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2016-03-03IB/mlx5: Avoid using user-index for SRQsMajd Dibbiny
Normal SRQs, unlike XRC SRQs, don't have user-index, therefore avoid verifying it and using it. Fixes: cfb5e088e26a ('IB/mlx5: Add CQE version 1 support to user QPs and SRQs') Signed-off-by: Majd Dibbiny <majd@mellanox.com> Reviewed-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-03powerpc/hw_breakpoint: Fix oops when destroying hw_breakpoint eventRavi Bangoria
When destroying a hw_breakpoint event, the kernel oopses as follows: Unable to handle kernel paging request for data at address 0x00000c07 NIP [c0000000000291d0] arch_unregister_hw_breakpoint+0x40/0x60 LR [c00000000020b6b4] release_bp_slot+0x44/0x80 Call chain: hw_breakpoint_event_init() bp->destroy = bp_perf_event_destroy; do_exit() perf_event_exit_task() perf_event_exit_task_context() WRITE_ONCE(child_ctx->task, TASK_TOMBSTONE); perf_event_exit_event() free_event() _free_event() bp_perf_event_destroy() // event->destroy(event); release_bp_slot() arch_unregister_hw_breakpoint() perf_event_exit_task_context() sets child_ctx->task as TASK_TOMBSTONE which is (void *)-1. arch_unregister_hw_breakpoint() tries to fetch 'thread' attribute of 'task' resulting in oops. Peterz points out that the code shouldn't be using bp->ctx anyway, but fixing that will require a decent amount of rework. So for now to fix the oops, check if bp->ctx->task has been set to (void *)-1, before dereferencing it. We don't use TASK_TOMBSTONE, because that would require exporting it and it's supposed to be an internal detail. Fixes: 63b6da39bb38 ("perf: Fix perf_event_exit_task() race") Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-03-03ALSA: hda - Fix mic issues on Acer Aspire E1-472Simon South
This patch applies the microphone-related fix created for the Acer Aspire E1-572 to the E1-472 as well, as it uses the same Realtek ALC282 CODEC and demonstrates the same issues. This patch allows an external, headset microphone to be used and limits the gain on the (quite noisy) internal microphone. Signed-off-by: Simon South <simon@simonsouth.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-03-03[media] media.h: use hex values for range offsets, move connectors base up.Hans Verkuil
Make the base offset hexadecimal to simplify debugging since the base addresses are hex too. The offsets for connectors is also changed to start after the 'reserved' range 0x10000-0x2ffff. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03Merge branch 'drm-fixes-4.5' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-fixes Fixes for radeon and amdgpu: - Fix GPUVM flushing on CI and VI - Misc DPM and Powerplay fixes - VCE DPM fixes for CZ/ST - DP hotplug fix * 'drm-fixes-4.5' of git://people.freedesktop.org/~agd5f/linux: drm/amdgpu: return from atombios_dp_get_dpcd only when error drm/amdgpu/cz: remove commented out call to enable vce pg drm/amdgpu/powerplay/cz: enable/disable vce dpm independent of vce pg drm/amdgpu/cz: enable/disable vce dpm even if vce pg is disabled drm/amdgpu/gfx8: specify which engine to wait before vm flush drm/amdgpu: apply gfx_v8 fixes to gfx_v7 as well drm/amd/powerplay: send event to notify powerplay all modules are initialized. drm/amd/powerplay: export AMD_PP_EVENT_COMPLETE_INIT task to amdgpu. drm/radeon/pm: update current crtc info after setting the powerstate drm/amdgpu/pm: update current crtc info after setting the powerstate
2016-03-03PM / sleep / x86: Fix crash on graph trace through x86 suspendTodd E Brandt
Pause/unpause graph tracing around do_suspend_lowlevel as it has inconsistent call/return info after it jumps to the wakeup vector. The graph trace buffer will otherwise become misaligned and may eventually crash and hang on suspend. To reproduce the issue and test the fix: Run a function_graph trace over suspend/resume and set the graph function to suspend_devices_and_enter. This consistently hangs the system without this fix. Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com> Cc: All applicable <stable@vger.kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-03-02Input: rotary-encoder - support more than 2 gpios as inputUwe Kleine-König
