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2014-05-13nl80211: fix NL80211_FEATURE_P2P_DEVICE_NEEDS_CHANNEL APIJohannes Berg
My commit removing that also removed it from the header file which can break compilation of userspace that needed it, add it back for API/ABI compatibility purposes (but no code to implement anything for it.) Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-05-13phy: Add new Exynos5 USB 3.0 PHY driverVivek Gautam
Add a new driver for the USB 3.0 PHY on Exynos5 series of SoCs. The new driver uses the generic PHY framework and will interact with DWC3 controller present on Exynos5 series of SoCs. Also, created a new header file in linux/mfd/syscon/ for Exynos5 SoCs and put the required PMU offset definitions for the basic available PHYs. Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-05-13kernfs, sysfs, cgroup: restrict extra perm check on open to sysfsTejun Heo
The kernfs open method - kernfs_fop_open() - inherited extra permission checks from sysfs. While the vfs layer allows ignoring the read/write permissions checks if the issuer has CAP_DAC_OVERRIDE, sysfs explicitly denied open regardless of the cap if the file doesn't have any of the UGO perms of the requested access or doesn't implement the requested operation. It can be debated whether this was a good idea or not but the behavior is too subtle and dangerous to change at this point. After cgroup got converted to kernfs, this extra perm check also got applied to cgroup breaking libcgroup which opens write-only files with O_RDWR as root. This patch gates the extra open permission check with a new flag KERNFS_ROOT_EXTRA_OPEN_PERM_CHECK and enables it for sysfs. For sysfs, nothing changes. For cgroup, root now can perform any operation regardless of the permissions as it was before kernfs conversion. Note that kernfs still fails unimplemented operations with -EINVAL. While at it, add comments explaining KERNFS_ROOT flags. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Andrey Wagin <avagin@gmail.com> Tested-by: Andrey Wagin <avagin@gmail.com> Cc: Li Zefan <lizefan@huawei.com> References: http://lkml.kernel.org/g/CANaxB-xUm3rJ-Cbp72q-rQJO5mZe1qK6qXsQM=vh0U8upJ44+A@mail.gmail.com Fixes: 2bd59d48ebfb ("cgroup: convert to kernfs") Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-13Merge tag 'v3.15-rc4' into develLinus Walleij
Linux 3.15-rc4
2014-05-12clk: shmobile: r8a7779: Add clocks supportSimon Horman
The R8A7779 SoC has several clocks that are too custom to be supported in a generic driver. Those clocks are all fixed rate clocks with multiplier and divisor set according to boot mode configuration. Based on work for R-Car Gen2 SoCs by Laurent Pinchart. Cc: devicetree@vger.kernel.org Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-05-13Merge tag 'fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "Seems like we've had more fixes than usual this release cycle, but there's nothing in particular that we're doing differently. Perhaps it's just one of those cycles where more people are finding more regressions (and/or that the latency of when people actually test what's been in the tree for a while is catching up so that we get the bug reports now). The bigger changes here are are for TI and Marvell platforms: * Timing changes for GPMC (generic localbus) on OMAP causing some largeish DTS deltas. * Fixes to window allocation on PCI for mvebu touching drivers/ stuff. Patches have acks from subsystem maintainers where needed. * A fix from Thomas for a botched DT conversion in drivers/edma. There's a handful of other fixes for the above platforms as well as sunxi, at91, i.MX. I also included a MAINTAINER update for Broadcom, and a trivial move of a binding doc. I know you said you'd be offline this week, but I might as well post it for when you return. :)" I'm not quite offline yet. Doing a few pulls in the last hour before my internet goes away.. * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits) MAINTAINERS: update Broadcom ARM tree location and add an SoC family ARM: dts: i.MX53: Fix ipu register space size ARM: dts: kirkwood: fix mislocated pcie-controller nodes ARM: sunxi: Enable GMAC in sunxi_defconfig ARM: common: edma: Fix xbar mapping ARM: sun7i: Fix i2c4 base address ARM: Kirkwood: T5325: Fix double probe of Codec ARM: mvebu: enable the SATA interface on Armada 375 DB ARM: mvebu: specify I2C bus frequency on Armada 370 DB ARM: mvebu: use qsgmii phy-mode for Armada XP GP interfaces ARM: mvebu: fix NOR bus-width in Armada XP OpenBlocks AX3 Device Tree ARM: mvebu: fix NOR bus-width in Armada XP DB Device Tree ARM: mvebu: fix NOR bus-width in Armada XP GP Device Tree ARM: dts: AM3517: Disable absent IPs inherited from OMAP3 ARM: dts: OMAP2: Fix interrupts for OMAP2420 mailbox ARM: dts: OMAP5: Add mailbox dt node to fix boot warning ARM: OMAP5: Switch to THUMB mode if needed on secondary CPU ARM: dts: am437x-gp-evm: Do not reset gpio5 ARM: dts: omap3-igep0020: use SMSC9221 timings PCI: mvebu: split PCIe BARs into multiple MBus windows when needed ...
