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2016-05-11MIPS: do away with ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIBLinus Walleij
This replaces: - "select ARCH_REQUIRE_GPIOLIB" with "select GPIOLIB" as this can now be selected directly. - "select ARCH_WANT_OPTIONAL_GPIOLIB" with no dependency: GPIOLIB is now selectable by everyone, so we need not declare our intent to select it. When ordering the symbols the following rationale was used: if the selects were in alphabetical order, I moved select GPIOLIB to be in alphabetical order, but if the selects were not maintained in alphabetical order, I just replaced "select ARCH_REQUIRE_GPIOLIB" with "select GPIOLIB". Cc: Michael Büsch <m@bues.ch> Cc: linux-mips@linux-mips.org Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-04-26arc: select GPIOLIB directlyLinus Walleij
Instead of indirectly selecting GPIOLIB via the ARCH_REQUIRE_GPIOLIB symbol, just select GPIOLIB. Cc: Michael Büsch <m@bues.ch> Cc: linux-snps-arc@lists.infradead.org Acked-by: Vineet Gupta <vgupt@synopsys.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-04-26sparc: remove ARCH_WANT_OPTIONAL_GPIOLIBLinus Walleij
This symbols is not needed to get access to selecting the GPIOLIB anymore: any arch can select GPIOLIB. Cc: Michael Büsch <m@bues.ch> Cc: sparclinux@vger.kernel.org Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-04-26cris: do away with ARCH_REQUIRE_GPIOLIBLinus Walleij
Replace "select ARCH_REQUIRE_GPIOLIB" with "select GPIOLIB" as this can now be selected directly. Cc: Michael Büsch <m@bues.ch> Cc: Mikael Starvik <starvik@axis.com> Cc: linux-cris-kernel@axis.com Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-04-26nios2: remove ARCH_WANT_OPTIONAL_GPIOLIBLinus Walleij
This symbols is not needed to get access to selecting the GPIOLIB anymore: any arch can select GPIOLIB. Cc: Michael Büsch <m@bues.ch> Cc: nios2-dev@lists.rocketboards.org Acked-by: Ley Foon Tan <lftan@altera.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-04-26m68k: do away with ARCH_REQUIRE_GPIOLIBLinus Walleij
Replace "select ARCH_REQUIRE_GPIOLIB" with "select GPIOLIB" as this can now be selected directly. Cc: Michael Büsch <m@bues.ch> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: linux-m68k@lists.linux-m68k.org Acked-by: Greg Ungerer <gerg@linux-m68k.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-04-26xtensa: remove ARCH_WANT_OPTIONAL_GPIOLIBLinus Walleij
This symbols is not needed to get access to selecting the GPIOLIB anymore: any arch can select GPIOLIB. Cc: Michael Büsch <m@bues.ch> Cc: Chris Zankel <chris@zankel.net> Cc: linux-xtensa@linux-xtensa.org Acked-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-04-26alpha: remove ARCH_WANT_OPTIONAL_GPIOLIBLinus Walleij
This symbols is not needed to get access to selecting the GPIOLIB anymore: any arch can select GPIOLIB. Cc: Michael Büsch <m@bues.ch> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: linux-alpha@vger.kernel.org Acked-by: Matt Turner <mattst88@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-04-26metag: remove ARCH_WANT_OPTIONAL_GPIOLIBLinus Walleij
This symbols is not needed to get access to selecting the GPIOLIB anymore: any arch can select GPIOLIB. Cc: Michael Büsch <m@bues.ch> Cc: linux-metag@vger.kernel.org Acked-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-04-26avr32: do away with ARCH_REQUIRE_GPIOLIBLinus Walleij
Replace "select ARCH_REQUIRE_GPIOLIB" with "select GPIOLIB" as this can now be selected directly. Cc: Michael Büsch <m@bues.ch> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Acked-by: Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-31powerpc: ppc4xx: drop unused variableLinus Walleij
commit 0d36fe65f58391712e11a6621075f373216e5f00 "powerpc: ppc4xx: use gpiochip data pointer" made the mm_gc local variable in ppc4xx_gpio_set() redundant, and when GCC treats warnings as errors this happens: arch/powerpc/sysdev/ppc4xx_gpio.c: In function 'ppc4xx_gpio_set': arch/powerpc/sysdev/ppc4xx_gpio.c:93:26: error: unused variable 'mm_gc' [-Werror=unused-variable] struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc); ^ cc1: all warnings being treated as errors Reported-by: kbuild test robot <fengguang.wu@intel.com> Cc: Anatolij Gustschin <agust@denx.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-30unicore32: gpio: switch to gpiochip_add_data()Linus Walleij
