From 6ac6b475c56ce4bbaf36b02db7d1372f2e17aeec Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Sat, 28 Sep 2013 15:34:57 +0100 Subject: extcon: arizona: Get pdata from arizona structure not device In the case of a device tree system there will be no pdata attached to the device, causing us to deference a NULL pointer. Better to take the pdata from the Arizona structure as this will always exist and we know will have been populated since it is populated by the MFD device which binds in the extcon driver. Signed-off-by: Charles Keepax Signed-off-by: Chanwoo Choi diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c index 3c55ec8..a287cec 100644 --- a/drivers/extcon/extcon-arizona.c +++ b/drivers/extcon/extcon-arizona.c @@ -1082,7 +1082,7 @@ static void arizona_micd_set_level(struct arizona *arizona, int index, static int arizona_extcon_probe(struct platform_device *pdev) { struct arizona *arizona = dev_get_drvdata(pdev->dev.parent); - struct arizona_pdata *pdata; + struct arizona_pdata *pdata = &arizona->pdata; struct arizona_extcon_info *info; unsigned int val; int jack_irq_fall, jack_irq_rise; @@ -1091,8 +1091,6 @@ static int arizona_extcon_probe(struct platform_device *pdev) if (!arizona->dapm || !arizona->dapm->card) return -EPROBE_DEFER; - pdata = dev_get_platdata(arizona->dev); - info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL); if (!info) { dev_err(&pdev->dev, "Failed to allocate memory\n"); -- cgit v0.10.2 From 7585ca0dc950583be7fc62099ca43a0c9551a875 Mon Sep 17 00:00:00 2001 From: "Wang, Xiaoming" Date: Fri, 1 Nov 2013 18:48:14 -0400 Subject: extcon: remove freed groups caused the panic or warning in unregister flow (edev->extcon_dev_type.groups) has been freed before device_unregister. extcon_dev_unregister -> kfree(edev->extcon_dev_type.groups) then device_unregister -> device_del -> device_remove_attrs -> device_remove_groups(dev, type->groups); panic because type->groups has been freed. This patch is move device_unregister ahead of groups free to avoid panic in extcon_dev_unregister. stack [ 22.847226] BUG: unable to handle kernel paging request at 5f39746e [ 22.847234] IP: [] sysfs_remove_group+0x2d/0xd0 [ 22.847238] *pdpt = 0000000000000000 *pde = 0000000000000000 [ 22.847241] Oops: 0000 [#1] PREEMPT SMP [ 22.847244] Modules linked in: [ 22.847249] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 3.10.16-261140-g6533774 #1 [ 22.847251] task: f3078000 ti: f3072000 task.ti: f3072000 [ 22.847254] EIP: 0060:[] EFLAGS: 00010206 CPU: 0 [ 22.847257] EIP is at sysfs_remove_group+0x2d/0xd0 [ 22.847259] EAX: 00000004 EBX: 5f39746e ECX: 00000000 EDX: f2773560 [ 22.847261] ESI: f2653b80 EDI: f2773560 EBP: f3073c90 ESP: f3073c70 [ 22.847263] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 [ 22.847264] CR0: 8005003b CR2: 5f39746e CR3: 020e5000 CR4: 001007f0 [ 22.847266] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 22.847268] DR6: ffff0ff0 DR7: 00000400 [ 22.847269] Stack: [ 22.847276] c13848c9 c1ae3805 f3073c80 f24ddc4c 00000246 f2773e88 f1c44408 f2531340 [ 22.847283] f3073ca0 c16935ca f1c44400 f27d3340 f3073cb4 c1693858 f24ddc44 f1c44400 [ 22.847289] f1c4420c f3073cc8 c1693f76 f1c44400 00000001 00000000 f3073ce8 c1694011 [ 22.847290] Call Trace: [ 22.847295] [] ? sysfs_hash_and_remove+0x49/0xa0 [ 22.847300] [] ? sub_preempt_count+0x55/0xe0 [ 22.847306] [] device_remove_groups+0x2a/0x40 [ 22.847309] [] device_remove_attrs+0x38/0x60 [ 22.847313] [] device_del+0xd6/0x150 [ 22.847316] [] device_unregister+0x21/0x60 [ 22.847320] [] ? sysfs_remove_link+0x18/0x30 [ 22.847323] [] ? class_compat_remove_link+0x34/0x50 [ 22.847329] [] extcon_dev_unregister+0xf9/0x130 [ 22.847333] [] pwrsrc_extcon_dev_reg_callback+0x7f/0xa0 [ 22.847337] [] notifier_call_chain+0x43/0x60 [ 22.847343] [] __blocking_notifier_call_chain+0x41/0x80 [ 22.847347] [] blocking_notifier_call_chain+0x1f/0x30 [ 22.847351] [] extcon_dev_notify_add_device+0x19/0x20 [ 22.847354] [] extcon_dev_register+0x134/0x580 [ 22.847358] [] ? sub_preempt_count+0x55/0xe0 [ 22.847363] [] ? gpiod_request+0x6a/0x1d0 [ 22.847368] [] ? kmem_cache_alloc_trace+0xaa/0x170 [ 22.847372] [] ? fsa9285_probe+0x99/0x3f0 [ 22.847375] [] ? fsa9285_irq_handler+0xf0/0xf0 [ 22.847379] [] fsa9285_probe+0xbf/0x3f0 [ 22.847383] [] ? fsa9285_irq_handler+0xf0/0xf0 [ 22.847388] [] i2c_device_probe+0x7e/0xf0 [ 22.847392] [] ? sysfs_create_link+0x22/0x40 [ 22.847395] [] ? driver_sysfs_add+0x72/0xa0 [ 22.847399] [] driver_probe_device+0x79/0x360 [ 22.847403] [] __driver_attach+0x91/0xa0 [ 22.847407] [] ? driver_probe_device+0x360/0x360 [ 22.847410] [] bus_for_each_dev+0x42/0x80 [ 22.847414] [] driver_attach+0x1e/0x20 [ 22.847417] [] ? driver_probe_device+0x360/0x360 [ 22.847420] [] bus_add_driver+0xef/0x270 [ 22.847425] [] ? i2c_device_probe+0xf0/0xf0 [ 22.847428] [] ? i2c_device_probe+0xf0/0xf0 [ 22.847432] [] driver_register+0x6a/0x160 [ 22.847436] [] ? mutex_unlock+0xd/0x10 [ 22.847440] [] ? __create_file+0x122/0x2a0 [ 22.847446] [] ? extcon_class_init+0x15/0x15 [ 22.847450] [] i2c_register_driver+0x2b/0xd0 [ 22.847454] [] ? debugfs_create_file+0x35/0x40 [ 22.847458] [] ? extcon_class_init+0x15/0x15 [ 22.847461] [] fsa9285_extcon_init+0x11/0x29 [ 22.847465] [] do_one_initcall+0xba/0x170 [ 22.847471] [] kernel_init_freeable+0x119/0x1b8 [ 22.847475] [] ? do_early_param+0x7a/0x7a [ 22.847480] [] kernel_init+0x10/0xd0 [ 22.847485] [] ret_from_kernel_thread+0x1b/0x28 [ 22.847488] [] ? rest_init+0x80/0x80 Tested-by: Liu, Chuansheng Reviewed-by: Liu, Chuansheng Signed-off-by: xiaoming wang Signed-off-by: Zhang Dongxing Signed-off-by: Chanwoo Choi diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c index 15443d3..7632233 100644 --- a/drivers/extcon/extcon-class.c +++ b/drivers/extcon/extcon-class.c @@ -792,6 +792,8 @@ void extcon_dev_unregister(struct extcon_dev *edev) return; } + device_unregister(&edev->dev); + if (edev->mutually_exclusive && edev->max_supported) { for (index = 0; edev->mutually_exclusive[index]; index++) @@ -812,7 +814,6 @@ void extcon_dev_unregister(struct extcon_dev *edev) if (switch_class) class_compat_remove_link(switch_class, &edev->dev, NULL); #endif - device_unregister(&edev->dev); put_device(&edev->dev); } EXPORT_SYMBOL_GPL(extcon_dev_unregister); -- cgit v0.10.2 From bd6dc8f65481267383aa026b30f3379d224f4a7d Mon Sep 17 00:00:00 2001 From: Sudeep Dutt Date: Wed, 27 Nov 2013 08:58:38 -0800 Subject: misc: mic: Change mic_notify(...) to return true. virtqueue_{kick()/notify()} methods are required to return bool due to API changes introduced in commit 5b1bf7cb673a. Reported-by: Fengguang Wu Reported-by: Geert Uytterhoeven Reviewed-by: Ashutosh Dixit Signed-off-by: Sudeep Dutt Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/misc/mic/card/mic_virtio.c b/drivers/misc/mic/card/mic_virtio.c index 8aa42e7..1ebc51c 100644 --- a/drivers/misc/mic/card/mic_virtio.c +++ b/drivers/misc/mic/card/mic_virtio.c @@ -187,11 +187,12 @@ static void mic_reset(struct virtio_device *vdev) /* * The virtio_ring code calls this API when it wants to notify the Host. */ -static void mic_notify(struct virtqueue *vq) +static bool mic_notify(struct virtqueue *vq) { struct mic_vdev *mvdev = vq->priv; mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db); + return true; } static void mic_del_vq(struct virtqueue *vq, int n) -- cgit v0.10.2 From 9420b3485aa5748e171f2cedf35cc8f5a6a01c4b Mon Sep 17 00:00:00 2001 From: Sudeep Dutt Date: Wed, 27 Nov 2013 08:58:39 -0800 Subject: misc: mic: Minor bug fix in 'retry' loops. The bug would result in incorrect 'retry' value being printed in debug statements as well as dead code in mic_find_vqs(...) in drivers/misc/mic/card/mic_virtio.c. Reported-by: Michael Opdenacker Reviewed-by: Ashutosh Dixit Signed-off-by: Sudeep Dutt Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/misc/mic/card/mic_virtio.c b/drivers/misc/mic/card/mic_virtio.c index 1ebc51c..4dce912 100644 --- a/drivers/misc/mic/card/mic_virtio.c +++ b/drivers/misc/mic/card/mic_virtio.c @@ -154,14 +154,14 @@ static void