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2015-12-16nfsd: don't hold ls_mutex across a layout recallJeff Layton
We do need to serialize layout stateid morphing operations, but we currently hold the ls_mutex across a layout recall which is pretty ugly. It's also unnecessary -- once we've bumped the seqid and copied it, we don't need to serialize the rest of the CB_LAYOUTRECALL vs. anything else. Just drop the mutex once the copy is done. This was causing a "workqueue leaked lock or atomic" warning and an occasional deadlock. There's more work to be done here but this fixes the immediate regression. Fixes: cc8a55320b5f "nfsd: serialize layout stateid morphing operations" Cc: stable@vger.kernel.org Reported-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: Jeff Layton <jeff.layton@primarydata.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-12-16net: fix warnings in 'make htmldocs' by moving macro definition out of field ↵Hannes Frederic Sowa
declaration Docbook does not like the definition of macros inside a field declaration and adds a warning. Move the definition out. Fixes: 79462ad02e86180 ("net: add validation for the socket syscall protocol argument") Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-16rhashtable: Fix walker list corruptionHerbert Xu
The commit ba7c95ea3870fe7b847466d39a049ab6f156aa2c ("rhashtable: Fix sleeping inside RCU critical section in walk_stop") introduced a new spinlock for the walker list. However, it did not convert all existing users of the list over to the new spin lock. Some continued to use the old mutext for this purpose. This obviously led to corruption of the list. The fix is to use the spin lock everywhere where we touch the list. This also allows us to do rcu_rad_lock before we take the lock in rhashtable_walk_start. With the old mutex this would've deadlocked but it's safe with the new spin lock. Fixes: ba7c95ea3870 ("rhashtable: Fix sleeping inside RCU...") Reported-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-16rhashtable: Enforce minimum size on initial hash tableHerbert Xu
William Hua <william.hua@canonical.com> wrote: > > I wasn't aware there was an enforced minimum size. I simply set the > nelem_hint in the rhastable_params struct to 1, expecting it to grow as > needed. This caused a segfault afterwards when trying to insert an > element. OK we're doing the size computation before we enforce the limit on min_size. ---8<--- We need to do the initial hash table size computation after we have obtained the correct min_size/max_size parameters. Otherwise we may end up with a hash table whose size is outside the allowed envelope. Fixes: a998f712f77e ("rhashtable: Round up/down min/max_size to...") Reported-by: William Hua <william.hua@canonical.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-16scripts: recordmcount: break hardlinksRussell King
recordmcount edits the file in-place, which can cause problems when using ccache in hardlink mode. Arrange for recordmcount to break a hardlinked object. Link: http://lkml.kernel.org/r/E1a7MVT-0000et-62@rmk-PC.arm.linux.org.uk Cc: stable@vger.kernel.org # 2.6.37+ Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2015-12-16Merge remote-tracking branches 'spi/fix/dspi' and 'spi/fix/spidev' into ↵Mark Brown
spi-linus
2015-12-16Merge remote-tracking branch 'spi/fix/core' into spi-linusMark Brown
2015-12-16spi: fix parent-device reference leakJohan Hovold
Fix parent-device reference leak due to SPI-core taking an unnecessary reference to the parent when allocating the master structure, a reference that was never released. Note that driver core takes its own reference to the parent when the master device is registered. Fixes: 49dce689ad4e ("spi doesn't need class_device") Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org
2015-12-16ASoC: Intel: sst: fix sst_memcpy32 wrong with non-4x bytes issueJie Yang
sst_memcpy32() only copied bytes/4 32bits, which means it dropped the remaining bytes%4 bytes wrongly. Here add copying those missing bytes, first to a 32bits tmp, and then write the tmp to 32bits iomem. Signed-off-by: Jie Yang <yang.jie@intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-16spi: spidev: Hold spi_lock over all defererences of spi in release()Mark Brown
