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2015-10-08IB: split struct ib_send_wrChristoph Hellwig54-781/+891
This patch split up struct ib_send_wr so that all non-trivial verbs use their own structure which embedds struct ib_send_wr. This dramaticly shrinks the size of a WR for most common operations: sizeof(struct ib_send_wr) (old): 96 sizeof(struct ib_send_wr): 48 sizeof(struct ib_rdma_wr): 64 sizeof(struct ib_atomic_wr): 96 sizeof(struct ib_ud_wr): 88 sizeof(struct ib_fast_reg_wr): 88 sizeof(struct ib_bind_mw_wr): 96 sizeof(struct ib_sig_handover_wr): 80 And with Sagi's pending MR rework the fast registration WR will also be down to a reasonable size: sizeof(struct ib_fastreg_wr): 64 Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> [srp, srpt] Reviewed-by: Chuck Lever <chuck.lever@oracle.com> [sunrpc] Tested-by: Haggai Eran <haggaie@mellanox.com> Tested-by: Sagi Grimberg <sagig@mellanox.com> Tested-by: Steve Wise <swise@opengridcomputing.com>
2015-10-06IB/cma: Accept connection without a valid netdev on RoCEHaggai Eran1-14/+40
The netdev checks recently added to RDMA CM expect a valid netdev to be found for both InfiniBand and RoCE, but the code that find a netdev is only implemented for InfiniBand. Currently RoCE doesn't provide an API to find the netdev matching a given set of parameters, so this patch just disables the netdev enforcement for each incoming connections when the link layer is RoCE. Fixes: 4c21b5bcef73 ("IB/cma: Add net_dev and private data checks to RDMA CM") Reported-by: Kamal Heib <kamalh@mellanox.com> Signed-off-by: Haggai Eran <haggaie@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-06usnic: add missing clauses to BSD licenseJeff Squyres25-73/+433
The usnic_verbs kernel module was clearly marked with the following in its code: MODULE_LICENSE("Dual BSD/GPL"); However, we accidentally left a few clauses of the BSD text out of the license header in all the source files. This commit fixes that: all the files are properly dual BSD/GPL-licensed. Contributors that might have been confused by this have been contacted to get their permission and are Cc:ed here. Cc: Benoit Taine <benoit.taine@lip6.fr> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Joerg Roedel <jroedel@suse.de> Cc: Masanari Iida <standby24x7@gmail.com> Cc: Matan Barak <matanb@mellanox.com> Cc: Michael Wang <yun.wang@profitbricks.com> Cc: Roland Dreier <roland@purestorage.com> Cc: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Jeff Squyres <jsquyres@cisco.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-09-25IB/ipoib: increase the max mcast backlog queueDoug Ledford1-1/+1
When performing sendonly joins, we queue the packets that trigger the join until the join completes. This may take on the order of hundreds of milliseconds. It is easy to have many more than three packets come in during that time. Expand the maximum queue depth in order to try and prevent dropped packets during the time it takes to join the multicast group. Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-09-25IB/ipoib: Make sendonly multicast joins create the mcast groupDoug Ledford1-10/+12
Since IPoIB should, as much as possible, emulate how multicast sends work on Ethernet for regular TCP/IP apps, there should be no requirement to subscribe to a multicast group before your sends are properly sent. However, due to the difference in how multicast is handled on InfiniBand, we must join the appropriate multicast group before we can send to it. Previously we tried not to trigger the auto-create feature of the subnet manager when doing this because we didn't have tracking of these sendonly groups and the auto-creation might never get undone. The previous patch added timing to these sendonly joins and allows us to leave them after a reasonable idle expiration time. So supply all of the information needed to auto-create group. Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-09-25IB/ipoib: Expire sendonly multicast joinsChristoph Lameter3-2/+22
