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864533ceb6db336dead389577c102a8b792a121a
Analyze and fix the following issue in the Linux kernel code: Fix circular locking dependency (3.3-rc2)
Problem Details: Hi, On Wed, Feb 8, 2012 at 8:41 PM, Felipe Balbi <balbi@ti.com> wrote: > Hi guys, > > I have just triggered the folllowing: > > [   84.860321] ====================================================== > [   84.860321] [ INFO: possible circular locking dependency detected ] > [   84.860321] 3.3.0-rc2-0002...
```diff diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 17fdf4b6af93..d77354068b90 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -873,6 +873,7 @@ void gpio_unexport(unsigned gpio) { struct gpio_desc *desc; int status = 0; + struct device *dev = NULL; if (!gpio_is_val...
cf3f047b9af49d4ee8abfa31b0ef0e99cbcaf17d
Analyze and fix the following issue in the Linux kernel code: stmmac: move hw init in the probe (v2)
Problem Details: This patch moves the MAC HW initialization and the HW feature verification from the open to the probe function as D. Miller suggested. So the patch actually reorganizes and tidies-up some parts of the driver and indeed fixes some problem when tune its HW features. These can be overwritten by looking at...
```diff diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h index 120740020e2c..6ca2aa3cc43b 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h @@ -97,4 +97,5 @@ int stmmac_resume(struct net_device *ndev); in...
2531188b476c83fe29b1d3498a76e329f4b6f16b
Analyze and fix the following issue in the Linux kernel code: mlx4: fix QP tree trashing
Problem Details: When adding new unicast steer entry, before moving qp to state ready, actually before calling mlx4_RST2INIT_QP_wrapper(), there were added a lot of entries with local_qpn=0 into radix tree. This fact impacted the get_res() function and proper functioning of resource tracker in addition to adding trash ...
```diff diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c index 1420dbc947c2..629cc3018746 100644 --- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c +++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c @@ -374,6 +374,7 @@ static st...
75c6062cb797afe624d65c955eb867035622e782
Analyze and fix the following issue in the Linux kernel code: mlx4: fix buffer overrun
Problem Details: When passing MLX4_UC_STEER=1 it was translated to value 2 after mlx4_QP_ATTACH_wrapper. Therefore in new_steering_entry() unicast steer entries were added to index 2 of array of size 2. Fixing this bug by shift right to one position. Signed-off-by: Eugenia Emantayev <eugenia@mellanox.co.il> Reviewed-b...
```diff diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c index dcd819bfb2f0..1420dbc947c2 100644 --- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c +++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c @@ -2538,7 +2538,7 @@ int mlx...
2504a6423b9ab4c36df78227055995644de19edb
Analyze and fix the following issue in the Linux kernel code: ath9k: stop on rates with idx -1 in ath9k rate control's .tx_status
Problem Details: Rate control algorithms are supposed to stop processing when they encounter a rate with the index -1. Checking for rate->count not being zero is not enough. Allowing a rate with negative index leads to memory corruption in ath_debug_stat_rc(). One consequence of the bug is discussed at https://bugzi...
```diff diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c index 635b592ad961..a427a16bb739 100644 --- a/drivers/net/wireless/ath/ath9k/rc.c +++ b/drivers/net/wireless/ath/ath9k/rc.c @@ -1346,7 +1346,7 @@ static void ath_tx_status(void *priv, struct ieee80211_supported_band *sband, ...
6670f15b1f6858a43b292d8ab64464e9f085a6aa
Analyze and fix the following issue in the Linux kernel code: mwifiex: clear previous security setting during association
Problem Details: Driver maintains different flags for WEP, WPA, WPA2 security modes. Appropriate flag is set using security information provided in connect request. mwifiex_is_network_compatible() routine uses them to check if driver's setting is compatible with AP. Association is aborted if the routine fails. For som...
```diff diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c index c3b6c4652cd6..5b2972b43b0e 100644 --- a/drivers/net/wireless/mwifiex/cfg80211.c +++ b/drivers/net/wireless/mwifiex/cfg80211.c @@ -841,7 +841,12 @@ mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid...
61cddc57dc14a5dffa0921d9a24fd68edbb374ac
Analyze and fix the following issue in the Linux kernel code: regmap: Fix cache defaults initialization from raw cache defaults
Problem Details: Currently registers with a value of 0 are ignored when initializing the register defaults from raw defaults. This worked in the past, because registers without a explicit default were assumed to have a default value of 0. This was changed in commit b03622a8 ("regmap: Ensure rbtree syncs registers set t...
```diff diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c index 1ead66186b7c..d1daa5e9fadf 100644 --- a/drivers/base/regmap/regcache.c +++ b/drivers/base/regmap/regcache.c @@ -53,7 +53,7 @@ static int regcache_hw_init(struct regmap *map) for (count = 0, i = 0; i < map->num_reg_defaults_raw;...
c38e23456278e967f094b08247ffc3711b1029b2
Analyze and fix the following issue in the Linux kernel code: i387: fix sense of sanity check
Problem Details: The check for save_init_fpu() (introduced in commit 5b1cbac37798: "i387: make irq_fpu_usable() tests more robust") was the wrong way around, but I hadn't noticed, because my "tests" were bogus: the FPU exceptions are disabled by default, so even doing a divide by zero never actually triggers this code ...
```diff diff --git a/arch/x86/include/asm/i387.h b/arch/x86/include/asm/i387.h index a29571821b99..727c1dd84899 100644 --- a/arch/x86/include/asm/i387.h +++ b/arch/x86/include/asm/i387.h @@ -404,7 +404,7 @@ static inline void irq_ts_restore(int TS_state) */ static inline void save_init_fpu(struct task_struct *tsk) ...
48a8c3943d1010c81d8144cc773f81c30bf59246
Analyze and fix the following issue in the Linux kernel code: ASoC: dapm: Convert pin switches to use snd_soc_card
Problem Details: Since the addition of the non-CODEC control adds card controls like the DAPM pin switch have been broken as they are expecting the private data for the control to be the CODEC but it's now the card. Fix that for the pin switches, an audit of other drivers is required. Signed-off-by: Mark Brown <brooni...
```diff diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 63a5614d33cb..0740cfc3d991 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -2657,15 +2657,15 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem...
f3cfcba60fcfdce89f9332dc6c31137309d33c8a
Analyze and fix the following issue in the Linux kernel code: drm/i915/lvds: Always use the presence pin for LVDS on PCH
Problem Details: With the introduction of the PCH, we gained an LVDS presence pin but we continued to use the existing logic that asserted that LVDS was only supported on certain mobile chipsets. However, there are desktop IronLake systems with LVDS attached which we fail to detect. So for PCH, trust the LVDS presence ...
```diff diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index a12159e53aef..cdcf99bf9de8 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -7755,10 +7755,9 @@ static void intel_setup_outputs(struct drm_device *dev) struct drm_i915_...
c08782dacd7a098f2b8bca7f4a57a5b402e9e1e5
Analyze and fix the following issue in the Linux kernel code: btrfs: fix structs where bitfields and spinlock/atomic share 8B word
Problem Details: On ia64, powerpc64 and sparc64 the bitfield is modified through a RMW cycle and current gcc rewrites the adjacent 4B word, which in case of a spinlock or atomic has disaterous effect. https://lkml.org/lkml/2012/2/1/220 Signed-off-by: David Sterba <dsterba@suse.cz>
```diff diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 3c2cbf7b6663..8e4457e0478e 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -886,7 +886,7 @@ struct btrfs_block_rsv { u64 reserved; struct btrfs_space_info *space_info; spinlock_t lock; - unsigned int full:1; + unsigned int full; }; /* diff...
87826df0ec36fc28884b4ddbb3f3af41c4c2008f
Analyze and fix the following issue in the Linux kernel code: btrfs: delalloc for page dirtied out-of-band in fixup worker
Problem Details: We encountered an issue that was easily observable on s/390 systems but could really happen anywhere. The timing just seemed to hit reliably on s/390 with limited memory. The gist is that when an unexpected set_page_dirty() happened, we'd run into the BUG() in btrfs_writepage_fixup_worker since it...
```diff diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index fcf77e1ded40..89ba79fb945c 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -2161,6 +2161,38 @@ static int bio_readpage_error(struct bio *failed_bio, struct page *page, /* lots and lots of room for performance fixes in the end_bio ...
a7e221e9002306a753d6f78b4060edabce402033
Analyze and fix the following issue in the Linux kernel code: Btrfs: fix memory leak in load_free_space_cache()
Problem Details: load_free_space_cache() has forgotten to free path. Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
```diff diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 5802b1473c3d..b30242f4435e 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -777,6 +777,7 @@ int load_free_space_cache(struct btrfs_fs_info *fs_info, spin_lock(&block_group->lock); if (block_group->disk...
2cac13e41bf5b99ffc426bd28dfd2248df1dfa67
Analyze and fix the following issue in the Linux kernel code: Btrfs: fix trim 0 bytes after a device delete
Problem Details: A user reported a bug of btrfs's trim, that is we will trim 0 bytes after a device delete. The reproducer: $ mkfs.btrfs disk1 $ mkfs.btrfs disk2 $ mount disk1 /mnt $ fstrim -v /mnt $ btrfs device add disk2 /mnt $ btrfs device del disk1 /mnt $ fstrim -v /mnt This is because after we delete the device...
