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2016-02-06team: track sum of rx_nohandler for all slavesJarod Wilson
CC: Jiri Pirko <jiri@resnulli.us> CC: netdev@vger.kernel.org Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-06net: add rx_nohandler stat counterJarod Wilson
This adds an rx_nohandler stat counter, along with a sysfs statistics node, and copies the counter out via netlink as well. CC: "David S. Miller" <davem@davemloft.net> CC: Eric Dumazet <edumazet@google.com> CC: Jiri Pirko <jiri@mellanox.com> CC: Daniel Borkmann <daniel@iogearbox.net> CC: Tom Herbert <tom@herbertland.com> CC: Jay Vosburgh <j.vosburgh@gmail.com> CC: Veaceslav Falico <vfalico@gmail.com> CC: Andy Gospodarek <gospo@cumulusnetworks.com> CC: netdev@vger.kernel.org Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-06crypto: public_key - remove MPIs from public_key_signature structTadeusz Struk
After digsig_asymmetric.c is converted the MPIs can be now safely removed from the public_key_signature structure. Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-06crypto: asymmetric_keys - convert public key and digsig asym to the akcipher apiTadeusz Struk
This patch converts the module verification code to the new akcipher API. Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-06crypto: aead - move aead_request_cast helper to aead.hTadeusz Struk
Move the helper function to common header for everybody to use. changes in v2: - move the helper to crypto/internal/aead.h instead of crypto/aead.h Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-06crypto: hash - Remove crypto_hash interfaceHerbert Xu
This patch removes all traces of the crypto_hash interface, now that everyone has switched over to shash or ahash. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-06crypto: hash - Add helpers to return alg and driver namesHerbert Xu
This patch adds helpers to retrieve the alg name and driver name of crypto_shash and crypto_ahash objects. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-06crypto: skcipher - Fix driver name helperHerbert Xu
The helper crypto_skcipher_driver_name was returning the alg name and not the driver name. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-05Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge fixes from Andrew Morton: "22 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (22 commits) epoll: restrict EPOLLEXCLUSIVE to POLLIN and POLLOUT radix-tree: fix oops after radix_tree_iter_retry MAINTAINERS: trim the file triggers for ABI/API dax: dirty inode only if required thp: make deferred_split_scan() work again mm: replace vma_lock_anon_vma with anon_vma_lock_read/write ocfs2/dlm: clear refmap bit of recovery lock while doing local recovery cleanup um: asm/page.h: remove the pte_high member from struct pte_t mm, hugetlb: don't require CMA for runtime gigantic pages mm/hugetlb: fix gigantic page initialization/allocation mm: downgrade VM_BUG in isolate_lru_page() to warning mempolicy: do not try to queue pages from !vma_migratable() mm, vmstat: fix wrong WQ sleep when memory reclaim doesn't make any progress vmstat: make vmstat_update deferrable mm, vmstat: make quiet_vmstat lighter mm/Kconfig: correct description of DEFERRED_STRUCT_PAGE_INIT memblock: don't mark memblock_phys_mem_size() as __init dump_stack: avoid potential deadlocks mm: validate_mm browse_rb SMP race condition m32r: fix build failure due to SMP and MMU ...
