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2016-03-07drm: etnaviv: clean up GPU command submissionRussell King
Clean up the GPU command submission path to prepare for the next change. This makes the next change easier to read and understand. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-03-07drm: etnaviv: use previous GPU pipe state when pipe switchingRussell King
Use the previous GPU pipe state when deciding which GPU caches should be flushed prior to switching the current pipe. This avoids infering what the previously selected pipe was, and potentially flushing the wrong caches. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-03-07drm: etnaviv: flush all GPU caches when stopping GPURussell King
Flush the GPU caches to ensure that any dirty data is pushed out before stopping the front end. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-03-07drm: etnaviv: track current execution stateRussell King
Add tracking of the current execution state (iow, active GPU pipe). Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-03-07drm: etnaviv: extract arming of semaphoreRussell King
Extract out the arming of a semaphore from the pipe select code. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-03-07drm: etnaviv: extract replacement of WAIT commandRussell King
Extract out the replacement of the WAIT command with some other command. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-03-07drm: etnaviv: extract command ring reservationRussell King
Provide a helper etnaviv_buffer_reserve() to ensure that we can fit a set of commands into the ring buffer without wrapping by moving code out of etnaviv_buffer_queue(). Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-03-07drm/etnaviv: move GPU linear window to end of DMA windowLucas Stach
If the end of the system DMA window is farther away from the start of physical RAM than the size of the GPU linear window, move the linear window so that it ends at the same address than the system DMA window. This allows to map command buffer from CMA, which is likely to reside at the end of the system DMA window, while also overlapping as much RAM as possible, in order to optimize regular buffer mappings through the linear window. Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-03-07drm/etnaviv: move runtime PM balance into retire workerLucas Stach
The retire worker is kicked for each fence, either the normal way by signaling the fence from the event completion interrupt or by the recover worker if the GPU got stuck. Moving the RPM put into the retire worker allows us to have it in a single place for both cases. This also shaves off quite a bit of the CPU time spent in hardirq context, as arming the autosuspend timer when the RPM refcount drops to 0 is a relatively costly operation. Tested-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-03-07Merge tag 'asoc-fix-v4.5-rc6' of ↵Takashi Iwai
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Fixes for v4.5 This is far too big a set of fixes for this late in the release cycle but the overwhelming bulk is essentially the same simple fix from Takashi for a cut'n'pasted 64 bit cleanliness issue in the userspace interface where drivers were accessing things using the wrong element in a union which worked OK on 32 bit platforms as the correct element happened to be aligned the same way but with 64 bit platforms ABIs are different and the two members of the union are laid out in different places. They aren't all tagged to stable since some of these chips have vanishingly little chance of being used in 64 bit systems. The other changes are: - A fix for Qualcomm devices to work on big endian systems. The original change is actually correct but triggered a bug in regmap which is too invasive to fix for this cycle and can be worked around by just letting regmap pick the default. - A fix for the Samsung I2S driver locking which wasn't using IRQ safe spinlocks when it needed to. - A fix for the new Intel Sky Lake driver forgetting that C pointer arithmetic takes the type of the pointer into consideration. - A revert of a change to the FSL SSI driver that broke some systems. - A fix for the cleanup path of the wm9713 driver. - A fix for some incorrect register definitions in the ADAU17x1 driver that caused misclocking in some configurations. - A fix for the tracepoints for jack detection to avoid using an internal field of the core jack structure which is no longer present in all configurations. - A fix for another of the new Intel drivers which tried to write to a string literal.