2014-05-13ARM: shmobile: r8a7791: Correct SYS-DMAC clock definesGeert Uytterhoeven
R-Car M2 has two MSTP bits for SYS-DMAC, not one. Also bring the naming in sync with the documentation. This issue was introduced in v3.14, in commit 4d8864c9e94ec727f1c675b9f6921525c360334b ("ARM: shmobile: r8a7791: Add clock index macros for DT sources"). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-12clk: Improve clk_ops documentationGeert Uytterhoeven
General: - Add parameter names to .round_rate() and .set_rate(). Documentation/clk.txt: - Add missing parameter for .set_rate(), - Add missing .debug_init(). include/linux/clk-provider.h: - Add parent rate documentation for .round_rate(), - Reorder documentation to match implementation order, - Add missing documentation for .init(). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-05-12clk: Fixup spacing in commentsGeert Uytterhoeven
- Remove spaces in front of TABs, - Correct indentation for some CLK_* flag descriptions. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-05-13clk: samsung: add clock controller driver for s3c2410, s3c2440 and s3c2442Heiko Stuebner
This driver can handle the clock controllers of the socs mentioned above, as they share a common clock tree with only small differences. The clock structure is built according to the manuals of the included SoCs and might include changes in comparison to the previous clock structure. As pll-rate-tables only the 12mhz variants are currently included. The original code was wrongly checking for 169mhz xti values [a 0 to much at the end], so the original 16mhz pll table would have never been included and its values are so obscure that I have no possibility to at least check their sane-ness. When using the formula from the manual the resulting frequency is near the table value but still slightly off. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-12mmc: core: Improve support for deferred regulatorsTim Kryger
Callers of mmc_regulator_get_supply could benefit from knowing if either of the regulators are present but not yet available. Since callers do not currently examine the return value, modify this function to return zero or -EPROBE_DEFER if either regulator get returns the same. Furthermore, since callers check vmmc/vqmmc using IS_ERR and can deal with absent regulators, switch to devm_regulator_get_optional. This has the added benefit of allowing this function to behave correctly even in the !CONFIG_REGULATOR case such that the stub can be removed. Signed-off-by: Tim Kryger <tim.kryger@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <chris@printf.net>
2014-05-12mmc: add support for HS400 mode of eMMC5.0Seungwon Jeon
This patch adds HS400 mode support for eMMC5.0 device. HS400 mode is high speed DDR interface timing from HS200. Clock frequency is up to 200MHz and only 8-bit bus width is supported. In addition, tuning process of HS200 is required to synchronize the command response on the CMD line because CMD input timing for HS400 mode is the same as HS200 mode. Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com> Reviewed-by: Jackey Shen <jackey.shen@amd.com> Tested-by: Jaehoon Chung <jh80.chung@samsung.com> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <chris@printf.net>
2014-05-12mmc: rework selection of bus speed modeSeungwon Jeon
Current implementation for bus speed mode selection is too complicated. This patch is to simplify the codes and remove some duplicate parts. The following changes are including: * Adds functions for each mode selection(HS, HS-DDR, HS200 and etc) * Rearranged the mode selection sequence with supported device type * Adds maximum speed for HS200 mode(hs200_max_dtr) * Adds field definition for HS_TIMING of EXT_CSD Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com> Tested-by: Jaehoon Chung <jh80.chung@samsung.com> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <chris@printf.net>
2014-05-12mmc: identify available device type to selectSeungwon Jeon
Device types which are supported by both host and device can be identified when EXT_CSD is read. There is no need to check host's capability anymore. Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com> Tested-by: Jaehoon Chung <jh80.chung@samsung.com> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <chris@printf.net>
2014-05-12mmc: drop the speed mode of card's stateSeungwon Jeon
