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2020-10-13mm/slub: fix missing ALLOC_SLOWPATH stat when bulk allocAbel Wu1-1/+2
The ALLOC_SLOWPATH statistics is missing in bulk allocation now. Fix it by doing statistics in alloc slow path. Signed-off-by: Abel Wu <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Pekka Enberg <[email protected]> Acked-by: David Rientjes <[email protected]> Cc: Christoph Lameter <[email protected]> Cc: Joonsoo Kim <[email protected]> Cc: Hewenliang <[email protected]> Cc: Hu Shiyuan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-10-13mm/slub.c: branch optimization in free slowpathAbel Wu1-11/+12
The two conditions are mutually exclusive and gcc compiler will optimise this into if-else-like pattern. Given that the majority of free_slowpath is free_frozen, let's provide some hint to the compilers. Tests (perf bench sched messaging -g 20 -l 400000, executed 10x after reboot) are done and the summarized result: un-patched patched max. 192.316 189.851 min. 187.267 186.252 avg. 189.154 188.086 stdev. 1.37 0.99 Signed-off-by: Abel Wu <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Acked-by: Christoph Lameter <[email protected]> Cc: Pekka Enberg <[email protected]> Cc: David Rientjes <[email protected]> Cc: Joonsoo Kim <[email protected]> Cc: Hewenliang <[email protected]> Cc: Hu Shiyuan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-10-13include/linux/slab.h: fix a typo error in commenttangjianqiang1-1/+1
fix a typo error in slab.h "allocagtor" -> "allocator" Signed-off-by: tangjianqiang <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Acked-by: Souptick Joarder <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-10-13mm/slab.c: clean code by removing redundant if conditionMateusz Nosek1-2/+0
The removed code was unnecessary and changed nothing in the flow, since in case of returning NULL by 'kmem_cache_alloc_node' returning 'freelist' from the function in question is the same as returning NULL. Signed-off-by: Mateusz Nosek <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Cc: Christoph Lameter <[email protected]> Cc: Pekka Enberg <[email protected]> Cc: David Rientjes <[email protected]> Cc: Joonsoo Kim <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-10-13fs_parse: mark fs_param_bad_value() as staticLuo Jiaxing1-1/+1
We found the following warning when build kernel with W=1: fs/fs_parser.c:192:5: warning: no previous prototype for `fs_param_bad_value' [-Wmissing-prototypes] int fs_param_bad_value(struct p_log *log, struct fs_parameter *param) ^ CC drivers/usb/gadget/udc/snps_udc_core.o And no header file define a prototype for this function, so we should mark it as static. Signed-off-by: Luo Jiaxing <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-10-13fs/xattr.c: fix kernel-doc warnings for setxattr & removexattrRandy Dunlap1-11/+11
Fix kernel-doc warnings in fs/xattr.c: ../fs/xattr.c:251: warning: Function parameter or member 'dentry' not described in '__vfs_setxattr_locked' ../fs/xattr.c:251: warning: Function parameter or member 'name' not described in '__vfs_setxattr_locked' ../fs/xattr.c:251: warning: Function parameter or member 'value' not described in '__vfs_setxattr_locked' ../fs/xattr.c:251: warning: Function parameter or member 'size' not described in '__vfs_setxattr_locked' ../fs/xattr.c:251: warning: Function parameter or member 'flags' not described in '__vfs_setxattr_locked' ../fs/xattr.c:251: warning: Function parameter or member 'delegated_inode' not described in '__vfs_setxattr_locked' ../fs/xattr.c:458: warning: Function parameter or member 'dentry' not described in '__vfs_removexattr_locked' ../fs/xattr.c:458: warning: Function parameter or member 'name' not described in '__vfs_removexattr_locked' ../fs/xattr.c:458: warning: Function parameter or member 'delegated_inode' not described in '__vfs_removexattr_locked' Fixes: 08b5d5014a27 ("xattr: break delegations in {set,remove}xattr") Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Cc: Al Viro <[email protected]> Cc: Frank van der Linden <[email protected]> Cc: Chuck Lever <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-10-13ocfs2: fix potential soft lockup during fstrimGang He1-1/+3
When we discard unused blocks on a mounted ocfs2 filesystem, fstrim handles each block goup with locking/unlocking global bitmap meta-file repeatedly. we should let fstrim thread take a break(if need) between unlock and lock, this will avoid the potential soft lockup problem, and also gives the upper applications more IO opportunities, these applications are not blocked for too long at writing files. Signed-off-by: Gang He <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Joseph Qi <[email protected]> Cc: Mark Fasheh <[email protected]> Cc: Joel Becker <[email protected]> Cc: Junxiao Bi <[email protected]> Cc: Changwei Ge <[email protected]> Cc: Jun Piao <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-10-13ocfs2: delete repeated words in commentsRandy Dunlap2-2/+2
Drop duplicated words {the, and} in comments. Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Acked-by: Joseph Qi <[email protected]> Cc: Mark Fasheh <[email protected]> Cc: Joel Becker <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-10-13ntfs: add check for mft record size in superblockRustam Kovhaev1-0/+6
Number of bytes allocated for mft record should be equal to the mft record size stored in ntfs superblock as reported by syzbot, userspace might trigger out-of-bounds read by dereferencing ctx->attr in ntfs_attr_find() Reported-by: [email protected] Signed-off-by: Rustam Kovhaev <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Tested-by: [email protected] Acked-by: Anton Altaparmakov <[email protected]> Link: https://syzkaller.appspot.com/bug?extid=aed06913f36eff9b544e Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-10-13scripts/decodecode: add the capability to supply the program counterBorislav Petkov1-7/+22
So that comparing with objdump output from vmlinux can ease pinpointing where the trapping instruction actually is. An example is better than a thousand words: $ PC=0xffffffff8329a927 ./scripts/decodecode < ~/tmp/syz/gfs2.splat [ 477.379104][T23917] Code: 48 83 ec 28 48 89 3c 24 48 89 54 24 08 e8 c1 b4 4a fe 48 8d bb 00 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 97 05 00 00 48 8b 9b 00 01 00 00 48 85 db 0f 84 All code ======== ffffffff8329a8fd: 48 83 ec 28 sub $0x28,%rsp ffffffff8329a901: 48 89 3c 24 mov %rdi,(%rsp) ffffffff8329a905: 48 89 54 24 08 mov %rdx,0x8(%rsp) ffffffff8329a90a: e8 c1 b4 4a fe callq 0xffffffff81745dd0 ffffffff8329a90f: 48 8d bb 00 01 00 00 lea 0x100(%rbx),%rdi ffffffff8329a916: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax ffffffff8329a91d: fc ff df ffffffff8329a920: 48 89 fa mov %rdi,%rdx ffffffff8329a923: 48 c1 ea 03 shr $0x3,%rdx ffffffff8329a927:* 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction ffffffff8329a92b: 0f 85 97 05 00 00 jne 0xffffffff8329aec8 ffffffff8329a931: 48 8b 9b 00 01 00 00 mov 0x100(%rbx),%rbx ffffffff8329a938: 48 85 db test %rbx,%rbx ffffffff8329a93b: 0f .byte 0xf ffffffff8329a93c: 84 .byte 0x84 Signed-off-by: Borislav Petkov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Cc: Marc Zyngier <[email protected]> Cc: Will Deacon <[email protected]> Cc: Rabin Vincent <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-10-13scripts/spelling.txt: add "arbitrary" typoNaoki Hayama1-0/+1
