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2016-02-21dm: fix dm_rq_target_io leak on faults with .request_fn DM w/ blk-mq pathsMike Snitzer1-0/+2
Using request-based DM mpath configured with the following stacking (.request_fn DM mpath ontop of scsi-mq paths): echo Y > /sys/module/scsi_mod/parameters/use_blk_mq echo N > /sys/module/dm_mod/parameters/use_blk_mq 'struct dm_rq_target_io' would leak if a request is requeued before a blk-mq clone is allocated (or fails to allocate). free_rq_tio() wasn't being called. kmemleak reported: unreferenced object 0xffff8800b90b98c0 (size 112): comm "kworker/7:1H", pid 5692, jiffies 4295056109 (age 78.589s) hex dump (first 32 bytes): 00 d0 5c 2c 03 88 ff ff 40 00 bf 01 00 c9 ff ff ..\,....@....... e0 d9 b1 34 00 88 ff ff 00 00 00 00 00 00 00 00 ...4............ backtrace: [<ffffffff81672b6e>] kmemleak_alloc+0x4e/0xb0 [<ffffffff811dbb63>] kmem_cache_alloc+0xc3/0x1e0 [<ffffffff8117eae5>] mempool_alloc_slab+0x15/0x20 [<ffffffff8117ec1e>] mempool_alloc+0x6e/0x170 [<ffffffffa00029ac>] dm_old_prep_fn+0x3c/0x180 [dm_mod] [<ffffffff812fbd78>] blk_peek_request+0x168/0x290 [<ffffffffa0003e62>] dm_request_fn+0xb2/0x1b0 [dm_mod] [<ffffffff812f66e3>] __blk_run_queue+0x33/0x40 [<ffffffff812f9585>] blk_delay_work+0x25/0x40 [<ffffffff81096fff>] process_one_work+0x14f/0x3d0 [<ffffffff81097715>] worker_thread+0x125/0x4b0 [<ffffffff8109ce88>] kthread+0xd8/0xf0 [<ffffffff8167cb8f>] ret_from_fork+0x3f/0x70 [<ffffffffffffffff>] 0xffffffffffffffff crash> struct -o dm_rq_target_io struct dm_rq_target_io { ... } SIZE: 112 Fixes: e5863d9ad7 ("dm: allocate requests in target when stacking on blk-mq devices") Cc: stable@vger.kernel.org # 4.0+ Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2016-02-21power: bq27xxx_battery: Restore device nameIvaylo Dimitrov1-3/+34
Patch <703df6c09795> ("power: bq27xxx_battery: Reorganize I2C into a module") has removed the device name numbering from bq27xxx_battery_i2c_probe. Fix that by restoring the code. Fixes: 703df6c097956d17a818e63961c82e8e9eef9fef Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> Reviewed-by: Pali Rohár <pali.rohar@gmail.com> Tested-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2016-02-21can: ems_usb: Fix possible tx overflowGerhard Uttenthaler1-4/+10
This patch fixes the problem that more CAN messages could be sent to the interface as could be send on the CAN bus. This was more likely for slow baud rates. The sleeping _start_xmit was woken up in the _write_bulk_callback. Under heavy TX load this produced another bulk transfer without checking the free_slots variable and hence caused the overflow in the interface. Signed-off-by: Gerhard Uttenthaler <uttenthaler@ems-wuensche.com> Cc: linux-stable <stable@vger.kernel.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2016-02-20Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds3-61/+120
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "This is unusually large, partly due to the EFI fixes that prevent accidental deletion of EFI variables through efivarfs that may brick machines. These fixes are somewhat involved to maintain compatibility with existing install methods and other usage modes, while trying to turn off the 'rm -rf' bricking vector. Other fixes are for large page ioremap()s and for non-temporal user-memcpy()s" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm: Fix vmalloc_fault() to handle large pages properly hpet: Drop stale URLs x86/uaccess/64: Handle the caching of 4-byte nocache copies properly in __copy_user_nocache() x86/uaccess/64: Make the __copy_user_nocache() assembly code more readable lib/ucs2_string: Correct ucs2 -> utf8 conversion efi: Add pstore variables to the deletion whitelist efi: Make efivarfs entries immutable by default efi: Make our variable validation list include the guid efi: Do variable name validation tests in utf8 efi: Use ucs2_as_utf8 in efivarfs instead of open coding a bad version lib/ucs2_string: Add ucs2 -> utf8 helper functions
2016-02-20Merge tag 'dmaengine-fix-4.5-rc5' of ↵Linus Torvalds4-18/+76
git://git.infradead.org/users/vkoul/slave-dma Pull dmaengine fixes from Vinod Koul: "A few fixes for drivers, nothing major here. Fixes are: iotdma fix to restart channels, new ID for wildcat PCH, residue fix for edma, disable irq for non-cyclic in dw" * tag 'dmaengine-fix-4.5-rc5' of git://git.infradead.org/users/vkoul/slave-dma: dmaengine: dw: disable BLOCK IRQs for non-cyclic xfer dmaengine: edma: fix residue race for cyclic dmaengine: dw: pci: add ID for WildcatPoint PCH dmaengine: IOATDMA: fix timer code that continues to restart channels during idle