Timing mode identifier has same role and can take the place of speed mode. This change removes all related speed mode. Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com> Tested-by: Jaehoon Chung <jh80.chung@samsung.com> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <chris@printf.net>
2014-05-12mmc: dw_mmc: remove unused member variable.Jaehoon Chung
Since using the device-tree, didn't use the callback pointer. So removed the unused callback pointer. When the set_power callback is used, it should be added in future. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <chris@printf.net>
2014-05-12ASoC: Remove runtime field from DAILars-Peter Clausen
This was initially removed in commit 6423c1875 ("ASoC: Remove runtime field from DAI"), but was, presumably by accident, brought back in commit f0fba2ad1 ("ASoC: multi-component - ASoC Multi-Component Support"). But has never been initialized to anything but NULL ever since. This commit removes it again. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-12ASoC: dapm: Handle SND_SOC_DAPM_REG() genericallyLars-Peter Clausen
Commit commit de9ba98b6d ("ASoC: dapm: Make widget power register settings more flexible") added generic support for on_val/off_val in the DAPM core. With this in place there is no need anymore for having a special event callback for SND_SOC_DAPM_REG() widgets. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-12vlan: rename __vlan_find_dev_deep() to __vlan_find_dev_deep_rcu()dingtianhong
The __vlan_find_dev_deep should always called in RCU, according David's suggestion, rename to __vlan_find_dev_deep_rcu looks more reasonable. Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-12net: rename local_df to ignore_dfWANG Cong
As suggested by several people, rename local_df to ignore_df, since it means "ignore df bit if it is set". Cc: Maciej Żenczykowski <maze@google.com> Cc: Florian Westphal <fw@strlen.de> Cc: David S. Miller <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Maciej Żenczykowski <maze@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-12srm/i915/chv: Add Cherryview PCI IDsVille Syrjälä
v2: Update to also fill in the new num_pipes field. v3: Rebase on top of the pciid extraction. v4: Switch from info->has*ring to info->ring mask. Also add VEBOX support whiel at it. v5: s/CHV_PCI_IDS/CHV_IDS/, and drop the trailing '\' Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-05-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: drivers/net/ethernet/altera/altera_sgdma.c net/netlink/af_netlink.c net/sched/cls_api.c net/sched/sch_api.c The netlink conflict dealt with moving to netlink_capable() and netlink_ns_capable() in the 'net' tree vs. supporting 'tc' operations in non-init namespaces. These were simple transformations from netlink_capable to netlink_ns_capable. The Altera driver conflict was simply code removal overlapping some void pointer cast cleanups in net-next. Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-12xen: refactor suspend pre/post hooksDavid Vrabel
New architectures currently have to provide implementations of 5 different functions: xen_arch_pre_suspend(), xen_arch_post_suspend(), xen_arch_hvm_post_suspend(), xen_mm_pin_all(), and xen_mm_unpin_all(). Refactor the suspend code to only require xen_arch_pre_suspend() and xen_arch_post_suspend(). Signed-off-by: David Vrabel <david.vrabel@citrix.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2014-05-12ext4: fix data integrity sync in ordered modeNamjae Jeon
When we perform a data integrity sync we tag all the dirty pages with PAGECACHE_TAG_TOWRITE at start of ext4_da_writepages. Later we check for this tag in write_cache_pages_da and creates a struct mpage_da_data containing contiguously indexed pages tagged with this tag and sync these pages with a call to mpage_da_map_and_submit. This process is done in while loop until all the PAGECACHE_TAG_TOWRITE pages are synced. We also do journal start and stop in each iteration. journal_stop could initiate journal commit which would call ext4_writepage which in turn will call ext4_bio_write_page even for delayed OR unwritten buffers. When ext4_bio_write_page is called for such buffers, even though it does not sync them but it clears the PAGECACHE_TAG_TOWRITE of the corresponding page and hence these pages are also not synced by the currently running data integrity sync. We will end up with dirty pages although sync is completed. This could cause a potential data loss when the sync call is followed by a truncate_pagecache call, which is exactly the case in collapse_range. (It will cause generic/127 failure in xfstests) To avoid this issue, we can use set_page_writeback_keepwrite instead of set_page_writeback, which doesn't clear TOWRITE tag. Cc: stable@vger.kernel.org Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Reviewed-by: Jan Kara <jack@suse.cz>