We use the spi_lock spinlock to protect against races between the device being removed and file operations on the spidev. This means that in the removal path all references to the device need to be done under lock as in removal we dropping references to the device. Reported-by: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-16Merge branch 'topic/firewire-update' into for-nextTakashi Iwai
2015-12-16Partial revert of "powerpc: Individual System V IPC system calls"Michael Ellerman
This partially reverts commit a34236155afb1cc41945e58388ac988431bcb0b8. While reviewing the glibc patch to exploit the individual IPC calls, Arnd & Andreas noticed that we were still requiring userspace to pass IPC_64 in order to get the new style IPC API. With a bit of cleanup in the kernel we can drop that requirement, and instead only provide the new style API, which will simplify things for userspace. Rather than try and sneak that patch into 4.4, instead we will drop the individual IPC calls for powerpc, and merge them again in 4.5 once the cleanup patch has gone in. Because we've already added sys_mlock2() as syscall #378, we don't do a full revert of the IPC calls. Instead we drop the __NR #defines, and send those now undefined syscall numbers to sys_ni_syscall(). This leaves a gap in the syscall numbers, but we'll reuse them when we merge the individual IPC calls. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Arnd Bergmann <arnd@arndb.de>
2015-12-16inet: tcp: fix inetpeer_set_addr_v4()Eric Dumazet
David Ahern added a vif field in the a4 part of inetpeer_addr struct. This broke IPv4 TCP fast open client side and more generally tcp metrics cache, because inetpeer_addr_cmp() is now comparing two u32 instead of one. inetpeer_set_addr_v4() needs to properly init vif field, otherwise the comparison result depends on uninitialized data. Fixes: 192132b9a034 ("net: Add support for VRFs to inetpeer cache") Reported-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15ipv6: automatically enable stable privacy mode if stable_secret setHannes Frederic Sowa
Bjørn reported that while we switch all interfaces to privacy stable mode when setting the secret, we don't set this mode for new interfaces. This does not make sense, so change this behaviour. Fixes: 622c81d57b392cc ("ipv6: generation of stable privacy addresses for link-local and autoconf") Reported-by: Bjørn Mork <bjorn@mork.no> Cc: Bjørn Mork <bjorn@mork.no> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-16fsl-ifc: add missing include on ARM64Lijun Pan
Need to include sched.h to fix the following compilation error if FSL_IFC is enabled on ARM64 machine. In file included from include/linux/mmzone.h:9:0, from include/linux/gfp.h:5, from include/linux/kmod.h:22, from include/linux/module.h:13, from drivers/memory/fsl_ifc.c:22: drivers/memory/fsl_ifc.c: In function ‘check_nand_stat’: include/linux/wait.h:165:35: error: ‘TASK_NORMAL’ undeclared (first use in this function) #define wake_up(x) __wake_up(x, TASK_NORMAL, 1, NULL) ^ drivers/memory/fsl_ifc.c:136:3: note: in expansion of macro ‘wake_up’ wake_up(&ctrl->nand_wait); ^ include/linux/wait.h:165:35: note: each undeclared identifier is reported only once for each function it appears in #define wake_up(x) __wake_up(x, TASK_NORMAL, 1, NULL) ^ drivers/memory/fsl_ifc.c:136:3: note: in expansion of macro ‘wake_up’ wake_up(&ctrl->nand_wait); ^ Analysis is as follows: I put some instrumental code and get the following .h files inclusion sequence: In file included from ./arch/arm64/include/asm/compat.h:25:0, from ./arch/arm64/include/asm/stat.h:23, from include/linux/stat.h:5, from include/linux/module.h:10, from drivers/memory/fsl_ifc.c:23: include/linux/sched.h:113:1: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘struct’ struct sched_attr { ^ CONFIG_COMPAT=y is enabled while 39 and 48 bit VA is selected. When 42 bit VA is selected, it does not enable CONFIG_COMPAT=y In ./arch/arm64/include/asm/stat.h:23, it has "#ifdef CONFIG_COMPAT" "#include <asm/compat.h>" "..." "#endif" Since ./arch/arm64/include/asm/stat.h does not include ./arch/arm64/include/asm/compat.h, then it will not include include/linux/sched.h Hence we have to manually add "#include <linux/sched.h>" in drivers/memory/fsl_ifc.c Signed-off-by: Lijun Pan <Lijun.Pan@freescale.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-12-15Revert "scatterlist: use sg_phys()"Dan Williams