Add "abitrary||arbitrary". Signed-off-by: Naoki Hayama <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Cc: Colin Ian King <[email protected]> Cc: Andy Whitcroft <[email protected]> Cc: Joe Perches <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-10-13scripts/spelling.txt: increase error-prone spell checkingWang Qing1-0/+3
Increase direcly,ununsed,manger spelling error check Signed-off-by: Wang Qing <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Cc: Colin Ian King <[email protected]> Cc: Wang Qing <[email protected]> Cc: Xiong <[email protected]> Cc: SeongJae Park <[email protected]> Cc: Jonathan Neuschfer <[email protected]> Cc: Luca Ceresoli <[email protected]> Cc: Joe Perches <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-10-13kbuild: doc: describe proper script invocationLukas Bulwahn1-0/+20
During an investigation to fix up the execute bits of scripts in the kernel repository, Andrew Morton and Kees Cook pointed out that the execute bit should not matter, and that build scripts cannot rely on that. Kees could not point to any documentation, though. Masahiro Yamada explained the convention of setting execute bits to make it easier for manual script invocation. Provide some basic documentation how the build shall invoke scripts, such that the execute bits do not matter, and acknowledge that execute bits are useful nonetheless. This serves as reference for further clean-up patches in the future. Suggested-by: Andrew Morton <[email protected]> Suggested-by: Kees Cook <[email protected]> Signed-off-by: Lukas Bulwahn <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Cc: Masahiro Yamada <[email protected]> Cc: Michal Marek <[email protected]> Cc: Jonathan Corbet <[email protected]> Cc: Ujjwal Kumar <[email protected]> Cc: Lukas Bulwahn <[email protected]> Link: https://lore.kernel.org/lkml/[email protected]/ Link: https://lore.kernel.org/lkml/202008271102.FEB906C88@keescook/ Link: https://lore.kernel.org/linux-kbuild/CAK7LNAQdrvMkDA6ApDJCGr+5db8SiPo=G+p8EiOvnnGvEN80gA@mail.gmail.com/ Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-10-13export.h: fix section name for CONFIG_TRIM_UNUSED_KSYMS for ClangNick Desaulniers1-1/+1
When enabling CONFIG_TRIM_UNUSED_KSYMS, the linker will warn about the orphan sections: (".discard.ksym") is being placed in '".discard.ksym"' repeatedly when linking vmlinux. This is because the stringification operator, `#`, in the preprocessor escapes strings. GCC and Clang differ in how they treat section names that contain \". The portable solution is to not use a string literal with the preprocessor stringification operator. Fixes: commit bbda5ec671d3 ("kbuild: simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS") Reported-by: kbuild test robot <[email protected]> Suggested-by: Kees Cook <[email protected]> Signed-off-by: Nick Desaulniers <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Kees Cook <[email protected]> Cc: Nathan Chancellor <[email protected]> Cc: Masahiro Yamada <[email protected]> Cc: Matthias Maennich <[email protected]> Cc: Jessica Yu <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Will Deacon <[email protected]> Link: https://bugs.llvm.org/show_bug.cgi?id=42950 Link: https://github.com/ClangBuiltLinux/linux/issues/1166 Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-10-13compiler.h: avoid escaped section namesNick Desaulniers1-1/+1
The stringification operator, `#`, in the preprocessor escapes strings. For example, `# "foo"` becomes `"\"foo\""`. GCC and Clang differ in how they treat section names that contain \". The portable solution is to not use a string literal with the preprocessor stringification operator. In this case, since __section unconditionally uses the stringification operator, we actually want the more verbose __attribute__((__section__())). Fixes: commit e04462fb82f8 ("Compiler Attributes: remove uses of __attribute__ from compiler.h") Signed-off-by: Nick Desaulniers <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Cc: Miguel Ojeda <[email protected]> Cc: Luc Van Oostenryck <[email protected]> Cc: Nathan Chancellor <[email protected]> Cc: Arvind Sankar <[email protected]> Link: https://bugs.llvm.org/show_bug.cgi?id=42950 Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-10-13compiler-gcc: improve version errorNick Desaulniers1-1/+1
As Kees suggests, doing so provides developers with two useful pieces of information: - The kernel build was attempting to use GCC. (Maybe they accidentally poked the wrong configs in a CI.) - They need 4.9 or better. ("Upgrade to what version?" doesn't need to be dug out of documentation, headers, etc.) Suggested-by: Kees Cook <[email protected]> Signed-off-by: Nick Desaulniers <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Tested-by: Sedat Dilek <[email protected]> Reviewed-by: Kees Cook <[email protected]> Reviewed-by: Miguel Ojeda <[email protected]> Reviewed-by: Nathan Chancellor <[email protected]> Reviewed-by: Sedat Dilek <[email protected]> Cc: Andrey Konovalov <[email protected]> Cc: Fangrui Song <[email protected]> Cc: Marco Elver <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: Daniel Borkmann <[email protected]> Cc: Masahiro Yamada <[email protected]> Cc: Vincenzo Frascino <[email protected]> Cc: Will Deacon <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-10-13kasan: remove mentions of unsupported Clang versionsMarco Elver2-7/+6
Since the kernel now requires at least Clang 10.0.1, remove any mention of old Clang versions and simplify the documentation. Signed-off-by: Marco Elver <[email protected]> Signed-off-by: Nick Desaulniers <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrey Konovalov <[email protected]> Reviewed-by: Kees Cook <[email protected]> Reviewed-by: Nathan Chancellor <[email protected]> Cc: Fangrui Song <[email protected]> Cc: Miguel Ojeda <[email protected]> Cc: Sedat Dilek <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: Daniel Borkmann <[email protected]> Cc: Masahiro Yamada <[email protected]> Cc: Vincenzo Frascino <[email protected]> Cc: Will Deacon <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-10-13Partially revert "ARM: 8905/1: Emit __gnu_mcount_nc when using Clang 10.0.0 ↵Nick Desaulniers1-1/+1
or newer" This partially reverts commit b0fe66cf095016e0b238374c10ae366e1f087d11. The minimum supported version of clang is now clang 10.0.1. We still want to pass -meabi=gnu. Suggested-by: Nathan Chancellor <[email protected]> Signed-off-by: Nick Desaulniers <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Kees Cook <[email protected]> Reviewed-by: Nathan Chancellor <[email protected]> Cc: Andrey Konovalov <[email protected]> Cc: Fangrui Song <[email protected]> Cc: Marco Elver <[email protected]> Cc: Miguel Ojeda <[email protected]> Cc: Sedat Dilek <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: Daniel Borkmann <[email protected]> Cc: Masahiro Yamada <[email protected]> Cc: Vincenzo Frascino <[email protected]> Cc: Will Deacon <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-10-13Revert "arm64: vdso: Fix compilation with clang older than 8"Nick Desaulniers1-7/+0
