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5110effee8fde2edfacac9cd12a9960ab2dc39ea
Analyze and fix the following issue in the Linux kernel code: net: Do delayed neigh confirmation.
Problem Details: When a dst_confirm() happens, mark the confirmation as pending in the dst. Then on the next packet out, when we have the neigh in-hand, do the update. This removes the dependency in dst_confirm() of dst's having an attached neigh. While we're here, remove the explicit 'dst' NULL check, all except 2 ...
```diff diff --git a/include/net/dst.h b/include/net/dst.h index f0bf3b8d5911..84e7a3ff968d 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -51,7 +51,7 @@ struct dst_entry { int (*input)(struct sk_buff *); int (*output)(struct sk_buff *); - int flags; + unsigned short flags; #define DST_HOST 0x...
a9340ccab547f24e3b398b7e3ebd792827ff1be1
Analyze and fix the following issue in the Linux kernel code: drm/i915: properly SIGBUS on I/O errors
Problem Details: ... instead of looping endless with no hope of ever serving that page-fault. We only need to break out of this loop when the gpu died, to run the reset work (and hopefully resurrect it). To clarify questions Chris raised on irc: This is about handling I/O errors not from our own code, but e.g. when th...
```diff diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 7d285554333f..2b54142a46ed 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1141,6 +1141,11 @@ unlock: out: switch (ret) { case -EIO: + /* If this -EIO is due to a gpu hang, give the ...
d6b2c790a4742a69624e6884b48e5d72f275abd0
Analyze and fix the following issue in the Linux kernel code: drm/i915: non-interruptible sleeps can't handle -EAGAIN
Problem Details: So don't return -EAGAIN, even in the case of a gpu hang. Remap it to -EIO instead. Note that this isn't really an issue with interruptability, but more that we have quite a few codepaths (mostly around kms stuff) that simply can't handle any errors and hence not even -EAGAIN. Instead of adding proper f...
```diff diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index d839e4c24d69..6c3a0bb91851 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1336,6 +1336,8 @@ i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj) void i915_gem_retire_requests(s...
d54a02c041ccfdcfe3efcd1e5b90c6e8d5e7a8d9
Analyze and fix the following issue in the Linux kernel code: drm/i915: don't trylock in the gpu reset code
Problem Details: Simply failing to reset the gpu because someone else might still hold the mutex isn't a great idea - I see reliable silent reset failures. And gpu reset simply needs to be reliable and Just Work. "But ... the deadlocks!" We already kick all processes waiting for the gpu before launching the reset wor...
```diff diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 6edb2d5ec13c..e754cdfaec79 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -730,8 +730,7 @@ int i915_reset(struct drm_device *dev) if (!i915_try_reset) return 0; - if (!mutex_trylock...
4c3c115a1eaea5c699caa49e824df6e5b48396a4
Analyze and fix the following issue in the Linux kernel code: drm/i915: fix PIPE_DDI_PORT_MASK
Problem Details: Only bits 30:28, bit 31 is PIPE_DDI_FUNC_ENABLE. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
```diff diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 4ddc62ecf839..1bd17e7dd479 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -4283,7 +4283,7 @@ PIPE_DDI_FUNC_CTL_B) #define PIPE_DDI_FUNC_ENABLE (1<<31) /* Those bits are ignored b...
2514bc510d0c3aadcc5204056bb440fa36845147
Analyze and fix the following issue in the Linux kernel code: drm/i915: prefer wide & slow to fast & narrow in DP configs
Problem Details: High frequency link configurations have the potential to cause trouble with long and/or cheap cables, so prefer slow and wide configurations instead. This patch has the potential to cause trouble for eDP configurations that lie about available lanes, so if we run into that we can make it conditional o...
```diff diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 76a708029dcb..611080b32e40 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -733,8 +733,8 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode, bpp = adjusted_...
930ebb462422117e12b85bb5fd6548ed13d0afb5
Analyze and fix the following issue in the Linux kernel code: drm/i915: fix up ilk rc6 disabling confusion
Problem Details: While creating the new enable/disable_gt_powersave functions in commit 8090c6b9daa04dda649ac0a2209601042abfb0a4 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Sun Jun 24 16:42:32 2012 +0200 drm/i915: wrap up gt powersave enabling functions I've botched up the handling of ironlake_disable...
```diff diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 60f6974d20d4..5a529b69110f 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1516,7 +1516,6 @@ extern bool intel_fbc_enabled(struct drm_device *dev); extern void intel_disable_fbc(struct dr...
5a7dc92a0b55ccaa6e342ec212657d6fc806e790
Analyze and fix the following issue in the Linux kernel code: drm/i915: add RPS configuration for Haswell
Problem Details: Most of the RPS and RC6 enabling functionality is similar to what we had on Gen6/Gen7, so we preserve most of the registers. Note that Haswell only has RC6, so account for that as well. As suggested by Daniel Vetter, to reduce the amount of changes in the patch, we still write the RC6p/RC6pp threshold...
```diff diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 40000841b39d..3be31a4cb8fb 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -4132,6 +4132,7 @@ #define GEN6_RP_UP_IDLE_MIN (0x1<<3) #define GEN6_RP_UP_BUSY_AVG (0x2<<3) #define ...
64e2bc41304726a5ca8a4d37754db69b88841ebf
Analyze and fix the following issue in the Linux kernel code: clk: mxs: imx28: decrease the frequency of ref_io1 for SSP2 and SSP3
Problem Details: SSP0 and SSP1 use ref_io0 which has decreased frequency. Expand the frequency fix for ref_io1 to get SSP2 and SSP3 to work. Signed-off-by: Lauri Hintsala <lauri.hintsala@bluegiga.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
```diff diff --git a/drivers/clk/mxs/clk-imx28.c b/drivers/clk/mxs/clk-imx28.c index 365053f052cd..98624eec5dd4 100644 --- a/drivers/clk/mxs/clk-imx28.c +++ b/drivers/clk/mxs/clk-imx28.c @@ -112,11 +112,11 @@ static void __init clk_misc_init(void) /* * 480 MHz seems too high to be ssp clock source directly, - *...
11604721a3c4bea60e2ddd9e4e30d741ecdba7b0
Analyze and fix the following issue in the Linux kernel code: ipv4: Fix crashes in ip_options_compile().
Problem Details: The spec_dst uses should be guarded by skb_rtable() being non-NULL not just the SKB being non-null. Reported-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
```diff diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c index 766dfe56885a..1f022510abe3 100644 --- a/net/ipv4/ip_options.c +++ b/net/ipv4/ip_options.c @@ -253,12 +253,15 @@ int ip_options_compile(struct net *net, { __be32 spec_dst = (__force __be32) 0; unsigned char *pp_ptr = NULL; + struct rtable *rt ...
59560a38a379b6c9048620ee10711d3c0c5974b3
Analyze and fix the following issue in the Linux kernel code: netfilter: nfnetlink: check callbacks before using those in nfnetlink_rcv_msg
Problem Details: nfnetlink_rcv_msg() might call a NULL callback which will cause NULL pointer dereference. Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
```diff diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c index 3e797d1fcb94..4acdd76bb6c4 100644 --- a/net/netfilter/nfnetlink.c +++ b/net/netfilter/nfnetlink.c @@ -184,9 +184,11 @@ replay: lockdep_is_held(&nfnl_mutex)) != ss || nfnetlink_find_client(type, ss) != nc) err = -EAGAIN; ...
3725f3ed1246301059eaa1c978ad7133fe567433
Analyze and fix the following issue in the Linux kernel code: kconfig: fix check-lxdialog for DLL platforms
Problem Details: Import libraries on Cygwin and MinGW/MSYS use the .dll.a suffix, so checking this suffix is necessary to make sure ncurses will still be found when built without static libraries. Signed-off-by: Yaakov Selkowitz <yselkowitz@users.sourceforge.net> Signed-off-by: Michal Marek <mmarek@suse.cz>
```diff diff --git a/scripts/kconfig/lxdialog/check-lxdialog.sh b/scripts/kconfig/lxdialog/check-lxdialog.sh index b75820bbdd3a..e3b12c010417 100644 --- a/scripts/kconfig/lxdialog/check-lxdialog.sh +++ b/scripts/kconfig/lxdialog/check-lxdialog.sh @@ -4,7 +4,7 @@ # What library to link ldflags() { - for ext in so a d...
d7c67a2e93334f7d290ba5fc2b2129b9d8ecd84f
Analyze and fix the following issue in the Linux kernel code: kconfig/nconf: fix compile with ncurses reentrant API
Problem Details: ESCDELAY is a global variable which is replaced by getter and setter functions with NCURSES_REENTRANT. This fixes the following error: nconf.c: In function ‘main’: nconf.c:1506:2: error: lvalue required as left operand of assignment Signed-off-by: Yaakov Selkowitz <yselkowitz@users.sourceforge.net> ...
```diff diff --git a/scripts/kconfig/nconf.c b/scripts/kconfig/nconf.c index 8c0eb65978c9..d945de5c43ac 100644 --- a/scripts/kconfig/nconf.c +++ b/scripts/kconfig/nconf.c @@ -1503,7 +1503,11 @@ int main(int ac, char **av) } notimeout(stdscr, FALSE); +#if NCURSES_REENTRANT + set_escdelay(1); +#else ESCDELAY = 1;...