commit db0fa0cb0157 "scatterlist: use sg_phys()" did replacements of the form: phys_addr_t phys = page_to_phys(sg_page(s)); phys_addr_t phys = sg_phys(s) & PAGE_MASK; However, this breaks platforms where sizeof(phys_addr_t) > sizeof(unsigned long). Revert for 4.3 and 4.4 to make room for a combined helper in 4.5. Cc: <stable@vger.kernel.org> Cc: Jens Axboe <axboe@fb.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Fixes: db0fa0cb0157 ("scatterlist: use sg_phys()") Suggested-by: Joerg Roedel <joro@8bytes.org> Reported-by: Vitaly Lavrov <vel21ripn@gmail.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2015-12-15net: fix uninitialized variable issuetadeusz.struk@intel.com
msg_iocb needs to be initialized on the recv/recvfrom path. Otherwise afalg will wrongly interpret it as an async call. Cc: stable@vger.kernel.org Reported-by: Harald Freudenberger <freude@linux.vnet.ibm.com> Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15bluetooth: Validate socket address length in sco_sock_bind().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15Input: elan_i2c - set input device's vendor and product IDsCharlie Mooney
Previously the "vendor" and "product" IDs for the elan_i2c driver simply reported 0000. This patch modifies the elan_i2c driver to include the Elan vendor ID and the touchpad's product id under input/input*/{vendor,product}. Specifically, this is to allow us to apply a generic Elan gestures config that will apply to all Elan touchpads on ChromeOS. These configs match to input devices in various ways, but one major way is by matching on vendor ID. Adding this patch allows the default Elan touchpad config to be applied to Elan touchpads in this kernel by matching on devices that have vendor ID 04f3. Note that product ID is also available via custom sysfs entry "product_id" as well. Signed-off-by: Charlie Mooney <charliemooney@chromium.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-15Merge tag 'dmaengine-fix-4.4-rc6' of ↵Linus Torvalds
git://git.infradead.org/users/vkoul/slave-dma Pull dmaengine fixes from Vinod Koul: "This has fixes spread thru driver, notably among them: - edma fixes for recent edma DT changes which went into 4.4 - odd fixes for at_hdmac - minor fixes on bc dma and mic dma" * tag 'dmaengine-fix-4.4-rc6' of git://git.infradead.org/users/vkoul/slave-dma: dmaengine: at_xdmac: fix at_xdmac_prep_dma_memcpy() dmaengine: edma: DT: Change reserved slot array from 16bit to 32bit type dmaengine: edma: DT: Change memcpy channel array from 16bit to 32bit type dmaengine: mic_x100: add missing spin_unlock dmaengine: bcm2835-dma: Convert to use DMA pool dmaengine: at_xdmac: fix bad behavior in interleaved mode dmaengine: at_xdmac: fix false condition for memset_sg transfers dmaengine: at_xdmac: fix macro typo
2015-12-15Merge tag 'fbdev-fixes-4.4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux Pull two fbdev fixes from Tomi Valkeinen: - OMAP: fix analog tv-out when using omapdrm - fsl: Fix kernel crash when diu_ops is not implemented * tag 'fbdev-fixes-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: OMAPDSS: fix timings for VENC to match what omapdrm expects video: fbdev: fsl: Fix kernel crash when diu_ops is not implemented
2015-12-15Merge tag 'please-pull-mlock2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux Pull ia64 fix from Tony Luck: "Wire up mlock2() syscall for ia64" * tag 'please-pull-mlock2' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux: [IA64] Enable mlock2 syscall for ia64
2015-12-15net_sched: make qdisc_tree_decrease_qlen() work for non mqEric Dumazet
Stas Nichiporovich reported a regression in his HFSC qdisc setup on a non multi queue device. It turns out I mistakenly added a TCQ_F_NOPARENT flag on all qdisc allocated in qdisc_create() for non multi queue devices, which was rather buggy. I was clearly mislead by the TCQ_F_ONETXQUEUE that is also set here for no good reason, since it only matters for the root qdisc. Fixes: 4eaf3b84f288 ("net_sched: fix qdisc_tree_decrease_qlen() races") Reported-by: Stas Nichiporovich <stasn77@gmail.com> Tested-by: Stas Nichiporovich <stasn77@gmail.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15Merge branch 'ser_gigaset-platform-device-dealloc'David S. Miller