2014-05-12mmc: mmci: Enforce mmc capabilities through DTUlf Hansson
Remove the option to provide the flags for mmc capabilities as platform data, enforce it through DT. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2014-05-12mmc: mmci: Enforce DT for signal direction and feedback clockUlf Hansson
Remove the option to provide signal direction configuration and feeback clock as platform data, enforce it through DT. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2014-05-12net: filter: make BPF conversion more readableAlexei Starovoitov
Introduce BPF helper macros to define instructions (similar to old BPF_STMT/BPF_JUMP macros) Use them while converting classic BPF to internal and in BPF testsuite later. Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-12clk: hisi: add clk-hix5hd2.cZhangfei Gao
Signed-off-by: Haifeng Yan <haifeng.yan@linaro.org> Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
2014-05-09NVMe: Update namespace and controller identify structures to the 1.1a specDimitri John Ledkov
Controller: add CNTLID, AVSCC, APSTA, NVSCC, ACWU, SGLS fields. Namespace: add NMIC, RESCAP, EUI64 fields. EUI64 is specifically interesting, since it can be used to construct an UEFI NVMe device path for a boot entry. As per NVM Express 1.1a spec: http://www.nvmexpress.org/wp-content/uploads/NVM-Express-1_1a.pdf Signed-off-by: Dimitri John Ledkov <dimitri.ledkov@canonical.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2014-05-09Bluetooth: Store TX power level for connectionAndrzej Kaczmarek
This patch adds support to store local TX power level for connection when reply for HCI_Read_Transmit_Power_Level is received. Signed-off-by: Andrzej Kaczmarek <andrzej.kaczmarek@tieto.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-05-09Merge branch 'for-davem' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless John W. Linville says: ==================== pull request: wireless 2014-05-08 This one is all from Johannes: "Here are a few small fixes for the current cycle: radiotap TX flags were wrong (fix by Bob), Chun-Yeow fixes an SMPS issue with mesh interfaces, Eliad fixes a locking bug and a cfg80211 state problem and finally Henning sent me a fix for IBSS rate information." Please let me know if there are problems! ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-09mtd: nand: refactor erase_cmd() to return chip statusBrian Norris
The nand_chip::erase_cmd callback previously served a dual purpose; for one, it allowed a per-flash-chip override, so that AG-AND devices could use a different erase command than other NAND. These AND devices were dropped in commit 14c6578683367b1e7af0c3c09e872b45a45183a7 (mtd: nand: remove AG-AND support). On the other hand, some drivers (denali and doc-g4) need to use this sort of callback to implement controller-specific erase operations. To make the latter operation easier for some drivers (e.g., ST's new BCH NAND driver), it helps if the command dispatch and wait functions can be lumped together, rather than called separately. This patch does two things: 1. Pull the call to chip->waitfunc() into chip->erase_cmd(), and return the status from this callback 2. Rename erase_cmd() to just erase(), since this callback does a little more than just send a command Signed-off-by: Brian Norris <computersforpeace@gmail.com> Tested-by: Lee Jones <lee.jones@linaro.org>
2014-05-09percpu-refcount: implement percpu_ref_tryget()Tejun Heo
Implement percpu_ref_tryget() which fails if the refcnt already reached zero. Note that this is different from the recently renamed percpu_ref_tryget_live() which fails if the refcnt has been killed and is draining the remaining references. percpu_ref_tryget() succeeds on a killed refcnt as long as its current refcnt is above zero. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Kent Overstreet <kmo@daterainc.com>
2014-05-09percpu-refcount: rename percpu_ref_tryget() to percpu_ref_tryget_live()Tejun Heo
percpu_ref_tryget() is different from the usual tryget semantics in that it fails if the refcnt is in its dying stage even if the refcnt hasn't reached zero yet. We're about to introduce the more conventional tryget and the current one has only one user. Let's rename it to percpu_ref_tryget_live() so that it explicitly signifies the peculiarities of its semantics. This is pure rename. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Kent Overstreet <kmo@daterainc.com>