mic_reset_inform_host(struct virtio_device *vdev) { struct mic_vdev *mvdev = to_micvdev(vdev); struct mic_device_ctrl __iomem *dc = mvdev->dc; - int retry = 100, i; + int retry; iowrite8(0, &dc->host_ack); iowrite8(1, &dc->vdev_reset); mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db); /* Wait till host completes all card accesses and acks the reset */ - for (i = retry; i--;) { + for (retry = 100; retry--;) { if (ioread8(&dc->host_ack)) break; msleep(100); @@ -310,7 +310,7 @@ static int mic_find_vqs(struct virtio_device *vdev, unsigned nvqs, { struct mic_vdev *mvdev = to_micvdev(vdev); struct mic_device_ctrl __iomem *dc = mvdev->dc; - int i, err, retry = 100; + int i, err, retry; /* We must have this many virtqueues. */ if (nvqs > ioread8(&mvdev->desc->num_vq)) @@ -332,7 +332,7 @@ static int mic_find_vqs(struct virtio_device *vdev, unsigned nvqs, * rings have been re-assigned. */ mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db); - for (i = retry; i--;) { + for (retry = 100; retry--;) { if (!ioread8(&dc->used_address_updated)) break; msleep(100); diff --git a/drivers/misc/mic/host/mic_virtio.c b/drivers/misc/mic/host/mic_virtio.c index 5b8494b..945a3d0 100644 --- a/drivers/misc/mic/host/mic_virtio.c +++ b/drivers/misc/mic/host/mic_virtio.c @@ -378,7 +378,7 @@ int mic_virtio_config_change(struct mic_vdev *mvdev, void __user *argp) { DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wake); - int ret = 0, retry = 100, i; + int ret = 0, retry, i; struct mic_bootparam *bootparam = mvdev->mdev->dp; s8 db = bootparam->h2c_config_db; @@ -401,7 +401,7 @@ int mic_virtio_config_change(struct mic_vdev *mvdev, mvdev->dc->config_change = MIC_VIRTIO_PARAM_CONFIG_CHANGED; mvdev->mdev->ops->send_intr(mvdev->mdev, db); - for (i = retry; i--;) { + for (retry = 100; retry--;) { ret = wait_event_timeout(wake, mvdev->dc->guest_ack, msecs_to_jiffies(100)); if (ret) @@ -639,7 +639,7 @@ void mic_virtio_del_device(struct mic_vdev *mvdev) struct mic_vdev *tmp_mvdev; struct mic_device *mdev = mvdev->mdev; DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wake); - int i, ret, retry = 100; + int i, ret, retry; struct mic_vqconfig *vqconfig; struct mic_bootparam *bootparam = mdev->dp; s8 db; @@ -652,16 +652,16 @@ void mic_virtio_del_device(struct mic_vdev *mvdev) "Requesting hot remove id %d\n", mvdev->virtio_id); mvdev->dc->config_change = MIC_VIRTIO_PARAM_DEV_REMOVE; mdev->ops->send_intr(mdev, db); - for (i = retry; i--;) { + for (retry = 100; retry--;) { ret = wait_event_timeout(wake, mvdev->dc->guest_ack, msecs_to_jiffies(100)); if (ret) break; } dev_dbg(mdev->sdev->parent, - "Device id %d config_change %d guest_ack %d\n", + "Device id %d config_change %d guest_ack %d retry %d\n", mvdev->virtio_id, mvdev->dc->config_change, - mvdev->dc->guest_ack); + mvdev->dc->guest_ack, retry); mvdev->dc->config_change = 0; mvdev->dc->guest_ack = 0; skip_hot_remove: -- cgit v0.10.2 From 286c24028c7f2df637323e672d9aa54a07b67bde Mon Sep 17 00:00:00 2001 From: Ashutosh Dixit Date: Wed, 27 Nov 2013 08:58:40 -0800 Subject: misc: mic: Bug fix for sysfs poll usage. MIC user space daemon poll's on sysfs changes. The documentation for sysfs_poll(...) in fs/sysfs/file.c states that "Once poll/select indicates that the value has changed, you need to close and re-open the file, or seek to 0 and read again". This step was missed out earlier and resulted in the daemon spinning continuously rather than getting blocked in 'poll'. This bug was exposed by commit aea585ef8fa65163 introduced as part of sysfs changes in 3.13-rc1. A seek to 0 has been introduced to fix it. Reviewed-by: Sudeep Dutt Signed-off-by: Ashutosh Dixit Signed-off-by: Greg Kroah-Hartman diff --git a/Documentation/mic/mpssd/mpssd.c b/Documentation/mic/mpssd/mpssd.c index 0c980ad..5c7fdda 100644 --- a/Documentation/mic/mpssd/mpssd.c +++ b/Documentation/mic/mpssd/mpssd.c @@ -1412,6 +1412,12 @@ mic_config(void *arg) } do { + ret = lseek(fd, 0, SEEK_SET); + if (ret < 0) { + mpsslog("%s: Failed to seek to