid); + } else { + static DEFINE_SPINLOCK(bootid_spinlock); + + spin_lock(&bootid_spinlock); + if (!uuid[8]) + generate_random_uuid(uuid); + spin_unlock(&bootid_spinlock); + } sprintf(buf, "%pU", uuid); -- cgit v0.10.2 From bb58da08f01ee12561867fcd4385b82679ae7f6c Mon Sep 17 00:00:00 2001 From: Andreas Dumberger Date: Thu, 12 Apr 2012 12:49:12 -0700 Subject: drivers/rtc/rtc-r9701.c: reset registers if invalid values are detected hwclock refuses to set date/time if RTC registers contain invalid values. Check the date/time register values at probe time and initialize them to make hwclock happy. Signed-off-by: Andreas Dumberger Signed-off-by: Anatolij Gustschin Cc: Alessandro Zummo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/rtc/rtc-r9701.c b/drivers/rtc/rtc-r9701.c index 7f8e6c2..33b6ba0 100644 --- a/drivers/rtc/rtc-r9701.c +++ b/drivers/rtc/rtc-r9701.c @@ -122,6 +122,7 @@ static const struct rtc_class_ops r9701_rtc_ops = { static int __devinit r9701_probe(struct spi_device *spi) { struct rtc_device *rtc; + struct rtc_time dt; unsigned char tmp; int res; @@ -132,6 +133,27 @@ static int __devinit r9701_probe(struct spi_device *spi) return -ENODEV; } + /* + * The device seems to be present. Now check if the registers + * contain invalid values. If so, try to write a default date: + * 2000/1/1 00:00:00 + */ + r9701_get_datetime(&spi->dev, &dt); + if (rtc_valid_tm(&dt)) { + dev_info(&spi->dev, "trying to repair invalid date/time\n"); + dt.tm_sec = 0; + dt.tm_min = 0; + dt.tm_hour = 0; + dt.tm_mday = 1; + dt.tm_mon = 0; + dt.tm_year = 100; + + if (r9701_set_datetime(&spi->dev, &dt)) { + dev_err(&spi->dev, "cannot repair RTC register\n"); + return -ENODEV; + } + } + rtc = rtc_device_register("r9701", &spi->dev, &r9701_rtc_ops, THIS_MODULE); if (IS_ERR(rtc)) -- cgit v0.10.2 From 32050017cf3bf2b983571a90351328b4f66e463d Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Thu, 12 Apr 2012 12:49:12 -0700 Subject: drivers/rtc/rtc-efi.c: fix section mismatch warning efi_rtc_init() uses platform_driver_probe(), so there's no need to also set efi_rtc_driver's probe member (as it won't be used anyway). This fixes a modpost section mismatch warning (as efi_rtc_probe() validly is __init). Signed-off-by: Jan Beulich Cc: Matthew Garrett Cc: Alessandro Zummo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/rtc/rtc-efi.c b/drivers/rtc/rtc-efi.c index 5502923..c9f890b 100644 --- a/drivers/rtc/rtc-efi.c +++ b/drivers/rtc/rtc-efi.c @@ -213,7 +213,6 @@ static struct platform_driver efi_rtc_driver = { .name = "rtc-efi", .owner = THIS_MODULE, }, - .probe = efi_rtc_probe, .remove = __exit_p(efi_rtc_remove), }; -- cgit v0.10.2 From 569530fb1b40ab2d2ca147ee79898ac807ebdf90 Mon Sep 17 00:00:00 2001 From: Glauber Costa Date: Thu, 12 Apr 2012 12:49:13 -0700 Subject: memcg: do not open code accesses to res_counter members We should use the accessor res_counter_read_u64 for that. Although a purely cosmetic change is sometimes better delayed, to avoid conflicting with other people's work, we are starting to have people touching this code as well, and reproducing the open code behavior because that's the standard =) Time to fix it, then. Signed-off-by: Glauber Costa Cc: Johannes Weiner Acked-by: Michal Hocko Cc: KAMEZAWA Hiroyuki Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/memcontrol.c b/mm/memcontrol.c index ea1e879..a7165a6 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -3763,7 +3763,7 @@ move_account: goto try_to_free; cond_resched(); /* "ret" should also be checked to ensure all lists are empty. */ - } while (memcg->res.usage > 0 || ret); + } while (res_counter_read_u64(&memcg->res, RES_USAGE) > 0 || ret); out: css_put(&memcg->css); return ret; @@ -3778,7 +3778,7 @@ try_to_free: lru_add_drain_all(); /* try to free all pages in this cgroup */ shrink = 1; - while (nr_retries && memcg->res.usage > 0) { + while (nr_retries && res_counter_read_u64(&memcg->res, RES_USAGE) > 0) { int progress; if (signal_pending(current)) { -- cgit v0.10.2 From 3971dae51d7cccf4c8197786b050b3a65ace01f0 Mon Sep 17 00:00:00 2001 From: Khalid Aziz Date: Thu, 12 Apr 2012 12:49:13 -0700 Subject: MAINTAINERS: add PCDP console maintainer Add missing maintainer info for PCDP console code. Signed-off-by: Khalid Aziz Cc: Joe Perches Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/MAINTAINERS b/MAINTAINERS index a127097..a068fe4 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5118,6 +5118,11 @@ F: drivers/i2c/busses/i2c-pca-* F: include/linux/i2c-algo-pca.h F: include/linux/i2c-pca-platform.h +PCDP - PRIMARY CONSOLE AND DEBUG PORT +M: Khalid Aziz +S: Maintained +F: drivers/firmware/pcdp.* + PCI ERROR RECOVERY M: Linas Vepstas L: linux-pci@vger.kernel.org -- cgit v0.10.2 From cd1e6f9e53e1a673a489826729709aaffa8ad621 Mon Sep 17 00:00:00 2001 From: Tushar Behera Date: Thu, 12 Apr 2012 12:49:14 -0700 Subject: drivers/rtc/rtc-s3c.c: fix compilation error Fix this error: drivers/rtc/rtc-s3c.c: At top level: drivers/rtc/rtc-s3c.c:671:3: error: request for member `data' in something not a structure or union drivers/rtc/rtc-s3c.c:674:3: error: request for member `data' in something not a structure or union drivers/rtc/rtc-s3c.c:677:3: error: request for member `data' in something not a structure or union drivers/rtc/rtc-s3c.c:680:3: error: request for member `data' in something not a structure or union Signed-off-by: Tushar Behera Cc: Heiko Stuebner Cc: Alessandro Zummo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c index 9ccea13..2087953 100644 --- a/drivers/rtc/rtc-s3c.c +++ b/drivers/rtc/rtc-s3c.c @@ -667,16 +667,16 @@ static int s3c_rtc_resume(struct platform_device *pdev) #ifdef CONFIG_OF static const struct of_device_id s3c_rtc_dt_match[] = { { - .compatible = "samsung,s3c2410-rtc" + .compatible = "samsung,s3c2410-rtc", .data = TYPE_S3C2410, }, { - .compatible = "samsung,s3c2416-rtc" + .compatible = "samsung,s3c2416-rtc", .data = TYPE_S3C2416, }, { - .compatible = "samsung,s3c2443-rtc" + .compatible = "samsung,s3c2443-rtc", .data = TYPE_S3C2443, }, { - .compatible = "samsung,s3c6410-rtc" + .compatible = "samsung,s3c6410-rtc", .data = TYPE_S3C64XX, }, {}, -- cgit v0.10.2 From c3cba9281ba39f3aef377fe52890e2d8f1e6dae3 Mon Sep 17 00:00:00 2001 From: Tushar Behera Date: Thu, 12 Apr 2012 12:49:14 -0700 Subject: drivers/rtc/rtc-s3c.c: add placeholder for driver private data Driver data field is a pointer, hence assigning that to an integer results in compilation warnings. Fixes following compilation warnings: drivers/rtc/rtc-s3c.c: In function `s3c_rtc_get_driver_data': drivers/rtc/rtc-s3c.c:452:3: warning: return makes integer from pointer without a cast [enabled by default] drivers/rtc/rtc-s3c.c: At top level: drivers/rtc/rtc-s3c.c:674:3: warning: initialization makes pointer from integer without a cast [enabled by default] drivers/rtc/rtc-s3c.c:674:3: warning: (near initialization for `s3c_rtc_dt_match[1].data') [enabled by default] drivers/rtc/rtc-s3c.c:677:3: warning: initialization makes pointer from integer without a cast [enabled by default] drivers/rtc/rtc-s3c.c:677:3: warning: (near initialization for `s3c_rtc_dt_match[2].data') [enabled by default] drivers/rtc/rtc-s3c.c:680:3: warning: initialization makes pointer from integer without a cast [enabled by default] drivers/rtc/rtc-s3c.c:680:3: warning: (near initialization for `s3c_rtc_dt_match[3].data') [enabled by default] Signed-off-by: Tushar Behera Cc: Heiko Stuebner Cc: Alessandro Zummo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c index 2087953..3f3a297 100644 --- a/drivers/rtc/rtc-s3c.c +++ b/drivers/rtc/rtc-s3c.c @@ -40,6 +40,10 @@ enum s3c_cpu_type { TYPE_S3C64XX, }; +struct s3c_rtc_drv_data { + int cpu_type; +}; + /* I have yet to find an S3C implementation with more than one * of these rtc blocks in */ @@ -446,10 +450,12 @@ static const struct of_device_id s3c_rtc_dt_match[]; static inline int s3c_rtc_get_driver_data(struct platform_device *pdev) { #ifdef CONFIG_OF + struct s3c_rtc_drv_data *data; if (pdev->dev.of_node) { const struct of_device_id *match; match = of_match_node(s3c_rtc_dt_match, pdev->dev.of_node); - return match->data; + data = (struct s3c_rtc_drv_data *) match->data; + return data->cpu_type; } #endif return platform_get_device_id(pdev)->driver_data; @@ -664,20 +670,27 @@ static int s3c_rtc_resume(struct platform_device *pdev) #define s3c_rtc_resume NULL #endif +static struct s3c_rtc_drv_data s3c_rtc_drv_data_array[] = { + [TYPE_S3C2410] = { TYPE_S3C2410 }, + [TYPE_S3C2416] = { TYPE_S3C2416 }, + [TYPE_S3C2443] = { TYPE_S3C2443 }, + [TYPE_S3C64XX] = { TYPE_S3C64XX }, +}; + #ifdef CONFIG_OF static const struct of_device_id s3c_rtc_dt_match[] = { { .compatible = "samsung,s3c2410-rtc", - .data = TYPE_S3C2410, + .data = &s3c_rtc_drv_data_array[TYPE_S3C2410], }, { .compatible = "samsung,s3c2416-rtc", - .data = TYPE_S3C2416, + .data = &s3c_rtc_drv_data_array[TYPE_S3C2416], }, { .compatible = "samsung,s3c2443-rtc", - .data = TYPE_S3C2443, + .data = &s3c_rtc_drv_data_array[TYPE_S3C2443], }, { .compatible = "samsung,s3c6410-rtc", - .data = TYPE_S3C64XX, + .data = &s3c_rtc_drv_data_array[TYPE_S3C64XX], }, {}, }; -- cgit v0.10.2 From f3ec434c69ac7f447ff6e6389c19727c9f002087 Mon Sep 17 00:00:00 2001 From: Konstantin Shlyakhovoy Date: Thu, 12 Apr 2012 12:49:15 -0700 Subject: drivers/rtc/rtc-twl.c: use static register while reading time RTC stores time and date in several registers. Due to the fact that these registers can't be read instantaneously, there is a chance that reading from counting registers gives an error of one minute, one hour, one day, etc. To address this issue, the RTC has hardware support to copy the RTC counting registers to static shadowed registers. The current implementation does not use this feature, and in a stress test, we can reproduce this error at a rate of around two times per 300000 readings. Fix the implementation to ensure that the right snapshot of time is captured. Signed-off-by: Konstantin Shlyakhovoy Signed-off-by: Nishanth Menon Cc: Alessandro Zummo Cc: Benoit Cousson Cc: linux-omap Acked-by: Mykola Oleksiienko Acked-by: Oleksandr Dmytryshyn Acked-by: Graeme Gregory Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/rtc/rtc-twl.c b/drivers/rtc/rtc-twl.c index 4c2c6df..258abea 100644 --- a/drivers/rtc/rtc-twl.c +++ b/drivers/rtc/rtc-twl.c @@ -112,6 +112,7 @@ static const u8 twl6030_rtc_reg_map[] = { #define BIT_RTC_CTRL_REG_TEST_MODE_M 0x10 #define BIT_RTC_CTRL_REG_SET_32_COUNTER_M 0x20 #define BIT_RTC_CTRL_REG_GET_TIME_M 0x40 +#define BIT_RTC_CTRL_REG_RTC_V_OPT 0x80 /* RTC_STATUS_REG bitfields */ #define BIT_RTC_STATUS_REG_RUN_M 0x02 @@ -235,25 +236,57 @@ static int twl_rtc_read_time(struct device *dev, struct rtc_time *tm) unsigned char rtc_data[ALL_TIME_REGS + 1]; int ret; u8 save_control; + u8 rtc_control; ret = twl_rtc_read_u8(&save_control, REG_RTC_CTRL_REG); - if (ret < 0) + if (ret < 0) { + dev_err(dev, "%s: reading CTRL_REG, error %d\n", __func__, ret); return ret; + } + /* for twl6030/32 make sure BIT_RTC_CTRL_REG_GET_TIME_M is clear */ + if (twl_class_is_6030()) { + if (save_control & BIT_RTC_CTRL_REG_GET_TIME_M) { + save_control &= ~BIT_RTC_CTRL_REG_GET_TIME_M; + ret = twl_rtc_write_u8(save_control, REG_RTC_CTRL_REG); + if (ret < 0) { + dev_err(dev, "%s clr GET_TIME, error %d\n", + __func__, ret); + return ret; + } + } + } - save_control |= BIT_RTC_CTRL_REG_GET_TIME_M; + /* Copy RTC counting registers to static registers or latches */ + rtc_control = save_control | BIT_RTC_CTRL_REG_GET_TIME_M; - ret = twl_rtc_write_u8(save_control, REG_RTC_CTRL_REG); - if (ret < 0) + /* for twl6030/32 enable read access to static shadowed registers */ + if (twl_class_is_6030()) + rtc_control |= BIT_RTC_CTRL_REG_RTC_V_OPT; + + ret = twl_rtc_write_u8(rtc_control, REG_RTC_CTRL_REG); + if (ret < 0) { + dev_err(dev, "%s: writing CTRL_REG, error %d\n", __func__, ret); return ret; + } ret = twl_i2c_read(TWL_MODULE_RTC, rtc_data, (rtc_reg_map[REG_SECONDS_REG]), ALL_TIME_REGS); if (ret < 0) { - dev_err(dev, "rtc_read_time error %d\n", ret); + dev_err(dev, "%s: reading data, error %d\n", __func__, ret); return ret; } + /* for twl6030 restore original state of rtc control register */ + if (twl_class_is_6030()) { + ret = twl_rtc_write_u8(save_control, REG_RTC_CTRL_REG); + if (ret < 0) { + dev_err(dev, "%s: restore CTRL_REG, error %d\n", + __func__, ret); + return ret; + } + } + tm->tm_sec = bcd2bin(rtc_data[0]); tm->tm_min = bcd2bin(rtc_data[1]); tm->tm_hour = bcd2bin(rtc_data[2]); -- cgit v0.10.2 From 66aebce747eaf9bc456bf1f1b217d8db843031d0 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Thu, 12 Apr 2012 12:49:15 -0700 Subject: hugetlb: fix race condition in hugetlb_fault() The race is as follows: Suppose a multi-threaded task forks a new process (on cpu A), thus bumping up the ref count on all the pages. While the fork is occurring (and thus we have marked all the PTEs as read-only), another thread in the original process (on cpu B) tries to write to a huge page, taking an access violation from the write-protect and calling hugetlb_cow(). Now, suppose the fork() fails. It will undo the COW and decrement the ref count on the pages, so the ref count on the huge page drops back to 1. Meanwhile hugetlb_cow() also decrements the ref count by one on the original page, since the original address space doesn't need it any more, having copied a new page to replace the original page. This leaves the ref count at zero, and when we call unlock_page(), we panic. fork on CPU A fault on CPU B ============= ============== ... down_write(&parent->mmap_sem); down_write_nested(&child->mmap_sem); ... while duplicating vmas if error break; ... up_write(&child->mmap_sem); up_write(&parent->mmap_sem); ... down_read(&parent->mmap_sem); ... lock_page(page); handle COW page_mapcount(old_page) == 2 alloc and prepare new_page ... handle error page_remove_rmap(page); put_page(page); ... fold new_page into pte page_remove_rmap(page); put_page(page); ... oops ==> unlock_page(page); up_read(&parent->mmap_sem); The solution is to take an extra reference to the page while we are holding the lock on it. Signed-off-by: Chris Metcalf Cc: Hillf Danton Cc: Michal Hocko Cc: KAMEZAWA Hiroyuki Cc: Hugh Dickins Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/hugetlb.c b/mm/hugetlb.c index b8ce6f4..cd65cb1 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -2791,6 +2791,7 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, * so no worry about deadlock. */ page = pte_page(entry); + get_page(page); if (page != pagecache_page) lock_page(page); @@ -2822,6 +2823,7 @@ out_page_table_lock: } if (page != pagecache_page) unlock_page(page); + put_page(page); out_mutex: mutex_unlock(&hugetlb_instantiation_mutex); -- cgit v0.10.2 From 41c93088127df2579e8ca64010929ec9e41d5543 Mon Sep 17 00:00:00 2001 From: Ying Han Date: Thu, 12 Apr 2012 12:49:16 -0700 Subject: Revert "mm: vmscan: fix misused nr_reclaimed in shrink_mem_cgroup_zone()" This reverts commit c38446cc65e1f2b3eb8630c53943b94c4f65f670. Before the commit, the code makes senses to me but not after the commit. The "nr_reclaimed" is the number of pages reclaimed by scanning through the memcg's lru lists. The "nr_to_reclaim" is the target value for the whole function. For example, we like to early break the reclaim if reclaimed 32 pages under direct reclaim (not DEF_PRIORITY). After the reverted commit, the target "nr_to_reclaim" is decremented each time by "nr_reclaimed" but we still use it to compare the "nr_reclaimed". It just doesn't make sense to me... Signed-off-by: Ying Han Acked-by: Hugh Dickins Cc: Rik van Riel Cc: Hillf Danton Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/vmscan.c b/mm/vmscan.c index 33c332b..1a51868 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2107,12 +2107,7 @@ restart: * with multiple processes reclaiming pages, the total * freeing target can get unreasonably large. */ - if (nr_reclaimed >= nr_to_reclaim) - nr_to_reclaim = 0; - else - nr_to_reclaim -= nr_reclaimed; - - if (!nr_to_reclaim && priority < DEF_PRIORITY) + if (nr_reclaimed >= nr_to_reclaim && priority < DEF_PRIORITY) break; } blk_finish_plug(&plug); -- cgit v0.10.2 From 2f3972168353d355854d6381f1f360ce83b723e5 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 12 Apr 2012 12:49:16 -0700 Subject: drivers/rtc/rtc-pl031.c: enable clock on all ST variants The ST variants of the PL031 all require bit 26 in the control register to be set before they work properly. Discovered this when testing on the Nomadik board where it would suprisingly just stand still. Signed-off-by: Linus Walleij Cc: Mian Yousaf Kaukab Cc: Alessandro Rubini Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/rtc/rtc-pl031.c b/drivers/rtc/rtc-pl031.c index 692de73..684ef4b 100644 --- a/drivers/rtc/rtc-pl031.c +++ b/drivers/rtc/rtc-pl031.c @@ -339,8 +339,7 @@ static int pl031_probe(struct amba_device *adev, const struct amba_id *id) dev_dbg(&adev->dev, "revision = 0x%01x\n", ldata->hw_revision); /* Enable the clockwatch on ST Variants */ - if ((ldata->hw_designer == AMBA_VENDOR_ST) && - (ldata->hw_revision > 1)) + if (ldata->hw_designer == AMBA_VENDOR_ST) writel(readl(ldata->base + RTC_CR) | RTC_CR_CWEN, ldata->base + RTC_CR); -- cgit v0.10.2 From 026ee1f66aaa7f01b617a0ba89ac4b531f9603f1 Mon Sep 17 00:00:00 2001 From: Jason Wessel Date: Thu, 12 Apr 2012 12:49:17 -0700 Subject: panic: fix stack dump print on direct call to panic() Commit 6e6f0a1f0fa6 ("panic: don't print redundant backtraces on oops") causes a regression where no stack trace will be printed at all for the case where kernel code calls panic() directly while not processing an oops, and of course there are 100's of instances of this type of call. The original commit executed the check (!oops_in_progress), but this will always be false because just before the dump_stack() there is a call to bust_spinlocks(1), which does the following: void __attribute__((weak)) bust_spinlocks(int yes) { if (yes) { ++oops_in_progress; The proper way to resolve the problem that original commit tried to solve is to avoid printing a stack dump from panic() when the either of the following conditions is true: 1) TAINT_DIE has been set (this is done by oops_end()) This indicates and oops has already been printed. 2) oops_in_progress > 1 This guards against the rare case where panic() is invoked a second time, or in between oops_begin() and oops_end() Signed-off-by: Jason Wessel Cc: Andi Kleen Cc: [3.3+] Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/kernel/panic.c b/kernel/panic.c index 80aed44..8ed89a1 100644 --- a/kernel/panic.c +++ b/kernel/panic.c @@ -97,7 +97,7 @@ void panic(const char *fmt, ...) /* * Avoid nested stack-dumping if a panic occurs during oops processing */ - if (!oops_in_progress) + if (!test_taint(TAINT_DIE) && oops_in_progress <= 1) dump_stack(); #endif -- cgit v0.10.2 From 62d2feb9803f18c4e3c8a1a2c7e30a54df8a1d72 Mon Sep 17 00:00:00 2001 From: Marek Belisko Date: Thu, 12 Apr 2012 21:48:03 +0200 Subject: staging: iio: hmc5843: Fix crash in probe function. Fix crash after issuing: echo hmc5843 0x1e > /sys/class/i2c-dev/i2c-2/device/new_device [ 37.180999] device: '2-001e': device_add [ 37.188293] bus: 'i2c': add device 2-001e [ 37.194549] PM: Adding info for i2c:2-001e [ 37.200958] bus: 'i2c': driver_probe_device: matched device 2-001e with driver hmc5843 [ 37.210815] bus: 'i2c': really_probe: probing driver hmc5843 with device 2-001e [ 37.224884] HMC5843 initialized [ 37.228759] ------------[ cut here ]------------ [ 37.233612] kernel BUG at mm/slab.c:505! [ 37.237701] Internal error: Oops - BUG: 0 [#1] PREEMPT [ 37.243103] Modules linked in: [ 37.246337] CPU: 0 Not tainted (3.3.1-gta04+ #28) [ 37.251647] PC is at kfree+0x84/0x144 [ 37.255493] LR is at kfree+0x20/0x144 [ 37.259338] pc : [] lr : [] psr: 40000093 [ 37.259368] sp : de249cd8 ip : 0000000c fp : 00000090 [ 37.271362] r10: 0000000a r9 : de229eac r8 : c0236274 [ 37.276855] r7 : c09d6490 r6 : a0000013 r5 : de229c00 r4 : de229c10 [ 37.283691] r3 : c0f00218 r2 : 00000400 r1 : c0eea000 r0 : c00b4028 [ 37.290527] Flags: nZcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user [ 37.298095] Control: 10c5387d Table: 9e1d0019 DAC: 00000015 [ 37.304107] Process sh (pid: 91, stack limit = 0xde2482f0) [ 37.309844] Stack: (0xde249cd8 to 0xde24a000) [ 37.314422] 9cc0: de229c10 de229c00 [ 37.322998] 9ce0: de229c10 ffffffea 00000005 c0236274 de140a80 c00b4798 dec00080 de140a80 [ 37.331573] 9d00: c032f37c dec00080 000080d0 00000001 de229c00 de229c10 c048d578 00000005 [ 37.340148] 9d20: de229eac 0000000a 00000090 c032fa40 00000001 00000000 00000001 de229c10 [ 37.348724] 9d40: de229eac 00000029 c075b558 00000001 00000003 00000004 de229c10 c048d594 [ 37.357299] 9d60: 00000000 60000013 00000018 205b0007 37332020 3432322e 5d343838 c0060020 [ 37.365905] 9d80: de251600 00000001 00000000 de251600 00000001 c0065a84 de229c00 de229c48 [ 37.374481] 9da0: 00000006 0048d62c de229c38 de229c00 de229c00 de1f6c00 de1f6c20 00000001 [ 37.383056] 9dc0: 00000000 c048d62c 00000000 de229c00 de229c00 de1f6c00 de1f6c20 00000001 [ 37.391632] 9de0: 00000000 c048d62c 00000000 c0330164 00000000 de1f6c20 c048d62c de1f6c00 [ 37.400207] 9e00: c0330078 de1f6c04 c078d714 de189b58 00000000 c02ccfd8 de1f6c20 c0795f40 [ 37.408782] 9e20: c0238330 00000000 00000000 c02381a8 de1b9fc0 de1f6c20 de1f6c20 de249e48 [ 37.417358] 9e40: c0238330 c0236bb0 decdbed8 de7d0f14 de1f6c20 de1f6c20 de1f6c54 de1f6c20 [ 37.425933] 9e60: 00000000 c0238030 de1f6c20 c078d7bc de1f6c20 c02377ec de1f6c20 de1f6c28 [ 37.434509] 9e80: dee64cb0 c0236138 c047c554 de189b58 00000000 c004b45c de1f6c20 de1f6cd8 [ 37.443084] 9ea0: c0edfa6c de1f6c00 dee64c68 de1f6c04 de1f6c20 dee64cb8 c047c554 de189b58 [ 37.451690] 9ec0: 00000000 c02cd634 dee64c68 de249ef4 de23b008 dee64cb0 0000000d de23b000 [ 37.460266] 9ee0: de23b007 c02cd78c 00000002 00000000 00000000 35636d68 00333438 00000000 [ 37.468841] 9f00: 00000000 00000000 001e0000 00000000 00000000 00000000 00000000 0a10cec0 [ 37.477416] 9f20: 00000002 de249f80 0000000d dee62990 de189b40 c0234d88 0000000d c010c354 [ 37.485992] 9f40: 0000000d de210f28 000acc88 de249f80 0000000d de248000 00000000 c00b7bf8 [ 37.494567] 9f60: de210f28 000acc88 de210f28 000acc88 00000000 00000000 0000000d c00b7ed8 [ 37.503143] 9f80: 00000000 00000000 0000000d 00000000 0007fa28 0000000d 000acc88 00000004 [ 37.511718] 9fa0: c000e544 c000e380 0007fa28 0000000d 00000001 000acc88 0000000d 00000000 [ 37.520294] 9fc0: 0007fa28 0000000d 000acc88 00000004 00000001 00000020 00000002 00000000 [ 37.528869] 9fe0: 00000000 beab8624 0000ea05 b6eaebac 600d0010 00000001 00000000 00000000 [ 37.537475] [] (kfree+0x84/0x144) from [] (device_add+0x530/0x57c) [ 37.545806] [] (device_add+0x530/0x57c) from [] (iio_device_register+0x8c8/0x990) [ 37.555480] [] (iio_device_register+0x8c8/0x990) from [] (hmc5843_probe+0xec/0x114) [ 37.565338] [] (hmc5843_probe+0xec/0x114) from [] (i2c_device_probe+0xc4/0xf8) [ 37.574737] [] (i2c_device_probe+0xc4/0xf8) from [] (driver_probe_device+0x118/0x218) [ 37.584777] [] (driver_probe_device+0x118/0x218) from [] (bus_for_each_drv+0x4c/0x84) [ 37.594818] [] (bus_for_each_drv+0x4c/0x84) from [] (device_attach+0x78/0xa4) [ 37.604125] [] (device_attach+0x78/0xa4) from [] (bus_probe_device+0x28/0x9c) [ 37.613433] [] (bus_probe_device+0x28/0x9c) from [] (device_add+0x3f4/0x57c) [ 37.622650] [] (device_add+0x3f4/0x57c) from [] (i2c_new_device+0xf8/0x19c) [ 37.631805] [] (i2c_new_device+0xf8/0x19c) from [] (i2c_sysfs_new_device+0xb4/0x130) [ 37.641754] [] (i2c_sysfs_new_device+0xb4/0x130) from [] (dev_attr_store+0x18/0x24) [ 37.651611] [] (dev_attr_store+0x18/0x24) from [] (sysfs_write_file+0x10c/0x140) [ 37.661193] [] (sysfs_write_file+0x10c/0x140) from [] (vfs_write+0xb0/0x178) [ 37.670410] [] (vfs_write+0xb0/0x178) from [] (sys_write+0x3c/0x68) [ 37.678833] [] (sys_write+0x3c/0x68) from [] (ret_fast_syscall+0x0/0x3c) [ 37.687683] Code: 1593301c e5932000 e3120080 1a000000 (e7f001f2) [ 37.700775] ---[ end trace aaf805debdb69390 ]--- Client data was assigned to iio_dev structure in probe but in hmc5843_init_client function casted to private driver data structure which is wrong. Possibly calling mutex_init(&data->lock); corrupt data which the lead to above crash. Signed-off-by: Marek Belisko Cc: stable Acked-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c index 91dd3da..e00b416 100644 --- a/drivers/staging/iio/magnetometer/hmc5843.c +++ b/drivers/staging/iio/magnetometer/hmc5843.c @@ -521,7 +521,9 @@ static int hmc5843_detect(struct i2c_client *client, /* Called when we have found a new HMC5843. */ static void hmc5843_init_client(struct i2c_client *client) { - struct hmc5843_data *data = i2c_get_clientdata(client); + struct iio_dev *indio_dev = i2c_get_clientdata(client); + struct hmc5843_data *data = iio_priv(indio_dev); + hmc5843_set_meas_conf(client, data->meas_conf); hmc5843_set_rate(client, data->rate); hmc5843_configure(client, data->operating_mode); -- cgit v0.10.2 From 17b7e1ba1e2ecc9a09f5e154e555accd2a2eaedf Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Thu, 12 Apr 2012 00:35:46 +0200 Subject: staging: vt6656: Don't leak memory in drivers/staging/vt6656/ioctl.c::private_ioctl() If copy_to_user() fails in the WLAN_CMD_GET_NODE_LIST case of the switch in drivers/staging/vt6656/ioctl.c::private_ioctl() we'll leak the memory allocated to 'pNodeList'. Fix that by kfree'ing the memory in the failure case. Also remove a pointless cast (to type 'PSNodeList') of a kmalloc() return value - kmalloc() returns a void pointer that is implicitly converted, so there is no need for an explicit cast. Signed-off-by: Jesper Juhl Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/vt6656/ioctl.c b/drivers/staging/vt6656/ioctl.c index 1463d76..d59456c 100644 --- a/drivers/staging/vt6656/ioctl.c +++ b/drivers/staging/vt6656/ioctl.c @@ -565,7 +565,7 @@ int private_ioctl(PSDevice pDevice, struct ifreq *rq) result = -ENOMEM; break; } - pNodeList = (PSNodeList)kmalloc(sizeof(SNodeList) + (sNodeList.uItem * sizeof(SNodeItem)), (int)GFP_ATOMIC); + pNodeList = kmalloc(sizeof(SNodeList) + (sNodeList.uItem * sizeof(SNodeItem)), (int)GFP_ATOMIC); if (pNodeList == NULL) { result = -ENOMEM; break; @@ -601,6 +601,7 @@ int private_ioctl(PSDevice pDevice, struct ifreq *rq) } } if (copy_to_user(pReq->data, pNodeList, sizeof(SNodeList) + (sNodeList.uItem * sizeof(SNodeItem)))) { + kfree(pNodeList); result = -EFAULT; break; } -- cgit v0.10.2 From 474a89885f77953b12bce9f23660c31ef5c2630e Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Wed, 11 Apr 2012 22:10:20 +0200 Subject: staging: android: fix mem leaks in __persistent_ram_init() If, in __persistent_ram_init(), the call to persistent_ram_buffer_init() fails or the call to persistent_ram_init_ecc() fails then we fail to free the memory we allocated to 'prz' with kzalloc() - thus leaking it. To prevent the leaks I consolidated all error exits from the function at a 'err:' label at the end and made all error cases jump to that label where we can then make sure we always free 'prz'. This is safe since all the situations where the code bails out happen before 'prz' has been stored anywhere and although we'll do a redundant kfree(NULL) call in the case of kzalloc() itself failing that's OK since kfree() deals gracefully with NULL pointers and I felt it was more important to keep all error exits at a single location than to avoid that one harmless/redundant kfree() on a error path. Signed-off-by: Jesper Juhl Acked-by: Colin Cross Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/persistent_ram.c b/drivers/staging/android/persistent_ram.c index e08f257..8d8c1e3 100644 --- a/drivers/staging/android/persistent_ram.c +++ b/drivers/staging/android/persistent_ram.c @@ -399,12 +399,12 @@ static __init struct persistent_ram_zone *__persistent_ram_init(struct device *dev, bool ecc) { struct persistent_ram_zone *prz; - int ret; + int ret = -ENOMEM; prz = kzalloc(sizeof(struct persistent_ram_zone), GFP_KERNEL); if (!prz) { pr_err("persistent_ram: failed to allocate persistent ram zone\n"); - return ERR_PTR(-ENOMEM); + goto err; } INIT_LIST_HEAD(&prz->node); @@ -412,13 +412,13 @@ struct persistent_ram_zone *__persistent_ram_init(struct device *dev, bool ecc) ret = persistent_ram_buffer_init(dev_name(dev), prz); if (ret) { pr_err("persistent_ram: failed to initialize buffer\n"); - return ERR_PTR(ret); + goto err; } prz->ecc = ecc; ret = persistent_ram_init_ecc(prz, prz->buffer_size); if (ret) - return ERR_PTR(ret); + goto err; if (prz->buffer->sig == PERSISTENT_RAM_SIG) { if (buffer_size(prz) > prz->buffer_size || @@ -442,6 +442,9 @@ struct persistent_ram_zone *__persistent_ram_init(struct device *dev, bool ecc) atomic_set(&prz->buffer->size, 0); return prz; +err: + kfree(prz); + return ERR_PTR(ret); } struct persistent_ram_zone * __init -- cgit v0.10.2 From 5269a9ab7def9a3116663347d59c4d70afa2d180 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Thu, 12 Apr 2012 14:42:15 -0600 Subject: irq_domain: fix type mismatch in debugfs output format sizeof(void*) returns an unsigned long, but it was being used as a width parameter to a "%-*s" format string which requires an int. On 64 bit platforms this causes a type mismatch: linux/kernel/irq/irqdomain.c:575: warning: field width should have type 'int', but argument 6 has type 'long unsigned int' This change casts the size to an int so printf gets the right data type. Reported-by: Andreas Schwab Signed-off-by: Grant Likely Cc: David Daney diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index d34413e..0e0ba5f 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -629,7 +629,8 @@ static int virq_debug_show(struct seq_file *m, void *private) int i; seq_printf(m, "%-5s %-7s %-15s %-*s %s\n", "irq", "hwirq", - "chip name", 2 * sizeof(void *) + 2, "chip data", "domain name"); + "chip name", (int)(2 * sizeof(void *) + 2), "chip data", + "domain name"); for (i = 1; i < nr_irqs; i++) { desc = irq_to_desc(i); -- cgit v0.10.2 From d53ba47484ed6245e640ee4bfe9d21e9bfc15765 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Thu, 12 Apr 2012 16:03:57 -0400 Subject: Btrfs: use commit root when loading free space cache A user reported that booting his box up with btrfs root on 3.4 was way slower than on 3.3 because I removed the ideal caching code. It turns out that we don't load the free space cache if we're in a commit for deadlock reasons, but since we're reading the cache and it hasn't changed yet we are safe reading the inode and free space item from the commit root, so do that and remove all of the deadlock checks so we don't unnecessarily skip loading the free space cache. The user reported this fixed the slowness. Thanks, Tested-by: Calvin Walton Signed-off-by: Josef Bacik Signed-off-by: Chris Mason diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index a2134d8..2b35f8d 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -529,9 +529,7 @@ static int cache_block_group(struct btrfs_block_group_cache *cache, * allocate blocks for the tree root we can't do the fast caching since * we likely hold important locks. */ - if (trans && (!trans->transaction->in_commit) && - (root && root != root->fs_info->tree_root) && - btrfs_test_opt(root, SPACE_CACHE)) { + if (fs_info->mount_opt & BTRFS_MOUNT_SPACE_CACHE) { ret = load_free_space_cache(fs_info, cache); spin_lock(&cache->lock); diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 054707e..baaa518 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -748,13 +748,6 @@ int load_free_space_cache(struct btrfs_fs_info *fs_info, u64 used = btrfs_block_group_used(&block_group->item); /* - * If we're unmounting then just return, since this does a search on the - * normal root and not the commit root and we could deadlock. - */ - if (btrfs_fs_closing(fs_info)) - return 0; - - /* * If this block group has been marked to be cleared for one reason or * another then we can't trust the on disk cache, so just return. */ @@ -768,6 +761,8 @@ int load_free_space_cache(struct btrfs_fs_info *fs_info, path = btrfs_alloc_path(); if (!path) return 0; + path->search_commit_root = 1; + path->skip_locking = 1; inode = lookup_free_space_inode(root, block_group, path); if (IS_ERR(inode)) { -- cgit v0.10.2 From 69349c2dc01c489eccaa4c472542c08e370c6d7e Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Thu, 12 Apr 2012 19:46:32 -0400 Subject: kconfig: fix IS_ENABLED to not require all options to be defined Using IS_ENABLED() within C (vs. within CPP #if statements) in its current form requires us to actually define every possible bool/tristate Kconfig option twice (__enabled_* and __enabled_*_MODULE variants). This results in a huge autoconf.h file, on the order of 16k lines for a x86_64 defconfig. Fixing IS_ENABLED to be able to work on the smaller subset of just things that we really have defined is step one to fixing this. Which means it has to not choke when fed non-enabled options, such as: include/linux/netdevice.h:964:1: warning: "__enabled_CONFIG_FCOE_MODULE" is not defined [-Wundef] The original prototype of how to implement a C and preprocessor compatible way of doing this came from the Google+ user "comex ." in response to Linus' crowdsourcing challenge for a possible improvement on his earlier C specific solution: #define config_enabled(x) (__stringify(x)[0] == '1') In this implementation, I've chosen variable names that hopefully make how it works more understandable. Signed-off-by: Paul Gortmaker Signed-off-by: Linus Torvalds diff --git a/include/linux/kconfig.h b/include/linux/kconfig.h index 067eda0..be342b9 100644 --- a/include/linux/kconfig.h +++ b/include/linux/kconfig.h @@ -4,29 +4,43 @@ #include /* - * Helper macros to use CONFIG_ options in C expressions. Note that + * Helper macros to use CONFIG_ options in C/CPP expressions. Note that * these only work with boolean and tristate options. */ /* + * Getting something that works in C and CPP for an arg that may or may + * not be defined is tricky. Here, if we have "#define CONFIG_BOOGER 1" + * we match on the placeholder define, insert the "0," for arg1 and generate + * the triplet (0, 1, 0). Then the last step cherry picks the 2nd arg (a one). + * When CONFIG_BOOGER is not defined, we generate a (... 1, 0) pair, and when + * the last step cherry picks the 2nd arg, we get a zero. + */ +#define __ARG_PLACEHOLDER_1 0, +#define config_enabled(cfg) _config_enabled(cfg) +#define _config_enabled(value) __config_enabled(__ARG_PLACEHOLDER_##value) +#define __config_enabled(arg1_or_junk) ___config_enabled(arg1_or_junk 1, 0) +#define ___config_enabled(__ignored, val, ...) val + +/* * IS_ENABLED(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'y' or 'm', * 0 otherwise. * */ #define IS_ENABLED(option) \ - (__enabled_ ## option || __enabled_ ## option ## _MODULE) + (config_enabled(option) || config_enabled(option##_MODULE)) /* * IS_BUILTIN(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'y', 0 * otherwise. For boolean options, this is equivalent to * IS_ENABLED(CONFIG_FOO). */ -#define IS_BUILTIN(option) __enabled_ ## option +#define IS_BUILTIN(option) config_enabled(option) /* * IS_MODULE(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'm', 0 * otherwise. */ -#define IS_MODULE(option) __enabled_ ## option ## _MODULE +#define IS_MODULE(option) config_enabled(option##_MODULE) #endif /* __LINUX_KCONFIG_H */ -- cgit v0.10.2 From a959613533a176a8f5f402585827e94a5220d2db Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Thu, 12 Apr 2012 19:46:33 -0400 Subject: Revert "kconfig: fix __enabled_ macros definition for invisible and un-selected symbols" This reverts commit 953742c8fe8ac45be453fee959d7be40cd89f920. Dumping two lines into autoconf.h for all existing Kconfig options results in a giant file (~16k lines) we have to process each time we compile something. We've weaned IS_ENABLED() and similar off of requiring the __enabled_ definitions so now we can revert the change which caused all the extra lines. Signed-off-by: Paul Gortmaker Signed-off-by: Linus Torvalds diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c index 0586085..9d06744 100644 --- a/scripts/kconfig/confdata.c +++ b/scripts/kconfig/confdata.c @@ -489,6 +489,17 @@ header_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) fprintf(fp, "#define %s%s%s 1\n", CONFIG_, sym->name, suffix); } + /* + * Generate the __enabled_CONFIG_* and + * __enabled_CONFIG_*_MODULE macros for use by the + * IS_{ENABLED,BUILTIN,MODULE} macros. The _MODULE variant is + * generated even for booleans so that the IS_ENABLED() macro + * works. + */ + fprintf(fp, "#define __enabled_" CONFIG_ "%s %d\n", + sym->name, (*value == 'y')); + fprintf(fp, "#define __enabled_" CONFIG_ "%s_MODULE %d\n", + sym->name, (*value == 'm')); break; } case S_HEX: { @@ -540,35 +551,6 @@ static struct conf_printer header_printer_cb = }; /* - * Generate the __enabled_CONFIG_* and __enabled_CONFIG_*_MODULE macros for - * use by the IS_{ENABLED,BUILTIN,MODULE} macros. The _MODULE variant is - * generated even for booleans so that the IS_ENABLED() macro works. - */ -static void -header_print__enabled_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) -{ - - switch (sym->type) { - case S_BOOLEAN: - case S_TRISTATE: { - fprintf(fp, "#define __enabled_" CONFIG_ "%s %d\n", - sym->name, (*value == 'y')); - fprintf(fp, "#define __enabled_" CONFIG_ "%s_MODULE %d\n", - sym->name, (*value == 'm')); - break; - } - default: - break; - } -} - -static struct conf_printer header__enabled_printer_cb = -{ - .print_symbol = header_print__enabled_symbol, - .print_comment = header_print_comment, -}; - -/* * Tristate printer * * This printer is used when generating the `include/config/tristate.conf' file. @@ -949,16 +931,11 @@ int conf_write_autoconf(void) conf_write_heading(out_h, &header_printer_cb, NULL); for_all_symbols(i, sym) { - if (!sym->name) - continue; - sym_calc_value(sym); - - conf_write_symbol(out_h, sym, &header__enabled_printer_cb, NULL); - - if (!(sym->flags & SYMBOL_WRITE)) + if (!(sym->flags & SYMBOL_WRITE) || !sym->name) continue; + /* write symbol to auto.conf, tristate and header files */ conf_write_symbol(out, sym, &kconfig_printer_cb, (void *)1); conf_write_symbol(tristate, sym, &tristate_printer_cb, (void *)1); -- cgit v0.10.2 From e4757cab4cff01e9c47b14376be7438694032c3c Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Thu, 12 Apr 2012 19:46:34 -0400 Subject: kconfig: delete last traces of __enabled_ from autoconf.h We've now fixed IS_ENABLED() and friends to not require any special "__enabled_" prefixed versions of the normal Kconfig options, so delete the last traces of them being generated. Signed-off-by: Paul Gortmaker Signed-off-by: Linus Torvalds diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c index 9d06744..52577f0 100644 --- a/scripts/kconfig/confdata.c +++ b/scripts/kconfig/confdata.c @@ -489,17 +489,6 @@ header_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) fprintf(fp, "#define %s%s%s 1\n", CONFIG_, sym->name, suffix); } - /* - * Generate the __enabled_CONFIG_* and - * __enabled_CONFIG_*_MODULE macros for use by the - * IS_{ENABLED,BUILTIN,MODULE} macros. The _MODULE variant is - * generated even for booleans so that the IS_ENABLED() macro - * works. - */ - fprintf(fp, "#define __enabled_" CONFIG_ "%s %d\n", - sym->name, (*value == 'y')); - fprintf(fp, "#define __enabled_" CONFIG_ "%s_MODULE %d\n", - sym->name, (*value == 'm')); break; } case S_HEX: { -- cgit v0.10.2 From 7d7eb9ea314e992413620610b4d09c9cd5fa8959 Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Thu, 12 Apr 2012 22:11:25 +0200 Subject: ALSA: hda/realtek - Fix mem leak (and rid us of trailing whitespace). In sound/pci/hda/patch_realtek.c::alc_auto_fill_dac_nids(), in the 'for (;;)' loop, if the 'badness' value returned from fill_and_eval_dacs() is negative, then we'll return from the function without freeing the memory we allocated for 'best_cfg', thus leaking. Fix the leak by kfree()'ing the memory when badness is negative. While I was there I also noticed some trailing whitespace in the function that I removed (along with all other trailing whitespace in the file) - it didn't seem worth-while to do that as two patches, so I hope it's OK that I just did it all as one patch. Signed-off-by: Jesper Juhl Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 8f4a484..2508f81 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -3398,8 +3398,10 @@ static int alc_auto_fill_dac_nids(struct hda_codec *codec) for (;;) { badness = fill_and_eval_dacs(codec, fill_hardwired, fill_mio_first); - if (badness < 0) + if (badness < 0) { + kfree(best_cfg); return badness; + } debug_badness("==> lo_type=%d, wired=%d, mio=%d, badness=0x%x\n", cfg->line_out_type, fill_hardwired, fill_mio_first, badness); @@ -3434,7 +3436,7 @@ static int alc_auto_fill_dac_nids(struct hda_codec *codec) cfg->line_out_type = AUTO_PIN_SPEAKER_OUT; fill_hardwired = true; continue; - } + } if (cfg->hp_outs > 0 && cfg->line_out_type == AUTO_PIN_SPEAKER_OUT) { cfg->speaker_outs = cfg->line_outs; @@ -3448,7 +3450,7 @@ static int alc_auto_fill_dac_nids(struct hda_codec *codec) cfg->line_out_type = AUTO_PIN_HP_OUT; fill_hardwired = true; continue; - } + } break; } @@ -4423,7 +4425,7 @@ static int alc_parse_auto_config(struct hda_codec *codec, static int alc880_parse_auto_config(struct hda_codec *codec) { static const hda_nid_t alc880_ignore[] = { 0x1d, 0 }; - static const hda_nid_t alc880_ssids[] = { 0x15, 0x1b, 0x14, 0 }; + static const hda_nid_t alc880_ssids[] = { 0x15, 0x1b, 0x14, 0 }; return alc_parse_auto_config(codec, alc880_ignore, alc880_ssids); } @@ -6093,7 +6095,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = { * Basically the device should work as is without the fixup table. * If BIOS doesn't give a proper info, enable the corresponding * fixup entry. - */ + */ SND_PCI_QUIRK(0x1043, 0x8330, "ASUS Eeepc P703 P900A", ALC269_FIXUP_AMIC), SND_PCI_QUIRK(0x1043, 0x1013, "ASUS N61Da", ALC269_FIXUP_AMIC), @@ -6310,7 +6312,7 @@ static void alc_fixup_no_jack_detect(struct hda_codec *codec, { if (action == ALC_FIXUP_ACT_PRE_PROBE) codec->no_jack_detect = 1; -} +} static const struct alc_fixup alc861_fixups[] = { [ALC861_FIXUP_FSC_AMILO_PI1505] = { @@ -6728,7 +6730,7 @@ static const struct snd_pci_quirk alc662_fixup_tbl[] = { * Basically the device should work as is without the fixup table. * If BIOS doesn't give a proper info, enable the corresponding * fixup entry. - */ + */ SND_PCI_QUIRK(0x1043, 0x1000, "ASUS N50Vm", ALC662_FIXUP_ASUS_MODE1), SND_PCI_QUIRK(0x1043, 0x1092, "ASUS NB", ALC662_FIXUP_ASUS_MODE3), SND_PCI_QUIRK(0x1043, 0x1173, "ASUS K73Jn", ALC662_FIXUP_ASUS_MODE1), -- cgit v0.10.2 From 86fc49982369f6918dd9c6eeb70b38ab2303ed0a Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Thu, 12 Apr 2012 21:54:34 +0200 Subject: ASoC: cs42l73: don't use negative array index If cs42l73_get_mclkx_coeff() returns < 0 (which it can) in sound/soc/codecs/cs42l73.c::cs42l73_set_mclk(), then we'll be using the (negative) return value as array index on the very next line of code - that's bad. Catch the negative return value and propagate it to the caller (which checks for it) and things are a bit more sane :-) Signed-off-by: Jesper Juhl Signed-off-by: Mark Brown diff --git a/sound/soc/codecs/cs42l73.c b/sound/soc/codecs/cs42l73.c index 78979b3..07c44b7 100644 --- a/sound/soc/codecs/cs42l73.c +++ b/sound/soc/codecs/cs42l73.c @@ -929,6 +929,8 @@ static int cs42l73_set_mclk(struct snd_soc_dai *dai, unsigned int freq) /* MCLKX -> MCLK */ mclkx_coeff = cs42l73_get_mclkx_coeff(freq); + if (mclkx_coeff < 0) + return mclkx_coeff; mclk = cs42l73_mclkx_coeffs[mclkx_coeff].mclkx / cs42l73_mclkx_coeffs[mclkx_coeff].ratio; -- cgit v0.10.2 From 79cd76022044f8177bb00e3fd590ec8d6b5f8c35 Mon Sep 17 00:00:00 2001 From: Manoj Iyer Date: Mon, 9 Apr 2012 09:22:28 -0500 Subject: Bluetooth: btusb: Add vendor specific ID (0489 e042) for BCM20702A0 T: Bus=02 Lev=02 Prnt=02 Port=04 Cnt=01 Dev#= 3 Spd=12 MxCh= 0 D: Ver= 2.00 Cls=ff(vend.) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0489 ProdID=e042 Rev=01.12 S: Manufacturer=Broadcom Corp S: Product=BCM20702A0 S: SerialNumber=E4D53DCA61B5 C: #Ifs= 4 Cfg#= 1 Atr=e0 MxPwr=0mA I: If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none) I: If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none) I: If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none) I: If#= 3 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=01 Driver=(none) Reported-by: Dennis Chua Signed-off-by: Manoj Iyer Signed-off-by: Johan Hedberg diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 3311b81..9af450a 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -101,6 +101,7 @@ static struct usb_device_id btusb_table[] = { { USB_DEVICE(0x0c10, 0x0000) }, /* Broadcom BCM20702A0 */ + { USB_DEVICE(0x0489, 0xe042) }, { USB_DEVICE(0x0a5c, 0x21e3) }, { USB_DEVICE(0x0a5c, 0x21e6) }, { USB_DEVICE(0x0a5c, 0x21e8) }, -- cgit v0.10.2 From a956bd6f8583326b18348ab1452b4686778f785d Mon Sep 17 00:00:00 2001 From: Andreas Herrmann Date: Thu, 12 Apr 2012 16:48:01 +0200 Subject: x86, microcode: Fix sysfs warning during module unload on unsupported CPUs Loading the microcode driver on an unsupported CPU and subsequently unloading the driver causes WARNING: at fs/sysfs/group.c:138 mc_device_remove+0x5f/0x70 [microcode]() Hardware name: 01972NG sysfs group ffffffffa00013d0 not found for kobject 'cpu0' Modules linked in: snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_intel btusb snd_hda_codec bluetooth thinkpad_acpi rfkill microcode(-) [last unloaded: cfg80211] Pid: 4560, comm: modprobe Not tainted 3.4.0-rc2-00002-g258f742 #5 Call Trace: [] ? warn_slowpath_common+0x7b/0xc0 [] ? warn_slowpath_fmt+0x45/0x50 [] ? sysfs_remove_group+0x34/0x120 [] ? mc_device_remove+0x5f/0x70 [microcode] [] ? subsys_interface_unregister+0x69/0xa0 [] ? mutex_lock+0x16/0x40 [] ? microcode_exit+0x50/0x92 [microcode] [] ? sys_delete_module+0x16d/0x260 [] ? wait_iff_congested+0x45/0x110 [] ? page_fault+0x1f/0x30 [] ? system_call_fastpath+0x16/0x1b on recent kernels. This is due to commit 8a25a2fd126c ("cpu: convert 'cpu' and 'machinecheck' sysdev_class to a regular subsystem") which renders commit 6c53cbfced04 ("x86, microcode: Correct sysdev_add error path") useless. See http://marc.info/?l=linux-kernel&m=133416246406478 Avoid above warning by restoring the old driver behaviour before 6c53cbfced04 ("x86, microcode: Correct sysdev_add error path"). Cc: stable@vger.kernel.org Cc: Tigran Aivazian Signed-off-by: Andreas Herrmann Acked-by: Greg Kroah-Hartman Link: http://lkml.kernel.org/r/20120411163849.GE4794@alberich.amd.com Signed-off-by: Borislav Petkov diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c index 87a0f86..d389e74 100644 --- a/arch/x86/kernel/microcode_core.c +++ b/arch/x86/kernel/microcode_core.c @@ -419,10 +419,8 @@ static int mc_device_add(struct device *dev, struct subsys_interface *sif) if (err) return err; - if (microcode_init_cpu(cpu) == UCODE_ERROR) { - sysfs_remove_group(&dev->kobj, &mc_attr_group); + if (microcode_init_cpu(cpu) == UCODE_ERROR) return -EINVAL; - } return err; } -- cgit v0.10.2 From 283c1f2558ef4a4411fe908364b15b73b6ab44cf Mon Sep 17 00:00:00 2001 From: Andreas Herrmann Date: Thu, 12 Apr 2012 16:51:57 +0200 Subject: x86, microcode: Ensure that module is only loaded on supported AMD CPUs Exit early when there's no support for a particular CPU family. Also, fixup the "no support for this CPU vendor" to be issued only when the driver is attempted to be loaded on an unsupported vendor. Cc: stable@vger.kernel.org Cc: Tigran Aivazian Signed-off-by: Andreas Herrmann Acked-by: Greg Kroah-Hartman Link: http://lkml.kernel.org/r/20120411163849.GE4794@alberich.amd.com [Boris: add a commit msg because Andreas is lazy] Signed-off-by: Borislav Petkov diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c index 73465aa..8a2ce8f 100644 --- a/arch/x86/kernel/microcode_amd.c +++ b/arch/x86/kernel/microcode_amd.c @@ -82,11 +82,6 @@ static int collect_cpu_info_amd(int cpu, struct cpu_signature *csig) { struct cpuinfo_x86 *c = &cpu_data(cpu); - if (c->x86_vendor != X86_VENDOR_AMD || c->x86 < 0x10) { - pr_warning("CPU%d: family %d not supported\n", cpu, c->x86); - return -1; - } - csig->rev = c->microcode; pr_info("CPU%d: patch_level=0x%08x\n", cpu, csig->rev); @@ -380,6 +375,13 @@ static struct microcode_ops microcode_amd_ops = { struct microcode_ops * __init init_amd_microcode(void) { + struct cpuinfo_x86 *c = &cpu_data(0); + + if (c->x86_vendor != X86_VENDOR_AMD || c->x86 < 0x10) { + pr_warning("AMD CPU family 0x%x not supported\n", c->x86); + return NULL; + } + patch = (void *)get_zeroed_page(GFP_KERNEL); if (!patch) return NULL; diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c index d389e74..c9bda6d 100644 --- a/arch/x86/kernel/microcode_core.c +++ b/arch/x86/kernel/microcode_core.c @@ -526,11 +526,11 @@ static int __init microcode_init(void) microcode_ops = init_intel_microcode(); else if (c->x86_vendor == X86_VENDOR_AMD) microcode_ops = init_amd_microcode(); - - if (!microcode_ops) { + else pr_err("no support for this CPU vendor\n"); + + if (!microcode_ops) return -ENODEV; - } microcode_pdev = platform_device_register_simple("microcode", -1, NULL, 0); -- cgit v0.10.2 From 87522a433ba6886b5ccbb497e0a7cb8097def64e Mon Sep 17 00:00:00 2001 From: AceLan Kao Date: Fri, 13 Apr 2012 17:39:57 +0800 Subject: Bluetooth: Add support for Atheros [13d3:3362] Add another vendor specific ID for Atheros AR3012 device. This chip is wrapped by IMC Networks. output of usb-devices: T: Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 5 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=13d3 ProdID=3362 Rev=00.02 S: Manufacturer=Atheros Communications S: Product=Bluetooth USB Host Controller S: SerialNumber=Alaska Day 2006 C: #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb I: If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb Signed-off-by: AceLan Kao Signed-off-by: Johan Hedberg diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c index ae9edca..639a161 100644 --- a/drivers/bluetooth/ath3k.c +++ b/drivers/bluetooth/ath3k.c @@ -75,6 +75,7 @@ static struct usb_device_id ath3k_table[] = { { USB_DEVICE(0x0CF3, 0x311D) }, { USB_DEVICE(0x13d3, 0x3375) }, { USB_DEVICE(0x04CA, 0x3005) }, + { USB_DEVICE(0x13d3, 0x3362) }, /* Atheros AR5BBU12 with sflash firmware */ { USB_DEVICE(0x0489, 0xE02C) }, @@ -94,6 +95,7 @@ static struct usb_device_id ath3k_blist_tbl[] = { { USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, { } /* Terminating entry */ }; diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 9af450a..a497544 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -134,6 +134,7 @@ static struct usb_device_id blacklist_table[] = { { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, /* Atheros AR5BBU12 with sflash firmware */ { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, -- cgit v0.10.2 From d99de7f552fac43e24fd4fb8048d8f21abaea691 Mon Sep 17 00:00:00 2001 From: Fernando Guzman Lugo Date: Fri, 13 Apr 2012 05:08:03 -0600 Subject: ARM: OMAP2+: hwmod: add softreset delay field and OMAP4 data Due to HW limitation, some IPs should not be accessed just after a softreset. Since the current hwmod sequence is accessing the sysconfig register just after the reset, it might lead to OCP bus error in that case. Add a new field in the sysconfig structure to specify a delay in usecs needed after doing a softreset. In the case of the ISS and FDIF modules, the L3 OCP port will be disconnected upon a SW reset. That issue was confirmed with HW simulation and an errata should be available soon. The HW recommendation to avoid that is to wait for 100 OCP clk cycles, before accessing the IP. Considering the worse case (OPP50), the L3 bus will run at 100 MHz, so a 1 usec delay is needed. Add an x2 margin to be safe. Acked-by: Benoit Cousson Signed-off-by: Fernando Guzman Lugo [paul@pwsan.com: dropped FDIF change for now since the hwmod data is not yet upstream; the FDIF change will need to be added later once the FDIF data is merged] Signed-off-by: Paul Walmsley diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 2c27fdb..45f1d9c 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -1422,6 +1422,9 @@ static int _ocp_softreset(struct omap_hwmod *oh) goto dis_opt_clks; _write_sysconfig(v, oh); + if (oh->class->sysc->srst_udelay) + udelay(oh->class->sysc->srst_udelay); + if (oh->class->sysc->sysc_flags & SYSS_HAS_RESET_STATUS) omap_test_timeout((omap_hwmod_read(oh, oh->class->sysc->syss_offs) diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index cc9bd10..6abc757 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -2594,6 +2594,15 @@ static struct omap_hwmod omap44xx_ipu_hwmod = { static struct omap_hwmod_class_sysconfig omap44xx_iss_sysc = { .rev_offs = 0x0000, .sysc_offs = 0x0010, + /* + * ISS needs 100 OCP clk cycles delay after a softreset before + * accessing sysconfig again. + * The lowest frequency at the moment for L3 bus is 100 MHz, so + * 1usec delay is needed. Add an x2 margin to be safe (2 usecs). + * + * TODO: Indicate errata when available. + */ + .srst_udelay = 2, .sysc_flags = (SYSC_HAS_MIDLEMODE | SYSC_HAS_RESET_STATUS | SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET), .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART | diff --git a/arch/arm/plat-omap/include/plat/omap_hwmod.h b/arch/arm/plat-omap/include/plat/omap_hwmod.h index 8070145..3f26db4 100644 --- a/arch/arm/plat-omap/include/plat/omap_hwmod.h +++ b/arch/arm/plat-omap/include/plat/omap_hwmod.h @@ -305,6 +305,7 @@ struct omap_hwmod_sysc_fields { * @rev_offs: IP block revision register offset (from module base addr) * @sysc_offs: OCP_SYSCONFIG register offset (from module base addr) * @syss_offs: OCP_SYSSTATUS register offset (from module base addr) + * @srst_udelay: Delay needed after doing a softreset in usecs * @idlemodes: One or more of {SIDLE,MSTANDBY}_{OFF,FORCE,SMART} * @sysc_flags: SYS{C,S}_HAS* flags indicating SYSCONFIG bits supported * @clockact: the default value of the module CLOCKACTIVITY bits @@ -330,9 +331,10 @@ struct omap_hwmod_class_sysconfig { u16 sysc_offs; u16 syss_offs; u16 sysc_flags; + struct omap_hwmod_sysc_fields *sysc_fields; + u8 srst_udelay; u8 idlemodes; u8 clockact; - struct omap_hwmod_sysc_fields *sysc_fields; }; /** -- cgit v0.10.2 From 3c55c1baffa5f719eb2ae9729088bc867f972f53 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Fri, 13 Apr 2012 05:08:43 -0600 Subject: ARM: OMAP2+: hwmod: Revert "ARM: OMAP2+: hwmod: Make omap_hwmod_softreset wait for reset status" This reverts commit f9a2f9c3fa76eec55928e8e06f3094c8f01df7cb. This commit caused a regression in the I2C hwmod reset on OMAP2/3/4, logging messages similar to these during boot: [ 0.200378] omap_hwmod: i2c1: softreset failed (waited 10000 usec) [ 0.222076] omap_hwmod: i2c2: softreset failed (waited 10000 usec) While the original patch was intended to fix some reset-related timing issues, it's believed that these problems were actually fixed by commit 2800852a079504f35f88e44faf5c9c96318c0cca ("ARM: OMAP2+: hwmod: Restore sysc after a reset"): http://marc.info/?l=linux-arm-kernel&m=133410322617245&w=2 Cc: Rajendra Nayak Signed-off-by: Paul Walmsley diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 45f1d9c..7144ae6 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -1906,10 +1906,20 @@ void omap_hwmod_write(u32 v, struct omap_hwmod *oh, u16 reg_offs) */ int omap_hwmod_softreset(struct omap_hwmod *oh) { - if (!oh) + u32 v; + int ret; + + if (!oh || !(oh->_sysc_cache)) return -EINVAL; - return _ocp_softreset(oh); + v = oh->_sysc_cache; + ret = _set_softreset(oh, &v); + if (ret) + goto error; + _write_sysconfig(v, oh); + +error: + return ret; } /** -- cgit v0.10.2 From 1f5e6247ca99287bac87aff4971a7eee9c2b223a Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Fri, 13 Apr 2012 13:31:55 +0530 Subject: ARM: OMAP2/3: VENC hwmods: Remove OCPIF_SWSUP_IDLE flag from VENC slave interface The clocks for all DSS slave interfaces were recently changed to "dss_ick" on OMAP2 and OMAP3, this clock can be autoidled by PRCM. The VENC interface previously had "dss_54m_fck" as it's clock which couldn't be autoidled, and hence the OCPIF_SWSUP_IDLE flag was needed. Remove the OCPIF_SWSUP_IDLE flag from VENC interfaces as it's clock is now "dss_ick". This allows the PRCM hardware to autoidle the VENC interface clocks when they are not active, rather than relying on the software to do it, which can keep the interface clocks active unnecessarily. Signed-off-by: Archit Taneja [paul@pwsan.com: add a short description of the fix to the commit log] Signed-off-by: Paul Walmsley diff --git a/arch/arm/mach-omap2/omap_hwmod_2420_data.c b/arch/arm/mach-omap2/omap_hwmod_2420_data.c index a5409ce..a6bde34 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2420_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2420_data.c @@ -1000,7 +1000,6 @@ static struct omap_hwmod_ocp_if omap2420_l4_core__dss_venc = { .flags = OMAP_FIREWALL_L4, } }, - .flags = OCPIF_SWSUP_IDLE, .user = OCP_USER_MPU | OCP_USER_SDMA, }; diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c index c4f56cb..04a3885 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2430_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2430_data.c @@ -1049,7 +1049,6 @@ static struct omap_hwmod_ocp_if omap2430_l4_core__dss_venc = { .slave = &omap2430_dss_venc_hwmod, .clk = "dss_ick", .addr = omap2_dss_venc_addrs, - .flags = OCPIF_SWSUP_IDLE, .user = OCP_USER_MPU | OCP_USER_SDMA, }; diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c index 34b9766d..db86ce9 100644 --- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c @@ -1676,7 +1676,6 @@ static struct omap_hwmod_ocp_if omap3xxx_l4_core__dss_venc = { .flags = OMAP_FIREWALL_L4, } }, - .flags = OCPIF_SWSUP_IDLE, .user = OCP_USER_MPU | OCP_USER_SDMA, }; -- cgit v0.10.2 From 1e45860f541497d73162305d48b638d9b87e1ae3 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 13 Apr 2012 13:11:50 +0100 Subject: ARM: 7366/3: amba: Remove AMBA level regulator support The AMBA bus regulator support is being used to model on/off switches for power domains which isn't terribly idiomatic for modern kernels with the generic power domain code and creates integration problems on platforms which don't use regulators for their power domains as it's hard to tell the difference between a regulator that is needed but failed to be provided and one that isn't supposed to be there (though DT does make that easier). Platforms that wish to use the regulator API to manage their power domains can indirect via the power domain interface. This feature is only used with the vape supply of the db8500 PRCMU driver which supplies the UARTs and MMC controllers, none of which have support for managing vcore at runtime in mainline (only pl022 SPI controller does). Update that supply to have an always_on constraint until the power domain support for the system is updated so that it is enabled for these users, this is likely to have no impact on practical systems as probably at least one of these devices will be active and cause AMBA to hold the supply on anyway. Signed-off-by: Mark Brown Acked-by: Linus Walleij Tested-by: Shawn Guo Signed-off-by: Russell King diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c index 01c2cf4..cc27322 100644 --- a/drivers/amba/bus.c +++ b/drivers/amba/bus.c @@ -247,8 +247,7 @@ static int amba_pm_restore(struct device *dev) /* * Hooks to provide runtime PM of the pclk (bus clock). It is safe to * enable/disable the bus clock at runtime PM suspend/resume as this - * does not result in loss of context. However, disabling vcore power - * would do, so we leave that to the driver. + * does not result in loss of context. */ static int amba_pm_runtime_suspend(struct device *dev) { @@ -354,39 +353,6 @@ static void amba_put_disable_pclk(struct amba_device *pcdev) clk_put(pclk); } -static int amba_get_enable_vcore(struct amba_device *pcdev) -{ - struct regulator *vcore = regulator_get(&pcdev->dev, "vcore"); - int ret; - - pcdev->vcore = vcore; - - if (IS_ERR(vcore)) { - /* It is OK not to supply a vcore regulator */ - if (PTR_ERR(vcore) == -ENODEV) - return 0; - return PTR_ERR(vcore); - } - - ret = regulator_enable(vcore); - if (ret) { - regulator_put(vcore); - pcdev->vcore = ERR_PTR(-ENODEV); - } - - return ret; -} - -static void amba_put_disable_vcore(struct amba_device *pcdev) -{ - struct regulator *vcore = pcdev->vcore; - - if (!IS_ERR(vcore)) { - regulator_disable(vcore); - regulator_put(vcore); - } -} - /* * These are the device model conversion veneers; they convert the * device model structures to our more specific structures. @@ -399,10 +365,6 @@ static int amba_probe(struct device *dev) int ret; do { - ret = amba_get_enable_vcore(pcdev); - if (ret) - break; - ret = amba_get_enable_pclk(pcdev); if (ret) break; @@ -420,7 +382,6 @@ static int amba_probe(struct device *dev) pm_runtime_put_noidle(dev); amba_put_disable_pclk(pcdev); - amba_put_disable_vcore(pcdev); } while (0); return ret; @@ -442,7 +403,6 @@ static int amba_remove(struct device *dev) pm_runtime_put_noidle(dev); amba_put_disable_pclk(pcdev); - amba_put_disable_vcore(pcdev); return ret; } diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c index ebc1e86..5be3248 100644 --- a/drivers/mfd/db8500-prcmu.c +++ b/drivers/mfd/db8500-prcmu.c @@ -2788,6 +2788,7 @@ static struct regulator_init_data db8500_regulators[DB8500_NUM_REGULATORS] = { .constraints = { .name = "db8500-vape", .valid_ops_mask = REGULATOR_CHANGE_STATUS, + .always_on = true, }, .consumer_supplies = db8500_vape_consumers, .num_consumer_supplies = ARRAY_SIZE(db8500_vape_consumers), diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c index 96f0da6..09c925a 100644 --- a/drivers/spi/spi-pl022.c +++ b/drivers/spi/spi-pl022.c @@ -2195,7 +2195,6 @@ static int pl022_runtime_suspend(struct device *dev) struct pl022 *pl022 = dev_get_drvdata(dev); clk_disable(pl022->clk); - amba_vcore_disable(pl022->adev); return 0; } @@ -2204,7 +2203,6 @@ static int pl022_runtime_resume(struct device *dev) { struct pl022 *pl022 = dev_get_drvdata(dev); - amba_vcore_enable(pl022->adev); clk_enable(pl022->clk); return 0; diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h index 7847e19..8d54f79 100644 --- a/include/linux/amba/bus.h +++ b/include/linux/amba/bus.h @@ -30,7 +30,6 @@ struct amba_device { struct device dev; struct resource res; struct clk *pclk; - struct regulator *vcore; u64 dma_mask; unsigned int periphid; unsigned int irq[AMBA_NR_IRQS]; @@ -75,12 +74,6 @@ void amba_release_regions(struct amba_device *); #define amba_pclk_disable(d) \ do { if (!IS_ERR((d)->pclk)) clk_disable((d)->pclk); } while (0) -#define amba_vcore_enable(d) \ - (IS_ERR((d)->vcore) ? 0 : regulator_enable((d)->vcore)) - -#define amba_vcore_disable(d) \ - do { if (!IS_ERR((d)->vcore)) regulator_disable((d)->vcore); } while (0) - /* Some drivers don't use the struct amba_device */ #define AMBA_CONFIG_BITS(a) (((a) >> 24) & 0xff) #define AMBA_REV_BITS(a) (((a) >> 20) & 0x0f) -- cgit v0.10.2 From 9c5fd9e85f574d9d0361b2b878f55732290afe5b Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Wed, 11 Apr 2012 14:52:55 +0100 Subject: ARM: 7379/1: DT: fix atags_to_fdt() second call site atags_to_fdt() returns 1 when it fails to find a valid FDT signature. The CONFIG_ARM_ATAG_DTB_COMPAT code is supposed to retry with another location, but only does so when the initial call doesn't fail. Fix this by using the correct condition in the assembly code. Acked-by: Nicolas Pitre Signed-off-by: Marc Zyngier Cc: stable@vger.kernel.org Signed-off-by: Russell King diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S index 5f6045f..dc7e8ce 100644 --- a/arch/arm/boot/compressed/head.S +++ b/arch/arm/boot/compressed/head.S @@ -273,7 +273,7 @@ restart: adr r0, LC0 add r0, r0, #0x100 mov r1, r6 sub r2, sp, r6 - blne atags_to_fdt + bleq atags_to_fdt ldmfd sp!, {r0-r3, ip, lr} sub sp, sp, #0x10000 -- cgit v0.10.2 From a106b21a352517b57af1c3581e15b8787ffe4e98 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Wed, 11 Apr 2012 14:52:56 +0100 Subject: ARM: 7380/1: DT: do not add a zero-sized memory property Some bootloaders are broken enough to expose an ATAG_MEM with a null size. Converting such tag to a memory node leads to an unbootable system. Skip over zero sized ATAG_MEM to avoid this situation. Acked-by: Nicolas Pitre Signed-off-by: Marc Zyngier Signed-off-by: Russell King diff --git a/arch/arm/boot/compressed/atags_to_fdt.c b/arch/arm/boot/compressed/atags_to_fdt.c index 6ce11c4..797f04b 100644 --- a/arch/arm/boot/compressed/atags_to_fdt.c +++ b/arch/arm/boot/compressed/atags_to_fdt.c @@ -77,6 +77,8 @@ int atags_to_fdt(void *atag_list, void *fdt, int total_space) } else if (atag->hdr.tag == ATAG_MEM) { if (memcount >= sizeof(mem_reg_property)/4) continue; + if (!atag->u.mem.size) + continue; mem_reg_property[memcount++] = cpu_to_fdt32(atag->u.mem.start); mem_reg_property[memcount++] = cpu_to_fdt32(atag->u.mem.size); } else if (atag->hdr.tag == ATAG_INITRD2) { -- cgit v0.10.2 From 9b7333a9c1c22409f685ff6bb6a9e3638e7ff06f Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Thu, 12 Apr 2012 17:12:37 +0100 Subject: ARM: 7381/1: nommu: fix typo in mm/Kconfig The description for the CPU_HIGH_VECTOR Kconfig option for nommu builds doesn't make any sense. This patch fixes up the trivial grammatical error. Signed-off-by: Will Deacon Signed-off-by: Russell King diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 7edef91..7c8a7d8 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -723,7 +723,7 @@ config CPU_HIGH_VECTOR bool "Select the High exception vector" help Say Y here to select high exception vector(0xFFFF0000~). - The exception vector can be vary depending on the platform + The exception vector can vary depending on the platform design in nommu mode. If your platform needs to select high exception vector, say Y. Otherwise or if you are unsure, say N, and the low exception -- cgit v0.10.2 From 6b8e5c912f4294611351aba151324764ebbefa1b Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Thu, 12 Apr 2012 17:16:01 +0100 Subject: ARM: 7383/1: nommu: populate vectors page from paging_init Commit 94e5a85b ("ARM: earlier initialization of vectors page") made it the responsibility of paging_init to initialise the vectors page. This patch adds a call to early_trap_init for the !CONFIG_MMU case, placing the vectors at CONFIG_VECTORS_BASE. Cc: Jonathan Austin Signed-off-by: Will Deacon Signed-off-by: Russell King diff --git a/arch/arm/mm/nommu.c b/arch/arm/mm/nommu.c index 6486d2f..d51225f 100644 --- a/arch/arm/mm/nommu.c +++ b/arch/arm/mm/nommu.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include "mm.h" @@ -39,6 +40,7 @@ void __init sanity_check_meminfo(void) */ void __init paging_init(struct machine_desc *mdesc) { + early_trap_init((void *)CONFIG_VECTORS_BASE); bootmem_init(); } -- cgit v0.10.2 From 96f6f98501196d46ce52c2697dd758d9300c63f5 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 12 Apr 2012 23:47:00 -0400 Subject: nfsd: fix b0rken error value for setattr on read-only mount ..._want_write() returns -EROFS on failure, _not_ an NFS error value. Signed-off-by: Al Viro diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 2ed14df..694d526 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -841,6 +841,7 @@ nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_setattr *setattr) { __be32 status = nfs_ok; + int err; if (setattr->sa_iattr.ia_valid & ATTR_SIZE) { nfs4_lock_state(); @@ -852,9 +853,9 @@ nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, return status; } } - status = fh_want_write(&cstate->current_fh); - if (status) - return status; + err = fh_want_write(&cstate->current_fh); + if (err) + return nfserrno(err); status = nfs_ok; status = check_attr_support(rqstp, cstate, setattr->sa_bmval, -- cgit v0.10.2 From 04da6e9d63427b2d0fd04766712200c250b3278f Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 13 Apr 2012 00:00:04 -0400 Subject: nfsd: fix error values returned by nfsd4_lockt() when nfsd_open() fails nfsd_open() already returns an NFS error value; only vfs_test_lock() result needs to be fed through nfserrno(). Broken by commit 55ef12 (nfsd: Ensure nfsv4 calls the underlying filesystem on LOCKT) three years ago... Signed-off-by: Al Viro diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 1841f8b..7f71c69 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -4211,16 +4211,14 @@ out: * vfs_test_lock. (Arguably perhaps test_lock should be done with an * inode operation.) */ -static int nfsd_test_lock(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file_lock *lock) +static __be32 nfsd_test_lock(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file_lock *lock) { struct file *file; - int err; - - err = nfsd_open(rqstp, fhp, S_IFREG, NFSD_MAY_READ, &file); - if (err) - return err; - err = vfs_test_lock(file, lock); - nfsd_close(file); + __be32 err = nfsd_open(rqstp, fhp, S_IFREG, NFSD_MAY_READ, &file); + if (!err) { + err = nfserrno(vfs_test_lock(file, lock)); + nfsd_close(file); + } return err; } @@ -4234,7 +4232,6 @@ nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct inode *inode; struct file_lock file_lock; struct nfs4_lockowner *lo; - int error; __be32 status; if (locks_in_grace()) @@ -4280,12 +4277,10 @@ nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, nfs4_transform_lock_offset(&file_lock); - status = nfs_ok; - error = nfsd_test_lock(rqstp, &cstate->current_fh, &file_lock); - if (error) { - status = nfserrno(error); + status = nfsd_test_lock(rqstp, &cstate->current_fh, &file_lock); + if (status) goto out; - } + if (file_lock.fl_type != F_UNLCK) { status = nfserr_denied; nfs4_set_lock_denied(&file_lock, &lockt->lt_denied); -- cgit v0.10.2 From 02f5fde5df0ea930e70f93763dd48beff182b208 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 13 Apr 2012 00:10:34 -0400 Subject: nfsd: fix endianness breakage in TEST_STATEID handling ->ts_id_status gets nfs errno, i.e. it's already big-endian; no need to apply htonl() to it. Broken by commit 174568 (NFSD: Added TEST_STATEID operation) last year... Signed-off-by: Al Viro diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index bcd8904..07a99b6 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -3410,7 +3410,7 @@ nfsd4_encode_test_stateid(struct nfsd4_compoundres *resp, int nfserr, *p++ = htonl(test_stateid->ts_num_ids); list_for_each_entry_safe(stateid, next, &test_stateid->ts_stateid_list, ts_id_list) { - *p++ = htonl(stateid->ts_id_status); + *p++ = stateid->ts_id_status; } ADJUST_ARGS(); -- cgit v0.10.2 From afcf6792afd66209161495f691e19d4fc5460a93 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 13 Apr 2012 00:15:37 -0400 Subject: nfsd: fix error value on allocation failure in nfsd4_decode_test_stateid() PTR_ERR(NULL) is going to be 0... Signed-off-by: Al Viro diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 07a99b6..74c00bc 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -1392,7 +1392,7 @@ nfsd4_decode_test_stateid(struct nfsd4_compoundargs *argp, struct nfsd4_test_sta for (i = 0; i < test_stateid->ts_num_ids; i++) { stateid = kmalloc(sizeof(struct nfsd4_test_stateid_id), GFP_KERNEL); if (!stateid) { - status = PTR_ERR(stateid); + status = nfserrno(-ENOMEM); goto out; } -- cgit v0.10.2 From efe39651f08813180f37dc508d950fc7d92b29a8 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 13 Apr 2012 00:32:14 -0400 Subject: nfsd: fix compose_entry_fh() failure exits Restore the original logics ("fail on mountpoints, negatives and in case of fh_compose() failures"). Since commit 8177e (nfsd: clean up readdirplus encoding) that got broken - rv = fh_compose(fhp, exp, dchild, &cd->fh); if (rv) goto out; if (!dchild->d_inode) goto out; rv = 0; out: is equivalent to rv = fh_compose(fhp, exp, dchild, &cd->fh); out: and the second check has no effect whatsoever... Signed-off-by: Al Viro diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c index 08c6e36..43f46cd 100644 --- a/fs/nfsd/nfs3xdr.c +++ b/fs/nfsd/nfs3xdr.c @@ -803,13 +803,13 @@ encode_entry_baggage(struct nfsd3_readdirres *cd, __be32 *p, const char *name, return p; } -static int +static __be32 compose_entry_fh(struct nfsd3_readdirres *cd, struct svc_fh *fhp, const char *name, int namlen) { struct svc_export *exp; struct dentry *dparent, *dchild; - int rv = 0; + __be32 rv = nfserr_noent; dparent = cd->fh.fh_dentry; exp = cd->fh.fh_export; @@ -817,26 +817,20 @@ compose_entry_fh(struct nfsd3_readdirres *cd, struct svc_fh *fhp, if (isdotent(name, namlen)) { if (namlen == 2) { dchild = dget_parent(dparent); - if (dchild == dparent) { - /* filesystem root - cannot return filehandle for ".." */ - dput(dchild); - return -ENOENT; - } + /* filesystem root - cannot return filehandle for ".." */ + if (dchild == dparent) + goto out; } else dchild = dget(dparent); } else dchild = lookup_one_len(name, dparent, namlen); if (IS_ERR(dchild)) - return -ENOENT; - rv = -ENOENT; + return rv; if (d_mountpoint(dchild)) goto out; - rv = fh_compose(fhp, exp, dchild, &cd->fh); - if (rv) - goto out; if (!dchild->d_inode) goto out; - rv = 0; + rv = fh_compose(fhp, exp, dchild, &cd->fh); out: dput(dchild); return rv; @@ -845,7 +839,7 @@ out: static __be32 *encode_entryplus_baggage(struct nfsd3_readdirres *cd, __be32 *p, const char *name, int namlen) { struct svc_fh fh; - int err; + __be32 err; fh_init(&fh, NFS3_FHSIZE); err = compose_entry_fh(cd, &fh, name, namlen); -- cgit v0.10.2 From af1584f570b19b0285e4402a0b54731495d31784 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 12 Apr 2012 20:32:25 -0400 Subject: ext4: fix endianness breakage in ext4_split_extent_at() ->ee_len is __le16, so assigning cpu_to_le32() to it is going to do Bad Things(tm) on big-endian hosts... Signed-off-by: Al Viro diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 1421938..1d41838 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -2882,7 +2882,7 @@ static int ext4_split_extent_at(handle_t *handle, if (err) goto fix_extent_len; /* update the extent length and mark as initialized */ - ex->ee_len = cpu_to_le32(ee_len); + ex->ee_len = cpu_to_le16(ee_len); ext4_ext_try_to_merge(inode, path, ex); err = ext4_ext_dirty(handle, inode, path + depth); goto out; -- cgit v0.10.2 From 7d3d43dab4e978d8d9ad1acf8af15c9b1c4b0f0f Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Fri, 6 Apr 2012 15:33:35 +0000 Subject: net: In unregister_netdevice_notifier unregister the netdevices. We already synthesize events in register_netdevice_notifier and synthesizing events in unregister_netdevice_notifier allows to us remove the need for special case cleanup code. This change should be safe as it adds no new cases for existing callers of unregiser_netdevice_notifier to handle. Signed-off-by: Eric W. Biederman Signed-off-by: David S. Miller diff --git a/net/core/dev.c b/net/core/dev.c index c25d453..9bb8f87 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1409,14 +1409,34 @@ EXPORT_SYMBOL(register_netdevice_notifier); * register_netdevice_notifier(). The notifier is unlinked into the * kernel structures and may then be reused. A negative errno code * is returned on a failure. + * + * After unregistering unregister and down device events are synthesized + * for all devices on the device list to the removed notifier to remove + * the need for special case cleanup code. */ int unregister_netdevice_notifier(struct notifier_block *nb) { + struct net_device *dev; + struct net *net; int err; rtnl_lock(); err = raw_notifier_chain_unregister(&netdev_chain, nb); + if (err) + goto unlock; + + for_each_net(net) { + for_each_netdev(net, dev) { + if (dev->flags & IFF_UP) { + nb->notifier_call(nb, NETDEV_GOING_DOWN, dev); + nb->notifier_call(nb, NETDEV_DOWN, dev); + } + nb->notifier_call(nb, NETDEV_UNREGISTER, dev); + nb->notifier_call(nb, NETDEV_UNREGISTER_BATCH, dev); + } + } +unlock: rtnl_unlock(); return err; } -- cgit v0.10.2 From 03478756b1b9298686ca9c8793e484ae39eb4649 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Fri, 6 Apr 2012 15:35:39 +0000 Subject: phonet: Sort out initiailziation and cleanup code. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Recently an oops was reported in phonet if there was a failure during network namespace creation. [ 163.733755] ------------[ cut here ]------------ [ 163.734501] kernel BUG at include/net/netns/generic.h:45! [ 163.734501] invalid opcode: 0000 [#1] PREEMPT SMP [ 163.734501] CPU 2 [ 163.734501] Pid: 19145, comm: trinity Tainted: G W 3.4.0-rc1-next-20120405-sasha-dirty #57 [ 163.734501] RIP: 0010:[] [] phonet_pernet+0x182/0x1a0 [ 163.734501] RSP: 0018:ffff8800674d5ca8 EFLAGS: 00010246 [ 163.734501] RAX: 000000003fffffff RBX: 0000000000000000 RCX: ffff8800678c88d8 [ 163.734501] RDX: 00000000003f4000 RSI: ffff8800678c8910 RDI: 0000000000000282 [ 163.734501] RBP: ffff8800674d5cc8 R08: 0000000000000000 R09: 0000000000000000 [ 163.734501] R10: 0000000000000000 R11: 0000000000000000 R12: ffff880068bec920 [ 163.734501] R13: ffffffff836b90c0 R14: 0000000000000000 R15: 0000000000000000 [ 163.734501] FS: 00007f055e8de700(0000) GS:ffff88007d000000(0000) knlGS:0000000000000000 [ 163.734501] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 163.734501] CR2: 00007f055e6bb518 CR3: 0000000070c16000 CR4: 00000000000406e0 [ 163.734501] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 163.734501] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 163.734501] Process trinity (pid: 19145, threadinfo ffff8800674d4000, task ffff8800678c8000) [ 163.734501] Stack: [ 163.734501] ffffffff824d5f00 ffffffff810e2ec1 ffff880067ae0000 00000000ffffffd4 [ 163.734501] ffff8800674d5cf8 ffffffff824d667a ffff880067ae0000 00000000ffffffd4 [ 163.734501] ffffffff836b90c0 0000000000000000 ffff8800674d5d18 ffffffff824d707d [ 163.734501] Call Trace: [ 163.734501] [] ? phonet_pernet+0x20/0x1a0 [ 163.734501] [] ? get_parent_ip+0x11/0x50 [ 163.734501] [] phonet_device_destroy+0x1a/0x100 [ 163.734501] [] phonet_device_notify+0x3d/0x50 [ 163.734501] [] notifier_call_chain+0xee/0x130 [ 163.734501] [] raw_notifier_call_chain+0x11/0x20 [ 163.734501] [] call_netdevice_notifiers+0x52/0x60 [ 163.734501] [] rollback_registered_many+0x185/0x270 [ 163.734501] [] unregister_netdevice_many+0x14/0x60 [ 163.734501] [] ipip_exit_net+0x1b3/0x1d0 [ 163.734501] [] ? ipip_rcv+0x420/0x420 [ 163.734501] [] ops_exit_list+0x35/0x70 [ 163.734501] [] setup_net+0xab/0xe0 [ 163.734501] [] copy_net_ns+0x76/0x100 [ 163.734501] [] create_new_namespaces+0xfb/0x190 [ 163.734501] [] unshare_nsproxy_namespaces+0x61/0x80 [ 163.734501] [] sys_unshare+0xff/0x290 [ 163.734501] [] ? trace_hardirqs_on_thunk+0x3a/0x3f [ 163.734501] [] system_call_fastpath+0x16/0x1b [ 163.734501] Code: e0 c3 fe 66 0f 1f 44 00 00 48 c7 c2 40 60 4d 82 be 01 00 00 00 48 c7 c7 80 d1 23 83 e8 48 2a c4 fe e8 73 06 c8 fe 48 85 db 75 0e <0f> 0b 0f 1f 40 00 eb fe 66 0f 1f 44 00 00 48 83 c4 10 48 89 d8 [ 163.734501] RIP [] phonet_pernet+0x182/0x1a0 [ 163.734501] RSP [ 163.861289] ---[ end trace fb5615826c548066 ]--- After investigation it turns out there were two issues. 1) Phonet was not implementing network devices but was using register_pernet_device instead of register_pernet_subsys. This was allowing there to be cases when phonenet was not initialized and the phonet net_generic was not set for a network namespace when network device events were being reported on the netdevice_notifier for a network namespace leading to the oops above. 2) phonet_exit_net was implementing a confusing and special case of handling all network devices from going away that it was hard to see was correct, and would only occur when the phonet module was removed. Now that unregister_netdevice_notifier has been modified to synthesize unregistration events for the network devices that are extant when called this confusing special case in phonet_exit_net is no longer needed. Signed-off-by: Eric W. Biederman Acked-by: Rémi Denis-Courmont Signed-off-by: David S. Miller diff --git a/net/phonet/pn_dev.c b/net/phonet/pn_dev.c index 9b9a85e..bf5cf69 100644 --- a/net/phonet/pn_dev.c +++ b/net/phonet/pn_dev.c @@ -331,23 +331,6 @@ static int __net_init phonet_init_net(struct net *net) static void __net_exit phonet_exit_net(struct net *net) { - struct phonet_net *pnn = phonet_pernet(net); - struct net_device *dev; - unsigned i; - - rtnl_lock(); - for_each_netdev(net, dev) - phonet_device_destroy(dev); - - for (i = 0; i < 64; i++) { - dev = pnn->routes.table[i]; - if (dev) { - rtm_phonet_notify(RTM_DELROUTE, dev, i); - dev_put(dev); - } - } - rtnl_unlock(); - proc_net_remove(net, "phonet"); } @@ -361,7 +344,7 @@ static struct pernet_operations phonet_net_ops = { /* Initialize Phonet devices list */ int __init phonet_device_init(void) { - int err = register_pernet_device(&phonet_net_ops); + int err = register_pernet_subsys(&phonet_net_ops); if (err) return err; @@ -377,7 +360,7 @@ void phonet_device_exit(void) { rtnl_unregister_all(PF_PHONET); unregister_netdevice_notifier(&phonet_device_notifier); - unregister_pernet_device(&phonet_net_ops); + unregister_pernet_subsys(&phonet_net_ops); proc_net_remove(&init_net, "pnresource"); } -- cgit v0.10.2 From 89eb06f11c314c2ab4ec59039715dc021933a7a0 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sun, 8 Apr 2012 22:41:10 +0000 Subject: net/key/af_key.c: add missing kfree_skb At the point of this error-handling code, alloc_skb has succeded, so free the resulting skb by jumping to the err label. Signed-off-by: Julia Lawall Signed-off-by: David S. Miller diff --git a/net/key/af_key.c b/net/key/af_key.c index 11dbb22..7e5d927 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -3480,7 +3480,7 @@ static int pfkey_send_migrate(const struct xfrm_selector *sel, u8 dir, u8 type, /* Addresses to be used by KM for negotiation, if ext is available */ if (k != NULL && (set_sadb_kmaddress(skb, k) < 0)) - return -EINVAL; + goto err; /* selector src */ set_sadb_address(skb, sasize_sel, SADB_EXT_ADDRESS_SRC, sel); -- cgit v0.10.2 From 31304165ffb888483e0f7c805876f25f493a3049 Mon Sep 17 00:00:00 2001 From: Torsten Kaiser Date: Mon, 9 Apr 2012 05:14:15 +0000 Subject: net: Fix misplaced parenthesis in virtio_net.c Commit 2e57b79ccef1ff1422fdf45a9b28fe60f8f084f7 misplaced its parenthesis and now tx_fifo_errors will only be incremented if an ENOMEM error is not written to the syslog. Correct the parenthesis and indentation to the original goal of counting all non ENOMEM errors and ratelimiting only the messages. Signed-of-by: Torsten Kaiser Signed-off-by: David S. Miller diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 4de2760..af8acc8 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -626,16 +626,15 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev) /* This can happen with OOM and indirect buffers. */ if (unlikely(capacity < 0)) { if (likely(capacity == -ENOMEM)) { - if (net_ratelimit()) { + if (net_ratelimit()) dev_warn(&dev->dev, "TX queue failure: out of memory\n"); - } else { + } else { dev->stats.tx_fifo_errors++; if (net_ratelimit()) dev_warn(&dev->dev, "Unexpected TX queue failure: %d\n", capacity); - } } dev->stats.tx_dropped++; kfree_skb(skb); -- cgit v0.10.2 From d1f224ae186b834af647661ffaf403a817c050ce Mon Sep 17 00:00:00 2001 From: James Chapman Date: Tue, 10 Apr 2012 00:10:42 +0000 Subject: l2tp: fix refcount leak in l2tp_ip sockets The l2tp_ip socket close handler does not update the module refcount correctly which prevents module unload after the first bind() call on an L2TPv3 IP encapulation socket. Signed-off-by: James Chapman Signed-off-by: David S. Miller diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c index 55670ec..b56be14 100644 --- a/net/l2tp/l2tp_ip.c +++ b/net/l2tp/l2tp_ip.c @@ -232,7 +232,7 @@ static void l2tp_ip_close(struct sock *sk, long timeout) { write_lock_bh(&l2tp_ip_lock); hlist_del_init(&sk->sk_bind_node); - hlist_del_init(&sk->sk_node); + sk_del_node_init(sk); write_unlock_bh(&l2tp_ip_lock); sk_common_release(sk); } -- cgit v0.10.2 From c9be48dc8bb22f1f6e6ff1560b2b28e925a0b815 Mon Sep 17 00:00:00 2001 From: James Chapman Date: Tue, 10 Apr 2012 00:10:43 +0000 Subject: l2tp: don't overwrite source address in l2tp_ip_bind() Applications using L2TP/IP sockets want to be able to bind() an L2TP/IP socket to set the local tunnel id while leaving the auto-assigned source address alone. So if no source address is supplied, don't overwrite the address already stored in the socket. Signed-off-by: James Chapman Signed-off-by: David S. Miller diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c index b56be14..585d93e 100644 --- a/net/l2tp/l2tp_ip.c +++ b/net/l2tp/l2tp_ip.c @@ -271,7 +271,8 @@ static int l2tp_ip_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len) chk_addr_ret != RTN_MULTICAST && chk_addr_ret != RTN_BROADCAST) goto out; - inet->inet_rcv_saddr = inet->inet_saddr = addr->l2tp_addr.s_addr; + if (addr->l2tp_addr.s_addr) + inet->inet_rcv_saddr = inet->inet_saddr = addr->l2tp_addr.s_addr; if (chk_addr_ret == RTN_MULTICAST || chk_addr_ret == RTN_BROADCAST) inet->inet_saddr = 0; /* Use device */ sk_dst_reset(sk); -- cgit v0.10.2 From 5c699fb7d88d360023f3b3f5291cbf5b59883a1b Mon Sep 17 00:00:00 2001 From: Tomasz Gregorek Date: Thu, 12 Apr 2012 08:18:07 +0000 Subject: caif: Fix memory leakage in the chnl_net.c. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Added kfree_skb() calls in the chnk_net.c file on the error paths. Signed-off-by: Sjur Brændeland Signed-off-by: David S. Miller diff --git a/net/caif/chnl_net.c b/net/caif/chnl_net.c index 20618dd..d09340e 100644 --- a/net/caif/chnl_net.c +++ b/net/caif/chnl_net.c @@ -103,6 +103,7 @@ static int chnl_recv_cb(struct cflayer *layr, struct cfpkt *pkt) skb->protocol = htons(ETH_P_IPV6); break; default: + kfree_skb(skb); priv->netdev->stats.rx_errors++; return -EINVAL; } @@ -220,14 +221,16 @@ static int chnl_net_start_xmit(struct sk_buff *skb, struct net_device *dev) if (skb->len > priv->netdev->mtu) { pr_warn("Size of skb exceeded MTU\n"); + kfree_skb(skb); dev->stats.tx_errors++; - return -ENOSPC; + return NETDEV_TX_OK; } if (!priv->flowenabled) { pr_debug("dropping packets flow off\n"); + kfree_skb(skb); dev->stats.tx_dropped++; - return NETDEV_TX_BUSY; + return NETDEV_TX_OK; } if (priv->conn_req.protocol == CAIFPROTO_DATAGRAM_LOOP) @@ -242,7 +245,7 @@ static int chnl_net_start_xmit(struct sk_buff *skb, struct net_device *dev) result = priv->chnl.dn->transmit(priv->chnl.dn, pkt); if (result) { dev->stats.tx_dropped++; - return result; + return NETDEV_TX_OK; } /* Update statistics. */ -- cgit v0.10.2 From 5f614e6b7005685b3e34da0742f79389c858c7e1 Mon Sep 17 00:00:00 2001 From: "sjur.brandeland@stericsson.com" Date: Thu, 12 Apr 2012 08:18:08 +0000 Subject: caif-hsi: Free flip_buffer at shutdown MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix memory leak of RX flip-buffer. Signed-off-by: Sjur Brændeland Signed-off-by: David S. Miller diff --git a/drivers/net/caif/caif_hsi.c b/drivers/net/caif/caif_hsi.c index 9a66e2a..d0d9a6f 100644 --- a/drivers/net/caif/caif_hsi.c +++ b/drivers/net/caif/caif_hsi.c @@ -1210,7 +1210,7 @@ int cfhsi_probe(struct platform_device *pdev) static void cfhsi_shutdown(struct cfhsi *cfhsi) { - u8 *tx_buf, *rx_buf; + u8 *tx_buf, *rx_buf, *flip_buf; /* Stop TXing */ netif_tx_stop_all_queues(cfhsi->ndev); @@ -1234,7 +1234,7 @@ static void cfhsi_shutdown(struct cfhsi *cfhsi) /* Store bufferes: will be freed later. */ tx_buf = cfhsi->tx_buf; rx_buf = cfhsi->rx_buf; - + flip_buf = cfhsi->rx_flip_buf; /* Flush transmit queues. */ cfhsi_abort_tx(cfhsi); @@ -1247,6 +1247,7 @@ static void cfhsi_shutdown(struct cfhsi *cfhsi) /* Free buffers. */ kfree(tx_buf); kfree(rx_buf); + kfree(flip_buf); } int cfhsi_remove(struct platform_device *pdev) -- cgit v0.10.2 From d62f8dbb5b7771910f7c4657345df8ac93acb832 Mon Sep 17 00:00:00 2001 From: Kim Lilliestierna XX Date: Thu, 12 Apr 2012 08:18:09 +0000 Subject: caif_hsi: use dev_dbg not dev_err for reporting Use dev_dbg instead of dev_err for reporting in cfhsi_wakeup_cb. Signed-off-by: Kim Lilliestierna Signed-off-by: David S. Miller diff --git a/drivers/net/caif/caif_hsi.c b/drivers/net/caif/caif_hsi.c index d0d9a6f..9c1c8cd 100644 --- a/drivers/net/caif/caif_hsi.c +++ b/drivers/net/caif/caif_hsi.c @@ -744,14 +744,14 @@ static void cfhsi_wake_up(struct work_struct *work) size_t fifo_occupancy = 0; /* Wakeup timeout */ - dev_err(&cfhsi->ndev->dev, "%s: Timeout.\n", + dev_dbg(&cfhsi->ndev->dev, "%s: Timeout.\n", __func__); /* Check FIFO to check if modem has sent something. */ WARN_ON(cfhsi->dev->cfhsi_fifo_occupancy(cfhsi->dev, &fifo_occupancy)); - dev_err(&cfhsi->ndev->dev, "%s: Bytes in FIFO: %u.\n", + dev_dbg(&cfhsi->ndev->dev, "%s: Bytes in FIFO: %u.\n", __func__, (unsigned) fifo_occupancy); /* Check if we misssed the interrupt. */ -- cgit v0.10.2 From bfa890a3cdeed29eef53d54cd7f80cec0fd46b11 Mon Sep 17 00:00:00 2001 From: Sachin Prabhu Date: Fri, 13 Apr 2012 14:04:32 +0100 Subject: Fix number parsing in cifs_parse_mount_options The function kstrtoul() used to parse number strings in the mount option parser is set to expect a base 10 number . This treats the octal numbers passed for mount options such as file_mode as base10 numbers leading to incorrect behavior. Change the 'base' argument passed to kstrtoul from 10 to 0 to allow it to auto-detect the base of the number passed. Signed-off-by: Sachin Prabhu Acked-by: Jeff Layton Reported-by: Chris Clayton Signed-off-by: Steve French diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 6a86f3d..f31dc9a 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1123,7 +1123,7 @@ static int get_option_ul(substring_t args[], unsigned long *option) string = match_strdup(args); if (string == NULL) return -ENOMEM; - rc = kstrtoul(string, 10, option); + rc = kstrtoul(string, 0, option); kfree(string); return rc; -- cgit v0.10.2 From 6ed3cf2cdfce4c9f1d73171bd3f27d9cb77b734e Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 13 Apr 2012 11:49:04 -0400 Subject: btrfs: btrfs_root_readonly() broken on big-endian ->root_flags is __le64 and all accesses to it go through the helpers that do proper conversions. Except for btrfs_root_readonly(), which checks bit 0 as in host-endian... Signed-off-by: Al Viro diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 5b8ef8e..3f65a81 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -2166,7 +2166,7 @@ BTRFS_SETGET_STACK_FUNCS(root_last_snapshot, struct btrfs_root_item, static inline bool btrfs_root_readonly(struct btrfs_root *root) { - return root->root_item.flags & BTRFS_ROOT_SUBVOL_RDONLY; + return (root->root_item.flags & cpu_to_le64(BTRFS_ROOT_SUBVOL_RDONLY)) != 0; } /* struct btrfs_root_backup */ -- cgit v0.10.2 From 3a251f04fe97c3d335b745c98e4b377e3c3899f2 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 13 Apr 2012 12:22:00 -0400 Subject: ocfs2: ->l_next_free_req breakage on big-endian It's le16, not le32... Signed-off-by: Al Viro diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c index 3165aeb..31b9463 100644 --- a/fs/ocfs2/alloc.c +++ b/fs/ocfs2/alloc.c @@ -1134,7 +1134,7 @@ static int ocfs2_adjust_rightmost_branch(handle_t *handle, } el = path_leaf_el(path); - rec = &el->l_recs[le32_to_cpu(el->l_next_free_rec) - 1]; + rec = &el->l_recs[le16_to_cpu(el->l_next_free_rec) - 1]; ocfs2_adjust_rightmost_records(handle, et, path, rec); diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c index cf78233..a7b7217 100644 --- a/fs/ocfs2/refcounttree.c +++ b/fs/ocfs2/refcounttree.c @@ -1036,14 +1036,14 @@ static int ocfs2_get_refcount_cpos_end(struct ocfs2_caching_info *ci, tmp_el = left_path->p_node[subtree_root].el; blkno = left_path->p_node[subtree_root+1].bh->b_blocknr; - for (i = 0; i < le32_to_cpu(tmp_el->l_next_free_rec); i++) { + for (i = 0; i < le16_to_cpu(tmp_el->l_next_free_rec); i++) { if (le64_to_cpu(tmp_el->l_recs[i].e_blkno) == blkno) { *cpos_end = le32_to_cpu(tmp_el->l_recs[i+1].e_cpos); break; } } - BUG_ON(i == le32_to_cpu(tmp_el->l_next_free_rec)); + BUG_ON(i == le16_to_cpu(tmp_el->l_next_free_rec)); out: ocfs2_free_path(left_path); -- cgit v0.10.2 From e1bf4cc620fd143766ddfcee3b004a1d1bb34fd0 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 13 Apr 2012 12:27:11 -0400 Subject: ocfs: ->rl_used breakage on big-endian it's le16, not le32 or le64... Signed-off-by: Al Viro diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c index a7b7217..bc90ebc 100644 --- a/fs/ocfs2/refcounttree.c +++ b/fs/ocfs2/refcounttree.c @@ -1468,7 +1468,7 @@ static int ocfs2_divide_leaf_refcount_block(struct buffer_head *ref_leaf_bh, trace_ocfs2_divide_leaf_refcount_block( (unsigned long long)ref_leaf_bh->b_blocknr, - le32_to_cpu(rl->rl_count), le32_to_cpu(rl->rl_used)); + le32_to_cpu(rl->rl_count), le16_to_cpu(rl->rl_used)); /* * XXX: Improvement later. @@ -2411,7 +2411,7 @@ static int ocfs2_calc_refcount_meta_credits(struct super_block *sb, rb = (struct ocfs2_refcount_block *) prev_bh->b_data; - if (le64_to_cpu(rb->rf_records.rl_used) + + if (le16_to_cpu(rb->rf_records.rl_used) + recs_add > le16_to_cpu(rb->rf_records.rl_count)) ref_blocks++; @@ -2476,7 +2476,7 @@ static int ocfs2_calc_refcount_meta_credits(struct super_block *sb, if (prev_bh) { rb = (struct ocfs2_refcount_block *)prev_bh->b_data; - if (le64_to_cpu(rb->rf_records.rl_used) + recs_add > + if (le16_to_cpu(rb->rf_records.rl_used) + recs_add > le16_to_cpu(rb->rf_records.rl_count)) ref_blocks++; @@ -3629,7 +3629,7 @@ int ocfs2_refcounted_xattr_delete_need(struct inode *inode, * one will split a refcount rec, so totally we need * clusters * 2 new refcount rec. */ - if (le64_to_cpu(rb->rf_records.rl_used) + clusters * 2 > + if (le16_to_cpu(rb->rf_records.rl_used) + clusters * 2 > le16_to_cpu(rb->rf_records.rl_count)) ref_blocks++; -- cgit v0.10.2 From 28748b325dc2d730ccc312830a91c4ae0c0d9379 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 13 Apr 2012 12:28:21 -0400 Subject: ocfs2: ->rl_count endianness breakage le16, not le32... Signed-off-by: Al Viro diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c index bc90ebc..9f32d7c 100644 --- a/fs/ocfs2/refcounttree.c +++ b/fs/ocfs2/refcounttree.c @@ -1468,7 +1468,7 @@ static int ocfs2_divide_leaf_refcount_block(struct buffer_head *ref_leaf_bh, trace_ocfs2_divide_leaf_refcount_block( (unsigned long long)ref_leaf_bh->b_blocknr, - le32_to_cpu(rl->rl_count), le16_to_cpu(rl->rl_used)); + le16_to_cpu(rl->rl_count), le16_to_cpu(rl->rl_used)); /* * XXX: Improvement later. -- cgit v0.10.2 From 72094e43e3af5020510f920321d71f1798fa896d Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 13 Apr 2012 12:30:02 -0400 Subject: ocfs2: ->e_leaf_clusters endianness breakage le16, not le32... Signed-off-by: Al Viro diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c index ba5d97e..f169da4 100644 --- a/fs/ocfs2/suballoc.c +++ b/fs/ocfs2/suballoc.c @@ -600,7 +600,7 @@ static void ocfs2_bg_alloc_cleanup(handle_t *handle, ret = ocfs2_free_clusters(handle, cluster_ac->ac_inode, cluster_ac->ac_bh, le64_to_cpu(rec->e_blkno), - le32_to_cpu(rec->e_leaf_clusters)); + le16_to_cpu(rec->e_leaf_clusters)); if (ret) mlog_errno(ret); /* Try all the clusters to free */ @@ -1628,7 +1628,7 @@ static int ocfs2_bg_discontig_fix_by_rec(struct ocfs2_suballoc_result *res, { unsigned int bpc = le16_to_cpu(cl->cl_bpc); unsigned int bitoff = le32_to_cpu(rec->e_cpos) * bpc; - unsigned int bitcount = le32_to_cpu(rec->e_leaf_clusters) * bpc; + unsigned int bitcount = le16_to_cpu(rec->e_leaf_clusters) * bpc; if (res->sr_bit_offset < bitoff) return 0; -- cgit v0.10.2 From 1716a96101c49186bb0b8491922fd3e69030235f Mon Sep 17 00:00:00 2001 From: Gao feng Date: Fri, 6 Apr 2012 00:13:10 +0000 Subject: ipv6: fix problem with expired dst cache If the ipv6 dst cache which copy from the dst generated by ICMPV6 RA packet. this dst cache will not check expire because it has no RTF_EXPIRES flag. So this dst cache will always be used until the dst gc run. Change the struct dst_entry,add a union contains new pointer from and expires. When rt6_info.rt6i_flags has no RTF_EXPIRES flag,the dst.expires has no use. we can use this field to point to where the dst cache copy from. The dst.from is only used in IPV6. rt6_check_expired check if rt6_info.dst.from is expired. ip6_rt_copy only set dst.from when the ort has flag RTF_ADDRCONF and RTF_DEFAULT.then hold the ort. ip6_dst_destroy release the ort. Add some functions to operate the RTF_EXPIRES flag and expires(from) together. and change the code to use these new adding functions. Changes from v5: modify ip6_route_add and ndisc_router_discovery to use new adding functions. Only set dst.from when the ort has flag RTF_ADDRCONF and RTF_DEFAULT.then hold the ort. Signed-off-by: Gao feng Signed-off-by: David S. Miller diff --git a/include/net/dst.h b/include/net/dst.h index 59c5d18..ff4da42 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -36,7 +36,11 @@ struct dst_entry { struct net_device *dev; struct dst_ops *ops; unsigned long _metrics; - unsigned long expires; + union { + unsigned long expires; + /* point to where the dst_entry copied from */ + struct dst_entry *from; + }; struct dst_entry *path; struct neighbour __rcu *_neighbour; #ifdef CONFIG_XFRM diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h index b26bb81..c64778f 100644 --- a/include/net/ip6_fib.h +++ b/include/net/ip6_fib.h @@ -123,6 +123,48 @@ static inline struct inet6_dev *ip6_dst_idev(struct dst_entry *dst) return ((struct rt6_info *)dst)->rt6i_idev; } +static inline void rt6_clean_expires(struct rt6_info *rt) +{ + if (!(rt->rt6i_flags & RTF_EXPIRES) && rt->dst.from) + dst_release(rt->dst.from); + + rt->rt6i_flags &= ~RTF_EXPIRES; + rt->dst.expires = 0; +} + +static inline void rt6_set_expires(struct rt6_info *rt, unsigned long expires) +{ + if (!(rt->rt6i_flags & RTF_EXPIRES) && rt->dst.from) + dst_release(rt->dst.from); + + rt->rt6i_flags |= RTF_EXPIRES; + rt->dst.expires = expires; +} + +static inline void rt6_update_expires(struct rt6_info *rt, int timeout) +{ + if (!(rt->rt6i_flags & RTF_EXPIRES) && rt->dst.from) + dst_release(rt->dst.from); + + dst_set_expires(&rt->dst, timeout); + rt->rt6i_flags |= RTF_EXPIRES; +} + +static inline void rt6_set_from(struct rt6_info *rt, struct rt6_info *from) +{ + struct dst_entry *new = (struct dst_entry *) from; + + if (!(rt->rt6i_flags & RTF_EXPIRES) && rt->dst.from) { + if (new == rt->dst.from) + return; + dst_release(rt->dst.from); + } + + rt->rt6i_flags &= ~RTF_EXPIRES; + rt->dst.from = new; + dst_hold(new); +} + struct fib6_walker_t { struct list_head lh; struct fib6_node *root, *node; diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 6a3bb60..7d5cb97 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -803,8 +803,7 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp) ip6_del_rt(rt); rt = NULL; } else if (!(rt->rt6i_flags & RTF_EXPIRES)) { - rt->dst.expires = expires; - rt->rt6i_flags |= RTF_EXPIRES; + rt6_set_expires(rt, expires); } } dst_release(&rt->dst); @@ -1887,11 +1886,9 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len, bool sllao) rt = NULL; } else if (addrconf_finite_timeout(rt_expires)) { /* not infinity */ - rt->dst.expires = jiffies + rt_expires; - rt->rt6i_flags |= RTF_EXPIRES; + rt6_set_expires(rt, jiffies + rt_expires); } else { - rt->rt6i_flags &= ~RTF_EXPIRES; - rt->dst.expires = 0; + rt6_clean_expires(rt); } } else if (valid_lft) { clock_t expires = 0; diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index 5b27fbc..9371743 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -673,11 +673,10 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct rt6_info *rt, &rt->rt6i_gateway)) { if (!(iter->rt6i_flags & RTF_EXPIRES)) return -EEXIST; - iter->dst.expires = rt->dst.expires; - if (!(rt->rt6i_flags & RTF_EXPIRES)) { - iter->rt6i_flags &= ~RTF_EXPIRES; - iter->dst.expires = 0; - } + if (!(rt->rt6i_flags & RTF_EXPIRES)) + rt6_clean_expires(iter); + else + rt6_set_expires(iter, rt->dst.expires); return -EEXIST; } } diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index 3dcdb81..176b469 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -1264,8 +1264,7 @@ static void ndisc_router_discovery(struct sk_buff *skb) } if (rt) - rt->dst.expires = jiffies + (HZ * lifetime); - + rt6_set_expires(rt, jiffies + (HZ * lifetime)); if (ra_msg->icmph.icmp6_hop_limit) { in6_dev->cnf.hop_limit = ra_msg->icmph.icmp6_hop_limit; if (rt) diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 3992e26..bc4888d 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -62,7 +62,7 @@ #include #endif -static struct rt6_info *ip6_rt_copy(const struct rt6_info *ort, +static struct rt6_info *ip6_rt_copy(struct rt6_info *ort, const struct in6_addr *dest); static struct dst_entry *ip6_dst_check(struct dst_entry *dst, u32 cookie); static unsigned int ip6_default_advmss(const struct dst_entry *dst); @@ -285,6 +285,10 @@ static void ip6_dst_destroy(struct dst_entry *dst) rt->rt6i_idev = NULL; in6_dev_put(idev); } + + if (!(rt->rt6i_flags & RTF_EXPIRES) && dst->from) + dst_release(dst->from); + if (peer) { rt->rt6i_peer = NULL; inet_putpeer(peer); @@ -329,8 +333,17 @@ static void ip6_dst_ifdown(struct dst_entry *dst, struct net_device *dev, static __inline__ int rt6_check_expired(const struct rt6_info *rt) { - return (rt->rt6i_flags & RTF_EXPIRES) && - time_after(jiffies, rt->dst.expires); + struct rt6_info *ort = NULL; + + if (rt->rt6i_flags & RTF_EXPIRES) { + if (time_after(jiffies, rt->dst.expires)) + return 1; + } else if (rt->dst.from) { + ort = (struct rt6_info *) rt->dst.from; + return (ort->rt6i_flags & RTF_EXPIRES) && + time_after(jiffies, ort->dst.expires); + } + return 0; } static inline int rt6_need_strict(const struct in6_addr *daddr) @@ -620,12 +633,11 @@ int rt6_route_rcv(struct net_device *dev, u8 *opt, int len, (rt->rt6i_flags & ~RTF_PREF_MASK) | RTF_PREF(pref); if (rt) { - if (!addrconf_finite_timeout(lifetime)) { - rt->rt6i_flags &= ~RTF_EXPIRES; - } else { - rt->dst.expires = jiffies + HZ * lifetime; - rt->rt6i_flags |= RTF_EXPIRES; - } + if (!addrconf_finite_timeout(lifetime)) + rt6_clean_expires(rt); + else + rt6_set_expires(rt, jiffies + HZ * lifetime); + dst_release(&rt->dst); } return 0; @@ -730,7 +742,7 @@ int ip6_ins_rt(struct rt6_info *rt) return __ip6_ins_rt(rt, &info); } -static struct rt6_info *rt6_alloc_cow(const struct rt6_info *ort, +static struct rt6_info *rt6_alloc_cow(struct rt6_info *ort, const struct in6_addr *daddr, const struct in6_addr *saddr) { @@ -954,10 +966,10 @@ struct dst_entry *ip6_blackhole_route(struct net *net, struct dst_entry *dst_ori rt->rt6i_idev = ort->rt6i_idev; if (rt->rt6i_idev) in6_dev_hold(rt->rt6i_idev); - rt->dst.expires = 0; rt->rt6i_gateway = ort->rt6i_gateway; - rt->rt6i_flags = ort->rt6i_flags & ~RTF_EXPIRES; + rt->rt6i_flags = ort->rt6i_flags; + rt6_clean_expires(rt); rt->rt6i_metric = 0; memcpy(&rt->rt6i_dst, &ort->rt6i_dst, sizeof(struct rt6key)); @@ -1019,10 +1031,9 @@ static void ip6_link_failure(struct sk_buff *skb) rt = (struct rt6_info *) skb_dst(skb); if (rt) { - if (rt->rt6i_flags & RTF_CACHE) { - dst_set_expires(&rt->dst, 0); - rt->rt6i_flags |= RTF_EXPIRES; - } else if (rt->rt6i_node && (rt->rt6i_flags & RTF_DEFAULT)) + if (rt->rt6i_flags & RTF_CACHE) + rt6_update_expires(rt, 0); + else if (rt->rt6i_node && (rt->rt6i_flags & RTF_DEFAULT)) rt->rt6i_node->fn_sernum = -1; } } @@ -1289,9 +1300,12 @@ int ip6_route_add(struct fib6_config *cfg) } rt->dst.obsolete = -1; - rt->dst.expires = (cfg->fc_flags & RTF_EXPIRES) ? - jiffies + clock_t_to_jiffies(cfg->fc_expires) : - 0; + + if (cfg->fc_flags & RTF_EXPIRES) + rt6_set_expires(rt, jiffies + + clock_t_to_jiffies(cfg->fc_expires)); + else + rt6_clean_expires(rt); if (cfg->fc_protocol == RTPROT_UNSPEC) cfg->fc_protocol = RTPROT_BOOT; @@ -1736,8 +1750,8 @@ again: features |= RTAX_FEATURE_ALLFRAG; dst_metric_set(&rt->dst, RTAX_FEATURES, features); } - dst_set_expires(&rt->dst, net->ipv6.sysctl.ip6_rt_mtu_expires); - rt->rt6i_flags |= RTF_MODIFIED|RTF_EXPIRES; + rt6_update_expires(rt, net->ipv6.sysctl.ip6_rt_mtu_expires); + rt->rt6i_flags |= RTF_MODIFIED; goto out; } @@ -1765,9 +1779,8 @@ again: * which is 10 mins. After 10 mins the decreased pmtu is expired * and detecting PMTU increase will be automatically happened. */ - dst_set_expires(&nrt->dst, net->ipv6.sysctl.ip6_rt_mtu_expires); - nrt->rt6i_flags |= RTF_DYNAMIC|RTF_EXPIRES; - + rt6_update_expires(nrt, net->ipv6.sysctl.ip6_rt_mtu_expires); + nrt->rt6i_flags |= RTF_DYNAMIC; ip6_ins_rt(nrt); } out: @@ -1799,7 +1812,7 @@ void rt6_pmtu_discovery(const struct in6_addr *daddr, const struct in6_addr *sad * Misc support functions */ -static struct rt6_info *ip6_rt_copy(const struct rt6_info *ort, +static struct rt6_info *ip6_rt_copy(struct rt6_info *ort, const struct in6_addr *dest) { struct net *net = dev_net(ort->dst.dev); @@ -1819,10 +1832,14 @@ static struct rt6_info *ip6_rt_copy(const struct rt6_info *ort, if (rt->rt6i_idev) in6_dev_hold(rt->rt6i_idev); rt->dst.lastuse = jiffies; - rt->dst.expires = 0; rt->rt6i_gateway = ort->rt6i_gateway; - rt->rt6i_flags = ort->rt6i_flags & ~RTF_EXPIRES; + rt->rt6i_flags = ort->rt6i_flags; + if ((ort->rt6i_flags & (RTF_DEFAULT | RTF_ADDRCONF)) == + (RTF_DEFAULT | RTF_ADDRCONF)) + rt6_set_from(rt, ort); + else + rt6_clean_expires(rt); rt->rt6i_metric = 0; #ifdef CONFIG_IPV6_SUBTREES -- cgit v0.10.2 From 9a5d2bd99e0dfe9a31b3c160073ac445ba3d773f Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sun, 8 Apr 2012 10:01:44 +0000 Subject: ppp: Fix race condition with queue start/stop Commit e675f0cc9a872fd152edc0c77acfed19bf28b81e ("ppp: Don't stop and restart queue on every TX packet") introduced a race condition which could leave the net queue stopped even when the channel is no longer busy. By calling netif_stop_queue() from ppp_start_xmit(), based on the return value from ppp_xmit_process() but *after* all the locks have been dropped, we could potentially do so *after* the channel has actually finished transmitting and attempted to re-wake the queue. Fix this by moving the netif_stop_queue() into ppp_xmit_process() under the xmit lock. I hadn't done this previously, because it gets called from other places than ppp_start_xmit(). But I now think it's the better option. The net queue *should* be stopped if the channel becomes congested due to writes from pppd, anyway. Signed-off-by: David Woodhouse Signed-off-by: David S. Miller diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c index 33f8c51..21d7151 100644 --- a/drivers/net/ppp/ppp_generic.c +++ b/drivers/net/ppp/ppp_generic.c @@ -235,7 +235,7 @@ struct ppp_net { /* Prototypes. */ static int ppp_unattached_ioctl(struct net *net, struct ppp_file *pf, struct file *file, unsigned int cmd, unsigned long arg); -static int ppp_xmit_process(struct ppp *ppp); +static void ppp_xmit_process(struct ppp *ppp); static void ppp_send_frame(struct ppp *ppp, struct sk_buff *skb); static void ppp_push(struct ppp *ppp); static void ppp_channel_push(struct channel *pch); @@ -969,8 +969,7 @@ ppp_start_xmit(struct sk_buff *skb, struct net_device *dev) put_unaligned_be16(proto, pp); skb_queue_tail(&ppp->file.xq, skb); - if (!ppp_xmit_process(ppp)) - netif_stop_queue(dev); + ppp_xmit_process(ppp); return NETDEV_TX_OK; outf: @@ -1048,11 +1047,10 @@ static void ppp_setup(struct net_device *dev) * Called to do any work queued up on the transmit side * that can now be done. */ -static int +static void ppp_xmit_process(struct ppp *ppp) { struct sk_buff *skb; - int ret = 0; ppp_xmit_lock(ppp); if (!ppp->closing) { @@ -1062,13 +1060,12 @@ ppp_xmit_process(struct ppp *ppp) ppp_send_frame(ppp, skb); /* If there's no work left to do, tell the core net code that we can accept some more. */ - if (!ppp->xmit_pending && !skb_peek(&ppp->file.xq)) { + if (!ppp->xmit_pending && !skb_peek(&ppp->file.xq)) netif_wake_queue(ppp->dev); - ret = 1; - } + else + netif_stop_queue(ppp->dev); } ppp_xmit_unlock(ppp); - return ret; } static inline struct sk_buff * -- cgit v0.10.2 From ca8f4fb21d08747013cce9cf1840aa5bfc31f2d8 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Mon, 9 Apr 2012 00:24:02 +0000 Subject: skbuff: struct ubuf_info callback type safety The skb struct ubuf_info callback gets passed struct ubuf_info itself, not the arg value as the field name and the function signature seem to imply. Rename the arg field to ctx to match usage, add documentation and change the callback argument type to make usage clear and to have compiler check correctness. Signed-off-by: Michael S. Tsirkin Signed-off-by: David S. Miller diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index f0da2c3..1f21d2a 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -238,7 +238,7 @@ static void handle_tx(struct vhost_net *net) vq->heads[vq->upend_idx].len = len; ubuf->callback = vhost_zerocopy_callback; - ubuf->arg = vq->ubufs; + ubuf->ctx = vq->ubufs; ubuf->desc = vq->upend_idx; msg.msg_control = ubuf; msg.msg_controllen = sizeof(ubuf); diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 947f00d..51e4c1e 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -1598,10 +1598,9 @@ void vhost_ubuf_put_and_wait(struct vhost_ubuf_ref *ubufs) kfree(ubufs); } -void vhost_zerocopy_callback(void *arg) +void vhost_zerocopy_callback(struct ubuf_info *ubuf) { - struct ubuf_info *ubuf = arg; - struct vhost_ubuf_ref *ubufs = ubuf->arg; + struct vhost_ubuf_ref *ubufs = ubuf->ctx; struct vhost_virtqueue *vq = ubufs->vq; /* set len = 1 to mark this desc buffers done DMA */ diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index 8dcf4cc..8de1fd5 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -188,7 +188,7 @@ bool vhost_enable_notify(struct vhost_dev *, struct vhost_virtqueue *); int vhost_log_write(struct vhost_virtqueue *vq, struct vhost_log *log, unsigned int log_num, u64 len); -void vhost_zerocopy_callback(void *arg); +void vhost_zerocopy_callback(struct ubuf_info *); int vhost_zerocopy_signal_used(struct vhost_virtqueue *vq); #define vq_err(vq, fmt, ...) do { \ diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 70a3f8d..775292a 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -238,11 +238,12 @@ enum { /* * The callback notifies userspace to release buffers when skb DMA is done in * lower device, the skb last reference should be 0 when calling this. - * The desc is used to track userspace buffer index. + * The ctx field is used to track device context. + * The desc field is used to track userspace buffer index. */ struct ubuf_info { - void (*callback)(void *); - void *arg; + void (*callback)(struct ubuf_info *); + void *ctx; unsigned long desc; }; -- cgit v0.10.2 From 5ba840f9da1ff96e0c6e982608a9e80e35333cc5 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Mon, 2 Apr 2012 16:04:13 -0400 Subject: alpha: fix build failures from system.h dismemberment commit ec2212088c42ff7d1362629ec26dda4f3e8bdad3 "Disintegrate asm/system.h for Alpha" combined with commit b4816afa3986704d1404fc48e931da5135820472 "Move the asm-generic/system.h xchg() implementation to asm-generic/cmpxchg.h" introduced the concept of asm/cmpxchg.h but the alpha arch never got one. Fork the cmpxchg content out of the asm/atomic.h file to create one. Some minor whitespace fixups were done on the block of code that created the new file. Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Cc: David Howells Acked-by: Matt Turner Signed-off-by: Paul Gortmaker diff --git a/arch/alpha/include/asm/atomic.h b/arch/alpha/include/asm/atomic.h index f62251e..3bb7ffe 100644 --- a/arch/alpha/include/asm/atomic.h +++ b/arch/alpha/include/asm/atomic.h @@ -3,6 +3,7 @@ #include #include +#include /* * Atomic operations that C can't guarantee us. Useful for @@ -168,73 +169,6 @@ static __inline__ long atomic64_sub_return(long i, atomic64_t * v) return result; } -/* - * Atomic exchange routines. - */ - -#define __ASM__MB -#define ____xchg(type, args...) __xchg ## type ## _local(args) -#define ____cmpxchg(type, args...) __cmpxchg ## type ## _local(args) -#include - -#define xchg_local(ptr,x) \ - ({ \ - __typeof__(*(ptr)) _x_ = (x); \ - (__typeof__(*(ptr))) __xchg_local((ptr), (unsigned long)_x_, \ - sizeof(*(ptr))); \ - }) - -#define cmpxchg_local(ptr, o, n) \ - ({ \ - __typeof__(*(ptr)) _o_ = (o); \ - __typeof__(*(ptr)) _n_ = (n); \ - (__typeof__(*(ptr))) __cmpxchg_local((ptr), (unsigned long)_o_, \ - (unsigned long)_n_, \ - sizeof(*(ptr))); \ - }) - -#define cmpxchg64_local(ptr, o, n) \ - ({ \ - BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ - cmpxchg_local((ptr), (o), (n)); \ - }) - -#ifdef CONFIG_SMP -#undef __ASM__MB -#define __ASM__MB "\tmb\n" -#endif -#undef ____xchg -#undef ____cmpxchg -#define ____xchg(type, args...) __xchg ##type(args) -#define ____cmpxchg(type, args...) __cmpxchg ##type(args) -#include - -#define xchg(ptr,x) \ - ({ \ - __typeof__(*(ptr)) _x_ = (x); \ - (__typeof__(*(ptr))) __xchg((ptr), (unsigned long)_x_, \ - sizeof(*(ptr))); \ - }) - -#define cmpxchg(ptr, o, n) \ - ({ \ - __typeof__(*(ptr)) _o_ = (o); \ - __typeof__(*(ptr)) _n_ = (n); \ - (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_, \ - (unsigned long)_n_, sizeof(*(ptr)));\ - }) - -#define cmpxchg64(ptr, o, n) \ - ({ \ - BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ - cmpxchg((ptr), (o), (n)); \ - }) - -#undef __ASM__MB -#undef ____cmpxchg - -#define __HAVE_ARCH_CMPXCHG 1 - #define atomic64_cmpxchg(v, old, new) (cmpxchg(&((v)->counter), old, new)) #define atomic64_xchg(v, new) (xchg(&((v)->counter), new)) diff --git a/arch/alpha/include/asm/cmpxchg.h b/arch/alpha/include/asm/cmpxchg.h new file mode 100644 index 0000000..429e8cd --- /dev/null +++ b/arch/alpha/include/asm/cmpxchg.h @@ -0,0 +1,71 @@ +#ifndef _ALPHA_CMPXCHG_H +#define _ALPHA_CMPXCHG_H + +/* + * Atomic exchange routines. + */ + +#define __ASM__MB +#define ____xchg(type, args...) __xchg ## type ## _local(args) +#define ____cmpxchg(type, args...) __cmpxchg ## type ## _local(args) +#include + +#define xchg_local(ptr, x) \ +({ \ + __typeof__(*(ptr)) _x_ = (x); \ + (__typeof__(*(ptr))) __xchg_local((ptr), (unsigned long)_x_, \ + sizeof(*(ptr))); \ +}) + +#define cmpxchg_local(ptr, o, n) \ +({ \ + __typeof__(*(ptr)) _o_ = (o); \ + __typeof__(*(ptr)) _n_ = (n); \ + (__typeof__(*(ptr))) __cmpxchg_local((ptr), (unsigned long)_o_, \ + (unsigned long)_n_, \ + sizeof(*(ptr))); \ +}) + +#define cmpxchg64_local(ptr, o, n) \ +({ \ + BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ + cmpxchg_local((ptr), (o), (n)); \ +}) + +#ifdef CONFIG_SMP +#undef __ASM__MB +#define __ASM__MB "\tmb\n" +#endif +#undef ____xchg +#undef ____cmpxchg +#define ____xchg(type, args...) __xchg ##type(args) +#define ____cmpxchg(type, args...) __cmpxchg ##type(args) +#include + +#define xchg(ptr, x) \ +({ \ + __typeof__(*(ptr)) _x_ = (x); \ + (__typeof__(*(ptr))) __xchg((ptr), (unsigned long)_x_, \ + sizeof(*(ptr))); \ +}) + +#define cmpxchg(ptr, o, n) \ +({ \ + __typeof__(*(ptr)) _o_ = (o); \ + __typeof__(*(ptr)) _n_ = (n); \ + (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_, \ + (unsigned long)_n_, sizeof(*(ptr)));\ +}) + +#define cmpxchg64(ptr, o, n) \ +({ \ + BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ + cmpxchg((ptr), (o), (n)); \ +}) + +#undef __ASM__MB +#undef ____cmpxchg + +#define __HAVE_ARCH_CMPXCHG 1 + +#endif /* _ALPHA_CMPXCHG_H */ diff --git a/arch/alpha/include/asm/xchg.h b/arch/alpha/include/asm/xchg.h index 1d1b436..0ca9724 100644 --- a/arch/alpha/include/asm/xchg.h +++ b/arch/alpha/include/asm/xchg.h @@ -1,10 +1,10 @@ -#ifndef _ALPHA_ATOMIC_H +#ifndef _ALPHA_CMPXCHG_H #error Do not include xchg.h directly! #else /* * xchg/xchg_local and cmpxchg/cmpxchg_local share the same code * except that local version do not have the expensive memory barrier. - * So this file is included twice from asm/system.h. + * So this file is included twice from asm/cmpxchg.h. */ /* -- cgit v0.10.2 From 85f8f7759e418c814ee2ceacf73eddb9bed39492 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Tue, 3 Apr 2012 13:51:35 -0400 Subject: ia64: populate the cmpxchg header with appropriate code commit 93f378883cecb9dcb2cf5b51d9d24175906659da "Fix ia64 build errors (fallout from system.h disintegration)" introduced arch/ia64/include/asm/cmpxchg.h as a temporary build fix and stated: "... leave the migration of xchg() and cmpxchg() to this new header file for a future patch." Migrate the appropriate chunks from asm/intrinsics.h and fix the whitespace issues in the migrated chunk. Cc: Fenghua Yu Cc: David Howells Acked-by: Tony Luck Signed-off-by: Paul Gortmaker diff --git a/arch/ia64/include/asm/cmpxchg.h b/arch/ia64/include/asm/cmpxchg.h index 4c96187..4f37dbb 100644 --- a/arch/ia64/include/asm/cmpxchg.h +++ b/arch/ia64/include/asm/cmpxchg.h @@ -1 +1,147 @@ -#include +#ifndef _ASM_IA64_CMPXCHG_H +#define _ASM_IA64_CMPXCHG_H + +/* + * Compare/Exchange, forked from asm/intrinsics.h + * which was: + * + * Copyright (C) 2002-2003 Hewlett-Packard Co + * David Mosberger-Tang + */ + +#ifndef __ASSEMBLY__ + +#include +/* include compiler specific intrinsics */ +#include +#ifdef __INTEL_COMPILER +# include +#else +# include +#endif + +/* + * This function doesn't exist, so you'll get a linker error if + * something tries to do an invalid xchg(). + */ +extern void ia64_xchg_called_with_bad_pointer(void); + +#define __xchg(x, ptr, size) \ +({ \ + unsigned long __xchg_result; \ + \ + switch (size) { \ + case 1: \ + __xchg_result = ia64_xchg1((__u8 *)ptr, x); \ + break; \ + \ + case 2: \ + __xchg_result = ia64_xchg2((__u16 *)ptr, x); \ + break; \ + \ + case 4: \ + __xchg_result = ia64_xchg4((__u32 *)ptr, x); \ + break; \ + \ + case 8: \ + __xchg_result = ia64_xchg8((__u64 *)ptr, x); \ + break; \ + default: \ + ia64_xchg_called_with_bad_pointer(); \ + } \ + __xchg_result; \ +}) + +#define xchg(ptr, x) \ +((__typeof__(*(ptr))) __xchg((unsigned long) (x), (ptr), sizeof(*(ptr)))) + +/* + * Atomic compare and exchange. Compare OLD with MEM, if identical, + * store NEW in MEM. Return the initial value in MEM. Success is + * indicated by comparing RETURN with OLD. + */ + +#define __HAVE_ARCH_CMPXCHG 1 + +/* + * This function doesn't exist, so you'll get a linker error + * if something tries to do an invalid cmpxchg(). + */ +extern long ia64_cmpxchg_called_with_bad_pointer(void); + +#define ia64_cmpxchg(sem, ptr, old, new, size) \ +({ \ + __u64 _o_, _r_; \ + \ + switch (size) { \ + case 1: \ + _o_ = (__u8) (long) (old); \ + break; \ + case 2: \ + _o_ = (__u16) (long) (old); \ + break; \ + case 4: \ + _o_ = (__u32) (long) (old); \ + break; \ + case 8: \ + _o_ = (__u64) (long) (old); \ + break; \ + default: \ + break; \ + } \ + switch (size) { \ + case 1: \ + _r_ = ia64_cmpxchg1_##sem((__u8 *) ptr, new, _o_); \ + break; \ + \ + case 2: \ + _r_ = ia64_cmpxchg2_##sem((__u16 *) ptr, new, _o_); \ + break; \ + \ + case 4: \ + _r_ = ia64_cmpxchg4_##sem((__u32 *) ptr, new, _o_); \ + break; \ + \ + case 8: \ + _r_ = ia64_cmpxchg8_##sem((__u64 *) ptr, new, _o_); \ + break; \ + \ + default: \ + _r_ = ia64_cmpxchg_called_with_bad_pointer(); \ + break; \ + } \ + (__typeof__(old)) _r_; \ +}) + +#define cmpxchg_acq(ptr, o, n) \ + ia64_cmpxchg(acq, (ptr), (o), (n), sizeof(*(ptr))) +#define cmpxchg_rel(ptr, o, n) \ + ia64_cmpxchg(rel, (ptr), (o), (n), sizeof(*(ptr))) + +/* for compatibility with other platforms: */ +#define cmpxchg(ptr, o, n) cmpxchg_acq((ptr), (o), (n)) +#define cmpxchg64(ptr, o, n) cmpxchg_acq((ptr), (o), (n)) + +#define cmpxchg_local cmpxchg +#define cmpxchg64_local cmpxchg64 + +#ifdef CONFIG_IA64_DEBUG_CMPXCHG +# define CMPXCHG_BUGCHECK_DECL int _cmpxchg_bugcheck_count = 128; +# define CMPXCHG_BUGCHECK(v) \ +do { \ + if (_cmpxchg_bugcheck_count-- <= 0) { \ + void *ip; \ + extern int printk(const char *fmt, ...); \ + ip = (void *) ia64_getreg(_IA64_REG_IP); \ + printk("CMPXCHG_BUGCHECK: stuck at %p on word %p\n", ip, (v));\ + break; \ + } \ +} while (0) +#else /* !CONFIG_IA64_DEBUG_CMPXCHG */ +# define CMPXCHG_BUGCHECK_DECL +# define CMPXCHG_BUGCHECK(v) +#endif /* !CONFIG_IA64_DEBUG_CMPXCHG */ + +#endif /* !__ASSEMBLY__ */ + +#endif /* _ASM_IA64_CMPXCHG_H */ diff --git a/arch/ia64/include/asm/intrinsics.h b/arch/ia64/include/asm/intrinsics.h index e4076b5..d129e36 100644 --- a/arch/ia64/include/asm/intrinsics.h +++ b/arch/ia64/include/asm/intrinsics.h @@ -18,6 +18,7 @@ #else # include #endif +#include #define ia64_native_get_psr_i() (ia64_native_getreg(_IA64_REG_PSR) & IA64_PSR_I) @@ -81,119 +82,6 @@ extern unsigned long __bad_increment_for_ia64_fetch_and_add (void); #define ia64_fetch_and_add(i,v) (ia64_fetchadd(i, v, rel) + (i)) /* return new value */ -/* - * This function doesn't exist, so you'll get a linker error if - * something tries to do an invalid xchg(). - */ -extern void ia64_xchg_called_with_bad_pointer (void); - -#define __xchg(x,ptr,size) \ -({ \ - unsigned long __xchg_result; \ - \ - switch (size) { \ - case 1: \ - __xchg_result = ia64_xchg1((__u8 *)ptr, x); \ - break; \ - \ - case 2: \ - __xchg_result = ia64_xchg2((__u16 *)ptr, x); \ - break; \ - \ - case 4: \ - __xchg_result = ia64_xchg4((__u32 *)ptr, x); \ - break; \ - \ - case 8: \ - __xchg_result = ia64_xchg8((__u64 *)ptr, x); \ - break; \ - default: \ - ia64_xchg_called_with_bad_pointer(); \ - } \ - __xchg_result; \ -}) - -#define xchg(ptr,x) \ - ((__typeof__(*(ptr))) __xchg ((unsigned long) (x), (ptr), sizeof(*(ptr)))) - -/* - * Atomic compare and exchange. Compare OLD with MEM, if identical, - * store NEW in MEM. Return the initial value in MEM. Success is - * indicated by comparing RETURN with OLD. - */ - -#define __HAVE_ARCH_CMPXCHG 1 - -/* - * This function doesn't exist, so you'll get a linker error - * if something tries to do an invalid cmpxchg(). - */ -extern long ia64_cmpxchg_called_with_bad_pointer (void); - -#define ia64_cmpxchg(sem,ptr,old,new,size) \ -({ \ - __u64 _o_, _r_; \ - \ - switch (size) { \ - case 1: _o_ = (__u8 ) (long) (old); break; \ - case 2: _o_ = (__u16) (long) (old); break; \ - case 4: _o_ = (__u32) (long) (old); break; \ - case 8: _o_ = (__u64) (long) (old); break; \ - default: break; \ - } \ - switch (size) { \ - case 1: \ - _r_ = ia64_cmpxchg1_##sem((__u8 *) ptr, new, _o_); \ - break; \ - \ - case 2: \ - _r_ = ia64_cmpxchg2_##sem((__u16 *) ptr, new, _o_); \ - break; \ - \ - case 4: \ - _r_ = ia64_cmpxchg4_##sem((__u32 *) ptr, new, _o_); \ - break; \ - \ - case 8: \ - _r_ = ia64_cmpxchg8_##sem((__u64 *) ptr, new, _o_); \ - break; \ - \ - default: \ - _r_ = ia64_cmpxchg_called_with_bad_pointer(); \ - break; \ - } \ - (__typeof__(old)) _r_; \ -}) - -#define cmpxchg_acq(ptr, o, n) \ - ia64_cmpxchg(acq, (ptr), (o), (n), sizeof(*(ptr))) -#define cmpxchg_rel(ptr, o, n) \ - ia64_cmpxchg(rel, (ptr), (o), (n), sizeof(*(ptr))) - -/* for compatibility with other platforms: */ -#define cmpxchg(ptr, o, n) cmpxchg_acq((ptr), (o), (n)) -#define cmpxchg64(ptr, o, n) cmpxchg_acq((ptr), (o), (n)) - -#define cmpxchg_local cmpxchg -#define cmpxchg64_local cmpxchg64 - -#ifdef CONFIG_IA64_DEBUG_CMPXCHG -# define CMPXCHG_BUGCHECK_DECL int _cmpxchg_bugcheck_count = 128; -# define CMPXCHG_BUGCHECK(v) \ - do { \ - if (_cmpxchg_bugcheck_count-- <= 0) { \ - void *ip; \ - extern int printk(const char *fmt, ...); \ - ip = (void *) ia64_getreg(_IA64_REG_IP); \ - printk("CMPXCHG_BUGCHECK: stuck at %p on word %p\n", ip, (v)); \ - break; \ - } \ - } while (0) -#else /* !CONFIG_IA64_DEBUG_CMPXCHG */ -# define CMPXCHG_BUGCHECK_DECL -# define CMPXCHG_BUGCHECK(v) -#endif /* !CONFIG_IA64_DEBUG_CMPXCHG */ - #endif #ifdef __KERNEL__ -- cgit v0.10.2 From ef1f0982540e5f79c8bbf3675bbc0a9734dba3fc Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Wed, 11 Apr 2012 12:21:39 -0400 Subject: irq_work: fix compile failure on tile from missing include MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Building with IRQ_WORK configured results in kernel/irq_work.c: In function ‘irq_work_run’: kernel/irq_work.c:110: error: implicit declaration of function ‘irqs_disabled’ The appropriate header just needs to be included. Signed-off-by: Chris Metcalf Signed-off-by: Paul Gortmaker diff --git a/kernel/irq_work.c b/kernel/irq_work.c index 0c56d44..1588e3b 100644 --- a/kernel/irq_work.c +++ b/kernel/irq_work.c @@ -11,6 +11,7 @@ #include #include #include +#include #include /* -- cgit v0.10.2 From 1c07ae43bb7f01480c0aceec36d1f27dd6c598bf Mon Sep 17 00:00:00 2001 From: Daniel Walker Date: Wed, 11 Apr 2012 21:04:02 -0700 Subject: arm: msm: halibut: remove unneeded fixup This old fixup causes a build failure, so I remove it just like in trout. Signed-off-by: Daniel Walker Signed-off-by: David Brown diff --git a/arch/arm/mach-msm/board-halibut.c b/arch/arm/mach-msm/board-halibut.c index 3698a37..26aac36 100644 --- a/arch/arm/mach-msm/board-halibut.c +++ b/arch/arm/mach-msm/board-halibut.c @@ -86,9 +86,6 @@ static void __init halibut_init(void) static void __init halibut_fixup(struct tag *tags, char **cmdline, struct meminfo *mi) { - mi->nr_banks=1; - mi->bank[0].start = PHYS_OFFSET; - mi->bank[0].size = (101*1024*1024); } static void __init halibut_map_io(void) -- cgit v0.10.2 From 204241c27c8fa2186e6d656d587f941422fff1b9 Mon Sep 17 00:00:00 2001 From: Daniel Walker Date: Thu, 12 Apr 2012 08:45:37 -0700 Subject: arm: msm: trout: fix compile failure Fixes the following warnings, arch/arm/mach-msm/board-trout.c: In function 'trout_init': arch/arm/mach-msm/board-trout.c:71: error: 'system_rev' undeclared (first use in this function) arch/arm/mach-msm/board-trout.c:71: error: (Each undeclared identifier is reported only once arch/arm/mach-msm/board-trout.c:71: error: for each function it appears in.) and arch/arm/mach-msm/board-trout-panel.c: In function 'trout_init_panel': arch/arm/mach-msm/board-trout-panel.c:267: error: 'system_rev' undeclared (first use in this function) arch/arm/mach-msm/board-trout-panel.c:267: error: (Each undeclared identifier is reported only once arch/arm/mach-msm/board-trout-panel.c:267: error: for each function it appears in.) This came in with the following commit 9f97da78bf018206fb623cd351d454af2f105fe0 which removes asm/system.h Signed-off-by: Daniel Walker cc: David Howells cc: Bryan Huntsman cc: linux-arm-msm@vger.kernel.org cc: linux-arm-kernel@lists.infradead.org Signed-off-by: David Brown diff --git a/arch/arm/mach-msm/board-trout-panel.c b/arch/arm/mach-msm/board-trout-panel.c index 25105c1..89bf6b4 100644 --- a/arch/arm/mach-msm/board-trout-panel.c +++ b/arch/arm/mach-msm/board-trout-panel.c @@ -12,6 +12,7 @@ #include #include +#include #include #include diff --git a/arch/arm/mach-msm/board-trout.c b/arch/arm/mach-msm/board-trout.c index 5414f76..d4060a3 100644 --- a/arch/arm/mach-msm/board-trout.c +++ b/arch/arm/mach-msm/board-trout.c @@ -19,6 +19,7 @@ #include #include +#include #include #include #include -- cgit v0.10.2 From e89c0e4377303a101d1032bf1dde822218372f15 Mon Sep 17 00:00:00 2001 From: David Brown Date: Thu, 12 Apr 2012 11:36:50 -0700 Subject: video: msm: Fix section mismatches in mddi.c The change commit 461cbe77d0a4f887c33a3a95ea68a7daf23b4302 Author: Gregory Bean Date: Wed Jul 28 10:22:13 2010 -0700 video: msm: Fix section mismatch in mddi.c. fixes a section mismatch between the board file and the driver's probe function, however, it misses the additional mismatches between the probe function and some routines it calls. Fix these up as well. Signed-off-by: David Brown diff --git a/drivers/video/msm/mddi.c b/drivers/video/msm/mddi.c index 4527cbf..b061d70 100644 --- a/drivers/video/msm/mddi.c +++ b/drivers/video/msm/mddi.c @@ -420,7 +420,7 @@ static void mddi_resume(struct msm_mddi_client_data *cdata) mddi_set_auto_hibernate(&mddi->client_data, 1); } -static int __init mddi_get_client_caps(struct mddi_info *mddi) +static int __devinit mddi_get_client_caps(struct mddi_info *mddi) { int i, j; @@ -622,9 +622,9 @@ uint32_t mddi_remote_read(struct msm_mddi_client_data *cdata, uint32_t reg) static struct mddi_info mddi_info[2]; -static int __init mddi_clk_setup(struct platform_device *pdev, - struct mddi_info *mddi, - unsigned long clk_rate) +static int __devinit mddi_clk_setup(struct platform_device *pdev, + struct mddi_info *mddi, + unsigned long clk_rate) { int ret; -- cgit v0.10.2 From af33eadc73e4a5d35a966c1c7ffe28a8424c9d96 Mon Sep 17 00:00:00 2001 From: David Brown Date: Thu, 12 Apr 2012 11:36:50 -0700 Subject: ARM: msm: Fix section mismatches in proc_comm.c The change commit 4416e9eb0b4859b3d28016c5fd0a609bdcbc8a2a Author: Gregory Bean Date: Wed Jul 28 10:22:12 2010 -0700 arm: msm: Fix section mismatch in smd.c. fixes a section mismatch between the board file and the smd driver's probe function, however, it misses the additional mismatches between the probe function and some routines it calls. Fix these up as well. Signed-off-by: David Brown diff --git a/arch/arm/mach-msm/proc_comm.c b/arch/arm/mach-msm/proc_comm.c index 67e701c..9980dc7 100644 --- a/arch/arm/mach-msm/proc_comm.c +++ b/arch/arm/mach-msm/proc_comm.c @@ -121,7 +121,7 @@ int msm_proc_comm(unsigned cmd, unsigned *data1, unsigned *data2) * and unknown state. This function should be called early to * wait on the ARM9. */ -void __init proc_comm_boot_wait(void) +void __devinit proc_comm_boot_wait(void) { void __iomem *base = MSM_SHARED_RAM_BASE; -- cgit v0.10.2 From 03662e41c7cff64a776bfb1b3816de4be43de881 Mon Sep 17 00:00:00 2001 From: Tony Zelenoff Date: Wed, 11 Apr 2012 06:15:03 +0000 Subject: atl1: fix kernel panic in case of DMA errors Problem: There was two separate work_struct structures which share one handler. Unfortunately getting atl1_adapter structure from work_struct in case of DMA error was done from incorrect offset which cause kernel panics. Solution: The useless work_struct for DMA error removed and handler name changed to more generic one. Signed-off-by: Tony Zelenoff Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/atheros/atlx/atl1.c b/drivers/net/ethernet/atheros/atlx/atl1.c index 40ac414..c926857 100644 --- a/drivers/net/ethernet/atheros/atlx/atl1.c +++ b/drivers/net/ethernet/atheros/atlx/atl1.c @@ -2476,7 +2476,7 @@ static irqreturn_t atl1_intr(int irq, void *data) "pcie phy link down %x\n", status); if (netif_running(adapter->netdev)) { /* reset MAC */ iowrite32(0, adapter->hw.hw_addr + REG_IMR); - schedule_work(&adapter->pcie_dma_to_rst_task); + schedule_work(&adapter->reset_dev_task); return IRQ_HANDLED; } } @@ -2488,7 +2488,7 @@ static irqreturn_t atl1_intr(int irq, void *data) "pcie DMA r/w error (status = 0x%x)\n", status); iowrite32(0, adapter->hw.hw_addr + REG_IMR); - schedule_work(&adapter->pcie_dma_to_rst_task); + schedule_work(&adapter->reset_dev_task); return IRQ_HANDLED; } @@ -2633,10 +2633,10 @@ static void atl1_down(struct atl1_adapter *adapter) atl1_clean_rx_ring(adapter); } -static void atl1_tx_timeout_task(struct work_struct *work) +static void atl1_reset_dev_task(struct work_struct *work) { struct atl1_adapter *adapter = - container_of(work, struct atl1_adapter, tx_timeout_task); + container_of(work, struct atl1_adapter, reset_dev_task); struct net_device *netdev = adapter->netdev; netif_device_detach(netdev); @@ -3038,12 +3038,10 @@ static int __devinit atl1_probe(struct pci_dev *pdev, (unsigned long)adapter); adapter->phy_timer_pending = false; - INIT_WORK(&adapter->tx_timeout_task, atl1_tx_timeout_task); + INIT_WORK(&adapter->reset_dev_task, atl1_reset_dev_task); INIT_WORK(&adapter->link_chg_task, atlx_link_chg_task); - INIT_WORK(&adapter->pcie_dma_to_rst_task, atl1_tx_timeout_task); - err = register_netdev(netdev); if (err) goto err_common; diff --git a/drivers/net/ethernet/atheros/atlx/atl1.h b/drivers/net/ethernet/atheros/atlx/atl1.h index 109d6da..e04bf4d 100644 --- a/drivers/net/ethernet/atheros/atlx/atl1.h +++ b/drivers/net/ethernet/atheros/atlx/atl1.h @@ -758,9 +758,8 @@ struct atl1_adapter { u16 link_speed; u16 link_duplex; spinlock_t lock; - struct work_struct tx_timeout_task; + struct work_struct reset_dev_task; struct work_struct link_chg_task; - struct work_struct pcie_dma_to_rst_task; struct timer_list phy_config_timer; bool phy_timer_pending; diff --git a/drivers/net/ethernet/atheros/atlx/atlx.c b/drivers/net/ethernet/atheros/atlx/atlx.c index 3cd8837..c9e9dc5 100644 --- a/drivers/net/ethernet/atheros/atlx/atlx.c +++ b/drivers/net/ethernet/atheros/atlx/atlx.c @@ -194,7 +194,7 @@ static void atlx_tx_timeout(struct net_device *netdev) { struct atlx_adapter *adapter = netdev_priv(netdev); /* Do the reset outside of interrupt context */ - schedule_work(&adapter->tx_timeout_task); + schedule_work(&adapter->reset_dev_task); } /* -- cgit v0.10.2 From a8c9cb106fe79c28d6b7f1397652cadd228715ff Mon Sep 17 00:00:00 2001 From: Jason Wang Date: Wed, 11 Apr 2012 22:10:54 +0000 Subject: 8139cp: set intr mask after its handler is registered We set intr mask before its handler is registered, this does not work well when 8139cp is sharing irq line with other devices. As the irq could be enabled by the device before 8139cp's hander is registered which may lead unhandled irq. Fix this by introducing an helper cp_irq_enable() and call it after request_irq(). Signed-off-by: Jason Wang Reviewed-by: Flavio Leitner Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/realtek/8139cp.c b/drivers/net/ethernet/realtek/8139cp.c index abc7907..b3287c0 100644 --- a/drivers/net/ethernet/realtek/8139cp.c +++ b/drivers/net/ethernet/realtek/8139cp.c @@ -958,6 +958,11 @@ static inline void cp_start_hw (struct cp_private *cp) cpw8(Cmd, RxOn | TxOn); } +static void cp_enable_irq(struct cp_private *cp) +{ + cpw16_f(IntrMask, cp_intr_mask); +} + static void cp_init_hw (struct cp_private *cp) { struct net_device *dev = cp->dev; @@ -997,8 +1002,6 @@ static void cp_init_hw (struct cp_private *cp) cpw16(MultiIntr, 0); - cpw16_f(IntrMask, cp_intr_mask); - cpw8_f(Cfg9346, Cfg9346_Lock); } @@ -1130,6 +1133,8 @@ static int cp_open (struct net_device *dev) if (rc) goto err_out_hw; + cp_enable_irq(cp); + netif_carrier_off(dev); mii_check_media(&cp->mii_if, netif_msg_link(cp), true); netif_start_queue(dev); @@ -2031,6 +2036,7 @@ static int cp_resume (struct pci_dev *pdev) /* FIXME: sh*t may happen if the Rx ring buffer is depleted */ cp_init_rings_index (cp); cp_init_hw (cp); + cp_enable_irq(cp); netif_start_queue (dev); spin_lock_irqsave (&cp->lock, flags); -- cgit v0.10.2 From e847469bf77a1d339274074ed068d461f0c872bc Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 13 Apr 2012 13:49:47 -0400 Subject: lockd: fix the endianness bug comparing be32 values for < is not doing the right thing... Signed-off-by: Al Viro diff --git a/fs/lockd/clnt4xdr.c b/fs/lockd/clnt4xdr.c index 3ddcbb1..13ad153 100644 --- a/fs/lockd/clnt4xdr.c +++ b/fs/lockd/clnt4xdr.c @@ -241,7 +241,7 @@ static int decode_nlm4_stat(struct xdr_stream *xdr, __be32 *stat) p = xdr_inline_decode(xdr, 4); if (unlikely(p == NULL)) goto out_overflow; - if (unlikely(*p > nlm4_failed)) + if (unlikely(ntohl(*p) > ntohl(nlm4_failed))) goto out_bad_xdr; *stat = *p; return 0; diff --git a/fs/lockd/clntxdr.c b/fs/lockd/clntxdr.c index 3d35e3e..d269ada 100644 --- a/fs/lockd/clntxdr.c +++ b/fs/lockd/clntxdr.c @@ -236,7 +236,7 @@ static int decode_nlm_stat(struct xdr_stream *xdr, p = xdr_inline_decode(xdr, 4); if (unlikely(p == NULL)) goto out_overflow; - if (unlikely(*p > nlm_lck_denied_grace_period)) + if (unlikely(ntohl(*p) > ntohl(nlm_lck_denied_grace_period))) goto out_enum; *stat = *p; return 0; -- cgit v0.10.2 From 59a54f3082b9847c1240e24879750e3a03f96754 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Thu, 12 Apr 2012 01:11:12 +0000 Subject: drivers/net/ethernet/xilinx/axi ethernet: Correct Copyright Also fix MAINTAINERS file to reflect autorship. Daniel and Ariane changed coding style but not any functional changes in the driver itself. Signed-off-by: Michal Simek Signed-off-by: David S. Miller diff --git a/MAINTAINERS b/MAINTAINERS index 32671e0..7cef7be 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7577,8 +7577,8 @@ F: Documentation/filesystems/xfs.txt F: fs/xfs/ XILINX AXI ETHERNET DRIVER -M: Ariane Keller -M: Daniel Borkmann +M: Anirudha Sarangi +M: John Linn S: Maintained F: drivers/net/ethernet/xilinx/xilinx_axienet* diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet.h b/drivers/net/ethernet/xilinx/xilinx_axienet.h index cc83af0..44b8d2b 100644 --- a/drivers/net/ethernet/xilinx/xilinx_axienet.h +++ b/drivers/net/ethernet/xilinx/xilinx_axienet.h @@ -2,9 +2,7 @@ * Definitions for Xilinx Axi Ethernet device driver. * * Copyright (c) 2009 Secret Lab Technologies, Ltd. - * Copyright (c) 2010 Xilinx, Inc. All rights reserved. - * Copyright (c) 2012 Daniel Borkmann, - * Copyright (c) 2012 Ariane Keller, + * Copyright (c) 2010 - 2012 Xilinx, Inc. All rights reserved. */ #ifndef XILINX_AXIENET_H diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c index 2fcbeba..9c365e1 100644 --- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c +++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c @@ -4,9 +4,9 @@ * Copyright (c) 2008 Nissin Systems Co., Ltd., Yoshio Kashiwagi * Copyright (c) 2005-2008 DLA Systems, David H. Lynch Jr. * Copyright (c) 2008-2009 Secret Lab Technologies Ltd. - * Copyright (c) 2010 Xilinx, Inc. All rights reserved. - * Copyright (c) 2012 Daniel Borkmann, - * Copyright (c) 2012 Ariane Keller, + * Copyright (c) 2010 - 2011 Michal Simek + * Copyright (c) 2010 - 2011 PetaLogix + * Copyright (c) 2010 - 2012 Xilinx, Inc. All rights reserved. * * This is a driver for the Xilinx Axi Ethernet which is used in the Virtex6 * and Spartan6. diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_mdio.c b/drivers/net/ethernet/xilinx/xilinx_axienet_mdio.c index d70b6e7..e90e1f4 100644 --- a/drivers/net/ethernet/xilinx/xilinx_axienet_mdio.c +++ b/drivers/net/ethernet/xilinx/xilinx_axienet_mdio.c @@ -2,9 +2,9 @@ * MDIO bus driver for the Xilinx Axi Ethernet device * * Copyright (c) 2009 Secret Lab Technologies, Ltd. - * Copyright (c) 2010 Xilinx, Inc. All rights reserved. - * Copyright (c) 2012 Daniel Borkmann, - * Copyright (c) 2012 Ariane Keller, + * Copyright (c) 2010 - 2011 Michal Simek + * Copyright (c) 2010 - 2011 PetaLogix + * Copyright (c) 2010 - 2012 Xilinx, Inc. All rights reserved. */ #include -- cgit v0.10.2 From 51c61a2838c33dab7b6659b9a3e008bb1b40bc9b Mon Sep 17 00:00:00 2001 From: Matt Renzelmann Date: Fri, 13 Apr 2012 07:59:40 +0000 Subject: ks8851: Fix missing mutex_lock/unlock Move the ks8851_rdreg16 call above the call to request_irq and cache the result for subsequent repeated use. A spurious interrupt may otherwise cause a crash. Thanks to Stephen Boyd, Flavio Leitner, and Ben Hutchings for feedback. Signed-off-by: Matt Renzelmann Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/micrel/ks8851.c b/drivers/net/ethernet/micrel/ks8851.c index c722aa6..e5dc075 100644 --- a/drivers/net/ethernet/micrel/ks8851.c +++ b/drivers/net/ethernet/micrel/ks8851.c @@ -1418,6 +1418,7 @@ static int __devinit ks8851_probe(struct spi_device *spi) struct net_device *ndev; struct ks8851_net *ks; int ret; + unsigned cider; ndev = alloc_etherdev(sizeof(struct ks8851_net)); if (!ndev) @@ -1484,8 +1485,8 @@ static int __devinit ks8851_probe(struct spi_device *spi) ks8851_soft_reset(ks, GRR_GSR); /* simple check for a valid chip being connected to the bus */ - - if ((ks8851_rdreg16(ks, KS_CIDER) & ~CIDER_REV_MASK) != CIDER_ID) { + cider = ks8851_rdreg16(ks, KS_CIDER); + if ((cider & ~CIDER_REV_MASK) != CIDER_ID) { dev_err(&spi->dev, "failed to read device ID\n"); ret = -ENODEV; goto err_id; @@ -1516,8 +1517,7 @@ static int __devinit ks8851_probe(struct spi_device *spi) } netdev_info(ndev, "revision %d, MAC %pM, IRQ %d, %s EEPROM\n", - CIDER_REV_GET(ks8851_rdreg16(ks, KS_CIDER)), - ndev->dev_addr, ndev->irq, + CIDER_REV_GET(cider), ndev->dev_addr, ndev->irq, ks->rc_ccr & CCR_EEPROM ? "has" : "no"); return 0; -- cgit v0.10.2 From effcc625eb4ab3b10b4744237fd37e8f7dcd6511 Mon Sep 17 00:00:00 2001 From: Amitkumar Karwar Date: Wed, 28 Mar 2012 11:38:01 -0700 Subject: libertas: fix signedness bug in lbs_auth_to_authtype() Return type for lbs_auth_to_authtype() is changed from "u8" to "int" to return negative error code correctly. Also an error check is added in connect handler for invalid auth type. Reported-by: Dan Carpenter Signed-off-by: Amitkumar Karwar Signed-off-by: Kiran Divekar Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/libertas/cfg.c b/drivers/net/wireless/libertas/cfg.c index 3fa1ece..2fa879b 100644 --- a/drivers/net/wireless/libertas/cfg.c +++ b/drivers/net/wireless/libertas/cfg.c @@ -103,7 +103,7 @@ static const u32 cipher_suites[] = { * Convert NL80211's auth_type to the one from Libertas, see chapter 5.9.1 * in the firmware spec */ -static u8 lbs_auth_to_authtype(enum nl80211_auth_type auth_type) +static int lbs_auth_to_authtype(enum nl80211_auth_type auth_type) { int ret = -ENOTSUPP; @@ -1411,7 +1411,12 @@ static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev, goto done; } - lbs_set_authtype(priv, sme); + ret = lbs_set_authtype(priv, sme); + if (ret == -ENOTSUPP) { + wiphy_err(wiphy, "unsupported authtype 0x%x\n", sme->auth_type); + goto done; + } + lbs_set_radio(priv, preamble, 1); /* Do the actual association */ -- cgit v0.10.2 From badc4f07622f0f7093a201638f45e85765f1b5e4 Mon Sep 17 00:00:00 2001 From: Arend van Spriel Date: Wed, 11 Apr 2012 11:52:51 +0200 Subject: brcm80211: smac: resume transmit fifo upon receiving frames There have been reports about not being able to use access-points on channel 12 and 13 or having connectivity issues when these channels were part of the selected regulatory domain. Upon switching to these channels the brcmsmac driver suspends the transmit dma fifos. This patch resumes them upon handing over the first received beacon to mac80211. This patch is to be applied to the stable tree for kernel versions 3.2 and 3.3. Cc: stable@vger.kernel.org Tested-by: Francesco Saverio Schiavarelli Reviewed-by: Pieter-Paul Giesberts Reviewed-by: Brett Rudley Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/brcm80211/brcmsmac/main.c b/drivers/net/wireless/brcm80211/brcmsmac/main.c index 231ddf4..7083db7 100644 --- a/drivers/net/wireless/brcm80211/brcmsmac/main.c +++ b/drivers/net/wireless/brcm80211/brcmsmac/main.c @@ -7614,6 +7614,7 @@ brcms_c_recvctl(struct brcms_c_info *wlc, struct d11rxhdr *rxh, { int len_mpdu; struct ieee80211_rx_status rx_status; + struct ieee80211_hdr *hdr; memset(&rx_status, 0, sizeof(rx_status)); prep_mac80211_status(wlc, rxh, p, &rx_status); @@ -7623,6 +7624,13 @@ brcms_c_recvctl(struct brcms_c_info *wlc, struct d11rxhdr *rxh, skb_pull(p, D11_PHY_HDR_LEN); __skb_trim(p, len_mpdu); + /* unmute transmit */ + if (wlc->hw->suspended_fifos) { + hdr = (struct ieee80211_hdr *)p->data; + if (ieee80211_is_beacon(hdr->frame_control)) + brcms_b_mute(wlc->hw, false); + } + memcpy(IEEE80211_SKB_RXCB(p), &rx_status, sizeof(rx_status)); ieee80211_rx_irqsafe(wlc->pub->ieee_hw, p); } -- cgit v0.10.2 From e55a4046dab28c440c96890bdddcf02dc8981f2d Mon Sep 17 00:00:00 2001 From: Lukasz Kucharczyk Date: Wed, 11 Apr 2012 14:55:10 +0200 Subject: cfg80211: fix interface combinations check. Signed-off-by: Lukasz Kucharczyk Cc: stable@vger.kernel.org Signed-off-by: John W. Linville diff --git a/net/wireless/util.c b/net/wireless/util.c index 1b7a08d..957f2562 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -989,7 +989,7 @@ int cfg80211_can_change_interface(struct cfg80211_registered_device *rdev, if (rdev->wiphy.software_iftypes & BIT(iftype)) continue; for (j = 0; j < c->n_limits; j++) { - if (!(limits[j].types & iftype)) + if (!(limits[j].types & BIT(iftype))) continue; if (limits[j].max < num[iftype]) goto cont; -- cgit v0.10.2 From 32b92f4f3f261697a49f944e31920dbcbbd4ad01 Mon Sep 17 00:00:00 2001 From: Jonathan Bither Date: Thu, 12 Apr 2012 06:13:33 -0400 Subject: ath5k: fix undefined 'THIS_MODULE' When cross compiling ath5k for a Mips machine with kernel 3.2.14 the compilation fails with "/ath5k/ahb.c:231:12: error: 'THIS_MODULE' undeclared here (not in a function)" Fix the build by including Signed-off-by: Jonathan Bither Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath5k/ahb.c b/drivers/net/wireless/ath/ath5k/ahb.c index 8faa129..47b6c35 100644 --- a/drivers/net/wireless/ath/ath5k/ahb.c +++ b/drivers/net/wireless/ath/ath5k/ahb.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include "ath5k.h" #include "debug.h" -- cgit v0.10.2 From 2db0d2ba97801fb57c91e99b9e22b2a24c32d3d7 Mon Sep 17 00:00:00 2001 From: Jonathan Bither Date: Thu, 12 Apr 2012 07:03:09 -0400 Subject: ath5k: unmap io memory on probe failure Signed-off-by: Jonathan Bither Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath5k/ahb.c b/drivers/net/wireless/ath/ath5k/ahb.c index 47b6c35..8c50d9d 100644 --- a/drivers/net/wireless/ath/ath5k/ahb.c +++ b/drivers/net/wireless/ath/ath5k/ahb.c @@ -120,7 +120,7 @@ static int ath_ahb_probe(struct platform_device *pdev) if (res == NULL) { dev_err(&pdev->dev, "no IRQ resource found\n"); ret = -ENXIO; - goto err_out; + goto err_iounmap; } irq = res->start; @@ -129,7 +129,7 @@ static int ath_ahb_probe(struct platform_device *pdev) if (hw == NULL) { dev_err(&pdev->dev, "no memory for ieee80211_hw\n"); ret = -ENOMEM; - goto err_out; + goto err_iounmap; } ah = hw->priv; @@ -186,6 +186,8 @@ static int ath_ahb_probe(struct platform_device *pdev) err_free_hw: ieee80211_free_hw(hw); platform_set_drvdata(pdev, NULL); + err_iounmap: + iounmap(mem); err_out: return ret; } -- cgit v0.10.2 From 75600abf1991657580233570400009e85f861787 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Thu, 12 Apr 2012 20:36:31 +0200 Subject: ath9k: wake up the hardware from full sleep when idle is turned off The hardware needs a reset to recover from full sleep. Issue this reset directly in the ath9k_config call that turns off idle, otherwise tx remains dead until the first channel change after the idle state change Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 2504ab0..798ea57 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -1548,6 +1548,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); struct ieee80211_conf *conf = &hw->conf; + bool reset_channel = false; ath9k_ps_wakeup(sc); mutex_lock(&sc->mutex); @@ -1556,6 +1557,12 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) sc->ps_idle = !!(conf->flags & IEEE80211_CONF_IDLE); if (sc->ps_idle) ath_cancel_work(sc); + else + /* + * The chip needs a reset to properly wake up from + * full sleep + */ + reset_channel = ah->chip_fullsleep; } /* @@ -1584,7 +1591,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) } } - if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { + if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) || reset_channel) { struct ieee80211_channel *curchan = hw->conf.channel; int pos = curchan->hw_value; int old_pos = -1; -- cgit v0.10.2 From 428ca8a7065354877db63ceabfc493107686eebe Mon Sep 17 00:00:00 2001 From: Bing Zhao Date: Thu, 12 Apr 2012 19:00:35 -0700 Subject: mwifiex: update pcie8766 scratch register addresses The scratch register addresses have been changed for newer chips. Since the old chip was never shipped and it will not be supported any more, just update register addresses to support the new chips. Cc: # 3.2.y, 3.3.y Signed-off-by: Bing Zhao Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/mwifiex/pcie.h b/drivers/net/wireless/mwifiex/pcie.h index 445ff21..2f218f9 100644 --- a/drivers/net/wireless/mwifiex/pcie.h +++ b/drivers/net/wireless/mwifiex/pcie.h @@ -48,15 +48,15 @@ #define PCIE_HOST_INT_STATUS_MASK 0xC3C #define PCIE_SCRATCH_2_REG 0xC40 #define PCIE_SCRATCH_3_REG 0xC44 -#define PCIE_SCRATCH_4_REG 0xCC0 -#define PCIE_SCRATCH_5_REG 0xCC4 -#define PCIE_SCRATCH_6_REG 0xCC8 -#define PCIE_SCRATCH_7_REG 0xCCC -#define PCIE_SCRATCH_8_REG 0xCD0 -#define PCIE_SCRATCH_9_REG 0xCD4 -#define PCIE_SCRATCH_10_REG 0xCD8 -#define PCIE_SCRATCH_11_REG 0xCDC -#define PCIE_SCRATCH_12_REG 0xCE0 +#define PCIE_SCRATCH_4_REG 0xCD0 +#define PCIE_SCRATCH_5_REG 0xCD4 +#define PCIE_SCRATCH_6_REG 0xCD8 +#define PCIE_SCRATCH_7_REG 0xCDC +#define PCIE_SCRATCH_8_REG 0xCE0 +#define PCIE_SCRATCH_9_REG 0xCE4 +#define PCIE_SCRATCH_10_REG 0xCE8 +#define PCIE_SCRATCH_11_REG 0xCEC +#define PCIE_SCRATCH_12_REG 0xCF0 #define CPU_INTR_DNLD_RDY BIT(0) #define CPU_INTR_DOOR_BELL BIT(1) -- cgit v0.10.2 From 3c5e979bd037888dd7d722da22da4b43659af485 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Thu, 12 Apr 2012 05:54:09 +0000 Subject: net: smsc911x: fix skb handling in receive path The SMSC911x driver resets the ->head, ->data and ->tail pointers in the skb on the reset path in order to avoid buffer overflow due to packet padding performed by the hardware. This patch fixes the receive path so that the skb pointers are fixed up after the data has been read from the device, The error path is also fixed to use number of words consistently and prevent erroneous FIFO fastforwarding when skipping over bad data. Signed-off-by: Will Deacon Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c index 4a69710..5aa2dbe 100644 --- a/drivers/net/ethernet/smsc/smsc911x.c +++ b/drivers/net/ethernet/smsc/smsc911x.c @@ -1166,10 +1166,8 @@ smsc911x_rx_counterrors(struct net_device *dev, unsigned int rxstat) /* Quickly dumps bad packets */ static void -smsc911x_rx_fastforward(struct smsc911x_data *pdata, unsigned int pktbytes) +smsc911x_rx_fastforward(struct smsc911x_data *pdata, unsigned int pktwords) { - unsigned int pktwords = (pktbytes + NET_IP_ALIGN + 3) >> 2; - if (likely(pktwords >= 4)) { unsigned int timeout = 500; unsigned int val; @@ -1233,7 +1231,7 @@ static int smsc911x_poll(struct napi_struct *napi, int budget) continue; } - skb = netdev_alloc_skb(dev, pktlength + NET_IP_ALIGN); + skb = netdev_alloc_skb(dev, pktwords << 2); if (unlikely(!skb)) { SMSC_WARN(pdata, rx_err, "Unable to allocate skb for rx packet"); @@ -1243,14 +1241,12 @@ static int smsc911x_poll(struct napi_struct *napi, int budget) break; } - skb->data = skb->head; - skb_reset_tail_pointer(skb); + pdata->ops->rx_readfifo(pdata, + (unsigned int *)skb->data, pktwords); /* Align IP on 16B boundary */ skb_reserve(skb, NET_IP_ALIGN); skb_put(skb, pktlength - 4); - pdata->ops->rx_readfifo(pdata, - (unsigned int *)skb->head, pktwords); skb->protocol = eth_type_trans(skb, dev); skb_checksum_none_assert(skb); netif_receive_skb(skb); @@ -1565,7 +1561,7 @@ static int smsc911x_open(struct net_device *dev) smsc911x_reg_write(pdata, FIFO_INT, temp); /* set RX Data offset to 2 bytes for alignment */ - smsc911x_reg_write(pdata, RX_CFG, (2 << 8)); + smsc911x_reg_write(pdata, RX_CFG, (NET_IP_ALIGN << 8)); /* enable NAPI polling before enabling RX interrupts */ napi_enable(&pdata->napi); -- cgit v0.10.2 From 9e0daff30fd7ecf698e5d20b0fa7f851e427cca5 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Fri, 13 Apr 2012 11:56:22 -0700 Subject: sparc64: Fix bootup crash on sun4v. The DS driver registers as a subsys_initcall() but this can be too early, in particular this risks registering before we've had a chance to allocate and setup module_kset in kernel/params.c which is performed also as a subsyts_initcall(). Register DS using device_initcall() insteal. Signed-off-by: David S. Miller Cc: stable@vger.kernel.org diff --git a/arch/sparc/kernel/ds.c b/arch/sparc/kernel/ds.c index fea13c7..b93c2c9 100644 --- a/arch/sparc/kernel/ds.c +++ b/arch/sparc/kernel/ds.c @@ -1264,4 +1264,4 @@ static int __init ds_init(void) return vio_register_driver(&ds_driver); } -subsys_initcall(ds_init); +fs_initcall(ds_init); -- cgit v0.10.2 From 3d3eeb2ef26112a200785e5fca58ec58dd33bf1e Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Fri, 13 Apr 2012 03:35:13 +0000 Subject: sparc64: Eliminate obsolete __handle_softirq() function The invocation of softirq is now handled by irq_exit(), so there is no need for sparc64 to invoke it on the trap-return path. In fact, doing so is a bug because if the trap occurred in the idle loop, this invocation can result in lockdep-RCU failures. The problem is that RCU ignores idle CPUs, and the sparc64 trap-return path to the softirq handlers fails to tell RCU that the CPU must be considered non-idle while those handlers are executing. This means that RCU is ignoring any RCU read-side critical sections in those handlers, which in turn means that RCU-protected data can be yanked out from under those read-side critical sections. The shiny new lockdep-RCU ability to detect RCU read-side critical sections that RCU is ignoring located this problem. The fix is straightforward: Make sparc64 stop manually invoking the softirq handlers. Reported-by: Meelis Roos Suggested-by: David Miller Signed-off-by: Paul E. McKenney Tested-by: Meelis Roos Cc: stable@vger.kernel.org Signed-off-by: David S. Miller diff --git a/arch/sparc/kernel/rtrap_64.S b/arch/sparc/kernel/rtrap_64.S index 77f1b95..9171fc2 100644 --- a/arch/sparc/kernel/rtrap_64.S +++ b/arch/sparc/kernel/rtrap_64.S @@ -20,11 +20,6 @@ .text .align 32 -__handle_softirq: - call do_softirq - nop - ba,a,pt %xcc, __handle_softirq_continue - nop __handle_preemption: call schedule wrpr %g0, RTRAP_PSTATE, %pstate @@ -89,9 +84,7 @@ rtrap: cmp %l1, 0 /* mm/ultra.S:xcall_report_regs KNOWS about this load. */ - bne,pn %icc, __handle_softirq ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1 -__handle_softirq_continue: rtrap_xcall: sethi %hi(0xf << 20), %l4 and %l1, %l4, %l4 -- cgit v0.10.2 From 2d59dcfb54ade45cacc59a6e7bd96b8c19088c3d Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Fri, 13 Apr 2012 13:32:30 -0700 Subject: cpufreq: OMAP: fix build errors: depends on ARCH_OMAP2PLUS The OMAP driver needs a 'depends on ARCH_OMAP2PLUS' since it only builds for OMAP2+ platforms. This 'depends on' was in the original patch from Russell King, but was erroneously removed by me when making this option user-selectable in commit b09db45c (cpufreq: OMAP driver depends CPUfreq tables.) This patch remedies that. Apologies to Russell King for breaking his originally working patch. Also, thanks to Grazvydas Ignotas for reporting the same problem. Cc: Russell King Cc: Grazvydas Ignotas Signed-off-by: Kevin Hilman Signed-off-by: Linus Torvalds diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm index ffbb446..5961e64 100644 --- a/drivers/cpufreq/Kconfig.arm +++ b/drivers/cpufreq/Kconfig.arm @@ -4,6 +4,7 @@ config ARM_OMAP2PLUS_CPUFREQ bool "TI OMAP2+" + depends on ARCH_OMAP2PLUS default ARCH_OMAP2PLUS select CPU_FREQ_TABLE -- cgit v0.10.2 From 6e48b550d1f5f1919e6500547ae14a73fbf66c7b Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 13 Apr 2012 09:52:59 +0100 Subject: tracing: Fix build breakage without CONFIG_PERF_EVENTS (again) Today's -next fails to link for me: kernel/built-in.o:(.data+0x178e50): undefined reference to `perf_ftrace_event_register' It looks like multiple fixes have been merged for the issue fixed by commit fa73dc9 (tracing: Fix build breakage without CONFIG_PERF_EVENTS) though I can't identify the other changes that have gone in at the minute, it's possible that the changes which caused the breakage fixed by the previous commit got dropped but the fix made it in. Link: http://lkml.kernel.org/r/1334307179-21255-1-git-send-email-broonie@opensource.wolfsonmicro.com Cc: Frederic Weisbecker Cc: Ingo Molnar Signed-off-by: Mark Brown Signed-off-by: Steven Rostedt diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 95059f0..f95d65d 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -836,11 +836,11 @@ extern const char *__stop___trace_bprintk_fmt[]; filter) #include "trace_entries.h" -#ifdef CONFIG_FUNCTION_TRACER +#if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_FUNCTION_TRACER) int perf_ftrace_event_register(struct ftrace_event_call *call, enum trace_reg type, void *data); #else #define perf_ftrace_event_register NULL -#endif /* CONFIG_FUNCTION_TRACER */ +#endif #endif /* _LINUX_KERNEL_TRACE_H */ -- cgit v0.10.2 From 92fe173391b3e0d0a7212fa8b9d72c8d61f31c26 Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Thu, 12 Apr 2012 06:27:03 +0000 Subject: e1000e: issues in Sx on 82577/8/9 A workaround was previously put in the driver to reset the device when transitioning to Sx in order to activate the changed settings of the PHY OEM bits (Low Power Link Up, or LPLU, and GbE disable configuration) for 82577/8/9 devices. After further review, it was found such a reset can cause the 82579 to confuse which version of 82579 it actually is and broke LPLU on all 82577/8/9 devices. The workaround during an S0->Sx transition on 82579 (instead of resetting the PHY) is to restart auto-negotiation after the OEM bits are configured; the restart of auto-negotiation activates the new OEM bits as does the reset. With 82577/8, the reset is changed to a generic reset which fixes the LPLU bits getting set wrong. Signed-off-by: Bruce Allan Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c index 64c7644..b461c24 100644 --- a/drivers/net/ethernet/intel/e1000e/ich8lan.c +++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c @@ -1310,10 +1310,6 @@ static s32 e1000_oem_bits_config_ich8lan(struct e1000_hw *hw, bool d0_state) if (mac_reg & E1000_PHY_CTRL_D0A_LPLU) oem_reg |= HV_OEM_BITS_LPLU; - - /* Set Restart auto-neg to activate the bits */ - if (!hw->phy.ops.check_reset_block(hw)) - oem_reg |= HV_OEM_BITS_RESTART_AN; } else { if (mac_reg & (E1000_PHY_CTRL_GBE_DISABLE | E1000_PHY_CTRL_NOND0A_GBE_DISABLE)) @@ -1324,6 +1320,11 @@ static s32 e1000_oem_bits_config_ich8lan(struct e1000_hw *hw, bool d0_state) oem_reg |= HV_OEM_BITS_LPLU; } + /* Set Restart auto-neg to activate the bits */ + if ((d0_state || (hw->mac.type != e1000_pchlan)) && + !hw->phy.ops.check_reset_block(hw)) + oem_reg |= HV_OEM_BITS_RESTART_AN; + ret_val = hw->phy.ops.write_reg_locked(hw, HV_OEM_BITS, oem_reg); release: @@ -3682,7 +3683,11 @@ void e1000_suspend_workarounds_ich8lan(struct e1000_hw *hw) if (hw->mac.type >= e1000_pchlan) { e1000_oem_bits_config_ich8lan(hw, false); - e1000_phy_hw_reset_ich8lan(hw); + + /* Reset PHY to activate OEM bits on 82577/8 */ + if (hw->mac.type == e1000_pchlan) + e1000e_phy_hw_reset_generic(hw); + ret_val = hw->phy.ops.acquire(hw); if (ret_val) return; -- cgit v0.10.2 From c509e754af96882eb46130e215cc4aa8f763d4ac Mon Sep 17 00:00:00 2001 From: Don Skidmore Date: Thu, 5 Apr 2012 08:12:05 +0000 Subject: ixgbe: fix WoL issue with fiber There are times we turn of the laser before shutdown. This is a bad thing if we want to wake on lan to work so now we make sure the laser is on before shutdown if we support WoL. Signed-off-by: Don Skidmore Tested-by: Stephen Ko Signed-off-by: Jeff Kirsher diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 3e26b1f..dac7c01 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -4893,6 +4893,16 @@ static int __ixgbe_shutdown(struct pci_dev *pdev, bool *enable_wake) if (wufc) { ixgbe_set_rx_mode(netdev); + /* + * enable the optics for both mult-speed fiber and + * 82599 SFP+ fiber as we can WoL. + */ + if (hw->mac.ops.enable_tx_laser && + (hw->phy.multispeed_fiber || + (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_fiber && + hw->mac.type == ixgbe_mac_82599EB))) + hw->mac.ops.enable_tx_laser(hw); + /* turn on all-multi mode if wake on multicast is enabled */ if (wufc & IXGBE_WUFC_MC) { fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); -- cgit v0.10.2 From 3cd21f6162e7703adc13c5030f316db9ec6bf5cf Mon Sep 17 00:00:00 2001 From: Maurus Cuelenaere Date: Sat, 14 Apr 2012 07:42:04 -0700 Subject: ARM: SAMSUNG: make SAMSUNG_PM_DEBUG select DEBUG_LL When selecting SAMSUNG_PM_DEBUG, it complains about a missing printascii() function if you do not select DEBUG_LL, so make the former select the latter. Signed-off-by: Maurus Cuelenaere Acked-by: Heiko Stuebner Signed-off-by: Kukjin Kim diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig index 71553f4..a0ffc77d 100644 --- a/arch/arm/plat-samsung/Kconfig +++ b/arch/arm/plat-samsung/Kconfig @@ -302,6 +302,7 @@ comment "Power management" config SAMSUNG_PM_DEBUG bool "S3C2410 PM Suspend debug" depends on PM + select DEBUG_LL help Say Y here if you want verbose debugging from the PM Suspend and Resume code. See -- cgit v0.10.2 From f441f8a0a180827e3f7bd705aed9cffba62cebc2 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Mon, 9 Apr 2012 21:10:32 -0700 Subject: ARM: EXYNOS: fix regulator name for NURI board Regulator names should not contain slash to avoid issues with debugfs. Signed-off-by: Marek Szyprowski Signed-off-by: Kyungmin Park Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-exynos/mach-nuri.c b/arch/arm/mach-exynos/mach-nuri.c index b3982c8..f92ec88 100644 --- a/arch/arm/mach-exynos/mach-nuri.c +++ b/arch/arm/mach-exynos/mach-nuri.c @@ -571,7 +571,7 @@ static struct regulator_init_data __initdata max8997_ldo7_data = { static struct regulator_init_data __initdata max8997_ldo8_data = { .constraints = { - .name = "VUSB/VDAC_3.3V_C210", + .name = "VUSB+VDAC_3.3V_C210", .min_uV = 3300000, .max_uV = 3300000, .valid_ops_mask = REGULATOR_CHANGE_STATUS, -- cgit v0.10.2 From 3d3231b1c986aa3ee1d94ffe36082faf45f0d96b Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Mon, 9 Apr 2012 21:10:32 -0700 Subject: ARM: EXYNOS: set fix xusbxti clock for NURI and Universal210 boards On some versions of NURI and UniversalC210 boards, camera clocks are routed directly to xusbxti clock source. This patch sets the correct value for this clock to let usb and camera sensors to work correctly and avoid division by zero on driver's probe. Signed-off-by: Marek Szyprowski Signed-off-by: Kyungmin Park Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-exynos/mach-nuri.c b/arch/arm/mach-exynos/mach-nuri.c index f92ec88..dd3ec8e 100644 --- a/arch/arm/mach-exynos/mach-nuri.c +++ b/arch/arm/mach-exynos/mach-nuri.c @@ -1347,6 +1347,7 @@ static struct platform_device *nuri_devices[] __initdata = { static void __init nuri_map_io(void) { + clk_xusbxti.rate = 24000000; exynos_init_io(NULL, 0); s3c24xx_init_clocks(24000000); s3c24xx_init_uarts(nuri_uartcfgs, ARRAY_SIZE(nuri_uartcfgs)); @@ -1379,7 +1380,6 @@ static void __init nuri_machine_init(void) nuri_camera_init(); nuri_ehci_init(); - clk_xusbxti.rate = 24000000; /* Last */ platform_add_devices(nuri_devices, ARRAY_SIZE(nuri_devices)); diff --git a/arch/arm/mach-exynos/mach-universal_c210.c b/arch/arm/mach-exynos/mach-universal_c210.c index 6bb9dbd..7ebf79c 100644 --- a/arch/arm/mach-exynos/mach-universal_c210.c +++ b/arch/arm/mach-exynos/mach-universal_c210.c @@ -29,6 +29,7 @@ #include #include +#include #include #include #include @@ -1057,6 +1058,7 @@ static struct platform_device *universal_devices[] __initdata = { static void __init universal_map_io(void) { + clk_xusbxti.rate = 24000000; exynos_init_io(NULL, 0); s3c24xx_init_clocks(24000000); s3c24xx_init_uarts(universal_uartcfgs, ARRAY_SIZE(universal_uartcfgs)); -- cgit v0.10.2 From 5262c543317cf362fe7223563609efaeb555f716 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Mon, 9 Apr 2012 21:10:32 -0700 Subject: ARM: EXYNOS: Remove broken config values for touchscren for NURI board The atmel_mxt_ts driver has been extended to support more 'configuration objects' in commit 81c88a711 ("Input: atmel_mxt_ts - update object list"), what broke the configuration values for NURI board. These values are optional anyway, so remove them to get the driver working correctly. Signed-off-by: Marek Szyprowski Signed-off-by: Kyungmin Park Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-exynos/mach-nuri.c b/arch/arm/mach-exynos/mach-nuri.c index dd3ec8e..b4f1f90 100644 --- a/arch/arm/mach-exynos/mach-nuri.c +++ b/arch/arm/mach-exynos/mach-nuri.c @@ -307,49 +307,7 @@ static struct i2c_board_info i2c1_devs[] __initdata = { }; /* TSP */ -static u8 mxt_init_vals[] = { - /* MXT_GEN_COMMAND(6) */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - /* MXT_GEN_POWER(7) */ - 0x20, 0xff, 0x32, - /* MXT_GEN_ACQUIRE(8) */ - 0x0a, 0x00, 0x05, 0x00, 0x00, 0x00, 0x09, 0x23, - /* MXT_TOUCH_MULTI(9) */ - 0x00, 0x00, 0x00, 0x13, 0x0b, 0x00, 0x00, 0x00, 0x02, 0x00, - 0x00, 0x01, 0x01, 0x0e, 0x0a, 0x0a, 0x0a, 0x0a, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, - /* MXT_TOUCH_KEYARRAY(15) */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, - 0x00, - /* MXT_SPT_GPIOPWM(19) */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - /* MXT_PROCI_GRIPFACE(20) */ - 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x28, 0x04, - 0x0f, 0x0a, - /* MXT_PROCG_NOISE(22) */ - 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x23, 0x00, - 0x00, 0x05, 0x0f, 0x19, 0x23, 0x2d, 0x03, - /* MXT_TOUCH_PROXIMITY(23) */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, - /* MXT_PROCI_ONETOUCH(24) */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - /* MXT_SPT_SELFTEST(25) */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, - /* MXT_PROCI_TWOTOUCH(27) */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - /* MXT_SPT_CTECONFIG(28) */ - 0x00, 0x00, 0x02, 0x08, 0x10, 0x00, -}; - static struct mxt_platform_data mxt_platform_data = { - .config = mxt_init_vals, - .config_length = ARRAY_SIZE(mxt_init_vals), - .x_line = 18, .y_line = 11, .x_size = 1024, -- cgit v0.10.2 From 2084c24a81413b75bc97e4bee56b32ffece70460 Mon Sep 17 00:00:00 2001 From: Lubos Lunak Date: Wed, 21 Mar 2012 14:08:24 +0100 Subject: do not export kernel's NULL #define to userspace MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit GCC's NULL is actually __null, which allows detecting some questionable NULL usage and warn about it. Moreover each platform/compiler should have its own stddef.h anyway (which is different from linux/stddef.h). So there's no good reason to leak kernel's NULL to userspace and override what the compiler provides. Signed-off-by: Luboš Luňák Acked-by: Arnd Bergmann Signed-off-by: Linus Torvalds diff --git a/include/linux/stddef.h b/include/linux/stddef.h index 6a40c76..1747b67 100644 --- a/include/linux/stddef.h +++ b/include/linux/stddef.h @@ -3,14 +3,10 @@ #include +#ifdef __KERNEL__ + #undef NULL -#if defined(__cplusplus) -#define NULL 0 -#else #define NULL ((void *)0) -#endif - -#ifdef __KERNEL__ enum { false = 0, -- cgit v0.10.2 From 5ad14306a3f468df61e1739f9f252663f18f1702 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Sat, 14 Apr 2012 07:53:51 -0700 Subject: ARM: EXYNOS: Fix Kconfig dependencies for device tree enabled machine files Add config dependency for Exynos4 and Exynos5 device tree enabled machine files on config options ARCH_EXYNOS4 and ARCH_EXYNOS5 respectively. Enabling machine support without proper ARCH support enabled is incorrect. Signed-off-by: Sachin Kamat Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig index 0491cee..e81c35f 100644 --- a/arch/arm/mach-exynos/Kconfig +++ b/arch/arm/mach-exynos/Kconfig @@ -368,6 +368,7 @@ comment "Flattened Device Tree based board for EXYNOS SoCs" config MACH_EXYNOS4_DT bool "Samsung Exynos4 Machine using device tree" + depends on ARCH_EXYNOS4 select CPU_EXYNOS4210 select USE_OF select ARM_AMBA @@ -380,6 +381,7 @@ config MACH_EXYNOS4_DT config MACH_EXYNOS5_DT bool "SAMSUNG EXYNOS5 Machine using device tree" + depends on ARCH_EXYNOS5 select SOC_EXYNOS5250 select USE_OF select ARM_AMBA -- cgit v0.10.2 From 2a5204fed0f313f9b55a7b4d5f48ca484446d095 Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Wed, 11 Apr 2012 12:39:51 +0200 Subject: perf tools: Fix parsers' rules to dependencies Currently the parsers objects (bison/flex related) are each time perf is built. No matter the generated files are already in place, the parser generation is executed every time. Changing the rules to have proper flex/bison objects generation dependencies. The parsers code is not rebuilt until the flex/bison source files are touched. Also when flex/bison source is changed, only dependent objects are rebuilt. Signed-off-by: Jiri Olsa Cc: Corey Ashford Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1334140791-3024-1-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/perf/Makefile b/tools/perf/Makefile index a20d0c5..03059e7 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -237,21 +237,20 @@ export PERL_PATH FLEX = $(CROSS_COMPILE)flex BISON= $(CROSS_COMPILE)bison -event-parser: - $(QUIET_BISON)$(BISON) -v util/parse-events.y -d -o $(OUTPUT)util/parse-events-bison.c +$(OUTPUT)util/parse-events-flex.c: util/parse-events.l $(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/parse-events-flex.h -t util/parse-events.l > $(OUTPUT)util/parse-events-flex.c -$(OUTPUT)util/parse-events-flex.c: event-parser -$(OUTPUT)util/parse-events-bison.c: event-parser +$(OUTPUT)util/parse-events-bison.c: util/parse-events.y + $(QUIET_BISON)$(BISON) -v util/parse-events.y -d -o $(OUTPUT)util/parse-events-bison.c -pmu-parser: - $(QUIET_BISON)$(BISON) -v util/pmu.y -d -o $(OUTPUT)util/pmu-bison.c +$(OUTPUT)util/pmu-flex.c: util/pmu.l $(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/pmu-flex.h -t util/pmu.l > $(OUTPUT)util/pmu-flex.c -$(OUTPUT)util/pmu-flex.c: pmu-parser -$(OUTPUT)util/pmu-bison.c: pmu-parser +$(OUTPUT)util/pmu-bison.c: util/pmu.y + $(QUIET_BISON)$(BISON) -v util/pmu.y -d -o $(OUTPUT)util/pmu-bison.c -$(OUTPUT)util/parse-events.o: event-parser pmu-parser +$(OUTPUT)util/parse-events.o: $(OUTPUT)util/parse-events-flex.c $(OUTPUT)util/parse-events-bison.c +$(OUTPUT)util/pmu.o: $(OUTPUT)util/pmu-flex.c $(OUTPUT)util/pmu-bison.c LIB_FILE=$(OUTPUT)libperf.a @@ -852,8 +851,6 @@ help: @echo ' html - make html documentation' @echo ' info - make GNU info documentation (access with info )' @echo ' pdf - make pdf documentation' - @echo ' event-parser - make event parser code' - @echo ' pmu-parser - make pmu format parser code' @echo ' TAGS - use etags to make tag information for source browsing' @echo ' tags - use ctags to make tag information for source browsing' @echo ' cscope - use cscope to make interactive browsing database' -- cgit v0.10.2 From 77394ad6e465ee3cc3d3cf448c8500c57ced60bf Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Mon, 9 Apr 2012 14:11:14 +0900 Subject: perf tools: Ignore auto-generated bison/flex files The commit 65f3e56e0c81 ("perf tools: Remove auto-generated bison/flex files") removed those files from git, so they'll be listed on untracked files after building perf. Fix it. Signed-off-by: Namhyung Kim Cc: Ingo Molnar Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1333948274-20043-1-git-send-email-namhyung.kim@lge.com Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/perf/.gitignore b/tools/perf/.gitignore index 416684b..26b823b 100644 --- a/tools/perf/.gitignore +++ b/tools/perf/.gitignore @@ -19,3 +19,5 @@ TAGS cscope* config.mak config.mak.autogen +*-bison.