2016-02-20Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds24-140/+136
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk driver fixes from Stephen Boyd: "An assortment of vendor specific clk drivers fixes, most notably fallout from adding Tegra210 and rockchip rk3036/rk3368 drivers this cycle. There's also the random smattering of sparse/checker fixes, a build "fix" to get the Tango clk driver to compile because the Kconfig symbol was renamed after the fact, and a clk gpio fix for a patch mismerge" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (28 commits) clk: gpio: Really allow an optional clock= DT property Revert "clk: qcom: Specify LE device endianness" clk: versatile: mask VCO bits before writing clk: tegra: super: Fix sparse warnings for functions not declared as static clk: tegra: Fix sparse warnings for functions not declared as static clk: tegra: Fix sparse warning for pll_m clk: tegra: Use definition for pll_u override bit clk: tegra: Fix warning caused by pll_u failing to lock clk: tegra: Fix clock sources for Tegra210 EMC clk: tegra: Add the APB2APE audio clock on Tegra210 clk: tegra: Add missing of_node_put() clk: tegra: Fix PLLE SS coefficients clk: tegra: Fix typos around clearing PLLE bits during enable clk: tegra: Do not disable PLLE when under hardware control clk: tegra: Fix pllx dyn step calculation clk: tegra: pll: Fix potential sleeping-while-atomic clk: tegra: Fix the misnaming of nvenc from msenc clk: tegra: Fix naming of MISC registers clk: tango4: rename ARCH_TANGOX to ARCH_TANGO clk: scpi: Fix checking return value of platform_device_register_simple() ...
2016-02-20Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds15-123/+177
Pull more drm fixes from Dave Airlie: "Some more fixes trickled in: A bunch of VC4 ones since it's a pretty new driver not much chance of regressions, and it fixes GPU resets. Also one atomic fix, one set of fixes for a common bug in TTM cleanup, and one i915 hotplug fix" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/nouveau: use post-decrement in error handling drm/atomic: Allow for holes in connector state, v2. drm/i915: Fix hpd live status bits for g4x drm/vc4: Use runtime PM to power cycle the device when the GPU hangs. drm/vc4: Enable runtime PM. drm/vc4: Fix spurious GPU resets due to BO reuse. drm/vc4: Drop error message on seqno wait timeouts. drm/vc4: Fix -ERESTARTSYS error return from BO waits. drm/vc4: Return an ERR_PTR from BO creation instead of NULL. drm/vc4: Fix the clear color for the first tile rendered. drm/vc4: Validate that WAIT_BO padding is cleared. drm/radeon: use post-decrement in error handling drm/amdgpu: use post-decrement in error handling
2016-02-19net: bcmgenet: Fix internal PHY link stateJaedon Shin1-2/+1
The PHY link state is not chaged in GENETv2 caused by the previous commit 49f7a471e4d1 ("net: bcmgenet: Properly configure PHY to ignore interrupt") was set to PHY_IGNORE_INTERRUPT in bcmgenet_mii_probe(). The internal PHY should use phy_mac_interrupt() when not in use PHY_POLL. The statement for phy_mac_interrupt() has two conditions. The first condition to check GENET_HAS_MDIO_INTR is not related PHY link state, so this patch removes it. Fixes: 49f7a471e4d1 ("net: bcmgenet: Properly configure PHY to ignore interrupt") Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-19bnxt_en: Failure to update PHY is not fatal condition.Michael Chan1-1/+1
If we fail to update the PHY, we should print a warning and continue. The current code to exit is buggy as it has not freed up the NIC resources yet. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-19bnxt_en: Remove unnecessary call to update PHY settings.Michael Chan1-4/+2
Fix bnxt_update_phy_setting() to check the correct parameters when determining whether to update the PHY. Requested line speed/duplex should only be checked for forced speed mode. This avoids unnecessary link interruptions when loading the driver. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-19bnxt_en: Poll link at the end of __bnxt_open_nic().Michael Chan1-0/+1
When shutting down the NIC, we shutdown async event processing before freeing all the rings. If there is a link change event during reset, the driver may miss it and the link state may be incorrect after the NIC is re-opened. Poll the link at the end of __bnxt_open_nic() to get the correct link status. Signed-off-by Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-19hwmon: (gpio-fan) Remove un-necessary speed_index lookup for thermal hookNishanth Menon1-6/+1