On neighbor expiration, check to see if the neighbor was actually a sendonly multicast join, and if so, leave the multicast group as we expire the neighbor. Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-09-25IB/mlx5: Remove pa_lkey usagesSagi Grimberg3-62/+1
Since mlx5 driver cannot rely on registration using the reserved lkey (global_dma_lkey) it used to allocate a private physical address lkey for each allocated pd. Commit 96249d70dd70 ("IB/core: Guarantee that a local_dma_lkey is available") just does it in the core layer so we can go ahead and use that. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-09-25IB/mlx5: Remove support for IB_DEVICE_LOCAL_DMA_LKEYSagi Grimberg2-31/+1
Commit 96249d70dd70 ("IB/core: Guarantee that a local_dma_lkey is available") allows ULPs that make use of the local dma key to keep working as before by allocating a DMA MR with local permissions and converted these consumers to use the MR associated with the PD rather then device->local_dma_lkey. ConnectIB has some known issues with memory registration using the local_dma_lkey (SEND, RDMA, RECV seems to work ok). Thus don't expose support for it (remove device->local_dma_lkey setting), and take advantage of the above commit such that no regression is introduced to working systems. The local_dma_lkey support will be restored in CX4 depending on FW capability query. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-09-25IB/iser: Add module parameter for always register memorySagi Grimberg4-14/+31
This module parameter forces memory registration even for a continuous memory region. It is true by default as sending an all-physical rkey with remote permissions might be insecure. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-09-19Merge tag 'pm+acpi-4.3-rc2' of ↵Linus Torvalds8-42/+42
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management and ACPI updates from Rafael Wysocki: "Included are: a somewhat late devfreq update which however is mostly fixes and cleanups with one new thing only (the PPMUv2 support on Exynos5433), an ACPI cpufreq driver fixup and two ACPI core cleanups related to preprocessor directives. Specifics: - Fix a memory allocation size in the devfreq core (Xiaolong Ye). - Fix a mistake in the exynos-ppmu DT binding (Javier Martinez Canillas). - Add support for PPMUv2 ((Platform Performance Monitoring Unit version 2.0) on the Exynos5433 SoCs (Chanwoo Choi). - Fix a type casting bug in the Exynos PPMU code (MyungJoo Ham). - Assorted devfreq code cleanups and optimizations (Javi Merino, MyungJoo Ham, Viresh Kumar). - Fix up the ACPI cpufreq driver to use a more lightweight way to get to its private data in the ->get() callback (Rafael J Wysocki). - Fix a CONFIG_ prefix bug in one of the ACPI drivers and make the ACPI subsystem use IS_ENABLED() instead of #ifdefs in function bodies (Sudeep Holla)" * tag 'pm+acpi-4.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: cpufreq: acpi-cpufreq: Use cpufreq_cpu_get_raw() in ->get() ACPI: Eliminate CONFIG_.*{, _MODULE} #ifdef in favor of IS_ENABLED() ACPI: int340x_thermal: add missing CONFIG_ prefix PM / devfreq: Fix incorrect type issue. PM / devfreq: tegra: Update governor to use devfreq_update_stats() PM / devfreq: comments for get_dev_status usage updated PM / devfreq: drop comment about thermal setting max_freq PM / devfreq: cache the last call to get_dev_status() PM / devfreq: Drop unlikely before IS_ERR(_OR_NULL) PM / devfreq: exynos-ppmu: bit-wise operation bugfix. PM / devfreq: exynos-ppmu: Update documentation to support PPMUv2 PM / devfreq: exynos-ppmu: Add the support of PPMUv2 for Exynos5433 PM / devfreq: event: Remove incorrect property in exynos-ppmu DT binding
2015-09-19Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds5-12/+25
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk fixes from Stephen Boyd: "A few driver fixes for tegra, rockchip, and st SoCs and a two-liner in the framework to avoid oops when get_parent ops return out of range values on tegra platforms" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: drivers: clk: st: Rename st_pll3200c32_407_c0_x into st_pll3200c32_cx_x clk: check for invalid parent index of orphans in __clk_init() clk: tegra: dfll: Properly protect OPP list clk: rockchip: add critical clock for rk3368