This reverts commit 3acf4be235280f14d838581a750532219d67facc. The minimum supported version of clang is clang 10.0.1. Suggested-by: Nathan Chancellor <[email protected]> Signed-off-by: Nick Desaulniers <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Kees Cook <[email protected]> Reviewed-by: Nathan Chancellor <[email protected]> Cc: Andrey Konovalov <[email protected]> Cc: Fangrui Song <[email protected]> Cc: Marco Elver <[email protected]> Cc: Miguel Ojeda <[email protected]> Cc: Sedat Dilek <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: Daniel Borkmann <[email protected]> Cc: Masahiro Yamada <[email protected]> Cc: Vincenzo Frascino <[email protected]> Cc: Will Deacon <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-10-13Revert "arm64: bti: Require clang >= 10.0.1 for in-kernel BTI support"Nick Desaulniers1-2/+0
This reverts commit b9249cba25a5dce5de87e5404503a5e11832c2dd. The minimum supported version of clang is now 10.0.1. Suggested-by: Nathan Chancellor <[email protected]> Signed-off-by: Nick Desaulniers <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Kees Cook <[email protected]> Reviewed-by: Nathan Chancellor <[email protected]> Cc: Andrey Konovalov <[email protected]> Cc: Fangrui Song <[email protected]> Cc: Marco Elver <[email protected]> Cc: Miguel Ojeda <[email protected]> Cc: Sedat Dilek <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: Daniel Borkmann <[email protected]> Cc: Masahiro Yamada <[email protected]> Cc: Vincenzo Frascino <[email protected]> Cc: Will Deacon <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-10-13Revert "kbuild: disable clang's default use of -fmerge-all-constants"Nick Desaulniers1-9/+0
This reverts commit 87e0d4f0f37fb0c8c4aeeac46fff5e957738df79. -fno-merge-all-constants has been the default since clang-6; the minimum supported version of clang in the kernel is clang-10 (10.0.1). Suggested-by: Nathan Chancellor <[email protected]> Signed-off-by: Nick Desaulniers <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Tested-by: Sedat Dilek <[email protected]> Reviewed-by: Fangrui Song <[email protected]> Reviewed-by: Nathan Chancellor <[email protected]> Reviewed-by: Sedat Dilek <[email protected]> Reviewed-by: Kees Cook <[email protected]> Cc: Andrey Konovalov <[email protected]> Cc: Marco Elver <[email protected]> Cc: Miguel Ojeda <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: Daniel Borkmann <[email protected]> Cc: Masahiro Yamada <[email protected]> Cc: Vincenzo Frascino <[email protected]> Cc: Will Deacon <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Link: https://reviews.llvm.org/rL329300. Link: https://github.com/ClangBuiltLinux/linux/issues/9 Signed-off-by: Linus Torvalds <[email protected]>
2020-10-13compiler-clang: add build check for clang 10.0.1Nick Desaulniers1-0/+8
Patch series "set clang minimum version to 10.0.1", v3. Adds a compile time #error to compiler-clang.h setting the effective minimum supported version to clang 10.0.1. A separate patch has already been picked up into the Documentation/ tree also confirming the version. Next are a series of reverts. One for 32b arm is a partial revert. Then Marco suggested fixes to KASAN docs. Finally, improve the warning for GCC too as per Kees. This patch (of 7): During Plumbers 2020, we voted to just support the latest release of Clang for now. Add a compile time check for this. We plan to remove workarounds for older versions now, which will break in subtle and not so subtle ways. Suggested-by: Sedat Dilek <[email protected]> Suggested-by: Nathan Chancellor <[email protected]> Suggested-by: Kees Cook <[email protected]> Signed-off-by: Nick Desaulniers <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Tested-by: Sedat Dilek <[email protected]> Reviewed-by: Kees Cook <[email protected]> Reviewed-by: Miguel Ojeda <[email protected]> Reviewed-by: Sedat Dilek <[email protected]> Acked-by: Marco Elver <[email protected]> Acked-by: Nathan Chancellor <[email protected]> Acked-by: Sedat Dilek <[email protected]> Cc: Andrey Konovalov <[email protected]> Cc: Fangrui Song <[email protected]> Cc: Masahiro Yamada <[email protected]> Cc: Daniel Borkmann <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: Will Deacon <[email protected]> Cc: Vincenzo Frascino <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Link: https://lkml.kernel.org/r/[email protected] Link: https://github.com/ClangBuiltLinux/linux/issues/9 Link: https://github.com/ClangBuiltLinux/linux/issues/941 Signed-off-by: Linus Torvalds <[email protected]>
2020-10-13Merge tag 'overflow-v5.10-rc1' of ↵Linus Torvalds1-15/+24
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull overflow update from Kees Cook: "Just a single change to help enforce all callers are actually checking the results of the helpers" * tag 'overflow-v5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: overflow: Add __must_check attribute to check_*() helpers
2020-10-13Merge tag 'seccomp-v5.10-rc1' of ↵Linus Torvalds23-437/+397
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull seccomp updates from Kees Cook: "The bulk of the changes are with the seccomp selftests to accommodate some powerpc-specific behavioral characteristics. Additional cleanups, fixes, and improvements are also included: - heavily refactor seccomp selftests (and clone3 selftests dependency) to fix powerpc (Kees Cook, Thadeu Lima de Souza Cascardo) - fix style issue in selftests (Zou Wei) - upgrade "unknown action" from KILL_THREAD to KILL_PROCESS (Rich Felker) - replace task_pt_regs(current) with current_pt_regs() (Denis Efremov) - fix corner-case race in USER_NOTIF (Jann Horn) - make CONFIG_SECCOMP no longer per-arch (YiFei Zhu)" * tag 'seccomp-v5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (23 commits) seccomp: Make duplicate listener detection non-racy seccomp: Move config option SECCOMP to arch/Kconfig selftests/clone3: Avoid OS-defined clone_args selftests/seccomp: powerpc: Set syscall return during ptrace syscall exit selftests/seccomp: Allow syscall nr and ret value to be set separately selftests/seccomp: Record syscall during ptrace entry selftests/seccomp: powerpc: Fix seccomp return value testing selftests/seccomp: Remove SYSCALL_NUM_RET_SHARE_REG in favor of SYSCALL_RET_SET selftests/seccomp: Avoid redundant register flushes selftests/seccomp: Convert REGSET calls into ARCH_GETREG/ARCH_SETREG selftests/seccomp: Convert HAVE_GETREG into ARCH_GETREG/ARCH_SETREG selftests/seccomp: Remove syscall setting #ifdefs selftests/seccomp: mips: Remove O32-specific macro selftests/seccomp: arm64: Define SYSCALL_NUM_SET macro selftests/seccomp: arm: Define SYSCALL_NUM_SET macro selftests/seccomp: mips: Define SYSCALL_NUM_SET macro selftests/seccomp: Provide generic syscall setting macro selftests/seccomp: Refactor arch register macros to avoid xtensa special case selftests/seccomp: Use __NR_mknodat instead of __NR_mknod selftests/seccomp: Use bitwise instead of arithmetic operator for flags ...