Thermal hook gpio_fan_get_cur_state is only interested in knowing the current speed index that was setup in the system, this is already available as part of fan_data->speed_index which is always set by set_fan_speed. Using get_fan_speed_index is useful when we have no idea about the fan speed configuration (for example during fan_ctrl_init). When thermal framework invokes gpio_fan_get_cur_state=>get_fan_speed_index via gpio_fan_get_cur_state especially in a polled configuration for thermal governor, we basically hog the i2c interface to the extent that other functions fail to get any traffic out :(. Instead, just provide the last state set in the driver - since the gpio fan driver is responsible for the fan state immaterial of override, the fan_data->speed_index should accurately reflect the state. Fixes: b5cf88e46bad ("(gpio-fan): Add thermal control hooks") Reported-by: Tony Lindgren <tony@atomide.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Eduardo Valentin <edubezval@gmail.com> Signed-off-by: Nishanth Menon <nm@ti.com> Cc: stable@vger.kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-02-19libnvdimm, tools/testing/nvdimm: fix 'ars_status' output buffer sizingDan Williams2-10/+11
Use the output length specified in the command to size the receive buffer rather than the arbitrary 4K limit. This bug was hiding the fact that the ndctl implementation of ndctl_bus_cmd_new_ars_status() was not specifying an output buffer size. Cc: <stable@vger.kernel.org> Cc: Vishal Verma <vishal.l.verma@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2016-02-19drm/amdgpu: Don't hang in amdgpu_flip_work_func on disabled crtc.Mario Kleiner1-3/+15
This fixes a regression introduced in Linux 4.4. This is a port of the same fix for radeon-kms in the patch "drm/radeon: Don't hang in radeon_flip_work_func on disabled crtc. (v2)" Limit the amount of time amdgpu_flip_work_func can delay programming a page flip, by both limiting the maximum amount of time per wait cycle and the maximum number of wait cycles. Continue the flip if the limit is exceeded, even if that may result in a visual or timing glitch. This is to prevent a hang of page flips, as reported in fdo bug #93746: Disconnecting a DisplayPort display in parallel to a kms pageflip getting queued can cause the following hang of page flips and thereby an unusable desktop: 1. kms pageflip ioctl() queues pageflip -> queues execution of amdgpu_flip_work_func. 2. Hotunplug of display causes the driver to DPMS OFF the unplugged display. Display engine shuts down, scanout no longer moves, but stays at its resting position at start line of vblank. 3. amdgpu_flip_work_func executes while crtc is off, and due to the non-moving scanout position, the new flip delay code introduced into Linux 4.4 by commit 8e36f9d33c13 ("drm/amdgpu: Fixup hw vblank counter/ts..") enters an infinite wait loop. 4. After reconnecting the display, the pageflip continues to hang in 3. and the display doesn't update its view of the desktop. This patch fixes the Linux 4.4 regression from fdo bug #93746 <https://bugs.freedesktop.org/show_bug.cgi?id=93746> Reported-by: Bernd Steinhauser <linux@bernd-steinhauser.de> Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> Cc: <stable@vger.kernel.org> # 4.4+ Cc: Michel Dänzer <michel.daenzer@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-02-19drm/radeon: Don't hang in radeon_flip_work_func on disabled crtc. (v2)Mario Kleiner1-2/+15
This fixes a regression introduced in Linux 4.4. Limit the amount of time radeon_flip_work_func can delay programming a page flip, by both limiting the maximum amount of time per wait cycle and the maximum number of wait cycles. Continue the flip if the limit is exceeded, even if that may result in a visual or timing glitch. This is to prevent a hang of page flips, as reported in fdo bug #93746: Disconnecting a DisplayPort display in parallel to a kms pageflip getting queued can cause the following hang of page flips and thereby an unusable desktop: 1. kms pageflip ioctl() queues pageflip -> queues execution of radeon_flip_work_func. 2. Hotunplug of display causes the driver to DPMS OFF the unplugged display. Display engine shuts down, scanout no longer moves, but stays at its resting position at start line of vblank. 