- 01 May, 2021 15 commits
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Masahiro Yamada authored
The pattern prefixed with '/' matches files in the same directory, but not ones in sub-directories. Signed-off-by:
Masahiro Yamada <masahiroy@kernel.org> Acked-by:
Miguel Ojeda <ojeda@kernel.org> Acked-by:
Rob Herring <robh@kernel.org> Acked-by:
Andra Paraschiv <andraprs@amazon.com> Acked-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by:
Gabriel Krisman Bertazi <krisman@collabora.com>
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Masahiro Yamada authored
LANG gives a weak default to each LC_* in case it is not explicitly defined. LC_ALL, if set, overrides all other LC_* variables. LANG < LC_CTYPE, LC_COLLATE, LC_MONETARY, LC_NUMERIC, ... < LC_ALL This is why documentation such as [1] suggests to set LC_ALL in build scripts to get the deterministic result. LANG=C is not strong enough to override LC_* that may be set by end users. [1]: https://reproducible-builds.org/docs/locales/Signed-off-by:
Matthias Maennich <maennich@google.com> Acked-by: Matthieu Baerts <matthieu.baerts@tessares.net> (mptcp) Reviewed-by:
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Nathan Chancellor authored
Currently, -Wunused-but-set-variable is only supported by GCC so it is disabled unconditionally in a GCC only block (it is enabled with W=1). clang currently has its implementation for this warning in review so preemptively move this statement out of the GCC only block and wrap it with cc-disable-warning so that both compilers function the same. Cc: stable@vger.kernel.org Link: https://reviews.llvm.org/D100581Signed-off-by:
Nathan Chancellor <nathan@kernel.org> Reviewed-by:
Nick Desaulniers <ndesaulniers@google.com> Tested-by:
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Masahiro Yamada authored
We maintain .gitignore and Makefiles so build artifacts are properly ignored by Git, and cleaned up by 'make clean'. However, the code is always changing; generated files are often moved to another directory, or removed when they become unnecessary. Such garbage files tend to be left over in the source tree because people usually git-pull without cleaning the tree. This is not only the noise for 'git status', but also a build issue in some cases. One solution is to remove a stale file like commit 223c24a7 ("kbuild: Automatically remove stale <linux/version.h> file") did. Such workaround should be removed after a while, but we forget about that if we scatter the workaround code in random places. So, this commit adds a new script to collect cleanings of stale files. As a start point, move the code in arch/arm/boot/compressed/Makefile into this script. Signed-off-by:
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Masahiro Yamada authored
If the timestamp of the .config file is updated, config_data.gz is regenerated, then vmlinux is re-linked. This occurs even if the content of the .config has not changed at all. This issue was mitigated by commit 67424f61 ("kconfig: do not write .config if the content is the same"); Kconfig does not update the .config when it ends up with the identical configuration. The issue is remaining when the .config is created by *_defconfig with some config fragment(s) applied on top. This is typical for powerpc and mips, where several *_defconfig targets are constructed by using merge_config.sh. One workaround is to have the copy of the .config. The filechk rule updates the copy, kernel/config_data, by checking the content instead of the timestamp. With this commit, the second run with the same configuration avoids the needless rebuilds. $ make ARCH=mips defconfig all [ snip ] $ make ARCH=mips defconfig all *** Default configuration is based on target '32r2el_defconfig' Using ./arch/mips/configs/generic_defconfig as base Merging arch/mips/configs/generic/32r2.config Merging arch/mips/configs/generic/el.config Merging ./arch/mips/configs/generic/board-boston.config Merging ./arch/mips/configs/generic/board-ni169445.config Merging ./arch/mips/configs/generic/board-ocelot.config Merging ./arch/mips/configs/generic/board-ranchu.config Merging ./arch/mips/configs/generic/board-sead-3.config Merging ./arch/mips/configs/generic/board-xilfpga.config # # configuration written to .config # SYNC include/config/auto.conf CALL scripts/checksyscalls.sh CALL scripts/atomic/check-atomics.sh CHK include/generated/compile.h CHK include/generated/autoksyms.h Reported-by:
Elliot Berman <eberman@codeaurora.org> Signed-off-by:
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Masahiro Yamada authored
modules.builtin used to be created in every directory. Since commit 8b41fc44 ("kbuild: create modules.builtin without Makefile.modbuiltin or tristate.conf"), modules.builtin is created only in the top directory. Add the '/' prefix so that it matches to only the modules.builtin located in the top directory. It has been more than one year since that change. I hope this will not flood 'Untracked files' of 'git status'. Signed-off-by:
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Masahiro Yamada authored
For consistency, move tags and TAGS close to the cscope and GNU Global patterns. I removed the '/' prefix in case somebody wants to manually create tag files in sub-directories. Signed-off-by: -
