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2020-08-11Merge tag 'backlight-next-5.9' of ↵Linus Torvalds39-717/+538
git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight Pull backlight updates from Lee Jones: "Core Framework: - Trivial: Code refactoring - New API backlight_is_blank() - New API backlight_get_brightness() - Additional/reworked documentation - Remove 'extern' labels from prototypes - Drop backlight_put() - Staticify of_find_backlight() Driver Removal: - Removal of unused OT200 driver - Removal of unused Generic Backlight driver Fix-ups - Bunch of W=1 warning fixes - Convert to GPIO descriptors; sky81452 - Move platform data handling into driver; sky81452 - Remove superfluous code; lms501kf03 - Many instances of using new APIs" * tag 'backlight-next-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: (34 commits) video: backlight: cr_bllcd: Remove unused variable 'intensity' backlight: backlight: Make of_find_backlight static backlight: backlight: Drop backlight_put() backlight: Use backlight_get_brightness() throughout backlight: jornada720_bl: Introduce backlight_is_blank() backlight: gpio_backlight: Simplify update_status() backlight: cr_bllcd: Introduce gpio-backlight semantics backlight: as3711_bl: Simplify update_status backlight: backlight: Introduce backlight_get_brightness() doc-rst: Wire-up Backlight kernel-doc documentation backlight: backlight: Add overview and update existing doc backlight: backlight: Drop extern from prototypes backlight: generic_bl: Remove this driver as it is unused backlight: backlight: Document enums in backlight.h backlight: backlight: Document inline functions in backlight.h backlight: backlight: Improve backlight_device documentation backlight: backlight: Improve backlight_properties documentation backlight: backlight: Improve backlight_ops documentation backlight: backlight: Add backlight_is_blank() backlight: backlight: Refactor fb_notifier_callback() ...
2020-08-11block: fix double account of flush request's driver tagMing Lei1-2/+9
In case of none scheduler, we share data request's driver tag for flush request, so have to mark the flush request as INFLIGHT for avoiding double account of this driver tag. Fixes: 568f27006577 ("blk-mq: centralise related handling into blk_mq_get_driver_tag") Reported-by: Matthew Wilcox <[email protected]> Signed-off-by: Ming Lei <[email protected]> Tested-by: Matthew Wilcox <[email protected]> Cc: Christoph Hellwig <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2020-08-11Merge tag 'hwlock-v5.9' of ↵Linus Torvalds4-61/+100
git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc Pull hwspinlock updates from Bjorn Andersson: "This introduces a new DT binding format to describe the Qualcomm hardware mutex block and deprecates the old, invalid, one. It also cleans up the Kconfig slightly" * tag 'hwlock-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc: dt-bindings: hwlock: qcom: Remove invalid binding hwspinlock: qcom: Allow mmio usage in addition to syscon dt-bindings: hwlock: qcom: Allow device on mmio bus dt-bindings: hwlock: qcom: Migrate binding to YAML hwspinlock: Simplify Kconfig
2020-08-11Merge tag 'rproc-v5.9' of ↵Linus Torvalds36-601/+2795
git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc Pull remoteproc updates from Bjorn Andersson: "This introduces a new "detached" state for remote processors that are deemed to be running at the time Linux boots and the infrastructure for "attaching" to these. It then introduces the support for performing this operation for the STM32 platform. The coredump functionality is moved out from the core file and gains support for an optional mode where the recovery phase awaits the notification from devcoredump that the dump should be released. This allows userspace to grab the coredump in scenarios where vmalloc space is too low for creating a complete copy of the coredump before handing this to devcoredump. A new character device based interface is introduced to allow tying the stoppage of a