* +*-flex.* -- cgit v0.10.2 From e3b6193378e8549d04849eda496129f94406ed36 Mon Sep 17 00:00:00 2001 From: Chanho Park Date: Mon, 2 Apr 2012 15:28:29 +0900 Subject: perf archive: Correct cutting of symbolic link If a '$PERF_BUILDID_DIR'(typically $HOME/.debug) is a symbolic link directory, cutting of the path will fail. Here is an example where a buildid directory is a symbolic link. / # ls -al /root lrwxrwxrwx 1 root root 13 Mar 26 2012 /root -> opt/home/root / # cd ~ /opt/home/root # perf record -a -g sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.322 MB perf.data (~14057 samples) ] /opt/home/root # perf archive tar: Removing leading `/' from member names Now please run: $ tar xvf perf.data.tar.bz2 -C ~/.debug wherever you need to run 'perf report' on. /opt/home/root # mkdir temp /opt/home/root # tar xf perf.data.tar.bz2 -C ./temp /opt/home/root # find ./temp -name "*kernel*" ./temp/opt/home/root/.debug/[kernel.kallsyms] -> If successfully cut off the path, [kernel.kallsyms] is located in top of the archived file. This patch enables to cut correctly even if the buildid directory is a symbolic link. Signed-off-by: Chanho Park Signed-off-by: Kyungmin Park Cc: Ingo Molnar Cc: Kyungmin Park Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1333348109-12598-1-git-send-email-chanho61.park@samsung.com Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/perf/perf-archive.sh b/tools/perf/perf-archive.sh index 677e59d..95b6f8b 100644 --- a/tools/perf/perf-archive.sh +++ b/tools/perf/perf-archive.sh @@ -29,13 +29,14 @@ if [ ! -s $BUILDIDS ] ; then fi MANIFEST=$(mktemp /tmp/perf-archive-manifest.XXXXXX) +PERF_BUILDID_LINKDIR=$(readlink -f $PERF_BUILDID_DIR)/ cut -d ' ' -f 1 $BUILDIDS | \ while read build_id ; do linkname=$PERF_BUILDID_DIR.build-id/${build_id:0:2}/${build_id:2} filename=$(readlink -f $linkname) echo ${linkname#$PERF_BUILDID_DIR} >> $MANIFEST - echo ${filename#$PERF_BUILDID_DIR} >> $MANIFEST + echo ${filename#$PERF_BUILDID_LINKDIR} >> $MANIFEST done tar cfj $PERF_DATA.tar.bz2 -C $PERF_BUILDID_DIR -T $MANIFEST -- cgit v0.10.2 From 8a9a0ea6032186e3030419262678d652b88bf6a8 Mon Sep 17 00:00:00 2001 From: Davide Ciminaghi Date: Fri, 13 Apr 2012 04:48:25 +0000 Subject: net/ethernet: ks8851_mll fix rx frame buffer overflow At the beginning of ks_rcv(), a for loop retrieves the header information relevant to all the frames stored in the mac's internal buffers. The number of pending frames is stored as an 8 bits field in KS_RXFCTR. If interrupts are disabled long enough to allow for more than 32 frames to accumulate in the MAC's internal buffers, a buffer overflow occurs. This patch fixes the problem by making the driver's frame_head_info buffer big enough. Well actually, since the chip appears to have 12K of internal rx buffers and the shortest ethernet frame should be 64 bytes long, maybe the limit could be set to 12*1024/64 = 192 frames, but 255 should be safer. Signed-off-by: Davide Ciminaghi Signed-off-by: Raffaele Recalcati Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/micrel/ks8851_mll.c b/drivers/net/ethernet/micrel/ks8851_mll.c index b8104d9..5ffde23 100644 --- a/drivers/net/ethernet/micrel/ks8851_mll.c +++ b/drivers/net/ethernet/micrel/ks8851_mll.c @@ -40,7 +40,7 @@ #define DRV_NAME "ks8851_mll" static u8 KS_DEFAULT_MAC_ADDRESS[] = { 0x00, 0x10, 0xA1, 0x86, 0x95, 0x11 }; -#define MAX_RECV_FRAMES 32 +#define MAX_RECV_FRAMES 255 #define MAX_BUF_SIZE 2048 #define TX_BUF_SIZE 2000 #define RX_BUF_SIZE 2000 -- cgit v0.10.2 From eb03f28002c3dc96cbb8d3869df2d8aef3ef3b01 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Thu, 12 Apr 2012 10:17:28 -0500 Subject: ARM: dts: remove blank interrupt-parent properties These were incorrectly introduced and can cause problems for of_irq_init. The correct way to define a root controller is no interrupt-parent set at all or the interrupt-parent is set to the root controller itself when inherited from a parent node. Signed-off-by: Rob Herring Tested-by: Lee Jones Signed-off-by: Olof Johansson diff --git a/arch/arm/boot/dts/at91sam9g20.dtsi b/arch/arm/boot/dts/at91sam9g20.dtsi index 799ad18..773ef48 100644 --- a/arch/arm/boot/dts/at91sam9g20.dtsi +++ b/arch/arm/boot/dts/at91sam9g20.dtsi @@ -55,7 +55,6 @@ #interrupt-cells = <2>; compatible = "atmel,at91rm9200-aic"; interrupt-controller; - interrupt-parent; reg = <0xfffff000 0x200>; }; diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi index 9e6eb6e..c804214 100644 --- a/arch/arm/boot/dts/at91sam9g45.dtsi +++ b/arch/arm/boot/dts/at91sam9g45.dtsi @@ -56,7 +56,6 @@ #interrupt-cells = <2>; compatible = "atmel,at91rm9200-aic"; interrupt-controller; - interrupt-parent; reg = <0xfffff000 0x200>; }; diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi index 70ab3a4..dd4ed74 100644 --- a/arch/arm/boot/dts/at91sam9x5.dtsi +++ b/arch/arm/boot/dts/at91sam9x5.dtsi @@ -54,7 +54,6 @@ #interrupt-cells = <2>; compatible = "atmel,at91rm9200-aic"; interrupt-controller; - interrupt-parent; reg = <0xfffff000 0x200>; }; diff --git a/arch/arm/boot/dts/db8500.dtsi b/arch/arm/boot/dts/db8500.dtsi index d73dce6..14bc307 100644 --- a/arch/arm/boot/dts/db8500.dtsi +++ b/arch/arm/boot/dts/db8500.dtsi @@ -24,7 +24,6 @@ #interrupt-cells = <3>; #address-cells = <1>; interrupt-controller; - interrupt-parent; reg = <0xa0411000 0x1000>, <0xa0410100 0x100>; }; diff --git a/arch/arm/boot/dts/highbank.dts b/arch/arm/boot/dts/highbank.dts index 37c0ff9c..83e7229 100644 --- a/arch/arm/boot/dts/highbank.dts +++ b/arch/arm/boot/dts/highbank.dts @@ -89,7 +89,6 @@ #size-cells = <0>; #address-cells = <1>; interrupt-controller; - interrupt-parent; reg = <0xfff11000 0x1000>, <0xfff10100 0x100>; }; -- cgit v0.10.2 From 47d9e44d1dbabc53500e86d5597f2737a40f1f42 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Fri, 13 Apr 2012 13:52:15 -0700 Subject: ARM: OMAP: clock: cleanup CPUfreq leftovers, fix build errors Now that we have OPP layer, and OMAP CPUfreq driver is using it, we no longer need/use the clock framework code for filling up CPUfreq tables. Remove it. Removing this code also eliminates build errors when CPU_FREQ_TABLE support is not enabled. Thanks to Russell King for pointing out the parts I missed under plat-omap in the original version and also pointing out the build errors when CPUFREQ_TABLE support was not enabled. Cc: Russell King Signed-off-by: Kevin Hilman Acked-by: Paul Walmsley Acked-by: Tony Lindgren Signed-off-by: Olof Johansson diff --git a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c index 7072e0d..3d9d746 100644 --- a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c +++ b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c @@ -165,83 +165,3 @@ int omap2_select_table_rate(struct clk *clk, unsigned long rate) return 0; } - -#ifdef CONFIG_CPU_FREQ -/* - * Walk PRCM rate table and fillout cpufreq freq_table - * XXX This should be replaced by an OPP layer in the near future - */ -static struct cpufreq_frequency_table *freq_table; - -void omap2_clk_init_cpufreq_table(struct cpufreq_frequency_table **table) -{ - const struct prcm_config *prcm; - int i = 0; - int tbl_sz = 0; - - if (!cpu_is_omap24xx()) - return; - - for (prcm = rate_table; prcm->mpu_speed; prcm++) { - if (!(prcm->flags & cpu_mask)) - continue; - if (prcm->xtal_speed != sclk->rate) - continue; - - /* don't put bypass rates in table */ - if (prcm->dpll_speed == prcm->xtal_speed) - continue; - - tbl_sz++; - } - - /* - * XXX Ensure that we're doing what CPUFreq expects for this error - * case and the following one - */ - if (tbl_sz == 0) { - pr_warning("%s: no matching entries in rate_table\n", - __func__); - return; - } - - /* Include the CPUFREQ_TABLE_END terminator entry */ - tbl_sz++; - - freq_table = kzalloc(sizeof(struct cpufreq_frequency_table) * tbl_sz, - GFP_ATOMIC); - if (!freq_table) { - pr_err("%s: could not kzalloc frequency table\n", __func__); - return; - } - - for (prcm = rate_table; prcm->mpu_speed; prcm++) { - if (!(prcm->flags & cpu_mask)) - continue; - if (prcm->xtal_speed != sclk->rate) - continue; - - /* don't put bypass rates in table */ - if (prcm->dpll_speed == prcm->xtal_speed) - continue; - - freq_table[i].index = i; - freq_table[i].frequency = prcm->mpu_speed / 1000; - i++; - } - - freq_table[i].index = i; - freq_table[i].frequency = CPUFREQ_TABLE_END; - - *table = &freq_table[0]; -} - -void omap2_clk_exit_cpufreq_table(struct cpufreq_frequency_table **table) -{ - if (!cpu_is_omap24xx()) - return; - - kfree(freq_table); -} - -#endif diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c index f57ed5b..d9f4931 100644 --- a/arch/arm/mach-omap2/clock.c +++ b/arch/arm/mach-omap2/clock.c @@ -536,10 +536,5 @@ struct clk_functions omap2_clk_functions = { .clk_set_rate = omap2_clk_set_rate, .clk_set_parent = omap2_clk_set_parent, .clk_disable_unused = omap2_clk_disable_unused, -#ifdef CONFIG_CPU_FREQ - /* These will be removed when the OPP code is integrated */ - .clk_init_cpufreq_table = omap2_clk_init_cpufreq_table, - .clk_exit_cpufreq_table = omap2_clk_exit_cpufreq_table, -#endif }; diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h index b8c2a68..a1bb23a 100644 --- a/arch/arm/mach-omap2/clock.h +++ b/arch/arm/mach-omap2/clock.h @@ -146,14 +146,6 @@ extern const struct clksel_rate gpt_sys_rates[]; extern const struct clksel_rate gfx_l3_rates[]; extern const struct clksel_rate dsp_ick_rates[]; -#if defined(CONFIG_ARCH_OMAP2) && defined(CONFIG_CPU_FREQ) -extern void omap2_clk_init_cpufreq_table(struct cpufreq_frequency_table **table); -extern void omap2_clk_exit_cpufreq_table(struct cpufreq_frequency_table **table); -#else -#define omap2_clk_init_cpufreq_table 0 -#define omap2_clk_exit_cpufreq_table 0 -#endif - extern const struct clkops clkops_omap2_iclk_dflt_wait; extern const struct clkops clkops_omap2_iclk_dflt; extern const struct clkops clkops_omap2_iclk_idle_only; diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c index 8506cbb..62ec5c4 100644 --- a/arch/arm/plat-omap/clock.c +++ b/arch/arm/plat-omap/clock.c @@ -398,32 +398,6 @@ struct clk dummy_ck = { .ops = &clkops_null, }; -#ifdef CONFIG_CPU_FREQ -void clk_init_cpufreq_table(struct cpufreq_frequency_table **table) -{ - unsigned long flags; - - if (!arch_clock || !arch_clock->clk_init_cpufreq_table) - return; - - spin_lock_irqsave(&clockfw_lock, flags); - arch_clock->clk_init_cpufreq_table(table); - spin_unlock_irqrestore(&clockfw_lock, flags); -} - -void clk_exit_cpufreq_table(struct cpufreq_frequency_table **table) -{ - unsigned long flags; - - if (!arch_clock || !arch_clock->clk_exit_cpufreq_table) - return; - - spin_lock_irqsave(&clockfw_lock, flags); - arch_clock->clk_exit_cpufreq_table(table); - spin_unlock_irqrestore(&clockfw_lock, flags); -} -#endif - /* * */ diff --git a/arch/arm/plat-omap/include/plat/clock.h b/arch/arm/plat-omap/include/plat/clock.h index 240a7b9..d0ef57c 100644 --- a/arch/arm/plat-omap/include/plat/clock.h +++ b/arch/arm/plat-omap/include/plat/clock.h @@ -272,8 +272,6 @@ struct clk { #endif }; -struct cpufreq_frequency_table; - struct clk_functions { int (*clk_enable)(struct clk *clk); void (*clk_disable)(struct clk *clk); @@ -283,10 +281,6 @@ struct clk_functions { void (*clk_allow_idle)(struct clk *clk); void (*clk_deny_idle)(struct clk *clk); void (*clk_disable_unused)(struct clk *clk); -#ifdef CONFIG_CPU_FREQ - void (*clk_init_cpufreq_table)(struct cpufreq_frequency_table **); - void (*clk_exit_cpufreq_table)(struct cpufreq_frequency_table **); -#endif }; extern int mpurate; @@ -301,10 +295,6 @@ extern void recalculate_root_clocks(void); extern unsigned long followparent_recalc(struct clk *clk); extern void clk_enable_init_clocks(void); unsigned long omap_fixed_divisor_recalc(struct clk *clk); -#ifdef CONFIG_CPU_FREQ -extern void clk_init_cpufreq_table(struct cpufreq_frequency_table **table); -extern void clk_exit_cpufreq_table(struct cpufreq_frequency_table **table); -#endif extern struct clk *omap_clk_get_by_name(const char *name); extern int omap_clk_enable_autoidle_all(void); extern int omap_clk_disable_autoidle_all(void); -- cgit v0.10.2 From 1a87228f5f1d316002c7c161316f5524592be766 Mon Sep 17 00:00:00 2001 From: David Gibson Date: Thu, 12 Apr 2012 15:36:34 +1000 Subject: virtio_balloon: Fix endian bug Although virtio config space fields are usually in guest-native endian, the spec for the virtio balloon device explicitly states that both fields in its config space are little-endian. However, the current virtio_balloon driver does not have a suitable endian swap for the 'num_pages' field, although it does have one for the 'actual' field. This patch corrects the bug, adding sparse annotation while we're at it. Signed-off-by: David Gibson Signed-off-by: Michael S. Tsirkin diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index 05f0a80..9e95ca6 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -234,11 +234,14 @@ static void virtballoon_changed(struct virtio_device *vdev) static inline s64 towards_target(struct virtio_balloon *vb) { - u32 v; + __le32 v; + s64 target; + vb->vdev->config->get(vb->vdev, offsetof(struct virtio_balloon_config, num_pages), &v, sizeof(v)); - return (s64)v - vb->num_pages; + target = le32_to_cpu(v); + return target - vb->num_pages; } static void update_balloon_size(struct virtio_balloon *vb) -- cgit v0.10.2 From 3ccc9372ed0fab33d20f10be3c1efd5776ff5913 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Thu, 12 Apr 2012 16:38:00 +0300 Subject: virtio_balloon: fix handling of PAGE_SIZE != 4k As reported by David Gibson, current code handles PAGE_SIZE != 4k completely wrong which can lead to guest memory corruption errors: - page_to_balloon_pfn is wrong: e.g. on system with 64K page size it gives the same pfn value for 16 different pages. - we also need to convert back to linux pfns when we free. - for each linux page we need to tell host about multiple balloon pages, but code only adds one pfn to the array. This patch fixes all that, tested with a 64k ppc64 kernel. Reported-by: David Gibson Tested-by: David Gibson Signed-off-by: Michael S. Tsirkin diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index 9e95ca6..c2d05a8 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -28,6 +28,13 @@ #include #include +/* + * Balloon device works in 4K page units. So each page is pointed to by + * multiple balloon pages. All memory counters in this driver are in balloon + * page units. + */ +#define VIRTIO_BALLOON_PAGES_PER_PAGE (PAGE_SIZE >> VIRTIO_BALLOON_PFN_SHIFT) + struct virtio_balloon { struct virtio_device *vdev; @@ -42,8 +49,13 @@ struct virtio_balloon /* Waiting for host to ack the pages we released. */ struct completion acked; - /* The pages we've told the Host we're not using. */ + /* Number of balloon pages we've told the Host we're not using. */ unsigned int num_pages; + /* + * The pages we've told the Host we're not using. + * Each page on this list adds VIRTIO_BALLOON_PAGES_PER_PAGE + * to num_pages above. + */ struct list_head pages; /* The array of pfns we tell the Host about. */ @@ -66,7 +78,13 @@ static u32 page_to_balloon_pfn(struct page *page) BUILD_BUG_ON(PAGE_SHIFT < VIRTIO_BALLOON_PFN_SHIFT); /* Convert pfn from Linux page size to balloon page size. */ - return pfn >> (PAGE_SHIFT - VIRTIO_BALLOON_PFN_SHIFT); + return pfn * VIRTIO_BALLOON_PAGES_PER_PAGE; +} + +static struct page *balloon_pfn_to_page(u32 pfn) +{ + BUG_ON(pfn % VIRTIO_BALLOON_PAGES_PER_PAGE); + return pfn_to_page(pfn / VIRTIO_BALLOON_PAGES_PER_PAGE); } static void balloon_ack(struct virtqueue *vq) @@ -96,12 +114,23 @@ static void tell_host(struct virtio_balloon *vb, struct virtqueue *vq) wait_for_completion(&vb->acked); } +static void set_page_pfns(u32 pfns[], struct page *page) +{ + unsigned int i; + + /* Set balloon pfns pointing at this page. + * Note that the first pfn points at start of the page. */ + for (i = 0; i < VIRTIO_BALLOON_PAGES_PER_PAGE; i++) + pfns[i] = page_to_balloon_pfn(page) + i; +} + static void fill_balloon(struct virtio_balloon *vb, size_t num) { /* We can only do one array worth at a time. */ num = min(num, ARRAY_SIZE(vb->pfns)); - for (vb->num_pfns = 0; vb->num_pfns < num; vb->num_pfns++) { + for (vb->num_pfns = 0; vb->num_pfns < num; + vb->num_pfns += VIRTIO_BALLOON_PAGES_PER_PAGE) { struct page *page = alloc_page(GFP_HIGHUSER | __GFP_NORETRY | __GFP_NOMEMALLOC | __GFP_NOWARN); if (!page) { @@ -113,9 +142,9 @@ static void fill_balloon(struct virtio_balloon *vb, size_t num) msleep(200); break; } - vb->pfns[vb->num_pfns] = page_to_balloon_pfn(page); + set_page_pfns(vb->pfns + vb->num_pfns, page); + vb->num_pages += VIRTIO_BALLOON_PAGES_PER_PAGE; totalram_pages--; - vb->num_pages++; list_add(&page->lru, &vb->pages); } @@ -130,8 +159,9 @@ static void release_pages_by_pfn(const u32 pfns[], unsigned int num) { unsigned int i; - for (i = 0; i < num; i++) { - __free_page(pfn_to_page(pfns[i])); + /* Find pfns pointing at start of each page, get pages and free them. */ + for (i = 0; i < num; i += VIRTIO_BALLOON_PAGES_PER_PAGE) { + __free_page(balloon_pfn_to_page(pfns[i])); totalram_pages++; } } @@ -143,11 +173,12 @@ static void leak_balloon(struct virtio_balloon *vb, size_t num) /* We can only do one array worth at a time. */ num = min(num, ARRAY_SIZE(vb->pfns)); - for (vb->num_pfns = 0; vb->num_pfns < num; vb->num_pfns++) { + for (vb->num_pfns = 0; vb->num_pfns < num; + vb->num_pfns += VIRTIO_BALLOON_PAGES_PER_PAGE) { page = list_first_entry(&vb->pages, struct page, lru); list_del(&page->lru); - vb->pfns[vb->num_pfns] = page_to_balloon_pfn(page); - vb->num_pages--; + set_page_pfns(vb->pfns + vb->num_pfns, page); + vb->num_pages -= VIRTIO_BALLOON_PAGES_PER_PAGE; } /* -- cgit v0.10.2 From 919f797a4c9c22ff5ec059744dba364dc600ece2 Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Sat, 14 Apr 2012 23:01:28 -0400 Subject: SCSI: Fix error handling when no ULD is attached Commit 18a4d0a22ed6 ("[SCSI] Handle disk devices which can not process medium access commands") introduced a bug in which we would attempt to dereference the scsi driver even when the device had no ULD attached. Ensure that a driver is registered and make the driver accessor function more resilient to errors during device discovery. Reported-by: Elric Fu Reported-by: Bart Van Assche Signed-off-by: Martin K. Petersen Signed-off-by: Linus Torvalds diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 2cfcbff..386f0c5 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -835,7 +835,7 @@ static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, unsigned char *cmnd, scsi_eh_restore_cmnd(scmd, &ses); - if (sdrv->eh_action) + if (sdrv && sdrv->eh_action) rtn = sdrv->eh_action(scmd, cmnd, cmnd_size, rtn); return rtn; diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h index 377df4a..1e11985 100644 --- a/include/scsi/scsi_cmnd.h +++ b/include/scsi/scsi_cmnd.h @@ -134,6 +134,9 @@ struct scsi_cmnd { static inline struct scsi_driver *scsi_cmd_to_driver(struct scsi_cmnd *cmd) { + if (!cmd->request->rq_disk) + return NULL; + return *(struct scsi_driver **)cmd->request->rq_disk->private_data; } -- cgit v0.10.2 From ebfc5b802fa76baeb4371311ff9fc27a2258d90d Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sun, 15 Apr 2012 21:40:40 +0200 Subject: PCI: Fix regression in pci_restore_state(), v3 Commit 26f41062f28d ("PCI: check for pci bar restore completion and retry") attempted to address problems with PCI BAR restoration on systems where FLR had not been completed before pci_restore_state() was called, but it did that in an utterly wrong way. First off, instead of retrying the writes for the BAR registers only, it did that for all of the PCI config space of the device, including the status register (whose value after the write quite obviously need not be the same as the written one). Second, it added arbitrary delay to pci_restore_state() even for systems where the PCI config space restoration was successful at first attempt. Finally, the mdelay(10) it added to every iteration of the writing loop was way too much of a delay for any reasonable device. All of this actually caused resume failures for some devices on Mikko's system. To fix the regression, make pci_restore_state() only retry the writes for BAR registers and only wait if the first read from the register doesn't return the written value. Additionaly, make it wait for 1 ms, instead of 10 ms, after every failing attempt to write into config space. Reported-by: Mikko Vinni Signed-off-by: Rafael J. Wysocki Signed-off-by: Linus Torvalds diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 8156744..d20f133 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -967,16 +967,47 @@ pci_save_state(struct pci_dev *dev) return 0; } +static void pci_restore_config_dword(struct pci_dev *pdev, int offset, + u32 saved_val, int retry) +{ + u32 val; + + pci_read_config_dword(pdev, offset, &val); + if (val == saved_val) + return; + + for (;;) { + dev_dbg(&pdev->dev, "restoring config space at offset " + "%#x (was %#x, writing %#x)\n", offset, val, saved_val); + pci_write_config_dword(pdev, offset, saved_val); + if (retry-- <= 0) + return; + + pci_read_config_dword(pdev, offset, &val); + if (val == saved_val) + return; + + mdelay(1); + } +} + +static void pci_restore_config_space(struct pci_dev *pdev, int start, int end, + int retry) +{ + int index; + + for (index = end; index >= start; index--) + pci_restore_config_dword(pdev, 4 * index, + pdev->saved_config_space[index], + retry); +} + /** * pci_restore_state - Restore the saved state of a PCI device * @dev: - PCI device that we're dealing with */ void pci_restore_state(struct pci_dev *dev) { - int i; - u32 val; - int tries; - if (!dev->state_saved) return; @@ -984,24 +1015,14 @@ void pci_restore_state(struct pci_dev *dev) pci_restore_pcie_state(dev); pci_restore_ats_state(dev); + pci_restore_config_space(dev, 10, 15, 0); /* * The Base Address register should be programmed before the command * register(s) */ - for (i = 15; i >= 0; i--) { - pci_read_config_dword(dev, i * 4, &val); - tries = 10; - while (tries && val != dev->saved_config_space[i]) { - dev_dbg(&dev->dev, "restoring config " - "space at offset %#x (was %#x, writing %#x)\n", - i, val, (int)dev->saved_config_space[i]); - pci_write_config_dword(dev,i * 4, - dev->saved_config_space[i]); - pci_read_config_dword(dev, i * 4, &val); - mdelay(10); - tries--; - } - } + pci_restore_config_space(dev, 4, 9, 10); + pci_restore_config_space(dev, 0, 3, 0); + pci_restore_pcix_state(dev); pci_restore_msi_state(dev); pci_restore_iov_state(dev); -- cgit v0.10.2 From 9f85550347f51c79a917b2aec04c90691c11e20a Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 10 Apr 2012 12:37:42 +0100 Subject: ARM: 7359/2: smp_twd: Only wait for reprogramming on active cpus During booting of cpu1, there is a short window where cpu1 is online, but not active where cpu1 is occupied by waiting to become active. If cpu0 then decides to schedule something on cpu1 and wait for it to complete, before cpu0 has set cpu1 active, we have a deadlock. Typically it's this CPU frequency transition that happens at this time, so let's just not wait for it to happen, it will happen whenever the CPU eventually comes online instead. Cc: Peter Zijlstra Cc: stable@kernel.org Signed-off-by: Jonas Aaberg Reviewed-by: Rickard Andersson Signed-off-by: Linus Walleij Signed-off-by: Russell King diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c index fef42b2..5b150af 100644 --- a/arch/arm/kernel/smp_twd.c +++ b/arch/arm/kernel/smp_twd.c @@ -118,10 +118,14 @@ static int twd_cpufreq_transition(struct notifier_block *nb, * The twd clock events must be reprogrammed to account for the new * frequency. The timer is local to a cpu, so cross-call to the * changing cpu. + * + * Only wait for it to finish, if the cpu is active to avoid + * deadlock when cpu1 is spinning on while(!cpu_active(cpu1)) during + * booting of that cpu. */ if (state == CPUFREQ_POSTCHANGE || state == CPUFREQ_RESUMECHANGE) smp_call_function_single(freqs->cpu, twd_update_frequency, - NULL, 1); + NULL, cpu_active(freqs->cpu)); return NOTIFY_OK; } -- cgit v0.10.2 From e5ab85800820edd907d3f43f285e1232f84d5a41 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Thu, 12 Apr 2012 17:15:08 +0100 Subject: ARM: 7382/1: mm: truncate memory banks to fit in 4GB space for classic MMU If a bank of memory spanning the 4GB boundary is added on a !CONFIG_LPAE kernel then we will hang early during boot since the memory bank will have wrapped around to zero. This patch truncates memory banks for !LPAE configurations when the end address is not representable in 32 bits. Acked-by: Nicolas Pitre Signed-off-by: Will Deacon Signed-off-by: Russell King diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index b914113..ebfac78 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -523,7 +523,21 @@ int __init arm_add_memory(phys_addr_t start, unsigned long size) */ size -= start & ~PAGE_MASK; bank->start = PAGE_ALIGN(start); - bank->size = size & PAGE_MASK; + +#ifndef CONFIG_LPAE + if (bank->start + size < bank->start) { + printk(KERN_CRIT "Truncating memory at 0x%08llx to fit in " + "32-bit physical address space\n", (long long)start); + /* + * To ensure bank->start + bank->size is representable in + * 32 bits, we use ULONG_MAX as the upper limit rather than 4GB. + * This means we lose a page after masking. + */ + size = ULONG_MAX - bank->start; + } +#endif + + bank->size = size & PAGE_MASK; /* * Check whether this memory region has non-zero size or -- cgit v0.10.2 From 078c04545ba56da21567728a909a496df5ff730d Mon Sep 17 00:00:00 2001 From: Jonathan Austin Date: Thu, 12 Apr 2012 17:45:25 +0100 Subject: ARM: 7384/1: ThumbEE: Disable userspace TEEHBR access for !CONFIG_ARM_THUMBEE Currently when ThumbEE is not enabled (!CONFIG_ARM_THUMBEE) the ThumbEE register states are not saved/restored at context switch. The default state of the ThumbEE Ctrl register (TEECR) allows userspace accesses to the ThumbEE Base Handler register (TEEHBR). This can cause unexpected behaviour when people use ThumbEE on !CONFIG_ARM_THUMBEE kernels, as well as allowing covert communication - eg between userspace tasks running inside chroot jails. This patch sets up TEECR in order to prevent user-space access to TEEHBR when !CONFIG_ARM_THUMBEE. In this case, tasks are sent SIGILL if they try to access TEEHBR. Cc: stable@vger.kernel.org Reviewed-by: Will Deacon Signed-off-by: Jonathan Austin Signed-off-by: Russell King diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S index f1c8486..c2e2b66 100644 --- a/arch/arm/mm/proc-v7.S +++ b/arch/arm/mm/proc-v7.S @@ -255,6 +255,18 @@ __v7_setup: mcr p15, 0, r5, c10, c2, 0 @ write PRRR mcr p15, 0, r6, c10, c2, 1 @ write NMRR #endif +#ifndef CONFIG_ARM_THUMBEE + mrc p15, 0, r0, c0, c1, 0 @ read ID_PFR0 for ThumbEE + and r0, r0, #(0xf << 12) @ ThumbEE enabled field + teq r0, #(1 << 12) @ check if ThumbEE is present + bne 1f + mov r5, #0 + mcr p14, 6, r5, c1, c0, 0 @ Initialize TEEHBR to 0 + mrc p14, 6, r0, c0, c0, 0 @ load TEECR + orr r0, r0, #1 @ set the 1st bit in order to + mcr p14, 6, r0, c0, c0, 0 @ stop userspace TEEHBR access +1: +#endif adr r5, v7_crval ldmia r5, {r5, r6} #ifdef CONFIG_CPU_ENDIAN_BE8 -- cgit v0.10.2 From 708e5978dfee0090a27c5531ce3b017dd6d190a2 Mon Sep 17 00:00:00 2001 From: Rabin Vincent Date: Sat, 14 Apr 2012 21:51:32 +0100 Subject: ARM: 7386/1: jump_label: fixup for rename to static_key c5905afb0 ("static keys: Introduce 'struct static_key'...") renamed struct jump_label_key to struct static_key. Fixup ARM for this to eliminate these build warnings: include/linux/jump_label.h:113:2: warning: passing argument 1 of 'arch_static_branch' from incompatible pointer type include/asm/jump_label.h:17:82: note: expected 'struct jump_label_key *' but argument is of type 'struct static_key *' Signed-off-by: Rabin Vincent Signed-off-by: Russell King diff --git a/arch/arm/include/asm/jump_label.h b/arch/arm/include/asm/jump_label.h index 5c5ca2e..bfc198c 100644 --- a/arch/arm/include/asm/jump_label.h +++ b/arch/arm/include/asm/jump_label.h @@ -14,7 +14,7 @@ #define JUMP_LABEL_NOP "nop" #endif -static __always_inline bool arch_static_branch(struct jump_label_key *key) +static __always_inline bool arch_static_branch(struct static_key *key) { asm goto("1:\n\t" JUMP_LABEL_NOP "\n\t" -- cgit v0.10.2 From 12e993b89464707398e4209bd99983e376454985 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 15 Apr 2012 17:23:00 -0700 Subject: x86-32: fix up strncpy_from_user() sign error The 'max' range needs to be unsigned, since the size of the user address space is bigger than 2GB. We know that 'count' is positive in 'long' (that is checked in the caller), so we will truncate 'max' down to something that fits in a signed long, but before we actually do that, that comparison needs to be done in unsigned. Bug introduced in commit 92ae03f2ef99 ("x86: merge 32/64-bit versions of 'strncpy_from_user()' and speed it up"). On x86-64 you can't trigger this, since the user address space is much smaller than 63 bits, and on x86-32 it works in practice, since you would seldom hit the strncpy limits anyway. I had actually tested the corner-cases, I had only tested them on x86-64. Besides, I had only worried about the case of a pointer *close* to the end of the address space, rather than really far away from it ;) This also changes the "we hit the user-specified maximum" to return 'res', for the trivial reason that gcc seems to generate better code that way. 'res' and 'count' are the same in that case, so it really doesn't matter which one we return. Signed-off-by: Linus Torvalds diff --git a/arch/x86/lib/usercopy.c b/arch/x86/lib/usercopy.c index 57252c9..d6ae30b 100644 --- a/arch/x86/lib/usercopy.c +++ b/arch/x86/lib/usercopy.c @@ -57,7 +57,7 @@ static inline unsigned long count_bytes(unsigned long mask) * hit it), 'max' is the address space maximum (and we return * -EFAULT if we hit it). */ -static inline long do_strncpy_from_user(char *dst, const char __user *src, long count, long max) +static inline long do_strncpy_from_user(char *dst, const char __user *src, long count, unsigned long max) { long res = 0; @@ -100,7 +100,7 @@ static inline long do_strncpy_from_user(char *dst, const char __user *src, long * too? If so, that's ok - we got as much as the user asked for. */ if (res >= count) - return count; + return res; /* * Nope: we hit the address space limit, and we still had more -- cgit v0.10.2 From e816b57a337ea3b755de72bec38c10c864f23015 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 15 Apr 2012 18:28:29 -0700 Subject: Linux 3.4-rc3 diff --git a/Makefile b/Makefile index 0df3d00..f6578f4 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 4 SUBLEVEL = 0 -EXTRAVERSION = -rc2 +EXTRAVERSION = -rc3 NAME = Saber-toothed Squirrel # *DOCUMENTATION* -- cgit v0.10.2 From acb0c7accde75f75afc70f662d045827d5126839 Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Wed, 21 Mar 2012 14:17:43 +1000 Subject: m68knommu: remove the unused bootlogo.h processing for 68EZ328 and 68VZ328 The 68EZ328 and 68VZ328 platforms currently try to process their bootlogo.h to make it clean to include in asm files. This is no longer used, the bootlogo.h file is now included only in C code, so remove all the processing code in the 68EZ328 and 68VZ328 Makefiles. Signed-off-by: Greg Ungerer diff --git a/arch/m68k/platform/68EZ328/Makefile b/arch/m68k/platform/68EZ328/Makefile index ee97735..b44d799 100644 --- a/arch/m68k/platform/68EZ328/Makefile +++ b/arch/m68k/platform/68EZ328/Makefile @@ -3,9 +3,3 @@ # obj-y := config.o - -extra-y := bootlogo.rh - -$(obj)/bootlogo.rh: $(src)/bootlogo.h - perl $(src)/../68328/bootlogo.pl < $(src)/bootlogo.h \ - > $(obj)/bootlogo.rh diff --git a/arch/m68k/platform/68VZ328/Makefile b/arch/m68k/platform/68VZ328/Makefile index 447ffa0..a49d75e 100644 --- a/arch/m68k/platform/68VZ328/Makefile +++ b/arch/m68k/platform/68VZ328/Makefile @@ -3,14 +3,9 @@ # obj-y := config.o -logo-$(UCDIMM) := bootlogo.rh -logo-$(DRAGEN2) := screen.h -extra-y := $(logo-y) - -$(obj)/bootlogo.rh: $(src)/../68EZ328/bootlogo.h - perl $(src)/bootlogo.pl < $(src)/../68328/bootlogo.h > $(obj)/bootlogo.rh +extra-$(DRAGEN2):= screen.h $(obj)/screen.h: $(src)/screen.xbm $(src)/xbm2lcd.pl perl $(src)/xbm2lcd.pl < $(src)/screen.xbm > $(obj)/screen.h -clean-files := $(obj)/screen.h $(obj)/bootlogo.rh +clean-files := $(obj)/screen.h -- cgit v0.10.2 From 89d786011fcbc89eedca8b6bf9b7c11bbbde350a Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Wed, 21 Mar 2012 14:22:43 +1000 Subject: m68knommu: move and fix the 68VZ328 platform bootlogo.h The 68EZ328/bootlogo.h is not actually used in the 68EZ328 platform code at all. It is used by the 68VZ328 platform code though, so move it to be with the rest of the 68VZ328 platform code. Commit c0e0c89c089f4bd66dbbd1a44da90abe74fe3f02 ("fix broken boot logo inclusion") modified the bootlogo code to not be included in asm code. Modify 68VZ328/bootlogo.h so that the bootlogo bit map is named correctly for direct use in the C code. Signed-off-by: Greg Ungerer diff --git a/arch/m68k/platform/68EZ328/bootlogo.h b/arch/m68k/platform/68EZ328/bootlogo.h deleted file mode 100644 index e842bda..0000000 --- a/arch/m68k/platform/68EZ328/bootlogo.h +++ /dev/null @@ -1,3204 +0,0 @@ -#define splash_width 640 -#define splash_height 480 -static unsigned char splash_bits[] = { - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 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0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + }; -- cgit v0.10.2 From d7de8649f34d45041409d1af4ba4a521971a9075 Mon Sep 17 00:00:00 2001 From: Andreas Herrmann Date: Wed, 11 Apr 2012 17:12:38 +0200 Subject: x86/amd: Remove broken links from comment and kernel message Signed-off-by: Andreas Herrmann Link: http://lkml.kernel.org/r/20120411151238.GA4794@alberich.amd.com Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index 0a44b90..1248f9c 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -26,7 +26,8 @@ * contact AMD for precise details and a CPU swap. * * See http://www.multimania.com/poulot/k6bug.html - * http://www.amd.com/K6/k6docs/revgd.html + * and section 2.6.2 of "AMD-K6 Processor Revision Guide - Model 6" + * (Publication # 21266 Issue Date: August 1998) * * The following test is erm.. interesting. AMD neglected to up * the chip setting when fixing the bug but they also tweaked some @@ -94,7 +95,6 @@ static void __cpuinit init_amd_k6(struct cpuinfo_x86 *c) "system stability may be impaired when more than 32 MB are used.\n"); else printk(KERN_CONT "probably OK (after B9730xxxx).\n"); - printk(KERN_INFO "Please see http://membres.lycos.fr/poulot/k6bug.html\n"); } /* K6 with old style WHCR */ -- cgit v0.10.2 From 6c7b8e82aab75a25581c4d446fc87f96634e9ef9 Mon Sep 17 00:00:00 2001 From: Masami Hiramatsu Date: Fri, 13 Apr 2012 12:24:27 +0900 Subject: x86: Handle failures of parsing immediate operands in the instruction decoder This can happen if the instruction is much longer than the maximum length, or if insn->opnd_bytes is manually changed. This patch also fixes warnings from -Wswitch-default flag. Reported-by: Prashanth Nageshappa Signed-off-by: Masami Hiramatsu Cc: Linus Torvalds Cc: Ananth N Mavinakayanahalli Cc: Jim Keniston Cc: Linux-mm Cc: Oleg Nesterov Cc: Andi Kleen Cc: Christoph Hellwig Cc: Steven Rostedt Cc: Arnaldo Carvalho de Melo Cc: Anton Arapov Cc: Srikar Dronamraju Cc: yrl.pp-manager.tt@hitachi.com Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20120413032427.32577.42602.stgit@localhost.localdomain Signed-off-by: Ingo Molnar diff --git a/arch/x86/lib/insn.c b/arch/x86/lib/insn.c index 25feb1a..b1e6c4b 100644 --- a/arch/x86/lib/insn.c +++ b/arch/x86/lib/insn.c @@ -379,8 +379,8 @@ err_out: return; } -/* Decode moffset16/32/64 */ -static void __get_moffset(struct insn *insn) +/* Decode moffset16/32/64. Return 0 if failed */ +static int __get_moffset(struct insn *insn) { switch (insn->addr_bytes) { case 2: @@ -397,15 +397,19 @@ static void __get_moffset(struct insn *insn) insn->moffset2.value = get_next(int, insn); insn->moffset2.nbytes = 4; break; + default: /* opnd_bytes must be modified manually */ + goto err_out; } insn->moffset1.got = insn->moffset2.got = 1; + return 1; + err_out: - return; + return 0; } -/* Decode imm v32(Iz) */ -static void __get_immv32(struct insn *insn) +/* Decode imm v32(Iz). Return 0 if failed */ +static int __get_immv32(struct insn *insn) { switch (insn->opnd_bytes) { case 2: @@ -417,14 +421,18 @@ static void __get_immv32(struct insn *insn) insn->immediate.value = get_next(int, insn); insn->immediate.nbytes = 4; break; + default: /* opnd_bytes must be modified manually */ + goto err_out; } + return 1; + err_out: - return; + return 0; } -/* Decode imm v64(Iv/Ov) */ -static void __get_immv(struct insn *insn) +/* Decode imm v64(Iv/Ov), Return 0 if failed */ +static int __get_immv(struct insn *insn) { switch (insn->opnd_bytes) { case 2: @@ -441,15 +449,18 @@ static void __get_immv(struct insn *insn) insn->immediate2.value = get_next(int, insn); insn->immediate2.nbytes = 4; break; + default: /* opnd_bytes must be modified manually */ + goto err_out; } insn->immediate1.got = insn->immediate2.got = 1; + return 1; err_out: - return; + return 0; } /* Decode ptr16:16/32(Ap) */ -static void __get_immptr(struct insn *insn) +static int __get_immptr(struct insn *insn) { switch (insn->opnd_bytes) { case 2: @@ -462,14 +473,17 @@ static void __get_immptr(struct insn *insn) break; case 8: /* ptr16:64 is not exist (no segment) */ - return; + return 0; + default: /* opnd_bytes must be modified manually */ + goto err_out; } insn->immediate2.value = get_next(unsigned short, insn); insn->immediate2.nbytes = 2; insn->immediate1.got = insn->immediate2.got = 1; + return 1; err_out: - return; + return 0; } /** @@ -489,7 +503,8 @@ void insn_get_immediate(struct insn *insn) insn_get_displacement(insn); if (inat_has_moffset(insn->attr)) { - __get_moffset(insn); + if (!__get_moffset(insn)) + goto err_out; goto done; } @@ -517,16 +532,20 @@ void insn_get_immediate(struct insn *insn) insn->immediate2.nbytes = 4; break; case INAT_IMM_PTR: - __get_immptr(insn); + if (!__get_immptr(insn)) + goto err_out; break; case INAT_IMM_VWORD32: - __get_immv32(insn); + if (!__get_immv32(insn)) + goto err_out; break; case INAT_IMM_VWORD: - __get_immv(insn); + if (!__get_immv(insn)) + goto err_out; break; default: - break; + /* Here, insn must have an immediate, but failed */ + goto err_out; } if (inat_has_second_immediate(insn->attr)) { insn->immediate2.value = get_next(char, insn); -- cgit v0.10.2 From 97b3b7a0d0703df04e8c6d05c9b6c2fa8868db10 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Fri, 13 Apr 2012 15:08:01 +0200 Subject: ARM: ux500: Fix unmet direct dependency A recent change to a Kconfig configuration saw MACH_U8500 remove TPS6105X selection. In doing so Kconfig stopped selecting REGULATORS, which is still required. This patch sees UX500_SOC_DB8500 explicitly select it instead. Signed-off-by: Lee Jones Signed-off-by: Linus Walleij diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig index 880d02e..ef7099e 100644 --- a/arch/arm/mach-ux500/Kconfig +++ b/arch/arm/mach-ux500/Kconfig @@ -17,6 +17,7 @@ config UX500_SOC_DB5500 config UX500_SOC_DB8500 bool select MFD_DB8500_PRCMU + select REGULATOR select REGULATOR_DB8500_PRCMU select CPU_FREQ_TABLE if CPU_FREQ -- cgit v0.10.2 From f27962ac68a9b4cf17958522ecd7c10ce2375ee1 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Fri, 13 Apr 2012 10:18:36 +0200 Subject: ARM: ux500: update defconfig Some new drivers and changed Kconfig dependencies for the v3.4 kernel affecting the U8500 defconfig: - The SOC config options are now brought in by default - No need to explicitly select misc devices anymore - I2C is selected by default - We now have support for charging from the AB8500 so compile in this - The regulator framework needs to be explictly selected Signed-off-by: Linus Walleij diff --git a/arch/arm/configs/u8500_defconfig b/arch/arm/configs/u8500_defconfig index 889d73a..7e84f45 100644 --- a/arch/arm/configs/u8500_defconfig +++ b/arch/arm/configs/u8500_defconfig @@ -8,8 +8,6 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_LBDAF is not set # CONFIG_BLK_DEV_BSG is not set CONFIG_ARCH_U8500=y -CONFIG_UX500_SOC_DB5500=y -CONFIG_UX500_SOC_DB8500=y CONFIG_MACH_HREFV60=y CONFIG_MACH_SNOWBALL=y CONFIG_MACH_U5500=y @@ -39,7 +37,6 @@ CONFIG_CAIF=y CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_SIZE=65536 -CONFIG_MISC_DEVICES=y CONFIG_AB8500_PWM=y CONFIG_SENSORS_BH1780=y CONFIG_NETDEVICES=y @@ -65,16 +62,18 @@ CONFIG_SERIAL_AMBA_PL011=y CONFIG_SERIAL_AMBA_PL011_CONSOLE=y CONFIG_HW_RANDOM=y CONFIG_HW_RANDOM_NOMADIK=y -CONFIG_I2C=y -CONFIG_I2C_NOMADIK=y CONFIG_SPI=y CONFIG_SPI_PL022=y CONFIG_GPIO_STMPE=y CONFIG_GPIO_TC3589X=y +CONFIG_POWER_SUPPLY=y +CONFIG_AB8500_BM=y +CONFIG_AB8500_BATTERY_THERM_ON_BATCTRL=y CONFIG_MFD_STMPE=y CONFIG_MFD_TC3589X=y CONFIG_AB5500_CORE=y CONFIG_AB8500_CORE=y +CONFIG_REGULATOR=y CONFIG_REGULATOR_AB8500=y # CONFIG_HID_SUPPORT is not set CONFIG_USB_GADGET=y -- cgit v0.10.2 From f9bef081c3c3f77bec54454872e98d3ec635756f Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Sun, 15 Apr 2012 19:53:19 +0200 Subject: drm/i915: don't clobber the special upscaling lvds timings This regression has been introduced in commit ca9bfa7eed20ea34e862804e62aae10eb159edbb Author: Daniel Vetter Date: Sat Jan 28 14:49:20 2012 +0100 drm/i915: fixup interlaced vertical timings confusion, part 1 Unfortunately that commit failed to take into account that the lvds code does some special adjustements to the crtc timings for upscaling an centering. Fix this by explicitly computing crtc timings in the lvds mode fixup function and setting a special flag in mode->private_flags if the crtc timings have been adjusted. v2: Add a comment to explain the new mode driver private flag, suggested by Eugeni Dodonov. v3: Kill the confusing and now redundant set_crtcinfo call in intel_fixed_panel_mode, noticed by Chris Wilson. Reported-and-Tested-by: Hans de Bruin Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43071 Reviewed-by: Eugeni Dodonov Reviewed-by: Chris Wilson Signed-Off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index bae38ac..8be3091 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3478,8 +3478,11 @@ static bool intel_crtc_mode_fixup(struct drm_crtc *crtc, return false; } - /* All interlaced capable intel hw wants timings in frames. */ - drm_mode_set_crtcinfo(adjusted_mode, 0); + /* All interlaced capable intel hw wants timings in frames. Note though + * that intel_lvds_mode_fixup does some funny tricks with the crtc + * timings, so we need to be careful not to clobber these.*/ + if (!(adjusted_mode->private_flags & INTEL_MODE_CRTC_TIMINGS_SET)) + drm_mode_set_crtcinfo(adjusted_mode, 0); return true; } diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 5a14149..715afa1 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -105,6 +105,10 @@ #define INTEL_MODE_PIXEL_MULTIPLIER_SHIFT (0x0) #define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << INTEL_MODE_PIXEL_MULTIPLIER_SHIFT) #define INTEL_MODE_DP_FORCE_6BPC (0x10) +/* This flag must be set by the encoder's mode_fixup if it changes the crtc + * timings in the mode to prevent the crtc fixup from overwriting them. + * Currently only lvds needs that. */ +#define INTEL_MODE_CRTC_TIMINGS_SET (0x20) static inline void intel_mode_set_pixel_multiplier(struct drm_display_mode *mode, diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index 95db2e9..30e2c82 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -187,6 +187,8 @@ centre_horizontally(struct drm_display_mode *mode, mode->crtc_hsync_start = mode->crtc_hblank_start + sync_pos; mode->crtc_hsync_end = mode->crtc_hsync_start + sync_width; + + mode->private_flags |= INTEL_MODE_CRTC_TIMINGS_SET; } static void @@ -208,6 +210,8 @@ centre_vertically(struct drm_display_mode *mode, mode->crtc_vsync_start = mode->crtc_vblank_start + sync_pos; mode->crtc_vsync_end = mode->crtc_vsync_start + sync_width; + + mode->private_flags |= INTEL_MODE_CRTC_TIMINGS_SET; } static inline u32 panel_fitter_scaling(u32 source, u32 target) @@ -283,6 +287,8 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder, for_each_pipe(pipe) I915_WRITE(BCLRPAT(pipe), 0); + drm_mode_set_crtcinfo(adjusted_mode, 0); + switch (intel_lvds->fitting_mode) { case DRM_MODE_SCALE_CENTER: /* diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index 230a141..48177ec 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -47,8 +47,6 @@ intel_fixed_panel_mode(struct drm_display_mode *fixed_mode, adjusted_mode->vtotal = fixed_mode->vtotal; adjusted_mode->clock = fixed_mode->clock; - - drm_mode_set_crtcinfo(adjusted_mode, 0); } /* adjusted_mode has been preset to be the panel's fixed mode */ -- cgit v0.10.2 From 9fce85c7e4357a93457c8fd2534a1cc1c3055bf5 Mon Sep 17 00:00:00 2001 From: Joachim Eastwood Date: Wed, 4 Apr 2012 19:15:15 +0200 Subject: ARM: at91: Export at91_st_base After commit 5e9cf5e (ARM: at91: make ST (System Timer) soc independent) building at91rm9200_wdt as a module fails with following message ERROR: "at91_st_base" [drivers/watchdog/at91rm9200_wdt.ko] undefined! make[1]: *** [__modpost] Error 1 make: *** [modules] Error 2 Export symbol to allow wdt driver to be built as a module again. Signed-off-by: Joachim Eastwood [nicolas.ferre@atmel.com: use EXPORT_SYMBOL_GPL()] Signed-off-by: Nicolas Ferre diff --git a/arch/arm/mach-at91/at91rm9200_time.c b/arch/arm/mach-at91/at91rm9200_time.c index dd7f782..104ca40 100644 --- a/arch/arm/mach-at91/at91rm9200_time.c +++ b/arch/arm/mach-at91/at91rm9200_time.c @@ -23,6 +23,7 @@ #include #include #include +#include #include @@ -176,6 +177,7 @@ static struct clock_event_device clkevt = { }; void __iomem *at91_st_base; +EXPORT_SYMBOL_GPL(at91_st_base); void __init at91rm9200_ioremap_st(u32 addr) { -- cgit v0.10.2 From 9268c6c6fab0b27a01afec8268f7c863783541bf Mon Sep 17 00:00:00 2001 From: Joachim Eastwood Date: Fri, 30 Mar 2012 23:03:50 +0200 Subject: ARM: at91: Export at91_ramc_base After commit f363c40 (ARM: at91: make sdram/ddr register base soc independent) building at91_cf as a module fails with: ERROR: "at91_ramc_base" [drivers/pcmcia/at91_cf.ko] undefined! make[1]: *** [__modpost] Error 1 make: *** [modules] Error 2 Export at91_ramc_base symbol to allow drivers using at91_ramc_* functions to be built as modules again. Signed-off-by: Joachim Eastwood [nicolas.ferre@atmel.com: modify slightly commit message] Signed-off-by: Nicolas Ferre diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c index 97cc04d..0607847 100644 --- a/arch/arm/mach-at91/setup.c +++ b/arch/arm/mach-at91/setup.c @@ -54,6 +54,7 @@ void __init at91_init_interrupts(unsigned int *priority) } void __iomem *at91_ramc_base[2]; +EXPORT_SYMBOL_GPL(at91_ramc_base); void __init at91_ioremap_ramc(int id, u32 addr, u32 size) { -- cgit v0.10.2 From f19b797c08017c9b03d81986b2efc4c5cf4bc453 Mon Sep 17 00:00:00 2001 From: Joachim Eastwood Date: Sat, 7 Apr 2012 19:30:22 +0200 Subject: ARM: at91: Export at91_pmc_base After commit b55149529d26 (ARM: at91/PMC: make register base soc independent) building atmel_usba_udc as a module fails with following message ERROR: "at91_pmc_base" [drivers/usb/gadget/atmel_usba_udc.ko] undefined! make[1]: *** [__modpost] Error 1 make: *** [modules] Error 2 Export symbol to allow driver to be built as a module again. Signed-off-by: Joachim Eastwood Signed-off-by: Nicolas Ferre diff --git a/arch/arm/mach-at91/clock.c b/arch/arm/mach-at91/clock.c index a0f4d74..6b69282 100644 --- a/arch/arm/mach-at91/clock.c +++ b/arch/arm/mach-at91/clock.c @@ -35,6 +35,7 @@ #include "generic.h" void __iomem *at91_pmc_base; +EXPORT_SYMBOL_GPL(at91_pmc_base); /* * There's a lot more which can be done with clocks, including cpufreq -- cgit v0.10.2 From ac8c411c8360c281d1fb5e03a975e9088d069ded Mon Sep 17 00:00:00 2001 From: Joachim Eastwood Date: Sat, 7 Apr 2012 19:30:23 +0200 Subject: ARM: at91: Export at91_matrix_base at91_matrix_* macro's are used by at91_udc usb gadget driver, which can be built as module, therefore we need to export the variable containing matrix base address. Signed-off-by: Joachim Eastwood Signed-off-by: Nicolas Ferre diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c index 0607847..f44a2e7 100644 --- a/arch/arm/mach-at91/setup.c +++ b/arch/arm/mach-at91/setup.c @@ -293,6 +293,7 @@ void __init at91_ioremap_rstc(u32 base_addr) } void __iomem *at91_matrix_base; +EXPORT_SYMBOL_GPL(at91_matrix_base); void __init at91_ioremap_matrix(u32 base_addr) { -- cgit v0.10.2 From 67f3af402aebb0098998d3bbebda2fb44aa3a081 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Tue, 10 Apr 2012 14:30:24 +0200 Subject: ARM: at91: fix typo in at91_pmc_base assembly declaration Signed-off-by: Nicolas Ferre diff --git a/arch/arm/mach-at91/include/mach/at91_pmc.h b/arch/arm/mach-at91/include/mach/at91_pmc.h index 3660478..ea2c57a 100644 --- a/arch/arm/mach-at91/include/mach/at91_pmc.h +++ b/arch/arm/mach-at91/include/mach/at91_pmc.h @@ -25,7 +25,7 @@ extern void __iomem *at91_pmc_base; #define at91_pmc_write(field, value) \ __raw_writel(value, at91_pmc_base + field) #else -.extern at91_aic_base +.extern at91_pmc_base #endif #define AT91_PMC_SCER 0x00 /* System Clock Enable Register */ -- cgit v0.10.2 From 926de6d8b90feee26717c01543243b8e07681303 Mon Sep 17 00:00:00 2001 From: Joachim Eastwood Date: Fri, 6 Apr 2012 14:36:19 +0200 Subject: ARM: at91: remove empty at91_init_serial function The real function is long gone and the empty one will generate warnings when configured without Atmel serial: arch/arm/mach-at91/at91rm9200_devices.c:1176: warning: 'struct at91_uart_config' declared inside parameter list arch/arm/mach-at91/at91rm9200_devices.c:1176: warning: its scope is only this definition or declaration, which is probably not what you want Signed-off-by: Joachim Eastwood Signed-off-by: Nicolas Ferre diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c index 99ce5c9..05774e5 100644 --- a/arch/arm/mach-at91/at91rm9200_devices.c +++ b/arch/arm/mach-at91/at91rm9200_devices.c @@ -1173,7 +1173,6 @@ void __init at91_add_device_serial(void) printk(KERN_INFO "AT91: No default serial console defined.\n"); } #else -void __init __deprecated at91_init_serial(struct at91_uart_config *config) {} void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {} void __init at91_set_serial_console(unsigned portnr) {} void __init at91_add_device_serial(void) {} -- cgit v0.10.2 From bf66b0d1dad30cc1241dc4e3ac193251a4694f5c Mon Sep 17 00:00:00 2001 From: Jean-Christophe PLAGNIOL-VILLARD Date: Tue, 10 Apr 2012 16:02:31 +0200 Subject: ARM: at91: fix rm9200ek flash size The flash size is 8MiB. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD Acked-by: Nicolas Ferre diff --git a/arch/arm/mach-at91/board-rm9200ek.c b/arch/arm/mach-at91/board-rm9200ek.c index 11cbaa8..b2e4fe2 100644 --- a/arch/arm/mach-at91/board-rm9200ek.c +++ b/arch/arm/mach-at91/board-rm9200ek.c @@ -117,7 +117,7 @@ static struct i2c_board_info __initdata ek_i2c_devices[] = { }; #define EK_FLASH_BASE AT91_CHIPSELECT_0 -#define EK_FLASH_SIZE SZ_2M +#define EK_FLASH_SIZE SZ_8M static struct physmap_flash_data ek_flash_data = { .width = 2, -- cgit v0.10.2 From ee9dd7631af6fb5c02964ed5b496217cd4ced059 Mon Sep 17 00:00:00 2001 From: Jean-Christophe PLAGNIOL-VILLARD Date: Tue, 10 Apr 2012 17:32:44 +0200 Subject: ARM: at91: fix at91sam9261ek Ethernet dm9000 irq You need to setup the dm9000 irq via gpio_to_irq() since d0fbda9add (ARM: at91/gpio: drop PIN_BASE). Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD Acked-by: Nicolas Ferre Cc: stable [3.2+] diff --git a/arch/arm/mach-at91/board-sam9261ek.c b/arch/arm/mach-at91/board-sam9261ek.c index c3f9944..065fed3 100644 --- a/arch/arm/mach-at91/board-sam9261ek.c +++ b/arch/arm/mach-at91/board-sam9261ek.c @@ -85,8 +85,6 @@ static struct resource dm9000_resource[] = { .flags = IORESOURCE_MEM }, [2] = { - .start = AT91_PIN_PC11, - .end = AT91_PIN_PC11, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE, } @@ -130,6 +128,8 @@ static struct sam9_smc_config __initdata dm9000_smc_config = { static void __init ek_add_device_dm9000(void) { + struct resource *r = &dm9000_resource[2]; + /* Configure chip-select 2 (DM9000) */ sam9_smc_configure(0, 2, &dm9000_smc_config); @@ -139,6 +139,7 @@ static void __init ek_add_device_dm9000(void) /* Configure Interrupt pin as input, no pull-up */ at91_set_gpio_input(AT91_PIN_PC11, 0); + r->start = r->end = gpio_to_irq(AT91_PIN_PC11); platform_device_register(&dm9000_device); } #else -- cgit v0.10.2 From 745c0ce35f904aeff8e1ea325c259a14a00ff1b7 Mon Sep 17 00:00:00 2001 From: Vishal Agarwal Date: Fri, 13 Apr 2012 17:43:22 +0530 Subject: Bluetooth: hci_persistent_key should return bool This patch changes the return type of function hci_persistent_key from int to bool because it makes more sense to return information whether a key is persistent or not as a bool. Signed-off-by: Vishal Agarwal Acked-by: Marcel Holtmann Signed-off-by: Johan Hedberg diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 6822d25..f8577c1 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -980,7 +980,7 @@ int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable); int mgmt_connectable(struct hci_dev *hdev, u8 connectable); int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status); int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, - u8 persistent); + bool persistent); int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, u8 addr_type, u32 flags, u8 *name, u8 name_len, u8 *dev_class); diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 2054c13..c2251e4 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -1216,40 +1216,40 @@ struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr) return NULL; } -static int hci_persistent_key(struct hci_dev *hdev, struct hci_conn *conn, +static bool hci_persistent_key(struct hci_dev *hdev, struct hci_conn *conn, u8 key_type, u8 old_key_type) { /* Legacy key */ if (key_type < 0x03) - return 1; + return true; /* Debug keys are insecure so don't store them persistently */ if (key_type == HCI_LK_DEBUG_COMBINATION) - return 0; + return false; /* Changed combination key and there's no previous one */ if (key_type == HCI_LK_CHANGED_COMBINATION && old_key_type == 0xff) - return 0; + return false; /* Security mode 3 case */ if (!conn) - return 1; + return true; /* Neither local nor remote side had no-bonding as requirement */ if (conn->auth_type > 0x01 && conn->remote_auth > 0x01) - return 1; + return true; /* Local side had dedicated bonding as requirement */ if (conn->auth_type == 0x02 || conn->auth_type == 0x03) - return 1; + return true; /* Remote side had dedicated bonding as requirement */ if (conn->remote_auth == 0x02 || conn->remote_auth == 0x03) - return 1; + return true; /* If none of the above criteria match, then don't store the key * persistently */ - return 0; + return false; } struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]) @@ -1286,7 +1286,8 @@ int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key, bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len) { struct link_key *key, *old_key; - u8 old_key_type, persistent; + u8 old_key_type; + bool persistent; old_key = hci_find_link_key(hdev, bdaddr); if (old_key) { diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 4ef275c..4bb03b1 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -2884,7 +2884,7 @@ int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status) return 0; } -int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, u8 persistent) +int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, bool persistent) { struct mgmt_ev_new_link_key ev; -- cgit v0.10.2 From 6ec5bcadc21e13ceba8c144e4731eccac01d04f7 Mon Sep 17 00:00:00 2001 From: Vishal Agarwal Date: Mon, 16 Apr 2012 14:44:44 +0530 Subject: Bluetooth: Temporary keys should be retained during connection If a key is non persistent then it should not be used in future connections but it should be kept for current connection. And it should be removed when connecion is removed. Signed-off-by: Vishal Agarwal Acked-by: Marcel Holtmann Signed-off-by: Johan Hedberg diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index f8577c1..db1c5df 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -314,6 +314,7 @@ struct hci_conn { __u8 remote_cap; __u8 remote_auth; + bool flush_key; unsigned int sent; diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index c2251e4..a7607e4 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -1330,10 +1330,8 @@ int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key, mgmt_new_link_key(hdev, key, persistent); - if (!persistent) { - list_del(&key->list); - kfree(key); - } + if (conn) + conn->flush_key = !persistent; return 0; } diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index badb785..6a72eae 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -1902,6 +1902,8 @@ static inline void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff } if (ev->status == 0) { + if (conn->type == ACL_LINK && conn->flush_key) + hci_remove_link_key(hdev, &conn->dst); hci_proto_disconn_cfm(conn, ev->reason); hci_conn_del(conn); } -- cgit v0.10.2 From 16a5e32b83fd946312b9b13590c75d20c95c5202 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Fri, 13 Apr 2012 11:14:50 +0100 Subject: drm/radeon: disable MSI on RV515 My rv515 card is very flaky with msi enabled. Every so often it loses a rearm and never comes back, manually banging the rearm brings it back. Reviewed-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c index 66d5fe1..65060b7 100644 --- a/drivers/gpu/drm/radeon/radeon_irq_kms.c +++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c @@ -147,6 +147,12 @@ static bool radeon_msi_ok(struct radeon_device *rdev) (rdev->pdev->subsystem_device == 0x01fd)) return true; + /* RV515 seems to have MSI issues where it loses + * MSI rearms occasionally. This leads to lockups and freezes. + * disable it by default. + */ + if (rdev->family == CHIP_RV515) + return false; if (rdev->flags & RADEON_IS_IGP) { /* APUs work fine with MSIs */ if (rdev->family >= CHIP_PALM) -- cgit v0.10.2 From 5273db706f8b673902638fee7f907909ed6ae3f9 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 13 Apr 2012 10:26:36 -0400 Subject: drm/radeon/si: add missing radeon_bo_unreserve in si_rlc_init() v2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Forget to unreserve after pinning. This can lead to problems in soft reset and resume. v2: rework patch as per Michel's suggestion. Signed-off-by: Alex Deucher Reviewed-by: Michel Dänzer Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index ac7a199..27bda98 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -2999,8 +2999,8 @@ int si_rlc_init(struct radeon_device *rdev) } r = radeon_bo_pin(rdev->rlc.save_restore_obj, RADEON_GEM_DOMAIN_VRAM, &rdev->rlc.save_restore_gpu_addr); + radeon_bo_unreserve(rdev->rlc.save_restore_obj); if (r) { - radeon_bo_unreserve(rdev->rlc.save_restore_obj); dev_warn(rdev->dev, "(%d) pin RLC sr bo failed\n", r); si_rlc_fini(rdev); return r; @@ -3023,9 +3023,8 @@ int si_rlc_init(struct radeon_device *rdev) } r = radeon_bo_pin(rdev->rlc.clear_state_obj, RADEON_GEM_DOMAIN_VRAM, &rdev->rlc.clear_state_gpu_addr); + radeon_bo_unreserve(rdev->rlc.clear_state_obj); if (r) { - - radeon_bo_unreserve(rdev->rlc.clear_state_obj); dev_warn(rdev->dev, "(%d) pin RLC c bo failed\n", r); si_rlc_fini(rdev); return r; -- cgit v0.10.2 From 9e755756e4a22784abfb001688357745ea8ca97c Mon Sep 17 00:00:00 2001 From: David Ahern Date: Sun, 15 Apr 2012 20:54:15 -0600 Subject: perf report: Fix crash showing warning related to kernel maps While testing https://lkml.org/lkml/2012/4/10/123 I hit this crash: (gdb) bt 0 0x000000000042000f in __cmd_report (rep=0x7fff80cec580) at builtin-report.c:380 1 cmd_report (argc=0, argv=, prefix=) at builtin-report.c:759 2 0x0000000000414513 in run_builtin (p=0x7724a8, argc=3, argv=0x7fff80ceca70) at perf.c:273 3 0x0000000000413d41 in handle_internal_command (argv=0x7fff80ceca70, argc=3) at perf.c:345 4 run_argv (argv=0x7fff80cec880, argcp=0x7fff80cec88c) at perf.c:389 5 main (argc=3, argv=0x7fff80ceca70) at perf.c:487 kernel_map can be NULL, so need to handle it while dumping a warning to user. v2: - fixed RB_EMPTY_ROOT check -- desc takes the altnerative output when RB_EMPTY_ROOT is false. Signed-off-by: David Ahern Cc: Ingo Molnar Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Namhyung Kim Link: http://lkml.kernel.org/r/1334544855-55021-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 2e31743..cdae9b2 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -374,16 +374,23 @@ static int __cmd_report(struct perf_report *rep) (kernel_map->dso->hit && (kernel_kmap->ref_reloc_sym == NULL || kernel_kmap->ref_reloc_sym->addr == 0))) { - const struct dso *kdso = kernel_map->dso; + const char *desc = + "As no suitable kallsyms nor vmlinux was found, kernel samples\n" + "can't be resolved."; + + if (kernel_map) { + const struct dso *kdso = kernel_map->dso; + if (!RB_EMPTY_ROOT(&kdso->symbols[MAP__FUNCTION])) { + desc = "If some relocation was applied (e.g. " + "kexec) symbols may be misresolved."; + } + } ui__warning( "Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n" "Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n" "Samples in kernel modules can't be resolved as well.\n\n", - RB_EMPTY_ROOT(&kdso->symbols[MAP__FUNCTION]) ? -"As no suitable kallsyms nor vmlinux was found, kernel samples\n" -"can't be resolved." : -"If some relocation was applied (e.g. kexec) symbols may be misresolved."); + desc); } if (dump_trace) { -- cgit v0.10.2 From 4accdff7a3e397b43e50f605ee561ba7994745c7 Mon Sep 17 00:00:00 2001 From: Daniel Lezcano Date: Mon, 2 Apr 2012 17:55:48 +0200 Subject: mfd : Fix dbx500 compilation error The ux500 default config enables the db5500 and the db8500. The incoming cpuidle driver uses the 'prcmu_enable_wakeups' and the 'prcmu_set_power_state' functions but these ones are defined but not implemented for the db5500, leading to an unresolved symbol error at link time. In order to compile, we have to disable the db5500 support which is not acceptable for the default config. I noticed there are also some other functions which are defined but not implemented. This patch fix this by removing the functions definitions and move out of the config section the empty functions which are normally used when the DB550 config is disabled. Only the functions which are not implemented are concerned by this modification. Signed-off-by: Daniel Lezcano Acked-by: Linus Walleij Signed-off-by: Samuel Ortiz diff --git a/include/linux/mfd/db5500-prcmu.h b/include/linux/mfd/db5500-prcmu.h index 9890687..5a049df 100644 --- a/include/linux/mfd/db5500-prcmu.h +++ b/include/linux/mfd/db5500-prcmu.h @@ -8,41 +8,14 @@ #ifndef __MFD_DB5500_PRCMU_H #define __MFD_DB5500_PRCMU_H -#ifdef CONFIG_MFD_DB5500_PRCMU - -void db5500_prcmu_early_init(void); -int db5500_prcmu_set_epod(u16 epod_id, u8 epod_state); -int db5500_prcmu_set_display_clocks(void); -int db5500_prcmu_disable_dsipll(void); -int db5500_prcmu_enable_dsipll(void); -int db5500_prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size); -int db5500_prcmu_abb_write(u8 slave, u8 reg, u8 *value, u8 size); -void db5500_prcmu_enable_wakeups(u32 wakeups); -int db5500_prcmu_request_clock(u8 clock, bool enable); -void db5500_prcmu_config_abb_event_readout(u32 abb_events); -void db5500_prcmu_get_abb_event_buffer(void __iomem **buf); -int prcmu_resetout(u8 resoutn, u8 state); -int db5500_prcmu_set_power_state(u8 state, bool keep_ulp_clk, - bool keep_ap_pll); -int db5500_prcmu_config_esram0_deep_sleep(u8 state); -void db5500_prcmu_system_reset(u16 reset_code); -u16 db5500_prcmu_get_reset_code(void); -bool db5500_prcmu_is_ac_wake_requested(void); -int db5500_prcmu_set_arm_opp(u8 opp); -int db5500_prcmu_get_arm_opp(void); - -#else /* !CONFIG_UX500_SOC_DB5500 */ - -static inline void db5500_prcmu_early_init(void) {} - -static inline int db5500_prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size) +static inline int prcmu_resetout(u8 resoutn, u8 state) { - return -ENOSYS; + return 0; } -static inline int db5500_prcmu_abb_write(u8 slave, u8 reg, u8 *value, u8 size) +static inline int db5500_prcmu_set_epod(u16 epod_id, u8 epod_state) { - return -ENOSYS; + return 0; } static inline int db5500_prcmu_request_clock(u8 clock, bool enable) @@ -50,69 +23,82 @@ static inline int db5500_prcmu_request_clock(u8 clock, bool enable) return 0; } -static inline int db5500_prcmu_set_display_clocks(void) +static inline int db5500_prcmu_set_power_state(u8 state, bool keep_ulp_clk, + bool keep_ap_pll) { return 0; } -static inline int db5500_prcmu_disable_dsipll(void) +static inline int db5500_prcmu_config_esram0_deep_sleep(u8 state) { return 0; } -static inline int db5500_prcmu_enable_dsipll(void) +static inline u16 db5500_prcmu_get_reset_code(void) { return 0; } -static inline int db5500_prcmu_config_esram0_deep_sleep(u8 state) +static inline bool db5500_prcmu_is_ac_wake_requested(void) { return 0; } -static inline void db5500_prcmu_enable_wakeups(u32 wakeups) {} - -static inline int prcmu_resetout(u8 resoutn, u8 state) +static inline int db5500_prcmu_set_arm_opp(u8 opp) { return 0; } -static inline int db5500_prcmu_set_epod(u16 epod_id, u8 epod_state) +static inline int db5500_prcmu_get_arm_opp(void) { return 0; } -static inline void db5500_prcmu_get_abb_event_buffer(void __iomem **buf) {} static inline void db5500_prcmu_config_abb_event_readout(u32 abb_events) {} -static inline int db5500_prcmu_set_power_state(u8 state, bool keep_ulp_clk, - bool keep_ap_pll) -{ - return 0; -} +static inline void db5500_prcmu_get_abb_event_buffer(void __iomem **buf) {} static inline void db5500_prcmu_system_reset(u16 reset_code) {} -static inline u16 db5500_prcmu_get_reset_code(void) +static inline void db5500_prcmu_enable_wakeups(u32 wakeups) {} + +#ifdef CONFIG_MFD_DB5500_PRCMU + +void db5500_prcmu_early_init(void); +int db5500_prcmu_set_display_clocks(void); +int db5500_prcmu_disable_dsipll(void); +int db5500_prcmu_enable_dsipll(void); +int db5500_prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size); +int db5500_prcmu_abb_write(u8 slave, u8 reg, u8 *value, u8 size); + +#else /* !CONFIG_UX500_SOC_DB5500 */ + +static inline void db5500_prcmu_early_init(void) {} + +static inline int db5500_prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size) { - return 0; + return -ENOSYS; } -static inline bool db5500_prcmu_is_ac_wake_requested(void) +static inline int db5500_prcmu_abb_write(u8 slave, u8 reg, u8 *value, u8 size) { - return 0; + return -ENOSYS; } -static inline int db5500_prcmu_set_arm_opp(u8 opp) +static inline int db5500_prcmu_set_display_clocks(void) { return 0; } -static inline int db5500_prcmu_get_arm_opp(void) +static inline int db5500_prcmu_disable_dsipll(void) { return 0; } +static inline int db5500_prcmu_enable_dsipll(void) +{ + return 0; +} #endif /* CONFIG_MFD_DB5500_PRCMU */ -- cgit v0.10.2 From 8eaeb9393397be8eb700ab38a69c450975463b77 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Tue, 3 Apr 2012 11:56:51 +0300 Subject: mfd: Convert twl6040 to i2c driver, and separate it from twl core Complete the separation of the twl6040 from the twl core since it is a separate chip, not part of the twl6030 PMIC. Make the needed Kconfig changes for the depending drivers at the same time to avoid breaking the kernel build (vibra, ASoC components). Signed-off-by: Peter Ujfalusi Reviewed-by: Mark Brown Acked-by: Tony Lindgren Acked-by: Dmitry Torokhov Signed-off-by: Samuel Ortiz diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c index a39fc4b..130ab00 100644 --- a/arch/arm/mach-omap2/board-4430sdp.c +++ b/arch/arm/mach-omap2/board-4430sdp.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include @@ -560,7 +561,7 @@ static struct regulator_init_data sdp4430_vusim = { }, }; -static struct twl4030_codec_data twl6040_codec = { +static struct twl6040_codec_data twl6040_codec = { /* single-step ramp for headset and handsfree */ .hs_left_step = 0x0f, .hs_right_step = 0x0f, @@ -568,7 +569,7 @@ static struct twl4030_codec_data twl6040_codec = { .hf_right_step = 0x1d, }; -static struct twl4030_vibra_data twl6040_vibra = { +static struct twl6040_vibra_data twl6040_vibra = { .vibldrv_res = 8, .vibrdrv_res = 3, .viblmotor_res = 10, @@ -577,16 +578,14 @@ static struct twl4030_vibra_data twl6040_vibra = { .vddvibr_uV = 0, /* fixed volt supply - VBAT */ }; -static struct twl4030_audio_data twl6040_audio = { +static struct twl6040_platform_data twl6040_data = { .codec = &twl6040_codec, .vibra = &twl6040_vibra, .audpwron_gpio = 127, - .naudint_irq = OMAP44XX_IRQ_SYS_2N, .irq_base = TWL6040_CODEC_IRQ_BASE, }; static struct twl4030_platform_data sdp4430_twldata = { - .audio = &twl6040_audio, /* Regulators */ .vusim = &sdp4430_vusim, .vaux1 = &sdp4430_vaux1, @@ -617,7 +616,8 @@ static int __init omap4_i2c_init(void) TWL_COMMON_REGULATOR_VCXIO | TWL_COMMON_REGULATOR_VUSB | TWL_COMMON_REGULATOR_CLK32KG); - omap4_pmic_init("twl6030", &sdp4430_twldata); + omap4_pmic_init("twl6030", &sdp4430_twldata, + &twl6040_data, OMAP44XX_IRQ_SYS_2N); omap_register_i2c_bus(2, 400, NULL, 0); omap_register_i2c_bus(3, 400, sdp4430_i2c_3_boardinfo, ARRAY_SIZE(sdp4430_i2c_3_boardinfo)); diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c index 74e1687..098d183 100644 --- a/arch/arm/mach-omap2/board-generic.c +++ b/arch/arm/mach-omap2/board-generic.c @@ -137,7 +137,7 @@ static struct twl4030_platform_data sdp4430_twldata = { static void __init omap4_i2c_init(void) { - omap4_pmic_init("twl6030", &sdp4430_twldata); + omap4_pmic_init("twl6030", &sdp4430_twldata, NULL, 0); } static void __init omap4_init(void) diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c index d8c0e89..1b782ba 100644 --- a/arch/arm/mach-omap2/board-omap4panda.c +++ b/arch/arm/mach-omap2/board-omap4panda.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include #include @@ -284,7 +285,7 @@ static int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers) return 0; } -static struct twl4030_codec_data twl6040_codec = { +static struct twl6040_codec_data twl6040_codec = { /* single-step ramp for headset and handsfree */ .hs_left_step = 0x0f, .hs_right_step = 0x0f, @@ -292,17 +293,14 @@ static struct twl4030_codec_data twl6040_codec = { .hf_right_step = 0x1d, }; -static struct twl4030_audio_data twl6040_audio = { +static struct twl6040_platform_data twl6040_data = { .codec = &twl6040_codec, .audpwron_gpio = 127, - .naudint_irq = OMAP44XX_IRQ_SYS_2N, .irq_base = TWL6040_CODEC_IRQ_BASE, }; /* Panda board uses the common PMIC configuration */ -static struct twl4030_platform_data omap4_panda_twldata = { - .audio = &twl6040_audio, -}; +static struct twl4030_platform_data omap4_panda_twldata; /* * Display monitor features are burnt in their EEPROM as EDID data. The EEPROM @@ -326,7 +324,8 @@ static int __init omap4_panda_i2c_init(void) TWL_COMMON_REGULATOR_VCXIO | TWL_COMMON_REGULATOR_VUSB | TWL_COMMON_REGULATOR_CLK32KG); - omap4_pmic_init("twl6030", &omap4_panda_twldata); + omap4_pmic_init("twl6030", &omap4_panda_twldata, + &twl6040_data, OMAP44XX_IRQ_SYS_2N); omap_register_i2c_bus(2, 400, NULL, 0); /* * Bus 3 is attached to the DVI port where devices like the pico DLP diff --git a/arch/arm/mach-omap2/twl-common.c b/arch/arm/mach-omap2/twl-common.c index 4b57757..7a7b893 100644 --- a/arch/arm/mach-omap2/twl-common.c +++ b/arch/arm/mach-omap2/twl-common.c @@ -37,6 +37,16 @@ static struct i2c_board_info __initdata pmic_i2c_board_info = { .flags = I2C_CLIENT_WAKE, }; +static struct i2c_board_info __initdata omap4_i2c1_board_info[] = { + { + .addr = 0x48, + .flags = I2C_CLIENT_WAKE, + }, + { + I2C_BOARD_INFO("twl6040", 0x4b), + }, +}; + void __init omap_pmic_init(int bus, u32 clkrate, const char *pmic_type, int pmic_irq, struct twl4030_platform_data *pmic_data) @@ -49,14 +59,31 @@ void __init omap_pmic_init(int bus, u32 clkrate, omap_register_i2c_bus(bus, clkrate, &pmic_i2c_board_info, 1); } +void __init omap4_pmic_init(const char *pmic_type, + struct twl4030_platform_data *pmic_data, + struct twl6040_platform_data *twl6040_data, int twl6040_irq) +{ + /* PMIC part*/ + strncpy(omap4_i2c1_board_info[0].type, pmic_type, + sizeof(omap4_i2c1_board_info[0].type)); + omap4_i2c1_board_info[0].irq = OMAP44XX_IRQ_SYS_1N; + omap4_i2c1_board_info[0].platform_data = pmic_data; + + /* TWL6040 audio IC part */ + omap4_i2c1_board_info[1].irq = twl6040_irq; + omap4_i2c1_board_info[1].platform_data = twl6040_data; + + omap_register_i2c_bus(1, 400, omap4_i2c1_board_info, 2); + +} + void __init omap_pmic_late_init(void) { /* Init the OMAP TWL parameters (if PMIC has been registerd) */ - if (!pmic_i2c_board_info.irq) - return; - - omap3_twl_init(); - omap4_twl_init(); + if (pmic_i2c_board_info.irq) + omap3_twl_init(); + if (omap4_i2c1_board_info[0].irq) + omap4_twl_init(); } #if defined(CONFIG_ARCH_OMAP3) diff --git a/arch/arm/mach-omap2/twl-common.h b/arch/arm/mach-omap2/twl-common.h index 275dde8..0962748 100644 --- a/arch/arm/mach-omap2/twl-common.h +++ b/arch/arm/mach-omap2/twl-common.h @@ -29,6 +29,7 @@ struct twl4030_platform_data; +struct twl6040_platform_data; void omap_pmic_init(int bus, u32 clkrate, const char *pmic_type, int pmic_irq, struct twl4030_platform_data *pmic_data); @@ -46,12 +47,9 @@ static inline void omap3_pmic_init(const char *pmic_type, omap_pmic_init(1, 2600, pmic_type, INT_34XX_SYS_NIRQ, pmic_data); } -static inline void omap4_pmic_init(const char *pmic_type, - struct twl4030_platform_data *pmic_data) -{ - /* Phoenix Audio IC needs I2C1 to start with 400 KHz or less */ - omap_pmic_init(1, 400, pmic_type, OMAP44XX_IRQ_SYS_1N, pmic_data); -} +void omap4_pmic_init(const char *pmic_type, + struct twl4030_platform_data *pmic_data, + struct twl6040_platform_data *audio_data, int twl6040_irq); void omap3_pmic_get_config(struct twl4030_platform_data *pmic_data, u32 pdata_flags, u32 regulators_flags); diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index 2d78779..7faf4a7 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -380,8 +380,7 @@ config INPUT_TWL4030_VIBRA config INPUT_TWL6040_VIBRA tristate "Support for TWL6040 Vibrator" - depends on TWL4030_CORE - select TWL6040_CORE + depends on TWL6040_CORE select INPUT_FF_MEMLESS help This option enables support for TWL6040 Vibrator Driver. diff --git a/drivers/input/misc/twl6040-vibra.c b/drivers/input/misc/twl6040-vibra.c index 45874fe..14e94f5 100644 --- a/drivers/input/misc/twl6040-vibra.c +++ b/drivers/input/misc/twl6040-vibra.c @@ -28,7 +28,7 @@ #include #include #include -#include +#include #include #include #include @@ -257,7 +257,7 @@ static SIMPLE_DEV_PM_OPS(twl6040_vibra_pm_ops, twl6040_vibra_suspend, NULL); static int __devinit twl6040_vibra_probe(struct platform_device *pdev) { - struct twl4030_vibra_data *pdata = pdev->dev.platform_data; + struct twl6040_vibra_data *pdata = pdev->dev.platform_data; struct vibra_info *info; int ret; diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 29f463c..11e4438 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -268,10 +268,17 @@ config TWL6030_PWM This is used to control charging LED brightness. config TWL6040_CORE - bool - depends on TWL4030_CORE && GENERIC_HARDIRQS + bool "Support for TWL6040 audio codec" + depends on I2C=y && GENERIC_HARDIRQS select MFD_CORE + select REGMAP_I2C default n + help + Say yes here if you want support for Texas Instruments TWL6040 audio + codec. + This driver provides common support for accessing the device, + additional drivers must be enabled in order to use the + functionality of the device (audio, vibra). config MFD_STMPE bool "Support STMicroelectronics STMPE" diff --git a/drivers/mfd/twl6040-core.c b/drivers/mfd/twl6040-core.c index b2d8e51..2d6beda 100644 --- a/drivers/mfd/twl6040-core.c +++ b/drivers/mfd/twl6040-core.c @@ -30,7 +30,9 @@ #include #include #include -#include +#include +#include +#include #include #include @@ -39,7 +41,7 @@ int twl6040_reg_read(struct twl6040 *twl6040, unsigned int reg) { int ret; - u8 val = 0; + unsigned int val; mutex_lock(&twl6040->io_mutex); /* Vibra control registers from cache */ @@ -47,7 +49,7 @@ int twl6040_reg_read(struct twl6040 *twl6040, unsigned int reg) reg == TWL6040_REG_VIBCTLR)) { val = twl6040->vibra_ctrl_cache[VIBRACTRL_MEMBER(reg)]; } else { - ret = twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &val, reg); + ret = regmap_read(twl6040->regmap, reg, &val); if (ret < 0) { mutex_unlock(&twl6040->io_mutex); return ret; @@ -64,7 +66,7 @@ int twl6040_reg_write(struct twl6040 *twl6040, unsigned int reg, u8 val) int ret; mutex_lock(&twl6040->io_mutex); - ret = twl_i2c_write_u8(TWL_MODULE_AUDIO_VOICE, val, reg); + ret = regmap_write(twl6040->regmap, reg, val); /* Cache the vibra control registers */ if (reg == TWL6040_REG_VIBCTLL || reg == TWL6040_REG_VIBCTLR) twl6040->vibra_ctrl_cache[VIBRACTRL_MEMBER(reg)] = val; @@ -77,16 +79,9 @@ EXPORT_SYMBOL(twl6040_reg_write); int twl6040_set_bits(struct twl6040 *twl6040, unsigned int reg, u8 mask) { int ret; - u8 val; mutex_lock(&twl6040->io_mutex); - ret = twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &val, reg); - if (ret) - goto out; - - val |= mask; - ret = twl_i2c_write_u8(TWL_MODULE_AUDIO_VOICE, val, reg); -out: + ret = regmap_update_bits(twl6040->regmap, reg, mask, mask); mutex_unlock(&twl6040->io_mutex); return ret; } @@ -95,16 +90,9 @@ EXPORT_SYMBOL(twl6040_set_bits); int twl6040_clear_bits(struct twl6040 *twl6040, unsigned int reg, u8 mask) { int ret; - u8 val; mutex_lock(&twl6040->io_mutex); - ret = twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &val, reg); - if (ret) - goto out; - - val &= ~mask; - ret = twl_i2c_write_u8(TWL_MODULE_AUDIO_VOICE, val, reg); -out: + ret = regmap_update_bits(twl6040->regmap, reg, mask, 0); mutex_unlock(&twl6040->io_mutex); return ret; } @@ -494,32 +482,58 @@ static struct resource twl6040_codec_rsrc[] = { }, }; -static int __devinit twl6040_probe(struct platform_device *pdev) +static bool twl6040_readable_reg(struct device *dev, unsigned int reg) { - struct twl4030_audio_data *pdata = pdev->dev.platform_data; + /* Register 0 is not readable */ + if (!reg) + return false; + return true; +} + +static struct regmap_config twl6040_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = TWL6040_REG_STATUS, /* 0x2e */ + + .readable_reg = twl6040_readable_reg, +}; + +static int __devinit twl6040_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct twl6040_platform_data *pdata = client->dev.platform_data; struct twl6040 *twl6040; struct mfd_cell *cell = NULL; int ret, children = 0; if (!pdata) { - dev_err(&pdev->dev, "Platform data is missing\n"); + dev_err(&client->dev, "Platform data is missing\n"); return -EINVAL; } /* In order to operate correctly we need valid interrupt config */ - if (!pdata->naudint_irq || !pdata->irq_base) { - dev_err(&pdev->dev, "Invalid IRQ configuration\n"); + if (!client->irq || !pdata->irq_base) { + dev_err(&client->dev, "Invalid IRQ configuration\n"); return -EINVAL; } - twl6040 = kzalloc(sizeof(struct twl6040), GFP_KERNEL); - if (!twl6040) - return -ENOMEM; + twl6040 = devm_kzalloc(&client->dev, sizeof(struct twl6040), + GFP_KERNEL); + if (!twl6040) { + ret = -ENOMEM; + goto err; + } + + twl6040->regmap = regmap_init_i2c(client, &twl6040_regmap_config); + if (IS_ERR(twl6040->regmap)) { + ret = PTR_ERR(twl6040->regmap); + goto err; + } - platform_set_drvdata(pdev, twl6040); + i2c_set_clientdata(client, twl6040); - twl6040->dev = &pdev->dev; - twl6040->irq = pdata->naudint_irq; + twl6040->dev = &client->dev; + twl6040->irq = client->irq; twl6040->irq_base = pdata->irq_base; mutex_init(&twl6040->mutex); @@ -588,12 +602,12 @@ static int __devinit twl6040_probe(struct platform_device *pdev) } if (children) { - ret = mfd_add_devices(&pdev->dev, pdev->id, twl6040->cells, + ret = mfd_add_devices(&client->dev, -1, twl6040->cells, children, NULL, 0); if (ret) goto mfd_err; } else { - dev_err(&pdev->dev, "No platform data found for children\n"); + dev_err(&client->dev, "No platform data found for children\n"); ret = -ENODEV; goto mfd_err; } @@ -608,14 +622,15 @@ gpio2_err: if (gpio_is_valid(twl6040->audpwron)) gpio_free(twl6040->audpwron); gpio1_err: - platform_set_drvdata(pdev, NULL); - kfree(twl6040); + i2c_set_clientdata(client, NULL); + regmap_exit(twl6040->regmap); +err: return ret; } -static int __devexit twl6040_remove(struct platform_device *pdev) +static int __devexit twl6040_remove(struct i2c_client *client) { - struct twl6040 *twl6040 = platform_get_drvdata(pdev); + struct twl6040 *twl6040 = i2c_get_clientdata(client); if (twl6040->power_count) twl6040_power(twl6040, 0); @@ -626,23 +641,30 @@ static int __devexit twl6040_remove(struct platform_device *pdev) free_irq(twl6040->irq_base + TWL6040_IRQ_READY, twl6040); twl6040_irq_exit(twl6040); - mfd_remove_devices(&pdev->dev); - platform_set_drvdata(pdev, NULL); - kfree(twl6040); + mfd_remove_devices(&client->dev); + i2c_set_clientdata(client, NULL); + regmap_exit(twl6040->regmap); return 0; } -static struct platform_driver twl6040_driver = { +static const struct i2c_device_id twl6040_i2c_id[] = { + { "twl6040", 0, }, + { }, +}; +MODULE_DEVICE_TABLE(i2c, twl6040_i2c_id); + +static struct i2c_driver twl6040_driver = { + .driver = { + .name = "twl6040", + .owner = THIS_MODULE, + }, .probe = twl6040_probe, .remove = __devexit_p(twl6040_remove), - .driver = { - .owner = THIS_MODULE, - .name = "twl6040", - }, + .id_table = twl6040_i2c_id, }; -module_platform_driver(twl6040_driver); +module_i2c_driver(twl6040_driver); MODULE_DESCRIPTION("TWL6040 MFD"); MODULE_AUTHOR("Misael Lopez Cruz "); diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h index 2463b61..1f90de0 100644 --- a/include/linux/i2c/twl.h +++ b/include/linux/i2c/twl.h @@ -666,23 +666,11 @@ struct twl4030_codec_data { unsigned int check_defaults:1; unsigned int reset_registers:1; unsigned int hs_extmute:1; - u16 hs_left_step; - u16 hs_right_step; - u16 hf_left_step; - u16 hf_right_step; void (*set_hs_extmute)(int mute); }; struct twl4030_vibra_data { unsigned int coexist; - - /* twl6040 */ - unsigned int vibldrv_res; /* left driver resistance */ - unsigned int vibrdrv_res; /* right driver resistance */ - unsigned int viblmotor_res; /* left motor resistance */ - unsigned int vibrmotor_res; /* right motor resistance */ - int vddvibl_uV; /* VDDVIBL volt, set 0 for fixed reg */ - int vddvibr_uV; /* VDDVIBR volt, set 0 for fixed reg */ }; struct twl4030_audio_data { diff --git a/include/linux/mfd/twl6040.h b/include/linux/mfd/twl6040.h index 9bc9ac6..b15b5f0 100644 --- a/include/linux/mfd/twl6040.h +++ b/include/linux/mfd/twl6040.h @@ -174,8 +174,35 @@ #define TWL6040_SYSCLK_SEL_LPPLL 0 #define TWL6040_SYSCLK_SEL_HPPLL 1 +struct twl6040_codec_data { + u16 hs_left_step; + u16 hs_right_step; + u16 hf_left_step; + u16 hf_right_step; +}; + +struct twl6040_vibra_data { + unsigned int vibldrv_res; /* left driver resistance */ + unsigned int vibrdrv_res; /* right driver resistance */ + unsigned int viblmotor_res; /* left motor resistance */ + unsigned int vibrmotor_res; /* right motor resistance */ + int vddvibl_uV; /* VDDVIBL volt, set 0 for fixed reg */ + int vddvibr_uV; /* VDDVIBR volt, set 0 for fixed reg */ +}; + +struct twl6040_platform_data { + int audpwron_gpio; /* audio power-on gpio */ + unsigned int irq_base; + + struct twl6040_codec_data *codec; + struct twl6040_vibra_data *vibra; +}; + +struct regmap; + struct twl6040 { struct device *dev; + struct regmap *regmap; struct mutex mutex; struct mutex io_mutex; struct mutex irq_mutex; diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 6508e8b..59d8efa 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -57,7 +57,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_TPA6130A2 if I2C select SND_SOC_TLV320DAC33 if I2C select SND_SOC_TWL4030 if TWL4030_CORE - select SND_SOC_TWL6040 if TWL4030_CORE + select SND_SOC_TWL6040 if TWL6040_CORE select SND_SOC_UDA134X select SND_SOC_UDA1380 if I2C select SND_SOC_WL1273 if MFD_WL1273_CORE @@ -276,7 +276,6 @@ config SND_SOC_TWL4030 tristate config SND_SOC_TWL6040 - select TWL6040_CORE tristate config SND_SOC_UDA134X diff --git a/sound/soc/codecs/twl6040.c b/sound/soc/codecs/twl6040.c index 2d8c6b8..dc7509b 100644 --- a/sound/soc/codecs/twl6040.c +++ b/sound/soc/codecs/twl6040.c @@ -26,7 +26,6 @@ #include #include #include -#include #include #include @@ -1528,7 +1527,7 @@ static int twl6040_resume(struct snd_soc_codec *codec) static int twl6040_probe(struct snd_soc_codec *codec) { struct twl6040_data *priv; - struct twl4030_codec_data *pdata = dev_get_platdata(codec->dev); + struct twl6040_codec_data *pdata = dev_get_platdata(codec->dev); struct platform_device *pdev = container_of(codec->dev, struct platform_device, dev); int ret = 0; diff --git a/sound/soc/omap/Kconfig b/sound/soc/omap/Kconfig index e00dd0b..deafbfa 100644 --- a/sound/soc/omap/Kconfig +++ b/sound/soc/omap/Kconfig @@ -97,7 +97,7 @@ config SND_OMAP_SOC_SDP3430 config SND_OMAP_SOC_OMAP_ABE_TWL6040 tristate "SoC Audio support for OMAP boards using ABE and twl6040 codec" - depends on TWL4030_CORE && SND_OMAP_SOC && ARCH_OMAP4 + depends on TWL6040_CORE && SND_OMAP_SOC && ARCH_OMAP4 select SND_OMAP_SOC_DMIC select SND_OMAP_SOC_MCPDM select SND_SOC_TWL6040 -- cgit v0.10.2 From 9cd70b347e9761ea2d2ac3d758c529a48a8193e6 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Mon, 16 Apr 2012 12:16:20 -0400 Subject: ext4: address scalability issue by removing extent cache statistics Andi Kleen and Tim Chen have reported that under certain circumstances the extent cache statistics are causing scalability problems due to cache line bounces. Signed-off-by: "Theodore Ts'o" Cc: stable@vger.kernel.org diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index ab2594a..0e01e90 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -1203,9 +1203,6 @@ struct ext4_sb_info { unsigned long s_ext_blocks; unsigned long s_ext_extents; #endif - /* ext4 extent cache stats */ - unsigned long extent_cache_hits; - unsigned long extent_cache_misses; /* for buddy allocator */ struct ext4_group_info ***s_group_info; diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 1421938..8a12cd2 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -2066,10 +2066,6 @@ static int ext4_ext_check_cache(struct inode *inode, ext4_lblk_t block, ret = 1; } errout: - if (!ret) - sbi->extent_cache_misses++; - else - sbi->extent_cache_hits++; trace_ext4_ext_in_cache(inode, block, ret); spin_unlock(&EXT4_I(inode)->i_block_reservation_lock); return ret; diff --git a/fs/ext4/super.c b/fs/ext4/super.c index ceebaf8..ef7db50 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -2366,18 +2366,6 @@ static ssize_t lifetime_write_kbytes_show(struct ext4_attr *a, EXT4_SB(sb)->s_sectors_written_start) >> 1))); } -static ssize_t extent_cache_hits_show(struct ext4_attr *a, - struct ext4_sb_info *sbi, char *buf) -{ - return snprintf(buf, PAGE_SIZE, "%lu\n", sbi->extent_cache_hits); -} - -static ssize_t extent_cache_misses_show(struct ext4_attr *a, - struct ext4_sb_info *sbi, char *buf) -{ - return snprintf(buf, PAGE_SIZE, "%lu\n", sbi->extent_cache_misses); -} - static ssize_t inode_readahead_blks_store(struct ext4_attr *a, struct ext4_sb_info *sbi, const char *buf, size_t count) @@ -2435,8 +2423,6 @@ static struct ext4_attr ext4_attr_##name = __ATTR(name, mode, show, store) EXT4_RO_ATTR(delayed_allocation_blocks); EXT4_RO_ATTR(session_write_kbytes); EXT4_RO_ATTR(lifetime_write_kbytes); -EXT4_RO_ATTR(extent_cache_hits); -EXT4_RO_ATTR(extent_cache_misses); EXT4_ATTR_OFFSET(inode_readahead_blks, 0644, sbi_ui_show, inode_readahead_blks_store, s_inode_readahead_blks); EXT4_RW_ATTR_SBI_UI(inode_goal, s_inode_goal); @@ -2452,8 +2438,6 @@ static struct attribute *ext4_attrs[] = { ATTR_LIST(delayed_allocation_blocks), ATTR_LIST(session_write_kbytes), ATTR_LIST(lifetime_write_kbytes), - ATTR_LIST(extent_cache_hits), - ATTR_LIST(extent_cache_misses), ATTR_LIST(inode_readahead_blks), ATTR_LIST(inode_goal), ATTR_LIST(mb_stats), -- cgit v0.10.2 From 1fcb57d0f6e1150003d222051aaaf4bc4a9ccc94 Mon Sep 17 00:00:00 2001 From: Keshava Munegowda Date: Mon, 19 Mar 2012 12:12:47 +0530 Subject: ARM: OMAP3: USB: Fix the EHCI ULPI PHY reset issue It is observed that the echi ports of 3430 sdp board are not working due to the random timing of programming the associated GPIOs of the ULPI PHYs of the EHCI for reset. If the PHYs are reset at during usbhs core driver, host ports will not work because EHCI driver is loaded after the resetting PHYs. The PHYs should be in reset state while initializing the EHCI controller. The code which does the GPIO pins associated with the PHYs are programmed to reset is moved from the USB host core driver to EHCI driver. Signed-off-by: Keshava Munegowda Reviewed-by: Partha Basak Acked-by: Felipe Balbi Tested-by: Igor Grinberg Signed-off-by: Samuel Ortiz diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c index 95a2e54..c8aae66 100644 --- a/drivers/mfd/omap-usb-host.c +++ b/drivers/mfd/omap-usb-host.c @@ -25,7 +25,6 @@ #include #include #include -#include #include #include @@ -502,19 +501,6 @@ static void omap_usbhs_init(struct device *dev) pm_runtime_get_sync(dev); spin_lock_irqsave(&omap->lock, flags); - if (pdata->ehci_data->phy_reset) { - if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0])) - gpio_request_one(pdata->ehci_data->reset_gpio_port[0], - GPIOF_OUT_INIT_LOW, "USB1 PHY reset"); - - if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1])) - gpio_request_one(pdata->ehci_data->reset_gpio_port[1], - GPIOF_OUT_INIT_LOW, "USB2 PHY reset"); - - /* Hold the PHY in RESET for enough time till DIR is high */ - udelay(10); - } - omap->usbhs_rev = usbhs_read(omap->uhh_base, OMAP_UHH_REVISION); dev_dbg(dev, "OMAP UHH_REVISION 0x%x\n", omap->usbhs_rev); @@ -593,39 +579,10 @@ static void omap_usbhs_init(struct device *dev) usbhs_omap_tll_init(dev, OMAP_TLL_CHANNEL_COUNT); } - if (pdata->ehci_data->phy_reset) { - /* Hold the PHY in RESET for enough time till - * PHY is settled and ready - */ - udelay(10); - - if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0])) - gpio_set_value - (pdata->ehci_data->reset_gpio_port[0], 1); - - if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1])) - gpio_set_value - (pdata->ehci_data->reset_gpio_port[1], 1); - } - spin_unlock_irqrestore(&omap->lock, flags); pm_runtime_put_sync(dev); } -static void omap_usbhs_deinit(struct device *dev) -{ - struct usbhs_hcd_omap *omap = dev_get_drvdata(dev); - struct usbhs_omap_platform_data *pdata = &omap->platdata; - - if (pdata->ehci_data->phy_reset) { - if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0])) - gpio_free(pdata->ehci_data->reset_gpio_port[0]); - - if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1])) - gpio_free(pdata->ehci_data->reset_gpio_port[1]); - } -} - /** * usbhs_omap_probe - initialize TI-based HCDs @@ -860,7 +817,6 @@ static int __devexit usbhs_omap_remove(struct platform_device *pdev) { struct usbhs_hcd_omap *omap = platform_get_drvdata(pdev); - omap_usbhs_deinit(&pdev->dev); iounmap(omap->tll_base); iounmap(omap->uhh_base); clk_put(omap->init_60m_fclk); diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index bba9850..5c78f9e 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -42,6 +42,7 @@ #include #include #include +#include /* EHCI Register Set */ #define EHCI_INSNREG04 (0xA0) @@ -191,6 +192,19 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) } } + if (pdata->phy_reset) { + if (gpio_is_valid(pdata->reset_gpio_port[0])) + gpio_request_one(pdata->reset_gpio_port[0], + GPIOF_OUT_INIT_LOW, "USB1 PHY reset"); + + if (gpio_is_valid(pdata->reset_gpio_port[1])) + gpio_request_one(pdata->reset_gpio_port[1], + GPIOF_OUT_INIT_LOW, "USB2 PHY reset"); + + /* Hold the PHY in RESET for enough time till DIR is high */ + udelay(10); + } + pm_runtime_enable(dev); pm_runtime_get_sync(dev); @@ -237,6 +251,19 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) /* root ports should always stay powered */ ehci_port_power(omap_ehci, 1); + if (pdata->phy_reset) { + /* Hold the PHY in RESET for enough time till + * PHY is settled and ready + */ + udelay(10); + + if (gpio_is_valid(pdata->reset_gpio_port[0])) + gpio_set_value(pdata->reset_gpio_port[0], 1); + + if (gpio_is_valid(pdata->reset_gpio_port[1])) + gpio_set_value(pdata->reset_gpio_port[1], 1); + } + return 0; err_add_hcd: @@ -259,8 +286,9 @@ err_io: */ static int ehci_hcd_omap_remove(struct platform_device *pdev) { - struct device *dev = &pdev->dev; - struct usb_hcd *hcd = dev_get_drvdata(dev); + struct device *dev = &pdev->dev; + struct usb_hcd *hcd = dev_get_drvdata(dev); + struct ehci_hcd_omap_platform_data *pdata = dev->platform_data; usb_remove_hcd(hcd); disable_put_regulator(dev->platform_data); @@ -269,6 +297,13 @@ static int ehci_hcd_omap_remove(struct platform_device *pdev) pm_runtime_put_sync(dev); pm_runtime_disable(dev); + if (pdata->phy_reset) { + if (gpio_is_valid(pdata->reset_gpio_port[0])) + gpio_free(pdata->reset_gpio_port[0]); + + if (gpio_is_valid(pdata->reset_gpio_port[1])) + gpio_free(pdata->reset_gpio_port[1]); + } return 0; } -- cgit v0.10.2 From 02269ab10f1130d35dc35db72ab026d16ba31abf Mon Sep 17 00:00:00 2001 From: Dmitry Artamonow Date: Thu, 12 Apr 2012 15:33:34 +0400 Subject: mfd: Fix asic3_gpio_to_irq Assumption that irq numbers of asic3 gpios start at IRQ_BOARD_START is certainly wrong - driver may as well use any other base for its irqs (consider for example the imaginary case of two ASIC3 chips onboard) Furthermore, some platforms even don't have IRQ_BOARD_START defined, so driver will fail to build on them: ------------------------------------------------------- drivers/mfd/asic3.c: In function 'asic3_gpio_to_irq': drivers/mfd/asic3.c:530: error: 'IRQ_BOARD_START' undeclared (first use in this function) drivers/mfd/asic3.c:530: error: (Each undeclared identifier is reported only once drivers/mfd/asic3.c:530: error: for each function it appears in.) ------------------------------------------------------- Fix it by using irq_base from driver data. Signed-off-by: Dmitry Artamonow Signed-off-by: Samuel Ortiz diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c index 1895cf9..1582c3d 100644 --- a/drivers/mfd/asic3.c +++ b/drivers/mfd/asic3.c @@ -527,7 +527,9 @@ static void asic3_gpio_set(struct gpio_chip *chip, static int asic3_gpio_to_irq(struct gpio_chip *chip, unsigned offset) { - return (offset < ASIC3_NUM_GPIOS) ? IRQ_BOARD_START + offset : -ENXIO; + struct asic3 *asic = container_of(chip, struct asic3, gpio); + + return (offset < ASIC3_NUM_GPIOS) ? asic->irq_base + offset : -ENXIO; } static __init int asic3_gpio_probe(struct platform_device *pdev, -- cgit v0.10.2 From 32998cc96a76cc3f42f66b55fec301377e439c66 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Sat, 14 Apr 2012 14:38:54 +0200 Subject: bcma: use fallback sprom if no on chip sprom is available bcma should check for a fallback sprom every time it can not find a sprom on the card itself or a normal external sprom mapped into the memory of the chip. When otp sprom support was introduced it tried to read out the sprom from the wireless chip also if no otp sprom was available. This caused a Data bus error in bcma_sprom_get() when reading out the sprom for the SoC. This fixes a regression introduced in commit: commit 10d8493cd9efd38b1947b7a74276dbdc8311aa1a Author: Arend van Spriel Date: Tue Mar 6 15:50:48 2012 +0100 bcma: add support for on-chip OTP memory used for SPROM storage This patch was tested on a Netgear WNDR3400 (Broadcom BCM4718 SoC). Reported-by: Nick Bowler Signed-off-by: Hauke Mehrtens Acked-by: Arend van Spriel Signed-off-by: John W. Linville diff --git a/drivers/bcma/sprom.c b/drivers/bcma/sprom.c index cdcf75c..3e2a600 100644 --- a/drivers/bcma/sprom.c +++ b/drivers/bcma/sprom.c @@ -404,16 +404,19 @@ int bcma_sprom_get(struct bcma_bus *bus) return -EOPNOTSUPP; if (!bcma_sprom_ext_available(bus)) { + bool sprom_onchip; + /* * External SPROM takes precedence so check * on-chip OTP only when no external SPROM * is present. */ - if (bcma_sprom_onchip_available(bus)) { + sprom_onchip = bcma_sprom_onchip_available(bus); + if (sprom_onchip) { /* determine offset */ offset = bcma_sprom_onchip_offset(bus); } - if (!offset) { + if (!offset || !sprom_onchip) { /* * Maybe there is no SPROM on the device? * Now we ask the arch code if there is some sprom -- cgit v0.10.2 From c291be9dba370ba696a0d482249a212cf5c15f45 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Mon, 16 Apr 2012 15:16:42 +0100 Subject: drm/i915: Hold mode_config lock whilst changing mode for lastclose() Upon lastclose(), we switch back to the fbcon configuration. This requires taking the mode_config lock in order to serialise the change with output probing elsewhere. Reported-by: Oleksij Rempel References: https://bugs.freedesktop.org/show_bug.cgi?id=48652 Signed-off-by: Chris Wilson Cc: stable@kernel.org Acked-by: Jesse Barnes Signed-Off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c index 19ecd78..6e9ee33 100644 --- a/drivers/gpu/drm/i915/intel_fb.c +++ b/drivers/gpu/drm/i915/intel_fb.c @@ -279,6 +279,8 @@ void intel_fb_restore_mode(struct drm_device *dev) struct drm_mode_config *config = &dev->mode_config; struct drm_plane *plane; + mutex_lock(&dev->mode_config.mutex); + ret = drm_fb_helper_restore_fbdev_mode(&dev_priv->fbdev->helper); if (ret) DRM_DEBUG("failed to restore crtc mode\n"); @@ -286,4 +288,6 @@ void intel_fb_restore_mode(struct drm_device *dev) /* Be sure to shut off any planes that may be active */ list_for_each_entry(plane, &config->plane_list, head) plane->funcs->disable_plane(plane); + + mutex_unlock(&dev->mode_config.mutex); } -- cgit v0.10.2 From b1994304fc399f5d3a5368c81111d713490c4799 Mon Sep 17 00:00:00 2001 From: Matt Fleming Date: Sun, 15 Apr 2012 16:06:04 +0100 Subject: x86, efi: Add dedicated EFI stub entry point The method used to work out whether we were booted by EFI firmware or via a boot loader is broken. Because efi_main() is always executed when booting from a boot loader we will dereference invalid pointers either on the stack (CONFIG_X86_32) or contained in %rdx (CONFIG_X86_64) when searching for an EFI System Table signature. Instead of dereferencing these invalid system table pointers, add a new entry point that is only used when booting from EFI firmware, when we know the pointer arguments will be valid. With this change legacy boot loaders will no longer execute efi_main(), but will instead skip EFI stub initialisation completely. [ hpa: Marking this for urgent/stable since it is a regression when the option is enabled; without the option the patch has no effect ] Signed-off-by: Matt Fleming Link: http://lkml.kernel.org/r/1334584744.26997.14.camel@mfleming-mobl1.ger.corp.intel.com Reported-by: Jordan Justen Signed-off-by: H. Peter Anvin Cc: v3.3 diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S index a055993..c85e3ac 100644 --- a/arch/x86/boot/compressed/head_32.S +++ b/arch/x86/boot/compressed/head_32.S @@ -33,6 +33,9 @@ __HEAD ENTRY(startup_32) #ifdef CONFIG_EFI_STUB + jmp preferred_addr + + .balign 0x10 /* * We don't need the return address, so set up the stack so * efi_main() can find its arugments. @@ -41,12 +44,17 @@ ENTRY(startup_32) call efi_main cmpl $0, %eax - je preferred_addr movl %eax, %esi - call 1f + jne 2f 1: + /* EFI init failed, so hang. */ + hlt + jmp 1b +2: + call 3f +3: popl %eax - subl $1b, %eax + subl $3b, %eax subl BP_pref_address(%esi), %eax add BP_code32_start(%esi), %eax leal preferred_addr(%eax), %eax diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S index 558d76c..87e03a1 100644 --- a/arch/x86/boot/compressed/head_64.S +++ b/arch/x86/boot/compressed/head_64.S @@ -200,18 +200,28 @@ ENTRY(startup_64) * entire text+data+bss and hopefully all of memory. */ #ifdef CONFIG_EFI_STUB - pushq %rsi + /* + * The entry point for the PE/COFF executable is 0x210, so only + * legacy boot loaders will execute this jmp. + */ + jmp preferred_addr + + .org 0x210 mov %rcx, %rdi mov %rdx, %rsi call efi_main - popq %rsi - cmpq $0,%rax - je preferred_addr movq %rax,%rsi - call 1f + cmpq $0,%rax + jne 2f 1: + /* EFI init failed, so hang. */ + hlt + jmp 1b +2: + call 3f +3: popq %rax - subq $1b, %rax + subq $3b, %rax subq BP_pref_address(%rsi), %rax add BP_code32_start(%esi), %eax leaq preferred_addr(%rax), %rax diff --git a/arch/x86/boot/tools/build.c b/arch/x86/boot/tools/build.c index ed54976..24443a3 100644 --- a/arch/x86/boot/tools/build.c +++ b/arch/x86/boot/tools/build.c @@ -205,8 +205,13 @@ int main(int argc, char ** argv) put_unaligned_le32(file_sz, &buf[pe_header + 0x50]); #ifdef CONFIG_X86_32 - /* Address of entry point */ - put_unaligned_le32(i, &buf[pe_header + 0x28]); + /* + * Address of entry point. + * + * The EFI stub entry point is +16 bytes from the start of + * the .text section. + */ + put_unaligned_le32(i + 16, &buf[pe_header + 0x28]); /* .text size */ put_unaligned_le32(file_sz, &buf[pe_header + 0xb0]); @@ -217,9 +222,11 @@ int main(int argc, char ** argv) /* * Address of entry point. startup_32 is at the beginning and * the 64-bit entry point (startup_64) is always 512 bytes - * after. + * after. The EFI stub entry point is 16 bytes after that, as + * the first instruction allows legacy loaders to jump over + * the EFI stub initialisation */ - put_unaligned_le32(i + 512, &buf[pe_header + 0x28]); + put_unaligned_le32(i + 528, &buf[pe_header + 0x28]); /* .text size */ put_unaligned_le32(file_sz, &buf[pe_header + 0xc0]); -- cgit v0.10.2 From 68894632afb2729a1d8785c877840953894c7283 Mon Sep 17 00:00:00 2001 From: Andreas Herrmann Date: Mon, 2 Apr 2012 18:06:48 +0200 Subject: x86/platform: Remove incorrect error message in x86_default_fixup_cpu_id() It's only called from amd.c:srat_detect_node(). The introduced condition for calling the fixup code is true for all AMD multi-node processors, e.g. Magny-Cours and Interlagos. There we have 2 NUMA nodes on one socket. Thus there are cores having different numa-node-id but with equal phys_proc_id. There is no point to print error messages in such a situation. The confusing/misleading error message was introduced with commit 64be4c1c2428e148de6081af235e2418e6a66dda ("x86: Add x86_init platform override to fix up NUMA core numbering"). Remove the default fixup function (especially the error message) and replace it by a NULL pointer check, move the Numascale-specific condition for calling the fixup into the fixup-function itself and slightly adapt the comment. Signed-off-by: Andreas Herrmann Acked-by: Borislav Petkov Cc: Cc: Cc: Cc: Link: http://lkml.kernel.org/r/20120402160648.GR27684@alberich.amd.com Signed-off-by: Ingo Molnar diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h index baaca8d..764b66a 100644 --- a/arch/x86/include/asm/x86_init.h +++ b/arch/x86/include/asm/x86_init.h @@ -195,6 +195,5 @@ extern struct x86_msi_ops x86_msi; extern void x86_init_noop(void); extern void x86_init_uint_noop(unsigned int unused); -extern void x86_default_fixup_cpu_id(struct cpuinfo_x86 *c, int node); #endif diff --git a/arch/x86/kernel/apic/apic_numachip.c b/arch/x86/kernel/apic/apic_numachip.c index 899803e..23e7542 100644 --- a/arch/x86/kernel/apic/apic_numachip.c +++ b/arch/x86/kernel/apic/apic_numachip.c @@ -207,8 +207,11 @@ static void __init map_csrs(void) static void fixup_cpu_id(struct cpuinfo_x86 *c, int node) { - c->phys_proc_id = node; - per_cpu(cpu_llc_id, smp_processor_id()) = node; + + if (c->phys_proc_id != node) { + c->phys_proc_id = node; + per_cpu(cpu_llc_id, smp_processor_id()) = node; + } } static int __init numachip_system_init(void) diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index 1248f9c..1c67ca1 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -353,10 +353,11 @@ static void __cpuinit srat_detect_node(struct cpuinfo_x86 *c) node = per_cpu(cpu_llc_id, cpu); /* - * If core numbers are inconsistent, it's likely a multi-fabric platform, - * so invoke platform-specific handler + * On multi-fabric platform (e.g. Numascale NumaChip) a + * platform-specific handler needs to be called to fixup some + * IDs of the CPU. */ - if (c->phys_proc_id != node) + if (x86_cpuinit.fixup_cpu_id) x86_cpuinit.fixup_cpu_id(c, node); if (!node_online(node)) { diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 67e2583..cf79302 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -1163,15 +1163,6 @@ static void dbg_restore_debug_regs(void) #endif /* ! CONFIG_KGDB */ /* - * Prints an error where the NUMA and configured core-number mismatch and the - * platform didn't override this to fix it up - */ -void __cpuinit x86_default_fixup_cpu_id(struct cpuinfo_x86 *c, int node) -{ - pr_err("NUMA core number %d differs from configured core number %d\n", node, c->phys_proc_id); -} - -/* * cpu_init() initializes state that is per-CPU. Some data is already * initialized (naturally) in the bootstrap process, such as the GDT * and IDT. We reload them nevertheless, this function acts as a diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c index e9f265f..9cf71d0 100644 --- a/arch/x86/kernel/x86_init.c +++ b/arch/x86/kernel/x86_init.c @@ -93,7 +93,6 @@ struct x86_init_ops x86_init __initdata = { struct x86_cpuinit_ops x86_cpuinit __cpuinitdata = { .early_percpu_clock_init = x86_init_noop, .setup_percpu_clockev = setup_secondary_APIC_clock, - .fixup_cpu_id = x86_default_fixup_cpu_id, }; static void default_nmi_init(void) { }; -- cgit v0.10.2 From 6ffd7bdbf8516d691974d21098278af65d4817a5 Mon Sep 17 00:00:00 2001 From: Otavio Salvador Date: Wed, 11 Apr 2012 09:44:30 -0300 Subject: perf tools: Drop CROSS_COMPILE from flex and bison calls The flex and bison tools generate arch-independent C code so its binaries are not prefixed with the target-arch prefix. With this patch the Linux 3.4-rc2 can be successfuly build on OE-Core. Signed-off-by: Otavio Salvador Link: http://lkml.kernel.org/r/1334148270-13139-1-git-send-email-otavio@ossystems.com.br Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 03059e7..9bf3fc7 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -234,8 +234,8 @@ endif export PERL_PATH -FLEX = $(CROSS_COMPILE)flex -BISON= $(CROSS_COMPILE)bison +FLEX = flex +BISON= bison $(OUTPUT)util/parse-events-flex.c: util/parse-events.l $(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/parse-events-flex.h -t util/parse-events.l > $(OUTPUT)util/parse-events-flex.c -- cgit v0.10.2 From d22053cdbd914a6c97ea101adf411a8fd7e282ad Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Mon, 16 Apr 2012 12:07:02 -0400 Subject: nfsd: include cld.h in the headers_install target The cld.h file contains the definition of the upcall format to talk with nfsdcld. When I added the file though, I neglected to add it to the headers-y target, so make headers_install wasn't installing it. Signed-off-by: Jeff Layton Signed-off-by: J. Bruce Fields diff --git a/include/linux/nfsd/Kbuild b/include/linux/nfsd/Kbuild index b8d4001..5b7d84a 100644 --- a/include/linux/nfsd/Kbuild +++ b/include/linux/nfsd/Kbuild @@ -1,3 +1,4 @@ +header-y += cld.h header-y += debug.h header-y += export.h header-y += nfsfh.h -- cgit v0.10.2 From 82ea267f7dc853a5e6a724916a70a10656efdfc2 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Mon, 16 Apr 2012 21:24:32 +0200 Subject: mfd: Fix modular builds of rc5t583 regulator support The combination of commit 1b1247dd75aa5cf5fae54a3bec7280046e9c7957 "mfd: Add support for RICOH PMIC RC5T583" and commit 6ffc3270210efa2bea526953a142ffc908f5bd86 "regulator: Add support for RICOH PMIC RC5T583 regulator" are causing the i386 allmodconfig builds to fail with this: ERROR: "rc5t583_update" [drivers/regulator/rc5t583-regulator.ko] undefined! ERROR: "rc5t583_set_bits" [drivers/regulator/rc5t583-regulator.ko] undefined! ERROR: "rc5t583_clear_bits" [drivers/regulator/rc5t583-regulator.ko] undefined! ERROR: "rc5t583_read" [drivers/regulator/rc5t583-regulator.ko] undefined! and this: ERROR: "rc5t583_ext_power_req_config" [drivers/regulator/rc5t583-regulator.ko] undefined! For the 1st four, make the simple ops static inline, instead of polluting the namespace with trivial exports. For the last one, add an EXPORT_SYMBOL. Signed-off-by: Paul Gortmaker Signed-off-by: Samuel Ortiz diff --git a/drivers/mfd/rc5t583.c b/drivers/mfd/rc5t583.c index 99ef944..44afae0 100644 --- a/drivers/mfd/rc5t583.c +++ b/drivers/mfd/rc5t583.c @@ -80,44 +80,6 @@ static struct mfd_cell rc5t583_subdevs[] = { {.name = "rc5t583-key", } }; -int rc5t583_write(struct device *dev, uint8_t reg, uint8_t val) -{ - struct rc5t583 *rc5t583 = dev_get_drvdata(dev); - return regmap_write(rc5t583->regmap, reg, val); -} - -int rc5t583_read(struct device *dev, uint8_t reg, uint8_t *val) -{ - struct rc5t583 *rc5t583 = dev_get_drvdata(dev); - unsigned int ival; - int ret; - ret = regmap_read(rc5t583->regmap, reg, &ival); - if (!ret) - *val = (uint8_t)ival; - return ret; -} - -int rc5t583_set_bits(struct device *dev, unsigned int reg, - unsigned int bit_mask) -{ - struct rc5t583 *rc5t583 = dev_get_drvdata(dev); - return regmap_update_bits(rc5t583->regmap, reg, bit_mask, bit_mask); -} - -int rc5t583_clear_bits(struct device *dev, unsigned int reg, - unsigned int bit_mask) -{ - struct rc5t583 *rc5t583 = dev_get_drvdata(dev); - return regmap_update_bits(rc5t583->regmap, reg, bit_mask, 0); -} - -int rc5t583_update(struct device *dev, unsigned int reg, - unsigned int val, unsigned int mask) -{ - struct rc5t583 *rc5t583 = dev_get_drvdata(dev); - return regmap_update_bits(rc5t583->regmap, reg, mask, val); -} - static int __rc5t583_set_ext_pwrreq1_control(struct device *dev, int id, int ext_pwr, int slots) { @@ -197,6 +159,7 @@ int rc5t583_ext_power_req_config(struct device *dev, int ds_id, ds_id, ext_pwr_req); return 0; } +EXPORT_SYMBOL(rc5t583_ext_power_req_config); static int rc5t583_clear_ext_power_req(struct rc5t583 *rc5t583, struct rc5t583_platform_data *pdata) diff --git a/include/linux/mfd/rc5t583.h b/include/linux/mfd/rc5t583.h index a2c6160..0b64b19 100644 --- a/include/linux/mfd/rc5t583.h +++ b/include/linux/mfd/rc5t583.h @@ -26,6 +26,7 @@ #include #include +#include #define RC5T583_MAX_REGS 0xF8 @@ -279,14 +280,44 @@ struct rc5t583_platform_data { bool enable_shutdown; }; -int rc5t583_write(struct device *dev, u8 reg, uint8_t val); -int rc5t583_read(struct device *dev, uint8_t reg, uint8_t *val); -int rc5t583_set_bits(struct device *dev, unsigned int reg, - unsigned int bit_mask); -int rc5t583_clear_bits(struct device *dev, unsigned int reg, - unsigned int bit_mask); -int rc5t583_update(struct device *dev, unsigned int reg, - unsigned int val, unsigned int mask); +static inline int rc5t583_write(struct device *dev, uint8_t reg, uint8_t val) +{ + struct rc5t583 *rc5t583 = dev_get_drvdata(dev); + return regmap_write(rc5t583->regmap, reg, val); +} + +static inline int rc5t583_read(struct device *dev, uint8_t reg, uint8_t *val) +{ + struct rc5t583 *rc5t583 = dev_get_drvdata(dev); + unsigned int ival; + int ret; + ret = regmap_read(rc5t583->regmap, reg, &ival); + if (!ret) + *val = (uint8_t)ival; + return ret; +} + +static inline int rc5t583_set_bits(struct device *dev, unsigned int reg, + unsigned int bit_mask) +{ + struct rc5t583 *rc5t583 = dev_get_drvdata(dev); + return regmap_update_bits(rc5t583->regmap, reg, bit_mask, bit_mask); +} + +static inline int rc5t583_clear_bits(struct device *dev, unsigned int reg, + unsigned int bit_mask) +{ + struct rc5t583 *rc5t583 = dev_get_drvdata(dev); + return regmap_update_bits(rc5t583->regmap, reg, bit_mask, 0); +} + +static inline int rc5t583_update(struct device *dev, unsigned int reg, + unsigned int val, unsigned int mask) +{ + struct rc5t583 *rc5t583 = dev_get_drvdata(dev); + return regmap_update_bits(rc5t583->regmap, reg, mask, val); +} + int rc5t583_ext_power_req_config(struct device *dev, int deepsleep_id, int ext_pwr_req, int deepsleep_slot_nr); int rc5t583_irq_init(struct rc5t583 *rc5t583, int irq, int irq_base); -- cgit v0.10.2 From a49bcabedc18319f673319d5e71b5751e3978179 Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Wed, 11 Apr 2012 23:23:41 +0200 Subject: can: usb: PCAN-USB Pro: fix mem leaks in pcan_usb_pro_init() on error paths If either call to pcan_usb_pro_send_req() in drivers/net/can/usb/peak_usb/pcan_usb_pro.c::pcan_usb_pro_init() fails, we'll leak the memory we allocated to 'usb_if' with kzalloc() when the 'usb_if' variable goes out of scope without having been assigned to anything as we 'return err;'. Fix this by adding appropriate kfree(usb_if) calls to the error paths. Signed-off-by: Jesper Juhl Acked-by: Stephane Grosjean Signed-off-by: Marc Kleine-Budde diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c index 5234586..629c4ba 100644 --- a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c +++ b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c @@ -875,6 +875,7 @@ static int pcan_usb_pro_init(struct peak_usb_device *dev) PCAN_USBPRO_INFO_FW, &fi, sizeof(fi)); if (err) { + kfree(usb_if); dev_err(dev->netdev->dev.parent, "unable to read %s firmware info (err %d)\n", pcan_usb_pro.name, err); @@ -885,6 +886,7 @@ static int pcan_usb_pro_init(struct peak_usb_device *dev) PCAN_USBPRO_INFO_BL, &bi, sizeof(bi)); if (err) { + kfree(usb_if); dev_err(dev->netdev->dev.parent, "unable to read %s bootloader info (err %d)\n", pcan_usb_pro.name, err); -- cgit v0.10.2 From 348f0fc238efb441a28e7644c51f9fd3001b228a Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Mon, 16 Apr 2012 15:41:28 -0400 Subject: tracing: Fix regression with tracing_on The change to make tracing_on affect only the ftrace ring buffer, caused a bug where it wont affect any ring buffer. The problem was that the buffer of the trace_array was passed to the write function and not the trace array itself. The trace_array can change the buffer when running a latency tracer. If this happens, then the buffer being disabled may not be the buffer currently used by ftrace. This will cause the tracing_on file to become useless. The simple fix is to pass the trace_array to the write function instead of the buffer. Then the actual buffer may be changed. Signed-off-by: Steven Rostedt diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index ed7b5d1..2a22255 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -4629,7 +4629,8 @@ static ssize_t rb_simple_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *ppos) { - struct ring_buffer *buffer = filp->private_data; + struct trace_array *tr = filp->private_data; + struct ring_buffer *buffer = tr->buffer; char buf[64]; int r; @@ -4647,7 +4648,8 @@ static ssize_t rb_simple_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos) { - struct ring_buffer *buffer = filp->private_data; + struct trace_array *tr = filp->private_data; + struct ring_buffer *buffer = tr->buffer; unsigned long val; int ret; @@ -4734,7 +4736,7 @@ static __init int tracer_init_debugfs(void) &trace_clock_fops); trace_create_file("tracing_on", 0644, d_tracer, - global_trace.buffer, &rb_simple_fops); + &global_trace, &rb_simple_fops); #ifdef CONFIG_DYNAMIC_FTRACE trace_create_file("dyn_ftrace_total_info", 0444, d_tracer, -- cgit v0.10.2 From c06a9ebdb7a4f4823d4225fe789d8c20a1d534eb Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Mon, 16 Apr 2012 13:35:11 -0600 Subject: checkpatch: revert --strict test for net/ and drivers/net block comment style Revert the --strict test for the old preferred block comment style in drivers/net and net/ Reported-by: Ingo Molnar Signed-off-by: Joe Perches Signed-off-by: Linus Torvalds diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index de639ee..faea0ec 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -1869,12 +1869,6 @@ sub process { "No space is necessary after a cast\n" . $hereprev); } - if ($rawline =~ /^\+[ \t]*\/\*[ \t]*$/ && - $prevrawline =~ /^\+[ \t]*$/) { - CHK("BLOCK_COMMENT_STYLE", - "Don't begin block comments with only a /* line, use /* comment...\n" . $hereprev); - } - # check for spaces at the beginning of a line. # Exceptions: # 1) within comments -- cgit v0.10.2 From 57f73c2c89a5d3b2ed87201c8100d1fa989a1a65 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Mon, 16 Apr 2012 18:55:26 -0400 Subject: ext4: fix handling of journalled quota options Commit 26092bf5 broke handling of journalled quota mount options by trying to parse argument of every mount option as a number. Fix this by dealing with the quota options before we call match_int(). Thanks to Jan Kara for discovering this regression. Signed-off-by: "Theodore Ts'o" Reviewed-by: Jan Kara diff --git a/fs/ext4/super.c b/fs/ext4/super.c index ef7db50..6da1935 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1305,20 +1305,20 @@ static int set_qf_name(struct super_block *sb, int qtype, substring_t *args) ext4_msg(sb, KERN_ERR, "Cannot change journaled " "quota options when quota turned on"); - return 0; + return -1; } qname = match_strdup(args); if (!qname) { ext4_msg(sb, KERN_ERR, "Not enough memory for storing quotafile name"); - return 0; + return -1; } if (sbi->s_qf_names[qtype] && strcmp(sbi->s_qf_names[qtype], qname)) { ext4_msg(sb, KERN_ERR, "%s quota file already specified", QTYPE2NAME(qtype)); kfree(qname); - return 0; + return -1; } sbi->s_qf_names[qtype] = qname; if (strchr(sbi->s_qf_names[qtype], '/')) { @@ -1326,7 +1326,7 @@ static int set_qf_name(struct super_block *sb, int qtype, substring_t *args) "quotafile must be on filesystem root"); kfree(sbi->s_qf_names[qtype]); sbi->s_qf_names[qtype] = NULL; - return 0; + return -1; } set_opt(sb, QUOTA); return 1; @@ -1341,7 +1341,7 @@ static int clear_qf_name(struct super_block *sb, int qtype) sbi->s_qf_names[qtype]) { ext4_msg(sb, KERN_ERR, "Cannot change journaled quota options" " when quota turned on"); - return 0; + return -1; } /* * The space will be released later when all options are confirmed @@ -1450,6 +1450,16 @@ static int handle_mount_opt(struct super_block *sb, char *opt, int token, const struct mount_opts *m; int arg = 0; +#ifdef CONFIG_QUOTA + if (token == Opt_usrjquota) + return set_qf_name(sb, USRQUOTA, &args[0]); + else if (token == Opt_grpjquota) + return set_qf_name(sb, GRPQUOTA, &args[0]); + else if (token == Opt_offusrjquota) + return clear_qf_name(sb, USRQUOTA); + else if (token == Opt_offgrpjquota) + return clear_qf_name(sb, GRPQUOTA); +#endif if (args->from && match_int(args, &arg)) return -1; switch (token) { @@ -1549,18 +1559,6 @@ static int handle_mount_opt(struct super_block *sb, char *opt, int token, sbi->s_mount_opt |= m->mount_opt; } #ifdef CONFIG_QUOTA - } else if (token == Opt_usrjquota) { - if (!set_qf_name(sb, USRQUOTA, &args[0])) - return -1; - } else if (token == Opt_grpjquota) { - if (!set_qf_name(sb, GRPQUOTA, &args[0])) - return -1; - } else if (token == Opt_offusrjquota) { - if (!clear_qf_name(sb, USRQUOTA)) - return -1; - } else if (token == Opt_offgrpjquota) { - if (!clear_qf_name(sb, GRPQUOTA)) - return -1; } else if (m->flags & MOPT_QFMT) { if (sb_any_quota_loaded(sb) && sbi->s_jquota_fmt != m->mount_opt) { -- cgit v0.10.2 From 089f9fba56faf33cc6dd2a6442b7ac92c58b8209 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 16 Apr 2012 22:48:15 +0200 Subject: i387: ptrace breaks the lazy-fpu-restore logic Starting from 7e16838d "i387: support lazy restore of FPU state" we assume that fpu_owner_task doesn't need restore_fpu_checking() on the context switch, its FPU state should match what we already have in the FPU on this CPU. However, debugger can change the tracee's FPU state, in this case we should reset fpu.last_cpu to ensure fpu_lazy_restore() can't return true. Change init_fpu() to do this, it is called by user_regset->set() methods. Reported-by: Jan Kratochvil Suggested-by: Linus Torvalds Signed-off-by: Oleg Nesterov Link: http://lkml.kernel.org/r/20120416204815.GB24884@redhat.com Cc: v3.3 Signed-off-by: H. Peter Anvin diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c index 7734bcb..2d6e649 100644 --- a/arch/x86/kernel/i387.c +++ b/arch/x86/kernel/i387.c @@ -235,6 +235,7 @@ int init_fpu(struct task_struct *tsk) if (tsk_used_math(tsk)) { if (HAVE_HWFP && tsk == current) unlazy_fpu(tsk); + tsk->thread.fpu.last_cpu = ~0; return 0; } -- cgit v0.10.2 From c76f39bddb84f93f70a5520d9253ec0317bec216 Mon Sep 17 00:00:00 2001 From: "Luck, Tony" Date: Mon, 16 Apr 2012 16:28:01 -0700 Subject: ia64: fix futex_atomic_cmpxchg_inatomic() Michel Lespinasse cleaned up the futex calling conventions in commit 37a9d912b24f ("futex: Sanitize cmpxchg_futex_value_locked API"). But the ia64 implementation was subtly broken. Gcc does not know that register "r8" will be updated by the fault handler if the cmpxchg instruction takes an exception. So it feels safe in letting the initialization of r8 slide to after the cmpxchg. Result: we always return 0 whether the user address faulted or not. Fix by moving the initialization of r8 into the __asm__ code so gcc won't move it. Reported-by: Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=42757 Tested-by: Acked-by: Michel Lespinasse Cc: stable@vger.kernel.org # v2.6.39+ Signed-off-by: Tony Luck Signed-off-by: Linus Torvalds diff --git a/arch/ia64/include/asm/futex.h b/arch/ia64/include/asm/futex.h index 0ab82cc..d2bf1fd 100644 --- a/arch/ia64/include/asm/futex.h +++ b/arch/ia64/include/asm/futex.h @@ -106,15 +106,16 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, return -EFAULT; { - register unsigned long r8 __asm ("r8") = 0; + register unsigned long r8 __asm ("r8"); unsigned long prev; __asm__ __volatile__( " mf;; \n" - " mov ar.ccv=%3;; \n" - "[1:] cmpxchg4.acq %0=[%1],%2,ar.ccv \n" + " mov %0=r0 \n" + " mov ar.ccv=%4;; \n" + "[1:] cmpxchg4.acq %1=[%2],%3,ar.ccv \n" " .xdata4 \"__ex_table\", 1b-., 2f-. \n" "[2:]" - : "=r" (prev) + : "=r" (r8), "=r" (prev) : "r" (uaddr), "r" (newval), "rO" ((long) (unsigned) oldval) : "memory"); -- cgit v0.10.2 From 5191d566c023079fa283adc48b71854e9d74ffd5 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Mon, 16 Apr 2012 19:21:39 -0700 Subject: Documentation: maintainer change I'm dropping off as Documentation/ maintainer. Rob Landley has agreed to take it over. Thanks, Rob. I'll still be around reviewing patches and testing. Signed-off-by: Randy Dunlap Acked-by: Rob Landley Signed-off-by: Linus Torvalds diff --git a/MAINTAINERS b/MAINTAINERS index b0f1073..1a2f8f5 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2321,9 +2321,9 @@ S: Supported F: drivers/acpi/dock.c DOCUMENTATION -M: Randy Dunlap +M: Rob Landley L: linux-doc@vger.kernel.org -T: quilt http://xenotime.net/kernel-doc-patches/current/ +T: TBD S: Maintained F: Documentation/ -- cgit v0.10.2 From a6cb9ee7cabe68002c3f2ab07224ea27d2617cf1 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Mon, 16 Apr 2012 23:07:50 +0200 Subject: PCI: Retry BARs restoration for Type 0 headers only Some shortcomings introduced into pci_restore_state() by commit 26f41062f28d ("PCI: check for pci bar restore completion and retry") have been fixed by recent commit ebfc5b802fa76 ("PCI: Fix regression in pci_restore_state(), v3"), but that commit treats all PCI devices as those with Type 0 configuration headers. That is not entirely correct, because Type 1 and Type 2 headers have different layouts. In particular, the area occupied by BARs in Type 0 config headers contains the secondary status register in Type 1 ones and it doesn't make sense to retry the restoration of that register even if the value read back from it after a write is not the same as the written one (it very well may be different). For this reason, make pci_restore_state() only retry the restoration of BARs for Type 0 config headers. This effectively makes it behave as before commit 26f41062f28d for all header types except for Type 0. Tested-by: Mikko Vinni Signed-off-by: Rafael J. Wysocki Signed-off-by: Linus Torvalds diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index d20f133..111569c 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -991,8 +991,8 @@ static void pci_restore_config_dword(struct pci_dev *pdev, int offset, } } -static void pci_restore_config_space(struct pci_dev *pdev, int start, int end, - int retry) +static void pci_restore_config_space_range(struct pci_dev *pdev, + int start, int end, int retry) { int index; @@ -1002,6 +1002,18 @@ static void pci_restore_config_space(struct pci_dev *pdev, int start, int end, retry); } +static void pci_restore_config_space(struct pci_dev *pdev) +{ + if (pdev->hdr_type == PCI_HEADER_TYPE_NORMAL) { + pci_restore_config_space_range(pdev, 10, 15, 0); + /* Restore BARs before the command register. */ + pci_restore_config_space_range(pdev, 4, 9, 10); + pci_restore_config_space_range(pdev, 0, 3, 0); + } else { + pci_restore_config_space_range(pdev, 0, 15, 0); + } +} + /** * pci_restore_state - Restore the saved state of a PCI device * @dev: - PCI device that we're dealing with @@ -1015,13 +1027,7 @@ void pci_restore_state(struct pci_dev *dev) pci_restore_pcie_state(dev); pci_restore_ats_state(dev); - pci_restore_config_space(dev, 10, 15, 0); - /* - * The Base Address register should be programmed before the command - * register(s) - */ - pci_restore_config_space(dev, 4, 9, 10); - pci_restore_config_space(dev, 0, 3, 0); + pci_restore_config_space(dev); pci_restore_pcix_state(dev); pci_restore_msi_state(dev); -- cgit v0.10.2 From 244b65dbfede788f2fa3fe2463c44d0809e97c6b Mon Sep 17 00:00:00 2001 From: David Ward Date: Sun, 15 Apr 2012 12:31:45 +0000 Subject: net_sched: gred: Fix oops in gred_dump() in WRED mode A parameter set exists for WRED mode, called wred_set, to hold the same values for qavg and qidlestart across all VQs. The WRED mode values had been previously held in the VQ for the default DP. After these values were moved to wred_set, the VQ for the default DP was no longer created automatically (so that it could be omitted on purpose, to have packets in the default DP enqueued directly to the device without using RED). However, gred_dump() was overlooked during that change; in WRED mode it still reads qavg/qidlestart from the VQ for the default DP, which might not even exist. As a result, this command sequence will cause an oops: tc qdisc add dev $DEV handle $HANDLE parent $PARENT gred setup \ DPs 3 default 2 grio tc qdisc change dev $DEV handle $HANDLE gred DP 0 prio 8 $RED_OPTIONS tc qdisc change dev $DEV handle $HANDLE gred DP 1 prio 8 $RED_OPTIONS This fixes gred_dump() in WRED mode to use the values held in wred_set. Signed-off-by: David Ward Signed-off-by: David S. Miller diff --git a/net/sched/sch_gred.c b/net/sched/sch_gred.c index 0b15236..8179494 100644 --- a/net/sched/sch_gred.c +++ b/net/sched/sch_gred.c @@ -565,11 +565,8 @@ static int gred_dump(struct Qdisc *sch, struct sk_buff *skb) opt.packets = q->packetsin; opt.bytesin = q->bytesin; - if (gred_wred_mode(table)) { - q->vars.qidlestart = - table->tab[table->def]->vars.qidlestart; - q->vars.qavg = table->tab[table->def]->vars.qavg; - } + if (gred_wred_mode(table)) + gred_load_wred_set(table, q); opt.qave = red_calc_qavg(&q->parms, &q->vars, q->vars.qavg); -- cgit v0.10.2 From 4362aaf6054b9760652c7047cdf6fa852acb6cf7 Mon Sep 17 00:00:00 2001 From: David Ward Date: Mon, 16 Apr 2012 03:17:22 +0000 Subject: net_sched: red: Make minor corrections to comments Signed-off-by: David Ward Signed-off-by: David S. Miller diff --git a/include/net/red.h b/include/net/red.h index 77d4c37..ef46058 100644 --- a/include/net/red.h +++ b/include/net/red.h @@ -245,7 +245,7 @@ static inline unsigned long red_calc_qavg_from_idle_time(const struct red_parms * * dummy packets as a burst after idle time, i.e. * - * p->qavg *= (1-W)^m + * v->qavg *= (1-W)^m * * This is an apparently overcomplicated solution (f.e. we have to * precompute a table to make this calculation in reasonable time) @@ -279,7 +279,7 @@ static inline unsigned long red_calc_qavg_no_idle_time(const struct red_parms *p unsigned int backlog) { /* - * NOTE: p->qavg is fixed point number with point at Wlog. + * NOTE: v->qavg is fixed point number with point at Wlog. * The formula below is equvalent to floating point * version: * @@ -390,7 +390,7 @@ static inline void red_adaptative_algo(struct red_parms *p, struct red_vars *v) if (red_is_idling(v)) qavg = red_calc_qavg_from_idle_time(p, v); - /* p->qavg is fixed point number with point at Wlog */ + /* v->qavg is fixed point number with point at Wlog */ qavg >>= p->Wlog; if (qavg > p->target_max && p->max_P <= MAX_P_MAX) -- cgit v0.10.2 From a99ff7d0123b19ecad3b589480b6542716ab6b52 Mon Sep 17 00:00:00 2001 From: Stephane Fillod Date: Sun, 15 Apr 2012 11:38:29 +0000 Subject: net: usb: smsc75xx: fix mtu Make smsc75xx recalculate the hard_mtu after adjusting the hard_header_len. Without this, usbnet adjusts the MTU down to 1492 bytes, and the host is unable to receive standard 1500-byte frames from the device. Inspired by same fix on cdc_eem 78fb72f7936c01d5b426c03a691eca082b03f2b9. Tested on ARM/Omap3 with EVB-LAN7500-LC. Signed-off-by: Stephane Fillod Signed-off-by: David S. Miller diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c index 187d01c..a234948 100644 --- a/drivers/net/usb/smsc75xx.c +++ b/drivers/net/usb/smsc75xx.c @@ -1051,6 +1051,7 @@ static int smsc75xx_bind(struct usbnet *dev, struct usb_interface *intf) dev->net->ethtool_ops = &smsc75xx_ethtool_ops; dev->net->flags |= IFF_MULTICAST; dev->net->hard_header_len += SMSC75XX_TX_OVERHEAD; + dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len; return 0; } -- cgit v0.10.2 From 890fdf2a0cb88202d1427589db2cf29c1bdd3c1d Mon Sep 17 00:00:00 2001 From: Hiroaki SHIMODA Date: Sun, 15 Apr 2012 13:26:01 +0000 Subject: dummy: Add ndo_uninit(). In register_netdevice(), when ndo_init() is successful and later some error occurred, ndo_uninit() will be called. So dummy deivce is desirable to implement ndo_uninit() method to free percpu stats for this case. And, ndo_uninit() is also called along with dev->destructor() when device is unregistered, so in order to prevent dev->dstats from being freed twice, dev->destructor is modified to free_netdev(). Signed-off-by: Hiroaki SHIMODA Signed-off-by: David S. Miller diff --git a/drivers/net/dummy.c b/drivers/net/dummy.c index d5c6d92..442d91a 100644 --- a/drivers/net/dummy.c +++ b/drivers/net/dummy.c @@ -107,14 +107,14 @@ static int dummy_dev_init(struct net_device *dev) return 0; } -static void dummy_dev_free(struct net_device *dev) +static void dummy_dev_uninit(struct net_device *dev) { free_percpu(dev->dstats); - free_netdev(dev); } static const struct net_device_ops dummy_netdev_ops = { .ndo_init = dummy_dev_init, + .ndo_uninit = dummy_dev_uninit, .ndo_start_xmit = dummy_xmit, .ndo_validate_addr = eth_validate_addr, .ndo_set_rx_mode = set_multicast_list, @@ -128,7 +128,7 @@ static void dummy_setup(struct net_device *dev) /* Initialize the device structure. */ dev->netdev_ops = &dummy_netdev_ops; - dev->destructor = dummy_dev_free; + dev->destructor = free_netdev; /* Fill in device structure with ethernet-generic values. */ dev->tx_queue_len = 0; -- cgit v0.10.2 From 6b5e7d9ef793c55d72679f058514f33c4258f286 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sun, 15 Apr 2012 11:27:12 +0200 Subject: xen/grant-table: add error-handling code on failure of gnttab_resume Jump to the label ini_nomem as done on the failure of the page allocations above. The code at ini_nomem is modified to accommodate different return values. Signed-off-by: Julia Lawall Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c index 1cd94da..f805918 100644 --- a/drivers/xen/grant-table.c +++ b/drivers/xen/grant-table.c @@ -1026,6 +1026,7 @@ int gnttab_init(void) int i; unsigned int max_nr_glist_frames, nr_glist_frames; unsigned int nr_init_grefs; + int ret; nr_grant_frames = 1; boot_max_nr_grant_frames = __max_nr_grant_frames(); @@ -1044,12 +1045,16 @@ int gnttab_init(void) nr_glist_frames = (nr_grant_frames * GREFS_PER_GRANT_FRAME + RPP - 1) / RPP; for (i = 0; i < nr_glist_frames; i++) { gnttab_list[i] = (grant_ref_t *)__get_free_page(GFP_KERNEL); - if (gnttab_list[i] == NULL) + if (gnttab_list[i] == NULL) { + ret = -ENOMEM; goto ini_nomem; + } } - if (gnttab_resume() < 0) - return -ENODEV; + if (gnttab_resume() < 0) { + ret = -ENODEV; + goto ini_nomem; + } nr_init_grefs = nr_grant_frames * GREFS_PER_GRANT_FRAME; @@ -1067,7 +1072,7 @@ int gnttab_init(void) for (i--; i >= 0; i--) free_page((unsigned long)gnttab_list[i]); kfree(gnttab_list); - return -ENOMEM; + return ret; } EXPORT_SYMBOL_GPL(gnttab_init); -- cgit v0.10.2 From bfdd769ac51cb68cb99902192fac81bc67cb23b0 Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Tue, 17 Apr 2012 16:58:35 +1000 Subject: m68knommu: fix id number for second eth device on 5275 ColdFire The second ColdFire FEC ethernet device should have an id number of 1, not 0. Otherwise it clashes with the first FEC ethernet device. On booting a kernel on a 5275 based board you will get messages out of the kernel like this: <4>------------[ cut here ]------------ <4>WARNING: at fs/sysfs/dir.c:508 0x0a8b50() <4>sysfs: cannot create duplicate filename 'fec.0' And likely you won't be able to completely boot up after this at all. Signed-off-by: Greg Ungerer diff --git a/arch/m68k/platform/coldfire/device.c b/arch/m68k/platform/coldfire/device.c index fa50c48..7af9736 100644 --- a/arch/m68k/platform/coldfire/device.c +++ b/arch/m68k/platform/coldfire/device.c @@ -114,7 +114,7 @@ static struct resource mcf_fec1_resources[] = { static struct platform_device mcf_fec1 = { .name = "fec", - .id = 0, + .id = 1, .num_resources = ARRAY_SIZE(mcf_fec1_resources), .resource = mcf_fec1_resources, }; -- cgit v0.10.2 From 938ed25008d665d1dd937ca251d1aabb363113c6 Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Tue, 17 Apr 2012 17:06:34 +1000 Subject: m68knommu: make sure 2nd FEC eth interface pins are enabled on 5275 ColdFire The CONFIG_FEC2 define was removed from the kernel many versions ago. But it is still being used to set the multi-function pins when compiling for a ColdFire 527[45] SoC that has 2 ethernet interfaces. Remove the last remaining uses of this define, and so fix the setting of the pins for the 2nd ethernet interface. Signed-off-by: Greg Ungerer diff --git a/arch/m68k/configs/m5275evb_defconfig b/arch/m68k/configs/m5275evb_defconfig index 33c32ae..a1230e8 100644 --- a/arch/m68k/configs/m5275evb_defconfig +++ b/arch/m68k/configs/m5275evb_defconfig @@ -49,7 +49,6 @@ CONFIG_BLK_DEV_RAM=y CONFIG_NETDEVICES=y CONFIG_NET_ETHERNET=y CONFIG_FEC=y -CONFIG_FEC2=y # CONFIG_NETDEV_1000 is not set # CONFIG_NETDEV_10000 is not set CONFIG_PPP=y diff --git a/arch/m68k/platform/527x/config.c b/arch/m68k/platform/527x/config.c index 7ed848c..f91a532 100644 --- a/arch/m68k/platform/527x/config.c +++ b/arch/m68k/platform/527x/config.c @@ -74,9 +74,7 @@ static void __init m527x_fec_init(void) writew(par | 0xf00, MCF_IPSBAR + 0x100082); v = readb(MCF_IPSBAR + 0x100078); writeb(v | 0xc0, MCF_IPSBAR + 0x100078); -#endif -#ifdef CONFIG_FEC2 /* Set multi-function pins to ethernet mode for fec1 */ par = readw(MCF_IPSBAR + 0x100082); writew(par | 0xa0, MCF_IPSBAR + 0x100082); -- cgit v0.10.2 From fc1a93bd9bad32581bca1e66fb7b3cabad9b3361 Mon Sep 17 00:00:00 2001 From: Adam Jackson Date: Mon, 9 Apr 2012 17:49:36 -0400 Subject: intel_ips: Hush the i915 symbols message We can't control order here, and getting it inverted is harmless. So turn this down to dev_info() and leave a note about how to fix it in case userspace is insufficiently automagic. Bugzilla: https://bugzilla.redhat.com/794953 Signed-off-by: Adam Jackson Signed-off-by: Matthew Garrett diff --git a/drivers/platform/x86/intel_ips.c b/drivers/platform/x86/intel_ips.c index f7ba316e..0ffdb3c 100644 --- a/drivers/platform/x86/intel_ips.c +++ b/drivers/platform/x86/intel_ips.c @@ -1565,7 +1565,7 @@ static int ips_probe(struct pci_dev *dev, const struct pci_device_id *id) ips->poll_turbo_status = true; if (!ips_get_i915_syms(ips)) { - dev_err(&dev->dev, "failed to get i915 symbols, graphics turbo disabled\n"); + dev_info(&dev->dev, "failed to get i915 symbols, graphics turbo disabled until i915 loads\n"); ips->gpu_turbo_enabled = false; } else { dev_dbg(&dev->dev, "graphics turbo enabled\n"); -- cgit v0.10.2 From d62d421b071b08249361044d8e56c8b5c3ed6aa7 Mon Sep 17 00:00:00 2001 From: Martin Nyhus Date: Thu, 15 Mar 2012 18:25:48 +0100 Subject: dell-laptop: Terminate quirks list properly Add missing DMI_NONE entry to end of the quirks list so dmi_check_system() won't read past the end of the list. Signed-off-by: Martin Nyhus Signed-off-by: Matthew Garrett diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c index a05fc9c..e6c08ee 100644 --- a/drivers/platform/x86/dell-laptop.c +++ b/drivers/platform/x86/dell-laptop.c @@ -212,6 +212,7 @@ static struct dmi_system_id __devinitdata dell_quirks[] = { }, .driver_data = &quirk_dell_vostro_v130, }, + { } }; static struct calling_interface_buffer *buffer; -- cgit v0.10.2 From e7c72d888dac2c81003401d663bd8abd68e7c5cd Mon Sep 17 00:00:00 2001 From: Gleb Natapov Date: Tue, 17 Apr 2012 14:13:45 +0300 Subject: perf tools: Add 'G' and 'H' modifiers to event parsing They were dropped during conversion of event parser. Add test case to make sure this will not happen again. Signed-off-by: Gleb Natapov Acked-by: Jiri Olsa Cc: Avi Kivity Cc: Ingo Molnar Cc: Peter Zijlstra Cc: Jiri Olsa Link: http://lkml.kernel.org/r/20120417111345.GK11918@redhat.com Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/perf/builtin-test.c b/tools/perf/builtin-test.c index 1c5b980..223ffdc 100644 --- a/tools/perf/builtin-test.c +++ b/tools/perf/builtin-test.c @@ -851,6 +851,28 @@ static int test__checkevent_symbolic_name_modifier(struct perf_evlist *evlist) return test__checkevent_symbolic_name(evlist); } +static int test__checkevent_exclude_host_modifier(struct perf_evlist *evlist) +{ + struct perf_evsel *evsel = list_entry(evlist->entries.next, + struct perf_evsel, node); + + TEST_ASSERT_VAL("wrong exclude guest", !evsel->attr.exclude_guest); + TEST_ASSERT_VAL("wrong exclude host", evsel->attr.exclude_host); + + return test__checkevent_symbolic_name(evlist); +} + +static int test__checkevent_exclude_guest_modifier(struct perf_evlist *evlist) +{ + struct perf_evsel *evsel = list_entry(evlist->entries.next, + struct perf_evsel, node); + + TEST_ASSERT_VAL("wrong exclude guest", evsel->attr.exclude_guest); + TEST_ASSERT_VAL("wrong exclude host", !evsel->attr.exclude_host); + + return test__checkevent_symbolic_name(evlist); +} + static int test__checkevent_symbolic_alias_modifier(struct perf_evlist *evlist) { struct perf_evsel *evsel = list_entry(evlist->entries.next, @@ -1091,6 +1113,14 @@ static struct test__event_st { .name = "r1,syscalls:sys_enter_open:k,1:1:hp", .check = test__checkevent_list, }, + { + .name = "instructions:G", + .check = test__checkevent_exclude_host_modifier, + }, + { + .name = "instructions:H", + .check = test__checkevent_exclude_guest_modifier, + }, }; #define TEST__EVENTS_CNT (sizeof(test__events) / sizeof(struct test__event_st)) diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l index 05d766e..1fcf1bb 100644 --- a/tools/perf/util/parse-events.l +++ b/tools/perf/util/parse-events.l @@ -54,7 +54,7 @@ num_dec [0-9]+ num_hex 0x[a-fA-F0-9]+ num_raw_hex [a-fA-F0-9]+ name [a-zA-Z_*?][a-zA-Z0-9_*?]* -modifier_event [ukhp]{1,5} +modifier_event [ukhpGH]{1,8} modifier_bp [rwx] %% -- cgit v0.10.2 From 5509fea59bb1bad4ead7d9a194cb4555c1350e1c Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Fri, 6 Apr 2012 12:52:53 +0200 Subject: leds-atmel-pwm.c: Make pwmled_probe() __devinit Commit 892a884 (leds: convert led platform drivers to module_platform_driver) is omitting the section mismatch error: so change annotation of the probe function to __devinit instead of __init. Signed-off-by: Nicolas Ferre Cc: Richard Purdie Cc: Andrew Morton diff --git a/drivers/leds/leds-atmel-pwm.c b/drivers/leds/leds-atmel-pwm.c index 800243b..64ad702 100644 --- a/drivers/leds/leds-atmel-pwm.c +++ b/drivers/leds/leds-atmel-pwm.c @@ -35,7 +35,7 @@ static void pwmled_brightness(struct led_classdev *cdev, enum led_brightness b) * NOTE: we reuse the platform_data structure of GPIO leds, * but repurpose its "gpio" number as a PWM channel number. */ -static int __init pwmled_probe(struct platform_device *pdev) +static int __devinit pwmled_probe(struct platform_device *pdev) { const struct gpio_led_platform_data *pdata; struct pwmled *leds; -- cgit v0.10.2 From b548a27b2e92ad171cc8b8d00bac5e15bb2d2956 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Fri, 6 Apr 2012 14:35:38 +0200 Subject: USB: ohci-at91: change annotations for probe/remove functions Add __devinit and __devexit on *_probe() and *_remove() functions with proper modification of struct platform_driver. Signed-off-by: Nicolas Ferre Acked-by: Alan Stern Cc: linux-usb@vger.kernel.org diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index 09f597a..13ebeca 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -94,7 +94,7 @@ static void at91_stop_hc(struct platform_device *pdev) /*-------------------------------------------------------------------------*/ -static void usb_hcd_at91_remove (struct usb_hcd *, struct platform_device *); +static void __devexit usb_hcd_at91_remove (struct usb_hcd *, struct platform_device *); /* configure so an HC device and id are always provided */ /* always called with process context; sleeping is OK */ @@ -108,7 +108,7 @@ static void usb_hcd_at91_remove (struct usb_hcd *, struct platform_device *); * then invokes the start() method for the HCD associated with it * through the hotplug entry's driver_data. */ -static int usb_hcd_at91_probe(const struct hc_driver *driver, +static int __devinit usb_hcd_at91_probe(const struct hc_driver *driver, struct platform_device *pdev) { int retval; @@ -203,7 +203,7 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver, * context, "rmmod" or something similar. * */ -static void usb_hcd_at91_remove(struct usb_hcd *hcd, +static void __devexit usb_hcd_at91_remove(struct usb_hcd *hcd, struct platform_device *pdev) { usb_remove_hcd(hcd); @@ -545,7 +545,7 @@ static int __devinit ohci_at91_of_init(struct platform_device *pdev) /*-------------------------------------------------------------------------*/ -static int ohci_hcd_at91_drv_probe(struct platform_device *pdev) +static int __devinit ohci_hcd_at91_drv_probe(struct platform_device *pdev) { struct at91_usbh_data *pdata; int i; @@ -620,7 +620,7 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev) return usb_hcd_at91_probe(&ohci_at91_hc_driver, pdev); } -static int ohci_hcd_at91_drv_remove(struct platform_device *pdev) +static int __devexit ohci_hcd_at91_drv_remove(struct platform_device *pdev) { struct at91_usbh_data *pdata = pdev->dev.platform_data; int i; @@ -696,7 +696,7 @@ MODULE_ALIAS("platform:at91_ohci"); static struct platform_driver ohci_hcd_at91_driver = { .probe = ohci_hcd_at91_drv_probe, - .remove = ohci_hcd_at91_drv_remove, + .remove = __devexit_p(ohci_hcd_at91_drv_remove), .shutdown = usb_hcd_platform_shutdown, .suspend = ohci_hcd_at91_drv_suspend, .resume = ohci_hcd_at91_drv_resume, -- cgit v0.10.2 From 70756027b0a01cb0bebf2e20d8d28e8103025734 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Mon, 16 Apr 2012 10:58:12 +0200 Subject: USB: gadget/at91_udc: add gpio_to_irq() function to vbus interrupt Now that we are using irqdomains, we need to convert GPIO pins to Linux IRQ numbers using the gpio_to_irq() function. This call is added to request/free_irq calls. Signed-off-by: Nicolas Ferre Acked-by: Felipe Balbi Cc: linux-usb@vger.kernel.org diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index 0c935d7..9d7bcd9 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c @@ -1863,8 +1863,8 @@ static int __devinit at91udc_probe(struct platform_device *pdev) mod_timer(&udc->vbus_timer, jiffies + VBUS_POLL_TIMEOUT); } else { - if (request_irq(udc->board.vbus_pin, at91_vbus_irq, - 0, driver_name, udc)) { + if (request_irq(gpio_to_irq(udc->board.vbus_pin), + at91_vbus_irq, 0, driver_name, udc)) { DBG("request vbus irq %d failed\n", udc->board.vbus_pin); retval = -EBUSY; @@ -1886,7 +1886,7 @@ static int __devinit at91udc_probe(struct platform_device *pdev) return 0; fail4: if (gpio_is_valid(udc->board.vbus_pin) && !udc->board.vbus_polled) - free_irq(udc->board.vbus_pin, udc); + free_irq(gpio_to_irq(udc->board.vbus_pin), udc); fail3: if (gpio_is_valid(udc->board.vbus_pin)) gpio_free(udc->board.vbus_pin); @@ -1924,7 +1924,7 @@ static int __exit at91udc_remove(struct platform_device *pdev) device_init_wakeup(&pdev->dev, 0); remove_debug_file(udc); if (gpio_is_valid(udc->board.vbus_pin)) { - free_irq(udc->board.vbus_pin, udc); + free_irq(gpio_to_irq(udc->board.vbus_pin), udc); gpio_free(udc->board.vbus_pin); } free_irq(udc->udp_irq, udc); -- cgit v0.10.2 From f898fed0c27b2d46c3d8331e7825c25b6432b9f4 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Thu, 15 Mar 2012 11:31:58 +0100 Subject: dmaengine: Kconfig: fix Atmel at_hdmac entry Remove SoC dependency and make it generic for every Atmel ARM AT91. That will allow to select this driver for newer chips. Keep dependency on AT91 because of the use of an header file located in include/mach directory. Modify the comment to reflect this. Signed-off-by: Nicolas Ferre Acked-by: Vinod Koul diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index cf9da36..ef378b5 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -91,11 +91,10 @@ config DW_DMAC config AT_HDMAC tristate "Atmel AHB DMA support" - depends on ARCH_AT91SAM9RL || ARCH_AT91SAM9G45 + depends on ARCH_AT91 select DMA_ENGINE help - Support the Atmel AHB DMA controller. This can be integrated in - chips such as the Atmel AT91SAM9RL. + Support the Atmel AHB DMA controller. config FSL_DMA tristate "Freescale Elo and Elo Plus DMA support" -- cgit v0.10.2 From 92c38702e98e58438c3760ebb279c40bbca8bd5f Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Mon, 16 Apr 2012 12:12:09 -0700 Subject: rcu: Permit call_rcu() from CPU_DYING notifiers As of: 29494be71afe ("rcu,cleanup: simplify the code when cpu is dying") RCU adopts callbacks from the dying CPU in its CPU_DYING notifier, which means that any callbacks posted by later CPU_DYING notifiers are ignored until the CPU comes back online. A WARN_ON_ONCE() was added to __call_rcu() by: e56014000816 ("rcu: Simplify offline processing") to check for this condition. Although this condition did not trigger (at least as far as I know) during -next testing, it did recently trigger in mainline: https://lkml.org/lkml/2012/4/2/34 What is needed longer term is for RCU's CPU_DEAD notifier to adopt any callbacks that were posted by CPU_DYING notifiers, however, the Linux kernel has been running with this sort of thing happening for quite some time. So the only thing that qualifies as a regression is the WARN_ON_ONCE(), which this commit removes. Making RCU's CPU_DEAD notifier adopt callbacks posted by CPU_DYING notifiers is a topic for the 3.5 release of the Linux kernel. Reported-by: Sergey Senozhatsky Signed-off-by: Paul E. McKenney Signed-off-by: Paul E. McKenney diff --git a/kernel/rcutree.c b/kernel/rcutree.c index 1050d6d..d0c5baf 100644 --- a/kernel/rcutree.c +++ b/kernel/rcutree.c @@ -1820,7 +1820,6 @@ __call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu), * a quiescent state betweentimes. */ local_irq_save(flags); - WARN_ON_ONCE(cpu_is_offline(smp_processor_id())); rdp = this_cpu_ptr(rsp->rda); /* Add the callback to our list. */ -- cgit v0.10.2 From 63878acfafbc7a6ff90a2f8b3e31f0889bc61af6 Mon Sep 17 00:00:00 2001 From: Grazvydas Ignotas Date: Sat, 7 Apr 2012 00:53:21 +0300 Subject: ARM: OMAP: sram: fix BUG in dpll code for !PM case _omap3_sram_configure_core_dpll is called when SDRC is reprogrammed, which is done regardless of CONFIG_PM setting, so we always need it's setup code too. Without this, we hit a BUG() on OMAP3 when kernel is built without CONFIG_PM: Reprogramming SDRC clock to 332000000 Hz ------------[ cut here ]------------ kernel BUG at arch/arm/plat-omap/sram.c:342! Internal error: Oops - BUG: 0 [#1] ARM ... [] (omap3_configure_core_dpll+0x68/0x6c) from [] (omap3_core_dpll_m2_set_rate+0x1) [] (omap3_core_dpll_m2_set_rate+0x138/0x1b0) from [] (omap2_clk_set_rate+0x14/0x2) [] (omap2_clk_set_rate+0x14/0x20) from [] (clk_set_rate+0x54/0x74) [] (clk_set_rate+0x54/0x74) from [] (omap_sdrc_init+0x70/0x90) [] (omap_sdrc_init+0x70/0x90) from [] (omap3pandora_init+0x11c/0x164) [] (omap3pandora_init+0x11c/0x164) from [] (customize_machine+0x20/0x28) [] (customize_machine+0x20/0x28) from [] (do_one_initcall+0xa0/0x16c) [] (do_one_initcall+0xa0/0x16c) from [] (kernel_init+0x104/0x1ac) [] (kernel_init+0x104/0x1ac) from [] (kernel_thread_exit+0x0/0x8) Signed-off-by: Grazvydas Ignotas Signed-off-by: Tony Lindgren diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c index eec98af..f9a8c53 100644 --- a/arch/arm/plat-omap/sram.c +++ b/arch/arm/plat-omap/sram.c @@ -348,7 +348,6 @@ u32 omap3_configure_core_dpll(u32 m2, u32 unlock_dll, u32 f, u32 inc, sdrc_actim_ctrl_b_1, sdrc_mr_1); } -#ifdef CONFIG_PM void omap3_sram_restore_context(void) { omap_sram_ceil = omap_sram_base + omap_sram_size; @@ -358,17 +357,18 @@ void omap3_sram_restore_context(void) omap3_sram_configure_core_dpll_sz); omap_push_sram_idle(); } -#endif /* CONFIG_PM */ - -#endif /* CONFIG_ARCH_OMAP3 */ static inline int omap34xx_sram_init(void) { -#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM) omap3_sram_restore_context(); -#endif return 0; } +#else +static inline int omap34xx_sram_init(void) +{ + return 0; +} +#endif /* CONFIG_ARCH_OMAP3 */ static inline int am33xx_sram_init(void) { -- cgit v0.10.2 From e8e937be971d706061dc56220ff3605ab77622a7 Mon Sep 17 00:00:00 2001 From: Stefano Stabellini Date: Tue, 3 Apr 2012 18:05:47 +0100 Subject: xen/gntdev: do not set VM_PFNMAP Since we are using the m2p_override we do have struct pages corresponding to the user vma mmap'ed by gntdev. Removing the VM_PFNMAP flag makes get_user_pages work on that vma. An example test case would be using a Xen userspace block backend (QDISK) on a file on NFS using O_DIRECT. CC: stable@kernel.org Signed-off-by: Stefano Stabellini Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c index 99d8151..1ffd03b 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -722,7 +722,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma) vma->vm_flags |= VM_RESERVED|VM_DONTEXPAND; if (use_ptemod) - vma->vm_flags |= VM_DONTCOPY|VM_PFNMAP; + vma->vm_flags |= VM_DONTCOPY; vma->vm_private_data = map; -- cgit v0.10.2 From b960d6c43a63ebd2d8518b328da3816b833ee8cc Mon Sep 17 00:00:00 2001 From: Stefano Stabellini Date: Tue, 27 Mar 2012 14:52:44 +0100 Subject: xen/p2m: m2p_find_override: use list_for_each_entry_safe Use list_for_each_entry_safe and remove the spin_lock acquisition in m2p_find_override. Signed-off-by: Stefano Stabellini Signed-off-by: Konrad Rzeszutek Wilk diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c index 1b267e7..7ed8cc3 100644 --- a/arch/x86/xen/p2m.c +++ b/arch/x86/xen/p2m.c @@ -809,21 +809,17 @@ struct page *m2p_find_override(unsigned long mfn) { unsigned long flags; struct list_head *bucket = &m2p_overrides[mfn_hash(mfn)]; - struct page *p, *ret; + struct page *p, *t, *ret; ret = NULL; - spin_lock_irqsave(&m2p_override_lock, flags); - - list_for_each_entry(p, bucket, lru) { + list_for_each_entry_safe(p, t, bucket, lru) { if (page_private(p) == mfn) { ret = p; break; } } - spin_unlock_irqrestore(&m2p_override_lock, flags); - return ret; } -- cgit v0.10.2 From bce492c04ba8fc66a4ea0a52b181ba255daaaf54 Mon Sep 17 00:00:00 2001 From: "Govindraj.R" Date: Tue, 17 Apr 2012 10:35:47 -0700 Subject: ARM: OMAP2+: UART: Fix incorrect population of default uart pads Commit (7496ba3 ARM: OMAP2+: UART: Add default mux for all uarts) wrongly added muxing of default pads for all uarts. This causes breakage on multiple boards using uart pins for alternate functions. For example, on zoom3 random oopses can be seen with nfsroot as the smsc911x ethernet FIFO timings on GPMC bus are controlled by gpmc_wait2 and gpmc_wait3 pins. This means we can't mux these pads to uart4 functionality as commit 7496ba3 was doing. Not all boards tend to use all uarts and most of unused uart pins are muxed for other purpose. This commit breaks the modules which where trying to use unused uart pins on their boards. So remove the default pad muxing. Note that this is not a complete fix, as we now rely on bootloader set muxing for the uart wake-up events. Further patching is needed to enable wake-up events for uarts that are already muxed to uart mode. Cc: Felipe Balbi Cc: Kevin Hilman Acked-by: Russ Dill Reported-by: Tony Lindgren Signed-off-by: Govindraj.R [tony@atomide.com: updated comments to describe oops on zoom3] Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index 0cdd359..2e351f5 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -120,124 +120,8 @@ static void omap_uart_set_smartidle(struct platform_device *pdev) {} #endif /* CONFIG_PM */ #ifdef CONFIG_OMAP_MUX -static struct omap_device_pad default_uart1_pads[] __initdata = { - { - .name = "uart1_cts.uart1_cts", - .enable = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0, - }, - { - .name = "uart1_rts.uart1_rts", - .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, - }, - { - .name = "uart1_tx.uart1_tx", - .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, - }, - { - .name = "uart1_rx.uart1_rx", - .flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP, - .enable = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0, - .idle = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0, - }, -}; - -static struct omap_device_pad default_uart2_pads[] __initdata = { - { - .name = "uart2_cts.uart2_cts", - .enable = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0, - }, - { - .name = "uart2_rts.uart2_rts", - .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, - }, - { - .name = "uart2_tx.uart2_tx", - .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, - }, - { - .name = "uart2_rx.uart2_rx", - .flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP, - .enable = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0, - .idle = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0, - }, -}; - -static struct omap_device_pad default_uart3_pads[] __initdata = { - { - .name = "uart3_cts_rctx.uart3_cts_rctx", - .enable = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0, - }, - { - .name = "uart3_rts_sd.uart3_rts_sd", - .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, - }, - { - .name = "uart3_tx_irtx.uart3_tx_irtx", - .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, - }, - { - .name = "uart3_rx_irrx.uart3_rx_irrx", - .flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP, - .enable = OMAP_PIN_INPUT | OMAP_MUX_MODE0, - .idle = OMAP_PIN_INPUT | OMAP_MUX_MODE0, - }, -}; - -static struct omap_device_pad default_omap36xx_uart4_pads[] __initdata = { - { - .name = "gpmc_wait2.uart4_tx", - .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, - }, - { - .name = "gpmc_wait3.uart4_rx", - .flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP, - .enable = OMAP_PIN_INPUT | OMAP_MUX_MODE2, - .idle = OMAP_PIN_INPUT | OMAP_MUX_MODE2, - }, -}; - -static struct omap_device_pad default_omap4_uart4_pads[] __initdata = { - { - .name = "uart4_tx.uart4_tx", - .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, - }, - { - .name = "uart4_rx.uart4_rx", - .flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP, - .enable = OMAP_PIN_INPUT | OMAP_MUX_MODE0, - .idle = OMAP_PIN_INPUT | OMAP_MUX_MODE0, - }, -}; - static void omap_serial_fill_default_pads(struct omap_board_data *bdata) { - switch (bdata->id) { - case 0: - bdata->pads = default_uart1_pads; - bdata->pads_cnt = ARRAY_SIZE(default_uart1_pads); - break; - case 1: - bdata->pads = default_uart2_pads; - bdata->pads_cnt = ARRAY_SIZE(default_uart2_pads); - break; - case 2: - bdata->pads = default_uart3_pads; - bdata->pads_cnt = ARRAY_SIZE(default_uart3_pads); - break; - case 3: - if (cpu_is_omap44xx()) { - bdata->pads = default_omap4_uart4_pads; - bdata->pads_cnt = - ARRAY_SIZE(default_omap4_uart4_pads); - } else if (cpu_is_omap3630()) { - bdata->pads = default_omap36xx_uart4_pads; - bdata->pads_cnt = - ARRAY_SIZE(default_omap36xx_uart4_pads); - } - break; - default: - break; - } } #else static void omap_serial_fill_default_pads(struct omap_board_data *bdata) {} -- cgit v0.10.2 From 973ef21a676e55a8e1a100a6e109f0c116ea75e8 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 16 Apr 2012 14:56:48 +0200 Subject: mac80211: fix truncated packets in cooked monitor rx Cooked monitor rx was recently changed to use ieee80211_add_rx_radiotap_header instead of generating only limited radiotap information. ieee80211_add_rx_radiotap_header assumes that FCS info is still present if the hardware supports receiving it, however when cooked monitor rx packets are processed, FCS info has already been stripped. Fix this by adding an extra flag indicating FCS presence. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index bcfe8c7..d64e285 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -103,7 +103,7 @@ static void ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, struct sk_buff *skb, struct ieee80211_rate *rate, - int rtap_len) + int rtap_len, bool has_fcs) { struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); struct ieee80211_radiotap_header *rthdr; @@ -134,7 +134,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, } /* IEEE80211_RADIOTAP_FLAGS */ - if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS) + if (has_fcs && (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)) *pos |= IEEE80211_RADIOTAP_F_FCS; if (status->flag & (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC)) *pos |= IEEE80211_RADIOTAP_F_BADFCS; @@ -294,7 +294,8 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb, } /* prepend radiotap information */ - ieee80211_add_rx_radiotap_header(local, skb, rate, needed_headroom); + ieee80211_add_rx_radiotap_header(local, skb, rate, needed_headroom, + true); skb_reset_mac_header(skb); skb->ip_summed = CHECKSUM_UNNECESSARY; @@ -2571,7 +2572,8 @@ static void ieee80211_rx_cooked_monitor(struct ieee80211_rx_data *rx, goto out_free_skb; /* prepend radiotap information */ - ieee80211_add_rx_radiotap_header(local, skb, rate, needed_headroom); + ieee80211_add_rx_radiotap_header(local, skb, rate, needed_headroom, + false); skb_set_mac_header(skb, 0); skb->ip_summed = CHECKSUM_UNNECESSARY; -- cgit v0.10.2 From 15fae50a9bd28a9fe490b053ff4353f8a38ea5a0 Mon Sep 17 00:00:00 2001 From: Wey-Yi Guy Date: Mon, 16 Apr 2012 12:03:35 -0700 Subject: MAINTAINERS: Add maintainer for iwlwifi Add Johannes Berg as the primary maintainer for iwlwifi driver Signed-off-by: Wey-Yi Guy Signed-off-by: John W. Linville diff --git a/MAINTAINERS b/MAINTAINERS index 6010b9d..f6dfba3 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3592,6 +3592,7 @@ S: Supported F: drivers/net/wireless/iwlegacy/ INTEL WIRELESS WIFI LINK (iwlwifi) +M: Johannes Berg M: Wey-Yi Guy M: Intel Linux Wireless L: linux-wireless@vger.kernel.org -- cgit v0.10.2 From 6741e7f048dacc92e37c5d724ff5c64e45f6c2c9 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 16 Apr 2012 22:10:42 +0200 Subject: mac80211: fix logic error in ibss channel type check The broken check leads to rate control attempting to use HT40 while the driver is configured for HT20. This leads to interesting hardware issues. HT40 can only be used if the channel type is either HT40- or HT40+ and if the channel type of the cell matches the local type. Signed-off-by: Felix Fietkau Cc: stable@vger.kernel.org Signed-off-by: John W. Linville diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index 33fd8d9..cef7c29 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -457,8 +457,8 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, * fall back to HT20 if we don't use or use * the other extension channel */ - if ((channel_type == NL80211_CHAN_HT40MINUS || - channel_type == NL80211_CHAN_HT40PLUS) && + if (!(channel_type == NL80211_CHAN_HT40MINUS || + channel_type == NL80211_CHAN_HT40PLUS) || channel_type != sdata->u.ibss.channel_type) sta_ht_cap_new.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; -- cgit v0.10.2 From fd09c85fe15aa66a69f091ba178817d5ef82476d Mon Sep 17 00:00:00 2001 From: Sujith Manoharan Date: Tue, 17 Apr 2012 08:34:50 +0530 Subject: ath9k: Fix TX fragmentation Assigning sequence number for frames without taking care of the fragment field breaks transmission of fragmented frames. Fix this by assigning the fragment number properly. Signed-off-by: Sujith Manoharan Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 834e6bc..23eaa1b 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1820,6 +1820,7 @@ static struct ath_buf *ath_tx_setup_buffer(struct ath_softc *sc, struct ath_frame_info *fi = get_frame_info(skb); struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; struct ath_buf *bf; + int fragno; u16 seqno; bf = ath_tx_get_buffer(sc); @@ -1831,9 +1832,16 @@ static struct ath_buf *ath_tx_setup_buffer(struct ath_softc *sc, ATH_TXBUF_RESET(bf); if (tid) { + fragno = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG; seqno = tid->seq_next; hdr->seq_ctrl = cpu_to_le16(tid->seq_next << IEEE80211_SEQ_SEQ_SHIFT); - INCR(tid->seq_next, IEEE80211_SEQ_MAX); + + if (fragno) + hdr->seq_ctrl |= cpu_to_le16(fragno); + + if (!ieee80211_has_morefrags(hdr->frame_control)) + INCR(tid->seq_next, IEEE80211_SEQ_MAX); + bf->bf_state.seqno = seqno; } -- cgit v0.10.2 From 5ae256dcd91bf308826a4ac19598b27ebb86a536 Mon Sep 17 00:00:00 2001 From: Santosh Shilimkar Date: Fri, 13 Apr 2012 23:25:04 +0530 Subject: ARM: OMAP: serial: Fix the ocp smart idlemode handling bug The current serial UART code, while fidling with ocp idlemode bits, forget about the smart idle wakeup bit even if it is supported by UART IP block. This will lead to missing the module wakeup on OMAP's where the smart idle wakeup is supported. This was the root cause of the console sluggishness issue, I have been observing on OMAP4 devices and also can be potential reason for some other UART wakeup issues. Signed-off-by: Santosh Shilimkar Acked-by: Kevin Hilman Acked-by: Govindraj.R Reviewed-by: Paul Walmsley Cc: stable@vger.kernel.org Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index 2e351f5..9fc2f44 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -108,8 +108,14 @@ static void omap_uart_set_noidle(struct platform_device *pdev) static void omap_uart_set_smartidle(struct platform_device *pdev) { struct omap_device *od = to_omap_device(pdev); + u8 idlemode; - omap_hwmod_set_slave_idlemode(od->hwmods[0], HWMOD_IDLEMODE_SMART); + if (od->hwmods[0]->class->sysc->idlemodes & SIDLE_SMART_WKUP) + idlemode = HWMOD_IDLEMODE_SMART_WKUP; + else + idlemode = HWMOD_IDLEMODE_SMART; + + omap_hwmod_set_slave_idlemode(od->hwmods[0], idlemode); } #else -- cgit v0.10.2 From a7dbb603423d499acacefb5fad65d2b406f16370 Mon Sep 17 00:00:00 2001 From: Liam Girdwood Date: Tue, 17 Apr 2012 18:00:11 +0100 Subject: ASoC: core: Fix card RTD count for deferred probe. Currently we increment the number of RTD's per card during the DAI link bind. This can cause an incorrect RTD count when we cannot find a component and defer the probe (and hence perform the DAI link bind for the card again). Fix the count so that it is cleared before every card registration and bind attempt. Signed-off-by: Liam Girdwood Signed-off-by: Mark Brown diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 8d2ebf5..3a4e93e 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -3119,6 +3119,7 @@ int snd_soc_register_card(struct snd_soc_card *card) GFP_KERNEL); if (card->rtd == NULL) return -ENOMEM; + card->num_rtd = 0; card->rtd_aux = &card->rtd[card->num_links]; for (i = 0; i < card->num_links; i++) -- cgit v0.10.2 From 6aaec67da1e41a0752a2b903b989e73b9f02e182 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Tue, 10 Apr 2012 18:36:02 -0600 Subject: ARM: OMAP1: DMTIMER: fix broken timer clock source selection DMTIMER source selection on OMAP1 is broken. omap1_dm_timer_set_src() tries to use __raw_{read,write}l() to read from and write to physical addresses, but those functions take virtual addresses. sparse caught this: arch/arm/mach-omap1/timer.c:50:13: warning: incorrect type in argument 1 (different base types) arch/arm/mach-omap1/timer.c:50:13: expected void const volatile [noderef] * arch/arm/mach-omap1/timer.c:50:13: got unsigned int arch/arm/mach-omap1/timer.c:52:9: warning: incorrect type in argument 1 (different base types) arch/arm/mach-omap1/timer.c:52:9: expected void const volatile [noderef] * arch/arm/mach-omap1/timer.c:52:9: got unsigned int Fix by using omap_{read,writel}(), just like the other users of the MOD_CONF_CTRL_1 register in the OMAP1 codebase. Of course, in the long term, removing omap_{read,write}l() is the appropriate thing to do; but this will take some work to do this cleanly. Looks like this was caused by 97933d6 (ARM: OMAP1: dmtimer: conversion to platform devices) that dangerously moved code and changed it in the same patch. Signed-off-by: Paul Walmsley Cc: Tarun Kanti DebBarma Cc: stable@vger.kernel.org [tony@atomide.com: updated comments to include the breaking commit] Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap1/timer.c b/arch/arm/mach-omap1/timer.c index 6e90665..fb202af 100644 --- a/arch/arm/mach-omap1/timer.c +++ b/arch/arm/mach-omap1/timer.c @@ -47,9 +47,9 @@ static int omap1_dm_timer_set_src(struct platform_device *pdev, int n = (pdev->id - 1) << 1; u32 l; - l = __raw_readl(MOD_CONF_CTRL_1) & ~(0x03 << n); + l = omap_readl(MOD_CONF_CTRL_1) & ~(0x03 << n); l |= source << n; - __raw_writel(l, MOD_CONF_CTRL_1); + omap_writel(l, MOD_CONF_CTRL_1); return 0; } -- cgit v0.10.2 From 34948a947d1a576c10afee6d14792fd237549577 Mon Sep 17 00:00:00 2001 From: Benjamin Poirier Date: Fri, 6 Apr 2012 07:20:21 +0000 Subject: ixgbe: add missing rtnl_lock in PM resume path Upon resume from standby, ixgbe may trigger the ASSERT_RTNL() in netif_set_real_num_tx_queues(). The call stack is: netif_set_real_num_tx_queues ixgbe_set_num_queues ixgbe_init_interrupt_scheme ixgbe_resume Signed-off-by: Benjamin Poirier Tested-by: Stephen Ko Signed-off-by: Jeff Kirsher diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index dac7c01..9e2be8c 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -4836,7 +4836,9 @@ static int ixgbe_resume(struct pci_dev *pdev) pci_wake_from_d3(pdev, false); + rtnl_lock(); err = ixgbe_init_interrupt_scheme(adapter); + rtnl_unlock(); if (err) { e_dev_err("Cannot initialize interrupts for device\n"); return err; -- cgit v0.10.2 From b2db497eb25510052fc2d3152384f964b3312004 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Sat, 7 Apr 2012 04:57:29 +0000 Subject: ixgbe: Identify FCoE rings earlier to resolve memory corruption w/ FCoE This patch makes it so that we identify FCoE rings earlier than ixgbe_set_rx_buffer_len. Instead we identify the Rx FCoE rings at allocation time in ixgbe_alloc_q_vector. The motivation behind this change is to avoid memory corruption when FCoE is enabled. Without this change we were initializing the rings at 0, and 2K on systems with 4K pages, then when we bumped the buffer size to 4K with order 1 pages we were accessing offsets 2K and 6K instead of 0 and 4K. This was resulting in memory corruptions. Signed-off-by: Alexander Duyck Acked-by: Yi Zou Tested-by: Ross Brattain Signed-off-by: Jeff Kirsher diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c index 027d7a7..ed1b47d 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c @@ -622,6 +622,16 @@ static int ixgbe_alloc_q_vector(struct ixgbe_adapter *adapter, int v_idx, if (adapter->hw.mac.type == ixgbe_mac_82599EB) set_bit(__IXGBE_RX_CSUM_UDP_ZERO_ERR, &ring->state); +#ifdef IXGBE_FCOE + if (adapter->netdev->features & NETIF_F_FCOE_MTU) { + struct ixgbe_ring_feature *f; + f = &adapter->ring_feature[RING_F_FCOE]; + if ((rxr_idx >= f->mask) && + (rxr_idx < f->mask + f->indices)) + set_bit(__IXGBE_RX_FCOE_BUFSZ, &ring->state); + } + +#endif /* IXGBE_FCOE */ /* apply Rx specific ring traits */ ring->count = adapter->rx_ring_count; ring->queue_index = rxr_idx; diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 9e2be8c..a7f3cd8 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -3154,14 +3154,6 @@ static void ixgbe_set_rx_buffer_len(struct ixgbe_adapter *adapter) set_ring_rsc_enabled(rx_ring); else clear_ring_rsc_enabled(rx_ring); -#ifdef IXGBE_FCOE - if (netdev->features & NETIF_F_FCOE_MTU) { - struct ixgbe_ring_feature *f; - f = &adapter->ring_feature[RING_F_FCOE]; - if ((i >= f->mask) && (i < f->mask + f->indices)) - set_bit(__IXGBE_RX_FCOE_BUFSZ, &rx_ring->state); - } -#endif /* IXGBE_FCOE */ } } -- cgit v0.10.2 From 8963c487a80b4688c9e68dcc504a90074aacc145 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Tue, 17 Apr 2012 15:22:39 -0400 Subject: USB: fix deadlock in bConfigurationValue attribute method This patch (as154) fixes a self-deadlock that occurs when userspace writes to the bConfigurationValue sysfs attribute for a hub with children. The task tries to lock the bandwidth_mutex at a time when it already owns the lock: The attribute's method calls usb_set_configuration(), which calls usb_disable_device() with the bandwidth_mutex held. usb_disable_device() unregisters the existing interfaces, which causes the hub driver to be unbound. The hub_disconnect() routine calls hub_quiesce(), which calls usb_disconnect() for each of the hub's children. usb_disconnect() attempts to acquire the bandwidth_mutex around a call to usb_disable_device(). The solution is to make usb_disable_device() acquire the mutex for itself instead of requiring the caller to hold it. Then the mutex can cover only the bandwidth deallocation operation and not the region where the interfaces are unregistered. This has the potential to change system behavior slightly when a config change races with another config or altsetting change. Some of the bandwidth released from the old config might get claimed by the other config or altsetting, make it impossible to restore the old config in case of a failure. But since we don't try to recover from config-change failures anyway, this doesn't matter. [This should be marked for stable kernels that contain the commit fccf4e86200b8f5edd9a65da26f150e32ba79808 "USB: Free bandwidth when usb_disable_device is called." That commit was marked for stable kernels as old as 2.6.32.] Signed-off-by: Alan Stern Signed-off-by: Sarah Sharp Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index a2aa9d6..ec6c97d 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -1667,7 +1667,6 @@ void usb_disconnect(struct usb_device **pdev) { struct usb_device *udev = *pdev; int i; - struct usb_hcd *hcd = bus_to_hcd(udev->bus); /* mark the device as inactive, so any further urb submissions for * this device (and any of its children) will fail immediately. @@ -1690,9 +1689,7 @@ void usb_disconnect(struct usb_device **pdev) * so that the hardware is now fully quiesced. */ dev_dbg (&udev->dev, "unregistering device\n"); - mutex_lock(hcd->bandwidth_mutex); usb_disable_device(udev, 0); - mutex_unlock(hcd->bandwidth_mutex); usb_hcd_synchronize_unlinks(udev); usb_remove_ep_devs(&udev->ep0); diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index aed3e07..ca717da 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -1136,8 +1136,6 @@ void usb_disable_interface(struct usb_device *dev, struct usb_interface *intf, * Deallocates hcd/hardware state for the endpoints (nuking all or most * pending urbs) and usbcore state for the interfaces, so that usbcore * must usb_set_configuration() before any interfaces could be used. - * - * Must be called with hcd->bandwidth_mutex held. */ void usb_disable_device(struct usb_device *dev, int skip_ep0) { @@ -1190,7 +1188,9 @@ void usb_disable_device(struct usb_device *dev, int skip_ep0) usb_disable_endpoint(dev, i + USB_DIR_IN, false); } /* Remove endpoints from the host controller internal state */ + mutex_lock(hcd->bandwidth_mutex); usb_hcd_alloc_bandwidth(dev, NULL, NULL, NULL); + mutex_unlock(hcd->bandwidth_mutex); /* Second pass: remove endpoint pointers */ } for (i = skip_ep0; i < 16; ++i) { @@ -1750,7 +1750,6 @@ free_interfaces: /* if it's already configured, clear out old state first. * getting rid of old interfaces means unbinding their drivers. */ - mutex_lock(hcd->bandwidth_mutex); if (dev->state != USB_STATE_ADDRESS) usb_disable_device(dev, 1); /* Skip ep0 */ @@ -1763,6 +1762,7 @@ free_interfaces: * host controller will not allow submissions to dropped endpoints. If * this call fails, the device state is unchanged. */ + mutex_lock(hcd->bandwidth_mutex); ret = usb_hcd_alloc_bandwidth(dev, cp, NULL, NULL); if (ret < 0) { mutex_unlock(hcd->bandwidth_mutex); -- cgit v0.10.2 From e65cdfae71cecec0fcd43a3f9ac8b5e4ae52db08 Mon Sep 17 00:00:00 2001 From: Xi Wang Date: Mon, 9 Apr 2012 15:48:55 -0400 Subject: usb: usbtest: avoid integer overflow in test_ctrl_queue() Avoid overflowing context.count = param->sglen * param->iterations, where both `sglen' and `iterations' are from userspace. | test_ctrl_queue() | usbtest_ioctl() Keep -EOPNOTSUPP for error code. Signed-off-by: Xi Wang Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index 959145b..967254a 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -904,6 +904,9 @@ test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param *param) struct ctrl_ctx context; int i; + if (param->sglen == 0 || param->iterations > UINT_MAX / param->sglen) + return -EOPNOTSUPP; + spin_lock_init(&context.lock); context.dev = dev; init_completion(&context.complete); @@ -1981,8 +1984,6 @@ usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf) /* queued control messaging */ case 10: - if (param->sglen == 0) - break; retval = 0; dev_info(&intf->dev, "TEST 10: queue %d control calls, %d times\n", -- cgit v0.10.2 From 8bde9a62ee74afa89f593c563e926d163b1f6ada Mon Sep 17 00:00:00 2001 From: Xi Wang Date: Mon, 9 Apr 2012 15:48:45 -0400 Subject: usb: usbtest: avoid integer overflow in alloc_sglist() A large `nents' from userspace could overflow the allocation size, leading to memory corruption. | alloc_sglist() | usbtest_ioctl() Use kmalloc_array() to avoid the overflow. Signed-off-by: Xi Wang Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index 967254a..cac67de 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -423,7 +423,7 @@ alloc_sglist(int nents, int max, int vary) unsigned i; unsigned size = max; - sg = kmalloc(nents * sizeof *sg, GFP_KERNEL); + sg = kmalloc_array(nents, sizeof *sg, GFP_KERNEL); if (!sg) return NULL; sg_init_table(sg, nents); -- cgit v0.10.2 From 749541d19e70905e3971f2a08335a206a98e4d0c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Tue, 17 Apr 2012 21:37:29 +0200 Subject: USB: sierra: avoid QMI/wwan interface on MC77xx MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit These devices have a number of non serial interfaces as well. Use the existing "Direct IP" blacklist to prevent binding to interfaces which are handled by other drivers. We also extend the "Direct IP" blacklist with with interfaces only seen in "QMI" mode, assuming that these devices use the same interface numbers for serial interfaces both in "Direct IP" and in "QMI" mode. Signed-off-by: Bjørn Mork Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index fdd5aa2..8c8bf80 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -221,7 +221,7 @@ static const struct sierra_iface_info typeB_interface_list = { }; /* 'blacklist' of interfaces not served by this driver */ -static const u8 direct_ip_non_serial_ifaces[] = { 7, 8, 9, 10, 11 }; +static const u8 direct_ip_non_serial_ifaces[] = { 7, 8, 9, 10, 11, 19, 20 }; static const struct sierra_iface_info direct_ip_interface_blacklist = { .infolen = ARRAY_SIZE(direct_ip_non_serial_ifaces), .ifaceinfo = direct_ip_non_serial_ifaces, @@ -289,7 +289,6 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ { USB_DEVICE(0x1199, 0x6859) }, /* Sierra Wireless AirCard 885 E */ { USB_DEVICE(0x1199, 0x685A) }, /* Sierra Wireless AirCard 885 E */ - { USB_DEVICE(0x1199, 0x68A2) }, /* Sierra Wireless MC7710 */ /* Sierra Wireless C885 */ { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6880, 0xFF, 0xFF, 0xFF)}, /* Sierra Wireless C888, Air Card 501, USB 303, USB 304 */ @@ -299,6 +298,9 @@ static const struct usb_device_id id_table[] = { /* Sierra Wireless HSPA Non-Composite Device */ { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6892, 0xFF, 0xFF, 0xFF)}, { USB_DEVICE(0x1199, 0x6893) }, /* Sierra Wireless Device */ + { USB_DEVICE(0x1199, 0x68A2), /* Sierra Wireless MC77xx in QMI mode */ + .