file start '%s': %s\n", + mic->name, pathname, strerror(errno)); + goto close_error1; + } ret = read(fd, value, sizeof(value)); if (ret < 0) { mpsslog("%s: Failed to read sysfs entry '%s': %s\n", -- cgit v0.10.2 From 1e31aa9270daab40c7aef9d5488982e3475b87ef Mon Sep 17 00:00:00 2001 From: Ashutosh Dixit Date: Wed, 27 Nov 2013 08:58:41 -0800 Subject: misc: mic: Fix user space namespace pollution from mic_common.h. Avoid declaring ALIGN() and __aligned() in include/uapi/linux/mic_common.h since they pollute user space namespace. Also, mic_aligned_size() can be simply replaced simply by sizeof() since all structures where mic_aligned_size() is used are declared using __attribute__ ((aligned(8))); -- >From mail from H Peter Anvin about this: On Fri, Nov 08, 2013 H Peter Anvin wrote: Subject: Namespace pollution in mic_common.h This puts two macros, ALIGN() and __aligned(), into arbitrary user space namespace. This really isn't safe or acceptable, especially since those symbols are highly generic. ... When these structures are forced-aligned, they will in fact have padding automatically added by the compiler to an 8-byte boundary anyway, so mic_aligned_size() does nothing. ... Reported-by: H Peter Anvin Reviewed-by: Sudeep Dutt Signed-off-by: Nikhil Rao Signed-off-by: Ashutosh Dixit Signed-off-by: Greg Kroah-Hartman diff --git a/Documentation/mic/mpssd/mpssd.c b/Documentation/mic/mpssd/mpssd.c index 5c7fdda..91f9e8e 100644 --- a/Documentation/mic/mpssd/mpssd.c +++ b/Documentation/mic/mpssd/mpssd.c @@ -313,7 +313,7 @@ static struct mic_device_desc *get_device_desc(struct mic_info *mic, int type) int i; void *dp = get_dp(mic, type); - for (i = mic_aligned_size(struct mic_bootparam); i < PAGE_SIZE; + for (i = sizeof(struct mic_bootparam); i < PAGE_SIZE; i += mic_total_desc_size(d)) { d = dp + i; @@ -520,7 +520,7 @@ static void * virtio_net(void *arg) { static __u8 vnet_hdr[2][sizeof(struct virtio_net_hdr)]; - static __u8 vnet_buf[2][MAX_NET_PKT_SIZE] __aligned(64); + static __u8 vnet_buf[2][MAX_NET_PKT_SIZE] __attribute__ ((aligned(64))); struct iovec vnet_iov[2][2] = { { { .iov_base = vnet_hdr[0], .iov_len = sizeof(vnet_hdr[0]) }, { .iov_base = vnet_buf[0], .iov_len = sizeof(vnet_buf[0]) } }, diff --git a/drivers/misc/mic/card/mic_virtio.c b/drivers/misc/mic/card/mic_virtio.c index 4dce912..20c567b 100644 --- a/drivers/misc/mic/card/mic_virtio.c +++ b/drivers/misc/mic/card/mic_virtio.c @@ -520,8 +520,8 @@ static void mic_scan_devices(struct mic_driver *mdrv, bool remove) struct device *dev; int ret; - for (i = mic_aligned_size(struct mic_bootparam); - i < MIC_DP_SIZE; i += mic_total_desc_size(d)) { + for (i = sizeof(struct mic_bootparam); i < MIC_DP_SIZE; + i += mic_total_desc_size(d)) { d = mdrv->dp + i; dc = (void __iomem *)d + mic_aligned_desc_size(d); /* diff --git a/drivers/misc/mic/card/mic_virtio.h b/drivers/misc/mic/card/mic_virtio.h index 2c5c22c..d0407ba 100644 --- a/drivers/misc/mic/card/mic_virtio.h +++ b/drivers/misc/mic/card/mic_virtio.h @@ -42,8 +42,8 @@ static inline unsigned mic_desc_size(struct mic_device_desc __iomem *desc) { - return mic_aligned_size(*desc) - + ioread8(&desc->num_vq) * mic_aligned_size(struct mic_vqconfig) + return sizeof(*desc) + + ioread8(&desc->num_vq) * sizeof(struct mic_vqconfig) + ioread8(&desc->feature_len) * 2 + ioread8(&desc->config_len); } @@ -67,8 +67,7 @@ mic_vq_configspace(struct mic_device_desc __iomem *desc) } static inline unsigned mic_total_desc_size(struct mic_device_desc __iomem *desc) { - return mic_aligned_desc_size(desc) + - mic_aligned_size(struct mic_device_ctrl); + return mic_aligned_desc_size(desc) + sizeof(struct mic_device_ctrl); } int mic_devices_init(struct mic_driver *mdrv); diff --git a/drivers/misc/mic/host/mic_virtio.c b/drivers/misc/mic/host/mic_virtio.c index 945a3d0..efe8da4 100644 --- a/drivers/misc/mic/host/mic_virtio.c +++ b/drivers/misc/mic/host/mic_virtio.c @@ -467,7 +467,7 @@ static int mic_copy_dp_entry(struct mic_vdev *mvdev, } /* Find the first free device page