remote processor to the termination of a user space process. This is useful in situations when such process provides crucial resources/operations for the firmware running on the remote processor. The Texas Instrument K3 driver gains support for the C66x and C71x DSPs. Qualcomm remoteprocs gains support for stashing relocation information in IMEM, to aid post mortem debugging and the crash notification mechanism is generalized to be reusable in cases where loosely coupled drivers needs to know about the status of a remote processor. One such example is the IPA hardware block, which is jointly owned with the modem and migrated to this improved interface. It also introduces a number of bug fixes and debug improvements for the Qualcomm modem remoteproc driver. And it cleans up the inconsistent interface for remoteproc drivers to implement power management" * tag 'rproc-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc: (56 commits) remoteproc: core: Register the character device interface remoteproc: Add remoteproc character device interface remoteproc: kill IPA notify code net: ipa: new notification infrastructure remoteproc: k3-dsp: Add support for C71x DSPs dt-bindings: remoteproc: k3-dsp: Update bindings for C71x DSPs remoteproc: k3-dsp: Add support for L2RAM loading on C66x DSPs remoteproc: k3-dsp: Add a remoteproc driver of K3 C66x DSPs dt-bindings: remoteproc: Add bindings for C66x DSPs on TI K3 SoCs remoteproc: k3: Add TI-SCI processor control helper functions remoteproc: Introduce rproc_of_parse_firmware() helper dt-bindings: arm: keystone: Add common TI SCI bindings remoteproc: qcom_q6v5_mss: Remove redundant running state remoteproc: qcom: q6v5: Update running state before requesting stop remoteproc: qcom_q6v5_mss: Add modem debug policy support remoteproc: qcom_q6v5_mss: Validate modem blob firmware size before load remoteproc: qcom_q6v5_mss: Validate MBA firmware size before load rpmsg: update documentation remoteproc: qcom_q6v5_mss: Add MBA log extraction support remoteproc: Add coredump debugfs entry ...
2020-08-11Merge tag 'rpmsg-v5.9' of ↵Linus Torvalds1-29/+34
git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc Pull rpmsg update from Bjorn Andersson: "This ensures that rpmsg uses little-endian, per the VirtIO 1.0 specification" * tag 'rpmsg-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc: rpmsg: virtio: add endianness conversions
2020-08-11Merge tag 'libnvdimm-for-5.9' of ↵Linus Torvalds22-137/+1475
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm updayes from Vishal Verma: "You'd normally receive this pull request from Dan Williams, but he's busy watching a newborn (Congrats Dan!), so I'm watching libnvdimm this cycle. This adds a new feature in libnvdimm - 'Runtime Firmware Activation', and a few small cleanups and fixes in libnvdimm and DAX. I'd originally intended to make separate topic-based pull requests - one for libnvdimm, and one for DAX, but some of the DAX material fell out since it wasn't quite ready. Summary: - add 'Runtime Firmware Activation' support for NVDIMMs that advertise the relevant capability - misc libnvdimm and DAX cleanups" * tag 'libnvdimm-for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: libnvdimm/security: ensure sysfs poll thread woke up and fetch updated attr libnvdimm/security: the 'security' attr never show 'overwrite' state libnvdimm/security: fix a typo ACPI: NFIT: Fix ARS zero-sized allocation dax: Fix incorrect argument passed to xas_set_err() ACPI: NFIT: Add runtime firmware activate support PM, libnvdimm: Add runtime firmware activation support libnvdimm: Convert to DEVICE_ATTR_ADMIN_RO() drivers/dax: Expand lock scope to cover the use of addresses fs/dax: Remove unused size parameter dax: print error message by pr_info() in __generic_fsdax_supported() driver-core: Introduce DEVICE_ATTR_ADMIN_{RO,RW} tools/testing/nvdimm: Emulate firmware activation commands tools/testing/nvdimm: Prepare nfit_ctl_test() for ND_CMD_CALL emulation tools/testing/nvdimm: Add command debug messages tools/testing/nvdimm: Cleanup dimm index passing ACPI: NFIT: Define runtime firmware activation commands ACPI: NFIT: Move bus_dsm_mask out of generic nvdimm_bus_descriptor libnvdimm: Validate command family indices
2020-08-11net: qcom/emac: add missed clk_disable_unprepare in error path of ↵Wang Hai1-3/+14
emac_clks_phase1_init Fix the missing clk_disable_unprepare() before return from emac_clks_phase1_init() in the error handling case. Fixes: b9b17debc69d ("net: emac: emac gigabit ethernet controller driver") Reported-by: Hulk Robot <[email protected]> Signed-off-by: Wang Hai <[email protected]> Acked-by: Timur Tabi <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-08-11ionic_lif: Use devm_kcalloc() in ionic_qcq_alloc()Xu Wang1-2/+2
A multiplication for the size determination of a memory allocation indicated that an array data structure should be processed. Thus use the corresponding function "devm_kcalloc". Signed-off-by: Xu Wang <[email protected]> Acked-by: Shannon Nelson <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-08-11net/nfc/rawsock.c: add CAP_NET_RAW check.Qingyu Li1-2/+5
When creating a raw AF_NFC socket, CAP_NET_RAW needs to be checked first. Signed-off-by: Qingyu Li <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-08-11hinic: fix strncpy output truncated compile warningsLuo bin2-22/+12
fix the compile warnings of 'strncpy' output truncated before terminating nul copying N bytes from a string of the same length Signed-off-by: Luo bin <[email protected]> Reported-by: kernel test robot <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-08-11drivers/net/wan/x25_asy: Added needed_headroom and a skb->len checkXie He1-0/+14
1. Added a skb->len check This driver expects upper layers to include a pseudo header of 1 byte when passing down a skb for transmission. This driver will read this 1-byte header. This patch added a skb->len check before reading the header to make sure the header exists. 2. Added needed_headroom When this driver transmits data, first this driver will remove a pseudo header of 1 byte, then the lapb module will prepend the LAPB header of 2 or 3 bytes. So the value of needed_headroom in this driver should be 3 - 1. Cc: Willem de Bruijn <[email protected]> Cc: Martin Schiller <[email protected]> Signed-off-by: Xie He <[email protected]> Acked-by: Willem de Bruijn <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-08-11net/tls: Fix kmap usageIra Weiny1-1/+2
When MSG_OOB is specified to tls_device_sendpage() the mapped page is never unmapped. Hold off mapping the page until after the flags are checked and the page is actually needed. Fixes: e8f69799810c ("net/tls: Add generic NIC offload infrastructure") Signed-off-by: Ira Weiny <[email protected]> Reviewed-by: Jakub Kicinski <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-08-11doc/zh_CN: resolve undefined label warning in admin-guide indexLukas Bulwahn1-1/+1
Documentation generation warns: Documentation/translations/zh_CN/admin-guide/index.rst:3: WARNING: undefined label: documentation/admin-guide/index.rst Use doc reference for .rst files to resolve the warning. Fixes: 37a607cf2318 ("doc/zh_CN: add admin-guide index") Signed-off-by: Lukas Bulwahn <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2020-08-11doc/zh_CN: fix title heading markup in admin-guide cpu-loadLukas Bulwahn1-2/+2
Documentation generation warns: Documentation/translations/zh_CN/admin-guide/cpu-load.rst:1: WARNING: Title overline too short. Extend title heading markup by one. It was just off by one. Fixes: e210c66d567c ("doc/zh_CN: add cpu-load Chinese version") Signed-off-by: Lukas Bulwahn <[email protected]> Acked-by: Tao Zhou <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2020-08-11docs: remove the 2.6 "Upgrading I2C Drivers" guideStephen Kitt2-286/+0
All the drivers have long since been upgraded, and all the important information here is also included in the "Implementing I2C device drivers" guide. Signed-off-by: Stephen Kitt <[email protected]> Reviewed-by: Wolfram Sang <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2020-08-11docs: Correct the release date of 5.2 stableBilly Wilson1-1/+1
A table lists the 5.2 stable release date as September 15, but it was released on July 7. This may confuse a reader who is trying to understand the stable update release cycle. Signed-off-by: Billy Wilson <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2020-08-11mailmap: Update comments for with format and more detalisKees Cook1-2/+7
Without having first read the git-shortlog man-page, the format of .mailmap may not be immediately obvious. Add comments with pointers to the man-page, along with other details. Signed-off-by: Kees Cook <[email protected]> Link: https://lore.kernel.org/r/202008080013.58EBD83@keescook Signed-off-by: Jonathan Corbet <[email protected]>
2020-08-11docs: cdrom: Fix a typo and rst markupRemi Andruccioli1-2/+2
"The capability fags" should be "The capability flags". In rst markup, a incorrect markup expression is causing bad rendering in Sphinx output. Replace the erroneous single quote by a backquote. Signed-off-by: Remi Andruccioli <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2020-08-11Doc: admin-guide: use correct legends in kernel-parameters.txtRandy Dunlap1-18/+18
Documentation/admin-guide/kernel-parameters.rst includes a legend telling us what configurations or hardware platforms are relevant for certain boot options. For X86, it is spelled "X86" and for x86_64, it is spelled "X86-64", so make corrections for those. Signed-off-by: Randy Dunlap <[email protected]> Cc: Jonathan Corbet <[email protected]> Cc: [email protected] Cc: Thomas Gleixner <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2020-08-11Documentation/features: refresh RISC-V arch support filesTobias Klauser4-4/+4
Support for these was added by the following commits: f2c9699f6555 ("riscv: Add STACKPROTECTOR supported") 3c4697982982 ("riscv: Enable LOCKDEP_SUPPORT & fixup TRACE_IRQFLAGS_SUPPORT"). ed48b297fe21 ("riscv: Enable context tracking") cbb3d91d3bcf ("riscv: Add kmemleak support") Signed-off-by: Tobias Klauser <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2020-08-11documentation: coccinelle: Improve command example for make C={1,2}Sumera Priyadarsini1-4/+11
Modify coccinelle documentation to further clarify the usage of the makefile C variable by coccicheck. Signed-off-by: Sumera Priyadarsini <[email protected]> Acked-by: Julia Lawall <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2020-08-11Core-api: Documentation: Replace deprecated :c:func: UsagePuranjay Mohan1-16/+16
Replace :c:func: with func() as the previous usage is deprecated. Signed-off-by: Puranjay Mohan <[email protected]> Reviewed-by: Matthew Wilcox (Oracle) <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2020-08-11Dev-tools: Documentation: Replace deprecated :c:func: UsagePuranjay Mohan1-8/+8
Replace :c:func: with func() as the previous usage is deprecated. Signed-off-by: Puranjay Mohan <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2020-08-11Filesystems: Documentation: Replace deprecated :c:func: UsagePuranjay Mohan1-33/+33
Replace :c:func: with func() as the previous usage is deprecated. Signed-off-by: Puranjay Mohan <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2020-08-11docs: trace: fix a typoBryan Brattlof1-1/+1
emumerated -> enumerated Signed-off-by: Bryan Brattlof <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2020-08-11s390/numa: move code to arch/s390/kernelAlexander Gordeev4-3/+1
Move all code from arch/s390/numa/ to arch/s390/kernel/ since numa.c is the only source file and all others were deleted with the fake NUMA support removal. Signed-off-by: Alexander Gordeev <[email protected]> Signed-off-by: Heiko Carstens <[email protected]>
2020-08-11s390/time: remove select CLOCKSOURCE_VALIDATE_LAST_CYCLE againHeiko Carstens1-1/+0
Sven Schnelle reported that setting CLOCKSOURCE_VALIDATE_LAST_CYCLE doesn't make sense: even if our tod clock overflows delta calculation (now - last) with unsigned 64 bit values will still be correct. Therefore revert commit 555701a714f7 ("s390/time: select CLOCKSOURCE_VALIDATE_LAST_CYCLE"). Fixes: 555701a714f7 ("s390/time: select CLOCKSOURCE_VALIDATE_LAST_CYCLE") Reported-by: Sven Schnelle <[email protected]> Signed-off-by: Heiko Carstens <[email protected]>
2020-08-11s390/debug: debug feature version 3Mikhail Zaslonko2-25/+24
Change __debug_entry structure in the following way: - remove redundant union - Field containing cpuid is expanded to 16 bits. 8-bit width was not enough since we already support up to 512 cpus. - Field containing the timestamp is expanded to 60 bits. The timestamp itself is now stored in the absolute Unix time format in microseconds taking the Epoch Index into acount. Adjust default header for debug entries by setting minimum width for cpuid to 4 digits. Reviewed-by: Heiko Carstens <[email protected]> Signed-off-by: Mikhail Zaslonko <[email protected]> Signed-off-by: Heiko Carstens <[email protected]>
2020-08-11s390/Kconfig: add missing ZCRYPT dependency to VFIO_APKrzysztof Kozlowski1-0/+1
The VFIO_AP uses ap_driver_register() (and deregister) functions implemented in ap_bus.c (compiled into ap.o). However the ap.o will be built only if CONFIG_ZCRYPT is selected. This was not visible before commit e93a1695d7fb ("iommu: Enable compile testing for some of drivers") because the CONFIG_VFIO_AP depends on CONFIG_S390_AP_IOMMU which depends on the missing CONFIG_ZCRYPT. After adding COMPILE_TEST, it is possible to select a configuration with VFIO_AP and S390_AP_IOMMU but without the ZCRYPT. Add proper dependency to the VFIO_AP to fix build errors: ERROR: modpost: "ap_driver_register" [drivers/s390/crypto/vfio_ap.ko] undefined! ERROR: modpost: "ap_driver_unregister" [drivers/s390/crypto/vfio_ap.ko] undefined! Reported-by: kernel test robot <[email protected]> Fixes: e93a1695d7fb ("iommu: Enable compile testing for some of drivers") Signed-off-by: Krzysztof Kozlowski <[email protected]> Signed-off-by: Heiko Carstens <[email protected]>
2020-08-11s390/numa: set node distance to LOCAL_DISTANCEAlexander Gordeev1-6/+0
The node distance is hardcoded to 0, which causes a trouble for some user-level applications. In particular, "libnuma" expects the distance of a node to itself as LOCAL_DISTANCE. This update removes the offending node distance override. Cc: <[email protected]> # 4.4 Fixes: 3a368f742da1 ("s390/numa: add core infrastructure") Signed-off-by: Alexander Gordeev <[email protected]> Signed-off-by: Heiko Carstens <[email protected]>
2020-08-11s390/pkey: remove redundant variable initializationTianjia Zhang1-2/+2
In the first place, the initialization value of `rc` is wrong. It is unnecessary to initialize `rc` variables, so remove their initialization operation. Fixes: f2bbc96e7cfad ("s390/pkey: add CCA AES cipher key support") Signed-off-by: Tianjia Zhang <[email protected]> Signed-off-by: Harald Freudenberger <[email protected]> Signed-off-by: Heiko Carstens <[email protected]>
2020-08-11s390/test_unwind: fix possible memleak in test_unwind()Wang Hai1-0/+1
test_unwind() misses to call kfree(bt) in an error path. Add the missed function call to fix it. Fixes: 0610154650f1 ("s390/test_unwind: print verbose unwinding results") Reported-by: Hulk Robot <[email protected]> Signed-off-by: Wang Hai <[email protected]> Acked-by: Ilya Leoshkevich <[email protected]> Signed-off-by: Heiko Carstens <[email protected]>
2020-08-11s390/gmap: improve THP splittingGerald Schaefer1-7/+20
During s390_enable_sie(), we need to take care of splitting all qemu user process THP mappings. This is currently done with follow_page(FOLL_SPLIT), by simply iterating over all vma ranges, with PAGE_SIZE increment. This logic is sub-optimal and can result in a lot of unnecessary overhead, especially when using qemu and ASAN with large shadow map. Ilya reported significant system slow-down with one CPU busy for a long time and overall unresponsiveness. Fix this by using walk_page_vma() and directly calling split_huge_pmd() only for present pmds, which greatly reduces overhead. Cc: <[email protected]> # v5.4+ Reported-by: Ilya Leoshkevich <[email protected]> Tested-by: Ilya Leoshkevich <[email protected]> Acked-by: Christian Borntraeger <[email protected]> Signed-off-by: Gerald Schaefer <[email protected]> Signed-off-by: Heiko Carstens <[email protected]>
2020-08-11s390/atomic: circumvent gcc 10 build regressionVasily Gorbik1-2/+10
Circumvent the following gcc 10 allyesconfig build regression: CC drivers/leds/trigger/ledtrig-cpu.o In file included from ./arch/s390/include/asm/bitops.h:39, from ./include/linux/bitops.h:29, from ./include/linux/kernel.h:12, from drivers/leds/trigger/ledtrig-cpu.c:18: ./arch/s390/include/asm/atomic_ops.h: In function 'ledtrig_cpu': ./arch/s390/include/asm/atomic_ops.h:46:2: warning: 'asm' operand 1 probably does not match constraints 46 | asm volatile( \ | ^~~ ./arch/s390/include/asm/atomic_ops.h:53:2: note: in expansion of macro '__ATOMIC_CONST_OP' 53 | __ATOMIC_CONST_OP(op_name, op_type, op_string, "\n") \ | ^~~~~~~~~~~~~~~~~ ./arch/s390/include/asm/atomic_ops.h:56:1: note: in expansion of macro '__ATOMIC_CONST_OPS' 56 | __ATOMIC_CONST_OPS(__atomic_add_const, int, "asi") | ^~~~~~~~~~~~~~~~~~ ./arch/s390/include/asm/atomic_ops.h:46:2: error: impossible constraint in 'asm' 46 | asm volatile( \ | ^~~ ./arch/s390/include/asm/atomic_ops.h:53:2: note: in expansion of macro '__ATOMIC_CONST_OP' 53 | __ATOMIC_CONST_OP(op_name, op_type, op_string, "\n") \ | ^~~~~~~~~~~~~~~~~ ./arch/s390/include/asm/atomic_ops.h:56:1: note: in expansion of macro '__ATOMIC_CONST_OPS' 56 | __ATOMIC_CONST_OPS(__atomic_add_const, int, "asi") | ^~~~~~~~~~~~~~~~~~ scripts/Makefile.build:280: recipe for target 'drivers/leds/trigger/ledtrig-cpu.o' failed By swapping conditions as proposed here: https://gcc.gnu.org/pipermail/gcc-patches/2020-July/549318.html Suggested-by: Ilya Leoshkevich <[email protected]> Signed-off-by: Vasily Gorbik <[email protected]> Signed-off-by: Heiko Carstens <[email protected]>
2020-08-11parisc: Whitespace cleanups in atomic.hHelge Deller1-4/+4
Fix whitespace indenting and drop trailing backslashes. Cc: <[email protected]> # 4.19+ Signed-off-by: Helge Deller <[email protected]>
2020-08-11cpufreq: intel_pstate: Implement passive mode with HWP enabledRafael J. Wysocki4-113/+229
Allow intel_pstate to work in the passive mode with HWP enabled and make it set the HWP minimum performance limit (HWP floor) to the P-state value given by the target frequency supplied by the cpufreq governor, so as to prevent the HWP algorithm and the CPU scheduler from working against each other, at least when the schedutil governor is in use, and update the intel_pstate documentation accordingly. Among other things, this allows utilization clamps to be taken into account, at least to a certain extent, when intel_pstate is in use and makes it more likely that sufficient capacity for deadline tasks will be provided. After this change, the resulting behavior of an HWP system with intel_pstate in the passive mode should be close to the behavior of the analogous non-HWP system with intel_pstate in the passive mode, except that the HWP algorithm is generally allowed to make the CPU run at a frequency above the floor P-state set by intel_pstate in the entire available range of P-states, while without HWP a CPU can run in a P-state above the requested one if the latter falls into the range of turbo P-states (referred to as the turbo range) or if the P-states of all CPUs in one package are coordinated with each other at the hardware level. [Note that in principle the HWP floor may not be taken into account by the processor if it falls into the turbo range, in which case the processor has a license to choose any P-state, either below or above the HWP floor, just like a non-HWP processor in the case when the target P-state falls into the turbo range.] With this change applied, intel_pstate in the passive mode assumes complete control over the HWP request MSR and concurrent changes of that MSR (eg. via the direct MSR access interface) are overridden by it. Signed-off-by: Rafael J. Wysocki <[email protected]> Acked-by: Srinivas Pandruvada <[email protected]> Reviewed-by: Francisco Jerez <[email protected]>
2020-08-11io_uring: hold 'ctx' reference around task_work queue + executeJens Axboe1-0/+15
We're holding the request reference, but we need to go one higher to ensure that the ctx remains valid after the request has finished. If the ring is closed with pending task_work inflight, and the given io_kiocb finishes sync during issue, then we need a reference to the ring itself around the task_work execution cycle. Cc: [email protected] # v5.7+ Reported-by: [email protected] Signed-off-by: Jens Axboe <[email protected]>
2020-08-11fs: RWF_NOWAIT should imply IOCB_NOIOJens Axboe1-1/+1
With the change allowing read-ahead for IOCB_NOWAIT, we changed the RWF_NOWAIT semantics of only doing cached reads. Since we know have IOCB_NOIO to manage that specific side of it, just make RWF_NOWAIT imply IOCB_NOIO as well to restore the previous behavior. Fixes: 2e85abf053b9 ("mm: allow read-ahead with IOCB_NOWAIT set") Reported-by: Dave Chinner <[email protected]> Reviewed-by: Dave Chinner <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2020-08-11loop: unset GENHD_FL_NO_PART_SCAN on LOOP_CONFIGURELennart Poettering1-0/+2
When LOOP_CONFIGURE is used with LO_FLAGS_PARTSCAN we need to propagate this into the GENHD_FL_NO_PART_SCAN. LOOP_SETSTATUS does this, LOOP_CONFIGURE doesn't so far. Effect is that setting up a loopback device with partition scanning doesn't actually work when LOOP_CONFIGURE is issued, though it works fine with LOOP_SETSTATUS. Let's correct that and propagate the flag in LOOP_CONFIGURE too. Fixes: 3448914e8cc5("loop: Add LOOP_CONFIGURE ioctl") Signed-off-by: Lennart Poettering <[email protected]> Acked-by: Martijn Coenen <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2020-08-11ALSA: hda - reverse the setting value in the micmute_led_setHui Wang1-4/+1
Before the micmute_led_set() is introduced, the function of alc_gpio_micmute_update() will set the gpio value with the !micmute_led.led_value, and the machines have the correct micmute led status. After the micmute_led_set() is introduced, it sets the gpio value with !!micmute_led.led_value, so the led status is not correct anymore, we need to set micmute_led_polarity = 1 to workaround it. Now we fix the micmute_led_set() and remove micmute_led_polarity = 1. Fixes: 87dc36482cab ("ALSA: hda/realtek - Add LED class support for micmute LED") Reported-and-suggested-by: Kai-Heng Feng <[email protected]> Cc: <[email protected]> Signed-off-by: Hui Wang <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Takashi Iwai <[email protected]>
2020-08-11ALSA: echoaduio: Drop superfluous volatile modifierTakashi Iwai2-3/+2
The dsp_registers field of struct echoaduio has the volatile modifier, but it's basically superfluous; the field is accessed only for the base pointer of readl() and writel(), hence marking with __iomem alone should suffice. OTOH, having the volatile prefix causes a compile warning like: sound/pci/echoaudio/echoaudio.c:1878:14: warning: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Wdiscarded-qualifiers] So it's better to drop this superfluous modifier. Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Takashi Iwai <[email protected]>
2020-08-11KVM: MIPS/VZ: Fix build error caused by 'kvm_run' cleanupXingxing Su1-2/+1
Commit c34b26b98caca48ec9ee9 ("KVM: MIPS: clean up redundant 'kvm_run' parameters") remove the 'kvm_run' parameter in kvm_vz_gpsi_lwc2. The following build error: arch/mips/kvm/vz.c: In function 'kvm_trap_vz_handle_gpsi': arch/mips/kvm/vz.c:1243:43: error: 'run' undeclared (first use in this function) er = kvm_vz_gpsi_lwc2(inst, opc, cause, run, vcpu); ^~~ arch/mips/kvm/vz.c:1243:43: note: each undeclared identifier is reported only once for each function it appears in scripts/Makefile.build:283: recipe for target 'arch/mips/kvm/vz.o' failed make[2]: *** [arch/mips/kvm/vz.o] Error 1 scripts/Makefile.build:500: recipe for target 'arch/mips/kvm' failed make[1]: *** [arch/mips/kvm] Error 2 Makefile:1785: recipe for target 'arch/mips' failed make: *** [arch/mips] Error 2 Signed-off-by: Xingxing Su <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-08-11x86/hyperv: Make hv_setup_sched_clock inlineMichael Kelley3-8/+12
