- 01 Feb, 2017 21 commits
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Mika Westerberg authored
commit ecc89953 upstream. PADCFGLOCK (and PADCFGLOCK_TX) offset in Broxton actually starts at 0x060 and not 0x090 as used in the driver. Fix it to use the correct offset. Signed-off-by:
Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by:
Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Arnd Bergmann authored
commit c739c0a7 upstream. A rare randconfig build failure shows up in this driver when the CRC32 helper is not there: drivers/media/built-in.o: In function `s5k4ecgx_s_power': s5k4ecgx.c:(.text+0x9eb4): undefined reference to `crc32_le' This adds the 'select' that all other users of this function have. Fixes: 8b99312b ("[media] Add v4l2 subdev driver for S5K4ECGX sensor") Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by:
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Kenneth Lee authored
commit 828f6fa6 upstream. 1. Release pid before enter odp flow 2. Release pid when fail to allocate memory Fixes: 87773dd5 ("IB: ib_umem_release() should decrement mm->pinned_vm from ib_umem_get") Fixes: 8ada2c1c ("IB/core: Add support for on demand paging regions") Signed-off-by:
Kenneth Lee <liguozhu@hisilicon.com> Reviewed-by:
Haggai Eran <haggaie@mellanox.com> Reviewed-by:
Leon Romanovsky <leon@kernel.org> Signed-off-by:
Doug Ledford <dledford@redhat.com> Signed-off-by:
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Paolo Abeni authored
commit fc791b63 upstream. After the commit 9207f9d4 ("net: preserve IP control block during GSO segmentation"), the GSO CB and the IPoIB CB conflict. That destroy the IPoIB address information cached there, causing a severe performance regression, as better described here: http://marc.info/?l=linux-kernel&m=146787279825501&w=2 This change moves the data cached by the IPoIB driver from the skb control lock into the IPoIB hard header, as done before the commit 936d7de3 ("IPoIB: Stop lying about hard_header_len and use skb->cb to stash LL addresses"). In order to avoid GRO issue, on packet reception, the IPoIB driver stash into the skb a dummy pseudo header, so that the received packets have actually a hard header matching the declared length. To avoid changing the connected mode maximum mtu, the allocated head buffer size is increased by the pseudo header length. After this commit, IPoIB performances are back to pre-regression value. v2 -> v3: rebased v1 -> v2: avoid changing the max mtu, increasing the head buf size Fixes: 9207f9d4 ("net: preserve IP control block during GSO segmentation") Signed-off-by:
Paolo Abeni <pabeni@redhat.com> Signed-off-by:
David S. Miller <davem@davemloft.net> Cc: Vasiliy Tolstov <v.tolstov@selfip.ru> Cc: Nikolay Borisov <n.borisov.lkml@gmail.com> Cc: Doug Ledford <dledford@redhat.com> Signed-off-by:
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Ander Conselvan de Oliveira authored
commit c34f0786 upstream. In the path where intel_crt_detect_ddc() detects a CRT, if would return true without freeing the edid. Fixes: a2bd1f54 ("drm/i915: check whether we actually received an edid in detect_ddc") Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: intel-gfx@lists.freedesktop.org Signed-off-by:
Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Reviewed-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by:
Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1484922525-6131-1-git-send-email-ander.conselvan.de.oliveira@intel.com (cherry picked from commit c96b63a6) Signed-off-by:
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Kinglong Mee authored
commit c929ea0b upstream. After removing sunrpc module, I get many kmemleak information as, unreferenced object 0xffff88003316b1e0 (size 544): comm "gssproxy", pid 2148, jiffies 4294794465 (age 4200.081s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffffb0cfb58a>] kmemleak_alloc+0x4a/0xa0 [<ffffffffb03507fe>] kmem_cache_alloc+0x15e/0x1f0 [<ffffffffb0639baa>] ida_pre_get+0xaa/0x150 [<ffffffffb0639cfd>] ida_simple_get+0xad/0x180 [<ffffffffc06054fb>] nlmsvc_lookup_host+0x4ab/0x7f0 [lockd] [<ffffffffc0605e1d>] lockd+0x4d/0x270 [lockd] [<ffffffffc06061e5>] param_set_timeout+0x55/0x100 [lockd] [<ffffffffc06cba24>] svc_defer+0x114/0x3f0 [sunrpc] [<ffffffffc06cbbe7>] svc_defer+0x2d7/0x3f0 [sunrpc] [<ffffffffc06c71da>] rpc_show_info+0x8a/0x110 [sunrpc] [<ffffffffb044a33f>] proc_reg_write+0x7f/0xc0 [<ffffffffb038e41f>] __vfs_write+0xdf/0x3c0 [<ffffffffb0390f1f>] vfs_write+0xef/0x240 [<ffffffffb0392fbd>] SyS_write+0xad/0x130 [<ffffffffb0d06c37>] entry_SYSCALL_64_fastpath+0x1a/0xa9 [<ffffffffffffffff>] 0xffffffffffffffff I found, the ida information (dynamic memory) isn't cleanup. Signed-off-by:
Kinglong Mee <kinglongmee@gmail.com> Fixes: 2f048db4 ("SUNRPC: Add an identifier for struct rpc_clnt") Signed-off-by:
Trond Myklebust <trond.myklebust@primarydata.com> Signed-off-by:
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Benjamin Coddington authored
commit a430607b upstream. Some nfsv4.0 servers may return a mode for the verifier following an open with EXCLUSIVE4 createmode, but this does not mean the client should skip setting the mode in the following SETATTR. It should only do that for EXCLUSIVE4_1 or UNGAURDED createmode. Fixes: 5334c5bd ("NFS: Send attributes in OPEN request for NFS4_CREATE_EXCLUSIVE4_1") Signed-off-by:
Benjamin Coddington <bcodding@redhat.com> Signed-off-by:
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Chuck Lever authored
commit 059aa734 upstream. Xuan Qi reports that the Linux NFSv4 client failed to lock a file that was migrated. The steps he observed on the wire: 1. The client sent a LOCK request to the source server 2. The source server replied NFS4ERR_MOVED 3. The client switched to the destination server 4. The client sent the same LOCK request to the destination server with a bumped lock sequence ID 5. The destination server rejected the LOCK request with NFS4ERR_BAD_SEQID RFC 3530 section 8.1.5 provides a list of NFS errors which do not bump a lock sequence ID. However, RFC 3530 is now obsoleted by RFC 7530. In RFC 7530 section 9.1.7, this list has been updated by the addition of NFS4ERR_MOVED. Reported-by:
Xuan Qi <xuan.qi@oracle.com> Signed-off-by:
Chuck Lever <chuck.lever@oracle.com> Signed-off-by:
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Helge Deller authored
commit 2ad5d52d upstream. In swab.h the "#if BITS_PER_LONG > 32" breaks compiling userspace programs if BITS_PER_LONG is #defined by userspace with the sizeof() compiler builtin. Solve this problem by using __BITS_PER_LONG instead. Since we now #include asm/bitsperlong.h avoid further potential userspace pollution by moving the #define of SHIFT_PER_LONG to bitops.h which is not exported to userspace. This patch unbreaks compiling qemu on hppa/parisc. Signed-off-by:
Helge Deller <deller@gmx.de> Signed-off-by:
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Vineet Gupta authored
commit 9aed02fe upstream. After emulating an unaligned access in delay slot of a branch, we pretend as the delay slot never happened - so return back to actual branch target (or next PC if branch was not taken). Curently we did this by handling STATUS32.DE, we also need to clear the BTA.T bit, which is disregarded when returning from original misaligned exception, but could cause weirdness if it took the interrupt return path (in case interrupt was acive too) One ARC700 customer ran into this when enabling unaligned access fixup for kernel mode accesses as well Signed-off-by:
Vineet Gupta <vgupta@synopsys.com> Signed-off-by:
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Vineet Gupta authored
commit 36425cd6 upstream. commit 3c7c7a2f ("ARC: Don't use "+l" inline asm constraint") modified the inline assembly to setup LP_COUNT register manually and NOT rely on gcc to do it (with the +l inline assembler contraint hint, now being retired in the compiler) However the fix was flawed as we didn't add LP_COUNT to asm clobber list, meaning gcc doesn't know that LP_COUNT or zero-delay-loops are in action in the inline asm. This resulted in some fun - as nested ZOL loops were being generared | mov lp_count,250000 ;16 # tmp235, | lp .L__GCC__LP14 # <======= OUTER LOOP (gcc generated) | .L14: | ld r2, [r5] # MEM[(volatile u32 *)prephitmp_43], w | dmb 1 | breq r2, -1, @.L21 #, w,, | bbit0 r2,1,@.L13 # w,, | ld r4,[r7] ;25 # loops_per_jiffy, loops_per_jiffy | mpymu r3,r4,r6 #, loops_per_jiffy, tmp234 | | mov lp_count, r3 # <====== INNER LOOP (from inline asm) | lp 1f | nop | 1: | nop_s | .L__GCC__LP14: ; loop end, start is @.L14 #, This caused issues with drivers relying on sane behaviour of udelay friends. With LP_COUNT added to clobber list, gcc doesn't generate the outer loop in say above case. Addresses STAR 9001146134 Reported-by:
Joao Pinto <jpinto@synopsys.com> Fixes: 3c7c7a2f ("ARC: Don't use "+l" inline asm constraint") Signed-off-by:
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Yegor Yefremov authored
commit befa6011 upstream. In order to make the driver work with the common clock framework, this patch converts the clk_enable()/clk_disable() to clk_prepare_enable()/clk_disable_unprepare(). Also add error checking for clk_prepare_enable(). Signed-off-by:
Yegor Yefremov <yegorslists@googlemail.com> Signed-off-by:
Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by:
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Einar Jón authored
commit c97c52be upstream. The priv->device pointer for c_can_pci is never set, but it is used without a NULL check in c_can_start(). Setting it in c_can_pci_probe() like c_can_plat_probe() prevents c_can_pci.ko from crashing, with and without CONFIG_PM. This might also cause the pm_runtime_*() functions in c_can.c to actually be executed for c_can_pci devices - they are the only other place where priv->device is used, but they all contain a null check. Signed-off-by:
Einar Jón <tolvupostur@gmail.com> Signed-off-by:
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Martin Schwidefsky authored
commit 9dce990d upstream. Ensure that if userspace supplies insufficient data to PTRACE_SETREGSET to fill all the registers, the thread's old registers are preserved. convert_vx_to_fp() is adapted to handle only a specified number of registers rather than unconditionally handling all of them: other callers of this function are adapted appropriately. Based on an initial patch by Dave Martin. Reported-by:
Dave Martin <Dave.Martin@arm.com> Signed-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by:
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Jack Morgenstein authored
commit b4cfe397 upstream. If IPV6 has not been enabled in the underlying kernel, we must avoid calling IPV6 procedures in rdma_cm.ko. This requires using "IS_ENABLED(CONFIG_IPV6)" in "if" statements surrounding any code which calls external IPV6 procedures. In the instance fixed here, procedure cma_bind_addr() called ipv6_addr_type() -- which resulted in calling external procedure __ipv6_addr_type(). Fixes: 6c26a771 ("RDMA/cma: fix IPv6 address resolution") Cc: Spencer Baugh <sbaugh@catern.com> Signed-off-by:
Jack Morgenstein <jackm@dev.mellanox.co.il> Reviewed-by:
Moni Shoua <monis@mellanox.com> Signed-off-by:
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Arnd Bergmann authored
commit 950eabbd upstream. With some gcc versions, we get a warning about the eicon driver, and that currently shows up as the only remaining warning in one of the build bots: In file included from ../drivers/isdn/hardware/eicon/message.c:30:0: eicon/message.c: In function 'mixer_notify_update': eicon/platform.h:333:18: warning: array subscript is above array bounds [-Warray-bounds] The code is easily changed to open-code the unusual PUT_WORD() line causing this to avoid the warning. Link: http://arm-soc.lixom.net/buildlogs/stable-rc/v4.4.45/Signed-off-by:
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Eric Dumazet authored
commit ff9f8a7c upstream. We perform the conversion between kernel jiffies and ms only when exporting kernel value to user space. We need to do the opposite operation when value is written by user. Only matters when HZ != 1000 Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
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Vlastimil Babka authored
commit d51e9894 upstream. Since commit be97a41b ("mm/mempolicy.c: merge alloc_hugepage_vma to alloc_pages_vma") alloc_pages_vma() can potentially free a mempolicy by mpol_cond_put() before accessing the embedded nodemask by __alloc_pages_nodemask(). The commit log says it's so "we can use a single exit path within the function" but that's clearly wrong. We can still do that when doing mpol_cond_put() after the allocation attempt. Make sure the mempolicy is not freed prematurely, otherwise __alloc_pages_nodemask() can end up using a bogus nodemask, which could lead e.g. to premature OOM. Fixes: be97a41b ("mm/mempolicy.c: merge alloc_hugepage_vma to alloc_pages_vma") Link: http://lkml.kernel.org/r/20170118141124.8345-1-vbabka@suse.czSigned-off-by:
Vlastimil Babka <vbabka@suse.cz> Acked-by:
Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by:
Michal Hocko <mhocko@suse.com> Acked-by:
David Rientjes <rientjes@google.com> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Takashi Iwai authored