2016-03-07ARM: dts: dra7: do not gate cpsw clock due to errata i877Mugunthan V N
Errata id: i877 Description: ------------ The RGMII 1000 Mbps Transmit timing is based on the output clock (rgmiin_txc) being driven relative to the rising edge of an internal clock and the output control/data (rgmiin_txctl/txd) being driven relative to the falling edge of an internal clock source. If the internal clock source is allowed to be static low (i.e., disabled) for an extended period of time then when the clock is actually enabled the timing delta between the rising edge and falling edge can change over the lifetime of the device. This can result in the device switching characteristics degrading over time, and eventually failing to meet the Data Manual Delay Time/Skew specs. To maintain RGMII 1000 Mbps IO Timings, SW should minimize the duration that the Ethernet internal clock source is disabled. Note that the device reset state for the Ethernet clock is "disabled". Other RGMII modes (10 Mbps, 100Mbps) are not affected Workaround: ----------- If the SoC Ethernet interface(s) are used in RGMII mode at 1000 Mbps, SW should minimize the time the Ethernet internal clock source is disabled to a maximum of 200 hours in a device life cycle. This is done by enabling the clock as early as possible in IPL (QNX) or SPL/u-boot (Linux/Android) by setting the register CM_GMAC_CLKSTCTRL[1:0]CLKTRCTRL = 0x2:SW_WKUP. So, do not allow to gate the cpsw clocks using ti,no-idle property in cpsw node assuming 1000 Mbps is being used all the time. If someone does not need 1000 Mbps and wants to gate clocks to cpsw, this property needs to be deleted in their respective board files. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Cc: <stable@vger.kernel.org> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-03-07ARM: OMAP2+: hwmod: Introduce ti,no-idle dt propertyLokesh Vutla
Introduce a dt property, ti,no-idle, that prevents an IP to idle at any point. This is to handle Errata i877, which tells that GMAC clocks cannot be disabled. Acked-by: Roger Quadros <rogerq@ti.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Acked-by: Rob Herring <robh@kernel.org> Cc: <stable@vger.kernel.org> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-03-06tipc: fix nullptr crash during subscription cancelParthasarathy Bhuvaragan
commit 4d5cfcba2f6e ('tipc: fix connection abort during subscription cancel'), removes the check for a valid subscription before calling tipc_nametbl_subscribe(). This will lead to a nullptr exception when we process a subscription cancel request. For a cancel request, a null subscription is passed to tipc_nametbl_subscribe() resulting in exception. In this commit, we call tipc_nametbl_subscribe() only for a valid subscription. Fixes: 4d5cfcba2f6e ('tipc: fix connection abort during subscription cancel') Reported-by: Anders Widell <anders.widell@ericsson.com> Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-06net: eth: altera: do not free array priv->mdio->irqColin Ian King
priv->mdio->irq used to be allocated and required freeing, but it is now a fixed sized array and should no longer be free'd. Issue detected using static analysis with CoverityScan Fixes: e7f4dc3536a400 ("mdio: Move allocation of interrupts into core") Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-06net/ethoc: do not free array priv->mdio->irqColin Ian King
priv->mdio->irq used to be allocated and required freeing, but it is now a fixed sized array and should no longer be free'd. Issue detected using static analysis with CoverityScan Fixes: e7f4dc3536a400 ("mdio: Move allocation of interrupts into core") Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Tobias Klauser <tklauser@distanz.ch> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-06net: sched: fix act_ipt for LOG targetPhil Sutter
Before calling the destroy() or target() callbacks, the family parameter field has to be initialized. Otherwise at least the LOG target will refuse to work and upon removal oops the kernel. Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Phil Sutter <phil@nwl.cc> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-06asix: do not free array priv->mdio->irqColin Ian King
Used to be allocated and required freeing, but now priv->mdio->irq is now a fixed sized array and should no longer be free'd. Issue detected using static analysis with CoverityScan Fixes: e7f4dc3536a400 ("mdio: Move allocation of interrupts into core") Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-06gianfar: Enable eTSEC-106 erratum w/a for MPC8548E Rev2Atsushi Nemoto