We're planning to remove the gpiochip_add() function to swith to gpiochip_add_data() with NULL for data argument. Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-30sh: x3proto-gpio: switch to gpiochip_add_data()Linus Walleij
We're planning to remove the gpiochip_add() function to swith to gpiochip_add_data() with NULL for data argument. Cc: Paul Mundt <lethal@linux-sh.org> Cc: linux-sh@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-30sh: sdk7786-gpio: switch to gpiochip_add_data()Linus Walleij
We're planning to remove the gpiochip_add() function to swith to gpiochip_add_data() with NULL for data argument. Cc: Paul Mundt <lethal@linux-sh.org> Cc: linux-sh@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-30powerpc: simple-gpio: use gpiochip data pointerLinus Walleij
This makes the driver use the data pointer added to the gpio_chip to store a pointer to the state container instead of relying on container_of(). Cc: Anton Vorontsov <anton@enomsg.org> Cc: Anatolij Gustschin <agust@denx.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-30powerpc: ppc4xx: use gpiochip data pointerLinus Walleij
This makes the driver use the data pointer added to the gpio_chip to store a pointer to the state container instead of relying on container_of(). Cc: Anatolij Gustschin <agust@denx.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-30powerpc: cpm_common: use gpiochip data pointerLinus Walleij
This makes the driver use the data pointer added to the gpio_chip to store a pointer to the state container instead of relying on container_of(). Cc: Anatolij Gustschin <agust@denx.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-30powerpc: sysdev: cpm1: use gpiochip data pointerLinus Walleij
This makes the driver use the data pointer added to the gpio_chip to store a pointer to the state container instead of relying on container_of(). Cc: Anatolij Gustschin <agust@denx.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-30powerpc: mpc8349emitx: use gpiochip data pointerLinus Walleij
This makes the driver use the data pointer added to the gpio_chip to store a pointer to the state container instead of relying on container_of(). Cc: Anatolij Gustschin <agust@denx.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-30powerpc: mpc52xx_gpt: use gpiochip data pointerLinus Walleij
This makes the driver use the data pointer added to the gpio_chip to store a pointer to the state container instead of relying on container_of(). Cc: Anatolij Gustschin <agust@denx.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-25Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge fourth patch-bomb from Andrew Morton: "A lot more stuff than expected, sorry. A bunch of ocfs2 reviewing was finished off. - mhocko's oom-reaper out-of-memory-handler changes - ocfs2 fixes and features - KASAN feature work - various fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (42 commits) thp: fix typo in khugepaged_scan_pmd() MAINTAINERS: fill entries for KASAN mm/filemap: generic_file_read_iter(): check for zero reads unconditionally kasan: test fix: warn if the UAF could not be detected in kmalloc_uaf2 mm, kasan: stackdepot implementation. Enable stackdepot for SLAB arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections mm, kasan: add GFP flags to KASAN API mm, kasan: SLAB support kasan: modify kmalloc_large_oob_right(), add kmalloc_pagealloc_oob_right() include/linux/oom.h: remove undefined oom_kills_count()/note_oom_kill() mm/page_alloc: prevent merging between isolated and other pageblocks drivers/memstick/host/r592.c: avoid gcc-6 warning ocfs2: extend enough credits for freeing one truncate record while replaying truncate records ocfs2: extend transaction for ocfs2_remove_rightmost_path() and ocfs2_update_edge_lengths() before to avoid inconsistency between inode and et ocfs2/dlm: move lock to the tail of grant queue while doing in-place convert ocfs2: solve a problem of crossing the boundary in updating backups ocfs2: fix occurring deadlock by changing ocfs2_wq from global to local ocfs2/dlm: fix BUG in dlm_move_lockres_to_recovery_list ocfs2/dlm: fix race between convert and recovery ocfs2: fix a deadlock issue in ocfs2_dio_end_io_write() ...
