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2012-05-14Merge branch 'spear/13xx' into next/soc2Arnd Bergmann
* spear/13xx: pinctrl: SPEAr1310: Fix pin numbers for clcd_high_res SPEAr: Update MAINTAINERS and Documentation SPEAr13xx: Add defconfig SPEAr13xx: Add compilation support SPEAr13xx: Add dts and dtsi files pinctrl: Add SPEAr13xx pinctrl drivers pinctrl: SPEAr: Create macro for declaring GPIO PINS SPEAr13xx: Add common clock framework support SPEAr13xx: Add source files SPEAr13xx: Add header files Depends on clock, pinctrl and dt branches to go first. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-05-14pinctrl: SPEAr1310: Fix pin numbers for clcd_high_resViresh Kumar
Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2012-05-14SPEAr: Update MAINTAINERS and DocumentationViresh Kumar
This patchset updates MAINTAINERS files, makes shiraz as second Maintainer for SPEAr SoCs. It also updates Documentation mostly for SPEAr13xx. Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
2012-05-14SPEAr13xx: Add defconfigViresh Kumar
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
2012-05-14SPEAr13xx: Add compilation supportViresh Kumar
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
2012-05-14SPEAr13xx: Add dts and dtsi filesViresh Kumar
This patch adds machines/boards dts{i} files for SPEAr1310 and SPEAr1340. Both are based on ARM, Cortex A9 processor family. Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
2012-05-14pinctrl: Add SPEAr13xx pinctrl driversViresh Kumar
This adds pinctrl driver for SPEAr13xx family. SPEAr13xx family supports two machines: SPEAr1310 and SPEAr1340. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2012-05-14pinctrl: SPEAr: Create macro for declaring GPIO PINSViresh Kumar
Same GPIO pins declarations would be required for other SoCs and that will be a lot of lines of code. Its better to create common macros for it. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2012-05-14SPEAr13xx: Add common clock framework supportViresh Kumar
This patch adds SPEAr1310 and SPEAr1340's clock framework support. It is based on earlier support for SPEAr3xx family. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Reviewed-by: Mike Turquette <mturquette@ti.com>
2012-05-14SPEAr13xx: Add source filesViresh Kumar
This patch adds source files for SPEAr13xx Machines. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
2012-05-14SPEAr13xx: Add header filesViresh Kumar
This patch adds basic header files for SPEAr13xx Machines. Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
2012-05-14Merge branch 'spear/dt' into spear/clockArnd Bergmann
Conflicts: arch/arm/mach-spear3xx/clock.c arch/arm/mach-spear3xx/include/mach/generic.h arch/arm/mach-spear3xx/include/mach/misc_regs.h arch/arm/mach-spear3xx/spear320.c arch/arm/mach-spear6xx/clock.c arch/arm/mach-spear6xx/include/mach/misc_regs.h Resolve even more merge conflicts. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-05-14Merge branch 'spear/pinctrl' into spear/clockArnd Bergmann
Conflicts: arch/arm/mach-spear3xx/Makefile arch/arm/mach-spear3xx/clock.c arch/arm/mach-spear3xx/include/mach/generic.h arch/arm/mach-spear6xx/clock.c arch/arm/plat-spear/Makefile drivers/pinctrl/core.c This resolves some annoying merge conflicts. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-05-12Linux 3.4-rc7v3.4-rc7Linus Torvalds
.. and this should hopefully be the last -rc before final 3.4 release.
2012-05-12Merge 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: "I was hoping to be done with fixes for 3.4 but we got two branches from subarch maintainers the last couple of days. So here is one last(?) pull request for arm-soc containing 7 patches: - Five of them are for shmobile dealing with SMP setup and compile failures - The remaining two are for regressions on the Samsung platforms" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: EXYNOS: fix ctrlbit for exynos5_clk_pdma1 ARM: EXYNOS: use s5p-timer for UniversalC210 board ARM / mach-shmobile: Invalidate caches when booting secondary cores ARM / mach-shmobile: sh73a0 SMP TWD boot regression fix ARM / mach-shmobile: r8a7779 SMP TWD boot regression fix ARM: mach-shmobile: convert ag5evm to use the generic MMC GPIO hotplug helper ARM: mach-shmobile: convert mackerel to use the generic MMC GPIO hotplug helper
2012-05-12Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds
Pull a few more GPIO bug fixes from Grant Likely: "Oops, missed a couple. Here's an updated pull req for GPIO" A set of PCH bug fixes, and one patch to fix up compile warnings * tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6: gpio/exynos: Fix compiler warnings when non-exynos machines are selected gpio: pch9: Use proper flow type handlers
2012-05-12Merge branch 'v3.4-samsung-fixes-5' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes * 'v3.4-samsung-fixes-5' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: EXYNOS: fix ctrlbit for exynos5_clk_pdma1 ARM: EXYNOS: use s5p-timer for UniversalC210 board
2012-05-13ARM: EXYNOS: fix ctrlbit for exynos5_clk_pdma1Kukjin Kim
It should be (1 << 2) for ctrlbit of exynos5_clk_pdma1. Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-05-13ARM: EXYNOS: use s5p-timer for UniversalC210 boardMarek Szyprowski
Commit 069d4e743 ("ARM: EXYNOS4: Remove clock event timers using ARM private timers") removed support for local timers and forced to use MCT as event source. However MCT is not operating properly on early revision of EXYNOS4 SoCs. All UniversalC210 boards are based on it, so that commit broke support for it. This patch provides a workaround that enables UniversalC210 boards to boot again. s5p-timer is used as an event source, it works only for non-SMP builds. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-05-12Merge branch 'fixes' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/renesas into fixes By Guennadi Liakhovetski (2) and others via Rafael J. Wysocki: "[...] urgent fixes for Renesas ARM-based platforms. Four of these commits are fixes of regressions new in 3.4-rc and the last one is necessary for SMP to work on those systems in general." * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/renesas: ARM / mach-shmobile: Invalidate caches when booting secondary cores ARM / mach-shmobile: sh73a0 SMP TWD boot regression fix ARM / mach-shmobile: r8a7779 SMP TWD boot regression fix ARM: mach-shmobile: convert ag5evm to use the generic MMC GPIO hotplug helper ARM: mach-shmobile: convert mackerel to use the generic MMC GPIO hotplug helper
2012-05-12ARM / mach-shmobile: Invalidate caches when booting secondary coresMagnus Damm
Make sure L1 caches are invalidated when booting secondary cores. Needed to boot all mach-shmobile SMP systems that are using Cortex-A9 including sh73a0, r8a7779 and EMEV2. Thanks to imx and tegra guys for actual code. Signed-off-by: Magnus Damm <damm@opensource.se> Tested-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-12ARM / mach-shmobile: sh73a0 SMP TWD boot regression fixKuninori Morimoto
Fix SMP TWD boot regression on sh73a0 based platforms caused by: 4200b16 ARM: shmobile: convert to twd_local_timer_register() interface After the merge of the above commit it has been impossible to boot sh73a0 based SoCs with SMP enabled and CONFIG_HAVE_ARM_TWD=y. The kernel crashes at smp_init_cpus() timing which is before the console has been initialized, so to the user this looks like a kernel lock up without any particular error message. This patch fixes the regression on sh73a0 by moving the TWD registration code from smp_init_cpus() to sys_timer->init() time. This patch removed shmobile_twd_init() which is no longer needed Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-12ARM / mach-shmobile: r8a7779 SMP TWD boot regression fixMagnus Damm
Fix SMP TWD boot regression on r8a7779 based platforms caused by: 4200b16 ARM: shmobile: convert to twd_local_timer_register() interface After the merge of the above commit it has been impossible to boot r8a7779 based SoCs with SMP enabled and CONFIG_HAVE_ARM_TWD=y. The kernel crashes at smp_init_cpus() timing which is before the console has been initialized, so to the user this looks like a kernel lock up without any particular error message. This patch fixes the regression on r8a7779 by moving the TWD registration code from smp_init_cpus() to sys_timer->init() time. Signed-off-by: Magnus Damm <damm@opensource.se> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-12ARM: mach-shmobile: convert ag5evm to use the generic MMC GPIO hotplug helperGuennadi Liakhovetski
This also fixes the following modular mmc build failure: arch/arm/mach-shmobile/built-in.o: In function `mackerel_sdhi0_gpio_cd': pfc-sh7372.c:(.text+0x1138): undefined reference to `mmc_detect_change' on this platform by eliminating the use of an inline function, which calls into the mmc core. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Reviewed-by: Simon Horman <horms@verge.net.au> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-12ARM: mach-shmobile: convert mackerel to use the generic MMC GPIO hotplug helperGuennadi Liakhovetski
This also fixes the following modular mmc build failure: arch/arm/mach-shmobile/built-in.o: In function `ag5evm_sdhi0_gpio_cd': pfc-sh73a0.c:(.text+0x7c0): undefined reference to `mmc_detect_change' on this platform by eliminating the use of an inline function, which calls into the mmc core. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Tested-by: Simon Horman <horms@verge.net.au> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-12Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "This is a set of minor qla and virto fixes plus one major regression fix (oops in all legacy host drivers)." * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: [SCSI] virtio_scsi: fix TMF use-after-free [SCSI] fix oops in all legacy host adapters caused by 6f381fa [SCSI] qla2xxx: Update version number to 8.04.00.03-k. [SCSI] qla2xxx: Properly check for current state after the fabric-login request. [SCSI] qla2xxx: Proper completion to scsi-ml for scsi status task_set_full and busy. [SCSI] qla2xxx: Block flash access from application when device is initialized for ISP82xx. [SCSI] qla2xxx: Fix reset time out as qla2xxx not ack to reset request.
2012-05-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David S. Miller: 1) Since we do RCU lookups on ipv4 FIB entries, we have to test if the entry is dead before returning it to our caller. 2) openvswitch locking and packet validation fixes from Ansis Atteka, Jesse Gross, and Pravin B Shelar. 3) Fix PM resume locking in IGB driver, from Benjamin Poirier. 4) Fix VLAN header handling in vhost-net and macvtap, from Basil Gor. 5) Revert a bogus network namespace isolation change that was causing regressions on S390 networking devices. 6) If bonding decides to process and handle a LACPDU frame, we shouldn't bump the rx_dropped counter. From Jiri Bohac. 7) Fix mis-calculation of available TX space in r8169 driver when doing TSO, which can lead to crashes and/or hung device. From Julien Ducourthial. 8) SCTP does not validate cached routes properly in all cases, from Nicolas Dichtel. 9) Link status interrupt needs to be handled in ks8851 driver, from Stephen Boyd. 10) Use capable(), not cap_raised(), in connector/userns netlink code. From Eric W. Biederman via Andrew Morton. 11) Fix pktgen OOPS on module unload, from Eric Dumazet. 12) iwlwifi under-estimates SKB truesizes, also from Eric Dumazet. 13) Cure division by zero in SFC driver, from Ben Hutchings. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (26 commits) ks8851: Update link status during link change interrupt macvtap: restore vlan header on user read vhost-net: fix handle_rx buffer size bonding: don't increase rx_dropped after processing LACPDUs connector/userns: replace netlink uses of cap_raised() with capable() sctp: check cached dst before using it pktgen: fix crash at module unload Revert "net: maintain namespace isolation between vlan and real device" ehea: fix losing of NEQ events when one event occurred early igb: fix rtnl race in PM resume path ipv4: Do not use dead fib_info entries. r8169: fix unsigned int wraparound with TSO sfc: Fix division by zero when using one RX channel and no SR-IOV openvswitch: Validation of IPv6 set port action uses IPv4 header net: compare_ether_addr[_64bits]() has no ordering cdc_ether: Ignore bogus union descriptor for RNDIS devices bnx2x: bug fix when loading after SAN boot e1000: Silence sparse warnings by correcting type igb, ixgbe: netdev_tx_reset_queue incorrectly called from tx init path openvswitch: Release rtnl_lock if ovs_vport_cmd_build_info() failed. ...
2012-05-12Merge tag 'dm-3.4-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm Pull device-mapper fixes from Alasdair G Kergon: "Fix a couple of serious memory leaks in device-mapper thin provisioning and tidy its MODULE_DESCRIPTION. Mitigate occasional reported hangs associated with multipath scsi_dh module loading." * tag 'dm-3.4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm: dm mpath: check if scsi_dh module already loaded before trying to load dm thin: correct module description dm thin: fix unprotected use of prepared_discards list dm thin: reinstate missing mempool_free in cell_release_singleton
2012-05-12SPEAr: Update defconfigsViresh Kumar
This patch updates following configuration: - Update MTD specific configurations - Enables JFFS2 FS support - Updates 6xx defconfig, with recent changes done by Arnd in 6xx Kconfig Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Stefan Roese <sr@denx.de>
2012-05-12MAINTAINERS: Add myself as the cpufreq maintainerRafael J. Wysocki
Since cpufreq has no official maintainer at the moment, I'm willing to maintain it along some other power management core code I've been maintaining already. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-12SPEAr: Add SMI NOR partition info in dts filesViresh Kumar
This patch adds NOR partitions in all SPEAr boards dts files. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Stefan Roese <sr@denx.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-05-12SPEAr: Switch to common clock frameworkViresh Kumar
SPEAr SoCs used its own clock framework since now. From now on they will move to use common clock framework. This patch updates existing SPEAr machine support to adapt for common clock framework. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Reviewed-by: Mike Turquette <mturquette@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-05-12SPEAr: Call clk_prepare() before calling clk_enableViresh Kumar
With common clock framework, it is must to call clk_{un}prepare() before/after clk_{dis}enable. This patch fixes this for SPEAr timer. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Reviewed-by: Mike Turquette <mturquette@linaro.org>
2012-05-12SPEAr: clk: Add General Purpose Timer Synthesizer clockViresh Kumar
All SPEAr SoC's contain GPT Synthesizers. Their Fout is derived from following equations: Fout= Fin/((2 ^ (N+1)) * (M+1)) This patch adds in support for this type of clock. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Reviewed-by: Mike Turquette <mturquette@linaro.org>
2012-05-12SPEAr: clk: Add Fractional Synthesizer clockViresh Kumar
All SPEAr SoC's contain Fractional Synthesizers. Their Fout is derived from following equations: Fout = Fin / (2 * div) (division factor) div is 17 bits:- 0-13 (fractional part) 14-16 (integer part) div is (16-14 bits).(13-0 bits) (in binary) Fout = Fin/(2 * div) Fout = ((Fin / 10000)/(2 * div)) * 10000 Fout = (2^14 * (Fin / 10000)/(2^14 * (2 * div))) * 10000 Fout = (((Fin / 10000) << 14)/(2 * (div << 14))) * 10000 div << 14 is simply 17 bit value written at register. This patch adds in support for this type of clock. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Reviewed-by: Mike Turquette <mturquette@linaro.org>
2012-05-12SPEAr: clk: Add Auxiliary Synthesizer clockViresh Kumar
All SPEAr SoC's contain Auxiliary Synthesizers. Their Fout is derived based on values of eq, x and y. Fout from synthesizer can be given from two equations: Fout1 = (Fin * X/Y)/2 EQ1 Fout2 = Fin * X/Y EQ2 This patch adds in support for this type of clock. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Reviewed-by: Mike Turquette <mturquette@linaro.org>
2012-05-12SPEAr: clk: Add VCO-PLL Synthesizer clockViresh Kumar
All SPEAr SoC's contain PLLs. Their Fout is derived based on following equations - In normal mode vco = (2 * M[15:8] * Fin)/N - In Dithered mode vco = (2 * M[15:0] * Fin)/(256 * N) pll_rate = vco/2^p vco and pll are very closely bound to each other, "vco needs to program: mode, m & n" and "pll needs to program p", both share common enable/disable logic and registers. This patch adds in support for this type of clock. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Reviewed-by: Mike Turquette <mturquette@linaro.org>
2012-05-12SPEAr: Add DT bindings for SPEAr's timerViresh Kumar