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist + }, { USB_DEVICE(0x1199, 0x68A3), /* Sierra Wireless Direct IP modems */ .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist }, -- cgit v0.10.2 From dc75ce9d929aabeb0843a6b1a4ab320e58ba1597 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Tue, 17 Apr 2012 15:24:15 -0400 Subject: EHCI: fix criterion for resuming the root hub This patch (as1542) changes the criterion ehci-hcd uses to tell when it needs to resume the controller's root hub. A resume is needed when a port status change is detected, obviously, but only if the root hub is currently suspended. Right now the driver tests whether the root hub is running, and that is not the correct test. In particular, if the controller has died then the root hub should not be restarted. In addition, some buggy hardware occasionally requires the root hub to be running and sending out SOF packets even while it is nominally supposed to be suspended. In the end, the test needs to be changed. Rather than checking whether the root hub is currently running, the driver will now check whether the root hub is currently suspended. This will yield the correct behavior in all cases. Signed-off-by: Alan Stern CC: Peter Chen Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 806cc95..95ca07a 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -910,7 +910,7 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) pcd_status = status; /* resume root hub? */ - if (!(cmd & CMD_RUN)) + if (ehci->rh_state == EHCI_RH_SUSPENDED) usb_hcd_resume_root_hub(hcd); /* get per-port change detect bits */ -- cgit v0.10.2 From eb798c641a34ae9cee9fcacfbe5dd40bd7777607 Mon Sep 17 00:00:00 2001 From: Vinit Shenoy Date: Tue, 17 Apr 2012 12:40:13 +0530 Subject: spi/pl022: Fix range checking for bits per word pl022 ssp controller supports word lengths from 4 to 16 (or 32) bits. Currently implemented checks were incorrect. It has following check if (pl022->vendor->max_bpw >= 32) which must be checking for <=. Also error print message is incorrect, that prints "range is from 1 to 16". Fix both these issues. Signed-off-by: Vinit Shenoy Acked-by: Linus Walleij Signed-off-by: Grant Likely diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c index 09c925a..1ead49d 100644 --- a/drivers/spi/spi-pl022.c +++ b/drivers/spi/spi-pl022.c @@ -1823,9 +1823,12 @@ static int pl022_setup(struct spi_device *spi) } else chip->cs_control = chip_info->cs_control; - if (bits <= 3) { - /* PL022 doesn't support less than 4-bits */ + /* Check bits per word with vendor specific range */ + if ((bits <= 3) || (bits > pl022->vendor->max_bpw)) { status = -ENOTSUPP; + dev_err(&spi->dev, "illegal data size for this controller!\n"); + dev_err(&spi->dev, "This controller can only handle 4 <= n <= %d bit words\n", + pl022->vendor->max_bpw); goto err_config_params; } else if (bits <= 8) { dev_dbg(&spi->dev, "4 <= n <=8 bits per word\n"); @@ -1838,20 +1841,10 @@ static int pl022_setup(struct spi_device *spi) chip->read = READING_U16; chip->write = WRITING_U16; } else { - if (pl022->vendor->max_bpw >= 32) { - dev_dbg(&spi->dev, "17 <= n <= 32 bits per word\n"); - chip->n_bytes = 4; - chip->read = READING_U32; - chip->write = WRITING_U32; - } else { - dev_err(&spi->dev, - "illegal data size for this controller!\n"); - dev_err(&spi->dev, - "a standard pl022 can only handle " - "1 <= n <= 16 bit words\n"); - status = -ENOTSUPP; - goto err_config_params; - } + dev_dbg(&spi->dev, "17 <= n <= 32 bits per word\n"); + chip->n_bytes = 4; + chip->read = READING_U32; + chip->write = WRITING_U32; } /* Now Initialize all register settings required for this chip */ -- cgit v0.10.2 From 86812bb0de1a3758dc6c7aa01a763158a7c0638a Mon Sep 17 00:00:00 2001 From: Casey Schaufler Date: Tue, 17 Apr 2012 18:55:46 -0700 Subject: Smack: move label list initialization A kernel with Smack enabled will fail if tmpfs has xattr support. Move the initialization of predefined Smack label list entries to the LSM initialization from the smackfs setup. This became an issue when tmpfs acquired xattr support, but was never correct. Signed-off-by: Casey Schaufler Signed-off-by: James Morris diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index 10056f2..45c32f0 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -3640,8 +3640,38 @@ struct security_operations smack_ops = { }; -static __init void init_smack_know_list(void) +static __init void init_smack_known_list(void) { + /* + * Initialize CIPSO locks + */ + spin_lock_init(&smack_known_huh.smk_cipsolock); + spin_lock_init(&smack_known_hat.smk_cipsolock); + spin_lock_init(&smack_known_star.smk_cipsolock); + spin_lock_init(&smack_known_floor.smk_cipsolock); + spin_lock_init(&smack_known_invalid.smk_cipsolock); + spin_lock_init(&smack_known_web.smk_cipsolock); + /* + * Initialize rule list locks + */ + mutex_init(&smack_known_huh.smk_rules_lock); + mutex_init(&smack_known_hat.smk_rules_lock); + mutex_init(&smack_known_floor.smk_rules_lock); + mutex_init(&smack_known_star.smk_rules_lock); + mutex_init(&smack_known_invalid.smk_rules_lock); + mutex_init(&smack_known_web.smk_rules_lock); + /* + * Initialize rule lists + */ + INIT_LIST_HEAD(&smack_known_huh.smk_rules); + INIT_LIST_HEAD(&smack_known_hat.smk_rules); + INIT_LIST_HEAD(&smack_known_star.smk_rules); + INIT_LIST_HEAD(&smack_known_floor.smk_rules); + INIT_LIST_HEAD(&smack_known_invalid.smk_rules); + INIT_LIST_HEAD(&smack_known_web.smk_rules); + /* + * Create the known labels list + */ list_add(&smack_known_huh.list, &smack_known_list); list_add(&smack_known_hat.list, &smack_known_list); list_add(&smack_known_star.list, &smack_known_list); @@ -3676,16 +3706,8 @@ static __init int smack_init(void) cred = (struct cred *) current->cred; cred->security = tsp; - /* initialize the smack_know_list */ - init_smack_know_list(); - /* - * Initialize locks - */ - spin_lock_init(&smack_known_huh.smk_cipsolock); - spin_lock_init(&smack_known_hat.smk_cipsolock); - spin_lock_init(&smack_known_star.smk_cipsolock); - spin_lock_init(&smack_known_floor.smk_cipsolock); - spin_lock_init(&smack_known_invalid.smk_cipsolock); + /* initialize the smack_known_list */ + init_smack_known_list(); /* * Register with LSM diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c index 5c32f36..038811c 100644 --- a/security/smack/smackfs.c +++ b/security/smack/smackfs.c @@ -1614,20 +1614,6 @@ static int __init init_smk_fs(void) smk_cipso_doi(); smk_unlbl_ambient(NULL); - mutex_init(&smack_known_floor.smk_rules_lock); - mutex_init(&smack_known_hat.smk_rules_lock); - mutex_init(&smack_known_huh.smk_rules_lock); - mutex_init(&smack_known_invalid.smk_rules_lock); - mutex_init(&smack_known_star.smk_rules_lock); - mutex_init(&smack_known_web.smk_rules_lock); - - INIT_LIST_HEAD(&smack_known_floor.smk_rules); - INIT_LIST_HEAD(&smack_known_hat.smk_rules); - INIT_LIST_HEAD(&smack_known_huh.smk_rules); - INIT_LIST_HEAD(&smack_known_invalid.smk_rules); - INIT_LIST_HEAD(&smack_known_star.smk_rules); - INIT_LIST_HEAD(&smack_known_web.smk_rules); - return err; } -- cgit v0.10.2 From 09c79b60960bdd4b00916219402eabfa5e479c5a Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Mon, 6 Feb 2012 20:07:04 +1100 Subject: mpi: Avoid using freed pointer in mpi_lshift_limbs() At the start of the function we assign 'a->d' to 'ap'. Then we use the RESIZE_IF_NEEDED macro on 'a' - this may free 'a->d' and replace it with newly allocaetd storage. In that case, we'll be operating on freed memory further down in the function when we index into 'ap[]'. Since we don't actually need 'ap' until after the use of the RESIZE_IF_NEEDED macro we can just delay the assignment to it until after we've potentially resized, thus avoiding the issue. While I was there anyway I also changed the integer variable 'n' to be const. It might as well be since we only assign to it once and use it as a constant, and then the compiler will tell us if we ever assign to it in the future. Signed-off-by: Jesper Juhl Acked-by: Dmitry Kasatkin Signed-off-by: James Morris diff --git a/lib/mpi/mpi-bit.c b/lib/mpi/mpi-bit.c index 2f52662..0c50536 100644 --- a/lib/mpi/mpi-bit.c +++ b/lib/mpi/mpi-bit.c @@ -177,8 +177,8 @@ int mpi_rshift(MPI x, MPI a, unsigned n) */ int mpi_lshift_limbs(MPI a, unsigned int count) { - mpi_ptr_t ap = a->d; - int n = a->nlimbs; + const int n = a->nlimbs; + mpi_ptr_t ap; int i; if (!count || !n) @@ -187,6 +187,7 @@ int mpi_lshift_limbs(MPI a, unsigned int count) if (RESIZE_IF_NEEDED(a, n + count) < 0) return -ENOMEM; + ap = a->d; for (i = n - 1; i >= 0; i--) ap[i + count] = ap[i]; for (i = 0; i < count; i++) -- cgit v0.10.2 From b95465c8fcd7c8619ff9ff7bbf8038ab31c7f34b Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Mon, 16 Apr 2012 02:02:48 +0000 Subject: arcnet: rimi: Fix device name in debug output arcrimi_probe() calls BUGMSG() before register_netdev() happens. BUGMSG() itself prints dev->name, but as the format string hasn't been expanded by register_netdev() yet, the output contains bogus device name such as arc%d: Given: node 00h, shmem 0h, irq 0 As we don't know the device name yet, just drop the prefix completely from the debugging messages. Reported-by: Steven Young Signed-off-by: Jiri Kosina Signed-off-by: David S. Miller diff --git a/drivers/net/arcnet/arc-rimi.c b/drivers/net/arcnet/arc-rimi.c index 25197b6..b8b4c7b 100644 --- a/drivers/net/arcnet/arc-rimi.c +++ b/drivers/net/arcnet/arc-rimi.c @@ -89,16 +89,16 @@ static int __init arcrimi_probe(struct net_device *dev) BUGLVL(D_NORMAL) printk(VERSION); BUGLVL(D_NORMAL) printk("E-mail me if you actually test the RIM I driver, please!\n"); - BUGMSG(D_NORMAL, "Given: node %02Xh, shmem %lXh, irq %d\n", + BUGLVL(D_NORMAL) printk("Given: node %02Xh, shmem %lXh, irq %d\n", dev->dev_addr[0], dev->mem_start, dev->irq); if (dev->mem_start <= 0 || dev->irq <= 0) { - BUGMSG(D_NORMAL, "No autoprobe for RIM I; you " + BUGLVL(D_NORMAL) printk("No autoprobe for RIM I; you " "must specify the shmem and irq!\n"); return -ENODEV; } if (dev->dev_addr[0] == 0) { - BUGMSG(D_NORMAL, "You need to specify your card's station " + BUGLVL(D_NORMAL) printk("You need to specify your card's station " "ID!\n"); return -ENODEV; } @@ -109,7 +109,7 @@ static int __init arcrimi_probe(struct net_device *dev) * will be taken. */ if (!request_mem_region(dev->mem_start, MIRROR_SIZE, "arcnet (90xx)")) { - BUGMSG(D_NORMAL, "Card memory already allocated\n"); + BUGLVL(D_NORMAL) printk("Card memory already allocated\n"); return -ENODEV; } return arcrimi_found(dev); -- cgit v0.10.2 From edfb5d4687d587c9f714799c7ee27517118e12e6 Mon Sep 17 00:00:00 2001 From: Jiri Bohac Date: Mon, 16 Apr 2012 03:34:39 +0000 Subject: ipv6: fix rt6_update_expires Commit 1716a961 (ipv6: fix problem with expired dst cache) broke PMTU discovery. rt6_update_expires() calls dst_set_expires(), which only updates dst->expires if it has not been set previously (expires == 0) or if the new expires is earlier than the current dst->expires. rt6_update_expires() needs to zero rt->dst.expires, otherwise it will contain ivalid data left over from rt->dst.from and will confuse dst_set_expires(). Signed-off-by: Jiri Bohac Signed-off-by: David S. Miller diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h index c64778f..cb8da1d 100644 --- a/include/net/ip6_fib.h +++ b/include/net/ip6_fib.h @@ -143,8 +143,14 @@ static inline void rt6_set_expires(struct rt6_info *rt, unsigned long expires) static inline void rt6_update_expires(struct rt6_info *rt, int timeout) { - if (!(rt->rt6i_flags & RTF_EXPIRES) && rt->dst.from) - dst_release(rt->dst.from); + if (!(rt->rt6i_flags & RTF_EXPIRES)) { + if (rt->dst.from) + dst_release(rt->dst.from); + /* dst_set_expires relies on expires == 0 + * if it has not been set previously. + */ + rt->dst.expires = 0; + } dst_set_expires(&rt->dst, timeout); rt->rt6i_flags |= RTF_EXPIRES; -- cgit v0.10.2 From cda31e10baf47a8a7d9360d9488fb76294be1ca3 Mon Sep 17 00:00:00 2001 From: Jiri Bohac Date: Mon, 16 Apr 2012 03:35:41 +0000 Subject: ipv6: clean up rt6_clean_expires Functionally, this change is a NOP. Semantically, rt6_clean_expires() wants to do rt->dst.from = NULL instead of rt->dst.expires = 0. It is clearing the RTF_EXPIRES flag, so the union is going to be treated as a pointer (dst.from) not a long (dst.expires). Signed-off-by: Jiri Bohac Signed-off-by: David S. Miller diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h index cb8da1d..0ae759a 100644 --- a/include/net/ip6_fib.h +++ b/include/net/ip6_fib.h @@ -129,7 +129,7 @@ static inline void rt6_clean_expires(struct rt6_info *rt) dst_release(rt->dst.from); rt->rt6i_flags &= ~RTF_EXPIRES; - rt->dst.expires = 0; + rt->dst.from = NULL; } static inline void rt6_set_expires(struct rt6_info *rt, unsigned long expires) -- cgit v0.10.2 From 5b76d0600b2b08eef77f8e9226938b7b6bde3099 Mon Sep 17 00:00:00 2001 From: Christian Riesch Date: Mon, 16 Apr 2012 04:35:25 +0000 Subject: davinci_mdio: Fix MDIO timeout check Under heavy load (flood ping) it is possible for the MDIO timeout to expire before the loop checks the GO bit again. This patch adds an additional check whether the operation was done before actually returning -ETIMEDOUT. To reproduce this bug, flood ping the device, e.g., ping -f -l 1000 After some time, a "timed out waiting for user access" warning may appear. And even worse, link may go down since the PHY reported a timeout. Signed-off-by: Christian Riesch Cc: Cc: Cyril Chemparathy Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c index 2757c7d..e4e4708 100644 --- a/drivers/net/ethernet/ti/davinci_mdio.c +++ b/drivers/net/ethernet/ti/davinci_mdio.c @@ -181,6 +181,11 @@ static inline int wait_for_user_access(struct davinci_mdio_data *data) __davinci_mdio_reset(data); return -EAGAIN; } + + reg = __raw_readl(®s->user[0].access); + if ((reg & USERACCESS_GO) == 0) + return 0; + dev_err(data->dev, "timed out waiting for user access\n"); return -ETIMEDOUT; } -- cgit v0.10.2 From 48159f009f5f92ef5962e7c278ac615d74242fa5 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Mon, 16 Apr 2012 05:22:12 +0000 Subject: drivers/net/wan/farsync.c: add missing iounmap Free card->mem in the error-handling code since it was successfully allocated just above. Signed-off-by: Julia Lawall Signed-off-by: David S. Miller diff --git a/drivers/net/wan/farsync.c b/drivers/net/wan/farsync.c index ebb9f24..1a62318 100644 --- a/drivers/net/wan/farsync.c +++ b/drivers/net/wan/farsync.c @@ -2483,6 +2483,7 @@ fst_add_one(struct pci_dev *pdev, const struct pci_device_id *ent) pr_err("Control memory remap failed\n"); pci_release_regions(pdev); pci_disable_device(pdev); + iounmap(card->mem); kfree(card); return -ENODEV; } -- cgit v0.10.2 From 4d846f02392a710f9604892ac3329e628e60a230 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 16 Apr 2012 23:28:07 +0000 Subject: tcp: fix tcp_grow_window() for large incoming frames tcp_grow_window() has to grow rcv_ssthresh up to window_clamp, allowing sender to increase its window. tcp_grow_window() still assumes a tcp frame is under MSS, but its no longer true with LRO/GRO. This patch fixes one of the performance issue we noticed with GRO on. Signed-off-by: Eric Dumazet Cc: Neal Cardwell Cc: Tom Herbert Acked-by: Neal Cardwell Signed-off-by: David S. Miller diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 9944c1d..3ff36406 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -335,6 +335,7 @@ static void tcp_grow_window(struct sock *sk, const struct sk_buff *skb) incr = __tcp_grow_window(sk, skb); if (incr) { + incr = max_t(int, incr, 2 * skb->len); tp->rcv_ssthresh = min(tp->rcv_ssthresh + incr, tp->window_clamp); inet_csk(sk)->icsk_ack.quick |= 1; -- cgit v0.10.2 From d3d4f0a025e621b82da08a76df4036d4267739dd Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Tue, 17 Apr 2012 14:03:53 +0000 Subject: net/sock.h: fix sk_peek_off kernel-doc warning Fix kernel-doc warning in net/sock.h: Warning(include/net/sock.h:377): No description found for parameter 'sk_peek_off' Signed-off-by: Randy Dunlap Signed-off-by: David S. Miller diff --git a/include/net/sock.h b/include/net/sock.h index a6ba1f8..188532e 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -246,6 +246,7 @@ struct cg_proto; * @sk_user_data: RPC layer private data * @sk_sndmsg_page: cached page for sendmsg * @sk_sndmsg_off: cached offset for sendmsg + * @sk_peek_off: current peek_offset value * @sk_send_head: front of stuff to transmit * @sk_security: used by security modules * @sk_mark: generic packet mark -- cgit v0.10.2 From d52fc5dde171f030170a6cb78034d166b13c9445 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Tue, 17 Apr 2012 16:26:54 -0400 Subject: fcaps: clear the same personality flags as suid when fcaps are used If a process increases permissions using fcaps all of the dangerous personality flags which are cleared for suid apps should also be cleared. Thus programs given priviledge with fcaps will continue to have address space randomization enabled even if the parent tried to disable it to make it easier to attack. Signed-off-by: Eric Paris Reviewed-by: Serge Hallyn Signed-off-by: James Morris diff --git a/security/commoncap.c b/security/commoncap.c index 0cf4b53..0ecf4ba 100644 --- a/security/commoncap.c +++ b/security/commoncap.c @@ -505,6 +505,11 @@ int cap_bprm_set_creds(struct linux_binprm *bprm) } skip: + /* if we have fs caps, clear dangerous personality flags */ + if (!cap_issubset(new->cap_permitted, old->cap_permitted)) + bprm->per_clear |= PER_CLEAR_ON_SETID; + + /* Don't let someone trace a set[ug]id/setpcap binary with the revised * credentials unless they have the appropriate permit */ -- cgit v0.10.2 From b922934d017f1cc831b017913ed7d1a56c558b43 Mon Sep 17 00:00:00 2001 From: Julian Anastasov Date: Mon, 16 Apr 2012 04:43:15 +0000 Subject: netns: do not leak net_generic data on failed init ops_init should free the net_generic data on init failure and __register_pernet_operations should not call ops_free when NET_NS is not enabled. Signed-off-by: Julian Anastasov Reviewed-by: "Eric W. Biederman" Signed-off-by: David S. Miller diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c index 0e950fd..31a5ae5 100644 --- a/net/core/net_namespace.c +++ b/net/core/net_namespace.c @@ -83,21 +83,29 @@ assign: static int ops_init(const struct pernet_operations *ops, struct net *net) { - int err; + int err = -ENOMEM; + void *data = NULL; + if (ops->id && ops->size) { - void *data = kzalloc(ops->size, GFP_KERNEL); + data = kzalloc(ops->size, GFP_KERNEL); if (!data) - return -ENOMEM; + goto out; err = net_assign_generic(net, *ops->id, data); - if (err) { - kfree(data); - return err; - } + if (err) + goto cleanup; } + err = 0; if (ops->init) - return ops->init(net); - return 0; + err = ops->init(net); + if (!err) + return 0; + +cleanup: + kfree(data); + +out: + return err; } static void ops_free(const struct pernet_operations *ops, struct net *net) @@ -448,12 +456,7 @@ static void __unregister_pernet_operations(struct pernet_operations *ops) static int __register_pernet_operations(struct list_head *list, struct pernet_operations *ops) { - int err = 0; - err = ops_init(ops, &init_net); - if (err) - ops_free(ops, &init_net); - return err; - + return ops_init(ops, &init_net); } static void __unregister_pernet_operations(struct pernet_operations *ops) -- cgit v0.10.2 From f2ec52d4c3698c995c89c579c34d818eab589d8b Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Tue, 17 Apr 2012 17:03:42 -0700 Subject: ALSA: fix core/vmaster.c kernel-doc warning Fix kernel-doc warning in sound/core/vmaster.c: Warning(sound/core/vmaster.c:429): No description found for parameter 'private_data' Signed-off-by: Randy Dunlap Signed-off-by: Takashi Iwai diff --git a/sound/core/vmaster.c b/sound/core/vmaster.c index 14a286a..8575861 100644 --- a/sound/core/vmaster.c +++ b/sound/core/vmaster.c @@ -419,6 +419,7 @@ EXPORT_SYMBOL(snd_ctl_make_virtual_master); * snd_ctl_add_vmaster_hook - Add a hook to a vmaster control * @kcontrol: vmaster kctl element * @hook: the hook function + * @private_data: the private_data pointer to be saved * * Adds the given hook to the vmaster control element so that it's called * at each time when the value is changed. -- cgit v0.10.2 From cdf27f373781d8740b874b0b5c18142df32ebb52 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Tue, 17 Apr 2012 19:13:04 -0700 Subject: ASoC: fsi: update for dmaengine prep_slave_sg fallout. Leading up to the ->device_prep_slave_sg change in 185ecb5f4fd43911c35956d4cc7d94a1da30417f 'dmaengine: add context parameter to prep_slave_sg and prep_dma_cyclic' a generic wrapper was added in place to guard against the API change, though the fsi driver wasn't updated in the process (presumably its dmaengine support hadn't been merged yet at the time). This trivially switches over to the new wrapper and gets it building again. Signed-off-by: Paul Mundt Acked-by: Kuninori Morimoto Signed-off-by: Mark Brown diff --git a/sound/soc/sh/fsi.c b/sound/soc/sh/fsi.c index 378cc5b..74ed2df 100644 --- a/sound/soc/sh/fsi.c +++ b/sound/soc/sh/fsi.c @@ -1001,11 +1001,10 @@ static void fsi_dma_do_tasklet(unsigned long data) sg_dma_address(&sg) = buf; sg_dma_len(&sg) = len; - desc = chan->device->device_prep_slave_sg(chan, &sg, 1, dir, - DMA_PREP_INTERRUPT | - DMA_CTRL_ACK); + desc = dmaengine_prep_slave_sg(chan, &sg, 1, dir, + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); if (!desc) { - dev_err(dai->dev, "device_prep_slave_sg() fail\n"); + dev_err(dai->dev, "dmaengine_prep_slave_sg() fail\n"); return; } -- cgit v0.10.2 From 99d9acdd0c5ce970eaf8e8671c0bc4cb7c6fb0c1 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Tue, 17 Apr 2012 20:37:00 +0100 Subject: drm/i915: Do not set "Enable Panel Fitter" on SNB pageflips Not only do the pageflip work without it at non-native modes (i.e. with the panel fitter enabled), it also causes normal (non-pageflipped) modesets to fail. Reported-by: Adam Jackson Tested-by: Adam Jackson Signed-off-by: Chris Wilson Wanted-by-for-fixes: Dave Airlie Signed-Off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 8be3091..5908cd5 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -7468,7 +7468,13 @@ static int intel_gen6_queue_flip(struct drm_device *dev, OUT_RING(fb->pitches[0] | obj->tiling_mode); OUT_RING(obj->gtt_offset); - pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE; + /* Contrary to the suggestions in the documentation, + * "Enable Panel Fitter" does not seem to be required when page + * flipping with a non-native mode, and worse causes a normal + * modeset to fail. + * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE; + */ + pf = 0; pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; OUT_RING(pf | pipesrc); ADVANCE_LP_RING(); -- cgit v0.10.2 From 9fd4a50a12d699207c6a65558dfa674a3fd3f150 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Wed, 11 Apr 2012 20:24:39 -0300 Subject: ARM: imx_v4_v5_defconfig: Add support for CONFIG_REGULATOR_FIXED_VOLTAGE Add support for CONFIG_REGULATOR_FIXED_VOLTAGE. Without this option the mx27_3ds cannot have the external Ethernet functional due to the need of smsc regulators. Signed-off-by: Fabio Estevam Signed-off-by: Sascha Hauer diff --git a/arch/arm/configs/imx_v4_v5_defconfig b/arch/arm/configs/imx_v4_v5_defconfig index b5ac644..6b31cb6 100644 --- a/arch/arm/configs/imx_v4_v5_defconfig +++ b/arch/arm/configs/imx_v4_v5_defconfig @@ -112,6 +112,7 @@ CONFIG_WATCHDOG=y CONFIG_IMX2_WDT=y CONFIG_MFD_MC13XXX=y CONFIG_REGULATOR=y +CONFIG_REGULATOR_FIXED_VOLTAGE=y CONFIG_REGULATOR_MC13783=y CONFIG_REGULATOR_MC13892=y CONFIG_FB=y -- cgit v0.10.2 From de1de1594faac901670356e09c8c42b73e35ebbf Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Wed, 11 Apr 2012 22:12:09 -0300 Subject: ARM: imx27-dt: Fix build due to removal of irq_domain_add_simple() commit 6b783f7c (irq_domain: Remove irq_domain_add_simple() replaced irq_domain_add_simple with irq_domain_add_legacy() Implement this conversion so that imx27-dt can be built again. Reported-by: Chris Ball Signed-off-by: Fabio Estevam Signed-off-by: Sascha Hauer diff --git a/arch/arm/mach-imx/imx27-dt.c b/arch/arm/mach-imx/imx27-dt.c index 861ceb8..ed38d03 100644 --- a/arch/arm/mach-imx/imx27-dt.c +++ b/arch/arm/mach-imx/imx27-dt.c @@ -35,7 +35,7 @@ static const struct of_dev_auxdata imx27_auxdata_lookup[] __initconst = { static int __init imx27_avic_add_irq_domain(struct device_node *np, struct device_node *interrupt_parent) { - irq_domain_add_simple(np, 0); + irq_domain_add_legacy(np, 64, 0, 0, &irq_domain_simple_ops, NULL); return 0; } @@ -44,7 +44,9 @@ static int __init imx27_gpio_add_irq_domain(struct device_node *np, { static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS; - irq_domain_add_simple(np, gpio_irq_base); + gpio_irq_base -= 32; + irq_domain_add_legacy(np, 32, gpio_irq_base, 0, &irq_domain_simple_ops, + NULL); return 0; } -- cgit v0.10.2 From 4659b7f1fa3eb33a8f9a9dd209a5823602dc6dcf Mon Sep 17 00:00:00 2001 From: Robert Lee Date: Mon, 16 Apr 2012 18:37:48 -0500 Subject: ARM: imx: Fix imx5 idle logic bug The imx5_idle() check of the tzic_eanble_wake() return value uses incorrect (inverted) logic causing all attempt to idle to fail. Signed-off-by: Robert Lee Signed-off-by: Sascha Hauer diff --git a/arch/arm/mach-imx/mm-imx5.c b/arch/arm/mach-imx/mm-imx5.c index 05250ae..e10f391 100644 --- a/arch/arm/mach-imx/mm-imx5.c +++ b/arch/arm/mach-imx/mm-imx5.c @@ -35,7 +35,7 @@ static void imx5_idle(void) } clk_enable(gpc_dvfs_clk); mx5_cpu_lp_set(WAIT_UNCLOCKED_POWER_OFF); - if (tzic_enable_wake() != 0) + if (!tzic_enable_wake()) cpu_do_idle(); clk_disable(gpc_dvfs_clk); } -- cgit v0.10.2 From fc87e080e19fdeb1120ce274423fea7b2ec2f63e Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Wed, 18 Apr 2012 13:49:20 +0300 Subject: usb: musb: drop __deprecated flag Looks like we cannot live without that double_buffer_not_ok flag due to many HW bugs this MUSB core has. So, let's drop the __deprecated flag to avoid annoying compile warnings. Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h index 93de517..f4a40f0 100644 --- a/drivers/usb/musb/musb_core.h +++ b/drivers/usb/musb/musb_core.h @@ -449,7 +449,7 @@ struct musb { * We added this flag to forcefully disable double * buffering until we get it working. */ - unsigned double_buffer_not_ok:1 __deprecated; + unsigned double_buffer_not_ok:1; struct musb_hdrc_config *config; -- cgit v0.10.2 From c67dd31c5cc745e72d033c0e7d4a2da67c90cd88 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Mon, 16 Apr 2012 17:03:10 +0200 Subject: usb: musb: davinci.c: add missing unregister usb_nop_xceiv_unregister is needed on failure of usb_get_transceiver, as done in other error-handling code in the same function. Signed-off-by: Julia Lawall Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c index 97ab975..768b4b5 100644 --- a/drivers/usb/musb/davinci.c +++ b/drivers/usb/musb/davinci.c @@ -386,7 +386,7 @@ static int davinci_musb_init(struct musb *musb) usb_nop_xceiv_register(); musb->xceiv = usb_get_transceiver(); if (!musb->xceiv) - return -ENODEV; + goto unregister; musb->mregs += DAVINCI_BASE_OFFSET; @@ -444,6 +444,7 @@ static int davinci_musb_init(struct musb *musb) fail: usb_put_transceiver(musb->xceiv); +unregister: usb_nop_xceiv_unregister(); return -ENODEV; } -- cgit v0.10.2 From b435092f70ec5ebbfb6d075d5bf3c631b49a51de Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 18 Apr 2012 12:08:23 +0200 Subject: tick: Fix oneshot broadcast setup really Sven Joachim reported, that suspend/resume on rc3 trips over a NULL pointer dereference. Linus spotted the clockevent handler being NULL. commit fa4da365b(clockevents: tTack broadcast device mode change in tick_broadcast_switch_to_oneshot()) tried to fix a problem with the broadcast device setup, which was introduced in commit 77b0d60c5( clockevents: Leave the broadcast device in shutdown mode when not needed). The initial commit avoided to set up the broadcast device when no broadcast request bits were set, but that left the broadcast device disfunctional. In consequence deep idle states which need the broadcast device were not woken up. commit fa4da365b tried to fix that by initializing the state of the broadcast facility, but that missed the fact, that nothing initializes the event handler and some other state of the underlying clock event device. The fix is to revert both commits and make only the mode setting of the clock event device conditional on the state of active broadcast users. That initializes everything except the low level device mode, but this happens when the broadcast functionality is invoked by deep idle. Reported-and-tested-by: Sven Joachim Signed-off-by: Thomas Gleixner Cc: Rafael J. Wysocki Cc: Linus Torvalds Cc: Suresh Siddha Link: http://lkml.kernel.org/r/alpine.LFD.2.02.1204181205540.2542@ionos diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c index bf57abd..119aca5 100644 --- a/kernel/time/tick-broadcast.c +++ b/kernel/time/tick-broadcast.c @@ -531,7 +531,6 @@ void tick_broadcast_setup_oneshot(struct clock_event_device *bc) int was_periodic = bc->mode == CLOCK_EVT_MODE_PERIODIC; bc->event_handler = tick_handle_oneshot_broadcast; - clockevents_set_mode(bc, CLOCK_EVT_MODE_ONESHOT); /* Take the do_timer update */ tick_do_timer_cpu = cpu; @@ -549,6 +548,7 @@ void tick_broadcast_setup_oneshot(struct clock_event_device *bc) to_cpumask(tmpmask)); if (was_periodic && !cpumask_empty(to_cpumask(tmpmask))) { + clockevents_set_mode(bc, CLOCK_EVT_MODE_ONESHOT); tick_broadcast_init_next_event(to_cpumask(tmpmask), tick_next_period); tick_broadcast_set_event(tick_next_period, 1); @@ -577,15 +577,10 @@ void tick_broadcast_switch_to_oneshot(void) raw_spin_lock_irqsave(&tick_broadcast_lock, flags); tick_broadcast_device.mode = TICKDEV_MODE_ONESHOT; - - if (cpumask_empty(tick_get_broadcast_mask())) - goto end; - bc = tick_broadcast_device.evtdev; if (bc) tick_broadcast_setup_oneshot(bc); -end: raw_spin_unlock_irqrestore(&tick_broadcast_lock, flags); } -- cgit v0.10.2 From 3626479e482aa3247aac03724094ba6c13ea1e46 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 17 Apr 2012 18:32:19 -0300 Subject: [media] dvb_frontend: Fix a regression when switching back to DVB-S There are some softwares (Kaffeine and likely xine) that uses a DVBv5 call to switch to DVB-S2, but expects that a DVBv3 call to switch back to DVB-S. Well, this is not right, as a DVBv3 call doesn't know anything about delivery systems. However, as, by accident, this used to work, we need to restore its behavior, in order to avoid regressions with those softwares. Reported on this Fedora 16 bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=812895 Reported-by: Dieter Roever Cc: stable@kernel.org # for version 3.3 Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c index 39696c6..0f64d71 100644 --- a/drivers/media/dvb/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb/dvb-core/dvb_frontend.c @@ -1446,6 +1446,28 @@ static int set_delivery_system(struct dvb_frontend *fe, u32 desired_system) __func__); return -EINVAL; } + /* + * Get a delivery system that is compatible with DVBv3 + * NOTE: in order for this to work with softwares like Kaffeine that + * uses a DVBv5 call for DVB-S2 and a DVBv3 call to go back to + * DVB-S, drivers that support both should put the SYS_DVBS entry + * before the SYS_DVBS2, otherwise it won't switch back to DVB-S. + * The real fix is that userspace applications should not use DVBv3 + * and not trust on calling FE_SET_FRONTEND to switch the delivery + * system. + */ + ncaps = 0; + while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { + if (fe->ops.delsys[ncaps] == desired_system) { + delsys = desired_system; + break; + } + ncaps++; + } + if (delsys == SYS_UNDEFINED) { + dprintk("%s() Couldn't find a delivery system that matches %d\n", + __func__, desired_system); + } } else { /* * This is a DVBv5 call. So, it likely knows the supported @@ -1494,9 +1516,10 @@ static int set_delivery_system(struct dvb_frontend *fe, u32 desired_system) __func__); return -EINVAL; } - c->delivery_system = delsys; } + c->delivery_system = delsys; + /* * The DVBv3 or DVBv5 call is requesting a different system. So, * emulation is needed. -- cgit v0.10.2 From e4459e1682c107d7ee1bf102c1ba534230e9b50b Mon Sep 17 00:00:00 2001 From: Alexey Khoroshilov Date: Thu, 5 Apr 2012 18:53:20 -0300 Subject: [media] drxk: Does not unlock mutex if sanity check failed in scu_command() If sanity check fails in scu_command(), goto error leads to unlock of an unheld mutex. The check should not fail in reality, but it nevertheless worth fixing. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov Cc: stable@kernel.org Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/dvb/frontends/drxk_hard.c b/drivers/media/dvb/frontends/drxk_hard.c index 36d1175..a414b1f 100644 --- a/drivers/media/dvb/frontends/drxk_hard.c +++ b/drivers/media/dvb/frontends/drxk_hard.c @@ -1520,8 +1520,10 @@ static int scu_command(struct drxk_state *state, dprintk(1, "\n"); if ((cmd == 0) || ((parameterLen > 0) && (parameter == NULL)) || - ((resultLen > 0) && (result == NULL))) - goto error; + ((resultLen > 0) && (result == NULL))) { + printk(KERN_ERR "drxk: Error %d on %s\n", status, __func__); + return status; + } mutex_lock(&state->mutex); -- cgit v0.10.2 From d9b786955f80fb306471fdb9ea24c6d03af6ca36 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?David=20H=C3=A4rdeman?= Date: Sun, 8 Apr 2012 06:13:04 -0300 Subject: [media] rc-core: set mode for winbond-cir MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Setting the correct mode is required by rc-core or scancodes won't be generated (which isn't very user-friendly). This one-line fix should be suitable for 3.4-rc2. Signed-off-by: David Härdeman Cc: stable@kernel.org Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/rc/winbond-cir.c b/drivers/media/rc/winbond-cir.c index b09c5fa..af52658 100644 --- a/drivers/media/rc/winbond-cir.c +++ b/drivers/media/rc/winbond-cir.c @@ -1046,6 +1046,7 @@ wbcir_probe(struct pnp_dev *device, const struct pnp_device_id *dev_id) goto exit_unregister_led; } + data->dev->driver_type = RC_DRIVER_IR_RAW; data->dev->driver_name = WBCIR_NAME; data->dev->input_name = WBCIR_NAME; data->dev->input_phys = "wbcir/cir0"; -- cgit v0.10.2 From adae0fe0ea87e8fb1a72dde304937c60759b495f Mon Sep 17 00:00:00 2001 From: Stanislav Kinsbursky Date: Thu, 5 Apr 2012 21:04:37 +0400 Subject: SUNRPC: register PipeFS file system after pernet sybsystem PipeFS superblock creation routine relays on SUNRPC pernet data presense, which is created on register_pernet_subsys() call in SUNRPC module init function. Registering of PipeFS filesystem prior to registering of per-net subsystem leads to races (mount of PipeFS can dereference uninitialized data). Signed-off-by: Stanislav Kinsbursky Signed-off-by: Trond Myklebust diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c index 8adfc88..3d6498a 100644 --- a/net/sunrpc/sunrpc_syms.c +++ b/net/sunrpc/sunrpc_syms.c @@ -75,20 +75,21 @@ static struct pernet_operations sunrpc_net_ops = { static int __init init_sunrpc(void) { - int err = register_rpc_pipefs(); + int err = rpc_init_mempool(); if (err) goto out; - err = rpc_init_mempool(); - if (err) - goto out2; err = rpcauth_init_module(); if (err) - goto out3; + goto out2; cache_initialize(); err = register_pernet_subsys(&sunrpc_net_ops); if (err) + goto out3; + + err = register_rpc_pipefs(); + if (err) goto out4; #ifdef RPC_DEBUG rpc_register_sysctl(); @@ -98,11 +99,11 @@ init_sunrpc(void) return 0; out4: - rpcauth_remove_module(); + unregister_pernet_subsys(&sunrpc_net_ops); out3: - rpc_destroy_mempool(); + rpcauth_remove_module(); out2: - unregister_rpc_pipefs(); + rpc_destroy_mempool(); out: return err; } -- cgit v0.10.2 From ca138f368a36dba40d3ef4a53d64af2011cda3c7 Mon Sep 17 00:00:00 2001 From: Fred Isaman Date: Thu, 5 Apr 2012 15:26:36 -0400 Subject: NFS: check for req==NULL in nfs_try_to_update_request cleanup Signed-off-by: Fred Isaman Signed-off-by: Trond Myklebust diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 2c68818..9b8d4d4 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -682,7 +682,8 @@ static struct nfs_page *nfs_try_to_update_request(struct inode *inode, req->wb_bytes = rqend - req->wb_offset; out_unlock: spin_unlock(&inode->i_lock); - nfs_clear_request_commit(req); + if (req) + nfs_clear_request_commit(req); return req; out_flushme: spin_unlock(&inode->i_lock); -- cgit v0.10.2 From cbf2829b61c136edcba302a5e1b6b40e97d32c00 Mon Sep 17 00:00:00 2001 From: Bryan O'Donoghue Date: Wed, 18 Apr 2012 17:37:39 +0100 Subject: x86, apic: APIC code touches invalid MSR on P5 class machines Current APIC code assumes MSR_IA32_APICBASE is present for all systems. Pentium Classic P5 and friends didn't have this MSR. MSR_IA32_APICBASE was introduced as an architectural MSR by Intel @ P6. Code paths that can touch this MSR invalidly are when vendor == Intel && cpu-family == 5 and APIC bit is set in CPUID - or when you simply pass lapic on the kernel command line, on a P5. The below patch stops Linux incorrectly interfering with the MSR_IA32_APICBASE for P5 class machines. Other code paths exist that touch the MSR - however those paths are not currently reachable for a conformant P5. Signed-off-by: Bryan O'Donoghue Link: http://lkml.kernel.org/r/4F8EEDD3.1080404@linux.intel.com Signed-off-by: H. Peter Anvin Cc: diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c index 11544d8..edc2448 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -1637,9 +1637,11 @@ static int __init apic_verify(void) mp_lapic_addr = APIC_DEFAULT_PHYS_BASE; /* The BIOS may have set up the APIC at some other address */ - rdmsr(MSR_IA32_APICBASE, l, h); - if (l & MSR_IA32_APICBASE_ENABLE) - mp_lapic_addr = l & MSR_IA32_APICBASE_BASE; + if (boot_cpu_data.x86 >= 6) { + rdmsr(MSR_IA32_APICBASE, l, h); + if (l & MSR_IA32_APICBASE_ENABLE) + mp_lapic_addr = l & MSR_IA32_APICBASE_BASE; + } pr_info("Found and enabled local APIC!\n"); return 0; @@ -1657,13 +1659,15 @@ int __init apic_force_enable(unsigned long addr) * MSR. This can only be done in software for Intel P6 or later * and AMD K7 (Model > 1) or later. */ - rdmsr(MSR_IA32_APICBASE, l, h); - if (!(l & MSR_IA32_APICBASE_ENABLE)) { - pr_info("Local APIC disabled by BIOS -- reenabling.\n"); - l &= ~MSR_IA32_APICBASE_BASE; - l |= MSR_IA32_APICBASE_ENABLE | addr; - wrmsr(MSR_IA32_APICBASE, l, h); - enabled_via_apicbase = 1; + if (boot_cpu_data.x86 >= 6) { + rdmsr(MSR_IA32_APICBASE, l, h); + if (!(l & MSR_IA32_APICBASE_ENABLE)) { + pr_info("Local APIC disabled by BIOS -- reenabling.\n"); + l &= ~MSR_IA32_APICBASE_BASE; + l |= MSR_IA32_APICBASE_ENABLE | addr; + wrmsr(MSR_IA32_APICBASE, l, h); + enabled_via_apicbase = 1; + } } return apic_verify(); } @@ -2209,10 +2213,12 @@ static void lapic_resume(void) * FIXME! This will be wrong if we ever support suspend on * SMP! We'll need to do this as part of the CPU restore! */ - rdmsr(MSR_IA32_APICBASE, l, h); - l &= ~MSR_IA32_APICBASE_BASE; - l |= MSR_IA32_APICBASE_ENABLE | mp_lapic_addr; - wrmsr(MSR_IA32_APICBASE, l, h); + if (boot_cpu_data.x86 >= 6) { + rdmsr(MSR_IA32_APICBASE, l, h); + l &= ~MSR_IA32_APICBASE_BASE; + l |= MSR_IA32_APICBASE_ENABLE | mp_lapic_addr; + wrmsr(MSR_IA32_APICBASE, l, h); + } } maxlvt = lapic_get_maxlvt(); -- cgit v0.10.2 From 848cce0d4102b5b4b26b0987b43e1919d462afe2 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Tue, 21 Feb 2012 17:04:28 +0800 Subject: Btrfs: avoid setting ->d_op twice Follow those instructions, and you'll trigger a warning in the beginning of d_set_d_op(): # mkfs.btrfs /dev/loop3 # mount /dev/loop3 /mnt # btrfs sub create /mnt/sub # btrfs sub snap /mnt /mnt/snap # touch /mnt/snap/sub touch: cannot touch `tmp': Permission denied __d_alloc() set d_op to sb->s_d_op (btrfs_dentry_operations), and then simple_lookup() reset it to simple_dentry_operations, which triggered the warning. Signed-off-by: Li Zefan diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 1be3136..a682c26 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -4069,7 +4069,7 @@ static struct inode *new_simple_dir(struct super_block *s, BTRFS_I(inode)->dummy_inode = 1; inode->i_ino = BTRFS_EMPTY_SUBVOL_DIR_OBJECTID; - inode->i_op = &simple_dir_inode_operations; + inode->i_op = &btrfs_dir_ro_inode_operations; inode->i_fop = &simple_dir_operations; inode->i_mode = S_IFDIR | S_IRUGO | S_IWUSR | S_IXUGO; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; @@ -4140,14 +4140,18 @@ struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry) static int btrfs_dentry_delete(const struct dentry *dentry) { struct btrfs_root *root; + struct inode *inode = dentry->d_inode; - if (!dentry->d_inode && !IS_ROOT(dentry)) - dentry = dentry->d_parent; + if (!inode && !IS_ROOT(dentry)) + inode = dentry->d_parent->d_inode; - if (dentry->d_inode) { - root = BTRFS_I(dentry->d_inode)->root; + if (inode) { + root = BTRFS_I(inode)->root; if (btrfs_root_refs(&root->root_item) == 0) return 1; + + if (btrfs_ino(inode) == BTRFS_EMPTY_SUBVOL_DIR_OBJECTID) + return 1; } return 0; } -- cgit v0.10.2 From 8c9c2bf7a3c4f7e9d158c0be9c49f372fb943ad2 Mon Sep 17 00:00:00 2001 From: Arne Jansen Date: Sat, 25 Feb 2012 09:09:30 +0100 Subject: btrfs: fix race in reada When inserting into the radix tree returns EEXIST, get the existing entry without giving up the spinlock in between. There was a race for both the zones trees and the extent tree. Signed-off-by: Arne Jansen diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index a682c26..98ee5a5 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -4332,7 +4332,13 @@ static int btrfs_real_readdir(struct file *filp, void *dirent, } no_dentry: /* is this a reference to our own snapshot? If so - * skip it + * skip it. + * + * In contrast to old kernels, we insert the snapshot's + * dir item and dir index after it has been created, so + * we won't find a reference to our own snapshot. We + * still keep the following code for backward + * compatibility. */ if (location.type == BTRFS_ROOT_ITEM_KEY && location.objectid == root->root_key.objectid) { diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c index dc5d331..8dec650 100644 --- a/fs/btrfs/reada.c +++ b/fs/btrfs/reada.c @@ -250,14 +250,12 @@ static struct reada_zone *reada_find_zone(struct btrfs_fs_info *fs_info, struct btrfs_bio *bbio) { int ret; - int looped = 0; struct reada_zone *zone; struct btrfs_block_group_cache *cache = NULL; u64 start; u64 end; int i; -again: zone = NULL; spin_lock(&fs_info->reada_lock); ret = radix_tree_gang_lookup(&dev->reada_zones, (void **)&zone, @@ -274,9 +272,6 @@ again: spin_unlock(&fs_info->reada_lock); } - if (looped) - return NULL; - cache = btrfs_lookup_block_group(fs_info, logical); if (!cache) return NULL; @@ -307,13 +302,15 @@ again: ret = radix_tree_insert(&dev->reada_zones, (unsigned long)(zone->end >> PAGE_CACHE_SHIFT), zone); - spin_unlock(&fs_info->reada_lock); - if (ret) { + if (ret == -EEXIST) { kfree(zone); - looped = 1; - goto again; + ret = radix_tree_gang_lookup(&dev->reada_zones, (void **)&zone, + logical >> PAGE_CACHE_SHIFT, 1); + if (ret == 1) + kref_get(&zone->refcnt); } + spin_unlock(&fs_info->reada_lock); return zone; } @@ -323,8 +320,8 @@ static struct reada_extent *reada_find_extent(struct btrfs_root *root, struct btrfs_key *top, int level) { int ret; - int looped = 0; struct reada_extent *re = NULL; + struct reada_extent *re_exist = NULL; struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_mapping_tree *map_tree = &fs_info->mapping_tree; struct btrfs_bio *bbio = NULL; @@ -335,14 +332,13 @@ static struct reada_extent *reada_find_extent(struct btrfs_root *root, int i; unsigned long index = logical >> PAGE_CACHE_SHIFT; -again: spin_lock(&fs_info->reada_lock); re = radix_tree_lookup(&fs_info->reada_tree, index); if (re) kref_get(&re->refcnt); spin_unlock(&fs_info->reada_lock); - if (re || looped) + if (re) return re; re = kzalloc(sizeof(*re), GFP_NOFS); @@ -398,12 +394,15 @@ again: /* insert extent in reada_tree + all per-device trees, all or nothing */ spin_lock(&fs_info->reada_lock); ret = radix_tree_insert(&fs_info->reada_tree, index, re); + if (ret == -EEXIST) { + re_exist = radix_tree_lookup(&fs_info->reada_tree, index); + BUG_ON(!re_exist); + kref_get(&re_exist->refcnt); + spin_unlock(&fs_info->reada_lock); + goto error; + } if (ret) { spin_unlock(&fs_info->reada_lock); - if (ret != -ENOMEM) { - /* someone inserted the extent in the meantime */ - looped = 1; - } goto error; } for (i = 0; i < nzones; ++i) { @@ -450,9 +449,7 @@ error: } kfree(bbio); kfree(re); - if (looped) - goto again; - return NULL; + return re_exist; } static void reada_kref_dummy(struct kref *kr) -- cgit v0.10.2 From 207a232ccac0a8cb79d304bd17298dbc96e2e082 Mon Sep 17 00:00:00 2001 From: Arne Jansen Date: Sat, 25 Feb 2012 09:09:47 +0100 Subject: btrfs: don't add both copies of DUP to reada extent tree Normally when there are 2 copies of a block, we add both to the reada extent tree and prefetch only the one that is easier to reach. This way we can better utilize multiple devices. In case of DUP this makes no sense as both copies reside on the same device. Signed-off-by: Arne Jansen diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c index 8dec650..ac5d010 100644 --- a/fs/btrfs/reada.c +++ b/fs/btrfs/reada.c @@ -326,6 +326,7 @@ static struct reada_extent *reada_find_extent(struct btrfs_root *root, struct btrfs_mapping_tree *map_tree = &fs_info->mapping_tree; struct btrfs_bio *bbio = NULL; struct btrfs_device *dev; + struct btrfs_device *prev_dev; u32 blocksize; u64 length; int nzones = 0; @@ -405,8 +406,20 @@ static struct reada_extent *reada_find_extent(struct btrfs_root *root, spin_unlock(&fs_info->reada_lock); goto error; } + prev_dev = NULL; for (i = 0; i < nzones; ++i) { dev = bbio->stripes[i].dev; + if (dev == prev_dev) { + /* + * in case of DUP, just add the first zone. As both + * are on the same device, there's nothing to gain + * from adding both. + * Also, it wouldn't work, as the tree is per device + * and adding would fail with EEXIST + */ + continue; + } + prev_dev = dev; ret = radix_tree_insert(&dev->reada_extents, index, re); if (ret) { while (--i >= 0) { -- cgit v0.10.2 From 9ecf8c0d4f2ea5eb39e0924d9b102b5c3300f291 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 18 Apr 2012 12:29:32 +0200 Subject: Revert "ACPI: Make ACPI interrupt threaded" This reverts commit 6fe0d0628245fdcd6fad8b837c81e8f7ebc3364d. Paul bisected this regression. The conversion was done blindly and is wrong, as it does not provide a primary handler to disable the level type irq on the device level. Neither does it set the IRQF_ONESHOT flag which handles that at the irq line level. This can't be done as the interrupt might be shared, though we might extend the core to force it. So an interrupt on this line will wake up the thread, but immediately unmask the irq after that. Due to the interrupt being level type the hardware interrupt is raised over and over and prevents the irq thread from handling it. Fail. request_irq() unfortunately does not refuse such a request and the patch was obviously never tested with real interrupts. Bisected-by: Paul Bolle Signed-off-by: Thomas Gleixner Signed-off-by: Linus Torvalds diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index ba14fb9..c3881b2 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -607,8 +607,7 @@ acpi_os_install_interrupt_handler(u32 gsi, acpi_osd_handler handler, acpi_irq_handler = handler; acpi_irq_context = context; - if (request_threaded_irq(irq, NULL, acpi_irq, IRQF_SHARED, "acpi", - acpi_irq)) { + if (request_irq(irq, acpi_irq, IRQF_SHARED, "acpi", acpi_irq)) { printk(KERN_ERR PREFIX "SCI (IRQ%d) allocation failed\n", irq); acpi_irq_handler = NULL; return AE_NOT_ACQUIRED; -- cgit v0.10.2 From 8d082fb727ac11930ea20bf1612e334ea7c2b697 Mon Sep 17 00:00:00 2001 From: Liu Bo Date: Tue, 3 Apr 2012 09:56:53 +0800 Subject: Btrfs: do not mount when we have a sectorsize unequal to PAGE_SIZE Our code is not ready to cope with a sectorsize that's not equal to PAGE_SIZE. It will lead to hanging-on while writing something. Signed-off-by: Liu Bo diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 20196f4..b9866f2 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -2254,9 +2254,9 @@ int open_ctree(struct super_block *sb, goto fail_sb_buffer; } - if (sectorsize < PAGE_SIZE) { - printk(KERN_WARNING "btrfs: Incompatible sector size " - "found on %s\n", sb->s_id); + if (sectorsize != PAGE_SIZE) { + printk(KERN_WARNING "btrfs: Incompatible sector size(%lu) " + "found on %s\n", (unsigned long)sectorsize, sb->s_id); goto fail_sb_buffer; } -- cgit v0.10.2 From 871383be592ba7e819d27556591e315a0df38cee Mon Sep 17 00:00:00 2001 From: David Sterba Date: Mon, 2 Apr 2012 18:31:37 +0200 Subject: btrfs: add missing unlocks to transaction abort paths Added in commit 49b25e0540904be0bf558b84475c69d72e4de66e ("btrfs: enhance transaction abort infrastructure") Reported-by: Dan Carpenter Signed-off-by: David Sterba diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index 11b77a5..3642225 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -73,8 +73,10 @@ loop: cur_trans = root->fs_info->running_transaction; if (cur_trans) { - if (cur_trans->aborted) + if (cur_trans->aborted) { + spin_unlock(&root->fs_info->trans_lock); return cur_trans->aborted; + } atomic_inc(&cur_trans->use_count); atomic_inc(&cur_trans->num_writers); cur_trans->num_joined++; @@ -1400,6 +1402,7 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, ret = commit_fs_roots(trans, root); if (ret) { mutex_unlock(&root->fs_info->tree_log_mutex); + mutex_unlock(&root->fs_info->reloc_mutex); goto cleanup_transaction; } @@ -1411,6 +1414,7 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, ret = commit_cowonly_roots(trans, root); if (ret) { mutex_unlock(&root->fs_info->tree_log_mutex); + mutex_unlock(&root->fs_info->reloc_mutex); goto cleanup_transaction; } -- cgit v0.10.2 From 8e52acf70459020d7e9e9fda25066be4da520943 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Mon, 12 Mar 2012 16:39:28 +0800 Subject: Btrfs: retrurn void from clear_state_bit Currently it returns a set of bits that were cleared, but this return value is not used at all. Moreover it doesn't seem to be useful, because we may clear the bits of a few extent_states, but only the cleared bits of last one is returned. Signed-off-by: Li Zefan diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 4789770..05951bd 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -404,18 +404,16 @@ static int split_state(struct extent_io_tree *tree, struct extent_state *orig, /* * utility function to clear some bits in an extent state struct. - * it will optionally wake up any one waiting on this state (wake == 1), or - * forcibly remove the state from the tree (delete == 1). + * it will optionally wake up any one waiting on this state (wake == 1) * * If no bits are set on the state struct after clearing things, the * struct is freed and removed from the tree */ -static int clear_state_bit(struct extent_io_tree *tree, +static void clear_state_bit(struct extent_io_tree *tree, struct extent_state *state, int *bits, int wake) { int bits_to_clear = *bits & ~EXTENT_CTLBITS; - int ret = state->state & bits_to_clear; if ((bits_to_clear & EXTENT_DIRTY) && (state->state & EXTENT_DIRTY)) { u64 range = state->end - state->start + 1; @@ -437,7 +435,6 @@ static int clear_state_bit(struct extent_io_tree *tree, } else { merge_state(tree, state); } - return ret; } static struct extent_state * -- cgit v0.10.2 From cdc6a3952558f00b1bc3b6401e1cf98797632fe2 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Mon, 12 Mar 2012 16:39:48 +0800 Subject: Btrfs: avoid possible use-after-free in clear_extent_bit() clear_extent_bit() { next_node = rb_next(&state->rb_node); ... clear_state_bit(state); <-- this may free next_node if (next_node) { state = rb_entry(next_node); ... } } clear_state_bit() calls merge_state() which may free the next node of the passing extent_state, so clear_extent_bit() may end up referencing freed memory. Signed-off-by: Li Zefan diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 05951bd..11eeb81 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -402,6 +402,15 @@ static int split_state(struct extent_io_tree *tree, struct extent_state *orig, return 0; } +static struct extent_state *next_state(struct extent_state *state) +{ + struct rb_node *next = rb_next(&state->rb_node); + if (next) + return rb_entry(next, struct extent_state, rb_node); + else + return NULL; +} + /* * utility function to clear some bits in an extent state struct. * it will optionally wake up any one waiting on this state (wake == 1) @@ -409,10 +418,11 @@ static int split_state(struct extent_io_tree *tree, struct extent_state *orig, * If no bits are set on the state struct after clearing things, the * struct is freed and removed from the tree */ -static void clear_state_bit(struct extent_io_tree *tree, - struct extent_state *state, - int *bits, int wake) +static struct extent_state *clear_state_bit(struct extent_io_tree *tree, + struct extent_state *state, + int *bits, int wake) { + struct extent_state *next; int bits_to_clear = *bits & ~EXTENT_CTLBITS; if ((bits_to_clear & EXTENT_DIRTY) && (state->state & EXTENT_DIRTY)) { @@ -425,6 +435,7 @@ static void clear_state_bit(struct extent_io_tree *tree, if (wake) wake_up(&state->wq); if (state->state == 0) { + next = next_state(state); if (state->tree) { rb_erase(&state->rb_node, &tree->state); state->tree = NULL; @@ -434,7 +445,9 @@ static void clear_state_bit(struct extent_io_tree *tree, } } else { merge_state(tree, state); + next = next_state(state); } + return next; } static struct extent_state * @@ -473,7 +486,6 @@ int clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end, struct extent_state *state; struct extent_state *cached; struct extent_state *prealloc = NULL; - struct rb_node *next_node; struct rb_node *node; u64 last_end; int err; @@ -525,14 +537,11 @@ hit_next: WARN_ON(state->end < start); last_end = state->end; - if (state->end < end && !need_resched()) - next_node = rb_next(&state->rb_node); - else - next_node = NULL; - /* the state doesn't have the wanted bits, go ahead */ - if (!(state->state & bits)) + if (!(state->state & bits)) { + state = next_state(state); goto next; + } /* * | ---- desired range ---- | @@ -590,16 +599,13 @@ hit_next: goto out; } - clear_state_bit(tree, state, &bits, wake); + state = clear_state_bit(tree, state, &bits, wake); next: if (last_end == (u64)-1) goto out; start = last_end + 1; - if (start <= end && next_node) { - state = rb_entry(next_node, struct extent_state, - rb_node); + if (start <= end && state && !need_resched()) goto hit_next; - } goto search_again; out: -- cgit v0.10.2 From 4735fb282830c0966b301dabcccf4753fa6604bb Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Thu, 12 Apr 2012 22:47:52 +0200 Subject: Btrfs: Make free_ipath() deal gracefully with NULL pointers Make free_ipath() behave like most other freeing functions in the kernel and gracefully do nothing when passed a NULL pointer. Besides this making the bahaviour consistent with functions such as kfree(), vfree(), btrfs_free_path() etc etc, it also fixes a real NULL deref issue in fs/btrfs/ioctl.c::btrfs_ioctl_ino_to_path(). In that function we have this code: ... ipath = init_ipath(size, root, path); if (IS_ERR(ipath)) { ret = PTR_ERR(ipath); ipath = NULL; goto out; } ... out: btrfs_free_path(path); free_ipath(ipath); ... If we ever take the true branch of that 'if' statement we'll end up passing a NULL pointer to free_ipath() which will subsequently dereference it and we'll go "Boom" :-( This patch will avoid that. Signed-off-by: Jesper Juhl diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index f4e9074..b332ff0 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -1414,6 +1414,8 @@ struct inode_fs_paths *init_ipath(s32 total_bytes, struct btrfs_root *fs_root, void free_ipath(struct inode_fs_paths *ipath) { + if (!ipath) + return; kfree(ipath->fspath); kfree(ipath); } -- cgit v0.10.2 From aefc1eb13ebbb86c5ffade8a9e2425cd71032d7e Mon Sep 17 00:00:00 2001 From: Jan Schmidt Date: Fri, 13 Apr 2012 12:28:00 +0200 Subject: Btrfs: don't call free_extent_buffer twice in iterate_irefs Avoid calling free_extent_buffer more than once when the iterator function returns non-zero. The only code that uses this is scrub repair for corrupted nodatasum blocks. Signed-off-by: Jan Schmidt diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index b332ff0..fb56bcc 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -1247,7 +1247,7 @@ static int iterate_irefs(u64 inum, struct btrfs_root *fs_root, struct btrfs_path *path, iterate_irefs_t *iterate, void *ctx) { - int ret; + int ret = 0; int slot; u32 cur; u32 len; @@ -1259,7 +1259,7 @@ static int iterate_irefs(u64 inum, struct btrfs_root *fs_root, struct btrfs_inode_ref *iref; struct btrfs_key found_key; - while (1) { + while (!ret) { ret = inode_ref_info(inum, parent ? parent+1 : 0, fs_root, path, &found_key); if (ret < 0) @@ -1288,10 +1288,8 @@ static int iterate_irefs(u64 inum, struct btrfs_root *fs_root, (unsigned long long)found_key.objectid, (unsigned long long)fs_root->objectid); ret = iterate(parent, iref, eb, ctx); - if (ret) { - free_extent_buffer(eb); + if (ret) break; - } len = sizeof(*iref) + name_len; iref = (struct btrfs_inode_ref *)((char *)iref + len); } -- cgit v0.10.2 From b916a59adfdc875381b68ced258694b434cf43ae Mon Sep 17 00:00:00 2001 From: Jan Schmidt Date: Fri, 13 Apr 2012 12:28:08 +0200 Subject: Btrfs: add missing read locks in backref.c iref_to_path and iterate_irefs both increment the eb's refcount to use it after releasing the path. Both depend on consistent data remaining in the extent buffer and need a read lock to protect it. Signed-off-by: Jan Schmidt diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index fb56bcc..bcec067 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -22,6 +22,7 @@ #include "ulist.h" #include "transaction.h" #include "delayed-ref.h" +#include "locking.h" /* * this structure records all encountered refs on the way up to the root @@ -893,18 +894,22 @@ static char *iref_to_path(struct btrfs_root *fs_root, struct btrfs_path *path, s64 bytes_left = size - 1; struct extent_buffer *eb = eb_in; struct btrfs_key found_key; + int leave_spinning = path->leave_spinning; if (bytes_left >= 0) dest[bytes_left] = '\0'; + path->leave_spinning = 1; while (1) { len = btrfs_inode_ref_name_len(eb, iref); bytes_left -= len; if (bytes_left >= 0) read_extent_buffer(eb, dest + bytes_left, (unsigned long)(iref + 1), len); - if (eb != eb_in) + if (eb != eb_in) { + btrfs_tree_read_unlock_blocking(eb); free_extent_buffer(eb); + } ret = inode_ref_info(parent, 0, fs_root, path, &found_key); if (ret > 0) ret = -ENOENT; @@ -919,8 +924,11 @@ static char *iref_to_path(struct btrfs_root *fs_root, struct btrfs_path *path, slot = path->slots[0]; eb = path->nodes[0]; /* make sure we can use eb after releasing the path */ - if (eb != eb_in) + if (eb != eb_in) { atomic_inc(&eb->refs); + btrfs_tree_read_lock(eb); + btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK); + } btrfs_release_path(path); iref = btrfs_item_ptr(eb, slot, struct btrfs_inode_ref); @@ -931,6 +939,7 @@ static char *iref_to_path(struct btrfs_root *fs_root, struct btrfs_path *path, } btrfs_release_path(path); + path->leave_spinning = leave_spinning; if (ret) return ERR_PTR(ret); @@ -1260,6 +1269,7 @@ static int iterate_irefs(u64 inum, struct btrfs_root *fs_root, struct btrfs_key found_key; while (!ret) { + path->leave_spinning = 1; ret = inode_ref_info(inum, parent ? parent+1 : 0, fs_root, path, &found_key); if (ret < 0) @@ -1275,6 +1285,8 @@ static int iterate_irefs(u64 inum, struct btrfs_root *fs_root, eb = path->nodes[0]; /* make sure we can use eb after releasing the path */ atomic_inc(&eb->refs); + btrfs_tree_read_lock(eb); + btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK); btrfs_release_path(path); item = btrfs_item_nr(eb, slot); @@ -1293,6 +1305,7 @@ static int iterate_irefs(u64 inum, struct btrfs_root *fs_root, len = sizeof(*iref) + name_len; iref = (struct btrfs_inode_ref *)((char *)iref + len); } + btrfs_tree_read_unlock_blocking(eb); free_extent_buffer(eb); } -- cgit v0.10.2 From 37db63a400d3bac467795aa43901065fd8d903b7 Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Fri, 13 Apr 2012 17:05:08 +0300 Subject: Btrfs: fix max chunk size check in chunk allocator Fix a bug, where in case we need to adjust stripe_size so that the length of the resulting chunk is less than or equal to max_chunk_size, DUP chunks turn out to be only half as big as they could be. Cc: Arne Jansen Signed-off-by: Ilya Dryomov diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 759d024..ce289af 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -3324,12 +3324,14 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans, stripe_size = devices_info[ndevs-1].max_avail; num_stripes = ndevs * dev_stripes; - if (stripe_size * num_stripes > max_chunk_size * ncopies) { + if (stripe_size * ndevs > max_chunk_size * ncopies) { stripe_size = max_chunk_size * ncopies; - do_div(stripe_size, num_stripes); + do_div(stripe_size, ndevs); } do_div(stripe_size, dev_stripes); + + /* align to BTRFS_STRIPE_LEN */ do_div(stripe_size, BTRFS_STRIPE_LEN); stripe_size *= BTRFS_STRIPE_LEN; -- cgit v0.10.2 From 8a3db1849e9e2563727ea2dc32737502e0096641 Mon Sep 17 00:00:00 2001 From: Sergei Trofimovich Date: Mon, 16 Apr 2012 06:44:37 +0300 Subject: btrfs: fix early abort in 'remount' Cc: Jeff Mahoney Cc: Chris Mason Cc: Josef Bacik Signed-off-by: Sergei Trofimovich diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 84571d7..43aa2dd 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -1152,13 +1152,15 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data) if (ret) goto restore; } else { - if (fs_info->fs_devices->rw_devices == 0) + if (fs_info->fs_devices->rw_devices == 0) { ret = -EACCES; goto restore; + } - if (btrfs_super_log_root(fs_info->super_copy) != 0) + if (btrfs_super_log_root(fs_info->super_copy) != 0) { ret = -EINVAL; goto restore; + } ret = btrfs_cleanup_fs_roots(fs_info); if (ret) -- cgit v0.10.2 From 48d282326b3ce5f435835f5fb0e3231c399f4f9a Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sat, 14 Apr 2012 11:24:33 +0200 Subject: fs/btrfs/volumes.c: add missing free_fs_devices Free fs_devices as done in the error-handling code just below. Signed-off-by: Julia Lawall diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index ce289af..3b98417 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -4352,8 +4352,10 @@ static int open_seed_devices(struct btrfs_root *root, u8 *fsid) ret = __btrfs_open_devices(fs_devices, FMODE_READ, root->fs_info->bdev_holder); - if (ret) + if (ret) { + free_fs_devices(fs_devices); goto out; + } if (!fs_devices->seeding) { __btrfs_close_devices(fs_devices); -- cgit v0.10.2 From 5cf1ab56133ad7b712673c071b439d4a555a2d1e Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Mon, 16 Apr 2012 09:42:26 -0400 Subject: Btrfs: always store the mirror we read the eb from A user reported a panic where we were trying to fix a bad mirror but the mirror number we were giving was 0, which is invalid. This is because we don't do the transid verification until after the read, so as far as the read code is concerned the read was a success. So instead store the mirror we read from so that if there is some failure post read we know which mirror to try next and which mirror needs to be fixed if we find a good copy of the block. Thanks, Signed-off-by: Josef Bacik diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index b9866f2..d0c969b 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -383,17 +383,16 @@ static int btree_read_extent_buffer_pages(struct btrfs_root *root, if (test_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags)) break; - if (!failed_mirror) { - failed = 1; - printk(KERN_ERR "failed mirror was %d\n", eb->failed_mirror); - failed_mirror = eb->failed_mirror; - } - num_copies = btrfs_num_copies(&root->fs_info->mapping_tree, eb->start, eb->len); if (num_copies == 1) break; + if (!failed_mirror) { + failed = 1; + failed_mirror = eb->read_mirror; + } + mirror_num++; if (mirror_num == failed_mirror) mirror_num++; @@ -564,7 +563,7 @@ struct extent_buffer *find_eb_for_page(struct extent_io_tree *tree, } static int btree_readpage_end_io_hook(struct page *page, u64 start, u64 end, - struct extent_state *state) + struct extent_state *state, int mirror) { struct extent_io_tree *tree; u64 found_start; @@ -589,6 +588,7 @@ static int btree_readpage_end_io_hook(struct page *page, u64 start, u64 end, if (!reads_done) goto err; + eb->read_mirror = mirror; if (test_bit(EXTENT_BUFFER_IOERR, &eb->bflags)) { ret = -EIO; goto err; @@ -652,7 +652,7 @@ static int btree_io_failed_hook(struct page *page, int failed_mirror) eb = (struct extent_buffer *)page->private; set_bit(EXTENT_BUFFER_IOERR, &eb->bflags); - eb->failed_mirror = failed_mirror; + eb->read_mirror = failed_mirror; if (test_and_clear_bit(EXTENT_BUFFER_READAHEAD, &eb->bflags)) btree_readahead_hook(root, eb, eb->start, -EIO); return -EIO; /* we fixed nothing */ diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 11eeb81..0c23e57 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -2304,7 +2304,7 @@ static void end_bio_extent_readpage(struct bio *bio, int err) u64 start; u64 end; int whole_page; - int failed_mirror; + int mirror; int ret; if (err) @@ -2343,20 +2343,18 @@ static void end_bio_extent_readpage(struct bio *bio, int err) } spin_unlock(&tree->lock); + mirror = (int)(unsigned long)bio->bi_bdev; if (uptodate && tree->ops && tree->ops->readpage_end_io_hook) { ret = tree->ops->readpage_end_io_hook(page, start, end, - state); + state, mirror); if (ret) uptodate = 0; else clean_io_failure(start, page); } - if (!uptodate) - failed_mirror = (int)(unsigned long)bio->bi_bdev; - if (!uptodate && tree->ops && tree->ops->readpage_io_failed_hook) { - ret = tree->ops->readpage_io_failed_hook(page, failed_mirror); + ret = tree->ops->readpage_io_failed_hook(page, mirror); if (!ret && !err && test_bit(BIO_UPTODATE, &bio->bi_flags)) uptodate = 1; @@ -2371,8 +2369,7 @@ static void end_bio_extent_readpage(struct bio *bio, int err) * can't handle the error it will return -EIO and we * remain responsible for that page. */ - ret = bio_readpage_error(bio, page, start, end, - failed_mirror, NULL); + ret = bio_readpage_error(bio, page, start, end, mirror, NULL); if (ret == 0) { uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); @@ -4465,7 +4462,7 @@ int read_extent_buffer_pages(struct extent_io_tree *tree, } clear_bit(EXTENT_BUFFER_IOERR, &eb->bflags); - eb->failed_mirror = 0; + eb->read_mirror = 0; atomic_set(&eb->io_pages, num_reads); for (i = start_i; i < num_pages; i++) { page = extent_buffer_page(eb, i); diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h index faf10eb..b516c3b 100644 --- a/fs/btrfs/extent_io.h +++ b/fs/btrfs/extent_io.h @@ -79,7 +79,7 @@ struct extent_io_ops { u64 start, u64 end, struct extent_state *state); int (*readpage_end_io_hook)(struct page *page, u64 start, u64 end, - struct extent_state *state); + struct extent_state *state, int mirror); int (*writepage_end_io_hook)(struct page *page, u64 start, u64 end, struct extent_state *state, int uptodate); void (*set_bit_hook)(struct inode *inode, struct extent_state *state, @@ -135,7 +135,7 @@ struct extent_buffer { spinlock_t refs_lock; atomic_t refs; atomic_t io_pages; - int failed_mirror; + int read_mirror; struct list_head leak_list; struct rcu_head rcu_head; pid_t lock_owner; diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 98ee5a5..d953f88 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1947,7 +1947,7 @@ static int btrfs_writepage_end_io_hook(struct page *page, u64 start, u64 end, * extent_io.c will try to find good copies for us. */ static int btrfs_readpage_end_io_hook(struct page *page, u64 start, u64 end, - struct extent_state *state) + struct extent_state *state, int mirror) { size_t offset = start - ((u64)page->index << PAGE_CACHE_SHIFT); struct inode *inode = page->mapping->host; -- cgit v0.10.2 From 253beebd5a255e07d6a8b65515491f33664e82a2 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 18 Apr 2012 09:59:03 +0300 Subject: Btrfs: double unlock bug in error handling The caller expects this function to return with the lock held and releases it immediately on error. Signed-off-by: Dan Carpenter diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 2b35f8d..a0bb9dc 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -2301,6 +2301,7 @@ static noinline int run_clustered_refs(struct btrfs_trans_handle *trans, if (ret) { printk(KERN_DEBUG "btrfs: run_delayed_extent_op returned %d\n", ret); + spin_lock(&delayed_refs->lock); return ret; } @@ -2331,6 +2332,7 @@ static noinline int run_clustered_refs(struct btrfs_trans_handle *trans, if (ret) { printk(KERN_DEBUG "btrfs: run_one_delayed_ref returned %d\n", ret); + spin_lock(&delayed_refs->lock); return ret; } -- cgit v0.10.2 From b9688bb8459b67e42327de6420edb405a9188775 Mon Sep 17 00:00:00 2001 From: Arne Jansen Date: Wed, 18 Apr 2012 10:27:16 +0200 Subject: btrfs: don't return EINTR It is basically a good thing if we are interruptible when waiting for free space, but the generality in which it is implemented currently leads to system calls being interruptible that are not documented this way. For example git can't handle interrupted unlink(), leading to corrupt repos under space pressure. Instead we raise the bar to only be interruptible by SIGKILL. Thanks to David Sterba for suggesting this. Signed-off-by: Arne Jansen diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index a0bb9dc..84497f8 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3771,13 +3771,10 @@ again: */ if (current->journal_info) return -EAGAIN; - ret = wait_event_interruptible(space_info->wait, - !space_info->flush); - /* Must have been interrupted, return */ - if (ret) { - printk(KERN_DEBUG "btrfs: %s returning -EINTR\n", __func__); + ret = wait_event_killable(space_info->wait, !space_info->flush); + /* Must have been killed, return */ + if (ret) return -EINTR; - } spin_lock(&space_info->lock); } -- cgit v0.10.2 From 99ba55ad696944b37d5557bc5b4816890854fdb9 Mon Sep 17 00:00:00 2001 From: Stefan Behrens Date: Mon, 19 Mar 2012 16:17:22 +0100 Subject: Btrfs: fix btrfs_ioctl_dev_info() crash on missing device When a filesystem is mounted with the degraded option, it is possible that some of the devices are not there. btrfs_ioctl_dev_info() crashs in this case because the device name is a NULL pointer. This ioctl was only used for scrub. Signed-off-by: Stefan Behrens diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 18cc23d..14f8e1f 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -2262,7 +2262,10 @@ static long btrfs_ioctl_dev_info(struct btrfs_root *root, void __user *arg) di_args->bytes_used = dev->bytes_used; di_args->total_bytes = dev->total_bytes; memcpy(di_args->uuid, dev->uuid, sizeof(di_args->uuid)); - strncpy(di_args->path, dev->name, sizeof(di_args->path)); + if (dev->name) + strncpy(di_args->path, dev->name, sizeof(di_args->path)); + else + di_args->path[0] = '\0'; out: if (ret == 0 && copy_to_user(arg, di_args, sizeof(*di_args))) -- cgit v0.10.2 From 5c84fc3c3914e9adfa6155a167c6c0c2709e6a62 Mon Sep 17 00:00:00 2001 From: Stefan Behrens Date: Fri, 30 Mar 2012 13:58:31 +0200 Subject: Btrfs: don't count CRC or header errors twice while scrubbing Each CRC or header error was counted twice, this is now fixed. Signed-off-by: Stefan Behrens diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c index 60f0e28..b679bf6 100644 --- a/fs/btrfs/scrub.c +++ b/fs/btrfs/scrub.c @@ -1258,12 +1258,6 @@ static int scrub_checksum_data(struct scrub_block *sblock) if (memcmp(csum, on_disk_csum, sdev->csum_size)) fail = 1; - if (fail) { - spin_lock(&sdev->stat_lock); - ++sdev->stat.csum_errors; - spin_unlock(&sdev->stat_lock); - } - return fail; } @@ -1336,15 +1330,6 @@ static int scrub_checksum_tree_block(struct scrub_block *sblock) if (memcmp(calculated_csum, on_disk_csum, sdev->csum_size)) ++crc_fail; - if (crc_fail || fail) { - spin_lock(&sdev->stat_lock); - if (crc_fail) - ++sdev->stat.csum_errors; - if (fail) - ++sdev->stat.verify_errors; - spin_unlock(&sdev->stat_lock); - } - return fail || crc_fail; } -- cgit v0.10.2 From 25cd999e1a685dab65292afbe9fa24d790d8a859 Mon Sep 17 00:00:00 2001 From: Stefan Behrens Date: Fri, 30 Mar 2012 13:58:32 +0200 Subject: Btrfs: fix that check_int_data mount option was ignored The bitfield member mount_opt was too small by one bit to hold the mount option that enabled to include data extents in the integrity checker. Since the same issue happened when the BTRFS_MOUNT_PANIC_ON_FATAL_ERROR option was added (git rebase silently merges so that the increase of the size of the bitfield member is lost), the bit limit was removed entirely. Signed-off-by: Stefan Behrens diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 5b8ef8e..ec42a24 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -1078,7 +1078,7 @@ struct btrfs_fs_info { * is required instead of the faster short fsync log commits */ u64 last_trans_log_full_commit; - unsigned long mount_opt:21; + unsigned long mount_opt; unsigned long compress_type:4; u64 max_inline; u64 alloc_start; -- cgit v0.10.2 From 00250ec90963b7ef6678438888f3244985ecde14 Mon Sep 17 00:00:00 2001 From: Andre Przywara Date: Mon, 9 Apr 2012 18:16:34 -0400 Subject: hwmon: fam15h_power: fix bogus values with current BIOSes Newer BKDG[1] versions recommend a different initialization value for the running average range register in the northbridge. This improves the power reading by avoiding counter saturations resulting in bogus values for anything below about 80% of TDP power consumption. Updated BIOSes will have this new value set up from the beginning, but meanwhile we correct this value ourselves. This needs to be done on all northbridges, even on those where the driver itself does not register at. This fixes the driver on all current machines to provide proper values for idle load. [1] http://support.amd.com/us/Processor_TechDocs/42301_15h_Mod_00h-0Fh_BKDG.pdf Chapter 3.8: D18F5xE0 Processor TDP Running Average (p. 452) Signed-off-by: Andre Przywara Acked-by: Jean Delvare [guenter.roeck@ericsson.com: Removed unnecessary return statement] Signed-off-by: Guenter Roeck Cc: stable@vger.kernel.org # 3.0+ diff --git a/drivers/hwmon/fam15h_power.c b/drivers/hwmon/fam15h_power.c index b7494af..37a8fc9 100644 --- a/drivers/hwmon/fam15h_power.c +++ b/drivers/hwmon/fam15h_power.c @@ -122,6 +122,38 @@ static bool __devinit fam15h_power_is_internal_node0(struct pci_dev *f4) return true; } +/* + * Newer BKDG versions have an updated recommendation on how to properly + * initialize the running average range (was: 0xE, now: 0x9). This avoids + * counter saturations resulting in bogus power readings. + * We correct this value ourselves to cope with older BIOSes. + */ +static void __devinit tweak_runavg_range(struct pci_dev *pdev) +{ + u32 val; + const struct pci_device_id affected_device = { + PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_NB_F4) }; + + /* + * let this quirk apply only to the current version of the + * northbridge, since future versions may change the behavior + */ + if (!pci_match_id(&affected_device, pdev)) + return; + + pci_bus_read_config_dword(pdev->bus, + PCI_DEVFN(PCI_SLOT(pdev->devfn), 5), + REG_TDP_RUNNING_AVERAGE, &val); + if ((val & 0xf) != 0xe) + return; + + val &= ~0xf; + val |= 0x9; + pci_bus_write_config_dword(pdev->bus, + PCI_DEVFN(PCI_SLOT(pdev->devfn), 5), + REG_TDP_RUNNING_AVERAGE, val); +} + static void __devinit fam15h_power_init_data(struct pci_dev *f4, struct fam15h_power_data *data) { @@ -155,6 +187,13 @@ static int __devinit fam15h_power_probe(struct pci_dev *pdev, struct device *dev; int err; + /* + * though we ignore every other northbridge, we still have to + * do the tweaking on _each_ node in MCM processors as the counters + * are working hand-in-hand + */ + tweak_runavg_range(pdev); + if (!fam15h_power_is_internal_node0(pdev)) { err = -ENODEV; goto exit; -- cgit v0.10.2 From 1196573fe493aeeb826468157313ee84ffbc59f3 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Mon, 9 Apr 2012 13:53:00 -0400 Subject: hwmon: (ads1015) Fix build warning The following build warning is seen in some configurations. drivers/hwmon/ads1015.c: In function 'show_in': drivers/hwmon/ads1015.c:129: warning: 'in' may be used uninitialized in this function Fix by separating the register read function from the code converting the result into mV. Signed-off-by: Guenter Roeck Cc: Dirk Eibach Reviewed-by: Robert Coulson diff --git a/drivers/hwmon/ads1015.c b/drivers/hwmon/ads1015.c index 7765e4f..1958f03 100644 --- a/drivers/hwmon/ads1015.c +++ b/drivers/hwmon/ads1015.c @@ -59,14 +59,11 @@ struct ads1015_data { struct ads1015_channel_data channel_data[ADS1015_CHANNELS]; }; -static int ads1015_read_value(struct i2c_client *client, unsigned int channel, - int *value) +static int ads1015_read_adc(struct i2c_client *client, unsigned int channel) { u16 config; - s16 conversion; struct ads1015_data *data = i2c_get_clientdata(client); unsigned int pga = data->channel_data[channel].pga; - int fullscale; unsigned int data_rate = data->channel_data[channel].data_rate; unsigned int conversion_time_ms; int res; @@ -78,7 +75,6 @@ static int ads1015_read_value(struct i2c_client *client, unsigned int channel, if (res < 0) goto err_unlock; config = res; - fullscale = fullscale_table[pga]; conversion_time_ms = DIV_ROUND_UP(1000, data_rate_table[data_rate]); /* setup and start single conversion */ @@ -105,33 +101,36 @@ static int ads1015_read_value(struct i2c_client *client, unsigned int channel, } res = i2c_smbus_read_word_swapped(client, ADS1015_CONVERSION); - if (res < 0) - goto err_unlock; - conversion = res; - - mutex_unlock(&data->update_lock); - - *value = DIV_ROUND_CLOSEST(conversion * fullscale, 0x7ff0); - - return 0; err_unlock: mutex_unlock(&data->update_lock); return res; } +static int ads1015_reg_to_mv(struct i2c_client *client, unsigned int channel, + s16 reg) +{ + struct ads1015_data *data = i2c_get_clientdata(client); + unsigned int pga = data->channel_data[channel].pga; + int fullscale = fullscale_table[pga]; + + return DIV_ROUND_CLOSEST(reg * fullscale, 0x7ff0); +} + /* sysfs callback function */ static ssize_t show_in(struct device *dev, struct device_attribute *da, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(da); struct i2c_client *client = to_i2c_client(dev); - int in; int res; + int index = attr->index; - res = ads1015_read_value(client, attr->index, &in); + res = ads1015_read_adc(client, index); + if (res < 0) + return res; - return (res < 0) ? res : sprintf(buf, "%d\n", in); + return sprintf(buf, "%d\n", ads1015_reg_to_mv(client, index, res)); } static const struct sensor_device_attribute ads1015_in[] = { -- cgit v0.10.2 From 0c8d32c27f5cf6e14ca14b4758d1e994eebd50fd Mon Sep 17 00:00:00 2001 From: Lin Ming Date: Wed, 18 Apr 2012 09:29:47 +0800 Subject: libata: forbid port runtime pm by default, fixing regression Forbid port runtime pm by default because it has known hotplug issue. User can allow it by, for example echo auto > /sys/devices/pci0000:00/0000:00:1f.2/ata2/power/control Signed-off-by: Lin Ming Signed-off-by: Jeff Garzik diff --git a/drivers/ata/libata-transport.c b/drivers/ata/libata-transport.c index 74aaee3..c341904 100644 --- a/drivers/ata/libata-transport.c +++ b/drivers/ata/libata-transport.c @@ -294,6 +294,7 @@ int ata_tport_add(struct device *parent, device_enable_async_suspend(dev); pm_runtime_set_active(dev); pm_runtime_enable(dev); + pm_runtime_forbid(dev); transport_add_device(dev); transport_configure_device(dev); -- cgit v0.10.2 From e88aa7bbbe3046a125ea1936b16bb921cc9c6349 Mon Sep 17 00:00:00 2001 From: David Miller Date: Thu, 12 Apr 2012 14:37:30 -0400 Subject: Fix modpost failures in fedora 17 The symbol table on x86-64 starts to have entries that have names like: _GLOBAL__sub_I_65535_0___mod_x86cpu_device_table They are of type STT_FUNCTION and this one had a length of 18. This matched the device ID validation logic and it barfed because the length did not meet the device type's criteria. -------------------- FATAL: arch/x86/crypto/aesni-intel: sizeof(struct x86cpu_device_id)=16 is not a modulo of the size of section __mod_x86cpu_device_table=18. Fix definition of struct x86cpu_device_id in mod_devicetable.h -------------------- These are some kind of compiler tool internal stuff being emitted and not something we want to inspect in modpost's device ID table validation code. So skip the symbol if it is not of type STT_OBJECT. Signed-off-by: David S. Miller Acked-by: Sam Ravnborg Signed-off-by: Michal Marek diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c index 8e730cc..44ddaa5 100644 --- a/scripts/mod/file2alias.c +++ b/scripts/mod/file2alias.c @@ -1100,6 +1100,10 @@ void handle_moddevtable(struct module *mod, struct elf_info *info, if (!sym->st_shndx || get_secindex(info, sym) >= info->num_sections) return; + /* We're looking for an object */ + if (ELF_ST_TYPE(sym->st_info) != STT_OBJECT) + return; + /* All our symbols are of form __mod_XXX_device_table. */ name = strstr(symname, "__mod_"); if (!name) -- cgit v0.10.2 From a71e23d9925517e609dfcb72b5874f33cdb0d2ad Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Mon, 16 Apr 2012 21:55:04 -0400 Subject: xen/blkback: Fix warning error. drivers/block/xen-blkback/xenbus.c: In function 'xen_blkbk_discard': drivers/block/xen-blkback/xenbus.c:419:4: warning: passing argument 1 of 'dev_warn' makes pointer from integer without a cast +[enabled by default] include/linux/device.h:894:5: note: expected 'const struct device *' but argument is of type 'long int' It is unclear how that mistake made it in. It surely is wrong. Acked-by: Jens Axboe Reported-by: Stephen Rothwell Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index 89860f3..4f66171 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -416,7 +416,7 @@ static void xen_blkbk_discard(struct xenbus_transaction xbt, struct backend_info "discard-secure", "%d", blkif->vbd.discard_secure); if (err) { - dev_warn(dev-dev, "writing discard-secure (%d)", err); + dev_warn(&dev->dev, "writing discard-secure (%d)", err); return; } } -- cgit v0.10.2 From 2fbe2bf1fd37f9d99950bd8d8093623cf22cf08b Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Wed, 18 Apr 2012 11:33:00 -0400 Subject: EHCI: always clear the STS_FLR status bit This patch (as1544) fixes a problem affecting some EHCI controllers. They can generate interrupts whenever the STS_FLR status bit is turned on, even though that bit is masked out in the Interrupt Enable register. Since the driver doesn't use STS_FLR anyway, the patch changes the interrupt routine to clear that bit whenever it is set, rather than leaving it alone. Signed-off-by: Alan Stern Reported-and-tested-by: Tomoya MORINAGA Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 95ca07a..4a3bc5b 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -858,8 +858,13 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) goto dead; } + /* + * We don't use STS_FLR, but some controllers don't like it to + * remain on, so mask it out along with the other status bits. + */ + masked_status = status & (INTR_MASK | STS_FLR); + /* Shared IRQ? */ - masked_status = status & INTR_MASK; if (!masked_status || unlikely(ehci->rh_state == EHCI_RH_HALTED)) { spin_unlock(&ehci->lock); return IRQ_NONE; -- cgit v0.10.2 From 0db7bd8ca0033c1530bcefcbd49002364dba908a Mon Sep 17 00:00:00 2001 From: Lasse Collin Date: Wed, 18 Apr 2012 19:55:44 +0300 Subject: xz: Enable BCJ filters on SPARC and 32-bit x86 The BCJ filters were meant to be enabled already on these archs, but the xz_wrap.sh script was buggy. Enabling the filters should give smaller kernel images. xz_wrap.sh will now use $SRCARCH instead of $ARCH to detect the architecture. That way it doesn't need to care about the subarchs (like i386 vs. x86_64) since the BCJ filters don't care either. Signed-off-by: Lasse Collin Acked-by: Jan Beulich Acked-by: H. Peter Anvin Signed-off-by: Linus Torvalds diff --git a/scripts/xz_wrap.sh b/scripts/xz_wrap.sh index 17a5798..7a2d372 100644 --- a/scripts/xz_wrap.sh +++ b/scripts/xz_wrap.sh @@ -12,8 +12,8 @@ BCJ= LZMA2OPTS= -case $ARCH in - x86|x86_64) BCJ=--x86 ;; +case $SRCARCH in + x86) BCJ=--x86 ;; powerpc) BCJ=--powerpc ;; ia64) BCJ=--ia64; LZMA2OPTS=pb=4 ;; arm) BCJ=--arm ;; -- cgit v0.10.2 From 9426cd05682745d1024dbabdec5631309bd2f480 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 16 Apr 2012 15:28:28 +0200 Subject: uwb: fix use of del_timer_sync() in interrupt del_timer_sync() cannot be used in interrupt. Replace it with del_timer() and a flag Signed-off-by: Oliver Neukum Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/uwb/neh.c b/drivers/uwb/neh.c index a269937..8cb71bb 100644 --- a/drivers/uwb/neh.c +++ b/drivers/uwb/neh.c @@ -107,6 +107,7 @@ struct uwb_rc_neh { u8 evt_type; __le16 evt; u8 context; + u8 completed; uwb_rc_cmd_cb_f cb; void *arg; @@ -409,6 +410,7 @@ static void uwb_rc_neh_grok_event(struct uwb_rc *rc, struct uwb_rceb *rceb, size struct device *dev = &rc->uwb_dev.dev; struct uwb_rc_neh *neh; struct uwb_rceb *notif; + unsigned long flags; if (rceb->bEventContext == 0) { notif = kmalloc(size, GFP_ATOMIC); @@ -422,7 +424,11 @@ static void uwb_rc_neh_grok_event(struct uwb_rc *rc, struct uwb_rceb *rceb, size } else { neh = uwb_rc_neh_lookup(rc, rceb); if (neh) { - del_timer_sync(&neh->timer); + spin_lock_irqsave(&rc->neh_lock, flags); + /* to guard against a timeout */ + neh->completed = 1; + del_timer(&neh->timer); + spin_unlock_irqrestore(&rc->neh_lock, flags); uwb_rc_neh_cb(neh, rceb, size); } else dev_warn(dev, "event 0x%02x/%04x/%02x (%zu bytes): nobody cared\n", @@ -568,6 +574,10 @@ static void uwb_rc_neh_timer(unsigned long arg) unsigned long flags; spin_lock_irqsave(&rc->neh_lock, flags); + if (neh->completed) { + spin_unlock_irqrestore(&rc->neh_lock, flags); + return; + } if (neh->context) __uwb_rc_neh_rm(rc, neh); else -- cgit v0.10.2 From 5bd7b419ef2eb4989b207753e088c3437159618a Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Wed, 18 Apr 2012 10:05:55 +0200 Subject: uwb: fix error handling Fatal errors such as a device disconnect must not trigger error handling. The error returns must be checked. Signed-off-by: Oliver Neukum Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/uwb/hwa-rc.c b/drivers/uwb/hwa-rc.c index 66797e9..810c90a 100644 --- a/drivers/uwb/hwa-rc.c +++ b/drivers/uwb/hwa-rc.c @@ -645,7 +645,8 @@ void hwarc_neep_cb(struct urb *urb) dev_err(dev, "NEEP: URB error %d\n", urb->status); } result = usb_submit_urb(urb, GFP_ATOMIC); - if (result < 0) { + if (result < 0 && result != -ENODEV && result != -EPERM) { + /* ignoring unrecoverable errors */ dev_err(dev, "NEEP: Can't resubmit URB (%d) resetting device\n", result); goto error; -- cgit v0.10.2 From 22b4a4f22da4b39c6f7f679fd35f3d35c91bf851 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 18 Apr 2012 10:14:23 +0000 Subject: tcp: fix retransmit of partially acked frames Alexander Beregalov reported skb_over_panic errors and provided stack trace. I occurs commit a21d45726aca (tcp: avoid order-1 allocations on wifi and tx path) added a regression, when a retransmit is done after a partial ACK. tcp_retransmit_skb() tries to aggregate several frames if the first one has enough available room to hold the following ones payload. This is controlled by /proc/sys/net/ipv4/tcp_retrans_collapse tunable (default : enabled) Problem is we must make sure _pskb_trim_head() doesnt fool skb_availroom() when pulling some bytes from skb (this pull is done when receiver ACK part of the frame). Reported-by: Alexander Beregalov Cc: Marc MERLIN Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 376b2cf..7ac6423 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -1096,6 +1096,7 @@ static void __pskb_trim_head(struct sk_buff *skb, int len) eat = min_t(int, len, skb_headlen(skb)); if (eat) { __skb_pull(skb, eat); + skb->avail_size -= eat; len -= eat; if (!len) return; -- cgit v0.10.2 From f941f6922533316556d4dc6eee9c19d4a832c560 Mon Sep 17 00:00:00 2001 From: Anatolij Gustschin Date: Tue, 10 Apr 2012 10:48:11 +0200 Subject: USB: ehci-fsl: Fix kernel crash on mpc5121e Since commit 28c56ea1431421dec51b7b229369e991481453df (powerpc/usb: fix bug of kernel hang when initializing usb) the kernel crashes on mpc5121e. mpc5121e doesn't have system interface registers, accessing this register address space cause the machine check exception and a kernel crash: ... [ 1.294596] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 1.316491] fsl-ehci fsl-ehci.0: Freescale On-Chip EHCI Host Controller [ 1.337334] fsl-ehci fsl-ehci.0: new USB bus registered, assigned bus number 1 [ 1.358548] Machine check in kernel mode. [ 1.375917] Caused by (from SRR1=49030): Transfer error ack signal [ 1.395505] Oops: Machine check, sig: 7 [#1] [ 1.413113] MPC5121 ADS [ 1.428718] Modules linked in: [ 1.444841] NIP: c026efc4 LR: c0278b50 CTR: 00000000 [ 1.463342] REGS: df837ba0 TRAP: 0200 Not tainted (3.3.0-08839-gb5174fa) [ 1.484083] MSR: 00049030 CR: 42042022 XER: 20000000 [ 1.504099] TASK = df834000[1] 'swapper' THREAD: df836000 [ 1.509667] GPR00: 1c000000 df837c50 df834000 df9d74e0 00000003 00000010 00000000 00000000 [ 1.531650] GPR08: 00000020 00000000 c037cdd8 e1088000 22042028 1001a69c 00000000 00000000 [ 1.553762] GPR16: 1ffbce70 00000000 1fef5b28 1fef3e08 00000000 00000000 1ffcbc7c c045b264 [ 1.575824] GPR24: 0000008b 00000002 c04a7dd0 e1088000 df33c960 df9d74e0 00000000 df9d7400 [ 1.612295] NIP [c026efc4] ehci_fsl_setup_phy+0x110/0x124 [ 1.632454] LR [c0278b50] ehci_fsl_setup+0x29c/0x304 [ 1.652065] Call Trace: [ 1.668923] [df837c50] [c0278a40] ehci_fsl_setup+0x18c/0x304 (unreliable) [ 1.690332] [df837c70] [c025cba4] usb_add_hcd+0x1f0/0x66c [ 1.710377] [df837cb0] [c0277ab8] ehci_fsl_drv_probe+0x180/0x308 [ 1.731322] [df837ce0] [c01fc7a8] platform_drv_probe+0x20/0x30 [ 1.752202] [df837cf0] [c01fb0ac] driver_probe_device+0x8c/0x214 [ 1.773491] [df837d10] [c01f956c] bus_for_each_drv+0x6c/0xa8 [ 1.794279] [df837d40] [c01fafdc] device_attach+0xb4/0xd8 [ 1.814574] [df837d60] [c01fa44c] bus_probe_device+0xa4/0xb4 [ 1.835343] [df837d80] [c01f87a8] device_add+0x52c/0x5dc [ 1.855462] [df837dd0] [c01fcd58] platform_device_add+0x124/0x1d0 [ 1.876558] [df837df0] [c036dcec] fsl_usb2_device_register+0xa0/0xd4 [ 1.897512] [df837e10] [c036df28] fsl_usb2_mph_dr_of_probe+0x208/0x264 [ 1.918253] [df837e90] [c01fc7a8] platform_drv_probe+0x20/0x30 [ 1.938300] [df837ea0] [c01fb0ac] driver_probe_device+0x8c/0x214 [ 1.958511] [df837ec0] [c01fb2f0] __driver_attach+0xbc/0xc0 [ 1.978088] [df837ee0] [c01f9608] bus_for_each_dev+0x60/0x9c [ 1.997589] [df837f10] [c01fab88] driver_attach+0x24/0x34 [ 2.016757] [df837f20] [c01fa744] bus_add_driver+0x1ac/0x274 [ 2.036339] [df837f50] [c01fb898] driver_register+0x88/0x150 [ 2.056052] [df837f70] [c01fcabc] platform_driver_register+0x68/0x78 [ 2.076650] [df837f80] [c0446500] fsl_usb2_mph_dr_driver_init+0x18/0x28 [ 2.097734] [df837f90] [c0003988] do_one_initcall+0x148/0x1b0 [ 2.117934] [df837fc0] [c042d89c] kernel_init+0xfc/0x190 [ 2.137667] [df837ff0] [c000d2c4] kernel_thread+0x4c/0x68 [ 2.157240] Instruction dump: [ 2.174119] 90050004 4e800020 2f840003 419e0014 2f840004 409eff64 6400c000 4bffff5c [ 2.196000] 64001000 7c0004ac 812b0500 0c090000 <4c00012c> 61290200 7c0004ac 912b0500 [ 2.218100] ---[ end trace 21659aedb84ad816 ]--- [ 2.237089] [ 3.232940] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000007 [ 3.232954] [ 3.271575] Rebooting in 1 seconds.. Check pdata->have_sysif_regs flag before accessing system interface registers. Signed-off-by: Anatolij Gustschin Cc: Shengzhou Liu Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index 3e73451..d0a84bd 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -218,6 +218,9 @@ static void ehci_fsl_setup_phy(struct ehci_hcd *ehci, u32 portsc; struct usb_hcd *hcd = ehci_to_hcd(ehci); void __iomem *non_ehci = hcd->regs; + struct fsl_usb2_platform_data *pdata; + + pdata = hcd->self.controller->platform_data; portsc = ehci_readl(ehci, &ehci->regs->port_status[port_offset]); portsc &= ~(PORT_PTS_MSK | PORT_PTS_PTW); @@ -234,7 +237,9 @@ static void ehci_fsl_setup_phy(struct ehci_hcd *ehci, /* fall through */ case FSL_USB2_PHY_UTMI: /* enable UTMI PHY */ - setbits32(non_ehci + FSL_SOC_USB_CTRL, CTRL_UTMI_PHY_EN); + if (pdata->have_sysif_regs) + setbits32(non_ehci + FSL_SOC_USB_CTRL, + CTRL_UTMI_PHY_EN); portsc |= PORT_PTS_UTMI; break; case FSL_USB2_PHY_NONE: -- cgit v0.10.2 From f4a728d09a96d6a83d9c3f39035b1aa7726892ea Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sun, 25 Mar 2012 21:08:32 +0200 Subject: drivers/usb/misc/usbtest.c: add kfrees Free the two previously allocated buffers before exiting the function in an error case. Signed-off-by: Julia Lawall Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index cac67de..9dcb68f 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -2277,6 +2277,8 @@ usbtest_probe(struct usb_interface *intf, const struct usb_device_id *id) if (status < 0) { WARNING(dev, "couldn't get endpoints, %d\n", status); + kfree(dev->buf); + kfree(dev); return status; } /* may find bulk or ISO pipes */ -- cgit v0.10.2 From 523fc5c14f6cad283e5a266eba0e343aed6e73d5 Mon Sep 17 00:00:00 2001 From: Tomoki Sekiyama Date: Fri, 30 Mar 2012 08:51:28 +0900 Subject: USB: yurex: Remove allocation of coherent buffer for setup-packet buffer Removes allocation of coherent buffer for the control-request setup-packet buffer from the yurex driver. Using coherent buffers for setup-packet is obsolete and does not work with some USB host implementations. Signed-off-by: Tomoki Sekiyama Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c index 897edda..a4a76fc 100644 --- a/drivers/usb/misc/yurex.c +++ b/drivers/usb/misc/yurex.c @@ -99,9 +99,7 @@ static void yurex_delete(struct kref *kref) usb_put_dev(dev->udev); if (dev->cntl_urb) { usb_kill_urb(dev->cntl_urb); - if (dev->cntl_req) - usb_free_coherent(dev->udev, YUREX_BUF_SIZE, - dev->cntl_req, dev->cntl_urb->setup_dma); + kfree(dev->cntl_req); if (dev->cntl_buffer) usb_free_coherent(dev->udev, YUREX_BUF_SIZE, dev->cntl_buffer, dev->cntl_urb->transfer_dma); @@ -234,9 +232,7 @@ static int yurex_probe(struct usb_interface *interface, const struct usb_device_ } /* allocate buffer for control req */ - dev->cntl_req = usb_alloc_coherent(dev->udev, YUREX_BUF_SIZE, - GFP_KERNEL, - &dev->cntl_urb->setup_dma); + dev->cntl_req = kmalloc(YUREX_BUF_SIZE, GFP_KERNEL); if (!dev->cntl_req) { err("Could not allocate cntl_req"); goto error; -- cgit v0.10.2 From 532f17b5d59bf0deb6f1ff9bc1fb27d5b5011c09 Mon Sep 17 00:00:00 2001 From: Tomoki Sekiyama Date: Fri, 30 Mar 2012 08:51:36 +0900 Subject: USB: yurex: Fix missing URB_NO_TRANSFER_DMA_MAP flag in urb Current probing code is setting URB_NO_TRANSFER_DMA_MAP flag into a wrong urb structure, and this causes BUG_ON with some USB host implementations. This patch fixes the issue. Signed-off-by: Tomoki Sekiyama Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c index a4a76fc..7020146 100644 --- a/drivers/usb/misc/yurex.c +++ b/drivers/usb/misc/yurex.c @@ -282,7 +282,7 @@ static int yurex_probe(struct usb_interface *interface, const struct usb_device_ usb_rcvintpipe(dev->udev, dev->int_in_endpointAddr), dev->int_buffer, YUREX_BUF_SIZE, yurex_interrupt, dev, 1); - dev->cntl_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + dev->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; if (usb_submit_urb(dev->urb, GFP_KERNEL)) { retval = -EIO; err("Could not submitting URB"); -- cgit v0.10.2 From 8034761c219ce545a9f4d3b23cfda47a0027cc8c Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Wed, 18 Apr 2012 14:43:40 -0600 Subject: USB: ehci-tegra: don't call set_irq_flags(IRQF_VALID) This call is not needed; the IRQ controller should (and does) set up interrupts correctly. set_irq_flags() isn't exported to modules, to this also fixes compilation of ehci-tegra.c as a module. Signed-off-by: Stephen Warren Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index 73544bd..8618336 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -731,7 +731,6 @@ static int tegra_ehci_probe(struct platform_device *pdev) err = -ENODEV; goto fail; } - set_irq_flags(irq, IRQF_VALID); #ifdef CONFIG_USB_OTG_UTILS if (pdata->operating_mode == TEGRA_USB_OTG) { -- cgit v0.10.2 From 1bc68a9e80a7b1ab8dbf1a97e43c5d6a99070bb3 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Mon, 16 Apr 2012 00:52:51 -0400 Subject: powerpc: fix system.h fallout in sysdev/scom.c [chroma_defconfig] The following shows up in chroma_defconfig: CC arch/powerpc/sysdev/scom.o arch/powerpc/sysdev/scom.c: In function 'scom_debug_init': arch/powerpc/sysdev/scom.c:182:36: error: 'powerpc_debugfs_root' undeclared (first use in this function) arch/powerpc/sysdev/scom.c:182:36: note: each undeclared identifier is reported only once for each function it appears in make[2]: *** [arch/powerpc/sysdev/scom.o] Error 1 make[1]: *** [arch/powerpc/sysdev/scom.o] Error 2 A bisect leads to commit 9ffc93f203c18a70623f21950f1dd473c9ec48cd "Remove all #inclusions of asm/system.h" Add the debug header which contains powerpc_debugfs_root. Acked-by: David Howells Signed-off-by: Paul Gortmaker diff --git a/arch/powerpc/sysdev/scom.c b/arch/powerpc/sysdev/scom.c index 49a3ece..702256a 100644 --- a/arch/powerpc/sysdev/scom.c +++ b/arch/powerpc/sysdev/scom.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include -- cgit v0.10.2 From 7a6fbc9a887193a1e9f8658703881c528040afbc Mon Sep 17 00:00:00 2001 From: Alexander Shiyan Date: Tue, 27 Mar 2012 12:22:49 +0400 Subject: ARM: clps711x: serial driver hungs are a result of call disable_irq within ISR Since 2.6.30-rc1 clps711x serial driver hungs system. This is a result of call disable_irq from ISR. synchronize_irq waits for end of interrupt and goes to infinite loop. This patch fix this problem. Signed-off-by: Alexander Shiyan Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/tty/serial/clps711x.c b/drivers/tty/serial/clps711x.c index e6c3dbd..836fe273 100644 --- a/drivers/tty/serial/clps711x.c +++ b/drivers/tty/serial/clps711x.c @@ -154,10 +154,9 @@ static irqreturn_t clps711xuart_int_tx(int irq, void *dev_id) port->x_char = 0; return IRQ_HANDLED; } - if (uart_circ_empty(xmit) || uart_tx_stopped(port)) { - clps711xuart_stop_tx(port); - return IRQ_HANDLED; - } + + if (uart_circ_empty(xmit) || uart_tx_stopped(port)) + goto disable_tx_irq; count = port->fifosize >> 1; do { @@ -171,8 +170,11 @@ static irqreturn_t clps711xuart_int_tx(int irq, void *dev_id) if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) uart_write_wakeup(port); - if (uart_circ_empty(xmit)) - clps711xuart_stop_tx(port); + if (uart_circ_empty(xmit)) { + disable_tx_irq: + disable_irq_nosync(TX_IRQ(port)); + tx_enabled(port) = 0; + } return IRQ_HANDLED; } -- cgit v0.10.2 From af6d17cdc8c89aeb3101f0d27cd32fc0592b40b2 Mon Sep 17 00:00:00 2001 From: Tomoya MORINAGA Date: Thu, 12 Apr 2012 10:47:50 +0900 Subject: pch_uart: Fix dma channel unallocated issue This driver anticipates pch_uart_verify_port() is not called during installation. However, actually pch_uart_verify_port() is called during installation. As a result, memory access violation occurs like below. 0. initial value: use_dma=0 1. starup() - dma channel is not allocated because use_dma=0 2. pch_uart_verify_port() - Set use_dma=1 3. UART processing acts DMA mode because use_dma=1 - memory access violation occurs! This patch fixes the issue. Solution: Whenever pch_uart_verify_port() is called and then dma channel is not allocated, the channel should be allocated. Signed-off-by: Tomoya MORINAGA Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c index bbbec4a..c2816f4 100644 --- a/drivers/tty/serial/pch_uart.c +++ b/drivers/tty/serial/pch_uart.c @@ -1447,9 +1447,11 @@ static int pch_uart_verify_port(struct uart_port *port, __func__); return -EOPNOTSUPP; #endif - priv->use_dma = 1; priv->use_dma_flag = 1; dev_info(priv->port.dev, "PCH UART : Use DMA Mode\n"); + if (!priv->use_dma) + pch_request_dma(port); + priv->use_dma = 1; } return 0; -- cgit v0.10.2 From 2225fd56049643c1a7d645c0ce9d499d43c7974e Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Wed, 18 Apr 2012 15:03:04 +0300 Subject: KVM: VMX: Fix kvm_set_shared_msr() called in preemptible context kvm_set_shared_msr() may not be called in preemptible context, but vmx_set_msr() does so: BUG: using smp_processor_id() in preemptible [00000000] code: qemu-kvm/22713 caller is kvm_set_shared_msr+0x32/0xa0 [kvm] Pid: 22713, comm: qemu-kvm Not tainted 3.4.0-rc3+ #39 Call Trace: [] debug_smp_processor_id+0xe2/0x100 [] kvm_set_shared_msr+0x32/0xa0 [kvm] [] vmx_set_msr+0x28b/0x2d0 [kvm_intel] ... Making kvm_set_shared_msr() work in preemptible is cleaner, but it's used in the fast path. Making two variants is overkill, so this patch just disables preemption around the call. Reported-by: Dave Jones Signed-off-by: Avi Kivity Signed-off-by: Marcelo Tosatti diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index ad85adf..4ff0ab9 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -2210,9 +2210,12 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data) msr = find_msr_entry(vmx, msr_index); if (msr) { msr->data = data; - if (msr - vmx->guest_msrs < vmx->save_nmsrs) + if (msr - vmx->guest_msrs < vmx->save_nmsrs) { + preempt_disable(); kvm_set_shared_msr(msr->index, msr->data, msr->mask); + preempt_enable(); + } break; } ret = kvm_set_msr_common(vcpu, msr_index, data); -- cgit v0.10.2 From 51b79bee627d526199b2f6a6bef8ee0c0739b6d1 Mon Sep 17 00:00:00 2001 From: Jonghwan Choi Date: Wed, 18 Apr 2012 17:23:04 -0400 Subject: security: fix compile error in commoncap.c Add missing "personality.h" security/commoncap.c: In function 'cap_bprm_set_creds': security/commoncap.c:510: error: 'PER_CLEAR_ON_SETID' undeclared (first use in this function) security/commoncap.c:510: error: (Each undeclared identifier is reported only once security/commoncap.c:510: error: for each function it appears in.) Signed-off-by: Jonghwan Choi Acked-by: Serge Hallyn Signed-off-by: James Morris diff --git a/security/commoncap.c b/security/commoncap.c index 0ecf4ba..71a166a 100644 --- a/security/commoncap.c +++ b/security/commoncap.c @@ -29,6 +29,7 @@ #include #include #include +#include /* * If a non-root user executes a setuid-root binary in -- cgit v0.10.2 From 21a1416a1c945c5aeaeaf791b63c64926018eb77 Mon Sep 17 00:00:00 2001 From: Alex Williamson Date: Tue, 17 Apr 2012 21:46:44 -0600 Subject: KVM: lock slots_lock around device assignment As pointed out by Jason Baron, when assigning a device to a guest we first set the iommu domain pointer, which enables mapping and unmapping of memory slots to the iommu. This leaves a window where this path is enabled, but we haven't synchronized the iommu mappings to the existing memory slots. Thus a slot being removed at that point could send us down unexpected code paths removing non-existent pinnings and iommu mappings. Take the slots_lock around creating the iommu domain and initial mappings as well as around iommu teardown to avoid this race. Signed-off-by: Alex Williamson Signed-off-by: Marcelo Tosatti diff --git a/virt/kvm/iommu.c b/virt/kvm/iommu.c index fec1723..e9fff98 100644 --- a/virt/kvm/iommu.c +++ b/virt/kvm/iommu.c @@ -240,9 +240,13 @@ int kvm_iommu_map_guest(struct kvm *kvm) return -ENODEV; } + mutex_lock(&kvm->slots_lock); + kvm->arch.iommu_domain = iommu_domain_alloc(&pci_bus_type); - if (!kvm->arch.iommu_domain) - return -ENOMEM; + if (!kvm->arch.iommu_domain) { + r = -ENOMEM; + goto out_unlock; + } if (!allow_unsafe_assigned_interrupts && !iommu_domain_has_cap(kvm->arch.iommu_domain, @@ -253,17 +257,16 @@ int kvm_iommu_map_guest(struct kvm *kvm) " module option.\n", __func__); iommu_domain_free(kvm->arch.iommu_domain); kvm->arch.iommu_domain = NULL; - return -EPERM; + r = -EPERM; + goto out_unlock; } r = kvm_iommu_map_memslots(kvm); if (r) - goto out_unmap; - - return 0; + kvm_iommu_unmap_memslots(kvm); -out_unmap: - kvm_iommu_unmap_memslots(kvm); +out_unlock: + mutex_unlock(&kvm->slots_lock); return r; } @@ -340,7 +343,11 @@ int kvm_iommu_unmap_guest(struct kvm *kvm) if (!domain) return 0; + mutex_lock(&kvm->slots_lock); kvm_iommu_unmap_memslots(kvm); + kvm->arch.iommu_domain = NULL; + mutex_unlock(&kvm->slots_lock); + iommu_domain_free(domain); return 0; } -- cgit v0.10.2 From 888073d41680e8244232f3d850e0424a4e9de60f Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Mon, 16 Apr 2012 15:38:28 -0400 Subject: ARM: bcmring: fix UART declarations This error appeared in the bcmring_defconfig build: CC arch/arm/mach-bcmring/core.o arch/arm/mach-bcmring/core.c:55: error: macro "AMBA_APB_DEVICE" requires 6 arguments, but only 5 given arch/arm/mach-bcmring/core.c:55: warning: type defaults to 'int' in declaration of 'AMBA_APB_DEVICE' arch/arm/mach-bcmring/core.c:56: error: macro "AMBA_APB_DEVICE" requires 6 arguments, but only 5 given arch/arm/mach-bcmring/core.c:56: warning: type defaults to 'int' in declaration of 'AMBA_APB_DEVICE' arch/arm/mach-bcmring/core.c:134: error: 'uartA_device' undeclared here (not in a function) arch/arm/mach-bcmring/core.c:135: error: 'uartB_device' undeclared here (not in a function) make[2]: *** [arch/arm/mach-bcmring/core.o] Error 1 It appeared as of commit 8ede1ae65e61282cddba39bde4142be3885a6f5a "ARM: amba: bcmring: use common amba device initializers" Note that in include/linux/amba/bus.h we have: #define AMBA_APB_DEVICE(name, busid, id, base, irqs, data) ... There is an a --> A case error in the busid and a missing zero placeholder for the id field. Cc: Russell King Signed-off-by: Paul Gortmaker [olof: reworded patch subject] Signed-off-by: Olof Johansson diff --git a/arch/arm/mach-bcmring/core.c b/arch/arm/mach-bcmring/core.c index 22e4e0a..adbfb19 100644 --- a/arch/arm/mach-bcmring/core.c +++ b/arch/arm/mach-bcmring/core.c @@ -52,8 +52,8 @@ #include #include -static AMBA_APB_DEVICE(uartA, "uarta", MM_ADDR_IO_UARTA, { IRQ_UARTA }, NULL); -static AMBA_APB_DEVICE(uartB, "uartb", MM_ADDR_IO_UARTB, { IRQ_UARTB }, NULL); +static AMBA_APB_DEVICE(uartA, "uartA", 0, MM_ADDR_IO_UARTA, {IRQ_UARTA}, NULL); +static AMBA_APB_DEVICE(uartB, "uartB", 0, MM_ADDR_IO_UARTB, {IRQ_UARTB}, NULL); static struct clk pll1_clk = { .name = "PLL1", -- cgit v0.10.2 From 118cb4a408e1c4021ac85d6c05da66bb6f57e556 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 19 Apr 2012 07:33:27 +0200 Subject: ALSA: hda/realtek - Fix regression on Quanta/Gericom KN1 Through the transition to the auto-parser, the support for Quanta/Gericom KN1 got broken. There are two problems behind it: - This machine doesn't like the default COEF setup for ALC260 we take now as default - BIOS doesn't set the pins correctly at all; especially the machine uses only the pin 0x0f for both headphone and speaker This patch adds the fixup as a workaround for these issues. Reported-and-tested-by: Uros Vampl Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 2508f81..e65e354 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -1445,6 +1445,13 @@ enum { ALC_FIXUP_ACT_BUILD, }; +static void alc_apply_pincfgs(struct hda_codec *codec, + const struct alc_pincfg *cfg) +{ + for (; cfg->nid; cfg++) + snd_hda_codec_set_pincfg(codec, cfg->nid, cfg->val); +} + static void alc_apply_fixup(struct hda_codec *codec, int action) { struct alc_spec *spec = codec->spec; @@ -1478,9 +1485,7 @@ static void alc_apply_fixup(struct hda_codec *codec, int action) snd_printdd(KERN_INFO "hda_codec: %s: " "Apply pincfg for %s\n", codec->chip_name, modelname); - for (; cfg->nid; cfg++) - snd_hda_codec_set_pincfg(codec, cfg->nid, - cfg->val); + alc_apply_pincfgs(codec, cfg); break; case ALC_FIXUP_VERBS: if (action != ALC_FIXUP_ACT_PROBE || !fix->v.verbs) @@ -4861,6 +4866,7 @@ enum { ALC260_FIXUP_GPIO1_TOGGLE, ALC260_FIXUP_REPLACER, ALC260_FIXUP_HP_B1900, + ALC260_FIXUP_KN1, }; static void alc260_gpio1_automute(struct hda_codec *codec) @@ -4888,6 +4894,36 @@ static void alc260_fixup_gpio1_toggle(struct hda_codec *codec, } } +static void alc260_fixup_kn1(struct hda_codec *codec, + const struct alc_fixup *fix, int action) +{ + struct alc_spec *spec = codec->spec; + static const struct alc_pincfg pincfgs[] = { + { 0x0f, 0x02214000 }, /* HP/speaker */ + { 0x12, 0x90a60160 }, /* int mic */ + { 0x13, 0x02a19000 }, /* ext mic */ + { 0x18, 0x01446000 }, /* SPDIF out */ + /* disable bogus I/O pins */ + { 0x10, 0x411111f0 }, + { 0x11, 0x411111f0 }, + { 0x14, 0x411111f0 }, + { 0x15, 0x411111f0 }, + { 0x16, 0x411111f0 }, + { 0x17, 0x411111f0 }, + { 0x19, 0x411111f0 }, + { } + }; + + switch (action) { + case ALC_FIXUP_ACT_PRE_PROBE: + alc_apply_pincfgs(codec, pincfgs); + break; + case ALC_FIXUP_ACT_PROBE: + spec->init_amp = ALC_INIT_NONE; + break; + } +} + static const struct alc_fixup alc260_fixups[] = { [ALC260_FIXUP_HP_DC5750] = { .type = ALC_FIXUP_PINS, @@ -4938,7 +4974,11 @@ static const struct alc_fixup alc260_fixups[] = { .v.func = alc260_fixup_gpio1_toggle, .chained = true, .chain_id = ALC260_FIXUP_COEF, - } + }, + [ALC260_FIXUP_KN1] = { + .type = ALC_FIXUP_FUNC, + .v.func = alc260_fixup_kn1, + }, }; static const struct snd_pci_quirk alc260_fixup_tbl[] = { @@ -4948,6 +4988,7 @@ static const struct snd_pci_quirk alc260_fixup_tbl[] = { SND_PCI_QUIRK(0x103c, 0x280a, "HP dc5750", ALC260_FIXUP_HP_DC5750), SND_PCI_QUIRK(0x103c, 0x30ba, "HP Presario B1900", ALC260_FIXUP_HP_B1900), SND_PCI_QUIRK(0x1509, 0x4540, "Favorit 100XS", ALC260_FIXUP_GPIO1), + SND_PCI_QUIRK(0x152d, 0x0729, "Quanta KN1", ALC260_FIXUP_KN1), SND_PCI_QUIRK(0x161f, 0x2057, "Replacer 672V", ALC260_FIXUP_REPLACER), SND_PCI_QUIRK(0x1631, 0xc017, "PB V7900", ALC260_FIXUP_COEF), {} -- cgit v0.10.2 From 9b7f43afd417a6feb80841d30ced4051c362eb5d Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Wed, 18 Apr 2012 23:34:46 -0700 Subject: memcg: fix Bad page state after replace_page_cache My 9ce70c0240d0 "memcg: fix deadlock by inverting lrucare nesting" put a nasty little bug into v3.3's version of mem_cgroup_replace_page_cache(), sometimes used for FUSE. Replacing __mem_cgroup_commit_charge_lrucare() by __mem_cgroup_commit_charge(), I used the "pc" pointer set up earlier: but it's for oldpage, and needs now to be for newpage. Once oldpage was freed, its PageCgroupUsed bit (cleared above but set again here) caused "Bad page state" messages - and perhaps worse, being missed from newpage. (I didn't find this by using FUSE, but in reusing the function for tmpfs.) Signed-off-by: Hugh Dickins Cc: stable@vger.kernel.org [v3.3 only] Signed-off-by: Linus Torvalds diff --git a/mm/memcontrol.c b/mm/memcontrol.c index a7165a6..b868def 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -3392,6 +3392,7 @@ void mem_cgroup_replace_page_cache(struct page *oldpage, * the newpage may be on LRU(or pagevec for LRU) already. We lock * LRU while we overwrite pc->mem_cgroup. */ + pc = lookup_page_cgroup(newpage); __mem_cgroup_commit_charge(memcg, newpage, 1, pc, type, true); } -- cgit v0.10.2 From 8d9a784d1e2c75e0dcae06f77a02f5e7bb547f3a Mon Sep 17 00:00:00 2001 From: Stuart Menefy Date: Tue, 14 Feb 2012 11:29:11 +0000 Subject: sh: Fix error synchronising kernel page tables The problem is caused by the interaction of two features in the Linux memory management code. A processes address space is described by a struct mm_struct, and every thread has a pointer to the mm it should run in. The exception to this are kernel threads, which don't have an mm, and so borrow the mm from the last thread which ran. The system is bootstrapped by the initial kernel thread using init's mm (even though init hasn't been created yet, its mm is the static init_mm). The other feature is how the kernel handles the page table which describes the portion of the address space which is only visible when executing inside the kernel, and which is shared by all threads. On the SH4 the only portion of the kernel's address space which described using the page table is called P3, from 0xc0000000 to 0xdfffffff. This portion of the address space is divided into three: - mappings for dma_alloc_coherent() - mappings for vmalloc() and ioremap() - fixmap mappings, primarily used in copy_user_pages() to create kernel mappings of user pages with the correct cache colour. To optimise the TLB miss handler we don't want to add an additional condition which checks whether the faulting address is in the user or the kernel portion of the address space, and so all page tables have a common portion which describes the kernel part of the address space. As the SH4 uses a two level page table, only the kernel portion of first level page table (the pgd entries) is duplicated. These all point to the same second level entries (the pte's), and so no memory is wasted. The reference page table for the kernel is called the swapper_pg_dir, and when a new page table is created for a new process the kernel portion of the page table is copied from swapper_pg_dir. This works fine when changes only occur in the second level of the kernel's page table, or the first level entries are created before any new user processes. However if a change occurs to the first level of the page table, and there are existing processes which don't have this entry in their page table, this new entry needs to be added. This is done on demand, when the kernel accesses a P3 address which isn't mapped using the current page table, the code in vmalloc_fault() copies the entry from the reference page table (swapper_pg_dir) into the current processes page table. The bug which this patch addresses is that the code in vmalloc_fault() was not copying addresses which fell in the dma_alloc_coherent() portion of the address space, and it should have been copying any P3 address. Why we hadn't seen this before, and what made this hard to reproduce, is that normally the kernel will have called dma_alloc_coherent(), and accessed the memory mapping created, before any user process runs. Typically drivers such as USB or SATA will have created and used mappings of this type during the kernel initialisation, when probing for the attached devices, before init runs. Ethernet is slightly different, as it normally only creates and accesses dma_alloc_coherent() mappings when the network is brought up, but if kernel level IP configuration is used this will also occur before any user space process runs. So the first reproduction of this problem which we saw was occurred when USB and SATA were removed from the kernel, and then bring up Ethernet from user space using ifconfig. I'd like to thank Joseph Bormolini who did the hard work reducing the problem to this simple to reproduce criteria. In your case the situation is slightly different, and turns out to depends on the exact kernel configuration (which we had) and your ramdisk contents (which we didn't - hence the need for some assumptions). In this case the problem is a side effect of kernel level module loading. Kernel subsystems sometimes trigger the load of kernel modules directly, for example the crypto subsystem tries to load the cryptomgr and MTD tries to load modules for Flash partitioning if these are not built into the kernel. This is done by the kernel creating a user process which runs insmod to try and load the appropriate module. In order for this to cause problems the system must be running with a initrd or initramfs, which contains an insmod executable - if the kernel can't find an insmod to run, no user process is created, and the problem doesn't occur. If an insmod is found, a process is created to run it, which will inherit the kernel portion of the swapper_pg_dir first level page table. It doesn't matter whether the inmod is successful or not, but when the the kernel scheduler context switches back to the kernel initialisation thread, the insmod's mm is 'borrowed' by the kernel thread, as it doesn't have an address space of its own. (Reference counting is used to ensure this mm is not destroyed, even though the user process which caused its creation may no longer exist.) If this address space doesn't have a first level page table entry for the consistent mappings, and a driver tries to access such a mapping, we are in the same situation as described above, except this time in a kernel thread rather than a user thread executing inside the kernel. See bugzilla: 15425, 15836, 15862, 16106, 16793 Signed-off-by: Stuart Menefy Signed-off-by: Paul Mundt diff --git a/arch/sh/mm/fault_32.c b/arch/sh/mm/fault_32.c index 324eef9..e99b104 100644 --- a/arch/sh/mm/fault_32.c +++ b/arch/sh/mm/fault_32.c @@ -86,7 +86,7 @@ static noinline int vmalloc_fault(unsigned long address) pte_t *pte_k; /* Make sure we are in vmalloc/module/P3 area: */ - if (!(address >= VMALLOC_START && address < P3_ADDR_MAX)) + if (!(address >= P3SEG && address < P3_ADDR_MAX)) return -1; /* -- cgit v0.10.2 From b10c6d4b50cbbdccce2187c1ccc516a9c7335835 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 19 Apr 2012 09:33:32 +0100 Subject: drm/usb: fix module license on drm/usb layer. Allows this module to load correctly with certain debugging options on. Reported on irc by scientes Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/drm_usb.c b/drivers/gpu/drm/drm_usb.c index c8c83da..37c9a52 100644 --- a/drivers/gpu/drm/drm_usb.c +++ b/drivers/gpu/drm/drm_usb.c @@ -1,6 +1,6 @@ #include "drmP.h" #include -#include +#include int drm_get_usb_dev(struct usb_interface *interface, const struct usb_device_id *id, @@ -114,3 +114,7 @@ void drm_usb_exit(struct drm_driver *driver, usb_deregister(udriver); } EXPORT_SYMBOL(drm_usb_exit); + +MODULE_AUTHOR("David Airlie"); +MODULE_DESCRIPTION("USB DRM support"); +MODULE_LICENSE("GPL and additional rights"); -- cgit v0.10.2 From ac71311e65e2c4c2dbac76db698fecbee755b016 Mon Sep 17 00:00:00 2001 From: AceLan Kao Date: Thu, 19 Apr 2012 14:53:45 +0800 Subject: Bluetooth: Add support for AR3012 [0cf3:e004] Add another vendor specific ID for Atheros AR3012 output of usb-devices: T: Bus=02 Lev=02 Prnt=02 Port=04 Cnt=01 Dev#= 4 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0cf3 ProdID=e004 Rev=00.02 S: Manufacturer=Atheros Communications S: Product=Bluetooth USB Host Controller S: SerialNumber=Alaska Day 2006 C: #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb I: If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb BugLink: https://bugs.launchpad.net/bugs/922715 Signed-off-by: AceLan Kao Signed-off-by: Marcel Holtmann diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c index 639a161..57fd867 100644 --- a/drivers/bluetooth/ath3k.c +++ b/drivers/bluetooth/ath3k.c @@ -76,6 +76,7 @@ static struct usb_device_id ath3k_table[] = { { USB_DEVICE(0x13d3, 0x3375) }, { USB_DEVICE(0x04CA, 0x3005) }, { USB_DEVICE(0x13d3, 0x3362) }, + { USB_DEVICE(0x0CF3, 0xE004) }, /* Atheros AR5BBU12 with sflash firmware */ { USB_DEVICE(0x0489, 0xE02C) }, @@ -96,6 +97,7 @@ static struct usb_device_id ath3k_blist_tbl[] = { { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, { } /* Terminating entry */ }; diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index a497544..93cc828 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -135,6 +135,7 @@ static struct usb_device_id blacklist_table[] = { { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, /* Atheros AR5BBU12 with sflash firmware */ { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, -- cgit v0.10.2 From 15b120d67019d691e4389372967332d74a80522a Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Wed, 18 Apr 2012 13:59:30 +0300 Subject: usb: gadget: dummy: do not call pullup() on udc_stop() pullup() is already called properly by udc-core.c and there's no need to call it from udc_stop(), in fact that will cause issues. Cc: stable@vger.kernel.org Reviewed-by: Alexander Shishkin Acked-by: Alan Stern Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index a6dfd21..170cbe8 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -927,7 +927,6 @@ static int dummy_udc_stop(struct usb_gadget *g, dum->driver = NULL; - dummy_pullup(&dum->gadget, 0); return 0; } -- cgit v0.10.2 From 3e843196c697ee2c319d96e861980fb4c3e04e24 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 19 Apr 2012 12:04:03 +0200 Subject: ALSA: hda/sigmatel - Fix inverted mute LED While refactoring the mute-LED handling for HP laptops, I messed up the polarity check in a wrong way. The red (or the mute-LED if any) should appear in the muted state, corresponding to GPIO on. Reported-by: Mikko Vinni Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 33a9946..4742cac 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -5063,12 +5063,11 @@ static void stac92xx_update_led_status(struct hda_codec *codec, int enabled) if (spec->gpio_led_polarity) muted = !muted; - /*polarity defines *not* muted state level*/ if (!spec->vref_mute_led_nid) { if (muted) - spec->gpio_data &= ~spec->gpio_led; /* orange */ + spec->gpio_data |= spec->gpio_led; else - spec->gpio_data |= spec->gpio_led; /* white */ + spec->gpio_data &= ~spec->gpio_led; stac_gpio_set(codec, spec->gpio_mask, spec->gpio_dir, spec->gpio_data); } else { -- cgit v0.10.2 From 590b4775d6b628c7ad215fd0335a0a787032e2dd Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Thu, 19 Apr 2012 00:00:27 -0700 Subject: ALSA: workaround: change the timing of alsa_sound_last_init() Current alsa_sound_last_init() was called as __initcall(). So, on current ALSA, only devices that had been properly registered at this point were shown. So, it will show "No soundcards found" if driver requests probe deferment. it's often misleading. This patch delays the timing of alsa_sound_last_init() as workaround. Signed-off-by: Kuninori Morimoto Reviwed-by: Mark Brown Signed-off-by: Takashi Iwai diff --git a/sound/last.c b/sound/last.c index bdd0857..7ffc182 100644 --- a/sound/last.c +++ b/sound/last.c @@ -38,4 +38,4 @@ static int __init alsa_sound_last_init(void) return 0; } -__initcall(alsa_sound_last_init); +late_initcall_sync(alsa_sound_last_init); -- cgit v0.10.2 From cd90491bcd63af3f1505de76aa82d5884f1d16e7 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Sun, 8 Apr 2012 16:31:24 -0300 Subject: [media] V4L: mt9m032: fix two dead-locks Fix a copy-paste typo and a nested locking function call in mt9m032. Signed-off-by: Guennadi Liakhovetski Acked-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/mt9m032.c b/drivers/media/video/mt9m032.c index 7636672..645973c 100644 --- a/drivers/media/video/mt9m032.c +++ b/drivers/media/video/mt9m032.c @@ -392,10 +392,11 @@ static int mt9m032_set_pad_format(struct v4l2_subdev *subdev, } /* Scaling is not supported, the format is thus fixed. */ - ret = mt9m032_get_pad_format(subdev, fh, fmt); + fmt->format = *__mt9m032_get_pad_format(sensor, fh, fmt->which); + ret = 0; done: - mutex_lock(&sensor->lock); + mutex_unlock(&sensor->lock); return ret; } -- cgit v0.10.2 From 3bc86c624fe48864cd6e3738d5ff35d1fe31fa6c Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Mon, 9 Apr 2012 09:31:56 -0300 Subject: [media] V4L: DocBook: Fix typos in the multi-plane formats description Signed-off-by: Sylwester Nawrocki Signed-off-by: Mauro Carvalho Chehab diff --git a/Documentation/DocBook/media/v4l/pixfmt-nv12m.xml b/Documentation/DocBook/media/v4l/pixfmt-nv12m.xml index 3fd3ce5..5274c24 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-nv12m.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-nv12m.xml @@ -1,6 +1,6 @@ - V4L2_PIX_FMT_NV12M ('NV12M') + V4L2_PIX_FMT_NV12M ('NM12') &manvol; diff --git a/Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml b/Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml index 9957863..60308f1 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml @@ -1,6 +1,6 @@ - V4L2_PIX_FMT_YUV420M ('YU12M') + V4L2_PIX_FMT_YUV420M ('YM12') &manvol; -- cgit v0.10.2 From 2198edddd8f0245d4c47419310c6cfb0f4e1a197 Mon Sep 17 00:00:00 2001 From: Josh Boyer Date: Wed, 18 Apr 2012 10:05:17 -0400 Subject: HID: default HID_BATTERY_STRENGTH to no Commit 4f5ca836b "HID: hid-input: add support for HID devices reporting Battery Strength" added the CONFIG_HID_BATTERY_STRENGTH option to report the battery strength of HID devices. The commit log explicitly mentions it not working properly with recent userspace, but it is default y anyway. This is rather odd, and actually causes problems on real systems. This works around Fedora bug https://bugzilla.redhat.com/show_bug.cgi?id=806295 Signed-off-by: Josh Boyer Signed-off-by: Jiri Kosina diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index a3d0332..ffddcba 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -34,7 +34,7 @@ config HID config HID_BATTERY_STRENGTH bool depends on HID && POWER_SUPPLY && HID = POWER_SUPPLY - default y + default n config HIDRAW bool "/dev/hidraw raw HID device support" -- cgit v0.10.2 From e36325071832f1ba96ac54fb8ba1459f08b05dd8 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 18 Apr 2012 15:21:07 +0200 Subject: drm/radeon/kms: fix the regression of DVI connector check The check of the encoder type in the commit [e00e8b5e: drm/radeon/kms: fix analog load detection on DVI-I connectors] is obviously wrong, and it's the culprit of the regression on my workstation with DVI-analog connection resulting in the blank output. Fixed the typo now. Signed-off-by: Takashi Iwai Reviewed-by: Alex Deucher Cc: Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index bd05156..aa8268d 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -970,7 +970,7 @@ radeon_dvi_detect(struct drm_connector *connector, bool force) encoder = obj_to_encoder(obj); - if (encoder->encoder_type != DRM_MODE_ENCODER_DAC || + if (encoder->encoder_type != DRM_MODE_ENCODER_DAC && encoder->encoder_type != DRM_MODE_ENCODER_TVDAC) continue; -- cgit v0.10.2 From ca3649de026ff95c6f2847e8d096cf2f411c02b3 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 19 Apr 2012 15:15:25 +0200 Subject: ALSA: hda/conexant - Don't set HP pin-control bit unconditionally Some output pins on Conexant chips have no HP control bit, but the auto-parser initializes these pins unconditionally with PIN_HP. Check the pin-capability and avoid the HP bit if not supported. Cc: Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index d29d6d3..f52c9ef 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -3951,9 +3951,14 @@ static void cx_auto_init_output(struct hda_codec *codec) int i; mute_outputs(codec, spec->multiout.num_dacs, spec->multiout.dac_nids); - for (i = 0; i < cfg->hp_outs; i++) + for (i = 0; i < cfg->hp_outs; i++) { + unsigned int val = PIN_OUT; + if (snd_hda_query_pin_caps(codec, cfg->hp_pins[i]) & + AC_PINCAP_HP_DRV) + val |= AC_PINCTL_HP_EN; snd_hda_codec_write(codec, cfg->hp_pins[i], 0, - AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_HP); + AC_VERB_SET_PIN_WIDGET_CONTROL, val); + } mute_outputs(codec, cfg->hp_outs, cfg->hp_pins); mute_outputs(codec, cfg->line_outs, cfg->line_out_pins); mute_outputs(codec, cfg->speaker_outs, cfg->speaker_pins); -- cgit v0.10.2 From aef6a7eeac6fd867eda415f65a7f0247fb82baf4 Mon Sep 17 00:00:00 2001 From: Joonyoung Shim Date: Wed, 18 Apr 2012 13:47:02 +0900 Subject: drm: fix page_flip error handling MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Free event and restore event_space only when page_flip->flags has DRM_MODE_PAGE_FLIP_EVENT if page_flip() is failed. Signed-off-by: Joonyoung Shim Signed-off-by: Kyungmin Park Reviewed-by: Michel Dänzer Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index d3aaeb6..c79870a 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -3335,10 +3335,12 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev, ret = crtc->funcs->page_flip(crtc, fb, e); if (ret) { - spin_lock_irqsave(&dev->event_lock, flags); - file_priv->event_space += sizeof e->event; - spin_unlock_irqrestore(&dev->event_lock, flags); - kfree(e); + if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { + spin_lock_irqsave(&dev->event_lock, flags); + file_priv->event_space += sizeof e->event; + spin_unlock_irqrestore(&dev->event_lock, flags); + kfree(e); + } } out: -- cgit v0.10.2 From dfc6ae5bd70d3a22a0e977943c31f6d55fc32820 Mon Sep 17 00:00:00 2001 From: Jerome Glisse Date: Tue, 17 Apr 2012 16:51:38 -0400 Subject: radeon: fix r600/agp when vram is after AGP (v3) If AGP is placed in the middle, the size_af is off-by-one, it results in VRAM being placed at 0x7fffffff instead of 0x8000000. v2: fix the vram_start setup. v3: also fix r7xx & newer ASIC Reported-by: russiane39 on #radeon Signed-off-by: Jerome Glisse Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index de71243..c8187c4 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -1135,7 +1135,7 @@ static void r600_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc } if (rdev->flags & RADEON_IS_AGP) { size_bf = mc->gtt_start; - size_af = 0xFFFFFFFF - mc->gtt_end + 1; + size_af = 0xFFFFFFFF - mc->gtt_end; if (size_bf > size_af) { if (mc->mc_vram_size > size_bf) { dev_warn(rdev->dev, "limiting VRAM\n"); @@ -1149,7 +1149,7 @@ static void r600_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc mc->real_vram_size = size_af; mc->mc_vram_size = size_af; } - mc->vram_start = mc->gtt_end; + mc->vram_start = mc->gtt_end + 1; } mc->vram_end = mc->vram_start + mc->mc_vram_size - 1; dev_info(rdev->dev, "VRAM: %lluM 0x%08llX - 0x%08llX (%lluM used)\n", diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index c62ae4b..cdab1ae 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -969,7 +969,7 @@ void r700_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc) } if (rdev->flags & RADEON_IS_AGP) { size_bf = mc->gtt_start; - size_af = 0xFFFFFFFF - mc->gtt_end + 1; + size_af = 0xFFFFFFFF - mc->gtt_end; if (size_bf > size_af) { if (mc->mc_vram_size > size_bf) { dev_warn(rdev->dev, "limiting VRAM\n"); @@ -983,7 +983,7 @@ void r700_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc) mc->real_vram_size = size_af; mc->mc_vram_size = size_af; } - mc->vram_start = mc->gtt_end; + mc->vram_start = mc->gtt_end + 1; } mc->vram_end = mc->vram_start + mc->mc_vram_size - 1; dev_info(rdev->dev, "VRAM: %lluM 0x%08llX - 0x%08llX (%lluM used)\n", -- cgit v0.10.2 From 5edaad87000a143504a8f8e2864bb415a9287d94 Mon Sep 17 00:00:00 2001 From: Marcos Paulo de Souza Date: Wed, 18 Apr 2012 01:30:02 -0300 Subject: drivers: gpu: drm: gma500: mdfld_dsi_output.h: Remove not unneeded include of version.h The output of "make versioncheck" points a incorrect include of version.h in the drivers/gpu/drm/gma500/mdfld_dsi_output.h: drivers/gpu/drm/gma500/mdfld_dsi_output.h: 32 linux/version.h not needed. If we take a look in the file, we can agree to remove it. Cc: David Airlie Cc: Signed-off-by: Marcos Paulo de Souza Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/gma500/mdfld_dsi_output.h b/drivers/gpu/drm/gma500/mdfld_dsi_output.h index 21071ce..36eb074 100644 --- a/drivers/gpu/drm/gma500/mdfld_dsi_output.h +++ b/drivers/gpu/drm/gma500/mdfld_dsi_output.h @@ -29,7 +29,6 @@ #define __MDFLD_DSI_OUTPUT_H__ #include -#include #include #include #include -- cgit v0.10.2 From 5799d9e2eab20ef694fb92a7636f451e1b0e456c Mon Sep 17 00:00:00 2001 From: Jim Meyering Date: Tue, 17 Apr 2012 21:27:54 +0200 Subject: drm/nouveau/pm: don't read/write beyond end of stack buffer NUL-terminate after strncpy. If the parameter "profile" has length 16 or more, then strncpy leaves "string" with no NUL terminator, so the following search for '\n' may read beyond the end of that 16-byte buffer. If it finds a newline there, then it will also write beyond the end of that stack buffer. Signed-off-by: Jim Meyering Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/nouveau/nouveau_pm.c b/drivers/gpu/drm/nouveau/nouveau_pm.c index 34d591b..da3e7c3 100644 --- a/drivers/gpu/drm/nouveau/nouveau_pm.c +++ b/drivers/gpu/drm/nouveau/nouveau_pm.c @@ -235,6 +235,7 @@ nouveau_pm_profile_set(struct drm_device *dev, const char *profile) return -EPERM; strncpy(string, profile, sizeof(string)); + string[sizeof(string) - 1] = 0; if ((ptr = strchr(string, '\n'))) *ptr = '\0'; -- cgit v0.10.2 From 4e47e02d1ac47b6eb591b2a632a6c059ce3e5002 Mon Sep 17 00:00:00 2001 From: Prathyush Date: Sat, 14 Apr 2012 17:22:13 +0530 Subject: drm: Releasing FBs before releasing GEM objects during drm_release During DRM release, all the FBs and gem objects are released. If a gem object is being used as a FB and set to a crtc, it must not be freed before releasing the framebuffer first. If FBs are released first, the crtc using the FB is disabled first so now the GEM object can be freed safely. The CRTC will be enabled again when the driver restores fbdev mode. Signed-off-by: Prathyush K Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c index cdfbf27..123de28 100644 --- a/drivers/gpu/drm/drm_fops.c +++ b/drivers/gpu/drm/drm_fops.c @@ -507,12 +507,12 @@ int drm_release(struct inode *inode, struct file *filp) drm_events_release(file_priv); - if (dev->driver->driver_features & DRIVER_GEM) - drm_gem_release(dev, file_priv); - if (dev->driver->driver_features & DRIVER_MODESET) drm_fb_release(file_priv); + if (dev->driver->driver_features & DRIVER_GEM) + drm_gem_release(dev, file_priv); + mutex_lock(&dev->ctxlist_mutex); if (!list_empty(&dev->ctxlist)) { struct drm_ctx_list *pos, *n; -- cgit v0.10.2 From a09d431f344d854e4fe9cfac44f78cb8202f3eb7 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 19 Apr 2012 15:42:58 +0100 Subject: drm/radeon: fix load detect on rn50 with hardcoded EDIDs. When the force changes went in back in 3.3.0, we ended up returning disconnected in the !force case, and the connected in when forced, as it hit the hardcoded check. Fix it so all exits go via the hardcoded check and stop spurious modesets on platforms with hardcoded EDIDs. Reported-by: Evan McNabb (Red Hat) Reviewed-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index aa8268d..3c2e7a0 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -1000,6 +1000,7 @@ radeon_dvi_detect(struct drm_connector *connector, bool force) * cases the DVI port is actually a virtual KVM port connected to the service * processor. */ +out: if ((!rdev->is_atom_bios) && (ret == connector_status_disconnected) && rdev->mode_info.bios_hardcoded_edid_size) { @@ -1007,7 +1008,6 @@ radeon_dvi_detect(struct drm_connector *connector, bool force) ret = connector_status_connected; } -out: /* updated in get modes as well since we need to know if it's analog or digital */ radeon_connector_update_scratch_regs(connector, ret); return ret; -- cgit v0.10.2 From d70f363222ef373c2037412f09a600357cfa1c7a Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 19 Apr 2012 15:18:08 +0200 Subject: ALSA: hda/conexant - Set up the missing docking-station pins ThinkPad 410,420,510,520 and X201 with cx50585 & co chips have the docking-station ports, but BIOS doesn't initialize for these pins. Thus, like the former X200, we need to set up the pins manually in the driver. The odd part is that the same PCI SSID is used for X200 and T400, thus we need to prepare individual fixup tables for cx5051 and others. Bugzilla entries: https://bugzilla.redhat.com/show_bug.cgi?id=808559 https://bugzilla.redhat.com/show_bug.cgi?id=806217 https://bugzilla.redhat.com/show_bug.cgi?id=810697 Reported-by: Josh Boyer Reported-by: Jens Taprogge Tested-by: Jens Taprogge Cc: Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index f52c9ef..58b5de4 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -4367,8 +4367,10 @@ static void apply_pin_fixup(struct hda_codec *codec, enum { CXT_PINCFG_LENOVO_X200, + CXT_PINCFG_LENOVO_TP410, }; +/* ThinkPad X200 & co with cxt5051 */ static const struct cxt_pincfg cxt_pincfg_lenovo_x200[] = { { 0x16, 0x042140ff }, /* HP (seq# overridden) */ { 0x17, 0x21a11000 }, /* dock-mic */ @@ -4376,15 +4378,33 @@ static const struct cxt_pincfg cxt_pincfg_lenovo_x200[] = { {} }; +/* ThinkPad 410/420/510/520, X201 & co with cxt5066 */ +static const struct cxt_pincfg cxt_pincfg_lenovo_tp410[] = { + { 0x19, 0x042110ff }, /* HP (seq# overridden) */ + { 0x1a, 0x21a190f0 }, /* dock-mic */ + { 0x1c, 0x212140ff }, /* dock-HP */ + {} +}; + static const struct cxt_pincfg *cxt_pincfg_tbl[] = { [CXT_PINCFG_LENOVO_X200] = cxt_pincfg_lenovo_x200, + [CXT_PINCFG_LENOVO_TP410] = cxt_pincfg_lenovo_tp410, }; -static const struct snd_pci_quirk cxt_fixups[] = { +static const struct snd_pci_quirk cxt5051_fixups[] = { SND_PCI_QUIRK(0x17aa, 0x20f2, "Lenovo X200", CXT_PINCFG_LENOVO_X200), {} }; +static const struct snd_pci_quirk cxt5066_fixups[] = { + SND_PCI_QUIRK(0x17aa, 0x20f2, "Lenovo T400", CXT_PINCFG_LENOVO_TP410), + SND_PCI_QUIRK(0x17aa, 0x215e, "Lenovo T410", CXT_PINCFG_LENOVO_TP410), + SND_PCI_QUIRK(0x17aa, 0x215f, "Lenovo T510", CXT_PINCFG_LENOVO_TP410), + SND_PCI_QUIRK(0x17aa, 0x21ce, "Lenovo T420", CXT_PINCFG_LENOVO_TP410), + SND_PCI_QUIRK(0x17aa, 0x21cf, "Lenovo T520", CXT_PINCFG_LENOVO_TP410), + {} +}; + /* add "fake" mute amp-caps to DACs on cx5051 so that mixer mute switches * can be created (bko#42825) */ @@ -4421,11 +4441,13 @@ static int patch_conexant_auto(struct hda_codec *codec) break; case 0x14f15051: add_cx5051_fake_mutes(codec); + apply_pin_fixup(codec, cxt5051_fixups, cxt_pincfg_tbl); + break; + default: + apply_pin_fixup(codec, cxt5066_fixups, cxt_pincfg_tbl); break; } - apply_pin_fixup(codec, cxt_fixups, cxt_pincfg_tbl); - err = cx_auto_search_adcs(codec); if (err < 0) return err; -- cgit v0.10.2 From 273a50fbcd2d2c0652bbda58dd1985f932ce6d75 Mon Sep 17 00:00:00 2001 From: Henrik Rydberg Date: Fri, 13 Apr 2012 00:37:00 +0200 Subject: nouveau: Set special lane map for the right chipset The refactoring of the nv50 logic, introduced in 8663bc7c, modified the test for the special lane map used on some Apple computers with Nvidia chipsets. The tested MBA3,1 would still boot, but resume from suspend stopped working. This patch restores the old test, which fixes the problem. Signed-off-by: Henrik Rydberg Acked-by: Ben Skeggs Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/nouveau/nv50_sor.c b/drivers/gpu/drm/nouveau/nv50_sor.c index a7844ab..2746402 100644 --- a/drivers/gpu/drm/nouveau/nv50_sor.c +++ b/drivers/gpu/drm/nouveau/nv50_sor.c @@ -42,7 +42,7 @@ nv50_sor_dp_lane_map(struct drm_device *dev, struct dcb_entry *dcb, u8 lane) struct drm_nouveau_private *dev_priv = dev->dev_private; static const u8 nvaf[] = { 24, 16, 8, 0 }; /* thanks, apple.. */ static const u8 nv50[] = { 16, 8, 0, 24 }; - if (dev_priv->card_type == 0xaf) + if (dev_priv->chipset == 0xaf) return nvaf[lane]; return nv50[lane]; } -- cgit v0.10.2 From a720b2dd2470a52345df11dca8d6c1466599f812 Mon Sep 17 00:00:00 2001 From: "Srivatsa S. Bhat" Date: Thu, 19 Apr 2012 12:35:08 +0200 Subject: x86, intel_cacheinfo: Fix error return code in amd_set_l3_disable_slot() If the L3 disable slot is already in use, return -EEXIST instead of -EINVAL. The caller, store_cache_disable(), checks this return value to print an appropriate warning. Also, we want to signal with -EEXIST that the current index we're disabling has actually been already disabled on the node: $ echo 12 > /sys/devices/system/cpu/cpu3/cache/index3/cache_disable_0 $ echo 12 > /sys/devices/system/cpu/cpu3/cache/index3/cache_disable_0 -bash: echo: write error: File exists $ echo 12 > /sys/devices/system/cpu/cpu3/cache/index3/cache_disable_1 -bash: echo: write error: File exists $ echo 12 > /sys/devices/system/cpu/cpu5/cache/index3/cache_disable_1 -bash: echo: write error: File exists The old code would say -bash: echo: write error: Invalid argument for disable slot 1 when playing the example above with no output in dmesg, which is clearly misleading. Reported-by: Dan Carpenter Signed-off-by: Srivatsa S. Bhat Link: http://lkml.kernel.org/r/20120419070053.GB16645@elgon.mountain [Boris: add testing for the other index too] Signed-off-by: Borislav Petkov diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c index 73d08ed..b8f3653 100644 --- a/arch/x86/kernel/cpu/intel_cacheinfo.c +++ b/arch/x86/kernel/cpu/intel_cacheinfo.c @@ -433,14 +433,14 @@ int amd_set_l3_disable_slot(struct amd_northbridge *nb, int cpu, unsigned slot, /* check if @slot is already used or the index is already disabled */ ret = amd_get_l3_disable_slot(nb, slot); if (ret >= 0) - return -EINVAL; + return -EEXIST; if (index > nb->l3_cache.indices) return -EINVAL; /* check whether the other slot has disabled the same index already */ if (index == amd_get_l3_disable_slot(nb, !slot)) - return -EINVAL; + return -EEXIST; amd_l3_disable_index(nb, cpu, slot, index); @@ -468,8 +468,8 @@ static ssize_t store_cache_disable(struct _cpuid4_info *this_leaf, err = amd_set_l3_disable_slot(this_leaf->base.nb, cpu, slot, val); if (err) { if (err == -EEXIST) - printk(KERN_WARNING "L3 disable slot %d in use!\n", - slot); + pr_warning("L3 slot %d in use/index already disabled!\n", + slot); return err; } return count; -- cgit v0.10.2 From 3066616ce23aad5719c23a0f21f32676402cb44b Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Tue, 17 Apr 2012 22:21:38 -0400 Subject: xen/xenbus: Add quirk to deal with misconfigured backends. A rather annoying and common case is when booting a PVonHVM guest and exposing the PV KBD and PV VFB - as broken toolstacks don't always initialize the backends correctly. Normally The HVM guest is using the VGA driver and the emulated keyboard for this (though upstream version of QEMU implements PV KBD, but still uses a VGA driver). We provide a very basic two-stage wait mechanism - where we wait for 30 seconds for all devices, and then for 270 for all them except the two mentioned. That allows us to wait for the essential devices, like network or disk for the full 6 minutes. To trigger this, put this in your guest config: vfb = [ 'vnc=1, vnclisten=0.0.0.0 ,vncunused=1'] instead of this: vnc=1 vnclisten="0.0.0.0" CC: stable@kernel.org Acked-by: Stefano Stabellini [v3: Split delay in non-essential (30 seconds) and essential devices per Ian and Stefano suggestion] [v4: Added comments per Stefano suggestion] Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/xen/xenbus/xenbus_probe_frontend.c b/drivers/xen/xenbus/xenbus_probe_frontend.c index f20c5f1..a31b54d 100644 --- a/drivers/xen/xenbus/xenbus_probe_frontend.c +++ b/drivers/xen/xenbus/xenbus_probe_frontend.c @@ -135,7 +135,7 @@ static int read_backend_details(struct xenbus_device *xendev) return xenbus_read_otherend_details(xendev, "backend-id", "backend"); } -static int is_device_connecting(struct device *dev, void *data) +static int is_device_connecting(struct device *dev, void *data, bool ignore_nonessential) { struct xenbus_device *xendev = to_xenbus_device(dev); struct device_driver *drv = data; @@ -152,16 +152,41 @@ static int is_device_connecting(struct device *dev, void *data) if (drv && (dev->driver != drv)) return 0; + if (ignore_nonessential) { + /* With older QEMU, for PVonHVM guests the guest config files + * could contain: vfb = [ 'vnc=1, vnclisten=0.0.0.0'] + * which is nonsensical as there is no PV FB (there can be + * a PVKB) running as HVM guest. */ + + if ((strncmp(xendev->nodename, "device/vkbd", 11) == 0)) + return 0; + + if ((strncmp(xendev->nodename, "device/vfb", 10) == 0)) + return 0; + } xendrv = to_xenbus_driver(dev->driver); return (xendev->state < XenbusStateConnected || (xendev->state == XenbusStateConnected && xendrv->is_ready && !xendrv->is_ready(xendev))); } +static int essential_device_connecting(struct device *dev, void *data) +{ + return is_device_connecting(dev, data, true /* ignore PV[KBB+FB] */); +} +static int non_essential_device_connecting(struct device *dev, void *data) +{ + return is_device_connecting(dev, data, false); +} -static int exists_connecting_device(struct device_driver *drv) +static int exists_essential_connecting_device(struct device_driver *drv) { return bus_for_each_dev(&xenbus_frontend.bus, NULL, drv, - is_device_connecting); + essential_device_connecting); +} +static int exists_non_essential_connecting_device(struct device_driver *drv) +{ + return bus_for_each_dev(&xenbus_frontend.bus, NULL, drv, + non_essential_device_connecting); } static int print_device_status(struct device *dev, void *data) @@ -192,6 +217,23 @@ static int print_device_status(struct device *dev, void *data) /* We only wait for device setup after most initcalls have run. */ static int ready_to_wait_for_devices; +static bool wait_loop(unsigned long start, unsigned int max_delay, + unsigned int *seconds_waited) +{ + if (time_after(jiffies, start + (*seconds_waited+5)*HZ)) { + if (!*seconds_waited) + printk(KERN_WARNING "XENBUS: Waiting for " + "devices to initialise: "); + *seconds_waited += 5; + printk("%us...", max_delay - *seconds_waited); + if (*seconds_waited == max_delay) + return true; + } + + schedule_timeout_interruptible(HZ/10); + + return false; +} /* * On a 5-minute timeout, wait for all devices currently configured. We need * to do this to guarantee that the filesystems and / or network devices @@ -215,19 +257,14 @@ static void wait_for_devices(struct xenbus_driver *xendrv) if (!ready_to_wait_for_devices || !xen_domain()) return; - while (exists_connecting_device(drv)) { - if (time_after(jiffies, start + (seconds_waited+5)*HZ)) { - if (!seconds_waited) - printk(KERN_WARNING "XENBUS: Waiting for " - "devices to initialise: "); - seconds_waited += 5; - printk("%us...", 300 - seconds_waited); - if (seconds_waited == 300) - break; - } - - schedule_timeout_interruptible(HZ/10); - } + while (exists_non_essential_connecting_device(drv)) + if (wait_loop(start, 30, &seconds_waited)) + break; + + /* Skips PVKB and PVFB check.*/ + while (exists_essential_connecting_device(drv)) + if (wait_loop(start, 270, &seconds_waited)) + break; if (seconds_waited) printk("\n"); -- cgit v0.10.2 From 05ffe24f5290dc095f98fbaf84afe51ef404ccc5 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Wed, 18 Apr 2012 12:20:10 -0400 Subject: NFSv4: Ensure that the LOCK code sets exception->inode All callers of nfs4_handle_exception() that need to handle NFS4ERR_OPENMODE correctly should set exception->inode Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index f82bde0..3c787d0 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -4558,7 +4558,9 @@ static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *f static int nfs4_lock_reclaim(struct nfs4_state *state, struct file_lock *request) { struct nfs_server *server = NFS_SERVER(state->inode); - struct nfs4_exception exception = { }; + struct nfs4_exception exception = { + .inode = state->inode, + }; int err; do { @@ -4576,7 +4578,9 @@ static int nfs4_lock_reclaim(struct nfs4_state *state, struct file_lock *request static int nfs4_lock_expired(struct nfs4_state *state, struct file_lock *request) { struct nfs_server *server = NFS_SERVER(state->inode); - struct nfs4_exception exception = { }; + struct nfs4_exception exception = { + .inode = state->inode, + }; int err; err = nfs4_set_lock_state(state, request); @@ -4676,6 +4680,7 @@ static int nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock * { struct nfs4_exception exception = { .state = state, + .inode = state->inode, }; int err; -- cgit v0.10.2 From 55725513b5ef9d462aa3e18527658a0362aaae83 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Wed, 18 Apr 2012 12:48:35 -0400 Subject: NFSv4: Ensure that we check lock exclusive/shared type against open modes Since we may be simulating flock() locks using NFS byte range locks, we can't rely on the VFS having checked the file open mode for us. Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 3c787d0..ba837d9 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -4726,6 +4726,20 @@ nfs4_proc_lock(struct file *filp, int cmd, struct file_lock *request) if (state == NULL) return -ENOLCK; + /* + * Don't rely on the VFS having checked the file open mode, + * since it won't do this for flock() locks. + */ + switch (request->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) { + case F_RDLCK: + if (!(filp->f_mode & FMODE_READ)) + return -EBADF; + break; + case F_WRLCK: + if (!(filp->f_mode & FMODE_WRITE)) + return -EBADF; + } + do { status = nfs4_proc_setlk(state, cmd, request); if ((status != -EAGAIN) || IS_SETLK(cmd)) -- cgit v0.10.2 From 451146be933e26e21277852b5e40c6a52266ef96 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Wed, 18 Apr 2012 16:29:11 -0400 Subject: NFSv4: Fix open(O_TRUNC) and ftruncate() error handling If the file wasn't opened for writing, then truncate and ftruncate need to report the appropriate errors. Reported-by: Miklos Szeredi Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 4aaf031..8789210 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -1429,7 +1429,7 @@ static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry } open_flags = nd->intent.open.flags; - attr.ia_valid = 0; + attr.ia_valid = ATTR_OPEN; ctx = create_nfs_open_context(dentry, open_flags); res = ERR_CAST(ctx); @@ -1536,7 +1536,7 @@ static int nfs_open_revalidate(struct dentry *dentry, struct nameidata *nd) if (IS_ERR(ctx)) goto out; - attr.ia_valid = 0; + attr.ia_valid = ATTR_OPEN; if (openflags & O_TRUNC) { attr.ia_valid |= ATTR_SIZE; attr.ia_size = 0; diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index ba837d9..f875cf3 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -1954,10 +1954,19 @@ static int nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred, }; int err; do { - err = nfs4_handle_exception(server, - _nfs4_do_setattr(inode, cred, fattr, sattr, state), - &exception); + err = _nfs4_do_setattr(inode, cred, fattr, sattr, state); + switch (err) { + case -NFS4ERR_OPENMODE: + if (state && !(state->state & FMODE_WRITE)) { + err = -EBADF; + if (sattr->ia_valid & ATTR_OPEN) + err = -EACCES; + goto out; + } + } + err = nfs4_handle_exception(server, err, &exception); } while (exception.retry); +out: return err; } -- cgit v0.10.2 From 716af4abd6e6370226f567af50bfaca274515980 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 19 Apr 2012 10:00:19 +0300 Subject: ksz884x: don't copy too much in netdev_set_mac_address() MAX_ADDR_LEN is 32. ETH_ALEN is 6. mac->sa_data is a 14 byte array, so the memcpy() is doing a read past the end of the array. I asked about this on netdev and Ben Hutchings told me it's supposed to be copying ETH_ALEN bytes (thanks Ben). Signed-off-by: Dan Carpenter Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/micrel/ksz884x.c b/drivers/net/ethernet/micrel/ksz884x.c index ef723b1..eaf9ff0 100644 --- a/drivers/net/ethernet/micrel/ksz884x.c +++ b/drivers/net/ethernet/micrel/ksz884x.c @@ -5675,7 +5675,7 @@ static int netdev_set_mac_address(struct net_device *dev, void *addr) memcpy(hw->override_addr, mac->sa_data, ETH_ALEN); } - memcpy(dev->dev_addr, mac->sa_data, MAX_ADDR_LEN); + memcpy(dev->dev_addr, mac->sa_data, ETH_ALEN); interrupt = hw_block_intr(hw); -- cgit v0.10.2 From 3cd88f993e8b24855ed135b36bc6ed53dff38f08 Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 19 Apr 2012 19:35:10 +0100 Subject: Revert "ARM: 7359/2: smp_twd: Only wait for reprogramming on active cpus" This reverts commit 9f85550347f51c79a917b2aec04c90691c11e20a. Peter Zijlstra says: | Argh, how did that ever make it upstream, please drop. | | Russell, please make that go away upstream. | | Like I said, this is both completely the wrong way to solve, and you're | so not paying attention, see: | | 5fbd036b552f633abb394a319f7c62a5c86a9cd7 | 2baab4e90495ebc9826c93f79d74d6e60a828d24 | e3831edd59edf57ca11fc289f08961b20baf5146 | | What's even worse: | | git describe --contains 9f85550347f51c79a917b2aec04c90691c11e20a --match "v*" | v3.4-rc3~1^2~3 | | that nonsense got merged long after those other commits. Linus Walleij says: | My bad, was because the initial patch was submitted march 9th before | these fixes were merged: | http://marc.info/?l=linux-arm-kernel&m=133159655513844&w=2 | | It was pending for a while in Russell's patch tracker and I | rebased it to -rc2 without paying enough attention to recent | related scheduler fixes ... lesson learned. Signed-off-by: Russell King diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c index 5b150af..fef42b2 100644 --- a/arch/arm/kernel/smp_twd.c +++ b/arch/arm/kernel/smp_twd.c @@ -118,14 +118,10 @@ static int twd_cpufreq_transition(struct notifier_block *nb, * The twd clock events must be reprogrammed to account for the new * frequency. The timer is local to a cpu, so cross-call to the * changing cpu. - * - * Only wait for it to finish, if the cpu is active to avoid - * deadlock when cpu1 is spinning on while(!cpu_active(cpu1)) during - * booting of that cpu. */ if (state == CPUFREQ_POSTCHANGE || state == CPUFREQ_RESUMECHANGE) smp_call_function_single(freqs->cpu, twd_update_frequency, - NULL, cpu_active(freqs->cpu)); + NULL, 1); return NOTIFY_OK; } -- cgit v0.10.2 From 18311c5395ca4d0c3fefa406da87a9d16efaca46 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Wed, 18 Apr 2012 03:59:01 -0300 Subject: [media] V4L: mt9m032: fix compilation breakage Fix the following compilation failure: linux-2.6/drivers/media/video/mt9m032.c: In function '__mt9m032_get_pad_crop': linux-2.6/drivers/media/video/mt9m032.c:337: error: implicit declaration of function 'v4l2_subdev_get_try_crop' linux-2.6/drivers/media/video/mt9m032.c:337: warning: return makes pointer from integer without a cast linux-2.6/drivers/media/video/mt9m032.c: In function '__mt9m032_get_pad_format': linux-2.6/drivers/media/video/mt9m032.c:359: error: implicit declaration of function 'v4l2_subdev_get_try_format' linux-2.6/drivers/media/video/mt9m032.c:359: warning: return makes pointer from integer without a cast linux-2.6/drivers/media/video/mt9m032.c: In function 'mt9m032_probe': linux-2.6/drivers/media/video/mt9m032.c:767: error: 'struct v4l2_subdev' has no member named 'entity' linux-2.6/drivers/media/video/mt9m032.c:826: error: 'struct v4l2_subdev' has no member named 'entity' linux-2.6/drivers/media/video/mt9m032.c: In function 'mt9m032_remove': linux-2.6/drivers/media/video/mt9m032.c:842: error: 'struct v4l2_subdev' has no member named 'entity' make[4]: *** [drivers/media/video/mt9m032.o] Error 1 by adding a dependency on VIDEO_V4L2_SUBDEV_API. Signed-off-by: Guennadi Liakhovetski Acked-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig index f2479c5..ce1e7ba 100644 --- a/drivers/media/video/Kconfig +++ b/drivers/media/video/Kconfig @@ -492,7 +492,7 @@ config VIDEO_VS6624 config VIDEO_MT9M032 tristate "MT9M032 camera sensor support" - depends on I2C && VIDEO_V4L2 + depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API select VIDEO_APTINA_PLL ---help--- This driver supports MT9M032 camera sensors from Aptina, monochrome -- cgit v0.10.2 From 186bab1ce04f99153b7eeb3348438b654c24c24b Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Tue, 17 Apr 2012 14:35:49 -0400 Subject: xen/resume: Fix compile warnings. linux/drivers/xen/manage.c: In function 'do_suspend': linux/drivers/xen/manage.c:160:5: warning: 'si.cancelled' may be used uninitialized in this function Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c index 9e14ae6..412b96c 100644 --- a/drivers/xen/manage.c +++ b/drivers/xen/manage.c @@ -132,6 +132,7 @@ static void do_suspend(void) err = dpm_suspend_end(PMSG_FREEZE); if (err) { printk(KERN_ERR "dpm_suspend_end failed: %d\n", err); + si.cancelled = 0; goto out_resume; } -- cgit v0.10.2 From e631f578048e2afd8bfede2e9dc86aa4592def3a Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Mon, 16 Apr 2012 14:59:32 -0300 Subject: [media] xc5000: support 32MHz & 31.875MHz xtal using the 41.024.5 firmware Rather than loading firmware specific for the xtal frequency, just use the standard firmware and set the xtal frequency after firmware upload. The modified firmware will never be released, so we're better off merging this now rather than waiting for v3.5. Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/common/tuners/xc5000.c b/drivers/media/common/tuners/xc5000.c index 7f98984..eab2ea4 100644 --- a/drivers/media/common/tuners/xc5000.c +++ b/drivers/media/common/tuners/xc5000.c @@ -54,6 +54,7 @@ struct xc5000_priv { struct list_head hybrid_tuner_instance_list; u32 if_khz; + u32 xtal_khz; u32 freq_hz; u32 bandwidth; u8 video_standard; @@ -214,9 +215,9 @@ static const struct xc5000_fw_cfg xc5000a_1_6_114 = { .size = 12401, }; -static const struct xc5000_fw_cfg xc5000c_41_024_5_31875 = { - .name = "dvb-fe-xc5000c-41.024.5-31875.fw", - .size = 16503, +static const struct xc5000_fw_cfg xc5000c_41_024_5 = { + .name = "dvb-fe-xc5000c-41.024.5.fw", + .size = 16497, }; static inline const struct xc5000_fw_cfg *xc5000_assign_firmware(int chip_id) @@ -226,7 +227,7 @@ static inline const struct xc5000_fw_cfg *xc5000_assign_firmware(int chip_id) case XC5000A: return &xc5000a_1_6_114; case XC5000C: - return &xc5000c_41_024_5_31875; + return &xc5000c_41_024_5; } } @@ -572,6 +573,31 @@ static int xc_tune_channel(struct xc5000_priv *priv, u32 freq_hz, int mode) return found; } +static int xc_set_xtal(struct dvb_frontend *fe) +{ + struct xc5000_priv *priv = fe->tuner_priv; + int ret = XC_RESULT_SUCCESS; + + switch (priv->chip_id) { + default: + case XC5000A: + /* 32.000 MHz xtal is default */ + break; + case XC5000C: + switch (priv->xtal_khz) { + default: + case 32000: + /* 32.000 MHz xtal is default */ + break; + case 31875: + /* 31.875 MHz xtal configuration */ + ret = xc_write_reg(priv, 0x000f, 0x8081); + break; + } + break; + } + return ret; +} static int xc5000_fwupload(struct dvb_frontend *fe) { @@ -603,6 +629,8 @@ static int xc5000_fwupload(struct dvb_frontend *fe) } else { printk(KERN_INFO "xc5000: firmware uploading...\n"); ret = xc_load_i2c_sequence(fe, fw->data); + if (XC_RESULT_SUCCESS == ret) + ret = xc_set_xtal(fe); printk(KERN_INFO "xc5000: firmware upload complete...\n"); } @@ -1164,6 +1192,9 @@ struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe, priv->if_khz = cfg->if_khz; } + if (priv->xtal_khz == 0) + priv->xtal_khz = cfg->xtal_khz; + if (priv->radio_input == 0) priv->radio_input = cfg->radio_input; diff --git a/drivers/media/common/tuners/xc5000.h b/drivers/media/common/tuners/xc5000.h index 3396f8e..39a73bf 100644 --- a/drivers/media/common/tuners/xc5000.h +++ b/drivers/media/common/tuners/xc5000.h @@ -34,6 +34,7 @@ struct xc5000_config { u8 i2c_address; u32 if_khz; u8 radio_input; + u32 xtal_khz; int chip_id; }; -- cgit v0.10.2 From 7e5998aa74065d3ab31d17e667f40ffebf4b8425 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 17 Apr 2012 20:53:42 +0000 Subject: bnx2x: off by one in bnx2x_ets_e3b0_sp_pri_to_cos_set() The sp_pri_to_cos[] array size depends on the config but lets say it is BX_E3B0_MAX_NUM_COS_PORT0 and max_num_of_cos is also DCBX_E3B0_MAX_NUM_COS_PORT0. In the original code "pri == max_num_of_cos" was accepted but it is one past the end of the array. Also we used "pri" before capping it. It's a harmless read past the end of the array, but it would affect which error message gets printed. Signed-off-by: Dan Carpenter Acked-by: Eilon Greenstein Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index ad95324..64392ec 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -942,6 +942,12 @@ static int bnx2x_ets_e3b0_sp_pri_to_cos_set(const struct link_params *params, const u8 max_num_of_cos = (port) ? DCBX_E3B0_MAX_NUM_COS_PORT1 : DCBX_E3B0_MAX_NUM_COS_PORT0; + if (pri >= max_num_of_cos) { + DP(NETIF_MSG_LINK, "bnx2x_ets_e3b0_sp_pri_to_cos_set invalid " + "parameter Illegal strict priority\n"); + return -EINVAL; + } + if (sp_pri_to_cos[pri] != DCBX_INVALID_COS) { DP(NETIF_MSG_LINK, "bnx2x_ets_e3b0_sp_pri_to_cos_set invalid " "parameter There can't be two COS's with " @@ -949,12 +955,6 @@ static int bnx2x_ets_e3b0_sp_pri_to_cos_set(const struct link_params *params, return -EINVAL; } - if (pri > max_num_of_cos) { - DP(NETIF_MSG_LINK, "bnx2x_ets_e3b0_sp_pri_to_cos_set invalid " - "parameter Illegal strict priority\n"); - return -EINVAL; - } - sp_pri_to_cos[pri] = cos_entry; return 0; -- cgit v0.10.2 From 3bc17d10c9f8ac67eb474737d74894ef2e60d27c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Tue, 17 Apr 2012 09:38:23 +0000 Subject: net: qmi_wwan: support Sierra Wireless MC77xx devices in QMI mode MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The MC77xx devices can operate in two modes: "Direct IP" or "QMI", switchable using a password protected AT command. Both product ID and USB interface configuration will change when switched. The "sierra_net" driver supports the "Direct IP" mode. This driver supports the "QMI" mode. There are also multiple possible USB interface configurations in each mode, some providing more than one wwan interface. Like many other devices made for Windows, different interface types are identified using a static interface number. We define a Sierra specific interface whitelist to support this. Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index 552d24b..d316503b 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -365,6 +365,27 @@ static const struct driver_info qmi_wwan_force_int4 = { .data = BIT(4), /* interface whitelist bitmap */ }; +/* Sierra Wireless provide equally useless interface descriptors + * Devices in QMI mode can be switched between two different + * configurations: + * a) USB interface #8 is QMI/wwan + * b) USB interfaces #8, #19 and #20 are QMI/wwan + * + * Both configurations provide a number of other interfaces (serial++), + * some of which have the same endpoint configuration as we expect, so + * a whitelist or blacklist is necessary. + * + * FIXME: The below whitelist should include BIT(20). It does not + * because I cannot get it to work... + */ +static const struct driver_info qmi_wwan_sierra = { + .description = "Sierra Wireless wwan/QMI device", + .flags = FLAG_WWAN, + .bind = qmi_wwan_bind_gobi, + .unbind = qmi_wwan_unbind_shared, + .manage_power = qmi_wwan_manage_power, + .data = BIT(8) | BIT(19), /* interface whitelist bitmap */ +}; #define HUAWEI_VENDOR_ID 0x12D1 #define QMI_GOBI_DEVICE(vend, prod) \ @@ -445,6 +466,15 @@ static const struct usb_device_id products[] = { .bInterfaceProtocol = 0xff, .driver_info = (unsigned long)&qmi_wwan_force_int4, }, + { /* Sierra Wireless MC77xx in QMI mode */ + .match_flags = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x1199, + .idProduct = 0x68a2, + .bInterfaceClass = 0xff, + .bInterfaceSubClass = 0xff, + .bInterfaceProtocol = 0xff, + .driver_info = (unsigned long)&qmi_wwan_sierra, + }, {QMI_GOBI_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */ {QMI_GOBI_DEVICE(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */ {QMI_GOBI_DEVICE(0x03f0, 0x371d)}, /* HP un2430 Mobile Broadband Module */ -- cgit v0.10.2 From b9a6a23566960d0dd3f51e2e68b472cd61911078 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 18 Apr 2012 17:31:58 +0200 Subject: tick: Ensure that the broadcast device is initialized Santosh found another trap when we avoid to initialize the broadcast device in the switch_to_oneshot code. The broadcast device might be still in SHUTDOWN state when we actually need to use it. That obviously breaks, as set_next_event() is called on a shutdown device. This did not break on x86, but Suresh analyzed it: From the review, most likely on Sven's system we are force enabling the hpet using the pci quirk's method very late. And in this case, hpet_clockevent (which will be global_clock_event) handler can be null, specifically as this platform might not be using deeper c-states and using the reliable APIC timer. Prior to commit 'fa4da365bc7772c', that handler will be set to 'tick_handle_oneshot_broadcast' when we switch the broadcast timer to oneshot mode, even though we don't use it. Post commit 'fa4da365bc7772c', we stopped switching the broadcast mode to oneshot as this is not really needed and his platform's global_clock_event's handler will remain null. While on my SNB laptop, same is set to 'clockevents_handle_noop' because hpet gets enabled very early. (noop handler on my platform set when the early enabled hpet timer gets replaced by the lapic timer). But the commit 'fa4da365bc7772c' tracked the broadcast timer mode in the SW as oneshot, even though it didn't touch the HW timer. During resume however, tick_resume_broadcast() saw the SW broadcast mode as oneshot and actually programmed the broadcast device also into oneshot mode. So this triggered the null pointer de-reference after the hpet wraps around and depending on what the hpet counter is set to. On the normal platforms where hpet gets enabled early we should be seeing a spurious interrupt (in my SNB laptop I see one spurious interrupt after around 5 minutes ;) which is 32-bit hpet counter wraparound time), but that's a separate issue. Enforce the mode setting when trying to set an event. Reported-and-tested-by: Santosh Shilimkar Signed-off-by: Thomas Gleixner Acked-by: Suresh Siddha Cc: torvalds@linux-foundation.org Cc: svenjoac@gmx.de Cc: rjw@sisk.pl Link: http://lkml.kernel.org/r/alpine.LFD.2.02.1204181723350.2542@ionos diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c index 119aca5..029531f 100644 --- a/kernel/time/tick-broadcast.c +++ b/kernel/time/tick-broadcast.c @@ -373,6 +373,9 @@ static int tick_broadcast_set_event(ktime_t expires, int force) { struct clock_event_device *bc = tick_broadcast_device.evtdev; + if (bc->mode != CLOCK_EVT_MODE_ONESHOT) + clockevents_set_mode(bc, CLOCK_EVT_MODE_ONESHOT); + return clockevents_program_event(bc, expires, force); } -- cgit v0.10.2 From a6371f80230eaaafd7eef7efeedaa9509bdc982d Mon Sep 17 00:00:00 2001 From: Suresh Siddha Date: Wed, 18 Apr 2012 19:27:39 -0700 Subject: tick: Fix the spurious broadcast timer ticks after resume During resume, tick_resume_broadcast() programs the broadcast timer in oneshot mode unconditionally. On the platforms where broadcast timer is not really required, this will generate spurious broadcast timer ticks upon resume. For example, on the always running apic timer platforms with HPET, I see spurious hpet tick once every ~5minutes (which is the 32-bit hpet counter wraparound time). Similar to boot time, during resume make the oneshot mode setting of the broadcast clock event device conditional on the state of active broadcast users. Signed-off-by: Suresh Siddha Tested-by: Santosh Shilimkar Tested-by: svenjoac@gmx.de Cc: torvalds@linux-foundation.org Cc: rjw@sisk.pl Link: http://lkml.kernel.org/r/1334802459.28674.209.camel@sbsiddha-desk.sc.intel.com Signed-off-by: Thomas Gleixner diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c index 029531f..f113755 100644 --- a/kernel/time/tick-broadcast.c +++ b/kernel/time/tick-broadcast.c @@ -346,7 +346,8 @@ int tick_resume_broadcast(void) tick_get_broadcast_mask()); break; case TICKDEV_MODE_ONESHOT: - broadcast = tick_resume_broadcast_oneshot(bc); + if (!cpumask_empty(tick_get_broadcast_mask())) + broadcast = tick_resume_broadcast_oneshot(bc); break; } } -- cgit v0.10.2 From 996f73937cd85031da8dbcd3222a710cb762d428 Mon Sep 17 00:00:00 2001 From: Giuseppe CAVALLARO Date: Tue, 17 Apr 2012 21:16:40 +0000 Subject: icplus: fix interrupt for IC+ 101A/G and 1001LF This patch fixes and adds the irq handler for the IC+ 101A/G where we need to read the reg17 to clean the irq. Also remove the flag for the 1001LF where no interrupt can be used for this device. Signed-off-by: Giuseppe Cavallaro Signed-off-by: David S. Miller diff --git a/drivers/net/phy/icplus.c b/drivers/net/phy/icplus.c index f08c85a..5ac46f5 100644 --- a/drivers/net/phy/icplus.c +++ b/drivers/net/phy/icplus.c @@ -40,6 +40,7 @@ MODULE_LICENSE("GPL"); #define IP1001_PHASE_SEL_MASK 3 /* IP1001 RX/TXPHASE_SEL */ #define IP1001_APS_ON 11 /* IP1001 APS Mode bit */ #define IP101A_G_APS_ON 2 /* IP101A/G APS Mode bit */ +#define IP101A_G_IRQ_CONF_STATUS 0x11 /* Conf Info IRQ & Status Reg */ static int ip175c_config_init(struct phy_device *phydev) { @@ -185,6 +186,15 @@ static int ip175c_config_aneg(struct phy_device *phydev) return 0; } +static int ip101a_g_ack_interrupt(struct phy_device *phydev) +{ + int err = phy_read(phydev, IP101A_G_IRQ_CONF_STATUS); + if (err < 0) + return err; + + return 0; +} + static struct phy_driver ip175c_driver = { .phy_id = 0x02430d80, .name = "ICPlus IP175C", @@ -204,7 +214,6 @@ static struct phy_driver ip1001_driver = { .phy_id_mask = 0x0ffffff0, .features = PHY_GBIT_FEATURES | SUPPORTED_Pause | SUPPORTED_Asym_Pause, - .flags = PHY_HAS_INTERRUPT, .config_init = &ip1001_config_init, .config_aneg = &genphy_config_aneg, .read_status = &genphy_read_status, @@ -220,6 +229,7 @@ static struct phy_driver ip101a_g_driver = { .features = PHY_BASIC_FEATURES | SUPPORTED_Pause | SUPPORTED_Asym_Pause, .flags = PHY_HAS_INTERRUPT, + .ack_interrupt = ip101a_g_ack_interrupt, .config_init = &ip101a_g_config_init, .config_aneg = &genphy_config_aneg, .read_status = &genphy_read_status, -- cgit v0.10.2 From 3adadc08cc1e2cbcc15a640d639297ef5fcb17f5 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Wed, 18 Apr 2012 16:11:23 +0000 Subject: net ax25: Reorder ax25_exit to remove races. While reviewing the sysctl code in ax25 I spotted races in ax25_exit where it is possible to receive notifications and packets after already freeing up some of the data structures needed to process those notifications and updates. Call unregister_netdevice_notifier early so that the rest of the cleanup code does not need to deal with network devices. This takes advantage of my recent enhancement to unregister_netdevice_notifier to send unregister notifications of all network devices that are current registered. Move the unregistration for packet types, socket types and protocol types before we cleanup any of the ax25 data structures to remove the possibilities of other races. Signed-off-by: Eric W. Biederman Signed-off-by: David S. Miller diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c index 0906c19..9d9a6a3 100644 --- a/net/ax25/af_ax25.c +++ b/net/ax25/af_ax25.c @@ -2011,16 +2011,17 @@ static void __exit ax25_exit(void) proc_net_remove(&init_net, "ax25_route"); proc_net_remove(&init_net, "ax25"); proc_net_remove(&init_net, "ax25_calls"); - ax25_rt_free(); - ax25_uid_free(); - ax25_dev_free(); - ax25_unregister_sysctl(); unregister_netdevice_notifier(&ax25_dev_notifier); + ax25_unregister_sysctl(); dev_remove_pack(&ax25_packet_type); sock_unregister(PF_AX25); proto_unregister(&ax25_proto); + + ax25_rt_free(); + ax25_uid_free(); + ax25_dev_free(); } module_exit(ax25_exit); -- cgit v0.10.2 From 8a95bc8dfe06982fc2b8a0a2adda7baa2346a17b Mon Sep 17 00:00:00 2001 From: Timur Tabi Date: Wed, 30 Nov 2011 10:19:17 -0600 Subject: powerpc/85xx: don't call of_platform_bus_probe() twice Commit 46d026ac ("powerpc/85xx: consolidate of_platform_bus_probe calls") replaced platform-specific of_device_id tables with a single function that probes the most of the busses in 85xx device trees. If a specific platform needed additional busses probed, then it could call of_platform_bus_probe() again. Typically, the additional platform-specific busses are children of existing busses that have already been probed. of_platform_bus_probe() does not handle those child busses automatically. Unfortunately, this doesn't actually work. The second (platform-specific) call to of_platform_bus_probe() never finds any of the busses it's asked to find. To remedy this, the platform-specific of_device_id tables are eliminated, and their entries are merged into mpc85xx_common_ids[], so that all busses are probed at once. Signed-off-by: Timur Tabi Signed-off-by: Kumar Gala diff --git a/arch/powerpc/platforms/85xx/common.c b/arch/powerpc/platforms/85xx/common.c index 9fef530..67dac22 100644 --- a/arch/powerpc/platforms/85xx/common.c +++ b/arch/powerpc/platforms/85xx/common.c @@ -21,6 +21,12 @@ static struct of_device_id __initdata mpc85xx_common_ids[] = { { .compatible = "fsl,qe", }, { .compatible = "fsl,cpm2", }, { .compatible = "fsl,srio", }, + /* So that the DMA channel nodes can be probed individually: */ + { .compatible = "fsl,eloplus-dma", }, + /* For the PMC driver */ + { .compatible = "fsl,mpc8548-guts", }, + /* Probably unnecessary? */ + { .compatible = "gpio-leds", }, {}, }; diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c index 9a6f044..d208ebc 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c @@ -399,12 +399,6 @@ static int __init board_fixups(void) machine_arch_initcall(mpc8568_mds, board_fixups); machine_arch_initcall(mpc8569_mds, board_fixups); -static struct of_device_id mpc85xx_ids[] = { - { .compatible = "fsl,mpc8548-guts", }, - { .compatible = "gpio-leds", }, - {}, -}; - static int __init mpc85xx_publish_devices(void) { if (machine_is(mpc8568_mds)) @@ -412,10 +406,7 @@ static int __init mpc85xx_publish_devices(void) if (machine_is(mpc8569_mds)) simple_gpiochip_init("fsl,mpc8569mds-bcsr-gpio"); - mpc85xx_common_publish_devices(); - of_platform_bus_probe(NULL, mpc85xx_ids, NULL); - - return 0; + return mpc85xx_common_publish_devices(); } machine_device_initcall(mpc8568_mds, mpc85xx_publish_devices); diff --git a/arch/powerpc/platforms/85xx/p1022_ds.c b/arch/powerpc/platforms/85xx/p1022_ds.c index e74b7cd..f700c81 100644 --- a/arch/powerpc/platforms/85xx/p1022_ds.c +++ b/arch/powerpc/platforms/85xx/p1022_ds.c @@ -460,18 +460,7 @@ static void __init p1022_ds_setup_arch(void) pr_info("Freescale P1022 DS reference board\n"); } -static struct of_device_id __initdata p1022_ds_ids[] = { - /* So that the DMA channel nodes can be probed individually: */ - { .compatible = "fsl,eloplus-dma", }, - {}, -}; - -static int __init p1022_ds_publish_devices(void) -{ - mpc85xx_common_publish_devices(); - return of_platform_bus_probe(NULL, p1022_ds_ids, NULL); -} -machine_device_initcall(p1022_ds, p1022_ds_publish_devices); +machine_device_initcall(p1022_ds, mpc85xx_common_publish_devices); machine_arch_initcall(p1022_ds, swiotlb_setup_bus_notifier); -- cgit v0.10.2 From eda713e219c9a7d02b8263ab3fba44092e919b07 Mon Sep 17 00:00:00 2001 From: Baruch Siach Date: Thu, 19 Apr 2012 09:32:06 +0300 Subject: powerpc: fix build when CONFIG_BOOKE_WDT is enabled Commit ae3a197e (Disintegrate asm/system.h for PowerPC) broke build of assembly files when CONFIG_BOOKE_WDT is enabled as follows: AS arch/powerpc/lib/string.o /home/baruch/git/stable/arch/powerpc/include/asm/reg_booke.h: Assembler messages: /home/baruch/git/stable/arch/powerpc/include/asm/reg_booke.h:19: Error: Unrecognized opcode: `extern' /home/baruch/git/stable/arch/powerpc/include/asm/reg_booke.h:20: Error: Unrecognized opcode: `extern' Since setup_32.c is the only user of the booke_wdt configuration variables, move the declarations there. Cc: David Howells Signed-off-by: Baruch Siach Signed-off-by: Kumar Gala diff --git a/arch/powerpc/include/asm/reg_booke.h b/arch/powerpc/include/asm/reg_booke.h index b86faa9..8a97aa7 100644 --- a/arch/powerpc/include/asm/reg_booke.h +++ b/arch/powerpc/include/asm/reg_booke.h @@ -15,11 +15,6 @@ #ifndef __ASM_POWERPC_REG_BOOKE_H__ #define __ASM_POWERPC_REG_BOOKE_H__ -#ifdef CONFIG_BOOKE_WDT -extern u32 booke_wdt_enabled; -extern u32 booke_wdt_period; -#endif /* CONFIG_BOOKE_WDT */ - /* Machine State Register (MSR) Fields */ #define MSR_GS (1<<28) /* Guest state */ #define MSR_UCLE (1<<26) /* User-mode cache lock enable */ diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c index 9825f29..ec8a53f 100644 --- a/arch/powerpc/kernel/setup_32.c +++ b/arch/powerpc/kernel/setup_32.c @@ -150,6 +150,9 @@ notrace void __init machine_init(u64 dt_ptr) } #ifdef CONFIG_BOOKE_WDT +extern u32 booke_wdt_enabled; +extern u32 booke_wdt_period; + /* Checks wdt=x and wdt_period=xx command-line option */ notrace int __init early_parse_wdt(char *p) { -- cgit v0.10.2 From bdce27c7f7bc7cf5c3a264bab9de056bd9cb0c9d Mon Sep 17 00:00:00 2001 From: Mingkai Hu Date: Mon, 16 Apr 2012 10:05:05 +0800 Subject: powerpc/mpic_msgr: fix compile error when SMP disabled In file included from arch/powerpc/sysdev/mpic_msgr.c:20:0: ~/arch/powerpc/include/asm/mpic_msgr.h: In function 'mpic_msgr_set_destination': ~/arch/powerpc/include/asm/mpic_msgr.h:117:2: error: implicit declaration of function 'get_hard_smp_processor_id' make[1]: *** [arch/powerpc/sysdev/mpic_msgr.o] Error 1 Signed-off-by: Mingkai Hu Signed-off-by: Kumar Gala diff --git a/arch/powerpc/include/asm/mpic_msgr.h b/arch/powerpc/include/asm/mpic_msgr.h index 3ec37dc..326d33c 100644 --- a/arch/powerpc/include/asm/mpic_msgr.h +++ b/arch/powerpc/include/asm/mpic_msgr.h @@ -13,6 +13,7 @@ #include #include +#include struct mpic_msgr { u32 __iomem *base; -- cgit v0.10.2 From e0a5a6c38190a5016bcb0f1267324a19b846a35a Mon Sep 17 00:00:00 2001 From: Mingkai Hu Date: Mon, 16 Apr 2012 10:05:06 +0800 Subject: powerpc/mpic_msgr: add lock for MPIC message global variable Also fix issue of accessing invalid msgr pointer issue. The local msgr pointer in fucntion mpic_msgr_get will be accessed before getting a valid address which will cause kernel crash. Signed-off-by: Mingkai Hu Signed-off-by: Kumar Gala diff --git a/arch/powerpc/sysdev/mpic_msgr.c b/arch/powerpc/sysdev/mpic_msgr.c index 6e7fa38..dc1cfe3 100644 --- a/arch/powerpc/sysdev/mpic_msgr.c +++ b/arch/powerpc/sysdev/mpic_msgr.c @@ -27,6 +27,7 @@ static struct mpic_msgr **mpic_msgrs; static unsigned int mpic_msgr_count; +static DEFINE_RAW_SPINLOCK(msgrs_lock); static inline void _mpic_msgr_mer_write(struct mpic_msgr *msgr, u32 value) { @@ -56,12 +57,11 @@ struct mpic_msgr *mpic_msgr_get(unsigned int reg_num) if (reg_num >= mpic_msgr_count) return ERR_PTR(-ENODEV); - raw_spin_lock_irqsave(&msgr->lock, flags); - if (mpic_msgrs[reg_num]->in_use == MSGR_FREE) { - msgr = mpic_msgrs[reg_num]; + raw_spin_lock_irqsave(&msgrs_lock, flags); + msgr = mpic_msgrs[reg_num]; + if (msgr->in_use == MSGR_FREE) msgr->in_use = MSGR_INUSE; - } - raw_spin_unlock_irqrestore(&msgr->lock, flags); + raw_spin_unlock_irqrestore(&msgrs_lock, flags); return msgr; } -- cgit v0.10.2 From dea58bd1cab8f6687a784cdacca242b6cac95ede Mon Sep 17 00:00:00 2001 From: Mingkai Hu Date: Mon, 16 Apr 2012 10:05:07 +0800 Subject: powerpc/mpic_msgr: fix offset error when setting mer register Signed-off-by: Mingkai Hu Signed-off-by: Kumar Gala diff --git a/arch/powerpc/sysdev/mpic_msgr.c b/arch/powerpc/sysdev/mpic_msgr.c index dc1cfe3..483d8fa 100644 --- a/arch/powerpc/sysdev/mpic_msgr.c +++ b/arch/powerpc/sysdev/mpic_msgr.c @@ -228,7 +228,7 @@ static __devinit int mpic_msgr_probe(struct platform_device *dev) reg_number = block_number * MPIC_MSGR_REGISTERS_PER_BLOCK + i; msgr->base = msgr_block_addr + i * MPIC_MSGR_STRIDE; - msgr->mer = msgr->base + MPIC_MSGR_MER_OFFSET; + msgr->mer = (u32 *)((u8 *)msgr->base + MPIC_MSGR_MER_OFFSET); msgr->in_use = MSGR_FREE; msgr->num = i; raw_spin_lock_init(&msgr->lock); -- cgit v0.10.2 From 4351f30a35b8c6a6b6d4d36e5c2dc8ec0262b2ca Mon Sep 17 00:00:00 2001 From: Mingkai Hu Date: Mon, 16 Apr 2012 10:05:08 +0800 Subject: powerpc/mpc85xx: add MPIC message dts node Signed-off-by: Mingkai Hu Signed-off-by: Kumar Gala diff --git a/arch/powerpc/boot/dts/fsl/pq3-mpic-message-B.dtsi b/arch/powerpc/boot/dts/fsl/pq3-mpic-message-B.dtsi new file mode 100644 index 0000000..1cf0b77 --- /dev/null +++ b/arch/powerpc/boot/dts/fsl/pq3-mpic-message-B.dtsi @@ -0,0 +1,43 @@ +/* + * PQ3 MPIC Message (Group B) device tree stub [ controller @ offset 0x42400 ] + * + * Copyright 2012 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +message@42400 { + compatible = "fsl,mpic-v3.1-msgr"; + reg = <0x42400 0x200>; + interrupts = < + 0xb4 2 0 0 + 0xb5 2 0 0 + 0xb6 2 0 0 + 0xb7 2 0 0>; +}; diff --git a/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi b/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi index fdedf7b..71c30eb 100644 --- a/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi +++ b/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi @@ -53,6 +53,16 @@ timer@41100 { 3 0 3 0>; }; +message@41400 { + compatible = "fsl,mpic-v3.1-msgr"; + reg = <0x41400 0x200>; + interrupts = < + 0xb0 2 0 0 + 0xb1 2 0 0 + 0xb2 2 0 0 + 0xb3 2 0 0>; +}; + msi@41600 { compatible = "fsl,mpic-msi"; reg = <0x41600 0x80>; -- cgit v0.10.2 From db4c75cbebd7e5910cd3bcb6790272fcc3042857 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Thu, 19 Apr 2012 10:31:47 -0400 Subject: tracing: Fix stacktrace of latency tracers (irqsoff and friends) While debugging a latency with someone on IRC (mirage335) on #linux-rt (OFTC), we discovered that the stacktrace output of the latency tracers (preemptirqsoff) was empty. This bug was caused by the creation of the dynamic length stack trace again (like commit 12b5da3 "tracing: Fix ent_size in trace output" was). This bug is caused by the latency tracers requiring the next event to determine the time between the current event and the next. But by grabbing the next event, the iter->ent_size is set to the next event instead of the current one. As the stacktrace event is the last event, this makes the ent_size zero and causes nothing to be printed for the stack trace. The dynamic stacktrace uses the ent_size to determine how much of the stack can be printed. The ent_size of zero means no stack. The simple fix is to save the iter->ent_size before finding the next event. Note, mirage335 asked to remain anonymous from LKML and git, so I will not add the Reported-by and Tested-by tags, even though he did report the issue and tested the fix. Cc: stable@vger.kernel.org # 3.1+ Signed-off-by: Steven Rostedt diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c index 859fae6b..df611a0 100644 --- a/kernel/trace/trace_output.c +++ b/kernel/trace/trace_output.c @@ -652,6 +652,8 @@ int trace_print_lat_context(struct trace_iterator *iter) { u64 next_ts; int ret; + /* trace_find_next_entry will reset ent_size */ + int ent_size = iter->ent_size; struct trace_seq *s = &iter->seq; struct trace_entry *entry = iter->ent, *next_entry = trace_find_next_entry(iter, NULL, @@ -660,6 +662,9 @@ int trace_print_lat_context(struct trace_iterator *iter) unsigned long abs_usecs = ns2usecs(iter->ts - iter->tr->time_start); unsigned long rel_usecs; + /* Restore the original ent_size */ + iter->ent_size = ent_size; + if (!next_entry) next_ts = iter->ts; rel_usecs = ns2usecs(next_ts - iter->ts); -- cgit v0.10.2 From d3a7b83f865b46bb7b5e1ed18a129ce1af349db4 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Thu, 19 Apr 2012 18:12:40 +0200 Subject: drivers/tty/amiserial.c: add missing tty_unlock tty_unlock is used on all other exits from the function. Signed-off-by: Julia Lawall Acked-by: Jiri Slaby Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c index 24145c3..6cc4358 100644 --- a/drivers/tty/amiserial.c +++ b/drivers/tty/amiserial.c @@ -1073,8 +1073,10 @@ static int set_serial_info(struct tty_struct *tty, struct serial_state *state, (new_serial.close_delay != port->close_delay) || (new_serial.xmit_fifo_size != state->xmit_fifo_size) || ((new_serial.flags & ~ASYNC_USR_MASK) != - (port->flags & ~ASYNC_USR_MASK))) + (port->flags & ~ASYNC_USR_MASK))) { + tty_unlock(); return -EPERM; + } port->flags = ((port->flags & ~ASYNC_USR_MASK) | (new_serial.flags & ASYNC_USR_MASK)); state->custom_divisor = new_serial.custom_divisor; -- cgit v0.10.2 From 3af9d8f227a31e25b3110ef175d105798fc147a6 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Fri, 13 Apr 2012 17:16:59 -0400 Subject: cifs: fix offset handling in cifs_iovec_write In the recent update of the cifs_iovec_write code to use async writes, the handling of the file position was broken. That patch added a local "offset" variable to handle the offset, and then only updated the original "*poffset" before exiting. Unfortunately, it copied off the original offset from the beginning, instead of doing so after generic_write_checks had been called. Fix this by moving the initialization of "offset" after that in the function. Signed-off-by: Jeff Layton Signed-off-by: Steve French diff --git a/fs/cifs/file.c b/fs/cifs/file.c index fae765d..81725e9 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -2178,7 +2178,7 @@ cifs_iovec_write(struct file *file, const struct iovec *iov, unsigned long nr_pages, i; size_t copied, len, cur_len; ssize_t total_written = 0; - loff_t offset = *poffset; + loff_t offset; struct iov_iter it; struct cifsFileInfo *open_file; struct cifs_tcon *tcon; @@ -2200,6 +2200,7 @@ cifs_iovec_write(struct file *file, const struct iovec *iov, cifs_sb = CIFS_SB(file->f_path.dentry->d_sb); open_file = file->private_data; tcon = tlink_tcon(open_file->tlink); + offset = *poffset; if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_RWPIDFORWARD) pid = open_file->pid; -- cgit v0.10.2 From a102962ffd45fe8bac68ea6d9f72d3ed19dc44e1 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sat, 31 Mar 2012 17:44:53 +0100 Subject: ARM: ux300: Fix unimplementable regulation constraints It doesn't make sense to grant permission to change the status of a regulator that is also set as always on and similarly it doesn't make sense to allow a driver to change the voltage of a regulator which can only be set to a single voltage. Signed-off-by: Mark Brown Signed-off-by: Linus Walleij diff --git a/arch/arm/mach-u300/i2c.c b/arch/arm/mach-u300/i2c.c index a38f802..cb04bd6 100644 --- a/arch/arm/mach-u300/i2c.c +++ b/arch/arm/mach-u300/i2c.c @@ -146,9 +146,6 @@ static struct ab3100_platform_data ab3100_plf_data = { .min_uV = 1800000, .max_uV = 1800000, .valid_modes_mask = REGULATOR_MODE_NORMAL, - .valid_ops_mask = - REGULATOR_CHANGE_VOLTAGE | - REGULATOR_CHANGE_STATUS, .always_on = 1, .boot_on = 1, }, @@ -160,9 +157,6 @@ static struct ab3100_platform_data ab3100_plf_data = { .min_uV = 2500000, .max_uV = 2500000, .valid_modes_mask = REGULATOR_MODE_NORMAL, - .valid_ops_mask = - REGULATOR_CHANGE_VOLTAGE | - REGULATOR_CHANGE_STATUS, .always_on = 1, .boot_on = 1, }, @@ -230,8 +224,7 @@ static struct ab3100_platform_data ab3100_plf_data = { .max_uV = 1800000, .valid_modes_mask = REGULATOR_MODE_NORMAL, .valid_ops_mask = - REGULATOR_CHANGE_VOLTAGE | - REGULATOR_CHANGE_STATUS, + REGULATOR_CHANGE_VOLTAGE, .always_on = 1, .boot_on = 1, }, -- cgit v0.10.2 From 1344500e2d79d09db81f748984697cbdd6b02279 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Wed, 18 Apr 2012 15:29:58 +0200 Subject: ARM: u300: bump all IRQ numbers by one Since the VIC was converted to use generic IRQ domains IRQ 0 is silently ignored. This IRQ is used on the U300 so we're missing it now. Bump all IRQ numbers by one since they are now decoupled from the hardware IRQ numbers. Cc: Grant Likely Cc: Rob Herring Signed-off-by: Linus Walleij diff --git a/arch/arm/mach-u300/core.c b/arch/arm/mach-u300/core.c index 1621ad0..3333974 100644 --- a/arch/arm/mach-u300/core.c +++ b/arch/arm/mach-u300/core.c @@ -1667,8 +1667,10 @@ void __init u300_init_irq(void) for (i = 0; i < U300_VIC_IRQS_END; i++) set_bit(i, (unsigned long *) &mask[0]); - vic_init((void __iomem *) U300_INTCON0_VBASE, 0, mask[0], mask[0]); - vic_init((void __iomem *) U300_INTCON1_VBASE, 32, mask[1], mask[1]); + vic_init((void __iomem *) U300_INTCON0_VBASE, IRQ_U300_INTCON0_START, + mask[0], mask[0]); + vic_init((void __iomem *) U300_INTCON1_VBASE, IRQ_U300_INTCON1_START, + mask[1], mask[1]); } diff --git a/arch/arm/mach-u300/include/mach/irqs.h b/arch/arm/mach-u300/include/mach/irqs.h index ee78a26..ec09c1e 100644 --- a/arch/arm/mach-u300/include/mach/irqs.h +++ b/arch/arm/mach-u300/include/mach/irqs.h @@ -12,101 +12,101 @@ #ifndef __MACH_IRQS_H #define __MACH_IRQS_H -#define IRQ_U300_INTCON0_START 0 -#define IRQ_U300_INTCON1_START 32 +#define IRQ_U300_INTCON0_START 1 +#define IRQ_U300_INTCON1_START 33 /* These are on INTCON0 - 30 lines */ -#define IRQ_U300_IRQ0_EXT 0 -#define IRQ_U300_IRQ1_EXT 1 -#define IRQ_U300_DMA 2 -#define IRQ_U300_VIDEO_ENC_0 3 -#define IRQ_U300_VIDEO_ENC_1 4 -#define IRQ_U300_AAIF_RX 5 -#define IRQ_U300_AAIF_TX 6 -#define IRQ_U300_AAIF_VGPIO 7 -#define IRQ_U300_AAIF_WAKEUP 8 -#define IRQ_U300_PCM_I2S0_FRAME 9 -#define IRQ_U300_PCM_I2S0_FIFO 10 -#define IRQ_U300_PCM_I2S1_FRAME 11 -#define IRQ_U300_PCM_I2S1_FIFO 12 -#define IRQ_U300_XGAM_GAMCON 13 -#define IRQ_U300_XGAM_CDI 14 -#define IRQ_U300_XGAM_CDICON 15 +#define IRQ_U300_IRQ0_EXT 1 +#define IRQ_U300_IRQ1_EXT 2 +#define IRQ_U300_DMA 3 +#define IRQ_U300_VIDEO_ENC_0 4 +#define IRQ_U300_VIDEO_ENC_1 5 +#define IRQ_U300_AAIF_RX 6 +#define IRQ_U300_AAIF_TX 7 +#define IRQ_U300_AAIF_VGPIO 8 +#define IRQ_U300_AAIF_WAKEUP 9 +#define IRQ_U300_PCM_I2S0_FRAME 10 +#define IRQ_U300_PCM_I2S0_FIFO 11 +#define IRQ_U300_PCM_I2S1_FRAME 12 +#define IRQ_U300_PCM_I2S1_FIFO 13 +#define IRQ_U300_XGAM_GAMCON 14 +#define IRQ_U300_XGAM_CDI 15 +#define IRQ_U300_XGAM_CDICON 16 #if defined(CONFIG_MACH_U300_BS2X) || defined(CONFIG_MACH_U300_BS330) /* MMIACC not used on the DB3210 or DB3350 chips */ -#define IRQ_U300_XGAM_MMIACC 16 +#define IRQ_U300_XGAM_MMIACC 17 #endif -#define IRQ_U300_XGAM_PDI 17 -#define IRQ_U300_XGAM_PDICON 18 -#define IRQ_U300_XGAM_GAMEACC 19 -#define IRQ_U300_XGAM_MCIDCT 20 -#define IRQ_U300_APEX 21 -#define IRQ_U300_UART0 22 -#define IRQ_U300_SPI 23 -#define IRQ_U300_TIMER_APP_OS 24 -#define IRQ_U300_TIMER_APP_DD 25 -#define IRQ_U300_TIMER_APP_GP1 26 -#define IRQ_U300_TIMER_APP_GP2 27 -#define IRQ_U300_TIMER_OS 28 -#define IRQ_U300_TIMER_MS 29 -#define IRQ_U300_KEYPAD_KEYBF 30 -#define IRQ_U300_KEYPAD_KEYBR 31 +#define IRQ_U300_XGAM_PDI 18 +#define IRQ_U300_XGAM_PDICON 19 +#define IRQ_U300_XGAM_GAMEACC 20 +#define IRQ_U300_XGAM_MCIDCT 21 +#define IRQ_U300_APEX 22 +#define IRQ_U300_UART0 23 +#define IRQ_U300_SPI 24 +#define IRQ_U300_TIMER_APP_OS 25 +#define IRQ_U300_TIMER_APP_DD 26 +#define IRQ_U300_TIMER_APP_GP1 27 +#define IRQ_U300_TIMER_APP_GP2 28 +#define IRQ_U300_TIMER_OS 29 +#define IRQ_U300_TIMER_MS 30 +#define IRQ_U300_KEYPAD_KEYBF 31 +#define IRQ_U300_KEYPAD_KEYBR 32 /* These are on INTCON1 - 32 lines */ -#define IRQ_U300_GPIO_PORT0 32 -#define IRQ_U300_GPIO_PORT1 33 -#define IRQ_U300_GPIO_PORT2 34 +#define IRQ_U300_GPIO_PORT0 33 +#define IRQ_U300_GPIO_PORT1 34 +#define IRQ_U300_GPIO_PORT2 35 #if defined(CONFIG_MACH_U300_BS2X) || defined(CONFIG_MACH_U300_BS330) || \ defined(CONFIG_MACH_U300_BS335) /* These are for DB3150, DB3200 and DB3350 */ -#define IRQ_U300_WDOG 35 -#define IRQ_U300_EVHIST 36 -#define IRQ_U300_MSPRO 37 -#define IRQ_U300_MMCSD_MCIINTR0 38 -#define IRQ_U300_MMCSD_MCIINTR1 39 -#define IRQ_U300_I2C0 40 -#define IRQ_U300_I2C1 41 -#define IRQ_U300_RTC 42 -#define IRQ_U300_NFIF 43 -#define IRQ_U300_NFIF2 44 +#define IRQ_U300_WDOG 36 +#define IRQ_U300_EVHIST 37 +#define IRQ_U300_MSPRO 38 +#define IRQ_U300_MMCSD_MCIINTR0 39 +#define IRQ_U300_MMCSD_MCIINTR1 40 +#define IRQ_U300_I2C0 41 +#define IRQ_U300_I2C1 42 +#define IRQ_U300_RTC 43 +#define IRQ_U300_NFIF 44 +#define IRQ_U300_NFIF2 45 #endif /* DB3150 and DB3200 have only 45 IRQs */ #if defined(CONFIG_MACH_U300_BS2X) || defined(CONFIG_MACH_U300_BS330) -#define U300_VIC_IRQS_END 45 +#define U300_VIC_IRQS_END 46 #endif /* The DB3350-specific interrupt lines */ #ifdef CONFIG_MACH_U300_BS335 -#define IRQ_U300_ISP_F0 45 -#define IRQ_U300_ISP_F1 46 -#define IRQ_U300_ISP_F2 47 -#define IRQ_U300_ISP_F3 48 -#define IRQ_U300_ISP_F4 49 -#define IRQ_U300_GPIO_PORT3 50 -#define IRQ_U300_SYSCON_PLL_LOCK 51 -#define IRQ_U300_UART1 52 -#define IRQ_U300_GPIO_PORT4 53 -#define IRQ_U300_GPIO_PORT5 54 -#define IRQ_U300_GPIO_PORT6 55 -#define U300_VIC_IRQS_END 56 +#define IRQ_U300_ISP_F0 46 +#define IRQ_U300_ISP_F1 47 +#define IRQ_U300_ISP_F2 48 +#define IRQ_U300_ISP_F3 49 +#define IRQ_U300_ISP_F4 50 +#define IRQ_U300_GPIO_PORT3 51 +#define IRQ_U300_SYSCON_PLL_LOCK 52 +#define IRQ_U300_UART1 53 +#define IRQ_U300_GPIO_PORT4 54 +#define IRQ_U300_GPIO_PORT5 55 +#define IRQ_U300_GPIO_PORT6 56 +#define U300_VIC_IRQS_END 57 #endif /* The DB3210-specific interrupt lines */ #ifdef CONFIG_MACH_U300_BS365 -#define IRQ_U300_GPIO_PORT3 35 -#define IRQ_U300_GPIO_PORT4 36 -#define IRQ_U300_WDOG 37 -#define IRQ_U300_EVHIST 38 -#define IRQ_U300_MSPRO 39 -#define IRQ_U300_MMCSD_MCIINTR0 40 -#define IRQ_U300_MMCSD_MCIINTR1 41 -#define IRQ_U300_I2C0 42 -#define IRQ_U300_I2C1 43 -#define IRQ_U300_RTC 44 -#define IRQ_U300_NFIF 45 -#define IRQ_U300_NFIF2 46 -#define IRQ_U300_SYSCON_PLL_LOCK 47 -#define U300_VIC_IRQS_END 48 +#define IRQ_U300_GPIO_PORT3 36 +#define IRQ_U300_GPIO_PORT4 37 +#define IRQ_U300_WDOG 38 +#define IRQ_U300_EVHIST 39 +#define IRQ_U300_MSPRO 40 +#define IRQ_U300_MMCSD_MCIINTR0 41 +#define IRQ_U300_MMCSD_MCIINTR1 42 +#define IRQ_U300_I2C0 43 +#define IRQ_U300_I2C1 44 +#define IRQ_U300_RTC 45 +#define IRQ_U300_NFIF 46 +#define IRQ_U300_NFIF2 47 +#define IRQ_U300_SYSCON_PLL_LOCK 48 +#define U300_VIC_IRQS_END 49 #endif /* Maximum 8*7 GPIO lines */ @@ -117,6 +117,6 @@ #define IRQ_U300_GPIO_END (U300_VIC_IRQS_END) #endif -#define NR_IRQS (IRQ_U300_GPIO_END) +#define NR_IRQS (IRQ_U300_GPIO_END - IRQ_U300_INTCON0_START) #endif -- cgit v0.10.2 From 5ac57550f279c3d991ef0b398681bcaca18169f7 Mon Sep 17 00:00:00 2001 From: David Henningsson Date: Fri, 20 Apr 2012 10:01:46 +0200 Subject: ALSA: HDA: Add external mic quirk for Asus Zenbook UX31E According to the reporter, external mic starts to work if the laptop-dmic model is used. According to BIOS pin config, all pins are consistent with the alc269vb_laptop_dmic fixup, except for the external mic, which is not present. Cc: stable@kernel.org BugLink: https://bugs.launchpad.net/bugs/950490 Signed-off-by: David Henningsson Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index e65e354..818f90b 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -6109,6 +6109,7 @@ static const struct alc_fixup alc269_fixups[] = { static const struct snd_pci_quirk alc269_fixup_tbl[] = { SND_PCI_QUIRK(0x103c, 0x1586, "HP", ALC269_FIXUP_MIC2_MUTE_LED), + SND_PCI_QUIRK(0x1043, 0x1427, "Asus Zenbook UX31E", ALC269VB_FIXUP_DMIC), SND_PCI_QUIRK(0x1043, 0x1a13, "Asus G73Jw", ALC269_FIXUP_ASUS_G73JW), SND_PCI_QUIRK(0x1043, 0x16e3, "ASUS UX50", ALC269_FIXUP_STEREO_DMIC), SND_PCI_QUIRK(0x1043, 0x831a, "ASUS P901", ALC269_FIXUP_STEREO_DMIC), -- cgit v0.10.2 From 60f2951e3ad9b833bc12e2ea7652be2611771792 Mon Sep 17 00:00:00 2001 From: Vinod Koul Date: Fri, 20 Apr 2012 15:28:07 +0530 Subject: dmaengine: imx-dma: dont complete descriptor for cyclic dma the cookie updates completed the cyclic dma descriptor wrongly. This caused the BUG_ON to be hit as submit is called for completed descriptor Fix this by not marking the cyclic descriptor as complete Tested-by: Javier Martin Signed-off-by: Vinod Koul diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c index a45b5d2..bb787d8 100644 --- a/drivers/dma/imx-dma.c +++ b/drivers/dma/imx-dma.c @@ -571,11 +571,14 @@ static void imxdma_tasklet(unsigned long data) if (desc->desc.callback) desc->desc.callback(desc->desc.callback_param); - dma_cookie_complete(&desc->desc); - - /* If we are dealing with a cyclic descriptor keep it on ld_active */ + /* If we are dealing with a cyclic descriptor keep it on ld_active + * and dont mark the descripor as complete. + * Only in non-cyclic cases it would be marked as complete + */ if (imxdma_chan_is_doing_cyclic(imxdmac)) goto out; + else + dma_cookie_complete(&desc->desc); /* Free 2D slot if it was an interleaved transfer */ if (imxdmac->enabled_2d) { -- cgit v0.10.2 From d04525ed0323709711277563a2c76e446a017423 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Wed, 11 Apr 2012 13:29:31 +0800 Subject: dma: mxs-dma: enable channel in device_issue_pending call Enable channel in device_issue_pending call, so that the order between cookie assignment and channel enabling can be ensured naturally. It fixes the mxs gpmi-nand breakage which is caused by the incorrect order of cookie assigning and channel enabling. Suggested-by: Russell King Signed-off-by: Shawn Guo Tested-by: Huang Shijie Tested-by Signed-off-by: Vinod Koul diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c index c81ef7e..655d4ce 100644 --- a/drivers/dma/mxs-dma.c +++ b/drivers/dma/mxs-dma.c @@ -201,10 +201,6 @@ static struct mxs_dma_chan *to_mxs_dma_chan(struct dma_chan *chan) static dma_cookie_t mxs_dma_tx_submit(struct dma_async_tx_descriptor *tx) { - struct mxs_dma_chan *mxs_chan = to_mxs_dma_chan(tx->chan); - - mxs_dma_enable_chan(mxs_chan); - return dma_cookie_assign(tx); } @@ -558,9 +554,9 @@ static enum dma_status mxs_dma_tx_status(struct dma_chan *chan, static void mxs_dma_issue_pending(struct dma_chan *chan) { - /* - * Nothing to do. We only have a single descriptor. - */ + struct mxs_dma_chan *mxs_chan = to_mxs_dma_chan(chan); + + mxs_dma_enable_chan(mxs_chan); } static int __init mxs_dma_init(struct mxs_dma_engine *mxs_dma) diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c index b0f2ef9..e3f5af9 100644 --- a/drivers/mmc/host/mxs-mmc.c +++ b/drivers/mmc/host/mxs-mmc.c @@ -363,6 +363,7 @@ static void mxs_mmc_bc(struct mxs_mmc_host *host) goto out; dmaengine_submit(desc); + dma_async_issue_pending(host->dmach); return; out: @@ -403,6 +404,7 @@ static void mxs_mmc_ac(struct mxs_mmc_host *host) goto out; dmaengine_submit(desc); + dma_async_issue_pending(host->dmach); return; out: @@ -531,6 +533,7 @@ static void mxs_mmc_adtc(struct mxs_mmc_host *host) goto out; dmaengine_submit(desc); + dma_async_issue_pending(host->dmach); return; out: dev_warn(mmc_dev(host->mmc), diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c index 75b1dde..9ec51ce 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -266,6 +266,7 @@ int start_dma_without_bch_irq(struct gpmi_nand_data *this, desc->callback = dma_irq_callback; desc->callback_param = this; dmaengine_submit(desc); + dma_async_issue_pending(get_dma_chan(this)); /* Wait for the interrupt from the DMA block. */ err = wait_for_completion_timeout(dma_c, msecs_to_jiffies(1000)); -- cgit v0.10.2 From ed8b0d67f33518a16c6b2450fe5ebebf180c2d04 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Mon, 16 Apr 2012 14:46:30 +0200 Subject: dmaengine: at_hdmac: remove clear-on-read in atc_dostart() This loop on EBCISR register was designed to clear IRQ sources before enabling a DMA channel. This register is clear-on-read so a race condition can appear if another channel is already active and has just finished its transfer. Removing this read on EBCISR is fixing the issue as there is no case where an IRQ could be pending: we already make sure that this register is drained at probe() time and during resume. Signed-off-by: Nicolas Ferre Cc: stable Signed-off-by: Vinod Koul diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c index 7aa58d2..445fdf8 100644 --- a/drivers/dma/at_hdmac.c +++ b/drivers/dma/at_hdmac.c @@ -221,10 +221,6 @@ static void atc_dostart(struct at_dma_chan *atchan, struct at_desc *first) vdbg_dump_regs(atchan); - /* clear any pending interrupt */ - while (dma_readl(atdma, EBCISR)) - cpu_relax(); - channel_writel(atchan, SADDR, 0); channel_writel(atchan, DADDR, 0); channel_writel(atchan, CTRLA, 0); -- cgit v0.10.2 From 2d5733fcd33dd451022d197cb6b476e970519ca7 Mon Sep 17 00:00:00 2001 From: Yuri Matylitski Date: Fri, 20 Apr 2012 12:38:32 +0300 Subject: USB: serial: cp210x: Fixed usb_control_msg timeout values Fixed too small hardcoded timeout values for usb_control_msg in driver for SiliconLabs cp210x-based usb-to-serial adapters. Replaced with USB_CTRL_GET_TIMEOUT/USB_CTRL_SET_TIMEOUT. Signed-off-by: Yuri Matylitski Acked-by: Kirill A. Shutemov Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index 0310e2d..ec30f95 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -287,7 +287,8 @@ static int cp210x_get_config(struct usb_serial_port *port, u8 request, /* Issue the request, attempting to read 'size' bytes */ result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), request, REQTYPE_DEVICE_TO_HOST, 0x0000, - port_priv->bInterfaceNumber, buf, size, 300); + port_priv->bInterfaceNumber, buf, size, + USB_CTRL_GET_TIMEOUT); /* Convert data into an array of integers */ for (i = 0; i < length; i++) @@ -340,12 +341,14 @@ static int cp210x_set_config(struct usb_serial_port *port, u8 request, result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), request, REQTYPE_HOST_TO_DEVICE, 0x0000, - port_priv->bInterfaceNumber, buf, size, 300); + port_priv->bInterfaceNumber, buf, size, + USB_CTRL_SET_TIMEOUT); } else { result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), request, REQTYPE_HOST_TO_DEVICE, data[0], - port_priv->bInterfaceNumber, NULL, 0, 300); + port_priv->bInterfaceNumber, NULL, 0, + USB_CTRL_SET_TIMEOUT); } kfree(buf); -- cgit v0.10.2 From 3d81acb1cdb242378a1acb3eb1bc28c6bb5895f1 Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Fri, 20 Apr 2012 11:50:30 -0400 Subject: Revert "xen/p2m: m2p_find_override: use list_for_each_entry_safe" This reverts commit b960d6c43a63ebd2d8518b328da3816b833ee8cc. If we have another thread (very likely) touched the list, we end up hitting a problem "that the next element is wrong because we should be able to cope with that. The problem is that the next->next pointer would be set LIST_POISON1. " (Stefano's comment on the patch). Reverting for now. Suggested-by: Dan Carpenter Acked-by: Stefano Stabellini Signed-off-by: Konrad Rzeszutek Wilk diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c index 7ed8cc3..1b267e7 100644 --- a/arch/x86/xen/p2m.c +++ b/arch/x86/xen/p2m.c @@ -809,17 +809,21 @@ struct page *m2p_find_override(unsigned long mfn) { unsigned long flags; struct list_head *bucket = &m2p_overrides[mfn_hash(mfn)]; - struct page *p, *t, *ret; + struct page *p, *ret; ret = NULL; - list_for_each_entry_safe(p, t, bucket, lru) { + spin_lock_irqsave(&m2p_override_lock, flags); + + list_for_each_entry(p, bucket, lru) { if (page_private(p) == mfn) { ret = p; break; } } + spin_unlock_irqrestore(&m2p_override_lock, flags); + return ret; } -- cgit v0.10.2 From 33ff581eddf744ea91a50d46c2f0961b375a9595 Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Wed, 18 Apr 2012 15:46:58 +0200 Subject: perf symbols: Read plt symbols from proper symtab_type binary When loading symbols from DSO we check multiple paths of DSO binary until we succeed to load symbols ('.symtab' section). Once symbols are read we try to load also plt symbols. During the reading of plt symbols, the dso file is reopened from location given by dso->long_name. This could be wrong in case we want process buildid binaries. The change is to make the plt symbols being read from the DSO path, that normal symbols were read from. Signed-off-by: Jiri Olsa Cc: Corey Ashford Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1334756818-6631-1-git-send-email-jolsa@redhat.com [ committer note: moved dso to be the first parameter of that function ] Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index c0a028c..ab9867b 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -977,8 +977,9 @@ static Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep, * And always look at the original dso, not at debuginfo packages, that * have the PLT data stripped out (shdr_rel_plt.sh_type == SHT_NOBITS). */ -static int dso__synthesize_plt_symbols(struct dso *dso, struct map *map, - symbol_filter_t filter) +static int +dso__synthesize_plt_symbols(struct dso *dso, char *name, struct map *map, + symbol_filter_t filter) { uint32_t nr_rel_entries, idx; GElf_Sym sym; @@ -993,10 +994,7 @@ static int dso__synthesize_plt_symbols(struct dso *dso, struct map *map, char sympltname[1024]; Elf *elf; int nr = 0, symidx, fd, err = 0; - char name[PATH_MAX]; - snprintf(name, sizeof(name), "%s%s", - symbol_conf.symfs, dso->long_name); fd = open(name, O_RDONLY); if (fd < 0) goto out; @@ -1703,8 +1701,9 @@ restart: continue; if (ret > 0) { - int nr_plt = dso__synthesize_plt_symbols(dso, map, - filter); + int nr_plt; + + nr_plt = dso__synthesize_plt_symbols(dso, name, map, filter); if (nr_plt > 0) ret += nr_plt; break; -- cgit v0.10.2 From b3dc627cabb33fc95f93da78457770c1b2a364d2 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 20 Apr 2012 08:31:34 -0700 Subject: memblock: memblock should be able to handle zero length operations Commit 24aa07882b ("memblock, x86: Replace memblock_x86_reserve/ free_range() with generic ones") replaced x86 specific memblock operations with the generic ones; unfortunately, it lost zero length operation handling in the process making the kernel panic if somebody tries to reserve zero length area. There isn't much to be gained by being cranky to zero length operations and panicking is almost the worst response. Drop the BUG_ON() in memblock_reserve() and update memblock_add_region/isolate_range() so that all zero length operations are handled as noops. Signed-off-by: Tejun Heo Cc: stable@vger.kernel.org Reported-by: Valere Monseur Bisected-by: Joseph Freeman Tested-by: Joseph Freeman Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43098 Signed-off-by: Linus Torvalds diff --git a/mm/memblock.c b/mm/memblock.c index 99f2855..a44eab3 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -330,6 +330,9 @@ static int __init_memblock memblock_add_region(struct memblock_type *type, phys_addr_t end = base + memblock_cap_size(base, &size); int i, nr_new; + if (!size) + return 0; + /* special case for empty array */ if (type->regions[0].size == 0) { WARN_ON(type->cnt != 1 || type->total_size); @@ -430,6 +433,9 @@ static int __init_memblock memblock_isolate_range(struct memblock_type *type, *start_rgn = *end_rgn = 0; + if (!size) + return 0; + /* we'll create at most two more regions */ while (type->cnt + 2 > type->max) if (memblock_double_array(type) < 0) @@ -514,7 +520,6 @@ int __init_memblock memblock_reserve(phys_addr_t base, phys_addr_t size) (unsigned long long)base, (unsigned long long)base + size, (void *)_RET_IP_); - BUG_ON(0 == size); return memblock_add_region(_rgn, base, size, MAX_NUMNODES); } -- cgit v0.10.2 From 19244ad06b70ed84931df868583547ce1cd3a186 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 20 Apr 2012 11:19:35 -0700 Subject: Revert "ACPI: ignore FADT reset-reg-sup flag" MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This reverts commit cf450136bfde77c7f95065c91bffded4aa7fa731. It breaks reboot on at least one Thinkpad T43, as reported by Jörg Otte: "On reboot it shuts down as normal. The last lines displayed are: >Unmounting temporary filesystems.. [OK] >Deactivating swap... [OK] >Unmounting local filesystems... [OK] >Will now restart > Restarting system Then I hear it accessing the cd-drive, but then it's being stuck." Jörg bisected the regression to this commit. That commit fixes another machine (see https://bugzilla.kernel.org/show_bug.cgi?id=11533 for details) that has a BIOS bug and doesn't support ACPI reset. However, at least one of those other reporters no longer even has the machine in question, and had a different workaround to begin with. Besides, it clearly was a buggy BIOS. Let's not break the correct case to fix that case. Reported-and-bisected-by: Jörg Otte Cc: linux-acpi@vger.kernel.org Cc: Len Brown Cc: Peter Anvin Signed-off-by: Linus Torvalds diff --git a/drivers/acpi/acpica/hwxface.c b/drivers/acpi/acpica/hwxface.c index ab513a9..a716fed 100644 --- a/drivers/acpi/acpica/hwxface.c +++ b/drivers/acpi/acpica/hwxface.c @@ -74,7 +74,8 @@ acpi_status acpi_reset(void) /* Check if the reset register is supported */ - if (!reset_reg->address) { + if (!(acpi_gbl_FADT.flags & ACPI_FADT_RESET_REGISTER) || + !reset_reg->address) { return_ACPI_STATUS(AE_NOT_EXIST); } diff --git a/drivers/acpi/reboot.c b/drivers/acpi/reboot.c index c1d6124..a6c77e8b 100644 --- a/drivers/acpi/reboot.c +++ b/drivers/acpi/reboot.c @@ -23,7 +23,8 @@ void acpi_reboot(void) /* Is the reset register supported? The spec says we should be * checking the bit width and bit offset, but Windows ignores * these fields */ - /* Ignore also acpi_gbl_FADT.flags.ACPI_FADT_RESET_REGISTER */ + if (!(acpi_gbl_FADT.flags & ACPI_FADT_RESET_REGISTER)) + return; reset_value = acpi_gbl_FADT.reset_value; -- cgit v0.10.2 From 73fb7bc7c57d971b11f2e00536ac2d3e316e0609 Mon Sep 17 00:00:00 2001 From: Fred Isaman Date: Fri, 20 Apr 2012 14:47:34 -0400 Subject: NFS: put open context on error in nfs_pagein_multi Cc: Signed-off-by: Fred Isaman Signed-off-by: Trond Myklebust diff --git a/fs/nfs/read.c b/fs/nfs/read.c index 9a0e8ef..0a4be28 100644 --- a/fs/nfs/read.c +++ b/fs/nfs/read.c @@ -322,7 +322,7 @@ out_bad: while (!list_empty(res)) { data = list_entry(res->next, struct nfs_read_data, list); list_del(&data->list); - nfs_readdata_free(data); + nfs_readdata_release(data); } nfs_readpage_release(req); return -ENOMEM; -- cgit v0.10.2 From 8ccd271f7a3a846ce6f85ead0760d9d12994a611 Mon Sep 17 00:00:00 2001 From: Fred Isaman Date: Fri, 20 Apr 2012 14:47:35 -0400 Subject: NFS: put open context on error in nfs_flush_multi Cc: Signed-off-by: Fred Isaman Signed-off-by: Trond Myklebust diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 9b8d4d4..c074623 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -1019,7 +1019,7 @@ out_bad: while (!list_empty(res)) { data = list_entry(res->next, struct nfs_write_data, list); list_del(&data->list); - nfs_writedata_free(data); + nfs_writedata_release(data); } nfs_redirty_request(req); return -ENOMEM; -- cgit v0.10.2 From 98a2139f4f4d7b5fcc3a54c7fddbe88612abed20 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Sat, 3 Sep 2011 01:09:43 +0200 Subject: nfs: Enclose hostname in brackets when needed in nfs_do_root_mount When hostname contains colon (e.g. when it is an IPv6 address) it needs to be enclosed in brackets to make parsing of NFS device string possible. Fix nfs_do_root_mount() to enclose hostname properly when needed. NFS code actually does not need this as it does not parse the string passed by nfs_do_root_mount() but the device string is exposed to userspace in /proc/mounts. CC: Josh Boyer CC: Trond Myklebust Signed-off-by: Jan Kara Cc: stable@vger.kernel.org Signed-off-by: Trond Myklebust diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 37412f7..1e6715f 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -2767,11 +2767,15 @@ static struct vfsmount *nfs_do_root_mount(struct file_system_type *fs_type, char *root_devname; size_t len; - len = strlen(hostname) + 3; + len = strlen(hostname) + 5; root_devname = kmalloc(len, GFP_KERNEL); if (root_devname == NULL) return ERR_PTR(-ENOMEM); - snprintf(root_devname, len, "%s:/", hostname); + /* Does hostname needs to be enclosed in brackets? */ + if (strchr(hostname, ':')) + snprintf(root_devname, len, "[%s]:/", hostname); + else + snprintf(root_devname, len, "%s:/", hostname); root_mnt = vfs_kern_mount(fs_type, flags, root_devname, data); kfree(root_devname); return root_mnt; -- cgit v0.10.2 From 8482c81c770960d7c0dc991a781cbd4afa7ea4cc Mon Sep 17 00:00:00 2001 From: Thomas Abraham Date: Sat, 14 Apr 2012 08:04:46 -0700 Subject: ARM: EXYNOS: use 'exynos4-sdhci' as device name for sdhci controllers With the addition of platform specific driver data in the sdhci driver for EXYNOS4 and EXYNOS5, the device name of sdhci controllers on EXYNOS4 and EXYNOS5 are changed accordingly. Signed-off-by: Thomas Abraham [kgene.kim@samsung.com: re-worked on top of v3.4-rc2] Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-exynos/clock-exynos4.c b/arch/arm/mach-exynos/clock-exynos4.c index df54c2a..6efd1e5 100644 --- a/arch/arm/mach-exynos/clock-exynos4.c +++ b/arch/arm/mach-exynos/clock-exynos4.c @@ -497,25 +497,25 @@ static struct clk exynos4_init_clocks_off[] = { .ctrlbit = (1 << 3), }, { .name = "hsmmc", - .devname = "s3c-sdhci.0", + .devname = "exynos4-sdhci.0", .parent = &exynos4_clk_aclk_133.clk, .enable = exynos4_clk_ip_fsys_ctrl, .ctrlbit = (1 << 5), }, { .name = "hsmmc", - .devname = "s3c-sdhci.1", + .devname = "exynos4-sdhci.1", .parent = &exynos4_clk_aclk_133.clk, .enable = exynos4_clk_ip_fsys_ctrl, .ctrlbit = (1 << 6), }, { .name = "hsmmc", - .devname = "s3c-sdhci.2", + .devname = "exynos4-sdhci.2", .parent = &exynos4_clk_aclk_133.clk, .enable = exynos4_clk_ip_fsys_ctrl, .ctrlbit = (1 << 7), }, { .name = "hsmmc", - .devname = "s3c-sdhci.3", + .devname = "exynos4-sdhci.3", .parent = &exynos4_clk_aclk_133.clk, .enable = exynos4_clk_ip_fsys_ctrl, .ctrlbit = (1 << 8), @@ -1202,7 +1202,7 @@ static struct clksrc_clk exynos4_clk_sclk_uart3 = { static struct clksrc_clk exynos4_clk_sclk_mmc0 = { .clk = { .name = "sclk_mmc", - .devname = "s3c-sdhci.0", + .devname = "exynos4-sdhci.0", .parent = &exynos4_clk_dout_mmc0.clk, .enable = exynos4_clksrc_mask_fsys_ctrl, .ctrlbit = (1 << 0), @@ -1213,7 +1213,7 @@ static struct clksrc_clk exynos4_clk_sclk_mmc0 = { static struct clksrc_clk exynos4_clk_sclk_mmc1 = { .clk = { .name = "sclk_mmc", - .devname = "s3c-sdhci.1", + .devname = "exynos4-sdhci.1", .parent = &exynos4_clk_dout_mmc1.clk, .enable = exynos4_clksrc_mask_fsys_ctrl, .ctrlbit = (1 << 4), @@ -1224,7 +1224,7 @@ static struct clksrc_clk exynos4_clk_sclk_mmc1 = { static struct clksrc_clk exynos4_clk_sclk_mmc2 = { .clk = { .name = "sclk_mmc", - .devname = "s3c-sdhci.2", + .devname = "exynos4-sdhci.2", .parent = &exynos4_clk_dout_mmc2.clk, .enable = exynos4_clksrc_mask_fsys_ctrl, .ctrlbit = (1 << 8), @@ -1235,7 +1235,7 @@ static struct clksrc_clk exynos4_clk_sclk_mmc2 = { static struct clksrc_clk exynos4_clk_sclk_mmc3 = { .clk = { .name = "sclk_mmc", - .devname = "s3c-sdhci.3", + .devname = "exynos4-sdhci.3", .parent = &exynos4_clk_dout_mmc3.clk, .enable = exynos4_clksrc_mask_fsys_ctrl, .ctrlbit = (1 << 12), @@ -1340,10 +1340,10 @@ static struct clk_lookup exynos4_clk_lookup[] = { CLKDEV_INIT("exynos4210-uart.1", "clk_uart_baud0", &exynos4_clk_sclk_uart1.clk), CLKDEV_INIT("exynos4210-uart.2", "clk_uart_baud0", &exynos4_clk_sclk_uart2.clk), CLKDEV_INIT("exynos4210-uart.3", "clk_uart_baud0", &exynos4_clk_sclk_uart3.clk), - CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &exynos4_clk_sclk_mmc0.clk), - CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &exynos4_clk_sclk_mmc1.clk), - CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &exynos4_clk_sclk_mmc2.clk), - CLKDEV_INIT("s3c-sdhci.3", "mmc_busclk.2", &exynos4_clk_sclk_mmc3.clk), + CLKDEV_INIT("exynos4-sdhci.0", "mmc_busclk.2", &exynos4_clk_sclk_mmc0.clk), + CLKDEV_INIT("exynos4-sdhci.1", "mmc_busclk.2", &exynos4_clk_sclk_mmc1.clk), + CLKDEV_INIT("exynos4-sdhci.2", "mmc_busclk.2", &exynos4_clk_sclk_mmc2.clk), + CLKDEV_INIT("exynos4-sdhci.3", "mmc_busclk.2", &exynos4_clk_sclk_mmc3.clk), CLKDEV_INIT("exynos4-fb.0", "lcd", &exynos4_clk_fimd0), CLKDEV_INIT("dma-pl330.0", "apb_pclk", &exynos4_clk_pdma0), CLKDEV_INIT("dma-pl330.1", "apb_pclk", &exynos4_clk_pdma1), diff --git a/arch/arm/mach-exynos/clock-exynos5.c b/arch/arm/mach-exynos/clock-exynos5.c index d013982..5cd7a8b 100644 --- a/arch/arm/mach-exynos/clock-exynos5.c +++ b/arch/arm/mach-exynos/clock-exynos5.c @@ -455,25 +455,25 @@ static struct clk exynos5_init_clocks_off[] = { .ctrlbit = (1 << 20), }, { .name = "hsmmc", - .devname = "s3c-sdhci.0", + .devname = "exynos4-sdhci.0", .parent = &exynos5_clk_aclk_200.clk, .enable = exynos5_clk_ip_fsys_ctrl, .ctrlbit = (1 << 12), }, { .name = "hsmmc", - .devname = "s3c-sdhci.1", + .devname = "exynos4-sdhci.1", .parent = &exynos5_clk_aclk_200.clk, .enable = exynos5_clk_ip_fsys_ctrl, .ctrlbit = (1 << 13), }, { .name = "hsmmc", - .devname = "s3c-sdhci.2", + .devname = "exynos4-sdhci.2", .parent = &exynos5_clk_aclk_200.clk, .enable = exynos5_clk_ip_fsys_ctrl, .ctrlbit = (1 << 14), }, { .name = "hsmmc", - .devname = "s3c-sdhci.3", + .devname = "exynos4-sdhci.3", .parent = &exynos5_clk_aclk_200.clk, .enable = exynos5_clk_ip_fsys_ctrl, .ctrlbit = (1 << 15), @@ -813,7 +813,7 @@ static struct clksrc_clk exynos5_clk_sclk_uart3 = { static struct clksrc_clk exynos5_clk_sclk_mmc0 = { .clk = { .name = "sclk_mmc", - .devname = "s3c-sdhci.0", + .devname = "exynos4-sdhci.0", .parent = &exynos5_clk_dout_mmc0.clk, .enable = exynos5_clksrc_mask_fsys_ctrl, .ctrlbit = (1 << 0), @@ -824,7 +824,7 @@ static struct clksrc_clk exynos5_clk_sclk_mmc0 = { static struct clksrc_clk exynos5_clk_sclk_mmc1 = { .clk = { .name = "sclk_mmc", - .devname = "s3c-sdhci.1", + .devname = "exynos4-sdhci.1", .parent = &exynos5_clk_dout_mmc1.clk, .enable = exynos5_clksrc_mask_fsys_ctrl, .ctrlbit = (1 << 4), @@ -835,7 +835,7 @@ static struct clksrc_clk exynos5_clk_sclk_mmc1 = { static struct clksrc_clk exynos5_clk_sclk_mmc2 = { .clk = { .name = "sclk_mmc", - .devname = "s3c-sdhci.2", + .devname = "exynos4-sdhci.2", .parent = &exynos5_clk_dout_mmc2.clk, .enable = exynos5_clksrc_mask_fsys_ctrl, .ctrlbit = (1 << 8), @@ -846,7 +846,7 @@ static struct clksrc_clk exynos5_clk_sclk_mmc2 = { static struct clksrc_clk exynos5_clk_sclk_mmc3 = { .clk = { .name = "sclk_mmc", - .devname = "s3c-sdhci.3", + .devname = "exynos4-sdhci.3", .parent = &exynos5_clk_dout_mmc3.clk, .enable = exynos5_clksrc_mask_fsys_ctrl, .ctrlbit = (1 << 12), @@ -990,10 +990,10 @@ static struct clk_lookup exynos5_clk_lookup[] = { CLKDEV_INIT("exynos4210-uart.1", "clk_uart_baud0", &exynos5_clk_sclk_uart1.clk), CLKDEV_INIT("exynos4210-uart.2", "clk_uart_baud0", &exynos5_clk_sclk_uart2.clk), CLKDEV_INIT("exynos4210-uart.3", "clk_uart_baud0", &exynos5_clk_sclk_uart3.clk), - CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &exynos5_clk_sclk_mmc0.clk), - CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &exynos5_clk_sclk_mmc1.clk), - CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &exynos5_clk_sclk_mmc2.clk), - CLKDEV_INIT("s3c-sdhci.3", "mmc_busclk.2", &exynos5_clk_sclk_mmc3.clk), + CLKDEV_INIT("exynos4-sdhci.0", "mmc_busclk.2", &exynos5_clk_sclk_mmc0.clk), + CLKDEV_INIT("exynos4-sdhci.1", "mmc_busclk.2", &exynos5_clk_sclk_mmc1.clk), + CLKDEV_INIT("exynos4-sdhci.2", "mmc_busclk.2", &exynos5_clk_sclk_mmc2.clk), + CLKDEV_INIT("exynos4-sdhci.3", "mmc_busclk.2", &exynos5_clk_sclk_mmc3.clk), CLKDEV_INIT("dma-pl330.0", "apb_pclk", &exynos5_clk_pdma0), CLKDEV_INIT("dma-pl330.1", "apb_pclk", &exynos5_clk_pdma1), CLKDEV_INIT("dma-pl330.2", "apb_pclk", &exynos5_clk_mdma1), diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c index 8614aab..b5e7f00 100644 --- a/arch/arm/mach-exynos/common.c +++ b/arch/arm/mach-exynos/common.c @@ -326,6 +326,11 @@ static void __init exynos4_map_io(void) s3c_fimc_setname(2, "exynos4-fimc"); s3c_fimc_setname(3, "exynos4-fimc"); + s3c_sdhci_setname(0, "exynos4-sdhci"); + s3c_sdhci_setname(1, "exynos4-sdhci"); + s3c_sdhci_setname(2, "exynos4-sdhci"); + s3c_sdhci_setname(3, "exynos4-sdhci"); + /* The I2C bus controllers are directly compatible with s3c2440 */ s3c_i2c0_setname("s3c2440-i2c"); s3c_i2c1_setname("s3c2440-i2c"); @@ -344,6 +349,11 @@ static void __init exynos5_map_io(void) s3c_device_i2c0.resource[1].start = EXYNOS5_IRQ_IIC; s3c_device_i2c0.resource[1].end = EXYNOS5_IRQ_IIC; + s3c_sdhci_setname(0, "exynos4-sdhci"); + s3c_sdhci_setname(1, "exynos4-sdhci"); + s3c_sdhci_setname(2, "exynos4-sdhci"); + s3c_sdhci_setname(3, "exynos4-sdhci"); + /* The I2C bus controllers are directly compatible with s3c2440 */ s3c_i2c0_setname("s3c2440-i2c"); s3c_i2c1_setname("s3c2440-i2c"); diff --git a/arch/arm/plat-samsung/include/plat/sdhci.h b/arch/arm/plat-samsung/include/plat/sdhci.h index 317e246..e834c5e 100644 --- a/arch/arm/plat-samsung/include/plat/sdhci.h +++ b/arch/arm/plat-samsung/include/plat/sdhci.h @@ -18,6 +18,8 @@ #ifndef __PLAT_S3C_SDHCI_H #define __PLAT_S3C_SDHCI_H __FILE__ +#include + struct platform_device; struct mmc_host; struct mmc_card; @@ -356,4 +358,30 @@ static inline void exynos4_default_sdhci3(void) { } #endif /* CONFIG_EXYNOS4_SETUP_SDHCI */ +static inline void s3c_sdhci_setname(int id, char *name) +{ + switch (id) { +#ifdef CONFIG_S3C_DEV_HSMMC + case 0: + s3c_device_hsmmc0.name = name; + break; +#endif +#ifdef CONFIG_S3C_DEV_HSMMC1 + case 1: + s3c_device_hsmmc1.name = name; + break; +#endif +#ifdef CONFIG_S3C_DEV_HSMMC2 + case 2: + s3c_device_hsmmc2.name = name; + break; +#endif +#ifdef CONFIG_S3C_DEV_HSMMC3 + case 3: + s3c_device_hsmmc3.name = name; + break; +#endif + } +} + #endif /* __PLAT_S3C_SDHCI_H */ -- cgit v0.10.2 From e4eb1ff61b323d6141614e5458a1f53c7046ff8e Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 20 Apr 2012 15:35:40 -0700 Subject: VM: add "vm_brk()" helper function It does the same thing as "do_brk()", except it handles the VM locking too. It turns out that all external callers want that anyway, so we can make do_brk() static to just mm/mmap.c while at it. Signed-off-by: Linus Torvalds diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c index d511d95..b6817ee 100644 --- a/arch/x86/ia32/ia32_aout.c +++ b/arch/x86/ia32/ia32_aout.c @@ -119,9 +119,7 @@ static void set_brk(unsigned long start, unsigned long end) end = PAGE_ALIGN(end); if (end <= start) return; - down_write(¤t->mm->mmap_sem); - do_brk(start, end - start); - up_write(¤t->mm->mmap_sem); + vm_brk(start, end - start); } #ifdef CORE_DUMP @@ -332,9 +330,7 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs) pos = 32; map_size = ex.a_text+ex.a_data; - down_write(¤t->mm->mmap_sem); - error = do_brk(text_addr & PAGE_MASK, map_size); - up_write(¤t->mm->mmap_sem); + error = vm_brk(text_addr & PAGE_MASK, map_size); if (error != (text_addr & PAGE_MASK)) { send_sig(SIGKILL, current, 0); @@ -373,9 +369,7 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs) if (!bprm->file->f_op->mmap || (fd_offset & ~PAGE_MASK) != 0) { loff_t pos = fd_offset; - down_write(¤t->mm->mmap_sem); - do_brk(N_TXTADDR(ex), ex.a_text+ex.a_data); - up_write(¤t->mm->mmap_sem); + vm_brk(N_TXTADDR(ex), ex.a_text+ex.a_data); bprm->file->f_op->read(bprm->file, (char __user *)N_TXTADDR(ex), ex.a_text+ex.a_data, &pos); @@ -476,9 +470,7 @@ static int load_aout_library(struct file *file) error_time = jiffies; } #endif - down_write(¤t->mm->mmap_sem); - do_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss); - up_write(¤t->mm->mmap_sem); + vm_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss); file->f_op->read(file, (char __user *)start_addr, ex.a_text + ex.a_data, &pos); @@ -503,9 +495,7 @@ static int load_aout_library(struct file *file) len = PAGE_ALIGN(ex.a_text + ex.a_data); bss = ex.a_text + ex.a_data + ex.a_bss; if (bss > len) { - down_write(¤t->mm->mmap_sem); - error = do_brk(start_addr + len, bss - len); - up_write(¤t->mm->mmap_sem); + error = vm_brk(start_addr + len, bss - len); retval = error; if (error != start_addr + len) goto out; diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c index 2eb12f1..8852749 100644 --- a/fs/binfmt_aout.c +++ b/fs/binfmt_aout.c @@ -50,9 +50,7 @@ static int set_brk(unsigned long start, unsigned long end) end = PAGE_ALIGN(end); if (end > start) { unsigned long addr; - down_write(¤t->mm->mmap_sem); - addr = do_brk(start, end - start); - up_write(¤t->mm->mmap_sem); + addr = vm_brk(start, end - start); if (BAD_ADDR(addr)) return addr; } @@ -280,9 +278,7 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs) pos = 32; map_size = ex.a_text+ex.a_data; #endif - down_write(¤t->mm->mmap_sem); - error = do_brk(text_addr & PAGE_MASK, map_size); - up_write(¤t->mm->mmap_sem); + error = vm_brk(text_addr & PAGE_MASK, map_size); if (error != (text_addr & PAGE_MASK)) { send_sig(SIGKILL, current, 0); return error; @@ -313,9 +309,7 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs) if (!bprm->file->f_op->mmap||((fd_offset & ~PAGE_MASK) != 0)) { loff_t pos = fd_offset; - down_write(¤t->mm->mmap_sem); - do_brk(N_TXTADDR(ex), ex.a_text+ex.a_data); - up_write(¤t->mm->mmap_sem); + vm_brk(N_TXTADDR(ex), ex.a_text+ex.a_data); bprm->file->f_op->read(bprm->file, (char __user *)N_TXTADDR(ex), ex.a_text+ex.a_data, &pos); @@ -412,9 +406,7 @@ static int load_aout_library(struct file *file) "N_TXTOFF is not page aligned. Please convert library: %s\n", file->f_path.dentry->d_name.name); } - down_write(¤t->mm->mmap_sem); - do_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss); - up_write(¤t->mm->mmap_sem); + vm_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss); file->f_op->read(file, (char __user *)start_addr, ex.a_text + ex.a_data, &pos); @@ -438,9 +430,7 @@ static int load_aout_library(struct file *file) len = PAGE_ALIGN(ex.a_text + ex.a_data); bss = ex.a_text + ex.a_data + ex.a_bss; if (bss > len) { - down_write(¤t->mm->mmap_sem); - error = do_brk(start_addr + len, bss - len); - up_write(¤t->mm->mmap_sem); + error = vm_brk(start_addr + len, bss - len); retval = error; if (error != start_addr + len) goto out; diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c index 48ffb3d..0708a0b 100644 --- a/fs/binfmt_elf.c +++ b/fs/binfmt_elf.c @@ -82,9 +82,7 @@ static int set_brk(unsigned long start, unsigned long end) end = ELF_PAGEALIGN(end); if (end > start) { unsigned long addr; - down_write(¤t->mm->mmap_sem); - addr = do_brk(start, end - start); - up_write(¤t->mm->mmap_sem); + addr = vm_brk(start, end - start); if (BAD_ADDR(addr)) return addr; } @@ -514,9 +512,7 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex, elf_bss = ELF_PAGESTART(elf_bss + ELF_MIN_ALIGN - 1); /* Map the last of the bss segment */ - down_write(¤t->mm->mmap_sem); - error = do_brk(elf_bss, last_bss - elf_bss); - up_write(¤t->mm->mmap_sem); + error = vm_brk(elf_bss, last_bss - elf_bss); if (BAD_ADDR(error)) goto out_close; } @@ -1072,11 +1068,8 @@ static int load_elf_library(struct file *file) len = ELF_PAGESTART(eppnt->p_filesz + eppnt->p_vaddr + ELF_MIN_ALIGN - 1); bss = eppnt->p_memsz + eppnt->p_vaddr; - if (bss > len) { - down_write(¤t->mm->mmap_sem); - do_brk(len, bss - len); - up_write(¤t->mm->mmap_sem); - } + if (bss > len) + vm_brk(len, bss - len); error = 0; out_free_ph: diff --git a/include/linux/mm.h b/include/linux/mm.h index d8738a4..bfee4ad 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1415,7 +1415,8 @@ out: extern int do_munmap(struct mm_struct *, unsigned long, size_t); -extern unsigned long do_brk(unsigned long, unsigned long); +/* These take the mm semaphore themselves */ +extern unsigned long vm_brk(unsigned long, unsigned long); /* truncate.c */ extern void truncate_inode_pages(struct address_space *, loff_t); diff --git a/mm/mmap.c b/mm/mmap.c index a7bf6a3..df51891 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -240,6 +240,8 @@ static struct vm_area_struct *remove_vma(struct vm_area_struct *vma) return next; } +static unsigned long do_brk(unsigned long addr, unsigned long len); + SYSCALL_DEFINE1(brk, unsigned long, brk) { unsigned long rlim, retval; @@ -2136,7 +2138,7 @@ static inline void verify_mm_writelocked(struct mm_struct *mm) * anonymous maps. eventually we may be able to do some * brk-specific accounting here. */ -unsigned long do_brk(unsigned long addr, unsigned long len) +static unsigned long do_brk(unsigned long addr, unsigned long len) { struct mm_struct * mm = current->mm; struct vm_area_struct * vma, * prev; @@ -2232,7 +2234,17 @@ out: return addr; } -EXPORT_SYMBOL(do_brk); +unsigned long vm_brk(unsigned long addr, unsigned long len) +{ + struct mm_struct *mm = current->mm; + unsigned long ret; + + down_write(&mm->mmap_sem); + ret = do_brk(addr, len); + up_write(&mm->mmap_sem); + return ret; +} +EXPORT_SYMBOL(vm_brk); /* Release all mmaps. */ void exit_mmap(struct mm_struct *mm) diff --git a/mm/nommu.c b/mm/nommu.c index f59e170..6341933 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -1744,7 +1744,7 @@ void exit_mmap(struct mm_struct *mm) kleave(""); } -unsigned long do_brk(unsigned long addr, unsigned long len) +unsigned long vm_brk(unsigned long addr, unsigned long len) { return -ENOMEM; } -- cgit v0.10.2 From 7194efb8f063ee3aa0cb50d9002348887e68ec10 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Thu, 5 Apr 2012 14:45:47 +0300 Subject: mmc: fixes for eMMC v4.5 discard operation eMMC v4.5 discard operation is significantly different from the existing trim operation because it is not guaranteed to work with the new sanitize operation. Consequently mmc_can_trim() is separated from mmc_can_discard(). Also the new discard operation does not result in the sectors being set to all-zeros, so discard_zeroes_data must not be set. In addition, the new discard has the same timeout as trim, but from v4.5 trim is defined to use the hc timeout. The timeout calculation is adjusted accordingly. Fixes apply to linux 3.2 on. Signed-off-by: Adrian Hunter Cc: Acked-by: Jaehoon Chung Acked-by: Linus Walleij Signed-off-by: Chris Ball diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c index 2517547..996f8e3 100644 --- a/drivers/mmc/card/queue.c +++ b/drivers/mmc/card/queue.c @@ -139,7 +139,7 @@ static void mmc_queue_setup_discard(struct request_queue *q, queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q); q->limits.max_discard_sectors = max_discard; - if (card->erased_byte == 0) + if (card->erased_byte == 0 && !mmc_can_discard(card)) q->limits.discard_zeroes_data = 1; q->limits.discard_granularity = card->pref_erase << 9; /* granularity must not be greater than max. discard */ diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 7474c47..83db5ef 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -1409,7 +1409,10 @@ static unsigned int mmc_mmc_erase_timeout(struct mmc_card *card, { unsigned int erase_timeout; - if (card->ext_csd.erase_group_def & 1) { + if (arg == MMC_DISCARD_ARG || + (arg == MMC_TRIM_ARG && card->ext_csd.rev >= 6)) { + erase_timeout = card->ext_csd.trim_timeout; + } else if (card->ext_csd.erase_group_def & 1) { /* High Capacity Erase Group Size uses HC timeouts */ if (arg == MMC_TRIM_ARG) erase_timeout = card->ext_csd.trim_timeout; @@ -1681,8 +1684,6 @@ int mmc_can_trim(struct mmc_card *card) { if (card->ext_csd.sec_feature_support & EXT_CSD_SEC_GB_CL_EN) return 1; - if (mmc_can_discard(card)) - return 1; return 0; } EXPORT_SYMBOL(mmc_can_trim); -- cgit v0.10.2 From 283028122db37621b124f079ca8eae5b64807ad4 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Thu, 5 Apr 2012 14:45:48 +0300 Subject: mmc: fixes for eMMC v4.5 sanitize operation eMMC v4.5 sanitize operation erases all copies of unmapped data. However trim or erase operations must be used first to unmap the required sectors. That was not being done. Fixes apply to linux 3.2 on. Signed-off-by: Adrian Hunter Cc: Acked-by: Jaehoon Chung Acked-by: Linus Walleij Signed-off-by: Chris Ball diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index b180965..4232bc4 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -873,7 +873,7 @@ static int mmc_blk_issue_secdiscard_rq(struct mmc_queue *mq, { struct mmc_blk_data *md = mq->data; struct mmc_card *card = md->queue.card; - unsigned int from, nr, arg; + unsigned int from, nr, arg, trim_arg, erase_arg; int err = 0, type = MMC_BLK_SECDISCARD; if (!(mmc_can_secure_erase_trim(card) || mmc_can_sanitize(card))) { @@ -881,20 +881,26 @@ static int mmc_blk_issue_secdiscard_rq(struct mmc_queue *mq, goto out; } + from = blk_rq_pos(req); + nr = blk_rq_sectors(req); + /* The sanitize operation is supported at v4.5 only */ if (mmc_can_sanitize(card)) { - err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, - EXT_CSD_SANITIZE_START, 1, 0); - goto out; + erase_arg = MMC_ERASE_ARG; + trim_arg = MMC_TRIM_ARG; + } else { + erase_arg = MMC_SECURE_ERASE_ARG; + trim_arg = MMC_SECURE_TRIM1_ARG; } - from = blk_rq_pos(req); - nr = blk_rq_sectors(req); - - if (mmc_can_trim(card) && !mmc_erase_group_aligned(card, from, nr)) - arg = MMC_SECURE_TRIM1_ARG; - else - arg = MMC_SECURE_ERASE_ARG; + if (mmc_erase_group_aligned(card, from, nr)) + arg = erase_arg; + else if (mmc_can_trim(card)) + arg = trim_arg; + else { + err = -EINVAL; + goto out; + } retry: if (card->quirks & MMC_QUIRK_INAND_CMD38) { err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, @@ -904,25 +910,41 @@ retry: INAND_CMD38_ARG_SECERASE, 0); if (err) - goto out; + goto out_retry; } + err = mmc_erase(card, from, nr, arg); - if (!err && arg == MMC_SECURE_TRIM1_ARG) { + if (err == -EIO) + goto out_retry; + if (err) + goto out; + + if (arg == MMC_SECURE_TRIM1_ARG) { if (card->quirks & MMC_QUIRK_INAND_CMD38) { err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, INAND_CMD38_ARG_EXT_CSD, INAND_CMD38_ARG_SECTRIM2, 0); if (err) - goto out; + goto out_retry; } + err = mmc_erase(card, from, nr, MMC_SECURE_TRIM2_ARG); + if (err == -EIO) + goto out_retry; + if (err) + goto out; } -out: - if (err == -EIO && !mmc_blk_reset(md, card->host, type)) + + if (mmc_can_sanitize(card)) + err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, + EXT_CSD_SANITIZE_START, 1, 0); +out_retry: + if (err && !mmc_blk_reset(md, card->host, type)) goto retry; if (!err) mmc_blk_reset_success(md, type); +out: spin_lock_irq(&md->lock); __blk_end_request(req, err, blk_rq_bytes(req)); spin_unlock_irq(&md->lock); diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 83db5ef..e541efb 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -1702,6 +1702,8 @@ EXPORT_SYMBOL(mmc_can_discard); int mmc_can_sanitize(struct mmc_card *card) { + if (!mmc_can_trim(card) && !mmc_can_erase(card)) + return 0; if (card->ext_csd.sec_feature_support & EXT_CSD_SEC_SANITIZE) return 1; return 0; -- cgit v0.10.2 From b6d085f6f59108508c1eea9c5251deb765350c50 Mon Sep 17 00:00:00 2001 From: Chris Ball Date: Tue, 10 Apr 2012 09:57:36 -0400 Subject: mmc: omap_hsmmc: build fix for CONFIG_OF=y and CONFIG_MMC_OMAP_HS=m Commit 46856a68dc ("mmc: omap_hsmmc: Convert hsmmc driver to use device tree") introduced in 3.4-rc1 has a missing semi-colon, causing: drivers/mmc/host/omap_hsmmc.c:1745: error: expected ',' or ';' before 'extern' Reported-by: Russell King Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 5c2b1c1..cfd049c 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -1741,7 +1741,7 @@ static const struct of_device_id omap_mmc_of_match[] = { .data = &omap4_reg_offset, }, {}, -} +}; MODULE_DEVICE_TABLE(of, omap_mmc_of_match); static struct omap_mmc_platform_data *of_get_hsmmc_pdata(struct device *dev) -- cgit v0.10.2 From 4d048f915f32c8455605b106aa0de2cf68a71903 Mon Sep 17 00:00:00 2001 From: Rajendra Nayak Date: Wed, 11 Apr 2012 15:33:13 +0530 Subject: mmc: omap_hsmmc: Get rid of of_have_populated_dt() usage of_have_populated_dt() is not expected to be used in drivers but instead only in early platform init code. Drivers on the other hand should rely on dev->of_node or of_match_device(). Besides usage of of_have_populated_dt() also throws up build error as below which was reported by Balaji TK, when omap_hsmmc is built as a module. ERROR: "allnodes" [drivers/mmc/host/omap_hsmmc.ko] undefined! make[1]: *** [__modpost] Error 1 make: *** [modules] Error 2 So get rid of all of_have_populated_dt() usage in omap_hsmmc driver and instead use dev->of_node to make the same dicisions as earlier. Signed-off-by: Rajendra Nayak Reported-by: Benoit Cousson Cc: Sebastian Andrzej Siewior Acked-by: Rob Herring Reviewed-by: Balaji T K Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index cfd049c..56d4499 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -249,7 +249,7 @@ static int omap_hsmmc_set_power(struct device *dev, int slot, int power_on, * the pbias cell programming support is still missing when * booting with Device tree */ - if (of_have_populated_dt() && !vdd) + if (dev->of_node && !vdd) return 0; if (mmc_slot(host).before_set_reg) @@ -1549,7 +1549,7 @@ static void omap_hsmmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) * can't be allowed when booting with device * tree. */ - (!of_have_populated_dt())) { + !host->dev->of_node) { /* * The mmc_select_voltage fn of the core does * not seem to set the power_mode to -- cgit v0.10.2 From a46ef99d80817a167477ed1c8b4d90ee0c2e726f Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 20 Apr 2012 16:20:01 -0700 Subject: VM: add "vm_munmap()" helper function Like the vm_brk() function, this is the same as "do_munmap()", except it does the VM locking for the caller. Signed-off-by: Linus Torvalds diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index 9d0fd7d..2777310 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c @@ -605,9 +605,9 @@ pfm_unprotect_ctx_ctxsw(pfm_context_t *x, unsigned long f) } static inline unsigned int -pfm_do_munmap(struct mm_struct *mm, unsigned long addr, size_t len, int acct) +pfm_vm_munmap(struct mm_struct *mm, unsigned long addr, size_t len) { - return do_munmap(mm, addr, len); + return vm_munmap(mm, addr, len); } static inline unsigned long @@ -1473,13 +1473,8 @@ pfm_remove_smpl_mapping(struct task_struct *task, void *vaddr, unsigned long siz /* * does the actual unmapping */ - down_write(&task->mm->mmap_sem); - - DPRINT(("down_write done smpl_vaddr=%p size=%lu\n", vaddr, size)); + r = pfm_vm_munmap(task->mm, (unsigned long)vaddr, size); - r = pfm_do_munmap(task->mm, (unsigned long)vaddr, size, 0); - - up_write(&task->mm->mmap_sem); if (r !=0) { printk(KERN_ERR "perfmon: [%d] unable to unmap sampling buffer @%p size=%lu\n", task_pid_nr(task), vaddr, size); } diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c index 232df99..022e57a 100644 --- a/arch/sparc/kernel/sys_sparc_64.c +++ b/arch/sparc/kernel/sys_sparc_64.c @@ -566,15 +566,10 @@ out: SYSCALL_DEFINE2(64_munmap, unsigned long, addr, size_t, len) { - long ret; - if (invalid_64bit_range(addr, len)) return -EINVAL; - down_write(¤t->mm->mmap_sem); - ret = do_munmap(current->mm, addr, len); - up_write(¤t->mm->mmap_sem); - return ret; + return vm_munmap(current->mm, addr, len); } extern unsigned long do_mremap(unsigned long addr, diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 4044ce0..8beb9ce 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -6366,10 +6366,8 @@ void kvm_arch_commit_memory_region(struct kvm *kvm, if (!user_alloc && !old.user_alloc && old.rmap && !npages) { int ret; - down_write(¤t->mm->mmap_sem); - ret = do_munmap(current->mm, old.userspace_addr, + ret = vm_munmap(current->mm, old.userspace_addr, old.npages * PAGE_SIZE); - up_write(¤t->mm->mmap_sem); if (ret < 0) printk(KERN_WARNING "kvm_vm_ioctl_set_memory_region: " diff --git a/drivers/gpu/drm/i810/i810_dma.c b/drivers/gpu/drm/i810/i810_dma.c index 2c8a60c..b85337f 100644 --- a/drivers/gpu/drm/i810/i810_dma.c +++ b/drivers/gpu/drm/i810/i810_dma.c @@ -157,11 +157,9 @@ static int i810_unmap_buffer(struct drm_buf *buf) if (buf_priv->currently_mapped != I810_BUF_MAPPED) return -EINVAL; - down_write(¤t->mm->mmap_sem); - retcode = do_munmap(current->mm, + retcode = vm_munmap(current->mm, (unsigned long)buf_priv->virtual, (size_t) buf->total); - up_write(¤t->mm->mmap_sem); buf_priv->currently_mapped = I810_BUF_UNMAPPED; buf_priv->virtual = NULL; diff --git a/fs/aio.c b/fs/aio.c index da88760..99bd790 100644 --- a/fs/aio.c +++ b/fs/aio.c @@ -92,11 +92,8 @@ static void aio_free_ring(struct kioctx *ctx) for (i=0; inr_pages; i++) put_page(info->ring_pages[i]); - if (info->mmap_size) { - down_write(&ctx->mm->mmap_sem); - do_munmap(ctx->mm, info->mmap_base, info->mmap_size); - up_write(&ctx->mm->mmap_sem); - } + if (info->mmap_size) + vm_munmap(ctx->mm, info->mmap_base, info->mmap_size); if (info->ring_pages && info->ring_pages != info->internal_pages) kfree(info->ring_pages); diff --git a/include/linux/mm.h b/include/linux/mm.h index bfee4ad..cb61950 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1417,6 +1417,7 @@ extern int do_munmap(struct mm_struct *, unsigned long, size_t); /* These take the mm semaphore themselves */ extern unsigned long vm_brk(unsigned long, unsigned long); +extern int vm_munmap(struct mm_struct *, unsigned long, size_t); /* truncate.c */ extern void truncate_inode_pages(struct address_space *, loff_t); diff --git a/mm/mmap.c b/mm/mmap.c index df51891..4af45f5 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -2107,21 +2107,24 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len) return 0; } - EXPORT_SYMBOL(do_munmap); -SYSCALL_DEFINE2(munmap, unsigned long, addr, size_t, len) +int vm_munmap(struct mm_struct *mm, unsigned long start, size_t len) { int ret; - struct mm_struct *mm = current->mm; - - profile_munmap(addr); down_write(&mm->mmap_sem); - ret = do_munmap(mm, addr, len); + ret = do_munmap(mm, start, len); up_write(&mm->mmap_sem); return ret; } +EXPORT_SYMBOL(vm_munmap); + +SYSCALL_DEFINE2(munmap, unsigned long, addr, size_t, len) +{ + profile_munmap(addr); + return vm_munmap(current->mm, addr, len); +} static inline void verify_mm_writelocked(struct mm_struct *mm) { diff --git a/mm/nommu.c b/mm/nommu.c index 6341933..11a69b2 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -1709,16 +1709,21 @@ erase_whole_vma: } EXPORT_SYMBOL(do_munmap); -SYSCALL_DEFINE2(munmap, unsigned long, addr, size_t, len) +int vm_munmap(struct mm_struct *mm, unsigned long addr, size_t len) { int ret; - struct mm_struct *mm = current->mm; down_write(&mm->mmap_sem); ret = do_munmap(mm, addr, len); up_write(&mm->mmap_sem); return ret; } +EXPORT_SYMBOL(vm_munmap); + +SYSCALL_DEFINE2(munmap, unsigned long, addr, size_t, len) +{ + return vm_munmap(current->mm, addr, len); +} /* * release all the mappings made in a process's VM space -- cgit v0.10.2 From 6be5ceb02e98eaf6cfc4f8b12a896d04023f340d Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 20 Apr 2012 17:13:58 -0700 Subject: VM: add "vm_mmap()" helper function This continues the theme started with vm_brk() and vm_munmap(): vm_mmap() does the same thing as do_mmap(), but additionally does the required VM locking. This uninlines (and rewrites it to be clearer) do_mmap(), which sadly duplicates it in mm/mmap.c and mm/nommu.c. But that way we don't have to export our internal do_mmap_pgoff() function. Some day we hopefully don't have to export do_mmap() either, if all modular users can become the simpler vm_mmap() instead. We're actually very close to that already, with the notable exception of the (broken) use in i810, and a couple of stragglers in binfmt_elf. Signed-off-by: Linus Torvalds diff --git a/arch/tile/kernel/single_step.c b/arch/tile/kernel/single_step.c index 9efbc13..89529c9 100644 --- a/arch/tile/kernel/single_step.c +++ b/arch/tile/kernel/single_step.c @@ -346,12 +346,10 @@ void single_step_once(struct pt_regs *regs) } /* allocate a cache line of writable, executable memory */ - down_write(¤t->mm->mmap_sem); - buffer = (void __user *) do_mmap(NULL, 0, 64, + buffer = (void __user *) vm_mmap(NULL, 0, 64, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0); - up_write(¤t->mm->mmap_sem); if (IS_ERR((void __force *)buffer)) { kfree(state); diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c index b6817ee..4824fb4 100644 --- a/arch/x86/ia32/ia32_aout.c +++ b/arch/x86/ia32/ia32_aout.c @@ -379,26 +379,22 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs) goto beyond_if; } - down_write(¤t->mm->mmap_sem); - error = do_mmap(bprm->file, N_TXTADDR(ex), ex.a_text, + error = vm_mmap(bprm->file, N_TXTADDR(ex), ex.a_text, PROT_READ | PROT_EXEC, MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE | MAP_32BIT, fd_offset); - up_write(¤t->mm->mmap_sem); if (error != N_TXTADDR(ex)) { send_sig(SIGKILL, current, 0); return error; } - down_write(¤t->mm->mmap_sem); - error = do_mmap(bprm->file, N_DATADDR(ex), ex.a_data, + error = vm_mmap(bprm->file, N_DATADDR(ex), ex.a_data, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE | MAP_32BIT, fd_offset + ex.a_text); - up_write(¤t->mm->mmap_sem); if (error != N_DATADDR(ex)) { send_sig(SIGKILL, current, 0); return error; @@ -482,12 +478,10 @@ static int load_aout_library(struct file *file) goto out; } /* Now use mmap to map the library into memory. */ - down_write(¤t->mm->mmap_sem); - error = do_mmap(file, start_addr, ex.a_text + ex.a_data, + error = vm_mmap(file, start_addr, ex.a_text + ex.a_data, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_32BIT, N_TXTOFF(ex)); - up_write(¤t->mm->mmap_sem); retval = error; if (error != start_addr) goto out; diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 8beb9ce..1457be3 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -6336,13 +6336,11 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm, if (npages && !old.rmap) { unsigned long userspace_addr; - down_write(¤t->mm->mmap_sem); - userspace_addr = do_mmap(NULL, 0, + userspace_addr = vm_mmap(NULL, 0, npages * PAGE_SIZE, PROT_READ | PROT_WRITE, map_flags, 0); - up_write(¤t->mm->mmap_sem); if (IS_ERR((void *)userspace_addr)) return PTR_ERR((void *)userspace_addr); diff --git a/drivers/gpu/drm/drm_bufs.c b/drivers/gpu/drm/drm_bufs.c index 30372f7..348b367 100644 --- a/drivers/gpu/drm/drm_bufs.c +++ b/drivers/gpu/drm/drm_bufs.c @@ -1510,8 +1510,8 @@ int drm_freebufs(struct drm_device *dev, void *data, * \param arg pointer to a drm_buf_map structure. * \return zero on success or a negative number on failure. * - * Maps the AGP, SG or PCI buffer region with do_mmap(), and copies information - * about each buffer into user space. For PCI buffers, it calls do_mmap() with + * Maps the AGP, SG or PCI buffer region with vm_mmap(), and copies information + * about each buffer into user space. For PCI buffers, it calls vm_mmap() with * offset equal to 0, which drm_mmap() interpretes as PCI buffers and calls * drm_mmap_dma(). */ @@ -1553,18 +1553,14 @@ int drm_mapbufs(struct drm_device *dev, void *data, retcode = -EINVAL; goto done; } - down_write(¤t->mm->mmap_sem); - virtual = do_mmap(file_priv->filp, 0, map->size, + virtual = vm_mmap(file_priv->filp, 0, map->size, PROT_READ | PROT_WRITE, MAP_SHARED, token); - up_write(¤t->mm->mmap_sem); } else { - down_write(¤t->mm->mmap_sem); - virtual = do_mmap(file_priv->filp, 0, dma->byte_count, + virtual = vm_mmap(file_priv->filp, 0, dma->byte_count, PROT_READ | PROT_WRITE, MAP_SHARED, 0); - up_write(¤t->mm->mmap_sem); } if (virtual > -1024UL) { /* Real error */ diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c index 26d5197..392ce71 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c @@ -581,10 +581,8 @@ int exynos_drm_gem_mmap_ioctl(struct drm_device *dev, void *data, obj->filp->f_op = &exynos_drm_gem_fops; obj->filp->private_data = obj; - down_write(¤t->mm->mmap_sem); - addr = do_mmap(obj->filp, 0, args->size, + addr = vm_mmap(obj->filp, 0, args->size, PROT_READ | PROT_WRITE, MAP_SHARED, 0); - up_write(¤t->mm->mmap_sem); drm_gem_object_unreference_unlocked(obj); diff --git a/drivers/gpu/drm/i810/i810_dma.c b/drivers/gpu/drm/i810/i810_dma.c index b85337f..a4ba453 100644 --- a/drivers/gpu/drm/i810/i810_dma.c +++ b/drivers/gpu/drm/i810/i810_dma.c @@ -129,6 +129,7 @@ static int i810_map_buffer(struct drm_buf *buf, struct drm_file *file_priv) if (buf_priv->currently_mapped == I810_BUF_MAPPED) return -EINVAL; + /* This is all entirely broken */ down_write(¤t->mm->mmap_sem); old_fops = file_priv->filp->f_op; file_priv->filp->f_op = &i810_buffer_fops; diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 0e3c6ac..0d1e4b7 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1087,11 +1087,9 @@ i915_gem_mmap_ioctl(struct drm_device *dev, void *data, if (obj == NULL) return -ENOENT; - down_write(¤t->mm->mmap_sem); - addr = do_mmap(obj->filp, 0, args->size, + addr = vm_mmap(obj->filp, 0, args->size, PROT_READ | PROT_WRITE, MAP_SHARED, args->offset); - up_write(¤t->mm->mmap_sem); drm_gem_object_unreference_unlocked(obj); if (IS_ERR((void *)addr)) return addr; diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c index 8852749..d146e18 100644 --- a/fs/binfmt_aout.c +++ b/fs/binfmt_aout.c @@ -319,24 +319,20 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs) goto beyond_if; } - down_write(¤t->mm->mmap_sem); - error = do_mmap(bprm->file, N_TXTADDR(ex), ex.a_text, + error = vm_mmap(bprm->file, N_TXTADDR(ex), ex.a_text, PROT_READ | PROT_EXEC, MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE, fd_offset); - up_write(¤t->mm->mmap_sem); if (error != N_TXTADDR(ex)) { send_sig(SIGKILL, current, 0); return error; } - down_write(¤t->mm->mmap_sem); - error = do_mmap(bprm->file, N_DATADDR(ex), ex.a_data, + error = vm_mmap(bprm->file, N_DATADDR(ex), ex.a_data, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE, fd_offset + ex.a_text); - up_write(¤t->mm->mmap_sem); if (error != N_DATADDR(ex)) { send_sig(SIGKILL, current, 0); return error; @@ -417,12 +413,10 @@ static int load_aout_library(struct file *file) goto out; } /* Now use mmap to map the library into memory. */ - down_write(¤t->mm->mmap_sem); - error = do_mmap(file, start_addr, ex.a_text + ex.a_data, + error = vm_mmap(file, start_addr, ex.a_text + ex.a_data, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE, N_TXTOFF(ex)); - up_write(¤t->mm->mmap_sem); retval = error; if (error != start_addr) goto out; diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c index 0708a0b..16f7354 100644 --- a/fs/binfmt_elf.c +++ b/fs/binfmt_elf.c @@ -958,10 +958,8 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs) and some applications "depend" upon this behavior. Since we do not have the power to recompile these, we emulate the SVr4 behavior. Sigh. */ - down_write(¤t->mm->mmap_sem); - error = do_mmap(NULL, 0, PAGE_SIZE, PROT_READ | PROT_EXEC, + error = vm_mmap(NULL, 0, PAGE_SIZE, PROT_READ | PROT_EXEC, MAP_FIXED | MAP_PRIVATE, 0); - up_write(¤t->mm->mmap_sem); } #ifdef ELF_PLAT_INIT @@ -1046,8 +1044,7 @@ static int load_elf_library(struct file *file) eppnt++; /* Now use mmap to map the library into memory. */ - down_write(¤t->mm->mmap_sem); - error = do_mmap(file, + error = vm_mmap(file, ELF_PAGESTART(eppnt->p_vaddr), (eppnt->p_filesz + ELF_PAGEOFFSET(eppnt->p_vaddr)), @@ -1055,7 +1052,6 @@ static int load_elf_library(struct file *file) MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE, (eppnt->p_offset - ELF_PAGEOFFSET(eppnt->p_vaddr))); - up_write(¤t->mm->mmap_sem); if (error != ELF_PAGESTART(eppnt->p_vaddr)) goto out_free_ph; diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c index 9bd5612..d390a0f 100644 --- a/fs/binfmt_elf_fdpic.c +++ b/fs/binfmt_elf_fdpic.c @@ -390,21 +390,17 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm, (executable_stack == EXSTACK_DEFAULT && VM_STACK_FLAGS & VM_EXEC)) stack_prot |= PROT_EXEC; - down_write(¤t->mm->mmap_sem); - current->mm->start_brk = do_mmap(NULL, 0, stack_size, stack_prot, + current->mm->start_brk = vm_mmap(NULL, 0, stack_size, stack_prot, MAP_PRIVATE | MAP_ANONYMOUS | MAP_UNINITIALIZED | MAP_GROWSDOWN, 0); if (IS_ERR_VALUE(current->mm->start_brk)) { - up_write(¤t->mm->mmap_sem); retval = current->mm->start_brk; current->mm->start_brk = 0; goto error_kill; } - up_write(¤t->mm->mmap_sem); - current->mm->brk = current->mm->start_brk; current->mm->context.end_brk = current->mm->start_brk; current->mm->context.end_brk += @@ -955,10 +951,8 @@ static int elf_fdpic_map_file_constdisp_on_uclinux( if (params->flags & ELF_FDPIC_FLAG_EXECUTABLE) mflags |= MAP_EXECUTABLE; - down_write(&mm->mmap_sem); - maddr = do_mmap(NULL, load_addr, top - base, + maddr = vm_mmap(NULL, load_addr, top - base, PROT_READ | PROT_WRITE | PROT_EXEC, mflags, 0); - up_write(&mm->mmap_sem); if (IS_ERR_VALUE(maddr)) return (int) maddr; @@ -1096,10 +1090,8 @@ static int elf_fdpic_map_file_by_direct_mmap(struct elf_fdpic_params *params, /* create the mapping */ disp = phdr->p_vaddr & ~PAGE_MASK; - down_write(&mm->mmap_sem); - maddr = do_mmap(file, maddr, phdr->p_memsz + disp, prot, flags, + maddr = vm_mmap(file, maddr, phdr->p_memsz + disp, prot, flags, phdr->p_offset - disp); - up_write(&mm->mmap_sem); kdebug("mmap[%d] sz=%lx pr=%x fl=%x of=%lx --> %08lx", loop, phdr->p_memsz + disp, prot, flags, @@ -1143,10 +1135,8 @@ static int elf_fdpic_map_file_by_direct_mmap(struct elf_fdpic_params *params, unsigned long xmaddr; flags |= MAP_FIXED | MAP_ANONYMOUS; - down_write(&mm->mmap_sem); - xmaddr = do_mmap(NULL, xaddr, excess - excess1, + xmaddr = vm_mmap(NULL, xaddr, excess - excess1, prot, flags, 0); - up_write(&mm->mmap_sem); kdebug("mmap[%d] " " ad=%lx sz=%lx pr=%x fl=%x of=0 --> %08lx", diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c index 024d20e..6b2daf9 100644 --- a/fs/binfmt_flat.c +++ b/fs/binfmt_flat.c @@ -542,10 +542,8 @@ static int load_flat_file(struct linux_binprm * bprm, */ DBG_FLT("BINFMT_FLAT: ROM mapping of file (we hope)\n"); - down_write(¤t->mm->mmap_sem); - textpos = do_mmap(bprm->file, 0, text_len, PROT_READ|PROT_EXEC, + textpos = vm_mmap(bprm->file, 0, text_len, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_EXECUTABLE, 0); - up_write(¤t->mm->mmap_sem); if (!textpos || IS_ERR_VALUE(textpos)) { if (!textpos) textpos = (unsigned long) -ENOMEM; @@ -556,10 +554,8 @@ static int load_flat_file(struct linux_binprm * bprm, len = data_len + extra + MAX_SHARED_LIBS * sizeof(unsigned long); len = PAGE_ALIGN(len); - down_write(¤t->mm->mmap_sem); - realdatastart = do_mmap(0, 0, len, + realdatastart = vm_mmap(0, 0, len, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE, 0); - up_write(¤t->mm->mmap_sem); if (realdatastart == 0 || IS_ERR_VALUE(realdatastart)) { if (!realdatastart) @@ -603,10 +599,8 @@ static int load_flat_file(struct linux_binprm * bprm, len = text_len + data_len + extra + MAX_SHARED_LIBS * sizeof(unsigned long); len = PAGE_ALIGN(len); - down_write(¤t->mm->mmap_sem); - textpos = do_mmap(0, 0, len, + textpos = vm_mmap(0, 0, len, PROT_READ | PROT_EXEC | PROT_WRITE, MAP_PRIVATE, 0); - up_write(¤t->mm->mmap_sem); if (!textpos || IS_ERR_VALUE(textpos)) { if (!textpos) diff --git a/fs/binfmt_som.c b/fs/binfmt_som.c index e4fc746..4517aaf 100644 --- a/fs/binfmt_som.c +++ b/fs/binfmt_som.c @@ -147,10 +147,8 @@ static int map_som_binary(struct file *file, code_size = SOM_PAGEALIGN(hpuxhdr->exec_tsize); current->mm->start_code = code_start; current->mm->end_code = code_start + code_size; - down_write(¤t->mm->mmap_sem); - retval = do_mmap(file, code_start, code_size, prot, + retval = vm_mmap(file, code_start, code_size, prot, flags, SOM_PAGESTART(hpuxhdr->exec_tfile)); - up_write(¤t->mm->mmap_sem); if (retval < 0 && retval > -1024) goto out; @@ -158,20 +156,16 @@ static int map_som_binary(struct file *file, data_size = SOM_PAGEALIGN(hpuxhdr->exec_dsize); current->mm->start_data = data_start; current->mm->end_data = bss_start = data_start + data_size; - down_write(¤t->mm->mmap_sem); - retval = do_mmap(file, data_start, data_size, + retval = vm_mmap(file, data_start, data_size, prot | PROT_WRITE, flags, SOM_PAGESTART(hpuxhdr->exec_dfile)); - up_write(¤t->mm->mmap_sem); if (retval < 0 && retval > -1024) goto out; som_brk = bss_start + SOM_PAGEALIGN(hpuxhdr->exec_bsize); current->mm->start_brk = current->mm->brk = som_brk; - down_write(¤t->mm->mmap_sem); - retval = do_mmap(NULL, bss_start, som_brk - bss_start, + retval = vm_mmap(NULL, bss_start, som_brk - bss_start, prot | PROT_WRITE, MAP_FIXED | MAP_PRIVATE, 0); - up_write(¤t->mm->mmap_sem); if (retval > 0 || retval < -1024) retval = 0; out: diff --git a/include/linux/mm.h b/include/linux/mm.h index cb61950..86a692c 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1393,31 +1393,20 @@ extern int install_special_mapping(struct mm_struct *mm, extern unsigned long get_unmapped_area(struct file *, unsigned long, unsigned long, unsigned long, unsigned long); -extern unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, - unsigned long len, unsigned long prot, - unsigned long flag, unsigned long pgoff); extern unsigned long mmap_region(struct file *file, unsigned long addr, unsigned long len, unsigned long flags, vm_flags_t vm_flags, unsigned long pgoff); - -static inline unsigned long do_mmap(struct file *file, unsigned long addr, - unsigned long len, unsigned long prot, - unsigned long flag, unsigned long offset) -{ - unsigned long ret = -EINVAL; - if ((offset + PAGE_ALIGN(len)) < offset) - goto out; - if (!(offset & ~PAGE_MASK)) - ret = do_mmap_pgoff(file, addr, len, prot, flag, offset >> PAGE_SHIFT); -out: - return ret; -} - +extern unsigned long do_mmap(struct file *, unsigned long, + unsigned long, unsigned long, + unsigned long, unsigned long); extern int do_munmap(struct mm_struct *, unsigned long, size_t); /* These take the mm semaphore themselves */ extern unsigned long vm_brk(unsigned long, unsigned long); extern int vm_munmap(struct mm_struct *, unsigned long, size_t); +extern unsigned long vm_mmap(struct file *, unsigned long, + unsigned long, unsigned long, + unsigned long, unsigned long); /* truncate.c */ extern void truncate_inode_pages(struct address_space *, loff_t); diff --git a/mm/mmap.c b/mm/mmap.c index 4af45f5..b38b47e 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -953,7 +953,7 @@ static inline unsigned long round_hint_to_min(unsigned long hint) * The caller must hold down_write(¤t->mm->mmap_sem). */ -unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, +static unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long pgoff) { @@ -1089,7 +1089,32 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, return mmap_region(file, addr, len, flags, vm_flags, pgoff); } -EXPORT_SYMBOL(do_mmap_pgoff); + +unsigned long do_mmap(struct file *file, unsigned long addr, + unsigned long len, unsigned long prot, + unsigned long flag, unsigned long offset) +{ + if (unlikely(offset + PAGE_ALIGN(len) < offset)) + return -EINVAL; + if (unlikely(offset & ~PAGE_MASK)) + return -EINVAL; + return do_mmap_pgoff(file, addr, len, prot, flag, offset >> PAGE_SHIFT); +} +EXPORT_SYMBOL(do_mmap); + +unsigned long vm_mmap(struct file *file, unsigned long addr, + unsigned long len, unsigned long prot, + unsigned long flag, unsigned long offset) +{ + unsigned long ret; + struct mm_struct *mm = current->mm; + + down_write(&mm->mmap_sem); + ret = do_mmap(file, addr, len, prot, flag, offset); + up_write(&mm->mmap_sem); + return ret; +} +EXPORT_SYMBOL(vm_mmap); SYSCALL_DEFINE6(mmap_pgoff, unsigned long, addr, unsigned long, len, unsigned long, prot, unsigned long, flags, diff --git a/mm/nommu.c b/mm/nommu.c index 11a69b2..dd00383 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -1233,7 +1233,7 @@ enomem: /* * handle mapping creation for uClinux */ -unsigned long do_mmap_pgoff(struct file *file, +static unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, unsigned long len, unsigned long prot, @@ -1470,7 +1470,32 @@ error_getting_region: show_free_areas(0); return -ENOMEM; } -EXPORT_SYMBOL(do_mmap_pgoff); + +unsigned long do_mmap(struct file *file, unsigned long addr, + unsigned long len, unsigned long prot, + unsigned long flag, unsigned long offset) +{ + if (unlikely(offset + PAGE_ALIGN(len) < offset)) + return -EINVAL; + if (unlikely(offset & ~PAGE_MASK)) + return -EINVAL; + return do_mmap_pgoff(file, addr, len, prot, flag, offset >> PAGE_SHIFT); +} +EXPORT_SYMBOL(do_mmap); + +unsigned long vm_mmap(struct file *file, unsigned long addr, + unsigned long len, unsigned long prot, + unsigned long flag, unsigned long offset) +{ + unsigned long ret; + struct mm_struct *mm = current->mm; + + down_write(&mm->mmap_sem); + ret = do_mmap(file, addr, len, prot, flag, offset); + up_write(&mm->mmap_sem); + return ret; +} +EXPORT_SYMBOL(vm_mmap); SYSCALL_DEFINE6(mmap_pgoff, unsigned long, addr, unsigned long, len, unsigned long, prot, unsigned long, flags, -- cgit v0.10.2 From 32d317c60e56c2a34463b51fc0336cc96b3e1735 Mon Sep 17 00:00:00 2001 From: Chuanxiao Dong Date: Wed, 11 Apr 2012 19:54:38 +0800 Subject: mmc: remove MMC bus legacy suspend/resume method MMC bus is using legacy suspend/resume method, which is not compatible if runtime pm callbacks are used. In this scenario, MMC bus suspend/resume callbacks cannot be called when system entering S3. So change to use the new defined dev_pm_ops for system sleeping mode. Tested on AM335x Platform. Solves major issue/crash reported at http://www.mail-archive.com/linux-omap@vger.kernel.org/msg65425.html Signed-off-by: Chuanxiao Dong Tested-by: Hebbar, Gururaja Acked-by: Linus Walleij Acked-by: Ulf Hansson Signed-off-by: Chris Ball diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index 4232bc4..dabec55 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -1824,7 +1824,7 @@ static void mmc_blk_remove(struct mmc_card *card) } #ifdef CONFIG_PM -static int mmc_blk_suspend(struct mmc_card *card, pm_message_t state) +static int mmc_blk_suspend(struct mmc_card *card) { struct mmc_blk_data *part_md; struct mmc_blk_data *md = mmc_get_drvdata(card); diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c index 3f60606..c60cee9 100644 --- a/drivers/mmc/core/bus.c +++ b/drivers/mmc/core/bus.c @@ -122,14 +122,14 @@ static int mmc_bus_remove(struct device *dev) return 0; } -static int mmc_bus_suspend(struct device *dev, pm_message_t state) +static int mmc_bus_suspend(struct device *dev) { struct mmc_driver *drv = to_mmc_driver(dev->driver); struct mmc_card *card = mmc_dev_to_card(dev); int ret = 0; if (dev->driver && drv->suspend) - ret = drv->suspend(card, state); + ret = drv->suspend(card); return ret; } @@ -165,20 +165,14 @@ static int mmc_runtime_idle(struct device *dev) return pm_runtime_suspend(dev); } +#endif /* !CONFIG_PM_RUNTIME */ + static const struct dev_pm_ops mmc_bus_pm_ops = { - .runtime_suspend = mmc_runtime_suspend, - .runtime_resume = mmc_runtime_resume, - .runtime_idle = mmc_runtime_idle, + SET_RUNTIME_PM_OPS(mmc_runtime_suspend, mmc_runtime_resume, + mmc_runtime_idle) + SET_SYSTEM_SLEEP_PM_OPS(mmc_bus_suspend, mmc_bus_resume) }; -#define MMC_PM_OPS_PTR (&mmc_bus_pm_ops) - -#else /* !CONFIG_PM_RUNTIME */ - -#define MMC_PM_OPS_PTR NULL - -#endif /* !CONFIG_PM_RUNTIME */ - static struct bus_type mmc_bus_type = { .name = "mmc", .dev_attrs = mmc_dev_attrs, @@ -186,9 +180,7 @@ static struct bus_type mmc_bus_type = { .uevent = mmc_bus_uevent, .probe = mmc_bus_probe, .remove = mmc_bus_remove, - .suspend = mmc_bus_suspend, - .resume = mmc_bus_resume, - .pm = MMC_PM_OPS_PTR, + .pm = &mmc_bus_pm_ops, }; int mmc_register_bus(void) diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 01beae7..629b823 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -481,7 +481,7 @@ struct mmc_driver { struct device_driver drv; int (*probe)(struct mmc_card *); void (*remove)(struct mmc_card *); - int (*suspend)(struct mmc_card *, pm_message_t); + int (*suspend)(struct mmc_card *); int (*resume)(struct mmc_card *); }; -- cgit v0.10.2 From a99aa9b9b4f4f3e496d17a1b4e0ff63fb0c9f31d Mon Sep 17 00:00:00 2001 From: Seungwon Jeon Date: Tue, 10 Apr 2012 09:53:32 +0900 Subject: mmc: dw_mmc: Fix switch from DMA to PIO When dw_mci_pre_dma_transfer returns failure in some reasons, dw_mci_submit_data will prepare to switch the PIO mode from DMA. After switching to PIO mode, DMA(IDMAC in particular) is still enabled. This makes the corruption in handling interrupt and the driver lock-up. Signed-off-by: Seungwon Jeon Acked-by: Will Newton Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index bf3c9b4..f3b0fcd 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -526,8 +526,10 @@ static int dw_mci_submit_data_dma(struct dw_mci *host, struct mmc_data *data) return -ENODEV; sg_len = dw_mci_pre_dma_transfer(host, data, 0); - if (sg_len < 0) + if (sg_len < 0) { + host->dma_ops->stop(host); return sg_len; + } host->using_dma = 1; -- cgit v0.10.2 From 87b87a3fc0eec58d95e4216392f889a26439ad22 Mon Sep 17 00:00:00 2001 From: Daniel Drake Date: Tue, 10 Apr 2012 00:14:20 +0100 Subject: mmc: sdhci: refine non-removable card checking for card detection Commit c79396c191bc19 ("mmc: sdhci: prevent card detection activity for non-removable cards") disables card detection where the cards are marked as non-removable. This makes sense, but the implementation detail of calling mmc_card_is_removable() causes some problems, because mmc_card_is_removable() is overloaded with CONFIG_MMC_UNSAFE_RESUME semantics. In the OLPC XO case, we need CONFIG_MMC_UNSAFE_RESUME because our root filesystem is stored on SD, but we also have external SD card slots where we want automatic card detection. Refine the check to only apply to hosts marked as MMC_CAP_NONREMOVABLE, which is defined to mean that the card is *really* nonremovable. This could be revisited in future if we find a way to improve CONFIG_MMC_UNSAFE_RESUME semantics. Signed-off-by: Daniel Drake Acked-by: Chuanxiao Dong [stable@: please apply to 3.3-stable] Cc: stable Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 9aa77f3..ccefdeb 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -147,7 +147,7 @@ static void sdhci_set_card_detection(struct sdhci_host *host, bool enable) u32 present, irqs; if ((host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) || - !mmc_card_is_removable(host->mmc)) + (host->mmc->caps & MMC_CAP_NONREMOVABLE)) return; present = sdhci_readl(host, SDHCI_PRESENT_STATE) & -- cgit v0.10.2 From 5ca6518832ac913ac277b50ceddda8372dbf7bea Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 17 Apr 2012 13:03:38 -0700 Subject: mmc: cd-gpio: Include header to pickup exported symbol prototypes Include the linux/mmc/cd-gpio.h header to pickup the prototypes for the two exported symbols. This quiets the sparse warnings: warning: symbol 'mmc_cd_gpio_request' was not declared. Should it be static? warning: symbol 'mmc_cd_gpio_free' was not declared. Should it be static? Signed-off-by: H Hartley Sweeten Acked-by: Guennadi Liakhovetski Acked-by: Venkatraman S Signed-off-by: Chris Ball diff --git a/drivers/mmc/core/cd-gpio.c b/drivers/mmc/core/cd-gpio.c index 29de31e..2c14be7 100644 --- a/drivers/mmc/core/cd-gpio.c +++ b/drivers/mmc/core/cd-gpio.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include #include -- cgit v0.10.2 From b89152824f993a9572b47eb31f4579feadeac34c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Eric=20B=C3=A9nard?= Date: Wed, 18 Apr 2012 02:30:20 +0200 Subject: mmc: unbreak sdhci-esdhc-imx on i.MX25 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This was broken by me in 37865fe91582582a6f6c00652f6a2b1ff71f8a78 ("mmc: sdhci-esdhc-imx: fix timeout on i.MX's sdhci") where more extensive tests would have shown that read or write of data to the card were failing (even if the partition table was correctly read). Signed-off-by: Eric Bénard Acked-by: Wolfram Sang Cc: stable Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index 6193a0d..8abdaf6 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -467,8 +467,7 @@ static int __devinit sdhci_esdhc_imx_probe(struct platform_device *pdev) clk_prepare_enable(clk); pltfm_host->clk = clk; - if (!is_imx25_esdhc(imx_data)) - host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL; + host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL; if (is_imx25_esdhc(imx_data) || is_imx35_esdhc(imx_data)) /* Fix errata ENGcm07207 present on i.MX25 and i.MX35 */ -- cgit v0.10.2 From 5699b0ca05f781d496d20ba87f916bd9eec7ea6a Mon Sep 17 00:00:00 2001 From: Thomas Abraham Date: Fri, 20 Apr 2012 17:26:23 -0700 Subject: ARM: EXYNOS: Fix incorrect initialization of GIC Use the of_irq_init() call to setup the gic which also properly registers the gic device node pointer with gic irq domain, without which all interrupt specifier translations for gic fail. Signed-off-by: Thomas Abraham Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c index b5e7f00..6c0e4f5 100644 --- a/arch/arm/mach-exynos/common.c +++ b/arch/arm/mach-exynos/common.c @@ -547,7 +547,7 @@ void __init exynos5_init_irq(void) { int irq; - gic_init(0, IRQ_PPI(0), S5P_VA_GIC_DIST, S5P_VA_GIC_CPU); + of_irq_init(exynos4_dt_irq_match); for (irq = 0; irq < EXYNOS5_MAX_COMBINER_NR; irq++) { combiner_init(irq, (void __iomem *)S5P_VA_COMBINER(irq), -- cgit v0.10.2 From e1631f989e0c6c8d9b43a2dbdd1097f70da603a5 Mon Sep 17 00:00:00 2001 From: Jaehoon Chung Date: Wed, 18 Apr 2012 15:42:31 +0900 Subject: mmc: dw_mmc: prevent NULL dereference for dma_ops Now, dma_ops is assumed that use the IDMAC. But if dma_ops is assigned the pdata->dma_ops, we didn't ensure that callback function is defined. If the callback isn't defined, then we should run in PIO mode. Signed-off-by: Jaehoon Chung Signed-off-by: Kyungmin Park Acked-by: Will Newton Signed-off-by: Chris Ball diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index f3b0fcd..ab3fc46 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -1881,7 +1881,8 @@ static void dw_mci_init_dma(struct dw_mci *host) if (!host->dma_ops) goto no_dma; - if (host->dma_ops->init) { + if (host->dma_ops->init && host->dma_ops->start && + host->dma_ops->stop && host->dma_ops->cleanup) { if (host->dma_ops->init(host)) { dev_err(&host->dev, "%s: Unable to initialize " "DMA Controller.\n", __func__); -- cgit v0.10.2 From 7c5709194096beea1ab6e6db46768d70a068efb0 Mon Sep 17 00:00:00 2001 From: Ulf Hansson Date: Thu, 19 Apr 2012 11:55:25 +0200 Subject: mmc: core: Do not pre-claim host in suspend Since SDIO drivers may want to do some SDIO operations in their suspend callback functions, we must not keep the host claimed when calling them. Daniel Drake reported that libertas_sdio encountered a deadlock in its suspend function. Signed-off-by: Ulf Hansson Tested-by: Daniel Drake [stable@: please apply to 3.2-stable and 3.3-stable] Cc: stable Signed-off-by: Chris Ball diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index e541efb..ba821fe 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -2238,6 +2238,7 @@ int mmc_cache_ctrl(struct mmc_host *host, u8 enable) mmc_card_is_removable(host)) return err; + mmc_claim_host(host); if (card && mmc_card_mmc(card) && (card->ext_csd.cache_size > 0)) { enable = !!enable; @@ -2255,6 +2256,7 @@ int mmc_cache_ctrl(struct mmc_host *host, u8 enable) card->ext_csd.cache_ctrl = enable; } } + mmc_release_host(host); return err; } @@ -2272,49 +2274,32 @@ int mmc_suspend_host(struct mmc_host *host) cancel_delayed_work(&host->detect); mmc_flush_scheduled_work(); - if (mmc_try_claim_host(host)) { - err = mmc_cache_ctrl(host, 0); - mmc_release_host(host); - } else { - err = -EBUSY; - } + err = mmc_cache_ctrl(host, 0); if (err) goto out; mmc_bus_get(host); if (host->bus_ops && !host->bus_dead) { - /* - * A long response time is not acceptable for device drivers - * when doing suspend. Prevent mmc_claim_host in the suspend - * sequence, to potentially wait "forever" by trying to - * pre-claim the host. - */ - if (mmc_try_claim_host(host)) { - if (host->bus_ops->suspend) { - err = host->bus_ops->suspend(host); - } - mmc_release_host(host); + if (host->bus_ops->suspend) + err = host->bus_ops->suspend(host); - if (err == -ENOSYS || !host->bus_ops->resume) { - /* - * We simply "remove" the card in this case. - * It will be redetected on resume. (Calling - * bus_ops->remove() with a claimed host can - * deadlock.) - */ - if (host->bus_ops->remove) - host->bus_ops->remove(host); - mmc_claim_host(host); - mmc_detach_bus(host); - mmc_power_off(host); - mmc_release_host(host); - host->pm_flags = 0; - err = 0; - } - } else { - err = -EBUSY; + if (err == -ENOSYS || !host->bus_ops->resume) { + /* + * We simply "remove" the card in this case. + * It will be redetected on resume. (Calling + * bus_ops->remove() with a claimed host can + * deadlock.) + */ + if (host->bus_ops->remove) + host->bus_ops->remove(host); + mmc_claim_host(host); + mmc_detach_bus(host); + mmc_power_off(host); + mmc_release_host(host); + host->pm_flags = 0; + err = 0; } } mmc_bus_put(host); -- cgit v0.10.2 From 95b72eb0bdef6476b7e73061f0382adf46c5495a Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Fri, 20 Apr 2012 19:24:51 -0400 Subject: NFSv4: Ensure we do not reuse open owner names The NFSv4 spec is ambiguous about whether or not it is permissible to reuse open owner names, so play it safe. This patch adds a timestamp to the state_owner structure, and combines that with the IDA based uniquifier. Fixes a regression whereby the Linux server returns NFS4ERR_BAD_SEQID. Signed-off-by: Trond Myklebust diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index 97ecc86..b6db9e3 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -59,6 +59,7 @@ struct nfs_unique_id { #define NFS_SEQID_CONFIRMED 1 struct nfs_seqid_counter { + ktime_t create_time; int owner_id; int flags; u32 counter; diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index f875cf3..60d5f4c 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -838,7 +838,8 @@ static struct nfs4_opendata *nfs4_opendata_alloc(struct dentry *dentry, p->o_arg.open_flags = flags; p->o_arg.fmode = fmode & (FMODE_READ|FMODE_WRITE); p->o_arg.clientid = server->nfs_client->cl_clientid; - p->o_arg.id = sp->so_seqid.owner_id; + p->o_arg.id.create_time = ktime_to_ns(sp->so_seqid.create_time); + p->o_arg.id.uniquifier = sp->so_seqid.owner_id; p->o_arg.name = &dentry->d_name; p->o_arg.server = server; p->o_arg.bitmask = server->attr_bitmask; @@ -1466,8 +1467,7 @@ static void nfs4_open_prepare(struct rpc_task *task, void *calldata) goto unlock_no_action; rcu_read_unlock(); } - /* Update sequence id. */ - data->o_arg.id = sp->so_seqid.owner_id; + /* Update client id. */ data->o_arg.clientid = sp->so_server->nfs_client->cl_clientid; if (data->o_arg.claim == NFS4_OPEN_CLAIM_PREVIOUS) { task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_NOATTR]; diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 0f43414..3b07f09 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -393,6 +393,7 @@ nfs4_remove_state_owner_locked(struct nfs4_state_owner *sp) static void nfs4_init_seqid_counter(struct nfs_seqid_counter *sc) { + sc->create_time = ktime_get(); sc->flags = 0; sc->counter = 0; spin_lock_init(&sc->lock); diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index c74fdb1..77fc5f9 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -74,7 +74,7 @@ static int nfs4_stat_to_errno(int); /* lock,open owner id: * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) */ -#define open_owner_id_maxsz (1 + 1 + 4) +#define open_owner_id_maxsz (1 + 2 + 1 + 1 + 2) #define lock_owner_id_maxsz (1 + 1 + 4) #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) @@ -1340,12 +1340,13 @@ static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_opena */ encode_nfs4_seqid(xdr, arg->seqid); encode_share_access(xdr, arg->fmode); - p = reserve_space(xdr, 32); + p = reserve_space(xdr, 36); p = xdr_encode_hyper(p, arg->clientid); - *p++ = cpu_to_be32(20); + *p++ = cpu_to_be32(24); p = xdr_encode_opaque_fixed(p, "open id:", 8); *p++ = cpu_to_be32(arg->server->s_dev); - xdr_encode_hyper(p, arg->id); + *p++ = cpu_to_be32(arg->id.uniquifier); + xdr_encode_hyper(p, arg->id.create_time); } static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index bfd0d1b..7ba3551 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -312,6 +312,11 @@ struct nfs4_layoutreturn { int rpc_status; }; +struct stateowner_id { + __u64 create_time; + __u32 uniquifier; +}; + /* * Arguments to the open call. */ @@ -321,7 +326,7 @@ struct nfs_openargs { int open_flags; fmode_t fmode; __u64 clientid; - __u64 id; + struct stateowner_id id; union { struct { struct iattr * attrs; /* UNCHECKED, GUARDED */ -- cgit v0.10.2 From 899c612d74d4a242158a4db20367388d6299c028 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Fri, 20 Apr 2012 22:34:49 -0700 Subject: Input: synaptics - fix regression with "image sensor" trackpads commit 7968a5dd492ccc38345013e534ad4c8d6eb60ed1 Input: synaptics - add support for Relative mode Accidentally broke support for advanced gestures (multitouch) on some trackpads such as the one in my ThinkPad X220 by incorretly changing the condition for enabling them. This restores it. Signed-off-by: Benjamin Herrenschmidt CC: stable@kernel.org [3.3] Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index 8081a0a..a4b14a4 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -274,7 +274,8 @@ static int synaptics_set_advanced_gesture_mode(struct psmouse *psmouse) static unsigned char param = 0xc8; struct synaptics_data *priv = psmouse->private; - if (!SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) + if (!(SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) || + SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c))) return 0; if (psmouse_sliced_command(psmouse, SYN_QUE_MODEL)) -- cgit v0.10.2 From 936af1576e4c24b466380fc2b8d93352161d13b0 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 20 Apr 2012 21:49:41 -0400 Subject: aio: don't bother with unmapping when aio_free_ring() is coming from exit_aio() ... since exit_mmap() is coming and it will munmap() everything anyway. In all other cases aio_free_ring() has ctx->mm == current->mm; moreover, all other callers of vm_munmap() have mm == current->mm, so this will allow us to get rid of mm argument of vm_munmap(). Signed-off-by: Al Viro diff --git a/fs/aio.c b/fs/aio.c index 99bd790..976e33d 100644 --- a/fs/aio.c +++ b/fs/aio.c @@ -92,8 +92,10 @@ static void aio_free_ring(struct kioctx *ctx) for (i=0; inr_pages; i++) put_page(info->ring_pages[i]); - if (info->mmap_size) + if (info->mmap_size) { + BUG_ON(ctx->mm != current->mm); vm_munmap(ctx->mm, info->mmap_base, info->mmap_size); + } if (info->ring_pages && info->ring_pages != info->internal_pages) kfree(info->ring_pages); @@ -386,6 +388,17 @@ void exit_aio(struct mm_struct *mm) "exit_aio:ioctx still alive: %d %d %d\n", atomic_read(&ctx->users), ctx->dead, ctx->reqs_active); + /* + * We don't need to bother with munmap() here - + * exit_mmap(mm) is coming and it'll unmap everything. + * Since aio_free_ring() uses non-zero ->mmap_size + * as indicator that it needs to unmap the area, + * just set it to 0; aio_free_ring() is the only + * place that uses ->mmap_size, so it's safe. + * That way we get all munmap done to current->mm - + * all other callers have ctx->mm == current->mm. + */ + ctx->ring_info.mmap_size = 0; put_ioctx(ctx); } } -- cgit v0.10.2 From 9f3a4afb276e4d8b3be7f3e678d4dbd11470416f Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 20 Apr 2012 21:53:35 -0400 Subject: perfmon: kill some helpers and arguments pfm_vm_munmap() is simply vm_munmap() and pfm_remove_smpl_mapping() always get current as the first argument. Signed-off-by: Al Viro diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index 2777310..899c0fa 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c @@ -604,12 +604,6 @@ pfm_unprotect_ctx_ctxsw(pfm_context_t *x, unsigned long f) spin_unlock(&(x)->ctx_lock); } -static inline unsigned int -pfm_vm_munmap(struct mm_struct *mm, unsigned long addr, size_t len) -{ - return vm_munmap(mm, addr, len); -} - static inline unsigned long pfm_get_unmapped_area(struct file *file, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags, unsigned long exec) { @@ -1458,8 +1452,9 @@ pfm_unreserve_session(pfm_context_t *ctx, int is_syswide, unsigned int cpu) * a PROTECT_CTX() section. */ static int -pfm_remove_smpl_mapping(struct task_struct *task, void *vaddr, unsigned long size) +pfm_remove_smpl_mapping(void *vaddr, unsigned long size) { + struct task_struct *task = current; int r; /* sanity checks */ @@ -1473,7 +1468,7 @@ pfm_remove_smpl_mapping(struct task_struct *task, void *vaddr, unsigned long siz /* * does the actual unmapping */ - r = pfm_vm_munmap(task->mm, (unsigned long)vaddr, size); + r = vm_munmap(current->mm, (unsigned long)vaddr, size); if (r !=0) { printk(KERN_ERR "perfmon: [%d] unable to unmap sampling buffer @%p size=%lu\n", task_pid_nr(task), vaddr, size); @@ -1940,7 +1935,7 @@ pfm_flush(struct file *filp, fl_owner_t id) * because some VM function reenables interrupts. * */ - if (smpl_buf_vaddr) pfm_remove_smpl_mapping(current, smpl_buf_vaddr, smpl_buf_size); + if (smpl_buf_vaddr) pfm_remove_smpl_mapping(smpl_buf_vaddr, smpl_buf_size); return 0; } -- cgit v0.10.2 From bfce281c287a427d0841fadf5d59242757b4e620 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 20 Apr 2012 21:57:04 -0400 Subject: kill mm argument of vm_munmap() it's always current->mm Signed-off-by: Al Viro diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index 899c0fa..f00ba02 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c @@ -1468,7 +1468,7 @@ pfm_remove_smpl_mapping(void *vaddr, unsigned long size) /* * does the actual unmapping */ - r = vm_munmap(current->mm, (unsigned long)vaddr, size); + r = vm_munmap((unsigned long)vaddr, size); if (r !=0) { printk(KERN_ERR "perfmon: [%d] unable to unmap sampling buffer @%p size=%lu\n", task_pid_nr(task), vaddr, size); diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c index 022e57a..3ee51f1 100644 --- a/arch/sparc/kernel/sys_sparc_64.c +++ b/arch/sparc/kernel/sys_sparc_64.c @@ -569,7 +569,7 @@ SYSCALL_DEFINE2(64_munmap, unsigned long, addr, size_t, len) if (invalid_64bit_range(addr, len)) return -EINVAL; - return vm_munmap(current->mm, addr, len); + return vm_munmap(addr, len); } extern unsigned long do_mremap(unsigned long addr, diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 1457be3..91a5e98 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -6364,7 +6364,7 @@ void kvm_arch_commit_memory_region(struct kvm *kvm, if (!user_alloc && !old.user_alloc && old.rmap && !npages) { int ret; - ret = vm_munmap(current->mm, old.userspace_addr, + ret = vm_munmap(old.userspace_addr, old.npages * PAGE_SIZE); if (ret < 0) printk(KERN_WARNING diff --git a/drivers/gpu/drm/i810/i810_dma.c b/drivers/gpu/drm/i810/i810_dma.c index a4ba453..f920fb5 100644 --- a/drivers/gpu/drm/i810/i810_dma.c +++ b/drivers/gpu/drm/i810/i810_dma.c @@ -158,8 +158,7 @@ static int i810_unmap_buffer(struct drm_buf *buf) if (buf_priv->currently_mapped != I810_BUF_MAPPED) return -EINVAL; - retcode = vm_munmap(current->mm, - (unsigned long)buf_priv->virtual, + retcode = vm_munmap((unsigned long)buf_priv->virtual, (size_t) buf->total); buf_priv->currently_mapped = I810_BUF_UNMAPPED; diff --git a/fs/aio.c b/fs/aio.c index 976e33d..67a6db3 100644 --- a/fs/aio.c +++ b/fs/aio.c @@ -94,7 +94,7 @@ static void aio_free_ring(struct kioctx *ctx) if (info->mmap_size) { BUG_ON(ctx->mm != current->mm); - vm_munmap(ctx->mm, info->mmap_base, info->mmap_size); + vm_munmap(info->mmap_base, info->mmap_size); } if (info->ring_pages && info->ring_pages != info->internal_pages) diff --git a/include/linux/mm.h b/include/linux/mm.h index 86a692c..74aa71b 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1403,7 +1403,7 @@ extern int do_munmap(struct mm_struct *, unsigned long, size_t); /* These take the mm semaphore themselves */ extern unsigned long vm_brk(unsigned long, unsigned long); -extern int vm_munmap(struct mm_struct *, unsigned long, size_t); +extern int vm_munmap(unsigned long, size_t); extern unsigned long vm_mmap(struct file *, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long); diff --git a/mm/mmap.c b/mm/mmap.c index b38b47e..848ef52 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -2134,9 +2134,10 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len) } EXPORT_SYMBOL(do_munmap); -int vm_munmap(struct mm_struct *mm, unsigned long start, size_t len) +int vm_munmap(unsigned long start, size_t len) { int ret; + struct mm_struct *mm = current->mm; down_write(&mm->mmap_sem); ret = do_munmap(mm, start, len); @@ -2148,7 +2149,7 @@ EXPORT_SYMBOL(vm_munmap); SYSCALL_DEFINE2(munmap, unsigned long, addr, size_t, len) { profile_munmap(addr); - return vm_munmap(current->mm, addr, len); + return vm_munmap(addr, len); } static inline void verify_mm_writelocked(struct mm_struct *mm) diff --git a/mm/nommu.c b/mm/nommu.c index dd00383..bb8f4f0 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -1734,8 +1734,9 @@ erase_whole_vma: } EXPORT_SYMBOL(do_munmap); -int vm_munmap(struct mm_struct *mm, unsigned long addr, size_t len) +int vm_munmap(unsigned long addr, size_t len) { + struct mm_struct *mm = current->mm; int ret; down_write(&mm->mmap_sem); @@ -1747,7 +1748,7 @@ EXPORT_SYMBOL(vm_munmap); SYSCALL_DEFINE2(munmap, unsigned long, addr, size_t, len) { - return vm_munmap(current->mm, addr, len); + return vm_munmap(addr, len); } /* -- cgit v0.10.2 From c77365c963cf8703ecf1004cd3b298068a3e1b76 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sat, 21 Apr 2012 12:31:05 -0400 Subject: NFSv4: Ensure that we don't drop a state owner more than once Retest the RB_EMPTY_NODE() condition under the spin lock to ensure that we don't call rb_erase() more than once on the same state owner. Signed-off-by: Trond Myklebust diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 3b07f09..b300fb8 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -435,13 +435,17 @@ nfs4_alloc_state_owner(struct nfs_server *server, static void nfs4_drop_state_owner(struct nfs4_state_owner *sp) { - if (!RB_EMPTY_NODE(&sp->so_server_node)) { + struct rb_node *rb_node = &sp->so_server_node; + + if (!RB_EMPTY_NODE(rb_node)) { struct nfs_server *server = sp->so_server; struct nfs_client *clp = server->nfs_client; spin_lock(&clp->cl_lock); - rb_erase(&sp->so_server_node, &server->state_owners); - RB_CLEAR_NODE(&sp->so_server_node); + if (!RB_EMPTY_NODE(rb_node)) { + rb_erase(rb_node, &server->state_owners); + RB_CLEAR_NODE(rb_node); + } spin_unlock(&clp->cl_lock); } } -- cgit v0.10.2 From 7bf97bc27308cfdc7a8dadd40ae50f7c4cb09b01 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sat, 21 Apr 2012 12:36:19 -0400 Subject: NFSv4: Keep dropped state owners on the LRU list for a while To ensure that we don't reuse their identifiers. Signed-off-by: Trond Myklebust diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index b300fb8..7f0fcfc 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -521,6 +521,14 @@ out: /** * nfs4_put_state_owner - Release a nfs4_state_owner * @sp: state owner data to release + * + * Note that we keep released state owners on an LRU + * list. + * This caches valid state owners so that they can be + * reused, to avoid the OPEN_CONFIRM on minor version 0. + * It also pins the uniquifier of dropped state owners for + * a while, to ensure that those state owner names are + * never reused. */ void nfs4_put_state_owner(struct nfs4_state_owner *sp) { @@ -530,15 +538,9 @@ void nfs4_put_state_owner(struct nfs4_state_owner *sp) if (!atomic_dec_and_lock(&sp->so_count, &clp->cl_lock)) return; - if (!RB_EMPTY_NODE(&sp->so_server_node)) { - sp->so_expires = jiffies; - list_add_tail(&sp->so_lru, &server->state_owners_lru); - spin_unlock(&clp->cl_lock); - } else { - nfs4_remove_state_owner_locked(sp); - spin_unlock(&clp->cl_lock); - nfs4_free_state_owner(sp); - } + sp->so_expires = jiffies; + list_add_tail(&sp->so_lru, &server->state_owners_lru); + spin_unlock(&clp->cl_lock); } /** -- cgit v0.10.2 From c5a99937a9cf74a623384023201a7d98b51e7e3b Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Wed, 18 Apr 2012 17:25:58 +0000 Subject: ks8851: Fix mutex deadlock in ks8851_net_stop() There is a potential deadlock scenario when the ks8851 driver is removed. The interrupt handler schedules a workqueue which acquires a mutex that ks8851_net_stop() also acquires before flushing the workqueue. Previously lockdep wouldn't be able to find this problem but now that it has the support we can trigger this lockdep warning by rmmoding the driver after an ifconfig up. Fix the possible deadlock by disabling the interrupts in the chip and then release the lock across the workqueue flushing. The mutex is only there to proect the registers anyway so this should be ok. ======================================================= [ INFO: possible circular locking dependency detected ] 3.0.21-00021-g8b33780-dirty #2911 ------------------------------------------------------- rmmod/125 is trying to acquire lock: ((&ks->irq_work)){+.+...}, at: [] flush_work+0x0/0xac but task is already holding lock: (&ks->lock){+.+...}, at: [] ks8851_net_stop+0x64/0x138 [ks8851] which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&ks->lock){+.+...}: [] __lock_acquire+0x940/0x9f8 [] lock_acquire+0x10c/0x130 [] mutex_lock_nested+0x68/0x3dc [] ks8851_irq_work+0x24/0x46c [ks8851] [] process_one_work+0x2d8/0x518 [] worker_thread+0x220/0x3a0 [] kthread+0x88/0x94 [] kernel_thread_exit+0x0/0x8 -> #0 ((&ks->irq_work)){+.+...}: [] validate_chain+0x914/0x1018 [] __lock_acquire+0x940/0x9f8 [] lock_acquire+0x10c/0x130 [] flush_work+0x4c/0xac [] ks8851_net_stop+0x6c/0x138 [ks8851] [] __dev_close_many+0x98/0xcc [] dev_close_many+0x68/0xd0 [] rollback_registered_many+0xcc/0x2b8 [] rollback_registered+0x28/0x34 [] unregister_netdevice_queue+0x58/0x7c [] unregister_netdev+0x18/0x20 [] ks8851_remove+0x64/0xb4 [ks8851] [] spi_drv_remove+0x18/0x1c [] __device_release_driver+0x7c/0xbc [] driver_detach+0x8c/0xb4 [] bus_remove_driver+0xb8/0xe8 [] sys_delete_module+0x1e8/0x27c [] ret_fast_syscall+0x0/0x3c other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ks->lock); lock((&ks->irq_work)); lock(&ks->lock); lock((&ks->irq_work)); *** DEADLOCK *** 4 locks held by rmmod/125: #0: (&__lockdep_no_validate__){+.+.+.}, at: [] driver_detach+0x6c/0xb4 #1: (&__lockdep_no_validate__){+.+.+.}, at: [] driver_detach+0x78/0xb4 #2: (rtnl_mutex){+.+.+.}, at: [] unregister_netdev+0xc/0x20 #3: (&ks->lock){+.+...}, at: [] ks8851_net_stop+0x64/0x138 [ks8851] Cc: Ben Dooks Signed-off-by: Stephen Boyd Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/micrel/ks8851.c b/drivers/net/ethernet/micrel/ks8851.c index e5dc075..ad10759 100644 --- a/drivers/net/ethernet/micrel/ks8851.c +++ b/drivers/net/ethernet/micrel/ks8851.c @@ -889,16 +889,17 @@ static int ks8851_net_stop(struct net_device *dev) netif_stop_queue(dev); mutex_lock(&ks->lock); + /* turn off the IRQs and ack any outstanding */ + ks8851_wrreg16(ks, KS_IER, 0x0000); + ks8851_wrreg16(ks, KS_ISR, 0xffff); + mutex_unlock(&ks->lock); /* stop any outstanding work */ flush_work(&ks->irq_work); flush_work(&ks->tx_work); flush_work(&ks->rxctrl_work); - /* turn off the IRQs and ack any outstanding */ - ks8851_wrreg16(ks, KS_IER, 0x0000); - ks8851_wrreg16(ks, KS_ISR, 0xffff); - + mutex_lock(&ks->lock); /* shutdown RX process */ ks8851_wrreg16(ks, KS_RXCR1, 0x0000); @@ -907,6 +908,7 @@ static int ks8851_net_stop(struct net_device *dev) /* set powermode to soft power down to save power */ ks8851_set_powermode(ks, PMECR_PM_SOFTDOWN); + mutex_unlock(&ks->lock); /* ensure any queued tx buffers are dumped */ while (!skb_queue_empty(&ks->txq)) { @@ -918,7 +920,6 @@ static int ks8851_net_stop(struct net_device *dev) dev_kfree_skb(txb); } - mutex_unlock(&ks->lock); return 0; } -- cgit v0.10.2 From 792df87228965c58c307877af00498641584bd47 Mon Sep 17 00:00:00 2001 From: Wenqi Ma Date: Thu, 19 Apr 2012 00:39:37 +0000 Subject: net/hyperv: Adding cancellation to ensure rndis filter is closed Although the network interface is down, the RX packets number which could be observed by ifconfig may keep on increasing. This is because the WORK scheduled in netvsc_set_multicast_list() may be executed after netvsc_close(). That means the rndis filter may be re-enabled by do_set_multicast() even if it was closed by netvsc_close(). By canceling possible WORK before close the rndis filter, the issue could be never happened. Signed-off-by: Wenqi Ma Reviewed-by: Wei Yongjun Signed-off-by: David S. Miller diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index dd29478..2d59138 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -44,6 +44,7 @@ struct net_device_context { /* point back to our device context */ struct hv_device *device_ctx; struct delayed_work dwork; + struct work_struct work; }; @@ -51,30 +52,22 @@ static int ring_size = 128; module_param(ring_size, int, S_IRUGO); MODULE_PARM_DESC(ring_size, "Ring buffer size (# of pages)"); -struct set_multicast_work { - struct work_struct work; - struct net_device *net; -}; - static void do_set_multicast(struct work_struct *w) { - struct set_multicast_work *swk = - container_of(w, struct set_multicast_work, work); - struct net_device *net = swk->net; - - struct net_device_context *ndevctx = netdev_priv(net); + struct net_device_context *ndevctx = + container_of(w, struct net_device_context, work); struct netvsc_device *nvdev; struct rndis_device *rdev; nvdev = hv_get_drvdata(ndevctx->device_ctx); - if (nvdev == NULL) - goto out; + if (nvdev == NULL || nvdev->ndev == NULL) + return; rdev = nvdev->extension; if (rdev == NULL) - goto out; + return; - if (net->flags & IFF_PROMISC) + if (nvdev->ndev->flags & IFF_PROMISC) rndis_filter_set_packet_filter(rdev, NDIS_PACKET_TYPE_PROMISCUOUS); else @@ -82,21 +75,13 @@ static void do_set_multicast(struct work_struct *w) NDIS_PACKET_TYPE_BROADCAST | NDIS_PACKET_TYPE_ALL_MULTICAST | NDIS_PACKET_TYPE_DIRECTED); - -out: - kfree(w); } static void netvsc_set_multicast_list(struct net_device *net) { - struct set_multicast_work *swk = - kmalloc(sizeof(struct set_multicast_work), GFP_ATOMIC); - if (swk == NULL) - return; + struct net_device_context *net_device_ctx = netdev_priv(net); - swk->net = net; - INIT_WORK(&swk->work, do_set_multicast); - schedule_work(&swk->work); + schedule_work(&net_device_ctx->work); } static int netvsc_open(struct net_device *net) @@ -125,6 +110,8 @@ static int netvsc_close(struct net_device *net) netif_tx_disable(net); + /* Make sure netvsc_set_multicast_list doesn't re-enable filter! */ + cancel_work_sync(&net_device_ctx->work); ret = rndis_filter_close(device_obj); if (ret != 0) netdev_err(net, "unable to close device (ret %d).\n", ret); @@ -335,6 +322,7 @@ static int netvsc_change_mtu(struct net_device *ndev, int mtu) nvdev->start_remove = true; cancel_delayed_work_sync(&ndevctx->dwork); + cancel_work_sync(&ndevctx->work); netif_tx_disable(ndev); rndis_filter_device_remove(hdev); @@ -403,6 +391,7 @@ static int netvsc_probe(struct hv_device *dev, net_device_ctx->device_ctx = dev; hv_set_drvdata(dev, net); INIT_DELAYED_WORK(&net_device_ctx->dwork, netvsc_send_garp); + INIT_WORK(&net_device_ctx->work, do_set_multicast); net->netdev_ops = &device_ops; @@ -456,6 +445,7 @@ static int netvsc_remove(struct hv_device *dev) ndev_ctx = netdev_priv(net); cancel_delayed_work_sync(&ndev_ctx->dwork); + cancel_work_sync(&ndev_ctx->work); /* Stop outbound asap */ netif_tx_disable(net); -- cgit v0.10.2 From e8195b24feb208f6e944e7542779f4397776794d Mon Sep 17 00:00:00 2001 From: Matt Renzelmann Date: Thu, 19 Apr 2012 07:17:17 +0000 Subject: ks8851: Fix request_irq/free_irq mismatch The dev_id parameter passed to free_irq needs to match the one passed to the corresponding request_irq. Signed-off-by: Matt Renzelmann Acked-by: Stephen Boyd Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/micrel/ks8851.c b/drivers/net/ethernet/micrel/ks8851.c index ad10759..f8dda00 100644 --- a/drivers/net/ethernet/micrel/ks8851.c +++ b/drivers/net/ethernet/micrel/ks8851.c @@ -1525,7 +1525,7 @@ static int __devinit ks8851_probe(struct spi_device *spi) err_netdev: - free_irq(ndev->irq, ndev); + free_irq(ndev->irq, ks); err_id: err_irq: -- cgit v0.10.2 From bbe362be5368b9f531b95a4a9b502ae2832e1dac Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 19 Apr 2012 07:16:21 +0000 Subject: drop_monitor: allow more events per second It seems there is a logic error in trace_drop_common(), since we store only 64 drops, even if they are from same location. This fix is a one liner, but we probably need more work to avoid useless atomic dec/inc Now I can watch 1 Mpps drops through dropwatch... Signed-off-by: Eric Dumazet Cc: Neil Horman Acked-by: Neil Horman Signed-off-by: David S. Miller diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c index 7f36b38..5c3c81a 100644 --- a/net/core/drop_monitor.c +++ b/net/core/drop_monitor.c @@ -150,6 +150,7 @@ static void trace_drop_common(struct sk_buff *skb, void *location) for (i = 0; i < msg->entries; i++) { if (!memcmp(&location, msg->points[i].pc, sizeof(void *))) { msg->points[i].count++; + atomic_inc(&data->dm_hit_count); goto out; } } -- cgit v0.10.2 From e9a5ea1852cd8d7e155d2e3a45e4a6ea25110f7d Mon Sep 17 00:00:00 2001 From: Yong Zhang Date: Thu, 19 Apr 2012 20:28:32 +0000 Subject: sparc32,leon: add notify_cpu_starting() Otherwise cpu_active_mask will not set, which lead to other issue. Signed-off-by: Yong Zhang Signed-off-by: Konrad Eisele Reviewed-by: Srivatsa S. Bhat Signed-off-by: David S. Miller diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c index 1210fde..160cac9 100644 --- a/arch/sparc/kernel/leon_smp.c +++ b/arch/sparc/kernel/leon_smp.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include @@ -78,6 +79,8 @@ void __cpuinit leon_callin(void) local_flush_tlb_all(); leon_configure_cache_smp(); + notify_cpu_starting(cpuid); + /* Get our local ticker going. */ smp_setup_percpu_timer(); -- cgit v0.10.2 From 163faf31778e536ac6125bc8b14f4667adc910e9 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Thu, 19 Apr 2012 10:36:33 +0000 Subject: drivers/net: Do not free an IRQ if its request failed Refrain from attempting to free an interrupt line if the request fails and hence, there is no IRQ to free. CC: netdev@vger.kernel.org Signed-off-by: Lee Jones Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c index 5aa2dbe..cd3defb 100644 --- a/drivers/net/ethernet/smsc/smsc911x.c +++ b/drivers/net/ethernet/smsc/smsc911x.c @@ -2378,7 +2378,6 @@ static int __devinit smsc911x_drv_probe(struct platform_device *pdev) SET_NETDEV_DEV(dev, &pdev->dev); pdata = netdev_priv(dev); - dev->irq = irq_res->start; irq_flags = irq_res->flags & IRQF_TRIGGER_MASK; pdata->ioaddr = ioremap_nocache(res->start, res_size); @@ -2442,7 +2441,7 @@ static int __devinit smsc911x_drv_probe(struct platform_device *pdev) if (retval) { SMSC_WARN(pdata, probe, "Unable to claim requested irq: %d", dev->irq); - goto out_free_irq; + goto out_disable_resources; } retval = register_netdev(dev); -- cgit v0.10.2 From 66f75a5d028beaf67c931435fdc3e7823125730c Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 21 Apr 2012 14:47:52 -0700 Subject: Linux 3.4-rc4 diff --git a/Makefile b/Makefile index f6578f4..afc868e 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 4 SUBLEVEL = 0 -EXTRAVERSION = -rc3 +EXTRAVERSION = -rc4 NAME = Saber-toothed Squirrel # *DOCUMENTATION* -- cgit v0.10.2 From e95c8438ea1c56c254f0607c8fb6bca7f463c744 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Fri, 20 Apr 2012 21:03:36 +0200 Subject: drm/i915: fixup load-detect on enabled, but not active pipe Somehow we have a fast-path that tries to avoid going through the load-detect code when the encode already has a crtc associated. But this fails horribly when the crtc is off. The load detect pipe itself manages this case well (and also does not forget to restore the dpms state), so just rip out this special case. The issue seems to go back all the way to the commit that originally introduced load-detection on the vga output: commit e4a5d54f924ea5ce2913d9d0687d034004816465 Author: Ma Ling Date: Tue May 26 11:31:00 2009 +0800 drm/i915: Add support for VGA load detection (pre-945). Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43020 Reported-by: Jean Delvare Reviewed-by: Chris Wilson Signed-Off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c index 4d3d736..90b9793 100644 --- a/drivers/gpu/drm/i915/intel_crt.c +++ b/drivers/gpu/drm/i915/intel_crt.c @@ -430,8 +430,8 @@ intel_crt_detect(struct drm_connector *connector, bool force) { struct drm_device *dev = connector->dev; struct intel_crt *crt = intel_attached_crt(connector); - struct drm_crtc *crtc; enum drm_connector_status status; + struct intel_load_detect_pipe tmp; if (I915_HAS_HOTPLUG(dev)) { if (intel_crt_detect_hotplug(connector)) { @@ -450,23 +450,16 @@ intel_crt_detect(struct drm_connector *connector, bool force) return connector->status; /* for pre-945g platforms use load detect */ - crtc = crt->base.base.crtc; - if (crtc && crtc->enabled) { - status = intel_crt_load_detect(crt); - } else { - struct intel_load_detect_pipe tmp; - - if (intel_get_load_detect_pipe(&crt->base, connector, NULL, - &tmp)) { - if (intel_crt_detect_ddc(connector)) - status = connector_status_connected; - else - status = intel_crt_load_detect(crt); - intel_release_load_detect_pipe(&crt->base, connector, - &tmp); - } else - status = connector_status_unknown; - } + if (intel_get_load_detect_pipe(&crt->base, connector, NULL, + &tmp)) { + if (intel_crt_detect_ddc(connector)) + status = connector_status_connected; + else + status = intel_crt_load_detect(crt); + intel_release_load_detect_pipe(&crt->base, connector, + &tmp); + } else + status = connector_status_unknown; return status; } -- cgit v0.10.2 From 6f381fa344911d5a234b13574433cf23036f9467 Mon Sep 17 00:00:00 2001 From: Lin Ming Date: Thu, 12 Apr 2012 13:50:38 +0800 Subject: [SCSI] scsi_lib: use correct DMA device in __scsi_alloc_queue MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Currently, __scsi_alloc_queue uses SCSI host's parent device as DMA device to set segment boundary. But the parent device may not refer to the DMA device. For example, for ATA disk, SCSI host's parent device now refers to ATA port. Since commit d139b9b([SCSI] scsi_lib_dma: fix bug with dma maps on nested scsi objects), a new field Scsi_Host->dma_dev was introduced to refer to the real DMA device. Use ->dma_dev in __scsi_alloc_queue to correctly set segment boundary. Bug report: http://marc.info/?l=linux-ide&m=133177818318187&w=2 Reported-and-tested-by: Jörg Sommer Signed-off-by: Lin Ming Signed-off-by: James Bottomley diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index ead6405..5dfd749 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1638,7 +1638,7 @@ struct request_queue *__scsi_alloc_queue(struct Scsi_Host *shost, request_fn_proc *request_fn) { struct request_queue *q; - struct device *dev = shost->shost_gendev.parent; + struct device *dev = shost->dma_dev; q = blk_init_queue(request_fn, NULL); if (!q) -- cgit v0.10.2 From f8fc75dc576eac0c996e4a792a4701819d999260 Mon Sep 17 00:00:00 2001 From: Lin Ming Date: Thu, 12 Apr 2012 13:50:39 +0800 Subject: [SCSI] libata: Pass correct DMA device to scsi host MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Use scsi_add_host_with_dma in ata_scsi_add_hosts to pass in the correct DMA device(ATA host). Bug report: http://marc.info/?l=linux-ide&m=133177818318187&w=2 Reported-and-tested-by: Jörg Sommer Acked-by: Jeff Garzik Signed-off-by: Lin Ming Signed-off-by: James Bottomley diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 93dabdc..7832b1a 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -3399,7 +3399,8 @@ int ata_scsi_add_hosts(struct ata_host *host, struct scsi_host_template *sht) */ shost->max_host_blocked = 1; - rc = scsi_add_host(ap->scsi_host, &ap->tdev); + rc = scsi_add_host_with_dma(ap->scsi_host, + &ap->tdev, ap->host->dev); if (rc) goto err_add; } -- cgit v0.10.2 From 6c557cfee08751d22aed34840f389b846f0f4508 Mon Sep 17 00:00:00 2001 From: Roland Stigge Date: Wed, 4 Apr 2012 10:34:37 +0200 Subject: i2c: pnx: Disable clk in suspend In the driver's suspend function, clk_enable() was used instead of clk_disable(). This is corrected with this patch. Signed-off-by: Roland Stigge Reviewed-by: Arnd Bergmann CC: stable@vger.kernel.org [wsa: reworded commit header slightly] Signed-off-by: Wolfram Sang diff --git a/drivers/i2c/busses/i2c-pnx.c b/drivers/i2c/busses/i2c-pnx.c index 04be9f8..eb8ad53 100644 --- a/drivers/i2c/busses/i2c-pnx.c +++ b/drivers/i2c/busses/i2c-pnx.c @@ -546,8 +546,7 @@ static int i2c_pnx_controller_suspend(struct platform_device *pdev, { struct i2c_pnx_algo_data *alg_data = platform_get_drvdata(pdev); - /* FIXME: shouldn't this be clk_disable? */ - clk_enable(alg_data->clk); + clk_disable(alg_data->clk); return 0; } -- cgit v0.10.2 From f70893d08338b9cab8008d2e30404ce58930a513 Mon Sep 17 00:00:00 2001 From: Alok Chauhan Date: Mon, 2 Apr 2012 11:23:02 +0530 Subject: i2c: tegra: Add delay before resetting the controller after NACK NACK interrupt is generated before I2C controller generates the STOP condition on bus. Because of this reset of controller is happening before I2C controller could complete STOP condition. So wait for some time before resetting the controller so that STOP condition has delivered properly on bus. Added delay of 2 clock period before resetting the controller in case of NACK error. Signed-off-by: Alok Chauhan Acked-by: Stephen Warren [wsa: Reworded the commit msg and code comment a bit] Signed-off-by: Wolfram Sang diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index e978635..55e5ea6 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -516,6 +516,14 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev, if (likely(i2c_dev->msg_err == I2C_ERR_NONE)) return 0; + /* + * NACK interrupt is generated before the I2C controller generates the + * STOP condition on the bus. So wait for 2 clock periods before resetting + * the controller so that STOP condition has been delivered properly. + */ + if (i2c_dev->msg_err == I2C_ERR_NO_ACK) + udelay(DIV_ROUND_UP(2 * 1000000, i2c_dev->bus_clk_rate)); + tegra_i2c_init(i2c_dev); if (i2c_dev->msg_err == I2C_ERR_NO_ACK) { if (msg->flags & I2C_M_IGNORE_NAK) -- cgit v0.10.2 From 8a52f9f347da721b199b7f9dcc0168bbe7d0baae Mon Sep 17 00:00:00 2001 From: Tomoya MORINAGA Date: Mon, 26 Mar 2012 14:55:25 +0900 Subject: i2c-eg20t: change timeout value 50msec to 1000msec Currently, during i2c works alone, wait-event timeout is not occurred. However, as CPU load increases, timeout occurs frequently. So, I modified like this patch. Modifying like this patch, I've never seen the timeout event with high load test. Signed-off-by: Tomoya MORINAGA Signed-off-by: Wolfram Sang diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c index f086131..4a46c8b 100644 --- a/drivers/i2c/busses/i2c-eg20t.c +++ b/drivers/i2c/busses/i2c-eg20t.c @@ -324,7 +324,7 @@ static s32 pch_i2c_wait_for_xfer_complete(struct i2c_algo_pch_data *adap) { long ret; ret = wait_event_timeout(pch_event, - (adap->pch_event_flag != 0), msecs_to_jiffies(50)); + (adap->pch_event_flag != 0), msecs_to_jiffies(1000)); if (ret == 0) { pch_err(adap, "timeout: %x\n", adap->pch_event_flag); -- cgit v0.10.2 From 096407136769ec10690abe1baba092abcb763662 Mon Sep 17 00:00:00 2001 From: Tomoya MORINAGA Date: Mon, 26 Mar 2012 14:55:23 +0900 Subject: i2c-eg20t: Modify MODULE_AUTHOR's email address Signed-off-by: Tomoya MORINAGA Signed-off-by: Wolfram Sang diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c index 4a46c8b..c811289 100644 --- a/drivers/i2c/busses/i2c-eg20t.c +++ b/drivers/i2c/busses/i2c-eg20t.c @@ -1063,6 +1063,6 @@ module_exit(pch_pci_exit); MODULE_DESCRIPTION("Intel EG20T PCH/LAPIS Semico ML7213/ML7223/ML7831 IOH I2C"); MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Tomoya MORINAGA. "); +MODULE_AUTHOR("Tomoya MORINAGA. "); module_param(pch_i2c_speed, int, (S_IRUSR | S_IWUSR)); module_param(pch_clk, int, (S_IRUSR | S_IWUSR)); -- cgit v0.10.2 From d135c522f1234f62e81be29cebdf59e9955139ad Mon Sep 17 00:00:00 2001 From: Neal Cardwell Date: Sun, 22 Apr 2012 09:45:47 +0000 Subject: tcp: fix TCP_MAXSEG for established IPv6 passive sockets Commit f5fff5d forgot to fix TCP_MAXSEG behavior IPv6 sockets, so IPv6 TCP server sockets that used TCP_MAXSEG would find that the advmss of child sockets would be incorrect. This commit mirrors the advmss logic from tcp_v4_syn_recv_sock in tcp_v6_syn_recv_sock. Eventually this logic should probably be shared between IPv4 and IPv6, but this at least fixes this issue. Signed-off-by: Neal Cardwell Acked-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 86cfe60..98256cf 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -1383,6 +1383,10 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb, tcp_mtup_init(newsk); tcp_sync_mss(newsk, dst_mtu(dst)); newtp->advmss = dst_metric_advmss(dst); + if (tcp_sk(sk)->rx_opt.user_mss && + tcp_sk(sk)->rx_opt.user_mss < newtp->advmss) + newtp->advmss = tcp_sk(sk)->rx_opt.user_mss; + tcp_initialize_rcv_mss(newsk); if (tcp_rsk(req)->snt_synack) tcp_valid_rtt_meas(newsk, -- cgit v0.10.2 From 2ef822c55371b20548d4f58193c580407a5d738d Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Mon, 16 Apr 2012 19:55:39 +0000 Subject: powerpc/eeh: Fix crash caused by null eeh_dev The problem was reported by Anton Blanchard. While EEH error happened to the PCI device without the corresponding device driver, kernel crash was seen. Eventually, I successfully reproduced the problem on Firebird-L machine with utility "errinjct". Initially, the device driver for Emulex ethernet MAC has been disabled from .config and force data parity on the Emulex ethernet MAC with help of "errinjct". Eventually, I saw the kernel crash after issueing couple of "lspci -v" command. The root cause behind is that the PCI device, including the reference to the corresponding eeh device, will be removed from the system while EEH does recovery. Afterwards, the PCI device will be probed again and added into the system accordingly. So it's not safe to retrieve the eeh device from the corresponding PCI device after the PCI device has been removed and not added again. The patch fixes the issue and retrieve the eeh device from OF node instead of PCI device after the PCI device has been removed. Signed-off-by: Gavin Shan Tested-by: Anton Blanchard Signed-off-by: Benjamin Herrenschmidt diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c index 309d38e..a75e37d 100644 --- a/arch/powerpc/platforms/pseries/eeh.c +++ b/arch/powerpc/platforms/pseries/eeh.c @@ -1076,7 +1076,7 @@ static void eeh_add_device_late(struct pci_dev *dev) pr_debug("EEH: Adding device %s\n", pci_name(dev)); dn = pci_device_to_OF_node(dev); - edev = pci_dev_to_eeh_dev(dev); + edev = of_node_to_eeh_dev(dn); if (edev->pdev == dev) { pr_debug("EEH: Already referenced !\n"); return; -- cgit v0.10.2 From 3027691e58bfb21f6ea2e9f1d225d11b4e2b20e2 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Wed, 18 Apr 2012 22:16:48 +0000 Subject: powerpc/pmac: Don't add_timer() twice If the interrupt and the timeout happen roughly at the same time, we can get into a situation where the timer function is run while the interrupt has already been processed. In this case, the timer function might end up doing an add_timer on an already pending timer, causing a BUG_ON() to trigger. Instead, just skip the whole timeout operation if we see that the timer is pending. The spinlock ensures that the only way that happens is if we already started a new operation and thus the timeout can be ignored. Signed-off-by: Benjamin Herrenschmidt diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c index 996c5ff..03685a3 100644 --- a/arch/powerpc/platforms/powermac/low_i2c.c +++ b/arch/powerpc/platforms/powermac/low_i2c.c @@ -366,11 +366,20 @@ static void kw_i2c_timeout(unsigned long data) unsigned long flags; spin_lock_irqsave(&host->lock, flags); + + /* + * If the timer is pending, that means we raced with the + * irq, in which case we just return + */ + if (timer_pending(&host->timeout_timer)) + goto skip; + kw_i2c_handle_interrupt(host, kw_read_reg(reg_isr)); if (host->state != state_idle) { host->timeout_timer.expires = jiffies + KW_POLL_TIMEOUT; add_timer(&host->timeout_timer); } + skip: spin_unlock_irqrestore(&host->lock, flags); } -- cgit v0.10.2 From 3a2b4f7c355ff1c97e4adebadf0a1aefd7c4518a Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 19 Apr 2012 17:29:34 +0000 Subject: powerpc/mpic: Fix confusion between hw_irq and virq mpic_is_ipi() takes a virq and immediately converts it to a hw_irq. However, one of the two call sites calls it with a ... hw_irq. The other call site also happens to have the hw_irq at hand, so let's change it to just take that as an argument. Also change mpic_is_tm() for consistency. Signed-off-by: Benjamin Herrenschmidt diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index 9ac71eb..665b0f8 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b/arch/powerpc/sysdev/mpic.c @@ -604,18 +604,14 @@ static struct mpic *mpic_find(unsigned int irq) } /* Determine if the linux irq is an IPI */ -static unsigned int mpic_is_ipi(struct mpic *mpic, unsigned int irq) +static unsigned int mpic_is_ipi(struct mpic *mpic, unsigned int src) { - unsigned int src = virq_to_hw(irq); - return (src >= mpic->ipi_vecs[0] && src <= mpic->ipi_vecs[3]); } /* Determine if the linux irq is a timer */ -static unsigned int mpic_is_tm(struct mpic *mpic, unsigned int irq) +static unsigned int mpic_is_tm(struct mpic *mpic, unsigned int src) { - unsigned int src = virq_to_hw(irq); - return (src >= mpic->timer_vecs[0] && src <= mpic->timer_vecs[7]); } @@ -1555,12 +1551,12 @@ void mpic_irq_set_priority(unsigned int irq, unsigned int pri) return; raw_spin_lock_irqsave(&mpic_lock, flags); - if (mpic_is_ipi(mpic, irq)) { + if (mpic_is_ipi(mpic, src)) { reg = mpic_ipi_read(src - mpic->ipi_vecs[0]) & ~MPIC_VECPRI_PRIORITY_MASK; mpic_ipi_write(src - mpic->ipi_vecs[0], reg | (pri << MPIC_VECPRI_PRIORITY_SHIFT)); - } else if (mpic_is_tm(mpic, irq)) { + } else if (mpic_is_tm(mpic, src)) { reg = mpic_tm_read(src - mpic->timer_vecs[0]) & ~MPIC_VECPRI_PRIORITY_MASK; mpic_tm_write(src - mpic->timer_vecs[0], -- cgit v0.10.2 From 3fca40c704dd013797f2c0c518f37cd2cc8e19fe Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 19 Apr 2012 17:29:42 +0000 Subject: irq: Add IRQ_TYPE_DEFAULT for use by PIC drivers This is meant typically to allow a PIC driver's irq domain map() callback to establish sane defaults for the interrupt (and make sure that the HW and the irq_desc are in sync as far as the trigger is concerned). The irq core may not call the set_trigger callback if it thinks the trigger is already set to the right setting, so we need to ensure new descriptors are properly synchronized with the hardware. Signed-off-by: Benjamin Herrenschmidt diff --git a/include/linux/irq.h b/include/linux/irq.h index 7810406..b27cfcf 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -49,6 +49,12 @@ typedef void (*irq_preflow_handler_t)(struct irq_data *data); * IRQ_TYPE_LEVEL_LOW - low level triggered * IRQ_TYPE_LEVEL_MASK - Mask to filter out the level bits * IRQ_TYPE_SENSE_MASK - Mask for all the above bits + * IRQ_TYPE_DEFAULT - For use by some PICs to ask irq_set_type + * to setup the HW to a sane default (used + * by irqdomain map() callbacks to synchronize + * the HW state and SW flags for a newly + * allocated descriptor). + * * IRQ_TYPE_PROBE - Special flag for probing in progress * * Bits which can be modified via irq_set/clear/modify_status_flags() @@ -77,6 +83,7 @@ enum { IRQ_TYPE_LEVEL_LOW = 0x00000008, IRQ_TYPE_LEVEL_MASK = (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH), IRQ_TYPE_SENSE_MASK = 0x0000000f, + IRQ_TYPE_DEFAULT = IRQ_TYPE_SENSE_MASK, IRQ_TYPE_PROBE = 0x00000010, -- cgit v0.10.2 From 446f6d06fab0b49c61887ecbe8286d6aaa796637 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 19 Apr 2012 17:30:57 +0000 Subject: powerpc/mpic: Properly set default triggers This gets rid of the unused default senses array, and replaces the incorrect use of IRQ_TYPE_NONE with the new IRQ_TYPE_DEFAULT for the initial set_trigger() call when mapping an interrupt. This in turn makes us read the HW state and update the irq desc accordingly. Signed-off-by: Benjamin Herrenschmidt diff --git a/arch/powerpc/include/asm/mpic.h b/arch/powerpc/include/asm/mpic.h index c65b929..c9f698a 100644 --- a/arch/powerpc/include/asm/mpic.h +++ b/arch/powerpc/include/asm/mpic.h @@ -275,9 +275,6 @@ struct mpic unsigned int isu_mask; /* Number of sources */ unsigned int num_sources; - /* default senses array */ - unsigned char *senses; - unsigned int senses_count; /* vector numbers used for internal sources (ipi/timers) */ unsigned int ipi_vecs[4]; @@ -415,21 +412,6 @@ extern struct mpic *mpic_alloc(struct device_node *node, extern void mpic_assign_isu(struct mpic *mpic, unsigned int isu_num, phys_addr_t phys_addr); -/* Set default sense codes - * - * @mpic: controller - * @senses: array of sense codes - * @count: size of above array - * - * Optionally provide an array (indexed on hardware interrupt numbers - * for this MPIC) of default sense codes for the chip. Those are linux - * sense codes IRQ_TYPE_* - * - * The driver gets ownership of the pointer, don't dispose of it or - * anything like that. __init only. - */ -extern void mpic_set_default_senses(struct mpic *mpic, u8 *senses, int count); - /* Initialize the controller. After this has been called, none of the above * should be called again for this mpic diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index 665b0f8..395af13 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b/arch/powerpc/sysdev/mpic.c @@ -872,21 +872,45 @@ int mpic_set_irq_type(struct irq_data *d, unsigned int flow_type) if (src >= mpic->num_sources) return -EINVAL; + vold = mpic_irq_read(src, MPIC_INFO(IRQ_VECTOR_PRI)); + + /* We don't support "none" type */ if (flow_type == IRQ_TYPE_NONE) - if (mpic->senses && src < mpic->senses_count) - flow_type = mpic->senses[src]; - if (flow_type == IRQ_TYPE_NONE) - flow_type = IRQ_TYPE_LEVEL_LOW; + flow_type = IRQ_TYPE_DEFAULT; + + /* Default: read HW settings */ + if (flow_type == IRQ_TYPE_DEFAULT) { + switch(vold & (MPIC_INFO(VECPRI_POLARITY_MASK) | + MPIC_INFO(VECPRI_SENSE_MASK))) { + case MPIC_INFO(VECPRI_SENSE_EDGE) | + MPIC_INFO(VECPRI_POLARITY_POSITIVE): + flow_type = IRQ_TYPE_EDGE_RISING; + break; + case MPIC_INFO(VECPRI_SENSE_EDGE) | + MPIC_INFO(VECPRI_POLARITY_NEGATIVE): + flow_type = IRQ_TYPE_EDGE_FALLING; + break; + case MPIC_INFO(VECPRI_SENSE_LEVEL) | + MPIC_INFO(VECPRI_POLARITY_POSITIVE): + flow_type = IRQ_TYPE_LEVEL_HIGH; + break; + case MPIC_INFO(VECPRI_SENSE_LEVEL) | + MPIC_INFO(VECPRI_POLARITY_NEGATIVE): + flow_type = IRQ_TYPE_LEVEL_LOW; + break; + } + } + /* Apply to irq desc */ irqd_set_trigger_type(d, flow_type); + /* Apply to HW */ if (mpic_is_ht_interrupt(mpic, src)) vecpri = MPIC_VECPRI_POLARITY_POSITIVE | MPIC_VECPRI_SENSE_EDGE; else vecpri = mpic_type_to_vecpri(mpic, flow_type); - vold = mpic_irq_read(src, MPIC_INFO(IRQ_VECTOR_PRI)); vnew = vold & ~(MPIC_INFO(VECPRI_POLARITY_MASK) | MPIC_INFO(VECPRI_SENSE_MASK)); vnew |= vecpri; @@ -1022,7 +1046,7 @@ static int mpic_host_map(struct irq_domain *h, unsigned int virq, irq_set_chip_and_handler(virq, chip, handle_fasteoi_irq); /* Set default irq type */ - irq_set_irq_type(virq, IRQ_TYPE_NONE); + irq_set_irq_type(virq, IRQ_TYPE_DEFAULT); /* If the MPIC was reset, then all vectors have already been * initialized. Otherwise, a per source lazy initialization @@ -1413,12 +1437,6 @@ void __init mpic_assign_isu(struct mpic *mpic, unsigned int isu_num, mpic->num_sources = isu_first + mpic->isu_size; } -void __init mpic_set_default_senses(struct mpic *mpic, u8 *senses, int count) -{ - mpic->senses = senses; - mpic->senses_count = count; -} - void __init mpic_init(struct mpic *mpic) { int i, cpu; -- cgit v0.10.2 From eae1415dda93fd4edcce0637aa64b3c9b567563f Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Fri, 20 Apr 2012 11:39:17 -0400 Subject: hwmon: (ad7314) Fix build warning The following build warning is seen in some configurations. drivers/hwmon/ad7314.c: In function 'ad7314_show_temperature': drivers/hwmon/ad7314.c:70: warning: 'data' may be used uninitialized in this function Fix by overloading the return value from ad7314_spi_read with both data and error code (the returned data is really u16 and needs to be converted into a signed value anyway). Signed-off-by: Guenter Roeck Cc: Jonathan Cameron Acked-by: Jean Delvare diff --git a/drivers/hwmon/ad7314.c b/drivers/hwmon/ad7314.c index ce43642..f85ce70 100644 --- a/drivers/hwmon/ad7314.c +++ b/drivers/hwmon/ad7314.c @@ -47,7 +47,7 @@ struct ad7314_data { u16 rx ____cacheline_aligned; }; -static int ad7314_spi_read(struct ad7314_data *chip, s16 *data) +static int ad7314_spi_read(struct ad7314_data *chip) { int ret; @@ -57,9 +57,7 @@ static int ad7314_spi_read(struct ad7314_data *chip, s16 *data) return ret; } - *data = be16_to_cpu(chip->rx); - - return ret; + return be16_to_cpu(chip->rx); } static ssize_t ad7314_show_temperature(struct device *dev, @@ -70,12 +68,12 @@ static ssize_t ad7314_show_temperature(struct device *dev, s16 data; int ret; - ret = ad7314_spi_read(chip, &data); + ret = ad7314_spi_read(chip); if (ret < 0) return ret; switch (spi_get_device_id(chip->spi_dev)->driver_data) { case ad7314: - data = (data & AD7314_TEMP_MASK) >> AD7314_TEMP_OFFSET; + data = (ret & AD7314_TEMP_MASK) >> AD7314_TEMP_OFFSET; data = (data << 6) >> 6; return sprintf(buf, "%d\n", 250 * data); @@ -86,7 +84,7 @@ static ssize_t ad7314_show_temperature(struct device *dev, * with a sign bit - which is a 14 bit 2's complement * register. 