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2018-12-31Merge tag 'armsoc-defconfig' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC defconfig updates from Olof Johansson: "Most changes here are to enable new drivers and platforms in the various configs that affect them. Most of these have been covered and described in the other branches, we mostly keep defconfig separate to avoid conflicts between SoC/dt/driver updates that they otherwise would be grouped with. One thing worth mentioning here is that OMAP changes from using their own UART driver, to 8250, for the multi_v7_defconfig shared config on 32-bit. This means that the console is now named ttyS* instead of ttyO*. This change was already done for omap2_defconfig a while back, so most users of these configs have either already updated, or can easily follow the same patterns as they did at that time. This makes platform support slightly easier for distros, since they no longer need to keep track of a separate console prefix for these platforms" * tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits) Revert "arm64: defconfig: Enable FSL_MC_BUS and FSL_MC_DPIO" arm64: defconfig: Enable FSL_MC_BUS and FSL_MC_DPIO arm64: defconfig: Replace PINCTRL_MT7622 with PINCTRL_MTK_MOORE arm64: defconfig: Regenerate for v4.20 ARM: multi_v7_defconfig: Add TOSHIBA TC358764 bridge driver ARM: multi_v7_defconfig: Add MAX8952 regulator driver ARM: exynos_defconfig: Add TOSHIBA TC358764 bridge driver ARM: exynos_defconfig: Add MAX8952 regulator driver ARM: exynos_defconfig: Add MAX8998 RTC and charger drivers ARM: imx_v6_v7_defconfig: add imx7ulp support ARM: imx_v6_v7_defconfig: Select TOUCHSCREEN_GOODIX ARM: multi_v7_defconfig: enable STM32 analog & timer drivers arm64: defconfig: Enable GCC and PINCTRL for MSM8998 arm64: defconfig: Enable core Qualcomm SDM845 options ARM: defconfig: Enable the PL111 DRM driver on vexpress ARM: defconfig: Update the vexpress defconfig arm64: defconfig: Enable some qcom remoteproc configs arm64: defconfig: Enable QCS404 configs ARM: imx_v6_v7_defconfig: Enable USB_ANNOUNCE_NEW_DEVICES ARM: imx_v6_v7_defconfig: Enable BT_BNEP ...
2018-12-31Merge tag 'armsoc-dt' of ↵Linus Torvalds
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 ...
2018-12-31Merge tag 'armsoc-drivers' of ↵Linus Torvalds
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 ...
2018-12-31Merge tag 'armsoc-soc' of ↵Linus Torvalds
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 Johansson
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 Torvalds
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 branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha Pull alpha architecture updates from Matt Turner: "A few small changes for alpha as well as the new system call table generation support from Firoz Khan" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha: alpha: Remove some unused variables alpha: rtc: simplify alpha_rtc_init alpha: Fix a typo on ptrace.h alpha: fix spelling mistake QSD_PORT_ACTUVE -> QSD_PORT_ACTIVE alpha: generate uapi header and syscall table header files alpha: add system call table generation support alpha: add __NR_syscalls along with NR_SYSCALLS alpha: remove CONFIG_OSF4_COMPAT flag from syscall table alpha: move __IGNORE* entries to non uapi header
2018-12-31Merge branch 'sched-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fix from Ingo Molnar: "This is a revert for a lockup in cgroups-intense workloads - the real fixes will come later" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/fair: Fix infinite loop in update_blocked_averages() by reverting a9e7f6544b9c
2018-12-31Merge tag 'dax-fix-4.21' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull dax fix from Dan Williams: "Clean up unnecessary usage of prepare_to_wait_exclusive(). While I feel a bit silly sending a single-commit pull-request there is nothing else queued up for dax this cycle. This change has shipped in -next for multiple releases" * tag 'dax-fix-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: dax: Use non-exclusive wait in wait_entry_unlocked()
2018-12-31Merge tag 'f2fs-for-4.21' of ↵Linus Torvalds
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 ...