2015-09-19Merge tag 'led-fixes-for-v4.3-rc2' of ↵Linus Torvalds7-2/+9
git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds Pull LED fixes from Jacek Anaszewski: - fix module autoload for six OF platform drivers (aat1290, bcm6328, bcm6358, ktd2692, max77693, ns2) - aat1290: add missing static modifier - ipaq-micro: add missing LEDS_CLASS dependency - lp55xx: correct Kconfig dependecy for f/w user helper * tag 'led-fixes-for-v4.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds: leds:lp55xx: Correct Kconfig dependency for f/w user helper leds: leds-ipaq-micro: Add LEDS_CLASS dependency leds: aat1290: add 'static' modifier to init_mm_current_scale leds: leds-ns2: Fix module autoload for OF platform driver leds: max77693: Fix module autoload for OF platform driver leds: ktd2692: Fix module autoload for OF platform driver leds: bcm6358: Fix module autoload for OF platform driver leds: bcm6328: Fix module autoload for OF platform driver leds: aat1290: Fix module autoload for OF platform driver
2015-09-19Merge tag 'for-linus' of ↵Linus Torvalds9-56/+105
git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma fixes from Doug Ledford: "The new hfi1 driver in staging/rdma has had a number of fixup patches since being added to the tree. This is the first batch of those fixes" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: IB/hfi: Properly set permissions for user device files IB/hfi1: mask vs shift confusion IB/hfi1: clean up some defines IB/hfi1: info leak in get_ctxt_info() IB/hfi1: fix a locking bug IB/hfi1: checking for NULL instead of IS_ERR IB/hfi1: fix sdma_descq_cnt parameter parsing IB/hfi1: fix copy_to/from_user() error handling IB/hfi1: fix pstateinfo from returning improperly byteswapped value
2015-09-19Merge branch 'libnvdimm-fixes' of ↵Linus Torvalds3-4/+6
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm fixes from Dan Williams: - a boot regression (since v4.2) fix for some ARM configurations from Tyler - regression (since v4.1) fixes for mkfs.xfs on a DAX enabled device from Jeff. These are tagged for -stable. - a pair of locking fixes from Axel that are hidden from lockdep since they involve device_lock(). The "btt" one is tagged for -stable, the other only applies to the new "pfn" mechanism in v4.3. - a fix for the pmem ->rw_page() path to use wmb_pmem() from Ross. * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: mm: fix type cast in __pfn_to_phys() pmem: add proper fencing to pmem_rw_page() libnvdimm: pfn_devs: Fix locking in namespace_store libnvdimm: btt_devs: Fix locking in namespace_store blockdev: don't set S_DAX for misaligned partitions dax: fix O_DIRECT I/O to the last block of a blockdev
2015-09-19Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds1-18/+18
Pull block updates from Jens Axboe: "This is a bit bigger than it should be, but I could (did) not want to send it off last week due to both wanting extra testing, and expecting a fix for the bounce regression as well. In any case, this contains: - Fix for the blk-merge.c compilation warning on gcc 5.x from me. - A set of back/front SG gap merge fixes, from me and from Sagi. This ensures that we honor SG gapping for integrity payloads as well. - Two small fixes for null_blk from Matias, fixing a leak and a capacity propagation issue. - A blkcg fix from Tejun, fixing a NULL dereference. - A fast clone optimization from Ming, fixing a performance regression since the arbitrarily sized bio's were introduced. - Also from Ming, a regression fix for bouncing IOs" * 'for-linus' of git://git.kernel.dk/linux-block: block: fix bounce_end_io block: blk-merge: fast-clone bio when splitting rw bios block: blkg_destroy_all() should clear q->root_blkg and ->root_rl.blkg block: Copy a user iovec if it includes gaps block: Refuse adding appending a gapped integrity page to a bio block: Refuse request/bio merges with gaps in the integrity payload block: Check for gaps on front and back merges null_blk: fix wrong capacity when bs is not 512 bytes null_blk: fix memory leak on cleanup block: fix bogus compiler warnings in blk-merge.c