This changes how the used gpios are stored (i.e. a struct gpio_descs instead of two struct gpio_desc) and as with >2 gpios the states are numbered differently the function rotary_encoder_get_state returns unencoded numbers instead of grey encoded numbers before. The latter has some implications on how the returned value is used and so the change is bigger than one might expect at first. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Daniel Mack <daniel@zonque.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02Input: rotary_encoder - move away from platform data structureDmitry Torokhov
Drop support for platform data passed via a C-structure and switch to device properties instead, which should make the driver compatible with all platforms: OF, ACPI and static boards. Static boards should use property sets to communicate device parameters to the driver. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02Merge tag 'renesas-dt-fixes2-for-v4.5' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes Merge "Second Round of Renesas ARM Based SoC DT Fixes for v4.5" from Simon Horman: * remove enable prop from HS-USB device node on porter board * tag 'renesas-dt-fixes2-for-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: ARM: dts: porter: remove enable prop from HS-USB device node
2016-03-02Merge branch 'dwc_eth_qos'David S. Miller
Lars Persson says: ==================== dwc_eth_qos: stability fixes and support for CMA This series has bug fixes for the dwc_eth_qos ethernet driver. Mainly two stability fixes for problems found by Rabin Vincent: - Successive starts and stops of the interface would trigger a DMA reset timeout. - A race condition in the TX DMA handling could trigger a netdev watchdog timeout. The memory allocation was improved to support use of the CMA as DMA allocator backend. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02dwc_eth_qos: do phy_start before resetting hardwareLars Persson
This reverts the changed init order from commit 3647bc35bd42 ("dwc_eth_qos: Reset hardware before PHY start") and makes another fix for the race. It turned out that the reset state machine of the dwceqos hardware requires PHY clocks to be present in order to complete the reset cycle. To plug the race with the phy state machine we defer link speed setting until the hardware init has finished. Signed-off-by: Lars Persson <larper@axis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02dwc_eth_qos: use DWCEQOS_MSG_DEFAULTRabin Vincent
Since debug is hardcoded to 3, the defaults in the DWCEQOS_MSG_DEFAULT macro are never used, which does not seem to be the intended behaviour here. Set debug to -1 like other drivers so that DWCEQOS_MSG_DEFAULT is actually used by default. Signed-off-by: Rabin Vincent <rabinv@axis.com> Signed-off-by: Lars Persson <larper@axis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02dwc_eth_qos: use GFP_KERNEL in dma_alloc_coherent()Rabin Vincent
Since we are in non-atomic context here we can pass GFP_KERNEL to dma_alloc_coherent(). This enables use of the CMA. Signed-off-by: Rabin Vincent <rabinv@axis.com> Signed-off-by: Lars Persson <larper@axis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02dwc_eth_qos: release descriptors outside netif_tx_lockLars Persson
To prepare for using the CMA, we can not be in atomic context when de-allocating DMA buffers. The tx lock was needed only to protect the hw reset against the xmit handler. Now we briefly grab the tx lock while stopping the queue to make sure no thread is inside or will enter the xmit handler. Signed-off-by: Lars Persson <larper@axis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02dwc_eth_qos: fix race condition in dwceqos_start_xmitRabin Vincent
The xmit handler and the tx_reclaim tasklet had a race on the tx_free variable which could lead to a tx timeout if tx_free was updated after the tx complete interrupt. Signed-off-by: Rabin Vincent <rabinv@axis.com> Signed-off-by: Lars Persson <larper@axis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02Merge branch 'mlx4-fixes'David S. Miller
