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2020-03-30Merge tag 'docs-5.7' of git://git.lwn.net/linuxLinus Torvalds
Pull documentation updates from Jonathan Corbet: "This has been a busy cycle for documentation work. Highlights include: - Lots of RST conversion work by Mauro, Daniel ALmeida, and others. Maybe someday we'll get to the end of this stuff...maybe... - Some organizational work to bring some order to the core-api manual. - Various new docs and additions to the existing documentation. - Typo fixes, warning fixes, ..." * tag 'docs-5.7' of git://git.lwn.net/linux: (123 commits) Documentation: x86: exception-tables: document CONFIG_BUILDTIME_TABLE_SORT MAINTAINERS: adjust to filesystem doc ReST conversion docs: deprecated.rst: Add BUG()-family doc: zh_CN: add translation for virtiofs doc: zh_CN: index files in filesystems subdirectory docs: locking: Drop :c:func: throughout docs: locking: Add 'need' to hardirq section docs: conf.py: avoid thousands of duplicate label warning on Sphinx docs: prevent warnings due to autosectionlabel docs: fix reference to core-api/namespaces.rst docs: fix pointers to io-mapping.rst and io_ordering.rst files Documentation: Better document the softlockup_panic sysctl docs: hw-vuln: tsx_async_abort.rst: get rid of an unused ref docs: perf: imx-ddr.rst: get rid of a warning docs: filesystems: fuse.rst: supress a Sphinx warning docs: translations: it: avoid duplicate refs at programming-language.rst docs: driver.rst: supress two ReSt warnings docs: trace: events.rst: convert some new stuff to ReST format Documentation: Add io_ordering.rst to driver-api manual Documentation: Add io-mapping.rst to driver-api manual ...
2020-03-30Merge tag 'for-5.7/block-2020-03-29' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block updates from Jens Axboe: - Online capacity resizing (Balbir) - Number of hardware queue change fixes (Bart) - null_blk fault injection addition (Bart) - Cleanup of queue allocation, unifying the node/no-node API (Christoph) - Cleanup of genhd, moving code to where it makes sense (Christoph) - Cleanup of the partition handling code (Christoph) - disk stat fixes/improvements (Konstantin) - BFQ improvements (Paolo) - Various fixes and improvements * tag 'for-5.7/block-2020-03-29' of git://git.kernel.dk/linux-block: (72 commits) block: return NULL in blk_alloc_queue() on error block: move bio_map_* to blk-map.c Revert "blkdev: check for valid request queue before issuing flush" block: simplify queue allocation bcache: pass the make_request methods to blk_queue_make_request null_blk: use blk_mq_init_queue_data block: add a blk_mq_init_queue_data helper block: move the ->devnode callback to struct block_device_operations block: move the part_stat* helpers from genhd.h to a new header block: move block layer internals out of include/linux/genhd.h block: move guard_bio_eod to bio.c block: unexport get_gendisk block: unexport disk_map_sector_rcu block: unexport disk_get_part block: mark part_in_flight and part_in_flight_rw static block: mark block_depr static block: factor out requeue handling from dispatch code block/diskstats: replace time_in_queue with sum of request times block/diskstats: accumulate all per-cpu counters in one pass block/diskstats: more accurate approximation of io_ticks for slow disks ...