2016-02-05Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client Pull Ceph fixes from Sage Weil: "We have a few wire protocol compatibility fixes, ports of a few recent CRUSH mapping changes, and a couple error path fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: libceph: MOSDOpReply v7 encoding libceph: advertise support for TUNABLES5 crush: decode and initialize chooseleaf_stable crush: add chooseleaf_stable tunable crush: ensure take bucket value is valid crush: ensure bucket id is valid before indexing buckets array ceph: fix snap context leak in error path ceph: checking for IS_ERR instead of NULL
2016-02-05Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm fixes from Dave Airlie: "Fixes all over the place: - amdkfd: two static checker fixes - mst: a bunch of static checker and spec/hw interaction fixes - amdgpu: fix Iceland hw properly, and some fiji bugs, along with some write-combining fixes. - exynos: some regression fixes - adv7511: fix some EDID reading issues" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (38 commits) drm/dp/mst: deallocate payload on port destruction drm/dp/mst: Reverse order of MST enable and clearing VC payload table. drm/dp/mst: move GUID storage from mgr, port to only mst branch drm/dp/mst: change MST detection scheme drm/dp/mst: Calculate MST PBN with 31.32 fixed point drm: Add drm_fixp_from_fraction and drm_fixp2int_ceil drm/mst: Add range check for max_payloads during init drm/mst: Don't ignore the MST PBN self-test result drm: fix missing reference counting decrease drm/amdgpu: disable uvd and vce clockgating on Fiji drm/amdgpu: remove exp hardware support from iceland drm/amdgpu: load MEC ucode manually on iceland drm/amdgpu: don't load MEC2 on topaz drm/amdgpu: drop topaz support from gmc8 module drm/amdgpu: pull topaz gmc bits into gmc_v7 drm/amdgpu: The VI specific EXE bit should only apply to GMC v8.0 above drm/amdgpu: iceland use CI based MC IP drm/amdgpu: move gmc7 support out of CIK dependency drm/amdgpu/gfx7: enable cp inst/reg error interrupts drm/amdgpu/gfx8: enable cp inst/reg error interrupts ...
2016-02-05Merge tag 'pm+acpi-4.5-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management and ACPI fixes from Rafael Wysocki: "These are: a fix for a recently introduced false-positive warnings about PM domain pointers being changed inappropriately (harmless but annoying), an MCH size workaround quirk for one more platform, a compiler warning fix (generic power domains framework), an ACPI LPSS (Intel SoCs) driver fixup and a cleanup of the ACPI CPPC core code. Specifics: - PM core fix to avoid false-positive warnings generated when the pm_domain field is cleared for a device that appears to be bound to a driver (Rafael Wysocki). - New MCH size workaround quirk for Intel Haswell-ULT (Josh Boyer). - Fix for an "unused function" compiler warning in the generic power domains framework (Ulf Hansson). - Fixup for the ACPI driver for Intel SoCs (acpi-lpss) to set the PM domain pointer of a device properly in one place that was overlooked by a recent PM core update (Andy Shevchenko). - Removal of a redundant function declaration in the ACPI CPPC core code (Timur Tabi)" * tag 'pm+acpi-4.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM: Avoid false-positive warnings in dev_pm_domain_set() PM / Domains: Silence compiler warning for an unused function ACPI / CPPC: remove redundant mbox_send_message() declaration ACPI / LPSS: set PM domain via helper setter PNP: Add Haswell-ULT to Intel MCH size workaround
2016-02-05radix-tree: fix oops after radix_tree_iter_retryKonstantin Khlebnikov
Helper radix_tree_iter_retry() resets next_index to the current index. In following radix_tree_next_slot current chunk size becomes zero. This isn't checked and it tries to dereference null pointer in slot. Tagged iterator is fine because retry happens only at slot 0 where tag bitmask in iter->tags is filled with single bit. Fixes: 46437f9a554f ("radix-tree: fix race in gang lookup") Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com> Cc: Matthew Wilcox <willy@linux.intel.com> Cc: Hugh Dickins <hughd@google.com> Cc: Ohad Ben-Cohen <ohad@wizery.com> Cc: Jeremiah Mahler <jmmahler@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-02-05mm: replace vma_lock_anon_vma with anon_vma_lock_read/writeKonstantin Khlebnikov
