From b690c425fe07c725e7f1f7d40303588416cba67f Mon Sep 17 00:00:00 2001 From: Daniel Hellstrom Date: Fri, 29 Oct 2010 13:25:24 -0700 Subject: SPARC/LEON: removed constant timer initialization as if HZ=100, now it reflects the value of HZ Signed-off-by: Daniel Hellstrom Signed-off-by: David S. Miller diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c index 2d51527..f01c426 100644 --- a/arch/sparc/kernel/leon_kernel.c +++ b/arch/sparc/kernel/leon_kernel.c @@ -114,7 +114,7 @@ void __init leon_init_timers(irq_handler_t counter_fn) if (leon3_gptimer_regs && leon3_irqctrl_regs) { LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[0].val, 0); LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[0].rld, - (((1000000 / 100) - 1))); + (((1000000 / HZ) - 1))); LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[0].ctrl, 0); #ifdef CONFIG_SMP @@ -128,7 +128,7 @@ void __init leon_init_timers(irq_handler_t counter_fn) } LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].val, 0); - LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].rld, (((1000000/100) - 1))); + LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].rld, (((1000000/HZ) - 1))); LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].ctrl, 0); # endif -- cgit v0.10.2 From ce05a94efaf71d562eeefd30d6bbc2ab42b06bac Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 16 Nov 2010 12:08:23 -0800 Subject: sparc64: Delete prom_puts() unused. Signed-off-by: David S. Miller diff --git a/arch/sparc/prom/console_64.c b/arch/sparc/prom/console_64.c index 10322dc..de67fc7 100644 --- a/arch/sparc/prom/console_64.c +++ b/arch/sparc/prom/console_64.c @@ -81,19 +81,3 @@ prom_putchar(char c) { prom_nbputchar(c); } - -void -prom_puts(const char *s, int len) -{ - unsigned long args[7]; - - args[0] = (unsigned long) "write"; - args[1] = 3; - args[2] = 1; - args[3] = (unsigned int) prom_stdout; - args[4] = (unsigned long) s; - args[5] = len; - args[6] = (unsigned long) -1; - - p1275_cmd_direct(args); -} -- cgit v0.10.2 From 17d70d6df0c4ea7a203b444001572a91ad9c2bef Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 16 Nov 2010 12:11:15 -0800 Subject: sparc: Remove prom_pathtoinode() Unused. Signed-off-by: David S. Miller diff --git a/arch/sparc/include/asm/oplib_32.h b/arch/sparc/include/asm/oplib_32.h index 51296a6..b0f79be 100644 --- a/arch/sparc/include/asm/oplib_32.h +++ b/arch/sparc/include/asm/oplib_32.h @@ -238,7 +238,6 @@ extern int prom_node_has_property(phandle node, char *property); extern int prom_setprop(phandle node, const char *prop_name, char *prop_value, int value_size); -extern phandle prom_pathtoinode(char *path); extern phandle prom_inst2pkg(int); /* Dorking with Bus ranges... */ diff --git a/arch/sparc/include/asm/oplib_64.h b/arch/sparc/include/asm/oplib_64.h index c9cc078..9b01a4b 100644 --- a/arch/sparc/include/asm/oplib_64.h +++ b/arch/sparc/include/asm/oplib_64.h @@ -279,7 +279,6 @@ extern phandle prom_finddevice(const char *name); extern int prom_setprop(phandle node, const char *prop_name, char *prop_value, int value_size); -extern phandle prom_pathtoinode(const char *path); extern phandle prom_inst2pkg(int); extern int prom_service_exists(const char *service_name); extern void prom_sun4v_guest_soft_state(void); diff --git a/arch/sparc/prom/tree_32.c b/arch/sparc/prom/tree_32.c index 63e08e1..535e2e6 100644 --- a/arch/sparc/prom/tree_32.c +++ b/arch/sparc/prom/tree_32.c @@ -342,19 +342,3 @@ phandle prom_inst2pkg(int inst) if (node == -1) return 0; return node; } - -/* Return 'node' assigned to a particular prom 'path' - * FIXME: Should work for v0 as well - */ -phandle prom_pathtoinode(char *path) -{ - phandle node; - int inst; - - inst = prom_devopen (path); - if (inst == -1) return 0; - node = prom_inst2pkg (inst); - prom_devclose (inst); - if (node == -1) return 0; - return node; -} diff --git a/arch/sparc/prom/tree_64.c b/arch/sparc/prom/tree_64.c index 691be68..d936600 100644 --- a/arch/sparc/prom/tree_64.c +++ b/arch/sparc/prom/tree_64.c @@ -374,24 +374,6 @@ inline phandle prom_inst2pkg(int inst) return node; } -/* Return 'node' assigned to a particular prom 'path' - * FIXME: Should work for v0 as well - */ -phandle prom_pathtoinode(const char *path) -{ - phandle node; - int inst; - - inst = prom_devopen (path); - if (inst == 0) - return 0; - node = prom_inst2pkg(inst); - prom_devclose(inst); - if (node == -1) - return 0; - return node; -} - int prom_ihandle2path(int handle, char *buffer, int bufsize) { unsigned long args[7]; -- cgit v0.10.2 From b148246912bea92bde2a0cba125ca94f1f776b12 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 16 Nov 2010 12:23:20 -0800 Subject: sparc: Kill prom devops_{32,64}.c Completely unused. Signed-off-by: David S. Miller diff --git a/arch/sparc/include/asm/oplib_32.h b/arch/sparc/include/asm/oplib_32.h index b0f79be..1d893fa 100644 --- a/arch/sparc/include/asm/oplib_32.h +++ b/arch/sparc/include/asm/oplib_32.h @@ -60,25 +60,6 @@ extern char *prom_getbootargs(void); extern char *prom_mapio(char *virt_hint, int io_space, unsigned int phys_addr, unsigned int num_bytes); extern void prom_unmapio(char *virt_addr, unsigned int num_bytes); -/* Device operations. */ - -/* Open the device described by the passed string. Note, that the format - * of the string is different on V0 vs. V2->higher proms. The caller must - * know what he/she is doing! Returns the device descriptor, an int. - */ -extern int prom_devopen(char *device_string); - -/* Close a previously opened device described by the passed integer - * descriptor. - */ -extern int prom_devclose(int device_handle); - -/* Do a seek operation on the device described by the passed integer - * descriptor. - */ -extern void prom_seek(int device_handle, unsigned int seek_hival, - unsigned int seek_lowval); - /* Miscellaneous routines, don't really fit in any category per se. */ /* Reboot the machine with the command line passed. */ diff --git a/arch/sparc/include/asm/oplib_64.h b/arch/sparc/include/asm/oplib_64.h index 9b01a4b..8441d1a 100644 --- a/arch/sparc/include/asm/oplib_64.h +++ b/arch/sparc/include/asm/oplib_64.h @@ -67,27 +67,6 @@ extern void prom_init(void *cif_handler, void *cif_stack); /* Boot argument acquisition, returns the boot command line string. */ extern char *prom_getbootargs(void); -/* Device utilities. */ - -/* Device operations. */ - -/* Open the device described by the passed string. Note, that the format - * of the string is different on V0 vs. V2->higher proms. The caller must - * know what he/she is doing! Returns the device descriptor, an int. - */ -extern int prom_devopen(const char *device_string); - -/* Close a previously opened device described by the passed integer - * descriptor. - */ -extern int prom_devclose(int device_handle); - -/* Do a seek operation on the device described by the passed integer - * descriptor. - */ -extern void prom_seek(int device_handle, unsigned int seek_hival, - unsigned int seek_lowval); - /* Miscellaneous routines, don't really fit in any category per se. */ /* Reboot the machine with the command line passed. */ diff --git a/arch/sparc/prom/Makefile b/arch/sparc/prom/Makefile index 1b8c073..816c0fa 100644 --- a/arch/sparc/prom/Makefile +++ b/arch/sparc/prom/Makefile @@ -6,7 +6,6 @@ ccflags := -Werror lib-y := bootstr_$(BITS).o lib-$(CONFIG_SPARC32) += devmap.o -lib-y += devops_$(BITS).o lib-y += init_$(BITS).o lib-$(CONFIG_SPARC32) += memory.o lib-y += misc_$(BITS).o diff --git a/arch/sparc/prom/devops_32.c b/arch/sparc/prom/devops_32.c deleted file mode 100644 index 9c5d468..0000000 --- a/arch/sparc/prom/devops_32.c +++ /dev/null @@ -1,87 +0,0 @@ -/* - * devops.c: Device operations using the PROM. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - */ -#include -#include -#include - -#include -#include - -extern void restore_current(void); - -/* Open the device described by the string 'dstr'. Returns the handle - * to that device used for subsequent operations on that device. - * Returns -1 on failure. - */ -int -prom_devopen(char *dstr) -{ - int handle; - unsigned long flags; - spin_lock_irqsave(&prom_lock, flags); - switch(prom_vers) { - case PROM_V0: - handle = (*(romvec->pv_v0devops.v0_devopen))(dstr); - if(handle == 0) handle = -1; - break; - case PROM_V2: - case PROM_V3: - handle = (*(romvec->pv_v2devops.v2_dev_open))(dstr); - break; - default: - handle = -1; - break; - }; - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); - - return handle; -} - -/* Close the device described by device handle 'dhandle'. */ -int -prom_devclose(int dhandle) -{ - unsigned long flags; - spin_lock_irqsave(&prom_lock, flags); - switch(prom_vers) { - case PROM_V0: - (*(romvec->pv_v0devops.v0_devclose))(dhandle); - break; - case PROM_V2: - case PROM_V3: - (*(romvec->pv_v2devops.v2_dev_close))(dhandle); - break; - default: - break; - }; - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); - return 0; -} - -/* Seek to specified location described by 'seekhi' and 'seeklo' - * for device 'dhandle'. - */ -void -prom_seek(int dhandle, unsigned int seekhi, unsigned int seeklo) -{ - unsigned long flags; - spin_lock_irqsave(&prom_lock, flags); - switch(prom_vers) { - case PROM_V0: - (*(romvec->pv_v0devops.v0_seekdev))(dhandle, seekhi, seeklo); - break; - case PROM_V2: - case PROM_V3: - (*(romvec->pv_v2devops.v2_dev_seek))(dhandle, seekhi, seeklo); - break; - default: - break; - }; - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); -} diff --git a/arch/sparc/prom/devops_64.c b/arch/sparc/prom/devops_64.c deleted file mode 100644 index a017119..0000000 --- a/arch/sparc/prom/devops_64.c +++ /dev/null @@ -1,67 +0,0 @@ -/* - * devops.c: Device operations using the PROM. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ -#include -#include -#include - -#include -#include - -/* Open the device described by the string 'dstr'. Returns the handle - * to that device used for subsequent operations on that device. - * Returns 0 on failure. - */ -int -prom_devopen(const char *dstr) -{ - unsigned long args[5]; - - args[0] = (unsigned long) "open"; - args[1] = 1; - args[2] = 1; - args[3] = (unsigned long) dstr; - args[4] = (unsigned long) -1; - - p1275_cmd_direct(args); - - return (int) args[4]; -} - -/* Close the device described by device handle 'dhandle'. */ -int -prom_devclose(int dhandle) -{ - unsigned long args[4]; - - args[0] = (unsigned long) "close"; - args[1] = 1; - args[2] = 0; - args[3] = (unsigned int) dhandle; - - p1275_cmd_direct(args); - - return 0; -} - -/* Seek to specified location described by 'seekhi' and 'seeklo' - * for device 'dhandle'. - */ -void -prom_seek(int dhandle, unsigned int seekhi, unsigned int seeklo) -{ - unsigned long args[7]; - - args[0] = (unsigned long) "seek"; - args[1] = 3; - args[2] = 1; - args[3] = (unsigned int) dhandle; - args[4] = seekhi; - args[5] = seeklo; - args[6] = (unsigned long) -1; - - p1275_cmd_direct(args); -} -- cgit v0.10.2 From f7b5f55ac1623dfde24ef5319ad77c1746645f3f Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 16 Nov 2010 12:24:16 -0800 Subject: sparc64: Unexport prom_service_exists(). Only used by functions in misc_64.c so make it private to that file. Signed-off-by: David S. Miller diff --git a/arch/sparc/include/asm/oplib_64.h b/arch/sparc/include/asm/oplib_64.h index 8441d1a..daf02d3 100644 --- a/arch/sparc/include/asm/oplib_64.h +++ b/arch/sparc/include/asm/oplib_64.h @@ -259,7 +259,6 @@ extern int prom_setprop(phandle node, const char *prop_name, char *prop_value, int value_size); extern phandle prom_inst2pkg(int); -extern int prom_service_exists(const char *service_name); extern void prom_sun4v_guest_soft_state(void); extern int prom_ihandle2path(int handle, char *buffer, int bufsize); diff --git a/arch/sparc/prom/misc_64.c b/arch/sparc/prom/misc_64.c index d24bc44..b900fdf 100644 --- a/arch/sparc/prom/misc_64.c +++ b/arch/sparc/prom/misc_64.c @@ -18,7 +18,7 @@ #include #include -int prom_service_exists(const char *service_name) +static int prom_service_exists(const char *service_name) { unsigned long args[5]; -- cgit v0.10.2 From c540ee70e49b573535c7ddfd0e9a0fc9d549c8b7 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 16 Nov 2010 12:50:19 -0800 Subject: sparc64: Delete prom_setcallback(). Unused. Signed-off-by: David S. Miller diff --git a/arch/sparc/include/asm/oplib_64.h b/arch/sparc/include/asm/oplib_64.h index daf02d3..56985e3 100644 --- a/arch/sparc/include/asm/oplib_64.h +++ b/arch/sparc/include/asm/oplib_64.h @@ -88,14 +88,6 @@ extern void prom_halt(void) __attribute__ ((noreturn)); /* Halt and power-off the machine. */ extern void prom_halt_power_off(void) __attribute__ ((noreturn)); -/* Set the PROM 'sync' callback function to the passed function pointer. - * When the user gives the 'sync' command at the prom prompt while the - * kernel is still active, the prom will call this routine. - * - */ -typedef int (*callback_func_t)(long *cmd); -extern void prom_setcallback(callback_func_t func_ptr); - /* Acquire the IDPROM of the root node in the prom device tree. This * gets passed a buffer where you would like it stuffed. The return value * is the format type of this idprom or 0xff on error. diff --git a/arch/sparc/prom/misc_64.c b/arch/sparc/prom/misc_64.c index b900fdf..e4f31d4 100644 --- a/arch/sparc/prom/misc_64.c +++ b/arch/sparc/prom/misc_64.c @@ -150,20 +150,6 @@ void prom_halt_power_off(void) prom_halt(); } -/* Set prom sync handler to call function 'funcp'. */ -void prom_setcallback(callback_func_t funcp) -{ - unsigned long args[5]; - if (!funcp) - return; - args[0] = (unsigned long) "set-callback"; - args[1] = 1; - args[2] = 1; - args[3] = (unsigned long) funcp; - args[4] = (unsigned long) -1; - p1275_cmd_direct(args); -} - /* Get the idprom and stuff it into buffer 'idbuf'. Returns the * format type. 'num_bytes' is the number of bytes that your idbuf * has space for. Returns 0xff on error. -- cgit v0.10.2 From 91921fef7c658b12de53376b312d071d757f7770 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 17 Nov 2010 10:22:56 -0800 Subject: sparc: Do not export prom_nb{get,put}char(). Never used outside of console_{32,64}.c Signed-off-by: David S. Miller diff --git a/arch/sparc/include/asm/oplib_32.h b/arch/sparc/include/asm/oplib_32.h index 1d893fa..49fe426 100644 --- a/arch/sparc/include/asm/oplib_32.h +++ b/arch/sparc/include/asm/oplib_32.h @@ -104,12 +104,6 @@ extern int prom_getprev(void); /* Character operations to/from the console.... */ -/* Non-blocking get character from console. */ -extern int prom_nbgetchar(void); - -/* Non-blocking put character to console. */ -extern int prom_nbputchar(char character); - /* Blocking get character from console. */ extern char prom_getchar(void); diff --git a/arch/sparc/include/asm/oplib_64.h b/arch/sparc/include/asm/oplib_64.h index 56985e3..d541de4 100644 --- a/arch/sparc/include/asm/oplib_64.h +++ b/arch/sparc/include/asm/oplib_64.h @@ -96,12 +96,6 @@ extern unsigned char prom_get_idprom(char *idp_buffer, int idpbuf_size); /* Character operations to/from the console.... */ -/* Non-blocking get character from console. */ -extern int prom_nbgetchar(void); - -/* Non-blocking put character to console. */ -extern int prom_nbputchar(char character); - /* Blocking get character from console. */ extern char prom_getchar(void); diff --git a/arch/sparc/prom/console_32.c b/arch/sparc/prom/console_32.c index 5340264..2ce5acb 100644 --- a/arch/sparc/prom/console_32.c +++ b/arch/sparc/prom/console_32.c @@ -19,8 +19,7 @@ extern void restore_current(void); /* Non blocking get character from console input device, returns -1 * if no input was taken. This can be used for polling. */ -int -prom_nbgetchar(void) +static int prom_nbgetchar(void) { static char inc; int i = -1; @@ -51,8 +50,7 @@ prom_nbgetchar(void) /* Non blocking put character to console device, returns -1 if * unsuccessful. */ -int -prom_nbputchar(char c) +static int prom_nbputchar(char c) { static char outc; unsigned long flags; diff --git a/arch/sparc/prom/console_64.c b/arch/sparc/prom/console_64.c index de67fc7..33a8b27 100644 --- a/arch/sparc/prom/console_64.c +++ b/arch/sparc/prom/console_64.c @@ -18,8 +18,7 @@ extern int prom_stdin, prom_stdout; /* Non blocking get character from console input device, returns -1 * if no input was taken. This can be used for polling. */ -inline int -prom_nbgetchar(void) +static int prom_nbgetchar(void) { unsigned long args[7]; char inc; @@ -42,8 +41,7 @@ prom_nbgetchar(void) /* Non blocking put character to console device, returns -1 if * unsuccessful. */ -inline int -prom_nbputchar(char c) +static int prom_nbputchar(char c) { unsigned long args[7]; char outc; -- cgit v0.10.2 From 09910509ebc74643e94fe6f3feb4c23b019aeb34 Mon Sep 17 00:00:00 2001 From: Glenn Sommer Date: Mon, 22 Nov 2010 12:00:05 -0800 Subject: Input: usbtouchscreen - add support for LG Flatron T1710B I've recently got my hands on a LG Flatron T1710B touchscreen. As other LG products, this seems to use the ITM panel. Signed-off-by: Glenn Sommer Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c index f45f80f..73fd664 100644 --- a/drivers/input/touchscreen/usbtouchscreen.c +++ b/drivers/input/touchscreen/usbtouchscreen.c @@ -178,6 +178,7 @@ static const struct usb_device_id usbtouch_devices[] = { #ifdef CONFIG_TOUCHSCREEN_USB_ITM {USB_DEVICE(0x0403, 0xf9e9), .driver_info = DEVTYPE_ITM}, + {USB_DEVICE(0x16e3, 0xf9e9), .driver_info = DEVTYPE_ITM}, #endif #ifdef CONFIG_TOUCHSCREEN_USB_ETURBO -- cgit v0.10.2 From c89ad7372232b69fd37edf90d6f5d2a8d6381214 Mon Sep 17 00:00:00 2001 From: "Gustavo F. Padovan" Date: Mon, 1 Nov 2010 19:08:50 +0000 Subject: Bluetooth: Fix not returning proper error in SCO Return 0 in that situation could lead to errors in the caller. Signed-off-by: Gustavo F. Padovan diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c index d0927d1..66b9e5c 100644 --- a/net/bluetooth/sco.c +++ b/net/bluetooth/sco.c @@ -882,7 +882,7 @@ static int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type) int lm = 0; if (type != SCO_LINK && type != ESCO_LINK) - return 0; + return -EINVAL; BT_DBG("hdev %s, bdaddr %s", hdev->name, batostr(bdaddr)); @@ -908,7 +908,7 @@ static int sco_connect_cfm(struct hci_conn *hcon, __u8 status) BT_DBG("hcon %p bdaddr %s status %d", hcon, batostr(&hcon->dst), status); if (hcon->type != SCO_LINK && hcon->type != ESCO_LINK) - return 0; + return -EINVAL; if (!status) { struct sco_conn *conn; @@ -927,7 +927,7 @@ static int sco_disconn_cfm(struct hci_conn *hcon, __u8 reason) BT_DBG("hcon %p reason %d", hcon, reason); if (hcon->type != SCO_LINK && hcon->type != ESCO_LINK) - return 0; + return -EINVAL; sco_conn_del(hcon, bt_err(reason)); -- cgit v0.10.2 From c72b844ed2f55c442b464e382a2eb2ecab5292a8 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 22 Oct 2010 16:18:47 -0700 Subject: ibm_rtl: fix printk format warning Fix printk format warning: drivers/platform/x86/ibm_rtl.c:305:warning: format '%#llx' expects type 'long long unsigned int', but argument 2 has type 'phys_addr_t' Signed-off-by: Randy Dunlap Cc: Keith Mannthey Cc: Vernon Mauery Cc: platform-driver-x86@vger.kernel.org Cc: Matthew Garrett Signed-off-by: Matthew Garrett diff --git a/drivers/platform/x86/ibm_rtl.c b/drivers/platform/x86/ibm_rtl.c index 3c2c6b9..a884f54 100644 --- a/drivers/platform/x86/ibm_rtl.c +++ b/drivers/platform/x86/ibm_rtl.c @@ -302,7 +302,7 @@ static int __init ibm_rtl_init(void) { RTL_DEBUG("rtl_cmd_width = %u, rtl_cmd_type = %u\n", rtl_cmd_width, rtl_cmd_type); addr = ioread32(&rtl_table->cmd_port_address); - RTL_DEBUG("addr = %#llx\n", addr); + RTL_DEBUG("addr = %#llx\n", (unsigned long long)addr); plen = rtl_cmd_width/sizeof(char); rtl_cmd_addr = rtl_port_map(addr, plen); RTL_DEBUG("rtl_cmd_addr = %#llx\n", (u64)rtl_cmd_addr); -- cgit v0.10.2 From a49010f53b723ed0711d645ec43bde498c6756dc Mon Sep 17 00:00:00 2001 From: Jon Dowland Date: Wed, 27 Oct 2010 00:24:59 +0100 Subject: toshiba_acpi.c: Add key_entry for a lone FN keypress MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A lone FN key press on a Toshiba Portégé R700 without another key in conjunction results in an ACPI event and a spurious error message on the console. Add a key entry to map this event to a KEY_FN keypress. This prevents the console message. Signed-off-by: Jon Dowland Signed-off-by: Matthew Garrett diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c index 06f304f..4276da7 100644 --- a/drivers/platform/x86/toshiba_acpi.c +++ b/drivers/platform/x86/toshiba_acpi.c @@ -135,6 +135,7 @@ static const struct key_entry toshiba_acpi_keymap[] __initconst = { { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } }, { KE_KEY, 0x142, { KEY_WLAN } }, { KE_KEY, 0x143, { KEY_PROG1 } }, + { KE_KEY, 0x17f, { KEY_FN } }, { KE_KEY, 0xb05, { KEY_PROG2 } }, { KE_KEY, 0xb06, { KEY_WWW } }, { KE_KEY, 0xb07, { KEY_MAIL } }, -- cgit v0.10.2 From e599ab2556006398ba9aad536a58eedad515e807 Mon Sep 17 00:00:00 2001 From: Chris Bagwell Date: Mon, 25 Oct 2010 21:08:39 -0500 Subject: eeepc-wmi: add cpufv sysfs documentation Based on cpufv text from sysfs-platform-eeepc-laptop that has almost same behavior. Signed-off-by: Chris Bagwell Signed-off-by: Matthew Garrett Acked-by: Corentin Chary diff --git a/Documentation/ABI/testing/sysfs-platform-eeepc-wmi b/Documentation/ABI/testing/sysfs-platform-eeepc-wmi new file mode 100644 index 0000000..e4b5fef --- /dev/null +++ b/Documentation/ABI/testing/sysfs-platform-eeepc-wmi @@ -0,0 +1,10 @@ +What: /sys/devices/platform/eeepc-wmi/cpufv +Date: Oct 2010 +KernelVersion: 2.6.37 +Contact: "Corentin Chary" +Description: + Change CPU clock configuration (write-only). + There are three available clock configuration: + * 0 -> Super Performance Mode + * 1 -> High Performance Mode + * 2 -> Power Saving Mode -- cgit v0.10.2 From d41014b92d60a6b375aad9b6ebc52201ee58df70 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Tue, 26 Oct 2010 12:25:37 +0200 Subject: drivers/platform/x86/thinkpad_acpi.c: delete double assignment Delete successive assignments to the same location. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @@ expression i; @@ *i = ...; i = ...; // Signed-off-by: Julia Lawall Signed-off-by: Matthew Garrett diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 2d61186..e8c2199 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -8497,7 +8497,6 @@ static void ibm_exit(struct ibm_struct *ibm) ibm->acpi->type, dispatch_acpi_notify); ibm->flags.acpi_notify_installed = 0; - ibm->flags.acpi_notify_installed = 0; } if (ibm->flags.proc_created) { -- cgit v0.10.2 From a2262260f9eaee4acd56b5624b5d2bf4be9bb38a Mon Sep 17 00:00:00 2001 From: Vernon Mauery Date: Tue, 2 Nov 2010 13:08:10 -0700 Subject: ibm_rtl: Loosen the DMI criteria to all IBM machines Allow all IBM machines to pass the DMI check so that we don't have to add them one by one to the driver. Any IBM machine that has the _RTL_ table in the EBDA will work. Signed-off-by: Vernon Mauery Signed-off-by: Matthew Garrett diff --git a/drivers/platform/x86/ibm_rtl.c b/drivers/platform/x86/ibm_rtl.c index a884f54..5c975ed 100644 --- a/drivers/platform/x86/ibm_rtl.c +++ b/drivers/platform/x86/ibm_rtl.c @@ -220,32 +220,13 @@ static void rtl_teardown_sysfs(void) { sysdev_class_unregister(&class_rtl); } -static int dmi_check_cb(const struct dmi_system_id *id) -{ - RTL_DEBUG("found IBM server '%s'\n", id->ident); - return 0; -} - -#define ibm_dmi_entry(NAME, TYPE) \ -{ \ - .ident = NAME, \ - .matches = { \ - DMI_MATCH(DMI_SYS_VENDOR, "IBM"), \ - DMI_MATCH(DMI_PRODUCT_NAME, TYPE), \ - }, \ - .callback = dmi_check_cb \ -} static struct dmi_system_id __initdata ibm_rtl_dmi_table[] = { - ibm_dmi_entry("BladeCenter LS21", "7971"), - ibm_dmi_entry("BladeCenter LS22", "7901"), - ibm_dmi_entry("BladeCenter HS21 XM", "7995"), - ibm_dmi_entry("BladeCenter HS22", "7870"), - ibm_dmi_entry("BladeCenter HS22V", "7871"), - ibm_dmi_entry("System x3550 M2", "7946"), - ibm_dmi_entry("System x3650 M2", "7947"), - ibm_dmi_entry("System x3550 M3", "7944"), - ibm_dmi_entry("System x3650 M3", "7945"), + { \ + .matches = { \ + DMI_MATCH(DMI_SYS_VENDOR, "IBM"), \ + }, \ + }, { } }; -- cgit v0.10.2 From 1d37db77c1aa199ae9a4114af7c0412c8417e949 Mon Sep 17 00:00:00 2001 From: Vernon Mauery Date: Tue, 2 Nov 2010 13:08:11 -0700 Subject: ibm_rtl: _RTL_ is not available in UEFI mode Some of the IBM servers that are supported by ibm_rtl can run in both Legacy mode (BIOS) and in UEFI mode. When running in UEFI mode, it is possible that the EBDA table exists but cannot be mapped and reports errors. We need to make sure that by default we don't try to probe the machines if they are running in UEFI mode. Signed-off-by: Vernon Mauery Signed-off-by: Matthew Garrett diff --git a/drivers/platform/x86/ibm_rtl.c b/drivers/platform/x86/ibm_rtl.c index 5c975ed..94a114a 100644 --- a/drivers/platform/x86/ibm_rtl.c +++ b/drivers/platform/x86/ibm_rtl.c @@ -28,6 +28,7 @@ #include #include #include +#include #include #include @@ -238,7 +239,7 @@ static int __init ibm_rtl_init(void) { if (force) pr_warning("ibm-rtl: module loaded by force\n"); /* first ensure that we are running on IBM HW */ - else if (!dmi_check_system(ibm_rtl_dmi_table)) + else if (efi_enabled || !dmi_check_system(ibm_rtl_dmi_table)) return -ENODEV; /* Get the address for the Extended BIOS Data Area */ -- cgit v0.10.2 From 67fa38ec097a3e270ab175636338185017b49fa7 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Wed, 3 Nov 2010 11:14:01 -0700 Subject: eeepc-wmi: fix compiler warning This fixes the following: CC [M] drivers/platform/x86/eeepc-wmi.o drivers/platform/x86/eeepc-wmi.c:322: warning: initialization from incompatible pointer type Signed-off-by: Dmitry Torokhov Signed-off-by: Matthew Garrett diff --git a/drivers/platform/x86/eeepc-wmi.c b/drivers/platform/x86/eeepc-wmi.c index 462ceab..0d50fbb 100644 --- a/drivers/platform/x86/eeepc-wmi.c +++ b/drivers/platform/x86/eeepc-wmi.c @@ -298,8 +298,8 @@ static void eeepc_wmi_notify(u32 value, void *context) kfree(obj); } -static int store_cpufv(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { int value; struct acpi_buffer input = { (acpi_size)sizeof(value), &value }; -- cgit v0.10.2 From ba1ff5be52163a97ac4ce8bc51beae2c96861a43 Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Sun, 14 Nov 2010 17:40:12 +0100 Subject: asus-laptop: add wimax and wwan support Asus UL30A has a 3G chip, but the radio is disabled by default. The DSDT also reference a WIMAX device, which is not present on this model. This patch adds two new files: wwan and wimax to control WWAN and WIMAX devices. It does not use rfkill, because like WLED and BLED, we don't know yet that the two ACPI functions will always control the radio, they may control only the leds on some hardware. We may add rfkill switchs later. Signed-off-by: Corentin Chary Signed-off-by: Matthew Garrett diff --git a/Documentation/ABI/testing/sysfs-platform-asus-laptop b/Documentation/ABI/testing/sysfs-platform-asus-laptop index 1d77539..41ff8ae 100644 --- a/Documentation/ABI/testing/sysfs-platform-asus-laptop +++ b/Documentation/ABI/testing/sysfs-platform-asus-laptop @@ -47,6 +47,20 @@ Date: January 2007 KernelVersion: 2.6.20 Contact: "Corentin Chary" Description: - Control the bluetooth device. 1 means on, 0 means off. + Control the wlan device. 1 means on, 0 means off. This may control the led, the device or both. Users: Lapsus + +What: /sys/devices/platform/asus_laptop/wimax +Date: October 2010 +KernelVersion: 2.6.37 +Contact: "Corentin Chary" +Description: + Control the wimax device. 1 means on, 0 means off. + +What: /sys/devices/platform/asus_laptop/wwan +Date: October 2010 +KernelVersion: 2.6.37 +Contact: "Corentin Chary" +Description: + Control the wwan (3G) device. 1 means on, 0 means off. diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c index 60a5a5c..d235f44 100644 --- a/drivers/platform/x86/asus-laptop.c +++ b/drivers/platform/x86/asus-laptop.c @@ -81,6 +81,8 @@ MODULE_PARM_DESC(wapf, "WAPF value"); static int wlan_status = 1; static int bluetooth_status = 1; +static int wimax_status = -1; +static int wwan_status = -1; module_param(wlan_status, int, 0444); MODULE_PARM_DESC(wlan_status, "Set the wireless status on boot " @@ -92,6 +94,16 @@ MODULE_PARM_DESC(bluetooth_status, "Set the wireless status on boot " "(0 = disabled, 1 = enabled, -1 = don't do anything). " "default is 1"); +module_param(wimax_status, int, 0444); +MODULE_PARM_DESC(wimax_status, "Set the wireless status on boot " + "(0 = disabled, 1 = enabled, -1 = don't do anything). " + "default is 1"); + +module_param(wwan_status, int, 0444); +MODULE_PARM_DESC(wwan_status, "Set the wireless status on boot " + "(0 = disabled, 1 = enabled, -1 = don't do anything). " + "default is 1"); + /* * Some events we use, same for all Asus */ @@ -114,6 +126,8 @@ MODULE_PARM_DESC(bluetooth_status, "Set the wireless status on boot " */ #define WL_RSTS 0x01 /* internal Wifi */ #define BT_RSTS 0x02 /* internal Bluetooth */ +#define WM_RSTS 0x08 /* internal wimax */ +#define WW_RSTS 0x20 /* internal wwan */ /* LED */ #define METHOD_MLED "MLED" @@ -132,6 +146,11 @@ MODULE_PARM_DESC(bluetooth_status, "Set the wireless status on boot " */ #define METHOD_WLAN "WLED" #define METHOD_BLUETOOTH "BLED" + +/* WWAN and WIMAX */ +#define METHOD_WWAN "GSMC" +#define METHOD_WIMAX "WMXC" + #define METHOD_WL_STATUS "RSTS" /* Brightness */ @@ -883,6 +902,64 @@ static ssize_t store_bluetooth(struct device *dev, } /* + * Wimax + */ +static int asus_wimax_set(struct asus_laptop *asus, int status) +{ + if (write_acpi_int(asus->handle, METHOD_WIMAX, !!status)) { + pr_warning("Error setting wimax status to %d", status); + return -EIO; + } + return 0; +} + +static ssize_t show_wimax(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct asus_laptop *asus = dev_get_drvdata(dev); + + return sprintf(buf, "%d\n", asus_wireless_status(asus, WM_RSTS)); +} + +static ssize_t store_wimax(struct device *dev, + struct device_attribute *attr, const char *buf, + size_t count) +{ + struct asus_laptop *asus = dev_get_drvdata(dev); + + return sysfs_acpi_set(asus, buf, count, METHOD_WIMAX); +} + +/* + * Wwan + */ +static int asus_wwan_set(struct asus_laptop *asus, int status) +{ + if (write_acpi_int(asus->handle, METHOD_WWAN, !!status)) { + pr_warning("Error setting wwan status to %d", status); + return -EIO; + } + return 0; +} + +static ssize_t show_wwan(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct asus_laptop *asus = dev_get_drvdata(dev); + + return sprintf(buf, "%d\n", asus_wireless_status(asus, WW_RSTS)); +} + +static ssize_t store_wwan(struct device *dev, + struct device_attribute *attr, const char *buf, + size_t count) +{ + struct asus_laptop *asus = dev_get_drvdata(dev); + + return sysfs_acpi_set(asus, buf, count, METHOD_WWAN); +} + +/* * Display */ static void asus_set_display(struct asus_laptop *asus, int value) @@ -1202,6 +1279,8 @@ static DEVICE_ATTR(infos, S_IRUGO, show_infos, NULL); static DEVICE_ATTR(wlan, S_IRUGO | S_IWUSR, show_wlan, store_wlan); static DEVICE_ATTR(bluetooth, S_IRUGO | S_IWUSR, show_bluetooth, store_bluetooth); +static DEVICE_ATTR(wimax, S_IRUGO | S_IWUSR, show_wimax, store_wimax); +static DEVICE_ATTR(wwan, S_IRUGO | S_IWUSR, show_wwan, store_wwan); static DEVICE_ATTR(display, S_IRUGO | S_IWUSR, show_disp, store_disp); static DEVICE_ATTR(ledd, S_IRUGO | S_IWUSR, show_ledd, store_ledd); static DEVICE_ATTR(ls_level, S_IRUGO | S_IWUSR, show_lslvl, store_lslvl); @@ -1212,6 +1291,8 @@ static struct attribute *asus_attributes[] = { &dev_attr_infos.attr, &dev_attr_wlan.attr, &dev_attr_bluetooth.attr, + &dev_attr_wimax.attr, + &dev_attr_wwan.attr, &dev_attr_display.attr, &dev_attr_ledd.attr, &dev_attr_ls_level.attr, @@ -1239,6 +1320,13 @@ static mode_t asus_sysfs_is_visible(struct kobject *kobj, } else if (attr == &dev_attr_display.attr) { supported = !acpi_check_handle(handle, METHOD_SWITCH_DISPLAY, NULL); + } else if (attr == &dev_attr_wimax.attr) { + supported = + !acpi_check_handle(asus->handle, METHOD_WIMAX, NULL); + + } else if (attr == &dev_attr_wwan.attr) { + supported = !acpi_check_handle(asus->handle, METHOD_WWAN, NULL); + } else if (attr == &dev_attr_ledd.attr) { supported = !acpi_check_handle(handle, METHOD_LEDD, NULL); @@ -1397,7 +1485,8 @@ static int asus_laptop_get_info(struct asus_laptop *asus) /* * The HWRS method return informations about the hardware. - * 0x80 bit is for WLAN, 0x100 for Bluetooth. + * 0x80 bit is for WLAN, 0x100 for Bluetooth, + * 0x40 for WWAN, 0x10 for WIMAX. * The significance of others is yet to be found. */ status = @@ -1440,6 +1529,12 @@ static int __devinit asus_acpi_init(struct asus_laptop *asus) if (wlan_status >= 0) asus_wlan_set(asus, !!wlan_status); + if (wimax_status >= 0) + asus_wimax_set(asus, !!wimax_status); + + if (wwan_status >= 0) + asus_wwan_set(asus, !!wwan_status); + /* Keyboard Backlight is on by default */ if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL)) asus_kled_set(asus, 1); -- cgit v0.10.2 From 92f61cbc614fb422759790739cbd3e5a68c9a6fc Mon Sep 17 00:00:00 2001 From: Anisse Astier Date: Thu, 18 Nov 2010 13:00:53 +0100 Subject: msi-wmi: Add mute key support Add new MUTE key seen on Medion Akoya AIO PC P4010D using MSI motherboard (Product Name: MS-7621) Reported-and-tested-by: Mark Huijgen Signed-off-by: Anisse Astier Signed-off-by: Matthew Garrett diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c index 42a5469..bde607d 100644 --- a/drivers/platform/x86/msi-wmi.c +++ b/drivers/platform/x86/msi-wmi.c @@ -48,11 +48,13 @@ MODULE_ALIAS("wmi:B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2"); #define MSI_WMI_BRIGHTNESSDOWN (KEYCODE_BASE + 1) #define MSI_WMI_VOLUMEUP (KEYCODE_BASE + 2) #define MSI_WMI_VOLUMEDOWN (KEYCODE_BASE + 3) +#define MSI_WMI_MUTE (KEYCODE_BASE + 4) static struct key_entry msi_wmi_keymap[] = { { KE_KEY, MSI_WMI_BRIGHTNESSUP, {KEY_BRIGHTNESSUP} }, { KE_KEY, MSI_WMI_BRIGHTNESSDOWN, {KEY_BRIGHTNESSDOWN} }, { KE_KEY, MSI_WMI_VOLUMEUP, {KEY_VOLUMEUP} }, { KE_KEY, MSI_WMI_VOLUMEDOWN, {KEY_VOLUMEDOWN} }, + { KE_KEY, MSI_WMI_MUTE, {KEY_MUTE} }, { KE_END, 0} }; static ktime_t last_pressed[ARRAY_SIZE(msi_wmi_keymap) - 1]; -- cgit v0.10.2 From a80e1cd70144fe7727f2e2d838611b6b8cf8a6d5 Mon Sep 17 00:00:00 2001 From: Anisse Astier Date: Thu, 18 Nov 2010 13:00:54 +0100 Subject: msi-wmi: fix semantically incorrect use of keycode instead of scancode MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit I didn't know the difference between the two when I wrote this code in commit c30116c6f0d26cd6e46dfa578163d573ef4730b2. Signed-off-by: Anisse Astier Signed-off-by: Matthew Garrett diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c index bde607d..35278ad 100644 --- a/drivers/platform/x86/msi-wmi.c +++ b/drivers/platform/x86/msi-wmi.c @@ -43,12 +43,12 @@ MODULE_ALIAS("wmi:B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2"); #define dprintk(msg...) pr_debug(DRV_PFX msg) -#define KEYCODE_BASE 0xD0 -#define MSI_WMI_BRIGHTNESSUP KEYCODE_BASE -#define MSI_WMI_BRIGHTNESSDOWN (KEYCODE_BASE + 1) -#define MSI_WMI_VOLUMEUP (KEYCODE_BASE + 2) -#define MSI_WMI_VOLUMEDOWN (KEYCODE_BASE + 3) -#define MSI_WMI_MUTE (KEYCODE_BASE + 4) +#define SCANCODE_BASE 0xD0 +#define MSI_WMI_BRIGHTNESSUP SCANCODE_BASE +#define MSI_WMI_BRIGHTNESSDOWN (SCANCODE_BASE + 1) +#define MSI_WMI_VOLUMEUP (SCANCODE_BASE + 2) +#define MSI_WMI_VOLUMEDOWN (SCANCODE_BASE + 3) +#define MSI_WMI_MUTE (SCANCODE_BASE + 4) static struct key_entry msi_wmi_keymap[] = { { KE_KEY, MSI_WMI_BRIGHTNESSUP, {KEY_BRIGHTNESSUP} }, { KE_KEY, MSI_WMI_BRIGHTNESSDOWN, {KEY_BRIGHTNESSDOWN} }, @@ -171,7 +171,7 @@ static void msi_wmi_notify(u32 value, void *context) ktime_t diff; cur = ktime_get_real(); diff = ktime_sub(cur, last_pressed[key->code - - KEYCODE_BASE]); + SCANCODE_BASE]); /* Ignore event if the same event happened in a 50 ms timeframe -> Key press may result in 10-20 GPEs */ if (ktime_to_us(diff) < 1000 * 50) { @@ -180,7 +180,7 @@ static void msi_wmi_notify(u32 value, void *context) key->code, ktime_to_us(diff)); return; } - last_pressed[key->code - KEYCODE_BASE] = cur; + last_pressed[key->code - SCANCODE_BASE] = cur; if (key->type == KE_KEY && /* Brightness is served via acpi video driver */ -- cgit v0.10.2 From 53c96dfdd0c0ccbba7aee84c60ce0f2aa466413f Mon Sep 17 00:00:00 2001 From: Zeng Zhaoming Date: Fri, 19 Nov 2010 00:46:19 +0800 Subject: ACPI, hp-wmi: Fix memory leak in acpi query Free acpi return memory after query. Signed-off-by: Zeng Zhaoming Signed-off-by: Matthew Garrett diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c index 1dac659..9e05af9 100644 --- a/drivers/platform/x86/hp-wmi.c +++ b/drivers/platform/x86/hp-wmi.c @@ -172,6 +172,8 @@ static int hp_wmi_perform_query(int query, int write, u32 *buffer, bios_return = *((struct bios_return *)obj->buffer.pointer); memcpy(buffer, &bios_return.value, sizeof(bios_return.value)); + + kfree(obj); return 0; } -- cgit v0.10.2 From e5cba24e3f018d4beb6acd101a82483c98f91ce7 Mon Sep 17 00:00:00 2001 From: Hitoshi Mitake Date: Fri, 26 Nov 2010 12:06:44 +0100 Subject: workqueue: check the allocation of system_unbound_wq I found a trivial bug on initialization of workqueue. Current init_workqueues doesn't check the result of allocation of system_unbound_wq, this should be checked like other queues. Signed-off-by: Hitoshi Mitake Cc: Arjan van de Ven Cc: David Howells Signed-off-by: Tejun Heo diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 90db1bd..ca017ce 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -3692,7 +3692,8 @@ static int __init init_workqueues(void) system_nrt_wq = alloc_workqueue("events_nrt", WQ_NON_REENTRANT, 0); system_unbound_wq = alloc_workqueue("events_unbound", WQ_UNBOUND, WQ_UNBOUND_MAX_ACTIVE); - BUG_ON(!system_wq || !system_long_wq || !system_nrt_wq); + BUG_ON(!system_wq || !system_long_wq || !system_nrt_wq || + !system_unbound_wq); return 0; } early_initcall(init_workqueues); -- cgit v0.10.2 From 49f4138346b3cec2706adff02658fe27ceb1e46f Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Fri, 26 Nov 2010 13:42:47 +0100 Subject: printk: Fix wake_up_klogd() vs cpu hotplug wake_up_klogd() may get called from preemptible context but uses __raw_get_cpu_var() to write to a per cpu variable. If it gets preempted between getting the address and writing to it, the cpu in question could be offline if the process gets scheduled back and hence writes to the per cpu data of an offline cpu. This buggy behaviour was introduced with fa33507a "printk: robustify printk, fix #2" which was supposed to fix a "using smp_processor_id() in preemptible" warning. Let's use this_cpu_write() instead which disables preemption and makes sure that the outlined scenario cannot happen. Signed-off-by: Heiko Carstens Acked-by: Eric Dumazet Signed-off-by: Peter Zijlstra LKML-Reference: <20101126124247.GC7023@osiris.boeblingen.de.ibm.com> Signed-off-by: Ingo Molnar diff --git a/kernel/printk.c b/kernel/printk.c index 9a2264f..cf7588e9 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -1088,7 +1088,7 @@ int printk_needs_cpu(int cpu) void wake_up_klogd(void) { if (waitqueue_active(&log_wait)) - __raw_get_cpu_var(printk_pending) = 1; + this_cpu_write(printk_pending, 1); } /** -- cgit v0.10.2 From 61ab25447ad6334a74e32f60efb135a3467223f8 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Fri, 26 Nov 2010 13:00:59 +0100 Subject: nohz: Fix printk_needs_cpu() return value on offline cpus This patch fixes a hang observed with 2.6.32 kernels where timers got enqueued on offline cpus. printk_needs_cpu() may return 1 if called on offline cpus. When a cpu gets offlined it schedules the idle process which, before killing its own cpu, will call tick_nohz_stop_sched_tick(). That function in turn will call printk_needs_cpu() in order to check if the local tick can be disabled. On offline cpus this function should naturally return 0 since regardless if the tick gets disabled or not the cpu will be dead short after. That is besides the fact that __cpu_disable() should already have made sure that no interrupts on the offlined cpu will be delivered anyway. In this case it prevents tick_nohz_stop_sched_tick() to call select_nohz_load_balancer(). No idea if that really is a problem. However what made me debug this is that on 2.6.32 the function get_nohz_load_balancer() is used within __mod_timer() to select a cpu on which a timer gets enqueued. If printk_needs_cpu() returns 1 then the nohz_load_balancer cpu doesn't get updated when a cpu gets offlined. It may contain the cpu number of an offline cpu. In turn timers get enqueued on an offline cpu and not very surprisingly they never expire and cause system hangs. This has been observed 2.6.32 kernels. On current kernels __mod_timer() uses get_nohz_timer_target() which doesn't have that problem. However there might be other problems because of the too early exit tick_nohz_stop_sched_tick() in case a cpu goes offline. Easiest way to fix this is just to test if the current cpu is offline and call printk_tick() directly which clears the condition. Alternatively I tried a cpu hotplug notifier which would clear the condition, however between calling the notifier function and printk_needs_cpu() something could have called printk() again and the problem is back again. This seems to be the safest fix. Signed-off-by: Heiko Carstens Signed-off-by: Peter Zijlstra Cc: stable@kernel.org LKML-Reference: <20101126120235.406766476@de.ibm.com> Signed-off-by: Ingo Molnar diff --git a/kernel/printk.c b/kernel/printk.c index cf7588e9..a23315d 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -1082,6 +1082,8 @@ void printk_tick(void) int printk_needs_cpu(int cpu) { + if (unlikely(cpu_is_offline(cpu))) + printk_tick(); return per_cpu(printk_pending, cpu); } -- cgit v0.10.2 From e7a3481c0246c8e45e79c629efd63b168e91fcda Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Mon, 25 Oct 2010 16:53:46 -0700 Subject: x86/pvclock: Zero last_value on resume If the guest domain has been suspend/resumed or migrated, then the system clock backing the pvclock clocksource may revert to a smaller value (ie, can be non-monotonic across the migration/save-restore). Make sure we zero last_value in that case so that the domain continues to see clock updates. Signed-off-by: Jeremy Fitzhardinge Signed-off-by: Ingo Molnar diff --git a/arch/x86/include/asm/pvclock.h b/arch/x86/include/asm/pvclock.h index 7f7e577..31d84ac 100644 --- a/arch/x86/include/asm/pvclock.h +++ b/arch/x86/include/asm/pvclock.h @@ -11,6 +11,7 @@ unsigned long pvclock_tsc_khz(struct pvclock_vcpu_time_info *src); void pvclock_read_wallclock(struct pvclock_wall_clock *wall, struct pvclock_vcpu_time_info *vcpu, struct timespec *ts); +void pvclock_resume(void); /* * Scale a 64-bit delta by scaling and multiplying by a 32-bit fraction, diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c index 008b91e..42eb330 100644 --- a/arch/x86/kernel/pvclock.c +++ b/arch/x86/kernel/pvclock.c @@ -83,6 +83,11 @@ unsigned long pvclock_tsc_khz(struct pvclock_vcpu_time_info *src) static atomic64_t last_value = ATOMIC64_INIT(0); +void pvclock_resume(void) +{ + atomic64_set(&last_value, 0); +} + cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src) { struct pvclock_shadow_time shadow; diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c index b2bb5aa..5da5e53 100644 --- a/arch/x86/xen/time.c +++ b/arch/x86/xen/time.c @@ -426,6 +426,8 @@ void xen_timer_resume(void) { int cpu; + pvclock_resume(); + if (xen_clockevent != &xen_vcpuop_clockevent) return; -- cgit v0.10.2 From e4dde731ae70072338352c6f8fb75fd04a42cf8d Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Mon, 29 Nov 2010 10:19:07 +0200 Subject: vhost: correctly set bits of dirty pages Fix two bugs in dirty page logging: When counting pages we should increase address by 1 instead of VHOST_PAGE_SIZE. Make log_write() correctly process requests that cross pages with write_address not starting at page boundary. Reported-by: Jason Wang Signed-off-by: Michael S. Tsirkin diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 94701ff..159c77a 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -884,6 +884,7 @@ static int log_write(void __user *log_base, int r; if (!write_length) return 0; + write_length += write_address % VHOST_PAGE_SIZE; write_address /= VHOST_PAGE_SIZE; for (;;) { u64 base = (u64)(unsigned long)log_base; @@ -897,7 +898,7 @@ static int log_write(void __user *log_base, if (write_length <= VHOST_PAGE_SIZE) break; write_length -= VHOST_PAGE_SIZE; - write_address += VHOST_PAGE_SIZE; + write_address += 1; } return r; } -- cgit v0.10.2 From 517ff43146b17a0d067125f098f675d1e0ac2d82 Mon Sep 17 00:00:00 2001 From: Daniel Drake Date: Wed, 24 Nov 2010 16:00:49 +0000 Subject: libertas: fix memory corruption in lbs_remove_card() "priv" is stored at the end of the wiphy structure, which is freed during the call to lbs_cfg_free(). It must not be touched afterwards. Remove the unnecessary NULL assignment causing this memory corruption. Signed-off-by: Daniel Drake Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c index 46b88b1..fcd1bbf 100644 --- a/drivers/net/wireless/libertas/main.c +++ b/drivers/net/wireless/libertas/main.c @@ -915,8 +915,6 @@ void lbs_remove_card(struct lbs_private *priv) lbs_free_adapter(priv); lbs_cfg_free(priv); - - priv->dev = NULL; free_netdev(dev); lbs_deb_leave(LBS_DEB_MAIN); -- cgit v0.10.2 From 16ccdf0dbc84b11bc8b7fdbad66804d06a683554 Mon Sep 17 00:00:00 2001 From: Sven Neumann Date: Wed, 24 Nov 2010 16:02:00 +0000 Subject: libertas: fix invalid access card->priv must not be accessed after lbs_remove_card() was called as lbs_remove_card() frees card->priv via free_netdev(). For libertas_sdio this is a regression introduced by 23b149c1890f9. The correct fix to the issue described there is simply to remove the assignment. This flag is set at the appropriate time inside lbs_remove_card anyway. Reported-by: Daniel Drake Signed-off-by: Sven Neumann Signed-off-by: Daniel Drake Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/libertas/if_sdio.c b/drivers/net/wireless/libertas/if_sdio.c index e5685dc..b4de0ca 100644 --- a/drivers/net/wireless/libertas/if_sdio.c +++ b/drivers/net/wireless/libertas/if_sdio.c @@ -1170,7 +1170,6 @@ static void if_sdio_remove(struct sdio_func *func) lbs_deb_sdio("call remove card\n"); lbs_stop_card(card->priv); lbs_remove_card(card->priv); - card->priv->surpriseremoved = 1; flush_workqueue(card->workqueue); destroy_workqueue(card->workqueue); diff --git a/drivers/net/wireless/libertas/if_spi.c b/drivers/net/wireless/libertas/if_spi.c index 79bcb4e5..ecd4d04 100644 --- a/drivers/net/wireless/libertas/if_spi.c +++ b/drivers/net/wireless/libertas/if_spi.c @@ -1055,7 +1055,6 @@ static int __devexit libertas_spi_remove(struct spi_device *spi) lbs_stop_card(priv); lbs_remove_card(priv); /* will call free_netdev */ - priv->surpriseremoved = 1; free_irq(spi->irq, card); if_spi_terminate_spi_thread(card); if (card->pdata->teardown) -- cgit v0.10.2 From 98c316e348bedffa730e6f1e4baeb8a3c3e0f28b Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Thu, 25 Nov 2010 18:26:07 +0100 Subject: ath9k: use per-device struct for pm_qos_* operations The ath9k driver uses a shared pm_qos_request_list structure for all devices. This causes the following warning if more than one device is present in the system: WARNING: at kernel/pm_qos_params.c:234 ath9k_init_device+0x5e8/0x6b0() pm_qos_add_request() called for already added request Modules linked in: Call Trace: [<802b1cdc>] dump_stack+0x8/0x34 [<8007dd90>] warn_slowpath_common+0x78/0xa4 [<8007de44>] warn_slowpath_fmt+0x2c/0x38 [<801b0828>] ath9k_init_device+0x5e8/0x6b0 [<801bc508>] ath_pci_probe+0x2dc/0x39c [<80176254>] pci_device_probe+0x64/0xa4 [<8019471c>] driver_probe_device+0xbc/0x188 [<80194854>] __driver_attach+0x6c/0xa4 [<80193e20>] bus_for_each_dev+0x60/0xb0 [<80193580>] bus_add_driver+0xcc/0x268 [<80194c08>] driver_register+0xe0/0x198 [<801764e0>] __pci_register_driver+0x50/0xe0 [<80365f48>] ath9k_init+0x3c/0x6c [<8006050c>] do_one_initcall+0xfc/0x1d8 [<80355340>] kernel_init+0xd4/0x174 [<800639a4>] kernel_thread_helper+0x10/0x18 ---[ end trace 5345fc6f870564a6 ]--- This patch fixes that warning by using a separate pm_qos_request_list sructure for each device. Signed-off-by: Gabor Juhos Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 170d44a..0d0bec3 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -21,6 +21,7 @@ #include #include #include +#include #include "debug.h" #include "common.h" @@ -646,6 +647,8 @@ struct ath_softc { struct ath_descdma txsdma; struct ath_ant_comb ant_comb; + + struct pm_qos_request_list pm_qos_req; }; struct ath_wiphy { @@ -675,7 +678,6 @@ static inline void ath_read_cachesize(struct ath_common *common, int *csz) } extern struct ieee80211_ops ath9k_ops; -extern struct pm_qos_request_list ath9k_pm_qos_req; extern int modparam_nohwcrypt; extern int led_blink; diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c index 92bc5c5..c29eea2 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -15,7 +15,6 @@ */ #include -#include #include "ath9k.h" @@ -180,8 +179,6 @@ static const struct ath_ops ath9k_common_ops = { .write = ath9k_iowrite32, }; -struct pm_qos_request_list ath9k_pm_qos_req; - /**************************/ /* Initialization */ /**************************/ @@ -759,7 +756,7 @@ int ath9k_init_device(u16 devid, struct ath_softc *sc, u16 subsysid, ath_init_leds(sc); ath_start_rfkill_poll(sc); - pm_qos_add_request(&ath9k_pm_qos_req, PM_QOS_CPU_DMA_LATENCY, + pm_qos_add_request(&sc->pm_qos_req, PM_QOS_CPU_DMA_LATENCY, PM_QOS_DEFAULT_VALUE); return 0; @@ -830,7 +827,7 @@ void ath9k_deinit_device(struct ath_softc *sc) } ieee80211_unregister_hw(hw); - pm_qos_remove_request(&ath9k_pm_qos_req); + pm_qos_remove_request(&sc->pm_qos_req); ath_rx_cleanup(sc); ath_tx_cleanup(sc); ath9k_deinit_softc(sc); diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 25d3ef4..1cdbdbe 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -15,7 +15,6 @@ */ #include -#include #include "ath9k.h" #include "btcoex.h" @@ -1244,7 +1243,7 @@ static int ath9k_start(struct ieee80211_hw *hw) ath9k_btcoex_timer_resume(sc); } - pm_qos_update_request(&ath9k_pm_qos_req, 55); + pm_qos_update_request(&sc->pm_qos_req, 55); mutex_unlock: mutex_unlock(&sc->mutex); @@ -1423,7 +1422,7 @@ static void ath9k_stop(struct ieee80211_hw *hw) sc->sc_flags |= SC_OP_INVALID; - pm_qos_update_request(&ath9k_pm_qos_req, PM_QOS_DEFAULT_VALUE); + pm_qos_update_request(&sc->pm_qos_req, PM_QOS_DEFAULT_VALUE); mutex_unlock(&sc->mutex); -- cgit v0.10.2 From c426ee247e40a70490f3d67d3c9c7d1aba54516f Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 26 Nov 2010 11:38:04 +0100 Subject: ath9k/carl9170: advertise P2P With some upcoming changes we'd like to use the interface types for P2P capability tests. Enable them now so that when we add those tests in wpa_supplicant, nothing will break. Signed-off-by: Johannes Berg 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 c29eea2..14b8ab3 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -661,6 +661,8 @@ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) hw->flags |= IEEE80211_HW_MFP_CAPABLE; hw->wiphy->interface_modes = + BIT(NL80211_IFTYPE_P2P_GO) | + BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_AP) | BIT(NL80211_IFTYPE_WDS) | BIT(NL80211_IFTYPE_STATION) | diff --git a/drivers/net/wireless/ath/carl9170/fw.c b/drivers/net/wireless/ath/carl9170/fw.c index ae6c006..546b4e4 100644 --- a/drivers/net/wireless/ath/carl9170/fw.c +++ b/drivers/net/wireless/ath/carl9170/fw.c @@ -291,7 +291,8 @@ static int carl9170_fw(struct ar9170 *ar, const __u8 *data, size_t len) if (SUPP(CARL9170FW_WLANTX_CAB)) { ar->hw->wiphy->interface_modes |= - BIT(NL80211_IFTYPE_AP); + BIT(NL80211_IFTYPE_AP) | + BIT(NL80211_IFTYPE_P2P_GO); } } diff --git a/drivers/net/wireless/ath/carl9170/main.c b/drivers/net/wireless/ath/carl9170/main.c index a314c2c..dc7b30b 100644 --- a/drivers/net/wireless/ath/carl9170/main.c +++ b/drivers/net/wireless/ath/carl9170/main.c @@ -1631,7 +1631,8 @@ void *carl9170_alloc(size_t priv_size) * supports these modes. The code which will add the * additional interface_modes is in fw.c. */ - hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); + hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | + BIT(NL80211_IFTYPE_P2P_CLIENT); hw->flags |= IEEE80211_HW_RX_INCLUDES_FCS | IEEE80211_HW_REPORTS_TX_ACK_STATUS | -- cgit v0.10.2 From 46047784b8cdcfc916f6c1cccee0c18dd1223dfd Mon Sep 17 00:00:00 2001 From: Rajkumar Manoharan Date: Fri, 26 Nov 2010 23:24:31 +0530 Subject: ath9k: Disable SWBA interrupt on remove_interface while removing beaconing mode interface, SWBA interrupt was never disabled when there are no other beaconing interfaces. Cc: stable@kernel.org Signed-off-by: Rajkumar 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 1cdbdbe..dace215 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -1519,6 +1519,7 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw, struct ath_softc *sc = aphy->sc; struct ath_common *common = ath9k_hw_common(sc->sc_ah); struct ath_vif *avp = (void *)vif->drv_priv; + bool bs_valid = false; int i; ath_print(common, ATH_DBG_CONFIG, "Detach Interface\n"); @@ -1547,7 +1548,15 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw, "slot\n", __func__); sc->beacon.bslot[i] = NULL; sc->beacon.bslot_aphy[i] = NULL; - } + } else if (sc->beacon.bslot[i]) + bs_valid = true; + } + if (!bs_valid && (sc->sc_ah->imask & ATH9K_INT_SWBA)) { + /* Disable SWBA interrupt */ + sc->sc_ah->imask &= ~ATH9K_INT_SWBA; + ath9k_ps_wakeup(sc); + ath9k_hw_set_interrupts(sc->sc_ah, sc->sc_ah->imask); + ath9k_ps_restore(sc); } sc->nvifs--; -- cgit v0.10.2 From 7dff3125534c1d035a910052335a3a39fbb31aa7 Mon Sep 17 00:00:00 2001 From: Jouni Malinen Date: Fri, 26 Nov 2010 20:41:55 +0200 Subject: mac80211: Fix frame injection using non-AP vif In order for frame injection to work properly for some use cases (e.g., finding the station entry and keys for encryption), mac80211 needs to find the correct sdata entry. This works when the main vif is in AP mode, but commit a2c1e3dad516618cb0fbfb1a62c36d0b0744573a broke this particular use case for station main vif. While this type of injection is quite unusual operation, it has some uses and we should fix it. Do this by changing the monitor vif sdata selection to allow station vif to be selected instead of limiting it to just AP vifs. We still need to skip some iftypes to avoid selecting unsuitable vif for injection. Signed-off-by: Jouni Malinen Signed-off-by: John W. Linville diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 96c5943..df6aac5 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -1587,7 +1587,12 @@ static void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, list) { if (!ieee80211_sdata_running(tmp_sdata)) continue; - if (tmp_sdata->vif.type != NL80211_IFTYPE_AP) + if (tmp_sdata->vif.type == + NL80211_IFTYPE_MONITOR || + tmp_sdata->vif.type == + NL80211_IFTYPE_AP_VLAN || + tmp_sdata->vif.type == + NL80211_IFTYPE_WDS) continue; if (compare_ether_addr(tmp_sdata->vif.addr, hdr->addr2) == 0) { -- cgit v0.10.2 From 5c5e138b590a748c57d54b39634cda974ab9af1d Mon Sep 17 00:00:00 2001 From: Christian Lamparter Date: Fri, 26 Nov 2010 23:29:23 +0100 Subject: carl9170: fix carl9170_tx_prepare typo commit: "carl9170: revamp carl9170_tx_prepare" introduced a peculiar bug that would only show up if the the module parameter noht is set to 1. Then all outbound voice, video and background frames would each invoke a (bogus) RTS/CTS handshake. Signed-off-by: Christian Lamparter Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/carl9170/tx.c b/drivers/net/wireless/ath/carl9170/tx.c index b575c86..7e6506a 100644 --- a/drivers/net/wireless/ath/carl9170/tx.c +++ b/drivers/net/wireless/ath/carl9170/tx.c @@ -810,7 +810,7 @@ static int carl9170_tx_prepare(struct ar9170 *ar, struct sk_buff *skb) mac_tmp = cpu_to_le16(AR9170_TX_MAC_HW_DURATION | AR9170_TX_MAC_BACKOFF); - mac_tmp |= cpu_to_le16((hw_queue << AR9170_TX_MAC_QOS_S) && + mac_tmp |= cpu_to_le16((hw_queue << AR9170_TX_MAC_QOS_S) & AR9170_TX_MAC_QOS); no_ack = !!(info->flags & IEEE80211_TX_CTL_NO_ACK); -- cgit v0.10.2 From 4249f8acf993046948dc1f2e74244fe484c8cb8f Mon Sep 17 00:00:00 2001 From: Yauhen Kharuzhy Date: Sun, 28 Nov 2010 20:30:19 +0200 Subject: ARM: SMDK2416: Select MACH_SMDK, S3C_DEV_NAND, S3C_DEV_USB_HOST Enable compilation of platform devices and initialization code used in SMDK2416 board file. Signed-off-by: Yauhen Kharuzhy Signed-off-by: Ben Dooks diff --git a/arch/arm/mach-s3c2416/Kconfig b/arch/arm/mach-s3c2416/Kconfig index 87b9c9f..27b3e7c 100644 --- a/arch/arm/mach-s3c2416/Kconfig +++ b/arch/arm/mach-s3c2416/Kconfig @@ -35,9 +35,12 @@ menu "S3C2416 Machines" config MACH_SMDK2416 bool "SMDK2416" select CPU_S3C2416 + select MACH_SMDK select S3C_DEV_FB select S3C_DEV_HSMMC select S3C_DEV_HSMMC1 + select S3C_DEV_NAND + select S3C_DEV_USB_HOST select S3C2416_PM if PM help Say Y here if you are using an SMDK2416 -- cgit v0.10.2 From 71f608ef56c987c5325c3aaf9c3fadd4ddc77f64 Mon Sep 17 00:00:00 2001 From: Yauhen Kharuzhy Date: Sun, 28 Nov 2010 20:30:23 +0200 Subject: ARM: S3C2443: Select properly ARM core type Select ARM920T core when compiling kernel for s3c2443. Signed-off-by: Yauhen Kharuzhy Signed-off-by: Ben Dooks diff --git a/arch/arm/mach-s3c2443/Kconfig b/arch/arm/mach-s3c2443/Kconfig index 4fef723..31babec 100644 --- a/arch/arm/mach-s3c2443/Kconfig +++ b/arch/arm/mach-s3c2443/Kconfig @@ -5,6 +5,7 @@ config CPU_S3C2443 bool depends on ARCH_S3C2410 + select CPU_ARM920T select S3C2443_DMA if S3C2410_DMA select CPU_LLSERIAL_S3C2440 select SAMSUNG_CLKSRC -- cgit v0.10.2 From 4acf89fb3bbb01ba9de4a7cc102e46095a12c94e Mon Sep 17 00:00:00 2001 From: Yauhen Kharuzhy Date: Sun, 28 Nov 2010 20:30:27 +0200 Subject: ARM: S3C2412: Fix typo in CONFIG_CPU_S3C2412_ONLY definition Dependency on (CPU_S3C2416 is not selected) was defined as "!CPU_2416", instead of "!CPU_S3C2416". Fix it. Signed-off-by: Yauhen Kharuzhy Signed-off-by: Ben Dooks diff --git a/arch/arm/mach-s3c2412/Kconfig b/arch/arm/mach-s3c2412/Kconfig index cef6a65..fa2e5bf 100644 --- a/arch/arm/mach-s3c2412/Kconfig +++ b/arch/arm/mach-s3c2412/Kconfig @@ -16,7 +16,7 @@ config CPU_S3C2412 config CPU_S3C2412_ONLY bool depends on ARCH_S3C2410 && !CPU_S3C2400 && !CPU_S3C2410 && \ - !CPU_2416 && !CPU_S3C2440 && !CPU_S3C2442 && \ + !CPU_S3C2416 && !CPU_S3C2440 && !CPU_S3C2442 && \ !CPU_S3C2443 && CPU_S3C2412 default y if CPU_S3C2412 -- cgit v0.10.2 From 1db550118c46d96f371de5b3d0bd51edb148bd54 Mon Sep 17 00:00:00 2001 From: Jason Chagas Date: Mon, 15 Nov 2010 09:50:12 +0800 Subject: ARM: mmp2: remove not used clk_rtc RTC clock will remain at 32KHz and powered on, there is no need for it at this moment. Signed-off-by: Jason Chagas Signed-off-by: Eric Miao diff --git a/arch/arm/mach-mmp/mmp2.c b/arch/arm/mach-mmp/mmp2.c index daf3993..2e3dd08 100644 --- a/arch/arm/mach-mmp/mmp2.c +++ b/arch/arm/mach-mmp/mmp2.c @@ -126,7 +126,6 @@ static APBC_CLK(twsi3, MMP2_TWSI3, 0, 26000000); static APBC_CLK(twsi4, MMP2_TWSI4, 0, 26000000); static APBC_CLK(twsi5, MMP2_TWSI5, 0, 26000000); static APBC_CLK(twsi6, MMP2_TWSI6, 0, 26000000); -static APBC_CLK(rtc, MMP2_RTC, 0, 32768); static APMU_CLK(nand, NAND, 0xbf, 100000000); -- cgit v0.10.2 From f9d1bf755315a66353a7f42319cff471b36fffb3 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Sun, 10 Oct 2010 00:34:28 +0200 Subject: ARM: pxa: fix pxa2xx-flash section mismatch Signed-off-by: Marek Vasut Acked-by: Haojian Zhuang Signed-off-by: Eric Miao diff --git a/drivers/mtd/maps/pxa2xx-flash.c b/drivers/mtd/maps/pxa2xx-flash.c index dd90880..d8ae634 100644 --- a/drivers/mtd/maps/pxa2xx-flash.c +++ b/drivers/mtd/maps/pxa2xx-flash.c @@ -51,7 +51,7 @@ struct pxa2xx_flash_info { static const char *probes[] = { "RedBoot", "cmdlinepart", NULL }; -static int __init pxa2xx_flash_probe(struct platform_device *pdev) +static int __devinit pxa2xx_flash_probe(struct platform_device *pdev) { struct flash_platform_data *flash = pdev->dev.platform_data; struct pxa2xx_flash_info *info; -- cgit v0.10.2 From 9f1ee150fc7039eb65039ab17d9a95dfa6250133 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Sat, 6 Nov 2010 23:34:03 +0100 Subject: ARM: pxa/palm: fix ifdef around gen_nand driver registration Reported-by: Rafael Gandolfi Signed-off-by: Marek Vasut Signed-off-by: Eric Miao diff --git a/arch/arm/mach-pxa/palmtx.c b/arch/arm/mach-pxa/palmtx.c index d2060a1..e5c9932 100644 --- a/arch/arm/mach-pxa/palmtx.c +++ b/arch/arm/mach-pxa/palmtx.c @@ -241,7 +241,8 @@ static inline void palmtx_keys_init(void) {} /****************************************************************************** * NAND Flash ******************************************************************************/ -#if defined(CONFIG_MTD_NAND_GPIO) || defined(CONFIG_MTD_NAND_GPIO_MODULE) +#if defined(CONFIG_MTD_NAND_PLATFORM) || \ + defined(CONFIG_MTD_NAND_PLATFORM_MODULE) static void palmtx_nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { -- cgit v0.10.2 From d9d318d39dd5cb686660504a3565aac453709ccc Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Tue, 30 Nov 2010 16:39:27 +0100 Subject: fuse: fix ioctl when server is 32bit If a 32bit CUSE server is run on 64bit this results in EIO being returned to the caller. The reason is that FUSE_IOCTL_RETRY reply was defined to use 'struct iovec', which is different on 32bit and 64bit archs. Work around this by looking at the size of the reply to determine which struct was used. This is only needed if CONFIG_COMPAT is defined. A more permanent fix for the interface will be to use the same struct on both 32bit and 64bit. Reported-by: "ccmail111" Signed-off-by: Miklos Szeredi CC: Tejun Heo CC: [2.6.31+] diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 9242d29..0e2e25b 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -13,6 +13,7 @@ #include #include #include +#include static const struct file_operations fuse_direct_io_file_operations; @@ -1628,6 +1629,44 @@ static int fuse_ioctl_copy_user(struct page **pages, struct iovec *iov, } /* + * CUSE servers compiled on 32bit broke on 64bit kernels because the + * ABI was defined to be 'struct iovec' which is different on 32bit + * and 64bit. Fortunately we can determine which structure the server + * used from the size of the reply. + */ +static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src, + size_t transferred, unsigned count, + bool is_compat) +{ +#ifdef CONFIG_COMPAT + if (count * sizeof(struct compat_iovec) == transferred) { + struct compat_iovec *ciov = src; + unsigned i; + + /* + * With this interface a 32bit server cannot support + * non-compat (i.e. ones coming from 64bit apps) ioctl + * requests + */ + if (!is_compat) + return -EINVAL; + + for (i = 0; i < count; i++) { + dst[i].iov_base = compat_ptr(ciov[i].iov_base); + dst[i].iov_len = ciov[i].iov_len; + } + return 0; + } +#endif + + if (count * sizeof(struct iovec) != transferred) + return -EIO; + + memcpy(dst, src, transferred); + return 0; +} + +/* * For ioctls, there is no generic way to determine how much memory * needs to be read and/or written. Furthermore, ioctls are allowed * to dereference the passed pointer, so the parameter requires deep @@ -1808,14 +1847,13 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg, in_iovs + out_iovs > FUSE_IOCTL_MAX_IOV) goto out; - err = -EIO; - if ((in_iovs + out_iovs) * sizeof(struct iovec) != transferred) - goto out; - - /* okay, copy in iovs and retry */ vaddr = kmap_atomic(pages[0], KM_USER0); - memcpy(page_address(iov_page), vaddr, transferred); + err = fuse_copy_ioctl_iovec(page_address(iov_page), vaddr, + transferred, in_iovs + out_iovs, + (flags & FUSE_IOCTL_COMPAT) != 0); kunmap_atomic(vaddr, KM_USER0); + if (err) + goto out; in_iov = page_address(iov_page); out_iov = in_iov + in_iovs; -- cgit v0.10.2 From 7572777eef78ebdee1ecb7c258c0ef94d35bad16 Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Tue, 30 Nov 2010 16:39:27 +0100 Subject: fuse: verify ioctl retries Verify that the total length of the iovec returned in FUSE_IOCTL_RETRY doesn't overflow iov_length(). Signed-off-by: Miklos Szeredi CC: Tejun Heo CC: [2.6.31+] diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 0e2e25b..8b984a2 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -1666,6 +1666,20 @@ static int fuse_copy_ioctl_iovec(struct iovec *dst, void *src, return 0; } +/* Make sure iov_length() won't overflow */ +static int fuse_verify_ioctl_iov(struct iovec *iov, size_t count) +{ + size_t n; + u32 max = FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT; + + for (n = 0; n < count; n++) { + if (iov->iov_len > (size_t) max) + return -ENOMEM; + max -= iov->iov_len; + } + return 0; +} + /* * For ioctls, there is no generic way to determine how much memory * needs to be read and/or written. Furthermore, ioctls are allowed @@ -1858,6 +1872,14 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg, in_iov = page_address(iov_page); out_iov = in_iov + in_iovs; + err = fuse_verify_ioctl_iov(in_iov, in_iovs); + if (err) + goto out; + + err = fuse_verify_ioctl_iov(out_iov, out_iovs); + if (err) + goto out; + goto retry; } -- cgit v0.10.2 From 8a9533123f43f2cdb3eb601c17ff2ad336882eff Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Mon, 29 Nov 2010 12:44:15 -0200 Subject: perf symbols: Fix kallsyms kernel/module map splitting On ARM, module addresss space is ahead of kernel space, so the module symbols are handled before kernel symbol in dso__split_kallsyms, then was causing one map to be created for each kernel symbol. Reported-by: Ming Lei Tested-by: Ming Lei Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Mike Galbraith Cc: Ming Lei Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Tom Zanussi LKML-Reference: <20101124144540.GB15875@ghostprotocols.net> Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 0500895..2af4d7d 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -532,7 +532,7 @@ static int dso__split_kallsyms(struct dso *self, struct map *map, struct machine *machine = kmaps->machine; struct map *curr_map = map; struct symbol *pos; - int count = 0; + int count = 0, moved = 0; struct rb_root *root = &self->symbols[map->type]; struct rb_node *next = rb_first(root); int kernel_range = 0; @@ -590,6 +590,11 @@ static int dso__split_kallsyms(struct dso *self, struct map *map, char dso_name[PATH_MAX]; struct dso *dso; + if (count == 0) { + curr_map = map; + goto filter_symbol; + } + if (self->kernel == DSO_TYPE_GUEST_KERNEL) snprintf(dso_name, sizeof(dso_name), "[guest.kernel].%d", @@ -615,7 +620,7 @@ static int dso__split_kallsyms(struct dso *self, struct map *map, map_groups__insert(kmaps, curr_map); ++kernel_range; } - +filter_symbol: if (filter && filter(curr_map, pos)) { discard_symbol: rb_erase(&pos->rb_node, root); symbol__delete(pos); @@ -623,8 +628,9 @@ discard_symbol: rb_erase(&pos->rb_node, root); if (curr_map != map) { rb_erase(&pos->rb_node, root); symbols__insert(&curr_map->dso->symbols[curr_map->type], pos); - } - count++; + ++moved; + } else + ++count; } } @@ -634,7 +640,7 @@ discard_symbol: rb_erase(&pos->rb_node, root); dso__set_loaded(curr_map->dso, curr_map->type); } - return count; + return count + moved; } int dso__load_kallsyms(struct dso *self, const char *filename, -- cgit v0.10.2 From d214afbd81405d4da2c5745fe867e6b313fd4178 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Thu, 25 Nov 2010 19:27:25 +0800 Subject: perf symbols: Figure out start address of kernel map from kallsyms On ARM, module symbol start address is ahead of kernel symbol start address, so we can't suppose that the start address of kernel map always is zero, otherwise may cause incorrect .start and .end of kernel map (caused by fixup) when there are modules loaded, then map_groups__find may return incorrect map for symbol query. This patch always figures out the start address of kernel map from /proc/kallsyms if the file is available, so fix the issues on ARM for module loaded case. This patch fixes the following issues on ARM when modules are loaded: - vmlinux symbol can't be found by kallsyms maps doing 'perf test' - module symbols are parsed mistakenlly when doing 'perf top'/'perf report' Cc: Ian Munsie Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Tom Zanussi LKML-Reference: <20101125192725.62d31b42@tom-lei> Signed-off-by: Ming Lei Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 2af4d7d..d628c8d 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -2131,14 +2131,55 @@ static struct dso *machine__create_kernel(struct machine *self) return kernel; } +struct process_args { + u64 start; +}; + +static int symbol__in_kernel(void *arg, const char *name, + char type __used, u64 start) +{ + struct process_args *args = arg; + + if (strchr(name, '[')) + return 0; + + args->start = start; + return 1; +} + +/* Figure out the start address of kernel map from /proc/kallsyms */ +static u64 machine__get_kernel_start_addr(struct machine *machine) +{ + const char *filename; + char path[PATH_MAX]; + struct process_args args; + + if (machine__is_host(machine)) { + filename = "/proc/kallsyms"; + } else { + if (machine__is_default_guest(machine)) + filename = (char *)symbol_conf.default_guest_kallsyms; + else { + sprintf(path, "%s/proc/kallsyms", machine->root_dir); + filename = path; + } + } + + if (kallsyms__parse(filename, &args, symbol__in_kernel) <= 0) + return 0; + + return args.start; +} + int __machine__create_kernel_maps(struct machine *self, struct dso *kernel) { enum map_type type; + u64 start = machine__get_kernel_start_addr(self); for (type = 0; type < MAP__NR_TYPES; ++type) { struct kmap *kmap; - self->vmlinux_maps[type] = map__new2(0, kernel, type); + self->vmlinux_maps[type] = map__new2(start, kernel, type); if (self->vmlinux_maps[type] == NULL) return -1; -- cgit v0.10.2 From 60e677373be9c0bf7c9a22937601d5a40e51c042 Mon Sep 17 00:00:00 2001 From: Franck Bui-Huu Date: Tue, 30 Nov 2010 12:50:14 +0100 Subject: perf header: Don't assume there's no attr info if no sample ids is provided This primarily fixes perf-report, which didn't report the correct type of event if perf-record was called to record one event different from 'cycles': $ perf record -e instructions true [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.007 MB perf.data (~295 samples) ] $ perf report | head -n1 # Events: 7 cycles LPU-Reference: Signed-off-by: Franck Bui-Huu diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index d7e67b1..64a85ba 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -946,11 +946,16 @@ perf_header__find_attr(u64 id, struct perf_header *header) /* * We set id to -1 if the data file doesn't contain sample - * ids. Check for this and avoid walking through the entire - * list of ids which may be large. + * ids. This can happen when the data file contains one type + * of event and in that case, the header can still store the + * event attribute information. Check for this and avoid + * walking through the entire list of ids which may be large. */ - if (id == -1ULL) + if (id == -1ULL) { + if (header->attrs > 0) + return &header->attr[0]->attr; return NULL; + } for (i = 0; i < header->attrs; i++) { struct perf_header_attr *attr = header->attr[i]; -- cgit v0.10.2 From cf63495d0dbe435b475a44672f5dee150da6471b Mon Sep 17 00:00:00 2001 From: David Kilroy Date: Wed, 24 Nov 2010 20:33:02 +0000 Subject: orinoco: abort scan on interface down This fixes the problem causing the following trace: ------------[ cut here ]------------ WARNING: at linux-2.6.34/net/wireless/core.c:633 wdev_cleanup_work+0xb7/0xe0 [cfg80211]() Hardware name: Latitude C840 Pid: 707, comm: cfg80211 Not tainted 2.6.34.7-0.5-desktop #1 Call Trace: [] try_stack_unwind+0x173/0x190 [] dump_trace+0x3f/0xe0 [] show_trace_log_lvl+0x4b/0x60 [] show_trace+0x18/0x20 [] dump_stack+0x6d/0x72 [] warn_slowpath_common+0x6e/0xb0 [] warn_slowpath_null+0x13/0x20 [] wdev_cleanup_work+0xb7/0xe0 [cfg80211] [] run_workqueue+0x79/0x170 [] worker_thread+0x83/0xe0 [] kthread+0x74/0x80 [] kernel_thread_helper+0x6/0x10 ---[ end trace 3f0348b3b0c6f4ff ]--- Reported by: Giacomo Comes Signed-off-by: David Kilroy Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/orinoco/main.c b/drivers/net/wireless/orinoco/main.c index e8e2d0f..fa0cf74 100644 --- a/drivers/net/wireless/orinoco/main.c +++ b/drivers/net/wireless/orinoco/main.c @@ -1392,10 +1392,9 @@ static void orinoco_process_scan_results(struct work_struct *work) orinoco_add_hostscan_results(priv, buf, len); kfree(buf); - } else if (priv->scan_request) { + } else { /* Either abort or complete the scan */ - cfg80211_scan_done(priv->scan_request, (len < 0)); - priv->scan_request = NULL; + orinoco_scan_done(priv, (len < 0)); } spin_lock_irqsave(&priv->scan_lock, flags); @@ -1684,6 +1683,8 @@ static int __orinoco_down(struct orinoco_private *priv) hermes_write_regn(hw, EVACK, 0xffff); } + orinoco_scan_done(priv, true); + /* firmware will have to reassociate */ netif_carrier_off(dev); priv->last_linkstatus = 0xffff; @@ -1762,10 +1763,7 @@ void orinoco_reset(struct work_struct *work) orinoco_unlock(priv, &flags); /* Scanning support: Notify scan cancellation */ - if (priv->scan_request) { - cfg80211_scan_done(priv->scan_request, 1); - priv->scan_request = NULL; - } + orinoco_scan_done(priv, true); if (priv->hard_reset) { err = (*priv->hard_reset)(priv); diff --git a/drivers/net/wireless/orinoco/scan.c b/drivers/net/wireless/orinoco/scan.c index 4300d9d..86cb54c 100644 --- a/drivers/net/wireless/orinoco/scan.c +++ b/drivers/net/wireless/orinoco/scan.c @@ -229,3 +229,11 @@ void orinoco_add_hostscan_results(struct orinoco_private *priv, priv->scan_request = NULL; } } + +void orinoco_scan_done(struct orinoco_private *priv, bool abort) +{ + if (priv->scan_request) { + cfg80211_scan_done(priv->scan_request, abort); + priv->scan_request = NULL; + } +} diff --git a/drivers/net/wireless/orinoco/scan.h b/drivers/net/wireless/orinoco/scan.h index 2dc4e04..27281fb 100644 --- a/drivers/net/wireless/orinoco/scan.h +++ b/drivers/net/wireless/orinoco/scan.h @@ -16,5 +16,6 @@ void orinoco_add_extscan_result(struct orinoco_private *priv, void orinoco_add_hostscan_results(struct orinoco_private *dev, unsigned char *buf, size_t len); +void orinoco_scan_done(struct orinoco_private *priv, bool abort); #endif /* _ORINOCO_SCAN_H_ */ -- cgit v0.10.2 From 2c31333a8fde7e26936a9f5371d02ff12c490993 Mon Sep 17 00:00:00 2001 From: Christian Lamparter Date: Mon, 29 Nov 2010 20:53:23 +0100 Subject: mac80211: ignore non-bcast mcast deauth/disassoc franes This patch fixes an curious issue due to insufficient rx frame filtering. Saqeb Akhter reported frequent disconnects while streaming videos over samba: > [ 1166.512087] wlan1: deauthenticated from 30:46:9a:10:49:f7 (Reason: 7) > [ 1526.059997] wlan1: deauthenticated from 30:46:9a:10:49:f7 (Reason: 7) > [ 2125.324356] wlan1: deauthenticated from 30:46:9a:10:49:f7 (Reason: 7) > [...] The reason is that the device generates frames with slightly bogus SA/TA addresses. e.g.: [ 2314.402316] Ignore 9f:1f:31:f8:64:ff [ 2314.402321] Ignore 9f:1f:31:f8:64:ff [ 2352.453804] Ignore 0d:1f:31:f8:64:ff [ 2352.453808] Ignore 0d:1f:31:f8:64:ff ^^ the group-address flag is set! (the correct SA/TA would be: 00:1f:31:f8:64:ff) Since the AP does not know from where the frames come, it generates a DEAUTH response for the (invalid) mcast address. This mcast deauth frame then passes through all filters and tricks the stack into thinking that the AP brutally kicked us! This patch fixes the problem by simply ignoring non-broadcast, group-addressed deauth/disassoc frames. Cc: Jouni Malinen Cc: Johannes Berg Reported-by: Saqeb Akhter Signed-off-by: Christian Lamparter Signed-off-by: John W. Linville diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 902b03ee..3c87293 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -2247,6 +2247,10 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_data *rx) break; case cpu_to_le16(IEEE80211_STYPE_DEAUTH): case cpu_to_le16(IEEE80211_STYPE_DISASSOC): + if (is_multicast_ether_addr(mgmt->da) && + !is_broadcast_ether_addr(mgmt->da)) + return RX_DROP_MONITOR; + /* process only for station */ if (sdata->vif.type != NL80211_IFTYPE_STATION) return RX_DROP_MONITOR; -- cgit v0.10.2 From 8e26d5ad2f9c038609d42eebc676cd1107709eef Mon Sep 17 00:00:00 2001 From: Senthil Balasubramanian Date: Tue, 30 Nov 2010 20:15:38 +0530 Subject: mac80211: Fix STA disconnect due to MIC failure Th commit titled "mac80211: clean up rx handling wrt. found_sta" removed found_sta variable which caused a MIC failure event to be reported twice for a single failure to supplicant resulted in STA disconnect. This should fix WPA specific countermeasures WiFi test case (5.2.17) issues with mac80211 based drivers which report MIC failure events in rx status. Cc: Stable (2.6.37) Signed-off-by: Senthil Balasubramanian Signed-off-by: John W. Linville diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 3c87293..54fb4a0e 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -2745,6 +2745,7 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw, if (ieee80211_prepare_and_rx_handle(&rx, skb, true)) return; + goto out; } } @@ -2784,6 +2785,7 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw, return; } + out: dev_kfree_skb(skb); } -- cgit v0.10.2 From 916448e77f6bcaaa7f13c3de0c3851783ae2bfd0 Mon Sep 17 00:00:00 2001 From: Senthil Balasubramanian Date: Tue, 30 Nov 2010 20:15:39 +0530 Subject: ath9k: Fix STA disconnect issue due to received MIC failed bcast frames AR_RxKeyIdxValid will not be set for bcast/mcast frames and so relying this status for MIC failed frames is buggy. Due to this, MIC failure events for broadcast frames are not sent to supplicant resulted in AP disconnecting the STA. Able to pass Wifi Test case 5.2.18 with this fix. Cc: Stable (2.6.36+) Signed-off-by: Senthil Balasubramanian Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c index 8c13479..c996963 100644 --- a/drivers/net/wireless/ath/ath9k/mac.c +++ b/drivers/net/wireless/ath/ath9k/mac.c @@ -703,8 +703,7 @@ int ath9k_hw_rxprocdesc(struct ath_hw *ah, struct ath_desc *ds, rs->rs_phyerr = phyerr; } else if (ads.ds_rxstatus8 & AR_DecryptCRCErr) rs->rs_status |= ATH9K_RXERR_DECRYPT; - else if ((ads.ds_rxstatus8 & AR_MichaelErr) && - rs->rs_keyix != ATH9K_RXKEYIX_INVALID) + else if (ads.ds_rxstatus8 & AR_MichaelErr) rs->rs_status |= ATH9K_RXERR_MIC; else if (ads.ds_rxstatus8 & AR_KeyMiss) rs->rs_status |= ATH9K_RXERR_DECRYPT; diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index 1a62e35..14d479f 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -1049,9 +1049,11 @@ static void ath9k_rx_skb_postprocess(struct ath_common *common, int hdrlen, padpos, padsize; u8 keyix; __le16 fc; + bool is_mc; /* see if any padding is done by the hw and remove it */ hdr = (struct ieee80211_hdr *) skb->data; + is_mc = !!is_multicast_ether_addr(hdr->addr1); hdrlen = ieee80211_get_hdrlen_from_skb(skb); fc = hdr->frame_control; padpos = ath9k_cmn_padpos(hdr->frame_control); @@ -1072,7 +1074,7 @@ static void ath9k_rx_skb_postprocess(struct ath_common *common, keyix = rx_stats->rs_keyix; - if (!(keyix == ATH9K_RXKEYIX_INVALID) && !decrypt_error && + if ((is_mc || !