3. radeon_flip_work_func executes while crtc is off, and due to the non-moving scanout position, the new flip delay code introduced into Linux 4.4 by commit 5b5561b3660d ("drm/radeon: Fixup hw vblank counter/ts..") enters an infinite wait loop. 4. After reconnecting the display, the pageflip continues to hang in 3. and the display doesn't update its view of the desktop. This patch fixes the Linux 4.4 regression from fdo bug #93746 <https://bugs.freedesktop.org/show_bug.cgi?id=93746> v2: Skip wait immediately if !radeon_crtc->enabled, as suggested by Michel. Reported-by: Bernd Steinhauser <linux@bernd-steinhauser.de> Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> Tested-by: Bernd Steinhauser <linux@bernd-steinhauser.de> Cc: <stable@vger.kernel.org> # 4.4+ Cc: Michel Dänzer <michel.daenzer@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-02-19ser_gigaset: use container_of() instead of detourPaul Bolle1-8/+1
The purpose of gigaset_device_release() is to kfree() the struct ser_cardstate that contains our struct device. This is done via a bit of a detour. First we make our struct device's driver_data point to the container of our struct ser_cardstate (which is a struct cardstate). In gigaset_device_release() we then retrieve that driver_data again. And after that we finally kfree() the struct ser_cardstate that was saved in the struct cardstate. All of this can be achieved much easier by using container_of() to get from our struct device to its container, struct ser_cardstate. Do so. Note that at the time the detour was implemented commit b8b2c7d845d5 ("base/platform: assert that dev_pm_domain callbacks are called unconditionally") had just entered the tree. That commit disconnected our platform_device and our platform_driver. These were reconnected again in v4.5-rc2 through commit 25cad69f21f5 ("base/platform: Fix platform drivers with no probe callback"). And one of the consequences of that fix was that it broke the detour via driver_data. That's because it made __device_release_driver() stop being a NOP for our struct device and actually do stuff again. One of the things it now does, is setting our driver_data to NULL. That, in turn, makes it impossible for gigaset_device_release() to get to our struct cardstate. Which has the net effect of leaking a struct ser_cardstate at every call of this driver's tty close() operation. So using container_of() has the additional benefit of actually working. Reported-by: Dmitry Vyukov <dvyukov@google.com> Tested-by: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Acked-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-19Merge tag 'wireless-drivers-for-davem-2016-02-18' of ↵David S. Miller10-100/+175
git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers Kalle Valo says: ==================== rtlwifi * fix broken VHT (802.11ac) support, reported by Linus wlcore * fix firmware initialisation regression on wl1271 iwlwifi * fix a race that users reported when we try to load the firmware and the hardware rfkill interrupt triggers at the same time * fix a very visible bug in scheduled scan: the firmware doesn't support scheduled scan with no profile configured and the supplicant sometimes requests such scheduled scans * build system fix to be able to link iwlwifi statically into kernel * firmware name update for 8265 * typo fix in return value ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-19cxgb3: fix up vpd strings for kstrto*()Steve Wise1-7/+27
The vpd strings are left justified, in a fixed length array, with possible trailing white space and no NUL. So fix them up before calling kstrto*(). This is a recent regression which causes cxgb3 to fail to load. Fixes: e72c932 ("cxgb3: Convert simple_strtoul to kstrtox") Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-19lwt: fix rx checksum setting for lwt devices tunneling over ipv6Paolo Abeni1-1/+2
the commit 35e2d1152b22 ("tunnels: Allow IPv6 UDP checksums to be correctly controlled.") changed the default xmit checksum setting for lwt vxlan/geneve ipv6 tunnels, so that now the checksum is not set into external UDP header. This commit changes the rx checksum setting for both lwt vxlan/geneve devices created by openvswitch accordingly, so that lwt over ipv6 tunnel pairs are again able to communicate with default values. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Acked-by: Jiri Benc <jbenc@redhat.com> Acked-by: Jesse Gross <jesse@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-19nfit: fix multi-interface dimm handling, acpi6.1 compatibilityDan Williams1-36/+35