Sequence vma_lock_anon_vma() - vma_unlock_anon_vma() isn't safe if anon_vma appeared between lock and unlock. We have to check anon_vma first or call anon_vma_prepare() to be sure that it's here. There are only few users of these legacy helpers. Let's get rid of them. This patch fixes anon_vma lock imbalance in validate_mm(). Write lock isn't required here, read lock is enough. And reorders expand_downwards/expand_upwards: security_mmap_addr() and wrapping-around check don't have to be under anon vma lock. Link: https://lkml.kernel.org/r/CACT4Y+Y908EjM2z=706dv4rV6dWtxTLK9nFg9_7DhRMLppBo2g@mail.gmail.com Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com> Reported-by: Dmitry Vyukov <dvyukov@google.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-02-05mm, hugetlb: don't require CMA for runtime gigantic pagesVlastimil Babka
Commit 944d9fec8d7a ("hugetlb: add support for gigantic page allocation at runtime") has added the runtime gigantic page allocation via alloc_contig_range(), making this support available only when CONFIG_CMA is enabled. Because it doesn't depend on MIGRATE_CMA pageblocks and the associated infrastructure, it is possible with few simple adjustments to require only CONFIG_MEMORY_ISOLATION instead of full CONFIG_CMA. After this patch, alloc_contig_range() and related functions are available and used for gigantic pages with just CONFIG_MEMORY_ISOLATION enabled. Note CONFIG_CMA selects CONFIG_MEMORY_ISOLATION. This allows supporting runtime gigantic pages without the CMA-specific checks in page allocator fastpaths. Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Cc: Luiz Capitulino <lcapitulino@redhat.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com> Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-02-05SUNRPC: Allow addition of new transports to a struct rpc_clntTrond Myklebust
Add a function to allow creation and addition of a new transport to an existing rpc_clnt Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2016-02-05SUNRPC: Add a helper to apply a function to all the rpc_clnt's transportsTrond Myklebust
Add a helper for tasks that require us to apply a function to all the transports in an rpc_clnt. An example of a usecase would be BIND_CONN_TO_SESSION, where we want to send one RPC call down each transport. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2016-02-05SUNRPC: Allow caller to specify the transport to useTrond Myklebust
This is needed in order to allow the NFSv4.1 backchannel and BIND_CONN_TO_SESSION function to work. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2016-02-05SUNRPC: Use the multipath iterator to assign a transport to each taskTrond Myklebust
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2016-02-05SUNRPC: Make rpc_clnt store the multipath iteratorsTrond Myklebust
This is a pre-patch for the RPC multipath code. It sets up the storage in struct rpc_clnt for the multipath code. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2016-02-05SUNRPC: Add a structure to track multiple transportsTrond Myklebust
In order to support multipathing/trunking we will need the ability to track multiple transports. This patch sets up a basic structure for doing so. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2016-02-05target: Fix remote-port TMR ABORT + se_cmd fabric stopNicholas Bellinger
To address the bug where fabric driver level shutdown of se_cmd occurs at the same time when TMR CMD_T_ABORTED is happening resulting in a -1 ->cmd_kref, this patch adds a CMD_T_FABRIC_STOP bit that is used to determine when TMR + driver I_T nexus shutdown is happening concurrently. It changes target_sess_cmd_list_set_waiting() to obtain se_cmd->cmd_kref + set CMD_T_FABRIC_STOP, and drop local reference in target_wait_for_sess_cmds() and invoke extra target_put_sess_cmd() during Task Aborted Status (TAS) when necessary. Also, it adds a new target_wait_free_cmd() wrapper around transport_wait_for_tasks() for the special case within transport_generic_free_cmd() to set CMD_T_FABRIC_STOP, and is now aware of CMD_T_ABORTED + CMD_T_TAS status bits to know when an extra transport_put_cmd() during TAS is required. Note transport_generic_free_cmd() is expected to block on cmd->cmd_wait_comp in order to follow what iscsi-target expects during iscsi_conn context se_cmd shutdown. Cc: Quinn Tran <quinn.tran@qlogic.com> Cc: Himanshu Madhani <himanshu.madhani@qlogic.com> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Andy Grover <agrover@redhat.com> Cc: Mike Christie <mchristi@redhat.com> Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Nicholas Bellinger <nab@daterainc.com>
