summaryrefslogtreecommitdiffstats
path: root/drivers
AgeCommit message (Collapse)Author
2014-06-17rt2x00: fix rfkill regression on rt2500pciStanislaw Gruszka
As reported by Niels, starting rfkill polling during device probe (commit e2bc7c5, generally sane change) broke rfkill on rt2500pci device. I considered that bug as some initalization issue, which should be fixed on rt2500pci specific code. But after several attempts (see bug report for details) we fail to find working solution. Hence I decided to revert to old behaviour on rt2500pci to fix regression. Additionally patch also unregister rfkill on device remove instead of ifconfig down, what was another issue introduced by bad commit. Bug report: https://bugzilla.kernel.org/show_bug.cgi?id=73821 Fixes: e2bc7c5f3cb8 ("rt2x00: Fix rfkill_polling register function.") Cc: stable@vger.kernel.org Bisected-by: Niels <nille0386@googlemail.com> Reported-and-tested-by: Niels <nille0386@googlemail.com> Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-17b43: fix frequency reported on G-PHY with /new/ firmwareRafał Miłecki
Support for firmware rev 508+ was added years ago, but we never noticed it reports channel in a different way for G-PHY devices. Instead of offset from 2400 MHz it simply passes channel id (AKA hw_value). So far it was (most probably) affecting monitor mode users only, but the following recent commit made it noticeable for quite everybody: commit 3afc2167f60a327a2c1e1e2600ef209a3c2b75b7 Author: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Date: Tue Mar 4 16:50:13 2014 +0200 cfg80211/mac80211: ignore signal if the frame was heard on wrong channel Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Cc: stable@vger.kernel.org Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-17rt2800usb:fix hang during firmware loadMichael Braun
The device 057c:8501 (AVM Fritz! WLAN v2 rev. B) boots into a state that does not actually require loading a firmware file. The vendors driver finds out about this by checking a firmware state register, so this patch adds this here. Finally, with this patch applied, my wifi dongle actually becomes useful (scan + connect to wpa network works). Signed-off-by: Michael Braun <michael-dev@fami-braun.de> Acked-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-17rt2800usb:fix efuse detectionMichael Braun
The device 057c:8501 (AVM Fritz! WLAN v2 rev. B) currently does not load. One thing observed is that the vendors driver detects EFUSE mode for this device, but rt2800usb does not. This is due to rt2800usb lacking a check for the firmware mode present in the vendors driver, that this patch adopts for rt2800usb. With this patch applied, the 'RF chipset' detection does no longer fail. Signed-off-by: Michael Braun <michael-dev@fami-braun.de> Acked-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-17libahci_platform: Fail when PHY required but PHY support disabledMikko Perttunen
ahci_platform_get_resources handles resource management for platform AHCI drivers, including getting a possible PHY from the device tree. Since not all drivers need a PHY, it ignores -ENODEV and -ENOSYS from devm_get_phy. However, when the PHY subsystem is mistakenly disabled, -ENOSYS can be returned even when a PHY is needed. This patch modifies the -ENOSYS case to check if a "phys" device tree node exists. If it exists, then clearly the PHY subsystem is mistakenly disabled and the driver cannot work, ahci_platform_get_resources will fail and propagate the error. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2014-06-17misc: vexpress: fix error handling vexpress_syscfg_regmap_init()Dan Carpenter
This function should be returning an ERR_PTR() on failure instead of NULL. Also there is a use after free bug if regmap_init() fails because we free "func" and then dereference doing the return. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-06-17remoteproc: da8xx: don't select CMA on no-MMUArnd Bergmann