2020-10-13Merge tag 'selinux-pr-20201012' of ↵Linus Torvalds21-499/+1130
git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux Pull selinux updates from Paul Moore: "A decent number of SELinux patches for v5.10, twenty two in total. The highlights are listed below, but all of the patches pass our test suite and merge cleanly. - A number of changes to how the SELinux policy is loaded and managed inside the kernel with the goal of improving the atomicity of a SELinux policy load operation. These changes account for the bulk of the diffstat as well as the patch count. A special thanks to everyone who contributed patches and fixes for this work. - Convert the SELinux policy read-write lock to RCU. - A tracepoint was added for audited SELinux access control events; this should help provide a more unified backtrace across kernel and userspace. - Allow the removal of security.selinux xattrs when a SELinux policy is not loaded. - Enable policy capabilities in SELinux policies created with the scripts/selinux/mdp tool. - Provide some "no sooner than" dates for the SELinux checkreqprot sysfs deprecation" * tag 'selinux-pr-20201012' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux: (22 commits) selinux: provide a "no sooner than" date for the checkreqprot removal selinux: Add helper functions to get and set checkreqprot selinux: access policycaps with READ_ONCE/WRITE_ONCE selinux: simplify away security_policydb_len() selinux: move policy mutex to selinux_state, use in lockdep checks selinux: fix error handling bugs in security_load_policy() selinux: convert policy read-write lock to RCU selinux: delete repeated words in comments selinux: add basic filtering for audit trace events selinux: add tracepoint on audited events selinux: Create new booleans and class dirs out of tree selinux: Standardize string literal usage for selinuxfs directory names selinux: Refactor selinuxfs directory populating functions selinux: Create function for selinuxfs directory cleanup selinux: permit removing security.selinux xattr before policy load selinux: fix memdup.cocci warnings selinux: avoid dereferencing the policy prior to initialization selinux: fix allocation failure check on newpolicy->sidtab selinux: refactor changing booleans selinux: move policy commit after updating selinuxfs ...
2020-10-13Merge tag 'audit-pr-20201012' of ↵Linus Torvalds2-9/+4
git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit Pull audit updates from Paul Moore: "A small set of audit patches for v5.10. There are only three patches in total, and all three are trivial fixes that don't really warrant any explanations beyond their descriptions. As usual, all three patches pass our test suite" * tag 'audit-pr-20201012' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit: audit: Remove redundant null check audit: uninitialize variable audit_sig_sid audit: change unnecessary globals into statics
2020-10-13Merge tag 'Smack-for-5.10' of git://github.com/cschaufler/smack-nextLinus Torvalds4-149/+200
Pull smack updates from Casey Schaufler: "Two minor fixes and one performance enhancement to Smack. The performance improvement is significant and the new code is more like its counterpart in SELinux. - Two kernel test robot suggested clean-ups. - Teach Smack to use the IPv4 netlabel cache. This results in a 12-14% improvement on TCP benchmarks" * tag 'Smack-for-5.10' of git://github.com/cschaufler/smack-next: Smack: Remove unnecessary variable initialization Smack: Fix build when NETWORK_SECMARK is not set Smack: Use the netlabel cache Smack: Set socket labels only once Smack: Consolidate uses of secmark into a function
2020-10-13Merge tag 'tomoyo-pr-20201012' of git://git.osdn.net/gitroot/tomoyo/tomoyo-test1Linus Torvalds1-6/+23
Pull tomoyo fix from Tetsuo HandaL "One patch to make it possible to execute usermode-driver's path" * tag 'tomoyo-pr-20201012' of git://git.osdn.net/gitroot/tomoyo/tomoyo-test1: tomoyo: Loosen pathname/domainname validation.
2020-10-13Merge tag 'printk-for-5.10' of ↵Linus Torvalds18-731/+3410
git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux Pull printk updates from Petr Mladek: "The big new thing is the fully lockless ringbuffer implementation, including the support for continuous lines. It will allow to store and read messages in any situation wihtout the risk of deadlocks and without the need of temporary per-CPU buffers. The access is still serialized by logbuf_lock. It synchronizes few more operations, for example, temporary buffer for formatting the message, syslog and kmsg_dump operations. The lock removal is being discussed and should be ready for the next release. The continuous lines are handled exactly the same way as before to avoid regressions in user space. It means that they are appended to the last message when the caller is the same. Only the last message can be extended. The data ring includes plain text of the messages. Except for an integer at the beginning of each message that points back to the descriptor ring with other metadata. The dictionary has to stay. journalctl uses it to filter the log. It allows to show messages related to a given device. The dictionary values are stored in the descriptor ring with the other metadata. This is the first part of the printk rework as discussed at Plumbers 2019, see https://lore.kernel.org/r/[email protected]. The next big step will be handling consoles by kthreads during the normal system operation. It will require special handling of situations when the kthreads could not get scheduled, for example, early boot, suspend, panic. Other changes: - Add John Ogness as a reviewer for printk subsystem. He is author of the rework and is familiar with the code and history. - Fix locking in serial8250_do_startup() to prevent lockdep report. - Few code cleanups" * tag 'printk-for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux: (27 commits) printk: Use fallthrough pseudo-keyword printk: reduce setup_text_buf size to LOG_LINE_MAX printk: avoid and/or handle record truncation printk: remove dict ring printk: move dictionary keys to dev_printk_info printk: move printk_info into separate array printk: reimplement log_cont using record extension printk: ringbuffer: add finalization/extension support printk: ringbuffer: change representation of states printk: ringbuffer: clear initial reserved fields printk: ringbuffer: add BLK_DATALESS() macro printk: ringbuffer: relocate get_data() printk: ringbuffer: avoid memcpy() on state_var printk: ringbuffer: fix setting state in desc_read() kernel.h: Move oops_in_progress to printk.h scripts/gdb: update for lockless printk ringbuffer scripts/gdb: add utils.read_ulong() docs: vmcoreinfo: add lockless printk ringbuffer vmcoreinfo printk: reduce LOG_BUF_SHIFT range for H8300 printk: ringbuffer: support dataless records ...
2020-10-14Merge tag 'drm-misc-next-fixes-2020-10-13' of ↵Dave Airlie5-131/+10
git://anongit.freedesktop.org/drm/drm-misc into drm-next One fix for a bad revert in ingenic-drm, and one fix for panfrost to increase a timeout at power up. Signed-off-by: Dave Airlie <[email protected]> From: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2020-10-13Merge tag 'x86_asm_for_v5.10' of ↵Linus Torvalds4-25/+18
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 asm updates from Borislav Petkov: "Two asm wrapper fixes: - Use XORL instead of XORQ to avoid a REX prefix and save some bytes in the .fixup section, by Uros Bizjak. - Replace __force_order dummy variable with a memory clobber to fix LLVM requiring a definition for former and to prevent memory accesses from still being cached/reordered, by Arvind Sankar" * tag 'x86_asm_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/asm: Replace __force_order with a memory clobber x86/uaccess: Use XORL %0,%0 in __get_user_asm()
2020-10-13Merge tag 'drivers-5.10-2020-10-12' of git://git.kernel.dk/linux-blockLinus Torvalds58-1269/+2091
Pull block driver updates from Jens Axboe: "Here are the driver updates for 5.10. A few SCSI updates in here too, in coordination with Martin as they depend on core block changes for the shared tag bitmap. This contains: - NVMe pull requests via Christoph: - fix keep alive timer modification (Amit Engel) - order the PCI ID list more sensibly (Andy Shevchenko) - cleanup the open by controller helper (Chaitanya Kulkarni) - use an xarray for the CSE log lookup (Chaitanya Kulkarni) - support ZNS in nvmet passthrough mode (Chaitanya Kulkarni) - fix nvme_ns_report_zones (Christoph Hellwig) - add a sanity check to nvmet-fc (James Smart) - fix interrupt allocation when too many polled queues are specified (Jeffle Xu) - small nvmet-tcp optimization (Mark Wunderlich) - fix a controller refcount leak on init failure (Chaitanya Kulkarni) - misc cleanups (Chaitanya Kulkarni) - major refactoring of the scanning code (Christoph Hellwig) - MD updates via Song: - Bug fixes in bitmap code, from Zhao Heming - Fix a work queue check, from Guoqing Jiang - Fix raid5 oops with reshape, from Song Liu - Clean up unused code, from Jason Yan - Discard improvements, from Xiao Ni - raid5/6 page offset support, from Yufen Yu - Shared tag bitmap for SCSI/hisi_sas/null_blk (John, Kashyap, Hannes) - null_blk open/active zone limit support (Niklas) - Set of bcache updates (Coly, Dongsheng, Qinglang)" * tag 'drivers-5.10-2020-10-12' of git://git.kernel.dk/linux-block: (78 commits) md/raid5: fix oops during stripe resizing md/bitmap: fix memory leak of temporary bitmap md: fix the checking of wrong work queue md/bitmap: md_bitmap_get_counter returns wrong blocks md/bitmap: md_bitmap_read_sb uses wrong bitmap blocks md/raid0: remove unused function is_io_in_chunk_boundary() nvme-core: remove extra condition for vwc nvme-core: remove extra variable nvme: remove nvme_identify_ns_list nvme: refactor nvme_validate_ns nvme: move nvme_validate_ns nvme: query namespace identifiers before adding the namespace nvme: revalidate zone bitmaps in nvme_update_ns_info nvme: remove nvme_update_formats nvme: update the known admin effects nvme: set the queue limits in nvme_update_ns_info nvme: remove the 0 lba_shift check in nvme_update_ns_info nvme: clean up the check for too large logic block sizes nvme: freeze the queue over ->lba_shift updates nvme: factor out a nvme_configure_metadata helper ...