```diff diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 283af7a676a3..60bfe2d68547 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -7886,9 +7886,16 @@ int btrfs_trim_fs(struct btrfs_root *root, struct fstrim_range *range) u64 start; u64 end; u64 trimmed = 0; + u64 total_byte...
bab6f610640a92b6b40e6b732f520a6e0c85dbbe
Analyze and fix the following issue in the Linux kernel code: [media] wl128x: fix build errors when GPIOLIB is not enabled
Problem Details: From: Randy Dunlap <rdunlap@xenotime.net> Fix wl128x Kconfig to depend on GPIOLIB since TI_ST also depends on GPIOLIB. (.text+0xe6d60): undefined reference to `st_register' (.text+0xe7016): undefined reference to `st_unregister' (.text+0xe70ce): undefined reference to `st_unregister' Signed-off-by: ...
```diff diff --git a/drivers/media/radio/wl128x/Kconfig b/drivers/media/radio/wl128x/Kconfig index 86b28579f0c7..ea1e6545df36 100644 --- a/drivers/media/radio/wl128x/Kconfig +++ b/drivers/media/radio/wl128x/Kconfig @@ -4,8 +4,8 @@ menu "Texas Instruments WL128x FM driver (ST based)" config RADIO_WL128X tristate "Te...
0a8a2e78b7eece7c65884fcff9f98dc0fce89ee4
Analyze and fix the following issue in the Linux kernel code: timer: Fix bad idle check on irq entry
Problem Details: idle_cpu() is called on irq entry to guess if we need to call tick_check_idle(). This way we can catch up with jiffies if the tick was stopped, stop accounting idle time during the interrupt and maintain the sched clock if it is unstable. But if we are going to exit the idle loop to schedule a new tas...
```diff diff --git a/kernel/softirq.c b/kernel/softirq.c index 4eb3a0fa351e..5ace266bc0e6 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c @@ -297,7 +297,7 @@ void irq_enter(void) int cpu = smp_processor_id(); rcu_irq_enter(); - if (idle_cpu(cpu) && !in_interrupt()) { + if (is_idle_task(current) && !in_interr...
2e2ba5d1e26465fe188729e310e7928ddf3d9b3e
Analyze and fix the following issue in the Linux kernel code: [media] wl128x: fix build errors when GPIOLIB is not enabled
Problem Details: From: Randy Dunlap <rdunlap@xenotime.net> Fix wl128x Kconfig to depend on GPIOLIB since TI_ST also depends on GPIOLIB. (.text+0xe6d60): undefined reference to `st_register' (.text+0xe7016): undefined reference to `st_unregister' (.text+0xe70ce): undefined reference to `st_unregister' Signed-off-by: ...
```diff diff --git a/drivers/media/radio/wl128x/Kconfig b/drivers/media/radio/wl128x/Kconfig index 86b28579f0c7..ea1e6545df36 100644 --- a/drivers/media/radio/wl128x/Kconfig +++ b/drivers/media/radio/wl128x/Kconfig @@ -4,8 +4,8 @@ menu "Texas Instruments WL128x FM driver (ST based)" config RADIO_WL128X tristate "Te...
8866f405efd4171f9d9c91901d2dd02f01bacb60
Analyze and fix the following issue in the Linux kernel code: ALSA: usb-audio: avoid integer overflow in create_fixed_stream_quirk()
Problem Details: A malicious USB device could feed in a large nr_rates value. This would cause the subsequent call to kmemdup() to allocate a smaller buffer than expected, leading to out-of-bounds access. This patch validates the nr_rates value and reuses the limit introduced in commit 4fa0e81b ("ALSA: usb-audio: fix...
```diff diff --git a/sound/usb/card.h b/sound/usb/card.h index a39edcc32a93..da5fa1ac4eda 100644 --- a/sound/usb/card.h +++ b/sound/usb/card.h @@ -1,6 +1,7 @@ #ifndef __USBAUDIO_CARD_H #define __USBAUDIO_CARD_H +#define MAX_NR_RATES 1024 #define MAX_PACKS 20 #define MAX_PACKS_HS (MAX_PACKS * 8) /* in high speed m...
6e8d5d2f17e707ecfabd33fd5fa167ac7739326e
Analyze and fix the following issue in the Linux kernel code: ALSA: usx2y: Fix typo in usbusx2yaudio.c and usx2yhwdeppcm.c
Problem Details: Correct spelling "propably" to "probably" and "activ" to "active" in sound/usb/usx2y/usbusx2yaudio.c and usx2yhwdeppcm.c Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
```diff diff --git a/sound/usb/usx2y/usbusx2yaudio.c b/sound/usb/usx2y/usbusx2yaudio.c index 6ffb3713b60c..520ef96d7c75 100644 --- a/sound/usb/usx2y/usbusx2yaudio.c +++ b/sound/usb/usx2y/usbusx2yaudio.c @@ -80,7 +80,7 @@ static int usX2Y_urb_capt_retire(struct snd_usX2Y_substream *subs) cp = (unsigned char*)urb->tra...
52d39a21350531063bf8f4f704101bd371ea5d7d
Analyze and fix the following issue in the Linux kernel code: drm/i915: Record the in-flight requests at the time of a hang
Problem Details: Being able to tally the list of outstanding requests with the sequence of commands in the ringbuffer is often useful evidence with respect to driver corruption. Note that since this is the umpteenth per-ring data structure to be added to the error state, I've coallesced the nearby loops (the ringbuffe...
```diff diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index ae73288a9699..45876e5bf2aa 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -738,7 +738,7 @@ static int i915_error_state(struct seq_file *m, void *unused) drm_i915_private_...
a71d8d94525e8fd855c0466fb586ae1cb008f3a2
Analyze and fix the following issue in the Linux kernel code: drm/i915: Record the tail at each request and use it to estimate the head
Problem Details: By recording the location of every request in the ringbuffer, we know that in order to retire the request the GPU must have finished reading it and so the GPU head is now beyond the tail of the request. We can therefore provide a conservative estimate of where the GPU is reading from in order to avoid ...
```diff diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 8e3eb5e282a1..0e4c073fae49 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -944,6 +944,9 @@ struct drm_i915_gem_request { /** GEM sequence number associated with this request. */ uint32...
7b99b659d90c5d421cb1867295c78a4c0c030734
Analyze and fix the following issue in the Linux kernel code: Bluetooth: Fix event sending with DISCOVERY_STOPPED state
Problem Details: We are not supposed to send mgmt_discovering events if we are transiting from DISCOVERY_STARTING to DISCOVERY_STOPPED state. It doesn't make sense to send mgmt_discovering event once discovery procedure has not been even started. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Acked-by: Marce...
```diff diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 9ada16449aed..dc31e7d6028e 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -380,7 +380,8 @@ void hci_discovery_set_state(struct hci_dev *hdev, int state) switch (state) { case DISCOVERY_STOPPED: - mgmt_discover...
203159d486006a18fa1ccf787a10d15d3128cdac
Analyze and fix the following issue in the Linux kernel code: Bluetooth: Fix discovery state machine
Problem Details: In case of Start Discovery command failure, we should set the discovery state to DISCOVERY_STOPPED. Otherwise, we stuck at DISCOVERY_STARTING state and subsequent Start Discovery commands will simply fail. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Acked-by: Marcel Holtmann <marcel@holtm...
```diff diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 8efbd8eaa1b3..066d338be1ce 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -3096,6 +3096,8 @@ int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status) struct pending_cmd *cmd; int err; + hci_discovery_set_state(hdev, DI...
24d2b8c0ac5c8ec41c26ed432238b0e027184882
Analyze and fix the following issue in the Linux kernel code: Bluetooth: Fix possible use after free in delete path
Problem Details: We need to use the _sync() version for cancelling the info and security timer in the L2CAP connection delete path. Otherwise the delayed work handler might run after the connection object is freed. Signed-off-by: Ulisses Furquim <ulisses@profusion.mobi> Acked-by: Marcel Holtmann <marcel@holtmann.org> ...
```diff diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index ec10c698b891..32d338c30e65 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -1018,10 +1018,10 @@ static void l2cap_conn_del(struct hci_conn *hcon, int err) hci_chan_del(conn->hchan); if (conn->info_state ...
cf33e77b76d7439f21a23a94eab4ab3b405a6a7d
Analyze and fix the following issue in the Linux kernel code: Bluetooth: Fix RFCOMM session reference counting issue
Problem Details: There is an imbalance in the rfcomm_session_hold / rfcomm_session_put operations which causes the following crash: [ 685.010159] BUG: unable to handle kernel paging request at 6b6b6b6b [ 685.010169] IP: [<c149d76d>] rfcomm_process_dlcs+0x1b/0x15e [ 685.010181] *pdpt = 000000002d665001 *pde = 000000...