2018-12-31block/swim3: Fix regression on PowerBook G3Finn Thain
As of v4.20, the swim3 driver crashes when loaded on a PowerBook G3 (Wallstreet). MacIO PCI driver attached to Gatwick chipset MacIO PCI driver attached to Heathrow chipset swim3 0.00015000:floppy: [fd0] SWIM3 floppy controller in media bay 0.00013020:ch-a: ttyS0 at MMIO 0xf3013020 (irq = 16, base_baud = 230400) is a Z85c30 ESCC - Serial port 0.00013000:ch-b: ttyS1 at MMIO 0xf3013000 (irq = 17, base_baud = 230400) is a Z85c30 ESCC - Infrared port macio: fixed media-bay irq on gatwick macio: fixed left floppy irqs swim3 1.00015000:floppy: [fd1] Couldn't request interrupt Unable to handle kernel paging request for data at address 0x00000024 Faulting instruction address: 0xc02652f8 Oops: Kernel access of bad area, sig: 11 [#1] BE SMP NR_CPUS=2 PowerMac Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.20.0 #2 NIP: c02652f8 LR: c026915c CTR: c0276d1c REGS: df43ba10 TRAP: 0300 Not tainted (4.20.0) MSR: 00009032 <EE,ME,IR,DR,RI> CR: 28228288 XER: 00000100 DAR: 00000024 DSISR: 40000000 GPR00: c026915c df43bac0 df439060 c0731524 df494700 00000000 c06e1c08 00000001 GPR08: 00000001 00000000 df5ff220 00001032 28228282 00000000 c0004ca4 00000000 GPR16: 00000000 00000000 00000000 c073144c dfffe064 c0731524 00000120 c0586108 GPR24: c073132c c073143c c073143c 00000000 c0731524 df67cd70 df494700 00000001 NIP [c02652f8] blk_mq_free_rqs+0x28/0xf8 LR [c026915c] blk_mq_sched_tags_teardown+0x58/0x84 Call Trace: [df43bac0] [c0045f50] flush_workqueue_prep_pwqs+0x178/0x1c4 (unreliable) [df43bae0] [c026915c] blk_mq_sched_tags_teardown+0x58/0x84 [df43bb00] [c02697f0] blk_mq_exit_sched+0x9c/0xb8 [df43bb20] [c0252794] elevator_exit+0x84/0xa4 [df43bb40] [c0256538] blk_exit_queue+0x30/0x50 [df43bb50] [c0256640] blk_cleanup_queue+0xe8/0x184 [df43bb70] [c034732c] swim3_attach+0x330/0x5f0 [df43bbb0] [c034fb24] macio_device_probe+0x58/0xec [df43bbd0] [c032ba88] really_probe+0x1e4/0x2f4 [df43bc00] [c032bd28] driver_probe_device+0x64/0x204 [df43bc20] [c0329ac4] bus_for_each_drv+0x60/0xac [df43bc50] [c032b824] __device_attach+0xe8/0x160 [df43bc80] [c032ab38] bus_probe_device+0xa0/0xbc [df43bca0] [c0327338] device_add+0x3d8/0x630 [df43bcf0] [c0350848] macio_add_one_device+0x444/0x48c [df43bd50] [c03509f8] macio_pci_add_devices+0x168/0x1bc [df43bd90] [c03500ec] macio_pci_probe+0xc0/0x10c [df43bda0] [c02ad884] pci_device_probe+0xd4/0x184 [df43bdd0] [c032ba88] really_probe+0x1e4/0x2f4 [df43be00] [c032bd28] driver_probe_device+0x64/0x204 [df43be20] [c032bfcc] __driver_attach+0x104/0x108 [df43be40] [c0329a00] bus_for_each_dev+0x64/0xb4 [df43be70] [c032add8] bus_add_driver+0x154/0x238 [df43be90] [c032ca24] driver_register+0x84/0x148 [df43bea0] [c0004aa0] do_one_initcall+0x40/0x188 [df43bf00] [c0690100] kernel_init_freeable+0x138/0x1d4 [df43bf30] [c0004cbc] kernel_init+0x18/0x10c [df43bf40] [c00121e4] ret_from_kernel_thread+0x14/0x1c Instruction dump: 5484d97e 4bfff4f4 9421ffe0 7c0802a6 bf410008 7c9e2378 90010024 8124005c 2f890000 419e0078 81230004 7c7c1b78 <81290024> 2f890000 419e0064 81440000 ---[ end trace 12025ab921a9784c ]--- Reverting commit 8ccb8cb1892b ("swim3: convert to blk-mq") resolves the problem. That commit added a struct blk_mq_tag_set to struct floppy_state and initialized it with a blk_mq_init_sq_queue() call. Unfortunately, there is a memset() in swim3_add_device() that subsequently clears the floppy_state struct. That means fs->tag_set->ops is a NULL pointer, and it gets dereferenced by blk_mq_free_rqs() which gets called in the request_irq() error path. Move the memset() to fix this bug. BTW, the request_irq() failure for the left mediabay floppy (fd1) is not a regression. I don't know why it happens. The right media bay floppy (fd0) works fine however. Reported-and-tested-by: Stan Johnson <userm57@yahoo.com> Fixes: 8ccb8cb1892b ("swim3: convert to blk-mq") Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-12-31block/swim3: Fix -EBUSY error when re-opening device after unmountFinn Thain