1lsb - 31.25 milli degrees centigrade */ - data &= ADT7301_TEMP_MASK; + data = ret & ADT7301_TEMP_MASK; data = (data << 2) >> 2; return sprintf(buf, "%d\n", -- cgit v0.10.2 From 22b9153faa2263aa89625de25e71c7d44c8dbd16 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 9 Mar 2012 11:00:06 -0800 Subject: [SCSI] libsas: introduce sas_work to fix sas_drain_work vs sas_queue_work When requeuing work to a draining workqueue the last work instance may not be idle, so sas_queue_work() must not touch work->entry. Introduce sas_work with a drain_node list_head to have a private list for collecting work deferred due to drain collision. Fixes reports like: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [] process_one_work+0x2e/0x338 Signed-off-by: Dan Williams Signed-off-by: James Bottomley diff --git a/drivers/scsi/libsas/sas_discover.c b/drivers/scsi/libsas/sas_discover.c index 3646796..c7ac882 100644 --- a/drivers/scsi/libsas/sas_discover.c +++ b/drivers/scsi/libsas/sas_discover.c @@ -205,8 +205,7 @@ void sas_notify_lldd_dev_gone(struct domain_device *dev) static void sas_probe_devices(struct work_struct *work) { struct domain_device *dev, *n; - struct sas_discovery_event *ev = - container_of(work, struct sas_discovery_event, work); + struct sas_discovery_event *ev = to_sas_discovery_event(work); struct asd_sas_port *port = ev->port; clear_bit(DISCE_PROBE, &port->disc.pending); @@ -291,8 +290,7 @@ static void sas_unregister_common_dev(struct asd_sas_port *port, struct domain_d static void sas_destruct_devices(struct work_struct *work) { struct domain_device *dev, *n; - struct sas_discovery_event *ev = - container_of(work, struct sas_discovery_event, work); + struct sas_discovery_event *ev = to_sas_discovery_event(work); struct asd_sas_port *port = ev->port; clear_bit(DISCE_DESTRUCT, &port->disc.pending); @@ -377,8 +375,7 @@ static void sas_discover_domain(struct work_struct *work) { struct domain_device *dev; int error = 0; - struct sas_discovery_event *ev = - container_of(work, struct sas_discovery_event, work); + struct sas_discovery_event *ev = to_sas_discovery_event(work); struct asd_sas_port *port = ev->port; clear_bit(DISCE_DISCOVER_DOMAIN, &port->disc.pending); @@ -437,8 +434,7 @@ static void sas_discover_domain(struct work_struct *work) static void sas_revalidate_domain(struct work_struct *work) { int res = 0; - struct sas_discovery_event *ev = - container_of(work, struct sas_discovery_event, work); + struct sas_discovery_event *ev = to_sas_discovery_event(work); struct asd_sas_port *port = ev->port; struct sas_ha_struct *ha = port->ha; @@ -466,21 +462,25 @@ static void sas_revalidate_domain(struct work_struct *work) /* ---------- Events ---------- */ -static void sas_chain_work(struct sas_ha_struct *ha, struct work_struct *work) +static void sas_chain_work(struct sas_ha_struct *ha, struct sas_work *sw) { - /* chained work is not subject to SA_HA_DRAINING or SAS_HA_REGISTERED */ - scsi_queue_work(ha->core.shost, work); + /* chained work is not subject to SA_HA_DRAINING or + * SAS_HA_REGISTERED, because it is either submitted in the + * workqueue, or known to be submitted from a context that is + * not racing against draining + */ + scsi_queue_work(ha->core.shost, &sw->work); } static void sas_chain_event(int event, unsigned long *pending, - struct work_struct *work, + struct sas_work *sw, struct sas_ha_struct *ha) { if (!test_and_set_bit(event, pending)) { unsigned long flags; spin_lock_irqsave(&ha->state_lock, flags); - sas_chain_work(ha, work); + sas_chain_work(ha, sw); spin_unlock_irqrestore(&ha->state_lock, flags); } } @@ -519,7 +519,7 @@ void sas_init_disc(struct sas_discovery *disc, struct asd_sas_port *port) disc->pending = 0; for (i = 0; i < DISC_NUM_EVENTS; i++) { - INIT_WORK(&disc->disc_work[i].work, sas_event_fns[i]); + INIT_SAS_WORK(&disc->disc_work[i].work, sas_event_fns[i]); disc->disc_work[i].port = port; } } diff --git a/drivers/scsi/libsas/sas_event.c b/drivers/scsi/libsas/sas_event.c index 16639bb..4e4292d 100644 --- a/drivers/scsi/libsas/sas_event.c +++ b/drivers/scsi/libsas/sas_event.c @@ -27,19 +27,21 @@ #include "sas_internal.h" #include "sas_dump.h" -void sas_queue_work(struct sas_ha_struct *ha, struct work_struct *work) +void sas_queue_work(struct sas_ha_struct *ha, struct sas_work *sw) { if (!test_bit(SAS_HA_REGISTERED, &ha->state)) return; - if (test_bit(SAS_HA_DRAINING, &ha->state)) - list_add(&work->entry, &ha->defer_q); - else - scsi_queue_work(ha->core.shost, work); + if (test_bit(SAS_HA_DRAINING, &ha->state)) { + /* add it to the defer list, if not already pending */ + if (list_empty(&sw->drain_node)) + list_add(&sw->drain_node, &ha->defer_q); + } else + scsi_queue_work(ha->core.shost, &sw->work); } static void sas_queue_event(int event, unsigned long *pending, - struct work_struct *work, + struct sas_work *work, struct sas_ha_struct *ha) { if (!test_and_set_bit(event, pending)) { @@ -55,7 +57,7 @@ static void sas_queue_event(int event, unsigned long *pending, void __sas_drain_work(struct sas_ha_struct *ha) { struct workqueue_struct *wq = ha->core.shost->work_q; - struct work_struct *w, *_w; + struct sas_work *sw, *_sw; set_bit(SAS_HA_DRAINING, &ha->state); /* flush submitters */ @@ -66,9 +68,9 @@ void __sas_drain_work(struct sas_ha_struct *ha) spin_lock_irq(&ha->state_lock); clear_bit(SAS_HA_DRAINING, &ha->state); - list_for_each_entry_safe(w, _w, &ha->defer_q, entry) { - list_del_init(&w->entry); - sas_queue_work(ha, w); + list_for_each_entry_safe(sw, _sw, &ha->defer_q, drain_node) { + list_del_init(&sw->drain_node); + sas_queue_work(ha, sw); } spin_unlock_irq(&ha->state_lock); } @@ -151,7 +153,7 @@ int sas_init_events(struct sas_ha_struct *sas_ha) int i; for (i = 0; i < HA_NUM_EVENTS; i++) { - INIT_WORK(&sas_ha->ha_events[i].work, sas_ha_event_fns[i]); + INIT_SAS_WORK(&sas_ha->ha_events[i].work, sas_ha_event_fns[i]); sas_ha->ha_events[i].ha = sas_ha; } diff --git a/drivers/scsi/libsas/sas_init.c b/drivers/scsi/libsas/sas_init.c index 120bff6..10cb5ae 100644 --- a/drivers/scsi/libsas/sas_init.c +++ b/drivers/scsi/libsas/sas_init.c @@ -94,8 +94,7 @@ void sas_hash_addr(u8 *hashed, const u8 *sas_addr) void sas_hae_reset(struct work_struct *work) { - struct sas_ha_event *ev = - container_of(work, struct sas_ha_event, work); + struct sas_ha_event *ev = to_sas_ha_event(work); struct sas_ha_struct *ha = ev->ha; clear_bit(HAE_RESET, &ha->pending); @@ -369,14 +368,14 @@ static void sas_phy_release(struct sas_phy *phy) static void phy_reset_work(struct work_struct *work) { - struct sas_phy_data *d = container_of(work, typeof(*d), reset_work); + struct sas_phy_data *d = container_of(work, typeof(*d), reset_work.work); d->reset_result = transport_sas_phy_reset(d->phy, d->hard_reset); } static void phy_enable_work(struct work_struct *work) { - struct sas_phy_data *d = container_of(work, typeof(*d), enable_work); + struct sas_phy_data *d = container_of(work, typeof(*d), enable_work.work); d->enable_result = sas_phy_enable(d->phy, d->enable); } @@ -389,8 +388,8 @@ static int sas_phy_setup(struct sas_phy *phy) return -ENOMEM; mutex_init(&d->event_lock); - INIT_WORK(&d->reset_work, phy_reset_work); - INIT_WORK(&d->enable_work, phy_enable_work); + INIT_SAS_WORK(&d->reset_work, phy_reset_work); + INIT_SAS_WORK(&d->enable_work, phy_enable_work); d->phy = phy; phy->hostdata = d; diff --git a/drivers/scsi/libsas/sas_internal.h b/drivers/scsi/libsas/sas_internal.h index f05c638..507e4cf 100644 --- a/drivers/scsi/libsas/sas_internal.h +++ b/drivers/scsi/libsas/sas_internal.h @@ -45,10 +45,10 @@ struct sas_phy_data { struct mutex event_lock; int hard_reset; int reset_result; - struct work_struct reset_work; + struct sas_work reset_work; int enable; int enable_result; - struct work_struct enable_work; + struct sas_work enable_work; }; void sas_scsi_recover_host(struct Scsi_Host *shost); @@ -80,7 +80,7 @@ void sas_porte_broadcast_rcvd(struct work_struct *work); void sas_porte_link_reset_err(struct work_struct *work); void sas_porte_timer_event(struct work_struct *work); void sas_porte_hard_reset(struct work_struct *work); -void sas_queue_work(struct sas_ha_struct *ha, struct work_struct *work); +void sas_queue_work(struct sas_ha_struct *ha, struct sas_work *sw); int sas_notify_lldd_dev_found(struct domain_device *); void sas_notify_lldd_dev_gone(struct domain_device *); diff --git a/drivers/scsi/libsas/sas_phy.c b/drivers/scsi/libsas/sas_phy.c index dcfd4a9..521422e 100644 --- a/drivers/scsi/libsas/sas_phy.c +++ b/drivers/scsi/libsas/sas_phy.c @@ -32,8 +32,7 @@ static void sas_phye_loss_of_signal(struct work_struct *work) { - struct asd_sas_event *ev = - container_of(work, struct asd_sas_event, work); + struct asd_sas_event *ev = to_asd_sas_event(work); struct asd_sas_phy *phy = ev->phy; clear_bit(PHYE_LOSS_OF_SIGNAL, &phy->phy_events_pending); @@ -43,8 +42,7 @@ static void sas_phye_loss_of_signal(struct work_struct *work) static void sas_phye_oob_done(struct work_struct *work) { - struct asd_sas_event *ev = - container_of(work, struct asd_sas_event, work); + struct asd_sas_event *ev = to_asd_sas_event(work); struct asd_sas_phy *phy = ev->phy; clear_bit(PHYE_OOB_DONE, &phy->phy_events_pending); @@ -53,8 +51,7 @@ static void sas_phye_oob_done(struct work_struct *work) static void sas_phye_oob_error(struct work_struct *work) { - struct asd_sas_event *ev = - container_of(work, struct asd_sas_event, work); + struct asd_sas_event *ev = to_asd_sas_event(work); struct asd_sas_phy *phy = ev->phy; struct sas_ha_struct *sas_ha = phy->ha; struct asd_sas_port *port = phy->port; @@ -85,8 +82,7 @@ static void sas_phye_oob_error(struct work_struct *work) static void sas_phye_spinup_hold(struct work_struct *work) { - struct asd_sas_event *ev = - container_of(work, struct asd_sas_event, work); + struct asd_sas_event *ev = to_asd_sas_event(work); struct asd_sas_phy *phy = ev->phy; struct sas_ha_struct *sas_ha = phy->ha; struct sas_internal *i = @@ -127,14 +123,12 @@ int sas_register_phys(struct sas_ha_struct *sas_ha) phy->error = 0; INIT_LIST_HEAD(&phy->port_phy_el); for (k = 0; k < PORT_NUM_EVENTS; k++) { - INIT_WORK(&phy->port_events[k].work, - sas_port_event_fns[k]); + INIT_SAS_WORK(&phy->port_events[k].work, sas_port_event_fns[k]); phy->port_events[k].phy = phy; } for (k = 0; k < PHY_NUM_EVENTS; k++) { - INIT_WORK(&phy->phy_events[k].work, - sas_phy_event_fns[k]); + INIT_SAS_WORK(&phy->phy_events[k].work, sas_phy_event_fns[k]); phy->phy_events[k].phy = phy; } @@ -144,8 +138,7 @@ int sas_register_phys(struct sas_ha_struct *sas_ha) spin_lock_init(&phy->sas_prim_lock); phy->frame_rcvd_size = 0; - phy->phy = sas_phy_alloc(&sas_ha->core.shost->shost_gendev, - i); + phy->phy = sas_phy_alloc(&sas_ha->core.shost->shost_gendev, i); if (!phy->phy) return -ENOMEM; diff --git a/drivers/scsi/libsas/sas_port.c b/drivers/scsi/libsas/sas_port.c index eb19c01..1cf7d75 100644 --- a/drivers/scsi/libsas/sas_port.c +++ b/drivers/scsi/libsas/sas_port.c @@ -208,8 +208,7 @@ void sas_deform_port(struct asd_sas_phy *phy, int gone) void sas_porte_bytes_dmaed(struct work_struct *work) { - struct asd_sas_event *ev = - container_of(work, struct asd_sas_event, work); + struct asd_sas_event *ev = to_asd_sas_event(work); struct asd_sas_phy *phy = ev->phy; clear_bit(PORTE_BYTES_DMAED, &phy->port_events_pending); @@ -219,8 +218,7 @@ void sas_porte_bytes_dmaed(struct work_struct *work) void sas_porte_broadcast_rcvd(struct work_struct *work) { - struct asd_sas_event *ev = - container_of(work, struct asd_sas_event, work); + struct asd_sas_event *ev = to_asd_sas_event(work); struct asd_sas_phy *phy = ev->phy; unsigned long flags; u32 prim; @@ -237,8 +235,7 @@ void sas_porte_broadcast_rcvd(struct work_struct *work) void sas_porte_link_reset_err(struct work_struct *work) { - struct asd_sas_event *ev = - container_of(work, struct asd_sas_event, work); + struct asd_sas_event *ev = to_asd_sas_event(work); struct asd_sas_phy *phy = ev->phy; clear_bit(PORTE_LINK_RESET_ERR, &phy->port_events_pending); @@ -248,8 +245,7 @@ void sas_porte_link_reset_err(struct work_struct *work) void sas_porte_timer_event(struct work_struct *work) { - struct asd_sas_event *ev = - container_of(work, struct asd_sas_event, work); + struct asd_sas_event *ev = to_asd_sas_event(work); struct asd_sas_phy *phy = ev->phy; clear_bit(PORTE_TIMER_EVENT, &phy->port_events_pending); @@ -259,8 +255,7 @@ void sas_porte_timer_event(struct work_struct *work) void sas_porte_hard_reset(struct work_struct *work) { - struct asd_sas_event *ev = - container_of(work, struct asd_sas_event, work); + struct asd_sas_event *ev = to_asd_sas_event(work); struct asd_sas_phy *phy = ev->phy; clear_bit(PORTE_HARD_RESET, &phy->port_events_pending); diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h index 5f5ed1b..f4f1c96 100644 --- a/include/scsi/libsas.h +++ b/include/scsi/libsas.h @@ -217,11 +217,29 @@ struct domain_device { struct kref kref; }; -struct sas_discovery_event { +struct sas_work { + struct list_head drain_node; struct work_struct work; +}; + +static inline void INIT_SAS_WORK(struct sas_work *sw, void (*fn)(struct work_struct *)) +{ + INIT_WORK(&sw->work, fn); + INIT_LIST_HEAD(&sw->drain_node); +} + +struct sas_discovery_event { + struct sas_work work; struct asd_sas_port *port; }; +static inline struct sas_discovery_event *to_sas_discovery_event(struct work_struct *work) +{ + struct sas_discovery_event *ev = container_of(work, typeof(*ev), work.work); + + return ev; +} + struct sas_discovery { struct sas_discovery_event disc_work[DISC_NUM_EVENTS]; unsigned long pending; @@ -244,7 +262,7 @@ struct asd_sas_port { struct list_head destroy_list; enum sas_linkrate linkrate; - struct work_struct work; + struct sas_work work; /* public: */ int id; @@ -270,10 +288,17 @@ struct asd_sas_port { }; struct asd_sas_event { - struct work_struct work; + struct sas_work work; struct asd_sas_phy *phy; }; +static inline struct asd_sas_event *to_asd_sas_event(struct work_struct *work) +{ + struct asd_sas_event *ev = container_of(work, typeof(*ev), work.work); + + return ev; +} + /* The phy pretty much is controlled by the LLDD. * The class only reads those fields. */ @@ -333,10 +358,17 @@ struct scsi_core { }; struct sas_ha_event { - struct work_struct work; + struct sas_work work; struct sas_ha_struct *ha; }; +static inline struct sas_ha_event *to_sas_ha_event(struct work_struct *work) +{ + struct sas_ha_event *ev = container_of(work, typeof(*ev), work.work); + + return ev; +} + enum sas_ha_state { SAS_HA_REGISTERED, SAS_HA_DRAINING, -- cgit v0.10.2 From 1699490db339e2c6b3037ea8e7dcd6b2755b688e Mon Sep 17 00:00:00 2001 From: Thomas Jackson Date: Fri, 17 Feb 2012 18:33:10 -0800 Subject: [SCSI] libsas: fix sas_find_bcast_phy() in the presence of 'vacant' phys If an expander reports 'PHY VACANT' for a phy index prior to the one that generated a BCN libsas fails rediscovery. Since a vacant phy is defined as a valid phy index that will never have an attached device just continue the search. Cc: Signed-off-by: Thomas Jackson Signed-off-by: Dan Williams Signed-off-by: James Bottomley diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c index 05acd9e..833bea0 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -1718,9 +1718,17 @@ static int sas_find_bcast_phy(struct domain_device *dev, int *phy_id, int phy_change_count = 0; res = sas_get_phy_change_count(dev, i, &phy_change_count); - if (res) - goto out; - else if (phy_change_count != ex->ex_phy[i].phy_change_count) { + switch (res) { + case SMP_RESP_PHY_VACANT: + case SMP_RESP_NO_PHY: + continue; + case SMP_RESP_FUNC_ACC: + break; + default: + return res; + } + + if (phy_change_count != ex->ex_phy[i].phy_change_count) { if (update) ex->ex_phy[i].phy_change_count = phy_change_count; @@ -1728,8 +1736,7 @@ static int sas_find_bcast_phy(struct domain_device *dev, int *phy_id, return 0; } } -out: - return res; + return 0; } static int sas_get_ex_change_count(struct domain_device *dev, int *ecc) -- cgit v0.10.2 From ec236e526777ea8825e6e0c3673a40389692eabf Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Mon, 12 Mar 2012 11:38:26 -0700 Subject: [SCSI] libsas: fix sas_get_port_device regression Commit 899fcf4 "[SCSI] libsas: set attached device type and target protocols for local phys" setup 'phy' to be dereferenced after list_for_each_entry(phy, &port->phy_list, port_phy_el) (i.e. phy == &port->phy_list) resulting in reports like: BUG: unable to handle kernel NULL pointer dereference at 00000000000002b0 IP: [] sas_discover_domain+0x29e/0x4fb [libsas] ...fix by deferring sas_phy_set_target() to the end of sas_get_port_device(). Reported-by: Tom Jackson Tested-by: Tom Jackson Signed-off-by: Dan Williams Signed-off-by: James Bottomley diff --git a/drivers/scsi/libsas/sas_discover.c b/drivers/scsi/libsas/sas_discover.c index c7ac882..658f16c 100644 --- a/drivers/scsi/libsas/sas_discover.c +++ b/drivers/scsi/libsas/sas_discover.c @@ -134,10 +134,6 @@ static int sas_get_port_device(struct asd_sas_port *port) return -ENODEV; } - spin_lock_irq(&port->phy_list_lock); - list_for_each_entry(phy, &port->phy_list, port_phy_el) - sas_phy_set_target(phy, dev); - spin_unlock_irq(&port->phy_list_lock); rphy->identify.phy_identifier = phy->phy->identify.phy_identifier; memcpy(dev->sas_addr, port->attached_sas_addr, SAS_ADDR_SIZE); sas_fill_in_rphy(dev, rphy); @@ -164,6 +160,11 @@ static int sas_get_port_device(struct asd_sas_port *port) spin_unlock_irq(&port->dev_list_lock); } + spin_lock_irq(&port->phy_list_lock); + list_for_each_entry(phy, &port->phy_list, port_phy_el) + sas_phy_set_target(phy, dev); + spin_unlock_irq(&port->phy_list_lock); + return 0; } -- cgit v0.10.2 From 9487669fc225092cf315e1291ece28e23e6754f3 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Tue, 20 Mar 2012 10:53:24 -0700 Subject: [SCSI] libsas: unify domain_device sas_rphy lifetimes Since the domain_device can out live the scsi_target we need the rphy to follow suit otherwise we run into issues like: BUG: unable to handle kernel NULL pointer dereference at 0000000000000050 IP: [] sas_ata_printk+0x43/0x6f [libsas] PGD 0 Oops: 0000 [#1] SMP CPU 1 Modules linked in: ses enclosure isci libsas scsi_transport_sas fuse sunrpc cpufreq_ondemand acpi_cpufreq freq_table mperf microcode pcspkr igb joydev iTCO_wdt ioatdma iTCO_vendor_support i2c_i801 i2c_core dca wmi hed ipv6 pata_acpi ata_generic [last unloaded: scsi_wait_scan] Pid: 129, comm: kworker/u:3 Not tainted 3.3.0-rc5-isci+ #1 Intel Corporation SandyBridge Platform/To be filled by O.E.M. RIP: 0010:[] [] sas_ata_printk+0x43/0x6f [libsas] RSP: 0018:ffff88042232dd70 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff8804283165b8 RCX: ffff88042232dda0 RDX: ffff88042232dd78 RSI: ffff8804283165b8 RDI: ffffffffa01188d7 RBP: ffff88042232ddd0 R08: ffff880388454000 R09: ffff8803edfde1f8 R10: ffff8803edfde1f8 R11: ffff8803edfde1f8 R12: ffff880428316750 R13: ffff880388454000 R14: ffff8803f88b31d0 R15: ffff8803f8b21d50 FS: 0000000000000000(0000) GS:ffff88042ee20000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000050 CR3: 0000000001a05000 CR4: 00000000000406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process kworker/u:3 (pid: 129, threadinfo ffff88042232c000, task ffff88042230c920) Stack: 0000000000000000 ffff880400000018 ffff88042232dde0 ffff88042232dda0 ffffffffa01188c4 ffff88042ee93af0 ffff88042232ddb0 ffffffff8100e047 ffff88042232de10 ffff880420e5a2c8 ffff8803f8b21d50 ffff8803edfde1f8 Call Trace: [] ? load_TLS+0xb/0xf [] async_sas_ata_eh+0x66/0x95 [libsas] [] async_run_entry_fn+0x9e/0x131 Reported-by: Tom Jackson Tested-by: Tom Jackson Signed-off-by: Dan Williams Signed-off-by: James Bottomley diff --git a/drivers/scsi/libsas/sas_discover.c b/drivers/scsi/libsas/sas_discover.c index 658f16c..13b5891 100644 --- a/drivers/scsi/libsas/sas_discover.c +++ b/drivers/scsi/libsas/sas_discover.c @@ -151,6 +151,7 @@ static int sas_get_port_device(struct asd_sas_port *port) sas_device_set_phy(dev, port->port); dev->rphy = rphy; + get_device(&dev->rphy->dev); if (dev_is_sata(dev) || dev->dev_type == SAS_END_DEV) list_add_tail(&dev->disco_list_node, &port->disco_list); @@ -255,6 +256,9 @@ void sas_free_device(struct kref *kref) { struct domain_device *dev = container_of(kref, typeof(*dev), kref); + put_device(&dev->rphy->dev); + dev->rphy = NULL; + if (dev->parent) sas_put_device(dev->parent); @@ -301,7 +305,6 @@ static void sas_destruct_devices(struct work_struct *work) sas_remove_children(&dev->rphy->dev); sas_rphy_delete(dev->rphy); - dev->rphy = NULL; sas_unregister_common_dev(port, dev); } } @@ -313,11 +316,11 @@ void sas_unregister_dev(struct asd_sas_port *port, struct domain_device *dev) /* this rphy never saw sas_rphy_add */ list_del_init(&dev->disco_list_node); sas_rphy_free(dev->rphy); - dev->rphy = NULL; sas_unregister_common_dev(port, dev); + return; } - if (dev->rphy && !test_and_set_bit(SAS_DEV_DESTROY, &dev->state)) { + if (!test_and_set_bit(SAS_DEV_DESTROY, &dev->state)) { sas_rphy_unlink(dev->rphy); list_move_tail(&dev->disco_list_node, &port->destroy_list); sas_discover_event(dev->port, DISCE_DESTRUCT); @@ -417,8 +420,6 @@ static void sas_discover_domain(struct work_struct *work) if (error) { sas_rphy_free(dev->rphy); - dev->rphy = NULL; - list_del_init(&dev->disco_list_node); spin_lock_irq(&port->dev_list_lock); list_del_init(&dev->dev_list_node); diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c index 833bea0..37c3c3f 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -783,6 +783,7 @@ static struct domain_device *sas_ex_discover_end_dev( sas_init_dev(child); child->rphy = rphy; + get_device(&rphy->dev); list_add_tail(&child->disco_list_node, &parent->port->disco_list); @@ -806,6 +807,7 @@ static struct domain_device *sas_ex_discover_end_dev( sas_init_dev(child); child->rphy = rphy; + get_device(&rphy->dev); sas_fill_in_rphy(child, rphy); list_add_tail(&child->disco_list_node, &parent->port->disco_list); @@ -830,8 +832,6 @@ static struct domain_device *sas_ex_discover_end_dev( out_list_del: sas_rphy_free(child->rphy); - child->rphy = NULL; - list_del(&child->disco_list_node); spin_lock_irq(&parent->port->dev_list_lock); list_del(&child->dev_list_node); @@ -911,6 +911,7 @@ static struct domain_device *sas_ex_discover_expander( } port = parent->port; child->rphy = rphy; + get_device(&rphy->dev); edev = rphy_to_expander_device(rphy); child->dev_type = phy->attached_dev_type; kref_get(&parent->kref); @@ -934,6 +935,7 @@ static struct domain_device *sas_ex_discover_expander( res = sas_discover_expander(child); if (res) { + sas_rphy_delete(rphy); spin_lock_irq(&parent->port->dev_list_lock); list_del(&child->dev_list_node); spin_unlock_irq(&parent->port->dev_list_lock); -- cgit v0.10.2 From 0f3fce5cc77e1f35758ef0e46a989e76e5046a7b Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Tue, 20 Mar 2012 13:24:29 -0700 Subject: [SCSI] libsas: fix ata_eh clobbering ex_phys via smp_ata_check_ready The check_ready implementation in the expander-attached ata device case polls on sas_ex_phy_discover(). The effect is that the ex_phy fields (critically ->attached_sas_addr) can change. When ata_eh ends and libsas comes along to revalidate the domain sas_unregister_devs_sas_addr() can fail to lookup devices to remove, or fail to re-add an ata device that ata_eh marked as disabled. So change the code to skip the sas_address and change count updates when ata_eh is active. Cc: Jack Wang Tested-by: Maciej Patelczyk Tested-by: Bartek Nowakowski Tested-by: Jacek Danecki Signed-off-by: Dan Williams Signed-off-by: James Bottomley diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c index 37c3c3f..c1f91b1 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -202,6 +202,7 @@ static void sas_set_ex_phy(struct domain_device *dev, int phy_id, void *rsp) u8 sas_addr[SAS_ADDR_SIZE]; struct smp_resp *resp = rsp; struct discover_resp *dr = &resp->disc; + struct sas_ha_struct *ha = dev->port->ha; struct expander_device *ex = &dev->ex_dev; struct ex_phy *phy = &ex->ex_phy[phy_id]; struct sas_rphy *rphy = dev->rphy; @@ -209,6 +210,8 @@ static void sas_set_ex_phy(struct domain_device *dev, int phy_id, void *rsp) char *type; if (new_phy) { + if (WARN_ON_ONCE(test_bit(SAS_HA_ATA_EH_ACTIVE, &ha->state))) + return; phy->phy = sas_phy_alloc(&rphy->dev, phy_id); /* FIXME: error_handling */ @@ -233,6 +236,8 @@ static void sas_set_ex_phy(struct domain_device *dev, int phy_id, void *rsp) memcpy(sas_addr, phy->attached_sas_addr, SAS_ADDR_SIZE); phy->attached_dev_type = to_dev_type(dr); + if (test_bit(SAS_HA_ATA_EH_ACTIVE, &ha->state)) + goto out; phy->phy_id = phy_id; phy->linkrate = dr->linkrate; phy->attached_sata_host = dr->attached_sata_host; @@ -266,6 +271,7 @@ static void sas_set_ex_phy(struct domain_device *dev, int phy_id, void *rsp) return; } + out: switch (phy->attached_dev_type) { case SATA_PENDING: type = "stp pending"; @@ -304,7 +310,15 @@ static void sas_set_ex_phy(struct domain_device *dev, int phy_id, void *rsp) else return; - SAS_DPRINTK("ex %016llx phy%02d:%c:%X attached: %016llx (%s)\n", + /* if the attached device type changed and ata_eh is active, + * make sure we run revalidation when eh completes (see: + * sas_enable_revalidation) + */ + if (test_bit(SAS_HA_ATA_EH_ACTIVE, &ha->state)) + set_bit(DISCE_REVALIDATE_DOMAIN, &dev->port->disc.pending); + + SAS_DPRINTK("%sex %016llx phy%02d:%c:%X attached: %016llx (%s)\n", + test_bit(SAS_HA_ATA_EH_ACTIVE, &ha->state) ? "ata: " : "", SAS_ADDR(dev->sas_addr), phy->phy_id, sas_route_char(dev, phy), phy->linkrate, SAS_ADDR(phy->attached_sas_addr), type); -- cgit v0.10.2 From b2024459252a9d2d312ee562f86f332a1498f412 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Wed, 21 Mar 2012 21:09:07 -0700 Subject: [SCSI] libsas, libata: fix start of life for a sas ata_port This changes the ordering of initialization and probing events from: 1/ allocate rphy in PORTE_BYTES_DMAED, DISCE_REVALIDATE_DOMAIN 2/ allocate ata_port and schedule port probe in DISCE_PROBE ...to: 1/ allocate ata_port in PORTE_BYTES_DMAED, DISCE_REVALIDATE_DOMAIN 2/ allocate rphy in PORTE_BYTES_DMAED, DISCE_REVALIDATE_DOMAIN 3/ schedule port probe in DISCE_PROBE This ordering prevents PHYE_SIGNAL_LOSS_EVENTS from sneaking in to destrory ata devices before they have been fully initialized: BUG: unable to handle kernel paging request at 0000000000003b10 IP: [] sas_ata_end_eh+0x12/0x5e [libsas] ... [] sas_unregister_common_dev+0x78/0xc9 [libsas] [] sas_unregister_dev+0x4f/0xad [libsas] [] sas_unregister_domain_devices+0x7f/0xbf [libsas] [] sas_deform_port+0x61/0x1b8 [libsas] [] sas_phye_loss_of_signal+0x29/0x2b [libsas] ...and kills the awkward "sata domain_device briefly existing in the domain without an ata_port" state. Reported-by: Michal Kosciowski Signed-off-by: Dan Williams Acked-by: Jeff Garzik Signed-off-by: James Bottomley diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 7832b1a..2222635 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -3839,18 +3839,25 @@ void ata_sas_port_stop(struct ata_port *ap) } EXPORT_SYMBOL_GPL(ata_sas_port_stop); -int ata_sas_async_port_init(struct ata_port *ap) +/** + * ata_sas_async_probe - simply schedule probing and return + * @ap: Port to probe + * + * For batch scheduling of probe for sas attached ata devices, assumes + * the port has already been through ata_sas_port_init() + */ +void ata_sas_async_probe(struct ata_port *ap) { - int rc = ap->ops->port_start(ap); - - if (!rc) { - ap->print_id = atomic_inc_return(&ata_print_id); - __ata_port_probe(ap); - } + __ata_port_probe(ap); +} +EXPORT_SYMBOL_GPL(ata_sas_async_probe); - return rc; +int ata_sas_sync_probe(struct ata_port *ap) +{ + return ata_port_probe(ap); } -EXPORT_SYMBOL_GPL(ata_sas_async_port_init); +EXPORT_SYMBOL_GPL(ata_sas_sync_probe); + /** * ata_sas_port_init - Initialize a SATA device @@ -3867,12 +3874,10 @@ int ata_sas_port_init(struct ata_port *ap) { int rc = ap->ops->port_start(ap); - if (!rc) { - ap->print_id = atomic_inc_return(&ata_print_id); - rc = ata_port_probe(ap); - } - - return rc; + if (rc) + return rc; + ap->print_id = atomic_inc_return(&ata_print_id); + return 0; } EXPORT_SYMBOL_GPL(ata_sas_port_init); diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index e002cd4..467dc38 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -4549,8 +4549,12 @@ static int ipr_ata_slave_alloc(struct scsi_device *sdev) ENTER; if (sdev->sdev_target) sata_port = sdev->sdev_target->hostdata; - if (sata_port) + if (sata_port) { rc = ata_sas_port_init(sata_port->ap); + if (rc == 0) + rc = ata_sas_sync_probe(sata_port->ap); + } + if (rc) ipr_slave_destroy(sdev); diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c index bc0cecc..441d88a 100644 --- a/drivers/scsi/libsas/sas_ata.c +++ b/drivers/scsi/libsas/sas_ata.c @@ -546,11 +546,12 @@ static struct ata_port_info sata_port_info = { .port_ops = &sas_sata_ops }; -int sas_ata_init_host_and_port(struct domain_device *found_dev) +int sas_ata_init(struct domain_device *found_dev) { struct sas_ha_struct *ha = found_dev->port->ha; struct Scsi_Host *shost = ha->core.shost; struct ata_port *ap; + int rc; ata_host_init(&found_dev->sata_dev.ata_host, ha->dev, @@ -567,8 +568,11 @@ int sas_ata_init_host_and_port(struct domain_device *found_dev) ap->private_data = found_dev; ap->cbl = ATA_CBL_SATA; ap->scsi_host = shost; - /* publish initialized ata port */ - smp_wmb(); + rc = ata_sas_port_init(ap); + if (rc) { + ata_sas_port_destroy(ap); + return rc; + } found_dev->sata_dev.ap = ap; return 0; @@ -648,18 +652,13 @@ static void sas_get_ata_command_set(struct domain_device *dev) void sas_probe_sata(struct asd_sas_port *port) { struct domain_device *dev, *n; - int err; mutex_lock(&port->ha->disco_mutex); - list_for_each_entry_safe(dev, n, &port->disco_list, disco_list_node) { + list_for_each_entry(dev, &port->disco_list, disco_list_node) { if (!dev_is_sata(dev)) continue; - err = sas_ata_init_host_and_port(dev); - if (err) - sas_fail_probe(dev, __func__, err); - else - ata_sas_async_port_init(dev->sata_dev.ap); + ata_sas_async_probe(dev->sata_dev.ap); } mutex_unlock(&port->ha->disco_mutex); @@ -718,18 +717,6 @@ static void async_sas_ata_eh(void *data, async_cookie_t cookie) sas_put_device(dev); } -static bool sas_ata_dev_eh_valid(struct domain_device *dev) -{ - struct ata_port *ap; - - if (!dev_is_sata(dev)) - return false; - ap = dev->sata_dev.ap; - /* consume fully initialized ata ports */ - smp_rmb(); - return !!ap; -} - void sas_ata_strategy_handler(struct Scsi_Host *shost) { struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost); @@ -753,7 +740,7 @@ void sas_ata_strategy_handler(struct Scsi_Host *shost) spin_lock(&port->dev_list_lock); list_for_each_entry(dev, &port->dev_list, dev_list_node) { - if (!sas_ata_dev_eh_valid(dev)) + if (!dev_is_sata(dev)) continue; async_schedule_domain(async_sas_ata_eh, dev, &async); } diff --git a/drivers/scsi/libsas/sas_discover.c b/drivers/scsi/libsas/sas_discover.c index 13b5891..629a086 100644 --- a/drivers/scsi/libsas/sas_discover.c +++ b/drivers/scsi/libsas/sas_discover.c @@ -72,6 +72,7 @@ static int sas_get_port_device(struct asd_sas_port *port) struct asd_sas_phy *phy; struct sas_rphy *rphy; struct domain_device *dev; + int rc = -ENODEV; dev = sas_alloc_device(); if (!dev) @@ -110,9 +111,16 @@ static int sas_get_port_device(struct asd_sas_port *port) sas_init_dev(dev); + dev->port = port; switch (dev->dev_type) { - case SAS_END_DEV: case SATA_DEV: + rc = sas_ata_init(dev); + if (rc) { + rphy = NULL; + break; + } + /* fall through */ + case SAS_END_DEV: rphy = sas_end_device_alloc(port->port); break; case EDGE_DEV: @@ -131,7 +139,7 @@ static int sas_get_port_device(struct asd_sas_port *port) if (!rphy) { sas_put_device(dev); - return -ENODEV; + return rc; } rphy->identify.phy_identifier = phy->phy->identify.phy_identifier; @@ -139,7 +147,6 @@ static int sas_get_port_device(struct asd_sas_port *port) sas_fill_in_rphy(dev, rphy); sas_hash_addr(dev->hashed_sas_addr, dev->sas_addr); port->port_dev = dev; - dev->port = port; dev->linkrate = port->linkrate; dev->min_linkrate = port->linkrate; dev->max_linkrate = port->linkrate; diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c index c1f91b1..75247a1 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -790,12 +790,14 @@ static struct domain_device *sas_ex_discover_end_dev( if (res) goto out_free; + sas_init_dev(child); + res = sas_ata_init(child); + if (res) + goto out_free; rphy = sas_end_device_alloc(phy->port); - if (unlikely(!rphy)) + if (!rphy) goto out_free; - sas_init_dev(child); - child->rphy = rphy; get_device(&rphy->dev); diff --git a/include/linux/libata.h b/include/linux/libata.h index 42378d6..e926df7 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -996,7 +996,8 @@ extern int ata_sas_scsi_ioctl(struct ata_port *ap, struct scsi_device *dev, extern void ata_sas_port_destroy(struct ata_port *); extern struct ata_port *ata_sas_port_alloc(struct ata_host *, struct ata_port_info *, struct Scsi_Host *); -extern int ata_sas_async_port_init(struct ata_port *); +extern void ata_sas_async_probe(struct ata_port *ap); +extern int ata_sas_sync_probe(struct ata_port *ap); extern int ata_sas_port_init(struct ata_port *); extern int ata_sas_port_start(struct ata_port *ap); extern void ata_sas_port_stop(struct ata_port *ap); diff --git a/include/scsi/sas_ata.h b/include/scsi/sas_ata.h index cdccd2e..77670e8 100644 --- a/include/scsi/sas_ata.h +++ b/include/scsi/sas_ata.h @@ -37,7 +37,7 @@ static inline int dev_is_sata(struct domain_device *dev) } int sas_get_ata_info(struct domain_device *dev, struct ex_phy *phy); -int sas_ata_init_host_and_port(struct domain_device *found_dev); +int sas_ata_init(struct domain_device *dev); void sas_ata_task_abort(struct sas_task *task); void sas_ata_strategy_handler(struct Scsi_Host *shost); void sas_ata_eh(struct Scsi_Host *shost, struct list_head *work_q, @@ -52,7 +52,7 @@ static inline int dev_is_sata(struct domain_device *dev) { return 0; } -static inline int sas_ata_init_host_and_port(struct domain_device *found_dev) +static inline int sas_ata_init(struct domain_device *dev) { return 0; } -- cgit v0.10.2 From 7d1d865181185bdf1316d236b1b4bd02c9020729 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Tue, 20 Mar 2012 10:50:27 -0700 Subject: [SCSI] libsas: fix false positive 'device attached' conditions Normalize phy->attached_sas_addr to return a zero-address in the case when device-type == NO_DEVICE or the linkrate is invalid to handle expanders that put non-zero sas addresses in the discovery response: sas: ex 5001b4da000f903f phy02:U:0 attached: 0100000000000000 (no device) sas: ex 5001b4da000f903f phy01:U:0 attached: 0100000000000000 (no device) sas: ex 5001b4da000f903f phy03:U:0 attached: 0100000000000000 (no device) sas: ex 5001b4da000f903f phy00:U:0 attached: 0100000000000000 (no device) Reported-by: Andrzej Jakowski Signed-off-by: Dan Williams Cc: stable@vger.kernel.org Signed-off-by: James Bottomley diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c index 75247a1..caa0525 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -245,7 +245,14 @@ static void sas_set_ex_phy(struct domain_device *dev, int phy_id, void *rsp) phy->attached_sata_ps = dr->attached_sata_ps; phy->attached_iproto = dr->iproto << 1; phy->attached_tproto = dr->tproto << 1; - memcpy(phy->attached_sas_addr, dr->attached_sas_addr, SAS_ADDR_SIZE); + /* help some expanders that fail to zero sas_address in the 'no + * device' case + */ + if (phy->attached_dev_type == NO_DEVICE || + phy->linkrate < SAS_LINK_RATE_1_5_GBPS) + memset(phy->attached_sas_addr, 0, SAS_ADDR_SIZE); + else + memcpy(phy->attached_sas_addr, dr->attached_sas_addr, SAS_ADDR_SIZE); phy->attached_phy_id = dr->attached_phy_id; phy->phy_change_count = dr->change_count; phy->routing_attr = dr->routing_attr; -- cgit v0.10.2 From b4698d88585e23d815506f7f38c48192d944b2eb Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 19 Apr 2012 23:48:12 -0700 Subject: [SCSI] Revert "[SCSI] libsas: fix sas port naming" This reverts commit a692b0eec5efae382dfa800e8b4b083f172921a7. Tom reports: [ 8.741033] ------------[ cut here ]------------ [ 8.741038] WARNING: at fs/sysfs/dir.c:508 sysfs_add_one+0xc1/0xf0() [ 8.741040] Hardware name: To Be Filled By O.E.M. [ 8.741041] sysfs: cannot create duplicate filename ...and missing 2 out of 4 drives connected to mvsas. Commit a692b0ee made the assumption that all the phy ids an lldd registers to libsas are unique. However, in the "multi-chip" case mvsas does a rather annoying duplication of phy ids in the array passed to libsas. So, for example, chip0 has phy0-3 at ha phy index 0-3 and chip1 has its phy0-3 at ha phy index 4-7. The more natural model would be to create a scsi_host (and sas_ha) per chip (controller), but for now revert the naming fix which unfortunately means dealing with unpredictable end-device names for a bit longer. Cc: Xiangliang Yu Cc: Patrick Thomson Reported-by: Tom Rini Tested-by: Tom Rini Signed-off-by: Dan Williams Signed-off-by: James Bottomley diff --git a/drivers/scsi/libsas/sas_port.c b/drivers/scsi/libsas/sas_port.c index 1cf7d75..e884a8c 100644 --- a/drivers/scsi/libsas/sas_port.c +++ b/drivers/scsi/libsas/sas_port.c @@ -123,7 +123,7 @@ static void sas_form_port(struct asd_sas_phy *phy) spin_unlock_irqrestore(&sas_ha->phy_port_lock, flags); if (!port->port) { - port->port = sas_port_alloc(phy->phy->dev.parent, phy->id); + port->port = sas_port_alloc(phy->phy->dev.parent, port->id); BUG_ON(!port->port); sas_port_add(port->port); } -- cgit v0.10.2 From 5a218ceba7b64f506bf4f004b04bb457c1805a62 Mon Sep 17 00:00:00 2001 From: Carlos Chinea Date: Wed, 4 Apr 2012 14:11:45 +0300 Subject: HSI: hsi: Rework hsi_controller release Use the proper release mechanism for hsi_controller and hsi_ports structures. Free the structures through their associated device release callbacks. Signed-off-by: Carlos Chinea Acked-by: Greg Kroah-Hartman Acked-by: Linus Walleij diff --git a/drivers/hsi/hsi.c b/drivers/hsi/hsi.c index 4e2d79b..c17d12c 100644 --- a/drivers/hsi/hsi.c +++ b/drivers/hsi/hsi.c @@ -140,12 +140,17 @@ static int hsi_remove_port(struct device *dev, void *data __maybe_unused) return 0; } -static void hsi_controller_release(struct device *dev __maybe_unused) +static void hsi_controller_release(struct device *dev) { + struct hsi_controller *hsi = to_hsi_controller(dev); + + kfree(hsi->port); + kfree(hsi); } -static void hsi_port_release(struct device *dev __maybe_unused) +static void hsi_port_release(struct device *dev) { + kfree(to_hsi_port(dev)); } /** @@ -172,18 +177,14 @@ int hsi_register_controller(struct hsi_controller *hsi) hsi->device.type = &hsi_ctrl; hsi->device.bus = &hsi_bus_type; - hsi->device.release = hsi_controller_release; - err = device_register(&hsi->device); + err = device_add(&hsi->device); if (err < 0) return err; for (i = 0; i < hsi->num_ports; i++) { - hsi->port[i].device.parent = &hsi->device; - hsi->port[i].device.bus = &hsi_bus_type; - hsi->port[i].device.release = hsi_port_release; - hsi->port[i].device.type = &hsi_port; - INIT_LIST_HEAD(&hsi->port[i].clients); - spin_lock_init(&hsi->port[i].clock); - err = device_register(&hsi->port[i].device); + hsi->port[i]->device.parent = &hsi->device; + hsi->port[i]->device.bus = &hsi_bus_type; + hsi->port[i]->device.type = &hsi_port; + err = device_add(&hsi->port[i]->device); if (err < 0) goto out; } @@ -192,7 +193,9 @@ int hsi_register_controller(struct hsi_controller *hsi) return 0; out: - hsi_unregister_controller(hsi); + while (i-- > 0) + device_del(&hsi->port[i]->device); + device_del(&hsi->device); return err; } @@ -223,6 +226,29 @@ static inline int hsi_dummy_cl(struct hsi_client *cl __maybe_unused) } /** + * hsi_put_controller - Free an HSI controller + * + * @hsi: Pointer to the HSI controller to freed + * + * HSI controller drivers should only use this function if they need + * to free their allocated hsi_controller structures before a successful + * call to hsi_register_controller. Other use is not allowed. + */ +void hsi_put_controller(struct hsi_controller *hsi) +{ + unsigned int i; + + if (!hsi) + return; + + for (i = 0; i < hsi->num_ports; i++) + if (hsi->port && hsi->port[i]) + put_device(&hsi->port[i]->device); + put_device(&hsi->device); +} +EXPORT_SYMBOL_GPL(hsi_put_controller); + +/** * hsi_alloc_controller - Allocate an HSI controller and its ports * @n_ports: Number of ports on the HSI controller * @flags: Kernel allocation flags @@ -232,55 +258,53 @@ static inline int hsi_dummy_cl(struct hsi_client *cl __maybe_unused) struct hsi_controller *hsi_alloc_controller(unsigned int n_ports, gfp_t flags) { struct hsi_controller *hsi; - struct hsi_port *port; + struct hsi_port **port; unsigned int i; if (!n_ports) return NULL; - port = kzalloc(sizeof(*port)*n_ports, flags); - if (!port) - return NULL; hsi = kzalloc(sizeof(*hsi), flags); if (!hsi) - goto out; - for (i = 0; i < n_ports; i++) { - dev_set_name(&port[i].device, "port%d", i); - port[i].num = i; - port[i].async = hsi_dummy_msg; - port[i].setup = hsi_dummy_cl; - port[i].flush = hsi_dummy_cl; - port[i].start_tx = hsi_dummy_cl; - port[i].stop_tx = hsi_dummy_cl; - port[i].release = hsi_dummy_cl; - mutex_init(&port[i].lock); + return NULL; + port = kzalloc(sizeof(*port)*n_ports, flags); + if (!port) { + kfree(hsi); + return NULL; } hsi->num_ports = n_ports; hsi->port = port; + hsi->device.release = hsi_controller_release; + device_initialize(&hsi->device); + + for (i = 0; i < n_ports; i++) { + port[i] = kzalloc(sizeof(**port), flags); + if (port[i] == NULL) + goto out; + port[i]->num = i; + port[i]->async = hsi_dummy_msg; + port[i]->setup = hsi_dummy_cl; + port[i]->flush = hsi_dummy_cl; + port[i]->start_tx = hsi_dummy_cl; + port[i]->stop_tx = hsi_dummy_cl; + port[i]->release = hsi_dummy_cl; + mutex_init(&port[i]->lock); + INIT_LIST_HEAD(&hsi->port[i]->clients); + spin_lock_init(&hsi->port[i]->clock); + dev_set_name(&port[i]->device, "port%d", i); + hsi->port[i]->device.release = hsi_port_release; + device_initialize(&hsi->port[i]->device); + } return hsi; out: - kfree(port); + hsi_put_controller(hsi); return NULL; } EXPORT_SYMBOL_GPL(hsi_alloc_controller); /** - * hsi_free_controller - Free an HSI controller - * @hsi: Pointer to HSI controller - */ -void hsi_free_controller(struct hsi_controller *hsi) -{ - if (!hsi) - return; - - kfree(hsi->port); - kfree(hsi); -} -EXPORT_SYMBOL_GPL(hsi_free_controller); - -/** * hsi_free_msg - Free an HSI message * @msg: Pointer to the HSI message * diff --git a/include/linux/hsi/hsi.h b/include/linux/hsi/hsi.h index 4b17806..7f3b726 100644 --- a/include/linux/hsi/hsi.h +++ b/include/linux/hsi/hsi.h @@ -270,13 +270,13 @@ struct hsi_controller { struct module *owner; unsigned int id; unsigned int num_ports; - struct hsi_port *port; + struct hsi_port **port; }; #define to_hsi_controller(dev) container_of(dev, struct hsi_controller, device) struct hsi_controller *hsi_alloc_controller(unsigned int n_ports, gfp_t flags); -void hsi_free_controller(struct hsi_controller *hsi); +void hsi_put_controller(struct hsi_controller *hsi); int hsi_register_controller(struct hsi_controller *hsi); void hsi_unregister_controller(struct hsi_controller *hsi); @@ -294,7 +294,7 @@ static inline void *hsi_controller_drvdata(struct hsi_controller *hsi) static inline struct hsi_port *hsi_find_port_num(struct hsi_controller *hsi, unsigned int num) { - return (num < hsi->num_ports) ? &hsi->port[num] : NULL; + return (num < hsi->num_ports) ? hsi->port[num] : NULL; } /* -- cgit v0.10.2 From 90e41f9dc75b47ab94e2191e4c86aa8259699a33 Mon Sep 17 00:00:00 2001 From: Carlos Chinea Date: Wed, 11 Apr 2012 11:01:11 +0300 Subject: HSI: hsi: Fix error path cleanup on client registration HSI client structure should be freed on error path after calling device_registration by dropping a reference to it. Signed-off-by: Carlos Chinea Acked-by: Greg Kroah-Hartman Acked-by: Linus Walleij diff --git a/drivers/hsi/hsi.c b/drivers/hsi/hsi.c index c17d12c..5c76a36 100644 --- a/drivers/hsi/hsi.c +++ b/drivers/hsi/hsi.c @@ -100,7 +100,7 @@ static void hsi_new_client(struct hsi_port *port, struct hsi_board_info *info) cl->device.archdata = *info->archdata; if (device_register(&cl->device) < 0) { pr_err("hsi: failed to register client: %s\n", info->name); - kfree(cl); + put_device(&cl->device); } } -- cgit v0.10.2 From 6f02b9e9b44a3bfc0046da3ff2707dae0b5e2f30 Mon Sep 17 00:00:00 2001 From: Carlos Chinea Date: Tue, 10 Apr 2012 15:11:24 +0300 Subject: HSI: hsi: Remove controllers and ports from the bus HSI controllers and ports do not belong to the HSI bus. Those devices are not supposed to have a driver attached to them. Signed-off-by: Carlos Chinea Acked-by: Greg Kroah-Hartman Acked-by: Linus Walleij diff --git a/drivers/hsi/hsi.c b/drivers/hsi/hsi.c index 5c76a36..cec1f0c 100644 --- a/drivers/hsi/hsi.c +++ b/drivers/hsi/hsi.c @@ -29,18 +29,6 @@ #include #include "hsi_core.h" -static struct device_type hsi_ctrl = { - .name = "hsi_controller", -}; - -static struct device_type hsi_cl = { - .name = "hsi_client", -}; - -static struct device_type hsi_port = { - .name = "hsi_port", -}; - static ssize_t modalias_show(struct device *dev, struct device_attribute *a __maybe_unused, char *buf) { @@ -54,8 +42,7 @@ static struct device_attribute hsi_bus_dev_attrs[] = { static int hsi_bus_uevent(struct device *dev, struct kobj_uevent_env *env) { - if (dev->type == &hsi_cl) - add_uevent_var(env, "MODALIAS=hsi:%s", dev_name(dev)); + add_uevent_var(env, "MODALIAS=hsi:%s", dev_name(dev)); return 0; } @@ -85,7 +72,6 @@ static void hsi_new_client(struct hsi_port *port, struct hsi_board_info *info) cl = kzalloc(sizeof(*cl), GFP_KERNEL); if (!cl) return; - cl->device.type = &hsi_cl; cl->tx_cfg = info->tx_cfg; cl->rx_cfg = info->rx_cfg; cl->device.bus = &hsi_bus_type; @@ -175,15 +161,11 @@ int hsi_register_controller(struct hsi_controller *hsi) unsigned int i; int err; - hsi->device.type = &hsi_ctrl; - hsi->device.bus = &hsi_bus_type; err = device_add(&hsi->device); if (err < 0) return err; for (i = 0; i < hsi->num_ports; i++) { hsi->port[i]->device.parent = &hsi->device; - hsi->port[i]->device.bus = &hsi_bus_type; - hsi->port[i]->device.type = &hsi_port; err = device_add(&hsi->port[i]->device); if (err < 0) goto out; -- cgit v0.10.2 From ec1c56ff813a198d656d4aa42e5de03e45751bf8 Mon Sep 17 00:00:00 2001 From: Carlos Chinea Date: Wed, 11 Apr 2012 10:55:53 +0300 Subject: HSI: hsi: Rework hsi_event interface Remove custom hack and make use of the notifier chain interfaces for delivering events from the ports to their associated clients. Clients that want to receive port events need to register their callbacks using hsi_register_port_event(). The callbacks can be called in interrupt context. Use hsi_unregestier_port_event() to undo the registration. Signed-off-by: Carlos Chinea Acked-by: Greg Kroah-Hartman Acked-by: Linus Walleij diff --git a/drivers/hsi/hsi.c b/drivers/hsi/hsi.c index cec1f0c..2d58f93 100644 --- a/drivers/hsi/hsi.c +++ b/drivers/hsi/hsi.c @@ -21,12 +21,11 @@ */ #include #include -#include #include -#include #include #include #include +#include #include "hsi_core.h" static ssize_t modalias_show(struct device *dev, @@ -67,7 +66,6 @@ static void hsi_client_release(struct device *dev) static void hsi_new_client(struct hsi_port *port, struct hsi_board_info *info) { struct hsi_client *cl; - unsigned long flags; cl = kzalloc(sizeof(*cl), GFP_KERNEL); if (!cl) @@ -79,9 +77,6 @@ static void hsi_new_client(struct hsi_port *port, struct hsi_board_info *info) cl->device.release = hsi_client_release; dev_set_name(&cl->device, info->name); cl->device.platform_data = info->platform_data; - spin_lock_irqsave(&port->clock, flags); - list_add_tail(&cl->link, &port->clients); - spin_unlock_irqrestore(&port->clock, flags); if (info->archdata) cl->device.archdata = *info->archdata; if (device_register(&cl->device) < 0) { @@ -106,13 +101,6 @@ static void hsi_scan_board_info(struct hsi_controller *hsi) static int hsi_remove_client(struct device *dev, void *data __maybe_unused) { - struct hsi_client *cl = to_hsi_client(dev); - struct hsi_port *port = to_hsi_port(dev->parent); - unsigned long flags; - - spin_lock_irqsave(&port->clock, flags); - list_del(&cl->link); - spin_unlock_irqrestore(&port->clock, flags); device_unregister(dev); return 0; @@ -271,8 +259,7 @@ struct hsi_controller *hsi_alloc_controller(unsigned int n_ports, gfp_t flags) port[i]->stop_tx = hsi_dummy_cl; port[i]->release = hsi_dummy_cl; mutex_init(&port[i]->lock); - INIT_LIST_HEAD(&hsi->port[i]->clients); - spin_lock_init(&hsi->port[i]->clock); + ATOMIC_INIT_NOTIFIER_HEAD(&port[i]->n_head); dev_set_name(&port[i]->device, "port%d", i); hsi->port[i]->device.release = hsi_port_release; device_initialize(&hsi->port[i]->device); @@ -420,37 +407,67 @@ void hsi_release_port(struct hsi_client *cl) } EXPORT_SYMBOL_GPL(hsi_release_port); -static int hsi_start_rx(struct hsi_client *cl, void *data __maybe_unused) +static int hsi_event_notifier_call(struct notifier_block *nb, + unsigned long event, void *data __maybe_unused) { - if (cl->hsi_start_rx) - (*cl->hsi_start_rx)(cl); + struct hsi_client *cl = container_of(nb, struct hsi_client, nb); + + (*cl->ehandler)(cl, event); return 0; } -static int hsi_stop_rx(struct hsi_client *cl, void *data __maybe_unused) +/** + * hsi_register_port_event - Register a client to receive port events + * @cl: HSI client that wants to receive port events + * @cb: Event handler callback + * + * Clients should register a callback to be able to receive + * events from the ports. Registration should happen after + * claiming the port. + * The handler can be called in interrupt context. + * + * Returns -errno on error, or 0 on success. + */ +int hsi_register_port_event(struct hsi_client *cl, + void (*handler)(struct hsi_client *, unsigned long)) { - if (cl->hsi_stop_rx) - (*cl->hsi_stop_rx)(cl); + struct hsi_port *port = hsi_get_port(cl); - return 0; + if (!handler || cl->ehandler) + return -EINVAL; + if (!hsi_port_claimed(cl)) + return -EACCES; + cl->ehandler = handler; + cl->nb.notifier_call = hsi_event_notifier_call; + + return atomic_notifier_chain_register(&port->n_head, &cl->nb); } +EXPORT_SYMBOL_GPL(hsi_register_port_event); -static int hsi_port_for_each_client(struct hsi_port *port, void *data, - int (*fn)(struct hsi_client *cl, void *data)) +/** + * hsi_unregister_port_event - Stop receiving port events for a client + * @cl: HSI client that wants to stop receiving port events + * + * Clients should call this function before releasing their associated + * port. + * + * Returns -errno on error, or 0 on success. + */ +int hsi_unregister_port_event(struct hsi_client *cl) { - struct hsi_client *cl; + struct hsi_port *port = hsi_get_port(cl); + int err; - spin_lock(&port->clock); - list_for_each_entry(cl, &port->clients, link) { - spin_unlock(&port->clock); - (*fn)(cl, data); - spin_lock(&port->clock); - } - spin_unlock(&port->clock); + WARN_ON(!hsi_port_claimed(cl)); - return 0; + err = atomic_notifier_chain_unregister(&port->n_head, &cl->nb); + if (!err) + cl->ehandler = NULL; + + return err; } +EXPORT_SYMBOL_GPL(hsi_unregister_port_event); /** * hsi_event -Notifies clients about port events @@ -464,22 +481,12 @@ static int hsi_port_for_each_client(struct hsi_port *port, void *data, * Events: * HSI_EVENT_START_RX - Incoming wake line high * HSI_EVENT_STOP_RX - Incoming wake line down + * + * Returns -errno on error, or 0 on success. */ -void hsi_event(struct hsi_port *port, unsigned int event) +int hsi_event(struct hsi_port *port, unsigned long event) { - int (*fn)(struct hsi_client *cl, void *data); - - switch (event) { - case HSI_EVENT_START_RX: - fn = hsi_start_rx; - break; - case HSI_EVENT_STOP_RX: - fn = hsi_stop_rx; - break; - default: - return; - } - hsi_port_for_each_client(port, NULL, fn); + return atomic_notifier_call_chain(&port->n_head, event, NULL); } EXPORT_SYMBOL_GPL(hsi_event); diff --git a/include/linux/hsi/hsi.h b/include/linux/hsi/hsi.h index 7f3b726..56fae86 100644 --- a/include/linux/hsi/hsi.h +++ b/include/linux/hsi/hsi.h @@ -26,9 +26,9 @@ #include #include #include -#include #include #include +#include /* HSI message ttype */ #define HSI_MSG_READ 0 @@ -121,18 +121,18 @@ static inline int hsi_register_board_info(struct hsi_board_info const *info, * @device: Driver model representation of the device * @tx_cfg: HSI TX configuration * @rx_cfg: HSI RX configuration - * @hsi_start_rx: Called after incoming wake line goes high - * @hsi_stop_rx: Called after incoming wake line goes low + * @e_handler: Callback for handling port events (RX Wake High/Low) + * @pclaimed: Keeps tracks if the clients claimed its associated HSI port + * @nb: Notifier block for port events */ struct hsi_client { struct device device; struct hsi_config tx_cfg; struct hsi_config rx_cfg; - void (*hsi_start_rx)(struct hsi_client *cl); - void (*hsi_stop_rx)(struct hsi_client *cl); /* private: */ + void (*ehandler)(struct hsi_client *, unsigned long); unsigned int pclaimed:1; - struct list_head link; + struct notifier_block nb; }; #define to_hsi_client(dev) container_of(dev, struct hsi_client, device) @@ -147,6 +147,10 @@ static inline void *hsi_client_drvdata(struct hsi_client *cl) return dev_get_drvdata(&cl->device); } +int hsi_register_port_event(struct hsi_client *cl, + void (*handler)(struct hsi_client *, unsigned long)); +int hsi_unregister_port_event(struct hsi_client *cl); + /** * struct hsi_client_driver - Driver associated to an HSI client * @driver: Driver model representation of the driver @@ -214,8 +218,7 @@ void hsi_free_msg(struct hsi_msg *msg); * @start_tx: Callback to inform that a client wants to TX data * @stop_tx: Callback to inform that a client no longer wishes to TX data * @release: Callback to inform that a client no longer uses the port - * @clients: List of hsi_clients using the port. - * @clock: Lock to serialize access to the clients list. + * @n_head: Notifier chain for signaling port events to the clients. */ struct hsi_port { struct device device; @@ -231,14 +234,14 @@ struct hsi_port { int (*start_tx)(struct hsi_client *cl); int (*stop_tx)(struct hsi_client *cl); int (*release)(struct hsi_client *cl); - struct list_head clients; - spinlock_t clock; + /* private */ + struct atomic_notifier_head n_head; }; #define to_hsi_port(dev) container_of(dev, struct hsi_port, device) #define hsi_get_port(cl) to_hsi_port((cl)->device.parent) -void hsi_event(struct hsi_port *port, unsigned int event); +int hsi_event(struct hsi_port *port, unsigned long event); int hsi_claim_port(struct hsi_client *cl, unsigned int share); void hsi_release_port(struct hsi_client *cl); -- cgit v0.10.2 From fdadb6e9a5cf65c7662b2ca817856f187d05ab7d Mon Sep 17 00:00:00 2001 From: Carlos Chinea Date: Fri, 13 Apr 2012 16:03:03 +0300 Subject: HSI: hsi_char: Remove max_data_size from sysfs Remove max_data_size sysfs entry. Otherwise is possible to have a buffer overrun if its value is increased after the device is open. Signed-off-by: Carlos Chinea Acked-by: Greg Kroah-Hartman Acked-by: Linus Walleij diff --git a/drivers/hsi/clients/hsi_char.c b/drivers/hsi/clients/hsi_char.c index 88a050d..3ad91f6 100644 --- a/drivers/hsi/clients/hsi_char.c +++ b/drivers/hsi/clients/hsi_char.c @@ -123,7 +123,7 @@ struct hsc_client_data { static unsigned int hsc_major; /* Maximum buffer size that hsi_char will accept from userspace */ static unsigned int max_data_size = 0x1000; -module_param(max_data_size, uint, S_IRUSR | S_IWUSR); +module_param(max_data_size, uint, 0); MODULE_PARM_DESC(max_data_size, "max read/write data size [4,8..65536] (^2)"); static void hsc_add_tail(struct hsc_channel *channel, struct hsi_msg *msg, -- cgit v0.10.2 From 24b7099af71232b7568acd74770e6eb8f174f5d6 Mon Sep 17 00:00:00 2001 From: Carlos Chinea Date: Fri, 13 Apr 2012 15:55:13 +0300 Subject: HSI: Add HSI ABI documentation Adds sysfs HSI framework documentation Signed-off-by: Carlos Chinea Acked-by: Greg Kroah-Hartman Acked-by: Linus Walleij diff --git a/Documentation/ABI/testing/sysfs-bus-hsi b/Documentation/ABI/testing/sysfs-bus-hsi new file mode 100644 index 0000000..1b1b282 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-hsi @@ -0,0 +1,19 @@ +What: /sys/bus/hsi +Date: April 2012 +KernelVersion: 3.4 +Contact: Carlos Chinea +Description: + High Speed Synchronous Serial Interface (HSI) is a + serial interface mainly used for connecting application + engines (APE) with cellular modem engines (CMT) in cellular + handsets. + The bus will be populated with devices (hsi_clients) representing + the protocols available in the system. Bus drivers implement + those protocols. + +What: /sys/bus/hsi/devices/.../modalias +Date: April 2012 +KernelVersion: 3.4 +Contact: Carlos Chinea +Description: Stores the same MODALIAS value emitted by uevent + Format: hsi: -- cgit v0.10.2 From 887ea3db26ec8a43b650ada273e1159492939c10 Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Mon, 23 Apr 2012 19:36:39 +0900 Subject: drm/exynos: fixed duplicatd memory allocation bug. the gem was already allocated at gem allocation time but is allocated at page fault handler so this patch fixes the problem that gem was allocated one more time. Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c index 26d5197..b1850c3 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c @@ -712,7 +712,6 @@ int exynos_drm_gem_dumb_destroy(struct drm_file *file_priv, int exynos_drm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { struct drm_gem_object *obj = vma->vm_private_data; - struct exynos_drm_gem_obj *exynos_gem_obj = to_exynos_gem_obj(obj); struct drm_device *dev = obj->dev; unsigned long f_vaddr; pgoff_t page_offset; @@ -724,21 +723,10 @@ int exynos_drm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf) mutex_lock(&dev->struct_mutex); - /* - * allocate all pages as desired size if user wants to allocate - * physically non-continuous memory. - */ - if (exynos_gem_obj->flags & EXYNOS_BO_NONCONTIG) { - ret = exynos_drm_gem_get_pages(obj); - if (ret < 0) - goto err; - } - ret = exynos_drm_gem_map_pages(obj, vma, f_vaddr, page_offset); if (ret < 0) DRM_ERROR("failed to map pages.\n"); -err: mutex_unlock(&dev->struct_mutex); return convert_to_vm_err_msg(ret); -- cgit v0.10.2 From f6ead8dea518d0d02c576432eba4fa145e64b02a Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Mon, 23 Apr 2012 19:41:14 +0900 Subject: drm/exynos: fixed exynos_drm_gem_map_pages bug. this patch fixes the problem that the physical memory region to be mapped to user space could be exceeded. if page fault address was placed at between buffer start and end then memory region to be mapped would be exceeded. Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c index b1850c3..f09d292 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c @@ -149,22 +149,12 @@ static int exynos_drm_gem_map_pages(struct drm_gem_object *obj, unsigned long pfn; if (exynos_gem_obj->flags & EXYNOS_BO_NONCONTIG) { - unsigned long usize = buf->size; - if (!buf->pages) return -EINTR; - while (usize > 0) { - pfn = page_to_pfn(buf->pages[page_offset++]); - vm_insert_mixed(vma, f_vaddr, pfn); - f_vaddr += PAGE_SIZE; - usize -= PAGE_SIZE; - } - - return 0; - } - - pfn = (buf->dma_addr >> PAGE_SHIFT) + page_offset; + pfn = page_to_pfn(buf->pages[page_offset++]); + } else + pfn = (buf->dma_addr >> PAGE_SHIFT) + page_offset; return vm_insert_mixed(vma, f_vaddr, pfn); } -- cgit v0.10.2 From 818c4ea7c589c521912430ea54e0c0a0671b2c6d Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Mon, 23 Apr 2012 19:47:18 +0900 Subject: drm/exynos: added missed vm area region mapping type. with this patch, if the memory region is physically non-continuous then VM_MIXEDMAP is set to vm->vm_flags otherwise VM_PFNMAP. we had missed this flag setting. Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c index f09d292..01139c8 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c @@ -514,6 +514,8 @@ static int exynos_drm_gem_mmap_buffer(struct file *filp, if (!buffer->pages) return -EINVAL; + vma->vm_flags |= VM_MIXEDMAP; + do { ret = vm_insert_page(vma, uaddr, buffer->pages[i++]); if (ret) { -- cgit v0.10.2 From 1a38336b8611a04f0a624330c1f815421f4bf5f4 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 12 Apr 2012 19:47:11 +0100 Subject: ASoC: wm8994: Improve sequencing of AIF channel enables This ensures a clean startup of the channels, without this change some use cases could result in issues in a small proportion of cases. Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c index 7c49642..6c1fe3a 100644 --- a/sound/soc/codecs/wm8994.c +++ b/sound/soc/codecs/wm8994.c @@ -1000,61 +1000,170 @@ static void wm8994_update_class_w(struct snd_soc_codec *codec) } } -static int late_enable_ev(struct snd_soc_dapm_widget *w, - struct snd_kcontrol *kcontrol, int event) +static int aif1clk_ev(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) { struct snd_soc_codec *codec = w->codec; - struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec); + struct wm8994 *control = codec->control_data; + int mask = WM8994_AIF1DAC1L_ENA | WM8994_AIF1DAC1R_ENA; + int dac; + int adc; + int val; + + switch (control->type) { + case WM8994: + case WM8958: + mask |= WM8994_AIF1DAC2L_ENA | WM8994_AIF1DAC2R_ENA; + break; + default: + break; + } switch (event) { case SND_SOC_DAPM_PRE_PMU: - if (wm8994->aif1clk_enable) { - snd_soc_update_bits(codec, WM8994_AIF1_CLOCKING_1, - WM8994_AIF1CLK_ENA_MASK, - WM8994_AIF1CLK_ENA); - wm8994->aif1clk_enable = 0; - } - if (wm8994->aif2clk_enable) { - snd_soc_update_bits(codec, WM8994_AIF2_CLOCKING_1, - WM8994_AIF2CLK_ENA_MASK, - WM8994_AIF2CLK_ENA); - wm8994->aif2clk_enable = 0; - } + val = snd_soc_read(codec, WM8994_AIF1_CONTROL_1); + if ((val & WM8994_AIF1ADCL_SRC) && + (val & WM8994_AIF1ADCR_SRC)) + adc = WM8994_AIF1ADC1R_ENA | WM8994_AIF1ADC2R_ENA; + else if (!(val & WM8994_AIF1ADCL_SRC) && + !(val & WM8994_AIF1ADCR_SRC)) + adc = WM8994_AIF1ADC1L_ENA | WM8994_AIF1ADC2L_ENA; + else + adc = WM8994_AIF1ADC1R_ENA | WM8994_AIF1ADC2R_ENA | + WM8994_AIF1ADC1L_ENA | WM8994_AIF1ADC2L_ENA; + + val = snd_soc_read(codec, WM8994_AIF1_CONTROL_2); + if ((val & WM8994_AIF1DACL_SRC) && + (val & WM8994_AIF1DACR_SRC)) + dac = WM8994_AIF1DAC1R_ENA | WM8994_AIF1DAC2R_ENA; + else if (!(val & WM8994_AIF1DACL_SRC) && + !(val & WM8994_AIF1DACR_SRC)) + dac = WM8994_AIF1DAC1L_ENA | WM8994_AIF1DAC2L_ENA; + else + dac = WM8994_AIF1DAC1R_ENA | WM8994_AIF1DAC2R_ENA | + WM8994_AIF1DAC1L_ENA | WM8994_AIF1DAC2L_ENA; + + snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_4, + mask, adc); + snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_5, + mask, dac); + snd_soc_update_bits(codec, WM8994_CLOCKING_1, + WM8994_AIF1DSPCLK_ENA | + WM8994_SYSDSPCLK_ENA, + WM8994_AIF1DSPCLK_ENA | + WM8994_SYSDSPCLK_ENA); + snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_4, mask, + WM8994_AIF1ADC1R_ENA | + WM8994_AIF1ADC1L_ENA | + WM8994_AIF1ADC2R_ENA | + WM8994_AIF1ADC2L_ENA); + snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_5, mask, + WM8994_AIF1DAC1R_ENA | + WM8994_AIF1DAC1L_ENA | + WM8994_AIF1DAC2R_ENA | + WM8994_AIF1DAC2L_ENA); break; - } - /* We may also have postponed startup of DSP, handle that. */ - wm8958_aif_ev(w, kcontrol, event); + case SND_SOC_DAPM_PRE_PMD: + case SND_SOC_DAPM_POST_PMD: + snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_5, + mask, 0); + snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_4, + mask, 0); + + val = snd_soc_read(codec, WM8994_CLOCKING_1); + if (val & WM8994_AIF2DSPCLK_ENA) + val = WM8994_SYSDSPCLK_ENA; + else + val = 0; + snd_soc_update_bits(codec, WM8994_CLOCKING_1, + WM8994_SYSDSPCLK_ENA | + WM8994_AIF1DSPCLK_ENA, val); + break; + } return 0; } -static int late_disable_ev(struct snd_soc_dapm_widget *w, - struct snd_kcontrol *kcontrol, int event) +static int aif2clk_ev(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) { struct snd_soc_codec *codec = w->codec; - struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec); + int dac; + int adc; + int val; switch (event) { + case SND_SOC_DAPM_PRE_PMU: + val = snd_soc_read(codec, WM8994_AIF2_CONTROL_1); + if ((val & WM8994_AIF2ADCL_SRC) && + (val & WM8994_AIF2ADCR_SRC)) + adc = WM8994_AIF2ADCR_ENA; + else if (!(val & WM8994_AIF2ADCL_SRC) && + !(val & WM8994_AIF2ADCR_SRC)) + adc = WM8994_AIF2ADCL_ENA; + else + adc = WM8994_AIF2ADCL_ENA | WM8994_AIF2ADCR_ENA; + + + val = snd_soc_read(codec, WM8994_AIF2_CONTROL_2); + if ((val & WM8994_AIF2DACL_SRC) && + (val & WM8994_AIF2DACR_SRC)) + dac = WM8994_AIF2DACR_ENA; + else if (!(val & WM8994_AIF2DACL_SRC) && + !(val & WM8994_AIF2DACR_SRC)) + dac = WM8994_AIF2DACL_ENA; + else + dac = WM8994_AIF2DACL_ENA | WM8994_AIF2DACR_ENA; + + snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_4, + WM8994_AIF2ADCL_ENA | + WM8994_AIF2ADCR_ENA, adc); + snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_5, + WM8994_AIF2DACL_ENA | + WM8994_AIF2DACR_ENA, dac); + snd_soc_update_bits(codec, WM8994_CLOCKING_1, + WM8994_AIF2DSPCLK_ENA | + WM8994_SYSDSPCLK_ENA, + WM8994_AIF2DSPCLK_ENA | + WM8994_SYSDSPCLK_ENA); + snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_4, + WM8994_AIF2ADCL_ENA | + WM8994_AIF2ADCR_ENA, + WM8994_AIF2ADCL_ENA | + WM8994_AIF2ADCR_ENA); + snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_5, + WM8994_AIF2DACL_ENA | + WM8994_AIF2DACR_ENA, + WM8994_AIF2DACL_ENA | + WM8994_AIF2DACR_ENA); + break; + + case SND_SOC_DAPM_PRE_PMD: case SND_SOC_DAPM_POST_PMD: - if (wm8994->aif1clk_disable) { - snd_soc_update_bits(codec, WM8994_AIF1_CLOCKING_1, - WM8994_AIF1CLK_ENA_MASK, 0); - wm8994->aif1clk_disable = 0; - } - if (wm8994->aif2clk_disable) { - snd_soc_update_bits(codec, WM8994_AIF2_CLOCKING_1, - WM8994_AIF2CLK_ENA_MASK, 0); - wm8994->aif2clk_disable = 0; - } + snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_5, + WM8994_AIF2DACL_ENA | + WM8994_AIF2DACR_ENA, 0); + snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_5, + WM8994_AIF2ADCL_ENA | + WM8994_AIF2ADCR_ENA, 0); + + val = snd_soc_read(codec, WM8994_CLOCKING_1); + if (val & WM8994_AIF1DSPCLK_ENA) + val = WM8994_SYSDSPCLK_ENA; + else + val = 0; + snd_soc_update_bits(codec, WM8994_CLOCKING_1, + WM8994_SYSDSPCLK_ENA | + WM8994_AIF2DSPCLK_ENA, val); break; } return 0; } -static int aif1clk_ev(struct snd_soc_dapm_widget *w, - struct snd_kcontrol *kcontrol, int event) +static int aif1clk_late_ev(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) { struct snd_soc_codec *codec = w->codec; struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec); @@ -1071,8 +1180,8 @@ static int aif1clk_ev(struct snd_soc_dapm_widget *w, return 0; } -static int aif2clk_ev(struct snd_soc_dapm_widget *w, - struct snd_kcontrol *kcontrol, int event) +static int aif2clk_late_ev(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) { struct snd_soc_codec *codec = w->codec; struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec); @@ -1089,6 +1198,63 @@ static int aif2clk_ev(struct snd_soc_dapm_widget *w, return 0; } +static int late_enable_ev(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_codec *codec = w->codec; + struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + if (wm8994->aif1clk_enable) { + aif1clk_ev(w, kcontrol, event); + snd_soc_update_bits(codec, WM8994_AIF1_CLOCKING_1, + WM8994_AIF1CLK_ENA_MASK, + WM8994_AIF1CLK_ENA); + wm8994->aif1clk_enable = 0; + } + if (wm8994->aif2clk_enable) { + aif2clk_ev(w, kcontrol, event); + snd_soc_update_bits(codec, WM8994_AIF2_CLOCKING_1, + WM8994_AIF2CLK_ENA_MASK, + WM8994_AIF2CLK_ENA); + wm8994->aif2clk_enable = 0; + } + break; + } + + /* We may also have postponed startup of DSP, handle that. */ + wm8958_aif_ev(w, kcontrol, event); + + return 0; +} + +static int late_disable_ev(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_codec *codec = w->codec; + struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec); + + switch (event) { + case SND_SOC_DAPM_POST_PMD: + if (wm8994->aif1clk_disable) { + snd_soc_update_bits(codec, WM8994_AIF1_CLOCKING_1, + WM8994_AIF1CLK_ENA_MASK, 0); + aif1clk_ev(w, kcontrol, event); + wm8994->aif1clk_disable = 0; + } + if (wm8994->aif2clk_disable) { + snd_soc_update_bits(codec, WM8994_AIF2_CLOCKING_1, + WM8994_AIF2CLK_ENA_MASK, 0); + aif2clk_ev(w, kcontrol, event); + wm8994->aif2clk_disable = 0; + } + break; + } + + return 0; +} + static int adc_mux_ev(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { @@ -1385,9 +1551,9 @@ static const struct snd_kcontrol_new aif2dacr_src_mux = SOC_DAPM_ENUM("AIF2DACR Mux", aif2dacr_src_enum); static const struct snd_soc_dapm_widget wm8994_lateclk_revd_widgets[] = { -SND_SOC_DAPM_SUPPLY("AIF1CLK", SND_SOC_NOPM, 0, 0, aif1clk_ev, +SND_SOC_DAPM_SUPPLY("AIF1CLK", SND_SOC_NOPM, 0, 0, aif1clk_late_ev, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), -SND_SOC_DAPM_SUPPLY("AIF2CLK", SND_SOC_NOPM, 0, 0, aif2clk_ev, +SND_SOC_DAPM_SUPPLY("AIF2CLK", SND_SOC_NOPM, 0, 0, aif2clk_late_ev, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_PGA_E("Late DAC1L Enable PGA", SND_SOC_NOPM, 0, 0, NULL, 0, @@ -1416,8 +1582,10 @@ SND_SOC_DAPM_POST("Late Disable PGA", late_disable_ev) }; static const struct snd_soc_dapm_widget wm8994_lateclk_widgets[] = { -SND_SOC_DAPM_SUPPLY("AIF1CLK", WM8994_AIF1_CLOCKING_1, 0, 0, NULL, 0), -SND_SOC_DAPM_SUPPLY("AIF2CLK", WM8994_AIF2_CLOCKING_1, 0, 0, NULL, 0), +SND_SOC_DAPM_SUPPLY("AIF1CLK", WM8994_AIF1_CLOCKING_1, 0, 0, aif1clk_ev, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD), +SND_SOC_DAPM_SUPPLY("AIF2CLK", WM8994_AIF2_CLOCKING_1, 0, 0, aif2clk_ev, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD), SND_SOC_DAPM_PGA("Direct Voice", SND_SOC_NOPM, 0, 0, NULL, 0), SND_SOC_DAPM_MIXER("SPKL", WM8994_POWER_MANAGEMENT_3, 8, 0, left_speaker_mixer, ARRAY_SIZE(left_speaker_mixer)), @@ -1470,30 +1638,30 @@ SND_SOC_DAPM_SUPPLY("VMID", SND_SOC_NOPM, 0, 0, vmid_event, SND_SOC_DAPM_SUPPLY("CLK_SYS", SND_SOC_NOPM, 0, 0, clk_sys_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), -SND_SOC_DAPM_SUPPLY("DSP1CLK", WM8994_CLOCKING_1, 3, 0, NULL, 0), -SND_SOC_DAPM_SUPPLY("DSP2CLK", WM8994_CLOCKING_1, 2, 0, NULL, 0), -SND_SOC_DAPM_SUPPLY("DSPINTCLK", WM8994_CLOCKING_1, 1, 0, NULL, 0), +SND_SOC_DAPM_SUPPLY("DSP1CLK", SND_SOC_NOPM, 3, 0, NULL, 0), +SND_SOC_DAPM_SUPPLY("DSP2CLK", SND_SOC_NOPM, 2, 0, NULL, 0), +SND_SOC_DAPM_SUPPLY("DSPINTCLK", SND_SOC_NOPM, 1, 0, NULL, 0), SND_SOC_DAPM_AIF_OUT("AIF1ADC1L", NULL, - 0, WM8994_POWER_MANAGEMENT_4, 9, 0), + 0, SND_SOC_NOPM, 9, 0), SND_SOC_DAPM_AIF_OUT("AIF1ADC1R", NULL, - 0, WM8994_POWER_MANAGEMENT_4, 8, 0), + 0, SND_SOC_NOPM, 8, 0), SND_SOC_DAPM_AIF_IN_E("AIF1DAC1L", NULL, 0, - WM8994_POWER_MANAGEMENT_5, 9, 0, wm8958_aif_ev, + SND_SOC_NOPM, 9, 0, wm8958_aif_ev, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_AIF_IN_E("AIF1DAC1R", NULL, 0, - WM8994_POWER_MANAGEMENT_5, 8, 0, wm8958_aif_ev, + SND_SOC_NOPM, 8, 0, wm8958_aif_ev, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_AIF_OUT("AIF1ADC2L", NULL, - 0, WM8994_POWER_MANAGEMENT_4, 11, 0), + 0, SND_SOC_NOPM, 11, 0), SND_SOC_DAPM_AIF_OUT("AIF1ADC2R", NULL, - 0, WM8994_POWER_MANAGEMENT_4, 10, 0), + 0, SND_SOC_NOPM, 10, 0), SND_SOC_DAPM_AIF_IN_E("AIF1DAC2L", NULL, 0, - WM8994_POWER_MANAGEMENT_5, 11, 0, wm8958_aif_ev, + SND_SOC_NOPM, 11, 0, wm8958_aif_ev, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_AIF_IN_E("AIF1DAC2R", NULL, 0, - WM8994_POWER_MANAGEMENT_5, 10, 0, wm8958_aif_ev, + SND_SOC_NOPM, 10, 0, wm8958_aif_ev, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_MIXER("AIF1ADC1L Mixer", SND_SOC_NOPM, 0, 0, @@ -1520,14 +1688,14 @@ SND_SOC_DAPM_MIXER("DAC1R Mixer", SND_SOC_NOPM, 0, 0, dac1r_mix, ARRAY_SIZE(dac1r_mix)), SND_SOC_DAPM_AIF_OUT("AIF2ADCL", NULL, 0, - WM8994_POWER_MANAGEMENT_4, 13, 0), + SND_SOC_NOPM, 13, 0), SND_SOC_DAPM_AIF_OUT("AIF2ADCR", NULL, 0, - WM8994_POWER_MANAGEMENT_4, 12, 0), + SND_SOC_NOPM, 12, 0), SND_SOC_DAPM_AIF_IN_E("AIF2DACL", NULL, 0, - WM8994_POWER_MANAGEMENT_5, 13, 0, wm8958_aif_ev, + SND_SOC_NOPM, 13, 0, wm8958_aif_ev, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), SND_SOC_DAPM_AIF_IN_E("AIF2DACR", NULL, 0, - WM8994_POWER_MANAGEMENT_5, 12, 0, wm8958_aif_ev, + SND_SOC_NOPM, 12, 0, wm8958_aif_ev, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), SND_SOC_DAPM_AIF_IN("AIF1DACDAT", NULL, 0, SND_SOC_NOPM, 0, 0), -- cgit v0.10.2 From 1bdae6f49c52af3a58998cdb051dbd5b942f9273 Mon Sep 17 00:00:00 2001 From: Narayanan G Date: Thu, 9 Feb 2012 12:41:37 +0530 Subject: dma40: Improve the logic of stopping logical chan can be directly stopped by issuing a SUSPEND_REQ on the EE bits. There is no need to suspend the physical channel and restart it. Also, the support for pre-V2 hw is discontinued. EE bits for writing: 00: disable only if AS=11 or AS=00 01: enable 10: suspend_req only if AS=01 & EE=01 or EE=11 11: round / no change for writing Signed-off-by: Narayanan G Acked-by: Linus Walleij Signed-off-by: Vinod Koul diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index bdd41d4..c5f26cc 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -69,6 +69,22 @@ enum d40_command { }; /* + * enum d40_events - The different Event Enables for the event lines. + * + * @D40_DEACTIVATE_EVENTLINE: De-activate Event line, stopping the logical chan. + * @D40_ACTIVATE_EVENTLINE: Activate the Event line, to start a logical chan. + * @D40_SUSPEND_REQ_EVENTLINE: Requesting for suspending a event line. + * @D40_ROUND_EVENTLINE: Status check for event line. + */ + +enum d40_events { + D40_DEACTIVATE_EVENTLINE = 0, + D40_ACTIVATE_EVENTLINE = 1, + D40_SUSPEND_REQ_EVENTLINE = 2, + D40_ROUND_EVENTLINE = 3 +}; + +/* * These are the registers that has to be saved and later restored * when the DMA hw is powered off. * TODO: Add save/restore of D40_DREG_GCC on dma40 v3 or later, if that works. @@ -870,8 +886,8 @@ static void d40_save_restore_registers(struct d40_base *base, bool save) } #endif -static int d40_channel_execute_command(struct d40_chan *d40c, - enum d40_command command) +static int __d40_execute_command_phy(struct d40_chan *d40c, + enum d40_command command) { u32 status; int i; @@ -880,6 +896,12 @@ static int d40_channel_execute_command(struct d40_chan *d40c, unsigned long flags; u32 wmask; + if (command == D40_DMA_STOP) { + ret = __d40_execute_command_phy(d40c, D40_DMA_SUSPEND_REQ); + if (ret) + return ret; + } + spin_lock_irqsave(&d40c->base->execmd_lock, flags); if (d40c->phy_chan->num % 2 == 0) @@ -973,67 +995,109 @@ static void d40_term_all(struct d40_chan *d40c) } d40c->pending_tx = 0; - d40c->busy = false; } -static void __d40_config_set_event(struct d40_chan *d40c, bool enable, - u32 event, int reg) +static void __d40_config_set_event(struct d40_chan *d40c, + enum d40_events event_type, u32 event, + int reg) { void __iomem *addr = chan_base(d40c) + reg; int tries; + u32 status; + + switch (event_type) { + + case D40_DEACTIVATE_EVENTLINE: - if (!enable) { writel((D40_DEACTIVATE_EVENTLINE << D40_EVENTLINE_POS(event)) | ~D40_EVENTLINE_MASK(event), addr); - return; - } + break; + + case D40_SUSPEND_REQ_EVENTLINE: + status = (readl(addr) & D40_EVENTLINE_MASK(event)) >> + D40_EVENTLINE_POS(event); + + if (status == D40_DEACTIVATE_EVENTLINE || + status == D40_SUSPEND_REQ_EVENTLINE) + break; + writel((D40_SUSPEND_REQ_EVENTLINE << D40_EVENTLINE_POS(event)) + | ~D40_EVENTLINE_MASK(event), addr); + + for (tries = 0 ; tries < D40_SUSPEND_MAX_IT; tries++) { + + status = (readl(addr) & D40_EVENTLINE_MASK(event)) >> + D40_EVENTLINE_POS(event); + + cpu_relax(); + /* + * Reduce the number of bus accesses while + * waiting for the DMA to suspend. + */ + udelay(3); + + if (status == D40_DEACTIVATE_EVENTLINE) + break; + } + + if (tries == D40_SUSPEND_MAX_IT) { + chan_err(d40c, + "unable to stop the event_line chl %d (log: %d)" + "status %x\n", d40c->phy_chan->num, + d40c->log_num, status); + } + break; + + case D40_ACTIVATE_EVENTLINE: /* * The hardware sometimes doesn't register the enable when src and dst * event lines are active on the same logical channel. Retry to ensure * it does. Usually only one retry is sufficient. */ - tries = 100; - while (--tries) { - writel((D40_ACTIVATE_EVENTLINE << D40_EVENTLINE_POS(event)) - | ~D40_EVENTLINE_MASK(event), addr); + tries = 100; + while (--tries) { + writel((D40_ACTIVATE_EVENTLINE << + D40_EVENTLINE_POS(event)) | + ~D40_EVENTLINE_MASK(event), addr); - if (readl(addr) & D40_EVENTLINE_MASK(event)) - break; - } + if (readl(addr) & D40_EVENTLINE_MASK(event)) + break; + } - if (tries != 99) - dev_dbg(chan2dev(d40c), - "[%s] workaround enable S%cLNK (%d tries)\n", - __func__, reg == D40_CHAN_REG_SSLNK ? 'S' : 'D', - 100 - tries); + if (tries != 99) + dev_dbg(chan2dev(d40c), + "[%s] workaround enable S%cLNK (%d tries)\n", + __func__, reg == D40_CHAN_REG_SSLNK ? 'S' : 'D', + 100 - tries); - WARN_ON(!tries); -} + WARN_ON(!tries); + break; -static void d40_config_set_event(struct d40_chan *d40c, bool do_enable) -{ - unsigned long flags; + case D40_ROUND_EVENTLINE: + BUG(); + break; - spin_lock_irqsave(&d40c->phy_chan->lock, flags); + } +} +static void d40_config_set_event(struct d40_chan *d40c, + enum d40_events event_type) +{ /* Enable event line connected to device (or memcpy) */ if ((d40c->dma_cfg.dir == STEDMA40_PERIPH_TO_MEM) || (d40c->dma_cfg.dir == STEDMA40_PERIPH_TO_PERIPH)) { u32 event = D40_TYPE_TO_EVENT(d40c->dma_cfg.src_dev_type); - __d40_config_set_event(d40c, do_enable, event, + __d40_config_set_event(d40c, event_type, event, D40_CHAN_REG_SSLNK); } if (d40c->dma_cfg.dir != STEDMA40_PERIPH_TO_MEM) { u32 event = D40_TYPE_TO_EVENT(d40c->dma_cfg.dst_dev_type); - __d40_config_set_event(d40c, do_enable, event, + __d40_config_set_event(d40c, event_type, event, D40_CHAN_REG_SDLNK); } - - spin_unlock_irqrestore(&d40c->phy_chan->lock, flags); } static u32 d40_chan_has_events(struct d40_chan *d40c) @@ -1047,6 +1111,64 @@ static u32 d40_chan_has_events(struct d40_chan *d40c) return val; } +static int +__d40_execute_command_log(struct d40_chan *d40c, enum d40_command command) +{ + unsigned long flags; + int ret = 0; + u32 active_status; + void __iomem *active_reg; + + if (d40c->phy_chan->num % 2 == 0) + active_reg = d40c->base->virtbase + D40_DREG_ACTIVE; + else + active_reg = d40c->base->virtbase + D40_DREG_ACTIVO; + + + spin_lock_irqsave(&d40c->phy_chan->lock, flags); + + switch (command) { + case D40_DMA_STOP: + case D40_DMA_SUSPEND_REQ: + + active_status = (readl(active_reg) & + D40_CHAN_POS_MASK(d40c->phy_chan->num)) >> + D40_CHAN_POS(d40c->phy_chan->num); + + if (active_status == D40_DMA_RUN) + d40_config_set_event(d40c, D40_SUSPEND_REQ_EVENTLINE); + else + d40_config_set_event(d40c, D40_DEACTIVATE_EVENTLINE); + + if (!d40_chan_has_events(d40c) && (command == D40_DMA_STOP)) + ret = __d40_execute_command_phy(d40c, command); + + break; + + case D40_DMA_RUN: + + d40_config_set_event(d40c, D40_ACTIVATE_EVENTLINE); + ret = __d40_execute_command_phy(d40c, command); + break; + + case D40_DMA_SUSPENDED: + BUG(); + break; + } + + spin_unlock_irqrestore(&d40c->phy_chan->lock, flags); + return ret; +} + +static int d40_channel_execute_command(struct d40_chan *d40c, + enum d40_command command) +{ + if (chan_is_logical(d40c)) + return __d40_execute_command_log(d40c, command); + else + return __d40_execute_command_phy(d40c, command); +} + static u32 d40_get_prmo(struct d40_chan *d40c) { static const unsigned int phy_map[] = { @@ -1149,15 +1271,7 @@ static int d40_pause(struct d40_chan *d40c) spin_lock_irqsave(&d40c->lock, flags); res = d40_channel_execute_command(d40c, D40_DMA_SUSPEND_REQ); - if (res == 0) { - if (chan_is_logical(d40c)) { - d40_config_set_event(d40c, false); - /* Resume the other logical channels if any */ - if (d40_chan_has_events(d40c)) - res = d40_channel_execute_command(d40c, - D40_DMA_RUN); - } - } + pm_runtime_mark_last_busy(d40c->base->dev); pm_runtime_put_autosuspend(d40c->base->dev); spin_unlock_irqrestore(&d40c->lock, flags); @@ -1174,45 +1288,17 @@ static int d40_resume(struct d40_chan *d40c) spin_lock_irqsave(&d40c->lock, flags); pm_runtime_get_sync(d40c->base->dev); - if (d40c->base->rev == 0) - if (chan_is_logical(d40c)) { - res = d40_channel_execute_command(d40c, - D40_DMA_SUSPEND_REQ); - goto no_suspend; - } /* If bytes left to transfer or linked tx resume job */ - if (d40_residue(d40c) || d40_tx_is_linked(d40c)) { - - if (chan_is_logical(d40c)) - d40_config_set_event(d40c, true); - + if (d40_residue(d40c) || d40_tx_is_linked(d40c)) res = d40_channel_execute_command(d40c, D40_DMA_RUN); - } -no_suspend: pm_runtime_mark_last_busy(d40c->base->dev); pm_runtime_put_autosuspend(d40c->base->dev); spin_unlock_irqrestore(&d40c->lock, flags); return res; } -static int d40_terminate_all(struct d40_chan *chan) -{ - unsigned long flags; - int ret = 0; - - ret = d40_pause(chan); - if (!ret && chan_is_physical(chan)) - ret = d40_channel_execute_command(chan, D40_DMA_STOP); - - spin_lock_irqsave(&chan->lock, flags); - d40_term_all(chan); - spin_unlock_irqrestore(&chan->lock, flags); - - return ret; -} - static dma_cookie_t d40_tx_submit(struct dma_async_tx_descriptor *tx) { struct d40_chan *d40c = container_of(tx->chan, @@ -1232,20 +1318,6 @@ static dma_cookie_t d40_tx_submit(struct dma_async_tx_descriptor *tx) static int d40_start(struct d40_chan *d40c) { - if (d40c->base->rev == 0) { - int err; - - if (chan_is_logical(d40c)) { - err = d40_channel_execute_command(d40c, - D40_DMA_SUSPEND_REQ); - if (err) - return err; - } - } - - if (chan_is_logical(d40c)) - d40_config_set_event(d40c, true); - return d40_channel_execute_command(d40c, D40_DMA_RUN); } @@ -1258,10 +1330,10 @@ static struct d40_desc *d40_queue_start(struct d40_chan *d40c) d40d = d40_first_queued(d40c); if (d40d != NULL) { - if (!d40c->busy) + if (!d40c->busy) { d40c->busy = true; - - pm_runtime_get_sync(d40c->base->dev); + pm_runtime_get_sync(d40c->base->dev); + } /* Remove from queue */ d40_desc_remove(d40d); @@ -1388,8 +1460,8 @@ static void dma_tasklet(unsigned long data) return; - err: - /* Rescue manoeuvre if receiving double interrupts */ +err: + /* Rescue manouver if receiving double interrupts */ if (d40c->pending_tx > 0) d40c->pending_tx--; spin_unlock_irqrestore(&d40c->lock, flags); @@ -1770,7 +1842,6 @@ static int d40_config_memcpy(struct d40_chan *d40c) return 0; } - static int d40_free_dma(struct d40_chan *d40c) { @@ -1806,43 +1877,18 @@ static int d40_free_dma(struct d40_chan *d40c) } pm_runtime_get_sync(d40c->base->dev); - res = d40_channel_execute_command(d40c, D40_DMA_SUSPEND_REQ); + res = d40_channel_execute_command(d40c, D40_DMA_STOP); if (res) { - chan_err(d40c, "suspend failed\n"); + chan_err(d40c, "stop failed\n"); goto out; } - if (chan_is_logical(d40c)) { - /* Release logical channel, deactivate the event line */ + d40_alloc_mask_free(phy, is_src, chan_is_logical(d40c) ? event : 0); - d40_config_set_event(d40c, false); + if (chan_is_logical(d40c)) d40c->base->lookup_log_chans[d40c->log_num] = NULL; - - /* - * Check if there are more logical allocation - * on this phy channel. - */ - if (!d40_alloc_mask_free(phy, is_src, event)) { - /* Resume the other logical channels if any */ - if (d40_chan_has_events(d40c)) { - res = d40_channel_execute_command(d40c, - D40_DMA_RUN); - if (res) - chan_err(d40c, - "Executing RUN command\n"); - } - goto out; - } - } else { - (void) d40_alloc_mask_free(phy, is_src, 0); - } - - /* Release physical channel */ - res = d40_channel_execute_command(d40c, D40_DMA_STOP); - if (res) { - chan_err(d40c, "Failed to stop channel\n"); - goto out; - } + else + d40c->base->lookup_phy_chans[phy->num] = NULL; if (d40c->busy) { pm_runtime_mark_last_busy(d40c->base->dev); @@ -1852,7 +1898,6 @@ static int d40_free_dma(struct d40_chan *d40c) d40c->busy = false; d40c->phy_chan = NULL; d40c->configured = false; - d40c->base->lookup_phy_chans[phy->num] = NULL; out: pm_runtime_mark_last_busy(d40c->base->dev); @@ -2371,6 +2416,31 @@ static void d40_issue_pending(struct dma_chan *chan) spin_unlock_irqrestore(&d40c->lock, flags); } +static void d40_terminate_all(struct dma_chan *chan) +{ + unsigned long flags; + struct d40_chan *d40c = container_of(chan, struct d40_chan, chan); + int ret; + + spin_lock_irqsave(&d40c->lock, flags); + + pm_runtime_get_sync(d40c->base->dev); + ret = d40_channel_execute_command(d40c, D40_DMA_STOP); + if (ret) + chan_err(d40c, "Failed to stop channel\n"); + + d40_term_all(d40c); + pm_runtime_mark_last_busy(d40c->base->dev); + pm_runtime_put_autosuspend(d40c->base->dev); + if (d40c->busy) { + pm_runtime_mark_last_busy(d40c->base->dev); + pm_runtime_put_autosuspend(d40c->base->dev); + } + d40c->busy = false; + + spin_unlock_irqrestore(&d40c->lock, flags); +} + static int dma40_config_to_halfchannel(struct d40_chan *d40c, struct stedma40_half_channel_info *info, @@ -2551,7 +2621,8 @@ static int d40_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, switch (cmd) { case DMA_TERMINATE_ALL: - return d40_terminate_all(d40c); + d40_terminate_all(chan); + return 0; case DMA_PAUSE: return d40_pause(d40c); case DMA_RESUME: @@ -2908,6 +2979,12 @@ static struct d40_base * __init d40_hw_detect_init(struct platform_device *pdev) dev_info(&pdev->dev, "hardware revision: %d @ 0x%x\n", rev, res->start); + if (rev < 2) { + d40_err(&pdev->dev, "hardware revision: %d is not supported", + rev); + goto failure; + } + plat_data = pdev->dev.platform_data; /* Count the number of logical channels in use */ @@ -2998,6 +3075,7 @@ failure: if (base) { kfree(base->lcla_pool.alloc_map); + kfree(base->reg_val_backup_chan); kfree(base->lookup_log_chans); kfree(base->lookup_phy_chans); kfree(base->phy_res); diff --git a/drivers/dma/ste_dma40_ll.h b/drivers/dma/ste_dma40_ll.h index 8d3d490..51e8e53 100644 --- a/drivers/dma/ste_dma40_ll.h +++ b/drivers/dma/ste_dma40_ll.h @@ -62,8 +62,6 @@ #define D40_SREG_ELEM_LOG_LIDX_MASK (0xFF << D40_SREG_ELEM_LOG_LIDX_POS) /* Link register */ -#define D40_DEACTIVATE_EVENTLINE 0x0 -#define D40_ACTIVATE_EVENTLINE 0x1 #define D40_EVENTLINE_POS(i) (2 * i) #define D40_EVENTLINE_MASK(i) (0x3 << D40_EVENTLINE_POS(i)) -- cgit v0.10.2 From 15e4b78d7338a41b020d29dab7ac13a234ebe833 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 12 Apr 2012 18:12:43 +0200 Subject: dma/ste_dma40: explicitly include regulator consumer header The patch "ARM: amba: Remove AMBA level regulator support" breaks the DMA40 driver since the header implicitly included the regulator consumer header. So include it explicitly and fix the build error. Cc: Mark Brown Signed-off-by: Linus Walleij Signed-off-by: Vinod Koul diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index c5f26cc..9417042 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -18,6 +18,7 @@ #include #include #include +#include #include -- cgit v0.10.2 From 7e426da823fc7cd428b82ff2cf3615da24c73352 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 12 Apr 2012 18:12:52 +0200 Subject: dma/ste_dma40: fix erroneous comparison A small fallout from Vinod's conversions to dma_transfer_direction, this small comparison was done with a dma_data_direction instead. Fix it by comparing against the correct enum. Signed-off-by: Linus Walleij Signed-off-by: Vinod Koul diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index 9417042..2ed1ac3 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -2116,7 +2116,7 @@ d40_prep_sg(struct dma_chan *dchan, struct scatterlist *sg_src, if (sg_next(&sg_src[sg_len - 1]) == sg_src) desc->cyclic = true; - if (direction != DMA_NONE) { + if (direction != DMA_TRANS_NONE) { dma_addr_t dev_addr = d40_get_dev_addr(chan, direction); if (direction == DMA_DEV_TO_MEM) -- cgit v0.10.2 From f0c4b8d653f5ee091fb8d4d02ed7eaad397491bb Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 20 Apr 2012 17:20:08 +0100 Subject: ARM: 7396/1: errata: only handle ARM erratum #326103 on affected cores Erratum #326103 ("FSR write bit incorrect on a SWP to read-only memory") only affects the ARM 1136 core prior to r1p0. The workaround disassembles the faulting instruction to determine whether it was a read or write access on all v6 cores. An issue has been reported on the ARM 11MPCore whereby loading the faulting instruction may happen in parallel with that page being unmapped, resulting in a deadlock due to the lack of TLB broadcasting in hardware: http://lists.infradead.org/pipermail/linux-arm-kernel/2012-March/091561.html This patch limits the workaround so that it is only used on affected cores, which are known to be UP only. Other v6 cores can rely on the FSR to indicate the access type correctly. Cc: stable@vger.kernel.org Signed-off-by: Will Deacon Signed-off-by: Russell King diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index cf006d4..36586dba 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1186,6 +1186,15 @@ if !MMU source "arch/arm/Kconfig-nommu" endif +config ARM_ERRATA_326103 + bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory" + depends on CPU_V6 + help + Executing a SWP instruction to read-only memory does not set bit 11 + of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to + treat the access as a read, preventing a COW from occurring and + causing the faulting task to livelock. + config ARM_ERRATA_411920 bool "ARM errata: Invalidation of the Instruction Cache operation can fail" depends on CPU_V6 || CPU_V6K diff --git a/arch/arm/mm/abort-ev6.S b/arch/arm/mm/abort-ev6.S index ff1f7cc..8074199 100644 --- a/arch/arm/mm/abort-ev6.S +++ b/arch/arm/mm/abort-ev6.S @@ -26,18 +26,23 @@ ENTRY(v6_early_abort) mrc p15, 0, r1, c5, c0, 0 @ get FSR mrc p15, 0, r0, c6, c0, 0 @ get FAR /* - * Faulty SWP instruction on 1136 doesn't set bit 11 in DFSR (erratum 326103). - * The test below covers all the write situations, including Java bytecodes + * Faulty SWP instruction on 1136 doesn't set bit 11 in DFSR. */ - bic r1, r1, #1 << 11 @ clear bit 11 of FSR +#ifdef CONFIG_ARM_ERRATA_326103 + ldr ip, =0x4107b36 + mrc p15, 0, r3, c0, c0, 0 @ get processor id + teq ip, r3, lsr #4 @ r0 ARM1136? + bne do_DataAbort tst r5, #PSR_J_BIT @ Java? + tsteq r5, #PSR_T_BIT @ Thumb? bne do_DataAbort - do_thumb_abort fsr=r1, pc=r4, psr=r5, tmp=r3 - ldreq r3, [r4] @ read aborted ARM instruction + bic r1, r1, #1 << 11 @ clear bit 11 of FSR + ldr r3, [r4] @ read aborted ARM instruction #ifdef CONFIG_CPU_ENDIAN_BE8 - reveq r3, r3 + rev r3, r3 #endif do_ldrd_abort tmp=ip, insn=r3 tst r3, #1 << 20 @ L = 0 -> write orreq r1, r1, #1 << 11 @ yes. +#endif b do_DataAbort -- cgit v0.10.2 From f154fe9b806574437b47f08e924ad10c0e240b23 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 20 Apr 2012 17:21:08 +0100 Subject: ARM: 7397/1: l2x0: only apply workaround for erratum #753970 on PL310 The workaround for PL310 erratum #753970 can lead to deadlock on systems with an L220 cache controller. This patch makes the workaround effective only when the cache controller is identified as a PL310 at probe time. Cc: stable@vger.kernel.org Signed-off-by: Will Deacon Signed-off-by: Russell King diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c index a53fd2a..a8d02c0 100644 --- a/arch/arm/mm/cache-l2x0.c +++ b/arch/arm/mm/cache-l2x0.c @@ -32,6 +32,7 @@ static void __iomem *l2x0_base; static DEFINE_RAW_SPINLOCK(l2x0_lock); static u32 l2x0_way_mask; /* Bitmask of active ways */ static u32 l2x0_size; +static unsigned long sync_reg_offset = L2X0_CACHE_SYNC; struct l2x0_regs l2x0_saved_regs; @@ -61,12 +62,7 @@ static inline void cache_sync(void) { void __iomem *base = l2x0_base; -#ifdef CONFIG_PL310_ERRATA_753970 - /* write to an unmmapped register */ - writel_relaxed(0, base + L2X0_DUMMY_REG); -#else - writel_relaxed(0, base + L2X0_CACHE_SYNC); -#endif + writel_relaxed(0, base + sync_reg_offset); cache_wait(base + L2X0_CACHE_SYNC, 1); } @@ -331,6 +327,10 @@ void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask) else ways = 8; type = "L310"; +#ifdef CONFIG_PL310_ERRATA_753970 + /* Unmapped register. */ + sync_reg_offset = L2X0_DUMMY_REG; +#endif break; case L2X0_CACHE_ID_PART_L210: ways = (aux >> 13) & 0xf; -- cgit v0.10.2 From ab4d536890853ab6675ede65db40e2c0980cb0ea Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 20 Apr 2012 17:22:11 +0100 Subject: ARM: 7398/1: l2x0: only write to debug registers on PL310 PL310 errata #588369 and #727915 require writes to the debug registers of the cache controller to work around known problems. Writing these registers on L220 may cause deadlock, so ensure that we only perform this operation when we identify a PL310 at probe time. Cc: stable@vger.kernel.org Signed-off-by: Will Deacon Signed-off-by: Russell King diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c index a8d02c0..2a8e380 100644 --- a/arch/arm/mm/cache-l2x0.c +++ b/arch/arm/mm/cache-l2x0.c @@ -81,10 +81,13 @@ static inline void l2x0_inv_line(unsigned long addr) } #if defined(CONFIG_PL310_ERRATA_588369) || defined(CONFIG_PL310_ERRATA_727915) +static inline void debug_writel(unsigned long val) +{ + if (outer_cache.set_debug) + outer_cache.set_debug(val); +} -#define debug_writel(val) outer_cache.set_debug(val) - -static void l2x0_set_debug(unsigned long val) +static void pl310_set_debug(unsigned long val) { writel_relaxed(val, l2x0_base + L2X0_DEBUG_CTRL); } @@ -94,7 +97,7 @@ static inline void debug_writel(unsigned long val) { } -#define l2x0_set_debug NULL +#define pl310_set_debug NULL #endif #ifdef CONFIG_PL310_ERRATA_588369 @@ -331,6 +334,7 @@ void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask) /* Unmapped register. */ sync_reg_offset = L2X0_DUMMY_REG; #endif + outer_cache.set_debug = pl310_set_debug; break; case L2X0_CACHE_ID_PART_L210: ways = (aux >> 13) & 0xf; @@ -379,7 +383,6 @@ void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask) outer_cache.flush_all = l2x0_flush_all; outer_cache.inv_all = l2x0_inv_all; outer_cache.disable = l2x0_disable; - outer_cache.set_debug = l2x0_set_debug; printk(KERN_INFO "%s cache controller enabled\n", type); printk(KERN_INFO "l2x0: %d ways, CACHE_ID 0x%08x, AUX_CTRL 0x%08x, Cache size: %d B\n", -- cgit v0.10.2 From 2498814fcb3068f19b82b1519b4038721f61af43 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Mon, 23 Apr 2012 15:38:28 +0100 Subject: ARM: 7399/1: vfp: move user vfp state save/restore code out of signal.c The user VFP state must be preserved (subject to ucontext modifications) across invocation of a signal handler and this is currently handled by vfp_{preserve,restore}_context in signal.c Since this code requires intimate low-level knowledge of the VFP state, this patch moves it into vfpmodule.c. Signed-off-by: Will Deacon Signed-off-by: Russell King diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h index d4c24d4..0f04d84 100644 --- a/arch/arm/include/asm/thread_info.h +++ b/arch/arm/include/asm/thread_info.h @@ -118,6 +118,13 @@ extern void iwmmxt_task_switch(struct thread_info *); extern void vfp_sync_hwstate(struct thread_info *); extern void vfp_flush_hwstate(struct thread_info *); +struct user_vfp; +struct user_vfp_exc; + +extern int vfp_preserve_user_clear_hwstate(struct user_vfp __user *, + struct user_vfp_exc __user *); +extern int vfp_restore_user_hwstate(struct user_vfp __user *, + struct user_vfp_exc __user *); #endif /* diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c index 7cb532f..d68d1b6 100644 --- a/arch/arm/kernel/signal.c +++ b/arch/arm/kernel/signal.c @@ -180,44 +180,23 @@ static int restore_iwmmxt_context(struct iwmmxt_sigframe *frame) static int preserve_vfp_context(struct vfp_sigframe __user *frame) { - struct thread_info *thread = current_thread_info(); - struct vfp_hard_struct *h = &thread->vfpstate.hard; const unsigned long magic = VFP_MAGIC; const unsigned long size = VFP_STORAGE_SIZE; int err = 0; - vfp_sync_hwstate(thread); __put_user_error(magic, &frame->magic, err); __put_user_error(size, &frame->size, err); - /* - * Copy the floating point registers. There can be unused - * registers see asm/hwcap.h for details. - */ - err |= __copy_to_user(&frame->ufp.fpregs, &h->fpregs, - sizeof(h->fpregs)); - /* - * Copy the status and control register. - */ - __put_user_error(h->fpscr, &frame->ufp.fpscr, err); - - /* - * Copy the exception registers. - */ - __put_user_error(h->fpexc, &frame->ufp_exc.fpexc, err); - __put_user_error(h->fpinst, &frame->ufp_exc.fpinst, err); - __put_user_error(h->fpinst2, &frame->ufp_exc.fpinst2, err); + if (err) + return -EFAULT; - return err ? -EFAULT : 0; + return vfp_preserve_user_clear_hwstate(&frame->ufp, &frame->ufp_exc); } static int restore_vfp_context(struct vfp_sigframe __user *frame) { - struct thread_info *thread = current_thread_info(); - struct vfp_hard_struct *h = &thread->vfpstate.hard; unsigned long magic; unsigned long size; - unsigned long fpexc; int err = 0; __get_user_error(magic, &frame->magic, err); @@ -228,33 +207,7 @@ static int restore_vfp_context(struct vfp_sigframe __user *frame) if (magic != VFP_MAGIC || size != VFP_STORAGE_SIZE) return -EINVAL; - vfp_flush_hwstate(thread); - - /* - * Copy the floating point registers. There can be unused - * registers see asm/hwcap.h for details. - */ - err |= __copy_from_user(&h->fpregs, &frame->ufp.fpregs, - sizeof(h->fpregs)); - /* - * Copy the status and control register. - */ - __get_user_error(h->fpscr, &frame->ufp.fpscr, err); - - /* - * Sanitise and restore the exception registers. - */ - __get_user_error(fpexc, &frame->ufp_exc.fpexc, err); - /* Ensure the VFP is enabled. */ - fpexc |= FPEXC_EN; - /* Ensure FPINST2 is invalid and the exception flag is cleared. */ - fpexc &= ~(FPEXC_EX | FPEXC_FP2V); - h->fpexc = fpexc; - - __get_user_error(h->fpinst, &frame->ufp_exc.fpinst, err); - __get_user_error(h->fpinst2, &frame->ufp_exc.fpinst2, err); - - return err ? -EFAULT : 0; + return vfp_restore_user_hwstate(&frame->ufp, &frame->ufp_exc); } #endif diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c index 858748e..05872d9 100644 --- a/arch/arm/vfp/vfpmodule.c +++ b/arch/arm/vfp/vfpmodule.c @@ -17,6 +17,8 @@ #include #include #include +#include +#include #include #include @@ -529,6 +531,83 @@ void vfp_flush_hwstate(struct thread_info *thread) } /* + * Save the current VFP state into the provided structures and prepare + * for entry into a new function (signal handler). + */ +int vfp_preserve_user_clear_hwstate(struct user_vfp __user *ufp, + struct user_vfp_exc __user *ufp_exc) +{ + struct thread_info *thread = current_thread_info(); + struct vfp_hard_struct *hwstate = &thread->vfpstate.hard; + int err = 0; + + /* Ensure that the saved hwstate is up-to-date. */ + vfp_sync_hwstate(thread); + + /* + * Copy the floating point registers. There can be unused + * registers see asm/hwcap.h for details. + */ + err |= __copy_to_user(&ufp->fpregs, &hwstate->fpregs, + sizeof(hwstate->fpregs)); + /* + * Copy the status and control register. + */ + __put_user_error(hwstate->fpscr, &ufp->fpscr, err); + + /* + * Copy the exception registers. + */ + __put_user_error(hwstate->fpexc, &ufp_exc->fpexc, err); + __put_user_error(hwstate->fpinst, &ufp_exc->fpinst, err); + __put_user_error(hwstate->fpinst2, &ufp_exc->fpinst2, err); + + if (err) + return -EFAULT; + return 0; +} + +/* Sanitise and restore the current VFP state from the provided structures. */ +int vfp_restore_user_hwstate(struct user_vfp __user *ufp, + struct user_vfp_exc __user *ufp_exc) +{ + struct thread_info *thread = current_thread_info(); + struct vfp_hard_struct *hwstate = &thread->vfpstate.hard; + unsigned long fpexc; + int err = 0; + + vfp_flush_hwstate(thread); + + /* + * Copy the floating point registers. There can be unused + * registers see asm/hwcap.h for details. + */ + err |= __copy_from_user(&hwstate->fpregs, &ufp->fpregs, + sizeof(hwstate->fpregs)); + /* + * Copy the status and control register. + */ + __get_user_error(hwstate->fpscr, &ufp->fpscr, err); + + /* + * Sanitise and restore the exception registers. + */ + __get_user_error(fpexc, &ufp_exc->fpexc, err); + + /* Ensure the VFP is enabled. */ + fpexc |= FPEXC_EN; + + /* Ensure FPINST2 is invalid and the exception flag is cleared. */ + fpexc &= ~(FPEXC_EX | FPEXC_FP2V); + hwstate->fpexc = fpexc; + + __get_user_error(hwstate->fpinst, &ufp_exc->fpinst, err); + __get_user_error(hwstate->fpinst2, &ufp_exc->fpinst2, err); + + return err ? -EFAULT : 0; +} + +/* * VFP hardware can lose all context when a CPU goes offline. * As we will be running in SMP mode with CPU hotplug, we will save the * hardware state at every thread switch. We clear our held state when -- cgit v0.10.2 From ff9a184cfb6542bef98aff1789481284e122a4b3 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Mon, 23 Apr 2012 15:42:16 +0100 Subject: ARM: 7400/1: vfp: clear fpscr length and stride bits on entry to sig handler The ARM PCS mandates that the length and stride bits of the fpscr are cleared on entry to and return from a public interface. Although signal handlers run asynchronously with respect to the interrupted function, the handler itself expects to run as though it has been called like a normal function. This patch updates the state mirroring the VFP hardware before entry to a signal handler so that it adheres to the PCS. Furthermore, we disable VFP to ensure that we trap on any floating point operation performed by the signal handler and synchronise the hardware appropriately. A check is inserted after the signal handler to avoid redundant flushing if VFP was not used. Reported-by: Peter Maydell Signed-off-by: Will Deacon Signed-off-by: Russell King diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c index 05872d9..bc683b8 100644 --- a/arch/arm/vfp/vfpmodule.c +++ b/arch/arm/vfp/vfpmodule.c @@ -564,6 +564,21 @@ int vfp_preserve_user_clear_hwstate(struct user_vfp __user *ufp, if (err) return -EFAULT; + + /* Ensure that VFP is disabled. */ + vfp_flush_hwstate(thread); + + /* + * As per the PCS, clear the length and stride bits for function + * entry. + */ + hwstate->fpscr &= ~(FPSCR_LENGTH_MASK | FPSCR_STRIDE_MASK); + + /* + * Disable VFP in the hwstate so that we can detect if it gets + * used. + */ + hwstate->fpexc &= ~FPEXC_EN; return 0; } @@ -576,7 +591,12 @@ int vfp_restore_user_hwstate(struct user_vfp __user *ufp, unsigned long fpexc; int err = 0; - vfp_flush_hwstate(thread); + /* + * If VFP has been used, then disable it to avoid corrupting + * the new thread state. + */ + if (hwstate->fpexc & FPEXC_EN) + vfp_flush_hwstate(thread); /* * Copy the floating point registers. There can be unused -- cgit v0.10.2 From 754aba436bed2051deaa2af7bdda553df056b6fc Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Wed, 18 Apr 2012 22:26:51 +0100 Subject: ARM: 7390/1: dts: versatile-pb/ab fix MMC IRQs The MMCI driver will not work without two IRQs since this is not flagged as a single-irq variant. Looking through the complex IRQ definition for the MMCI on the versatile (including an #if 1 statement forcing MMCI IRQ0 to the VIC) this appears to the the correct IRQ number for both models. Cc: Niklas Hernaeus Signed-off-by: Linus Walleij Signed-off-by: Russell King diff --git a/arch/arm/boot/dts/versatile-ab.dts b/arch/arm/boot/dts/versatile-ab.dts index 0b32925..e2fe319 100644 --- a/arch/arm/boot/dts/versatile-ab.dts +++ b/arch/arm/boot/dts/versatile-ab.dts @@ -173,7 +173,7 @@ mmc@5000 { compatible = "arm,primecell"; reg = < 0x5000 0x1000>; - interrupts = <22>; + interrupts = <22 34>; }; kmi@6000 { compatible = "arm,pl050", "arm,primecell"; diff --git a/arch/arm/boot/dts/versatile-pb.dts b/arch/arm/boot/dts/versatile-pb.dts index 1664610..7e81752 100644 --- a/arch/arm/boot/dts/versatile-pb.dts +++ b/arch/arm/boot/dts/versatile-pb.dts @@ -41,7 +41,7 @@ mmc@b000 { compatible = "arm,primecell"; reg = <0xb000 0x1000>; - interrupts = <23>; + interrupts = <23 34>; }; }; }; -- cgit v0.10.2 From 354535845ffb74d8a4827fbdaa493037d0030eea Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 14 Apr 2012 18:57:10 +0100 Subject: ARM: OMAP: fix DMA vs memory ordering Using coherent DMA memory with the OMAP DMA engine results in unpredictable behaviour due to memory ordering issues; as things stand, there is no guarantee that data written to coherent DMA memory will be visible to the DMA hardware. This is because the OMAP dma_write() accessor contains no barriers, necessary on ARMv6 and above. The effect of this can be seen in comments in the OMAP serial driver, which incorrectly talks about cache flushing for the coherent DMA stuff. Rather than adding barriers to the accessors, add it in the DMA support code just before we enable DMA, and just after we disable DMA. This avoids having barriers for every DMA register access. Acked-by: Tony Lindgren Acked-by: Santosh Shilimkar Signed-off-by: Russell King diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index ecdb3da..c58d896 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -916,6 +916,13 @@ void omap_start_dma(int lch) l |= OMAP_DMA_CCR_BUFFERING_DISABLE; l |= OMAP_DMA_CCR_EN; + /* + * As dma_write() uses IO accessors which are weakly ordered, there + * is no guarantee that data in coherent DMA memory will be visible + * to the DMA device. Add a memory barrier here to ensure that any + * such data is visible prior to enabling DMA. + */ + mb(); p->dma_write(l, CCR, lch); dma_chan[lch].flags |= OMAP_DMA_ACTIVE; @@ -965,6 +972,13 @@ void omap_stop_dma(int lch) p->dma_write(l, CCR, lch); } + /* + * Ensure that data transferred by DMA is visible to any access + * after DMA has been disabled. This is important for coherent + * DMA regions. + */ + mb(); + if (!omap_dma_in_1510_mode() && dma_chan[lch].next_lch != -1) { int next_lch, cur_lch = lch; char dma_chan_link_map[dma_lch_count]; -- cgit v0.10.2 From 9112a6b2fa4201c284c62a389710bd32b48c5f63 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Wed, 18 Apr 2012 16:17:13 -0400 Subject: xtensa: fix build failure in xtensa/kernel/signal.c Caused by commit 3785006ac3c8941feb63097c416de92114a6bc39 "xtensa: don't mask signals if we fail to setup signal stack" It assigns a return value to "ret", but there is no such variable anywhere in scope. Create one. Cc: Oleg Nesterov Cc: Chris Zankel Acked-by: Matt Fleming Signed-off-by: Paul Gortmaker diff --git a/arch/xtensa/kernel/signal.c b/arch/xtensa/kernel/signal.c index b69b000..d78869a 100644 --- a/arch/xtensa/kernel/signal.c +++ b/arch/xtensa/kernel/signal.c @@ -496,6 +496,7 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset) signr = get_signal_to_deliver(&info, &ka, regs, NULL); if (signr > 0) { + int ret; /* Are we from a system call? */ -- cgit v0.10.2 From bfae8ee8d28e6a4ac1d63e8077cb09928d8a557a Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Wed, 18 Apr 2012 16:20:38 -0400 Subject: xtensa: fix build error in xtensa/include/asm/io.h Caused by commit 6c03438edeb5c359af35f060ea016ca65671c269 kernel.h: doesn't explicitly use bug.h, so don't include it. This header uses bug.h so explicitly include it now that the implicit presence was removed by 6c03438ed. Signed-off-by: Paul Gortmaker diff --git a/arch/xtensa/include/asm/io.h b/arch/xtensa/include/asm/io.h index d04cd3a..4beb43c 100644 --- a/arch/xtensa/include/asm/io.h +++ b/arch/xtensa/include/asm/io.h @@ -14,6 +14,7 @@ #ifdef __KERNEL__ #include #include +#include #include #include -- cgit v0.10.2 From 9f3045eca89a2e6fdd1901aafb9e28231d3f31fb Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Wed, 18 Apr 2012 16:29:57 -0400 Subject: irq: hide debug macros so they don't collide with others. The file kernel/irq/debug.h temporarily defines P, PS, PD and then undefines them. However these names aren't really "internal" enough, and collide with other more legit users such as the ones in the xtensa arch, causing: In file included from kernel/irq/internals.h:58:0, from kernel/irq/irqdesc.c:18: kernel/irq/debug.h:8:0: warning: "PS" redefined [enabled by default] arch/xtensa/include/asm/regs.h:59:0: note: this is the location of the previous definition Add a handful of underscores to do a better job of hiding these temporary macros. Cc: Thomas Gleixner Signed-off-by: Paul Gortmaker diff --git a/kernel/irq/debug.h b/kernel/irq/debug.h index 97a8bfa..e75e29e 100644 --- a/kernel/irq/debug.h +++ b/kernel/irq/debug.h @@ -4,10 +4,10 @@ #include -#define P(f) if (desc->status_use_accessors & f) printk("%14s set\n", #f) -#define PS(f) if (desc->istate & f) printk("%14s set\n", #f) +#define ___P(f) if (desc->status_use_accessors & f) printk("%14s set\n", #f) +#define ___PS(f) if (desc->istate & f) printk("%14s set\n", #f) /* FIXME */ -#define PD(f) do { } while (0) +#define ___PD(f) do { } while (0) static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc) { @@ -23,23 +23,23 @@ static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc) print_symbol("%s\n", (unsigned long)desc->action->handler); } - P(IRQ_LEVEL); - P(IRQ_PER_CPU); - P(IRQ_NOPROBE); - P(IRQ_NOREQUEST); - P(IRQ_NOTHREAD); - P(IRQ_NOAUTOEN); + ___P(IRQ_LEVEL); + ___P(IRQ_PER_CPU); + ___P(IRQ_NOPROBE); + ___P(IRQ_NOREQUEST); + ___P(IRQ_NOTHREAD); + ___P(IRQ_NOAUTOEN); - PS(IRQS_AUTODETECT); - PS(IRQS_REPLAY); - PS(IRQS_WAITING); - PS(IRQS_PENDING); + ___PS(IRQS_AUTODETECT); + ___PS(IRQS_REPLAY); + ___PS(IRQS_WAITING); + ___PS(IRQS_PENDING); - PD(IRQS_INPROGRESS); - PD(IRQS_DISABLED); - PD(IRQS_MASKED); + ___PD(IRQS_INPROGRESS); + ___PD(IRQS_DISABLED); + ___PD(IRQS_MASKED); } -#undef P -#undef PS -#undef PD +#undef ___P +#undef ___PS +#undef ___PD -- cgit v0.10.2 From 53ad1c980d4fb450722a575ca17c188808939340 Mon Sep 17 00:00:00 2001 From: David Teigland Date: Wed, 4 Apr 2012 09:49:15 -0500 Subject: dlm: fix QUECVT when convert queue is empty The QUECVT flag should not prevent conversions from being granted immediately when the convert queue is empty. Signed-off-by: David Teigland diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c index fa5c07d..4c58d4a 100644 --- a/fs/dlm/lock.c +++ b/fs/dlm/lock.c @@ -1737,6 +1737,18 @@ static int _can_be_granted(struct dlm_rsb *r, struct dlm_lkb *lkb, int now) return 1; /* + * Even if the convert is compat with all granted locks, + * QUECVT forces it behind other locks on the convert queue. + */ + + if (now && conv && (lkb->lkb_exflags & DLM_LKF_QUECVT)) { + if (list_empty(&r->res_convertqueue)) + return 1; + else + goto out; + } + + /* * The NOORDER flag is set to avoid the standard vms rules on grant * order. */ -- cgit v0.10.2 From 6bbbc30ce6b0ae428575c8af7c2a6c342c534e19 Mon Sep 17 00:00:00 2001 From: Richard Kuo Date: Tue, 15 Nov 2011 16:58:11 -0600 Subject: Hexagon: misc compile warning/error cleanup due to missing headers Fixed warnings/errors for EXPORT_SYMBOL, linux_binprm, elf related defines Signed-off-by: Richard Kuo diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c index 3730221..0f2367c 100644 --- a/arch/hexagon/kernel/dma.c +++ b/arch/hexagon/kernel/dma.c @@ -22,6 +22,7 @@ #include #include #include +#include struct dma_map_ops *dma_ops; EXPORT_SYMBOL(dma_ops); diff --git a/arch/hexagon/kernel/ptrace.c b/arch/hexagon/kernel/ptrace.c index 32342de..96c3b2c 100644 --- a/arch/hexagon/kernel/ptrace.c +++ b/arch/hexagon/kernel/ptrace.c @@ -28,6 +28,7 @@ #include #include #include +#include #include diff --git a/arch/hexagon/kernel/time.c b/arch/hexagon/kernel/time.c index 6bee15c..5d9b33b 100644 --- a/arch/hexagon/kernel/time.c +++ b/arch/hexagon/kernel/time.c @@ -28,6 +28,7 @@ #include #include #include +#include #include #include diff --git a/arch/hexagon/kernel/vdso.c b/arch/hexagon/kernel/vdso.c index f212a45..5d39f42 100644 --- a/arch/hexagon/kernel/vdso.c +++ b/arch/hexagon/kernel/vdso.c @@ -21,6 +21,7 @@ #include #include #include +#include #include -- cgit v0.10.2 From e8e42a5cff0704e83151455307a9b0d78fb43b93 Mon Sep 17 00:00:00 2001 From: Richard Kuo Date: Wed, 7 Mar 2012 15:27:23 -0600 Subject: hexagon: use renamed tick_nohz_idle_* functions Signed-off-by: Richard Kuo diff --git a/arch/hexagon/kernel/process.c b/arch/hexagon/kernel/process.c index 18c4f0b..ff02821 100644 --- a/arch/hexagon/kernel/process.c +++ b/arch/hexagon/kernel/process.c @@ -1,7 +1,7 @@ /* * Process creation support for Hexagon * - * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. + * Copyright (c) 2010-2012, Code Aurora Forum. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and @@ -88,7 +88,7 @@ void (*idle_sleep)(void) = default_idle; void cpu_idle(void) { while (1) { - tick_nohz_stop_sched_tick(1); + tick_nohz_idle_enter(); local_irq_disable(); while (!need_resched()) { idle_sleep(); @@ -97,7 +97,7 @@ void cpu_idle(void) local_irq_disable(); } local_irq_enable(); - tick_nohz_restart_sched_tick(); + tick_nohz_idle_exit(); schedule(); } } -- cgit v0.10.2 From 57f27cca7ab59cec05adc85cef97e9b4f7d28d78 Mon Sep 17 00:00:00 2001 From: "Srivatsa S. Bhat" Date: Thu, 22 Mar 2012 16:58:25 +0530 Subject: hexagon/CPU hotplug: Add missing call to notify_cpu_starting() The scheduler depends on receiving the CPU_STARTING notification, without which we end up into a lot of trouble. So add the missing call to notify_cpu_starting() in the bringup code. Signed-off-by: Srivatsa S. Bhat Signed-off-by: Richard Kuo diff --git a/arch/hexagon/kernel/smp.c b/arch/hexagon/kernel/smp.c index 9b44a9e..0672463 100644 --- a/arch/hexagon/kernel/smp.c +++ b/arch/hexagon/kernel/smp.c @@ -177,7 +177,12 @@ void __cpuinit start_secondary(void) printk(KERN_INFO "%s cpu %d\n", __func__, current_thread_info()->cpu); + notify_cpu_starting(cpu); + + ipi_call_lock(); set_cpu_online(cpu, true); + ipi_call_unlock(); + local_irq_enable(); cpu_idle(); -- cgit v0.10.2 From e00574b7f3181c5277df819e960d5af205e0e87a Mon Sep 17 00:00:00 2001 From: Richard Kuo Date: Thu, 12 Apr 2012 15:57:33 -0500 Subject: hexagon: add missing cpu.h include Signed-off-by: Richard Kuo diff --git a/arch/hexagon/kernel/smp.c b/arch/hexagon/kernel/smp.c index 0672463..1298141 100644 --- a/arch/hexagon/kernel/smp.c +++ b/arch/hexagon/kernel/smp.c @@ -1,7 +1,7 @@ /* * SMP support for Hexagon * - * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. + * Copyright (c) 2010-2012, Code Aurora Forum. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and @@ -28,6 +28,7 @@ #include #include #include +#include #include /* timer_interrupt */ #include -- cgit v0.10.2 From 64ea57d0c77bd85003b63c6090ddfae114ef6508 Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Sun, 15 Apr 2012 20:38:05 +0200 Subject: ath9k: add an extra boolean parameter to ath9k_hw_apply_txpower In order to unifying regulatory limit handling commit ca2c68cc7bc80fc4504fb420df04cce99c9ee6ec (ath9k_hw: clean up tx power handling) introduced a new helper function 'ath9k_hw_apply_txpower', and the direct calls of 'ah->eep_ops->set_txpower' has been replaced by a call of the helper function. This caused a change in the behaviour of the 'ath9k_hw_set_txpowerlimit' function. The purpose of that function is to calculate and store the rate txpower table and the regulatory limit without touching the hardware registers. Before the commit, the 'test' parameter of the function was passed to the 'ah->eep_ops->set_txpower'. Now the calling of the 'set_txpower' function happens indirectly through 'ath9k_hw_apply_txpower', so the 'test' argument of the 'set_txpower' is always 'false'. This patch restores the original behaviour of 'ath9k_hw_set_txpowerlimit' by adding a new argument to 'ath9k_hw_apply_txpower.' Signed-off-by: Gabor Juhos Acked-by: Felix Fietkau Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/ar5008_phy.c b/drivers/net/wireless/ath/ath9k/ar5008_phy.c index d7d8e91..aba0880 100644 --- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c @@ -869,7 +869,7 @@ static int ar5008_hw_process_ini(struct ath_hw *ah, ar5008_hw_set_channel_regs(ah, chan); ar5008_hw_init_chain_masks(ah); ath9k_olc_init(ah); - ath9k_hw_apply_txpower(ah, chan); + ath9k_hw_apply_txpower(ah, chan, false); /* Write analog registers */ if (!ath9k_hw_set_rf_regs(ah, chan, freqIndex)) { diff --git a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c index 59647a3..3d400e8 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c @@ -54,7 +54,7 @@ void ar9003_paprd_enable(struct ath_hw *ah, bool val) if (val) { ah->paprd_table_write_done = true; - ath9k_hw_apply_txpower(ah, chan); + ath9k_hw_apply_txpower(ah, chan, false); } REG_RMW_FIELD(ah, AR_PHY_PAPRD_CTRL0_B0, diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c index bc992b2..deb6cfb 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c @@ -694,7 +694,7 @@ static int ar9003_hw_process_ini(struct ath_hw *ah, ar9003_hw_override_ini(ah); ar9003_hw_set_channel_regs(ah, chan); ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask); - ath9k_hw_apply_txpower(ah, chan); + ath9k_hw_apply_txpower(ah, chan, false); if (AR_SREV_9462(ah)) { if (REG_READ_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_0, diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 6c69e4e..fa84e37 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -1454,7 +1454,7 @@ static bool ath9k_hw_channel_change(struct ath_hw *ah, return false; } ath9k_hw_set_clockrate(ah); - ath9k_hw_apply_txpower(ah, chan); + ath9k_hw_apply_txpower(ah, chan, false); ath9k_hw_rfbus_done(ah); if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan)) @@ -2652,7 +2652,8 @@ static int get_antenna_gain(struct ath_hw *ah, struct ath9k_channel *chan) return ah->eep_ops->get_eeprom(ah, gain_param); } -void ath9k_hw_apply_txpower(struct ath_hw *ah, struct ath9k_channel *chan) +void ath9k_hw_apply_txpower(struct ath_hw *ah, struct ath9k_channel *chan, + bool test) { struct ath_regulatory *reg = ath9k_hw_regulatory(ah); struct ieee80211_channel *channel; @@ -2673,7 +2674,7 @@ void ath9k_hw_apply_txpower(struct ath_hw *ah, struct ath9k_channel *chan) ah->eep_ops->set_txpower(ah, chan, ath9k_regd_get_ctl(reg, chan), - ant_reduction, new_pwr, false); + ant_reduction, new_pwr, test); } void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit, bool test) @@ -2686,7 +2687,7 @@ void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit, bool test) if (test) channel->max_power = MAX_RATE_POWER / 2; - ath9k_hw_apply_txpower(ah, chan); + ath9k_hw_apply_txpower(ah, chan, test); if (test) channel->max_power = DIV_ROUND_UP(reg->max_power_level, 2); diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index aa1680a..e88f182 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -985,7 +985,8 @@ void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len); /* PHY */ void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled, u32 *coef_mantissa, u32 *coef_exponent); -void ath9k_hw_apply_txpower(struct ath_hw *ah, struct ath9k_channel *chan); +void ath9k_hw_apply_txpower(struct ath_hw *ah, struct ath9k_channel *chan, + bool test); /* * Code Specific to AR5008, AR9001 or AR9002, -- cgit v0.10.2 From 83722bd4aede80714f75bedc3cce9b6ea9baea7b Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Sun, 15 Apr 2012 20:38:06 +0200 Subject: ath9k: fix tx power settings for AR9287 The 'ath9k_hw_update_regulatory_maxpower' helper function has been introduced by commit a55f858852e4345d0a31af593c46738ca8614bff (ath9k_hw: Cleanup TX power calculation for AR9287). Updating of the max_power_level value has been moved into the helper function in that change, however the removed code from 'ath9k_hw_ar9287_set_txpower' has not been replaced with a call of the new helper function. Due to that missing call, retrieving tx power for 2x2 and 3x3 chainmask is not handled properly. During the calculation of the tx power for 2x2 and 3x3 chainmasks the values are reduced. Those reductions must be compensated during retrieving. Fix this by adding the missing call of the helper function. Signed-off-by: Gabor Juhos Acked-by: Sujith Manoharan Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/eeprom_9287.c b/drivers/net/wireless/ath/ath9k/eeprom_9287.c index f272236..b34e8b2 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom_9287.c +++ b/drivers/net/wireless/ath/ath9k/eeprom_9287.c @@ -824,6 +824,8 @@ static void ath9k_hw_ar9287_set_txpower(struct ath_hw *ah, regulatory->max_power_level = ratesArray[i]; } + ath9k_hw_update_regulatory_maxpower(ah); + if (test) return; -- cgit v0.10.2 From 8db4c7e25d153fb049e81715d72fa3be3a0c3b69 Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Wed, 18 Apr 2012 08:01:15 -0700 Subject: iwlwifi: do not nulify ctx->vif on reset ctx->vif is dereferenced in different part of iwlwifi code, so do not nullify it. This should address at least one of the possible reasons of WARNING at iwlagn_mac_remove_interface, and perhaps some random crashes when firmware reset is performed. Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Gruszka Signed-off-by: Wey-Yi Guy Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index f1226dbf..2a9a16f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -863,7 +863,6 @@ static void iwl_bg_run_time_calib_work(struct work_struct *work) void iwlagn_prepare_restart(struct iwl_priv *priv) { - struct iwl_rxon_context *ctx; bool bt_full_concurrent; u8 bt_ci_compliance; u8 bt_load; @@ -872,8 +871,6 @@ void iwlagn_prepare_restart(struct iwl_priv *priv) lockdep_assert_held(&priv->mutex); - for_each_context(priv, ctx) - ctx->vif = NULL; priv->is_open = 0; /* diff --git a/drivers/net/wireless/iwlwifi/iwl-mac80211.c b/drivers/net/wireless/iwlwifi/iwl-mac80211.c index b6805f8..c24a713 100644 --- a/drivers/net/wireless/iwlwifi/iwl-mac80211.c +++ b/drivers/net/wireless/iwlwifi/iwl-mac80211.c @@ -1244,6 +1244,7 @@ static int iwlagn_mac_add_interface(struct ieee80211_hw *hw, struct iwl_rxon_context *tmp, *ctx = NULL; int err; enum nl80211_iftype viftype = ieee80211_vif_type_p2p(vif); + bool reset = false; IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n", viftype, vif->addr); @@ -1265,6 +1266,13 @@ static int iwlagn_mac_add_interface(struct ieee80211_hw *hw, tmp->interface_modes | tmp->exclusive_interface_modes; if (tmp->vif) { + /* On reset we need to add the same interface again */ + if (tmp->vif == vif) { + reset = true; + ctx = tmp; + break; + } + /* check if this busy context is exclusive */ if (tmp->exclusive_interface_modes & BIT(tmp->vif->type)) { @@ -1291,7 +1299,7 @@ static int iwlagn_mac_add_interface(struct ieee80211_hw *hw, ctx->vif = vif; err = iwl_setup_interface(priv, ctx); - if (!err) + if (!err || reset) goto out; ctx->vif = NULL; -- cgit v0.10.2 From dd447319895d0c0af423e483d9b63f84f3f8869a Mon Sep 17 00:00:00 2001 From: Stanislav Yakovlev Date: Thu, 19 Apr 2012 15:55:09 -0400 Subject: ipw2200: Fix race condition in the command completion acknowledge Driver incorrectly validates command completion: instead of waiting for a command to be acknowledged it continues execution. Most of the time driver gets acknowledge of the command completion in a tasklet before it executes the next one. But sometimes it sends the next command before it gets acknowledge for the previous one. In such a case one of the following error messages appear in the log: Failed to send SYSTEM_CONFIG: Already sending a command. Failed to send ASSOCIATE: Already sending a command. Failed to send TX_POWER: Already sending a command. After that you need to reload the driver to get it working again. This bug occurs during roaming (reported by Sam Varshavchik) https://bugzilla.redhat.com/show_bug.cgi?id=738508 and machine booting (reported by Tom Gundersen and Mads Kiilerich) https://bugs.archlinux.org/task/28097 https://bugzilla.redhat.com/show_bug.cgi?id=802106 This patch doesn't fix the delay issue during firmware load. But at least device now works as usual after boot. Cc: stable@kernel.org Signed-off-by: Stanislav Yakovlev Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ipw2x00/ipw2200.c b/drivers/net/wireless/ipw2x00/ipw2200.c index 2b02257..1779db3 100644 --- a/drivers/net/wireless/ipw2x00/ipw2200.c +++ b/drivers/net/wireless/ipw2x00/ipw2200.c @@ -2191,6 +2191,7 @@ static int __ipw_send_cmd(struct ipw_priv *priv, struct host_cmd *cmd) { int rc = 0; unsigned long flags; + unsigned long now, end; spin_lock_irqsave(&priv->lock, flags); if (priv->status & STATUS_HCMD_ACTIVE) { @@ -2232,10 +2233,20 @@ static int __ipw_send_cmd(struct ipw_priv *priv, struct host_cmd *cmd) } spin_unlock_irqrestore(&priv->lock, flags); + now = jiffies; + end = now + HOST_COMPLETE_TIMEOUT; +again: rc = wait_event_interruptible_timeout(priv->wait_command_queue, !(priv-> status & STATUS_HCMD_ACTIVE), - HOST_COMPLETE_TIMEOUT); + end - now); + if (rc < 0) { + now = jiffies; + if (time_before(now, end)) + goto again; + rc = 0; + } + if (rc == 0) { spin_lock_irqsave(&priv->lock, flags); if (priv->status & STATUS_HCMD_ACTIVE) { -- cgit v0.10.2 From 44eb65cfd8da4b9c231238998729e858e963a980 Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Thu, 19 Apr 2012 21:39:06 -0500 Subject: rtlwifi: Fix oops on unload Under some circumstances, a PCI-based driver reports the following OOPs: Mar 19 08:14:35 kvothe kernel: [ 6584.626011] Oops: 0000 [#1] SMP --snip-- Mar 19 08:14:35 kvothe kernel: [ 6584.626011] Pid: 19627, comm: rmmod Not tainted 3.2.9-2.fc16.x86_64 #1 LENOVO 05962RU/05962RU Mar 19 08:14:35 kvothe kernel: [ 6584.626011] RIP: 0010:[] [] rtl92ce_get_desc+0x19/0xd0 [rtl8192ce] --snip-- Mar 19 08:14:35 kvothe kernel: [ 6584.626011] Process rmmod (pid: 19627, threadinfo ffff880050262000, task ffff8801156d5cc0) Mar 19 08:14:35 kvothe kernel: [ 6584.626011] Stack: Mar 19 08:14:35 kvothe kernel: [ 6584.626011] 0000000000000002 ffff8801176c2540 ffff880050263ca8 ffffffffa03348e7 Mar 19 08:14:35 kvothe kernel: [ 6584.626011] 0000000000000282 0000000180150014 ffff880050263fd8 ffff8801176c2810 Mar 19 08:14:35 kvothe kernel: [ 6584.626011] ffff880050263bc8 ffffffff810550e2 00000000000002c0 ffff8801176c0d40 Mar 19 08:14:35 kvothe kernel: [ 6584.626011] Call Trace: Mar 19 08:14:35 kvothe kernel: [ 6584.626011] [] _rtl_pci_rx_interrupt+0x187/0x650 [rtlwifi] --snip-- Mar 19 08:14:35 kvothe kernel: [ 6584.626011] Code: ff 09 d0 89 07 48 83 c4 08 5b 5d c3 66 0f 1f 44 00 00 55 48 89 e5 53 48 83 ec 08 66 66 66 66 90 40 84 f6 89 d3 74 13 84 d2 75 57 <8b> 07 48 83 c4 08 5b 5d c1 e8 1f c3 0f 1f 00 84 d2 74 ed 80 fa Mar 19 08:14:35 kvothe kernel: [ 6584.626011] RIP [] rtl92ce_get_desc+0x19/0xd0 [rtl8192ce] Mar 19 08:14:35 kvothe kernel: [ 6584.626011] RSP Mar 19 08:14:35 kvothe kernel: [ 6584.626011] CR2: 00000000000006e0 Mar 19 08:14:35 kvothe kernel: [ 6584.646491] ---[ end trace 8636c766dcfbe0e6 ]--- This oops is due to interrupts not being disabled in this particular path. Reported-by: Dave Airlie Tested-by: Dave Airlie Signed-off-by: Larry Finger Cc: Stable Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c index 288b035..cc15fdb 100644 --- a/drivers/net/wireless/rtlwifi/pci.c +++ b/drivers/net/wireless/rtlwifi/pci.c @@ -1941,6 +1941,7 @@ void rtl_pci_disconnect(struct pci_dev *pdev) rtl_deinit_deferred_work(hw); rtlpriv->intf_ops->adapter_stop(hw); } + rtlpriv->cfg->ops->disable_interrupt(hw); /*deinit rfkill */ rtl_deinit_rfkill(hw); -- cgit v0.10.2 From 6ead629b27269c553c9092c47cd8f5ab0309ee3b Mon Sep 17 00:00:00 2001 From: Eldad Zack Date: Sun, 22 Apr 2012 00:48:04 +0200 Subject: brcmsmac: "INTERMEDIATE but not AMPDU" only when tracing I keep getting the following messages on the log buffer: [ 2167.097507] ieee80211 phy0: brcms_c_dotxstatus: INTERMEDIATE but not AMPDU [ 2281.331305] ieee80211 phy0: brcms_c_dotxstatus: INTERMEDIATE but not AMPDU [ 2281.332539] ieee80211 phy0: brcms_c_dotxstatus: INTERMEDIATE but not AMPDU [ 2329.876605] ieee80211 phy0: brcms_c_dotxstatus: INTERMEDIATE but not AMPDU [ 2329.877354] ieee80211 phy0: brcms_c_dotxstatus: INTERMEDIATE but not AMPDU [ 2462.280756] ieee80211 phy0: brcms_c_dotxstatus: INTERMEDIATE but not AMPDU [ 2615.651689] ieee80211 phy0: brcms_c_dotxstatus: INTERMEDIATE but not AMPDU From the code comment I understand that this something that can - and does, quite frequently - happen. Signed-off-by: Eldad Zack Acked-by: Franky Lin Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/brcm80211/brcmsmac/main.c b/drivers/net/wireless/brcm80211/brcmsmac/main.c index 7083db7..b4d9279 100644 --- a/drivers/net/wireless/brcm80211/brcmsmac/main.c +++ b/drivers/net/wireless/brcm80211/brcmsmac/main.c @@ -847,8 +847,7 @@ brcms_c_dotxstatus(struct brcms_c_info *wlc, struct tx_status *txs) */ if (!(txs->status & TX_STATUS_AMPDU) && (txs->status & TX_STATUS_INTERMEDIATE)) { - wiphy_err(wlc->wiphy, "%s: INTERMEDIATE but not AMPDU\n", - __func__); + BCMMSG(wlc->wiphy, "INTERMEDIATE but not AMPDU\n"); return false; } -- cgit v0.10.2 From de050acaa1fdba4852cb195baf2bfed75368e0be Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 17 Apr 2012 20:28:10 +0100 Subject: ASoC: wm_hubs: Make sure we don't disable differential line outputs While we need to clean up unused single ended line outputs we don't want to do this if the outputs are in differential mode. Signed-off-by: Mark Brown diff --git a/sound/soc/codecs/wm_hubs.c b/sound/soc/codecs/wm_hubs.c index f13f288..6c028c4 100644 --- a/sound/soc/codecs/wm_hubs.c +++ b/sound/soc/codecs/wm_hubs.c @@ -1035,7 +1035,7 @@ void wm_hubs_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { struct wm_hubs_data *hubs = snd_soc_codec_get_drvdata(codec); - int val; + int mask, val; switch (level) { case SND_SOC_BIAS_STANDBY: @@ -1047,6 +1047,13 @@ void wm_hubs_set_bias_level(struct snd_soc_codec *codec, case SND_SOC_BIAS_ON: /* Turn off any unneded single ended outputs */ val = 0; + mask = 0; + + if (hubs->lineout1_se) + mask |= WM8993_LINEOUT1N_ENA | WM8993_LINEOUT1P_ENA; + + if (hubs->lineout2_se) + mask |= WM8993_LINEOUT2N_ENA | WM8993_LINEOUT2P_ENA; if (hubs->lineout1_se && hubs->lineout1n_ena) val |= WM8993_LINEOUT1N_ENA; @@ -1061,11 +1068,7 @@ void wm_hubs_set_bias_level(struct snd_soc_codec *codec, val |= WM8993_LINEOUT2P_ENA; snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_3, - WM8993_LINEOUT1N_ENA | - WM8993_LINEOUT1P_ENA | - WM8993_LINEOUT2N_ENA | - WM8993_LINEOUT2P_ENA, - val); + mask, val); /* Remove the input clamps */ snd_soc_update_bits(codec, WM8993_INPUTS_CLAMP_REG, -- cgit v0.10.2 From 2a14e541ed87bca0c125b82961ca3c6f808607d2 Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Sun, 22 Apr 2012 23:03:17 -0400 Subject: ACPI: Convert wake_sleep_flags to a value instead of function With commit a2ef5c4fd44ce3922435139393b89f2cce47f576 "ACPI: Move module parameter gts and bfs to sleep.c" the wake_sleep_flags is required when calling acpi_enter_sleep_state, which means that if there are functions outside the sleep.c code they can't get the wake_sleep_flags values. This converts the function in to a exported value and converts the module config operands to a function. Acked-by: Rafael J. Wysocki Acked-by: Lin Ming [v2: Parameters can be turned on/off dynamically] [v3: unsigned char -> u8] [v4: val -> kp->arg] Signed-off-by: Konrad Rzeszutek Wilk Link: http://lkml.kernel.org/r/1335150198-21899-2-git-send-email-konrad.wilk@oracle.com Signed-off-by: H. Peter Anvin diff --git a/arch/x86/kernel/acpi/sleep.h b/arch/x86/kernel/acpi/sleep.h index 416d4be..fe5fdda 100644 --- a/arch/x86/kernel/acpi/sleep.h +++ b/arch/x86/kernel/acpi/sleep.h @@ -9,6 +9,8 @@ extern long saved_magic; extern int wakeup_pmode_return; +extern u8 wake_sleep_flags; + extern unsigned long acpi_copy_wakeup_routine(unsigned long); extern void wakeup_long64(void); diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 1d661b5..eb6fd23 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -28,23 +28,33 @@ #include "internal.h" #include "sleep.h" +u8 wake_sleep_flags = ACPI_NO_OPTIONAL_METHODS; static unsigned int gts, bfs; -module_param(gts, uint, 0644); -module_param(bfs, uint, 0644); -MODULE_PARM_DESC(gts, "Enable evaluation of _GTS on suspend."); -MODULE_PARM_DESC(bfs, "Enable evaluation of _BFS on resume".); - -static u8 wake_sleep_flags(void) +static int set_param_wake_flag(const char *val, struct kernel_param *kp) { - u8 flags = ACPI_NO_OPTIONAL_METHODS; + int ret = param_set_int(val, kp); - if (gts) - flags |= ACPI_EXECUTE_GTS; - if (bfs) - flags |= ACPI_EXECUTE_BFS; + if (ret) + return ret; - return flags; + if (kp->arg == (const char *)>s) { + if (gts) + wake_sleep_flags |= ACPI_EXECUTE_GTS; + else + wake_sleep_flags &= ~ACPI_EXECUTE_GTS; + } + if (kp->arg == (const char *)&bfs) { + if (bfs) + wake_sleep_flags |= ACPI_EXECUTE_BFS; + else + wake_sleep_flags &= ~ACPI_EXECUTE_BFS; + } + return ret; } +module_param_call(gts, set_param_wake_flag, param_get_int, >s, 0644); +module_param_call(bfs, set_param_wake_flag, param_get_int, &bfs, 0644); +MODULE_PARM_DESC(gts, "Enable evaluation of _GTS on suspend."); +MODULE_PARM_DESC(bfs, "Enable evaluation of _BFS on resume".); static u8 sleep_states[ACPI_S_STATE_COUNT]; @@ -263,7 +273,6 @@ static int acpi_suspend_enter(suspend_state_t pm_state) { acpi_status status = AE_OK; u32 acpi_state = acpi_target_sleep_state; - u8 flags = wake_sleep_flags(); int error; ACPI_FLUSH_CPU_CACHE(); @@ -271,7 +280,7 @@ static int acpi_suspend_enter(suspend_state_t pm_state) switch (acpi_state) { case ACPI_STATE_S1: barrier(); - status = acpi_enter_sleep_state(acpi_state, flags); + status = acpi_enter_sleep_state(acpi_state, wake_sleep_flags); break; case ACPI_STATE_S3: @@ -286,7 +295,7 @@ static int acpi_suspend_enter(suspend_state_t pm_state) acpi_write_bit_register(ACPI_BITREG_SCI_ENABLE, 1); /* Reprogram control registers and execute _BFS */ - acpi_leave_sleep_state_prep(acpi_state, flags); + acpi_leave_sleep_state_prep(acpi_state, wake_sleep_flags); /* ACPI 3.0 specs (P62) says that it's the responsibility * of the OSPM to clear the status bit [ implying that the @@ -550,30 +559,27 @@ static int acpi_hibernation_begin(void) static int acpi_hibernation_enter(void) { - u8 flags = wake_sleep_flags(); acpi_status status = AE_OK; ACPI_FLUSH_CPU_CACHE(); /* This shouldn't return. If it returns, we have a problem */ - status = acpi_enter_sleep_state(ACPI_STATE_S4, flags); + status = acpi_enter_sleep_state(ACPI_STATE_S4, wake_sleep_flags); /* Reprogram control registers and execute _BFS */ - acpi_leave_sleep_state_prep(ACPI_STATE_S4, flags); + acpi_leave_sleep_state_prep(ACPI_STATE_S4, wake_sleep_flags); return ACPI_SUCCESS(status) ? 0 : -EFAULT; } static void acpi_hibernation_leave(void) { - u8 flags = wake_sleep_flags(); - /* * If ACPI is not enabled by the BIOS and the boot kernel, we need to * enable it here. */ acpi_enable(); /* Reprogram control registers and execute _BFS */ - acpi_leave_sleep_state_prep(ACPI_STATE_S4, flags); + acpi_leave_sleep_state_prep(ACPI_STATE_S4, wake_sleep_flags); /* Check the hardware signature */ if (facs && s4_hardware_signature != facs->hardware_signature) { printk(KERN_EMERG "ACPI: Hardware changed while hibernated, " @@ -828,12 +834,10 @@ static void acpi_power_off_prepare(void) static void acpi_power_off(void) { - u8 flags = wake_sleep_flags(); - /* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */ printk(KERN_DEBUG "%s called\n", __func__); local_irq_disable(); - acpi_enter_sleep_state(ACPI_STATE_S5, flags); + acpi_enter_sleep_state(ACPI_STATE_S5, wake_sleep_flags); } /* -- cgit v0.10.2 From cd74257b974d6d26442c97891c4d05772748b177 Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Sun, 22 Apr 2012 23:03:18 -0400 Subject: x86, acpi: Call acpi_enter_sleep_state via an asmlinkage C function from assembler With commit a2ef5c4fd44ce3922435139393b89f2cce47f576 "ACPI: Move module parameter gts and bfs to sleep.c" the wake_sleep_flags is required when calling acpi_enter_sleep_state. The assembler code in wakeup_*.S did not do that. One solution is to call it from assembler and stick the wake_sleep_flags on the stack (for 32-bit) or in %esi (for 64-bit). hpa and rafael both suggested however to create a wrapper function to call acpi_enter_sleep_state and call said wrapper function ("acpi_enter_s3") from assembler. For 32-bit, the acpi_enter_s3 ends up looking as so: push %ebp mov %esp,%ebp sub $0x8,%esp movzbl 0xc1809314,%eax [wake_sleep_flags] movl $0x3,(%esp) mov %eax,0x4(%esp) call 0xc12d1fa0 leave ret And 64-bit: movzbl 0x9afde1(%rip),%esi [wake_sleep_flags] push %rbp mov $0x3,%edi mov %rsp,%rbp callq 0xffffffff812e9800 leaveq retq Reviewed-by: H. Peter Anvin Suggested-by: H. Peter Anvin [v2: Remove extra assembler operations, per hpa review] Signed-off-by: Konrad Rzeszutek Wilk Link: http://lkml.kernel.org/r/1335150198-21899-3-git-send-email-konrad.wilk@oracle.com Signed-off-by: H. Peter Anvin diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c index 103b6ab..146a49c 100644 --- a/arch/x86/kernel/acpi/sleep.c +++ b/arch/x86/kernel/acpi/sleep.c @@ -24,6 +24,10 @@ unsigned long acpi_realmode_flags; static char temp_stack[4096]; #endif +asmlinkage void acpi_enter_s3(void) +{ + acpi_enter_sleep_state(3, wake_sleep_flags); +} /** * acpi_suspend_lowlevel - save kernel state * diff --git a/arch/x86/kernel/acpi/sleep.h b/arch/x86/kernel/acpi/sleep.h index fe5fdda..d68677a 100644 --- a/arch/x86/kernel/acpi/sleep.h +++ b/arch/x86/kernel/acpi/sleep.h @@ -3,6 +3,7 @@ */ #include +#include extern unsigned long saved_video_mode; extern long saved_magic; @@ -10,6 +11,7 @@ extern long saved_magic; extern int wakeup_pmode_return; extern u8 wake_sleep_flags; +extern asmlinkage void acpi_enter_s3(void); extern unsigned long acpi_copy_wakeup_routine(unsigned long); extern void wakeup_long64(void); diff --git a/arch/x86/kernel/acpi/wakeup_32.S b/arch/x86/kernel/acpi/wakeup_32.S index 13ab720..7261083 100644 --- a/arch/x86/kernel/acpi/wakeup_32.S +++ b/arch/x86/kernel/acpi/wakeup_32.S @@ -74,9 +74,7 @@ restore_registers: ENTRY(do_suspend_lowlevel) call save_processor_state call save_registers - pushl $3 - call acpi_enter_sleep_state - addl $4, %esp + call acpi_enter_s3 # In case of S3 failure, we'll emerge here. Jump # to ret_point to recover diff --git a/arch/x86/kernel/acpi/wakeup_64.S b/arch/x86/kernel/acpi/wakeup_64.S index 8ea5164..014d1d2 100644 --- a/arch/x86/kernel/acpi/wakeup_64.S +++ b/arch/x86/kernel/acpi/wakeup_64.S @@ -71,9 +71,7 @@ ENTRY(do_suspend_lowlevel) movq %rsi, saved_rsi addq $8, %rsp - movl $3, %edi - xorl %eax, %eax - call acpi_enter_sleep_state + call acpi_enter_s3 /* in case something went wrong, restore the machine status and go on */ jmp resume_point -- cgit v0.10.2 From ed8cd3b2cd61004cab85380c52b1817aca1ca49b Mon Sep 17 00:00:00 2001 From: Xi Wang Date: Mon, 23 Apr 2012 04:06:41 -0400 Subject: drm/i915: fix integer overflow in i915_gem_execbuffer2() On 32-bit systems, a large args->buffer_count from userspace via ioctl may overflow the allocation size, leading to out-of-bounds access. This vulnerability was introduced in commit 8408c282 ("drm/i915: First try a normal large kmalloc for the temporary exec buffers"). Signed-off-by: Xi Wang Reviewed-by: Chris Wilson Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index f51a696..7c50e58 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -1404,7 +1404,8 @@ i915_gem_execbuffer2(struct drm_device *dev, void *data, struct drm_i915_gem_exec_object2 *exec2_list = NULL; int ret; - if (args->buffer_count < 1) { + if (args->buffer_count < 1 || + args->buffer_count > UINT_MAX / sizeof(*exec2_list)) { DRM_DEBUG("execbuf2 with %d buffers\n", args->buffer_count); return -EINVAL; } -- cgit v0.10.2 From 44afb3a04391a74309d16180d1e4f8386fdfa745 Mon Sep 17 00:00:00 2001 From: Xi Wang Date: Mon, 23 Apr 2012 04:06:42 -0400 Subject: drm/i915: fix integer overflow in i915_gem_do_execbuffer() On 32-bit systems, a large args->num_cliprects from userspace via ioctl may overflow the allocation size, leading to out-of-bounds access. This vulnerability was introduced in commit 432e58ed ("drm/i915: Avoid allocation for execbuffer object list"). Signed-off-by: Xi Wang Reviewed-by: Chris Wilson Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index 7c50e58..de43194 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -1133,6 +1133,11 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data, return -EINVAL; } + if (args->num_cliprects > UINT_MAX / sizeof(*cliprects)) { + DRM_DEBUG("execbuf with %u cliprects\n", + args->num_cliprects); + return -EINVAL; + } cliprects = kmalloc(args->num_cliprects * sizeof(*cliprects), GFP_KERNEL); if (cliprects == NULL) { -- cgit v0.10.2 From 98e5272fe70d62e193f70acf9951667beab27aba Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Mon, 23 Apr 2012 14:51:14 -0700 Subject: x32: Check __ILP32__ instead of __LP64__ for x32 Check __LP64__ isn't a reliable way to tell if we are compiling for x32 since __LP64__ isnn't specified by x86-64 psABI. Not all x86-64 compilers define __LP64__, which was added to GCC 3.3. The updated x32 psABI: https://sites.google.com/site/x32abi/documents definse _ILP32 and __ILP32__ for x32. GCC trunk and 4.7 branch have been updated to define _ILP32 and __ILP32__ for x32. This patch replaces __LP64__ check with __ILP32__. Signed-off-by: H.J. Lu Signed-off-by: H. Peter Anvin diff --git a/arch/x86/include/asm/posix_types.h b/arch/x86/include/asm/posix_types.h index 3427b77..7ef7c30 100644 --- a/arch/x86/include/asm/posix_types.h +++ b/arch/x86/include/asm/posix_types.h @@ -7,9 +7,9 @@ #else # ifdef __i386__ # include "posix_types_32.h" -# elif defined(__LP64__) -# include "posix_types_64.h" -# else +# elif defined(__ILP32__) # include "posix_types_x32.h" +# else +# include "posix_types_64.h" # endif #endif diff --git a/arch/x86/include/asm/sigcontext.h b/arch/x86/include/asm/sigcontext.h index 4a08538..5ca71c0 100644 --- a/arch/x86/include/asm/sigcontext.h +++ b/arch/x86/include/asm/sigcontext.h @@ -257,7 +257,7 @@ struct sigcontext { __u64 oldmask; __u64 cr2; struct _fpstate __user *fpstate; /* zero when no FPU context */ -#ifndef __LP64__ +#ifdef __ILP32__ __u32 __fpstate_pad; #endif __u64 reserved1[8]; diff --git a/arch/x86/include/asm/unistd.h b/arch/x86/include/asm/unistd.h index 37cdc9d..4437001 100644 --- a/arch/x86/include/asm/unistd.h +++ b/arch/x86/include/asm/unistd.h @@ -63,10 +63,10 @@ #else # ifdef __i386__ # include -# elif defined(__LP64__) -# include -# else +# elif defined(__ILP32__) # include +# else +# include # endif #endif -- cgit v0.10.2 From 2b7b9a7d6c676691cd746a654e2c3b06a6feb9ba Mon Sep 17 00:00:00 2001 From: David Brown Date: Mon, 23 Apr 2012 15:34:20 -0700 Subject: ARM: msm: Fix gic irqdomain support As of commit 75294957be1dee7d22dd7d90bd31334ba410e836 Author: Grant Likely Date: Tue Feb 14 14:06:57 2012 -0700 irq_domain: Remove 'new' irq_domain in favour of the ppc one the ARM gic controller uses proper irq domains. Fix the MSM gic initialization and DT so that it works again. Signed-off-by: David Brown Acked-by: Grant Likely diff --git a/arch/arm/boot/dts/msm8660-surf.dts b/arch/arm/boot/dts/msm8660-surf.dts index 15ded0d..45bc4bb 100644 --- a/arch/arm/boot/dts/msm8660-surf.dts +++ b/arch/arm/boot/dts/msm8660-surf.dts @@ -10,7 +10,7 @@ intc: interrupt-controller@02080000 { compatible = "qcom,msm-8660-qgic"; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <3>; reg = < 0x02080000 0x1000 >, < 0x02081000 0x1000 >; }; @@ -19,6 +19,6 @@ compatible = "qcom,msm-hsuart", "qcom,msm-uart"; reg = <0x19c40000 0x1000>, <0x19c00000 0x1000>; - interrupts = <195>; + interrupts = <0 195 0x0>; }; }; diff --git a/arch/arm/mach-msm/board-msm8x60.c b/arch/arm/mach-msm/board-msm8x60.c index 962e711..fb3496a 100644 --- a/arch/arm/mach-msm/board-msm8x60.c +++ b/arch/arm/mach-msm/board-msm8x60.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include @@ -49,10 +50,22 @@ static void __init msm8x60_map_io(void) msm_map_msm8x60_io(); } +#ifdef CONFIG_OF +static struct of_device_id msm_dt_gic_match[] __initdata = { + { .compatible = "qcom,msm-8660-qgic", .data = gic_of_init }, + {} +}; +#endif + static void __init msm8x60_init_irq(void) { - gic_init(0, GIC_PPI_START, MSM_QGIC_DIST_BASE, - (void *)MSM_QGIC_CPU_BASE); + if (!of_have_populated_dt()) + gic_init(0, GIC_PPI_START, MSM_QGIC_DIST_BASE, + (void *)MSM_QGIC_CPU_BASE); +#ifdef CONFIG_OF + else + of_irq_init(msm_dt_gic_match); +#endif /* Edge trigger PPIs except AVS_SVICINT and AVS_SVICINTSWDONE */ writel(0xFFFFD7FF, MSM_QGIC_DIST_BASE + GIC_DIST_CONFIG + 4); @@ -73,16 +86,8 @@ static struct of_dev_auxdata msm_auxdata_lookup[] __initdata = { {} }; -static struct of_device_id msm_dt_gic_match[] __initdata = { - { .compatible = "qcom,msm-8660-qgic", }, - {} -}; - static void __init msm8x60_dt_init(void) { - irq_domain_generate_simple(msm_dt_gic_match, MSM8X60_QGIC_DIST_PHYS, - GIC_SPI_START); - if (of_machine_is_compatible("qcom,msm8660-surf")) { printk(KERN_INFO "Init surf UART registers\n"); msm8x60_init_uart12dm(); -- cgit v0.10.2 From d643bdca8ab9cd333da1b68267d0e47328e56f56 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Mon, 23 Apr 2012 16:29:18 -0700 Subject: asm-generic: Allow overriding clock_t and add attributes to siginfo_t For the particular issue of x32, which shares code with i386 in the handling of compat_siginfo_t, the use of a 64-bit clock_t bumps the sigchld structure out of alignment, which triggers a messy cascade of padding. This was already handled on the kernel compat side, but it needs handling on the user space side, which uses the generic header. To make that possible: 1. Allow __kernel_clock_t to be overridden in struct siginfo; 2. Allow there to be attributes added to struct siginfo. Reported-by: H.J. Lu Cc: Bruce J. Beare Cc: Arnd Bergmann Link: http://lkml.kernel.org/r/CAMe9rOqF6Kh6-NK7oP0Fpzkd4SBAWU%2BG53hwBbSD4iA2UzyxuA@mail.gmail.com Signed-off-by: H. Peter Anvin diff --git a/include/asm-generic/siginfo.h b/include/asm-generic/siginfo.h index 0dd4e87..5e5e386 100644 --- a/include/asm-generic/siginfo.h +++ b/include/asm-generic/siginfo.h @@ -35,6 +35,14 @@ typedef union sigval { #define __ARCH_SI_BAND_T long #endif +#ifndef __ARCH_SI_CLOCK_T +#define __ARCH_SI_CLOCK_T __kernel_clock_t +#endif + +#ifndef __ARCH_SI_ATTRIBUTES +#define __ARCH_SI_ATTRIBUTES +#endif + #ifndef HAVE_ARCH_SIGINFO_T typedef struct siginfo { @@ -72,8 +80,8 @@ typedef struct siginfo { __kernel_pid_t _pid; /* which child */ __ARCH_SI_UID_T _uid; /* sender's uid */ int _status; /* exit code */ - __kernel_clock_t _utime; - __kernel_clock_t _stime; + __ARCH_SI_CLOCK_T _utime; + __ARCH_SI_CLOCK_T _stime; } _sigchld; /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ @@ -91,7 +99,7 @@ typedef struct siginfo { int _fd; } _sigpoll; } _sifields; -} siginfo_t; +} __ARCH_SI_ATTRIBUTES siginfo_t; #endif -- cgit v0.10.2 From a9ad8526bb1af0741a5c0e01155dac08e7bdde60 Mon Sep 17 00:00:00 2001 From: Jonathan Brassow Date: Tue, 24 Apr 2012 10:23:13 +1000 Subject: DM RAID: Use safe version of rdev_for_each Fix segfault caused by using rdev_for_each instead of rdev_for_each_safe Commit dafb20fa34320a472deb7442f25a0c086e0feb33 mistakenly replaced a safe iterator with an unsafe one when making some macro changes. Signed-off-by: Jonathan Brassow Signed-off-by: NeilBrown diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index b0ba524..68965e6 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -859,7 +859,7 @@ static int analyse_superblocks(struct dm_target *ti, struct raid_set *rs) int ret; unsigned redundancy = 0; struct raid_dev *dev; - struct md_rdev *rdev, *freshest; + struct md_rdev *rdev, *tmp, *freshest; struct mddev *mddev = &rs->md; switch (rs->raid_type->level) { @@ -877,7 +877,7 @@ static int analyse_superblocks(struct dm_target *ti, struct raid_set *rs) } freshest = NULL; - rdev_for_each(rdev, mddev) { + rdev_for_each_safe(rdev, tmp, mddev) { if (!rdev->meta_bdev) continue; -- cgit v0.10.2 From ed209584c38fb74b7eecc03e5b1bfe674e591bd8 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 24 Apr 2012 10:23:14 +1000 Subject: md: don't call ->add_disk unless there is good reason. Commit 7bfec5f35c68121e7b18 md/raid5: If there is a spare and a want_replacement device, start replacement. cause md_check_recovery to call ->add_disk much more often. Instead of only when the array is degraded, it is now called whenever md_check_recovery finds anything useful to do, which includes updating the metadata for clean<->dirty transition. This causes unnecessary work, and causes info messages from ->add_disk to be reported much too often. So refine md_check_recovery to only do any actual recovery checking (including ->add_disk) if MD_RECOVERY_NEEDED is set. This fix is suitable for 3.3.y: Cc: stable@vger.kernel.org Reported-by: Jan Ceuleers Signed-off-by: NeilBrown diff --git a/drivers/md/md.c b/drivers/md/md.c index b572e1e..8beb19c 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -7560,14 +7560,14 @@ void md_check_recovery(struct mddev *mddev) * any transients in the value of "sync_action". */ set_bit(MD_RECOVERY_RUNNING, &mddev->recovery); - clear_bit(MD_RECOVERY_NEEDED, &mddev->recovery); /* Clear some bits that don't mean anything, but * might be left set */ clear_bit(MD_RECOVERY_INTR, &mddev->recovery); clear_bit(MD_RECOVERY_DONE, &mddev->recovery); - if (test_bit(MD_RECOVERY_FROZEN, &mddev->recovery)) + if (!test_and_clear_bit(MD_RECOVERY_NEEDED, &mddev->recovery) || + test_bit(MD_RECOVERY_FROZEN, &mddev->recovery)) goto unlock; /* no recovery is running. * remove any failed drives, then -- cgit v0.10.2 From 30b8aa9172dfeaac6d77897c67ee9f9fc574cdbb Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 24 Apr 2012 10:23:16 +1000 Subject: md: fix possible corruption of array metadata on shutdown. commit c744a65c1e2d59acc54333ce8 md: don't set md arrays to readonly on shutdown. removed the possibility of a 'BUG' when data is written to an array that has just been switched to read-only, but also introduced the possibility that the array metadata could be corrupted. If, when md_notify_reboot gets the mddev lock, the array is in a state where it is assembled but hasn't been started (as can happen if the personality module is not available, or in other unusual situations), then incorrect metadata will be written out making it impossible to re-assemble the array. So only call __md_stop_writes() if the array has actually been activated. This patch is needed for any stable kernel which has had the above commit applied. Cc: stable@vger.kernel.org Reported-by: Christoph Nelles Signed-off-by: NeilBrown diff --git a/drivers/md/md.c b/drivers/md/md.c index 8beb19c..477eb2e 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -8140,7 +8140,8 @@ static int md_notify_reboot(struct notifier_block *this, for_each_mddev(mddev, tmp) { if (mddev_trylock(mddev)) { - __md_stop_writes(mddev); + if (mddev->pers) + __md_stop_writes(mddev); mddev->safemode = 2; mddev_unlock(mddev); } -- cgit v0.10.2 From 89b8835ec865dddd6673a8dd7003581bf2377176 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Mon, 23 Apr 2012 16:34:12 -0700 Subject: x32, siginfo: Provide proper overrides for x32 siginfo_t Provide the proper override macros for x32 siginfo_t. The combination of a special type here and an overall alignment constraint actually ends up with all the types being properly aligned, but the hack is needed to keep the substructures inside siginfo_t from adding padding. Note: use __attribute__((aligned())) since __aligned() is not exported to user space. [ v2: fix stray semicolon ] Reported-by: H.J. Lu Cc: Bruce J. Beare Cc: Arnd Bergmann Link: http://lkml.kernel.org/r/CAMe9rOqF6Kh6-NK7oP0Fpzkd4SBAWU%2BG53hwBbSD4iA2UzyxuA@mail.gmail.com Signed-off-by: H. Peter Anvin diff --git a/arch/x86/include/asm/siginfo.h b/arch/x86/include/asm/siginfo.h index fc1aa55..34c47b3 100644 --- a/arch/x86/include/asm/siginfo.h +++ b/arch/x86/include/asm/siginfo.h @@ -2,7 +2,13 @@ #define _ASM_X86_SIGINFO_H #ifdef __x86_64__ -# define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int)) +# ifdef __ILP32__ /* x32 */ +typedef long long __kernel_si_clock_t __attribute__((aligned(4))); +# define __ARCH_SI_CLOCK_T __kernel_si_clock_t +# define __ARCH_SI_ATTRIBUTES __attribute__((aligned(8))) +# else /* x86-64 */ +# define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int)) +# endif #endif #include -- cgit v0.10.2 From aca50bd3b4c4bb5528a1878158ba7abce41de534 Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Mon, 23 Apr 2012 11:14:50 -0700 Subject: mm: fix s390 BUG by __set_page_dirty_no_writeback on swap Mel reports a BUG_ON(slot == NULL) in radix_tree_tag_set() on s390 3.0.13: called from __set_page_dirty_nobuffers() when page_remove_rmap() tries to transfer dirty flag from s390 storage key to struct page and radix_tree. That would be because of reclaim's shrink_page_list() calling add_to_swap() on this page at the same time: first PageSwapCache is set (causing page_mapping(page) to appear as &swapper_space), then page->private set, then tree_lock taken, then page inserted into radix_tree - so there's an interval before taking the lock when the radix_tree slot is empty. We could fix this by moving __add_to_swap_cache()'s spin_lock_irq up before the SetPageSwapCache. But a better fix is simply to do what's five years overdue: Ken Chen introduced __set_page_dirty_no_writeback() (if !PageDirty TestSetPageDirty) for tmpfs to skip all the radix_tree overhead, and swap is just the same - it ignores the radix_tree tag, and does not participate in dirty page accounting, so should be using __set_page_dirty_no_writeback() too. s390 testing now confirms that this does indeed fix the problem. Reported-by: Mel Gorman Signed-off-by: Hugh Dickins Acked-by: Mel Gorman Cc: Andrew Morton Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: Rik van Riel Cc: Ken Chen Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds diff --git a/mm/swap_state.c b/mm/swap_state.c index 9d3dd37..4c5ff7f 100644 --- a/mm/swap_state.c +++ b/mm/swap_state.c @@ -26,7 +26,7 @@ */ static const struct address_space_operations swap_aops = { .writepage = swap_writepage, - .set_page_dirty = __set_page_dirty_nobuffers, + .set_page_dirty = __set_page_dirty_no_writeback, .migratepage = migrate_page, }; -- cgit v0.10.2 From 99aa78466777083255b876293e9e83dec7cd809a Mon Sep 17 00:00:00 2001 From: Shaohua Li Date: Fri, 13 Apr 2012 10:27:35 +0800 Subject: jbd2: use GFP_NOFS for blkdev_issue_flush flush request is issued in transaction commit code path, so looks using GFP_KERNEL to allocate memory for flush request bio falls into the classic deadlock issue. I saw btrfs and dm get it right, but ext4, xfs and md are using GFP. Signed-off-by: Shaohua Li Signed-off-by: Theodore Ts'o Reviewed-by: Jan Kara Cc: stable@vger.kernel.org diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c index 806525a..840f70f 100644 --- a/fs/jbd2/commit.c +++ b/fs/jbd2/commit.c @@ -723,7 +723,7 @@ start_journal_io: if (commit_transaction->t_need_data_flush && (journal->j_fs_dev != journal->j_dev) && (journal->j_flags & JBD2_BARRIER)) - blkdev_issue_flush(journal->j_fs_dev, GFP_KERNEL, NULL); + blkdev_issue_flush(journal->j_fs_dev, GFP_NOFS, NULL); /* Done it all: now write the commit record asynchronously. */ if (JBD2_HAS_INCOMPAT_FEATURE(journal, @@ -859,7 +859,7 @@ wait_for_iobuf: if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT) && journal->j_flags & JBD2_BARRIER) { - blkdev_issue_flush(journal->j_dev, GFP_KERNEL, NULL); + blkdev_issue_flush(journal->j_dev, GFP_NOFS, NULL); } if (err) -- cgit v0.10.2 From db7e5c668e1b16061fe2d94d3cba022dd360c5d4 Mon Sep 17 00:00:00 2001 From: Eldad Zack Date: Sun, 22 Apr 2012 17:50:52 +0200 Subject: super.c: unused variable warning without CONFIG_QUOTA MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit sb info is only checked with quota support. fs/ext4/super.c: In function ‘parse_options’: fs/ext4/super.c:1600:23: warning: unused variable ‘sbi’ [-Wunused-variable] Signed-off-by: Eldad Zack Signed-off-by: Theodore Ts'o diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 6da1935..e1fb1d5 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1597,7 +1597,9 @@ static int parse_options(char *options, struct super_block *sb, unsigned int *journal_ioprio, int is_remount) { +#ifdef CONFIG_QUOTA struct ext4_sb_info *sbi = EXT4_SB(sb); +#endif char *p; substring_t args[MAX_OPT_ARGS]; int token; -- cgit v0.10.2 From a881e963c7fe1f226e991ee9bbe8907acda93294 Mon Sep 17 00:00:00 2001 From: "Peter Huang (Peng)" Date: Thu, 19 Apr 2012 20:12:51 +0000 Subject: set fake_rtable's dst to NULL to avoid kernel Oops bridge: set fake_rtable's dst to NULL to avoid kernel Oops when bridge is deleted before tap/vif device's delete, kernel may encounter an oops because of NULL reference to fake_rtable's dst. Set fake_rtable's dst to NULL before sending packets out can solve this problem. v4 reformat, change br_drop_fake_rtable(skb) to {} v3 enrich commit header v2 introducing new flag DST_FAKE_RTABLE to dst_entry struct. [ Use "do { } while (0)" for nop br_drop_fake_rtable() implementation -DaveM ] Acked-by: Eric Dumazet Signed-off-by: Peter Huang Signed-off-by: David S. Miller diff --git a/include/linux/netfilter_bridge.h b/include/linux/netfilter_bridge.h index 0ddd161..31d2844 100644 --- a/include/linux/netfilter_bridge.h +++ b/include/linux/netfilter_bridge.h @@ -104,9 +104,18 @@ struct bridge_skb_cb { } daddr; }; +static inline void br_drop_fake_rtable(struct sk_buff *skb) +{ + struct dst_entry *dst = skb_dst(skb); + + if (dst && (dst->flags & DST_FAKE_RTABLE)) + skb_dst_drop(skb); +} + #else #define nf_bridge_maybe_copy_header(skb) (0) #define nf_bridge_pad(skb) (0) +#define br_drop_fake_rtable(skb) do { } while (0) #endif /* CONFIG_BRIDGE_NETFILTER */ #endif /* __KERNEL__ */ diff --git a/include/net/dst.h b/include/net/dst.h index ff4da42..bed833d 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -59,6 +59,7 @@ struct dst_entry { #define DST_NOCACHE 0x0010 #define DST_NOCOUNT 0x0020 #define DST_NOPEER 0x0040 +#define DST_FAKE_RTABLE 0x0080 short error; short obsolete; diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c index 61f6534..a2098e3 100644 --- a/net/bridge/br_forward.c +++ b/net/bridge/br_forward.c @@ -47,6 +47,7 @@ int br_dev_queue_push_xmit(struct sk_buff *skb) kfree_skb(skb); } else { skb_push(skb, ETH_HLEN); + br_drop_fake_rtable(skb); dev_queue_xmit(skb); } diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c index dec4f38..d7f49b6 100644 --- a/net/bridge/br_netfilter.c +++ b/net/bridge/br_netfilter.c @@ -156,7 +156,7 @@ void br_netfilter_rtable_init(struct net_bridge *br) rt->dst.dev = br->dev; rt->dst.path = &rt->dst; dst_init_metrics(&rt->dst, br_dst_default_metrics, true); - rt->dst.flags = DST_NOXFRM | DST_NOPEER; + rt->dst.flags = DST_NOXFRM | DST_NOPEER | DST_FAKE_RTABLE; rt->dst.ops = &fake_dst_ops; } @@ -694,11 +694,7 @@ static unsigned int br_nf_local_in(unsigned int hook, struct sk_buff *skb, const struct net_device *out, int (*okfn)(struct sk_buff *)) { - struct rtable *rt = skb_rtable(skb); - - if (rt && rt == bridge_parent_rtable(in)) - skb_dst_drop(skb); - + br_drop_fake_rtable(skb); return NF_ACCEPT; } -- cgit v0.10.2 From 9bbf56609d304e8aae2076610d938206453035de Mon Sep 17 00:00:00 2001 From: Stephane Fillod Date: Fri, 20 Apr 2012 09:39:23 +0000 Subject: net: usb: smsc95xx: fix mtu Make smsc95xx recalculate the hard_mtu after adjusting the hard_header_len. Without this, usbnet adjusts the MTU down to 1488 bytes, and the host is unable to receive standard 1500-byte frames from the device. Inspired by same fix on cdc_eem 78fb72f7936c01d5b426c03a691eca082b03f2b9. Tested on ARM/Beagle. Signed-off-by: Stephane Fillod Signed-off-by: David S. Miller diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index 5f19f84..53a1ba5 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -1017,6 +1017,7 @@ static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf) dev->net->ethtool_ops = &smsc95xx_ethtool_ops; dev->net->flags |= IFF_MULTICAST; dev->net->hard_header_len += SMSC95XX_TX_OVERHEAD_CSUM; + dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len; return 0; } -- cgit v0.10.2 From 7e665afbb561544d6fcc3334285db5809a38d2c8 Mon Sep 17 00:00:00 2001 From: Ursula Braun Date: Sun, 22 Apr 2012 21:21:41 +0000 Subject: qeth: allow change of blkt default values There exist qeth sysfs blkt attributes to change the default blkt values. But blkt changes are reset during online setting due to a 2nd invocation of qeth_determine_capabilites(). This patch makes sure blkt default values are configured during 1st run of qeth_determine_capabilities() only. Thus blkt changes are kept during online setting. Signed-off-by: Ursula Braun Reported-by: Horst Hartmann Signed-off-by: Frank Blaschka Signed-off-by: David S. Miller diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 120955c..d78d0ce 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -4540,7 +4540,8 @@ static void qeth_determine_capabilities(struct qeth_card *card) goto out_offline; } qeth_configure_unitaddr(card, prcd); - qeth_configure_blkt_default(card, prcd); + if (ddev_offline) + qeth_configure_blkt_default(card, prcd); kfree(prcd); rc = qdio_get_ssqd_desc(ddev, &card->ssqd); -- cgit v0.10.2 From e6e056baa24b48642b86129e8a3fdaa98f2fe947 Mon Sep 17 00:00:00 2001 From: Stefan Raspl Date: Sun, 22 Apr 2012 21:21:42 +0000 Subject: qeth: Use blkt defaults for OSA Express 4 The previous blkt defaults for OSA Express 4 cards produced inadequate performance for streaming workloads. The present patch will apply a set of more appropriate defaults. Signed-off-by: Stefan Raspl Reviewed-by: Ursula Braun Signed-off-by: Frank Blaschka Signed-off-by: David S. Miller diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index d78d0ce..8334dad 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -1672,7 +1672,8 @@ static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd) { QETH_DBF_TEXT(SETUP, 2, "cfgblkt"); - if (prcd[74] == 0xF0 && prcd[75] == 0xF0 && prcd[76] == 0xF5) { + if (prcd[74] == 0xF0 && prcd[75] == 0xF0 && + (prcd[76] == 0xF5 || prcd[76] == 0xF6)) { card->info.blkt.time_total = 250; card->info.blkt.inter_packet = 5; card->info.blkt.inter_packet_jumbo = 15; -- cgit v0.10.2 From c2f1244b86492b6cc89202f3f9ed43c88fb3e79d Mon Sep 17 00:00:00 2001 From: Thadeu Lima de Souza Cascardo Date: Mon, 23 Apr 2012 03:46:29 +0000 Subject: ehea: only register irq after setting up ports If we receive an interrupt too early before we set up ports in the probe function, there won't be any port ready to handle it. Only registering the irq after the ports are setup fixes the problem, and works fine without losing any interrupts. This causes crashes in some situations: [c000000f7ff7fd60] d000000008e223f0 .ehea_neq_tasklet+0x78/0x148 [ehea] [c000000f7ff7fe00] c0000000000b6cac .tasklet_hi_action+0xdc/0x210 [c000000f7ff7fea0] c0000000000b7cc8 .__do_softirq+0x178/0x300 [c000000f7ff7ff90] c000000000022694 .call_do_softirq+0x14/0x24 [c000000f68ee7900] c000000000010e04 .do_softirq+0xec/0x110 [c000000f68ee79a0] c0000000000b789c .irq_exit+0xac/0xe0 [c000000f68ee7a20] c0000000000110bc .do_IRQ+0x114/0x2a8 [c000000f68ee7ae0] c00000000000553c hardware_interrupt_entry+0x18/0x1c Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/ibm/ehea/ehea_main.c b/drivers/net/ethernet/ibm/ehea/ehea_main.c index 3516e17..acf34b6 100644 --- a/drivers/net/ethernet/ibm/ehea/ehea_main.c +++ b/drivers/net/ethernet/ibm/ehea/ehea_main.c @@ -3261,6 +3261,7 @@ static int __devinit ehea_probe_adapter(struct platform_device *dev, struct ehea_adapter *adapter; const u64 *adapter_handle; int ret; + int i; if (!dev || !dev->dev.of_node) { pr_err("Invalid ibmebus device probed\n"); @@ -3314,17 +3315,9 @@ static int __devinit ehea_probe_adapter(struct platform_device *dev, tasklet_init(&adapter->neq_tasklet, ehea_neq_tasklet, (unsigned long)adapter); - ret = ibmebus_request_irq(adapter->neq->attr.ist1, - ehea_interrupt_neq, IRQF_DISABLED, - "ehea_neq", adapter); - if (ret) { - dev_err(&dev->dev, "requesting NEQ IRQ failed\n"); - goto out_kill_eq; - } - ret = ehea_create_device_sysfs(dev); if (ret) - goto out_free_irq; + goto out_kill_eq; ret = ehea_setup_ports(adapter); if (ret) { @@ -3332,15 +3325,28 @@ static int __devinit ehea_probe_adapter(struct platform_device *dev, goto out_rem_dev_sysfs; } + ret = ibmebus_request_irq(adapter->neq->attr.ist1, + ehea_interrupt_neq, IRQF_DISABLED, + "ehea_neq", adapter); + if (ret) { + dev_err(&dev->dev, "requesting NEQ IRQ failed\n"); + goto out_shutdown_ports; + } + + ret = 0; goto out; +out_shutdown_ports: + for (i = 0; i < EHEA_MAX_PORTS; i++) + if (adapter->port[i]) { + ehea_shutdown_single_port(adapter->port[i]); + adapter->port[i] = NULL; + } + out_rem_dev_sysfs: ehea_remove_device_sysfs(dev); -out_free_irq: - ibmebus_free_irq(adapter->neq->attr.ist1, adapter); - out_kill_eq: ehea_destroy_eq(adapter->neq); -- cgit v0.10.2 From 1ab8be4a14409c55050db69271631afebac29b5a Mon Sep 17 00:00:00 2001 From: Anatolij Gustschin Date: Mon, 23 Apr 2012 12:06:43 +0000 Subject: net/davinci_emac: fix failing PHY connect attempts PHY connect attempts fail if no PHY id is specified in the emac platform data and another mdio bus has been registered before 'davinci_mdio' bus. In this case when configuring the interface, there will be an attempt to connect to already attached PHY on the previously registered mdio bus: net eth1: PHY already attached net eth1: could not connect to phy smsc911x-0:01 IP-Config: Failed to open eth1 IP-Config: Device `eth1' not found Fix this by modifying match_first_device() to match first PHY device on 'davinci_mdio' bus. Signed-off-by: Anatolij Gustschin Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c index 174a334..08aff1a 100644 --- a/drivers/net/ethernet/ti/davinci_emac.c +++ b/drivers/net/ethernet/ti/davinci_emac.c @@ -1511,7 +1511,7 @@ static int emac_devioctl(struct net_device *ndev, struct ifreq *ifrq, int cmd) static int match_first_device(struct device *dev, void *data) { - return 1; + return !strncmp(dev_name(dev), "davinci_mdio", 12); } /** -- cgit v0.10.2 From 2a5809499e35b53a6044fd34e72b242688b7a862 Mon Sep 17 00:00:00 2001 From: Ingo van Lil Date: Mon, 23 Apr 2012 22:05:38 +0000 Subject: asix: Fix tx transfer padding for full-speed USB The asix.c USB Ethernet driver avoids ending a tx transfer with a zero- length packet by appending a four-byte padding to transfers whose length is a multiple of maxpacket. However, the hard-coded 512 byte maxpacket length is valid for high-speed USB only; full-speed USB uses 64 byte packets. Signed-off-by: Ingo van Lil Signed-off-by: David S. Miller diff --git a/drivers/net/usb/asix.c b/drivers/net/usb/asix.c index 5ee032c..42b5151 100644 --- a/drivers/net/usb/asix.c +++ b/drivers/net/usb/asix.c @@ -355,7 +355,7 @@ static struct sk_buff *asix_tx_fixup(struct usbnet *dev, struct sk_buff *skb, u32 packet_len; u32 padbytes = 0xffff0000; - padlen = ((skb->len + 4) % 512) ? 0 : 4; + padlen = ((skb->len + 4) & (dev->maxpacket - 1)) ? 0 : 4; if ((!skb_cloned(skb)) && ((headroom + tailroom) >= (4 + padlen))) { @@ -377,7 +377,7 @@ static struct sk_buff *asix_tx_fixup(struct usbnet *dev, struct sk_buff *skb, cpu_to_le32s(&packet_len); skb_copy_to_linear_data(skb, &packet_len, sizeof(packet_len)); - if ((skb->len % 512) == 0) { + if (padlen) { cpu_to_le32s(&padbytes); memcpy(skb_tail_pointer(skb), &padbytes, sizeof(padbytes)); skb_put(skb, sizeof(padbytes)); -- cgit v0.10.2 From ddb6706af3cd372194cecd2cc61950519df620d7 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Tue, 24 Apr 2012 01:11:09 -0300 Subject: ASoC: dt: sgtl5000.txt: Add description for 'reg' field Add description for 'reg' field. Signed-off-by: Fabio Estevam Signed-off-by: Mark Brown diff --git a/Documentation/devicetree/bindings/sound/sgtl5000.txt b/Documentation/devicetree/bindings/sound/sgtl5000.txt index 2c3cd41..9cc4444 100644 --- a/Documentation/devicetree/bindings/sound/sgtl5000.txt +++ b/Documentation/devicetree/bindings/sound/sgtl5000.txt @@ -3,6 +3,8 @@ Required properties: - compatible : "fsl,sgtl5000". +- reg : the I2C address of the device + Example: codec: sgtl5000@0a { -- cgit v0.10.2 From c34ce320d9fe328e3272def20b152f39ccfa045e Mon Sep 17 00:00:00 2001 From: Richard Zhao Date: Tue, 24 Apr 2012 15:24:43 +0800 Subject: ASoC: core: check of_property_count_strings failure Signed-off-by: Richard Zhao Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 3a4e93e..b390f00 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -3631,10 +3631,10 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, int i, ret; num_routes = of_property_count_strings(np, propname); - if (num_routes & 1) { + if (num_routes < 0 || num_routes & 1) { dev_err(card->dev, - "Property '%s's length is not even\n", - propname); + "Property '%s' does not exist or its length is not even\n", + propname); return -EINVAL; } num_routes /= 2; -- cgit v0.10.2 From 4c569a72c30dfee9b5133284aba67e3aa0c9505d Mon Sep 17 00:00:00 2001 From: Bob Peterson Date: Tue, 10 Apr 2012 14:45:24 -0400 Subject: GFS2: Instruct DLM to avoid queue convert slowdown This patch instructs DLM to prevent an "in place" conversion, where the lock just stays on the granted queue, and instead forces the conversion to the back of the convert queue. This is done on upward conversions only. This is useful in cases where, for example, a lock is frequently needed in PR on one node, but another node needs it temporarily in EX to update it. This may happen, for example, when the rindex is being updated by gfs2_grow. The gfs2_grow needs to have the lock in EX, but the other nodes need to re-read it to retrieve the updates. The glock is already granted in PR on the non-growing nodes, so this prevents them from continually re-granting the lock in PR, and forces the EX from gfs2_grow to go through. Signed-off-by: Bob Peterson Signed-off-by: Steven Whitehouse diff --git a/fs/gfs2/lock_dlm.c b/fs/gfs2/lock_dlm.c index f8411bd..5f5e70e 100644 --- a/fs/gfs2/lock_dlm.c +++ b/fs/gfs2/lock_dlm.c @@ -200,10 +200,11 @@ static int make_mode(const unsigned int lmstate) return -1; } -static u32 make_flags(const u32 lkid, const unsigned int gfs_flags, +static u32 make_flags(struct gfs2_glock *gl, const unsigned int gfs_flags, const int req) { u32 lkf = DLM_LKF_VALBLK; + u32 lkid = gl->gl_lksb.sb_lkid; if (gfs_flags & LM_FLAG_TRY) lkf |= DLM_LKF_NOQUEUE; @@ -227,8 +228,11 @@ static u32 make_flags(const u32 lkid, const unsigned int gfs_flags, BUG(); } - if (lkid != 0) + if (lkid != 0) { lkf |= DLM_LKF_CONVERT; + if (test_bit(GLF_BLOCKING, &gl->gl_flags)) + lkf |= DLM_LKF_QUECVT; + } return lkf; } @@ -250,7 +254,7 @@ static int gdlm_lock(struct gfs2_glock *gl, unsigned int req_state, char strname[GDLM_STRNAME_BYTES] = ""; req = make_mode(req_state); - lkf = make_flags(gl->gl_lksb.sb_lkid, flags, req); + lkf = make_flags(gl, flags, req); gfs2_glstats_inc(gl, GFS2_LKS_DCOUNT); gfs2_sbstats_inc(gl, GFS2_LKS_DCOUNT); if (gl->gl_lksb.sb_lkid) { -- cgit v0.10.2 From 16cde9931bcd8d8ca968ef1cded02684ea040374 Mon Sep 17 00:00:00 2001 From: Szymon Janc Date: Fri, 13 Apr 2012 12:32:42 +0200 Subject: Bluetooth: Fix missing break in hci_cmd_complete_evt Command complete event for HCI_OP_USER_PASSKEY_NEG_REPLY would result in calling handler function also for HCI_OP_LE_SET_SCAN_PARAM. This could result in undefined behaviour. Signed-off-by: Szymon Janc Signed-off-by: Gustavo Padovan diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 6a72eae..7f87a70 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -2314,6 +2314,7 @@ static inline void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *sk case HCI_OP_USER_PASSKEY_NEG_REPLY: hci_cc_user_passkey_neg_reply(hdev, skb); + break; case HCI_OP_LE_SET_SCAN_PARAM: hci_cc_le_set_scan_param(hdev, skb); -- cgit v0.10.2 From 985140369be1e886754d8ac0375dd64e4f727311 Mon Sep 17 00:00:00 2001 From: Steven Harms Date: Fri, 13 Apr 2012 14:45:55 -0400 Subject: Add Foxconn / Hon Hai IDs for btusb module This change adds 0x0489:0xe033 to the btusb module. This bluetooth usb device is integrated in the Acer TimelineX AS4830TG-6808 notebook. Output from /sys/kernel/debug/usb/devices: T: Bus=01 Lev=02 Prnt=02 Port=05 Cnt=02 Dev#= 4 Spd=12 MxCh= 0 D: Ver= 2.00 Cls=ff(vend.) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0489 ProdID=e033 Rev= 2.29 S: Manufacturer=Broadcom Corp S: Product=Acer Module S: SerialNumber=60D819F74101 C:* #Ifs= 4 Cfg#= 1 Atr=e0 MxPwr= 0mA I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 1 Alt= 1 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 32 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 32 Ivl=1ms I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 64 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 64 Ivl=1ms I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 64 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 64 Ivl=1ms I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none) E: Ad=84(I) Atr=02(Bulk) MxPS= 32 Ivl=0ms E: Ad=04(O) Atr=02(Bulk) MxPS= 32 Ivl=0ms I:* If#= 3 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=01 Driver=(none) Signed-off-by: Steven Harms Signed-off-by: Gustavo Padovan diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 93cc828..9217121 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -108,6 +108,9 @@ static struct usb_device_id btusb_table[] = { { USB_DEVICE(0x0a5c, 0x21f3) }, { USB_DEVICE(0x413c, 0x8197) }, + /* Foxconn - Hon Hai */ + { USB_DEVICE(0x0489, 0xe033) }, + { } /* Terminating entry */ }; -- cgit v0.10.2 From 3c7c87fd5bd71f57c68a64d11a15170d0dc4f7aa Mon Sep 17 00:00:00 2001 From: Sachin Prabhu Date: Tue, 24 Apr 2012 15:28:14 +0100 Subject: CIFS: Show backupuid/gid in /proc/mounts Show backupuid/backupgid in /proc/mounts for cifs shares mounted with the backupuid/backupgid feature. Also consolidate the two separate checks for pvolume_info->backupuid_specified into a single if condition in cifs_setup_cifs_sb(). Signed-off-by: Sachin Prabhu Reviewed-by: Jeff Layton Signed-off-by: Steve French diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index d342128..ea8eb92 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -434,6 +434,10 @@ cifs_show_options(struct seq_file *s, struct dentry *root) seq_printf(s, ",noperm"); if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_STRICT_IO) seq_printf(s, ",strictcache"); + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_BACKUPUID) + seq_printf(s, ",backupuid=%u", cifs_sb->mnt_backupuid); + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_BACKUPGID) + seq_printf(s, ",backupgid=%u", cifs_sb->mnt_backupgid); seq_printf(s, ",rsize=%d", cifs_sb->rsize); seq_printf(s, ",wsize=%d", cifs_sb->wsize); diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index f31dc9a..f4d381e 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -3228,10 +3228,6 @@ void cifs_setup_cifs_sb(struct smb_vol *pvolume_info, cifs_sb->mnt_uid = pvolume_info->linux_uid; cifs_sb->mnt_gid = pvolume_info->linux_gid; - if (pvolume_info->backupuid_specified) - cifs_sb->mnt_backupuid = pvolume_info->backupuid; - if (pvolume_info->backupgid_specified) - cifs_sb->mnt_backupgid = pvolume_info->backupgid; cifs_sb->mnt_file_mode = pvolume_info->file_mode; cifs_sb->mnt_dir_mode = pvolume_info->dir_mode; cFYI(1, "file mode: 0x%hx dir mode: 0x%hx", @@ -3262,10 +3258,14 @@ void cifs_setup_cifs_sb(struct smb_vol *pvolume_info, cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_RWPIDFORWARD; if (pvolume_info->cifs_acl) cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_CIFS_ACL; - if (pvolume_info->backupuid_specified) + if (pvolume_info->backupuid_specified) { cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_CIFS_BACKUPUID; - if (pvolume_info->backupgid_specified) + cifs_sb->mnt_backupuid = pvolume_info->backupuid; + } + if (pvolume_info->backupgid_specified) { cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_CIFS_BACKUPGID; + cifs_sb->mnt_backupgid = pvolume_info->backupgid; + } if (pvolume_info->override_uid) cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_OVERR_UID; if (pvolume_info->override_gid) -- cgit v0.10.2 From 28f8881023c9713c303c0feda270929f9384c019 Mon Sep 17 00:00:00 2001 From: Sachin Prabhu Date: Tue, 24 Apr 2012 15:28:30 +0100 Subject: Use correct conversion specifiers in cifs_show_options cifs_show_options uses the wrong conversion specifier for uid, gid, rsize & wsize. Correct this to %u to match it to the variable type 'unsigned integer'. Signed-off-by: Sachin Prabhu Reviewed-by: Jeff Layton Signed-off-by: Steve French diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index ea8eb92..811245b 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -370,13 +370,13 @@ cifs_show_options(struct seq_file *s, struct dentry *root) (int)(srcaddr->sa_family)); } - seq_printf(s, ",uid=%d", cifs_sb->mnt_uid); + seq_printf(s, ",uid=%u", cifs_sb->mnt_uid); if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) seq_printf(s, ",forceuid"); else seq_printf(s, ",noforceuid"); - seq_printf(s, ",gid=%d", cifs_sb->mnt_gid); + seq_printf(s, ",gid=%u", cifs_sb->mnt_gid); if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) seq_printf(s, ",forcegid"); else @@ -439,8 +439,8 @@ cifs_show_options(struct seq_file *s, struct dentry *root) if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_BACKUPGID) seq_printf(s, ",backupgid=%u", cifs_sb->mnt_backupgid); - seq_printf(s, ",rsize=%d", cifs_sb->rsize); - seq_printf(s, ",wsize=%d", cifs_sb->wsize); + seq_printf(s, ",rsize=%u", cifs_sb->rsize); + seq_printf(s, ",wsize=%u", cifs_sb->wsize); /* convert actimeo and display it in seconds */ seq_printf(s, ",actimeo=%lu", cifs_sb->actimeo / HZ); -- cgit v0.10.2 From 5ef4acd58ab2abd0dd0c8e3cacd61a0dc5d73646 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 23 Apr 2012 14:17:50 -0700 Subject: iwlwifi: fix hardware queue programming Newer devices have 20 (5000 series) or 30 (6000 series) hardware queues, rather than the 16 that 4965 had. This was added to the driver a long time ago, but improperly: the queue registers for the higher queues aren't just continuations of the registers for the first 16 queues, they are in other places. Therefore, the hardware would lock up when trying to activate queue 16 or above and the device would have to be restarted. Thanks goes to Emmanuel who identified this and told me how the queue programming should be done. Note that we don't use queues 20 and higher today and doing so needs more work than this. Cc: stable@vger.kernel.org Signed-off-by: Johannes Berg Signed-off-by: Wey-Yi Guy Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/iwlwifi/iwl-fh.h b/drivers/net/wireless/iwlwifi/iwl-fh.h index 9020809..74bce97 100644 --- a/drivers/net/wireless/iwlwifi/iwl-fh.h +++ b/drivers/net/wireless/iwlwifi/iwl-fh.h @@ -104,15 +104,29 @@ * (see struct iwl_tfd_frame). These 16 pointer registers are offset by 0x04 * bytes from one another. Each TFD circular buffer in DRAM must be 256-byte * aligned (address bits 0-7 must be 0). + * Later devices have 20 (5000 series) or 30 (higher) queues, but the registers + * for them are in different places. * * Bit fields in each pointer register: * 27-0: TFD CB physical base address [35:8], must be 256-byte aligned */ -#define FH_MEM_CBBC_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0x9D0) -#define FH_MEM_CBBC_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xA10) - -/* Find TFD CB base pointer for given queue (range 0-15). */ -#define FH_MEM_CBBC_QUEUE(x) (FH_MEM_CBBC_LOWER_BOUND + (x) * 0x4) +#define FH_MEM_CBBC_0_15_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0x9D0) +#define FH_MEM_CBBC_0_15_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xA10) +#define FH_MEM_CBBC_16_19_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xBF0) +#define FH_MEM_CBBC_16_19_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xC00) +#define FH_MEM_CBBC_20_31_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xB20) +#define FH_MEM_CBBC_20_31_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xB80) + +/* Find TFD CB base pointer for given queue */ +static inline unsigned int FH_MEM_CBBC_QUEUE(unsigned int chnl) +{ + if (chnl < 16) + return FH_MEM_CBBC_0_15_LOWER_BOUND + 4 * chnl; + if (chnl < 20) + return FH_MEM_CBBC_16_19_LOWER_BOUND + 4 * (chnl - 16); + WARN_ON_ONCE(chnl >= 32); + return FH_MEM_CBBC_20_31_LOWER_BOUND + 4 * (chnl - 20); +} /** diff --git a/drivers/net/wireless/iwlwifi/iwl-prph.h b/drivers/net/wireless/iwlwifi/iwl-prph.h index 75dc20b..3b106929 100644 --- a/drivers/net/wireless/iwlwifi/iwl-prph.h +++ b/drivers/net/wireless/iwlwifi/iwl-prph.h @@ -223,12 +223,33 @@ #define SCD_AIT (SCD_BASE + 0x0c) #define SCD_TXFACT (SCD_BASE + 0x10) #define SCD_ACTIVE (SCD_BASE + 0x14) -#define SCD_QUEUE_WRPTR(x) (SCD_BASE + 0x18 + (x) * 4) -#define SCD_QUEUE_RDPTR(x) (SCD_BASE + 0x68 + (x) * 4) #define SCD_QUEUECHAIN_SEL (SCD_BASE + 0xe8) #define SCD_AGGR_SEL (SCD_BASE + 0x248) #define SCD_INTERRUPT_MASK (SCD_BASE + 0x108) -#define SCD_QUEUE_STATUS_BITS(x) (SCD_BASE + 0x10c + (x) * 4) + +static inline unsigned int SCD_QUEUE_WRPTR(unsigned int chnl) +{ + if (chnl < 20) + return SCD_BASE + 0x18 + chnl * 4; + WARN_ON_ONCE(chnl >= 32); + return SCD_BASE + 0x284 + (chnl - 20) * 4; +} + +static inline unsigned int SCD_QUEUE_RDPTR(unsigned int chnl) +{ + if (chnl < 20) + return SCD_BASE + 0x68 + chnl * 4; + WARN_ON_ONCE(chnl >= 32); + return SCD_BASE + 0x2B4 + (chnl - 20) * 4; +} + +static inline unsigned int SCD_QUEUE_STATUS_BITS(unsigned int chnl) +{ + if (chnl < 20) + return SCD_BASE + 0x10c + chnl * 4; + WARN_ON_ONCE(chnl >= 32); + return SCD_BASE + 0x384 + (chnl - 20) * 4; +} /*********************** END TX SCHEDULER *************************************/ -- cgit v0.10.2 From 78cbcf2b9dbe0565820dc7721316f9c401000a68 Mon Sep 17 00:00:00 2001 From: Meenakshi Venkataraman Date: Sun, 22 Apr 2012 07:55:27 -0700 Subject: iwlwifi: use correct released ucode version Report correctly the latest released version of the iwlwifi firmware for all iwlwifi-supported devices. Cc: stable@vger.kernel.org #3.3+ Signed-off-by: Meenakshi Venkataraman Signed-off-by: Wey-Yi Guy Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c index 5b0d888..8d80e23 100644 --- a/drivers/net/wireless/iwlwifi/iwl-1000.c +++ b/drivers/net/wireless/iwlwifi/iwl-1000.c @@ -46,8 +46,8 @@ #include "iwl-prph.h" /* Highest firmware API version supported */ -#define IWL1000_UCODE_API_MAX 6 -#define IWL100_UCODE_API_MAX 6 +#define IWL1000_UCODE_API_MAX 5 +#define IWL100_UCODE_API_MAX 5 /* Oldest version we won't warn about */ #define IWL1000_UCODE_API_OK 5 @@ -226,5 +226,5 @@ const struct iwl_cfg iwl100_bg_cfg = { IWL_DEVICE_100, }; -MODULE_FIRMWARE(IWL1000_MODULE_FIRMWARE(IWL1000_UCODE_API_MAX)); -MODULE_FIRMWARE(IWL100_MODULE_FIRMWARE(IWL100_UCODE_API_MAX)); +MODULE_FIRMWARE(IWL1000_MODULE_FIRMWARE(IWL1000_UCODE_API_OK)); +MODULE_FIRMWARE(IWL100_MODULE_FIRMWARE(IWL100_UCODE_API_OK)); diff --git a/drivers/net/wireless/iwlwifi/iwl-2000.c b/drivers/net/wireless/iwlwifi/iwl-2000.c index 5635b9e..ea10862 100644 --- a/drivers/net/wireless/iwlwifi/iwl-2000.c +++ b/drivers/net/wireless/iwlwifi/iwl-2000.c @@ -51,10 +51,10 @@ #define IWL135_UCODE_API_MAX 6 /* Oldest version we won't warn about */ -#define IWL2030_UCODE_API_OK 5 -#define IWL2000_UCODE_API_OK 5 -#define IWL105_UCODE_API_OK 5 -#define IWL135_UCODE_API_OK 5 +#define IWL2030_UCODE_API_OK 6 +#define IWL2000_UCODE_API_OK 6 +#define IWL105_UCODE_API_OK 6 +#define IWL135_UCODE_API_OK 6 /* Lowest firmware API version supported */ #define IWL2030_UCODE_API_MIN 5 @@ -328,7 +328,7 @@ const struct iwl_cfg iwl135_bgn_cfg = { .ht_params = &iwl2000_ht_params, }; -MODULE_FIRMWARE(IWL2000_MODULE_FIRMWARE(IWL2000_UCODE_API_MAX)); -MODULE_FIRMWARE(IWL2030_MODULE_FIRMWARE(IWL2030_UCODE_API_MAX)); -MODULE_FIRMWARE(IWL105_MODULE_FIRMWARE(IWL105_UCODE_API_MAX)); -MODULE_FIRMWARE(IWL135_MODULE_FIRMWARE(IWL135_UCODE_API_MAX)); +MODULE_FIRMWARE(IWL2000_MODULE_FIRMWARE(IWL2000_UCODE_API_OK)); +MODULE_FIRMWARE(IWL2030_MODULE_FIRMWARE(IWL2030_UCODE_API_OK)); +MODULE_FIRMWARE(IWL105_MODULE_FIRMWARE(IWL105_UCODE_API_OK)); +MODULE_FIRMWARE(IWL135_MODULE_FIRMWARE(IWL135_UCODE_API_OK)); diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index a805e97..de0920c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -51,6 +51,10 @@ #define IWL5000_UCODE_API_MAX 5 #define IWL5150_UCODE_API_MAX 2 +/* Oldest version we won't warn about */ +#define IWL5000_UCODE_API_OK 5 +#define IWL5150_UCODE_API_OK 2 + /* Lowest firmware API version supported */ #define IWL5000_UCODE_API_MIN 1 #define IWL5150_UCODE_API_MIN 1 @@ -326,6 +330,7 @@ static const struct iwl_ht_params iwl5000_ht_params = { #define IWL_DEVICE_5000 \ .fw_name_pre = IWL5000_FW_PRE, \ .ucode_api_max = IWL5000_UCODE_API_MAX, \ + .ucode_api_ok = IWL5000_UCODE_API_OK, \ .ucode_api_min = IWL5000_UCODE_API_MIN, \ .max_inst_size = IWLAGN_RTC_INST_SIZE, \ .max_data_size = IWLAGN_RTC_DATA_SIZE, \ @@ -371,6 +376,7 @@ const struct iwl_cfg iwl5350_agn_cfg = { .name = "Intel(R) WiMAX/WiFi Link 5350 AGN", .fw_name_pre = IWL5000_FW_PRE, .ucode_api_max = IWL5000_UCODE_API_MAX, + .ucode_api_ok = IWL5000_UCODE_API_OK, .ucode_api_min = IWL5000_UCODE_API_MIN, .max_inst_size = IWLAGN_RTC_INST_SIZE, .max_data_size = IWLAGN_RTC_DATA_SIZE, @@ -386,6 +392,7 @@ const struct iwl_cfg iwl5350_agn_cfg = { #define IWL_DEVICE_5150 \ .fw_name_pre = IWL5150_FW_PRE, \ .ucode_api_max = IWL5150_UCODE_API_MAX, \ + .ucode_api_ok = IWL5150_UCODE_API_OK, \ .ucode_api_min = IWL5150_UCODE_API_MIN, \ .max_inst_size = IWLAGN_RTC_INST_SIZE, \ .max_data_size = IWLAGN_RTC_DATA_SIZE, \ @@ -409,5 +416,5 @@ const struct iwl_cfg iwl5150_abg_cfg = { IWL_DEVICE_5150, }; -MODULE_FIRMWARE(IWL5000_MODULE_FIRMWARE(IWL5000_UCODE_API_MAX)); -MODULE_FIRMWARE(IWL5150_MODULE_FIRMWARE(IWL5150_UCODE_API_MAX)); +MODULE_FIRMWARE(IWL5000_MODULE_FIRMWARE(IWL5000_UCODE_API_OK)); +MODULE_FIRMWARE(IWL5150_MODULE_FIRMWARE(IWL5150_UCODE_API_OK)); diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c index 64060cd..b1b6951 100644 --- a/drivers/net/wireless/iwlwifi/iwl-6000.c +++ b/drivers/net/wireless/iwlwifi/iwl-6000.c @@ -53,6 +53,8 @@ /* Oldest version we won't warn about */ #define IWL6000_UCODE_API_OK 4 #define IWL6000G2_UCODE_API_OK 5 +#define IWL6050_UCODE_API_OK 5 +#define IWL6000G2B_UCODE_API_OK 6 /* Lowest firmware API version supported */ #define IWL6000_UCODE_API_MIN 4 @@ -334,7 +336,7 @@ static const struct iwl_bt_params iwl6000_bt_params = { #define IWL_DEVICE_6005 \ .fw_name_pre = IWL6005_FW_PRE, \ .ucode_api_max = IWL6000G2_UCODE_API_MAX, \ - .ucode_api_ok = IWL6000G2_UCODE_API_OK, \ + .ucode_api_ok = IWL6000G2B_UCODE_API_OK, \ .ucode_api_min = IWL6000G2_UCODE_API_MIN, \ .max_inst_size = IWL60_RTC_INST_SIZE, \ .max_data_size = IWL60_RTC_DATA_SIZE, \ @@ -557,6 +559,6 @@ const struct iwl_cfg iwl6000_3agn_cfg = { }; MODULE_FIRMWARE(IWL6000_MODULE_FIRMWARE(IWL6000_UCODE_API_OK)); -MODULE_FIRMWARE(IWL6050_MODULE_FIRMWARE(IWL6050_UCODE_API_MAX)); -MODULE_FIRMWARE(IWL6005_MODULE_FIRMWARE(IWL6000G2_UCODE_API_MAX)); -MODULE_FIRMWARE(IWL6030_MODULE_FIRMWARE(IWL6000G2_UCODE_API_MAX)); +MODULE_FIRMWARE(IWL6050_MODULE_FIRMWARE(IWL6050_UCODE_API_OK)); +MODULE_FIRMWARE(IWL6005_MODULE_FIRMWARE(IWL6000G2_UCODE_API_OK)); +MODULE_FIRMWARE(IWL6030_MODULE_FIRMWARE(IWL6000G2B_UCODE_API_OK)); -- cgit v0.10.2 From afa762f6871a8cb05fbef5d0f83fac14304aa816 Mon Sep 17 00:00:00 2001 From: Eliad Peller Date: Mon, 23 Apr 2012 14:45:15 +0300 Subject: mac80211: call ieee80211_mgd_stop() on interface stop ieee80211_mgd_teardown() is called on netdev removal, which occurs after the vif was already removed from the low-level driver, resulting in the following warning: [ 4809.014734] ------------[ cut here ]------------ [ 4809.019861] WARNING: at net/mac80211/driver-ops.h:12 ieee80211_bss_info_change_notify+0x200/0x2c8 [mac80211]() [ 4809.030388] wlan0: Failed check-sdata-in-driver check, flags: 0x4 [ 4809.036862] Modules linked in: wlcore_sdio(-) wl12xx wlcore mac80211 cfg80211 [last unloaded: cfg80211] [ 4809.046849] [] (unwind_backtrace+0x0/0x12c) [ 4809.055937] [] (dump_stack+0x20/0x24) [ 4809.065385] [] (warn_slowpath_common+0x5c/0x74) [ 4809.075589] [] (warn_slowpath_fmt+0x40/0x48) [ 4809.088291] [] (ieee80211_bss_info_change_notify+0x200/0x2c8 [mac80211]) [ 4809.102844] [] (ieee80211_destroy_auth_data+0x80/0xa4 [mac80211]) [ 4809.116276] [] (ieee80211_mgd_teardown+0x5c/0x74 [mac80211]) [ 4809.129331] [] (ieee80211_teardown_sdata+0xb0/0xd8 [mac80211]) [ 4809.141595] [] (rollback_registered_many+0x228/0x2f0) [ 4809.153056] [] (unregister_netdevice_many+0x28/0x50) [ 4809.165696] [] (ieee80211_remove_interfaces+0xb4/0xdc [mac80211]) [ 4809.179151] [] (ieee80211_unregister_hw+0x50/0xf0 [mac80211]) [ 4809.191043] [] (wlcore_remove+0x5c/0x7c [wlcore]) [ 4809.201491] [] (platform_drv_remove+0x24/0x28) [ 4809.212029] [] (__device_release_driver+0x8c/0xcc) [ 4809.222738] [] (device_release_driver+0x30/0x3c) [ 4809.233099] [] (bus_remove_device+0x10c/0x128) [ 4809.242620] [] (device_del+0x11c/0x17c) [ 4809.252150] [] (platform_device_del+0x28/0x68) [ 4809.263051] [] (wl1271_remove+0x3c/0x50 [wlcore_sdio]) [ 4809.273590] [] (sdio_bus_remove+0x48/0xf8) [ 4809.283754] [] (__device_release_driver+0x8c/0xcc) [ 4809.293729] [] (driver_detach+0x9c/0xc4) [ 4809.303163] [] (bus_remove_driver+0xc4/0xf4) [ 4809.312973] [] (driver_unregister+0x70/0x7c) [ 4809.323220] [] (sdio_unregister_driver+0x24/0x2c) [ 4809.334213] [] (wl1271_exit+0x14/0x1c [wlcore_sdio]) [ 4809.344930] [] (sys_delete_module+0x228/0x2a8) [ 4809.354734] ---[ end trace 515290ccf5feb522 ]--- Rename ieee80211_mgd_teardown() to ieee80211_mgd_stop(), and call it on ieee80211_do_stop(). Signed-off-by: Eliad Peller Signed-off-by: John W. Linville diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index d9798a3..db8fae5 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1210,7 +1210,7 @@ void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb); void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata); void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata); -void ieee80211_mgd_teardown(struct ieee80211_sub_if_data *sdata); +void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata); /* IBSS code */ void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local); diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 401c01f..c20051b 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -486,6 +486,8 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, /* free all potentially still buffered bcast frames */ local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps_bc_buf); skb_queue_purge(&sdata->u.ap.ps_bc_buf); + } else if (sdata->vif.type == NL80211_IFTYPE_STATION) { + ieee80211_mgd_stop(sdata); } if (going_down) @@ -644,8 +646,6 @@ static void ieee80211_teardown_sdata(struct net_device *dev) if (ieee80211_vif_is_mesh(&sdata->vif)) mesh_rmc_free(sdata); - else if (sdata->vif.type == NL80211_IFTYPE_STATION) - ieee80211_mgd_teardown(sdata); flushed = sta_info_flush(local, sdata); WARN_ON(flushed); diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index f76da5b..20c680b 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -3497,7 +3497,7 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, return 0; } -void ieee80211_mgd_teardown(struct ieee80211_sub_if_data *sdata) +void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; -- cgit v0.10.2 From a2cd62ec9a3a2805014bdc14e0644b5faa352d3c Mon Sep 17 00:00:00 2001 From: Omar Ramirez Luna Date: Fri, 20 Apr 2012 20:22:41 -0500 Subject: staging: tidspbridge: remove usage of OMAP2_L4_IO_ADDRESS MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Instead now use ioremap. This is needed for 3.4 since this change emerged in mainline during one of the previous rc cycles. These solves the following compilation breaks: drivers/staging/tidspbridge/core/tiomap3430.c: In function ‘bridge_brd_start’: drivers/staging/tidspbridge/core/tiomap3430.c:425:4: error: implicit declaration of function ‘OMAP2_L4_IO_ADDRESS’ drivers/staging/tidspbridge/core/wdt.c: In function ‘dsp_wdt_init’: drivers/staging/tidspbridge/core/wdt.c:56:2: error: implicit declaration of function ‘OMAP2_L4_IO_ADDRESS’ For control registers a new function needs to be defined so we can get rid of a layer violation, but that approach must be queued for the next merge window. As seen in: http://www.arm.linux.org.uk/developer/build/ platform: omap4430-sdp build: uImage config: randconfig version: 3.4.0-rc3 start time: Apr 20 2012 01:07 Reported-by: Tony Lindgren Signed-off-by: Omar Ramirez Luna Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/tidspbridge/core/tiomap3430.c b/drivers/staging/tidspbridge/core/tiomap3430.c index 7862513..9cf29fc 100644 --- a/drivers/staging/tidspbridge/core/tiomap3430.c +++ b/drivers/staging/tidspbridge/core/tiomap3430.c @@ -79,10 +79,6 @@ #define OMAP343X_CONTROL_IVA2_BOOTADDR (OMAP2_CONTROL_GENERAL + 0x0190) #define OMAP343X_CONTROL_IVA2_BOOTMOD (OMAP2_CONTROL_GENERAL + 0x0194) -#define OMAP343X_CTRL_REGADDR(reg) \ - OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE + (reg)) - - /* Forward Declarations: */ static int bridge_brd_monitor(struct bridge_dev_context *dev_ctxt); static int bridge_brd_read(struct bridge_dev_context *dev_ctxt, @@ -418,19 +414,27 @@ static int bridge_brd_start(struct bridge_dev_context *dev_ctxt, /* Assert RST1 i.e only the RST only for DSP megacell */ if (!status) { + /* + * XXX: ioremapping MUST be removed once ctrl + * function is made available. + */ + void __iomem *ctrl = ioremap(OMAP343X_CTRL_BASE, SZ_4K); + if (!ctrl) + return -ENOMEM; + (*pdata->dsp_prm_rmw_bits)(OMAP3430_RST1_IVA2_MASK, OMAP3430_RST1_IVA2_MASK, OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL); /* Mask address with 1K for compatibility */ __raw_writel(dsp_addr & OMAP3_IVA2_BOOTADDR_MASK, - OMAP343X_CTRL_REGADDR( - OMAP343X_CONTROL_IVA2_BOOTADDR)); + ctrl + OMAP343X_CONTROL_IVA2_BOOTADDR); /* * Set bootmode to self loop if dsp_debug flag is true */ __raw_writel((dsp_debug) ? OMAP3_IVA2_BOOTMOD_IDLE : 0, - OMAP343X_CTRL_REGADDR( - OMAP343X_CONTROL_IVA2_BOOTMOD)); + ctrl + OMAP343X_CONTROL_IVA2_BOOTMOD); + + iounmap(ctrl); } } if (!status) { diff --git a/drivers/staging/tidspbridge/core/wdt.c b/drivers/staging/tidspbridge/core/wdt.c index 70055c8..870f934 100644 --- a/drivers/staging/tidspbridge/core/wdt.c +++ b/drivers/staging/tidspbridge/core/wdt.c @@ -53,7 +53,10 @@ int dsp_wdt_init(void) int ret = 0; dsp_wdt.sm_wdt = NULL; - dsp_wdt.reg_base = OMAP2_L4_IO_ADDRESS(OMAP34XX_WDT3_BASE); + dsp_wdt.reg_base = ioremap(OMAP34XX_WDT3_BASE, SZ_4K); + if (!dsp_wdt.reg_base) + return -ENOMEM; + tasklet_init(&dsp_wdt.wdt3_tasklet, dsp_wdt_dpc, 0); dsp_wdt.fclk = clk_get(NULL, "wdt3_fck"); @@ -99,6 +102,9 @@ void dsp_wdt_exit(void) dsp_wdt.fclk = NULL; dsp_wdt.iclk = NULL; dsp_wdt.sm_wdt = NULL; + + if (dsp_wdt.reg_base) + iounmap(dsp_wdt.reg_base); dsp_wdt.reg_base = NULL; } -- cgit v0.10.2 From 349ae79c0a3db1632ac4db955c53db05fc017bde Mon Sep 17 00:00:00 2001 From: Seth Jennings Date: Mon, 23 Apr 2012 20:33:50 -0500 Subject: staging: zcache: fix Kconfig crypto dependency ZCACHE is a boolean in the Kconfig. When selected, it should require that CRYPTO be builtin (=y). Currently, ZCACHE=y and CRYPTO=m is a valid configuration when it should not be. This patch changes the zcache Kconfig to enforce this dependency. Signed-off-by: Seth Jennings Acked-by: Konrad Rzeszutek Wilk Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/zcache/Kconfig b/drivers/staging/zcache/Kconfig index 3ed2c8f..7048e01 100644 --- a/drivers/staging/zcache/Kconfig +++ b/drivers/staging/zcache/Kconfig @@ -2,7 +2,7 @@ config ZCACHE bool "Dynamic compression of swap pages and clean pagecache pages" # X86 dependency is because zsmalloc uses non-portable pte/tlb # functions - depends on (CLEANCACHE || FRONTSWAP) && CRYPTO && X86 + depends on (CLEANCACHE || FRONTSWAP) && CRYPTO=y && X86 select ZSMALLOC select CRYPTO_LZO default n -- cgit v0.10.2 From dc890df0a77cafe5f4a3d81c0dade637c27f1934 Mon Sep 17 00:00:00 2001 From: Imre Kaloz Date: Thu, 19 Apr 2012 12:27:27 +0200 Subject: staging: octeon-ethernet: fix build errors by including interrupt.h This patch fixes the following build failures: drivers/staging/octeon/ethernet.c: In function 'cvm_oct_cleanup_module': drivers/staging/octeon/ethernet.c:799:2: error: implicit declaration of function 'free_irq' drivers/staging/octeon/ethernet-rx.c: In function 'cvm_oct_no_more_work': drivers/staging/octeon/ethernet-rx.c:119:3: error: implicit declaration of function 'enable_irq' drivers/staging/octeon/ethernet-rx.c: In function 'cvm_oct_do_interrupt': drivers/staging/octeon/ethernet-rx.c:136:2: error: implicit declaration of function 'disable_irq_nosync' drivers/staging/octeon/ethernet-rx.c: In function 'cvm_oct_rx_initialize': drivers/staging/octeon/ethernet-rx.c:532:2: error: implicit declaration of function 'request_irq' drivers/staging/octeon/ethernet-tx.c: In function 'cvm_oct_tx_initialize': drivers/staging/octeon/ethernet-tx.c:712:2: error: implicit declaration of function 'request_irq' drivers/staging/octeon/ethernet-tx.c: In function 'cvm_oct_tx_shutdown': drivers/staging/octeon/ethernet-tx.c:723:2: error: implicit declaration of function 'free_irq' Signed-off-by: Imre Kaloz Acked-by: David Daney Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c index 400df8c..d91751f 100644 --- a/drivers/staging/octeon/ethernet-rx.c +++ b/drivers/staging/octeon/ethernet-rx.c @@ -36,6 +36,7 @@ #include #include #include +#include #include #ifdef CONFIG_XFRM #include diff --git a/drivers/staging/octeon/ethernet-tx.c b/drivers/staging/octeon/ethernet-tx.c index 56d74dc..91a97b3 100644 --- a/drivers/staging/octeon/ethernet-tx.c +++ b/drivers/staging/octeon/ethernet-tx.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #ifdef CONFIG_XFRM #include diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c index 9112cd8..60cba81 100644 --- a/drivers/staging/octeon/ethernet.c +++ b/drivers/staging/octeon/ethernet.c @@ -31,6 +31,7 @@ #include #include #include +#include #include -- cgit v0.10.2 From 18ea1fcd7ef19e496c523d814d52261cc4777f51 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Sat, 21 Apr 2012 06:57:29 -0700 Subject: ARM: mini2440_defconfig: Fix build error This is needed to fix mini2440_defconfig after the platform files have been moved around. arm-none-linux-gnueabi-ld: no machine record defined arm-none-linux-gnueabi-ld: no machine record defined arm-none-linux-gnueabi-ld: no machine record defined make: *** [.tmp_vmlinux1] Error 1 Signed-off-by: Arnd Bergmann Signed-off-by: Kukjin Kim diff --git a/arch/arm/configs/mini2440_defconfig b/arch/arm/configs/mini2440_defconfig index 42da918..082175c 100644 --- a/arch/arm/configs/mini2440_defconfig +++ b/arch/arm/configs/mini2440_defconfig @@ -14,6 +14,8 @@ CONFIG_MODULE_FORCE_UNLOAD=y # CONFIG_BLK_DEV_BSG is not set CONFIG_BLK_DEV_INTEGRITY=y CONFIG_ARCH_S3C24XX=y +# CONFIG_CPU_S3C2410 is not set +CONFIG_CPU_S3C2440=y CONFIG_S3C_ADC=y CONFIG_S3C24XX_PWM=y CONFIG_MACH_MINI2440=y -- cgit v0.10.2 From 7518dde92c27f845a685cdc559c83c666cc01840 Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Sat, 21 Apr 2012 07:55:33 -0700 Subject: ARM: S3C24XX: Fix build warning for S3C2410_PM warning: (CPU_S3C2440 && CPU_S3C2442) selects S3C2410_PM which has unmet direct dependencies (ARCH_S3C24XX && CPU_S3C2410) warning: (CPU_S3C2440 && CPU_S3C2442) selects S3C2410_PM which has unmet direct dependencies (ARCH_S3C24XX && CPU_S3C2410) Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig index 0f3a327..b34287a 100644 --- a/arch/arm/mach-s3c24xx/Kconfig +++ b/arch/arm/mach-s3c24xx/Kconfig @@ -111,10 +111,6 @@ config S3C24XX_SETUP_TS help Compile in platform device definition for Samsung TouchScreen. -# cpu-specific sections - -if CPU_S3C2410 - config S3C2410_DMA bool depends on S3C24XX_DMA && (CPU_S3C2410 || CPU_S3C2442) @@ -127,6 +123,10 @@ config S3C2410_PM help Power Management code common to S3C2410 and better +# cpu-specific sections + +if CPU_S3C2410 + config S3C24XX_SIMTEC_NOR bool help -- cgit v0.10.2 From ffabec4ef7ad6ca9365d39f643b8a24c0fce04e7 Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Sat, 21 Apr 2012 08:31:38 -0700 Subject: ARM: EXYNOS: Fix resource on dev-dwmci.c Should be EXYNOS4_IRQ_DWMCI instead of IRQ_DWMCI, and use DEFINE_RES_{MEM,IRQ}. Reported-by: Jaehoon Chung Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-exynos/dev-dwmci.c b/arch/arm/mach-exynos/dev-dwmci.c index b025db4..7903501 100644 --- a/arch/arm/mach-exynos/dev-dwmci.c +++ b/arch/arm/mach-exynos/dev-dwmci.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include @@ -33,16 +34,8 @@ static int exynos4_dwmci_init(u32 slot_id, irq_handler_t handler, void *data) } static struct resource exynos4_dwmci_resource[] = { - [0] = { - .start = EXYNOS4_PA_DWMCI, - .end = EXYNOS4_PA_DWMCI + SZ_4K - 1, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_DWMCI, - .end = IRQ_DWMCI, - .flags = IORESOURCE_IRQ, - } + [0] = DEFINE_RES_MEM(EXYNOS4_PA_DWMCI, SZ_4K), + [1] = DEFINE_RES_IRQ(EXYNOS4_IRQ_DWMCI), }; static struct dw_mci_board exynos4_dwci_pdata = { -- cgit v0.10.2 From 6fff5a11fd07d7f918ac3737da4846558518c31d Mon Sep 17 00:00:00 2001 From: Tushar Behera Date: Tue, 24 Apr 2012 13:25:01 -0700 Subject: ARM: EXYNOS: Fix compilation error when CONFIG_OF is not defined Fixed following compile time error. arch/arm/mach-exynos/common.c: In function 'exynos5_init_irq': arch/arm/mach-exynos/common.c:539:2: error: implicit declaration of function 'of_irq_init' arch/arm/mach-exynos/common.c:539:14: error: 'exynos4_dt_irq_match' undeclared (first use in this function) arch/arm/mach-exynos/common.c:539:14: note: each undeclared identifier is reported only once for each function it appears in Cc: Thomas Abraham Signed-off-by: Tushar Behera Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c index 6c0e4f5..5ccd6e8 100644 --- a/arch/arm/mach-exynos/common.c +++ b/arch/arm/mach-exynos/common.c @@ -547,7 +547,9 @@ void __init exynos5_init_irq(void) { int irq; +#ifdef CONFIG_OF of_irq_init(exynos4_dt_irq_match); +#endif for (irq = 0; irq < EXYNOS5_MAX_COMBINER_NR; irq++) { combiner_init(irq, (void __iomem *)S5P_VA_COMBINER(irq), -- cgit v0.10.2 From 6f6543f53f9ce136e01d7114bf6f0818ca54fb41 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Tue, 24 Apr 2012 11:29:42 +0200 Subject: usb gadget: uvc: uvc_request_data::length field must be signed The field is used to pass the UVC request data length, but can also be used to signal an error when setting it to a negative value. Switch from unsigned int to __s32. Reported-by: Fernandez Gonzalo Signed-off-by: Laurent Pinchart Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/gadget/uvc.h b/drivers/usb/gadget/uvc.h index bc78c60..ca4e03a 100644 --- a/drivers/usb/gadget/uvc.h +++ b/drivers/usb/gadget/uvc.h @@ -28,7 +28,7 @@ struct uvc_request_data { - unsigned int length; + __s32 length; __u8 data[60]; }; diff --git a/drivers/usb/gadget/uvc_v4l2.c b/drivers/usb/gadget/uvc_v4l2.c index f6e083b..54d7ca5 100644 --- a/drivers/usb/gadget/uvc_v4l2.c +++ b/drivers/usb/gadget/uvc_v4l2.c @@ -39,7 +39,7 @@ uvc_send_response(struct uvc_device *uvc, struct uvc_request_data *data) if (data->length < 0) return usb_ep_set_halt(cdev->gadget->ep0); - req->length = min(uvc->event_length, data->length); + req->length = min_t(unsigned int, uvc->event_length, data->length); req->zero = data->length < uvc->event_length; req->dma = DMA_ADDR_INVALID; -- cgit v0.10.2 From 151b61284776be2d6f02d48c23c3625678960b97 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Tue, 24 Apr 2012 14:07:22 -0400 Subject: USB: EHCI: fix crash during suspend on ASUS computers This patch (as1545) fixes a problem affecting several ASUS computers: The machine crashes or corrupts memory when going into suspend if the ehci-hcd driver is bound to any controllers. Users have been forced to unbind or unload ehci-hcd before putting their systems to sleep. After extensive testing, it was determined that the machines don't like going into suspend when any EHCI controllers are in the PCI D3 power state. Presumably this is a firmware bug, but there's nothing we can do about it except to avoid putting the controllers in D3 during system sleep. The patch adds a new flag to indicate whether the problem is present, and avoids changing the controller's power state if the flag is set. Runtime suspend is unaffected; this matters only for system suspend. However as a side effect, the controller will not respond to remote wakeup requests while the system is asleep. Hence USB wakeup is not functional -- but of course, this is already true in the current state of affairs. This fixes Bugzilla #42728. Signed-off-by: Alan Stern Tested-by: Steven Rostedt Tested-by: Andrey Rahmatullin Tested-by: Oleksij Rempel (fishor) Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c index 622b4a4..57ed9e4 100644 --- a/drivers/usb/core/hcd-pci.c +++ b/drivers/usb/core/hcd-pci.c @@ -493,6 +493,15 @@ static int hcd_pci_suspend_noirq(struct device *dev) pci_save_state(pci_dev); + /* + * Some systems crash if an EHCI controller is in D3 during + * a sleep transition. We have to leave such controllers in D0. + */ + if (hcd->broken_pci_sleep) { + dev_dbg(dev, "Staying in PCI D0\n"); + return retval; + } + /* If the root hub is dead rather than suspended, disallow remote * wakeup. usb_hc_died() should ensure that both hosts are marked as * dying, so we only need to check the primary roothub. diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index 01bb7241d..fe8dc06 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -144,6 +144,14 @@ static int ehci_pci_setup(struct usb_hcd *hcd) hcd->has_tt = 1; tdi_reset(ehci); } + if (pdev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK) { + /* EHCI #1 or #2 on 6 Series/C200 Series chipset */ + if (pdev->device == 0x1c26 || pdev->device == 0x1c2d) { + ehci_info(ehci, "broken D3 during system sleep on ASUS\n"); + hcd->broken_pci_sleep = 1; + device_set_wakeup_capable(&pdev->dev, false); + } + } break; case PCI_VENDOR_ID_TDI: if (pdev->device == PCI_DEVICE_ID_TDI_EHCI) { diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h index 5de4157..d28cc78 100644 --- a/include/linux/usb/hcd.h +++ b/include/linux/usb/hcd.h @@ -126,6 +126,8 @@ struct usb_hcd { unsigned wireless:1; /* Wireless USB HCD */ unsigned authorized_default:1; unsigned has_tt:1; /* Integrated TT in root hub */ + unsigned broken_pci_sleep:1; /* Don't put the + controller in PCI-D3 for system sleep */ unsigned int irq; /* irq allocated */ void __iomem *regs; /* device memory/io */ -- cgit v0.10.2 From f8262d476823a7ea1eb497ff9676d1eab2393c75 Mon Sep 17 00:00:00 2001 From: Bojan Smojver Date: Tue, 24 Apr 2012 23:53:28 +0200 Subject: PM / Hibernate: fix the number of pages used for hibernate/thaw buffering Hibernation regression fix, since 3.2. Calculate the number of required free pages based on non-high memory pages only, because that is where the buffers will come from. Commit 081a9d043c983f161b78fdc4671324d1342b86bc introduced a new buffer page allocation logic during hibernation, in order to improve the performance. The amount of pages allocated was calculated based on total amount of pages available, although only non-high memory pages are usable for this purpose. This caused hibernation code to attempt to over allocate pages on platforms that have high memory, which led to hangs. Signed-off-by: Bojan Smojver Signed-off-by: Rafael J. Wysocki diff --git a/kernel/power/swap.c b/kernel/power/swap.c index 8742fd0..eef311a 100644 --- a/kernel/power/swap.c +++ b/kernel/power/swap.c @@ -51,6 +51,23 @@ #define MAP_PAGE_ENTRIES (PAGE_SIZE / sizeof(sector_t) - 1) +/* + * Number of free pages that are not high. + */ +static inline unsigned long low_free_pages(void) +{ + return nr_free_pages() - nr_free_highpages(); +} + +/* + * Number of pages required to be kept free while writing the image. Always + * half of all available low pages before the writing starts. + */ +static inline unsigned long reqd_free_pages(void) +{ + return low_free_pages() / 2; +} + struct swap_map_page { sector_t entries[MAP_PAGE_ENTRIES]; sector_t next_swap; @@ -72,7 +89,7 @@ struct swap_map_handle { sector_t cur_swap; sector_t first_sector; unsigned int k; - unsigned long nr_free_pages, written; + unsigned long reqd_free_pages; u32 crc32; }; @@ -316,8 +333,7 @@ static int get_swap_writer(struct swap_map_handle *handle) goto err_rel; } handle->k = 0; - handle->nr_free_pages = nr_free_pages() >> 1; - handle->written = 0; + handle->reqd_free_pages = reqd_free_pages(); handle->first_sector = handle->cur_swap; return 0; err_rel: @@ -352,11 +368,11 @@ static int swap_write_page(struct swap_map_handle *handle, void *buf, handle->cur_swap = offset; handle->k = 0; } - if (bio_chain && ++handle->written > handle->nr_free_pages) { + if (bio_chain && low_free_pages() <= handle->reqd_free_pages) { error = hib_wait_on_bio_chain(bio_chain); if (error) goto out; - handle->written = 0; + handle->reqd_free_pages = reqd_free_pages(); } out: return error; @@ -618,7 +634,7 @@ static int save_image_lzo(struct swap_map_handle *handle, * Adjust number of free pages after all allocations have been done. * We don't want to run out of pages when writing. */ - handle->nr_free_pages = nr_free_pages() >> 1; + handle->reqd_free_pages = reqd_free_pages(); /* * Start the CRC32 thread. -- cgit v0.10.2 From 840777de530ae96ee9a3022f7ec1d6c65abb26ac Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Tue, 24 Apr 2012 16:06:50 -0700 Subject: IB/mad: Set 'D' bit in response for unhandled MADs Commit 0b307043049f ("IB/mad: Return error response for unsupported MADs") does not handle directed-route MADs properly -- it fails to set the 'D' bit in the response MAD status field. This is a problem for SmInfo MADs when the receiver does not have an SM running. Reviewed-by: Hal Rosenstock Signed-off-by: Jack Morgenstein Signed-off-by: Roland Dreier diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c index 426bb76..1c73d8a 100644 --- a/drivers/infiniband/core/mad.c +++ b/drivers/infiniband/core/mad.c @@ -1854,6 +1854,8 @@ static bool generate_unmatched_resp(struct ib_mad_private *recv, response->mad.mad.mad_hdr.method = IB_MGMT_METHOD_GET_RESP; response->mad.mad.mad_hdr.status = cpu_to_be16(IB_MGMT_MAD_STATUS_UNSUPPORTED_METHOD_ATTRIB); + if (recv->mad.mad.mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) + response->mad.mad.mad_hdr.status |= IB_SMP_DIRECTION; return true; } else { -- cgit v0.10.2 From a9e7432319eb26ad90f18a7d215e50341d28ecb2 Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Tue, 24 Apr 2012 16:08:57 -0700 Subject: IB/mad: Don't send response for failed MADs Commit 0b307043049f ("IB/mad: Return error response for unsupported MADs") does not failed MADs (eg those that return IB_MAD_RESULT_FAILURE) properly -- these MADs should be silently discarded. (We should not force the lower-layer drivers to return SUCCESS | CONSUMED in this case, since the MAD is NOT successful). Unsupported MADs are not failures -- they return SUCCESS, but with an "unsupported error" status value inside the response MAD. Reviewed-by: Hal Rosenstock Signed-off-by: Jack Morgenstein Signed-off-by: Roland Dreier diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c index 1c73d8a..b0d0bc8 100644 --- a/drivers/infiniband/core/mad.c +++ b/drivers/infiniband/core/mad.c @@ -1871,6 +1871,7 @@ static void ib_mad_recv_done_handler(struct ib_mad_port_private *port_priv, struct ib_mad_list_head *mad_list; struct ib_mad_agent_private *mad_agent; int port_num; + int ret = IB_MAD_RESULT_SUCCESS; mad_list = (struct ib_mad_list_head *)(unsigned long)wc->wr_id; qp_info = mad_list->mad_queue->qp_info; @@ -1954,8 +1955,6 @@ static void ib_mad_recv_done_handler(struct ib_mad_port_private *port_priv, local: /* Give driver "right of first refusal" on incoming MAD */ if (port_priv->device->process_mad) { - int ret; - ret = port_priv->device->process_mad(port_priv->device, 0, port_priv->port_num, wc, &recv->grh, @@ -1983,7 +1982,8 @@ local: * or via recv_handler in ib_mad_complete_recv() */ recv = NULL; - } else if (generate_unmatched_resp(recv, response)) { + } else if ((ret & IB_MAD_RESULT_SUCCESS) && + generate_unmatched_resp(recv, response)) { agent_send_response(&response->mad.mad, &recv->grh, wc, port_priv->device, port_num, qp_info->qp->qp_num); } -- cgit v0.10.2 From bf6b47deb40f9fc8ddb4573373dc9614aab59d35 Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Wed, 11 Apr 2012 23:43:29 +0200 Subject: IB/mlx4: Fix memory leaks in ib_link_query_port() If the call to mlx4_MAD_IFC() fails in ib_link_query_port() we will currently do 'return err;' which will leak 'in_mad' and 'out_mad'. We should instead do 'goto out;' where we'll properly free the memory we previously allocated. Signed-off-by: Jesper Juhl Acked-by: Or Gerlitz Signed-off-by: Roland Dreier diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 75d3056..cc88c9c 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -247,7 +247,7 @@ static int ib_link_query_port(struct ib_device *ibdev, u8 port, err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); if (err) - return err; + goto out; /* Checking LinkSpeedActive for FDR-10 */ if (out_mad->data[15] & 0x1) -- cgit v0.10.2 From 9b4d1cbb1391ae603c20cbf8c0beb66e38397196 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Tue, 24 Apr 2012 17:28:12 -0700 Subject: ARM: SAMSUNG: add missing MMC_CAP2_BROKEN_VOLTAGE capability Commit 6e8201f57c935 "mmc: core: add the capability for broken voltage" introduced a new quirk to indicate that MMC core should ignore voltage change errors reported by the regulators core. This is required to get SDHCI working on UniversalC210, NURI and GONI boards again after commit ceb6143b2df81c ("mmc: sdhci: fix vmmc handling"). Signed-off-by: Marek Szyprowski Signed-off-by: Kyungmin Park Signed-off-by: Kukjin Kim diff --git a/arch/arm/mach-exynos/mach-nuri.c b/arch/arm/mach-exynos/mach-nuri.c index b4f1f90..ed90aef 100644 --- a/arch/arm/mach-exynos/mach-nuri.c +++ b/arch/arm/mach-exynos/mach-nuri.c @@ -112,6 +112,7 @@ static struct s3c_sdhci_platdata nuri_hsmmc0_data __initdata = { .host_caps = (MMC_CAP_8_BIT_DATA | MMC_CAP_4_BIT_DATA | MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED | MMC_CAP_ERASE), + .host_caps2 = MMC_CAP2_BROKEN_VOLTAGE, .cd_type = S3C_SDHCI_CD_PERMANENT, .clk_type = S3C_SDHCI_CLK_DIV_EXTERNAL, }; diff --git a/arch/arm/mach-exynos/mach-universal_c210.c b/arch/arm/mach-exynos/mach-universal_c210.c index 7ebf79c..cb2b027 100644 --- a/arch/arm/mach-exynos/mach-universal_c210.c +++ b/arch/arm/mach-exynos/mach-universal_c210.c @@ -747,6 +747,7 @@ static struct s3c_sdhci_platdata universal_hsmmc0_data __initdata = { .max_width = 8, .host_caps = (MMC_CAP_8_BIT_DATA | MMC_CAP_4_BIT_DATA | MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED), + .host_caps2 = MMC_CAP2_BROKEN_VOLTAGE, .cd_type = S3C_SDHCI_CD_PERMANENT, .clk_type = S3C_SDHCI_CLK_DIV_EXTERNAL, }; diff --git a/arch/arm/mach-s5pv210/mach-goni.c b/arch/arm/mach-s5pv210/mach-goni.c index a8933de..3239566 100644 --- a/arch/arm/mach-s5pv210/mach-goni.c +++ b/arch/arm/mach-s5pv210/mach-goni.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include @@ -765,6 +766,7 @@ static void __init goni_pmic_init(void) /* MoviNAND */ static struct s3c_sdhci_platdata goni_hsmmc0_data __initdata = { .max_width = 4, + .host_caps2 = MMC_CAP2_BROKEN_VOLTAGE, .cd_type = S3C_SDHCI_CD_PERMANENT, }; -- cgit v0.10.2 From 569a3aff70e880588fe4b3f1622ac60abbeb4a28 Mon Sep 17 00:00:00 2001 From: Prasanna S Panchamukhi Date: Thu, 19 Apr 2012 17:01:00 +0000 Subject: e1000e: MSI interrupt test failed, using legacy interrupt Following logs where seen on Systems with multiple NICs, while using MSI interrupts as shown below: Feb 16 15:09:32 (none) user.notice kernel: 0000:00:0d.0: lan0_0: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX Feb 16 15:09:32 (none) user.notice kernel: 0000:40:0d.0: wan0_1: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX Feb 16 15:09:32 (none) user.notice kernel: 0000:40:0d.0: lan0_1: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX Feb 16 15:09:32 (none) user.warn kernel: 0000:40:0e.0: wan4_0: MSI interrupt test failed, using legacy interrupt. Feb 16 15:09:32 (none) user.notice kernel: 0000:00:0e.0: wan1_0: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX Feb 16 15:09:33 (none) user.notice kernel: 0000:00:0e.0: lan1_0: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX Feb 16 15:09:33 (none) user.notice kernel: 0000:00:0f.0: wan2_0: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX Feb 16 15:09:33 (none) user.notice kernel: 0000:00:0f.0: lan2_0: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX Feb 16 15:09:33 (none) user.notice kernel: 0000:40:0a.0: wan3_0: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX Feb 16 15:09:33 (none) user.notice kernel: 0000:40:0a.0: lan3_0: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX Feb 16 15:09:34 (none) user.notice kernel: 0000:40:0e.0: lan4_0: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX Feb 16 15:09:34 (none) user.notice kernel: 0000:40:0f.0: wan5_0: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX Feb 16 15:09:34 (none) user.notice kernel: 0000:40:0f.0: lan5_0: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX This patch fixes this problem by increasing the msleep from 50 to 100. Signed-off-by: Prasanna S Panchamukhi Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index 19ab215..9520a6a 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -3799,7 +3799,7 @@ static int e1000_test_msi_interrupt(struct e1000_adapter *adapter) /* fire an unusual interrupt on the test handler */ ew32(ICS, E1000_ICS_RXSEQ); e1e_flush(); - msleep(50); + msleep(100); e1000_irq_disable(adapter); -- cgit v0.10.2 From 727c356f4d799b53f94cf8fe43e19d64482348c7 Mon Sep 17 00:00:00 2001 From: Jeff Kirsher Date: Fri, 20 Apr 2012 08:51:45 +0000 Subject: e1000e: Fix default interrupt throttle rate not set in NIC HW Based on the original patch from Ying Cai This change ensures that the itr/itr_setting adjustment logic is used, even for the default/compiled-in value. Context: When we changed the default InterruptThrottleRate value from default (3 = dynamic mode) to 8000 for example, only adapter->itr_setting (which controls interrupt coalescing mode) was set to 8000, but adapter->itr (which controls the value set in NIC register) was not updated accordingly. So from ethtool, it seemed the interrupt throttling is enabled at 8000 intr/s, but the NIC actually was running in dynamic mode which has lower CPU efficiency especially when throughput is not high. CC: Ying Cai CC: David Decotigny Signed-off-by: Jeff Kirsher Tested-by: Aaron Brown diff --git a/drivers/net/ethernet/intel/e1000e/param.c b/drivers/net/ethernet/intel/e1000e/param.c index ff796e4..16adeb9 100644 --- a/drivers/net/ethernet/intel/e1000e/param.c +++ b/drivers/net/ethernet/intel/e1000e/param.c @@ -106,7 +106,7 @@ E1000_PARAM(RxAbsIntDelay, "Receive Absolute Interrupt Delay"); /* * Interrupt Throttle Rate (interrupts/sec) * - * Valid Range: 100-100000 (0=off, 1=dynamic, 3=dynamic conservative) + * Valid Range: 100-100000 or one of: 0=off, 1=dynamic, 3=dynamic conservative */ E1000_PARAM(InterruptThrottleRate, "Interrupt Throttling Rate"); #define DEFAULT_ITR 3 @@ -344,53 +344,60 @@ void __devinit e1000e_check_options(struct e1000_adapter *adapter) if (num_InterruptThrottleRate > bd) { adapter->itr = InterruptThrottleRate[bd]; - switch (adapter->itr) { - case 0: - e_info("%s turned off\n", opt.name); - break; - case 1: - e_info("%s set to dynamic mode\n", opt.name); - adapter->itr_setting = adapter->itr; - adapter->itr = 20000; - break; - case 3: - e_info("%s set to dynamic conservative mode\n", - opt.name); - adapter->itr_setting = adapter->itr; - adapter->itr = 20000; - break; - case 4: - e_info("%s set to simplified (2000-8000 ints) " - "mode\n", opt.name); - adapter->itr_setting = 4; - break; - default: - /* - * Save the setting, because the dynamic bits - * change itr. - */ - if (e1000_validate_option(&adapter->itr, &opt, - adapter) && - (adapter->itr == 3)) { - /* - * In case of invalid user value, - * default to conservative mode. - */ - adapter->itr_setting = adapter->itr; - adapter->itr = 20000; - } else { - /* - * Clear the lower two bits because - * they are used as control. - */ - adapter->itr_setting = - adapter->itr & ~3; - } - break; - } + + /* + * Make sure a message is printed for non-special + * values. And in case of an invalid option, display + * warning, use default and got through itr/itr_setting + * adjustment logic below + */ + if ((adapter->itr > 4) && + e1000_validate_option(&adapter->itr, &opt, adapter)) + adapter->itr = opt.def; } else { - adapter->itr_setting = opt.def; + /* + * If no option specified, use default value and go + * through the logic below to adjust itr/itr_setting + */ + adapter->itr = opt.def; + + /* + * Make sure a message is printed for non-special + * default values + */ + if (adapter->itr > 40) + e_info("%s set to default %d\n", opt.name, + adapter->itr); + } + + adapter->itr_setting = adapter->itr; + switch (adapter->itr) { + case 0: + e_info("%s turned off\n", opt.name); + break; + case 1: + e_info("%s set to dynamic mode\n", opt.name); + adapter->itr = 20000; + break; + case 3: + e_info("%s set to dynamic conservative mode\n", + opt.name); adapter->itr = 20000; + break; + case 4: + e_info("%s set to simplified (2000-8000 ints) mode\n", + opt.name); + break; + default: + /* + * Save the setting, because the dynamic bits + * change itr. + * + * Clear the lower two bits because + * they are used as control. + */ + adapter->itr_setting &= ~3; + break; } } { /* Interrupt Mode */ -- cgit v0.10.2 From 93f90e5186053611fe93d889e99ee2852f4da250 Mon Sep 17 00:00:00 2001 From: Vasu Dev Date: Fri, 6 Apr 2012 15:52:51 -0700 Subject: [SCSI] libfc: update mfs boundry checking A previous commit changed the mfs checking to ensure the new mfs is less or equal to the mfs supported by the FCF. This doesn't work for BRDCM cards as they set an mfs of 2048 regardless of whether the switch returns a larger mfs. This patch validates the new mfs against the upper and lower spec defined boundries for a FCoE mfs. Signed-off-by: Vasu Dev Signed-off-by: Bhanu Prakash Gollapudi Signed-off-by: Robert Love Signed-off-by: James Bottomley diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c index ef9560d..cc83b66 100644 --- a/drivers/scsi/libfc/fc_lport.c +++ b/drivers/scsi/libfc/fc_lport.c @@ -1742,17 +1742,19 @@ void fc_lport_flogi_resp(struct fc_seq *sp, struct fc_frame *fp, mfs = ntohs(flp->fl_csp.sp_bb_data) & FC_SP_BB_DATA_MASK; - if (mfs >= FC_SP_MIN_MAX_PAYLOAD && - mfs <= lport->mfs) { - lport->mfs = mfs; - fc_host_maxframe_size(lport->host) = mfs; - } else { + + if (mfs < FC_SP_MIN_MAX_PAYLOAD || mfs > FC_SP_MAX_MAX_PAYLOAD) { FC_LPORT_DBG(lport, "FLOGI bad mfs:%hu response, " "lport->mfs:%hu\n", mfs, lport->mfs); fc_lport_error(lport, fp); goto err; } + if (mfs <= lport->mfs) { + lport->mfs = mfs; + fc_host_maxframe_size(lport->host) = mfs; + } + csp_flags = ntohs(flp->fl_csp.sp_features); r_a_tov = ntohl(flp->fl_csp.sp_r_a_tov); e_d_tov = ntohl(flp->fl_csp.sp_e_d_tov); -- cgit v0.10.2 From 7118c07a844d367560ee91adb2071bde2fabcdbf Mon Sep 17 00:00:00 2001 From: Sasha Levin Date: Sat, 14 Apr 2012 12:37:46 -0400 Subject: ipvs: Verify that IP_VS protocol has been registered The registration of a protocol might fail, there were no checks and all registrations were assumed to be correct. This lead to NULL ptr dereferences when apps tried registering. For example: [ 1293.226051] BUG: unable to handle kernel NULL pointer dereference at 0000000000000018 [ 1293.227038] IP: [] tcp_register_app+0x60/0xb0 [ 1293.227038] PGD 391de067 PUD 6c20b067 PMD 0 [ 1293.227038] Oops: 0000 [#1] PREEMPT SMP [ 1293.227038] CPU 1 [ 1293.227038] Pid: 19609, comm: trinity Tainted: G W 3.4.0-rc1-next-20120405-sasha-dirty #57 [ 1293.227038] RIP: 0010:[] [] tcp_register_app+0x60/0xb0 [ 1293.227038] RSP: 0018:ffff880038c1dd18 EFLAGS: 00010286 [ 1293.227038] RAX: ffffffffffffffc0 RBX: 0000000000001500 RCX: 0000000000010000 [ 1293.227038] RDX: 0000000000000000 RSI: ffff88003a2d5888 RDI: 0000000000000282 [ 1293.227038] RBP: ffff880038c1dd48 R08: 0000000000000000 R09: 0000000000000000 [ 1293.227038] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88003a2d5668 [ 1293.227038] R13: ffff88003a2d5988 R14: ffff8800696a8ff8 R15: 0000000000000000 [ 1293.227038] FS: 00007f01930d9700(0000) GS:ffff88007ce00000(0000) knlGS:0000000000000000 [ 1293.227038] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 1293.227038] CR2: 0000000000000018 CR3: 0000000065dfc000 CR4: 00000000000406e0 [ 1293.227038] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1293.227038] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 1293.227038] Process trinity (pid: 19609, threadinfo ffff880038c1c000, task ffff88002dc73000) [ 1293.227038] Stack: [ 1293.227038] ffff880038c1dd48 00000000fffffff4 ffff8800696aada0 ffff8800694f5580 [ 1293.227038] ffffffff8369f1e0 0000000000001500 ffff880038c1dd98 ffffffff822a716b [ 1293.227038] 0000000000000000 ffff8800696a8ff8 0000000000000015 ffff8800694f5580 [ 1293.227038] Call Trace: [ 1293.227038] [] ip_vs_app_inc_new+0xdb/0x180 [ 1293.227038] [] register_ip_vs_app_inc+0x48/0x70 [ 1293.227038] [] __ip_vs_ftp_init+0xba/0x140 [ 1293.227038] [] ops_init+0x80/0x90 [ 1293.227038] [] setup_net+0x5b/0xe0 [ 1293.227038] [] copy_net_ns+0x76/0x100 [ 1293.227038] [] create_new_namespaces+0xfb/0x190 [ 1293.227038] [] unshare_nsproxy_namespaces+0x61/0x80 [ 1293.227038] [] sys_unshare+0xff/0x290 [ 1293.227038] [] ? trace_hardirqs_on_thunk+0x3a/0x3f [ 1293.227038] [] system_call_fastpath+0x16/0x1b [ 1293.227038] Code: 89 c7 e8 34 91 3b 00 89 de 66 c1 ee 04 31 de 83 e6 0f 48 83 c6 22 48 c1 e6 04 4a 8b 14 26 49 8d 34 34 48 8d 42 c0 48 39 d6 74 13 <66> 39 58 58 74 22 48 8b 48 40 48 8d 41 c0 48 39 ce 75 ed 49 8d [ 1293.227038] RIP [] tcp_register_app+0x60/0xb0 [ 1293.227038] RSP [ 1293.227038] CR2: 0000000000000018 [ 1293.379284] ---[ end trace 364ab40c7011a009 ]--- [ 1293.381182] Kernel panic - not syncing: Fatal exception in interrupt Signed-off-by: Sasha Levin Acked-by: Julian Anastasov Signed-off-by: Simon Horman Signed-off-by: Pablo Neira Ayuso diff --git a/net/netfilter/ipvs/ip_vs_proto.c b/net/netfilter/ipvs/ip_vs_proto.c index f843a88..a62360e 100644 --- a/net/netfilter/ipvs/ip_vs_proto.c +++ b/net/netfilter/ipvs/ip_vs_proto.c @@ -59,9 +59,6 @@ static int __used __init register_ip_vs_protocol(struct ip_vs_protocol *pp) return 0; } -#if defined(CONFIG_IP_VS_PROTO_TCP) || defined(CONFIG_IP_VS_PROTO_UDP) || \ - defined(CONFIG_IP_VS_PROTO_SCTP) || defined(CONFIG_IP_VS_PROTO_AH) || \ - defined(CONFIG_IP_VS_PROTO_ESP) /* * register an ipvs protocols netns related data */ @@ -86,7 +83,6 @@ register_ip_vs_proto_netns(struct net *net, struct ip_vs_protocol *pp) return 0; } -#endif /* * unregister an ipvs protocol @@ -316,22 +312,35 @@ ip_vs_tcpudp_debug_packet(int af, struct ip_vs_protocol *pp, */ int __net_init ip_vs_protocol_net_init(struct net *net) { + int i, ret; + static struct ip_vs_protocol *protos[] = { #ifdef CONFIG_IP_VS_PROTO_TCP - register_ip_vs_proto_netns(net, &ip_vs_protocol_tcp); + &ip_vs_protocol_tcp, #endif #ifdef CONFIG_IP_VS_PROTO_UDP - register_ip_vs_proto_netns(net, &ip_vs_protocol_udp); + &ip_vs_protocol_udp, #endif #ifdef CONFIG_IP_VS_PROTO_SCTP - register_ip_vs_proto_netns(net, &ip_vs_protocol_sctp); + &ip_vs_protocol_sctp, #endif #ifdef CONFIG_IP_VS_PROTO_AH - register_ip_vs_proto_netns(net, &ip_vs_protocol_ah); + &ip_vs_protocol_ah, #endif #ifdef CONFIG_IP_VS_PROTO_ESP - register_ip_vs_proto_netns(net, &ip_vs_protocol_esp); + &ip_vs_protocol_esp, #endif + }; + + for (i = 0; i < ARRAY_SIZE(protos); i++) { + ret = register_ip_vs_proto_netns(net, protos[i]); + if (ret < 0) + goto cleanup; + } return 0; + +cleanup: + ip_vs_protocol_net_cleanup(net); + return ret; } void __net_exit ip_vs_protocol_net_cleanup(struct net *net) -- cgit v0.10.2 From 8f9b9a2fad47af27e14b037395e03cd8278d96d7 Mon Sep 17 00:00:00 2001 From: Julian Anastasov Date: Fri, 13 Apr 2012 18:08:43 +0300 Subject: ipvs: fix crash in ip_vs_control_net_cleanup on unload commit 14e405461e664b777e2a5636e10b2ebf36a686ec (2.6.39) ("Add __ip_vs_control_{init,cleanup}_sysctl()") introduced regression due to wrong __net_init for __ip_vs_control_cleanup_sysctl. This leads to crash when the ip_vs module is unloaded. Fix it by changing __net_init to __net_exit for the function that is already renamed to ip_vs_control_net_cleanup_sysctl. Signed-off-by: Julian Anastasov Signed-off-by: Hans Schillstrom Signed-off-by: Simon Horman Signed-off-by: Pablo Neira Ayuso diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c index b3afe18..376d2b1 100644 --- a/net/netfilter/ipvs/ip_vs_ctl.c +++ b/net/netfilter/ipvs/ip_vs_ctl.c @@ -3680,7 +3680,7 @@ int __net_init ip_vs_control_net_init_sysctl(struct net *net) return 0; } -void __net_init ip_vs_control_net_cleanup_sysctl(struct net *net) +void __net_exit ip_vs_control_net_cleanup_sysctl(struct net *net) { struct netns_ipvs *ipvs = net_ipvs(net); @@ -3692,7 +3692,7 @@ void __net_init ip_vs_control_net_cleanup_sysctl(struct net *net) #else int __net_init ip_vs_control_net_init_sysctl(struct net *net) { return 0; } -void __net_init ip_vs_control_net_cleanup_sysctl(struct net *net) { } +void __net_exit ip_vs_control_net_cleanup_sysctl(struct net *net) { } #endif -- cgit v0.10.2 From c847382838ca503b6c55fb599160146221a2c141 Mon Sep 17 00:00:00 2001 From: Olof Johansson Date: Sun, 8 Apr 2012 16:26:19 -0700 Subject: dma: pl330: fix a couple of compilation warnings Move a couple of tests and do a minor refactor to avoid: drivers/dma/pl330.c: In function 'pl330_probe': drivers/dma/pl330.c:2929:215: warning: comparison of distinct pointer types lacks a cast [enabled by default] drivers/dma/pl330.c: In function 'pl330_tasklet': drivers/dma/pl330.c:2250:8: warning: 'pch' may be used uninitialized in this function [-Wuninitialized] drivers/dma/pl330.c:2228:25: note: 'pch' was declared here drivers/dma/pl330.c:2277:130: warning: 'pch' may be used uninitialized in this function [-Wuninitialized] drivers/dma/pl330.c:2260:25: note: 'pch' was declared here Signed-off-by: Olof Johansson Signed-off-by: Vinod Koul diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 282caf1..2ee6e23 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -2225,12 +2225,9 @@ static inline void free_desc_list(struct list_head *list) { struct dma_pl330_dmac *pdmac; struct dma_pl330_desc *desc; - struct dma_pl330_chan *pch; + struct dma_pl330_chan *pch = NULL; unsigned long flags; - if (list_empty(list)) - return; - /* Finish off the work list */ list_for_each_entry(desc, list, node) { dma_async_tx_callback callback; @@ -2247,6 +2244,10 @@ static inline void free_desc_list(struct list_head *list) desc->pchan = NULL; } + /* pch will be unset if list was empty */ + if (!pch) + return; + pdmac = pch->dmac; spin_lock_irqsave(&pdmac->pool_lock, flags); @@ -2257,12 +2258,9 @@ static inline void free_desc_list(struct list_head *list) static inline void handle_cyclic_desc_list(struct list_head *list) { struct dma_pl330_desc *desc; - struct dma_pl330_chan *pch; + struct dma_pl330_chan *pch = NULL; unsigned long flags; - if (list_empty(list)) - return; - list_for_each_entry(desc, list, node) { dma_async_tx_callback callback; @@ -2274,6 +2272,10 @@ static inline void handle_cyclic_desc_list(struct list_head *list) callback(desc->txd.callback_param); } + /* pch will be unset if list was empty */ + if (!pch) + return; + spin_lock_irqsave(&pch->lock, flags); list_splice_tail_init(list, &pch->work_list); spin_unlock_irqrestore(&pch->lock, flags); @@ -2926,8 +2928,11 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id) INIT_LIST_HEAD(&pd->channels); /* Initialize channel parameters */ - num_chan = max(pdat ? pdat->nr_valid_peri : (u8)pi->pcfg.num_peri, - (u8)pi->pcfg.num_chan); + if (pdat) + num_chan = max_t(int, pdat->nr_valid_peri, pi->pcfg.num_chan); + else + num_chan = max_t(int, pi->pcfg.num_peri, pi->pcfg.num_chan); + pdmac->peripherals = kzalloc(num_chan * sizeof(*pch), GFP_KERNEL); for (i = 0; i < num_chan; i++) { -- cgit v0.10.2 From 88c08a3fba9954ce0ec3e1eab07c498a419ad7e3 Mon Sep 17 00:00:00 2001 From: Davide Ciminaghi Date: Thu, 19 Apr 2012 12:20:24 +0200 Subject: dmaengine/amba-pl08x : reset phychan_hold on terminate all When a client calls pl08x_control with DMA_TERMINATE_ALL, it is correct to terminate and release the phy channel currently in use (if one is in use), but the phychan_hold counter must also be reset (otherwise it could get trapped in an unbalanced state). Signed-off-by: Davide Ciminaghi Reviewed-by: Viresh Kumar Acked-by: Linus Walleij Signed-off-by: Vinod Koul diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index c301a8e..3d704ab 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -1429,6 +1429,7 @@ static int pl08x_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, * signal */ release_phy_channel(plchan); + plchan->phychan_hold = 0; } /* Dequeue jobs and free LLIs */ if (plchan->at) { -- cgit v0.10.2 From a3a53fe1545a87337cc539f415810128bbdad465 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Wed, 25 Apr 2012 11:29:47 +0200 Subject: ASoC: bf5xx-ssm2602: Set DAI format Commit 980b0bc69 ("ASoC: blackfin: Use dai_fmt") converted the blackfin ASoC machine drivers to use the dai_links dai_fmt field to setup their DAI format. For the bf5xx-ssm2602 the commit removed the manual call to snd_soc_dai_set_fmt, but missed to set the dai_links dai_fmt field. Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown diff --git a/sound/soc/blackfin/bf5xx-ssm2602.c b/sound/soc/blackfin/bf5xx-ssm2602.c index df3ac73..b39ad35 100644 --- a/sound/soc/blackfin/bf5xx-ssm2602.c +++ b/sound/soc/blackfin/bf5xx-ssm2602.c @@ -99,6 +99,7 @@ static struct snd_soc_dai_link bf5xx_ssm2602_dai[] = { .platform_name = "bfin-i2s-pcm-audio", .codec_name = "ssm2602.0-001b", .ops = &bf5xx_ssm2602_ops, + .dai_fmt = BF5XX_SSM2602_DAIFMT, }, { .name = "ssm2602", @@ -108,6 +109,7 @@ static struct snd_soc_dai_link bf5xx_ssm2602_dai[] = { .platform_name = "bfin-i2s-pcm-audio", .codec_name = "ssm2602.0-001b", .ops = &bf5xx_ssm2602_ops, + .dai_fmt = BF5XX_SSM2602_DAIFMT, }, }; -- cgit v0.10.2 From d0d3bc65afcdd69bdd3b5bebdf8b3ee3680efa0e Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 24 Apr 2012 15:00:53 -0700 Subject: x86/mrst: Quiet sparse noise about plain integer as NULL pointer The second parameter to intel_scu_notifier_post is a void *, not an integer. This quiets the sparse noise: arch/x86/platform/mrst/mrst.c:808:48: warning: Using plain integer as NULL pointer arch/x86/platform/mrst/mrst.c:817:43: warning: Using plain integer as NULL pointer Signed-off-by: H Hartley Sweeten Acked-by: Alan Cox Link: http://lkml.kernel.org/r/201204241500.53685.hartleys@visionengravers.com Signed-off-by: Ingo Molnar diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c index e0a3723..e31bcd8 100644 --- a/arch/x86/platform/mrst/mrst.c +++ b/arch/x86/platform/mrst/mrst.c @@ -805,7 +805,7 @@ void intel_scu_devices_create(void) } else i2c_register_board_info(i2c_bus[i], i2c_devs[i], 1); } - intel_scu_notifier_post(SCU_AVAILABLE, 0L); + intel_scu_notifier_post(SCU_AVAILABLE, NULL); } EXPORT_SYMBOL_GPL(intel_scu_devices_create); @@ -814,7 +814,7 @@ void intel_scu_devices_destroy(void) { int i; - intel_scu_notifier_post(SCU_DOWN, 0L); + intel_scu_notifier_post(SCU_DOWN, NULL); for (i = 0; i < ipc_next_dev; i++) platform_device_del(ipc_devs[i]); -- cgit v0.10.2 From ea0dcf903e7d76aa5d483d876215fedcfdfe140f Mon Sep 17 00:00:00 2001 From: Greg Pearson Date: Tue, 24 Apr 2012 18:23:56 -0600 Subject: x86/apic: Use x2apic physical mode based on FADT setting Provide systems that do not support x2apic cluster mode a mechanism to select x2apic physical mode using the FADT FORCE_APIC_PHYSICAL_DESTINATION_MODE bit. Changes from v1: (based on Suresh's comments) - removed #ifdef CONFIG_ACPI - removed #include Signed-off-by: Greg Pearson Acked-by: Suresh Siddha Link: http://lkml.kernel.org/r/1335313436-32020-1-git-send-email-greg.pearson@hp.com Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c index 8a778db..991e315 100644 --- a/arch/x86/kernel/apic/x2apic_phys.c +++ b/arch/x86/kernel/apic/x2apic_phys.c @@ -24,6 +24,12 @@ static int x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id) { if (x2apic_phys) return x2apic_enabled(); + else if ((acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID) && + (acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL) && + x2apic_enabled()) { + printk(KERN_DEBUG "System requires x2apic physical mode\n"); + return 1; + } else return 0; } -- cgit v0.10.2 From a99cd1125189aaf31a7ee505d6208143482119eb Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Fri, 6 Apr 2012 12:53:50 -0400 Subject: init: fix bug where environment vars can't be passed via boot args Commit 026cee0086f had the side-effect of dropping the '=' from the unknown boot arguments that are passed to init as environment variables. This is because parse_args() puts a NUL in the string where the '=' was when it passes the "param" and "val" pointers to the parsing subfunctions. Previously, unknown_bootoption() was the last parse_args() subfunction to run, and it carefully put back the '=' character. Now the ignore_unknown_bootoption() is the last one to run, and it wasn't doing the necessary repair, so the envp params ended up with the embedded NUL and were no longer seen as valid environment variables by init. Tested-by: Woody Suwalski Acked-by: Pawel Moll Signed-off-by: Chris Metcalf diff --git a/init/main.c b/init/main.c index 9d454f0..44b2433 100644 --- a/init/main.c +++ b/init/main.c @@ -225,13 +225,9 @@ static int __init loglevel(char *str) early_param("loglevel", loglevel); -/* - * Unknown boot options get handed to init, unless they look like - * unused parameters (modprobe will find them in /proc/cmdline). - */ -static int __init unknown_bootoption(char *param, char *val) +/* Change NUL term back to "=", to make "param" the whole string. */ +static int __init repair_env_string(char *param, char *val) { - /* Change NUL term back to "=", to make "param" the whole string. */ if (val) { /* param=val or param="val"? */ if (val == param+strlen(param)+1) @@ -243,6 +239,16 @@ static int __init unknown_bootoption(char *param, char *val) } else BUG(); } + return 0; +} + +/* + * Unknown boot options get handed to init, unless they look like + * unused parameters (modprobe will find them in /proc/cmdline). + */ +static int __init unknown_bootoption(char *param, char *val) +{ + repair_env_string(param, val); /* Handle obsolete-style parameters */ if (obsolete_checksetup(param)) @@ -732,11 +738,6 @@ static char *initcall_level_names[] __initdata = { "late parameters", }; -static int __init ignore_unknown_bootoption(char *param, char *val) -{ - return 0; -} - static void __init do_initcall_level(int level) { extern const struct kernel_param __start___param[], __stop___param[]; @@ -747,7 +748,7 @@ static void __init do_initcall_level(int level) static_command_line, __start___param, __stop___param - __start___param, level, level, - ignore_unknown_bootoption); + repair_env_string); for (fn = initcall_levels[level]; fn < initcall_levels[level+1]; fn++) do_one_initcall(*fn); -- cgit v0.10.2 From 05ef1b79d46347f94d9a78214cc745046c03e45a Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Wed, 25 Apr 2012 12:45:26 -0400 Subject: arch/tile: fix a couple of functions that should be __init They were marked __devinit by mistake, causing some warnings at link time. Signed-off-by: Chris Metcalf diff --git a/arch/tile/include/asm/pci.h b/arch/tile/include/asm/pci.h index 5d5a635..32e6cbe 100644 --- a/arch/tile/include/asm/pci.h +++ b/arch/tile/include/asm/pci.h @@ -47,8 +47,8 @@ struct pci_controller { */ #define PCI_DMA_BUS_IS_PHYS 1 -int __devinit tile_pci_init(void); -int __devinit pcibios_init(void); +int __init tile_pci_init(void); +int __init pcibios_init(void); static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr) {} diff --git a/arch/tile/kernel/pci.c b/arch/tile/kernel/pci.c index a1bb59e..b56d12b 100644 --- a/arch/tile/kernel/pci.c +++ b/arch/tile/kernel/pci.c @@ -141,7 +141,7 @@ static int __devinit tile_init_irqs(int controller_id, * * Returns the number of controllers discovered. */ -int __devinit tile_pci_init(void) +int __init tile_pci_init(void) { int i; @@ -287,7 +287,7 @@ static void __devinit fixup_read_and_payload_sizes(void) * The controllers have been set up by the time we get here, by a call to * tile_pci_init. */ -int __devinit pcibios_init(void) +int __init pcibios_init(void) { int i; -- cgit v0.10.2 From a05a4830a32ef9f89e7bd372a7bae9b96b1ac266 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Wed, 25 Apr 2012 12:46:50 -0400 Subject: keys: update the documentation with info about "logon" keys Acked-by: David Howells Signed-off-by: Jeff Layton diff --git a/Documentation/security/keys.txt b/Documentation/security/keys.txt index 7877170..d389acd 100644 --- a/Documentation/security/keys.txt +++ b/Documentation/security/keys.txt @@ -123,7 +123,7 @@ KEY SERVICE OVERVIEW The key service provides a number of features besides keys: - (*) The key service defines two special key types: + (*) The key service defines three special key types: (+) "keyring" @@ -137,6 +137,18 @@ The key service provides a number of features besides keys: blobs of data. These can be created, updated and read by userspace, and aren't intended for use by kernel services. + (+) "logon" + + Like a "user" key, a "logon" key has a payload that is an arbitrary + blob of data. It is intended as a place to store secrets which are + accessible to the kernel but not to userspace programs. + + The description can be arbitrary, but must be prefixed with a non-zero + length string that describes the key "subclass". The subclass is + separated from the rest of the description by a ':'. "logon" keys can + be created and updated from userspace, but the payload is only + readable from kernel space. + (*) Each process subscribes to three keyrings: a thread-specific keyring, a process-specific keyring, and a session-specific keyring. -- cgit v0.10.2 From da3a9e9e7b8341cfc939818103cb7ef9f5293de2 Mon Sep 17 00:00:00 2001 From: Benjamin Poirier Date: Wed, 25 Apr 2012 04:49:20 +0000 Subject: tlan: add cast needed for proper 64 bit operation Changes this beauty into a statement that actually has an effect on amd64. Tested-by: Per Jessen Signed-off-by: Benjamin Poirier Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/ti/tlan.c b/drivers/net/ethernet/ti/tlan.c index 817ad3b..efd3669 100644 --- a/drivers/net/ethernet/ti/tlan.c +++ b/drivers/net/ethernet/ti/tlan.c @@ -228,7 +228,7 @@ tlan_get_skb(const struct tlan_list *tag) unsigned long addr; addr = tag->buffer[9].address; - addr |= (tag->buffer[8].address << 16) << 16; + addr |= ((unsigned long) tag->buffer[8].address << 16) << 16; return (struct sk_buff *) addr; } -- cgit v0.10.2 From f891ea1634ce41f5f47ae40d8594809f4cd2ca66 Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Tue, 24 Apr 2012 13:37:01 +0000 Subject: tg3: Avoid panic from reserved statblk field access When RSS is enabled, interrupt vector 0 does not receive any rx traffic. The rx producer index fields for vector 0's status block should be considered reserved in this case. This patch changes the code to respect these reserved fields, which avoids a kernel panic when these fields take on non-zero values. Signed-off-by: Matt Carlson Signed-off-by: Michael Chan Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index 062ac33..ceeab8e 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -879,8 +879,13 @@ static inline unsigned int tg3_has_work(struct tg3_napi *tnapi) if (sblk->status & SD_STATUS_LINK_CHG) work_exists = 1; } - /* check for RX/TX work to do */ - if (sblk->idx[0].tx_consumer != tnapi->tx_cons || + + /* check for TX work to do */ + if (sblk->idx[0].tx_consumer != tnapi->tx_cons) + work_exists = 1; + + /* check for RX work to do */ + if (tnapi->rx_rcb_prod_idx && *(tnapi->rx_rcb_prod_idx) != tnapi->rx_rcb_ptr) work_exists = 1; @@ -6124,6 +6129,9 @@ static int tg3_poll_work(struct tg3_napi *tnapi, int work_done, int budget) return work_done; } + if (!tnapi->rx_rcb_prod_idx) + return work_done; + /* run RX thread, within the bounds set by NAPI. * All RX "locking" is done by ensuring outside * code synchronizes with tg3->napi.poll() @@ -7567,6 +7575,12 @@ static int tg3_alloc_consistent(struct tg3 *tp) */ switch (i) { default: + if (tg3_flag(tp, ENABLE_RSS)) { + tnapi->rx_rcb_prod_idx = NULL; + break; + } + /* Fall through */ + case 1: tnapi->rx_rcb_prod_idx = &sblk->idx[0].rx_producer; break; case 2: -- cgit v0.10.2 From c95eeae9e39314273bcda057f27100603d333518 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Thu, 5 Apr 2012 16:15:24 +0200 Subject: i2c: mxs: handle spurious interrupt After an error interrupt setting cmd->err, I see another interrupt that the data engine is empty which clears cmd->err before being processed. So, clear cmd->err at the beginning of a transfer only to handle these consecutive interrupts. Signed-off-by: Wolfram Sang diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c index 3d471d5..4c37347 100644 --- a/drivers/i2c/busses/i2c-mxs.c +++ b/drivers/i2c/busses/i2c-mxs.c @@ -227,6 +227,7 @@ static int mxs_i2c_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, return -EINVAL; init_completion(&i2c->cmd_complete); + i2c->cmd_err = 0; flags = stop ? MXS_I2C_CTRL0_POST_SEND_STOP : 0; @@ -299,8 +300,6 @@ static irqreturn_t mxs_i2c_isr(int this_irq, void *dev_id) MXS_I2C_CTRL1_SLAVE_STOP_IRQ | MXS_I2C_CTRL1_SLAVE_IRQ)) /* MXS_I2C_CTRL1_OVERSIZE_XFER_TERM_IRQ is only for slaves */ i2c->cmd_err = -EIO; - else - i2c->cmd_err = 0; is_last_cmd = (readl(i2c->regs + MXS_I2C_QUEUESTAT) & MXS_I2C_QUEUESTAT_WRITE_QUEUE_CNT_MASK) == 0; -- cgit v0.10.2 From 62ad6fcd743792bf294f2a7ba26ab8f462065150 Mon Sep 17 00:00:00 2001 From: Shan Wei Date: Tue, 24 Apr 2012 18:15:41 +0000 Subject: udp_diag: implement idiag_get_info for udp/udplite to get queue information When we use netlink to monitor queue information for udp socket, idiag_rqueue and idiag_wqueue of inet_diag_msg are returned with 0. Keep consistent with netstat, just return back allocated rmem/wmem size. Signed-off-by: Shan Wei Acked-by: Pavel Emelyanov Signed-off-by: David S. Miller diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c index 8d25a1c..8f8db72 100644 --- a/net/ipv4/inet_diag.c +++ b/net/ipv4/inet_diag.c @@ -141,7 +141,7 @@ int inet_sk_diag_fill(struct sock *sk, struct inet_connection_sock *icsk, goto rtattr_failure; if (icsk == NULL) { - r->idiag_rqueue = r->idiag_wqueue = 0; + handler->idiag_get_info(sk, r, NULL); goto out; } diff --git a/net/ipv4/udp_diag.c b/net/ipv4/udp_diag.c index 8a949f1..a7f86a3 100644 --- a/net/ipv4/udp_diag.c +++ b/net/ipv4/udp_diag.c @@ -146,9 +146,17 @@ static int udp_diag_dump_one(struct sk_buff *in_skb, const struct nlmsghdr *nlh, return udp_dump_one(&udp_table, in_skb, nlh, req); } +static void udp_diag_get_info(struct sock *sk, struct inet_diag_msg *r, + void *info) +{ + r->idiag_rqueue = sk_rmem_alloc_get(sk); + r->idiag_wqueue = sk_wmem_alloc_get(sk); +} + static const struct inet_diag_handler udp_diag_handler = { .dump = udp_diag_dump, .dump_one = udp_diag_dump_one, + .idiag_get_info = udp_diag_get_info, .idiag_type = IPPROTO_UDP, }; @@ -167,6 +175,7 @@ static int udplite_diag_dump_one(struct sk_buff *in_skb, const struct nlmsghdr * static const struct inet_diag_handler udplite_diag_handler = { .dump = udplite_diag_dump, .dump_one = udplite_diag_dump_one, + .idiag_get_info = udp_diag_get_info, .idiag_type = IPPROTO_UDPLITE, }; -- cgit v0.10.2 From 4e1c2b284461fd8aa8d7b295a1e911fc4390755b Mon Sep 17 00:00:00 2001 From: David Miller Date: Wed, 25 Apr 2012 16:10:50 -0400 Subject: mm: nobootmem: Correct alloc_bootmem semantics. The comments above __alloc_bootmem_node() claim that the code will first try the allocation using 'goal' and if that fails it will try again but with the 'goal' requirement dropped. Unfortunately, this is not what the code does, so fix it to do so. This is important for nobootmem conversions to architectures such as sparc where MAX_DMA_ADDRESS is infinity. On such architectures all of the allocations done by generic spots, such as the sparse-vmemmap implementation, will pass in: __pa(MAX_DMA_ADDRESS) as the goal, and with the limit given as "-1" this will always fail unless we add the appropriate fallback logic here. Signed-off-by: David S. Miller Acked-by: Yinghai Lu Signed-off-by: Linus Torvalds diff --git a/mm/nobootmem.c b/mm/nobootmem.c index 24f0fc1..e53bb8a 100644 --- a/mm/nobootmem.c +++ b/mm/nobootmem.c @@ -298,13 +298,19 @@ void * __init __alloc_bootmem_node(pg_data_t *pgdat, unsigned long size, if (WARN_ON_ONCE(slab_is_available())) return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id); +again: ptr = __alloc_memory_core_early(pgdat->node_id, size, align, goal, -1ULL); if (ptr) return ptr; - return __alloc_memory_core_early(MAX_NUMNODES, size, align, - goal, -1ULL); + ptr = __alloc_memory_core_early(MAX_NUMNODES, size, align, + goal, -1ULL); + if (!ptr && goal) { + goal = 0; + goto again; + } + return ptr; } void * __init __alloc_bootmem_node_high(pg_data_t *pgdat, unsigned long size, -- cgit v0.10.2 From ce587e65e8c669eec61df7fb1c515720302e3cc0 Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Tue, 24 Apr 2012 20:22:33 +0200 Subject: mm: memcg: move pc lookup point to commit_charge() None of the callsites actually need the page_cgroup descriptor themselves, so just pass the page and do the look up in there. We already had two bugs (6568d4a 'mm: memcg: update the correct soft limit tree during migration' and 'memcg: fix Bad page state after replace_page_cache') where the passed page and pc were not referring to the same page frame. Signed-off-by: Johannes Weiner Acked-by: Hugh Dickins Signed-off-by: Linus Torvalds diff --git a/mm/memcontrol.c b/mm/memcontrol.c index b868def..31ab9c3 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -2476,10 +2476,10 @@ struct mem_cgroup *try_get_mem_cgroup_from_page(struct page *page) static void __mem_cgroup_commit_charge(struct mem_cgroup *memcg, struct page *page, unsigned int nr_pages, - struct page_cgroup *pc, enum charge_type ctype, bool lrucare) { + struct page_cgroup *pc = lookup_page_cgroup(page); struct zone *uninitialized_var(zone); bool was_on_lru = false; bool anon; @@ -2716,7 +2716,6 @@ static int mem_cgroup_charge_common(struct page *page, struct mm_struct *mm, { struct mem_cgroup *memcg = NULL; unsigned int nr_pages = 1; - struct page_cgroup *pc; bool oom = true; int ret; @@ -2730,11 +2729,10 @@ static int mem_cgroup_charge_common(struct page *page, struct mm_struct *mm, oom = false; } - pc = lookup_page_cgroup(page); ret = __mem_cgroup_try_charge(mm, gfp_mask, nr_pages, &memcg, oom); if (ret == -ENOMEM) return ret; - __mem_cgroup_commit_charge(memcg, page, nr_pages, pc, ctype, false); + __mem_cgroup_commit_charge(memcg, page, nr_pages, ctype, false); return 0; } @@ -2831,16 +2829,13 @@ static void __mem_cgroup_commit_charge_swapin(struct page *page, struct mem_cgroup *memcg, enum charge_type ctype) { - struct page_cgroup *pc; - if (mem_cgroup_disabled()) return; if (!memcg) return; cgroup_exclude_rmdir(&memcg->css); - pc = lookup_page_cgroup(page); - __mem_cgroup_commit_charge(memcg, page, 1, pc, ctype, true); + __mem_cgroup_commit_charge(memcg, page, 1, ctype, true); /* * Now swap is on-memory. This means this page may be * counted both as mem and swap....double count. @@ -3298,14 +3293,13 @@ int mem_cgroup_prepare_migration(struct page *page, * page. In the case new page is migrated but not remapped, new page's * mapcount will be finally 0 and we call uncharge in end_migration(). */ - pc = lookup_page_cgroup(newpage); if (PageAnon(page)) ctype = MEM_CGROUP_CHARGE_TYPE_MAPPED; else if (page_is_file_cache(page)) ctype = MEM_CGROUP_CHARGE_TYPE_CACHE; else ctype = MEM_CGROUP_CHARGE_TYPE_SHMEM; - __mem_cgroup_commit_charge(memcg, newpage, 1, pc, ctype, false); + __mem_cgroup_commit_charge(memcg, newpage, 1, ctype, false); return ret; } @@ -3392,8 +3386,7 @@ void mem_cgroup_replace_page_cache(struct page *oldpage, * the newpage may be on LRU(or pagevec for LRU) already. We lock * LRU while we overwrite pc->mem_cgroup. */ - pc = lookup_page_cgroup(newpage); - __mem_cgroup_commit_charge(memcg, newpage, 1, pc, type, true); + __mem_cgroup_commit_charge(memcg, newpage, 1, type, true); } #ifdef CONFIG_DEBUG_VM -- cgit v0.10.2 From b1c12cbcd0a02527c180a862e8971e249d3b347d Mon Sep 17 00:00:00 2001 From: Konstantin Khlebnikov Date: Wed, 25 Apr 2012 16:01:46 -0700 Subject: mm/hugetlb: fix warning in alloc_huge_page/dequeue_huge_page_vma Fix a gcc warning (and bug?) introduced in cc9a6c877 ("cpuset: mm: reduce large amounts of memory barrier related damage v3") Local variable "page" can be uninitialized if the nodemask from vma policy does not intersects with nodemask from cpuset. Even if it doesn't happens it is better to initialize this variable explicitly than to introduce a kernel oops in a weird corner case. mm/hugetlb.c: In function `alloc_huge_page': mm/hugetlb.c:1135:5: warning: `page' may be used uninitialized in this function Signed-off-by: Konstantin Khlebnikov Acked-by: Mel Gorman Acked-by: David Rientjes Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/hugetlb.c b/mm/hugetlb.c index cd65cb1..5a16423 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -532,7 +532,7 @@ static struct page *dequeue_huge_page_vma(struct hstate *h, struct vm_area_struct *vma, unsigned long address, int avoid_reserve) { - struct page *page; + struct page *page = NULL; struct mempolicy *mpol; nodemask_t *nodemask; struct zonelist *zonelist; -- cgit v0.10.2 From 13d518074a952d33d47c428419693f63389547e9 Mon Sep 17 00:00:00 2001 From: Jason Baron Date: Wed, 25 Apr 2012 16:01:47 -0700 Subject: epoll: clear the tfile_check_list on -ELOOP An epoll_ctl(,EPOLL_CTL_ADD,,) operation can return '-ELOOP' to prevent circular epoll dependencies from being created. However, in that case we do not properly clear the 'tfile_check_list'. Thus, add a call to clear_tfile_check_list() for the -ELOOP case. Signed-off-by: Jason Baron Reported-by: Yurij M. Plotnikov Cc: Nelson Elhage Cc: Davide Libenzi Tested-by: Alexandra N. Kossovsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/fs/eventpoll.c b/fs/eventpoll.c index 739b098..c0b3c70 100644 --- a/fs/eventpoll.c +++ b/fs/eventpoll.c @@ -1663,8 +1663,10 @@ SYSCALL_DEFINE4(epoll_ctl, int, epfd, int, op, int, fd, if (op == EPOLL_CTL_ADD) { if (is_file_epoll(tfile)) { error = -ELOOP; - if (ep_loop_check(ep, tfile) != 0) + if (ep_loop_check(ep, tfile) != 0) { + clear_tfile_check_list(); goto error_tgt_fput; + } } else list_add(&tfile->f_tfile_llink, &tfile_check_list); } -- cgit v0.10.2 From 904249aa68010c8e223263c922fcbb840a3f42e4 Mon Sep 17 00:00:00 2001 From: Ying Han Date: Wed, 25 Apr 2012 16:01:48 -0700 Subject: mm: fix up the vmscan stat in vmstat The "pgsteal" stat is confusing because it counts both direct reclaim as well as background reclaim. However, we have "kswapd_steal" which also counts background reclaim value. This patch fixes it and also makes it match the existng "pgscan_" stats. Test: pgsteal_kswapd_dma32 447623 pgsteal_kswapd_normal 42272677 pgsteal_kswapd_movable 0 pgsteal_direct_dma32 2801 pgsteal_direct_normal 44353270 pgsteal_direct_movable 0 Signed-off-by: Ying Han Reviewed-by: Rik van Riel Acked-by: Christoph Lameter Cc: Johannes Weiner Cc: Michal Hocko Cc: Mel Gorman Acked-by: KAMEZAWA Hiroyuki Cc: Hillf Danton Cc: Hugh Dickins Cc: Dan Magenheimer Reviewed-by: Minchan Kim Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h index 03b90cdc..06f8e38 100644 --- a/include/linux/vm_event_item.h +++ b/include/linux/vm_event_item.h @@ -26,13 +26,14 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, PGFREE, PGACTIVATE, PGDEACTIVATE, PGFAULT, PGMAJFAULT, FOR_ALL_ZONES(PGREFILL), - FOR_ALL_ZONES(PGSTEAL), + FOR_ALL_ZONES(PGSTEAL_KSWAPD), + FOR_ALL_ZONES(PGSTEAL_DIRECT), FOR_ALL_ZONES(PGSCAN_KSWAPD), FOR_ALL_ZONES(PGSCAN_DIRECT), #ifdef CONFIG_NUMA PGSCAN_ZONE_RECLAIM_FAILED, #endif - PGINODESTEAL, SLABS_SCANNED, KSWAPD_STEAL, KSWAPD_INODESTEAL, + PGINODESTEAL, SLABS_SCANNED, KSWAPD_INODESTEAL, KSWAPD_LOW_WMARK_HIT_QUICKLY, KSWAPD_HIGH_WMARK_HIT_QUICKLY, KSWAPD_SKIP_CONGESTION_WAIT, PAGEOUTRUN, ALLOCSTALL, PGROTATED, diff --git a/mm/vmscan.c b/mm/vmscan.c index 1a51868..33dc256 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1568,9 +1568,14 @@ shrink_inactive_list(unsigned long nr_to_scan, struct mem_cgroup_zone *mz, reclaim_stat->recent_scanned[0] += nr_anon; reclaim_stat->recent_scanned[1] += nr_file; - if (current_is_kswapd()) - __count_vm_events(KSWAPD_STEAL, nr_reclaimed); - __count_zone_vm_events(PGSTEAL, zone, nr_reclaimed); + if (global_reclaim(sc)) { + if (current_is_kswapd()) + __count_zone_vm_events(PGSTEAL_KSWAPD, zone, + nr_reclaimed); + else + __count_zone_vm_events(PGSTEAL_DIRECT, zone, + nr_reclaimed); + } putback_inactive_pages(mz, &page_list); diff --git a/mm/vmstat.c b/mm/vmstat.c index f600557..7db1b9b 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -738,7 +738,8 @@ const char * const vmstat_text[] = { "pgmajfault", TEXTS_FOR_ZONES("pgrefill") - TEXTS_FOR_ZONES("pgsteal") + TEXTS_FOR_ZONES("pgsteal_kswapd") + TEXTS_FOR_ZONES("pgsteal_direct") TEXTS_FOR_ZONES("pgscan_kswapd") TEXTS_FOR_ZONES("pgscan_direct") @@ -747,7 +748,6 @@ const char * const vmstat_text[] = { #endif "pginodesteal", "slabs_scanned", - "kswapd_steal", "kswapd_inodesteal", "kswapd_low_wmark_hit_quickly", "kswapd_high_wmark_hit_quickly", -- cgit v0.10.2 From 61065a30af8df4b8989c2ac7a1f4b4034e4df2d5 Mon Sep 17 00:00:00 2001 From: Glauber Costa Date: Wed, 25 Apr 2012 16:01:48 -0700 Subject: fs/buffer.c: remove BUG() in possible but rare condition While stressing the kernel with with failing allocations today, I hit the following chain of events: alloc_page_buffers(): bh = alloc_buffer_head(GFP_NOFS); if (!bh) goto no_grow; <= path taken grow_dev_page(): bh = alloc_page_buffers(page, size, 0); if (!bh) goto failed; <= taken, consequence of the above and then the failed path BUG()s the kernel. The failure is inserted a litte bit artificially, but even then, I see no reason why it should be deemed impossible in a real box. Even though this is not a condition that we expect to see around every time, failed allocations are expected to be handled, and BUG() sounds just too much. As a matter of fact, grow_dev_page() can return NULL just fine in other circumstances, so I propose we just remove it, then. Signed-off-by: Glauber Costa Cc: Michal Hocko Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/fs/buffer.c b/fs/buffer.c index 36d6665..351e18e 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -985,7 +985,6 @@ grow_dev_page(struct block_device *bdev, sector_t block, return page; failed: - BUG(); unlock_page(page); page_cache_release(page); return NULL; -- cgit v0.10.2 From e39a9ba2889edbfbda4a9336ea718b2e25a9c2b2 Mon Sep 17 00:00:00 2001 From: Clay Carpenter Date: Wed, 25 Apr 2012 16:01:49 -0700 Subject: acerhdf: add support for Aspire 1410 BIOS v1.3314 Add support for Aspire 1410 BIOS v1.3314. Fixes the following error: acerhdf: unknown (unsupported) BIOS version Acer/Aspire 1410/v1.3314, please report, aborting! Signed-off-by: Clay Carpenter Signed-off-by: Peter Feuerer Cc: Matthew Garrett Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c index bc8384c..9a19349 100644 --- a/drivers/platform/x86/acerhdf.c +++ b/drivers/platform/x86/acerhdf.c @@ -161,6 +161,7 @@ static const struct bios_settings_t bios_tbl[] = { {"Acer", "Aspire 1410", "v1.3303", 0x55, 0x58, {0x9e, 0x00} }, {"Acer", "Aspire 1410", "v1.3308", 0x55, 0x58, {0x9e, 0x00} }, {"Acer", "Aspire 1410", "v1.3310", 0x55, 0x58, {0x9e, 0x00} }, + {"Acer", "Aspire 1410", "v1.3314", 0x55, 0x58, {0x9e, 0x00} }, /* Acer 1810xx */ {"Acer", "Aspire 1810TZ", "v0.3108", 0x55, 0x58, {0x9e, 0x00} }, {"Acer", "Aspire 1810T", "v0.3108", 0x55, 0x58, {0x9e, 0x00} }, -- cgit v0.10.2 From 43ae1e32e0b540fa04f059b7aa3b4f5cf49fc9ad Mon Sep 17 00:00:00 2001 From: Peter Feuerer Date: Wed, 25 Apr 2012 16:01:49 -0700 Subject: acerhdf: add support for new hardware Add support for new hardware: Acer Aspire LT-10Q/531/751/1810/1825, Acer Travelmate 7730, Packard Bell ENBFT/DOTVR46 Signed-off-by: Peter Feuerer Acked-by: Borislav Petkov Cc: Matthew Garrett Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c index 9a19349..c697d80 100644 --- a/drivers/platform/x86/acerhdf.c +++ b/drivers/platform/x86/acerhdf.c @@ -50,7 +50,7 @@ */ #undef START_IN_KERNEL_MODE -#define DRV_VER "0.5.24" +#define DRV_VER "0.5.26" /* * According to the Atom N270 datasheet, @@ -150,6 +150,8 @@ static const struct bios_settings_t bios_tbl[] = { {"Acer", "AOA150", "v0.3308", 0x55, 0x58, {0x20, 0x00} }, {"Acer", "AOA150", "v0.3309", 0x55, 0x58, {0x20, 0x00} }, {"Acer", "AOA150", "v0.3310", 0x55, 0x58, {0x20, 0x00} }, + /* LT1005u */ + {"Acer", "LT-10Q", "v0.3310", 0x55, 0x58, {0x20, 0x00} }, /* Acer 1410 */ {"Acer", "Aspire 1410", "v0.3108", 0x55, 0x58, {0x9e, 0x00} }, {"Acer", "Aspire 1410", "v0.3113", 0x55, 0x58, {0x9e, 0x00} }, @@ -184,29 +186,44 @@ static const struct bios_settings_t bios_tbl[] = { {"Acer", "Aspire 1810TZ", "v1.3310", 0x55, 0x58, {0x9e, 0x00} }, {"Acer", "Aspire 1810T", "v1.3310", 0x55, 0x58, {0x9e, 0x00} }, {"Acer", "Aspire 1810TZ", "v1.3314", 0x55, 0x58, {0x9e, 0x00} }, + {"Acer", "Aspire 1810T", "v1.3314", 0x55, 0x58, {0x9e, 0x00} }, /* Acer 531 */ + {"Acer", "AO531h", "v0.3104", 0x55, 0x58, {0x20, 0x00} }, {"Acer", "AO531h", "v0.3201", 0x55, 0x58, {0x20, 0x00} }, + {"Acer", "AO531h", "v0.3304", 0x55, 0x58, {0x20, 0x00} }, + /* Acer 751 */ + {"Acer", "AO751h", "V0.3212", 0x55, 0x58, {0x21, 0x00} }, + /* Acer 1825 */ + {"Acer", "Aspire 1825PTZ", "V1.3118", 0x55, 0x58, {0x9e, 0x00} }, + {"Acer", "Aspire 1825PTZ", "V1.3127", 0x55, 0x58, {0x9e, 0x00} }, + /* Acer TravelMate 7730 */ + {"Acer", "TravelMate 7730G", "v0.3509", 0x55, 0x58, {0xaf, 0x00} }, /* Gateway */ - {"Gateway", "AOA110", "v0.3103", 0x55, 0x58, {0x21, 0x00} }, - {"Gateway", "AOA150", "v0.3103", 0x55, 0x58, {0x20, 0x00} }, - {"Gateway", "LT31", "v1.3103", 0x55, 0x58, {0x9e, 0x00} }, - {"Gateway", "LT31", "v1.3201", 0x55, 0x58, {0x9e, 0x00} }, - {"Gateway", "LT31", "v1.3302", 0x55, 0x58, {0x9e, 0x00} }, + {"Gateway", "AOA110", "v0.3103", 0x55, 0x58, {0x21, 0x00} }, + {"Gateway", "AOA150", "v0.3103", 0x55, 0x58, {0x20, 0x00} }, + {"Gateway", "LT31", "v1.3103", 0x55, 0x58, {0x9e, 0x00} }, + {"Gateway", "LT31", "v1.3201", 0x55, 0x58, {0x9e, 0x00} }, + {"Gateway", "LT31", "v1.3302", 0x55, 0x58, {0x9e, 0x00} }, + {"Gateway", "LT31", "v1.3303t", 0x55, 0x58, {0x9e, 0x00} }, /* Packard Bell */ - {"Packard Bell", "DOA150", "v0.3104", 0x55, 0x58, {0x21, 0x00} }, - {"Packard Bell", "DOA150", "v0.3105", 0x55, 0x58, {0x20, 0x00} }, - {"Packard Bell", "AOA110", "v0.3105", 0x55, 0x58, {0x21, 0x00} }, - {"Packard Bell", "AOA150", "v0.3105", 0x55, 0x58, {0x20, 0x00} }, - {"Packard Bell", "DOTMU", "v1.3303", 0x55, 0x58, {0x9e, 0x00} }, - {"Packard Bell", "DOTMU", "v0.3120", 0x55, 0x58, {0x9e, 0x00} }, - {"Packard Bell", "DOTMU", "v0.3108", 0x55, 0x58, {0x9e, 0x00} }, - {"Packard Bell", "DOTMU", "v0.3113", 0x55, 0x58, {0x9e, 0x00} }, - {"Packard Bell", "DOTMU", "v0.3115", 0x55, 0x58, {0x9e, 0x00} }, - {"Packard Bell", "DOTMU", "v0.3117", 0x55, 0x58, {0x9e, 0x00} }, - {"Packard Bell", "DOTMU", "v0.3119", 0x55, 0x58, {0x9e, 0x00} }, - {"Packard Bell", "DOTMU", "v1.3204", 0x55, 0x58, {0x9e, 0x00} }, - {"Packard Bell", "DOTMA", "v1.3201", 0x55, 0x58, {0x9e, 0x00} }, - {"Packard Bell", "DOTMA", "v1.3302", 0x55, 0x58, {0x9e, 0x00} }, + {"Packard Bell", "DOA150", "v0.3104", 0x55, 0x58, {0x21, 0x00} }, + {"Packard Bell", "DOA150", "v0.3105", 0x55, 0x58, {0x20, 0x00} }, + {"Packard Bell", "AOA110", "v0.3105", 0x55, 0x58, {0x21, 0x00} }, + {"Packard Bell", "AOA150", "v0.3105", 0x55, 0x58, {0x20, 0x00} }, + {"Packard Bell", "ENBFT", "V1.3118", 0x55, 0x58, {0x9e, 0x00} }, + {"Packard Bell", "ENBFT", "V1.3127", 0x55, 0x58, {0x9e, 0x00} }, + {"Packard Bell", "DOTMU", "v1.3303", 0x55, 0x58, {0x9e, 0x00} }, + {"Packard Bell", "DOTMU", "v0.3120", 0x55, 0x58, {0x9e, 0x00} }, + {"Packard Bell", "DOTMU", "v0.3108", 0x55, 0x58, {0x9e, 0x00} }, + {"Packard Bell", "DOTMU", "v0.3113", 0x55, 0x58, {0x9e, 0x00} }, + {"Packard Bell", "DOTMU", "v0.3115", 0x55, 0x58, {0x9e, 0x00} }, + {"Packard Bell", "DOTMU", "v0.3117", 0x55, 0x58, {0x9e, 0x00} }, + {"Packard Bell", "DOTMU", "v0.3119", 0x55, 0x58, {0x9e, 0x00} }, + {"Packard Bell", "DOTMU", "v1.3204", 0x55, 0x58, {0x9e, 0x00} }, + {"Packard Bell", "DOTMA", "v1.3201", 0x55, 0x58, {0x9e, 0x00} }, + {"Packard Bell", "DOTMA", "v1.3302", 0x55, 0x58, {0x9e, 0x00} }, + {"Packard Bell", "DOTMA", "v1.3303t", 0x55, 0x58, {0x9e, 0x00} }, + {"Packard Bell", "DOTVR46", "v1.3308", 0x55, 0x58, {0x9e, 0x00} }, /* pewpew-terminator */ {"", "", "", 0, 0, {0, 0} } }; @@ -702,15 +719,20 @@ MODULE_LICENSE("GPL"); MODULE_AUTHOR("Peter Feuerer"); MODULE_DESCRIPTION("Aspire One temperature and fan driver"); MODULE_ALIAS("dmi:*:*Acer*:pnAOA*:"); +MODULE_ALIAS("dmi:*:*Acer*:pnAO751h*:"); MODULE_ALIAS("dmi:*:*Acer*:pnAspire*1410*:"); MODULE_ALIAS("dmi:*:*Acer*:pnAspire*1810*:"); +MODULE_ALIAS("dmi:*:*Acer*:pnAspire*1825PTZ:"); MODULE_ALIAS("dmi:*:*Acer*:pnAO531*:"); +MODULE_ALIAS("dmi:*:*Acer*:TravelMate*7730G:"); MODULE_ALIAS("dmi:*:*Gateway*:pnAOA*:"); MODULE_ALIAS("dmi:*:*Gateway*:pnLT31*:"); MODULE_ALIAS("dmi:*:*Packard*Bell*:pnAOA*:"); MODULE_ALIAS("dmi:*:*Packard*Bell*:pnDOA*:"); MODULE_ALIAS("dmi:*:*Packard*Bell*:pnDOTMU*:"); +MODULE_ALIAS("dmi:*:*Packard*Bell*:pnENBFT*:"); MODULE_ALIAS("dmi:*:*Packard*Bell*:pnDOTMA*:"); +MODULE_ALIAS("dmi:*:*Packard*Bell*:pnDOTVR46*:"); module_init(acerhdf_init); module_exit(acerhdf_exit); -- cgit v0.10.2 From 351963bb58af5717359544087b9f634c27b9b155 Mon Sep 17 00:00:00 2001 From: Peter Feuerer Date: Wed, 25 Apr 2012 16:01:49 -0700 Subject: acerhdf: lowered default temp fanon/fanoff values Due to new supported hardware, of which the actual temperature limits of processor, harddisk and other components are unknown, it feels safer with lower fanon / fanoff settings. It won't change much for most people, already using acerhdf, as they use their own fanon/fanoff variable settings when loading the module. Furthermore seems like kernel and userspace tools have been improved to work more efficient and netbooks don't get so hot anymore. Signed-off-by: Peter Feuerer Acked-by: Borislav Petkov Cc: Matthew Garrett Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c index c697d80..639db4d 100644 --- a/drivers/platform/x86/acerhdf.c +++ b/drivers/platform/x86/acerhdf.c @@ -83,8 +83,8 @@ static int kernelmode; #endif static unsigned int interval = 10; -static unsigned int fanon = 63000; -static unsigned int fanoff = 58000; +static unsigned int fanon = 60000; +static unsigned int fanoff = 53000; static unsigned int verbose; static unsigned int fanstate = ACERHDF_FAN_AUTO; static char force_bios[16]; -- cgit v0.10.2 From 65ed76010dfed3cb75c863c9052c367a1bacf80a Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Wed, 25 Apr 2012 16:01:50 -0700 Subject: hugetlbfs: lockdep annotate root inode properly This fixes the below reported false lockdep warning. e096d0c7e2e4 ("lockdep: Add helper function for dir vs file i_mutex annotation") added a similar annotation for every other inode in hugetlbfs but missed the root inode because it was allocated by a separate function. For HugeTLB fs we allow taking i_mutex in mmap. HugeTLB fs doesn't support file write and its file read callback is modified in a05b0855fd ("hugetlbfs: avoid taking i_mutex from hugetlbfs_read()") to not take i_mutex. Hence for HugeTLB fs with regular files we really don't take i_mutex with mmap_sem held. ====================================================== [ INFO: possible circular locking dependency detected ] 3.4.0-rc1+ #322 Not tainted ------------------------------------------------------- bash/1572 is trying to acquire lock: (&mm->mmap_sem){++++++}, at: [] might_fault+0x40/0x90 but task is already holding lock: (&sb->s_type->i_mutex_key#12){+.+.+.}, at: [] vfs_readdir+0x56/0xa8 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&sb->s_type->i_mutex_key#12){+.+.+.}: [] lock_acquire+0xd5/0xfa [] __mutex_lock_common+0x48/0x350 [] mutex_lock_nested+0x2a/0x31 [] hugetlbfs_file_mmap+0x7d/0x104 [] mmap_region+0x272/0x47d [] do_mmap_pgoff+0x294/0x2ee [] sys_mmap_pgoff+0xd2/0x10e [] sys_mmap+0x1d/0x1f [] system_call_fastpath+0x16/0x1b -> #0 (&mm->mmap_sem){++++++}: [] __lock_acquire+0xa81/0xd75 [] lock_acquire+0xd5/0xfa [] might_fault+0x6d/0x90 [] filldir+0x6a/0xc2 [] dcache_readdir+0x5c/0x222 [] vfs_readdir+0x76/0xa8 [] sys_getdents+0x79/0xc9 [] system_call_fastpath+0x16/0x1b other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&sb->s_type->i_mutex_key#12); lock(&mm->mmap_sem); lock(&sb->s_type->i_mutex_key#12); lock(&mm->mmap_sem); *** DEADLOCK *** 1 lock held by bash/1572: #0: (&sb->s_type->i_mutex_key#12){+.+.+.}, at: [] vfs_readdir+0x56/0xa8 stack backtrace: Pid: 1572, comm: bash Not tainted 3.4.0-rc1+ #322 Call Trace: [] print_circular_bug+0x1f8/0x209 [] __lock_acquire+0xa81/0xd75 [] ? handle_pte_fault+0x5ff/0x614 [] ? mark_lock+0x2d/0x258 [] ? might_fault+0x40/0x90 [] lock_acquire+0xd5/0xfa [] ? might_fault+0x40/0x90 [] ? __mutex_lock_common+0x333/0x350 [] might_fault+0x6d/0x90 [] ? might_fault+0x40/0x90 [] filldir+0x6a/0xc2 [] dcache_readdir+0x5c/0x222 [] ? sys_ioctl+0x74/0x74 [] ? sys_ioctl+0x74/0x74 [] ? sys_ioctl+0x74/0x74 [] vfs_readdir+0x76/0xa8 [] sys_getdents+0x79/0xc9 [] system_call_fastpath+0x16/0x1b Signed-off-by: Aneesh Kumar K.V Cc: Dave Jones Cc: Al Viro Cc: Josh Boyer Cc: Peter Zijlstra Cc: Mimi Zohar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 28cf06e..001ef01 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -485,6 +485,7 @@ static struct inode *hugetlbfs_get_root(struct super_block *sb, inode->i_fop = &simple_dir_operations; /* directory inodes start off with i_nlink == 2 (for "." entry) */ inc_nlink(inode); + lockdep_annotate_inode_mutex_key(inode); } return inode; } -- cgit v0.10.2 From db7b122cf5f769046d410f82a1e9fe7006ed955a Mon Sep 17 00:00:00 2001 From: Vasiliy Kulikov Date: Wed, 25 Apr 2012 16:01:51 -0700 Subject: arch/arm/mach-ux500/mbox-db5500.c: world-writable sysfs fifo file Don't allow everybody to use a modem. Signed-off-by: Vasiliy Kulikov Cc: Srinidhi Kasagar Acked-by: Linus Walleij Cc: Russell King Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/arch/arm/mach-ux500/mbox-db5500.c b/arch/arm/mach-ux500/mbox-db5500.c index 2b2d51c..0127490 100644 --- a/arch/arm/mach-ux500/mbox-db5500.c +++ b/arch/arm/mach-ux500/mbox-db5500.c @@ -168,7 +168,7 @@ static ssize_t mbox_read_fifo(struct device *dev, return sprintf(buf, "0x%X\n", mbox_value); } -static DEVICE_ATTR(fifo, S_IWUGO | S_IRUGO, mbox_read_fifo, mbox_write_fifo); +static DEVICE_ATTR(fifo, S_IWUSR | S_IRUGO, mbox_read_fifo, mbox_write_fifo); static int mbox_show(struct seq_file *s, void *data) { -- cgit v0.10.2 From 3f5ec5e06d6ca88168277247dbac0ec7b501600f Mon Sep 17 00:00:00 2001 From: Anatolij Gustschin Date: Wed, 25 Apr 2012 16:01:51 -0700 Subject: drivers/rtc/rtc-ds1307.c: fix BUG shown with lock debugging enabled Add struct bin_attribute initialization to fix the following bug: rtc-ds1307 3-0068: rtc core: registered ds1307 as rtc0 BUG: key cfb14fcc not in .data! ------------[ cut here ]------------ WARNING: at kernel/lockdep.c:2986 sysfs_add_file_mode+0x84/0xdc() Modules linked in: [] (unwind_backtrace+0x0/0xf8) from [] (warn_slowpath_common+0x4c/0x64) [] (warn_slowpath_common+0x4c/0x64) from [] (warn_slowpath_null+0x1c/0x24) [] (warn_slowpath_null+0x1c/0x24) from [] (sysfs_add_file_mode+0x84/0xdc) [] (sysfs_add_file_mode+0x84/0xdc) from [] (ds1307_probe+0x5e4/0x6ac) [] (ds1307_probe+0x5e4/0x6ac) from [] (i2c_device_probe+0xdc/0x108) [] (i2c_device_probe+0xdc/0x108) from [] (driver_probe_device+0x90/0x210) [] (driver_probe_device+0x90/0x210) from [] (__driver_attach+0x94/0x98) [] (__driver_attach+0x94/0x98) from [] (bus_for_each_dev+0x50/0x7c) [] (bus_for_each_dev+0x50/0x7c) from [] (bus_add_driver+0x184/0x244) [] (bus_add_driver+0x184/0x244) from [] (driver_register+0x78/0x12c) [] (driver_register+0x78/0x12c) from [] (i2c_register_driver+0x2c/0xb4) [] (i2c_register_driver+0x2c/0xb4) from [] (do_one_initcall+0x34/0x178) [] (do_one_initcall+0x34/0x178) from [] (kernel_init+0xdc/0x194) [] (kernel_init+0xdc/0x194) from [] (kernel_thread_exit+0x0/0x8) Since commit 6992f5334995af4 ("sysfs: Use one lockdep class per sysfs attribute") this initialization is required. Reported-by: Stefano Babic Tested-by: Stefano Babic Signed-off-by: Anatolij Gustschin Cc: Alessandro Zummo Cc: Stefano Babic Cc: Eric W. Biederman Cc: Greg Kroah-Hartman Acked-by: Wolfram Sang Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c index cd188ab..c293d0c 100644 --- a/drivers/rtc/rtc-ds1307.c +++ b/drivers/rtc/rtc-ds1307.c @@ -902,6 +902,7 @@ read_rtc: } ds1307->nvram->attr.name = "nvram"; ds1307->nvram->attr.mode = S_IRUGO | S_IWUSR; + sysfs_bin_attr_init(ds1307->nvram); ds1307->nvram->read = ds1307_nvram_read, ds1307->nvram->write = ds1307_nvram_write, ds1307->nvram->size = chip->nvram_size; -- cgit v0.10.2 From 63f61a6f4633ff34c17bea7a0ed827eaeb0733e1 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Wed, 25 Apr 2012 16:01:52 -0700 Subject: revert "proc: clear_refs: do not clear reserved pages" Revert commit 85e72aa5384 ("proc: clear_refs: do not clear reserved pages"), which was a quick fix suitable for -stable until ARM had been moved over to the gate_vma mechanism: https://lkml.org/lkml/2012/1/14/55 With commit f9d4861f ("ARM: 7294/1: vectors: use gate_vma for vectors user mapping"), ARM does now use the gate_vma, so the PageReserved check can be removed from the proc code. Signed-off-by: Will Deacon Cc: Nicolas Pitre Acked-by: Hugh Dickins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 2b9a760..2d60492 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -597,9 +597,6 @@ static int clear_refs_pte_range(pmd_t *pmd, unsigned long addr, if (!page) continue; - if (PageReserved(page)) - continue; - /* Clear accessed and referenced bits. */ ptep_test_and_clear_young(vma, addr, pte); ClearPageReferenced(page); -- cgit v0.10.2 From f2a9ef880763d7fbd657a3af646e132a90d70d34 Mon Sep 17 00:00:00 2001 From: Sasha Levin Date: Wed, 25 Apr 2012 16:01:52 -0700 Subject: mm: fix NULL ptr dereference in migrate_pages Commit 3268c63 ("mm: fix move/migrate_pages() race on task struct") has added an odd construct where 'mm' is checked for being NULL, and if it is, it would get dereferenced anyways by mput()ing it. This would lead to the following NULL ptr deref and BUG() when calling migrate_pages() with a pid that has no mm struct: [25904.193704] BUG: unable to handle kernel NULL pointer dereference at 0000000000000050 [25904.194235] IP: [] mmput+0x27/0xf0 [25904.194235] PGD 773e6067 PUD 77da0067 PMD 0 [25904.194235] Oops: 0002 [#1] PREEMPT SMP [25904.194235] CPU 2 [25904.194235] Pid: 31608, comm: trinity Tainted: G W 3.4.0-rc2-next-20120412-sasha #69 [25904.194235] RIP: 0010:[] [] mmput+0x27/0xf0 [25904.194235] RSP: 0018:ffff880077d49e08 EFLAGS: 00010202 [25904.194235] RAX: 0000000000000286 RBX: 0000000000000000 RCX: 0000000000000000 [25904.194235] RDX: ffff880075ef8000 RSI: 000000000000023d RDI: 0000000000000286 [25904.194235] RBP: ffff880077d49e18 R08: 0000000000000001 R09: 0000000000000001 [25904.194235] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [25904.194235] R13: 00000000ffffffea R14: ffff880034287740 R15: ffff8800218d3010 [25904.194235] FS: 00007fc8b244c700(0000) GS:ffff880029800000(0000) knlGS:0000000000000000 [25904.194235] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [25904.194235] CR2: 0000000000000050 CR3: 00000000767c6000 CR4: 00000000000406e0 [25904.194235] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [25904.194235] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [25904.194235] Process trinity (pid: 31608, threadinfo ffff880077d48000, task ffff880075ef8000) [25904.194235] Stack: [25904.194235] ffff8800342876c0 0000000000000000 ffff880077d49f78 ffffffff811b8020 [25904.194235] ffffffff811b7d91 ffff880075ef8000 ffff88002256d200 0000000000000000 [25904.194235] 00000000000003ff 0000000000000000 0000000000000000 0000000000000000 [25904.194235] Call Trace: [25904.194235] [] sys_migrate_pages+0x340/0x3a0 [25904.194235] [] ? sys_migrate_pages+0xb1/0x3a0 [25904.194235] [] system_call_fastpath+0x16/0x1b [25904.194235] Code: c9 c3 66 90 55 31 d2 48 89 e5 be 3d 02 00 00 48 83 ec 10 48 89 1c 24 4c 89 64 24 08 48 89 fb 48 c7 c7 cf 0e e1 82 e8 69 18 03 00 ff 4b 50 0f 94 c0 84 c0 0f 84 aa 00 00 00 48 89 df e8 72 f1 [25904.194235] RIP [] mmput+0x27/0xf0 [25904.194235] RSP [25904.194235] CR2: 0000000000000050 [25904.348999] ---[ end trace a307b3ed40206b4b ]--- Signed-off-by: Sasha Levin Cc: Dave Hansen Cc: Mel Gorman Cc: Johannes Weiner Cc: KOSAKI Motohiro Cc: KAMEZAWA Hiroyuki Cc: Hugh Dickins Cc: Christoph Lameter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/mempolicy.c b/mm/mempolicy.c index cfb6c86..b195691 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1361,11 +1361,14 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pid, unsigned long, maxnode, mm = get_task_mm(task); put_task_struct(task); - if (mm) - err = do_migrate_pages(mm, old, new, - capable(CAP_SYS_NICE) ? MPOL_MF_MOVE_ALL : MPOL_MF_MOVE); - else + + if (!mm) { err = -EINVAL; + goto out; + } + + err = do_migrate_pages(mm, old, new, + capable(CAP_SYS_NICE) ? MPOL_MF_MOVE_ALL : MPOL_MF_MOVE); mmput(mm); out: -- cgit v0.10.2 From 6e8b09eaf268bceac0c62e389b4bc0cb83dfb8e5 Mon Sep 17 00:00:00 2001 From: Sasha Levin Date: Wed, 25 Apr 2012 16:01:53 -0700 Subject: mm: fix NULL ptr dereference in move_pages Commit 3268c63 ("mm: fix move/migrate_pages() race on task struct") has added an odd construct where 'mm' is checked for being NULL, and if it is, it would get dereferenced anyways by mput()ing it. Signed-off-by: Sasha Levin Cc: Dave Hansen Cc: Mel Gorman Cc: Johannes Weiner Cc: KOSAKI Motohiro Cc: KAMEZAWA Hiroyuki Cc: Hugh Dickins Acked-by: Christoph Lameter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/migrate.c b/mm/migrate.c index 51c08a0..1107238 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -1388,14 +1388,14 @@ SYSCALL_DEFINE6(move_pages, pid_t, pid, unsigned long, nr_pages, mm = get_task_mm(task); put_task_struct(task); - if (mm) { - if (nodes) - err = do_pages_move(mm, task_nodes, nr_pages, pages, - nodes, status, flags); - else - err = do_pages_stat(mm, nr_pages, pages, status); - } else - err = -EINVAL; + if (!mm) + return -EINVAL; + + if (nodes) + err = do_pages_move(mm, task_nodes, nr_pages, pages, + nodes, status, flags); + else + err = do_pages_stat(mm, nr_pages, pages, status); mmput(mm); return err; -- cgit v0.10.2 From 8d08d71ce59438a6ef06be5db07966e0c144b74e Mon Sep 17 00:00:00 2001 From: Julian Anastasov Date: Wed, 25 Apr 2012 00:29:59 +0300 Subject: ipvs: add check in ftp for initialized core Avoid crash when registering ip_vs_ftp after the IPVS core initialization for netns fails. Do this by checking for present core (net->ipvs). Signed-off-by: Julian Anastasov Acked-by: Hans Schillstrom Signed-off-by: Simon Horman diff --git a/net/netfilter/ipvs/ip_vs_ftp.c b/net/netfilter/ipvs/ip_vs_ftp.c index 538d74e..e39f693 100644 --- a/net/netfilter/ipvs/ip_vs_ftp.c +++ b/net/netfilter/ipvs/ip_vs_ftp.c @@ -439,6 +439,8 @@ static int __net_init __ip_vs_ftp_init(struct net *net) struct ip_vs_app *app; struct netns_ipvs *ipvs = net_ipvs(net); + if (!ipvs) + return -ENOENT; app = kmemdup(&ip_vs_ftp, sizeof(struct ip_vs_app), GFP_KERNEL); if (!app) return -ENOMEM; -- cgit v0.10.2 From 39f618b4fd95ae243d940ec64c961009c74e3333 Mon Sep 17 00:00:00 2001 From: Julian Anastasov Date: Wed, 25 Apr 2012 00:29:58 +0300 Subject: ipvs: reset ipvs pointer in netns Make sure net->ipvs is reset on netns cleanup or failed initialization. It is needed for IPVS applications to know that IPVS core is not loaded in netns. Signed-off-by: Julian Anastasov Acked-by: Hans Schillstrom Signed-off-by: Simon Horman diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c index 2555816..260b9ef 100644 --- a/net/netfilter/ipvs/ip_vs_core.c +++ b/net/netfilter/ipvs/ip_vs_core.c @@ -1924,6 +1924,7 @@ protocol_fail: control_fail: ip_vs_estimator_net_cleanup(net); estimator_fail: + net->ipvs = NULL; return -ENOMEM; } @@ -1936,6 +1937,7 @@ static void __net_exit __ip_vs_cleanup(struct net *net) ip_vs_control_net_cleanup(net); ip_vs_estimator_net_cleanup(net); IP_VS_DBG(2, "ipvs netns %d released\n", net_ipvs(net)->gen); + net->ipvs = NULL; } static void __net_exit __ip_vs_dev_cleanup(struct net *net) -- cgit v0.10.2 From 5d384574e8bceb9bada323da8044ca43e621886b Mon Sep 17 00:00:00 2001 From: Thadeu Lima de Souza Cascardo Date: Wed, 25 Apr 2012 07:32:11 +0000 Subject: ehea: fix allmulticast support There was a bug in the mask of regtype parameter for registering a multicast filter. It was ignoring the scope bit, which was wrongly being used for all filters. The SCOPE_ALL value adds a filter that allows all multicast packets and ignores the MAC parameter, just what allmulticast needs. The normals filters, however, should not use SCOPE_ALL. Signed-off-by: Thadeu Lima de Souza Cascardo Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/ibm/ehea/ehea_main.c b/drivers/net/ethernet/ibm/ehea/ehea_main.c index acf34b6..9dcb5fd 100644 --- a/drivers/net/ethernet/ibm/ehea/ehea_main.c +++ b/drivers/net/ethernet/ibm/ehea/ehea_main.c @@ -290,16 +290,18 @@ static void ehea_update_bcmc_registrations(void) arr[i].adh = adapter->handle; arr[i].port_id = port->logical_port_id; - arr[i].reg_type = EHEA_BCMC_SCOPE_ALL | - EHEA_BCMC_MULTICAST | + arr[i].reg_type = EHEA_BCMC_MULTICAST | EHEA_BCMC_UNTAGGED; + if (mc_entry->macaddr == 0) + arr[i].reg_type |= EHEA_BCMC_SCOPE_ALL; arr[i++].macaddr = mc_entry->macaddr; arr[i].adh = adapter->handle; arr[i].port_id = port->logical_port_id; - arr[i].reg_type = EHEA_BCMC_SCOPE_ALL | - EHEA_BCMC_MULTICAST | + arr[i].reg_type = EHEA_BCMC_MULTICAST | EHEA_BCMC_VLANID_ALL; + if (mc_entry->macaddr == 0) + arr[i].reg_type |= EHEA_BCMC_SCOPE_ALL; arr[i++].macaddr = mc_entry->macaddr; num_registrations -= 2; } @@ -1838,8 +1840,9 @@ static u64 ehea_multicast_reg_helper(struct ehea_port *port, u64 mc_mac_addr, u64 hret; u8 reg_type; - reg_type = EHEA_BCMC_SCOPE_ALL | EHEA_BCMC_MULTICAST - | EHEA_BCMC_UNTAGGED; + reg_type = EHEA_BCMC_MULTICAST | EHEA_BCMC_UNTAGGED; + if (mc_mac_addr == 0) + reg_type |= EHEA_BCMC_SCOPE_ALL; hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, port->logical_port_id, @@ -1847,8 +1850,9 @@ static u64 ehea_multicast_reg_helper(struct ehea_port *port, u64 mc_mac_addr, if (hret) goto out; - reg_type = EHEA_BCMC_SCOPE_ALL | EHEA_BCMC_MULTICAST - | EHEA_BCMC_VLANID_ALL; + reg_type = EHEA_BCMC_MULTICAST | EHEA_BCMC_VLANID_ALL; + if (mc_mac_addr == 0) + reg_type |= EHEA_BCMC_SCOPE_ALL; hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, port->logical_port_id, @@ -1898,7 +1902,7 @@ static void ehea_allmulti(struct net_device *dev, int enable) netdev_err(dev, "failed enabling IFF_ALLMULTI\n"); } - } else + } else { if (!enable) { /* Disable ALLMULTI */ hret = ehea_multicast_reg_helper(port, 0, H_DEREG_BCMC); @@ -1908,6 +1912,7 @@ static void ehea_allmulti(struct net_device *dev, int enable) netdev_err(dev, "failed disabling IFF_ALLMULTI\n"); } + } } static void ehea_add_multicast_entry(struct ehea_port *port, u8 *mc_mac_addr) @@ -2463,6 +2468,7 @@ static int ehea_down(struct net_device *dev) return 0; ehea_drop_multicast_list(dev); + ehea_allmulti(dev, 0); ehea_broadcast_reg_helper(port, H_DEREG_BCMC); ehea_free_interrupts(dev); diff --git a/drivers/net/ethernet/ibm/ehea/ehea_phyp.h b/drivers/net/ethernet/ibm/ehea/ehea_phyp.h index 52c456e..8364815 100644 --- a/drivers/net/ethernet/ibm/ehea/ehea_phyp.h +++ b/drivers/net/ethernet/ibm/ehea/ehea_phyp.h @@ -450,7 +450,7 @@ u64 ehea_h_modify_ehea_port(const u64 adapter_handle, const u16 port_num, void *cb_addr); #define H_REGBCMC_PN EHEA_BMASK_IBM(48, 63) -#define H_REGBCMC_REGTYPE EHEA_BMASK_IBM(61, 63) +#define H_REGBCMC_REGTYPE EHEA_BMASK_IBM(60, 63) #define H_REGBCMC_MACADDR EHEA_BMASK_IBM(16, 63) #define H_REGBCMC_VLANID EHEA_BMASK_IBM(52, 63) -- cgit v0.10.2 From 47d59d01322f60d1c46fdf2650e0613daa8ce637 Mon Sep 17 00:00:00 2001 From: Thadeu Lima de Souza Cascardo Date: Wed, 25 Apr 2012 07:32:12 +0000 Subject: ehea: fix promiscuous mode commit a4910b744486254cfa61995954c118fb2283c4fd has broken promiscuous mode, which is never set. port->promisc just reflects the last setting of PROMISCUOUS mode to avoid doing an extra hypercall when it's already set. However, since it may fail because of hypervisor permissions, we should still respect the multicast settings and not simply exit after setting promiscuous mode. Signed-off-by: Thadeu Lima de Souza Cascardo Cc: Breno Leitao Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/ibm/ehea/ehea_main.c b/drivers/net/ethernet/ibm/ehea/ehea_main.c index 9dcb5fd..c9069a2 100644 --- a/drivers/net/ethernet/ibm/ehea/ehea_main.c +++ b/drivers/net/ethernet/ibm/ehea/ehea_main.c @@ -1946,11 +1946,7 @@ static void ehea_set_multicast_list(struct net_device *dev) struct netdev_hw_addr *ha; int ret; - if (port->promisc) { - ehea_promiscuous(dev, 1); - return; - } - ehea_promiscuous(dev, 0); + ehea_promiscuous(dev, !!(dev->flags & IFF_PROMISC)); if (dev->flags & IFF_ALLMULTI) { ehea_allmulti(dev, 1); -- cgit v0.10.2 From e48b5e825f9c471cbcbfd934a4c2df27e9d39635 Mon Sep 17 00:00:00 2001 From: John Stultz Date: Tue, 24 Apr 2012 13:43:35 -0700 Subject: rtc: Fix possible null pointer dereference in rtc-mpc5121.c Mark Loard pointed out: "For example, this beauty from rtc-mpc5121.c in the same update: ... rtc->rtc = rtc_device_register("mpc5200-rtc", &op->dev, &mpc5200_rtc_ops, THIS_MODULE); ... rtc->rtc->uie_unsupported = 1; // <<<< Ooops NULL pointer >>>> if (IS_ERR(rtc->rtc)) { // <<<< this needs to be earlier >>>> err = PTR_ERR(rtc->rtc); goto out_free_irq; } ..." This patch moves setting the uie_unsupported flag to after we validate the rtc->rtc pointer to resolve this. Reported by: Mark Lord Signed-off-by: John Stultz Link: http://lkml.kernel.org/r/1335300215-21427-1-git-send-email-john.stultz@linaro.org Signed-off-by: Thomas Gleixner diff --git a/drivers/rtc/rtc-mpc5121.c b/drivers/rtc/rtc-mpc5121.c index 42f5f82..029e421 100644 --- a/drivers/rtc/rtc-mpc5121.c +++ b/drivers/rtc/rtc-mpc5121.c @@ -360,12 +360,11 @@ static int __devinit mpc5121_rtc_probe(struct platform_device *op) &mpc5200_rtc_ops, THIS_MODULE); } - rtc->rtc->uie_unsupported = 1; - if (IS_ERR(rtc->rtc)) { err = PTR_ERR(rtc->rtc); goto out_free_irq; } + rtc->rtc->uie_unsupported = 1; return 0; -- cgit v0.10.2 From 0848e4043014631d792a66266d6d7d64a7f21da5 Mon Sep 17 00:00:00 2001 From: "alex.bluesman.smirnov@gmail.com" Date: Wed, 25 Apr 2012 23:24:56 +0000 Subject: 6lowpan: fix segmentation fault caused by mlme request Add nescesary mlme callbacks to satisfy "iz list" request from user space. Due to 6lowpan device doesn't have its own phy, mlme implemented as a pipe to a real phy to which 6lowpan is attached. Signed-off-by: Alexander Smirnov Signed-off-by: David S. Miller diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c index 3685158..f6b1694 100644 --- a/net/ieee802154/6lowpan.c +++ b/net/ieee802154/6lowpan.c @@ -1044,6 +1044,24 @@ static void lowpan_dev_free(struct net_device *dev) free_netdev(dev); } +static struct wpan_phy *lowpan_get_phy(const struct net_device *dev) +{ + struct net_device *real_dev = lowpan_dev_info(dev)->real_dev; + return ieee802154_mlme_ops(real_dev)->get_phy(real_dev); +} + +static u16 lowpan_get_pan_id(const struct net_device *dev) +{ + struct net_device *real_dev = lowpan_dev_info(dev)->real_dev; + return ieee802154_mlme_ops(real_dev)->get_pan_id(real_dev); +} + +static u16 lowpan_get_short_addr(const struct net_device *dev) +{ + struct net_device *real_dev = lowpan_dev_info(dev)->real_dev; + return ieee802154_mlme_ops(real_dev)->get_short_addr(real_dev); +} + static struct header_ops lowpan_header_ops = { .create = lowpan_header_create, }; @@ -1053,6 +1071,12 @@ static const struct net_device_ops lowpan_netdev_ops = { .ndo_set_mac_address = eth_mac_addr, }; +static struct ieee802154_mlme_ops lowpan_mlme = { + .get_pan_id = lowpan_get_pan_id, + .get_phy = lowpan_get_phy, + .get_short_addr = lowpan_get_short_addr, +}; + static void lowpan_setup(struct net_device *dev) { pr_debug("(%s)\n", __func__); @@ -1070,6 +1094,7 @@ static void lowpan_setup(struct net_device *dev) dev->netdev_ops = &lowpan_netdev_ops; dev->header_ops = &lowpan_header_ops; + dev->ml_priv = &lowpan_mlme; dev->destructor = lowpan_dev_free; } -- cgit v0.10.2 From 8deff4af8745561efd2be34ee30cc57a6f0107c6 Mon Sep 17 00:00:00 2001 From: "alex.bluesman.smirnov@gmail.com" Date: Wed, 25 Apr 2012 23:24:57 +0000 Subject: 6lowpan: clean up fragments list if module unloaded Clean all the pending fragments and relative timers if 6lowpan link is going to be deleted. Signed-off-by: Alexander Smirnov Signed-off-by: David S. Miller diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c index f6b1694..b3021f7 100644 --- a/net/ieee802154/6lowpan.c +++ b/net/ieee802154/6lowpan.c @@ -1177,11 +1177,20 @@ static void lowpan_dellink(struct net_device *dev, struct list_head *head) { struct lowpan_dev_info *lowpan_dev = lowpan_dev_info(dev); struct net_device *real_dev = lowpan_dev->real_dev; - struct lowpan_dev_record *entry; - struct lowpan_dev_record *tmp; + struct lowpan_dev_record *entry, *tmp; + struct lowpan_fragment *frame, *tframe; ASSERT_RTNL(); + spin_lock(&flist_lock); + list_for_each_entry_safe(frame, tframe, &lowpan_fragments, list) { + del_timer(&frame->timer); + list_del(&frame->list); + dev_kfree_skb(frame->skb); + kfree(frame); + } + spin_unlock(&flist_lock); + mutex_lock(&lowpan_dev_info(dev)->dev_list_mtx); list_for_each_entry_safe(entry, tmp, &lowpan_devices, list) { if (entry->ldev == dev) { -- cgit v0.10.2 From 768f7c7c121e80f458a9d013b2e8b169e5dfb1e5 Mon Sep 17 00:00:00 2001 From: "alex.bluesman.smirnov@gmail.com" Date: Wed, 25 Apr 2012 23:24:58 +0000 Subject: 6lowpan: add missing spin_lock_init() Add missing spin_lock_init() for frames list lock. Signed-off-by: Alexander Smirnov Signed-off-by: David S. Miller diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c index b3021f7..840821b 100644 --- a/net/ieee802154/6lowpan.c +++ b/net/ieee802154/6lowpan.c @@ -1168,6 +1168,8 @@ static int lowpan_newlink(struct net *src_net, struct net_device *dev, list_add_tail(&entry->list, &lowpan_devices); mutex_unlock(&lowpan_dev_info(dev)->dev_list_mtx); + spin_lock_init(&flist_lock); + register_netdevice(dev); return 0; -- cgit v0.10.2 From 1bb57e940e1958e40d51f2078f50c3a96a9b2d75 Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Wed, 25 Apr 2012 14:32:09 +0000 Subject: dl2k: Clean up rio_ioctl The dl2k driver's rio_ioctl call has a few issues: - No permissions checking - Implements SIOCGMIIREG and SIOCGMIIREG using the SIOCDEVPRIVATE numbers - Has a few ioctls that may have been used for debugging at one point but have no place in the kernel proper. This patch removes all but the MII ioctls, renumbers them to use the standard ones, and adds the proper permission check for SIOCSMIIREG. We can also get rid of the dl2k-specific struct mii_data in favor of the generic struct mii_ioctl_data. Since we have the phyid on hand, we can add the SIOCGMIIPHY ioctl too. Most of the MII code for the driver could probably be converted to use the generic MII library but I don't have a device to test the results. Reported-by: Stephan Mueller Signed-off-by: Jeff Mahoney Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/dlink/dl2k.c b/drivers/net/ethernet/dlink/dl2k.c index b2dc2c8..2e09edb 100644 --- a/drivers/net/ethernet/dlink/dl2k.c +++ b/drivers/net/ethernet/dlink/dl2k.c @@ -1259,55 +1259,21 @@ rio_ioctl (struct net_device *dev, struct ifreq *rq, int cmd) { int phy_addr; struct netdev_private *np = netdev_priv(dev); - struct mii_data *miidata = (struct mii_data *) &rq->ifr_ifru; - - struct netdev_desc *desc; - int i; + struct mii_ioctl_data *miidata = if_mii(rq); phy_addr = np->phy_addr; switch (cmd) { - case SIOCDEVPRIVATE: - break; - - case SIOCDEVPRIVATE + 1: - miidata->out_value = mii_read (dev, phy_addr, miidata->reg_num); + case SIOCGMIIPHY: + miidata->phy_id = phy_addr; break; - case SIOCDEVPRIVATE + 2: - mii_write (dev, phy_addr, miidata->reg_num, miidata->in_value); + case SIOCGMIIREG: + miidata->val_out = mii_read (dev, phy_addr, miidata->reg_num); break; - case SIOCDEVPRIVATE + 3: - break; - case SIOCDEVPRIVATE + 4: - break; - case SIOCDEVPRIVATE + 5: - netif_stop_queue (dev); + case SIOCSMIIREG: + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + mii_write (dev, phy_addr, miidata->reg_num, miidata->val_in); break; - case SIOCDEVPRIVATE + 6: - netif_wake_queue (dev); - break; - case SIOCDEVPRIVATE + 7: - printk - ("tx_full=%x cur_tx=%lx old_tx=%lx cur_rx=%lx old_rx=%lx\n", - netif_queue_stopped(dev), np->cur_tx, np->old_tx, np->cur_rx, - np->old_rx); - break; - case SIOCDEVPRIVATE + 8: - printk("TX ring:\n"); - for (i = 0; i < TX_RING_SIZE; i++) { - desc = &np->tx_ring[i]; - printk - ("%02x:cur:%08x next:%08x status:%08x frag1:%08x frag0:%08x", - i, - (u32) (np->tx_ring_dma + i * sizeof (*desc)), - (u32)le64_to_cpu(desc->next_desc), - (u32)le64_to_cpu(desc->status), - (u32)(le64_to_cpu(desc->fraginfo) >> 32), - (u32)le64_to_cpu(desc->fraginfo)); - printk ("\n"); - } - printk ("\n"); - break; - default: return -EOPNOTSUPP; } diff --git a/drivers/net/ethernet/dlink/dl2k.h b/drivers/net/ethernet/dlink/dl2k.h index ba0adca..30c2da3 100644 --- a/drivers/net/ethernet/dlink/dl2k.h +++ b/drivers/net/ethernet/dlink/dl2k.h @@ -365,13 +365,6 @@ struct ioctl_data { char *data; }; -struct mii_data { - __u16 reserved; - __u16 reg_num; - __u16 in_value; - __u16 out_value; -}; - /* The Rx and Tx buffer descriptors. */ struct netdev_desc { __le64 next_desc; -- cgit v0.10.2 From 07d69d4238418746a7b85c5d05ec17c658a2a390 Mon Sep 17 00:00:00 2001 From: Paolo Pisati Date: Mon, 23 Apr 2012 04:05:20 +0000 Subject: smsc95xx: mark link down on startup and let PHY interrupt deal with carrier changes Without this patch sysfs reports the cable as present flag@flag-desktop:~$ cat /sys/class/net/eth0/carrier 1 while it's not: flag@flag-desktop:~$ sudo mii-tool eth0 eth0: no link Tested on my Beagle XM. v2: added mantainer to the list of recipient Signed-off-by: Paolo Pisati Acked-by: Steve Glendinning Signed-off-by: David S. Miller diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index 53a1ba5..94ae669 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -1192,7 +1192,7 @@ static const struct driver_info smsc95xx_info = { .rx_fixup = smsc95xx_rx_fixup, .tx_fixup = smsc95xx_tx_fixup, .status = smsc95xx_status, - .flags = FLAG_ETHER | FLAG_SEND_ZLP, + .flags = FLAG_ETHER | FLAG_SEND_ZLP | FLAG_LINK_INTR, }; static const struct usb_device_id products[] = { -- cgit v0.10.2 From eb95308ee2a69403909e111837b9068c64cfc349 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Tue, 17 Apr 2012 13:38:40 +0200 Subject: sched: Fix more load-balancing fallout Commits 367456c756a6 ("sched: Ditch per cgroup task lists for load-balancing") and 5d6523ebd ("sched: Fix load-balance wreckage") left some more wreckage. By setting loop_max unconditionally to ->nr_running load-balancing could take a lot of time on very long runqueues (hackbench!). So keep the sysctl as max limit of the amount of tasks we'll iterate. Furthermore, the min load filter for migration completely fails with cgroups since inequality in per-cpu state can easily lead to such small loads :/ Furthermore the change to add new tasks to the tail of the queue instead of the head seems to have some effect.. not quite sure I understand why. Combined these fixes solve the huge hackbench regression reported by Tim when hackbench is ran in a cgroup. Reported-by: Tim Chen Acked-by: Tim Chen Signed-off-by: Peter Zijlstra Cc: Linus Torvalds Cc: Andrew Morton Link: http://lkml.kernel.org/r/1335365763.28150.267.camel@twins [ got rid of the CONFIG_PREEMPT tuning and made small readability edits ] Signed-off-by: Ingo Molnar diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 0d97ebd..e955364 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -784,7 +784,7 @@ account_entity_enqueue(struct cfs_rq *cfs_rq, struct sched_entity *se) update_load_add(&rq_of(cfs_rq)->load, se->load.weight); #ifdef CONFIG_SMP if (entity_is_task(se)) - list_add_tail(&se->group_node, &rq_of(cfs_rq)->cfs_tasks); + list_add(&se->group_node, &rq_of(cfs_rq)->cfs_tasks); #endif cfs_rq->nr_running++; } @@ -3215,6 +3215,8 @@ static int move_one_task(struct lb_env *env) static unsigned long task_h_load(struct task_struct *p); +static const unsigned int sched_nr_migrate_break = 32; + /* * move_tasks tries to move up to load_move weighted load from busiest to * this_rq, as part of a balancing operation within domain "sd". @@ -3242,7 +3244,7 @@ static int move_tasks(struct lb_env *env) /* take a breather every nr_migrate tasks */ if (env->loop > env->loop_break) { - env->loop_break += sysctl_sched_nr_migrate; + env->loop_break += sched_nr_migrate_break; env->flags |= LBF_NEED_BREAK; break; } @@ -3252,7 +3254,7 @@ static int move_tasks(struct lb_env *env) load = task_h_load(p); - if (load < 16 && !env->sd->nr_balance_failed) + if (sched_feat(LB_MIN) && load < 16 && !env->sd->nr_balance_failed) goto next; if ((load / 2) > env->load_move) @@ -4407,7 +4409,7 @@ static int load_balance(int this_cpu, struct rq *this_rq, .dst_cpu = this_cpu, .dst_rq = this_rq, .idle = idle, - .loop_break = sysctl_sched_nr_migrate, + .loop_break = sched_nr_migrate_break, }; cpumask_copy(cpus, cpu_active_mask); @@ -4445,10 +4447,10 @@ redo: * correctly treated as an imbalance. */ env.flags |= LBF_ALL_PINNED; - env.load_move = imbalance; - env.src_cpu = busiest->cpu; - env.src_rq = busiest; - env.loop_max = busiest->nr_running; + env.load_move = imbalance; + env.src_cpu = busiest->cpu; + env.src_rq = busiest; + env.loop_max = min_t(unsigned long, sysctl_sched_nr_migrate, busiest->nr_running); more_balance: local_irq_save(flags); diff --git a/kernel/sched/features.h b/kernel/sched/features.h index e61fd73..de00a48 100644 --- a/kernel/sched/features.h +++ b/kernel/sched/features.h @@ -68,3 +68,4 @@ SCHED_FEAT(TTWU_QUEUE, true) SCHED_FEAT(FORCE_SD_OVERLAP, false) SCHED_FEAT(RT_RUNTIME_SHARE, true) +SCHED_FEAT(LB_MIN, false) -- cgit v0.10.2 From fb2cf2c660971bea0ad86a9a5c19ad39eab61344 Mon Sep 17 00:00:00 2001 From: "he, bo" Date: Wed, 25 Apr 2012 19:59:21 +0800 Subject: sched: Fix OOPS when build_sched_domains() percpu allocation fails Under extreme memory used up situations, percpu allocation might fail. We hit it when system goes to suspend-to-ram, causing a kworker panic: EIP: [] build_sched_domains+0x23a/0xad0 Kernel panic - not syncing: Fatal exception Pid: 3026, comm: kworker/u:3 3.0.8-137473-gf42fbef #1 Call Trace: [] panic+0x66/0x16c [...] [] partition_sched_domains+0x287/0x4b0 [] cpuset_update_active_cpus+0x1fe/0x210 [] cpuset_cpu_inactive+0x1d/0x30 [...] With this fix applied build_sched_domains() will return -ENOMEM and the suspend attempt fails. Signed-off-by: he, bo Reviewed-by: Zhang, Yanmin Reviewed-by: Srivatsa S. Bhat Signed-off-by: Peter Zijlstra Cc: Linus Torvalds Cc: Andrew Morton Cc: Link: http://lkml.kernel.org/r/1335355161.5892.17.camel@hebo [ So, we fail to deallocate a CPU because we cannot allocate RAM :-/ I don't like that kind of sad behavior but nevertheless it should not crash under high memory load. ] Signed-off-by: Ingo Molnar diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 4603b9d..0533a68 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -6405,16 +6405,26 @@ static void __sdt_free(const struct cpumask *cpu_map) struct sd_data *sdd = &tl->data; for_each_cpu(j, cpu_map) { - struct sched_domain *sd = *per_cpu_ptr(sdd->sd, j); - if (sd && (sd->flags & SD_OVERLAP)) - free_sched_groups(sd->groups, 0); - kfree(*per_cpu_ptr(sdd->sd, j)); - kfree(*per_cpu_ptr(sdd->sg, j)); - kfree(*per_cpu_ptr(sdd->sgp, j)); + struct sched_domain *sd; + + if (sdd->sd) { + sd = *per_cpu_ptr(sdd->sd, j); + if (sd && (sd->flags & SD_OVERLAP)) + free_sched_groups(sd->groups, 0); + kfree(*per_cpu_ptr(sdd->sd, j)); + } + + if (sdd->sg) + kfree(*per_cpu_ptr(sdd->sg, j)); + if (sdd->sgp) + kfree(*per_cpu_ptr(sdd->sgp, j)); } free_percpu(sdd->sd); + sdd->sd = NULL; free_percpu(sdd->sg); + sdd->sg = NULL; free_percpu(sdd->sgp); + sdd->sgp = NULL; } } -- cgit v0.10.2 From 724b6daa13e100067c30cfc4d1ad06629609dc4e Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Wed, 11 Apr 2012 11:54:13 +1000 Subject: perf: Fix perf_event_for_each() to use sibling In perf_event_for_each() we call a function on an event, and then iterate over the siblings of the event. However we don't call the function on the siblings, we call it repeatedly on the original event - it seems "obvious" that we should be calling it with sibling as the argument. It looks like this broke in commit 75f937f24bd9 ("Fix ctx->mutex vs counter->mutex inversion"). The only effect of the bug is that the PERF_IOC_FLAG_GROUP parameter to the ioctls doesn't work. Signed-off-by: Michael Ellerman Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/1334109253-31329-1-git-send-email-michael@ellerman.id.au Signed-off-by: Ingo Molnar diff --git a/kernel/events/core.c b/kernel/events/core.c index a6a9ec4..fd126f8 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -3183,7 +3183,7 @@ static void perf_event_for_each(struct perf_event *event, perf_event_for_each_child(event, func); func(event); list_for_each_entry(sibling, &event->sibling_list, group_entry) - perf_event_for_each_child(event, func); + perf_event_for_each_child(sibling, func); mutex_unlock(&ctx->mutex); } -- cgit v0.10.2 From d08c9a33b4aa6665b0ee3c4d1b57715fa0eae2a2 Mon Sep 17 00:00:00 2001 From: "Mingarelli, Thomas" Date: Tue, 3 Apr 2012 05:37:01 +0000 Subject: hpwdt: Only BYTE reads/writes to WD Timer port 0x72 This patch is to correct the use of the iLO port 0x72 usage. The port 0x72 is a byte size write/read and hpwdt is currently writing a WORD. Signed-off by: Thomas Mingarelli Signed-off-by: Wim Van Sebroeck diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c index cbc7cee..9f13b89 100644 --- a/drivers/watchdog/hpwdt.c +++ b/drivers/watchdog/hpwdt.c @@ -435,16 +435,16 @@ static void hpwdt_start(void) { reload = SECS_TO_TICKS(soft_margin); iowrite16(reload, hpwdt_timer_reg); - iowrite16(0x85, hpwdt_timer_con); + iowrite8(0x85, hpwdt_timer_con); } static void hpwdt_stop(void) { unsigned long data; - data = ioread16(hpwdt_timer_con); + data = ioread8(hpwdt_timer_con); data &= 0xFE; - iowrite16(data, hpwdt_timer_con); + iowrite8(data, hpwdt_timer_con); } static void hpwdt_ping(void) -- cgit v0.10.2 From c3e40a9972428d6e2d8e287ed0233a57a218c30f Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Wed, 25 Apr 2012 13:44:20 -0700 Subject: hwmon: (fam15h_power) Fix pci_device_id array pci_match_id() takes an *array* of IDs which must be properly zero- terminated. Reported-by: Ben Hutchings Cc: stable@vger.kernel.org # 3.0+: 00250ec hwmon: fam15h_power: fix bogus values Cc: stable@vger.kernel.org # 3.0+ Signed-off-by: Guenter Roeck Acked-by: Jean Delvare diff --git a/drivers/hwmon/fam15h_power.c b/drivers/hwmon/fam15h_power.c index 37a8fc9..e8e18ca 100644 --- a/drivers/hwmon/fam15h_power.c +++ b/drivers/hwmon/fam15h_power.c @@ -128,17 +128,20 @@ static bool __devinit fam15h_power_is_internal_node0(struct pci_dev *f4) * counter saturations resulting in bogus power readings. * We correct this value ourselves to cope with older BIOSes. */ +static DEFINE_PCI_DEVICE_TABLE(affected_device) = { + { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_NB_F4) }, + { 0 } +}; + static void __devinit tweak_runavg_range(struct pci_dev *pdev) { u32 val; - const struct pci_device_id affected_device = { - PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_NB_F4) }; /* * let this quirk apply only to the current version of the * northbridge, since future versions may change the behavior */ - if (!pci_match_id(&affected_device, pdev)) + if (!pci_match_id(affected_device, pdev)) return; pci_bus_read_config_dword(pdev->bus, -- cgit v0.10.2 From 1aba1567637b93eee32253b42deaaad381c3175b Mon Sep 17 00:00:00 2001 From: Weston Andros Adamson Date: Tue, 24 Apr 2012 16:50:37 -0400 Subject: nfs4: fix referrals on mounts that use IPv6 addrs All referrals (IPv4 addr, IPv6 addr, and DNS) are broken on mounts of IPv6 addresses, because validation code uses a path that is parsed from the dev_name (":") by splitting on the first colon and colons are used in IPv6 addrs. This patch ignores colons within IPv6 addresses that are escaped by '[' and ']'. Signed-off-by: Weston Andros Adamson Signed-off-by: Trond Myklebust diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c index 9c8eca3..7483a17 100644 --- a/fs/nfs/nfs4namespace.c +++ b/fs/nfs/nfs4namespace.c @@ -52,6 +52,30 @@ Elong: } /* + * return the path component of ":" + * nfspath - the ":" string + * end - one past the last char that could contain ":" + * returns NULL on failure + */ +static char *nfs_path_component(const char *nfspath, const char *end) +{ + char *p; + + if (*nfspath == '[') { + /* parse [] escaped IPv6 addrs */ + p = strchr(nfspath, ']'); + if (p != NULL && ++p < end && *p == ':') + return p + 1; + } else { + /* otherwise split on first colon */ + p = strchr(nfspath, ':'); + if (p != NULL && p < end) + return p + 1; + } + return NULL; +} + +/* * Determine the mount path as a string */ static char *nfs4_path(struct dentry *dentry, char *buffer, ssize_t buflen) @@ -59,9 +83,9 @@ static char *nfs4_path(struct dentry *dentry, char *buffer, ssize_t buflen) char *limit; char *path = nfs_path(&limit, dentry, buffer, buflen); if (!IS_ERR(path)) { - char *colon = strchr(path, ':'); - if (colon && colon < limit) - path = colon + 1; + char *path_component = nfs_path_component(path, limit); + if (path_component) + return path_component; } return path; } -- cgit v0.10.2 From 9526b2b6d6b9f183b66cf21c4afa6e79d5a14f44 Mon Sep 17 00:00:00 2001 From: Sachin Bhamare Date: Fri, 30 Mar 2012 14:29:59 -0700 Subject: pnfs-obj: Remove unused variable from objlayout_get_deviceinfo() Local variable 'sb' was not being used in objlayout_get_deviceinfo(). Signed-off-by: Sachin Bhamare Signed-off-by: Boaz Harrosh Signed-off-by: Trond Myklebust diff --git a/fs/nfs/objlayout/objlayout.c b/fs/nfs/objlayout/objlayout.c index 8d45f1c..595c5fc 100644 --- a/fs/nfs/objlayout/objlayout.c +++ b/fs/nfs/objlayout/objlayout.c @@ -604,7 +604,6 @@ int objlayout_get_deviceinfo(struct pnfs_layout_hdr *pnfslay, { struct objlayout_deviceinfo *odi; struct pnfs_device pd; - struct super_block *sb; struct page *page, **pages; u32 *p; int err; @@ -623,7 +622,6 @@ int objlayout_get_deviceinfo(struct pnfs_layout_hdr *pnfslay, pd.pglen = PAGE_SIZE; pd.mincount = 0; - sb = pnfslay->plh_inode->i_sb; err = nfs4_proc_getdeviceinfo(NFS_SERVER(pnfslay->plh_inode), &pd); dprintk("%s nfs_getdeviceinfo returned %d\n", __func__, err); if (err) -- cgit v0.10.2 From e5265a0c587423bbd21a6b39a572cecff16b9346 Mon Sep 17 00:00:00 2001 From: Andy Adamson Date: Sat, 14 Apr 2012 03:56:35 -0400 Subject: NFSv4.1 fix page number calculation bug for filelayout decode buffers Signed-off-by: Andy Adamson Signed-off-by: Trond Myklebust diff --git a/fs/nfs/nfs4filelayoutdev.c b/fs/nfs/nfs4filelayoutdev.c index a866bbd..c9cff9a 100644 --- a/fs/nfs/nfs4filelayoutdev.c +++ b/fs/nfs/nfs4filelayoutdev.c @@ -699,7 +699,7 @@ get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id, gfp_t gfp_fla * GETDEVICEINFO's maxcount */ max_resp_sz = server->nfs_client->cl_session->fc_attrs.max_resp_sz; - max_pages = max_resp_sz >> PAGE_SHIFT; + max_pages = nfs_page_array_len(0, max_resp_sz); dprintk("%s inode %p max_resp_sz %u max_pages %d\n", __func__, inode, max_resp_sz, max_pages); diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index b5d4515..38512bc 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -587,7 +587,7 @@ send_layoutget(struct pnfs_layout_hdr *lo, /* allocate pages for xdr post processing */ max_resp_sz = server->nfs_client->cl_session->fc_attrs.max_resp_sz; - max_pages = max_resp_sz >> PAGE_SHIFT; + max_pages = nfs_page_array_len(0, max_resp_sz); pages = kcalloc(max_pages, sizeof(struct page *), gfp_flags); if (!pages) -- cgit v0.10.2 From 10bd295a0b6488ebe634b72a11d8986bd3af3819 Mon Sep 17 00:00:00 2001 From: Jim Rees Date: Mon, 9 Apr 2012 22:33:39 -0400 Subject: fix page number calculation bug for block layout decode buffer Signed-off-by: Jim Rees Suggested-by: Andy Adamson Suggested-by: Fred Isaman Signed-off-by: Trond Myklebust diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c index 9c94297..7f6a23f 100644 --- a/fs/nfs/blocklayout/blocklayout.c +++ b/fs/nfs/blocklayout/blocklayout.c @@ -38,6 +38,8 @@ #include /* various write calls */ #include +#include "../pnfs.h" +#include "../internal.h" #include "blocklayout.h" #define NFSDBG_FACILITY NFSDBG_PNFS_LD @@ -868,7 +870,7 @@ nfs4_blk_get_deviceinfo(struct nfs_server *server, const struct nfs_fh *fh, * GETDEVICEINFO's maxcount */ max_resp_sz = server->nfs_client->cl_session->fc_attrs.max_resp_sz; - max_pages = max_resp_sz >> PAGE_SHIFT; + max_pages = nfs_page_array_len(0, max_resp_sz); dprintk("%s max_resp_sz %u max_pages %d\n", __func__, max_resp_sz, max_pages); -- cgit v0.10.2 From 6651819b4b4fc3caa6964c5d825eb4bb996f3905 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Sun, 1 Apr 2012 19:16:18 +0200 Subject: drm/i915: handle input/output sdvo timings separately in mode_set We seem to have a decent confusion between the output timings and the input timings of the sdvo encoder. If I understand the code correctly, we use the original mode unchanged for the output timings, safe for the lvds case. And we should use the adjusted mode for input timings. Clarify the situation by adding an explicit output_dtd to the sdvo mode_set function and streamline the code-flow by moving the input and output mode setting in the sdvo encode together. Furthermore testing showed that the sdvo input timing needs the unadjusted dotclock, the sdvo chip will automatically compute the required pixel multiplier to get a dotclock above 100 MHz. Fix this up when converting a drm mode to an sdvo dtd. This regression was introduced in commit c74696b9c890074c1e1ee3d7496fc71eb3680ced Author: Pavel Roskin Date: Thu Sep 2 14:46:34 2010 -0400 i915: revert some checks added by commit 32aad86f particularly the following hunk: diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index 093e914..62d22ae 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -1122,11 +1123,9 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder, /* We have tried to get input timing in mode_fixup, and filled into adjusted_mode */ - if (intel_sdvo->is_tv || intel_sdvo->is_lvds) { - intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode); + intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode); + if (intel_sdvo->is_tv || intel_sdvo->is_lvds) input_dtd.part2.sdvo_flags = intel_sdvo->sdvo_flags; - } else - intel_sdvo_get_dtd_from_mode(&input_dtd, mode); /* If it's a TV, we already set the output timing in mode_fixup. * Otherwise, the output timing is equal to the input timing. Due to questions raised in review, below a more elaborate analysis of the bug at hand: Sdvo seems to have two timings, one is the output timing which will be sent over whatever is connected on the other side of the sdvo chip (panel, hdmi screen, tv), the other is the input timing which will be generated by the gmch pipe. It looks like sdvo is expected to scale between the two. To make things slightly more complicated, we have a bunch of special cases: - For lvds panel we always use a fixed output timing, namely intel_sdvo->sdvo_lvds_fixed_mode, hence that special case. - Sdvo has an interface to generate a preferred input timing for a given output timing. This is the confusing thing that I've tried to clear up with the follow-on patches. - A special requirement is that the input pixel clock needs to be between 100MHz and 200MHz (likely to keep it within the electromechanical design range of PCIe), 270MHz on later gen4+. Lower pixel clocks are doubled/quadrupled. The thing this patch tries to fix is that the pipe needs to be explicitly instructed to double/quadruple the pixels and needs the correspondingly higher pixel clock, whereas the sdvo adaptor seems to do that itself and needs the unadjusted pixel clock. For the sdvo encode side we already set the pixel mutliplier with a different command (0x21). This patch tries to fix this mess by: - Keeping the output mode timing in the unadjusted plain mode, safe for the lvds case. - Storing the input timing in the adjusted_mode with the adjusted pixel clock. This way we don't need to frob around with the core crtc mode set code. - Fixing up the pixelclock when constructing the sdvo dtd timing struct. This is why the first hunk of the patch is an integral part of the series. - Dropping the is_tv special case because input_dtd is equivalent to adjusted_mode after these changes. Follow-up patches clear this up further (by simply ripping out intel_sdvo->input_dtd because it's not needed). v2: Extend commit message with an in-depth bug analysis. Reported-and-Tested-by: Bernard Blackham Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=48157 Reviewed-by: Jesse Barnes Cc: stable@kernel.org Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index e36b171..232d77d 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -731,6 +731,7 @@ static void intel_sdvo_get_dtd_from_mode(struct intel_sdvo_dtd *dtd, uint16_t width, height; uint16_t h_blank_len, h_sync_len, v_blank_len, v_sync_len; uint16_t h_sync_offset, v_sync_offset; + int mode_clock; width = mode->crtc_hdisplay; height = mode->crtc_vdisplay; @@ -745,7 +746,11 @@ static void intel_sdvo_get_dtd_from_mode(struct intel_sdvo_dtd *dtd, h_sync_offset = mode->crtc_hsync_start - mode->crtc_hblank_start; v_sync_offset = mode->crtc_vsync_start - mode->crtc_vblank_start; - dtd->part1.clock = mode->clock / 10; + mode_clock = mode->clock; + mode_clock /= intel_mode_get_pixel_multiplier(mode) ?: 1; + mode_clock /= 10; + dtd->part1.clock = mode_clock; + dtd->part1.h_active = width & 0xff; dtd->part1.h_blank = h_blank_len & 0xff; dtd->part1.h_high = (((width >> 8) & 0xf) << 4) | @@ -996,7 +1001,7 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder, struct intel_sdvo *intel_sdvo = to_intel_sdvo(encoder); u32 sdvox; struct intel_sdvo_in_out_map in_out; - struct intel_sdvo_dtd input_dtd; + struct intel_sdvo_dtd input_dtd, output_dtd; int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); int rate; @@ -1021,20 +1026,13 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder, intel_sdvo->attached_output)) return; - /* We have tried to get input timing in mode_fixup, and filled into - * adjusted_mode. - */ - if (intel_sdvo->is_tv || intel_sdvo->is_lvds) { - input_dtd = intel_sdvo->input_dtd; - } else { - /* Set the output timing to the screen */ - if (!intel_sdvo_set_target_output(intel_sdvo, - intel_sdvo->attached_output)) - return; - - intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode); - (void) intel_sdvo_set_output_timing(intel_sdvo, &input_dtd); - } + /* lvds has a special fixed output timing. */ + if (intel_sdvo->is_lvds) + intel_sdvo_get_dtd_from_mode(&output_dtd, + intel_sdvo->sdvo_lvds_fixed_mode); + else + intel_sdvo_get_dtd_from_mode(&output_dtd, mode); + (void) intel_sdvo_set_output_timing(intel_sdvo, &output_dtd); /* Set the input timing to the screen. Assume always input 0. */ if (!intel_sdvo_set_target_input(intel_sdvo)) @@ -1052,6 +1050,10 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder, !intel_sdvo_set_tv_format(intel_sdvo)) return; + /* We have tried to get input timing in mode_fixup, and filled into + * adjusted_mode. + */ + intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode); (void) intel_sdvo_set_input_timing(intel_sdvo, &input_dtd); switch (pixel_multiplier) { -- cgit v0.10.2 From cd0a2bfb77a3edeecd652081e0b1a163d3b0696b Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Wed, 18 Apr 2012 17:17:19 -0400 Subject: pci: frv architecture needs generic setup-bus infrastructure Otherwise we get this link failure for frv's defconfig: LD .tmp_vmlinux1 drivers/built-in.o: In function `pci_assign_resource': (.text+0xbf0c): undefined reference to `pci_cardbus_resource_alignment' drivers/built-in.o: In function `pci_setup': pci.c:(.init.text+0x174): undefined reference to `pci_realloc_get_opt' pci.c:(.init.text+0x1a0): undefined reference to `pci_realloc_get_opt' make[1]: *** [.tmp_vmlinux1] Error 1 Cc: David Howells Acked-by: Bjorn Helgaas Signed-off-by: Paul Gortmaker diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile index 083a49f..165274c 100644 --- a/drivers/pci/Makefile +++ b/drivers/pci/Makefile @@ -42,6 +42,7 @@ obj-$(CONFIG_UNICORE32) += setup-bus.o setup-irq.o obj-$(CONFIG_PARISC) += setup-bus.o obj-$(CONFIG_SUPERH) += setup-bus.o setup-irq.o obj-$(CONFIG_PPC) += setup-bus.o +obj-$(CONFIG_FRV) += setup-bus.o obj-$(CONFIG_MIPS) += setup-bus.o setup-irq.o obj-$(CONFIG_X86_VISWS) += setup-irq.o obj-$(CONFIG_MN10300) += setup-bus.o -- cgit v0.10.2 From bc856a62c8036330cb2d95e24756285c6d8ecba2 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Wed, 18 Apr 2012 22:32:24 -0400 Subject: blackfin: fix compile error in bfin-lq035q1-fb.c This file has an implicit dependency on GPIO stuff, showing up as the following build failure: drivers/video/bfin-lq035q1-fb.c:369:6: error: 'GPIOF_OUT_INIT_LOW' undeclared Other more global bfin build issues prevent an automated bisect, but it really doesn't matter - simply add in the appropriate header. Cc: Florian Tobias Schandinat Acked-by: Mike Frysinger Signed-off-by: Paul Gortmaker diff --git a/drivers/video/bfin-lq035q1-fb.c b/drivers/video/bfin-lq035q1-fb.c index 86922ac..353c02f 100644 --- a/drivers/video/bfin-lq035q1-fb.c +++ b/drivers/video/bfin-lq035q1-fb.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include -- cgit v0.10.2 From fa83af7e8f2936732459a2399df87a0b648b454d Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Wed, 18 Apr 2012 23:31:28 -0400 Subject: blackfin: fix ifdef fustercluck in mach-bf538/boards/ezkit.c This file has lots and lots of ifdef, around structure decls and structure usages. The failure issue was that we would build the BF538-EZKIT_defconfig and get: arch/blackfin/mach-bf538/boards/ezkit.c:924:3: error: 'bfin_lq035q1_device' undeclared here (not in a function) even though the same ifdef _appeared_ to enable both the struct declaration and the code that used it. Yet cpp was telling us we didn't have the struct, but we still had the usage of it. However, _appeared_ is the operative word. After marking all the anonymous #endif with their parent #ifdef config options, it was _then_ clear that there was a misplaced #endif that was hiding the struct declaration. The real guts of the patch boils down to this: -#endif +#endif /* CONFIG_MTD_M25P80 */ +#endif /* CONFIG_SPI_BFIN5XX */ [...] -#endif /* spi master and devices */ but since I had to tag the #endif with their respective #ifdef options to find this misplaced SPI endif, it would be silly to then go and delete them all. So they stay. Cc: Sonic Zhang Cc: Bob Liu Acked-by: Mike Frysinger Signed-off-by: Paul Gortmaker diff --git a/arch/blackfin/mach-bf538/boards/ezkit.c b/arch/blackfin/mach-bf538/boards/ezkit.c index 1633a6f..85038f5 100644 --- a/arch/blackfin/mach-bf538/boards/ezkit.c +++ b/arch/blackfin/mach-bf538/boards/ezkit.c @@ -38,7 +38,7 @@ static struct platform_device rtc_device = { .name = "rtc-bfin", .id = -1, }; -#endif +#endif /* CONFIG_RTC_DRV_BFIN */ #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) #ifdef CONFIG_SERIAL_BFIN_UART0 @@ -100,7 +100,7 @@ static struct platform_device bfin_uart0_device = { .platform_data = &bfin_uart0_peripherals, /* Passed to driver */ }, }; -#endif +#endif /* CONFIG_SERIAL_BFIN_UART0 */ #ifdef CONFIG_SERIAL_BFIN_UART1 static struct resource bfin_uart1_resources[] = { { @@ -148,7 +148,7 @@ static struct platform_device bfin_uart1_device = { .platform_data = &bfin_uart1_peripherals, /* Passed to driver */ }, }; -#endif +#endif /* CONFIG_SERIAL_BFIN_UART1 */ #ifdef CONFIG_SERIAL_BFIN_UART2 static struct resource bfin_uart2_resources[] = { { @@ -196,8 +196,8 @@ static struct platform_device bfin_uart2_device = { .platform_data = &bfin_uart2_peripherals, /* Passed to driver */ }, }; -#endif -#endif +#endif /* CONFIG_SERIAL_BFIN_UART2 */ +#endif /* CONFIG_SERIAL_BFIN */ #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE) #ifdef CONFIG_BFIN_SIR0 @@ -224,7 +224,7 @@ static struct platform_device bfin_sir0_device = { .num_resources = ARRAY_SIZE(bfin_sir0_resources), .resource = bfin_sir0_resources, }; -#endif +#endif /* CONFIG_BFIN_SIR0 */ #ifdef CONFIG_BFIN_SIR1 static struct resource bfin_sir1_resources[] = { { @@ -249,7 +249,7 @@ static struct platform_device bfin_sir1_device = { .num_resources = ARRAY_SIZE(bfin_sir1_resources), .resource = bfin_sir1_resources, }; -#endif +#endif /* CONFIG_BFIN_SIR1 */ #ifdef CONFIG_BFIN_SIR2 static struct resource bfin_sir2_resources[] = { { @@ -274,8 +274,8 @@ static struct platform_device bfin_sir2_device = { .num_resources = ARRAY_SIZE(bfin_sir2_resources), .resource = bfin_sir2_resources, }; -#endif -#endif +#endif /* CONFIG_BFIN_SIR2 */ +#endif /* CONFIG_BFIN_SIR */ #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE) #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART @@ -311,7 +311,7 @@ static struct platform_device bfin_sport0_uart_device = { .platform_data = &bfin_sport0_peripherals, /* Passed to driver */ }, }; -#endif +#endif /* CONFIG_SERIAL_BFIN_SPORT0_UART */ #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART static struct resource bfin_sport1_uart_resources[] = { { @@ -345,7 +345,7 @@ static struct platform_device bfin_sport1_uart_device = { .platform_data = &bfin_sport1_peripherals, /* Passed to driver */ }, }; -#endif +#endif /* CONFIG_SERIAL_BFIN_SPORT1_UART */ #ifdef CONFIG_SERIAL_BFIN_SPORT2_UART static struct resource bfin_sport2_uart_resources[] = { { @@ -379,7 +379,7 @@ static struct platform_device bfin_sport2_uart_device = { .platform_data = &bfin_sport2_peripherals, /* Passed to driver */ }, }; -#endif +#endif /* CONFIG_SERIAL_BFIN_SPORT2_UART */ #ifdef CONFIG_SERIAL_BFIN_SPORT3_UART static struct resource bfin_sport3_uart_resources[] = { { @@ -413,8 +413,8 @@ static struct platform_device bfin_sport3_uart_device = { .platform_data = &bfin_sport3_peripherals, /* Passed to driver */ }, }; -#endif -#endif +#endif /* CONFIG_SERIAL_BFIN_SPORT3_UART */ +#endif /* CONFIG_SERIAL_BFIN_SPORT */ #if defined(CONFIG_CAN_BFIN) || defined(CONFIG_CAN_BFIN_MODULE) static unsigned short bfin_can_peripherals[] = { @@ -452,7 +452,7 @@ static struct platform_device bfin_can_device = { .platform_data = &bfin_can_peripherals, /* Passed to driver */ }, }; -#endif +#endif /* CONFIG_CAN_BFIN */ /* * USB-LAN EzExtender board @@ -488,7 +488,7 @@ static struct platform_device smc91x_device = { .platform_data = &smc91x_info, }, }; -#endif +#endif /* CONFIG_SMC91X */ #if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE) /* all SPI peripherals info goes here */ @@ -518,7 +518,8 @@ static struct flash_platform_data bfin_spi_flash_data = { static struct bfin5xx_spi_chip spi_flash_chip_info = { .enable_dma = 0, /* use dma transfer with this chip*/ }; -#endif +#endif /* CONFIG_MTD_M25P80 */ +#endif /* CONFIG_SPI_BFIN5XX */ #if defined(CONFIG_TOUCHSCREEN_AD7879) || defined(CONFIG_TOUCHSCREEN_AD7879_MODULE) #include @@ -535,7 +536,7 @@ static const struct ad7879_platform_data bfin_ad7879_ts_info = { .gpio_export = 1, /* Export GPIO to gpiolib */ .gpio_base = -1, /* Dynamic allocation */ }; -#endif +#endif /* CONFIG_TOUCHSCREEN_AD7879 */ #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE) #include @@ -564,7 +565,7 @@ static struct platform_device bfin_lq035q1_device = { .platform_data = &bfin_lq035q1_data, }, }; -#endif +#endif /* CONFIG_FB_BFIN_LQ035Q1 */ static struct spi_board_info bf538_spi_board_info[] __initdata = { #if defined(CONFIG_MTD_M25P80) \ @@ -579,7 +580,7 @@ static struct spi_board_info bf538_spi_board_info[] __initdata = { .controller_data = &spi_flash_chip_info, .mode = SPI_MODE_3, }, -#endif +#endif /* CONFIG_MTD_M25P80 */ #if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE) { .modalias = "ad7879", @@ -590,7 +591,7 @@ static struct spi_board_info bf538_spi_board_info[] __initdata = { .chip_select = 1, .mode = SPI_CPHA | SPI_CPOL, }, -#endif +#endif /* CONFIG_TOUCHSCREEN_AD7879_SPI */ #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE) { .modalias = "bfin-lq035q1-spi", @@ -599,7 +600,7 @@ static struct spi_board_info bf538_spi_board_info[] __initdata = { .chip_select = 2, .mode = SPI_CPHA | SPI_CPOL, }, -#endif +#endif /* CONFIG_FB_BFIN_LQ035Q1 */ #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE) { .modalias = "spidev", @@ -607,7 +608,7 @@ static struct spi_board_info bf538_spi_board_info[] __initdata = { .bus_num = 0, .chip_select = 1, }, -#endif +#endif /* CONFIG_SPI_SPIDEV */ }; /* SPI (0) */ @@ -716,8 +717,6 @@ static struct platform_device bf538_spi_master2 = { }, }; -#endif /* spi master and devices */ - #if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE) static struct resource bfin_twi0_resource[] = { [0] = { @@ -759,8 +758,8 @@ static struct platform_device i2c_bfin_twi1_device = { .num_resources = ARRAY_SIZE(bfin_twi1_resource), .resource = bfin_twi1_resource, }; -#endif -#endif +#endif /* CONFIG_BF542 */ +#endif /* CONFIG_I2C_BLACKFIN_TWI */ #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) #include -- cgit v0.10.2 From 89f21cc050d5eed8eeffee5b46297fb7a74ef9dd Mon Sep 17 00:00:00 2001 From: Rupesh Gujare Date: Wed, 25 Apr 2012 23:54:58 +0100 Subject: staging: ozwpan: Fix bug where kfree is called twice. Signed-off-by: Rupesh Gujare Signed-off-by: Chris Kelly Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/ozwpan/ozpd.c b/drivers/staging/ozwpan/ozpd.c index 2b45d3d..04cd57f 100644 --- a/drivers/staging/ozwpan/ozpd.c +++ b/drivers/staging/ozwpan/ozpd.c @@ -383,8 +383,6 @@ static void oz_tx_frame_free(struct oz_pd *pd, struct oz_tx_frame *f) pd->tx_pool = &f->link; pd->tx_pool_count++; f = 0; - } else { - kfree(f); } spin_unlock_bh(&pd->tx_frame_lock); if (f) -- cgit v0.10.2 From 8b6efb75e9467f7c2df279cbd657f741ec3493cf Mon Sep 17 00:00:00 2001 From: Vlad Yasevich Date: Thu, 26 Apr 2012 10:27:18 +0000 Subject: MAINTAINERS: update sctp maintainer address Update my email address. Signed-off-by: Vlad Yasevich Signed-off-by: David S. Miller diff --git a/MAINTAINERS b/MAINTAINERS index bb76fc4..57bc677 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5892,11 +5892,11 @@ F: Documentation/scsi/st.txt F: drivers/scsi/st* SCTP PROTOCOL -M: Vlad Yasevich +M: Vlad Yasevich M: Sridhar Samudrala L: linux-sctp@vger.kernel.org W: http://lksctp.sourceforge.net -S: Supported +S: Maintained F: Documentation/networking/sctp.txt F: include/linux/sctp.h F: include/net/sctp/ -- cgit v0.10.2 From df88b2d96e36d9a9e325bfcd12eb45671cbbc937 Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Thu, 26 Apr 2012 13:13:21 -0400 Subject: xen/enlighten: Disable MWAIT_LEAF so that acpi-pad won't be loaded. There are exactly four users of __monitor and __mwait: - cstate.c (which allows acpi_processor_ffh_cstate_enter to be called when the cpuidle API drivers are used. However patch "cpuidle: replace xen access to x86 pm_idle and default_idle" provides a mechanism to disable the cpuidle and use safe_halt. - smpboot (which allows mwait_play_dead to be called). However safe_halt is always used so we skip that. - intel_idle (same deal as above). - acpi_pad.c. This the one that we do not want to run as we will hit the below crash. Why do we want to expose MWAIT_LEAF in the first place? We want it for the xen-acpi-processor driver - which uploads C-states to the hypervisor. If MWAIT_LEAF is set, the cstate.c sets the proper address in the C-states so that the hypervisor can benefit from using the MWAIT functionality. And that is the sole reason for using it. Without this patch, if a module performs mwait or monitor we get this: invalid opcode: 0000 [#1] SMP CPU 2 .. snip.. Pid: 5036, comm: insmod Tainted: G O 3.4.0-rc2upstream-dirty #2 Intel Corporation S2600CP/S2600CP RIP: e030:[] [] mwait_check_init+0x17/0x1000 [mwait_check] RSP: e02b:ffff8801c298bf18 EFLAGS: 00010282 RAX: ffff8801c298a010 RBX: ffffffffa03b2000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801c29800d8 RDI: ffff8801ff097200 RBP: ffff8801c298bf18 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffffffffa000a000 R14: 0000005148db7294 R15: 0000000000000003 FS: 00007fbb364f2700(0000) GS:ffff8801ff08c000(0000) knlGS:0000000000000000 CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 000000000179f038 CR3: 00000001c9469000 CR4: 0000000000002660 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process insmod (pid: 5036, threadinfo ffff8801c298a000, task ffff8801c29cd7e0) Stack: ffff8801c298bf48 ffffffff81002124 ffffffffa03b2000 00000000000081fd 000000000178f010 000000000178f030 ffff8801c298bf78 ffffffff810c41e6 00007fff3fb30db9 00007fff3fb30db9 00000000000081fd 0000000000010000 Call Trace: [] do_one_initcall+0x124/0x170 [] sys_init_module+0xc6/0x220 [] system_call_fastpath+0x16/0x1b Code: <0f> 01 c8 31 c0 0f 01 c9 c9 c3 00 00 00 00 00 00 00 00 00 00 00 00 RIP [] mwait_check_init+0x17/0x1000 [mwait_check] RSP ---[ end trace 16582fc8a3d1e29a ]--- Kernel panic - not syncing: Fatal exception With this module (which is what acpi_pad.c would hit): MODULE_AUTHOR("Konrad Rzeszutek Wilk "); MODULE_DESCRIPTION("mwait_check_and_back"); MODULE_LICENSE("GPL"); MODULE_VERSION(); static int __init mwait_check_init(void) { __monitor((void *)¤t_thread_info()->flags, 0, 0); __mwait(0, 0); return 0; } static void __exit mwait_check_exit(void) { } module_init(mwait_check_init); module_exit(mwait_check_exit); Reported-by: Liu, Jinsong Signed-off-by: Konrad Rzeszutek Wilk diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index 4f51beb..a8f8844 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -261,7 +261,8 @@ static void xen_cpuid(unsigned int *ax, unsigned int *bx, static bool __init xen_check_mwait(void) { -#ifdef CONFIG_ACPI +#if defined(CONFIG_ACPI) && !defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR) && \ + !defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR_MODULE) struct xen_platform_op op = { .cmd = XENPF_set_processor_pminfo, .u.set_pminfo.id = -1, @@ -349,7 +350,6 @@ static void __init xen_init_cpuid_mask(void) /* Xen will set CR4.OSXSAVE if supported and not disabled by force */ if ((cx & xsave_mask) != xsave_mask) cpuid_leaf1_ecx_mask &= ~xsave_mask; /* disable XSAVE & OSXSAVE */ - if (xen_check_mwait()) cpuid_leaf1_ecx_set_mask = (1 << (X86_FEATURE_MWAIT % 32)); } -- cgit v0.10.2 From 521394e4e679996955bc351cb6b64639751db2ff Mon Sep 17 00:00:00 2001 From: Stefano Stabellini Date: Wed, 25 Apr 2012 16:11:38 +0100 Subject: xen: use the pirq number to check the pirq_eoi_map In pirq_check_eoi_map use the pirq number rather than the Linux irq number to check whether an eoi is needed in the pirq_eoi_map. The reason is that the irq number is not always identical to the pirq number so if we wrongly use the irq number to check the pirq_eoi_map we are going to check for the wrong pirq to EOI. As a consequence some interrupts might not be EOI'ed by the guest correctly. Signed-off-by: Stefano Stabellini Tested-by: Tobias Geiger [v1: Added some extra wording to git commit] Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/xen/events.c b/drivers/xen/events.c index 4b33acd..0a8a17c 100644 --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -274,7 +274,7 @@ static unsigned int cpu_from_evtchn(unsigned int evtchn) static bool pirq_check_eoi_map(unsigned irq) { - return test_bit(irq, pirq_eoi_map); + return test_bit(pirq_from_irq(irq), pirq_eoi_map); } static bool pirq_needs_eoi_flag(unsigned irq) -- cgit v0.10.2 From 8e12a038f88e819c878e5697ff681cb08bcebb08 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Thu, 26 Apr 2012 14:23:22 -0400 Subject: xtensa: fix build fail on undefined ack_bad_irq Commit e520c410854bab763be24e0fce7ba89dc252efee "xtensa: convert to asm-generic/hardirq.h" converted over to using the asm-generic parts, but it also added the sentinel #define ack_bad_irq ack_bad_irq which tells asm-generic to _not_ use the common ack_bad_irq. Since e520c41 deleted the duplicated code from the arch specific file, we _do_ want the asm-generic one in scope. So delete the trigger define above which hides it. In doing so we'll realize that we've got to delete the almost-duplicate prototype as well to avoid "static declaration ... follows non-static". Cc: Christoph Hellwig Cc: Chris Zankel Signed-off-by: Paul Gortmaker diff --git a/arch/xtensa/include/asm/hardirq.h b/arch/xtensa/include/asm/hardirq.h index 26664ce..91695a1 100644 --- a/arch/xtensa/include/asm/hardirq.h +++ b/arch/xtensa/include/asm/hardirq.h @@ -11,9 +11,6 @@ #ifndef _XTENSA_HARDIRQ_H #define _XTENSA_HARDIRQ_H -void ack_bad_irq(unsigned int irq); -#define ack_bad_irq ack_bad_irq - #include #endif /* _XTENSA_HARDIRQ_H */ -- cgit v0.10.2 From 8598f3cd80c860173d9b35d91c3dcb93eee13b54 Mon Sep 17 00:00:00 2001 From: Matt Fleming Date: Tue, 14 Feb 2012 11:40:52 +0000 Subject: MIPS: Use set_current_blocked() and block_sigmask() As described in e6fa16ab ("signal: sigprocmask() should do retarget_shared_pending()") the modification of current->blocked is incorrect as we need to check whether the signal we're about to block is pending in the shared queue. Also, use the new helper function introduced in commit 5e6292c0f28f ("signal: add block_sigmask() for adding sigmask to current->blocked") which centralises the code for updating current->blocked after successfully delivering a signal and reduces the amount of duplicate code across architectures. In the past some architectures got this code wrong, so using this helper function should stop that from happening again. Cc: Oleg Nesterov Cc: Andrew Morton Cc: linux-kernel@vger.kernel.org Cc: Al Viro Cc: David Daney Cc: linux-mips@linux-mips.org Signed-off-by: Matt Fleming Patchwork: https://patchwork.linux-mips.org/patch/3363/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c index 185ca00..d5a338a 100644 --- a/arch/mips/kernel/signal.c +++ b/arch/mips/kernel/signal.c @@ -257,11 +257,8 @@ asmlinkage int sys_sigsuspend(nabi_no_regargs struct pt_regs regs) return -EFAULT; sigdelsetmask(&newset, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); current->saved_sigmask = current->blocked; - current->blocked = newset; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&newset); current->state = TASK_INTERRUPTIBLE; schedule(); @@ -286,11 +283,8 @@ asmlinkage int sys_rt_sigsuspend(nabi_no_regargs struct pt_regs regs) return -EFAULT; sigdelsetmask(&newset, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); current->saved_sigmask = current->blocked; - current->blocked = newset; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&newset); current->state = TASK_INTERRUPTIBLE; schedule(); @@ -362,10 +356,7 @@ asmlinkage void sys_sigreturn(nabi_no_regargs struct pt_regs regs) goto badframe; sigdelsetmask(&blocked, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = blocked; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&blocked); sig = restore_sigcontext(®s, &frame->sf_sc); if (sig < 0) @@ -401,10 +392,7 @@ asmlinkage void sys_rt_sigreturn(nabi_no_regargs struct pt_regs regs) goto badframe; sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); sig = restore_sigcontext(®s, &frame->rs_uc.uc_mcontext); if (sig < 0) @@ -580,12 +568,7 @@ static int handle_signal(unsigned long sig, siginfo_t *info, if (ret) return ret; - spin_lock_irq(¤t->sighand->siglock); - sigorsets(¤t->blocked, ¤t->blocked, &ka->sa.sa_mask); - if (!(ka->sa.sa_flags & SA_NODEFER)) - sigaddset(¤t->blocked, sig); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + block_sigmask(ka, sig); return ret; } diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c index 06b5da3..ac3b8d8 100644 --- a/arch/mips/kernel/signal32.c +++ b/arch/mips/kernel/signal32.c @@ -290,11 +290,8 @@ asmlinkage int sys32_sigsuspend(nabi_no_regargs struct pt_regs regs) return -EFAULT; sigdelsetmask(&newset, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); current->saved_sigmask = current->blocked; - current->blocked = newset; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&newset); current->state = TASK_INTERRUPTIBLE; schedule(); @@ -318,11 +315,8 @@ asmlinkage int sys32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs) return -EFAULT; sigdelsetmask(&newset, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); current->saved_sigmask = current->blocked; - current->blocked = newset; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&newset); current->state = TASK_INTERRUPTIBLE; schedule(); @@ -488,10 +482,7 @@ asmlinkage void sys32_sigreturn(nabi_no_regargs struct pt_regs regs) goto badframe; sigdelsetmask(&blocked, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = blocked; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&blocked); sig = restore_sigcontext32(®s, &frame->sf_sc); if (sig < 0) @@ -529,10 +520,7 @@ asmlinkage void sys32_rt_sigreturn(nabi_no_regargs struct pt_regs regs) goto badframe; sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); sig = restore_sigcontext32(®s, &frame->rs_uc.uc_mcontext); if (sig < 0) diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c index ae29e89..86eb4b0 100644 --- a/arch/mips/kernel/signal_n32.c +++ b/arch/mips/kernel/signal_n32.c @@ -93,11 +93,8 @@ asmlinkage int sysn32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs) sigset_from_compat(&newset, &uset); sigdelsetmask(&newset, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); current->saved_sigmask = current->blocked; - current->blocked = newset; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&newset); current->state = TASK_INTERRUPTIBLE; schedule(); @@ -121,10 +118,7 @@ asmlinkage void sysn32_rt_sigreturn(nabi_no_regargs struct pt_regs regs) goto badframe; sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); sig = restore_sigcontext(®s, &frame->rs_uc.uc_mcontext); if (sig < 0) -- cgit v0.10.2 From 05c8be02a98344148529441b28c0a8ce931dd6a8 Mon Sep 17 00:00:00 2001 From: Antony Pavlov Date: Wed, 7 Mar 2012 12:19:43 +0400 Subject: MIPS: JZ4740: Fix the JZ4740_IRQ_DMA macro Signed-off-by: Antony Pavlov Cc: Lars-Peter Clausen Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/3459/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/include/asm/mach-jz4740/irq.h b/arch/mips/include/asm/mach-jz4740/irq.h index a865c98..5ad1a9c 100644 --- a/arch/mips/include/asm/mach-jz4740/irq.h +++ b/arch/mips/include/asm/mach-jz4740/irq.h @@ -45,7 +45,7 @@ #define JZ4740_IRQ_LCD JZ4740_IRQ(30) /* 2nd-level interrupts */ -#define JZ4740_IRQ_DMA(x) (JZ4740_IRQ(32) + (X)) +#define JZ4740_IRQ_DMA(x) (JZ4740_IRQ(32) + (x)) #define JZ4740_IRQ_INTC_GPIO(x) (JZ4740_IRQ_GPIO0 - (x)) #define JZ4740_IRQ_GPIO(x) (JZ4740_IRQ(48) + (x)) -- cgit v0.10.2 From 5c22837adca7c30b66121cf18ad3e160134268d4 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Thu, 26 Apr 2012 21:59:10 +0200 Subject: USB: cdc-wdm: fix race leading leading to memory corruption MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch fixes a race whereby a pointer to a buffer would be overwritten while the buffer was in use leading to a double free and a memory leak. This causes crashes. This bug was introduced in 2.6.34 Signed-off-by: Oliver Neukum Tested-by: Bjørn Mork Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index c6f6560..0bb2b32 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -157,8 +157,9 @@ static void wdm_out_callback(struct urb *urb) spin_lock(&desc->iuspin); desc->werr = urb->status; spin_unlock(&desc->iuspin); - clear_bit(WDM_IN_USE, &desc->flags); kfree(desc->outbuf); + desc->outbuf = NULL; + clear_bit(WDM_IN_USE, &desc->flags); wake_up(&desc->wait); } @@ -338,7 +339,7 @@ static ssize_t wdm_write if (we < 0) return -EIO; - desc->outbuf = buf = kmalloc(count, GFP_KERNEL); + buf = kmalloc(count, GFP_KERNEL); if (!buf) { rv = -ENOMEM; goto outnl; @@ -406,10 +407,12 @@ static ssize_t wdm_write req->wIndex = desc->inum; req->wLength = cpu_to_le16(count); set_bit(WDM_IN_USE, &desc->flags); + desc->outbuf = buf; rv = usb_submit_urb(desc->command, GFP_KERNEL); if (rv < 0) { kfree(buf); + desc->outbuf = NULL; clear_bit(WDM_IN_USE, &desc->flags); dev_err(&desc->intf->dev, "Tx URB error: %d\n", rv); } else { -- cgit v0.10.2 From ec2ccd884ab1e190bc5ddb210c7d5f5ea2ddeba3 Mon Sep 17 00:00:00 2001 From: Nobuhiro Iwamatsu Date: Fri, 27 Apr 2012 11:12:38 +0930 Subject: sh: Fix up tracepoint build fallout from static key introduction. With the introduction of static keys, anything using tracepoints blows up in the following manner: include/trace/events/oom.h:8:13: error: initializer element is not constant include/trace/events/oom.h:8:13: error: (near initialization for '__tracepoint_oom_score_adj_update') include/trace/events/oom.h:8:13: error: initializer element is not constant include/trace/events/oom.h:8:13: error: (near initialization for '__tracepoint_oom_score_adj_update.key') This is a result of the STATIC_KEY_INIT_xxx defs wrapping ATOMIC_INIT() which on sh includes an atomic_t typecast. Given that we don't really need the typecast for anything anymore, the simplest solution is simply to kill off the cast. Signed-off-by: Nobuhiro Iwamatsu Signed-off-by: Paul Mundt diff --git a/arch/sh/include/asm/atomic.h b/arch/sh/include/asm/atomic.h index 37f2f4a..f4c1c20 100644 --- a/arch/sh/include/asm/atomic.h +++ b/arch/sh/include/asm/atomic.h @@ -11,7 +11,7 @@ #include #include -#define ATOMIC_INIT(i) ( (atomic_t) { (i) } ) +#define ATOMIC_INIT(i) { (i) } #define atomic_read(v) (*(volatile int *)&(v)->counter) #define atomic_set(v,i) ((v)->counter = (i)) -- cgit v0.10.2 From cf405ae612b0f7e2358db7ff594c0e94846137aa Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Thu, 26 Apr 2012 13:50:03 -0400 Subject: xen/smp: Fix crash when booting with ACPI hotplug CPUs. When we boot on a machine that can hotplug CPUs and we are using 'dom0_max_vcpus=X' on the Xen hypervisor line to clip the amount of CPUs available to the initial domain, we get this: (XEN) Command line: com1=115200,8n1 dom0_mem=8G noreboot dom0_max_vcpus=8 sync_console mce_verbosity=verbose console=com1,vga loglvl=all guest_loglvl=all .. snip.. DMI: Intel Corporation S2600CP/S2600CP, BIOS SE5C600.86B.99.99.x032.072520111118 07/25/2011 .. snip. SMP: Allowing 64 CPUs, 32 hotplug CPUs installing Xen timer for CPU 7 cpu 7 spinlock event irq 361 NMI watchdog: disabled (cpu7): hardware events not enabled Brought up 8 CPUs .. snip.. [acpi processor finds the CPUs are not initialized and starts calling arch_register_cpu, which creates /sys/devices/system/cpu/cpu8/online] CPU 8 got hotplugged CPU 9 got hotplugged CPU 10 got hotplugged .. snip.. initcall 1_acpi_battery_init_async+0x0/0x1b returned 0 after 406 usecs calling erst_init+0x0/0x2bb @ 1 [and the scheduler sticks newly started tasks on the new CPUs, but said CPUs cannot be initialized b/c the hypervisor has limited the amount of vCPUS to 8 - as per the dom0_max_vcpus=8 flag. The spinlock tries to kick the other CPU, but the structure for that is not initialized and we crash.] BUG: unable to handle kernel paging request at fffffffffffffed8 IP: [] xen_spin_lock+0x29/0x60 PGD 180d067 PUD 180e067 PMD 0 Oops: 0002 [#1] SMP CPU 7 Modules linked in: Pid: 1, comm: swapper/0 Not tainted 3.4.0-rc2upstream-00001-gf5154e8 #1 Intel Corporation S2600CP/S2600CP RIP: e030:[] [] xen_spin_lock+0x29/0x60 RSP: e02b:ffff8801fb9b3a70 EFLAGS: 00010282 With this patch, we cap the amount of vCPUS that the initial domain can run, to exactly what dom0_max_vcpus=X has specified. In the future, if there is a hypercall that will allow a running domain to expand past its initial set of vCPUS, this patch should be re-evaluated. CC: stable@kernel.org Signed-off-by: Konrad Rzeszutek Wilk diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c index 5fac691..0503c0c 100644 --- a/arch/x86/xen/smp.c +++ b/arch/x86/xen/smp.c @@ -178,6 +178,7 @@ static void __init xen_fill_possible_map(void) static void __init xen_filter_cpu_maps(void) { int i, rc; + unsigned int subtract = 0; if (!xen_initial_domain()) return; @@ -192,8 +193,22 @@ static void __init xen_filter_cpu_maps(void) } else { set_cpu_possible(i, false); set_cpu_present(i, false); + subtract++; } } +#ifdef CONFIG_HOTPLUG_CPU + /* This is akin to using 'nr_cpus' on the Linux command line. + * Which is OK as when we use 'dom0_max_vcpus=X' we can only + * have up to X, while nr_cpu_ids is greater than X. This + * normally is not a problem, except when CPU hotplugging + * is involved and then there might be more than X CPUs + * in the guest - which will not work as there is no + * hypercall to expand the max number of VCPUs an already + * running guest has. So cap it up to X. */ + if (subtract) + nr_cpu_ids = nr_cpu_ids - subtract; +#endif + } static void __init xen_smp_prepare_boot_cpu(void) -- cgit v0.10.2 From b930fe5e1f5646e071facda70b25b137ebeae5af Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Thu, 26 Apr 2012 14:22:33 -0400 Subject: xen/acpi: Workaround broken BIOSes exporting non-existing C-states. We did a similar check for the P-states but did not do it for the C-states. What we want to do is ignore cases where the DSDT has definition for sixteen CPUs, but the machine only has eight CPUs and we get: xen-acpi-processor: (CX): Hypervisor error (-22) for ACPI CPU14 Reported-by: Tobias Geiger Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/xen/xen-acpi-processor.c b/drivers/xen/xen-acpi-processor.c index 174b565..0b48579 100644 --- a/drivers/xen/xen-acpi-processor.c +++ b/drivers/xen/xen-acpi-processor.c @@ -128,7 +128,10 @@ static int push_cxx_to_hypervisor(struct acpi_processor *_pr) pr_debug(" C%d: %s %d uS\n", cx->type, cx->desc, (u32)cx->latency); } - } else + } else if (ret != -EINVAL) + /* EINVAL means the ACPI ID is incorrect - meaning the ACPI + * table is referencing a non-existing CPU - which can happen + * with broken ACPI tables. */ pr_err(DRV_NAME "(CX): Hypervisor error (%d) for ACPI CPU%u\n", ret, _pr->acpi_id); -- cgit v0.10.2 From b95ace54a23e2f8ebb032744cebb17c9f43bf651 Mon Sep 17 00:00:00 2001 From: Robert Jarzmik Date: Sun, 22 Apr 2012 13:37:24 +0200 Subject: ARM: pxa: fix gpio wakeup setting In 3.3, gpio wakeup setting was broken. The call enable_irq_wake() didn't set up the PXA gpio registers (PWER, ...) anymore. Fix it at least for pxa27x. The driver doesn't seem to be used in pxa25x (weird ...), and the fix doesn't extend to pxa3xx and pxa95x (which don't have a gpio_set_wake() available). Signed-off-by: Robert Jarzmik Signed-off-by: Haojian Zhuang diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c index 6bce78e..4726c24 100644 --- a/arch/arm/mach-pxa/pxa27x.c +++ b/arch/arm/mach-pxa/pxa27x.c @@ -421,8 +421,11 @@ void __init pxa27x_set_i2c_power_info(struct i2c_pxa_platform_data *info) pxa_register_device(&pxa27x_device_i2c_power, info); } +static struct pxa_gpio_platform_data pxa27x_gpio_info __initdata = { + .gpio_set_wake = gpio_set_wake, +}; + static struct platform_device *devices[] __initdata = { - &pxa_device_gpio, &pxa27x_device_udc, &pxa_device_pmu, &pxa_device_i2s, @@ -458,6 +461,7 @@ static int __init pxa27x_init(void) register_syscore_ops(&pxa2xx_mfp_syscore_ops); register_syscore_ops(&pxa2xx_clock_syscore_ops); + pxa_register_device(&pxa_device_gpio, &pxa27x_gpio_info); ret = platform_add_devices(devices, ARRAY_SIZE(devices)); } diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c index 5689ce6..fc3ace3 100644 --- a/drivers/gpio/gpio-pxa.c +++ b/drivers/gpio/gpio-pxa.c @@ -64,6 +64,7 @@ struct pxa_gpio_chip { unsigned long irq_mask; unsigned long irq_edge_rise; unsigned long irq_edge_fall; + int (*set_wake)(unsigned int gpio, unsigned int on); #ifdef CONFIG_PM unsigned long saved_gplr; @@ -269,7 +270,8 @@ static void pxa_gpio_set(struct gpio_chip *chip, unsigned offset, int value) (value ? GPSR_OFFSET : GPCR_OFFSET)); } -static int __devinit pxa_init_gpio_chip(int gpio_end) +static int __devinit pxa_init_gpio_chip(int gpio_end, + int (*set_wake)(unsigned int, unsigned int)) { int i, gpio, nbanks = gpio_to_bank(gpio_end) + 1; struct pxa_gpio_chip *chips; @@ -285,6 +287,7 @@ static int __devinit pxa_init_gpio_chip(int gpio_end) sprintf(chips[i].label, "gpio-%d", i); chips[i].regbase = gpio_reg_base + BANK_OFF(i); + chips[i].set_wake = set_wake; c->base = gpio; c->label = chips[i].label; @@ -412,6 +415,17 @@ static void pxa_mask_muxed_gpio(struct irq_data *d) writel_relaxed(gfer, c->regbase + GFER_OFFSET); } +static int pxa_gpio_set_wake(struct irq_data *d, unsigned int on) +{ + int gpio = pxa_irq_to_gpio(d->irq); + struct pxa_gpio_chip *c = gpio_to_pxachip(gpio); + + if (c->set_wake) + return c->set_wake(gpio, on); + else + return 0; +} + static void pxa_unmask_muxed_gpio(struct irq_data *d) { int gpio = pxa_irq_to_gpio(d->irq); @@ -427,6 +441,7 @@ static struct irq_chip pxa_muxed_gpio_chip = { .irq_mask = pxa_mask_muxed_gpio, .irq_unmask = pxa_unmask_muxed_gpio, .irq_set_type = pxa_gpio_irq_type, + .irq_set_wake = pxa_gpio_set_wake, }; static int pxa_gpio_nums(void) @@ -471,6 +486,7 @@ static int __devinit pxa_gpio_probe(struct platform_device *pdev) struct pxa_gpio_chip *c; struct resource *res; struct clk *clk; + struct pxa_gpio_platform_data *info; int gpio, irq, ret; int irq0 = 0, irq1 = 0, irq_mux, gpio_offset = 0; @@ -516,7 +532,8 @@ static int __devinit pxa_gpio_probe(struct platform_device *pdev) } /* Initialize GPIO chips */ - pxa_init_gpio_chip(pxa_last_gpio); + info = dev_get_platdata(&pdev->dev); + pxa_init_gpio_chip(pxa_last_gpio, info ? info->gpio_set_wake : NULL); /* clear all GPIO edge detects */ for_each_gpio_chip(gpio, c) { diff --git a/include/linux/gpio-pxa.h b/include/linux/gpio-pxa.h index 05071ee..d755b28 100644 --- a/include/linux/gpio-pxa.h +++ b/include/linux/gpio-pxa.h @@ -13,4 +13,8 @@ extern int pxa_last_gpio; extern int pxa_irq_to_gpio(int irq); +struct pxa_gpio_platform_data { + int (*gpio_set_wake)(unsigned int gpio, unsigned int on); +}; + #endif /* __GPIO_PXA_H */ -- cgit v0.10.2 From 9f9d27e3f3317f39c91c286b6184f1ca05452968 Mon Sep 17 00:00:00 2001 From: Dmitry Artamonow Date: Sat, 14 Apr 2012 10:26:19 +0400 Subject: arm/sa1100: fix sa1100-rtc memory resource DEFINE_RES_MEM() takes the size of resource as a second argument, not the end address. Passing end address leads to following error in runtime during device registration: sa1100-rtc: failed to claim resource 0 Fix it. Signed-off-by: Dmitry Artamonow Signed-off-by: Haojian Zhuang diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c index 7c524b4..16be4c5 100644 --- a/arch/arm/mach-sa1100/generic.c +++ b/arch/arm/mach-sa1100/generic.c @@ -306,7 +306,7 @@ void sa11x0_register_irda(struct irda_platform_data *irda) } static struct resource sa1100_rtc_resources[] = { - DEFINE_RES_MEM(0x90010000, 0x9001003f), + DEFINE_RES_MEM(0x90010000, 0x40), DEFINE_RES_IRQ_NAMED(IRQ_RTC1Hz, "rtc 1Hz"), DEFINE_RES_IRQ_NAMED(IRQ_RTCAlrm, "rtc alarm"), }; -- cgit v0.10.2 From a13b878780ea98d8415203c4502a8fc5bc614656 Mon Sep 17 00:00:00 2001 From: Igor Grinberg Date: Thu, 12 Apr 2012 15:43:28 +0300 Subject: ARM: PXA2xx: MFP: fix bug with MFP_LPM_KEEP_OUTPUT Pins that have MFP_LPM_KEEP_OUTPUT set and are configured for output must retain the output state in low power mode. Currently, the pin direction configuration is overrided with values in gpdr_lpm[] array and do not obey the MFP_LPM_KEEP_OUTPUT setting. Fix the above bug and add some documentation to clarify the MFP_LPM_KEEP_OUTPUT setting purpose. Reported-by: Paul Parsons Signed-off-by: Igor Grinberg Tested-by: Paul Parsons Signed-off-by: Haojian Zhuang diff --git a/arch/arm/mach-pxa/include/mach/mfp-pxa2xx.h b/arch/arm/mach-pxa/include/mach/mfp-pxa2xx.h index c54cef2..cbf51ae 100644 --- a/arch/arm/mach-pxa/include/mach/mfp-pxa2xx.h +++ b/arch/arm/mach-pxa/include/mach/mfp-pxa2xx.h @@ -17,6 +17,7 @@ * * bit 23 - Input/Output (PXA2xx specific) * bit 24 - Wakeup Enable(PXA2xx specific) + * bit 25 - Keep Output (PXA2xx specific) */ #define MFP_DIR_IN (0x0 << 23) @@ -25,6 +26,12 @@ #define MFP_DIR(x) (((x) >> 23) & 0x1) #define MFP_LPM_CAN_WAKEUP (0x1 << 24) + +/* + * MFP_LPM_KEEP_OUTPUT must be specified for pins that need to + * retain their last output level (low or high). + * Note: MFP_LPM_KEEP_OUTPUT has no effect on pins configured for input. + */ #define MFP_LPM_KEEP_OUTPUT (0x1 << 25) #define WAKEUP_ON_EDGE_RISE (MFP_LPM_CAN_WAKEUP | MFP_LPM_EDGE_RISE) diff --git a/arch/arm/mach-pxa/mfp-pxa2xx.c b/arch/arm/mach-pxa/mfp-pxa2xx.c index b0a8428..d2373d7 100644 --- a/arch/arm/mach-pxa/mfp-pxa2xx.c +++ b/arch/arm/mach-pxa/mfp-pxa2xx.c @@ -366,14 +366,22 @@ static int pxa2xx_mfp_suspend(void) } for (i = 0; i <= gpio_to_bank(pxa_last_gpio); i++) { - saved_gafr[0][i] = GAFR_L(i); saved_gafr[1][i] = GAFR_U(i); saved_gpdr[i] = GPDR(i * 32); saved_pgsr[i] = PGSR(i); + } - GPDR(i * 32) = gpdr_lpm[i]; + /* set GPDR bits taking into account MFP_LPM_KEEP_OUTPUT */ + for (i = 0; i < pxa_last_gpio; i++) { + if ((gpdr_lpm[gpio_to_bank(i)] & GPIO_bit(i)) || + ((gpio_desc[i].config & MFP_LPM_KEEP_OUTPUT) && + (saved_gpdr[gpio_to_bank(i)] & GPIO_bit(i)))) + GPDR(i) |= GPIO_bit(i); + else + GPDR(i) &= ~GPIO_bit(i); } + return 0; } -- cgit v0.10.2 From ef7c7c693b4b05a293678fd40ed1511bc94d6f61 Mon Sep 17 00:00:00 2001 From: Igor Grinberg Date: Thu, 12 Apr 2012 15:43:29 +0300 Subject: ARM: PXA2xx: MFP: fix potential direction bug Pins configured as input and have MFP_LPM_DRIVE_* flag set, can have a wrong output value for some period of time (spike) during the suspend sequence. This can happen because the direction of the pins (GPDR) is set by software and the output level is set by hardware (PGSR) at a later stage. Fix the above potential bug by setting the output levels first. Also save the actual levels of the pins before the suspend and restore them after the resume, but before the direction settings take place, so the same bug as described above will not happen in the resume sequence. Reported-by: Paul Parsons Signed-off-by: Igor Grinberg Tested-by: Paul Parsons Signed-off-by: Haojian Zhuang diff --git a/arch/arm/mach-pxa/mfp-pxa2xx.c b/arch/arm/mach-pxa/mfp-pxa2xx.c index d2373d7..ef0426a 100644 --- a/arch/arm/mach-pxa/mfp-pxa2xx.c +++ b/arch/arm/mach-pxa/mfp-pxa2xx.c @@ -33,6 +33,8 @@ #define BANK_OFF(n) (((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2)) #define GPLR(x) __REG2(0x40E00000, BANK_OFF((x) >> 5)) #define GPDR(x) __REG2(0x40E00000, BANK_OFF((x) >> 5) + 0x0c) +#define GPSR(x) __REG2(0x40E00000, BANK_OFF((x) >> 5) + 0x18) +#define GPCR(x) __REG2(0x40E00000, BANK_OFF((x) >> 5) + 0x24) #define PWER_WE35 (1 << 24) @@ -348,6 +350,7 @@ static inline void pxa27x_mfp_init(void) {} #ifdef CONFIG_PM static unsigned long saved_gafr[2][4]; static unsigned long saved_gpdr[4]; +static unsigned long saved_gplr[4]; static unsigned long saved_pgsr[4]; static int pxa2xx_mfp_suspend(void) @@ -369,7 +372,11 @@ static int pxa2xx_mfp_suspend(void) saved_gafr[0][i] = GAFR_L(i); saved_gafr[1][i] = GAFR_U(i); saved_gpdr[i] = GPDR(i * 32); + saved_gplr[i] = GPLR(i * 32); saved_pgsr[i] = PGSR(i); + + GPSR(i * 32) = PGSR(i); + GPCR(i * 32) = ~PGSR(i); } /* set GPDR bits taking into account MFP_LPM_KEEP_OUTPUT */ @@ -392,6 +399,8 @@ static void pxa2xx_mfp_resume(void) for (i = 0; i <= gpio_to_bank(pxa_last_gpio); i++) { GAFR_L(i) = saved_gafr[0][i]; GAFR_U(i) = saved_gafr[1][i]; + GPSR(i * 32) = saved_gplr[i]; + GPCR(i * 32) = ~saved_gplr[i]; GPDR(i * 32) = saved_gpdr[i]; PGSR(i) = saved_pgsr[i]; } -- cgit v0.10.2 From df391c0df49560c7fceffbad5b9d083836d9f22f Mon Sep 17 00:00:00 2001 From: Ilija Hadzic Date: Thu, 19 Apr 2012 12:22:20 -0400 Subject: drm/radeon: add a missing entry to encoder_names An entry for INTERNAL_VCE encoder was missing. Add it. Signed-off-by: Ilija Hadzic Reviewed-by: Alex Deucher Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 8086c96..0a1d4bd 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -533,7 +533,7 @@ static void radeon_crtc_init(struct drm_device *dev, int index) radeon_legacy_init_crtc(dev, radeon_crtc); } -static const char *encoder_names[36] = { +static const char *encoder_names[37] = { "NONE", "INTERNAL_LVDS", "INTERNAL_TMDS1", @@ -570,6 +570,7 @@ static const char *encoder_names[36] = { "INTERNAL_UNIPHY2", "NUTMEG", "TRAVIS", + "INTERNAL_VCE" }; static const char *connector_names[15] = { -- cgit v0.10.2 From 37d4174d2d252c37dcb3d88cafae488542087848 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 19 Apr 2012 10:48:38 -0400 Subject: drm/radeon/kms: use frac fb div on APUs Seems to be more stable on certain monitors. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=48880 Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index b5ff1f7..c5c31e0 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -575,6 +575,9 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc, if (rdev->family < CHIP_RV770) pll->flags |= RADEON_PLL_PREFER_MINM_OVER_MAXP; + /* use frac fb div on APUs */ + if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE61(rdev)) + pll->flags |= RADEON_PLL_USE_FRAC_FB_DIV; } else { pll->flags |= RADEON_PLL_LEGACY; -- cgit v0.10.2 From 83a787a71e034244a9fd1d5988fe18f226341417 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Fri, 27 Apr 2012 11:02:15 +0300 Subject: usb: gadget: udc-core: fix wrong call order commit 6d258a4 (usb: gadget: udc-core: stop UDC on device-initiated disconnect) introduced another case of asymmetric calls when issuing a device-initiated disconnect. Fix it. Reported-by: Ben Hutchings Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c index 2fa9865..df1bd87 100644 --- a/drivers/usb/gadget/udc-core.c +++ b/drivers/usb/gadget/udc-core.c @@ -415,9 +415,9 @@ static ssize_t usb_udc_softconn_store(struct device *dev, usb_gadget_udc_start(udc->gadget, udc->driver); usb_gadget_connect(udc->gadget); } else if (sysfs_streq(buf, "disconnect")) { + usb_gadget_disconnect(udc->gadget); if (udc_is_newstyle(udc)) usb_gadget_udc_stop(udc->gadget, udc->driver); - usb_gadget_disconnect(udc->gadget); } else { dev_err(dev, "unsupported command '%s'\n", buf); return -EINVAL; -- cgit v0.10.2 From 320cd1e750f1bf3e47eb41209dcb2be07264cb76 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Thu, 26 Apr 2012 11:31:57 -0400 Subject: usb: gadget: udc-core: fix incompatibility with dummy-hcd This patch (as1548) fixes a recently-introduced incompatibility between the UDC core and the dummy-hcd driver. Commit 8ae8090c82eb407267001f75b3d256b3bd4ae691 (usb: gadget: udc-core: fix asymmetric calls in remove_driver) moved the usb_gadget_udc_stop() call in usb_gadget_remove_driver() below the usb_gadget_disconnect() call. As a result, usb_gadget_disconnect() gets called at a time when the gadget driver believes it has been unbound but dummy-hcd believes it has not. A nasty error ensues when dummy-hcd calls the gadget driver's disconnect method a second time. To fix the problem, this patch moves the gadget driver's unbind notification after the usb_gadget_disconnect() call. Now nothing happens between the two unbind notifications, so nothing goes wrong. Signed-off-by: Alan Stern Tested-by: Alexander Shishkin Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c index df1bd87..e5e44f8 100644 --- a/drivers/usb/gadget/udc-core.c +++ b/drivers/usb/gadget/udc-core.c @@ -263,8 +263,8 @@ static void usb_gadget_remove_driver(struct usb_udc *udc) if (udc_is_newstyle(udc)) { udc->driver->disconnect(udc->gadget); - udc->driver->unbind(udc->gadget); usb_gadget_disconnect(udc->gadget); + udc->driver->unbind(udc->gadget); usb_gadget_udc_stop(udc->gadget, udc->driver); } else { usb_gadget_stop(udc->gadget, udc->driver); -- cgit v0.10.2 From 1e4f0b82577e59f23484c99056c96465e202fdd5 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Wed, 25 Apr 2012 13:39:38 +0200 Subject: i2c: mxs: disable QUEUE when sending is done Since the last fixes to this driver ensure now the queue termination is done correctly, we can finally disable the queue after a transfer without problems. The gain is that it will only be reenabled after the next transfer is fully set up. Before, the queue was running all the time and if the setup of the next message was interrupted by another thread, an incomplete buffer could have been sent, padded with zeroes. Signed-off-by: Wolfram Sang diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c index 4c37347..76b8af4 100644 --- a/drivers/i2c/busses/i2c-mxs.c +++ b/drivers/i2c/busses/i2c-mxs.c @@ -253,6 +253,9 @@ static int mxs_i2c_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, if (i2c->cmd_err == -ENXIO) mxs_i2c_reset(i2c); + else + writel(MXS_I2C_QUEUECTRL_QUEUE_RUN, + i2c->regs + MXS_I2C_QUEUECTRL_CLR); dev_dbg(i2c->dev, "Done with err=%d\n", i2c->cmd_err); @@ -383,8 +386,6 @@ static int __devexit mxs_i2c_remove(struct platform_device *pdev) if (ret) return -EBUSY; - writel(MXS_I2C_QUEUECTRL_QUEUE_RUN, - i2c->regs + MXS_I2C_QUEUECTRL_CLR); writel(MXS_I2C_CTRL0_SFTRST, i2c->regs + MXS_I2C_CTRL0_SET); platform_set_drvdata(pdev, NULL); -- cgit v0.10.2 From de14ca6ae2c592d66db88f1e5596b26f7f011384 Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Wed, 14 Mar 2012 10:28:35 +0100 Subject: MIPS: ath79: fix AR933X WMAC reset code The current code puts the built-in WMAC device of the AR933X SoCs into reset instead of starting it. This causes a hard lock on AR933X based boards when the wireless driver tries to access the device. Signed-off-by: Gabor Juhos Cc: stable@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/3484/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/ath79/dev-wmac.c b/arch/mips/ath79/dev-wmac.c index e215070..9c717bf 100644 --- a/arch/mips/ath79/dev-wmac.c +++ b/arch/mips/ath79/dev-wmac.c @@ -58,8 +58,8 @@ static void __init ar913x_wmac_setup(void) static int ar933x_wmac_reset(void) { - ath79_device_reset_clear(AR933X_RESET_WMAC); ath79_device_reset_set(AR933X_RESET_WMAC); + ath79_device_reset_clear(AR933X_RESET_WMAC); return 0; } -- cgit v0.10.2 From f7f286a910221ae18b21c18d9d0f4cd88965829f Mon Sep 17 00:00:00 2001 From: Andreas Herrmann Date: Tue, 3 Apr 2012 12:13:07 +0200 Subject: x86/amd: Re-enable CPU topology extensions in case BIOS has disabled it BIOS will switch off the corresponding feature flag on family 15h models 10h-1fh non-desktop CPUs. The topology extension CPUID leafs are required to detect which cores belong to the same compute unit. (thread siblings mask is set accordingly and also correct information about L1i and L2 cache sharing depends on this). W/o this patch we wouldn't see which cores belong to the same compute unit and also cache sharing information for L1i and L2 would be incorrect on such systems. Signed-off-by: Andreas Herrmann Signed-off-by: Ingo Molnar diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index 1c67ca1..146bb62 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -580,6 +580,24 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c) } } + /* re-enable TopologyExtensions if switched off by BIOS */ + if ((c->x86 == 0x15) && + (c->x86_model >= 0x10) && (c->x86_model <= 0x1f) && + !cpu_has(c, X86_FEATURE_TOPOEXT)) { + u64 val; + + if (!rdmsrl_amd_safe(0xc0011005, &val)) { + val |= 1ULL << 54; + wrmsrl_amd_safe(0xc0011005, val); + rdmsrl(0xc0011005, val); + if (val & (1ULL << 54)) { + set_cpu_cap(c, X86_FEATURE_TOPOEXT); + printk(KERN_INFO FW_INFO "CPU: Re-enabling " + "disabled Topology Extensions Support\n"); + } + } + } + cpu_detect_cache_sizes(c); /* Multi core CPU? */ -- cgit v0.10.2 From dc5efaa049cbb10efaf47fe977d45ea1e38b4465 Mon Sep 17 00:00:00 2001 From: David Daney Date: Wed, 28 Mar 2012 15:59:58 -0700 Subject: MIPS: Remove get_current_pgd(). It is unused in the tree. Signed-off-by: David Daney Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/3557/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/include/asm/mmu_context.h b/arch/mips/include/asm/mmu_context.h index 73c0d45..9b02cfb 100644 --- a/arch/mips/include/asm/mmu_context.h +++ b/arch/mips/include/asm/mmu_context.h @@ -37,12 +37,6 @@ extern void tlbmiss_handler_setup_pgd(unsigned long pgd); write_c0_xcontext((unsigned long) smp_processor_id() << 51); \ } while (0) - -static inline unsigned long get_current_pgd(void) -{ - return PHYS_TO_XKSEG_CACHED((read_c0_context() >> 11) & ~0xfffUL); -} - #else /* CONFIG_MIPS_PGD_C0_CONTEXT: using pgd_current*/ /* -- cgit v0.10.2 From 651913ce9de2bbcedef608c5d6cf39c244248509 Mon Sep 17 00:00:00 2001 From: Neal Cardwell Date: Fri, 27 Apr 2012 11:29:37 -0400 Subject: tcp: clean up use of jiffies in tcp_rcv_rtt_measure() Clean up a reference to jiffies in tcp_rcv_rtt_measure() that should instead reference tcp_time_stamp. Since the result of the subtraction is passed into a function taking u32, this should not change any behavior (and indeed the generated assembly does not change on x86_64). However, it seems worth cleaning this up for consistency and clarity (and perhaps to avoid bugs if this is copied and pasted somewhere else). Signed-off-by: Neal Cardwell Signed-off-by: David S. Miller diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 3ff36406..2a702e3 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -495,7 +495,7 @@ static inline void tcp_rcv_rtt_measure(struct tcp_sock *tp) goto new_measure; if (before(tp->rcv_nxt, tp->rcv_rtt_est.seq)) return; - tcp_rcv_rtt_update(tp, jiffies - tp->rcv_rtt_est.time, 1); + tcp_rcv_rtt_update(tp, tcp_time_stamp - tp->rcv_rtt_est.time, 1); new_measure: tp->rcv_rtt_est.seq = tp->rcv_nxt + tp->rcv_wnd; -- cgit v0.10.2 From 5eb806a3a68920a9f373f18b03fa14852047e62b Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 19 Apr 2012 14:44:21 +0530 Subject: spi/pl022: Fix calculate_effective_freq() calculate_effective_freq() was still not optimized and there were cases when it returned without error and with values of cpsr and scr as zero. Also, the variable named found is not used well. This patch targets to optimize and correct this routine. Tested for SPEAr. Signed-off-by: Viresh Kumar Tested-by: Vinit Kamalaksha Shenoy Acked-by: Linus Walleij Signed-off-by: Grant Likely diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c index 1ead49d..8aa44e7 100644 --- a/drivers/spi/spi-pl022.c +++ b/drivers/spi/spi-pl022.c @@ -1681,26 +1681,37 @@ static int calculate_effective_freq(struct pl022 *pl022, int freq, struct while (scr <= SCR_MAX) { tmp = spi_rate(rate, cpsdvsr, scr); - if (tmp > freq) + if (tmp > freq) { + /* we need lower freq */ scr++; + continue; + } + /* - * If found exact value, update and break. - * If found more closer value, update and continue. + * If found exact value, mark found and break. + * If found more closer value, update and break. */ - else if ((tmp == freq) || (tmp > best_freq)) { + if (tmp > best_freq) { best_freq = tmp; best_cpsdvsr = cpsdvsr; best_scr = scr; if (tmp == freq) - break; + found = 1; } - scr++; + /* + * increased scr will give lower rates, which are not + * required + */ + break; } cpsdvsr += 2; scr = SCR_MIN; } + WARN(!best_freq, "pl022: Matching cpsdvsr and scr not found for %d Hz rate \n", + freq); + clk_freq->cpsdvsr = (u8) (best_cpsdvsr & 0xFF); clk_freq->scr = (u8) (best_scr & 0xFF); dev_dbg(&pl022->adev->dev, -- cgit v0.10.2 From dbabe0d659d3cfe42830a779909ab3cd42f7b027 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Tue, 17 Apr 2012 17:03:50 -0700 Subject: spi: fix spi.h kernel-doc warning Fix kernel-doc warning in spi.h (copy/paste): Warning(include/linux/spi/spi.h:365): No description found for parameter 'unprepare_transfer_hardware' Signed-off-by: Randy Dunlap Signed-off-by: Grant Likely diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 98679b0..fa702ae 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -254,7 +254,7 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv) * driver is finished with this message, it must call * spi_finalize_current_message() so the subsystem can issue the next * transfer - * @prepare_transfer_hardware: there are currently no more messages on the + * @unprepare_transfer_hardware: there are currently no more messages on the * queue so the subsystem notifies the driver that it may relax the * hardware by issuing this call * -- cgit v0.10.2 From d4b9b578cba7231c1fbafbe901a2e8f38654e056 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 17 Apr 2012 18:46:36 -0700 Subject: spi/spi-ep93xx.c: use dma_transfer_direction instead of dma_data_direction A new enum indicating the dma channel direction was introduced by: commit 49920bc66984a512f4bcc7735a61642cd0e4d6f2 dmaengine: add new enum dma_transfer_direction The following commit changed spi-ep93xx to use the new enum: commit a485df4b4404379786c4bdd258bc528b2617449d spi, serial: move to dma_transfer_direction In doing so a sparse warning was introduced: warning: mixing different enum types int enum dma_data_direction versus int enum dma_transfer_direction This is produced because the 'dir' passed in ep93xx_spi_dma_prepare is an enum dma_data_direction and is being used to set the dma_slave_config 'direction' which is now an enum dma_transfer_direction. Fix this by converting spi-ep93xx to use the new enum type in all places. Signed-off-by: H Hartley Sweeten Acked-by: Mika Westerberg Acked-by: Vinod Koul Signed-off-by: Grant Likely diff --git a/drivers/spi/spi-ep93xx.c b/drivers/spi/spi-ep93xx.c index 6db2887..e805507 100644 --- a/drivers/spi/spi-ep93xx.c +++ b/drivers/spi/spi-ep93xx.c @@ -545,13 +545,12 @@ static void ep93xx_spi_pio_transfer(struct ep93xx_spi *espi) * in case of failure. */ static struct dma_async_tx_descriptor * -ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_data_direction dir) +ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_transfer_direction dir) { struct spi_transfer *t = espi->current_msg->state; struct dma_async_tx_descriptor *txd; enum dma_slave_buswidth buswidth; struct dma_slave_config conf; - enum dma_transfer_direction slave_dirn; struct scatterlist *sg; struct sg_table *sgt; struct dma_chan *chan; @@ -567,14 +566,13 @@ ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_data_direction dir) memset(&conf, 0, sizeof(conf)); conf.direction = dir; - if (dir == DMA_FROM_DEVICE) { + if (dir == DMA_DEV_TO_MEM) { chan = espi->dma_rx; buf = t->rx_buf; sgt = &espi->rx_sgt; conf.src_addr = espi->sspdr_phys; conf.src_addr_width = buswidth; - slave_dirn = DMA_DEV_TO_MEM; } else { chan = espi->dma_tx; buf = t->tx_buf; @@ -582,7 +580,6 @@ ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_data_direction dir) conf.dst_addr = espi->sspdr_phys; conf.dst_addr_width = buswidth; - slave_dirn = DMA_MEM_TO_DEV; } ret = dmaengine_slave_config(chan, &conf); @@ -633,8 +630,7 @@ ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_data_direction dir) if (!nents) return ERR_PTR(-ENOMEM); - txd = dmaengine_prep_slave_sg(chan, sgt->sgl, nents, - slave_dirn, DMA_CTRL_ACK); + txd = dmaengine_prep_slave_sg(chan, sgt->sgl, nents, dir, DMA_CTRL_ACK); if (!txd) { dma_unmap_sg(chan->device->dev, sgt->sgl, sgt->nents, dir); return ERR_PTR(-ENOMEM); @@ -651,12 +647,12 @@ ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_data_direction dir) * unmapped. */ static void ep93xx_spi_dma_finish(struct ep93xx_spi *espi, - enum dma_data_direction dir) + enum dma_transfer_direction dir) { struct dma_chan *chan; struct sg_table *sgt; - if (dir == DMA_FROM_DEVICE) { + if (dir == DMA_DEV_TO_MEM) { chan = espi->dma_rx; sgt = &espi->rx_sgt; } else { @@ -677,16 +673,16 @@ static void ep93xx_spi_dma_transfer(struct ep93xx_spi *espi) struct spi_message *msg = espi->current_msg; struct dma_async_tx_descriptor *rxd, *txd; - rxd = ep93xx_spi_dma_prepare(espi, DMA_FROM_DEVICE); + rxd = ep93xx_spi_dma_prepare(espi, DMA_DEV_TO_MEM); if (IS_ERR(rxd)) { dev_err(&espi->pdev->dev, "DMA RX failed: %ld\n", PTR_ERR(rxd)); msg->status = PTR_ERR(rxd); return; } - txd = ep93xx_spi_dma_prepare(espi, DMA_TO_DEVICE); + txd = ep93xx_spi_dma_prepare(espi, DMA_MEM_TO_DEV); if (IS_ERR(txd)) { - ep93xx_spi_dma_finish(espi, DMA_FROM_DEVICE); + ep93xx_spi_dma_finish(espi, DMA_DEV_TO_MEM); dev_err(&espi->pdev->dev, "DMA TX failed: %ld\n", PTR_ERR(rxd)); msg->status = PTR_ERR(txd); return; @@ -705,8 +701,8 @@ static void ep93xx_spi_dma_transfer(struct ep93xx_spi *espi) wait_for_completion(&espi->wait); - ep93xx_spi_dma_finish(espi, DMA_TO_DEVICE); - ep93xx_spi_dma_finish(espi, DMA_FROM_DEVICE); + ep93xx_spi_dma_finish(espi, DMA_MEM_TO_DEV); + ep93xx_spi_dma_finish(espi, DMA_DEV_TO_MEM); } /** -- cgit v0.10.2 From 5a00689930ab975fdd1b37b034475017e460cf2a Mon Sep 17 00:00:00 2001 From: Sachin Prabhu Date: Tue, 17 Apr 2012 14:35:39 +0100 Subject: Avoid reading past buffer when calling GETACL Bug noticed in commit bf118a342f10dafe44b14451a1392c3254629a1f When calling GETACL, if the size of the bitmap array, the length attribute and the acl returned by the server is greater than the allocated buffer(args.acl_len), we can Oops with a General Protection fault at _copy_from_pages() when we attempt to read past the pages allocated. This patch allocates an extra PAGE for the bitmap and checks to see that the bitmap + attribute_length + ACLs don't exceed the buffer space allocated to it. Signed-off-by: Sachin Prabhu Reported-by: Jian Li [Trond: Fixed a size_t vs unsigned int printk() warning] Signed-off-by: Trond Myklebust diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 60d5f4c..f5f125f 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -3684,19 +3684,23 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu if (npages == 0) npages = 1; + /* Add an extra page to handle the bitmap returned */ + npages++; + for (i = 0; i < npages; i++) { pages[i] = alloc_page(GFP_KERNEL); if (!pages[i]) goto out_free; } - if (npages > 1) { - /* for decoding across pages */ - res.acl_scratch = alloc_page(GFP_KERNEL); - if (!res.acl_scratch) - goto out_free; - } + + /* for decoding across pages */ + res.acl_scratch = alloc_page(GFP_KERNEL); + if (!res.acl_scratch) + goto out_free; + args.acl_len = npages * PAGE_SIZE; args.acl_pgbase = 0; + /* Let decode_getfacl know not to fail if the ACL data is larger than * the page we send as a guess */ if (buf == NULL) diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 77fc5f9..9312dd7 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -4902,11 +4902,19 @@ static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, bitmap[3] = {0}; struct kvec *iov = req->rq_rcv_buf.head; int status; + size_t page_len = xdr->buf->page_len; res->acl_len = 0; if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) goto out; + bm_p = xdr->p; + res->acl_data_offset = be32_to_cpup(bm_p) + 2; + res->acl_data_offset <<= 2; + /* Check if the acl data starts beyond the allocated buffer */ + if (res->acl_data_offset > page_len) + return -ERANGE; + if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) goto out; if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) @@ -4916,28 +4924,24 @@ static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { size_t hdrlen; - u32 recvd; /* The bitmap (xdr len + bitmaps) and the attr xdr len words * are stored with the acl data to handle the problem of * variable length bitmaps.*/ xdr->p = bm_p; - res->acl_data_offset = be32_to_cpup(bm_p) + 2; - res->acl_data_offset <<= 2; /* We ignore &savep and don't do consistency checks on * the attr length. Let userspace figure it out.... */ hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; attrlen += res->acl_data_offset; - recvd = req->rq_rcv_buf.len - hdrlen; - if (attrlen > recvd) { + if (attrlen > page_len) { if (res->acl_flags & NFS4_ACL_LEN_REQUEST) { /* getxattr interface called with a NULL buf */ res->acl_len = attrlen; goto out; } - dprintk("NFS: acl reply: attrlen %u > recvd %u\n", - attrlen, recvd); + dprintk("NFS: acl reply: attrlen %zu > page_len %u\n", + attrlen, page_len); return -EINVAL; } xdr_read_pages(xdr, attrlen); -- cgit v0.10.2 From cde4384e1037c15e5dd04c68d19c75798b6281dd Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Fri, 20 Apr 2012 15:37:33 +0200 Subject: spi/bcm63xx: convert to the pump message infrastructure This patch converts the bcm63xx SPI driver to use the SPI infrastructure pump message queue. Since we were previously sleeping in the SPI driver's transfer() function (which is not allowed) this is now fixed as well. To complete that conversion a certain number of changes have been made: - the transfer len is split into multiple hardware transfers in case its size is bigger than the hardware FIFO size - the FIFO refill is no longer done in the interrupt context, which was a bad idea leading to quick interrupt handler re-entrancy Tested-by: Tanguy Bouzeloc Signed-off-by: Florian Fainelli Signed-off-by: Grant Likely diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c index f01b264..63b0028 100644 --- a/drivers/spi/spi-bcm63xx.c +++ b/drivers/spi/spi-bcm63xx.c @@ -1,7 +1,7 @@ /* * Broadcom BCM63xx SPI controller support * - * Copyright (C) 2009-2011 Florian Fainelli + * Copyright (C) 2009-2012 Florian Fainelli * Copyright (C) 2010 Tanguy Bouzeloc * * This program is free software; you can redistribute it and/or @@ -30,6 +30,8 @@ #include #include #include +#include +#include #include @@ -96,17 +98,12 @@ static const unsigned bcm63xx_spi_freq_table[SPI_CLK_MASK][2] = { { 391000, SPI_CLK_0_391MHZ } }; -static int bcm63xx_spi_setup_transfer(struct spi_device *spi, - struct spi_transfer *t) +static int bcm63xx_spi_check_transfer(struct spi_device *spi, + struct spi_transfer *t) { - struct bcm63xx_spi *bs = spi_master_get_devdata(spi->master); u8 bits_per_word; - u8 clk_cfg, reg; - u32 hz; - int i; bits_per_word = (t) ? t->bits_per_word : spi->bits_per_word; - hz = (t) ? t->speed_hz : spi->max_speed_hz; if (bits_per_word != 8) { dev_err(&spi->dev, "%s, unsupported bits_per_word=%d\n", __func__, bits_per_word); @@ -119,6 +116,19 @@ static int bcm63xx_spi_setup_transfer(struct spi_device *spi, return -EINVAL; } + return 0; +} + +static void bcm63xx_spi_setup_transfer(struct spi_device *spi, + struct spi_transfer *t) +{ + struct bcm63xx_spi *bs = spi_master_get_devdata(spi->master); + u32 hz; + u8 clk_cfg, reg; + int i; + + hz = (t) ? t->speed_hz : spi->max_speed_hz; + /* Find the closest clock configuration */ for (i = 0; i < SPI_CLK_MASK; i++) { if (hz <= bcm63xx_spi_freq_table[i][0]) { @@ -139,8 +149,6 @@ static int bcm63xx_spi_setup_transfer(struct spi_device *spi, bcm_spi_writeb(bs, reg, SPI_CLK_CFG); dev_dbg(&spi->dev, "Setting clock register to %02x (hz %d)\n", clk_cfg, hz); - - return 0; } /* the spi->mode bits understood by this driver: */ @@ -165,7 +173,7 @@ static int bcm63xx_spi_setup(struct spi_device *spi) return -EINVAL; } - ret = bcm63xx_spi_setup_transfer(spi, NULL); + ret = bcm63xx_spi_check_transfer(spi, NULL); if (ret < 0) { dev_err(&spi->dev, "setup: unsupported mode bits %x\n", spi->mode & ~MODEBITS); @@ -190,28 +198,29 @@ static void bcm63xx_spi_fill_tx_fifo(struct bcm63xx_spi *bs) bs->remaining_bytes -= size; } -static int bcm63xx_txrx_bufs(struct spi_device *spi, struct spi_transfer *t) +static unsigned int bcm63xx_txrx_bufs(struct spi_device *spi, + struct spi_transfer *t) { struct bcm63xx_spi *bs = spi_master_get_devdata(spi->master); u16 msg_ctl; u16 cmd; + /* Disable the CMD_DONE interrupt */ + bcm_spi_writeb(bs, 0, SPI_INT_MASK); + dev_dbg(&spi->dev, "txrx: tx %p, rx %p, len %d\n", t->tx_buf, t->rx_buf, t->len); /* Transmitter is inhibited */ bs->tx_ptr = t->tx_buf; bs->rx_ptr = t->rx_buf; - init_completion(&bs->done); if (t->tx_buf) { bs->remaining_bytes = t->len; bcm63xx_spi_fill_tx_fifo(bs); } - /* Enable the command done interrupt which - * we use to determine completion of a command */ - bcm_spi_writeb(bs, SPI_INTR_CMD_DONE, SPI_INT_MASK); + init_completion(&bs->done); /* Fill in the Message control register */ msg_ctl = (t->len << SPI_BYTE_CNT_SHIFT); @@ -230,33 +239,76 @@ static int bcm63xx_txrx_bufs(struct spi_device *spi, struct spi_transfer *t) cmd |= (0 << SPI_CMD_PREPEND_BYTE_CNT_SHIFT); cmd |= (spi->chip_select << SPI_CMD_DEVICE_ID_SHIFT); bcm_spi_writew(bs, cmd, SPI_CMD); - wait_for_completion(&bs->done); - /* Disable the CMD_DONE interrupt */ - bcm_spi_writeb(bs, 0, SPI_INT_MASK); + /* Enable the CMD_DONE interrupt */ + bcm_spi_writeb(bs, SPI_INTR_CMD_DONE, SPI_INT_MASK); return t->len - bs->remaining_bytes; } -static int bcm63xx_transfer(struct spi_device *spi, struct spi_message *m) +static int bcm63xx_spi_prepare_transfer(struct spi_master *master) { - struct bcm63xx_spi *bs = spi_master_get_devdata(spi->master); - struct spi_transfer *t; - int ret = 0; + struct bcm63xx_spi *bs = spi_master_get_devdata(master); - if (unlikely(list_empty(&m->transfers))) - return -EINVAL; + pm_runtime_get_sync(&bs->pdev->dev); - if (bs->stopping) - return -ESHUTDOWN; + return 0; +} + +static int bcm63xx_spi_unprepare_transfer(struct spi_master *master) +{ + struct bcm63xx_spi *bs = spi_master_get_devdata(master); + + pm_runtime_put(&bs->pdev->dev); + + return 0; +} + +static int bcm63xx_spi_transfer_one(struct spi_master *master, + struct spi_message *m) +{ + struct bcm63xx_spi *bs = spi_master_get_devdata(master); + struct spi_transfer *t; + struct spi_device *spi = m->spi; + int status = 0; + unsigned int timeout = 0; list_for_each_entry(t, &m->transfers, transfer_list) { - ret += bcm63xx_txrx_bufs(spi, t); - } + unsigned int len = t->len; + u8 rx_tail; - m->complete(m->context); + status = bcm63xx_spi_check_transfer(spi, t); + if (status < 0) + goto exit; - return ret; + /* configure adapter for a new transfer */ + bcm63xx_spi_setup_transfer(spi, t); + + while (len) { + /* send the data */ + len -= bcm63xx_txrx_bufs(spi, t); + + timeout = wait_for_completion_timeout(&bs->done, HZ); + if (!timeout) { + status = -ETIMEDOUT; + goto exit; + } + + /* read out all data */ + rx_tail = bcm_spi_readb(bs, SPI_RX_TAIL); + + /* Read out all the data */ + if (rx_tail) + memcpy_fromio(bs->rx_ptr, bs->rx_io, rx_tail); + } + + m->actual_length += t->len; + } +exit: + m->status = status; + spi_finalize_current_message(master); + + return 0; } /* This driver supports single master mode only. Hence @@ -267,39 +319,15 @@ static irqreturn_t bcm63xx_spi_interrupt(int irq, void *dev_id) struct spi_master *master = (struct spi_master *)dev_id; struct bcm63xx_spi *bs = spi_master_get_devdata(master); u8 intr; - u16 cmd; /* Read interupts and clear them immediately */ intr = bcm_spi_readb(bs, SPI_INT_STATUS); bcm_spi_writeb(bs, SPI_INTR_CLEAR_ALL, SPI_INT_STATUS); bcm_spi_writeb(bs, 0, SPI_INT_MASK); - /* A tansfer completed */ - if (intr & SPI_INTR_CMD_DONE) { - u8 rx_tail; - - rx_tail = bcm_spi_readb(bs, SPI_RX_TAIL); - - /* Read out all the data */ - if (rx_tail) - memcpy_fromio(bs->rx_ptr, bs->rx_io, rx_tail); - - /* See if there is more data to send */ - if (bs->remaining_bytes > 0) { - bcm63xx_spi_fill_tx_fifo(bs); - - /* Start the transfer */ - bcm_spi_writew(bs, SPI_HD_W << SPI_MSG_TYPE_SHIFT, - SPI_MSG_CTL); - cmd = bcm_spi_readw(bs, SPI_CMD); - cmd |= SPI_CMD_START_IMMEDIATE; - cmd |= (0 << SPI_CMD_PREPEND_BYTE_CNT_SHIFT); - bcm_spi_writeb(bs, SPI_INTR_CMD_DONE, SPI_INT_MASK); - bcm_spi_writew(bs, cmd, SPI_CMD); - } else { - complete(&bs->done); - } - } + /* A transfer completed */ + if (intr & SPI_INTR_CMD_DONE) + complete(&bs->done); return IRQ_HANDLED; } @@ -345,7 +373,6 @@ static int __devinit bcm63xx_spi_probe(struct platform_device *pdev) } bs = spi_master_get_devdata(master); - init_completion(&bs->done); platform_set_drvdata(pdev, master); bs->pdev = pdev; @@ -379,7 +406,9 @@ static int __devinit bcm63xx_spi_probe(struct platform_device *pdev) master->bus_num = pdata->bus_num; master->num_chipselect = pdata->num_chipselect; master->setup = bcm63xx_spi_setup; - master->transfer = bcm63xx_transfer; + master->prepare_transfer_hardware = bcm63xx_spi_prepare_transfer; + master->unprepare_transfer_hardware = bcm63xx_spi_unprepare_transfer; + master->transfer_one_message = bcm63xx_spi_transfer_one; bs->speed_hz = pdata->speed_hz; bs->stopping = 0; bs->tx_io = (u8 *)(bs->regs + bcm63xx_spireg(SPI_MSG_DATA)); -- cgit v0.10.2 From 1e41dc0ee2f3807328db95e4f87ff1333245190f Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Fri, 20 Apr 2012 15:37:34 +0200 Subject: spi/bcm63xx: don't use the stopping state We do not need to use a flag to indicate if the master driver is stopping it is sufficient to perform spi master unregistering in the platform driver's remove function. Signed-off-by: Florian Fainelli Signed-off-by: Grant Likely diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c index 63b0028..80e5ed3 100644 --- a/drivers/spi/spi-bcm63xx.c +++ b/drivers/spi/spi-bcm63xx.c @@ -39,8 +39,6 @@ #define DRV_VER "0.1.2" struct bcm63xx_spi { - spinlock_t lock; - int stopping; struct completion done; void __iomem *regs; @@ -161,9 +159,6 @@ static int bcm63xx_spi_setup(struct spi_device *spi) bs = spi_master_get_devdata(spi->master); - if (bs->stopping) - return -ESHUTDOWN; - if (!spi->bits_per_word) spi->bits_per_word = 8; @@ -410,10 +405,8 @@ static int __devinit bcm63xx_spi_probe(struct platform_device *pdev) master->unprepare_transfer_hardware = bcm63xx_spi_unprepare_transfer; master->transfer_one_message = bcm63xx_spi_transfer_one; bs->speed_hz = pdata->speed_hz; - bs->stopping = 0; bs->tx_io = (u8 *)(bs->regs + bcm63xx_spireg(SPI_MSG_DATA)); bs->rx_io = (const u8 *)(bs->regs + bcm63xx_spireg(SPI_RX_DATA)); - spin_lock_init(&bs->lock); /* Initialize hardware */ clk_enable(bs->clk); @@ -447,18 +440,16 @@ static int __devexit bcm63xx_spi_remove(struct platform_device *pdev) struct spi_master *master = platform_get_drvdata(pdev); struct bcm63xx_spi *bs = spi_master_get_devdata(master); + spi_unregister_master(master); + /* reset spi block */ bcm_spi_writeb(bs, 0, SPI_INT_MASK); - spin_lock(&bs->lock); - bs->stopping = 1; /* HW shutdown */ clk_disable(bs->clk); clk_put(bs->clk); - spin_unlock(&bs->lock); platform_set_drvdata(pdev, 0); - spi_unregister_master(master); return 0; } -- cgit v0.10.2 From 88a3a255a510ed193bf0cc35424761c3c9247586 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Fri, 20 Apr 2012 15:37:35 +0200 Subject: spi/bcm63xx: set master driver mode_bits. We were not properly advertising the MODE bits supported by this driver, fix that. Signed-off-by: Florian Fainelli Signed-off-by: Grant Likely diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c index 80e5ed3..7491971 100644 --- a/drivers/spi/spi-bcm63xx.c +++ b/drivers/spi/spi-bcm63xx.c @@ -404,6 +404,7 @@ static int __devinit bcm63xx_spi_probe(struct platform_device *pdev) master->prepare_transfer_hardware = bcm63xx_spi_prepare_transfer; master->unprepare_transfer_hardware = bcm63xx_spi_unprepare_transfer; master->transfer_one_message = bcm63xx_spi_transfer_one; + master->mode_bits = MODEBITS; bs->speed_hz = pdata->speed_hz; bs->tx_io = (u8 *)(bs->regs + bcm63xx_spireg(SPI_MSG_DATA)); bs->rx_io = (const u8 *)(bs->regs + bcm63xx_spireg(SPI_RX_DATA)); -- cgit v0.10.2 From 996d282c7ff470f150a467eb4815b90159d04c47 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Mon, 23 Apr 2012 20:35:03 -0400 Subject: Btrfs: do not start delalloc inodes during sync btrfs_start_delalloc_inodes will just walk the list of delalloc inodes and start writing them out, but it doesn't splice the list or anything so as long as somebody is doing work on the box you could end up in this section _forever_. So just remove it, it's not needed anyway since sync will start writeback on all inodes anyway, all we need to do is wait for ordered extents and then we can commit the transaction. In my horrible torture test sync goes from taking 4 minutes to about 1.5 minutes. Thanks, Signed-off-by: Josef Bacik Signed-off-by: Chris Mason diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 43aa2dd..f267718 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -819,7 +819,6 @@ int btrfs_sync_fs(struct super_block *sb, int wait) return 0; } - btrfs_start_delalloc_inodes(root, 0); btrfs_wait_ordered_extents(root, 0, 0); trans = btrfs_start_transaction(root, 0); -- cgit v0.10.2 From 3e74317ad773ba9df36db1fa32848cba41ac4d1a Mon Sep 17 00:00:00 2001 From: Jan Schmidt Date: Fri, 27 Apr 2012 12:41:45 -0400 Subject: Btrfs: fix repair code for RAID10 btrfs_map_block sets mirror_num, so that the repair code knows eventually which device gave us the read error. For RAID10, mirror_num must be 1 or 2. Before this fix mirror_num was incorrectly related to our stripe index. Signed-off-by: Jan Schmidt Signed-off-by: Chris Mason diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 3b98417..1411b99 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -3807,10 +3807,11 @@ static int __btrfs_map_block(struct btrfs_mapping_tree *map_tree, int rw, else if (mirror_num) stripe_index += mirror_num - 1; else { + int old_stripe_index = stripe_index; stripe_index = find_live_mirror(map, stripe_index, map->sub_stripes, stripe_index + current->pid % map->sub_stripes); - mirror_num = stripe_index + 1; + mirror_num = stripe_index - old_stripe_index + 1; } } else { /* -- cgit v0.10.2 From 1daf3540fa77faea2f91d96bcaf07ce48ee827be Mon Sep 17 00:00:00 2001 From: Daniel J Blueman Date: Fri, 27 Apr 2012 12:41:46 -0400 Subject: Btrfs: Prevent root_list corruption I was seeing root_list corruption on unmount during fs resize in 3.4-rc4; add correct locking to address this. Signed-off-by: Daniel J Blueman Signed-off-by: Chris Mason diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index 017281d..5a105a0 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -1279,7 +1279,9 @@ static int __update_reloc_root(struct btrfs_root *root, int del) if (rb_node) backref_tree_panic(rb_node, -EEXIST, node->bytenr); } else { + spin_lock(&root->fs_info->trans_lock); list_del_init(&root->root_list); + spin_unlock(&root->fs_info->trans_lock); kfree(node); } return 0; -- cgit v0.10.2 From 1f699d38b6556c393ac80f1c23c2053502a51631 Mon Sep 17 00:00:00 2001 From: Stefan Behrens Date: Fri, 27 Apr 2012 12:41:46 -0400 Subject: Btrfs: fix block_rsv and space_info lock ordering may_commit_transaction() calls spin_lock(&space_info->lock); spin_lock(&delayed_rsv->lock); and update_global_block_rsv() calls spin_lock(&block_rsv->lock); spin_lock(&sinfo->lock); Lockdep complains about this at run time. Everywhere except in update_global_block_rsv(), the space_info lock is the outer lock, therefore the locking order in update_global_block_rsv() is changed. Signed-off-by: Stefan Behrens Signed-off-by: Chris Mason diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 84497f8..6fc2e6f 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -4214,8 +4214,8 @@ static void update_global_block_rsv(struct btrfs_fs_info *fs_info) num_bytes = calc_global_metadata_size(fs_info); - spin_lock(&block_rsv->lock); spin_lock(&sinfo->lock); + spin_lock(&block_rsv->lock); block_rsv->size = num_bytes; @@ -4241,8 +4241,8 @@ static void update_global_block_rsv(struct btrfs_fs_info *fs_info) block_rsv->full = 1; } - spin_unlock(&sinfo->lock); spin_unlock(&block_rsv->lock); + spin_unlock(&sinfo->lock); } static void init_global_block_rsv(struct btrfs_fs_info *fs_info) -- cgit v0.10.2 From 7654b72417e10e294563496e25211200f9b8b6d3 Mon Sep 17 00:00:00 2001 From: Daniel J Blueman Date: Fri, 27 Apr 2012 12:41:46 -0400 Subject: Btrfs: Fix space checking during fs resize Fix out-of-space checking, addressing a warning and potential resource leak when resizing the filesystem down while allocating blocks. Signed-off-by: Daniel J Blueman Reviewed-by: Josef Bacik Signed-off-by: Chris Mason diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index 5a105a0..646ee21 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -3813,7 +3813,7 @@ restart: ret = btrfs_block_rsv_check(rc->extent_root, rc->block_rsv, 5); if (ret < 0) { - if (ret != -EAGAIN) { + if (ret != -ENOSPC) { err = ret; WARN_ON(1); break; -- cgit v0.10.2 From ea505bc99f77f3f9db02bb965bd59ac5db063f60 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 19 Apr 2012 11:48:15 +0530 Subject: spi/pl022: Allow request for higher frequency than maximum possible Currently, if we request for frequency greater than maximum possible, spi driver returns error. For example, if the spi block src frequency is 333/4 MHz, i.e. 83.33.. MHz, maximum frequency programmable would be src/2. Which would come around 41.6... It is difficult to pass frequency in these figures. We normally try to program in round figures, like 42 MHz and it should get programmed to <= requested_frequency, i.e. 41.6... For this to happen, we must not return error even if requested freq is higher than max possible. But should program it to max possible. Reported-by: Vinit Kamalaksha Shenoy Signed-off-by: Viresh Kumar Acked-by: Linus Walleij Signed-off-by: Grant Likely diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c index 8aa44e7..400ae21 100644 --- a/drivers/spi/spi-pl022.c +++ b/drivers/spi/spi-pl022.c @@ -1667,9 +1667,15 @@ static int calculate_effective_freq(struct pl022 *pl022, int freq, struct /* cpsdvsr = 254 & scr = 255 */ min_tclk = spi_rate(rate, CPSDVR_MAX, SCR_MAX); - if (!((freq <= max_tclk) && (freq >= min_tclk))) { + if (freq > max_tclk) + dev_warn(&pl022->adev->dev, + "Max speed that can be programmed is %d Hz, you requested %d\n", + max_tclk, freq); + + if (freq < min_tclk) { dev_err(&pl022->adev->dev, - "controller data is incorrect: out of range frequency"); + "Requested frequency: %d Hz is less than minimum possible %d Hz\n", + freq, min_tclk); return -EINVAL; } -- cgit v0.10.2 From 5794d21ef4639f0e33440927bb903f9598c21e92 Mon Sep 17 00:00:00 2001 From: Sachin Prabhu Date: Tue, 17 Apr 2012 14:36:40 +0100 Subject: Avoid beyond bounds copy while caching ACL When attempting to cache ACLs returned from the server, if the bitmap size + the ACL size is greater than a PAGE_SIZE but the ACL size itself is smaller than a PAGE_SIZE, we can read past the buffer page boundary. Signed-off-by: Sachin Prabhu Reported-by: Jian Li Signed-off-by: Trond Myklebust diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index f5f125f..2ce0698 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -3628,16 +3628,16 @@ out: return ret; } -static void nfs4_write_cached_acl(struct inode *inode, const char *buf, size_t acl_len) +static void nfs4_write_cached_acl(struct inode *inode, struct page **pages, size_t pgbase, size_t acl_len) { struct nfs4_cached_acl *acl; - if (buf && acl_len <= PAGE_SIZE) { + if (pages && acl_len <= PAGE_SIZE) { acl = kmalloc(sizeof(*acl) + acl_len, GFP_KERNEL); if (acl == NULL) goto out; acl->cached = 1; - memcpy(acl->data, buf, acl_len); + _copy_from_pages(acl->data, pages, pgbase, acl_len); } else { acl = kmalloc(sizeof(*acl), GFP_KERNEL); if (acl == NULL) @@ -3670,7 +3670,6 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu struct nfs_getaclres res = { .acl_len = buflen, }; - void *resp_buf; struct rpc_message msg = { .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_GETACL], .rpc_argp = &args, @@ -3705,7 +3704,6 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu * the page we send as a guess */ if (buf == NULL) res.acl_flags |= NFS4_ACL_LEN_REQUEST; - resp_buf = page_address(pages[0]); dprintk("%s buf %p buflen %zu npages %d args.acl_len %zu\n", __func__, buf, buflen, npages, args.acl_len); @@ -3716,9 +3714,9 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu acl_len = res.acl_len - res.acl_data_offset; if (acl_len > args.acl_len) - nfs4_write_cached_acl(inode, NULL, acl_len); + nfs4_write_cached_acl(inode, NULL, 0, acl_len); else - nfs4_write_cached_acl(inode, resp_buf + res.acl_data_offset, + nfs4_write_cached_acl(inode, pages, res.acl_data_offset, acl_len); if (buf) { ret = -ERANGE; diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 9312dd7..203c096 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -4940,7 +4940,7 @@ static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, res->acl_len = attrlen; goto out; } - dprintk("NFS: acl reply: attrlen %zu > page_len %u\n", + dprintk("NFS: acl reply: attrlen %u > page_len %zu\n", attrlen, page_len); return -EINVAL; } -- cgit v0.10.2 From a4dff1bc492ee4a2184d384ae8b5bcab5859e150 Mon Sep 17 00:00:00 2001 From: Stanislav Kinsbursky Date: Fri, 20 Apr 2012 18:11:02 +0400 Subject: SUNRPC: skip dead but not buried clients on PipeFS events These clients can't be safely dereferenced if their counter in 0. Signed-off-by: Stanislav Kinsbursky Signed-off-by: Trond Myklebust diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index 6797246..d10ebc4 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -218,7 +218,8 @@ static struct rpc_clnt *rpc_get_client_for_event(struct net *net, int event) if (((event == RPC_PIPEFS_MOUNT) && clnt->cl_dentry) || ((event == RPC_PIPEFS_UMOUNT) && !clnt->cl_dentry)) continue; - atomic_inc(&clnt->cl_count); + if (atomic_inc_not_zero(&clnt->cl_count) == 0) + continue; spin_unlock(&sn->rpc_client_lock); return clnt; } -- cgit v0.10.2 From 7aab449e5a2ebfa9c5116e87e16536bc4195e4de Mon Sep 17 00:00:00 2001 From: Stanislav Kinsbursky Date: Fri, 20 Apr 2012 18:19:18 +0400 Subject: SUNRPC: skip clients with program without PipeFS entries 1) This is sane. 2) Otherwise there will be soft lockup: do { rpc_get_client_for_event (clnt->cl_dentry == NULL ==> choose) __rpc_pipefs_event (clnt->cl_program->pipe_dir_name == NULL ==> return) } while (1) Signed-off-by: Stanislav Kinsbursky Signed-off-by: Trond Myklebust diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index d10ebc4..8a19849 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -184,8 +184,6 @@ static int __rpc_pipefs_event(struct rpc_clnt *clnt, unsigned long event, switch (event) { case RPC_PIPEFS_MOUNT: - if (clnt->cl_program->pipe_dir_name == NULL) - break; dentry = rpc_setup_pipedir_sb(sb, clnt, clnt->cl_program->pipe_dir_name); BUG_ON(dentry == NULL); @@ -215,6 +213,8 @@ static struct rpc_clnt *rpc_get_client_for_event(struct net *net, int event) spin_lock(&sn->rpc_client_lock); list_for_each_entry(clnt, &sn->all_clients, cl_clients) { + if (clnt->cl_program->pipe_dir_name == NULL) + break; if (((event == RPC_PIPEFS_MOUNT) && clnt->cl_dentry) || ((event == RPC_PIPEFS_UMOUNT) && !clnt->cl_dentry)) continue; -- cgit v0.10.2 From 37629b572cc4e80fc24b4139a24df1a89415d534 Mon Sep 17 00:00:00 2001 From: Stanislav Kinsbursky Date: Fri, 20 Apr 2012 18:19:56 +0400 Subject: SUNRPC: set per-net PipeFS superblock before notification There can be a case, when on MOUNT event RPC client (after it's dentries were created) is not longer hold by anyone except notification callback. I.e. on release this client will be destoroyed. And it's dentries have to be destroyed as well. Which in turn requires per-net PipeFS superblock to be set. Signed-off-by: Stanislav Kinsbursky Signed-off-by: Trond Myklebust diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c index 0af37fc..3b62cf2 100644 --- a/net/sunrpc/rpc_pipe.c +++ b/net/sunrpc/rpc_pipe.c @@ -1126,19 +1126,20 @@ rpc_fill_super(struct super_block *sb, void *data, int silent) return -ENOMEM; dprintk("RPC: sending pipefs MOUNT notification for net %p%s\n", net, NET_NAME(net)); + sn->pipefs_sb = sb; err = blocking_notifier_call_chain(&rpc_pipefs_notifier_list, RPC_PIPEFS_MOUNT, sb); if (err) goto err_depopulate; sb->s_fs_info = get_net(net); - sn->pipefs_sb = sb; return 0; err_depopulate: blocking_notifier_call_chain(&rpc_pipefs_notifier_list, RPC_PIPEFS_UMOUNT, sb); + sn->pipefs_sb = NULL; __rpc_depopulate(root, files, RPCAUTH_lockd, RPCAUTH_RootEOF); return err; } -- cgit v0.10.2 From ea8cfa06795bb30d2ea61f503ef129284492c06a Mon Sep 17 00:00:00 2001 From: Stanislav Kinsbursky Date: Fri, 27 Apr 2012 13:00:17 +0400 Subject: SUNRPC: traverse clients tree on PipeFS event v2: recursion was replaced by loop If client is a clone, then it's parent can not be in the list. But parent's Pipefs dentries have to be created and destroyed. Note: event skip helper for clients introduced Signed-off-by: Stanislav Kinsbursky Signed-off-by: Trond Myklebust diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index 8a19849..d127bd7 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -176,8 +176,16 @@ rpc_setup_pipedir(struct rpc_clnt *clnt, const char *dir_name) return 0; } -static int __rpc_pipefs_event(struct rpc_clnt *clnt, unsigned long event, - struct super_block *sb) +static inline int rpc_clnt_skip_event(struct rpc_clnt *clnt, unsigned long event) +{ + if (((event == RPC_PIPEFS_MOUNT) && clnt->cl_dentry) || + ((event == RPC_PIPEFS_UMOUNT) && !clnt->cl_dentry)) + return 1; + return 0; +} + +static int __rpc_clnt_handle_event(struct rpc_clnt *clnt, unsigned long event, + struct super_block *sb) { struct dentry *dentry; int err = 0; @@ -206,6 +214,20 @@ static int __rpc_pipefs_event(struct rpc_clnt *clnt, unsigned long event, return err; } +static int __rpc_pipefs_event(struct rpc_clnt *clnt, unsigned long event, + struct super_block *sb) +{ + int error = 0; + + for (;; clnt = clnt->cl_parent) { + if (!rpc_clnt_skip_event(clnt, event)) + error = __rpc_clnt_handle_event(clnt, event, sb); + if (error || clnt == clnt->cl_parent) + break; + } + return error; +} + static struct rpc_clnt *rpc_get_client_for_event(struct net *net, int event) { struct sunrpc_net *sn = net_generic(net, sunrpc_net_id); @@ -215,8 +237,7 @@ static struct rpc_clnt *rpc_get_client_for_event(struct net *net, int event) list_for_each_entry(clnt, &sn->all_clients, cl_clients) { if (clnt->cl_program->pipe_dir_name == NULL) break; - if (((event == RPC_PIPEFS_MOUNT) && clnt->cl_dentry) || - ((event == RPC_PIPEFS_UMOUNT) && !clnt->cl_dentry)) + if (rpc_clnt_skip_event(clnt, event)) continue; if (atomic_inc_not_zero(&clnt->cl_count) == 0) continue; -- cgit v0.10.2 From 31e4dda4747713de13889f7c79c7aec341fea61b Mon Sep 17 00:00:00 2001 From: Bryan Schumaker Date: Fri, 27 Apr 2012 13:27:38 -0400 Subject: NFS: Fix SECINFO_NO_NAME I was using the same decoder function for SECINFO and SECINFO_NO_NAME, so it was returning an error when it tried to decode an OP_SECINFO_NO_NAME header as OP_SECINFO. Signed-off-by: Bryan Schumaker Signed-off-by: Trond Myklebust diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 203c096..c77e802 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -5094,16 +5094,13 @@ out_err: return -EINVAL; } -static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) +static int decode_secinfo_common(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) { struct nfs4_secinfo_flavor *sec_flavor; int status; __be32 *p; int i, num_flavors; - status = decode_op_hdr(xdr, OP_SECINFO); - if (status) - goto out; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) goto out_overflow; @@ -5129,6 +5126,7 @@ static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) res->flavors->num_flavors++; } + status = 0; out: return status; out_overflow: @@ -5136,7 +5134,23 @@ out_overflow: return -EIO; } +static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) +{ + int status = decode_op_hdr(xdr, OP_SECINFO); + if (status) + return status; + return decode_secinfo_common(xdr, res); +} + #if defined(CONFIG_NFS_V4_1) +static int decode_secinfo_no_name(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) +{ + int status = decode_op_hdr(xdr, OP_SECINFO_NO_NAME); + if (status) + return status; + return decode_secinfo_common(xdr, res); +} + static int decode_exchange_id(struct xdr_stream *xdr, struct nfs41_exchange_id_res *res) { @@ -6821,7 +6835,7 @@ static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp, status = decode_putrootfh(xdr); if (status) goto out; - status = decode_secinfo(xdr, res); + status = decode_secinfo_no_name(xdr, res); out: return status; } -- cgit v0.10.2 From db0a9593d52f935c80085d8993bdcead1ad30b0c Mon Sep 17 00:00:00 2001 From: Bryan Schumaker Date: Fri, 27 Apr 2012 13:27:39 -0400 Subject: NFS: Handle exceptions coming out of nfs4_proc_fs_locations() We don't want to return -NFS4ERR_WRONGSEC to the VFS because it could cause the kernel to oops. Signed-off-by: Bryan Schumaker Signed-off-by: Trond Myklebust diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 2ce0698..ff7571f 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -4921,7 +4921,7 @@ static void nfs_fixup_referral_attributes(struct nfs_fattr *fattr) fattr->nlink = 2; } -int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name, +static int _nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name, struct nfs4_fs_locations *fs_locations, struct page *page) { struct nfs_server *server = NFS_SERVER(dir); @@ -4961,6 +4961,19 @@ int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name, return status; } +int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name, + struct nfs4_fs_locations *fs_locations, struct page *page) +{ + struct nfs4_exception exception = { }; + int err; + do { + err = nfs4_handle_exception(NFS_SERVER(dir), + _nfs4_proc_fs_locations(dir, name, fs_locations, page), + &exception); + } while (exception.retry); + return err; +} + static int _nfs4_proc_secinfo(struct inode *dir, const struct qstr *name, struct nfs4_secinfo_flavors *flavors) { int status; -- cgit v0.10.2 From 72de53ec4bca39c26709122a8f78bfefe7b6bca4 Mon Sep 17 00:00:00 2001 From: Bryan Schumaker Date: Fri, 27 Apr 2012 13:27:40 -0400 Subject: NFS: Do secinfo as part of lookup Whenever lookup sees wrongsec do a secinfo and retry the lookup to find attributes of the file or directory, such as "is this a referral mountpoint?". This also allows me to remove handling -NFS4ERR_WRONSEC as part of getattr xdr decoding. Signed-off-by: Bryan Schumaker Signed-off-by: Trond Myklebust diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 2476dc6..45966d9 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -234,7 +234,6 @@ extern const u32 nfs41_maxwrite_overhead; /* nfs4proc.c */ #ifdef CONFIG_NFS_V4 extern struct rpc_procinfo nfs4_procedures[]; -void nfs_fixup_secinfo_attributes(struct nfs_fattr *, struct nfs_fh *); #endif extern int nfs4_init_ds_session(struct nfs_client *clp); diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index b6db9e3..c82c2cd 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -205,6 +205,9 @@ struct nfs4_state_maintenance_ops { extern const struct dentry_operations nfs4_dentry_operations; extern const struct inode_operations nfs4_dir_inode_operations; +/* nfs4namespace.c */ +struct rpc_clnt *nfs4_create_sec_client(struct rpc_clnt *, struct inode *, struct qstr *); + /* nfs4proc.c */ extern int nfs4_proc_setclientid(struct nfs_client *, u32, unsigned short, struct rpc_cred *, struct nfs4_setclientid_res *); extern int nfs4_proc_setclientid_confirm(struct nfs_client *, struct nfs4_setclientid_res *arg, struct rpc_cred *); @@ -215,6 +218,7 @@ extern int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait, boo extern int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle); extern int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name, struct nfs4_fs_locations *fs_locations, struct page *page); +extern int nfs4_proc_secinfo(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *); extern int nfs4_release_lockowner(struct nfs4_lock_state *); extern const struct xattr_handler *nfs4_xattr_handlers[]; diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c index 7483a17..9f8681b 100644 --- a/fs/nfs/nfs4namespace.c +++ b/fs/nfs/nfs4namespace.c @@ -132,6 +132,58 @@ static size_t nfs_parse_server_name(char *string, size_t len, return ret; } +static rpc_authflavor_t nfs4_negotiate_security(struct inode *inode, struct qstr *name) +{ + struct page *page; + struct nfs4_secinfo_flavors *flavors; + rpc_authflavor_t flavor; + int err; + + page = alloc_page(GFP_KERNEL); + if (!page) + return -ENOMEM; + flavors = page_address(page); + + err = nfs4_proc_secinfo(inode, name, flavors); + if (err < 0) { + flavor = err; + goto out; + } + + flavor = nfs_find_best_sec(flavors); + +out: + put_page(page); + return flavor; +} + +/* + * Please call rpc_shutdown_client() when you are done with this client. + */ +struct rpc_clnt *nfs4_create_sec_client(struct rpc_clnt *clnt, struct inode *inode, + struct qstr *name) +{ + struct rpc_clnt *clone; + struct rpc_auth *auth; + rpc_authflavor_t flavor; + + flavor = nfs4_negotiate_security(inode, name); + if (flavor < 0) + return ERR_PTR(flavor); + + clone = rpc_clone_client(clnt); + if (IS_ERR(clone)) + return clone; + + auth = rpcauth_create(flavor, clone); + if (!auth) { + rpc_shutdown_client(clone); + clone = ERR_PTR(-EIO); + } + + return clone; +} + static struct vfsmount *try_location(struct nfs_clone_mount *mountdata, char *page, char *page2, const struct nfs4_fs_location *location) diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index ff7571f..3d92fe6 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -2528,39 +2528,69 @@ static int _nfs4_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, return status; } -void nfs_fixup_secinfo_attributes(struct nfs_fattr *fattr, struct nfs_fh *fh) +static void nfs_fixup_secinfo_attributes(struct nfs_fattr *fattr) { - memset(fh, 0, sizeof(struct nfs_fh)); - fattr->fsid.major = 1; fattr->valid |= NFS_ATTR_FATTR_TYPE | NFS_ATTR_FATTR_MODE | - NFS_ATTR_FATTR_NLINK | NFS_ATTR_FATTR_FSID | NFS_ATTR_FATTR_MOUNTPOINT; + NFS_ATTR_FATTR_NLINK | NFS_ATTR_FATTR_MOUNTPOINT; fattr->mode = S_IFDIR | S_IRUGO | S_IXUGO; fattr->nlink = 2; } -static int nfs4_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, struct qstr *name, - struct nfs_fh *fhandle, struct nfs_fattr *fattr) +static int nfs4_proc_lookup_common(struct rpc_clnt **clnt, struct inode *dir, + struct qstr *name, struct nfs_fh *fhandle, + struct nfs_fattr *fattr) { struct nfs4_exception exception = { }; + struct rpc_clnt *client = *clnt; int err; do { - int status; - - status = _nfs4_proc_lookup(clnt, dir, name, fhandle, fattr); - switch (status) { + err = _nfs4_proc_lookup(client, dir, name, fhandle, fattr); + switch (err) { case -NFS4ERR_BADNAME: - return -ENOENT; + err = -ENOENT; + goto out; case -NFS4ERR_MOVED: - return nfs4_get_referral(dir, name, fattr, fhandle); + err = nfs4_get_referral(dir, name, fattr, fhandle); + goto out; case -NFS4ERR_WRONGSEC: - nfs_fixup_secinfo_attributes(fattr, fhandle); + err = -EPERM; + if (client != *clnt) + goto out; + + client = nfs4_create_sec_client(client, dir, name); + if (IS_ERR(client)) + return PTR_ERR(client); + + exception.retry = 1; + break; + default: + err = nfs4_handle_exception(NFS_SERVER(dir), err, &exception); } - err = nfs4_handle_exception(NFS_SERVER(dir), - status, &exception); } while (exception.retry); + +out: + if (err == 0) + *clnt = client; + else if (client != *clnt) + rpc_shutdown_client(client); + return err; } +static int nfs4_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, struct qstr *name, + struct nfs_fh *fhandle, struct nfs_fattr *fattr) +{ + int status; + struct rpc_clnt *client = NFS_CLIENT(dir); + + status = nfs4_proc_lookup_common(&client, dir, name, fhandle, fattr); + if (client != NFS_CLIENT(dir)) { + rpc_shutdown_client(client); + nfs_fixup_secinfo_attributes(fattr); + } + return status; +} + static int _nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry) { struct nfs_server *server = NFS_SERVER(inode); @@ -4996,8 +5026,8 @@ static int _nfs4_proc_secinfo(struct inode *dir, const struct qstr *name, struct return status; } -static int nfs4_proc_secinfo(struct inode *dir, const struct qstr *name, - struct nfs4_secinfo_flavors *flavors) +int nfs4_proc_secinfo(struct inode *dir, const struct qstr *name, + struct nfs4_secinfo_flavors *flavors) { struct nfs4_exception exception = { }; int err; diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index c77e802..c54aae3 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -4258,8 +4258,6 @@ static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, status = decode_attr_error(xdr, bitmap, &err); if (status < 0) goto xdr_error; - if (err == -NFS4ERR_WRONGSEC) - nfs_fixup_secinfo_attributes(fattr, fh); status = decode_attr_filehandle(xdr, bitmap, fh); if (status < 0) -- cgit v0.10.2 From f05d147f7e3cf0d86b3a4bd5603029a7cb109633 Mon Sep 17 00:00:00 2001 From: Bryan Schumaker Date: Fri, 27 Apr 2012 13:27:41 -0400 Subject: NFS: Fix following referral mount points with different security I create a new proc_lookup_mountpoint() to use when submounting an NFS v4 share. This function returns an rpc_clnt to use for performing an fs_locations() call on a referral's mountpoint. Signed-off-by: Bryan Schumaker Signed-off-by: Trond Myklebust diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 45966d9..49c09b4 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -186,10 +186,10 @@ static inline void nfs_fs_proc_exit(void) /* nfs4namespace.c */ #ifdef CONFIG_NFS_V4 -extern struct vfsmount *nfs_do_refmount(struct dentry *dentry); +extern struct vfsmount *nfs_do_refmount(struct rpc_clnt *client, struct dentry *dentry); #else static inline -struct vfsmount *nfs_do_refmount(struct dentry *dentry) +struct vfsmount *nfs_do_refmount(struct rpc_clnt *client, struct dentry *dentry) { return ERR_PTR(-ENOENT); } diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c index 1807866..b9a593d 100644 --- a/fs/nfs/namespace.c +++ b/fs/nfs/namespace.c @@ -200,6 +200,22 @@ out_shutdown: out: return err; } + +static struct rpc_clnt *nfs_lookup_mountpoint(struct inode *dir, + struct qstr *name, + struct nfs_fh *fh, + struct nfs_fattr *fattr) +{ + int err; + + if (NFS_PROTO(dir)->version == 4) + return nfs4_proc_lookup_mountpoint(dir, name, fh, fattr); + + err = NFS_PROTO(dir)->lookup(NFS_SERVER(dir)->client, dir, name, fh, fattr); + if (err) + return ERR_PTR(err); + return rpc_clone_client(NFS_SERVER(dir)->client); +} #else /* CONFIG_NFS_V4 */ static inline int nfs_lookup_with_sec(struct nfs_server *server, struct dentry *parent, struct dentry *dentry, @@ -209,6 +225,17 @@ static inline int nfs_lookup_with_sec(struct nfs_server *server, { return -EPERM; } + +static inline struct rpc_clnt *nfs_lookup_mountpoint(struct inode *dir, + struct qstr *name, + struct nfs_fh *fh, + struct nfs_fattr *fattr) +{ + int err = NFS_PROTO(dir)->lookup(NFS_SERVER(dir)->client, dir, name, fh, fattr); + if (err) + return ERR_PTR(err); + return rpc_clone_client(NFS_SERVER(dir)->client); +} #endif /* CONFIG_NFS_V4 */ /* @@ -226,11 +253,10 @@ static inline int nfs_lookup_with_sec(struct nfs_server *server, struct vfsmount *nfs_d_automount(struct path *path) { struct vfsmount *mnt; - struct nfs_server *server = NFS_SERVER(path->dentry->d_inode); struct dentry *parent; struct nfs_fh *fh = NULL; struct nfs_fattr *fattr = NULL; - int err; + struct rpc_clnt *client; rpc_authflavor_t flavor = RPC_AUTH_UNIX; dprintk("--> nfs_d_automount()\n"); @@ -249,21 +275,19 @@ struct vfsmount *nfs_d_automount(struct path *path) /* Look it up again to get its attributes */ parent = dget_parent(path->dentry); - err = server->nfs_client->rpc_ops->lookup(server->client, parent->d_inode, - &path->dentry->d_name, - fh, fattr); - if (err == -EPERM && NFS_PROTO(parent->d_inode)->secinfo != NULL) - err = nfs_lookup_with_sec(server, parent, path->dentry, path, fh, fattr, &flavor); + client = nfs_lookup_mountpoint(parent->d_inode, &path->dentry->d_name, fh, fattr); dput(parent); - if (err != 0) { - mnt = ERR_PTR(err); + if (IS_ERR(client)) { + mnt = ERR_CAST(client); goto out; } if (fattr->valid & NFS_ATTR_FATTR_V4_REFERRAL) - mnt = nfs_do_refmount(path->dentry); + mnt = nfs_do_refmount(client, path->dentry); else mnt = nfs_do_submount(path->dentry, fh, fattr, flavor); + rpc_shutdown_client(client); + if (IS_ERR(mnt)) goto out; diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index c82c2cd..8d75021 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -216,8 +216,10 @@ extern int nfs4_init_clientid(struct nfs_client *, struct rpc_cred *); extern int nfs41_init_clientid(struct nfs_client *, struct rpc_cred *); extern int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait, bool roc); extern int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle); -extern int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name, - struct nfs4_fs_locations *fs_locations, struct page *page); +extern int nfs4_proc_fs_locations(struct rpc_clnt *, struct inode *, const struct qstr *, + struct nfs4_fs_locations *, struct page *); +extern struct rpc_clnt *nfs4_proc_lookup_mountpoint(struct inode *, struct qstr *, + struct nfs_fh *, struct nfs_fattr *); extern int nfs4_proc_secinfo(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *); extern int nfs4_release_lockowner(struct nfs4_lock_state *); extern const struct xattr_handler *nfs4_xattr_handlers[]; diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c index 9f8681b..a7f3ded 100644 --- a/fs/nfs/nfs4namespace.c +++ b/fs/nfs/nfs4namespace.c @@ -300,7 +300,7 @@ out: * @dentry - dentry of referral * */ -struct vfsmount *nfs_do_refmount(struct dentry *dentry) +struct vfsmount *nfs_do_refmount(struct rpc_clnt *client, struct dentry *dentry) { struct vfsmount *mnt = ERR_PTR(-ENOMEM); struct dentry *parent; @@ -326,7 +326,7 @@ struct vfsmount *nfs_do_refmount(struct dentry *dentry) dprintk("%s: getting locations for %s/%s\n", __func__, parent->d_name.name, dentry->d_name.name); - err = nfs4_proc_fs_locations(parent->d_inode, &dentry->d_name, fs_locations, page); + err = nfs4_proc_fs_locations(client, parent->d_inode, &dentry->d_name, fs_locations, page); dput(parent); if (err != 0 || fs_locations->nlocations <= 0 || diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 3d92fe6..75eb883 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -2377,8 +2377,9 @@ static int nfs4_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle, * Note that we'll actually follow the referral later when * we detect fsid mismatch in inode revalidation */ -static int nfs4_get_referral(struct inode *dir, const struct qstr *name, - struct nfs_fattr *fattr, struct nfs_fh *fhandle) +static int nfs4_get_referral(struct rpc_clnt *client, struct inode *dir, + const struct qstr *name, struct nfs_fattr *fattr, + struct nfs_fh *fhandle) { int status = -ENOMEM; struct page *page = NULL; @@ -2391,7 +2392,7 @@ static int nfs4_get_referral(struct inode *dir, const struct qstr *name, if (locations == NULL) goto out; - status = nfs4_proc_fs_locations(dir, name, locations, page); + status = nfs4_proc_fs_locations(client, dir, name, locations, page); if (status != 0) goto out; /* Make sure server returned a different fsid for the referral */ @@ -2550,7 +2551,7 @@ static int nfs4_proc_lookup_common(struct rpc_clnt **clnt, struct inode *dir, err = -ENOENT; goto out; case -NFS4ERR_MOVED: - err = nfs4_get_referral(dir, name, fattr, fhandle); + err = nfs4_get_referral(client, dir, name, fattr, fhandle); goto out; case -NFS4ERR_WRONGSEC: err = -EPERM; @@ -2591,6 +2592,21 @@ static int nfs4_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, struct qst return status; } +struct rpc_clnt * +nfs4_proc_lookup_mountpoint(struct inode *dir, struct qstr *name, + struct nfs_fh *fhandle, struct nfs_fattr *fattr) +{ + int status; + struct rpc_clnt *client = rpc_clone_client(NFS_CLIENT(dir)); + + status = nfs4_proc_lookup_common(&client, dir, name, fhandle, fattr); + if (status < 0) { + rpc_shutdown_client(client); + return ERR_PTR(status); + } + return client; +} + static int _nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry) { struct nfs_server *server = NFS_SERVER(inode); @@ -4951,8 +4967,10 @@ static void nfs_fixup_referral_attributes(struct nfs_fattr *fattr) fattr->nlink = 2; } -static int _nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name, - struct nfs4_fs_locations *fs_locations, struct page *page) +static int _nfs4_proc_fs_locations(struct rpc_clnt *client, struct inode *dir, + const struct qstr *name, + struct nfs4_fs_locations *fs_locations, + struct page *page) { struct nfs_server *server = NFS_SERVER(dir); u32 bitmask[2] = { @@ -4986,19 +5004,21 @@ static int _nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name, nfs_fattr_init(&fs_locations->fattr); fs_locations->server = server; fs_locations->nlocations = 0; - status = nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0); + status = nfs4_call_sync(client, server, &msg, &args.seq_args, &res.seq_res, 0); dprintk("%s: returned status = %d\n", __func__, status); return status; } -int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name, - struct nfs4_fs_locations *fs_locations, struct page *page) +int nfs4_proc_fs_locations(struct rpc_clnt *client, struct inode *dir, + const struct qstr *name, + struct nfs4_fs_locations *fs_locations, + struct page *page) { struct nfs4_exception exception = { }; int err; do { err = nfs4_handle_exception(NFS_SERVER(dir), - _nfs4_proc_fs_locations(dir, name, fs_locations, page), + _nfs4_proc_fs_locations(client, dir, name, fs_locations, page), &exception); } while (exception.retry); return err; -- cgit v0.10.2 From 7e6eb683d260d9325f0d1bd911518d5ed3cb4f0c Mon Sep 17 00:00:00 2001 From: Bryan Schumaker Date: Fri, 27 Apr 2012 13:27:42 -0400 Subject: NFS: Honor the authflavor set in the clone mount data The authflavor is set in an nfs_clone_mount structure and passed to the xdev_mount() functions where it was promptly ignored. Instead, use it to initialize an rpc_clnt for the cloned server. Signed-off-by: Bryan Schumaker Signed-off-by: Trond Myklebust diff --git a/fs/nfs/client.c b/fs/nfs/client.c index da7b5e4..60f7e4e 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -1729,7 +1729,8 @@ error: */ struct nfs_server *nfs_clone_server(struct nfs_server *source, struct nfs_fh *fh, - struct nfs_fattr *fattr) + struct nfs_fattr *fattr, + rpc_authflavor_t flavor) { struct nfs_server *server; struct nfs_fattr *fattr_fsinfo; @@ -1758,7 +1759,7 @@ struct nfs_server *nfs_clone_server(struct nfs_server *source, error = nfs_init_server_rpcclient(server, source->client->cl_timeout, - source->client->cl_auth->au_flavor); + flavor); if (error < 0) goto out_free_server; if (!IS_ERR(source->client_acl)) diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 49c09b4..b777bda 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -165,7 +165,8 @@ extern struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *, extern void nfs_free_server(struct nfs_server *server); extern struct nfs_server *nfs_clone_server(struct nfs_server *, struct nfs_fh *, - struct nfs_fattr *); + struct nfs_fattr *, + rpc_authflavor_t); extern void nfs_mark_client_ready(struct nfs_client *clp, int state); extern int nfs4_check_client_ready(struct nfs_client *clp); extern struct nfs_client *nfs4_set_ds_client(struct nfs_client* mds_clp, diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c index b9a593d..78dde30 100644 --- a/fs/nfs/namespace.c +++ b/fs/nfs/namespace.c @@ -257,7 +257,6 @@ struct vfsmount *nfs_d_automount(struct path *path) struct nfs_fh *fh = NULL; struct nfs_fattr *fattr = NULL; struct rpc_clnt *client; - rpc_authflavor_t flavor = RPC_AUTH_UNIX; dprintk("--> nfs_d_automount()\n"); @@ -285,7 +284,7 @@ struct vfsmount *nfs_d_automount(struct path *path) if (fattr->valid & NFS_ATTR_FATTR_V4_REFERRAL) mnt = nfs_do_refmount(client, path->dentry); else - mnt = nfs_do_submount(path->dentry, fh, fattr, flavor); + mnt = nfs_do_submount(path->dentry, fh, fattr, client->cl_auth->au_flavor); rpc_shutdown_client(client); if (IS_ERR(mnt)) diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 1e6715f..4ac7fca 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -2428,7 +2428,7 @@ nfs_xdev_mount(struct file_system_type *fs_type, int flags, dprintk("--> nfs_xdev_mount()\n"); /* create a new volume representation */ - server = nfs_clone_server(NFS_SB(data->sb), data->fh, data->fattr); + server = nfs_clone_server(NFS_SB(data->sb), data->fh, data->fattr, data->authflavor); if (IS_ERR(server)) { error = PTR_ERR(server); goto out_err_noserver; @@ -2955,7 +2955,7 @@ nfs4_xdev_mount(struct file_system_type *fs_type, int flags, dprintk("--> nfs4_xdev_mount()\n"); /* create a new volume representation */ - server = nfs_clone_server(NFS_SB(data->sb), data->fh, data->fattr); + server = nfs_clone_server(NFS_SB(data->sb), data->fh, data->fattr, data->authflavor); if (IS_ERR(server)) { error = PTR_ERR(server); goto out_err_noserver; -- cgit v0.10.2 From e245d4250d0326cfcf7c816a2081b6ab2ea810be Mon Sep 17 00:00:00 2001 From: Bryan Schumaker Date: Fri, 27 Apr 2012 13:27:43 -0400 Subject: NFS: Remove unused function nfs_lookup_with_sec() This fixes a compiler warning. Signed-off-by: Bryan Schumaker Signed-off-by: Trond Myklebust diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c index 78dde30..d51868e 100644 --- a/fs/nfs/namespace.c +++ b/fs/nfs/namespace.c @@ -148,59 +148,6 @@ rpc_authflavor_t nfs_find_best_sec(struct nfs4_secinfo_flavors *flavors) return pseudoflavor; } -static int nfs_negotiate_security(const struct dentry *parent, - const struct dentry *dentry, - rpc_authflavor_t *flavor) -{ - struct page *page; - struct nfs4_secinfo_flavors *flavors; - int (*secinfo)(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *); - int ret = -EPERM; - - secinfo = NFS_PROTO(parent->d_inode)->secinfo; - if (secinfo != NULL) { - page = alloc_page(GFP_KERNEL); - if (!page) { - ret = -ENOMEM; - goto out; - } - flavors = page_address(page); - ret = secinfo(parent->d_inode, &dentry->d_name, flavors); - *flavor = nfs_find_best_sec(flavors); - put_page(page); - } - -out: - return ret; -} - -static int nfs_lookup_with_sec(struct nfs_server *server, struct dentry *parent, - struct dentry *dentry, struct path *path, - struct nfs_fh *fh, struct nfs_fattr *fattr, - rpc_authflavor_t *flavor) -{ - struct rpc_clnt *clone; - struct rpc_auth *auth; - int err; - - err = nfs_negotiate_security(parent, path->dentry, flavor); - if (err < 0) - goto out; - clone = rpc_clone_client(server->client); - auth = rpcauth_create(*flavor, clone); - if (!auth) { - err = -EIO; - goto out_shutdown; - } - err = server->nfs_client->rpc_ops->lookup(clone, parent->d_inode, - &path->dentry->d_name, - fh, fattr); -out_shutdown: - rpc_shutdown_client(clone); -out: - return err; -} - static struct rpc_clnt *nfs_lookup_mountpoint(struct inode *dir, struct qstr *name, struct nfs_fh *fh, @@ -217,15 +164,6 @@ static struct rpc_clnt *nfs_lookup_mountpoint(struct inode *dir, return rpc_clone_client(NFS_SERVER(dir)->client); } #else /* CONFIG_NFS_V4 */ -static inline int nfs_lookup_with_sec(struct nfs_server *server, - struct dentry *parent, struct dentry *dentry, - struct path *path, struct nfs_fh *fh, - struct nfs_fattr *fattr, - rpc_authflavor_t *flavor) -{ - return -EPERM; -} - static inline struct rpc_clnt *nfs_lookup_mountpoint(struct inode *dir, struct qstr *name, struct nfs_fh *fh, -- cgit v0.10.2 From 22ac3e82e1d3e5cad92538fe4ab51906cb220444 Mon Sep 17 00:00:00 2001 From: Scott Jiang Date: Mon, 23 Apr 2012 18:18:08 -0400 Subject: spi/bfin5xx: rename config macro name for bfin5xx spi controller driver This controller is only for blackfin 5xx soc, so rename it to BFIN5XX Signed-off-by: Scott Jiang Signed-off-by: Grant Likely diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index 3ed7483..00c0240 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -74,7 +74,7 @@ config SPI_ATMEL This selects a driver for the Atmel SPI Controller, present on many AT32 (AVR32) and AT91 (ARM) chips. -config SPI_BFIN +config SPI_BFIN5XX tristate "SPI controller driver for ADI Blackfin5xx" depends on BLACKFIN help diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index a1d48e0..9d75d21 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -15,7 +15,7 @@ obj-$(CONFIG_SPI_ATMEL) += spi-atmel.o obj-$(CONFIG_SPI_ATH79) += spi-ath79.o obj-$(CONFIG_SPI_AU1550) += spi-au1550.o obj-$(CONFIG_SPI_BCM63XX) += spi-bcm63xx.o -obj-$(CONFIG_SPI_BFIN) += spi-bfin5xx.o +obj-$(CONFIG_SPI_BFIN5XX) += spi-bfin5xx.o obj-$(CONFIG_SPI_BFIN_SPORT) += spi-bfin-sport.o obj-$(CONFIG_SPI_BITBANG) += spi-bitbang.o obj-$(CONFIG_SPI_BUTTERFLY) += spi-butterfly.o -- cgit v0.10.2 From 488e1a9de27f0a299fc185f0b5c67246a3f0c6c9 Mon Sep 17 00:00:00 2001 From: Scott Jiang Date: Mon, 23 Apr 2012 18:18:09 -0400 Subject: spi/spi-bfin-sport: move word length setup to transfer handler Each transfer may have its own bits per word. Signed-off-by: Scott Jiang Signed-off-by: Grant Likely diff --git a/drivers/spi/spi-bfin-sport.c b/drivers/spi/spi-bfin-sport.c index 248a2cc..bfd9047 100644 --- a/drivers/spi/spi-bfin-sport.c +++ b/drivers/spi/spi-bfin-sport.c @@ -252,19 +252,15 @@ static void bfin_sport_spi_restore_state(struct bfin_sport_spi_master_data *drv_data) { struct bfin_sport_spi_slave_data *chip = drv_data->cur_chip; - unsigned int bits = (drv_data->ops == &bfin_sport_transfer_ops_u8 ? 7 : 15); bfin_sport_spi_disable(drv_data); dev_dbg(drv_data->dev, "restoring spi ctl state\n"); bfin_write(&drv_data->regs->tcr1, chip->ctl_reg); - bfin_write(&drv_data->regs->tcr2, bits); bfin_write(&drv_data->regs->tclkdiv, chip->baud); - bfin_write(&drv_data->regs->tfsdiv, bits); SSYNC(); bfin_write(&drv_data->regs->rcr1, chip->ctl_reg & ~(ITCLK | ITFS)); - bfin_write(&drv_data->regs->rcr2, bits); SSYNC(); bfin_sport_spi_cs_active(chip); @@ -425,6 +421,9 @@ bfin_sport_spi_pump_transfers(unsigned long data) drv_data->ops = &bfin_sport_transfer_ops_u8; else drv_data->ops = &bfin_sport_transfer_ops_u16; + bfin_write(&drv_data->regs->tcr2, bits_per_word - 1); + bfin_write(&drv_data->regs->tfsdiv, bits_per_word - 1); + bfin_write(&drv_data->regs->rcr2, bits_per_word - 1); drv_data->state = RUNNING_STATE; -- cgit v0.10.2 From 7666fd8b02af87a8b672b00d47e56d77f709127e Mon Sep 17 00:00:00 2001 From: Scott Jiang Date: Mon, 23 Apr 2012 18:18:10 -0400 Subject: spi/bfin_spi: drop bits_per_word from client data No other SPI controller has this field, and SPI clients should be setting this up in their own drivers. So drop it from the Blackfin controller to keep people from using it. Signed-off-by: Mike Frysinger Signed-off-by: Scott Jiang Signed-off-by: Grant Likely diff --git a/drivers/spi/spi-bfin5xx.c b/drivers/spi/spi-bfin5xx.c index 3b83ff8..c0cdcb7c8 100644 --- a/drivers/spi/spi-bfin5xx.c +++ b/drivers/spi/spi-bfin5xx.c @@ -1026,7 +1026,6 @@ static int bfin_spi_setup(struct spi_device *spi) chip->cs_chg_udelay = chip_info->cs_chg_udelay; chip->idle_tx_val = chip_info->idle_tx_val; chip->pio_interrupt = chip_info->pio_interrupt; - spi->bits_per_word = chip_info->bits_per_word; } else { /* force a default base state */ chip->ctl_reg &= bfin_ctl_reg; -- cgit v0.10.2 From 8d9d2a4b6ca0013b62a438808d22bdd615abcd00 Mon Sep 17 00:00:00 2001 From: Scott Jiang Date: Mon, 23 Apr 2012 18:18:11 -0400 Subject: spi/spi_bfin_sport: drop bits_per_word from client data Since the member was dropped from the common Blackfin header, we need to stop using it in the SPORT driver too. Signed-off-by: Mike Frysinger Signed-off-by: Scott Jiang Signed-off-by: Grant Likely diff --git a/drivers/spi/spi-bfin-sport.c b/drivers/spi/spi-bfin-sport.c index bfd9047..1fe5119 100644 --- a/drivers/spi/spi-bfin-sport.c +++ b/drivers/spi/spi-bfin-sport.c @@ -416,11 +416,12 @@ bfin_sport_spi_pump_transfers(unsigned long data) drv_data->cs_change = transfer->cs_change; /* Bits per word setup */ - bits_per_word = transfer->bits_per_word ? : message->spi->bits_per_word; - if (bits_per_word == 8) - drv_data->ops = &bfin_sport_transfer_ops_u8; - else + bits_per_word = transfer->bits_per_word ? : + message->spi->bits_per_word ? : 8; + if (bits_per_word % 16 == 0) drv_data->ops = &bfin_sport_transfer_ops_u16; + else + drv_data->ops = &bfin_sport_transfer_ops_u8; bfin_write(&drv_data->regs->tcr2, bits_per_word - 1); bfin_write(&drv_data->regs->tfsdiv, bits_per_word - 1); bfin_write(&drv_data->regs->rcr2, bits_per_word - 1); @@ -597,11 +598,12 @@ bfin_sport_spi_setup(struct spi_device *spi) } chip->cs_chg_udelay = chip_info->cs_chg_udelay; chip->idle_tx_val = chip_info->idle_tx_val; - spi->bits_per_word = chip_info->bits_per_word; } } - if (spi->bits_per_word != 8 && spi->bits_per_word != 16) { + if (spi->bits_per_word % 8) { + dev_err(&spi->dev, "%d bits_per_word is not supported\n", + spi->bits_per_word); ret = -EINVAL; goto error; } -- cgit v0.10.2 From 128465ca7c0775609b1c24f66cd6bddac5f59c9b Mon Sep 17 00:00:00 2001 From: Scott Jiang Date: Mon, 23 Apr 2012 18:18:12 -0400 Subject: spi/spi-bfin5xx: fix reversed if condition in interrupt mode This condition is used to determine 8 bits or 16 and 32 bits transfer. Obviously it is reversed. Signed-off-by: Scott Jiang Signed-off-by: Grant Likely diff --git a/drivers/spi/spi-bfin5xx.c b/drivers/spi/spi-bfin5xx.c index c0cdcb7c8..432d019 100644 --- a/drivers/spi/spi-bfin5xx.c +++ b/drivers/spi/spi-bfin5xx.c @@ -396,7 +396,7 @@ static irqreturn_t bfin_spi_pio_irq_handler(int irq, void *dev_id) /* last read */ if (drv_data->rx) { dev_dbg(&drv_data->pdev->dev, "last read\n"); - if (n_bytes % 2) { + if (!(n_bytes % 2)) { u16 *buf = (u16 *)drv_data->rx; for (loop = 0; loop < n_bytes / 2; loop++) *buf++ = bfin_read(&drv_data->regs->rdbr); @@ -424,7 +424,7 @@ static irqreturn_t bfin_spi_pio_irq_handler(int irq, void *dev_id) if (drv_data->rx && drv_data->tx) { /* duplex */ dev_dbg(&drv_data->pdev->dev, "duplex: write_TDBR\n"); - if (n_bytes % 2) { + if (!(n_bytes % 2)) { u16 *buf = (u16 *)drv_data->rx; u16 *buf2 = (u16 *)drv_data->tx; for (loop = 0; loop < n_bytes / 2; loop++) { @@ -442,7 +442,7 @@ static irqreturn_t bfin_spi_pio_irq_handler(int irq, void *dev_id) } else if (drv_data->rx) { /* read */ dev_dbg(&drv_data->pdev->dev, "read: write_TDBR\n"); - if (n_bytes % 2) { + if (!(n_bytes % 2)) { u16 *buf = (u16 *)drv_data->rx; for (loop = 0; loop < n_bytes / 2; loop++) { *buf++ = bfin_read(&drv_data->regs->rdbr); @@ -458,7 +458,7 @@ static irqreturn_t bfin_spi_pio_irq_handler(int irq, void *dev_id) } else if (drv_data->tx) { /* write */ dev_dbg(&drv_data->pdev->dev, "write: write_TDBR\n"); - if (n_bytes % 2) { + if (!(n_bytes % 2)) { u16 *buf = (u16 *)drv_data->tx; for (loop = 0; loop < n_bytes / 2; loop++) { bfin_read(&drv_data->regs->rdbr); -- cgit v0.10.2 From 2431a8154634027ce3915200699f26fb3725a1f2 Mon Sep 17 00:00:00 2001 From: Scott Jiang Date: Mon, 23 Apr 2012 18:18:13 -0400 Subject: spi/spi-bfin5xx: Fix flush of last bit after each spi transfer This patch ensures that the last bit of a transfer gets correctly flushed out of the register. Signed-off-by: Scott Jiang Signed-off-by: Grant Likely diff --git a/drivers/spi/spi-bfin5xx.c b/drivers/spi/spi-bfin5xx.c index 432d019..9bb4d4a 100644 --- a/drivers/spi/spi-bfin5xx.c +++ b/drivers/spi/spi-bfin5xx.c @@ -587,6 +587,7 @@ static void bfin_spi_pump_transfers(unsigned long data) if (message->state == DONE_STATE) { dev_dbg(&drv_data->pdev->dev, "transfer: all done!\n"); message->status = 0; + bfin_spi_flush(drv_data); bfin_spi_giveback(drv_data); return; } @@ -870,8 +871,10 @@ static void bfin_spi_pump_transfers(unsigned long data) message->actual_length += drv_data->len_in_bytes; /* Move to next transfer of this msg */ message->state = bfin_spi_next_transfer(drv_data); - if (drv_data->cs_change) + if (drv_data->cs_change && message->state != DONE_STATE) { + bfin_spi_flush(drv_data); bfin_spi_cs_deactive(drv_data, chip); + } } /* Schedule next transfer tasklet */ -- cgit v0.10.2 From fede766f28dd766d4e8feb321fdb19edb21ef6fb Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Fri, 27 Apr 2012 14:23:22 -0400 Subject: Btrfs: avoid deadlocks from GFP_KERNEL allocations during btrfs_real_readdir Btrfs has an optimization where it will preallocate dentries during readdir to fill in enough information to open the inode without an extra lookup. But, we're calling d_alloc, which is doing GFP_KERNEL allocations, and that leads to deadlocks because our readdir code has tree locks held. For now, disable this optimization. We'll fix the gfp mask in the next merge window. Signed-off-by: Chris Mason diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index d953f88..3ce7805 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -4192,7 +4192,6 @@ static int btrfs_real_readdir(struct file *filp, void *dirent, struct btrfs_path *path; struct list_head ins_list; struct list_head del_list; - struct qstr q; int ret; struct extent_buffer *leaf; int slot; @@ -4283,7 +4282,6 @@ static int btrfs_real_readdir(struct file *filp, void *dirent, while (di_cur < di_total) { struct btrfs_key location; - struct dentry *tmp; if (verify_dir_item(root, leaf, di)) break; @@ -4304,33 +4302,7 @@ static int btrfs_real_readdir(struct file *filp, void *dirent, d_type = btrfs_filetype_table[btrfs_dir_type(leaf, di)]; btrfs_dir_item_key_to_cpu(leaf, di, &location); - q.name = name_ptr; - q.len = name_len; - q.hash = full_name_hash(q.name, q.len); - tmp = d_lookup(filp->f_dentry, &q); - if (!tmp) { - struct btrfs_key *newkey; - - newkey = kzalloc(sizeof(struct btrfs_key), - GFP_NOFS); - if (!newkey) - goto no_dentry; - tmp = d_alloc(filp->f_dentry, &q); - if (!tmp) { - kfree(newkey); - dput(tmp); - goto no_dentry; - } - memcpy(newkey, &location, - sizeof(struct btrfs_key)); - tmp->d_fsdata = newkey; - tmp->d_flags |= DCACHE_NEED_LOOKUP; - d_rehash(tmp); - dput(tmp); - } else { - dput(tmp); - } -no_dentry: + /* is this a reference to our own snapshot? If so * skip it. * -- cgit v0.10.2 From dc7fdde39e4962b1a88741f7eba2a6b3be1285d8 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Fri, 27 Apr 2012 14:31:29 -0400 Subject: Btrfs: reduce lock contention during extent insertion We're spending huge amounts of time on lock contention during end_io processing because we unconditionally assume we are overwriting an existing extent in the file for each IO. This checks to see if we are outside i_size, and if so, it uses a less expensive readonly search of the btree to look for existing extents. Signed-off-by: Chris Mason diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index d83260d..53bf2d7 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -567,6 +567,7 @@ int btrfs_drop_extents(struct btrfs_trans_handle *trans, struct inode *inode, int extent_type; int recow; int ret; + int modify_tree = -1; if (drop_cache) btrfs_drop_extent_cache(inode, start, end - 1, 0); @@ -575,10 +576,13 @@ int btrfs_drop_extents(struct btrfs_trans_handle *trans, struct inode *inode, if (!path) return -ENOMEM; + if (start >= BTRFS_I(inode)->disk_i_size) + modify_tree = 0; + while (1) { recow = 0; ret = btrfs_lookup_file_extent(trans, root, path, ino, - search_start, -1); + search_start, modify_tree); if (ret < 0) break; if (ret > 0 && path->slots[0] > 0 && search_start == start) { @@ -634,7 +638,8 @@ next_slot: } search_start = max(key.offset, start); - if (recow) { + if (recow || !modify_tree) { + modify_tree = -1; btrfs_release_path(path); continue; } -- cgit v0.10.2 From 1cc2699057bafc512137272e1e848640bad14a41 Mon Sep 17 00:00:00 2001 From: Franky Lin Date: Mon, 23 Apr 2012 14:24:52 -0700 Subject: brcm80211: fmac: fix SDIO function 0 register r/w issue SDIO stack doesn't have a structure for function 0. The structure pointer stored in card->sdio_func[0] is actually for function 1. With current implementation the register read/write is applied to function 1. This pathch fixes the issue. Reviewed-by: Pieter-Paul Giesberts Reviewed-by: Arend van Spriel Reviewed-by: Florian Fainelli Reviewed-by: Johannes Berg Signed-off-by: Franky Lin Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c index 4688904..758c115 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c @@ -108,9 +108,15 @@ static inline int brcmf_sdioh_f0_write_byte(struct brcmf_sdio_dev *sdiodev, sdio_release_host(sdfunc); } } else if (regaddr == SDIO_CCCR_ABORT) { + sdfunc = kmemdup(sdiodev->func[0], sizeof(struct sdio_func), + GFP_KERNEL); + if (!sdfunc) + return -ENOMEM; + sdfunc->num = 0; sdio_claim_host(sdfunc); sdio_writeb(sdfunc, *byte, regaddr, &err_ret); sdio_release_host(sdfunc); + kfree(sdfunc); } else if (regaddr < 0xF0) { brcmf_dbg(ERROR, "F0 Wr:0x%02x: write disallowed\n", regaddr); err_ret = -EPERM; @@ -486,7 +492,7 @@ static int brcmf_ops_sdio_probe(struct sdio_func *func, kfree(bus_if); return -ENOMEM; } - sdiodev->func[0] = func->card->sdio_func[0]; + sdiodev->func[0] = func; sdiodev->func[1] = func; sdiodev->bus_if = bus_if; bus_if->bus_priv.sdio = sdiodev; -- cgit v0.10.2 From b948a85c1f26d48395de8c6c7e392f008f1be666 Mon Sep 17 00:00:00 2001 From: Franky Lin Date: Mon, 23 Apr 2012 14:24:53 -0700 Subject: brcm80211: fmac: fix missing completion events issue dpc takes care of all data packets transmissions for sdio function 2. It is possible that it misses some completion events when the traffic is heavy or it's running on a slow cpu. A linked list is introduced to make sure dpc is invoked whenever needed. Reviewed-by: Pieter-Paul Giesberts Reviewed-by: Arend van Spriel Signed-off-by: Franky Lin Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c index 2bf5dda..eb3829b 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c @@ -574,6 +574,8 @@ struct brcmf_sdio { struct task_struct *dpc_tsk; struct completion dpc_wait; + struct list_head dpc_tsklst; + spinlock_t dpc_tl_lock; struct semaphore sdsem; @@ -2594,29 +2596,58 @@ clkwait: return resched; } +static inline void brcmf_sdbrcm_adddpctsk(struct brcmf_sdio *bus) +{ + struct list_head *new_hd; + unsigned long flags; + + if (in_interrupt()) + new_hd = kzalloc(sizeof(struct list_head), GFP_ATOMIC); + else + new_hd = kzalloc(sizeof(struct list_head), GFP_KERNEL); + if (new_hd == NULL) + return; + + spin_lock_irqsave(&bus->dpc_tl_lock, flags); + list_add_tail(new_hd, &bus->dpc_tsklst); + spin_unlock_irqrestore(&bus->dpc_tl_lock, flags); +} + static int brcmf_sdbrcm_dpc_thread(void *data) { struct brcmf_sdio *bus = (struct brcmf_sdio *) data; + struct list_head *cur_hd, *tmp_hd; + unsigned long flags; allow_signal(SIGTERM); /* Run until signal received */ while (1) { if (kthread_should_stop()) break; - if (!wait_for_completion_interruptible(&bus->dpc_wait)) { - /* Call bus dpc unless it indicated down - (then clean stop) */ - if (bus->sdiodev->bus_if->state != BRCMF_BUS_DOWN) { - if (brcmf_sdbrcm_dpc(bus)) - complete(&bus->dpc_wait); - } else { + + if (list_empty(&bus->dpc_tsklst)) + if (wait_for_completion_interruptible(&bus->dpc_wait)) + break; + + spin_lock_irqsave(&bus->dpc_tl_lock, flags); + list_for_each_safe(cur_hd, tmp_hd, &bus->dpc_tsklst) { + spin_unlock_irqrestore(&bus->dpc_tl_lock, flags); + + if (bus->sdiodev->bus_if->state == BRCMF_BUS_DOWN) { /* after stopping the bus, exit thread */ brcmf_sdbrcm_bus_stop(bus->sdiodev->dev); bus->dpc_tsk = NULL; break; } - } else - break; + + if (brcmf_sdbrcm_dpc(bus)) + brcmf_sdbrcm_adddpctsk(bus); + + spin_lock_irqsave(&bus->dpc_tl_lock, flags); + list_del(cur_hd); + kfree(cur_hd); + } + spin_unlock_irqrestore(&bus->dpc_tl_lock, flags); } return 0; } @@ -2669,8 +2700,10 @@ static int brcmf_sdbrcm_bus_txdata(struct device *dev, struct sk_buff *pkt) /* Schedule DPC if needed to send queued packet(s) */ if (!bus->dpc_sched) { bus->dpc_sched = true; - if (bus->dpc_tsk) + if (bus->dpc_tsk) { + brcmf_sdbrcm_adddpctsk(bus); complete(&bus->dpc_wait); + } } return ret; @@ -3514,8 +3547,10 @@ void brcmf_sdbrcm_isr(void *arg) brcmf_dbg(ERROR, "isr w/o interrupt configured!\n"); bus->dpc_sched = true; - if (bus->dpc_tsk) + if (bus->dpc_tsk) { + brcmf_sdbrcm_adddpctsk(bus); complete(&bus->dpc_wait); + } } static bool brcmf_sdbrcm_bus_watchdog(struct brcmf_sdio *bus) @@ -3559,8 +3594,10 @@ static bool brcmf_sdbrcm_bus_watchdog(struct brcmf_sdio *bus) bus->ipend = true; bus->dpc_sched = true; - if (bus->dpc_tsk) + if (bus->dpc_tsk) { + brcmf_sdbrcm_adddpctsk(bus); complete(&bus->dpc_wait); + } } } @@ -3897,6 +3934,8 @@ void *brcmf_sdbrcm_probe(u32 regsva, struct brcmf_sdio_dev *sdiodev) } /* Initialize DPC thread */ init_completion(&bus->dpc_wait); + INIT_LIST_HEAD(&bus->dpc_tsklst); + spin_lock_init(&bus->dpc_tl_lock); bus->dpc_tsk = kthread_run(brcmf_sdbrcm_dpc_thread, bus, "brcmf_dpc"); if (IS_ERR(bus->dpc_tsk)) { -- cgit v0.10.2 From 3708dc248946daba8802c8f31a68dca81ffc445f Mon Sep 17 00:00:00 2001 From: Jonathan Bither Date: Tue, 24 Apr 2012 05:20:15 -0400 Subject: ath5k: add missing iounmap to AHB probe removal When our driver device is removed on the AHB bus, our IO memory is never unmapped. Signed-off-by: Jonathan Bither Reviewed-by: Pavel Roskin Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath5k/ahb.c b/drivers/net/wireless/ath/ath5k/ahb.c index 8c50d9d..aec33cc 100644 --- a/drivers/net/wireless/ath/ath5k/ahb.c +++ b/drivers/net/wireless/ath/ath5k/ahb.c @@ -220,6 +220,7 @@ static int ath_ahb_remove(struct platform_device *pdev) } ath5k_deinit_ah(ah); + iounmap(ah->iobase); platform_set_drvdata(pdev, NULL); ieee80211_free_hw(hw); -- cgit v0.10.2 From 1ed2ec37b44e86eaa8e0a03b908a39c80f65ee45 Mon Sep 17 00:00:00 2001 From: Wey-Yi Guy Date: Wed, 25 Apr 2012 08:10:08 -0700 Subject: iwlwifi: use 6000G2B for 6030 device series "iwlwifi: use correct released ucode version" change the ucode api ok from 6000G2 to 6000G2B, but it shall belong to 6030 device series, not the 6005 device series. Fix it Cc: stable@vger.kernel.org #3.3+ Signed-off-by: Wey-Yi Guy Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c index b1b6951..f0c9150 100644 --- a/drivers/net/wireless/iwlwifi/iwl-6000.c +++ b/drivers/net/wireless/iwlwifi/iwl-6000.c @@ -336,7 +336,7 @@ static const struct iwl_bt_params iwl6000_bt_params = { #define IWL_DEVICE_6005 \ .fw_name_pre = IWL6005_FW_PRE, \ .ucode_api_max = IWL6000G2_UCODE_API_MAX, \ - .ucode_api_ok = IWL6000G2B_UCODE_API_OK, \ + .ucode_api_ok = IWL6000G2_UCODE_API_OK, \ .ucode_api_min = IWL6000G2_UCODE_API_MIN, \ .max_inst_size = IWL60_RTC_INST_SIZE, \ .max_data_size = IWL60_RTC_DATA_SIZE, \ @@ -390,7 +390,7 @@ const struct iwl_cfg iwl6005_2agn_mow2_cfg = { #define IWL_DEVICE_6030 \ .fw_name_pre = IWL6030_FW_PRE, \ .ucode_api_max = IWL6000G2_UCODE_API_MAX, \ - .ucode_api_ok = IWL6000G2_UCODE_API_OK, \ + .ucode_api_ok = IWL6000G2B_UCODE_API_OK, \ .ucode_api_min = IWL6000G2_UCODE_API_MIN, \ .max_inst_size = IWL60_RTC_INST_SIZE, \ .max_data_size = IWL60_RTC_DATA_SIZE, \ -- cgit v0.10.2 From dbdedbdf4fbff3d4962a0786f37aa86dfdc48a7e Mon Sep 17 00:00:00 2001 From: Seth Forshee Date: Wed, 25 Apr 2012 17:28:00 -0500 Subject: b43: only reload config after successful initialization Commit 2a19032 (b43: reload phy and bss settings after core restarts) introduced an unconditional call to b43_op_config() at the end of b43_op_start(). When firmware fails to load this can wedge the system. There's no need to reload the configuration after a failed initialization anyway, so only make the call if initialization was successful. BugLink: http://bugs.launchpad.net/bugs/950295 Cc: Felix Fietkau Cc: Signed-off-by: Seth Forshee Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index c79e663..e4d6dc2 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -4827,8 +4827,14 @@ static int b43_op_start(struct ieee80211_hw *hw) out_mutex_unlock: mutex_unlock(&wl->mutex); - /* reload configuration */ - b43_op_config(hw, ~0); + /* + * Configuration may have been overwritten during initialization. + * Reload the configuration, but only if initialization was + * successful. Reloading the configuration after a failed init + * may hang the system. + */ + if (!err) + b43_op_config(hw, ~0); return err; } -- cgit v0.10.2 From 328c32f0f85467af5a6c4c3289e168d9ad2555af Mon Sep 17 00:00:00 2001 From: Grazvydas Ignotas Date: Thu, 26 Apr 2012 23:07:43 +0300 Subject: wl1251: fix crash on remove due to premature kfree Currently SDIO glue frees it's own structure before calling wl1251_free_hw(), which in turn calls ieee80211_unregister_hw(). The later call may result in a need to communicate with the chip to stop it (as it happens now if the interface is still up before rmmod), which means calls are made back to the glue, resulting in freed memory access. Fix this by freeing glue data last. Cc: stable@vger.kernel.org # v2.6.37+ Signed-off-by: Grazvydas Ignotas Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/wl1251/sdio.c b/drivers/net/wireless/wl1251/sdio.c index f786942..1b851f6 100644 --- a/drivers/net/wireless/wl1251/sdio.c +++ b/drivers/net/wireless/wl1251/sdio.c @@ -315,8 +315,8 @@ static void __devexit wl1251_sdio_remove(struct sdio_func *func) if (wl->irq) free_irq(wl->irq, wl); - kfree(wl_sdio); wl1251_free_hw(wl); + kfree(wl_sdio); sdio_claim_host(func); sdio_release_irq(func); -- cgit v0.10.2 From 4c1bcdb5a3354b250b82a67549f57ac27a3bb85f Mon Sep 17 00:00:00 2001 From: Grazvydas Ignotas Date: Thu, 26 Apr 2012 23:07:44 +0300 Subject: wl1251: fix crash on remove due to leftover work item This driver currently leaves elp_work behind when stopping, which occasionally results in data corruption because work function ends up accessing freed memory, typical symptoms of this are various worker_thread crashes. Fix it by cancelling elp_work. Cc: stable@vger.kernel.org # v2.6.37+ Signed-off-by: Grazvydas Ignotas Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/wl1251/main.c b/drivers/net/wireless/wl1251/main.c index 41302c7..d1afb8e 100644 --- a/drivers/net/wireless/wl1251/main.c +++ b/drivers/net/wireless/wl1251/main.c @@ -479,6 +479,7 @@ static void wl1251_op_stop(struct ieee80211_hw *hw) cancel_work_sync(&wl->irq_work); cancel_work_sync(&wl->tx_work); cancel_work_sync(&wl->filter_work); + cancel_delayed_work_sync(&wl->elp_work); mutex_lock(&wl->mutex); -- cgit v0.10.2 From 7eb7ce4d2e8991aff4ecb71a81949a907ca755ac Mon Sep 17 00:00:00 2001 From: David Vrabel Date: Thu, 26 Apr 2012 19:44:06 +0100 Subject: xen: correctly check for pending events when restoring irq flags In xen_restore_fl_direct(), xen_force_evtchn_callback() was being called even if no events were pending. This resulted in (depending on workload) about a 100 times as many xen_version hypercalls as necessary. Fix this by correcting the sense of the conditional jump. This seems to give a significant performance benefit for some workloads. There is some subtle tricksy "..since the check here is trying to check both pending and masked in a single cmpw, but I think this is correct. It will call check_events now only when the combined mask+pending word is 0x0001 (aka unmasked, pending)." (Ian) CC: stable@kernel.org Acked-by: Ian Campbell Signed-off-by: David Vrabel Signed-off-by: Konrad Rzeszutek Wilk diff --git a/arch/x86/xen/xen-asm.S b/arch/x86/xen/xen-asm.S index 79d7362..3e45aa0 100644 --- a/arch/x86/xen/xen-asm.S +++ b/arch/x86/xen/xen-asm.S @@ -96,7 +96,7 @@ ENTRY(xen_restore_fl_direct) /* check for unmasked and pending */ cmpw $0x0001, PER_CPU_VAR(xen_vcpu_info) + XEN_vcpu_info_pending - jz 1f + jnz 1f 2: call check_events 1: ENDPATCH(xen_restore_fl_direct) -- cgit v0.10.2 From cde2e9a651b76d8db36ae94cd0febc82b637e5dd Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Fri, 27 Apr 2012 10:11:48 +0000 Subject: drop_monitor: fix sleeping in invalid context warning Eric Dumazet pointed out this warning in the drop_monitor protocol to me: [ 38.352571] BUG: sleeping function called from invalid context at kernel/mutex.c:85 [ 38.352576] in_atomic(): 1, irqs_disabled(): 0, pid: 4415, name: dropwatch [ 38.352580] Pid: 4415, comm: dropwatch Not tainted 3.4.0-rc2+ #71 [ 38.352582] Call Trace: [ 38.352592] [] ? trace_napi_poll_hit+0xd0/0xd0 [ 38.352599] [] __might_sleep+0xca/0xf0 [ 38.352606] [] mutex_lock+0x26/0x50 [ 38.352610] [] ? trace_napi_poll_hit+0xd0/0xd0 [ 38.352616] [] tracepoint_probe_register+0x29/0x90 [ 38.352621] [] set_all_monitor_traces+0x105/0x170 [ 38.352625] [] net_dm_cmd_trace+0x2a/0x40 [ 38.352630] [] genl_rcv_msg+0x21a/0x2b0 [ 38.352636] [] ? zone_statistics+0x99/0xc0 [ 38.352640] [] ? genl_rcv+0x30/0x30 [ 38.352645] [] netlink_rcv_skb+0xa9/0xd0 [ 38.352649] [] genl_rcv+0x20/0x30 [ 38.352653] [] netlink_unicast+0x1ae/0x1f0 [ 38.352658] [] netlink_sendmsg+0x2b6/0x310 [ 38.352663] [] sock_sendmsg+0x10f/0x130 [ 38.352668] [] ? move_addr_to_kernel+0x60/0xb0 [ 38.352673] [] ? verify_iovec+0x64/0xe0 [ 38.352677] [] __sys_sendmsg+0x386/0x390 [ 38.352682] [] ? handle_mm_fault+0x139/0x210 [ 38.352687] [] ? do_page_fault+0x1ec/0x4f0 [ 38.352693] [] ? set_next_entity+0x9d/0xb0 [ 38.352699] [] ? tty_ldisc_deref+0x9/0x10 [ 38.352703] [] ? pick_next_task_fair+0x63/0x140 [ 38.352708] [] sys_sendmsg+0x44/0x80 [ 38.352713] [] system_call_fastpath+0x16/0x1b It stems from holding a spinlock (trace_state_lock) while attempting to register or unregister tracepoint hooks, making in_atomic() true in this context, leading to the warning when the tracepoint calls might_sleep() while its taking a mutex. Since we only use the trace_state_lock to prevent trace protocol state races, as well as hardware stat list updates on an rcu write side, we can just convert the spinlock to a mutex to avoid this problem. Signed-off-by: Neil Horman Reported-by: Eric Dumazet CC: David Miller Acked-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c index 5c3c81a..a221a5b 100644 --- a/net/core/drop_monitor.c +++ b/net/core/drop_monitor.c @@ -42,7 +42,7 @@ static void send_dm_alert(struct work_struct *unused); * netlink alerts */ static int trace_state = TRACE_OFF; -static DEFINE_SPINLOCK(trace_state_lock); +static DEFINE_MUTEX(trace_state_mutex); struct per_cpu_dm_data { struct work_struct dm_alert_work; @@ -214,7 +214,7 @@ static int set_all_monitor_traces(int state) struct dm_hw_stat_delta *new_stat = NULL; struct dm_hw_stat_delta *temp; - spin_lock(&trace_state_lock); + mutex_lock(&trace_state_mutex); if (state == trace_state) { rc = -EAGAIN; @@ -253,7 +253,7 @@ static int set_all_monitor_traces(int state) rc = -EINPROGRESS; out_unlock: - spin_unlock(&trace_state_lock); + mutex_unlock(&trace_state_mutex); return rc; } @@ -296,12 +296,12 @@ static int dropmon_net_event(struct notifier_block *ev_block, new_stat->dev = dev; new_stat->last_rx = jiffies; - spin_lock(&trace_state_lock); + mutex_lock(&trace_state_mutex); list_add_rcu(&new_stat->list, &hw_stats_list); - spin_unlock(&trace_state_lock); + mutex_unlock(&trace_state_mutex); break; case NETDEV_UNREGISTER: - spin_lock(&trace_state_lock); + mutex_lock(&trace_state_mutex); list_for_each_entry_safe(new_stat, tmp, &hw_stats_list, list) { if (new_stat->dev == dev) { new_stat->dev = NULL; @@ -312,7 +312,7 @@ static int dropmon_net_event(struct notifier_block *ev_block, } } } - spin_unlock(&trace_state_lock); + mutex_unlock(&trace_state_mutex); break; } out: -- cgit v0.10.2 From 3885ca785a3618593226687ced84f3f336dc3860 Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Fri, 27 Apr 2012 10:11:49 +0000 Subject: drop_monitor: Make updating data->skb smp safe Eric Dumazet pointed out to me that the drop_monitor protocol has some holes in its smp protections. Specifically, its possible to replace data->skb while its being written. This patch corrects that by making data->skb an rcu protected variable. That will prevent it from being overwritten while a tracepoint is modifying it. Signed-off-by: Neil Horman Reported-by: Eric Dumazet CC: David Miller Acked-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c index a221a5b..7592943 100644 --- a/net/core/drop_monitor.c +++ b/net/core/drop_monitor.c @@ -46,7 +46,7 @@ static DEFINE_MUTEX(trace_state_mutex); struct per_cpu_dm_data { struct work_struct dm_alert_work; - struct sk_buff *skb; + struct sk_buff __rcu *skb; atomic_t dm_hit_count; struct timer_list send_timer; }; @@ -73,35 +73,58 @@ static int dm_hit_limit = 64; static int dm_delay = 1; static unsigned long dm_hw_check_delta = 2*HZ; static LIST_HEAD(hw_stats_list); +static int initialized = 0; static void reset_per_cpu_data(struct per_cpu_dm_data *data) { size_t al; struct net_dm_alert_msg *msg; struct nlattr *nla; + struct sk_buff *skb; + struct sk_buff *oskb = rcu_dereference_protected(data->skb, 1); al = sizeof(struct net_dm_alert_msg); al += dm_hit_limit * sizeof(struct net_dm_drop_point); al += sizeof(struct nlattr); - data->skb = genlmsg_new(al, GFP_KERNEL); - genlmsg_put(data->skb, 0, 0, &net_drop_monitor_family, - 0, NET_DM_CMD_ALERT); - nla = nla_reserve(data->skb, NLA_UNSPEC, sizeof(struct net_dm_alert_msg)); - msg = nla_data(nla); - memset(msg, 0, al); - atomic_set(&data->dm_hit_count, dm_hit_limit); + skb = genlmsg_new(al, GFP_KERNEL); + + if (skb) { + genlmsg_put(skb, 0, 0, &net_drop_monitor_family, + 0, NET_DM_CMD_ALERT); + nla = nla_reserve(skb, NLA_UNSPEC, + sizeof(struct net_dm_alert_msg)); + msg = nla_data(nla); + memset(msg, 0, al); + } else if (initialized) + schedule_work_on(smp_processor_id(), &data->dm_alert_work); + + /* + * Don't need to lock this, since we are guaranteed to only + * run this on a single cpu at a time. + * Note also that we only update data->skb if the old and new skb + * pointers don't match. This ensures that we don't continually call + * synchornize_rcu if we repeatedly fail to alloc a new netlink message. + */ + if (skb != oskb) { + rcu_assign_pointer(data->skb, skb); + + synchronize_rcu(); + + atomic_set(&data->dm_hit_count, dm_hit_limit); + } + } static void send_dm_alert(struct work_struct *unused) { struct sk_buff *skb; - struct per_cpu_dm_data *data = &__get_cpu_var(dm_cpu_data); + struct per_cpu_dm_data *data = &get_cpu_var(dm_cpu_data); /* * Grab the skb we're about to send */ - skb = data->skb; + skb = rcu_dereference_protected(data->skb, 1); /* * Replace it with a new one @@ -111,8 +134,10 @@ static void send_dm_alert(struct work_struct *unused) /* * Ship it! */ - genlmsg_multicast(skb, 0, NET_DM_GRP_ALERT, GFP_KERNEL); + if (skb) + genlmsg_multicast(skb, 0, NET_DM_GRP_ALERT, GFP_KERNEL); + put_cpu_var(dm_cpu_data); } /* @@ -123,9 +148,11 @@ static void send_dm_alert(struct work_struct *unused) */ static void sched_send_work(unsigned long unused) { - struct per_cpu_dm_data *data = &__get_cpu_var(dm_cpu_data); + struct per_cpu_dm_data *data = &get_cpu_var(dm_cpu_data); + + schedule_work_on(smp_processor_id(), &data->dm_alert_work); - schedule_work(&data->dm_alert_work); + put_cpu_var(dm_cpu_data); } static void trace_drop_common(struct sk_buff *skb, void *location) @@ -134,9 +161,16 @@ static void trace_drop_common(struct sk_buff *skb, void *location) struct nlmsghdr *nlh; struct nlattr *nla; int i; - struct per_cpu_dm_data *data = &__get_cpu_var(dm_cpu_data); + struct sk_buff *dskb; + struct per_cpu_dm_data *data = &get_cpu_var(dm_cpu_data); + rcu_read_lock(); + dskb = rcu_dereference(data->skb); + + if (!dskb) + goto out; + if (!atomic_add_unless(&data->dm_hit_count, -1, 0)) { /* * we're already at zero, discard this hit @@ -144,7 +178,7 @@ static void trace_drop_common(struct sk_buff *skb, void *location) goto out; } - nlh = (struct nlmsghdr *)data->skb->data; + nlh = (struct nlmsghdr *)dskb->data; nla = genlmsg_data(nlmsg_data(nlh)); msg = nla_data(nla); for (i = 0; i < msg->entries; i++) { @@ -158,7 +192,7 @@ static void trace_drop_common(struct sk_buff *skb, void *location) /* * We need to create a new entry */ - __nla_reserve_nohdr(data->skb, sizeof(struct net_dm_drop_point)); + __nla_reserve_nohdr(dskb, sizeof(struct net_dm_drop_point)); nla->nla_len += NLA_ALIGN(sizeof(struct net_dm_drop_point)); memcpy(msg->points[msg->entries].pc, &location, sizeof(void *)); msg->points[msg->entries].count = 1; @@ -170,6 +204,8 @@ static void trace_drop_common(struct sk_buff *skb, void *location) } out: + rcu_read_unlock(); + put_cpu_var(dm_cpu_data); return; } @@ -375,6 +411,8 @@ static int __init init_net_drop_monitor(void) data->send_timer.function = sched_send_work; } + initialized = 1; + goto out; out_unreg: -- cgit v0.10.2 From 700698e7c303f5095107c62a81872c2c3dad1702 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 27 Apr 2012 17:18:59 -0400 Subject: drm/radeon/kms: need to set up ss on DP bridges as well Makes Nutmeg DP to VGA bridges work for me. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=42490 Noticed by Jerome Glisse (after weeks of debugging). Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index c5c31e0..af1054f 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -958,8 +958,8 @@ static void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode break; } - if (radeon_encoder->active_device & - (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) { + if ((radeon_encoder->active_device & (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) || + (radeon_encoder_get_dp_bridge_encoder_id(encoder) != ENCODER_OBJECT_ID_NONE)) { struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; struct drm_connector *connector = radeon_get_connector_for_encoder(encoder); -- cgit v0.10.2 From 3a69ddd6f872180b6f61fda87152b37202118fbc Mon Sep 17 00:00:00 2001 From: Kenneth Graunke Date: Fri, 27 Apr 2012 12:44:41 -0700 Subject: drm/i915: Set the Stencil Cache eviction policy to non-LRA mode. Clearing bit 5 of CACHE_MODE_0 is necessary to prevent GPU hangs in OpenGL programs such as Google MapsGL, Google Earth, and gzdoom when using separate stencil buffers. Without it, the GPU tries to use the LRA eviction policy, which isn't supported. This was supposed to be off by default, but seems to be on for many machines. This cannot be done in gen6_init_clock_gating with most of the other workaround bits; the render ring needs to exist. Otherwise, the register write gets dropped on the floor (one printk will show it changed, but a second printk immediately following shows the value reverts to the old one). Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=47535 Cc: stable@vger.kernel.org Cc: Rob Castle Cc: Eric Appleman Cc: aaron667@gmx.net Cc: Keith Packard Signed-off-by: Kenneth Graunke Reviewed-by: Daniel Vetter Acked-by: Daniel Vetter Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index b4bb1ef..9d24d65 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -568,6 +568,7 @@ #define CM0_MASK_SHIFT 16 #define CM0_IZ_OPT_DISABLE (1<<6) #define CM0_ZR_OPT_DISABLE (1<<5) +#define CM0_STC_EVICT_DISABLE_LRA_SNB (1<<5) #define CM0_DEPTH_EVICT_DISABLE (1<<4) #define CM0_COLOR_EVICT_DISABLE (1<<3) #define CM0_DEPTH_WRITE_DISABLE (1<<1) diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index f75806e..80fce51 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -401,6 +401,14 @@ static int init_render_ring(struct intel_ring_buffer *ring) if (INTEL_INFO(dev)->gen >= 6) { I915_WRITE(INSTPM, INSTPM_FORCE_ORDERING << 16 | INSTPM_FORCE_ORDERING); + + /* From the Sandybridge PRM, volume 1 part 3, page 24: + * "If this bit is set, STCunit will have LRA as replacement + * policy. [...] This bit must be reset. LRA replacement + * policy is not supported." + */ + I915_WRITE(CACHE_MODE_0, + CM0_STC_EVICT_DISABLE_LRA_SNB << CM0_MASK_SHIFT); } return ret; -- cgit v0.10.2 From 14904927fcef6bb881fd995b478a0d2e700c1818 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Fri, 27 Apr 2012 01:40:10 +0100 Subject: ARM: 7401/1: mm: Fix section mismatches WARNING: vmlinux.o(.text+0x111b8): Section mismatch in reference from the function arm_memory_present() to the function .init.text:memory_present() The function arm_memory_present() references the function __init memory_present(). This is often because arm_memory_present lacks a __init annotation or the annotation of memory_present is wrong. WARNING: arch/arm/mm/built-in.o(.text+0x1edc): Section mismatch in reference from the function alloc_init_pud() to the function .init.text:alloc_init_section() The function alloc_init_pud() references the function __init alloc_init_section(). This is often because alloc_init_pud lacks a __init annotation or the annotation of alloc_init_section is wrong. Signed-off-by: Stephen Boyd Signed-off-by: Russell King diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 595079f..8f5813b 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -293,11 +293,11 @@ EXPORT_SYMBOL(pfn_valid); #endif #ifndef CONFIG_SPARSEMEM -static void arm_memory_present(void) +static void __init arm_memory_present(void) { } #else -static void arm_memory_present(void) +static void __init arm_memory_present(void) { struct memblock_region *reg; diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index b86f893..2c7cf2f 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -618,8 +618,8 @@ static void __init alloc_init_section(pud_t *pud, unsigned long addr, } } -static void alloc_init_pud(pgd_t *pgd, unsigned long addr, unsigned long end, - unsigned long phys, const struct mem_type *type) +static void __init alloc_init_pud(pgd_t *pgd, unsigned long addr, + unsigned long end, unsigned long phys, const struct mem_type *type) { pud_t *pud = pud_offset(pgd, addr); unsigned long next; -- cgit v0.10.2 From 6a1c53124aa161eb624ce7b1e40ade728186d34c Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 27 Apr 2012 12:45:07 +0100 Subject: ARM: 7403/1: tls: remove covert channel via TPIDRURW TPIDRURW is a user read/write register forming part of the group of thread registers in more recent versions of the ARM architecture (~v6+). Currently, the kernel does not touch this register, which allows tasks to communicate covertly by reading and writing to the register without context-switching affecting its contents. This patch clears TPIDRURW when TPIDRURO is updated via the set_tls macro, which is called directly from __switch_to. Since the current behaviour makes the register useless to userspace as far as thread pointers are concerned, simply clearing the register (rather than saving and restoring it) will not cause any problems to userspace. Cc: stable@vger.kernel.org Signed-off-by: Will Deacon Signed-off-by: Russell King diff --git a/arch/arm/include/asm/tls.h b/arch/arm/include/asm/tls.h index 60843eb..73409e6 100644 --- a/arch/arm/include/asm/tls.h +++ b/arch/arm/include/asm/tls.h @@ -7,6 +7,8 @@ .macro set_tls_v6k, tp, tmp1, tmp2 mcr p15, 0, \tp, c13, c0, 3 @ set TLS register + mov \tmp1, #0 + mcr p15, 0, \tmp1, c13, c0, 2 @ clear user r/w TLS register .endm .macro set_tls_v6, tp, tmp1, tmp2 @@ -15,6 +17,8 @@ mov \tmp2, #0xffff0fff tst \tmp1, #HWCAP_TLS @ hardware TLS available? mcrne p15, 0, \tp, c13, c0, 3 @ yes, set TLS register + movne \tmp1, #0 + mcrne p15, 0, \tmp1, c13, c0, 2 @ clear user r/w TLS register streq \tp, [\tmp2, #-15] @ set TLS value at 0xffff0ff0 .endm -- cgit v0.10.2 From 6fa99b7f80b4a7ed2cf616eae393bb6d9d51ba8f Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 27 Apr 2012 12:51:43 +0100 Subject: ARM: 7405/1: kexec: call platform_cpu_kill on the killer rather than the victim When performing a kexec on an SMP system, the secondary cores are stopped by calling machine_shutdown(), which in turn issues IPIs to offline the other CPUs. Unfortunately, this isn't enough to reboot the cores into a new kernel (since they are just executing a cpu_relax loop somewhere in memory) so we make use of platform_cpu_kill, part of the CPU hotplug implementation, to place the cores somewhere safe. This function expects to be called on the killing CPU for each core that it takes out. This patch moves the platform_cpu_kill callback out of the IPI handler and into smp_send_stop, therefore ensuring that it executes on the killing CPU rather than on the victim, matching what the hotplug code requires. Cc: stable@vger.kernel.org Reported-by: Russell King Signed-off-by: Will Deacon Signed-off-by: Russell King diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index addbbe8..f6a4d32 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -510,10 +510,6 @@ static void ipi_cpu_stop(unsigned int cpu) local_fiq_disable(); local_irq_disable(); -#ifdef CONFIG_HOTPLUG_CPU - platform_cpu_kill(cpu); -#endif - while (1) cpu_relax(); } @@ -576,17 +572,25 @@ void smp_send_reschedule(int cpu) smp_cross_call(cpumask_of(cpu), IPI_RESCHEDULE); } +#ifdef CONFIG_HOTPLUG_CPU +static void smp_kill_cpus(cpumask_t *mask) +{ + unsigned int cpu; + for_each_cpu(cpu, mask) + platform_cpu_kill(cpu); +} +#else +static void smp_kill_cpus(cpumask_t *mask) { } +#endif + void smp_send_stop(void) { unsigned long timeout; + struct cpumask mask; - if (num_online_cpus() > 1) { - struct cpumask mask; - cpumask_copy(&mask, cpu_online_mask); - cpumask_clear_cpu(smp_processor_id(), &mask); - - smp_cross_call(&mask, IPI_CPU_STOP); - } + cpumask_copy(&mask, cpu_online_mask); + cpumask_clear_cpu(smp_processor_id(), &mask); + smp_cross_call(&mask, IPI_CPU_STOP); /* Wait up to one second for other CPUs to stop */ timeout = USEC_PER_SEC; @@ -595,6 +599,8 @@ void smp_send_stop(void) if (num_online_cpus() > 1) pr_warning("SMP: failed to stop secondary CPUs\n"); + + smp_kill_cpus(&mask); } /* -- cgit v0.10.2 From 5e7371ded05adfcfcee44a8bc070bfc37979b8f2 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 27 Apr 2012 12:56:24 +0100 Subject: ARM: 7406/1: hotplug: copy the affinity mask when forcefully migrating IRQs When a CPU is hotplugged off, we migrate any IRQs currently affine to it away and onto another online CPU by calling the irq_set_affinity function of the relevant interrupt controller chip. This function returns either IRQ_SET_MASK_OK or IRQ_SET_MASK_OK_NOCOPY, to indicate whether irq_data.affinity was updated. If we are forcefully migrating an interrupt (because the affinity mask no longer identifies any online CPUs) then we should update the IRQ affinity mask to reflect the new CPU set. Failure to do so can potentially leave /proc/irq/n/smp_affinity identifying only offline CPUs, which may confuse userspace IRQ balancing daemons. This patch updates migrate_one_irq to copy the affinity mask when the interrupt chip returns IRQ_SET_MASK_OK after forcefully changing the affinity of an interrupt. Cc: stable@vger.kernel.org Reported-by: Leif Lindholm Signed-off-by: Will Deacon Signed-off-by: Russell King diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c index 71ccdbf..8349d4e 100644 --- a/arch/arm/kernel/irq.c +++ b/arch/arm/kernel/irq.c @@ -155,10 +155,10 @@ static bool migrate_one_irq(struct irq_desc *desc) } c = irq_data_get_irq_chip(d); - if (c->irq_set_affinity) - c->irq_set_affinity(d, affinity, true); - else + if (!c->irq_set_affinity) pr_debug("IRQ%u: unable to set affinity\n", d->irq); + else if (c->irq_set_affinity(d, affinity, true) == IRQ_SET_MASK_OK && ret) + cpumask_copy(d->affinity, affinity); return ret; } -- cgit v0.10.2 From fcbf94b9dedd2ce08e798a99aafc94fec8668161 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 28 Apr 2012 08:29:56 -0700 Subject: Revert "autofs: work around unhappy compat problem on x86-64" This reverts commit a32744d4abae24572eff7269bc17895c41bd0085. While that commit was technically the right thing to do, and made the x86-64 compat mode work identically to native 32-bit mode (and thus fixing the problem with a 32-bit systemd install on a 64-bit kernel), it turns out that the automount binaries had workarounds for this compat problem. Now, the workarounds are disgusting: doing an "uname()" to find out the architecture of the kernel, and then comparing it for the 64-bit cases and fixing up the size of the read() in automount for those. And they were confused: it's not actually a generic 64-bit issue at all, it's very much tied to just x86-64, which has different alignment for an 'u64' in 64-bit mode than in 32-bit mode. But the end result is that fixing the compat layer actually breaks the case of a 32-bit automount on a x86-64 kernel. There are various approaches to fix this (including just doing a "strcmp()" on current->comm and comparing it to "automount"), but I think that I will do the one that teaches pipes about a special "packet mode", which will allow user space to not have to care too deeply about the padding at the end of the autofs packet. That change will make the compat workaround unnecessary, so let's revert it first, and get automount working again in compat mode. The packetized pipes will then fix autofs for systemd. Reported-and-requested-by: Michael Tokarev Cc: Ian Kent Cc: stable@kernel.org # for 3.3 Signed-off-by: Linus Torvalds diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h index eb1cc92..d8d8e7b 100644 --- a/fs/autofs4/autofs_i.h +++ b/fs/autofs4/autofs_i.h @@ -110,7 +110,6 @@ struct autofs_sb_info { int sub_version; int min_proto; int max_proto; - int compat_daemon; unsigned long exp_timeout; unsigned int type; int reghost_enabled; diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c index 9dacb85..3dfd615 100644 --- a/fs/autofs4/dev-ioctl.c +++ b/fs/autofs4/dev-ioctl.c @@ -385,7 +385,6 @@ static int autofs_dev_ioctl_setpipefd(struct file *fp, sbi->pipefd = pipefd; sbi->pipe = pipe; sbi->catatonic = 0; - sbi->compat_daemon = is_compat_task(); } out: mutex_unlock(&sbi->wq_mutex); diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c index d8dc002..14c7bc0 100644 --- a/fs/autofs4/inode.c +++ b/fs/autofs4/inode.c @@ -19,7 +19,6 @@ #include #include #include -#include #include "autofs_i.h" #include @@ -225,7 +224,6 @@ int autofs4_fill_super(struct super_block *s, void *data, int silent) set_autofs_type_indirect(&sbi->type); sbi->min_proto = 0; sbi->max_proto = 0; - sbi->compat_daemon = is_compat_task(); mutex_init(&sbi->wq_mutex); mutex_init(&sbi->pipe_mutex); spin_lock_init(&sbi->fs_lock); diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c index 9c098db..da8876d 100644 --- a/fs/autofs4/waitq.c +++ b/fs/autofs4/waitq.c @@ -91,24 +91,7 @@ static int autofs4_write(struct autofs_sb_info *sbi, return (bytes > 0); } - -/* - * The autofs_v5 packet was misdesigned. - * - * The packets are identical on x86-32 and x86-64, but have different - * alignment. Which means that 'sizeof()' will give different results. - * Fix it up for the case of running 32-bit user mode on a 64-bit kernel. - */ -static noinline size_t autofs_v5_packet_size(struct autofs_sb_info *sbi) -{ - size_t pktsz = sizeof(struct autofs_v5_packet); -#if defined(CONFIG_X86_64) && defined(CONFIG_COMPAT) - if (sbi->compat_daemon > 0) - pktsz -= 4; -#endif - return pktsz; -} - + static void autofs4_notify_daemon(struct autofs_sb_info *sbi, struct autofs_wait_queue *wq, int type) @@ -172,7 +155,8 @@ static void autofs4_notify_daemon(struct autofs_sb_info *sbi, { struct autofs_v5_packet *packet = &pkt.v5_pkt.v5_packet; - pktsz = autofs_v5_packet_size(sbi); + pktsz = sizeof(*packet); + packet->wait_queue_token = wq->wait_queue_token; packet->len = wq->name.len; memcpy(packet->name, wq->name.name, wq->name.len); -- cgit v0.10.2 From 71dfc5fa5160bb73752f0731539404569a77faca Mon Sep 17 00:00:00 2001 From: Stanislav Kinsbursky Date: Sat, 28 Apr 2012 19:32:21 +0400 Subject: NFS: get module in idmap PipeFS notifier callback This is bug fix. Notifier callback is called from SUNRPC module. So before dereferencing NFS module we have to make sure, that it's alive. Signed-off-by: Stanislav Kinsbursky Signed-off-by: Trond Myklebust diff --git a/fs/nfs/idmap.c b/fs/nfs/idmap.c index b7f348b..ba3019f 100644 --- a/fs/nfs/idmap.c +++ b/fs/nfs/idmap.c @@ -554,12 +554,16 @@ static int rpc_pipefs_event(struct notifier_block *nb, unsigned long event, struct nfs_client *clp; int error = 0; + if (!try_module_get(THIS_MODULE)) + return 0; + while ((clp = nfs_get_client_for_event(sb->s_fs_info, event))) { error = __rpc_pipefs_event(clp, event, sb); nfs_put_client(clp); if (error) break; } + module_put(THIS_MODULE); return error; } -- cgit v0.10.2 From 9883035ae7edef3ec62ad215611cb8e17d6a1a5d Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 29 Apr 2012 13:12:42 -0700 Subject: pipes: add a "packetized pipe" mode for writing The actual internal pipe implementation is already really about individual packets (called "pipe buffers"), and this simply exposes that as a special packetized mode. When we are in the packetized mode (marked by O_DIRECT as suggested by Alan Cox), a write() on a pipe will not merge the new data with previous writes, so each write will get a pipe buffer of its own. The pipe buffer is then marked with the PIPE_BUF_FLAG_PACKET flag, which in turn will tell the reader side to break the read at that boundary (and throw away any partial packet contents that do not fit in the read buffer). End result: as long as you do writes less than PIPE_BUF in size (so that the pipe doesn't have to split them up), you can now treat the pipe as a packet interface, where each read() system call will read one packet at a time. You can just use a sufficiently big read buffer (PIPE_BUF is sufficient, since bigger than that doesn't guarantee atomicity anyway), and the return value of the read() will naturally give you the size of the packet. NOTE! We do not support zero-sized packets, and zero-sized reads and writes to a pipe continue to be no-ops. Also note that big packets will currently be split at write time, but that the size at which that happens is not really specified (except that it's bigger than PIPE_BUF). Currently that limit is the system page size, but we might want to explicitly support bigger packets some day. The main user for this is going to be the autofs packet interface, allowing us to stop having to care so deeply about exact packet sizes (which have had bugs with 32/64-bit compatibility modes). But user space can create packetized pipes with "pipe2(fd, O_DIRECT)", which will fail with an EINVAL on kernels that do not support this interface. Tested-by: Michael Tokarev Cc: Alan Cox Cc: David Miller Cc: Ian Kent Cc: Thomas Meyer Cc: stable@kernel.org # needed for systemd/autofs interaction fix Signed-off-by: Linus Torvalds diff --git a/fs/pipe.c b/fs/pipe.c index 25feaa3..fec5e4a 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -346,6 +346,16 @@ static const struct pipe_buf_operations anon_pipe_buf_ops = { .get = generic_pipe_buf_get, }; +static const struct pipe_buf_operations packet_pipe_buf_ops = { + .can_merge = 0, + .map = generic_pipe_buf_map, + .unmap = generic_pipe_buf_unmap, + .confirm = generic_pipe_buf_confirm, + .release = anon_pipe_buf_release, + .steal = generic_pipe_buf_steal, + .get = generic_pipe_buf_get, +}; + static ssize_t pipe_read(struct kiocb *iocb, const struct iovec *_iov, unsigned long nr_segs, loff_t pos) @@ -407,6 +417,13 @@ redo: ret += chars; buf->offset += chars; buf->len -= chars; + + /* Was it a packet buffer? Clean up and exit */ + if (buf->flags & PIPE_BUF_FLAG_PACKET) { + total_len = chars; + buf->len = 0; + } + if (!buf->len) { buf->ops = NULL; ops->release(pipe, buf); @@ -459,6 +476,11 @@ redo: return ret; } +static inline int is_packetized(struct file *file) +{ + return (file->f_flags & O_DIRECT) != 0; +} + static ssize_t pipe_write(struct kiocb *iocb, const struct iovec *_iov, unsigned long nr_segs, loff_t ppos) @@ -593,6 +615,11 @@ redo2: buf->ops = &anon_pipe_buf_ops; buf->offset = 0; buf->len = chars; + buf->flags = 0; + if (is_packetized(filp)) { + buf->ops = &packet_pipe_buf_ops; + buf->flags = PIPE_BUF_FLAG_PACKET; + } pipe->nrbufs = ++bufs; pipe->tmp_page = NULL; @@ -1013,7 +1040,7 @@ struct file *create_write_pipe(int flags) goto err_dentry; f->f_mapping = inode->i_mapping; - f->f_flags = O_WRONLY | (flags & O_NONBLOCK); + f->f_flags = O_WRONLY | (flags & (O_NONBLOCK | O_DIRECT)); f->f_version = 0; return f; @@ -1057,7 +1084,7 @@ int do_pipe_flags(int *fd, int flags) int error; int fdw, fdr; - if (flags & ~(O_CLOEXEC | O_NONBLOCK)) + if (flags & ~(O_CLOEXEC | O_NONBLOCK | O_DIRECT)) return -EINVAL; fw = create_write_pipe(flags); diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h index 6d626ff..e1ac1ce 100644 --- a/include/linux/pipe_fs_i.h +++ b/include/linux/pipe_fs_i.h @@ -6,6 +6,7 @@ #define PIPE_BUF_FLAG_LRU 0x01 /* page is on the LRU */ #define PIPE_BUF_FLAG_ATOMIC 0x02 /* was atomically mapped */ #define PIPE_BUF_FLAG_GIFT 0x04 /* page is a gift */ +#define PIPE_BUF_FLAG_PACKET 0x08 /* read() as a packet */ /** * struct pipe_buffer - a linux kernel pipe buffer -- cgit v0.10.2 From 26e0f90fded422f309deb6169dfbccb204435698 Mon Sep 17 00:00:00 2001 From: Marcos Paulo de Souza Date: Sun, 29 Apr 2012 22:29:30 +0200 Subject: PM / Freezer / Docs: Update documentation about freezing of tasks The file Documentation/power/freezing-of-tasks.txt was still referencing the TIF_FREEZE flag, that was removed by the commit d88e4cb67197d007fb778d62fe17360e970d5bfa(freezer: remove now unused TIF_FREEZE). This patch removes all the references of TIF_FREEZE that were left behind. Signed-off-by: Marcos Paulo de Souza Signed-off-by: Srivatsa S. Bhat Signed-off-by: Rafael J. Wysocki diff --git a/Documentation/power/freezing-of-tasks.txt b/Documentation/power/freezing-of-tasks.txt index ec715cd..6ec291e 100644 --- a/Documentation/power/freezing-of-tasks.txt +++ b/Documentation/power/freezing-of-tasks.txt @@ -9,7 +9,7 @@ architectures). II. How does it work? -There are four per-task flags used for that, PF_NOFREEZE, PF_FROZEN, TIF_FREEZE +There are three per-task flags used for that, PF_NOFREEZE, PF_FROZEN and PF_FREEZER_SKIP (the last one is auxiliary). The tasks that have PF_NOFREEZE unset (all user space processes and some kernel threads) are regarded as 'freezable' and treated in a special way before the system enters a @@ -17,30 +17,31 @@ suspend state as well as before a hibernation image is created (in what follows we only consider hibernation, but the description also applies to suspend). Namely, as the first step of the hibernation procedure the function -freeze_processes() (defined in kernel/power/process.c) is called. It executes -try_to_freeze_tasks() that sets TIF_FREEZE for all of the freezable tasks and -either wakes them up, if they are kernel threads, or sends fake signals to them, -if they are user space processes. A task that has TIF_FREEZE set, should react -to it by calling the function called __refrigerator() (defined in -kernel/freezer.c), which sets the task's PF_FROZEN flag, changes its state -to TASK_UNINTERRUPTIBLE and makes it loop until PF_FROZEN is cleared for it. -Then, we say that the task is 'frozen' and therefore the set of functions -handling this mechanism is referred to as 'the freezer' (these functions are -defined in kernel/power/process.c, kernel/freezer.c & include/linux/freezer.h). -User space processes are generally frozen before kernel threads. +freeze_processes() (defined in kernel/power/process.c) is called. A system-wide +variable system_freezing_cnt (as opposed to a per-task flag) is used to indicate +whether the system is to undergo a freezing operation. And freeze_processes() +sets this variable. After this, it executes try_to_freeze_tasks() that sends a +fake signal to all user space processes, and wakes up all the kernel threads. +All freezable tasks must react to that by calling try_to_freeze(), which +results in a call to __refrigerator() (defined in kernel/freezer.c), which sets +the task's PF_FROZEN flag, changes its state to TASK_UNINTERRUPTIBLE and makes +it loop until PF_FROZEN is cleared for it. Then, we say that the task is +'frozen' and therefore the set of functions handling this mechanism is referred +to as 'the freezer' (these functions are defined in kernel/power/process.c, +kernel/freezer.c & include/linux/freezer.h). User space processes are generally +frozen before kernel threads. __refrigerator() must not be called directly. Instead, use the try_to_freeze() function (defined in include/linux/freezer.h), that checks -the task's TIF_FREEZE flag and makes the task enter __refrigerator() if the -flag is set. +if the task is to be frozen and makes the task enter __refrigerator(). For user space processes try_to_freeze() is called automatically from the signal-handling code, but the freezable kernel threads need to call it explicitly in suitable places or use the wait_event_freezable() or wait_event_freezable_timeout() macros (defined in include/linux/freezer.h) -that combine interruptible sleep with checking if TIF_FREEZE is set and calling -try_to_freeze(). The main loop of a freezable kernel thread may look like the -following one: +that combine interruptible sleep with checking if the task is to be frozen and +calling try_to_freeze(). The main loop of a freezable kernel thread may look +like the following one: set_freezable(); do { @@ -53,7 +54,7 @@ following one: (from drivers/usb/core/hub.c::hub_thread()). If a freezable kernel thread fails to call try_to_freeze() after the freezer has -set TIF_FREEZE for it, the freezing of tasks will fail and the entire +initiated a freezing operation, the freezing of tasks will fail and the entire hibernation operation will be cancelled. For this reason, freezable kernel threads must call try_to_freeze() somewhere or use one of the wait_event_freezable() and wait_event_freezable_timeout() macros. -- cgit v0.10.2 From 64f371bc3107e69efce563a3d0f0e6880de0d537 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 29 Apr 2012 13:30:08 -0700 Subject: autofs: make the autofsv5 packet file descriptor use a packetized pipe The autofs packet size has had a very unfortunate size problem on x86: because the alignment of 'u64' differs in 32-bit and 64-bit modes, and because the packet data was not 8-byte aligned, the size of the autofsv5 packet structure differed between 32-bit and 64-bit modes despite looking otherwise identical (300 vs 304 bytes respectively). We first fixed that up by making the 64-bit compat mode know about this problem in commit a32744d4abae ("autofs: work around unhappy compat problem on x86-64"), and that made a 32-bit 'systemd' work happily on a 64-bit kernel because everything then worked the same way as on a 32-bit kernel. But it turned out that 'automount' had actually known and worked around this problem in user space, so fixing the kernel to do the proper 32-bit compatibility handling actually *broke* 32-bit automount on a 64-bit kernel, because it knew that the packet sizes were wrong and expected those incorrect sizes. As a result, we ended up reverting that compatibility mode fix, and thus breaking systemd again, in commit fcbf94b9dedd. With both automount and systemd doing a single read() system call, and verifying that they get *exactly* the size they expect but using different sizes, it seemed that fixing one of them inevitably seemed to break the other. At one point, a patch I seriously considered applying from Michael Tokarev did a "strcmp()" to see if it was automount that was doing the operation. Ugly, ugly. However, a prettier solution exists now thanks to the packetized pipe mode. By marking the communication pipe as being packetized (by simply setting the O_DIRECT flag), we can always just write the bigger packet size, and if user-space does a smaller read, it will just get that partial end result and the extra alignment padding will simply be thrown away. This makes both automount and systemd happy, since they now get the size they asked for, and the kernel side of autofs simply no longer needs to care - it could pad out the packet arbitrarily. Of course, if there is some *other* user of autofs (please, please, please tell me it ain't so - and we haven't heard of any) that tries to read the packets with multiple writes, that other user will now be broken - the whole point of the packetized mode is that one system call gets exactly one packet, and you cannot read a packet in pieces. Tested-by: Michael Tokarev Cc: Alan Cox Cc: David Miller Cc: Ian Kent Cc: Thomas Meyer Cc: stable@kernel.org Signed-off-by: Linus Torvalds diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h index d8d8e7b..908e184 100644 --- a/fs/autofs4/autofs_i.h +++ b/fs/autofs4/autofs_i.h @@ -269,6 +269,17 @@ int autofs4_fill_super(struct super_block *, void *, int); struct autofs_info *autofs4_new_ino(struct autofs_sb_info *); void autofs4_clean_ino(struct autofs_info *); +static inline int autofs_prepare_pipe(struct file *pipe) +{ + if (!pipe->f_op || !pipe->f_op->write) + return -EINVAL; + if (!S_ISFIFO(pipe->f_dentry->d_inode->i_mode)) + return -EINVAL; + /* We want a packet pipe */ + pipe->f_flags |= O_DIRECT; + return 0; +} + /* Queue management functions */ int autofs4_wait(struct autofs_sb_info *,struct dentry *, enum autofs_notify); diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c index 3dfd615..aa9103f 100644 --- a/fs/autofs4/dev-ioctl.c +++ b/fs/autofs4/dev-ioctl.c @@ -376,7 +376,7 @@ static int autofs_dev_ioctl_setpipefd(struct file *fp, err = -EBADF; goto out; } - if (!pipe->f_op || !pipe->f_op->write) { + if (autofs_prepare_pipe(pipe) < 0) { err = -EPIPE; fput(pipe); goto out; diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c index 14c7bc0..6e488eb 100644 --- a/fs/autofs4/inode.c +++ b/fs/autofs4/inode.c @@ -290,7 +290,7 @@ int autofs4_fill_super(struct super_block *s, void *data, int silent) printk("autofs: could not open pipe file descriptor\n"); goto fail_dput; } - if (!pipe->f_op || !pipe->f_op->write) + if (autofs_prepare_pipe(pipe) < 0) goto fail_fput; sbi->pipe = pipe; sbi->pipefd = pipefd; -- cgit v0.10.2 From 69964ea4c7b68c9399f7977aa5b9aa6539a6a98a Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 29 Apr 2012 15:19:10 -0700 Subject: Linux 3.4-rc5 diff --git a/Makefile b/Makefile index afc868e..a06ee9f 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 4 SUBLEVEL = 0 -EXTRAVERSION = -rc4 +EXTRAVERSION = -rc5 NAME = Saber-toothed Squirrel # *DOCUMENTATION* -- cgit v0.10.2 From 8751ed14dcdd692733072966bf97b6b8c21ccaad Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Mon, 23 Apr 2012 12:30:01 +0000 Subject: powerpc/8xx: Fix NR_IRQ bugs and refactor 8xx interrupt controller The mpc8xx driver uses a reference to NR_IRQS that is buggy. It uses NR_IRQs for the array size of the ppc_cached_irq_mask bitmap, but NR_IRQs could be smaller than the number of hardware irqs that ppc_cached_irq_mask tracks. Also, while fixing that problem, it became apparent that the interrupt controller only supports 32 interrupt numbers, but it is written as if it supports multiple register banks which is more complicated. This patch pulls out the buggy reference to NR_IRQs and fixes the size of the ppc_cached_irq_mask to match the number of HW irqs. It also drops the now-unnecessary code since ppc_cached_irq_mask is no longer an array. Signed-off-by: Grant Likely Signed-off-by: Benjamin Herrenschmidt diff --git a/arch/powerpc/sysdev/mpc8xx_pic.c b/arch/powerpc/sysdev/mpc8xx_pic.c index d5f5416..b724622 100644 --- a/arch/powerpc/sysdev/mpc8xx_pic.c +++ b/arch/powerpc/sysdev/mpc8xx_pic.c @@ -18,69 +18,45 @@ extern int cpm_get_irq(struct pt_regs *regs); static struct irq_domain *mpc8xx_pic_host; -#define NR_MASK_WORDS ((NR_IRQS + 31) / 32) -static unsigned long ppc_cached_irq_mask[NR_MASK_WORDS]; +static unsigned long mpc8xx_cached_irq_mask; static sysconf8xx_t __iomem *siu_reg; -int cpm_get_irq(struct pt_regs *regs); +static inline unsigned long mpc8xx_irqd_to_bit(struct irq_data *d) +{ + return 0x80000000 >> irqd_to_hwirq(d); +} static void mpc8xx_unmask_irq(struct irq_data *d) { - int bit, word; - unsigned int irq_nr = (unsigned int)irqd_to_hwirq(d); - - bit = irq_nr & 0x1f; - word = irq_nr >> 5; - - ppc_cached_irq_mask[word] |= (1 << (31-bit)); - out_be32(&siu_reg->sc_simask, ppc_cached_irq_mask[word]); + mpc8xx_cached_irq_mask |= mpc8xx_irqd_to_bit(d); + out_be32(&siu_reg->sc_simask, mpc8xx_cached_irq_mask); } static void mpc8xx_mask_irq(struct irq_data *d) { - int bit, word; - unsigned int irq_nr = (unsigned int)irqd_to_hwirq(d); - - bit = irq_nr & 0x1f; - word = irq_nr >> 5; - - ppc_cached_irq_mask[word] &= ~(1 << (31-bit)); - out_be32(&siu_reg->sc_simask, ppc_cached_irq_mask[word]); + mpc8xx_cached_irq_mask &= ~mpc8xx_irqd_to_bit(d); + out_be32(&siu_reg->sc_simask, mpc8xx_cached_irq_mask); } static void mpc8xx_ack(struct irq_data *d) { - int bit; - unsigned int irq_nr = (unsigned int)irqd_to_hwirq(d); - - bit = irq_nr & 0x1f; - out_be32(&siu_reg->sc_sipend, 1 << (31-bit)); + out_be32(&siu_reg->sc_sipend, mpc8xx_irqd_to_bit(d)); } static void mpc8xx_end_irq(struct irq_data *d) { - int bit, word; - unsigned int irq_nr = (unsigned int)irqd_to_hwirq(d); - - bit = irq_nr & 0x1f; - word = irq_nr >> 5; - - ppc_cached_irq_mask[word] |= (1 << (31-bit)); - out_be32(&siu_reg->sc_simask, ppc_cached_irq_mask[word]); + mpc8xx_cached_irq_mask |= mpc8xx_irqd_to_bit(d); + out_be32(&siu_reg->sc_simask, mpc8xx_cached_irq_mask); } static int mpc8xx_set_irq_type(struct irq_data *d, unsigned int flow_type) { - if (flow_type & IRQ_TYPE_EDGE_FALLING) { - irq_hw_number_t hw = (unsigned int)irqd_to_hwirq(d); + /* only external IRQ senses are programmable */ + if ((flow_type & IRQ_TYPE_EDGE_FALLING) && !(irqd_to_hwirq(d) & 1)) { unsigned int siel = in_be32(&siu_reg->sc_siel); - - /* only external IRQ senses are programmable */ - if ((hw & 1) == 0) { - siel |= (0x80000000 >> hw); - out_be32(&siu_reg->sc_siel, siel); - __irq_set_handler_locked(d->irq, handle_edge_irq); - } + siel |= mpc8xx_irqd_to_bit(d); + out_be32(&siu_reg->sc_siel, siel); + __irq_set_handler_locked(d->irq, handle_edge_irq); } return 0; } @@ -132,6 +108,9 @@ static int mpc8xx_pic_host_xlate(struct irq_domain *h, struct device_node *ct, IRQ_TYPE_EDGE_FALLING, }; + if (intspec[0] > 0x1f) + return 0; + *out_hwirq = intspec[0]; if (intsize > 1 && intspec[1] < 4) *out_flags = map_pic_senses[intspec[1]]; -- cgit v0.10.2 From 4013369f3782af9a488e37c2b603f1dcf008ea76 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Mon, 23 Apr 2012 12:30:02 +0000 Subject: powerpc/irqdomain: Fix broken NR_IRQ references The switch from using irq_map to irq_alloc_desc*() for managing irq number allocations introduced new bugs in some of the powerpc interrupt code. Several functions rely on the value of NR_IRQS to determine the maximum irq number that could get allocated. However, with sparse_irq and using irq_alloc_desc*() the maximum possible irq number is now specified with 'nr_irqs' which may be a number larger than NR_IRQS. This has caused breakage on powermac when CONFIG_NR_IRQS is set to 32. This patch removes most of the direct references to NR_IRQS in the powerpc code and replaces them with either a nr_irqs reference or by using the common for_each_irq_desc() macro. The powerpc-specific for_each_irq() macro is removed at the same time. Also, the Cell axon_msi driver is refactored to remove the global build assumption on the size of NR_IRQS and instead add a limit to the maximum irq number when calling irq_domain_add_nomap(). Signed-off-by: Grant Likely Signed-off-by: Benjamin Herrenschmidt diff --git a/arch/powerpc/include/asm/irq.h b/arch/powerpc/include/asm/irq.h index e648af9..0e40843 100644 --- a/arch/powerpc/include/asm/irq.h +++ b/arch/powerpc/include/asm/irq.h @@ -18,10 +18,6 @@ #include -/* Define a way to iterate across irqs. */ -#define for_each_irq(i) \ - for ((i) = 0; (i) < NR_IRQS; ++(i)) - extern atomic_t ppc_n_lost_interrupts; /* This number is used when no interrupt has been assigned */ diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 5ec1b23..43eb74f 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -330,14 +330,10 @@ void migrate_irqs(void) alloc_cpumask_var(&mask, GFP_KERNEL); - for_each_irq(irq) { + for_each_irq_desc(irq, desc) { struct irq_data *data; struct irq_chip *chip; - desc = irq_to_desc(irq); - if (!desc) - continue; - data = irq_desc_get_irq_data(desc); if (irqd_is_per_cpu(data)) continue; diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c index c957b12..5df7777 100644 --- a/arch/powerpc/kernel/machine_kexec.c +++ b/arch/powerpc/kernel/machine_kexec.c @@ -23,14 +23,11 @@ void machine_kexec_mask_interrupts(void) { unsigned int i; + struct irq_desc *desc; - for_each_irq(i) { - struct irq_desc *desc = irq_to_desc(i); + for_each_irq_desc(i, desc) { struct irq_chip *chip; - if (!desc) - continue; - chip = irq_desc_get_chip(desc); if (!chip) continue; diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c index d09f3e8..85825b5 100644 --- a/arch/powerpc/platforms/cell/axon_msi.c +++ b/arch/powerpc/platforms/cell/axon_msi.c @@ -114,7 +114,7 @@ static void axon_msi_cascade(unsigned int irq, struct irq_desc *desc) pr_devel("axon_msi: woff %x roff %x msi %x\n", write_offset, msic->read_offset, msi); - if (msi < NR_IRQS && irq_get_chip_data(msi) == msic) { + if (msi < nr_irqs && irq_get_chip_data(msi) == msic) { generic_handle_irq(msi); msic->fifo_virt[idx] = cpu_to_le32(0xffffffff); } else { @@ -276,9 +276,6 @@ static int axon_msi_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) if (rc) return rc; - /* We rely on being able to stash a virq in a u16 */ - BUILD_BUG_ON(NR_IRQS > 65536); - list_for_each_entry(entry, &dev->msi_list, list) { virq = irq_create_direct_mapping(msic->irq_domain); if (virq == NO_IRQ) { @@ -392,7 +389,8 @@ static int axon_msi_probe(struct platform_device *device) } memset(msic->fifo_virt, 0xff, MSIC_FIFO_SIZE_BYTES); - msic->irq_domain = irq_domain_add_nomap(dn, 0, &msic_host_ops, msic); + /* We rely on being able to stash a virq in a u16, so limit irqs to < 65536 */ + msic->irq_domain = irq_domain_add_nomap(dn, 65536, &msic_host_ops, msic); if (!msic->irq_domain) { printk(KERN_ERR "axon_msi: couldn't allocate irq_domain for %s\n", dn->full_name); diff --git a/arch/powerpc/platforms/cell/beat_interrupt.c b/arch/powerpc/platforms/cell/beat_interrupt.c index f9a48af..8c6dc42 100644 --- a/arch/powerpc/platforms/cell/beat_interrupt.c +++ b/arch/powerpc/platforms/cell/beat_interrupt.c @@ -248,6 +248,6 @@ void beatic_deinit_IRQ(void) { int i; - for (i = 1; i < NR_IRQS; i++) + for (i = 1; i < nr_irqs; i++) beat_destruct_irq_plug(i); } diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c index 66ad93d..c4e6305 100644 --- a/arch/powerpc/platforms/powermac/pic.c +++ b/arch/powerpc/platforms/powermac/pic.c @@ -57,9 +57,9 @@ static int max_real_irqs; static DEFINE_RAW_SPINLOCK(pmac_pic_lock); -#define NR_MASK_WORDS ((NR_IRQS + 31) / 32) -static unsigned long ppc_lost_interrupts[NR_MASK_WORDS]; -static unsigned long ppc_cached_irq_mask[NR_MASK_WORDS]; +/* The max irq number this driver deals with is 128; see max_irqs */ +static DECLARE_BITMAP(ppc_lost_interrupts, 128); +static DECLARE_BITMAP(ppc_cached_irq_mask, 128); static int pmac_irq_cascade = -1; static struct irq_domain *pmac_pic_host; diff --git a/arch/powerpc/sysdev/cpm2_pic.c b/arch/powerpc/sysdev/cpm2_pic.c index d3be961..10386b6 100644 --- a/arch/powerpc/sysdev/cpm2_pic.c +++ b/arch/powerpc/sysdev/cpm2_pic.c @@ -51,8 +51,7 @@ static intctl_cpm2_t __iomem *cpm2_intctl; static struct irq_domain *cpm2_pic_host; -#define NR_MASK_WORDS ((NR_IRQS + 31) / 32) -static unsigned long ppc_cached_irq_mask[NR_MASK_WORDS]; +static unsigned long ppc_cached_irq_mask[2]; /* 2 32-bit registers */ static const u_char irq_to_siureg[] = { 1, 1, 1, 1, 1, 1, 1, 1, diff --git a/arch/powerpc/sysdev/xics/xics-common.c b/arch/powerpc/sysdev/xics/xics-common.c index ea5e204..cd1d18d 100644 --- a/arch/powerpc/sysdev/xics/xics-common.c +++ b/arch/powerpc/sysdev/xics/xics-common.c @@ -188,6 +188,7 @@ void xics_migrate_irqs_away(void) { int cpu = smp_processor_id(), hw_cpu = hard_smp_processor_id(); unsigned int irq, virq; + struct irq_desc *desc; /* If we used to be the default server, move to the new "boot_cpuid" */ if (hw_cpu == xics_default_server) @@ -202,8 +203,7 @@ void xics_migrate_irqs_away(void) /* Allow IPIs again... */ icp_ops->set_priority(DEFAULT_PRIORITY); - for_each_irq(virq) { - struct irq_desc *desc; + for_each_irq_desc(virq, desc) { struct irq_chip *chip; long server; unsigned long flags; @@ -212,9 +212,8 @@ void xics_migrate_irqs_away(void) /* We can't set affinity on ISA interrupts */ if (virq < NUM_ISA_INTERRUPTS) continue; - desc = irq_to_desc(virq); /* We only need to migrate enabled IRQS */ - if (!desc || !desc->action) + if (!desc->action) continue; if (desc->irq_data.domain != xics_host) continue; -- cgit v0.10.2 From e49f7a9997c61cf800f2db5decba68d318352ef0 Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Tue, 24 Apr 2012 19:11:22 +0000 Subject: powerpc/pseries: Rivet CONFIG_EEH for pSeries platform Recently, Ryan Wang tried to compile PPC pSeries platform without CONFIG_EEH and eventually run into errors. Nishanth Aravamudan helped to narrow down the root cause. Actually, the pSeries platform depends on CONFIG_EEH heavily and that won't work properly without EEH support. According to Ben's suggestion, the patch make CONFIG_EEH invisible and keep it as always selected on pSeries platform. Signed-off-by: Gavin Shan Signed-off-by: Benjamin Herrenschmidt diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig index aadbe4f..178a5f3 100644 --- a/arch/powerpc/platforms/pseries/Kconfig +++ b/arch/powerpc/platforms/pseries/Kconfig @@ -30,9 +30,9 @@ config PPC_SPLPAR two or more partitions. config EEH - bool "PCI Extended Error Handling (EEH)" if EXPERT + bool depends on PPC_PSERIES && PCI - default y if !EXPERT + default y config PSERIES_MSI bool -- cgit v0.10.2 From 810b4de25e53459323ff48957b0162b48d6cbd57 Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Sat, 28 Apr 2012 18:53:49 -0500 Subject: tty/serial/pmac_zilog: Fix "nobody cared" IRQ message Following commit a79dd5a titled "tty/serial/pmac_zilog: Fix suspend & resume", my Powerbook G4 Titanium showed the following stack dump: [ 36.878225] irq 23: nobody cared (try booting with the "irqpoll" option) [ 36.878251] Call Trace: [ 36.878291] [dfff3f00] [c000984c] show_stack+0x7c/0x194 (unreliable) [ 36.878322] [dfff3f40] [c00a6868] __report_bad_irq+0x44/0xf4 [ 36.878339] [dfff3f60] [c00a6b04] note_interrupt+0x1ec/0x2ac [ 36.878356] [dfff3f80] [c00a48d0] handle_irq_event_percpu+0x250/0x2b8 [ 36.878372] [dfff3fd0] [c00a496c] handle_irq_event+0x34/0x54 [ 36.878389] [dfff3fe0] [c00a753c] handle_fasteoi_irq+0xb4/0x124 [ 36.878412] [dfff3ff0] [c000f5bc] call_handle_irq+0x18/0x28 [ 36.878428] [deef1f10] [c000719c] do_IRQ+0x114/0x1cc [ 36.878446] [deef1f40] [c0015868] ret_from_except+0x0/0x1c [ 36.878484] --- Exception: 501 at 0xf497610 [ 36.878489] LR = 0xfdc3dd0 [ 36.878497] handlers: [ 36.878510] [] pmz_interrupt [ 36.878520] Disabling IRQ #23 From an E-mail exchange about this problem, Andreas Schwab noticed a typo that resulted in the wrong condition being tested. The patch also corrects 2 typos that incorrectly report why an error branch is being taken. Signed-off-by: Larry Finger Signed-off-by: Benjamin Herrenschmidt diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c index 08ebe90..654755a 100644 --- a/drivers/tty/serial/pmac_zilog.c +++ b/drivers/tty/serial/pmac_zilog.c @@ -469,7 +469,7 @@ static irqreturn_t pmz_interrupt(int irq, void *dev_id) tty = NULL; if (r3 & (CHAEXT | CHATxIP | CHARxIP)) { if (!ZS_IS_OPEN(uap_a)) { - pmz_debug("ChanA interrupt while open !\n"); + pmz_debug("ChanA interrupt while not open !\n"); goto skip_a; } write_zsreg(uap_a, R0, RES_H_IUS); @@ -493,8 +493,8 @@ static irqreturn_t pmz_interrupt(int irq, void *dev_id) spin_lock(&uap_b->port.lock); tty = NULL; if (r3 & (CHBEXT | CHBTxIP | CHBRxIP)) { - if (!ZS_IS_OPEN(uap_a)) { - pmz_debug("ChanB interrupt while open !\n"); + if (!ZS_IS_OPEN(uap_b)) { + pmz_debug("ChanB interrupt while not open !\n"); goto skip_b; } write_zsreg(uap_b, R0, RES_H_IUS); -- cgit v0.10.2 From 5206b524c9b4e289ab0565e7bffd503d2e671c6e Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Fri, 13 Apr 2012 19:22:30 +1000 Subject: drm/nouveau/bios: fix regression on some nv4x board We started using the connector table on nv4x a while back, and this VBIOS has bad connector indices which causes the wrong encoders to get paired with connectors. Add a quirk to fix this... Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c index 80963d0..0be4a81 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.c +++ b/drivers/gpu/drm/nouveau/nouveau_bios.c @@ -6156,10 +6156,14 @@ dcb_fake_connectors(struct nvbios *bios) /* heuristic: if we ever get a non-zero connector field, assume * that all the indices are valid and we don't need fake them. + * + * and, as usual, a blacklist of boards with bad bios data.. */ - for (i = 0; i < dcbt->entries; i++) { - if (dcbt->entry[i].connector) - return; + if (!nv_match_device(bios->dev, 0x0392, 0x107d, 0x20a2)) { + for (i = 0; i < dcbt->entries; i++) { + if (dcbt->entry[i].connector) + return; + } } /* no useful connector info available, we need to make it up -- cgit v0.10.2 From 0ed4bb92f5514bd1118c5dd537ce424381110286 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 24 Apr 2012 13:26:51 +1000 Subject: drm/nouveau/hdmi: use correct hdmi regs for nvaa/nvac Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/nouveau_hdmi.c b/drivers/gpu/drm/nouveau/nouveau_hdmi.c index 59ea1c1..c3de363 100644 --- a/drivers/gpu/drm/nouveau/nouveau_hdmi.c +++ b/drivers/gpu/drm/nouveau/nouveau_hdmi.c @@ -32,7 +32,9 @@ static bool hdmi_sor(struct drm_encoder *encoder) { struct drm_nouveau_private *dev_priv = encoder->dev->dev_private; - if (dev_priv->chipset < 0xa3) + if (dev_priv->chipset < 0xa3 || + dev_priv->chipset == 0xaa || + dev_priv->chipset == 0xac) return false; return true; } -- cgit v0.10.2 From ffc6a4e49e5bc117aac13ed752cfc018c163e2ac Mon Sep 17 00:00:00 2001 From: Christoph Bumiller Date: Thu, 19 Apr 2012 19:59:20 +0200 Subject: nvc0/fb: shut up PMFB interrupt after the first occurrence Signed-off-by: Christoph Bumiller Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/nvc0_fb.c b/drivers/gpu/drm/nouveau/nvc0_fb.c index 5bf5503..f704e94 100644 --- a/drivers/gpu/drm/nouveau/nvc0_fb.c +++ b/drivers/gpu/drm/nouveau/nvc0_fb.c @@ -54,6 +54,11 @@ nvc0_mfb_isr(struct drm_device *dev) nvc0_mfb_subp_isr(dev, unit, subp); units &= ~(1 << unit); } + + /* we do something horribly wrong and upset PMFB a lot, so mask off + * interrupts from it after the first one until it's fixed + */ + nv_mask(dev, 0x000640, 0x02000000, 0x00000000); } static void -- cgit v0.10.2 From b99da31ed8521eb78d5d6930f3128f8ecdb75fae Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Fri, 27 Apr 2012 15:11:33 +1000 Subject: drm/nv10/gpio: fix thinko in mask for gpio lines 2-9 Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/nv10_gpio.c b/drivers/gpu/drm/nouveau/nv10_gpio.c index 550ad3f..9d79180 100644 --- a/drivers/gpu/drm/nouveau/nv10_gpio.c +++ b/drivers/gpu/drm/nouveau/nv10_gpio.c @@ -65,7 +65,7 @@ nv10_gpio_drive(struct drm_device *dev, int line, int dir, int out) if (line < 10) { line = (line - 2) * 4; reg = NV_PCRTC_GPIO_EXT; - mask = 0x00000003 << ((line - 2) * 4); + mask = 0x00000003; data = (dir << 1) | out; } else if (line < 14) { -- cgit v0.10.2 From 4b984cd50bc1b6d492175cd77bfabb78e76ffa67 Mon Sep 17 00:00:00 2001 From: Hans Schillstrom Date: Thu, 26 Apr 2012 09:45:34 +0200 Subject: ipvs: null check of net->ipvs in lblc(r) shedulers Avoid crash when registering shedulers after the IPVS core initialization for netns fails. Do this by checking for present core (net->ipvs). Signed-off-by: Hans Schillstrom Acked-by: Julian Anastasov Signed-off-by: Simon Horman diff --git a/net/netfilter/ipvs/ip_vs_lblc.c b/net/netfilter/ipvs/ip_vs_lblc.c index 0f16283..caa4370 100644 --- a/net/netfilter/ipvs/ip_vs_lblc.c +++ b/net/netfilter/ipvs/ip_vs_lblc.c @@ -551,6 +551,9 @@ static int __net_init __ip_vs_lblc_init(struct net *net) { struct netns_ipvs *ipvs = net_ipvs(net); + if (!ipvs) + return -ENOENT; + if (!net_eq(net, &init_net)) { ipvs->lblc_ctl_table = kmemdup(vs_vars_table, sizeof(vs_vars_table), diff --git a/net/netfilter/ipvs/ip_vs_lblcr.c b/net/netfilter/ipvs/ip_vs_lblcr.c index eec797f..548bf37 100644 --- a/net/netfilter/ipvs/ip_vs_lblcr.c +++ b/net/netfilter/ipvs/ip_vs_lblcr.c @@ -745,6 +745,9 @@ static int __net_init __ip_vs_lblcr_init(struct net *net) { struct netns_ipvs *ipvs = net_ipvs(net); + if (!ipvs) + return -ENOENT; + if (!net_eq(net, &init_net)) { ipvs->lblcr_ctl_table = kmemdup(vs_vars_table, sizeof(vs_vars_table), -- cgit v0.10.2 From 582b8e3eadaec77788c1aa188081a8d5059c42a6 Mon Sep 17 00:00:00 2001 From: Hans Schillstrom Date: Thu, 26 Apr 2012 09:45:35 +0200 Subject: ipvs: take care of return value from protocol init_netns ip_vs_create_timeout_table() can return NULL All functions protocol init_netns is affected of this patch. Signed-off-by: Hans Schillstrom Acked-by: Julian Anastasov Signed-off-by: Simon Horman diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h index 2bdee51..6d90dda 100644 --- a/include/net/ip_vs.h +++ b/include/net/ip_vs.h @@ -393,7 +393,7 @@ struct ip_vs_protocol { void (*exit)(struct ip_vs_protocol *pp); - void (*init_netns)(struct net *net, struct ip_vs_proto_data *pd); + int (*init_netns)(struct net *net, struct ip_vs_proto_data *pd); void (*exit_netns)(struct net *net, struct ip_vs_proto_data *pd); diff --git a/net/netfilter/ipvs/ip_vs_proto.c b/net/netfilter/ipvs/ip_vs_proto.c index a62360e..ed835e6 100644 --- a/net/netfilter/ipvs/ip_vs_proto.c +++ b/net/netfilter/ipvs/ip_vs_proto.c @@ -78,8 +78,15 @@ register_ip_vs_proto_netns(struct net *net, struct ip_vs_protocol *pp) ipvs->proto_data_table[hash] = pd; atomic_set(&pd->appcnt, 0); /* Init app counter */ - if (pp->init_netns != NULL) - pp->init_netns(net, pd); + if (pp->init_netns != NULL) { + int ret = pp->init_netns(net, pd); + if (ret) { + /* unlink an free proto data */ + ipvs->proto_data_table[hash] = pd->next; + kfree(pd); + return ret; + } + } return 0; } diff --git a/net/netfilter/ipvs/ip_vs_proto_sctp.c b/net/netfilter/ipvs/ip_vs_proto_sctp.c index 1fbf7a2..9f3fb75 100644 --- a/net/netfilter/ipvs/ip_vs_proto_sctp.c +++ b/net/netfilter/ipvs/ip_vs_proto_sctp.c @@ -1090,7 +1090,7 @@ out: * timeouts is netns related now. * --------------------------------------------- */ -static void __ip_vs_sctp_init(struct net *net, struct ip_vs_proto_data *pd) +static int __ip_vs_sctp_init(struct net *net, struct ip_vs_proto_data *pd) { struct netns_ipvs *ipvs = net_ipvs(net); @@ -1098,6 +1098,9 @@ static void __ip_vs_sctp_init(struct net *net, struct ip_vs_proto_data *pd) spin_lock_init(&ipvs->sctp_app_lock); pd->timeout_table = ip_vs_create_timeout_table((int *)sctp_timeouts, sizeof(sctp_timeouts)); + if (!pd->timeout_table) + return -ENOMEM; + return 0; } static void __ip_vs_sctp_exit(struct net *net, struct ip_vs_proto_data *pd) diff --git a/net/netfilter/ipvs/ip_vs_proto_tcp.c b/net/netfilter/ipvs/ip_vs_proto_tcp.c index ef8641f..cd609cc 100644 --- a/net/netfilter/ipvs/ip_vs_proto_tcp.c +++ b/net/netfilter/ipvs/ip_vs_proto_tcp.c @@ -677,7 +677,7 @@ void ip_vs_tcp_conn_listen(struct net *net, struct ip_vs_conn *cp) * timeouts is netns related now. * --------------------------------------------- */ -static void __ip_vs_tcp_init(struct net *net, struct ip_vs_proto_data *pd) +static int __ip_vs_tcp_init(struct net *net, struct ip_vs_proto_data *pd) { struct netns_ipvs *ipvs = net_ipvs(net); @@ -685,7 +685,10 @@ static void __ip_vs_tcp_init(struct net *net, struct ip_vs_proto_data *pd) spin_lock_init(&ipvs->tcp_app_lock); pd->timeout_table = ip_vs_create_timeout_table((int *)tcp_timeouts, sizeof(tcp_timeouts)); + if (!pd->timeout_table) + return -ENOMEM; pd->tcp_state_table = tcp_states; + return 0; } static void __ip_vs_tcp_exit(struct net *net, struct ip_vs_proto_data *pd) diff --git a/net/netfilter/ipvs/ip_vs_proto_udp.c b/net/netfilter/ipvs/ip_vs_proto_udp.c index f4b7262..2fedb2d 100644 --- a/net/netfilter/ipvs/ip_vs_proto_udp.c +++ b/net/netfilter/ipvs/ip_vs_proto_udp.c @@ -467,7 +467,7 @@ udp_state_transition(struct ip_vs_conn *cp, int direction, cp->timeout = pd->timeout_table[IP_VS_UDP_S_NORMAL]; } -static void __udp_init(struct net *net, struct ip_vs_proto_data *pd) +static int __udp_init(struct net *net, struct ip_vs_proto_data *pd) { struct netns_ipvs *ipvs = net_ipvs(net); @@ -475,6 +475,9 @@ static void __udp_init(struct net *net, struct ip_vs_proto_data *pd) spin_lock_init(&ipvs->udp_app_lock); pd->timeout_table = ip_vs_create_timeout_table((int *)udp_timeouts, sizeof(udp_timeouts)); + if (!pd->timeout_table) + return -ENOMEM; + return 0; } static void __udp_exit(struct net *net, struct ip_vs_proto_data *pd) -- cgit v0.10.2 From 8537de8a7ab6681cc72fb0411ab1ba7fdba62dd0 Mon Sep 17 00:00:00 2001 From: Hans Schillstrom Date: Thu, 26 Apr 2012 07:47:44 +0200 Subject: ipvs: kernel oops - do_ip_vs_get_ctl Change order of init so netns init is ready when register ioctl and netlink. Ver2 Whitespace fixes and __init added. Reported-by: "Ryan O'Hara" Signed-off-by: Hans Schillstrom Acked-by: Julian Anastasov Signed-off-by: Jesper Dangaard Brouer Signed-off-by: Simon Horman diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h index 6d90dda..72522f0 100644 --- a/include/net/ip_vs.h +++ b/include/net/ip_vs.h @@ -1203,6 +1203,8 @@ ip_vs_lookup_real_service(struct net *net, int af, __u16 protocol, extern int ip_vs_use_count_inc(void); extern void ip_vs_use_count_dec(void); +extern int ip_vs_register_nl_ioctl(void); +extern void ip_vs_unregister_nl_ioctl(void); extern int ip_vs_control_init(void); extern void ip_vs_control_cleanup(void); extern struct ip_vs_dest * diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c index 260b9ef..00bdb1d 100644 --- a/net/netfilter/ipvs/ip_vs_core.c +++ b/net/netfilter/ipvs/ip_vs_core.c @@ -1995,10 +1995,18 @@ static int __init ip_vs_init(void) goto cleanup_dev; } + ret = ip_vs_register_nl_ioctl(); + if (ret < 0) { + pr_err("can't register netlink/ioctl.\n"); + goto cleanup_hooks; + } + pr_info("ipvs loaded.\n"); return ret; +cleanup_hooks: + nf_unregister_hooks(ip_vs_ops, ARRAY_SIZE(ip_vs_ops)); cleanup_dev: unregister_pernet_device(&ipvs_core_dev_ops); cleanup_sub: @@ -2014,6 +2022,7 @@ exit: static void __exit ip_vs_cleanup(void) { + ip_vs_unregister_nl_ioctl(); nf_unregister_hooks(ip_vs_ops, ARRAY_SIZE(ip_vs_ops)); unregister_pernet_device(&ipvs_core_dev_ops); unregister_pernet_subsys(&ipvs_core_ops); /* free ip_vs struct */ diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c index 376d2b1..f558998 100644 --- a/net/netfilter/ipvs/ip_vs_ctl.c +++ b/net/netfilter/ipvs/ip_vs_ctl.c @@ -3750,21 +3750,10 @@ void __net_exit ip_vs_control_net_cleanup(struct net *net) free_percpu(ipvs->tot_stats.cpustats); } -int __init ip_vs_control_init(void) +int __init ip_vs_register_nl_ioctl(void) { - int idx; int ret; - EnterFunction(2); - - /* Initialize svc_table, ip_vs_svc_fwm_table, rs_table */ - for(idx = 0; idx < IP_VS_SVC_TAB_SIZE; idx++) { - INIT_LIST_HEAD(&ip_vs_svc_table[idx]); - INIT_LIST_HEAD(&ip_vs_svc_fwm_table[idx]); - } - - smp_wmb(); /* Do we really need it now ? */ - ret = nf_register_sockopt(&ip_vs_sockopts); if (ret) { pr_err("cannot register sockopt.\n"); @@ -3776,28 +3765,47 @@ int __init ip_vs_control_init(void) pr_err("cannot register Generic Netlink interface.\n"); goto err_genl; } - - ret = register_netdevice_notifier(&ip_vs_dst_notifier); - if (ret < 0) - goto err_notf; - - LeaveFunction(2); return 0; -err_notf: - ip_vs_genl_unregister(); err_genl: nf_unregister_sockopt(&ip_vs_sockopts); err_sock: return ret; } +void ip_vs_unregister_nl_ioctl(void) +{ + ip_vs_genl_unregister(); + nf_unregister_sockopt(&ip_vs_sockopts); +} + +int __init ip_vs_control_init(void) +{ + int idx; + int ret; + + EnterFunction(2); + + /* Initialize svc_table, ip_vs_svc_fwm_table, rs_table */ + for (idx = 0; idx < IP_VS_SVC_TAB_SIZE; idx++) { + INIT_LIST_HEAD(&ip_vs_svc_table[idx]); + INIT_LIST_HEAD(&ip_vs_svc_fwm_table[idx]); + } + + smp_wmb(); /* Do we really need it now ? */ + + ret = register_netdevice_notifier(&ip_vs_dst_notifier); + if (ret < 0) + return ret; + + LeaveFunction(2); + return 0; +} + void ip_vs_control_cleanup(void) { EnterFunction(2); unregister_netdevice_notifier(&ip_vs_dst_notifier); - ip_vs_genl_unregister(); - nf_unregister_sockopt(&ip_vs_sockopts); LeaveFunction(2); } -- cgit v0.10.2 From 6cf51852486af3d79f57bf46d00209a14244dbaa Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Fri, 27 Apr 2012 02:00:50 +0200 Subject: netfilter: xt_CT: fix wrong checking in the timeout assignment path The current checking always succeeded. We have to check the first character of the string to check that it's empty, thus, skipping the timeout path. This fixes the use of the CT target without the timeout option. Signed-off-by: Pablo Neira Ayuso diff --git a/net/netfilter/xt_CT.c b/net/netfilter/xt_CT.c index 59530e9..3746d8b 100644 --- a/net/netfilter/xt_CT.c +++ b/net/netfilter/xt_CT.c @@ -227,7 +227,7 @@ static int xt_ct_tg_check_v1(const struct xt_tgchk_param *par) } #ifdef CONFIG_NF_CONNTRACK_TIMEOUT - if (info->timeout) { + if (info->timeout[0]) { typeof(nf_ct_timeout_find_get_hook) timeout_find_get; struct nf_conn_timeout *timeout_ext; -- cgit v0.10.2 From e875c1e3e758447ba81ca450d89434b3b0496d37 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Eric=20B=C3=A9nard?= Date: Sun, 29 Apr 2012 17:37:57 +0200 Subject: ASoC: tlv312aic23: unbreak resume MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * commit f9dfbf9 "ASoC: tlv320aic23: convert to soc-cache" leads to a bug preventing resumeof the codec as regmap expects a 9 bits data register but 0xFFFF is passed in tlv320aic23_set_bias_level and this values gets cached preventing any write to the TLV320AIC23_PWR register as the final value produced by regmap is (register << 9) | value * this patch solves the problem by only working on the 9 bits the register contains. Signed-off-by: Eric Bénard Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/sound/soc/codecs/tlv320aic23.c b/sound/soc/codecs/tlv320aic23.c index 16d55f9..df1e07f 100644 --- a/sound/soc/codecs/tlv320aic23.c +++ b/sound/soc/codecs/tlv320aic23.c @@ -472,7 +472,7 @@ static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai, static int tlv320aic23_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { - u16 reg = snd_soc_read(codec, TLV320AIC23_PWR) & 0xff7f; + u16 reg = snd_soc_read(codec, TLV320AIC23_PWR) & 0x17f; switch (level) { case SND_SOC_BIAS_ON: @@ -491,7 +491,7 @@ static int tlv320aic23_set_bias_level(struct snd_soc_codec *codec, case SND_SOC_BIAS_OFF: /* everything off, dac mute, inactive */ snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x0); - snd_soc_write(codec, TLV320AIC23_PWR, 0xffff); + snd_soc_write(codec, TLV320AIC23_PWR, 0x1ff); break; } codec->dapm.bias_level = level; -- cgit v0.10.2 From cbbb34498f8b2b26cbdc79532c8a2ee5cd1e756a Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Mon, 30 Apr 2012 11:52:40 -0400 Subject: SUNRPC: RPC client must use the current utsname hostname string Now that the rpc client is namespace aware, it needs to use the utsname of the process that created it instead of using the init_utsname. Both rpc_new_client and rpc_clone_client need to be fixed. Signed-off-by: Trond Myklebust Cc: Stanislav Kinsbursky diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index d127bd7..adf2990 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -279,6 +279,14 @@ void rpc_clients_notifier_unregister(void) return rpc_pipefs_notifier_unregister(&rpc_clients_block); } +static void rpc_clnt_set_nodename(struct rpc_clnt *clnt, const char *nodename) +{ + clnt->cl_nodelen = strlen(nodename); + if (clnt->cl_nodelen > UNX_MAXNODENAME) + clnt->cl_nodelen = UNX_MAXNODENAME; + memcpy(clnt->cl_nodename, nodename, clnt->cl_nodelen); +} + static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, struct rpc_xprt *xprt) { const struct rpc_program *program = args->program; @@ -359,10 +367,7 @@ static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, stru } /* save the nodename */ - clnt->cl_nodelen = strlen(init_utsname()->nodename); - if (clnt->cl_nodelen > UNX_MAXNODENAME) - clnt->cl_nodelen = UNX_MAXNODENAME; - memcpy(clnt->cl_nodename, init_utsname()->nodename, clnt->cl_nodelen); + rpc_clnt_set_nodename(clnt, utsname()->nodename); rpc_register_client(clnt); return clnt; @@ -521,6 +526,7 @@ rpc_clone_client(struct rpc_clnt *clnt) err = rpc_setup_pipedir(new, clnt->cl_program->pipe_dir_name); if (err != 0) goto out_no_path; + rpc_clnt_set_nodename(new, utsname()->nodename); if (new->cl_auth) atomic_inc(&new->cl_auth->au_count); atomic_inc(&clnt->cl_count); -- cgit v0.10.2 From 3617e5031b3acec04efaa36566a8111ac8f07325 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Mon, 30 Apr 2012 12:04:58 -0400 Subject: NFSv4.1: Use the correct hostname in the client identifier string We need to use the hostname of the process that created the nfs_client. That hostname is now stored in the rpc_client->cl_nodename. Also remove the utsname()->domainname component. There is no reason to include the NIS/YP domainname in a client identifier string. Signed-off-by: Trond Myklebust diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 75eb883..99650aa 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -5122,10 +5122,9 @@ int nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred) nfs4_construct_boot_verifier(clp, &verifier); args.id_len = scnprintf(args.id, sizeof(args.id), - "%s/%s.%s/%u", + "%s/%s/%u", clp->cl_ipaddr, - init_utsname()->nodename, - init_utsname()->domainname, + clp->cl_rpcclient->cl_nodename, clp->cl_rpcclient->cl_auth->au_flavor); res.server_scope = kzalloc(sizeof(struct server_scope), GFP_KERNEL); -- cgit v0.10.2 From 518fbf9cdf17875d808596afd77fc115a6f942ca Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sat, 28 Apr 2012 23:21:56 +0000 Subject: net: fix sk_sockets_allocated_read_positive Denys Fedoryshchenko reported frequent crashes on a proxy server and kindly provided a lockdep report that explains it all : [ 762.903868] [ 762.903880] ================================= [ 762.903890] [ INFO: inconsistent lock state ] [ 762.903903] 3.3.4-build-0061 #8 Not tainted [ 762.904133] --------------------------------- [ 762.904344] inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage. [ 762.904542] squid/1603 [HC0[0]:SC0[0]:HE1:SE1] takes: [ 762.904542] (key#3){+.?...}, at: [] __percpu_counter_sum+0xd/0x58 [ 762.904542] {IN-SOFTIRQ-W} state was registered at: [ 762.904542] [] __lock_acquire+0x284/0xc26 [ 762.904542] [] lock_acquire+0x71/0x85 [ 762.904542] [] _raw_spin_lock+0x33/0x40 [ 762.904542] [] __percpu_counter_add+0x58/0x7c [ 762.904542] [] sk_clone_lock+0x1e5/0x200 [ 762.904542] [] inet_csk_clone_lock+0xe/0x78 [ 762.904542] [] tcp_create_openreq_child+0x1b/0x404 [ 762.904542] [] tcp_v4_syn_recv_sock+0x32/0x1c1 [ 762.904542] [] tcp_check_req+0x1fd/0x2d7 [ 762.904542] [] tcp_v4_do_rcv+0xab/0x194 [ 762.904542] [] tcp_v4_rcv+0x3b3/0x5cc [ 762.904542] [] ip_local_deliver_finish+0x13a/0x1e9 [ 762.904542] [] NF_HOOK.clone.11+0x46/0x4d [ 762.904542] [] ip_local_deliver+0x41/0x45 [ 762.904542] [] ip_rcv_finish+0x31a/0x33c [ 762.904542] [] NF_HOOK.clone.11+0x46/0x4d [ 762.904542] [] ip_rcv+0x201/0x23e [ 762.904542] [] __netif_receive_skb+0x319/0x368 [ 762.904542] [] netif_receive_skb+0x4e/0x7d [ 762.904542] [] napi_skb_finish+0x1e/0x34 [ 762.904542] [] napi_gro_receive+0x20/0x24 [ 762.904542] [] e1000_receive_skb+0x3f/0x45 [e1000e] [ 762.904542] [] e1000_clean_rx_irq+0x1f9/0x284 [e1000e] [ 762.904542] [] e1000_clean+0x62/0x1f4 [e1000e] [ 762.904542] [] net_rx_action+0x90/0x160 [ 762.904542] [] __do_softirq+0x7b/0x118 [ 762.904542] irq event stamp: 156915469 [ 762.904542] hardirqs last enabled at (156915469): [] __slab_alloc.clone.58.clone.63+0xc4/0x2de [ 762.904542] hardirqs last disabled at (156915468): [] __slab_alloc.clone.58.clone.63+0x22/0x2de [ 762.904542] softirqs last enabled at (156915466): [] lock_sock_nested+0x64/0x6c [ 762.904542] softirqs last disabled at (156915464): [] _raw_spin_lock_bh+0xe/0x45 [ 762.904542] [ 762.904542] other info that might help us debug this: [ 762.904542] Possible unsafe locking scenario: [ 762.904542] [ 762.904542] CPU0 [ 762.904542] ---- [ 762.904542] lock(key#3); [ 762.904542] [ 762.904542] lock(key#3); [ 762.904542] [ 762.904542] *** DEADLOCK *** [ 762.904542] [ 762.904542] 1 lock held by squid/1603: [ 762.904542] #0: (sk_lock-AF_INET){+.