2020-10-13Merge tag 'libata-5.10-2020-10-12' of git://git.kernel.dk/linux-blockLinus Torvalds8-21/+27
Pull libata updates from Jens Axboe: "Nothing major in here, just fixes or improvements collected over the last few months" * tag 'libata-5.10-2020-10-12' of git://git.kernel.dk/linux-block: ata: ahci: mvebu: Make SATA PHY optional for Armada 3720 MAINTAINERS: remove LIBATA PATA DRIVERS entry pata_cmd64x: Use fallthrough pseudo-keyword ahci: qoriq: enable acpi support in qoriq ahci driver sata, highbank: simplify the return expression of ahci_highbank_suspend ahci: Add Intel Rocket Lake PCH-H RAID PCI IDs
2020-10-13Merge tag 'io_uring-5.10-2020-10-12' of git://git.kernel.dk/linux-blockLinus Torvalds12-911/+1662
Pull io_uring updates from Jens Axboe: - Add blkcg accounting for io-wq offload (Dennis) - A use-after-free fix for io-wq (Hillf) - Cancelation fixes and improvements - Use proper files_struct references for offload - Cleanup of io_uring_get_socket() since that can now go into our own header - SQPOLL fixes and cleanups, and support for sharing the thread - Improvement to how page accounting is done for registered buffers and huge pages, accounting the real pinned state - Series cleaning up the xarray code (Willy) - Various cleanups, refactoring, and improvements (Pavel) - Use raw spinlock for io-wq (Sebastian) - Add support for ring restrictions (Stefano) * tag 'io_uring-5.10-2020-10-12' of git://git.kernel.dk/linux-block: (62 commits) io_uring: keep a pointer ref_node in file_data io_uring: refactor *files_register()'s error paths io_uring: clean file_data access in files_register io_uring: don't delay io_init_req() error check io_uring: clean leftovers after splitting issue io_uring: remove timeout.list after hrtimer cancel io_uring: use a separate struct for timeout_remove io_uring: improve submit_state.ios_left accounting io_uring: simplify io_file_get() io_uring: kill extra check in fixed io_file_get() io_uring: clean up ->files grabbing io_uring: don't io_prep_async_work() linked reqs io_uring: Convert advanced XArray uses to the normal API io_uring: Fix XArray usage in io_uring_add_task_file io_uring: Fix use of XArray in __io_uring_files_cancel io_uring: fix break condition for __io_uring_register() waiting io_uring: no need to call xa_destroy() on empty xarray io_uring: batch account ->req_issue and task struct references io_uring: kill callback_head argument for io_req_task_work_add() io_uring: move req preps out of io_issue_sqe() ...
2020-10-13Merge tag 'block-5.10-2020-10-12' of git://git.kernel.dk/linux-blockLinus Torvalds144-2446/+3229
Pull block updates from Jens Axboe: - Series of merge handling cleanups (Baolin, Christoph) - Series of blk-throttle fixes and cleanups (Baolin) - Series cleaning up BDI, seperating the block device from the backing_dev_info (Christoph) - Removal of bdget() as a generic API (Christoph) - Removal of blkdev_get() as a generic API (Christoph) - Cleanup of is-partition checks (Christoph) - Series reworking disk revalidation (Christoph) - Series cleaning up bio flags (Christoph) - bio crypt fixes (Eric) - IO stats inflight tweak (Gabriel) - blk-mq tags fixes (Hannes) - Buffer invalidation fixes (Jan) - Allow soft limits for zone append (Johannes) - Shared tag set improvements (John, Kashyap) - Allow IOPRIO_CLASS_RT for CAP_SYS_NICE (Khazhismel) - DM no-wait support (Mike, Konstantin) - Request allocation improvements (Ming) - Allow md/dm/bcache to use IO stat helpers (Song) - Series improving blk-iocost (Tejun) - Various cleanups (Geert, Damien, Danny, Julia, Tetsuo, Tian, Wang, Xianting, Yang, Yufen, yangerkun) * tag 'block-5.10-2020-10-12' of git://git.kernel.dk/linux-block: (191 commits) block: fix uapi blkzoned.h comments blk-mq: move cancel of hctx->run_work to the front of blk_exit_queue blk-mq: get rid of the dead flush handle code path block: get rid of unnecessary local variable block: fix comment and add lockdep assert blk-mq: use helper function to test hw stopped block: use helper function to test queue register block: remove redundant mq check block: invoke blk_mq_exit_sched no matter whether have .exit_sched percpu_ref: don't refer to ref->data if it isn't allocated block: ratelimit handle_bad_sector() message blk-throttle: Re-use the throtl_set_slice_end() blk-throttle: Open code __throtl_de/enqueue_tg() blk-throttle: Move service tree validation out of the throtl_rb_first() blk-throttle: Move the list operation after list validation blk-throttle: Fix IO hang for a corner case blk-throttle: Avoid tracking latency if low limit is invalid blk-throttle: Avoid getting the current time if tg->last_finish_time is 0 blk-throttle: Remove a meaningless parameter for throtl_downgrade_state() block: Remove redundant 'return' statement ...