```diff diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c index 501649bf5596..8a602388f1e7 100644 --- a/net/bluetooth/rfcomm/core.c +++ b/net/bluetooth/rfcomm/core.c @@ -1164,12 +1164,18 @@ static int rfcomm_recv_ua(struct rfcomm_session *s, u8 dlci) break; case BT_DISCONN: - /* When soc...
a51cd2be864a3cc0272359b1995e213341dfc7e7
Analyze and fix the following issue in the Linux kernel code: Bluetooth: Fix potential deadlock
Problem Details: We don't need to use the _sync variant in hci_conn_hold and hci_conn_put to cancel conn->disc_work delayed work. This way we avoid potential deadlocks like this one reported by lockdep. ====================================================== [ INFO: possible circular locking dependency detected ] 3.2.0...
```diff diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 92b8fea553d7..453893b3120e 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -540,7 +540,7 @@ void hci_conn_put_device(struct hci_conn *conn); static inline void hci_conn_hold(struct hci...
b5a30dda6598af216c070165ece6068f9f00f33a
Analyze and fix the following issue in the Linux kernel code: Bluetooth: silence lockdep warning
Problem Details: Since bluetooth uses multiple protocols types, to avoid lockdep warnings, we need to use different lockdep classes (one for each protocol type). This is already done in bt_sock_create but it misses a couple of cases when new connections are created. This patch corrects that to fix the following warnin...
```diff diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h index abaad6ed9b83..4a82ca0bb0b2 100644 --- a/include/net/bluetooth/bluetooth.h +++ b/include/net/bluetooth/bluetooth.h @@ -256,4 +256,6 @@ void l2cap_exit(void); int sco_init(void); void sco_exit(void); +void bt_sock_reclass...
331660637b4e5136602a98200a84f6b65ed8d5be
Analyze and fix the following issue in the Linux kernel code: Bluetooth: Fix using an absolute timeout on hci_conn_put()
Problem Details: queue_delayed_work() expects a relative time for when that work should be scheduled. Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
```diff diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index ea9231f4935f..92b8fea553d7 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -561,7 +561,7 @@ static inline void hci_conn_put(struct hci_conn *conn) } cancel_delayed_work_sync(&conn...
a63752552b95624a9f1dfa3d763870f72f964ad0
Analyze and fix the following issue in the Linux kernel code: Bluetooth: Fix sk_sndtimeo initialization for L2CAP socket
Problem Details: sk_sndtime value should be specified in jiffies thus initial value needs to be converted from miliseconds. Otherwise this timeout is unreliable when CONFIG_HZ is not set to 1000. Signed-off-by: Andrzej Kaczmarek <andrzej.kaczmarek@tieto.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-b...
```diff diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c index c61d967012b2..c57027f7606f 100644 --- a/net/bluetooth/l2cap_sock.c +++ b/net/bluetooth/l2cap_sock.c @@ -1002,7 +1002,7 @@ static struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock, int p INIT_LIST_HEAD(&bt_sk(sk)->accep...
18daf1644e634bae951a6e3d4d19d89170209762
Analyze and fix the following issue in the Linux kernel code: Bluetooth: Fix l2cap conn failures for ssp devices
Problem Details: Commit 330605423c fixed l2cap conn establishment for non-ssp remote devices by not setting HCI_CONN_ENCRYPT_PEND every time conn security is tested (which was always returning failure on any subsequent security checks). However, this broke l2cap conn establishment for ssp remote devices when an ACL li...
```diff diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index 3db432473ad5..07bc69ed9498 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -635,6 +635,10 @@ static int hci_conn_auth(struct hci_conn *conn, __u8 sec_level, __u8 auth_type) if (!test_and_set_bit(HCI_CONN_AUTH_PEND...
6e2e340b59d2d4e7b6b7f2c2d02b0d5ca4df6458
Analyze and fix the following issue in the Linux kernel code: ARM: 7324/1: modpost: Fix section warnings for ARM for many compilers
Problem Details: It turns out that many compilers don't show section warnings on ARM currently because handling for ARM_CALL relocs are missing from modpost.c. Based on commit c2e26114 ([ARM] 3205/1: Handle new EABI relocations when loading kernel modules) it seems that R_ARM_PC24, R_ARM_CALL and R_ARM_JUMP24 can be h...
```diff diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index 2bd594e6d1b4..9adb667dd31a 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -1494,6 +1494,13 @@ static int addend_386_rel(struct elf_info *elf, Elf_Shdr *sechdr, Elf_Rela *r) return 0; } +#ifndef R_ARM_CALL +#define R_ARM_CAL...
b87f20c018cead99b76c431b9289c0f17168d21c
Analyze and fix the following issue in the Linux kernel code: wl12xx: Revert "wl12xx: disable auto-arp"
Problem Details: This reverts commit e5e2f24b3eec67a7a35d43654a997f98ca21aff2. The encryption consideration on auto-arp configuration, along with a fw fix, seem to resolve the crashes that occured when auto-arp was enabled, so we can re-enable it now. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luci...
```diff diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c index a84fe28873ea..a264cb5bee5a 100644 --- a/drivers/net/wireless/wl12xx/main.c +++ b/drivers/net/wireless/wl12xx/main.c @@ -3862,7 +3862,8 @@ sta_not_found: } ret = wl1271_acx_arp_ip_filter(wl, wlvif, - ACX_ARP_F...
2801d69e84d04714c22f8cc22fbe8535ac5f1eb7
Analyze and fix the following issue in the Linux kernel code: wl12xx: remove wl1271_tx_update_filters
Problem Details: wl1271_tx_update_filters() is used as some workaround to open filters while roaming on the same channel. However, it doesn't handle roaming to a different channel, and it might also sleep in the tx path, which is a bug. With the new auth/assoc redesign, roaming is much simpler, and this function is n...
```diff diff --git a/drivers/net/wireless/wl12xx/tx.c b/drivers/net/wireless/wl12xx/tx.c index 4508ccd78328..2bf43b86a3f9 100644 --- a/drivers/net/wireless/wl12xx/tx.c +++ b/drivers/net/wireless/wl12xx/tx.c @@ -77,35 +77,6 @@ static void wl1271_free_tx_id(struct wl1271 *wl, int id) } } -static int wl1271_tx_update...
7db4ee6d0a932bb95f839d9b427899b74139a8d5
Analyze and fix the following issue in the Linux kernel code: wl12xx: check bss_conf->assoc on CHANGED_BSSID
Problem Details: with the new auth/assoc redesign, we get CHANGED_BSSID indication before CHANGED_ASSOC indication, while our CHANGED_BSSID handling block assumes we are already associated. Fix it by checking we are either in ibss mode, or already associated. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-...
```diff diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c index ce0a233d2cd1..bba2a52256b6 100644 --- a/drivers/net/wireless/wl12xx/main.c +++ b/drivers/net/wireless/wl12xx/main.c @@ -3665,7 +3665,8 @@ static void wl1271_bss_info_changed_sta(struct wl1271 *wl, wlvif->rssi_thold = b...
2c882fa47502ef201e0533fc7cc21b097f4bcdca
Analyze and fix the following issue in the Linux kernel code: wl12xx: fix typo in fwlog module param description
Problem Details: Fix a copy and paste bug in the MODULE_PARAM_DESC for fwlog. Signed-off-by: Luciano Coelho <coelho@ti.com>
```diff diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c index 6c92f86217cd..ce0a233d2cd1 100644 --- a/drivers/net/wireless/wl12xx/main.c +++ b/drivers/net/wireless/wl12xx/main.c @@ -5444,7 +5444,7 @@ module_param_named(debug_level, wl12xx_debug_level, uint, S_IRUSR | S_IWUSR); MODU...
f6fbeccd3e513c23de9cd8562f2b2e78d4d17912
Analyze and fix the following issue in the Linux kernel code: wl12xx: cancel delayed elp work and clear flags when stopping PLT
Problem Details: In some cases a race condition can happen if we don't cancel any pending ELP work before stopping PLT. With this commit we cancel ELP work and clear the wl->flags bitmask. Also clean up the wl elements after powering off. Signed-off-by: Luciano Coelho <coelho@ti.com>
```diff diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c index 3a1636b68cd2..3587afcd6469 100644 --- a/drivers/net/wireless/wl12xx/main.c +++ b/drivers/net/wireless/wl12xx/main.c @@ -1420,17 +1420,18 @@ int wl1271_plt_stop(struct wl1271 *wl) goto out; } - wl->state = WL1271_ST...
46b0cc9ffce356fbcb2135219a3ed8500714a9e4
Analyze and fix the following issue in the Linux kernel code: wl12xx: Fix potential interrupt storm
Problem Details: The interrupt threaded handler exits immediately if the driver's state is WL1271_STATE_OFF. As a result, the interrupt status is not read. If the interrupt is level triggered, it will be fired again. Fix this by disabling interrupts before setting the state to OFF. Signed-off-by: Ido Yariv <ido@wizer...
```diff diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c index 9e9fb3fb8f01..3a1636b68cd2 100644 --- a/drivers/net/wireless/wl12xx/main.c +++ b/drivers/net/wireless/wl12xx/main.c @@ -1397,9 +1397,23 @@ int wl1271_plt_stop(struct wl1271 *wl) wl1271_notice("power down"); + /* + ...
a454969ede024a209e6a755d5f7a928ab81ed00c
Analyze and fix the following issue in the Linux kernel code: wl12xx: Power off after flushing work
Problem Details: When stopping plt, the chip is powered off before all current work items are flushed and interrupts are disabled. This might introduce a race in which the driver tries to communicate with a powered off chip. Fix this by powering off the device only after interrupts are disabled and all work items are ...