2016-03-25mm, kasan: stackdepot implementation. Enable stackdepot for SLABAlexander Potapenko
Implement the stack depot and provide CONFIG_STACKDEPOT. Stack depot will allow KASAN store allocation/deallocation stack traces for memory chunks. The stack traces are stored in a hash table and referenced by handles which reside in the kasan_alloc_meta and kasan_free_meta structures in the allocated memory chunks. IRQ stack traces are cut below the IRQ entry point to avoid unnecessary duplication. Right now stackdepot support is only enabled in SLAB allocator. Once KASAN features in SLAB are on par with those in SLUB we can switch SLUB to stackdepot as well, thus removing the dependency on SLUB stack bookkeeping, which wastes a lot of memory. This patch is based on the "mm: kasan: stack depots" patch originally prepared by Dmitry Chernenkov. Joonsoo has said that he plans to reuse the stackdepot code for the mm/page_owner.c debugging facility. [akpm@linux-foundation.org: s/depot_stack_handle/depot_stack_handle_t] [aryabinin@virtuozzo.com: comment style fixes] Signed-off-by: Alexander Potapenko <glider@google.com> Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Andrey Konovalov <adech.fo@gmail.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Konstantin Serebryany <kcc@google.com> Cc: Dmitry Chernenkov <dmitryc@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-03-25arch, ftrace: for KASAN put hard/soft IRQ entries into separate sectionsAlexander Potapenko
KASAN needs to know whether the allocation happens in an IRQ handler. This lets us strip everything below the IRQ entry point to reduce the number of unique stack traces needed to be stored. Move the definition of __irq_entry to <linux/interrupt.h> so that the users don't need to pull in <linux/ftrace.h>. Also introduce the __softirq_entry macro which is similar to __irq_entry, but puts the corresponding functions to the .softirqentry.text section. Signed-off-by: Alexander Potapenko <glider@google.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Andrey Konovalov <adech.fo@gmail.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Cc: Konstantin Serebryany <kcc@google.com> Cc: Dmitry Chernenkov <dmitryc@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-03-25[IA64] Enable preadv2 and pwritev2 syscalls for ia64Tony Luck
New system calls added in: f17d8b35452cab31a70d224964cd583fb2845449 vfs: vfs: Define new syscalls preadv2,pwritev2 Signed-off-by: Tony Luck <tony.luck@intel.com>
2016-03-25Merge tag 'asm-generic-4.6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic Pull asm-generic updates from Arnd Bergmann: "There are only three patches this time, most other changes to files in include/asm-generic tend to go through the tree of whoever depends on the change. Two patches are cleanups for stuff that is no longer needed, the main change is to adapt the generic version of BUG_ON() for CONFIG_BUG=n to make it behave consistently with BUG(). This avoids undefined behavior along with a number of warnings about that undefined behavior in randconfig builds when we keep going on after hitting a BUG_ON()" * tag 'asm-generic-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: asm-generic: remove old nonatomic-io wrapper files asm-generic: default BUG_ON(x) to if(x)BUG() asm-generic: page.h: Remove useless get_user_page and free_user_page
2016-03-25Merge tag 'for-linus-20160324' of git://git.infradead.org/linux-mtdLinus Torvalds
Pull MTD updates from Brian Norris: "NAND: - Add sunxi_nand randomizer support - begin refactoring NAND ecclayout structs - fix pxa3xx_nand dmaengine usage - brcmnand: fix support for v7.1 controller - add Qualcomm NAND controller driver SPI NOR: - add new ls1021a, ls2080a support to Freescale QuadSPI - add new flash ID entries - support bottom-block protection for Winbond flash - support Status Register Write Protect - remove broken QPI support for Micron SPI flash JFFS2: - improve post-mount CRC scan efficiency General: - refactor bcm63xxpart parser, to later extend for NAND - add writebuf size parameter to mtdram Other minor code quality improvements" * tag 'for-linus-20160324' of git://git.infradead.org/linux-mtd: (72 commits) mtd: nand: remove kerneldoc for removed function parameter mtd: nand: Qualcomm NAND controller driver dt/bindings: qcom_nandc: Add DT bindings mtd: nand: don't select chip in nand_chip's block_bad op mtd: spi-nor: support lock/unlock for a few Winbond chips mtd: spi-nor: add TB (Top/Bottom) protect support mtd: spi-nor: add SPI_NOR_HAS_LOCK flag mtd: spi-nor: use BIT() for flash_info flags mtd: spi-nor: disallow further writes to SR if WP# is low mtd: spi-nor: make lock/unlock bounds checks more obvious and robust mtd: spi-nor: silently drop lock/unlock for already locked/unlocked region mtd: spi-nor: wait for SR_WIP to clear on initial unlock mtd: nand: simplify nand_bch_init() usage mtd: mtdswap: remove useless if (!mtd->ecclayout) test mtd: create an mtd_oobavail() helper and make use of it mtd: kill the ecclayout->oobavail field mtd: nand: check status before reporting timeout mtd: bcm63xxpart: give width specifier an 'int', not 'size_t' mtd: mtdram: Add parameter for setting writebuf size mtd: nand: pxa3xx_nand: kill unused field 'drcmr_cmd' ...