2020-10-13Merge tag 'x86_urgent_for_v5.10-rc1' of ↵Linus Torvalds2-4/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Borislav Petkov: - Fix the #DE oops message string format which confused tools parsing crash information (Thomas Gleixner) - Remove an unused variable in the UV5 code which was triggering a build warning with clang (Mike Travis) * tag 'x86_urgent_for_v5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/platform/uv: Remove unused variable in UV5 NMI handler x86/traps: Fix #DE Oops message regression
2020-10-13dt: Remove booting-without-of.rstRob Herring10-1586/+175
booting-without-of.rst is an ancient document that first outlined Flattened DeviceTree on PowerPC initially. The DT world has evolved a lot in the 15 years since and booting-without-of.rst is pretty stale. The name of the document itself is confusing if you don't understand the evolution from real 'OpenFirmware'. Most of what booting-without-of.rst contains is now in the DT specification (which evolved out of the ePAPR). The few things that weren't documented in the DT specification are now. All that remains is the boot entry details, so let's move these to arch specific documents. The exception is arm which already has the same details documented. Cc: Frank Rowand <[email protected]> Cc: Mauro Carvalho Chehab <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Thomas Bogendoerfer <[email protected]> Cc: Jonathan Corbet <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Yoshinori Sato <[email protected]> Cc: Rich Felker <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Acked-by: Benjamin Herrenschmidt <[email protected]> Acked-by: Borislav Petkov <[email protected]> Acked-by: Michael Ellerman <[email protected]> (powerpc) Signed-off-by: Rob Herring <[email protected]>
2020-10-13x86/platform/uv: Remove unused variable in UV5 NMI handlerMike Travis1-3/+0
Remove an unused variable. Signed-off-by: Mike Travis <[email protected]> Signed-off-by: Borislav Petkov <[email protected]> Link: https://lkml.kernel.org/r/[email protected]
2020-10-13x86/traps: Fix #DE Oops message regressionThomas Gleixner1-1/+1
The conversion of #DE to the idtentry mechanism introduced a change in the Ooops message which confuses tools which parse crash information in dmesg. Remove the underscore from 'divide_error' to restore previous behaviour. Fixes: 9d06c4027f21 ("x86/entry: Convert Divide Error to IDTENTRY") Reported-by: Dmitry Vyukov <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Cc: [email protected] Link: https://lore.kernel.org/r/CACT4Y+bTZFkuZd7+bPArowOv-7Die+WZpfOWnEO_Wgs3U59+oA@mail.gmail.com
2020-10-13Merge tag 'hwmon-for-v5.10' of ↵Linus Torvalds167-1022/+4576
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon updates from Guenter Roeck: "New driver and chip support: - Moortec MR75203 PVT controller - MPS Multi-phase mp2975 controller - ADM1266 - Zen3 CPUs - Intel MAX 10 BMC Enhancements: - Support for rated attributes in hwmon core - MAX20730: - Device monitoring via debugfs - VOUT readin adjustment vie devicetree bindings - LM75: - Devicetree support - Regulator support - Improved accumulationm logic in amd_energy driver - Added fan sensor to gsc-hwmon driver - Support for simplified I2C probing Various other minor fixes and improvements" * tag 'hwmon-for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (64 commits) hwmon: (pmbus/max20730) adjust the vout reading given voltage divider dt-bindings: hwmon: max20730: adding device tree doc for max20730 hwmon: Add hardware monitoring driver for Moortec MR75203 PVT controller hwmon: Add DT bindings schema for PVT controller dt-bindings: hwmon: Add the +vs supply to the lm75 bindings dt-bindings: hwmon: Convert lm75 bindings to yaml docs: hwmon: (ltc2945) update datasheet link hwmon: (mlxreg-fan) Fix double "Mellanox" hwmon: (pmbus/max20730) add device monitoring via debugfs hwmon: (pmbus/max34440) Fix OC fault limits hwmon: (bt1-pvt) Wait for the completion with timeout hwmon: (bt1-pvt) Cache current update timeout hwmon: (bt1-pvt) Test sensor power supply on probe hwmon: (lm75) Add regulator support hwmon: Add hwmon driver for Intel MAX 10 BMC dt-bindings: Add MP2975 voltage regulator device hwmon: (pmbus) Add support for MPS Multi-phase mp2975 controller hwmon: (tmp513) fix spelling typo in comments hwmon: (amd_energy) Update driver documentation hwmon: (amd_energy) Improve the accumulation logic ...
2020-10-13Merge tag 'gpio-v5.10-1' of ↵Linus Torvalds46-824/+2848
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO updates from Linus Walleij: "This time very little driver changes but lots of core changes. We have some interesting cooperative work for ARM and Intel alike, making the GPIO subsystem more and more suitable for industrial systems and the like, in addition to the in-kernel users. We touch driver core (device properties) and lib/* by adding one simple string array free function, these are authored by Andy Shevchenko who is a well known and recognized core helpers maintainers so this should be fine. We also see some Android GKI-related modularization in the MXC drivers. Core changes: - The big core change is the updated (v2) userspace character device API. This corrects badly designed 64-bit alignment around the line events. We also add the debounce request feature. This echoes the often quotes passage from Frederick Brooks "The mythical man-month" to always throw one away, which we have seen before in things such as V4L2. So we put in a new one and deprecate and obsolete the old one. - All example tools in tools/gpio/* are migrated to the new API to set a good example. The libgpiod userspace library has been augmented to use this new API pretty much from day 1. - Some misc API hardening by using strn* function calls has been added as well. - Use the simpler IDA interface for GPIO chip instance enumeration. - Add device core function for counting string arrays in device properties. - Provide a generic library function kfree_strarray() that can be used throughout the kernel. Driver enhancements: - The DesignWare dwapb-gpio driver has been enhanced and now uses the IRQ handling in the gpiolib core. - The mockup and aggregator drivers have seen some substantial code clean-up and now use more of the core kernel inftrastructure. - Misc cleanups using dev_err_probe(). - The MXC drivers (Freescale/NXP) can now be built modularized, which makes modularized GKI Android kernels happy" * tag 'gpio-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (73 commits) gpiolib: Update header block in gpiolib-cdev.h gpiolib: cdev: switch from kstrdup() to kstrndup() docs: gpio: add a new document to its index.rst gpio: pca953x: Add support for the NXP PCAL9554B/C tools: gpio: add debounce support to gpio-event-mon tools: gpio: add multi-line monitoring to gpio-event-mon tools: gpio: port gpio-event-mon to v2 uAPI tools: gpio: port gpio-hammer to v2 uAPI tools: gpio: rename nlines to num_lines tools: gpio: port gpio-watch to v2 uAPI tools: gpio: port lsgpio to v2 uAPI gpio: uapi: document uAPI v1 as deprecated gpiolib: cdev: support setting debounce gpiolib: cdev: support GPIO_V2_LINE_SET_VALUES_IOCTL gpiolib: cdev: support GPIO_V2_LINE_SET_CONFIG_IOCTL gpiolib: cdev: support edge detection for uAPI v2 gpiolib: cdev: support GPIO_V2_GET_LINEINFO_IOCTL and GPIO_V2_GET_LINEINFO_WATCH_IOCTL gpiolib: cdev: support GPIO_V2_GET_LINE_IOCTL and GPIO_V2_LINE_GET_VALUES_IOCTL gpiolib: add build option for CDEV v1 ABI gpiolib: make cdev a build option ...
2020-10-13Merge tag 'spi-v5.10' of ↵Linus Torvalds51-1277/+2913
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi updates from Mark Brown: "There's quite a lot of changes for SPI in this release but none in the core, they're all mostly small driver updates and additions. Some of the more notable changes include: - A huge set of cleanups, optimizations and improvements for the DesignWare driver from Serge Semin finishing up the work started last release. - Conversion of the Zynq gqspi driver to spi-mem. - Support for Baikal T1, Broadcom BCMSTB 7445, and Renesas R8A7742" * tag 'spi-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (137 commits) spi: cadence: Add SPI transfer delays spi: dw: Add Baikal-T1 SPI Controller bindings spi: dw: Add Baikal-T1 SPI Controller glue driver spi: dw: Add poll-based SPI transfers support spi: dw: Introduce max mem-ops SPI bus frequency setting spi: dw: Add memory operations support spi: dw: Add generic DW SSI status-check method spi: dw: Move num-of retries parameter to the header file spi: dw: Explicitly de-assert CS on SPI transfer completion spi: dw: De-assert chip-select on reset spi: dw: Discard chip enabling on DMA setup error spi: dw: Unmask IRQs after enabling the chip spi: dw: Perform IRQ setup in a dedicated function spi: dw: Refactor IRQ-based SPI transfer procedure spi: dw: Refactor data IO procedure spi: dw: Add DW SPI controller config structure spi: dw: Update Rx sample delay in the config function spi: dw: Simplify the SPI bus speed config procedure spi: dw: Update SPI bus speed in a config function spi: dw: Detach SPI device specific CR0 config method ...