32e1eb59f7042c03cb8dbb598e7c97fddbb62ac2
Analyze and fix the following issue in the Linux kernel code: ARM: fix mach-versatile/pci.c warning
Problem Details: arch/arm/mach-versatile/pci.c: In function 'versatile_map_irq': arch/arm/mach-versatile/pci.c:342: warning: unused variable 'devslot' Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
```diff diff --git a/arch/arm/mach-versatile/pci.c b/arch/arm/mach-versatile/pci.c index bec933b04ef0..e95bf84cc837 100644 --- a/arch/arm/mach-versatile/pci.c +++ b/arch/arm/mach-versatile/pci.c @@ -339,7 +339,6 @@ void __init pci_versatile_preinit(void) static int __init versatile_map_irq(const struct pci_dev *dev, u...
f63870924f83ebb66b5eb8fb8dde83bf9be252cc
Analyze and fix the following issue in the Linux kernel code: ARM: prima2: enable gpiolib unconditionally
Problem Details: The pinctrl code needs GPIOLIB to be enabled, so make sure that it cannot be built otherwise. This fixes the prima2_defconfig. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Barry Song <21cnbao@gmail.com>
```diff diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 571b3d25c9bc..a851307f8755 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -389,7 +389,7 @@ config ARCH_PRIMA2 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform" select CPU_V7 select NO_IOPORT - select ARCH_WANT_OPTIONAL_GPIOLIB + select ARCH_RE...
d7a0b5133f6b1d53d693b9b9873e64e3c8f0db0e
Analyze and fix the following issue in the Linux kernel code: ARM: OMAP2+: hwmod data: Fix wrong McBSP clock alias on OMAP4
Problem Details: The commit 503d0ea24d1d3dd3db95e5e0edd693da7a2a23eb ARM: OMAP4: hwmod data: Add aliases for McBSP fclk clocks added a wrong "prcm_clk" alias for PRCM clock whereas the McBSP driver and previous OMAPs are using "prcm_fck". It thus lead to the following warning. [ 47.409729] omap-mcbsp: clks: coul...
```diff diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index 0a1b24702091..b7bcba5221ba 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -1928,7 +1928,7 @@ static struct omap_hwmod_dma_info omap44xx_mcbsp1_s...
0cc15d03bcccdf95e2bd82e094e6064e61b54207
Analyze and fix the following issue in the Linux kernel code: floppy: Run floppy initialization asynchronous
Problem Details: floppy_init is quite slow, 3s on my test system to determine that there is no floppy. Run it asynchronous to the other init calls to improve boot time. [jkosina@suse.cz: fix modular build] Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
```diff diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index cce7df367b79..1347ba8b8377 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -191,6 +191,7 @@ static int print_unex = 1; #include <linux/mutex.h> #include <linux/io.h> #include <linux/uaccess.h> +#include <linux/async.h> ...
14070ade02cc378bc30dae383532768a94805988
Analyze and fix the following issue in the Linux kernel code: ARM: at91: fix new build errors
Problem Details: MULTI_IRQ_HANDLER and SPARSE_IRQ are now required everywhere because mach/irqs.h and mach/entry-macros.S are gone but the symbols are only selected for AT91SAM9, not for the NOMMU parts. A few files now need to include linux/io.h directly, which used to be included through other headers that have chan...
```diff diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig index 7d0c40a74d4d..c8050b14e615 100644 --- a/arch/arm/mach-at91/Kconfig +++ b/arch/arm/mach-at91/Kconfig @@ -37,6 +37,8 @@ config SOC_AT91SAM9 config SOC_AT91RM9200 bool "AT91RM9200" select CPU_ARM920T + select MULTI_IRQ_HANDLER + select...
9c6a74c5e0ca3bfac09cb1e7bf7629cc0f3aa48c
Analyze and fix the following issue in the Linux kernel code: regulator: ad5398: Fix min/max current limit boundary checking
Problem Details: It is ok to request current limit with min_uA < chip->min_uA and max_uA > chip->max_uA. We need to set min_uA = chip->min_uA if (min_uA < chip->min_uA), this ensures the equation to calcuate selator does not return negative number. Also set max_uA = chip->max_uA if (max_uA > chip->max_uA), as suggest...
```diff diff --git a/drivers/regulator/ad5398.c b/drivers/regulator/ad5398.c index 46d05f38baf8..f123f7e3b752 100644 --- a/drivers/regulator/ad5398.c +++ b/drivers/regulator/ad5398.c @@ -89,9 +89,12 @@ static int ad5398_set_current_limit(struct regulator_dev *rdev, int min_uA, int unsigned short data; int ret; - ...
c5a7e582490c423f0685e42ee5cfb7c6de81adb0
Analyze and fix the following issue in the Linux kernel code: cfg80211: fix locking regression in monitor channel tracking
Problem Details: Michal's monitor channel tracking introduce a locking problem as it locked the rdev lock inside the netdev notifier which isn't allowed as we might already hold it if we get there by removing an interface that is up. Fix this by relying only on the RTNL to protect the interface counters, the RTNL is a...
```diff diff --git a/net/wireless/core.c b/net/wireless/core.c index e13365f1fa63..eb60410ae588 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -766,7 +766,7 @@ void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev, bool has_monitors_only_old = cfg80211_has_monitors_only(rdev); bool h...
d49cae924faeffe8fb6b50493ec1655731d8dbd0
Analyze and fix the following issue in the Linux kernel code: ARM: OMAP2+: powerdomain code: Fix Wake-up power domain power status
Problem Details: The wake-up power domain is an alway-on power domain and so this power domain does not have a power state status (PM_PWSTST_xxx) register that indicates the current state. However, during the registering of the wake-up power domain the state of the domain is queried by calling pwrdm_read_pwrst(). This ...
```diff diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c index 96114901b932..2f963f702a05 100644 --- a/arch/arm/mach-omap2/powerdomain.c +++ b/arch/arm/mach-omap2/powerdomain.c @@ -526,7 +526,8 @@ int pwrdm_read_next_pwrst(struct powerdomain *pwrdm) * * Return the powerdomain @pwrd...
50bcd47c31372b09a39da7288bf80450805b2ca6
Analyze and fix the following issue in the Linux kernel code: pinctrl/nomadik: kerneldoc fix
Problem Details: Document a missing function parameter to nmk_config_pin(). Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
```diff diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c index 095bbc6450cb..e2a2dd1990c1 100644 --- a/drivers/pinctrl/pinctrl-nomadik.c +++ b/drivers/pinctrl/pinctrl-nomadik.c @@ -434,7 +434,7 @@ static int __nmk_config_pins(pin_cfg_t *cfgs, int num, bool sleep) /** * nmk_config_pi...
1e0c1ce00d83834d03f4d8d039734ca4703298df
Analyze and fix the following issue in the Linux kernel code: ARM: Orion: Fix WDT compile for Dove and MV78xx0
Problem Details: Commit 0fa1f0609a0c1fe8b2be3c0089a2cb48f7fda521 (ARM: Orion: Fix Virtual/Physical mixup with watchdog) broke the Dove & MV78xx0 build. Although these two SoC don't use the watchdog, the shared platform code still needs to build. Add the necessary defines. Cc: stable@vger.kernel.org Reported-by: Nicola...
```diff diff --git a/arch/arm/mach-dove/include/mach/bridge-regs.h b/arch/arm/mach-dove/include/mach/bridge-regs.h index 226949dc4ac0..f953bb54aa9d 100644 --- a/arch/arm/mach-dove/include/mach/bridge-regs.h +++ b/arch/arm/mach-dove/include/mach/bridge-regs.h @@ -50,5 +50,6 @@ #define POWER_MANAGEMENT (BRIDGE_VIRT_BASE...
e121aefa7d9f10eee5cf26ed47129237a05d940b
Analyze and fix the following issue in the Linux kernel code: remoteproc: fix missing CONFIG_FW_LOADER configurations
Problem Details: Remoteproc requires user space firmware loading support, so let's select FW_LOADER explicitly to avoid painful misconfigurations (which only show up in runtime). Cc: stable <stable@vger.kernel.org> Reported-by: Mark Grosen <mgrosen@ti.com> Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
```diff diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig index db4e39b9164a..f8d818abf98c 100644 --- a/drivers/remoteproc/Kconfig +++ b/drivers/remoteproc/Kconfig @@ -4,6 +4,7 @@ menu "Remoteproc drivers (EXPERIMENTAL)" config REMOTEPROC tristate depends on EXPERIMENTAL + select FW_CONFIG co...
fb31fbeb647ed1910290712c13f11f1db09e5506
Analyze and fix the following issue in the Linux kernel code: leds: heartbeat: fix bug on panic
Problem Details: With commit 49dca5aebfdeadd4bf27b6cb4c60392147dc35a4 I introduced a bug (visible if CONFIG_PROVE_RCU is enabled) which occures when a panic has happened: [ 1526.520230] =============================== [ 1526.520230] [ INFO: suspicious RCU usage. ] [ 1526.520230] 3.5.0-rc1+ #12 Not tainted [ 1526.52023...