2016-03-25Merge branch 'parisc-4.6-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc updates from Helge Deller: "This patchset adds stack usage debug info for parisc and metag (on both the stack grows upwards), switches to the new generic realative extable search and sort routines, drops the long time ago removed syscalls alloc_hugepages and free_hugepages and wires up the new preadv2 and pwritev2 syscalls" * 'parisc-4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Wire up preadv2 and pwritev2 syscalls parisc: Use generic extable search and sort routines parisc: Panic immediately when panic_on_oops parisc,metag: Implement CONFIG_DEBUG_STACK_USAGE option parisc: Drop alloc_hugepages and free_hugepages syscalls
2016-03-25Merge tag 'arm64-upstream' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull second set of arm64 updates from Catalin Marinas: - KASLR bug fixes: use callee-saved register, boot-time I-cache maintenance - inv_entry asm macro fix (EL0 check typo) - pr_notice("Virtual kernel memory layout...") splitting - Clean-ups: use p?d_set_huge consistently, allow preemption around copy_to_user_page, remove unused __local_flush_icache_all() * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: mm: allow preemption in copy_to_user_page arm64: consistently use p?d_set_huge arm64: kaslr: use callee saved register to preserve SCTLR across C call arm64: Split pr_notice("Virtual kernel memory layout...") into multiple pr_cont() arm64: drop unused __local_flush_icache_all() arm64: fix KASLR boot-time I-cache maintenance arm64/kernel: fix incorrect EL0 check in inv_entry macro
2016-03-25Merge tag 'armsoc-dt2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull more ARM DT changes from Arnd Bergmann: "Here are some final updates for ARM SoC specific dts files: - The i.MX changes were sent relatively late, and had a dependency on the clk tree, so I delayed that a bit. Support for the new i.MX6qp SoC and a couple of new boards is added in this branch. - Uniphier renames a few files to match the final product names that were decided by the company, kudos to the kernel developer(s) for getting support upstream before the product release. Also two boards are added. The patches were posted early enough and nice overall, but we forgot to apply them and decided to give it some more time in linux-next - at91 has two small bug fixes" * tag 'armsoc-dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits) ARM: dts: at91: sama5d4 Xplained: don't disable hsmci regulator ARM: dts: at91: sama5d3 Xplained: don't disable hsmci regulator ARM: dts: uniphier: add pinmux node for I2C ch4 ARM: dts: uniphier: add @{address} to EEPROM node ARM: dts: uniphier: add PH1-Pro4 Sanji board support ARM: dts: uniphier: add PH1-Pro4 Ace board support ARM: dts: uniphier: enable I2C channel 2 of ProXstream2 Gentil board ARM: dts: uniphier: add EEPROM node for ProXstream2 Gentil board ARM: dts: uniphier: add reference clock nodes ARM: dts: uniphier: rework UniPhier System Bus nodes ARM: dts: uniphier: factor out ranges property of support card arm64: dts: uniphier: rename PH1-LD10 to PH1-LD20 ARM: dts: imx53-qsb: Fix gpio button polarity ARM: dts: vfxxx: Add DAC node for Vybrid SoC ARM: dts: imx6q: add missing links between ipu2 and mipi dsi ARM: dts: imx: Add support for Advantech/GE B850v3 ARM: dts: imx: Add support for Advantech/GE B650v3 ARM: dts: imx: Add support for Advantech/GE B450v3 ARM: dts: imx: Add support for Advantech/GE Bx50v3 ARM: dts: imx: Add Advantech BA-16 Qseven module ...