+.+.}, at: [] lock_sock+0xa/0xc [ 762.904542] [ 762.904542] stack backtrace: [ 762.904542] Pid: 1603, comm: squid Not tainted 3.3.4-build-0061 #8 [ 762.904542] Call Trace: [ 762.904542] [] ? printk+0x18/0x1d [ 762.904542] [] valid_state+0x1f6/0x201 [ 762.904542] [] mark_lock+0xd1/0x1bb [ 762.904542] [] ? mark_lock+0x26/0x1bb [ 762.904542] [] ? check_usage_forwards+0x77/0x77 [ 762.904542] [] __lock_acquire+0x2f8/0xc26 [ 762.904542] [] ? mark_held_locks+0x5d/0x7b [ 762.904542] [] ? trace_hardirqs_on+0xb/0xd [ 762.904542] [] ? __lock_acquire+0x4d4/0xc26 [ 762.904542] [] lock_acquire+0x71/0x85 [ 762.904542] [] ? __percpu_counter_sum+0xd/0x58 [ 762.904542] [] _raw_spin_lock+0x33/0x40 [ 762.904542] [] ? __percpu_counter_sum+0xd/0x58 [ 762.904542] [] __percpu_counter_sum+0xd/0x58 [ 762.904542] [] __sk_mem_schedule+0xdd/0x1c7 [ 762.904542] [] ? __alloc_skb+0x76/0x100 [ 762.904542] [] sk_wmem_schedule+0x21/0x2d [ 762.904542] [] sk_stream_alloc_skb+0x42/0xaa [ 762.904542] [] tcp_sendmsg+0x18f/0x68b [ 762.904542] [] ? ip_fast_csum+0x30/0x30 [ 762.904542] [] inet_sendmsg+0x53/0x5a [ 762.904542] [] sock_aio_write+0xd2/0xda [ 762.904542] [] ? mark_lock+0x26/0x1bb [ 762.904542] [] do_sync_write+0x9f/0xd9 [ 762.904542] [] ? file_free_rcu+0x2f/0x2f [ 762.904542] [] vfs_write+0x8f/0xab [ 762.904542] [] ? fget_light+0x75/0x7c [ 762.904542] [] sys_write+0x3d/0x5e [ 762.904542] [] syscall_call+0x7/0xb [ 762.904542] [] ? rp_sidt+0x41/0x83 Bug is that sk_sockets_allocated_read_positive() calls percpu_counter_sum_positive() without BH being disabled. This bug was added in commit 180d8cd942ce33 (foundations of per-cgroup memory pressure controlling.), since previous code was using percpu_counter_read_positive() which is IRQ safe. In __sk_mem_schedule() we dont need the precise count of allocated sockets and can revert to previous behavior. Reported-by: Denys Fedoryshchenko Sined-off-by: Eric Dumazet Cc: Glauber Costa Acked-by: Neal Cardwell Signed-off-by: David S. Miller diff --git a/include/net/sock.h b/include/net/sock.h index 188532e..5a0a58a 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1129,9 +1129,9 @@ sk_sockets_allocated_read_positive(struct sock *sk) struct proto *prot = sk->sk_prot; if (mem_cgroup_sockets_enabled && sk->sk_cgrp) - return percpu_counter_sum_positive(sk->sk_cgrp->sockets_allocated); + return percpu_counter_read_positive(sk->sk_cgrp->sockets_allocated); - return percpu_counter_sum_positive(prot->sockets_allocated); + return percpu_counter_read_positive(prot->sockets_allocated); } static inline int -- cgit v0.10.2 From 05be18241e83d2ac6b656c8f924e74b3998c173f Mon Sep 17 00:00:00 2001 From: Jan Seiffert Date: Sun, 29 Apr 2012 19:02:19 +0000 Subject: bpf jit: Let the powerpc jit handle negative offsets Now the helper function from filter.c for negative offsets is exported, it can be used it in the jit to handle negative offsets. First modify the asm load helper functions to handle: - know positive offsets - know negative offsets - any offset then the compiler can be modified to explicitly use these helper when appropriate. This fixes the case of a negative X register and allows to lift the restriction that bpf programs with negative offsets can't be jited. Tested-by: Benjamin Herrenschmidt Signed-off-by: Jan Seiffert Signed-off-by: David S. Miller diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h index af1ab5e..5c3cf2d 100644 --- a/arch/powerpc/net/bpf_jit.h +++ b/arch/powerpc/net/bpf_jit.h @@ -48,7 +48,13 @@ /* * Assembly helpers from arch/powerpc/net/bpf_jit.S: */ -extern u8 sk_load_word[], sk_load_half[], sk_load_byte[], sk_load_byte_msh[]; +#define DECLARE_LOAD_FUNC(func) \ + extern u8 func[], func##_negative_offset[], func##_positive_offset[] + +DECLARE_LOAD_FUNC(sk_load_word); +DECLARE_LOAD_FUNC(sk_load_half); +DECLARE_LOAD_FUNC(sk_load_byte); +DECLARE_LOAD_FUNC(sk_load_byte_msh); #define FUNCTION_DESCR_SIZE 24 diff --git a/arch/powerpc/net/bpf_jit_64.S b/arch/powerpc/net/bpf_jit_64.S index ff4506e..55ba385 100644 --- a/arch/powerpc/net/bpf_jit_64.S +++ b/arch/powerpc/net/bpf_jit_64.S @@ -31,14 +31,13 @@ * then branch directly to slow_path_XXX if required. (In fact, could * load a spare GPR with the address of slow_path_generic and pass size * as an argument, making the call site a mtlr, li and bllr.) - * - * Technically, the "is addr < 0" check is unnecessary & slowing down - * the ABS path, as it's statically checked on generation. */ .globl sk_load_word sk_load_word: cmpdi r_addr, 0 - blt bpf_error + blt bpf_slow_path_word_neg + .globl sk_load_word_positive_offset +sk_load_word_positive_offset: /* Are we accessing past headlen? */ subi r_scratch1, r_HL, 4 cmpd r_scratch1, r_addr @@ -51,7 +50,9 @@ sk_load_word: .globl sk_load_half sk_load_half: cmpdi r_addr, 0 - blt bpf_error + blt bpf_slow_path_half_neg + .globl sk_load_half_positive_offset +sk_load_half_positive_offset: subi r_scratch1, r_HL, 2 cmpd r_scratch1, r_addr blt bpf_slow_path_half @@ -61,7 +62,9 @@ sk_load_half: .globl sk_load_byte sk_load_byte: cmpdi r_addr, 0 - blt bpf_error + blt bpf_slow_path_byte_neg + .globl sk_load_byte_positive_offset +sk_load_byte_positive_offset: cmpd r_HL, r_addr ble bpf_slow_path_byte lbzx r_A, r_D, r_addr @@ -69,22 +72,20 @@ sk_load_byte: /* * BPF_S_LDX_B_MSH: ldxb 4*([offset]&0xf) - * r_addr is the offset value, already known positive + * r_addr is the offset value */ .globl sk_load_byte_msh sk_load_byte_msh: + cmpdi r_addr, 0 + blt bpf_slow_path_byte_msh_neg + .globl sk_load_byte_msh_positive_offset +sk_load_byte_msh_positive_offset: cmpd r_HL, r_addr ble bpf_slow_path_byte_msh lbzx r_X, r_D, r_addr rlwinm r_X, r_X, 2, 32-4-2, 31-2 blr -bpf_error: - /* Entered with cr0 = lt */ - li r3, 0 - /* Generated code will 'blt epilogue', returning 0. */ - blr - /* Call out to skb_copy_bits: * We'll need to back up our volatile regs first; we have * local variable space at r1+(BPF_PPC_STACK_BASIC). @@ -136,3 +137,84 @@ bpf_slow_path_byte_msh: lbz r_X, BPF_PPC_STACK_BASIC+(2*8)(r1) rlwinm r_X, r_X, 2, 32-4-2, 31-2 blr + +/* Call out to bpf_internal_load_pointer_neg_helper: + * We'll need to back up our volatile regs first; we have + * local variable space at r1+(BPF_PPC_STACK_BASIC). + * Allocate a new stack frame here to remain ABI-compliant in + * stashing LR. + */ +#define sk_negative_common(SIZE) \ + mflr r0; \ + std r0, 16(r1); \ + /* R3 goes in parameter space of caller's frame */ \ + std r_skb, (BPF_PPC_STACKFRAME+48)(r1); \ + std r_A, (BPF_PPC_STACK_BASIC+(0*8))(r1); \ + std r_X, (BPF_PPC_STACK_BASIC+(1*8))(r1); \ + stdu r1, -BPF_PPC_SLOWPATH_FRAME(r1); \ + /* R3 = r_skb, as passed */ \ + mr r4, r_addr; \ + li r5, SIZE; \ + bl bpf_internal_load_pointer_neg_helper; \ + /* R3 != 0 on success */ \ + addi r1, r1, BPF_PPC_SLOWPATH_FRAME; \ + ld r0, 16(r1); \ + ld r_A, (BPF_PPC_STACK_BASIC+(0*8))(r1); \ + ld r_X, (BPF_PPC_STACK_BASIC+(1*8))(r1); \ + mtlr r0; \ + cmpldi r3, 0; \ + beq bpf_error_slow; /* cr0 = EQ */ \ + mr r_addr, r3; \ + ld r_skb, (BPF_PPC_STACKFRAME+48)(r1); \ + /* Great success! */ + +bpf_slow_path_word_neg: + lis r_scratch1,-32 /* SKF_LL_OFF */ + cmpd r_addr, r_scratch1 /* addr < SKF_* */ + blt bpf_error /* cr0 = LT */ + .globl sk_load_word_negative_offset +sk_load_word_negative_offset: + sk_negative_common(4) + lwz r_A, 0(r_addr) + blr + +bpf_slow_path_half_neg: + lis r_scratch1,-32 /* SKF_LL_OFF */ + cmpd r_addr, r_scratch1 /* addr < SKF_* */ + blt bpf_error /* cr0 = LT */ + .globl sk_load_half_negative_offset +sk_load_half_negative_offset: + sk_negative_common(2) + lhz r_A, 0(r_addr) + blr + +bpf_slow_path_byte_neg: + lis r_scratch1,-32 /* SKF_LL_OFF */ + cmpd r_addr, r_scratch1 /* addr < SKF_* */ + blt bpf_error /* cr0 = LT */ + .globl sk_load_byte_negative_offset +sk_load_byte_negative_offset: + sk_negative_common(1) + lbz r_A, 0(r_addr) + blr + +bpf_slow_path_byte_msh_neg: + lis r_scratch1,-32 /* SKF_LL_OFF */ + cmpd r_addr, r_scratch1 /* addr < SKF_* */ + blt bpf_error /* cr0 = LT */ + .globl sk_load_byte_msh_negative_offset +sk_load_byte_msh_negative_offset: + sk_negative_common(1) + lbz r_X, 0(r_addr) + rlwinm r_X, r_X, 2, 32-4-2, 31-2 + blr + +bpf_error_slow: + /* fabricate a cr0 = lt */ + li r_scratch1, -1 + cmpdi r_scratch1, 0 +bpf_error: + /* Entered with cr0 = lt */ + li r3, 0 + /* Generated code will 'blt epilogue', returning 0. */ + blr diff --git a/arch/powerpc/net/bpf_jit_comp.c b/arch/powerpc/net/bpf_jit_comp.c index 73619d3..2dc8b14 100644 --- a/arch/powerpc/net/bpf_jit_comp.c +++ b/arch/powerpc/net/bpf_jit_comp.c @@ -127,6 +127,9 @@ static void bpf_jit_build_epilogue(u32 *image, struct codegen_context *ctx) PPC_BLR(); } +#define CHOOSE_LOAD_FUNC(K, func) \ + ((int)K < 0 ? ((int)K >= SKF_LL_OFF ? func##_negative_offset : func) : func##_positive_offset) + /* Assemble the body code between the prologue & epilogue. */ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image, struct codegen_context *ctx, @@ -391,21 +394,16 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image, /*** Absolute loads from packet header/data ***/ case BPF_S_LD_W_ABS: - func = sk_load_word; + func = CHOOSE_LOAD_FUNC(K, sk_load_word); goto common_load; case BPF_S_LD_H_ABS: - func = sk_load_half; + func = CHOOSE_LOAD_FUNC(K, sk_load_half); goto common_load; case BPF_S_LD_B_ABS: - func = sk_load_byte; + func = CHOOSE_LOAD_FUNC(K, sk_load_byte); common_load: - /* - * Load from [K]. Reference with the (negative) - * SKF_NET_OFF/SKF_LL_OFF offsets is unsupported. - */ + /* Load from [K]. */ ctx->seen |= SEEN_DATAREF; - if ((int)K < 0) - return -ENOTSUPP; PPC_LI64(r_scratch1, func); PPC_MTLR(r_scratch1); PPC_LI32(r_addr, K); @@ -429,7 +427,7 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image, common_load_ind: /* * Load from [X + K]. Negative offsets are tested for - * in the helper functions, and result in a 'ret 0'. + * in the helper functions. */ ctx->seen |= SEEN_DATAREF | SEEN_XREG; PPC_LI64(r_scratch1, func); @@ -443,13 +441,7 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image, break; case BPF_S_LDX_B_MSH: - /* - * x86 version drops packet (RET 0) when K<0, whereas - * interpreter does allow K<0 (__load_pointer, special - * ancillary data). common_load returns ENOTSUPP if K<0, - * so we fall back to interpreter & filter works. - */ - func = sk_load_byte_msh; + func = CHOOSE_LOAD_FUNC(K, sk_load_byte_msh); goto common_load; break; -- cgit v0.10.2 From 1cebce36d660c83bd1353e41f3e66abd4686f215 Mon Sep 17 00:00:00 2001 From: Yuchung Cheng Date: Mon, 30 Apr 2012 06:00:18 +0000 Subject: tcp: fix infinite cwnd in tcp_complete_cwr() When the cwnd reduction is done, ssthresh may be infinite if TCP enters CWR via ECN or F-RTO. If cwnd is not undone, i.e., undo_marker is set, tcp_complete_cwr() falsely set cwnd to the infinite ssthresh value. The correct operation is to keep cwnd intact because it has been updated in ECN or F-RTO. Signed-off-by: Yuchung Cheng Acked-by: Neal Cardwell Signed-off-by: David S. Miller diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 2a702e3..d99efd7 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -2868,11 +2868,14 @@ static inline void tcp_complete_cwr(struct sock *sk) /* Do not moderate cwnd if it's already undone in cwr or recovery. */ if (tp->undo_marker) { - if (inet_csk(sk)->icsk_ca_state == TCP_CA_CWR) + if (inet_csk(sk)->icsk_ca_state == TCP_CA_CWR) { tp->snd_cwnd = min(tp->snd_cwnd, tp->snd_ssthresh); - else /* PRR */ + tp->snd_cwnd_stamp = tcp_time_stamp; + } else if (tp->snd_ssthresh < TCP_INFINITE_SSTHRESH) { + /* PRR algorithm. */ tp->snd_cwnd = tp->snd_ssthresh; - tp->snd_cwnd_stamp = tcp_time_stamp; + tp->snd_cwnd_stamp = tcp_time_stamp; + } } tcp_ca_event(sk, CA_EVENT_COMPLETE_CWR); } -- cgit v0.10.2 From 66f2c99af3d6f2d0aa1120884cf1c60613ef61c0 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sun, 29 Apr 2012 15:44:16 +0200 Subject: mac80211: fix AP mode EAP tx for VLAN stations EAP frames for stations in an AP VLAN are sent on the main AP interface to avoid race conditions wrt. moving stations. For that to work properly, sta_info_get_bss must be used instead of sta_info_get when sending EAP packets. Previously this was only done for cooked monitor injected packets, so this patch adds a check for tx->skb->protocol to the same place. Signed-off-by: Felix Fietkau Cc: stable@vger.kernel.org Signed-off-by: John W. Linville diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 782a601..e76facc 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -1158,7 +1158,8 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata, tx->sta = rcu_dereference(sdata->u.vlan.sta); if (!tx->sta && sdata->dev->ieee80211_ptr->use_4addr) return TX_DROP; - } else if (info->flags & IEEE80211_TX_CTL_INJECTED) { + } else if (info->flags & IEEE80211_TX_CTL_INJECTED || + tx->sdata->control_port_protocol == tx->skb->protocol) { tx->sta = sta_info_get_bss(sdata, hdr->addr1); } if (!tx->sta) -- cgit v0.10.2 From 8a7dc4b04b22be285ea5bef7d01a02f91e30d562 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Mon, 30 Apr 2012 12:25:31 -0700 Subject: nfsd: fix nfs4recover.c printk format warning Fix printk format warnings -- both items are size_t, so use %zu to print them. fs/nfsd/nfs4recover.c:580:3: warning: format '%lu' expects type 'long unsigned int', but argument 3 has type 'size_t' fs/nfsd/nfs4recover.c:580:3: warning: format '%lu' expects type 'long unsigned int', but argument 4 has type 'unsigned int' Signed-off-by: Randy Dunlap Cc: "J. Bruce Fields" Cc: linux-nfs@vger.kernel.org Signed-off-by: Linus Torvalds diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c index 4767429..ed3f920 100644 --- a/fs/nfsd/nfs4recover.c +++ b/fs/nfsd/nfs4recover.c @@ -577,7 +577,7 @@ cld_pipe_downcall(struct file *filp, const char __user *src, size_t mlen) struct cld_net *cn = nn->cld_net; if (mlen != sizeof(*cmsg)) { - dprintk("%s: got %lu bytes, expected %lu\n", __func__, mlen, + dprintk("%s: got %zu bytes, expected %zu\n", __func__, mlen, sizeof(*cmsg)); return -EINVAL; } -- cgit v0.10.2 From f5c2347ee20a8d6964d6a6b1ad04f200f8d4dfa7 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Thu, 26 Apr 2012 11:45:16 -0700 Subject: asm-generic: Use __BITS_PER_LONG in statfs.h is exported to userspace, so using BITS_PER_LONG is invalid. We need to use __BITS_PER_LONG instead. This is kernel bugzilla 43165. Reported-by: H.J. Lu Signed-off-by: H. Peter Anvin Link: http://lkml.kernel.org/r/1335465916-16965-1-git-send-email-hpa@linux.intel.com Acked-by: Arnd Bergmann Cc: diff --git a/include/asm-generic/statfs.h b/include/asm-generic/statfs.h index 0fd28e0..c749af9 100644 --- a/include/asm-generic/statfs.h +++ b/include/asm-generic/statfs.h @@ -15,7 +15,7 @@ typedef __kernel_fsid_t fsid_t; * with a 10' pole. */ #ifndef __statfs_word -#if BITS_PER_LONG == 64 +#if __BITS_PER_LONG == 64 #define __statfs_word long #else #define __statfs_word __u32 -- cgit v0.10.2 From 7c77cda0fe742ed07622827ce80963bbeebd1e3f Mon Sep 17 00:00:00 2001 From: Kusanagi Kouichi Date: Sun, 1 Apr 2012 17:29:32 +0900 Subject: x86, relocs: Remove an unused variable sh_symtab is set but not used. [ hpa: putting this in urgent because of the sheer harmlessness of the patch: it quiets a build warning but does not change any generated code. ] Signed-off-by: Kusanagi Kouichi Link: http://lkml.kernel.org/r/20120401082932.D5E066FC03D@msa105.auone-net.jp Signed-off-by: H. Peter Anvin Cc: diff --git a/arch/x86/boot/compressed/relocs.c b/arch/x86/boot/compressed/relocs.c index d3c0b02..fb7117a 100644 --- a/arch/x86/boot/compressed/relocs.c +++ b/arch/x86/boot/compressed/relocs.c @@ -403,13 +403,11 @@ static void print_absolute_symbols(void) for (i = 0; i < ehdr.e_shnum; i++) { struct section *sec = &secs[i]; char *sym_strtab; - Elf32_Sym *sh_symtab; int j; if (sec->shdr.sh_type != SHT_SYMTAB) { continue; } - sh_symtab = sec->symtab; sym_strtab = sec->link->strtab; for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Sym); j++) { Elf32_Sym *sym; -- cgit v0.10.2 From 2e33caf16f7a1903d226ef7f9f5ec6a234fee18e Mon Sep 17 00:00:00 2001 From: Ashish Jangam Date: Mon, 30 Apr 2012 23:23:40 +0100 Subject: regmap: Converts group operation into single read write operations Some devices does not support bulk read and write operations, for them we have series of single write and read operations. Signed-off-by: Anthony Olech Signed-off-by: Ashish Jangam [Fixed coding style, don't check use_single_rw before assign --broonie ] Signed-off-by: Mark Brown diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h index d92e9b1..2eb7197 100644 --- a/drivers/base/regmap/internal.h +++ b/drivers/base/regmap/internal.h @@ -91,6 +91,9 @@ struct regmap { struct reg_default *patch; int patch_regs; + + /* if set, converts bulk rw to single rw */ + bool use_single_rw; }; struct regcache_ops { diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 8a25006..0a05a70 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -247,6 +247,7 @@ struct regmap *regmap_init(struct device *dev, map->reg_stride = config->reg_stride; else map->reg_stride = 1; + map->use_single_rw = config->use_single_rw; map->dev = dev; map->bus = bus; map->bus_context = bus_context; @@ -686,7 +687,22 @@ int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val, for (i = 0; i < val_count * val_bytes; i += val_bytes) map->format.parse_val(wval + i); } - ret = _regmap_raw_write(map, reg, wval, val_bytes * val_count); + /* + * Some devices does not support bulk write, for + * them we have a series of single write operations. + */ + if (map->use_single_rw) { + for (i = 0; i < val_count; i++) { + ret = regmap_raw_write(map, + reg + (i * map->reg_stride), + val + (i * val_bytes), + val_bytes); + if (ret != 0) + return ret; + } + } else { + ret = _regmap_raw_write(map, reg, wval, val_bytes * val_count); + } if (val_bytes != 1) kfree(wval); @@ -855,9 +871,25 @@ int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val, return -EINVAL; if (vol || map->cache_type == REGCACHE_NONE) { - ret = regmap_raw_read(map, reg, val, val_bytes * val_count); - if (ret != 0) - return ret; + /* + * Some devices does not support bulk read, for + * them we have a series of single read operations. + */ + if (map->use_single_rw) { + for (i = 0; i < val_count; i++) { + ret = regmap_raw_read(map, + reg + (i * map->reg_stride), + val + (i * val_bytes), + val_bytes); + if (ret != 0) + return ret; + } + } else { + ret = regmap_raw_read(map, reg, val, + val_bytes * val_count); + if (ret != 0) + return ret; + } for (i = 0; i < val_count * val_bytes; i += val_bytes) map->format.parse_val(val + i); diff --git a/include/linux/regmap.h b/include/linux/regmap.h index 0258bcd..ae797b1 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -76,6 +76,9 @@ struct reg_default { * @write_flag_mask: Mask to be set in the top byte of the register when doing * a write. If both read_flag_mask and write_flag_mask are * empty the regmap_bus default masks are used. + * @use_single_rw: If set, converts the bulk read and write operations into + * a series of single read and write operations. This is useful + * for device that does not support bulk read and write. * * @cache_type: The actual cache type. * @reg_defaults_raw: Power on reset values for registers (for use with @@ -104,6 +107,8 @@ struct regmap_config { u8 read_flag_mask; u8 write_flag_mask; + + bool use_single_rw; }; typedef int (*regmap_hw_write)(void *context, const void *data, -- cgit v0.10.2 From 7a6476143270d947924f5bbbc124accb0e558bf4 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 30 Apr 2012 23:26:32 +0100 Subject: regmap: Devices using format_write don't support bulk operations Set the use_single_rw flag for devices that use format_write() since format_write() doesn't support any form of block operation. Signed-off-by: Mark Brown diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 0a05a70..fcd69ff 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -341,6 +341,9 @@ struct regmap *regmap_init(struct device *dev, break; } + if (map->format.format_write) + map->use_single_rw = true; + if (!map->format.format_write && !(map->format.format_reg && map->format.format_val)) goto err_map; -- cgit v0.10.2 From 41b3254c93acc56adc3c4477fef7c9512d47659e Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Mon, 30 Apr 2012 16:11:29 -0400 Subject: efi: Add new variable attributes More recent versions of the UEFI spec have added new attributes for variables. Add them. Signed-off-by: Matthew Garrett Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds diff --git a/include/linux/efi.h b/include/linux/efi.h index 88ec806..ec45ccd 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -554,7 +554,18 @@ extern int __init efi_setup_pcdp_console(char *); #define EFI_VARIABLE_NON_VOLATILE 0x0000000000000001 #define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002 #define EFI_VARIABLE_RUNTIME_ACCESS 0x0000000000000004 - +#define EFI_VARIABLE_HARDWARE_ERROR_RECORD 0x0000000000000008 +#define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 0x0000000000000010 +#define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS 0x0000000000000020 +#define EFI_VARIABLE_APPEND_WRITE 0x0000000000000040 + +#define EFI_VARIABLE_MASK (EFI_VARIABLE_NON_VOLATILE | \ + EFI_VARIABLE_BOOTSERVICE_ACCESS | \ + EFI_VARIABLE_RUNTIME_ACCESS | \ + EFI_VARIABLE_HARDWARE_ERROR_RECORD | \ + EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS | \ + EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS | \ + EFI_VARIABLE_APPEND_WRITE) /* * The type of search to perform when calling boottime->locate_handle */ -- cgit v0.10.2 From fec6c20b570bcf541e581fc97f2e0cbdb9725b98 Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Mon, 30 Apr 2012 16:11:30 -0400 Subject: efi: Validate UEFI boot variables A common flaw in UEFI systems is a refusal to POST triggered by a malformed boot variable. Once in this state, machines may only be restored by reflashing their firmware with an external hardware device. While this is obviously a firmware bug, the serious nature of the outcome suggests that operating systems should filter their variable writes in order to prevent a malicious user from rendering the machine unusable. Signed-off-by: Matthew Garrett Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c index d25599f..891e467 100644 --- a/drivers/firmware/efivars.c +++ b/drivers/firmware/efivars.c @@ -191,6 +191,176 @@ utf16_strncmp(const efi_char16_t *a, const efi_char16_t *b, size_t len) } } +static bool +validate_device_path(struct efi_variable *var, int match, u8 *buffer, int len) +{ + struct efi_generic_dev_path *node; + int offset = 0; + + node = (struct efi_generic_dev_path *)buffer; + + while (offset < len) { + offset += node->length; + + if (offset > len) + return false; + + if ((node->type == EFI_DEV_END_PATH || + node->type == EFI_DEV_END_PATH2) && + node->sub_type == EFI_DEV_END_ENTIRE) + return true; + + node = (struct efi_generic_dev_path *)(buffer + offset); + } + + /* + * If we're here then either node->length pointed past the end + * of the buffer or we reached the end of the buffer without + * finding a device path end node. + */ + return false; +} + +static bool +validate_boot_order(struct efi_variable *var, int match, u8 *buffer, int len) +{ + /* An array of 16-bit integers */ + if ((len % 2) != 0) + return false; + + return true; +} + +static bool +validate_load_option(struct efi_variable *var, int match, u8 *buffer, int len) +{ + u16 filepathlength; + int i, desclength = 0; + + /* Either "Boot" or "Driver" followed by four digits of hex */ + for (i = match; i < match+4; i++) { + if (hex_to_bin(var->VariableName[i] & 0xff) < 0) + return true; + } + + /* A valid entry must be at least 6 bytes */ + if (len < 6) + return false; + + filepathlength = buffer[4] | buffer[5] << 8; + + /* + * There's no stored length for the description, so it has to be + * found by hand + */ + desclength = utf16_strsize((efi_char16_t *)(buffer + 6), len) + 2; + + /* Each boot entry must have a descriptor */ + if (!desclength) + return false; + + /* + * If the sum of the length of the description, the claimed filepath + * length and the original header are greater than the length of the + * variable, it's malformed + */ + if ((desclength + filepathlength + 6) > len) + return false; + + /* + * And, finally, check the filepath + */ + return validate_device_path(var, match, buffer + desclength + 6, + filepathlength); +} + +static bool +validate_uint16(struct efi_variable *var, int match, u8 *buffer, int len) +{ + /* A single 16-bit integer */ + if (len != 2) + return false; + + return true; +} + +static bool +validate_ascii_string(struct efi_variable *var, int match, u8 *buffer, int len) +{ + int i; + + for (i = 0; i < len; i++) { + if (buffer[i] > 127) + return false; + + if (buffer[i] == 0) + return true; + } + + return false; +} + +struct variable_validate { + char *name; + bool (*validate)(struct efi_variable *var, int match, u8 *data, + int len); +}; + +static const struct variable_validate variable_validate[] = { + { "BootNext", validate_uint16 }, + { "BootOrder", validate_boot_order }, + { "DriverOrder", validate_boot_order }, + { "Boot*", validate_load_option }, + { "Driver*", validate_load_option }, + { "ConIn", validate_device_path }, + { "ConInDev", validate_device_path }, + { "ConOut", validate_device_path }, + { "ConOutDev", validate_device_path }, + { "ErrOut", validate_device_path }, + { "ErrOutDev", validate_device_path }, + { "Timeout", validate_uint16 }, + { "Lang", validate_ascii_string }, + { "PlatformLang", validate_ascii_string }, + { "", NULL }, +}; + +static bool +validate_var(struct efi_variable *var, u8 *data, int len) +{ + int i; + u16 *unicode_name = var->VariableName; + + for (i = 0; variable_validate[i].validate != NULL; i++) { + const char *name = variable_validate[i].name; + int match; + + for (match = 0; ; match++) { + char c = name[match]; + u16 u = unicode_name[match]; + + /* All special variables are plain ascii */ + if (u > 127) + return true; + + /* Wildcard in the matching name means we've matched */ + if (c == '*') + return variable_validate[i].validate(var, + match, data, len); + + /* Case sensitive match */ + if (c != u) + break; + + /* Reached the end of the string while matching */ + if (!c) + return variable_validate[i].validate(var, + match, data, len); + } + } + + return true; +} + static efi_status_t get_var_data_locked(struct efivars *efivars, struct efi_variable *var) { @@ -324,6 +494,12 @@ efivar_store_raw(struct efivar_entry *entry, const char *buf, size_t count) return -EINVAL; } + if ((new_var->Attributes & ~EFI_VARIABLE_MASK) != 0 || + validate_var(new_var, new_var->Data, new_var->DataSize) == false) { + printk(KERN_ERR "efivars: Malformed variable content\n"); + return -EINVAL; + } + spin_lock(&efivars->lock); status = efivars->ops->set_variable(new_var->VariableName, &new_var->VendorGuid, @@ -626,6 +802,12 @@ static ssize_t efivar_create(struct file *filp, struct kobject *kobj, if (!capable(CAP_SYS_ADMIN)) return -EACCES; + if ((new_var->Attributes & ~EFI_VARIABLE_MASK) != 0 || + validate_var(new_var, new_var->Data, new_var->DataSize) == false) { + printk(KERN_ERR "efivars: Malformed variable content\n"); + return -EINVAL; + } + spin_lock(&efivars->lock); /* -- cgit v0.10.2 From 30facd4d51d630b6cba386badd7f42456962089b Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 30 Apr 2012 20:11:55 +0100 Subject: ASoC: wm8350: Don't use locally allocated codec struct The core allocates the live copies, we shouldn't try to duplicate it and were buggy trying to do so as we were using uninitialised data for the control data. Signed-off-by: Mark Brown diff --git a/sound/soc/codecs/wm8350.c b/sound/soc/codecs/wm8350.c index 8c4c959..aa12c6b 100644 --- a/sound/soc/codecs/wm8350.c +++ b/sound/soc/codecs/wm8350.c @@ -60,7 +60,7 @@ struct wm8350_jack_data { }; struct wm8350_data { - struct snd_soc_codec codec; + struct wm8350 *wm8350; struct wm8350_output out1; struct wm8350_output out2; struct wm8350_jack_data hpl; @@ -1309,7 +1309,7 @@ static void wm8350_hp_work(struct wm8350_data *priv, struct wm8350_jack_data *jack, u16 mask) { - struct wm8350 *wm8350 = priv->codec.control_data; + struct wm8350 *wm8350 = priv->wm8350; u16 reg; int report; @@ -1342,7 +1342,7 @@ static void wm8350_hpr_work(struct work_struct *work) static irqreturn_t wm8350_hp_jack_handler(int irq, void *data) { struct wm8350_data *priv = data; - struct wm8350 *wm8350 = priv->codec.control_data; + struct wm8350 *wm8350 = priv->wm8350; struct wm8350_jack_data *jack = NULL; switch (irq - wm8350->irq_base) { @@ -1427,7 +1427,7 @@ EXPORT_SYMBOL_GPL(wm8350_hp_jack_detect); static irqreturn_t wm8350_mic_handler(int irq, void *data) { struct wm8350_data *priv = data; - struct wm8350 *wm8350 = priv->codec.control_data; + struct wm8350 *wm8350 = priv->wm8350; u16 reg; int report = 0; @@ -1536,6 +1536,8 @@ static int wm8350_codec_probe(struct snd_soc_codec *codec) return -ENOMEM; snd_soc_codec_set_drvdata(codec, priv); + priv->wm8350 = wm8350; + for (i = 0; i < ARRAY_SIZE(supply_names); i++) priv->supplies[i].supply = supply_names[i]; @@ -1544,7 +1546,6 @@ static int wm8350_codec_probe(struct snd_soc_codec *codec) if (ret != 0) return ret; - wm8350->codec.codec = codec; codec->control_data = wm8350; /* Put the codec into reset if it wasn't already */ -- cgit v0.10.2 From 06412088ce98f745405b8f65cfc51ddd6b842bbf Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Heiko=20St=C3=BCbner?= Date: Mon, 30 Apr 2012 13:17:21 +0200 Subject: ASoC: s3c2412-i2s: Fix dai registration As s3c2412-i2s is using the s3c_i2sv2 it should call the more specialised s3c_i2sv2_register_dai instead of simply calling snd_soc_register_dai. Without this call the snd_soc_dai_ops structure isn't initialised correctly. Signed-off-by: Heiko Stuebner Signed-off-by: Mark Brown diff --git a/sound/soc/samsung/s3c2412-i2s.c b/sound/soc/samsung/s3c2412-i2s.c index 7218507..79fbeea 100644 --- a/sound/soc/samsung/s3c2412-i2s.c +++ b/sound/soc/samsung/s3c2412-i2s.c @@ -166,7 +166,7 @@ static struct snd_soc_dai_driver s3c2412_i2s_dai = { static __devinit int s3c2412_iis_dev_probe(struct platform_device *pdev) { - return snd_soc_register_dai(&pdev->dev, &s3c2412_i2s_dai); + return s3c_i2sv2_register_dai(&pdev->dev, -1, &s3c2412_i2s_dai); } static __devexit int s3c2412_iis_dev_remove(struct platform_device *pdev) -- cgit v0.10.2 From 7bdd305e024d78cfb4f32a1badeb5562791ee5b8 Mon Sep 17 00:00:00 2001 From: Steve Glendinning Date: Mon, 30 Apr 2012 07:56:50 +0000 Subject: smsc75xx: mark link down on startup and let PHY interrupt deal with carrier changes This patch fixes the same issue as reported on smsc95xx, where the usb device is connected with no ethernet cable plugged-in. Without this patch sysfs reports the cable as present flag@flag-desktop:~$ cat /sys/class/net/eth0/carrier 1 while it's not: flag@flag-desktop:~$ sudo mii-tool eth0 eth0: no link Signed-off-by: Steve Glendinning Signed-off-by: David S. Miller diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c index a234948..b1b4649 100644 --- a/drivers/net/usb/smsc75xx.c +++ b/drivers/net/usb/smsc75xx.c @@ -1212,7 +1212,7 @@ static const struct driver_info smsc75xx_info = { .rx_fixup = smsc75xx_rx_fixup, .tx_fixup = smsc75xx_tx_fixup, .status = smsc75xx_status, - .flags = FLAG_ETHER | FLAG_SEND_ZLP, + .flags = FLAG_ETHER | FLAG_SEND_ZLP | FLAG_LINK_INTR, }; static const struct usb_device_id products[] = { -- cgit v0.10.2 From cb8722d30c20386e4d4b4bc3a2ceceacd35f818a Mon Sep 17 00:00:00 2001 From: Steve Glendinning Date: Mon, 30 Apr 2012 07:56:51 +0000 Subject: smsc75xx: fix mdio reads and writes smsc75xx needs MII_ACCESS_BUSY to be set to correctly trigger mdio I/O. Note smsc75xx is different from smsc95xx in this regard. Signed-off-by: Stephane Fillod Signed-off-by: Steve Glendinning Signed-off-by: David S. Miller diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c index b1b4649..f97207a 100644 --- a/drivers/net/usb/smsc75xx.c +++ b/drivers/net/usb/smsc75xx.c @@ -171,7 +171,7 @@ static int smsc75xx_mdio_read(struct net_device *netdev, int phy_id, int idx) idx &= dev->mii.reg_num_mask; addr = ((phy_id << MII_ACCESS_PHY_ADDR_SHIFT) & MII_ACCESS_PHY_ADDR) | ((idx << MII_ACCESS_REG_ADDR_SHIFT) & MII_ACCESS_REG_ADDR) - | MII_ACCESS_READ; + | MII_ACCESS_READ | MII_ACCESS_BUSY; ret = smsc75xx_write_reg(dev, MII_ACCESS, addr); check_warn_goto_done(ret, "Error writing MII_ACCESS"); @@ -210,7 +210,7 @@ static void smsc75xx_mdio_write(struct net_device *netdev, int phy_id, int idx, idx &= dev->mii.reg_num_mask; addr = ((phy_id << MII_ACCESS_PHY_ADDR_SHIFT) & MII_ACCESS_PHY_ADDR) | ((idx << MII_ACCESS_REG_ADDR_SHIFT) & MII_ACCESS_REG_ADDR) - | MII_ACCESS_WRITE; + | MII_ACCESS_WRITE | MII_ACCESS_BUSY; ret = smsc75xx_write_reg(dev, MII_ACCESS, addr); check_warn_goto_done(ret, "Error writing MII_ACCESS"); -- cgit v0.10.2 From 4f49add9ad297dab392c14dc60d490364080739b Mon Sep 17 00:00:00 2001 From: Steve Glendinning Date: Mon, 30 Apr 2012 07:56:52 +0000 Subject: smsc75xx: add more information to register io failure warnings Signed-off-by: Stephane Fillod Signed-off-by: Steve Glendinning Signed-off-by: David S. Miller diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c index f97207a..1de7785 100644 --- a/drivers/net/usb/smsc75xx.c +++ b/drivers/net/usb/smsc75xx.c @@ -98,7 +98,7 @@ static int __must_check smsc75xx_read_reg(struct usbnet *dev, u32 index, if (unlikely(ret < 0)) netdev_warn(dev->net, - "Failed to read register index 0x%08x", index); + "Failed to read reg index 0x%08x: %d", index, ret); le32_to_cpus(buf); *data = *buf; @@ -128,7 +128,7 @@ static int __must_check smsc75xx_write_reg(struct usbnet *dev, u32 index, if (unlikely(ret < 0)) netdev_warn(dev->net, - "Failed to write register index 0x%08x", index); + "Failed to write reg index 0x%08x: %d", index, ret); kfree(buf); -- cgit v0.10.2 From 8a1d59d79fffdad4bb1b3b5d069da4c6c52db2e6 Mon Sep 17 00:00:00 2001 From: Steve Glendinning Date: Mon, 30 Apr 2012 07:56:53 +0000 Subject: smsc75xx: fix phy init reset loop fix bug in phy_init loop that was ignoring BMCR reset bit, akin to smsc95xx's d946092000698fd204d82a9d239103c656fb63bf Signed-off-by: Stephane Fillod Signed-off-by: Steve Glendinning Signed-off-by: David S. Miller diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c index 1de7785..cc23a58 100644 --- a/drivers/net/usb/smsc75xx.c +++ b/drivers/net/usb/smsc75xx.c @@ -661,7 +661,7 @@ static int smsc75xx_phy_initialize(struct usbnet *dev) bmcr = smsc75xx_mdio_read(dev->net, dev->mii.phy_id, MII_BMCR); check_warn_return(bmcr, "Error reading MII_BMCR"); timeout++; - } while ((bmcr & MII_BMCR) && (timeout < 100)); + } while ((bmcr & BMCR_RESET) && (timeout < 100)); if (timeout >= 100) { netdev_warn(dev->net, "timeout on PHY Reset"); -- cgit v0.10.2 From b140504aa3903feaba6f6bc77a4478a944fc12d2 Mon Sep 17 00:00:00 2001 From: Steve Glendinning Date: Mon, 30 Apr 2012 07:56:54 +0000 Subject: smsc75xx: fix phy interrupt acknowledge smsc75xx phy interrupt acknowledge needs an mdio_write to clear PHY_INT_SRC instead of just a read like in smsc95xx. Signed-off-by: Stephane Fillod Signed-off-by: Steve Glendinning Signed-off-by: David S. Miller diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c index cc23a58..4941782 100644 --- a/drivers/net/usb/smsc75xx.c +++ b/drivers/net/usb/smsc75xx.c @@ -508,9 +508,10 @@ static int smsc75xx_link_reset(struct usbnet *dev) u16 lcladv, rmtadv; int ret; - /* clear interrupt status */ + /* read and write to clear phy interrupt status */ ret = smsc75xx_mdio_read(dev->net, mii->phy_id, PHY_INT_SRC); check_warn_return(ret, "Error reading PHY_INT_SRC"); + smsc75xx_mdio_write(dev->net, mii->phy_id, PHY_INT_SRC, 0xffff); ret = smsc75xx_write_reg(dev, INT_STS, INT_STS_CLEAR_ALL); check_warn_return(ret, "Error writing INT_STS"); @@ -643,7 +644,7 @@ static int smsc75xx_set_mac_address(struct usbnet *dev) static int smsc75xx_phy_initialize(struct usbnet *dev) { - int bmcr, timeout = 0; + int bmcr, ret, timeout = 0; /* Initialize MII structure */ dev->mii.dev = dev->net; @@ -672,9 +673,10 @@ static int smsc75xx_phy_initialize(struct usbnet *dev) ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); - /* read to clear */ - smsc75xx_mdio_read(dev->net, dev->mii.phy_id, PHY_INT_SRC); - check_warn_return(bmcr, "Error reading PHY_INT_SRC"); + /* read and write to clear phy interrupt status */ + ret = smsc75xx_mdio_read(dev->net, dev->mii.phy_id, PHY_INT_SRC); + check_warn_return(ret, "Error reading PHY_INT_SRC"); + smsc75xx_mdio_write(dev->net, dev->mii.phy_id, PHY_INT_SRC, 0xffff); smsc75xx_mdio_write(dev->net, dev->mii.phy_id, PHY_INT_MASK, PHY_INT_MASK_DEFAULT); -- cgit v0.10.2 From c0b92e4d44ecaab3cd3f09f9f905306a5989b0d4 Mon Sep 17 00:00:00 2001 From: Steve Glendinning Date: Mon, 30 Apr 2012 07:56:55 +0000 Subject: smsc75xx: declare smsc75xx's MII as GMII capable also explicitly set the phy to advertise 1000 speeds Signed-off-by: Stephane Fillod Signed-off-by: Steve Glendinning Signed-off-by: David S. Miller diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c index 4941782..ae23d85 100644 --- a/drivers/net/usb/smsc75xx.c +++ b/drivers/net/usb/smsc75xx.c @@ -652,6 +652,7 @@ static int smsc75xx_phy_initialize(struct usbnet *dev) dev->mii.mdio_write = smsc75xx_mdio_write; dev->mii.phy_id_mask = 0x1f; dev->mii.reg_num_mask = 0x1f; + dev->mii.supports_gmii = 1; dev->mii.phy_id = SMSC75XX_INTERNAL_PHY_ID; /* reset phy and wait for reset to complete */ @@ -672,6 +673,8 @@ static int smsc75xx_phy_initialize(struct usbnet *dev) smsc75xx_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE, ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM); + smsc75xx_mdio_write(dev->net, dev->mii.phy_id, MII_CTRL1000, + ADVERTISE_1000FULL); /* read and write to clear phy interrupt status */ ret = smsc75xx_mdio_read(dev->net, dev->mii.phy_id, PHY_INT_SRC); -- cgit v0.10.2 From 2f3a081ea2f63cd5b3e549a0040c760d87483f99 Mon Sep 17 00:00:00 2001 From: Steve Glendinning Date: Mon, 30 Apr 2012 07:56:56 +0000 Subject: smsc75xx: enable mac to detect speed/duplex from phy This patch sets the automatic speed and duplex detection bits in MAC_CR to enable the mac to determine its speed automatically from the phy. Note this must be done BEFORE the receiver or transmitter is enabled. Signed-off-by: Stephane Fillod Signed-off-by: Steve Glendinning Signed-off-by: David S. Miller diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c index ae23d85..00103a8 100644 --- a/drivers/net/usb/smsc75xx.c +++ b/drivers/net/usb/smsc75xx.c @@ -951,6 +951,14 @@ static int smsc75xx_reset(struct usbnet *dev) ret = smsc75xx_write_reg(dev, INT_EP_CTL, buf); check_warn_return(ret, "Failed to write INT_EP_CTL: %d", ret); + /* allow mac to detect speed and duplex from phy */ + ret = smsc75xx_read_reg(dev, MAC_CR, &buf); + check_warn_return(ret, "Failed to read MAC_CR: %d", ret); + + buf |= (MAC_CR_ADD | MAC_CR_ASD); + ret = smsc75xx_write_reg(dev, MAC_CR, buf); + check_warn_return(ret, "Failed to write MAC_CR: %d", ret); + ret = smsc75xx_read_reg(dev, MAC_TX, &buf); check_warn_return(ret, "Failed to read MAC_TX: %d", ret); -- cgit v0.10.2 From 9bd1be457d2b9568c3c8f8f6b8e450a501bff402 Mon Sep 17 00:00:00 2001 From: Samuel Liao Date: Fri, 27 Apr 2012 17:09:27 +0000 Subject: igbvf: fix the bug when initializing the igbvf Maybe it's a typo, but it cause that igbvf can't be initialized successfully. Set perm_addr value using valid dev_addr, although which is equal to hw.mac.addr. Signed-off-by: Samuel Liao Signed-off-by: Shan Wei Signed-off-by: Jeff Kirsher diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c index d61ca2a..8ec74b0 100644 --- a/drivers/net/ethernet/intel/igbvf/netdev.c +++ b/drivers/net/ethernet/intel/igbvf/netdev.c @@ -2731,14 +2731,14 @@ static int __devinit igbvf_probe(struct pci_dev *pdev, netdev->addr_len); } - if (!is_valid_ether_addr(netdev->perm_addr)) { + if (!is_valid_ether_addr(netdev->dev_addr)) { dev_err(&pdev->dev, "Invalid MAC Address: %pM\n", netdev->dev_addr); err = -EIO; goto err_hw_init; } - memcpy(netdev->perm_addr, adapter->hw.mac.addr, netdev->addr_len); + memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len); setup_timer(&adapter->watchdog_timer, &igbvf_watchdog, (unsigned long) adapter); -- cgit v0.10.2 From 2b1588c3fafc3fd2b3bc49202a380eaecbbc2193 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Sat, 17 Mar 2012 02:39:16 +0000 Subject: ixgbe: Fix a memory leak in IEEE DCB The driver was freeing memory in shutdown instead of remove. As a result we were leaking memory if IEEE DCB was enabled and we loaded/unloaded the driver. This change moves the freeing of the memory into the remove routine where it belongs. Signed-off-by: Alexander Duyck Acked-by: John Fastabend Tested-by: Ross Brattain Signed-off-by: Jeff Kirsher diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index a7f3cd8..88f6b2e 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -4873,10 +4873,6 @@ static int __ixgbe_shutdown(struct pci_dev *pdev, bool *enable_wake) } ixgbe_clear_interrupt_scheme(adapter); -#ifdef CONFIG_DCB - kfree(adapter->ixgbe_ieee_pfc); - kfree(adapter->ixgbe_ieee_ets); -#endif #ifdef CONFIG_PM retval = pci_save_state(pdev); @@ -7224,6 +7220,11 @@ static void __devexit ixgbe_remove(struct pci_dev *pdev) ixgbe_release_hw_control(adapter); +#ifdef CONFIG_DCB + kfree(adapter->ixgbe_ieee_pfc); + kfree(adapter->ixgbe_ieee_ets); + +#endif iounmap(adapter->hw.hw_addr); pci_release_selected_regions(pdev, pci_select_bars(pdev, IORESOURCE_MEM)); -- cgit v0.10.2 From 441e1719f21356ef84d2debc6ca3e6d07e6c8889 Mon Sep 17 00:00:00 2001 From: Yi Zou Date: Fri, 20 Apr 2012 05:48:08 +0000 Subject: ixgbe: fix calling skb_put on nonlinear skb assertion bug With the support to bounce buffer added, the skb is coming as nonlinear in the case of non-DDPed data frames for FCoE, which is mostly ok as the FCoE stack would take care of that. However, for target mode, we have to set the FC CRC and FC EOF field to allow the protocol stack to not drop the frame for the last data frame of that sequence. So fix this by linearizing the skb first before doing skb_put(). Signed-off-by: Yi Zou Tested-by: Marcus Dennis Signed-off-by: Jeff Kirsher diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c index 77ea4b7..bc07933 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c @@ -437,6 +437,7 @@ int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter, */ if ((fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA) && (fctl & FC_FC_END_SEQ)) { + skb_linearize(skb); crc = (struct fcoe_crc_eof *)skb_put(skb, sizeof(*crc)); crc->fcoe_eof = FC_EOF_T; } -- cgit v0.10.2 From 60158e64641fd8c780a6d14de2bf42aabc419916 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Mon, 30 Apr 2012 07:15:47 +0000 Subject: cxgb3: Don't call cxgb_vlan_mode until q locks are initialized The driver calls cxgb_vlan_mode() from init_one(). This calls into synchronize_rx(), which locks all the q locks, but the q locks are not initialized until cxgb_up() -> setup_sge_qsets(). So move the call to cxgb_vlan_mode() into cxgb_up(), after the call to setup_sge_qsets(). We also move the body of these functions up higher to avoid having to a forward declaration. This was found because of the lockdep warning: INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. Pid: 323, comm: work_for_cpu Not tainted 3.4.0-rc5 #28 Call Trace: [] register_lock_class+0x108/0x2d0 [] __lock_acquire+0xd3/0xd06 [] lock_acquire+0xbf/0xfe [] _raw_spin_lock_irq+0x36/0x45 [] cxgb_vlan_mode+0x96/0xcb [cxgb3] [] init_one+0x8c4/0x980 [cxgb3] [] local_pci_probe+0x3f/0x70 [] do_work_for_cpu+0x10/0x22 [] kthread+0xa1/0xa9 [] kernel_thread_helper+0x4/0x10 Contrary to what lockdep says, the code is not fine: we are locking an uninitialized spinlock. Signed-off-by: Roland Dreier Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c index 63bfdd1..abb6ce7 100644 --- a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c +++ b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c @@ -1150,6 +1150,48 @@ release_tpsram: } /** + * t3_synchronize_rx - wait for current Rx processing on a port to complete + * @adap: the adapter + * @p: the port + * + * Ensures that current Rx processing on any of the queues associated with + * the given port completes before returning. We do this by acquiring and + * releasing the locks of the response queues associated with the port. + */ +static void t3_synchronize_rx(struct adapter *adap, const struct port_info *p) +{ + int i; + + for (i = p->first_qset; i < p->first_qset + p->nqsets; i++) { + struct sge_rspq *q = &adap->sge.qs[i].rspq; + + spin_lock_irq(&q->lock); + spin_unlock_irq(&q->lock); + } +} + +static void cxgb_vlan_mode(struct net_device *dev, netdev_features_t features) +{ + struct port_info *pi = netdev_priv(dev); + struct adapter *adapter = pi->adapter; + + if (adapter->params.rev > 0) { + t3_set_vlan_accel(adapter, 1 << pi->port_id, + features & NETIF_F_HW_VLAN_RX); + } else { + /* single control for all ports */ + unsigned int i, have_vlans = features & NETIF_F_HW_VLAN_RX; + + for_each_port(adapter, i) + have_vlans |= + adapter->port[i]->features & NETIF_F_HW_VLAN_RX; + + t3_set_vlan_accel(adapter, 1, have_vlans); + } + t3_synchronize_rx(adapter, pi); +} + +/** * cxgb_up - enable the adapter * @adapter: adapter being enabled * @@ -1161,7 +1203,7 @@ release_tpsram: */ static int cxgb_up(struct adapter *adap) { - int err; + int i, err; if (!(adap->flags & FULL_INIT_DONE)) { err = t3_check_fw_version(adap); @@ -1198,6 +1240,9 @@ static int cxgb_up(struct adapter *adap) if (err) goto out; + for_each_port(adap, i) + cxgb_vlan_mode(adap->port[i], adap->port[i]->features); + setup_rss(adap); if (!(adap->flags & NAPI_INIT)) init_napi(adap); @@ -2508,48 +2553,6 @@ static int cxgb_set_mac_addr(struct net_device *dev, void *p) return 0; } -/** - * t3_synchronize_rx - wait for current Rx processing on a port to complete - * @adap: the adapter - * @p: the port - * - * Ensures that current Rx processing on any of the queues associated with - * the given port completes before returning. We do this by acquiring and - * releasing the locks of the response queues associated with the port. - */ -static void t3_synchronize_rx(struct adapter *adap, const struct port_info *p) -{ - int i; - - for (i = p->first_qset; i < p->first_qset + p->nqsets; i++) { - struct sge_rspq *q = &adap->sge.qs[i].rspq; - - spin_lock_irq(&q->lock); - spin_unlock_irq(&q->lock); - } -} - -static void cxgb_vlan_mode(struct net_device *dev, netdev_features_t features) -{ - struct port_info *pi = netdev_priv(dev); - struct adapter *adapter = pi->adapter; - - if (adapter->params.rev > 0) { - t3_set_vlan_accel(adapter, 1 << pi->port_id, - features & NETIF_F_HW_VLAN_RX); - } else { - /* single control for all ports */ - unsigned int i, have_vlans = features & NETIF_F_HW_VLAN_RX; - - for_each_port(adapter, i) - have_vlans |= - adapter->port[i]->features & NETIF_F_HW_VLAN_RX; - - t3_set_vlan_accel(adapter, 1, have_vlans); - } - t3_synchronize_rx(adapter, pi); -} - static netdev_features_t cxgb_fix_features(struct net_device *dev, netdev_features_t features) { @@ -3353,9 +3356,6 @@ static int __devinit init_one(struct pci_dev *pdev, err = sysfs_create_group(&adapter->port[0]->dev.kobj, &cxgb3_attr_group); - for_each_port(adapter, i) - cxgb_vlan_mode(adapter->port[i], adapter->port[i]->features); - print_port_info(adapter, ai); return 0; -- cgit v0.10.2 From 13176a89e1c4a0011bd9f576730b0338ecb619ff Mon Sep 17 00:00:00 2001 From: Russ Dill Date: Sun, 22 Apr 2012 01:48:18 -0700 Subject: mfd: Fix build breakage in omap-usb-host.c 'ARM: OMAP3: USB: Fix the EHCI ULPI PHY reset issue' removes the include for linux/gpio.h from omap-usb-host.c. This include indirectly includes plat/cpu.h which is required by omap-usb-host.c. Fix the build breakage by including it directly. Acked-by: Keshava Munegowda Acked-by: Kevin Hilman Tested-by: Arend van Spriel Signed-off-by: Russ Dill Signed-off-by: Samuel Ortiz diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c index c8aae66..7e96bb2 100644 --- a/drivers/mfd/omap-usb-host.c +++ b/drivers/mfd/omap-usb-host.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include -- cgit v0.10.2 From 5158ba3ea7fc8c3deafec769a32bc6eb869c3608 Mon Sep 17 00:00:00 2001 From: Russ Dill Date: Mon, 23 Apr 2012 19:43:00 -0700 Subject: ktest.pl: Fix combined usage of BISECT_REVERSE and BISECT_SKIP When BISECT_REVERSE and BISECT_SKIP are used together with boot or test testing, build failures are treated as boot or test failures and 'git bisect bad' is executed instead of 'git bisect skip'. This is because the $ret value of -1 is treated as a build failure, but the $reverse_bisect logic does not properly handle this. Simple fix, only invert it if it is positive. Link: http://lkml.kernel.org/r/1335235380-8509-1-git-send-email-Russ.Dill@ti.com Signed-off-by: Russ Dill Signed-off-by: Steven Rostedt diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl index 95d6a6f..d2ede59 100755 --- a/tools/testing/ktest/ktest.pl +++ b/tools/testing/ktest/ktest.pl @@ -2192,7 +2192,7 @@ sub run_bisect { } # Are we looking for where it worked, not failed? - if ($reverse_bisect) { + if ($reverse_bisect && $ret >= 0) { $ret = !$ret; } -- cgit v0.10.2 From 759a3cc625e77161ae457459489178dd0921524e Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Tue, 1 May 2012 08:20:12 -0400 Subject: ktest: Fix reboot on success stopping all reboots The change to let individual tests decide to reboot the machine on success of the entire test also prevented errors from rebooting when an error was detected. The "no_reboot" variable was only cleared if the test had reboot_on_success set. But the no_reboot variable also prevents the test rebooting when an error was detected even when REBOOT_ON_ERROR was set. Add a new "reboot_success" variable that is used to determine if the test should reboot on success and not touch the no_reboot variable. Signed-off-by: Steven Rostedt diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl index d2ede59..4915408 100755 --- a/tools/testing/ktest/ktest.pl +++ b/tools/testing/ktest/ktest.pl @@ -183,6 +183,9 @@ my %force_config; # do not force reboots on config problems my $no_reboot = 1; +# reboot on success +my $reboot_success = 0; + my %option_map = ( "MACHINE" => \$machine, "SSH_USER" => \$ssh_user, @@ -3469,6 +3472,7 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) { # Do not reboot on failing test options $no_reboot = 1; + $reboot_success = 0; $iteration = $i; @@ -3554,9 +3558,11 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) { die "failed to checkout $checkout"; } + $no_reboot = 0; + # A test may opt to not reboot the box if ($reboot_on_success) { - $no_reboot = 0; + $reboot_success = 1; } if ($test_type eq "bisect") { @@ -3600,7 +3606,7 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) { if ($opt{"POWEROFF_ON_SUCCESS"}) { halt; -} elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot) { +} elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot && $reboot_success) { reboot_to_good; } elsif (defined($switch_to_good)) { # still need to get to the good kernel -- cgit v0.10.2 From d961949660fa1c1b7eb0c3a3c157989c90f14e8e Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 30 Apr 2012 21:29:16 +0000 Subject: net: fix two typos in skbuff.h fix kernel doc typos in function names Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 775292a..111f26b 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -1020,7 +1020,7 @@ static inline void skb_queue_splice(const struct sk_buff_head *list, } /** - * skb_queue_splice - join two skb lists and reinitialise the emptied list + * skb_queue_splice_init - join two skb lists and reinitialise the emptied list * @list: the new list to add * @head: the place to add it in the first list * @@ -1051,7 +1051,7 @@ static inline void skb_queue_splice_tail(const struct sk_buff_head *list, } /** - * skb_queue_splice_tail - join two skb lists and reinitialise the emptied list + * skb_queue_splice_tail_init - join two skb lists and reinitialise the emptied list * @list: the new list to add * @head: the place to add it in the first list * -- cgit v0.10.2 From b704871124b477807966f06789c2b32f2de58bf7 Mon Sep 17 00:00:00 2001 From: "Kirill A. Shutemov" Date: Mon, 30 Apr 2012 09:18:01 -0400 Subject: hwmon: (coretemp) fix oops on cpu unplug coretemp tries to access core_data array beyond bounds on cpu unplug if core id of the cpu if more than NUM_REAL_CORES-1. BUG: unable to handle kernel NULL pointer dereference at 000000000000013c IP: [] coretemp_cpu_callback+0x93/0x1ba [coretemp] PGD 673e5a067 PUD 66e9b3067 PMD 0 Oops: 0000 [#1] SMP CPU 79 Modules linked in: sunrpc cpufreq_ondemand acpi_cpufreq freq_table mperf bnep bluetooth rfkill ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter nf_conntrack_ipv4 nf_defrag_ipv4 ip6_tables xt_state nf_conntrack coretemp crc32c_intel asix tpm_tis pcspkr usbnet iTCO_wdt i2c_i801 microcode mii joydev tpm i2c_core iTCO_vendor_support tpm_bios i7core_edac igb ioatdma edac_core dca megaraid_sas [last unloaded: oprofile] Pid: 3315, comm: set-cpus Tainted: G W 3.4.0-rc5+ #2 QCI QSSC-S4R/QSSC-S4R RIP: 0010:[] [] coretemp_cpu_callback+0x93/0x1ba [coretemp] RSP: 0018:ffff880472fb3d48 EFLAGS: 00010246 RAX: 0000000000000124 RBX: 0000000000000034 RCX: 00000000ffffffff RDX: 0000000000000000 RSI: 0000000000000046 RDI: 0000000000000246 RBP: ffff880472fb3d88 R08: ffff88077fcd36c0 R09: 0000000000000001 R10: ffffffff8184bc48 R11: 0000000000000000 R12: ffff880273095800 R13: 0000000000000013 R14: ffff8802730a1810 R15: 0000000000000000 FS: 00007f694a20f720(0000) GS:ffff88077fcc0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 000000000000013c CR3: 000000067209b000 CR4: 00000000000007e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process set-cpus (pid: 3315, threadinfo ffff880472fb2000, task ffff880471fa0000) Stack: ffff880277b4c308 0000000000000003 ffff880472fb3d88 0000000000000005 0000000000000034 00000000ffffffd1 ffffffff81cadc70 ffff880472fb3e14 ffff880472fb3dc8 ffffffff8161f48d ffff880471fa0000 0000000000000034 Call Trace: [] notifier_call_chain+0x4d/0x70 [] __raw_notifier_call_chain+0xe/0x10 [] __cpu_notify+0x20/0x40 [] _cpu_down+0x81/0x270 [] cpu_down+0x37/0x50 [] store_online+0x63/0xc0 [] dev_attr_store+0x18/0x30 [] sysfs_write_file+0xef/0x170 [] vfs_write+0xb3/0x180 [] sys_write+0x4a/0x90 [] system_call_fastpath+0x16/0x1b Code: 48 c7 c7 94 60 01 a0 44 0f b7 ac 10 ac 00 00 00 31 c0 e8 41 b7 5f e1 41 83 c5 02 49 63 c5 49 8b 44 c4 10 48 85 c0 74 56 45 31 ff <39> 58 18 75 4e eb 1f 49 63 d7 4c 89 f7 48 89 45 c8 48 6b d2 28 RIP [] coretemp_cpu_callback+0x93/0x1ba [coretemp] RSP CR2: 000000000000013c Signed-off-by: Kirill A. Shutemov Cc: stable@vger.kernel.org # 3.0+ Signed-off-by: Guenter Roeck diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c index 0d3141f..54a70fe 100644 --- a/drivers/hwmon/coretemp.c +++ b/drivers/hwmon/coretemp.c @@ -709,6 +709,10 @@ static void __cpuinit put_core_offline(unsigned int cpu) indx = TO_ATTR_NO(cpu); + /* The core id is too big, just return */ + if (indx > MAX_CORE_DATA - 1) + return; + if (pdata->core_data[indx] && pdata->core_data[indx]->cpu == cpu) coretemp_remove_core(pdata, &pdev->dev, indx); -- cgit v0.10.2 From bdc71c9a87b898e4c380c23b2e3e18071312ecde Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Tue, 1 May 2012 08:15:42 -0700 Subject: hwmon: (coretemp) Increase CPU core limit CPU core ID is used to index the core_data[] array. The core ID is, however, not sequential; 10-core CPUS can have a core ID as high as 25. Increase the limit to 32 to be able to deal with current CPUs. Signed-off-by: Guenter Roeck Cc: stable@vger.kernel.org # 3.0+ Acked-by: Jean Delvare Acked-by: Durgadoss R diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c index 54a70fe..b9d5123 100644 --- a/drivers/hwmon/coretemp.c +++ b/drivers/hwmon/coretemp.c @@ -52,7 +52,7 @@ module_param_named(tjmax, force_tjmax, int, 0444); MODULE_PARM_DESC(tjmax, "TjMax value in degrees Celsius"); #define BASE_SYSFS_ATTR_NO 2 /* Sysfs Base attr no for coretemp */ -#define NUM_REAL_CORES 16 /* Number of Real cores per cpu */ +#define NUM_REAL_CORES 32 /* Number of Real cores per cpu */ #define CORETEMP_NAME_LENGTH 17 /* String Length of attrs */ #define MAX_CORE_ATTRS 4 /* Maximum no of basic attrs */ #define TOTAL_ATTRS (MAX_CORE_ATTRS + 1) -- cgit v0.10.2 From 3f42941b5d1d13542b1a755a9e4f633aa72e4d3e Mon Sep 17 00:00:00 2001 From: stephen hemminger Date: Mon, 30 Apr 2012 05:49:45 +0000 Subject: sky2: propogate rx hash when packet is copied When a small packet is received, the driver copies it to a new skb to allow reusing the full size Rx buffer. The copy was propogating the checksum offload but not the receive hash information. The bug is impact was mostly harmless and therefore not observed until reviewing this area of code. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c index c9b504e..0ced311 100644 --- a/drivers/net/ethernet/marvell/sky2.c +++ b/drivers/net/ethernet/marvell/sky2.c @@ -2494,8 +2494,11 @@ static struct sk_buff *receive_copy(struct sky2_port *sky2, skb_copy_from_linear_data(re->skb, skb->data, length); skb->ip_summed = re->skb->ip_summed; skb->csum = re->skb->csum; + skb->rxhash = re->skb->rxhash; + pci_dma_sync_single_for_device(sky2->hw->pdev, re->data_addr, length, PCI_DMA_FROMDEVICE); + re->skb->rxhash = 0; re->skb->ip_summed = CHECKSUM_NONE; skb_put(skb, length); } -- cgit v0.10.2 From e072b3fad5f3915102c94628b4971f52ff99dd05 Mon Sep 17 00:00:00 2001 From: stephen hemminger Date: Mon, 30 Apr 2012 06:47:37 +0000 Subject: sky2: fix receive length error in mixed non-VLAN/VLAN traffic Bug: The VLAN bit of the MAC RX Status Word is unreliable in several older supported chips. Sometimes the VLAN bit is not set for valid VLAN packets and also sometimes the VLAN bit is set for non-VLAN packets that came after a VLAN packet. This results in a receive length error when VLAN hardware tagging is enabled. Fix: Variation on original fix proposed by Mirko. The VLAN information is decoded in the status loop, and can be applied to the received SKB there. This eliminates the need for the separate tag field in the interface data structure. The tag has to be copied and cleared if packet is copied. This version checked out with vlan and normal traffic. Note: vlan_tx_tag_present should be renamed vlan_tag_present, but that is outside scope of this. Reported-by: Mirko Lindner Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c index 0ced311..487a6c8 100644 --- a/drivers/net/ethernet/marvell/sky2.c +++ b/drivers/net/ethernet/marvell/sky2.c @@ -2495,9 +2495,11 @@ static struct sk_buff *receive_copy(struct sky2_port *sky2, skb->ip_summed = re->skb->ip_summed; skb->csum = re->skb->csum; skb->rxhash = re->skb->rxhash; + skb->vlan_tci = re->skb->vlan_tci; pci_dma_sync_single_for_device(sky2->hw->pdev, re->data_addr, length, PCI_DMA_FROMDEVICE); + re->skb->vlan_tci = 0; re->skb->rxhash = 0; re->skb->ip_summed = CHECKSUM_NONE; skb_put(skb, length); @@ -2583,9 +2585,6 @@ static struct sk_buff *sky2_receive(struct net_device *dev, struct sk_buff *skb = NULL; u16 count = (status & GMR_FS_LEN) >> 16; - if (status & GMR_FS_VLAN) - count -= VLAN_HLEN; /* Account for vlan tag */ - netif_printk(sky2, rx_status, KERN_DEBUG, dev, "rx slot %u status 0x%x len %d\n", sky2->rx_next, status, length); @@ -2593,6 +2592,9 @@ static struct sk_buff *sky2_receive(struct net_device *dev, sky2->rx_next = (sky2->rx_next + 1) % sky2->rx_pending; prefetch(sky2->rx_ring + sky2->rx_next); + if (vlan_tx_tag_present(re->skb)) + count -= VLAN_HLEN; /* Account for vlan tag */ + /* This chip has hardware problems that generates bogus status. * So do only marginal checking and expect higher level protocols * to handle crap frames. @@ -2650,11 +2652,8 @@ static inline void sky2_tx_done(struct net_device *dev, u16 last) } static inline void sky2_skb_rx(const struct sky2_port *sky2, - u32 status, struct sk_buff *skb) + struct sk_buff *skb) { - if (status & GMR_FS_VLAN) - __vlan_hwaccel_put_tag(skb, be16_to_cpu(sky2->rx_tag)); - if (skb->ip_summed == CHECKSUM_NONE) netif_receive_skb(skb); else @@ -2708,6 +2707,14 @@ static void sky2_rx_checksum(struct sky2_port *sky2, u32 status) } } +static void sky2_rx_tag(struct sky2_port *sky2, u16 length) +{ + struct sk_buff *skb; + + skb = sky2->rx_ring[sky2->rx_next].skb; + __vlan_hwaccel_put_tag(skb, be16_to_cpu(length)); +} + static void sky2_rx_hash(struct sky2_port *sky2, u32 status) { struct sk_buff *skb; @@ -2766,8 +2773,7 @@ static int sky2_status_intr(struct sky2_hw *hw, int to_do, u16 idx) } skb->protocol = eth_type_trans(skb, dev); - - sky2_skb_rx(sky2, status, skb); + sky2_skb_rx(sky2, skb); /* Stop after net poll weight */ if (++work_done >= to_do) @@ -2775,11 +2781,11 @@ static int sky2_status_intr(struct sky2_hw *hw, int to_do, u16 idx) break; case OP_RXVLAN: - sky2->rx_tag = length; + sky2_rx_tag(sky2, length); break; case OP_RXCHKSVLAN: - sky2->rx_tag = length; + sky2_rx_tag(sky2, length); /* fall through */ case OP_RXCHKS: if (likely(dev->features & NETIF_F_RXCSUM)) diff --git a/drivers/net/ethernet/marvell/sky2.h b/drivers/net/ethernet/marvell/sky2.h index ff6f58b..3c896ce 100644 --- a/drivers/net/ethernet/marvell/sky2.h +++ b/drivers/net/ethernet/marvell/sky2.h @@ -2241,7 +2241,6 @@ struct sky2_port { u16 rx_pending; u16 rx_data_size; u16 rx_nfrags; - u16 rx_tag; struct { unsigned long last; -- cgit v0.10.2 From 116a0fc31c6c9b8fc821be5a96e5bf0b43260131 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sun, 29 Apr 2012 09:08:22 +0000 Subject: netem: fix possible skb leak skb_checksum_help(skb) can return an error, we must free skb in this case. qdisc_drop(skb, sch) can also be feeded with a NULL skb (if skb_unshare() failed), so lets use this generic helper. Signed-off-by: Eric Dumazet Cc: Stephen Hemminger Signed-off-by: David S. Miller diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c index 5da548f..ebd2296 100644 --- a/net/sched/sch_netem.c +++ b/net/sched/sch_netem.c @@ -408,10 +408,8 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch) if (q->corrupt && q->corrupt >= get_crandom(&q->corrupt_cor)) { if (!(skb = skb_unshare(skb, GFP_ATOMIC)) || (skb->ip_summed == CHECKSUM_PARTIAL && - skb_checksum_help(skb))) { - sch->qstats.drops++; - return NET_XMIT_DROP; - } + skb_checksum_help(skb))) + return qdisc_drop(skb, sch); skb->data[net_random() % skb_headlen(skb)] ^= 1<<(net_random() % 8); } -- cgit v0.10.2 From 84f904ecd3aa2ccb5779b815b69c1cb592f07bb5 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Tue, 1 May 2012 16:12:19 +0100 Subject: vt: Fix deadlock on scroll-lock Fixing the locking accidentally replaced a race in the scroll lock handling with a deadlock. Turn it back into a race for now. The basic problem is that there are two paths into the tty stop/start helpers. One via the tty layer ^S/^Q handling where we need to take the kbd_event_lock and one via the special keyboard handler for fn_hold where we already hold it. Probably we need to split out into a separate LED lock but for now just go back to the race as it's a bit close to release. Reported-by: Clemens Ladisch Cc: Jiri Kosina Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c index 86dd1e3..29ca20d 100644 --- a/drivers/tty/vt/keyboard.c +++ b/drivers/tty/vt/keyboard.c @@ -1085,15 +1085,21 @@ void vt_set_led_state(int console, int leds) * * Handle console start. This is a wrapper for the VT layer * so that we can keep kbd knowledge internal + * + * FIXME: We eventually need to hold the kbd lock here to protect + * the LED updating. We can't do it yet because fn_hold calls stop_tty + * and start_tty under the kbd_event_lock, while normal tty paths + * don't hold the lock. We probably need to split out an LED lock + * but not during an -rc release! */ void vt_kbd_con_start(int console) { struct kbd_struct * kbd = kbd_table + console; - unsigned long flags; - spin_lock_irqsave(&kbd_event_lock, flags); +/* unsigned long flags; */ +/* spin_lock_irqsave(&kbd_event_lock, flags); */ clr_vc_kbd_led(kbd, VC_SCROLLOCK); set_leds(); - spin_unlock_irqrestore(&kbd_event_lock, flags); +/* spin_unlock_irqrestore(&kbd_event_lock, flags); */ } /** @@ -1102,22 +1108,28 @@ void vt_kbd_con_start(int console) * * Handle console stop. This is a wrapper for the VT layer * so that we can keep kbd knowledge internal + * + * FIXME: We eventually need to hold the kbd lock here to protect + * the LED updating. We can't do it yet because fn_hold calls stop_tty + * and start_tty under the kbd_event_lock, while normal tty paths + * don't hold the lock. We probably need to split out an LED lock + * but not during an -rc release! */ void vt_kbd_con_stop(int console) { struct kbd_struct * kbd = kbd_table + console; - unsigned long flags; - spin_lock_irqsave(&kbd_event_lock, flags); +/* unsigned long flags; */ +/* spin_lock_irqsave(&kbd_event_lock, flags); */ set_vc_kbd_led(kbd, VC_SCROLLOCK); set_leds(); - spin_unlock_irqrestore(&kbd_event_lock, flags); +/* spin_unlock_irqrestore(&kbd_event_lock, flags); */ } /* * This is the tasklet that updates LED state on all keyboards * attached to the box. The reason we use tasklet is that we * need to handle the scenario when keyboard handler is not - * registered yet but we already getting updates form VT to + * registered yet but we already getting updates from the VT to * update led state. */ static void kbd_bh(unsigned long dummy) -- cgit v0.10.2 From ebf20de453042c066a289b90dd14d59de03dba2f Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Tue, 1 May 2012 11:28:49 -0400 Subject: EHCI: update PM methods in ehci-tegra.c This patch (as1547) rearranges the Power Management parts of the ehci-tegra driver to match the conventions used in other EHCI platform drivers. In particular, the controller should not be powered down by the root hub's suspend routine; the controller's power level should be managed by the controller's own PM methods. The end result of the patch is that the standard ehci_bus_suspend() and ehci_bus_resume() methods can be used instead of special-purpose routines. The driver now uses the standard dev_pm_ops methods instead of legacy power management. Since there is no supported wakeup mechanism for the controller, runtime suspend is forbidden by default (this can be overridden via sysfs, if desired). These adjustments are needed in order to make ehci-tegra compatible with recent changes to the USB core. The core now checks the root hub's status following bus suspend; if the controller is automatically powered down during bus suspend then the check will fail and the root hub will be resumed immediately. Doing the controller power-down in a separate method avoids this problem. Signed-off-by: Alan Stern Acked-by: Stephen Warren Tested-by: Stephen Warren Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index 8618336..73f3525 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include @@ -37,9 +38,7 @@ struct tegra_ehci_hcd { struct clk *emc_clk; struct usb_phy *transceiver; int host_resumed; - int bus_suspended; int port_resuming; - int power_down_on_bus_suspend; enum tegra_usb_phy_port_speed port_speed; }; @@ -273,120 +272,6 @@ static void tegra_ehci_restart(struct usb_hcd *hcd) up_write(&ehci_cf_port_reset_rwsem); } -static int tegra_usb_suspend(struct usb_hcd *hcd) -{ - struct tegra_ehci_hcd *tegra = dev_get_drvdata(hcd->self.controller); - struct ehci_regs __iomem *hw = tegra->ehci->regs; - unsigned long flags; - - spin_lock_irqsave(&tegra->ehci->lock, flags); - - tegra->port_speed = (readl(&hw->port_status[0]) >> 26) & 0x3; - ehci_halt(tegra->ehci); - clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); - - spin_unlock_irqrestore(&tegra->ehci->lock, flags); - - tegra_ehci_power_down(hcd); - return 0; -} - -static int tegra_usb_resume(struct usb_hcd *hcd) -{ - struct tegra_ehci_hcd *tegra = dev_get_drvdata(hcd->self.controller); - struct ehci_hcd *ehci = hcd_to_ehci(hcd); - struct ehci_regs __iomem *hw = ehci->regs; - unsigned long val; - - set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); - tegra_ehci_power_up(hcd); - - if (tegra->port_speed > TEGRA_USB_PHY_PORT_SPEED_HIGH) { - /* Wait for the phy to detect new devices - * before we restart the controller */ - msleep(10); - goto restart; - } - - /* Force the phy to keep data lines in suspend state */ - tegra_ehci_phy_restore_start(tegra->phy, tegra->port_speed); - - /* Enable host mode */ - tdi_reset(ehci); - - /* Enable Port Power */ - val = readl(&hw->port_status[0]); - val |= PORT_POWER; - writel(val, &hw->port_status[0]); - udelay(10); - - /* Check if the phy resume from LP0. When the phy resume from LP0 - * USB register will be reset. */ - if (!readl(&hw->async_next)) { - /* Program the field PTC based on the saved speed mode */ - val = readl(&hw->port_status[0]); - val &= ~PORT_TEST(~0); - if (tegra->port_speed == TEGRA_USB_PHY_PORT_SPEED_HIGH) - val |= PORT_TEST_FORCE; - else if (tegra->port_speed == TEGRA_USB_PHY_PORT_SPEED_FULL) - val |= PORT_TEST(6); - else if (tegra->port_speed == TEGRA_USB_PHY_PORT_SPEED_LOW) - val |= PORT_TEST(7); - writel(val, &hw->port_status[0]); - udelay(10); - - /* Disable test mode by setting PTC field to NORMAL_OP */ - val = readl(&hw->port_status[0]); - val &= ~PORT_TEST(~0); - writel(val, &hw->port_status[0]); - udelay(10); - } - - /* Poll until CCS is enabled */ - if (handshake(ehci, &hw->port_status[0], PORT_CONNECT, - PORT_CONNECT, 2000)) { - pr_err("%s: timeout waiting for PORT_CONNECT\n", __func__); - goto restart; - } - - /* Poll until PE is enabled */ - if (handshake(ehci, &hw->port_status[0], PORT_PE, - PORT_PE, 2000)) { - pr_err("%s: timeout waiting for USB_PORTSC1_PE\n", __func__); - goto restart; - } - - /* Clear the PCI status, to avoid an interrupt taken upon resume */ - val = readl(&hw->status); - val |= STS_PCD; - writel(val, &hw->status); - - /* Put controller in suspend mode by writing 1 to SUSP bit of PORTSC */ - val = readl(&hw->port_status[0]); - if ((val & PORT_POWER) && (val & PORT_PE)) { - val |= PORT_SUSPEND; - writel(val, &hw->port_status[0]); - - /* Wait until port suspend completes */ - if (handshake(ehci, &hw->port_status[0], PORT_SUSPEND, - PORT_SUSPEND, 1000)) { - pr_err("%s: timeout waiting for PORT_SUSPEND\n", - __func__); - goto restart; - } - } - - tegra_ehci_phy_restore_end(tegra->phy); - return 0; - -restart: - if (tegra->port_speed <= TEGRA_USB_PHY_PORT_SPEED_HIGH) - tegra_ehci_phy_restore_end(tegra->phy); - - tegra_ehci_restart(hcd); - return 0; -} - static void tegra_ehci_shutdown(struct usb_hcd *hcd) { struct tegra_ehci_hcd *tegra = dev_get_drvdata(hcd->self.controller); @@ -434,36 +319,6 @@ static int tegra_ehci_setup(struct usb_hcd *hcd) return retval; } -#ifdef CONFIG_PM -static int tegra_ehci_bus_suspend(struct usb_hcd *hcd) -{ - struct tegra_ehci_hcd *tegra = dev_get_drvdata(hcd->self.controller); - int error_status = 0; - - error_status = ehci_bus_suspend(hcd); - if (!error_status && tegra->power_down_on_bus_suspend) { - tegra_usb_suspend(hcd); - tegra->bus_suspended = 1; - } - - return error_status; -} - -static int tegra_ehci_bus_resume(struct usb_hcd *hcd) -{ - struct tegra_ehci_hcd *tegra = dev_get_drvdata(hcd->self.controller); - - if (tegra->bus_suspended && tegra->power_down_on_bus_suspend) { - tegra_usb_resume(hcd); - tegra->bus_suspended = 0; - } - - tegra_usb_phy_preresume(tegra->phy); - tegra->port_resuming = 1; - return ehci_bus_resume(hcd); -} -#endif - struct temp_buffer { void *kmalloc_ptr; void *old_xfer_buffer; @@ -574,8 +429,8 @@ static const struct hc_driver tegra_ehci_hc_driver = { .hub_control = tegra_ehci_hub_control, .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, #ifdef CONFIG_PM - .bus_suspend = tegra_ehci_bus_suspend, - .bus_resume = tegra_ehci_bus_resume, + .bus_suspend = ehci_bus_suspend, + .bus_resume = ehci_bus_resume, #endif .relinquish_port = ehci_relinquish_port, .port_handed_over = ehci_port_handed_over, @@ -608,6 +463,183 @@ static int setup_vbus_gpio(struct platform_device *pdev) return err; } +#ifdef CONFIG_PM + +static int controller_suspend(struct device *dev) +{ + struct tegra_ehci_hcd *tegra = + platform_get_drvdata(to_platform_device(dev)); + struct ehci_hcd *ehci = tegra->ehci; + struct usb_hcd *hcd = ehci_to_hcd(ehci); + struct ehci_regs __iomem *hw = ehci->regs; + unsigned long flags; + + if (time_before(jiffies, ehci->next_statechange)) + msleep(10); + + spin_lock_irqsave(&ehci->lock, flags); + + tegra->port_speed = (readl(&hw->port_status[0]) >> 26) & 0x3; + ehci_halt(ehci); + clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); + + spin_unlock_irqrestore(&ehci->lock, flags); + + tegra_ehci_power_down(hcd); + return 0; +} + +static int controller_resume(struct device *dev) +{ + struct tegra_ehci_hcd *tegra = + platform_get_drvdata(to_platform_device(dev)); + struct ehci_hcd *ehci = tegra->ehci; + struct usb_hcd *hcd = ehci_to_hcd(ehci); + struct ehci_regs __iomem *hw = ehci->regs; + unsigned long val; + + set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); + tegra_ehci_power_up(hcd); + + if (tegra->port_speed > TEGRA_USB_PHY_PORT_SPEED_HIGH) { + /* Wait for the phy to detect new devices + * before we restart the controller */ + msleep(10); + goto restart; + } + + /* Force the phy to keep data lines in suspend state */ + tegra_ehci_phy_restore_start(tegra->phy, tegra->port_speed); + + /* Enable host mode */ + tdi_reset(ehci); + + /* Enable Port Power */ + val = readl(&hw->port_status[0]); + val |= PORT_POWER; + writel(val, &hw->port_status[0]); + udelay(10); + + /* Check if the phy resume from LP0. When the phy resume from LP0 + * USB register will be reset. */ + if (!readl(&hw->async_next)) { + /* Program the field PTC based on the saved speed mode */ + val = readl(&hw->port_status[0]); + val &= ~PORT_TEST(~0); + if (tegra->port_speed == TEGRA_USB_PHY_PORT_SPEED_HIGH) + val |= PORT_TEST_FORCE; + else if (tegra->port_speed == TEGRA_USB_PHY_PORT_SPEED_FULL) + val |= PORT_TEST(6); + else if (tegra->port_speed == TEGRA_USB_PHY_PORT_SPEED_LOW) + val |= PORT_TEST(7); + writel(val, &hw->port_status[0]); + udelay(10); + + /* Disable test mode by setting PTC field to NORMAL_OP */ + val = readl(&hw->port_status[0]); + val &= ~PORT_TEST(~0); + writel(val, &hw->port_status[0]); + udelay(10); + } + + /* Poll until CCS is enabled */ + if (handshake(ehci, &hw->port_status[0], PORT_CONNECT, + PORT_CONNECT, 2000)) { + pr_err("%s: timeout waiting for PORT_CONNECT\n", __func__); + goto restart; + } + + /* Poll until PE is enabled */ + if (handshake(ehci, &hw->port_status[0], PORT_PE, + PORT_PE, 2000)) { + pr_err("%s: timeout waiting for USB_PORTSC1_PE\n", __func__); + goto restart; + } + + /* Clear the PCI status, to avoid an interrupt taken upon resume */ + val = readl(&hw->status); + val |= STS_PCD; + writel(val, &hw->status); + + /* Put controller in suspend mode by writing 1 to SUSP bit of PORTSC */ + val = readl(&hw->port_status[0]); + if ((val & PORT_POWER) && (val & PORT_PE)) { + val |= PORT_SUSPEND; + writel(val, &hw->port_status[0]); + + /* Wait until port suspend completes */ + if (handshake(ehci, &hw->port_status[0], PORT_SUSPEND, + PORT_SUSPEND, 1000)) { + pr_err("%s: timeout waiting for PORT_SUSPEND\n", + __func__); + goto restart; + } + } + + tegra_ehci_phy_restore_end(tegra->phy); + goto done; + + restart: + if (tegra->port_speed <= TEGRA_USB_PHY_PORT_SPEED_HIGH) + tegra_ehci_phy_restore_end(tegra->phy); + + tegra_ehci_restart(hcd); + + done: + tegra_usb_phy_preresume(tegra->phy); + tegra->port_resuming = 1; + return 0; +} + +static int tegra_ehci_suspend(struct device *dev) +{ + struct tegra_ehci_hcd *tegra = + platform_get_drvdata(to_platform_device(dev)); + struct usb_hcd *hcd = ehci_to_hcd(tegra->ehci); + int rc = 0; + + /* + * When system sleep is supported and USB controller wakeup is + * implemented: If the controller is runtime-suspended and the + * wakeup setting needs to be changed, call pm_runtime_resume(). + */ + if (HCD_HW_ACCESSIBLE(hcd)) + rc = controller_suspend(dev); + return rc; +} + +static int tegra_ehci_resume(struct device *dev) +{ + int rc; + + rc = controller_resume(dev); + if (rc == 0) { + pm_runtime_disable(dev); + pm_runtime_set_active(dev); + pm_runtime_enable(dev); + } + return rc; +} + +static int tegra_ehci_runtime_suspend(struct device *dev) +{ + return controller_suspend(dev); +} + +static int tegra_ehci_runtime_resume(struct device *dev) +{ + return controller_resume(dev); +} + +static const struct dev_pm_ops tegra_ehci_pm_ops = { + .suspend = tegra_ehci_suspend, + .resume = tegra_ehci_resume, + .runtime_suspend = tegra_ehci_runtime_suspend, + .runtime_resume = tegra_ehci_runtime_resume, +}; + +#endif + static u64 tegra_ehci_dma_mask = DMA_BIT_MASK(32); static int tegra_ehci_probe(struct platform_device *pdev) @@ -722,7 +754,6 @@ static int tegra_ehci_probe(struct platform_device *pdev) } tegra->host_resumed = 1; - tegra->power_down_on_bus_suspend = pdata->power_down_on_bus_suspend; tegra->ehci = hcd_to_ehci(hcd); irq = platform_get_irq(pdev, 0); @@ -746,6 +777,14 @@ static int tegra_ehci_probe(struct platform_device *pdev) goto fail; } + pm_runtime_set_active(&pdev->dev); + pm_runtime_get_noresume(&pdev->dev); + + /* Don't skip the pm_runtime_forbid call if wakeup isn't working */ + /* if (!pdata->power_down_on_bus_suspend) */ + pm_runtime_forbid(&pdev->dev); + pm_runtime_enable(&pdev->dev); + pm_runtime_put_sync(&pdev->dev); return err; fail: @@ -772,33 +811,6 @@ fail_hcd: return err; } -#ifdef CONFIG_PM -static int tegra_ehci_resume(struct platform_device *pdev) -{ - struct tegra_ehci_hcd *tegra = platform_get_drvdata(pdev); - struct usb_hcd *hcd = ehci_to_hcd(tegra->ehci); - - if (tegra->bus_suspended) - return 0; - - return tegra_usb_resume(hcd); -} - -static int tegra_ehci_suspend(struct platform_device *pdev, pm_message_t state) -{ - struct tegra_ehci_hcd *tegra = platform_get_drvdata(pdev); - struct usb_hcd *hcd = ehci_to_hcd(tegra->ehci); - - if (tegra->bus_suspended) - return 0; - - if (time_before(jiffies, tegra->ehci->next_statechange)) - msleep(10); - - return tegra_usb_suspend(hcd); -} -#endif - static int tegra_ehci_remove(struct platform_device *pdev) { struct tegra_ehci_hcd *tegra = platform_get_drvdata(pdev); @@ -807,6 +819,10 @@ static int tegra_ehci_remove(struct platform_device *pdev) if (tegra == NULL || hcd == NULL) return -EINVAL; + pm_runtime_get_sync(&pdev->dev); + pm_runtime_disable(&pdev->dev); + pm_runtime_put_noidle(&pdev->dev); + #ifdef CONFIG_USB_OTG_UTILS if (tegra->transceiver) { otg_set_host(tegra->transceiver->otg, NULL); @@ -847,13 +863,12 @@ static struct of_device_id tegra_ehci_of_match[] __devinitdata = { static struct platform_driver tegra_ehci_driver = { .probe = tegra_ehci_probe, .remove = tegra_ehci_remove, -#ifdef CONFIG_PM - .suspend = tegra_ehci_suspend, - .resume = tegra_ehci_resume, -#endif .shutdown = tegra_ehci_hcd_shutdown, .driver = { .name = "tegra-ehci", .of_match_table = tegra_ehci_of_match, +#ifdef CONFIG_PM + .pm = &tegra_ehci_pm_ops, +#endif } }; -- cgit v0.10.2 From 04c235c92ce8474e9f2b358bd97f013a500385f2 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Mon, 30 Apr 2012 17:24:10 -0600 Subject: USB: ehci-tegra: remove redundant gpio_set_value The immediately preceding gpio_direction_output() already set the value, so there's no need to repeat it. This also prevents gpio_set_value() from WARNing when the GPIO is sleepable (e.g. is on an I2C expander); the set direction API is always sleepable, but plain set_value isn't. Cc: # v3.3 Signed-off-by: Stephen Warren Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index 73f3525..f214a80 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -458,7 +458,6 @@ static int setup_vbus_gpio(struct platform_device *pdev) dev_err(&pdev->dev, "can't enable vbus\n"); return err; } - gpio_set_value(gpio, 1); return err; } -- cgit v0.10.2 From 156d17905e783d057061b3b56a9b3befec064e47 Mon Sep 17 00:00:00 2001 From: Sachin Prabhu Date: Wed, 25 Apr 2012 12:10:14 +0100 Subject: CIFS: Fix indentation in cifs_show_options Trivial patch which fixes a misplaced tab in cifs_show_options(). Signed-off-by: Sachin Prabhu Signed-off-by: Steve French diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 811245b..ca6a379 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -442,7 +442,7 @@ cifs_show_options(struct seq_file *s, struct dentry *root) seq_printf(s, ",rsize=%u", cifs_sb->rsize); seq_printf(s, ",wsize=%u", cifs_sb->wsize); /* convert actimeo and display it in seconds */ - seq_printf(s, ",actimeo=%lu", cifs_sb->actimeo / HZ); + seq_printf(s, ",actimeo=%lu", cifs_sb->actimeo / HZ); return 0; } -- cgit v0.10.2 From 8f71465c19ffefbfd0da3c1f5dc172b4bce05e93 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Tue, 1 May 2012 17:41:49 -0400 Subject: cifs: don't cap ra_pages at the same level as default_backing_dev_info While testing, I've found that even when we are able to negotiate a much larger rsize with the server, on-the-wire reads often end up being capped at 128k because of ra_pages being capped at that level. Lifting this restriction gave almost a twofold increase in sequential read performance on my craptactular KVM test rig with a 1M rsize. I think this is safe since the actual ra_pages that the VM requests is run through max_sane_readahead() prior to submitting the I/O. Under memory pressure we should end up with large readahead requests being suppressed anyway. Signed-off-by: Jeff Layton Signed-off-by: Steve French diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index f4d381e..6ce888b 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -3614,22 +3614,6 @@ cifs_get_volume_info(char *mount_data, const char *devname) return volume_info; } -/* make sure ra_pages is a multiple of rsize */ -static inline unsigned int -cifs_ra_pages(struct cifs_sb_info *cifs_sb) -{ - unsigned int reads; - unsigned int rsize_pages = cifs_sb->rsize / PAGE_CACHE_SIZE; - - if (rsize_pages >= default_backing_dev_info.ra_pages) - return default_backing_dev_info.ra_pages; - else if (rsize_pages == 0) - return rsize_pages; - - reads = default_backing_dev_info.ra_pages / rsize_pages; - return reads * rsize_pages; -} - int cifs_mount(struct cifs_sb_info *cifs_sb, struct smb_vol *volume_info) { @@ -3717,7 +3701,7 @@ try_mount_again: cifs_sb->rsize = cifs_negotiate_rsize(tcon, volume_info); /* tune readahead according to rsize */ - cifs_sb->bdi.ra_pages = cifs_ra_pages(cifs_sb); + cifs_sb->bdi.ra_pages = cifs_sb->rsize / PAGE_CACHE_SIZE; remote_path_check: #ifdef CONFIG_CIFS_DFS_UPCALL -- cgit v0.10.2 From 58fa015f611b51e1f501b048bc5ac263c78852f0 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Tue, 1 May 2012 17:41:16 -0400 Subject: cifs: add missing initialization of server->req_lock Cc: Pavel Shilovsky Signed-off-by: Jeff Layton Signed-off-by: Steve French diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 6ce888b..a75902b 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -2183,6 +2183,7 @@ cifs_get_tcp_session(struct smb_vol *volume_info) tcp_ses->session_estab = false; tcp_ses->sequence_number = 0; tcp_ses->lstrp = jiffies; + spin_lock_init(&tcp_ses->req_lock); INIT_LIST_HEAD(&tcp_ses->tcp_ses_list); INIT_LIST_HEAD(&tcp_ses->smb_ses_list); INIT_DELAYED_WORK(&tcp_ses->echo, cifs_echo_request); -- cgit v0.10.2 From 074b5e1a99fb5017122591d70098601e0484ca6a Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Wed, 2 May 2012 12:07:06 +0100 Subject: drm/i915: Do not read non-existent DPLL registers on PCH hardware We only execute intel_decrease_pllclock for pre-PCH hardware, typically gen4 mobiles. However, in the variable declaration we did read from the non-PCH DPLL register, quite naughty and detected by SandyBridge. Reported-and-tested-by: Andrey Rahmatullin Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=49025 Signed-off-by: Chris Wilson Signed-Off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 5908cd5..1b1cf3b 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -7072,9 +7072,6 @@ static void intel_decrease_pllclock(struct drm_crtc *crtc) struct drm_device *dev = crtc->dev; drm_i915_private_t *dev_priv = dev->dev_private; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); - int pipe = intel_crtc->pipe; - int dpll_reg = DPLL(pipe); - int dpll = I915_READ(dpll_reg); if (HAS_PCH_SPLIT(dev)) return; @@ -7087,10 +7084,15 @@ static void intel_decrease_pllclock(struct drm_crtc *crtc) * the manual case. */ if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) { + int pipe = intel_crtc->pipe; + int dpll_reg = DPLL(pipe); + u32 dpll; + DRM_DEBUG_DRIVER("downclocking LVDS\n"); assert_panel_unlocked(dev_priv, pipe); + dpll = I915_READ(dpll_reg); dpll |= DISPLAY_RATE_SELECT_FPA1; I915_WRITE(dpll_reg, dpll); intel_wait_for_vblank(dev, pipe); @@ -7098,7 +7100,6 @@ static void intel_decrease_pllclock(struct drm_crtc *crtc) if (!(dpll & DISPLAY_RATE_SELECT_FPA1)) DRM_DEBUG_DRIVER("failed to downclock LVDS!\n"); } - } /** -- cgit v0.10.2 From e90f3b61f4432e3c5bb6b57f4b3e8d8cba747541 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Mon, 30 Apr 2012 19:35:02 +0100 Subject: drm/i915: Only enable IPS polling for gen5 On SandyBridge IPS was entirely implemented in hardware and not reliant on the driver monitoring power consumption and feeding back desired run states, so the hardware is able to adapt quicker and more flexibly. Which is a huge relief for us as we no longer have to carry empirically derived magic algorithms. Yet despite the advance in technology, the driver was still doing its IPS polling on all machines. Restrict it to the only supported hardware, Clarkdale/Arrandale. Signed-off-by: Chris Wilson Reviewed-by: Jesse Barnes Tested-by: Andrey Rahmatullin Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=49025 Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index b505b70..e6162a1 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -1224,6 +1224,9 @@ static int i915_emon_status(struct seq_file *m, void *unused) unsigned long temp, chipset, gfx; int ret; + if (!IS_GEN5(dev)) + return -ENODEV; + ret = mutex_lock_interruptible(&dev->struct_mutex); if (ret) return ret; diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 785f67f..ba60f3c 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1701,6 +1701,9 @@ void i915_update_gfx_val(struct drm_i915_private *dev_priv) unsigned long diffms; u32 count; + if (dev_priv->info->gen != 5) + return; + getrawmonotonic(&now); diff1 = timespec_sub(now, dev_priv->last_time2); @@ -2121,12 +2124,14 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) setup_timer(&dev_priv->hangcheck_timer, i915_hangcheck_elapsed, (unsigned long) dev); - spin_lock(&mchdev_lock); - i915_mch_dev = dev_priv; - dev_priv->mchdev_lock = &mchdev_lock; - spin_unlock(&mchdev_lock); + if (IS_GEN5(dev)) { + spin_lock(&mchdev_lock); + i915_mch_dev = dev_priv; + dev_priv->mchdev_lock = &mchdev_lock; + spin_unlock(&mchdev_lock); - ips_ping_for_i915_load(); + ips_ping_for_i915_load(); + } return 0; -- cgit v0.10.2 From 62004978df3898649e152751eb6ac264a323ec36 Mon Sep 17 00:00:00 2001 From: Marc Gariepy Date: Tue, 1 May 2012 13:37:57 -0400 Subject: fixing dmi match for hp t5745 and hp st5747 thin client Match the correct information which is DMI_PRODUCT_NAME instead of DMI_BOARD_NAME See dmidecode information on launchpad for both thin client: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/911920 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/911916 Signed-off-by: Marc Gariepy Reviewed-by: Adam Jackson Signed-Off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index 30e2c82..9c71183 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -750,7 +750,7 @@ static const struct dmi_system_id intel_no_lvds[] = { .ident = "Hewlett-Packard t5745", .matches = { DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_BOARD_NAME, "hp t5745"), + DMI_MATCH(DMI_PRODUCT_NAME, "hp t5745"), }, }, { @@ -758,7 +758,7 @@ static const struct dmi_system_id intel_no_lvds[] = { .ident = "Hewlett-Packard st5747", .matches = { DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_BOARD_NAME, "hp st5747"), + DMI_MATCH(DMI_PRODUCT_NAME, "hp st5747"), }, }, { -- cgit v0.10.2 From dd7f1fe1fbe14cb100de14e6aa26ce4d3be0fab9 Mon Sep 17 00:00:00 2001 From: Matt Turner Date: Tue, 1 May 2012 21:28:59 -0400 Subject: alpha: VGA_HOSE depends on VGA_CONSOLE MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit arch/alpha/kernel/console.c:locate_and_init_vga uses vga_con, causing build failures if VGA_CONSOLE was not set and MARVEL, TITAN, DP264, or GENERIC alpha system types were set. Reported-by: Raúl Porcel Signed-off-by: Matt Turner diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 56a4df9..22e58a9 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -477,7 +477,7 @@ config ALPHA_BROKEN_IRQ_MASK config VGA_HOSE bool - depends on ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI + depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI) default y help Support VGA on an arbitrary hose; needed for several platforms -- cgit v0.10.2 From f8eafb5f1a7af1281fef93fd47c9bfe0d68c8652 Mon Sep 17 00:00:00 2001 From: Matt Turner Date: Tue, 1 May 2012 21:52:26 -0400 Subject: alpha: properly define get/set_rtc_time on Marvel/SMP MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The marvel_get_rtc_time and marvel_set_rtc_time are static, but they're available through Marvel's machine vector. Reported-by: Raúl Porcel Signed-off-by: Matt Turner diff --git a/arch/alpha/include/asm/rtc.h b/arch/alpha/include/asm/rtc.h index 1f7fba6..d70408d 100644 --- a/arch/alpha/include/asm/rtc.h +++ b/arch/alpha/include/asm/rtc.h @@ -1,14 +1,10 @@ #ifndef _ALPHA_RTC_H #define _ALPHA_RTC_H -#if defined(CONFIG_ALPHA_GENERIC) +#if defined(CONFIG_ALPHA_MARVEL) && defined(CONFIG_SMP) \ + || defined(CONFIG_ALPHA_GENERIC) # define get_rtc_time alpha_mv.rtc_get_time # define set_rtc_time alpha_mv.rtc_set_time -#else -# if defined(CONFIG_ALPHA_MARVEL) && defined(CONFIG_SMP) -# define get_rtc_time marvel_get_rtc_time -# define set_rtc_time marvel_set_rtc_time -# endif #endif #include -- cgit v0.10.2 From 8fa196478b8fb30e59456252ab4b309985f67443 Mon Sep 17 00:00:00 2001 From: Jim Faulkner Date: Tue, 1 May 2012 21:58:08 -0400 Subject: alpha: include module.h to fix modpost on Tsunami Signed-off-by: Jim Faulkner Signed-off-by: Matt Turner diff --git a/arch/alpha/kernel/core_tsunami.c b/arch/alpha/kernel/core_tsunami.c index 5e7c28f..61893d7 100644 --- a/arch/alpha/kernel/core_tsunami.c +++ b/arch/alpha/kernel/core_tsunami.c @@ -11,6 +11,7 @@ #include #undef __EXTERN_INLINE +#include #include #include #include -- cgit v0.10.2 From 2f2be2784a60d7ab3f13dbb3e18f0cadea5bb655 Mon Sep 17 00:00:00 2001 From: Matt Turner Date: Tue, 1 May 2012 22:12:12 -0400 Subject: alpha: silence 'const' warning in sys_marvel.c warning: passing argument 1 of 'pci_find_capability' discards 'const' qualifier from pointer target type Signed-off-by: Matt Turner diff --git a/arch/alpha/kernel/sys_marvel.c b/arch/alpha/kernel/sys_marvel.c index 14a4b6a..407accc 100644 --- a/arch/alpha/kernel/sys_marvel.c +++ b/arch/alpha/kernel/sys_marvel.c @@ -317,7 +317,7 @@ marvel_init_irq(void) } static int -marvel_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) +marvel_map_irq(struct pci_dev *dev, u8 slot, u8 pin) { struct pci_controller *hose = dev->sysdata; struct io7_port *io7_port = hose->sysdata; -- cgit v0.10.2 From 5bbdc057c270cc0d672ead03320ed8d7a11bac03 Mon Sep 17 00:00:00 2001 From: Joakim Tjernlund Date: Sun, 29 Apr 2012 22:36:54 +0000 Subject: net: ucc_geth, increase no. of HW RX descriptors In a busy network we see ucc_geth is dropping RX pkgs every now and then. Increase the RX queues HW descriptors from 16 to 32 to deal with this. Signed-off-by: Joakim Tjernlund Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/freescale/ucc_geth.h b/drivers/net/ethernet/freescale/ucc_geth.h index 2e395a2..f71b3e7 100644 --- a/drivers/net/ethernet/freescale/ucc_geth.h +++ b/drivers/net/ethernet/freescale/ucc_geth.h @@ -877,7 +877,7 @@ struct ucc_geth_hardware_statistics { /* Driver definitions */ #define TX_BD_RING_LEN 0x10 -#define RX_BD_RING_LEN 0x10 +#define RX_BD_RING_LEN 0x20 #define TX_RING_MOD_MASK(size) (size-1) #define RX_RING_MOD_MASK(size) (size-1) -- cgit v0.10.2 From 70f8002d7813ffc5dd9ff3e9d01a17794fb4a4df Mon Sep 17 00:00:00 2001 From: Joakim Tjernlund Date: Sun, 29 Apr 2012 22:36:55 +0000 Subject: ucc_geth: Add 16 bytes to max TX frame for VLANs Creating a VLAN interface on top of ucc_geth adds 4 bytes to the frame and the HW controller is not prepared to TX a frame bigger than 1518 bytes which is 4 bytes too small for a full VLAN frame. Add 16 bytes which will handle the a simple VLAN and leaves 12 bytes for future expansion. Signed-off-by: Joakim Tjernlund Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/freescale/ucc_geth.c b/drivers/net/ethernet/freescale/ucc_geth.c index 17a46e7..9ac14f8 100644 --- a/drivers/net/ethernet/freescale/ucc_geth.c +++ b/drivers/net/ethernet/freescale/ucc_geth.c @@ -116,10 +116,10 @@ static struct ucc_geth_info ugeth_primary_info = { .maxGroupAddrInHash = 4, .maxIndAddrInHash = 4, .prel = 7, - .maxFrameLength = 1518, + .maxFrameLength = 1518+16, /* Add extra bytes for VLANs etc. */ .minFrameLength = 64, - .maxD1Length = 1520, - .maxD2Length = 1520, + .maxD1Length = 1520+16, /* Add extra bytes for VLANs etc. */ + .maxD2Length = 1520+16, /* Add extra bytes for VLANs etc. */ .vlantype = 0x8100, .ecamptr = ((uint32_t) NULL), .eventRegMask = UCCE_OTHER, -- cgit v0.10.2 From 720f3d7cb19eb27f85f72836c8f8004ccb257f39 Mon Sep 17 00:00:00 2001 From: "tom.leiming@gmail.com" Date: Sun, 29 Apr 2012 22:51:02 +0000 Subject: usbnet: fix leak of transfer buffer of dev->interrupt The transfer buffer of dev->interrupt is allocated in .probe path, but not freed in .disconnet path, so mark the interrupt URB as URB_FREE_BUFFER to free the buffer when the URB is destroyed. Signed-off-by: Ming Lei Acked-by: Oliver Neukum Signed-off-by: David S. Miller diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index b7b3f5b..ca6fd80 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -210,6 +210,7 @@ static int init_status (struct usbnet *dev, struct usb_interface *intf) } else { usb_fill_int_urb(dev->interrupt, dev->udev, pipe, buf, maxp, intr_complete, dev, period); + dev->interrupt->transfer_flags |= URB_FREE_BUFFER; dev_dbg(&intf->dev, "status ep%din, %d bytes period %d\n", usb_pipeendpoint(pipe), maxp, period); -- cgit v0.10.2 From a4723848d05dd31d298c551fb77ad28481309999 Mon Sep 17 00:00:00 2001 From: "tom.leiming@gmail.com" Date: Sun, 29 Apr 2012 22:51:03 +0000 Subject: usbnet: fix failure handling in usbnet_probe If register_netdev returns failure, the dev->interrupt and its transfer buffer should be released, so just fix it. Signed-off-by: Ming Lei Signed-off-by: David S. Miller diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index ca6fd80..2d927fb 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -1444,7 +1444,7 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) status = register_netdev (net); if (status) - goto out3; + goto out4; netif_info(dev, probe, dev->net, "register '%s' at usb-%s-%s, %s, %pM\n", udev->dev.driver->name, @@ -1462,6 +1462,8 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) return 0; +out4: + usb_free_urb(dev->interrupt); out3: if (info->unbind) info->unbind (dev, udev); -- cgit v0.10.2 From 4fdcfa12843bca38d0c9deff70c8720e4e8f515f Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Tue, 1 May 2012 08:18:02 +0000 Subject: drop_monitor: prevent init path from scheduling on the wrong cpu I just noticed after some recent updates, that the init path for the drop monitor protocol has a minor error. drop monitor maintains a per cpu structure, that gets initalized from a single cpu. Normally this is fine, as the protocol isn't in use yet, but I recently made a change that causes a failed skb allocation to reschedule itself . Given the current code, the implication is that this workqueue reschedule will take place on the wrong cpu. If drop monitor is used early during the boot process, its possible that two cpus will access a single per-cpu structure in parallel, possibly leading to data corruption. This patch fixes the situation, by storing the cpu number that a given instance of this per-cpu data should be accessed from. In the case of a need for a reschedule, the cpu stored in the struct is assigned the rescheule, rather than the currently executing cpu Tested successfully by myself. Signed-off-by: Neil Horman CC: David Miller Signed-off-by: David S. Miller diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c index 7592943..a7cad74 100644 --- a/net/core/drop_monitor.c +++ b/net/core/drop_monitor.c @@ -49,6 +49,7 @@ struct per_cpu_dm_data { struct sk_buff __rcu *skb; atomic_t dm_hit_count; struct timer_list send_timer; + int cpu; }; struct dm_hw_stat_delta { @@ -73,7 +74,6 @@ static int dm_hit_limit = 64; static int dm_delay = 1; static unsigned long dm_hw_check_delta = 2*HZ; static LIST_HEAD(hw_stats_list); -static int initialized = 0; static void reset_per_cpu_data(struct per_cpu_dm_data *data) { @@ -96,8 +96,8 @@ static void reset_per_cpu_data(struct per_cpu_dm_data *data) sizeof(struct net_dm_alert_msg)); msg = nla_data(nla); memset(msg, 0, al); - } else if (initialized) - schedule_work_on(smp_processor_id(), &data->dm_alert_work); + } else + schedule_work_on(data->cpu, &data->dm_alert_work); /* * Don't need to lock this, since we are guaranteed to only @@ -121,6 +121,8 @@ static void send_dm_alert(struct work_struct *unused) struct sk_buff *skb; struct per_cpu_dm_data *data = &get_cpu_var(dm_cpu_data); + WARN_ON_ONCE(data->cpu != smp_processor_id()); + /* * Grab the skb we're about to send */ @@ -404,14 +406,14 @@ static int __init init_net_drop_monitor(void) for_each_present_cpu(cpu) { data = &per_cpu(dm_cpu_data, cpu); - reset_per_cpu_data(data); + data->cpu = cpu; INIT_WORK(&data->dm_alert_work, send_dm_alert); init_timer(&data->send_timer); data->send_timer.data = cpu; data->send_timer.function = sched_send_work; + reset_per_cpu_data(data); } - initialized = 1; goto out; -- cgit v0.10.2 From 84768edbb2721637620b2d84501bb0d5aed603f1 Mon Sep 17 00:00:00 2001 From: Sasha Levin Date: Wed, 2 May 2012 03:58:43 +0000 Subject: net: l2tp: unlock socket lock before returning from l2tp_ip_sendmsg l2tp_ip_sendmsg could return without releasing socket lock, making it all the way to userspace, and generating the following warning: [ 130.891594] ================================================ [ 130.894569] [ BUG: lock held when returning to user space! ] [ 130.897257] 3.4.0-rc5-next-20120501-sasha #104 Tainted: G W [ 130.900336] ------------------------------------------------ [ 130.902996] trinity/8384 is leaving the kernel with locks still held! [ 130.906106] 1 lock held by trinity/8384: [ 130.907924] #0: (sk_lock-AF_INET){+.+.+.}, at: [] l2tp_ip_sendmsg+0x2f/0x550 Introduced by commit 2f16270 ("l2tp: Fix locking in l2tp_ip.c"). Signed-off-by: Sasha Levin Acked-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c index 585d93e..6274f0b 100644 --- a/net/l2tp/l2tp_ip.c +++ b/net/l2tp/l2tp_ip.c @@ -442,8 +442,9 @@ static int l2tp_ip_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *m daddr = lip->l2tp_addr.s_addr; } else { + rc = -EDESTADDRREQ; if (sk->sk_state != TCP_ESTABLISHED) - return -EDESTADDRREQ; + goto out; daddr = inet->inet_daddr; connected = 1; -- cgit v0.10.2 From b49960a05e32121d29316cfdf653894b88ac9190 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 2 May 2012 02:28:41 +0000 Subject: tcp: change tcp_adv_win_scale and tcp_rmem[2] tcp_adv_win_scale default value is 2, meaning we expect a good citizen skb to have skb->len / skb->truesize ratio of 75% (3/4) In 2.6 kernels we (mis)accounted for typical MSS=1460 frame : 1536 + 64 + 256 = 1856 'estimated truesize', and 1856 * 3/4 = 1392. So these skbs were considered as not bloated. With recent truesize fixes, a typical MSS=1460 frame truesize is now the more precise : 2048 + 256 = 2304. But 2304 * 3/4 = 1728. So these skb are not good citizen anymore, because 1460 < 1728 (GRO can escape this problem because it build skbs with a too low truesize.) This also means tcp advertises a too optimistic window for a given allocated rcvspace : When receiving frames, sk_rmem_alloc can hit sk_rcvbuf limit and we call tcp_prune_queue()/tcp_collapse() too often, especially when application is slow to drain its receive queue or in case of losses (netperf is fast, scp is slow). This is a major latency source. We should adjust the len/truesize ratio to 50% instead of 75% This patch : 1) changes tcp_adv_win_scale default to 1 instead of 2 2) increase tcp_rmem[2] limit from 4MB to 6MB to take into account better truesize tracking and to allow autotuning tcp receive window to reach same value than before. Note that same amount of kernel memory is consumed compared to 2.6 kernels. Signed-off-by: Eric Dumazet Cc: Neal Cardwell Cc: Tom Herbert Cc: Yuchung Cheng Acked-by: Neal Cardwell Signed-off-by: David S. Miller diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index bd80ba5..1619a8c 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -147,7 +147,7 @@ tcp_adv_win_scale - INTEGER (if tcp_adv_win_scale > 0) or bytes-bytes/2^(-tcp_adv_win_scale), if it is <= 0. Possible values are [-31, 31], inclusive. - Default: 2 + Default: 1 tcp_allowed_congestion_control - STRING Show/set the congestion control choices available to non-privileged @@ -410,7 +410,7 @@ tcp_rmem - vector of 3 INTEGERs: min, default, max net.core.rmem_max. Calling setsockopt() with SO_RCVBUF disables automatic tuning of that socket's receive buffer size, in which case this value is ignored. - Default: between 87380B and 4MB, depending on RAM size. + Default: between 87380B and 6MB, depending on RAM size. tcp_sack - BOOLEAN Enable select acknowledgments (SACKS). diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 8bb6ade..1272a88 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -3243,7 +3243,7 @@ void __init tcp_init(void) { struct sk_buff *skb = NULL; unsigned long limit; - int max_share, cnt; + int max_rshare, max_wshare, cnt; unsigned int i; unsigned long jiffy = jiffies; @@ -3303,15 +3303,16 @@ void __init tcp_init(void) tcp_init_mem(&init_net); /* Set per-socket limits to no more than 1/128 the pressure threshold */ limit = nr_free_buffer_pages() << (PAGE_SHIFT - 7); - max_share = min(4UL*1024*1024, limit); + max_wshare = min(4UL*1024*1024, limit); + max_rshare = min(6UL*1024*1024, limit); sysctl_tcp_wmem[0] = SK_MEM_QUANTUM; sysctl_tcp_wmem[1] = 16*1024; - sysctl_tcp_wmem[2] = max(64*1024, max_share); + sysctl_tcp_wmem[2] = max(64*1024, max_wshare); sysctl_tcp_rmem[0] = SK_MEM_QUANTUM; sysctl_tcp_rmem[1] = 87380; - sysctl_tcp_rmem[2] = max(87380, max_share); + sysctl_tcp_rmem[2] = max(87380, max_rshare); pr_info("Hash tables configured (established %u bind %u)\n", tcp_hashinfo.ehash_mask + 1, tcp_hashinfo.bhash_size); diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index d99efd7..257b617 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -85,7 +85,7 @@ int sysctl_tcp_ecn __read_mostly = 2; EXPORT_SYMBOL(sysctl_tcp_ecn); int sysctl_tcp_dsack __read_mostly = 1; int sysctl_tcp_app_win __read_mostly = 31; -int sysctl_tcp_adv_win_scale __read_mostly = 2; +int sysctl_tcp_adv_win_scale __read_mostly = 1; EXPORT_SYMBOL(sysctl_tcp_adv_win_scale); int sysctl_tcp_stdurg __read_mostly; -- cgit v0.10.2 From 5a8887d39e1ba5ee2d4ccb94b14d6f2dce5ddfca Mon Sep 17 00:00:00 2001 From: Gerard Lledo Date: Sat, 28 Apr 2012 08:52:37 +0000 Subject: sungem: Fix WakeOnLan WakeOnLan was broken in this driver because gp->asleep_wol is a 1-bit bitfield and it was being assigned WAKE_MAGIC, which is (1 << 5). gp->asleep_wol remains 0 and the machine never wakes up. Fixed by casting gp->wake_on_lan to bool. Tested on an iBook G4. Signed-off-by: Gerard Lledo Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/sun/sungem.c b/drivers/net/ethernet/sun/sungem.c index 558409f..4ba9690 100644 --- a/drivers/net/ethernet/sun/sungem.c +++ b/drivers/net/ethernet/sun/sungem.c @@ -2339,7 +2339,7 @@ static int gem_suspend(struct pci_dev *pdev, pm_message_t state) netif_device_detach(dev); /* Switch off chip, remember WOL setting */ - gp->asleep_wol = gp->wake_on_lan; + gp->asleep_wol = !!gp->wake_on_lan; gem_do_stop(dev, gp->asleep_wol); /* Unlock the network stack */ -- cgit v0.10.2 From addde4ec31456c5f1e9b61aae3edcfeb0f338f87 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Wed, 2 May 2012 20:26:24 +0100 Subject: nouveau: initialise has_optimus variable. We should initialise this to 0 really to avoid getting false positives. Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c b/drivers/gpu/drm/nouveau/nouveau_acpi.c index 7814a76..284bd25 100644 --- a/drivers/gpu/drm/nouveau/nouveau_acpi.c +++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c @@ -270,7 +270,7 @@ static bool nouveau_dsm_detect(void) struct acpi_buffer buffer = {sizeof(acpi_method_name), acpi_method_name}; struct pci_dev *pdev = NULL; int has_dsm = 0; - int has_optimus; + int has_optimus = 0; int vga_count = 0; bool guid_valid; int retval; -- cgit v0.10.2 From c1230df7e19e0f27655c0eb9d966c7e03be7cc50 Mon Sep 17 00:00:00 2001 From: Paulo Zanoni Date: Wed, 2 May 2012 22:55:43 -0300 Subject: drm/i915: enable dip before writing data on gen4 While testing with the intel_infoframes tool on gen4, I see that when video DIP is disabled, what we write to the DATA memory is not exactly what we read back later. This regression has been introduce in commit 64a8fc0145a1d0fdc25fc9367c2e6c621955fb3b Author: Jesse Barnes Date: Thu Sep 22 11:16:00 2011 +0530 drm/i915: fix ILK+ infoframe support That commit was setting VIDEO_DIP_CTL to 0 when initializing, which caused the problem. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=43947 Cc: stable@kernel.org Tested-by: Yang Guang Signed-off-by: Paulo Zanoni Reviewed-by: Eugeni Dodonov [danvet: Pimped commit message by using the usual commit citation layout.] Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index cae3e5f..2d7f47b 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -136,7 +136,7 @@ static void i9xx_write_infoframe(struct drm_encoder *encoder, val &= ~VIDEO_DIP_SELECT_MASK; - I915_WRITE(VIDEO_DIP_CTL, val | port | flags); + I915_WRITE(VIDEO_DIP_CTL, VIDEO_DIP_ENABLE | val | port | flags); for (i = 0; i < len; i += 4) { I915_WRITE(VIDEO_DIP_DATA, *data); -- cgit v0.10.2 From 6868225e3e92399068be9a5f1635752d91012ad5 Mon Sep 17 00:00:00 2001 From: Lin Ming Date: Thu, 3 May 2012 22:15:07 +0800 Subject: libata: skip old error history when counting probe trials Commit d902747("[libata] Add ATA transport class") introduced ATA_EFLAG_OLD_ER to mark entries in the error ring as cleared. But ata_count_probe_trials_cb() didn't check this flag and it still counts the old error history. So wrong probe trials count is returned and it causes problem, for example, SATA link speed is slowed down from 3.0Gbps to 1.5Gbps. Fix it by checking ATA_EFLAG_OLD_ER in ata_count_probe_trials_cb(). Cc: stable # 2.6.37+ Signed-off-by: Lin Ming Signed-off-by: Jeff Garzik diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index c61316e..d1fbd59 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -3501,7 +3501,8 @@ static int ata_count_probe_trials_cb(struct ata_ering_entry *ent, void *void_arg u64 now = get_jiffies_64(); int *trials = void_arg; - if (ent->timestamp < now - min(now, interval)) + if ((ent->eflags & ATA_EFLAG_OLD_ER) || + (ent->timestamp < now - min(now, interval))) return -1; (*trials)++; -- cgit v0.10.2 From 642d89252201c4155fc3946bf9cdea409e5d263e Mon Sep 17 00:00:00 2001 From: Matt Johnson Date: Fri, 27 Apr 2012 01:42:30 -0500 Subject: ahci: Detect Marvell 88SE9172 SATA controller The Marvell 88SE9172 SATA controller (PCI ID 1b4b 917a) already worked once it was detected, but was missing an ahci_pci_tbl entry. Boot tested on a Gigabyte Z68X-UD3H-B3 motherboard. Signed-off-by: Matt Johnson Signed-off-by: Jeff Garzik diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 79a1e9d..ebaf67e 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -394,6 +394,8 @@ static const struct pci_device_id ahci_pci_tbl[] = { .driver_data = board_ahci_yes_fbs }, /* 88se9128 */ { PCI_DEVICE(0x1b4b, 0x9125), .driver_data = board_ahci_yes_fbs }, /* 88se9125 */ + { PCI_DEVICE(0x1b4b, 0x917a), + .driver_data = board_ahci_yes_fbs }, /* 88se9172 */ { PCI_DEVICE(0x1b4b, 0x91a3), .driver_data = board_ahci_yes_fbs }, -- cgit v0.10.2 From a78f57af610ea20559e6c63d90876bc262fdbf37 Mon Sep 17 00:00:00 2001 From: Tero Roponen Date: Sun, 22 Apr 2012 11:38:00 +0300 Subject: libata: init ata_print_id to 0 When comparing the dmesg between 3.4-rc3 and 3.4-rc4 I found the following differences: -ata1: SATA max UDMA/133 abar m2048@0xf9fff000 port 0xf9fff100 irq 47 -ata2: SATA max UDMA/133 abar m2048@0xf9fff000 port 0xf9fff180 irq 47 -ata3: DUMMY +ata2: SATA max UDMA/133 abar m2048@0xf9fff000 port 0xf9fff100 irq 47 +ata3: SATA max UDMA/133 abar m2048@0xf9fff000 port 0xf9fff180 irq 47 ata4: DUMMY ata5: DUMMY -ata6: SATA max UDMA/133 abar m2048@0xf9fff000 port 0xf9fff380 irq 47 +ata6: DUMMY +ata7: SATA max UDMA/133 abar m2048@0xf9fff000 port 0xf9fff380 irq 47 The change of numbering comes from commit 85d6725b7c0d7e3f ("libata: make ata_print_id atomic") that changed lines like ap->print_id = ata_print_id++; to ap->print_id = atomic_inc_return(&ata_print_id); As the latter behaves like ++ata_print_id, we must initialize it to zero to start the numbering from one. Signed-off-by: Tero Roponen Acked-by: Dan Williams Signed-off-by: Jeff Garzik diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 28db50b..23763a1 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -95,7 +95,7 @@ static unsigned int ata_dev_set_xfermode(struct ata_device *dev); static void ata_dev_xfermask(struct ata_device *dev); static unsigned long ata_dev_blacklisted(const struct ata_device *dev); -atomic_t ata_print_id = ATOMIC_INIT(1); +atomic_t ata_print_id = ATOMIC_INIT(0); struct ata_force_param { const char *name; -- cgit v0.10.2 From fb9751d471977be402efa1ee5885a17af78cbc55 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Sat, 21 Apr 2012 17:40:09 +0530 Subject: ata/pata_arasan_cf: Move arasan_cf_pm_ops out of #ifdef, #endif macros #ifdef, #endif is not required in definition/usage of arasan_cf_pm_ops. So, move this definition and its usage outside of them. Signed-off-by: Viresh Kumar Signed-off-by: Jeff Garzik diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c index fc2db2a..3239517 100644 --- a/drivers/ata/pata_arasan_cf.c +++ b/drivers/ata/pata_arasan_cf.c @@ -943,9 +943,9 @@ static int arasan_cf_resume(struct device *dev) return 0; } +#endif static SIMPLE_DEV_PM_OPS(arasan_cf_pm_ops, arasan_cf_suspend, arasan_cf_resume); -#endif static struct platform_driver arasan_cf_driver = { .probe = arasan_cf_probe, @@ -953,9 +953,7 @@ static struct platform_driver arasan_cf_driver = { .driver = { .name = DRIVER_NAME, .owner = THIS_MODULE, -#ifdef CONFIG_PM .pm = &arasan_cf_pm_ops, -#endif }, }; -- cgit v0.10.2 From 5f098a3ea72e73ad3733c3280fd5ee04816dc999 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Sat, 21 Apr 2012 17:40:12 +0530 Subject: ata: ahci_platform: Add synopsys ahci controller in DT's compatible list SPEAr13xx series of SoCs contain Synopsys AHCI SATA Controller which shares ahci_platform driver with other controller versions. This patch updates DT compatible list for ahci_platform. It also updates and renames binding documentation to more generic name. Signed-off-by: Viresh Kumar Cc: Rob Herring Signed-off-by: Jeff Garzik diff --git a/Documentation/devicetree/bindings/ata/ahci-platform.txt b/Documentation/devicetree/bindings/ata/ahci-platform.txt new file mode 100644 index 0000000..8bb8a76 --- /dev/null +++ b/Documentation/devicetree/bindings/ata/ahci-platform.txt @@ -0,0 +1,16 @@ +* AHCI SATA Controller + +SATA nodes are defined to describe on-chip Serial ATA controllers. +Each SATA controller should have its own node. + +Required properties: +- compatible : compatible list, contains "calxeda,hb-ahci" or "snps,spear-ahci" +- interrupts : +- reg : + +Example: + sata@ffe08000 { + compatible = "calxeda,hb-ahci"; + reg = <0xffe08000 0x1000>; + interrupts = <115>; + }; diff --git a/Documentation/devicetree/bindings/ata/calxeda-sata.txt b/Documentation/devicetree/bindings/ata/calxeda-sata.txt deleted file mode 100644 index 79caa56..0000000 --- a/Documentation/devicetree/bindings/ata/calxeda-sata.txt +++ /dev/null @@ -1,17 +0,0 @@ -* Calxeda SATA Controller - -SATA nodes are defined to describe on-chip Serial ATA controllers. -Each SATA controller should have its own node. - -Required properties: -- compatible : compatible list, contains "calxeda,hb-ahci" -- interrupts : -- reg : - -Example: - sata@ffe08000 { - compatible = "calxeda,hb-ahci"; - reg = <0xffe08000 0x1000>; - interrupts = <115>; - }; - diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c index 0c86c77..9e419e1 100644 --- a/drivers/ata/ahci_platform.c +++ b/drivers/ata/ahci_platform.c @@ -280,6 +280,7 @@ static struct dev_pm_ops ahci_pm_ops = { static const struct of_device_id ahci_of_match[] = { { .compatible = "calxeda,hb-ahci", }, + { .compatible = "snps,spear-ahci", }, {}, }; MODULE_DEVICE_TABLE(of, ahci_of_match); -- cgit v0.10.2 From 936ad9094462578953042d3395b973f1c9e6fa95 Mon Sep 17 00:00:00 2001 From: Ian Kent Date: Wed, 2 May 2012 07:19:09 -0400 Subject: cifs - check S_AUTOMOUNT in revalidate When revalidating a dentry, if the inode wasn't known to be a dfs entry when the dentry was instantiated, such as when created via ->readdir(), the DCACHE_NEED_AUTOMOUNT flag needs to be set on the dentry in ->d_revalidate(). The false return from cifs_d_revalidate(), due to the inode now being marked with the S_AUTOMOUNT flag, might not invalidate the dentry if there is a concurrent unlazy path walk. This is because the dentry reference count will be at least 2 in this case causing d_invalidate() to return EBUSY. So the asumption that the dentry will be discarded then correctly instantiated via ->lookup() might not hold. Signed-off-by: Ian Kent Reviewed-by: Jeff Layton Cc: Steve French Cc: linux-cifs@vger.kernel.org Signed-off-by: Steve French diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index d172c8e..ec4e9a2 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -668,12 +668,19 @@ cifs_d_revalidate(struct dentry *direntry, struct nameidata *nd) return 0; else { /* - * Forcibly invalidate automounting directory inodes - * (remote DFS directories) so to have them - * instantiated again for automount + * If the inode wasn't known to be a dfs entry when + * the dentry was instantiated, such as when created + * via ->readdir(), it needs to be set now since the + * attributes will have been updated by + * cifs_revalidate_dentry(). */ - if (IS_AUTOMOUNT(direntry->d_inode)) - return 0; + if (IS_AUTOMOUNT(direntry->d_inode) && + !(direntry->d_flags & DCACHE_NEED_AUTOMOUNT)) { + spin_lock(&direntry->d_lock); + direntry->d_flags |= DCACHE_NEED_AUTOMOUNT; + spin_unlock(&direntry->d_lock); + } + return 1; } } -- cgit v0.10.2 From f966424e9935900e34cace8116d37aa70cff23d0 Mon Sep 17 00:00:00 2001 From: Steve French Date: Wed, 2 May 2012 11:58:19 -0500 Subject: [CIFS] Update cifs version to 1.78 Signed-off-by: Steve French diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h index d1389bb..6536535 100644 --- a/fs/cifs/cifsfs.h +++ b/fs/cifs/cifsfs.h @@ -125,5 +125,5 @@ extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg); extern const struct export_operations cifs_export_ops; #endif /* CONFIG_CIFS_NFSD_EXPORT */ -#define CIFS_VERSION "1.77" +#define CIFS_VERSION "1.78" #endif /* _CIFSFS_H */ -- cgit v0.10.2 From a557b97616c49d81e09c8439831d4c4f13ef4050 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Wed, 2 May 2012 14:02:40 -0400 Subject: cifs: make sure we ignore the credentials= and cred= options Older mount.cifs programs passed this on to the kernel after parsing the file. Make sure the kernel ignores that option. Should fix: https://bugzilla.kernel.org/show_bug.cgi?id=43195 Cc: Sachin Prabhu Reported-by: Ronald Signed-off-by: Jeff Layton Signed-off-by: Steve French diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index a75902b..5dcc551 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -215,6 +215,8 @@ static const match_table_t cifs_mount_option_tokens = { { Opt_ignore, "cred" }, { Opt_ignore, "credentials" }, + { Opt_ignore, "cred=%s" }, + { Opt_ignore, "credentials=%s" }, { Opt_ignore, "guest" }, { Opt_ignore, "rw" }, { Opt_ignore, "ro" }, -- cgit v0.10.2 From e419b4cc585680940bc42f8ca8a071d6023fb1bb Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Thu, 3 May 2012 10:16:43 -0700 Subject: vfs: make word-at-a-time accesses handle a non-existing page It turns out that there are more cases than CONFIG_DEBUG_PAGEALLOC that can have holes in the kernel address space: it seems to happen easily with Xen, and it looks like the AMD gart64 code will also punch holes dynamically. Actually hitting that case is still very unlikely, so just do the access, and take an exception and fix it up for the very unlikely case of it being a page-crosser with no next page. And hey, this abstraction might even help other architectures that have other issues with unaligned word accesses than the possible missing next page. IOW, this could do the byte order magic too. Peter Anvin fixed a thinko in the shifting for the exception case. Reported-and-tested-by: Jana Saout Cc: Peter Anvin Signed-off-by: Linus Torvalds diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 1d14cc6..c9866b0 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -81,7 +81,7 @@ config X86 select CLKEVT_I8253 select ARCH_HAVE_NMI_SAFE_CMPXCHG select GENERIC_IOMAP - select DCACHE_WORD_ACCESS if !DEBUG_PAGEALLOC + select DCACHE_WORD_ACCESS config INSTRUCTION_DECODER def_bool (KPROBES || PERF_EVENTS) diff --git a/arch/x86/include/asm/word-at-a-time.h b/arch/x86/include/asm/word-at-a-time.h index 6fe6767..e58f03b 100644 --- a/arch/x86/include/asm/word-at-a-time.h +++ b/arch/x86/include/asm/word-at-a-time.h @@ -43,4 +43,37 @@ static inline unsigned long has_zero(unsigned long a) return ((a - REPEAT_BYTE(0x01)) & ~a) & REPEAT_BYTE(0x80); } +/* + * Load an unaligned word from kernel space. + * + * In the (very unlikely) case of the word being a page-crosser + * and the next page not being mapped, take the exception and + * return zeroes in the non-existing part. + */ +static inline unsigned long load_unaligned_zeropad(const void *addr) +{ + unsigned long ret, dummy; + + asm( + "1:\tmov %2,%0\n" + "2:\n" + ".section .fixup,\"ax\"\n" + "3:\t" + "lea %2,%1\n\t" + "and %3,%1\n\t" + "mov (%1),%0\n\t" + "leal %2,%%ecx\n\t" + "andl %4,%%ecx\n\t" + "shll $3,%%ecx\n\t" + "shr %%cl,%0\n\t" + "jmp 2b\n" + ".previous\n" + _ASM_EXTABLE(1b, 3b) + :"=&r" (ret),"=&c" (dummy) + :"m" (*(unsigned long *)addr), + "i" (-sizeof(unsigned long)), + "i" (sizeof(unsigned long)-1)); + return ret; +} + #endif /* _ASM_WORD_AT_A_TIME_H */ diff --git a/fs/dcache.c b/fs/dcache.c index b60ddc4..b80531c 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -141,18 +141,29 @@ int proc_nr_dentry(ctl_table *table, int write, void __user *buffer, * Compare 2 name strings, return 0 if they match, otherwise non-zero. * The strings are both count bytes long, and count is non-zero. */ +#ifdef CONFIG_DCACHE_WORD_ACCESS + +#include +/* + * NOTE! 'cs' and 'scount' come from a dentry, so it has a + * aligned allocation for this particular component. We don't + * strictly need the load_unaligned_zeropad() safety, but it + * doesn't hurt either. + * + * In contrast, 'ct' and 'tcount' can be from a pathname, and do + * need the careful unaligned handling. + */ static inline int dentry_cmp(const unsigned char *cs, size_t scount, const unsigned char *ct, size_t tcount) { -#ifdef CONFIG_DCACHE_WORD_ACCESS unsigned long a,b,mask; if (unlikely(scount != tcount)) return 1; for (;;) { - a = *(unsigned long *)cs; - b = *(unsigned long *)ct; + a = load_unaligned_zeropad(cs); + b = load_unaligned_zeropad(ct); if (tcount < sizeof(unsigned long)) break; if (unlikely(a != b)) @@ -165,7 +176,13 @@ static inline int dentry_cmp(const unsigned char *cs, size_t scount, } mask = ~(~0ul << tcount*8); return unlikely(!!((a ^ b) & mask)); +} + #else + +static inline int dentry_cmp(const unsigned char *cs, size_t scount, + const unsigned char *ct, size_t tcount) +{ if (scount != tcount) return 1; @@ -177,9 +194,10 @@ static inline int dentry_cmp(const unsigned char *cs, size_t scount, tcount--; } while (tcount); return 0; -#endif } +#endif + static void __d_free(struct rcu_head *head) { struct dentry *dentry = container_of(head, struct dentry, d_u.d_rcu); diff --git a/fs/namei.c b/fs/namei.c index 0062dd1..c427919 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -1429,7 +1429,7 @@ unsigned int full_name_hash(const unsigned char *name, unsigned int len) unsigned long hash = 0; for (;;) { - a = *(unsigned long *)name; + a = load_unaligned_zeropad(name); if (len < sizeof(unsigned long)) break; hash += a; @@ -1459,7 +1459,7 @@ static inline unsigned long hash_name(const char *name, unsigned int *hashp) do { hash = (hash + a) * 9; len += sizeof(unsigned long); - a = *(unsigned long *)(name+len); + a = load_unaligned_zeropad(name+len); /* Do we have any NUL or '/' bytes in this word? */ mask = has_zero(a) | has_zero(a ^ REPEAT_BYTE('/')); } while (!mask); -- cgit v0.10.2 From 54b3a4d311c98ad94b737802a8b5f2c8c6bfd627 Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Thu, 3 May 2012 16:50:46 -0400 Subject: efivars: Improve variable validation Ben Hutchings pointed out that the validation in efivars was inadequate - most obviously, an entry with size 0 would server as a DoS against the kernel. Improve this based on his suggestions. Signed-off-by: Matthew Garrett Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c index 891e467..47408e8 100644 --- a/drivers/firmware/efivars.c +++ b/drivers/firmware/efivars.c @@ -192,18 +192,21 @@ utf16_strncmp(const efi_char16_t *a, const efi_char16_t *b, size_t len) } static bool -validate_device_path(struct efi_variable *var, int match, u8 *buffer, int len) +validate_device_path(struct efi_variable *var, int match, u8 *buffer, + unsigned long len) { struct efi_generic_dev_path *node; int offset = 0; node = (struct efi_generic_dev_path *)buffer; - while (offset < len) { - offset += node->length; + if (len < sizeof(*node)) + return false; - if (offset > len) - return false; + while (offset <= len - sizeof(*node) && + node->length >= sizeof(*node) && + node->length <= len - offset) { + offset += node->length; if ((node->type == EFI_DEV_END_PATH || node->type == EFI_DEV_END_PATH2) && @@ -222,7 +225,8 @@ validate_device_path(struct efi_variable *var, int match, u8 *buffer, int len) } static bool -validate_boot_order(struct efi_variable *var, int match, u8 *buffer, int len) +validate_boot_order(struct efi_variable *var, int match, u8 *buffer, + unsigned long len) { /* An array of 16-bit integers */ if ((len % 2) != 0) @@ -232,19 +236,27 @@ validate_boot_order(struct efi_variable *var, int match, u8 *buffer, int len) } static bool -validate_load_option(struct efi_variable *var, int match, u8 *buffer, int len) +validate_load_option(struct efi_variable *var, int match, u8 *buffer, + unsigned long len) { u16 filepathlength; - int i, desclength = 0; + int i, desclength = 0, namelen; + + namelen = utf16_strnlen(var->VariableName, sizeof(var->VariableName)); /* Either "Boot" or "Driver" followed by four digits of hex */ for (i = match; i < match+4; i++) { - if (hex_to_bin(var->VariableName[i] & 0xff) < 0) + if (var->VariableName[i] > 127 || + hex_to_bin(var->VariableName[i] & 0xff) < 0) return true; } - /* A valid entry must be at least 6 bytes */ - if (len < 6) + /* Reject it if there's 4 digits of hex and then further content */ + if (namelen > match + 4) + return false; + + /* A valid entry must be at least 8 bytes */ + if (len < 8) return false; filepathlength = buffer[4] | buffer[5] << 8; @@ -253,7 +265,7 @@ validate_load_option(struct efi_variable *var, int match, u8 *buffer, int len) * There's no stored length for the description, so it has to be * found by hand */ - desclength = utf16_strsize((efi_char16_t *)(buffer + 6), len) + 2; + desclength = utf16_strsize((efi_char16_t *)(buffer + 6), len - 6) + 2; /* Each boot entry must have a descriptor */ if (!desclength) @@ -275,7 +287,8 @@ validate_load_option(struct efi_variable *var, int match, u8 *buffer, int len) } static bool -validate_uint16(struct efi_variable *var, int match, u8 *buffer, int len) +validate_uint16(struct efi_variable *var, int match, u8 *buffer, + unsigned long len) { /* A single 16-bit integer */ if (len != 2) @@ -285,7 +298,8 @@ validate_uint16(struct efi_variable *var, int match, u8 *buffer, int len) } static bool -validate_ascii_string(struct efi_variable *var, int match, u8 *buffer, int len) +validate_ascii_string(struct efi_variable *var, int match, u8 *buffer, + unsigned long len) { int i; @@ -303,7 +317,7 @@ validate_ascii_string(struct efi_variable *var, int match, u8 *buffer, int len) struct variable_validate { char *name; bool (*validate)(struct efi_variable *var, int match, u8 *data, - int len); + unsigned long len); }; static const struct variable_validate variable_validate[] = { @@ -325,7 +339,7 @@ static const struct variable_validate variable_validate[] = { }; static bool -validate_var(struct efi_variable *var, u8 *data, int len) +validate_var(struct efi_variable *var, u8 *data, unsigned long len) { int i; u16 *unicode_name = var->VariableName; -- cgit v0.10.2 From d8f2799b105a24bb0bbd3380a0d56e6348484058 Mon Sep 17 00:00:00 2001 From: Stefan Metzmacher Date: Fri, 4 May 2012 00:19:28 +0200 Subject: fs/cifs: fix parsing of dfs referrals MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The problem was that the first referral was parsed more than once and so the caller tried the same referrals multiple times. The problem was introduced partly by commit 066ce6899484d9026acd6ba3a8dbbedb33d7ae1b, where 'ref += le16_to_cpu(ref->Size);' got lost, but that was also wrong... Cc: Signed-off-by: Stefan Metzmacher Tested-by: Björn Jacke Reviewed-by: Jeff Layton Signed-off-by: Steve French diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index f52c5ab..da2f544 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -4844,8 +4844,12 @@ parse_DFS_referrals(TRANSACTION2_GET_DFS_REFER_RSP *pSMBr, max_len = data_end - temp; node->node_name = cifs_strndup_from_utf16(temp, max_len, is_unicode, nls_codepage); - if (!node->node_name) + if (!node->node_name) { rc = -ENOMEM; + goto parse_DFS_referrals_exit; + } + + ref++; } parse_DFS_referrals_exit: -- cgit v0.10.2 From b16b1b6cd052acbacc0a15f934bca9b354534d48 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Fri, 4 May 2012 17:03:18 +1000 Subject: md/bitmap: fix calculation of 'chunks' - missing shift. commit 61a0d80c "md/bitmap: discard CHUNK_BLOCK_SHIFT macro" replaced CHUNK_BLOCK_RATIO() by the same text that was replacing CHUNK_BLOCK_SHIFT() - which is clearly wrong. The result is that 'chunks' is often too small by 1, which can sometimes result in a crash (not sure how). So use the correct replacement, and get rid of CHUNK_BLOCK_RATIO which is no longe used. Reported-by: Karl Newman Tested-by: Karl Newman Signed-off-by: NeilBrown diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index 97e73e5..17e2b47 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -1727,8 +1727,7 @@ int bitmap_create(struct mddev *mddev) bitmap->chunkshift = (ffz(~mddev->bitmap_info.chunksize) - BITMAP_BLOCK_SHIFT); - /* now that chunksize and chunkshift are set, we can use these macros */ - chunks = (blocks + bitmap->chunkshift - 1) >> + chunks = (blocks + (1 << bitmap->chunkshift) - 1) >> bitmap->chunkshift; pages = (chunks + PAGE_COUNTER_RATIO - 1) / PAGE_COUNTER_RATIO; diff --git a/drivers/md/bitmap.h b/drivers/md/bitmap.h index 55ca5ae..b44b0aba 100644 --- a/drivers/md/bitmap.h +++ b/drivers/md/bitmap.h @@ -101,9 +101,6 @@ typedef __u16 bitmap_counter_t; #define BITMAP_BLOCK_SHIFT 9 -/* how many blocks per chunk? (this is variable) */ -#define CHUNK_BLOCK_RATIO(bitmap) ((bitmap)->mddev->bitmap_info.chunksize >> BITMAP_BLOCK_SHIFT) - #endif /* -- cgit v0.10.2 From c994ead62ce9599e56344be9b3bead08f242aa79 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 3 May 2012 17:06:28 -0400 Subject: drm/radeon: clarify and extend wb setup on APUs and NI+ asics MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Use family rather than DCE check for clarity, also always use wb on APUs, there will never be AGP variants. Signed-off-by: Alex Deucher Reviewed-by: Michel Dänzer Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index ea7df16..5992502 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -241,8 +241,8 @@ int radeon_wb_init(struct radeon_device *rdev) rdev->wb.use_event = true; } } - /* always use writeback/events on NI */ - if (ASIC_IS_DCE5(rdev)) { + /* always use writeback/events on NI, APUs */ + if (rdev->family >= CHIP_PALM) { rdev->wb.enabled = true; rdev->wb.use_event = true; } -- cgit v0.10.2 From fad9365bcc2a69ae16adc092e8ac192354980665 Mon Sep 17 00:00:00 2001 From: Oleg Matcovschi Date: Tue, 24 Apr 2012 19:02:02 -0700 Subject: ASoC: omap-pcm: Free dma buffers in case of error. Signed-off-by: Oleg Matcovschi Acked-by: Peter Ujfalusi Acked-by: Jarkko Nikula Acked-by: Mark Brown Signed-off-by: Liam Girdwood diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c index a59bd35..5a649da 100644 --- a/sound/soc/omap/omap-pcm.c +++ b/sound/soc/omap/omap-pcm.c @@ -401,6 +401,10 @@ static int omap_pcm_new(struct snd_soc_pcm_runtime *rtd) } out: + /* free preallocated buffers in case of error */ + if (ret) + omap_pcm_free_dma_buffers(pcm); + return ret; } -- cgit v0.10.2 From e5846fc665d1c3dd32d877febe7402ccd583b8a1 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Thu, 3 May 2012 12:08:48 -0400 Subject: Btrfs: Add properly locking around add_root_to_dirty_list add_root_to_dirty_list happens once at the very beginning of the transaction, but it is still racey. Signed-off-by: Chris Mason diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index e801f22..086303b9 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -220,10 +220,12 @@ struct extent_buffer *btrfs_read_lock_root_node(struct btrfs_root *root) */ static void add_root_to_dirty_list(struct btrfs_root *root) { + spin_lock(&root->fs_info->trans_lock); if (root->track_dirty && list_empty(&root->dirty_list)) { list_add(&root->dirty_list, &root->fs_info->dirty_cowonly_roots); } + spin_unlock(&root->fs_info->trans_lock); } /* -- cgit v0.10.2 From 17de39ac17bf99b8bf0d819d13668d5048836efc Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Fri, 4 May 2012 15:16:06 -0400 Subject: Btrfs: fix page leak when allocing extent buffers If we happen to alloc a extent buffer and then alloc a page and notice that page is already attached to an extent buffer, we will only unlock it and free our existing eb. Any pages currently attached to that eb will be properly freed, but we don't do the page_cache_release() on the page where we noticed the other extent buffer which can cause us to leak pages and I hope cause the weird issues we've been seeing in this area. Thanks, Signed-off-by: Josef Bacik Signed-off-by: Chris Mason diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 0c23e57..2fb52c2 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -4120,6 +4120,7 @@ struct extent_buffer *alloc_extent_buffer(struct extent_io_tree *tree, if (atomic_inc_not_zero(&exists->refs)) { spin_unlock(&mapping->private_lock); unlock_page(p); + page_cache_release(p); mark_extent_buffer_accessed(exists); goto free_eb; } @@ -4199,8 +4200,7 @@ free_eb: unlock_page(eb->pages[i]); } - if (!atomic_dec_and_test(&eb->refs)) - return exists; + WARN_ON(!atomic_dec_and_test(&eb->refs)); btrfs_release_extent_buffer(eb); return exists; } -- cgit v0.10.2 From d04b1debc92535453df2494d0b019edf0bb91003 Mon Sep 17 00:00:00 2001 From: Alexander Block Date: Fri, 4 May 2012 15:16:06 -0400 Subject: btrfs: Fix mismatching struct members in ioctl.h Fix the size members of btrfs_ioctl_ino_path_args and btrfs_ioctl_logical_ino_args. The user space btrfs-progs utilities used __u64 and the kernel headers used __u32 before. Signed-off-by: Alexander Block Signed-off-by: Chris Mason diff --git a/fs/btrfs/ioctl.h b/fs/btrfs/ioctl.h index 4f69028..086e6bd 100644 --- a/fs/btrfs/ioctl.h +++ b/fs/btrfs/ioctl.h @@ -252,7 +252,7 @@ struct btrfs_data_container { struct btrfs_ioctl_ino_path_args { __u64 inum; /* in */ - __u32 size; /* in */ + __u64 size; /* in */ __u64 reserved[4]; /* struct btrfs_data_container *fspath; out */ __u64 fspath; /* out */ @@ -260,7 +260,7 @@ struct btrfs_ioctl_ino_path_args { struct btrfs_ioctl_logical_ino_args { __u64 logical; /* in */ - __u32 size; /* in */ + __u64 size; /* in */ __u64 reserved[4]; /* struct btrfs_data_container *inodes; out */ __u64 inodes; -- cgit v0.10.2 From ea9947b4395fa34666086b2fa6f686e94903e047 Mon Sep 17 00:00:00 2001 From: Stefan Behrens Date: Fri, 4 May 2012 15:16:07 -0400 Subject: Btrfs: fix crash in scrub repair code when device is missing Fix that when scrub tries to repair an I/O or checksum error and one of the devices containing the mirror is missing, it crashes in bio_add_page because the bdev is a NULL pointer for missing devices. Reported-by: Marco L. Crociani Signed-off-by: Stefan Behrens Signed-off-by: Chris Mason diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c index b679bf6..7e487be 100644 --- a/fs/btrfs/scrub.c +++ b/fs/btrfs/scrub.c @@ -998,6 +998,7 @@ static int scrub_setup_recheck_block(struct scrub_dev *sdev, page = sblock->pagev + page_index; page->logical = logical; page->physical = bbio->stripes[mirror_index].physical; + /* for missing devices, bdev is NULL */ page->bdev = bbio->stripes[mirror_index].dev->bdev; page->mirror_num = mirror_index + 1; page->page = alloc_page(GFP_NOFS); @@ -1042,6 +1043,12 @@ static int scrub_recheck_block(struct btrfs_fs_info *fs_info, struct scrub_page *page = sblock->pagev + page_num; DECLARE_COMPLETION_ONSTACK(complete); + if (page->bdev == NULL) { + page->io_error = 1; + sblock->no_io_error_seen = 0; + continue; + } + BUG_ON(!page->page); bio = bio_alloc(GFP_NOFS, 1); if (!bio) -- cgit v0.10.2 From d1d0589a565a2528a044cfd680141c3e2db18d0a Mon Sep 17 00:00:00 2001 From: Bjarke Istrup Pedersen Date: Fri, 4 May 2012 14:01:45 -0700 Subject: arch/x86/platform/geode/net5501.c: change active_low to 0 for LED driver It seems that there was an error with the active_low = 1 for the LED, since it should be set to 0 (meaning that active is high, since 0 is false, hence the confusion. The wiki article about it confuses it, since it contradicts itself, regarding what turns on the LED. I have tested 3.4-rc2 on my net5501 with this patch, and it makes the LED behave correctly, where "none" turns it off, and "default-on" turns it on, when echoed onto the trigger "file" in /sys/class/leds. Signed-off-by: Bjarke Istrup Pedersen Link: http://lkml.kernel.org/r/20120504210146.62186A018B@akpm.mtv.corp.google.com Cc: Philip Prindeville Signed-off-by: Andrew Morton Signed-off-by: H. Peter Anvin diff --git a/arch/x86/platform/geode/net5501.c b/arch/x86/platform/geode/net5501.c index 66d377e..646e3b5 100644 --- a/arch/x86/platform/geode/net5501.c +++ b/arch/x86/platform/geode/net5501.c @@ -63,7 +63,7 @@ static struct gpio_led net5501_leds[] = { .name = "net5501:1", .gpio = 6, .default_trigger = "default-on", - .active_low = 1, + .active_low = 0, }, }; -- cgit v0.10.2 From ab27a20e6212cd1d96d813352b47e1fc1cfd01db Mon Sep 17 00:00:00 2001 From: Yong Wang Date: Fri, 4 May 2012 14:02:44 -0700 Subject: intel_mid_powerbtn: mark irq as IRQF_NO_SUSPEND So that the power button still wakes up the platform. Signed-off-by: Pierre Tardy Link: http://lkml.kernel.org/r/20120504210244.F2EA5A018B@akpm.mtv.corp.google.com Tested-by: Kangkai Yin Tested-by: Yong Wang Signed-off-by: Kirill A. Shutemov Signed-off-by: Alan Cox Cc: Matthew Garrett Signed-off-by: Andrew Morton Signed-off-by: H. Peter Anvin diff --git a/drivers/platform/x86/intel_mid_powerbtn.c b/drivers/platform/x86/intel_mid_powerbtn.c index 0a3594c..bcbad84 100644 --- a/drivers/platform/x86/intel_mid_powerbtn.c +++ b/drivers/platform/x86/intel_mid_powerbtn.c @@ -78,7 +78,7 @@ static int __devinit mfld_pb_probe(struct platform_device *pdev) input_set_capability(input, EV_KEY, KEY_POWER); - error = request_threaded_irq(irq, NULL, mfld_pb_isr, 0, + error = request_threaded_irq(irq, NULL, mfld_pb_isr, IRQF_NO_SUSPEND, DRIVER_NAME, input); if (error) { dev_err(&pdev->dev, "Unable to request irq %d for mfld power" -- cgit v0.10.2 From 2f624278626677bfaf73fef97f86b37981621f5c Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 4 May 2012 14:46:02 -0700 Subject: Fix __read_seqcount_begin() to use ACCESS_ONCE for sequence value read We really need to use a ACCESS_ONCE() on the sequence value read in __read_seqcount_begin(), because otherwise the compiler might end up reloading the value in between the test and the return of it. As a result, it might end up returning an odd value (which means that a write is in progress). If the reader is then fast enough that that odd value is still the current one when the read_seqcount_retry() is done, we might end up with a "successful" read sequence, even despite the concurrent write being active. In practice this probably never really happens - there just isn't anything else going on around the read of the sequence count, and the common case is that we end up having a read barrier immediately afterwards. So the code sequence in which gcc might decide to reaload from memory is small, and there's no reason to believe it would ever actually do the reload. But if the compiler ever were to decide to do so, it would be incredibly annoying to debug. Let's just make sure. Cc: stable@kernel.org Signed-off-by: Linus Torvalds diff --git a/include/linux/seqlock.h b/include/linux/seqlock.h index c6db9fb..bb1fac5 100644 --- a/include/linux/seqlock.h +++ b/include/linux/seqlock.h @@ -141,7 +141,7 @@ static inline unsigned __read_seqcount_begin(const seqcount_t *s) unsigned ret; repeat: - ret = s->sequence; + ret = ACCESS_ONCE(s->sequence); if (unlikely(ret & 1)) { cpu_relax(); goto repeat; -- cgit v0.10.2 From 4f988f152ee087831ea5c1c77cda4454cacc052c Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 4 May 2012 15:13:54 -0700 Subject: seqlock: add 'raw_seqcount_begin()' function The normal read_seqcount_begin() function will wait for any current writers to exit their critical region by looping until the sequence count is even. That "wait for sequence count to stabilize" is the right thing to do if the read-locker will just retry the whole operation on contention: no point in doing a potentially expensive reader sequence if we know at the beginning that we'll just end up re-doing it all. HOWEVER. Some users don't actually retry the operation, but instead will abort and do the operation with proper locking. So the sequence count case may be the optimistic quick case, but in the presense of writers you may want to do full locking in order to guarantee forward progress. The prime example of this would be the RCU name lookup. And in that case, you may well be better off without the "retry early", and are in a rush to instead get to the failure handling. Thus this "raw" interface that just returns the sequence number without testing it - it just forces the low bit to zero so that read_seqcount_retry() will always fail such a "active concurrent writer" scenario. Signed-off-by: Linus Torvalds diff --git a/include/linux/seqlock.h b/include/linux/seqlock.h index bb1fac5..600060e2 100644 --- a/include/linux/seqlock.h +++ b/include/linux/seqlock.h @@ -166,6 +166,27 @@ static inline unsigned read_seqcount_begin(const seqcount_t *s) } /** + * raw_seqcount_begin - begin a seq-read critical section + * @s: pointer to seqcount_t + * Returns: count to be passed to read_seqcount_retry + * + * raw_seqcount_begin opens a read critical section of the given seqcount. + * Validity of the critical section is tested by checking read_seqcount_retry + * function. + * + * Unlike read_seqcount_begin(), this function will not wait for the count + * to stabilize. If a writer is active when we begin, we will fail the + * read_seqcount_retry() instead of stabilizing at the beginning of the + * critical section. + */ +static inline unsigned raw_seqcount_begin(const seqcount_t *s) +{ + unsigned ret = ACCESS_ONCE(s->sequence); + smp_rmb(); + return ret & ~1; +} + +/** * __read_seqcount_retry - end a seq-read critical section (without barrier) * @s: pointer to seqcount_t * @start: count, from read_seqcount_begin -- cgit v0.10.2 From a03a09b2245b4aa255760796e0c0d05b5d79b2a8 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Fri, 4 May 2012 12:04:17 -0400 Subject: CPU frequency drivers MAINTAINERS update Remove myself as cpufreq maintainer. x86 driver changes can go through the regular x86/ACPI trees. ARM driver changes through the ARM trees. cpufreq core changes are rare these days, and can just go to lkml/direct. Signed-off-by: Dave Jones Signed-off-by: Linus Torvalds diff --git a/MAINTAINERS b/MAINTAINERS index 57bc677..7071633 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1968,10 +1968,7 @@ S: Maintained F: drivers/net/ethernet/ti/cpmac.c CPU FREQUENCY DRIVERS -M: Dave Jones L: cpufreq@vger.kernel.org -W: http://www.codemonkey.org.uk/projects/cpufreq/ -T: git git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq.git S: Maintained F: drivers/cpufreq/ F: include/linux/cpufreq.h -- cgit v0.10.2 From 6f24f892871acc47b40dd594c63606a17c714f77 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Fri, 4 May 2012 12:09:39 -0700 Subject: hfsplus: Fix potential buffer overflows Commit ec81aecb2966 ("hfs: fix a potential buffer overflow") fixed a few potential buffer overflows in the hfs filesystem. But as Timo Warns pointed out, these changes also need to be made on the hfsplus filesystem as well. Reported-by: Timo Warns Acked-by: WANG Cong Cc: Alexey Khoroshilov Cc: Miklos Szeredi Cc: Sage Weil Cc: Eugene Teo Cc: Roman Zippel Cc: Al Viro Cc: Christoph Hellwig Cc: Alexey Dobriyan Cc: Dave Anderson Cc: stable Cc: Andrew Morton Signed-off-by: Greg Kroah-Hartman Signed-off-by: Linus Torvalds diff --git a/fs/hfsplus/catalog.c b/fs/hfsplus/catalog.c index 4dfbfec..ec2a9c2 100644 --- a/fs/hfsplus/catalog.c +++ b/fs/hfsplus/catalog.c @@ -366,6 +366,10 @@ int hfsplus_rename_cat(u32 cnid, err = hfs_brec_find(&src_fd); if (err) goto out; + if (src_fd.entrylength > sizeof(entry) || src_fd.entrylength < 0) { + err = -EIO; + goto out; + } hfs_bnode_read(src_fd.bnode, &entry, src_fd.entryoffset, src_fd.entrylength); diff --git a/fs/hfsplus/dir.c b/fs/hfsplus/dir.c index 88e155f..26b53fb 100644 --- a/fs/hfsplus/dir.c +++ b/fs/hfsplus/dir.c @@ -150,6 +150,11 @@ static int hfsplus_readdir(struct file *filp, void *dirent, filldir_t filldir) filp->f_pos++; /* fall through */ case 1: + if (fd.entrylength > sizeof(entry) || fd.entrylength < 0) { + err = -EIO; + goto out; + } + hfs_bnode_read(fd.bnode, &entry, fd.entryoffset, fd.entrylength); if (be16_to_cpu(entry.type) != HFSPLUS_FOLDER_THREAD) { @@ -181,6 +186,12 @@ static int hfsplus_readdir(struct file *filp, void *dirent, filldir_t filldir) err = -EIO; goto out; } + + if (fd.entrylength > sizeof(entry) || fd.entrylength < 0) { + err = -EIO; + goto out; + } + hfs_bnode_read(fd.bnode, &entry, fd.entryoffset, fd.entrylength); type = be16_to_cpu(entry.type); -- cgit v0.10.2 From 1cc0c998fdf2cb665d625fb565a0d6db5c81c639 Mon Sep 17 00:00:00 2001 From: Lin Ming Date: Mon, 23 Apr 2012 09:03:49 +0800 Subject: ACPI: Fix D3hot v D3cold confusion Before this patch, ACPI_STATE_D3 incorrectly referenced D3hot in some places, but D3cold in other places. After this patch, ACPI_STATE_D3 always means ACPI_STATE_D3_COLD; and all references to D3hot use ACPI_STATE_D3_HOT. ACPI's _PR3 method is used to enter both D3hot and D3cold states. What distinguishes D3hot from D3cold is the presence _PR3 (Power Resources for D3hot) If these resources are all ON, then the state is D3hot. If _PR3 is not present, or all _PR0 resources for the devices are OFF, then the state is D3cold. This patch applies after Linux-3.4-rc1. A future syntax cleanup may remove ACPI_STATE_D3 to emphasize that it always means ACPI_STATE_D3_COLD. Signed-off-by: Lin Ming Acked-by: Rafael J. Wysocki Reviewed-by: Aaron Lu Signed-off-by: Len Brown diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index 7049a7d..330bb4d 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -631,7 +631,7 @@ int acpi_power_get_inferred_state(struct acpi_device *device, int *state) * We know a device's inferred power state when all the resources * required for a given D-state are 'on'. */ - for (i = ACPI_STATE_D0; i < ACPI_STATE_D3; i++) { + for (i = ACPI_STATE_D0; i < ACPI_STATE_D3_HOT; i++) { list = &device->power.states[i].resources; if (list->count < 1) continue; diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 767e2dc..7417267 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -869,7 +869,7 @@ static int acpi_bus_get_power_flags(struct acpi_device *device) /* * Enumerate supported power management states */ - for (i = ACPI_STATE_D0; i <= ACPI_STATE_D3; i++) { + for (i = ACPI_STATE_D0; i <= ACPI_STATE_D3_HOT; i++) { struct acpi_device_power_state *ps = &device->power.states[i]; char object_name[5] = { '_', 'P', 'R', '0' + i, '\0' }; @@ -884,21 +884,18 @@ static int acpi_bus_get_power_flags(struct acpi_device *device) acpi_bus_add_power_resource(ps->resources.handles[j]); } - /* The exist of _PR3 indicates D3Cold support */ - if (i == ACPI_STATE_D3) { - status = acpi_get_handle(device->handle, object_name, &handle); - if (ACPI_SUCCESS(status)) - device->power.states[ACPI_STATE_D3_COLD].flags.valid = 1; - } - /* Evaluate "_PSx" to see if we can do explicit sets */ object_name[2] = 'S'; status = acpi_get_handle(device->handle, object_name, &handle); if (ACPI_SUCCESS(status)) ps->flags.explicit_set = 1; - /* State is valid if we have some power control */ - if (ps->resources.count || ps->flags.explicit_set) + /* + * State is valid if there are means to put the device into it. + * D3hot is only valid if _PR3 present. + */ + if (ps->resources.count || + (ps->flags.explicit_set && i < ACPI_STATE_D3_HOT)) ps->flags.valid = 1; ps->power = -1; /* Unknown - driver assigned */ diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index 0f150f2..1929c0c 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -200,7 +200,7 @@ static pci_power_t acpi_pci_choose_state(struct pci_dev *pdev) return PCI_D1; case ACPI_STATE_D2: return PCI_D2; - case ACPI_STATE_D3: + case ACPI_STATE_D3_HOT: return PCI_D3hot; case ACPI_STATE_D3_COLD: return PCI_D3cold; @@ -223,7 +223,7 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state) [PCI_D0] = ACPI_STATE_D0, [PCI_D1] = ACPI_STATE_D1, [PCI_D2] = ACPI_STATE_D2, - [PCI_D3hot] = ACPI_STATE_D3, + [PCI_D3hot] = ACPI_STATE_D3_HOT, [PCI_D3cold] = ACPI_STATE_D3 }; int error = -EINVAL; diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h index eba6604..e8bcc47 100644 --- a/include/acpi/actypes.h +++ b/include/acpi/actypes.h @@ -499,9 +499,10 @@ typedef u64 acpi_integer; #define ACPI_STATE_D0 (u8) 0 #define ACPI_STATE_D1 (u8) 1 #define ACPI_STATE_D2 (u8) 2 -#define ACPI_STATE_D3 (u8) 3 -#define ACPI_STATE_D3_COLD (u8) 4 -#define ACPI_D_STATES_MAX ACPI_STATE_D3_COLD +#define ACPI_STATE_D3_HOT (u8) 3 +#define ACPI_STATE_D3 (u8) 4 +#define ACPI_STATE_D3_COLD ACPI_STATE_D3 +#define ACPI_D_STATES_MAX ACPI_STATE_D3 #define ACPI_D_STATE_COUNT 5 #define ACPI_STATE_C0 (u8) 0 -- cgit v0.10.2 From 377485f6244af255b04d662cf19cddbbc4ae4310 Mon Sep 17 00:00:00 2001 From: Sasha Levin Date: Sat, 5 May 2012 17:06:35 +0200 Subject: init: don't try mounting device as nfs root unless type fully matches Currently, we'll try mounting any device who's major device number is UNNAMED_MAJOR as NFS root. This would happen for non-NFS devices as well (such as 9p devices) but it wouldn't cause any issues since mounting the device as NFS would fail quickly and the code proceeded to doing the proper mount: [ 101.522716] VFS: Unable to mount root fs via NFS, trying floppy. [ 101.534499] VFS: Mounted root (9p filesystem) on device 0:18. Commit 6829a048102a ("NFS: Retry mounting NFSROOT") introduced retries when mounting NFS root, which means that now we don't immediately fail and instead it takes an additional 90+ seconds until we stop retrying, which has revealed the issue this patch fixes. This meant that it would take an additional 90 seconds to boot when we're not using a device type which gets detected in order before NFS. This patch modifies the NFS type check to require device type to be 'Root_NFS' instead of requiring the device to have an UNNAMED_MAJOR major. This makes boot process cleaner since we now won't go through the NFS mounting code at all when the device isn't an NFS root ("/dev/nfs"). Signed-off-by: Sasha Levin Signed-off-by: Linus Torvalds diff --git a/init/do_mounts.c b/init/do_mounts.c index 0e93f92..42b0707 100644 --- a/init/do_mounts.c +++ b/init/do_mounts.c @@ -472,7 +472,7 @@ void __init change_floppy(char *fmt, ...) void __init mount_root(void) { #ifdef CONFIG_ROOT_NFS - if (MAJOR(ROOT_DEV) == UNNAMED_MAJOR) { + if (ROOT_DEV == Root_NFS) { if (mount_nfs_root()) return; -- cgit v0.10.2 From 49a5f3cf6a956360bb43e5f8d0c592a8daea8ebd Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Sat, 5 May 2012 22:49:10 +0200 Subject: TTY: pdc_cons, fix regression in close The test in pdc_console_tty_close '!tty->count' was always wrong because tty->count is decremented after tty->ops->close is called and thus can never be zero. Hence the 'then' branch was never executed and the timer never deleted. This did not matter until commit 5dd5bc40f3b6 ("TTY: pdc_cons, use tty_port"). There we needed to set TTY in tty_port to NULL, but this never happened due to the bug above. So change the test to really trigger at the last close by changing the condition to 'tty->count == 1'. Well, the driver should not touch tty->count at all. It should use tty_port->count and count open count there itself. Signed-off-by: Jiri Slaby Reported-and-tested-by: Mikulas Patocka Cc: Kyle McMartin Cc: Helge Deller Cc: "James E.J. Bottomley" Signed-off-by: Linus Torvalds diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c index 4f00459..0b33933 100644 --- a/arch/parisc/kernel/pdc_cons.c +++ b/arch/parisc/kernel/pdc_cons.c @@ -104,7 +104,7 @@ static int pdc_console_tty_open(struct tty_struct *tty, struct file *filp) static void pdc_console_tty_close(struct tty_struct *tty, struct file *filp) { - if (!tty->count) { + if (tty->count == 1) { del_timer_sync(&pdc_console_timer); tty_port_tty_set(&tty_port, NULL); } -- cgit v0.10.2 From b9fab919b748c7b39c19ff236ed6c5682c266dde Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Sun, 6 May 2012 07:23:47 -0400 Subject: Btrfs: avoid sleeping in verify_parent_transid while atomic verify_parent_transid needs to lock the extent range to make sure no IO is underway, and so it can safely clear the uptodate bits if our checks fail. But, a few callers are using it with spinlocks held. Most of the time, the generation numbers are going to match, and we don't want to switch to a blocking lock just for the error case. This adds an atomic flag to verify_parent_transid, and changes it to return EAGAIN if it needs to block to properly verifiy things. Signed-off-by: Chris Mason diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index 086303b9..4106264 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -725,7 +725,7 @@ int btrfs_realloc_node(struct btrfs_trans_handle *trans, cur = btrfs_find_tree_block(root, blocknr, blocksize); if (cur) - uptodate = btrfs_buffer_uptodate(cur, gen); + uptodate = btrfs_buffer_uptodate(cur, gen, 0); else uptodate = 0; if (!cur || !uptodate) { @@ -1360,7 +1360,12 @@ static noinline int reada_for_balance(struct btrfs_root *root, block1 = btrfs_node_blockptr(parent, slot - 1); gen = btrfs_node_ptr_generation(parent, slot - 1); eb = btrfs_find_tree_block(root, block1, blocksize); - if (eb && btrfs_buffer_uptodate(eb, gen)) + /* + * if we get -eagain from btrfs_buffer_uptodate, we + * don't want to return eagain here. That will loop + * forever + */ + if (eb && btrfs_buffer_uptodate(eb, gen, 1) != 0) block1 = 0; free_extent_buffer(eb); } @@ -1368,7 +1373,7 @@ static noinline int reada_for_balance(struct btrfs_root *root, block2 = btrfs_node_blockptr(parent, slot + 1); gen = btrfs_node_ptr_generation(parent, slot + 1); eb = btrfs_find_tree_block(root, block2, blocksize); - if (eb && btrfs_buffer_uptodate(eb, gen)) + if (eb && btrfs_buffer_uptodate(eb, gen, 1) != 0) block2 = 0; free_extent_buffer(eb); } @@ -1506,8 +1511,9 @@ read_block_for_search(struct btrfs_trans_handle *trans, tmp = btrfs_find_tree_block(root, blocknr, blocksize); if (tmp) { - if (btrfs_buffer_uptodate(tmp, 0)) { - if (btrfs_buffer_uptodate(tmp, gen)) { + /* first we do an atomic uptodate check */ + if (btrfs_buffer_uptodate(tmp, 0, 1) > 0) { + if (btrfs_buffer_uptodate(tmp, gen, 1) > 0) { /* * we found an up to date block without * sleeping, return @@ -1525,8 +1531,9 @@ read_block_for_search(struct btrfs_trans_handle *trans, free_extent_buffer(tmp); btrfs_set_path_blocking(p); + /* now we're allowed to do a blocking uptodate check */ tmp = read_tree_block(root, blocknr, blocksize, gen); - if (tmp && btrfs_buffer_uptodate(tmp, gen)) { + if (tmp && btrfs_buffer_uptodate(tmp, gen, 0) > 0) { *eb_ret = tmp; return 0; } @@ -1561,7 +1568,7 @@ read_block_for_search(struct btrfs_trans_handle *trans, * and give up so that our caller doesn't loop forever * on our EAGAINs. */ - if (!btrfs_buffer_uptodate(tmp, 0)) + if (!btrfs_buffer_uptodate(tmp, 0, 0)) ret = -EIO; free_extent_buffer(tmp); } @@ -4045,7 +4052,7 @@ again: tmp = btrfs_find_tree_block(root, blockptr, btrfs_level_size(root, level - 1)); - if (tmp && btrfs_buffer_uptodate(tmp, gen)) { + if (tmp && btrfs_buffer_uptodate(tmp, gen, 1) > 0) { free_extent_buffer(tmp); break; } @@ -4168,7 +4175,8 @@ next: struct extent_buffer *cur; cur = btrfs_find_tree_block(root, blockptr, btrfs_level_size(root, level - 1)); - if (!cur || !btrfs_buffer_uptodate(cur, gen)) { + if (!cur || + btrfs_buffer_uptodate(cur, gen, 1) <= 0) { slot++; if (cur) free_extent_buffer(cur); diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index d0c969b..a7ffc88 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -323,7 +323,8 @@ static int csum_tree_block(struct btrfs_root *root, struct extent_buffer *buf, * in the wrong place. */ static int verify_parent_transid(struct extent_io_tree *io_tree, - struct extent_buffer *eb, u64 parent_transid) + struct extent_buffer *eb, u64 parent_transid, + int atomic) { struct extent_state *cached_state = NULL; int ret; @@ -331,6 +332,9 @@ static int verify_parent_transid(struct extent_io_tree *io_tree, if (!parent_transid || btrfs_header_generation(eb) == parent_transid) return 0; + if (atomic) + return -EAGAIN; + lock_extent_bits(io_tree, eb->start, eb->start + eb->len - 1, 0, &cached_state); if (extent_buffer_uptodate(eb) && @@ -372,7 +376,8 @@ static int btree_read_extent_buffer_pages(struct btrfs_root *root, ret = read_extent_buffer_pages(io_tree, eb, start, WAIT_COMPLETE, btree_get_extent, mirror_num); - if (!ret && !verify_parent_transid(io_tree, eb, parent_transid)) + if (!ret && !verify_parent_transid(io_tree, eb, + parent_transid, 0)) break; /* @@ -1202,7 +1207,7 @@ static int __must_check find_and_setup_root(struct btrfs_root *tree_root, root->commit_root = NULL; root->node = read_tree_block(root, btrfs_root_bytenr(&root->root_item), blocksize, generation); - if (!root->node || !btrfs_buffer_uptodate(root->node, generation)) { + if (!root->node || !btrfs_buffer_uptodate(root->node, generation, 0)) { free_extent_buffer(root->node); root->node = NULL; return -EIO; @@ -3143,7 +3148,8 @@ int close_ctree(struct btrfs_root *root) return 0; } -int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid) +int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid, + int atomic) { int ret; struct inode *btree_inode = buf->pages[0]->mapping->host; @@ -3153,7 +3159,9 @@ int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid) return ret; ret = verify_parent_transid(&BTRFS_I(btree_inode)->io_tree, buf, - parent_transid); + parent_transid, atomic); + if (ret == -EAGAIN) + return ret; return !ret; } diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h index a7ace1a..ab1830a 100644 --- a/fs/btrfs/disk-io.h +++ b/fs/btrfs/disk-io.h @@ -66,7 +66,8 @@ void btrfs_btree_balance_dirty(struct btrfs_root *root, unsigned long nr); void __btrfs_btree_balance_dirty(struct btrfs_root *root, unsigned long nr); void btrfs_free_fs_root(struct btrfs_fs_info *fs_info, struct btrfs_root *root); void btrfs_mark_buffer_dirty(struct extent_buffer *buf); -int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid); +int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid, + int atomic); int btrfs_set_buffer_uptodate(struct extent_buffer *buf); int btrfs_read_buffer(struct extent_buffer *buf, u64 parent_transid); u32 btrfs_csum_data(struct btrfs_root *root, char *data, u32 seed, size_t len); diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 6fc2e6f..49fd7b6 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -6568,7 +6568,7 @@ static noinline int do_walk_down(struct btrfs_trans_handle *trans, goto skip; } - if (!btrfs_buffer_uptodate(next, generation)) { + if (!btrfs_buffer_uptodate(next, generation, 0)) { btrfs_tree_unlock(next); free_extent_buffer(next); next = NULL; diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index d017283..eb1ae90 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -279,7 +279,7 @@ static int process_one_buffer(struct btrfs_root *log, log->fs_info->extent_root, eb->start, eb->len); - if (btrfs_buffer_uptodate(eb, gen)) { + if (btrfs_buffer_uptodate(eb, gen, 0)) { if (wc->write) btrfs_write_tree_block(eb); if (wc->wait) -- cgit v0.10.2 From ce7e5d2d19bc371e1b67826bfbc79bbcbaa9772f Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 6 May 2012 17:20:00 +0100 Subject: x86: fix broken TASK_SIZE for ia32_aout Setting TIF_IA32 in load_aout_binary() used to be enough; these days TASK_SIZE is controlled by TIF_ADDR32 and that one doesn't get set there. Switch to use of set_personality_ia32()... Signed-off-by: Al Viro Signed-off-by: Linus Torvalds diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c index 4824fb4..07b3a68 100644 --- a/arch/x86/ia32/ia32_aout.c +++ b/arch/x86/ia32/ia32_aout.c @@ -294,8 +294,7 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs) /* OK, This is the point of no return */ set_personality(PER_LINUX); - set_thread_flag(TIF_IA32); - current->mm->context.ia32_compat = 1; + set_personality_ia32(false); setup_new_exec(bprm); -- cgit v0.10.2 From d48b97b403d23f6df0b990cee652bdf9a52337a3 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 6 May 2012 15:07:32 -0700 Subject: Linux 3.4-rc6 diff --git a/Makefile b/Makefile index a06ee9f..9e384ae 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 4 SUBLEVEL = 0 -EXTRAVERSION = -rc5 +EXTRAVERSION = -rc6 NAME = Saber-toothed Squirrel # *DOCUMENTATION* -- cgit v0.10.2 From 72b39f6f2b5a6b0beff14b80bed9756f151218a9 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 8 May 2012 17:44:40 +0100 Subject: regmap: Implement dev_get_regmap() Use devres to implement dev_get_regmap(). This should mean that in almost all cases devices wishing to take advantage of framework features based on regmap shouldn't need to explicitly pass the regmap into the framework. This simplifies device setup a bit. Signed-off-by: Mark Brown diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h index e46c279..c994bc9 100644 --- a/drivers/base/regmap/internal.h +++ b/drivers/base/regmap/internal.h @@ -45,6 +45,7 @@ struct regmap { struct regmap_format format; /* Buffer format */ const struct regmap_bus *bus; void *bus_context; + const char *name; #ifdef CONFIG_DEBUG_FS struct dentry *debugfs; diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index ee4fea3..618173e 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -178,6 +178,15 @@ static void regmap_unlock_spinlock(struct regmap *map) spin_unlock(&map->spinlock); } +static void dev_get_regmap_release(struct device *dev, void *res) +{ + /* + * We don't actually have anything to do here; the goal here + * is not to manage the regmap but to provide a simple way to + * get the regmap back given a struct device. + */ +} + /** * regmap_init(): Initialise register map * @@ -195,7 +204,7 @@ struct regmap *regmap_init(struct device *dev, void *bus_context, const struct regmap_config *config) { - struct regmap *map; + struct regmap *map, **m; int ret = -EINVAL; if (!bus || !config) @@ -230,6 +239,7 @@ struct regmap *regmap_init(struct device *dev, map->volatile_reg = config->volatile_reg; map->precious_reg = config->precious_reg; map->cache_type = config->cache_type; + map->name = config->name; if (config->read_flag_mask || config->write_flag_mask) { map->read_flag_mask = config->read_flag_mask; @@ -326,8 +336,19 @@ struct regmap *regmap_init(struct device *dev, if (ret < 0) goto err_free_workbuf; + /* Add a devres resource for dev_get_regmap() */ + m = devres_alloc(dev_get_regmap_release, sizeof(*m), GFP_KERNEL); + if (!m) { + ret = -ENOMEM; + goto err_cache; + } + *m = map; + devres_add(dev, m); + return map; +err_cache: + regcache_exit(map); err_free_workbuf: kfree(map->work_buf); err_map: @@ -431,6 +452,44 @@ void regmap_exit(struct regmap *map) } EXPORT_SYMBOL_GPL(regmap_exit); +static int dev_get_regmap_match(struct device *dev, void *res, void *data) +{ + struct regmap **r = res; + if (!r || !*r) { + WARN_ON(!r || !*r); + return 0; + } + + /* If the user didn't specify a name match any */ + if (data) + return (*r)->name == data; + else + return 1; +} + +/** + * dev_get_regmap(): Obtain the regmap (if any) for a device + * + * @dev: Device to retrieve the map for + * @name: Optional name for the register map, usually NULL. + * + * Returns the regmap for the device if one is present, or NULL. If + * name is specified then it must match the name specified when + * registering the device, if it is NULL then the first regmap found + * will be used. Devices with multiple register maps are very rare, + * generic code should normally not need to specify a name. + */ +struct regmap *dev_get_regmap(struct device *dev, const char *name) +{ + struct regmap **r = devres_find(dev, dev_get_regmap_release, + dev_get_regmap_match, (void *)name); + + if (!r) + return NULL; + return *r; +} +EXPORT_SYMBOL_GPL(dev_get_regmap); + static int _regmap_raw_write(struct regmap *map, unsigned int reg, const void *val, size_t val_len) { diff --git a/include/linux/regmap.h b/include/linux/regmap.h index f6abc8d..90a4652 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -156,6 +156,7 @@ struct regmap *devm_regmap_init_mmio(struct device *dev, void regmap_exit(struct regmap *map); int regmap_reinit_cache(struct regmap *map, const struct regmap_config *config); +struct regmap *dev_get_regmap(struct device *dev, const char *name); int regmap_write(struct regmap *map, unsigned int reg, unsigned int val); int regmap_raw_write(struct regmap *map, unsigned int reg, const void *val, size_t val_len); @@ -340,6 +341,13 @@ static inline int regmap_register_patch(struct regmap *map, return -EINVAL; } +static inline struct regmap *dev_get_regmap(struct device *dev, + const char *name) +{ + WARN_ONCE(1, "regmap API is disabled"); + return NULL; +} + #endif #endif -- cgit v0.10.2 From 6560ffd1ccd688152393dc7c35dbdcc33140633b Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Wed, 9 May 2012 17:43:12 +0530 Subject: regmap: fix possible memory corruption in regmap_bulk_read() The function regmap_bulk_read() calls the regmap_read() for each register if set of register has volatile and cache is enabled. In this case, last few register read makes the memory corruption if the register size is not the size of unsigned int. The regam_read() takes argument as unsigned int for returning value and it update the value as *val = map->format.parse_val(map->work_buf); This causes complete 4 bytes (size of unsigned int) to get written. Now if client pass the memory pointer for value which is equal to the required size of register count in regmap_bulk_read() then last few register read actually update the memory beyond passed pointer size. Avoid this by using local variable for read and then do memcpy() for actual byte copy to passed pointer based on register size. I allocated one pointer ptr and take first 16 bytes dump of that pointer then call regmap_bulk_read() with pointer which is just on top of this allocated pointer and register count of 128. Here register size is 1 byte. The memory trace of last 5 register read are as follows: [ 5.438589] regmap_bulk_read after regamp_read() for register 122 [ 5.447421] 0xef993c20 0xef993c00 0x00000000 0x00000001 [ 5.467535] regmap_bulk_read after regamp_read() for register 123 [ 5.476374] 0xef993c20 0xef993c00 0x00000000 0x00000001 [ 5.496425] regmap_bulk_read after regamp_read() for register 124 [ 5.505260] 0xef993c20 0xef993c00 0x00000000 0x00000001 [ 5.525372] regmap_bulk_read after regamp_read() for register 125 [ 5.534205] 0xef993c00 0xef993c00 0x00000000 0x00000001 [ 5.554258] regmap_bulk_read after regamp_read() for register 126 [ 5.563100] 0xef990000 0xef993c00 0x00000000 0x00000001 [ 5.554258] regmap_bulk_read after regamp_read() for register 127 [ 5.587108] 0xef000000 0xef993c00 0x00000000 0x00000001 Here it is observed that the memory content at first word started changing on last 3 regmap_read() and so corruption happened. Signed-off-by: Laxman Dewangan Signed-off-by: Mark Brown diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 7a3f535..bb80853 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -775,9 +775,11 @@ int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val, map->format.parse_val(val + i); } else { for (i = 0; i < val_count; i++) { - ret = regmap_read(map, reg + i, val + (i * val_bytes)); + unsigned int ival; + ret = regmap_read(map, reg + i, &ival); if (ret != 0) return ret; + memcpy(val + (i * val_bytes), &ival, val_bytes); } } -- cgit v0.10.2 From 8614419451d88bf99fff7f5e468fe45f8450891e Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sun, 13 May 2012 18:53:23 +0100 Subject: mfd: da9052: Fix genirq abuse Rather than using the pointer passed back by the regmap API (or complaining because that wasn't actually being set) the da9052 driver was having some fun and games peering through genirq and regmap internals. Fix the driver to use the API as expected. Signed-off-by: Mark Brown diff --git a/drivers/mfd/da9052-core.c b/drivers/mfd/da9052-core.c index 7ff313f..7776aff 100644 --- a/drivers/mfd/da9052-core.c +++ b/drivers/mfd/da9052-core.c @@ -659,12 +659,11 @@ int __devinit da9052_device_init(struct da9052 *da9052, u8 chip_id) ret = regmap_add_irq_chip(da9052->regmap, da9052->chip_irq, IRQF_TRIGGER_LOW | IRQF_ONESHOT, da9052->irq_base, &da9052_regmap_irq_chip, - NULL); + &da9052->irq_data); if (ret < 0) goto regmap_err; - desc = irq_to_desc(da9052->chip_irq); - da9052->irq_base = regmap_irq_chip_get_base(desc->action->dev_id); + da9052->irq_base = regmap_irq_chip_get_base(da9052->irq_data); ret = mfd_add_devices(da9052->dev, -1, da9052_subdev_info, ARRAY_SIZE(da9052_subdev_info), NULL, 0); @@ -681,8 +680,7 @@ regmap_err: void da9052_device_exit(struct da9052 *da9052) { - regmap_del_irq_chip(da9052->chip_irq, - irq_get_irq_data(da9052->irq_base)->chip_data); + regmap_del_irq_chip(da9052->chip_irq, da9052->irq_data); mfd_remove_devices(da9052->dev); } diff --git a/include/linux/mfd/da9052/da9052.h b/include/linux/mfd/da9052/da9052.h index 7ffbd6e..8313cd9 100644 --- a/include/linux/mfd/da9052/da9052.h +++ b/include/linux/mfd/da9052/da9052.h @@ -80,6 +80,7 @@ struct da9052 { struct regmap *regmap; int irq_base; + struct regmap_irq_chip_data *irq_data; u8 chip_id; int chip_irq; -- cgit v0.10.2 From 2431d0a1d68aabefeee02b93971ee73e8b215697 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sun, 13 May 2012 11:18:34 +0100 Subject: regmap: Pass back the allocated regmap IRQ controller data It's needed for freeing and for obtaining the IRQ base later on. Signed-off-by: Mark Brown diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c index 1befaa7..f4e6dcf 100644 --- a/drivers/base/regmap/regmap-irq.c +++ b/drivers/base/regmap/regmap-irq.c @@ -192,6 +192,8 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags, if (!d) return -ENOMEM; + *data = d; + d->status_buf = kzalloc(sizeof(unsigned int) * chip->num_regs, GFP_KERNEL); if (!d->status_buf) -- cgit v0.10.2