- 30 Jul, 2015 40 commits
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Takashi Iwai authored
commit 1c37c223 upstream. The headphone and mic jacks on Thinkpad T440 are assigned to pins NID 0x16 and 0x19, respectively. These need to be set up manually by a fixup. Reported-and-tested-by:
Joschi Brauchle <joschi.brauchle@tum.de> Signed-off-by:
Takashi Iwai <tiwai@suse.de> Signed-off-by:
Jiri Slaby <jslaby@suse.cz>
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Paolo Bonzini authored
commit ce40cd3f upstream. Malicious (or egregiously buggy) userspace can trigger it, but it should never happen in normal operation. Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com> Acked-by:
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Fabio Estevam authored
commit b136faff upstream. 'channels' is allocated via kmemdup and it is never freed in the subsequent error paths. Use 'indio_dev->channels' directly instead, so that we avoid such memory leak problem. Signed-off-by:
Fabio Estevam <fabio.estevam@freescale.com> Reviewed-by:
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by:
Jonathan Cameron <jic23@kernel.org> Cc: Oliver Neukum <ONeukum@suse.com> Signed-off-by:
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Fabio Estevam authored
commit d8c9d23e upstream. 'channels' is allocated via kmemdup and it is never freed in the subsequent error paths. Use 'indio_dev->channels' directly instead, so that we avoid such memory leak problem. Signed-off-by:
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Fabio Estevam authored
commit 9ecdbed7 upstream. 'channels' is allocated via kmemdup and it is never freed in the subsequent error paths. Use 'indio_dev->channels' directly instead, so that we avoid such memory leak problem. Signed-off-by:
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Dan Carpenter authored
commit 4a102b4d upstream. There is a bug in omap2_mbox_probe() where we try do: mbox->irq = platform_get_irq(pdev, info->irq_id); if (mbox->irq < 0) { The problem is that mbox->irq is unsigned so the error handling doesn't work. I've changed it to a signed integer. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Cc: Suman Anna <s-anna@ti.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Omar Ramirez Luna <omar.ramirez@copitl.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Cc: Oliver Neukum <ONeukum@suse.com> Signed-off-by:
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Bill Richardson authored
commit a865a589 upstream. This module has always been GPL licensed. It was just missing the explicit declaration to avoid tainting the kernel. Signed-off-by:
Bill Richardson <wfrichar@chromium.org> Signed-off-by:
Doug Anderson <dianders@chromium.org> Signed-off-by:
Lee Jones <lee.jones@linaro.org> Signed-off-by:
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Jiri Slaby authored
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Ping Cheng authored
commit 368c9664 upstream. On Feb 17, 2014, two new usages are approved to HID usage Table 18 - Digitizer Page: 5A Secondary Barrel Switch MC 16.4 5B Transducer Serial Number SV 16.3.1 This patch adds relevant definitions to hid/input. It also removes outdated comments in hid.h. Signed-off-by:
Ping Cheng <pingc@wacom.com> Reviewed-by:
Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by:
Jiri Kosina <jkosina@suse.cz> Cc: Oliver Neukum <ONeukum@suse.com> Signed-off-by:
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Olivier Gay authored
commit f362e690 upstream. Add some missing hid usages from consumer page, add some display brightness control usages from approved hid usage table request HUTTR41: http://www.usb.org/developers/hidpage/HUTRR41.pdf and add voice command usage from approved request HUTTR45: http://www.usb.org/developers/hidpage/Voice_Command_Usage.pdf [jkosina@suse.cz: removed KEY_BRIGHTNESS_TOGGLE / KEY_DISPLAYTOGGLE conflict from hid-debug.c] Signed-off-by:
Olivier Gay <ogay@logitech.com> Signed-off-by:
Mathieu Meisser <mmeisser@logitech.com> Acked-by:
Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by:
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Hans de Goede authored