2020-03-27Merge tag 'arm-soc-fixes-5.6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM DT and driver fixes from Arnd Bergmann: "For the devicetree files, there are a total of 20 patches, almost entirely for 32-bit machines: - The Allwinner/sun9i r40 SoC dtsi file contains a number of issues, both for correctness and for style that are addressed in separate patches. This causes most of the changed lines of the DT updates this time. - More Allwinner updates fixing the identification of the security system on sun8i/A33, a recent regression of the A83t ethernet, and a few board specific issues on the TBS-A711 macine. - Several bug fixes for OMAP dts files, most notably fixing the timings for the NAND flash on the Nokia N900 that regressed a while ago after the move to configuring them from DT. Some other OMAPs now set the correct dma limits on the L3 bus, and a regression fix addresses lost Ethernet on dm814x - One incorrect setting in the newly added Raspberry Pi Zero W that may cause issues with the SD card controller. - A missing property on the bcm2835 firmware node caused incorrect DMA settings. - An old bug on the oxnas platform causing spurious interrupts is finally addressed. - A regression on the Exynos Midas board broke the OLED panel power supply. - The i.MX6 phycore SoM specified the wrong voltage for the SoC, this is now set to the values from the datasheet. - Some 64-bit machines use a deprecated string to identify the PSCI firmware. There are also several small code fixes addressing mostly serious issues: - Fix the sunxi rsb bus access to no longer return incorrect data when mixing 8 and 16 bit I/O. - Fix a suspend/resume regression on the OMAP2+ lcdc from a missing quirk in the ti-sysc driver - Fix a NULL pointer access from a race in the fsl dpio driver - Fix a v5.5 regression in the exynos-chipid driver that caused an invalid error code probing the device on non-exynos platforms - Fix an out-of-bounds access in the AMD TEE driver" * tag 'arm-soc-fixes-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (24 commits) soc: samsung: chipid: Fix return value on non-Exynos platforms arm64: dts: Fix leftover entry-methods for PSCI ARM: dts: exynos: Fix regulator node aliasing on Midas-based boards ARM: dts: oxnas: Fix clear-mask property ARM: dts: bcm283x: Fix vc4's firmware bus DMA limitations ARM: dts: omap5: Add bus_dma_limit for L3 bus ARM: dts: omap4-droid4: Fix lost touchscreen interrupts ARM: dts: dra7: Add bus_dma_limit for L3 bus ARM: bcm2835-rpi-zero-w: Add missing pinctrl name ARM: dts: sun8i: a33: add the new SS compatible dt-bindings: crypto: add new compatible for A33 SS ARM: dts: sun8i: r40: Move SPI device nodes based on address order ARM: dts: sun8i: r40: Fix register base address for SPI2 and SPI3 ARM: dts: sun8i: r40: Move AHCI device node based on address order ARM: dts: imx6: phycore-som: fix arm and soc minimum voltage soc: fsl: dpio: register dpio irq handlers after dpio create tee: amdtee: out of bounds read in find_session() ARM: dts: N900: fix onenand timings bus: ti-sysc: Fix quirk flags for lcdc on am335x ARM: dts: Fix dm814x Ethernet by changing to use rgmii-id mode ...
2020-03-27Documentation: x86: exception-tables: document CONFIG_BUILDTIME_TABLE_SORTNick Desaulniers
Provide more information about __ex_table sorting post link. The exception tables and fixup tables use a commonly recurring pattern in the kernel of storing the address of labels as date in custom ELF sections, then finding these sections, iterating elements within them, and possibly revisiting them or modifying the data at these addresses. Sorting readonly arrays to minimize runtime penalties is quite clever. Suggested-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Link: https://lore.kernel.org/r/20200327000951.84071-1-ndesaulniers@google.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-26Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input fixes from Dmitry Torokhov: - a fix to generate proper timestamps on key autorepeat events that were broken recently - a fix for Synaptics driver to only activate reduced reporting mode when explicitly requested - a new keycode for "selective screenshot" function - other assorted fixes * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: fix stale timestamp on key autorepeat events Input: move the new KEY_SELECTIVE_SCREENSHOT keycode Input: avoid BIT() macro usage in the serio.h UAPI header Input: synaptics-rmi4 - set reduced reporting mode only when requested Input: synaptics - enable RMI on HP Envy 13-ad105ng Input: allocate keycode for "Selective Screenshot" key Input: tm2-touchkey - add support for Coreriver TC360 variant dt-bindings: input: add Coreriver TC360 binding dt-bindings: vendor-prefixes: Add Coreriver vendor prefix Input: raydium_i2c_ts - fix error codes in raydium_i2c_boot_trigger()