When the block device is opened with FMODE_EXCL, ref_count is set to -1. This value doesn't get reset when the device is closed which means the device cannot be opened again. Fix this by checking for refcount <= 0 in the release method. Reported-and-tested-by: Stan Johnson <userm57@yahoo.com> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-12-31block/swim3: Remove dead return statementFinn Thain
Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-12-31block/amiflop: Don't log error message on invalid ioctlFinn Thain
Cc: linux-m68k@lists.linux-m68k.org Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-12-31nfs: fixed broken compilation in nfs_callback_up_net()Vasily Averin
Patch fixes compilation error in nfs_callback_up_net() serv->sv_bc_enabled is defined under enabled CONFIG_SUNRPC_BACKCHANNEL, however nfs_callback_up_net() can access it even if this config option was not set. Fixes: a289ce5311f4 (sunrpc: replace svc_serv->sv_bc_xprt by boolean flag) Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Vasily Averin <vvs@virtuozzo.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2018-12-31Merge branch 'topic/xilinx' into for-linusVinod Koul
2018-12-31Merge branch 'topic/uniphier' into for-linusVinod Koul
2018-12-31Merge branch 'topic/sprd' into for-linusVinod Koul
2018-12-31Merge branch 'topic/sh' into for-linusVinod Koul
2018-12-31Merge branch 'topic/sa11x0' into for-linusVinod Koul
2018-12-31Merge branch 'topic/mtk' into for-linusVinod Koul
2018-12-31Merge branch 'topic/imx' into for-linusVinod Koul
2018-12-31Merge branch 'topic/ep93xx' into for-linusVinod Koul
2018-12-31Merge branch 'topic/dw' into for-linusVinod Koul
2018-12-31Merge branch 'topic/dmatest' into for-linusVinod Koul
2018-12-31Merge branch 'topic/dirn_remove' into for-linusVinod Koul
2018-12-31Merge branch 'topic/coh' into for-linusVinod Koul
2018-12-31Merge branch 'topic/bcm' into for-linusVinod Koul
2018-12-31rtc: rename core filesAlexandre Belloni
Rename core files so there is a clearer separation between the RTC core and the RTC drivers. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-12-31cifs: update internal module version numberSteve French
To version 2.15 Signed-off-by: Steve French <stfrench@microsoft.com>
2018-12-31cifs: we can not use small padding iovs together with encryptionRonnie Sahlberg
We can not append small padding buffers as separate iovs when encryption is used. For this case we must flatten the request into a single buffer containing both the data from all the iovs as well as the padding bytes. This is at least needed for 4.20 as well due to compounding changes. CC: Stable <stable@vger.kernel.org> Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2018-12-31rtc: nvmem: fix possible use after freeAlexandre Belloni
In cas of probe failure, devres may free the memory allocated for rtc->nvram before devm_rtc_release_device() is called. This leads to rtc_nvram_unregister using it after being freed which may lead to a crash. This has been shown to happen after commit 461e557b9727 ("rtc: nvmem: use devm_nvmem_register()") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-12-30sched/fair: Fix infinite loop in update_blocked_averages() by reverting ↵Linus Torvalds
a9e7f6544b9c Zhipeng Xie, Xie XiuQi and Sargun Dhillon reported lockups in the scheduler under high loads, starting at around the v4.18 time frame, and Zhipeng Xie tracked it down to bugs in the rq->leaf_cfs_rq_list manipulation. Do a (manual) revert of: a9e7f6544b9c ("sched/fair: Fix O(nr_cgroups) in load balance path") It turns out that the list_del_leaf_cfs_rq() introduced by this commit is a surprising property that was not considered in followup commits such as: 9c2791f936ef ("sched/fair: Fix hierarchical order in rq->leaf_cfs_rq_list") As Vincent Guittot explains: "I think that there is a bigger problem with commit a9e7f6544b9c and cfs_rq throttling: Let take the example of the following topology TG2 --> TG1 --> root: 1) The 1st time a task is enqueued, we will add TG2 cfs_rq then TG1 cfs_rq to leaf_cfs_rq_list and we are sure to do the whole branch in one path because it has never been used and can't be throttled so tmp_alone_branch will point to leaf_cfs_rq_list at the end. 2) Then TG1 is throttled 3) and we add TG3 as a new child of TG1. 4) The 1st enqueue of a task on TG3 will add TG3 cfs_rq just before TG1 cfs_rq and tmp_alone_branch will stay on rq->leaf_cfs_rq_list. With commit a9e7f6544b9c, we can del a cfs_rq from rq->leaf_cfs_rq_list. So if the load of TG1 cfs_rq becomes NULL before step 2) above, TG1 cfs_rq is removed from the list. Then at step 4), TG3 cfs_rq is added at the beginning of rq->leaf_cfs_rq_list but tmp_alone_branch still points to TG3 cfs_rq because its throttled parent can't be enqueued when the lock is released. tmp_alone_branch doesn't point to rq->leaf_cfs_rq_list whereas it should. So if TG3 cfs_rq is removed or destroyed before tmp_alone_branch points on another TG cfs_rq, the next TG cfs_rq that will be added, will be linked outside rq->leaf_cfs_rq_list - which is bad. In addition, we can break the ordering of the cfs_rq in rq->leaf_cfs_rq_list but this ordering is used to update and propagate the update from leaf down to root." Instead of trying to work through all these cases and trying to reproduce the very high loads that produced the lockup to begin with, simplify the code temporarily by reverting a9e7f6544b9c - which change was clearly not thought through completely. This (hopefully) gives us a kernel that doesn't lock up so people can continue to enjoy their holidays without worrying about regressions. ;-) [ mingo: Wrote changelog, fixed weird spelling in code comment while at it. ] Analyzed-by: Xie XiuQi <xiexiuqi@huawei.com> Analyzed-by: Vincent Guittot <vincent.guittot@linaro.org> Reported-by: Zhipeng Xie <xiezhipeng1@huawei.com> Reported-by: Sargun Dhillon <sargun@sargun.me> Reported-by: Xie XiuQi <xiexiuqi@huawei.com> Tested-by: Zhipeng Xie <xiezhipeng1@huawei.com> Tested-by: Sargun Dhillon <sargun@sargun.me> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Acked-by: Vincent Guittot <vincent.guittot@linaro.org> Cc: <stable@vger.kernel.org> # v4.13+ Cc: Bin Li <huawei.libin@huawei.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Fixes: a9e7f6544b9c ("sched/fair: Fix O(nr_cgroups) in load balance path") Link: http://lkml.kernel.org/r/1545879866-27809-1-git-send-email-xiexiuqi@huawei.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-12-30kgdb/treewide: constify struct kgdb_arch arch_kgdb_opsChristophe Leroy
checkpatch.pl reports the following: WARNING: struct kgdb_arch should normally be const #28: FILE: arch/mips/kernel/kgdb.c:397: +struct kgdb_arch arch_kgdb_ops = { This report makes sense, as all other ops struct, this one should also be const. This patch does the change. Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Michal Simek <monstr@monstr.eu> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Burton <paul.burton@mips.com> Cc: James Hogan <jhogan@kernel.org> Cc: Ley Foon Tan <lftan@altera.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Rich Felker <dalias@libc.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: x86@kernel.org Acked-by: Daniel Thompson <daniel.thompson@linaro.org> Acked-by: Paul Burton <paul.burton@mips.com> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Acked-by: Borislav Petkov <bp@suse.de> Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
2018-12-30mips/kgdb: prepare arch_kgdb_ops for constnessChristophe Leroy
MIPS is the only architecture modifying arch_kgdb_ops during init. This patch makes the init static, so that it can be changed to const in following patch, as recommended by checkpatch.pl Suggested-by: Paul Burton <paul.burton@mips.com> Acked-by: Daniel Thompson <daniel.thompson@linaro.org> Acked-by: Paul Burton <paul.burton@mips.com> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
2018-12-30kdb: use bool for binary state indicatorsNicholas Mc Guire
defcmd_in_progress is the state trace for command group processing - within a command group or not - usable is an indicator if a command set is valid (allocated/non-empty) - so use a bool for those binary indication here. Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
2018-12-30kdb: Don't back trace on a cpu that didn't round upDouglas Anderson
If you have a CPU that fails to round up and then run 'btc' you'll end up crashing in kdb becaue we dereferenced NULL. Let's add a check. It's wise to also set the task to NULL when leaving the debugger so that if we fail to round up on a later entry into the debugger we won't backtrace a stale task. Signed-off-by: Douglas Anderson <dianders@chromium.org> Acked-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
2018-12-30kgdb: Don't round up a CPU that failed rounding up beforeDouglas Anderson
If we're using the default implementation of kgdb_roundup_cpus() that uses smp_call_function_single_async() we can end up hanging kgdb_roundup_cpus() if we try to round up a CPU that failed to round up before. Specifically smp_call_function_single_async() will try to wait on the csd lock for the CPU that we're trying to round up. If the previous round up never finished then that lock could still be held and we'll just sit there hanging. There's not a lot of use trying to round up a CPU that failed to round up before. Let's keep a flag that indicates whether the CPU started but didn't finish to round up before. If we see that flag set then we'll skip the next round up. In general we have a few goals here: - We never want to end up calling smp_call_function_single_async() when the csd is still locked. This is accomplished because flush_smp_call_function_queue() unlocks the csd _before_ invoking the callback. That means that when kgdb_nmicallback() runs we know for sure the the csd is no longer locked. Thus when we set "rounding_up = false" we know for sure that the csd is unlocked. - If there are no timeouts rounding up we should never skip a round up. NOTE #1: In general trying to continue running after failing to round up CPUs doesn't appear to be supported in the debugger. When I simulate this I find that kdb reports "Catastrophic error detected" when I try to continue. I can overrule and continue anyway, but it should be noted that we may be entering the land of dragons here. Possibly the "Catastrophic error detected" was added _because_ of the future failure to round up, but even so this is an area of the code that hasn't been strongly tested. NOTE #2: I did a bit of testing before and after this change. I introduced a 10 second hang in the kernel while holding a spinlock that I could invoke on a certain CPU with 'taskset -c 3 cat /sys/...". Before this change if I did: - Invoke hang - Enter debugger - g (which warns about Catastrophic error, g again to go anyway) - g - Enter debugger ...I'd hang the rest of the 10 seconds without getting a debugger prompt. After this change I end up in the debugger the 2nd time after only 1 second with the standard warning about 'Timed out waiting for secondary CPUs.' I'll also note that once the CPU finished waiting I could actually debug it (aka "btc" worked) I won't promise that everything works perfectly if the errant CPU comes back at just the wrong time (like as we're entering or exiting the debugger) but it certainly seems like an improvement. NOTE #3: setting 'kgdb_info[cpu].rounding_up = false' is in kgdb_nmicallback() instead of kgdb_call_nmi_hook() because some implementations override kgdb_call_nmi_hook(). It shouldn't hurt to have it in kgdb_nmicallback() in any case. NOTE #4: this logic is really only needed because there is no API call like "smp_try_call_function_single_async()" or "smp_csd_is_locked()". If such an API existed then we'd use it instead, but it seemed a bit much to add an API like this just for kgdb. Signed-off-by: Douglas Anderson <dianders@chromium.org> Acked-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
2018-12-30kgdb: Fix kgdb_roundup_cpus() for arches who used smp_call_function()Douglas Anderson