entry */ - for (i = mic_aligned_size(struct mic_bootparam); + for (i = sizeof(struct mic_bootparam); i < MIC_DP_SIZE - mic_total_desc_size(dd_config); i += mic_total_desc_size(devp)) { devp = mdev->dp + i; diff --git a/include/uapi/linux/mic_common.h b/include/uapi/linux/mic_common.h index 17e7d95..d0ec46d 100644 --- a/include/uapi/linux/mic_common.h +++ b/include/uapi/linux/mic_common.h @@ -23,12 +23,7 @@ #include -#ifndef __KERNEL__ -#define ALIGN(a, x) (((a) + (x) - 1) & ~((x) - 1)) -#define __aligned(x) __attribute__ ((aligned(x))) -#endif - -#define mic_aligned_size(x) ALIGN(sizeof(x), 8) +#define __mic_align(a, x) (((a) + (x) - 1) & ~((x) - 1)) /** * struct mic_device_desc: Virtio device information shared between the @@ -49,7 +44,7 @@ struct mic_device_desc { __u8 config_len; __u8 status; __u64 config[0]; -} __aligned(8); +} __attribute__ ((aligned(8))); /** * struct mic_device_ctrl: Per virtio device information in the device page @@ -74,7 +69,7 @@ struct mic_device_ctrl { __u8 used_address_updated; __s8 c2h_vdev_db; __s8 h2c_vdev_db; -} __aligned(8); +} __attribute__ ((aligned(8))); /** * struct mic_bootparam: Virtio device independent information in device page @@ -93,7 +88,7 @@ struct mic_bootparam { __s8 h2c_config_db; __u8 shutdown_status; __u8 shutdown_card; -} __aligned(8); +} __attribute__ ((aligned(8))); /** * struct mic_device_page: High level representation of the device page @@ -119,7 +114,7 @@ struct mic_vqconfig { __u64 address; __u64 used_address; __u16 num; -} __aligned(8); +} __attribute__ ((aligned(8))); /* * The alignment to use between consumer and producer parts of vring. @@ -173,15 +168,13 @@ struct mic_vring { int len; }; -#define mic_aligned_desc_size(d) ALIGN(mic_desc_size(d), 8) +#define mic_aligned_desc_size(d) __mic_align(mic_desc_size(d), 8) #ifndef INTEL_MIC_CARD static inline unsigned mic_desc_size(const struct mic_device_desc *desc) { - return mic_aligned_size(*desc) - + desc->num_vq * mic_aligned_size(struct mic_vqconfig) - + desc->feature_len * 2 - + desc->config_len; + return sizeof(*desc) + desc->num_vq * sizeof(struct mic_vqconfig) + + desc->feature_len * 2 + desc->config_len; } static inline struct mic_vqconfig * @@ -201,8 +194,7 @@ static inline __u8 *mic_vq_configspace(const struct mic_device_desc *desc) } static inline unsigned mic_total_desc_size(struct mic_device_desc *desc) { - return mic_aligned_desc_size(desc) + - mic_aligned_size(struct mic_device_ctrl); + return mic_aligned_desc_size(desc) + sizeof(struct mic_device_ctrl); } #endif -- cgit v0.10.2 From 173c07278763850bfee57eec442dce38855d6f13 Mon Sep 17 00:00:00 2001 From: Ashutosh Dixit Date: Wed, 27 Nov 2013 08:58:42 -0800 Subject: misc: mic: Fix endianness issues. Endianness issues are now consistent as per the documentation in host/mic_virtio.h. Sparse warnings related to endianness are also fixed. Note that the MIC driver implementation assumes that the host can be both BE or LE whereas the card is always LE. Reported-by: Fengguang Wu Reviewed-by: Sudeep Dutt Reviewed-by: Nikhil Rao Signed-off-by: Ashutosh Dixit Signed-off-by: Greg Kroah-Hartman diff --git a/Documentation/mic/mpssd/mpssd.c b/Documentation/mic/mpssd/mpssd.c index 91f9e8e..4d17487 100644 --- a/Documentation/mic/mpssd/mpssd.c +++ b/Documentation/mic/mpssd/mpssd.c @@ -445,8 +445,8 @@ init_vr(struct mic_info *mic, int fd, int type, __func__, mic->name, vr0->va, vr0->info, vr_size, vring_size(MIC_VRING_ENTRIES, MIC_VIRTIO_RING_ALIGN)); mpsslog("magic 0x%x expected 0x%x\n", - vr0->info->magic, MIC_MAGIC + type); - assert(vr0->info->magic == MIC_MAGIC + type); + le32toh(vr0->info->magic), MIC_MAGIC + type); + assert(le32toh(vr0->info->magic) == MIC_MAGIC + type); if (vr1) { vr1->va = (struct mic_vring *) &va[MIC_DEVICE_PAGE_END + vr_size]; @@ -458,8 +458,8 @@ init_vr(struct mic_info *mic, int fd, int type, __func__, mic->name, vr1->va, vr1->info, vr_size, vring_size(MIC_VRING_ENTRIES, MIC_VIRTIO_RING_ALIGN)); mpsslog("magic 0x%x expected 0x%x\n", - vr1->info->magic, MIC_MAGIC + type + 1); - assert(vr1->info->magic == MIC_MAGIC + type + 1); + le32toh(vr1->info->magic), MIC_MAGIC + type + 1); + assert(le32toh(vr1->info->magic) == MIC_MAGIC + type + 1); } done: return va; diff --git a/drivers/misc/mic/card/mic_virtio.c b/drivers/misc/mic/card/mic_virtio.c index 20c567b..ca0445f 100644 --- a/drivers/misc/mic/card/mic_virtio.c +++ b/drivers/misc/mic/card/mic_virtio.c @@ -248,17 +248,16 @@ static struct virtqueue *mic_find_vq(struct virtio_device *vdev, /* First assign the vring's allocated in host memory */ vqconfig = mic_vq_config(mvdev->desc) + index; memcpy_fromio(&config, vqconfig, sizeof(config)); - _vr_size = vring_size(config.num, MIC_VIRTIO_RING_ALIGN); + _vr_size = vring_size(le16_to_cpu(config.num), MIC_VIRTIO_RING_ALIGN); vr_size = PAGE_ALIGN(_vr_size + sizeof(struct _mic_vring_info)); - va = mic_card_map(mvdev->mdev, config.address, vr_size); + va = mic_card_map(mvdev->mdev, le64_to_cpu(config.address), vr_size); if (!va) return ERR_PTR(-ENOMEM); mvdev->vr[index] = va; memset_io(va, 0x0, _vr_size); - vq = vring_new_virtqueue(index, - config.num, MIC_VIRTIO_RING_ALIGN, vdev, - false, - va, mic_notify, callback, name); + vq = vring_new_virtqueue(index, le16_to_cpu(config.num), + MIC_VIRTIO_RING_ALIGN, vdev, false, va, + mic_notify, callback, name); if (!vq) { err = -ENOMEM; goto unmap; @@ -273,7 +272,8 @@ static struct virtqueue *mic_find_vq(struct virtio_device *vdev, /* Allocate and reassign used ring now */ mvdev->used_size[index] = PAGE_ALIGN(sizeof(__u16) * 3 + - sizeof(struct vring_used_elem) * config.num); + sizeof(struct vring_used_elem) * + le16_to_cpu(config.num)); used = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, get_order(mvdev->used_size[index])); if (!used) { diff --git a/drivers/misc/mic/host/mic_boot.c b/drivers/misc/mic/host/mic_boot.c index 7558d91..b75c6b5 100644 --- a/drivers/misc/mic/host/mic_boot.c +++ b/drivers/misc/mic/host/mic_boot.c @@ -62,7 +62,7 @@ void mic_bootparam_init(struct mic_device *mdev) { struct mic_bootparam *bootparam = mdev->dp; - bootparam->magic = MIC_MAGIC; + bootparam->magic = cpu_to_le32(MIC_MAGIC); bootparam->c2h_shutdown_db = mdev->shutdown_db; bootparam->h2c_shutdown_db = -1; bootparam->h2c_config_db = -1; diff --git a/drivers/misc/mic/host/mic_virtio.c b/drivers/misc/mic/host/mic_virtio.c index efe8da4..453d740 100644 --- a/drivers/misc/mic/host/mic_virtio.c +++ b/drivers/misc/mic/host/mic_virtio.c @@ -293,8 +293,8 @@ static void mic_virtio_init_post(struct mic_vdev *mvdev) continue; } mvdev->mvr[i].vrh.vring.used = - mvdev->mdev->aper.va + - le64_to_cpu(vqconfig[i].used_address); + mvdev->mdev->aper.va + + le64_to_cpu(vqconfig[i].used_address); } mvdev->dc->used_address_updated = 0; @@ -525,6 +525,7 @@ int mic_virtio_add_device(struct mic_vdev *mvdev, char irqname[10]; struct mic_bootparam *bootparam = mdev->dp; u16 num; + dma_addr_t vr_addr; mutex_lock(&mdev->mic_mutex); @@ -559,17 +560,16 @@ int mic_virtio_add_device(struct mic_vdev *mvdev, } vr->len = vr_size; vr->info = vr->va + vring_size(num, MIC_VIRTIO_RING_ALIGN); - vr->info->magic = MIC_MAGIC + mvdev->virtio_id + i; - vqconfig[i].address = mic_map_single(mdev, - vr->va, vr_size); - if (mic_map_error(vqconfig[i].address)) { + vr->info->magic = cpu_to_le32(MIC_MAGIC + mvdev->virtio_id + i); + vr_addr = mic_map_single(mdev, vr->va, vr_size); + if (mic_map_error(vr_addr)) { free_pages((unsigned long)vr->va, get_order(vr_size)); ret = -ENOMEM; dev_err(mic_dev(mvdev), "%s %d err %d\n", __func__, __LINE__, ret); goto err; } - vqconfig[i].address = cpu_to_le64(vqconfig[i].address); + vqconfig[i].address = cpu_to_le64(vr_addr); vring_init(&vr->vr, num, vr->va, MIC_VIRTIO_RING_ALIGN); ret = vringh_init_kern(&mvr->vrh, diff --git a/drivers/misc/mic/host/mic_x100.c b/drivers/misc/mic/host/mic_x100.c index 81e9541..0dfa8a8 100644 --- a/drivers/misc/mic/host/mic_x100.c +++ b/drivers/misc/mic/host/mic_x100.c @@ -397,8 +397,8 @@ mic_x100_load_ramdisk(struct mic_device *mdev) * so copy