```diff diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c index ac6866469073..9e9fb3fb8f01 100644 --- a/drivers/net/wireless/wl12xx/main.c +++ b/drivers/net/wireless/wl12xx/main.c @@ -1406,8 +1406,6 @@ int wl1271_plt_stop(struct wl1271 *wl) goto out; } - wl1271_power_off(wl); -...
f3df1331f25f782e838a3ecb72cec86b539ac02f
Analyze and fix the following issue in the Linux kernel code: wl12xx: Acquire lock before stopping plt
Problem Details: __wl1271_plt_stop is called from both wl1271_plt_stop and wl1271_unregister_hw. While wl1271_plt_stop acquires a mutex, wl1271_unregister_hw does not. Fix this by calling wl1271_plt_stop instead of __wl1271_plt_stop from wl1271_unregister_hw. Signed-off-by: Ido Yariv <ido@wizery.com> Signed-off-by: L...
```diff diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c index f2a958c9537a..ac6866469073 100644 --- a/drivers/net/wireless/wl12xx/main.c +++ b/drivers/net/wireless/wl12xx/main.c @@ -1391,13 +1391,15 @@ out: return ret; } -static int __wl1271_plt_stop(struct wl1271 *wl) +int wl1...
9e0dc890ce23e2b28ce906bb8f466ca66f420911
Analyze and fix the following issue in the Linux kernel code: wl12xx: Make sure HW is available in sched scan ops
Problem Details: The sched_scan_(stop|start) ops fails to check for WL1271_STATE_OFF. This can lead to a race where the driver tries to access the HW while it's off. Fix this by checking for WL1271_STATE_OFF before accessing the HW. Signed-off-by: Pontus Fuchs <pontus.fuchs@gmail.com> Signed-off-by: Luciano Coelho <c...
```diff diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c index f8748cedbae1..f2a958c9537a 100644 --- a/drivers/net/wireless/wl12xx/main.c +++ b/drivers/net/wireless/wl12xx/main.c @@ -3108,6 +3108,11 @@ static int wl1271_op_sched_scan_start(struct ieee80211_hw *hw, mutex_lock(&wl-...
059625e757754459d8adb370e3d751abdd51723b
Analyze and fix the following issue in the Linux kernel code: wl1251: fix sparse warning
Problem Details: The wl1251 driver was generating the following warning: drivers/net/wireless/wl1251/boot.c:467:21: warning: incorrect type in assignment (different base types) drivers/net/wireless/wl1251/boot.c:467:21: expected unsigned int [unsigned] [assigned] [usertype] val drivers/net/wireless/wl1251/boot.c:46...
```diff diff --git a/drivers/net/wireless/wl1251/boot.c b/drivers/net/wireless/wl1251/boot.c index d729daf8e841..a2e5241382da 100644 --- a/drivers/net/wireless/wl1251/boot.c +++ b/drivers/net/wireless/wl1251/boot.c @@ -464,8 +464,6 @@ static int wl1251_boot_upload_nvs(struct wl1251 *wl) val = (nvs_ptr[0] | (nvs_ptr[...
b6d1e83b4ea6cb369bdd490871f00651decdb509
Analyze and fix the following issue in the Linux kernel code: NFS: fix nfs4_find_client_sessionid() arguments list
Problem Details: It's not compilable in case of CONFIG_NFS_V4_1 is not set. Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
```diff diff --git a/fs/nfs/client.c b/fs/nfs/client.c index 6f6267cb6bad..d0f850ffeb19 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -1266,7 +1266,7 @@ nfs4_find_client_sessionid(struct net *net, const struct sockaddr *addr, #else /* CONFIG_NFS_V4_1 */ struct nfs_client * -nfs4_find_client_sessionid(const ...
265da78afd52b9a01d76d99556e828a6c30f1ac9
Analyze and fix the following issue in the Linux kernel code: drm/exynos: exynos_drm.h header file fixes
Problem Details: First of all #ifdef __KERNEL__ was added to exynos_drm.h to mark the part that should be left out of userspace. Secondly exynos_drm.h was added to include/drm/Kbuild, so it will be included when doing make headers_install. Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Inki Dae <ink...
```diff diff --git a/include/drm/Kbuild b/include/drm/Kbuild index a5c0e10fd47d..1e38a19d68f6 100644 --- a/include/drm/Kbuild +++ b/include/drm/Kbuild @@ -2,6 +2,7 @@ header-y += drm.h header-y += drm_fourcc.h header-y += drm_mode.h header-y += drm_sarea.h +header-y += exynos_drm.h header-y += i810_drm.h header-y ...
039129b0b46c5b0883cd78c8817f765323afa972
Analyze and fix the following issue in the Linux kernel code: drm/exynos: fixed page flip issue.
Problem Details: with vblank_refcount = 1, there was the case that drm_vblank_put is called by specific page flip function so this patch fixes the issue. Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
```diff diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c index e3861ac49295..de818831a511 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c @@ -307,9 +307,6 @@ static int exynos_drm_crtc_page_flip(struct drm_crtc *crtc, ...
a04afc1db975ae94f721bc3b3bf65d1d3cf1dfba
Analyze and fix the following issue in the Linux kernel code: drm/exynos: removed pageflip_event_list init code when closed.
Problem Details: if one process is terminated by ctrl-c while two processes are using pageflip feature then for last pageflip event, user can't get poll from kernel side so this patch fixes the problem. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by...
```diff diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c index 35889ca255e9..2ef12aa30303 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c @@ -141,16 +141,10 @@ static int exynos_drm_unload(struct drm_device *dev) } stat...
a7fa61b4b20a7121b8644ff7508b086120e398c6
Analyze and fix the following issue in the Linux kernel code: drm/exynos: Fix typo in exynos_mixer.c
Problem Details: Correct spelling "sucessful" to "successful" in drivers/gpu/drm/exynos/exynos_mixer.c Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
```diff diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index ac24cff39775..33afd0cf036a 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -1044,7 +1044,7 @@ static int mixer_remove(struct platform_device *pdev) platform_ge...
2573897816e604952ee9f7dbe798094d80c1e31d
Analyze and fix the following issue in the Linux kernel code: staging: tidspbridge: fix bridge_open memory leaks
Problem Details: There are two members of pr_ctxt allocated during bridge_open that are never freed resulting in memory leaks, these are stream_id and node_id, they are now freed on release of the handle (bridge_release) right before freeing pr_ctxt. Error path for bridge_open was also fixed since the same variables c...
```diff diff --git a/drivers/staging/tidspbridge/rmgr/drv_interface.c b/drivers/staging/tidspbridge/rmgr/drv_interface.c index c14fa8ec3fa8..3cac01492063 100644 --- a/drivers/staging/tidspbridge/rmgr/drv_interface.c +++ b/drivers/staging/tidspbridge/rmgr/drv_interface.c @@ -139,35 +139,42 @@ static int bridge_open(stru...
bf5c43c8f155e755b0fc3dfa76f9f8c6e2c0161f
Analyze and fix the following issue in the Linux kernel code: nfsd4: check for uninitialized slot
Problem Details: This fixes an oops when a buggy client tries to use an initial seqid of 0 on a new slot, which we may misinterpret as a replay. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
```diff diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index e0e706f8918d..2387791ea050 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -1347,6 +1347,7 @@ nfsd4_store_cache_entry(struct nfsd4_compoundres *resp) slot->sl_opcnt = resp->opcnt; slot->sl_status = resp->cstate.status; + slot->sl_f...
31794bc37bf2db84f085da52b72bfba65739b2d2
Analyze and fix the following issue in the Linux kernel code: ASoC: wm8962: Fix sidetone enumeration texts
Problem Details: The sidetone enumeration texts have left and right swapped. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@vger.kernel.org
```diff diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c index 29c4b02c4790..0ac228b7dc04 100644 --- a/sound/soc/codecs/wm8962.c +++ b/sound/soc/codecs/wm8962.c @@ -2564,7 +2564,7 @@ static int dsp2_event(struct snd_soc_dapm_widget *w, return 0; } -static const char *st_text[] = { "None", "Right"...
4bbdd45afdae208a7c4ade89cf602f89a6397cff
Analyze and fix the following issue in the Linux kernel code: irq_domain/powerpc: eliminate irq_map; use irq_alloc_desc() instead
Problem Details: This patch drops the powerpc-specific irq_map table and replaces it with directly using the irq_alloc_desc()/irq_free_desc() interfaces for allocating and freeing irq_desc structures. This patch is a preparation step for generalizing the powerpc-specific virq infrastructure to become irq_domains. As ...
```diff diff --git a/arch/powerpc/include/asm/irq.h b/arch/powerpc/include/asm/irq.h index cb06b39f8e61..abdd7ef28cbf 100644 --- a/arch/powerpc/include/asm/irq.h +++ b/arch/powerpc/include/asm/irq.h @@ -191,33 +191,6 @@ extern unsigned int irq_linear_revmap(struct irq_domain *host, irq_hw_number_t hwirq); ...