2015-09-18Merge branch 'acpi-bus'Rafael J. Wysocki2-13/+8
* acpi-bus: ACPI: Eliminate CONFIG_.*{, _MODULE} #ifdef in favor of IS_ENABLED() ACPI: int340x_thermal: add missing CONFIG_ prefix
2015-09-18Merge branches 'pm-cpufreq' and 'pm-devfreq'Rafael J. Wysocki6-29/+34
* pm-cpufreq: cpufreq: acpi-cpufreq: Use cpufreq_cpu_get_raw() in ->get() * pm-devfreq: PM / devfreq: Fix incorrect type issue. PM / devfreq: tegra: Update governor to use devfreq_update_stats() PM / devfreq: comments for get_dev_status usage updated PM / devfreq: drop comment about thermal setting max_freq PM / devfreq: cache the last call to get_dev_status() PM / devfreq: Drop unlikely before IS_ERR(_OR_NULL) PM / devfreq: exynos-ppmu: bit-wise operation bugfix. PM / devfreq: exynos-ppmu: Update documentation to support PPMUv2 PM / devfreq: exynos-ppmu: Add the support of PPMUv2 for Exynos5433 PM / devfreq: event: Remove incorrect property in exynos-ppmu DT binding
2015-09-18Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds5-7/+17
Pull virtio fixes and cleanups from Michael Tsirkin: "This fixes the virtio-test tool, and improves the error handling for virtio-ccw" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: virtio/s390: handle failures of READ_VQ_CONF ccw tools/virtio: propagate V=X to kernel build vhost: move features to core tools/virtio: fix build after 4.2 changes
2015-09-18IB/hfi: Properly set permissions for user device filesIra Weiny4-12/+59
Some of the device files are required to be user accessible for PSM while most should remain accessible only by root. Add a parameter to hfi1_cdev_init which controls if the user should have access to this device which places it in a different class with the appropriate devnode callback. In addition set the devnode call back for the existing class to be a bit more explicit for those permissions. Finally remove the unnecessary null check before class_destroy Tested-by: Donald Dutile <ddutile@redhat.com> Signed-off-by: Haralanov, Mitko (mitko.haralanov@intel.com) Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-09-18IB/hfi1: mask vs shift confusionDan Carpenter1-2/+2
We are shifting by the _MASK macros instead of the _SHIFT ones. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-09-18IB/hfi1: clean up some definesDan Carpenter1-18/+18
I added spaces around operators so it matches kernel style because normally "-1ULL" is a number and " - 1" is a subtract operation. Also removed some superflous "ULL" types so "1ULL" becomes "1". Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-09-18IB/hfi1: info leak in get_ctxt_info()Dan Carpenter1-0/+1
The cinfo struct has a hole after the last struct member so we need to zero it out. Otherwise we disclose some uninitialized stack data. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-09-18IB/hfi1: fix a locking bugDan Carpenter1-2/+2
mutex_trylock() returns zero on failure, not EBUSY. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-09-18IB/hfi1: checking for NULL instead of IS_ERRDan Carpenter1-3/+5
__get_txreq() returns an ERR_PTR() but this checks for NULL so it would oops on failure. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-09-18IB/hfi1: fix sdma_descq_cnt parameter parsingMike Marciniszyn1-1/+1
The boolean tests should have been or-ed. Reported-by: David Binderman <dcb314@hotmail.com> Reviewed-by: Jubin John <jubin.john@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-09-18IB/hfi1: fix copy_to/from_user() error handlingDan Carpenter1-16/+15
copy_to/from_user() returns the number of bytes which we were not able to copy. It doesn't return an error code. Also a couple places had a printk() on error and I removed that because people can take advantage of it to fill /var/log/messages with spam. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-09-18IB/hfi1: fix pstateinfo from returning improperly byteswapped valueIra Weiny1-2/+2