```diff diff --git a/drivers/leds/ledtrig-heartbeat.c b/drivers/leds/ledtrig-heartbeat.c index 41dc76db4311..a019fbb70880 100644 --- a/drivers/leds/ledtrig-heartbeat.c +++ b/drivers/leds/ledtrig-heartbeat.c @@ -21,6 +21,8 @@ #include <linux/reboot.h> #include "leds.h" +static int panic_heartbeats; + struct heartbe...
d50394266b340d930a7458fa669d36e99670f200
Analyze and fix the following issue in the Linux kernel code: remoteproc/omap: fix randconfig unmet direct dependencies
Problem Details: OMAP_REMOTEPROC selects REMOTEPROC and RPMSG, both of which depend on EXPERIMENTAL, so let's have OMAP_REMOTEPROC depend on EXPERIMENTAL too, in order to avoid the below randconfig warnings. warning: (OMAP_REMOTEPROC) selects REMOTEPROC which has unmet direct dependencies (EXPERIMENTAL) warning: (OMAP...
```diff diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig index 24d880e78ec6..db4e39b9164a 100644 --- a/drivers/remoteproc/Kconfig +++ b/drivers/remoteproc/Kconfig @@ -7,6 +7,7 @@ config REMOTEPROC config OMAP_REMOTEPROC tristate "OMAP remoteproc support" + depends on EXPERIMENTAL depends on A...
c520c921eacdced7e2095ba6cbbb9921906c7b67
Analyze and fix the following issue in the Linux kernel code: ARM: imx: assert SCC gate stays enabled
Problem Details: The SCC clock is needed in internal boot mode and so must keep enabled. This same issue was fixed for the pre-common-clk code in commit 3d6e614 (mx35: Fix boot ROM hang in internal boot mode) Cc: John Ogness <jogness@linutronix.de> Cc: Hans J. Koch <hjk@hansjkoch.de> Signed-off-by: Uwe Kleine-König ...
```diff diff --git a/arch/arm/mach-imx/clk-imx35.c b/arch/arm/mach-imx/clk-imx35.c index 920a8cc42726..c6422fb10bae 100644 --- a/arch/arm/mach-imx/clk-imx35.c +++ b/arch/arm/mach-imx/clk-imx35.c @@ -201,7 +201,6 @@ int __init mx35_clocks_init() pr_err("i.MX35 clk %d: register failed with %ld\n", i, PTR_ERR(clk...
a4564ead763a9264edbec6d4e72aa273f05eb39c
Analyze and fix the following issue in the Linux kernel code: ocfs2: Fix bogus error message from ocfs2_global_read_info
Problem Details: 'status' variable in ocfs2_global_read_info() is always != 0 when leaving the function because it happens to contain number of read bytes. Thus we always log error message although everything is OK. Since all error cases properly call mlog_errno() before jumping to out_err, there's no reason to call ml...
```diff diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c index 92fcd575775a..0a86e302655f 100644 --- a/fs/ocfs2/quota_global.c +++ b/fs/ocfs2/quota_global.c @@ -399,8 +399,6 @@ int ocfs2_global_read_info(struct super_block *sb, int type) msecs_to_jiffies(oinfo->dqi_syncms)); out_err: - if (st...
a75e9ccabd925d16954739bd977c54695c9310d0
Analyze and fix the following issue in the Linux kernel code: ocfs2: use spinlock irqsave for downconvert lock.patch
Problem Details: When ocfs2dc thread holds dc_task_lock spinlock and receives soft IRQ it deadlock itself trying to get same spinlock in ocfs2_wake_downconvert_thread. Below is the stack snippet. The patch disables interrupts when acquiring dc_task_lock spinlock. ocfs2_wake_downconvert_thread ocfs2_rw_unlock ocfs2...
```diff diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index 274529cce9c6..4f7795fb5fc0 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -3932,6 +3932,8 @@ unqueue: static void ocfs2_schedule_blocked_lock(struct ocfs2_super *osb, struct ocfs2_lock_res *lockres) { + unsigned long flags; + asse...
16865b7c42fbce8a4d2b278460e387e719e289cb
Analyze and fix the following issue in the Linux kernel code: ocfs2: Misplaced parens in unlikley
Problem Details: Fix misplaced parentheses Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Joel Becker <jlbec@evilplan.org>
```diff diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index 81a4cd22f80b..274529cce9c6 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -456,7 +456,7 @@ static void ocfs2_update_lock_stats(struct ocfs2_lock_res *res, int level, stats->ls_gets++; stats->ls_total += ktime_to_ns(kt); /* overflow */...
90acb85fb48372f30e0a2f6d516d2285faea6e6c
Analyze and fix the following issue in the Linux kernel code: [media] tuner-xc2028: Fix signal strength report
Problem Details: There are several bugs at the signal strength algorithm: - It is using logical OR, instead of bit OR; - It doesn't wait up to 18 ms as it should; - the strength range is not ok. Rework on it, in order to make it work. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
```diff diff --git a/drivers/media/common/tuners/tuner-xc2028.c b/drivers/media/common/tuners/tuner-xc2028.c index 9638a69f36b2..42fdf5c57091 100644 --- a/drivers/media/common/tuners/tuner-xc2028.c +++ b/drivers/media/common/tuners/tuner-xc2028.c @@ -903,7 +903,7 @@ static int xc2028_signal(struct dvb_frontend *fe, u16...
f6ced60fb6c0ee115982157457c47e48802d6e1d
Analyze and fix the following issue in the Linux kernel code: tools lib traceevent: Cleanup realloc use
Problem Details: The if branch is completely unnecessary since 'realloc' can handle NULL pointers for the first parameter. This patch is just an adoption of Ulrich Drepper's recent patch on perf tools. Signed-off-by: Namhyung Kim <namhyung.kim@lge.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ulrich Drepper <...
```diff diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index f880db457842..5f34aa371b56 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -633,12 +633,8 @@ static void add_event(struct pevent *pevent, struct event_format *event) { int i;...
16e6b8fdfd181ac79f04ff826c42c7d8a2806a17
Analyze and fix the following issue in the Linux kernel code: tools lib traceevent: Fix some comments
Problem Details: Update and add missing argument descriptions and fix some typo on function comments. Signed-off-by: Namhyung Kim <namhyung.kim@lge.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org...
```diff diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index 99b0cd4b79d4..863016040dd6 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -4037,8 +4037,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event ...
3831a42deba59bf26618b0dd6fa1320a0a94ebd9
Analyze and fix the following issue in the Linux kernel code: tools lib traceevent: Pass string type argument to args
Problem Details: It seems PEVENT_FUNC_ARG_STRING missed passing the allocated string to the args array. Fix it. Signed-off-by: Namhyung Kim <namhyung.kim@lge.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@in...
```diff diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index 05eb6b40b16a..337ca02fb525 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -3489,6 +3489,7 @@ process_defined_func(struct trace_seq *s, void *data, int size, if (!string->st...
ca63858e9eb0ce495031c4ab5291874835cb43cf
Analyze and fix the following issue in the Linux kernel code: tools lib traceevent: Handle strdup failure cases
Problem Details: There were some places didn't check return value of the strdup and had unneeded/duplicated checks. Fix it. Signed-off-by: Namhyung Kim <namhyung.kim@lge.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Borislav ...
```diff diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index 768fab5fbcb7..cd334d52d333 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -467,8 +467,10 @@ int pevent_register_function(struct pevent *pevent, char *func, item->mod = NULL;...
deba3fb26fd1ed3235b00dccced9784a7f76ec3c
Analyze and fix the following issue in the Linux kernel code: tools lib traceevent: Introduce extend_token()
Problem Details: The __read_token() function has some duplicated code to handle internal buffer overflow. Factor them out to new extend_token(). According to the man pages of realloc/free(3), they can handle NULL pointer input so that it can be ended up to compact the code. Also handle error path correctly. Signed-o...
```diff diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index 7815b8d2eabd..768fab5fbcb7 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -781,6 +781,25 @@ int pevent_peek_char(void) return __peek_char(); } +static int extend_token(cha...
0fc45ef5202a34b5862ca246740e6ab50bc3e3e1
Analyze and fix the following issue in the Linux kernel code: tools lib traceevent: Fix printk_cmp()
Problem Details: The printk_cmp function should use printk_map instead of func_map. Also rename the variables for consistency. Signed-off-by: Namhyung Kim <namhyung.kim@lge.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Borisla...
```diff diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index ddee5a8cf135..7815b8d2eabd 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -511,12 +511,12 @@ struct printk_list { static int printk_cmp(const void *a, const void *b) { - co...
c5b35b731965d16fa8c966e288489857097e0b25
Analyze and fix the following issue in the Linux kernel code: tools lib traceevent: Fix trace_printk for long integers
Problem Details: On 32 bit systems, a conversion of the trace_printk format string "%lu" -> "%llu" is intended (similar for %lx etc.) when a trace was taken on a machine with 64 bit long integers. However, the current code computes the bogus transformation "%lu" -> "%u". Fix this. Besides that, the transformation is ...
```diff diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index da06c33dcf41..ddee5a8cf135 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -3895,14 +3895,15 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event ...
aaf05c725bed1c7a8c940d9215662c78bea05dfd
Analyze and fix the following issue in the Linux kernel code: tools lib traceevent: Fix %pM print format arg handling
Problem Details: When %pM is used, the arg value must be a 6 byte character that will be printed as a 6 byte MAC address. But the code does a break over the main code which updates the current processing arg to point to the next arg. If there are other print arguments after a %pM, they will be off by one. The next arg ...
```diff diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index 872dd35db051..da06c33dcf41 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -3858,6 +3858,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event ...