2016-03-25Merge tag 'for-4.6' of git://git.osdn.jp/gitroot/uclinux-h8/linuxLinus Torvalds
Pull h8300 updates from Yoshinori Sato: "Various h8300 fixes" * tag 'for-4.6' of git://git.osdn.jp/gitroot/uclinux-h8/linux: h8300: switch EARLYCON h8300: dts: Rename the serial port clock to fck
2016-03-24Merge tag 'trace-v4.6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: "Nothing major this round. Mostly small clean ups and fixes. Some visible changes: - A new flag was added to distinguish traces done in NMI context. - Preempt tracer now shows functions where preemption is disabled but interrupts are still enabled. Other notes: - Updates were done to function tracing to allow better performance with perf. - Infrastructure code has been added to allow for a new histogram feature for recording live trace event histograms that can be configured by simple user commands. The feature itself was just finished, but needs a round in linux-next before being pulled. This only includes some infrastructure changes that will be needed" * tag 'trace-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (22 commits) tracing: Record and show NMI state tracing: Fix trace_printk() to print when not using bprintk() tracing: Remove redundant reset per-CPU buff in irqsoff tracer x86: ftrace: Fix the misleading comment for arch/x86/kernel/ftrace.c tracing: Fix crash from reading trace_pipe with sendfile tracing: Have preempt(irqs)off trace preempt disabled functions tracing: Fix return while holding a lock in register_tracer() ftrace: Use kasprintf() in ftrace_profile_tracefs() ftrace: Update dynamic ftrace calls only if necessary ftrace: Make ftrace_hash_rec_enable return update bool tracing: Fix typoes in code comment and printk in trace_nop.c tracing, writeback: Replace cgroup path to cgroup ino tracing: Use flags instead of bool in trigger structure tracing: Add an unreg_all() callback to trigger commands tracing: Add needs_rec flag to event triggers tracing: Add a per-event-trigger 'paused' field tracing: Add get_syscall_name() tracing: Add event record param to trigger_ops.func() tracing: Make event trigger functions available tracing: Make ftrace_event_field checking functions available ...
2016-03-24Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Thomas Gleixner: "A small set of fixes for the usual ARM/SOC irqchip drivers - A set of fixes for mbigen to handle multiple devices in a hardware module proper - A cleanup for the mbigen config option which was pointlessly user configurable. - A cleanup for tegra replacing open coded functionality by the proper core function The config cleanup touches arch/arm64/Kconfig.platforms to select the irq chip for the related platform" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/mbigen: Make CONFIG_HISILICON_IRQ_MBIGEN a hidden option ARM64: Kconfig: Select mbigen interrupt controller on Hisilicon platform irqchip/mbigen: Handle multiple device nodes in a mbigen module irqchip/mbigen: Adjust DT bindings to handle multiple devices in a module irqchip/tegra: Switch to use irq_domain_free_irqs_common
2016-03-24Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "This tree contains various perf fixes on the kernel side, plus three hw/event-enablement late additions: - Intel Memory Bandwidth Monitoring events and handling - the AMD Accumulated Power Mechanism reporting facility - more IOMMU events ... and a final round of perf tooling updates/fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits) perf llvm: Use strerror_r instead of the thread unsafe strerror one perf llvm: Use realpath to canonicalize paths perf tools: Unexport some methods unused outside strbuf.c perf probe: No need to use formatting strbuf method perf help: Use asprintf instead of adhoc equivalents perf tools: Remove unused perf_pathdup, xstrdup functions perf tools: Do not include stringify.h from the kernel sources tools include: Copy linux/stringify.h from the kernel tools lib traceevent: Remove redundant CPU output perf tools: Remove needless 'extern' from function prototypes perf tools: Simplify die() mechanism perf tools: Remove unused DIE_IF macro perf script: Remove lots of unused arguments perf thread: Rename perf_event__preprocess_sample_addr to thread__resolve perf machine: Rename perf_event__preprocess_sample to machine__resolve perf tools: Add cpumode to struct perf_sample perf tests: Forward the perf_sample in the dwarf unwind test perf tools: Remove misplaced __maybe_unused perf list: Fix documentation of :ppp perf bench numa: Fix assertion for nodes bitfield ...