We can only use CMA on systems that have an MMU, because of the requirement to use memory migration. NOMMU systems are rather constrained to start with, but it seems reasonable to assume that DMA allocations can still succeed in the constrained case for remoteproc on NOMMU, so this patch changes the da8xx implementation to not rely on CMA when the MMU is disabled. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Ohad Ben-Cohen <ohad@wizery.com> Cc: Robert Tivy <rtivy@ti.com>
2014-06-17bus/arm-cci: add dependency on OF && CPU_V7Arnd Bergmann
The arm-cci code uses device tree helpers for initialization that don't work on kernels built without CONFIG_OF. Further, it contains an inline assembly in cci_enable_port_for_self() that uses ARMv7 instructions and fails to build when targetting other ARM instruction set versions. This works around both issues by limiting the scope of the Kconfig symbol to platforms that can actually build this driver cleanly. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Shawn Guo <shawn.guo@linaro.org>
2014-06-17spi: sh-sci: fix use-after-free in sh_sci_spi_remove()Jürg Billeter
setbits() uses sp->membase. Signed-off-by: Jürg Billeter <j@bitron.ch> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-06-17spi/pxa2xx: fix incorrect SW mode chipselect setting for BayTrail LPSS SPIChew, Chiau Ee
It was observed that after module removal followed by insertion, the SW mode chipselect is not properly set. Thus causing transfer failure due to incorrect CS toggling. Signed-off-by: Chew, Chiau Ee <chiau.ee.chew@intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-06-17Merge tag 'v3.16-rc1' into i2c/for-nextWolfram Sang
Merge a stable base (Linux 3.16-rc1) Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-06-17i2c: sun6-p2wi: fix call to snprintfBoris BREZILLON
Fixes possible issue in case pdev name contains formatting characters. Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com> Reported-by: Kees Cook <keescook@google.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-06-17ACPI: use kstrto*() instead of simple_strto*()Christoph Jaeger
simple_strto*() are obsolete; use kstrto*() instead. Add proper error checking. Signed-off-by: Christoph Jaeger <christophjaeger@linux.com> Acked-by: David Rientjes <rientjes@google.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-06-17ACPI / battery: add quirk for Acer Aspire V5-573GAlexander Mezin
On Acer Aspire V5-573G battery notifications are sometimes triggered too early. For example, when AC is unplugged and notification is triggered, battery state is still reported as "Full", and changes to "Discharging" only after short delay, without any notification. This patch solves the problem by adding 1 second sleep. Similar quirk is already implemented in AC driver for other laptop. Signed-off-by: Alexander Mezin <mezin.alexander@gmail.com> Acked-by: Lan Tianyu <tianyu.lan@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-06-17ACPI / battery: use callback for setting up quirksAlexander Mezin
Use callback for setting up quirk instead of checking return code of dmi_check_system(). This change will allow using bat_dmi_table for other quirks. Signed-off-by: Alexander Mezin <mezin.alexander@gmail.com> Acked-by: Lan Tianyu <tianyu.lan@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-06-17ACPI / LPSS: Take I2C host controllers out of resetMika Westerberg
On Intel Baytrail, some I2C host controllers are held in reset when the OS gets control. This causes the driver to fail to detect the hardware properly. Fix this so that we make sure that the I2C host controller is not in reset when the driver gets probe'd. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-06-17Merge branch 'drm-next-3.16' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-next two fixes for the deep color support in radeon. * 'drm-next-3.16' of git://people.freedesktop.org/~agd5f/linux: drm/radeon: Bypass hw lut's for > 8 bpc framebuffer scanout. drm/radeon: use pixel formats instead of depth/bpp