6684294d27abb24e61916871c4ecfdaccc14eb03
Analyze and fix the following issue in the Linux kernel code: ARM: imx: Fix build error due to missing irqs.h include
Problem Details: commit bc8966 (ARM: fiq: change FIQ_START to a variable) introduced the following build error for imx_v4_v5_defconfig: arch/arm/plat-mxc/avic.c:220:11: error: 'FIQ_START' undeclared (first use in this function) Include the missing header file to fix it. Signed-off-by: Fabio Estevam <fabio.estevam@fr...
```diff diff --git a/arch/arm/plat-mxc/avic.c b/arch/arm/plat-mxc/avic.c index f3d671ff7f1b..cbd55c36def3 100644 --- a/arch/arm/plat-mxc/avic.c +++ b/arch/arm/plat-mxc/avic.c @@ -26,6 +26,7 @@ #include <asm/mach/irq.h> #include <asm/exception.h> #include <mach/hardware.h> +#include <mach/irqs.h> #include "irq-com...
10684112c9d154172ac34e48a2ab68649e8f63ac
Analyze and fix the following issue in the Linux kernel code: md/raid10: fix careless build error
Problem Details: build error introduced by commit b357f04a67c2aeee8 That function doesn't get extra args until a later patch. Bother. Reported-by: Fengguang Wu <wfg@linux.intel.com> Reported-by: Simon Kirby <sim@hostway.ca> Reported-by: Tobias Klausmann <tobias.johannes.klausmann@mni.thm.de> Signed-off-by: NeilBrow...
```diff diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index acf5a828c7e1..8da6282254c3 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1394,7 +1394,7 @@ retry_write: bio_list_add(&conf->pending_bio_list, mbio); conf->pending_count++; spin_unlock_irqrestore(&conf->device_lock, flags); - ...
60d65f1f07a7d81d3eb3b91fc13fca80f2fdbb12
Analyze and fix the following issue in the Linux kernel code: eCryptfs: Fix lockdep warning in miscdev operations
Problem Details: Don't grab the daemon mutex while holding the message context mutex. Addresses this lockdep warning: ecryptfsd/2141 is trying to acquire lock: (&ecryptfs_msg_ctx_arr[i].mux){+.+.+.}, at: [<ffffffffa029c213>] ecryptfs_miscdev_read+0x143/0x470 [ecryptfs] but task is already holding lock: (&(*daem...
```diff diff --git a/fs/ecryptfs/miscdev.c b/fs/ecryptfs/miscdev.c index 3a06f4043df4..3c632ec412ec 100644 --- a/fs/ecryptfs/miscdev.c +++ b/fs/ecryptfs/miscdev.c @@ -191,31 +191,32 @@ int ecryptfs_send_miscdev(char *data, size_t data_size, struct ecryptfs_msg_ctx *msg_ctx, u8 msg_type, u16 msg_flags, struc...
dab058fd5ff834cb3b9de1d930ce731a605eb0c6
Analyze and fix the following issue in the Linux kernel code: floppy: cancel any pending fd_timeouts before adding a new one
Problem Details: In commit 070ad7e793dc ("floppy: convert to delayed work and single-thread wq") the 'fd_timeout' timer was converted to a delayed work. However, the "del_timer(&fd_timeout)" was lost in the process, and any previous pending timeouts would stay active when we then re-queued the timeout. This resulted ...
```diff diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index cce7df367b79..553f43a90953 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -671,6 +671,7 @@ static void __reschedule_timeout(int drive, const char *message) if (drive == current_reqD) drive = current_drive; + __cancel_...
85b7059169e128c57a3a8a3e588fb89cb2031da1
Analyze and fix the following issue in the Linux kernel code: KVM: MMU: fix shrinking page from the empty mmu
Problem Details: Fix: [ 3190.059226] BUG: unable to handle kernel NULL pointer dereference at (null) [ 3190.062224] IP: [<ffffffffa02aac66>] mmu_page_zap_pte+0x10/0xa7 [kvm] [ 3190.063760] PGD 104f50067 PUD 112bea067 PMD 0 [ 3190.065309] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC [ 3190.066860] CPU 1 [ ...... ...
```diff diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index be3cea4407ff..57e168e27b5b 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -3934,6 +3934,9 @@ static void kvm_mmu_remove_some_alloc_mmu_pages(struct kvm *kvm, { struct kvm_mmu_page *page; + if (list_empty(&kvm->arch.active_mmu_pages)) +...
f411930442e01f9cf1bf4df41ff7e89476575c4d
Analyze and fix the following issue in the Linux kernel code: KVM: fix fault page leak
Problem Details: fault_page is forgot to be freed Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
```diff diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index e98a5cac55c4..44ee7124b16d 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -2845,6 +2845,7 @@ void kvm_exit(void) kvm_arch_hardware_unsetup(); kvm_arch_exit(); free_cpumask_var(cpus_hardware_enabled); + __free_page(fault_page); _...
c4de7b0ffda2bb4843fd7f1052d0a2bb90bd08a5
Analyze and fix the following issue in the Linux kernel code: drm/i915: Implement w/a for sporadic read failures on waking from rc6
Problem Details: As a w/a to prevent reads sporadically returning 0, we need to wait for the GT thread to return to TC0 before proceeding to read the registers. v2: adapt for Haswell changes (Eugeni). v3: use wait_for_atomic_us for thread status polling. v3: *really* use wait_for_atomic for polling. References: htt...
```diff diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 928b6677759d..a4ea4a9fc425 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -433,6 +433,22 @@ bool i915_semaphore_is_enabled(struct drm_device *dev) return 1; } +static void __gen6_gt_w...
7beea7f3bfd803b09f7d83ff0bac1d6ceb634e84
Analyze and fix the following issue in the Linux kernel code: pinctrl/nomadik: fix hsir_a_1_pins pin list
Problem Details: move DB8500_PIN_AJ11(HSIR_RDY0_a) from hsit_a_1_pins to hsir_a_1_pins Signed-off-by: Patrice Chotard <patrice.chotard@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
```diff diff --git a/drivers/pinctrl/pinctrl-nomadik-db8500.c b/drivers/pinctrl/pinctrl-nomadik-db8500.c index 8b2022276f71..4f2a82c66300 100644 --- a/drivers/pinctrl/pinctrl-nomadik-db8500.c +++ b/drivers/pinctrl/pinctrl-nomadik-db8500.c @@ -467,9 +467,10 @@ static const unsigned mc1_a_1_pins[] = { DB8500_PIN_AH16, DB...
18071610677fc491a226fa6d5471c89a26ce670d
Analyze and fix the following issue in the Linux kernel code: pinctrl: pinctrl-imx: fix map setting problem if NO_PAD_CTL is set
Problem Details: new_map is allocated according to map_num instead of grp->npins, if a pin or some pins of a group has NO_PAD_CTL property, the map_num and the grp->npin are different definitely. When we set mapping information to the new_map[], we should skip those pins with NO_PAD_CTL from index, otherwise it is pos...
```diff diff --git a/drivers/pinctrl/pinctrl-imx.c b/drivers/pinctrl/pinctrl-imx.c index dd6d93aa5334..2bafb5d9c712 100644 --- a/drivers/pinctrl/pinctrl-imx.c +++ b/drivers/pinctrl/pinctrl-imx.c @@ -146,7 +146,7 @@ static int imx_dt_node_to_map(struct pinctrl_dev *pctldev, struct pinctrl_map *new_map; struct device...
27e8461cd5906921f6faac5bcf7a6753600062d5
Analyze and fix the following issue in the Linux kernel code: pinctrl/coh901: use clk_prepare_[en|dis]able()
Problem Details: The COH901 GPIO driver did not prepare or unprepare its clock, so let us fix it to do so. Acked-by: Pankaj Jangra <jangra.pankaj9@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
```diff diff --git a/drivers/pinctrl/pinctrl-coh901.c b/drivers/pinctrl/pinctrl-coh901.c index 55697a5d7482..cc0f00d73d15 100644 --- a/drivers/pinctrl/pinctrl-coh901.c +++ b/drivers/pinctrl/pinctrl-coh901.c @@ -770,7 +770,7 @@ static int __init u300_gpio_probe(struct platform_device *pdev) dev_err(gpio->dev, "could ...
7e1dfe5319de9ab8c73f3934da4debd0fd88c71c
Analyze and fix the following issue in the Linux kernel code: pinctrl/u300: delete pointless debug print
Problem Details: This is some leftover from earlier development, let's get rid of it. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
```diff diff --git a/drivers/pinctrl/pinctrl-u300.c b/drivers/pinctrl/pinctrl-u300.c index 13e7a3eb82e3..6cd697a079f9 100644 --- a/drivers/pinctrl/pinctrl-u300.c +++ b/drivers/pinctrl/pinctrl-u300.c @@ -1113,8 +1113,6 @@ static int __devinit u300_pmx_probe(struct platform_device *pdev) int ret; int i; - pr_err("U...
c5f3939b8fe0c358d35397982e5afdef112afc81
Analyze and fix the following issue in the Linux kernel code: regulator: core: Support fixed voltages in regulator_is_supported_voltage()
Problem Details: Currently regulator_is_supported_voltage() works by enumerating the set of voltages which can be set by the regulator but the checks we're doing to impose constraints mean that if we can't vary the voltage we'll not report any voltages as supported even though the regulator is actually set at that volt...