2016-03-24Merge tag 'at91-fixes' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into next/dt2 Merge "First fixes batch for AT91 on 4.6 - DT only fixes" from Nicolas Ferre: - prevent the boards from having glitches when inserting/removing SD card on sama5d3/d4 Xplained. The regulators should be kept on. * tag 'at91-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91: ARM: dts: at91: sama5d4 Xplained: don't disable hsmci regulator ARM: dts: at91: sama5d3 Xplained: don't disable hsmci regulator ARM: dts: at91: sama5d2 Xplained: add leds node ARM: dts: at91: sama5d2 Xplained: add user push button ARM: dts: at91: sama5d2 Xplained: set pin muxing for usb gadget and usb host ARM: dts: at91: sama5d2: add nand0 and nfc0 nodes ARM: dts: at91: sama5d2: add dma properties to UART nodes ARM: dts: at91: sama5d2 Xplained: Correct the macb irq pinctrl node
2016-03-24Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "Misc fixes: - fix hotplug bugs - fix irq live lock - fix various topology handling bugs - fix APIC ACK ordering - fix PV iopl handling - fix speling - fix/tweak memcpy_mcsafe() return value - fix fbcon bug - remove stray prototypes" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/msr: Remove unused native_read_tscp() x86/apic: Remove declaration of unused hw_nmi_is_cpu_stuck x86/oprofile/nmi: Add missing hotplug FROZEN handling x86/hpet: Use proper mask to modify hotplug action x86/apic/uv: Fix the hotplug notifier x86/apb/timer: Use proper mask to modify hotplug action x86/topology: Use total_cpus not nr_cpu_ids for logical packages x86/topology: Fix Intel HT disable x86/topology: Fix logical package mapping x86/irq: Cure live lock in fixup_irqs() x86/tsc: Prevent NULL pointer deref in calibrate_delay_is_known() x86/apic: Fix suspicious RCU usage in smp_trace_call_function_interrupt() x86/iopl: Fix iopl capability check on Xen PV x86/iopl/64: Properly context-switch IOPL on Xen PV selftests/x86: Add an iopl test x86/mm, x86/mce: Fix return type/value for memcpy_mcsafe() x86/video: Don't assume all FB devices are PCI devices arch/x86/irq: Purge useless handler declarations from hw_irq.h x86: Fix misspellings in comments
2016-03-24h8300: switch EARLYCONYoshinori Sato
earlyprintk is architecture specific option. earlycon is generic and small footprint. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2016-03-24h8300: dts: Rename the serial port clock to fckGeert Uytterhoeven
The clock is really the device functional clock, not the interface clock. Rename it. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2016-03-24arm64: mm: allow preemption in copy_to_user_pageMark Rutland
Currently we disable preemption in copy_to_user_page; a behaviour that we inherited from the 32-bit arm code. This was necessary for older cores without broadcast data cache maintenance, and ensured that cache lines were dirtied and cleaned by the same CPU. On these systems dirty cache line migration was not possible, so this was sufficient to guarantee coherency. On contemporary systems, cache coherence protocols permit (dirty) cache lines to migrate between CPUs as a result of speculation, prefetching, and other behaviours. To account for this, in ARMv8 data cache maintenance operations are broadcast and affect all data caches in the domain associated with the VA (i.e. ISH for kernel and user mappings). In __switch_to we ensure that tasks can be safely migrated in the middle of a maintenance sequence, using a dsb(ish) to ensure prior explicit memory accesses are observed and cache maintenance operations are completed before a task can be run on another CPU. Given the above, it is not necessary to disable preemption in copy_to_user_page. This patch removes the preempt_{disable,enable} calls, permitting preemption. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-03-24arm64: consistently use p?d_set_hugeMark Rutland
Commit 324420bf91f60582 ("arm64: add support for ioremap() block mappings") added new p?d_set_huge functions which do the hard work to generate and set a correct block entry. These differ from open-coded huge page creation in the early page table code by explicitly setting the P?D_TYPE_SECT bits (which are implicitly retained by mk_sect_prot() for any valid prot), but are otherwise identical (and cannot fail on arm64). For simplicity and consistency, make use of these in the initial page table creation code. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-03-24arm64: kaslr: use callee saved register to preserve SCTLR across C callArd Biesheuvel