(keyix == ATH9K_RXKEYIX_INVALID)) && !decrypt_error && ieee80211_has_protected(fc)) { rxs->flag |= RX_FLAG_DECRYPTED; } else if (ieee80211_has_protected(fc) -- cgit v0.10.2 From e62cac1fd035b4cde707285008499dbe71955a86 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 30 Nov 2010 14:33:29 -0800 Subject: sparc: Pass buffer pointer all the way down to prom_{get,put}char(). This gets us closer to being able to eliminate the use of dynamic and stack based buffers, so that we can adhere to the "no buffer addresses above 4GB" rule for PROM calls. Signed-off-by: David S. Miller diff --git a/arch/sparc/include/asm/openprom.h b/arch/sparc/include/asm/openprom.h index 81cd434..47eaafa 100644 --- a/arch/sparc/include/asm/openprom.h +++ b/arch/sparc/include/asm/openprom.h @@ -39,7 +39,7 @@ struct linux_dev_v2_funcs { int (*v2_dev_open)(char *devpath); void (*v2_dev_close)(int d); int (*v2_dev_read)(int d, char *buf, int nbytes); - int (*v2_dev_write)(int d, char *buf, int nbytes); + int (*v2_dev_write)(int d, const char *buf, int nbytes); int (*v2_dev_seek)(int d, int hi, int lo); /* Never issued (multistage load support) */ diff --git a/arch/sparc/include/asm/oplib_32.h b/arch/sparc/include/asm/oplib_32.h index 49fe426..4c25392 100644 --- a/arch/sparc/include/asm/oplib_32.h +++ b/arch/sparc/include/asm/oplib_32.h @@ -105,10 +105,10 @@ extern int prom_getprev(void); /* Character operations to/from the console.... */ /* Blocking get character from console. */ -extern char prom_getchar(void); +extern void prom_getchar(char *buf); /* Blocking put character to console. */ -extern void prom_putchar(char character); +extern void prom_putchar(const char *buf); /* Prom's internal routines, don't use in kernel/boot code. */ extern void prom_printf(const char *fmt, ...); diff --git a/arch/sparc/include/asm/oplib_64.h b/arch/sparc/include/asm/oplib_64.h index d541de4..384e558 100644 --- a/arch/sparc/include/asm/oplib_64.h +++ b/arch/sparc/include/asm/oplib_64.h @@ -97,10 +97,10 @@ extern unsigned char prom_get_idprom(char *idp_buffer, int idpbuf_size); /* Character operations to/from the console.... */ /* Blocking get character from console. */ -extern char prom_getchar(void); +extern void prom_getchar(char *buf); /* Blocking put character to console. */ -extern void prom_putchar(char character); +extern void prom_putchar(const char *buf); /* Prom's internal routines, don't use in kernel/boot code. */ extern void prom_printf(const char *fmt, ...); diff --git a/arch/sparc/prom/console_32.c b/arch/sparc/prom/console_32.c index 2ce5acb..69c16bb 100644 --- a/arch/sparc/prom/console_32.c +++ b/arch/sparc/prom/console_32.c @@ -19,27 +19,27 @@ extern void restore_current(void); /* Non blocking get character from console input device, returns -1 * if no input was taken. This can be used for polling. */ -static int prom_nbgetchar(void) +static int prom_nbgetchar(char *buf) { - static char inc; - int i = -1; unsigned long flags; + int i = -1; spin_lock_irqsave(&prom_lock, flags); switch(prom_vers) { case PROM_V0: i = (*(romvec->pv_nbgetchar))(); + if (i != -1) { + *buf = i; + i = 0; + } break; case PROM_V2: case PROM_V3: - if( (*(romvec->pv_v2devops).v2_dev_read)(*romvec->pv_v2bootargs.fd_stdin , &inc, 0x1) == 1) { - i = inc; - } else { - i = -1; - } + if ((*(romvec->pv_v2devops).v2_dev_read)(*romvec->pv_v2bootargs.fd_stdin, + buf, 0x1) == 1) + i = 0; break; default: - i = -1; break; }; restore_current(); @@ -50,27 +50,23 @@ static int prom_nbgetchar(void) /* Non blocking put character to console device, returns -1 if * unsuccessful. */ -static int prom_nbputchar(char c) +static int prom_nbputchar(const char *buf) { - static char outc; unsigned long flags; int i = -1; spin_lock_irqsave(&prom_lock, flags); switch(prom_vers) { case PROM_V0: - i = (*(romvec->pv_nbputchar))(c); + i = (*(romvec->pv_nbputchar))(*buf); break; case PROM_V2: case PROM_V3: - outc = c; - if( (*(romvec->pv_v2devops).v2_dev_write)(*romvec->pv_v2bootargs.fd_stdout, &outc, 0x1) == 1) + if ((*(romvec->pv_v2devops).v2_dev_write)(*romvec->pv_v2bootargs.fd_stdout, + buf, 0x1) == 1) i = 0; - else - i = -1; break; default: - i = -1; break; }; restore_current(); @@ -79,17 +75,21 @@ static int prom_nbputchar(char c) } /* Blocking version of get character routine above. */ -char -prom_getchar(void) +void prom_getchar(char *buf) { - int character; - while((character = prom_nbgetchar()) == -1) ; - return (char) character; + while (1) { + int err = prom_nbgetchar(buf); + if (!err) + break; + } } /* Blocking version of put character routine above. */ -void -prom_putchar(char c) +void prom_putchar(const char *buf) { - while(prom_nbputchar(c) == -1) ; + while (1) { + int err = prom_nbputchar(buf); + if (!err) + break; + } } diff --git a/arch/sparc/prom/console_64.c b/arch/sparc/prom/console_64.c index 33a8b27..a9a5754 100644 --- a/arch/sparc/prom/console_64.c +++ b/arch/sparc/prom/console_64.c @@ -18,41 +18,37 @@ extern int prom_stdin, prom_stdout; /* Non blocking get character from console input device, returns -1 * if no input was taken. This can be used for polling. */ -static int prom_nbgetchar(void) +static int prom_nbgetchar(char *buf) { unsigned long args[7]; - char inc; args[0] = (unsigned long) "read"; args[1] = 3; args[2] = 1; args[3] = (unsigned int) prom_stdin; - args[4] = (unsigned long) &inc; + args[4] = (unsigned long) buf; args[5] = 1; args[6] = (unsigned long) -1; p1275_cmd_direct(args); if (args[6] == 1) - return inc; + return 0; return -1; } /* Non blocking put character to console device, returns -1 if * unsuccessful. */ -static int prom_nbputchar(char c) +static int prom_nbputchar(const char *buf) { unsigned long args[7]; - char outc; - - outc = c; args[0] = (unsigned long) "write"; args[1] = 3; args[2] = 1; args[3] = (unsigned int) prom_stdout; - args[4] = (unsigned long) &outc; + args[4] = (unsigned long) buf; args[5] = 1; args[6] = (unsigned long) -1; @@ -65,17 +61,21 @@ static int prom_nbputchar(char c) } /* Blocking version of get character routine above. */ -char -prom_getchar(void) +void prom_getchar(char *buf) { - int character; - while((character = prom_nbgetchar()) == -1) ; - return (char) character; + while (1) { + int err = prom_nbgetchar(buf); + if (!err) + break; + } } /* Blocking version of put character routine above. */ -void -prom_putchar(char c) +void prom_putchar(const char *buf) { - prom_nbputchar(c); + while (1) { + int err = prom_nbputchar(buf); + if (!err) + break; + } } diff --git a/arch/sparc/prom/printf.c b/arch/sparc/prom/printf.c index ca86926..2403197 100644 --- a/arch/sparc/prom/printf.c +++ b/arch/sparc/prom/printf.c @@ -23,13 +23,14 @@ static char ppbuf[1024]; void notrace prom_write(const char *buf, unsigned int n) { - char ch; - - while (n != 0) { - --n; - if ((ch = *buf++) == '\n') - prom_putchar('\r'); - prom_putchar(ch); + while (n-- != 0) { + char ch = *buf; + if (ch == '\n') { + char tmp = '\r'; + prom_putchar(&tmp); + } + prom_putchar(buf); + buf++; } } -- cgit v0.10.2 From 12c7a35ee6a1c605e740733f2cbd5b5079f09f0f Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 30 Nov 2010 14:53:05 -0800 Subject: sparc: Delete prom_*getchar(). Completely unused. Signed-off-by: David S. Miller diff --git a/arch/sparc/include/asm/oplib_32.h b/arch/sparc/include/asm/oplib_32.h index 4c25392..40bc9ef 100644 --- a/arch/sparc/include/asm/oplib_32.h +++ b/arch/sparc/include/asm/oplib_32.h @@ -102,11 +102,6 @@ extern int prom_getrev(void); /* Get the prom firmware revision. */ extern int prom_getprev(void); -/* Character operations to/from the console.... */ - -/* Blocking get character from console. */ -extern void prom_getchar(char *buf); - /* Blocking put character to console. */ extern void prom_putchar(const char *buf); diff --git a/arch/sparc/include/asm/oplib_64.h b/arch/sparc/include/asm/oplib_64.h index 384e558..d461373 100644 --- a/arch/sparc/include/asm/oplib_64.h +++ b/arch/sparc/include/asm/oplib_64.h @@ -94,11 +94,6 @@ extern void prom_halt_power_off(void) __attribute__ ((noreturn)); */ extern unsigned char prom_get_idprom(char *idp_buffer, int idpbuf_size); -/* Character operations to/from the console.... */ - -/* Blocking get character from console. */ -extern void prom_getchar(char *buf); - /* Blocking put character to console. */ extern void prom_putchar(const char *buf); diff --git a/arch/sparc/prom/console_32.c b/arch/sparc/prom/console_32.c index 69c16bb..157019e 100644 --- a/arch/sparc/prom/console_32.c +++ b/arch/sparc/prom/console_32.c @@ -16,37 +16,6 @@ extern void restore_current(void); -/* Non blocking get character from console input device, returns -1 - * if no input was taken. This can be used for polling. - */ -static int prom_nbgetchar(char *buf) -{ - unsigned long flags; - int i = -1; - - spin_lock_irqsave(&prom_lock, flags); - switch(prom_vers) { - case PROM_V0: - i = (*(romvec->pv_nbgetchar))(); - if (i != -1) { - *buf = i; - i = 0; - } - break; - case PROM_V2: - case PROM_V3: - if ((*(romvec->pv_v2devops).v2_dev_read)(*romvec->pv_v2bootargs.fd_stdin, - buf, 0x1) == 1) - i = 0; - break; - default: - break; - }; - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); - return i; /* Ugh, we could spin forever on unsupported proms ;( */ -} - /* Non blocking put character to console device, returns -1 if * unsuccessful. */ @@ -74,16 +43,6 @@ static int prom_nbputchar(const char *buf) return i; /* Ugh, we could spin forever on unsupported proms ;( */ } -/* Blocking version of get character routine above. */ -void prom_getchar(char *buf) -{ - while (1) { - int err = prom_nbgetchar(buf); - if (!err) - break; - } -} - /* Blocking version of put character routine above. */ void prom_putchar(const char *buf) { diff --git a/arch/sparc/prom/console_64.c b/arch/sparc/prom/console_64.c index a9a5754..0da88d1 100644 --- a/arch/sparc/prom/console_64.c +++ b/arch/sparc/prom/console_64.c @@ -15,28 +15,6 @@ extern int prom_stdin, prom_stdout; -/* Non blocking get character from console input device, returns -1 - * if no input was taken. This can be used for polling. - */ -static int prom_nbgetchar(char *buf) -{ - unsigned long args[7]; - - args[0] = (unsigned long) "read"; - args[1] = 3; - args[2] = 1; - args[3] = (unsigned int) prom_stdin; - args[4] = (unsigned long) buf; - args[5] = 1; - args[6] = (unsigned long) -1; - - p1275_cmd_direct(args); - - if (args[6] == 1) - return 0; - return -1; -} - /* Non blocking put character to console device, returns -1 if * unsuccessful. */ @@ -60,16 +38,6 @@ static int prom_nbputchar(const char *buf) return -1; } -/* Blocking version of get character routine above. */ -void prom_getchar(char *buf) -{ - while (1) { - int err = prom_nbgetchar(buf); - if (!err) - break; - } -} - /* Blocking version of put character routine above. */ void prom_putchar(const char *buf) { -- cgit v0.10.2 From 595a251c0740785fd3c0d2156d78578c7479811e Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 30 Nov 2010 20:15:58 -0800 Subject: sparc: Write to prom console using indirect buffer. sparc64 systems have a restriction in that passing in buffer addressses above 4GB to prom calls is not reliable. We end up violating this when we do prom console writes, because we use an on-stack buffer to translate '\n' into '\r\n'. So instead, do this translation into an intermediate buffer, which is in the kernel image and thus below 4GB, then pass that to the PROM console write calls. On the 32-bit side we don't have to deal with any of these issues, so the new prom_console_write_buf() uses the existing prom_nbputchar() implementation. However we can now mark those routines static. Since the 64-bit side completely uses new code we can delete the putchar bits as they are now completely unused. Signed-off-by: David S. Miller diff --git a/arch/sparc/include/asm/oplib_32.h b/arch/sparc/include/asm/oplib_32.h index 40bc9ef..9e5c640 100644 --- a/arch/sparc/include/asm/oplib_32.h +++ b/arch/sparc/include/asm/oplib_32.h @@ -102,8 +102,8 @@ extern int prom_getrev(void); /* Get the prom firmware revision. */ extern int prom_getprev(void); -/* Blocking put character to console. */ -extern void prom_putchar(const char *buf); +/* Write a buffer of characters to the console. */ +extern void prom_console_write_buf(const char *buf, int len); /* Prom's internal routines, don't use in kernel/boot code. */ extern void prom_printf(const char *fmt, ...); diff --git a/arch/sparc/include/asm/oplib_64.h b/arch/sparc/include/asm/oplib_64.h index d461373..8cd0df3 100644 --- a/arch/sparc/include/asm/oplib_64.h +++ b/arch/sparc/include/asm/oplib_64.h @@ -94,8 +94,8 @@ extern void prom_halt_power_off(void) __attribute__ ((noreturn)); */ extern unsigned char prom_get_idprom(char *idp_buffer, int idpbuf_size); -/* Blocking put character to console. */ -extern void prom_putchar(const char *buf); +/* Write a buffer of characters to the console. */ +extern void prom_console_write_buf(const char *buf, int len); /* Prom's internal routines, don't use in kernel/boot code. */ extern void prom_printf(const char *fmt, ...); diff --git a/arch/sparc/prom/console_32.c b/arch/sparc/prom/console_32.c index 157019e..4886310 100644 --- a/arch/sparc/prom/console_32.c +++ b/arch/sparc/prom/console_32.c @@ -43,12 +43,14 @@ static int prom_nbputchar(const char *buf) return i; /* Ugh, we could spin forever on unsupported proms ;( */ } -/* Blocking version of put character routine above. */ -void prom_putchar(const char *buf) +void prom_console_write_buf(const char *buf, int len) { - while (1) { - int err = prom_nbputchar(buf); - if (!err) - break; + while (len) { + int n = prom_nbputchar(buf); + if (n) + continue; + len--; + buf++; } } + diff --git a/arch/sparc/prom/console_64.c b/arch/sparc/prom/console_64.c index 0da88d1..ed39e75 100644 --- a/arch/sparc/prom/console_64.c +++ b/arch/sparc/prom/console_64.c @@ -15,35 +15,34 @@ extern int prom_stdin, prom_stdout; -/* Non blocking put character to console device, returns -1 if - * unsuccessful. - */ -static int prom_nbputchar(const char *buf) +static int __prom_console_write_buf(const char *buf, int len) { unsigned long args[7]; + int ret; args[0] = (unsigned long) "write"; args[1] = 3; args[2] = 1; args[3] = (unsigned int) prom_stdout; args[4] = (unsigned long) buf; - args[5] = 1; + args[5] = (unsigned int) len; args[6] = (unsigned long) -1; p1275_cmd_direct(args); - if (args[6] == 1) - return 0; - else + ret = (int) args[6]; + if (ret < 0) return -1; + return ret; } -/* Blocking version of put character routine above. */ -void prom_putchar(const char *buf) +void prom_console_write_buf(const char *buf, int len) { - while (1) { - int err = prom_nbputchar(buf); - if (!err) - break; + while (len) { + int n = __prom_console_write_buf(buf, len); + if (n < 0) + continue; + len -= n; + buf += len; } } diff --git a/arch/sparc/prom/printf.c b/arch/sparc/prom/printf.c index 2403197..d9682f0 100644 --- a/arch/sparc/prom/printf.c +++ b/arch/sparc/prom/printf.c @@ -15,23 +15,45 @@ #include #include +#include #include #include +#define CONSOLE_WRITE_BUF_SIZE 1024 + static char ppbuf[1024]; +static char console_write_buf[CONSOLE_WRITE_BUF_SIZE]; +static DEFINE_RAW_SPINLOCK(console_write_lock); void notrace prom_write(const char *buf, unsigned int n) { + unsigned int dest_len; + unsigned long flags; + char *dest; + + dest = console_write_buf; + raw_spin_lock_irqsave(&console_write_lock, flags); + + dest_len = 0; while (n-- != 0) { - char ch = *buf; + char ch = *buf++; if (ch == '\n') { - char tmp = '\r'; - prom_putchar(&tmp); + *dest++ = '\r'; + dest_len++; + } + *dest++ = ch; + dest_len++; + if (dest_len >= CONSOLE_WRITE_BUF_SIZE - 1) { + prom_console_write_buf(console_write_buf, dest_len); + dest = console_write_buf; + dest_len = 0; } - prom_putchar(buf); - buf++; } + if (dest_len) + prom_console_write_buf(console_write_buf, dest_len); + + raw_spin_unlock_irqrestore(&console_write_lock, flags); } void notrace prom_printf(const char *fmt, ...) -- cgit v0.10.2 From 0417596f66dd6621f4fd46563c7c56a95311dbe8 Mon Sep 17 00:00:00 2001 From: Bastien Nocera Date: Mon, 29 Nov 2010 23:33:05 -0800 Subject: Input: add keycodes for touchpad on/off keys Some laptops will have a "touchpad toggle" soft button, which expects user-space to turn off the touchpad themselves, some other devices will do this in hardware, but send key events telling us that the touchpad has been turned off/on. KEY_TOUCHPAD_ON/KEY_TOUCHPAD_OFF will be used by user-space to show a popup with the status of the touchpad. Signed-off-by: Bastien Nocera Signed-off-by: Dmitry Torokhov diff --git a/include/linux/input.h b/include/linux/input.h index 6ef4446..a50046f 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -624,6 +624,10 @@ struct input_keymap_entry { #define KEY_CAMERA_FOCUS 0x210 #define KEY_WPS_BUTTON 0x211 /* WiFi Protected Setup key */ +#define KEY_TOUCHPAD_TOGGLE 0x212 /* Request switch touchpad on or off */ +#define KEY_TOUCHPAD_ON 0x213 +#define KEY_TOUCHPAD_OFF 0x214 + #define BTN_TRIGGER_HAPPY 0x2c0 #define BTN_TRIGGER_HAPPY1 0x2c0 #define BTN_TRIGGER_HAPPY2 0x2c1 -- cgit v0.10.2 From 86b17f76f462db460d6d916e105a4c44cb353e36 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Mon, 29 Nov 2010 23:33:04 -0800 Subject: Input: document struct input_absinfo Add documentation for struct input_absinfo that is used in EVIOCGABS and EVIOCSABS ioctl and specify units of measure used for reporting resolution for an axis. Acked-by: Henrik Rydberg Signed-off-by: Dmitry Torokhov diff --git a/include/linux/input.h b/include/linux/input.h index a50046f..a8af21d 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -47,6 +47,25 @@ struct input_id { __u16 version; }; +/** + * struct input_absinfo - used by EVIOCGABS/EVIOCSABS ioctls + * @value: latest reported value for the axis. + * @minimum: specifies minimum value for the axis. + * @maximum: specifies maximum value for the axis. + * @fuzz: specifies fuzz value that is used to filter noise from + * the event stream. + * @flat: values that are within this value will be discarded by + * joydev interface and reported as 0 instead. + * @resolution: specifies resolution for the values reported for + * the axis. + * + * Note that input core does not clamp reported values to the + * [minimum, maximum] limits, such task is left to userspace. + * + * Resolution for main axes (ABS_X, ABS_Y, ABS_Z) is reported in + * units per millimeter (units/mm), resolution for rotational axes + * (ABS_RX, ABS_RY, ABS_RZ) is reported in units per radian. + */ struct input_absinfo { __s32 value; __s32 minimum; @@ -1134,7 +1153,7 @@ struct input_mt_slot { * of tracked contacts * @mtsize: number of MT slots the device uses * @slot: MT slot currently being transmitted - * @absinfo: array of &struct absinfo elements holding information + * @absinfo: array of &struct input_absinfo elements holding information * about absolute axes (current value, min, max, flat, fuzz, * resolution) * @key: reflects current state of device's keys/buttons -- cgit v0.10.2 From 25c9170ed64a6551beefe9315882f754e14486f4 Mon Sep 17 00:00:00 2001 From: Kenji Kaneshige Date: Tue, 30 Nov 2010 17:36:08 +0900 Subject: genirq: Fix incorrect proc spurious output Since commit a1afb637(switch /proc/irq/*/spurious to seq_file) all /proc/irq/XX/spurious files show the information of irq 0. Current irq_spurious_proc_open() passes on NULL as the 3rd argument, which is used as an IRQ number in irq_spurious_proc_show(), to the single_open(). Because of this, all the /proc/irq/XX/spurious file shows IRQ 0 information regardless of the IRQ number. To fix the problem, irq_spurious_proc_open() must pass on the appropreate data (IRQ number) to single_open(). Signed-off-by: Kenji Kaneshige Reviewed-by: Yong Zhang LKML-Reference: <4CF4B778.90604@jp.fujitsu.com> Cc: stable@kernel.org [2.6.33+] Signed-off-by: Thomas Gleixner diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c index 01b1d3a..6c8a2a9 100644 --- a/kernel/irq/proc.c +++ b/kernel/irq/proc.c @@ -214,7 +214,7 @@ static int irq_spurious_proc_show(struct seq_file *m, void *v) static int irq_spurious_proc_open(struct inode *inode, struct file *file) { - return single_open(file, irq_spurious_proc_show, NULL); + return single_open(file, irq_spurious_proc_show, PDE(inode)->data); } static const struct file_operations irq_spurious_proc_fops = { -- cgit v0.10.2 From a318e6b1a04c9d8882712508eb9c8a061796c06b Mon Sep 17 00:00:00 2001 From: David Foley Date: Tue, 30 Nov 2010 23:45:46 -0800 Subject: Input: wacom - add IDs for two new Bamboo PTs Add two new Bamboo Pen & Touch models: Bamboo Comic Medium (CTH661/S1; Product ID = 0xd8) Bamboo P & T Special Edition Small (CTH461/L; Product ID = 0xdA) Tested-by: IRIE Shinsuke Tested-by: Andrea Cadeddu Signed-off-by: David Foley Reviewed-by: Ping Cheng Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index b3252ef..db747e4 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -1436,6 +1436,10 @@ static struct wacom_features wacom_features_0xD2 = { "Wacom Bamboo Craft", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT }; static struct wacom_features wacom_features_0xD3 = { "Wacom Bamboo 2FG 6x8", WACOM_PKGLEN_BBFUN, 21648, 13530, 1023, 63, BAMBOO_PT }; +static struct wacom_features wacom_features_0xD8 = + { "Wacom Bamboo Comic 2FG", WACOM_PKGLEN_BBFUN, 21648, 13530, 1023, 63, BAMBOO_PT }; +static struct wacom_features wacom_features_0xDA = + { "Wacom Bamboo 2FG 4x5 SE", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT }; #define USB_DEVICE_WACOM(prod) \ USB_DEVICE(USB_VENDOR_ID_WACOM, prod), \ @@ -1504,6 +1508,8 @@ const struct usb_device_id wacom_ids[] = { { USB_DEVICE_WACOM(0xD1) }, { USB_DEVICE_WACOM(0xD2) }, { USB_DEVICE_WACOM(0xD3) }, + { USB_DEVICE_WACOM(0xD8) }, + { USB_DEVICE_WACOM(0xDA) }, { USB_DEVICE_WACOM(0xF0) }, { USB_DEVICE_WACOM(0xCC) }, { USB_DEVICE_WACOM(0x90) }, -- cgit v0.10.2 From 3bfa321e662edf90fb8123a02c987c2965fa50bb Mon Sep 17 00:00:00 2001 From: Yan Li Date: Tue, 30 Nov 2010 23:51:03 -0800 Subject: Input: synaptics - fix handling of 2-button ClickPads Lenovo S10-3t's ClickPad is a 2-button ClickPad that reports BTN_LEFT and BTN_RIGHT as normal touchpad, unlike the 1-button ClickPad used in HP mini 210 that reports solely BTN_MIDDLE. In 0xc0-cap response, the 1-button ClickPad has the 20-bit set while 2-button ClickPad has the 8-bit set. This patch makes the kernel only handle 1-button ClickPad specially, and treat 2-button ClickPad in the same fashion as regular touchpads. This fixes kernel bug #18122 and MeeGo bug #4807. Signed-off-by: Yan Li Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/mouse/synaptics.h b/drivers/input/mouse/synaptics.h index 613a365..0aefaa8 100644 --- a/drivers/input/mouse/synaptics.h +++ b/drivers/input/mouse/synaptics.h @@ -51,7 +51,8 @@ #define SYN_EXT_CAP_REQUESTS(c) (((c) & 0x700000) >> 20) #define SYN_CAP_MULTI_BUTTON_NO(ec) (((ec) & 0x00f000) >> 12) #define SYN_CAP_PRODUCT_ID(ec) (((ec) & 0xff0000) >> 16) -#define SYN_CAP_CLICKPAD(ex0c) ((ex0c) & 0x100100) +#define SYN_CAP_CLICKPAD(ex0c) ((ex0c) & 0x100000) /* 1-button ClickPad */ +#define SYN_CAP_CLICKPAD2BTN(ex0c) ((ex0c) & 0x000100) /* 2-button ClickPad */ #define SYN_CAP_MAX_DIMENSIONS(ex0c) ((ex0c) & 0x020000) /* synaptics modes query bits */ -- cgit v0.10.2 From 398812159e328478ae49b4bd01f0d71efea96c39 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 1 Dec 2010 10:08:01 +0100 Subject: [S390] nohz/s390: fix arch_needs_cpu() return value on offline cpus This fixes the same problem as described in the patch "nohz: fix printk_needs_cpu() return value on offline cpus" for the arch_needs_cpu() primitive: arch_needs_cpu() may return 1 if called on offline cpus. When a cpu gets offlined it schedules the idle process which, before killing its own cpu, will call tick_nohz_stop_sched_tick(). That function in turn will call arch_needs_cpu() in order to check if the local tick can be disabled. On offline cpus this function should naturally return 0 since regardless if the tick gets disabled or not the cpu will be dead short after. That is besides the fact that __cpu_disable() should already have made sure that no interrupts on the offlined cpu will be delivered anyway. In this case it prevents tick_nohz_stop_sched_tick() to call select_nohz_load_balancer(). No idea if that really is a problem. However what made me debug this is that on 2.6.32 the function get_nohz_load_balancer() is used within __mod_timer() to select a cpu on which a timer gets enqueued. If arch_needs_cpu() returns 1 then the nohz_load_balancer cpu doesn't get updated when a cpu gets offlined. It may contain the cpu number of an offline cpu. In turn timers get enqueued on an offline cpu and not very surprisingly they never expire and cause system hangs. This has been observed 2.6.32 kernels. On current kernels __mod_timer() uses get_nohz_timer_target() which doesn't have that problem. However there might be other problems because of the too early exit tick_nohz_stop_sched_tick() in case a cpu goes offline. This specific bug was indrocuded with 3c5d92a0 "nohz: Introduce arch_needs_cpu". In this case a cpu hotplug notifier is used to fix the issue in order to keep the normal/fast path small. All we need to do is to clear the condition that makes arch_needs_cpu() return 1 since it is just a performance improvement which is supposed to keep the local tick running for a short period if a cpu goes idle. Nothing special needs to be done except for clearing the condition. Cc: stable@kernel.org Acked-by: Peter Zijlstra Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c index 56c8687..7eff9b7 100644 --- a/arch/s390/kernel/vtime.c +++ b/arch/s390/kernel/vtime.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include @@ -566,6 +567,23 @@ void init_cpu_vtimer(void) __ctl_set_bit(0,10); } +static int __cpuinit s390_nohz_notify(struct notifier_block *self, + unsigned long action, void *hcpu) +{ + struct s390_idle_data *idle; + long cpu = (long) hcpu; + + idle = &per_cpu(s390_idle, cpu); + switch (action) { + case CPU_DYING: + case CPU_DYING_FROZEN: + idle->nohz_delay = 0; + default: + break; + } + return NOTIFY_OK; +} + void __init vtime_init(void) { /* request the cpu timer external interrupt */ @@ -574,5 +592,6 @@ void __init vtime_init(void) /* Enable cpu timer interrupts on the boot cpu. */ init_cpu_vtimer(); + cpu_notifier(s390_nohz_notify, 0); } -- cgit v0.10.2 From 8d7bfb4a891d606d52e1a99cf7231b4417b935dc Mon Sep 17 00:00:00 2001 From: Sebastian Ott Date: Wed, 1 Dec 2010 10:08:02 +0100 Subject: [S390] css: fix rsid evaluation for 2nd crw Use correct bit positions of rsid field. Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c index a5050e2..825951b 100644 --- a/drivers/s390/cio/css.c +++ b/drivers/s390/cio/css.c @@ -635,7 +635,7 @@ static void css_process_crw(struct crw *crw0, struct crw *crw1, int overflow) init_subchannel_id(&mchk_schid); mchk_schid.sch_no = crw0->rsid; if (crw1) - mchk_schid.ssid = (crw1->rsid >> 8) & 3; + mchk_schid.ssid = (crw1->rsid >> 4) & 3; /* * Since we are always presented with IPI in the CRW, we have to -- cgit v0.10.2 From 0aded708d125a3ff7e5abaea9c2d9c6d7ebbfdcd Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 30 Nov 2010 21:56:32 -0500 Subject: NFS: Ensure we use the correct cookie in nfs_readdir_xdr_filler We need to use the cookie from the previous array entry, not the actual cookie that we are searching for (except for the case of uncached_readdir). Signed-off-by: Trond Myklebust diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index f0a384e..e03537f 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -178,6 +178,7 @@ typedef struct { struct page *page; unsigned long page_index; u64 *dir_cookie; + u64 last_cookie; loff_t current_index; decode_dirent_t decode; @@ -344,6 +345,8 @@ int nfs_readdir_search_array(nfs_readdir_descriptor_t *desc) else status = nfs_readdir_search_for_cookie(array, desc); + if (status == -EAGAIN) + desc->last_cookie = array->last_cookie; nfs_readdir_release_array(desc->page); out: return status; @@ -563,7 +566,7 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page, unsigned int array_size = ARRAY_SIZE(pages); entry.prev_cookie = 0; - entry.cookie = *desc->dir_cookie; + entry.cookie = desc->last_cookie; entry.eof = 0; entry.fh = nfs_alloc_fhandle(); entry.fattr = nfs_alloc_fattr(); @@ -672,8 +675,10 @@ int readdir_search_pagecache(nfs_readdir_descriptor_t *desc) { int res; - if (desc->page_index == 0) + if (desc->page_index == 0) { desc->current_index = 0; + desc->last_cookie = 0; + } while (1) { res = find_cache_page(desc); if (res != -EAGAIN) @@ -764,6 +769,7 @@ int uncached_readdir(nfs_readdir_descriptor_t *desc, void *dirent, } desc->page_index = 0; + desc->last_cookie = *desc->dir_cookie; desc->page = page; status = nfs_readdir_xdr_to_array(desc, page, inode); -- cgit v0.10.2 From 8ed9e0e1b602a0bcdc3bef52ec05fdab5b484341 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Wed, 1 Dec 2010 09:19:45 -0800 Subject: Input: turbografx - fix reference counting The ref-count of parport gained from parport_find_number() was not released in normal path. Signed-off-by: Namhyung Kim Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/joystick/turbografx.c b/drivers/input/joystick/turbografx.c index d53b9e9..27b6a3c 100644 --- a/drivers/input/joystick/turbografx.c +++ b/drivers/input/joystick/turbografx.c @@ -245,6 +245,7 @@ static struct tgfx __init *tgfx_probe(int parport, int *n_buttons, int n_devs) goto err_free_tgfx; } + parport_put_port(pp); return tgfx; err_free_dev: -- cgit v0.10.2 From 61faddf661a65a179751dc9fd209cb694d9a28af Mon Sep 17 00:00:00 2001 From: Stefan Seyfried Date: Tue, 30 Nov 2010 21:49:08 +0100 Subject: Bluetooth: Fix log spamming in btusb due to autosuspend If a device is autosuspended an inability to resubmit URBs is to be expected. Check the error code and only log real errors. (Now that autosuspend is default enabled for btusb, those log messages were happening all the time e.g. with a BT mouse) Signed-off-by: Stefan Seyfried Signed-off-by: Oliver Neukum Acked-by: Marcel Holtmann Signed-off-by: Gustavo F. Padovan diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index ab3894f..d323c1a 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -239,7 +239,8 @@ static void btusb_intr_complete(struct urb *urb) err = usb_submit_urb(urb, GFP_ATOMIC); if (err < 0) { - BT_ERR("%s urb %p failed to resubmit (%d)", + if (err != -EPERM) + BT_ERR("%s urb %p failed to resubmit (%d)", hdev->name, urb, -err); usb_unanchor_urb(urb); } @@ -323,7 +324,8 @@ static void btusb_bulk_complete(struct urb *urb) err = usb_submit_urb(urb, GFP_ATOMIC); if (err < 0) { - BT_ERR("%s urb %p failed to resubmit (%d)", + if (err != -EPERM) + BT_ERR("%s urb %p failed to resubmit (%d)", hdev->name, urb, -err); usb_unanchor_urb(urb); } @@ -412,7 +414,8 @@ static void btusb_isoc_complete(struct urb *urb) err = usb_submit_urb(urb, GFP_ATOMIC); if (err < 0) { - BT_ERR("%s urb %p failed to resubmit (%d)", + if (err != -EPERM) + BT_ERR("%s urb %p failed to resubmit (%d)", hdev->name, urb, -err); usb_unanchor_urb(urb); } -- cgit v0.10.2 From be93112accb42c5586a459683d71975cc70673ca Mon Sep 17 00:00:00 2001 From: Bala Shanmugam Date: Fri, 26 Nov 2010 17:35:46 +0530 Subject: Bluetooth: Add new PID for Atheros 3011 Atheros 3011 has small sflash firmware and needs to be blacklisted in transport driver to load actual firmware in DFU driver. Signed-off-by: Bala Shanmugam Acked-by: Marcel Holtmann Signed-off-by: Gustavo F. Padovan diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c index 128cae4..949ed09 100644 --- a/drivers/bluetooth/ath3k.c +++ b/drivers/bluetooth/ath3k.c @@ -35,6 +35,10 @@ static struct usb_device_id ath3k_table[] = { /* Atheros AR3011 */ { USB_DEVICE(0x0CF3, 0x3000) }, + + /* Atheros AR3011 with sflash firmware*/ + { USB_DEVICE(0x0CF3, 0x3002) }, + { } /* Terminating entry */ }; diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index d323c1a..1da773f8 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -99,6 +99,9 @@ static struct usb_device_id blacklist_table[] = { /* Broadcom BCM2033 without firmware */ { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, + /* Atheros 3011 with sflash firmware */ + { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, + /* Broadcom BCM2035 */ { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, -- cgit v0.10.2 From 381601e5bbae78d7c18d946fe874a63957edea13 Mon Sep 17 00:00:00 2001 From: Anders Franzen Date: Wed, 24 Nov 2010 05:47:18 +0000 Subject: Make the ip6_tunnel reflect the true mtu. The ip6_tunnel always assumes it consumes 40 bytes (ip6 hdr) of the mtu of the underlaying device. So for a normal ethernet bearer, the mtu of the ip6_tunnel is 1460. However, when creating a tunnel the encap limit option is enabled by default, and it consumes 8 bytes more, so the true mtu shall be 1452. I dont really know if this breaks some statement in some RFC, so this is a request for comments. Signed-off-by: Anders Franzen Signed-off-by: David S. Miller diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index 2a59610..70e891a 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -1175,6 +1175,8 @@ static void ip6_tnl_link_config(struct ip6_tnl *t) sizeof (struct ipv6hdr); dev->mtu = rt->rt6i_dev->mtu - sizeof (struct ipv6hdr); + if (!(t->parms.flags & IP6_TNL_F_IGN_ENCAP_LIMIT)) + dev->mtu-=8; if (dev->mtu < IPV6_MIN_MTU) dev->mtu = IPV6_MIN_MTU; @@ -1363,12 +1365,17 @@ static const struct net_device_ops ip6_tnl_netdev_ops = { static void ip6_tnl_dev_setup(struct net_device *dev) { + struct ip6_tnl *t; + dev->netdev_ops = &ip6_tnl_netdev_ops; dev->destructor = ip6_dev_free; dev->type = ARPHRD_TUNNEL6; dev->hard_header_len = LL_MAX_HEADER + sizeof (struct ipv6hdr); dev->mtu = ETH_DATA_LEN - sizeof (struct ipv6hdr); + t = netdev_priv(dev); + if (!(t->parms.flags & IP6_TNL_F_IGN_ENCAP_LIMIT)) + dev->mtu-=8; dev->flags |= IFF_NOARP; dev->addr_len = sizeof(struct in6_addr); dev->features |= NETIF_F_NETNS_LOCAL; -- cgit v0.10.2 From 6c08af030212d1a34593397bb01f262ff31c3629 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Sat, 27 Nov 2010 06:47:43 +0000 Subject: b44: fix workarround for wap54g10 The code for the b44_wap54g10_workaround was never included, because the config option was wrong. The nvram_get function was never in mainline kernel, only in external OpenWrt patches. The code should be compiled in when CONFIG_BCM47XX is selected and not when CONFIG_SSB_DRIVER_MIPS is selected, because nvram_getenv is only available on bcm47xx platforms and now in the mainline kernel code. Using an include is better than a second function declaration, to fix this when the function signature changes. Signed-off-by: Hauke Mehrtens Signed-off-by: David S. Miller diff --git a/drivers/net/b44.c b/drivers/net/b44.c index c6e8631..2e2b762 100644 --- a/drivers/net/b44.c +++ b/drivers/net/b44.c @@ -381,11 +381,11 @@ static void b44_set_flow_ctrl(struct b44 *bp, u32 local, u32 remote) __b44_set_flow_ctrl(bp, pause_enab); } -#ifdef SSB_DRIVER_MIPS -extern char *nvram_get(char *name); +#ifdef CONFIG_BCM47XX +#include static void b44_wap54g10_workaround(struct b44 *bp) { - const char *str; + char buf[20]; u32 val; int err; @@ -394,10 +394,9 @@ static void b44_wap54g10_workaround(struct b44 *bp) * see https://dev.openwrt.org/ticket/146 * check and reset bit "isolate" */ - str = nvram_get("boardnum"); - if (!str) + if (nvram_getenv("boardnum", buf, sizeof(buf)) < 0) return; - if (simple_strtoul(str, NULL, 0) == 2) { + if (simple_strtoul(buf, NULL, 0) == 2) { err = __b44_readphy(bp, 0, MII_BMCR, &val); if (err) goto error; -- cgit v0.10.2 From d13a2cb63d06fe2e3067c7d40f9a5946abd614c8 Mon Sep 17 00:00:00 2001 From: David Strand Date: Wed, 1 Dec 2010 11:43:08 -0800 Subject: bonding: check for assigned mac before adopting the slaves mac address Restore the check for an unassigned mac address before adopting the first slaves as it's own. The change in behavior was introduced by: commit c20811a79e671a6a1fe86a8c1afe04aca8a7f085 Author: Jiri Pirko bonding: move dev_addr cpy to bond_enslave Signed-off-by: David Strand 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 71a1697..2fee00a 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1576,7 +1576,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) /* If this is the first slave, then we need to set the master's hardware * address to be the same as the slave's. */ - if (bond->slave_cnt == 0) + if (is_zero_ether_addr(bond->dev->dev_addr)) memcpy(bond->dev->dev_addr, slave_dev->dev_addr, slave_dev->addr_len); -- cgit v0.10.2 From 6dcdd1b3694a4fa2b85167a9c860c7613a7553c7 Mon Sep 17 00:00:00 2001 From: David McCullough Date: Mon, 29 Nov 2010 19:32:34 +0000 Subject: net/ipv6/sit.c: return unhandled skb to tunnel4_rcv I found a problem using an IPv6 over IPv4 tunnel. When CONFIG_IPV6_SIT was enabled, the packets would be rejected as net/ipv6/sit.c was catching all IPPROTO_IPV6 packets and returning an ICMP port unreachable error. I think this patch fixes the problem cleanly. I believe the code in net/ipv4/tunnel4.c:tunnel4_rcv takes care of it properly if none of the handlers claim the skb. Signed-off-by: David McCullough Acked-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c index d6bfaec..8c4d00c 100644 --- a/net/ipv6/sit.c +++ b/net/ipv6/sit.c @@ -606,8 +606,9 @@ static int ipip6_rcv(struct sk_buff *skb) return 0; } - icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0); + /* no tunnel matched, let upstream know, ipsec may handle it */ rcu_read_unlock(); + return 1; out: kfree_skb(skb); return 0; -- cgit v0.10.2 From 212967c69afd348342548272aedbe4d46a9325d6 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 25 Nov 2010 00:02:36 +0100 Subject: ACPI / PM: Check device state before refcounting power resources Commit 3e384ee6c687cb397581ee8f9440fc8220cfac80 (ACPI / PM: Fix reference counting of power resources) introduced a regression by causing fan power resources to be turned on and reference counted unnecessarily during resume, so on some boxes fans are always on after resume. Fix the problem by checking if the current device state is different from the new state before reference counting and turning on power resources in acpi_power_transition(). Addresses https://bugzilla.kernel.org/show_bug.cgi?id=22932 . Signed-off-by: Rafael J. Wysocki Reported-and-tested-by: Maciej Rutecki Signed-off-by: Len Brown diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index 67dedee..792a830 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -465,10 +465,12 @@ int acpi_power_transition(struct acpi_device *device, int state) struct acpi_handle_list *tl = NULL; /* Target Resources */ int i = 0; - if (!device || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3)) return -EINVAL; + if (device->power.state == state) + return 0; + if ((device->power.state < ACPI_STATE_D0) || (device->power.state > ACPI_STATE_D3)) return -ENODEV; @@ -488,10 +490,6 @@ int acpi_power_transition(struct acpi_device *device, int state) goto end; } - if (device->power.state == state) { - goto end; - } - /* * Then we dereference all power resources used in the current list. */ -- cgit v0.10.2 From 12b3b5afed67e08aa641d30e57df20dab2e33432 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 25 Nov 2010 00:03:32 +0100 Subject: ACPI / PM: Do not refcount power resources that can't be turned on If turning on a power resource fails, do not reference count it, since it cannot be in use in that case. Signed-off-by: Rafael J. Wysocki Signed-off-by: Len Brown diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index 792a830..4c9c2fb 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -213,11 +213,13 @@ static int acpi_power_on(acpi_handle handle) resource->name)); } else { result = __acpi_power_on(resource); + if (result) + resource->ref_count--; } mutex_unlock(&resource->resource_lock); - return 0; + return result; } static int acpi_power_off_device(acpi_handle handle) -- cgit v0.10.2 From 884ea892763d4dfba509743f65961c782c0442db Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Mon, 22 Nov 2010 22:58:06 -0800 Subject: ceph: avoid possible null deref in readdir after dir llseek last may be NULL, but we dereference it in the else branch without checking. Normally it doesn't trigger because last == NULL when fpos == 2, but it could happen on a newly opened dir if the user seeks forward. Reported-by: Dan Carpenter Signed-off-by: Sage Weil diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c index 7d447af..158c700 100644 --- a/fs/ceph/dir.c +++ b/fs/ceph/dir.c @@ -114,8 +114,8 @@ static int __dcache_readdir(struct file *filp, spin_lock(&dcache_lock); /* start at beginning? */ - if (filp->f_pos == 2 || (last && - filp->f_pos < ceph_dentry(last)->offset)) { + if (filp->f_pos == 2 || last == NULL || + filp->f_pos < ceph_dentry(last)->offset) { if (list_empty(&parent->d_subdirs)) goto out_unlock; p = parent->d_subdirs.prev; -- cgit v0.10.2 From 25933abdd8c562182ca6dc9f8c4c2cc8265c3a80 Mon Sep 17 00:00:00 2001 From: Herb Shiu Date: Wed, 1 Dec 2010 14:14:38 -0800 Subject: ceph: Handle file locks in replies from the MDS. Previously the kernel client incorrectly assumed everything was a directory. Signed-off-by: Herb Shiu Acked-by: Greg Farnum Signed-off-by: Sage Weil diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index 098b185..38800ea 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -202,6 +202,38 @@ out_bad: } /* + * parse fcntl F_GETLK results + */ +static int parse_reply_info_filelock(void **p, void *end, + struct ceph_mds_reply_info_parsed *info) +{ + if (*p + sizeof(*info->filelock_reply) > end) + goto bad; + + info->filelock_reply = *p; + *p += sizeof(*info->filelock_reply); + + if (unlikely(*p != end)) + goto bad; + return 0; + +bad: + return -EIO; +} + +/* + * parse extra results + */ +static int parse_reply_info_extra(void **p, void *end, + struct ceph_mds_reply_info_parsed *info) +{ + if (info->head->op == CEPH_MDS_OP_GETFILELOCK) + return parse_reply_info_filelock(p, end, info); + else + return parse_reply_info_dir(p, end, info); +} + +/* * parse entire mds reply */ static int parse_reply_info(struct ceph_msg *msg, @@ -223,10 +255,10 @@ static int parse_reply_info(struct ceph_msg *msg, goto out_bad; } - /* dir content */ + /* extra */ ceph_decode_32_safe(&p, end, len, bad); if (len > 0) { - err = parse_reply_info_dir(&p, p+len, info); + err = parse_reply_info_extra(&p, p+len, info); if (err < 0) goto out_bad; } @@ -2074,7 +2106,7 @@ static void handle_reply(struct ceph_mds_session *session, struct ceph_msg *msg) mutex_lock(&session->s_mutex); if (err < 0) { - pr_err("mdsc_handle_reply got corrupt reply mds%d\n", mds); + pr_err("mdsc_handle_reply got corrupt reply mds%d(tid:%lld)\n", mds, tid); ceph_msg_dump(msg); goto out_err; } @@ -2094,7 +2126,8 @@ static void handle_reply(struct ceph_mds_session *session, struct ceph_msg *msg) mutex_lock(&req->r_fill_mutex); err = ceph_fill_trace(mdsc->fsc->sb, req, req->r_session); if (err == 0) { - if (result == 0 && rinfo->dir_nr) + if (result == 0 && req->r_op != CEPH_MDS_OP_GETFILELOCK && + rinfo->dir_nr) ceph_readdir_prepopulate(req, req->r_session); ceph_unreserve_caps(mdsc, &req->r_caps_reservation); } diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h index 9341fd4..aabe563 100644 --- a/fs/ceph/mds_client.h +++ b/fs/ceph/mds_client.h @@ -42,26 +42,37 @@ struct ceph_mds_reply_info_in { }; /* - * parsed info about an mds reply, including information about the - * target inode and/or its parent directory and dentry, and directory - * contents (for readdir results). + * parsed info about an mds reply, including information about + * either: 1) the target inode and/or its parent directory and dentry, + * and directory contents (for readdir results), or + * 2) the file range lock info (for fcntl F_GETLK results). */ struct ceph_mds_reply_info_parsed { struct ceph_mds_reply_head *head; + /* trace */ struct ceph_mds_reply_info_in diri, targeti; struct ceph_mds_reply_dirfrag *dirfrag; char *dname; u32 dname_len; struct ceph_mds_reply_lease *dlease; - struct ceph_mds_reply_dirfrag *dir_dir; - int dir_nr; - char **dir_dname; - u32 *dir_dname_len; - struct ceph_mds_reply_lease **dir_dlease; - struct ceph_mds_reply_info_in *dir_in; - u8 dir_complete, dir_end; + /* extra */ + union { + /* for fcntl F_GETLK results */ + struct ceph_filelock *filelock_reply; + + /* for readdir results */ + struct { + struct ceph_mds_reply_dirfrag *dir_dir; + int dir_nr; + char **dir_dname; + u32 *dir_dname_len; + struct ceph_mds_reply_lease **dir_dlease; + struct ceph_mds_reply_info_in *dir_in; + u8 dir_complete, dir_end; + }; + }; /* encoded blob describing snapshot contexts for certain operations (e.g., open) */ -- cgit v0.10.2 From 637ae8d547390df75bad42a7e9cb65e625119767 Mon Sep 17 00:00:00 2001 From: Herb Shiu Date: Tue, 23 Nov 2010 13:42:23 -0800 Subject: ceph: pass lock information by struct file_lock instead of as individual params. Signed-off-by: Herb Shiu Acked-by: Greg Farnum Signed-off-by: Sage Weil diff --git a/fs/ceph/locks.c b/fs/ceph/locks.c index 40abde9..7b7ac31 100644 --- a/fs/ceph/locks.c +++ b/fs/ceph/locks.c @@ -11,40 +11,49 @@ * Implement fcntl and flock locking functions. */ static int ceph_lock_message(u8 lock_type, u16 operation, struct file *file, - u64 pid, u64 pid_ns, - int cmd, u64 start, u64 length, u8 wait) + int cmd, u8 wait, struct file_lock *fl) { struct inode *inode = file->f_dentry->d_inode; struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc; struct ceph_mds_request *req; int err; + u64 length = 0; req = ceph_mdsc_create_request(mdsc, operation, USE_AUTH_MDS); if (IS_ERR(req)) return PTR_ERR(req); req->r_inode = igrab(inode); + /* mds requires start and length rather than start and end */ + if (LLONG_MAX == fl->fl_end) + length = 0; + else + length = fl->fl_end - fl->fl_start + 1; + dout("ceph_lock_message: rule: %d, op: %d, pid: %llu, start: %llu, " "length: %llu, wait: %d, type`: %d", (int)lock_type, - (int)operation, pid, start, length, wait, cmd); + (int)operation, (u64)fl->fl_pid, fl->fl_start, + length, wait, fl->fl_type); + req->r_args.filelock_change.rule = lock_type; req->r_args.filelock_change.type = cmd; - req->r_args.filelock_change.pid = cpu_to_le64(pid); + req->r_args.filelock_change.pid = cpu_to_le64((u64)fl->fl_pid); /* This should be adjusted, but I'm not sure if namespaces actually get id numbers*/ req->r_args.filelock_change.pid_namespace = - cpu_to_le64((u64)pid_ns); - req->r_args.filelock_change.start = cpu_to_le64(start); + cpu_to_le64((u64)(unsigned long)fl->fl_nspid); + req->r_args.filelock_change.start = cpu_to_le64(fl->fl_start); req->r_args.filelock_change.length = cpu_to_le64(length); req->r_args.filelock_change.wait = wait; err = ceph_mdsc_do_request(mdsc, inode, req); ceph_mdsc_put_request(req); dout("ceph_lock_message: rule: %d, op: %d, pid: %llu, start: %llu, " - "length: %llu, wait: %d, type`: %d err code %d", (int)lock_type, - (int)operation, pid, start, length, wait, cmd, err); + "length: %llu, wait: %d, type`: %d, err code %d", (int)lock_type, + (int)operation, (u64)fl->fl_pid, fl->fl_start, + length, wait, fl->fl_type, err); return err; } @@ -54,7 +63,6 @@ static int ceph_lock_message(u8 lock_type, u16 operation, struct file *file, */ int ceph_lock(struct file *file, int cmd, struct file_lock *fl) { - u64 length; u8 lock_cmd; int err; u8 wait = 0; @@ -76,16 +84,7 @@ int ceph_lock(struct file *file, int cmd, struct file_lock *fl) else lock_cmd = CEPH_LOCK_UNLOCK; - if (LLONG_MAX == fl->fl_end) - length = 0; - else - length = fl->fl_end - fl->fl_start + 1; - - err = ceph_lock_message(CEPH_LOCK_FCNTL, op, file, - (u64)fl->fl_pid, - (u64)(unsigned long)fl->fl_nspid, - lock_cmd, fl->fl_start, - length, wait); + err = ceph_lock_message(CEPH_LOCK_FCNTL, op, file, lock_cmd, wait, fl); if (!err) { dout("mds locked, locking locally"); err = posix_lock_file(file, fl, NULL); @@ -93,10 +92,7 @@ int ceph_lock(struct file *file, int cmd, struct file_lock *fl) /* undo! This should only happen if the kernel detects * local deadlock. */ ceph_lock_message(CEPH_LOCK_FCNTL, op, file, - (u64)fl->fl_pid, - (u64)(unsigned long)fl->fl_nspid, - CEPH_LOCK_UNLOCK, fl->fl_start, - length, 0); + CEPH_LOCK_UNLOCK, 0, fl); dout("got %d on posix_lock_file, undid lock", err); } } else { @@ -107,7 +103,6 @@ int ceph_lock(struct file *file, int cmd, struct file_lock *fl) int ceph_flock(struct file *file, int cmd, struct file_lock *fl) { - u64 length; u8 lock_cmd; int err; u8 wait = 1; @@ -127,26 +122,15 @@ int ceph_flock(struct file *file, int cmd, struct file_lock *fl) lock_cmd = CEPH_LOCK_EXCL; else lock_cmd = CEPH_LOCK_UNLOCK; - /* mds requires start and length rather than start and end */ - if (LLONG_MAX == fl->fl_end) - length = 0; - else - length = fl->fl_end - fl->fl_start + 1; err = ceph_lock_message(CEPH_LOCK_FLOCK, CEPH_MDS_OP_SETFILELOCK, - file, (u64)fl->fl_pid, - (u64)(unsigned long)fl->fl_nspid, - lock_cmd, fl->fl_start, - length, wait); + file, lock_cmd, wait, fl); if (!err) { err = flock_lock_file_wait(file, fl); if (err) { ceph_lock_message(CEPH_LOCK_FLOCK, CEPH_MDS_OP_SETFILELOCK, - file, (u64)fl->fl_pid, - (u64)(unsigned long)fl->fl_nspid, - CEPH_LOCK_UNLOCK, fl->fl_start, - length, 0); + file, CEPH_LOCK_UNLOCK, 0, fl); dout("got %d on flock_lock_file_wait, undid lock", err); } } else { -- cgit v0.10.2 From a5b10629edfa521071ccdb3b1e0e7fb350a044db Mon Sep 17 00:00:00 2001 From: Herb Shiu Date: Tue, 23 Nov 2010 13:58:29 -0800 Subject: ceph: Behave better when handling file lock replies. Fill in the local lock with response data if appropriate, and don't call posix_lock_file when reading locks. Signed-off-by: Herb Shiu Acked-by: Greg Farnum Signed-off-by: Sage Weil diff --git a/fs/ceph/locks.c b/fs/ceph/locks.c index 7b7ac31..476b329 100644 --- a/fs/ceph/locks.c +++ b/fs/ceph/locks.c @@ -49,6 +49,25 @@ static int ceph_lock_message(u8 lock_type, u16 operation, struct file *file, req->r_args.filelock_change.wait = wait; err = ceph_mdsc_do_request(mdsc, inode, req); + + if ( operation == CEPH_MDS_OP_GETFILELOCK){ + fl->fl_pid = le64_to_cpu(req->r_reply_info.filelock_reply->pid); + if (CEPH_LOCK_SHARED == req->r_reply_info.filelock_reply->type) + fl->fl_type = F_RDLCK; + else if (CEPH_LOCK_EXCL == req->r_reply_info.filelock_reply->type) + fl->fl_type = F_WRLCK; + else + fl->fl_type = F_UNLCK; + + fl->fl_start = le64_to_cpu(req->r_reply_info.filelock_reply->start); + length = le64_to_cpu(req->r_reply_info.filelock_reply->start) + + le64_to_cpu(req->r_reply_info.filelock_reply->length); + if (length >= 1) + fl->fl_end = length -1; + else + fl->fl_end = 0; + + } ceph_mdsc_put_request(req); dout("ceph_lock_message: rule: %d, op: %d, pid: %llu, start: %llu, " "length: %llu, wait: %d, type`: %d, err code %d", (int)lock_type, @@ -86,15 +105,18 @@ int ceph_lock(struct file *file, int cmd, struct file_lock *fl) err = ceph_lock_message(CEPH_LOCK_FCNTL, op, file, lock_cmd, wait, fl); if (!err) { - dout("mds locked, locking locally"); - err = posix_lock_file(file, fl, NULL); - if (err && (CEPH_MDS_OP_SETFILELOCK == op)) { - /* undo! This should only happen if the kernel detects - * local deadlock. */ - ceph_lock_message(CEPH_LOCK_FCNTL, op, file, - CEPH_LOCK_UNLOCK, 0, fl); - dout("got %d on posix_lock_file, undid lock", err); + if ( op != CEPH_MDS_OP_GETFILELOCK ){ + dout("mds locked, locking locally"); + err = posix_lock_file(file, fl, NULL); + if (err && (CEPH_MDS_OP_SETFILELOCK == op)) { + /* undo! This should only happen if the kernel detects + * local deadlock. */ + ceph_lock_message(CEPH_LOCK_FCNTL, op, file, + CEPH_LOCK_UNLOCK, 0, fl); + dout("got %d on posix_lock_file, undid lock", err); + } } + } else { dout("mds returned error code %d", err); } -- cgit v0.10.2 From 56b9aea3b740be7665be100872a913da9bdc653b Mon Sep 17 00:00:00 2001 From: Len Brown Date: Thu, 2 Dec 2010 01:19:32 -0500 Subject: intel_idle: recognize ARAT on WSM-EX We erroneously ignored the Always Running APIC Timer on WSM-EX. Move the check for ARAT down so that it can apply to any/all models. Signed-off-by: Len Brown diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index 41665d2..c131d58 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -273,8 +273,6 @@ static int intel_idle_probe(void) pr_debug(PREFIX "MWAIT substates: 0x%x\n", mwait_substates); - if (boot_cpu_has(X86_FEATURE_ARAT)) /* Always Reliable APIC Timer */ - lapic_timer_reliable_states = 0xFFFFFFFF; if (boot_cpu_data.x86 != 6) /* family 6 */ return -ENODEV; @@ -286,8 +284,6 @@ static int intel_idle_probe(void) case 0x1F: /* Core i7 and i5 Processor - Nehalem */ case 0x2E: /* Nehalem-EX Xeon */ case 0x2F: /* Westmere-EX Xeon */ - lapic_timer_reliable_states = (1 << 1); /* C1 */ - case 0x25: /* Westmere */ case 0x2C: /* Westmere */ cpuidle_state_table = nehalem_cstates; @@ -295,7 +291,6 @@ static int intel_idle_probe(void) case 0x1C: /* 28 - Atom Processor */ case 0x26: /* 38 - Lincroft Atom Processor */ - lapic_timer_reliable_states = (1 << 1); /* C1 */ cpuidle_state_table = atom_cstates; break; @@ -303,10 +298,6 @@ static int intel_idle_probe(void) case 0x2D: /* SNB Xeon */ cpuidle_state_table = snb_cstates; break; -#ifdef FUTURE_USE - case 0x17: /* 23 - Core 2 Duo */ - lapic_timer_reliable_states = (1 << 2) | (1 << 1); /* C2, C1 */ -#endif default: pr_debug(PREFIX "does not run on family %d model %d\n", @@ -314,6 +305,9 @@ static int intel_idle_probe(void) return -ENODEV; } + if (boot_cpu_has(X86_FEATURE_ARAT)) /* Always Reliable APIC Timer */ + lapic_timer_reliable_states = 0xFFFFFFFF; + pr_debug(PREFIX "v" INTEL_IDLE_VERSION " model 0x%X\n", boot_cpu_data.x86_model); -- cgit v0.10.2 From 6072d13c429373c5d63b69dadbbef40a9b035552 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Wed, 1 Dec 2010 13:35:19 -0500 Subject: Call the filesystem back whenever a page is removed from the page cache NFS needs to be able to release objects that are stored in the page cache once the page itself is no longer visible from the page cache. This patch adds a callback to the address space operations that allows filesystems to perform page cleanups once the page has been removed from the page cache. Original patch by: Linus Torvalds [trondmy: cover the cases of invalidate_inode_pages2() and truncate_inode_pages()] Signed-off-by: Trond Myklebust diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking index a91f308..b6426f1 100644 --- a/Documentation/filesystems/Locking +++ b/Documentation/filesystems/Locking @@ -173,12 +173,13 @@ prototypes: sector_t (*bmap)(struct address_space *, sector_t); int (*invalidatepage) (struct page *, unsigned long); int (*releasepage) (struct page *, int); + void (*freepage)(struct page *); int (*direct_IO)(int, struct kiocb *, const struct iovec *iov, loff_t offset, unsigned long nr_segs); int (*launder_page) (struct page *); locking rules: - All except set_page_dirty may block + All except set_page_dirty and freepage may block BKL PageLocked(page) i_mutex writepage: no yes, unlocks (see below) @@ -193,6 +194,7 @@ perform_write: no n/a yes bmap: no invalidatepage: no yes releasepage: no yes +freepage: no yes direct_IO: no launder_page: no yes @@ -288,6 +290,9 @@ buffers from the page in preparation for freeing it. It returns zero to indicate that the buffers are (or may be) freeable. If ->releasepage is zero, the kernel assumes that the fs has no private interest in the buffers. + ->freepage() is called when the kernel is done dropping the page +from the page cache. + ->launder_page() may be called prior to releasing a page if it is still found to be dirty. It returns zero if the page was successfully cleaned, or an error value if not. Note that in order to prevent the page diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt index ed7e5ef..3b14a55 100644 --- a/Documentation/filesystems/vfs.txt +++ b/Documentation/filesystems/vfs.txt @@ -534,6 +534,7 @@ struct address_space_operations { sector_t (*bmap)(struct address_space *, sector_t); int (*invalidatepage) (struct page *, unsigned long); int (*releasepage) (struct page *, int); + void (*freepage)(struct page *); ssize_t (*direct_IO)(int, struct kiocb *, const struct iovec *iov, loff_t offset, unsigned long nr_segs); struct page* (*get_xip_page)(struct address_space *, sector_t, @@ -679,6 +680,12 @@ struct address_space_operations { need to ensure this. Possibly it can clear the PageUptodate bit if it cannot free private data yet. + freepage: freepage is called once the page is no longer visible in + the page cache in order to allow the cleanup of any private + data. Since it may be called by the memory reclaimer, it + should not assume that the original address_space mapping still + exists, and it should not block. + direct_IO: called by the generic read/write routines to perform direct_IO - that is IO requests which bypass the page cache and transfer data directly between the storage and the diff --git a/include/linux/fs.h b/include/linux/fs.h index c9e06cc..090f0ea 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -602,6 +602,7 @@ struct address_space_operations { sector_t (*bmap)(struct address_space *, sector_t); void (*invalidatepage) (struct page *, unsigned long); int (*releasepage) (struct page *, gfp_t); + void (*freepage)(struct page *); ssize_t (*direct_IO)(int, struct kiocb *, const struct iovec *iov, loff_t offset, unsigned long nr_segs); int (*get_xip_mem)(struct address_space *, pgoff_t, int, diff --git a/mm/filemap.c b/mm/filemap.c index ea89840..6b9aee2 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -143,13 +143,18 @@ void __remove_from_page_cache(struct page *page) void remove_from_page_cache(struct page *page) { struct address_space *mapping = page->mapping; + void (*freepage)(struct page *); BUG_ON(!PageLocked(page)); + freepage = mapping->a_ops->freepage; spin_lock_irq(&mapping->tree_lock); __remove_from_page_cache(page); spin_unlock_irq(&mapping->tree_lock); mem_cgroup_uncharge_cache_page(page); + + if (freepage) + freepage(page); } EXPORT_SYMBOL(remove_from_page_cache); diff --git a/mm/truncate.c b/mm/truncate.c index ba887bf..3c2d5dd 100644 --- a/mm/truncate.c +++ b/mm/truncate.c @@ -390,6 +390,10 @@ invalidate_complete_page2(struct address_space *mapping, struct page *page) __remove_from_page_cache(page); spin_unlock_irq(&mapping->tree_lock); mem_cgroup_uncharge_cache_page(page); + + if (mapping->a_ops->freepage) + mapping->a_ops->freepage(page); + page_cache_release(page); /* pagecache ref */ return 1; failed: diff --git a/mm/vmscan.c b/mm/vmscan.c index d31d7ce..9ca587c 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -494,9 +494,16 @@ static int __remove_mapping(struct address_space *mapping, struct page *page) spin_unlock_irq(&mapping->tree_lock); swapcache_free(swap, page); } else { + void (*freepage)(struct page *); + + freepage = mapping->a_ops->freepage; + __remove_from_page_cache(page); spin_unlock_irq(&mapping->tree_lock); mem_cgroup_uncharge_cache_page(page); + + if (freepage != NULL) + freepage(page); } return 1; -- cgit v0.10.2 From 11de3b11e08cac26d59e88efaf4e316701883552 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Wed, 1 Dec 2010 14:17:06 -0500 Subject: NFS: Fix a memory leak in nfs_readdir We need to ensure that the entries in the nfs_cache_array get cleared when the page is removed from the page cache. To do so, we use the freepage address_space operation. Change nfs_readdir_clear_array to use kmap_atomic(), so that the function can be safely called from all contexts. Finally, modify the cache_page_release helper to call nfs_readdir_clear_array directly, when dealing with an anonymous page from 'uncached_readdir'. Signed-off-by: Trond Myklebust diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index e03537f..d529e0e 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -57,7 +57,7 @@ static int nfs_rename(struct inode *, struct dentry *, struct inode *, struct dentry *); static int nfs_fsync_dir(struct file *, int); static loff_t nfs_llseek_dir(struct file *, loff_t, int); -static int nfs_readdir_clear_array(struct page*, gfp_t); +static void nfs_readdir_clear_array(struct page*); const struct file_operations nfs_dir_operations = { .llseek = nfs_llseek_dir, @@ -83,8 +83,8 @@ const struct inode_operations nfs_dir_inode_operations = { .setattr = nfs_setattr, }; -const struct address_space_operations nfs_dir_addr_space_ops = { - .releasepage = nfs_readdir_clear_array, +const struct address_space_operations nfs_dir_aops = { + .freepage = nfs_readdir_clear_array, }; #ifdef CONFIG_NFS_V3 @@ -214,17 +214,15 @@ void nfs_readdir_release_array(struct page *page) * we are freeing strings created by nfs_add_to_readdir_array() */ static -int nfs_readdir_clear_array(struct page *page, gfp_t mask) +void nfs_readdir_clear_array(struct page *page) { - struct nfs_cache_array *array = nfs_readdir_get_array(page); + struct nfs_cache_array *array; int i; - if (IS_ERR(array)) - return PTR_ERR(array); + array = kmap_atomic(page, KM_USER0); for (i = 0; i < array->size; i++) kfree(array->array[i].string.name); - nfs_readdir_release_array(page); - return 0; + kunmap_atomic(array, KM_USER0); } /* @@ -639,6 +637,8 @@ int nfs_readdir_filler(nfs_readdir_descriptor_t *desc, struct page* page) static void cache_page_release(nfs_readdir_descriptor_t *desc) { + if (!desc->page->mapping) + nfs_readdir_clear_array(desc->page); page_cache_release(desc->page); desc->page = NULL; } diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 314f571..e67e31c 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -289,6 +289,7 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr) } else if (S_ISDIR(inode->i_mode)) { inode->i_op = NFS_SB(sb)->nfs_client->rpc_ops->dir_inode_ops; inode->i_fop = &nfs_dir_operations; + inode->i_data.a_ops = &nfs_dir_aops; if (nfs_server_capable(inode, NFS_CAP_READDIRPLUS)) set_bit(NFS_INO_ADVISE_RDPLUS, &NFS_I(inode)->flags); /* Deal with crossing mountpoints */ diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index c66fdb7..29d504d 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -401,6 +401,7 @@ extern const struct inode_operations nfs3_file_inode_operations; #endif /* CONFIG_NFS_V3 */ extern const struct file_operations nfs_file_operations; extern const struct address_space_operations nfs_file_aops; +extern const struct address_space_operations nfs_dir_aops; static inline struct nfs_open_context *nfs_file_open_context(struct file *filp) { -- cgit v0.10.2 From 9306990a656d9cfd8bf3586938012729c1f2ea50 Mon Sep 17 00:00:00 2001 From: Vasanthakumar Thiagarajan Date: Tue, 30 Nov 2010 23:24:09 -0800 Subject: ath9k: Fix bug in reading input gpio state for ar9003 The register which gives input gpio state is 0x404c for ar9003, currently 0x4048 is wrongly used. This will disable RF and make it unusable on some of AR9003. Cc:stable@kernel.org Signed-off-by: Vasanthakumar Thiagarajan Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 6ebc68b..c7fbe25 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -2044,7 +2044,8 @@ u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio) val = REG_READ(ah, AR7010_GPIO_IN); return (MS(val, AR7010_GPIO_IN_VAL) & AR_GPIO_BIT(gpio)) == 0; } else if (AR_SREV_9300_20_OR_LATER(ah)) - return MS_REG_READ(AR9300, gpio) != 0; + return (MS(REG_READ(ah, AR_GPIO_IN), AR9300_GPIO_IN_VAL) & + AR_GPIO_BIT(gpio)) != 0; else if (AR_SREV_9271(ah)) return MS_REG_READ(AR9271, gpio) != 0; else if (AR_SREV_9287_11_OR_LATER(ah)) diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h index dddf579..2c6a22f 100644 --- a/drivers/net/wireless/ath/ath9k/reg.h +++ b/drivers/net/wireless/ath/ath9k/reg.h @@ -984,11 +984,13 @@ enum { #define AR9287_GPIO_IN_VAL_S 11 #define AR9271_GPIO_IN_VAL 0xFFFF0000 #define AR9271_GPIO_IN_VAL_S 16 -#define AR9300_GPIO_IN_VAL 0x0001FFFF -#define AR9300_GPIO_IN_VAL_S 0 #define AR7010_GPIO_IN_VAL 0x0000FFFF #define AR7010_GPIO_IN_VAL_S 0 +#define AR_GPIO_IN 0x404c +#define AR9300_GPIO_IN_VAL 0x0001FFFF +#define AR9300_GPIO_IN_VAL_S 0 + #define AR_GPIO_OE_OUT (AR_SREV_9300_20_OR_LATER(ah) ? 0x4050 : 0x404c) #define AR_GPIO_OE_OUT_DRV 0x3 #define AR_GPIO_OE_OUT_DRV_NO 0x0 -- cgit v0.10.2 From e702ba18f25887c76d26c8a85cc1706463c62e9a Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Wed, 1 Dec 2010 19:07:46 +0100 Subject: ath9k_hw: fix endian issues with CTLs on AR9003 Parsing data using bitfields is messy, because it makes endian handling much harder. AR9002 and earlier got it right, AR9003 got it wrong. This might lead to either using too high or too low tx power values, depending on frequency and eeprom settings. Fix it by getting rid of the CTL related bitfields entirely and use masks instead. Signed-off-by: Felix Fietkau Cc: stable@kernel.org Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c index c418235..a7b82f0 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c @@ -55,6 +55,8 @@ #define SUB_NUM_CTL_MODES_AT_5G_40 2 /* excluding HT40, EXT-OFDM */ #define SUB_NUM_CTL_MODES_AT_2G_40 3 /* excluding HT40, EXT-OFDM, EXT-CCK */ +#define CTL(_tpower, _flag) ((_tpower) | ((_flag) << 6)) + static const struct ar9300_eeprom ar9300_default = { .eepromVersion = 2, .templateVersion = 2, @@ -290,20 +292,21 @@ static const struct ar9300_eeprom ar9300_default = { } }, .ctlPowerData_2G = { - { { {60, 0}, {60, 1}, {60, 0}, {60, 0} } }, - { { {60, 0}, {60, 1}, {60, 0}, {60, 0} } }, - { { {60, 1}, {60, 0}, {60, 0}, {60, 1} } }, + { { CTL(60, 0), CTL(60, 1), CTL(60, 0), CTL(60, 0) } }, + { { CTL(60, 0), CTL(60, 1), CTL(60, 0), CTL(60, 0) } }, + { { CTL(60, 1), CTL(60, 0), CTL(60, 0), CTL(60, 1) } }, - { { {60, 1}, {60, 0}, {0, 0}, {0, 0} } }, - { { {60, 0}, {60, 1}, {60, 0}, {60, 0} } }, - { { {60, 0}, {60, 1}, {60, 0}, {60, 0} } }, + { { CTL(60, 1), CTL(60, 0), CTL(0, 0), CTL(0, 0) } }, + { { CTL(60, 0), CTL(60, 1), CTL(60, 0), CTL(60, 0) } }, + { { CTL(60, 0), CTL(60, 1), CTL(60, 0), CTL(60, 0) } }, - { { {60, 0}, {60, 1}, {60, 1}, {60, 0} } }, - { { {60, 0}, {60, 1}, {60, 0}, {60, 0} } }, - { { {60, 0}, {60, 1}, {60, 0}, {60, 0} } }, + { { CTL(60, 0), CTL(60, 1), CTL(60, 1), CTL(60, 0) } }, + { { CTL(60, 0), CTL(60, 1), CTL(60, 0), CTL(60, 0) } }, + { { CTL(60, 0), CTL(60, 1), CTL(60, 0), CTL(60, 0) } }, - { { {60, 0}, {60, 1}, {60, 0}, {60, 0} } }, - { { {60, 0}, {60, 1}, {60, 1}, {60, 1} } }, + { { CTL(60, 0), CTL(60, 1), CTL(60, 0), CTL(60, 0) } }, + { { CTL(60, 0), CTL(60, 1), CTL(60, 1), CTL(60, 1) } }, + { { CTL(60, 0), CTL(60, 1), CTL(60, 1), CTL(60, 1) } }, }, .modalHeader5G = { /* 4 idle,t1,t2,b (4 bits per setting) */ @@ -568,56 +571,56 @@ static const struct ar9300_eeprom ar9300_default = { .ctlPowerData_5G = { { { - {60, 1}, {60, 1}, {60, 1}, {60, 1}, - {60, 1}, {60, 1}, {60, 1}, {60, 0}, + CTL(60, 1), CTL(60, 1), CTL(60, 1), CTL(60, 1), + CTL(60, 1), CTL(60, 1), CTL(60, 1), CTL(60, 0), } }, { { - {60, 1}, {60, 1}, {60, 1}, {60, 1}, - {60, 1}, {60, 1}, {60, 1}, {60, 0}, + CTL(60, 1), CTL(60, 1), CTL(60, 1), CTL(60, 1), + CTL(60, 1), CTL(60, 1), CTL(60, 1), CTL(60, 0), } }, { { - {60, 0}, {60, 1}, {60, 0}, {60, 1}, - {60, 1}, {60, 1}, {60, 1}, {60, 1}, + CTL(60, 0), CTL(60, 1), CTL(60, 0), CTL(60, 1), + CTL(60, 1), CTL(60, 1), CTL(60, 1), CTL(60, 1), } }, { { - {60, 0}, {60, 1}, {60, 1}, {60, 0}, - {60, 1}, {60, 0}, {60, 0}, {60, 0}, + CTL(60, 0), CTL(60, 1), CTL(60, 1), CTL(60, 0), + CTL(60, 1), CTL(60, 0), CTL(60, 0), CTL(60, 0), } }, { { - {60, 1}, {60, 1}, {60, 1}, {60, 0}, - {60, 0}, {60, 0}, {60, 0}, {60, 0}, + CTL(60, 1), CTL(60, 1), CTL(60, 1), CTL(60, 0), + CTL(60, 0), CTL(60, 0), CTL(60, 0), CTL(60, 0), } }, { { - {60, 1}, {60, 1}, {60, 1}, {60, 1}, - {60, 1}, {60, 0}, {60, 0}, {60, 0}, + CTL(60, 1), CTL(60, 1), CTL(60, 1), CTL(60, 1), + CTL(60, 1), CTL(60, 0), CTL(60, 0), CTL(60, 0), } }, { { - {60, 1}, {60, 1}, {60, 1}, {60, 1}, - {60, 1}, {60, 1}, {60, 1}, {60, 1}, + CTL(60, 1), CTL(60, 1), CTL(60, 1), CTL(60, 1), + CTL(60, 1), CTL(60, 1), CTL(60, 1), CTL(60, 1), } }, { { - {60, 1}, {60, 1}, {60, 0}, {60, 1}, - {60, 1}, {60, 1}, {60, 1}, {60, 0}, + CTL(60, 1), CTL(60, 1), CTL(60, 0), CTL(60, 1), + CTL(60, 1), CTL(60, 1), CTL(60, 1), CTL(60, 0), } }, { { - {60, 1}, {60, 0}, {60, 1}, {60, 1}, - {60, 1}, {60, 1}, {60, 0}, {60, 1}, + CTL(60, 1), CTL(60, 0), CTL(60, 1), CTL(60, 1), + CTL(60, 1), CTL(60, 1), CTL(60, 0), CTL(60, 1), } }, } @@ -1827,9 +1830,9 @@ static u16 ar9003_hw_get_direct_edge_power(struct ar9300_eeprom *eep, struct cal_ctl_data_5g *ctl_5g = eep->ctlPowerData_5G; if (is2GHz) - return ctl_2g[idx].ctlEdges[edge].tPower; + return CTL_EDGE_TPOWER(ctl_2g[idx].ctlEdges[edge]); else - return ctl_5g[idx].ctlEdges[edge].tPower; + return CTL_EDGE_TPOWER(ctl_5g[idx].ctlEdges[edge]); } static u16 ar9003_hw_get_indirect_edge_power(struct ar9300_eeprom *eep, @@ -1847,12 +1850,12 @@ static u16 ar9003_hw_get_indirect_edge_power(struct ar9300_eeprom *eep, if (is2GHz) { if (ath9k_hw_fbin2freq(ctl_freqbin[edge - 1], 1) < freq && - ctl_2g[idx].ctlEdges[edge - 1].flag) - return ctl_2g[idx].ctlEdges[edge - 1].tPower; + CTL_EDGE_FLAGS(ctl_2g[idx].ctlEdges[edge - 1])) + return CTL_EDGE_TPOWER(ctl_2g[idx].ctlEdges[edge - 1]); } else { if (ath9k_hw_fbin2freq(ctl_freqbin[edge - 1], 0) < freq && - ctl_5g[idx].ctlEdges[edge - 1].flag) - return ctl_5g[idx].ctlEdges[edge - 1].tPower; + CTL_EDGE_FLAGS(ctl_5g[idx].ctlEdges[edge - 1])) + return CTL_EDGE_TPOWER(ctl_5g[idx].ctlEdges[edge - 1]); } return AR9300_MAX_RATE_POWER; diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h index 3c533bb..655b303 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h +++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h @@ -261,17 +261,12 @@ struct cal_tgt_pow_ht { u8 tPow2x[14]; } __packed; -struct cal_ctl_edge_pwr { - u8 tPower:6, - flag:2; -} __packed; - struct cal_ctl_data_2g { - struct cal_ctl_edge_pwr ctlEdges[AR9300_NUM_BAND_EDGES_2G]; + u8 ctlEdges[AR9300_NUM_BAND_EDGES_2G]; } __packed; struct cal_ctl_data_5g { - struct cal_ctl_edge_pwr ctlEdges[AR9300_NUM_BAND_EDGES_5G]; + u8 ctlEdges[AR9300_NUM_BAND_EDGES_5G]; } __packed; struct ar9300_eeprom { diff --git a/drivers/net/wireless/ath/ath9k/eeprom.c b/drivers/net/wireless/ath/ath9k/eeprom.c index 1266333..2bbf94d 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom.c +++ b/drivers/net/wireless/ath/ath9k/eeprom.c @@ -240,16 +240,16 @@ u16 ath9k_hw_get_max_edge_power(u16 freq, struct cal_ctl_edges *pRdEdgesPower, for (i = 0; (i < num_band_edges) && (pRdEdgesPower[i].bChannel != AR5416_BCHAN_UNUSED); i++) { if (freq == ath9k_hw_fbin2freq(pRdEdgesPower[i].bChannel, is2GHz)) { - twiceMaxEdgePower = pRdEdgesPower[i].tPower; + twiceMaxEdgePower = CTL_EDGE_TPOWER(pRdEdgesPower[i].ctl); break; } else if ((i > 0) && (freq < ath9k_hw_fbin2freq(pRdEdgesPower[i].bChannel, is2GHz))) { if (ath9k_hw_fbin2freq(pRdEdgesPower[i - 1].bChannel, is2GHz) < freq && - pRdEdgesPower[i - 1].flag) { + CTL_EDGE_FLAGS(pRdEdgesPower[i - 1].ctl)) { twiceMaxEdgePower = - pRdEdgesPower[i - 1].tPower; + CTL_EDGE_TPOWER(pRdEdgesPower[i - 1].ctl); } break; } diff --git a/drivers/net/wireless/ath/ath9k/eeprom.h b/drivers/net/wireless/ath/ath9k/eeprom.h index dacb45e..41ad1fe 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom.h +++ b/drivers/net/wireless/ath/ath9k/eeprom.h @@ -233,6 +233,9 @@ #define AR9287_CHECKSUM_LOCATION (AR9287_EEP_START_LOC + 1) +#define CTL_EDGE_TPOWER(_ctl) ((_ctl) & 0x3f) +#define CTL_EDGE_FLAGS(_ctl) (((_ctl) >> 6) & 0x03) + enum eeprom_param { EEP_NFTHRESH_5, EEP_NFTHRESH_2, @@ -535,18 +538,10 @@ struct cal_target_power_ht { u8 tPow2x[8]; } __packed; - -#ifdef __BIG_ENDIAN_BITFIELD -struct cal_ctl_edges { - u8 bChannel; - u8 flag:2, tPower:6; -} __packed; -#else struct cal_ctl_edges { u8 bChannel; - u8 tPower:6, flag:2; + u8 ctl; } __packed; -#endif struct cal_data_op_loop_ar9287 { u8 pwrPdg[2][5]; -- cgit v0.10.2 From f67e07eb3decd7840b621fba37fd600adfdf99f8 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Wed, 1 Dec 2010 19:07:47 +0100 Subject: ath9k_hw: fix more bitfield related endian issues A few LNA control related flags were also specified as a bitfields, however for some strange reason they were written in big-endian order this time. Fix this by using flags instead. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/eeprom.h b/drivers/net/wireless/ath/ath9k/eeprom.h index 41ad1fe..dd59f09 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom.h +++ b/drivers/net/wireless/ath/ath9k/eeprom.h @@ -236,6 +236,15 @@ #define CTL_EDGE_TPOWER(_ctl) ((_ctl) & 0x3f) #define CTL_EDGE_FLAGS(_ctl) (((_ctl) >> 6) & 0x03) +#define LNA_CTL_BUF_MODE BIT(0) +#define LNA_CTL_ISEL_LO BIT(1) +#define LNA_CTL_ISEL_HI BIT(2) +#define LNA_CTL_BUF_IN BIT(3) +#define LNA_CTL_FEM_BAND BIT(4) +#define LNA_CTL_LOCAL_BIAS BIT(5) +#define LNA_CTL_FORCE_XPA BIT(6) +#define LNA_CTL_USE_ANT1 BIT(7) + enum eeprom_param { EEP_NFTHRESH_5, EEP_NFTHRESH_2, @@ -381,10 +390,7 @@ struct modal_eep_header { u8 xatten2Margin[AR5416_MAX_CHAINS]; u8 ob_ch1; u8 db_ch1; - u8 useAnt1:1, - force_xpaon:1, - local_bias:1, - femBandSelectUsed:1, xlnabufin:1, xlnaisel:2, xlnabufmode:1; + u8 lna_ctl; u8 miscBits; u16 xpaBiasLvlFreq[3]; u8 futureModal[6]; diff --git a/drivers/net/wireless/ath/ath9k/eeprom_def.c b/drivers/net/wireless/ath/ath9k/eeprom_def.c index 76b4d65..526d7c9 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom_def.c +++ b/drivers/net/wireless/ath/ath9k/eeprom_def.c @@ -451,9 +451,10 @@ static void ath9k_hw_def_set_board_values(struct ath_hw *ah, ath9k_hw_analog_shift_rmw(ah, AR_AN_TOP2, AR_AN_TOP2_LOCALBIAS, AR_AN_TOP2_LOCALBIAS_S, - pModal->local_bias); + !!(pModal->lna_ctl & + LNA_CTL_LOCAL_BIAS)); REG_RMW_FIELD(ah, AR_PHY_XPA_CFG, AR_PHY_FORCE_XPA_CFG, - pModal->force_xpaon); + !!(pModal->lna_ctl & LNA_CTL_FORCE_XPA)); } REG_RMW_FIELD(ah, AR_PHY_SETTLING, AR_PHY_SETTLING_SWITCH, @@ -1428,9 +1429,9 @@ static u8 ath9k_hw_def_get_num_ant_config(struct ath_hw *ah, num_ant_config = 1; - if (pBase->version >= 0x0E0D) - if (pModal->useAnt1) - num_ant_config += 1; + if (pBase->version >= 0x0E0D && + (pModal->lna_ctl & LNA_CTL_USE_ANT1)) + num_ant_config += 1; return num_ant_config; } -- cgit v0.10.2 From d89197c7f34934fbb0f96d938a0d6cfe0b8bcb1c Mon Sep 17 00:00:00 2001 From: "John W. Linville" Date: Thu, 2 Dec 2010 14:10:58 -0500 Subject: Revert "ath9k: Fix STA disconnect issue due to received MIC failed bcast frames" This reverts commit 916448e77f6bcaaa7f13c3de0c3851783ae2bfd0. "As far as I can tell, either of these patches breaks multiple VIF scenarios. I'm not sure exactly why, but I had to revert this to get any of my interfaces to associate." -- Ben Greear http://marc.info/?l=linux-wireless&m=129123368719339&w=2 Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c index c996963..8c13479 100644 --- a/drivers/net/wireless/ath/ath9k/mac.c +++ b/drivers/net/wireless/ath/ath9k/mac.c @@ -703,7 +703,8 @@ int ath9k_hw_rxprocdesc(struct ath_hw *ah, struct ath_desc *ds, rs->rs_phyerr = phyerr; } else if (ads.ds_rxstatus8 & AR_DecryptCRCErr) rs->rs_status |= ATH9K_RXERR_DECRYPT; - else if (ads.ds_rxstatus8 & AR_MichaelErr) + else if ((ads.ds_rxstatus8 & AR_MichaelErr) && + rs->rs_keyix != ATH9K_RXKEYIX_INVALID) rs->rs_status |= ATH9K_RXERR_MIC; else if (ads.ds_rxstatus8 & AR_KeyMiss) rs->rs_status |= ATH9K_RXERR_DECRYPT; diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index 14d479f..1a62e35 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -1049,11 +1049,9 @@ static void ath9k_rx_skb_postprocess(struct ath_common *common, int hdrlen, padpos, padsize; u8 keyix; __le16 fc; - bool is_mc; /* see if any padding is done by the hw and remove it */ hdr = (struct ieee80211_hdr *) skb->data; - is_mc = !!is_multicast_ether_addr(hdr->addr1); hdrlen = ieee80211_get_hdrlen_from_skb(skb); fc = hdr->frame_control; padpos = ath9k_cmn_padpos(hdr->frame_control); @@ -1074,7 +1072,7 @@ static void ath9k_rx_skb_postprocess(struct ath_common *common, keyix = rx_stats->rs_keyix; - if ((is_mc || !(keyix == ATH9K_RXKEYIX_INVALID)) && !decrypt_error && + if (!(keyix == ATH9K_RXKEYIX_INVALID) && !decrypt_error && ieee80211_has_protected(fc)) { rxs->flag |= RX_FLAG_DECRYPTED; } else if (ieee80211_has_protected(fc) -- cgit v0.10.2 From 6d20e8406f0942228a73000663c2b33f488103ea Mon Sep 17 00:00:00 2001 From: Suresh Jayaraman Date: Wed, 1 Dec 2010 14:42:28 +0530 Subject: cifs: add attribute cache timeout (actimeo) tunable Currently, the attribute cache timeout for CIFS is hardcoded to 1 second. This means that the client might have to issue a QPATHINFO/QFILEINFO call every 1 second to verify if something has changes, which seems too expensive. On the other hand, if the timeout is hardcoded to a higher value, workloads that expect strict cache coherency might see unexpected results. Making attribute cache timeout as a tunable will allow us to make a tradeoff between performance and cache metadata correctness depending on the application/workload needs. Add 'actimeo' tunable that can be used to tune the attribute cache timeout. The default timeout is set to 1 second. Also, display actimeo option value in /proc/mounts. It appears to me that 'actimeo' and the proposed (but not yet merged) 'strictcache' option cannot coexist, so care must be taken that we reset the other option if one of them is set. Changes since last post: - fix option parsing and handle possible values correcly Reviewed-by: Jeff Layton Signed-off-by: Suresh Jayaraman Signed-off-by: Steve French diff --git a/fs/cifs/README b/fs/cifs/README index ee68d10..46af99a 100644 --- a/fs/cifs/README +++ b/fs/cifs/README @@ -337,6 +337,15 @@ A partial list of the supported mount options follows: wsize default write size (default 57344) maximum wsize currently allowed by CIFS is 57344 (fourteen 4096 byte pages) + actimeo=n attribute cache timeout in seconds (default 1 second). + After this timeout, the cifs client requests fresh attribute + information from the server. This option allows to tune the + attribute cache timeout to suit the workload needs. Shorter + timeouts mean better the cache coherency, but increased number + of calls to the server. Longer timeouts mean reduced number + of calls to the server at the expense of less stricter cache + coherency checks (i.e. incorrect attribute cache for a short + period of time). rw mount the network share read-write (note that the server may still consider the share read-only) ro mount network share read-only diff --git a/fs/cifs/cifs_fs_sb.h b/fs/cifs/cifs_fs_sb.h index e9a393c..7852cd6 100644 --- a/fs/cifs/cifs_fs_sb.h +++ b/fs/cifs/cifs_fs_sb.h @@ -48,6 +48,7 @@ struct cifs_sb_info { struct nls_table *local_nls; unsigned int rsize; unsigned int wsize; + unsigned long actimeo; /* attribute cache timeout (jiffies) */ atomic_t active; uid_t mnt_uid; gid_t mnt_gid; diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 76c8a90..56a4b75 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -463,6 +463,8 @@ cifs_show_options(struct seq_file *s, struct vfsmount *m) seq_printf(s, ",rsize=%d", cifs_sb->rsize); seq_printf(s, ",wsize=%d", cifs_sb->wsize); + /* convert actimeo and display it in seconds */ + seq_printf(s, ",actimeo=%lu", cifs_sb->actimeo / HZ); return 0; } diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index b577bf0..94ccfac 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -45,6 +45,16 @@ #define CIFS_MIN_RCV_POOL 4 /* + * default attribute cache timeout (jiffies) + */ +#define CIFS_DEF_ACTIMEO (1 * HZ) + +/* + * max attribute cache timeout (jiffies) - 2^30 + */ +#define CIFS_MAX_ACTIMEO (1 << 30) + +/* * MAX_REQ is the maximum number of requests that WE will send * on one socket concurrently. It also matches the most common * value of max multiplex returned by servers. We may diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 32fa4d9..bb17ee2 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -105,6 +105,7 @@ struct smb_vol { unsigned int wsize; bool sockopt_tcp_nodelay:1; unsigned short int port; + unsigned long actimeo; /* attribute cache timeout (jiffies) */ char *prepath; struct sockaddr_storage srcaddr; /* allow binding to a local IP */ struct nls_table *local_nls; @@ -840,6 +841,8 @@ cifs_parse_mount_options(char *options, const char *devname, /* default to using server inode numbers where available */ vol->server_ino = 1; + vol->actimeo = CIFS_DEF_ACTIMEO; + if (!options) return 1; @@ -1214,6 +1217,16 @@ cifs_parse_mount_options(char *options, const char *devname, printk(KERN_WARNING "CIFS: server net" "biosname longer than 15 truncated.\n"); } + } else if (strnicmp(data, "actimeo", 7) == 0) { + if (value && *value) { + vol->actimeo = HZ * simple_strtoul(value, + &value, 0); + if (vol->actimeo > CIFS_MAX_ACTIMEO) { + cERROR(1, "CIFS: attribute cache" + "timeout too large"); + return 1; + } + } } else if (strnicmp(data, "credentials", 4) == 0) { /* ignore */ } else if (strnicmp(data, "version", 3) == 0) { @@ -2571,6 +2584,8 @@ static void setup_cifs_sb(struct smb_vol *pvolume_info, cFYI(1, "file mode: 0x%x dir mode: 0x%x", cifs_sb->mnt_file_mode, cifs_sb->mnt_dir_mode); + cifs_sb->actimeo = pvolume_info->actimeo; + if (pvolume_info->noperm) cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_PERM; if (pvolume_info->setuids) diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 28cb6e7..bb5ca48 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -1653,6 +1653,7 @@ static bool cifs_inode_needs_reval(struct inode *inode) { struct cifsInodeInfo *cifs_i = CIFS_I(inode); + struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); if (cifs_i->clientCanCacheRead) return false; @@ -1663,12 +1664,12 @@ cifs_inode_needs_reval(struct inode *inode) if (cifs_i->time == 0) return true; - /* FIXME: the actimeo should be tunable */ - if (time_after_eq(jiffies, cifs_i->time + HZ)) + if (!time_in_range(jiffies, cifs_i->time, + cifs_i->time + cifs_sb->actimeo)) return true; /* hardlinked files w/ noserverino get "special" treatment */ - if (!(CIFS_SB(inode->i_sb)->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) && + if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) && S_ISREG(inode->i_mode) && inode->i_nlink != 1) return true; -- cgit v0.10.2 From f8e9616108c7003e6499c162459258f11c9dc85e Mon Sep 17 00:00:00 2001 From: Vlad Lungu Date: Mon, 29 Nov 2010 22:52:52 +0000 Subject: stmmac: priv->lock can be used uninitialized To reproduce: if connman (http://connman.net/) is started, inserting the stmmac module triggers a "BUG: spinlock bad magic on CPU#0". Registering the device in stmmac_probe() sends a notification to connman which brings the interface up before the lock is initialized. Signed-off-by: Vlad Lungu Signed-off-by: David S. Miller diff --git a/drivers/net/stmmac/stmmac_main.c b/drivers/net/stmmac/stmmac_main.c index 06bc603..2114837 100644 --- a/drivers/net/stmmac/stmmac_main.c +++ b/drivers/net/stmmac/stmmac_main.c @@ -1509,6 +1509,8 @@ static int stmmac_probe(struct net_device *dev) pr_warning("\tno valid MAC address;" "please, use ifconfig or nwhwconfig!\n"); + spin_lock_init(&priv->lock); + ret = register_netdev(dev); if (ret) { pr_err("%s: ERROR %i registering the device\n", @@ -1520,8 +1522,6 @@ static int stmmac_probe(struct net_device *dev) dev->name, (dev->features & NETIF_F_SG) ? "on" : "off", (dev->features & NETIF_F_HW_CSUM) ? "on" : "off"); - spin_lock_init(&priv->lock); - return ret; } -- cgit v0.10.2 From e7dfc8dbdf9a7fa1ef04c63100a71f4102b82ed3 Mon Sep 17 00:00:00 2001 From: "Alexander V. Lukyanov" Date: Tue, 30 Nov 2010 03:57:39 +0000 Subject: tulip: fix hang in dmfe driver on sending of big packet This patch fixes hang in dmfe driver on attempt of sending a big packet. Without this patch the code stops the queue and never wakes it again. Signed-off-by: Alexander V. Lukyanov Acked-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/drivers/net/tulip/dmfe.c b/drivers/net/tulip/dmfe.c index a9f7d5d..7064e03 100644 --- a/drivers/net/tulip/dmfe.c +++ b/drivers/net/tulip/dmfe.c @@ -688,9 +688,6 @@ static netdev_tx_t dmfe_start_xmit(struct sk_buff *skb, DMFE_DBUG(0, "dmfe_start_xmit", 0); - /* Resource flag check */ - netif_stop_queue(dev); - /* Too large packet check */ if (skb->len > MAX_PACKET_SIZE) { pr_err("big packet = %d\n", (u16)skb->len); @@ -698,6 +695,9 @@ static netdev_tx_t dmfe_start_xmit(struct sk_buff *skb, return NETDEV_TX_OK; } + /* Resource flag check */ + netif_stop_queue(dev); + spin_lock_irqsave(&db->lock, flags); /* No Tx resource check, it never happen nromally */ -- cgit v0.10.2 From 220cad3cbf553f893432919b458da36489373fc6 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Thu, 18 Nov 2010 09:32:58 +0800 Subject: drm/i915: Always set the DP transcoder config to 8BPC. The pipe is always set to 8BPC, but here we were leaving whatever previous bits were set by the BIOS in place. Signed-off-by: Eric Anholt Tested-by: Keith Packard Signed-off-by: Chris Wilson Cc: stable@kernel.org diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 25ed911..878fc76 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3033,6 +3033,7 @@ #define TRANS_DP_10BPC (1<<9) #define TRANS_DP_6BPC (2<<9) #define TRANS_DP_12BPC (3<<9) +#define TRANS_DP_BPC_MASK (3<<9) #define TRANS_DP_VSYNC_ACTIVE_HIGH (1<<4) #define TRANS_DP_VSYNC_ACTIVE_LOW 0 #define TRANS_DP_HSYNC_ACTIVE_HIGH (1<<3) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 255b52e..9d3af3c 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2120,9 +2120,11 @@ static void ironlake_crtc_enable(struct drm_crtc *crtc) reg = TRANS_DP_CTL(pipe); temp = I915_READ(reg); temp &= ~(TRANS_DP_PORT_SEL_MASK | - TRANS_DP_SYNC_MASK); + TRANS_DP_SYNC_MASK | + TRANS_DP_BPC_MASK); temp |= (TRANS_DP_OUTPUT_ENABLE | TRANS_DP_ENH_FRAMING); + temp |= TRANS_DP_8BPC; if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC) temp |= TRANS_DP_HSYNC_ACTIVE_HIGH; -- cgit v0.10.2 From 5bddd17fec58f253cddd0bc9eab2cd9eb1bbab4a Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Thu, 18 Nov 2010 09:32:59 +0800 Subject: drm/i915: Apply a workaround for transitioning from DP on pipe B to HDMI. This workaround only applies to Ironlake. Signed-off-by: Eric Anholt Signed-off-by: Chris Wilson Cc: stable@kernel.org diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 300f64b..1d8d068 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1374,6 +1374,7 @@ intel_dp_link_down(struct intel_dp *intel_dp) { struct drm_device *dev = intel_dp->base.base.dev; struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_crtc *intel_crtc = to_intel_crtc(intel_dp->base.base.crtc); uint32_t DP = intel_dp->DP; DRM_DEBUG_KMS("\n"); @@ -1398,6 +1399,26 @@ intel_dp_link_down(struct intel_dp *intel_dp) if (is_edp(intel_dp)) DP |= DP_LINK_TRAIN_OFF; + + if (!HAS_PCH_CPT(dev) && (DP & DP_PIPEB_SELECT)) { + /* Hardware workaround: leaving our transcoder select + * set to transcoder B while it's off will prevent the + * corresponding HDMI output on transcoder A. + * + * Combine this with another hardware workaround: + * transcoder select bit can only be cleared while the + * port is enabled. + */ + DP &= ~DP_PIPEB_SELECT; + I915_WRITE(intel_dp->output_reg, DP); + + /* Changes to enable or select take place the vblank + * after being written. + */ + intel_wait_for_vblank(intel_dp->base.base.dev, + intel_crtc->pipe); + } + I915_WRITE(intel_dp->output_reg, DP & ~DP_PORT_EN); POSTING_READ(intel_dp->output_reg); } -- cgit v0.10.2 From 9f5ead76d402f591ab810e71eae59ec28bf39eb9 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Wed, 1 Dec 2010 10:55:46 +0000 Subject: omap: PM debug: fix wake-on-timer debugfs dependency Wakeup-on-timer code does not have/need debugfs dependency. Move the function out of debugfs ifdef. Fixes compile error when CONFIG_DEBUG_FS is disabled but PM debug is enabled. Reported-by: Tony Lindgren Signed-off-by: Kevin Hilman Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c index 5e81517..a8afb61 100644 --- a/arch/arm/mach-omap2/pm-debug.c +++ b/arch/arm/mach-omap2/pm-debug.c @@ -161,6 +161,23 @@ void omap2_pm_dump(int mode, int resume, unsigned int us) printk(KERN_INFO "%-20s: 0x%08x\n", regs[i].name, regs[i].val); } +void omap2_pm_wakeup_on_timer(u32 seconds, u32 milliseconds) +{ + u32 tick_rate, cycles; + + if (!seconds && !milliseconds) + return; + + tick_rate = clk_get_rate(omap_dm_timer_get_fclk(gptimer_wakeup)); + cycles = tick_rate * seconds + tick_rate * milliseconds / 1000; + omap_dm_timer_stop(gptimer_wakeup); + omap_dm_timer_set_load_start(gptimer_wakeup, 0, 0xffffffff - cycles); + + pr_info("PM: Resume timer in %u.