2016-02-05PCI: Remove empty asm-generic/pci-bridge.hBjorn Helgaas
include/asm-generic/pci-bridge.h is empty, and nobody includes it, so remove it. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2016-02-05PCI: Move pci_set_flags() from asm-generic/pci-bridge.h to linux/pci.hBjorn Helgaas
The PCI flag management constants and functions were previously declared in include/asm-generic/pci-bridge.h. But they are not specific to bridges, and arches did not include pci-bridge.h consistently. Move the following interfaces and related constants to include/linux/pci.h and remove pci-bridge.h: pci_set_flags() pci_add_flags() pci_clear_flags() pci_has_flag() This fixes these warnings when building for some arches: drivers/pci/host/pcie-designware.c:562:20: error: 'PCI_PROBE_ONLY' undeclared (first use in this function) drivers/pci/host/pcie-designware.c:562:7: error: implicit declaration of function 'pci_has_flag' [-Werror=implicit-function-declaration] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2016-02-05Merge tag 'media/v4.5-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media fixes from Mauro Carvalho Chehab: - vb2: fix a vb2_thread regression and DVB read() breakages - vsp1: fix compilation and links creation - s5k6a3: Fix VIDIOC_SUBDEV_G_FMT ioctl for TRY format - exynos4-is: fix a build issue, format negotiation and sensor detection - Fix a regression with pvrusb2 and ir-kbd-i2c - atmel-isi: fix debug message which only show the first format - tda1004x: fix a tuning bug if G_PROPERTY is called too early - saa7134-alsa: fix a bug at device unbinding/driver removal - Fix build of one driver if !HAS_DMA - soc_camera: cleanup control device on async_unbind * tag 'media/v4.5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: [media] saa7134-alsa: Only frees registered sound cards [media] vb2-core: call threadio->fnc() if !VB2_BUF_STATE_ERROR [media] vb2: fix nasty vb2_thread regression [media] tda1004x: only update the frontend properties if locked [media] media: i2c: Don't export ir-kbd-i2c module alias [media] exynos4-is: make VIDEO_SAMSUNG_EXYNOS4_IS tristate [media] media: Kconfig: add dependency of HAS_DMA [media] exynos4-is: Wait for 100us before opening sensor [media] exynos4-is: Open shouldn't fail when sensor entity is not linked [media] s5k6a3: Fix VIDIOC_SUBDEV_G_FMT ioctl for TRY format [media] exynos4-is: fix a format string bug [media] drivers/media: vsp1_video: fix compile error [media] atmel-isi: fix debug message which only show the first format [media] soc_camera: cleanup control device on async_unbind [media] v4l: vsp1: Fix wrong entities links creation
2016-02-05Merge tag 'sound-4.5-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "This was a busy week and I had to prepare a pile of duct tapes for the bugs reported by syzkaller fuzzer in wide range of ALSA core APIs: timer, rawmidi, sequencer, and PCM OSS emulation. Let's see how many other holes we need to plug. Besides that, a few usual boring stuff, HD- and USB-audio quirks, have been added" * tag 'sound-4.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: timer: Fix leftover link at closing ALSA: seq: Fix lockdep warnings due to double mutex locks ALSA: rawmidi: Fix race at copying & updating the position ALSA: rawmidi: Make snd_rawmidi_transmit() race-free ALSA: hda - Add fixup for Mac Mini 7,1 model ALSA: hda/realtek - Support headset mode for ALC225 ALSA: hda/realtek - Support Dell headset mode for ALC225 ALSA: hda/realtek - New codec support of ALC225 ALSA: timer: Sync timer deletion at closing the system timer ALSA: timer: Fix link corruption due to double start or stop ALSA: seq: Fix yet another races among ALSA timer accesses ALSA: pcm: Fix potential deadlock in OSS emulation ALSA: rawmidi: Remove kernel WARNING for NULL user-space buffer check ALSA: seq: Fix race at closing in virmidi driver ALSA: emu10k1: correctly handling failed thread creation ALSA: usb-audio: Add quirk for Microsoft LifeCam HD-6000 ALSA: usb-audio: Add native DSD support for PS Audio NuWave DAC ALSA: usb-audio: Fix OPPO HA-1 vendor ID
2016-02-05regulator: lp872x: Add enable GPIO pin supportPaul Kocialkowski
LP872x regulators are made active via the EN pin, which might be hooked to a GPIO. This adds support for driving the GPIO high when the driver is in use. Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-05ALSA: pcm: Add snd_pcm_rate_range_to_bits()Mengdong Lin
This helper function can convert a given sample rate range to SNDRV_PCM_RATE_xxx bits. Signed-off-by: Mengdong Lin <mengdong.lin@linux.intel.com> Acked-by: Takashi Iwai <tiwai@suse.de> Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-05reset: img: Add Pistachio reset controller driverDamien Horsley
Add reset controller driver for Pistachio SoC Signed-off-by: Damien Horsley <Damien.Horsley@imgtec.com> Signed-off-by: James Hartley <james.hartley@imgtec.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-02-04Merge remote-tracking branch 'mkp-scsi/4.5/scsi-fixes' into fixesJames Bottomley
2016-02-05Merge branch 'drm-fixes-mst' of git://people.freedesktop.org/~airlied/linux ↵Dave Airlie
into drm-fixes displayport multistream fixes from AMD. * 'drm-fixes-mst' of git://people.freedesktop.org/~airlied/linux: drm/dp/mst: deallocate payload on port destruction drm/dp/mst: Reverse order of MST enable and clearing VC payload table. drm/dp/mst: move GUID storage from mgr, port to only mst branch drm/dp/mst: change MST detection scheme drm/dp/mst: Calculate MST PBN with 31.32 fixed point drm: Add drm_fixp_from_fraction and drm_fixp2int_ceil drm/mst: Add range check for max_payloads during init drm/mst: Don't ignore the MST PBN self-test result drm: fix missing reference counting decrease
2016-02-05drm/dp/mst: move GUID storage from mgr, port to only mst branchHersen Wu
Previous implementation does not handle case below: boot up one MST branch to DP connector of ASIC. After boot up, hot plug 2nd MST branch to DP output of 1st MST, GUID is not created for 2nd MST branch. When downstream port of 2nd MST branch send upstream request, it fails because 2nd MST branch GUID is not available. New Implementation: only create GUID for MST branch and save it within Branch. Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Cc: stable@vger.kernel.org Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-02-05drm: Add drm_fixp_from_fraction and drm_fixp2int_ceilHarry Wentland
drm_fixp_from_fraction allows us to create a fixed point directly from a fraction, rather than creating fixed point values and dividing later. This avoids overflow of our 64 bit value for large numbers. drm_fixp2int_ceil allows us to return the ceiling of our fixed point value. [airlied: squash Jordan's fix] 32-bit-build-fix: Jordan Lazare <Jordan.Lazare@amd.com> Signed-off-by: Harry Wentland <harry.wentland@amd.com> Cc: stable@vger.kernel.org Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-02-05extcon: palmas: Add the support for VBUS detection by using GPIOFelipe Balbi
This patch support for VBUS detection by using GPIO pin. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Lee Jones <lee.jones@linaro.org>
2016-02-05Merge branch 'drm-fixes-4.5' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-fixes - fix and enable iceland/topaz support - handle WC on platforms that don't support it * 'drm-fixes-4.5' of git://people.freedesktop.org/~agd5f/linux: drm/amdgpu: disable uvd and vce clockgating on Fiji drm/amdgpu: remove exp hardware support from iceland drm/amdgpu: load MEC ucode manually on iceland drm/amdgpu: don't load MEC2 on topaz drm/amdgpu: drop topaz support from gmc8 module drm/amdgpu: pull topaz gmc bits into gmc_v7 drm/amdgpu: The VI specific EXE bit should only apply to GMC v8.0 above drm/amdgpu: iceland use CI based MC IP drm/amdgpu: move gmc7 support out of CIK dependency drm/amdgpu/gfx7: enable cp inst/reg error interrupts drm/amdgpu/gfx8: enable cp inst/reg error interrupts drm/amdgpu: mask out WC from BO on unsupported arches drm/radeon: mask out WC from BO on unsupported arches drm: add helper to check for wc memory support drm/amdgpu: no need to load MC firmware on fiji