```diff diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index d886ee265e47..a80886626230 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1890,8 +1890,18 @@ EXPORT_SYMBOL_GPL(regulator_list_voltage); int regulator_is_supported_voltage(struct regulator *regulator, int mi...
d92d95b6bf2722ffa0fefa7651c51bf336743dd7
Analyze and fix the following issue in the Linux kernel code: regulator: Fix recursive mutex lockdep warning
Problem Details: A recursive lockdep warning occurs if you call regulator_set_optimum_mode() on a regulator with a supply because there is no nesting annotation for the rdev->mutex. To avoid this warning, get the supply's load before locking the regulator's mutex to avoid grabbing the same class of lock twice. =======...
```diff diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 09a737c868b5..8b4b3829d9e7 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2519,9 +2519,12 @@ int regulator_set_optimum_mode(struct regulator *regulator, int uA_load) { struct regulator_dev *rdev = regulator->rdev...
844e6901df45d2021d1f81b25e61159b5af2687f
Analyze and fix the following issue in the Linux kernel code: regulator: tps65217: Fix voltage boundary checking in tps65217_pmic_map_voltage
Problem Details: It is ok to request voltage with min_uV < tps->info[rid]->min_uV and max_uV > tps->info[rid]->max_uV. The equation we used in uv_to_vsel() does not allow min_uV < tps->info[rid]->min_uV, otherwise it returns negative selector. So we need to set min_uV = tps->info[rid]->min_uV if min_uV < tps->info[rid...
```diff diff --git a/drivers/regulator/tps65217-regulator.c b/drivers/regulator/tps65217-regulator.c index 0a3df5b7c904..f7d0495b003e 100644 --- a/drivers/regulator/tps65217-regulator.c +++ b/drivers/regulator/tps65217-regulator.c @@ -206,10 +206,10 @@ static int tps65217_pmic_map_voltage(struct regulator_dev *dev, i...
a90037560588e51b3e98b49537799137cbfda17d
Analyze and fix the following issue in the Linux kernel code: isci: fix COMSAS negation timout workaround for WD SAS drives
Problem Details: The following patch is a fix for the WD workaround COMSAS negation timeout change. This patch disables the OOB SM when the OOB is placed in reset, which allows the updated COMSAS negation timeout value to take effect. Cc: Dan Thompson <daniel.j.thompson@intel.com> Reported-by: Dan Thompson <daniel.j.t...
```diff diff --git a/drivers/scsi/isci/phy.c b/drivers/scsi/isci/phy.c index 18f43d4c30ba..ebb8f530f708 100644 --- a/drivers/scsi/isci/phy.c +++ b/drivers/scsi/isci/phy.c @@ -1205,6 +1205,7 @@ static void scu_link_layer_start_oob(struct isci_phy *iphy) /** Reset OOB sequence - start */ val = readl(&ll->phy_configur...
6d70a74ffd616073a68ae0974d98819bfa8e6da6
Analyze and fix the following issue in the Linux kernel code: isci: fix isci_pci_probe() generates warning on efi failure path
Problem Details: The oem parameter image embedded in the efi variable is at an offset from the start of the variable. However, in the failure path we try to free the 'orom' pointer which is only valid when the paramaters are being read from the legacy option-rom space. Since failure to load the oem parameters is unli...
```diff diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c index 47e28b555029..8870bd3b6383 100644 --- a/drivers/scsi/isci/init.c +++ b/drivers/scsi/isci/init.c @@ -641,7 +641,6 @@ static int __devinit isci_pci_probe(struct pci_dev *pdev, const struct pci_devic orom->hdr.version)) { dev_warn(&p...
32fee7afe763344ef53bbd4e737aa6168a9308aa
Analyze and fix the following issue in the Linux kernel code: ASoC: dapm: Fix dapm_set_path_status() connect
Problem Details: dapm_set_path_status() sets connect incorrectly in the case max > 1 with invert. In that case, the raw disconnect value should be max, which corresponds to the userspace value 0. This use case currently does not appear upstream, but it could break SOC_DAPM_SINGLE() or SOC_DAPM_SINGLE_TLV() elsewhere o...
```diff diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 89eae93445cf..5be4f9a2edb8 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -321,11 +321,10 @@ static void dapm_set_path_status(struct snd_soc_dapm_widget *w, val = soc_widget_read(w, reg); val = (val >> shift) & mask; + if (...
863b13271f1608ab3af6f7a371047d9a66693e38
Analyze and fix the following issue in the Linux kernel code: clk: fix parent validation in __clk_set_parent()
Problem Details: The below commit introduced a bug in __clk_set_parent() which could cause it to *skip* the parent validation which makes sure the parent passed to the api is a valid one. commit 7975059db572eb47f0fb272a62afeae272a4b209 Author: Rajendra Nayak <rnayak@ti.com> Date: Wed Jun 6 14:41:31 2012 ...
```diff diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index dcbe05616090..9a1eb0cfa95f 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -1067,26 +1067,24 @@ static int __clk_set_parent(struct clk *clk, struct clk *parent) old_parent = clk->parent; - /* find index of new parent clock using cached par...
21b26c08535c992802402c7ba2d789ca9e1a5707
Analyze and fix the following issue in the Linux kernel code: KVM: s390: Fix sigp sense handling.
Problem Details: If sigp sense doesn't have any status bits to report, it should set cc 0 and leave the register as-is. Since we know about the external call pending bit, we should report it if it is set as well. Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@de.i...
```diff diff --git a/arch/s390/include/asm/sigp.h b/arch/s390/include/asm/sigp.h index 7306270b5b84..5a87d16d3e7c 100644 --- a/arch/s390/include/asm/sigp.h +++ b/arch/s390/include/asm/sigp.h @@ -24,6 +24,7 @@ #define SIGP_STATUS_CHECK_STOP 0x00000010UL #define SIGP_STATUS_STOPPED 0x00000040UL +#define SIGP_STATUS...
0744426e28490357855aafd2ca76c819231851c5
Analyze and fix the following issue in the Linux kernel code: KVM: s390: fix sigp set prefix status stored cases
Problem Details: If an invalid parameter is passed or the addressed cpu is in an incorrect state sigp set prefix will store a status. This status must only have bits set as defined by the architecture. The current kvm implementation missed to clear bits and also did not set the intended status bit ("and" instead of "or...
```diff diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c index caccc0ee9cee..ca544d53557e 100644 --- a/arch/s390/kvm/sigp.c +++ b/arch/s390/kvm/sigp.c @@ -207,6 +207,7 @@ static int __sigp_set_prefix(struct kvm_vcpu *vcpu, u16 cpu_addr, u32 address, address = address & 0x7fffe000u; if (copy_from_guest_absol...
7ba26c482fcb42b01785ee1f39871fcc636ab3fe
Analyze and fix the following issue in the Linux kernel code: KVM: s390: fix sigp sense running condition code handling
Problem Details: Only if the sensed cpu is not running a status is stored, which is reflected by condition code 1. If the cpu is running, condition code 0 should be returned. Just the opposite of what the code is doing. Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de...
```diff diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c index fda1d64f15ee..caccc0ee9cee 100644 --- a/arch/s390/kvm/sigp.c +++ b/arch/s390/kvm/sigp.c @@ -268,12 +268,12 @@ static int __sigp_sense_running(struct kvm_vcpu *vcpu, u16 cpu_addr, if (atomic_read(fi->local_int[cpu_addr]->cpuflags) & CPUSTAT...
f9808b7fd422b965cea52e05ba470e0a473c53d3
Analyze and fix the following issue in the Linux kernel code: apic: fix kvm build on UP without IOAPIC
Problem Details: On UP i386, when APIC is disabled # CONFIG_X86_UP_APIC is not set # CONFIG_PCI_IOAPIC is not set code looking at apicdrivers never has any effect but it still gets compiled in. In particular, this causes build failures with kvm, but it generally bloats the kernel unnecessarily. Fix by defining both _...
```diff diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h index eaff4790ed96..aa5b2eec3602 100644 --- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -417,7 +417,12 @@ extern struct apic *apic; __aligned(sizeof(struct apic *)) \ __section(.apicdrivers) = { &sym1, &sym2 } ...
b876c1a0bcfe68a5eaf03f325cb2a09822bf11f2
Analyze and fix the following issue in the Linux kernel code: MIPS: Netlogic: Fix TLB size of boot CPU.
Problem Details: Starting other threads in the core will change the number of TLB entries of a CPU. Re-calculate current_cpu_data.tlbsize on the boot cpu after enabling and waking up other threads. The secondary CPUs do not need this logic because the threads are enabled on the secondary cores at wakeup and before cp...
```diff diff --git a/arch/mips/netlogic/xlp/setup.c b/arch/mips/netlogic/xlp/setup.c index acb677a1227c..b3df7c2aad1e 100644 --- a/arch/mips/netlogic/xlp/setup.c +++ b/arch/mips/netlogic/xlp/setup.c @@ -82,8 +82,10 @@ void __init prom_free_prom_memory(void) void xlp_mmu_init(void) { + /* enable extended TLB and Lar...
249e2a38fbd28ffaadba112290742ada16946900
Analyze and fix the following issue in the Linux kernel code: MIPS: Netlogic: MSI enable fix for XLS
Problem Details: MSI interrupts do not work on XLS after commit a776c49 ( "PCI: msi: Disable msi interrupts when we initialize a pci device" ) because the change disables MSI interrupts on the XLS PCIe bridges during the PCI enumeration. Fix this by enabling MSI interrupts on the bridge in the arch_setup_msi_irq() fun...
