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2019-01-06null_blk: add zoned config support informationJohn Pittman1-1/+2
If the kernel is built without CONFIG_BLK_DEV_ZONED, a modprobe of the null_blk driver with zoned=1 fails with 'Invalid argument'. This can be confusing to users, prompting a search as to why the parameter is invalid. To assist in that search, add a bit more information to the failure, additionally adding to the documentation that CONFIG_BLK_DEV_ZONED is needed for zoned=1. Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: John Pittman <jpittman@redhat.com> Added null_blk prefix to error message. Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-01-05block: add documentation for io_timeoutWeiping Zhang2-0/+16
Add documentation for /sys/block/<disk>/queue/io_timeout. Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Weiping Zhang <zhangweiping@didiglobal.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-01-03Merge branch 'for-linus' of ↵Linus Torvalds2-0/+30
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: "A tiny pull request this merge window unfortunately, should get more material in for the next release: - new driver for Raspberry Pi's touchscreen (firmware interface) - miscellaneous input driver fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: elan_i2c - add ACPI ID for touchpad in ASUS Aspire F5-573G Input: atmel_mxt_ts - don't try to free unallocated kernel memory Input: drv2667 - fix indentation issues Input: touchscreen - fix coding style issue Input: add official Raspberry Pi's touchscreen driver Input: nomadik-ske-keypad - fix a loop timeout test Input: rotary-encoder - don't log EPROBE_DEFER to kernel log Input: olpc_apsp - remove set but not used variable 'np' Input: olpc_apsp - enable the SP clock Input: olpc_apsp - check FIFO status on open(), not probe() Input: olpc_apsp - drop CONFIG_OLPC dependency clk: mmp2: add SP clock dt-bindings: marvell,mmp2: Add clock id for the SP clock Input: ad7879 - drop platform data support
2019-01-03Merge tag 'mailbox-v4.21' of ↵Linus Torvalds1-5/+25
git://git.linaro.org/landing-teams/working/fujitsu/integration Pull mailbox updates from Jassi Brar: - Introduce device-managed registration devm_mbox_controller_un/register and convert drivers to use it - Introduce flush api to support clients that must busy-wait in atomic context - Support multiple controllers per device - Hi3660: a bugfix and constify ops structure - TI-MsgMgr: off by one bugfix. - BCM: switch to spdx license - Tegra-HSP: support for shared mailboxes and suspend/resume. * tag 'mailbox-v4.21' of git://git.linaro.org/landing-teams/working/fujitsu/integration: (30 commits) mailbox: tegra-hsp: Use device-managed registration API mailbox: tegra-hsp: use devm_kstrdup_const() mailbox: tegra-hsp: Add suspend/resume support mailbox: tegra-hsp: Add support for shared mailboxes dt-bindings: tegra186-hsp: Add shared mailboxes mailbox: Allow multiple controllers per device mailbox: Support blocking transfers in atomic context mailbox: ti-msgmgr: Use device-managed registration API mailbox: stm32-ipcc: Use device-managed registration API mailbox: rockchip: Use device-managed registration API mailbox: qcom-apcs: Use device-managed registration API mailbox: platform-mhu: Use device-managed registration API mailbox: omap: Use device-managed registration API mailbox: mtk-cmdq: Remove needless devm_kfree() calls mailbox: mtk-cmdq: Use device-managed registration API mailbox: xgene-slimpro: Use device-managed registration API mailbox: sti: Use device-managed registration API mailbox: altera: Use device-managed registration API mailbox: imx: Use device-managed registration API mailbox: hi6220: Use device-managed registration API ...
2019-01-02Merge tag '4.21-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds1-6/+20
Pull cifs updates from Steve French: - four fixes for stable - improvements to DFS including allowing failover to alternate targets - some small performance improvements * tag '4.21-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6: (39 commits) cifs: update internal module version number cifs: we can not use small padding iovs together with encryption cifs: Minor Kconfig clarification cifs: Always resolve hostname before reconnecting cifs: Add support for failover in cifs_reconnect_tcon() cifs: Add support for failover in smb2_reconnect() cifs: Only free DFS target list if we actually got one cifs: start DFS cache refresher in cifs_mount() cifs: Use GFP_ATOMIC when a lock is held in cifs_mount() cifs: Add support for failover in cifs_reconnect() cifs: Add support for failover in cifs_mount() cifs: remove set but not used variable 'sep' cifs: Make use of DFS cache to get new DFS referrals cifs: minor updates to documentation cifs: check kzalloc return cifs: remove set but not used variable 'server' cifs: Use kzfree() to free password cifs: Fix to use kmem_cache_free() instead of kfree() cifs: update for current_kernel_time64() removal cifs: Add DFS cache routines ...
2019-01-02Merge branch 'next-smack' of ↵Linus Torvalds1-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull smack updates from James Morris: "Two Smack patches for 4.21. Jose's patch adds missing documentation and Zoran's fleshes out the access checks on keyrings" * 'next-smack' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: Smack: Improve Documentation smack: fix access permissions for keyring
2019-01-02Merge branch 'next-seccomp' of ↵Linus Torvalds2-0/+85
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull seccomp updates from James Morris: - Add SECCOMP_RET_USER_NOTIF - seccomp fixes for sparse warnings and s390 build (Tycho) * 'next-seccomp' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: seccomp, s390: fix build for syscall type change seccomp: fix poor type promotion samples: add an example of seccomp user trap seccomp: add a return code to trap to userspace seccomp: switch system call argument type to void * seccomp: hoist struct seccomp_data recalculation higher
2019-01-02Merge branch 'next-integrity' of ↵Linus Torvalds1-1/+30
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull integrity updates from James Morris: "In Linux 4.19, a new LSM hook named security_kernel_load_data was upstreamed, allowing LSMs and IMA to prevent the kexec_load syscall. Different signature verification methods exist for verifying the kexec'ed kernel image. This adds additional support in IMA to prevent loading unsigned kernel images via the kexec_load syscall, independently of the IMA policy rules, based on the runtime "secure boot" flag. An initial IMA kselftest is included. In addition, this pull request defines a new, separate keyring named ".platform" for storing the preboot/firmware keys needed for verifying the kexec'ed kernel image's signature and includes the associated IMA kexec usage of the ".platform" keyring. (David Howell's and Josh Boyer's patches for reading the preboot/firmware keys, which were previously posted for a different use case scenario, are included here)" * 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: integrity: Remove references to module keyring ima: Use inode_is_open_for_write ima: Support platform keyring for kernel appraisal efi: Allow the "db" UEFI variable to be suppressed efi: Import certificates from UEFI Secure Boot efi: Add an EFI signature blob parser efi: Add EFI signature data types integrity: Load certs to the platform keyring integrity: Define a trusted platform keyring selftests/ima: kexec_load syscall test ima: don't measure/appraise files on efivarfs x86/ima: retry detecting secure boot mode docs: Extend trusted keys documentation for TPM 2.0 x86/ima: define arch_get_ima_policy() for x86 ima: add support for arch specific policies ima: refactor ima_init_policy() ima: prevent kexec_load syscall based on runtime secureboot flag x86/ima: define arch_ima_get_secureboot integrity: support new struct public_key_signature encoding field
2019-01-02Merge tag 'iommu-updates-v4.21' of ↵Linus Torvalds3-6/+51
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull IOMMU updates from Joerg Roedel: - Page table code for AMD IOMMU now supports large pages where smaller page-sizes were mapped before. VFIO had to work around that in the past and I included a patch to remove it (acked by Alex Williamson) - Patches to unmodularize a couple of IOMMU drivers that would never work as modules anyway. - Work to unify the the iommu-related pointers in 'struct device' into one pointer. This work is not finished yet, but will probably be in the next cycle. - NUMA aware allocation in iommu-dma code - Support for r8a774a1 and r8a774c0 in the Renesas IOMMU driver - Scalable mode support for the Intel VT-d driver - PM runtime improvements for the ARM-SMMU driver - Support for the QCOM-SMMUv2 IOMMU hardware from Qualcom - Various smaller fixes and improvements * tag 'iommu-updates-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (78 commits) iommu: Check for iommu_ops == NULL in iommu_probe_device() ACPI/IORT: Don't call iommu_ops->add_device directly iommu/of: Don't call iommu_ops->add_device directly iommu: Consolitate ->add/remove_device() calls iommu/sysfs: Rename iommu_release_device() dmaengine: sh: rcar-dmac: Use device_iommu_mapped() xhci: Use device_iommu_mapped() powerpc/iommu: Use device_iommu_mapped() ACPI/IORT: Use device_iommu_mapped() iommu/of: Use device_iommu_mapped() driver core: Introduce device_iommu_mapped() function iommu/tegra: Use helper functions to access dev->iommu_fwspec iommu/qcom: Use helper functions to access dev->iommu_fwspec iommu/of: Use helper functions to access dev->iommu_fwspec iommu/mediatek: Use helper functions to access dev->iommu_fwspec iommu/ipmmu-vmsa: Use helper functions to access dev->iommu_fwspec iommu/dma: Use helper functions to access dev->iommu_fwspec iommu/arm-smmu: Use helper functions to access dev->iommu_fwspec ACPI/IORT: Use helper functions to access dev->iommu_fwspec iommu: Introduce wrappers around dev->iommu_fwspec ...
2019-01-02Merge tag 'dmaengine-4.21-rc1' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds5-7/+138
Pull dmaengine updates from Vinod Koul: "This includes a new driver, removes R-Mobile APE6 as it is no longer used, sprd cyclic dma support, last batch of dma_slave_config direction removal and random updates to bunch of drivers. Summary: - New driver for UniPhier MIO DMA controller - Remove R-Mobile APE6 support - Sprd driver updates and support for cyclic link-list - Remove dma_slave_config direction usage from rest of drivers - Minor updates to dmatest, dw-dmac, zynqmp and bcm dma drivers" * tag 'dmaengine-4.21-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (48 commits) dmaengine: qcom_hidma: convert to DEFINE_SHOW_ATTRIBUTE dmaengine: pxa: remove DBGFS_FUNC_DECL() dmaengine: mic_x100_dma: convert to DEFINE_SHOW_ATTRIBUTE dmaengine: amba-pl08x: convert to DEFINE_SHOW_ATTRIBUTE dmaengine: Documentation: Add documentation for multi chan testing dmaengine: dmatest: Add transfer_size parameter dmaengine: dmatest: Add alignment parameter dmaengine: dmatest: Use fixed point div to calculate iops dmaengine: dmatest: Add support for multi channel testing dmaengine: rcar-dmac: Document R8A774C0 bindings dt-bindings: dmaengine: usb-dmac: Add binding for r8a774c0 dmaengine: zynqmp_dma: replace spin_lock_bh with spin_lock_irqsave dmaengine: sprd: Add me as one of the module authors dmaengine: sprd: Support DMA 2-stage transfer mode dmaengine: sprd: Support DMA link-list cyclic callback dmaengine: sprd: Set cur_desc as NULL when free or terminate one dma channel dmaengine: sprd: Fix the last link-list configuration dmaengine: sprd: Get transfer residue depending on the transfer direction dmaengine: sprd: Remove direction usage from struct dma_slave_config dmaengine: dmatest: fix a small memory leak in dmatest_func() ...