2016-02-04block/sd: Return -EREMOTEIO when WRITE SAME and DISCARD are disabledMartin K. Petersen
When a storage device rejects a WRITE SAME command we will disable write same functionality for the device and return -EREMOTEIO to the block layer. -EREMOTEIO will in turn prevent DM from retrying the I/O and/or failing the path. Yiwen Jiang discovered a small race where WRITE SAME requests issued simultaneously would cause -EIO to be returned. This happened because any requests being prepared after WRITE SAME had been disabled for the device caused us to return BLKPREP_KILL. The latter caused the block layer to return -EIO upon completion. To overcome this we introduce BLKPREP_INVALID which indicates that this is an invalid request for the device. blk_peek_request() is modified to return -EREMOTEIO in that case. Reported-by: Yiwen Jiang <jiangyiwen@huawei.com> Suggested-by: Mike Snitzer <snitzer@redhat.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Reviewed-by: Ewan Milne <emilne@redhat.com> Reviewed-by: Yiwen Jiang <jiangyiwen@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-02-05cpufreq: powernv/tracing: Add powernv_throttle tracepointShilpasri G Bhat
This patch adds the powernv_throttle tracepoint to trace the CPU frequency throttling event, which is used by the powernv-cpufreq driver in POWER8. Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-02-05cpufreq: Clean up default and fallback governor setupRafael J. Wysocki
The preprocessor magic used for setting the default cpufreq governor (and for using the performance governor as a fallback one for that matter) is really nasty, so replace it with __weak functions and overrides. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Saravana Kannan <skannan@codeaurora.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
2016-02-04libceph: MOSDOpReply v7 encodingIlya Dryomov
Empty request_redirect_t (struct ceph_request_redirect in the kernel client) is now encoded with a bool. NEW_OSDOPREPLY_ENCODING feature bit overlaps with already supported CRUSH_TUNABLES5. Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Sage Weil <sage@redhat.com>
2016-02-04libceph: advertise support for TUNABLES5Ilya Dryomov
Add TUNABLES5 feature (chooseleaf_stable tunable) to a set of features supported by default. Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Sage Weil <sage@redhat.com>
2016-02-04crush: add chooseleaf_stable tunableIlya Dryomov
Add a tunable to fix the bug that chooseleaf may cause unnecessary pg migrations when some device fails. Reflects ceph.git commit fdb3f664448e80d984470f32f04e2e6f03ab52ec. Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Sage Weil <sage@redhat.com>
2016-02-04lightnvm: allow to force mm initializationMatias Bjørling
System block allows the device to initialize with its configured media manager. The system blocks is written to disk, and read again when media manager is determined. For this to work, the backend must store the data. Device drivers, such as null_blk, does not have any backend storage. This patch allows the media manager to be initialized without a storage backend. It also fix incorrect configuration of capabilities in null_blk, as it does not support get/set bad block interface. Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-02-04[media] vb2: fix nasty vb2_thread regressionHans Verkuil
The vb2_thread implementation was made generic and was moved from videobuf2-v4l2.c to videobuf2-core.c in commit af3bac1a. Unfortunately that clearly was never tested since it broke read() causing NULL address references. The root cause was confused handling of vb2_buffer vs v4l2_buffer (the pb pointer in various core functions). The v4l2_buffer no longer exists after moving the code into the core and it is no longer needed. However, the vb2_thread code passed a pointer to a vb2_buffer to the core functions were a v4l2_buffer pointer was expected and vb2_thread expected that the vb2_buffer fields would be filled in correctly. This is obviously wrong since v4l2_buffer != vb2_buffer. Note that the pb pointer is a void pointer, so no type-checking took place. This patch fixes this problem: 1) allow pb to be NULL for vb2_core_(d)qbuf. The vb2_thread code will use a NULL pointer here since they don't care about v4l2_buffer anyway. 2) let vb2_core_dqbuf pass back the index of the received buffer. This is all vb2_thread needs: this index is the index into the q->bufs array and vb2_thread just gets the vb2_buffer from there. 3) the fileio->b pointer (that originally contained a v4l2_buffer) is removed altogether since it is no longer needed. Tested with vivid and the cobalt driver. Cc: stable@vger.kernel.org # Kernel >= 4.3 Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Reported-by: Matthias Schwarzott <zzam@gentoo.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-03Merge branch 'mymd/for-next' into mymd/for-linusShaohua Li