2020-03-26Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull KVM fixes from Paolo Bonzini: "x86 bug fixes" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: X86: Narrow down the IPI fastpath to single target IPI KVM: LAPIC: Also cancel preemption timer when disarm LAPIC timer KVM: VMX: don't allow memory operands for inline asm that modifies SP KVM: LAPIC: Mark hrtimer for period or oneshot mode to expire in hard interrupt context KVM: SVM: Issue WBINVD after deactivating an SEV guest KVM: SVM: document KVM_MEM_ENCRYPT_OP, let userspace detect if SEV is available KVM: x86: remove bogus user-triggerable WARN_ON
2020-03-25Merge tag 'zonefs-5.6-rc7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs Pull zonefs fix from Damien Le Moal: "A single fix from me to correctly handle the size of read-only zone files" * tag 'zonefs-5.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs: zonfs: Fix handling of read-only zones
2020-03-25block/diskstats: more accurate approximation of io_ticks for slow disksKonstantin Khlebnikov
Currently io_ticks is approximated by adding one at each start and end of requests if jiffies counter has changed. This works perfectly for requests shorter than a jiffy or if one of requests starts/ends at each jiffy. If disk executes just one request at a time and they are longer than two jiffies then only first and last jiffies will be accounted. Fix is simple: at the end of request add up into io_ticks jiffies passed since last update rather than just one jiffy. Example: common HDD executes random read 4k requests around 12ms. fio --name=test --filename=/dev/sdb --rw=randread --direct=1 --runtime=30 & iostat -x 10 sdb Note changes of iostat's "%util" 8,43% -> 99,99% before/after patch: Before: Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util sdb 0,00 0,00 82,60 0,00 330,40 0,00 8,00 0,96 12,09 12,09 0,00 1,02 8,43 After: Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util sdb 0,00 0,00 82,50 0,00 330,00 0,00 8,00 1,00 12,10 12,10 0,00 12,12 99,99 Now io_ticks does not loose time between start and end of requests, but for queue-depth > 1 some I/O time between adjacent starts might be lost. For load estimation "%util" is not as useful as average queue length, but it clearly shows how often disk queue is completely empty. Fixes: 5b18b5a73760 ("block: delete part_round_stats and switch to less precise counting") Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Reviewed-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-25Merge tag 'sunxi-fixes-for-5.6-2' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/fixes Allwinner Fixes for 5.6 - part 2 This follows up on the previous 5.6 fixes tag with a fix for the A33 Security System (crypto offloading hardware). The hardware was found to not be compatible with existing hardware and a new compatible was needed. The driver change was picked up right before the previous -rc6 and the DT bindings and DT changes were not picked up. The goal is to have all the changes in the same release, that is v5.6. * tag 'sunxi-fixes-for-5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: ARM: dts: sun8i: a33: add the new SS compatible dt-bindings: crypto: add new compatible for A33 SS Link: https://lore.kernel.org/r/20200313060727.GA23962@wens.csie.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25zonfs: Fix handling of read-only zonesDamien Le Moal
The write pointer of zones in the read-only consition is defined as invalid by the SCSI ZBC and ATA ZAC specifications. It is thus not possible to determine the correct size of a read-only zone file on mount. Fix this by handling read-only zones in the same manner as offline zones by disabling all accesses to the zone (read and write) and initializing the inode size of the read-only zone to 0). For zones found to be in the read-only condition at runtime, only disable write access to the zone and keep the size of the zone file to its last updated value to allow the user to recover previously written data. Also fix zonefs documentation file to reflect this change. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
2020-03-24Merge tag 'dmaengine-fix-5.6' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds
Pull dmaengine fixes from Vinod Koul: "Late fixes in dmaengine for v5.6: - move .device_release missing log warning to debug - couple of maintainer entries for HiSilicon and IADX drivers - off-by-one fix for idxd driver - documentation warning fixes - TI k3 dma error handling fix" * tag 'dmaengine-fix-5.6' of git://git.infradead.org/users/vkoul/slave-dma: dmaengine: ti: k3-udma-glue: Fix an error handling path in 'k3_udma_glue_cfg_rx_flow()' MAINTAINERS: Add maintainer for HiSilicon DMA engine driver dmaengine: idxd: fix off by one on cdev dwq refcount MAINTAINERS: rectify the INTEL IADX DRIVER entry dmaengine: move .device_release missing log warning to debug level docs: dmaengine: provider.rst: get rid of some warnings