When I had lockdep turned on and dropped into kgdb I got a nice splat on my system. Specifically it hit: DEBUG_LOCKS_WARN_ON(current->hardirq_context) Specifically it looked like this: sysrq: SysRq : DEBUG ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(current->hardirq_context) WARNING: CPU: 0 PID: 0 at .../kernel/locking/lockdep.c:2875 lockdep_hardirqs_on+0xf0/0x160 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.0 #27 pstate: 604003c9 (nZCv DAIF +PAN -UAO) pc : lockdep_hardirqs_on+0xf0/0x160 ... Call trace: lockdep_hardirqs_on+0xf0/0x160 trace_hardirqs_on+0x188/0x1ac kgdb_roundup_cpus+0x14/0x3c kgdb_cpu_enter+0x53c/0x5cc kgdb_handle_exception+0x180/0x1d4 kgdb_compiled_brk_fn+0x30/0x3c brk_handler+0x134/0x178 do_debug_exception+0xfc/0x178 el1_dbg+0x18/0x78 kgdb_breakpoint+0x34/0x58 sysrq_handle_dbg+0x54/0x5c __handle_sysrq+0x114/0x21c handle_sysrq+0x30/0x3c qcom_geni_serial_isr+0x2dc/0x30c ... ... irq event stamp: ...45 hardirqs last enabled at (...44): [...] __do_softirq+0xd8/0x4e4 hardirqs last disabled at (...45): [...] el1_irq+0x74/0x130 softirqs last enabled at (...42): [...] _local_bh_enable+0x2c/0x34 softirqs last disabled at (...43): [...] irq_exit+0xa8/0x100 ---[ end trace adf21f830c46e638 ]--- Looking closely at it, it seems like a really bad idea to be calling local_irq_enable() in kgdb_roundup_cpus(). If nothing else that seems like it could violate spinlock semantics and cause a deadlock. Instead, let's use a private csd alongside smp_call_function_single_async() to round up the other CPUs. Using smp_call_function_single_async() doesn't require interrupts to be enabled so we can remove the offending bit of code. In order to avoid duplicating this across all the architectures that use the default kgdb_roundup_cpus(), we'll add a "weak" implementation to debug_core.c. Looking at all the people who previously had copies of this code, there were a few variants. I've attempted to keep the variants working like they used to. Specifically: * For arch/arc we passed NULL to kgdb_nmicallback() instead of get_irq_regs(). * For arch/mips there was a bit of extra code around kgdb_nmicallback() NOTE: In this patch we will still get into trouble if we try to round up a CPU that failed to round up before. We'll try to round it up again and potentially hang when we try to grab the csd lock. That's not new behavior but we'll still try to do better in a future patch. Suggested-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Douglas Anderson <dianders@chromium.org> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Burton <paul.burton@mips.com> Cc: James Hogan <jhogan@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Rich Felker <dalias@libc.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
2018-12-30kgdb: Remove irq flags from roundupDouglas Anderson
The function kgdb_roundup_cpus() was passed a parameter that was documented as: > the flags that will be used when restoring the interrupts. There is > local_irq_save() call before kgdb_roundup_cpus(). Nobody used those flags. Anyone who wanted to temporarily turn on interrupts just did local_irq_enable() and local_irq_disable() without looking at them. So we can definitely remove the flags. Signed-off-by: Douglas Anderson <dianders@chromium.org> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Burton <paul.burton@mips.com> Cc: James Hogan <jhogan@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Rich Felker <dalias@libc.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
2018-12-29Merge tag 'kconfig-v4.21-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kconfig file consolidation from Masahiro Yamada: "Consolidation of bus (PCI, PCMCIA, EISA, RapidIO) config entries by Christoph Hellwig. Currently, every architecture that wants to provide common peripheral busses needs to add some boilerplate code and include the right Kconfig files. This series instead just selects the presence (when needed) and then handles everything in the bus-specific Kconfig file under drivers/" * tag 'kconfig-v4.21-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: pcmcia: remove per-arch PCMCIA config entry eisa: consolidate EISA Kconfig entry in drivers/eisa rapidio: consolidate RAPIDIO config entry in drivers/rapidio pcmcia: allow PCMCIA support independent of the architecture PCI: consolidate the PCI_SYSCALL symbol PCI: consolidate the PCI_DOMAINS and PCI_DOMAINS_GENERIC config options PCI: consolidate PCI config entry in drivers/pci MIPS: remove the HT_PCI config option