2016-02-03target: Fix LUN_RESET active I/O handling for ACK_KREFNicholas Bellinger
This patch fixes a NULL pointer se_cmd->cmd_kref < 0 refcount bug during TMR LUN_RESET with active se_cmd I/O, that can be triggered during se_cmd descriptor shutdown + release via core_tmr_drain_state_list() code. To address this bug, add common __target_check_io_state() helper for ABORT_TASK + LUN_RESET w/ CMD_T_COMPLETE checking, and set CMD_T_ABORTED + obtain ->cmd_kref for both cases ahead of last target_put_sess_cmd() after TFO->aborted_task() -> transport_cmd_finish_abort() callback has completed. It also introduces SCF_ACK_KREF to determine when transport_cmd_finish_abort() needs to drop the second extra reference, ahead of calling target_put_sess_cmd() for the final kref_put(&se_cmd->cmd_kref). It also updates transport_cmd_check_stop() to avoid holding se_cmd->t_state_lock while dropping se_cmd device state via target_remove_from_state_list(), now that core_tmr_drain_state_list() is holding the se_device lock while checking se_cmd state from within TMR logic. Finally, move transport_put_cmd() release of SGL + TMR + extended CDB memory into target_free_cmd_mem() in order to avoid potential resource leaks in TMR ABORT_TASK + LUN_RESET code-paths. Also update target_release_cmd_kref() accordingly. Reviewed-by: Quinn Tran <quinn.tran@qlogic.com> Cc: Himanshu Madhani <himanshu.madhani@qlogic.com> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Andy Grover <agrover@redhat.com> Cc: Mike Christie <mchristi@redhat.com> Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-02-03Add ioctls to enable and disable local controls on an instrumentDave Penkler
These ioctls provide support for the USBTMC-USB488 control requests for REN_CONTROL, GO_TO_LOCAL and LOCAL_LOCKOUT Signed-off-by: Dave Penkler <dpenkler@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-03Add ioctl to retrieve USBTMC-USB488 capabilitiesDave Penkler
This is a convenience function to obtain an instrument's capabilities from its file descriptor without having to access sysfs from the user program. Signed-off-by: Dave Penkler <dpenkler@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-03Implement an ioctl to support the USMTMC-USB488 READ_STATUS_BYTE operation.Dave Penkler
Background: When performing a read on an instrument that is executing a function that runs longer than the USB timeout the instrument may hang and require a device reset to recover. The READ_STATUS_BYTE operation always returns even when the instrument is busy permitting to poll for the appropriate condition. This capability is referred to in instrument application notes on synchronizing acquisitions for other platforms. Signed-off-by: Dave Penkler <dpenkler@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-03usb/storage: misc fixes to comments in include/linux/usb/storage.hAntonio Ospite
The fixes are: - fix indentation of a comment - fix a typo in the comment about bulk_cb_wrap.Length - make comment about US_BULK_CB_SIGN look like the one about US_BULK_CS_SIGN below - make the comment about bulk_cs_wrap.Signature look more like the one about bulk_cb_wrap.Signature Signed-off-by: Antonio Ospite <ao2@ao2.it> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-03usb: sysfs: make locking interruptibleOliver Neukum
232275a USB: fix substandard locking for the sysfs files introduced needed locking into sysfs operations on USB devices It, however, uses uninterruptible sleep and if the error handling is on extreme cases of sleep lengths of 10s of seconds are possible. Unless we are removing the device we should use interruptible sleep. Signed-off-by: Oliver Neukum <oneukum@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>