2020-03-24scsi: simplify scsi_partsizeChristoph Hellwig
Call scsi_bios_ptable from scsi_partsize instead of requiring boilerplate code in the callers. Also switch the calling convention to match that of the ->bios_param instances calling this function, and use true/false for the return value instead of the weird -1 convention. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-20docs: deprecated.rst: Add BUG()-familyKees Cook
Linus continues to remind[1] people to stop using the BUG()-family of functions. We should have this better documented (even if checkpatch.pl has been warning[2] since 2015), so add more details to deprecated.rst, as a distinct place to point people to for guidance. [1] https://lore.kernel.org/lkml/CAHk-=whDHsbK3HTOpTF=ue_o04onRwTEaK_ZoJp_fjbqq4+=Jw@mail.gmail.com/ [2] https://git.kernel.org/linus/9d3e3c705eb395528fd8f17208c87581b134da48 Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/202003141524.59C619B51A@keescook Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-20doc: zh_CN: add translation for virtiofsWang Wenhu
Translate virtiofs.rst in Documentation/filesystems/ into Chinese. Reviewed-by: Alex Shi <alex.shi@linux.alibaba.com> Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Wang Wenhu <wenhu.wang@vivo.com> Link: https://lore.kernel.org/r/20200316110143.97848-2-wenhu.wang@vivo.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-20doc: zh_CN: index files in filesystems subdirectoryWang Wenhu
Add filesystems subdirectory into the table of Contents for zh_CN, all translations residing on it would be indexed conveniently. Reviewed-by: Alex Shi <alex.shi@linux.alibaba.com> Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Wang Wenhu <wenhu.wang@vivo.com> Link: https://lore.kernel.org/r/20200316110143.97848-1-wenhu.wang@vivo.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-20docs: locking: Drop :c:func: throughoutStephen Boyd
The kernel doc tooling knows how to do this itself so drop this markup throughout this file to simplify. Suggested-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Stephen Boyd <swboyd@chromium.org> Link: https://lore.kernel.org/r/20200318174133.160206-3-swboyd@chromium.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-20docs: locking: Add 'need' to hardirq sectionStephen Boyd
Add the missing word to make this sentence read properly. Signed-off-by: Stephen Boyd <swboyd@chromium.org> Link: https://lore.kernel.org/r/20200318174133.160206-2-swboyd@chromium.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-20docs: conf.py: avoid thousands of duplicate label warning on SphinxMauro Carvalho Chehab
The autosectionlabel extension is nice, as it allows to refer to a section by its name without requiring any extra tag to create a reference name. However, on its default, it has two serious problems: 1) the namespace is global. So, two files with different "introduction" section would create a label with the same name. This is easily solvable by forcing the extension to prepend the file name with: autosectionlabel_prefix_document = True 2) It doesn't work hierarchically. So, if there are two level 1 sessions (let's say, one labeled "open" and another one "ioctl") and both have a level 2 "synopsis" label, both section 2 will have the same identical name. Currently, there's no way to tell Sphinx to create an hierarchical reference like: open / synopsis ioctl / synopsis This causes around 800 warnings. So, the fix should be to not let autosectionlabel to produce references for anything that it is not at a chapter level within any doc, with: autosectionlabel_maxdepth = 2 Fixes: 58ad30cf91f0 ("docs: fix reference to core-api/namespaces.rst") Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/74f4d8d91c648d7101c45b4b99cc93532f4dadc6.1584716446.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-20docs: prevent warnings due to autosectionlabelMauro Carvalho Chehab
Changeset 58ad30cf91f0 ("docs: fix reference to core-api/namespaces.rst") enabled a new feature at Sphinx: it will now generate index for each document title, plus to each chapter inside it. There's a drawback, though: one document cannot have two sections with the same name anymore. A followup patch will change the logic of autosectionlabel to avoid most creating references for every single section title, but still we need to be able to reference the chapters inside a document. There are a few places where there are two chapters with the same name. This patch renames one of the chapters, in order to avoid symbol conflict within the same document. PS.: as I don't speach Chinese, I had some help from a friend (Wen Liu) at the Chinese translation for "publishing patches" for this document: Documentation/translations/zh_CN/process/5.Posting.rst Fixes: 58ad30cf91f0 ("docs: fix reference to core-api/namespaces.rst") Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/2bffb91e4a63d41bf5fae1c23e1e8b3bba0b8806.1584716446.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-20KVM: SVM: document KVM_MEM_ENCRYPT_OP, let userspace detect if SEV is availablePaolo Bonzini
Userspace has no way to query if SEV has been disabled with the sev module parameter of kvm-amd.ko. Actually it has one, but it is a hack: do ioctl(KVM_MEM_ENCRYPT_OP, NULL) and check if it returns EFAULT. Make it a little nicer by returning zero for SEV enabled and NULL argument, and while at it document the ioctl arguments. Cc: Brijesh Singh <brijesh.singh@amd.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-03-19docs: fix reference to core-api/namespaces.rstJonathan Corbet
Fix a couple of dangling links to core-api/namespaces.rst by turning them into proper references. Enable the autosection extension (available since Sphinx 1.4) to make this work. Co-developed-by: Federico Vaga <federico.vaga@vaga.pv.it> Fixes: fcfacb9f8374 ("doc: move namespaces.rst from kbuild/ to core-api/") Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-19Merge tag 'kbuild-fixes-v5.6-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: - fix __uint128_t capability test in Kconfig when GCC that defaults to 32-bit is used to build the 64-bit kernel - suppress new noisy Clang warnings -Wpointer-to-enum-cast - move the namespace field in Module.symvers for the backward compatibility reason for the depmod tool - use available compression for initramdisk when INTRAMFS_SOURCE is defined, which was the original behavior - fix modpost to handle correct large section numbers when it refers to modversion CRCs and module namespaces - fix comments and documents * tag 'kbuild-fixes-v5.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: scripts/kallsyms: fix wrong kallsyms_relative_base modpost: Get proper section index by get_secindex() instead of st_shndx initramfs: restore default compression behavior modpost: move the namespace field in Module.symvers last kbuild: Disable -Wpointer-to-enum-cast kbuild: doc: fix references to other documents int128: fix __uint128_t compiler test in Kconfig kconfig: introduce m32-flag and m64-flag kbuild: Fix inconsistent comment
2020-03-17modpost: move the namespace field in Module.symvers lastJessica Yu
In order to preserve backwards compatability with kmod tools, we have to move the namespace field in Module.symvers last, as the depmod -e -E option looks at the first three fields in Module.symvers to check symbol versions (and it's expected they stay in the original order of crc, symbol, module). In addition, update an ancient comment above read_dump() in modpost that suggested that the export type field in Module.symvers was optional. I suspect that there were historical reasons behind that comment that are no longer accurate. We have been unconditionally printing the export type since 2.6.18 (commit bd5cbcedf44), which is over a decade ago now. Fix up read_dump() to treat each field as non-optional. I suspect the original read_dump() code treated the export field as optional in order to support pre <= 2.6.18 Module.symvers (which did not have the export type field). Note that although symbol namespaces are optional, the field will not be omitted from Module.symvers if a symbol does not have a namespace. In this case, the field will simply be empty and the next delimiter or end of line will follow. Cc: stable@vger.kernel.org Fixes: cb9b55d21fe0 ("modpost: add support for symbol namespaces") Tested-by: Matthias Maennich <maennich@google.com> Reviewed-by: Matthias Maennich <maennich@google.com> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by: Jessica Yu <jeyu@kernel.org> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-03-15Merge tag 'irq-urgent-2020-03-15' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fix from Thomas Gleixner: "A single commit to handle an erratum in Cavium ThunderX to prevent access to GIC registers which are broken in the implementation" * tag 'irq-urgent-2020-03-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/gic-v3: Workaround Cavium erratum 38539 when reading GICD_TYPER2
2020-03-15Merge tag 'irqchip-fixes-5.6-2' of ↵Thomas Gleixner
git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent Pull irqchip fixes from Marc Zyngier: - Add workaround for Cavium/Marvell ThunderX unimplemented GIC registers
2020-03-14irqchip/gic-v3: Workaround Cavium erratum 38539 when reading GICD_TYPER2Marc Zyngier
Despite the architecture spec requiring that reserved registers in the GIC distributor memory map are RES0 (and thus are not allowed to generate an exception), the Cavium ThunderX (aka TX1) SoC explodes as such: [ 0.000000] GICv3: GIC: Using split EOI/Deactivate mode [ 0.000000] GICv3: 128 SPIs implemented [ 0.000000] GICv3: 0 Extended SPIs implemented [ 0.000000] Internal error: synchronous external abort: 96000210 [#1] SMP [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.0-rc4-00035-g3cf6a3d5725f #7956 [ 0.000000] Hardware name: cavium,thunder-88xx (DT) [ 0.000000] pstate: 60000085 (nZCv daIf -PAN -UAO) [ 0.000000] pc : __raw_readl+0x0/0x8 [ 0.000000] lr : gic_init_bases+0x110/0x560 [ 0.000000] sp : ffff800011243d90 [ 0.000000] x29: ffff800011243d90 x28: 0000000000000000 [ 0.000000] x27: 0000000000000018 x26: 0000000000000002 [ 0.000000] x25: ffff8000116f0000 x24: ffff000fbe6a2c80 [ 0.000000] x23: 0000000000000000 x22: ffff010fdc322b68 [ 0.000000] x21: ffff800010a7a208 x20: 00000000009b0404 [ 0.000000] x19: ffff80001124dad0 x18: 0000000000000010 [ 0.000000] x17: 000000004d8d492b x16: 00000000f67eb9af [ 0.000000] x15: ffffffffffffffff x14: ffff800011249908 [ 0.000000] x13: ffff800091243ae7 x12: ffff800011243af4 [ 0.000000] x11: ffff80001126e000 x10: ffff800011243a70 [ 0.000000] x9 : 00000000ffffffd0 x8 : ffff80001069c828 [ 0.000000] x7 : 0000000000000059 x6 : ffff8000113fb4d1 [ 0.000000] x5 : 0000000000000001 x4 : 0000000000000000 [ 0.000000] x3 : 0000000000000000 x2 : 0000000000000000 [ 0.000000] x1 : 0000000000000000 x0 : ffff8000116f000c [ 0.000000] Call trace: [ 0.000000] __raw_readl+0x0/0x8 [ 0.000000] gic_of_init+0x188/0x224 [ 0.000000] of_irq_init+0x200/0x3cc [ 0.000000] irqchip_init+0x1c/0x40 [ 0.000000] init_IRQ+0x160/0x1d0 [ 0.000000] start_kernel+0x2ec/0x4b8 [ 0.000000] Code: a8c47bfd d65f03c0 d538d080 d65f03c0 (b9400000) when reading the GICv4.1 GICD_TYPER2 register, which is unexpected... Work around it by adding a new quirk for the following variants: ThunderX: CN88xx OCTEON TX: CN83xx, CN81xx OCTEON TX2: CN93xx, CN96xx, CN98xx, CNF95xx* and use this flag to avoid accessing GICD_TYPER2. Note that all reserved registers (including redistributors and ITS) are impacted by this erratum, but that only GICD_TYPER2 has to be worked around so far. Signed-off-by: Marc Zyngier <maz@kernel.org> Tested-by: Robert Richter <rrichter@marvell.com> Tested-by: Mark Salter <msalter@redhat.com> Tested-by: Tim Harvey <tharvey@gateworks.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Robert Richter <rrichter@marvell.com> Link: https://lore.kernel.org/r/20191027144234.8395-11-maz@kernel.org Link: https://lore.kernel.org/r/20200311115649.26060-1-maz@kernel.org
2020-03-13kbuild: doc: fix references to other documentsMasahiro Yamada
All the files in Documentation/kbuild/ were converted to reST. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-03-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds
Pull networking fixes from David Miller: "It looks like a decent sized set of fixes, but a lot of these are one liner off-by-one and similar type changes: 1) Fix netlink header pointer to calcular bad attribute offset reported to user. From Pablo Neira Ayuso. 2) Don't double clear PHY interrupts when ->did_interrupt is set, from Heiner Kallweit. 3) Add missing validation of various (devlink, nl802154, fib, etc.) attributes, from Jakub Kicinski. 4) Missing *pos increments in various netfilter seq_next ops, from Vasily Averin. 5) Missing break in of_mdiobus_register() loop, from Dajun Jin. 6) Don't double bump tx_dropped in veth driver, from Jiang Lidong. 7) Work around FMAN erratum A050385, from Madalin Bucur. 8) Make sure ARP header is pulled early enough in bonding driver, from Eric Dumazet. 9) Do a cond_resched() during multicast processing of ipvlan and macvlan, from Mahesh Bandewar. 10) Don't attach cgroups to unrelated sockets when in interrupt context, from Shakeel Butt. 11) Fix tpacket ring state management when encountering unknown GSO types. From Willem de Bruijn. 12) Fix MDIO bus PHY resume by checking mdio_bus_phy_may_suspend() only in the suspend context. From Heiner Kallweit" * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (112 commits) net: systemport: fix index check to avoid an array out of bounds access tc-testing: add ETS scheduler to tdc build configuration net: phy: fix MDIO bus PM PHY resuming net: hns3: clear port base VLAN when unload PF net: hns3: fix RMW issue for VLAN filter switch net: hns3: fix VF VLAN table entries inconsistent issue net: hns3: fix "tc qdisc del" failed issue taprio: Fix sending packets without dequeueing them net: mvmdio: avoid error message for optional IRQ net: dsa: mv88e6xxx: Add missing mask of ATU occupancy register net: memcg: fix lockdep splat in inet_csk_accept() s390/qeth: implement smarter resizing of the RX buffer pool s390/qeth: refactor buffer pool code s390/qeth: use page pointers to manage RX buffer pool seg6: fix SRv6 L2 tunnels to use IANA-assigned protocol number net: dsa: Don't instantiate phylink for CPU/DSA ports unless needed net/packet: tpacket_rcv: do not increment ring index on drop sxgbe: Fix off by one in samsung driver strncpy size arg net: caif: Add lockdep expression to RCU traversal primitive MAINTAINERS: remove Sathya Perla as Emulex NIC maintainer ...