2014-06-17Merge branch 'drm-nouveau-next' of ↵Dave Airlie
git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-next This is bigger because it regenerates the internal firmwares after a fix. * 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: drm/nouveau/doc: update the thermal documentation drm/nouveau/pwr: fix typo in fifo wrap handling drm/nv50/disp: fix a potential oops in supervisor handling drm/nouveau/disp/dp: don't touch link config after success drm/nouveau/kms: reference vblank for crtc during pageflip. drm/gk104/fb/ram: fixups from an earlier search+replace drm/nv50/gr: remove an unneeded write while initialising PGRAPH drm/nv50/gr: fix overlap while zeroing zcull regions drm/gf100-/gr: report class data to host on fwmthd failure drm/gk104/ibus: increase various random timeouts drm/gk104/clk: only touch divider for mode we'll be using
2014-06-17drm/nouveau/pwr: fix typo in fifo wrap handlingBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-17drm/nv50/disp: fix a potential oops in supervisor handlingBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-17drm/nouveau/disp/dp: don't touch link config after successBen Skeggs
I don't know of anything this fixes, but it seems wrong anyway. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-17drm/nouveau/kms: reference vblank for crtc during pageflip.Mario Kleiner
Need to drm_vblank_get/put() the crtc involved in a pending pageflip, or we might not get vblank irqs and updates of vblank counts and timestamps for pageflip events and flip completion. Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Cc: stable@vger.kernel.org
2014-06-17drm/gk104/fb/ram: fixups from an earlier search+replaceBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-17drm/nv50/gr: remove an unneeded write while initialising PGRAPHPierre Moreau
The blob does not seem to write at that place for my NVAC, though it does for my NV96, agreeing with what is done in the if/else structure below. I guess someone forgot to remove the line when the if/else was put in place. Signed-off-by: Pierre Moreau <pierre.morrow@free.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-17drm/nv50/gr: fix overlap while zeroing zcull regionsPierre Moreau
The specified stride was not correct, resulting in erases overlapping and part of the zcull regions being not erased at all. Signed-off-by: Pierre Moreau <pierre.morrow@free.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-17drm/gf100-/gr: report class data to host on fwmthd failureBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-17drm/gk104/ibus: increase various random timeoutsBen Skeggs
Fixes (at least) PTHERM accesses timing out at higher clock speeds. Values and registers taken from what the binary driver does. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-17drm/gk104/clk: only touch divider for mode we'll be usingBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-16hyperv: fix apparent cut-n-paste error in send path teardownDave Jones
c25aaf814a63: "hyperv: Enable sendbuf mechanism on the send path" added some teardown code that looks like it was copied from the recieve path above, but missed a variable name replacement. Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-16net: tile: fix unused variable warningChris Metcalf
'i' is unused in tile_net_dev_init() after commit d581ebf5a1f ("net: tile: Use helpers from linux/etherdevice.h to check/set MAC"). Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-16isdn: hisax: Drop duplicate Kconfig entryJean Delvare
There are 2 HISAX_AVM_A1_PCMCIA Kconfig entries. The kbuild system ignores the second one, and apparently nobody noticed the problem so far, so let's remove that second entry. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Karsten Keil <isdn@linux-pingi.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-16isdn: hisax: Merge Kconfig ifsJean Delvare