2014-05-09Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Peter Anvin: "A somewhat unpleasantly large collection of small fixes. The big ones are the __visible tree sweep and a fix for 'earlyprintk=efi,keep'. It was using __init functions with predictably suboptimal results. Another key fix is a build fix which would produce output that simply would not decompress correctly in some configuration, due to the existing Makefiles picking up an unfortunate local label and mistaking it for the global symbol _end. Additional fixes include the handling of 64-bit numbers when setting the vdso data page (a latent bug which became manifest when i386 started exporting a vdso with time functions), a fix to the new MSR manipulation accessors which would cause features to not get properly unblocked, a build fix for 32-bit userland, and a few new platform quirks" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, vdso, time: Cast tv_nsec to u64 for proper shifting in update_vsyscall() x86: Fix typo in MSR_IA32_MISC_ENABLE_LIMIT_CPUID macro x86: Fix typo preventing msr_set/clear_bit from having an effect x86/intel: Add quirk to disable HPET for the Baytrail platform x86/hpet: Make boot_hpet_disable extern x86-64, build: Fix stack protector Makefile breakage with 32-bit userland x86/reboot: Add reboot quirk for Certec BPC600 asmlinkage: Add explicit __visible to drivers/*, lib/*, kernel/* asmlinkage, x86: Add explicit __visible to arch/x86/* asmlinkage: Revert "lto: Make asmlinkage __visible" x86, build: Don't get confused by local symbols x86/efi: earlyprintk=efi,keep fix
2014-05-09blk-mq: implement new and more efficient tagging schemeJens Axboe
blk-mq currently uses percpu_ida for tag allocation. But that only works well if the ratio between tag space and number of CPUs is sufficiently high. For most devices and systems, that is not the case. The end result if that we either only utilize the tag space partially, or we end up attempting to fully exhaust it and run into lots of lock contention with stealing between CPUs. This is not optimal. This new tagging scheme is a hybrid bitmap allocator. It uses two tricks to both be SMP friendly and allow full exhaustion of the space: 1) We cache the last allocated (or freed) tag on a per blk-mq software context basis. This allows us to limit the space we have to search. The key element here is not caching it in the shared tag structure, otherwise we end up dirtying more shared cache lines on each allocate/free operation. 2) The tag space is split into cache line sized groups, and each context will start off randomly in that space. Even up to full utilization of the space, this divides the tag users efficiently into cache line groups, avoiding dirtying the same one both between allocators and between allocator and freeer. This scheme shows drastically better behaviour, both on small tag spaces but on large ones as well. It has been tested extensively to show better performance for all the cases blk-mq cares about. Signed-off-by: Jens Axboe <axboe@fb.com>
2014-05-09blk-mq: initialize struct request fields individuallyChristoph Hellwig
This allows us to avoid a non-atomic memset over ->atomic_flags as well as killing lots of duplicate initializations. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2014-05-09OMAPDSS: Add DSS features for AM43xxSathya Prakash M R
Add DSS features for AM43xx. Signed-off-by: Sathya Prakash M R <sathyap@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-05-09gpio: Add helpers for optional GPIOsThierry Reding
Introduce gpiod_get_optional() and gpiod_get_index_optional() helpers that make it easier for drivers to handle optional GPIOs. Currently in order to handle optional GPIOs, a driver needs to special case error handling for -ENOENT, such as this: gpio = gpiod_get(dev, "foo"); if (IS_ERR(gpio)) { if (PTR_ERR(gpio) != -ENOENT) return PTR_ERR(gpio); gpio = NULL; } if (gpio) { /* set up GPIO */ } With these new helpers the above is reduced to: gpio = gpiod_get_optional(dev, "foo"); if (IS_ERR(gpio)) return PTR_ERR(gpio); if (gpio) { /* set up GPIO */ } While at it, device-managed variants of these functions are also provided. Signed-off-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09OMAPDSS: remove unused macrosTomi Valkeinen
Macros to_dss_driver() and to_dss_device() are no longer used, and the latter doesn't even work. Remove them. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-05-09mac80211: handle failed restart/resume betterJohannes Berg