%03u secs" + " (%d ticks at %d ticks/sec.)\n", + seconds, milliseconds, cycles, tick_rate); +} + #ifdef CONFIG_DEBUG_FS #include #include @@ -354,23 +371,6 @@ void pm_dbg_update_time(struct powerdomain *pwrdm, int prev) pwrdm->timer = t; } -void omap2_pm_wakeup_on_timer(u32 seconds, u32 milliseconds) -{ - u32 tick_rate, cycles; - - if (!seconds && !milliseconds) - return; - - tick_rate = clk_get_rate(omap_dm_timer_get_fclk(gptimer_wakeup)); - cycles = tick_rate * seconds + tick_rate * milliseconds / 1000; - omap_dm_timer_stop(gptimer_wakeup); - omap_dm_timer_set_load_start(gptimer_wakeup, 0, 0xffffffff - cycles); - - pr_info("PM: Resume timer in %u.%03u secs" - " (%d ticks at %d ticks/sec.)\n", - seconds, milliseconds, cycles, tick_rate); -} - static int clkdm_dbg_show_counter(struct clockdomain *clkdm, void *user) { struct seq_file *s = (struct seq_file *)user; -- cgit v0.10.2 From cbeae41888bddb2d8c23db281de5f38f4be6a9bb Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 2 Nov 2010 09:12:57 +0800 Subject: dma: imx-dma: fix imxdma_probe error path otherwise, i will be -1 inside the latest iteration of the while loop. Signed-off-by: Axel Lin Acked-by: Sascha Hauer Signed-off-by: Dan Williams diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c index f629e49..e53d438 100644 --- a/drivers/dma/imx-dma.c +++ b/drivers/dma/imx-dma.c @@ -379,7 +379,7 @@ static int __init imxdma_probe(struct platform_device *pdev) return 0; err_init: - while (i-- >= 0) { + while (--i >= 0) { struct imxdma_channel *imxdmac = &imxdma->channel[i]; imx_dma_free(imxdmac->imxdma_channel); } -- cgit v0.10.2 From 51a1efe2e84493439db32c07471e835c752a7923 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 2 Nov 2010 09:52:17 +0800 Subject: dma: intel_mid_dma: fix double free on mid_setup_dma error path We should not call kfree(dma) in mid_setup_dma error path because the memory is allocated in intel_mid_dma_probe and will be freed in intel_mid_dma_probe error path if mid_setup_dma return error. Signed-off-by: Axel Lin Signed-off-by: Dan Williams diff --git a/drivers/dma/intel_mid_dma.c b/drivers/dma/intel_mid_dma.c index 338bc4e..4c55d45 100644 --- a/drivers/dma/intel_mid_dma.c +++ b/drivers/dma/intel_mid_dma.c @@ -1075,7 +1075,6 @@ static int mid_setup_dma(struct pci_dev *pdev) if (NULL == dma->dma_pool) { pr_err("ERR_MDMA:pci_pool_create failed\n"); err = -ENOMEM; - kfree(dma); goto err_dma_pool; } @@ -1186,7 +1185,6 @@ err_engine: free_irq(pdev->irq, dma); err_irq: pci_pool_destroy(dma->dma_pool); - kfree(dma); err_dma_pool: pr_err("ERR_MDMA:setup_dma failed: %d\n", err); return err; -- cgit v0.10.2 From 87e51107323a84e26a5004337217fc954e8d9545 Mon Sep 17 00:00:00 2001 From: Tracey Dent Date: Sat, 6 Nov 2010 17:01:36 -0400 Subject: drivers/dma/: Use the ccflag-y instead of EXTRA_CFLAGS Use the ccflag-y flag instead of EXTRA_CFLAGS because EXTRA_CFLAGS is deprecated and should now be switched. According to (documentation/kbuild/makefiles.txt). Signed-off-by: Tracey Dent Acked-by: Linus Walleij Signed-off-by: Andrew Morton Signed-off-by: Dan Williams diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile index a8a84f4..64b21f5 100644 --- a/drivers/dma/Makefile +++ b/drivers/dma/Makefile @@ -1,8 +1,8 @@ ifeq ($(CONFIG_DMADEVICES_DEBUG),y) - EXTRA_CFLAGS += -DDEBUG + ccflags-y += -DDEBUG endif ifeq ($(CONFIG_DMADEVICES_VDEBUG),y) - EXTRA_CFLAGS += -DVERBOSE_DEBUG + ccflags-y += -DVERBOSE_DEBUG endif obj-$(CONFIG_DMA_ENGINE) += dmaengine.o -- cgit v0.10.2 From 77c4d5cdb81d25a45fbdfb84dd3348121219a072 Mon Sep 17 00:00:00 2001 From: Daniel T Chen Date: Thu, 2 Dec 2010 22:45:45 -0500 Subject: ALSA: hda: Use model=lg quirk for LG P1 Express to enable playback and capture BugLink: https://launchpad.net/bugs/595482 The original reporter states that audible playback from the internal speaker is inaudible despite the hardware being properly detected. To work around this symptom, he uses the model=lg quirk to properly enable both playback, capture, and jack sense. Another user corroborates this workaround on separate hardware. Add this PCI SSID to the quirk table to enable it for further LG P1 Expresses. Reported-and-tested-by: Philip Peitsch Tested-by: nikhov Cc: [2.6.32+] Signed-off-by: Daniel T Chen Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 8fddc9d..2d7d7de 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -4595,6 +4595,7 @@ static struct snd_pci_quirk alc880_cfg_tbl[] = { SND_PCI_QUIRK(0x1734, 0x10b0, "Fujitsu", ALC880_FUJITSU), SND_PCI_QUIRK(0x1854, 0x0018, "LG LW20", ALC880_LG_LW), SND_PCI_QUIRK(0x1854, 0x003b, "LG", ALC880_LG), + SND_PCI_QUIRK(0x1854, 0x005f, "LG P1 Express", ALC880_LG), SND_PCI_QUIRK(0x1854, 0x0068, "LG w1", ALC880_LG), SND_PCI_QUIRK(0x1854, 0x0077, "LG LW25", ALC880_LG_LW), SND_PCI_QUIRK(0x19db, 0x4188, "TCL S700", ALC880_TCL_S700), -- cgit v0.10.2 From 3a253445e327d0295bbe51bcbec5f44f86b54a8c Mon Sep 17 00:00:00 2001 From: John Baboval Date: Thu, 2 Dec 2010 11:21:31 -0500 Subject: ALSA: hda - Fix ThinkPad T410[s] docking station line-out On the docking station for the Lenovo T410 and T410s, the line-out doesn't work. The trouble seems to be that it generates a plug event, but then doesn't report that the jack is connected. So automute mutes the jack when you plug something into it. The following patch (next message) fixes it. Signed-off-by: John Baboval Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index 846d1ea..e652b34 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -2116,8 +2116,8 @@ static void cxt5066_update_speaker(struct hda_codec *codec) struct conexant_spec *spec = codec->spec; unsigned int pinctl; - snd_printdd("CXT5066: update speaker, hp_present=%d\n", - spec->hp_present); + snd_printdd("CXT5066: update speaker, hp_present=%d, cur_eapd=%d\n", + spec->hp_present, spec->cur_eapd); /* Port A (HP) */ pinctl = ((spec->hp_present & 1) && spec->cur_eapd) ? PIN_HP : 0; @@ -2125,11 +2125,20 @@ static void cxt5066_update_speaker(struct hda_codec *codec) pinctl); /* Port D (HP/LO) */ - pinctl = ((spec->hp_present & 2) && spec->cur_eapd) - ? spec->port_d_mode : 0; - /* Mute if Port A is connected on Thinkpad */ - if (spec->thinkpad && (spec->hp_present & 1)) - pinctl = 0; + if (spec->dell_automute) { + /* DELL AIO Port Rule: PortA> PortD> IntSpk */ + pinctl = (!(spec->hp_present & 1) && spec->cur_eapd) + ? PIN_OUT : 0; + } else if (spec->thinkpad) { + if (spec->cur_eapd) + pinctl = spec->port_d_mode; + /* Mute dock line-out if Port A (laptop HP) is present */ + if (spec->hp_present& 1) + pinctl = 0; + } else { + pinctl = ((spec->hp_present & 2) && spec->cur_eapd) + ? spec->port_d_mode : 0; + } snd_hda_codec_write(codec, 0x1c, 0, AC_VERB_SET_PIN_WIDGET_CONTROL, pinctl); @@ -2137,14 +2146,6 @@ static void cxt5066_update_speaker(struct hda_codec *codec) pinctl = (!spec->hp_present && spec->cur_eapd) ? PIN_OUT : 0; snd_hda_codec_write(codec, 0x1f, 0, AC_VERB_SET_PIN_WIDGET_CONTROL, pinctl); - - if (spec->dell_automute) { - /* DELL AIO Port Rule: PortA > PortD > IntSpk */ - pinctl = (!(spec->hp_present & 1) && spec->cur_eapd) - ? PIN_OUT : 0; - snd_hda_codec_write(codec, 0x1c, 0, - AC_VERB_SET_PIN_WIDGET_CONTROL, pinctl); - } } /* turn on/off EAPD (+ mute HP) as a master switch */ -- cgit v0.10.2 From 47f1c6c9ffdec0c0e5a2c2709bd63c7380b325c4 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Fri, 3 Dec 2010 15:37:31 +0000 Subject: drm/i915: Clean conflicting modesetting registers upon init If we leave the registers in a conflicting state then when we attempt to teardown the active mode, we will not disable the pipes and planes in the correct order -- leaving a plane reading from a disabled pipe and possibly leading to undefined behaviour. Reported-and-tested-by: Andy Whitcroft Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=32078 Signed-off-by: Chris Wilson Cc: stable@kernel.org diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 9d3af3c..e5badad 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5238,6 +5238,55 @@ static const struct drm_crtc_funcs intel_crtc_funcs = { .page_flip = intel_crtc_page_flip, }; +static void intel_sanitize_modesetting(struct drm_device *dev, + int pipe, int plane) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + u32 reg, val; + + if (HAS_PCH_SPLIT(dev)) + return; + + /* Who knows what state these registers were left in by the BIOS or + * grub? + * + * If we leave the registers in a conflicting state (e.g. with the + * display plane reading from the other pipe than the one we intend + * to use) then when we attempt to teardown the active mode, we will + * not disable the pipes and planes in the correct order -- leaving + * a plane reading from a disabled pipe and possibly leading to + * undefined behaviour. + */ + + reg = DSPCNTR(plane); + val = I915_READ(reg); + + if ((val & DISPLAY_PLANE_ENABLE) == 0) + return; + if (!!(val & DISPPLANE_SEL_PIPE_MASK) == pipe) + return; + + /* This display plane is active and attached to the other CPU pipe. */ + pipe = !pipe; + + /* Disable the plane and wait for it to stop reading from the pipe. */ + I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE); + intel_flush_display_plane(dev, plane); + + if (IS_GEN2(dev)) + intel_wait_for_vblank(dev, pipe); + + if (pipe == 0 && (dev_priv->quirks & QUIRK_PIPEA_FORCE)) + return; + + /* Switch off the pipe. */ + reg = PIPECONF(pipe); + val = I915_READ(reg); + if (val & PIPECONF_ENABLE) { + I915_WRITE(reg, val & ~PIPECONF_ENABLE); + intel_wait_for_pipe_off(dev, pipe); + } +} static void intel_crtc_init(struct drm_device *dev, int pipe) { @@ -5289,6 +5338,8 @@ static void intel_crtc_init(struct drm_device *dev, int pipe) setup_timer(&intel_crtc->idle_timer, intel_crtc_idle_timer, (unsigned long)intel_crtc); + + intel_sanitize_modesetting(dev, intel_crtc->pipe, intel_crtc->plane); } int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, -- cgit v0.10.2 From 2e18edf75d586d9044c1f1e6b1bc8e7c26c4149f Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Fri, 3 Dec 2010 18:00:06 +0000 Subject: ARM: mini2440: Fix Kconfig to allow kernel to build The MACH_MINI2440 entry requires the backlight LED driver, but this subsystem has not been enabled and the select of LEDS_TRIGGER_BACKLIGHT alone is insufficient to enable the necessary bits of the LED driver. Add NEW_LEDS, LEDS_CLASS and LEDS_TRIGGER to the select to allow the kernel to link. This fixes the following error: drivers/built-in.o: In function `led_trigger_set': /home/ben/linux.git/drivers/leds/led-triggers.c:116: undefined reference to `led_brightness_set' Signed-off-by: Ben Dooks diff --git a/arch/arm/mach-s3c2440/Kconfig b/arch/arm/mach-s3c2440/Kconfig index ff024a6..adea6b9 100644 --- a/arch/arm/mach-s3c2440/Kconfig +++ b/arch/arm/mach-s3c2440/Kconfig @@ -178,6 +178,9 @@ config MACH_MINI2440 bool "MINI2440 development board" select CPU_S3C2440 select EEPROM_AT24 + select NEW_LEDS + select LEDS_CLASS + select LEDS_TRIGGER select LEDS_TRIGGER_BACKLIGHT select S3C_DEV_NAND select S3C_DEV_USB_HOST -- cgit v0.10.2 From 22ed1113a9adda6e193c329119a384362da01289 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Sat, 4 Dec 2010 01:01:29 +0000 Subject: drm/i915: Death to the unnecessary 64bit divide Use the hardware DDA to calculate the ratio with as much accuracy as is possible. Signed-off-by: Chris Wilson Cc: stable@kernel.org diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index e5badad..fac118b 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2714,27 +2714,19 @@ fdi_reduce_ratio(u32 *num, u32 *den) } } -#define DATA_N 0x800000 -#define LINK_N 0x80000 - static void ironlake_compute_m_n(int bits_per_pixel, int nlanes, int pixel_clock, int link_clock, struct fdi_m_n *m_n) { - u64 temp; - m_n->tu = 64; /* default size */ - temp = (u64) DATA_N * pixel_clock; - temp = div_u64(temp, link_clock); - m_n->gmch_m = div_u64(temp * bits_per_pixel, nlanes); - m_n->gmch_m >>= 3; /* convert to bytes_per_pixel */ - m_n->gmch_n = DATA_N; + /* BUG_ON(pixel_clock > INT_MAX / 36); */ + m_n->gmch_m = bits_per_pixel * pixel_clock; + m_n->gmch_n = link_clock * nlanes * 8; fdi_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n); - temp = (u64) LINK_N * pixel_clock; - m_n->link_m = div_u64(temp, link_clock); - m_n->link_n = LINK_N; + m_n->link_m = pixel_clock; + m_n->link_n = link_clock; fdi_reduce_ratio(&m_n->link_m, &m_n->link_n); } -- cgit v0.10.2 From ef61d4e6d88da80dc2b417cf8ad3c77aa94f0c8f Mon Sep 17 00:00:00 2001 From: Manoj Iyer Date: Fri, 3 Dec 2010 18:43:55 -0600 Subject: ALSA: hda - Enable jack sense for Thinkpad Edge 13 Added a quirk to cxt5066_cfg_tbl to enable jack sense for ThinkPad Edge 13. Reference: http://launchpad.net/bugs/685015 Signed-off-by: Manoj Iyer Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index e652b34..4ab5ea9 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -3110,6 +3110,7 @@ static struct snd_pci_quirk cxt5066_cfg_tbl[] = { SND_PCI_QUIRK(0x152d, 0x0833, "OLPC XO-1.5", CXT5066_OLPC_XO_1_5), SND_PCI_QUIRK(0x17aa, 0x20f2, "Lenovo T400s", CXT5066_THINKPAD), SND_PCI_QUIRK(0x17aa, 0x21b2, "Thinkpad X100e", CXT5066_IDEAPAD), + SND_PCI_QUIRK(0x17aa, 0x21c5, "Thinkpad Edge 13", CXT5066_THINKPAD), SND_PCI_QUIRK(0x17aa, 0x21b3, "Thinkpad Edge 13 (197)", CXT5066_IDEAPAD), SND_PCI_QUIRK(0x17aa, 0x21b4, "Thinkpad Edge", CXT5066_IDEAPAD), SND_PCI_QUIRK(0x17aa, 0x21c8, "Thinkpad Edge 11", CXT5066_IDEAPAD), -- cgit v0.10.2 From 49078f7d108f132582e5af46304c317b55f83948 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Sat, 4 Dec 2010 07:45:57 +0000 Subject: drm/i915: Factor in pixel-repeat in FDI M/N calculation Fixes the modesetting on the secondary panel of the Libretto W100 and presumably many more Ironlake laptops with SDVO LVDS displays. Reported-and-tested-by: Matthew Willoughby Signed-off-by: Chris Wilson Cc: stable@kernel.org diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index fac118b..d9b7092 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3710,6 +3710,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, /* FDI link */ if (HAS_PCH_SPLIT(dev)) { + int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); int lane = 0, link_bw, bpp; /* CPU eDP doesn't require FDI link, so just set DP M/N according to current link config */ @@ -3793,6 +3794,8 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, intel_crtc->fdi_lanes = lane; + if (pixel_multiplier > 1) + link_bw *= pixel_multiplier; ironlake_compute_m_n(bpp, lane, target_clock, link_bw, &m_n); } -- cgit v0.10.2 From bca364d30d63825f36a03dcacf390943d4c2cb74 Mon Sep 17 00:00:00 2001 From: Tracey Dent Date: Sat, 6 Nov 2010 17:01:37 -0400 Subject: drivers/dma/ioat: Use the ccflag-y instead of EXTRA_CFLAGS Changed Makefile to use -y instead of -objs. Following (documentation/kbuild/makefiles.txt). Signed-off-by: Tracey Dent Signed-off-by: Andrew Morton Signed-off-by: Dan Williams diff --git a/drivers/dma/ioat/Makefile b/drivers/dma/ioat/Makefile index 8997d3f..0ff7270 100644 --- a/drivers/dma/ioat/Makefile +++ b/drivers/dma/ioat/Makefile @@ -1,2 +1,2 @@ obj-$(CONFIG_INTEL_IOATDMA) += ioatdma.o -ioatdma-objs := pci.o dma.o dma_v2.o dma_v3.o dca.o +ioatdma-y := pci.o dma.o dma_v2.o dma_v3.o dca.o -- cgit v0.10.2 From a584bff5efae8c1d026e3a930e3d13a90264fafc Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Fri, 12 Nov 2010 13:37:54 -0800 Subject: drivers/dma/ppc4xx: Use printf extension %pR for struct resource Using %pR standardizes the struct resource output. Signed-off-by: Joe Perches Signed-off-by: Dan Williams diff --git a/drivers/dma/ppc4xx/adma.c b/drivers/dma/ppc4xx/adma.c index 0d58a4a..cef5845 100644 --- a/drivers/dma/ppc4xx/adma.c +++ b/drivers/dma/ppc4xx/adma.c @@ -4449,9 +4449,8 @@ static int __devinit ppc440spe_adma_probe(struct platform_device *ofdev, if (!request_mem_region(res.start, resource_size(&res), dev_driver_string(&ofdev->dev))) { - dev_err(&ofdev->dev, "failed to request memory region " - "(0x%016llx-0x%016llx)\n", - (u64)res.start, (u64)res.end); + dev_err(&ofdev->dev, "failed to request memory region %pR\n", + &res); initcode = PPC_ADMA_INIT_MEMREG; ret = -EBUSY; goto out; -- cgit v0.10.2 From d2f5c276ea4b7b7e1b953926bac9d0b148fcce4e Mon Sep 17 00:00:00 2001 From: Anatolij Gustschin Date: Mon, 22 Nov 2010 18:35:18 +0100 Subject: dmaengine: imx-sdma: fix bug in buffer descriptor initialization Currently while submitting scatterlists with more than one SG entry the DMA buffer address from the first SG entry is inserted into all initialized DMA buffer descriptors. This is due to the typo in the for_each_sg() loop where the scatterlist pointer is used for obtaining the DMA buffer address and _not_ the SG list iterator. As a result all received data will be written only into the first DMA buffer while reading. While writing the data from the first DMA buffer is send to the device multiple times. This caused the filesystem destruction on the MMC card when using DMA in mxcmmc driver. Signed-off-by: Anatolij Gustschin Acked-by: Sascha Hauer Signed-off-by: Dan Williams diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index 0834323..13d6447 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -951,7 +951,7 @@ static struct dma_async_tx_descriptor *sdma_prep_slave_sg( struct sdma_buffer_descriptor *bd = &sdmac->bd[i]; int param; - bd->buffer_addr = sgl->dma_address; + bd->buffer_addr = sg->dma_address; count = sg->length; -- cgit v0.10.2 From cf2f9c59807f173b1c6a537fde7c83c8da876e56 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Sat, 4 Dec 2010 14:53:32 -0800 Subject: intel_mid_dma: fix section mismatch warnings Rename intel_mid_dma_pci to intel_mid_dma_pci_driver to pick up the applied annotations of that suffix. Reported-by: Signed-off-by: Dan Williams diff --git a/drivers/dma/intel_mid_dma.c b/drivers/dma/intel_mid_dma.c index 4c55d45..3109bd9 100644 --- a/drivers/dma/intel_mid_dma.c +++ b/drivers/dma/intel_mid_dma.c @@ -1411,7 +1411,7 @@ static const struct dev_pm_ops intel_mid_dma_pm = { .runtime_idle = dma_runtime_idle, }; -static struct pci_driver intel_mid_dma_pci = { +static struct pci_driver intel_mid_dma_pci_driver = { .name = "Intel MID DMA", .id_table = intel_mid_dma_ids, .probe = intel_mid_dma_probe, @@ -1429,13 +1429,13 @@ static int __init intel_mid_dma_init(void) { pr_debug("INFO_MDMA: LNW DMA Driver Version %s\n", INTEL_MID_DMA_DRIVER_VERSION); - return pci_register_driver(&intel_mid_dma_pci); + return pci_register_driver(&intel_mid_dma_pci_driver); } fs_initcall(intel_mid_dma_init); static void __exit intel_mid_dma_exit(void) { - pci_unregister_driver(&intel_mid_dma_pci); + pci_unregister_driver(&intel_mid_dma_pci_driver); } module_exit(intel_mid_dma_exit); -- cgit v0.10.2 From 136711be41ec97f7f1a9c3a5e8535eb7da5fea59 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Sat, 4 Dec 2010 16:13:06 +0100 Subject: agp/intel: Fix wrong kunmap in i830_cleanup() Add a missing NULL check and fix the wrong address passed to kunmap() in i830_cleanup(). Cc: stable@kernel.org Signed-off-by: Takashi Iwai [danvet: added cc stable] Signed-off-by: Daniel Vetter Signed-off-by: Chris Wilson diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c index 9272c38..16a2847 100644 --- a/drivers/char/agp/intel-gtt.c +++ b/drivers/char/agp/intel-gtt.c @@ -812,8 +812,10 @@ static int intel_fake_agp_fetch_size(void) static void i830_cleanup(void) { - kunmap(intel_private.i8xx_page); - intel_private.i8xx_flush_page = NULL; + if (intel_private.i8xx_flush_page) { + kunmap(intel_private.i8xx_flush_page); + intel_private.i8xx_flush_page = NULL; + } __free_page(intel_private.i8xx_page); intel_private.i8xx_page = NULL; -- cgit v0.10.2 From bbf0c6b3620b3872929ef7d3c392ce436889110f Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Sun, 5 Dec 2010 11:30:40 +0100 Subject: drm/i915: announce to userspace that the bsd ring is coherent Otherwise we can't really fix the abi-braindeadness of forcing libva to manually wait for rendering when switching rings. Which in turn makes implementing hw semaphores a pointless exercise (at least for ironlake). [Also added the relaxed fencing param to explain the jump in numbering - relaxed fencing is in -next.] Signed-off-by: Daniel Vetter Signed-off-by: Chris Wilson diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 7a26f4dd..e680081 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -767,6 +767,9 @@ static int i915_getparam(struct drm_device *dev, void *data, case I915_PARAM_HAS_BLT: value = HAS_BLT(dev); break; + case I915_PARAM_HAS_COHERENT_RINGS: + value = 1; + break; default: DRM_DEBUG_DRIVER("Unknown parameter %d\n", param->param); diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h index 8c641be..a2776e2 100644 --- a/include/drm/i915_drm.h +++ b/include/drm/i915_drm.h @@ -287,6 +287,8 @@ typedef struct drm_i915_irq_wait { #define I915_PARAM_HAS_EXECBUF2 9 #define I915_PARAM_HAS_BSD 10 #define I915_PARAM_HAS_BLT 11 +#define I915_PARAM_HAS_RELAXED_FENCING 12 +#define I915_PARAM_HAS_COHERENT_RINGS 13 typedef struct drm_i915_getparam { int param; -- cgit v0.10.2 From 6fd0d56e3bc1abfb237b8824261b613e21e77bc8 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Sun, 5 Dec 2010 20:42:33 +0000 Subject: drm/i915/ringbuffer: Only print an error on the second attempt to reset head There's not much we can do here but hope for the best. However the first failure happens quite frequently and if often remedied by the second attempt to reset HEAD. So only print the error if that attempt also fails. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=19802 Reported-by: Thomas Meyer Signed-off-by: Chris Wilson Cc: stable@kernel.org diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index b83306f..89a65be 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -156,23 +156,25 @@ static int init_ring_common(struct drm_device *dev, /* G45 ring initialization fails to reset head to zero */ if (head != 0) { - DRM_ERROR("%s head not reset to zero " - "ctl %08x head %08x tail %08x start %08x\n", - ring->name, - I915_READ_CTL(ring), - I915_READ_HEAD(ring), - I915_READ_TAIL(ring), - I915_READ_START(ring)); + DRM_DEBUG_KMS("%s head not reset to zero " + "ctl %08x head %08x tail %08x start %08x\n", + ring->name, + I915_READ_CTL(ring), + I915_READ_HEAD(ring), + I915_READ_TAIL(ring), + I915_READ_START(ring)); I915_WRITE_HEAD(ring, 0); - DRM_ERROR("%s head forced to zero " - "ctl %08x head %08x tail %08x start %08x\n", - ring->name, - I915_READ_CTL(ring), - I915_READ_HEAD(ring), - I915_READ_TAIL(ring), - I915_READ_START(ring)); + if (I915_READ_HEAD(ring) & HEAD_ADDR) { + DRM_ERROR("failed to set %s head to zero " + "ctl %08x head %08x tail %08x start %08x\n", + ring->name, + I915_READ_CTL(ring), + I915_READ_HEAD(ring), + I915_READ_TAIL(ring), + I915_READ_START(ring)); + } } I915_WRITE_CTL(ring, -- cgit v0.10.2 From 2a1292fd4cf1558b4a60781227d503c9111d9075 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Sun, 5 Dec 2010 19:21:18 +0000 Subject: drm/i915/lvds: Always restore panel-fitter when enabling the LVDS Linus Torvalds pointed out that our code was unbalanced when powering on the panel with respect to the power off sequence in that we were failing to restore the panel-fitter. The consequence of this would be that across a simple DPMS off/on for a non-native mode, without an intervening modeset, the panel fitter would remain disabled and the output would shift on the panel. Reported-by: Linus Torvalds Signed-off-by: Chris Wilson diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index f79327f..25bcedf 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -68,7 +68,7 @@ static struct intel_lvds *intel_attached_lvds(struct drm_connector *connector) /** * Sets the power state for the panel. */ -static void intel_lvds_set_power(struct intel_lvds *intel_lvds, bool on) +static void intel_lvds_enable(struct intel_lvds *intel_lvds) { struct drm_device *dev = intel_lvds->base.base.dev; struct drm_i915_private *dev_priv = dev->dev_private; @@ -82,26 +82,61 @@ static void intel_lvds_set_power(struct intel_lvds *intel_lvds, bool on) lvds_reg = LVDS; } - if (on) { - I915_WRITE(lvds_reg, I915_READ(lvds_reg) | LVDS_PORT_EN); - I915_WRITE(ctl_reg, I915_READ(ctl_reg) | POWER_TARGET_ON); - intel_panel_set_backlight(dev, dev_priv->backlight_level); - } else { - dev_priv->backlight_level = intel_panel_get_backlight(dev); - - intel_panel_set_backlight(dev, 0); - I915_WRITE(ctl_reg, I915_READ(ctl_reg) & ~POWER_TARGET_ON); + I915_WRITE(lvds_reg, I915_READ(lvds_reg) | LVDS_PORT_EN); - if (intel_lvds->pfit_control) { - if (wait_for((I915_READ(PP_STATUS) & PP_ON) == 0, 1000)) - DRM_ERROR("timed out waiting for panel to power off\n"); - I915_WRITE(PFIT_CONTROL, 0); - intel_lvds->pfit_control = 0; + if (intel_lvds->pfit_dirty) { + /* + * Enable automatic panel scaling so that non-native modes + * fill the screen. The panel fitter should only be + * adjusted whilst the pipe is disabled, according to + * register description and PRM. + */ + DRM_DEBUG_KMS("applying panel-fitter: %x, %x\n", + intel_lvds->pfit_control, + intel_lvds->pfit_pgm_ratios); + if (wait_for((I915_READ(PP_STATUS) & PP_ON) == 0, 1000)) { + DRM_ERROR("timed out waiting for panel to power off\n"); + } else { + I915_WRITE(PFIT_PGM_RATIOS, intel_lvds->pfit_pgm_ratios); + I915_WRITE(PFIT_CONTROL, intel_lvds->pfit_control); intel_lvds->pfit_dirty = false; } + } + + I915_WRITE(ctl_reg, I915_READ(ctl_reg) | POWER_TARGET_ON); + POSTING_READ(lvds_reg); + + intel_panel_set_backlight(dev, dev_priv->backlight_level); +} - I915_WRITE(lvds_reg, I915_READ(lvds_reg) & ~LVDS_PORT_EN); +static void intel_lvds_disable(struct intel_lvds *intel_lvds) +{ + struct drm_device *dev = intel_lvds->base.base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + u32 ctl_reg, lvds_reg; + + if (HAS_PCH_SPLIT(dev)) { + ctl_reg = PCH_PP_CONTROL; + lvds_reg = PCH_LVDS; + } else { + ctl_reg = PP_CONTROL; + lvds_reg = LVDS; + } + + dev_priv->backlight_level = intel_panel_get_backlight(dev); + intel_panel_set_backlight(dev, 0); + + I915_WRITE(ctl_reg, I915_READ(ctl_reg) & ~POWER_TARGET_ON); + + if (intel_lvds->pfit_control) { + if (wait_for((I915_READ(PP_STATUS) & PP_ON) == 0, 1000)) + DRM_ERROR("timed out waiting for panel to power off\n"); + + I915_WRITE(PFIT_CONTROL, 0); + intel_lvds->pfit_dirty = true; } + + I915_WRITE(lvds_reg, I915_READ(lvds_reg) & ~LVDS_PORT_EN); POSTING_READ(lvds_reg); } @@ -110,9 +145,9 @@ static void intel_lvds_dpms(struct drm_encoder *encoder, int mode) struct intel_lvds *intel_lvds = to_intel_lvds(encoder); if (mode == DRM_MODE_DPMS_ON) - intel_lvds_set_power(intel_lvds, true); + intel_lvds_enable(intel_lvds); else - intel_lvds_set_power(intel_lvds, false); + intel_lvds_disable(intel_lvds); /* XXX: We never power down the LVDS pairs. */ } @@ -411,43 +446,18 @@ static void intel_lvds_commit(struct drm_encoder *encoder) /* Always do a full power on as we do not know what state * we were left in. */ - intel_lvds_set_power(intel_lvds, true); + intel_lvds_enable(intel_lvds); } static void intel_lvds_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { - struct drm_device *dev = encoder->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_lvds *intel_lvds = to_intel_lvds(encoder); - /* * The LVDS pin pair will already have been turned on in the * intel_crtc_mode_set since it has a large impact on the DPLL * settings. */ - - if (HAS_PCH_SPLIT(dev)) - return; - - if (!intel_lvds->pfit_dirty) - return; - - /* - * Enable automatic panel scaling so that non-native modes fill the - * screen. Should be enabled before the pipe is enabled, according to - * register description and PRM. - */ - DRM_DEBUG_KMS("applying panel-fitter: %x, %x\n", - intel_lvds->pfit_control, - intel_lvds->pfit_pgm_ratios); - if (wait_for((I915_READ(PP_STATUS) & PP_ON) == 0, 1000)) - DRM_ERROR("timed out waiting for panel to power off\n"); - - I915_WRITE(PFIT_PGM_RATIOS, intel_lvds->pfit_pgm_ratios); - I915_WRITE(PFIT_CONTROL, intel_lvds->pfit_control); - intel_lvds->pfit_dirty = false; } /** -- cgit v0.10.2 From dd5a089edfa51a74692604b4b427953d8e16bc35 Mon Sep 17 00:00:00 2001 From: Daniel T Chen Date: Sun, 5 Dec 2010 08:43:14 -0500 Subject: ALSA: hda: Use position_fix=1 for Acer Aspire 5538 to enable capture on internal mic BugLink: https://launchpad.net/bugs/685161 The reporter of the bug states that he must use position_fix=1 to enable capture for the internal microphone, so set it for his machine's PCI SSID. Verified using 2.6.35 and the 2010-12-04 alsa-driver build. Reported-and-tested-by: Ralph Wabel Cc: Signed-off-by: Daniel T Chen Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 21aa9b0..b030c8e 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -2296,6 +2296,7 @@ static int azx_dev_free(struct snd_device *device) */ static struct snd_pci_quirk position_fix_list[] __devinitdata = { SND_PCI_QUIRK(0x1025, 0x009f, "Acer Aspire 5110", POS_FIX_LPIB), + SND_PCI_QUIRK(0x1025, 0x026f, "Acer Aspire 5538", POS_FIX_LPIB), SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB), SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB), SND_PCI_QUIRK(0x1028, 0x01f6, "Dell Latitude 131L", POS_FIX_LPIB), -- cgit v0.10.2 From 3fcc0afbb9c93f3599ba03273e59915670b6c2c2 Mon Sep 17 00:00:00 2001 From: Uk Kim Date: Sun, 5 Dec 2010 17:32:16 +0900 Subject: ASoC: Fix off by one error in WM8994 EQ register bank size Signed-off-by: Uk Kim Acked-by: Liam Girdwood Signed-off-by: Mark Brown Cc: stable@kernel.org diff --git a/include/linux/mfd/wm8994/pdata.h b/include/linux/mfd/wm8994/pdata.h index 5c51f36..add8a1b 100644 --- a/include/linux/mfd/wm8994/pdata.h +++ b/include/linux/mfd/wm8994/pdata.h @@ -29,7 +29,7 @@ struct wm8994_ldo_pdata { #define WM8994_CONFIGURE_GPIO 0x8000 #define WM8994_DRC_REGS 5 -#define WM8994_EQ_REGS 19 +#define WM8994_EQ_REGS 20 /** * DRC configurations are specified with a label and a set of register -- cgit v0.10.2 From ed8cc471d75365f8590c76f580def899d58028c0 Mon Sep 17 00:00:00 2001 From: Uk Kim Date: Sun, 5 Dec 2010 17:26:07 +0900 Subject: ASoC: Fix swap of left and right channels for WM8993/4 speaker boost gain SPKOUTL_BOOST start from third bit, SPKOUTLR_BOOST start from 0 bit. Signed-off-by: Uk Kim Acked-by: Liam Girdwood Signed-off-by: Mark Brown Cc: stable@kernel.org diff --git a/sound/soc/codecs/wm_hubs.c b/sound/soc/codecs/wm_hubs.c index 19ca782..0e24092 100644 --- a/sound/soc/codecs/wm_hubs.c +++ b/sound/soc/codecs/wm_hubs.c @@ -293,7 +293,7 @@ SOC_DOUBLE_R("Speaker Switch", SOC_DOUBLE_R("Speaker ZC Switch", WM8993_SPEAKER_VOLUME_LEFT, WM8993_SPEAKER_VOLUME_RIGHT, 7, 1, 0), -SOC_DOUBLE_TLV("Speaker Boost Volume", WM8993_SPKOUT_BOOST, 0, 3, 7, 0, +SOC_DOUBLE_TLV("Speaker Boost Volume", WM8993_SPKOUT_BOOST, 3, 0, 7, 0, spkboost_tlv), SOC_ENUM("Speaker Reference", speaker_ref), SOC_ENUM("Speaker Mode", speaker_mode), -- cgit v0.10.2 From 1dcb4f38e5bc28dfce0f8c7eef184a090b03bfc7 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 6 Dec 2010 16:48:03 +0800 Subject: ASoC: Hold client_mutex while calling snd_soc_instantiate_cards() As the comments of snd_soc_instantiate_cards() said, snd_soc_instantiate_cards() must be called with client_mutex. Signed-off-by: Axel Lin Signed-off-by: Mark Brown diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 441285a..02ae7be 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -3072,7 +3072,9 @@ int snd_soc_register_dais(struct device *dev, pr_debug("Registered DAI '%s'\n", dai->name); } + mutex_lock(&client_mutex); snd_soc_instantiate_cards(); + mutex_unlock(&client_mutex); return 0; err: -- cgit v0.10.2 From 18483b81ee7e70ee68d4b18be618be5cfcc0b290 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Mon, 6 Dec 2010 15:13:38 -0200 Subject: perf record: Fix eternal wait for stillborn child When execvp fails to find the specified command on the path we won't get SIGCHLD, so send a SIGUSR1 and exit right away. Current situation would require a SIGINT performed by the user and would produce meaningless summary. Now: [acme@emilia linux]$ ./foo -bash: ./foo: No such file or directory [acme@emilia linux]$ perf record ./foo ./foo: No such file or directory [acme@emilia linux]$ Acked-by: Thomas Gleixner Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Tom Zanussi Cc: Thomas Gleixner LKML-Reference: Signed-off-by: Arnaldo Carvalho de Melo diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index e2c2de2..564491f 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -197,7 +197,7 @@ static void sig_atexit(void) if (child_pid > 0) kill(child_pid, SIGTERM); - if (signr == -1) + if (signr == -1 || signr == SIGUSR1) return; signal(signr, SIG_DFL); @@ -515,6 +515,7 @@ static int __cmd_record(int argc, const char **argv) atexit(sig_atexit); signal(SIGCHLD, sig_handler); signal(SIGINT, sig_handler); + signal(SIGUSR1, sig_handler); if (forks && (pipe(child_ready_pipe) < 0 || pipe(go_pipe) < 0)) { perror("failed to create pipes"); @@ -606,6 +607,7 @@ static int __cmd_record(int argc, const char **argv) execvp(argv[0], (char **)argv); perror(argv[0]); + kill(getppid(), SIGUSR1); exit(-1); } @@ -762,7 +764,7 @@ static int __cmd_record(int argc, const char **argv) } } - if (quiet) + if (quiet || signr == SIGUSR1) return 0; fprintf(stderr, "[ perf record: Woken up %ld times to write data ]\n", waking); -- cgit v0.10.2 From 46bcf14f44d8f31ecfdc8b6708ec15a3b33316d9 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 6 Dec 2010 09:29:43 -0800 Subject: filter: fix sk_filter rcu handling Pavel Emelyanov tried to fix a race between sk_filter_(de|at)tach and sk_clone() in commit 47e958eac280c263397 Problem is we can have several clones sharing a common sk_filter, and these clones might want to sk_filter_attach() their own filters at the same time, and can overwrite old_filter->rcu, corrupting RCU queues. We can not use filter->rcu without being sure no other thread could do the same thing. Switch code to a more conventional ref-counting technique : Do the atomic decrement immediately and queue one rcu call back when last reference is released. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/include/net/sock.h b/include/net/sock.h index a6338d0..659d968d9 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1155,6 +1155,8 @@ extern void sk_common_release(struct sock *sk); /* Initialise core socket variables */ extern void sock_init_data(struct socket *sock, struct sock *sk); +extern void sk_filter_release_rcu(struct rcu_head *rcu); + /** * sk_filter_release - release a socket filter * @fp: filter to remove @@ -1165,7 +1167,7 @@ extern void sock_init_data(struct socket *sock, struct sock *sk); static inline void sk_filter_release(struct sk_filter *fp) { if (atomic_dec_and_test(&fp->refcnt)) - kfree(fp); + call_rcu_bh(&fp->rcu, sk_filter_release_rcu); } static inline void sk_filter_uncharge(struct sock *sk, struct sk_filter *fp) diff --git a/net/core/filter.c b/net/core/filter.c index c1ee800..ae21a0d 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -589,23 +589,16 @@ int sk_chk_filter(struct sock_filter *filter, int flen) EXPORT_SYMBOL(sk_chk_filter); /** - * sk_filter_rcu_release - Release a socket filter by rcu_head + * sk_filter_release_rcu - Release a socket filter by rcu_head * @rcu: rcu_head that contains the sk_filter to free */ -static void sk_filter_rcu_release(struct rcu_head *rcu) +void sk_filter_release_rcu(struct rcu_head *rcu) { struct sk_filter *fp = container_of(rcu, struct sk_filter, rcu); - sk_filter_release(fp); -} - -static void sk_filter_delayed_uncharge(struct sock *sk, struct sk_filter *fp) -{ - unsigned int size = sk_filter_len(fp); - - atomic_sub(size, &sk->sk_omem_alloc); - call_rcu_bh(&fp->rcu, sk_filter_rcu_release); + kfree(fp); } +EXPORT_SYMBOL(sk_filter_release_rcu); /** * sk_attach_filter - attach a socket filter @@ -649,7 +642,7 @@ int sk_attach_filter(struct sock_fprog *fprog, struct sock *sk) rcu_assign_pointer(sk->sk_filter, fp); if (old_fp) - sk_filter_delayed_uncharge(sk, old_fp); + sk_filter_uncharge(sk, old_fp); return 0; } EXPORT_SYMBOL_GPL(sk_attach_filter); @@ -663,7 +656,7 @@ int sk_detach_filter(struct sock *sk) sock_owned_by_user(sk)); if (filter) { rcu_assign_pointer(sk->sk_filter, NULL); - sk_filter_delayed_uncharge(sk, filter); + sk_filter_uncharge(sk, filter); ret = 0; } return ret; -- cgit v0.10.2 From 1cd275f609ba46c8cae3ee77e499c54a0d13a983 Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Mon, 6 Dec 2010 09:45:22 -0800 Subject: ceph: fix ioctl magic The ioctl magic was inadvertently changed in 571dba52. Signed-off-by: Sage Weil diff --git a/fs/ceph/ioctl.h b/fs/ceph/ioctl.h index a6ce54e..52e8fd7 100644 --- a/fs/ceph/ioctl.h +++ b/fs/ceph/ioctl.h @@ -4,7 +4,7 @@ #include #include -#define CEPH_IOCTL_MAGIC 0x98 +#define CEPH_IOCTL_MAGIC 0x97 /* just use u64 to align sanely on all archs */ struct ceph_ioctl_layout { -- cgit v0.10.2 From 79df1baeec29022e4181f2964187b88661ef5517 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Mon, 6 Dec 2010 12:52:08 -0500 Subject: cifs: fix use of CONFIG_CIFS_ACL Some of the code under CONFIG_CIFS_ACL is dependent upon code under CONFIG_CIFS_EXPERIMENTAL, but the Kconfig options don't reflect that dependency. Move more of the ACL code out from under CONFIG_CIFS_EXPERIMENTAL and under CONFIG_CIFS_ACL. Also move find_readable_file out from other any sort of Kconfig option and make it a function normally compiled in. Reported-and-Acked-by: Randy Dunlap Signed-off-by: Jeff Layton Signed-off-by: Steve French diff --git a/fs/cifs/Makefile b/fs/cifs/Makefile index adefa60..43b19dd 100644 --- a/fs/cifs/Makefile +++ b/fs/cifs/Makefile @@ -6,7 +6,9 @@ obj-$(CONFIG_CIFS) += cifs.o cifs-y := cifsfs.o cifssmb.o cifs_debug.o connect.o dir.o file.o inode.o \ link.o misc.o netmisc.o smbdes.o smbencrypt.o transport.o asn1.o \ md4.o md5.o cifs_unicode.o nterr.o xattr.o cifsencrypt.o \ - readdir.o ioctl.o sess.o export.o cifsacl.o + readdir.o ioctl.o sess.o export.o + +cifs-$(CONFIG_CIFS_ACL) += cifsacl.o cifs-$(CONFIG_CIFS_UPCALL) += cifs_spnego.o diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c index c6ebea0..a437ec3 100644 --- a/fs/cifs/cifsacl.c +++ b/fs/cifs/cifsacl.c @@ -30,8 +30,6 @@ #include "cifs_debug.h" -#ifdef CONFIG_CIFS_EXPERIMENTAL - static struct cifs_wksid wksidarr[NUM_WK_SIDS] = { {{1, 0, {0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, 0} }, "null user"}, {{1, 1, {0, 0, 0, 0, 0, 1}, {0, 0, 0, 0, 0} }, "nobody"}, @@ -774,4 +772,3 @@ int mode_to_cifs_acl(struct inode *inode, const char *path, __u64 nmode) return rc; } -#endif /* CONFIG_CIFS_EXPERIMENTAL */ diff --git a/fs/cifs/cifsacl.h b/fs/cifs/cifsacl.h index 6c8096c..c4ae7d0 100644 --- a/fs/cifs/cifsacl.h +++ b/fs/cifs/cifsacl.h @@ -74,11 +74,7 @@ struct cifs_wksid { char sidname[SIDNAMELENGTH]; } __attribute__((packed)); -#ifdef CONFIG_CIFS_EXPERIMENTAL - extern int match_sid(struct cifs_sid *); extern int compare_sids(const struct cifs_sid *, const struct cifs_sid *); -#endif /* CONFIG_CIFS_EXPERIMENTAL */ - #endif /* _CIFSACL_H */ diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index db961dc..5523047 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -79,9 +79,7 @@ extern bool is_valid_oplock_break(struct smb_hdr *smb, struct TCP_Server_Info *); extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof); extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool); -#ifdef CONFIG_CIFS_EXPERIMENTAL extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool); -#endif extern unsigned int smbCalcSize(struct smb_hdr *ptr); extern unsigned int smbCalcSize_LE(struct smb_hdr *ptr); extern int decode_negTokenInit(unsigned char *security_blob, int length, diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 2f2632b..67acfb3 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -2478,95 +2478,6 @@ querySymLinkRetry: } #ifdef CONFIG_CIFS_EXPERIMENTAL -/* Initialize NT TRANSACT SMB into small smb request buffer. - This assumes that all NT TRANSACTS that we init here have - total parm and data under about 400 bytes (to fit in small cifs - buffer size), which is the case so far, it easily fits. NB: - Setup words themselves and ByteCount - MaxSetupCount (size of returned setup area) and - MaxParameterCount (returned parms size) must be set by caller */ -static int -smb_init_nttransact(const __u16 sub_command, const int setup_count, - const int parm_len, struct cifsTconInfo *tcon, - void **ret_buf) -{ - int rc; - __u32 temp_offset; - struct smb_com_ntransact_req *pSMB; - - rc = small_smb_init(SMB_COM_NT_TRANSACT, 19 + setup_count, tcon, - (void **)&pSMB); - if (rc) - return rc; - *ret_buf = (void *)pSMB; - pSMB->Reserved = 0; - pSMB->TotalParameterCount = cpu_to_le32(parm_len); - pSMB->TotalDataCount = 0; - pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - - MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); - pSMB->ParameterCount = pSMB->TotalParameterCount; - pSMB->DataCount = pSMB->TotalDataCount; - temp_offset = offsetof(struct smb_com_ntransact_req, Parms) + - (setup_count * 2) - 4 /* for rfc1001 length itself */; - pSMB->ParameterOffset = cpu_to_le32(temp_offset); - pSMB->DataOffset = cpu_to_le32(temp_offset + parm_len); - pSMB->SetupCount = setup_count; /* no need to le convert byte fields */ - pSMB->SubCommand = cpu_to_le16(sub_command); - return 0; -} - -static int -validate_ntransact(char *buf, char **ppparm, char **ppdata, - __u32 *pparmlen, __u32 *pdatalen) -{ - char *end_of_smb; - __u32 data_count, data_offset, parm_count, parm_offset; - struct smb_com_ntransact_rsp *pSMBr; - - *pdatalen = 0; - *pparmlen = 0; - - if (buf == NULL) - return -EINVAL; - - pSMBr = (struct smb_com_ntransact_rsp *)buf; - - /* ByteCount was converted from little endian in SendReceive */ - end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount + - (char *)&pSMBr->ByteCount; - - data_offset = le32_to_cpu(pSMBr->DataOffset); - data_count = le32_to_cpu(pSMBr->DataCount); - parm_offset = le32_to_cpu(pSMBr->ParameterOffset); - parm_count = le32_to_cpu(pSMBr->ParameterCount); - - *ppparm = (char *)&pSMBr->hdr.Protocol + parm_offset; - *ppdata = (char *)&pSMBr->hdr.Protocol + data_offset; - - /* should we also check that parm and data areas do not overlap? */ - if (*ppparm > end_of_smb) { - cFYI(1, "parms start after end of smb"); - return -EINVAL; - } else if (parm_count + *ppparm > end_of_smb) { - cFYI(1, "parm end after end of smb"); - return -EINVAL; - } else if (*ppdata > end_of_smb) { - cFYI(1, "data starts after end of smb"); - return -EINVAL; - } else if (data_count + *ppdata > end_of_smb) { - cFYI(1, "data %p + count %d (%p) past smb end %p start %p", - *ppdata, data_count, (data_count + *ppdata), - end_of_smb, pSMBr); - return -EINVAL; - } else if (parm_count + data_count > pSMBr->ByteCount) { - cFYI(1, "parm count and data count larger than SMB"); - return -EINVAL; - } - *pdatalen = data_count; - *pparmlen = parm_count; - return 0; -} - int CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon, const unsigned char *searchName, @@ -3056,7 +2967,97 @@ GetExtAttrOut: #endif /* CONFIG_POSIX */ -#ifdef CONFIG_CIFS_EXPERIMENTAL +#ifdef CONFIG_CIFS_ACL +/* + * Initialize NT TRANSACT SMB into small smb request buffer. This assumes that + * all NT TRANSACTS that we init here have total parm and data under about 400 + * bytes (to fit in small cifs buffer size), which is the case so far, it + * easily fits. NB: Setup words themselves and ByteCount MaxSetupCount (size of + * returned setup area) and MaxParameterCount (returned parms size) must be set + * by caller + */ +static int +smb_init_nttransact(const __u16 sub_command, const int setup_count, + const int parm_len, struct cifsTconInfo *tcon, + void **ret_buf) +{ + int rc; + __u32 temp_offset; + struct smb_com_ntransact_req *pSMB; + + rc = small_smb_init(SMB_COM_NT_TRANSACT, 19 + setup_count, tcon, + (void **)&pSMB); + if (rc) + return rc; + *ret_buf = (void *)pSMB; + pSMB->Reserved = 0; + pSMB->TotalParameterCount = cpu_to_le32(parm_len); + pSMB->TotalDataCount = 0; + pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - + MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); + pSMB->ParameterCount = pSMB->TotalParameterCount; + pSMB->DataCount = pSMB->TotalDataCount; + temp_offset = offsetof(struct smb_com_ntransact_req, Parms) + + (setup_count * 2) - 4 /* for rfc1001 length itself */; + pSMB->ParameterOffset = cpu_to_le32(temp_offset); + pSMB->DataOffset = cpu_to_le32(temp_offset + parm_len); + pSMB->SetupCount = setup_count; /* no need to le convert byte fields */ + pSMB->SubCommand = cpu_to_le16(sub_command); + return 0; +} + +static int +validate_ntransact(char *buf, char **ppparm, char **ppdata, + __u32 *pparmlen, __u32 *pdatalen) +{ + char *end_of_smb; + __u32 data_count, data_offset, parm_count, parm_offset; + struct smb_com_ntransact_rsp *pSMBr; + + *pdatalen = 0; + *pparmlen = 0; + + if (buf == NULL) + return -EINVAL; + + pSMBr = (struct smb_com_ntransact_rsp *)buf; + + /* ByteCount was converted from little endian in SendReceive */ + end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount + + (char *)&pSMBr->ByteCount; + + data_offset = le32_to_cpu(pSMBr->DataOffset); + data_count = le32_to_cpu(pSMBr->DataCount); + parm_offset = le32_to_cpu(pSMBr->ParameterOffset); + parm_count = le32_to_cpu(pSMBr->ParameterCount); + + *ppparm = (char *)&pSMBr->hdr.Protocol + parm_offset; + *ppdata = (char *)&pSMBr->hdr.Protocol + data_offset; + + /* should we also check that parm and data areas do not overlap? */ + if (*ppparm > end_of_smb) { + cFYI(1, "parms start after end of smb"); + return -EINVAL; + } else if (parm_count + *ppparm > end_of_smb) { + cFYI(1, "parm end after end of smb"); + return -EINVAL; + } else if (*ppdata > end_of_smb) { + cFYI(1, "data starts after end of smb"); + return -EINVAL; + } else if (data_count + *ppdata > end_of_smb) { + cFYI(1, "data %p + count %d (%p) past smb end %p start %p", + *ppdata, data_count, (data_count + *ppdata), + end_of_smb, pSMBr); + return -EINVAL; + } else if (parm_count + data_count > pSMBr->ByteCount) { + cFYI(1, "parm count and data count larger than SMB"); + return -EINVAL; + } + *pdatalen = data_count; + *pparmlen = parm_count; + return 0; +} + /* Get Security Descriptor (by handle) from remote server for a file or dir */ int CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, @@ -3214,7 +3215,7 @@ setCifsAclRetry: return (rc); } -#endif /* CONFIG_CIFS_EXPERIMENTAL */ +#endif /* CONFIG_CIFS_ACL */ /* Legacy Query Path Information call for lookup to old servers such as Win9x/WinME */ diff --git a/fs/cifs/file.c b/fs/cifs/file.c index b857ce5..5a28660 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -1108,7 +1108,6 @@ static ssize_t cifs_write(struct cifsFileInfo *open_file, return total_written; } -#ifdef CONFIG_CIFS_EXPERIMENTAL struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *cifs_inode, bool fsuid_only) { @@ -1142,7 +1141,6 @@ struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *cifs_inode, spin_unlock(&cifs_file_list_lock); return NULL; } -#endif struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *cifs_inode, bool fsuid_only) diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index bb5ca48..aa48521 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -686,7 +686,7 @@ int cifs_get_inode_info(struct inode **pinode, cFYI(1, "cifs_sfu_type failed: %d", tmprc); } -#ifdef CONFIG_CIFS_EXPERIMENTAL +#ifdef CONFIG_CIFS_ACL /* fill in 0777 bits from ACL */ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) { rc = cifs_acl_to_fattr(cifs_sb, &fattr, *pinode, full_path, @@ -697,7 +697,7 @@ int cifs_get_inode_info(struct inode **pinode, goto cgii_exit; } } -#endif +#endif /* CONFIG_CIFS_ACL */ /* fill in remaining high mode bits e.g. SUID, VTX */ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) @@ -2122,7 +2122,7 @@ cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs) if (attrs->ia_valid & ATTR_MODE) { rc = 0; -#ifdef CONFIG_CIFS_EXPERIMENTAL +#ifdef CONFIG_CIFS_ACL if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) { rc = mode_to_cifs_acl(inode, full_path, mode); if (rc) { @@ -2131,7 +2131,7 @@ cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs) goto cifs_setattr_exit; } } else -#endif +#endif /* CONFIG_CIFS_ACL */ if (((mode & S_IWUGO) == 0) && (cifsInode->cifsAttrs & ATTR_READONLY) == 0) { -- cgit v0.10.2 From b8eb3a1046f68a5b8f284830d971c62688cd606b Mon Sep 17 00:00:00 2001 From: Don Skidmore Date: Wed, 1 Dec 2010 20:54:53 +0000 Subject: ixgbe: fix possible NULL pointer deference in shutdown path After freeing the rings we were not zeroing out the ring count values. This patch now clears these counts correctly. Reported-by: Yinghai Lu Signed-off-by: Don Skidmore Tested-by: Stephen Ko Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index fbad4d8..eee0b29 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -4771,6 +4771,9 @@ void ixgbe_clear_interrupt_scheme(struct ixgbe_adapter *adapter) adapter->rx_ring[i] = NULL; } + adapter->num_tx_queues = 0; + adapter->num_rx_queues = 0; + ixgbe_free_q_vectors(adapter); ixgbe_reset_interrupt_capability(adapter); } -- cgit v0.10.2 From 8b14d7b22c61f17ccb869e0047d9df6dd9f50a9f Mon Sep 17 00:00:00 2001 From: Thadeu Lima de Souza Cascardo Date: Sun, 28 Nov 2010 19:46:50 -0200 Subject: wmi: use memcmp instead of strncmp to compare GUIDs While looking for the duplicates in /sys/class/wmi/, I couldn't find them. The code that looks for duplicates uses strncmp in a binary GUID, which may contain zero bytes. The right function is memcmp, which is also used in another section of wmi code. It was finding 49142400-C6A3-40FA-BADB-8A2652834100 as a duplicate of 39142400-C6A3-40FA-BADB-8A2652834100. Since the first byte is the fourth printed, they were found as equal by strncmp. Signed-off-by: Thadeu Lima de Souza Cascardo Signed-off-by: Matthew Garrett Cc: stable@kernel.org diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c index 104b77c..aecd9a9 100644 --- a/drivers/platform/x86/wmi.c +++ b/drivers/platform/x86/wmi.c @@ -755,7 +755,7 @@ static bool guid_already_parsed(const char *guid_string) struct wmi_block *wblock; list_for_each_entry(wblock, &wmi_block_list, list) - if (strncmp(wblock->gblock.guid, guid_string, 16) == 0) + if (memcmp(wblock->gblock.guid, guid_string, 16) == 0) return true; return false; -- cgit v0.10.2 From 884639996814585ef7079daa9e03a1eb562e235c Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Mon, 22 Nov 2010 15:31:03 -0500 Subject: cifs: remove Local_System_Name ...this string is zeroed out and nothing ever changes it. Signed-off-by: Jeff Layton Signed-off-by: Steve French diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 56a4b75..3936aa7 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -937,7 +937,6 @@ init_cifs(void) GlobalCurrentXid = 0; GlobalTotalActiveXid = 0; GlobalMaxActiveXid = 0; - memset(Local_System_Name, 0, 15); spin_lock_init(&cifs_tcp_ses_lock); spin_lock_init(&cifs_file_list_lock); spin_lock_init(&GlobalMid_Lock); diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 94ccfac..7136c0c 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -756,8 +756,6 @@ GLOBAL_EXTERN unsigned int GlobalTotalActiveXid; /* prot by GlobalMid_Sem */ GLOBAL_EXTERN unsigned int GlobalMaxActiveXid; /* prot by GlobalMid_Sem */ GLOBAL_EXTERN spinlock_t GlobalMid_Lock; /* protects above & list operations */ /* on midQ entries */ -GLOBAL_EXTERN char Local_System_Name[15]; - /* * Global counters, updated atomically */ diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index bb17ee2..53f9c31 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -807,23 +807,20 @@ cifs_parse_mount_options(char *options, const char *devname, short int override_gid = -1; bool uid_specified = false; bool gid_specified = false; + char *nodename = utsname()->nodename; separator[0] = ','; separator[1] = 0; - if (Local_System_Name[0] != 0) - memcpy(vol->source_rfc1001_name, Local_System_Name, 15); - else { - char *nodename = utsname()->nodename; - int n = strnlen(nodename, 15); - memset(vol->source_rfc1001_name, 0x20, 15); - for (i = 0; i < n; i++) { - /* does not have to be perfect mapping since field is - informational, only used for servers that do not support - port 445 and it can be overridden at mount time */ - vol->source_rfc1001_name[i] = toupper(nodename[i]); - } - } + /* + * does not have to be perfect mapping since field is + * informational, only used for servers that do not support + * port 445 and it can be overridden at mount time + */ + memset(vol->source_rfc1001_name, 0x20, 15); + for (i = 0; i < strnlen(nodename, 15); i++) + vol->source_rfc1001_name[i] = toupper(nodename[i]); + vol->source_rfc1001_name[15] = 0; /* null target name indicates to use *SMBSERVR default called name if we end up sending RFC1001 session initialize */ -- cgit v0.10.2 From f811036476d7c8a9b594ebcdcf481bdbe497eb13 Mon Sep 17 00:00:00 2001 From: Ohad Ben-Cohen Date: Fri, 26 Nov 2010 23:59:24 +0000 Subject: omap: zoom: wl1271 slot is MMC_CAP_POWER_OFF_CARD This patch complements ed919b0 "mmc: sdio: fix runtime PM anomalies by introducing MMC_CAP_POWER_OFF_CARD" by declaring MMC_CAP_POWER_OFF_CARD on the ZOOM's wl1271 mmc slot. This is required in order not to break runtime PM support for the wl1271 sdio driver. Signed-off-by: Ohad Ben-Cohen Signed-off-by: Chris Ball Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap2/board-zoom-peripherals.c b/arch/arm/mach-omap2/board-zoom-peripherals.c index 86c9b21..9db9203 100644 --- a/arch/arm/mach-omap2/board-zoom-peripherals.c +++ b/arch/arm/mach-omap2/board-zoom-peripherals.c @@ -216,7 +216,7 @@ static struct omap2_hsmmc_info mmc[] __initdata = { { .name = "wl1271", .mmc = 3, - .caps = MMC_CAP_4_BIT_DATA, + .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD, .gpio_wp = -EINVAL, .gpio_cd = -EINVAL, .nonremovable = true, -- cgit v0.10.2 From 859158bfab7e72af440622fb9731bcaef4e7d6dc Mon Sep 17 00:00:00 2001 From: Sukumar Ghorai Date: Fri, 19 Nov 2010 14:45:26 +0000 Subject: omap: nand: remove hardware ECC as default Commit 2c01946c6b9ebaa5a89710bc42ca224a7f52f227 (omap3 nand: cleanup virtual address usages) wrongly enabled CONFIG_MTD_NAND_OMAP_HWECC which breaks boards like beagle and pandora that use software ECC for write. Boards like beagle and pandora uses sw ecc for write (e.g. binary flushed from u-boot) and read from kernel. Signed-off-by: Sukumar Ghorai Acked-by: David Woodhouse [tony@atomide.com: updated comments] Signed-off-by: Tony Lindgren diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c index cd41c58..15682ec 100644 --- a/drivers/mtd/nand/omap2.c +++ b/drivers/mtd/nand/omap2.c @@ -7,7 +7,6 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ -#define CONFIG_MTD_NAND_OMAP_HWECC #include #include -- cgit v0.10.2 From cb9675f3282f5565cc9e3698cc847355c1194871 Mon Sep 17 00:00:00 2001 From: Vasiliy Kulikov Date: Fri, 26 Nov 2010 17:06:02 +0000 Subject: arm: plat-omap: counter_32k: use IS_ERR() instead of NULL check clk_get() returns ERR_PTR() on error, not NULL. Signed-off-by: Vasiliy Kulikov Acked-by: Kevin Hilman [tony@atomide.com: updated to include err.h to compile on omap1] Signed-off-by: Tony Lindgren diff --git a/arch/arm/plat-omap/counter_32k.c b/arch/arm/plat-omap/counter_32k.c index 155fe43..8722a13 100644 --- a/arch/arm/plat-omap/counter_32k.c +++ b/arch/arm/plat-omap/counter_32k.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include @@ -164,7 +165,7 @@ static int __init omap_init_clocksource_32k(void) return -ENODEV; sync_32k_ick = clk_get(NULL, "omap_32ksync_ick"); - if (sync_32k_ick) + if (!IS_ERR(sync_32k_ick)) clk_enable(sync_32k_ick); clocksource_32k.mult = clocksource_hz2mult(32768, -- cgit v0.10.2 From 0e7d0c860a0dee49dacb7bbb248d1eba637075ad Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Mon, 6 Dec 2010 17:14:47 -0800 Subject: Input: add input driver for polled GPIO buttons The existing gpio-keys driver can be usable only for GPIO lines with interrupt support. Several devices have buttons connected to a GPIO line which is not capable to generate interrupts. This patch adds a new input driver using the generic GPIO layer and the input-polldev to support such buttons. [Ben Gardiner Signed-off-by: Ben Gardiner Tested-by: Ben Gardiner Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig index b8c51b9..3a87f3b 100644 --- a/drivers/input/keyboard/Kconfig +++ b/drivers/input/keyboard/Kconfig @@ -179,6 +179,22 @@ config KEYBOARD_GPIO To compile this driver as a module, choose M here: the module will be called gpio_keys. +config KEYBOARD_GPIO_POLLED + tristate "Polled GPIO buttons" + depends on GENERIC_GPIO + select INPUT_POLLDEV + help + This driver implements support for buttons connected + to GPIO pins that are not capable of generating interrupts. + + Say Y here if your device has buttons connected + directly to such GPIO pins. Your board-specific + setup logic must also provide a platform device, + with configuration data saying which GPIOs are used. + + To compile this driver as a module, choose M here: the + module will be called gpio_keys_polled. + config KEYBOARD_TCA6416 tristate "TCA6416 Keypad Support" depends on I2C diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile index a34452e..622de73 100644 --- a/drivers/input/keyboard/Makefile +++ b/drivers/input/keyboard/Makefile @@ -14,6 +14,7 @@ obj-$(CONFIG_KEYBOARD_BFIN) += bf54x-keys.o obj-$(CONFIG_KEYBOARD_DAVINCI) += davinci_keyscan.o obj-$(CONFIG_KEYBOARD_EP93XX) += ep93xx_keypad.o obj-$(CONFIG_KEYBOARD_GPIO) += gpio_keys.o +obj-$(CONFIG_KEYBOARD_GPIO_POLLED) += gpio_keys_polled.o obj-$(CONFIG_KEYBOARD_TCA6416) += tca6416-keypad.o obj-$(CONFIG_KEYBOARD_HIL) += hil_kbd.o obj-$(CONFIG_KEYBOARD_HIL_OLD) += hilkbd.o diff --git a/drivers/input/keyboard/gpio_keys_polled.c b/drivers/input/keyboard/gpio_keys_polled.c new file mode 100644 index 0000000..4c17aff --- /dev/null +++ b/drivers/input/keyboard/gpio_keys_polled.c @@ -0,0 +1,261 @@ +/* + * Driver for buttons on GPIO lines not capable of generating interrupts + * + * Copyright (C) 2007-2010 Gabor Juhos + * Copyright (C) 2010 Nuno Goncalves + * + * This file was based on: /drivers/input/misc/cobalt_btns.c + * Copyright (C) 2007 Yoichi Yuasa + * + * also was based on: /drivers/input/keyboard/gpio_keys.c + * Copyright 2005 Phil Blundell + * + * 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. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define DRV_NAME "gpio-keys-polled" + +struct gpio_keys_button_data { + int last_state; + int count; + int threshold; + int can_sleep; +}; + +struct gpio_keys_polled_dev { + struct input_polled_dev *poll_dev; + struct device *dev; + struct gpio_keys_platform_data *pdata; + struct gpio_keys_button_data data[0]; +}; + +static void gpio_keys_polled_check_state(struct input_dev *input, + struct gpio_keys_button *button, + struct gpio_keys_button_data *bdata) +{ + int state; + + if (bdata->can_sleep) + state = !!gpio_get_value_cansleep(button->gpio); + else + state = !!gpio_get_value(button->gpio); + + if (state != bdata->last_state) { + unsigned int type = button->type ?: EV_KEY; + + input_event(input, type, button->code, + !!(state ^ button->active_low)); + input_sync(input); + bdata->count = 0; + bdata->last_state = state; + } +} + +static void gpio_keys_polled_poll(struct input_polled_dev *dev) +{ + struct gpio_keys_polled_dev *bdev = dev->private; + struct gpio_keys_platform_data *pdata = bdev->pdata; + struct input_dev *input = dev->input; + int i; + + for (i = 0; i < bdev->pdata->nbuttons; i++) { + struct gpio_keys_button_data *bdata = &bdev->data[i]; + + if (bdata->count < bdata->threshold) + bdata->count++; + else + gpio_keys_polled_check_state(input, &pdata->buttons[i], + bdata); + } +} + +static void gpio_keys_polled_open(struct input_polled_dev *dev) +{ + struct gpio_keys_polled_dev *bdev = dev->private; + struct gpio_keys_platform_data *pdata = bdev->pdata; + + if (pdata->enable) + pdata->enable(bdev->dev); +} + +static void gpio_keys_polled_close(struct input_polled_dev *dev) +{ + struct gpio_keys_polled_dev *bdev = dev->private; + struct gpio_keys_platform_data *pdata = bdev->pdata; + + if (pdata->disable) + pdata->disable(bdev->dev); +} + +static int __devinit gpio_keys_polled_probe(struct platform_device *pdev) +{ + struct gpio_keys_platform_data *pdata = pdev->dev.platform_data; + struct device *dev = &pdev->dev; + struct gpio_keys_polled_dev *bdev; + struct input_polled_dev *poll_dev; + struct input_dev *input; + int error; + int i; + + if (!pdata || !pdata->poll_interval) + return -EINVAL; + + bdev = kzalloc(sizeof(struct gpio_keys_polled_dev) + + pdata->nbuttons * sizeof(struct gpio_keys_button_data), + GFP_KERNEL); + if (!bdev) { + dev_err(dev, "no memory for private data\n"); + return -ENOMEM; + } + + poll_dev = input_allocate_polled_device(); + if (!poll_dev) { + dev_err(dev, "no memory for polled device\n"); + error = -ENOMEM; + goto err_free_bdev; + } + + poll_dev->private = bdev; + poll_dev->poll = gpio_keys_polled_poll; + poll_dev->poll_interval = pdata->poll_interval; + poll_dev->open = gpio_keys_polled_open; + poll_dev->close = gpio_keys_polled_close; + + input = poll_dev->input; + + input->evbit[0] = BIT(EV_KEY); + input->name = pdev->name; + input->phys = DRV_NAME"/input0"; + input->dev.parent = &pdev->dev; + + input->id.bustype = BUS_HOST; + input->id.vendor = 0x0001; + input->id.product = 0x0001; + input->id.version = 0x0100; + + for (i = 0; i < pdata->nbuttons; i++) { + struct gpio_keys_button *button = &pdata->buttons[i]; + struct gpio_keys_button_data *bdata = &bdev->data[i]; + unsigned int gpio = button->gpio; + unsigned int type = button->type ?: EV_KEY; + + if (button->wakeup) { + dev_err(dev, DRV_NAME " does not support wakeup\n"); + error = -EINVAL; + goto err_free_gpio; + } + + error = gpio_request(gpio, + button->desc ? button->desc : DRV_NAME); + if (error) { + dev_err(dev, "unable to claim gpio %u, err=%d\n", + gpio, error); + goto err_free_gpio; + } + + error = gpio_direction_input(gpio); + if (error) { + dev_err(dev, + "unable to set direction on gpio %u, err=%d\n", + gpio, error); + goto err_free_gpio; + } + + bdata->can_sleep = gpio_cansleep(gpio); + bdata->last_state = -1; + bdata->threshold = DIV_ROUND_UP(button->debounce_interval, + pdata->poll_interval); + + input_set_capability(input, type, button->code); + } + + bdev->poll_dev = poll_dev; + bdev->dev = dev; + bdev->pdata = pdata; + platform_set_drvdata(pdev, bdev); + + error = input_register_polled_device(poll_dev); + if (error) { + dev_err(dev, "unable to register polled device, err=%d\n", + error); + goto err_free_gpio; + } + + /* report initial state of the buttons */ + for (i = 0; i < pdata->nbuttons; i++) + gpio_keys_polled_check_state(input, &pdata->buttons[i], + &bdev->data[i]); + + return 0; + +err_free_gpio: + while (--i >= 0) + gpio_free(pdata->buttons[i].gpio); + + input_free_polled_device(poll_dev); + +err_free_bdev: + kfree(bdev); + + platform_set_drvdata(pdev, NULL); + return error; +} + +static int __devexit gpio_keys_polled_remove(struct platform_device *pdev) +{ + struct gpio_keys_polled_dev *bdev = platform_get_drvdata(pdev); + struct gpio_keys_platform_data *pdata = bdev->pdata; + int i; + + input_unregister_polled_device(bdev->poll_dev); + + for (i = 0; i < pdata->nbuttons; i++) + gpio_free(pdata->buttons[i].gpio); + + input_free_polled_device(bdev->poll_dev); + + kfree(bdev); + platform_set_drvdata(pdev, NULL); + + return 0; +} + +static struct platform_driver gpio_keys_polled_driver = { + .probe = gpio_keys_polled_probe, + .remove = __devexit_p(gpio_keys_polled_remove), + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + }, +}; + +static int __init gpio_keys_polled_init(void) +{ + return platform_driver_register(&gpio_keys_polled_driver); +} + +static void __exit gpio_keys_polled_exit(void) +{ + platform_driver_unregister(&gpio_keys_polled_driver); +} + +module_init(gpio_keys_polled_init); +module_exit(gpio_keys_polled_exit); + +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Gabor Juhos "); +MODULE_DESCRIPTION("Polled GPIO Buttons driver"); +MODULE_ALIAS("platform:" DRV_NAME); diff --git a/include/linux/gpio_keys.h b/include/linux/gpio_keys.h index ce73a301..dd1a56f 100644 --- a/include/linux/gpio_keys.h +++ b/include/linux/gpio_keys.h @@ -16,6 +16,8 @@ struct gpio_keys_button { struct gpio_keys_platform_data { struct gpio_keys_button *buttons; int nbuttons; + unsigned int poll_interval; /* polling interval in msecs - + for polling driver only */ unsigned int rep:1; /* enable input subsystem auto repeat */ int (*enable)(struct device *dev); void (*disable)(struct device *dev); -- cgit v0.10.2 From 7a1948768c2998f5bddb2327696cbe3161f468ed Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Tue, 7 Dec 2010 10:38:40 +0000 Subject: drm/i915: Emit a request to clear a flushed and idle ring for unbusy bo In order for bos to retire eventually, a request must be sent down the ring. This is expected, for example, by occlusion queries for which mesa will wait upon (whilst running glean) before issuing more batches and so the normal activity upon the ring is suspended and we need to emit a request to clear the idle ring. Reported-by: Jinjin, Wang Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=30380 Signed-off-by: Chris Wilson diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 5e54821..275ec6e 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -4374,10 +4374,20 @@ i915_gem_busy_ioctl(struct drm_device *dev, void *data, * use this buffer rather sooner than later, so issuing the required * flush earlier is beneficial. */ - if (obj->write_domain & I915_GEM_GPU_DOMAINS) + if (obj->write_domain & I915_GEM_GPU_DOMAINS) { i915_gem_flush_ring(dev, file_priv, obj_priv->ring, 0, obj->write_domain); + } else if (obj_priv->ring->outstanding_lazy_request) { + /* This ring is not being cleared by active usage, + * so emit a request to do so. + */ + u32 seqno = i915_add_request(dev, + NULL, NULL, + obj_priv->ring); + if (seqno == 0) + ret = -ENOMEM; + } /* Update the active list for the hardware's current position. * Otherwise this only updates on a delayed timer or when irqs -- cgit v0.10.2 From 681e36924788aeea2717c07cc42a21c9c86d7559 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 7 Dec 2010 20:56:30 +0800 Subject: ASoC: Fix resource leak if soc_register_ac97_dai_link failed Properly free the resources in the case of soc_register_ac97_dai_link failure. Signed-off-by: Axel Lin Acked-by: Liam Girdwood Signed-off-by: Mark Brown diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 02ae7be..85b7d54 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1619,12 +1619,14 @@ static void snd_soc_instantiate_card(struct snd_soc_card *card) #ifdef CONFIG_SND_SOC_AC97_BUS /* register any AC97 codecs */ for (i = 0; i < card->num_rtd; i++) { - ret = soc_register_ac97_dai_link(&card->rtd[i]); - if (ret < 0) { - printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name); - goto probe_dai_err; - } + ret = soc_register_ac97_dai_link(&card->rtd[i]); + if (ret < 0) { + printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name); + while (--i >= 0) + soc_unregister_ac97_dai_link(&card->rtd[i]); + goto probe_dai_err; } + } #endif card->instantiated = 1; -- cgit v0.10.2 From de47de7404e29df8de82f5822b4fde1a6ed97b54 Mon Sep 17 00:00:00 2001 From: Ian Kent Date: Tue, 7 Dec 2010 13:04:00 +0800 Subject: autofs4 - remove ioctl mutex (bz23142) With the recent changes to remove the BKL a mutex was added to the ioctl entry point for calls to the old ioctl interface. This mutex needs to be removed because of the need for the expire ioctl to call back to the daemon to perform a umount and receive a completion status (via another ioctl). This should be fine as the new ioctl interface uses much of the same code and it has been used without a mutex for around a year without issue, as was the original intention. Ref: Bugzilla bug 23142 Signed-off-by: Ian Kent Acked-by: Arnd Bergmann Signed-off-by: Linus Torvalds diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c index d5c1401..d34896c 100644 --- a/fs/autofs4/root.c +++ b/fs/autofs4/root.c @@ -980,19 +980,11 @@ static int autofs4_root_ioctl_unlocked(struct inode *inode, struct file *filp, } } -static DEFINE_MUTEX(autofs4_ioctl_mutex); - static long autofs4_root_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { - long ret; struct inode *inode = filp->f_dentry->d_inode; - - mutex_lock(&autofs4_ioctl_mutex); - ret = autofs4_root_ioctl_unlocked(inode, filp, cmd, arg); - mutex_unlock(&autofs4_ioctl_mutex); - - return ret; + return autofs4_root_ioctl_unlocked(inode, filp, cmd, arg); } #ifdef CONFIG_COMPAT @@ -1002,13 +994,11 @@ static long autofs4_root_compat_ioctl(struct file *filp, struct inode *inode = filp->f_path.dentry->d_inode; int ret; - mutex_lock(&autofs4_ioctl_mutex); if (cmd == AUTOFS_IOC_READY || cmd == AUTOFS_IOC_FAIL) ret = autofs4_root_ioctl_unlocked(inode, filp, cmd, arg); else ret = autofs4_root_ioctl_unlocked(inode, filp, cmd, (unsigned long)compat_ptr(arg)); - mutex_unlock(&autofs4_ioctl_mutex); return ret; } -- cgit v0.10.2 From 6b464321d276e448d478c99202c19d83f2bd25f4 Mon Sep 17 00:00:00 2001 From: Jassi Brar Date: Tue, 7 Dec 2010 19:23:07 +0900 Subject: ASoC: WM8580: Debug BCLK and sample size In case of SNDRV_PCM_FORMAT_S32_LE, we need to set WM8580_AIF_LENGTH_32, rather than WM8580_AIF_LENGTH_24. Also, the BCLK has to be 64fs, for sample size of 20, 24 and 32 bits. Signed-off-by: Jassi Brar Acked-by: Liam Girdwood Signed-off-by: Mark Brown diff --git a/sound/soc/codecs/wm8580.c b/sound/soc/codecs/wm8580.c index a2e0ed5..879dff2 100644 --- a/sound/soc/codecs/wm8580.c +++ b/sound/soc/codecs/wm8580.c @@ -491,16 +491,16 @@ static int wm8580_paif_hw_params(struct snd_pcm_substream *substream, paifa |= 0x8; break; case SNDRV_PCM_FORMAT_S20_3LE: - paifa |= 0x10; + paifa |= 0x0; paifb |= WM8580_AIF_LENGTH_20; break; case SNDRV_PCM_FORMAT_S24_LE: - paifa |= 0x10; + paifa |= 0x0; paifb |= WM8580_AIF_LENGTH_24; break; case SNDRV_PCM_FORMAT_S32_LE: - paifa |= 0x10; - paifb |= WM8580_AIF_LENGTH_24; + paifa |= 0x0; + paifb |= WM8580_AIF_LENGTH_32; break; default: return -EINVAL; -- cgit v0.10.2 From 2a7b1a00206895cfa444fd83477dca67a88a9d25 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 7 Dec 2010 15:32:38 +0000 Subject: ASoC: Correct WM8962 interrupt mask register read Fix mismerge from the out of tree BSP where this support was developed. Signed-off-by: Mark Brown diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c index e809274..1304ca9 100644 --- a/sound/soc/codecs/wm8962.c +++ b/sound/soc/codecs/wm8962.c @@ -3339,7 +3339,7 @@ static irqreturn_t wm8962_irq(int irq, void *data) int mask; int active; - mask = snd_soc_read(codec, WM8962_INTERRUPT_STATUS_2); + mask = snd_soc_read(codec, WM8962_INTERRUPT_STATUS_2_MASK); active = snd_soc_read(codec, WM8962_INTERRUPT_STATUS_2); active &= ~mask; -- cgit v0.10.2 From 18fb5fe40ce7f789b5cfc3aa81ff1e6175b0a5be Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 7 Dec 2010 12:41:58 -0500 Subject: NFS: nfs_readdir_search_for_cookie() don't mark as eof if cookie not found If we're searching for a specific cookie, and it isn't found in the page cache, we should try an uncached_readdir(). To do so, we return EBADCOOKIE, but we don't set desc->eof. Signed-off-by: Trond Myklebust diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index d529e0e..ad2fde2 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -316,8 +316,9 @@ int nfs_readdir_search_for_cookie(struct nfs_cache_array *array, nfs_readdir_des } } if (i == array->eof_index) { - desc->eof = 1; status = -EBADCOOKIE; + if (*desc->dir_cookie == array->last_cookie) + desc->eof = 1; } out: return status; -- cgit v0.10.2 From 47c716cbf638a16583441d78be3fc24345eab636 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 7 Dec 2010 12:44:56 -0500 Subject: NFS: Readdir cleanups No functional changes, but clarify the code. Signed-off-by: Trond Myklebust diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index ad2fde2..996dd89 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -271,7 +271,7 @@ int nfs_readdir_add_to_array(struct nfs_entry *entry, struct page *page) goto out; array->last_cookie = entry->cookie; array->size++; - if (entry->eof == 1) + if (entry->eof != 0) array->eof_index = array->size; out: nfs_readdir_release_array(page); @@ -311,16 +311,14 @@ int nfs_readdir_search_for_cookie(struct nfs_cache_array *array, nfs_readdir_des for (i = 0; i < array->size; i++) { if (array->array[i].cookie == *desc->dir_cookie) { desc->cache_entry_index = i; - status = 0; - goto out; + return 0; } } - if (i == array->eof_index) { + if (array->eof_index >= 0) { status = -EBADCOOKIE; if (*desc->dir_cookie == array->last_cookie) desc->eof = 1; } -out: return status; } @@ -328,10 +326,7 @@ static int nfs_readdir_search_array(nfs_readdir_descriptor_t *desc) { struct nfs_cache_array *array; - int status = -EBADCOOKIE; - - if (desc->dir_cookie == NULL) - goto out; + int status; array = nfs_readdir_get_array(desc->page); if (IS_ERR(array)) { @@ -344,8 +339,10 @@ int nfs_readdir_search_array(nfs_readdir_descriptor_t *desc) else status = nfs_readdir_search_for_cookie(array, desc); - if (status == -EAGAIN) + if (status == -EAGAIN) { desc->last_cookie = array->last_cookie; + desc->page_index++; + } nfs_readdir_release_array(desc->page); out: return status; @@ -492,7 +489,7 @@ int nfs_readdir_page_filler(nfs_readdir_descriptor_t *desc, struct nfs_entry *en count++; - if (desc->plus == 1) + if (desc->plus != 0) nfs_prime_dcache(desc->file->f_path.dentry, entry); status = nfs_readdir_add_to_array(entry, page); @@ -500,7 +497,7 @@ int nfs_readdir_page_filler(nfs_readdir_descriptor_t *desc, struct nfs_entry *en break; } while (!entry->eof); - if (count == 0 || (status == -EBADCOOKIE && entry->eof == 1)) { + if (count == 0 || (status == -EBADCOOKIE && entry->eof != 0)) { array = nfs_readdir_get_array(page); if (!IS_ERR(array)) { array->eof_index = array->size; @@ -664,9 +661,8 @@ int find_cache_page(nfs_readdir_descriptor_t *desc) return PTR_ERR(desc->page); res = nfs_readdir_search_array(desc); - if (res == 0) - return 0; - cache_page_release(desc); + if (res != 0) + cache_page_release(desc); return res; } @@ -680,20 +676,12 @@ int readdir_search_pagecache(nfs_readdir_descriptor_t *desc) desc->current_index = 0; desc->last_cookie = 0; } - while (1) { + do { res = find_cache_page(desc); - if (res != -EAGAIN) - break; - desc->page_index++; - } + } while (res == -EAGAIN); return res; } -static inline unsigned int dt_type(struct inode *inode) -{ - return (inode->i_mode >> 12) & 15; -} - /* * Once we've found the start of the dirent within a page: fill 'er up... */ @@ -723,13 +711,12 @@ int nfs_do_filldir(nfs_readdir_descriptor_t *desc, void *dirent, break; } file->f_pos++; - desc->cache_entry_index = i; if (i < (array->size-1)) *desc->dir_cookie = array->array[i+1].cookie; else *desc->dir_cookie = array->last_cookie; } - if (i == array->eof_index) + if (array->eof_index >= 0) desc->eof = 1; nfs_readdir_release_array(desc->page); @@ -798,7 +785,7 @@ static int nfs_readdir(struct file *filp, void *dirent, filldir_t filldir) struct inode *inode = dentry->d_inode; nfs_readdir_descriptor_t my_desc, *desc = &my_desc; - int res = -ENOMEM; + int res; dfprintk(FILE, "NFS: readdir(%s/%s) starting at cookie %llu\n", dentry->d_parent->d_name.name, dentry->d_name.name, @@ -823,7 +810,7 @@ static int nfs_readdir(struct file *filp, void *dirent, filldir_t filldir) if (res < 0) goto out; - while (desc->eof != 1) { + do { res = readdir_search_pagecache(desc); if (res == -EBADCOOKIE) { @@ -851,7 +838,7 @@ static int nfs_readdir(struct file *filp, void *dirent, filldir_t filldir) res = nfs_do_filldir(desc, dirent, filldir); if (res < 0) break; - } + } while (!desc->eof); out: nfs_unblock_sillyrename(dentry); if (res > 0) -- cgit v0.10.2 From 4b0dbdb17f846a8887e5f7fbeea2deb0703236bd Mon Sep 17 00:00:00 2001 From: Anssi Hannula Date: Tue, 7 Dec 2010 18:41:35 +0200 Subject: ALSA: hda - Do not wrongly restrict min_channels based on ELD Commit bbbe33900d1f3c added functionality to restrict PCM parameters based on ELD info (derived from EDID data) of the audio sink. However, it wrongly assumes that the bits 0-2 of the first byte of CEA Short Audio Descriptors mean a supported number of channels. In reality, they mean the maximum number of channels (as per CEA-861-D 7.5.2). This means that the channel count can only be used to restrict max_channels, not min_channels. Restricting min_channels causes us to deny opening the device in stereo mode if the sink only has SADs that declare larger numbers of channels (like Primare SP32 AV Processor does). Fix that by not restricting min_channels based on ELD information. Signed-off-by: Anssi Hannula Reported-by: Jean-Yves Avenard Tested-by: Jean-Yves Avenard Cc: stable@kernel.org Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c index cb0c23a..47ef8aa 100644 --- a/sound/pci/hda/hda_eld.c +++ b/sound/pci/hda/hda_eld.c @@ -601,13 +601,10 @@ void hdmi_eld_update_pcm_info(struct hdmi_eld *eld, struct hda_pcm_stream *pcm, pcm->rates = 0; pcm->formats = 0; pcm->maxbps = 0; - pcm->channels_min = -1; pcm->channels_max = 0; for (i = 0; i < eld->sad_count; i++) { struct cea_sad *a = &eld->sad[i]; pcm->rates |= a->rates; - if (a->channels < pcm->channels_min) - pcm->channels_min = a->channels; if (a->channels > pcm->channels_max) pcm->channels_max = a->channels; if (a->format == AUDIO_CODING_TYPE_LPCM) { @@ -635,7 +632,6 @@ void hdmi_eld_update_pcm_info(struct hdmi_eld *eld, struct hda_pcm_stream *pcm, /* restrict the parameters by the values the codec provides */ pcm->rates &= codec_pars->rates; pcm->formats &= codec_pars->formats; - pcm->channels_min = max(pcm->channels_min, codec_pars->channels_min); pcm->channels_max = min(pcm->channels_max, codec_pars->channels_max); pcm->maxbps = min(pcm->maxbps, codec_pars->maxbps); } diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index d3e49aa..31df774 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -834,7 +834,6 @@ static int hdmi_pcm_open(struct hda_pcm_stream *hinfo, return -ENODEV; } else { /* fallback to the codec default */ - hinfo->channels_min = codec_pars->channels_min; hinfo->channels_max = codec_pars->channels_max; hinfo->rates = codec_pars->rates; hinfo->formats = codec_pars->formats; -- cgit v0.10.2 From 3dc86429032910bdf762adeb2969112bb303924c Mon Sep 17 00:00:00 2001 From: Anssi Hannula Date: Tue, 7 Dec 2010 20:56:19 +0200 Subject: ALSA: hda - Always allow basic audio irrespective of ELD info Commit bbbe33900d1f3c added functionality to restrict PCM parameters based on ELD info (derived from EDID data) of the audio sink. However, according to CEA-861-D no SAD is needed for basic audio (32/44.1/48kHz stereo 16-bit audio), which is instead indicated with a basic audio flag in the CEA EDID Extension. The flag is not present in ELD. However, as all audio capable sinks are required to support basic audio, we can assume it to be always available. Fix allowed audio formats with sinks that have SADs (Short Audio Descriptors) which do not completely overlap with the basic audio formats (there are no reports of affected devices so far) by always assuming that basic audio is supported. Reported-by: Stephen Warren Signed-off-by: Anssi Hannula Cc: stable@kernel.org Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c index 47ef8aa..009031f 100644 --- a/sound/pci/hda/hda_eld.c +++ b/sound/pci/hda/hda_eld.c @@ -598,21 +598,19 @@ void hdmi_eld_update_pcm_info(struct hdmi_eld *eld, struct hda_pcm_stream *pcm, { int i; - pcm->rates = 0; - pcm->formats = 0; - pcm->maxbps = 0; - pcm->channels_max = 0; + /* assume basic audio support (the basic audio flag is not in ELD; + * however, all audio capable sinks are required to support basic + * audio) */ + pcm->rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000; + pcm->formats = SNDRV_PCM_FMTBIT_S16_LE; + pcm->maxbps = 16; + pcm->channels_max = 2; for (i = 0; i < eld->sad_count; i++) { struct cea_sad *a = &eld->sad[i]; pcm->rates |= a->rates; if (a->channels > pcm->channels_max) pcm->channels_max = a->channels; if (a->format == AUDIO_CODING_TYPE_LPCM) { - if (a->sample_bits & AC_SUPPCM_BITS_16) { - pcm->formats |= SNDRV_PCM_FMTBIT_S16_LE; - if (pcm->maxbps < 16) - pcm->maxbps = 16; - } if (a->sample_bits & AC_SUPPCM_BITS_20) { pcm->formats |= SNDRV_PCM_FMTBIT_S32_LE; if (pcm->maxbps < 20) -- cgit v0.10.2 From 03ceace5c6923ffbcf2b4d2e37afbffbdb5d4a67 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Mon, 6 Dec 2010 21:07:33 -0500 Subject: cifs: fix check of error return from is_path_accessable This function will return 0 if everything went ok. Commit 9d002df4 however added a block of code after the following check for rc == -EREMOTE. With that change and when rc == 0, doing the "goto mount_fail_check" here skips that code, leaving the tlink_tree and master_tlink pointer unpopulated. That causes an oops later in cifs_root_iget. Reported-and-Tested-by: Robbert Kouprie Signed-off-by: Jeff Layton Signed-off-by: Steve French diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 53f9c31..387b91a 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -2839,7 +2839,7 @@ remote_path_check: goto mount_fail_check; } rc = is_path_accessible(xid, tcon, cifs_sb, full_path); - if (rc != -EREMOTE) { + if (rc != 0 && rc != -EREMOTE) { kfree(full_path); goto mount_fail_check; } -- cgit v0.10.2 From 7d161b7f41e24203b54b0f18ae0d26c18a6c6fab Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Tue, 7 Dec 2010 02:10:35 -0500 Subject: cifs: allow calling cifs_build_path_to_root on incomplete cifs_sb It's possible that cifs_mount will call cifs_build_path_to_root on a newly instantiated cifs_sb. In that case, it's likely that the master_tlink pointer has not yet been instantiated. Fix this by having cifs_build_path_to_root take a cifsTconInfo pointer as well, and have the caller pass that in. Reported-and-Tested-by: Robbert Kouprie Signed-off-by: Jeff Layton Signed-off-by: Steve French diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index 5523047..e6d1481 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -54,7 +54,8 @@ do { \ __func__, curr_xid, (int)rc); \ } while (0) extern char *build_path_from_dentry(struct dentry *); -extern char *cifs_build_path_to_root(struct cifs_sb_info *cifs_sb); +extern char *cifs_build_path_to_root(struct cifs_sb_info *cifs_sb, + struct cifsTconInfo *tcon); extern char *build_wildcard_path_from_dentry(struct dentry *direntry); extern char *cifs_compose_mount_options(const char *sb_mountdata, const char *fullpath, const struct dfs_info3_param *ref, diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 387b91a..cc1a860 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -2833,7 +2833,7 @@ remote_path_check: /* check if a whole path (including prepath) is not remote */ if (!rc && cifs_sb->prepathlen && tcon) { /* build_path_to_root works only when we have a valid tcon */ - full_path = cifs_build_path_to_root(cifs_sb); + full_path = cifs_build_path_to_root(cifs_sb, tcon); if (full_path == NULL) { rc = -ENOMEM; goto mount_fail_check; diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index aa48521..589f3e3 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -728,12 +728,12 @@ static const struct inode_operations cifs_ipc_inode_ops = { .lookup = cifs_lookup, }; -char *cifs_build_path_to_root(struct cifs_sb_info *cifs_sb) +char *cifs_build_path_to_root(struct cifs_sb_info *cifs_sb, + struct cifsTconInfo *tcon) { int pplen = cifs_sb->prepathlen; int dfsplen; char *full_path = NULL; - struct cifsTconInfo *tcon = cifs_sb_master_tcon(cifs_sb); /* if no prefix path, simply set path to the root of share to "" */ if (pplen == 0) { @@ -875,7 +875,7 @@ struct inode *cifs_root_iget(struct super_block *sb, unsigned long ino) char *full_path; struct cifsTconInfo *tcon = cifs_sb_master_tcon(cifs_sb); - full_path = cifs_build_path_to_root(cifs_sb); + full_path = cifs_build_path_to_root(cifs_sb, tcon); if (full_path == NULL) return ERR_PTR(-ENOMEM); -- cgit v0.10.2 From 6142e05f30b101adeafb0d12e35983f44f68233e Mon Sep 17 00:00:00 2001 From: David Howells Date: Tue, 7 Dec 2010 17:41:40 +0000 Subject: MN10300: Fix interrupt mask alteration function call name in gdbstub Fix the name of interrupt mask alteration function (ie the local_change_intr_mask_level() fn) called in gdbstub to have an arch_ prefix to match the definition in asm/irqflags.h. Signed-off-by: David Howells Signed-off-by: Linus Torvalds diff --git a/arch/mn10300/kernel/gdb-io-serial.c b/arch/mn10300/kernel/gdb-io-serial.c index 0d5d63c..f28dc99 100644 --- a/arch/mn10300/kernel/gdb-io-serial.c +++ b/arch/mn10300/kernel/gdb-io-serial.c @@ -73,7 +73,8 @@ void gdbstub_io_init(void) GDBPORT_SERIAL_IER = UART_IER_RDI | UART_IER_RLSI; /* permit level 0 IRQs to take place */ - local_change_intr_mask_level(NUM2EPSW_IM(CONFIG_GDBSTUB_IRQ_LEVEL + 1)); + arch_local_change_intr_mask_level( + NUM2EPSW_IM(CONFIG_GDBSTUB_IRQ_LEVEL + 1)); } /* diff --git a/arch/mn10300/kernel/gdb-io-ttysm.c b/arch/mn10300/kernel/gdb-io-ttysm.c index 97dfda2..abdeea1 100644 --- a/arch/mn10300/kernel/gdb-io-ttysm.c +++ b/arch/mn10300/kernel/gdb-io-ttysm.c @@ -87,7 +87,8 @@ void __init gdbstub_io_init(void) tmp = *gdbstub_port->_control; /* permit level 0 IRQs only */ - local_change_intr_mask_level(NUM2EPSW_IM(CONFIG_GDBSTUB_IRQ_LEVEL + 1)); + arch_local_change_intr_mask_level( + NUM2EPSW_IM(CONFIG_GDBSTUB_IRQ_LEVEL + 1)); } /* diff --git a/arch/mn10300/kernel/gdb-stub.c b/arch/mn10300/kernel/gdb-stub.c index a5fc3f0..b169d99 100644 --- a/arch/mn10300/kernel/gdb-stub.c +++ b/arch/mn10300/kernel/gdb-stub.c @@ -1194,7 +1194,8 @@ static int gdbstub(struct pt_regs *regs, enum exception_code excep) asm volatile("mov mdr,%0" : "=d"(mdr)); local_save_flags(epsw); - local_change_intr_mask_level(NUM2EPSW_IM(CONFIG_GDBSTUB_IRQ_LEVEL + 1)); + arch_local_change_intr_mask_level( + NUM2EPSW_IM(CONFIG_GDBSTUB_IRQ_LEVEL + 1)); gdbstub_store_fpu(); -- cgit v0.10.2 From 94dec6a2d20a26a779b63bb584e48db5fb0ddb53 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Tue, 7 Dec 2010 19:24:45 +0000 Subject: sfc: Fix crash in legacy onterrupt handler during ring reallocation If we are using a legacy interrupt, our IRQ may be shared and our interrupt handler may be called even though interrupts are disabled on the NIC. When we change ring sizes, we reallocate the event queue and the interrupt handler may use an invalid pointer when called for another device's interrupt. Maintain a legacy_irq_enabled flag and test that at the top of the interrupt handler. Note that this problem results from the need to work around broken INT_ISR0 reads, and does not affect the legacy interrupt handler for Falcon A1. Signed-off-by: Ben Hutchings diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c index 05df20e..d06cb74 100644 --- a/drivers/net/sfc/efx.c +++ b/drivers/net/sfc/efx.c @@ -335,8 +335,10 @@ void efx_process_channel_now(struct efx_channel *channel) /* Disable interrupts and wait for ISRs to complete */ efx_nic_disable_interrupts(efx); - if (efx->legacy_irq) + if (efx->legacy_irq) { synchronize_irq(efx->legacy_irq); + efx->legacy_irq_enabled = false; + } if (channel->irq) synchronize_irq(channel->irq); @@ -351,6 +353,8 @@ void efx_process_channel_now(struct efx_channel *channel) efx_channel_processed(channel); napi_enable(&channel->napi_str); + if (efx->legacy_irq) + efx->legacy_irq_enabled = true; efx_nic_enable_interrupts(efx); } @@ -1400,6 +1404,8 @@ static void efx_start_all(struct efx_nic *efx) efx_start_channel(channel); } + if (efx->legacy_irq) + efx->legacy_irq_enabled = true; efx_nic_enable_interrupts(efx); /* Switch to event based MCDI completions after enabling interrupts. @@ -1460,8 +1466,10 @@ static void efx_stop_all(struct efx_nic *efx) /* Disable interrupts and wait for ISR to complete */ efx_nic_disable_interrupts(efx); - if (efx->legacy_irq) + if (efx->legacy_irq) { synchronize_irq(efx->legacy_irq); + efx->legacy_irq_enabled = false; + } efx_for_each_channel(channel, efx) { if (channel->irq) synchronize_irq(channel->irq); diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h index 0a7e26d..b137c88 100644 --- a/drivers/net/sfc/net_driver.h +++ b/drivers/net/sfc/net_driver.h @@ -621,6 +621,7 @@ struct efx_filter_state; * @pci_dev: The PCI device * @type: Controller type attributes * @legacy_irq: IRQ number + * @legacy_irq_enabled: Are IRQs enabled on NIC (INT_EN_KER register)? * @workqueue: Workqueue for port reconfigures and the HW monitor. * Work items do not hold and must not acquire RTNL. * @workqueue_name: Name of workqueue @@ -709,6 +710,7 @@ struct efx_nic { struct pci_dev *pci_dev; const struct efx_nic_type *type; int legacy_irq; + bool legacy_irq_enabled; struct workqueue_struct *workqueue; char workqueue_name[16]; struct work_struct reset_work; diff --git a/drivers/net/sfc/nic.c b/drivers/net/sfc/nic.c index 41c36b9..67cb0c9 100644 --- a/drivers/net/sfc/nic.c +++ b/drivers/net/sfc/nic.c @@ -1418,6 +1418,12 @@ static irqreturn_t efx_legacy_interrupt(int irq, void *dev_id) u32 queues; int syserr; + /* Could this be ours? If interrupts are disabled then the + * channel state may not be valid. + */ + if (!efx->legacy_irq_enabled) + return result; + /* Read the ISR which also ACKs the interrupts */ efx_readd(efx, ®, FR_BZ_INT_ISR0); queues = EFX_EXTRACT_DWORD(reg, 0, 31); -- cgit v0.10.2 From 841051602e3fa18ea468fe5a177aa92b6eb44b56 Mon Sep 17 00:00:00 2001 From: Matteo Croce Date: Fri, 3 Dec 2010 02:25:08 +0100 Subject: ath9k: fix bug in tx power The ath9k driver subtracts 3 dBm to the txpower as with two radios the signal power is doubled. The resulting value is assigned in an u16 which overflows and makes the card work at full power. Cc: stable@kernel.org Signed-off-by: Matteo Croce Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/eeprom_def.c b/drivers/net/wireless/ath/ath9k/eeprom_def.c index 526d7c9..a3ccb1b 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom_def.c +++ b/drivers/net/wireless/ath/ath9k/eeprom_def.c @@ -1063,15 +1063,19 @@ static void ath9k_hw_set_def_power_per_rate_table(struct ath_hw *ah, case 1: break; case 2: - scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN; + if (scaledPower > REDUCE_SCALED_POWER_BY_TWO_CHAIN) + scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN; + else + scaledPower = 0; break; case 3: - scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN; + if (scaledPower > REDUCE_SCALED_POWER_BY_THREE_CHAIN) + scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN; + else + scaledPower = 0; break; } - scaledPower = max((u16)0, scaledPower); - if (IS_CHAN_2GHZ(chan)) { numCtlModes = ARRAY_SIZE(ctlModesFor11g) - SUB_NUM_CTL_MODES_AT_2G_40; -- cgit v0.10.2 From 080e1a259acea10b6df8e2a8e49b47481940220a Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sun, 5 Dec 2010 20:17:53 +0100 Subject: ath9k: fix a DMA related race condition on reset When ath_drain_all_txq fails to stop DMA, it issues a hw reset. This reset happens at a very problematic point in time, when the hardware rx path has not been stopped yet. This could lead to memory corruption, hardware hangs or other issues. To fix these issues, simply remove the reset entirely and check the tx DMA stop status to prevent problems with fast channel changes. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 0d0bec3..0963071 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -329,7 +329,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp); struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype); void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq); int ath_tx_setup(struct ath_softc *sc, int haltype); -void ath_drain_all_txq(struct ath_softc *sc, bool retry_tx); +bool ath_drain_all_txq(struct ath_softc *sc, bool retry_tx); void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq, bool retry_tx); void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an); diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index dace215..928ef68 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -244,11 +244,12 @@ int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, * the relevant bits of the h/w. */ ath9k_hw_set_interrupts(ah, 0); - ath_drain_all_txq(sc, false); + stopped = ath_drain_all_txq(sc, false); spin_lock_bh(&sc->rx.pcu_lock); - stopped = ath_stoprecv(sc); + if (!ath_stoprecv(sc)) + stopped = false; /* XXX: do not flush receive queue here. We don't want * to flush data frames already in queue because of diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index f2ade24..aff0478 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1120,7 +1120,7 @@ void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq, bool retry_tx) } } -void ath_drain_all_txq(struct ath_softc *sc, bool retry_tx) +bool ath_drain_all_txq(struct ath_softc *sc, bool retry_tx) { struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(sc->sc_ah); @@ -1128,7 +1128,7 @@ void ath_drain_all_txq(struct ath_softc *sc, bool retry_tx) int i, npend = 0; if (sc->sc_flags & SC_OP_INVALID) - return; + return true; /* Stop beacon queue */ ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); @@ -1142,25 +1142,15 @@ void ath_drain_all_txq(struct ath_softc *sc, bool retry_tx) } } - if (npend) { - int r; - - ath_print(common, ATH_DBG_FATAL, - "Failed to stop TX DMA. Resetting hardware!\n"); - - spin_lock_bh(&sc->sc_resetlock); - r = ath9k_hw_reset(ah, sc->sc_ah->curchan, ah->caldata, false); - if (r) - ath_print(common, ATH_DBG_FATAL, - "Unable to reset hardware; reset status %d\n", - r); - spin_unlock_bh(&sc->sc_resetlock); - } + if (npend) + ath_print(common, ATH_DBG_FATAL, "Failed to stop TX DMA!\n"); for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { if (ATH_TXQ_SETUP(sc, i)) ath_draintxq(sc, &sc->tx.txq[i], retry_tx); } + + return !npend; } void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq) -- cgit v0.10.2 From 38852b20c8b6d97618204ac64abbf14f0080393e Mon Sep 17 00:00:00 2001 From: Senthil Balasubramanian Date: Mon, 6 Dec 2010 19:09:27 +0530 Subject: ath9k: Fix STA disconnect issue due to received MIC failed bcast frames AR_RxKeyIdxValid will not be set for bcast/mcast frames and so relying this status for MIC failed frames is buggy. Due to this, MIC failure events for broadcast frames are not sent to supplicant resulted in AP disconnecting the STA. Able to pass Wifi Test case 5.2.18 with this fix. Cc: Stable (2.6.36+) Signed-off-by: Senthil Balasubramanian Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c index 8c13479..c996963 100644 --- a/drivers/net/wireless/ath/ath9k/mac.c +++ b/drivers/net/wireless/ath/ath9k/mac.c @@ -703,8 +703,7 @@ int ath9k_hw_rxprocdesc(struct ath_hw *ah, struct ath_desc *ds, rs->rs_phyerr = phyerr; } else if (ads.ds_rxstatus8 & AR_DecryptCRCErr) rs->rs_status |= ATH9K_RXERR_DECRYPT; - else if ((ads.ds_rxstatus8 & AR_MichaelErr) && - rs->rs_keyix != ATH9K_RXKEYIX_INVALID) + else if (ads.ds_rxstatus8 & AR_MichaelErr) rs->rs_status |= ATH9K_RXERR_MIC; else if (ads.ds_rxstatus8 & AR_KeyMiss) rs->rs_status |= ATH9K_RXERR_DECRYPT; diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index 1a62e35..fdc2ec5 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -838,6 +838,10 @@ static bool ath9k_rx_accept(struct ath_common *common, struct ath_rx_status *rx_stats, bool *decrypt_error) { +#define is_mc_or_valid_tkip_keyix ((is_mc || \ + (rx_stats->rs_keyix != ATH9K_RXKEYIX_INVALID && \ + test_bit(rx_stats->rs_keyix, common->tkip_keymap)))) + struct ath_hw *ah = common->ah; __le16 fc; u8 rx_status_len = ah->caps.rx_status_len; @@ -879,15 +883,18 @@ static bool ath9k_rx_accept(struct ath_common *common, if (rx_stats->rs_status & ATH9K_RXERR_DECRYPT) { *decrypt_error = true; } else if (rx_stats->rs_status & ATH9K_RXERR_MIC) { + bool is_mc; /* * The MIC error bit is only valid if the frame * is not a control frame or fragment, and it was * decrypted using a valid TKIP key. */ + is_mc = !!is_multicast_ether_addr(hdr->addr1); + if (!ieee80211_is_ctl(fc) && !ieee80211_has_morefrags(fc) && !(le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG) && - test_bit(rx_stats->rs_keyix, common->tkip_keymap)) + is_mc_or_valid_tkip_keyix) rxs->flag |= RX_FLAG_MMIC_ERROR; else rx_stats->rs_status &= ~ATH9K_RXERR_MIC; -- cgit v0.10.2 From 884a963fa1c828a5c5fa7a46b2877dd463bfd47c Mon Sep 17 00:00:00 2001 From: Rajkumar Manoharan Date: Tue, 7 Dec 2010 17:42:18 +0530 Subject: ath9k: fix beacon resource related race condition The beacon tasklet is accesssing the bslot info for beacon generation. Meanwhile the same slot can be freed on interface deletion. Current the remove_interface disables the beacon alert after freeing the slot. This may leads to null pointer access. This patch disables SWBA and kills the beacon tasklet to prevent access to the slot to be freed. After releasing the slot, swba will be enabled again upon the availablity of beaconing interfaces. Signed-off-by: Rajkumar 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 928ef68..c0c3464 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -1520,8 +1520,6 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw, struct ath_softc *sc = aphy->sc; struct ath_common *common = ath9k_hw_common(sc->sc_ah); struct ath_vif *avp = (void *)vif->drv_priv; - bool bs_valid = false; - int i; ath_print(common, ATH_DBG_CONFIG, "Detach Interface\n"); @@ -1535,26 +1533,21 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw, if ((sc->sc_ah->opmode == NL80211_IFTYPE_AP) || (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) || (sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT)) { + /* Disable SWBA interrupt */ + sc->sc_ah->imask &= ~ATH9K_INT_SWBA; ath9k_ps_wakeup(sc); + ath9k_hw_set_interrupts(sc->sc_ah, sc->sc_ah->imask); ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); ath9k_ps_restore(sc); + tasklet_kill(&sc->bcon_tasklet); } ath_beacon_return(sc, avp); sc->sc_flags &= ~SC_OP_BEACONS; - for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) { - if (sc->beacon.bslot[i] == vif) { - printk(KERN_DEBUG "%s: vif had allocated beacon " - "slot\n", __func__); - sc->beacon.bslot[i] = NULL; - sc->beacon.bslot_aphy[i] = NULL; - } else if (sc->beacon.bslot[i]) - bs_valid = true; - } - if (!bs_valid && (sc->sc_ah->imask & ATH9K_INT_SWBA)) { - /* Disable SWBA interrupt */ - sc->sc_ah->imask &= ~ATH9K_INT_SWBA; + if (sc->nbcnvifs) { + /* Re-enable SWBA interrupt */ + sc->sc_ah->imask |= ATH9K_INT_SWBA; ath9k_ps_wakeup(sc); ath9k_hw_set_interrupts(sc->sc_ah, sc->sc_ah->imask); ath9k_ps_restore(sc); -- cgit v0.10.2 From e8f149924a3111015d16dfbbb4816cfc75ba53cd Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Tue, 7 Dec 2010 19:47:34 +0000 Subject: sfc: Fix NAPI list corruption during ring reallocation Call netif_napi_{add,del}() on the NAPI contexts in the new and old channels, respectively. Since efx_init_napi() cannot fail, make its return type void. Signed-off-by: Ben Hutchings diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c index d06cb74..fb83cdd 100644 --- a/drivers/net/sfc/efx.c +++ b/drivers/net/sfc/efx.c @@ -197,7 +197,9 @@ MODULE_PARM_DESC(debug, "Bitmapped debugging message enable value"); static void efx_remove_channels(struct efx_nic *efx); static void efx_remove_port(struct efx_nic *efx); +static void efx_init_napi(struct efx_nic *efx); static void efx_fini_napi(struct efx_nic *efx); +static void efx_fini_napi_channel(struct efx_channel *channel); static void efx_fini_struct(struct efx_nic *efx); static void efx_start_all(struct efx_nic *efx); static void efx_stop_all(struct efx_nic *efx); @@ -430,6 +432,7 @@ efx_alloc_channel(struct efx_nic *efx, int i, struct efx_channel *old_channel) *channel = *old_channel; + channel->napi_dev = NULL; memset(&channel->eventq, 0, sizeof(channel->eventq)); rx_queue = &channel->rx_queue; @@ -740,9 +743,13 @@ efx_realloc_channels(struct efx_nic *efx, u32 rxq_entries, u32 txq_entries) if (rc) goto rollback; + efx_init_napi(efx); + /* Destroy old channels */ - for (i = 0; i < efx->n_channels; i++) + for (i = 0; i < efx->n_channels; i++) { + efx_fini_napi_channel(other_channel[i]); efx_remove_channel(other_channel[i]); + } out: /* Free unused channel structures */ for (i = 0; i < efx->n_channels; i++) @@ -1601,7 +1608,7 @@ static int efx_ioctl(struct net_device *net_dev, struct ifreq *ifr, int cmd) * **************************************************************************/ -static int efx_init_napi(struct efx_nic *efx) +static void efx_init_napi(struct efx_nic *efx) { struct efx_channel *channel; @@ -1610,18 +1617,21 @@ static int efx_init_napi(struct efx_nic *efx) netif_napi_add(channel->napi_dev, &channel->napi_str, efx_poll, napi_weight); } - return 0; +} + +static void efx_fini_napi_channel(struct efx_channel *channel) +{ + if (channel->napi_dev) + netif_napi_del(&channel->napi_str); + channel->napi_dev = NULL; } static void efx_fini_napi(struct efx_nic *efx) { struct efx_channel *channel; - efx_for_each_channel(channel, efx) { - if (channel->napi_dev) - netif_napi_del(&channel->napi_str); - channel->napi_dev = NULL; - } + efx_for_each_channel(channel, efx) + efx_fini_napi_channel(channel); } /************************************************************************** @@ -2343,9 +2353,7 @@ static int efx_pci_probe_main(struct efx_nic *efx) if (rc) goto fail1; - rc = efx_init_napi(efx); - if (rc) - goto fail2; + efx_init_napi(efx); rc = efx->type->init(efx); if (rc) { @@ -2376,7 +2384,6 @@ static int efx_pci_probe_main(struct efx_nic *efx) efx->type->fini(efx); fail3: efx_fini_napi(efx); - fail2: efx_remove_all(efx); fail1: return rc; -- cgit v0.10.2 From ecf6f5e7d68471b08603f7c20143ac236602364f Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Mon, 8 Nov 2010 18:08:14 -0500 Subject: fanotify: deny permissions when no event was sent If no event was sent to userspace we cannot expect userspace to respond to permissions requests. Today such requests just hang forever. This patch will deny any permissions event which was unable to be sent to userspace. Reported-by: Tvrtko Ursulin Signed-off-by: Eric Paris diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c index 0632248..045c079 100644 --- a/fs/notify/fanotify/fanotify_user.c +++ b/fs/notify/fanotify/fanotify_user.c @@ -106,7 +106,7 @@ static int create_fd(struct fsnotify_group *group, struct fsnotify_event *event) return client_fd; } -static ssize_t fill_event_metadata(struct fsnotify_group *group, +static int fill_event_metadata(struct fsnotify_group *group, struct fanotify_event_metadata *metadata, struct fsnotify_event *event) { @@ -257,10 +257,11 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group, pr_debug("%s: group=%p event=%p\n", __func__, group, event); - fd = fill_event_metadata(group, &fanotify_event_metadata, event); - if (fd < 0) - return fd; + ret = fill_event_metadata(group, &fanotify_event_metadata, event); + if (ret < 0) + goto out; + fd = ret; ret = prepare_for_access_response(group, event, fd); if (ret) goto out_close_fd; @@ -275,6 +276,13 @@ out_kill_access_response: remove_access_response(group, event, fd); out_close_fd: sys_close(fd); +out: +#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS + if (event->mask & FAN_ALL_PERM_EVENTS) { + event->response = FAN_DENY; + wake_up(&group->fanotify_data.access_waitq); + } +#endif return ret; } -- cgit v0.10.2 From 88d60c32765716289abeb362c44adf6c35c6824c Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Mon, 8 Nov 2010 18:19:22 -0500 Subject: fanotify: remove packed from access response message Since fanotify has decided to be careful about alignment and packing rather than rely on __attribute__((packed)) for multiarch support. Since this attribute isn't doing anything on fanotify_response we just drop it. This does not break API/ABI. Suggested-by: Tvrtko Ursulin Signed-off-by: Eric Paris diff --git a/include/linux/fanotify.h b/include/linux/fanotify.h index 0f01214..bdbf9bb 100644 --- a/include/linux/fanotify.h +++ b/include/linux/fanotify.h @@ -96,7 +96,7 @@ struct fanotify_event_metadata { struct fanotify_response { __s32 fd; __u32 response; -} __attribute__ ((packed)); +}; /* Legit userspace responses to a _PERM event */ #define FAN_ALLOW 0x01 -- cgit v0.10.2 From b1085ba80cd2784400a7beec3fda5099198ed01c Mon Sep 17 00:00:00 2001 From: Lino Sanfilippo Date: Fri, 5 Nov 2010 17:05:27 +0100 Subject: fanotify: if set by user unset FMODE_NONOTIFY before fsnotify_perm() is called Unsetting FMODE_NONOTIFY in fsnotify_open() is too late, since fsnotify_perm() is called before. If FMODE_NONOTIFY is set fsnotify_perm() will skip permission checks, so a user can still disable permission checks by setting this flag in an open() call. This patch corrects this by unsetting the flag before fsnotify_perm is called. Signed-off-by: Lino Sanfilippo Signed-off-by: Eric Paris diff --git a/fs/namei.c b/fs/namei.c index 5362af9..4ff7ca5 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -1748,6 +1748,9 @@ struct file *do_filp_open(int dfd, const char *pathname, if (!(open_flag & O_CREAT)) mode = 0; + /* Must never be set by userspace */ + open_flag &= ~FMODE_NONOTIFY; + /* * O_SYNC is implemented as __O_SYNC|O_DSYNC. As many places only * check for O_DSYNC if the need any syncing at all we enforce it's diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h index 5c185fa..b10bcde 100644 --- a/include/linux/fsnotify.h +++ b/include/linux/fsnotify.h @@ -235,9 +235,6 @@ static inline void fsnotify_open(struct file *file) if (S_ISDIR(inode->i_mode)) mask |= FS_ISDIR; - /* FMODE_NONOTIFY must never be set from user */ - file->f_mode &= ~FMODE_NONOTIFY; - fsnotify_parent(path, NULL, mask); fsnotify(inode, mask, path, FSNOTIFY_EVENT_PATH, NULL, 0); } -- cgit v0.10.2 From fa218ab98c31eeacd12b89501e6b99d146ea56cc Mon Sep 17 00:00:00 2001 From: Lino Sanfilippo Date: Tue, 9 Nov 2010 18:18:16 +0100 Subject: fanotify: correct broken ref counting in case adding a mark failed If adding a mount or inode mark failed fanotify_free_mark() is called explicitly. But at this time the mark has already been put into the destroy list of the fsnotify_mark kernel thread. If the thread is too slow it will try to decrease the reference of a mark, that has already been freed by fanotify_free_mark(). (If its fast enough it will only decrease the marks ref counter from 2 to 1 - note that the counter has been increased to 2 in add_mark() - which has practically no effect.) This patch fixes the ref counting by not calling free_mark() explicitly, but decreasing the ref counter and rely on the fsnotify_mark thread to cleanup in case adding the mark has failed. Signed-off-by: Lino Sanfilippo Signed-off-by: Eric Paris diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c index 045c079..c0ca1fa 100644 --- a/fs/notify/fanotify/fanotify_user.c +++ b/fs/notify/fanotify/fanotify_user.c @@ -594,11 +594,10 @@ static int fanotify_add_vfsmount_mark(struct fsnotify_group *group, { struct fsnotify_mark *fsn_mark; __u32 added; + int ret = 0; fsn_mark = fsnotify_find_vfsmount_mark(group, mnt); if (!fsn_mark) { - int ret; - if (atomic_read(&group->num_marks) > group->fanotify_data.max_marks) return -ENOSPC; @@ -608,17 +607,16 @@ static int fanotify_add_vfsmount_mark(struct fsnotify_group *group, fsnotify_init_mark(fsn_mark, fanotify_free_mark); ret = fsnotify_add_mark(fsn_mark, group, NULL, mnt, 0); - if (ret) { - fanotify_free_mark(fsn_mark); - return ret; - } + if (ret) + goto err; } added = fanotify_mark_add_to_mask(fsn_mark, mask, flags); - fsnotify_put_mark(fsn_mark); + if (added & ~mnt->mnt_fsnotify_mask) fsnotify_recalc_vfsmount_mask(mnt); - - return 0; +err: + fsnotify_put_mark(fsn_mark); + return ret; } static int fanotify_add_inode_mark(struct fsnotify_group *group, @@ -627,6 +625,7 @@ static int fanotify_add_inode_mark(struct fsnotify_group *group, { struct fsnotify_mark *fsn_mark; __u32 added; + int ret = 0; pr_debug("%s: group=%p inode=%p\n", __func__, group, inode); @@ -642,8 +641,6 @@ static int fanotify_add_inode_mark(struct fsnotify_group *group, fsn_mark = fsnotify_find_inode_mark(group, inode); if (!fsn_mark) { - int ret; - if (atomic_read(&group->num_marks) > group->fanotify_data.max_marks) return -ENOSPC; @@ -653,16 +650,16 @@ static int fanotify_add_inode_mark(struct fsnotify_group *group, fsnotify_init_mark(fsn_mark, fanotify_free_mark); ret = fsnotify_add_mark(fsn_mark, group, inode, NULL, 0); - if (ret) { - fanotify_free_mark(fsn_mark); - return ret; - } + if (ret) + goto err; } added = fanotify_mark_add_to_mask(fsn_mark, mask, flags); - fsnotify_put_mark(fsn_mark); + if (added & ~inode->i_fsnotify_mask) fsnotify_recalc_inode_mask(inode); - return 0; +err: + fsnotify_put_mark(fsn_mark); + return ret; } /* fanotify syscalls */ -- cgit v0.10.2 From 1734dee4e3a296cb72b4819fc2e7ef2440737dff Mon Sep 17 00:00:00 2001 From: Lino Sanfilippo Date: Mon, 22 Nov 2010 18:46:33 +0100 Subject: fanotify: Dont allow a mask of 0 if setting or removing a mark In mark_remove_from_mask() we destroy marks that have their event mask cleared. Thus we should not allow the creation of those marks in the first place. With this patch we check if the mask given from user is 0 in case of FAN_MARK_ADD. If so we return an error. Same for FAN_MARK_REMOVE since this does not have any effect. Signed-off-by: Lino Sanfilippo Signed-off-by: Eric Paris diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c index c0ca1fa..480434c 100644 --- a/fs/notify/fanotify/fanotify_user.c +++ b/fs/notify/fanotify/fanotify_user.c @@ -769,8 +769,10 @@ SYSCALL_DEFINE(fanotify_mark)(int fanotify_fd, unsigned int flags, if (flags & ~FAN_ALL_MARK_FLAGS) return -EINVAL; switch (flags & (FAN_MARK_ADD | FAN_MARK_REMOVE | FAN_MARK_FLUSH)) { - case FAN_MARK_ADD: + case FAN_MARK_ADD: /* fallthrough */ case FAN_MARK_REMOVE: + if (!mask) + return -EINVAL; case FAN_MARK_FLUSH: break; default: -- cgit v0.10.2 From 09e5f14e57c70f9d357862bb56e57026c51092a1 Mon Sep 17 00:00:00 2001 From: Lino Sanfilippo Date: Fri, 19 Nov 2010 10:58:07 +0100 Subject: fanotify: on group destroy allow all waiters to bypass permission check When fanotify_release() is called, there may still be processes waiting for access permission. Currently only processes for which an event has already been queued into the groups access list will be woken up. Processes for which no event has been queued will continue to sleep and thus cause a deadlock when fsnotify_put_group() is called. Furthermore there is a race allowing further processes to be waiting on the access wait queue after wake_up (if they arrive before clear_marks_by_group() is called). This patch corrects this by setting a flag to inform processes that the group is about to be destroyed and thus not to wait for access permission. [additional changelog from eparis] Lets think about the 4 relevant code paths from the PoV of the 'operator' 'listener' 'responder' and 'closer'. Where operator is the process doing an action (like open/read) which could require permission. Listener is the task (or in this case thread) slated with reading from the fanotify file descriptor. The 'responder' is the thread responsible for responding to access requests. 'Closer' is the thread attempting to close the fanotify file descriptor. The 'operator' is going to end up in: fanotify_handle_event() get_response_from_access() (THIS BLOCKS WAITING ON USERSPACE) The 'listener' interesting code path fanotify_read() copy_event_to_user() prepare_for_access_response() (THIS CREATES AN fanotify_response_event) The 'responder' code path: fanotify_write() process_access_response() (REMOVE A fanotify_response_event, SET RESPONSE, WAKE UP 'operator') The 'closer': fanotify_release() (SUPPOSED TO CLEAN UP THE REST OF THIS MESS) What we have today is that in the closer we remove all of the fanotify_response_events and set a bit so no more response events are ever created in prepare_for_access_response(). The bug is that we never wake all of the operators up and tell them to move along. You fix that in fanotify_get_response_from_access(). You also fix other operators which haven't gotten there yet. So I agree that's a good fix. [/additional changelog from eparis] [remove additional changes to minimize patch size] [move initialization so it was inside CONFIG_FANOTIFY_PERMISSION] Signed-off-by: Lino Sanfilippo Signed-off-by: Eric Paris diff --git a/fs/notify/fanotify/fanotify.c b/fs/notify/fanotify/fanotify.c index b04f88e..f35794b 100644 --- a/fs/notify/fanotify/fanotify.c +++ b/fs/notify/fanotify/fanotify.c @@ -92,7 +92,11 @@ static int fanotify_get_response_from_access(struct fsnotify_group *group, pr_debug("%s: group=%p event=%p\n", __func__, group, event); - wait_event(group->fanotify_data.access_waitq, event->response); + wait_event(group->fanotify_data.access_waitq, event->response || + atomic_read(&group->fanotify_data.bypass_perm)); + + if (!event->response) /* bypass_perm set */ + return 0; /* userspace responded, convert to something usable */ spin_lock(&event->lock); diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c index 480434c..01fffe6 100644 --- a/fs/notify/fanotify/fanotify_user.c +++ b/fs/notify/fanotify/fanotify_user.c @@ -200,7 +200,7 @@ static int prepare_for_access_response(struct fsnotify_group *group, mutex_lock(&group->fanotify_data.access_mutex); - if (group->fanotify_data.bypass_perm) { + if (atomic_read(&group->fanotify_data.bypass_perm)) { mutex_unlock(&group->fanotify_data.access_mutex); kmem_cache_free(fanotify_response_event_cache, re); event->response = FAN_ALLOW; @@ -390,7 +390,7 @@ static int fanotify_release(struct inode *ignored, struct file *file) mutex_lock(&group->fanotify_data.access_mutex); - group->fanotify_data.bypass_perm = true; + atomic_inc(&group->fanotify_data.bypass_perm); list_for_each_entry_safe(re, lre, &group->fanotify_data.access_list, list) { pr_debug("%s: found group=%p re=%p event=%p\n", __func__, group, @@ -703,6 +703,7 @@ SYSCALL_DEFINE2(fanotify_init, unsigned int, flags, unsigned int, event_f_flags) mutex_init(&group->fanotify_data.access_mutex); init_waitqueue_head(&group->fanotify_data.access_waitq); INIT_LIST_HEAD(&group->fanotify_data.access_list); + atomic_set(&group->fanotify_data.bypass_perm, 0); #endif switch (flags & FAN_ALL_CLASS_BITS) { case FAN_CLASS_NOTIF: diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h index 0a68f92..7380763 100644 --- a/include/linux/fsnotify_backend.h +++ b/include/linux/fsnotify_backend.h @@ -166,7 +166,7 @@ struct fsnotify_group { struct mutex access_mutex; struct list_head access_list; wait_queue_head_t access_waitq; - bool bypass_perm; /* protected by access_mutex */ + atomic_t bypass_perm; #endif /* CONFIG_FANOTIFY_ACCESS_PERMISSIONS */ int f_flags; unsigned int max_marks; -- cgit v0.10.2 From a2ae4cc9a16e211c8a128ba10d22a85431f093ab Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Tue, 23 Nov 2010 18:18:37 -0500 Subject: inotify: stop kernel memory leak on file creation failure If inotify_init is unable to allocate a new file for the new inotify group we leak the new group. This patch drops the reference on the group on file allocation failure. Reported-by: Vegard Nossum cc: stable@kernel.org Signed-off-by: Eric Paris diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c index 444c305..4cd5d5d 100644 --- a/fs/notify/inotify/inotify_user.c +++ b/fs/notify/inotify/inotify_user.c @@ -752,6 +752,7 @@ SYSCALL_DEFINE1(inotify_init1, int, flags) if (ret >= 0) return ret; + fsnotify_put_group(group); atomic_dec(&user->inotify_devs); out_free_uid: free_uid(user); -- cgit v0.10.2 From 26379198937fcc9bbe7be76be695d06df8334eaa Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Tue, 23 Nov 2010 23:48:26 -0500 Subject: fanotify: do not leak user reference on allocation failure If fanotify_init is unable to allocate a new fsnotify group it will return but will not drop its reference on the associated user struct. Drop that reference on error. Reported-by: Vegard Nossum Signed-off-by: Eric Paris diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c index 01fffe6..ca54957 100644 --- a/fs/notify/fanotify/fanotify_user.c +++ b/fs/notify/fanotify/fanotify_user.c @@ -692,8 +692,10 @@ SYSCALL_DEFINE2(fanotify_init, unsigned int, flags, unsigned int, event_f_flags) /* fsnotify_alloc_group takes a ref. Dropped in fanotify_release */ group = fsnotify_alloc_group(&fanotify_fsnotify_ops); - if (IS_ERR(group)) + if (IS_ERR(group)) { + free_uid(user); return PTR_ERR(group); + } group->fanotify_data.user = user; atomic_inc(&user->fanotify_listeners); -- cgit v0.10.2 From e9a3854fd4ff3907e6c200a3980e19365ee695e9 Mon Sep 17 00:00:00 2001 From: Lino Sanfilippo Date: Wed, 24 Nov 2010 18:22:09 +0100 Subject: fanotify: Introduce FAN_NOFD FAN_NOFD is used in fanotify events that do not provide an open file descriptor (like the overflow_event). Signed-off-by: Lino Sanfilippo Signed-off-by: Eric Paris diff --git a/include/linux/fanotify.h b/include/linux/fanotify.h index bdbf9bb..c732243 100644 --- a/include/linux/fanotify.h +++ b/include/linux/fanotify.h @@ -101,6 +101,8 @@ struct fanotify_response { /* Legit userspace responses to a _PERM event */ #define FAN_ALLOW 0x01 #define FAN_DENY 0x02 +/* No fd set in event */ +#define FAN_NOFD -1 /* Helper functions to deal with fanotify_event_metadata buffers */ #define FAN_EVENT_METADATA_LEN (sizeof(struct fanotify_event_metadata)) -- cgit v0.10.2 From fdbf3ceeb659f0b3c0e8dd79b331b7ac05910f1e Mon Sep 17 00:00:00 2001 From: Lino Sanfilippo Date: Wed, 24 Nov 2010 18:26:04 +0100 Subject: fanotify: Dont try to open a file descriptor for the overflow event We should not try to open a file descriptor for the overflow event since this will always fail. Signed-off-by: Lino Sanfilippo Signed-off-by: Eric Paris diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c index ca54957..dccd798 100644 --- a/fs/notify/fanotify/fanotify_user.c +++ b/fs/notify/fanotify/fanotify_user.c @@ -110,6 +110,8 @@ static int fill_event_metadata(struct fsnotify_group *group, struct fanotify_event_metadata *metadata, struct fsnotify_event *event) { + int ret = 0; + pr_debug("%s: group=%p metadata=%p event=%p\n", __func__, group, metadata, event); @@ -117,9 +119,15 @@ static int fill_event_metadata(struct fsnotify_group *group, metadata->vers = FANOTIFY_METADATA_VERSION; metadata->mask = event->mask & FAN_ALL_OUTGOING_EVENTS; metadata->pid = pid_vnr(event->tgid); - metadata->fd = create_fd(group, event); + if (unlikely(event->mask & FAN_Q_OVERFLOW)) + metadata->fd = FAN_NOFD; + else { + metadata->fd = create_fd(group, event); + if (metadata->fd < 0) + ret = metadata->fd; + } - return metadata->fd; + return ret; } #ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS @@ -261,7 +269,7 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group, if (ret < 0) goto out; - fd = ret; + fd = fanotify_event_metadata.fd; ret = prepare_for_access_response(group, event, fd); if (ret) goto out_close_fd; @@ -275,7 +283,8 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group, out_kill_access_response: remove_access_response(group, event, fd); out_close_fd: - sys_close(fd); + if (fd != FAN_NOFD) + sys_close(fd); out: #ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS if (event->mask & FAN_ALL_PERM_EVENTS) { -- cgit v0.10.2 From 1b39d6f37622f1da70aa2cfd38bfff9a52c13e05 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Mon, 6 Dec 2010 11:20:45 +0000 Subject: drm/i915/dp: Only apply the workaround if the select is still active As we may try to power down the link at various times, it is not necessarily still coupled with an encoder and so we must be careful not to depend upon an operation that is only valid when the link is still attached to a pipe. Fixes regression in 5bddd17. Reported-and-tested-by: Daniel Vetter Signed-off-by: Chris Wilson Cc: stable@kernel.org [after applying 5bddd17] diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 1d8d068..df648cb 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1374,9 +1374,11 @@ intel_dp_link_down(struct intel_dp *intel_dp) { struct drm_device *dev = intel_dp->base.base.dev; struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_crtc *intel_crtc = to_intel_crtc(intel_dp->base.base.crtc); uint32_t DP = intel_dp->DP; + if ((I915_READ(intel_dp->output_reg) & DP_PORT_EN) == 0) + return; + DRM_DEBUG_KMS("\n"); if (is_edp(intel_dp)) { @@ -1400,7 +1402,9 @@ intel_dp_link_down(struct intel_dp *intel_dp) if (is_edp(intel_dp)) DP |= DP_LINK_TRAIN_OFF; - if (!HAS_PCH_CPT(dev) && (DP & DP_PIPEB_SELECT)) { + if (!HAS_PCH_CPT(dev) && + I915_READ(intel_dp->output_reg) & DP_PIPEB_SELECT) { + struct intel_crtc *intel_crtc = to_intel_crtc(intel_dp->base.base.crtc); /* Hardware workaround: leaving our transcoder select * set to transcoder B while it's off will prevent the * corresponding HDMI output on transcoder A. -- cgit v0.10.2 From 943d8d8bca431d6c93f17bf38f4b09c65e0a81d7 Mon Sep 17 00:00:00 2001 From: Tomoya MORINAGA Date: Wed, 1 Dec 2010 19:49:48 +0900 Subject: dma : EG20T PCH: Fix miss-setting DMA descriptor Currently, in case of using scatter/gather mode, head of data is not sent to destination. The cause is second descriptor address is set to NEXT. The NEXT must have head of descriptor address. This patch sets head of descriptor address to the NEXT. Acked-by: Yong Wang Signed-off-by: Tomoya MORINAGA [dan.j.williams@intel.com: fixed up usage of virt_to_phys()] Signed-off-by: Dan Williams diff --git a/drivers/dma/pch_dma.c b/drivers/dma/pch_dma.c index 92b6790..c064c89 100644 --- a/drivers/dma/pch_dma.c +++ b/drivers/dma/pch_dma.c @@ -259,11 +259,6 @@ static void pdc_dostart(struct pch_dma_chan *pd_chan, struct pch_dma_desc* desc) return; } - channel_writel(pd_chan, DEV_ADDR, desc->regs.dev_addr); - channel_writel(pd_chan, MEM_ADDR, desc->regs.mem_addr); - channel_writel(pd_chan, SIZE, desc->regs.size); - channel_writel(pd_chan, NEXT, desc->regs.next); - dev_dbg(chan2dev(&pd_chan->chan), "chan %d -> dev_addr: %x\n", pd_chan->chan.chan_id, desc->regs.dev_addr); dev_dbg(chan2dev(&pd_chan->chan), "chan %d -> mem_addr: %x\n", @@ -273,10 +268,16 @@ static void pdc_dostart(struct pch_dma_chan *pd_chan, struct pch_dma_desc* desc) dev_dbg(chan2dev(&pd_chan->chan), "chan %d -> next: %x\n", pd_chan->chan.chan_id, desc->regs.next); - if (list_empty(&desc->tx_list)) + if (list_empty(&desc->tx_list)) { + channel_writel(pd_chan, DEV_ADDR, desc->regs.dev_addr); + channel_writel(pd_chan, MEM_ADDR, desc->regs.mem_addr); + channel_writel(pd_chan, SIZE, desc->regs.size); + channel_writel(pd_chan, NEXT, desc->regs.next); pdc_set_mode(&pd_chan->chan, DMA_CTL0_ONESHOT); - else + } else { + channel_writel(pd_chan, NEXT, desc->txd.phys); pdc_set_mode(&pd_chan->chan, DMA_CTL0_SG); + } val = dma_readl(pd, CTL2); val |= 1 << (DMA_CTL2_START_SHIFT_BITS + pd_chan->chan.chan_id); -- cgit v0.10.2 From ea5d552c73707645c53d42e8a71c9a4d9cbb85c1 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Wed, 1 Dec 2010 19:41:31 +0000 Subject: drm: Add missing drm_vblank_put() along queue vblank error path MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Chris Wilson Cc: Kristian Høgsberg Acked-by: Jesse Barnes Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index 9d3a503..722700d 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -585,10 +585,13 @@ static int drm_queue_vblank_event(struct drm_device *dev, int pipe, struct timeval now; unsigned long flags; unsigned int seq; + int ret; e = kzalloc(sizeof *e, GFP_KERNEL); - if (e == NULL) - return -ENOMEM; + if (e == NULL) { + ret = -ENOMEM; + goto err_put; + } e->pipe = pipe; e->base.pid = current->pid; @@ -603,9 +606,8 @@ static int drm_queue_vblank_event(struct drm_device *dev, int pipe, spin_lock_irqsave(&dev->event_lock, flags); if (file_priv->event_space < sizeof e->event) { - spin_unlock_irqrestore(&dev->event_lock, flags); - kfree(e); - return -ENOMEM; + ret = -EBUSY; + goto err_unlock; } file_priv->event_space -= sizeof e->event; @@ -638,6 +640,13 @@ static int drm_queue_vblank_event(struct drm_device *dev, int pipe, spin_unlock_irqrestore(&dev->event_lock, flags); return 0; + +err_unlock: + spin_unlock_irqrestore(&dev->event_lock, flags); + kfree(e); +err_put: + drm_vblank_put(dev, e->pipe); + return ret; } /** -- cgit v0.10.2 From 541cc966915b6756e54c20eebe60ae957afdb537 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Mon, 6 Dec 2010 11:24:07 +0000 Subject: drm: Don't try and disable an encoder that was never enabled Prevents code that assumes that the encoder is active when asked to be disabled from dying a horrible death. Reported-by: Daniel Vetter Signed-off-by: Chris Wilson Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c index 7ca5935..bede10a 100644 --- a/drivers/gpu/drm/drm_crtc_helper.c +++ b/drivers/gpu/drm/drm_crtc_helper.c @@ -241,7 +241,7 @@ void drm_helper_disable_unused_functions(struct drm_device *dev) } list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { - if (!drm_helper_encoder_in_use(encoder)) { + if (encoder->crtc && !drm_helper_encoder_in_use(encoder)) { drm_encoder_disable(encoder); /* disconnector encoder from any connector */ encoder->crtc = NULL; -- cgit v0.10.2 From 93225b0d7bc030f4a93165347a65893685822d70 Mon Sep 17 00:00:00 2001 From: Jerome Glisse Date: Fri, 3 Dec 2010 16:38:19 -0500 Subject: drm/radeon/kms: forbid big bo allocation (fdo 31708) v3 Forbid allocating buffer bigger than visible VRAM or GTT, also properly set lpfn field. v2 - use max macro - silence warning v3 - don't explicitly set range limit - use min macro Cc: stable Signed-off-by: Jerome Glisse Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c index 1d06774..a598d00 100644 --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -69,7 +69,7 @@ void radeon_ttm_placement_from_domain(struct radeon_bo *rbo, u32 domain) u32 c = 0; rbo->placement.fpfn = 0; - rbo->placement.lpfn = rbo->rdev->mc.active_vram_size >> PAGE_SHIFT; + rbo->placement.lpfn = 0; rbo->placement.placement = rbo->placements; rbo->placement.busy_placement = rbo->placements; if (domain & RADEON_GEM_DOMAIN_VRAM) @@ -91,7 +91,8 @@ int radeon_bo_create(struct radeon_device *rdev, struct drm_gem_object *gobj, { struct radeon_bo *bo; enum ttm_bo_type type; - int page_align = roundup(byte_align, PAGE_SIZE) >> PAGE_SHIFT; + unsigned long page_align = roundup(byte_align, PAGE_SIZE) >> PAGE_SHIFT; + unsigned long max_size = 0; int r; if (unlikely(rdev->mman.bdev.dev_mapping == NULL)) { @@ -104,6 +105,14 @@ int radeon_bo_create(struct radeon_device *rdev, struct drm_gem_object *gobj, } *bo_ptr = NULL; + /* maximun bo size is the minimun btw visible vram and gtt size */ + max_size = min(rdev->mc.visible_vram_size, rdev->mc.gtt_size); + if ((page_align << PAGE_SHIFT) >= max_size) { + printk(KERN_WARNING "%s:%d alloc size %ldM bigger than %ldMb limit\n", + __func__, __LINE__, page_align >> (20 - PAGE_SHIFT), max_size >> 20); + return -ENOMEM; + } + retry: bo = kzalloc(sizeof(struct radeon_bo), GFP_KERNEL); if (bo == NULL) -- cgit v0.10.2 From dd7cc55a258400440aff5869d3e1e111142297cd Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 3 Dec 2010 14:37:21 -0500 Subject: drm/radeon/kms: fix formatting of vram and gtt info print the full 64 bit values. Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index d8ac184..e12e793 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -286,7 +286,7 @@ void radeon_vram_location(struct radeon_device *rdev, struct radeon_mc *mc, u64 mc->mc_vram_size = mc->aper_size; } mc->vram_end = mc->vram_start + mc->mc_vram_size - 1; - dev_info(rdev->dev, "VRAM: %lluM 0x%08llX - 0x%08llX (%lluM used)\n", + dev_info(rdev->dev, "VRAM: %lluM 0x%016llX - 0x%016llX (%lluM used)\n", mc->mc_vram_size >> 20, mc->vram_start, mc->vram_end, mc->real_vram_size >> 20); } @@ -323,7 +323,7 @@ void radeon_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc) mc->gtt_start = (mc->vram_end + 1 + mc->gtt_base_align) & ~mc->gtt_base_align; } mc->gtt_end = mc->gtt_start + mc->gtt_size - 1; - dev_info(rdev->dev, "GTT: %lluM 0x%08llX - 0x%08llX\n", + dev_info(rdev->dev, "GTT: %lluM 0x%016llX - 0x%016llX\n", mc->gtt_size >> 20, mc->gtt_start, mc->gtt_end); } -- cgit v0.10.2 From 8961d52d4cc52edf5672f8f2712c57162b736793 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 3 Dec 2010 14:37:22 -0500 Subject: drm/radeon/kms: fix vram base calculation on rs780/rs880 Avoid overflowing a 32 bit value. Signed-off-by: Alex Deucher Cc: stable@kernel.org Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index a355259..a322d4f 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -1195,8 +1195,10 @@ void r600_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc) mc->vram_end, mc->real_vram_size >> 20); } else { u64 base = 0; - if (rdev->flags & RADEON_IS_IGP) - base = (RREG32(MC_VM_FB_LOCATION) & 0xFFFF) << 24; + if (rdev->flags & RADEON_IS_IGP) { + base = RREG32(MC_VM_FB_LOCATION) & 0xFFFF; + base <<= 24; + } radeon_vram_location(rdev, &rdev->mc, base); rdev->mc.gtt_base_align = 0; radeon_gtt_location(rdev, mc); -- cgit v0.10.2 From c989a7fc139ec8975fdc230e2de42f3c4555880e Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Mon, 6 Dec 2010 11:09:57 +0100 Subject: dmaengine i.MX SDMA: initialize on module_init The firmware framework gets initialized during fs_initcall time, so we are not allowed to call request_firmware earlier. Signed-off-by: Sascha Hauer Signed-off-by: Dan Williams diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index 13d6447..d0602dd 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -1385,7 +1385,7 @@ static int __init sdma_module_init(void) { return platform_driver_probe(&sdma_driver, sdma_probe); } -subsys_initcall(sdma_module_init); +module_init(sdma_module_init); MODULE_AUTHOR("Sascha Hauer, Pengutronix "); MODULE_DESCRIPTION("i.MX SDMA driver"); -- cgit v0.10.2 From 08a22b392a141c201d7ed4d435de942aa853acd3 Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Wed, 1 Dec 2010 10:42:16 +0000 Subject: nfs: Discard ACL cache on mode update An update of mode bits can result in ACL value being changed. We need to mark the acl cache invalid when we update mode. Similarly we need to update file attribute when we change ACL value Signed-off-by: Aneesh Kumar K.V Signed-off-by: Trond Myklebust diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 6a653ff..4435e5e 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -3361,6 +3361,8 @@ static ssize_t nfs4_proc_get_acl(struct inode *inode, void *buf, size_t buflen) ret = nfs_revalidate_inode(server, inode); if (ret < 0) return ret; + if (NFS_I(inode)->cache_validity & NFS_INO_INVALID_ACL) + nfs_zap_acl_cache(inode); ret = nfs4_read_cached_acl(inode, buf, buflen); if (ret != -ENOENT) return ret; @@ -3389,6 +3391,13 @@ static int __nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t bufl nfs_inode_return_delegation(inode); buf_to_pages(buf, buflen, arg.acl_pages, &arg.acl_pgbase); ret = nfs4_call_sync(server, &msg, &arg, &res, 1); + /* + * Acl update can result in inode attribute update. + * so mark the attribute cache invalid. + */ + spin_lock(&inode->i_lock); + NFS_I(inode)->cache_validity |= NFS_INO_INVALID_ATTR; + spin_unlock(&inode->i_lock); nfs_access_zap_cache(inode); nfs_zap_acl_cache(inode); return ret; -- cgit v0.10.2 From 21ac19d484a8ffb66f64487846c8d53afef04d2b Mon Sep 17 00:00:00 2001 From: Sergey Vlasov Date: Sun, 28 Nov 2010 21:04:05 +0000 Subject: NFS: Fix fcntl F_GETLK not reporting some conflicts The commit 129a84de2347002f09721cda3155ccfd19fade40 (locks: fix F_GETLK regression (failure to find conflicts)) fixed the posix_test_lock() function by itself, however, its usage in NFS changed by the commit 9d6a8c5c213e34c475e72b245a8eb709258e968c (locks: give posix_test_lock same interface as ->lock) remained broken - subsequent NFS-specific locking code received F_UNLCK instead of the user-specified lock type. To fix the problem, fl->fl_type needs to be saved before the posix_test_lock() call and restored if no local conflicts were reported. Reference: https://bugzilla.kernel.org/show_bug.cgi?id=23892 Tested-by: Alexander Morozov Signed-off-by: Sergey Vlasov Cc: Signed-off-by: Trond Myklebust diff --git a/fs/nfs/file.c b/fs/nfs/file.c index 60677f9..7bf029e 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -693,6 +693,7 @@ do_getlk(struct file *filp, int cmd, struct file_lock *fl, int is_local) { struct inode *inode = filp->f_mapping->host; int status = 0; + unsigned int saved_type = fl->fl_type; /* Try local locking first */ posix_test_lock(filp, fl); @@ -700,6 +701,7 @@ do_getlk(struct file *filp, int cmd, struct file_lock *fl, int is_local) /* found a conflict */ goto out; } + fl->fl_type = saved_type; if (nfs_have_delegation(inode, FMODE_READ)) goto out_noconflict; -- cgit v0.10.2 From 0de1b7e800188782973598158e0acbb9e08e6c99 Mon Sep 17 00:00:00 2001 From: Mi Jinlong Date: Sat, 30 Oct 2010 10:19:33 +0800 Subject: nfs: kernel should return EPROTONOSUPPORT when not support NFSv4 When nfs client(kernel) don't support NFSv4, maybe user build kernel without NFSv4, there is a problem. Using command "mount SERVER-IP:/nfsv3 /mnt/" to mount NFSv3 filesystem, mount should should success, but fail and get error: "mount.nfs: an incorrect mount option was specified" System call mount "nfs"(not "nfs4") with "vers=4", if CONFIG_NFS_V4 is not defined, the "vers=4" will be parsed as invalid argument and kernel return EINVAL to nfs-utils. About that, we really want get EPROTONOSUPPORT rather than EINVAL. This path make sure kernel parses argument success, and return EPROTONOSUPPORT at nfs_validate_mount_data(). Signed-off-by: Mi Jinlong Signed-off-by: Trond Myklebust diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 3c04504..4100630 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -1069,12 +1069,10 @@ static int nfs_parse_mount_options(char *raw, mnt->flags |= NFS_MOUNT_VER3; mnt->version = 3; break; -#ifdef CONFIG_NFS_V4 case Opt_v4: mnt->flags &= ~NFS_MOUNT_VER3; mnt->version = 4; break; -#endif case Opt_udp: mnt->flags &= ~NFS_MOUNT_TCP; mnt->nfs_server.protocol = XPRT_TRANSPORT_UDP; @@ -1286,12 +1284,10 @@ static int nfs_parse_mount_options(char *raw, mnt->flags |= NFS_MOUNT_VER3; mnt->version = 3; break; -#ifdef CONFIG_NFS_V4 case NFS4_VERSION: mnt->flags &= ~NFS_MOUNT_VER3; mnt->version = 4; break; -#endif default: goto out_invalid_value; } -- cgit v0.10.2 From 812c4e40c27b6ea103ecfbf91d43654356629b81 Mon Sep 17 00:00:00 2001 From: Vasily Khoruzhick Date: Wed, 1 Dec 2010 08:29:23 +0200 Subject: ARM: S3C24XX: Fix mess with gpio {set,get}_pull callbacks Currently the {set,get}_pull callbacks of the s3c24xx_gpiocfg_default structure are initalized via s3c_gpio_{get,set}pull_1up. This results in a linker error when only CONFIG_CPU_S3C2442 is selected: arch/arm/plat-s3c24xx/built-in.o:(.data+0x13f4): undefined reference to `s3c_gpio_getpull_1up' arch/arm/plat-s3c24xx/built-in.o:(.data+0x13f8): undefined reference to `s3c_gpio_setpull_1up' The s3c2442 has pulldowns instead of pullups compared to the s3c2440. The method of controlling them is the same though. So this patch modifies the existing s3c_gpio_{get,set}pull_1up helper functions to take an additional parameter deciding whether the pin has a pullup or pulldown. The s3c_gpio_{get,set}pull_1{down,up} functions then wrap that functions passing either S3C_GPIO_PULL_UP or S3C_GPIO_PULL_DOWN. Furthermore this patch sets up the s3c24xx_gpiocfg_default.{get,set}_pull fields in the s3c244{0,2}_map_io function to the new pulldown helper functions. Based on patch from "Lars-Peter Clausen" Signed-off-by: Vasily Khoruzhick Signed-off-by: Ben Dooks diff --git a/arch/arm/mach-s3c2440/Kconfig b/arch/arm/mach-s3c2440/Kconfig index adea6b9..a0cb258 100644 --- a/arch/arm/mach-s3c2440/Kconfig +++ b/arch/arm/mach-s3c2440/Kconfig @@ -18,6 +18,7 @@ config CPU_S3C2440 config CPU_S3C2442 bool select CPU_ARM920T + select S3C_GPIO_PULL_DOWN select S3C2410_CLOCK select S3C2410_GPIO select S3C2410_PM if PM diff --git a/arch/arm/mach-s3c2440/s3c2440.c b/arch/arm/mach-s3c2440/s3c2440.c index d50f3ae..f7663f7 100644 --- a/arch/arm/mach-s3c2440/s3c2440.c +++ b/arch/arm/mach-s3c2440/s3c2440.c @@ -46,9 +46,6 @@ int __init s3c2440_init(void) { printk("S3C2440: Initialising architecture\n"); - s3c24xx_gpiocfg_default.set_pull = s3c_gpio_setpull_1up; - s3c24xx_gpiocfg_default.get_pull = s3c_gpio_getpull_1up; - /* change irq for watchdog */ s3c_device_wdt.resource[1].start = IRQ_S3C2440_WDT; @@ -58,3 +55,11 @@ int __init s3c2440_init(void) return sysdev_register(&s3c2440_sysdev); } + +void __init s3c2440_map_io(void) +{ + s3c244x_map_io(); + + s3c24xx_gpiocfg_default.set_pull = s3c_gpio_setpull_1up; + s3c24xx_gpiocfg_default.get_pull = s3c_gpio_getpull_1up; +} diff --git a/arch/arm/mach-s3c2440/s3c2442.c b/arch/arm/mach-s3c2440/s3c2442.c index 188ad1e..ecf8135 100644 --- a/arch/arm/mach-s3c2440/s3c2442.c +++ b/arch/arm/mach-s3c2440/s3c2442.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #include @@ -43,6 +44,11 @@ #include #include +#include + +#include +#include +#include /* S3C2442 extended clock support */ @@ -163,3 +169,11 @@ int __init s3c2442_init(void) return sysdev_register(&s3c2442_sysdev); } + +void __init s3c2442_map_io(void) +{ + s3c244x_map_io(); + + s3c24xx_gpiocfg_default.set_pull = s3c_gpio_setpull_1down; + s3c24xx_gpiocfg_default.get_pull = s3c_gpio_getpull_1down; +} diff --git a/arch/arm/plat-s3c24xx/cpu.c b/arch/arm/plat-s3c24xx/cpu.c index 76d0858..4a10c0f 100644 --- a/arch/arm/plat-s3c24xx/cpu.c +++ b/arch/arm/plat-s3c24xx/cpu.c @@ -88,7 +88,7 @@ static struct cpu_table cpu_ids[] __initdata = { { .idcode = 0x32440000, .idmask = 0xffffffff, - .map_io = s3c244x_map_io, + .map_io = s3c2440_map_io, .init_clocks = s3c244x_init_clocks, .init_uarts = s3c244x_init_uarts, .init = s3c2440_init, @@ -97,7 +97,7 @@ static struct cpu_table cpu_ids[] __initdata = { { .idcode = 0x32440001, .idmask = 0xffffffff, - .map_io = s3c244x_map_io, + .map_io = s3c2440_map_io, .init_clocks = s3c244x_init_clocks, .init_uarts = s3c244x_init_uarts, .init = s3c2440_init, @@ -106,7 +106,7 @@ static struct cpu_table cpu_ids[] __initdata = { { .idcode = 0x32440aaa, .idmask = 0xffffffff, - .map_io = s3c244x_map_io, + .map_io = s3c2442_map_io, .init_clocks = s3c244x_init_clocks, .init_uarts = s3c244x_init_uarts, .init = s3c2442_init, @@ -115,7 +115,7 @@ static struct cpu_table cpu_ids[] __initdata = { { .idcode = 0x32440aab, .idmask = 0xffffffff, - .map_io = s3c244x_map_io, + .map_io = s3c2442_map_io, .init_clocks = s3c244x_init_clocks, .init_uarts = s3c244x_init_uarts, .init = s3c2442_init, diff --git a/arch/arm/plat-s3c24xx/gpiolib.c b/arch/arm/plat-s3c24xx/gpiolib.c index 24c6f5a..243b641 100644 --- a/arch/arm/plat-s3c24xx/gpiolib.c +++ b/arch/arm/plat-s3c24xx/gpiolib.c @@ -82,8 +82,6 @@ static struct s3c_gpio_cfg s3c24xx_gpiocfg_banka = { struct s3c_gpio_cfg s3c24xx_gpiocfg_default = { .set_config = s3c_gpio_setcfg_s3c24xx, .get_config = s3c_gpio_getcfg_s3c24xx, - .set_pull = s3c_gpio_setpull_1up, - .get_pull = s3c_gpio_getpull_1up, }; struct s3c_gpio_chip s3c24xx_gpios[] = { diff --git a/arch/arm/plat-s3c24xx/include/plat/s3c244x.h b/arch/arm/plat-s3c24xx/include/plat/s3c244x.h index 307248d..89e8d0a 100644 --- a/arch/arm/plat-s3c24xx/include/plat/s3c244x.h +++ b/arch/arm/plat-s3c24xx/include/plat/s3c244x.h @@ -21,17 +21,22 @@ extern void s3c244x_init_clocks(int xtal); #else #define s3c244x_init_clocks NULL #define s3c244x_init_uarts NULL -#define s3c244x_map_io NULL #endif #ifdef CONFIG_CPU_S3C2440 extern int s3c2440_init(void); + +extern void s3c2440_map_io(void); #else #define s3c2440_init NULL +#define s3c2440_map_io NULL #endif #ifdef CONFIG_CPU_S3C2442 extern int s3c2442_init(void); + +extern void s3c2442_map_io(void); #else #define s3c2442_init NULL +#define s3c2442_map_io NULL #endif diff --git a/arch/arm/plat-samsung/gpio-config.c b/arch/arm/plat-samsung/gpio-config.c index b732b77..0aa32f2 100644 --- a/arch/arm/plat-samsung/gpio-config.c +++ b/arch/arm/plat-samsung/gpio-config.c @@ -280,18 +280,17 @@ s3c_gpio_pull_t s3c_gpio_getpull_updown(struct s3c_gpio_chip *chip, } #endif -#ifdef CONFIG_S3C_GPIO_PULL_UP -int s3c_gpio_setpull_1up(struct s3c_gpio_chip *chip, - unsigned int off, s3c_gpio_pull_t pull) +#if defined(CONFIG_S3C_GPIO_PULL_UP) || defined(CONFIG_S3C_GPIO_PULL_DOWN) +static int s3c_gpio_setpull_1(struct s3c_gpio_chip *chip, + unsigned int off, s3c_gpio_pull_t pull, + s3c_gpio_pull_t updown) { void __iomem *reg = chip->base + 0x08; u32 pup = __raw_readl(reg); - pup = __raw_readl(reg); - - if (pup == S3C_GPIO_PULL_UP) + if (pull == updown) pup &= ~(1 << off); - else if (pup == S3C_GPIO_PULL_NONE) + else if (pull == S3C_GPIO_PULL_NONE) pup |= (1 << off); else return -EINVAL; @@ -300,17 +299,45 @@ int s3c_gpio_setpull_1up(struct s3c_gpio_chip *chip, return 0; } -s3c_gpio_pull_t s3c_gpio_getpull_1up(struct s3c_gpio_chip *chip, - unsigned int off) +static s3c_gpio_pull_t s3c_gpio_getpull_1(struct s3c_gpio_chip *chip, + unsigned int off, s3c_gpio_pull_t updown) { void __iomem *reg = chip->base + 0x08; u32 pup = __raw_readl(reg); pup &= (1 << off); - return pup ? S3C_GPIO_PULL_NONE : S3C_GPIO_PULL_UP; + return pup ? S3C_GPIO_PULL_NONE : updown; +} +#endif /* CONFIG_S3C_GPIO_PULL_UP || CONFIG_S3C_GPIO_PULL_DOWN */ + +#ifdef CONFIG_S3C_GPIO_PULL_UP +s3c_gpio_pull_t s3c_gpio_getpull_1up(struct s3c_gpio_chip *chip, + unsigned int off) +{ + return s3c_gpio_getpull_1(chip, off, S3C_GPIO_PULL_UP); +} + +int s3c_gpio_setpull_1up(struct s3c_gpio_chip *chip, + unsigned int off, s3c_gpio_pull_t pull) +{ + return s3c_gpio_setpull_1(chip, off, pull, S3C_GPIO_PULL_UP); } #endif /* CONFIG_S3C_GPIO_PULL_UP */ +#ifdef CONFIG_S3C_GPIO_PULL_DOWN +s3c_gpio_pull_t s3c_gpio_getpull_1down(struct s3c_gpio_chip *chip, + unsigned int off) +{ + return s3c_gpio_getpull_1(chip, off, S3C_GPIO_PULL_DOWN); +} + +int s3c_gpio_setpull_1down(struct s3c_gpio_chip *chip, + unsigned int off, s3c_gpio_pull_t pull) +{ + return s3c_gpio_setpull_1(chip, off, pull, S3C_GPIO_PULL_DOWN); +} +#endif /* CONFIG_S3C_GPIO_PULL_DOWN */ + #ifdef CONFIG_S5P_GPIO_DRVSTR s5p_gpio_drvstr_t s5p_gpio_get_drvstr(unsigned int pin) { diff --git a/arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h b/arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h index 8fd65d8..0d2c570 100644 --- a/arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h +++ b/arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h @@ -210,6 +210,17 @@ extern s3c_gpio_pull_t s3c_gpio_getpull_1up(struct s3c_gpio_chip *chip, unsigned int off); /** + * s3c_gpio_getpull_1down() - Get configuration for choice of down or none + * @chip: The gpio chip that the GPIO pin belongs to + * @off: The offset to the pin to get the configuration of. + * + * This helper function reads the state of the pull-down resistor for the + * given GPIO in the same case as s3c_gpio_setpull_1down. +*/ +extern s3c_gpio_pull_t s3c_gpio_getpull_1down(struct s3c_gpio_chip *chip, + unsigned int off); + +/** * s3c_gpio_setpull_s3c2443() - Pull configuration for s3c2443. * @chip: The gpio chip that is being configured. * @off: The offset for the GPIO being configured. -- cgit v0.10.2 From ed2849d3ecfa339435818eeff28f6c3424300cec Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 16 Nov 2010 16:55:19 +1100 Subject: sunrpc: prevent use-after-free on clearing XPT_BUSY When an xprt is created, it has a refcount of 1, and XPT_BUSY is set. The refcount is *not* owned by the thread that created the xprt (as is clear from the fact that creators never put the reference). Rather, it is owned by the absence of XPT_DEAD. Once XPT_DEAD is set, (And XPT_BUSY is clear) that initial reference is dropped and the xprt can be freed. So when a creator clears XPT_BUSY it is dropping its only reference and so must not touch the xprt again. However svc_recv, after calling ->xpo_accept (and so getting an XPT_BUSY reference on a new xprt), calls svc_xprt_recieved. This clears XPT_BUSY and then svc_xprt_enqueue - this last without owning a reference. This is dangerous and has been seen to leave svc_xprt_enqueue working with an xprt containing garbage. So we need to hold an extra counted reference over that call to svc_xprt_received. For safety, any time we clear XPT_BUSY and then use the xprt again, we first get a reference, and the put it again afterwards. Note that svc_close_all does not need this extra protection as there are no threads running, and the final free can only be called asynchronously from such a thread. Signed-off-by: NeilBrown Cc: stable@kernel.org Signed-off-by: J. Bruce Fields diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c index ea2ff78..3f2c555 100644 --- a/net/sunrpc/svc_xprt.c +++ b/net/sunrpc/svc_xprt.c @@ -212,6 +212,7 @@ int svc_create_xprt(struct svc_serv *serv, const char *xprt_name, spin_lock(&svc_xprt_class_lock); list_for_each_entry(xcl, &svc_xprt_class_list, xcl_list) { struct svc_xprt *newxprt; + unsigned short newport; if (strcmp(xprt_name, xcl->xcl_name)) continue; @@ -230,8 +231,9 @@ int svc_create_xprt(struct svc_serv *serv, const char *xprt_name, spin_lock_bh(&serv->sv_lock); list_add(&newxprt->xpt_list, &serv->sv_permsocks); spin_unlock_bh(&serv->sv_lock); + newport = svc_xprt_local_port(newxprt); clear_bit(XPT_BUSY, &newxprt->xpt_flags); - return svc_xprt_local_port(newxprt); + return newport; } err: spin_unlock(&svc_xprt_class_lock); @@ -425,8 +427,13 @@ void svc_xprt_received(struct svc_xprt *xprt) { BUG_ON(!test_bit(XPT_BUSY, &xprt->xpt_flags)); xprt->xpt_pool = NULL; + /* As soon as we clear busy, the xprt could be closed and + * 'put', so we need a reference to call svc_xprt_enqueue with: + */ + svc_xprt_get(xprt); clear_bit(XPT_BUSY, &xprt->xpt_flags); svc_xprt_enqueue(xprt); + svc_xprt_put(xprt); } EXPORT_SYMBOL_GPL(svc_xprt_received); -- cgit v0.10.2 From e281f7ec95fbbf905c10e11c83231f3d9090c22f Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Tue, 30 Nov 2010 14:17:58 +0000 Subject: arm: omap2: io: fix clk_get() error check clk_get() return value should be checked with IS_ERR(). Signed-off-by: Aaro Koskinen Acked-by: Kevin Hilman Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index 40562dd..a1939b1 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -297,7 +297,7 @@ static int __init _omap2_init_reprogram_sdrc(void) return 0; dpll3_m2_ck = clk_get(NULL, "dpll3_m2_ck"); - if (!dpll3_m2_ck) + if (IS_ERR(dpll3_m2_ck)) return -EINVAL; rate = clk_get_rate(dpll3_m2_ck); -- cgit v0.10.2 From 2df485a774ba59c3f43bfe84107672c1d9b731a0 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 7 Dec 2010 22:39:17 -0500 Subject: nfs: remove extraneous and problematic calls to nfs_clear_request When a nfs_page is freed, nfs_free_request is called which also calls nfs_clear_request to clean out the lock and open contexts and free the pagecache page. However, a couple of places in the nfs code call nfs_clear_request themselves. What happens here if the refcount on the request is still high? We'll be releasing contexts and freeing pointers while the request is possibly still in use. Remove those bare calls to nfs_clear_context. That should only be done when the request is being freed. Note that when doing this, we need to watch out for tests of req->wb_page. Previously, nfs_set_page_tag_locked() and nfs_clear_page_tag_locked() would check the value of req->wb_page to figure out if the page is mapped into the nfsi->nfs_page_tree. We now indicate the page is mapped using the new bit PG_MAPPED in req->wb_flags . Reported-by: Jeff Layton Signed-off-by: Trond Myklebust diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c index 137b549..b68536c 100644 --- a/fs/nfs/pagelist.c +++ b/fs/nfs/pagelist.c @@ -115,7 +115,7 @@ int nfs_set_page_tag_locked(struct nfs_page *req) { if (!nfs_lock_request_dontget(req)) return 0; - if (req->wb_page != NULL) + if (test_bit(PG_MAPPED, &req->wb_flags)) radix_tree_tag_set(&NFS_I(req->wb_context->path.dentry->d_inode)->nfs_page_tree, req->wb_index, NFS_PAGE_TAG_LOCKED); return 1; } @@ -125,7 +125,7 @@ int nfs_set_page_tag_locked(struct nfs_page *req) */ void nfs_clear_page_tag_locked(struct nfs_page *req) { - if (req->wb_page != NULL) { + if (test_bit(PG_MAPPED, &req->wb_flags)) { struct inode *inode = req->wb_context->path.dentry->d_inode; struct nfs_inode *nfsi = NFS_I(inode); diff --git a/fs/nfs/read.c b/fs/nfs/read.c index e4b62c6..aedcaa7 100644 --- a/fs/nfs/read.c +++ b/fs/nfs/read.c @@ -152,7 +152,6 @@ static void nfs_readpage_release(struct nfs_page *req) (long long)NFS_FILEID(req->wb_context->path.dentry->d_inode), req->wb_bytes, (long long)req_offset(req)); - nfs_clear_request(req); nfs_release_request(req); } diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 4c14c17..10d648ea 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -390,6 +390,7 @@ static int nfs_inode_add_request(struct inode *inode, struct nfs_page *req) if (nfs_have_delegation(inode, FMODE_WRITE)) nfsi->change_attr++; } + set_bit(PG_MAPPED, &req->wb_flags); SetPagePrivate(req->wb_page); set_page_private(req->wb_page, (unsigned long)req); nfsi->npages++; @@ -415,6 +416,7 @@ static void nfs_inode_remove_request(struct nfs_page *req) spin_lock(&inode->i_lock); set_page_private(req->wb_page, 0); ClearPagePrivate(req->wb_page); + clear_bit(PG_MAPPED, &req->wb_flags); radix_tree_delete(&nfsi->nfs_page_tree, req->wb_index); nfsi->npages--; if (!nfsi->npages) { @@ -422,7 +424,6 @@ static void nfs_inode_remove_request(struct nfs_page *req) iput(inode); } else spin_unlock(&inode->i_lock); - nfs_clear_request(req); nfs_release_request(req); } diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h index f8b60e7..d55cee7 100644 --- a/include/linux/nfs_page.h +++ b/include/linux/nfs_page.h @@ -29,6 +29,7 @@ */ enum { PG_BUSY = 0, + PG_MAPPED, PG_CLEAN, PG_NEED_COMMIT, PG_NEED_RESCHED, -- cgit v0.10.2 From 47d092352c132a2d0ee4156b5dca263eaad2c17f Mon Sep 17 00:00:00 2001 From: David Foley Date: Tue, 7 Dec 2010 21:05:59 -0800 Subject: Input: wacom - add new Bamboo PT (0xdb) Adds new Bamboo Pen & Touch model - Bamboo P & T Special Edition Medium (CTH661/L; Product ID = 0xdb). Tested-by: Tobias Verbeke Signed-off-by: David Foley Acked-by: Ping Cheng Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index db747e4..4852b44 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -1440,6 +1440,8 @@ static struct wacom_features wacom_features_0xD8 = { "Wacom Bamboo Comic 2FG", WACOM_PKGLEN_BBFUN, 21648, 13530, 1023, 63, BAMBOO_PT }; static struct wacom_features wacom_features_0xDA = { "Wacom Bamboo 2FG 4x5 SE", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT }; +static struct wacom_features wacom_features_0xDB = + { "Wacom Bamboo 2FG 6x8 SE", WACOM_PKGLEN_BBFUN, 21648, 13530, 1023, 63, BAMBOO_PT }; #define USB_DEVICE_WACOM(prod) \ USB_DEVICE(USB_VENDOR_ID_WACOM, prod), \ @@ -1510,6 +1512,7 @@ const struct usb_device_id wacom_ids[] = { { USB_DEVICE_WACOM(0xD3) }, { USB_DEVICE_WACOM(0xD8) }, { USB_DEVICE_WACOM(0xDA) }, + { USB_DEVICE_WACOM(0xDB) }, { USB_DEVICE_WACOM(0xF0) }, { USB_DEVICE_WACOM(0xCC) }, { USB_DEVICE_WACOM(0x90) }, -- cgit v0.10.2 From 599bbb9de0fe9c494a223a34d790b353ad4d69f8 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 6 Dec 2010 12:42:46 +1000 Subject: drm/i915: i915 cannot provide switcher services. it has a DSM but the switcher is done via WMI. Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/i915/intel_acpi.c b/drivers/gpu/drm/i915/intel_acpi.c index 65c88f9..2cb8e0b 100644 --- a/drivers/gpu/drm/i915/intel_acpi.c +++ b/drivers/gpu/drm/i915/intel_acpi.c @@ -190,37 +190,6 @@ out: kfree(output.pointer); } -static int intel_dsm_switchto(enum vga_switcheroo_client_id id) -{ - return 0; -} - -static int intel_dsm_power_state(enum vga_switcheroo_client_id id, - enum vga_switcheroo_state state) -{ - return 0; -} - -static int intel_dsm_init(void) -{ - return 0; -} - -static int intel_dsm_get_client_id(struct pci_dev *pdev) -{ - if (intel_dsm_priv.dhandle == DEVICE_ACPI_HANDLE(&pdev->dev)) - return VGA_SWITCHEROO_IGD; - else - return VGA_SWITCHEROO_DIS; -} - -static struct vga_switcheroo_handler intel_dsm_handler = { - .switchto = intel_dsm_switchto, - .power_state = intel_dsm_power_state, - .init = intel_dsm_init, - .get_client_id = intel_dsm_get_client_id, -}; - static bool intel_dsm_pci_probe(struct pci_dev *pdev) { acpi_handle dhandle, intel_handle; @@ -276,11 +245,8 @@ void intel_register_dsm_handler(void) { if (!intel_dsm_detect()) return; - - vga_switcheroo_register_handler(&intel_dsm_handler); } void intel_unregister_dsm_handler(void) { - vga_switcheroo_unregister_handler(); } -- cgit v0.10.2 From 0bbaee3a58c379c4f7bab9635c71d7bad9c422a2 Mon Sep 17 00:00:00 2001 From: Anssi Hannula Date: Tue, 7 Dec 2010 21:19:23 +0200 Subject: ALSA: hda - Reset sample sizes and max bitrates when reading ELD When a new HDMI/DP device is plugged in, hdmi_update_short_audio_desc() is called for every SAD (Short Audio Descriptor) in the ELD data. For LPCM coding type SAD defines the supported sample sizes. For several other coding types (such as AC-3), a maximum bitrate is defined. The maximum bitrate and sample size fields are not always cleared. Therefore, if a device is unplugged and a different one is plugged in, and the coding types of some SAD positions differ between the devices, the old max_bitrate or sample_bits values will persist if the new SADs do not define those values. The leftover max_bitrate and sample_bits do not cause any issues other than wrongly showing up in eld#X.Y procfs file and kernel log. Fix that by always clearing sample_bits and max_bitrate when reading SADs. Signed-off-by: Anssi Hannula Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c index 009031f..4a66347 100644 --- a/sound/pci/hda/hda_eld.c +++ b/sound/pci/hda/hda_eld.c @@ -189,6 +189,9 @@ static void hdmi_update_short_audio_desc(struct cea_sad *a, a->channels = GRAB_BITS(buf, 0, 0, 3); a->channels++; + a->sample_bits = 0; + a->max_bitrate = 0; + a->format = GRAB_BITS(buf, 0, 3, 4); switch (a->format) { case AUDIO_CODING_TYPE_REF_STREAM_HEADER: @@ -198,7 +201,6 @@ static void hdmi_update_short_audio_desc(struct cea_sad *a, case AUDIO_CODING_TYPE_LPCM: val = GRAB_BITS(buf, 2, 0, 3); - a->sample_bits = 0; for (i = 0; i < 3; i++) if (val & (1 << i)) a->sample_bits |= cea_sample_sizes[i + 1]; -- cgit v0.10.2 From 6229cdb23648d0c2875b3fb102cdaf4bf08fcfa4 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Wed, 8 Dec 2010 16:27:22 +0100 Subject: hwmon: (it87) Fix manual fan speed control on IT8721F The manual fan speed control logic of the IT8721F is much different from what older devices had. Update the code to properly support that. Signed-off-by: Jean Delvare Acked-by: Guenter Roeck diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c index 14a5d98..a428a92 100644 --- a/drivers/hwmon/it87.c +++ b/drivers/hwmon/it87.c @@ -187,6 +187,7 @@ static const u8 IT87_REG_FANX_MIN[] = { 0x1b, 0x1c, 0x1d, 0x85, 0x87 }; #define IT87_REG_FAN_MAIN_CTRL 0x13 #define IT87_REG_FAN_CTL 0x14 #define IT87_REG_PWM(nr) (0x15 + (nr)) +#define IT87_REG_PWM_DUTY(nr) (0x63 + (nr) * 8) #define IT87_REG_VIN(nr) (0x20 + (nr)) #define IT87_REG_TEMP(nr) (0x29 + (nr)) @@ -251,12 +252,16 @@ struct it87_data { u8 fan_main_ctrl; /* Register value */ u8 fan_ctl; /* Register value */ - /* The following 3 arrays correspond to the same registers. The - * meaning of bits 6-0 depends on the value of bit 7, and we want - * to preserve settings on mode changes, so we have to track all - * values separately. */ + /* The following 3 arrays correspond to the same registers up to + * the IT8720F. The meaning of bits 6-0 depends on the value of bit + * 7, and we want to preserve settings on mode changes, so we have + * to track all values separately. + * Starting with the IT8721F, the manual PWM duty cycles are stored + * in separate registers (8-bit values), so the separate tracking + * is no longer needed, but it is still done to keep the driver + * simple. */ u8 pwm_ctrl[3]; /* Register value */ - u8 pwm_duty[3]; /* Manual PWM value set by user (bit 6-0) */ + u8 pwm_duty[3]; /* Manual PWM value set by user */ u8 pwm_temp_map[3]; /* PWM to temp. chan. mapping (bits 1-0) */ /* Automatic fan speed control registers */ @@ -832,7 +837,9 @@ static ssize_t set_pwm_enable(struct device *dev, data->fan_main_ctrl); } else { if (val == 1) /* Manual mode */ - data->pwm_ctrl[nr] = data->pwm_duty[nr]; + data->pwm_ctrl[nr] = data->type == it8721 ? + data->pwm_temp_map[nr] : + data->pwm_duty[nr]; else /* Automatic mode */ data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr]; it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); @@ -858,12 +865,25 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, return -EINVAL; mutex_lock(&data->update_lock); - data->pwm_duty[nr] = pwm_to_reg(data, val); - /* If we are in manual mode, write the duty cycle immediately; - * otherwise, just store it for later use. */ - if (!(data->pwm_ctrl[nr] & 0x80)) { - data->pwm_ctrl[nr] = data->pwm_duty[nr]; - it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); + if (data->type == it8721) { + /* If we are in automatic mode, the PWM duty cycle register + * is read-only so we can't write the value */ + if (data->pwm_ctrl[nr] & 0x80) { + mutex_unlock(&data->update_lock); + return -EBUSY; + } + data->pwm_duty[nr] = pwm_to_reg(data, val); + it87_write_value(data, IT87_REG_PWM_DUTY(nr), + data->pwm_duty[nr]); + } else { + data->pwm_duty[nr] = pwm_to_reg(data, val); + /* If we are in manual mode, write the duty cycle immediately; + * otherwise, just store it for later use. */ + if (!