2019-01-02Merge tag 'rtc-4.21' of ↵Linus Torvalds7-11/+59
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "Subsystem: - new %ptR printk format - rename core files - allow registration of multiple nvmem devices New driver: - i.MX system controller RTC Driver updates: - abx80x: handle voltage ioctls, correct binding doc - m41t80: correct month in alarm reads - pcf85363: add pcf85263 support - pcf8523: properly handle battery low flag - s3c: limit alarm to one year in the future as ALMYEAR is broken - sun6i: rework clock output binding" * tag 'rtc-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (54 commits) rtc: rename core files rtc: nvmem: fix possible use after free rtc: add i.MX system controller RTC support dt-bindings: fsl: scu: add rtc binding rtc: pcf2123: Add Microcrystal rv2123 rtc: class: reimplement devm_rtc_device_register rtc: enforce rtc_timer_init private_data type rtc: abx80x: Implement RTC_VL_READ,CLR ioctls rtc: pcf85363: Add support for NXP pcf85263 rtc dt-bindings: rtc: pcf85363: Document pcf85263 real-time clock rtc: pcf8523: don't return invalid date when battery is low dt-bindings: rtc: use a generic node name for ds1307 PM: Switch to use %ptR m68k/mac: Switch to use %ptR Input: hp_sdc_rtc - Switch to use %ptR rtc: tegra: Switch to use %ptR rtc: s5m: Switch to use %ptR rtc: s3c: Switch to use %ptR rtc: rx8025: Switch to use %ptR rtc: rx6110: Switch to use %ptR ...
2019-01-02Merge tag 'pinctrl-v4.21-1' of ↵Linus Torvalds11-49/+529
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control updates from Linus Walleij: "We have no core changes but lots of incremental development in drivers all over the place: Renesas, NXP, Mediatek and Actions Semiconductor keep churning out new SoCs. I have some subtree maintainers for Renesas and Intel helping out to keep down the load, it's been working smoothly (Samsung also have a subtree but it was not used this cycle.) New drivers: - NXP (ex Freescale) i.MX 8 QXP SoC driver. - Mediatek MT6797 SoC driver. - Mediatek MT7629 SoC driver. - Actions Semiconductor S700 SoC driver. - Renesas RZ/A2 SoC driver. - Allwinner sunxi suniv F1C100 SoC driver. - Qualcomm PMS405 PMIC driver. - Microsemi Ocelot Jaguar2 SoC driver. Improvements: - Some RT improvements (using raw spinlocks where appropriate). - A lot of new pin sets on the Renesas PFC pin controllers. - GPIO hogs now work on the Qualcomm SPMI/SSBI pin controller GPIO chips, and Xway. - Major modernization of the Intel pin control drivers. - STM32 pin control driver will now synchronize usage of pins with another CPU using a hardware spinlock" * tag 'pinctrl-v4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (145 commits) dt-bindings: arm: fsl-scu: add imx8qm pinctrl support pinctrl: freescale: Break dependency on SOC_IMX8MQ for i.MX8MQ pinctrl: imx-scu: Depend on IMX_SCU pinctrl: ocelot: Add dependency on HAS_IOMEM pinctrl: ocelot: add MSCC Jaguar2 support pinctrl: bcm: ns: support updated DT binding as syscon subnode dt-bindings: pinctrl: bcm4708-pinmux: rework binding to use syscon MAINTAINERS: merge at91 pinctrl entries pinctrl: imx8qxp: break the dependency on SOC_IMX8QXP pinctrl: uniphier: constify uniphier_pinctrl_socdata pinctrl: mediatek: improve Kconfig dependencies pinctrl: msm: mark PM functions as __maybe_unused dt-bindings: pinctrl: sunxi: Add supply properties pinctrl: meson: meson8b: add the missing GPIO_GROUPs for BOOT and CARD pinctrl: meson: meson8: add the missing GPIO_GROUPs for BOOT and CARD pinctrl: meson: meson8: rename the "gpio" function to "gpio_periphs" pinctrl: meson: meson8: rename the "gpio" function to "gpio_periphs" pinctrl: meson: meson8b: fix the GPIO function for the GPIOAO pins pinctrl: meson: meson8: fix the GPIO function for the GPIOAO pins pinctrl: sh-pfc: Make pinmux_cfg_reg.var_field_width[] variable-length ...
2019-01-02Merge tag 'linux-watchdog-4.21-rc1' of ↵Linus Torvalds5-4/+49
git://www.linux-watchdog.org/linux-watchdog Pull watchdog updates from Wim Van Sebroeck: - add TQ-Systems TQMX86 watchdog driver - add Qualcomm PM8916 watchdog driver - w83627hf_wdt: add quirk for Inves system - renesas_wdt: several improvements and document r8a774c0 support - mena21_wdt, mtx-1: Convert to use GPIO descriptor - bcm281xx, ie6xx_wdt: convert to DEFINE_SHOW_ATTRIBUTE - documentation: add PM usage and kernel-api: don't reference removed functions - update bindings for MT7629 SoC - several small fixes * tag 'linux-watchdog-4.21-rc1' of git://www.linux-watchdog.org/linux-watchdog: (22 commits) watchdog: tqmx86: Add watchdog driver for the IO controller dt-bindings: watchdog: renesas-wdt: Document r8a774c0 support watchdog: docs: kernel-api: don't reference removed functions watchdog: add documentation for PM usage watchdog: mtx-1: Convert to use GPIO descriptor watchdog: mena21_wdt: Convert to GPIO descriptors dt-bindings: watchdog: Add Qualcomm PM8916 watchdog watchdog: Add pm8916 watchdog driver dt-bindings: watchdog: update bindings for MT7629 SoC watchdog: renesas_wdt: don't keep timer value during suspend/resume watchdog: ie6xx_wdt: convert to DEFINE_SHOW_ATTRIBUTE watchdog: bcm281xx: convert to DEFINE_SHOW_ATTRIBUTE watchdog: asm9260_wdt: make array mode_name static, shrinks object size watchdog/hpwdt: Update driver version. watchdog/hpwdt: Do not claim unsupported hardware watchdog/hpwdt: Exclude via blacklist Watchdog: remove outdated comment watchdog: w83627hf_wdt: Add quirk for Inves system watchdog: cpwd: add of_node_put() watchdog: renesas_wdt: don't set divider while watchdog is running ...
2019-01-01Merge tag 'armsoc-dt' of ↵Linus Torvalds28-269/+613
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM Device-tree updates from Olof Johansson: "As usual, this is where the bulk of our changes end up landing each merge window. The individual updates are too many to enumerate, many many platforms have seen additions of device descriptions such that they are functionally more complete (in fact, this is often the bulk of updates we see). Instead I've mostly focused on highlighting the new platforms below as they are introduced. Sometimes the introduction is of mostly a fragment, that later gets filled in on later releases, and in some cases it's near-complete platform support. The latter is more common for derivative platforms that already has similar support in-tree. Two SoCs are slight outliers from the usual range of additions. Allwinner support for F1C100s, a quite old SoC (ARMv5-based) shipping in the Lychee Pi Nano platform. At the other end is NXP Layerscape LX2160A, a 16-core 2.2GHz Cortex-A72 SoC with a large amount of I/O aimed at infrastructure/networking. TI updates stick out in the diff stats too, in particular because they have moved the description of their L4 on-chip interconnect to devicetree, which opens up for removal of even more of their platform-specific 'hwmod' description tables over the next few releases. SoCs: - Qualcomm QCS404 (4x Cortex-A53) - Allwinner T3 (rebranded R40) and f1c100s (armv5) - NXP i.MX7ULP (1x Cortex-A7 + 1x Cortex-M4) - NXP LS1028A (2x Cortex-A72), LX2160A (16x Cortex-A72) New platforms: - Rockchip: Gru Scarlet (RK3188 Tablet) - Amlogic: Phicomm N1 (S905D), Libretech S805-AC - Broadcom: Linksys EA6500 v2 Wi-Fi router (BCM4708) - Qualcomm: QCS404 base platform and EVB - Qualcomm: Remove of Arrow SD600 - PXA: First PXA3xx DT board: Raumfeld - Aspeed: Facebook Backpack-CMM BMC - Renesas iWave G20D-Q7 (RZ/G1N) - Allwinner t3-cqa3t-bv3 (T3/R40) and Lichee Pi Nano (F1C100s) - Allwinner Emlid Neutis N5, Mapleboard MP130 - Marvell Macchiatobin Single Shot (Armada 8040, no 10GbE) - i.MX: mtrion emCON-MX6, imx6ul-pico-pi, imx7d-sdb-reva - VF610: Liebherr's BK4 device, ZII SCU4 AIB board - i.MX7D PICO Hobbit baseboard - i.MX7ULP EVK board - NXP LX2160AQDS and LX2160ARDB boards Other: - Coresight binding updates across the board - CPU cooling maps updates across the board" * tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (648 commits) ARM: dts: suniv: Fix improper bindings include patch ARM: dts: sunxi: Enable Broadcom-based Bluetooth for multiple boards arm64: dts: allwinner: a64: bananapi-m64: Add Bluetooth device node ARM: dts: suniv: Fix improper bindings include patch arm64: dts: Add spi-[tx/rx]-bus-width for the FSL QSPI controller arm64: dts: Remove unused properties from FSL QSPI driver nodes ARM: dts: Add spi-[tx/rx]-bus-width for the FSL QSPI controller ARM: dts: imx6sx-sdb: Fix the reg properties for the FSL QSPI nodes ARM: dts: Remove unused properties from FSL QSPI driver nodes arm64: dts: ti: k3-am654: Enable main domain McSPI0 arm64: dts: ti: k3-am654: Add McSPI DT nodes arm64: dts: ti: k3-am654: Populate power-domain property for UART nodes arm64: dts: ti: k3-am654-base-board: Enable ECAP PWM arm64: dts: ti: k3-am65-main: Add ECAP PWM node arm64: dts: ti: k3-am654-base-board: Add I2C nodes arm64: dts: ti: am654-base-board: Add pinmux for main uart0 arm64: dts: ti: k3-am65: Add pinctrl regions dt-bindings: pinctrl: k3: Introduce pinmux definitions ARM: dts: exynos: Specify I2S assigned clocks in proper node ARM: dts: exynos: Add missing CPUs in cooling maps for Odroid X2 ...