ACPI 6.1 clarified that multi-interface dimms require multiple control region entries (DCRs) per dimm. Previously we were assuming that a control region is only present when block-data-windows are present. This implementation was done with an eye to be compatibility with the looser ACPI 6.0 interpretation of this table. 1/ When coalescing the memory device (MEMDEV) tables for a single dimm, coalesce on device_handle rather than control region index. 2/ Whenever we disocver a control region with non-zero block windows re-scan for block-data-window (BDW) entries. We may need to revisit this if a DIMM ever implements a format interface outside of blk or pmem, but that is not on the foreseeable horizon. Cc: <stable@vger.kernel.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2016-02-19Merge branch 'for-linus' of ↵Linus Torvalds2-6/+18
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Martin Schwidefsky: "Several bug fixes: - There are four different stack tracers, and three of them have bugs. For 4.5 the bugs are fixed and we prepare a cleanup patch for the next merge window. - Three bug fixes for the dasd driver in regard to parallel access volumes and the new max_dev_sectors block device queue limit - The irq restore optimization needs a fixup for memcpy_real - The diagnose trace code has a conflict with lockdep" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/dasd: fix performance drop s390/maccess: reduce stnsm instructions s390/diag: avoid lockdep recursion s390/dasd: fix refcount for PAV reassignment s390/dasd: prevent incorrect length error under z/VM after PAV changes s390: fix DAT off memory access, e.g. on kdump s390/oprofile: fix address range for asynchronous stack s390/perf_event: fix address range for asynchronous stack s390/stacktrace: add save_stack_trace_regs() s390/stacktrace: save full stack traces s390/stacktrace: add missing end marker s390/stacktrace: fix address ranges for asynchronous and panic stack s390/stacktrace: fix save_stack_trace_tsk() for current task
2016-02-19Merge tag 'pinctrl-v4.5-2' of ↵Linus Torvalds6-18/+48
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull Pin control fixes from Linus Walleij: "Pin control fixes for the v4.5 series, all are individual driver fixes: - Fix the PXA2xx driver to export its init function so we do not break modular compiles. - Hide unused functions in the Nomadik driver. - Fix up direction control in the Mediatek driver. - Toggle the sunxi GPIO lines to input when you read them on the H3 GPIO controller, lest you only get garbage. - Fix up the number of settings in the MVEBU driver. - Fix a serious SMP race condition in the Samsung driver" * tag 'pinctrl-v4.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: samsung: fix SMP race condition pinctrl: mvebu: fix num_settings in mpp group assignment pinctrl: sunxi: H3 requires irq_read_needs_mux pinctrl: mediatek: fix direction control issue pinctrl: nomadik: hide unused functions pinctrl: pxa: export pxa2xx_pinctrl_init()
2016-02-19drm/nouveau: use post-decrement in error handlingRasmus Villemoes1-1/+1
We need to use post-decrement to get the dma_map_page undone also for i==0, and to avoid some very unpleasant behaviour if dma_map_page failed already at i==0. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-02-19drm/atomic: Allow for holes in connector state, v2.Maarten Lankhorst3-54/+41
Because we record connector_mask using 1 << drm_connector_index now the connector_mask should stay the same even when other connectors are removed. This was not the case with MST, in that case when removing a connector all other connectors may change their index. This is fixed by waiting until the first get_connector_state to allocate connector_state, and force reallocation when state is too small. As a side effect connector arrays no longer have to be preallocated, and can be allocated on first use which means a less allocations in the page flip only path. Changes since v1: - Whitespace. (Ville) - Call ida_remove when destroying the connector. (Ville) - u32 alloc -> int. (Ville) Fixes: 14de6c44d149 ("drm/atomic: Remove drm_atomic_connectors_for_crtc.") Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Lyude <cpaul@redhat.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-02-18hwmon: (ads1015) Handle negative conversion values correctlyPeter Rosin1-1/+1
Make the divisor signed as DIV_ROUND_CLOSEST is undefined for negative dividends when the divisor is unsigned. Signed-off-by: Peter Rosin <peda@axentia.se> Cc: stable@vger.kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-02-18clk: gpio: Really allow an optional clock= DT propertyStephen Boyd1-1/+1