2018-12-29Merge tag 'kconfig-v4.21' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kconfig updates from Masahiro Yamada: - support -y option for merge_config.sh to avoid downgrading =y to =m - remove S_OTHER symbol type, and touch include/config/*.h files correctly - fix file name and line number in lexer warnings - fix memory leak when EOF is encountered in quotation - resolve all shift/reduce conflicts of the parser - warn no new line at end of file - make 'source' statement more strict to take only string literal - rewrite the lexer and remove the keyword lookup table - convert to SPDX License Identifier - compile C files independently instead of including them from zconf.y - fix various warnings of gconfig - misc cleanups * tag 'kconfig-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (39 commits) kconfig: surround dbg_sym_flags with #ifdef DEBUG to fix gconf warning kconfig: split images.c out of qconf.cc/gconf.c to fix gconf warnings kconfig: add static qualifiers to fix gconf warnings kconfig: split the lexer out of zconf.y kconfig: split some C files out of zconf.y kconfig: convert to SPDX License Identifier kconfig: remove keyword lookup table entirely kconfig: update current_pos in the second lexer kconfig: switch to ASSIGN_VAL state in the second lexer kconfig: stop associating kconf_id with yylval kconfig: refactor end token rules kconfig: stop supporting '.' and '/' in unquoted words treewide: surround Kconfig file paths with double quotes microblaze: surround string default in Kconfig with double quotes kconfig: use T_WORD instead of T_VARIABLE for variables kconfig: use specific tokens instead of T_ASSIGN for assignments kconfig: refactor scanning and parsing "option" properties kconfig: use distinct tokens for type and default properties kconfig: remove redundant token defines kconfig: rename depends_list to comment_option_list ...
2018-12-29Merge tag 'kbuild-v4.21' of ↵Linus Torvalds
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 ...
2018-12-29lib: don't depend on linux headers being installed.NeilBrown
gen_crc64table requires linux include files to be installed in /usr/include/linux. This is a new requrement so hosts that could previously build the kernel, now cannot. gen_crc64table makes this requirement by including <linux/swab.h>, but nothing from that header is actaully used. So remove the #include, so that the linux headers no longer need to be installed. Fixes: feba04fd2cf8 ("lib: add crc64 calculation routines") Signed-off-by: NeilBrown <neil@brown.name> Acked-by: Coly Li <colyli@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-12-29Merge tag 'docs-5.0' of git://git.lwn.net/linuxLinus Torvalds
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 Torvalds
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 branch 'for-4.21' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu Pull percpu update from Dennis Zhou: "Michael Cree noted generic UP Alpha has been broken since v3.18. This is a small fix for locking in UP percpu code that fixes the issue" * 'for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu: percpu: convert spin_lock_irq to spin_lock_irqsave.
2018-12-29Merge tag 'xtensa-20181228' of git://github.com/jcmvbkbc/linux-xtensaLinus Torvalds
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 Torvalds
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
2018-12-29gdrom: fix a memory leak bugWenwen Wang
In probe_gdrom(), the buffer pointed by 'gd.cd_info' is allocated through kzalloc() and is used to hold the information of the gdrom device. To register and unregister the device, the pointer 'gd.cd_info' is passed to the functions register_cdrom() and unregister_cdrom(), respectively. However, this buffer is not freed after it is used, which can cause a memory leak bug. This patch simply frees the buffer 'gd.cd_info' in exit_gdrom() to fix the above issue. Signed-off-by: Wenwen Wang <wang6495@umn.edu> Signed-off-by: Jens Axboe <axboe@kernel.dk>