Or Gerlitz says: ==================== Mellanox 10/40G mlx4 driver fixes for 4.5-rc6 This series contains two fixes for the SRIOV HW LAG that was introduced in 4.5-rc1 and one fix that allows to revoke the administrative MAC that was assigned to VF through the PF. The VF mac fix needs to go for stable too. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02net/mlx4_core: Allow resetting VF admin mac to zeroJack Morgenstein
The VF administrative mac addresses (stored in the PF driver) are initialized to zero when the PF driver starts up. These addresses may be modified in the PF driver through ndo calls initiated by iproute2 or libvirt. While we allow the PF/host to change the VF admin mac address from zero to a valid unicast mac, we do not allow restoring the VF admin mac to zero. We currently only allow changing this mac to a different unicast mac. This leads to problems when libvirt scripts are used to deal with VF mac addresses, and libvirt attempts to revoke the mac so this host will not use it anymore. Fix this by allowing resetting a VF administrative MAC back to zero. Fixes: 8f7ba3ca12f6 ('net/mlx4: Add set VF mac address support') Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Reported-by: Moshe Levi <moshele@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02net/mlx4_core: Check the correct limitation on VFs for HA modeMoni Shoua
The limit of 63 is only for virtual functions while the actual enforcement was for VFs plus physical functions, fix that. Fixes: e57968a10bc1 ('net/mlx4_core: Support the HA mode for SRIOV VFs too') Signed-off-by: Moni Shoua <monis@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02net/mlx4_core: Fix lockdep warning in handling of mac/vlan tablesJack Morgenstein
In the mac and vlan register/unregister/replace functions, the driver locks the mac table mutex (or vlan table mutex) on both ports. We move to use mutex_lock_nested() to prevent warnings, such as the one below. [ 101.828445] ============================================= [ 101.834820] [ INFO: possible recursive locking detected ] [ 101.841199] 4.5.0-rc2+ #49 Not tainted [ 101.850251] --------------------------------------------- [ 101.856621] modprobe/3054 is trying to acquire lock: [ 101.862514] (&table->mutex#2){+.+.+.}, at: [<ffffffffa079c10e>] __mlx4_register_mac+0x87e/0xa90 [mlx4_core] [ 101.874598] [ 101.874598] but task is already holding lock: [ 101.881703] (&table->mutex#2){+.+.+.}, at: [<ffffffffa079c0f0>] __mlx4_register_mac+0x860/0xa90 [mlx4_core] [ 101.893776] [ 101.893776] other info that might help us debug this: [ 101.901658] Possible unsafe locking scenario: [ 101.901658] [ 101.908859] CPU0 [ 101.911923] ---- [ 101.914985] lock(&table->mutex#2); [ 101.919595] lock(&table->mutex#2); [ 101.924199] [ 101.924199] * DEADLOCK * [ 101.924199] [ 101.931643] May be due to missing lock nesting notation Fixes: 5f61385d2ebc ('net/mlx4_core: Keep VLAN/MAC tables mirrored in multifunc HA mode') Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Suggested-by: Doron Tsur <doront@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02Merge branch 'mlx5-fixes'David S. Miller
Saeed Mahameed says: ==================== Mellanox 100G mlx5 driver fixes This series has few bug fixes for the mlx5 Ethernet driver. Eran fixed a locking issue with time-stamping that could cause a soft-lockup when time-stamping is enabled. Gal fixed the rx/tx packets/bytes counters returned by the driver to actually went through the network stack. Tariq removed a poll CQ optimization which could lead the driver to stop getting interrupts for some of the rings, and a did also fix to HW LRO which is currently broken. He also provided RSS and RX hash fixes for the case of changing the number of rx rings the RX hash/RSS configuration will be out of sync. The time stamping fix from Eran is not for -stable as the feature was only introduced in 4.5 but all of the others are. Changes fro V0: - Eran addressed the irqsave/restore comments from "Dave" and fixed them. This series is generated against net commit 4c0b6eaf373a 'net: thunderx: Fix for Qset error due to CQ full' ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02net/mlx5e: Provide correct packet/bytes statisticsGal Pressman
Using the HW VPort counters for traffic (rx/tx packets/bytes) statistics is wrong. This is because frames dropped due to steering or out of buffer will be counted as received. To fix that, we move to use the packet/bytes accounting done by the driver for what the netdev reports out. Fixes: f62b8bb8f2d3 ('net/mlx5: Extend mlx5_core to support [...]') Signed-off-by: Gal Pressman <galp@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02net/mlx5e: Add rx/tx bytes software countersGal Pressman
Sum up rx/tx bytes in software as we do for rx/tx packets, to be reported in upcoming statistics fix. Signed-off-by: Gal Pressman <galp@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02net/mlx5e: Correctly handle RSS indirection table when changing number of ↵Tariq Toukan
channels Upon changing num_channels, reset the RSS indirection table to match the new value. Fixes: 2d75b2bc8a8c ('net/mlx5e: Add ethtool RSS configuration options') Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02net/mlx5e: Fix ethtool RX hash func configuration changeTariq Toukan
We should modify TIRs explicitly to apply the new RSS configuration. The light ndo close/open calls do not "refresh" them. Fixes: 2d75b2bc8a8c ('net/mlx5e: Add ethtool RSS configuration options') Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02net/mlx5e: Fix soft lockup when HW Timestamping is enabledEran Ben Elisha
Readers/Writers lock for SW timecounter was acquired without disabling interrupts on local CPU. The problematic scenario: * HW timestamping is enabled * Timestamp overflow periodic service task is running on local CPU and holding write_lock for SW timecounter * Completion arrives, triggers interrupt for local CPU. Interrupt routine calls napi_schedule(), which triggers rx/tx skb process. An attempt to read SW timecounter using read_lock is done, which is already locked by a writer on the same CPU and cause soft lockup. Add irqsave/irqrestore for when using the readers/writers lock for writing. Fixes: ef9814deafd0 ('net/mlx5e: Add HW timestamping (TS) support') Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02net/mlx5e: Fix LRO modifyTariq Toukan
Ethtool LRO enable/disable is broken, as of today we only modify TCP TIRs in order to apply the requested configuration. Hardware requires that all TIRs pointing to the same RQ should share the same LRO configuration. For that all other TIRs' LRO fields must be modified as well. Fixes: 5c50368f3831 ('net/mlx5e: Light-weight netdev open/stop') Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02net/mlx5e: Remove wrong poll CQ optimizationTariq Toukan
With the MLX5E_CQ_HAS_CQES optimization flag, the following buggy flow might occur: - Suppose RX is always busy, TX has a single packet every second. - We poll a single TX cqe and clear its flag. - We never arm it again as RX is always busy. - TX CQ flag is never changed, and new TX cqes are not polled. We revert this optimization. Fixes: e586b3b0baee ('net/mlx5: Ethernet Datapath files') Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02r8169: Enable RX_MULTI_EN for RTL_GIGA_MAC_VER_41~48Chunhao Lin
For RTL8168G/RTL8168H/RTL8411B/RTL8107E, enable this flag to eliminate message "AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0002 address=0x0000000000003000 flags=0x0050] in dmesg. Signed-off-by: Chunhao Lin <hau@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02Merge tag 'mac80211-for-davem-2016-03-02' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 Johannes Berg says: ==================== Here are a few more fixes for the current cycle: * check GCMP encryption vs. fragmentation properly; we'd found this problem quite a while ago but waited for the 802.11 spec to be updated * fix RTS/CTS logic in minstrel_ht * fix RX of certain public action frames in AP mode * add mac80211_hwsim to MAC80211 in MAINTAINERS, this helps the kbuild robot pick up the right tree for it ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02Merge branch 'bnx2x-fixes'David S. Miller
Michal Schmidt says: ==================== bnx2x: endianness fixes this fixes a VLAN crash and some SRIOV bugs in bnx2x observed on ppc64. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02bnx2x: fix indentation in bnx2x_sp_task()Michal Schmidt
Fix a case of misleading code indentation. Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02bnx2x: define event data reserved fields as little-endianMichal Schmidt
For consistency with other event data structs and to lessen the chance of a mistake should one of the reserved fields become used in the future, define the reserved fields as little-endian. Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02bnx2x: define fields of struct cfc_del_event_data as little-endianMichal Schmidt
There were no missing endianness conversions in this case, but the fields of struct cfc_del_event_data should be defined as little-endian to get rid of the ugly (__force __le32) casts. Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02bnx2x: access cfc_del_event only if the opcode is CFC_DELMichal Schmidt
It's not really a bug, but it was odd that bnx2x_eq_int() read the message data as if it were a cfc_del_event regardless of the event type. It's cleaner to access only the appropriate member of union event_data after checking the event opcode. Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02bnx2x: fix receive of VF->PF mailbox messages by the PF on big-endianMichal Schmidt
On ppc64 the PF did not receive messages from VFs correctly. Fields of struct vf_pf_event_data are little-endian. Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02bnx2x: fix sending VF->PF messages on big-endianMichal Schmidt
When a VF is sending a message to the PF, it needs to trigger the PF to tell it the message is ready. The trigger did not work on ppc64. No interrupt appeared in the PF. The bug is due to confusion about the layout of struct trigger_vf_zone. In bnx2x_send_msg2pf() the trigger is written using writeb(), not writel(), so the attempt to define the struct with a reversed layout on big-endian is counter-productive. Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02bnx2x: fix crash on big-endian when adding VLANMichal Schmidt
bnx2x crashes during the initialization of the 8021q module on ppc64. The bug is a missing conversion from le32 in bnx2x_handle_classification_eqe() when obtaining the cid value from struct eth_event_data. The fields in struct eth_event_data should all be declared as little-endian and conversions added where missing. Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-02Merge branch 'parisc-4.5-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc fixes from Helge Deller: "We wire up the copy_file_range syscall, fix two bugs in the parisc ptrace code and have a trivial fix for floppy.h to clarify an expression with parentheses" * 'parisc-4.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Wire up copy_file_range syscall parisc: Fix ptrace syscall number and return value modification parisc: Use parentheses around expression in floppy.h
2016-03-02Input: stmpe-ts - restore kerneldocLinus Walleij
commit e4b88e19897f1039fd83f1630517becafc0dd163 "Input: stmpe-ts - enforce device tree only mode" removed platform data but accidentally stripped away useful kerneldoc, so reintroduce it. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02Input: snvs_pwrkey - use __maybe_unused to hide pm functionsArnd Bergmann
The SNVS power key driver has suspend/resume functions that are accessed using SIMPLE_DEV_PM_OPS, which hide the reference when CONFIG_PM_SLEEP is not set, resulting in a warning about unused functions: drivers/input/keyboard/snvs_pwrkey.c:183:12: error: 'imx_snvs_pwrkey_suspend' defined but not used [-Werror=unused-function] drivers/input/keyboard/snvs_pwrkey.c:194:12: error: 'imx_snvs_pwrkey_resume' defined but not used [-Werror=unused-function] This adds __maybe_unused annotations to let the compiler know it can silently drop the function definition. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02Input: spear-keyboard - use __maybe_unused to hide pm functionsArnd Bergmann
The spear keyboard driver uses #ifdef CONFIG_PM to hide its power management functions, but then uses references from SIMPLE_DEV_PM_OPS that are only present if both CONFIG_PM and CONFIG_PM_SLEEP are set, resulting in a warning about unused functions: drivers/input/keyboard/spear-keyboard.c:292:12: error: 'spear_kbd_suspend' defined but not used [-Werror=unused-function] drivers/input/keyboard/spear-keyboard.c:345:12: error: 'spear_kbd_resume' defined but not used [-Werror=unused-function] This removes the #ifdef and instead uses a __maybe_unused annotation. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02Input: goldfish_events - enable ACPI-based enumeration for goldfish eventsJason Hu
Add ACPI binding to the goldfish events driver. Signed-off-by: Jason Hu <jia-cheng.hu@intel.com> Signed-off-by: Jin Qian <jinqian@android.com> Signed-off-by: Alan <alan@linux.intel.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02Input: goldfish_events - add devicetree bindingsGreg Hackmann
Add device tree bindings to the Goldfish virtual platform event driver. Signed-off-by: Greg Hackmann <ghackmann@google.com> Signed-off-by: Jin Qian <jinqian@android.com> Signed-off-by: Alan <alan@linux.intel.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02Input: rotary_encoder - use input_set_capability()Dmitry Torokhov
Instead of manipulating capability bits directly let's use appropriate helpers. Also there is no need to explicitly set EV_ABS when calling input_set_abs_params(). Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02Input: rotary_encoder - convert to use gpiod APIDmitry Torokhov
Instead of using old GPIO API, let's switch to GPIOD API, which automatically handles polarity. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02Input: rotary_encoder - mark PM methods as __maybe_unusedDmitry Torokhov
Instead of guarding PM methods with #ifdef let's mark them as __maybe_unused as it allows for better compile coverage. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02Input: rotary_encoder - use threaded irqsTimo Teräs
Convert to use threaded IRQs to support GPIOs that can sleep. Protect the irq handler with mutex as it can be triggered from two different irq lines accessing the same state. This allows using GPIO expanders behind I2C or SPI bus. Signed-off-by: Timo Teräs <timo.teras@iki.fi> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds
Pull cifs fixes from Steve French: "Various small CIFS/SMB3 fixes for stable: Fixes address oops that can occur when accessing Macs with SMB3, and another problem found to Samba when read responses queued (e.g. with gluster under Samba)" * 'for-next' of git://git.samba.org/sfrench/cifs-2.6: CIFS: Fix duplicate line introduced by clone_file_range patch Fix cifs_uniqueid_to_ino_t() function for s390x CIFS: Fix SMB2+ interim response processing for read requests cifs: fix out-of-bounds access in lease parsing
2016-03-02userfaultfd: don't block on the last VM updates at exit timeLinus Torvalds
The exit path will do some final updates to the VM of an exiting process to inform others of the fact that the process is going away. That happens, for example, for robust futex state cleanup, but also if the parent has asked for a TID update when the process exits (we clear the child tid field in user space). However, at the time we do those final VM accesses, we've already stopped accepting signals, so the usual "stop waiting for userfaults on signal" code in fs/userfaultfd.c no longer works, and the process can become an unkillable zombie waiting for something that will never happen. To solve this, just make handle_userfault() abort any user fault handling if we're already in the exit path past the signal handling state being dead (marked by PF_EXITING). This VM special case is pretty ugly, and it is possible that we should look at finalizing signals later (or move the VM final accesses earlier). But in the meantime this is a fairly minimally intrusive fix. Reported-and-tested-by: Dmitry Vyukov <dvyukov@google.com> Acked-by: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-03-02drm/amdgpu: return from atombios_dp_get_dpcd only when errorArindam Nath
In amdgpu_connector_hotplug(), we need to start DP link training only after we have received DPCD. The function amdgpu_atombios_dp_get_dpcd() returns non-zero value only when an error condition is met, otherwise returns zero. So in case the function encounters an error, we need to skip rest of the code and return from amdgpu_connector_hotplug() immediately. Only when we are successfull in reading DPCD pin, we should carry on with turning-on the monitor. Signed-off-by: Arindam Nath <arindam.nath@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
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