(data->pwm_ctrl[nr] & 0x80)) { + data->pwm_ctrl[nr] = data->pwm_duty[nr]; + it87_write_value(data, IT87_REG_PWM(nr), + data->pwm_ctrl[nr]); + } } mutex_unlock(&data->update_lock); return count; @@ -1958,7 +1978,10 @@ static void __devinit it87_init_device(struct platform_device *pdev) * channels to use when later setting to automatic mode later. * Use a 1:1 mapping by default (we are clueless.) * In both cases, the value can (and should) be changed by the user - * prior to switching to a different mode. */ + * prior to switching to a different mode. + * Note that this is no longer needed for the IT8721F and later, as + * these have separate registers for the temperature mapping and the + * manual duty cycle. */ for (i = 0; i < 3; i++) { data->pwm_temp_map[i] = i; data->pwm_duty[i] = 0x7f; /* Full speed */ @@ -2034,10 +2057,16 @@ static void __devinit it87_init_device(struct platform_device *pdev) static void it87_update_pwm_ctrl(struct it87_data *data, int nr) { data->pwm_ctrl[nr] = it87_read_value(data, IT87_REG_PWM(nr)); - if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */ + if (data->type == it8721) { data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03; - else /* Manual mode */ - data->pwm_duty[nr] = data->pwm_ctrl[nr] & 0x7f; + data->pwm_duty[nr] = it87_read_value(data, + IT87_REG_PWM_DUTY(nr)); + } else { + if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */ + data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03; + else /* Manual mode */ + data->pwm_duty[nr] = data->pwm_ctrl[nr] & 0x7f; + } if (has_old_autopwm(data)) { int i; -- cgit v0.10.2 From 52bc9802ce849d0d287cc5fe76d06b0daa3986ca Mon Sep 17 00:00:00 2001 From: Gabriele Gorla Date: Wed, 8 Dec 2010 16:27:22 +0100 Subject: hwmon: (adm1026) Fix setting fan_div Prevent setting fan_div from stomping on other fans that share the same I2C register. Signed-off-by: Gabriele Gorla Cc: stable@kernel.org Signed-off-by: Jean Delvare diff --git a/drivers/hwmon/adm1026.c b/drivers/hwmon/adm1026.c index 4bf969c..6f257ce 100644 --- a/drivers/hwmon/adm1026.c +++ b/drivers/hwmon/adm1026.c @@ -916,7 +916,7 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, int nr = sensor_attr->index; struct i2c_client *client = to_i2c_client(dev); struct adm1026_data *data = i2c_get_clientdata(client); - int val, orig_div, new_div, shift; + int val, orig_div, new_div; val = simple_strtol(buf, NULL, 10); new_div = DIV_TO_REG(val); @@ -928,15 +928,17 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, data->fan_div[nr] = DIV_FROM_REG(new_div); if (nr < 4) { /* 0 <= nr < 4 */ - shift = 2 * nr; adm1026_write_value(client, ADM1026_REG_FAN_DIV_0_3, - ((DIV_TO_REG(orig_div) & (~(0x03 << shift))) | - (new_div << shift))); + (DIV_TO_REG(data->fan_div[0]) << 0) | + (DIV_TO_REG(data->fan_div[1]) << 2) | + (DIV_TO_REG(data->fan_div[2]) << 4) | + (DIV_TO_REG(data->fan_div[3]) << 6)); } else { /* 3 < nr < 8 */ - shift = 2 * (nr - 4); adm1026_write_value(client, ADM1026_REG_FAN_DIV_4_7, - ((DIV_TO_REG(orig_div) & (~(0x03 << (2 * shift)))) | - (new_div << shift))); + (DIV_TO_REG(data->fan_div[4]) << 0) | + (DIV_TO_REG(data->fan_div[5]) << 2) | + (DIV_TO_REG(data->fan_div[6]) << 4) | + (DIV_TO_REG(data->fan_div[7]) << 6)); } if (data->fan_div[nr] != orig_div) { -- cgit v0.10.2 From 8b0f1840a46449e1946fc88860ef3ec8d6b1c2c7 Mon Sep 17 00:00:00 2001 From: Gabriele Gorla Date: Wed, 8 Dec 2010 16:27:22 +0100 Subject: hwmon: (adm1026) Allow 1 as a valid divider value Allow 1 as a valid div value as specified in the ADM1026 datasheet. Signed-off-by: Gabriele Gorla Cc: stable@kernel.org Signed-off-by: Jean Delvare diff --git a/drivers/hwmon/adm1026.c b/drivers/hwmon/adm1026.c index 6f257ce..be0fdd5 100644 --- a/drivers/hwmon/adm1026.c +++ b/drivers/hwmon/adm1026.c @@ -920,9 +920,7 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, val = simple_strtol(buf, NULL, 10); new_div = DIV_TO_REG(val); - if (new_div == 0) { - return -EINVAL; - } + mutex_lock(&data->update_lock); orig_div = data->fan_div[nr]; data->fan_div[nr] = DIV_FROM_REG(new_div); -- cgit v0.10.2 From e83293233faf6e49870e7bfdcddf5374cb463d54 Mon Sep 17 00:00:00 2001 From: Kim Lilliestierna XX Date: Tue, 30 Nov 2010 09:11:22 +0000 Subject: CAIF: Fix U5500 compile error for shared memory driver Rearrange pr_fmt so it compiles. Signed-off-by: Sjur Braendeland Signed-off-by: David S. Miller diff --git a/drivers/net/caif/caif_shm_u5500.c b/drivers/net/caif/caif_shm_u5500.c index 1cd90da..32b1c6f 100644 --- a/drivers/net/caif/caif_shm_u5500.c +++ b/drivers/net/caif/caif_shm_u5500.c @@ -5,7 +5,7 @@ * License terms: GNU General Public License (GPL) version 2 */ -#define pr_fmt(fmt) KBUILD_MODNAME ":" __func__ "():" fmt +#define pr_fmt(fmt) KBUILD_MODNAME ":" fmt #include #include diff --git a/drivers/net/caif/caif_shmcore.c b/drivers/net/caif/caif_shmcore.c index 19f9c06..8051116 100644 --- a/drivers/net/caif/caif_shmcore.c +++ b/drivers/net/caif/caif_shmcore.c @@ -6,7 +6,7 @@ * License terms: GNU General Public License (GPL) version 2 */ -#define pr_fmt(fmt) KBUILD_MODNAME ":" __func__ "():" fmt +#define pr_fmt(fmt) KBUILD_MODNAME ":" fmt #include #include -- cgit v0.10.2 From c1ac3ffcd0bc7e9617f62be8c7043d53ab84deac Mon Sep 17 00:00:00 2001 From: Neil Brown Date: Thu, 2 Dec 2010 11:14:30 +1100 Subject: nfsd: Fix possible BUG_ON firing in set_change_info If vfs_getattr in fill_post_wcc returns an error, we don't set fh_post_change. For NFSv4, this can result in set_change_info triggering a BUG_ON. i.e. fh_post_saved being zero isn't really a bug. So: - instead of BUGging when fh_post_saved is zero, just clear ->atomic. - if vfs_getattr fails in fill_post_wcc, take a copy of i_ctime anyway. This will be used i seg_change_info, but not overly trusted. - While we are there, remove the pointless 'if' statements in set_change_info. There is no harm setting all the values. Signed-off-by: NeilBrown Cc: stable@kernel.org Signed-off-by: J. Bruce Fields diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c index 2a533a0..7e84a85 100644 --- a/fs/nfsd/nfs3xdr.c +++ b/fs/nfsd/nfs3xdr.c @@ -260,9 +260,11 @@ void fill_post_wcc(struct svc_fh *fhp) err = vfs_getattr(fhp->fh_export->ex_path.mnt, fhp->fh_dentry, &fhp->fh_post_attr); fhp->fh_post_change = fhp->fh_dentry->d_inode->i_version; - if (err) + if (err) { fhp->fh_post_saved = 0; - else + /* Grab the ctime anyway - set_change_info might use it */ + fhp->fh_post_attr.ctime = fhp->fh_dentry->d_inode->i_ctime; + } else fhp->fh_post_saved = 1; } diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h index 4d476ff..60fce3d 100644 --- a/fs/nfsd/xdr4.h +++ b/fs/nfsd/xdr4.h @@ -484,18 +484,17 @@ static inline bool nfsd4_not_cached(struct nfsd4_compoundres *resp) static inline void set_change_info(struct nfsd4_change_info *cinfo, struct svc_fh *fhp) { - BUG_ON(!fhp->fh_pre_saved || !fhp->fh_post_saved); - cinfo->atomic = 1; + BUG_ON(!fhp->fh_pre_saved); + cinfo->atomic = fhp->fh_post_saved; cinfo->change_supported = IS_I_VERSION(fhp->fh_dentry->d_inode); - if (cinfo->change_supported) { - cinfo->before_change = fhp->fh_pre_change; - cinfo->after_change = fhp->fh_post_change; - } else { - cinfo->before_ctime_sec = fhp->fh_pre_ctime.tv_sec; - cinfo->before_ctime_nsec = fhp->fh_pre_ctime.tv_nsec; - cinfo->after_ctime_sec = fhp->fh_post_attr.ctime.tv_sec; - cinfo->after_ctime_nsec = fhp->fh_post_attr.ctime.tv_nsec; - } + + cinfo->before_change = fhp->fh_pre_change; + cinfo->after_change = fhp->fh_post_change; + cinfo->before_ctime_sec = fhp->fh_pre_ctime.tv_sec; + cinfo->before_ctime_nsec = fhp->fh_pre_ctime.tv_nsec; + cinfo->after_ctime_sec = fhp->fh_post_attr.ctime.tv_sec; + cinfo->after_ctime_nsec = fhp->fh_post_attr.ctime.tv_nsec; + } int nfs4svc_encode_voidres(struct svc_rqst *, __be32 *, void *); -- cgit v0.10.2 From ce9aeb583a1071304d0e4ab8db600bfc8a6a1b44 Mon Sep 17 00:00:00 2001 From: Dimitris Michailidis Date: Fri, 3 Dec 2010 10:39:04 +0000 Subject: cxgb4: fix MAC address hash filter Fix the calculation of the inexact hash-based MAC address filter. It's 64 bits but current code is missing a ULL. Results in filtering out some legitimate packets. Signed-off-by: Dimitris Michailidis Signed-off-by: David S. Miller diff --git a/drivers/net/cxgb4/t4_hw.c b/drivers/net/cxgb4/t4_hw.c index bb813d9..e97521c 100644 --- a/drivers/net/cxgb4/t4_hw.c +++ b/drivers/net/cxgb4/t4_hw.c @@ -2408,7 +2408,7 @@ int t4_alloc_mac_filt(struct adapter *adap, unsigned int mbox, if (index < NEXACT_MAC) ret++; else if (hash) - *hash |= (1 << hash_mac_addr(addr[i])); + *hash |= (1ULL << hash_mac_addr(addr[i])); } return ret; } -- cgit v0.10.2 From b1afde60f2b9ee8444fba4e012dc99a3b28d224d Mon Sep 17 00:00:00 2001 From: Nandita Dukkipati Date: Fri, 3 Dec 2010 13:33:44 +0000 Subject: tcp: Bug fix in initialization of receive window. The bug has to do with boundary checks on the initial receive window. If the initial receive window falls between init_cwnd and the receive window specified by the user, the initial window is incorrectly brought down to init_cwnd. The correct behavior is to allow it to remain unchanged. Signed-off-by: Nandita Dukkipati Signed-off-by: David S. Miller diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 05b1ecf..3c59ab4 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -231,11 +231,10 @@ void tcp_select_initial_window(int __space, __u32 mss, /* when initializing use the value from init_rcv_wnd * rather than the default from above */ - if (init_rcv_wnd && - (*rcv_wnd > init_rcv_wnd * mss)) - *rcv_wnd = init_rcv_wnd * mss; - else if (*rcv_wnd > init_cwnd * mss) - *rcv_wnd = init_cwnd * mss; + if (init_rcv_wnd) + *rcv_wnd = min(*rcv_wnd, init_rcv_wnd * mss); + else + *rcv_wnd = min(*rcv_wnd, init_cwnd * mss); } /* Set the clamp no higher than max representable value */ -- cgit v0.10.2 From 75c1c82566f23dd539fb7ccbf57a1caa7ba82628 Mon Sep 17 00:00:00 2001 From: Changli Gao Date: Sat, 4 Dec 2010 14:09:08 +0000 Subject: ifb: goto resched directly if error happens and dp->tq isn't empty If we break the loop when there are still skbs in tq and no skb in rq, the skbs will be left in txq until new skbs are enqueued into rq. In rare cases, no new skb is queued, then these skbs will stay in rq forever. After this patch, if tq isn't empty when we break the loop, we goto resched directly. Signed-off-by: Changli Gao Signed-off-by: Jamal Hadi Salim Signed-off-by: David S. Miller diff --git a/drivers/net/ifb.c b/drivers/net/ifb.c index ab9f675..fe337bd 100644 --- a/drivers/net/ifb.c +++ b/drivers/net/ifb.c @@ -104,6 +104,8 @@ static void ri_tasklet(unsigned long dev) rcu_read_unlock(); dev_kfree_skb(skb); stats->tx_dropped++; + if (skb_queue_len(&dp->tq) != 0) + goto resched; break; } rcu_read_unlock(); -- cgit v0.10.2 From 35d9b0c906ad92d32a0b8db5daa6fabfcc2f068d Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sun, 5 Dec 2010 02:03:26 +0000 Subject: llc: fix a device refcount imbalance MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Le dimanche 05 décembre 2010 à 12:23 +0100, Eric Dumazet a écrit : > Le dimanche 05 décembre 2010 à 09:19 +0100, Eric Dumazet a écrit : > > > Hmm.. > > > > If somebody can explain why RTNL is held in arp_ioctl() (and therefore > > in arp_req_delete()), we might first remove RTNL use in arp_ioctl() so > > that your patch can be applied. > > > > Right now it is not good, because RTNL wont be necessarly held when you > > are going to call arp_invalidate() ? > > While doing this analysis, I found a refcount bug in llc, I'll send a > patch for net-2.6 Oh well, of course I must first fix the bug in net-2.6, and wait David pull the fix in net-next-2.6 before sending this rcu conversion. Note: this patch should be sent to stable teams (2.6.34 and up) [PATCH net-2.6] llc: fix a device refcount imbalance commit abf9d537fea225 (llc: add support for SO_BINDTODEVICE) added one refcount imbalance in llc_ui_bind(), because dev_getbyhwaddr() doesnt take a reference on device, while dev_get_by_index() does. Fix this using RCU locking. And since an RCU conversion will be done for 2.6.38 for dev_getbyhwaddr(), put the rcu_read_lock/unlock exactly at their final place. Signed-off-by: Eric Dumazet Cc: stable@kernel.org Cc: Octavian Purdila Signed-off-by: David S. Miller diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index 5826129..e35dbe5 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -317,8 +317,9 @@ static int llc_ui_bind(struct socket *sock, struct sockaddr *uaddr, int addrlen) goto out; rc = -ENODEV; rtnl_lock(); + rcu_read_lock(); if (sk->sk_bound_dev_if) { - llc->dev = dev_get_by_index(&init_net, sk->sk_bound_dev_if); + llc->dev = dev_get_by_index_rcu(&init_net, sk->sk_bound_dev_if); if (llc->dev) { if (!addr->sllc_arphrd) addr->sllc_arphrd = llc->dev->type; @@ -329,13 +330,13 @@ static int llc_ui_bind(struct socket *sock, struct sockaddr *uaddr, int addrlen) !llc_mac_match(addr->sllc_mac, llc->dev->dev_addr)) { rc = -EINVAL; - dev_put(llc->dev); llc->dev = NULL; } } } else llc->dev = dev_getbyhwaddr(&init_net, addr->sllc_arphrd, addr->sllc_mac); + rcu_read_unlock(); rtnl_unlock(); if (!llc->dev) goto out; -- cgit v0.10.2 From 545c988b2018a593f24d291b66776a0d08525acd Mon Sep 17 00:00:00 2001 From: Suresh Jayaraman Date: Mon, 6 Dec 2010 13:45:50 +0530 Subject: cifs: remove bogus remapping of error in cifs_filldir() As the FIXME points out correctly, now filldir() itself returns -EOVERFLOW if it not possible to represent the inode number supplied by the filesystem in the field provided by userspace. Signed-off-by: Suresh Jayaraman Reviewed-by: Jeff Layton Signed-off-by: Steve French diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c index 32d300e..a73eb9f 100644 --- a/fs/cifs/readdir.c +++ b/fs/cifs/readdir.c @@ -759,18 +759,6 @@ static int cifs_filldir(char *pfindEntry, struct file *file, filldir_t filldir, rc = filldir(direntry, qstring.name, qstring.len, file->f_pos, ino, fattr.cf_dtype); - /* - * we can not return filldir errors to the caller since they are - * "normal" when the stat blocksize is too small - we return remapped - * error instead - * - * FIXME: This looks bogus. filldir returns -EOVERFLOW in the above - * case already. Why should we be clobbering other errors from it? - */ - if (rc) { - cFYI(1, "filldir rc = %d", rc); - rc = -EOVERFLOW; - } dput(tmp_dentry); return rc; } -- cgit v0.10.2 From bb31b3122c0dd07d2d958da17a50ad771ce79e2b Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Thu, 2 Dec 2010 17:48:35 +0100 Subject: EDAC: Fix workqueue-related crashes 00740c58541b6087d78418cebca1fcb86dc6077d changed edac_core to un-/register a workqueue item only if a lowlevel driver supplies a polling routine. Normally, when we remove a polling low-level driver, we go and cancel all the queued work. However, the workqueue unreg happens based on the ->op_state setting, and edac_mc_del_mc() sets this to OP_OFFLINE _before_ we cancel the work item, leading to NULL ptr oops on the workqueue list. Fix it by putting the unreg stuff in proper order. Cc: #36.x Reported-and-tested-by: Tobias Karnat LKML-Reference: <1291201307.3029.21.camel@Tobias-Karnat> Signed-off-by: Borislav Petkov diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c index ba6586a..795ea69c 100644 --- a/drivers/edac/edac_mc.c +++ b/drivers/edac/edac_mc.c @@ -586,14 +586,16 @@ struct mem_ctl_info *edac_mc_del_mc(struct device *dev) return NULL; } - /* marking MCI offline */ - mci->op_state = OP_OFFLINE; - del_mc_from_global_list(mci); mutex_unlock(&mem_ctls_mutex); - /* flush workq processes and remove sysfs */ + /* flush workq processes */ edac_mc_workq_teardown(mci); + + /* marking MCI offline */ + mci->op_state = OP_OFFLINE; + + /* remove from sysfs */ edac_remove_sysfs_mci_device(mci); edac_printk(KERN_INFO, EDAC_MC, -- cgit v0.10.2 From 76f04f2591e60fa76e70a2736965bc810bf1c764 Mon Sep 17 00:00:00 2001 From: Andrei Konovalov Date: Tue, 7 Dec 2010 07:48:00 -0500 Subject: EDAC: Correct MiB_TO_PAGES() macro This corrects the misprint introduced when moving '#if PAGE_SHIFT' from i7core_edac.c to edac_core.h (commit e9144601d364d5b81f3e63949337f8507eb58dca) Cc: Mauro Carvalho Chehab Signed-off-by: Andrei Konovalov Signed-off-by: Borislav Petkov diff --git a/drivers/edac/edac_core.h b/drivers/edac/edac_core.h index d7ca43a..251440c 100644 --- a/drivers/edac/edac_core.h +++ b/drivers/edac/edac_core.h @@ -41,10 +41,10 @@ #define MC_PROC_NAME_MAX_LEN 7 #if PAGE_SHIFT < 20 -#define PAGES_TO_MiB( pages ) ( ( pages ) >> ( 20 - PAGE_SHIFT ) ) -#define MiB_TO_PAGES(mb) ((mb) >> (20 - PAGE_SHIFT)) +#define PAGES_TO_MiB(pages) ((pages) >> (20 - PAGE_SHIFT)) +#define MiB_TO_PAGES(mb) ((mb) << (20 - PAGE_SHIFT)) #else /* PAGE_SHIFT > 20 */ -#define PAGES_TO_MiB( pages ) ( ( pages ) << ( PAGE_SHIFT - 20 ) ) +#define PAGES_TO_MiB(pages) ((pages) << (PAGE_SHIFT - 20)) #define MiB_TO_PAGES(mb) ((mb) >> (PAGE_SHIFT - 20)) #endif -- cgit v0.10.2 From e726f3c368e7c1919a7166ec09c5705759f1a69d Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Mon, 6 Dec 2010 16:20:25 +0100 Subject: amd64_edac: Fix interleaving check When matching error address to the range contained by one memory node, we're in valid range when node interleaving 1. is disabled, or 2. enabled and when the address bits we interleave on match the interleave selector on this node (see the "Node Interleaving" section in the BKDG for an enlightening example). Thus, when we early-exit, we need to reverse the compound logic statement properly. Cc: Signed-off-by: Borislav Petkov diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c index 8521401..eca9ba1 100644 --- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -1572,7 +1572,7 @@ static int f10_match_to_this_node(struct amd64_pvt *pvt, int dram_range, debugf1(" HoleOffset=0x%x HoleValid=0x%x IntlvSel=0x%x\n", hole_off, hole_valid, intlv_sel); - if (intlv_en || + if (intlv_en && (intlv_sel != ((sys_addr >> 12) & intlv_en))) return -EINVAL; -- cgit v0.10.2 From 0c62fc6dd02c8d793c75ae76a9b6881fc36388ad Mon Sep 17 00:00:00 2001 From: Nelson Elhage Date: Wed, 8 Dec 2010 10:13:55 -0800 Subject: econet: Do the correct cleanup after an unprivileged SIOCSIFADDR. We need to drop the mutex and do a dev_put, so set an error code and break like the other paths, instead of returning directly. Signed-off-by: Nelson Elhage Signed-off-by: David S. Miller diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c index 13992e1..f180371 100644 --- a/net/econet/af_econet.c +++ b/net/econet/af_econet.c @@ -661,8 +661,10 @@ static int ec_dev_ioctl(struct socket *sock, unsigned int cmd, void __user *arg) err = 0; switch (cmd) { case SIOCSIFADDR: - if (!capable(CAP_NET_ADMIN)) - return -EPERM; + if (!capable(CAP_NET_ADMIN)) { + err = -EPERM; + break; + } edev = dev->ec_ptr; if (edev == NULL) { -- cgit v0.10.2 From e8d34a884e4ff118920bb57664def8a73b1b784f Mon Sep 17 00:00:00 2001 From: Michal Marek Date: Mon, 6 Dec 2010 02:39:12 +0000 Subject: l2tp: Fix modalias of l2tp_ip Using the SOCK_DGRAM enum results in "net-pf-2-proto-SOCK_DGRAM-type-115", so use the numeric value like it is done in net/dccp. Signed-off-by: Michal Marek Signed-off-by: David S. Miller diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c index 0bf6a59..522e219 100644 --- a/net/l2tp/l2tp_ip.c +++ b/net/l2tp/l2tp_ip.c @@ -674,4 +674,8 @@ MODULE_LICENSE("GPL"); MODULE_AUTHOR("James Chapman "); MODULE_DESCRIPTION("L2TP over IP"); MODULE_VERSION("1.0"); -MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_INET, SOCK_DGRAM, IPPROTO_L2TP); + +/* Use the value of SOCK_DGRAM (2) directory, because __stringify does't like + * enums + */ +MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_INET, 2, IPPROTO_L2TP); -- cgit v0.10.2 From 408cc293c29ada769ae772420a39961320da1854 Mon Sep 17 00:00:00 2001 From: Joe Jin Date: Mon, 6 Dec 2010 03:00:59 +0000 Subject: driver/net/benet: fix be_cmd_multicast_set() memcpy bug Regarding benet be_cmd_multicast_set() function, now using netdev_for_each_mc_addr() helper for mac address copy, but when copying to req->mac[] did not increase of the index. Cc: Sathya Perla Cc: Subbu Seetharaman Cc: Sarveshwar Bandi Cc: Ajit Khaparde Signed-off-by: Joe Jin Signed-off-by: David S. Miller diff --git a/drivers/net/benet/be_cmds.c b/drivers/net/benet/be_cmds.c index 36eca1c..e4465d2 100644 --- a/drivers/net/benet/be_cmds.c +++ b/drivers/net/benet/be_cmds.c @@ -1235,7 +1235,7 @@ int be_cmd_multicast_set(struct be_adapter *adapter, u32 if_id, i = 0; netdev_for_each_mc_addr(ha, netdev) - memcpy(req->mac[i].byte, ha->addr, ETH_ALEN); + memcpy(req->mac[i++].byte, ha->addr, ETH_ALEN); } else { req->promiscuous = 1; } -- cgit v0.10.2 From 171995e5d82dcc92bea37a7d2a2ecc21068a0f19 Mon Sep 17 00:00:00 2001 From: Apollon Oikonomopoulos Date: Tue, 7 Dec 2010 09:43:30 +0000 Subject: x25: decrement netdev reference counts on unload x25 does not decrement the network device reference counts on module unload. Thus unregistering any pre-existing interface after unloading the x25 module hangs and results in unregister_netdevice: waiting for tap0 to become free. Usage count = 1 This patch decrements the reference counts of all interfaces in x25_link_free, the way it is already done in x25_link_device_down for NETDEV_DOWN events. Signed-off-by: Apollon Oikonomopoulos Signed-off-by: David S. Miller diff --git a/net/x25/x25_link.c b/net/x25/x25_link.c index 73e7b95..b25c646 100644 --- a/net/x25/x25_link.c +++ b/net/x25/x25_link.c @@ -394,6 +394,7 @@ void __exit x25_link_free(void) list_for_each_safe(entry, tmp, &x25_neigh_list) { nb = list_entry(entry, struct x25_neigh, node); __x25_remove_neigh(nb); + dev_put(nb->dev); } write_unlock_bh(&x25_neigh_list_lock); } -- cgit v0.10.2 From 67631510a318d5a930055fe927607f483716e100 Mon Sep 17 00:00:00 2001 From: Tom Herbert Date: Wed, 8 Dec 2010 12:16:33 -0800 Subject: tcp: Replace time wait bucket msg by counter Rather than printing the message to the log, use a mib counter to keep track of the count of occurences of time wait bucket overflow. Reduces spam in logs. Signed-off-by: Tom Herbert Signed-off-by: David S. Miller diff --git a/include/linux/snmp.h b/include/linux/snmp.h index ebb0c80..12b2b18 100644 --- a/include/linux/snmp.h +++ b/include/linux/snmp.h @@ -230,6 +230,7 @@ enum LINUX_MIB_TCPMINTTLDROP, /* RFC 5082 */ LINUX_MIB_TCPDEFERACCEPTDROP, LINUX_MIB_IPRPFILTER, /* IP Reverse Path Filter (rp_filter) */ + LINUX_MIB_TCPTIMEWAITOVERFLOW, /* TCPTimeWaitOverflow */ __LINUX_MIB_MAX }; diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c index 1b48eb1..b14ec7d 100644 --- a/net/ipv4/proc.c +++ b/net/ipv4/proc.c @@ -253,6 +253,7 @@ static const struct snmp_mib snmp4_net_list[] = { SNMP_MIB_ITEM("TCPMinTTLDrop", LINUX_MIB_TCPMINTTLDROP), SNMP_MIB_ITEM("TCPDeferAcceptDrop", LINUX_MIB_TCPDEFERACCEPTDROP), SNMP_MIB_ITEM("IPReversePathFilter", LINUX_MIB_IPRPFILTER), + SNMP_MIB_ITEM("TCPTimeWaitOverflow", LINUX_MIB_TCPTIMEWAITOVERFLOW), SNMP_MIB_SENTINEL }; diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c index 43cf901..a66735f 100644 --- a/net/ipv4/tcp_minisocks.c +++ b/net/ipv4/tcp_minisocks.c @@ -347,7 +347,7 @@ void tcp_time_wait(struct sock *sk, int state, int timeo) * socket up. We've got bigger problems than * non-graceful socket closings. */ - LIMIT_NETDEBUG(KERN_INFO "TCP: time wait bucket table overflow\n"); + NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPTIMEWAITOVERFLOW); } tcp_update_metrics(sk); -- cgit v0.10.2 From c7757fdb41dfcf6add9f8a4576eb85aa5e77a4eb Mon Sep 17 00:00:00 2001 From: Breno Leitao Date: Wed, 8 Dec 2010 12:19:14 -0800 Subject: ehea: Fixing LRO configuration In order to set LRO on ehea, the user must set a module parameter, which is not the standard way to do so. This patch adds a way to set LRO using the ethtool tool. Signed-off-by: Breno Leitao Signed-off-by: David S. Miller diff --git a/drivers/net/ehea/ehea_ethtool.c b/drivers/net/ehea/ehea_ethtool.c index 75b099c..1f37ee6 100644 --- a/drivers/net/ehea/ehea_ethtool.c +++ b/drivers/net/ehea/ehea_ethtool.c @@ -261,6 +261,13 @@ static void ehea_get_ethtool_stats(struct net_device *dev, } +static int ehea_set_flags(struct net_device *dev, u32 data) +{ + return ethtool_op_set_flags(dev, data, ETH_FLAG_LRO + | ETH_FLAG_TXVLAN + | ETH_FLAG_RXVLAN); +} + const struct ethtool_ops ehea_ethtool_ops = { .get_settings = ehea_get_settings, .get_drvinfo = ehea_get_drvinfo, @@ -273,6 +280,8 @@ const struct ethtool_ops ehea_ethtool_ops = { .get_ethtool_stats = ehea_get_ethtool_stats, .get_rx_csum = ehea_get_rx_csum, .set_settings = ehea_set_settings, + .get_flags = ethtool_op_get_flags, + .set_flags = ehea_set_flags, .nway_reset = ehea_nway_reset, /* Restart autonegotiation */ }; diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c index 3d0af08..b95f087 100644 --- a/drivers/net/ehea/ehea_main.c +++ b/drivers/net/ehea/ehea_main.c @@ -683,7 +683,7 @@ static void ehea_proc_skb(struct ehea_port_res *pr, struct ehea_cqe *cqe, int vlan_extracted = ((cqe->status & EHEA_CQE_VLAN_TAG_XTRACT) && pr->port->vgrp); - if (use_lro) { + if (skb->dev->features & NETIF_F_LRO) { if (vlan_extracted) lro_vlan_hwaccel_receive_skb(&pr->lro_mgr, skb, pr->port->vgrp, @@ -787,7 +787,7 @@ static int ehea_proc_rwqes(struct net_device *dev, } cqe = ehea_poll_rq1(qp, &wqe_index); } - if (use_lro) + if (dev->features & NETIF_F_LRO) lro_flush_all(&pr->lro_mgr); pr->rx_packets += processed; @@ -3278,6 +3278,9 @@ struct ehea_port *ehea_setup_single_port(struct ehea_adapter *adapter, | NETIF_F_LLTX; dev->watchdog_timeo = EHEA_WATCH_DOG_TIMEOUT; + if (use_lro) + dev->features |= NETIF_F_LRO; + INIT_WORK(&port->reset_task, ehea_reset_port); ret = register_netdev(dev); -- cgit v0.10.2 From 229bd792be0bad245b78ed8f119952733a4752e5 Mon Sep 17 00:00:00 2001 From: David Kilroy Date: Tue, 7 Dec 2010 18:50:42 +0000 Subject: orinoco: initialise priv->hw before assigning the interrupt The interrupt handler takes a lock - but since commit bcad6e80f3f this lock goes through an indirection specified in the hermes_t structure. We must therefore initialise the structure before setting up the interrupt handler. Fix orinoco_cs and spectrum_cs Bisected by: Matt Domsch Signed-off by: David Kilroy Cc: stable@kernel.org Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/orinoco/orinoco_cs.c b/drivers/net/wireless/orinoco/orinoco_cs.c index 71b3d68..32954c4 100644 --- a/drivers/net/wireless/orinoco/orinoco_cs.c +++ b/drivers/net/wireless/orinoco/orinoco_cs.c @@ -151,20 +151,20 @@ orinoco_cs_config(struct pcmcia_device *link) goto failed; } - ret = pcmcia_request_irq(link, orinoco_interrupt); - if (ret) - goto failed; - - /* We initialize the hermes structure before completing PCMCIA - * configuration just in case the interrupt handler gets - * called. */ mem = ioport_map(link->resource[0]->start, resource_size(link->resource[0])); if (!mem) goto failed; + /* We initialize the hermes structure before completing PCMCIA + * configuration just in case the interrupt handler gets + * called. */ hermes_struct_init(hw, mem, HERMES_16BIT_REGSPACING); + ret = pcmcia_request_irq(link, orinoco_interrupt); + if (ret) + goto failed; + ret = pcmcia_enable_device(link); if (ret) goto failed; diff --git a/drivers/net/wireless/orinoco/spectrum_cs.c b/drivers/net/wireless/orinoco/spectrum_cs.c index fb859a5..db34c28 100644 --- a/drivers/net/wireless/orinoco/spectrum_cs.c +++ b/drivers/net/wireless/orinoco/spectrum_cs.c @@ -214,21 +214,21 @@ spectrum_cs_config(struct pcmcia_device *link) goto failed; } - ret = pcmcia_request_irq(link, orinoco_interrupt); - if (ret) - goto failed; - - /* We initialize the hermes structure before completing PCMCIA - * configuration just in case the interrupt handler gets - * called. */ mem = ioport_map(link->resource[0]->start, resource_size(link->resource[0])); if (!mem) goto failed; + /* We initialize the hermes structure before completing PCMCIA + * configuration just in case the interrupt handler gets + * called. */ hermes_struct_init(hw, mem, HERMES_16BIT_REGSPACING); hw->eeprom_pda = true; + ret = pcmcia_request_irq(link, orinoco_interrupt); + if (ret) + goto failed; + ret = pcmcia_enable_device(link); if (ret) goto failed; -- cgit v0.10.2 From d82b577b8cf89a17cab932db272769dfc69a98df Mon Sep 17 00:00:00 2001 From: Javier Cardona Date: Tue, 7 Dec 2010 13:35:55 -0800 Subject: ath5k: Fix beaconing in mesh mode This patch fixes the oops below when attempting to bring up a mesh interface on ath5k hardware. [ 128.933099] kernel BUG at drivers/net/wireless/ath/ath5k/base.c:197! [ 128.933099] invalid opcode: 0000 [#1] (...) [ 128.933099] Call Trace: [ 128.933099] [] ? ath5k_beacon_update+0x57/0x1f8 [ath5k] [ 128.933099] [] ? __sysfs_add_one+0x28/0x76 [ 128.933099] [] ? ath5k_bss_info_changed+0x13f/0x173 [ath5k] [ 128.933099] [] ? ieee80211_config_beacon+0xc0/0x17e [mac80211] [ 128.933099] [] ? ieee80211_bss_info_change_notify+0x182/0x18b [mac80211] [ 128.933099] [] ? ath5k_bss_info_changed+0x0/0x173 [ath5k] [ 128.933099] [] ? ieee80211_config_beacon+0x16d/0x17e [mac80211] [ 128.933099] [] ? ieee80211_add_beacon+0x34/0x39 [mac80211] [ 128.933099] [] ? ieee80211s_init+0xf8/0x10f [mac80211] [ 128.933099] [] ? ieee80211_mesh_init_sdata+0xdb/0x154 [mac80211] Signed-off-by: Javier Cardona Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c index 8251946..29b855c 100644 --- a/drivers/net/wireless/ath/ath5k/base.c +++ b/drivers/net/wireless/ath/ath5k/base.c @@ -1949,8 +1949,9 @@ ath5k_beacon_send(struct ath5k_softc *sc) /* NB: hw still stops DMA, so proceed */ } - /* refresh the beacon for AP mode */ - if (sc->opmode == NL80211_IFTYPE_AP) + /* refresh the beacon for AP or MESH mode */ + if (sc->opmode == NL80211_IFTYPE_AP || + sc->opmode == NL80211_IFTYPE_MESH_POINT) ath5k_beacon_update(sc->hw, vif); ath5k_hw_set_txdp(ah, sc->bhalq, bf->daddr); @@ -2851,7 +2852,8 @@ static int ath5k_add_interface(struct ieee80211_hw *hw, /* Assign the vap/adhoc to a beacon xmit slot. */ if ((avf->opmode == NL80211_IFTYPE_AP) || - (avf->opmode == NL80211_IFTYPE_ADHOC)) { + (avf->opmode == NL80211_IFTYPE_ADHOC) || + (avf->opmode == NL80211_IFTYPE_MESH_POINT)) { int slot; WARN_ON(list_empty(&sc->bcbuf)); -- cgit v0.10.2 From c26d5339424e68f8643cf3448986c4f77b941a65 Mon Sep 17 00:00:00 2001 From: Javier Cardona Date: Tue, 7 Dec 2010 13:36:55 -0800 Subject: ath5k: Prevent mesh interfaces from being counted as ad-hoc This results in an erroneus num_adhoc_vifs count, as the this counter was incremented but not decremented for mesh interfaces. Signed-off-by: Javier Cardona Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c index 29b855c..888502e 100644 --- a/drivers/net/wireless/ath/ath5k/base.c +++ b/drivers/net/wireless/ath/ath5k/base.c @@ -2872,7 +2872,7 @@ static int ath5k_add_interface(struct ieee80211_hw *hw, sc->bslot[avf->bslot] = vif; if (avf->opmode == NL80211_IFTYPE_AP) sc->num_ap_vifs++; - else + else if (avf->opmode == NL80211_IFTYPE_ADHOC) sc->num_adhoc_vifs++; } -- cgit v0.10.2 From b93996cf67d47597efad03d5e5431c7b8b11e688 Mon Sep 17 00:00:00 2001 From: Javier Cardona Date: Tue, 7 Dec 2010 13:37:56 -0800 Subject: ath5k: Put the right tsf value in mesh beacons Signed-off-by: Javier Cardona Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c index 888502e..42ed923 100644 --- a/drivers/net/wireless/ath/ath5k/base.c +++ b/drivers/net/wireless/ath/ath5k/base.c @@ -1917,7 +1917,8 @@ ath5k_beacon_send(struct ath5k_softc *sc) sc->bmisscount = 0; } - if (sc->opmode == NL80211_IFTYPE_AP && sc->num_ap_vifs > 1) { + if ((sc->opmode == NL80211_IFTYPE_AP && sc->num_ap_vifs > 1) || + sc->opmode == NL80211_IFTYPE_MESH_POINT) { u64 tsf = ath5k_hw_get_tsf64(ah); u32 tsftu = TSF_TO_TU(tsf); int slot = ((tsftu % sc->bintval) * ATH_BCBUF) / sc->bintval; -- cgit v0.10.2 From f933ebed7888a9a7d73ebeeb6bcbb3f710c423b4 Mon Sep 17 00:00:00 2001 From: Sujith Manoharan Date: Wed, 1 Dec 2010 12:30:27 +0530 Subject: ath9k_htc: Fix suspend/resume The HW has to be set to FULLSLEEP mode during suspend, when no interface has been brought up. Not doing this would break resume, as the chip won't be powered up at all. Signed-off-by: Sujith Manoharan Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c index dfb6560..0de3c3d 100644 --- a/drivers/net/wireless/ath/ath9k/hif_usb.c +++ b/drivers/net/wireless/ath/ath9k/hif_usb.c @@ -1024,6 +1024,13 @@ static int ath9k_hif_usb_suspend(struct usb_interface *interface, struct hif_device_usb *hif_dev = (struct hif_device_usb *) usb_get_intfdata(interface); + /* + * The device has to be set to FULLSLEEP mode in case no + * interface is up. + */ + if (!(hif_dev->flags & HIF_USB_START)) + ath9k_htc_suspend(hif_dev->htc_handle); + ath9k_hif_usb_dealloc_urbs(hif_dev); return 0; diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h index 75ecf6a..c3b561d 100644 --- a/drivers/net/wireless/ath/ath9k/htc.h +++ b/drivers/net/wireless/ath/ath9k/htc.h @@ -455,6 +455,8 @@ u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv); void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv); void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv); void ath9k_ps_work(struct work_struct *work); +bool ath9k_htc_setpower(struct ath9k_htc_priv *priv, + enum ath9k_power_mode mode); void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv); void ath9k_init_leds(struct ath9k_htc_priv *priv); @@ -464,6 +466,7 @@ int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev, u16 devid, char *product); void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug); #ifdef CONFIG_PM +void ath9k_htc_suspend(struct htc_target *htc_handle); int ath9k_htc_resume(struct htc_target *htc_handle); #endif #ifdef CONFIG_ATH9K_HTC_DEBUGFS diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c index 7c8a38d..8776f49 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c @@ -891,6 +891,12 @@ void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug) } #ifdef CONFIG_PM + +void ath9k_htc_suspend(struct htc_target *htc_handle) +{ + ath9k_htc_setpower(htc_handle->drv_priv, ATH9K_PM_FULL_SLEEP); +} + int ath9k_htc_resume(struct htc_target *htc_handle) { int ret; diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c index 9a3be8d..51977ca 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c @@ -63,8 +63,8 @@ static enum htc_phymode ath9k_htc_get_curmode(struct ath9k_htc_priv *priv, return mode; } -static bool ath9k_htc_setpower(struct ath9k_htc_priv *priv, - enum ath9k_power_mode mode) +bool ath9k_htc_setpower(struct ath9k_htc_priv *priv, + enum ath9k_power_mode mode) { bool ret; -- cgit v0.10.2 From 7e2447075690860e2cea96b119fc9cadbaa7e83c Mon Sep 17 00:00:00 2001 From: Helmut Schaa Date: Thu, 2 Dec 2010 18:44:09 +0100 Subject: mac80211: Fix BUG in pskb_expand_head when transmitting shared skbs mac80211 doesn't handle shared skbs correctly at the moment. As a result a possible resize can trigger a BUG in pskb_expand_head. [ 676.030000] Kernel bug detected[#1]: [ 676.030000] Cpu 0 [ 676.030000] $ 0 : 00000000 00000000 819662ff 00000002 [ 676.030000] $ 4 : 81966200 00000020 00000000 00000020 [ 676.030000] $ 8 : 819662e0 800043c0 00000002 00020000 [ 676.030000] $12 : 3b9aca00 00000000 00000000 00470000 [ 676.030000] $16 : 80ea2000 00000000 00000000 00000000 [ 676.030000] $20 : 818aa200 80ea2018 80ea2000 00000008 [ 676.030000] $24 : 00000002 800ace5c [ 676.030000] $28 : 8199a000 8199bd20 81938f88 80f180d4 [ 676.030000] Hi : 0000026e [ 676.030000] Lo : 0000757e [ 676.030000] epc : 801245e4 pskb_expand_head+0x44/0x1d8 [ 676.030000] Not tainted [ 676.030000] ra : 80f180d4 ieee80211_skb_resize+0xb0/0x114 [mac80211] [ 676.030000] Status: 1000a403 KERNEL EXL IE [ 676.030000] Cause : 10800024 [ 676.030000] PrId : 0001964c (MIPS 24Kc) [ 676.030000] Modules linked in: mac80211_hwsim rt2800lib rt2x00soc rt2x00pci rt2x00lib mac80211 crc_itu_t crc_ccitt cfg80211 compat arc4 aes_generic deflate ecb cbc [last unloaded: rt2800pci] [ 676.030000] Process kpktgend_0 (pid: 97, threadinfo=8199a000, task=81879f48, tls=00000000) [ 676.030000] Stack : ffffffff 00000000 00000000 00000014 00000004 80ea2000 00000000 00000000 [ 676.030000] 818aa200 80f180d4 ffffffff 0000000a 81879f78 81879f48 81879f48 00000018 [ 676.030000] 81966246 80ea2000 818432e0 80f1a420 80203050 81814d98 00000001 81879f48 [ 676.030000] 81879f48 00000018 81966246 818432e0 0000001a 8199bdd4 0000001c 80f1b72c [ 676.030000] 80203020 8001292c 80ef4aa2 7f10b55d 801ab5b8 81879f48 00000188 80005c90 [ 676.030000] ... [ 676.030000] Call Trace: [ 676.030000] [<801245e4>] pskb_expand_head+0x44/0x1d8 [ 676.030000] [<80f180d4>] ieee80211_skb_resize+0xb0/0x114 [mac80211] [ 676.030000] [<80f1a420>] ieee80211_xmit+0x150/0x22c [mac80211] [ 676.030000] [<80f1b72c>] ieee80211_subif_start_xmit+0x6f4/0x73c [mac80211] [ 676.030000] [<8014361c>] pktgen_thread_worker+0xfac/0x16f8 [ 676.030000] [<8002ebe8>] kthread+0x7c/0x88 [ 676.030000] [<80008e0c>] kernel_thread_helper+0x10/0x18 [ 676.030000] [ 676.030000] [ 676.030000] Code: 24020001 10620005 2502001f <0200000d> 0804917a 00000000 2502001f 00441023 00531021 Fix this by making a local copy of shared skbs prior to mangeling them. To avoid copying the skb unnecessarily move the skb_copy call below the checks that don't need write access to the skb. Also, move the assignment of nh_pos and h_pos below the skb_copy to point to the correct skb. It would be possible to avoid another resize of the copied skb by using skb_copy_expand instead of skb_copy but that would make the patch more complex. Also, shared skbs are a corner case right now, so the resize shouldn't matter much. Cc: Johannes Berg Signed-off-by: Helmut Schaa Cc: stable@kernel.org Signed-off-by: John W. Linville diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index df6aac5..7a637b8 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -1737,15 +1737,13 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, int nh_pos, h_pos; struct sta_info *sta = NULL; u32 sta_flags = 0; + struct sk_buff *tmp_skb; if (unlikely(skb->len < ETH_HLEN)) { ret = NETDEV_TX_OK; goto fail; } - nh_pos = skb_network_header(skb) - skb->data; - h_pos = skb_transport_header(skb) - skb->data; - /* convert Ethernet header to proper 802.11 header (based on * operation mode) */ ethertype = (skb->data[12] << 8) | skb->data[13]; @@ -1918,6 +1916,20 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, goto fail; } + /* + * If the skb is shared we need to obtain our own copy. + */ + if (skb_shared(skb)) { + tmp_skb = skb; + skb = skb_copy(skb, GFP_ATOMIC); + kfree_skb(tmp_skb); + + if (!skb) { + ret = NETDEV_TX_OK; + goto fail; + } + } + hdr.frame_control = fc; hdr.duration_id = 0; hdr.seq_ctrl = 0; @@ -1936,6 +1948,9 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, encaps_len = 0; } + nh_pos = skb_network_header(skb) - skb->data; + h_pos = skb_transport_header(skb) - skb->data; + skb_pull(skb, skip_header_bytes); nh_pos -= skip_header_bytes; h_pos -= skip_header_bytes; -- cgit v0.10.2 From ba34fcee476d11e7c9df95932787a22a96ff6e68 Mon Sep 17 00:00:00 2001 From: David Kilroy Date: Sun, 5 Dec 2010 15:45:58 +0000 Subject: orinoco: clear countermeasure setting on commit ... and interface up. In these situations, you are usually trying to connect to a new AP, so keeping TKIP countermeasures active is confusing. This is already how the driver behaves (inadvertently). However, querying SIOCGIWAUTH may tell userspace that countermeasures are active when they aren't. Clear the setting so that the reporting matches what the driver has done.. Signed-off by: David Kilroy Cc: stable@kernel.org Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/orinoco/main.c b/drivers/net/wireless/orinoco/main.c index fa0cf74..f3d396e 100644 --- a/drivers/net/wireless/orinoco/main.c +++ b/drivers/net/wireless/orinoco/main.c @@ -1811,6 +1811,12 @@ static int __orinoco_commit(struct orinoco_private *priv) struct net_device *dev = priv->ndev; int err = 0; + /* If we've called commit, we are reconfiguring or bringing the + * interface up. Maintaining countermeasures across this would + * be confusing, so note that we've disabled them. The port will + * be enabled later in orinoco_commit or __orinoco_up. */ + priv->tkip_cm_active = 0; + err = orinoco_hw_program_rids(priv); /* FIXME: what about netif_tx_lock */ -- cgit v0.10.2 From 0a54917c3fc295cb61f3fb52373c173fd3b69f48 Mon Sep 17 00:00:00 2001 From: David Kilroy Date: Sun, 5 Dec 2010 15:43:55 +0000 Subject: orinoco: fix TKIP countermeasure behaviour Enable the port when disabling countermeasures, and disable it on enabling countermeasures. This bug causes the response of the system to certain attacks to be ineffective. It also prevents wpa_supplicant from getting scan results, as wpa_supplicant disables countermeasures on startup - preventing the hardware from scanning. wpa_supplicant works with ap_mode=2 despite this bug because the commit handler re-enables the port. The log tends to look like: State: DISCONNECTED -> SCANNING Starting AP scan for wildcard SSID Scan requested (ret=0) - scan timeout 5 seconds EAPOL: disable timer tick EAPOL: Supplicant port status: Unauthorized Scan timeout - try to get results Failed to get scan results Failed to get scan results - try scanning again Setting scan request: 1 sec 0 usec Starting AP scan for wildcard SSID Scan requested (ret=-1) - scan timeout 5 seconds Failed to initiate AP scan. Reported by: Giacomo Comes Signed-off by: David Kilroy Cc: stable@kernel.org Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/orinoco/wext.c b/drivers/net/wireless/orinoco/wext.c index 93505f9..e5afabe 100644 --- a/drivers/net/wireless/orinoco/wext.c +++ b/drivers/net/wireless/orinoco/wext.c @@ -911,10 +911,10 @@ static int orinoco_ioctl_set_auth(struct net_device *dev, */ if (param->value) { priv->tkip_cm_active = 1; - ret = hermes_enable_port(hw, 0); + ret = hermes_disable_port(hw, 0); } else { priv->tkip_cm_active = 0; - ret = hermes_disable_port(hw, 0); + ret = hermes_enable_port(hw, 0); } break; -- cgit v0.10.2 From ad9f4f50fe9288bbe65b7dfd76d8820afac6a24c Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 7 Dec 2010 12:03:55 +0000 Subject: tcp: avoid a possible divide by zero sysctl_tcp_tso_win_divisor might be set to zero while one cpu runs in tcp_tso_should_defer(). Make sure we dont allow a divide by zero by reading sysctl_tcp_tso_win_divisor exactly once. 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 3c59ab4..0d4a3ce 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -1512,6 +1512,7 @@ static int tcp_tso_should_defer(struct sock *sk, struct sk_buff *skb) struct tcp_sock *tp = tcp_sk(sk); const struct inet_connection_sock *icsk = inet_csk(sk); u32 send_win, cong_win, limit, in_flight; + int win_divisor; if (TCP_SKB_CB(skb)->flags & TCPHDR_FIN) goto send_now; @@ -1543,13 +1544,14 @@ static int tcp_tso_should_defer(struct sock *sk, struct sk_buff *skb) if ((skb != tcp_write_queue_tail(sk)) && (limit >= skb->len)) goto send_now; - if (sysctl_tcp_tso_win_divisor) { + win_divisor = ACCESS_ONCE(sysctl_tcp_tso_win_divisor); + if (win_divisor) { u32 chunk = min(tp->snd_wnd, tp->snd_cwnd * tp->mss_cache); /* If at least some fraction of a window is available, * just use it. */ - chunk /= sysctl_tcp_tso_win_divisor; + chunk /= win_divisor; if (limit >= chunk) goto send_now; } else { -- cgit v0.10.2 From f19872575ff7819a3723154657a497d9bca66b33 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 7 Dec 2010 12:20:47 +0000 Subject: tcp: protect sysctl_tcp_cookie_size reads Make sure sysctl_tcp_cookie_size is read once in tcp_cookie_size_check(), or we might return an illegal value to caller if sysctl_tcp_cookie_size is changed by another cpu. Signed-off-by: Eric Dumazet Cc: Ben Hutchings Cc: William Allen Simpson Signed-off-by: David S. Miller diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 0d4a3ce..61c2463 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -385,27 +385,30 @@ struct tcp_out_options { */ static u8 tcp_cookie_size_check(u8 desired) { - if (desired > 0) { + int cookie_size; + + if (desired > 0) /* previously specified */ return desired; - } - if (sysctl_tcp_cookie_size <= 0) { + + cookie_size = ACCESS_ONCE(sysctl_tcp_cookie_size); + if (cookie_size <= 0) /* no default specified */ return 0; - } - if (sysctl_tcp_cookie_size <= TCP_COOKIE_MIN) { + + if (cookie_size <= TCP_COOKIE_MIN) /* value too small, specify minimum */ return TCP_COOKIE_MIN; - } - if (sysctl_tcp_cookie_size >= TCP_COOKIE_MAX) { + + if (cookie_size >= TCP_COOKIE_MAX) /* value too large, specify maximum */ return TCP_COOKIE_MAX; - } - if (0x1 & sysctl_tcp_cookie_size) { + + if (cookie_size & 1) /* 8-bit multiple, illegal, fix it */ - return (u8)(sysctl_tcp_cookie_size + 0x1); - } - return (u8)sysctl_tcp_cookie_size; + cookie_size++; + + return (u8)cookie_size; } /* Write previously computed TCP options to the packet. -- cgit v0.10.2 From 7182afea8d1afd432a17c18162cc3fd441d0da93 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 13 Oct 2010 09:13:12 +0000 Subject: IB/uverbs: Handle large number of entries in poll CQ In ib_uverbs_poll_cq() code there is a potential integer overflow if userspace passes in a large cmd.ne. The calls to kmalloc() would allocate smaller buffers than intended, leading to memory corruption. There iss also an information leak if resp wasn't all used. Unprivileged userspace may call this function, although only if an RDMA device that uses this function is present. Fix this by copying CQ entries one at a time, which avoids the allocation entirely, and also by moving this copying into a function that makes sure to initialize all memory copied to userspace. Special thanks to Jason Gunthorpe for his help and advice. Cc: Signed-off-by: Dan Carpenter [ Monkey around with things a bit to avoid bad code generation by gcc when designated initializers are used. - Roland ] Signed-off-by: Roland Dreier diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index b342248..c426992 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -893,68 +893,81 @@ out: return ret ? ret : in_len; } +static int copy_wc_to_user(void __user *dest, struct ib_wc *wc) +{ + struct ib_uverbs_wc tmp; + + tmp.wr_id = wc->wr_id; + tmp.status = wc->status; + tmp.opcode = wc->opcode; + tmp.vendor_err = wc->vendor_err; + tmp.byte_len = wc->byte_len; + tmp.ex.imm_data = (__u32 __force) wc->ex.imm_data; + tmp.qp_num = wc->qp->qp_num; + tmp.src_qp = wc->src_qp; + tmp.wc_flags = wc->wc_flags; + tmp.pkey_index = wc->pkey_index; + tmp.slid = wc->slid; + tmp.sl = wc->sl; + tmp.dlid_path_bits = wc->dlid_path_bits; + tmp.port_num = wc->port_num; + tmp.reserved = 0; + + if (copy_to_user(dest, &tmp, sizeof tmp)) + return -EFAULT; + + return 0; +} + ssize_t ib_uverbs_poll_cq(struct ib_uverbs_file *file, const char __user *buf, int in_len, int out_len) { struct ib_uverbs_poll_cq cmd; - struct ib_uverbs_poll_cq_resp *resp; + struct ib_uverbs_poll_cq_resp resp; + u8 __user *header_ptr; + u8 __user *data_ptr; struct ib_cq *cq; - struct ib_wc *wc; - int ret = 0; - int i; - int rsize; + struct ib_wc wc; + int ret; if (copy_from_user(&cmd, buf, sizeof cmd)) return -EFAULT; - wc = kmalloc(cmd.ne * sizeof *wc, GFP_KERNEL); - if (!wc) - return -ENOMEM; - - rsize = sizeof *resp + cmd.ne * sizeof(struct ib_uverbs_wc); - resp = kmalloc(rsize, GFP_KERNEL); - if (!resp) { - ret = -ENOMEM; - goto out_wc; - } - cq = idr_read_cq(cmd.cq_handle, file->ucontext, 0); - if (!cq) { - ret = -EINVAL; - goto out; - } + if (!cq) + return -EINVAL; - resp->count = ib_poll_cq(cq, cmd.ne, wc); + /* we copy a struct ib_uverbs_poll_cq_resp to user space */ + header_ptr = (void __user *)(unsigned long) cmd.response; + data_ptr = header_ptr + sizeof resp; - put_cq_read(cq); + memset(&resp, 0, sizeof resp); + while (resp.count < cmd.ne) { + ret = ib_poll_cq(cq, 1, &wc); + if (ret < 0) + goto out_put; + if (!ret) + break; + + ret = copy_wc_to_user(data_ptr, &wc); + if (ret) + goto out_put; - for (i = 0; i < resp->count; i++) { - resp->wc[i].wr_id = wc[i].wr_id; - resp->wc[i].status = wc[i].status; - resp->wc[i].opcode = wc[i].opcode; - resp->wc[i].vendor_err = wc[i].vendor_err; - resp->wc[i].byte_len = wc[i].byte_len; - resp->wc[i].ex.imm_data = (__u32 __force) wc[i].ex.imm_data; - resp->wc[i].qp_num = wc[i].qp->qp_num; - resp->wc[i].src_qp = wc[i].src_qp; - resp->wc[i].wc_flags = wc[i].wc_flags; - resp->wc[i].pkey_index = wc[i].pkey_index; - resp->wc[i].slid = wc[i].slid; - resp->wc[i].sl = wc[i].sl; - resp->wc[i].dlid_path_bits = wc[i].dlid_path_bits; - resp->wc[i].port_num = wc[i].port_num; + data_ptr += sizeof(struct ib_uverbs_wc); + ++resp.count; } - if (copy_to_user((void __user *) (unsigned long) cmd.response, resp, rsize)) + if (copy_to_user(header_ptr, &resp, sizeof resp)) { ret = -EFAULT; + goto out_put; + } -out: - kfree(resp); + ret = in_len; -out_wc: - kfree(wc); - return ret ? ret : in_len; +out_put: + put_cq_read(cq); + return ret; } ssize_t ib_uverbs_req_notify_cq(struct ib_uverbs_file *file, -- cgit v0.10.2 From 4e085e76cbe558b79b54cbab772f61185879bc64 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 8 Dec 2010 18:42:23 -0800 Subject: econet: Fix crash in aun_incoming(). Unconditional use of skb->dev won't work here, try to fetch the econet device via skb_dst()->dev instead. Suggested by Eric Dumazet. Reported-by: Nelson Elhage Tested-by: Nelson Elhage Signed-off-by: David S. Miller diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c index f180371..15dcc1a 100644 --- a/net/econet/af_econet.c +++ b/net/econet/af_econet.c @@ -851,9 +851,13 @@ static void aun_incoming(struct sk_buff *skb, struct aunhdr *ah, size_t len) { struct iphdr *ip = ip_hdr(skb); unsigned char stn = ntohl(ip->saddr) & 0xff; + struct dst_entry *dst = skb_dst(skb); + struct ec_device *edev = NULL; struct sock *sk = NULL; struct sk_buff *newskb; - struct ec_device *edev = skb->dev->ec_ptr; + + if (dst) + edev = dst->dev->ec_ptr; if (! edev) goto bad; -- cgit v0.10.2 From 2b74e12e567feb4163e32815bce0be57489e73b9 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 9 Dec 2010 15:59:01 +1100 Subject: md: remove handling of flush_pending in md_submit_flush_data None of the functions called between setting flush_pending to 1, and atomic_dec_and_test can change flush_pending, or will anything running in any other thread (as ->flush_bio is not NULL). So the atomic_dec_and_test will always succeed. So remove the atomic_sec and the atomic_dec_and_test. Signed-off-by: NeilBrown diff --git a/drivers/md/md.c b/drivers/md/md.c index 84c46a1..83b6cb3 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -404,8 +404,6 @@ static void md_submit_flush_data(struct work_struct *ws) mddev_t *mddev = container_of(ws, mddev_t, flush_work); struct bio *bio = mddev->flush_bio; - atomic_set(&mddev->flush_pending, 1); - if (bio->bi_size == 0) /* an empty barrier - all done */ bio_endio(bio, 0); @@ -414,10 +412,9 @@ static void md_submit_flush_data(struct work_struct *ws) if (mddev->pers->make_request(mddev, bio)) generic_make_request(bio); } - if (atomic_dec_and_test(&mddev->flush_pending)) { - mddev->flush_bio = NULL; - wake_up(&mddev->sb_wait); - } + + mddev->flush_bio = NULL; + wake_up(&mddev->sb_wait); } void md_flush_request(mddev_t *mddev, struct bio *bio) -- cgit v0.10.2 From a7a07e69653acf8540daa1da053cd84bf86e8e66 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 9 Dec 2010 16:04:25 +1100 Subject: md: move code in to submit_flushes. submit_flushes is called from exactly one place. Move the code that is before and after that call into submit_flushes. This has not functional change, but will make the next patch smaller and easier to follow. Signed-off-by: NeilBrown diff --git a/drivers/md/md.c b/drivers/md/md.c index 83b6cb3..31f8e15 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -371,10 +371,14 @@ static void md_end_flush(struct bio *bio, int err) bio_put(bio); } +static void md_submit_flush_data(struct work_struct *ws); + static void submit_flushes(mddev_t *mddev) { mdk_rdev_t *rdev; + INIT_WORK(&mddev->flush_work, md_submit_flush_data); + atomic_set(&mddev->flush_pending, 1); rcu_read_lock(); list_for_each_entry_rcu(rdev, &mddev->disks, same_set) if (rdev->raid_disk >= 0 && @@ -397,6 +401,8 @@ static void submit_flushes(mddev_t *mddev) rdev_dec_pending(rdev, mddev); } rcu_read_unlock(); + if (atomic_dec_and_test(&mddev->flush_pending)) + queue_work(md_wq, &mddev->flush_work); } static void md_submit_flush_data(struct work_struct *ws) @@ -426,13 +432,7 @@ void md_flush_request(mddev_t *mddev, struct bio *bio) mddev->flush_bio = bio; spin_unlock_irq(&mddev->write_lock); - atomic_set(&mddev->flush_pending, 1); - INIT_WORK(&mddev->flush_work, md_submit_flush_data); - submit_flushes(mddev); - - if (atomic_dec_and_test(&mddev->flush_pending)) - queue_work(md_wq, &mddev->flush_work); } EXPORT_SYMBOL(md_flush_request); -- cgit v0.10.2 From a035fc3e2531703b539f23bec4ca7943cfc69349 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 9 Dec 2010 16:17:51 +1100 Subject: md: fix possible deadlock in handling flush requests. As recorded in https://bugzilla.kernel.org/show_bug.cgi?id=24012 it is possible for a flush request through md to hang. This is due to an interaction between the recursion avoidance in generic_make_request, the insistence in md of only having one flush active at a time, and the possibility of dm (or md) submitting two flush requests to a device from the one generic_make_request. If a generic_make_request call into dm causes two flush requests to be queued (as happens if the dm table has two targets - they get one each), these two will be queued inside generic_make_request. Assume they are for the same md device. The first is processed and causes 1 or more flush requests to be sent to lower devices. These get queued within generic_make_request too. Then the second flush to the md device gets handled and it blocks waiting for the first flush to complete. But it won't complete until the two lower-device requests complete, and they haven't even been submitted yet as they are on the generic_make_request queue. The deadlock can be broken by using a separate thread to submit the requests to lower devices. md has such a thread readily available: md_wq. So use it to submit these requests. Reported-by: Giacomo Catenazzi Tested-by: Giacomo Catenazzi Signed-off-by: NeilBrown diff --git a/drivers/md/md.c b/drivers/md/md.c index 31f8e15..d66aaed 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -373,8 +373,9 @@ static void md_end_flush(struct bio *bio, int err) static void md_submit_flush_data(struct work_struct *ws); -static void submit_flushes(mddev_t *mddev) +static void submit_flushes(struct work_struct *ws) { + mddev_t *mddev = container_of(ws, mddev_t, flush_work); mdk_rdev_t *rdev; INIT_WORK(&mddev->flush_work, md_submit_flush_data); @@ -432,7 +433,8 @@ void md_flush_request(mddev_t *mddev, struct bio *bio) mddev->flush_bio = bio; spin_unlock_irq(&mddev->write_lock); - submit_flushes(mddev); + INIT_WORK(&mddev->flush_work, submit_flushes); + queue_work(md_wq, &mddev->flush_work); } EXPORT_SYMBOL(md_flush_request); -- cgit v0.10.2 From 1a855a0606653d2d82506281e2c686bacb4b2f45 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 9 Dec 2010 16:36:28 +1100 Subject: md: fix bug with re-adding of partially recovered device. With v0.90 metadata, a hot-spare does not become a full member of the array until recovery is complete. So if we re-add such a device to the array, we know that all of it is as up-to-date as the event count would suggest, and so it a bitmap-based recovery is possible. However with v1.x metadata, the hot-spare immediately becomes a full member of the array, but it record how much of the device has been recovered. If the array is stopped and re-assembled recovery starts from this point. When such a device is hot-added to an array we currently lose the 'how much is recovered' information and incorrectly included it as a full in-sync member (after bitmap-based fixup). This is wrong and unsafe and could corrupt data. So be more careful about setting saved_raid_disk - which is what guides the re-adding of devices back into an array. The new code matches the code in slot_store which does a similar thing, which is encouraging. This is suitable for any -stable kernel. Reported-by: "Dailey, Nate" Cc: stable@kernel.org Signed-off-by: NeilBrown diff --git a/drivers/md/md.c b/drivers/md/md.c index d66aaed..b757da1 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -5159,7 +5159,7 @@ static int add_new_disk(mddev_t * mddev, mdu_disk_info_t *info) PTR_ERR(rdev)); return PTR_ERR(rdev); } - /* set save_raid_disk if appropriate */ + /* set saved_raid_disk if appropriate */ if (!mddev->persistent) { if (info->state & (1<raid_disk < mddev->raid_disks) @@ -5169,7 +5169,10 @@ static int add_new_disk(mddev_t * mddev, mdu_disk_info_t *info) } else super_types[mddev->major_version]. validate_super(mddev, rdev); - rdev->saved_raid_disk = rdev->raid_disk; + if (test_bit(In_sync, &rdev->flags)) + rdev->saved_raid_disk = rdev->raid_disk; + else + rdev->saved_raid_disk = -1; clear_bit(In_sync, &rdev->flags); /* just to be sure */ if (info->state & (1< Date: Thu, 9 Dec 2010 17:02:14 +1100 Subject: md: protect against NULL reference when waiting to start a raid10. When we fail to start a raid10 for some reason, we call md_unregister_thread to kill the thread that was created. Unfortunately md_thread() will then make one call into the handler (raid10d) even though md_wakeup_thread has not been called. This is not safe and as md_unregister_thread is called after mddev->private has been set to NULL, it will definitely cause a NULL dereference. So fix this at both ends: - md_thread should only call the handler if THREAD_WAKEUP has been set. - raid10 should call md_unregister_thread before setting things to NULL just like all the other raid modules do. This is applicable to 2.6.35 and later. Cc: stable@kernel.org Reported-by: "Citizen" Signed-off-by: NeilBrown diff --git a/drivers/md/md.c b/drivers/md/md.c index b757da1..e71c5fa 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -6044,9 +6044,8 @@ static int md_thread(void * arg) || kthread_should_stop(), thread->timeout); - clear_bit(THREAD_WAKEUP, &thread->flags); - - thread->run(thread->mddev); + if (test_and_clear_bit(THREAD_WAKEUP, &thread->flags)) + thread->run(thread->mddev); } return 0; diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index c67aa54..0641674 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -2397,13 +2397,13 @@ static int run(mddev_t *mddev) return 0; out_free_conf: + md_unregister_thread(mddev->thread); if (conf->r10bio_pool) mempool_destroy(conf->r10bio_pool); safe_put_page(conf->tmppage); kfree(conf->mirrors); kfree(conf); mddev->private = NULL; - md_unregister_thread(mddev->thread); out: return -EIO; } -- cgit v0.10.2 From e76116ca9671e2e5239054a40303b94feab585ad Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 8 Dec 2010 19:09:42 -0500 Subject: drm/kms: remove spaces from connector names (v2) Grub doesn't parse spaces in parameters correctly, so this makes it impossible to force video= parameters for kms on the grub kernel command line. v2: shorten the names to make them easier to type. Reported-by: Sergej Pupykin Cc: Sergej Pupykin Signed-off-by: Alex Deucher Cc: stable@kernel.org Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 6985cb1..2baa670 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -156,12 +156,12 @@ static struct drm_conn_prop_enum_list drm_connector_enum_list[] = { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 }, { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 }, { DRM_MODE_CONNECTOR_Component, "Component", 0 }, - { DRM_MODE_CONNECTOR_9PinDIN, "9-pin DIN", 0 }, - { DRM_MODE_CONNECTOR_DisplayPort, "DisplayPort", 0 }, - { DRM_MODE_CONNECTOR_HDMIA, "HDMI Type A", 0 }, - { DRM_MODE_CONNECTOR_HDMIB, "HDMI Type B", 0 }, + { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 }, + { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 }, + { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 }, + { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 }, { DRM_MODE_CONNECTOR_TV, "TV", 0 }, - { DRM_MODE_CONNECTOR_eDP, "Embedded DisplayPort", 0 }, + { DRM_MODE_CONNECTOR_eDP, "eDP", 0 }, }; static struct drm_prop_enum_list drm_encoder_enum_list[] = -- cgit v0.10.2 From 8a96b1e02029aa512199b1b6d281dcede9ed81f1 Mon Sep 17 00:00:00 2001 From: David Henningsson Date: Thu, 9 Dec 2010 07:17:27 +0100 Subject: ALSA: HDA: Quirk for Dell Vostro 320 to make microphone work BugLink: http://launchpad.net/497546 Confirmed that the ideapad model works better than the current quirk for Dell Vostro 320. Cc: stable@kernel.org (2.6.35+) Signed-off-by: David Henningsson Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index 4ab5ea9..76bd58a 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -3096,8 +3096,7 @@ static const char *cxt5066_models[CXT5066_MODELS] = { static struct snd_pci_quirk cxt5066_cfg_tbl[] = { SND_PCI_QUIRK_MASK(0x1025, 0xff00, 0x0400, "Acer", CXT5066_IDEAPAD), SND_PCI_QUIRK(0x1028, 0x02d8, "Dell Vostro", CXT5066_DELL_VOSTRO), - SND_PCI_QUIRK(0x1028, 0x02f5, "Dell", - CXT5066_DELL_LAPTOP), + SND_PCI_QUIRK(0x1028, 0x02f5, "Dell Vostro 320", CXT5066_IDEAPAD), SND_PCI_QUIRK(0x1028, 0x0402, "Dell Vostro", CXT5066_DELL_VOSTRO), SND_PCI_QUIRK(0x1028, 0x0408, "Dell Inspiron One 19T", CXT5066_IDEAPAD), SND_PCI_QUIRK(0x103c, 0x360b, "HP G60", CXT5066_HP_LAPTOP), -- cgit v0.10.2 From 6f331623b99e1900e3a664bbe6e95406ff4b27f4 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 9 Dec 2010 08:35:40 +0300 Subject: drm: use after free in drm_queue_vblank_event() The "e" pointer is either NULL or freed when we call drm_vblank_put(dev, e->pipe) on the error path. Just pass the "pipe" variable directly instead. I changed another caller to use "pipe" as well for consistency. Signed-off-by: Dan Carpenter Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index 722700d..16d5155 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -628,7 +628,7 @@ static int drm_queue_vblank_event(struct drm_device *dev, int pipe, if ((seq - vblwait->request.sequence) <= (1 << 23)) { e->event.tv_sec = now.tv_sec; e->event.tv_usec = now.tv_usec; - drm_vblank_put(dev, e->pipe); + drm_vblank_put(dev, pipe); list_add_tail(&e->base.link, &e->base.file_priv->event_list); wake_up_interruptible(&e->base.file_priv->event_wait); trace_drm_vblank_event_delivered(current->pid, pipe, @@ -645,7 +645,7 @@ err_unlock: spin_unlock_irqrestore(&dev->event_lock, flags); kfree(e); err_put: - drm_vblank_put(dev, e->pipe); + drm_vblank_put(dev, pipe); return ret; } -- cgit v0.10.2 From f3886f85cfde578f1d0ba6e40ac5f9d70043923b Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 8 Dec 2010 10:05:34 -0500 Subject: drm/radeon/kms: don't apply 7xx HDP flush workaround on AGP It should be required for all 7xx asics, but seems to cause problems on some AGP 7xx chips. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=19002 Signed-off-by: Alex Deucher Reported-and-Tested-by: Duncan <1i5t5.duncan@cox.net> Cc: stable@kernel.org Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index a322d4f..4d7a2e1 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -878,12 +878,15 @@ void r600_pcie_gart_tlb_flush(struct radeon_device *rdev) u32 tmp; /* flush hdp cache so updates hit vram */ - if ((rdev->family >= CHIP_RV770) && (rdev->family <= CHIP_RV740)) { + if ((rdev->family >= CHIP_RV770) && (rdev->family <= CHIP_RV740) && + !(rdev->flags & RADEON_IS_AGP)) { void __iomem *ptr = (void *)rdev->gart.table.vram.ptr; u32 tmp; /* r7xx hw bug. write to HDP_DEBUG1 followed by fb read * rather than write to HDP_REG_COHERENCY_FLUSH_CNTL + * This seems to cause problems on some AGP cards. Just use the old + * method for them. */ WREG32(HDP_DEBUG1, 0); tmp = readl((void __iomem *)ptr); @@ -3485,10 +3488,12 @@ int r600_debugfs_mc_info_init(struct radeon_device *rdev) void r600_ioctl_wait_idle(struct radeon_device *rdev, struct radeon_bo *bo) { /* r7xx hw bug. write to HDP_DEBUG1 followed by fb read - * rather than write to HDP_REG_COHERENCY_FLUSH_CNTL + * rather than write to HDP_REG_COHERENCY_FLUSH_CNTL. + * This seems to cause problems on some AGP cards. Just use the old + * method for them. */ if ((rdev->family >= CHIP_RV770) && (rdev->family <= CHIP_RV740) && - rdev->vram_scratch.ptr) { + rdev->vram_scratch.ptr && !(rdev->flags & RADEON_IS_AGP)) { void __iomem *ptr = (void *)rdev->vram_scratch.ptr; u32 tmp; -- cgit v0.10.2 From 4f58670709af7b890eceab325e9e470f209459ca Mon Sep 17 00:00:00 2001 From: Danny Huang Date: Wed, 1 Dec 2010 13:37:28 -0700 Subject: regulator: tps6586x: Add missing bit mask generation Change-Id: I76eaceb31b56264f6978af15db1e6fc7e2e01b5a Signed-off-by: Danny Huang Signed-off-by: Olof Johansson Signed-off-by: Stephen Warren Acked-by: Mark Brown (Split into separate patches) Signed-off-by: Liam Girdwood diff --git a/drivers/regulator/tps6586x-regulator.c b/drivers/regulator/tps6586x-regulator.c index 51237fb..0e59e81 100644 --- a/drivers/regulator/tps6586x-regulator.c +++ b/drivers/regulator/tps6586x-regulator.c @@ -298,14 +298,14 @@ static inline int tps6586x_regulator_preinit(struct device *parent, if (ret) return ret; - if (!(val2 & ri->enable_bit[1])) + if (!(val2 & (1 << ri->enable_bit[1]))) return 0; /* * The regulator is on, but it's enabled with the bit we don't * want to use, so we switch the enable bits */ - if (!(val1 & ri->enable_bit[0])) { + if (!(val1 & (1 << ri->enable_bit[0]))) { ret = tps6586x_set_bits(parent, ri->enable_reg[0], 1 << ri->enable_bit[0]); if (ret) -- cgit v0.10.2 From 64db657b5a45f1676d421e2bdfb7d4910dce87d3 Mon Sep 17 00:00:00 2001 From: Danny Huang Date: Wed, 1 Dec 2010 13:37:29 -0700 Subject: regulator: tps6586x: Fix TPS6586X_DVM to store goreg/bit Change-Id: Idacf5e1e51dbbbcd5ea93f310a4e907977e7359e Signed-off-by: Danny Huang Signed-off-by: Olof Johansson Signed-off-by: Stephen Warren Acked-by: Mark Brown (Split into separate patches) (Minor formatting fixes) Signed-off-by: Liam Girdwood diff --git a/drivers/regulator/tps6586x-regulator.c b/drivers/regulator/tps6586x-regulator.c index 0e59e81..effa677 100644 --- a/drivers/regulator/tps6586x-regulator.c +++ b/drivers/regulator/tps6586x-regulator.c @@ -231,8 +231,7 @@ static int tps6586x_dvm_voltages[] = { }; #define TPS6586X_REGULATOR(_id, vdata, _ops, vreg, shift, nbits, \ - ereg0, ebit0, ereg1, ebit1, goreg, gobit) \ -{ \ + ereg0, ebit0, ereg1, ebit1) \ .desc = { \ .name = "REG-" #_id, \ .ops = &tps6586x_regulator_##_ops, \ @@ -248,18 +247,26 @@ static int tps6586x_dvm_voltages[] = { .enable_bit[0] = (ebit0), \ .enable_reg[1] = TPS6586X_SUPPLY##ereg1, \ .enable_bit[1] = (ebit1), \ - .voltages = tps6586x_##vdata##_voltages, \ -} + .voltages = tps6586x_##vdata##_voltages, + +#define TPS6586X_REGULATOR_DVM_GOREG(goreg, gobit) \ + .go_reg = TPS6586X_##goreg, \ + .go_bit = (gobit), #define TPS6586X_LDO(_id, vdata, vreg, shift, nbits, \ ereg0, ebit0, ereg1, ebit1) \ +{ \ TPS6586X_REGULATOR(_id, vdata, ldo_ops, vreg, shift, nbits, \ - ereg0, ebit0, ereg1, ebit1, 0, 0) + ereg0, ebit0, ereg1, ebit1) \ +} #define TPS6586X_DVM(_id, vdata, vreg, shift, nbits, \ ereg0, ebit0, ereg1, ebit1, goreg, gobit) \ +{ \ TPS6586X_REGULATOR(_id, vdata, dvm_ops, vreg, shift, nbits, \ - ereg0, ebit0, ereg1, ebit1, goreg, gobit) + ereg0, ebit0, ereg1, ebit1) \ + TPS6586X_REGULATOR_DVM_GOREG(goreg, gobit) \ +} static struct tps6586x_regulator tps6586x_regulator[] = { TPS6586X_LDO(LDO_0, ldo, SUPPLYV1, 5, 3, ENC, 0, END, 0), -- cgit v0.10.2 From 1dbcf35cb5b775e564a793a338c7c3eb65fc6980 Mon Sep 17 00:00:00 2001 From: Danny Huang Date: Wed, 1 Dec 2010 13:37:30 -0700 Subject: regulator: tps6586x: Handle both enable reg/bits being the same Change-Id: I40400bb65eab496bb1becd26b37a9653b99d4f41 Signed-off-by: Danny Huang Signed-off-by: Olof Johansson Signed-off-by: Stephen Warren Acked-by: Mark Brown (Split into separate patches) Signed-off-by: Liam Girdwood diff --git a/drivers/regulator/tps6586x-regulator.c b/drivers/regulator/tps6586x-regulator.c index effa677..c668944 100644 --- a/drivers/regulator/tps6586x-regulator.c +++ b/drivers/regulator/tps6586x-regulator.c @@ -297,6 +297,10 @@ static inline int tps6586x_regulator_preinit(struct device *parent, uint8_t val1, val2; int ret; + if (ri->enable_reg[0] == ri->enable_reg[1] && + ri->enable_bit[0] == ri->enable_bit[1]) + return 0; + ret = tps6586x_read(parent, ri->enable_reg[0], &val1); if (ret) return ret; -- cgit v0.10.2 From 1b39ed0cf51193f3ba03044369ab4d144712a9b8 Mon Sep 17 00:00:00 2001 From: Danny Huang Date: Wed, 1 Dec 2010 13:37:31 -0700 Subject: regulator: tps6586x: correct register table Correct the register table for SM2, LDO8, RTC Change-Id: I45348cec5ffbb7da9bd7523764fb611b537236b8 Signed-off-by: Danny Huang Signed-off-by: Olof Johansson Signed-off-by: Stephen Warren Acked-by: Mark Brown Signed-off-by: Liam Girdwood diff --git a/drivers/regulator/tps6586x-regulator.c b/drivers/regulator/tps6586x-regulator.c index c668944..6d20b04 100644 --- a/drivers/regulator/tps6586x-regulator.c +++ b/drivers/regulator/tps6586x-regulator.c @@ -274,11 +274,11 @@ static struct tps6586x_regulator tps6586x_regulator[] = { TPS6586X_LDO(LDO_5, ldo, SUPPLYV6, 0, 3, ENE, 6, ENE, 6), TPS6586X_LDO(LDO_6, ldo, SUPPLYV3, 0, 3, ENC, 4, END, 4), TPS6586X_LDO(LDO_7, ldo, SUPPLYV3, 3, 3, ENC, 5, END, 5), - TPS6586X_LDO(LDO_8, ldo, SUPPLYV1, 5, 3, ENC, 6, END, 6), + TPS6586X_LDO(LDO_8, ldo, SUPPLYV2, 5, 3, ENC, 6, END, 6), TPS6586X_LDO(LDO_9, ldo, SUPPLYV6, 3, 3, ENE, 7, ENE, 7), - TPS6586X_LDO(LDO_RTC, ldo, SUPPLYV4, 3, 3, ENE, 7, ENE, 7), + TPS6586X_LDO(LDO_RTC, ldo, SUPPLYV4, 3, 3, V4, 7, V4, 7), TPS6586X_LDO(LDO_1, dvm, SUPPLYV1, 0, 5, ENC, 1, END, 1), - TPS6586X_LDO(SM_2, sm2, SUPPLYV2, 0, 5, ENC, 1, END, 1), + TPS6586X_LDO(SM_2, sm2, SUPPLYV2, 0, 5, ENC, 7, END, 7), TPS6586X_DVM(LDO_2, dvm, LDO2BV1, 0, 5, ENA, 3, ENB, 3, VCC2, 6), TPS6586X_DVM(LDO_4, ldo4, LDO4V1, 0, 5, ENC, 3, END, 3, VCC1, 6), -- cgit v0.10.2 From 057f02a38e67a944a2d0b89bb0111efb9dbe6e6e Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 12 Nov 2010 07:31:46 +0300 Subject: [SCSI] osd: checking NULL instead of ERR_PTR() bio_map_kern() returns ERR_PTRs on failure and never returns NULL. [jejb: remove redundant unlikely spotted by Tobias Klauser] Signed-off-by: Dan Carpenter Acked-by: Boaz Harrosh Signed-off-by: James Bottomley diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c index 0433ea6..b37c8a3 100644 --- a/drivers/scsi/osd/osd_initiator.c +++ b/drivers/scsi/osd/osd_initiator.c @@ -951,8 +951,8 @@ static int _osd_req_finalize_cdb_cont(struct osd_request *or, const u8 *cap_key) /* create a bio for continuation segment */ bio = bio_map_kern(req_q, or->cdb_cont.buff, or->cdb_cont.total_bytes, GFP_KERNEL); - if (unlikely(!bio)) - return -ENOMEM; + if (IS_ERR(bio)) + return PTR_ERR(bio); bio->bi_rw |= REQ_WRITE; -- cgit v0.10.2 From c7a841f3aca469187db76842676951a672fd27d1 Mon Sep 17 00:00:00 2001 From: James Smart Date: Sun, 14 Nov 2010 11:12:04 -0500 Subject: [SCSI] bsg: correct fault if queue object removed while dev_t open This patch corrects an issue in bsg that results in a general protection fault if an LLD is removed while an application is using an open file handle to a bsg device, and the application issues an ioctl. The fault occurs because the class_dev is NULL, having been cleared in bsg_unregister_queue() when the driver was removed. With this patch, a check is made for the class_dev, and the application will receive ENXIO if the related object is gone. Signed-off-by: Carl Lajeunesse Signed-off-by: James Smart Signed-off-by: James Bottomley diff --git a/block/bsg.c b/block/bsg.c index f20d6a7..0c8b64a 100644 --- a/block/bsg.c +++ b/block/bsg.c @@ -250,6 +250,14 @@ bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr, fmode_t has_write_perm, int ret, rw; unsigned int dxfer_len; void *dxferp = NULL; + struct bsg_class_device *bcd = &q->bsg_dev; + + /* if the LLD has been removed then the bsg_unregister_queue will + * eventually be called and the class_dev was freed, so we can no + * longer use this request_queue. Return no such address. + */ + if (!bcd->class_dev) + return ERR_PTR(-ENXIO); dprintk("map hdr %llx/%u %llx/%u\n", (unsigned long long) hdr->dout_xferp, hdr->dout_xfer_len, (unsigned long long) hdr->din_xferp, -- cgit v0.10.2 From 5da61410054d125e63aeab9cc7a11874a69465c0 Mon Sep 17 00:00:00 2001 From: Anil Ravindranath Date: Tue, 16 Nov 2010 13:43:41 -0800 Subject: [SCSI] pmcraid: disable msix and expand device config entry Firmware requires a larger configuration entry size than the driver currently allows, and MSI-X pretty much doesn't work with current FW, so disable it for now. Signed-off-by: Anil Ravindranath Signed-off-by: James Bottomley diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c index 5e76a62..300d59f 100644 --- a/drivers/scsi/pmcraid.c +++ b/drivers/scsi/pmcraid.c @@ -62,6 +62,7 @@ static unsigned int pmcraid_debug_log; static unsigned int pmcraid_disable_aen; static unsigned int pmcraid_log_level = IOASC_LOG_LEVEL_MUST; +static unsigned int pmcraid_enable_msix; /* * Data structures to support multiple adapters by the LLD. @@ -4691,7 +4692,8 @@ pmcraid_register_interrupt_handler(struct pmcraid_instance *pinstance) int rc; struct pci_dev *pdev = pinstance->pdev; - if (pci_find_capability(pdev, PCI_CAP_ID_MSIX)) { + if ((pmcraid_enable_msix) && + (pci_find_capability(pdev, PCI_CAP_ID_MSIX))) { int num_hrrq = PMCRAID_NUM_MSIX_VECTORS; struct msix_entry entries[PMCRAID_NUM_MSIX_VECTORS]; int i; diff --git a/drivers/scsi/pmcraid.h b/drivers/scsi/pmcraid.h index 1134279..4db210d 100644 --- a/drivers/scsi/pmcraid.h +++ b/drivers/scsi/pmcraid.h @@ -42,7 +42,7 @@ */ #define PMCRAID_DRIVER_NAME "PMC MaxRAID" #define PMCRAID_DEVFILE "pmcsas" -#define PMCRAID_DRIVER_VERSION "2.0.3" +#define PMCRAID_DRIVER_VERSION "1.0.3" #define PMCRAID_DRIVER_DATE __DATE__ #define PMCRAID_FW_VERSION_1 0x002 @@ -333,11 +333,9 @@ struct pmcraid_config_table_entry { __u8 lun[PMCRAID_LUN_LEN]; } __attribute__((packed, aligned(4))); -/* extended configuration table sizes are of 64 bytes in size */ -#define PMCRAID_CFGTE_EXT_SIZE 32 +/* extended configuration table sizes are also of 32 bytes in size */ struct pmcraid_config_table_entry_ext { struct pmcraid_config_table_entry cfgte; - __u8 cfgte_ext[PMCRAID_CFGTE_EXT_SIZE]; }; /* resource types (config_table_entry.resource_type values) */ -- cgit v0.10.2 From 459dbf72e4d2b4aa13620e6b70d54f098547bf13 Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Wed, 17 Nov 2010 10:10:57 -0600 Subject: [SCSI] Eliminate error handler overload of the SCSI serial number The error handler is using the test cmd->serial_number == 0 in the abort routines to signal that the command to be aborted has already completed normally. This design was to close a race window in the original error handler where a command could go through the normal completion routines after it timed out but before error handling was started. Mike Anderson pointed out that when we converted our timeout and softirq completions, we picked up atomicity here because the block layer now mediates this with the REQ_ATOM_COMPLETE flag and guarantees that *either* the command times out or our done routine is called, but ensures we can't get both occurring. That makes the serial number zero check redundant and it can be removed. Signed-off-by: James Bottomley diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 824b8fc..30ac116 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -615,7 +615,7 @@ static int scsi_try_bus_device_reset(struct scsi_cmnd *scmd) return rtn; } -static int __scsi_try_to_abort_cmd(struct scsi_cmnd *scmd) +static int scsi_try_to_abort_cmd(struct scsi_cmnd *scmd) { if (!scmd->device->host->hostt->eh_abort_handler) return FAILED; @@ -623,31 +623,9 @@ static int __scsi_try_to_abort_cmd(struct scsi_cmnd *scmd) return scmd->device->host->hostt->eh_abort_handler(scmd); } -/** - * scsi_try_to_abort_cmd - Ask host to abort a running command. - * @scmd: SCSI cmd to abort from Lower Level. - * - * Notes: - * This function will not return until the user's completion function - * has been called. there is no timeout on this operation. if the - * author of the low-level driver wishes this operation to be timed, - * they can provide this facility themselves. helper functions in - * scsi_error.c can be supplied to make this easier to do. - */ -static int scsi_try_to_abort_cmd(struct scsi_cmnd *scmd) -{ - /* - * scsi_done was called just after the command timed out and before - * we had a chance to process it. (db) - */ - if (scmd->serial_number == 0) - return SUCCESS; - return __scsi_try_to_abort_cmd(scmd); -} - static void scsi_abort_eh_cmnd(struct scsi_cmnd *scmd) { - if (__scsi_try_to_abort_cmd(scmd) != SUCCESS) + if (scsi_try_to_abort_cmd(scmd) != SUCCESS) if (scsi_try_bus_device_reset(scmd) != SUCCESS) if (scsi_try_target_reset(scmd) != SUCCESS) if (scsi_try_bus_reset(scmd) != SUCCESS) diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index eafeeda..5b6bbae 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1403,11 +1403,6 @@ static void scsi_softirq_done(struct request *rq) INIT_LIST_HEAD(&cmd->eh_entry); - /* - * Set the serial numbers back to zero - */ - cmd->serial_number = 0; - atomic_inc(&cmd->device->iodone_cnt); if (cmd->result) atomic_inc(&cmd->device->ioerr_cnt); -- cgit v0.10.2 From 5bfb2c31487eaff3840e02548e6acf89a048765b Mon Sep 17 00:00:00 2001 From: Swen Schillig Date: Wed, 17 Nov 2010 14:23:40 +0100 Subject: [SCSI] zfcp: Fix common FCP request reception The reception of a common FCP request should only be evaluated if the corresponding SCSI request data is available. Therefore put the information under the lock protection and verify the existence before processing. This fixes the following kernel panic. Unable to handle kernel pointer dereference at virtual kernel address 0000000180000000 Oops: 003b [#1] PREEMPT SMP DEBUG_PAGEALLOC CPU: 0 Not tainted 2.6.35.7-45.x.20101007-s390xdefault #1 Process blast (pid: 9711, task: 00000000a3be8e40, ksp: 00000000b221bac0) Krnl PSW : 0704300180000000 0000000000489878 (zfcp_fsf_fcp_handler_common+0x4c/0x3a0) R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:3 PM:0 EA:3 Krnl GPRS: 00000000b663c1b8 0000000180000000 000000007ab5bdf0 0000000000000000 00000000b0ccd800 0000000000000018 07000000a3be8e78 00000000b5d3e600 000000007ab5bdf0 0000000000000066 00000000b72137f0 00000000b72137f0 0000000000000000 00000000005a8178 00000000bdf37a60 00000000bdf379f0 Krnl Code: 0000000000489866: e3c030000004 lg %r12,0(%r3) 000000000048986c: e310c0000004 lg %r1,0(%r12) 0000000000489872: e31011e00004 lg %r1,480(%r1) >0000000000489878: 581011ec l %r1,492(%r1) 000000000048987c: a774001c brc 7,4898b4 0000000000489880: b91400b1 lgfr %r11,%r1 0000000000489884: 5810405c l %r1,92(%r4) 0000000000489888: 5510d00c cl %r1,12(%r13) Call Trace: ([<000000000010d344>] debug_event_common+0x22c/0x244) [<000000000048a0b4>] zfcp_fsf_fcp_cmnd_handler+0x2c/0x3b4 [<000000000048b5b6>] zfcp_fsf_req_complete+0x1b6/0x9dc [<000000000048bede>] zfcp_fsf_reqid_check+0x102/0x138 [<000000000048e478>] zfcp_qdio_int_resp+0x70/0x110 [<000000000044a1ec>] qdio_kick_handler+0xb0/0x19c [<000000000044c228>] __tiqdio_inbound_processing+0x30c/0xebc [<000000000014a5fc>] tasklet_action+0x1b4/0x1e8 [<000000000014b676>] __do_softirq+0x106/0x1cc [<000000000010d91a>] do_softirq+0xe6/0xec [<000000000014b0c8>] irq_exit+0xd4/0xd8 [<00000000004307ec>] do_IRQ+0x7c0/0xf54 [<0000000000114d28>] io_return+0x0/0x16 [<000000000055fef0>] sub_preempt_count+0x50/0xe4 ([<00000000b1f873c0>] 0xb1f873c0) [<000000000055e25a>] _raw_spin_unlock+0x46/0x74 [<0000000000241c40>] __d_lookup+0x288/0x2c8 [<000000000023502c>] do_lookup+0x7c/0x25c [<0000000000237fa8>] link_path_walk+0x5e4/0xe2c [<0000000000238a00>] path_walk+0x98/0x148 [<0000000000238c98>] do_path_lookup+0x74/0xc0 [<000000000023989c>] user_path_at+0x64/0xa4 [<000000000022e366>] vfs_fstatat+0x4e/0xb0 [<000000000022e4d6>] SyS_newstat+0x2e/0x54 [<00000000001146de>] sysc_noemu+0x10/0x16 [<0000020000153456>] 0x20000153456 INFO: lockdep is turned off. Last Breaking-Event-Address: [<000000000048a0ae>] zfcp_fsf_fcp_cmnd_handler+0x26/0x3b4 Signed-off-by: Swen Schillig Signed-off-by: Christof Schmitt Signed-off-by: James Bottomley diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index be03174..aa0cd23 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -2069,8 +2069,6 @@ static void zfcp_fsf_fcp_cmnd_handler(struct zfcp_fsf_req *req) struct fcp_resp_with_ext *fcp_rsp; unsigned long flags; - zfcp_fsf_fcp_handler_common(req); - read_lock_irqsave(&req->adapter->abort_lock, flags); scpnt = req->data; @@ -2079,6 +2077,8 @@ static void zfcp_fsf_fcp_cmnd_handler(struct zfcp_fsf_req *req) return; } + zfcp_fsf_fcp_handler_common(req); + if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { set_host_byte(scpnt, DID_TRANSPORT_DISRUPTED); goto skip_fsfstatus; -- cgit v0.10.2 From 6fbf25e86beef1c6719e760a241a7aef9ad145e3 Mon Sep 17 00:00:00 2001 From: Swen Schillig Date: Wed, 17 Nov 2010 14:23:41 +0100 Subject: [SCSI] zfcp: Correct false abort data assignment. The request data assignment between the fsf abort initiator and its corresponding handler is not consistent and leads to an unpredictable behaviour, e.g. kernel panic. This patch fixes this issue and assigns the correct value. Signed-off-by: Swen Schillig Signed-off-by: Christof Schmitt Signed-off-by: James Bottomley diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index aa0cd23..f75707a 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -851,7 +851,7 @@ struct zfcp_fsf_req *zfcp_fsf_abort_fcp_cmnd(struct scsi_cmnd *scmnd) zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); - req->data = zfcp_sdev; + req->data = sdev; req->handler = zfcp_fsf_abort_fcp_command_handler; req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; req->qtcb->header.port_handle = zfcp_sdev->port->handle; -- cgit v0.10.2 From d3e1088d68735eb7da12f79a0c3c0d951cbc89f1 Mon Sep 17 00:00:00 2001 From: Swen Schillig Date: Wed, 17 Nov 2010 14:23:42 +0100 Subject: [SCSI] zfcp: No ERP escalation on gpn_ft eval If the evaluation of GPN_FT requests wants to remove an invalid port from the system the zfcp_erp_port_shutdown function is triggered. Depending on the system status a superior action (e.g. adapter reopen) is required. This can lead to an invalid mem access of the port struct which might be freed at the time since the superior action is not holding a reference of the port which triggered this ERP action. Signed-off-by: Swen Schillig Signed-off-by: Christof Schmitt Signed-off-by: James Bottomley diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index d37c733..63422c1 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -156,6 +156,8 @@ static int zfcp_erp_required_act(int want, struct zfcp_adapter *adapter, if (!(a_status & ZFCP_STATUS_COMMON_RUNNING) || a_status & ZFCP_STATUS_COMMON_ERP_FAILED) return 0; + if (p_status & ZFCP_STATUS_COMMON_NOESC) + return need; if (!(a_status & ZFCP_STATUS_COMMON_UNBLOCKED)) need = ZFCP_ERP_ACTION_REOPEN_ADAPTER; /* fall through */ -- cgit v0.10.2 From 14718e3cd8e9c6937114cebbf3ce5d504328da8c Mon Sep 17 00:00:00 2001 From: Swen Schillig Date: Wed, 17 Nov 2010 14:23:43 +0100 Subject: [SCSI] zfcp: Prevent usage w/o holding a reference The ERP got values assigned for which no reference was taken. This can lead to an unpredictable race condition. Fix this by only assigning the values which are required and for which a reference was pulled or is held implicitly. Signed-off-by: Swen Schillig Signed-off-by: Christof Schmitt Signed-off-by: James Bottomley diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index 63422c1..0bcd580 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -190,6 +190,9 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, u32 act_status, atomic_set_mask(ZFCP_STATUS_COMMON_ERP_INUSE, &zfcp_sdev->status); erp_action = &zfcp_sdev->erp_action; + memset(erp_action, 0, sizeof(struct zfcp_erp_action)); + erp_action->port = port; + erp_action->sdev = sdev; if (!(atomic_read(&zfcp_sdev->status) & ZFCP_STATUS_COMMON_RUNNING)) act_status |= ZFCP_STATUS_ERP_CLOSE_ONLY; @@ -202,6 +205,8 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, u32 act_status, zfcp_erp_action_dismiss_port(port); atomic_set_mask(ZFCP_STATUS_COMMON_ERP_INUSE, &port->status); erp_action = &port->erp_action; + memset(erp_action, 0, sizeof(struct zfcp_erp_action)); + erp_action->port = port; if (!(atomic_read(&port->status) & ZFCP_STATUS_COMMON_RUNNING)) act_status |= ZFCP_STATUS_ERP_CLOSE_ONLY; break; @@ -211,6 +216,7 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, u32 act_status, zfcp_erp_action_dismiss_adapter(adapter); atomic_set_mask(ZFCP_STATUS_COMMON_ERP_INUSE, &adapter->status); erp_action = &adapter->erp_action; + memset(erp_action, 0, sizeof(struct zfcp_erp_action)); if (!(atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_RUNNING)) act_status |= ZFCP_STATUS_ERP_CLOSE_ONLY; @@ -220,10 +226,7 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, u32 act_status, return NULL; } - memset(erp_action, 0, sizeof(struct zfcp_erp_action)); erp_action->adapter = adapter; - erp_action->port = port; - erp_action->sdev = sdev; erp_action->action = need; erp_action->status = act_status; -- cgit v0.10.2 From e55f87531c2c1eb071a296df7eb67f83d5f0b5df Mon Sep 17 00:00:00 2001 From: Christof Schmitt Date: Thu, 18 Nov 2010 14:53:18 +0100 Subject: [SCSI] zfcp: Issue FCP command without holding SCSI host_lock Interrupting the connection to the FCP channel while I/O requests are being issued can lead to this deadlock. scsi_dispatch_cmd already holds the host_lock while the recovery trigger tries to acquire the host_lock again when iterating through the scsi_devices. INFO: lockdep is turned off. BUG: spinlock lockup on CPU#1, blast/9660, 0000000078f38878 CPU: 1 Not tainted 2.6.35.7SWEN2 #2 Process blast (pid: 9660, task: 0000000071f75940, ksp: 0000000074393ac0) 0000000074393640 00000000743935c0 0000000000000002 0000000000000000 0000000074393660 00000000743935d8 00000000743935d8 00000000005590c2 0000000000000000 0000000078f38878 0000000026ede800 0000000078f38878 000000000000000d 040000000000000c 0000000074393628 0000000000000000 0000000000000000 0000000000100b2a 00000000743935c0 0000000074393600 Call Trace: ([<0000000000100a32>] show_trace+0xee/0x144) [<00000000003be202>] do_raw_spin_lock+0x112/0x178 [<000000000055d408>] _raw_spin_lock_irqsave+0x90/0xb0 [<00000000003f1514>] __scsi_iterate_devices+0x38/0xbc [<00000000004849b0>] zfcp_erp_clear_adapter_status+0xd0/0x16c [<000000000048587a>] zfcp_erp_adapter_reopen+0x3a/0xb4 [<0000000000489812>] zfcp_fsf_req_send+0x166/0x180 [<000000000048c8d6>] zfcp_fsf_fcp_cmnd+0x272/0x408 [<000000000048f864>] zfcp_scsi_queuecommand+0x11c/0x1e0 [<00000000003f1f2a>] scsi_dispatch_cmd+0x1d6/0x324 [<00000000003f9910>] scsi_request_fn+0x42c/0x56c [<00000000003828ae>] __blk_run_queue+0x86/0x140 [<000000000037f742>] elv_insert+0x11a/0x208 [<000000000038104c>] blk_insert_cloned_request+0x84/0xe4 [<000003c0032b7c64>] dm_dispatch_request+0x6c/0x94 [dm_mod] [<000003c0032b7d5c>] map_request+0xd0/0x100 [dm_mod] [<000003c0032b9a78>] dm_request_fn+0xec/0x1bc [dm_mod] [<0000000000382c0e>] generic_unplug_device+0x5a/0x6c [<000003c0032b7f98>] dm_unplug_all+0x74/0x9c [dm_mod] [<00000000001d1272>] sync_page+0x76/0x9c [<00000000001d12ba>] sync_page_killable+0x22/0x60 [<000000000055a768>] __wait_on_bit_lock+0xc0/0x124 [<00000000001d1140>] __lock_page_killable+0x78/0x84 [<00000000001d351c>] generic_file_aio_read+0x5a4/0x7e8 [<0000000000228ec0>] do_sync_read+0xc8/0x12c [<0000000000229edc>] vfs_read+0xac/0x1ac [<000000000022a0d8>] SyS_read+0x58/0xa8 [<00000000001146de>] sysc_noemu+0x10/0x16 [<00000200000493c4>] 0x200000493c4 INFO: lockdep is turned off. Call zfcp_fsf_fcp_cmnd without the host_lock and disable the interrupts when acquiring the req_q_lock. According to the patch description in "[PATCH] Eliminate error handler overload of the SCSI serial number", the serial_number is not used, so simply drop the queuecommand wrapper function and run zfcp_scsi_queuecommand without holding the host_lock. Reviewed-by: Swen Schillig Signed-off-by: Christof Schmitt Signed-off-by: James Bottomley diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index f75707a..2eb7dd5 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -2170,12 +2170,13 @@ int zfcp_fsf_fcp_cmnd(struct scsi_cmnd *scsi_cmnd) struct zfcp_adapter *adapter = zfcp_sdev->port->adapter; struct zfcp_qdio *qdio = adapter->qdio; struct fsf_qtcb_bottom_io *io; + unsigned long flags; if (unlikely(!