8b3d1cda4f5ff0d7c2ae910ea8fd03493996912f
Analyze and fix the following issue in the Linux kernel code: posix_types: Remove fd_set macros
Problem Details: <asm/posix_types.h> includes a set of macros that operate on file descriptors. Way long ago those were exported to user space, but nowadays they are #ifdef __KERNEL__. However, they are nothing but standard (nonatomic) bit operations, and we already have optimized versions of bit operations in the ke...
```diff diff --git a/include/asm-generic/posix_types.h b/include/asm-generic/posix_types.h index ac217600a9c7..e294fe66125b 100644 --- a/include/asm-generic/posix_types.h +++ b/include/asm-generic/posix_types.h @@ -92,76 +92,4 @@ typedef char * __kernel_caddr_t; typedef unsigned short __kernel_uid16_t; typedef unsig...
72937e1e342f5631d08df4ef0629e55bdcf74c76
Analyze and fix the following issue in the Linux kernel code: USB: Set wakeup bits for all children hubs.
Problem Details: This patch takes care of the race condition between the Function Wake Device Notification and the auto-suspend timeout for this situation: Roothub | (U3) hub A | (U3) hub B | (U3) device C When device C signals a resume, the xHCI driver will set the wakeup_bits for the roothub port that hub A i...
```diff diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 1c32bbac9862..994aa8853bac 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -853,12 +853,19 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) set_bit(port1, hub->change_bits); } else if ...
fae89ee8d7a9be6044aa3c657fc169c1dca0e6ac
Analyze and fix the following issue in the Linux kernel code: powerpc: Use generic posix_types.h
Problem Details: Change the powerpc architecture to use <asm-generic/posix_types.h>. [ v2: fix the definition for __kernel_ssize_t ] Signed-off-by: H. Peter Anvin <hpa@zytor.com> Link: http://lkml.kernel.org/r/1328677745-20121-16-git-send-email-hpa@zytor.com Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: P...
```diff diff --git a/arch/powerpc/include/asm/posix_types.h b/arch/powerpc/include/asm/posix_types.h index c4e396b540df..f1393252bbda 100644 --- a/arch/powerpc/include/asm/posix_types.h +++ b/arch/powerpc/include/asm/posix_types.h @@ -7,122 +7,22 @@ * assume GCC is being used. */ -typedef unsigned long __kernel_i...
abe763f2bccbc592d33a3a9c334acaefea022c0a
Analyze and fix the following issue in the Linux kernel code: ARM: OMAP2+: usb-host: fix compile warning
Problem Details: when commit 3528c58 (OMAP: omap_device: when building return platform_device instead of omap_device) started returning a platform_device instead of a omap_device pointer when building a device, it failed to convert all users introducing a compile warning when building arch/arm/mach-omap2/usb-host.c. T...
```diff diff --git a/arch/arm/mach-omap2/usb-host.c b/arch/arm/mach-omap2/usb-host.c index 771dc781b746..f51348dafafd 100644 --- a/arch/arm/mach-omap2/usb-host.c +++ b/arch/arm/mach-omap2/usb-host.c @@ -486,7 +486,7 @@ static void setup_4430ohci_io_mux(const enum usbhs_omap_port_mode *port_mode) void __init usbhs_init...
2ec1fc4e169acc0b8d6733ff028fd52e766773d9
Analyze and fix the following issue in the Linux kernel code: ARM: OMAP4: Move the barrier memboclk_steal() as part of reserve callback
Problem Details: arm_memblock_steal() is not suppose to be used outside ->reserve callback. OMAP barrier errata code was using it outside reserve callback and hence it was broken. Move the allocation as part of ->reserve callback to fix the it. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by...
```diff diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig index 41e6612ecbaf..ac6b1d3554d8 100644 --- a/arch/arm/mach-omap2/Kconfig +++ b/arch/arm/mach-omap2/Kconfig @@ -365,8 +365,8 @@ config OMAP3_SDRC_AC_TIMING going on could result in system crashes; config OMAP4_ERRATA_I688 - bool "OMAP...
f65bd5ec47a4461bc575d5d34902fd18b6ec5542
Analyze and fix the following issue in the Linux kernel code: RxRPC: Fix kcalloc parameters swapped
Problem Details: The first parameter should be "number of elements" and the second parameter should be "element size". Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
```diff diff --git a/net/rxrpc/ar-key.c b/net/rxrpc/ar-key.c index 4cba13e46ffd..ae3a035f5390 100644 --- a/net/rxrpc/ar-key.c +++ b/net/rxrpc/ar-key.c @@ -232,7 +232,7 @@ static int rxrpc_krb5_decode_principal(struct krb5_principal *princ, if (toklen <= (n_parts + 1) * 4) return -EINVAL; - princ->name_parts = kc...
0af2a0d0576205dda778d25c6c344fc6508fc81d
Analyze and fix the following issue in the Linux kernel code: tcp: fix tcp_shifted_skb() adjustment of lost_cnt_hint for FACK
Problem Details: This commit ensures that lost_cnt_hint is correctly updated in tcp_shifted_skb() for FACK TCP senders. The lost_cnt_hint adjustment in tcp_sacktag_one() only applies to non-FACK senders, so FACK senders need their own adjustment. This applies the spirit of 1e5289e121372a3494402b1b131b41bfe1cf9b7f - ex...
```diff diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 8116d06e042c..53c8ce4046b2 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -1403,6 +1403,10 @@ static int tcp_shifted_skb(struct sock *sk, struct sk_buff *skb, BUG_ON(!pcount); + /* Adjust hint for FACK. Non-FACK is handled in ...
45145b67f5895ff92207cffd74e65460a87920b2
Analyze and fix the following issue in the Linux kernel code: [media] dvb-core: fix DVBFE_ALGO_HW retune bug
Problem Details: Commit 7e07222 breaks DVBFE_ALGO_HW tuning after a retune is requested, which causes bad tuning on my TBS 6920. [ 0.769091] pci 0000:06:00.0: [14f1:8852] type 0 class 0x000400 [ 19.733530] CORE cx23885[0]: subsystem: 6920:8888, board: TurboSight TBS 6920 [card=14,autodetected] [ 762.824912] cx24...
```diff diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c index fbbe545a74cb..4555baa383b2 100644 --- a/drivers/media/dvb/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb/dvb-core/dvb_frontend.c @@ -655,6 +655,8 @@ restart: dprintk("%s: Retune requested, FESTATE_RET...
546c9736288e50d29feb204065b71f03c3461f86
Analyze and fix the following issue in the Linux kernel code: [media] [trivial] frontends: Fix typo in tda1004x.c
Problem Details: Correct spelling "alocate" to "allocate" in drivers/media/dvb/frontends/tda1004x.c Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
```diff diff --git a/drivers/media/dvb/frontends/tda1004x.c b/drivers/media/dvb/frontends/tda1004x.c index ae6f22aae677..35d72b46aa1e 100644 --- a/drivers/media/dvb/frontends/tda1004x.c +++ b/drivers/media/dvb/frontends/tda1004x.c @@ -1272,7 +1272,7 @@ struct dvb_frontend* tda10045_attach(const struct tda1004x_config* ...
0ee9f1dd7b910f712aa56133973d165d42a81707
Analyze and fix the following issue in the Linux kernel code: mlx4: fix QP tree trashing
Problem Details: When adding new unicast steer entry, before moving qp to state ready, actually before calling mlx4_RST2INIT_QP_wrapper(), there were added a lot of entries with local_qpn=0 into radix tree. This fact impacted the get_res() function and proper functioning of resource tracker in addition to adding trash ...
```diff diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c index 1420dbc947c2..629cc3018746 100644 --- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c +++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c @@ -374,6 +374,7 @@ static st...
58a30d6a3c2397f18a826f401e0f0e61e8868f19
Analyze and fix the following issue in the Linux kernel code: mlx4_core: fix buffer overrun
Problem Details: When passing MLX4_UC_STEER=1 it was translated to value 2 after mlx4_QP_ATTACH_wrapper. Therefore in new_steering_entry() unicast steer entries were added to index 2 of array of size 2. Fixing this bug by shift right to one position. Signed-off-by: Eugenia Emantayev <eugenia@mellanox.co.il> Reviewed-b...
```diff diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c index dcd819bfb2f0..1420dbc947c2 100644 --- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c +++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c @@ -2538,7 +2538,7 @@ int mlx...
03e4fd6eb25e6b46536ecdb0d1b7d33d46b15480
Analyze and fix the following issue in the Linux kernel code: ARM: OMAP4: cpuidle: Fix the C-state reporting to cpuidle governor.
Problem Details: OMAP4 cpuidle driver is reporting the state requested by governor rather than the actually attempted one. This is obviously misleading sysfs and powertop cpuidle statistics. Fix it so that stats are reported correctly. Reported-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Santosh Shilimkar <santo...