over the ramdisk @ 128M. */ memcpy_toio(mdev->aper.va + (mdev->bootaddr << 1), fw->data, fw->size); - iowrite32(cpu_to_le32(mdev->bootaddr << 1), &bp->hdr.ramdisk_image); - iowrite32(cpu_to_le32(fw->size), &bp->hdr.ramdisk_size); + iowrite32(mdev->bootaddr << 1, &bp->hdr.ramdisk_image); + iowrite32(fw->size, &bp->hdr.ramdisk_size); release_firmware(fw); error: return rc; diff --git a/include/uapi/linux/mic_common.h b/include/uapi/linux/mic_common.h index d0ec46d..6eb4024 100644 --- a/include/uapi/linux/mic_common.h +++ b/include/uapi/linux/mic_common.h @@ -43,7 +43,7 @@ struct mic_device_desc { __u8 feature_len; __u8 config_len; __u8 status; - __u64 config[0]; + __le64 config[0]; } __attribute__ ((aligned(8))); /** @@ -61,7 +61,7 @@ struct mic_device_desc { * @h2c_vdev_db: The doorbell number to be used by host. Set by guest. */ struct mic_device_ctrl { - __u64 vdev; + __le64 vdev; __u8 config_change; __u8 vdev_reset; __u8 guest_ack; @@ -82,7 +82,7 @@ struct mic_device_ctrl { * @shutdown_card: Set to 1 by the host when a card shutdown is initiated */ struct mic_bootparam { - __u32 magic; + __le32 magic; __s8 c2h_shutdown_db; __s8 h2c_shutdown_db; __s8 h2c_config_db; @@ -111,9 +111,9 @@ struct mic_device_page { * @num: The number of entries in the virtio_ring */ struct mic_vqconfig { - __u64 address; - __u64 used_address; - __u16 num; + __le64 address; + __le64 used_address; + __le16 num; } __attribute__ ((aligned(8))); /* @@ -149,7 +149,7 @@ struct mic_vqconfig { */ struct _mic_vring_info { __u16 avail_idx; - int magic; + __le32 magic; }; /** -- cgit v0.10.2 From 1a9286236916bb397c0fa7e9b3a354c291c85beb Mon Sep 17 00:00:00 2001 From: Ashutosh Dixit Date: Wed, 27 Nov 2013 08:58:43 -0800 Subject: misc: mic: Suppress memory space sparse warnings MIC card and host drivers are able to use virtio over the PCIe bus by treating ioremap return values for the prefetchable BARs as pointers, effectively treating I/O memory the same as system memory. However this results in sparse warnings. Knowing that these warnings do not point to a functional issue, this patch suppresses these warnings. Reported-by: Fengguang Wu Reviewed-by: Sudeep Dutt Signed-off-by: Nikhil Rao Signed-off-by: Ashutosh Dixit Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/misc/mic/card/mic_virtio.c b/drivers/misc/mic/card/mic_virtio.c index ca0445f..653799b 100644 --- a/drivers/misc/mic/card/mic_virtio.c +++ b/drivers/misc/mic/card/mic_virtio.c @@ -256,8 +256,9 @@ static struct virtqueue *mic_find_vq(struct virtio_device *vdev, mvdev->vr[index] = va; memset_io(va, 0x0, _vr_size); vq = vring_new_virtqueue(index, le16_to_cpu(config.num), - MIC_VIRTIO_RING_ALIGN, vdev, false, va, - mic_notify, callback, name); + MIC_VIRTIO_RING_ALIGN, vdev, false, + (void __force *)va, mic_notify, callback, + name); if (!vq) { err = -ENOMEM; goto unmap; @@ -540,7 +541,8 @@ static void mic_scan_devices(struct mic_driver *mdrv, bool remove) continue; /* device already exists */ - dev = device_find_child(mdrv->dev, d, mic_match_desc); + dev = device_find_child(mdrv->dev, (void __force *)d, + mic_match_desc); if (dev) { if (remove) iowrite8(MIC_VIRTIO_PARAM_DEV_REMOVE, diff --git a/drivers/misc/mic/host/mic_virtio.c b/drivers/misc/mic/host/mic_virtio.c index 453d740..e04bb4f 100644 --- a/drivers/misc/mic/host/mic_virtio.c +++ b/drivers/misc/mic/host/mic_virtio.c @@ -41,7 +41,7 @@ static int mic_virtio_copy_to_user(struct mic_vdev *mvdev, * We are copying from IO below an should ideally use something * like copy_to_user_fromio(..) if it existed. */ - if (copy_to_user(ubuf, dbuf, len)) { + if (copy_to_user(ubuf, (void __force *)dbuf, len)) { err = -EFAULT; dev_err(mic_dev(mvdev), "%s %d err %d\n", __func__, __LINE__, err); @@ -66,7 +66,7 @@ static int mic_virtio_copy_from_user(struct mic_vdev *mvdev, * We are copying to IO below and should ideally use something * like copy_from_user_toio(..) if it existed. */ - if (copy_from_user(dbuf, ubuf, len)) { + if (copy_from_user((void __force *)dbuf, ubuf, len)) { err = -EFAULT; dev_err(mic_dev(mvdev), "%s %d err %d\n", __func__, __LINE__, err); @@ -293,8 +293,8 @@ static void mic_virtio_init_post(struct mic_vdev *mvdev) continue; } mvdev->mvr[i].vrh.vring.used = - mvdev->mdev->aper.va - + le64_to_cpu(vqconfig[i].used_address); + (void __force *)mvdev->mdev->aper.va + + le64_to_cpu(vqconfig[i].used_address); } mvdev->dc->used_address_updated = 0; -- cgit v0.10.2 From 3441cded65118c217a749de4350b6cad50b0e350 Mon Sep 17 00:00:00 2001 From: Sebastian Reichel Date: Wed, 27 Nov 2013 10:17:22 +0100 Subject: MAINTAINERS: add HSI subsystem This adds me as maintainer for the HSI subsystem and Carlos Chinea (original author) to the CREDITS file. Signed-off-by: Sebastian Reichel Signed-off-by: Greg Kroah-Hartman diff --git a/CREDITS b/CREDITS index 4fc997d..4c7738f 100644 --- a/CREDITS +++ b/CREDITS @@ -655,6 +655,11 @@ S: Stanford University S: Stanford, California 94305 S: USA +N: Carlos Chinea +E: carlos.chinea@nokia.com +E: cch.devel@gmail.com +D: Author of HSI Subsystem + N: Randolph Chung E: tausq@debian.org D: Linux/PA-RISC hacker diff --git a/MAINTAINERS b/MAINTAINERS index 8285ed4..a975b36 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4038,6 +4038,14 @@ W: http://artax.karlin.mff.cuni.cz/~mikulas/vyplody/hpfs/index-e.cgi S: Maintained F: fs/hpfs/ +HSI SUBSYSTEM +M: Sebastian Reichel +S: Maintained +F: Documentation/ABI/testing/sysfs-bus-hsi +F: drivers/hsi/ +F: include/linux/hsi/ +F: include/uapi/linux/hsi/ + HSO 3G MODEM DRIVER M: Jan Dumon W: http://www.pharscape.org -- cgit v0.10.2 From 9aa5b0181bdf335f0b731d8502e128a862884bcd Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Tue, 3 Dec 2013 13:56:56 -0800 Subject: drivers/char/i8k.c: add Dell XPLS L421X Addresses https://bugzilla.kernel.org/show_bug.cgi?id=60772 Signed-off-by: Alan Cox Reported-by: Leho Kraav Cc: stable Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/char/i8k.c b/drivers/char/i8k.c index 40cc0cf2..e6939e1 100644 --- a/drivers/char/i8k.c +++ b/drivers/char/i8k.c @@ -664,6 +664,13 @@ static struct dmi_system_id __initdata i8k_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "Vostro"), }, }, + { + .ident = "Dell XPS421", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "XPS L421X"), + }, + }, { } }; -- cgit v0.10.2 From 76a9635979e543f04a5885198e68ff28e3311b67 Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Thu, 5 Dec 2013 09:34:44 +0200 Subject: mei: add 9 series PCH mei device ids And Lynx Point H Refresh and Wildcat Point LP device ids. Signed-off-by: Tomas Winkler Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/misc/mei/hw-me-regs.h b/drivers/misc/mei/hw-me-regs.h index 6c0fde5..66f411a 100644 --- a/drivers/misc/mei/hw-me-regs.h +++ b/drivers/misc/mei/hw-me-regs.h @@ -109,9 +109,12 @@ #define MEI_DEV_ID_PPT_2 0x1CBA /* Panther Point */ #define MEI_DEV_ID_PPT_3 0x1DBA /* Panther Point */ -#define MEI_DEV_ID_LPT 0x8C3A /* Lynx Point */ +#define MEI_DEV_ID_LPT_H 0x8C3A /* Lynx Point H */ #define MEI_DEV_ID_LPT_W 0x8D3A /* Lynx Point - Wellsburg */ #define MEI_DEV_ID_LPT_LP 0x9C3A /* Lynx Point LP */ +#define MEI_DEV_ID_LPT_HR 0x8CBA /* Lynx Point H Refresh */ + +#define MEI_DEV_ID_WPT_LP 0x9CBA /* Wildcat Point LP */ /* * MEI HW Section */ diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c index b96205a..2cab3c0 100644 --- a/drivers/misc/mei/pci-me.c +++ b/drivers/misc/mei/pci-me.c @@ -76,9 +76,11 @@ static DEFINE_PCI_DEVICE_TABLE(mei_me_pci_tbl) = { {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_PPT_1)}, {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_PPT_2)}, {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_PPT_3)}, - {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT_H)}, {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT_W)}, {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT_LP)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT_HR)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_WPT_LP)}, /* required last entry */ {0, } -- cgit v0.10.2