(atomic_read(&zfcp_sdev->status) & ZFCP_STATUS_COMMON_UNBLOCKED))) return -EBUSY; - spin_lock(&qdio->req_q_lock); + spin_lock_irqsave(&qdio->req_q_lock, flags); if (atomic_read(&qdio->req_q_free) <= 0) { atomic_inc(&qdio->req_q_full); goto out; @@ -2239,7 +2240,7 @@ failed_scsi_cmnd: zfcp_fsf_req_free(req); scsi_cmnd->host_scribble = NULL; out: - spin_unlock(&qdio->req_q_lock); + spin_unlock_irqrestore(&qdio->req_q_lock, flags); return retval; } diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index 6bd2dbc..63529ed 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -76,8 +76,8 @@ static void zfcp_scsi_command_fail(struct scsi_cmnd *scpnt, int result) scpnt->scsi_done(scpnt); } -static int zfcp_scsi_queuecommand_lck(struct scsi_cmnd *scpnt, - void (*done) (struct scsi_cmnd *)) +static +int zfcp_scsi_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *scpnt) { struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scpnt->device); struct zfcp_adapter *adapter = zfcp_sdev->port->adapter; @@ -87,7 +87,6 @@ static int zfcp_scsi_queuecommand_lck(struct scsi_cmnd *scpnt, /* reset the status for this request */ scpnt->result = 0; scpnt->host_scribble = NULL; - scpnt->scsi_done = done; scsi_result = fc_remote_port_chkready(rport); if (unlikely(scsi_result)) { @@ -127,8 +126,6 @@ static int zfcp_scsi_queuecommand_lck(struct scsi_cmnd *scpnt, return ret; } -static DEF_SCSI_QCMD(zfcp_scsi_queuecommand) - static int zfcp_scsi_slave_alloc(struct scsi_device *sdev) { struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); -- cgit v0.10.2 From 955256f2c3e25c94ad373c43fbc38d2ac8af2a71 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Fri, 19 Nov 2010 09:41:10 -0500 Subject: Btrfs: fix use after free in O_DIRECT This fixes a bug where we use dip after we have freed it. Instead just use the file_offset that was passed to the function. Thanks, Signed-off-by: Josef Bacik diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 0f34cae..ae6c0d1 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -5934,8 +5934,7 @@ free_ordered: */ if (write) { struct btrfs_ordered_extent *ordered; - ordered = btrfs_lookup_ordered_extent(inode, - dip->logical_offset); + ordered = btrfs_lookup_ordered_extent(inode, file_offset); if (!test_bit(BTRFS_ORDERED_PREALLOC, &ordered->flags) && !test_bit(BTRFS_ORDERED_NOCOW, &ordered->flags)) btrfs_free_reserved_extent(root, ordered->start, -- cgit v0.10.2 From 2b20982e3154266106573beac2a4d4ba57a2789a Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Fri, 3 Dec 2010 13:17:53 -0500 Subject: Btrfs: deal with space cache errors better Currently if the space cache inode generation number doesn't match the generation number in the space cache header we will just fail to load the space cache, but we won't mark the space cache as an error, so we'll keep getting that error each time somebody tries to cache that block group until we actually clear the thing. Fix this by marking the space cache as having an error so we only get the message once. This patch also makes it so that we don't try and setup space cache for a block group that isn't cached, since we won't be able to write it out anyway. None of these problems are actual problems, they are just annoying and sub-optimal. Thanks, Signed-off-by: Josef Bacik diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index ddaf634..8c56f5b 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -2742,6 +2742,7 @@ static int cache_save_setup(struct btrfs_block_group_cache *block_group, struct btrfs_root *root = block_group->fs_info->tree_root; struct inode *inode = NULL; u64 alloc_hint = 0; + int dcs = BTRFS_DC_ERROR; int num_pages = 0; int retries = 0; int ret = 0; @@ -2796,6 +2797,8 @@ again: spin_lock(&block_group->lock); if (block_group->cached != BTRFS_CACHE_FINISHED) { + /* We're not cached, don't bother trying to write stuff out */ + dcs = BTRFS_DC_WRITTEN; spin_unlock(&block_group->lock); goto out_put; } @@ -2822,6 +2825,8 @@ again: ret = btrfs_prealloc_file_range_trans(inode, trans, 0, 0, num_pages, num_pages, num_pages, &alloc_hint); + if (!ret) + dcs = BTRFS_DC_SETUP; btrfs_free_reserved_data_space(inode, num_pages); out_put: iput(inode); @@ -2829,10 +2834,7 @@ out_free: btrfs_release_path(root, path); out: spin_lock(&block_group->lock); - if (ret) - block_group->disk_cache_state = BTRFS_DC_ERROR; - else - block_group->disk_cache_state = BTRFS_DC_SETUP; + block_group->disk_cache_state = dcs; spin_unlock(&block_group->lock); return ret; diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 22ee0dc..60d6842 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -290,7 +290,7 @@ int load_free_space_cache(struct btrfs_fs_info *fs_info, (unsigned long long)BTRFS_I(inode)->generation, (unsigned long long)generation, (unsigned long long)block_group->key.objectid); - goto out; + goto free_cache; } if (!num_entries) @@ -524,6 +524,12 @@ int btrfs_write_out_cache(struct btrfs_root *root, return 0; } + node = rb_first(&block_group->free_space_offset); + if (!node) { + iput(inode); + return 0; + } + last_index = (i_size_read(inode) - 1) >> PAGE_CACHE_SHIFT; filemap_write_and_wait(inode->i_mapping); btrfs_wait_ordered_range(inode, inode->i_size & @@ -543,10 +549,6 @@ int btrfs_write_out_cache(struct btrfs_root *root, */ first_page_offset = (sizeof(u32) * num_checksums) + sizeof(u64); - node = rb_first(&block_group->free_space_offset); - if (!node) - goto out_free; - /* * Lock all pages first so we can lock the extent safely. * -- cgit v0.10.2 From b8399dee478db7939cd0d6fda8ecacddf2facd03 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Wed, 8 Dec 2010 09:15:11 -0500 Subject: Btrfs: do not do fast caching if we are allocating blocks for tree_root Since the fast caching uses normal tree locking, we can possibly deadlock if we get to the caching via a btrfs_search_slot() on the tree_root. So just check to see if the root we are on is the tree root, and just don't do the fast caching. Reported-by: Sage Weil Signed-off-by: Josef Bacik diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 8c56f5b..cec05e1 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -429,6 +429,7 @@ err: static int cache_block_group(struct btrfs_block_group_cache *cache, struct btrfs_trans_handle *trans, + struct btrfs_root *root, int load_cache_only) { struct btrfs_fs_info *fs_info = cache->fs_info; @@ -442,9 +443,12 @@ static int cache_block_group(struct btrfs_block_group_cache *cache, /* * We can't do the read from on-disk cache during a commit since we need - * to have the normal tree locking. + * to have the normal tree locking. Also if we are currently trying to + * allocate blocks for the tree root we can't do the fast caching since + * we likely hold important locks. */ - if (!trans->transaction->in_commit) { + if (!trans->transaction->in_commit && + (root && root != root->fs_info->tree_root)) { spin_lock(&cache->lock); if (cache->cached != BTRFS_CACHE_NO) { spin_unlock(&cache->lock); @@ -4083,7 +4087,7 @@ static int update_block_group(struct btrfs_trans_handle *trans, * space back to the block group, otherwise we will leak space. */ if (!alloc && cache->cached == BTRFS_CACHE_NO) - cache_block_group(cache, trans, 1); + cache_block_group(cache, trans, NULL, 1); byte_in_group = bytenr - cache->key.objectid; WARN_ON(byte_in_group > cache->key.offset); @@ -4937,7 +4941,8 @@ have_block_group: if (unlikely(block_group->cached == BTRFS_CACHE_NO)) { u64 free_percent; - ret = cache_block_group(block_group, trans, 1); + ret = cache_block_group(block_group, trans, + orig_root, 1); if (block_group->cached == BTRFS_CACHE_FINISHED) goto have_block_group; @@ -4961,7 +4966,8 @@ have_block_group: if (loop > LOOP_CACHING_NOWAIT || (loop > LOOP_FIND_IDEAL && atomic_read(&space_info->caching_threads) < 2)) { - ret = cache_block_group(block_group, trans, 0); + ret = cache_block_group(block_group, trans, + orig_root, 0); BUG_ON(ret); } found_uncached_bg = true; @@ -5518,7 +5524,7 @@ int btrfs_alloc_logged_file_extent(struct btrfs_trans_handle *trans, u64 num_bytes = ins->offset; block_group = btrfs_lookup_block_group(root->fs_info, ins->objectid); - cache_block_group(block_group, trans, 0); + cache_block_group(block_group, trans, NULL, 0); caching_ctl = get_caching_control(block_group); if (!caching_ctl) { -- cgit v0.10.2 From 7e1fea731da8c1b5fcf5d8e157befd389b030760 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Wed, 8 Dec 2010 12:22:34 -0500 Subject: Btrfs: fixup return code for btrfs_del_orphan_item If the orphan item doesn't exist, we return 1, which doesn't make any sense to the callers. Instead return -ENOENT if we didn't find the item. Thanks, Signed-off-by: Josef Bacik diff --git a/fs/btrfs/orphan.c b/fs/btrfs/orphan.c index 79cba5f..f8be250 100644 --- a/fs/btrfs/orphan.c +++ b/fs/btrfs/orphan.c @@ -56,8 +56,12 @@ int btrfs_del_orphan_item(struct btrfs_trans_handle *trans, return -ENOMEM; ret = btrfs_search_slot(trans, root, &key, path, -1, 1); - if (ret) + if (ret < 0) goto out; + if (ret) { + ret = -ENOENT; + goto out; + } ret = btrfs_del_item(trans, root, path); -- cgit v0.10.2 From 85727e1f78bd8392a0657ad6a4ff85fef1cc4a6d Mon Sep 17 00:00:00 2001 From: Mike Hernandez Date: Tue, 23 Nov 2010 16:52:46 -0800 Subject: [SCSI] qla2xxx: Populate Command Type 6 LUN field properly. Use the host_to_fcp_swap call to correctly populate the LUN field in the Command Type 6 path. This field is used during LUN reset cleanup and must match the field used in the FCP command. Cc: stable@kernel.org Signed-off-by: Mike Hernandez Signed-off-by: Madhuranath Iyengar Signed-off-by: James Bottomley diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index 5f94430..4c1ba62 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -1061,6 +1061,7 @@ qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, fcp_cmnd->additional_cdb_len |= 2; int_to_scsilun(sp->cmd->device->lun, &fcp_cmnd->lun); + host_to_fcp_swap((uint8_t *)&fcp_cmnd->lun, sizeof(fcp_cmnd->lun)); memcpy(fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(fcp_cmnd_len); cmd_pkt->fcp_cmnd_dseg_address[0] = cpu_to_le32( diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c index 8d9edfb..ae2acac 100644 --- a/drivers/scsi/qla2xxx/qla_nx.c +++ b/drivers/scsi/qla2xxx/qla_nx.c @@ -2749,6 +2749,7 @@ sufficient_dsds: goto queuing_error_fcp_cmnd; int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun); + host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); /* build FCP_CMND IU */ memset(ctx->fcp_cmnd, 0, sizeof(struct fcp_cmnd)); -- cgit v0.10.2 From 7992abfc8b851456f2dfac3229ecb3a5e5637df0 Mon Sep 17 00:00:00 2001 From: Mike Hernandez Date: Tue, 23 Nov 2010 16:52:47 -0800 Subject: [SCSI] qla2xxx: Change MSI initialization from using incorrect request_irq parameter. IRQF_SHARED flag should not be set when calling request_irq for MSI since this interrupt mechanism cannot be shared like standard INTx. Signed-off-by: Mike Hernandez Signed-off-by: Madhuranath Iyengar Signed-off-by: James Bottomley diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 3a22eff..9ce539d 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -2409,7 +2409,6 @@ struct qla_hw_data { uint32_t enable_target_reset :1; uint32_t enable_lip_full_login :1; uint32_t enable_led_scheme :1; - uint32_t inta_enabled :1; uint32_t msi_enabled :1; uint32_t msix_enabled :1; uint32_t disable_serdes :1; diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 1f06ddd..7f77898 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -2491,14 +2491,15 @@ skip_msix: skip_msi: ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler, - IRQF_SHARED, QLA2XXX_DRIVER_NAME, rsp); + ha->flags.msi_enabled ? 0 : IRQF_SHARED, + QLA2XXX_DRIVER_NAME, rsp); if (ret) { qla_printk(KERN_WARNING, ha, "Failed to reserve interrupt %d already in use.\n", ha->pdev->irq); goto fail; } - ha->flags.inta_enabled = 1; + clear_risc_ints: /* -- cgit v0.10.2 From 087c621e22f49c326cdc65d98c6fc0737ac13533 Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Tue, 23 Nov 2010 16:52:48 -0800 Subject: [SCSI] qla2xxx: Correct issue where NPIV-config data was not being allocated for 82xx parts. This would cause a panic while reading the NPIV-config data. Cc: stable@kernel.org Signed-off-by: Andrew Vasquez Signed-off-by: Madhuranath Iyengar Signed-off-by: James Bottomley diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 1644eab..b873156 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -2064,6 +2064,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) ha->init_cb_size = sizeof(struct mid_init_cb_81xx); ha->gid_list_info_size = 8; ha->optrom_size = OPTROM_SIZE_82XX; + ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX; ha->isp_ops = &qla82xx_isp_ops; ha->flash_conf_off = FARX_ACCESS_FLASH_CONF; ha->flash_data_off = FARX_ACCESS_FLASH_DATA; -- cgit v0.10.2 From 69abf61ea1005bc362b678639a4ae219e23829f3 Mon Sep 17 00:00:00 2001 From: Saurav Kashyap Date: Tue, 23 Nov 2010 16:52:49 -0800 Subject: [SCSI] qla2xxx: Properly set the return value in qla2xxx_eh_abort function. A return value is not set for the successful case and it has a garbage value. This fix will set the default value to SUCCESS and in case of any failures it is changed. Signed-off-by: Saurav Kashyap Signed-off-by: Madhuranath Iyengar Signed-off-by: James Bottomley diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index b873156..2c0876c 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -829,7 +829,7 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd) { scsi_qla_host_t *vha = shost_priv(cmd->device->host); srb_t *sp; - int ret; + int ret = SUCCESS; unsigned int id, lun; unsigned long flags; int wait = 0; -- cgit v0.10.2 From 13d38d9df26b5b9a5ad5f9fbc065078bc42a8748 Mon Sep 17 00:00:00 2001 From: Madhuranath Iyengar Date: Tue, 23 Nov 2010 16:52:50 -0800 Subject: [SCSI] qla2xxx: Update version number to 8.03.05-k0. Signed-off-by: Madhuranath Iyengar Signed-off-by: James Bottomley diff --git a/drivers/scsi/qla2xxx/qla_version.h b/drivers/scsi/qla2xxx/qla_version.h index 8edbccb..cf0075a 100644 --- a/drivers/scsi/qla2xxx/qla_version.h +++ b/drivers/scsi/qla2xxx/qla_version.h @@ -7,9 +7,9 @@ /* * Driver version */ -#define QLA2XXX_VERSION "8.03.04-k0" +#define QLA2XXX_VERSION "8.03.05-k0" #define QLA_DRIVER_MAJOR_VER 8 #define QLA_DRIVER_MINOR_VER 3 -#define QLA_DRIVER_PATCH_VER 4 +#define QLA_DRIVER_PATCH_VER 5 #define QLA_DRIVER_BETA_VER 0 -- cgit v0.10.2 From 3151dbb04ad5a5bd6358371c0bfb457216d00205 Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Wed, 8 Dec 2010 10:40:45 +0800 Subject: ACPI ac: update AC status upon sysfs query http://marc.info/?l=linux-acpi&m=128855015826728&w=2 https://bugzilla.kernel.org/show_bug.cgi?id=21722 Tested_by: Seblu Signed-off-by: Zhang Rui Signed-off-by: Len Brown diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index ba9afea..25d3aae 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -100,24 +100,7 @@ static const struct file_operations acpi_ac_fops = { .release = single_release, }; #endif -static int get_ac_property(struct power_supply *psy, - enum power_supply_property psp, - union power_supply_propval *val) -{ - struct acpi_ac *ac = to_acpi_ac(psy); - switch (psp) { - case POWER_SUPPLY_PROP_ONLINE: - val->intval = ac->state; - break; - default: - return -EINVAL; - } - return 0; -} -static enum power_supply_property ac_props[] = { - POWER_SUPPLY_PROP_ONLINE, -}; /* -------------------------------------------------------------------------- AC Adapter Management -------------------------------------------------------------------------- */ @@ -140,6 +123,35 @@ static int acpi_ac_get_state(struct acpi_ac *ac) return 0; } +/* -------------------------------------------------------------------------- + sysfs I/F + -------------------------------------------------------------------------- */ +static int get_ac_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct acpi_ac *ac = to_acpi_ac(psy); + + if (!ac) + return -ENODEV; + + if (acpi_ac_get_state(ac)) + return -ENODEV; + + switch (psp) { + case POWER_SUPPLY_PROP_ONLINE: + val->intval = ac->state; + break; + default: + return -EINVAL; + } + return 0; +} + +static enum power_supply_property ac_props[] = { + POWER_SUPPLY_PROP_ONLINE, +}; + #ifdef CONFIG_ACPI_PROCFS_POWER /* -------------------------------------------------------------------------- FS Interface (/proc) -- cgit v0.10.2 From 3138b32d5e0998ba3cbd1c74bdc1887d74c5279b Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Wed, 8 Dec 2010 10:40:49 +0800 Subject: ACPI battery: update status upon sysfs query Sometimes the Battery driver doesn't get notifications when it's plugged/unplugged. And this results in the incorrect Battery status reported by the power supply sysfs I/F. Update Battery status first when querying from sysfs. http://marc.info/?l=linux-acpi&m=128855015826728&w=2 Tested_by: Seblu Signed-off-by: Zhang Rui Signed-off-by: Len Brown diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 95649d3..9fb9d5a 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -130,6 +130,8 @@ struct acpi_battery { unsigned long flags; }; +static int acpi_battery_update(struct acpi_battery *battery); + #define to_acpi_battery(x) container_of(x, struct acpi_battery, bat); inline int acpi_battery_present(struct acpi_battery *battery) @@ -184,6 +186,9 @@ static int acpi_battery_get_property(struct power_supply *psy, int ret = 0; struct acpi_battery *battery = to_acpi_battery(psy); + if (acpi_battery_update(battery)) + return -ENODEV; + if (acpi_battery_present(battery)) { /* run battery update only if it is present */ acpi_battery_get_state(battery); -- cgit v0.10.2 From 7c03b87048f2467087ae7e51392e5fb57ea8f58b Mon Sep 17 00:00:00 2001 From: Mike Miller Date: Wed, 1 Dec 2010 11:16:07 -0600 Subject: [SCSI] hpsa: fix redefinition of PCI_DEVICE_ID_CISSF PCI_DEVICE_ID_CISSF is defined as 323b in pci_ids.h but redefined as 3fff in hpsa.c. The ID of 3fff will _never_ ship as a standalone controller. It is intended only as part a complete storage solution. As such, this patch removes the redefinition and the StorageWorks P1210m from the product table. It also removes a duplicate line for the "unknown" controller support. Signed-off-by: James Bottomley diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index b2fb2b2..a6dea08 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -90,11 +90,7 @@ static const struct pci_device_id hpsa_pci_device_id[] = { {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3252}, {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3253}, {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3254}, -#define PCI_DEVICE_ID_HP_CISSF 0x333f - {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x333F}, - {PCI_VENDOR_ID_HP, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, - PCI_CLASS_STORAGE_RAID << 8, 0xffff << 8, 0}, - {PCI_VENDOR_ID_COMPAQ, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, + {PCI_VENDOR_ID_HP, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_RAID << 8, 0xffff << 8, 0}, {0,} }; @@ -113,8 +109,6 @@ static struct board_type products[] = { {0x3249103C, "Smart Array P812", &SA5_access}, {0x324a103C, "Smart Array P712m", &SA5_access}, {0x324b103C, "Smart Array P711m", &SA5_access}, - {0x3233103C, "StorageWorks P1210m", &SA5_access}, - {0x333F103C, "StorageWorks P1210m", &SA5_access}, {0x3250103C, "Smart Array", &SA5_access}, {0x3250113C, "Smart Array", &SA5_access}, {0x3250123C, "Smart Array", &SA5_access}, -- cgit v0.10.2 From a5dc4f898c2a0f66e2cefada6c687db82ba2fcbc Mon Sep 17 00:00:00 2001 From: Alexey Starikovskiy Date: Thu, 9 Dec 2010 17:07:54 -0500 Subject: ACPI: EC: Add another dmi match entry for MSI hardware http://bugzilla.kernel.org/show_bug.cgi?id=15418 Signed-off-by: Alexey Starikovskiy cc: stable@kernel.org Signed-off-by: Len Brown diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 372ff80..302b31e 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -934,6 +934,9 @@ static struct dmi_system_id __initdata ec_dmi_table[] = { ec_flag_msi, "MSI hardware", { DMI_MATCH(DMI_CHASSIS_VENDOR, "MICRO-Star")}, NULL}, { + ec_flag_msi, "MSI hardware", { + DMI_MATCH(DMI_CHASSIS_VENDOR, "MICRO-STAR")}, NULL}, + { ec_validate_ecdt, "ASUS hardware", { DMI_MATCH(DMI_BIOS_VENDOR, "ASUS") }, NULL}, {}, -- cgit v0.10.2 From 05340d4ab2ec2b6b4962c1c41c6ea8fb550f947b Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 7 Dec 2010 10:16:41 +0000 Subject: xfs: log timestamp changes to the source inode in rename Now that we don't mark VFS inodes dirty anymore for internal timestamp changes, but rely on the transaction subsystem to push them out, we need to explicitly log the source inode in rename after updating it's timestamps to make sure the changes actually get forced out by sync/fsync or an AIL push. We already account for the fourth inode in the log reservation, as a rename of directories needs to update the nlink field, so just adding the xfs_trans_log_inode call is enough. This fixes the xfsqa 065 regression introduced by: "xfs: don't use vfs writeback for pure metadata modifications" Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner Signed-off-by: Alex Elder diff --git a/fs/xfs/xfs_rename.c b/fs/xfs/xfs_rename.c index d2af0a8..77a5989 100644 --- a/fs/xfs/xfs_rename.c +++ b/fs/xfs/xfs_rename.c @@ -297,6 +297,7 @@ xfs_rename( * it and some incremental backup programs won't work without it. */ xfs_trans_ichgtime(tp, src_ip, XFS_ICHGTIME_CHG); + xfs_trans_log_inode(tp, src_ip, XFS_ILOG_CORE); /* * Adjust the link count on src_dp. This is necessary when -- cgit v0.10.2 From 28dd31983f6c3a4d89369ff8f0c93de2cda868db Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Wed, 8 Dec 2010 01:02:12 +0000 Subject: OMAP1: SRAM: fix size for OMAP1611 SoCs Kernel was failing to boot on omap1611 based OSK boards due to mis-configured SRAM size. Existing code was using a hard-coded value for 250k, which was then rounded down by PAGE_SIZE. Increasing this to 256k allows kernel to boot on omap1611 SoCs. Problem reported by and initial fix suggested by Tim Bird. Thanks to Tony Lindgren for helping diagnose the problem to being specific to OMAP1611 and not affecting OMAP1610/OMAP1623. Reported-by: Tim Bird Signed-off-by: Kevin Hilman Signed-off-by: Tony Lindgren diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c index e2c8eeb..74dac41 100644 --- a/arch/arm/plat-omap/sram.c +++ b/arch/arm/plat-omap/sram.c @@ -166,7 +166,7 @@ static void __init omap_detect_sram(void) cpu_is_omap1710()) omap_sram_size = 0x4000; /* 16K */ else if (cpu_is_omap1611()) - omap_sram_size = 0x3e800; /* 250K */ + omap_sram_size = SZ_256K; else { printk(KERN_ERR "Could not detect SRAM size\n"); omap_sram_size = 0x4000; -- cgit v0.10.2 From e83df17f178360a8e7874441bca04a710c869e42 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Wed, 8 Dec 2010 22:40:40 +0000 Subject: OMAP2+: PM/serial: fix console semaphore acquire during suspend commit 0d8e2d0dad98a693bad88aea6876ac8b94ad95c6 (OMAP2+: PM/serial: hold console semaphore while OMAP UARTs are disabled) added use of the console semaphore to protect UARTs from being accessed after disabled during idle, but this causes problems in suspend. During suspend, the console semaphore is acquired by the console suspend method (console_suspend()) so the try_acquire_console_sem() will always fail and suspend will be aborted. To fix, introduce a check so the console semaphore is only attempted during idle, and not during suspend. Also use the same check so that the console semaphore is not prematurely released during resume. Thanks to Paul Walmsley for suggesting adding the same check during resume. Cc: Paul Walmsley Tested-by: Jean Pihet Tested-by: Paul Walmsley Signed-off-by: Kevin Hilman Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c index c85923e..aaeea49 100644 --- a/arch/arm/mach-omap2/pm24xx.c +++ b/arch/arm/mach-omap2/pm24xx.c @@ -53,6 +53,19 @@ #include #include +#ifdef CONFIG_SUSPEND +static suspend_state_t suspend_state = PM_SUSPEND_ON; +static inline bool is_suspending(void) +{ + return (suspend_state != PM_SUSPEND_ON); +} +#else +static inline bool is_suspending(void) +{ + return false; +} +#endif + static void (*omap2_sram_idle)(void); static void (*omap2_sram_suspend)(u32 dllctrl, void __iomem *sdrc_dlla_ctrl, void __iomem *sdrc_power); @@ -120,8 +133,9 @@ static void omap2_enter_full_retention(void) goto no_sleep; /* Block console output in case it is on one of the OMAP UARTs */ - if (try_acquire_console_sem()) - goto no_sleep; + if (!is_suspending()) + if (try_acquire_console_sem()) + goto no_sleep; omap_uart_prepare_idle(0); omap_uart_prepare_idle(1); @@ -136,7 +150,8 @@ static void omap2_enter_full_retention(void) omap_uart_resume_idle(1); omap_uart_resume_idle(0); - release_console_sem(); + if (!is_suspending()) + release_console_sem(); no_sleep: if (omap2_pm_debug) { @@ -284,6 +299,12 @@ out: local_irq_enable(); } +static int omap2_pm_begin(suspend_state_t state) +{ + suspend_state = state; + return 0; +} + static int omap2_pm_prepare(void) { /* We cannot sleep in idle until we have resumed */ @@ -333,10 +354,17 @@ static void omap2_pm_finish(void) enable_hlt(); } +static void omap2_pm_end(void) +{ + suspend_state = PM_SUSPEND_ON; +} + static struct platform_suspend_ops omap_pm_ops = { + .begin = omap2_pm_begin, .prepare = omap2_pm_prepare, .enter = omap2_pm_enter, .finish = omap2_pm_finish, + .end = omap2_pm_end, .valid = suspend_valid_only_mem, }; diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index 0ec8a04..648b8c5 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -50,6 +50,19 @@ #include "sdrc.h" #include "control.h" +#ifdef CONFIG_SUSPEND +static suspend_state_t suspend_state = PM_SUSPEND_ON; +static inline bool is_suspending(void) +{ + return (suspend_state != PM_SUSPEND_ON); +} +#else +static inline bool is_suspending(void) +{ + return false; +} +#endif + /* Scratchpad offsets */ #define OMAP343X_TABLE_ADDRESS_OFFSET 0xc4 #define OMAP343X_TABLE_VALUE_OFFSET 0xc0 @@ -387,10 +400,11 @@ void omap_sram_idle(void) } /* Block console output in case it is on one of the OMAP UARTs */ - if (per_next_state < PWRDM_POWER_ON || - core_next_state < PWRDM_POWER_ON) - if (try_acquire_console_sem()) - goto console_still_active; + if (!is_suspending()) + if (per_next_state < PWRDM_POWER_ON || + core_next_state < PWRDM_POWER_ON) + if (try_acquire_console_sem()) + goto console_still_active; /* PER */ if (per_next_state < PWRDM_POWER_ON) { @@ -470,7 +484,8 @@ void omap_sram_idle(void) omap_uart_resume_idle(3); } - release_console_sem(); + if (!is_suspending()) + release_console_sem(); console_still_active: /* Disable IO-PAD and IO-CHAIN wakeup */ @@ -514,8 +529,6 @@ out: } #ifdef CONFIG_SUSPEND -static suspend_state_t suspend_state; - static int omap3_pm_prepare(void) { disable_hlt(); -- cgit v0.10.2 From fb4fa76a1fa59340154c42d998d700e1f8bf21e0 Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Mon, 6 Dec 2010 09:05:50 +0000 Subject: net: Convert netpoll blocking api in bonding driver to be a counter A while back I made some changes to enable netpoll in the bonding driver. Among them was a per-cpu flag that indicated we were in a path that held locks which could cause the netpoll path to block in during tx, and as such the tx path should queue the frame for later use. This appears to have given rise to a regression. If one of those paths on which we hold the per-cpu flag yields the cpu, its possible for us to come back on a different cpu, leading to us clearing a different flag than we set. This results in odd netpoll drops, and BUG backtraces appearing in the log, as we check to make sure that we only clear set bits, and only set clear bits. I had though briefly about changing the offending paths so that they wouldn't sleep, but looking at my origional work more closely, it doesn't appear that a per-cpu flag is warranted. We alrady gate the checking of this flag on IFF_IN_NETPOLL, so we don't hit this in the normal tx case anyway. And practically speaking, the normal use case for netpoll is to only have one client anyway, so we're not going to erroneously queue netpoll frames when its actually safe to do so. As such, lets just convert that per-cpu flag to an atomic counter. It fixes the rescheduling bugs, is equivalent from a performance perspective and actually eliminates some code in the process. Tested by the reporter and myself, successfully Reported-by: Liang Zheng CC: Jay Vosburgh CC: Andy Gospodarek CC: David S. Miller Signed-off-by: Neil Horman Signed-off-by: David S. Miller diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 2fee00a..d0ea760 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -171,7 +171,7 @@ MODULE_PARM_DESC(resend_igmp, "Number of IGMP membership reports to send on link /*----------------------------- Global variables ----------------------------*/ #ifdef CONFIG_NET_POLL_CONTROLLER -cpumask_var_t netpoll_block_tx; +atomic_t netpoll_block_tx = ATOMIC_INIT(0); #endif static const char * const version = @@ -5299,13 +5299,6 @@ static int __init bonding_init(void) if (res) goto out; -#ifdef CONFIG_NET_POLL_CONTROLLER - if (!alloc_cpumask_var(&netpoll_block_tx, GFP_KERNEL)) { - res = -ENOMEM; - goto out; - } -#endif - res = register_pernet_subsys(&bond_net_ops); if (res) goto out; @@ -5334,9 +5327,6 @@ err: rtnl_link_unregister(&bond_link_ops); err_link: unregister_pernet_subsys(&bond_net_ops); -#ifdef CONFIG_NET_POLL_CONTROLLER - free_cpumask_var(netpoll_block_tx); -#endif goto out; } @@ -5353,7 +5343,10 @@ static void __exit bonding_exit(void) unregister_pernet_subsys(&bond_net_ops); #ifdef CONFIG_NET_POLL_CONTROLLER - free_cpumask_var(netpoll_block_tx); + /* + * Make sure we don't have an imbalance on our netpoll blocking + */ + WARN_ON(atomic_read(&netpoll_block_tx)); #endif } diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h index 4eedb12..c2f0813 100644 --- a/drivers/net/bonding/bonding.h +++ b/drivers/net/bonding/bonding.h @@ -119,26 +119,22 @@ #ifdef CONFIG_NET_POLL_CONTROLLER -extern cpumask_var_t netpoll_block_tx; +extern atomic_t netpoll_block_tx; static inline void block_netpoll_tx(void) { - preempt_disable(); - BUG_ON(cpumask_test_and_set_cpu(smp_processor_id(), - netpoll_block_tx)); + atomic_inc(&netpoll_block_tx); } static inline void unblock_netpoll_tx(void) { - BUG_ON(!cpumask_test_and_clear_cpu(smp_processor_id(), - netpoll_block_tx)); - preempt_enable(); + atomic_dec(&netpoll_block_tx); } static inline int is_netpoll_tx_blocked(struct net_device *dev) { if (unlikely(dev->priv_flags & IFF_IN_NETPOLL)) - return cpumask_test_cpu(smp_processor_id(), netpoll_block_tx); + return atomic_read(&netpoll_block_tx); return 0; } #else -- cgit v0.10.2 From 78347c8c6b2ddf20535bc1b18d749a3bbdea2a60 Mon Sep 17 00:00:00 2001 From: Thomas Egerer Date: Mon, 6 Dec 2010 23:28:56 +0000 Subject: xfrm: Fix xfrm_state_migrate leak xfrm_state_migrate calls kfree instead of xfrm_state_put to free a failed state. According to git commit 553f9118 this can cause memory leaks. Signed-off-by: Thomas Egerer Signed-off-by: Steffen Klassert Acked-by: Herbert Xu Signed-off-by: David S. Miller diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index eb96ce5..220ebc0 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -1268,7 +1268,7 @@ struct xfrm_state * xfrm_state_migrate(struct xfrm_state *x, return xc; error: - kfree(xc); + xfrm_state_put(xc); return NULL; } EXPORT_SYMBOL(xfrm_state_migrate); -- cgit v0.10.2 From 6934d33556b366d22392a415ca09d720fed6a442 Mon Sep 17 00:00:00 2001 From: Thomas Bogendoerfer Date: Tue, 7 Dec 2010 22:21:52 +0000 Subject: hso: IP checksuming doesn't work on GE0301 option cards There is definitly a problem, that some option cards send up broken IP pakets leading to corrupted IP packets. These corruptions aren't detected, because the driver claims that the packets are already checksummed. This change removes the CHECKSUM_UNNECESSARY option and let IP detect broken data. Signed-off-by: Thomas Bogendoerfer Signed-off-by: David S. Miller diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c index 62e9e8d..812edf8 100644 --- a/drivers/net/usb/hso.c +++ b/drivers/net/usb/hso.c @@ -958,10 +958,6 @@ static void packetizeRx(struct hso_net *odev, unsigned char *ip_pkt, /* Packet is complete. Inject into stack. */ /* We have IP packet here */ odev->skb_rx_buf->protocol = cpu_to_be16(ETH_P_IP); - /* don't check it */ - odev->skb_rx_buf->ip_summed = - CHECKSUM_UNNECESSARY; - skb_reset_mac_header(odev->skb_rx_buf); /* Ship it off to the kernel */ -- cgit v0.10.2 From 5b362ac3799ff4225c40935500f520cad4d7ed66 Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Fri, 10 Dec 2010 12:31:14 -0500 Subject: NFS: Fix panic after nfs_umount() After a few unsuccessful NFS mount attempts in which the client and server cannot agree on an authentication flavor both support, the client panics. nfs_umount() is invoked in the kernel in this case. Turns out nfs_umount()'s UMNT RPC invocation causes the RPC client to write off the end of the rpc_clnt's iostat array. This is because the mount client's nrprocs field is initialized with the count of defined procedures (two: MNT and UMNT), rather than the size of the client's proc array (four). The fix is to use the same initialization technique used by most other upper layer clients in the kernel. Introduced by commit 0b524123, which failed to update nrprocs when support was added for UMNT in the kernel. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=24302 BugLink: http://bugs.launchpad.net/bugs/683938 Reported-by: Stefan Bader Tested-by: Stefan Bader Cc: stable@kernel.org # >= 2.6.32 Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust diff --git a/fs/nfs/mount_clnt.c b/fs/nfs/mount_clnt.c index eceafe7..4f981f1 100644 --- a/fs/nfs/mount_clnt.c +++ b/fs/nfs/mount_clnt.c @@ -505,13 +505,13 @@ static struct rpc_procinfo mnt3_procedures[] = { static struct rpc_version mnt_version1 = { .number = 1, - .nrprocs = 2, + .nrprocs = ARRAY_SIZE(mnt_procedures), .procs = mnt_procedures, }; static struct rpc_version mnt_version3 = { .number = 3, - .nrprocs = 2, + .nrprocs = ARRAY_SIZE(mnt3_procedures), .procs = mnt3_procedures, }; -- cgit v0.10.2 From e4fbce740f078bbc925ba5c86648d9c883968479 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 8 Dec 2010 15:32:14 +0000 Subject: r8169: Fix runtime power management I noticed that one of the post-2.6.36 patches broke runtime PM of the r8169 on my MSI Wind test machine in such a way that the link was not brought up after reconnecting the network cable. In the process of debugging the issue I realized that we only should invoke the runtime PM functions in rtl8169_check_link_status() when link change is reported and if we do so, the problem goes away. Moreover, this allows rtl8169_runtime_idle() to be simplified quite a bit. Signed-off-by: Rafael J. Wysocki Acked-by: Francois Romieu Signed-off-by: David S. Miller diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c index 7d33ef4..53b13de 100644 --- a/drivers/net/r8169.c +++ b/drivers/net/r8169.c @@ -744,26 +744,36 @@ static void rtl8169_xmii_reset_enable(void __iomem *ioaddr) mdio_write(ioaddr, MII_BMCR, val & 0xffff); } -static void rtl8169_check_link_status(struct net_device *dev, +static void __rtl8169_check_link_status(struct net_device *dev, struct rtl8169_private *tp, - void __iomem *ioaddr) + void __iomem *ioaddr, + bool pm) { unsigned long flags; spin_lock_irqsave(&tp->lock, flags); if (tp->link_ok(ioaddr)) { /* This is to cancel a scheduled suspend if there's one. */ - pm_request_resume(&tp->pci_dev->dev); + if (pm) + pm_request_resume(&tp->pci_dev->dev); netif_carrier_on(dev); netif_info(tp, ifup, dev, "link up\n"); } else { netif_carrier_off(dev); netif_info(tp, ifdown, dev, "link down\n"); - pm_schedule_suspend(&tp->pci_dev->dev, 100); + if (pm) + pm_schedule_suspend(&tp->pci_dev->dev, 100); } spin_unlock_irqrestore(&tp->lock, flags); } +static void rtl8169_check_link_status(struct net_device *dev, + struct rtl8169_private *tp, + void __iomem *ioaddr) +{ + __rtl8169_check_link_status(dev, tp, ioaddr, false); +} + #define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST) static u32 __rtl8169_get_wol(struct rtl8169_private *tp) @@ -4600,7 +4610,7 @@ static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance) } if (status & LinkChg) - rtl8169_check_link_status(dev, tp, ioaddr); + __rtl8169_check_link_status(dev, tp, ioaddr, true); /* We need to see the lastest version of tp->intr_mask to * avoid ignoring an MSI interrupt and having to wait for @@ -4890,11 +4900,7 @@ static int rtl8169_runtime_idle(struct device *device) struct net_device *dev = pci_get_drvdata(pdev); struct rtl8169_private *tp = netdev_priv(dev); - if (!tp->TxDescArray) - return 0; - - rtl8169_check_link_status(dev, tp, tp->mmio_addr); - return -EBUSY; + return tp->TxDescArray ? -EBUSY : 0; } static const struct dev_pm_ops rtl8169_pm_ops = { -- cgit v0.10.2 From c1249c0aae4c93a753c70496ab2e9a51430a6f02 Mon Sep 17 00:00:00 2001 From: Martin Lucina Date: Fri, 10 Dec 2010 00:04:05 +0000 Subject: net: Document the kernel_recvmsg() function Signed-off-by: Martin Lucina Signed-off-by: David S. Miller diff --git a/net/socket.c b/net/socket.c index 3ca2fd9..088fb3f 100644 --- a/net/socket.c +++ b/net/socket.c @@ -732,6 +732,21 @@ static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg, return ret; } +/** + * kernel_recvmsg - Receive a message from a socket (kernel space) + * @sock: The socket to receive the message from + * @msg: Received message + * @vec: Input s/g array for message data + * @num: Size of input s/g array + * @size: Number of bytes to read + * @flags: Message flags (MSG_DONTWAIT, etc...) + * + * On return the msg structure contains the scatter/gather array passed in the + * vec argument. The array is modified so that it consists of the unfilled + * portion of the original array. + * + * The returned value is the total number of bytes received, or an error. + */ int kernel_recvmsg(struct socket *sock, struct msghdr *msg, struct kvec *vec, size_t num, size_t size, int flags) { -- cgit v0.10.2 From 3700c3c2934467d53d443682f020cc5c1f75f1f2 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Fri, 10 Dec 2010 12:27:49 -0800 Subject: connector: add module alias Since connector can be built as a module and uses netlink socket to communicate. The module should have an alias to autoload when socket of NETLINK_CONNECTOR type is requested. Signed-off-by: Stephen Hemminger Acked-by: Evgeniy Polyakov Signed-off-by: David S. Miller diff --git a/drivers/connector/connector.c b/drivers/connector/connector.c index e16c3fa..05117f1 100644 --- a/drivers/connector/connector.c +++ b/drivers/connector/connector.c @@ -36,6 +36,7 @@ MODULE_LICENSE("GPL"); MODULE_AUTHOR("Evgeniy Polyakov "); MODULE_DESCRIPTION("Generic userspace <-> kernelspace connector."); +MODULE_ALIAS_NET_PF_PROTO(PF_NETLINK, NETLINK_CONNECTOR); static struct cn_dev cdev; -- cgit v0.10.2 From 5f75a1042feca37c0a436ba42a4b1f7f75c35778 Mon Sep 17 00:00:00 2001 From: Nicolas Dichtel Date: Tue, 7 Dec 2010 23:38:31 +0000 Subject: ipv6: fix nl group when advertising a new link New idev are advertised with NL group RTNLGRP_IPV6_IFADDR, but should use RTNLGRP_IPV6_IFINFO. Bug was introduced by commit 8d7a76c9. Signed-off-by: Wang Xuefu Signed-off-by: Nicolas Dichtel Acked-by: Thomas Graf Signed-off-by: David S. Miller diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 23cc8e1..93b7a93 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -4021,11 +4021,11 @@ void inet6_ifinfo_notify(int event, struct inet6_dev *idev) kfree_skb(skb); goto errout; } - rtnl_notify(skb, net, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC); + rtnl_notify(skb, net, 0, RTNLGRP_IPV6_IFINFO, NULL, GFP_ATOMIC); return; errout: if (err < 0) - rtnl_set_sk_err(net, RTNLGRP_IPV6_IFADDR, err); + rtnl_set_sk_err(net, RTNLGRP_IPV6_IFINFO, err); } static inline size_t inet6_prefix_nlmsg_size(void) -- cgit v0.10.2 From 84cd948cb11041f205242de457e680b9bb872a36 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Wed, 8 Dec 2010 12:24:01 -0500 Subject: Btrfs: do not BUG if we fail to remove the orphan item for dead snapshots Not being able to delete an orphan item isn't a horrible thing. The worst that happens is the next time around we try and do the orphan cleanup and we can't find the referenced object and just delete the item and move on. Signed-off-by: Josef Bacik diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index cec05e1..41133b0 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -6309,9 +6309,13 @@ int btrfs_drop_snapshot(struct btrfs_root *root, NULL, NULL); BUG_ON(ret < 0); if (ret > 0) { - ret = btrfs_del_orphan_item(trans, tree_root, - root->root_key.objectid); - BUG_ON(ret); + /* if we fail to delete the orphan item this time + * around, it'll get picked up the next time. + * + * The most common failure here is just -ENOENT. + */ + btrfs_del_orphan_item(trans, tree_root, + root->root_key.objectid); } } -- cgit v0.10.2 From 24ae63656a165c870c0d69fcc8aac1dc35e25e34 Mon Sep 17 00:00:00 2001 From: "Yan, Zheng" Date: Mon, 6 Dec 2010 07:02:36 +0000 Subject: Btrfs: Fix page leak in compressed writeback path "start + num_bytes >= actual_end" can happen when compressed page writeback races with file truncation. In that case we need unlock and release pages past the end of file. Signed-off-by: Yan, Zheng Signed-off-by: Chris Mason diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index ae6c0d1..4875d69 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -495,7 +495,7 @@ again: add_async_extent(async_cow, start, num_bytes, total_compressed, pages, nr_pages_ret); - if (start + num_bytes < end && start + num_bytes < actual_end) { + if (start + num_bytes < end) { start += num_bytes; pages = NULL; cond_resched(); -- cgit v0.10.2 From 75eaa0e22c055e38982df267d0f84cc510ba38bf Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Fri, 10 Dec 2010 00:36:28 +0000 Subject: Btrfs: fix sync subvol/snapshot creation We were incorrectly taking the async path even for the sync ioctls by passing in &transid unconditionally. There's ample room for further cleanup here, but this keeps the fix simple. Signed-off-by: Sage Weil Reviewed-by: Li Zefan Signed-off-by: Chris Mason diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index f1c9bb4..7cc2e8e 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -964,6 +964,15 @@ static noinline int btrfs_ioctl_snap_create(struct file *file, name = async_vol_args->name; fd = async_vol_args->fd; async_vol_args->name[BTRFS_SNAPSHOT_NAME_MAX] = '\0'; + + ret = btrfs_ioctl_snap_create_transid(file, name, fd, + subvol, &transid); + + if (ret == 0 && + copy_to_user(arg + + offsetof(struct btrfs_ioctl_async_vol_args, + transid), &transid, sizeof(transid))) + ret = -EFAULT; } else { vol_args = memdup_user(arg, sizeof(*vol_args)); if (IS_ERR(vol_args)) @@ -971,16 +980,9 @@ static noinline int btrfs_ioctl_snap_create(struct file *file, name = vol_args->name; fd = vol_args->fd; vol_args->name[BTRFS_PATH_NAME_MAX] = '\0'; - } - ret = btrfs_ioctl_snap_create_transid(file, name, fd, - subvol, &transid); - - if (!ret && async) { - if (copy_to_user(arg + - offsetof(struct btrfs_ioctl_async_vol_args, - transid), &transid, sizeof(transid))) - return -EFAULT; + ret = btrfs_ioctl_snap_create_transid(file, name, fd, + subvol, NULL); } kfree(vol_args); -- cgit v0.10.2 From f106e82caaa0d943e47cacc184f5b40d538e0044 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Tue, 7 Dec 2010 01:51:26 +0000 Subject: Btrfs: Fix a crash when mounting a subvolume We should drop dentry before deactivating the superblock, otherwise we can hit this bug: BUG: Dentry f349a690{i=100,n=/} still in use (1) [unmount of btrfs loop1] ... Steps to reproduce the bug: # mount /dev/loop1 /mnt # mkdir save # btrfs subvolume snapshot /mnt save/snap1 # umount /mnt # mount -o subvol=save/snap1 /dev/loop1 /mnt (crash) Reported-by: Michael Niederle Signed-off-by: Li Zefan Signed-off-by: Chris Mason diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 47bf67c..61bd79a 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -685,9 +685,9 @@ static int btrfs_get_sb(struct file_system_type *fs_type, int flags, mutex_unlock(&root->d_inode->i_mutex); if (IS_ERR(new_root)) { + dput(root); deactivate_locked_super(s); error = PTR_ERR(new_root); - dput(root); goto error_free_subvol_name; } if (!new_root->d_inode) { -- cgit v0.10.2 From 914ee295af418e936ec20a08c1663eaabe4cd07a Mon Sep 17 00:00:00 2001 From: Xin Zhong Date: Thu, 9 Dec 2010 09:30:14 +0000 Subject: Btrfs: pwrite blocked when writing from the mmaped buffer of the same page This problem is found in meego testing: http://bugs.meego.com/show_bug.cgi?id=6672 A file in btrfs is mmaped and the mmaped buffer is passed to pwrite to write to the same page of the same file. In btrfs_file_aio_write(), the pages is locked by prepare_pages(). So when btrfs_copy_from_user() is called, page fault happens and the same page needs to be locked again in filemap_fault(). The fix is to move iov_iter_fault_in_readable() before prepage_pages() to make page fault happen before pages are locked. And also disable page fault in critical region in btrfs_copy_from_user(). Reviewed-by: Yan, Zheng Signed-off-by: Zhong, Xin Signed-off-by: Chris Mason diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index c1faded..66836d8 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -48,30 +48,34 @@ static noinline int btrfs_copy_from_user(loff_t pos, int num_pages, struct page **prepared_pages, struct iov_iter *i) { - size_t copied; + size_t copied = 0; int pg = 0; int offset = pos & (PAGE_CACHE_SIZE - 1); + int total_copied = 0; while (write_bytes > 0) { size_t count = min_t(size_t, PAGE_CACHE_SIZE - offset, write_bytes); struct page *page = prepared_pages[pg]; -again: - if (unlikely(iov_iter_fault_in_readable(i, count))) - return -EFAULT; - - /* Copy data from userspace to the current page */ - copied = iov_iter_copy_from_user(page, i, offset, count); + /* + * Copy data from userspace to the current page + * + * Disable pagefault to avoid recursive lock since + * the pages are already locked + */ + pagefault_disable(); + copied = iov_iter_copy_from_user_atomic(page, i, offset, count); + pagefault_enable(); /* Flush processor's dcache for this page */ flush_dcache_page(page); iov_iter_advance(i, copied); write_bytes -= copied; + total_copied += copied; + /* Return to btrfs_file_aio_write to fault page */ if (unlikely(copied == 0)) { - count = min_t(size_t, PAGE_CACHE_SIZE - offset, - iov_iter_single_seg_count(i)); - goto again; + break; } if (unlikely(copied < PAGE_CACHE_SIZE - offset)) { @@ -81,7 +85,7 @@ again: offset = 0; } } - return 0; + return total_copied; } /* @@ -854,6 +858,8 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb, unsigned long last_index; int will_write; int buffered = 0; + int copied = 0; + int dirty_pages = 0; will_write = ((file->f_flags & O_DSYNC) || IS_SYNC(inode) || (file->f_flags & O_DIRECT)); @@ -970,7 +976,17 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb, WARN_ON(num_pages > nrptrs); memset(pages, 0, sizeof(struct page *) * nrptrs); - ret = btrfs_delalloc_reserve_space(inode, write_bytes); + /* + * Fault pages before locking them in prepare_pages + * to avoid recursive lock + */ + if (unlikely(iov_iter_fault_in_readable(&i, write_bytes))) { + ret = -EFAULT; + goto out; + } + + ret = btrfs_delalloc_reserve_space(inode, + num_pages << PAGE_CACHE_SHIFT); if (ret) goto out; @@ -978,37 +994,49 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb, pos, first_index, last_index, write_bytes); if (ret) { - btrfs_delalloc_release_space(inode, write_bytes); + btrfs_delalloc_release_space(inode, + num_pages << PAGE_CACHE_SHIFT); goto out; } - ret = btrfs_copy_from_user(pos, num_pages, + copied = btrfs_copy_from_user(pos, num_pages, write_bytes, pages, &i); - if (ret == 0) { + dirty_pages = (copied + PAGE_CACHE_SIZE - 1) >> + PAGE_CACHE_SHIFT; + + if (num_pages > dirty_pages) { + if (copied > 0) + atomic_inc( + &BTRFS_I(inode)->outstanding_extents); + btrfs_delalloc_release_space(inode, + (num_pages - dirty_pages) << + PAGE_CACHE_SHIFT); + } + + if (copied > 0) { dirty_and_release_pages(NULL, root, file, pages, - num_pages, pos, write_bytes); + dirty_pages, pos, copied); } btrfs_drop_pages(pages, num_pages); - if (ret) { - btrfs_delalloc_release_space(inode, write_bytes); - goto out; - } - if (will_write) { - filemap_fdatawrite_range(inode->i_mapping, pos, - pos + write_bytes - 1); - } else { - balance_dirty_pages_ratelimited_nr(inode->i_mapping, - num_pages); - if (num_pages < - (root->leafsize >> PAGE_CACHE_SHIFT) + 1) - btrfs_btree_balance_dirty(root, 1); - btrfs_throttle(root); + if (copied > 0) { + if (will_write) { + filemap_fdatawrite_range(inode->i_mapping, pos, + pos + copied - 1); + } else { + balance_dirty_pages_ratelimited_nr( + inode->i_mapping, + dirty_pages); + if (dirty_pages < + (root->leafsize >> PAGE_CACHE_SHIFT) + 1) + btrfs_btree_balance_dirty(root, 1); + btrfs_throttle(root); + } } - pos += write_bytes; - num_written += write_bytes; + pos += copied; + num_written += copied; cond_resched(); } -- cgit v0.10.2 From fdfb1e4f6c61477a61890b64974d65cdc3a98702 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Fri, 10 Dec 2010 06:41:56 +0000 Subject: Btrfs: Make async snapshot ioctl more generic If we had reserved some bytes in struct btrfs_ioctl_vol_args, we wouldn't have to create a new structure for async snapshot creation. Here we convert async snapshot ioctl to use a more generic ABI, as we'll add more ioctls for snapshots/subvolumes in the future, readonly snapshots for example. Signed-off-by: Li Zefan Signed-off-by: Chris Mason diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 7cc2e8e..f87552a 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -947,31 +947,41 @@ out: static noinline int btrfs_ioctl_snap_create(struct file *file, void __user *arg, int subvol, - int async) + int v2) { struct btrfs_ioctl_vol_args *vol_args = NULL; - struct btrfs_ioctl_async_vol_args *async_vol_args = NULL; + struct btrfs_ioctl_vol_args_v2 *vol_args_v2 = NULL; char *name; u64 fd; - u64 transid = 0; int ret; - if (async) { - async_vol_args = memdup_user(arg, sizeof(*async_vol_args)); - if (IS_ERR(async_vol_args)) - return PTR_ERR(async_vol_args); + if (v2) { + u64 transid = 0; + u64 *ptr = NULL; - name = async_vol_args->name; - fd = async_vol_args->fd; - async_vol_args->name[BTRFS_SNAPSHOT_NAME_MAX] = '\0'; + vol_args_v2 = memdup_user(arg, sizeof(*vol_args_v2)); + if (IS_ERR(vol_args_v2)) + return PTR_ERR(vol_args_v2); + + if (vol_args_v2->flags & ~BTRFS_SUBVOL_CREATE_ASYNC) { + ret = -EINVAL; + goto out; + } + + name = vol_args_v2->name; + fd = vol_args_v2->fd; + vol_args_v2->name[BTRFS_SUBVOL_NAME_MAX] = '\0'; + + if (vol_args_v2->flags & BTRFS_SUBVOL_CREATE_ASYNC) + ptr = &transid; ret = btrfs_ioctl_snap_create_transid(file, name, fd, - subvol, &transid); + subvol, ptr); - if (ret == 0 && + if (ret == 0 && ptr && copy_to_user(arg + - offsetof(struct btrfs_ioctl_async_vol_args, - transid), &transid, sizeof(transid))) + offsetof(struct btrfs_ioctl_vol_args_v2, + transid), ptr, sizeof(*ptr))) ret = -EFAULT; } else { vol_args = memdup_user(arg, sizeof(*vol_args)); @@ -984,9 +994,9 @@ static noinline int btrfs_ioctl_snap_create(struct file *file, ret = btrfs_ioctl_snap_create_transid(file, name, fd, subvol, NULL); } - +out: kfree(vol_args); - kfree(async_vol_args); + kfree(vol_args_v2); return ret; } @@ -2248,7 +2258,7 @@ long btrfs_ioctl(struct file *file, unsigned int return btrfs_ioctl_getversion(file, argp); case BTRFS_IOC_SNAP_CREATE: return btrfs_ioctl_snap_create(file, argp, 0, 0); - case BTRFS_IOC_SNAP_CREATE_ASYNC: + case BTRFS_IOC_SNAP_CREATE_V2: return btrfs_ioctl_snap_create(file, argp, 0, 1); case BTRFS_IOC_SUBVOL_CREATE: return btrfs_ioctl_snap_create(file, argp, 1, 0); diff --git a/fs/btrfs/ioctl.h b/fs/btrfs/ioctl.h index 17c99eb..c344d12 100644 --- a/fs/btrfs/ioctl.h +++ b/fs/btrfs/ioctl.h @@ -30,11 +30,15 @@ struct btrfs_ioctl_vol_args { char name[BTRFS_PATH_NAME_MAX + 1]; }; -#define BTRFS_SNAPSHOT_NAME_MAX 4079 -struct btrfs_ioctl_async_vol_args { +#define BTRFS_SUBVOL_CREATE_ASYNC (1ULL << 0) + +#define BTRFS_SUBVOL_NAME_MAX 4039 +struct btrfs_ioctl_vol_args_v2 { __s64 fd; __u64 transid; - char name[BTRFS_SNAPSHOT_NAME_MAX + 1]; + __u64 flags; + __u64 unused[4]; + char name[BTRFS_SUBVOL_NAME_MAX + 1]; }; #define BTRFS_INO_LOOKUP_PATH_MAX 4080 @@ -187,6 +191,6 @@ struct btrfs_ioctl_space_args { struct btrfs_ioctl_space_args) #define BTRFS_IOC_START_SYNC _IOR(BTRFS_IOCTL_MAGIC, 24, __u64) #define BTRFS_IOC_WAIT_SYNC _IOW(BTRFS_IOCTL_MAGIC, 22, __u64) -#define BTRFS_IOC_SNAP_CREATE_ASYNC _IOW(BTRFS_IOCTL_MAGIC, 23, \ - struct btrfs_ioctl_async_vol_args) +#define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, \ + struct btrfs_ioctl_vol_args_v2) #endif -- cgit v0.10.2 From 3dd1462e82bcab7625cec129952f26dae7a8b742 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Tue, 7 Dec 2010 14:54:09 +0000 Subject: Btrfs: fix compiler warnings ... regarding an unused function when !MIGRATION, and regarding a printk() format string vs argument mismatch. Signed-off-by: Jan Beulich Signed-off-by: Chris Mason diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 33b6d45..b803c26 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -696,6 +696,7 @@ static int btree_submit_bio_hook(struct inode *inode, int rw, struct bio *bio, __btree_submit_bio_done); } +#ifdef CONFIG_MIGRATION static int btree_migratepage(struct address_space *mapping, struct page *newpage, struct page *page) { @@ -712,12 +713,9 @@ static int btree_migratepage(struct address_space *mapping, if (page_has_private(page) && !try_to_release_page(page, GFP_KERNEL)) return -EAGAIN; -#ifdef CONFIG_MIGRATION return migrate_page(mapping, newpage, page); -#else - return -ENOSYS; -#endif } +#endif static int btree_writepage(struct page *page, struct writeback_control *wbc) { diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 4875d69..5f91944 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -5712,9 +5712,9 @@ static void btrfs_end_dio_bio(struct bio *bio, int err) if (err) { printk(KERN_ERR "btrfs direct IO failed ino %lu rw %lu " - "disk_bytenr %lu len %u err no %d\n", - dip->inode->i_ino, bio->bi_rw, bio->bi_sector, - bio->bi_size, err); + "sector %#Lx len %u err no %d\n", + dip->inode->i_ino, bio->bi_rw, + (unsigned long long)bio->bi_sector, bio->bi_size, err); dip->errors = 1; /* -- cgit v0.10.2 From 79aeec5822cea63cf732bbc0c9f3337542352616 Mon Sep 17 00:00:00 2001 From: Vasanthy Kolluri Date: Wed, 8 Dec 2010 13:05:45 +0000 Subject: enic: Bug Fix: Pass napi reference to the isr that services receive queue Pass reference to napi instead of enic device to the isr that services receive queue. Signed-off-by: Vasanthy Kolluri Signed-off-by: Roopa Prabhu Signed-off-by: David Wang Signed-off-by: David S. Miller diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c index a466ef9..aa28b27 100644 --- a/drivers/net/enic/enic_main.c +++ b/drivers/net/enic/enic_main.c @@ -1962,7 +1962,8 @@ static void enic_poll_controller(struct net_device *netdev) case VNIC_DEV_INTR_MODE_MSIX: for (i = 0; i < enic->rq_count; i++) { intr = enic_msix_rq_intr(enic, i); - enic_isr_msix_rq(enic->msix_entry[intr].vector, enic); + enic_isr_msix_rq(enic->msix_entry[intr].vector, + &enic->napi[i]); } intr = enic_msix_wq_intr(enic, i); enic_isr_msix_wq(enic->msix_entry[intr].vector, enic); -- cgit v0.10.2 From 40a010395cd66053f07bffeb3da5e44683bac30e Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Tue, 7 Dec 2010 17:11:09 +0000 Subject: SCTP: Fix SCTP_SET_PEER_PRIMARY_ADDR to accpet v4mapped address SCTP_SET_PEER_PRIMARY_ADDR does not accpet v4mapped address, using v4mapped address in SCTP_SET_PEER_PRIMARY_ADDR socket option will get -EADDRNOTAVAIL error if v4map is enabled. This patch try to fix it by mapping v4mapped address to v4 address if allowed. Signed-off-by: Wei Yongjun Acked-by: Vlad Yasevich Signed-off-by: David S. Miller diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 6bd5543..0b9ee34 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -2932,6 +2932,7 @@ static int sctp_setsockopt_peer_primary_addr(struct sock *sk, char __user *optva struct sctp_association *asoc = NULL; struct sctp_setpeerprim prim; struct sctp_chunk *chunk; + struct sctp_af *af; int err; sp = sctp_sk(sk); @@ -2959,6 +2960,13 @@ static int sctp_setsockopt_peer_primary_addr(struct sock *sk, char __user *optva if (!sctp_state(asoc, ESTABLISHED)) return -ENOTCONN; + af = sctp_get_af_specific(prim.sspp_addr.ss_family); + if (!af) + return -EINVAL; + + if (!af->addr_valid((union sctp_addr *)&prim.sspp_addr, sp, NULL)) + return -EADDRNOTAVAIL; + if (!sctp_assoc_lookup_laddr(asoc, (union sctp_addr *)&prim.sspp_addr)) return -EADDRNOTAVAIL; -- cgit v0.10.2 From fb890ae7d615f4b4f5689144b6832230ab2046aa Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Thu, 9 Dec 2010 09:50:08 +0000 Subject: MAINTAINERS: remove me from tulip It was a nice idea, but -ENOTIME and -ENOHW. I never got around to doing a lot of the clean up that I intended to. Signed-off-by: Kyle McMartin Acked-by: Grant Grundler Signed-off-by: David S. Miller diff --git a/MAINTAINERS b/MAINTAINERS index 9206cb4..dec390d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5926,7 +5926,6 @@ F: include/linux/tty.h TULIP NETWORK DRIVERS M: Grant Grundler -M: Kyle McMartin L: netdev@vger.kernel.org S: Maintained F: drivers/net/tulip/ -- cgit v0.10.2 From d9ca676bcb26e1fdff9265a3e70f697cd381c889 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Wed, 8 Dec 2010 19:40:47 +0000 Subject: atm: correct sysfs 'device' link creation and parent relationships The ATM subsystem was incorrectly creating the 'device' link for ATM nodes in sysfs. This led to incorrect device/parent relationships exposed by sysfs and udev. Instead of rolling the 'device' link by hand in the generic ATM code, pass each ATM driver's bus device down to the sysfs code and let sysfs do this stuff correctly. Signed-off-by: Dan Williams Signed-off-by: David S. Miller diff --git a/drivers/atm/adummy.c b/drivers/atm/adummy.c index 46b9476..f9b983a 100644 --- a/drivers/atm/adummy.c +++ b/drivers/atm/adummy.c @@ -154,7 +154,7 @@ static int __init adummy_init(void) err = -ENOMEM; goto out; } - atm_dev = atm_dev_register(DEV_LABEL, &adummy_ops, -1, NULL); + atm_dev = atm_dev_register(DEV_LABEL, NULL, &adummy_ops, -1, NULL); if (!atm_dev) { printk(KERN_ERR DEV_LABEL ": atm_dev_register() failed\n"); err = -ENODEV; diff --git a/drivers/atm/ambassador.c b/drivers/atm/ambassador.c index a33896a..ffe9b65 100644 --- a/drivers/atm/ambassador.c +++ b/drivers/atm/ambassador.c @@ -2244,7 +2244,8 @@ static int __devinit amb_probe(struct pci_dev *pci_dev, const struct pci_device_ goto out_reset; } - dev->atm_dev = atm_dev_register (DEV_LABEL, &amb_ops, -1, NULL); + dev->atm_dev = atm_dev_register (DEV_LABEL, &pci_dev->dev, &amb_ops, -1, + NULL); if (!dev->atm_dev) { PRINTD (DBG_ERR, "failed to register Madge ATM adapter"); err = -EINVAL; diff --git a/drivers/atm/atmtcp.c b/drivers/atm/atmtcp.c index b910181..2b464b6 100644 --- a/drivers/atm/atmtcp.c +++ b/drivers/atm/atmtcp.c @@ -366,7 +366,7 @@ static int atmtcp_create(int itf,int persist,struct atm_dev **result) if (!dev_data) return -ENOMEM; - dev = atm_dev_register(DEV_LABEL,&atmtcp_v_dev_ops,itf,NULL); + dev = atm_dev_register(DEV_LABEL,NULL,&atmtcp_v_dev_ops,itf,NULL); if (!dev) { kfree(dev_data); return itf == -1 ? -ENOMEM : -EBUSY; diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c index 97c5898..c495fae 100644 --- a/drivers/atm/eni.c +++ b/drivers/atm/eni.c @@ -2244,7 +2244,7 @@ static int __devinit eni_init_one(struct pci_dev *pci_dev, &zeroes); if (!cpu_zeroes) goto out1; } - dev = atm_dev_register(DEV_LABEL,&ops,-1,NULL); + dev = atm_dev_register(DEV_LABEL, &pci_dev->dev, &ops, -1, NULL); if (!dev) goto out2; pci_set_drvdata(pci_dev, dev); eni_dev->pci_dev = pci_dev; diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c index 5d86bb8..7d912ba 100644 --- a/drivers/atm/firestream.c +++ b/drivers/atm/firestream.c @@ -1911,7 +1911,7 @@ static int __devinit firestream_init_one (struct pci_dev *pci_dev, fs_dev, sizeof (struct fs_dev)); if (!fs_dev) goto err_out; - atm_dev = atm_dev_register("fs", &ops, -1, NULL); + atm_dev = atm_dev_register("fs", &pci_dev->dev, &ops, -1, NULL); if (!atm_dev) goto err_out_free_fs_dev; diff --git a/drivers/atm/fore200e.c b/drivers/atm/fore200e.c index c8fc69c..962c309 100644 --- a/drivers/atm/fore200e.c +++ b/drivers/atm/fore200e.c @@ -2567,14 +2567,14 @@ release: static int __devinit -fore200e_register(struct fore200e* fore200e) +fore200e_register(struct fore200e* fore200e, struct device *parent) { struct atm_dev* atm_dev; DPRINTK(2, "device %s being registered\n", fore200e->name); - atm_dev = atm_dev_register(fore200e->bus->proc_name, &fore200e_ops, -1, - NULL); + atm_dev = atm_dev_register(fore200e->bus->proc_name, parent, &fore200e_ops, + -1, NULL); if (atm_dev == NULL) { printk(FORE200E "unable to register device %s\n", fore200e->name); return -ENODEV; @@ -2594,9 +2594,9 @@ fore200e_register(struct fore200e* fore200e) static int __devinit -fore200e_init(struct fore200e* fore200e) +fore200e_init(struct fore200e* fore200e, struct device *parent) { - if (fore200e_register(fore200e) < 0) + if (fore200e_register(fore200e, parent) < 0) return -ENODEV; if (fore200e->bus->configure(fore200e) < 0) @@ -2662,7 +2662,7 @@ static int __devinit fore200e_sba_probe(struct platform_device *op, sprintf(fore200e->name, "%s-%d", bus->model_name, index); - err = fore200e_init(fore200e); + err = fore200e_init(fore200e, &op->dev); if (err < 0) { fore200e_shutdown(fore200e); kfree(fore200e); @@ -2740,7 +2740,7 @@ fore200e_pca_detect(struct pci_dev *pci_dev, const struct pci_device_id *pci_ent sprintf(fore200e->name, "%s-%d", bus->model_name, index); - err = fore200e_init(fore200e); + err = fore200e_init(fore200e, &pci_dev->dev); if (err < 0) { fore200e_shutdown(fore200e); goto out_free; diff --git a/drivers/atm/he.c b/drivers/atm/he.c index 801e8b6..6cf59bf 100644 --- a/drivers/atm/he.c +++ b/drivers/atm/he.c @@ -366,7 +366,7 @@ he_init_one(struct pci_dev *pci_dev, const struct pci_device_id *pci_ent) goto init_one_failure; } - atm_dev = atm_dev_register(DEV_LABEL, &he_ops, -1, NULL); + atm_dev = atm_dev_register(DEV_LABEL, &pci_dev->dev, &he_ops, -1, NULL); if (!atm_dev) { err = -ENODEV; goto init_one_failure; diff --git a/drivers/atm/horizon.c b/drivers/atm/horizon.c index a957904..24761e1 100644 --- a/drivers/atm/horizon.c +++ b/drivers/atm/horizon.c @@ -2733,7 +2733,8 @@ static int __devinit hrz_probe(struct pci_dev *pci_dev, const struct pci_device_ PRINTD(DBG_INFO, "found Madge ATM adapter (hrz) at: IO %x, IRQ %u, MEM %p", iobase, irq, membase); - dev->atm_dev = atm_dev_register(DEV_LABEL, &hrz_ops, -1, NULL); + dev->atm_dev = atm_dev_register(DEV_LABEL, &pci_dev->dev, &hrz_ops, -1, + NULL); if (!(dev->atm_dev)) { PRINTD(DBG_ERR, "failed to register Madge ATM adapter"); err = -EINVAL; diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c index bce5732..bfb7fee 100644 --- a/drivers/atm/idt77252.c +++ b/drivers/atm/idt77252.c @@ -3698,7 +3698,8 @@ idt77252_init_one(struct pci_dev *pcidev, const struct pci_device_id *id) goto err_out_iounmap; } - dev = atm_dev_register("idt77252", &idt77252_ops, -1, NULL); + dev = atm_dev_register("idt77252", &pcidev->dev, &idt77252_ops, -1, + NULL); if (!dev) { printk("%s: can't register atm device\n", card->name); err = -EIO; diff --git a/drivers/atm/iphase.c b/drivers/atm/iphase.c index 9309d47..7292540 100644 --- a/drivers/atm/iphase.c +++ b/drivers/atm/iphase.c @@ -3172,7 +3172,7 @@ static int __devinit ia_init_one(struct pci_dev *pdev, ret = -ENODEV; goto err_out_free_iadev; } - dev = atm_dev_register(DEV_LABEL, &ops, -1, NULL); + dev = atm_dev_register(DEV_LABEL, &pdev->dev, &ops, -1, NULL); if (!dev) { ret = -ENOMEM; goto err_out_disable_dev; diff --git a/drivers/atm/lanai.c b/drivers/atm/lanai.c index cbe15a8..a395c9a 100644 --- a/drivers/atm/lanai.c +++ b/drivers/atm/lanai.c @@ -2591,7 +2591,7 @@ static int __devinit lanai_init_one(struct pci_dev *pci, return -ENOMEM; } - atmdev = atm_dev_register(DEV_LABEL, &ops, -1, NULL); + atmdev = atm_dev_register(DEV_LABEL, &pci->dev, &ops, -1, NULL); if (atmdev == NULL) { printk(KERN_ERR DEV_LABEL ": couldn't register atm device!\n"); diff --git a/drivers/atm/nicstar.c b/drivers/atm/nicstar.c index 2f3516b..6b313ee 100644 --- a/drivers/atm/nicstar.c +++ b/drivers/atm/nicstar.c @@ -771,7 +771,8 @@ static int __devinit ns_init_card(int i, struct pci_dev *pcidev) } /* Register device */ - card->atmdev = atm_dev_register("nicstar", &atm_ops, -1, NULL); + card->atmdev = atm_dev_register("nicstar", &card->pcidev->dev, &atm_ops, + -1, NULL); if (card->atmdev == NULL) { printk("nicstar%d: can't register device.\n", i); error = 17; diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c index 2e08c99..73fb1c4 100644 --- a/drivers/atm/solos-pci.c +++ b/drivers/atm/solos-pci.c @@ -166,7 +166,7 @@ static irqreturn_t solos_irq(int irq, void *dev_id); static struct atm_vcc* find_vcc(struct atm_dev *dev, short vpi, int vci); static int list_vccs(int vci); static void release_vccs(struct atm_dev *dev); -static int atm_init(struct solos_card *); +static int atm_init(struct solos_card *, struct device *); static void atm_remove(struct solos_card *); static int send_command(struct solos_card *card, int dev, const char *buf, size_t size); static void solos_bh(unsigned long); @@ -1210,7 +1210,7 @@ static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id) if (db_firmware_upgrade) flash_upgrade(card, 3); - err = atm_init(card); + err = atm_init(card, &dev->dev); if (err) goto out_free_irq; @@ -1233,7 +1233,7 @@ static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id) return err; } -static int atm_init(struct solos_card *card) +static int atm_init(struct solos_card *card, struct device *parent) { int i; @@ -1244,7 +1244,7 @@ static int atm_init(struct solos_card *card) skb_queue_head_init(&card->tx_queue[i]); skb_queue_head_init(&card->cli_queue[i]); - card->atmdev[i] = atm_dev_register("solos-pci", &fpga_ops, -1, NULL); + card->atmdev[i] = atm_dev_register("solos-pci", parent, &fpga_ops, -1, NULL); if (!card->atmdev[i]) { dev_err(&card->dev->dev, "Could not register ATM device %d\n", i); atm_remove(card); diff --git a/drivers/atm/zatm.c b/drivers/atm/zatm.c index 4e885d2..6249179 100644 --- a/drivers/atm/zatm.c +++ b/drivers/atm/zatm.c @@ -1597,7 +1597,7 @@ static int __devinit zatm_init_one(struct pci_dev *pci_dev, goto out; } - dev = atm_dev_register(DEV_LABEL, &ops, -1, NULL); + dev = atm_dev_register(DEV_LABEL, &pci_dev->dev, &ops, -1, NULL); if (!dev) goto out_free; diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c index 05bf5a2..989e16e 100644 --- a/drivers/usb/atm/usbatm.c +++ b/drivers/usb/atm/usbatm.c @@ -951,7 +951,9 @@ static int usbatm_atm_init(struct usbatm_data *instance) * condition: callbacks we register can be executed at once, before we have * initialized the struct atm_dev. To protect against this, all callbacks * abort if atm_dev->dev_data is NULL. */ - atm_dev = atm_dev_register(instance->driver_name, &usbatm_atm_devops, -1, NULL); + atm_dev = atm_dev_register(instance->driver_name, + &instance->usb_intf->dev, &usbatm_atm_devops, + -1, NULL); if (!atm_dev) { usb_err(instance, "%s: failed to register ATM device!\n", __func__); return -1; @@ -966,14 +968,6 @@ static int usbatm_atm_init(struct usbatm_data *instance) /* temp init ATM device, set to 128kbit */ atm_dev->link_rate = 128 * 1000 / 424; - ret = sysfs_create_link(&atm_dev->class_dev.kobj, - &instance->usb_intf->dev.kobj, "device"); - if (ret) { - atm_err(instance, "%s: sysfs_create_link failed: %d\n", - __func__, ret); - goto fail_sysfs; - } - if (instance->driver->atm_start && ((ret = instance->driver->atm_start(instance, atm_dev)) < 0)) { atm_err(instance, "%s: atm_start failed: %d!\n", __func__, ret); goto fail; @@ -992,8 +986,6 @@ static int usbatm_atm_init(struct usbatm_data *instance) return 0; fail: - sysfs_remove_link(&atm_dev->class_dev.kobj, "device"); - fail_sysfs: instance->atm_dev = NULL; atm_dev_deregister(atm_dev); /* usbatm_atm_dev_close will eventually be called */ return ret; @@ -1329,7 +1321,6 @@ void usbatm_usb_disconnect(struct usb_interface *intf) /* ATM finalize */ if (instance->atm_dev) { - sysfs_remove_link(&instance->atm_dev->class_dev.kobj, "device"); atm_dev_deregister(instance->atm_dev); instance->atm_dev = NULL; } diff --git a/include/linux/atmdev.h b/include/linux/atmdev.h index a8e4e83..475f8c4 100644 --- a/include/linux/atmdev.h +++ b/include/linux/atmdev.h @@ -427,8 +427,10 @@ extern rwlock_t vcc_sklist_lock; #define ATM_SKB(skb) (((struct atm_skb_data *) (skb)->cb)) -struct atm_dev *atm_dev_register(const char *type,const struct atmdev_ops *ops, - int number,unsigned long *flags); /* number == -1: pick first available */ +struct atm_dev *atm_dev_register(const char *type, struct device *parent, + const struct atmdev_ops *ops, + int number, /* -1 == pick first available */ + unsigned long *flags); struct atm_dev *atm_dev_lookup(int number); void atm_dev_deregister(struct atm_dev *dev); diff --git a/net/atm/atm_sysfs.c b/net/atm/atm_sysfs.c index 799c631..f7fa67c 100644 --- a/net/atm/atm_sysfs.c +++ b/net/atm/atm_sysfs.c @@ -143,12 +143,13 @@ static struct class atm_class = { .dev_uevent = atm_uevent, }; -int atm_register_sysfs(struct atm_dev *adev) +int atm_register_sysfs(struct atm_dev *adev, struct device *parent) { struct device *cdev = &adev->class_dev; int i, j, err; cdev->class = &atm_class; + cdev->parent = parent; dev_set_drvdata(cdev, adev); dev_set_name(cdev, "%s%d", adev->type, adev->number); diff --git a/net/atm/resources.c b/net/atm/resources.c index d29e582..23f45ce 100644 --- a/net/atm/resources.c +++ b/net/atm/resources.c @@ -74,8 +74,9 @@ struct atm_dev *atm_dev_lookup(int number) } EXPORT_SYMBOL(atm_dev_lookup); -struct atm_dev *atm_dev_register(const char *type, const struct atmdev_ops *ops, - int number, unsigned long *flags) +struct atm_dev *atm_dev_register(const char *type, struct device *parent, + const struct atmdev_ops *ops, int number, + unsigned long *flags) { struct atm_dev *dev, *inuse; @@ -115,7 +116,7 @@ struct atm_dev *atm_dev_register(const char *type, const struct atmdev_ops *ops, goto out_fail; } - if (atm_register_sysfs(dev) < 0) { + if (atm_register_sysfs(dev, parent) < 0) { pr_err("atm_register_sysfs failed for dev %s\n", type); atm_proc_dev_deregister(dev); goto out_fail; diff --git a/net/atm/resources.h b/net/atm/resources.h index 126fb18..521431e 100644 --- a/net/atm/resources.h +++ b/net/atm/resources.h @@ -42,6 +42,6 @@ static inline void atm_proc_dev_deregister(struct atm_dev *dev) #endif /* CONFIG_PROC_FS */ -int atm_register_sysfs(struct atm_dev *adev); +int atm_register_sysfs(struct atm_dev *adev, struct device *parent); void atm_unregister_sysfs(struct atm_dev *adev); #endif -- cgit v0.10.2 From 377ecca9ba6d98f31517e2322075e94d1be94561 Mon Sep 17 00:00:00 2001 From: Giuseppe CAVALLARO Date: Wed, 8 Dec 2010 23:05:13 +0000 Subject: phy: add the IC+ IP1001 driver This patch adds the IC+ IP1001 (Gigabit Ethernet Transceiver) driver. I've had to add an additional delay (2ns) to adjust RX clock phase at GMII/ RGMII interface (according to the PHY data-sheet). This helps to have the RGMII working on some ST platforms. Signed-off-by: Giuseppe Cavallaro Signed-off-by: David S. Miller diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig index cb3d13e..35fda5a 100644 --- a/drivers/net/phy/Kconfig +++ b/drivers/net/phy/Kconfig @@ -64,7 +64,7 @@ config BCM63XX_PHY config ICPLUS_PHY tristate "Drivers for ICPlus PHYs" ---help--- - Currently supports the IP175C PHY. + Currently supports the IP175C and IP1001 PHYs. config REALTEK_PHY tristate "Drivers for Realtek PHYs" diff --git a/drivers/net/phy/icplus.c b/drivers/net/phy/icplus.c index c1d2d25..9a09e24 100644 --- a/drivers/net/phy/icplus.c +++ b/drivers/net/phy/icplus.c @@ -30,7 +30,7 @@ #include #include -MODULE_DESCRIPTION("ICPlus IP175C PHY driver"); +MODULE_DESCRIPTION("ICPlus IP175C/IC1001 PHY drivers"); MODULE_AUTHOR("Michael Barkowski"); MODULE_LICENSE("GPL"); @@ -89,6 +89,33 @@ static int ip175c_config_init(struct phy_device *phydev) return 0; } +static int ip1001_config_init(struct phy_device *phydev) +{ + int err, value; + + /* Software Reset PHY */ + value = phy_read(phydev, MII_BMCR); + value |= BMCR_RESET; + err = phy_write(phydev, MII_BMCR, value); + if (err < 0) + return err; + + do { + value = phy_read(phydev, MII_BMCR); + } while (value & BMCR_RESET); + + /* Additional delay (2ns) used to adjust RX clock phase + * at GMII/ RGMII interface */ + value = phy_read(phydev, 16); + value |= 0x3; + + err = phy_write(phydev, 16, value); + if (err < 0) + return err; + + return err; +} + static int ip175c_read_status(struct phy_device *phydev) { if (phydev->addr == 4) /* WAN port */ @@ -121,21 +148,43 @@ static struct phy_driver ip175c_driver = { .driver = { .owner = THIS_MODULE,}, }; -static int __init ip175c_init(void) +static struct phy_driver ip1001_driver = { + .phy_id = 0x02430d90, + .name = "ICPlus IP1001", + .phy_id_mask = 0x0ffffff0, + .features = PHY_GBIT_FEATURES | SUPPORTED_Pause | + SUPPORTED_Asym_Pause, + .config_init = &ip1001_config_init, + .config_aneg = &genphy_config_aneg, + .read_status = &genphy_read_status, + .suspend = genphy_suspend, + .resume = genphy_resume, + .driver = { .owner = THIS_MODULE,}, +}; + +static int __init icplus_init(void) { + int ret = 0; + + ret = phy_driver_register(&ip1001_driver); + if (ret < 0) + return -ENODEV; + return phy_driver_register(&ip175c_driver); } -static void __exit ip175c_exit(void) +static void __exit icplus_exit(void) { + phy_driver_unregister(&ip1001_driver); phy_driver_unregister(&ip175c_driver); } -module_init(ip175c_init); -module_exit(ip175c_exit); +module_init(icplus_init); +module_exit(icplus_exit); static struct mdio_device_id __maybe_unused icplus_tbl[] = { { 0x02430d80, 0x0ffffff0 }, + { 0x02430d90, 0x0ffffff0 }, { } }; -- cgit v0.10.2 From c710245caa41060e983cc9cb5ffcc020e02ca45f Mon Sep 17 00:00:00 2001 From: Casey Leedom Date: Thu, 9 Dec 2010 09:38:24 +0000 Subject: cxgb4vf: Ingress Queue Entry Size needs to be 64 bytes Was using L1_CACHE_BYTES for the Ingress Queue Entry Size but it really needs to be 64 bytes in order to support the largest message sizes. Signed-off-by: Casey Leedom Signed-off-by: David S. Miller diff --git a/drivers/net/cxgb4vf/cxgb4vf_main.c b/drivers/net/cxgb4vf/cxgb4vf_main.c index d887a76..6bf464a 100644 --- a/drivers/net/cxgb4vf/cxgb4vf_main.c +++ b/drivers/net/cxgb4vf/cxgb4vf_main.c @@ -2269,6 +2269,7 @@ static void __devinit cfg_queues(struct adapter *adapter) { struct sge *s = &adapter->sge; int q10g, n10g, qidx, pidx, qs; + size_t iqe_size; /* * We should not be called till we know how many Queue Sets we can @@ -2313,6 +2314,13 @@ static void __devinit cfg_queues(struct adapter *adapter) s->ethqsets = qidx; /* + * The Ingress Queue Entry Size for our various Response Queues needs + * to be big enough to accommodate the largest message we can receive + * from the chip/firmware; which is 64 bytes ... + */ + iqe_size = 64; + + /* * Set up default Queue Set parameters ... Start off with the * shortest interrupt holdoff timer. */ @@ -2320,7 +2328,7 @@ static void __devinit cfg_queues(struct adapter *adapter) struct sge_eth_rxq *rxq = &s->ethrxq[qs]; struct sge_eth_txq *txq = &s->ethtxq[qs]; - init_rspq(&rxq->rspq, 0, 0, 1024, L1_CACHE_BYTES); + init_rspq(&rxq->rspq, 0, 0, 1024, iqe_size); rxq->fl.size = 72; txq->q.size = 1024; } @@ -2329,8 +2337,7 @@ static void __devinit cfg_queues(struct adapter *adapter) * The firmware event queue is used for link state changes and * notifications of TX DMA completions. */ - init_rspq(&s->fw_evtq, SGE_TIMER_RSTRT_CNTR, 0, 512, - L1_CACHE_BYTES); + init_rspq(&s->fw_evtq, SGE_TIMER_RSTRT_CNTR, 0, 512, iqe_size); /* * The forwarded interrupt queue is used when we're in MSI interrupt @@ -2346,7 +2353,7 @@ static void __devinit cfg_queues(struct adapter *adapter) * any time ... */ init_rspq(&s->intrq, SGE_TIMER_RSTRT_CNTR, 0, MSIX_ENTRIES + 1, - L1_CACHE_BYTES); + iqe_size); } /* -- cgit v0.10.2 From a19faf0250e09b16cac169354126404bc8aa342b Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sun, 5 Dec 2010 18:50:32 +0000 Subject: net: fix skb_defer_rx_timestamp() After commit c1f19b51d1d8 (net: support time stamping in phy devices.), kernel might crash if CONFIG_NETWORK_PHY_TIMESTAMPING=y and skb_defer_rx_timestamp() handles a packet without an ethernet header. Fixes kernel bugzilla #24102 Reference: https://bugzilla.kernel.org/show_bug.cgi?id=24102 Reported-and-tested-by: Andrew Watts Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/core/timestamping.c b/net/core/timestamping.c index 0ae6c22..c19bb4e 100644 --- a/net/core/timestamping.c +++ b/net/core/timestamping.c @@ -96,11 +96,13 @@ bool skb_defer_rx_timestamp(struct sk_buff *skb) struct phy_device *phydev; unsigned int type; - skb_push(skb, ETH_HLEN); + if (skb_headroom(skb) < ETH_HLEN) + return false; + __skb_push(skb, ETH_HLEN); type = classify(skb); - skb_pull(skb, ETH_HLEN); + __skb_pull(skb, ETH_HLEN); switch (type) { case PTP_CLASS_V1_IPV4: -- cgit v0.10.2 From c2015dc88a57090bcf67ab7cfcdbc34671598d36 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Mon, 6 Dec 2010 20:52:40 +0000 Subject: OMAP2: PRCM: fix some SHIFT macros that were actually bitmasks After Charu's GPIO hwmod patches, GPIO initialization on N800 emits the following messages for all GPIO banks: omap_hwmod: gpio1: cannot be enabled (3) This is due to OMAP24XX_ST_GPIOS_SHIFT being defined as a bitmask. Fix this and also fix two other macros that had the same problem. Thanks to Tony Lindgren for originally reporting this bug. Signed-off-by: Paul Walmsley Signed-off-by: Tony Lindgren diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h index 298a22a..f81acee 100644 --- a/arch/arm/mach-omap2/prcm-common.h +++ b/arch/arm/mach-omap2/prcm-common.h @@ -243,13 +243,14 @@ #define OMAP24XX_EN_GPT1_MASK (1 << 0) /* PM_WKST_WKUP, CM_IDLEST_WKUP shared bits */ -#define OMAP24XX_ST_GPIOS_SHIFT (1 << 2) -#define OMAP24XX_ST_GPIOS_MASK 2 -#define OMAP24XX_ST_GPT1_SHIFT (1 << 0) -#define OMAP24XX_ST_GPT1_MASK 0 +#define OMAP24XX_ST_GPIOS_SHIFT 2 +#define OMAP24XX_ST_GPIOS_MASK (1 << 2) +#define OMAP24XX_ST_GPT1_SHIFT 0 +#define OMAP24XX_ST_GPT1_MASK (1 << 0) /* CM_IDLEST_MDM and PM_WKST_MDM shared bits */ -#define OMAP2430_ST_MDM_SHIFT (1 << 0) +#define OMAP2430_ST_MDM_SHIFT 0 +#define OMAP2430_ST_MDM_MASK (1 << 0) /* 3430 register bits shared between CM & PRM registers */ -- cgit v0.10.2 From d90aa92c0c1625d7f02050e4d2924805840cda3d Mon Sep 17 00:00:00 2001 From: Lin Ming Date: Thu, 9 Dec 2010 16:50:52 +0800 Subject: acpi: fix _OSI string setup regression commit b0ed7a91(ACPICA/ACPI: Add new host interfaces for _OSI suppor) introduced a regression that _OSI string setup fails. There are 2 paths to setup _OSI string. DMI: acpi_dmi_osi_linux -> set_osi_linux -> acpi_osi_setup -> copy _OSI string to osi_setup_string Boot command line: acpi_osi_setup -> copy _OSI string to osi_setup_string Later, acpi_osi_setup_late will be called to handle osi_setup_string. If _OSI string is "Linux" or "!Linux", then the call path is, acpi_osi_setup_late -> acpi_cmdline_osi_linux -> set_osi_linux -> acpi_osi_setup -> copy _OSI string to osi_setup_string This actually never installs _OSI string(acpi_install_interface not called), but just copy the _OSI string to osi_setup_string. This patch fixes the regression. Reported-and-tested-by: Lukas Hejtmanek Signed-off-by: Lin Ming Signed-off-by: Len Brown diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 966fedd..6867443 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -152,8 +152,7 @@ static struct osi_linux { unsigned int enable:1; unsigned int dmi:1; unsigned int cmdline:1; - unsigned int known:1; -} osi_linux = { 0, 0, 0, 0}; +} osi_linux = {0, 0, 0}; static u32 acpi_osi_handler(acpi_string interface, u32 supported) { @@ -1055,13 +1054,22 @@ static int __init acpi_os_name_setup(char *str) __setup("acpi_os_name=", acpi_os_name_setup); +void __init acpi_osi_setup(char *str) +{ + if (!acpi_gbl_create_osi_method) + return; + + if (str == NULL || *str == '\0') { + printk(KERN_INFO PREFIX "_OSI method disabled\n"); + acpi_gbl_create_osi_method = FALSE; + } else + strncpy(osi_setup_string, str, OSI_STRING_LENGTH_MAX); +} + static void __init set_osi_linux(unsigned int enable) { - if (osi_linux.enable != enable) { + if (osi_linux.enable != enable) osi_linux.enable = enable; - printk(KERN_NOTICE PREFIX "%sed _OSI(Linux)\n", - enable ? "Add": "Delet"); - } if (osi_linux.enable) acpi_osi_setup("Linux"); @@ -1073,7 +1081,8 @@ static void __init set_osi_linux(unsigned int enable) static void __init acpi_cmdline_osi_linux(unsigned int enable) { - osi_linux.cmdline = 1; /* cmdline set the default */ + osi_linux.cmdline = 1; /* cmdline set the default and override DMI */ + osi_linux.dmi = 0; set_osi_linux(enable); return; @@ -1081,15 +1090,12 @@ static void __init acpi_cmdline_osi_linux(unsigned int enable) void __init acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d) { - osi_linux.dmi = 1; /* DMI knows that this box asks OSI(Linux) */ - printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident); if (enable == -1) return; - osi_linux.known = 1; /* DMI knows which OSI(Linux) default needed */ - + osi_linux.dmi = 1; /* DMI knows that this box asks OSI(Linux) */ set_osi_linux(enable); return; @@ -1105,36 +1111,37 @@ void __init acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d) static void __init acpi_osi_setup_late(void) { char *str = osi_setup_string; + acpi_status status; if (*str == '\0') return; - if (!strcmp("!Linux", str)) { - acpi_cmdline_osi_linux(0); /* !enable */ - } else if (*str == '!') { - if (acpi_remove_interface(++str) == AE_OK) + if (*str == '!') { + status = acpi_remove_interface(++str); + + if (ACPI_SUCCESS(status)) printk(KERN_INFO PREFIX "Deleted _OSI(%s)\n", str); - } else if (!strcmp("Linux", str)) { - acpi_cmdline_osi_linux(1); /* enable */ } else { - if (acpi_install_interface(str) == AE_OK) + status = acpi_install_interface(str); + + if (ACPI_SUCCESS(status)) printk(KERN_INFO PREFIX "Added _OSI(%s)\n", str); } } -int __init acpi_osi_setup(char *str) +static int __init osi_setup(char *str) { - if (str == NULL || *str == '\0') { - printk(KERN_INFO PREFIX "_OSI method disabled\n"); - acpi_gbl_create_osi_method = FALSE; - } else { - strncpy(osi_setup_string, str, OSI_STRING_LENGTH_MAX); - } + if (str && !strcmp("Linux", str)) + acpi_cmdline_osi_linux(1); + else if (str && !strcmp("!Linux", str)) + acpi_cmdline_osi_linux(0); + else + acpi_osi_setup(str); return 1; } -__setup("acpi_osi=", acpi_osi_setup); +__setup("acpi_osi=", osi_setup); /* enable serialization to combat AE_ALREADY_EXISTS errors */ static int __init acpi_serialize_setup(char *str) diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 050a7bc..67c91b4 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -219,7 +219,7 @@ static inline int acpi_video_display_switch_support(void) extern int acpi_blacklisted(void); extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d); -extern int acpi_osi_setup(char *str); +extern void acpi_osi_setup(char *str); #ifdef CONFIG_ACPI_NUMA int acpi_get_pxm(acpi_handle handle); -- cgit v0.10.2 From 12d3206466d2074ef0684aaf7759ae01a0a92560 Mon Sep 17 00:00:00 2001 From: Lin Ming Date: Thu, 9 Dec 2010 16:51:06 +0800 Subject: ACPI: fix allowing to add/remove multiple _OSI strings commit b0ed7a91(ACPICA/ACPI: Add new host interfaces for _OSI suppor) introduced another regression that only one _OSI string can be added or removed. Now multiple _OSI strings can be added or removed, for example acpi_osi=Linux acpi_osi=FreeBSD acpi_osi="!Windows 2006" Signed-off-by: Lin Ming Signed-off-by: Len Brown diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 6867443..d0a1bb5 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -110,9 +110,6 @@ struct acpi_ioremap { static LIST_HEAD(acpi_ioremaps); static DEFINE_SPINLOCK(acpi_ioremap_lock); -#define OSI_STRING_LENGTH_MAX 64 /* arbitrary */ -static char osi_setup_string[OSI_STRING_LENGTH_MAX]; - static void __init acpi_osi_setup_late(void); /* @@ -1054,16 +1051,47 @@ static int __init acpi_os_name_setup(char *str) __setup("acpi_os_name=", acpi_os_name_setup); +#define OSI_STRING_LENGTH_MAX 64 /* arbitrary */ +#define OSI_STRING_ENTRIES_MAX 16 /* arbitrary */ + +struct osi_setup_entry { + char string[OSI_STRING_LENGTH_MAX]; + bool enable; +}; + +static struct osi_setup_entry __initdata osi_setup_entries[OSI_STRING_ENTRIES_MAX]; + void __init acpi_osi_setup(char *str) { + struct osi_setup_entry *osi; + bool enable = true; + int i; + if (!acpi_gbl_create_osi_method) return; if (str == NULL || *str == '\0') { printk(KERN_INFO PREFIX "_OSI method disabled\n"); acpi_gbl_create_osi_method = FALSE; - } else - strncpy(osi_setup_string, str, OSI_STRING_LENGTH_MAX); + return; + } + + if (*str == '!') { + str++; + enable = false; + } + + for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) { + osi = &osi_setup_entries[i]; + if (!strcmp(osi->string, str)) { + osi->enable = enable; + break; + } else if (osi->string[0] == '\0') { + osi->enable = enable; + strncpy(osi->string, str, OSI_STRING_LENGTH_MAX); + break; + } + } } static void __init set_osi_linux(unsigned int enable) @@ -1110,22 +1138,28 @@ void __init acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d) */ static void __init acpi_osi_setup_late(void) { - char *str = osi_setup_string; + struct osi_setup_entry *osi; + char *str; + int i; acpi_status status; - if (*str == '\0') - return; + for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) { + osi = &osi_setup_entries[i]; + str = osi->string; - if (*str == '!') { - status = acpi_remove_interface(++str); + if (*str == '\0') + break; + if (osi->enable) { + status = acpi_install_interface(str); - if (ACPI_SUCCESS(status)) - printk(KERN_INFO PREFIX "Deleted _OSI(%s)\n", str); - } else { - status = acpi_install_interface(str); + if (ACPI_SUCCESS(status)) + printk(KERN_INFO PREFIX "Added _OSI(%s)\n", str); + } else { + status = acpi_remove_interface(str); - if (ACPI_SUCCESS(status)) - printk(KERN_INFO PREFIX "Added _OSI(%s)\n", str); + if (ACPI_SUCCESS(status)) + printk(KERN_INFO PREFIX "Deleted _OSI(%s)\n", str); + } } } -- cgit v0.10.2 From 3353bebe7c89725ab2f476b9d8d618259402d52e Mon Sep 17 00:00:00 2001 From: Len Brown Date: Tue, 30 Nov 2010 18:21:46 -0500 Subject: ACPI: video: fix build for VIDEO_OUTPUT_CONTROL=n drivers/built-in.o: In function `acpi_video_bus_put_devices': video.c:(.text+0x79663): undefined reference to `video_output_unregister' drivers/built-in.o: In function `acpi_video_bus_add': video.c:(.text+0x7b0b3): undefined reference to `video_output_register' Signed-off-by: Len Brown diff --git a/include/linux/video_output.h b/include/linux/video_output.h index 2fb46bc..ed5cdeb 100644 --- a/include/linux/video_output.h +++ b/include/linux/video_output.h @@ -23,6 +23,7 @@ #ifndef _LINUX_VIDEO_OUTPUT_H #define _LINUX_VIDEO_OUTPUT_H #include +#include struct output_device; struct output_properties { int (*set_state)(struct output_device *); @@ -34,9 +35,23 @@ struct output_device { struct device dev; }; #define to_output_device(obj) container_of(obj, struct output_device, dev) +#if defined(CONFIG_VIDEO_OUTPUT_CONTROL) || defined(CONFIG_VIDEO_OUTPUT_CONTROL_MODULE) struct output_device *video_output_register(const char *name, struct device *dev, void *devdata, struct output_properties *op); void video_output_unregister(struct output_device *dev); +#else +static struct output_device *video_output_register(const char *name, + struct device *dev, + void *devdata, + struct output_properties *op) +{ + return ERR_PTR(-ENODEV); +} +static void video_output_unregister(struct output_device *dev) +{ + return; +} +#endif #endif -- cgit v0.10.2 From b72512ed706efb26087fcbbc5f98ed64ac1230d5 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Sun, 5 Sep 2010 14:51:49 +0100 Subject: ACPI: video: fix build for CONFIG_ACPI=n MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In file included from drivers/gpu/drm/i915/intel_opregion.c:30: include/acpi/video.h:22: warning: ‘struct acpi_device’ declared inside parameter list ... include/acpi/video.h:24: error: ‘ENODEV’ undeclared (first use in this function) Signed-off-by: Chris Wilson Signed-off-by: Len Brown diff --git a/include/acpi/video.h b/include/acpi/video.h index 551793c..0e98e67 100644 --- a/include/acpi/video.h +++ b/include/acpi/video.h @@ -1,6 +1,10 @@ #ifndef __ACPI_VIDEO_H #define __ACPI_VIDEO_H +#include /* for ENODEV */ + +struct acpi_device; + #define ACPI_VIDEO_DISPLAY_CRT 1 #define ACPI_VIDEO_DISPLAY_TV 2 #define ACPI_VIDEO_DISPLAY_DVI 3 @@ -26,4 +30,3 @@ static inline int acpi_video_get_edid(struct acpi_device *device, int type, #endif #endif - -- cgit v0.10.2 From 3b38bb5f7f06356a89bb2cbf92ad346025e95192 Mon Sep 17 00:00:00 2001 From: Huang Ying Date: Thu, 2 Dec 2010 10:40:53 +0800 Subject: ACPI, APEI, use raw spinlock in ERST ERST writing may be used in NMI or Machine Check Exception handler. So it need to use raw spinlock instead of normal spinlock. This patch fixes it. Signed-off-by: Huang Ying Signed-off-by: Len Brown diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c index 1211c03..5850d32 100644 --- a/drivers/acpi/apei/erst.c +++ b/drivers/acpi/apei/erst.c @@ -86,7 +86,7 @@ static struct erst_erange { * It is used to provide exclusive accessing for ERST Error Log * Address Range too. */ -static DEFINE_SPINLOCK(erst_lock); +static DEFINE_RAW_SPINLOCK(erst_lock); static inline int erst_errno(int command_status) { @@ -421,9 +421,9 @@ ssize_t erst_get_record_count(void) if (erst_disable) return -ENODEV; - spin_lock_irqsave(&erst_lock, flags); + raw_spin_lock_irqsave(&erst_lock, flags); count = __erst_get_record_count(); - spin_unlock_irqrestore(&erst_lock, flags); + raw_spin_unlock_irqrestore(&erst_lock, flags); return count; } @@ -456,9 +456,9 @@ int erst_get_next_record_id(u64 *record_id) if (erst_disable) return -ENODEV; - spin_lock_irqsave(&erst_lock, flags); + raw_spin_lock_irqsave(&erst_lock, flags); rc = __erst_get_next_record_id(record_id); - spin_unlock_irqrestore(&erst_lock, flags); + raw_spin_unlock_irqrestore(&erst_lock, flags); return rc; } @@ -624,17 +624,17 @@ int erst_write(const struct cper_record_header *record) return -EINVAL; if (erst_erange.attr & ERST_RANGE_NVRAM) { - if (!spin_trylock_irqsave(&erst_lock, flags)) + if (!raw_spin_trylock_irqsave(&erst_lock, flags)) return -EBUSY; rc = __erst_write_to_nvram(record); - spin_unlock_irqrestore(&erst_lock, flags); + raw_spin_unlock_irqrestore(&erst_lock, flags); return rc; } if (record->record_length > erst_erange.size) return -EINVAL; - if (!spin_trylock_irqsave(&erst_lock, flags)) + if (!raw_spin_trylock_irqsave(&erst_lock, flags)) return -EBUSY; memcpy(erst_erange.vaddr, record, record->record_length); rcd_erange = erst_erange.vaddr; @@ -642,7 +642,7 @@ int erst_write(const struct cper_record_header *record) memcpy(&rcd_erange->persistence_information, "ER", 2); rc = __erst_write_to_storage(0); - spin_unlock_irqrestore(&erst_lock, flags); + raw_spin_unlock_irqrestore(&erst_lock, flags); return rc; } @@ -696,9 +696,9 @@ ssize_t erst_read(u64 record_id, struct cper_record_header *record, if (erst_disable) return -ENODEV; - spin_lock_irqsave(&erst_lock, flags); + raw_spin_lock_irqsave(&erst_lock, flags); len = __erst_read(record_id, record, buflen); - spin_unlock_irqrestore(&erst_lock, flags); + raw_spin_unlock_irqrestore(&erst_lock, flags); return len; } EXPORT_SYMBOL_GPL(erst_read); @@ -719,20 +719,20 @@ ssize_t erst_read_next(struct cper_record_header *record, size_t buflen) if (erst_disable) return -ENODEV; - spin_lock_irqsave(&erst_lock, flags); + raw_spin_lock_irqsave(&erst_lock, flags); rc = __erst_get_next_record_id(&record_id); if (rc) { - spin_unlock_irqrestore(&erst_lock, flags); + raw_spin_unlock_irqrestore(&erst_lock, flags); return rc; } /* no more record */ if (record_id == APEI_ERST_INVALID_RECORD_ID) { - spin_unlock_irqrestore(&erst_lock, flags); + raw_spin_unlock_irqrestore(&erst_lock, flags); return 0; } len = __erst_read(record_id, record, buflen); - spin_unlock_irqrestore(&erst_lock, flags); + raw_spin_unlock_irqrestore(&erst_lock, flags); return len; } @@ -746,12 +746,12 @@ int erst_clear(u64 record_id) if (erst_disable) return -ENODEV; - spin_lock_irqsave(&erst_lock, flags); + raw_spin_lock_irqsave(&erst_lock, flags); if (erst_erange.attr & ERST_RANGE_NVRAM) rc = __erst_clear_from_nvram(record_id); else rc = __erst_clear_from_storage(record_id); - spin_unlock_irqrestore(&erst_lock, flags); + raw_spin_unlock_irqrestore(&erst_lock, flags); return rc; } -- cgit v0.10.2 From 32d47eeff05981bfb89a95747eb182bc12630d58 Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Wed, 8 Dec 2010 10:40:36 +0800 Subject: ACPI: fix a section mismatch WARNING: drivers/acpi/acpi.o(.text+0xeda): Section mismatch in reference from the function acpi_os_initialize1() to the function .init.text:set_osi_linux() The function acpi_os_initialize1() references the function __init set_osi_linux(). Signed-off-by: Zhang Rui Signed-off-by: Len Brown diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 966fedd..f7227e9 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -1530,7 +1530,7 @@ acpi_status __init acpi_os_initialize(void) return AE_OK; } -acpi_status acpi_os_initialize1(void) +acpi_status __init acpi_os_initialize1(void) { kacpid_wq = create_workqueue("kacpid"); kacpi_notify_wq = create_workqueue("kacpi_notify"); -- cgit v0.10.2 From b9047599695ae835252ba3d6a19eada98c19dc89 Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Wed, 8 Dec 2010 10:40:26 +0800 Subject: ACPI thermal: remove two unused functions MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When CONFIG_CPU_FREQ=n ... drivers/acpi/processor_thermal.c:159:12: warning: ‘acpi_thermal_cpufreq_increase’ defined but not used drivers/acpi/processor_thermal.c:163:12: warning: ‘acpi_thermal_cpufreq_decrease’ defined but not used Remove unused declaration of ‘acpi_thermal_cpufreq_increase’ and ‘acpi_thermal_cpufreq_decrease’ Signed-off-by: Zhang Rui Signed-off-by: Len Brown diff --git a/drivers/acpi/processor_thermal.c b/drivers/acpi/processor_thermal.c index fde49b9..79cb653 100644 --- a/drivers/acpi/processor_thermal.c +++ b/drivers/acpi/processor_thermal.c @@ -156,15 +156,6 @@ static int cpufreq_set_cur_state(unsigned int cpu, int state) return 0; } -static int acpi_thermal_cpufreq_increase(unsigned int cpu) -{ - return -ENODEV; -} -static int acpi_thermal_cpufreq_decrease(unsigned int cpu) -{ - return -ENODEV; -} - #endif int acpi_processor_get_limit_info(struct acpi_processor *pr) -- cgit v0.10.2 From 66c3ec4f1f70ee87833363166b594855631d7ba6 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Tue, 7 Dec 2010 15:05:49 +0000 Subject: ACPI/PNP: avoid section mismatch warning Signed-off-by: Jan Beulich Signed-off-by: Len Brown diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c index 2d73dfc..57313f4 100644 --- a/drivers/pnp/pnpacpi/core.c +++ b/drivers/pnp/pnpacpi/core.c @@ -180,7 +180,7 @@ struct pnp_protocol pnpacpi_protocol = { }; EXPORT_SYMBOL(pnpacpi_protocol); -static char *pnpacpi_get_id(struct acpi_device *device) +static char *__init pnpacpi_get_id(struct acpi_device *device) { struct acpi_hardware_id *id; -- cgit v0.10.2 From 091aad6af4ab29af693ced5d6970ceee9d5981c8 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Tue, 7 Dec 2010 14:52:25 +0000 Subject: ACPI: eliminate unused variable warning for !ACPI_SLEEP Signed-off-by: Jan Beulich Signed-off-by: Len Brown diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 721d93b..2182c55 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -27,8 +27,6 @@ static u8 sleep_states[ACPI_S_STATE_COUNT]; -static u32 acpi_target_sleep_state = ACPI_STATE_S0; - static void acpi_sleep_tts_switch(u32 acpi_state) { union acpi_object in_arg = { ACPI_TYPE_INTEGER }; @@ -81,6 +79,8 @@ static int acpi_sleep_prepare(u32 acpi_state) } #ifdef CONFIG_ACPI_SLEEP +static u32 acpi_target_sleep_state = ACPI_STATE_S0; + /* * The ACPI specification wants us to save NVS memory regions during hibernation * and to restore them during the subsequent resume. Windows does that also for -- cgit v0.10.2 From bec4f22a2dbd5a26079cbddbcadf38f8c7e5381f Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Tue, 7 Dec 2010 14:58:44 +0000 Subject: ACPI/HEST: adjust section selection Properly const-, __init-, and __read_mostly-annotate this code. Signed-off-by: Jan Beulich Signed-off-by: Len Brown diff --git a/drivers/acpi/apei/hest.c b/drivers/acpi/apei/hest.c index 1a3508a..daa7bc6 100644 --- a/drivers/acpi/apei/hest.c +++ b/drivers/acpi/apei/hest.c @@ -46,9 +46,9 @@ EXPORT_SYMBOL_GPL(hest_disable); /* HEST table parsing */ -static struct acpi_table_hest *hest_tab; +static struct acpi_table_hest *__read_mostly hest_tab; -static int hest_esrc_len_tab[ACPI_HEST_TYPE_RESERVED] = { +static const int hest_esrc_len_tab[ACPI_HEST_TYPE_RESERVED] = { [ACPI_HEST_TYPE_IA32_CHECK] = -1, /* need further calculation */ [ACPI_HEST_TYPE_IA32_CORRECTED_CHECK] = -1, [ACPI_HEST_TYPE_IA32_NMI] = sizeof(struct acpi_hest_ia_nmi), @@ -126,7 +126,7 @@ struct ghes_arr { unsigned int count; }; -static int hest_parse_ghes_count(struct acpi_hest_header *hest_hdr, void *data) +static int __init hest_parse_ghes_count(struct acpi_hest_header *hest_hdr, void *data) { int *count = data; @@ -135,7 +135,7 @@ static int hest_parse_ghes_count(struct acpi_hest_header *hest_hdr, void *data) return 0; } -static int hest_parse_ghes(struct acpi_hest_header *hest_hdr, void *data) +static int __init hest_parse_ghes(struct acpi_hest_header *hest_hdr, void *data) { struct platform_device *ghes_dev; struct ghes_arr *ghes_arr = data; @@ -165,7 +165,7 @@ err: return rc; } -static int hest_ghes_dev_register(unsigned int ghes_count) +static int __init hest_ghes_dev_register(unsigned int ghes_count) { int rc, i; struct ghes_arr ghes_arr; -- cgit v0.10.2 From 57a7872fa0f03e90be0fa224b9ea533f5b03ee4f Mon Sep 17 00:00:00 2001 From: Kevin Granade Date: Fri, 10 Dec 2010 23:04:02 -0800 Subject: Input: wacom - add another Bamboo Pen ID (0xd4) Add the features struct and device table entry to enable yet another version of Wacom Bamboo Pen (CTL460, Product ID 0xD4). Signed-off-by: Kevin Granade Acked-by: Ping Cheng Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index 4852b44..435b0af 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -1436,6 +1436,8 @@ static struct wacom_features wacom_features_0xD2 = { "Wacom Bamboo Craft", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT }; static struct wacom_features wacom_features_0xD3 = { "Wacom Bamboo 2FG 6x8", WACOM_PKGLEN_BBFUN, 21648, 13530, 1023, 63, BAMBOO_PT }; +static const struct wacom_features wacom_features_0xD4 = + { "Wacom Bamboo Pen", WACOM_PKGLEN_BBFUN, 14720, 9200, 255, 63, BAMBOO_PT }; static struct wacom_features wacom_features_0xD8 = { "Wacom Bamboo Comic 2FG", WACOM_PKGLEN_BBFUN, 21648, 13530, 1023, 63, BAMBOO_PT }; static struct wacom_features wacom_features_0xDA = @@ -1510,6 +1512,7 @@ const struct usb_device_id wacom_ids[] = { { USB_DEVICE_WACOM(0xD1) }, { USB_DEVICE_WACOM(0xD2) }, { USB_DEVICE_WACOM(0xD3) }, + { USB_DEVICE_WACOM(0xD4) }, { USB_DEVICE_WACOM(0xD8) }, { USB_DEVICE_WACOM(0xDA) }, { USB_DEVICE_WACOM(0xDB) }, -- cgit v0.10.2 From af0cdf4947818becfe209610b209315578645ab4 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Tue, 7 Dec 2010 19:16:02 +0100 Subject: firewire: ohci: fix regression with VIA VT6315, disable MSI "VIA Technologies, Inc. VT6315 Series Firewire Controller [1106:3403]" does not generate any interrupts if Message Signaled Interrupts were enabled. This is a regression since kernel 2.6.36 in which MSI support was added to firewire-ohci. Hence blacklist MSI on all VIA controllers. Reported-by: Robin Cook Signed-off-by: Stefan Richter Cc: # 2.6.36.y diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c index 84eb607..5697cf2 100644 --- a/drivers/firewire/ohci.c +++ b/drivers/firewire/ohci.c @@ -262,7 +262,8 @@ static const struct { {PCI_VENDOR_ID_AL, PCI_ANY_ID, QUIRK_CYCLE_TIMER}, {PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB38X_FW, QUIRK_NO_MSI}, {PCI_VENDOR_ID_NEC, PCI_ANY_ID, QUIRK_CYCLE_TIMER}, - {PCI_VENDOR_ID_VIA, PCI_ANY_ID, QUIRK_CYCLE_TIMER}, + {PCI_VENDOR_ID_VIA, PCI_ANY_ID, QUIRK_CYCLE_TIMER | + QUIRK_NO_MSI}, {PCI_VENDOR_ID_RICOH, PCI_ANY_ID, QUIRK_CYCLE_TIMER}, {PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_UNI_N_FW, QUIRK_BE_HEADERS}, }; -- cgit v0.10.2 From 9993e0fe0f5f29c69e79efcb271ffc9843002985 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Tue, 7 Dec 2010 20:32:40 +0100 Subject: firewire: ohci: fix regression with Agere FW643 rev 06, disable MSI Agere FW643 rev 06, listed as "11c1:5901 (rev 06) (prog-if 10 [OHCI])", produced SBP-2 I/O errors since kernel 2.6.36. Disabling MSI fixes it. Since MSI work on Agere FW643-E (same vendor and device ID, but rev 07), introduce a device revision field into firewire-ohci's quirks list so that different quirks can be defined for older and newer revisions. Reported-by: Jonathan Isom Signed-off-by: Stefan Richter Cc: # 2.6.36.y diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c index 5697cf2..e3c8b60 100644 --- a/drivers/firewire/ohci.c +++ b/drivers/firewire/ohci.c @@ -242,6 +242,7 @@ static inline struct fw_ohci *fw_ohci(struct fw_card *card) static char ohci_driver_name[] = KBUILD_MODNAME; +#define PCI_DEVICE_ID_AGERE_FW643 0x5901 #define PCI_DEVICE_ID_JMICRON_JMB38X_FW 0x2380 #define PCI_DEVICE_ID_TI_TSB12LV22 0x8009 @@ -253,19 +254,34 @@ static char ohci_driver_name[] = KBUILD_MODNAME; /* In case of multiple matches in ohci_quirks[], only the first one is used. */ static const struct { - unsigned short vendor, device, flags; + unsigned short vendor, device, revision, flags; } ohci_quirks[] = { - {PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_TSB12LV22, QUIRK_CYCLE_TIMER | - QUIRK_RESET_PACKET | - QUIRK_NO_1394A}, - {PCI_VENDOR_ID_TI, PCI_ANY_ID, QUIRK_RESET_PACKET}, - {PCI_VENDOR_ID_AL, PCI_ANY_ID, QUIRK_CYCLE_TIMER}, - {PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB38X_FW, QUIRK_NO_MSI}, - {PCI_VENDOR_ID_NEC, PCI_ANY_ID, QUIRK_CYCLE_TIMER}, - {PCI_VENDOR_ID_VIA, PCI_ANY_ID, QUIRK_CYCLE_TIMER | - QUIRK_NO_MSI}, - {PCI_VENDOR_ID_RICOH, PCI_ANY_ID, QUIRK_CYCLE_TIMER}, - {PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_UNI_N_FW, QUIRK_BE_HEADERS}, + {PCI_VENDOR_ID_AL, PCI_ANY_ID, PCI_ANY_ID, + QUIRK_CYCLE_TIMER}, + + {PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_UNI_N_FW, PCI_ANY_ID, + QUIRK_BE_HEADERS}, + + {PCI_VENDOR_ID_ATT, PCI_DEVICE_ID_AGERE_FW643, 6, + QUIRK_NO_MSI}, + + {PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB38X_FW, PCI_ANY_ID, + QUIRK_NO_MSI}, + + {PCI_VENDOR_ID_NEC, PCI_ANY_ID, PCI_ANY_ID, + QUIRK_CYCLE_TIMER}, + + {PCI_VENDOR_ID_RICOH, PCI_ANY_ID, PCI_ANY_ID, + QUIRK_CYCLE_TIMER}, + + {PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_TSB12LV22, PCI_ANY_ID, + QUIRK_CYCLE_TIMER | QUIRK_RESET_PACKET | QUIRK_NO_1394A}, + + {PCI_VENDOR_ID_TI, PCI_ANY_ID, PCI_ANY_ID, + QUIRK_RESET_PACKET}, + + {PCI_VENDOR_ID_VIA, PCI_ANY_ID, PCI_ANY_ID, + QUIRK_CYCLE_TIMER | QUIRK_NO_MSI}, }; /* This overrides anything that was found in ohci_quirks[]. */ @@ -2928,9 +2944,11 @@ static int __devinit pci_probe(struct pci_dev *dev, } for (i = 0; i < ARRAY_SIZE(ohci_quirks); i++) - if (ohci_quirks[i].vendor == dev->vendor && - (ohci_quirks[i].device == dev->device || - ohci_quirks[i].device == (unsigned short)PCI_ANY_ID)) { + if ((ohci_quirks[i].vendor == dev->vendor) && + (ohci_quirks[i].device == (unsigned short)PCI_ANY_ID || + ohci_quirks[i].device == dev->device) && + (ohci_quirks[i].revision == (unsigned short)PCI_ANY_ID || + ohci_quirks[i].revision >= dev->revision)) { ohci->quirks = ohci_quirks[i].flags; break; } -- cgit v0.10.2 From 4d7b6b5d247aa71ea27709b9eac1ba6e752fbe87 Mon Sep 17 00:00:00 2001 From: Ron Mercer Date: Sat, 11 Dec 2010 11:06:50 +0000 Subject: qlge: Fix deadlock when cancelling worker. Removing usage of rtnl_lock() to protect firmware interface registers. These registers are accessed in some worker threads and can create a deadlock if rtnl_lock is taken by upper layers while the worker is still pending. We remove rtnl_lock and use a driver mutex just while mailboxes are accessed. Signed-off-by: Ron Mercer Signed-off-by: David S. Miller diff --git a/drivers/net/qlge/qlge.h b/drivers/net/qlge/qlge.h index 2282139..9787dff 100644 --- a/drivers/net/qlge/qlge.h +++ b/drivers/net/qlge/qlge.h @@ -2083,6 +2083,7 @@ struct ql_adapter { u32 mailbox_in; u32 mailbox_out; struct mbox_params idc_mbc; + struct mutex mpi_mutex; int tx_ring_size; int rx_ring_size; diff --git a/drivers/net/qlge/qlge_main.c b/drivers/net/qlge/qlge_main.c index 528eaef..2555b1d 100644 --- a/drivers/net/qlge/qlge_main.c +++ b/drivers/net/qlge/qlge_main.c @@ -4629,6 +4629,7 @@ static int __devinit ql_init_device(struct pci_dev *pdev, INIT_DELAYED_WORK(&qdev->mpi_idc_work, ql_mpi_idc_work); INIT_DELAYED_WORK(&qdev->mpi_core_to_log, ql_mpi_core_to_log); init_completion(&qdev->ide_completion); + mutex_init(&qdev->mpi_mutex); if (!cards_found) { dev_info(&pdev->dev, "%s\n", DRV_STRING); diff --git a/drivers/net/qlge/qlge_mpi.c b/drivers/net/qlge/qlge_mpi.c index 0e7c7c7..a2e919b 100644 --- a/drivers/net/qlge/qlge_mpi.c +++ b/drivers/net/qlge/qlge_mpi.c @@ -534,6 +534,7 @@ static int ql_mailbox_command(struct ql_adapter *qdev, struct mbox_params *mbcp) int status; unsigned long count; + mutex_lock(&qdev->mpi_mutex); /* Begin polled mode for MPI */ ql_write32(qdev, INTR_MASK, (INTR_MASK_PI << 16)); @@ -603,6 +604,7 @@ done: end: /* End polled mode for MPI */ ql_write32(qdev, INTR_MASK, (INTR_MASK_PI << 16) | INTR_MASK_PI); + mutex_unlock(&qdev->mpi_mutex); return status; } @@ -1099,9 +1101,7 @@ int ql_wait_fifo_empty(struct ql_adapter *qdev) static int ql_set_port_cfg(struct ql_adapter *qdev) { int status; - rtnl_lock(); status = ql_mb_set_port_cfg(qdev); - rtnl_unlock(); if (status) return status; status = ql_idc_wait(qdev); @@ -1122,9 +1122,7 @@ void ql_mpi_port_cfg_work(struct work_struct *work) container_of(work, struct ql_adapter, mpi_port_cfg_work.work); int status; - rtnl_lock(); status = ql_mb_get_port_cfg(qdev); - rtnl_unlock(); if (status) { netif_err(qdev, drv, qdev->ndev, "Bug: Failed to get port config data.\n"); @@ -1167,7 +1165,6 @@ void ql_mpi_idc_work(struct work_struct *work) u32 aen; int timeout; - rtnl_lock(); aen = mbcp->mbox_out[1] >> 16; timeout = (mbcp->mbox_out[1] >> 8) & 0xf; @@ -1231,7 +1228,6 @@ void ql_mpi_idc_work(struct work_struct *work) } break; } - rtnl_unlock(); } void ql_mpi_work(struct work_struct *work) @@ -1242,7 +1238,7 @@ void ql_mpi_work(struct work_struct *work) struct mbox_params *mbcp = &mbc; int err = 0; - rtnl_lock(); + mutex_lock(&qdev->mpi_mutex); /* Begin polled mode for MPI */ ql_write32(qdev, INTR_MASK, (INTR_MASK_PI << 16)); @@ -1259,7 +1255,7 @@ void ql_mpi_work(struct work_struct *work) /* End polled mode for MPI */ ql_write32(qdev, INTR_MASK, (INTR_MASK_PI << 16) | INTR_MASK_PI); - rtnl_unlock(); + mutex_unlock(&qdev->mpi_mutex); ql_enable_completion_interrupt(qdev, 0); } -- cgit v0.10.2 From 099978b434d4924594516db540ccc50652e7cc94 Mon Sep 17 00:00:00 2001 From: Vladislav Zolotarov Date: Sun, 12 Dec 2010 04:11:45 +0000 Subject: bnx2x: LSO code was broken on BE platforms Make the LSO code work on BE platforms: parsing_data field of a parsing BD (PBD) for 57712 was improperly composed which made FW read wrong values for TCP header's length and offset and, as a result, the corresponding PCI device was performing bad DMA reads triggering EEH. Signed-off-by: Vladislav Zolotarov Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller diff --git a/drivers/net/bnx2x/bnx2x_cmn.c b/drivers/net/bnx2x/bnx2x_cmn.c index 94d5f59..0af361e 100644 --- a/drivers/net/bnx2x/bnx2x_cmn.c +++ b/drivers/net/bnx2x/bnx2x_cmn.c @@ -1782,15 +1782,15 @@ exit_lbl: } #endif -static inline void bnx2x_set_pbd_gso_e2(struct sk_buff *skb, - struct eth_tx_parse_bd_e2 *pbd, - u32 xmit_type) +static inline void bnx2x_set_pbd_gso_e2(struct sk_buff *skb, u32 *parsing_data, + u32 xmit_type) { - pbd->parsing_data |= cpu_to_le16(skb_shinfo(skb)->gso_size) << - ETH_TX_PARSE_BD_E2_LSO_MSS_SHIFT; + *parsing_data |= (skb_shinfo(skb)->gso_size << + ETH_TX_PARSE_BD_E2_LSO_MSS_SHIFT) & + ETH_TX_PARSE_BD_E2_LSO_MSS; if ((xmit_type & XMIT_GSO_V6) && (ipv6_hdr(skb)->nexthdr == NEXTHDR_IPV6)) - pbd->parsing_data |= ETH_TX_PARSE_BD_E2_IPV6_WITH_EXT_HDR; + *parsing_data |= ETH_TX_PARSE_BD_E2_IPV6_WITH_EXT_HDR; } /** @@ -1835,15 +1835,15 @@ static inline void bnx2x_set_pbd_gso(struct sk_buff *skb, * @return header len */ static inline u8 bnx2x_set_pbd_csum_e2(struct bnx2x *bp, struct sk_buff *skb, - struct eth_tx_parse_bd_e2 *pbd, - u32 xmit_type) + u32 *parsing_data, u32 xmit_type) { - pbd->parsing_data |= cpu_to_le16(tcp_hdrlen(skb)/4) << - ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW_SHIFT; + *parsing_data |= ((tcp_hdrlen(skb)/4) << + ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW_SHIFT) & + ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW; - pbd->parsing_data |= cpu_to_le16(((unsigned char *)tcp_hdr(skb) - - skb->data) / 2) << - ETH_TX_PARSE_BD_E2_TCP_HDR_START_OFFSET_W_SHIFT; + *parsing_data |= ((((u8 *)tcp_hdr(skb) - skb->data) / 2) << + ETH_TX_PARSE_BD_E2_TCP_HDR_START_OFFSET_W_SHIFT) & + ETH_TX_PARSE_BD_E2_TCP_HDR_START_OFFSET_W; return skb_transport_header(skb) + tcp_hdrlen(skb) - skb->data; } @@ -1912,6 +1912,7 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) struct eth_tx_bd *tx_data_bd, *total_pkt_bd = NULL; struct eth_tx_parse_bd_e1x *pbd_e1x = NULL; struct eth_tx_parse_bd_e2 *pbd_e2 = NULL; + u32 pbd_e2_parsing_data = 0; u16 pkt_prod, bd_prod; int nbd, fp_index; dma_addr_t mapping; @@ -2033,8 +2034,9 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) memset(pbd_e2, 0, sizeof(struct eth_tx_parse_bd_e2)); /* Set PBD in checksum offload case */ if (xmit_type & XMIT_CSUM) - hlen = bnx2x_set_pbd_csum_e2(bp, - skb, pbd_e2, xmit_type); + hlen = bnx2x_set_pbd_csum_e2(bp, skb, + &pbd_e2_parsing_data, + xmit_type); } else { pbd_e1x = &fp->tx_desc_ring[bd_prod].parse_bd_e1x; memset(pbd_e1x, 0, sizeof(struct eth_tx_parse_bd_e1x)); @@ -2076,10 +2078,18 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) bd_prod = bnx2x_tx_split(bp, fp, tx_buf, &tx_start_bd, hlen, bd_prod, ++nbd); if (CHIP_IS_E2(bp)) - bnx2x_set_pbd_gso_e2(skb, pbd_e2, xmit_type); + bnx2x_set_pbd_gso_e2(skb, &pbd_e2_parsing_data, + xmit_type); else bnx2x_set_pbd_gso(skb, pbd_e1x, xmit_type); } + + /* Set the PBD's parsing_data field if not zero + * (for the chips newer than 57711). + */ + if (pbd_e2_parsing_data) + pbd_e2->parsing_data = cpu_to_le32(pbd_e2_parsing_data); + tx_data_bd = (struct eth_tx_bd *)tx_start_bd; /* Handle fragmented skb */ -- cgit v0.10.2 From 372e43eb2fc34001250e27d63f99c20e46ea58a7 Mon Sep 17 00:00:00 2001 From: Vladislav Zolotarov Date: Sun, 12 Dec 2010 04:12:12 +0000 Subject: bnx2x: Fixed a compilation warning bnx2x_src_init_t2() is used only when BCM_CNIC is defined. So, to avoid a compilation warning, we won't define it unless BCM_CNIC is defined. Signed-off-by: Vladislav Zolotarov Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller diff --git a/drivers/net/bnx2x/bnx2x_init_ops.h b/drivers/net/bnx2x/bnx2x_init_ops.h index a306b0e..66df29f 100644 --- a/drivers/net/bnx2x/bnx2x_init_ops.h +++ b/drivers/net/bnx2x/bnx2x_init_ops.h @@ -838,7 +838,7 @@ static void bnx2x_qm_init_ptr_table(struct bnx2x *bp, int qm_cid_count, /**************************************************************************** * SRC initializations ****************************************************************************/ - +#ifdef BCM_CNIC /* called during init func stage */ static void bnx2x_src_init_t2(struct bnx2x *bp, struct src_ent *t2, dma_addr_t t2_mapping, int src_cid_count) @@ -862,5 +862,5 @@ static void bnx2x_src_init_t2(struct bnx2x *bp, struct src_ent *t2, U64_HI((u64)t2_mapping + (src_cid_count-1) * sizeof(struct src_ent))); } - +#endif #endif /* BNX2X_INIT_OPS_H */ -- cgit v0.10.2 From 9f5449611c9d6d7bdcae8020a197d8b4d9b6443c Mon Sep 17 00:00:00 2001 From: Vladislav Zolotarov Date: Sun, 12 Dec 2010 04:12:29 +0000 Subject: bnx2x: Advance a version number to 1.60.01-0 Signed-off-by: Vladislav Zolotarov Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller diff --git a/drivers/net/bnx2x/bnx2x.h b/drivers/net/bnx2x/bnx2x.h index 863e73a..d255428 100644 --- a/drivers/net/bnx2x/bnx2x.h +++ b/drivers/net/bnx2x/bnx2x.h @@ -20,8 +20,8 @@ * (you will need to reboot afterwards) */ /* #define BNX2X_STOP_ON_ERROR */ -#define DRV_MODULE_VERSION "1.60.00-4" -#define DRV_MODULE_RELDATE "2010/11/01" +#define DRV_MODULE_VERSION "1.60.01-0" +#define DRV_MODULE_RELDATE "2010/11/12" #define BNX2X_BC_VER 0x040200 #define BNX2X_MULTI_QUEUE -- cgit v0.10.2 From eaff9453d3e2b63969af93e9d42a85e803060121 Mon Sep 17 00:00:00 2001 From: Krzysztof Halasa Date: Sun, 12 Dec 2010 12:06:47 +0000 Subject: WAN: Fix a TX IRQ causing BUG() in PC300 and PCI200SYN drivers. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We must not wake the TX queue without free TX descriptors. sca_xmit() expects at least one free descriptor and BUGs otherwise. Problem reported and fix tested by Bernie Innocenti and Ward Vandewege. Signed-off-by: Krzysztof Hałasa Signed-off-by: David S. Miller diff --git a/drivers/net/wan/hd64572.c b/drivers/net/wan/hd64572.c index ea476cb..e305274 100644 --- a/drivers/net/wan/hd64572.c +++ b/drivers/net/wan/hd64572.c @@ -293,6 +293,7 @@ static inline void sca_tx_done(port_t *port) struct net_device *dev = port->netdev; card_t* card = port->card; u8 stat; + unsigned count = 0; spin_lock(&port->lock); @@ -316,10 +317,12 @@ static inline void sca_tx_done(port_t *port) dev->stats.tx_bytes += readw(&desc->len); } writeb(0, &desc->stat); /* Free descriptor */ + count++; port->txlast = (port->txlast + 1) % card->tx_ring_buffers; } - netif_wake_queue(dev); + if (count) + netif_wake_queue(dev); spin_unlock(&port->lock); } -- cgit v0.10.2 From 2a27a03d3a891e87ca33d27a858b4db734a4cbab Mon Sep 17 00:00:00 2001 From: Andrej Ota Date: Sun, 12 Dec 2010 15:06:16 -0800 Subject: pppoe.c: Fix kernel panic caused by __pppoe_xmit __pppoe_xmit function return value was invalid resulting in additional call to kfree_skb on already freed skb. This resulted in memory corruption and consequent kernel panic after PPPoE peer terminated the link. This fixes commit 55c95e738da85373965cb03b4f975d0fd559865b. Reported-by: Gorik Van Steenberge Reported-by: Daniel Kenzelmann Reported-by: Denys Fedoryshchenko Reported-by: Pawel Staszewski Diagnosed-by: Andrej Ota Diagnosed-by: Eric Dumazet Tested-by: Denys Fedoryshchenko Tested-by: Pawel Staszewski Signed-off-by: Jarek Poplawski Signed-off-by: Andrej Ota Signed-off-by: David S. Miller diff --git a/drivers/net/pppoe.c b/drivers/net/pppoe.c index d72fb05..78c0e3c 100644 --- a/drivers/net/pppoe.c +++ b/drivers/net/pppoe.c @@ -948,7 +948,7 @@ static int __pppoe_xmit(struct sock *sk, struct sk_buff *skb) abort: kfree_skb(skb); - return 0; + return 1; } /************************************************************************ -- cgit v0.10.2 From f91e2c3bd427239c198351f44814dd39db91afe0 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Tue, 7 Dec 2010 16:52:04 +0100 Subject: ARM: 6527/1: Use CTR instead of CCSIDR for the D-cache line size on ARMv7 The current implementation of the dcache_line_size macro reads the L1 cache size from the CCSIDR register. This, however, is not guaranteed to be the smallest cache line in the cache hierarchy. The patch changes to the macro to use the more architecturally correct CTR register. Reported-by: Kevin Sapp Signed-off-by: Catalin Marinas Signed-off-by: Russell King diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S index 7d63bea..321555b 100644 --- a/arch/arm/mm/proc-macros.S +++ b/arch/arm/mm/proc-macros.S @@ -61,14 +61,14 @@ .endm /* - * cache_line_size - get the cache line size from the CSIDR register - * (available on ARMv7+). It assumes that the CSSR register was configured - * to access the L1 data cache CSIDR. + * dcache_line_size - get the minimum D-cache line size from the CTR register + * on ARMv7. */ .macro dcache_line_size, reg, tmp - mrc p15, 1, \tmp, c0, c0, 0 @ read CSIDR - and \tmp, \tmp, #7 @ cache line size encoding - mov \reg, #16 @ size offset + mrc p15, 0, \tmp, c0, c0, 1 @ read ctr + lsr \tmp, \tmp, #16 + and \tmp, \tmp, #0xf @ cache line size encoding + mov \reg, #4 @ bytes per word mov \reg, \reg, lsl \tmp @ actual cache line size .endm -- cgit v0.10.2 From da30e0ac0f9a521f0cfec8145ddd1ad131f66d61 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Tue, 7 Dec 2010 16:56:29 +0100 Subject: ARM: 6528/1: Use CTR for the I-cache line size on ARMv7 The current implementation of the v7_coherent_*_range function assumes that the D and I cache lines have the same size, which is incorrect architecturally. This patch adds the icache_line_size macro which reads the CTR register. The main loop in v7_coherent_*_range is split in two independent loops or the D and I caches. This also has the performance advantage that the DSB is moved outside the main loop. Reported-by: Kevin Sapp Signed-off-by: Catalin Marinas Signed-off-by: Russell King diff --git a/arch/arm/mm/cache-v7.S b/arch/arm/mm/cache-v7.S index a3ebf7a..6136e68 100644 --- a/arch/arm/mm/cache-v7.S +++ b/arch/arm/mm/cache-v7.S @@ -173,15 +173,22 @@ ENTRY(v7_coherent_user_range) UNWIND(.fnstart ) dcache_line_size r2, r3 sub r3, r2, #1 - bic r0, r0, r3 + bic r12, r0, r3 1: - USER( mcr p15, 0, r0, c7, c11, 1 ) @ clean D line to the point of unification + USER( mcr p15, 0, r12, c7, c11, 1 ) @ clean D line to the point of unification + add r12, r12, r2 + cmp r12, r1 + blo 1b dsb - USER( mcr p15, 0, r0, c7, c5, 1 ) @ invalidate I line - add r0, r0, r2 + icache_line_size r2, r3 + sub r3, r2, #1 + bic r12, r0, r3 2: - cmp r0, r1 - blo 1b + USER( mcr p15, 0, r12, c7, c5, 1 ) @ invalidate I line + add r12, r12, r2 + cmp r12, r1 + blo 2b +3: mov r0, #0 ALT_SMP(mcr p15, 0, r0, c7, c1, 6) @ invalidate BTB Inner Shareable ALT_UP(mcr p15, 0, r0, c7, c5, 6) @ invalidate BTB @@ -194,10 +201,10 @@ ENTRY(v7_coherent_user_range) * isn't mapped, just try the next page. */ 9001: - mov r0, r0, lsr #12 - mov r0, r0, lsl #12 - add r0, r0, #4096 - b 2b + mov r12, r12, lsr #12 + mov r12, r12, lsl #12 + add r12, r12, #4096 + b 3b UNWIND(.fnend ) ENDPROC(v7_coherent_kern_range) ENDPROC(v7_coherent_user_range) diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S index 321555b..b795afd 100644 --- a/arch/arm/mm/proc-macros.S +++ b/arch/arm/mm/proc-macros.S @@ -72,6 +72,16 @@ mov \reg, \reg, lsl \tmp @ actual cache line size .endm +/* + * icache_line_size - get the minimum I-cache line size from the CTR register + * on ARMv7. + */ + .macro icache_line_size, reg, tmp + mrc p15, 0, \tmp, c0, c0, 1 @ read ctr + and \tmp, \tmp, #0xf @ cache line size encoding + mov \reg, #4 @ bytes per word + mov \reg, \reg, lsl \tmp @ actual cache line size + .endm /* * Sanity check the PTE configuration for the code below - which makes -- cgit v0.10.2 From 440e2e4759805437f89f7eda78de72cb46729d04 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sun, 12 Dec 2010 23:24:28 +0000 Subject: ARM: Update mach-types Signed-off-by: Russell King diff --git a/arch/arm/tools/mach-types b/arch/arm/tools/mach-types index 55590a4..2fea897 100644 --- a/arch/arm/tools/mach-types +++ b/arch/arm/tools/mach-types @@ -12,7 +12,7 @@ # # http://www.arm.linux.org.uk/developer/machines/?action=new # -# Last update: Thu Sep 9 22:43:01 2010 +# Last update: Sun Dec 12 23:24:27 2010 # # machine_is_xxx CONFIG_xxxx MACH_TYPE_xxx number # @@ -2321,7 +2321,7 @@ mx31txtr MACH_MX31TXTR MX31TXTR 2332 u380 MACH_U380 U380 2333 oamp3_hualu MACH_HUALU_BOARD HUALU_BOARD 2334 npcmx50 MACH_NPCMX50 NPCMX50 2335 -mx51_lange51 MACH_MX51_LANGE51 MX51_LANGE51 2336 +mx51_efikamx MACH_MX51_EFIKAMX MX51_EFIKAMX 2336 mx51_lange52 MACH_MX51_LANGE52 MX51_LANGE52 2337 riom MACH_RIOM RIOM 2338 comcas MACH_COMCAS COMCAS 2339 @@ -2355,7 +2355,7 @@ at91sam9263cs MACH_AT91SAM9263CS AT91SAM9263CS 2366 csb732 MACH_CSB732 CSB732 2367 u8500 MACH_U8500 U8500 2368 huqiu MACH_HUQIU HUQIU 2369 -mx51_kunlun MACH_MX51_KUNLUN MX51_KUNLUN 2370 +mx51_efikasb MACH_MX51_EFIKASB MX51_EFIKASB 2370 pmt1g MACH_PMT1G PMT1G 2371 htcelf MACH_HTCELF HTCELF 2372 armadillo420 MACH_ARMADILLO420 ARMADILLO420 2373 @@ -2971,7 +2971,7 @@ premierwave_en MACH_PREMIERWAVE_EN PREMIERWAVE_EN 2985 wasabi MACH_WASABI WASABI 2986 vivow MACH_VIVOW VIVOW 2987 mx50_rdp MACH_MX50_RDP MX50_RDP 2988 -universal MACH_UNIVERSAL UNIVERSAL 2989 +universal_c210 MACH_UNIVERSAL_C210 UNIVERSAL_C210 2989 real6410 MACH_REAL6410 REAL6410 2990 spx_sakura MACH_SPX_SAKURA SPX_SAKURA 2991 ij3k_2440 MACH_IJ3K_2440 IJ3K_2440 2992 @@ -3044,3 +3044,178 @@ harvest_desoto MACH_HARVEST_DESOTO HARVEST_DESOTO 3059 msm8x60_qrdc MACH_MSM8X60_QRDC MSM8X60_QRDC 3060 spear900 MACH_SPEAR900 SPEAR900 3061 pcontrol_g20 MACH_PCONTROL_G20 PCONTROL_G20 3062 +rdstor MACH_RDSTOR RDSTOR 3063 +usdloader MACH_USDLOADER USDLOADER 3064 +tsoploader MACH_TSOPLOADER TSOPLOADER 3065 +kronos MACH_KRONOS KRONOS 3066 +ffcore MACH_FFCORE FFCORE 3067 +mone MACH_MONE MONE 3068 +unit2s MACH_UNIT2S UNIT2S 3069 +acer_a5 MACH_ACER_A5 ACER_A5 3070 +etherpro_isp MACH_ETHERPRO_ISP ETHERPRO_ISP 3071 +stretchs7000 MACH_STRETCHS7000 STRETCHS7000 3072 +p87_smartsim MACH_P87_SMARTSIM P87_SMARTSIM 3073 +tulip MACH_TULIP TULIP 3074 +sunflower MACH_SUNFLOWER SUNFLOWER 3075 +rib MACH_RIB RIB 3076 +clod MACH_CLOD CLOD 3077 +rump MACH_RUMP RUMP 3078 +tenderloin MACH_TENDERLOIN TENDERLOIN 3079 +shortloin MACH_SHORTLOIN SHORTLOIN 3080 +crespo MACH_CRESPO CRESPO 3081 +antares MACH_ANTARES ANTARES 3082 +wb40n MACH_WB40N WB40N 3083 +herring MACH_HERRING HERRING 3084 +naxy400 MACH_NAXY400 NAXY400 3085 +naxy1200 MACH_NAXY1200 NAXY1200 3086 +vpr200 MACH_VPR200 VPR200 3087 +bug20 MACH_BUG20 BUG20 3088 +goflexnet MACH_GOFLEXNET GOFLEXNET 3089 +torbreck MACH_TORBRECK TORBRECK 3090 +saarb_mg1 MACH_SAARB_MG1 SAARB_MG1 3091 +callisto MACH_CALLISTO CALLISTO 3092 +multhsu MACH_MULTHSU MULTHSU 3093 +saluda MACH_SALUDA SALUDA 3094 +pemp_omap3_apollo MACH_PEMP_OMAP3_APOLLO PEMP_OMAP3_APOLLO 3095 +vc0718 MACH_VC0718 VC0718 3096 +mvblx MACH_MVBLX MVBLX 3097 +inhand_apeiron MACH_INHAND_APEIRON INHAND_APEIRON 3098 +inhand_fury MACH_INHAND_FURY INHAND_FURY 3099 +inhand_siren MACH_INHAND_SIREN INHAND_SIREN 3100 +hdnvp MACH_HDNVP HDNVP 3101 +softwinner MACH_SOFTWINNER SOFTWINNER 3102 +prima2_evb MACH_PRIMA2_EVB PRIMA2_EVB 3103 +nas6210 MACH_NAS6210 NAS6210 3104 +unisdev MACH_UNISDEV UNISDEV 3105 +sbca11 MACH_SBCA11 SBCA11 3106 +saga MACH_SAGA SAGA 3107 +ns_k330 MACH_NS_K330 NS_K330 3108 +tanna MACH_TANNA TANNA 3109 +imate8502 MACH_IMATE8502 IMATE8502 3110 +aspen MACH_ASPEN ASPEN 3111 +daintree_cwac MACH_DAINTREE_CWAC DAINTREE_CWAC 3112 +zmx25 MACH_ZMX25 ZMX25 3113 +maple1 MACH_MAPLE1 MAPLE1 3114 +qsd8x72_surf MACH_QSD8X72_SURF QSD8X72_SURF 3115 +qsd8x72_ffa MACH_QSD8X72_FFA QSD8X72_FFA 3116 +abilene MACH_ABILENE ABILENE 3117 +eigen_ttr MACH_EIGEN_TTR EIGEN_TTR 3118 +iomega_ix2_200 MACH_IOMEGA_IX2_200 IOMEGA_IX2_200 3119 +coretec_vcx7400 MACH_CORETEC_VCX7400 CORETEC_VCX7400 3120 +santiago MACH_SANTIAGO SANTIAGO 3121 +mx257sol MACH_MX257SOL MX257SOL 3122 +strasbourg MACH_STRASBOURG STRASBOURG 3123 +msm8x60_fluid MACH_MSM8X60_FLUID MSM8X60_FLUID 3124 +smartqv5 MACH_SMARTQV5 SMARTQV5 3125 +smartqv3 MACH_SMARTQV3 SMARTQV3 3126 +smartqv7 MACH_SMARTQV7 SMARTQV7 3127 +paz00 MACH_PAZ00 PAZ00 3128 +acmenetusfoxg20 MACH_ACMENETUSFOXG20 ACMENETUSFOXG20 3129 +htcwillow MACH_HTCWILLOW HTCWILLOW 3130 +fwbd_0404 MACH_FWBD_0404 FWBD_0404 3131 +hdgu MACH_HDGU HDGU 3132 +pyramid MACH_PYRAMID PYRAMID 3133 +epiphan MACH_EPIPHAN EPIPHAN 3134 +omap_bender MACH_OMAP_BENDER OMAP_BENDER 3135 +gurnard MACH_GURNARD GURNARD 3136 +gtl_it5100 MACH_GTL_IT5100 GTL_IT5100 3137 +bcm2708 MACH_BCM2708 BCM2708 3138 +mx51_ggc MACH_MX51_GGC MX51_GGC 3139 +sharespace MACH_SHARESPACE SHARESPACE 3140 +haba_knx_explorer MACH_HABA_KNX_EXPLORER HABA_KNX_EXPLORER 3141 +simtec_kirkmod MACH_SIMTEC_KIRKMOD SIMTEC_KIRKMOD 3142 +crux MACH_CRUX CRUX 3143 +mx51_bravo MACH_MX51_BRAVO MX51_BRAVO 3144 +charon MACH_CHARON CHARON 3145 +picocom3 MACH_PICOCOM3 PICOCOM3 3146 +picocom4 MACH_PICOCOM4 PICOCOM4 3147 +serrano MACH_SERRANO SERRANO 3148 +doubleshot MACH_DOUBLESHOT DOUBLESHOT 3149 +evsy MACH_EVSY EVSY 3150 +huashan MACH_HUASHAN HUASHAN 3151 +lausanne MACH_LAUSANNE LAUSANNE 3152 +emerald MACH_EMERALD EMERALD 3153 +tqma35 MACH_TQMA35 TQMA35 3154 +marvel MACH_MARVEL MARVEL 3155 +manuae MACH_MANUAE MANUAE 3156 +chacha MACH_CHACHA CHACHA 3157 +lemon MACH_LEMON LEMON 3158 +csc MACH_CSC CSC 3159 +gira_knxip_router MACH_GIRA_KNXIP_ROUTER GIRA_KNXIP_ROUTER 3160 +t20 MACH_T20 T20 3161 +hdmini MACH_HDMINI HDMINI 3162 +sciphone_g2 MACH_SCIPHONE_G2 SCIPHONE_G2 3163 +express MACH_EXPRESS EXPRESS 3164 +express_kt MACH_EXPRESS_KT EXPRESS_KT 3165 +maximasp MACH_MAXIMASP MAXIMASP 3166 +nitrogen_imx51 MACH_NITROGEN_IMX51 NITROGEN_IMX51 3167 +nitrogen_imx53 MACH_NITROGEN_IMX53 NITROGEN_IMX53 3168 +sunfire MACH_SUNFIRE SUNFIRE 3169 +arowana MACH_AROWANA AROWANA 3170 +tegra_daytona MACH_TEGRA_DAYTONA TEGRA_DAYTONA 3171 +tegra_swordfish MACH_TEGRA_SWORDFISH TEGRA_SWORDFISH 3172 +edison MACH_EDISON EDISON 3173 +svp8500v1 MACH_SVP8500V1 SVP8500V1 3174 +svp8500v2 MACH_SVP8500V2 SVP8500V2 3175 +svp5500 MACH_SVP5500 SVP5500 3176 +b5500 MACH_B5500 B5500 3177 +s5500 MACH_S5500 S5500 3178 +icon MACH_ICON ICON 3179 +elephant MACH_ELEPHANT ELEPHANT 3180 +msm8x60_fusion MACH_MSM8X60_FUSION MSM8X60_FUSION 3181 +shooter MACH_SHOOTER SHOOTER 3182 +spade_lte MACH_SPADE_LTE SPADE_LTE 3183 +philhwani MACH_PHILHWANI PHILHWANI 3184 +gsncomm MACH_GSNCOMM GSNCOMM 3185 +strasbourg_a2 MACH_STRASBOURG_A2 STRASBOURG_A2 3186 +mmm MACH_MMM MMM 3187 +davinci_dm365_bv MACH_DAVINCI_DM365_BV DAVINCI_DM365_BV 3188 +ag5evm MACH_AG5EVM AG5EVM 3189 +sc575plc MACH_SC575PLC SC575PLC 3190 +sc575hmi MACH_SC575IPC SC575IPC 3191 +omap3_tdm3730 MACH_OMAP3_TDM3730 OMAP3_TDM3730 3192 +g7 MACH_G7 G7 3193 +top9000_eval MACH_TOP9000_EVAL TOP9000_EVAL 3194 +top9000_su MACH_TOP9000_SU TOP9000_SU 3195 +utm300 MACH_UTM300 UTM300 3196 +tsunagi MACH_TSUNAGI TSUNAGI 3197 +ts75xx MACH_TS75XX TS75XX 3198 +msm8x60_fusn_ffa MACH_MSM8X60_FUSN_FFA MSM8X60_FUSN_FFA 3199 +ts47xx MACH_TS47XX TS47XX 3200 +da850_k5 MACH_DA850_K5 DA850_K5 3201 +ax502 MACH_AX502 AX502 3202 +igep0032 MACH_IGEP0032 IGEP0032 3203 +antero MACH_ANTERO ANTERO 3204 +synergy MACH_SYNERGY SYNERGY 3205 +ics_if_voip MACH_ICS_IF_VOIP ICS_IF_VOIP 3206 +wlf_cragg_6410 MACH_WLF_CRAGG_6410 WLF_CRAGG_6410 3207 +punica MACH_PUNICA PUNICA 3208 +sbc_nt250 MACH_SBC_NT250 SBC_NT250 3209 +mx27_wmultra MACH_MX27_WMULTRA MX27_WMULTRA 3210 +mackerel MACH_MACKEREL MACKEREL 3211 +fa9x27 MACH_FA9X27 FA9X27 3213 +ns2816tb MACH_NS2816TB NS2816TB 3214 +ns2816_ntpad MACH_NS2816_NTPAD NS2816_NTPAD 3215 +ns2816_ntnb MACH_NS2816_NTNB NS2816_NTNB 3216 +kaen MACH_KAEN KAEN 3217 +nv1000 MACH_NV1000 NV1000 3218 +nuc950ts MACH_NUC950TS NUC950TS 3219 +nokia_rm680 MACH_NOKIA_RM680 NOKIA_RM680 3220 +ast2200 MACH_AST2200 AST2200 3221 +lead MACH_LEAD LEAD 3222 +unino1 MACH_UNINO1 UNINO1 3223 +greeco MACH_GREECO GREECO 3224 +verdi MACH_VERDI VERDI 3225 +dm6446_adbox MACH_DM6446_ADBOX DM6446_ADBOX 3226 +quad_salsa MACH_QUAD_SALSA QUAD_SALSA 3227 +abb_gma_1_1 MACH_ABB_GMA_1_1 ABB_GMA_1_1 3228 +svcid MACH_SVCID SVCID 3229 +msm8960_sim MACH_MSM8960_SIM MSM8960_SIM 3230 +msm8960_rumi3 MACH_MSM8960_RUMI3 MSM8960_RUMI3 3231 +icon_g MACH_ICON_G ICON_G 3232 +mb3 MACH_MB3 MB3 3233 +gsia18s MACH_GSIA18S GSIA18S 3234 +pivicc MACH_PIVICC PIVICC 3235 +pcm048 MACH_PCM048 PCM048 3236 +dds MACH_DDS DDS 3237 +chalten_xa1 MACH_CHALTEN_XA1 CHALTEN_XA1 3238 -- cgit v0.10.2 From 80fbf8382e110656ea67327300f16cfd2488a9bf Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Mon, 13 Dec 2010 14:59:51 +0900 Subject: sh: Enable deprecated IRQ chip APIs for MFD and GPIOLIB drivers. There are still quite a number of MFD and GPIO expander drivers that are using the old irq_chip APIs that haven't had a chance to update during the .37 cycle, resulting in allyes/modconfig errors on some configurations. Mark Brown has done most of the legwork to get these fixed up in .38, so this should just be a .37 stop-gap that we can drop at the end of the .38 merge window. Reported-by: Mark Brown Signed-off-by: Paul Mundt diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 7f217b3..2e9d78d 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -22,7 +22,8 @@ config SUPERH select HAVE_SPARSE_IRQ select RTC_LIB select GENERIC_ATOMIC64 - select GENERIC_HARDIRQS_NO_DEPRECATED + # Support the deprecated APIs until MFD and GPIOLIB catch up. + select GENERIC_HARDIRQS_NO_DEPRECATED if !MFD_SUPPORT && !GPIOLIB help The SuperH is a RISC processor targeted for use in embedded systems and consumer electronics; it was also used in the Sega Dreamcast -- cgit v0.10.2 From 0a6bf658c3b9d1d0e520d320b6392c8680c2e381 Mon Sep 17 00:00:00 2001 From: "Ira W. Snyder" Date: Mon, 13 Dec 2010 11:42:30 -0500 Subject: hwmon: (ltc4215) make sysfs file match the alarm cause The ltc4215 driver used the chip's "power good" status bit to provide the power1_alarm file. This is wrong: the chip is really reporting the status of one of the monitored voltages. Change the sysfs file from power1_alarm to in2_min_alarm instead. This matches the voltage that the chip is raising an alarm for. Signed-off-by: Ira W. Snyder Signed-off-by: Guenter Roeck diff --git a/drivers/hwmon/ltc4215.c b/drivers/hwmon/ltc4215.c index 00d975e..c7e6d8e 100644 --- a/drivers/hwmon/ltc4215.c +++ b/drivers/hwmon/ltc4215.c @@ -205,7 +205,6 @@ LTC4215_ALARM(curr1_max_alarm, (1 << 2), LTC4215_STATUS); /* Power (virtual) */ LTC4215_POWER(power1_input); -LTC4215_ALARM(power1_alarm, (1 << 3), LTC4215_STATUS); /* Input Voltage */ LTC4215_VOLTAGE(in1_input, LTC4215_ADIN); @@ -214,6 +213,7 @@ LTC4215_ALARM(in1_min_alarm, (1 << 1), LTC4215_STATUS); /* Output Voltage */ LTC4215_VOLTAGE(in2_input, LTC4215_SOURCE); +LTC4215_ALARM(in2_min_alarm, (1 << 3), LTC4215_STATUS); /* Finally, construct an array of pointers to members of the above objects, * as required for sysfs_create_group() @@ -223,13 +223,13 @@ static struct attribute *ltc4215_attributes[] = { &sensor_dev_attr_curr1_max_alarm.dev_attr.attr, &sensor_dev_attr_power1_input.dev_attr.attr, - &sensor_dev_attr_power1_alarm.dev_attr.attr, &sensor_dev_attr_in1_input.dev_attr.attr, &sensor_dev_attr_in1_max_alarm.dev_attr.attr, &sensor_dev_attr_in1_min_alarm.dev_attr.attr, &sensor_dev_attr_in2_input.dev_attr.attr, + &sensor_dev_attr_in2_min_alarm.dev_attr.attr, NULL, }; -- cgit v0.10.2 From 68433b73b104bff388aac376631d32abbbd872b0 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Mon, 13 Dec 2010 14:47:58 -0500 Subject: Btrfs: EIO when we fail to read tree roots If we just get a plain IO error when we read tree roots, the code wasn't properly sending that error up the chain. This allowed mounts to continue when they should failed, and allowed operations on partially setup root structs. The end result was usually oopsen on spinlocks that hadn't been spun up correctly. Signed-off-by: Chris Mason diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index b803c26..a5d2249 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -1007,7 +1007,10 @@ static int find_and_setup_root(struct btrfs_root *tree_root, blocksize = btrfs_level_size(root, btrfs_root_level(&root->root_item)); root->node = read_tree_block(root, btrfs_root_bytenr(&root->root_item), blocksize, generation); - BUG_ON(!root->node); + if (!root->node || !btrfs_buffer_uptodate(root->node, generation)) { + free_extent_buffer(root->node); + return -EIO; + } root->commit_root = btrfs_root_node(root); return 0; } -- cgit v0.10.2 From f3c677b997757326e1f29d33060719a6a5091950 Mon Sep 17 00:00:00 2001 From: Forrest Shi Date: Thu, 9 Dec 2010 16:14:04 +0800 Subject: fsldma: fix issue of slow dma Fixed fsl dma slow issue by initializing dma mode register with bandwidth control. It boosts dma performance and should works with 85xx board. Signed-off-by: Forrest Shi Signed-off-by: Li Yang Signed-off-by: Dan Williams diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index 286c3ac..e5e172d2 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -50,9 +50,11 @@ static void dma_init(struct fsldma_chan *chan) * EIE - Error interrupt enable * EOSIE - End of segments interrupt enable (basic mode) * EOLNIE - End of links interrupt enable + * BWC - Bandwidth sharing among channels */ - DMA_OUT(chan, &chan->regs->mr, FSL_DMA_MR_EIE - | FSL_DMA_MR_EOLNIE | FSL_DMA_MR_EOSIE, 32); + DMA_OUT(chan, &chan->regs->mr, FSL_DMA_MR_BWC + | FSL_DMA_MR_EIE | FSL_DMA_MR_EOLNIE + | FSL_DMA_MR_EOSIE, 32); break; case FSL_DMA_IP_83XX: /* Set the channel to below modes: diff --git a/drivers/dma/fsldma.h b/drivers/dma/fsldma.h index cb4d6ff..ba9f403 100644 --- a/drivers/dma/fsldma.h +++ b/drivers/dma/fsldma.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved. + * Copyright (C) 2007-2010 Freescale Semiconductor, Inc. All rights reserved. * * Author: * Zhang Wei , Jul 2007 @@ -36,6 +36,13 @@ #define FSL_DMA_MR_DAHE 0x00002000 #define FSL_DMA_MR_SAHE 0x00001000 +/* + * Bandwidth/pause control determines how many bytes a given + * channel is allowed to transfer before the DMA engine pauses + * the current channel and switches to the next channel + */ +#define FSL_DMA_MR_BWC 0x08000000 + /* Special MR definition for MPC8349 */ #define FSL_DMA_MR_EOTIE 0x00000080 #define FSL_DMA_MR_PRC_RM 0x00000800 -- cgit v0.10.2 From cd02dca56442e1504fd6bc5b96f7f1870162b266 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Mon, 13 Dec 2010 14:56:23 -0500 Subject: Btrfs: account for missing devices in RAID allocation profiles When we mount in RAID degraded mode without adding a new device to replace the failed one, we can end up using the wrong RAID flags for allocations. This results in strange combinations of block groups (raid1 in a raid10 filesystem) and corruptions when we try to allocate blocks from single spindle chunks on drives that are actually missing. The first device has two small 4MB chunks in it that mkfs creates and these are usually unused in a raid1 or raid10 setup. But, in -o degraded, the allocator will fall back to these because the mask of desired raid groups isn't correct. The fix here is to count the missing devices as we build up the list of devices in the system. This count is used when picking the raid level to make sure we continue using the same levels that were in place before we lost a drive. Signed-off-by: Chris Mason diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 41133b0..4be231e 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3044,7 +3044,13 @@ static void set_avail_alloc_bits(struct btrfs_fs_info *fs_info, u64 flags) u64 btrfs_reduce_alloc_profile(struct btrfs_root *root, u64 flags) { - u64 num_devices = root->fs_info->fs_devices->rw_devices; + /* + * we add in the count of missing devices because we want + * to make sure that any RAID levels on a degraded FS + * continue to be honored. + */ + u64 num_devices = root->fs_info->fs_devices->rw_devices + + root->fs_info->fs_devices->missing_devices; if (num_devices == 1) flags &= ~(BTRFS_BLOCK_GROUP_RAID1 | BTRFS_BLOCK_GROUP_RAID0); @@ -7891,7 +7897,14 @@ static u64 update_block_group_flags(struct btrfs_root *root, u64 flags) u64 stripped = BTRFS_BLOCK_GROUP_RAID0 | BTRFS_BLOCK_GROUP_RAID1 | BTRFS_BLOCK_GROUP_RAID10; - num_devices = root->fs_info->fs_devices->rw_devices; + /* + * we add in the count of missing devices because we want + * to make sure that any RAID levels on a degraded FS + * continue to be honored. + */ + num_devices = root->fs_info->fs_devices->rw_devices + + root->fs_info->fs_devices->missing_devices; + if (num_devices == 1) { stripped |= BTRFS_BLOCK_GROUP_DUP; stripped = flags & ~stripped; diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 91851b5..177b731 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -413,12 +413,16 @@ static noinline int device_list_add(const char *path, device->fs_devices = fs_devices; fs_devices->num_devices++; - } else if (strcmp(device->name, path)) { + } else if (!device->name || strcmp(device->name, path)) { name = kstrdup(path, GFP_NOFS); if (!name) return -ENOMEM; kfree(device->name); device->name = name; + if (device->missing) { + fs_devices->missing_devices--; + device->missing = 0; + } } if (found_transid > fs_devices->latest_trans) { @@ -1238,6 +1242,9 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path) device->fs_devices->num_devices--; + if (device->missing) + root->fs_info->fs_devices->missing_devices--; + next_device = list_entry(root->fs_info->fs_devices->devices.next, struct btrfs_device, dev_list); if (device->bdev == root->fs_info->sb->s_bdev) @@ -3084,7 +3091,9 @@ static struct btrfs_device *add_missing_dev(struct btrfs_root *root, device->devid = devid; device->work.func = pending_bios_fn; device->fs_devices = fs_devices; + device->missing = 1; fs_devices->num_devices++; + fs_devices->missing_devices++; spin_lock_init(&device->io_lock); INIT_LIST_HEAD(&device->dev_alloc_list); memcpy(device->uuid, dev_uuid, BTRFS_UUID_SIZE); @@ -3282,6 +3291,15 @@ static int read_one_dev(struct btrfs_root *root, device = add_missing_dev(root, devid, dev_uuid); if (!device) return -ENOMEM; + } else if (!device->missing) { + /* + * this happens when a device that was properly setup + * in the device info lists suddenly goes bad. + * device->bdev is NULL, and so we have to set + * device->missing to one here + */ + root->fs_info->fs_devices->missing_devices++; + device->missing = 1; } } diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index 31b0fab..a668c01 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h @@ -45,6 +45,7 @@ struct btrfs_device { int barriers; int writeable; int in_fs_metadata; + int missing; spinlock_t io_lock; @@ -94,6 +95,7 @@ struct btrfs_fs_devices { u64 num_devices; u64 open_devices; u64 rw_devices; + u64 missing_devices; u64 total_rw_bytes; struct block_device *latest_bdev; -- cgit v0.10.2 From 83a50de97fe96aca82389e061862ed760ece2283 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Mon, 13 Dec 2010 15:06:46 -0500 Subject: Btrfs: prevent RAID level downgrades when space is low The extent allocator has code that allows us to fill allocations from any available block group, even if it doesn't match the raid level we've requested. This was put in because adding a new drive to a filesystem made with the default mkfs options actually upgrades the metadata from single spindle dup to full RAID1. But, the code also allows us to allocate from a raid0 chunk when we really want a raid1 or raid10 chunk. This can cause big trouble because mkfs creates a small (4MB) raid0 chunk for data and metadata which then goes unused for raid1/raid10 installs. The allocator will happily wander in and allocate from that chunk when things get tight, which is not correct. The fix here is to make sure that we provide duplication when the caller has asked for it. It does all the dups to be any raid level, which preserves the dup->raid1 upgrade abilities. Signed-off-by: Chris Mason diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 4be231e..7e5162e 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -4943,6 +4943,25 @@ search: btrfs_get_block_group(block_group); search_start = block_group->key.objectid; + /* + * this can happen if we end up cycling through all the + * raid types, but we want to make sure we only allocate + * for the proper type. + */ + if (!block_group_bits(block_group, data)) { + u64 extra = BTRFS_BLOCK_GROUP_DUP | + BTRFS_BLOCK_GROUP_RAID1 | + BTRFS_BLOCK_GROUP_RAID10; + + /* + * if they asked for extra copies and this block group + * doesn't provide them, bail. This does allow us to + * fill raid0 from raid1. + */ + if ((data & extra) && !(block_group->flags & extra)) + goto loop; + } + have_block_group: if (unlikely(block_group->cached == BTRFS_CACHE_NO)) { u64 free_percent; @@ -8273,7 +8292,6 @@ int btrfs_read_block_groups(struct btrfs_root *root) break; if (ret != 0) goto error; - leaf = path->nodes[0]; btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]); cache = kzalloc(sizeof(*cache), GFP_NOFS); -- cgit v0.10.2 From 291a73c9be15f12046a7291ec0bf7176a58d4f14 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sun, 12 Dec 2010 21:10:42 +0100 Subject: ACPI / PM: Do not save/restore NVS on Sony Vaio VGN-NW130D The saving of the NVS memory area during suspend and restoring it during resume causes problems to appear on Sony Vaio VGN-NW130D, so blacklist that machine to avoid those problems. Addresses https://bugzilla.kernel.org/show_bug.cgi?id=23002 Signed-off-by: Rafael J. Wysocki Reported-and-tested-by: Adriano Signed-off-by: Len Brown diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 721d93b..d814942 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -427,6 +427,14 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "VPCEB1Z1E"), }, }, + { + .callback = init_nvs_nosave, + .ident = "Sony Vaio VGN-NW130D", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), + DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NW130D"), + }, + }, {}, }; #endif /* CONFIG_SUSPEND */ -- cgit v0.10.2 From 8863ada9c47503bb93eba5e3a9ba88e6311db31f Mon Sep 17 00:00:00 2001 From: Jason Wessel Date: Wed, 1 Dec 2010 13:01:01 -0600 Subject: kgdboc,input: Fix regression with keyboard release key and early debugging The commit 111c182340cd22e238ab1cc6564df336c6ebd7cb (kgdboc: reset input devices (keyboards) when exiting debugger) introduced a regression in early debugging such that you get a kernel oops on continue (with the go command) if you boot a kernel with: earlyprintk=vga ekgdboc=kbd kgdbwait The restore kgdboc_restore_input() routine schedules work for the purpose of sending key release events for any keys that were in the depressed state prior to entering the kernel debugger. A simple fix to the crash is to not invoke the schedule_work() if the kernel system_state is anything other than SYSTEM_RUNNING. Signed-off-by: Jason Wessel Acked-by: Dmitry Torokhov Reviewed-by: Sergei Shtylyov diff --git a/drivers/serial/kgdboc.c b/drivers/serial/kgdboc.c index 3374618..25a8bc5 100644 --- a/drivers/serial/kgdboc.c +++ b/drivers/serial/kgdboc.c @@ -90,7 +90,8 @@ static DECLARE_WORK(kgdboc_restore_input_work, kgdboc_restore_input_helper); static void kgdboc_restore_input(void) { - schedule_work(&kgdboc_restore_input_work); + if (likely(system_state == SYSTEM_RUNNING)) + schedule_work(&kgdboc_restore_input_work); } static int kgdboc_register_kbd(char **cptr) -- cgit v0.10.2 From 59a609d9b59be9452f168fe228befea53d5962ff Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Mon, 13 Dec 2010 13:48:41 +0100 Subject: dmaengine: at_hdmac: fix buffer transfer size specification Buffer transfer size is the number of transfers to be performed in relation with the width of the _source_ interface. So in the DMA_FROM_DEVICE case, it should be the register width that should be taken into account. Signed-off-by: Nicolas Ferre Signed-off-by: Dan Williams diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c index a0f3e6a..ea0ee81 100644 --- a/drivers/dma/at_hdmac.c +++ b/drivers/dma/at_hdmac.c @@ -722,7 +722,7 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, desc->lli.daddr = mem; desc->lli.ctrla = ctrla | ATC_DST_WIDTH(mem_width) - | len >> mem_width; + | len >> reg_width; desc->lli.ctrlb = ctrlb; if (!first) { -- cgit v0.10.2 From 21b6e4c7106b2d68a6710506d8706608272fd78b Mon Sep 17 00:00:00 2001 From: Carmelo AMOROSO Date: Mon, 13 Dec 2010 10:20:26 +0000 Subject: sh: wire up accept4 syscall (non-multiplexed path) Signed-off-by: Carmelo Amoroso Signed-off-by: Paul Mundt diff --git a/arch/sh/include/asm/unistd_32.h b/arch/sh/include/asm/unistd_32.h index 903cd61..d6741fc 100644 --- a/arch/sh/include/asm/unistd_32.h +++ b/arch/sh/include/asm/unistd_32.h @@ -368,8 +368,9 @@ #define __NR_sendmsg 355 #define __NR_recvmsg 356 #define __NR_recvmmsg 357 +#define __NR_accept4 358 -#define NR_syscalls 358 +#define NR_syscalls 359 #ifdef __KERNEL__ diff --git a/arch/sh/kernel/syscalls_32.S b/arch/sh/kernel/syscalls_32.S index e872e81..6fc347e 100644 --- a/arch/sh/kernel/syscalls_32.S +++ b/arch/sh/kernel/syscalls_32.S @@ -375,3 +375,4 @@ ENTRY(sys_call_table) .long sys_sendmsg /* 355 */ .long sys_recvmsg .long sys_recvmmsg + .long sys_accept4 -- cgit v0.10.2 From e504b84805c574cf18d705c610c9e4a8f6e61017 Mon Sep 17 00:00:00 2001 From: Andrew Kephart Date: Mon, 13 Dec 2010 09:46:34 -0600 Subject: fbdev: Fix fb_find_nearest_mode refresh comparison Refresh rate nearness is not calculated or reset when nearest resolution changes. This patch resets the refresh rate differential measurement whenever a new nearest resolution is discovered. This fixes two error cases; first, wherein the first mode's refresh rate differential is never calculated and second, when the closest refresh rate from a previous nearest resolution is erroneously preserved. Signed-off-by: Andrew Kephart Signed-off-by: Paul Mundt diff --git a/drivers/video/modedb.c b/drivers/video/modedb.c index 0a4dbdc..de450c1 100644 --- a/drivers/video/modedb.c +++ b/drivers/video/modedb.c @@ -855,6 +855,7 @@ const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode, abs(cmode->yres - mode->yres); if (diff > d) { diff = d; + diff_refresh = abs(cmode->refresh - mode->refresh); best = cmode; } else if (diff == d) { d = abs(cmode->refresh - mode->refresh); -- cgit v0.10.2 From 3e6cd7a4b6a04cf354a18c9d2e7ecec8fa1772fb Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 10 Dec 2010 17:20:23 +0100 Subject: MAINTAINERS: Add workqueue entry Signed-off-by: Tejun Heo diff --git a/MAINTAINERS b/MAINTAINERS index b3be8b3..462e397 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6585,6 +6585,15 @@ F: include/linux/mfd/wm8400* F: include/sound/wm????.h F: sound/soc/codecs/wm* +WORKQUEUE +M: Tejun Heo +L: linux-kernel@vger.kernel.org +T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git +S: Maintained +F: include/linux/workqueue.h +F: kernel/workqueue.c +F: Documentation/workqueue.txt + X.25 NETWORK LAYER M: Andrew Hendry L: linux-x25@vger.kernel.org -- cgit v0.10.2 From 2d64672ed38721b7a3815009d79bfb90a1f34a17 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Fri, 3 Dec 2010 23:12:33 -0500 Subject: workqueue: It is likely that WORKER_NOT_RUNNING is true Running the annotate branch profiler on three boxes, including my main box that runs firefox, evolution, xchat, and is part of the distcc farm, showed this with the likelys in the workqueue code: correct incorrect % Function File Line ------- --------- - -------- ---- ---- 96 996253 99 wq_worker_sleeping workqueue.c 703 96 996247 99 wq_worker_waking_up workqueue.c 677 The likely()s in this case were assuming that WORKER_NOT_RUNNING will most likely be false. But this is not the case. The reason is (and shown by adding trace_printks and testing it) that most of the time WORKER_PREP is set. In worker_thread() we have: worker_clr_flags(worker, WORKER_PREP); [ do work stuff ] worker_set_flags(worker, WORKER_PREP, false); (that 'false' means not to wake up an idle worker) The wq_worker_sleeping() is called from schedule when a worker thread is putting itself to sleep. Which happens most of the time outside of that [ do work stuff ]. The wq_worker_waking_up is called by the wakeup worker code, which is also callod outside that [ do work stuff ]. Thus, the likely and unlikely used by those two functions are actually backwards. Remove the annotation and let gcc figure it out. Acked-by: Tejun Heo Signed-off-by: Steven Rostedt Signed-off-by: Tejun Heo diff --git a/kernel/workqueue.c b/kernel/workqueue.c index ca017ce..e785b0f 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -661,7 +661,7 @@ void wq_worker_waking_up(struct task_struct *task, unsigned int cpu) { struct worker *worker = kthread_data(task); - if (likely(!(worker->flags & WORKER_NOT_RUNNING))) + if (!(worker->flags & WORKER_NOT_RUNNING)) atomic_inc(get_gcwq_nr_running(cpu)); } @@ -687,7 +687,7 @@ struct task_struct *wq_worker_sleeping(struct task_struct *task, struct global_cwq *gcwq = get_gcwq(cpu); atomic_t *nr_running = get_gcwq_nr_running(cpu); - if (unlikely(worker->flags & WORKER_NOT_RUNNING)) + if (worker->flags & WORKER_NOT_RUNNING) return NULL; /* this can only happen on the local cpu */ -- cgit v0.10.2 From 1449032be17abb69116dbc393f67ceb8bd034f92 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Tue, 14 Dec 2010 15:27:50 -0500 Subject: ext4: Turn off multiple page-io submission by default Jon Nelson has found a test case which causes postgresql to fail with the error: psql:t.sql:4: ERROR: invalid page header in block 38269 of relation base/16384/16581 Under memory pressure, it looks like part of a file can end up getting replaced by zero's. Until we can figure out the cause, we'll roll back the change and use block_write_full_page() instead of ext4_bio_write_page(). The new, more efficient writing function can be used via the mount option mblk_io_submit, so we can test and fix the new page I/O code. To reproduce the problem, install postgres 8.4 or 9.0, and pin enough memory such that the system just at the end of triggering writeback before running the following sql script: begin; create temporary table foo as select x as a, ARRAY[x] as b FROM generate_series(1, 10000000 ) AS x; create index foo_a_idx on foo (a); create index foo_b_idx on foo USING GIN (b); rollback; If the temporary table is created on a hard drive partition which is encrypted using dm_crypt, then under memory pressure, approximately 30-40% of the time, pgsql will issue the above failure. This patch should fix this problem, and the problem will come back if the file system is mounted with the mblk_io_submit mount option. Reported-by: Jon Nelson Signed-off-by: "Theodore Ts'o" diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 6a5edea..94ce3d7 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -910,6 +910,7 @@ struct ext4_inode_info { #define EXT4_MOUNT_JOURNAL_CHECKSUM 0x800000 /* Journal checksums */ #define EXT4_MOUNT_JOURNAL_ASYNC_COMMIT 0x1000000 /* Journal Async Commit */ #define EXT4_MOUNT_I_VERSION 0x2000000 /* i_version support */ +#define EXT4_MOUNT_MBLK_IO_SUBMIT 0x4000000 /* multi-block io submits */ #define EXT4_MOUNT_DELALLOC 0x8000000 /* Delalloc support */ #define EXT4_MOUNT_DATA_ERR_ABORT 0x10000000 /* Abort on file data write */ #define EXT4_MOUNT_BLOCK_VALIDITY 0x20000000 /* Block validity checking */ diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index bdbe699..e659597 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2125,9 +2125,12 @@ static int mpage_da_submit_io(struct mpage_da_data *mpd, */ if (unlikely(journal_data && PageChecked(page))) err = __ext4_journalled_writepage(page, len); - else + else if (test_opt(inode->i_sb, MBLK_IO_SUBMIT)) err = ext4_bio_write_page(&io_submit, page, len, mpd->wbc); + else + err = block_write_full_page(page, + noalloc_get_block_write, mpd->wbc); if (!err) mpd->pages_written++; diff --git a/fs/ext4/super.c b/fs/ext4/super.c index e32195d..fb15c9c 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1026,6 +1026,8 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs) !(def_mount_opts & EXT4_DEFM_NODELALLOC)) seq_puts(seq, ",nodelalloc"); + if (test_opt(sb, MBLK_IO_SUBMIT)) + seq_puts(seq, ",mblk_io_submit"); if (sbi->s_stripe) seq_printf(seq, ",stripe=%lu", sbi->s_stripe); /* @@ -1239,8 +1241,8 @@ enum { Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_jqfmt_vfsv1, Opt_quota, Opt_noquota, Opt_ignore, Opt_barrier, Opt_nobarrier, Opt_err, Opt_resize, Opt_usrquota, Opt_grpquota, Opt_i_version, - Opt_stripe, Opt_delalloc, Opt_nodelalloc, - Opt_block_validity, Opt_noblock_validity, + Opt_stripe, Opt_delalloc, Opt_nodelalloc, Opt_mblk_io_submit, + Opt_nomblk_io_submit, Opt_block_validity, Opt_noblock_validity, Opt_inode_readahead_blks, Opt_journal_ioprio, Opt_dioread_nolock, Opt_dioread_lock, Opt_discard, Opt_nodiscard, @@ -1304,6 +1306,8 @@ static const match_table_t tokens = { {Opt_resize, "resize"}, {Opt_delalloc, "delalloc"}, {Opt_nodelalloc, "nodelalloc"}, + {Opt_mblk_io_submit, "mblk_io_submit"}, + {Opt_nomblk_io_submit, "nomblk_io_submit"}, {Opt_block_validity, "block_validity"}, {Opt_noblock_validity, "noblock_validity"}, {Opt_inode_readahead_blks, "inode_readahead_blks=%u"}, @@ -1725,6 +1729,12 @@ set_qf_format: case Opt_nodelalloc: clear_opt(sbi->s_mount_opt, DELALLOC); break; + case Opt_mblk_io_submit: + set_opt(sbi->s_mount_opt, MBLK_IO_SUBMIT); + break; + case Opt_nomblk_io_submit: + clear_opt(sbi->s_mount_opt, MBLK_IO_SUBMIT); + break; case Opt_stripe: if (match_int(&args[0], &option)) return 0; -- cgit v0.10.2 From d6db46675dba21203378b6993068ec04bb53389c Mon Sep 17 00:00:00 2001 From: Jiandong Zheng Date: Tue, 14 Dec 2010 21:55:49 +0000 Subject: Change bcmring Maintainer list. I am Jiandong Zheng working on BCMRING in Broadcom Canada Ltd. I am replacing Leo Chen (leochen@broadcom.com) as "ARM/BCMRING ARM ARCHITECTURE" and "ARM/BCMRING MTD NAND DRIVER" maintainer from Broadcom as he is no longer the maintainer of these components. Signed-off-by: Jiandong Zheng Acked-by: Scott Branden Signed-off-by: Russell King diff --git a/MAINTAINERS b/MAINTAINERS index 1a1c27b..5202dc3 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -559,14 +559,14 @@ W: http://maxim.org.za/at91_26.html S: Maintained ARM/BCMRING ARM ARCHITECTURE -M: Leo Chen +M: Jiandong Zheng M: Scott Branden L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) S: Maintained F: arch/arm/mach-bcmring ARM/BCMRING MTD NAND DRIVER -M: Leo Chen +M: Jiandong Zheng M: Scott Branden L: linux-mtd@lists.infradead.org S: Maintained -- cgit v0.10.2 From 6e6fc998b8c127fe06b9350a1f16e41bfe4f109d Mon Sep 17 00:00:00 2001 From: Dave Martin Date: Mon, 13 Dec 2010 21:53:53 +0100 Subject: ARM: 6533/1: Thumb-2: Make CONFIG_THUMB2_KERNEL depend on !CPU_V6 This makes sense, because Thumb-2 code can't execute on plain ARMv6 processors. This will avoid accidentally configuring a broken kernel where the config otherwise would allow multiple architecture versions to coexist in the same kernel. Not adding !CPU_V5 etc., because the chance of anyone trying to put v5 and v7 in the same kernel is low, and I'm not aware of any mach which can do this. These could be added later if it matters. Note that the rules may need to be refined if support for the ARM1156J(F)-S processor is later added to the kernel, since this processor supports the rare ARMv6T2 extensions, which add support for Thumb-2 and a few other ARMv7 features. Signed-off-by: Dave Martin Acked-by: Catalin Marinas Acked-by: Nicolas Pitre Acked-by: Santosh Shilimkar Signed-off-by: Russell King diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index f1d9297..bf1f8db 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1311,7 +1311,7 @@ config HZ config THUMB2_KERNEL bool "Compile the kernel in Thumb-2 mode" - depends on CPU_V7 && EXPERIMENTAL + depends on CPU_V7 && !CPU_V6 && EXPERIMENTAL select AEABI select ARM_ASM_UNIFIED help -- cgit v0.10.2 From 593c252a731389ffdd00d4cb2d20192c47aa18c1 Mon Sep 17 00:00:00 2001 From: Dave Martin Date: Mon, 13 Dec 2010 21:56:03 +0100 Subject: ARM: 6534/1: Make CONFIG_FPE_NWFPE depend on !CONFIG_THUMB2_KERNEL Because the nwfpe support is unlikely to be used on new platforms and requires CONFIG_OABI_COMPAT, which is not generally used with ARMv7+, we shouldn't expect to build nwfpe support into a Thumb-2 kernel. At present, nwfpe contains assembly code which isn't Thumb-2 compatible, and for now it doesn't appear useful to port this code. All ARMv7-A/R platforms necessarily have VFPv3 hardware floating- point natively, making emulation unnecessary. Signed-off-by: Dave Martin Acked-by: Catalin Marinas Acked-by: Nicolas Pitre Acked-by: Santosh Shilimkar Signed-off-by: Russell King diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index bf1f8db..d56d21c 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1759,7 +1759,7 @@ comment "At least one emulation must be selected" config FPE_NWFPE bool "NWFPE math emulation" - depends on !AEABI || OABI_COMPAT + depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL ---help--- Say Y to include the NWFPE floating point emulator in the kernel. This is necessary to run most binaries. Linux does not currently -- cgit v0.10.2 From 85b093bcc5322baa811a03ec73de0909c157f181 Mon Sep 17 00:00:00 2001 From: Valentine Barshak Date: Tue, 14 Dec 2010 00:03:16 +0100 Subject: ARM: 6535/1: V6 MPCore v6_dma_inv_range and v6_dma_flush_range RWFO fix Cache ownership must be acquired by reading/writing data from the cache line to make cache operation have the desired effect on the SMP MPCore CPU. However, the ownership is never acquired in the v6_dma_inv_range function when cleaning the first line and flushing the last one, in case the address is not aligned to D_CACHE_LINE_SIZE boundary. Fix this by reading/writing data if needed, before performing cache operations. While at it, fix v6_dma_flush_range to prevent RWFO outside the buffer. Cc: stable@kernel.org Signed-off-by: Valentine Barshak Signed-off-by: George G. Davis Acked-by: Catalin Marinas Signed-off-by: Russell King diff --git a/arch/arm/mm/cache-v6.S b/arch/arm/mm/cache-v6.S index 99fa688..c96fa1b 100644 --- a/arch/arm/mm/cache-v6.S +++ b/arch/arm/mm/cache-v6.S @@ -203,6 +203,10 @@ ENTRY(v6_flush_kern_dcache_area) * - end - virtual end address of region */ v6_dma_inv_range: +#ifdef CONFIG_DMA_CACHE_RWFO + ldrb r2, [r0] @ read for ownership + strb r2, [r0] @ write for ownership +#endif tst r0, #D_CACHE_LINE_SIZE - 1 bic r0, r0, #D_CACHE_LINE_SIZE - 1 #ifdef HARVARD_CACHE @@ -211,6 +215,10 @@ v6_dma_inv_range: mcrne p15, 0, r0, c7, c11, 1 @ clean unified line #endif tst r1, #D_CACHE_LINE_SIZE - 1 +#ifdef CONFIG_DMA_CACHE_RWFO + ldrneb r2, [r1, #-1] @ read for ownership + strneb r2, [r1, #-1] @ write for ownership +#endif bic r1, r1, #D_CACHE_LINE_SIZE - 1 #ifdef HARVARD_CACHE mcrne p15, 0, r1, c7, c14, 1 @ clean & invalidate D line @@ -218,10 +226,6 @@ v6_dma_inv_range: mcrne p15, 0, r1, c7, c15, 1 @ clean & invalidate unified line #endif 1: -#ifdef CONFIG_DMA_CACHE_RWFO - ldr r2, [r0] @ read for ownership - str r2, [r0] @ write for ownership -#endif #ifdef HARVARD_CACHE mcr p15, 0, r0, c7, c6, 1 @ invalidate D line #else @@ -229,6 +233,10 @@ v6_dma_inv_range: #endif add r0, r0, #D_CACHE_LINE_SIZE cmp r0, r1 +#ifdef CONFIG_DMA_CACHE_RWFO + ldrlo r2, [r0] @ read for ownership + strlo r2, [r0] @ write for ownership +#endif blo 1b mov r0, #0 mcr p15, 0, r0, c7, c10, 4 @ drain write buffer @@ -263,12 +271,12 @@ v6_dma_clean_range: * - end - virtual end address of region */ ENTRY(v6_dma_flush_range) - bic r0, r0, #D_CACHE_LINE_SIZE - 1 -1: #ifdef CONFIG_DMA_CACHE_RWFO - ldr r2, [r0] @ read for ownership - str r2, [r0] @ write for ownership + ldrb r2, [r0] @ read for ownership + strb r2, [r0] @ write for ownership #endif + bic r0, r0, #D_CACHE_LINE_SIZE - 1 +1: #ifdef HARVARD_CACHE mcr p15, 0, r0, c7, c14, 1 @ clean & invalidate D line #else @@ -276,6 +284,10 @@ ENTRY(v6_dma_flush_range) #endif add r0, r0, #D_CACHE_LINE_SIZE cmp r0, r1 +#ifdef CONFIG_DMA_CACHE_RWFO + ldrlob r2, [r0] @ read for ownership + strlob r2, [r0] @ write for ownership +#endif blo 1b mov r0, #0 mcr p15, 0, r0, c7, c10, 4 @ drain write buffer -- cgit v0.10.2 From 6d5c3aa84b3e431f2d0fc39c73c867d1a4dd8cff Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Tue, 14 Dec 2010 21:45:31 -0500 Subject: ext4: fix typo which broke '..' detection in ext4_find_entry() There should be a check for the NUL character instead of '0'. Fortunately the only thing that cares about this is NFS serving, which is why we didn't notice this in the merge window testing. Reported-by: Phil Carmody Signed-off-by: Aaro Koskinen Signed-off-by: "Theodore Ts'o" diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 92203b8..dc40e75 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -872,7 +872,7 @@ static struct buffer_head * ext4_find_entry (struct inode *dir, if (namelen > EXT4_NAME_LEN) return NULL; if ((namelen <= 2) && (name[0] == '.') && - (name[1] == '.' || name[1] == '0')) { + (name[1] == '.' || name[1] == '\0')) { /* * "." or ".." will only be in the first block * NFS may look up ".."; "." should be handled by the VFS -- cgit v0.10.2 From 54efdfeb49f03adfd0196935335890469ed314b9 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Tue, 14 Dec 2010 15:29:08 +0000 Subject: i2c_intel_mid: Fix slash in sysfs name This gets caught by the new sanity check code. Instead of the slash use a different symbol. This was originally found by Major Lee who proposed a rather more complex patch which changed the name according to the chip type. On the basis that we are in a late -rc and making Linus grumpy isn't always a good idea (however fun) this is a simple alternative. Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds diff --git a/drivers/i2c/busses/i2c-intel-mid.c b/drivers/i2c/busses/i2c-intel-mid.c index 80f70d3..c714927 100644 --- a/drivers/i2c/busses/i2c-intel-mid.c +++ b/drivers/i2c/busses/i2c-intel-mid.c @@ -999,7 +999,7 @@ static int __devinit intel_mid_i2c_probe(struct pci_dev *dev, /* Initialize struct members */ snprintf(mrst->adap.name, sizeof(mrst->adap.name), - "MRST/Medfield I2C at %lx", start); + "Intel MID I2C at %lx", start); mrst->adap.owner = THIS_MODULE; mrst->adap.algo = &intel_mid_i2c_algorithm; mrst->adap.dev.parent = &dev->dev; -- cgit v0.10.2 From 3d0b6087f3f2c88caef25e1455ff8db0816d4e11 Mon Sep 17 00:00:00 2001 From: Major Lee Date: Fri, 10 Dec 2010 10:13:49 +0000 Subject: dw_spi: Fix missing final read in some polling situations There is a possibility that the last word of a transaction will be lost if data is not ready. Re-read in poll_transfer() to solve this issue when poll_mode is enabled. Verified on SPI touch screen device. Signed-off-by: Major Lee Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds diff --git a/drivers/spi/dw_spi.c b/drivers/spi/dw_spi.c index 9043931..0838c79 100644 --- a/drivers/spi/dw_spi.c +++ b/drivers/spi/dw_spi.c @@ -413,6 +413,11 @@ static void poll_transfer(struct dw_spi *dws) { while (dws->write(dws)) dws->read(dws); + /* + * There is a possibility that the last word of a transaction + * will be lost if data is not ready. Re-read to solve this issue. + */ + dws->read(dws); transfer_complete(dws); } -- cgit v0.10.2 From ab4e0192196b8d4e43a3945742d4996da934a86f Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Tue, 14 Dec 2010 23:53:21 -0800 Subject: Input: define separate EVIOCGKEYCODE_V2/EVIOCSKEYCODE_V2 The desire to keep old names for the EVIOCGKEYCODE/EVIOCSKEYCODE while extending them to support large scancodes was a mistake. While we tried to keep ABI intact (and we succeeded in doing that, programs compiled on older kernels will work on newer ones) there is still a problem with recompiling existing software with newer kernel headers. New kernel headers will supply updated ioctl numbers and kernel will expect that userspace will use struct input_keymap_entry to set and retrieve keymap data. But since the names of ioctls are still the same userspace will happily compile even if not adjusted to make use of the new structure and will start miraculously fail in the field. To avoid this issue let's revert EVIOCGKEYCODE/EVIOCSKEYCODE definitions and add EVIOCGKEYCODE_V2/EVIOCSKEYCODE_V2 so that userspace can explicitly select the style of ioctls it wants to employ. Reviewed-by: Henrik Rydberg Acked-by: Jarod Wilson Acked-by: Mauro Carvalho Chehab Signed-off-by: Dmitry Torokhov diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c index e3f7fc6..68f09a8 100644 --- a/drivers/input/evdev.c +++ b/drivers/input/evdev.c @@ -534,76 +534,73 @@ static int handle_eviocgbit(struct input_dev *dev, } #undef OLD_KEY_MAX -static int evdev_handle_get_keycode(struct input_dev *dev, - void __user *p, size_t size) +static int evdev_handle_get_keycode(struct input_dev *dev, void __user *p) { - struct input_keymap_entry ke; + struct input_keymap_entry ke = { + .len = sizeof(unsigned int), + .flags = 0, + }; + int __user *ip = (int __user *)p; int error; - memset(&ke, 0, sizeof(ke)); - - if (size == sizeof(unsigned int[2])) { - /* legacy case */ - int __user *ip = (int __user *)p; + /* legacy case */ + if (copy_from_user(ke.scancode, p, sizeof(unsigned int))) + return -EFAULT; - if (copy_from_user(ke.scancode, p, sizeof(unsigned int))) - return -EFAULT; + error = input_get_keycode(dev, &ke); + if (error) + return error; - ke.len = sizeof(unsigned int); - ke.flags = 0; + if (put_user(ke.keycode, ip + 1)) + return -EFAULT; - error = input_get_keycode(dev, &ke); - if (error) - return error; + return 0; +} - if (put_user(ke.keycode, ip + 1)) - return -EFAULT; +static int evdev_handle_get_keycode_v2(struct input_dev *dev, void __user *p) +{ + struct input_keymap_entry ke; + int error; - } else { - size = min(size, sizeof(ke)); + if (copy_from_user(&ke, p, sizeof(ke))) + return -EFAULT; - if (copy_from_user(&ke, p, size)) - return -EFAULT; + error = input_get_keycode(dev, &ke); + if (error) + return error; - error = input_get_keycode(dev, &ke); - if (error) - return error; + if (copy_to_user(p, &ke, sizeof(ke))) + return -EFAULT; - if (copy_to_user(p, &ke, size)) - return -EFAULT; - } return 0; } -static int evdev_handle_set_keycode(struct input_dev *dev, - void __user *p, size_t size) +static int evdev_handle_set_keycode(struct input_dev *dev, void __user *p) { - struct input_keymap_entry ke; - - memset(&ke, 0, sizeof(ke)); + struct input_keymap_entry ke = { + .len = sizeof(unsigned int), + .flags = 0, + }; + int __user *ip = (int __user *)p; - if (size == sizeof(unsigned int[2])) { - /* legacy case */ - int __user *ip = (int __user *)p; + if (copy_from_user(ke.scancode, p, sizeof(unsigned int))) + return -EFAULT; - if (copy_from_user(ke.scancode, p, sizeof(unsigned int))) - return -EFAULT; + if (get_user(ke.keycode, ip + 1)) + return -EFAULT; - if (get_user(ke.keycode, ip + 1)) - return -EFAULT; + return input_set_keycode(dev, &ke); +} - ke.len = sizeof(unsigned int); - ke.flags = 0; +static int evdev_handle_set_keycode_v2(struct input_dev *dev, void __user *p) +{ + struct input_keymap_entry ke; - } else { - size = min(size, sizeof(ke)); + if (copy_from_user(&ke, p, sizeof(ke))) + return -EFAULT; - if (copy_from_user(&ke, p, size)) - return -EFAULT; - - if (ke.len > sizeof(ke.scancode)) - return -EINVAL; - } + if (ke.len > sizeof(ke.scancode)) + return -EINVAL; return input_set_keycode(dev, &ke); } @@ -669,6 +666,18 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd, return evdev_grab(evdev, client); else return evdev_ungrab(evdev, client); + + case EVIOCGKEYCODE: + return evdev_handle_get_keycode(dev, p); + + case EVIOCSKEYCODE: + return evdev_handle_set_keycode(dev, p); + + case EVIOCGKEYCODE_V2: + return evdev_handle_get_keycode_v2(dev, p); + + case EVIOCSKEYCODE_V2: + return evdev_handle_set_keycode_v2(dev, p); } size = _IOC_SIZE(cmd); @@ -708,12 +717,6 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd, return -EFAULT; return error; - - case EVIOC_MASK_SIZE(EVIOCGKEYCODE): - return evdev_handle_get_keycode(dev, p, size); - - case EVIOC_MASK_SIZE(EVIOCSKEYCODE): - return evdev_handle_set_keycode(dev, p, size); } /* Multi-number variable-length handlers */ diff --git a/include/linux/input.h b/include/linux/input.h index a8af21d..9777668 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -104,8 +104,10 @@ struct input_keymap_entry { #define EVIOCGREP _IOR('E', 0x03, unsigned int[2]) /* get repeat settings */ #define EVIOCSREP _IOW('E', 0x03, unsigned int[2]) /* set repeat settings */ -#define EVIOCGKEYCODE _IOR('E', 0x04, struct input_keymap_entry) /* get keycode */ -#define EVIOCSKEYCODE _IOW('E', 0x04, struct input_keymap_entry) /* set keycode */ +#define EVIOCGKEYCODE _IOR('E', 0x04, unsigned int[2]) /* get keycode */ +#define EVIOCGKEYCODE_V2 _IOR('E', 0x04, struct input_keymap_entry) +#define EVIOCSKEYCODE _IOW('E', 0x04, unsigned int[2]) /* set keycode */ +#define EVIOCSKEYCODE_V2 _IOW('E', 0x04, struct input_keymap_entry) #define EVIOCGNAME(len) _IOC(_IOC_READ, 'E', 0x06, len) /* get device name */ #define EVIOCGPHYS(len) _IOC(_IOC_READ, 'E', 0x07, len) /* get physical location */ -- cgit v0.10.2 From 52f6c5ad430e41736133acac179607b224eaaa11 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 15 Dec 2010 17:58:57 +0800 Subject: crypto: ghash-intel - ghash-clmulni-intel_glue needs err.h Add missing header file: arch/x86/crypto/ghash-clmulni-intel_glue.c:256: error: implicit declaration of function 'IS_ERR' arch/x86/crypto/ghash-clmulni-intel_glue.c:257: error: implicit declaration of function 'PTR_ERR' Signed-off-by: Randy Dunlap Signed-off-by: Herbert Xu diff --git a/arch/x86/crypto/ghash-clmulni-intel_glue.c b/arch/x86/crypto/ghash-clmulni-intel_glue.c index cbcc8d8..7a6e68e 100644 --- a/arch/x86/crypto/ghash-clmulni-intel_glue.c +++ b/arch/x86/crypto/ghash-clmulni-intel_glue.c @@ -10,6 +10,7 @@ * by the Free Software Foundation. */ +#include #include #include #include -- cgit v0.10.2 From 62731fa0c893515dc6cbc3e0a2879a92793c735f Mon Sep 17 00:00:00 2001 From: Alexey Zaytsev Date: Mon, 22 Nov 2010 00:33:03 +0000 Subject: fanotify: split version into version and metadata_len To implement per event type optional headers we are interested in knowing how long the metadata structure is. This patch slits the __u32 version field into a __u8 version and a __u16 metadata_len field (with __u8 left over). This should allow for backwards compat ABI. Signed-off-by: Alexey Zaytsev [rewrote descrtion and changed object sizes and ordering - eparis] Signed-off-by: Eric Paris diff --git a/include/linux/fanotify.h b/include/linux/fanotify.h index c732243..6c6133f 100644 --- a/include/linux/fanotify.h +++ b/include/linux/fanotify.h @@ -83,11 +83,13 @@ FAN_ALL_PERM_EVENTS |\ FAN_Q_OVERFLOW) -#define FANOTIFY_METADATA_VERSION 2 +#define FANOTIFY_METADATA_VERSION 3 struct fanotify_event_metadata { __u32 event_len; - __u32 vers; + __u8 vers; + __u8 reserved; + __u16 metadata_len; __aligned_u64 mask; __s32 fd; __s32 pid; -- cgit v0.10.2 From 7d13162332f2b67a941d18cee20f1c0413e020de Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Tue, 7 Dec 2010 15:27:57 -0500 Subject: fanotify: fill in the metadata_len field on struct fanotify_event_metadata The fanotify_event_metadata now has a field which is supposed to indicate the length of the metadata portion of the event. Fill in that field as well. Based-in-part-on-patch-by: Alexey Zaytsev Signed-off-by: Eric Paris diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c index dccd798..8b61220 100644 --- a/fs/notify/fanotify/fanotify_user.c +++ b/fs/notify/fanotify/fanotify_user.c @@ -116,6 +116,7 @@ static int fill_event_metadata(struct fsnotify_group *group, group, metadata, event); metadata->event_len = FAN_EVENT_METADATA_LEN; + metadata->metadata_len = FAN_EVENT_METADATA_LEN; metadata->vers = FANOTIFY_METADATA_VERSION; metadata->mask = event->mask & FAN_ALL_OUTGOING_EVENTS; metadata->pid = pid_vnr(event->tgid); @@ -275,10 +276,11 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group, goto out_close_fd; ret = -EFAULT; - if (copy_to_user(buf, &fanotify_event_metadata, FAN_EVENT_METADATA_LEN)) + if (copy_to_user(buf, &fanotify_event_metadata, + fanotify_event_metadata.event_len)) goto out_kill_access_response; - return FAN_EVENT_METADATA_LEN; + return fanotify_event_metadata.event_len; out_kill_access_response: remove_access_response(group, event, fd); -- cgit v0.10.2 From 462e635e5b73ba9a4c03913b77138cd57ce4b050 Mon Sep 17 00:00:00 2001 From: Tavis Ormandy Date: Thu, 9 Dec 2010 15:29:42 +0100 Subject: install_special_mapping skips security_file_mmap check. The install_special_mapping routine (used, for example, to setup the vdso) skips the security check before insert_vm_struct, allowing a local attacker to bypass the mmap_min_addr security restriction by limiting the available pages for special mappings. bprm_mm_init() also skips the check, and although I don't think this can be used to bypass any restrictions, I don't see any reason not to have the security check. $ uname -m x86_64 $ cat /proc/sys/vm/mmap_min_addr 65536 $ cat install_special_mapping.s section .bss resb BSS_SIZE section .text global _start _start: mov eax, __NR_pause int 0x80 $ nasm -D__NR_pause=29 -DBSS_SIZE=0xfffed000 -f elf -o install_special_mapping.o install_special_mapping.s $ ld -m elf_i386 -Ttext=0x10000 -Tbss=0x11000 -o install_special_mapping install_special_mapping.o $ ./install_special_mapping & [1] 14303 $ cat /proc/14303/maps 0000f000-00010000 r-xp 00000000 00:00 0 [vdso] 00010000-00011000 r-xp 00001000 00:19 2453665 /home/taviso/install_special_mapping 00011000-ffffe000 rwxp 00000000 00:00 0 [stack] It's worth noting that Red Hat are shipping with mmap_min_addr set to 4096. Signed-off-by: Tavis Ormandy Acked-by: Kees Cook Acked-by: Robert Swiecki [ Changed to not drop the error code - akpm ] Reviewed-by: James Morris Signed-off-by: Linus Torvalds diff --git a/fs/exec.c b/fs/exec.c index d68c378..c62efcb 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -275,6 +275,11 @@ static int __bprm_mm_init(struct linux_binprm *bprm) vma->vm_flags = VM_STACK_FLAGS | VM_STACK_INCOMPLETE_SETUP; vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); INIT_LIST_HEAD(&vma->anon_vma_chain); + + err = security_file_mmap(NULL, 0, 0, 0, vma->vm_start, 1); + if (err) + goto err; + err = insert_vm_struct(mm, vma); if (err) goto err; diff --git a/mm/mmap.c b/mm/mmap.c index b179abb..50a4aa0 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -2462,6 +2462,7 @@ int install_special_mapping(struct mm_struct *mm, unsigned long addr, unsigned long len, unsigned long vm_flags, struct page **pages) { + int ret; struct vm_area_struct *vma; vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); @@ -2479,16 +2480,23 @@ int install_special_mapping(struct mm_struct *mm, vma->vm_ops = &special_mapping_vmops; vma->vm_private_data = pages; - if (unlikely(insert_vm_struct(mm, vma))) { - kmem_cache_free(vm_area_cachep, vma); - return -ENOMEM; - } + ret = security_file_mmap(NULL, 0, 0, 0, vma->vm_start, 1); + if (ret) + goto out; + + ret = insert_vm_struct(mm, vma); + if (ret) + goto out; mm->total_vm += len >> PAGE_SHIFT; perf_event_mmap(vma); return 0; + +out: + kmem_cache_free(vm_area_cachep, vma); + return ret; } static DEFINE_MUTEX(mm_all_locks_mutex); -- cgit v0.10.2 From 6c965ff5e7ca844494f1dcf0ec0440146db01294 Mon Sep 17 00:00:00 2001 From: Daniel Walker Date: Thu, 9 Dec 2010 15:45:27 -0800 Subject: MAINTAINERS: update MSM git tree The MSM main git tree has changed over to this new address. Signed-off-by: Daniel Walker Signed-off-by: Linus Torvalds diff --git a/MAINTAINERS b/MAINTAINERS index 0b0d2ba..6a58887 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -815,7 +815,7 @@ F: drivers/mmc/host/msm_sdcc.c F: drivers/mmc/host/msm_sdcc.h F: drivers/serial/msm_serial.h F: drivers/serial/msm_serial.c -T: git git://codeaurora.org/quic/kernel/dwalker/linux-msm.git +T: git git://codeaurora.org/quic/kernel/davidb/linux-msm.git S: Maintained ARM/TOSA MACHINE SUPPORT -- cgit v0.10.2 From 667c78afaec0ac500908e191e8f236e9578d7b1f Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Wed, 8 Dec 2010 12:39:12 -0800 Subject: xen: Provide a variant of __RING_SIZE() that is an integer constant expression Without this, gcc 4.5 won't compile xen-netfront and xen-blkfront, where this is being used to specify array sizes. Signed-off-by: Jan Beulich Signed-off-by: Jeremy Fitzhardinge Cc: Jens Axboe Cc: David Miller Cc: Stable Kernel Signed-off-by: Linus Torvalds diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 4f9e22f..657873e 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -72,7 +72,7 @@ struct blk_shadow { static DEFINE_MUTEX(blkfront_mutex); static const struct block_device_operations xlvbd_block_fops; -#define BLK_RING_SIZE __RING_SIZE((struct blkif_sring *)0, PAGE_SIZE) +#define BLK_RING_SIZE __CONST_RING_SIZE(blkif, PAGE_SIZE) /* * We have one of these per vbd, whether ide, scsi or 'other'. They diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c index 458bb57..cdbeec9 100644 --- a/drivers/net/xen-netfront.c +++ b/drivers/net/xen-netfront.c @@ -66,8 +66,8 @@ struct netfront_cb { #define GRANT_INVALID_REF 0 -#define NET_TX_RING_SIZE __RING_SIZE((struct xen_netif_tx_sring *)0, PAGE_SIZE) -#define NET_RX_RING_SIZE __RING_SIZE((struct xen_netif_rx_sring *)0, PAGE_SIZE) +#define NET_TX_RING_SIZE __CONST_RING_SIZE(xen_netif_tx, PAGE_SIZE) +#define NET_RX_RING_SIZE __CONST_RING_SIZE(xen_netif_rx, PAGE_SIZE) #define TX_MAX_TARGET min_t(int, NET_RX_RING_SIZE, 256) struct netfront_info { diff --git a/include/xen/interface/io/ring.h b/include/xen/interface/io/ring.h index e8cbf43..75271b9 100644 --- a/include/xen/interface/io/ring.h +++ b/include/xen/interface/io/ring.h @@ -24,8 +24,15 @@ typedef unsigned int RING_IDX; * A ring contains as many entries as will fit, rounded down to the nearest * power of two (so we can mask with (size-1) to loop around). */ -#define __RING_SIZE(_s, _sz) \ - (__RD32(((_sz) - (long)&(_s)->ring + (long)(_s)) / sizeof((_s)->ring[0]))) +#define __CONST_RING_SIZE(_s, _sz) \ + (__RD32(((_sz) - offsetof(struct _s##_sring, ring)) / \ + sizeof(((struct _s##_sring *)0)->ring[0]))) + +/* + * The same for passing in an actual pointer instead of a name tag. + */ +#define __RING_SIZE(_s, _sz) \ + (__RD32(((_sz) - (long)&(_s)->ring + (long)(_s)) / sizeof((_s)->ring[0]))) /* * Macros to make the correct C datatypes for a new kind of ring. -- cgit v0.10.2 From b0c3844d8af6b9f3f18f31e1b0502fbefa2166be Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Wed, 15 Dec 2010 17:24:48 -0800 Subject: Linux 2.6.37-rc6 diff --git a/Makefile b/Makefile index 3d94974..5aa4427 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 2 PATCHLEVEL = 6 SUBLEVEL = 37 -EXTRAVERSION = -rc5 +EXTRAVERSION = -rc6 NAME = Flesh-Eating Bats with Fangs # *DOCUMENTATION* -- cgit v0.10.2 From 947b10ae0aeda89fc066a7470fdba55f72b0b8fc Mon Sep 17 00:00:00 2001 From: Ryusuke Konishi Date: Thu, 16 Dec 2010 09:57:57 +0900 Subject: nilfs2: fix regression of garbage collection ioctl On 2.6.37-rc1, garbage collection ioctl of nilfs was broken due to the commit 263d90cefc7d82a0 ("nilfs2: remove own inode hash used for GC"), and leading to filesystem corruption. The patch doesn't queue gc-inodes for log writer if they are reused through the vfs inode cache. Here, gc-inode is the inode which buffers blocks to be relocated on GC. That patch queues gc-inodes in nilfs_init_gcinode() function, but this function is not called when they don't have I_NEW flag. Thus, some of live blocks are wrongly overrode without being moved to new logs. This resolves the problem by moving the gc-inode queueing to an outer function to ensure it's done right. Signed-off-by: Ryusuke Konishi diff --git a/fs/nilfs2/gcinode.c b/fs/nilfs2/gcinode.c index 33ad25d..caf9a6a 100644 --- a/fs/nilfs2/gcinode.c +++ b/fs/nilfs2/gcinode.c @@ -176,7 +176,6 @@ int nilfs_gccache_wait_and_mark_dirty(struct buffer_head *bh) int nilfs_init_gcinode(struct inode *inode) { struct nilfs_inode_info *ii = NILFS_I(inode); - struct the_nilfs *nilfs = NILFS_SB(inode->i_sb)->s_nilfs; inode->i_mode = S_IFREG; mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); @@ -186,14 +185,6 @@ int nilfs_init_gcinode(struct inode *inode) ii->i_flags = 0; nilfs_bmap_init_gc(ii->i_bmap); - /* - * Add the inode to GC inode list. Garbage Collection - * is serialized and no two processes manipulate the - * list simultaneously. - */ - igrab(inode); - list_add(&NILFS_I(inode)->i_dirty, &nilfs->ns_gc_inodes); - return 0; } diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c index e00d945..b185e93 100644 --- a/fs/nilfs2/ioctl.c +++ b/fs/nilfs2/ioctl.c @@ -337,6 +337,7 @@ static int nilfs_ioctl_move_blocks(struct super_block *sb, struct nilfs_argv *argv, void *buf) { size_t nmembs = argv->v_nmembs; + struct the_nilfs *nilfs = NILFS_SB(sb)->s_nilfs; struct inode *inode; struct nilfs_vdesc *vdesc; struct buffer_head *bh, *n; @@ -353,6 +354,17 @@ static int nilfs_ioctl_move_blocks(struct super_block *sb, ret = PTR_ERR(inode); goto failed; } + if (list_empty(&NILFS_I(inode)->i_dirty)) { + /* + * Add the inode to GC inode list. Garbage Collection + * is serialized and no two processes manipulate the + * list simultaneously. + */ + igrab(inode); + list_add(&NILFS_I(inode)->i_dirty, + &nilfs->ns_gc_inodes); + } + do { ret = nilfs_ioctl_move_inode_block(inode, vdesc, &buffers); -- cgit v0.10.2 From bb6f1d9a99f1947d91693de62ed54ac3bf1e2dfe Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Thu, 16 Dec 2010 17:03:13 -0600 Subject: lguest: fix crash lguest_time_init fe25c7fc2e "x86: lguest: Convert to new irq chip functions" converted enable_lguest_irq() to take a struct irq_data *, but didn't fix the one internal caller. Signed-off-by: Rusty Russell To: x86@kernel.org diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c index 73b1e1a..45e64b3 100644 --- a/arch/x86/lguest/boot.c +++ b/arch/x86/lguest/boot.c @@ -1002,7 +1002,7 @@ static void lguest_time_init(void) clockevents_register_device(&lguest_clockevent); /* Finally, we unblock the timer interrupt. */ - enable_lguest_irq(0); + clear_bit(0, lguest_data.blocked_interrupts); } /* -- cgit v0.10.2 From bb4093deb259ea9c92415796a6a139e35272f8a8 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Thu, 16 Dec 2010 17:03:15 -0600 Subject: lguest: restore boot speed lguest is dumb and drops *all* the pagetables for set_pte (which is only used for kernel mapping manipulation, so it's OK without highmem). But it's used a lot in boot, too. As a guest optimization, we suppressed this flushing until the first page switch. Now we have initial_page_table, that happens much earlier, so extend the heuristic to wait until we switch to something other than the swapper_pg_dir or initial_page_table. As measured on my laptop under kvm, this dropped the time-to-mount-root from 48 seconds to 4.3 seconds. Signed-off-by: Rusty Russell diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c index 45e64b3..24e4973 100644 --- a/arch/x86/lguest/boot.c +++ b/arch/x86/lguest/boot.c @@ -531,7 +531,10 @@ static void lguest_write_cr3(unsigned long cr3) { lguest_data.pgdir = cr3; lazy_hcall1(LHCALL_NEW_PGTABLE, cr3); - cr3_changed = true; + + /* These two page tables are simple, linear, and used during boot */ + if (cr3 != __pa(swapper_pg_dir) && cr3 != __pa(initial_page_table)) + cr3_changed = true; } static unsigned long lguest_read_cr3(void) @@ -703,9 +706,9 @@ static void lguest_set_pmd(pmd_t *pmdp, pmd_t pmdval) * to forget all of them. Fortunately, this is very rare. * * ... except in early boot when the kernel sets up the initial pagetables, - * which makes booting astonishingly slow: 1.83 seconds! So we don't even tell - * the Host anything changed until we've done the first page table switch, - * which brings boot back to 0.25 seconds. + * which makes booting astonishingly slow: 48 seconds! So we don't even tell + * the Host anything changed until we've done the first real page table switch, + * which brings boot back to 4.3 seconds. */ static void lguest_set_pte(pte_t *ptep, pte_t pteval) { -- cgit v0.10.2 From da32dac101263fb5b155407507c548e3ac2a6a2a Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Thu, 16 Dec 2010 17:03:15 -0600 Subject: lguest: populate initial_page_table Two x86 patches broke lguest: 1) v2.6.35-492-g72d7c3b, which changed x86 to use the memblock allocator. In lguest, the host places linear page tables at the top of mem, which used to be enough to get us up to the swapper_pg_dir page tables. With the first patch, the direct mapping tables used that memory: Before: kernel direct mapping tables up to 4000000 @ 7000-1a000 After: kernel direct mapping tables up to 4000000 @ 3fed000-4000000 I initially fixed this by lying about the amount of memory we had, so the kernel wouldn't blatt the lguest boot pagetables (yuk!), but then... 2) v2.6.36-rc8-54-gb40827f, which made x86 boot use initial_page_table. This was initialized in a part of head_32.S which isn't executed by lguest; it is then copied into swapper_pg_dir. So we have to initialize it; and anyway we switch to it before we blatt the old tables, so that fixes the previous damage as well. For the moment, I cut & pasted the code into lguest's boot code, but next merge window I will merge them. Signed-off-by: Rusty Russell Cc: Jeremy Fitzhardinge Cc: Konrad Rzeszutek Wilk To: x86@kernel.org diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S index bcece91..f0bea76 100644 --- a/arch/x86/kernel/head_32.S +++ b/arch/x86/kernel/head_32.S @@ -620,13 +620,13 @@ ENTRY(initial_code) __PAGE_ALIGNED_BSS .align PAGE_SIZE_asm #ifdef CONFIG_X86_PAE -initial_pg_pmd: +ENTRY(initial_pg_pmd) .fill 1024*KPMDS,4,0 #else ENTRY(initial_page_table) .fill 1024,4,0 #endif -initial_pg_fixmap: +ENTRY(initial_pg_fixmap) .fill 1024,4,0 ENTRY(empty_zero_page) .fill 4096,1,0 diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c index 24e4973..4996cf5 100644 --- a/arch/x86/lguest/boot.c +++ b/arch/x86/lguest/boot.c @@ -1352,9 +1352,6 @@ __init void lguest_init(void) */ switch_to_new_gdt(0); - /* We actually boot with all memory mapped, but let's say 128MB. */ - max_pfn_mapped = (128*1024*1024) >> PAGE_SHIFT; - /* * The Host<->Guest Switcher lives at the top of our address space, and * the Host told us how big it is when we made LGUEST_INIT hypercall: diff --git a/arch/x86/lguest/i386_head.S b/arch/x86/lguest/i386_head.S index 4f420c2f..e7d5382 100644 --- a/arch/x86/lguest/i386_head.S +++ b/arch/x86/lguest/i386_head.S @@ -4,6 +4,7 @@ #include #include #include +#include /*G:020 * Our story starts with the kernel booting into startup_32 in @@ -37,9 +38,113 @@ ENTRY(lguest_entry) /* Set up the initial stack so we can run C code. */ movl $(init_thread_union+THREAD_SIZE),%esp + call init_pagetables + /* Jumps are relative: we're running __PAGE_OFFSET too low. */ jmp lguest_init+__PAGE_OFFSET +/* + * Initialize page tables. This creates a PDE and a set of page + * tables, which are located immediately beyond __brk_base. The variable + * _brk_end is set up to point to the first "safe" location. + * Mappings are created both at virtual address 0 (identity mapping) + * and PAGE_OFFSET for up to _end. + * + * FIXME: This code is taken verbatim from arch/x86/kernel/head_32.S: they + * don't have a stack at this point, so we can't just use call and ret. + */ +init_pagetables: +#if PTRS_PER_PMD > 1 +#define PAGE_TABLE_SIZE(pages) (((pages) / PTRS_PER_PMD) + PTRS_PER_PGD) +#else +#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PGD) +#endif +#define pa(X) ((X) - __PAGE_OFFSET) + +/* Enough space to fit pagetables for the low memory linear map */ +MAPPING_BEYOND_END = \ + PAGE_TABLE_SIZE(((1<<32) - __PAGE_OFFSET) >> PAGE_SHIFT) << PAGE_SHIFT +#ifdef CONFIG_X86_PAE + + /* + * In PAE mode initial_page_table is statically defined to contain + * enough entries to cover the VMSPLIT option (that is the top 1, 2 or 3 + * entries). The identity mapping is handled by pointing two PGD entries + * to the first kernel PMD. + * + * Note the upper half of each PMD or PTE are always zero at this stage. + */ + +#define KPMDS (((-__PAGE_OFFSET) >> 30) & 3) /* Number of kernel PMDs */ + + xorl %ebx,%ebx /* %ebx is kept at zero */ + + movl $pa(__brk_base), %edi + movl $pa(initial_pg_pmd), %edx + movl $PTE_IDENT_ATTR, %eax +10: + leal PDE_IDENT_ATTR(%edi),%ecx /* Create PMD entry */ + movl %ecx,(%edx) /* Store PMD entry */ + /* Upper half already zero */ + addl $8,%edx + movl $512,%ecx +11: + stosl + xchgl %eax,%ebx + stosl + xchgl %eax,%ebx + addl $0x1000,%eax + loop 11b + + /* + * End condition: we must map up to the end + MAPPING_BEYOND_END. + */ + movl $pa(_end) + MAPPING_BEYOND_END + PTE_IDENT_ATTR, %ebp + cmpl %ebp,%eax + jb 10b +1: + addl $__PAGE_OFFSET, %edi + movl %edi, pa(_brk_end) + shrl $12, %eax + movl %eax, pa(max_pfn_mapped) + + /* Do early initialization of the fixmap area */ + movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax + movl %eax,pa(initial_pg_pmd+0x1000*KPMDS-8) +#else /* Not PAE */ + +page_pde_offset = (__PAGE_OFFSET >> 20); + + movl $pa(__brk_base), %edi + movl $pa(initial_page_table), %edx + movl $PTE_IDENT_ATTR, %eax +10: + leal PDE_IDENT_ATTR(%edi),%ecx /* Create PDE entry */ + movl %ecx,(%edx) /* Store identity PDE entry */ + movl %ecx,page_pde_offset(%edx) /* Store kernel PDE entry */ + addl $4,%edx + movl $1024, %ecx +11: + stosl + addl $0x1000,%eax + loop 11b + /* + * End condition: we must map up to the end + MAPPING_BEYOND_END. + */ + movl $pa(_end) + MAPPING_BEYOND_END + PTE_IDENT_ATTR, %ebp + cmpl %ebp,%eax + jb 10b + addl $__PAGE_OFFSET, %edi + movl %edi, pa(_brk_end) + shrl $12, %eax + movl %eax, pa(max_pfn_mapped) + + /* Do early initialization of the fixmap area */ + movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax + movl %eax,pa(initial_page_table+0xffc) +#endif + ret + /*G:055 * We create a macro which puts the assembler code between lgstart_ and lgend_ * markers. These templates are put in the .text section: they can't be -- cgit v0.10.2 From 2b3e50234eafc40a04f5f4a2b7bb24b506fd7e87 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Tue, 2 Nov 2010 19:38:53 +0000 Subject: MIPS: Swarm: Fix typo in symbol name: RTC_M4LT81 -> RTC_M41T81 Signed-off-by: Ralf Baechle diff --git a/arch/mips/sibyte/swarm/setup.c b/arch/mips/sibyte/swarm/setup.c index c308989..41707a2 100644 --- a/arch/mips/sibyte/swarm/setup.c +++ b/arch/mips/sibyte/swarm/setup.c @@ -82,7 +82,7 @@ int swarm_be_handler(struct pt_regs *regs, int is_fixup) enum swarm_rtc_type { RTC_NONE, RTC_XICOR, - RTC_M4LT81 + RTC_M41T81, }; enum swarm_rtc_type swarm_rtc_type; @@ -96,7 +96,7 @@ void read_persistent_clock(struct timespec *ts) sec = xicor_get_time(); break; - case RTC_M4LT81: + case RTC_M41T81: sec = m41t81_get_time(); break; @@ -115,7 +115,7 @@ int rtc_mips_set_time(unsigned long sec) case RTC_XICOR: return xicor_set_time(sec); - case RTC_M4LT81: + case RTC_M41T81: return m41t81_set_time(sec); case RTC_NONE: @@ -141,7 +141,7 @@ void __init plat_mem_setup(void) if (xicor_probe()) swarm_rtc_type = RTC_XICOR; if (m41t81_probe()) - swarm_rtc_type = RTC_M4LT81; + swarm_rtc_type = RTC_M41T81; #ifdef CONFIG_VT screen_info = (struct screen_info) { -- cgit v0.10.2 From a989ff898f9740651d00388c33bdf4f2a7914920 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 4 Nov 2010 11:13:59 +0000 Subject: MIPS: Don't stomp on caller's ->regs[2] in copy_thread() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We never needed that (->regs[2] is overwritten on return from syscall paths with return value of syscall, so storing it there early made no sense) and with new restart logics since d27240bf7e61d2656de18e158ec910a902030847 it has become really bad - we lose the original syscall number before the place where we decide that we might need a syscall restart. Note that for child we do need the assignment to regs[2] - it won't go through the normal return from syscall path. [Ralf: Issue found and reported by Lluís; initial investigations by me; bug finally found and patch by Al; testing by me and Lluís.] Signed-off-by: Al Viro Tested-by: Lluís Batlle i Rossell Signed-off-by: Ralf Baechle diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c index 9996094..ae167df 100644 --- a/arch/mips/kernel/process.c +++ b/arch/mips/kernel/process.c @@ -142,7 +142,6 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, childregs->regs[7] = 0; /* Clear error flag */ childregs->regs[2] = 0; /* Child gets zero as return value */ - regs->regs[2] = p->pid; if (childregs->cp0_status & ST0_CU0) { childregs->regs[28] = (unsigned long) ti; -- cgit v0.10.2 From fe749aab1d21cbb4d87527a7df8799583c233496 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Thu, 4 Nov 2010 23:25:56 +0100 Subject: MIPS: jz4740: qi_lb60: Fix gpio for the 6th row of the keyboard matrix This patch fixes the gpio number for the 6th row of the keyboard matrix. (And fixes a typo in my name...) Signed-off-by: Lars-Peter Clausen Cc: linux-mips@linux-mips.org Cc: stable@kernel.org Signed-off-by: https://patchwork.linux-mips.org/patch/1754/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/jz4740/board-qi_lb60.c b/arch/mips/jz4740/board-qi_lb60.c index 5742bb4..5c0a357 100644 --- a/arch/mips/jz4740/board-qi_lb60.c +++ b/arch/mips/jz4740/board-qi_lb60.c @@ -5,7 +5,7 @@ * * Copyright (c) 2009 Qi Hardware inc., * Author: Xiangfu Liu - * Copyright 2010, Lars-Petrer Clausen + * Copyright 2010, Lars-Peter Clausen * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 or later @@ -235,7 +235,7 @@ static const unsigned int qi_lb60_keypad_rows[] = { QI_LB60_GPIO_KEYIN(3), QI_LB60_GPIO_KEYIN(4), QI_LB60_GPIO_KEYIN(5), - QI_LB60_GPIO_KEYIN(7), + QI_LB60_GPIO_KEYIN(6), QI_LB60_GPIO_KEYIN8, }; -- cgit v0.10.2 From 1d210386f6ef9000b1cd723cf453c5eb0377e722 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Thu, 4 Nov 2010 23:25:57 +0100 Subject: MIPS: jz4740: Fix section mismatch in prom.c This patch fixes the following section mismatch: WARNING: arch/mips/built-in.o(.text+0xc): Section mismatch in reference from the function jz4740_init_cmdline() to the variable .init.data:arcs_cmdline While were at it, make jz4740_init_cmdline static as well. Signed-off-by: Lars-Peter Clausen Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1755/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/jz4740/prom.c b/arch/mips/jz4740/prom.c index cfeac15..4a70407 100644 --- a/arch/mips/jz4740/prom.c +++ b/arch/mips/jz4740/prom.c @@ -23,7 +23,7 @@ #include #include -void jz4740_init_cmdline(int argc, char *argv[]) +static __init void jz4740_init_cmdline(int argc, char *argv[]) { unsigned int count = COMMAND_LINE_SIZE - 1; int i; -- cgit v0.10.2 From 1c0d52b9b5e6ca277c13d6fece9c34ed3159423d Mon Sep 17 00:00:00 2001 From: David Daney Date: Mon, 1 Nov 2010 17:43:07 -0700 Subject: MIPS: Don't clobber personality high bits. The high bits of current->personality carry settings that we don't want to clobber on each exec. Only clobber them if the lower bits that indicate either PER_LINUX or PER_LINUX32 are invalid. The clobbering prevents us from using useful bits like ADDR_NO_RANDOMIZE. Reported-by: Camm Maguire Signed-off-by: David Daney Cc: Camm Maguire Patchwork: https://patchwork.linux-mips.org/patch/1750/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/include/asm/elf.h b/arch/mips/include/asm/elf.h index fd1d39e..455c0ac 100644 --- a/arch/mips/include/asm/elf.h +++ b/arch/mips/include/asm/elf.h @@ -249,7 +249,8 @@ extern struct mips_abi mips_abi_n32; #define SET_PERSONALITY(ex) \ do { \ - set_personality(PER_LINUX); \ + if (personality(current->personality) != PER_LINUX) \ + set_personality(PER_LINUX); \ \ current->thread.abi = &mips_abi; \ } while (0) @@ -296,6 +297,8 @@ do { \ #define SET_PERSONALITY(ex) \ do { \ + unsigned int p; \ + \ clear_thread_flag(TIF_32BIT_REGS); \ clear_thread_flag(TIF_32BIT_ADDR); \ \ @@ -304,7 +307,8 @@ do { \ else \ current->thread.abi = &mips_abi; \ \ - if (current->personality != PER_LINUX32) \ + p = personality(current->personality); \ + if (p != PER_LINUX32 && p != PER_LINUX) \ set_personality(PER_LINUX); \ } while (0) -- cgit v0.10.2 From d62c9ced7ca783e64ff4d9d3d1340cfe2284d47b Mon Sep 17 00:00:00 2001 From: David Daney Date: Mon, 1 Nov 2010 17:43:08 -0700 Subject: MIPS: compat: Don't clobber personality bits in 32-bit sys_personality(). If PER_LINUX32 has been set on a 32-bit kernel, only twiddle with the low-order personality bits, let the upper bits pass through. Signed-off-by: David Daney To: linux-mips@linux-mips.org Cc: Camm Maguire Patchwork: https://patchwork.linux-mips.org/patch/1751/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c index 6343b4a..876a75c 100644 --- a/arch/mips/kernel/linux32.c +++ b/arch/mips/kernel/linux32.c @@ -251,14 +251,15 @@ SYSCALL_DEFINE5(n32_msgrcv, int, msqid, u32, msgp, size_t, msgsz, SYSCALL_DEFINE1(32_personality, unsigned long, personality) { + unsigned int p = personality & 0xffffffff; int ret; - personality &= 0xffffffff; + if (personality(current->personality) == PER_LINUX32 && - personality == PER_LINUX) - personality = PER_LINUX32; - ret = sys_personality(personality); - if (ret == PER_LINUX32) - ret = PER_LINUX; + personality(p) == PER_LINUX) + p = (p & ~PER_MASK) | PER_LINUX32; + ret = sys_personality(p); + if (ret != -1 && personality(ret) == PER_LINUX32) + ret = (ret & ~PER_MASK) | PER_LINUX; return ret; } -- cgit v0.10.2 From 863abad4f644b6c12bc8176206b35fa7e7cfe1a9 Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Sat, 30 Oct 2010 18:37:16 +0200 Subject: MIPS: VPE loader: Check vmalloc return value in vpe_open The return value of the vmalloc() call in arch/mips/kernel/vpe.c::vpe_open() is not checked, so we potentially store a null pointer in v->pbuffer. Add a check for a null return and then return -ENOMEM in that case. [Ralf: The check added by Jesper's original patch is where it logically should be. Adding it eleminated the need for the checks in a few other places, so I removed them. There still is a zillion of other things that need to be fixed in this file / API.] Signed-off-by: Jesper Juhl Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1747/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c index 3eb3cde..6a1fdfe 100644 --- a/arch/mips/kernel/vpe.c +++ b/arch/mips/kernel/vpe.c @@ -1092,6 +1092,10 @@ static int vpe_open(struct inode *inode, struct file *filp) /* this of-course trashes what was there before... */ v->pbuffer = vmalloc(P_SIZE); + if (!v->pbuffer) { + pr_warning("VPE loader: unable to allocate memory\n"); + return -ENOMEM; + } v->plen = P_SIZE; v->load_addr = NULL; v->len = 0; @@ -1149,10 +1153,9 @@ static int vpe_release(struct inode *inode, struct file *filp) if (ret < 0) v->shared_ptr = NULL; - // cleanup any temp buffers - if (v->pbuffer) - vfree(v->pbuffer); + vfree(v->pbuffer); v->plen = 0; + return ret; } @@ -1169,11 +1172,6 @@ static ssize_t vpe_write(struct file *file, const char __user * buffer, if (v == NULL) return -ENODEV; - if (v->pbuffer == NULL) { - printk(KERN_ERR "VPE loader: no buffer for program\n"); - return -ENOMEM; - } - if ((count + v->len) > v->plen) { printk(KERN_WARNING "VPE loader: elf size too big. Perhaps strip uneeded symbols\n"); -- cgit v0.10.2 From ec79812580e360081b58c3e2e8b5b69b8080b5a0 Mon Sep 17 00:00:00 2001 From: Wu Zhangjin Date: Mon, 8 Nov 2010 21:25:24 +0800 Subject: MIPS: Loongson: Add return value check for strict_strtoul() cc1: warnings being treated as errors arch/mips/loongson/common/env.c: In function 'prom_init_env': arch/mips/loongson/common/env.c:49: error: ignoring return value of 'strict_strtol', declared with attribute warn_unused_result arch/mips/loongson/common/env.c:50: error: ignoring return value of 'strict_strtol', declared with attribute warn_unused_result arch/mips/loongson/common/env.c:51: error: ignoring return value of 'strict_strtol', declared with attribute warn_unused_result arch/mips/loongson/common/env.c:52: error: ignoring return value of 'strict_strtol', declared with attribute warn_unused_result Signed-off-by: Wu Zhangjin Cc: linux-mips Patchwork: https://patchwork.linux-mips.org/patch/1762/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/loongson/common/env.c b/arch/mips/loongson/common/env.c index ae4cff9..11b193f 100644 --- a/arch/mips/loongson/common/env.c +++ b/arch/mips/loongson/common/env.c @@ -29,9 +29,9 @@ unsigned long memsize, highmemsize; #define parse_even_earlier(res, option, p) \ do { \ + int ret; \ if (strncmp(option, (char *)p, strlen(option)) == 0) \ - strict_strtol((char *)p + strlen(option"="), \ - 10, &res); \ + ret = strict_strtol((char *)p + strlen(option"="), 10, &res); \ } while (0) void __init prom_init_env(void) -- cgit v0.10.2 From 690ca2ce0c824e8d3da7b2e273c2c873ab96d1e6 Mon Sep 17 00:00:00 2001 From: Yoichi Yuasa Date: Mon, 8 Nov 2010 17:23:52 +0900 Subject: MIPS: Alchemy: Add return value check for strict_strtoul() arch/mips/alchemy/devboards/prom.c: In function 'prom_init': arch/mips/alchemy/devboards/prom.c:60: error: ignoring return value of 'strict_strtoul', declared with attribute warn_unused_result Signed-off-by: Yoichi Yuasa Cc: linux-mips Patchwork: https://patchwork.linux-mips.org/patch/1761/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/alchemy/devboards/prom.c b/arch/mips/alchemy/devboards/prom.c index b30df5c..baeb213 100644 --- a/arch/mips/alchemy/devboards/prom.c +++ b/arch/mips/alchemy/devboards/prom.c @@ -54,10 +54,9 @@ void __init prom_init(void) prom_init_cmdline(); memsize_str = prom_getenv("memsize"); - if (!memsize_str) + if (!memsize_str || strict_strtoul(memsize_str, 0, &memsize)) memsize = ALCHEMY_BOARD_DEFAULT_MEMSIZE; - else - strict_strtoul(memsize_str, 0, &memsize); + add_memory_region(0, memsize, BOOT_MEM_RAM); } -- cgit v0.10.2 From 3bd27e329ca80f4946efdd12bf1f5a9bf0886e76 Mon Sep 17 00:00:00 2001 From: David Daney Date: Fri, 5 Nov 2010 15:12:48 -0700 Subject: MIPS: Rework GENERIC_HARDIRQS Kconfig. Recent changes to CONFIG_GENERIC_HARDIRQS have caused us to start getting: warning: (SMP && SYS_SUPPORTS_SMP) selects IRQ_PER_CPU which has unmet direct dependencies (HAVE_GENERIC_HARDIRQS) Rearranging our Kconfig quiets the message. Signed-off-by: David Daney To: linux-mips@linux-mips.org Cc: Thomas Gleixner Patchwork: https://patchwork.linux-mips.org/patch/1757/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 67a2fa2..7fc6bd1 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -19,6 +19,8 @@ config MIPS select GENERIC_ATOMIC64 if !64BIT select HAVE_DMA_ATTRS select HAVE_DMA_API_DEBUG + select HAVE_GENERIC_HARDIRQS + select GENERIC_IRQ_PROBE menu "Machine selection" @@ -1922,20 +1924,6 @@ config CPU_R4400_WORKAROUNDS bool # -# Use the generic interrupt handling code in kernel/irq/: -# -config GENERIC_HARDIRQS - bool - default y - -config GENERIC_IRQ_PROBE - bool - default y - -config IRQ_PER_CPU - bool - -# # - Highmem only makes sense for the 32-bit kernel. # - The current highmem code will only work properly on physically indexed # caches such as R3000, SB1, R7000 or those that look like they're virtually -- cgit v0.10.2 From ff42d62047e45075c54a5543bd4f110dfd032d11 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Sun, 31 Oct 2010 23:49:57 +0100 Subject: MIPS: AR7: Fix double ar7_gpio_init declaration Signed-off-by: Florian Fainelli To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1748/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/include/asm/mach-ar7/ar7.h b/arch/mips/include/asm/mach-ar7/ar7.h index 7919d76..31c7ff5 100644 --- a/arch/mips/include/asm/mach-ar7/ar7.h +++ b/arch/mips/include/asm/mach-ar7/ar7.h @@ -202,6 +202,4 @@ static inline void ar7_device_off(u32 bit) int __init ar7_gpio_init(void); -int __init ar7_gpio_init(void); - #endif /* __AR7_H__ */ -- cgit v0.10.2 From 0bc6791707694c77b3543de39f77972a65de917a Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Sun, 31 Oct 2010 23:49:58 +0100 Subject: MIPS: AR7: Fix loops per jiffies on TNETD7200 devices TNETD7200 run their CPU clock faster than the default CPU clock we assume. In order to have the correct loops per jiffies settings, initialize clocks right before setting mips_hpt_frequency. As a side effect, we can no longer use msleep in clocks.c which requires other parts of the kernel to be initialized, so replace these with mdelay. Signed-off-by: Florian Fainelli To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1749/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/ar7/clock.c b/arch/mips/ar7/clock.c index fc0e715..2ca4ada 100644 --- a/arch/mips/ar7/clock.c +++ b/arch/mips/ar7/clock.c @@ -239,12 +239,12 @@ static void tnetd7300_set_clock(u32 shift, struct tnetd7300_clock *clock, calculate(base_clock, frequency, &prediv, &postdiv, &mul); writel(((prediv - 1) << PREDIV_SHIFT) | (postdiv - 1), &clock->ctrl); - msleep(1); + mdelay(1); writel(4, &clock->pll); while (readl(&clock->pll) & PLL_STATUS) ; writel(((mul - 1) << MUL_SHIFT) | (0xff << 3) | 0x0e, &clock->pll); - msleep(75); + mdelay(75); } static void __init tnetd7300_init_clocks(void) @@ -456,7 +456,7 @@ void clk_put(struct clk *clk) } EXPORT_SYMBOL(clk_put); -int __init ar7_init_clocks(void) +void __init ar7_init_clocks(void) { switch (ar7_chip_id()) { case AR7_CHIP_7100: @@ -472,7 +472,4 @@ int __init ar7_init_clocks(void) } /* adjust vbus clock rate */ vbus_clk.rate = bus_clk.rate / 2; - - return 0; } -arch_initcall(ar7_init_clocks); diff --git a/arch/mips/ar7/time.c b/arch/mips/ar7/time.c index 5fb8a01..22c9321 100644 --- a/arch/mips/ar7/time.c +++ b/arch/mips/ar7/time.c @@ -30,6 +30,9 @@ void __init plat_time_init(void) { struct clk *cpu_clk; + /* Initialize ar7 clocks so the CPU clock frequency is correct */ + ar7_init_clocks(); + cpu_clk = clk_get(NULL, "cpu"); if (IS_ERR(cpu_clk)) { printk(KERN_ERR "unable to get cpu clock\n"); diff --git a/arch/mips/include/asm/mach-ar7/ar7.h b/arch/mips/include/asm/mach-ar7/ar7.h index 31c7ff5..07d3fad 100644 --- a/arch/mips/include/asm/mach-ar7/ar7.h +++ b/arch/mips/include/asm/mach-ar7/ar7.h @@ -201,5 +201,6 @@ static inline void ar7_device_off(u32 bit) } int __init ar7_gpio_init(void); +void __init ar7_init_clocks(void); #endif /* __AR7_H__ */ -- cgit v0.10.2 From 515b029d005b5694cf612a0a5ca6f861a7e45362 Mon Sep 17 00:00:00 2001 From: David Daney Date: Thu, 21 Oct 2010 16:32:26 -0700 Subject: MIPS: Send proper signal and siginfo on FP emulator faults. We were unconditionally sending SIGBUS with an empty siginfo on FP emulator faults. This differs from what happens when real floating point hardware would get a fault. For most faults we need to send SIGSEGV with the faulting address filled in in the struct siginfo. Reported-by: Camm Maguire Signed-off-by: David Daney To: linux-mips@linux-mips.org Cc: Camm Maguire Patchwork: https://patchwork.linux-mips.org/patch/1727/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 8e9fbe7..e971043 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -83,7 +83,8 @@ extern asmlinkage void handle_mcheck(void); extern asmlinkage void handle_reserved(void); extern int fpu_emulator_cop1Handler(struct pt_regs *xcp, - struct mips_fpu_struct *ctx, int has_fpu); + struct mips_fpu_struct *ctx, int has_fpu, + void *__user *fault_addr); void (*board_be_init)(void); int (*board_be_handler)(struct pt_regs *regs, int is_fixup); @@ -661,12 +662,36 @@ asmlinkage void do_ov(struct pt_regs *regs) force_sig_info(SIGFPE, &info, current); } +static int process_fpemu_return(int sig, void __user *fault_addr) +{ + if (sig == SIGSEGV || sig == SIGBUS) { + struct siginfo si = {0}; + si.si_addr = fault_addr; + si.si_signo = sig; + if (sig == SIGSEGV) { + if (find_vma(current->mm, (unsigned long)fault_addr)) + si.si_code = SEGV_ACCERR; + else + si.si_code = SEGV_MAPERR; + } else { + si.si_code = BUS_ADRERR; + } + force_sig_info(sig, &si, current); + return 1; + } else if (sig) { + force_sig(sig, current); + return 1; + } else { + return 0; + } +} + /* * XXX Delayed fp exceptions when doing a lazy ctx switch XXX */ asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31) { - siginfo_t info; + siginfo_t info = {0}; if (notify_die(DIE_FP, "FP exception", regs, 0, regs_to_trapnr(regs), SIGFPE) == NOTIFY_STOP) @@ -675,6 +700,7 @@ asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31) if (fcr31 & FPU_CSR_UNI_X) { int sig; + void __user *fault_addr = NULL; /* * Unimplemented operation exception. If we've got the full @@ -690,7 +716,8 @@ asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31) lose_fpu(1); /* Run the emulator */ - sig = fpu_emulator_cop1Handler(regs, ¤t->thread.fpu, 1); + sig = fpu_emulator_cop1Handler(regs, ¤t->thread.fpu, 1, + &fault_addr); /* * We can't allow the emulated instruction to leave any of @@ -702,8 +729,7 @@ asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31) own_fpu(1); /* Using the FPU again. */ /* If something went wrong, signal */ - if (sig) - force_sig(sig, current); + process_fpemu_return(sig, fault_addr); return; } else if (fcr31 & FPU_CSR_INV_X) @@ -996,11 +1022,11 @@ asmlinkage void do_cpu(struct pt_regs *regs) if (!raw_cpu_has_fpu) { int sig; + void __user *fault_addr = NULL; sig = fpu_emulator_cop1Handler(regs, - ¤t->thread.fpu, 0); - if (sig) - force_sig(sig, current); - else + ¤t->thread.fpu, + 0, &fault_addr); + if (!process_fpemu_return(sig, fault_addr)) mt_ase_fp_affinity(); } diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c index b2ad1b0..d32cb05 100644 --- a/arch/mips/math-emu/cp1emu.c +++ b/arch/mips/math-emu/cp1emu.c @@ -64,7 +64,7 @@ static int fpu_emu(struct pt_regs *, struct mips_fpu_struct *, #if __mips >= 4 && __mips != 32 static int fpux_emu(struct pt_regs *, - struct mips_fpu_struct *, mips_instruction); + struct mips_fpu_struct *, mips_instruction, void *__user *); #endif /* Further private data for which no space exists in mips_fpu_struct */ @@ -208,16 +208,23 @@ static inline int cop1_64bit(struct pt_regs *xcp) * Two instructions if the instruction is in a branch delay slot. */ -static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx) +static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx, + void *__user *fault_addr) { mips_instruction ir; unsigned long emulpc, contpc; unsigned int cond; - if (get_user(ir, (mips_instruction __user *) xcp->cp0_epc)) { + if (!access_ok(VERIFY_READ, xcp->cp0_epc, sizeof(mips_instruction))) { MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = (mips_instruction __user *)xcp->cp0_epc; return SIGBUS; } + if (__get_user(ir, (mips_instruction __user *) xcp->cp0_epc)) { + MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = (mips_instruction __user *)xcp->cp0_epc; + return SIGSEGV; + } /* XXX NEC Vr54xx bug workaround */ if ((xcp->cp0_cause & CAUSEF_BD) && !isBranchInstr(&ir)) @@ -245,10 +252,16 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx) #endif return SIGILL; } - if (get_user(ir, (mips_instruction __user *) emulpc)) { + if (!access_ok(VERIFY_READ, emulpc, sizeof(mips_instruction))) { MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = (mips_instruction __user *)emulpc; return SIGBUS; } + if (__get_user(ir, (mips_instruction __user *) emulpc)) { + MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = (mips_instruction __user *)emulpc; + return SIGSEGV; + } /* __compute_return_epc() will have updated cp0_epc */ contpc = xcp->cp0_epc; /* In order not to confuse ptrace() et al, tweak context */ @@ -269,10 +282,17 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx) u64 val; MIPS_FPU_EMU_INC_STATS(loads); - if (get_user(val, va)) { + + if (!access_ok(VERIFY_READ, va, sizeof(u64))) { MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = va; return SIGBUS; } + if (__get_user(val, va)) { + MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = va; + return SIGSEGV; + } DITOREG(val, MIPSInst_RT(ir)); break; } @@ -284,10 +304,16 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx) MIPS_FPU_EMU_INC_STATS(stores); DIFROMREG(val, MIPSInst_RT(ir)); - if (put_user(val, va)) { + if (!access_ok(VERIFY_WRITE, va, sizeof(u64))) { MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = va; return SIGBUS; } + if (__put_user(val, va)) { + MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = va; + return SIGSEGV; + } break; } @@ -297,10 +323,16 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx) u32 val; MIPS_FPU_EMU_INC_STATS(loads); - if (get_user(val, va)) { + if (!access_ok(VERIFY_READ, va, sizeof(u32))) { MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = va; return SIGBUS; } + if (__get_user(val, va)) { + MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = va; + return SIGSEGV; + } SITOREG(val, MIPSInst_RT(ir)); break; } @@ -312,10 +344,16 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx) MIPS_FPU_EMU_INC_STATS(stores); SIFROMREG(val, MIPSInst_RT(ir)); - if (put_user(val, va)) { + if (!access_ok(VERIFY_WRITE, va, sizeof(u32))) { MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = va; return SIGBUS; } + if (__put_user(val, va)) { + MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = va; + return SIGSEGV; + } break; } @@ -440,11 +478,18 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx) contpc = (xcp->cp0_epc + (MIPSInst_SIMM(ir) << 2)); - if (get_user(ir, - (mips_instruction __user *) xcp->cp0_epc)) { + if (!access_ok(VERIFY_READ, xcp->cp0_epc, + sizeof(mips_instruction))) { MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = (mips_instruction __user *)xcp->cp0_epc; return SIGBUS; } + if (__get_user(ir, + (mips_instruction __user *) xcp->cp0_epc)) { + MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = (mips_instruction __user *)xcp->cp0_epc; + return SIGSEGV; + } switch (MIPSInst_OPCODE(ir)) { case lwc1_op: @@ -506,9 +551,8 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx) #if __mips >= 4 && __mips != 32 case cop1x_op:{ - int sig; - - if ((sig = fpux_emu(xcp, ctx, ir))) + int sig = fpux_emu(xcp, ctx, ir, fault_addr); + if (sig) return sig; break; } @@ -604,7 +648,7 @@ DEF3OP(nmadd, dp, ieee754dp_mul, ieee754dp_add, ieee754dp_neg); DEF3OP(nmsub, dp, ieee754dp_mul, ieee754dp_sub, ieee754dp_neg); static int fpux_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx, - mips_instruction ir) + mips_instruction ir, void *__user *fault_addr) { unsigned rcsr = 0; /* resulting csr */ @@ -624,10 +668,16 @@ static int fpux_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx, xcp->regs[MIPSInst_FT(ir)]); MIPS_FPU_EMU_INC_STATS(loads); - if (get_user(val, va)) { + if (!access_ok(VERIFY_READ, va, sizeof(u32))) { MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = va; return SIGBUS; } + if (__get_user(val, va)) { + MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = va; + return SIGSEGV; + } SITOREG(val, MIPSInst_FD(ir)); break; @@ -638,10 +688,16 @@ static int fpux_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx, MIPS_FPU_EMU_INC_STATS(stores); SIFROMREG(val, MIPSInst_FS(ir)); - if (put_user(val, va)) { + if (!access_ok(VERIFY_WRITE, va, sizeof(u32))) { MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = va; return SIGBUS; } + if (put_user(val, va)) { + MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = va; + return SIGSEGV; + } break; case madd_s_op: @@ -701,10 +757,16 @@ static int fpux_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx, xcp->regs[MIPSInst_FT(ir)]); MIPS_FPU_EMU_INC_STATS(loads); - if (get_user(val, va)) { + if (!access_ok(VERIFY_READ, va, sizeof(u64))) { MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = va; return SIGBUS; } + if (__get_user(val, va)) { + MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = va; + return SIGSEGV; + } DITOREG(val, MIPSInst_FD(ir)); break; @@ -714,10 +776,16 @@ static int fpux_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx, MIPS_FPU_EMU_INC_STATS(stores); DIFROMREG(val, MIPSInst_FS(ir)); - if (put_user(val, va)) { + if (!access_ok(VERIFY_WRITE, va, sizeof(u64))) { MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = va; return SIGBUS; } + if (__put_user(val, va)) { + MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = va; + return SIGSEGV; + } break; case madd_d_op: @@ -1242,7 +1310,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx, } int fpu_emulator_cop1Handler(struct pt_regs *xcp, struct mips_fpu_struct *ctx, - int has_fpu) + int has_fpu, void *__user *fault_addr) { unsigned long oldepc, prevepc; mips_instruction insn; @@ -1252,10 +1320,16 @@ int fpu_emulator_cop1Handler(struct pt_regs *xcp, struct mips_fpu_struct *ctx, do { prevepc = xcp->cp0_epc; - if (get_user(insn, (mips_instruction __user *) xcp->cp0_epc)) { + if (!access_ok(VERIFY_READ, xcp->cp0_epc, sizeof(mips_instruction))) { MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = (mips_instruction __user *)xcp->cp0_epc; return SIGBUS; } + if (__get_user(insn, (mips_instruction __user *) xcp->cp0_epc)) { + MIPS_FPU_EMU_INC_STATS(errors); + *fault_addr = (mips_instruction __user *)xcp->cp0_epc; + return SIGSEGV; + } if (insn == 0) xcp->cp0_epc += 4; /* skip nops */ else { @@ -1267,7 +1341,7 @@ int fpu_emulator_cop1Handler(struct pt_regs *xcp, struct mips_fpu_struct *ctx, */ /* convert to ieee library modes */ ieee754_csr.rm = ieee_rm[ieee754_csr.rm]; - sig = cop1Emulate(xcp, ctx); + sig = cop1Emulate(xcp, ctx, fault_addr); /* revert to mips rounding mode */ ieee754_csr.rm = mips_rm[ieee754_csr.rm]; } -- cgit v0.10.2 From e5674ad6ca9f1020c2bcc009a55becba3c30d8a3 Mon Sep 17 00:00:00 2001 From: Tony Wu Date: Wed, 10 Nov 2010 21:48:15 +0800 Subject: MIPS: Separate two consecutive loads in memset.S partial_fixup is used in noreorder block. Separating two consecutive loads can save one cycle on processors with GPR intrelock and can fix load-use on processors that need a load delay slot. Also do so for fwd_fixup. [Ralf: Only R2000/R3000 class processors are lacking the the load-user interlock and even some of those got it retrofitted. With R2000/R3000 being fairly uncommon these days the impact of this bug should be minor.] Signed-off-by: Tony Wu To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1768/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/lib/memset.S b/arch/mips/lib/memset.S index 77dc3b2..606c8a9 100644 --- a/arch/mips/lib/memset.S +++ b/arch/mips/lib/memset.S @@ -161,16 +161,16 @@ FEXPORT(__bzero) .Lfwd_fixup: PTR_L t0, TI_TASK($28) - LONG_L t0, THREAD_BUADDR(t0) andi a2, 0x3f + LONG_L t0, THREAD_BUADDR(t0) LONG_ADDU a2, t1 jr ra LONG_SUBU a2, t0 .Lpartial_fixup: PTR_L t0, TI_TASK($28) - LONG_L t0, THREAD_BUADDR(t0) andi a2, LONGMASK + LONG_L t0, THREAD_BUADDR(t0) LONG_ADDU a2, t1 jr ra LONG_SUBU a2, t0 -- cgit v0.10.2 From 4afdea81821880d0fc35e6c7ff54eeed9ec0614d Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Thu, 11 Nov 2010 19:08:52 +0100 Subject: MIPS: JZ4740: Fix pcm device name As part the ASoC multi-component patch (commit f0fba2ad) the jz4740 pcm driver was renamed to 'jz4740-pcm-audio'. Adjust the device name accordingly. Signed-off-by: Lars-Peter Clausen Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1770/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/jz4740/platform.c b/arch/mips/jz4740/platform.c index 95bc2b5..1cc9e54 100644 --- a/arch/mips/jz4740/platform.c +++ b/arch/mips/jz4740/platform.c @@ -208,7 +208,7 @@ struct platform_device jz4740_i2s_device = { /* PCM */ struct platform_device jz4740_pcm_device = { - .name = "jz4740-pcm", + .name = "jz4740-pcm-audio", .id = -1, }; -- cgit v0.10.2 From 190fca3e40a65303eac35ac4fbae4f1f1342431c Mon Sep 17 00:00:00 2001 From: Kevin Cernekee Date: Tue, 23 Nov 2010 10:26:45 -0800 Subject: MIPS: Fix regression on BCM4710 processor detection BCM4710 uses the BMIPS32 core (like BCM6345), not the MIPS 4Kc core as was previously believed. Signed-off-by: Kevin Cernekee Tested-by: Alexandros C. Couloumbis Patchwork: https://patchwork.linux-mips.org/patch/1837/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h index 06d59dc..8687753 100644 --- a/arch/mips/include/asm/cpu.h +++ b/arch/mips/include/asm/cpu.h @@ -111,8 +111,8 @@ * These are the PRID's for when 23:16 == PRID_COMP_BROADCOM */ -#define PRID_IMP_BMIPS4KC 0x4000 -#define PRID_IMP_BMIPS32 0x8000 +#define PRID_IMP_BMIPS32_REV4 0x4000 +#define PRID_IMP_BMIPS32_REV8 0x8000 #define PRID_IMP_BMIPS3300 0x9000 #define PRID_IMP_BMIPS3300_ALT 0x9100 #define PRID_IMP_BMIPS3300_BUG 0x0000 diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 71620e1..68dae7b 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -905,7 +905,8 @@ static inline void cpu_probe_broadcom(struct cpuinfo_mips *c, unsigned int cpu) { decode_configs(c); switch (c->processor_id & 0xff00) { - case PRID_IMP_BMIPS32: + case PRID_IMP_BMIPS32_REV4: + case PRID_IMP_BMIPS32_REV8: c->cputype = CPU_BMIPS32; __cpu_name[cpu] = "Broadcom BMIPS32"; break; @@ -933,10 +934,6 @@ static inline void cpu_probe_broadcom(struct cpuinfo_mips *c, unsigned int cpu) __cpu_name[cpu] = "Broadcom BMIPS5000"; c->options |= MIPS_CPU_ULRI; break; - case PRID_IMP_BMIPS4KC: - c->cputype = CPU_4KC; - __cpu_name[cpu] = "MIPS 4Kc"; - break; } } -- cgit v0.10.2 From 5878fc936aebf592cca418ca50773cd578f7daf4 Mon Sep 17 00:00:00 2001 From: Kevin Cernekee Date: Tue, 23 Nov 2010 10:26:44 -0800 Subject: MIPS: Fix CP0 COUNTER clockevent race Consider the following test case: write_c0_compare(read_c0_count()); Even if the counter doesn't increment during execution, this might not generate an interrupt until the counter wraps around. The CPU may perform the comparison each time CP0 COUNT increments, not when CP0 COMPARE is written. If mips_next_event() is called with a very small delta, and CP0 COUNT increments during the calculation of "cnt += delta", it is possible that CP0 COMPARE will be written with the current value of CP0 COUNT. If this is detected, the function should return -ETIME, to indicate that the interrupt might not have actually gotten scheduled. Signed-off-by: Kevin Cernekee Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1836/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/kernel/cevt-r4k.c b/arch/mips/kernel/cevt-r4k.c index 2f4d7a9..98c5a97 100644 --- a/arch/mips/kernel/cevt-r4k.c +++ b/arch/mips/kernel/cevt-r4k.c @@ -32,7 +32,7 @@ static int mips_next_event(unsigned long delta, cnt = read_c0_count(); cnt += delta; write_c0_compare(cnt); - res = ((int)(read_c0_count() - cnt) > 0) ? -ETIME : 0; + res = ((int)(read_c0_count() - cnt) >= 0) ? -ETIME : 0; return res; } -- cgit v0.10.2 From e31fee7c3a197d88d1d0ced0e8600386da27fec4 Mon Sep 17 00:00:00 2001 From: Thomas Chou Date: Wed, 24 Nov 2010 15:35:48 +0800 Subject: MIPS: FDT size is a be32 The totalsize field was be32. And the reserve bootmem would cause failure. Signed-off-by: Thomas Chou To: devicetree-discuss@lists.ozlabs.org Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: grant.likely@secretlab.ca Cc: David Daney Cc: Dezhong Diao Patchwork: https://patchwork.linux-mips.org/patch/1838/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/kernel/prom.c b/arch/mips/kernel/prom.c index e000b27..9dbe583 100644 --- a/arch/mips/kernel/prom.c +++ b/arch/mips/kernel/prom.c @@ -100,7 +100,7 @@ void __init device_tree_init(void) return; base = virt_to_phys((void *)initial_boot_params); - size = initial_boot_params->totalsize; + size = be32_to_cpu(initial_boot_params->totalsize); /* Before we do anything, lets reserve the dt blob */ reserve_mem_mach(base, size); -- cgit v0.10.2 From 825710843640dd173bc4b2ea99f1296923e4aa06 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Sat, 27 Nov 2010 17:45:58 +0100 Subject: MIPS: BCM47xx: Do not read config from CFE The config options read out here are not stored in CFE but only in NVRAM on the devices. Remove reading from CFE and only access the NVRAM. Reading out CFE does not harm but is useless here. Signed-off-by: Hauke Mehrtens To: linux-mips@linux-mips.org Cc: Hauke Mehrtens Patchwork: https://patchwork.linux-mips.org/patch/1845/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c index b1aee33..2c6bdad 100644 --- a/arch/mips/bcm47xx/setup.c +++ b/arch/mips/bcm47xx/setup.c @@ -32,7 +32,6 @@ #include #include #include -#include #include struct ssb_bus ssb_bcm47xx; @@ -82,42 +81,33 @@ static int bcm47xx_get_invariants(struct ssb_bus *bus, /* Fill boardinfo structure */ memset(&(iv->boardinfo), 0 , sizeof(struct ssb_boardinfo)); - if (cfe_getenv("boardvendor", buf, sizeof(buf)) >= 0 || - nvram_getenv("boardvendor", buf, sizeof(buf)) >= 0) + if (nvram_getenv("boardvendor", buf, sizeof(buf)) >= 0) iv->boardinfo.type = (u16)simple_strtoul(buf, NULL, 0); - if (cfe_getenv("boardtype", buf, sizeof(buf)) >= 0 || - nvram_getenv("boardtype", buf, sizeof(buf)) >= 0) + if (nvram_getenv("boardtype", buf, sizeof(buf)) >= 0) iv->boardinfo.type = (u16)simple_strtoul(buf, NULL, 0); - if (cfe_getenv("boardrev", buf, sizeof(buf)) >= 0 || - nvram_getenv("boardrev", buf, sizeof(buf)) >= 0) + if (nvram_getenv("boardrev", buf, sizeof(buf)) >= 0) iv->boardinfo.rev = (u16)simple_strtoul(buf, NULL, 0); /* Fill sprom structure */ memset(&(iv->sprom), 0, sizeof(struct ssb_sprom)); iv->sprom.revision = 3; - if (cfe_getenv("et0macaddr", buf, sizeof(buf)) >= 0 || - nvram_getenv("et0macaddr", buf, sizeof(buf)) >= 0) + if (nvram_getenv("et0macaddr", buf, sizeof(buf)) >= 0) str2eaddr(buf, iv->sprom.et0mac); - if (cfe_getenv("et1macaddr", buf, sizeof(buf)) >= 0 || - nvram_getenv("et1macaddr", buf, sizeof(buf)) >= 0) + if (nvram_getenv("et1macaddr", buf, sizeof(buf)) >= 0) str2eaddr(buf, iv->sprom.et1mac); - if (cfe_getenv("et0phyaddr", buf, sizeof(buf)) >= 0 || - nvram_getenv("et0phyaddr", buf, sizeof(buf)) >= 0) + if (nvram_getenv("et0phyaddr", buf, sizeof(buf)) >= 0) iv->sprom.et0phyaddr = simple_strtoul(buf, NULL, 0); - if (cfe_getenv("et1phyaddr", buf, sizeof(buf)) >= 0 || - nvram_getenv("et1phyaddr", buf, sizeof(buf)) >= 0) + if (nvram_getenv("et1phyaddr", buf, sizeof(buf)) >= 0) iv->sprom.et1phyaddr = simple_strtoul(buf, NULL, 0); - if (cfe_getenv("et0mdcport", buf, sizeof(buf)) >= 0 || - nvram_getenv("et0mdcport", buf, sizeof(buf)) >= 0) + if (nvram_getenv("et0mdcport", buf, sizeof(buf)) >= 0) iv->sprom.et0mdcport = simple_strtoul(buf, NULL, 10); - if (cfe_getenv("et1mdcport", buf, sizeof(buf)) >= 0 || - nvram_getenv("et1mdcport", buf, sizeof(buf)) >= 0) + if (nvram_getenv("et1mdcport", buf, sizeof(buf)) >= 0) iv->sprom.et1mdcport = simple_strtoul(buf, NULL, 10); return 0; -- cgit v0.10.2 From 2aa088d6fd8a6c6e6020ea46b70141f0b7ccf5d2 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Sat, 27 Nov 2010 17:45:59 +0100 Subject: MIPS: BCM47xx: Fill values for b43 into SSB sprom Fill the sprom with all available values from the nvram. Most of these new values are needed for the b43 or b43legacy driver. Parts of this patch have been in OpenWRT for a long time and were written by Michael Buesch. Signed-off-by: Hauke Mehrtens To: linux-mips@linux-mips.org Cc: Hauke Mehrtens Patchwork: https://patchwork.linux-mips.org/patch/1846/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c index 2c6bdad..1f61dfd 100644 --- a/arch/mips/bcm47xx/setup.c +++ b/arch/mips/bcm47xx/setup.c @@ -73,42 +73,112 @@ static void str2eaddr(char *str, char *dest) } } +#define READ_FROM_NVRAM(_outvar, name, buf) \ + if (nvram_getenv(name, buf, sizeof(buf)) >= 0)\ + sprom->_outvar = simple_strtoul(buf, NULL, 0); + +static void bcm47xx_fill_sprom(struct ssb_sprom *sprom) +{ + char buf[100]; + u32 boardflags; + + memset(sprom, 0, sizeof(struct ssb_sprom)); + + sprom->revision = 1; /* Fallback: Old hardware does not define this. */ + READ_FROM_NVRAM(revision, "sromrev", buf); + if (nvram_getenv("il0macaddr", buf, sizeof(buf)) >= 0) + str2eaddr(buf, sprom->il0mac); + if (nvram_getenv("et0macaddr", buf, sizeof(buf)) >= 0) + str2eaddr(buf, sprom->et0mac); + if (nvram_getenv("et1macaddr", buf, sizeof(buf)) >= 0) + str2eaddr(buf, sprom->et1mac); + READ_FROM_NVRAM(et0phyaddr, "et0phyaddr", buf); + READ_FROM_NVRAM(et1phyaddr, "et1phyaddr", buf); + READ_FROM_NVRAM(et0mdcport, "et0mdcport", buf); + READ_FROM_NVRAM(et1mdcport, "et1mdcport", buf); + READ_FROM_NVRAM(board_rev, "boardrev", buf); + READ_FROM_NVRAM(country_code, "ccode", buf); + READ_FROM_NVRAM(ant_available_a, "aa5g", buf); + READ_FROM_NVRAM(ant_available_bg, "aa2g", buf); + READ_FROM_NVRAM(pa0b0, "pa0b0", buf); + READ_FROM_NVRAM(pa0b1, "pa0b1", buf); + READ_FROM_NVRAM(pa0b2, "pa0b2", buf); + READ_FROM_NVRAM(pa1b0, "pa1b0", buf); + READ_FROM_NVRAM(pa1b1, "pa1b1", buf); + READ_FROM_NVRAM(pa1b2, "pa1b2", buf); + READ_FROM_NVRAM(pa1lob0, "pa1lob0", buf); + READ_FROM_NVRAM(pa1lob2, "pa1lob1", buf); + READ_FROM_NVRAM(pa1lob1, "pa1lob2", buf); + READ_FROM_NVRAM(pa1hib0, "pa1hib0", buf); + READ_FROM_NVRAM(pa1hib2, "pa1hib1", buf); + READ_FROM_NVRAM(pa1hib1, "pa1hib2", buf); + READ_FROM_NVRAM(gpio0, "wl0gpio0", buf); + READ_FROM_NVRAM(gpio1, "wl0gpio1", buf); + READ_FROM_NVRAM(gpio2, "wl0gpio2", buf); + READ_FROM_NVRAM(gpio3, "wl0gpio3", buf); + READ_FROM_NVRAM(maxpwr_bg, "pa0maxpwr", buf); + READ_FROM_NVRAM(maxpwr_al, "pa1lomaxpwr", buf); + READ_FROM_NVRAM(maxpwr_a, "pa1maxpwr", buf); + READ_FROM_NVRAM(maxpwr_ah, "pa1himaxpwr", buf); + READ_FROM_NVRAM(itssi_a, "pa1itssit", buf); + READ_FROM_NVRAM(itssi_bg, "pa0itssit", buf); + READ_FROM_NVRAM(tri2g, "tri2g", buf); + READ_FROM_NVRAM(tri5gl, "tri5gl", buf); + READ_FROM_NVRAM(tri5g, "tri5g", buf); + READ_FROM_NVRAM(tri5gh, "tri5gh", buf); + READ_FROM_NVRAM(rxpo2g, "rxpo2g", buf); + READ_FROM_NVRAM(rxpo5g, "rxpo5g", buf); + READ_FROM_NVRAM(rssisav2g, "rssisav2g", buf); + READ_FROM_NVRAM(rssismc2g, "rssismc2g", buf); + READ_FROM_NVRAM(rssismf2g, "rssismf2g", buf); + READ_FROM_NVRAM(bxa2g, "bxa2g", buf); + READ_FROM_NVRAM(rssisav5g, "rssisav5g", buf); + READ_FROM_NVRAM(rssismc5g, "rssismc5g", buf); + READ_FROM_NVRAM(rssismf5g, "rssismf5g", buf); + READ_FROM_NVRAM(bxa5g, "bxa5g", buf); + READ_FROM_NVRAM(cck2gpo, "cck2gpo", buf); + READ_FROM_NVRAM(ofdm2gpo, "ofdm2gpo", buf); + READ_FROM_NVRAM(ofdm5glpo, "ofdm5glpo", buf); + READ_FROM_NVRAM(ofdm5gpo, "ofdm5gpo", buf); + READ_FROM_NVRAM(ofdm5ghpo, "ofdm5ghpo", buf); + + if (nvram_getenv("boardflags", buf, sizeof(buf)) >= 0) { + boardflags = simple_strtoul(buf, NULL, 0); + if (boardflags) { + sprom->boardflags_lo = (boardflags & 0x0000FFFFU); + sprom->boardflags_hi = (boardflags & 0xFFFF0000U) >> 16; + } + } + if (nvram_getenv("boardflags2", buf, sizeof(buf)) >= 0) { + boardflags = simple_strtoul(buf, NULL, 0); + if (boardflags) { + sprom->boardflags2_lo = (boardflags & 0x0000FFFFU); + sprom->boardflags2_hi = (boardflags & 0xFFFF0000U) >> 16; + } + } +} + static int bcm47xx_get_invariants(struct ssb_bus *bus, struct ssb_init_invariants *iv) { - char buf[100]; + char buf[20]; /* Fill boardinfo structure */ memset(&(iv->boardinfo), 0 , sizeof(struct ssb_boardinfo)); if (nvram_getenv("boardvendor", buf, sizeof(buf)) >= 0) - iv->boardinfo.type = (u16)simple_strtoul(buf, NULL, 0); + iv->boardinfo.vendor = (u16)simple_strtoul(buf, NULL, 0); + else + iv->boardinfo.vendor = SSB_BOARDVENDOR_BCM; if (nvram_getenv("boardtype", buf, sizeof(buf)) >= 0) iv->boardinfo.type = (u16)simple_strtoul(buf, NULL, 0); if (nvram_getenv("boardrev", buf, sizeof(buf)) >= 0) iv->boardinfo.rev = (u16)simple_strtoul(buf, NULL, 0); - /* Fill sprom structure */ - memset(&(iv->sprom), 0, sizeof(struct ssb_sprom)); - iv->sprom.revision = 3; - - if (nvram_getenv("et0macaddr", buf, sizeof(buf)) >= 0) - str2eaddr(buf, iv->sprom.et0mac); - - if (nvram_getenv("et1macaddr", buf, sizeof(buf)) >= 0) - str2eaddr(buf, iv->sprom.et1mac); - - if (nvram_getenv("et0phyaddr", buf, sizeof(buf)) >= 0) - iv->sprom.et0phyaddr = simple_strtoul(buf, NULL, 0); - - if (nvram_getenv("et1phyaddr", buf, sizeof(buf)) >= 0) - iv->sprom.et1phyaddr = simple_strtoul(buf, NULL, 0); - - if (nvram_getenv("et0mdcport", buf, sizeof(buf)) >= 0) - iv->sprom.et0mdcport = simple_strtoul(buf, NULL, 10); + bcm47xx_fill_sprom(&iv->sprom); - if (nvram_getenv("et1mdcport", buf, sizeof(buf)) >= 0) - iv->sprom.et1mdcport = simple_strtoul(buf, NULL, 10); + if (nvram_getenv("cardbus", buf, sizeof(buf)) >= 0) + iv->has_cardbus_slot = !!simple_strtoul(buf, NULL, 10); return 0; } -- cgit v0.10.2 From 59833fcf48ee7b7c8a01e590aa7b7212305c3077 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Sat, 27 Nov 2010 17:46:00 +0100 Subject: MIPS: BCM47xx: Use sscanf for parsing mac address Instead of writing own function for parsing the mac address we now use sscanf. Signed-off-by: Hauke Mehrtens To: linux-mips@linux-mips.org Cc: Hauke Mehrtens Patchwork: https://patchwork.linux-mips.org/patch/1847/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c index 1f61dfd..87a3055 100644 --- a/arch/mips/bcm47xx/setup.c +++ b/arch/mips/bcm47xx/setup.c @@ -56,23 +56,6 @@ static void bcm47xx_machine_halt(void) cpu_relax(); } -static void str2eaddr(char *str, char *dest) -{ - int i = 0; - - if (str == NULL) { - memset(dest, 0, 6); - return; - } - - for (;;) { - dest[i++] = (char) simple_strtoul(str, NULL, 16); - str += 2; - if (!*str++ || i == 6) - break; - } -} - #define READ_FROM_NVRAM(_outvar, name, buf) \ if (nvram_getenv(name, buf, sizeof(buf)) >= 0)\ sprom->_outvar = simple_strtoul(buf, NULL, 0); @@ -87,11 +70,11 @@ static void bcm47xx_fill_sprom(struct ssb_sprom *sprom) sprom->revision = 1; /* Fallback: Old hardware does not define this. */ READ_FROM_NVRAM(revision, "sromrev", buf); if (nvram_getenv("il0macaddr", buf, sizeof(buf)) >= 0) - str2eaddr(buf, sprom->il0mac); + nvram_parse_macaddr(buf, sprom->il0mac); if (nvram_getenv("et0macaddr", buf, sizeof(buf)) >= 0) - str2eaddr(buf, sprom->et0mac); + nvram_parse_macaddr(buf, sprom->et0mac); if (nvram_getenv("et1macaddr", buf, sizeof(buf)) >= 0) - str2eaddr(buf, sprom->et1mac); + nvram_parse_macaddr(buf, sprom->et1mac); READ_FROM_NVRAM(et0phyaddr, "et0phyaddr", buf); READ_FROM_NVRAM(et1phyaddr, "et1phyaddr", buf); READ_FROM_NVRAM(et0mdcport, "et0mdcport", buf); diff --git a/arch/mips/include/asm/mach-bcm47xx/nvram.h b/arch/mips/include/asm/mach-bcm47xx/nvram.h index c58ebd8..9759588 100644 --- a/arch/mips/include/asm/mach-bcm47xx/nvram.h +++ b/arch/mips/include/asm/mach-bcm47xx/nvram.h @@ -12,6 +12,7 @@ #define __NVRAM_H #include +#include struct nvram_header { u32 magic; @@ -36,4 +37,10 @@ struct nvram_header { extern int nvram_getenv(char *name, char *val, size_t val_len); +static inline void nvram_parse_macaddr(char *buf, u8 *macaddr) +{ + sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", &macaddr[0], &macaddr[1], + &macaddr[2], &macaddr[3], &macaddr[4], &macaddr[5]); +} + #endif -- cgit v0.10.2 From 1690a7f9ab83f5c823f3044275a4a771a059d5bb Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Sat, 27 Nov 2010 17:46:01 +0100 Subject: MIPS: BCM47xx: Swap serial console if ttyS1 was specified. Some devices like the Netgear WGT634U are using ttyS1 for default console output. We should switch to that console if it was given in the kernel_args parameters. Signed-off-by: Hauke Mehrtens To: linux-mips@linux-mips.org Cc: Hauke Mehrtens Patchwork: https://patchwork.linux-mips.org/patch/1848/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c index 87a3055..c95f90b 100644 --- a/arch/mips/bcm47xx/setup.c +++ b/arch/mips/bcm47xx/setup.c @@ -169,12 +169,28 @@ static int bcm47xx_get_invariants(struct ssb_bus *bus, void __init plat_mem_setup(void) { int err; + char buf[100]; + struct ssb_mipscore *mcore; err = ssb_bus_ssbbus_register(&ssb_bcm47xx, SSB_ENUM_BASE, bcm47xx_get_invariants); if (err) panic("Failed to initialize SSB bus (err %d)\n", err); + mcore = &ssb_bcm47xx.mipscore; + if (nvram_getenv("kernel_args", buf, sizeof(buf)) >= 0) { + if (strstr(buf, "console=ttyS1")) { + struct ssb_serial_port port; + + printk(KERN_DEBUG "Swapping serial ports!\n"); + /* swap serial ports */ + memcpy(&port, &mcore->serial_ports[0], sizeof(port)); + memcpy(&mcore->serial_ports[0], &mcore->serial_ports[1], + sizeof(port)); + memcpy(&mcore->serial_ports[1], &port, sizeof(port)); + } + } + _machine_restart = bcm47xx_machine_restart; _machine_halt = bcm47xx_machine_halt; pm_power_off = bcm47xx_machine_halt; -- cgit v0.10.2 From 3f84622d7c7818077f5e6cf4b8a0d1b10dc65147 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Sat, 27 Nov 2010 19:26:32 +0100 Subject: SSB: Fix nvram_get on BCM47xx platform The nvram_get function was never in the mainline kernel, it only existed in an external OpenWrt patch. Use nvram_getenv function, which is in mainline and use an include instead of an extra function declaration. et0macaddr contains the mac address in text from like 00:11:22:33:44:55. We have to parse it before adding it into macaddr. nvram_parse_macaddr will be merged into asm/mach-bcm47xx/nvram.h through the MIPS git tree and will be available soon. It will not build now without nvram_parse_macaddr, but it hasn't before either. Signed-off-by: Hauke Mehrtens To: linux-mips@linux-mips.org Cc: mb@bu3sch.de Cc: netdev@vger.kernel.org Cc: Hauke Mehrtens Acked-by: Michael Buesch Patchwork: https://patchwork.linux-mips.org/patch/1849/ Signed-off-by: Ralf Baechle diff --git a/include/linux/ssb/ssb_driver_gige.h b/include/linux/ssb/ssb_driver_gige.h index 942e387..eba52a1 100644 --- a/include/linux/ssb/ssb_driver_gige.h +++ b/include/linux/ssb/ssb_driver_gige.h @@ -96,16 +96,21 @@ static inline bool ssb_gige_must_flush_posted_writes(struct pci_dev *pdev) return 0; } -extern char * nvram_get(const char *name); +#ifdef CONFIG_BCM47XX +#include /* Get the device MAC address */ static inline void ssb_gige_get_macaddr(struct pci_dev *pdev, u8 *macaddr) { -#ifdef CONFIG_BCM47XX - char *res = nvram_get("et0macaddr"); - if (res) - memcpy(macaddr, res, 6); -#endif + char buf[20]; + if (nvram_getenv("et0macaddr", buf, sizeof(buf)) < 0) + return; + nvram_parse_macaddr(buf, macaddr); } +#else +static inline void ssb_gige_get_macaddr(struct pci_dev *pdev, u8 *macaddr) +{ +} +#endif extern int ssb_gige_pcibios_plat_dev_init(struct ssb_device *sdev, struct pci_dev *pdev); -- cgit v0.10.2 From d002aaadf84c081623a0a8502c122d1492fbd47c Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Wed, 1 Dec 2010 17:33:17 +0000 Subject: MIPS: MT: Fix typo in comment. Signed-off-by: Ralf Baechle diff --git a/arch/mips/kernel/smp-mt.c b/arch/mips/kernel/smp-mt.c index 43e7cdc5..c0e8141 100644 --- a/arch/mips/kernel/smp-mt.c +++ b/arch/mips/kernel/smp-mt.c @@ -153,7 +153,7 @@ static void __cpuinit vsmp_init_secondary(void) { extern int gic_present; - /* This is Malta specific: IPI,performance and timer inetrrupts */ + /* This is Malta specific: IPI,performance and timer interrupts */ if (gic_present) change_c0_status(ST0_IM, STATUSF_IP3 | STATUSF_IP4 | STATUSF_IP6 | STATUSF_IP7); -- cgit v0.10.2 From a3aad4aaf871045ab1dd9c99be6c1ace881d8eb0 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Thu, 9 Dec 2010 19:14:09 +0000 Subject: MIPS: Rename mips_dma_cache_sync back to dma_cache_sync This fixes IP22 and IP28 build errors. Signed-off-by: Ralf Baechle diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c index 4fc1a0f..21ea14e 100644 --- a/arch/mips/mm/dma-default.c +++ b/arch/mips/mm/dma-default.c @@ -288,7 +288,7 @@ int mips_dma_supported(struct device *dev, u64 mask) return plat_dma_supported(dev, mask); } -void mips_dma_cache_sync(struct device *dev, void *vaddr, size_t size, +void dma_cache_sync(struct device *dev, void *vaddr, size_t size, enum dma_data_direction direction) { BUG_ON(direction == DMA_NONE); @@ -298,6 +298,8 @@ void mips_dma_cache_sync(struct device *dev, void *vaddr, size_t size, __dma_sync((unsigned long)vaddr, size, direction); } +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, -- cgit v0.10.2 From cf745a39dcb10ef80c4a2ff38448f57b69d4c4eb Mon Sep 17 00:00:00 2001 From: Manuel Lauss Date: Mon, 25 Oct 2010 18:44:11 +0200 Subject: MIPS: Alchemy: fix build with SERIAL_8250=n In commit 7d172bfe ("Alchemy: Add UART PM methods") I introduced platform PM methods which call a function of the 8250 driver; this patch works around link failures when the kernel is built without 8250 support. Signed-off-by: Manuel Lauss To: Linux-MIPS Patchwork: https://patchwork.linux-mips.org/patch/1737/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/alchemy/common/platform.c b/arch/mips/alchemy/common/platform.c index 3691630..9e7814d 100644 --- a/arch/mips/alchemy/common/platform.c +++ b/arch/mips/alchemy/common/platform.c @@ -27,6 +27,7 @@ static void alchemy_8250_pm(struct uart_port *port, unsigned int state, unsigned int old_state) { +#ifdef CONFIG_SERIAL_8250 switch (state) { case 0: if ((__raw_readl(port->membase + UART_MOD_CNTRL) & 3) != 3) { @@ -49,6 +50,7 @@ static void alchemy_8250_pm(struct uart_port *port, unsigned int state, serial8250_do_pm(port, state, old_state); break; } +#endif } #define PORT(_base, _irq) \ -- cgit v0.10.2 From 82b89152f00f7ad17844d5614d5011e8d7944ac9 Mon Sep 17 00:00:00 2001 From: "Maciej W. Rozycki" Date: Sun, 10 Oct 2010 10:42:12 +0100 Subject: MIPS: LD/SD o32 macro GAS fix update I am about to commit: http://sourceware.org/ml/binutils/2010-10/msg00033.html that fixes a problem with the LD/SD macro currently implemented by GAS for the o32 ABI in an inconsistent way. This is best illustrated with a simple program, which I'm copying here from the message above for easier reference: $ cat ld.s ld $5,32767($4) ld $5,32768($4) This gets assebled into the following output: $ mips-linux-as -32 -mips3 -o ld.o ld.s $ mips-linux-objdump -d ld.o ld.o: file format elf32-tradbigmips Disassembly of section .text: 00000000 <.text>: 0: dc857fff ld a1,32767(a0) 4: 3c010001 lui at,0x1 8: 00810821 addu at,a0,at c: 8c258000 lw a1,-32768(at) 10: 8c268004 lw a2,-32764(at) ... Oops! The GAS fix makes the macro behave in a consistent way and pairs of LW/SW instructions to be output as appropriate regardless of the size of the offset associated with the address used. The machine instruction is still available, but to reach it macros have to be disabled first. This has a side effect of requiring the use of a machine-addressable memory operand. As some platforms require 64-bit operations for accesses to some I/O registers LD/SD instructions are used in a couple of places in Linux regardless of the ABI selected. Here's a fix for some pieces of code affected I've been able to track down. The fix should be backwards compatible with all supported binutils releases in existence and can be used as a reference for any other places or off-tree code. The use of the "R" constraint guarantees a machine-addressable operand. Signed-off-by: Maciej W. Rozycki Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1680/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h index c98bf51..5b017f2 100644 --- a/arch/mips/include/asm/io.h +++ b/arch/mips/include/asm/io.h @@ -329,10 +329,14 @@ static inline void pfx##write##bwlq(type val, \ "dsrl32 %L0, %L0, 0" "\n\t" \ "dsll32 %M0, %M0, 0" "\n\t" \ "or %L0, %L0, %M0" "\n\t" \ + ".set push" "\n\t" \ + ".set noreorder" "\n\t" \ + ".set nomacro" "\n\t" \ "sd %L0, %2" "\n\t" \ + ".set pop" "\n\t" \ ".set mips0" "\n" \ : "=r" (__tmp) \ - : "0" (__val), "m" (*__mem)); \ + : "0" (__val), "R" (*__mem)); \ if (irq) \ local_irq_restore(__flags); \ } else \ @@ -355,12 +359,16 @@ static inline type pfx##read##bwlq(const volatile void __iomem *mem) \ local_irq_save(__flags); \ __asm__ __volatile__( \ ".set mips3" "\t\t# __readq" "\n\t" \ + ".set push" "\n\t" \ + ".set noreorder" "\n\t" \ + ".set nomacro" "\n\t" \ "ld %L0, %1" "\n\t" \ + ".set pop" "\n\t" \ "dsra32 %M0, %L0, 0" "\n\t" \ "sll %L0, %L0, 0" "\n\t" \ ".set mips0" "\n" \ : "=r" (__val) \ - : "m" (*__mem)); \ + : "R" (*__mem)); \ if (irq) \ local_irq_restore(__flags); \ } else { \ diff --git a/arch/mips/pmc-sierra/yosemite/py-console.c b/arch/mips/pmc-sierra/yosemite/py-console.c index b7f1d9c..434d7b1 100644 --- a/arch/mips/pmc-sierra/yosemite/py-console.c +++ b/arch/mips/pmc-sierra/yosemite/py-console.c @@ -65,11 +65,15 @@ static unsigned char readb_outer_space(unsigned long long phys) __asm__ __volatile__ ( " .set mips3 \n" + " .set push \n" + " .set noreorder \n" + " .set nomacro \n" " ld %0, %1 \n" + " .set pop \n" " lbu %0, (%0) \n" " .set mips0 \n" : "=r" (res) - : "m" (vaddr)); + : "R" (vaddr)); write_c0_status(sr); ssnop_4(); @@ -89,11 +93,15 @@ static void writeb_outer_space(unsigned long long phys, unsigned char c) __asm__ __volatile__ ( " .set mips3 \n" + " .set push \n" + " .set noreorder \n" + " .set nomacro \n" " ld %0, %1 \n" + " .set pop \n" " sb %2, (%0) \n" " .set mips0 \n" : "=&r" (tmp) - : "m" (vaddr), "r" (c)); + : "R" (vaddr), "r" (c)); write_c0_status(sr); ssnop_4(); -- cgit v0.10.2 From c9bace7ca1e2aeb95754ebc92c8f88a9f215691d Mon Sep 17 00:00:00 2001 From: David Daney Date: Mon, 11 Oct 2010 14:52:45 -0700 Subject: MIPS: Add a CONFIG_FORCE_MAX_ZONEORDER Kconfig option. For huge page support with base page size of 16K or 32K, we have to increase the MAX_ORDER so that huge pages can be allocated. [Ralf: I don't think a user should have to configure obscure constants like this but for the time being this will have to suffice.] Signed-off-by: David Daney To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1685/ Signed-off-by: Ralf Baechle diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 7fc6bd1..0a9b5b8 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -1666,6 +1666,28 @@ config PAGE_SIZE_64KB endchoice +config FORCE_MAX_ZONEORDER + int "Maximum zone order" + range 13 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB + default "13" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB + range 12 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB + default "12" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB + range 11 64 + default "11" + help + The kernel memory allocator divides physically contiguous memory + blocks into "zones", where each zone is a power of two number of + pages. This option selects the largest power of two that the kernel + keeps in the memory allocator. If you need to allocate very large + blocks of physically contiguous memory, then you may need to + increase this value. + + This config option is actually maximum order plus one. For example, + a value of 11 means that the largest free memory block is 2^10 pages. + + The page size is not necessarily 4KB. Keep this in mind + when choosing a value for this option. + config BOARD_SCACHE bool -- cgit v0.10.2 From a663ffff1d2e94a7c549a37d08ed9169ce83bdd6 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Mon, 6 Dec 2010 11:39:59 -0600 Subject: percpu: Generic support for this_cpu_add, sub, dec, inc_return Introduce generic support for this_cpu_add_return etc. The fallback is to realize these operations with simpler __this_cpu_ops. tj: - Reformatted __cpu_size_call_return2() to make it more consistent with its neighbors. - Dropped unnecessary temp variable ret__ from __this_cpu_generic_add_return(). Reviewed-by: Tejun Heo Reviewed-by: Mathieu Desnoyers Acked-by: H. Peter Anvin Signed-off-by: Christoph Lameter Signed-off-by: Tejun Heo diff --git a/include/linux/percpu.h b/include/linux/percpu.h index 5095b83..4d593de 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -240,6 +240,21 @@ extern void __bad_size_call_parameter(void); pscr_ret__; \ }) +#define __pcpu_size_call_return2(stem, variable, ...) \ +({ \ + typeof(variable) pscr2_ret__; \ + __verify_pcpu_ptr(&(variable)); \ + switch(sizeof(variable)) { \ + case 1: pscr2_ret__ = stem##1(variable, __VA_ARGS__); break; \ + case 2: pscr2_ret__ = stem##2(variable, __VA_ARGS__); break; \ + case 4: pscr2_ret__ = stem##4(variable, __VA_ARGS__); break; \ + case 8: pscr2_ret__ = stem##8(variable, __VA_ARGS__); break; \ + default: \ + __bad_size_call_parameter(); break; \ + } \ + pscr2_ret__; \ +}) + #define __pcpu_size_call(stem, variable, ...) \ do { \ __verify_pcpu_ptr(&(variable)); \ @@ -529,6 +544,62 @@ do { \ # define __this_cpu_xor(pcp, val) __pcpu_size_call(__this_cpu_xor_, (pcp), (val)) #endif +#define _this_cpu_generic_add_return(pcp, val) \ +({ \ + typeof(pcp) ret__; \ + preempt_disable(); \ + __this_cpu_add(pcp, val); \ + ret__ = __this_cpu_read(pcp); \ + preempt_enable(); \ + ret__; \ +}) + +#ifndef this_cpu_add_return +# ifndef this_cpu_add_return_1 +# define this_cpu_add_return_1(pcp, val) _this_cpu_generic_add_return(pcp, val) +# endif +# ifndef this_cpu_add_return_2 +# define this_cpu_add_return_2(pcp, val) _this_cpu_generic_add_return(pcp, val) +# endif +# ifndef this_cpu_add_return_4 +# define this_cpu_add_return_4(pcp, val) _this_cpu_generic_add_return(pcp, val) +# endif +# ifndef this_cpu_add_return_8 +# define this_cpu_add_return_8(pcp, val) _this_cpu_generic_add_return(pcp, val) +# endif +# define this_cpu_add_return(pcp, val) __pcpu_size_call_return2(this_cpu_add_return_, pcp, val) +#endif + +#define this_cpu_sub_return(pcp, val) this_cpu_add_return(pcp, -(val)) +#define this_cpu_inc_return(pcp) this_cpu_add_return(pcp, 1) +#define this_cpu_dec_return(pcp) this_cpu_add_return(pcp, -1) + +#define __this_cpu_generic_add_return(pcp, val) \ +({ \ + __this_cpu_add(pcp, val); \ + __this_cpu_read(pcp); \ +}) + +#ifndef __this_cpu_add_return +# ifndef __this_cpu_add_return_1 +# define __this_cpu_add_return_1(pcp, val) __this_cpu_generic_add_return(pcp, val) +# endif +# ifndef __this_cpu_add_return_2 +# define __this_cpu_add_return_2(pcp, val) __this_cpu_generic_add_return(pcp, val) +# endif +# ifndef __this_cpu_add_return_4 +# define __this_cpu_add_return_4(pcp, val) __this_cpu_generic_add_return(pcp, val) +# endif +# ifndef __this_cpu_add_return_8 +# define __this_cpu_add_return_8(pcp, val) __this_cpu_generic_add_return(pcp, val) +# endif +# define __this_cpu_add_return(pcp, val) __pcpu_size_call_return2(this_cpu_add_return_, pcp, val) +#endif + +#define __this_cpu_sub_return(pcp, val) this_cpu_add_return(pcp, -(val)) +#define __this_cpu_inc_return(pcp) this_cpu_add_return(pcp, 1) +#define __this_cpu_dec_return(pcp) this_cpu_add_return(pcp, -1) + /* * IRQ safe versions of the per cpu RMW operations. Note that these operations * are *not* safe against modification of the same variable from another -- cgit v0.10.2 From 8f1d97c79eb65de1d05799d6b81d79cd94169114 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Mon, 6 Dec 2010 11:40:00 -0600 Subject: x86: Support for this_cpu_add, sub, dec, inc_return Supply an implementation for x86 in order to generate more efficient code. V2->V3: - Cleanup - Remove strange type checking from percpu_add_return_op. tj: - Dropped unused typedef from percpu_add_return_op(). - Renamed ret__ to paro_ret__ in percpu_add_return_op(). - Minor indentation adjustments. Acked-by: H. Peter Anvin Signed-off-by: Christoph Lameter Signed-off-by: Tejun Heo diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h index f899e01..38f9e96 100644 --- a/arch/x86/include/asm/percpu.h +++ b/arch/x86/include/asm/percpu.h @@ -177,6 +177,39 @@ do { \ } \ } while (0) +/* + * Add return operation + */ +#define percpu_add_return_op(var, val) \ +({ \ + typeof(var) paro_ret__ = val; \ + switch (sizeof(var)) { \ + case 1: \ + asm("xaddb %0, "__percpu_arg(1) \ + : "+q" (paro_ret__), "+m" (var) \ + : : "memory"); \ + break; \ + case 2: \ + asm("xaddw %0, "__percpu_arg(1) \ + : "+r" (paro_ret__), "+m" (var) \ + : : "memory"); \ + break; \ + case 4: \ + asm("xaddl %0, "__percpu_arg(1) \ + : "+r" (paro_ret__), "+m" (var) \ + : : "memory"); \ + break; \ + case 8: \ + asm("xaddq %0, "__percpu_arg(1) \ + : "+re" (paro_ret__), "+m" (var) \ + : : "memory"); \ + break; \ + default: __bad_percpu_size(); \ + } \ + paro_ret__ += val; \ + paro_ret__; \ +}) + #define percpu_from_op(op, var, constraint) \ ({ \ typeof(var) pfo_ret__; \ @@ -300,6 +333,14 @@ do { \ #define irqsafe_cpu_xor_2(pcp, val) percpu_to_op("xor", (pcp), val) #define irqsafe_cpu_xor_4(pcp, val) percpu_to_op("xor", (pcp), val) +#ifndef CONFIG_M386 +#define __this_cpu_add_return_1(pcp, val) percpu_add_return_op(pcp, val) +#define __this_cpu_add_return_2(pcp, val) percpu_add_return_op(pcp, val) +#define __this_cpu_add_return_4(pcp, val) percpu_add_return_op(pcp, val) +#define this_cpu_add_return_1(pcp, val) percpu_add_return_op(pcp, val) +#define this_cpu_add_return_2(pcp, val) percpu_add_return_op(pcp, val) +#define this_cpu_add_return_4(pcp, val) percpu_add_return_op(pcp, val) +#endif /* * Per cpu atomic 64 bit operations are only available under 64 bit. * 32 bit must fall back to generic operations. @@ -324,6 +365,8 @@ do { \ #define irqsafe_cpu_or_8(pcp, val) percpu_to_op("or", (pcp), val) #define irqsafe_cpu_xor_8(pcp, val) percpu_to_op("xor", (pcp), val) +#define __this_cpu_add_return_8(pcp, val) percpu_add_return_op(pcp, val) +#define this_cpu_add_return_8(pcp, val) percpu_add_return_op(pcp, val) #endif /* This is not atomic against other CPUs -- CPU preemption needs to be off */ -- cgit v0.10.2