2020-03-12Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds
Pull vfs fixes from Al Viro: "A couple of fixes for old crap in ->atomic_open() instances" * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: cifs_atomic_open(): fix double-put on late allocation failure gfs2_atomic_open(): fix O_EXCL|O_CREAT handling on cold dcache
2020-03-12cifs_atomic_open(): fix double-put on late allocation failureAl Viro
several iterations of ->atomic_open() calling conventions ago, we used to need fput() if ->atomic_open() failed at some point after successful finish_open(). Now (since 2016) it's not needed - struct file carries enough state to make fput() work regardless of the point in struct file lifecycle and discarding it on failure exits in open() got unified. Unfortunately, I'd missed the fact that we had an instance of ->atomic_open() (cifs one) that used to need that fput(), as well as the stale comment in finish_open() demanding such late failure handling. Trivially fixed... Fixes: fe9ec8291fca "do_last(): take fput() on error after opening to out:" Cc: stable@kernel.org # v4.7+ Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-03-12block: Document genhd capability flagsStephen Kitt
The kernel documentation includes a brief section about genhd capabilities, but it turns out that the only documented capability (GENHD_FL_MEDIA_CHANGE_NOTIFY) isn't used any more. This patch removes that flag, and documents the rest, based on my understanding of the current uses of these flags in the kernel. The documentation is kept in the header file, alongside the declarations, in the hope that it will be kept up-to-date in future; the kernel documentation is changed to include the documentation generated from the header file. Because the ultimate goal is to provide some end-user documentation (or end-administrator documentation), the comments are perhaps more user-oriented than might be expected. Since the values are shown to users in hexadecimal, the documentation lists them in hexadecimal, and the constant declarations are adjusted to match. Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Stephen Kitt <steve@sk2.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-11docs: fix pointers to io-mapping.rst and io_ordering.rst filesMauro Carvalho Chehab
Those files got moved, but cross-references still point to the wrong places. Fixes: fcd680727157 ("Documentation: Add io-mapping.rst to driver-api manual") Fixes: d1ce350015d8 ("Documentation: Add io_ordering.rst to driver-api manual") Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Reviewed-by: Alex Shi <alex.shi@linux.alibaba.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/c0205119db4fef536272cb0a183b6c14c2c8bf4c.1583927470.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-11dt-bindings: crypto: add new compatible for A33 SSCorentin Labbe
The A33 SS has a difference with all other SS, it give SHA1 digest directly in BE. This difference need to be handlded by the driver and so need a new compatible. Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Chen-Yu Tsai <wens@csie.org>
2020-03-10Documentation: Better document the softlockup_panic sysctlGuilherme G. Piccoli
Commit 9c44bc03fff4 ("softlockup: allow panic on lockup") added the softlockup_panic sysctl, but didn't add information about it to the file Documentation/admin-guide/sysctl/kernel.rst (which in that time certainly wasn't rst and had other name!). This patch just adds the respective documentation and references it from the corresponding entry in Documentation/admin-guide/kernel-parameters.txt. This patch was strongly based on Scott Wood's commit d22881dc13b6 ("Documentation: Better document the hardlockup_panic sysctl"). Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Guilherme G. Piccoli <gpiccoli@canonical.com> Link: https://lore.kernel.org/r/20200310183649.23163-1-gpiccoli@canonical.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-10docs: hw-vuln: tsx_async_abort.rst: get rid of an unused refMauro Carvalho Chehab
The virt_mechanism reference there points to a section called elsewhere (Virtualization mitigation). Also, it is not used anywere. Besides that, it conflicts with a label with the same name inside: Documentation/admin-guide/hw-vuln/mds.rst Perhaps added due to some cut-and-paste? Anyway, as this is not used, let's just get rid of it. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/681c8e2916bf4943ac2277f181668bfbc5fdbc01.1583250595.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-10docs: perf: imx-ddr.rst: get rid of a warningMauro Carvalho Chehab
Documentation/admin-guide/perf/imx-ddr.rst:47: WARNING: Unexpected indentation. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/b27b54bd4f847032fd33313d6497ff320c0f3d78.1583250595.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-10docs: filesystems: fuse.rst: supress a Sphinx warningMauro Carvalho Chehab
Get rid of this warning: Documentation/filesystems/fuse.rst:2: WARNING: Explicit markup ends without a blank line; unexpected unindent. Fixes: 8ab13bca428b ("Documentation: filesystems: convert fuse to RST") Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/cad541ec7d8d220d57bd5d097d60c62da64054ac.1583250595.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-10docs: translations: it: avoid duplicate refs at programming-language.rstMauro Carvalho Chehab
As the translations document is part of the main body, we can't keep duplicated references there. So, prefix the Italian ones with "it-". Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/e733111f3599dff96524ad09ace5204ac6bb496b.1583250595.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-10docs: driver.rst: supress two ReSt warningsMauro Carvalho Chehab
Get rid of those, by marking a literal block as such: Documentation/driver-api/gpio/driver.rst:425: WARNING: Unexpected indentation. Documentation/driver-api/gpio/driver.rst:423: WARNING: Inline emphasis start-string without end-string. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/8356b02547087979f57cb71fbefb5e5f636c78f4.1583250595.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-10docs: trace: events.rst: convert some new stuff to ReST formatMauro Carvalho Chehab