commit 5820e4d4 upstream. Add mapping for "AL Next Task/Application", "AL Previous Task/Application" and "AL File Browser" buttons, as found on the Microsoft Office keyboard. Note that there already is a mapping for "AL Local Machine Browser" to KEY_FILE. Unless we ever encounter a device with both that should not be a problem. Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
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Srinivas Pandruvada authored
commit f74346a0 upstream. Fix issue with the sleeping calling hid_hw_request under spinlock. When i2c is used as HID transport, this is calling kmalloc, which can sleep. So remove call to this function while under spinlock. [ 1067.021961] Call Trace: [ 1067.021970] [<ffffffff8192f5f2>] dump_stack+0x4d/0x6f [ 1067.021976] [<ffffffff811109f2>] __might_sleep+0xd2/0xf0 [ 1067.021981] [<ffffffff811ea15b>] __kmalloc+0xeb/0x200 [ 1067.021989] [<ffffffff816e0cb3>] ? hid_alloc_report_buf+0x23/0x30 [ 1067.021993] [<ffffffff816e0cb3>] hid_alloc_report_buf+0x23/0x30 [ 1067.021997] [<ffffffff816f4cb7>] i2c_hid_request+0x57/0x110 [ 1067.022006] [<ffffffffa02bc61c>] sensor_hub_input_attr_get_raw_value+0xbc/0x100 [hid_sensor_hub] Signed-off-by:
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Tomas Sokorai authored
commit 7c7606a2 upstream. They need to have the class SERIAL. Note: it is a Win 7 panel, not Win 8 certified. Signed-off-by:
Tomas Sokorai <tsokorai@gmail.com> Signed-off-by:
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Andrew Duggan authored
commit 9abebedb upstream. Multitouch touchpads built for Win 8.1 need to be sent an input mode feature report in order to start reporting multitouch events. This is the same process sent to Win 7 multitouch touchscreens except the value of the feature report is 3 for touchpads. Signed-off-by:
Andrew Duggan <aduggan@synaptics.com> Reviewed-by:
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Simon Wood authored
commit 6b5625b2 upstream. It has been reported that there is a new hardware version of the G27 in the 'wild'. This patch add's this new revision so that it can be sent the command to switch to native mode. Reported-by:
"Ivan Baldo" <ibaldo@adinet.com.uy> Tested-by:
"evilcow" <evilcow93@yahoo.com> Signed-off-by:
Simon Wood <simon@mungewell.org> Signed-off-by:
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David Herrmann authored
commit 3ccfd0a8 upstream. We need at least HID_MAX_BUFFER_SIZE (4096) bytes as input buffer. HID core depends on this as it requires every input report to be at least as big as advertised. Signed-off-by:
David Herrmann <dh.herrmann@gmail.com> Signed-off-by:
K. Y. Srinivasan <kys@microsoft.com> Signed-off-by:
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Guennadi Liakhovetski authored
commit a028c6da upstream. On r-/sh-mobile SoCs MSTP clocks are used by the runtime PM to dynamically enable and disable peripheral clocks. To make sure the clock has really started we have to read back its status register until it confirms success. Signed-off-by:
Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com> Signed-off-by:
Simon Horman <horms+renesas@verge.net.au> Signed-off-by:
Jiri Slaby <jslaby@suse.com>
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Yoshihiro Shimoda authored
commit 11313746 upstream. On R-Mobile APE6, since it has 3 thermal zones, ENR register has enable bits in bit 19-16, bit 11-8 and bit 3-0. However, on R-Car gen2, since it has 1 thermal zone, ENR register has enable bits in bit 3-0. (In other words, the write value should always be 0 for bit 31-4 of ENR register.) So, this patch fixes the ENR register value using I/O resource sets. Acked-by:
Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by:
Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by:
Eduardo Valentin <edubezval@gmail.com> Signed-off-by:
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Lukasz Majewski authored
commit 26bb0e9a upstream. It turns out that some boards can have instance->lower greater than 0 and when thermal trend is dropping it results with next_target equal to -1. Since the next_target is defined as unsigned long it is interpreted as 0xFFFFFFFF and larger than instance->upper. As a result the next_target is set to instance->upper which ramps up to maximal cooling device target when the temperature is steadily decreasing. Signed-off-by:
Lukasz Majewski <l.majewski@samsung.com> Signed-off-by:
Zhang Rui <rui.zhang@intel.com> Cc: Mason <slash.tmp@free.fr> Signed-off-by:
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Uwe Kleine-König authored
commit e5babdf9 upstream. Since commit bd31b859 (which is in 3.2-rc1) nw_gpio_lock is a raw spinlock that needs usage of the corresponding raw functions. This fixes: drivers/mtd/maps/dc21285.c: In function 'nw_en_write': drivers/mtd/maps/dc21285.c:41:340: warning: passing argument 1 of 'spinlock_check' from incompatible pointer type spin_lock_irqsave(&nw_gpio_lock, flags); In file included from include/linux/seqlock.h:35:0, from include/linux/time.h:5, from include/linux/stat.h:18, from include/linux/module.h:10, from drivers/mtd/maps/dc21285.c:8: include/linux/spinlock.h:299:102: note: expected 'struct spinlock_t *' but argument is of type 'struct raw_spinlock_t *' static inline raw_spinlock_t *spinlock_check(spinlock_t *lock) ^ drivers/mtd/maps/dc21285.c:43:25: warning: passing argument 1 of 'spin_unlock_irqrestore' from incompatible pointer type spin_unlock_irqrestore(&nw_gpio_lock, flags); ^ In file included from include/linux/seqlock.h:35:0, from include/linux/time.h:5, from include/linux/stat.h:18, from include/linux/module.h:10, from drivers/mtd/maps/dc21285.c:8: include/linux/spinlock.h:370:91: note: expected 'struct spinlock_t *' but argument is of type 'struct raw_spinlock_t *' static inline void spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags) Fixes: bd31b859 ("locking, ARM: Annotate low level hw locks as raw") Signed-off-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by:
Brian Norris <computersforpeace@gmail.com> Signed-off-by:
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Brian Norris authored
commit 073db4a5 upstream. On A MIPS 32-cores machine a BUG_ON was triggered because some acesses to mtd->usecount were done without taking mtd_table_mutex. kernel: Call Trace: kernel: [<ffffffff80401818>] __put_mtd_device+0x20/0x50 kernel: [<ffffffff804086f4>] blktrans_release+0x8c/0xd8 kernel: [<ffffffff802577e0>] __blkdev_put+0x1a8/0x200 kernel: [<ffffffff802579a4>] blkdev_close+0x1c/0x30 kernel: [<ffffffff8022006c>] __fput+0xac/0x250 kernel: [<ffffffff80171208>] task_work_run+0xd8/0x120 kernel: [<ffffffff8012c23c>] work_notifysig+0x10/0x18 kernel: kernel: Code: 2442ffff ac8202d8 000217fe <00020336> dc820128 10400003 00000000 0040f809 00000000 kernel: ---[ end trace 080fbb4579b47a73 ]--- Fixed by taking the mutex in blktrans_open and blktrans_release. Note that this locking is already suggested in include/linux/mtd/blktrans.h: struct mtd_blktrans_ops { ... /* Called with mtd_table_mutex held; no race with add/remove */ int (*open)(struct mtd_blktrans_dev *dev); void (*release)(struct mtd_blktrans_dev *dev); ... }; But we weren't following it. Originally reported by (and patched by) Zhang and Giuseppe, independently. Improved and rewritten. Reported-by:
Zhang Xingcai <zhangxingcai@huawei.com> Reported-by:
Giuseppe Cantavenera <giuseppe.cantavenera.ext@nokia.com> Tested-by:
Alexander Sverdlin <alexander.sverdlin@nokia.com> Signed-off-by:
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Grygorii Strashko authored
commit 084609bf upstream. Setting a dev_pm_ops suspend/resume pair of callbacks but not a set of hibernation callbacks means those pm functions will not be called upon hibernation - that leads to system crash on ARM during freezing if gpio-led is used in combination with CPU led trigger. It may happen after freeze_noirq stage (GPIO is suspended) and before syscore_suspend stage (CPU led trigger is suspended) - usually when disable_nonboot_cpus() is called. Log: PM: noirq freeze of devices complete after 1.425 msecs Disabling non-boot CPUs ... ^ system may crash or stuck here with message (TI AM572x) WARNING: CPU: 0 PID: 3100 at drivers/bus/omap_l3_noc.c:148 l3_interrupt_handler+0x22c/0x370() 44000000.ocp:L3 Custom Error: MASTER MPU TARGET L4_PER1_P3 (Idle): Data Access in Supervisor mode during Functional access CPU1: shutdown ^ or here Fix this by using SIMPLE_DEV_PM_OPS, which appropriately assigns the suspend and hibernation callbacks and move led_suspend/led_resume under CONFIG_PM_SLEEP to avoid build warnings. Fixes: 73e1ab41 (leds: Convert led class driver from legacy pm ops to dev_pm_ops) Signed-off-by:
Grygorii Strashko <Grygorii.Strashko@linaro.org> Acked-by:
Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by:
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Ezequiel Garcia authored
commit ea6055c4 upstream. Since commit 39a6ac11 ("spi/pl022: Devicetree support w/o platform data") the 'num-cs' parameter cannot be passed through platform data when probing with devicetree. Instead, it's a required devicetree property. Fix the binding documentation so the property is properly specified. Fixes: 39a6ac11 ("spi/pl022: Devicetree support w/o platform data") Signed-off-by:
Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Signed-off-by:
Mark Brown <broonie@kernel.org> Signed-off-by:
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Stefan Wahren authored
commit a7068e39 upstream. The buffer for condtraints debug isn't big enough to hold the output in all cases. So fix this issue by increasing the buffer. Signed-off-by:
Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by:
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Maxime Coquelin authored
commit 921cc294 upstream. The way the mask is generated in regmap_field_init() is wrong. Indeed, a field initialized with msb = 31 and lsb = 0 provokes a shift overflow while calculating the mask field. On some 32 bits architectures, such as x86, the generated mask is 0, instead of the expected 0xffffffff. This patch uses GENMASK() to fix the problem, as this macro is already safe regarding shift overflow. [-js: in 3.12, we do not have GENMASK for general access. Define locally as RM_GENMASK.] Signed-off-by:
Maxime Coquelin <maxime.coquelin@st.com> Signed-off-by:
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Arun Chandran authored
commit 15b8d2c4 upstream. In big endian mode regmap_bulk_read gives incorrect data for byte reads. This is because memcpy of a single byte from an address after full word read gives different results when endianness differs. ie. we get little-end in LE and big-end in BE. Signed-off-by:
Arun Chandran <achandran@mvista.com> Signed-off-by:
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Rafael J. Wysocki authored
commit 3836785a upstream. If there is a PM QoS latency limit and all of the sufficiently shallow C-states are disabled, the cpuidle menu governor returns 0 which on some systems is CPUIDLE_DRIVER_STATE_START and shouldn't be returned if that C-state has been disabled. Fix the issue by modifying the menu governor to return (-1) in such situations. Signed-off-by:
Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> Signed-off-by:
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Will Deacon authored
commit 6f1a6ae8 upstream. When building the kernel with a bare-metal (ELF) toolchain, the -shared option may not be passed down to collect2, resulting in silent corruption of the vDSO image (in particular, the DYNAMIC section is omitted). The effect of this corruption is that the dynamic linker fails to find the vDSO symbols and libc is instead used for the syscalls that we intended to optimise (e.g. gettimeofday). Functionally, there is no issue as the sigreturn trampoline is still intact and located by the kernel. This patch fixes the problem by explicitly passing -shared to the linker when building the vDSO. Reported-by:
Szabolcs Nagy <Szabolcs.Nagy@arm.com> Reported-by:
James Greenlaigh <james.greenhalgh@arm.com> Signed-off-by:
Will Deacon <will.deacon@arm.com> Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com> Signed-off-by:
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Dave P Martin authored