Make hv_setup_sched_clock inline so the reference to pv_ops works correctly with objtool updates to detect noinstr violations. See https://lore.kernel.org/patchwork/patch/1283635/ Signed-off-by: Michael Kelley <[email protected]> Acked-by: Peter Zijlstra (Intel) <[email protected]> Acked-by: Thomas Gleixner <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Wei Liu <[email protected]>
2020-08-11btrfs: fix return value mixup in btrfs_get_extentPavel Machek1-1/+1
btrfs_get_extent() sets variable ret, but out: error path expect error to be in variable err so the error code is lost. Fixes: 6bf9e4bd6a27 ("btrfs: inode: Verify inode mode to avoid NULL pointer dereference") CC: [email protected] # 5.4+ Reviewed-by: Nikolay Borisov <[email protected]> Signed-off-by: Pavel Machek (CIP) <[email protected]> Reviewed-by: David Sterba <[email protected]> Signed-off-by: David Sterba <[email protected]>
2020-08-11parisc/kernel/ftrace: Remove function callback castsOscar Carter1-1/+2
In an effort to enable -Wcast-function-type in the top-level Makefile to support Control Flow Integrity builds, remove all the function callback casts. Co-developed-by: Helge Deller <[email protected]> Signed-off-by: Oscar Carter <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2020-08-11sections.h: dereference_function_descriptor() returns void pointerHelge Deller1-2/+2
The function dereference_function_descriptor() takes on hppa64, ppc64 and ia64 a pointer to a function descriptor and returns a (void) pointer to the dereferenced function. To make cross-arch coding easier, on all other architectures the dereference_function_descriptor() macro should return a void pointer too. Signed-off-by: Helge Deller <[email protected]>
2020-08-11zonefs: update documentation to reflect zone size vs capacityJohannes Thumshirn1-10/+12
Update the zonefs documentation to reflect the difference between a zone's size and it's capacity. The maximum file size in zonefs is the zones capacity, for ZBC and ZAC based devices, which do not have a separate zone capacity, the zone capacity is equal to the zone size. Signed-off-by: Johannes Thumshirn <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Signed-off-by: Damien Le Moal <[email protected]>
2020-08-11zonefs: add zone-capacity supportJohannes Thumshirn2-4/+15
In the zoned storage model, the sectors within a zone are typically all writeable. With the introduction of the Zoned Namespace (ZNS) Command Set in the NVM Express organization, the model was extended to have a specific writeable capacity. This zone capacity can be less than the overall zone size for a NVMe ZNS device or null_blk in zoned-mode. For other ZBC/ZAC devices the zone capacity is always equal to the zone size. Use the zone capacity field instead from blk_zone for determining the maximum inode size and inode blocks in zonefs. Signed-off-by: Johannes Thumshirn <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Signed-off-by: Damien Le Moal <[email protected]>
2020-08-11x86/xen: drop tests for highmem in pv codeJuergen Gross2-95/+57
With support for 32-bit pv guests gone pure pv-code no longer needs to test for highmem. Dropping those tests removes the need for flushing in some places. Signed-off-by: Juergen Gross <[email protected]> Reviewed-by: Boris Ostrovsky <[email protected]> Signed-off-by: Juergen Gross <[email protected]>
2020-08-11x86/xen: eliminate xen-asm_64.SJuergen Gross3-195/+180
With 32-bit pv-guest support removed xen-asm_64.S can be merged with xen-asm.S Signed-off-by: Juergen Gross <[email protected]> Reviewed-by: Boris Ostrovsky <[email protected]> Signed-off-by: Juergen Gross <[email protected]>