Some new chapters were added to the documentation. This caused Sphinx to complain, as the literal blocks there are not properly tagged as such. Also, a new note added there doesn't follow the ReST format. This fixes the following warnings: Documentation/trace/events.rst:589: WARNING: Definition list ends without a blank line; unexpected unindent. Documentation/trace/events.rst:620: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:623: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:626: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:703: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:697: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:722: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:775: WARNING: Definition list ends without a blank line; unexpected unindent. Documentation/trace/events.rst:814: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:817: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:820: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:823: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:826: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:829: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:832: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:844: WARNING: Unexpected indentation. Documentation/trace/events.rst:845: WARNING: Block quote ends without a blank line; unexpected unindent. Documentation/trace/events.rst:849: WARNING: Unexpected indentation. Documentation/trace/events.rst:850: WARNING: Block quote ends without a blank line; unexpected unindent. Documentation/trace/events.rst:883: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:886: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:889: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:895: WARNING: Bullet list ends without a blank line; unexpected unindent. Documentation/trace/events.rst:895: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:968: WARNING: Inline emphasis start-string without end-string. Fixes: 34ed63573b66 ("tracing: Documentation for in-kernel synthetic event API") Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Reviewed-by: Tom Zanussi <zanussi@kernel.org> Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Link: https://lore.kernel.org/r/afbe367ccb7b9abcb9fab7bc5cb5e0686c105a53.1583250595.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-10Documentation: Add io_ordering.rst to driver-api manualPragat Pandya
Add io_ordering.rst under Documentation/driver-api and reference it from the Sphinx TOC Tree present in Documentation/driver-api/index.rst Signed-off-by: Pragat Pandya <pragat.pandya@gmail.com> Link: https://lore.kernel.org/r/20200303050301.5412-3-pragat.pandya@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-10Documentation: Add io-mapping.rst to driver-api manualPragat Pandya
Add io-mapping.rst under Documentation/driver-api and reference it from Sphinx TOC Tree present in Documentation/driver-api/index.rst Signed-off-by: Pragat Pandya <pragat.pandya@gmail.com> Link: https://lore.kernel.org/r/20200303050301.5412-2-pragat.pandya@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-10Documentation: management-style: Fix formatting of emphsized wordJonathan Neuschäfer
Commit 7f2b3c65b9a1 ("Documentation/ManagementStyle: convert it to ReST markup") converted _underlined_ to *emphasized* words, but forgot about an underscore in this case. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Link: https://lore.kernel.org/r/20200303192113.20761-1-j.neuschaefer@gmx.net Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-10docs: dev-tools: kmemleak: Update list of architecturesJonathan Neuschäfer
* Don't list powerpc twice (once as ppc) * Drop tile, which has been removed from the source tree * Mention arm64, nds32, arc, and xtensa Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Link: https://lore.kernel.org/r/20200303194215.23756-1-j.neuschaefer@gmx.net Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-10docs: Remove :c:func: from process/deprecated.rstJonathan Corbet
Documentation/process/deprecated.rst has a lot of uses of :c:func:, which is, well, deprecated. Emacs query-replace-regexp to the rescue. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-10docs: deprecated.rst: Clean up fall-through detailsKees Cook
Add example of fall-through, list-ify the case ending statements, and adjust the markup for links and readability. While here, adjust strscpy() details to mention strscpy_pad(). Signed-off-by: Kees Cook <keescook@chromium.org> Acked-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Link: https://lore.kernel.org/r/202003041102.47A4E4B62@keescook Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-10docs: move core-api/ioctl.rst to driver-api/Jonathan Corbet
The ioctl() documentation belongs with the rest of the driver-oriented info, so move it there. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-10docs: move gcc-plugins to the kbuild manualJonathan Corbet
Information about GCC plugins is relevant to kernel building, so move this document to the kbuild manual. Acked-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-10docs: Organize core-api/index.rstJonathan Corbet
The core-api manual has become a big, disorganized mess. Try to bring a small amount of order to it by organizing the documents into subcategories. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-10docs: deprecated.rst: Add %p to the listKees Cook
Once in a while %p usage comes up, and I've needed to have a reference to point people to. Add %p details to deprecated.rst. Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/202003042301.F844A8C0EC@keescook Signed-off-by: Jonathan Corbet <corbet@lwn.net>
generated by cgit (git 2.34.1) at 2024-06-02 18:40:11 +0000