```diff diff --git a/arch/arm/mach-omap2/cpuidle44xx.c b/arch/arm/mach-omap2/cpuidle44xx.c index cfdbb86bc84e..72e018b9b260 100644 --- a/arch/arm/mach-omap2/cpuidle44xx.c +++ b/arch/arm/mach-omap2/cpuidle44xx.c @@ -65,7 +65,6 @@ static int omap4_enter_idle(struct cpuidle_device *dev, struct timespec ts_preidle, ts_po...
afa159538af61f1a65d48927f4e949fe514fb4fc
Analyze and fix the following issue in the Linux kernel code: [media] hdpvr: fix race conditon during start of streaming
Problem Details: status has to be set to STREAMING before the streaming worker is queued. hdpvr_transmit_buffers() will exit immediately otherwise. Reported-by: Joerg Desch <vvd.joede@googlemail.com> CC: stable@kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
```diff diff --git a/drivers/media/video/hdpvr/hdpvr-video.c b/drivers/media/video/hdpvr/hdpvr-video.c index 087f7c08cb85..41fd57b6ccfb 100644 --- a/drivers/media/video/hdpvr/hdpvr-video.c +++ b/drivers/media/video/hdpvr/hdpvr-video.c @@ -283,12 +283,13 @@ static int hdpvr_start_streaming(struct hdpvr_device *dev) ...
f67fd55fa96f7d7295b43ffbc4a97d8f55e473aa
Analyze and fix the following issue in the Linux kernel code: PCI: Add quirk for still enabled interrupts on Intel Sandy Bridge GPUs
Problem Details: Some BIOS implementations leave the Intel GPU interrupts enabled, even though no one is handling them (f.e. i915 driver is never loaded). Additionally the interrupt destination is not set up properly and the interrupt ends up -somewhere-. These spurious interrupts are "sticky" and the kernel disables ...
```diff diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index f5d09f4066f3..fb544d6d29f6 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -2924,6 +2924,40 @@ static void do_one_fixup_debug(void (*fn)(struct pci_dev *dev), struct pci_dev * duration); } +/* + * Some BIOS implementations leav...
3209874a1da2c51c7325e601d9634189ee178ad6
Analyze and fix the following issue in the Linux kernel code: PCI: Annotate PCI quirks in initcall_debug style
Problem Details: While diagnosing some boot time issues on a platform, all that I could see in the bootgraph/dmesg was that the system was spending a lot of time in applying one or more PCI quirks... which was virtually undebuggable. This patch adds printk's in "initcall_debug" style to the dmesg, which are added when...
```diff diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 64765474676f..f5d09f4066f3 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -26,6 +26,8 @@ #include <linux/dmi.h> #include <linux/pci-aspm.h> #include <linux/ioport.h> +#include <linux/sched.h> +#include <linux/ktime.h> #include <...
309c665110ee6a8d9a28f802c41eaab50ceebbf7
Analyze and fix the following issue in the Linux kernel code: PCI hotplug: cpcihp: fix debug module parameter to be bool
Problem Details: Fix debug variable from module parameter to be really bool to fix 'warning: return from incompatible pointer type'. Acked-by: Scott Murray <scott@spiteful.org> Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
```diff diff --git a/drivers/pci/hotplug/cpcihp_generic.c b/drivers/pci/hotplug/cpcihp_generic.c index fb3f84661bdc..81af764c629b 100644 --- a/drivers/pci/hotplug/cpcihp_generic.c +++ b/drivers/pci/hotplug/cpcihp_generic.c @@ -62,7 +62,7 @@ #define warn(format, arg...) printk(KERN_WARNING "%s: " format "\n", MY_NAME ,...
26f41062f28de65e11d3cf353e52d0be73442be1
Analyze and fix the following issue in the Linux kernel code: PCI: check for pci bar restore completion and retry
Problem Details: On some OEM systems, pci_restore_state() is called while FLR has not yet completed. As a result, PCI BAR register restore is not successful. This fix reads back the restored value and compares it with saved value and re-tries 10 times before giving up. Signed-off-by: Jean Guyader <jean.guyader@eu.ci...
```diff diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 053670e09e2b..9c89447e7b21 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -959,6 +959,7 @@ void pci_restore_state(struct pci_dev *dev) { int i; u32 val; + int tries; if (!dev->state_saved) return; @@ -973,12 +974,16 @@ void pci_rest...
4e2ce405b24eef9f4cc947bf5f430ca27b474f1f
Analyze and fix the following issue in the Linux kernel code: PCI: pciehp: make check_link_active more helpful
Problem Details: A few changes: - remove the 'inline' and let the complier decide - return a bool to indicate whether the link was active - add a debug message to indicate link state when it beocmes active Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
```diff diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c index 7dc9e33746a6..a8c1f74a1e36 100644 --- a/drivers/pci/hotplug/pciehp_hpc.c +++ b/drivers/pci/hotplug/pciehp_hpc.c @@ -241,13 +241,20 @@ static int pcie_write_cmd(struct controller *ctrl, u16 cmd, u16 mask) return retval; } ...
efdc87dab1cdf25ba631181ac0ead3fb2023dd10
Analyze and fix the following issue in the Linux kernel code: PCI: Separate pci_bus_read_dev_vendor_id from pci_scan_device
Problem Details: We can reuse it for pciehp probing. -v2: according to Kenji, fix crs timeout checking, and export the function for later use when pciehp is compiled as a module. Suggested-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jesse Barnes <jbarnes@virt...
```diff diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 1009a5e88e53..aaf7ff8c517f 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -207,6 +207,8 @@ enum pci_bar_type { pci_bar_mem64, /* A 64-bit memory BAR */ }; +bool pci_bus_read_dev_vendor_id(struct pci_bus *bus, int devfn, u32 *pl, + int ...
ac205b7bb72fa4227d2e79979bbe2b4687cdf44d
Analyze and fix the following issue in the Linux kernel code: PCI: make sriov work with hotplug remove
Problem Details: When hot removing a pci express module that has a pcie switch and supports SRIOV, we got: [ 5918.610127] pciehp 0000:80:02.2:pcie04: pcie_isr: intr_loc 1 [ 5918.615779] pciehp 0000:80:02.2:pcie04: Attention button interrupt received [ 5918.622730] pciehp 0000:80:02.2:pcie04: Button pressed on Slot(3) ...
```diff diff --git a/drivers/pci/remove.c b/drivers/pci/remove.c index ef8b18c48f26..82f8ae572703 100644 --- a/drivers/pci/remove.c +++ b/drivers/pci/remove.c @@ -144,7 +144,15 @@ static void pci_stop_bus_devices(struct pci_bus *bus) { struct list_head *l, *n; - list_for_each_safe(l, n, &bus->devices) { + /* + * ...
b592443d9045f0880eb4d8cc9125075744db4b9e
Analyze and fix the following issue in the Linux kernel code: PCI: add debug print out for add_size
Problem Details: For use in debugging resource reallocation. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
```diff diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index c845d18bb126..ae0b1f2c9e0a 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -118,10 +118,13 @@ static resource_size_t get_res_add_size(struct list_head *head, list_for_each_entry(dev_res, head, list) { if (dev_res->...
a4ac9fea016fc5c09227eb479bd35e34978323a4
Analyze and fix the following issue in the Linux kernel code: PCI : Calculate right add_size
Problem Details: During debug of one SRIOV enabled hotplug device, we found found that add_size is not passed properly. The device has devices under two level bridges: +-[0000:80]-+-00.0-[81-8f]-- | +-01.0-[90-9f]-- | +-02.0-[a0-af]----00.0-[a1-a3]--+-02.0-[a2]--+-00.0 Oracle Corporation Devic...
```diff diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index 86b69f85f900..9d932f4e4f98 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -612,7 +612,7 @@ static void pbus_size_io(struct pci_bus *bus, resource_size_t min_size, if (children_add_size > add_size) add_size = childre...
0dea210b1769f191d6b2bc3cc86e51481837ec5e
Analyze and fix the following issue in the Linux kernel code: PCI: Fix typo in setup-res.c
Problem Details: Correct spelling "resouce" to "resource" in dricers/pci/setup-res.c Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
```diff diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c index 85c8470c35e2..6923a9bce49e 100644 --- a/drivers/pci/setup-res.c +++ b/drivers/pci/setup-res.c @@ -250,7 +250,7 @@ int pci_reassign_resource(struct pci_dev *dev, int resno, resource_size_t addsiz int ret; if (!res->parent) { - dev_info(&...
6fbf9e7a90862988c278462d85ce9684605a52b2
Analyze and fix the following issue in the Linux kernel code: PCI: Introduce __pci_reset_function_locked to be used when holding device_lock.
Problem Details: The use case of this is when a driver wants to call FLR when a device is attached to it using the SysFS "bind" or "unbind" functionality. The call chain when a user does "bind" looks as so: echo "0000:01.07.0" > /sys/bus/pci/drivers/XXXX/bind and ends up calling: driver_bind: device_lock(dev)...
```diff diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index af295bb21d62..053670e09e2b 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -3162,6 +3162,31 @@ int __pci_reset_function(struct pci_dev *dev) } EXPORT_SYMBOL_GPL(__pci_reset_function); +/** + * __pci_reset_function_locked - reset a PCI device...
351fc6d1a5175d587d4f2b00ec7bff79b13ec48a
Analyze and fix the following issue in the Linux kernel code: PCI: Fix starting basis for resource requests
Problem Details: pci_revert_fw_address() is used to reinstate a PCI device's original FW-assigned BIOS BAR value(s) if normal resource assignment fails. When attempting to reinstate an address, the point within the resource tree from which to attempt the new resource request should be the parent resource corresponding...