2019-01-01Merge tag 'armsoc-drivers' of ↵Linus Torvalds6-2/+38
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Olof Johansson: "Misc driver updates for platforms, many of them power related. - Rockchip adds power domain support for rk3066 and rk3188 - Amlogic adds a power measurement driver - Allwinner adds SRAM support for three platforms (F1C100, H5, A64 C1) - Wakeup and ti-sysc (platform bus) fixes for OMAP/DRA7 - Broadcom fixes suspend/resume with Thumb2 kernels, and improves stability of a handful of firmware/platform interfaces - PXA completes their conversion to dmaengine framework - Renesas does a bunch of PM cleanups across many platforms - Tegra adds support for suspend/resume on T186/T194, which includes some driver cleanups and addition of wake events - Tegra also adds a driver for memory controller (EMC) on Tegra2 - i.MX tweaks power domain bindings, and adds support for i.MX8MQ in GPC - Atmel adds identifiers and LPDDR2 support for a new SoC, SAM9X60 and misc cleanups across several platforms" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (73 commits) ARM: at91: add support in soc driver for new SAM9X60 ARM: at91: add support in soc driver for LPDDR2 SiP memory: omap-gpmc: Use of_node_name_eq for node name comparisons bus: ti-sysc: Check for no-reset and no-idle flags at the child level ARM: OMAP2+: Check also the first dts child for hwmod flags soc: amlogic: meson-clk-measure: Add missing REGMAP_MMIO dependency soc: imx: gpc: Increase GPC_CLK_MAX to 7 soc: renesas: rcar-sysc: Fix power domain control after system resume soc: renesas: rcar-sysc: Merge PM Domain registration and linking soc: renesas: rcar-sysc: Remove rcar_sysc_power_{down,up}() helpers soc: renesas: r8a77990-sysc: Fix initialization order of 3DG-{A,B} dt-bindings: sram: sunxi: Add compatible for the A64 SRAM C1 dt-bindings: sram: sunxi: Add bindings for the H5 with SRAM C1 dt-bindings: sram: Add Allwinner suniv F1C100s soc: sunxi: sram: Add support for the H5 SoC system control soc: sunxi: sram: Enable EMAC clock access for H3 variant soc: imx: gpcv2: add support for i.MX8MQ SoC soc: imx: gpcv2: move register access table to domain data soc: imx: gpcv2: prefix i.MX7 specific defines dmaengine: pxa: make the filter function internal ...
2019-01-01Merge tag 'armsoc-soc' of ↵Linus Torvalds2-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull arm SoC platform updates from Olof Johansson: "SoC updates, mostly refactorings and cleanups of old legacy platforms, but also a few more things: New SoC support this release: - NXP/Freescale i.MX7ULP (1x Cortex-A7, Cortex-M4, graphics, etc) - Allwinner F1C100, older platform with an ARM926-EJS (ARMv5) core Cleanups of various platforms: - OMAP1 ams-delta does some GPIO cleanups - Davinci removes of at24 platform data - Samsung cleans up old wakeup, PM debug and secondary core boot code - Renesas moves around config options and PM code to drivers/soc for sharing with 64-bit and more consistency - i.MX, Broadcom and SoCFPGA all have tweaks to lowlevel debug console setups - SoCFPGA adds explicit selection of ARM errata and removes some unused code This also contains a few patches that I had queued up as fixes for 4.20 but didn't send in before the release" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (68 commits) arm64: dts: renesas: draak: Fix CVBS input ARM: omap2: avoid section mismatch warning ARM: tegra: avoid section mismatch warning ARM: ks8695: fix section mismatch warning ARM: pxa: avoid section mismatch warning ARM: mmp: fix pxa168_device_usb_phy use on aspenite ARM: mmp: fix timer_init calls ARM: OMAP1: fix USB configuration for device-only setups ARM: OMAP1: add MMC configuration for Palm Tungsten E ARM: imx: fix dependencies on imx7ulp ARM: meson: select HAVE_ARM_TWD and ARM_GLOBAL_TIMER MAINTAINERS: add drivers/soc/amlogic/ to amlogic list ARM: imx: add initial support for imx7ulp ARM: debug-imx: only define DEBUG_IMX_UART_PORT if needed ARM: dts: Fix OMAP4430 SDP Ethernet startup ARM: dts: am335x-pdu001: Fix polarity of card detection input ARM: OMAP1: ams-delta: Fix audio permanently muted ARM: dts: omap5: Fix dual-role mode on Super-Speed port arm64: dts: rockchip: fix rk3399-rockpro64 regulator gpios ARM: davinci: da850-evm: remove unnecessary include ...
2018-12-31Merge branch 'fixes' into next/socOlof Johansson18-167/+200
Merge in fixes here, since the last batch didn't make it in before the release of 4.20, and we might as well group them with this set of patches. * fixes: (822 commits) arm64: dts: renesas: draak: Fix CVBS input ARM: dts: Fix OMAP4430 SDP Ethernet startup ARM: dts: am335x-pdu001: Fix polarity of card detection input ARM: OMAP1: ams-delta: Fix audio permanently muted ARM: dts: omap5: Fix dual-role mode on Super-Speed port arm64: dts: rockchip: fix rk3399-rockpro64 regulator gpios ARM: dts: imx7d-nitrogen7: Fix the description of the Wifi clock ARM: imx: update the cpu power up timing setting on i.mx6sx Revert "arm64: dts: marvell: add CPU Idle power state support on Armada 7K/8K" ARM: dts: imx7d-pico: Describe the Wifi clock ARM: dts: realview: Fix some more duplicate regulator nodes MAINTAINERS: update entry for MMP platform ARM: mmp/mmp2: fix cpu_is_mmp2() on mmp2-dt MAINTAINERS: mediatek: Update SoC entry ARM: dts: bcm2837: Fix polarity of wifi reset GPIOs + Linux 4.20-rc5 Signed-off-by: Olof Johansson <olof@lixom.net>
2018-12-31Merge tag 'trace-v4.21' of ↵Linus Torvalds2-0/+7
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: - Rework of the kprobe/uprobe and synthetic events to consolidate all the dynamic event code. This will make changes in the future easier. - Partial rewrite of the function graph tracing infrastructure. This will allow for multiple users of hooking onto functions to get the callback (return) of the function. This is the ground work for having kprobes and function graph tracer using one code base. - Clean up of the histogram code that will facilitate adding more features to the histograms in the future. - Addition of str_has_prefix() and a few use cases. There currently is a similar function strstart() that is used in a few places, but only returns a bool and not a length. These instances will be removed in the future to use str_has_prefix() instead. - A few other various clean ups as well. * tag 'trace-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (57 commits) tracing: Use the return of str_has_prefix() to remove open coded numbers tracing: Have the historgram use the result of str_has_prefix() for len of prefix tracing: Use str_has_prefix() instead of using fixed sizes tracing: Use str_has_prefix() helper for histogram code string.h: Add str_has_prefix() helper function tracing: Make function ‘ftrace_exports’ static tracing: Simplify printf'ing in seq_print_sym tracing: Avoid -Wformat-nonliteral warning tracing: Merge seq_print_sym_short() and seq_print_sym_offset() tracing: Add hist trigger comments for variable-related fields tracing: Remove hist trigger synth_var_refs tracing: Use hist trigger's var_ref array to destroy var_refs tracing: Remove open-coding of hist trigger var_ref management tracing: Use var_refs[] for hist trigger reference checking tracing: Change strlen to sizeof for hist trigger static strings tracing: Remove unnecessary hist trigger struct field tracing: Fix ftrace_graph_get_ret_stack() to use task and not current seq_buf: Use size_t for len in seq_buf_puts() seq_buf: Make seq_buf_puts() null-terminate the buffer arm64: Use ftrace_graph_get_ret_stack() instead of curr_ret_stack ...
2018-12-31Merge tag 'f2fs-for-4.21' of ↵Linus Torvalds1-0/+9
git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs Pull f2fs updates from Jaegeuk Kim: "In this round, we've focused on bug fixes since Pixel devices have been shipping with f2fs. Some of them were related to hardware encryption support which are actually not an issue in mainline, but would be better to merge them in order to avoid potential bugs. Enhancements: - do GC sub-sections when the section is large - add a flag in ioctl(SHUTDOWN) to trigger fsck for QA - use kvmalloc() in order to give another chance to avoid ENOMEM Bug fixes: - fix accessing memory boundaries in a malformed iamge - GC gives stale unencrypted block - GC counts in large sections - detect idle time more precisely - block allocation of DIO writes - race conditions between write_begin and write_checkpoint - allow GCs for node segments via ioctl() There are various clean-ups and minor bug fixes as well" * tag 'f2fs-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (43 commits) f2fs: sanity check of xattr entry size f2fs: fix use-after-free issue when accessing sbi->stat_info f2fs: check PageWriteback flag for ordered case f2fs: fix validation of the block count in sanity_check_raw_super f2fs: fix missing unlock(sbi->gc_mutex) f2fs: fix to dirty inode synchronously f2fs: clean up structure extent_node f2fs: fix block address for __check_sit_bitmap f2fs: fix sbi->extent_list corruption issue f2fs: clean up checkpoint flow f2fs: flush stale issued discard candidates f2fs: correct wrong spelling, issing_* f2fs: use kvmalloc, if kmalloc is failed f2fs: remove redundant comment of unused wio_mutex f2fs: fix to reorder set_page_dirty and wait_on_page_writeback f2fs: clear PG_writeback if IPU failed f2fs: add an ioctl() to explicitly trigger fsck later f2fs: avoid frequent costly fsck triggers f2fs: fix m_may_create to make OPU DIO write correctly f2fs: fix to update new block address correctly for OPU ...