Paul Bolle says: ==================== ser_gigaset: fix deallocation of platform device structure Sascha Levin reported that the syzkaller fuzzer triggered a WARNING in ser_gigaset (see https://lkml.kernel.org/g/56587467.8050102@oracle.com ). It turned out that ser_gigaset has always deallocated its platform device structure incorrectly. Tilman submitted the patch that fixes that (3/4) and a related cleanup (4/4). Tilman also submitted a minor cleanup of some NULL checks (1/4) that prompted Alan to turn those checks into WARN_ONs (2/4). If no one hits these WARN_ONs in the next couple of releases these WARN_ONs should be removed. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15ser_gigaset: remove unnecessary kfree() calls from release methodTilman Schmidt
device->platform_data and platform_device->resource are never used and remain NULL through their entire life. Drops the kfree() calls for them from the device release method. Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15ser_gigaset: fix deallocation of platform device structureTilman Schmidt
When shutting down the device, the struct ser_cardstate must not be kfree()d immediately after the call to platform_device_unregister() since the embedded struct platform_device is still in use. Move the kfree() call to the release method instead. Signed-off-by: Tilman Schmidt <tilman@imap.cc> Fixes: 2869b23e4b95 ("drivers/isdn/gigaset: new M101 driver (v2)") Reported-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15ser_gigaset: turn nonsense checks into WARN_ONAlan Cox
These checks do nothing useful to protect the code from races. On the other hand if the old code has been masking a real bug we would like to know about it. The check for tiocmset is kept because it is valid for a tty driver to have a NULL tiocmset method. That in itself is probably a mistake given modern coding practices - but needs fixing in the tty layer. Signed-off-by: Alan Cox <alan@linux.intel.com> Acked-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15ser_gigaset: fix up NULL checksTilman Schmidt
Commit f34d7a5b7010 ("tty: The big operations rework") changed tty->driver to tty->ops but left NULL checks for tty->driver untouched. Fix. Signed-off-by: Tilman Schmidt <tilman@imap.cc> [pebolle: removed Fixes tag] Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15Merge branch 'linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fix from Herbert Xu: "This fixes a boundary condition in the blkcipher SG walking code that can lead to a crash when used with the new chacha20 algorithm" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: skcipher - Copy iv from desc even for 0-len walks
2015-12-15Fix user-visible spelling errorLinus Torvalds
Pavel Machek reports a warning about W+X pages found in the "Persisent" kmap area. After grepping for it (using the correct spelling), and not finding it, I noticed how the debug printk was just misspelled. Fix it. The actual mapping bug that Pavel reported is still open. It's apparently a separate issue from the known EFI page tables, looks like it's related to the HIGHMEM mappings. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-12-15qlcnic: fix a timeout loopDan Carpenter
The problem here is that at the end of the loop we test for if idc->vnic_wait_limit is zero, but since idc->vnic_wait_limit-- is a post-op, it actually ends up set to (u8)-1. I have fixed this by moving the decrement inside the loop. Fixes: 486a5bc77a4a ('qlcnic: Add support for 83xx suspend and resume.') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15rcar: mux: Avoid use of ret uninitialisedMark Brown
We use ret as the return value from the rsnd_mix_probe() but if there are no child nodes and no errors then we will never initialize ret leading to build warnings. Ensure ret is initialized before we iterate over the child nodes to avoid this. Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-15rcar: dvc: Avoid use of ret uninitialisedMark Brown
We use ret as the return value from the rsnd_dvc_probe() but if there are no child nodes and no errors then we will never initialize ret leading to build warnings. Ensure ret is initialized before we iterate over the child nodes to avoid this. Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-15rcar: ctu: Avoid use of ret uninitialisedMark Brown
We use ret as the return value from the rsnd_ctu_probe() but if there are no child nodes and no errors then we will never initialize ret leading to build warnings. Ensure ret is initialized before we iterate over the child nodes to avoid this. Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-15sfc: fix a timeout loopDan Carpenter