We mis-merged the original patch from Russell here and so the patch went almost all the way, except that we still failed to probe when there wasn't a clocks property in the DT node. Allow that case by making a negative value from of_clk_get_parent_count() into "no parents", like the original patch did. Fixes: 7ed88aa2efa5 ("clk: fix clk-gpio.c with optional clock= DT property") Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Michael Turquette <mturquette@baylibre.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-02-19Merge tag 'drm-vc4-fixes-2016-02-17' of github.com:anholt/linux into drm-fixesDave Airlie7-52/+118
This pull request fixes GPU reset (which was disabled shortly after V3D integration due to build breakage) and waits for idle in the presence of signals (which X likes to do a lot). * tag 'drm-vc4-fixes-2016-02-17' of github.com:anholt/linux: drm/vc4: Use runtime PM to power cycle the device when the GPU hangs. drm/vc4: Enable runtime PM. drm/vc4: Fix spurious GPU resets due to BO reuse. drm/vc4: Drop error message on seqno wait timeouts. drm/vc4: Fix -ERESTARTSYS error return from BO waits. drm/vc4: Return an ERR_PTR from BO creation instead of NULL. drm/vc4: Fix the clear color for the first tile rendered. drm/vc4: Validate that WAIT_BO padding is cleared.
2016-02-19Merge branch 'drm-fixes-4.5' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie2-2/+2
into drm-fixes Just two small fixes in the ttm_tt_populate error handling; one for radeon, one for amdgpu. * 'drm-fixes-4.5' of git://people.freedesktop.org/~agd5f/linux: drm/radeon: use post-decrement in error handling drm/amdgpu: use post-decrement in error handling
2016-02-19Merge tag 'drm-intel-fixes-2016-02-18' of ↵Dave Airlie2-14/+15
git://anongit.freedesktop.org/drm-intel into drm-fixes single g4x hpd fix. * tag 'drm-intel-fixes-2016-02-18' of git://anongit.freedesktop.org/drm-intel: drm/i915: Fix hpd live status bits for g4x
2016-02-18Merge tag 'scsi-fixes' of ↵Linus Torvalds2-2/+5
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Two simple fixes. One prevents a soft lockup on some target removal scenarios and the other prevents us trying to probe the marvell console device, which causes it to time out and need the bus resetting" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: fix soft lockup in scsi_remove_target() on module removal SCSI: Add Marvell configuration device to VPD blacklist
2016-02-18USB: cdc_subset: only build when one driver is enabledArnd Bergmann2-1/+11
This avoids a harmless randconfig warning I get when USB_NET_CDC_SUBSET is enabled, but all of the more specific drivers are not: drivers/net/usb/cdc_subset.c:241:2: #warning You need to configure some hardware for this driver The current behavior is clearly intentional, giving a warning when a user picks a configuration that won't do anything good. The only reason for even addressing this is that I'm getting close to eliminating all 'randconfig' warnings on ARM, and this came up a couple of times. My workaround is to not even build the module when none of the configurations are enable. Alternatively we could simply remove the #warning (nothing wrong for compile-testing), turn it into a runtime warning, or change the Kconfig options into a menu to hide CONFIG_USB_NET_CDC_SUBSET. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-18vxlan: do not use fdb in metadata modeJiri Benc1-3/+5
In metadata mode, the vxlan interface is not supposed to use the fdb control plane but an external one (openvswitch or static routes). With the current code, packets may leak into the fdb handling code which usually causes them to be dropped anyway but may have strange side effects. Just drop the packets directly when in metadata mode if the destination data are not correctly provided on egress. Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-18mISDN: prevent possible NULL pointer dereferenceAnton Protopopov1-1/+1
A return value of the bchannel_get_rxbuf() function is compared with the positive ENOMEM value instead of the negative -ENOMEM value to detect a memory allocation problem. Thus, after a possible memory allocation failure the bc->bch.rx_skb will be NULL which will lead to a NULL pointer dereference. Signed-off-by: Anton Protopopov <a.s.protopopov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-18lance: Return correct error codeAmitoj Kaur Chawla1-2/+2
Failure of kzalloc should cause the enclosing function to return -ENOMEM, not -ENODEV. Additionally, removed the following checkpatch warnings: ERROR: spaces required around that '==' (ctx:VxV) ERROR: space required before the open parenthesis '(' CHECK: Comparison to NULL could be written "!lp" Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-18geneve: clear IFF_TX_SKB_SHARINGJiri Benc1-0/+1
