Linux kernel documentation tree maintained by Jonathan Corbet http://mirrors.hust.edu.cn/git/lwn.git/atom?h=v4.6-rc2 2016-03-25T23:37:42+00:00 2016-03-25T23:37:42+00:00 Alexander Potapenko glider@google.com 2016-03-25T21:22:05+00:00 urn:sha1:be7635e7287e0e8013af3c89a6354a9e0182594c 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> 2016-03-25T06:13:48+00:00 Linus Torvalds torvalds@linux-foundation.org 2016-03-25T06:13:48+00:00 urn:sha1:11caf57f6a4b8e380001548b8af0a3ae3f7b4354 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 2016-03-25T02:57:15+00:00 Linus Torvalds torvalds@linux-foundation.org 2016-03-25T02:57:15+00:00 urn:sha1:8f40842e4260f73792c156aded004197a19135ee 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' ... 2016-03-25T02:01:38+00:00 Linus Torvalds torvalds@linux-foundation.org 2016-03-25T02:01:38+00:00 urn:sha1:8a20a04bda46625f8dc7e6bb8c2e4f5a480965fd 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 ... 2016-03-24T16:51:11+00:00 Arnd Bergmann arnd@arndb.de 2016-03-24T16:50:24+00:00 urn:sha1:6fe35ab77de9f38e9319c8def0597709759f99fd 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 2016-03-23T13:06:45+00:00 Linus Torvalds torvalds@linux-foundation.org 2016-03-23T13:06:45+00:00 urn:sha1:33c1f638a0feda92ffcb507c302482a5e6158a87 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 ... 2016-03-22T23:28:22+00:00 Linus Torvalds torvalds@linux-foundation.org 2016-03-22T23:28:22+00:00 urn:sha1:b91d9c6716319dcd9e6ffcfc9defaf79e705daab 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 ... 2016-03-22T19:55:17+00:00 Linus Torvalds torvalds@linux-foundation.org 2016-03-22T19:55:17+00:00 urn:sha1:55fc733c7e1de05a03237d857f4fe6dcec52d8d9 Pull xen updates from David Vrabel: "Features and fixes for 4.6: - Make earlyprintk=xen work for HVM guests - Remove module support for things never built as modules" * tag 'for-linus-4.6-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: drivers/xen: make platform-pci.c explicitly non-modular drivers/xen: make sys-hypervisor.c explicitly non-modular drivers/xen: make xenbus_dev_[front/back]end explicitly non-modular drivers/xen: make [xen-]ballon explicitly non-modular xen: audit usages of module.h ; remove unnecessary instances xen/x86: Drop mode-selecting ifdefs in startup_xen() xen/x86: Zero out .bss for PV guests hvc_xen: make early_printk work with HVM guests hvc_xen: fix xenboot for DomUs hvc_xen: add earlycon support 2016-03-22T10:54:32+00:00 Ludovic Desroches ludovic.desroches@atmel.com 2016-03-11T10:35:10+00:00 urn:sha1:b02acd4e62602a6ab307da84388a16bf60106c48 If enabling the hsmci regulator on card detection, the board can reboot on sd card insertion. Keeping the regulator always enabled fixes this issue. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Fixes: 8d545f32bd77 ("ARM: at91/dt: sama5d4 xplained: add regulators for v(q)mmc1 supplies") Cc: stable@vger.kernel.org #4.3 and later Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> 2016-03-22T10:54:26+00:00 Ludovic Desroches ludovic.desroches@atmel.com 2016-03-11T10:43:39+00:00 urn:sha1:ae3fc8ea08e405682f1fa959f94b6e4126afbc1b If enabling the hsmci regulator on card detection, the board can reboot on sd card insertion. Keeping the regulator always enabled fixes this issue. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Fixes: 1b53e3416dd0 ("ARM: at91/dt: sama5d3 xplained: add fixed regulator for vmmc0") Cc: stable@vger.kernel.org #4.3 and later Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>