```diff diff --git a/arch/mips/pci/pci-xlr.c b/arch/mips/pci/pci-xlr.c index 50ff4dc28b4f..172af1cd5867 100644 --- a/arch/mips/pci/pci-xlr.c +++ b/arch/mips/pci/pci-xlr.c @@ -41,6 +41,7 @@ #include <linux/irq.h> #include <linux/irqdesc.h> #include <linux/console.h> +#include <linux/pci_regs.h> #include <asm/io.h>...
ea8e867d9b505b1c852f9932ba75504bc4eebeaa
Analyze and fix the following issue in the Linux kernel code: MIPS: Netlogic: Fix PCIX irq on XLR chips
Problem Details: The correct irq is PIC_PCIX_IRQ Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/3750/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
```diff diff --git a/arch/mips/pci/pci-xlr.c b/arch/mips/pci/pci-xlr.c index 1644805a6730..50ff4dc28b4f 100644 --- a/arch/mips/pci/pci-xlr.c +++ b/arch/mips/pci/pci-xlr.c @@ -327,7 +327,7 @@ static int __init pcibios_init(void) } } else { /* XLR PCI controller ACK */ - irq_set_handler_data(PIC_PCIE_XLSB0_LINK3...
7b86cef34afceeecf57d4d07f3cfab06f8b60b13
Analyze and fix the following issue in the Linux kernel code: gpio/omap: fix invalid context restore of gpio bank-0
Problem Details: Currently the gpio _runtime_resume/suspend functions are calling the get_context_loss_count() platform function if the function is populated for a gpio bank. This function is used to determine if the gpio bank logic state needs to be restored due to a power transition. This function will be populated f...
```diff diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c index ff213e70fa5a..4fbc208c32cf 100644 --- a/drivers/gpio/gpio-omap.c +++ b/drivers/gpio/gpio-omap.c @@ -1091,7 +1091,6 @@ static int __devinit omap_gpio_probe(struct platform_device *pdev) bank->is_mpuio = pdata->is_mpuio; bank->non_wakeup_g...
8d2c794108aed16602de1fcc37e485e9243ab5c0
Analyze and fix the following issue in the Linux kernel code: PM / Documentation: fix typos in power management description
Problem Details: Just two missing characters. Signed-off-by: Oskar Schirmer <oskar@scara.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
```diff diff --git a/Documentation/power/devices.txt b/Documentation/power/devices.txt index 872815cd41d3..504dfe4d52eb 100644 --- a/Documentation/power/devices.txt +++ b/Documentation/power/devices.txt @@ -583,9 +583,10 @@ for the given device during all power transitions, instead of the respective subsystem-level ca...
bd408b33363035275403cfaadf2683d8c8e22dd7
Analyze and fix the following issue in the Linux kernel code: iwlwifi: remove unneeded NULL check
Problem Details: There's no need to check trans for non-null here as it has already been checked in the caller. This fixes an smatch warning that we check after having dereferenced it. Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
```diff diff --git a/drivers/net/wireless/iwlwifi/pcie/rx.c b/drivers/net/wireless/iwlwifi/pcie/rx.c index be143eb4aa4f..39a6ca1f009c 100644 --- a/drivers/net/wireless/iwlwifi/pcie/rx.c +++ b/drivers/net/wireless/iwlwifi/pcie/rx.c @@ -879,9 +879,6 @@ static irqreturn_t iwl_isr(int irq, void *data) lockdep_assert_he...
18068bdd5f59229623b2fa518a6389e346642b0d
Analyze and fix the following issue in the Linux kernel code: dm: verity fix documentation
Problem Details: Veritysetup is now part of cryptsetup package. Remove on-disk header description (which is not parsed in kernel) and point users to cryptsetup where it the format is documented. Mention units for block size paramaters. Fix target line specification and dmsetup parameters. Signed-off-by: Milan Broz <mb...
```diff diff --git a/Documentation/device-mapper/verity.txt b/Documentation/device-mapper/verity.txt index 32e48797a14f..9884681535ee 100644 --- a/Documentation/device-mapper/verity.txt +++ b/Documentation/device-mapper/verity.txt @@ -7,39 +7,39 @@ This target is read-only. Construction Parameters =================...
b0239faaf87c38bb419c9264bf20817438ddc3a9
Analyze and fix the following issue in the Linux kernel code: dm persistent data: fix allocation failure in space map checker init
Problem Details: If CONFIG_DM_DEBUG_SPACE_MAPS is enabled and memory is fragmented and a sufficiently-large metadata device is used in a thin pool then the space map checker will fail to allocate the memory it requires. Switch from kmalloc to vmalloc to allow larger virtually contiguous allocations for the space map c...
```diff diff --git a/drivers/md/persistent-data/dm-space-map-checker.c b/drivers/md/persistent-data/dm-space-map-checker.c index 6d7c8329250f..fc90c11620ad 100644 --- a/drivers/md/persistent-data/dm-space-map-checker.c +++ b/drivers/md/persistent-data/dm-space-map-checker.c @@ -8,6 +8,7 @@ #include <linux/device-map...
62662303e7f590fdfbb0070ab820a0ad4267c119
Analyze and fix the following issue in the Linux kernel code: dm persistent data: handle space map checker creation failure
Problem Details: If CONFIG_DM_DEBUG_SPACE_MAPS is enabled and dm_sm_checker_create() fails, dm_tm_create_internal() would still return success even though it cleaned up all resources it was supposed to have created. This will lead to a kernel crash: general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC ... RIP: 001...
```diff diff --git a/drivers/md/persistent-data/dm-space-map-checker.c b/drivers/md/persistent-data/dm-space-map-checker.c index 50ed53bf4aa2..6d7c8329250f 100644 --- a/drivers/md/persistent-data/dm-space-map-checker.c +++ b/drivers/md/persistent-data/dm-space-map-checker.c @@ -343,25 +343,25 @@ struct dm_space_map *dm...
25d7cd6faa7ae6ed2565617c3ee2500ccb8a9f7f
Analyze and fix the following issue in the Linux kernel code: dm persistent data: fix shadow_info_leak on dm_tm_destroy
Problem Details: Cleanup the shadow table before destroying the transaction manager. Reference: leak was identified with kmemleak when running test_discard_random_sectors in the thinp-test-suite. Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Alasdair G Kergon <agk@redhat.c...
```diff diff --git a/drivers/md/persistent-data/dm-transaction-manager.c b/drivers/md/persistent-data/dm-transaction-manager.c index 400fe144c0cd..02bf78e9d10d 100644 --- a/drivers/md/persistent-data/dm-transaction-manager.c +++ b/drivers/md/persistent-data/dm-transaction-manager.c @@ -138,6 +138,9 @@ EXPORT_SYMBOL_GPL...
1b083ea4c072e49a6b0d4a1a6d5d9a6e4b3606b1
Analyze and fix the following issue in the Linux kernel code: mac80211_hwsim: fix NUM_BANDS usage
Problem Details: Due to the recent change of NUM_BANDS from 2 to 3 hwsim broke. Fix the code by using the right constant but don't support bands other than 2.4 and 5 GHz. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
```diff diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 5bddf53ece1d..c68728c6c6fa 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -292,7 +292,7 @@ struct mac80211_hwsim_data { struct list_head list; struct ieee80211_...
75331a597cf4cde51d9b0bb22cbd03b9837ef9e4
Analyze and fix the following issue in the Linux kernel code: security: Fix nommu build.
Problem Details: The security + nommu configuration presently blows up with an undefined reference to BDI_CAP_EXEC_MAP: security/security.c: In function 'mmap_prot': security/security.c:687:36: error: dereferencing pointer to incomplete type security/security.c:688:16: error: 'BDI_CAP_EXEC_MAP' undeclared (first use i...
```diff diff --git a/security/security.c b/security/security.c index 3efc9b12aef4..860aeb349cb3 100644 --- a/security/security.c +++ b/security/security.c @@ -23,6 +23,7 @@ #include <linux/mman.h> #include <linux/mount.h> #include <linux/personality.h> +#include <linux/backing-dev.h> #include <net/flow.h> #defin...
9f846a16d213523fbe6daea17e20df6b8ac5a1e5
Analyze and fix the following issue in the Linux kernel code: drm/i915: kick any firmware framebuffers before claiming the gtt
Problem Details: Especially vesafb likes to map everything as uc- (yikes), and if that mapping hangs around still while we try to map the gtt as wc the kernel will downgrade our request to uc-, resulting in abyssal performance. Unfortunately we can't do this as early as readon does (i.e. as the first thing we do when ...
```diff diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index f94792626b94..36822b924eb1 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1401,6 +1401,27 @@ i915_mtrr_setup(struct drm_i915_private *dev_priv, unsigned long base, } } +static void i...
1ef5325b238676c7a16bcd374250b07e77682736
Analyze and fix the following issue in the Linux kernel code: drm/radeon: fix rare segfault
Problem Details: In gem idle/busy ioctl the radeon object was derefenced after drm_gem_object_unreference_unlocked which in case the object have been destroyed lead to use of a possibly free pointer with possibly wrong data. Signed-off-by: Jerome Glisse <jglisse@redhat.com> Reviewed-by: Alex Deucher <alexander.deucher...
```diff diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c index f28bd4b7ef98..21ec9f5653ce 100644 --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -292,6 +292,7 @@ int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data, int radeon_gem_bus...
b357f04a67c2aeee828b240863cd3f21d6cb3179
Analyze and fix the following issue in the Linux kernel code: md: fix up plugging (again).