commit fdf35a6b upstream. I noticed that the VT switch doesn't work any longer with a Dell laptop with 1366x768 eDP when the machine is connected with a DP monitor. It behaves as if VT were switched, but the graphics remain frozen. Actually the keyboard works, so I could switch back to VT7 again. I tried to track down the problem, and encountered a long story until we reach to this error: - The machine is booted with video=1366x768 option (the distro installer seems to add it as default). - Recently, drm_helper_probe_single_connector_modes() deals with cmdline modes, and it tries to create a new mode when no matching mode is found. - The drm_mode_create_from_cmdline_mode() creates a mode based on either CVT of GFT according to the given cmdline mode; in our case, it's 1366x768. - Since both CVT and GFT can't express the width 1366 due to alignment, the resultant mode becomes 1368x768, slightly larger than the given size. - Later on, the atomic commit is performed, and in drm_atomic_check_only(), the size of each plane is checked. - The size check of 1366x768 fails due to the above, and eventually the whole VT switch fails. Back in the history, we've had a manual fix-up of 1368x768 in various places via c09dedb7 ("drm/edid: Add a workaround for 1366x768 HD panel"), but they have been all in drm_edid.c at probing the modes from EDID. For addressing the problem above, we need a similar hack to the mode newly created from cmdline, manually adjusting the width when the expected size is 1366 while we get 1368 instead. Fixes: eaf99c74 ("drm: Perform cmdline mode parsing during...") Signed-off-by:
Takashi Iwai <tiwai@suse.de> Link: http://patchwork.freedesktop.org/patch/msgid/20170109145614.29454-1-tiwai@suse.deReviewed-by:
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Dave Martin authored
commit fd7c9914 upstream. Ensure that if userspace supplies insufficient data to PTRACE_SETREGSET to fill all the registers, the thread's old registers are preserved. Signed-off-by:
Chris Metcalf <cmetcalf@mellanox.com> Signed-off-by:
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Kees Cook authored
commit 2dc705a9 upstream. Copying color maps to userspace doesn't check the value of to->start, which will cause kernel heap buffer OOB read due to signedness wraps. CVE-2016-8405 Link: http://lkml.kernel.org/r/20170105224249.GA50925@beast Fixes: 1da177e4 ("Linux-2.6.12-rc2") Signed-off-by:
Kees Cook <keescook@chromium.org> Reported-by: Peter Pi (@heisecode) of Trend Micro Cc: Min Chong <mchong@google.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by:
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- 26 Jan, 2017 19 commits
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Greg Kroah-Hartman authored
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Mark Rutland authored
commit 7d9e8f71 upstream. Generally, taking an unexpected exception should be a fatal event, and bad_mode is intended to cater for this. However, it should be possible to contain unexpected synchronous exceptions from EL0 without bringing the kernel down, by sending a SIGILL to the task. We tried to apply this approach in commit 9955ac47 ("arm64: don't kill the kernel on a bad esr from el0"), by sending a signal for any bad_mode call resulting from an EL0 exception. However, this also applies to other unexpected exceptions, such as SError and FIQ. The entry paths for these exceptions branch to bad_mode without configuring the link register, and have no kernel_exit. Thus, if we take one of these exceptions from EL0, bad_mode will eventually return to the original user link register value. This patch fixes this by introducing a new bad_el0_sync handler to cater for the recoverable case, and restoring bad_mode to its original state, whereby it calls panic() and never returns. The recoverable case branches to bad_el0_sync with a bl, and returns to userspace via the usual ret_to_user mechanism. Signed-off-by:
Mark Rutland <mark.rutland@arm.com> Fixes: 9955ac47 ("arm64: don't kill the kernel on a bad esr from el0") Reported-by:
Mark Salter <msalter@redhat.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com> Signed-off-by:
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Madhavan Srinivasan authored
commit df21d2fa upstream. Test uses PMC2 to count the event. But PMC1 is being initialized. Patch to fix it. Fixes: 3752e453 ('selftests/powerpc: Add tests of PMU EBBs') Signed-off-by:
Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au> Signed-off-by:
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Marek Szyprowski authored
commit 5c9e6c2b upstream. PL330 DMA engine driver is leaking a runtime reference after any terminated DMA transactions. This patch fixes this issue by tracking runtime PM state of the device and making additional call to pm_runtime_put() in terminate_all callback if needed. Fixes: ae43b328 ("ARM: 8202/1: dmaengine: pl330: Add runtime Power Management support v12") Signed-off-by:
Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by:
Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by:
Vinod Koul <vinod.koul@intel.com> Signed-off-by:
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Nicolas Iooss authored