ether_setup sets IFF_TX_SKB_SHARING but this is not supported by geneve as it modifies the skb on xmit. Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-18vxlan: clear IFF_TX_SKB_SHARINGJiri Benc1-0/+1
ether_setup sets IFF_TX_SKB_SHARING but this is not supported by vxlan as it modifies the skb on xmit. Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-18geneve: Refine MTU limitDavid Wragg1-5/+22
Calculate the maximum MTU taking into account the size of headers involved in GENEVE encapsulation, as for other tunnel types. Changes in v3: - Correct comment style Changes in v2: - Conform more closely to ip_tunnel_change_mtu - Exclude GENEVE options from max MTU calculation Signed-off-by: David Wragg <david@weave.works> Acked-by: Jesse Gross <jesse@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-18mlxsw: spectrum: Allow for PVID deletionIdo Schimmel3-9/+63
When PVID is toggled off on a port member in a VLAN filtering bridge or the PVID VLAN is deleted, make the port drop untagged packets. Reverse the operation when PVID is toggled back on. Set the PVID back to the default (1), when leaving the bridge so that untagged traffic will be directed to the CPU. Fixes: 56ade8fe3fe1 ("mlxsw: spectrum: Add initial support for Spectrum ASIC") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-18mlxsw: reg: Add the Switch Port Acceptable Frame Types registerIdo Schimmel1-0/+58
When VLAN filtering is enabled on a bridge and PVID is deleted from a bridge port, then untagged frames are not allowed to ingress into the bridge from this port. Add the Switch Port Acceptable Frame Types (SPAFT) register, which configures the frame admittance of the port. Fixes: 56ade8fe3fe1 ("mlxsw: spectrum: Add initial support for Spectrum ASIC") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-18i2c: i801: Adding Intel Lewisburg support for iTCOAlexandra Yates1-0/+2
Starting from Intel Sunrisepoint (Skylake PCH) the iTCO watchdog resources have been moved to reside under the i801 SMBus host controller whereas previously they were under the LPC device. This patch adds Intel lewisburg SMBus support for iTCO device. It allows to load watchdog dynamically when the hardware is present. Fixes: cdc5a3110e7c ("i2c: i801: add Intel Lewisburg device IDs") Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Alexandra Yates <alexandra.yates@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Cc: stable@kernel.org
2016-02-17et131x: check return value of dma_alloc_coherentInsu Yun1-1/+1
For error handling, dma_alloc_coherent's return value needs to be checked, not argument. Signed-off-by: Insu Yun <wuninsu@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-17net: thunderx: Fix receive packet statsSunil Goutham3-13/+9
Counting rx packets for every CQE_RX in CQ irq handler is incorrect. Synchronization is missing when multiple queues are receiving packets simultaneously. Like transmit packet stats use HW stats here. Also removed unused 'cqe_type' parameter in nicvf_rcv_pkt_handler(). Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-17net: thunderx: Fix for HW TSO not enabled for secondary qsetsSunil Goutham1-3/+3
For secondary Qsets 'hw_tso' is not getting set as probe() returns much earlier. Fixed it by moving silicon revision check. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-17net: thunderx: Fix for multiqset not configured upon interface toggleSunil Goutham1-1/+0
When a interface is assigned morethan 8 queues and the logical interface is toggled i.e down & up, additional queues or qsets are not initialized as secondary qset count is being set to zero while tearing down. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-17phy: marvell: Fix and unify reg-init behaviorClemens Gruber1-2/+13
For the Marvell 88E1510, marvell_of_reg_init was called too late, in the config_aneg function. Since commit 113c74d83eef ("net: phy: turn carrier off on phy attach"), this lead to the link not coming up at boot anymore, due to the phy state machine being stuck at waiting for interrupts (off by default on the 88E1510). For seven other Marvell PHYs, marvell_of_reg_init was not called at all. Add a generic marvell_config_init function, which in turn calls marvell_of_reg_init. PHYs, which already have a specific config_init function with a call to marvell_of_reg_init, are left untouched. The generic marvell_config_init function is called for all the others, to get consistent behavior across all Marvell PHYs. Fixes: 113c74d83eef ("net: phy: turn carrier off on phy attach") Signed-off-by: Clemens Gruber <clemens.gruber@pqgruber.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-17pppoe: fix reference counting in PPPoE proxyGuillaume Nault1-0/+2