commit b9bcc919 upstream. The memmap freeing code in free_unused_memmap() computes the end of each memblock by adding the memblock size onto the base. However, if SPARSEMEM is enabled then the value (start) used for the base may already have been rounded downwards to work out which memmap entries to free after the previous memblock. This may cause memmap entries that are in use to get freed. In general, you're not likely to hit this problem unless there are at least 2 memblocks and one of them is not aligned to a sparsemem section boundary. Note that carve-outs can increase the number of memblocks by splitting the regions listed in the device tree. This problem doesn't occur with SPARSEMEM_VMEMMAP, because the vmemmap code deals with freeing the unused regions of the memmap instead of requiring the arch code to do it. This patch gets the memblock base out of the memblock directly when computing the block end address to ensure the correct value is used. Signed-off-by:
Dave Martin <Dave.Martin@arm.com> Signed-off-by:
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Catalin Marinas authored
commit 565630d5 upstream. After secondary CPU boot or hotplug, the active_mm of the idle thread is &init_mm. The init_mm.pgd (swapper_pg_dir) is only meant for TTBR1_EL1 and must not be set in TTBR0_EL1. Since when active_mm == &init_mm the TTBR0_EL1 is already set to the reserved value, there is no need to perform any context reset. Signed-off-by:
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Vineet Gupta authored
commit d57f7272 upstream. When auditing cmpxchg call sites, Chuck noted that gcc was optimizing away some of the desired LDs. | do { | new = old = *ipi_data_ptr; | new |= 1U << msg; | } while (cmpxchg(ipi_data_ptr, old, new) != old); was generating to below | 8015cef8: ld r2,[r4,0] <-- First LD | 8015cefc: bset r1,r2,r1 | | 8015cf00: llock r3,[r4] <-- atomic op | 8015cf04: brne r3,r2,8015cf10 | 8015cf08: scond r1,[r4] | 8015cf0c: bnz 8015cf00 | | 8015cf10: brne r3,r2,8015cf00 <-- Branch doesn't go to orig LD Although this was fixed by adding a ACCESS_ONCE in this call site, it seems safer (for now at least) to add compiler barrier to LLSC based cmpxchg Reported-by:
Chuck Jordan <cjordan@synopsys.com> Acked-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by:
Vineet Gupta <vgupta@synopsys.com> Signed-off-by:
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Takashi Iwai authored
commit 4df3fd17 upstream. Fujitsu Lifebook E780 sets the sequence number 0x0f to only only of the two headphones, thus the driver tries to assign another as the line-out, and this results in the inconsistent mapping between the created jack ctl and the actual I/O. Due to this, PulseAudio doesn't handle it properly and gets the silent output. The fix is to ignore the non-HP sequencer checks. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=99681Signed-off-by:
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Takashi Iwai authored
commit 7819717b upstream. Acer Aspire V5 with ALC282 codec needs the similar quirk like Dell laptops to support the headset mic. The headset mic pin is 0x19 and it's not exposed by BIOS, thus we need to fix the pincfg as well. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=96201Signed-off-by:
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Ryan Underwood authored
commit 2fb22a80 upstream. Disable write buffering on the Toshiba ToPIC95 if it is enabled by somebody (it is not supposed to be a power-on default according to the datasheet). On the ToPIC95, practically no 32-bit Cardbus card will work under heavy load without locking up the whole system if this is left enabled. I tried about a dozen. It does not affect 16-bit cards. This is similar to the O2 bugs in early controller revisions it seems. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=55961Signed-off-by:
Ryan C. Underwood <nemesis@icequake.net> Signed-off-by:
Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by:
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Brian King authored
commit 45c44b5f upstream. Increase the default init stage change timeout from 15 seconds to 30 seconds. This resolves issues we have seen with some adapters not transitioning to the first init stage within 15 seconds, which results in adapter initialization failures. Signed-off-by:
Brian King <brking@linux.vnet.ibm.com> Signed-off-by:
James Bottomley <JBottomley@Odin.com> Signed-off-by:
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Paul E. McKenney authored
commit 6e91f8cb upstream. If, at the time __rcu_process_callbacks() is invoked, there are callbacks in Tiny RCU's callback list, but none of them are ready to be invoked, the current list-management code will knit the non-ready callbacks out of the list. This can result in hangs and possibly worse. This commit therefore inserts a check for there being no callbacks that can be invoked immediately. This bug is unlikely to occur -- you have to get a new callback between the time rcu_sched_qs() or rcu_bh_qs() was called, but before we get to __rcu_process_callbacks(). It was detected by the addition of RCU-bh testing to rcutorture, which in turn was instigated by Iftekhar Ahmed's mutation testing. Although this bug was made much more likely by 915e8a4f (rcu: Remove fastpath from __rcu_process_callbacks()), this did not cause the bug, but rather made it much more probable. That said, it takes more than 40 hours of rcutorture testing, on average, for this bug to appear, so this fix cannot be considered an emergency. Signed-off-by:
Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by:
Josh Triplett <josh@joshtriplett.org> Signed-off-by:
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Bjorn Helgaas authored
commit 3d9fecf6 upstream. We enable _CRS on all systems from 2008 and later. On older systems, we ignore _CRS and assume the whole physical address space (excluding RAM and other devices) is available for PCI devices, but on systems that support physical address spaces larger than 4GB, it's doubtful that the area above 4GB is really available for PCI. After d56dbf5b ("PCI: Allocate 64-bit BARs above 4G when possible"), we try to use that space above 4GB *first*, so we're more likely to put a device there. On Juan's Toshiba Satellite Pro U200, BIOS left the graphics, sound, 1394, and card reader devices unassigned (but only after Windows had been booted). Only the sound device had a 64-bit BAR, so it was the only device placed above 4GB, and hence the only device that didn't work. Keep _CRS enabled even on pre-2008 systems if they support physical address space larger than 4GB. Fixes: d56dbf5b ("PCI: Allocate 64-bit BARs above 4G when possible") Reported-and-tested-by:
Juan Dayer <jdayer@outlook.com> Reported-and-tested-by:
Alan Horsfield <alan@hazelgarth.co.uk> Link: https://bugzilla.kernel.org/show_bug.cgi?id=99221 Link: https://bugzilla.opensuse.org/show_bug.cgi?id=907092Signed-off-by:
Bjorn Helgaas <bhelgaas@google.com> Signed-off-by:
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Eric W. Biederman authored
commit ceeb0e5d upstream. Limit the mounts fs_fully_visible considers to locked mounts. Unlocked can always be unmounted so considering them adds hassle but no security benefit. Signed-off-by:
"Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by:
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Eric W. Biederman authored
commit 93e3bce6 upstream. The warning message in prepend_path is unclear and outdated. It was added as a warning that the mechanism for generating names of pseudo files had been removed from prepend_path and d_dname should be used instead. Unfortunately the warning reads like a general warning, making it unclear what to do with it. Remove the warning. The transition it was added to warn about is long over, and I added code several years ago which in rare cases causes the warning to fire on legitimate code, and the warning is now firing and scaring people for no good reason. Reported-by:
Ivan Delalande <colona@arista.com> Reported-by:
Omar Sandoval <osandov@osandov.com> Fixes: f48cfddc ("vfs: In d_path don't call d_dname on a mount point") Signed-off-by:
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Jan Kara authored
commit 2426f391 upstream. file_remove_suid() could mistakenly set S_NOSEC inode bit when root was modifying the file. As a result following writes to the file by ordinary user would avoid clearing suid or sgid bits. Fix the bug by checking actual mode bits before setting S_NOSEC. Signed-off-by:
Jan Kara <jack@suse.cz> Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
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