All SPEAr SoC's use ST's Timer module. This patch adds device tree probing capability for that. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-05-12Merge branches 'depends/pinctrl/devel' and 'depends/rmk/clkdev' into ↵Arnd Bergmann
spear/pinctrl The spear/pinctrl branch has hard dependencies on both the pinctrl branch and the clkdev branch. We merge those here to fix it up without having to rebase a branch that has been pulled into other stable branches already. Conflicts: Documentation/driver-model/devres.txt Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-05-12dm mpath: check if scsi_dh module already loaded before trying to loadMike Snitzer
If the requested scsi_dh module is already loaded then skip request_module(). Multipath table loads can hang in an unnecessary __request_module. Reported-by: Ben Marzinski <bmarzins@redhat.com> Cc: stable@kernel.org Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-05-12dm thin: correct module descriptionAlasdair G Kergon
Remove duplicate copy of string "device-mapper" (DM_NAME) from MODULE_DESCRIPTION. Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-05-12dm thin: fix unprotected use of prepared_discards listMike Snitzer
Fix two places in commit 104655fd4dce ("dm thin: support discards") that didn't use pool->lock to protect against concurrent changes to the prepared_discards list. Without this fix, thin_endio() can race with process_discard(), leading to concurrent list_add()s that result in the processes locking up with an error like the following: WARNING: at lib/list_debug.c:32 __list_add+0x8f/0xa0() ... list_add corruption. next->prev should be prev (ffff880323b96140), but was ffff8801d2c48440. (next=ffff8801d2c485c0). ... Pid: 17205, comm: kworker/u:1 Tainted: G W O 3.4.0-rc3.snitm+ #1 Call Trace: [<ffffffff8103ca1f>] warn_slowpath_common+0x7f/0xc0 [<ffffffff8103cb16>] warn_slowpath_fmt+0x46/0x50 [<ffffffffa04f6ce6>] ? bio_detain+0xc6/0x210 [dm_thin_pool] [<ffffffff8124ff3f>] __list_add+0x8f/0xa0 [<ffffffffa04f70d2>] process_discard+0x2a2/0x2d0 [dm_thin_pool] [<ffffffffa04f6a78>] ? remap_and_issue+0x38/0x50 [dm_thin_pool] [<ffffffffa04f7c3b>] process_deferred_bios+0x7b/0x230 [dm_thin_pool] [<ffffffffa04f7df0>] ? process_deferred_bios+0x230/0x230 [dm_thin_pool] [<ffffffffa04f7e42>] do_worker+0x52/0x60 [dm_thin_pool] [<ffffffff81056fa9>] process_one_work+0x129/0x450 [<ffffffff81059b9c>] worker_thread+0x17c/0x3c0 [<ffffffff81059a20>] ? manage_workers+0x120/0x120 [<ffffffff8105eabe>] kthread+0x9e/0xb0 [<ffffffff814ceda4>] kernel_thread_helper+0x4/0x10 [<ffffffff8105ea20>] ? kthread_freezable_should_stop+0x70/0x70 [<ffffffff814ceda0>] ? gs_change+0x13/0x13 ---[ end trace 7e0a523bc5e52692 ]--- Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-05-12dm thin: reinstate missing mempool_free in cell_release_singletonMike Snitzer
Fix a significant memory leak inadvertently introduced during simplification of cell_release_singleton() in commit 6f94a4c45a6f744383f9f695dde019998db3df55 ("dm thin: fix stacked bi_next usage"). A cell's hlist_del() must be accompanied by a mempool_free(). Use __cell_release() to do this, like before. Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-05-11gpio/exynos: Fix compiler warnings when non-exynos machines are selectedSachin Kamat
Fixes the following compiler warnings: drivers/gpio/gpio-samsung.c: In function ‘samsung_gpiolib_init’: drivers/gpio/gpio-samsung.c:2980:1: warning: label ‘err_ioremap1’ defined but not used [-Wunused-label] drivers/gpio/gpio-samsung.c:2978:1: warning: label ‘err_ioremap2’ defined but not used [-Wunused-label] drivers/gpio/gpio-samsung.c:2976:1: warning: label ‘err_ioremap3’ defined but not used [-Wunused-label] drivers/gpio/gpio-samsung.c:2974:1: warning: label ‘err_ioremap4’ defined but not used [-Wunused-label] drivers/gpio/gpio-samsung.c:2722:55: warning: unused variable ‘gpio_base4’ [-Wunused-variable] drivers/gpio/gpio-samsung.c:455:32: warning: ‘exynos_gpio_cfg’ defined but not used [-Wunused-variable] drivers/gpio/gpio-samsung.c:2126:33: warning: ‘exynos4_gpios_1’ defined but not used [-Wunused-variable] drivers/gpio/gpio-samsung.c:2228:33: warning: ‘exynos4_gpios_2’ defined but not used [-Wunused-variable] drivers/gpio/gpio-samsung.c:2373:33: warning: ‘exynos4_gpios_3’ defined but not used [-Wunused-variable] Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-05-11gpio: pch9: Use proper flow type handlersThomas Gleixner