commit 7ec03e60 upstream. Function ite_set_carrier_params() uses variable use_demodulator after having initialized it to false in some if branches, but this variable is never set to true otherwise. This bug has been found using clang -Wsometimes-uninitialized warning flag. Fixes: 620a32bb ("[media] rc: New rc-based ite-cir driver for several ITE CIRs") Signed-off-by:
Nicolas Iooss <nicolas.iooss_linux@m4x.org> Signed-off-by:
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Dan Carpenter authored
commit c9205e18 upstream. devm_pinctrl_get() can fail so we should check for that. Fixes: 0a6824bc ('[media] v4l2: blackfin: select proper pinctrl state in ppi_set_params if CONFIG_PINCTRL is enabled') Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Linus Walleij authored
commit 90f92c63 upstream. The following patch was sketched by Russell in response to my crashes on the PB11MPCore after the patch for software-based priviledged no access support for ARMv8.1. See this thread: http://marc.info/?l=linux-arm-kernel&m=144051749807214&w=2 I am unsure what is going on, I suspect everyone involved in the discussion is. I just want to repost this to get the discussion restarted, as I still have to apply this patch with every kernel iteration to get my PB11MPCore Realview running. Testing by Neil Armstrong on the Oxnas NAS has revealed that this bug exist also on that widely deployed hardware, so we are probably currently regressing all ARM11MPCore systems. Cc: Russell King <linux@armlinux.org.uk> Cc: Will Deacon <will.deacon@arm.com> Fixes: a5e090ac ("ARM: software-based priviledged-no-access support") Tested-by:
Neil Armstrong <narmstrong@baylibre.com> Signed-off-by:
Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by:
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Arnd Bergmann authored
commit f0e8faa7 upstream. This function clearly never worked and always returns true, as pointed out by gcc-7: arch/arm/mach-ux500/pm.c: In function 'prcmu_is_cpu_in_wfi': arch/arm/mach-ux500/pm.c:137:212: error: ?: using integer constants in boolean context, the expression will always evaluate to 'true' [-Werror=int-in-bool-context] With the added braces, the condition actually makes sense. Fixes: 34fe6f10 ("mfd : Check if the other db8500 core is in WFI") Signed-off-by:
Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by:
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Gary Bisson authored
commit 6ab5c2b6 upstream. This patch fixes the following error: sgtl5000 0-000a: Error reading chip id -6 imx-sgtl5000 sound: ASoC: CODEC DAI sgtl5000 not registered imx-sgtl5000 sound: snd_soc_register_card failed (-517) The problem was that the pinctrl group was linked to the sound driver instead of the codec node. Since the codec is probed first, the sys_mclk was missing and it would therefore fail to initialize. Fixes: b32e7002 ("ARM: dts: imx: add Boundary Devices Nitrogen6_Max board") Signed-off-by:
Gary Bisson <gary.bisson@boundarydevices.com> Signed-off-by:
Shawn Guo <shawnguo@kernel.org> Signed-off-by:
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Dave Martin authored
commit ad9e202a upstream. We cannot preserve partial fields for hardware breakpoints, because the values written by userspace to the hardware breakpoint registers can't subsequently be recovered intact from the hardware. So, just reject attempts to write incomplete fields with -EINVAL. Fixes: 478fcb2c ("arm64: Debugging support") Signed-off-by:
Will Deacon <Will.Deacon@arm.com> Signed-off-by:
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Dave Martin authored
commit aeb1f39d upstream. This patch adds an explicit __reserved[] field to user_fpsimd_state to replace what was previously unnamed padding. This ensures that data in this region are propagated across assignment rather than being left possibly uninitialised at the destination. Fixes: 60ffc30d ("arm64: Exception handling") Signed-off-by:
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Dave Martin authored
commit a672401c upstream. Ensure that if userspace supplies insufficient data to PTRACE_SETREGSET to fill all the registers, the thread's old registers are preserved. Fixes: 5d220ff9 ("arm64: Better native ptrace support for compat tasks") Signed-off-by:
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Dave Martin authored
commit 9dd73f72 upstream. Ensure that if userspace supplies insufficient data to PTRACE_SETREGSET to fill all the registers, the thread's old registers are preserved. Fixes: 766a85d7 ("arm64: ptrace: add NT_ARM_SYSTEM_CALL regset") Signed-off-by:
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Dave Martin authored