The first half of the HiSax config options is presented if ISDN_DRV_HISAX!=n, while the second half of the options is presented if ISDN_DRV_HISAX. That's the same, so merge both conditionals. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Karsten Keil <isdn@linux-pingi.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-16slcan: Port write_wakeup deadlock fix from slipTyler Hall
The commit "slip: Fix deadlock in write_wakeup" fixes a deadlock caused by a change made in both slcan and slip. This is a direct port of that fix. Signed-off-by: Tyler Hall <tylerwhall@gmail.com> Cc: Oliver Hartkopp <socketcan@hartkopp.net> Cc: Andre Naujoks <nautsch2@gmail.com> Cc: David S. Miller <davem@davemloft.net> Cc: linux-kernel@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-16slip: Fix deadlock in write_wakeupTyler Hall
Use schedule_work() to avoid potentially taking the spinlock in interrupt context. Commit cc9fa74e2a ("slip/slcan: added locking in wakeup function") added necessary locking to the wakeup function and 367525c8c2/ddcde142be ("can: slcan: Fix spinlock variant") converted it to spin_lock_bh() because the lock is also taken in timers. Disabling softirqs is not sufficient, however, as tty drivers may call write_wakeup from interrupt context. This driver calls tty->ops->write() with its spinlock held, which may immediately cause an interrupt on the same CPU and subsequent spin_bug(). Simply converting to spin_lock_irq/irqsave() prevents this deadlock, but causes lockdep to point out a possible circular locking dependency between these locks: (&(&sl->lock)->rlock){-.....}, at: slip_write_wakeup (&port_lock_key){-.....}, at: serial8250_handle_irq.part.13 The slip transmit is holding the slip spinlock when calling the tty write. This grabs the port lock. On an interrupt, the handler grabs the port lock and calls write_wakeup which grabs the slip lock. This could be a problem if a serial interrupt occurs on another CPU during the slip transmit. To deal with these issues, don't grab the lock in the wakeup function by deferring the writeout to a workqueue. Also hold the lock during close when de-assigning the tty pointer to safely disarm the worker and timers. This bug is easily reproducible on the first transmit when slip is used with the standard 8250 serial driver. [<c0410b7c>] (spin_bug+0x0/0x38) from [<c006109c>] (do_raw_spin_lock+0x60/0x1d0) r5:eab27000 r4:ec02754c [<c006103c>] (do_raw_spin_lock+0x0/0x1d0) from [<c04185c0>] (_raw_spin_lock+0x28/0x2c) r10:0000001f r9:eabb814c r8:eabb8140 r7:40070193 r6:ec02754c r5:eab27000 r4:ec02754c r3:00000000 [<c0418598>] (_raw_spin_lock+0x0/0x2c) from [<bf3a0220>] (slip_write_wakeup+0x50/0xe0 [slip]) r4:ec027540 r3:00000003 [<bf3a01d0>] (slip_write_wakeup+0x0/0xe0 [slip]) from [<c026e420>] (tty_wakeup+0x48/0x68) r6:00000000 r5:ea80c480 r4:eab27000 r3:bf3a01d0 [<c026e3d8>] (tty_wakeup+0x0/0x68) from [<c028a8ec>] (uart_write_wakeup+0x2c/0x30) r5:ed68ea90 r4:c06790d8 [<c028a8c0>] (uart_write_wakeup+0x0/0x30) from [<c028dc44>] (serial8250_tx_chars+0x114/0x170) [<c028db30>] (serial8250_tx_chars+0x0/0x170) from [<c028dffc>] (serial8250_handle_irq+0xa0/0xbc) r6:000000c2 r5:00000060 r4:c06790d8 r3:00000000 [<c028df5c>] (serial8250_handle_irq+0x0/0xbc) from [<c02933a4>] (dw8250_handle_irq+0x38/0x64) r7:00000000 r6:edd2f390 r5:000000c2 r4:c06790d8 [<c029336c>] (dw8250_handle_irq+0x0/0x64) from [<c028d2f4>] (serial8250_interrupt+0x44/0xc4) r6:00000000 r5:00000000 r4:c06791c4 r3:c029336c [<c028d2b0>] (serial8250_interrupt+0x0/0xc4) from [<c0067fe4>] (handle_irq_event_percpu+0xb4/0x2b0) r10:c06790d8 r9:eab27000 r8:00000000 r7:00000000 r6:0000001f r5:edd52980 r4:ec53b6c0 r3:c028d2b0 [<c0067f30>] (handle_irq_event_percpu+0x0/0x2b0) from [<c006822c>] (handle_irq_event+0x4c/0x6c) r10:c06790d8 r9:eab27000 r8:c0673ae0 r7:c05c2020 r6:ec53b6c0 r5:edd529d4 r4:edd52980 [<c00681e0>] (handle_irq_event+0x0/0x6c) from [<c006b140>] (handle_level_irq+0xe8/0x100) r6:00000000 r5:edd529d4 r4:edd52980 r3:00022000 [<c006b058>] (handle_level_irq+0x0/0x100) from [<c00676f8>] (generic_handle_irq+0x30/0x40) r5:0000001f r4:0000001f [<c00676c8>] (generic_handle_irq+0x0/0x40) from [<c000f57c>] (handle_IRQ+0xd0/0x13c) r4:ea997b18 r3:000000e0 [<c000f4ac>] (handle_IRQ+0x0/0x13c) from [<c00086c4>] (armada_370_xp_handle_irq+0x4c/0x118) r8:000003ff r7:ea997b18 r6:ffffffff r5:60070013 r4:c0674dc0 [<c0008678>] (armada_370_xp_handle_irq+0x0/0x118) from [<c0013840>] (__irq_svc+0x40/0x70) Exception stack(0xea997b18 to 0xea997b60) 7b00: 00000001 20070013 7b20: 00000000 0000000b 20070013 eab27000 20070013 00000000 ed10103e eab27000 7b40: c06790d8 ea997b74 ea997b60 ea997b60 c04186c0 c04186c8 60070013 ffffffff r9:eab27000 r8:ed10103e r7:ea997b4c r6:ffffffff r5:60070013 r4:c04186c8 [<c04186a4>] (_raw_spin_unlock_irqrestore+0x0/0x54) from [<c0288fc0>] (uart_start+0x40/0x44) r4:c06790d8 r3:c028ddd8 [<c0288f80>] (uart_start+0x0/0x44) from [<c028982c>] (uart_write+0xe4/0xf4) r6:0000003e r5:00000000 r4:ed68ea90 r3:0000003e [<c0289748>] (uart_write+0x0/0xf4) from [<bf3a0d20>] (sl_xmit+0x1c4/0x228 [slip]) r10:ed388e60 r9:0000003c r8:ffffffdd r7:0000003e r6:ec02754c r5:ea717eb8 r4:ec027000 [<bf3a0b5c>] (sl_xmit+0x0/0x228 [slip]) from [<c0368d74>] (dev_hard_start_xmit+0x39c/0x6d0) r8:eaf163c0 r7:ec027000 r6:ea717eb8 r5:00000000 r4:00000000 Signed-off-by: Tyler Hall <tylerwhall@gmail.com> Cc: Oliver Hartkopp <socketcan@hartkopp.net> Cc: Andre Naujoks <nautsch2@gmail.com> Cc: David S. Miller <davem@davemloft.net> Cc: linux-kernel@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-16vmxnet3: adjust ring sizes when interface is downNeil Horman
If ethtool is used to update ring sizes on a vmxnet3 interface that isn't running, the change isn't stored, meaning the ring update is effectively is ignored and lost without any indication to the user. Other network drivers store the ring size update so that ring allocation uses the new sizes next time the interface is brought up. This patch modifies vmxnet3 to behave this way as well Signed-off-by: Neil Horman <nhorman@tuxdriver.com> CC: "David S. Miller" <davem@davemloft.net> CC: Shreyas Bhatewara <sbhatewara@vmware.com> CC: "VMware, Inc." <pv-drivers@vmware.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-16cpufreq: cpufreq-cpu0: fix CPU_THERMAL dependencyArnd Bergmann
5fbfbcd3e842d ("cpufreq: cpufreq-cpu0: remove dependency on THERMAL and REGULATOR") was a little too quick in completely removing the dependency on the THERMAL driver. The problem is that while there are inline wrappers to turn the thermal API calls into empty functions, those do not help if the cpu-thermal driver is a loadable module and cpufreq-cpu0 is builtin. Since CONFIG_CPU_THERMAL is a bool option that decides whether the cpu code is built into the thermal module or not, we have to use a dependency on the thermal driver itself. However, if CPU_THERMAL is disabled, we don't need the dependency, hence the strange '!CPU_THERMAL || THERMAL' construct. Fixes: 5fbfbcd3e842d ("cpufreq: cpufreq-cpu0: remove dependency on THERMAL and REGULATOR") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-06-16OF: fix of_find_node_by_path() assumption that of_allnodes is rootFrank Rowand
of_find_node_by_path() is borked because of_allnodes is not guaranteed to contain the root of the tree after using any of the dynamic update functions because some other nodes ends up as of_allnodes. Fixes: c22e650e66b8 of: Make of_find_node_by_path() handle /aliases Reported-by: pantelis.antoniou@konsulko.com Signed-off-by: Frank Rowand <frank.rowand@sonymobile.com> Signed-off-by: Rob Herring <robh@kernel.org>