Jean-Francois Dagenais reported: Configuring a gpio pin with the gpio-pch driver with "IRQF_TRIGGER_LOW | IRQF_ONESHOT" generates an interrupt storm for threaded ISR until the ISR thread actually gets to physically clear the interrupt on the triggering chip!! The immediate observable symptom is the high CPU usage for my ISR thread task and the interrupt count in /proc/interrupts incrementing radically. The driver is wrong in several ways: 1) Using handle_simple_irq() does not provide proper flow control handling. In the case of oneshot threaded handlers for the demultiplexed interrupts this results in an interrupt storm because the simple handler does not deal with masking/unmasking. Even without threaded oneshot handlers an interrupt storm for level type interrupts can easily be triggered when the interrupt is disabled and the interrupt line is activated from the device. 2) Acknowlegding the demultiplexed interrupt before calling the handler is wrong for level type interrupts. 3) The set_type function unconditionally enables the interrupt. It's supposed to set the type and nothing else. The unmasking is done by the core code. Move the acknowledge code into a separate function and add it to the demux irqchip callbacks. Remove the unconditional enabling from the set_type() callback and set the proper flow handlers depending on the selected type (level/edge). Reported-and-tested-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-05-11Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds
Pull GPIO omap bug fix from Grant Likely. * tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6: gpio/omap: fix incorrect initialization of omap_gpio_mod_init
2012-05-11Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull another powerpc irq fix from Benjamin Herrenschmidt: "It looks like my previous fix for the lazy irq masking problem wasn't quite enough. There was another problem related to performance monitor interrupts acting as NMIs leaving the flags in an incorrect state. Here's a fix that finally seems to make perf solid again." * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/irq: Fix another case of lazy IRQ state getting out of sync
2012-05-11Merge branch '3.4-urgent' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending Pull target fix from Nicholas Bellinger: "This patch removes some incorrect legacy code to free se_lun_acl memory in the NodeACL release path that could potentially trigger an OOPS during shutdown once dynamic -> explicit initiator NodeACL conversion has occurred. That said, we've been able to trigger an OOPS in v4.0 code for this special case when the associated MappedLUNs had not also been made explicit based on active TPG LUN layout during the conversion, so it really makes senses to go ahead and drop this extra cruft to avoid any possible issues here. This ends up only effecting iscsi-target module code (it's the only user) and is CC'ed to stable." * '3.4-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: target: Drop incorrect se_lun_acl release for dynamic -> explict ACL conversion
2012-05-12powerpc/irq: Fix another case of lazy IRQ state getting out of syncBenjamin Herrenschmidt
So we have another case of paca->irq_happened getting out of sync with the HW irq state. This can happen when a perfmon interrupt occurs while soft disabled, as it will return to a soft disabled but hard enabled context while leaving a stale PACA_IRQ_HARD_DIS flag set. This patch fixes it, and also adds a test for the condition of those flags being out of sync in arch_local_irq_restore() when CONFIG_TRACE_IRQFLAGS is enabled. This helps catching those gremlins faster (and so far I can't seem see any anymore, so that's good news). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-05-11ks8851: Update link status during link change interruptStephen Boyd
If a link change interrupt comes in we just clear the interrupt and continue along without notifying the upper networking layers that the link has changed. Use the mii_check_link() function to update the link status whenever a link change interrupt occurs. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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