2018-12-31Merge branch 'topic/uniphier' into for-linusVinod Koul1-0/+25
2018-12-31Merge branch 'topic/sh' into for-linusVinod Koul2-1/+6
2018-12-31Merge branch 'topic/dw' into for-linusVinod Koul1-0/+4
2018-12-29Merge tag 'kbuild-v4.21' of ↵Linus Torvalds1-6/+1
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild updates from Masahiro Yamada: "Kbuild core: - remove unneeded $(call cc-option,...) switches - consolidate Clang compiler flags into CLANG_FLAGS - announce the deprecation of SUBDIRS - fix single target build for external module - simplify the dependencies of 'prepare' stage targets - allow fixdep to directly write to .*.cmd files - simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS - change if_changed_rule to accept multi-line recipe - move .SECONDARY special target to scripts/Kbuild.include - remove redundant 'set -e' - improve parallel execution for CONFIG_HEADERS_CHECK - misc cleanups Treewide fixes and cleanups - set Clang flags correctly for PowerPC boot images - fix UML build error with CONFIG_GCC_PLUGINS - remove unneeded patterns from .gitignore files - refactor firmware/Makefile - remove unneeded rules for *offsets.s - avoid unneeded regeneration of intermediate .s files - clean up ./Kbuild Modpost: - remove unused -M, -K options - fix false positive warnings about section mismatch - use simple devtable lookup instead of linker magic - misc cleanups Coccinelle: - relax boolinit.cocci checks for overall consistency - fix warning messages of boolinit.cocci Other tools: - improve -dirty check of scripts/setlocalversion - add a tool to generate compile_commands.json from .*.cmd files" * tag 'kbuild-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (51 commits) kbuild: remove unused cmd_gentimeconst kbuild: remove $(obj)/ prefixes in ./Kbuild treewide: add intermediate .s files to targets treewide: remove explicit rules for *offsets.s firmware: refactor firmware/Makefile firmware: remove unnecessary patterns from .gitignore scripts: remove unnecessary ihex2fw and check-lc_ctypes from .gitignore um: remove unused filechk_gen_header in Makefile scripts: add a tool to produce a compile_commands.json file kbuild: add -Werror=implicit-int flag unconditionally kbuild: add -Werror=strict-prototypes flag unconditionally kbuild: add -fno-PIE flag unconditionally scripts: coccinelle: Correct warning message scripts: coccinelle: only suggest true/false in files that already use them kbuild: handle part-of-module correctly for *.ll and *.symtypes kbuild: refactor part-of-module kbuild: refactor quiet_modtag kbuild: remove redundant quiet_modtag for $(obj-m) kbuild: refactor Makefile.asm-generic user/Makefile: Fix typo and capitalization in comment section ...
2018-12-29Merge tag 'docs-5.0' of git://git.lwn.net/linuxLinus Torvalds116-616/+6623
Pull documentation update from Jonathan Corbet: "A fairly normal cycle for documentation stuff. We have a new document on perf security, more Italian translations, more improvements to the memory-management docs, improvements to the pathname lookup documentation, and the usual array of smaller fixes. As is often the case, there are a few reaches outside of Documentation/ to adjust kerneldoc comments" * tag 'docs-5.0' of git://git.lwn.net/linux: (38 commits) docs: improve pathname-lookup document structure configfs: fix wrong name of struct in documentation docs/mm-api: link slab_common.c to "The Slab Cache" section slab: make kmem_cache_create{_usercopy} description proper kernel-doc doc:process: add links where missing docs/core-api: make mm-api.rst more structured x86, boot: documentation whitespace fixup Documentation: devres: note checking needs when converting doc:it: add some process/* translations doc:it: fixes in process/1.Intro Documentation: convert path-lookup from markdown to resturctured text Documentation/admin-guide: update admin-guide index.rst Documentation/admin-guide: introduce perf-security.rst file scripts/kernel-doc: Fix struct and struct field attribute processing Documentation: dev-tools: Fix typos in index.rst Correct gen_init_cpio tool's documentation Document /proc/pid PID reuse behavior Documentation: update path-lookup.md for parallel lookups Documentation: Use "while" instead of "whilst" dmaengine: Add mailing list address to the documentation ...
2018-12-29Merge branch 'for-4.21' of ↵Linus Torvalds2-7/+183
git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup updates from Tejun Heo: - Waiman's cgroup2 cpuset support has been finally merged closing one of the last remaining feature gaps. - cgroup.procs could show non-leader threads when cgroup2 threaded mode was used in certain ways. I forgot to push the fix during the last cycle. - A patch to fix mount option parsing when all mount options have been consumed by someone else (LSM). - cgroup_no_v1 boot param can now block named cgroup1 hierarchies too. * 'for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup: Add named hierarchy disabling to cgroup_no_v1 boot param cgroup: fix parsing empty mount option string cpuset: Remove set but not used variable 'cs' cgroup: fix CSS_TASK_ITER_PROCS cgroup: Add .__DEBUG__. prefix to debug file names cpuset: Minor cgroup2 interface updates cpuset: Expose cpuset.cpus.subpartitions with cgroup_debug cpuset: Add documentation about the new "cpuset.sched.partition" flag cpuset: Use descriptive text when reading/writing cpuset.sched.partition cpuset: Expose cpus.effective and mems.effective on cgroup v2 root cpuset: Make generate_sched_domains() work with partition cpuset: Make CPU hotplug work with partition cpuset: Track cpusets that use parent's effective_cpus cpuset: Add an error state to cpuset.sched.partition cpuset: Add new v2 cpuset.sched.partition flag cpuset: Simply allocation and freeing of cpumasks cpuset: Define data structures to support scheduling partition cpuset: Enable cpuset controller in default hierarchy cgroup: remove unnecessary unlikely()
2018-12-29Merge tag 'xtensa-20181228' of git://github.com/jcmvbkbc/linux-xtensaLinus Torvalds1-1/+1
Pull Xtensa updates from Max Filippov: - switch to generated syscall table - switch ptrace to regsets, use regsets for core dumps - complete tracehook implementation - add syscall tracepoints support - add jumplabels support - add memtest support - drop unused/duplicated code from entry.S, ptrace.c, coprocessor.S, elf.h and syscall.h - clean up warnings caused by WSR/RSR macros - clean up DTC warnings about SPI controller node names in xtfpga.dtsi - simplify coprocessor.S - get rid of explicit 'l32r' instruction usage in assembly * tag 'xtensa-20181228' of git://github.com/jcmvbkbc/linux-xtensa: (25 commits) xtensa: implement jump_label support xtensa: implement syscall tracepoints xtensa: implement tracehook functions and enable HAVE_ARCH_TRACEHOOK xtensa: enable CORE_DUMP_USE_REGSET xtensa: implement TIE regset xtensa: implement task_user_regset_view xtensa: call do_syscall_trace_{enter,leave} selectively xtensa: use NO_SYSCALL instead of -1 xtensa: define syscall_get_arch() Move EM_XTENSA to uapi/linux/elf-em.h xtensa: support memtest xtensa: don't use l32r opcode directly xtensa: xtfpga.dtsi: fix dtc warnings about SPI xtensa: don't clear cpenable unconditionally on release xtensa: simplify coprocessor.S xtensa: clean up WSR*/RSR*/get_sr/set_sr xtensa: drop unused declarations from elf.h xtensa: clean up syscall.h xtensa: drop unused coprocessor helper functions xtensa: drop custom PTRACE_{PEEK,POKE}{TEXT,DATA} ...
2018-12-29Merge tag 'nds32-for-linus-4.21' of ↵Linus Torvalds1-0/+17
git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux Pull nds32 updates from Greentime Hu: - Perf support - Power management support - FPU support - Hardware prefetcher support - Build error fixed - Performance enhancement * tag 'nds32-for-linus-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux: nds32: support hardware prefetcher nds32: Fix the items of hwcap_str ordering issue. math-emu/soft-fp.h: (_FP_ROUND_ZERO) cast 0 to void to fix warning math-emu/op-2.h: Use statement expressions to prevent negative constant shift nds32: support denormalized result through FP emulator nds32: Support FP emulation nds32: nds32 FPU port nds32: Remove duplicated include from pm.c nds32: Power management for nds32 nds32: Add document for NDS32 PMU. nds32: Add perf call-graph support. nds32: Perf porting nds32: Fix bug in bitfield.h nds32: Fix gcc 8.0 compiler option incompatible. nds32: Fill all TLB entries with kernel image mapping nds32: Remove the redundant assignment
2018-12-29Merge tag 'char-misc-4.21-rc1' of ↵Linus Torvalds8-0/+166
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big set of char and misc driver patches for 4.21-rc1. Lots of different types of driver things in here, as this tree seems to be the "collection of various driver subsystems not big enough to have their own git tree" lately. Anyway, some highlights of the changes in here: - binderfs: is it a rule that all driver subsystems will eventually grow to have their own filesystem? Binder now has one to handle the use of it in containerized systems. This was discussed at the Plumbers conference a few months ago and knocked into mergable shape very fast by Christian Brauner. Who also has signed up to be another binder maintainer, showing a distinct lack of good judgement :) - binder updates and fixes - mei driver updates - fpga driver updates and additions - thunderbolt driver updates - soundwire driver updates - extcon driver updates - nvmem driver updates - hyper-v driver updates - coresight driver updates - pvpanic driver additions and reworking for more device support - lp driver updates. Yes really, it's _finally_ moved to the proper parallal port driver model, something I never thought I would see happen. Good stuff. - other tiny driver updates and fixes. All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (116 commits) MAINTAINERS: add another Android binder maintainer intel_th: msu: Fix an off-by-one in attribute store stm class: Add a reference to the SyS-T document stm class: Fix a module refcount leak in policy creation error path char: lp: use new parport device model char: lp: properly count the lp devices char: lp: use first unused lp number while registering char: lp: detach the device when parallel port is removed char: lp: introduce list to save port number bus: qcom: remove duplicated include from qcom-ebi2.c VMCI: Use memdup_user() rather than duplicating its implementation char/rtc: Use of_node_name_eq for node name comparisons misc: mic: fix a DMA pool free failure ptp: fix an IS_ERR() vs NULL check genwqe: Fix size check binder: implement binderfs binder: fix use-after-free due to ksys_close() during fdget() bus: fsl-mc: remove duplicated include files bus: fsl-mc: explicitly define the fsl_mc_command endianness misc: ti-st: make array read_ver_cmd static, shrinks object size ...
2018-12-29Merge tag 'driver-core-4.21-rc1' of ↵Linus Torvalds1-3/+7
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the "big" set of driver core patches for 4.21-rc1. It's not really big, just a number of small changes for some reported issues, some documentation updates to hopefully make it harder for people to abuse the driver model, and some other minor cleanups. All of these have been in linux-next for a while with no reported issues" * tag 'driver-core-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: mm, memory_hotplug: update a comment in unregister_memory() component: convert to DEFINE_SHOW_ATTRIBUTE sysfs: Disable lockdep for driver bind/unbind files driver core: Add missing dev->bus->need_parent_lock checks kobject: return error code if writing /sys/.../uevent fails driver core: Move async_synchronize_full call driver core: platform: Respect return code of platform_device_register_full() kref/kobject: Improve documentation drivers/base/memory.c: Use DEVICE_ATTR_RO and friends driver core: Replace simple_strto{l,ul} by kstrtou{l,ul} kernfs: Improve kernfs_notify() poll notification latency kobject: Fix warnings in lib/kobject_uevent.c kobject: drop unnecessary cast "%llu" for u64 driver core: fix comments for device_block_probing() driver core: Replace simple_strtol by kstrtoint
2018-12-29Merge tag 'staging-4.21-rc1' of ↵Linus Torvalds15-4/+258
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging/IIO driver updates from Greg KH: "Here is the big staging and iio driver pull request for 4.21-rc1. Lots and lots of tiny patches here, nothing major at all. Which is good, tiny cleanups is nice to see. No new huge driver removal or addition, this release cycle, although there are lots of good IIO driver changes, addtions, and movement from staging into the "real" part of the kernel, which is always great. Full details are in the shortlog, and all of these have been in linux-next for a while with no reported issues" * tag 'staging-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (553 commits) staging: mt7621-mmc: Correct spelling mistakes in comments staging: wilc1000: fix missing read_write setting when reading data mt7621-mmc: char * array declaration might be better as static const mt7621-mmc: return statement in void function unnecessary mt7621-mmc: Alignment should match open parenthesis mt7621-mmc: Removed unnecessary blank lines mt7621-mmc: Fix some coding style issues staging: android: ashmem: doc: Fix spelling staging: rtl8188eu: cleanup brace coding style issues staging: rtl8188eu: add spaces around '&' in rtw_mlme_ext.c staging: rtl8188eu: change return type of is_basicrate() to bool staging: rtl8188eu: simplify null array initializations staging: rtl8188eu: change order of declarations to improve readability staging: rtl8188eu: make some arrays static in rtw_mlme_ext.c staging: rtl8188eu: constify some arrays staging: rtl8188eu: convert unsigned char arrays to u8 staging: rtl8188eu: remove redundant declaration in rtw_mlme_ext.c staging: rtl8188eu: remove unused arrays WFD_OUI and WMM_INFO_OUI staging: rtl8188eu: remove unnecessary parentheses in rtw_mlme_ext.c staging: rtl8188eu: remove unnecessary comments in rtw_mlme_ext.c ...