2020-10-13Merge tag 'regulator-v5.10' of ↵Linus Torvalds77-1033/+3498
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator Pull regulator updates from Mark Brown: "This is a fairly small release for the regulator API, there's quite a few new devices supported and some important improvements around coupled regulators in the core but mostly just small fixes and improvements otherwise. Summary: - Fixes and cleanups around the handling of coupled regulators. - A special driver for some Raspberry Pi panels with some unusually custom stuff around them. - Support for Qualcomm PM660/PM660L, PM8950 and PM8953, Richtek RT4801 and RTMV20, Rohm BD9576MUF and BD9573MUF" * tag 'regulator-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (89 commits) regulator: bd9576: Fix print regulator: bd9576: fix regulator binfdings dt node names dt-bindings: regulator: document pm8950 and pm8953 smd regulators regulator: qcom_smd: add pm8953 regulators regulator: Make constraint debug processing conditional on DEBUG regulator: qcom: labibb: Constify static structs regulator: dt-bindings: Document the PM660/PM660L PMICs entries regulator: qcom_smd: Add PM660/PM660L regulator support regulator: dt-bindings: Document the PM660/660L SPMI PMIC entries regulator: qcom_spmi: Add PM660/PM660L regulators regulator: qcom_spmi: Add support for new regulator types regulator: core: Enlarge max OF property name length to 64 chars regulator: tps65910: use regmap accessors regulator: rtmv20: Add missing regcache cache only before marked as dirty regulator: rtmv20: Update DT binding document and property name parsing regulator: rtmv20: Add DT-binding document for Richtek RTMV20 regulator: rtmv20: Adds support for Richtek RTMV20 load switch regulator regulator: resolve supply after creating regulator regulator: print symbolic errors in kernel messages regulator: print state at boot ...
2020-10-13Merge tag 'regmap-v5.10' of ↵Linus Torvalds9-8/+954
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap Pull regmap updates from Mark Brown: "Quite a busy release for regmap, mostly support for new features useful on fairly small subsets of devices. The user visible features are: - A new API for registering large numbers of regmap fields at once. - Support for Intel AVMM buses connected via SPI. - Support for 12/20 address/value layouts. - Support for yet another scheme for acknowledging interrupts used on some Qualcomm devices" * tag 'regmap-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: irq: Add support to clear ack registers regmap: add support to regmap_field_bulk_alloc/free apis regmap: destroy mutex (if used) in regmap_exit() regmap: debugfs: use semicolons rather than commas to separate statements regmap: debugfs: Fix more error path regressions regmap: Add support for 12/20 register formatting regmap: Add can_sleep configuration option regmap: soundwire: remove unused header mod_devicetable.h regmap: Use flexible sleep regmap: add Intel SPI Slave to AVMM Bus Bridge support
2020-10-13Merge tag 'media/v5.10-1' of ↵Linus Torvalds1002-18129/+26154
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - the usbvision driver was dropped from staging - the Zoran driver were re-added at staging. It gained lots of improvements, and was converted to use videobuf2 API - a new virtual driver (vidtv) was added in order to allow testing the digital TV framework and APIs - the media uAPI documentation gained a glossary with commonly used terms, helping to simplify some parts of the docs - more cleanups at the atomisp driver - Mediatek VPU gained support for MT8183 - added support for codecs with supports doing colorspace conversion (CSC) - support for CSC API was added at vivid and rksip1 drivers - added a helper core support and uAPI for better supporting H.264 codecs - added support for Renesas R8A774E1 - use the new SPDX GFDL-1.1-no-invariants-or-later license on media uAPI docs, instead of a license text - Venus driver has gained VP9 codec support - lots of other cleanups and driver improvements * tag 'media/v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (555 commits) media: dvb-frontends/drxk_hard.c: fix uninitialized variable warning media: tvp7002: fix uninitialized variable warning media: s5k5baf: drop 'data' field in struct s5k5baf_fw media: dt-bindings: media: venus: Add an optional power domain for perf voting media: rcar-vin: rcar-dma: Fix setting VNIS_REG for RAW8 formats media: staging: rkisp1: uapi: Do not use BIT() macro media: v4l2-mem2mem: Fix spurious v4l2_m2m_buf_done media: usbtv: Fix refcounting mixup media: zoran.rst: place it at the right place this time media: add Zoran cardlist media: admin-guide: update cardlists media: siano: rename a duplicated card string media: zoran: move documentation file to the right place media: atomisp: fixes build breakage for ISP2400 due to a cleanup media: zoran: fix mixed case on vars media: zoran: get rid of an unused var media: zoran: use upper case for card types media: zoran: fix sparse warnings media: zoran: fix smatch warning media: zoran: update TODO ...
2020-10-13ALSA: hda/hdmi: fix incorrect locking in hdmi_pcm_closeKai Vehmanen1-8/+12
A race exists between closing a PCM and update of ELD data. In hdmi_pcm_close(), hinfo->nid value is modified without taking spec->pcm_lock. If this happens concurrently while processing an ELD update in hdmi_pcm_setup_pin(), converter assignment may be done incorrectly. This bug was found by hitting a WARN_ON in snd_hda_spdif_ctls_assign() in a HDMI receiver connection stress test: [2739.684569] WARNING: CPU: 5 PID: 2090 at sound/pci/hda/patch_hdmi.c:1898 check_non_pcm_per_cvt+0x41/0x50 [snd_hda_codec_hdmi] ... [2739.684707] Call Trace: [2739.684720] update_eld+0x121/0x5a0 [snd_hda_codec_hdmi] [2739.684736] hdmi_present_sense+0x21e/0x3b0 [snd_hda_codec_hdmi] [2739.684750] check_presence_and_report+0x81/0xd0 [snd_hda_codec_hdmi] [2739.684842] intel_audio_codec_enable+0x122/0x190 [i915] Fixes: 42b2987079ec ("ALSA: hda - hdmi playback without monitor in dynamic pcm bind mode") Signed-off-by: Kai Vehmanen <[email protected]> Cc: <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Takashi Iwai <[email protected]>
2020-10-13Merge tag 'mmc-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmcLinus Torvalds105-404/+1743
Pull MMC updates from Ulf Hansson: "MMC core: - Export SDIO revision and info strings to userspace - Add support for specifying mmc/mmcblk index via mmc aliases in DT MMC host: - Enable support for async probe for all mmc host drivers - Enable compile testing of multiple host drivers - dw_mmc: Enable the Synopsys DesignWare driver for RISCV and CSKY - mtk-sd: Fixup support for CQHCI - owl-mmc: Add support for the actions,s700-mmc variant - renesas_sdhi: Fix regression (temporary) for re-insertion of SD cards - renesas_sdhi: Add support for the r8a774e1 variant - renesas_sdhi/tmio: Improvements for tunings - renesas_sdhi/tmio: Rework support for reset of controller - sdhci-acpi: Fix HS400 tuning for devices with invalid presets on AMDI0040 - sdhci_am654: Improve support for tunings - sdhci_am654: Add support for input tap delays - sdhci_am654: Add workaround for card detect debounce timer - sdhci-am654: Add support for the TI's J7200 variants - sdhci-esdhc-imx: Fix support for manual tuning - sdhci-iproc: Enable support for eMMC DDR 3.3V for bcm2711 - sdhci-msm: Fix stability issues with HS400 for sc7180 - sdhci-of-sparx5: Add Sparx5 SoC eMMC driver - sdhci-of-esdhc: Fixup reference clock source selection - sdhci-pci: Add LTR support for some Intel BYT controllers - sdhci-pci-gli: Add CQHCI Support for GL9763E" * tag 'mmc-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (91 commits) mmc: sdhci_am654: Fix module autoload mmc: renesas_sdhi: workaround a regression when reinserting SD cards mmc: sdhci-pci-gli: Add CQHCI Support for GL9763E mmc: sdhci-acpi: AMDI0040: Set SDHCI_QUIRK2_PRESET_VALUE_BROKEN mmc: sdhci_am654: Enable tuning for SDR50 mmc: sdhci_am654: Add support for software tuning mmc: sdhci_am654: Add support for input tap delay mmc: sdhci_am654: Fix hard coded otap delay array size dt-bindings: mmc: sdhci-am654: Add documentation for input tap delay dt-bindings: mmc: sdhci-am654: Convert sdhci-am654 controller documentation to json schema mmc: sdhci-of-esdhc: fix reference clock source selection mmc: host: fix depends for MMC_MESON_GX w/ COMPILE_TEST mmc: sdhci-s3c: hide forward declaration of of_device_id behind CONFIG_OF mmc: sdhci: fix indentation mistakes mmc: moxart: remove unneeded check for drvdata mmc: renesas_sdhi: drop local flag for tuning mmc: rtsx_usb_sdmmc: simplify the return expression of sd_change_phase() mmc: core: document mmc_hw_reset() mmc: mediatek: Drop pointer to mmc_host from msdc_host dt-bindings: mmc: owl: add compatible string actions,s700-mmc ...
2020-10-13Merge tag 'erofs-for-5.10-rc1' of ↵Linus Torvalds4-32/+22
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs Pull erofs updates from Gao Xiang: "This cycle addresses a reported permission issue with overlay due to a duplicated permission check for "trusted." xattrs. Also, a REQ_RAHEAD flag is added now to all readahead requests in order to trace readahead I/Os. The others are random cleanups. All commits have been tested and have been in linux-next as well. Summary: - fix an issue which can cause overlay permission problem due to duplicated permission check for "trusted." xattrs; - add REQ_RAHEAD flag to readahead requests for blktrace; - several random cleanup" * tag 'erofs-for-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs: erofs: remove unnecessary enum entries erofs: add REQ_RAHEAD flag to readahead requests erofs: fold in should_decompress_synchronously() erofs: avoid unnecessary variable `err' erofs: remove unneeded parameter erofs: avoid duplicated permission check for "trusted." xattrs
2020-10-13Merge tag 'for-5.10-tag' of ↵Linus Torvalds55-1993/+2719
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux Pull btrfs updates from David Sterba: "Mostly core updates with a few user visible bits and fixes. Hilights: - fsync performance improvements - less contention of log mutex (throughput +4%, latency -14%, dbench with 32 clients) - skip unnecessary commits for link and rename (throughput +6%, latency -30%, rename latency -75%, dbench with 16 clients) - make fast fsync wait only for writeback (throughput +10..40%, runtime -1..-20%, dbench with 1 to 64 clients on various file/block sizes) - direct io is now implemented using the iomap infrastructure, that's the main part, we still have a workaround that requires an iomap API update, coming in 5.10 - new sysfs exports: - information about the exclusive filesystem operation status (balance, device add/remove/replace, ...) - supported send stream version Core: - use ticket space reservations for data, fair policy using the same infrastructure as metadata - preparatory work to switch locking from our custom tree locks to standard rwsem, now the locking context is propagated to all callers, actual switch is expected to happen in the next dev cycle - seed device structures are now using list API - extent tracepoints print proper tree id - unified range checks for extent buffer helpers - send: avoid using temporary buffer for copying data - remove unnecessary RCU protection from space infos - remove unused readpage callback for metadata, enabling several cleanups - replace indirect function calls for end io hooks and remove extent_io_ops completely Fixes: - more lockdep warning fixes - fix qgroup reservation for delayed inode and an occasional reservation leak for preallocated files - fix device replace of a seed device - fix metadata reservation for fallocate that leads to transaction aborts - reschedule if necessary when logging directory items or when cloning lots of extents - tree-checker: fix false alert caused by legacy btrfs root item - send: fix rename/link conflicts for orphanized inodes - properly initialize device stats for seed devices - skip devices without magic signature when mounting Other: - error handling improvements, BUG_ONs replaced by proper handling, fuzz fixes - various function parameter cleanups - various W=1 cleanups - error/info messages improved Mishaps: - commit 62cf5391209a ("btrfs: move btrfs_rm_dev_replace_free_srcdev outside of all locks") is a rebase leftover after the patch got merged to 5.9-rc8 as a466c85edc6f ("btrfs: move btrfs_rm_dev_replace_free_srcdev outside of all locks"), the remaining part is trivial and the patch is in the middle of the series so I'm keeping it there instead of rebasing" * tag 'for-5.10-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (161 commits) btrfs: rename BTRFS_INODE_ORDERED_DATA_CLOSE flag btrfs: annotate device name rcu_string with __rcu btrfs: skip devices without magic signature when mounting btrfs: cleanup cow block on error btrfs: remove BTRFS_INODE_READDIO_NEED_LOCK fs: remove no longer used dio_end_io() btrfs: return error if we're unable to read device stats btrfs: init device stats for seed devices btrfs: remove struct extent_io_ops btrfs: call submit_bio_hook directly for metadata pages btrfs: stop calling submit_bio_hook for data inodes btrfs: don't opencode is_data_inode in end_bio_extent_readpage btrfs: call submit_bio_hook directly in submit_one_bio btrfs: remove extent_io_ops::readpage_end_io_hook btrfs: replace readpage_end_io_hook with direct calls btrfs: send, recompute reference path after orphanization of a directory btrfs: send, orphanize first all conflicting inodes when processing references btrfs: tree-checker: fix false alert caused by legacy btrfs root item btrfs: use unaligned helpers for stack and header set/get helpers btrfs: free-space-cache: use unaligned helpers to access data ...
2020-10-13Merge tag 'dlm-5.10' of ↵Linus Torvalds6-279/+260
git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm Pull dlm updates from David Teigland: "This set continues the ongoing rework of the low level communication layer in the dlm. The focus here is on improvements to connection handling, and reworking the receiving of messages" * tag 'dlm-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm: fs: dlm: fix race in nodeid2con fs: dlm: rework receive handling fs: dlm: disallow buffer size below default fs: dlm: handle range check as callback fs: dlm: fix mark per nodeid setting fs: dlm: remove lock dependency warning fs: dlm: use free_con to free connection fs: dlm: handle possible othercon writequeues fs: dlm: move free writequeue into con free fs: dlm: fix configfs memory leak fs: dlm: fix dlm_local_addr memory leak fs: dlm: make connection hash lockless fs: dlm: synchronize dlm before shutdown