Masahiro Yamada authored
timeconst.h and hz.bc used to exist in kernel/. Commit 5cee9645 ("time/timers: Move all time(r) related files into kernel/time") moved them to kernel/time/. Commit 0a227985 ("time: Move timeconst.h into include/generated") moved timeconst.h to include/generated/ and removed hz.bc . Signed-off-by:
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Masahiro Yamada authored
The current .gitignore intends to ignore everything under usr/include/ except .gitignore and Makefile. A cleaner solution is to use a pattern suffixed with '/', which matches only directories. It works well here because all the exported headers are located in sub-directories, like <linux/*.h>, <asm/*.h>. Signed-off-by: -
Masahiro Yamada authored
(shipped source) is a stale comment. Since commit 833e6224 ("genksyms: generate lexer and parser during build instead of shipping"), there is no source file to be shipped in this directory. Signed-off-by:
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Masahiro Yamada authored
cmd_shipped uses 'cat' instead of 'cp' for copying a file. The reason is explained in the commit [1], but it was in the pre-git era. $ touch a $ chmod -w a $ cp a b $ cp a b cp: cannot create regular file 'b': Permission denied Add comments so that you can see the reason without looking into the history. [1]: https://git.kernel.org/pub/scm/linux/kernel/git/history/history.git/commit/?id=a70dba8086160449cc94c5bdaff78419b6b8e3c8Signed-off-by:
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Masahiro Yamada authored
Many architectures duplicate similar shell scripts. This commit converts sparc to use scripts/syscallhdr.sh. Signed-off-by: -
Masahiro Yamada authored
Many architectures duplicate similar shell scripts. This commit converts sparc to use scripts/syscalltbl.sh. This also unifies syscall_table_64.h and syscall_table_c32.h. Signed-off-by: -
Masahiro Yamada authored
Many architectures duplicate similar shell scripts. This commit converts sh to use scripts/syscallhdr.sh. Signed-off-by: -
Masahiro Yamada authored
Many architectures duplicate similar shell scripts. This commit converts sh to use scripts/syscalltbl.sh. Signed-off-by:
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- 30 Apr, 2021 25 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4Linus Torvalds authored
Pull ext4 updates from Ted Ts'o: "New features for ext4 this cycle include support for encrypted casefold, ensure that deleted file names are cleared in directory blocks by zeroing directory entries when they are unlinked or moved as part of a hash tree node split. We also improve the block allocator's performance on a freshly mounted file system by prefetching block bitmaps. There are also the usual cleanups and bug fixes, including fixing a page cache invalidation race when there is mixed buffered and direct I/O and the block size is less than page size, and allow the dax flag to be set and cleared on inline directories" * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (32 commits) ext4: wipe ext4_dir_entry2 upon file deletion ext4: Fix occasional generic/418 failure fs: fix reporting supported extra file attributes for statx() ext4: allow the dax flag to be set and cleared on inline directories ext4: fix debug format string warning ext4: fix trailing whitespace ext4: fix various seppling typos ext4: fix error return code in ext4_fc_perform_commit() ext4: annotate data race in jbd2_journal_dirty_metadata() ext4: annotate data race in start_this_handle() ext4: fix ext4_error_err save negative errno into superblock ext4: fix error code in ext4_commit_super ext4: always panic when errors=panic is specified ext4: delete redundant uptodate check for buffer ext4: do not set SB_ACTIVE in ext4_orphan_cleanup() ext4: make prefetch_block_bitmaps default ext4: add proc files to monitor new structures ext4: improve cr 0 / cr 1 group scanning ext4: add MB_NUM_ORDERS macro ext4: add mballoc stats proc file ...
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git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlmLinus Torvalds authored
Pull dlm updates from David Teigland: "This includes more dlm networking cleanups and improvements for making dlm shutdowns more robust" * tag 'dlm-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm: fs: dlm: fix missing unlock on error in accept_from_sock() fs: dlm: add shutdown hook fs: dlm: flush swork on shutdown fs: dlm: remove unaligned memory access handling fs: dlm: check on minimum msglen size fs: dlm: simplify writequeue handling fs: dlm: use GFP_ZERO for page buffer fs: dlm: change allocation limits fs: dlm: add check if dlm is currently running fs: dlm: add errno handling to check callback fs: dlm: set subclass for othercon sock_mutex fs: dlm: set connected bit after accept fs: dlm: fix mark setting deadlock fs: dlm: fix debugfs dump
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuseLinus Torvalds authored
Pull fuse updates from Miklos Szeredi: - Fix a page locking bug in write (introduced in 2.6.26) - Allow sgid bit to be killed in setacl() - Miscellaneous fixes and cleanups * tag 'fuse-update-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: cuse: simplify refcount cuse: prevent clone virtiofs: fix userns virtiofs: remove useless function virtiofs: split requests that exceed virtqueue size virtiofs: fix memory leak in virtio_fs_probe() fuse: invalidate attrs when page writeback completes fuse: add a flag FUSE_SETXATTR_ACL_KILL_SGID to kill SGID fuse: extend FUSE_SETXATTR request fuse: fix matching of FUSE_DEV_IOC_CLONE command fuse: fix a typo fuse: don't zero pages twice fuse: fix typo for fuse_conn.max_pages comment fuse: fix write deadlock
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfsLinus Torvalds authored
Pull overlayfs update from Miklos Szeredi: - Fix a regression introduced in 5.2 that resulted in valid overlayfs mounts being rejected with ELOOP (Too many levels of symbolic links) - Fix bugs found by various tools - Miscellaneous improvements and cleanups * tag 'ovl-update-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: ovl: add debug print to ovl_do_getxattr() ovl: invalidate readdir cache on changes to dir with origin ovl: allow upperdir inside lowerdir ovl: show "userxattr" in the mount data ovl: trivial typo fixes in the file inode.c ovl: fix misspellings using codespell tool ovl: do not copy attr several times ovl: remove ovl_map_dev_ino() return value ovl: fix error for ovl_fill_super() ovl: fix missing revert_creds() on error path ovl: fix leaked dentry ovl: restrict lower null uuid for "xino=auto" ovl: check that upperdir path is not on a read-only mount ovl: plumb through flush method
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Linus Torvalds authored
Merge misc updates from Andrew Morton: "A few misc subsystems and some of MM. 175 patches. Subsystems affected by this patch series: ia64, kbuild, scripts, sh, ocfs2, kfifo, vfs, kernel/watchdog, and mm (slab-generic, slub, kmemleak, debug, pagecache, msync, gup, memremap, memcg, pagemap, mremap, dma, sparsemem, vmalloc, documentation, kasan, initialization, pagealloc, and memory-failure)" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (175 commits) mm/memory-failure: unnecessary amount of unmapping mm/mmzone.h: fix existing kernel-doc comments and link them to core-api mm: page_alloc: ignore init_on_free=1 for debug_pagealloc=1 net: page_pool: use alloc_pages_bulk in refill code path net: page_pool: refactor dma_map into own function page_pool_dma_map SUNRPC: refresh rq_pages using a bulk page allocator SUNRPC: set rq_page_end differently mm/page_alloc: inline __rmqueue_pcplist mm/page_alloc: optimize code layout for __alloc_pages_bulk mm/page_alloc: add an array-based interface to the bulk page allocator mm/page_alloc: add a bulk page allocator mm/page_alloc: rename alloced to allocated mm/page_alloc: duplicate include linux/vmalloc.h mm, page_alloc: avoid page_to_pfn() in move_freepages() mm/Kconfig: remove default DISCONTIGMEM_MANUAL mm: page_alloc: dump migrate-failed pages mm/mempolicy: fix mpol_misplaced kernel-doc mm/mempolicy: rewrite alloc_pages_vma documentation mm/mempolicy: rewrite alloc_pages documentation mm/mempolicy: rename alloc_pages_current to alloc_pages ...
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlLinus Torvalds authored
Pull pin control updates from Linus Walleij: "There is a lot going on! Core changes: - A semantic change to handle pinmux and pinconf in explicit order while up until now we depended on the semantic order in the device tree. The device tree is a functional programming language and does not imply any order, so the right thing is for the pin control core to provide these semantics. - Add a new pinmux-select debugfs file which makes it possible to go in and select functions for a pin manually (iteratively, at the prompt) for debugging purposes. - Fixes to gpio regmap handling for a new pin control driver making use of regmap-gpio. - Use octal permissions on debugfs files. New drivers: - A massive rewrite of the former custom pin control driver for MIPS Broadcom devices to instead use the pin control subsystem. New pin control drivers for BCM6345, BCM6328, BCM6358, BCM6362, BCM6368, BCM63268 and BCM6318 SoC variants are implemented. - Support for PM8350, PM8350B, PM8350C, PMK8350, PMR735A and PMR735B in the Qualcomm PMIC GPIO driver. Also the two GPIOs on PM8008 are supported. - Support for the Rockchip RK3568/RK3566 pin controller. - Support for Ingenic JZ4730, JZ4750, JZ4755, JZ4775 and X2000. - Support for Mediatek MTK8195. - Add a new Xilinx ZynqMP pin control driver. Driver improvements and non-urgent fixes: - Modularization and improvements of the Rockchip drivers. - Some new pins added to the description of new Renesas SoCs. - Clarifications of the GPIO base calculation in the Intel driver. - Fix the function names for the MPP54 and MPP55 pins in the Armada CP110 pin controller. - GPIO wakeup interrupt map for Qualcomm SC7280 and SM8350. - Support for ACPI probing of the Qualcomm SC8180x. - Fix interrupt clear status on rockchip - Fix some missing pins on the Ingenic JZ4770, some semantic fixes for the behaviour of the Ingenic pin controller. Add DMIC pins for JZ4780, X1000, X1500 and X1830. - A slew of janitorial like of_node_put() calls" * tag 'pinctrl-v5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (99 commits) pinctrl: Add Xilinx ZynqMP pinctrl driver support firmware: xilinx: Add pinctrl support pinctrl: rockchip: do coding style for mux route struct