2014-06-16of: avoid format string parsing in kobject namesKees Cook
This makes sure a format string cannot leak into the kobject name that is constructed. (And splits the >80 character line.) Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Rob Herring <robh@kernel.org>
2014-06-16of/platform: Fix microblaze build failureGuenter Roeck
Commit bf5db2f (microblaze: Use generic device.h) removes the microblaze specific pdev_archdata and dma_mask. At the same time, commit 591c1ee (of: configure the platform device dma parameters) initializes the just removed field. This causes all microblaze builds to fail. Drop the unnecessary initialization. Cc: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Michal Simek <monstr@monstr.eu> Signed-off-by: Rob Herring <robh@kernel.org>
2014-06-16null_blk: fix softirq completions for queue_mode == 1Jens Axboe
Only blk-mq completions have payload attached to the request, for request_fn mode we have stored it in req->special. This fixes an oops with queue_mode=1 and softirq completions. Signed-off-by: Jens Axboe <axboe@fb.com>
2014-06-16b43: fix typo in Kconfig (make B43_BUSES_BCMA_AND_SSB the default for real)Rafał Miłecki
Reported-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-16rt2x00: disable TKIP on USBStanislaw Gruszka
On USB we can not get atomically TKIP key. We have to disable support for TKIP acceleration on USB hardware to avoid bug as showed bellow. [ 860.827243] BUG: scheduling while atomic: hostapd/3397/0x00000002 <snip> [ 860.827280] Call Trace: [ 860.827282] [<ffffffff81682ea6>] dump_stack+0x4d/0x66 [ 860.827284] [<ffffffff8167eb9b>] __schedule_bug+0x47/0x55 [ 860.827285] [<ffffffff81685bb3>] __schedule+0x733/0x7b0 [ 860.827287] [<ffffffff81685c59>] schedule+0x29/0x70 [ 860.827289] [<ffffffff81684f8a>] schedule_timeout+0x15a/0x2b0 [ 860.827291] [<ffffffff8105ac50>] ? ftrace_raw_event_tick_stop+0xc0/0xc0 [ 860.827294] [<ffffffff810c13c2>] ? __module_text_address+0x12/0x70 [ 860.827296] [<ffffffff81686823>] wait_for_completion_timeout+0xb3/0x140 [ 860.827298] [<ffffffff81080fc0>] ? wake_up_state+0x20/0x20 [ 860.827301] [<ffffffff814d5b3d>] usb_start_wait_urb+0x7d/0x150 [ 860.827303] [<ffffffff814d5cd5>] usb_control_msg+0xc5/0x110 [ 860.827305] [<ffffffffa02fb0c6>] rt2x00usb_vendor_request+0xc6/0x160 [rt2x00usb] [ 860.827307] [<ffffffffa02fb215>] rt2x00usb_vendor_req_buff_lock+0x75/0x150 [rt2x00usb] [ 860.827309] [<ffffffffa02fb393>] rt2x00usb_vendor_request_buff+0xa3/0xe0 [rt2x00usb] [ 860.827311] [<ffffffffa023d1a3>] rt2x00usb_register_multiread+0x33/0x40 [rt2800usb] [ 860.827314] [<ffffffffa05805f9>] rt2800_get_tkip_seq+0x39/0x50 [rt2800lib] [ 860.827321] [<ffffffffa0480f88>] ieee80211_get_key+0x218/0x2a0 [mac80211] [ 860.827322] [<ffffffff815cc68c>] ? __nlmsg_put+0x6c/0x80 [ 860.827329] [<ffffffffa051b02e>] nl80211_get_key+0x22e/0x360 [cfg80211] Cc: stable@vger.kernel.org Reported-and-tested-by: Peter Wu <lekensteyn@gmail.com> Reported-and-tested-by: Pontus Fuchs <pontus.fuchs@gmail.com> Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-16mwifiex: fix tx_info/rx_info overlap with PCIe dma_mappingChin-Ran Lo
On PCIe Tx data path, network interface specific tx_info parameters such as bss_num and bss_type are saved at "skb->cb + sizeof(dma_addr_t)" (returned by MWIFIEX_SKB_TXCB). Later mwifiex_map_pci_memory() called from mwifiex_pcie_send_data() will memcpy sizeof(struct mwifiex_dma_mapping) bytes to save PCIe DMA address and length information at beginning of skb->cb. This accidently overwrites bss_num and bss_type saved in skb->cb previously because bss_num/bss_type and mwifiex_dma_mapping data overlap. Similarly, on PCIe Rx data path, rx_info parameters overlaps with PCIe DMA address and length information too. Fix it by defining mwifiex_cb structure and having MWIFIEX_SKB_TXCB and MWIFIEX_SKB_RXCB return the correct address of tx_info/rx_info using the structure members. Also add a BUILD_BUG_ON to maks sure that mwifiex_cb structure doesn't exceed the size of skb->cb. Reviewed-by: Aaron Durbin <adurbin@chromium.org> Signed-off-by: Chin-Ran Lo <crlo@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-16b43: disable 5 GHz on G-PHYRafał Miłecki