Byteswap link_width_downgrade_*_active values before sending on the wire. In addition properly define the Port State Info structure. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Christian Gomez <christian.gomez@intel.com> Signed-off-by: Rimmer, Todd <todd.rimmer@intel.com> Signed-off-by: Ira Weiny <ira.weiny@intel.com> Acked-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-09-18Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds98-250/+234
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq updates from Thomas Gleixner: "This is a rather large update post rc1 due to the final steps of cleanups and API changes which had to wait for the preparatory patches to hit your tree. - Regression fixes for ARM GIC irqchips - Regression fixes and lockdep anotations for renesas irq chips - The leftovers of the cleanup and preparatory patches which have been ignored by maintainers - Final conversions of the newly merged users of obsolete APIs - Final removal of obsolete APIs - Final removal of ARM artifacts which had been introduced during the conversion of ARM to the generic interrupt code. - Final split of the irq_data into chip specific and common data to reflect the needs of hierarchical irq domains. - Treewide removal of the first argument of interrupt flow handlers, i.e. the irq number, which is not used by the majority of handlers and simple to retrieve from the other argument the irq descriptor. - A few comment updates and build warning fixes" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (40 commits) arm64: Remove ununsed set_irq_flags ARM: Remove ununsed set_irq_flags sh: Kill off set_irq_flags usage irqchip: Kill off set_irq_flags usage gpu/drm: Kill off set_irq_flags usage genirq: Remove irq argument from irq flow handlers genirq: Move field 'msi_desc' from irq_data into irq_common_data genirq: Move field 'affinity' from irq_data into irq_common_data genirq: Move field 'handler_data' from irq_data into irq_common_data genirq: Move field 'node' from irq_data into irq_common_data irqchip/gic-v3: Use IRQD_FORWARDED_TO_VCPU flag irqchip/gic: Use IRQD_FORWARDED_TO_VCPU flag genirq: Provide IRQD_FORWARDED_TO_VCPU status flag genirq: Simplify irq_data_to_desc() genirq: Remove __irq_set_handler_locked() pinctrl/pistachio: Use irq_set_handler_locked gpio: vf610: Use irq_set_handler_locked powerpc/mpc8xx: Use irq_set_handler_locked() powerpc/ipic: Use irq_set_handler_locked() powerpc/cpm2: Use irq_set_handler_locked() ...
2015-09-18Merge tag 'powerpc-4.3-2' of ↵Linus Torvalds3-3/+7
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: - Fix 32-bit TCE table init in kdump kernel from Nish - Fix kdump with non-power-of-2 crashkernel= from Nish - Abort cxl_pci_enable_device_hook() if PCI channel is offline from Andrew - Fix to release DRC when configure_connector() fails from Bharata - Wire up sys_userfaultfd() - Fix race condition in tearing down MSI interrupts from Paul - Fix unbalanced pci_dev_get() in cxl_probe() from Daniel - Fix cxl build failure due to -Wunused-variable gcc behaviour change from Ian - Tell the toolchain to use ABI v2 when building an LE boot wrapper from Benh - Fix THP to recompute hash value after a failed update from Aneesh - 32-bit memcpy/memset: only use dcbz once cache is enabled from Christophe * tag 'powerpc-4.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc32: memset: only use dcbz once cache is enabled powerpc32: memcpy: only use dcbz once cache is enabled powerpc/mm: Recompute hash value after a failed update powerpc/boot: Specify ABI v2 when building an LE boot wrapper cxl: Fix build failure due to -Wunused-variable behaviour change cxl: Fix unbalanced pci_dev_get in cxl_probe powerpc/MSI: Fix race condition in tearing down MSI interrupts powerpc: Wire up sys_userfaultfd() powerpc/pseries: Release DRC when configure_connector fails cxl: abort cxl_pci_enable_device_hook() if PCI channel is offline powerpc/powernv/pci-ioda: fix kdump with non-power-of-2 crashkernel= powerpc/powernv/pci-ioda: fix 32-bit TCE table init in kdump kernel