pinctrl: Add PIN_CONFIG_MODE_PWM to enum pin_config_param pinctrl: Introduce MODE group in enum pin_config_param pinctrl: Keep enum pin_config_param ordered by name dt-bindings: pinctrl: Add binding for ZynqMP pinctrl driver pinctrl: core: Fix kernel doc string for pin_get_name() pinctrl: mediatek: use spin lock in mtk_rmw pinctrl: add drive for I2C related pins on MT8195 pinctrl: add pinctrl driver on mt8195 dt-bindings: pinctrl: mt8195: add pinctrl file and binding document pinctrl: Ingenic: Add pinctrl driver for X2000. pinctrl: Ingenic: Add pinctrl driver for JZ4775. pinctrl: Ingenic: Add pinctrl driver for JZ4755. pinctrl: Ingenic: Add pinctrl driver for JZ4750. pinctrl: Ingenic: Add pinctrl driver for JZ4730. dt-bindings: pinctrl: Add bindings for new Ingenic SoCs. pinctrl: Ingenic: Reformat the code. pinctrl: Ingenic: Add DMIC pins support for Ingenic SoCs. ... -
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linuxLinus Torvalds authored
Pull i2c updates from Wolfram Sang: - new drivers for Silicon Labs CP2615 and the HiSilicon I2C unit - bigger refactoring for the MPC driver - support for full software nodes - no need to work around with only properties anymore - we now have 'devm_i2c_add_adapter', too - sub-system wide fixes for the RPM refcounting problem which often caused a leak when an error was encountered during probe - the rest is usual driver updates and improvements * 'i2c/for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (77 commits) i2c: mediatek: Use scl_int_delay_ns to compensate clock-stretching i2c: mediatek: Fix wrong dma sync flag i2c: mediatek: Fix send master code at more than 1MHz i2c: sh7760: fix IRQ error path i2c: i801: Add support for Intel Alder Lake PCH-M i2c: core: Fix spacing error by checkpatch i2c: s3c2410: simplify getting of_device_id match data i2c: nomadik: Fix space errors i2c: iop3xx: Fix coding style issues i2c: amd8111: Fix coding style issues i2c: mpc: Drop duplicate message from devm_platform_ioremap_resource() i2c: mpc: Use device_get_match_data() helper i2c: mpc: Remove CONFIG_PM_SLEEP ifdeffery i2c: mpc: Use devm_clk_get_optional() i2c: mpc: Update license and copyright i2c: mpc: Interrupt driven transfer i2c: sh7760: add IRQ check i2c: rcar: add IRQ check i2c: mlxbf: add IRQ check i2c: jz4780: add IRQ check ...
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git://git.kernel.org/pub/scm/linux/kernel/git/hid/hidLinus Torvalds authored
Pull HID updates from Jiri Kosina: - Surface Aggregator Module support from Maximilian Luz - Apple Magic Mouse 2 support from John Chen - Support for newer Quad/BT 2.0 Logitech receivers in HID proxy mode from Hans de Goede - Thinkpad X1 Tablet keyboard support from Hans de Goede - Support for FTDI FT260 I2C host adapter from Michael Zaidman - other various small device-specific quirks, fixes and cleanups * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (46 commits) HID: wacom: Setup pen input capabilities to the targeted tools HID: hid-sensor-hub: Move 'hsdev' description to correct struct definition HID: hid-sensor-hub: Remove unused struct member 'quirks' HID: wacom_sys: Demote kernel-doc abuse HID: hid-sensor-custom: Remove unused variable 'ret' HID: hid-uclogic-params: Ensure function names are present and correct in kernel-doc headers HID: hid-uclogic-rdesc: Kernel-doc is for functions and structs HID: hid-logitech-hidpp: Fix conformant kernel-doc header and demote abuses HID: hid-picolcd_core: Remove unused variable 'ret' HID: hid-kye: Fix incorrect function name for kye_tablet_enable() HID: hid-core: Fix incorrect function name in header HID: hid-alps: Correct struct misnaming HID: usbhid: hid-pidff: Demote a couple kernel-doc abuses HID: usbhid: Repair a formatting issue in a struct description HID: hid-thrustmaster: Demote a bunch of kernel-doc abuses HID: input: map battery capacity (00850065) HID: magicmouse: fix reconnection of Magic Mouse 2 HID: magicmouse: fix 3 button emulation of Mouse 2 HID: magicmouse: add Apple Magic Mouse 2 support HID: lenovo: Add support for Thinkpad X1 Tablet Thin keyboard ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/soundLinus Torvalds authored
Pull sound updates from Takashi Iwai: "No surprises in this development cycle, and most of work is about the fixes and the improvements of the existing code, while a new LED control layer and a few new drivers have been introduced. Here are some highlights: Core: - A common mute-LED framework was introduced. It is used by HD-audio for now, more adaption will follow later. The former "Mic Mute-LED Mode" mixer control has been replaced with the corresponding sysfs now. - User-control management was changed to count consumed bytes instead of capping by number of elements; this will allow more controls in the normal usage pattern while avoiding the possible memory exhaustion DoS ASoC: - Continued refactoring and cleanups in ASoC core and generic card drivers - Wide range of small cppcheck and warning fixes - New drivers for Freescale i.MX DMA over rpmsg, Mediatek MT6358 accessory detection, and Realtek RT1019, RT1316, RT711 and RT715 USB-audio: - Continued improvements and fixes of the implicit feedback mode, including better support for Pioneer and Roland/BOSS devices HD-audio: - Default back to non-buffer preallocation on x86 - Cirrus codec improvements, more quirks for Realtek codecs Others: - New virtio sound driver - FireWire Bebob updates" * tag 'sound-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (587 commits) ALSA: hda/conexant: Re-order CX5066 quirk table entries ALSA: hda/realtek: Remove redundant entry for ALC861 Haier/Uniwill devices ALSA: hda/realtek: Re-order ALC662 quirk table entries ALSA: hda/realtek: Re-order remaining ALC269 quirk table entries ALSA: hda/realtek: Re-order ALC269 Lenovo quirk table entries ALSA: hda/realtek: Re-order ALC269 Sony quirk table entries ALSA: hda/realtek: Re-order ALC269 ASUS quirk table entries ALSA: hda/realtek: Re-order ALC269 Dell quirk table entries ALSA: hda/realtek: Re-order ALC269 Acer quirk table entries ALSA: hda/realtek: Re-order ALC269 HP quirk table entries ALSA: hda/realtek: Re-order ALC882 Clevo quirk table entries ALSA: hda/realtek: Re-order ALC882 Sony quirk table entries ALSA: hda/realtek: Re-order ALC882 Acer quirk table entries ALSA: usb-audio: Remove redundant assignment to len ALSA: hda/realtek: Add quirk for Intel Clevo PCx0Dx ALSA: virtio: fix kernel-doc ALSA: hda/cirrus: Use CS8409 filter to fix abnormal sounds on Bullseye ALSA: hda/cirrus: Set Initial DMIC volume for Bullseye to -26 dB ALSA: sb: Fix two use after free in snd_sb_qsound_build ALSA: emu8000: Fix a use after free in snd_emu8000_create_mixer ... -
git://anongit.freedesktop.org/drm/drmLinus Torvalds authored
Pull more drm updates from Dave Airlie: "Looks like I missed a tegra feature request for next, but should still be fine since it's pretty self contained. Apart from that got a set of i915 and amdgpu fixes as per usual along with a few misc fixes. tegra: - Tegra186 hardware cursor support - better capability reporting for different SoC - better framebuffer modifier support - host1x fixes ttm: - fix unswappable BO handling efifb: - check for PCI before using it amdgpu: - Fixes for Aldebaran - Display LTTPR fixes - eDP fixes - Fixes for Vangogh - RAS fixes - ASPM support - Renoir SMU fixes - Modifier fixes - Misc code cleanups - Freesync fixes i915: - Several fixes to GLK handling in recent display refactoring - Rare watchdog timer race fix - Cppcheck redundant condition fix - Overlay error code propagation fix - Documentation fix - gvt: Remove one unused function warning - gvt: Fix intel_gvt_init_device() return type - gvt: Remove one duplicated register accessible check" * tag 'drm-next-2021-04-30' of git://anongit.freedesktop.org/drm/drm: (111 commits) efifb: Check efifb_pci_dev before using it drm/i915: Fix docbook descriptions for i915_gem_shrinker drm/i915: fix an error code in intel_overlay_do_put_image() drm/i915/display/psr: Fix cppcheck warnings drm/i915: Disable LTTPR detection on GLK once again drm/i915: Restore lost glk ccs w/a drm/i915: Restore lost glk FBC 16bpp w/a drm/i915: Take request reference before arming the watchdog timer drm/ttm: fix error handling if no BO can be swapped out v4 drm/i915/gvt: Remove duplicated register accessible check drm/amdgpu/gmc9: remove dummy read workaround for newer chips drm/amdgpu: Add mem sync flag for IB allocated by SA drm/amdgpu: Fix SDMA RAS error reporting on Aldebaran drm/amdgpu: Reset RAS error count and status regs Revert "drm/amdgpu: workaround the TMR MC address issue (v2)" drm/amd/display: 3.2.132 drm/amd/display: [FW Promotion] Release 0.0.62 drm/amd/display: add helper for enabling mst stream features drm/amd/display: Report Proper Quantization Range in AVI Infoframe drm/amd/display: Fix call to pass bpp in 16ths of a bit ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linuxLinus Torvalds authored
Pull module updates from Jessica Yu: "Fix an age old bug involving jump_calls and static_labels when CONFIG_MODULE_UNLOAD=n. When CONFIG_MODULE_UNLOAD=n, it means you can't unload modules, so normally the __exit sections of a module are not loaded at all. However, dynamic code patching (jump_label, static_call, alternatives) can have sites in __exit sections even if __exit is never executed. Reported by Peter Zijlstra: 'Alternatives, jump_labels and static_call all can have relocations into __exit code. Not loading it at all would be BAD.' Therefore, load the __exit sections even when CONFIG_MODULE_UNLOAD=n, and discard them after init" * tag 'modules-for-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux: module: treat exit sections the same as init sections when !CONFIG_MODULE_UNLOAD -
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc updates from Michael Ellerman: - Enable KFENCE for 32-bit. - Implement EBPF for 32-bit. - Convert 32-bit to do interrupt entry/exit in C. - Convert 64-bit BookE to do interrupt entry/exit in C. - Changes to our signal handling code to use user_access_begin/end() more extensively. - Add support for time namespaces (CONFIG_TIME_NS) - A series of fixes that allow us to reenable STRICT_KERNEL_RWX. - Other smaller features, fixes & cleanups. Thanks to Alexey Kardashevskiy, Andreas Schwab, Andrew Donnellan, Aneesh Kumar K.V, Athira Rajeev, Bhaskar Chowdhury, Bixuan Cui, Cédric Le Goater, Chen Huang, Chris Packham, Christophe Leroy, Christopher M. Riedl, Colin Ian King, Dan Carpenter, Daniel Axtens, Daniel Henrique Barboza, David Gibson, Davidlohr Bueso, Denis Efremov, dingsenjie, Dmitry Safonov, Dominic DeMarco, Fabiano Rosas, Ganesh Goudar, Geert Uytterhoeven, Geetika Moolchandani, Greg Kurz, Guenter Roeck, Haren Myneni, He Ying, Jiapeng Chong, Jordan Niethe, Laurent Dufour, Lee Jones, Leonardo Bras, Li Huafei, Madhavan Srinivasan, Mahesh Salgaonkar, Masahiro Yamada, Nathan Chancellor, Nathan Lynch, Nicholas Piggin, Oliver O'Halloran, Paul Menzel, Pu Lehui, Randy Dunlap, Ravi Bangoria, Rosen Penev, Russell Currey, Santosh Sivaraj, Sebastian Andrzej Siewior, Segher Boessenkool, Shivaprasad G Bhat, Srikar Dronamraju, Stephen Rothwell, Thadeu Lima de Souza Cascardo, Thomas Gleixner, Tony Ambardar, Tyrel Datwyler, Vaibhav Jain, Vincenzo Frascino, Xiongwei Song, Yang Li, Yu Kuai, and Zhang Yunkai. * tag 'powerpc-5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (302 commits) powerpc/signal32: Fix erroneous SIGSEGV on RT signal return powerpc: Avoid clang uninitialized warning in __get_user_size_allowed powerpc/papr_scm: Mark nvdimm as unarmed if needed during probe powerpc/kvm: Fix build error when PPC_MEM_KEYS/PPC_PSERIES=n powerpc/kasan: Fix shadow start address with modules powerpc/kernel/iommu: Use largepool as a last resort when !largealloc powerpc/kernel/iommu: Align size for IOMMU_PAGE_SIZE() to save TCEs powerpc/44x: fix spelling mistake in Kconfig "varients" -> "variants" powerpc/iommu: Annotate nested lock for lockdep powerpc/iommu: Do not immediately panic when failed IOMMU table allocation powerpc/iommu: Allocate it_map by vmalloc selftests/powerpc: remove unneeded semicolon powerpc/64s: remove unneeded semicolon powerpc/eeh: remove unneeded semicolon powerpc/selftests: Add selftest to test concurrent perf/ptrace events powerpc/selftests/perf-hwbreak: Add testcases for 2nd DAWR powerpc/selftests/perf-hwbreak: Coalesce event creation code powerpc/selftests/ptrace-hwbreak: Add testcases for 2nd DAWR powerpc/configs: Add IBMVNIC to some 64-bit configs selftests/powerpc: Add uaccess flush test ...
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git://github.com/jcmvbkbc/linux-xtensaLinus Torvalds authored
Pull Xtensa updates from Max Filippov: - switch to generic syscall generation scripts - new GDBIO implementation for xtensa semihosting interface - various small code fixes and cleanups - a few typo fixes in comments and Kconfig help text * tag 'xtensa-20210429' of git://github.com/jcmvbkbc/linux-xtensa: xtensa: ISS: add GDBIO implementation to semihosting interface xtensa: ISS: split simcall implementation from semihosting interface xtensa: simcall.h: Change compitible to compatible xtensa: Couple of typo fixes xtensa: drop extraneous register load from initialize_mmu xtensa: fix pgprot_noncached assumptions xtensa: simplify coherent_kvaddr logic xtensa: syscalls: switch to generic syscallhdr.sh xtensa: syscalls: switch to generic syscalltbl.sh xtensa: stop filling syscall array with sys_ni_syscall xtensa: remove unneeded export in boot-elf/Makefile xtensa: move CONFIG_CPU_*_ENDIAN defines to Kconfig xtensa: fix warning comparing pointer to 0 xtensa: fix spelling mistake in Kconfig "wont" -> "won't"
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Jane Chu authored
It appears that unmap_mapping_range() actually takes a 'size' as its third argument rather than a location, the current calling fashion causes unnecessary amount of unmapping to occur. Link: https://lkml.kernel.org/r/20210420002821.2749748-1-jane.chu@oracle.com Fixes: 6100e34b ("mm, memory_failure: Teach memory_failure() about dev_pagemap pages") Signed-off-by:
Jane Chu <jane.chu@oracle.com> Reviewed-by:
Dan Williams <dan.j.williams@intel.com> Reviewed-by:
Naoya Horiguchi <naoya.horiguchi@nec.com> Cc: Dave Jiang <dave.jiang@intel.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Mike Rapoport authored
There are a couple of kernel-doc comments in include/linux/mmzone.h but they have minor formatting issues that would cause kernel-doc warnings. Fix the formatting of those comments, add missing Return: descriptions and link include/linux/mmzone.h to Documentation/core-api/mm-api.rst Link: https://lkml.kernel.org/r/20210426141927.1314326-2-rppt@kernel.orgSigned-off-by:
Mike Rapoport <rppt@linux.ibm.com> Reviewed-by:
Matthew Wilcox (Oracle) <willy@infradead.org> Reviewed-by:
Anshuman Khandual <anshuman.khandual@arm.com> Signed-off-by:
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Sergei Trofimovich authored
On !ARCH_SUPPORTS_DEBUG_PAGEALLOC (like ia64) debug_pagealloc=1 implies page_poison=on: if (page_poisoning_enabled() || (!IS_ENABLED(CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC) && debug_pagealloc_enabled())) static_branch_enable(&_page_poisoning_enabled); page_poison=on needs to override init_on_free=1. Before the change it did not work as expected for the following case: - have PAGE_POISONING=y - have page_poison unset - have !ARCH_SUPPORTS_DEBUG_PAGEALLOC arch (like ia64) - have init_on_free=1 - have debug_pagealloc=1 That way we get both keys enabled: - static_branch_enable(&init_on_free); - static_branch_enable(&_page_poisoning_enabled); which leads to poisoned pages returned for __GFP_ZERO pages. After the change we execute only: - static_branch_enable(&_page_poisoning_enabled); and ignore init_on_free=1. Link: https://lkml.kernel.org/r/20210329222555.3077928-1-slyfox@gentoo.org Link: https://lkml.org/lkml/2021/3/26/443 Fixes: 8db26a3d ("mm, page_poison: use static key more efficiently") Signed-off-by:Sergei Trofimovich <slyfox@gentoo.org> Acked-by:
Vlastimil Babka <vbabka@suse.cz> Reviewed-by:
David Hildenbrand <david@redhat.com> Cc: Andrey Konovalov <andreyknvl@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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Jesper Dangaard Brouer authored
There are cases where the page_pool need to refill with pages from the page allocator. Some workloads cause the page_pool to release pages instead of recycling these pages. For these workload it can improve performance to bulk alloc pages from the page-allocator to refill the alloc cache. For XDP-redirect workload with 100G mlx5 driver (that use page_pool) redirecting xdp_frame packets into a veth, that does XDP_PASS to create an SKB from the xdp_frame, which then cannot return the page to the page_pool. Performance results under GitHub xdp-project[1]: [1] https://github.com/xdp-project/xdp-project/blob/master/areas/mem/page_pool06_alloc_pages_bulk.org Mel: The patch "net: page_pool: convert to use alloc_pages_bulk_array variant" was squashed with this patch. From the test page, the array variant was superior with one of the test results as follows. Kernel XDP stats CPU pps Delta Baseline XDP-RX CPU total 3,771,046 n/a List XDP-RX CPU total 3,940,242 +4.49% Array XDP-RX CPU total 4,249,224 +12.68% Link: https://lkml.kernel.org/r/20210325114228.27719-10-mgorman@techsingularity.netSigned-off-by:
Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by:
Mel Gorman <mgorman@techsingularity.net> Reviewed-by:
Alexander Lobakin <alobakin@pm.me> Cc: Alexander Duyck <alexander.duyck@gmail.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Chuck Lever <chuck.lever@oracle.com> Cc: David Miller <davem@davemloft.net> Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by:
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Jesper Dangaard Brouer authored
In preparation for next patch, move the dma mapping into its own function, as this will make it easier to follow the changes. [ilias.apalodimas: make page_pool_dma_map return boolean] Link: https://lkml.kernel.org/r/20210325114228.27719-9-mgorman@techsingularity.netSigned-off-by:
Ilias Apalodimas <ilias.apalodimas@linaro.org> Reviewed-by:
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Chuck Lever authored
Reduce the rate at which nfsd threads hammer on the page allocator. This improves throughput scalability by enabling the threads to run more independently of each other. [mgorman: Update interpretation of alloc_pages_bulk return value] Link: https://lkml.kernel.org/r/20210325114228.27719-8-mgorman@techsingularity.netSigned-off-by:
Chuck Lever <chuck.lever@oracle.com> Signed-off-by:
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Chuck Lever authored
Patch series "SUNRPC consumer for the bulk page allocator" This patch set and the measurements below are based on yesterday's bulk allocator series: git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux.git mm-bulk-rebase-v5r9 The patches change SUNRPC to invoke the array-based bulk allocator instead of alloc_page(). The micro-benchmark results are promising. I ran a mixture of 256KB reads and writes over NFSv3. The server's kernel is built with KASAN enabled, so the comparison is exaggerated but I believe it is still valid. I instrumented svc_recv() to measure the latency of each call to svc_alloc_arg() and report it via a trace point. The following results are averages across the trace events. Single page: 25.007 us per call over 532,571 calls Bulk list: 6.258 us per call over 517,034 calls Bulk array: 4.590 us per call over 517,442 calls This patch (of 2) Refactor: I'm about to use the loop variable @i for something else. As far as the "i++" is concerned, that is a post-increment. The value of @i is not used subsequently, so the increment operator is unnecessary and can be removed. Also note that nfsd_read_actor() was renamed nfsd_splice_actor() by commit cf8208d0 ("sendfile: convert nfsd to splice_direct_to_actor()"). Link: https://lkml.kernel.org/r/20210325114228.27719-7-mgorman@techsingularity.netSigned-off-by:
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Jesper Dangaard Brouer authored
When __alloc_pages_bulk() got introduced two callers of __rmqueue_pcplist exist and the compiler chooses to not inline this function. ./scripts/bloat-o-meter vmlinux-before vmlinux-inline__rmqueue_pcplist add/remove: 0/1 grow/shrink: 2/0 up/down: 164/-125 (39) Function old new delta rmqueue 2197 2296 +99 __alloc_pages_bulk 1921 1986 +65 __rmqueue_pcplist 125 - -125 Total: Before=19374127, After=19374166, chg +0.00% modprobe page_bench04_bulk loops=$((10**7)) Type:time_bulk_page_alloc_free_array - Per elem: 106 cycles(tsc) 29.595 ns (step:64) - (measurement period time:0.295955434 sec time_interval:295955434) - (invoke count:10000000 tsc_interval:1065447105) Before: - Per elem: 110 cycles(tsc) 30.633 ns (step:64) Link: https://lkml.kernel.org/r/20210325114228.27719-6-mgorman@techsingularity.netSigned-off-by:
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Jesper Dangaard Brouer authored
Looking at perf-report and ASM-code for __alloc_pages_bulk() it is clear that the code activated is suboptimal. The compiler guesses wrong and places unlikely code at the beginning. Due to the use of WARN_ON_ONCE() macro the UD2 asm instruction is added to the code, which confuse the I-cache prefetcher in the CPU. [mgorman@techsingularity.net: minor changes and rebasing] Link: https://lkml.kernel.org/r/20210325114228.27719-5-mgorman@techsingularity.netSigned-off-by:
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Mel Gorman authored
The proposed callers for the bulk allocator store pages from the bulk allocator in an array. This patch adds an array-based interface to the API to avoid multiple list iterations. The page list interface is preserved to avoid requiring all users of the bulk API to allocate and manage enough storage to store the pages. [akpm@linux-foundation.org: remove now unused local `allocated'] Link: https://lkml.kernel.org/r/20210325114228.27719-4-mgorman@techsingularity.netSigned-off-by:
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Mel Gorman authored
This patch adds a new page allocator interface via alloc_pages_bulk, and __alloc_pages_bulk_nodemask. A caller requests a number of pages to be allocated and added to a list. The API is not guaranteed to return the requested number of pages and may fail if the preferred allocation zone has limited free memory, the cpuset changes during the allocation or page debugging decides to fail an allocation. It's up to the caller to request more pages in batch if necessary. Note that this implementation is not very efficient and could be improved but it would require refactoring. The intent is to make it available early to determine what semantics are required by different callers. Once the full semantics are nailed down, it can be refactored. [mgorman@techsingularity.net: fix alloc_pages_bulk() return type, per Matthew] Link: https://lkml.kernel.org/r/20210325123713.GQ3697@techsingularity.net [mgorman@techsingularity.net: fix uninit var warning] Link: https://lkml.kernel.org/r/20210330114847.GX3697@techsingularity.net [mgorman@techsingularity.net: fix comment, per Vlastimil] Link: https://lkml.kernel.org/r/20210412110255.GV3697@techsingularity.net Link: https://lkml.kernel.org/r/20210325114228.27719-3-mgorman@techsingularity.netSigned-off-by:
Colin Ian King <colin.king@canonical.com> Cc: Alexander Duyck <alexander.duyck@gmail.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Chuck Lever <chuck.lever@oracle.com> Cc: David Miller <davem@davemloft.net> Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org> Cc: Jesper Dangaard Brouer <brouer@redhat.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by:
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Mel Gorman authored
Patch series "Introduce a bulk order-0 page allocator with two in-tree users", v6. This series introduces a bulk order-0 page allocator with sunrpc and the network page pool being the first users. The implementation is not efficient as semantics needed to be ironed out first. If no other semantic changes are needed, it can be made more efficient. Despite that, this is a performance-related for users that require multiple pages for an operation without multiple round-trips to the page allocator. Quoting the last patch for the high-speed networking use-case Kernel XDP stats CPU pps Delta Baseline XDP-RX CPU total 3,771,046 n/a List XDP-RX CPU total 3,940,242 +4.49% Array XDP-RX CPU total 4,249,224 +12.68% Via the SUNRPC traces of svc_alloc_arg() Single page: 25.007 us per call over 532,571 calls Bulk list: 6.258 us per call over 517,034 calls Bulk array: 4.590 us per call over 517,442 calls Both potential users in this series are corner cases (NFS and high-speed networks) so it is unlikely that most users will see any benefit in the short term. Other potential other users are batch allocations for page cache readahead, fault around and SLUB allocations when high-order pages are unavailable. It's unknown how much benefit would be seen by converting multiple page allocation calls to a single batch or what difference it may make to headline performance. Light testing of my own running dbench over NFS passed. Chuck and Jesper conducted their own tests and details are included in the changelogs. Patch 1 renames a variable name that is particularly unpopular Patch 2 adds a bulk page allocator Patch 3 adds an array-based version of the bulk allocator Patches 4-5 adds micro-optimisations to the implementation Patches 6-7 SUNRPC user Patches 8-9 Network page_pool user This patch (of 9): Review feedback of the bulk allocator twice found problems with "alloced" being a counter for pages allocated. The naming was based on the API name "alloc" and was based on the idea that verbal communication about malloc tends to use the fake word "malloced" instead of the fake word mallocated. To be consistent, this preparation patch renames alloced to allocated in rmqueue_bulk so the bulk allocator and per-cpu allocator use similar names when the bulk allocator is introduced. Link: https://lkml.kernel.org/r/20210325114228.27719-1-mgorman@techsingularity.net Link: https://lkml.kernel.org/r/20210325114228.27719-2-mgorman@techsingularity.netSigned-off-by:
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