2018-12-29Merge tag 'tty-4.21-rc1' of ↵Linus Torvalds5-6/+61
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver updates from Greg KH: "Here is the large TTY/Serial driver set of patches for 4.21-rc1. A number of small serial driver changes along with some good tty core fixes for long-reported issues with locking. There is also a new console font added to the tree, for high-res screens, so that should be helpful for many. The last patch in the series is a revert of an older one in the tree, it came late but it resolves a reported issue that linux-next was having for some people. Full details are in the shortlog, and all of these, with the exception of the revert, have been in linux-next for a while with no reported issues" * tag 'tty-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (85 commits) Revert "serial: 8250: Default SERIAL_OF_PLATFORM to SERIAL_8250" serial: sccnxp: Allow to use non-standard baud rates serial: sccnxp: Adds a delay between sequential read/write cycles tty: serial: qcom_geni_serial: Fix UART hang tty: serial: qcom_geni_serial: Fix wrap around of TX buffer serial: max310x: Fix tx_empty() callback dt-bindings: serial: sh-sci: Document r8a774c0 bindings dt-bindings: serial: sh-sci: Document r8a774a1 bindings Fonts: New Terminus large console font dt-bindings: serial: lpuart: add imx8qxp compatible string serial: uartps: Fix interrupt mask issue to handle the RX interrupts properly serial: uartps: Fix error path when alloc failed serial: uartps: Check if the device is a console serial: uartps: Add the device_init_wakeup tty: serial: samsung: Increase maximum baudrate tty: serial: samsung: Properly set flags in autoCTS mode tty: Use of_node_name_{eq,prefix} for node name comparisons tty/serial: do not free trasnmit buffer page under port lock serial: 8250: Rate limit serial port rx interrupts during input overruns dt-bindings: serial: 8250: Add rate limit for serial port input overruns ...
2018-12-29Merge tag 'usb-4.21-rc1' of ↵Linus Torvalds12-32/+216
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB/PHY updates from Greg KH: "Here is the big set of USB and PHY driver patches for 4.21-rc1. All of the usual bits are in here: - loads of USB gadget driver updates and additions - new device ids - phy driver updates - xhci reworks and new features - typec updates Full details are in the shortlog. All of these have been in linux-next for a long time with no reported issues" * tag 'usb-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (142 commits) USB: serial: option: add Fibocom NL678 series cdc-acm: fix abnormal DATA RX issue for Mediatek Preloader. usb: r8a66597: Fix a possible concurrency use-after-free bug in r8a66597_endpoint_disable() usb: typec: tcpm: Extend the matching rules on PPS APDO selection usb: typec: Improve Alt Mode documentation usb: musb: dsps: fix runtime pm for peripheral mode usb: musb: dsps: fix otg state machine USB: serial: pl2303: add ids for Hewlett-Packard HP POS pole displays usb: renesas_usbhs: add support for RZ/G2E usb: ehci-omap: Fix deferred probe for phy handling usb: roles: Add a description for the class to Kconfig usb: renesas_usbhs: mark PM functions as __maybe_unused usb: core: Remove unnecessary memset() usb: host: isp1362-hcd: convert to DEFINE_SHOW_ATTRIBUTE phy: qcom-qmp: Expose provided clocks to DT dt-bindings: phy-qcom-qmp: Move #clock-cells to child phy: qcom-qmp: Utilize fully-specified DT registers dt-bindings: phy-qcom-qmp: Fix register underspecification phy: ti: fix semicolon.cocci warnings phy: dphy: Add configuration helpers ...
2018-12-29Merge tag 'for-v4.21' of ↵Linus Torvalds5-0/+88
git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply Pull power supply and reset updates from Sebastian Reichel: - New core support: - battery internal resistance - battery OCV capacity lookup table - support for custom sysfs attributes - Convert all drivers to use power-supply core support for custom sysfs attributes - bq24190-charger: bq24196 support - axp20x-charger: AXP813 support - sc27xx-battery: new fuel gauge driver - gpio-poweroff: support for specific active and inactive delays - Misc fixes * tag 'for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (53 commits) power: supply: bq25890: fix BAT_COMP field definition power: supply: gpio-charger: Do not use deprecated POWER_SUPPLY_TYPE_USB_* power: supply: ds2781: switch to devm_power_supply_register power: supply: ds2780: switch to devm_power_supply_register power: supply: ds2781: fix race-condition in bin attribute registration power: supply: ds2780: fix race-condition in bin attribute registration power: supply: pcf50633: fix race-condition in sysfs registration power: supply: charger-manager: fix race-condition in sysfs registration power: supply: charger-manager: simplify generation of sysfs attribute group name power: supply: bq24257: fix race-condition in sysfs registration power: supply: bq24190_charger: fix race-condition in sysfs registration power: supply: lp8788: fix race-condition in sysfs registration power: supply: ds2781: fix race-condition in sysfs registration power: supply: ds2780: fix race-condition in sysfs registration power: supply: bq2415x: fix race-condition in sysfs registration power: supply: core: add support for custom sysfs attributes power: supply: sc27xx: Save last battery capacity power: reset: at91-poweroff: move shdwc related data to one structure power: supply: sc27xx: Add suspend/resume interfaces power: supply: sc27xx: Add fuel gauge low voltage alarm ...
2018-12-29Merge tag 'devicetree-for-4.21' of ↵Linus Torvalds53-1307/+2338
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull Devicetree updates from Rob Herring: "The biggest highlight here is the start of using json-schema for DT bindings. Being able to validate bindings has been discussed for years with little progress. - Initial support for DT bindings using json-schema language. This is the start of converting DT bindings from free-form text to a structured format. - Reworking of initrd address initialization. This moves to using the phys address instead of virt addr in the DT parsing code. This rework was motivated by CONFIG_DEV_BLK_INITRD causing unnecessary rebuilding of lots of files. - Fix stale phandle entries in phandle cache - DT overlay validation improvements. This exposed several memory leak bugs which have been fixed. - Use node name and device_type helper functions in DT code - Last remaining conversions to using %pOFn printk specifier instead of device_node.name directly - Create new common RTC binding doc and move all trivial RTC devices out of trivial-devices.txt. - New bindings for Freescale MAG3110 magnetometer, Cadence Sierra PHY, and Xen shared memory - Update dtc to upstream version v1.4.7-57-gf267e674d145" * tag 'devicetree-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (68 commits) of: __of_detach_node() - remove node from phandle cache of: of_node_get()/of_node_put() nodes held in phandle cache gpio-omap.txt: add reg and interrupts properties dt-bindings: mrvl,intc: fix a trivial typo dt-bindings: iio: magnetometer: add dt-bindings for freescale mag3110 dt-bindings: Convert trivial-devices.txt to json-schema dt-bindings: arm: mrvl: amend Browstone compatible string dt-bindings: arm: Convert Tegra board/soc bindings to json-schema dt-bindings: arm: Convert ZTE board/soc bindings to json-schema dt-bindings: arm: Add missing Xilinx boards dt-bindings: arm: Convert Xilinx board/soc bindings to json-schema dt-bindings: arm: Convert VIA board/soc bindings to json-schema dt-bindings: arm: Convert ST STi board/soc bindings to json-schema dt-bindings: arm: Convert SPEAr board/soc bindings to json-schema dt-bindings: arm: Convert CSR SiRF board/soc bindings to json-schema dt-bindings: arm: Convert QCom board/soc bindings to json-schema dt-bindings: arm: Convert TI nspire board/soc bindings to json-schema dt-bindings: arm: Convert TI davinci board/soc bindings to json-schema dt-bindings: arm: Convert Calxeda board/soc bindings to json-schema dt-bindings: arm: Convert Altera board/soc bindings to json-schema ...
2018-12-29Merge tag 'gpio-v4.21-1' of ↵Linus Torvalds8-14/+95
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO updates from Linus Walleij: "This is the bulk of GPIO changes for the v4.21 kernel series. Core changes: - Some core changes are already in outside of this pull request as they came through the regulator tree, most notably devm_gpiod_unhinge() that removes devres refcount management from a GPIO descriptor. This is needed in subsystems such as regulators where the regulator core need to take over the reference counting and lifecycle management for a GPIO descriptor. - We dropped devm_gpiochip_remove() and devm_gpio_chip_match() as nothing needs it. We can bring it back if need be. - Add a global TODO so people see where we are going. This helps setting the direction now that we are two GPIO maintainers. - Handle the MMC CD/WP properties in the device tree core. (The bulk of patches activating this code is already merged through the MMC/SD tree.) - Augment gpiochip_request_own_desc() to pass a flag so we as gpiochips can request lines as active low or open drain etc even from ourselves. New drivers: - New driver for Cadence GPIO blocks. - New driver for Atmel SAMA5D2 PIOBU GPIO lines. Driver improvements: - A major refactoring of the PCA953x driver - this driver has been around for ages, and is now modernized to reduce code duplication that has stacked up and is using regmap to read write and cache registers. - Intel drivers are now maintained in a separate tree and start with a round of cleanups and unifications" * tag 'gpio-v4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (99 commits) gpio: sama5d2-piobu: Depend on OF_GPIO gpio: Add Cadence GPIO driver dt-bindings: gpio: Add bindings for Cadence GPIO gpiolib-acpi: remove unused variable 'err', cleans up build warning gpio: mxs: read pin level directly instead of using .get gpio: aspeed: remove duplicated statement gpio: add driver for SAMA5D2 PIOBU pins dt-bindings: arm: atmel: describe SECUMOD usage as a GPIO controller gpio/mmc/of: Respect polarity in the device tree dt-bindings: gpio: rcar: Add r8a774c0 (RZ/G2E) support memory: omap-gpmc: Get the header of the enum ARM: omap1: Fix new user of gpiochip_request_own_desc() gpio: pca953x: Add regmap dependency for PCA953x driver gpio: raspberrypi-exp: decrease refcount on firmware dt node gpiolib: Fix return value of gpio_to_desc() stub if !GPIOLIB gpio: pca953x: Restore registers after suspend/resume cycle gpio: pca953x: Zap single use of pca953x_read_single() gpio: pca953x: Zap ad-hoc reg_output cache gpio: pca953x: Zap ad-hoc reg_direction cache gpio: pca953x: Perform basic regmap conversion ...
2018-12-29Merge tag 'hwmon-for-v4.21' of ↵Linus Torvalds12-8/+235
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon updates from Guenter Roeck: "The big change in this series is for the most part automatic: Introducing SENSOR[_DEVICE]_ATTR_{RO,RW,WO} variants and conversion of various drivers to use it. This is similar to DEVICE_ATTR variants. Other than that, we have - Some conversions of S_<PERMS> with octal values, also automated - Added support for Hygon Dhyana CPUs to k10temp driver - Added support for STLM75 to lm75 driver - B57891S0103 to ntc_thermistor - Added pm-runtime support to ina3221 driver - Support for PowerPC On-Chip Controller (OCC) - Various minor bug fices and improvements" * tag 'hwmon-for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (80 commits) hwmon: (lm80) fix a missing check of bus read in lm80 probe hwmon: (lm80) fix a missing check of the status of SMBus read hwmon: (asus_atk0110) Fix debugfs_simple_attr.cocci warnings hwmon: (ftsteutates) Use permission specific SENSOR[_DEVICE]_ATTR variants hwmon: (fschmd) Use permission specific SENSOR[_DEVICE]_ATTR variants hwmon: (emc6w201) Use permission specific SENSOR[_DEVICE]_ATTR variants hwmon: (emc2103) Use permission specific SENSOR[_DEVICE]_ATTR variants hwmon: (emc1403) Use permission specific SENSOR[_DEVICE]_ATTR variants hwmon: (ds620) Use permission specific SENSOR[_DEVICE]_ATTR variants hwmon: (ds1621) Use permission specific SENSOR[_DEVICE]_ATTR variants hwmon: (dell-smm-hwmon) Use permission specific SENSOR[_DEVICE]_ATTR variants hwmon: (da9055-hwmon) Use permission specific SENSOR[_DEVICE]_ATTR variants hwmon: (da9052-hwmon) Use permission specific SENSOR[_DEVICE]_ATTR variants hwmon: (coretemp) Replace S_<PERMS> with octal values hwmon: (asus_atk0110) Replace S_<PERMS> with octal values hwmon: (aspeed-pwm-tacho) Use permission specific SENSOR[_DEVICE]_ATTR variants hwmon: (applesmc) Replace S_<PERMS> with octal values hwmon: (amc6821) Use permission specific SENSOR[_DEVICE]_ATTR variants hwmon: (adt7x10) Use permission specific SENSOR[_DEVICE]_ATTR variants hwmon: (adt7475) Use permission specific SENSOR[_DEVICE]_ATTR variants ...
2018-12-29Merge branch 'next' into for-linusDmitry Torokhov2-0/+30
Prepare input updates for 4.21 merge window.
2018-12-29Merge branch 'akpm' (patches from Andrew)Linus Torvalds5-103/+272
Merge misc updates from Andrew Morton: - large KASAN update to use arm's "software tag-based mode" - a few misc things - sh updates - ocfs2 updates - just about all of MM * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (167 commits) kernel/fork.c: mark 'stack_vm_area' with __maybe_unused memcg, oom: notify on oom killer invocation from the charge path mm, swap: fix swapoff with KSM pages include/linux/gfp.h: fix typo mm/hmm: fix memremap.h, move dev_page_fault_t callback to hmm hugetlbfs: Use i_mmap_rwsem to fix page fault/truncate race hugetlbfs: use i_mmap_rwsem for more pmd sharing synchronization memory_hotplug: add missing newlines to debugging output mm: remove __hugepage_set_anon_rmap() include/linux/vmstat.h: remove unused page state adjustment macro mm/page_alloc.c: allow error injection mm: migrate: drop unused argument of migrate_page_move_mapping() blkdev: avoid migration stalls for blkdev pages mm: migrate: provide buffer_migrate_page_norefs() mm: migrate: move migrate_page_lock_buffers() mm: migrate: lock buffers before migrate_page_move_mapping() mm: migration: factor out code to compute expected number of page references mm, page_alloc: enable pcpu_drain with zone capability kmemleak: add config to select auto scan mm/page_alloc.c: don't call kasan_free_pages() at deferred mem init ...
2018-12-29Merge tag 'mmc-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmcLinus Torvalds6-6/+64
Pull MMC updates from Ulf Hansson: "This time, this pull request contains changes crossing subsystems and archs/platforms, which is mainly because of a bigger modernization of moving from legacy GPIO to GPIO descriptors for MMC (by Linus Walleij). Additionally, once again, I am funneling changes to drivers/misc/cardreader/* and drivers/memstick/* through my MMC tree, mostly due to that we lack a maintainer for these. Summary: MMC core: - Cleanup BKOPS support - Introduce MMC_CAP_SYNC_RUNTIME_PM - slot-gpio: Delete legacy slot GPIO handling MMC host: - alcor: Add new mmc host driver for Alcor Micro PCI based cardreader - bcm2835: Several improvements to better recover from errors - jz4740: Rework and fixup pre|post_req support - mediatek: Add support for SDIO IRQs - meson-gx: Improve clock phase management - meson-gx: Stop descriptor on errors - mmci: Complete the sbc error path by sending a stop command - renesas_sdhi/tmio: Fixup reset/resume operations - renesas_sdhi: Add support for r8a774c0 and R7S9210 - renesas_sdhi: Whitelist R8A77990 SDHI - renesas_sdhi: Fixup eMMC HS400 compatibility issues for H3 and M3-W - rtsx_usb_sdmmc: Re-work card detection/removal support - rtsx_usb_sdmmc: Re-work runtime PM support - sdhci: Fix timeout loops for some variant drivers - sdhci: Improve support for error handling due to failing commands - sdhci-acpi/pci: Disable LED control for Intel BYT-based controllers - sdhci_am654: Add new SDHCI variant driver to support TI's AM654 SOCs - sdhci-of-esdhc: Add support for eMMC HS400 mode - sdhci-omap: Fixup reset support - sdhci-omap: Workaround errata regarding SDR104/HS200 tuning failures - sdhci-msm: Fixup sporadic write transfers issues for SDR104/HS200 - sdhci-msm: Fixup dynamical clock gating issues - various: Complete converting all hosts into using slot GPIO descriptors Other: - Move GPIO mmc platform data for mips/sh/arm to GPIO descriptors - Add new Alcor Micro cardreader PCI driver - Support runtime power management for memstick rtsx_usb_ms driver - Use USB remote wakeups for card detection for rtsx_usb misc driver" * tag 'mmc-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (99 commits) mmc: mediatek: Add MMC_CAP_SDIO_IRQ support mmc: renesas_sdhi_internal_dmac: Whitelist r8a774c0 dt-bindings: mmc: renesas_sdhi: Add r8a774c0 support mmc: core: Cleanup BKOPS support mmc: core: Drop redundant check in mmc_send_hpi_cmd() mmc: sdhci-omap: Workaround errata regarding SDR104/HS200 tuning failures (i929) dt-bindings: sdhci-omap: Add note for cpu_thermal mmc: sdhci-acpi: Disable LED control for Intel BYT-based controllers mmc: sdhci-pci: Disable LED control for Intel BYT-based controllers mmc: sdhci: Add quirk to disable LED control mmc: mmci: add variant property to set command stop bit misc: alcor_pci: fix spelling mistake "invailid" -> "invalid" mmc: meson-gx: add signal resampling mmc: meson-gx: align default phase on soc vendor tree mmc: meson-gx: remove useless lock mmc: meson-gx: make sure the descriptor is stopped on errors mmc: sdhci_am654: Add Initial Support for AM654 SDHCI driver dt-bindings: mmc: sdhci-of-arasan: Add deprecated message for AM65 dt-bindings: mmc: sdhci-am654: Document bindings for the host controllers on TI's AM654 SOCs mmc: sdhci-msm: avoid unused function warning ...
2018-12-29Merge tag 'libnvdimm-for-4.21' of ↵Linus Torvalds2-1/+146
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm updates from Dan Williams: "The vast bulk of this update is the new support for the security capabilities of some nvdimms. The userspace tooling for this capability is still a work in progress, but the changes survive the existing libnvdimm unit tests. The changes also pass manual checkout on hardware and the new nfit_test emulation of the security capability. The touches of the security/keys/ files have received the necessary acks from Mimi and David. Those changes were necessary to allow for a new generic encrypted-key type, and allow the nvdimm sub-system to lookup key material referenced by the libnvdimm-sysfs interface. Summary: - Add support for the security features of nvdimm devices that implement a security model similar to ATA hard drive security. The security model supports locking access to the media at device-power-loss, to be unlocked with a passphrase, and secure-erase (crypto-scramble). Unlike the ATA security case where the kernel expects device security to be managed in a pre-OS environment, the libnvdimm security implementation allows key provisioning and key-operations at OS runtime. Keys are managed with the kernel's encrypted-keys facility to provide data-at-rest security for the libnvdimm key material. The usage model mirrors fscrypt key management, but is driven via libnvdimm sysfs. - Miscellaneous updates for api usage and comment fixes" * tag 'libnvdimm-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (21 commits) libnvdimm/security: Quiet security operations libnvdimm/security: Add documentation for nvdimm security support tools/testing/nvdimm: add Intel DSM 1.8 support for nfit_test tools/testing/nvdimm: Add overwrite support for nfit_test tools/testing/nvdimm: Add test support for Intel nvdimm security DSMs acpi/nfit, libnvdimm/security: add Intel DSM 1.8 master passphrase support acpi/nfit, libnvdimm/security: Add security DSM overwrite support acpi/nfit, libnvdimm: Add support for issue secure erase DSM to Intel nvdimm acpi/nfit, libnvdimm: Add enable/update passphrase support for Intel nvdimms acpi/nfit, libnvdimm: Add disable passphrase support to Intel nvdimm. acpi/nfit, libnvdimm: Add unlock of nvdimm support for Intel DIMMs acpi/nfit, libnvdimm: Add freeze security support to Intel nvdimm acpi/nfit, libnvdimm: Introduce nvdimm_security_ops keys-encrypted: add nvdimm key format type to encrypted keys keys: Export lookup_user_key to external users acpi/nfit, libnvdimm: Store dimm id as a member to struct nvdimm libnvdimm, namespace: Replace kmemdup() with kstrndup() libnvdimm, label: Switch to bitmap_zalloc() ACPI/nfit: Adjust annotation for why return 0 if fail to find NFIT at start libnvdimm, bus: Check id immediately following ida_simple_get ...