The KASLR code incorrectly expects the contents of x18 to be preserved across a call into C code, and uses it to stash the contents of SCTLR_EL1 before enabling the MMU. If the MMU needs to be disabled again to create the randomized kernel mapping, x18 is written back to SCTLR_EL1, which is likely to crash the system if x18 has been clobbered by kasan_early_init() or kaslr_early_init(). So use x22 instead, which is not in use so far in head.S Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-03-23parisc: Wire up preadv2 and pwritev2 syscallsHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2016-03-23parisc: Use generic extable search and sort routinesHelge Deller
Switch to the generic extable search and sort routines which were introduced with commit a272858 from Ard Biesheuvel. This saves quite some memory in the vmlinux binary with the 64bit kernel. Signed-off-by: Helge Deller <deller@gmx.de>
2016-03-23parisc: Panic immediately when panic_on_oopsAaro Koskinen
PA-RISC wants to sleep 5 seconds before panicking when panic_on_oops is set, with no apparent reason. Remove this feature, since some users may want their systems to fail as quickly as possible. Users who want to delay reboot after panic can use PANIC_TIMEOUT. Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Acked-by: Helge Deller <deller@gmx.de> Signed-off-by: Helge Deller <deller@gmx.de>
2016-03-23parisc: Drop alloc_hugepages and free_hugepages syscallsHelge Deller
The system calls alloc_hugepages() and free_hugepages() were introduced in Linux 2.5.36 and removed again in 2.5.54. They were never implemented on parisc, so let's drop them now. Signed-off-by: Helge Deller <deller@gmx.de>
2016-03-23Merge tag 'clk-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk updates from Stephen Boyd: "The clk changes for this release cycle are mostly dominated by new device support in terms of LoC, but there has been some cleanup in the core as well as the usual minor clk additions to various drivers. Core: - parent tracking has been simplified - CLK_IS_ROOT is now a no-op flag, cleaning up drivers has started - of_clk_init() doesn't consider disabled DT nodes anymore - clk_unregister() had an error path bug squashed - of_clk_get_parent_count() has been fixed to only return unsigned ints - HAVE_MACH_CLKDEV is removed now that the last arch user (ARM) is gone New Drivers: - NXP LPC18xx creg - QCOM IPQ4019 GCC - TI dm814x ADPLL - i.MX6QP Updates: - Cyngus audio clks found on Broadcom iProc devices - Non-critical fixes for BCM2385 PLLs - Samsung exynos5433 updates for clk id errors, HDMI support, suspend/resume simplifications - USB, CAN, LVDS, and FCP clks on shmobile devices - sunxi got support for more clks on new SoCs and went through a minor refactoring/rewrite to use a simpler factor clk construct - rockchip added some more clk ids and added suport for fraction dividers - QCOM GDSCs in msm8996 - A new devm helper to make adding custom actions simpler (acked by Greg)" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (197 commits) clk: bcm2835: fix check of error code returned by devm_ioremap_resource() clk: renesas: div6: use RENESAS for #define clk: renesas: Rename header file renesas.h clk: max77{686,802}: Remove CLK_IS_ROOT clk: versatile: Remove CLK_IS_ROOT clk: sunxi: Remove use of variable length array clk: fixed-rate: Remove CLK_IS_ROOT clk: qcom: Remove CLK_IS_ROOT doc: dt: add documentation for lpc1850-creg-clk driver clk: add lpc18xx creg clk driver clk: lpc32xx: fix compilation warning clk: xgene: Add missing parenthesis when clearing divider value clk: mb86s7x: Remove CLK_IS_ROOT clk: x86: Remove clkdev.h and clk.h includes clk: x86: Remove CLK_IS_ROOT clk: mvebu: Remove CLK_IS_ROOT clk: renesas: move drivers to renesas directory clk: si5{14,351,70}: Remove CLK_IS_ROOT clk: scpi: Remove CLK_IS_ROOT clk: s2mps11: Remove CLK_IS_ROOT ...