This fixes regression introduced by adding some G-PHY devices to the list of dual band devices. There is simply no support for 5 GHz on G-PHY devices in b43. It results in: WARNING: CPU: 0 PID: 79 at drivers/net/wireless/b43/phy_g.c:75 b43_gphy_channel_switch+0x125/0x130 [b43]() b43-phy1 ERROR: PHY init: Channel switch to default failed Regression was introduced by the following commit: commit 773cfc508f4d64c14547ff8751b5cbd473124364 Author: Rafał Miłecki <zajec5@gmail.com> Date: Mon May 19 23:18:55 2014 +0200 b43: add more devices to the bands database Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-17clocksource: exynos_mct: Don't reset the counter during boot and resumeChirantan Ekbote
Unfortunately on some exynos systems, resetting the mct counter also resets the architected timer counter. This can cause problems if the architected timer driver has already been initialized because the kernel will think that the counter has wrapped around, causing a big jump in printk timestamps and delaying any scheduled clock events until the counter reaches the value it had before it was reset. The kernel code makes no assumptions about the initial value of the mct counter so there is no reason from a software perspective to clear the counter before starting it. This also fixes the problems described in the previous paragraph. Cc: Olof Johansson <olof@lixom.net> Cc: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Chirantan Ekbote <chirantan@chromium.org> Reviewed-by: Doug Anderson <dianders@chromium.org> Tested-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-06-16Merge remote-tracking branches 'regulator/fix/as3722', ↵Mark Brown
'regulator/fix/ltc3589' and 'regulator/fix/palmas' into regulator-linus
2014-06-16regulator: ltc3589: Use of_get_child_by_nameAxel Lin
of_find_node_by_name() walks the allnodes list, and can thus walk outside of the parent node. Use of_get_child_by_name() instead. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-06-16Revert "offb: Add palette hack for little endian"Benjamin Herrenschmidt
This reverts commit e1edf18b20076da83dd231dbd2146cbbc31c0b14. This patch was a misguided attempt at fixing offb for LE ppc64 kernels on BE qemu but is just wrong ... it breaks real LE/LE setups, LE with real HW, and existing mixed endian systems that did the fight thing with the appropriate device-tree property. Bad reviewing on my part, sorry. The right fix is to either make qemu change its endian when the guest changes endian (working on that) or to use the existing foreign endian support. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: <stable@vger.kernel.org> [v3.13+] ---
2014-06-16drm/i915, HD-audio: Don't continue probing when nomodeset is givenTakashi Iwai
When a machine is booted with nomodeset option, i915 driver skips the whole initialization. Meanwhile, HD-audio tries to bind wth i915 just by request_symbol() without knowing that the initialization was skipped, and eventually it hits WARN_ON() in i915_request_power_well() and i915_release_power_well() wrongly but still continues probing, even though it doesn't work at all. In this patch, both functions are changed to return an error in case of uninitialized state instead of WARN_ON(), so that HD-audio driver can give up HDMI controller initialization at the right time. Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: <stable@vger.kernel.org> [3.15] Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-06-16s390/ccwgroup: use ccwgroup_ungroup wrapperSebastian Ott
To ungroup and deregister the group device always use the ccwgroup_ungroup wrapper. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>