When the driver fails during HW restart or resume, the whole stack goes into a very confused state with interfaces being up while the hardware is down etc. Address this by shutting down everything; we'll run into a lot of warnings in the process but that's better than having the whole stack get messed up. Reviewed-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-05-09video/omap: fix modular buildArnd Bergmann
The framebuffer layer can be a loadable module, which forces omapfb to be a module as well. However, this breaks the lcd drivers, which are linked into the omapfb driver but each have their own module_init() function. To solve this, we split out the lcd drivers into separate modules and export omapfb_register_panel, which is the only interface required between the main omapfb driver and the lcd panel drivers. We also have to introduce a new Kconfig symbol for H3, since that lcd driver has a dependency on TPS65010, which we can express better in Kconfig than Makefile syntax. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: linux-fbdev@vger.kernel.org Cc: linux-omap@vger.kernel.org Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-05-09video: omap2dss: fix LPAE warningsArnd Bergmann
If LPAE is enabled, dma_addr_t is 64 bit, so we have to change a few type for everything in this driver to match again. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: linux-fbdev@vger.kernel.org Cc: linux-omap@vger.kernel.org Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-05-09mfd: stmpe: add optional regulatorsLinus Walleij
The STMPE has VCC and VIO supply lines, and sometimes (as on Ux500) this comes from a software-controlled regulator. Make it possible to supply the STMPE with power from these regulators. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-08ping: move ping_group_range out of CONFIG_SYSCTLCong Wang
Similarly, when CONFIG_SYSCTL is not set, ping_group_range should still work, just that no one can change it. Therefore we should move it out of sysctl_net_ipv4.c. And, it should not share the same seqlock with ip_local_port_range. BTW, rename it to ->ping_group_range instead. Cc: David S. Miller <davem@davemloft.net> Cc: Francois Romieu <romieu@fr.zoreil.com> Reported-by: Stefan de Konink <stefan@konink.de> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-08ipv4: move local_port_range out of CONFIG_SYSCTLCong Wang
When CONFIG_SYSCTL is not set, ip_local_port_range should still work, just that no one can change it. Therefore we should move it out of sysctl_inet.c. Also, rename it to ->ip_local_ports instead. Cc: David S. Miller <davem@davemloft.net> Cc: Francois Romieu <romieu@fr.zoreil.com> Reported-by: Stefan de Konink <stefan@konink.de> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-08Merge tag 'trace-fixes-v3.15-rc4-v2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fixes from Steven Rostedt: "This contains two fixes. The first is a long standing bug that causes bogus data to show up in the refcnt field of the module_refcnt tracepoint. It was introduced by a merge conflict resolution back in 2.6.35-rc days. The result should be 'refcnt = incs - decs', but instead it did 'refcnt = incs + decs'. The second fix is to a bug that was introduced in this merge window that allowed for a tracepoint funcs pointer to be used after it was freed. Moving the location of where the probes are released solved the problem" * tag 'trace-fixes-v3.15-rc4-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracepoint: Fix use of tracepoint funcs after rcu free trace: module: Maintain a valid user count
2014-05-08Merge tag 'mfd-mmc-fixes-3.15-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull mmc/rtsx revert from Lee Jones. * tag 'mfd-mmc-fixes-3.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: mmc: rtsx: Revert "mmc: rtsx: add support for pre_req and post_req"
2014-05-08nfsd: clean up fh_auth usageChristoph Hellwig
Use fh_fsid when reffering to the fsid part of the filehandle. The variable length auth field envisioned in nfsfh wasn't ever implemented. Also clean up some lose ends around this and document the file handle format better. Btw, why do we even export nfsfh.h to userspace? The file handle very much is kernel private, and nothing in nfs-utils include the header either. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-05-08Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem