- 24 Sep, 2016 40 commits
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Al Viro authored
commit c2f18fa4 upstream. * should zero on any failure * __get_user() should use __copy_from_user(), not copy_from_user() Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Al Viro authored
commit 2e29f50a upstream. a) should not leave crap on fault b) should _not_ require access_ok() in any cases. Signed-off-by:
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Al Viro authored
commit c6852389 upstream. It could be done in exception-handling bits in __get_user_b() et.al., but the surgery involved would take more knowledge of sh64 details than I have or _want_ to have. Signed-off-by:
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Al Viro authored
commit c90a3bc5 upstream. Signed-off-by:
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Al Viro authored
commit 43403eab upstream. Signed-off-by:
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Al Viro authored
commit 1c109fab upstream. get_user_ex(x, ptr) should zero x on failure. It's not a lot of a leak (at most we are leaking uninitialized 64bit value off the kernel stack, and in a fairly constrained situation, at that), but the fix is trivial, so... Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
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Al Viro authored
commit d0cf3851 upstream. Signed-off-by:
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Al Viro authored
commit 8630c322 upstream. really ugly, but apparently avr32 compilers turns access_ok() into something so bad that they want it in assembler. Left that way, zeroing added in inline wrapper. Signed-off-by:
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Al Viro authored
commit e98b9e37 upstream. Signed-off-by:
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Al Viro authored
commit d4690f1e upstream. ... by turning it into what used to be multipages counterpart Signed-off-by:
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Boris Brezillon authored
commit 5eb0d6eb upstream. aic5_irq_domain_xlate() and aic_irq_domain_xlate() take the generic chip lock without disabling interrupts, which can lead to a deadlock if an interrupt occurs while the lock is held in one of these functions. Replace irq_gc_{lock,unlock}() calls by irq_gc_{lock_irqsave,unlock_irqrestore}() ones to prevent this bug from happening. Fixes: b1479ebb ("irqchip: atmel-aic: Add atmel AIC/AIC5 drivers") Signed-off-by:
Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by:
Marc Zyngier <marc.zyngier@arm.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com> Link: http://lkml.kernel.org/r/1473775109-4192-2-git-send-email-boris.brezillon@free-electrons.comSigned-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
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Boris Brezillon authored
commit ebf9ff75 upstream. Some irqchip drivers need to take the generic chip lock outside of the irq context. Provide the irq_gc_{lock_irqsave,unlock_irqrestore}() helpers to allow one to disable irqs while entering a critical section protected by gc->lock. Note that we do not provide optimized version of these helpers for !SMP, because they are not called from the hot-path. [ tglx: Added a comment when these helpers should be [not] used ] Signed-off-by:
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Kristian H. Kristensen authored
commit 47a66e45 upstream. Similar to struct drm_update_draw, struct drm_mode_fb_cmd2 has an unaligned 64 bit field (modifier). This get packed differently between 32 bit and 64 bit modes on architectures that can handle unaligned 64 bit access (X86 and IA64). Other architectures pack the structs the same and don't need the compat wrapper. Use the same condition for drm_mode_fb_cmd2 as we use for drm_update_draw. Note that only the modifier will be packed differently between compat and non-compat versions. Reviewed-by:
Rob Clark <robdclark@gmail.com> Signed-off-by:
Kristian H. Kristensen <hoegsberg@chromium.org> [seanpaul added not at bottom of commit msg re: modifier] Signed-off-by:
Sean Paul <seanpaul@chromium.org> Link: http://patchwork.freedesktop.org/patch/msgid/1473801645-116011-1-git-send-email-hoegsberg@chromium.orgSigned-off-by:
Dave Airlie <airlied@redhat.com> Signed-off-by:
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Jan Leupold authored
commit d31ed3f0 upstream. The code is applying the same scaling for the X and Y components, thus making the scaling feature only functional when both components have the same scaling factor. Do the s/_w/_h/ replacement where appropriate to fix vertical scaling. Signed-off-by:
Jan Leupold <leupold@rsi-elektrotechnik.de> Fixes: 1a396789 ("drm: add Atmel HLCDC Display Controller support") Signed-off-by:
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Arnd Bergmann authored
commit facc432f upstream. The napi_synchronize() function is defined twice: The definition for SMP builds waits for other CPUs to be done, while the uniprocessor variant just contains a barrier and ignores its argument. In the mvneta driver, this leads to a warning about an unused variable when we lookup the NAPI struct of another CPU and then don't use it: ethernet/marvell/mvneta.c: In function 'mvneta_percpu_notifier': ethernet/marvell/mvneta.c:2910:30: error: unused variable 'other_port' [-Werror=unused-variable] There are no other CPUs on a UP build, so that code never runs, but gcc does not know this. The nicest solution seems to be to turn the napi_synchronize() helper into an inline function for the UP case as well, as that leads gcc to not complain about the argument being unused. Once we do that, we can also combine the two cases into a single function definition and use if(IS_ENABLED()) rather than #ifdef to make it look a bit nicer. The warning first came up in linux-4.4, but I failed to catch it earlier. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Fixes: f8642885 ("net: mvneta: Statically assign queues to CPUs") Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
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Arnd Bergmann authored
commit 236dec05 upstream. Using "make tinyconfig" produces a couple of annoying warnings that show up for build test machines all the time: .config:966:warning: override: NOHIGHMEM changes choice state .config:965:warning: override: SLOB changes choice state .config:963:warning: override: KERNEL_XZ changes choice state .config:962:warning: override: CC_OPTIMIZE_FOR_SIZE changes choice state .config:933:warning: override: SLOB changes choice state .config:930:warning: override: CC_OPTIMIZE_FOR_SIZE changes choice state .config:870:warning: override: SLOB changes choice state .config:868:warning: override: KERNEL_XZ changes choice state .config:867:warning: override: CC_OPTIMIZE_FOR_SIZE changes choice state I've made a previous attempt at fixing them and we discussed a number of alternatives. I tried changing the Makefile to use "merge_config.sh -n $(fragment-list)" but couldn't get that to work properly. This is yet another approach, based on the observation that we do want to see a warning for conflicting 'choice' options, and that we can simply make them non-conflicting by listing all other options as disabled. This is a trivial patch that we can apply independent of plans for other changes. Link: http://lkml.kernel.org/r/20160829214952.1334674-2-arnd@arndb.de Link: https://storage.kernelci.org/mainline/v4.7-rc6/x86-tinyconfig/build.log https://patchwork.kernel.org/patch/9212749/Signed-off-by:
Josh Triplett <josh@joshtriplett.org> Reviewed-by:
Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by:
Ingo Molnar <mingo@kernel.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Arnd Bergmann authored
commit 00affcac upstream. gcc warns about the 'found' variable possibly being used uninitialized: drivers/soc/qcom/spm.c: In function 'spm_dev_probe': drivers/soc/qcom/spm.c:305:5: error: 'found' may be used uninitialized in this function [-Werror=maybe-uninitialized] However, the code is correct because we know that there is always at least one online CPU. This initializes the 'found' variable to zero before the loop so the compiler knows it does not have to warn about it. Signed-off-by:
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Arnd Bergmann authored
commit 32844138 upstream. resource_size_t may be defined as 32 or 64 bit depending on configuration, so it cannot be printed using the normal format strings, as gcc correctly warns: pinctrl-at91-pio4.c: In function 'atmel_pinctrl_probe': pinctrl-at91-pio4.c:1003:41: warning: format '%u' expects argument of type 'unsigned int', but argument 5 has type 'resource_size_t {aka long long unsigned int}' [-Wformat=] dev_dbg(dev, "bank %i: hwirq=%u\n", i, res->start); This changes the format string to use the special "%pr" format string that prints a resource, and changes the arguments so we the resource structure directly. Signed-off-by:
Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
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Arnd Bergmann authored
commit 260b3164 upstream. The dw_mmc driver stores the physical address of the MMIO registers in a pointer, which requires the use of type casts, and is actually broken if anyone ever has this device on a 32-bit SoC in registers above 4GB. Gcc warns about this possibility when the driver is built with ARM LPAE enabled: mmc/host/dw_mmc.c: In function 'dw_mci_edmac_start_dma': mmc/host/dw_mmc.c:702:17: warning: cast from pointer to integer of different size cfg.dst_addr = (dma_addr_t)(host->phy_regs + fifo_offset); ^ mmc/host/dw_mmc-pltfm.c: In function 'dw_mci_pltfm_register': mmc/host/dw_mmc-pltfm.c:63:19: warning: cast to pointer from integer of different size host->phy_regs = (void *)(regs->start); This changes the code to use resource_size_t, which gets rid of the warning, the bug and the useless casts. Signed-off-by:
Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by:
Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by:
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Mika Kuoppala authored
commit 44eb0cb9 upstream. VMA offsets are 64 bits. Plane surface offsets are in ggtt and the hardware register to set this is thus 32 bits. Be explicit about these and convert carefully to from vma to final size. This will make sparse happy by not creating 32bit pointers out of 64bit vma offsets. Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by:
Mika Kuoppala <mika.kuoppala@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1446204375-29831-1-git-send-email-mika.kuoppala@intel.comReviewed-by:
Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by:
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Mike Danese authored
commit 3610a2ad upstream. The compilation emits a warning in function ‘snprintf’, inlined from ‘set_cmdline’ at ../Documentation/mic/mpssd/mpssd.c:1541:9: /usr/include/x86_64-linux-gnu/bits/stdio2.h:64:10: warning: call to __builtin___snprintf_chk will always overflow destination buffer This was introduced in commit f4a66c20 ("misc: mic: Update MIC host daemon with COSM changes") and is fixed by reverting the changes to the size argument of these snprintf statements. Cc: Ashutosh Dixit <ashutosh.dixit@intel.com> Signed-off-by:
Mike Danese <mikedanese@google.com> Signed-off-by:
Jonathan Corbet <corbet@lwn.net> Signed-off-by:
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Linus Torvalds authored
commit 166c5a6e upstream. In commit e4570897 ("drm/dp-helper: Move the legacy helpers to gma500") the legacy i2c helpers were moved to the only remaining user of them, the gma500 driver. Together with that move, i2c_dp_aux_add_bus() was marked deprecated and started warning about its remaining use. It's now been a year and a half of annoying warning, and apparently nobody cares enough about gma500 to try to move it along to the more modern models. Get rid of the warning - if even the gma500 people don't care enough, then they should certainly not spam other innocent developers with a warning that might hide other, much more real issues. Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Alan Cox <alan@linux.intel.com> Signed-off-by:
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Wei Yongjun authored
commit 751eb6b6 upstream. In general, when DAD detected IPv6 duplicate address, ifp->state will be set to INET6_IFADDR_STATE_ERRDAD and DAD is stopped by a delayed work, the call tree should be like this: ndisc_recv_ns -> addrconf_dad_failure <- missing ifp put -> addrconf_mod_dad_work -> schedule addrconf_dad_work() -> addrconf_dad_stop() <- missing ifp hold before call it addrconf_dad_failure() called with ifp refcont holding but not put. addrconf_dad_work() call addrconf_dad_stop() without extra holding refcount. This will not cause any issue normally. But the race between addrconf_dad_failure() and addrconf_dad_work() may cause ifp refcount leak and netdevice can not be unregister, dmesg show the following messages: IPv6: eth0: IPv6 duplicate address fe80::XX:XXXX:XXXX:XX detected! ... unregister_netdevice: waiting for eth0 to become free. Usage count = 1 Fixes: c15b1cca ("ipv6: move DAD and addrconf_verify processing to workqueue") Signed-off-by:
Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by:
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Balbir Singh authored
commit 135e8c92 upstream. The origin of the issue I've seen is related to a missing memory barrier between check for task->state and the check for task->on_rq. The task being woken up is already awake from a schedule() and is doing the following: do { schedule() set_current_state(TASK_(UN)INTERRUPTIBLE); } while (!cond); The waker, actually gets stuck doing the following in try_to_wake_up(): while (p->on_cpu) cpu_relax(); Analysis: The instance I've seen involves the following race: CPU1 CPU2 while () { if (cond) break; do { schedule(); set_current_state(TASK_UN..) } while (!cond); wakeup_routine() spin_lock_irqsave(wait_lock) raw_spin_lock_irqsave(wait_lock) wake_up_process() } try_to_wake_up() set_current_state(TASK_RUNNING); .. list_del(&waiter.list); CPU2 wakes up CPU1, but before it can get the wait_lock and set current state to TASK_RUNNING the following occurs: CPU3 wakeup_routine() raw_spin_lock_irqsave(wait_lock) if (!list_empty) wake_up_process() try_to_wake_up() raw_spin_lock_irqsave(p->pi_lock) .. if (p->on_rq && ttwu_wakeup()) .. while (p->on_cpu) cpu_relax() .. CPU3 tries to wake up the task on CPU1 again since it finds it on the wait_queue, CPU1 is spinning on wait_lock, but immediately after CPU2, CPU3 got it. CPU3 checks the state of p on CPU1, it is TASK_UNINTERRUPTIBLE and the task is spinning on the wait_lock. Interestingly since p->on_rq is checked under pi_lock, I've noticed that try_to_wake_up() finds p->on_rq to be 0. This was the most confusing bit of the analysis, but p->on_rq is changed under runqueue lock, rq_lock, the p->on_rq check is not reliable without this fix IMHO. The race is visible (based on the analysis) only when ttwu_queue() does a remote wakeup via ttwu_queue_remote. In which case the p->on_rq change is not done uder the pi_lock. The result is that after a while the entire system locks up on the raw_spin_irqlock_save(wait_lock) and the holder spins infintely Reproduction of the issue: The issue can be reproduced after a long run on my system with 80 threads and having to tweak available memory to very low and running memory stress-ng mmapfork test. It usually takes a long time to reproduce. I am trying to work on a test case that can reproduce the issue faster, but thats work in progress. I am still testing the changes on my still in a loop and the tests seem OK thus far. Big thanks to Benjamin and Nick for helping debug this as well. Ben helped catch the missing barrier, Nick caught every missing bit in my theory. Signed-off-by:
Balbir Singh <bsingharora@gmail.com> [ Updated comment to clarify matching barriers. Many architectures do not have a full barrier in switch_to() so that cannot be relied upon. ] Signed-off-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Alexey Kardashevskiy <aik@ozlabs.ru> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Nicholas Piggin <nicholas.piggin@gmail.com> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/e02cce7b-d9ca-1ad0-7a61-ea97c7582b37@gmail.comSigned-off-by:
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Johannes Berg authored
commit 4d0bd46a upstream. This reverts commit 3d5fdff4. Ben Hutchings pointed out that the commit isn't safe since it assumes that the structure used by the driver is iw_point, when in fact there's no way to know about that. Fortunately, the only driver in the tree that ever runs this code path is the wilc1000 staging driver, so it doesn't really matter. Clearly I should have investigated this better before applying, sorry. Reported-by:
Ben Hutchings <ben@decadent.org.uk> Fixes: 3d5fdff4 ("wext: Fix 32 bit iwpriv compatibility issue with 64 bit Kernel") Signed-off-by:
Johannes Berg <johannes.berg@intel.com> Signed-off-by:
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Felix Fietkau authored
commit 7711aaf0 upstream. A station pointer can be passed to the driver on tx, before it has been marked as associated. Since ath9k_sta_state was initializing the entry too late, it resulted in some spurious crashes. Fixes: df3c6eb3 ("ath9k: Use sta_state() callback") Signed-off-by:
Felix Fietkau <nbd@nbd.name> Signed-off-by:
Kalle Valo <kvalo@qca.qualcomm.com> Signed-off-by:
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Guoqing Jiang authored
commit 47a7b0d8 upstream. The md-cluster is compiled as module by default, if it is compiled by built-in way, then we can't make md-cluster works. [64782.630008] md/raid1:md127: active with 2 out of 2 mirrors [64782.630528] md-cluster module not found. [64782.630530] md127: Could not setup cluster service (-2) Fixes: edb39c9d ("Introduce md_cluster_operations to handle cluster functions") Reported-by:
Marc Smith <marc.smith@mcc.edu> Reviewed-by:
NeilBrown <neilb@suse.com> Signed-off-by:
Guoqing Jiang <gqjiang@suse.com> Signed-off-by:
Shaohua Li <shli@fb.com> Signed-off-by:
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Mathias Nyman authored
commit bcf42aa6 upstream. The stop endpoint command has its own 5 second timeout timer. If the timeout function is triggered between USB3 and USB2 host removal it will try to call usb_hc_died(xhci_to_hcd(xhci)->primary_hcd) the ->primary_hcd will be set to NULL at USB3 hcd removal. Fix this by first checking if the PCI host is being removed, and also by using only xhci_to_hcd() as it will always return the primary hcd. Signed-off-by:
Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by:
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Miklos Szeredi authored
commit 8fba54ae upstream. When reading from a loop device backed by a fuse file it deadlocks on lock_page(). This is because the page is already locked by the read() operation done on the loop device. In this case we don't want to either lock the page or dirty it. So do what fs/direct-io.c does: only dirty the page for ITER_IOVEC vectors. Reported-by:
Sheng Yang <sheng@yasker.org> Fixes: aa4d8616 ("block: loop: switch to VFS ITER_BVEC") Signed-off-by:
Miklos Szeredi <mszeredi@redhat.com> Reviewed-by:
Ashish Samant <ashish.samant@oracle.com> Tested-by:
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Chris Mason authored
commit cbd60aa7 upstream. We use a btrfs_log_ctx structure to pass information into the tree log commit, and get error values out. It gets added to a per log-transaction list which we walk when things go bad. Commit d1433deb added an optimization to skip waiting for the log commit, but didn't take root_log_ctx out of the list. This patch makes sure we remove things before exiting. Signed-off-by:
Chris Mason <clm@fb.com> Fixes: d1433debSigned-off-by:
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Ard Biesheuvel authored
commit 0bd22235 upstream. When calling .import() on a cryptd ahash_request, the structure members that describe the child transform in the shash_desc need to be initialized like they are when calling .init() Signed-off-by:
Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by:
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Will Deacon authored
commit 872c63fb upstream. smp_mb__before_spinlock() is intended to upgrade a spin_lock() operation to a full barrier, such that prior stores are ordered with respect to loads and stores occuring inside the critical section. Unfortunately, the core code defines the barrier as smp_wmb(), which is insufficient to provide the required ordering guarantees when used in conjunction with our load-acquire-based spinlock implementation. This patch overrides the arm64 definition of smp_mb__before_spinlock() to map to a full smp_mb(). Cc: Peter Zijlstra <peterz@infradead.org> Reported-by:
Alan Stern <stern@rowland.harvard.edu> 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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Icenowy Zheng authored
commit 486095fa upstream. PG8, PG9 is said to be the CTS/RTS pins for UART1 according to the A23/33 datasheets. However, the function is wrongly named "uart2" in the pinctrl driver. This patch fixes this by modifying them to be named "uart1". Signed-off-by:
Icenowy Zheng <icenowy@aosc.xyz> Acked-by:
Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by:
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James Hartley authored
commit a32ac291 upstream. A previous patch attempted to fix the pinmuxes for mfio 84 - 89, but it omitted a change to pistachio_pin_group pistachio_groups, which results in incorrect pll_lock signals being routed. Apply the correct mux settings throughout the driver. fixes: cefc03e5 ("pinctrl: Add Pistachio SoC pin control driver") fixes: e9adb336 ("pinctrl: pistachio: fix mfio84-89 function description and pinmux.") Signed-off-by:
James Hartley <james.hartley@imgtec.com> Reviewed-by:
Sifan Naeem <Sifan.Naeem@imgtec.com> Signed-off-by:
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Mikulas Patocka authored
commit 4e870e94 upstream. When dm-crypt processes writes, it allocates a new bio in crypt_alloc_buffer(). The bio is allocated from a bio set and it can have at most BIO_MAX_PAGES vector entries, however the incoming bio can be larger (e.g. if it was allocated by bcache). If the incoming bio is larger, bio_alloc_bioset() fails and an error is returned. To avoid the error, we test for a too large bio in the function crypt_map() and use dm_accept_partial_bio() to split the bio. dm_accept_partial_bio() trims the current bio to the desired size and asks DM core to send another bio with the rest of the data. Signed-off-by:
Mikulas Patocka <mpatocka@redhat.com> Signed-off-by:
Mike Snitzer <snitzer@redhat.com> Signed-off-by:
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Mikulas Patocka authored
commit a5d60783 upstream. Move log_one_block()'s atomic_inc(&lc->io_blocks) before bio_alloc() to fix a bug that the target hangs if bio_alloc() fails. The error path does put_io_block(lc), so atomic_inc(&lc->io_blocks) must occur before invoking the error path to avoid underflow of lc->io_blocks. Signed-off-by:
Josef Bacik <jbacik@fb.com> Signed-off-by:
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Vladimir Zapolskiy authored
commit 91e630d9 upstream. The kthread_run() function returns either a valid task_struct or ERR_PTR() value, check for NULL is invalid. This change fixes potential for oops, e.g. in OOM situation. Signed-off-by:
Vladimir Zapolskiy <vz@mleia.com> Signed-off-by:
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Pawel Moll authored
commit b928466b upstream. The code setting XP watchpoint comparator and mask registers should, in order to be fully compliant with specification, zero one or more most significant bits of each field. In both L cases it means zeroing bit 63. The bitmask doing this was wrong, though, zeroing bit 60 instead. Fortunately, due to a lucky coincidence, this turned out to be fairly innocent with the existing hardware. Fixed now. Signed-off-by:
Pawel Moll <pawel.moll@arm.com> Signed-off-by:
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Pawel Moll authored
commit b7c1beb2 upstream. Fuzzing the CCN perf driver revealed a small but definitely dangerous mistake in the event setup code. When a cycle counter is requested, the driver should not reconfigure the events bus at all, otherwise it will corrupt (in most but the simplest cases) its configuration and may end up accessing XP array out of its bounds and corrupting control registers. Reported-by:
Mark Rutland <mark.rutland@arm.com> Reviewed-by:
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Pawel Moll authored
commit 4e486cba upstream. The "Miscellaneous Node" fell through cracks of node initialisation, as its ID is shared with HN-I. This patch treats MN as a special case (which it is), adding separate validation check for it and pre-defining the node ID in relevant events descriptions. That way one can simply run: # perf stat -a -e ccn/mn_ecbarrier/ <workload> Additionally, direction in the MN pseudo-events XP watchpoint definitions is corrected to be "TX" (1) as they are defined from the crosspoint point of view (thus barriers are transmitted from XP to MN). Signed-off-by:
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