Problem Details: The value returned by "mddev_check_plug" is only valid until the next 'schedule' as that will unplug things. This could happen at any call to mempool_alloc. So just calling mddev_check_plug at the start doesn't really make sense. So call it just before, or just after, queuing things for the thread. A...
```diff diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 34b4665cb0b6..8c2754f835ef 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -883,7 +883,6 @@ static void make_request(struct mddev *mddev, struct bio * bio) const unsigned long do_sync = (bio->bi_rw & REQ_SYNC); const unsigned long do_flu...
32644afd8975d19174bcb9ba34687c32dd810a09
Analyze and fix the following issue in the Linux kernel code: md/raid1: fix bug in read_balance introduced by hot-replace
Problem Details: When we added hot_replace we doubled the number of devices that could be in a RAID1 array. So we doubled how far read_balance would search. Unfortunately we didn't double the point at which it looped back to the beginning - so it effectively loops over all non-replacement disks twice. This doesn't ca...
```diff diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 39b2a8aa3b23..34b4665cb0b6 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -517,8 +517,8 @@ static int read_balance(struct r1conf *conf, struct r1bio *r1_bio, int *max_sect int bad_sectors; int disk = start_disk + i; - if (disk >= c...
fab363b5ff502d1b39ddcfec04271f5858d9f26e
Analyze and fix the following issue in the Linux kernel code: raid5: delayed stripe fix
Problem Details: There isn't locking setting STRIPE_DELAYED and STRIPE_PREREAD_ACTIVE bits, but the two bits have relationship. A delayed stripe can be moved to hold list only when preread active stripe count is below IO_THRESHOLD. If a stripe has both the bits set, such stripe will be in delayed list and preread count...
```diff diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 51169ecd7787..7245a9df35a9 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -196,12 +196,14 @@ static void __release_stripe(struct r5conf *conf, struct stripe_head *sh) BUG_ON(!list_empty(&sh->lru)); BUG_ON(atomic_read(&conf->active_str...
2e8ac30312973dd20e6807365349ecb1c7e0ea45
Analyze and fix the following issue in the Linux kernel code: md/raid456: When read error cannot be recovered, record bad block
Problem Details: We may not be able to fix a bad block if: - the array is degraded - the over-write fails. In these cases we currently eject the device, but we should record a bad block if possible. Signed-off-by: majianpeng <majianpeng@gmail.com> Signed-off-by: NeilBrown <neilb@suse.de>
```diff diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index a5135e595866..51169ecd7787 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -1743,6 +1743,7 @@ static void raid5_end_read_request(struct bio * bi, int error) } else { const char *bdn = bdevname(rdev->bdev, b); int retry = 0; + int se...
055d3747dbf00ce85c6872ecca4d466638e80c22
Analyze and fix the following issue in the Linux kernel code: md/raid10: fix failure when trying to repair a read error.
Problem Details: commit 58c54fcca3bac5bf9290cfed31c76e4c4bfbabaf md/raid10: handle further errors during fix_read_error better. in 3.1 added "r10_sync_page_io" which takes an IO size in sectors. But we were passing the IO size in bytes!!! This resulting in bio_add_page failing, and empty request being sent down, ...
```diff diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index bcf6ea8acc9f..ae73e29298b2 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -2310,7 +2310,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10 if (r10_sync_page_io(rdev, r10_bio->devs[sl].ad...
a217c46c2ed65d4cde5c7c72290deebc2303116e
Analyze and fix the following issue in the Linux kernel code: ARM: dts: imx23: Fix the gpmi/gpmi-nand DT name
Problem Details: Replace "gpmi" with "gpmi-nand" to get the GPMI interface probing with DT instead of failing to get clock. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Detlev Zundel <dzu@denx.de> CC: Dong Aisheng <b29396@freescale.com> CC: Fabio Estevam <fabio.estevam@freescale.com> Cc: Linux ARM kernel <linux-arm-...
```diff diff --git a/arch/arm/boot/dts/imx23.dtsi b/arch/arm/boot/dts/imx23.dtsi index 8c5f9994f3fc..0af43c007287 100644 --- a/arch/arm/boot/dts/imx23.dtsi +++ b/arch/arm/boot/dts/imx23.dtsi @@ -62,7 +62,7 @@ status = "disabled"; }; - gpmi@8000c000 { + gpmi-nand@8000c000 { reg = <0x8000c000 2000>; ...
f0a875fd3f7028af904b3a60347693812abd2aad
Analyze and fix the following issue in the Linux kernel code: powerpc: Fix kernel-doc warning
Problem Details: Warning(arch/powerpc/kernel/pci_of_scan.c:210): Excess function parameter 'node' description in 'of_scan_pci_bridge' Warning(arch/powerpc/kernel/vio.c:636): No description found for parameter 'desired' Warning(arch/powerpc/kernel/vio.c:636): Excess function parameter 'new_desired' description in 'vio_c...
```diff diff --git a/arch/powerpc/kernel/pci_of_scan.c b/arch/powerpc/kernel/pci_of_scan.c index 89dde171a6fa..d7dd42bd1452 100644 --- a/arch/powerpc/kernel/pci_of_scan.c +++ b/arch/powerpc/kernel/pci_of_scan.c @@ -198,7 +198,6 @@ EXPORT_SYMBOL(of_create_pci_dev); /** * of_scan_pci_bridge - Set up a PCI bridge and...
a5cb82da786f610f7e84a0a8bcf9e0218c363040
Analyze and fix the following issue in the Linux kernel code: powerpc: Fix assmption of end_of_DRAM() returns end address
Problem Details: memblock_end_of_DRAM() returns end_address + 1, not end address. While some code assumes that it returns end address. Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
```diff diff --git a/arch/powerpc/platforms/44x/currituck.c b/arch/powerpc/platforms/44x/currituck.c index 583e67fee37e..9f6c33d63a42 100644 --- a/arch/powerpc/platforms/44x/currituck.c +++ b/arch/powerpc/platforms/44x/currituck.c @@ -160,7 +160,7 @@ static void __init ppc47x_setup_arch(void) /* No need to check the ...
5b958a7eef9e116c7be516924f27e5c62a9c6914
Analyze and fix the following issue in the Linux kernel code: powerpc/numa: Fix OF node refcounting bug
Problem Details: The form affinity for NUMA is set to 1 if the firmware supports OPAL. Otherwise, we have to retrieve that from OF node "/chosen". For the latter case, OF node "/chosen" reference count was never decreased. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <ben...
```diff diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index 6e8f677f5646..7c28589d45bd 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -340,6 +340,8 @@ static int __init find_min_common_depth(void) dbg("Using form 1 affinity\n"); form1_affinity = 1; } + + of_node_put(c...
5f066c632fcfd2a33f2eb7077c15c630e9f5ea5b
Analyze and fix the following issue in the Linux kernel code: md/raid5: fix refcount problem when blocked_rdev is set.
Problem Details: commit 43220aa0f22cd3ce5b30246d50ccd696d119edea md/raid5: fix a hang on device failure. fixed a hang, but introduced a refcounting in-balance so that if the presence of bad-blocks ever caused an rdev to be 'blocked' we would increment the refcount on the rdev and never decrement it. So added the ...
```diff diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index befadb41a11f..62b6b3a83abf 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3588,8 +3588,18 @@ static void handle_stripe(struct stripe_head *sh) finish: /* wait for this device to become unblocked */ - if (conf->mddev->external && unlik...
1850753d2e6d9ca7856581ca5d3cf09521e6a5d7
Analyze and fix the following issue in the Linux kernel code: md/raid5: In ops_run_io, inc nr_pending before calling md_wait_for_blocked_rdev
Problem Details: In ops_run_io(), the call to md_wait_for_blocked_rdev will decrement nr_pending so we lose the reference we hold on the rdev. So atomic_inc it first to maintain the reference. This bug was introduced by commit 73e92e51b7969ef5477d md/raid5. Don't write to known bad block on doubtful devices. wh...
```diff diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 9567a9c83a1f..befadb41a11f 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -606,6 +606,12 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s) * a chance*/ md_check_recovery(conf->mddev); } + /*...
6c0544e255dd6582a9899572e120fb55d9f672a4
Analyze and fix the following issue in the Linux kernel code: md/raid5: Do not add data_offset before call to is_badblock
Problem Details: In chunk_aligned_read() we are adding data_offset before calling is_badblock. But is_badblock also adds data_offset, so that is bad. So move the addition of data_offset to after the call to is_badblock. This bug was introduced by commit 31c176ecdf3563140e639 md/raid5: avoid reading from known b...
```diff diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 95fcbbf3d6c9..9567a9c83a1f 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3881,8 +3881,6 @@ static int chunk_aligned_read(struct mddev *mddev, struct bio * raid_bio) raid_bio->bi_next = (void*)rdev; align_bi->bi_bdev = rdev->bdev; ...
fc448a18ae6219af9a73257b1fbcd009efab4a81
Analyze and fix the following issue in the Linux kernel code: md/raid10: Don't try to recovery unmatched (and unused) chunks.
Problem Details: If a RAID10 has an odd number of chunks - as might happen when there are an odd number of devices - the last chunk has no pair and so is not mirrored. We don't store data there, but when recovering the last device in an array we retry to recover that last chunk from a non-existent location. This resu...