Enable workaround for MPC8548E erratum eTSEC 106, "Excess delays when transmitting TOE=1 large frames". (see commit 53fad77375ce "gianfar: Enable eTSEC-20 erratum w/a for P2020 Rev1") This erratum was fixed in Rev 3.1.x. Signed-off-by: Atsushi Nemoto <nemoto@toshiba-tops.co.jp> Acked-by: Claudiu Manoil <claudiu.manoil@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-06Linux 4.5-rc7v4.5-rc7Linus Torvalds
2016-03-06Merge tag 'armsoc-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fix from Olof Johansson: "Tiny fixes branch this week, in fact only one patch. Turns out the USB support for a Renesas board was developed on a pre-release board that ended up being changed before shipping. To avoid breakage on those boards, and avoid confusion, it's a reasonable idea to patch now instead of later. There are no known users of the pre-release variant any more" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: dts: porter: remove enable prop from HS-USB device node
2016-03-06Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-armLinus Torvalds
Pull ARM fixes from Russell King: "Just two ARM fixes this time: one to fix the hyp-stub for older ARM CPUs, and another to fix the set_memory_xx() permission functions to deal with zero sizes correctly" * 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: ARM: 8544/1: set_memory_xx fixes ARM: 8534/1: virt: fix hyp-stub build for pre-ARMv7 CPUs
2016-03-07xfs: only run torn log write detection on dirty logsBrian Foster
XFS uses CRC verification over a sub-range of the head of the log to detect and handle torn writes. This torn log write detection currently runs unconditionally at mount time, regardless of whether the log is dirty or clean. This is problematic in cases where a filesystem might end up being moved across different, incompatible (i.e., opposite byte-endianness) architectures. The problem lies in the fact that log data is not necessarily written in an architecture independent format. For example, certain bits of data are written in native endian format. Further, the size of certain log data structures differs (i.e., struct xlog_rec_header) depending on the word size of the cpu. This leads to false positive crc verification errors and ultimately failed mounts when a cleanly unmounted filesystem is mounted on a system with an incompatible architecture from data that was written near the head of the log. Update the log head/tail discovery code to run torn write detection only when the log is not clean. This means something other than an unmount record resides at the head of the log and log recovery is imminent. It is a requirement to run log recovery on the same type of host that had written the content of the dirty log and therefore CRC failures are legitimate corruptions in that scenario. Reported-by: Jan Beulich <JBeulich@suse.com> Tested-by: Jan Beulich <JBeulich@suse.com> Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
2016-03-07xfs: refactor in-core log state update to helperBrian Foster
Once the record at the head of the log is identified and verified, the in-core log state is updated based on the record. This includes information such as the current head block and cycle, the start block of the last record written to the log, the tail lsn, etc. Once torn write detection is conditional, this logic will need to be reused. Factor the code to update the in-core log data structures into a new helper function. This patch does not change behavior. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
2016-03-07xfs: refactor unmount record detection into helperBrian Foster
Once the mount sequence has identified the head and tail blocks of the physical log, the record at the head of the log is located and examined for an unmount record to determine if the log is clean. This currently occurs after torn write verification of the head region of the log. This must ultimately be separated from torn write verification and may need to be called again if the log head is walked back due to a torn write (to determine whether the new head record is an unmount record). Separate this logic into a new helper function. This patch does not change behavior. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
2016-03-07xfs: separate log head record discovery from verificationBrian Foster
The code that locates the log record at the head of the log is buried in the log head verification function. This is fine when torn write verification occurs unconditionally, but this behavior is problematic for filesystems that might be moved across systems with different architectures. In preparation for separating examination of the log head for unmount records from torn write detection, lift the record location logic out of the log verification function and into the caller. This patch does not change behavior. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
2016-03-06Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client Pull ceph fix from Sage Weil: "This is a final commit we missed to align the protocol compatibility with the feature bits. It decodes a few extra fields in two different messages and reports EIO when they are used (not yet supported)" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: ceph: initial CEPH_FEATURE_FS_FILE_LAYOUT_V2 support
2016-03-06Merge tag 'upstream-4.5-rc7' of git://git.infradead.org/linux-ubifsLinus Torvalds
Pull UBI fix from Richard Weinberger: "This contains a single bug fix for UBI" * tag 'upstream-4.5-rc7' of git://git.infradead.org/linux-ubifs: ubi: Fix out of bounds write in volume update code
2016-03-06Merge branch 'for-linus-4.5-rc7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml Pull UML fixes from Richard Weinberger: "This contains three bug/build fixes" * 'for-linus-4.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: um: use %lx format specifiers for unsigned longs um: Export pm_power_off Revert "um: Fix get_signal() usage"
2016-03-06Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds
Pull MIPS fixes from Ralf Baechle: "Another round of fixes for 4.5: - Fix the use of an undocumented syntactial variant of the .type pseudo op which is not supported by the LLVM assembler. - Fix invalid initialization on S-cache-less systems. - Fix possible information leak from the kernel stack for SIGFPE. - Fix handling of copy_{from,to}_user() return value in KVM - Fix the last instance of irq_to_gpio() which now was causing build errors" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: traps: Fix SIGFPE information leak from `do_ov' and `do_trap_or_bp' MIPS: kvm: Fix ioctl error handling. MIPS: scache: Fix scache init with invalid line size. MIPS: Avoid variant of .type unsupported by LLVM Assembler MIPS: jz4740: Fix surviving instance of irq_to_gpio()
2016-03-06Merge tag 'powerpc-4.5-5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: - cxl: Fix PSL timebase synchronization detection from Frederic Barrat - Fix oops when destroying hw_breakpoint event from Ravi Bangoria - Avoid lbarx on e5500 from Scott Wood * tag 'powerpc-4.5-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/fsl-book3e: Avoid lbarx on e5500 powerpc/hw_breakpoint: Fix oops when destroying hw_breakpoint event cxl: Fix PSL timebase synchronization detection
2016-03-06Merge branch 'i2c/for-current' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fix from Wolfram Sang: "One I2C bugfix ensuring correct memory allocation in a driver" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: brcmstb: allocate correct amount of memory for regmap
2016-03-06Merge tag 'usb-4.5-rc7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are some USB driver ids for 4.5-rc7, and the removal of a driver we merged in 4.5-rc1 but it turns out it's not needed as the hardware is the same as a driver we already have in the tree. This was only figured out after doing a lot of cleanup on it, gotta love vendor-provided drivers... The new device ids for the devices for this driver will be added later on when testing is completed, but for now, we will remove the driver to keep people from accidentally cleaning it up. All of these have been in linux-next for a while with no reported issues" * tag 'usb-4.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: USB: qcserial: add Sierra Wireless EM74xx device ID Revert "USB: serial: add Moxa UPORT 11x0 driver" USB: serial: option: add support for Quectel UC20 USB: serial: option: add support for Telit LE922 PID 0x1045 USB: cp210x: Add ID for Parrot NMEA GPS Flight Recorder USB: qcserial: add Dell Wireless 5809e Gobi 4G HSPA+ (rev3) usb: chipidea: otg: change workqueue ci_otg as freezable
2016-03-05um: use %lx format specifiers for unsigned longsColin Ian King
static analysis from cppcheck detected %x being used for unsigned longs: [arch/x86/um/os-Linux/task_size.c:112]: (warning) %x in format string (no. 1) requires 'unsigned int' but the argument type is 'unsigned long'. Use %lx instead of %x Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2016-03-05um: Export pm_power_offRichard Weinberger
...modules are using this symbol. Export it like all other archs to. Signed-off-by: Richard Weinberger <richard@nod.at>
2016-03-05Revert "um: Fix get_signal() usage"Richard Weinberger
Commit db2f24dc240856fb1d78005307f1523b7b3c121b was plain wrong. I did not realize the we are allowed to loop here. In fact we have to loop and must not return to userspace before all SIGSEGVs have been delivered. Other archs do this directly in their entry code, UML does it here. Reported-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2016-03-05ubi: Fix out of bounds write in volume update codeRichard Weinberger
ubi_start_leb_change() allocates too few bytes. ubi_more_leb_change_data() will write up to req->upd_bytes + ubi->min_io_size bytes. Cc: stable@vger.kernel.org Signed-off-by: Richard Weinberger <richard@nod.at> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-03-05Merge tag 'sound-4.5-rc7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "It's our tradition to get a high volume of fixes late at rc7: this time, X32 ABI breakage was found and this resulted in a high number LOCs. The necessary changes to ALSA core codes were fairly straightforward, and more importantly, they are specific to X32, thus should be safe to apply. Other than that, rather a collection of small fixes: - Removal of the code that blocks too long at closing the OSS sequencer client (which was spotted by syzkaller, unsurprisingly) - Fixes races at HD-audio HDMI i915 audio binding - a few HDSP/HDPM zero-division fixes - Quirks for HD-audio and USB-audio as usual" * tag 'sound-4.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda - hdmi defer to register acomp eld notifier ALSA: hda - hdmi add wmb barrier for audio component ALSA: hda - Fix mic issues on Acer Aspire E1-472 ALSA: seq: oss: Don't drain at closing a client ALSA: usb-audio: Add a quirk for Plantronics DA45 ALSA: hdsp: Fix wrong boolean ctl value accesses ALSA: hdspm: Fix zero-division ALSA: hdspm: Fix wrong boolean ctl value accesses ALSA: timer: Fix ioctls for X32 ABI ALSA: timer: Fix broken compat timer user status ioctl ALSA: rawmidi: Fix ioctls X32 ABI ALSA: rawmidi: Use comapt_put_timespec() ALSA: pcm: Fix ioctls for X32 ABI ALSA: ctl: Fix ioctls for X32 ABI
2016-03-05Merge tag 'dmaengine-fix-4.5-rc7' of ↵Linus Torvalds
git://git.infradead.org/users/vkoul/slave-dma Pull dmaengine fix from Vinod Koul: "One minor fix on pxa driver to fix the cyclic dma tranfers" * tag 'dmaengine-fix-4.5-rc7' of git://git.infradead.org/users/vkoul/slave-dma: dmaengine: pxa_dma: fix cyclic transfers
2016-03-05Merge tag 'media/v4.5-4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media fixes from Mauro Carvalho Chehab: - some last time changes before we stablize the new entity function integer numbers at uAPI - probe: fix erroneous return value on i2c/adp1653 driver - fix tx 5v detect regression on adv7604 driver - fix missing unlock on error in vpfe_prepare_pipeline() on davinci_vpfe driver * tag 'media/v4.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: [media] media: Sanitise the reserved fields of the G_TOPOLOGY IOCTL arguments [media] media.h: postpone connectors entities [media] media.h: use hex values for range offsets, move connectors base up. [media] adv7604: fix tx 5v detect regression [media] media.h: get rid of MEDIA_ENT_F_CONN_TEST [media] [for,v4.5] media.h: increase the spacing between function ranges [media] media: i2c/adp1653: probe: fix erroneous return value [media] media: davinci_vpfe: fix missing unlock on error in vpfe_prepare_pipeline()
2016-03-05drm/radeon: Fix error handling in radeon_flip_work_func.Mario Kleiner
This is a port of the patch "drm/amdgpu: Fix error handling in amdgpu_flip_work_func." to fix the following problem for radeon as well which was reported against amdgpu: The patch e1d09dc0ccc6: "drm/amdgpu: Don't hang in amdgpu_flip_work_func on disabled crtc." from Feb 19, 2016, leads to the following static checker warning, as reported by Dan Carpenter in https://lists.freedesktop.org/archives/dri-devel/2016-February/101987.html drivers/gpu/drm/amd/amdgpu/amdgpu_display.c:127 amdgpu_flip_work_func() warn: should this be 'repcnt == -1' drivers/gpu/drm/amd/amdgpu/amdgpu_display.c:136 amdgpu_flip_work_func() error: double unlock 'spin_lock:&crtc->dev->event_lock' drivers/gpu/drm/amd/amdgpu/amdgpu_display.c:136 amdgpu_flip_work_func() error: double unlock 'irqsave:flags' This patch fixes both reported problems: Change post-decrement of repcnt to pre-decrement, so it can't underflow anymore, but still performs up to three repetitions - three is the maximum one could expect in practice. Move the spin_unlock_irqrestore to where it actually belongs. Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> 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> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-03-05drm/amdgpu: Fix error handling in amdgpu_flip_work_func.Mario Kleiner
The patch e1d09dc0ccc6: "drm/amdgpu: Don't hang in amdgpu_flip_work_func on disabled crtc." from Feb 19, 2016, leads to the following static checker warning, as reported by Dan Carpenter in https://lists.freedesktop.org/archives/dri-devel/2016-February/101987.html drivers/gpu/drm/amd/amdgpu/amdgpu_display.c:127 amdgpu_flip_work_func() warn: should this be 'repcnt == -1' drivers/gpu/drm/amd/amdgpu/amdgpu_display.c:136 amdgpu_flip_work_func() error: double unlock 'spin_lock:&crtc->dev->event_lock' drivers/gpu/drm/amd/amdgpu/amdgpu_display.c:136 amdgpu_flip_work_func() error: double unlock 'irqsave:flags' This patch fixes both reported problems: Change post-decrement of repcnt to pre-decrement, so it can't underflow anymore, but still performs up to three repetitions - three is the maximum one could expect in practice. Move the spin_unlock_irqrestore to where it actually belongs. Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> 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> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-03-05Merge remote-tracking branches 'asoc/fix/wm8985', 'asoc/fix/wm8994', ↵Mark Brown
'asoc/fix/wm8996', 'asoc/fix/wm9081' and 'asoc/fix/wm9713' into asoc-linus
2016-03-05Merge remote-tracking branches 'asoc/fix/samsung', 'asoc/fix/tlv320dac33', ↵Mark Brown
'asoc/fix/wl1273', 'asoc/fix/wm8753', 'asoc/fix/wm8904', 'asoc/fix/wm8958' and 'asoc/fix/wm8983' into asoc-linus
2016-03-05Merge remote-tracking branches 'asoc/fix/jack', 'asoc/fix/max98088', ↵Mark Brown
'asoc/fix/max98095', 'asoc/fix/omap', 'asoc/fix/pxa' and 'asoc/fix/qcom-be' into asoc-linus
2016-03-05Merge remote-tracking branches 'asoc/fix/ab8500', 'asoc/fix/adau17x1', ↵Mark Brown
'asoc/fix/adsp', 'asoc/fix/cs42l51', 'asoc/fix/da732x' and 'asoc/fix/fsl-ssi' into asoc-linus
2016-03-05Merge remote-tracking branch 'asoc/fix/intel' into asoc-linusMark Brown
2016-03-05Merge remote-tracking branch 'asoc/fix/dapm' into asoc-linusMark Brown
2016-03-04Merge branch 'libnvdimm-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvcimm fix from Dan Williams: "One straggling fix for NVDIMM support. The KVM/QEMU enabling for NVDIMMs has recently reached the point where it is able to accept some ACPI _DSM requests from a guest VM. However they immediately found that the 4.5-rc kernel is unusable because the kernel's 'nfit' driver fails to load upon seeing a valid "not supported" response from the virtual BIOS for an address range scrub command. It is not mandatory that a platform implement address range scrubbing, so this fix from Vishal properly treats the 'not supported' response as 'skip scrubbing and continue loading the driver'" * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: nfit: Continue init even if ARS commands are unimplemented
2016-03-04Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Two fairly simple fixes. One is a regression with ipr firmware loading caused by one of the trivial patches in the last merge window which failed to strip the \n from the file name string, so now the firmware loader no longer works leading to a lot of unhappy ipr users; fix by stripping the \n. The second is a memory leak within SCSI: the BLK_PREP_INVALID state was introduced a recent fix but we forgot to account for it correctly when freeing state, resulting in memory leakage. Add the correct state freeing in scsi_prep_return()" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: ipr: Fix regression when loading firmware SCSI: Free resources when we return BLKPREP_INVALID
2016-03-04Merge branch 'for-4.5-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata Pull libata fixes from Tejun Heo: "Assorted fixes for libata drivers. - Turns out HDIO_GET_32BIT ioctl was subtly broken all along. - Recent update to ahci external port handling was incorrectly marking hotpluggable ports as external making userland handle devices connected to those ports incorrectly. - ahci_xgene needs its own irq handler to work around a hardware erratum. libahci updated to allow irq handler override. - Misc driver specific updates" * 'for-4.5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: ata: ahci: don't mark HotPlugCapable Ports as external/removable ahci: Workaround for ThunderX Errata#22536 libata: Align ata_device's id on a cacheline Adding Intel Lewisburg device IDs for SATA pata-rb532-cf: get rid of the irq_to_gpio() call libata: fix HDIO_GET_32BIT ioctl ahci_xgene: Implement the workaround to fix the missing of the edge interrupt for the HOST_IRQ_STAT. ata: Remove the AHCI_HFLAG_EDGE_IRQ support from libahci. libahci: Implement the capability to override the generic ahci interrupt handler.