```diff diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c index b66bfdbd21f7..3cf47d34becf 100644 --- a/drivers/pci/setup-res.c +++ b/drivers/pci/setup-res.c @@ -165,15 +165,19 @@ static int pci_revert_fw_address(struct resource *res, struct pci_dev *dev, resource_size_t start, end; int ret = 0; - if...
b7f5b7dec3d539a84734f2bcb7e53fbb1532a40b
Analyze and fix the following issue in the Linux kernel code: drm/radeon/kms: fix MSI re-arm on rv370+
Problem Details: MSI_REARM_EN register is a write only trigger register. There is no need RMW when re-arming. May fix: https://bugs.freedesktop.org/show_bug.cgi?id=41668 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> CC: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
```diff diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index bfd36ab643a6..18cd84fae99c 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -789,9 +789,7 @@ int r100_irq_process(struct radeon_device *rdev) WREG32(RADEON_AIC_CNTL, msi_rearm | RS400_MSI_REARM)...
6e4b74e4690dd03b5664fa4895c3db0607d64742
Analyze and fix the following issue in the Linux kernel code: usb: renesas: fix scheduling in atomic context bug
Problem Details: The current renesas_usbhs driver triggers BUG: scheduling while atomic: ksoftirqd/0/3/0x00000102 with enabled CONFIG_DEBUG_ATOMIC_SLEEP, by submitting DMA transfers from an atomic (tasklet) context, which is not supported by the shdma dmaengine driver. Fix it by switching to a work. Signed-off-by: G...
```diff diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c index fb2a88c5c210..3648c82a17fe 100644 --- a/drivers/usb/renesas_usbhs/fifo.c +++ b/drivers/usb/renesas_usbhs/fifo.c @@ -765,9 +765,9 @@ static int __usbhsf_dma_map_ctrl(struct usbhs_pkt *pkt, int map) } static void usbhsf_dma...
8a8ed1f5143b3df312e436ab15290e4a7ca6a559
Analyze and fix the following issue in the Linux kernel code: drm/i915: Fix race condition in accessing GMBUS
Problem Details: GMBUS has several ports and each has it's own corresponding I2C adpater. When multiple I2C adapters call gmbus_xfer() at the same time there is a race condition in using the underlying GMBUS controller. Fixing this by adding a mutex lock when calling gmbus_xfer(). v2: Moved gmbus_mutex below intel_gmb...
```diff diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index caec1fdb7dda..8e3eb5e282a1 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -313,6 +313,10 @@ typedef struct drm_i915_private { u32 reg0; } *gmbus; + /** gmbus_mutex protects against ...
27c3afe6e1cf129faac90405121203962da08ff4
Analyze and fix the following issue in the Linux kernel code: ALSA: intel8x0: Fix default inaudible sound on Gateway M520
Problem Details: BugLink: https://bugs.launchpad.net/bugs/930842 The reporter states that audio is inaudible by default without muting 'External Amplifier'. Add a quirk to handle his SSID so that changing the control is not necessary. Reported-and-tested-by: Benjamin Carlson <elderbubba0810@gmail.com> Cc: <stable@ker...
```diff diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c index 9f3b01bb72c8..e0a4263baa20 100644 --- a/sound/pci/intel8x0.c +++ b/sound/pci/intel8x0.c @@ -2100,6 +2100,12 @@ static struct ac97_quirk ac97_quirks[] __devinitdata = { .name = "MSI P4 ATX 645 Ultra", .type = AC97_TUNE_HP_ONLY }, + { + .subv...
72ed116fe68a2adb45234fcffffeec04d789071b
Analyze and fix the following issue in the Linux kernel code: Staging: sm7xx: smtcfb.h: fix sparse error
Problem Details: Declaration between .h and .c was mismatched. Matched both declara tions avoiding an sparse check error. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
```diff diff --git a/drivers/staging/sm7xx/smtcfb.h b/drivers/staging/sm7xx/smtcfb.h index c5e6989e65ab..ab95af2b9c07 100644 --- a/drivers/staging/sm7xx/smtcfb.h +++ b/drivers/staging/sm7xx/smtcfb.h @@ -38,7 +38,7 @@ #define dac_reg (0x3c8) #define dac_val (0x3c9) -extern char *smtc_RegBaseAddress; +extern char __i...
09f993e6844a0cacec2ccff72f04c4fc436a2358
Analyze and fix the following issue in the Linux kernel code: staging:iio:dac: Fix kcalloc parameters swapped
Problem Details: The first parameter should be "number of elements" and the second parameter should be "element size". Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
```diff diff --git a/drivers/staging/iio/dac/ad5360.c b/drivers/staging/iio/dac/ad5360.c index 710b256affcc..cec3693b50a3 100644 --- a/drivers/staging/iio/dac/ad5360.c +++ b/drivers/staging/iio/dac/ad5360.c @@ -439,8 +439,8 @@ static int __devinit ad5360_alloc_channels(struct iio_dev *indio_dev) struct iio_chan_spec ...
5f01f7f301db567a7a2b99d012db1c408ce0e9de
Analyze and fix the following issue in the Linux kernel code: Staging: quickstart: Fix compilation warning on 64 bit arch
Problem Details: acpi_size is u32 or u64 depending on architecture. Cast it to unsigned long and use %lu for printing. This fix following build warning: drivers/staging/quickstart/quickstart.c: In function ‘quickstart_acpi_ghid’: drivers/staging/quickstart/quickstart.c:212:5: warning: format ‘%u’ expects argument of t...
```diff diff --git a/drivers/staging/quickstart/quickstart.c b/drivers/staging/quickstart/quickstart.c index 352b7ecd6cbb..cac320738142 100644 --- a/drivers/staging/quickstart/quickstart.c +++ b/drivers/staging/quickstart/quickstart.c @@ -209,8 +209,9 @@ static int quickstart_acpi_ghid(struct quickstart_acpi *quickstar...
778a785f02ad846446e91dab49331bd7d853c514
Analyze and fix the following issue in the Linux kernel code: powerpc/pseries/eeh: Fix crash when error happens during device probe
Problem Details: EEH may happen during a PCI driver probe. If the driver is trying to access some register in a loop, the EEH code will try to print the driver name. But the driver pointer in struct pci_dev is not set until probe returns successfully. Use a function to test if the device and the driver pointer is NULL...
```diff diff --git a/arch/powerpc/include/asm/ppc-pci.h b/arch/powerpc/include/asm/ppc-pci.h index 43268f15004e..6d422979ebaf 100644 --- a/arch/powerpc/include/asm/ppc-pci.h +++ b/arch/powerpc/include/asm/ppc-pci.h @@ -142,6 +142,11 @@ static inline const char *eeh_pci_name(struct pci_dev *pdev) return pdev ? pci_nam...
444080d13d05dc38d07dd3bf751d38bce7ab7c72
Analyze and fix the following issue in the Linux kernel code: powerpc/pseries: Fix partition migration hang in stop_topology_update
Problem Details: This fixes a hang that was observed during live partition migration. Since stop_topology_update must not be called from an interrupt context, call it earlier in the migration process. The hang observed can be seen below: WARNING: at kernel/timer.c:1011 Modules linked in: ip6t_LOG xt_tcpudp xt_pkttype ...
```diff diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c index 517b1d8f455b..9f843cdfee9e 100644 --- a/arch/powerpc/kernel/rtas.c +++ b/arch/powerpc/kernel/rtas.c @@ -716,7 +716,6 @@ static int __rtas_suspend_last_cpu(struct rtas_suspend_me_data *data, int wake_w int cpu; slb_set_size(SLB_MIN_...
f1c853b53cf2b49eb32791072c8a8ee04f122f58
Analyze and fix the following issue in the Linux kernel code: powerpc/powernv: Disable interrupts while taking phb->lock
Problem Details: We need to disable interrupts when taking the phb->lock. Otherwise we could deadlock with pci_lock taken from an interrupt. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
```diff diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c index a70bc1e385eb..f92b9ef7340e 100644 --- a/arch/powerpc/platforms/powernv/pci.c +++ b/arch/powerpc/platforms/powernv/pci.c @@ -52,32 +52,38 @@ static int pnv_msi_check_device(struct pci_dev* pdev, int nvec, int type) ...
6fe5f5f3ffade25aa94526010f219df3be521bf7
Analyze and fix the following issue in the Linux kernel code: powerpc: Fix WARN_ON in decrementer_check_overflow
Problem Details: We use __get_cpu_var() which triggers a false positive warning in smp_processor_id() thinking interrupts are enabled (at this point, they are soft-enabled but hard-disabled). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
```diff diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 701d4aceb4f4..01e2877e8e04 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -118,10 +118,14 @@ static inline notrace void set_soft_enabled(unsigned long enable) static inline notrace void decrementer_check_overflo...
7a768d30caa30e66ba89659f1845cc35b1bfc715
Analyze and fix the following issue in the Linux kernel code: powerpc/wsp: Fix IRQ affinity setting
Problem Details: We call the cache_hwirq_map() function with a linux IRQ number but it expects a HW irq number. This triggers a BUG on multic-chip setups in addition to not doing the right thing. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
```diff diff --git a/arch/powerpc/platforms/wsp/ics.c b/arch/powerpc/platforms/wsp/ics.c index 576874392543..97fe82ee8633 100644 --- a/arch/powerpc/platforms/wsp/ics.c +++ b/arch/powerpc/platforms/wsp/ics.c @@ -346,7 +346,7 @@ static int wsp_chip_set_affinity(struct irq_data *d, * For the moment only implement deliv...
454c0bfd0c6469276dec766e5b41efcf0ccf2619
Analyze and fix the following issue in the Linux kernel code: powerpc/wsp: Permanently enable PCI class code workaround
Problem Details: It appears that on the Chroma card, the class code of the root complex is still wrong even on DD2 or later chips. This could be a firmware issue, but that breaks resource allocation so let's unconditionally fix it up. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
```diff diff --git a/arch/powerpc/platforms/wsp/wsp_pci.c b/arch/powerpc/platforms/wsp/wsp_pci.c index e0262cd0e2d3..d24b3acf858e 100644 --- a/arch/powerpc/platforms/wsp/wsp_pci.c +++ b/arch/powerpc/platforms/wsp/wsp_pci.c @@ -468,15 +468,15 @@ static void __init wsp_pcie_configure_hw(struct pci_controller *hose) #def...
fcf83067bf6eb101a35620d752bd559d473cfbaa
Analyze and fix the following issue in the Linux kernel code: vfs: fix compat_sys_stat() handling of overflows in st_nlink
Problem Details: Massaged cp_compat_stat() into form closer to cp_new_stat(); the only real issue had been in handling of st_nlink overflows - native 32bit stat(2) returns -EOVERFLOW in such situations, compat one silently loses upper bits. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```diff diff --git a/fs/compat.c b/fs/compat.c index fa9d721ecfee..07880bae28a9 100644 --- a/fs/compat.c +++ b/fs/compat.c @@ -131,41 +131,35 @@ asmlinkage long compat_sys_utimes(const char __user *filename, struct compat_tim static int cp_compat_stat(struct kstat *stat, struct compat_stat __user *ubuf) { - compat_...
dcdbed853d9fbb0547b781ba676049b87f54129a
Analyze and fix the following issue in the Linux kernel code: quota: Fix deadlock with suspend and quotas
Problem Details: This script causes a kernel deadlock: set -e DEVICE=/dev/vg1/linear lvchange -ay $DEVICE mkfs.ext3 $DEVICE mount -t ext3 -o usrquota,grpquota $DEVICE /mnt/test quotacheck -gu /mnt/test umount /mnt/test mount -t ext3 -o usrquota,grpquota $DEVICE /mnt/test quotaon /mnt/test dmsetup suspend $DEVICE setquo...
```diff diff --git a/fs/quota/quota.c b/fs/quota/quota.c index 7898cd688a00..fc2c4388d126 100644 --- a/fs/quota/quota.c +++ b/fs/quota/quota.c @@ -292,11 +292,26 @@ static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id, } } +/* Return 1 if 'cmd' will block on frozen filesystem */ +static int q...
074b85175a43a23fdbde60f55feea636e0bf0f85
Analyze and fix the following issue in the Linux kernel code: vfs: fix panic in __d_lookup() with high dentry hashtable counts
Problem Details: When the number of dentry cache hash table entries gets too high (2147483648 entries), as happens by default on a 16TB system, use of a signed integer in the dcache_init() initialization loop prevents the dentry_hashtable from getting initialized, causing a panic in __d_lookup(). Fix this in dcache_in...
```diff diff --git a/fs/dcache.c b/fs/dcache.c index 16a53cc2cc02..fe19ac13f75f 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -2968,7 +2968,7 @@ __setup("dhash_entries=", set_dhash_entries); static void __init dcache_init_early(void) { - int loop; + unsigned int loop; /* If hashes are distributed across NUMA no...
1d6f2097865e64963e90cce04980dce2f9fc023f
Analyze and fix the following issue in the Linux kernel code: autofs4 - fix lockdep splat in autofs
Problem Details: When recursing down the locks when traversing a tree/list in get_next_positive_dentry() or get_next_positive_subdir() a lock can change from being nested to being a parent which breaks lockdep. This patch tells lockdep about what we did. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Acked-by: Ia...
```diff diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c index 450f529a4eae..1feb68ecef95 100644 --- a/fs/autofs4/expire.c +++ b/fs/autofs4/expire.c @@ -124,6 +124,7 @@ start: /* Negative dentry - try next */ if (!simple_positive(q)) { spin_unlock(&p->d_lock); + lock_set_subclass(&q->d_lock.dep_map, 0, _R...
e188dc02d3a9c911be56eca5aa114fe7e9822d53
Analyze and fix the following issue in the Linux kernel code: vfs: fix d_inode_lookup() dentry ref leak
Problem Details: d_inode_lookup() leaks a dentry reference on IS_DEADDIR(). Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> CC: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```diff diff --git a/fs/namei.c b/fs/namei.c index 208c6aa4a989..a780ea515c47 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -1095,8 +1095,10 @@ static struct dentry *d_inode_lookup(struct dentry *parent, struct dentry *dentr struct dentry *old; /* Don't create child dentry for a dead directory. */ - if (unlikely(IS...
422782249927e887a4c032d1d7e1f59de281ecbb
Analyze and fix the following issue in the Linux kernel code: tg3: Fix NVRAM page writes on newer devices
Problem Details: On newer devices, the hardware expects the NVRAM address register to be written only once per NVRAM page. To do otherwise causes NVRAM corruption. This patch fixes the problem. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
```diff diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index cb17885cad47..67b6d61abfe1 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -3140,8 +3140,6 @@ static int tg3_nvram_write_block_buffered(struct tg3 *tp, u32 offset, u32 len, ...
3198e07fd64aa8c3a38dda33bcc0f44265eb581e
Analyze and fix the following issue in the Linux kernel code: tg3: Fix copper autoneg adv checks
Problem Details: When checking the autoneg advertisements, the driver failed to include the master and master enable bits for the bcm5701. This patch fixes the problem. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.ne...
```diff diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index 4a0b9af71238..cb17885cad47 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -4027,7 +4027,16 @@ static bool tg3_phy_copper_an_config_ok(struct tg3 *tp, u32 *lcladv) if (tg...
b546e46f5c9f19a921d6f62db80f2e9371bc0558
Analyze and fix the following issue in the Linux kernel code: tg3: Fix stats while interface is down
Problem Details: If the tg3 interface is down, the driver will return ethtool stats uninitialized. This patch zeroes out the destination stat buffer in such a case. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
```diff diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index 0a765f109cc1..4a0b9af71238 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -10154,9 +10154,6 @@ static struct tg3_ethtool_stats *tg3_get_estats(struct tg3 *tp, struct tg3_...
3906969189a409e590a51b18c86a92d0506c9372
Analyze and fix the following issue in the Linux kernel code: tg3: Disable new DMA engine for 57766
Problem Details: A bug was found in the new DMA engine for the 57766. This patch disables it, which causes the device to fallback to the old DMA engine. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
```diff diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index d418f954c72d..0a765f109cc1 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -8896,9 +8896,6 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy) if (tg3_flag(tp, PCI_E...
f9c2a0dc42a6938ff2a80e55ca2bbd1d5581c72e
Analyze and fix the following issue in the Linux kernel code: mmc: dw_mmc: Fix PIO mode with support of highmem
Problem Details: Current PIO mode makes a kernel crash with CONFIG_HIGHMEM. Highmem pages have a NULL from sg_virt(sg). This patch fixes the following problem. Unable to handle kernel NULL pointer dereference at virtual address 00000000 pgd = c0004000 [00000000] *pgd=00000000 Internal error: Oops: 817 [#1] PREEMPT SMP...
```diff diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 0e342793ff14..8bec1c36b159 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -22,7 +22,6 @@ #include <linux/ioport.h> #include <linux/module.h> #include <linux/platform_device.h> -#include <linux/scatterlist.h> ...
00d9ac08757049f334803b3d4dd202a6b1687dab
Analyze and fix the following issue in the Linux kernel code: mmc: block: Init ro_lock sysfs attr to fix lockdep warnings
Problem Details: Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Johan Rudholm <johan.rudholm@stericsson.com> Signed-off-by: Ulf Hansson <ulf.hansson@stericsson.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Namjae Jeon <linkinjeon@gmail.com> Signed-off-by: Chris Ball <c...
```diff diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index 0cad48a284a8..c6a383d0244d 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -1694,6 +1694,7 @@ static int mmc_add_disk(struct mmc_blk_data *md) md->power_ro_lock.show = power_ro_lock_show; md->power_ro_lock.sto...
5ba85d95cae3837665241e6df12aea83b6bf7c32
Analyze and fix the following issue in the Linux kernel code: mmc: sh_mmcif: fix late delayed work initialisation
Problem Details: If the driver is loaded with a card in the slot, mmc_add_host() will schedule an immediate card-detection work, which will start IO and wait for command completion. Usually the kernel first returns to the sh_mmcif probe function, lets it finish and only then schedules the rescan work. But sometimes, ex...
```diff diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c index f5d8b53be333..352d4797865b 100644 --- a/drivers/mmc/host/sh_mmcif.c +++ b/drivers/mmc/host/sh_mmcif.c @@ -1327,7 +1327,7 @@ static int __devinit sh_mmcif_probe(struct platform_device *pdev) if (ret < 0) goto clean_up2; - mmc_add...