2018-12-29Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds3-2/+37
Pull SCSI updates from James Bottomley: "This is mostly update of the usual drivers: smarpqi, lpfc, qedi, megaraid_sas, libsas, zfcp, mpt3sas, hisi_sas. Additionally, we have a pile of annotation, unused variable and minor updates. The big API change is the updates for Christoph's DMA rework which include removing the DISABLE_CLUSTERING flag. And finally there are a couple of target tree updates" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (259 commits) scsi: isci: request: mark expected switch fall-through scsi: isci: remote_node_context: mark expected switch fall-throughs scsi: isci: remote_device: Mark expected switch fall-throughs scsi: isci: phy: Mark expected switch fall-through scsi: iscsi: Capture iscsi debug messages using tracepoints scsi: myrb: Mark expected switch fall-throughs scsi: megaraid: fix out-of-bound array accesses scsi: mpt3sas: mpt3sas_scsih: Mark expected switch fall-through scsi: fcoe: remove set but not used variable 'port' scsi: smartpqi: call pqi_free_interrupts() in pqi_shutdown() scsi: smartpqi: fix build warnings scsi: smartpqi: update driver version scsi: smartpqi: add ofa support scsi: smartpqi: increase fw status register read timeout scsi: smartpqi: bump driver version scsi: smartpqi: add smp_utils support scsi: smartpqi: correct lun reset issues scsi: smartpqi: correct volume status scsi: smartpqi: do not offline disks for transient did no connect conditions scsi: smartpqi: allow for larger raid maps ...
2018-12-29Merge tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mappingLinus Torvalds3-52/+15
Pull DMA mapping updates from Christoph Hellwig: "A huge update this time, but a lot of that is just consolidating or removing code: - provide a common DMA_MAPPING_ERROR definition and avoid indirect calls for dma_map_* error checking - use direct calls for the DMA direct mapping case, avoiding huge retpoline overhead for high performance workloads - merge the swiotlb dma_map_ops into dma-direct - provide a generic remapping DMA consistent allocator for architectures that have devices that perform DMA that is not cache coherent. Based on the existing arm64 implementation and also used for csky now. - improve the dma-debug infrastructure, including dynamic allocation of entries (Robin Murphy) - default to providing chaining scatterlist everywhere, with opt-outs for the few architectures (alpha, parisc, most arm32 variants) that can't cope with it - misc sparc32 dma-related cleanups - remove the dma_mark_clean arch hook used by swiotlb on ia64 and replace it with the generic noncoherent infrastructure - fix the return type of dma_set_max_seg_size (Niklas Söderlund) - move the dummy dma ops for not DMA capable devices from arm64 to common code (Robin Murphy) - ensure dma_alloc_coherent returns zeroed memory to avoid kernel data leaks through userspace. We already did this for most common architectures, but this ensures we do it everywhere. dma_zalloc_coherent has been deprecated and can hopefully be removed after -rc1 with a coccinelle script" * tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mapping: (73 commits) dma-mapping: fix inverted logic in dma_supported dma-mapping: deprecate dma_zalloc_coherent dma-mapping: zero memory returned from dma_alloc_* sparc/iommu: fix ->map_sg return value sparc/io-unit: fix ->map_sg return value arm64: default to the direct mapping in get_arch_dma_ops PCI: Remove unused attr variable in pci_dma_configure ia64: only select ARCH_HAS_DMA_COHERENT_TO_PFN if swiotlb is enabled dma-mapping: bypass indirect calls for dma-direct vmd: use the proper dma_* APIs instead of direct methods calls dma-direct: merge swiotlb_dma_ops into the dma_direct code dma-direct: use dma_direct_map_page to implement dma_direct_map_sg dma-direct: improve addressability error reporting swiotlb: remove dma_mark_clean swiotlb: remove SWIOTLB_MAP_ERROR ACPI / scan: Refactor _CCA enforcement dma-mapping: factor out dummy DMA ops dma-mapping: always build the direct mapping code dma-mapping: move dma_cache_sync out of line dma-mapping: move various slow path functions out of line ...
2018-12-29Merge tag 'for-4.21/block-20181221' of git://git.kernel.dk/linux-blockLinus Torvalds6-390/+43
Pull block updates from Jens Axboe: "This is the main pull request for block/storage for 4.21. Larger than usual, it was a busy round with lots of goodies queued up. Most notable is the removal of the old IO stack, which has been a long time coming. No new features for a while, everything coming in this week has all been fixes for things that were previously merged. This contains: - Use atomic counters instead of semaphores for mtip32xx (Arnd) - Cleanup of the mtip32xx request setup (Christoph) - Fix for circular locking dependency in loop (Jan, Tetsuo) - bcache (Coly, Guoju, Shenghui) * Optimizations for writeback caching * Various fixes and improvements - nvme (Chaitanya, Christoph, Sagi, Jay, me, Keith) * host and target support for NVMe over TCP * Error log page support * Support for separate read/write/poll queues * Much improved polling * discard OOM fallback * Tracepoint improvements - lightnvm (Hans, Hua, Igor, Matias, Javier) * Igor added packed metadata to pblk. Now drives without metadata per LBA can be used as well. * Fix from Geert on uninitialized value on chunk metadata reads. * Fixes from Hans and Javier to pblk recovery and write path. * Fix from Hua Su to fix a race condition in the pblk recovery code. * Scan optimization added to pblk recovery from Zhoujie. * Small geometry cleanup from me. - Conversion of the last few drivers that used the legacy path to blk-mq (me) - Removal of legacy IO path in SCSI (me, Christoph) - Removal of legacy IO stack and schedulers (me) - Support for much better polling, now without interrupts at all. blk-mq adds support for multiple queue maps, which enables us to have a map per type. This in turn enables nvme to have separate completion queues for polling, which can then be interrupt-less. Also means we're ready for async polled IO, which is hopefully coming in the next release. - Killing of (now) unused block exports (Christoph) - Unification of the blk-rq-qos and blk-wbt wait handling (Josef) - Support for zoned testing with null_blk (Masato) - sx8 conversion to per-host tag sets (Christoph) - IO priority improvements (Damien) - mq-deadline zoned fix (Damien) - Ref count blkcg series (Dennis) - Lots of blk-mq improvements and speedups (me) - sbitmap scalability improvements (me) - Make core inflight IO accounting per-cpu (Mikulas) - Export timeout setting in sysfs (Weiping) - Cleanup the direct issue path (Jianchao) - Export blk-wbt internals in block debugfs for easier debugging (Ming) - Lots of other fixes and improvements" * tag 'for-4.21/block-20181221' of git://git.kernel.dk/linux-block: (364 commits) kyber: use sbitmap add_wait_queue/list_del wait helpers sbitmap: add helpers for add/del wait queue handling block: save irq state in blkg_lookup_create() dm: don't reuse bio for flushes nvme-pci: trace SQ status on completions nvme-rdma: implement polling queue map nvme-fabrics: allow user to pass in nr_poll_queues nvme-fabrics: allow nvmf_connect_io_queue to poll nvme-core: optionally poll sync commands block: make request_to_qc_t public nvme-tcp: fix spelling mistake "attepmpt" -> "attempt" nvme-tcp: fix endianess annotations nvmet-tcp: fix endianess annotations nvme-pci: refactor nvme_poll_irqdisable to make sparse happy nvme-pci: only set nr_maps to 2 if poll queues are supported nvmet: use a macro for default error location nvmet: fix comparison of a u16 with -1 blk-mq: enable IO poll if .nr_queues of type poll > 0 blk-mq: change blk_mq_queue_busy() to blk_mq_queue_inflight() blk-mq: skip zero-queue maps in blk_mq_map_swqueue ...