2015-09-17Merge tag 'platform-drivers-x86-v4.3-2' of ↵Linus Torvalds4-62/+48
git://git.infradead.org/users/dvhart/linux-platform-drivers-x86 Pull x86 platform driver fixes from Darren Hart: "Fix an issue introduced by the previous major toshiba rework. Add a quirk. Workaround a few platform specific firmware items. One cleanup to wmi I inadvertently dropped from a previous pull request. Details: hp-wmi: - limit hotkey enable toshiba_acpi: - Fix hotkeys registration on some toshiba models - Fix USB Sleep and Music always disabled wmi: - Remove private %pUL implementation asus-nb-wmi: - Add wapf=4 quirk for X456UA/X456UF" * tag 'platform-drivers-x86-v4.3-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: hp-wmi: limit hotkey enable toshiba_acpi: Fix hotkeys registration on some toshiba models toshiba_acpi: Fix USB Sleep and Music always disabled wmi: Remove private %pUL implementation asus-nb-wmi: Add wapf=4 quirk for X456UA/X456UF
2015-09-17Merge branch 'akpm' (patches from Andrew)Linus Torvalds1-5/+7
Merge misc fixes from ANdrew Morton: "8 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: revert "mm: make sure all file VMAs have ->vm_ops set" MAINTAINERS: update LTP mailing list userfaultfd: add missing mmput() in error path lib/string_helpers.c: fix infinite loop in string_get_size() alpha: lib: export __delay alpha: io: define ioremap_uc kasan: fix last shadow judgement in memory_is_poisoned_16() zram: fix possible use after free in zcomp_create()
2015-09-17zram: fix possible use after free in zcomp_create()Luis Henriques1-5/+7
zcomp_create() verifies the success of zcomp_strm_{multi,single}_create() through comp->stream, which can potentially be pointing to memory that was freed if these functions returned an error. While at it, replace a 'ERR_PTR(-ENOMEM)' by a more generic 'ERR_PTR(error)' as in the future zcomp_strm_{multi,siggle}_create() could return other error codes. Function documentation updated accordingly. Fixes: beca3ec71fe5 ("zram: add multi stream functionality") Signed-off-by: Luis Henriques <luis.henriques@canonical.com> Acked-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Acked-by: Minchan Kim <minchan@kernel.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-09-17hp-wmi: limit hotkey enableKyle Evans1-11/+20
Do not write initialize magic on systems that do not have feature query 0xb. Fixes Bug #82451. Redefine FEATURE_QUERY to align with 0xb and FEATURE2 with 0xd for code clearity. Add a new test function, hp_wmi_bios_2008_later() & simplify hp_wmi_bios_2009_later(), which fixes a bug in cases where an improper value is returned. Probably also fixes Bug #69131. Add missing __init tag. Signed-off-by: Kyle Evans <kvans32@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-09-17Merge tag 'for-v4.3-rc' of ↵Linus Torvalds1-6/+2
git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply Pull power supply fixes from Sebastian Reichel: "twl4030-charger fixes" * tag 'for-v4.3-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: twl4030_charger: fix another compile error Revert "twl4030_charger: correctly handle -EPROBE_DEFER from devm_usb_get_phy_by_node"
2015-09-17drivers: clk: st: Rename st_pll3200c32_407_c0_x into st_pll3200c32_cx_xGabriel Fernandez2-10/+10
Use a generic name for this kind of PLL Correction in dts files are already done here: commit 5eb26c605909 ("ARM: STi: DT: Rename st_pll3200c32_407_c0_x into st_pll3200c32_cx_x") Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-17pmem: add proper fencing to pmem_rw_page()Ross Zwisler1-0/+2
pmem_rw_page() needs to call wmb_pmem() on writes to make sure that the newly written data is durable. This flow was added to pmem_rw_bytes() and pmem_make_request() with this commit: commit 61031952f4c8 ("arch, x86: pmem api for ensuring durability of persistent memory updates") ...the pmem_rw_page() path was missed. Cc: <stable@vger.kernel.org> Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2015-09-17libnvdimm: pfn_devs: Fix locking in namespace_storeAxel Lin1-2/+2