We test for if "tries" is zero at the end but "tries--" is a post-op so it will end with "tries" set to -1. I have changed it to a pre-op instead. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15qlge: fix a timeout loop in ql_change_rx_buffers()Dan Carpenter
The problem here is that after the loop we test for "if (!i) " but because "i--" is a post-op we exit with i set to -1. I have fixed this by changing it to a pre-op instead. I had to change the starting value from 3 to 4 so that we still iterate 3 times. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15amd-xgbe: fix a couple timeout loopsDan Carpenter
At the end of the loop we test "if (!count)" but because "count--" is a post-op then the loop will end with count set to -1. I have fixed this by changing it to --count. Fixes: c5aa9e3b8156 ('amd-xgbe: Initial AMD 10GbE platform driver') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15mISDN: fix a loop countDan Carpenter
There are two issue here. 1) cnt starts as maxloop + 1 so all these loops iterate one more time than intended. 2) At the end of the loop we test for "if (maxloop && !cnt)" but for the first two loops, we end with cnt equal to -1. Changing this to a pre-op means we end with cnt set to 0. Fixes: cae86d4a4e56 ('mISDN: Add driver for Infineon ISDN chipset family') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15Merge branch 'for-chris-4.4' of ↵Chris Mason
git://git.kernel.org/pub/scm/linux/kernel/git/fdmanana/linux into for-linus-4.4
2015-12-15Btrfs: check prepare_uptodate_page() error code earlierChris Mason
prepare_pages() may end up calling prepare_uptodate_page() twice if our write only spans a single page. But if the first call returns an error, our page will be unlocked and its not safe to call it again. This bug goes all the way back to 2011, and it's not something commonly hit. While we're here, add a more explicit check for the page being truncated away. The bare lock_page() alone is protected only by good thoughts and i_mutex, which we're sure to regret eventually. Reported-by: Dave Jones <dsj@fb.com> Signed-off-by: Chris Mason <clm@fb.com>
2015-12-15Btrfs: check for empty bitmap list in setup_cluster_bitmapsChris Mason
Dave Jones found a warning from kasan in setup_cluster_bitmaps() ================================================================== BUG: KASAN: stack-out-of-bounds in setup_cluster_bitmap+0xc4/0x5a0 at addr ffff88039bef6828 Read of size 8 by task nfsd/1009 page:ffffea000e6fbd80 count:0 mapcount:0 mapping: (null) index:0x0 flags: 0x8000000000000000() page dumped because: kasan: bad access detected CPU: 1 PID: 1009 Comm: nfsd Tainted: G W 4.4.0-rc3-backup-debug+ #1 ffff880065647b50 000000006bb712c2 ffff88039bef6640 ffffffffa680a43e 0000004559c00000 ffff88039bef66c8 ffffffffa62638d1 ffffffffa61121c0 ffff8803a5769de8 0000000000000296 ffff8803a5769df0 0000000000046280 Call Trace: [<ffffffffa680a43e>] dump_stack+0x4b/0x6d [<ffffffffa62638d1>] kasan_report_error+0x501/0x520 [<ffffffffa61121c0>] ? debug_show_all_locks+0x1e0/0x1e0 [<ffffffffa6263948>] kasan_report+0x58/0x60 [<ffffffffa6814b00>] ? rb_last+0x10/0x40 [<ffffffffa66f8af4>] ? setup_cluster_bitmap+0xc4/0x5a0 [<ffffffffa6262ead>] __asan_load8+0x5d/0x70 [<ffffffffa66f8af4>] setup_cluster_bitmap+0xc4/0x5a0 [<ffffffffa66f675a>] ? setup_cluster_no_bitmap+0x6a/0x400 [<ffffffffa66fcd16>] btrfs_find_space_cluster+0x4b6/0x640 [<ffffffffa66fc860>] ? btrfs_alloc_from_cluster+0x4e0/0x4e0 [<ffffffffa66fc36e>] ? btrfs_return_cluster_to_free_space+0x9e/0xb0 [<ffffffffa702dc37>] ? _raw_spin_unlock+0x27/0x40 [<ffffffffa666a1a1>] find_free_extent+0xba1/0x1520 Andrey noticed this was because we were doing list_first_entry on a list that might be empty. Rework the tests a bit so we don't do that. Signed-off-by: Chris Mason <clm@fb.com> Reprorted-by: Andrey Ryabinin <ryabinin.a.a@gmail.com> Reported-by: Dave Jones <dsj@fb.com>
2015-12-15net/mlx4_core: fix handling return value of mlx4_slave_convert_portAndrzej Hajda
The function can return negative values, so its result should be assigned to signed variable. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2046107 Fixes: fc48866f7 ('net/mlx4: Adapt code for N-Port VF') Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Acked-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15ALSA: oxfw: gather model-dependent conditions to a functionTakashi Sakamoto
Adding control elements is just for models supported by old firewire-speakers modules. The processing should be in a function to add model-dependent quirk. This commit moves the codes to the function. As a result, the function should handle error state, thus this commit also changes prototype of the function. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-12-15ALSA: oxfw: reuse driver entry to detect quirksTakashi Sakamoto
Currently, assignment to model-dependent quirk is corresponding to asynchronous transactions on IEEE 1394 bus. This is also achieved with device entry. This commit changes the processing of model-dependent quirk with the entry. As a result, the transactions are sent only for Loud models. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-12-15ALSA: oxfw: change function prototype for AV/C Audio Subunit commandTakashi Sakamoto
ALSA OXFW driver uses AV/C Audio Subunit commands to control some models. The commands get/set the state of Feature function block of the subunit. The commands are not specific to OXFW, thus there's a possibility to use them in the other drivers. Currently, helper functions for the commands require 'struct snd_oxfw', although, it's not necessarily required. It's better to change prototype of the functions without the structure for future use. This commit changes the prototype. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-12-15ALSA: oxfw: rename local functions for control elements so that they ↵Takashi Sakamoto
represent as local This commit renames local functions with prefix 'spkr_', so that they're for firewire-speakers. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-12-15ALSA: oxfw: rename a file for control elements so that it's for model-specificTakashi Sakamoto
In ALSA firewire stack, drivers basically has no control elements. This is due to the fact that each model has own functionality even if they use the same communication chipset. Implementing all of the functionalities in kernel space unreasonably increases our efforts to maintain the stack. In most case, these functionalities can be implemented in userspace via Linux fw character devices. However, ALSA OXFW driver has control elements comes from old firewire-speakers driver. Adding the elements is in a file names as 'oxfw-control.c', while the elements are really model-specific. The name is confusing because it gives an idea to handle control elements for all of OXFW-based models. This commit renames the file so that it's just for models supported by old firewire-speakers driver. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-12-15ALSA: hda - Add a fixup for Thinkpad X1 Carbon 2ndTakashi Iwai
Apply the same fixup for Thinkpad with dock to Thinkpad X1 Carbon 2nd, too. This reduces the annoying loud cracking noise problem, as well as the support of missing docking port. Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=958439 Reported-and-tested-by: Benjamin Poirier <bpoirier@suse.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-12-15ALSA: hda - Set codec to D3 at reboot/shutdown on ThinkpadsTakashi Iwai
Lenovo Thinkpads with Realtek codecs may still have some loud crackling noises at reboot/shutdown even though a few previous fixes have been applied. It's because the previous fix (disabling the default shutup callback) takes effect only at transition of the codec power state. Meanwhile, at reboot or shutdown, we don't take down the codec power as default, thus it triggers the same problem unless the codec is powered down casually by runtime PM. This patch tries to address the issue. It gives two things: - implement the separate reboot_notify hook to struct alc_spec, and call it optionally if defined. - turn off the codec to D3 for Thinkpad models via this new callback Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=958439 Reported-and-tested-by: Benjamin Poirier <bpoirier@suse.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-12-15ALSA: hda - Apply click noise workaround for Thinkpads genericallyTakashi Iwai
It seems that a workaround for Thinkpad T440s crackling noise can be applied generically to all Thinkpad models: namely, disabling the default alc269 shutup callback. This patch moves it to the existing alc_fixup_tpt440_dock() while also replacing the rest code with another existing alc_fixup_disable_aamix(). It resulted in a good code reduction. Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=958439 Reported-and-tested-by: Benjamin Poirier <bpoirier@suse.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>