commit 9a17b876 upstream. Ensure that if userspace supplies insufficient data to PTRACE_SETREGSET to fill all the registers, the thread's old registers are preserved. Fixes: 478fcb2c ("arm64: Debugging support") Signed-off-by:
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Fabien Parent authored
commit 43849785 upstream. Read access to the SPI flash are broken on da850-evm, i.e. the data read is not what is actually programmed on the flash. According to the datasheet for the M25P64 part present on the da850-evm, if the SPI frequency is higher than 20MHz then the READ command is not usable anymore and only the FAST_READ command can be used to read data. This commit specifies in the DTS that we should use FAST_READ command instead of the READ command. Tested-by:
Kevin Hilman <khilman@baylibre.com> Signed-off-by:
Fabien Parent <fparent@baylibre.com> [nsekhar@ti.com: subject line adjustment] Signed-off-by:
Sekhar Nori <nsekhar@ti.com> Signed-off-by:
Olof Johansson <olof@lixom.net>
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Jeff Layton authored
commit 6df8c9d8 upstream. sparse says: fs/ceph/mds_client.c:291:23: warning: restricted __le32 degrades to integer fs/ceph/mds_client.c:293:28: warning: restricted __le32 degrades to integer fs/ceph/mds_client.c:294:28: warning: restricted __le32 degrades to integer fs/ceph/mds_client.c:296:28: warning: restricted __le32 degrades to integer The op value is __le32, so we need to convert it before comparing it. Signed-off-by:
Jeff Layton <jlayton@redhat.com> Reviewed-by:
Sage Weil <sage@redhat.com> Signed-off-by:
Ilya Dryomov <idryomov@gmail.com> Signed-off-by:
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Mark Rutland authored
commit ddc37832 upstream. On APQ8060, the kernel crashes in arch_hw_breakpoint_init, taking an undefined instruction trap within write_wb_reg. This is because Scorpion CPUs erroneously appear to set DBGPRSR.SPD when WFI is issued, even if the core is not powered down. When DBGPRSR.SPD is set, breakpoint and watchpoint registers are treated as undefined. It's possible to trigger similar crashes later on from userspace, by requesting the kernel to install a breakpoint or watchpoint, as we can go idle at any point between the reset of the debug registers and their later use. This has always been the case. Given that this has always been broken, no-one has complained until now, and there is no clear workaround, disable hardware breakpoints and watchpoints on Scorpion to avoid these issues. Signed-off-by:
Stephen Boyd <sboyd@codeaurora.org> Acked-by:
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Sriharsha Basavapatna authored
commit ce1ca7d2 upstream. In rdma_read_chunk_frmr() when ib_post_send() fails, the error code path invokes ib_dma_unmap_sg() to unmap the sg list. It then invokes svc_rdma_put_frmr() which in turn tries to unmap the same sg list through ib_dma_unmap_sg() again. This second unmap is invalid and could lead to problems when the iova being unmapped is subsequently reused. Remove the call to unmap in rdma_read_chunk_frmr() and let svc_rdma_put_frmr() handle it. Fixes: 412a15c0 ("svcrdma: Port to new memory registration API") Signed-off-by:
Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com> Reviewed-by:
Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by:
J. Bruce Fields <bfields@redhat.com> Signed-off-by:
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Joonyoung Shim authored
commit bc7c36ee upstream. When a CPU goes offline a potentially pending timer interrupt is not cleared. When the CPU comes online again then the pending interrupt is delivered before the per cpu clockevent device is initialized. As a consequence the tick interrupt handler dereferences a NULL pointer. [ 51.251378] Unable to handle kernel NULL pointer dereference at virtual address 00000040 [ 51.289348] task: ee942d00 task.stack: ee960000 [ 51.293861] PC is at tick_periodic+0x38/0xb0 [ 51.298102] LR is at tick_handle_periodic+0x1c/0x90 Clear the pending interrupt in the cpu dying path. Fixes: 56a94f13 ("clocksource: exynos_mct: Avoid blocking calls in the cpu hotplug notifier") Reported-by:
Seung-Woo Kim <sw0312.kim@samsung.com> Signed-off-by:
Joonyoung Shim <jy0922.shim@samsung.com> Cc: linux-samsung-soc@vger.kernel.org Cc: cw00.choi@samsung.com Cc: daniel.lezcano@linaro.org Cc: javier@osg.samsung.com Cc: kgene@kernel.org Cc: krzk@kernel.org Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1484628876-22065-1-git-send-email-jy0922.shim@samsung.comSigned-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
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