Always take device_lock() before nvdimm_bus_lock() to prevent deadlock. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2015-09-17libnvdimm: btt_devs: Fix locking in namespace_storeAxel Lin1-2/+2
Always take device_lock() before nvdimm_bus_lock() to prevent deadlock. Cc: <stable@vger.kernel.org> Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2015-09-17leds:lp55xx: Correct Kconfig dependency for f/w user helperTakashi Iwai1-1/+1
The commit [b67893206fc0: leds:lp55xx: fix firmware loading error] tries to address the firmware file handling with user helper, but it sets a wrong Kconfig CONFIG_FW_LOADER_USER_HELPER_FALLBACK. Since the wrong option was enabled, the system got a regression -- it suffers from the unexpected long delays for non-present firmware files. This patch corrects the Kconfig dependency to the right one, CONFIG_FW_LOADER_USER_HELPER. This doesn't change the fallback behavior but only enables UMH when needed. Bugzilla: https://bugzilla.opensuse.org/show_bug.cgi?id=944661 Fixes: b67893206fc0 ('leds:lp55xx: fix firmware loading error') Cc: <stable@vger.kernel.org> # v4.2+ Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2015-09-17leds: leds-ipaq-micro: Add LEDS_CLASS dependencyJacek Anaszewski1-0/+1
Fix missing Kconfig LEDS_CLASS dependency. Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
2015-09-17leds: aat1290: add 'static' modifier to init_mm_current_scaleJacek Anaszewski1-1/+1
Function init_mm_current_scale is used only locally. Make it static then. Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2015-09-17leds: leds-ns2: Fix module autoload for OF platform driverLuis de Bethencourt1-0/+1
This platform driver has a OF device ID table but the OF module alias information is not created so module autoloading won't work. Signed-off-by: Luis de Bethencourt <luis@debethencourt.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2015-09-17leds: max77693: Fix module autoload for OF platform driverLuis de Bethencourt1-0/+1
This platform driver has a OF device ID table but the OF module alias information is not created so module autoloading won't work. Signed-off-by: Luis de Bethencourt <luis@debethencourt.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2015-09-17leds: ktd2692: Fix module autoload for OF platform driverLuis de Bethencourt1-0/+1
This platform driver has a OF device ID table but the OF module alias information is not created so module autoloading won't work. Signed-off-by: Luis de Bethencourt <luis@debethencourt.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2015-09-17leds: bcm6358: Fix module autoload for OF platform driverLuis de Bethencourt1-0/+1
This platform driver has a OF device ID table but the OF module alias information is not created so module autoloading won't work. Signed-off-by: Luis de Bethencourt <luis@debethencourt.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2015-09-17leds: bcm6328: Fix module autoload for OF platform driverLuis de Bethencourt1-0/+1
This platform driver has a OF device ID table but the OF module alias information is not created so module autoloading won't work. Signed-off-by: Luis de Bethencourt <luis@debethencourt.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2015-09-17leds: aat1290: Fix module autoload for OF platform driverLuis de Bethencourt1-0/+1
This platform driver has a OF device ID table but the OF module alias information is not created so module autoloading won't work. Signed-off-by: Luis de Bethencourt <luis@debethencourt.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2015-09-16clk: check for invalid parent index of orphans in __clk_init()Mans Rullgard1-1/+2
If a mux clock is initialised (by hardware or firmware) with an invalid parent, its ->get_parent() can return an out of range index. For example, the generic mux clock attempts to return -EINVAL, which due to the u8 return type ends up a rather large number. Using this index with the parent_names[] array results in an invalid pointer and (usually) a crash in the following strcmp(). This patch adds a check for the parent index being in range, ignoring clocks reporting invalid values. Signed-off-by: Mans Rullgard <mans@mansr.com> Tested-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-16clk: tegra: dfll: Properly protect OPP listThierry Reding1-1/+7
The OPP list needs to be protected against concurrent accesses. Using simple RCU read locks does the trick and gets rid of the following lockdep warning: =============================== [ INFO: suspicious RCU usage. ] 4.2.0-next-20150908 #1 Not tainted ------------------------------- drivers/base/power/opp.c:460 Missing rcu_read_lock() or dev_opp_list_lock protection! other info that might help us debug this: rcu_scheduler_active = 1, debug_locks = 0 4 locks held by kworker/u8:0/6: #0: ("%s""deferwq"){++++.+}, at: [<c0040d8c>] process_one_work+0x118/0x4bc #1: (deferred_probe_work){+.+.+.}, at: [<c0040d8c>] process_one_work+0x118/0x4bc #2: (&dev->mutex){......}, at: [<c03b8194>] __device_attach+0x20/0x118 #3: (prepare_lock){+.+...}, at: [<c054bc08>] clk_prepare_lock+0x10/0xf8 stack backtrace: CPU: 2 PID: 6 Comm: kworker/u8:0 Not tainted 4.2.0-next-20150908 #1 Hardware name: NVIDIA Tegra SoC (Flattened Device Tree) Workqueue: deferwq deferred_probe_work_func [<c001802c>] (unwind_backtrace) from [<c00135a4>] (show_stack+0x10/0x14) [<c00135a4>] (show_stack) from [<c02a8418>] (dump_stack+0x94/0xd4) [<c02a8418>] (dump_stack) from [<c03c6f6c>] (dev_pm_opp_find_freq_ceil+0x108/0x114) [<c03c6f6c>] (dev_pm_opp_find_freq_ceil) from [<c0551a3c>] (dfll_calculate_rate_request+0xb8/0x170) [<c0551a3c>] (dfll_calculate_rate_request) from [<c0551b10>] (dfll_clk_round_rate+0x1c/0x2c) [<c0551b10>] (dfll_clk_round_rate) from [<c054de2c>] (clk_calc_new_rates+0x1b8/0x228) [<c054de2c>] (clk_calc_new_rates) from [<c054e44c>] (clk_core_set_rate_nolock+0x44/0xac) [<c054e44c>] (clk_core_set_rate_nolock) from [<c054e4d8>] (clk_set_rate+0x24/0x34) [<c054e4d8>] (clk_set_rate) from [<c0512460>] (tegra124_cpufreq_probe+0x120/0x230) [<c0512460>] (tegra124_cpufreq_probe) from [<c03b9cbc>] (platform_drv_probe+0x44/0xac) [<c03b9cbc>] (platform_drv_probe) from [<c03b84c8>] (driver_probe_device+0x218/0x304) [<c03b84c8>] (driver_probe_device) from [<c03b69b0>] (bus_for_each_drv+0x60/0x94) [<c03b69b0>] (bus_for_each_drv) from [<c03b8228>] (__device_attach+0xb4/0x118) ata1: SATA link down (SStatus 0 SControl 300) [<c03b8228>] (__device_attach) from [<c03b77c8>] (bus_probe_device+0x88/0x90) [<c03b77c8>] (bus_probe_device) from [<c03b7be8>] (deferred_probe_work_func+0x58/0x8c) [<c03b7be8>] (deferred_probe_work_func) from [<c0040dfc>] (process_one_work+0x188/0x4bc) [<c0040dfc>] (process_one_work) from [<c004117c>] (worker_thread+0x4c/0x4f4) [<c004117c>] (worker_thread) from [<c0047230>] (kthread+0xe4/0xf8) [<c0047230>] (kthread) from [<c000f7d0>] (ret_from_fork+0x14/0x24) Signed-off-by: Thierry Reding <treding@nvidia.com> Fixes: c4fe70ada40f ("clk: tegra: Add closed loop support for the DFLL") [vince.h@nvidia.com: Unlock rcu on error path] Signed-off-by: Vince Hsu <vince.h@nvidia.com> [sboyd@codeaurora.org: Dropped second hunk that nested the rcu read lock unnecessarily] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-16Merge tag 'for-linus' of ↵Linus Torvalds36-3/+9
git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma driver move from Doug Ledford: "This is a move only, no functional changes. I tried to get it in prior to the rc1 release, but we were waiting on IBM to get back to us that they were OK with the deprecation and eventual removal of this driver. That OK didn't materialize until last week, so integration and testing time pushed us beyond the rc1 release. Summary: - Move ehca driver to staging/rdma and schedule for deletion" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: IB/ehca: Deprecate driver, move to staging, schedule deletion