2016-03-23x86/msr: Remove unused native_read_tscp()Prarit Bhargava
After e76b027 ("x86,vdso: Use LSL unconditionally for vgetcpu") native_read_tscp() is unused in the kernel. The function can be removed like native_read_tsc() was. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Acked-by: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@suse.de> Link: http://lkml.kernel.org/r/1458687968-9106-1-git-send-email-prarit@redhat.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-03-23ARM64: Kconfig: Select mbigen interrupt controller on Hisilicon platformMaJun
As a interrupt controller used on some of hisilicon SOCs(660,1610 etc.), mbigen driver should be enabled when CONFIG_ARCH_HISI is enabled. Signed-off-by: Ma Jun <majun258@huawei.com> Cc: mark.rutland@arm.com Cc: jason@lakedaemon.net Cc: marc.zyngier@arm.com Cc: Catalin.Marinas@arm.com Cc: guohanjun@huawei.com Cc: Will.Deacon@arm.com Cc: huxinwei@huawei.com Cc: lizefan@huawei.com Cc: dingtianhong@huawei.com Cc: zhaojunhua@hisilicon.com Cc: liguozhu@hisilicon.com Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1458723993-21044-2-git-send-email-majun258@huawei.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-03-23Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge third patch-bomb from Andrew Morton: - more ocfs2 changes - a few hotfixes - Andy's compat cleanups - misc fixes to fatfs, ptrace, coredump, cpumask, creds, eventfd, panic, ipmi, kgdb, profile, kfifo, ubsan, etc. - many rapidio updates: fixes, new drivers. - kcov: kernel code coverage feature. Like gcov, but not "prohibitively expensive". - extable code consolidation for various archs * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (81 commits) ia64/extable: use generic search and sort routines x86/extable: use generic search and sort routines s390/extable: use generic search and sort routines alpha/extable: use generic search and sort routines kernel/...: convert pr_warning to pr_warn drivers: dma-coherent: use memset_io for DMA_MEMORY_IO mappings drivers: dma-coherent: use MEMREMAP_WC for DMA_MEMORY_MAP memremap: add MEMREMAP_WC flag memremap: don't modify flags kernel/signal.c: add compile-time check for __ARCH_SI_PREAMBLE_SIZE mm/mprotect.c: don't imply PROT_EXEC on non-exec fs ipc/sem: make semctl setting sempid consistent ubsan: fix tree-wide -Wmaybe-uninitialized false positives kfifo: fix sparse complaints scripts/gdb: account for changes in module data structure scripts/gdb: add cmdline reader command scripts/gdb: add version command kernel: add kcov code coverage profile: hide unused functions when !CONFIG_PROC_FS hpwdt: use nmi_panic() when kernel panics in NMI handler ...
2016-03-22Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull more KVM updates from Paolo Bonzini: "Second round of KVM changes for 4.6: - build fixes for PPC KVM - miscellaneous bugfixes for ARM KVM - cleanup of memory barrier and removal of redundant barriers - x86 fixes: page tracking oops, support for old buggy KVM nested on 4.5 - support for protection keys in guests - lockdep fix - another conversion to simple wait queues and raw spinlocks, backported from PREEMPT_RT" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (27 commits) KVM: page_track: fix access to NULL slot KVM: PPC: do not compile in vfio.o unconditionally kvm, rt: change async pagefault code locking for PREEMPT_RT KVM/PPC: update the comment of memory barrier in the kvmppc_prepare_to_enter() KVM/x86: update the comment of memory barrier in the vcpu_enter_guest() KVM: Replace smp_mb() with smp_load_acquire() in the kvm_flush_remote_tlbs() KVM/x86: Call smp_wmb() before increasing tlbs_dirty KVM: Replace smp_mb() with smp_mb_after_atomic() in the kvm_make_all_cpus_request() KVM/x86: Replace smp_mb() with smp_store_mb/release() in the walk_shadow_page_lockless_begin/end() KVM: Remove redundant smp_mb() in the kvm_mmu_commit_zap_page() KVM, pkeys: expose CPUID/CR4 to guest KVM, pkeys: add pkeys support for permission_fault KVM, pkeys: introduce pkru_mask to cache conditions KVM, pkeys: save/restore PKRU when guest/host switches x86: pkey: introduce write_pkru() for KVM KVM, pkeys: add pkeys support for xsave state KVM, pkeys: disable pkeys for guests in non-paging mode KVM: x86: remove magic number with enum cpuid_leafs KVM: MMU: return page fault error code from permission_fault KVM: fix spin_lock_init order on x86 ...
2016-03-22ia64/extable: use generic search and sort routinesArd Biesheuvel
Replace the arch specific versions of search_extable() and sort_extable() with calls to the generic ones, which now support relative exception tables as well. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>