```diff diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 99ae6068e456..bcf6ea8acc9f 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -2890,6 +2890,12 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, /* want to reconstruct this device */ rb2 = r10_bio; sect = ...
bb1dccfc63f7a007c6347c75ba597d866749d9d2
Analyze and fix the following issue in the Linux kernel code: ARM: tegra: Fix PWM clock programming
Problem Details: PWM clock source registers in Tegra 2 have different clock source selection bit fields than other registers. PWM clock source bits in CLK_SOURCE_PWM_0 register are located at bit field bit[30:28] while others are at bit field bit[31:30] in their respective clock source register. This patch updates th...
```diff diff --git a/arch/arm/mach-tegra/tegra2_clocks.c b/arch/arm/mach-tegra/tegra2_clocks.c index b79cb93ffd54..2016ba095816 100644 --- a/arch/arm/mach-tegra/tegra2_clocks.c +++ b/arch/arm/mach-tegra/tegra2_clocks.c @@ -69,6 +69,8 @@ #define PERIPH_CLK_SOURCE_MASK (3<<30) #define PERIPH_CLK_SOURCE_SHIFT 30 +#d...
4b57ad939263935e4e3aec4d74a11dd02a3421e4
Analyze and fix the following issue in the Linux kernel code: mm: Fix signal SIGFPE in slabinfo.c.
Problem Details: In function slab_stats(), if total_free is equal zero, it will error. So fix it. Acked-by: Christoph Lameter <cl@linux.com> Signed-off-by: majianpeng <majianpeng@gmail.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
```diff diff --git a/tools/vm/slabinfo.c b/tools/vm/slabinfo.c index 164cbcf61106..808d5a9d5dcf 100644 --- a/tools/vm/slabinfo.c +++ b/tools/vm/slabinfo.c @@ -437,34 +437,34 @@ static void slab_stats(struct slabinfo *s) printf("Fastpath %8lu %8lu %3lu %3lu\n", s->alloc_fastpath, s->free_fastpath, s-...
0d9f78a92ef5e97d9fe51d9215ebe22f6f0d289d
Analyze and fix the following issue in the Linux kernel code: xhci: Fix hang on back-to-back Set TR Deq Ptr commands.
Problem Details: The Microsoft LifeChat 3000 USB headset was causing a very reproducible hang whenever it was plugged in. At first, I thought the host controller was producing bad transfer events, because the log was filled with errors like: xhci_hcd 0000:00:14.0: ERROR Transfer event TRB DMA ptr not part of current ...
```diff diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 23b4aefd1036..8275645889da 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -885,6 +885,17 @@ static void update_ring_for_set_deq_completion(struct xhci_hcd *xhci, num_trbs_free_temp = ep_ring->num_tr...
bdb7d303b33c1648514c9f9461d7513a4c05ce48
Analyze and fix the following issue in the Linux kernel code: Btrfs: fix tree log remove space corner case
Problem Details: The tree log stuff can have allocated space that we end up having split across a bitmap and a real extent. The free space code does not deal with this, it assumes that if it finds an extent or bitmap entry that the entire range must fall within the entry it finds. This isn't necessarily the case, so ...
```diff diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 19a0d85b451c..a70c54e2e1be 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -1542,29 +1542,26 @@ again: end = bitmap_info->offset + (u64)(BITS_PER_BITMAP * ctl->unit) - 1; /* - * XXX - this can go aw...
6bf02314d9a5c29f6ec30285b9ad5361c2d4c85a
Analyze and fix the following issue in the Linux kernel code: Btrfs: fix wrong check during log recovery
Problem Details: When we're evicting an inode during log recovery, we need to ensure that the inode is not in orphan state any more, which means inode's run_time flags has _no_ BTRFS_INODE_HAS_ORPHAN_ITEM. Thus, the BUG_ON was triggered because of a wrong check for the flags. Reviewed-by: David Sterba <dsterba@suse.c...
```diff diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 6971fb5fc859..9f07bd121f66 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -3754,7 +3754,7 @@ void btrfs_evict_inode(struct inode *inode) btrfs_wait_ordered_range(inode, 0, (u64)-1); if (root->fs_info->log_root_recovering) { - BUG_ON(!test_bi...
d3a94048c912e18e99a091d5ea2d0a1178152d6f
Analyze and fix the following issue in the Linux kernel code: Btrfs: use _IOR for BTRFS_IOC_SUBVOL_GETFLAGS
Problem Details: We used the wrong ioctl macro for the getflags ioctl before. As we don't have the set/getflags ioctls in the user space ioctl.h at the moment, it's safe to fix it now. Reviewed-by: David Sterba <dsterba@suse.cz> Signed-off-by: Alexander Block <ablock84@googlemail.com>
```diff diff --git a/fs/btrfs/ioctl.h b/fs/btrfs/ioctl.h index 497c530724cf..e440aa653c30 100644 --- a/fs/btrfs/ioctl.h +++ b/fs/btrfs/ioctl.h @@ -339,7 +339,7 @@ struct btrfs_ioctl_get_dev_stats { #define BTRFS_IOC_WAIT_SYNC _IOW(BTRFS_IOCTL_MAGIC, 22, __u64) #define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC,...
68310a5e42f93c2242ec1836c3b18d531e0065e2
Analyze and fix the following issue in the Linux kernel code: Btrfs: restore restriper state on all mounts
Problem Details: Fix a bug that triggered asserts in btrfs_balance() in both normal and resume modes -- restriper state was not properly restored on read-only mounts. This factors out resuming code from btrfs_restore_balance(), which is now also called earlier in the mount sequence to avoid the problem of some early w...
```diff diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 7d7bc8eace86..3a7961ba161e 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -2354,12 +2354,17 @@ retry_root_backup: BTRFS_CSUM_TREE_OBJECTID, csum_root); if (ret) goto recovery_tree_root; - csum_root->track_dirty = 1; fs_inf...
215c29d3d0e925189ade522d1ea6052a320d7692
Analyze and fix the following issue in the Linux kernel code: ARM Samsung: Move s3c pwm driver to pwm framework
Problem Details: Move the driver to drivers/pwm/ and convert it to use the framework. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> [eric@eukrea.com: fix pwmchip_add return code test] Signed-off-by: Eric Bénard <eric@eukrea.com> Signed-o...
```diff diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile index 860b2db4db15..96854721319c 100644 --- a/arch/arm/plat-samsung/Makefile +++ b/arch/arm/plat-samsung/Makefile @@ -63,7 +63,3 @@ obj-$(CONFIG_S5P_SLEEP) += s5p-sleep.o # PD support obj-$(CONFIG_SAMSUNG_PD) += pd.o - -# PWM supp...
29693248edf10830db2ef82b36806e378ff75c67
Analyze and fix the following issue in the Linux kernel code: ARM i.MX: Move i.MX pwm driver to pwm framework
Problem Details: Move the driver to drivers/pwm/ and convert it to use the framework. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> [eric@eukrea.com: set chip.dev to prevent probe failure] [eric@eukrea.com: fix pwmchip_add return code test] Signed-off-by: Eric Bénard <eric@eukrea.com> Signed-off-by: Thierry Red...
```diff diff --git a/arch/arm/plat-mxc/Kconfig b/arch/arm/plat-mxc/Kconfig index c722f9ce6918..baf9064c0844 100644 --- a/arch/arm/plat-mxc/Kconfig +++ b/arch/arm/plat-mxc/Kconfig @@ -47,12 +47,6 @@ config MXC_TZIC config MXC_AVIC bool -config MXC_PWM - tristate "Enable PWM driver" - select HAVE_PWM - help - Enab...
c3473e830074ef04f974f2829690942dd8580619
Analyze and fix the following issue in the Linux kernel code: Btrfs: fix dio write vs buffered read race
Problem Details: Miao pointed out there's a problem with mixing dio writes and buffered reads. If the read happens between us invalidating the page range and actually locking the extent we can bring in pages into page cache. Then once the write finishes if somebody tries to read again it will just find uptodate pages...
```diff diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 876cddd6b2f0..248d20265249 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1334,7 +1334,6 @@ static ssize_t __btrfs_direct_write(struct kiocb *iocb, loff_t *ppos, size_t count, size_t ocount) { struct file *file = iocb->ki_filp; - struct in...
597a60fadedf9a40fdff8735054bf772b3dafd57
Analyze and fix the following issue in the Linux kernel code: Btrfs: don't count I/O statistic read errors for missing devices
Problem Details: It is normal behaviour of the low level btrfs function btrfs_map_bio() to complete a bio with -EIO if the device is missing, instead of just preventing the bio creation in an earlier step. This used to cause I/O statistic read error increments and annoying printk_ratelimited messages. This commit fixes...
```diff diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 8a3d2594b807..3f292cf693a7 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -4061,16 +4061,18 @@ static void btrfs_end_bio(struct bio *bio, int err) BUG_ON(stripe_index >= bbio->num_stripes); dev = bbio->stripes[stripe_index].dev; -...
4fa3b6cb1bc8c14b81b4c8ffdfd3f2500a7e9367
Analyze and fix the following issue in the Linux kernel code: rcu: Fix qlen_lazy breakage
Problem Details: Commit d8169d4c (Make __kfree_rcu() less dependent on compiler choices) created a macro out of an inline function in order to avoid build breakage for certain combinations of gcc flags. Unfortunately, it also converted a kfree_call_rcu() to a call_rcu(), which made the rcu_data structure's ->qlen_lazy...
```diff diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 9cac722b169c..46d45e0f9134 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -935,7 +935,7 @@ void __kfree_rcu(struct rcu_head *head, unsigned long offset) #define __kfree_rcu(head, offset) \ do { \ BUILD_BUG_ON(!...