Drop reference on the relay_po socket when __pppoe_xmit() succeeds. This is already handled correctly in the error path. Signed-off-by: Guillaume Nault <g.nault@alphalink.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-17mlxsw: spectrum: Set STP state when leaving 802.1D bridgeIdo Schimmel1-0/+8
When a VLAN device leaves a bridge its STP state is set to DISABLED, which causes the hardware to discard any packets coming through the port with this VLAN. Fix that by setting STP state to FORWARDING when the device leaves its bridge and allow traffic to be directed to CPU. Fixes: 26f0e7fb15de ("mlxsw: spectrum: Add support for VLAN devices bridging") Reported-by: Elad Raz <eladr@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-17mlxsw: Treat local port 64 as validIdo Schimmel1-1/+1
MLXSW_PORT_MAX_PORTS represents the maximum number of local ports, which is 65 for both ASICs (SwitchX-2 and Spectrum) supported by this driver. Fixes: 93c1edb27f9e ("mlxsw: Introduce Mellanox switch driver core") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-17Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds11-88/+130
Pull block fixes from Jens Axboe: "A collection of fixes from the past few weeks that should go into 4.5. This contains: - Overflow fix for sysfs discard show function from Alan. - A stacking limit init fix for max_dev_sectors, so we don't end up artificially capping some use cases. From Keith. - Have blk-mq proper end unstarted requests on a dying queue, instead of pushing that to the driver. From Keith. - NVMe: - Update to Kconfig description for NVME_SCSI, since it was vague and having it on is important for some SUSE distros. From Christoph. - Set of fixes from Keith, around surprise removal. Also kills the no-merge flag, so it supports merging. - Set of fixes for lightnvm from Matias, Javier, and Wenwei. - Fix null_blk oops when asked for lightnvm, but not available. From Matias. - Copy-to-user EINTR fix from Hannes, fixing a case where SG_IO fails if interrupted by a signal. - Two floppy fixes from Jiri, fixing signal handling and blocking open. - A use-after-free fix for O_DIRECT, from Mike Krinkin. - A block module ref count fix from Roman Pen. - An fs IO wait accounting fix for O_DSYNC from Stephane Gasparini. - Smaller reallo fix for xen-blkfront from Bob Liu. - Removal of an unused struct member in the deadline IO scheduler, from Tahsin. - Also from Tahsin, properly initialize inode struct members associated with cgroup writeback, if enabled. - From Tejun, ensure that we keep the superblock pinned during cgroup writeback" * 'for-linus' of git://git.kernel.dk/linux-block: (25 commits) blk: fix overflow in queue_discard_max_hw_show writeback: initialize inode members that track writeback history writeback: keep superblock pinned during cgroup writeback association switches bio: return EINTR if copying to user space got interrupted NVMe: Rate limit nvme IO warnings NVMe: Poll device while still active during remove NVMe: Requeue requests on suspended queues NVMe: Allow request merges NVMe: Fix io incapable return values blk-mq: End unstarted requests on dying queue block: Initialize max_dev_sectors to 0 null_blk: oops when initializing without lightnvm block: fix module reference leak on put_disk() call for cgroups throttle nvme: fix Kconfig description for BLK_DEV_NVME_SCSI kernel/fs: fix I/O wait not accounted for RW O_DSYNC floppy: refactor open() flags handling lightnvm: allow to force mm initialization lightnvm: check overflow and correct mlc pairs lightnvm: fix request intersection locking in rrpc lightnvm: warn if irqs are disabled in lock laddr ...
2016-02-17Merge tag 'devicetree-fixes-for-4.5-2' of ↵Linus Torvalds1-1/+8
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DeviceTree fixes from Rob Herring: - Fix irq msi-map calculation for nonzero rid-base. - Binding doc updates for GICv3, fsl-imx-uart, and S3C RTC. * tag 'devicetree-fixes-for-4.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: rtc: s3c: Document required clocks in the DT binding serial: fsl-imx-uart: Fix typo in fsl,dte-mode description dt-bindings: arm, gic-v3: require that reserved cells are always 0 of/irq: Fix msi-map calculation for nonzero rid-base
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