2018-12-28Merge tag 'y2038-for-4.21' of ↵Linus Torvalds1-8/+0
ssh://gitolite.kernel.org:/pub/scm/linux/kernel/git/arnd/playground Pull y2038 updates from Arnd Bergmann: "More syscalls and cleanups This concludes the main part of the system call rework for 64-bit time_t, which has spread over most of year 2018, the last six system calls being - ppoll - pselect6 - io_pgetevents - recvmmsg - futex - rt_sigtimedwait As before, nothing changes for 64-bit architectures, while 32-bit architectures gain another entry point that differs only in the layout of the timespec structure. Hopefully in the next release we can wire up all 22 of those system calls on all 32-bit architectures, which gives us a baseline version for glibc to start using them. This does not include the clock_adjtime, getrusage/waitid, and getitimer/setitimer system calls. I still plan to have new versions of those as well, but they are not required for correct operation of the C library since they can be emulated using the old 32-bit time_t based system calls. Aside from the system calls, there are also a few cleanups here, removing old kernel internal interfaces that have become unused after all references got removed. The arch/sh cleanups are part of this, there were posted several times over the past year without a reaction from the maintainers, while the corresponding changes made it into all other architectures" * tag 'y2038-for-4.21' of ssh://gitolite.kernel.org:/pub/scm/linux/kernel/git/arnd/playground: timekeeping: remove obsolete time accessors vfs: replace current_kernel_time64 with ktime equivalent timekeeping: remove timespec_add/timespec_del timekeeping: remove unused {read,update}_persistent_clock sh: remove board_time_init() callback sh: remove unused rtc_sh_get/set_time infrastructure sh: sh03: rtc: push down rtc class ops into driver sh: dreamcast: rtc: push down rtc class ops into driver y2038: signal: Add compat_sys_rt_sigtimedwait_time64 y2038: signal: Add sys_rt_sigtimedwait_time32 y2038: socket: Add compat_sys_recvmmsg_time64 y2038: futex: Add support for __kernel_timespec y2038: futex: Move compat implementation into futex.c io_pgetevents: use __kernel_timespec pselect6: use __kernel_timespec ppoll: use __kernel_timespec signal: Add restore_user_sigmask() signal: Add set_user_sigmask()
2018-12-28mm, proc: report PR_SET_THP_DISABLE in procMichal Hocko1-0/+3
David Rientjes has reported that commit 1860033237d4 ("mm: make PR_SET_THP_DISABLE immediately active") has changed the way how we report THPable VMAs to the userspace. Their monitoring tool is triggering false alarms on PR_SET_THP_DISABLE tasks because it considers an insufficient THP usage as a memory fragmentation resp. memory pressure issue. Before the said commit each newly created VMA inherited VM_NOHUGEPAGE flag and that got exposed to the userspace via /proc/<pid>/smaps file. This implementation had its downsides as explained in the commit message but it is true that the userspace doesn't have any means to query for the process wide THP enabled/disabled status. PR_SET_THP_DISABLE is a process wide flag so it makes a lot of sense to export in the process wide context rather than per-vma. Introduce a new field to /proc/<pid>/status which export this status. If PR_SET_THP_DISABLE is used then it reports false same as when the THP is not compiled in. It doesn't consider the global THP status because we already export that information via sysfs Link: http://lkml.kernel.org/r/20181211143641.3503-4-mhocko@kernel.org Fixes: 1860033237d4 ("mm: make PR_SET_THP_DISABLE immediately active") Signed-off-by: Michal Hocko <mhocko@suse.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Reported-by: David Rientjes <rientjes@google.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Jan Kara <jack@suse.cz> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Paul Oppenheimer <bepvte@gmail.com> Cc: William Kucharski <william.kucharski@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-12-28mm, thp, proc: report THP eligibility for each vmaMichal Hocko1-0/+3
Userspace falls short when trying to find out whether a specific memory range is eligible for THP. There are usecases that would like to know that http://lkml.kernel.org/r/alpine.DEB.2.21.1809251248450.50347@chino.kir.corp.google.com : This is used to identify heap mappings that should be able to fault thp : but do not, and they normally point to a low-on-memory or fragmentation : issue. The only way to deduce this now is to query for hg resp. nh flags and confronting the state with the global setting. Except that there is also PR_SET_THP_DISABLE that might change the picture. So the final logic is not trivial. Moreover the eligibility of the vma depends on the type of VMA as well. In the past we have supported only anononymous memory VMAs but things have changed and shmem based vmas are supported as well these days and the query logic gets even more complicated because the eligibility depends on the mount option and another global configuration knob. Simplify the current state and report the THP eligibility in /proc/<pid>/smaps for each existing vma. Reuse transparent_hugepage_enabled for this purpose. The original implementation of this function assumes that the caller knows that the vma itself is supported for THP so make the core checks into __transparent_hugepage_enabled and use it for existing callers. __show_smap just use the new transparent_hugepage_enabled which also checks the vma support status (please note that this one has to be out of line due to include dependency issues). [mhocko@kernel.org: fix oops with NULL ->f_mapping] Link: http://lkml.kernel.org/r/20181224185106.GC16738@dhcp22.suse.cz Link: http://lkml.kernel.org/r/20181211143641.3503-3-mhocko@kernel.org Signed-off-by: Michal Hocko <mhocko@suse.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Dan Williams <dan.j.williams@intel.com> Cc: David Rientjes <rientjes@google.com> Cc: Jan Kara <jack@suse.cz> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Paul Oppenheimer <bepvte@gmail.com> Cc: William Kucharski <william.kucharski@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-12-28mm, proc: be more verbose about unstable VMA flags in /proc/<pid>/smapsMichal Hocko1-1/+3
Patch series "THP eligibility reporting via proc". This series of three patches aims at making THP eligibility reporting much more robust and long term sustainable. The trigger for the change is a regression report [2] and the long follow up discussion. In short the specific application didn't have good API to query whether a particular mapping can be backed by THP so it has used VMA flags to workaround that. These flags represent a deep internal state of VMAs and as such they should be used by userspace with a great deal of caution. A similar has happened for [3] when users complained that VM_MIXEDMAP is no longer set on DAX mappings. Again a lack of a proper API led to an abuse. The first patch in the series tries to emphasise that that the semantic of flags might change and any application consuming those should be really careful. The remaining two patches provide a more suitable interface to address [2] and provide a consistent API to query the THP status both for each VMA and process wide as well. [1] http://lkml.kernel.org/r/20181120103515.25280-1-mhocko@kernel.org [2] http://lkml.kernel.org/r/http://lkml.kernel.org/r/alpine.DEB.2.21.1809241054050.224429@chino.kir.corp.google.com [3] http://lkml.kernel.org/r/20181002100531.GC4135@quack2.suse.cz This patch (of 3): Even though vma flags exported via /proc/<pid>/smaps are explicitly documented to be not guaranteed for future compatibility the warning doesn't go far enough because it doesn't mention semantic changes to those flags. And they are important as well because these flags are a deep implementation internal to the MM code and the semantic might change at any time. Let's consider two recent examples: http://lkml.kernel.org/r/20181002100531.GC4135@quack2.suse.cz : commit e1fb4a086495 "dax: remove VM_MIXEDMAP for fsdax and device dax" has : removed VM_MIXEDMAP flag from DAX VMAs. Now our testing shows that in the : mean time certain customer of ours started poking into /proc/<pid>/smaps : and looks at VMA flags there and if VM_MIXEDMAP is missing among the VMA : flags, the application just fails to start complaining that DAX support is : missing in the kernel. http://lkml.kernel.org/r/alpine.DEB.2.21.1809241054050.224429@chino.kir.corp.google.com : Commit 1860033237d4 ("mm: make PR_SET_THP_DISABLE immediately active") : introduced a regression in that userspace cannot always determine the set : of vmas where thp is ineligible. : Userspace relies on the "nh" flag being emitted as part of /proc/pid/smaps : to determine if a vma is eligible to be backed by hugepages. : Previous to this commit, prctl(PR_SET_THP_DISABLE, 1) would cause thp to : be disabled and emit "nh" as a flag for the corresponding vmas as part of : /proc/pid/smaps. After the commit, thp is disabled by means of an mm : flag and "nh" is not emitted. : This causes smaps parsing libraries to assume a vma is eligible for thp : and ends up puzzling the user on why its memory is not backed by thp. In both cases userspace was relying on a semantic of a specific VMA flag. The primary reason why that happened is a lack of a proper interface. While this has been worked on and it will be fixed properly, it seems that our wording could see some refinement and be more vocal about semantic aspect of these flags as well. Link: http://lkml.kernel.org/r/20181211143641.3503-2-mhocko@kernel.org Signed-off-by: Michal Hocko <mhocko@suse.com> Acked-by: Jan Kara <jack@suse.cz> Acked-by: Dan Williams <dan.j.williams@intel.com> Acked-by: David Rientjes <rientjes@google.com> Acked-by: Mike Rapoport <rppt@linux.ibm.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Dan Williams <dan.j.williams@intel.com> Cc: David Rientjes <rientjes@google.com> Cc: Paul Oppenheimer <bepvte@gmail.com> Cc: William Kucharski <william.kucharski@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-12-28zram: writeback throttleMinchan Kim2-0/+40
If there are lots of write IO with flash device, it could have a wearout problem of storage. To overcome the problem, admin needs to design write limitation to guarantee flash health for entire product life. This patch creates a new knob "writeback_limit" for zram. writeback_limit's default value is 0 so that it doesn't limit any writeback. If admin want to measure writeback count in a certain period, he could know it via /sys/block/zram0/bd_stat's 3rd column. If admin want to limit writeback as per-day 400M, he could do it like below. MB_SHIFT=20 4K_SHIFT=12 echo $((400<<MB_SHIFT>>4K_SHIFT)) > \ /sys/block/zram0/writeback_limit. If admin want to allow further write again, he could do it like below echo 0 > /sys/block/zram0/writeback_limit If admin want to see remaining writeback budget, cat /sys/block/zram0/writeback_limit The writeback_limit count will reset whenever you reset zram (e.g., system reboot, echo 1 > /sys/block/zramX/reset) so keeping how many of writeback happened until you reset the zram to allocate extra writeback budget in next setting is user's job. [minchan@kernel.org: v4] Link: http://lkml.kernel.org/r/20181203024045.153534-8-minchan@kernel.org Link: http://lkml.kernel.org/r/20181127055429.251614-8-minchan@kernel.org Signed-off-by: Minchan Kim <minchan@kernel.org> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Joey Pabalinas <joeypabalinas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-12-28zram: add bd_stat statisticsMinchan Kim2-0/+19
bd_stat represents things that happened in the backing device. Currently it supports bd_counts, bd_reads and bd_writes which are helpful to understand wearout of flash and memory saving. [minchan@kernel.org: v4] Link: http://lkml.kernel.org/r/20181203024045.153534-7-minchan@kernel.org Link: http://lkml.kernel.org/r/20181127055429.251614-7-minchan@kernel.org Signed-off-by: Minchan Kim <minchan@kernel.org> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Joey Pabalinas <joeypabalinas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-12-28zram: support idle/huge page writebackMinchan Kim2-4/+31
Add a new feature "zram idle/huge page writeback". In the zram-swap use case, zram usually has many idle/huge swap pages. It's pointless to keep them in memory (ie, zram). To solve this problem, this feature introduces idle/huge page writeback to the backing device so the goal is to save more memory space on embedded systems. Normal sequence to use idle/huge page writeback feature is as follows, while (1) { # mark allocated zram slot to idle echo all > /sys/block/zram0/idle # leave system working for several hours # Unless there is no access for some blocks on zram, # they are still IDLE marked pages. echo "idle" > /sys/block/zram0/writeback or/and echo "huge" > /sys/block/zram0/writeback # write the IDLE or/and huge marked slot into backing device # and free the memory. } Per the discussion at https://lore.kernel.org/lkml/20181122065926.GG3441@jagdpanzerIV/T/#u, This patch removes direct incommpressibe page writeback feature (d2afd25114f4 ("zram: write incompressible pages to backing device")). Below concerns from Sergey: == &< == "IDLE writeback" is superior to "incompressible writeback". "incompressible writeback" is completely unpredictable and uncontrollable; it depens on data patterns and compression algorithms. While "IDLE writeback" is predictable. I even suspect, that, *ideally*, we can remove "incompressible writeback". "IDLE pages" is a super set which also includes "incompressible" pages. So, technically, we still can do "incompressible writeback" from "IDLE writeback" path; but a much more reasonable one, based on a page idling period. I understand that you want to keep "direct incompressible writeback" around. ZRAM is especially popular on devices which do suffer from flash wearout, so I can see "incompressible writeback" path becoming a dead code, long term. == &< == Below concerns from Minchan: == &< == My concern is if we enable CONFIG_ZRAM_WRITEBACK in this implementation, both hugepage/idlepage writeck will turn on. However someuser want to enable only idlepage writeback so we need to introduce turn on/off knob for hugepage or new CONFIG_ZRAM_IDLEPAGE_WRITEBACK for those usecase. I don't want to make it complicated *if possible*. Long term, I imagine we need to make VM aware of new swap hierarchy a little bit different with as-is. For example, first high priority swap can return -EIO or -ENOCOMP, swap try to fallback to next lower priority swap device. With that, hugepage writeback will work tranparently. So we could regard it as regression because incompressible pages doesn't go to backing storage automatically. Instead, user should do it via "echo huge" > /sys/block/zram/writeback" manually. == &< == Link: http://lkml.kernel.org/r/20181127055429.251614-6-minchan@kernel.org Signed-off-by: Minchan Kim <minchan@kernel.org> Reviewed-by: Joey Pabalinas <joeypabalinas@gmail.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>