- 04 Feb, 2020 15 commits
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Davidlohr Bueso authored
pipelined_send() and pipelined_receive() are identical, so merge them. [manfred@colorfullife.com: add changelog] Link: http://lkml.kernel.org/r/20191020123305.14715-3-manfred@colorfullife.comSigned-off-by:
Davidlohr Bueso <dave@stgolabs.net> Signed-off-by:
Manfred Spraul <manfred@colorfullife.com> Cc: <1vier1@web.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Waiman Long <longman@redhat.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Manfred Spraul authored
When adding the _{acquire|release|relaxed}() variants of some atomic operations, it was forgotten to update Documentation/memory_barrier.txt: smp_mb__{before,after}_atomic() is now intended for all RMW operations that do not imply a memory barrier. 1) smp_mb__before_atomic(); atomic_add(); 2) smp_mb__before_atomic(); atomic_xchg_relaxed(); 3) smp_mb__before_atomic(); atomic_fetch_add_relaxed(); Invalid would be: smp_mb__before_atomic(); atomic_set(); In addition, the patch splits the long sentence into multiple shorter sentences. Link: http://lkml.kernel.org/r/20191020123305.14715-2-manfred@colorfullife.com Fixes: 654672d4 ("locking/atomics: Add _{acquire|release|relaxed}() variants of some atomic operations") Signed-off-by:Waiman Long <longman@redhat.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Will Deacon <will.deacon@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: <1vier1@web.de> Signed-off-by:
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David Hildenbrand authored
The callers are only interested in the actual zone, they don't care about boundaries. Return the zone instead to simplify. Link: http://lkml.kernel.org/r/20200110183308.11849-1-david@redhat.comSigned-off-by:
David Hildenbrand <david@redhat.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Oscar Salvador <osalvador@suse.de> Signed-off-by:
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David Hildenbrand authored
Let's drop the basically unused section stuff and simplify. Also, let's use a shorter variant to calculate the number of pages to the next section boundary. Link: http://lkml.kernel.org/r/20191006085646.5768-11-david@redhat.comSigned-off-by:
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David Hildenbrand authored
Get rid of the unnecessary local variables. Link: http://lkml.kernel.org/r/20191006085646.5768-10-david@redhat.comSigned-off-by:
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David Hildenbrand authored
If we have holes, the holes will automatically get detected and removed once we remove the next bigger/smaller section. The extra checks can go. Link: http://lkml.kernel.org/r/20191006085646.5768-9-david@redhat.comSigned-off-by:
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David Hildenbrand authored
With shrink_pgdat_span() out of the way, we now always have a valid zone. Link: http://lkml.kernel.org/r/20191006085646.5768-8-david@redhat.comSigned-off-by:
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David Hildenbrand authored
Let's poison the pages similar to when adding new memory in sparse_add_section(). Also call remove_pfn_range_from_zone() from memunmap_pages(), so we can poison the memmap from there as well. Link: http://lkml.kernel.org/r/20191006085646.5768-7-david@redhat.comSigned-off-by:
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Aneesh Kumar K.V authored
Patch series "mm/memory_hotplug: Shrink zones before removing memory", v6. This series fixes the access of uninitialized memmaps when shrinking zones/nodes and when removing memory. Also, it contains all fixes for crashes that can be triggered when removing certain namespace using memunmap_pages() - ZONE_DEVICE, reported by Aneesh. We stop trying to shrink ZONE_DEVICE, as it's buggy, fixing it would be more involved (we don't have SECTION_IS_ONLINE as an indicator), and shrinking is only of limited use (set_zone_contiguous() cannot detect the ZONE_DEVICE as contiguous). We continue shrinking !ZONE_DEVICE zones, however, I reduced the amount of code to a minimum. Shrinking is especially necessary to keep zone->contiguous set where possible, especially, on memory unplug of DIMMs at zone boundaries. -------------------------------------------------------------------------- Zones are now properly shrunk when offlining memory blocks or when onlining failed. This allows to properly shrink zones on memory unplug even if the separate memory blocks of a DIMM were onlined to different zones or re-onlined to a different zone after offlining. Example: :/# cat /proc/zoneinfo Node 1, zone Movable spanned 0 present 0 managed 0 :/# echo "online_movable" > /sys/devices/system/memory/memory41/state :/# echo "online_movable" > /sys/devices/system/memory/memory43/state :/# cat /proc/zoneinfo Node 1, zone Movable spanned 98304 present 65536 managed 65536 :/# echo 0 > /sys/devices/system/memory/memory43/online :/# cat /proc/zoneinfo Node 1, zone Movable spanned 32768 present 32768 managed 32768 :/# echo 0 > /sys/devices/system/memory/memory41/online :/# cat /proc/zoneinfo Node 1, zone Movable spanned 0 present 0 managed 0 This patch (of 6): The third argument is actually number of pages. Change the variable name from size to nr_pages to indicate this better. No functional change in this patch. Link: http://lkml.kernel.org/r/20191006085646.5768-3-david@redhat.comSigned-off-by:Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Signed-off-by:
Pankaj Gupta <pagupta@redhat.com> Reviewed-by:
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David Hildenbrand authored
Let's move it to the header and use the shorter variant from mm/page_alloc.c (the original one will also check "__highest_present_section_nr + 1", which is not necessary). While at it, make the section_nr in next_pfn() const. In next_pfn(), we now return section_nr_to_pfn(-1) instead of -1 once we exceed __highest_present_section_nr, which doesn't make a difference in the caller as it is big enough (>= all sane end_pfn). Link: http://lkml.kernel.org/r/20200113144035.10848-3-david@redhat.comSigned-off-by:
Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Baoquan He <bhe@redhat.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: "Jin, Zhi" <zhi.jin@intel.com> Cc: "Kirill A. Shutemov" <kirill@shutemov.name> Cc: Mel Gorman <mgorman@suse.de> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Oscar Salvador <osalvador@suse.de> Cc: Pavel Tatashin <pasha.tatashin@oracle.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by:
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David Hildenbrand authored
Let's update the pfn manually whenever we continue the loop. This makes the code easier to read but also less error prone (and we can directly fix one issue). When overlap_memmap_init() returns true, pfn is updated to "memblock_region_memory_end_pfn(r)". So it already points at the *next* pfn to process. Incrementing the pfn another time is wrong, we might leave one uninitialized. I spotted this by inspecting the code, so I have no idea if this is relevant in practise (with kernelcore=mirror). Link: http://lkml.kernel.org/r/20200113144035.10848-2-david@redhat.com Fixes: a9a9e77f ("mm: move mirrored memory specific code outside of memmap_init_zone") Signed-off-by:
Alexander Duyck <alexander.h.duyck@linux.intel.com> Cc: Pavel Tatashin <pasha.tatashin@oracle.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Oscar Salvador <osalvador@suse.de> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: Baoquan He <bhe@redhat.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Mel Gorman <mgorman@suse.de> Cc: "Jin, Zhi" <zhi.jin@intel.com> Cc: Michal Hocko <mhocko@suse.com> Signed-off-by:
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David Hildenbrand authored
Let's make sure that all memory holes are actually marked PageReserved(), that page_to_pfn() produces reliable results, and that these pages are not detected as "mmap" pages due to the mapcount. E.g., booting a x86-64 QEMU guest with 4160 MB: [ 0.010585] Early memory node ranges [ 0.010586] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.010588] node 0: [mem 0x0000000000100000-0x00000000bffdefff] [ 0.010589] node 0: [mem 0x0000000100000000-0x0000000143ffffff] max_pfn is 0x144000. Before this change: [root@localhost ~]# ./page-types -r -a 0x144000, flags page-count MB symbolic-flags long-symbolic-flags 0x0000000000000800 16384 64 ___________M_______________________________ mmap total 16384 64 After this change: [root@localhost ~]# ./page-types -r -a 0x144000, flags page-count MB symbolic-flags long-symbolic-flags 0x0000000100000000 16384 64 ___________________________r_______________ reserved total 16384 64 IOW, especially the unavailable physical memory ("memory hole") in the last section would not get properly marked PageReserved() and is indicated to be "mmap" memory. Drop the trace of that function from include/linux/mm.h - nobody else needs it, and rename it accordingly. Note: The fake zone/node might not be covered by the zone/node span. This is not an urgent issue (for now, we had the same node/zone due to the zeroing). We'll need a clean way to mark memory holes (e.g., using a page type PageHole() if possible or a fake ZONE_INVALID) and eventually stop marking these memory holes PageReserved(). Link: http://lkml.kernel.org/r/20191211163201.17179-4-david@redhat.comSigned-off-by: -
David Hildenbrand authored
If max_pfn does not fall onto a section boundary, it is possible to inspect PFNs up to max_pfn, and PFNs above max_pfn, however, max_pfn itself can't be inspected. We can have a valid (and online) memmap at and above max_pfn if max_pfn is not aligned to a section boundary. The whole early section has a memmap and is marked online. Being able to inspect the state of these PFNs is valuable for debugging, especially because max_pfn can change on memory hotplug and expose these memmaps. Also, querying page flags via "./page-types -r -a 0x144001," (tools/vm/page-types.c) inside a x86-64 guest with 4160MB under QEMU results in an (almost) endless loop in user space, because the end is not detected properly when starting after max_pfn. Instead, let's allow to inspect all pages in the highest section and return 0 directly if we try to access pages above that section. While at it, check the count before adjusting it, to avoid masking user errors. Link: http://lkml.kernel.org/r/20191211163201.17179-3-david@redhat.comSigned-off-by:
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David Hildenbrand authored
Patch series "mm: fix max_pfn not falling on section boundary", v2. Playing with different memory sizes for a x86-64 guest, I discovered that some memmaps (highest section if max_mem does not fall on the section boundary) are marked as being valid and online, but contain garbage. We have to properly initialize these memmaps. Looking at /proc/kpageflags and friends, I found some more issues, partially related to this. This patch (of 3): If max_pfn is not aligned to a section boundary, we can easily run into BUGs. This can e.g., be triggered on x86-64 under QEMU by specifying a memory size that is not a multiple of 128MB (e.g., 4097MB, but also 4160MB). I was told that on real HW, we can easily have this scenario (esp., one of the main reasons sub-section hotadd of devmem was added). The issue is, that we have a valid memmap (pfn_valid()) for the whole section, and the whole section will be marked "online". pfn_to_online_page() will succeed, but the memmap contains garbage. E.g., doing a "./page-types -r -a 0x144001" when QEMU was started with "-m 4160M" - (see tools/vm/page-types.c): [ 200.476376] BUG: unable to handle page fault for address: fffffffffffffffe [ 200.477500] #PF: supervisor read access in kernel mode [ 200.478334] #PF: error_code(0x0000) - not-present page [ 200.479076] PGD 59614067 P4D 59614067 PUD 59616067 PMD 0 [ 200.479557] Oops: 0000 [#4] SMP NOPTI [ 200.479875] CPU: 0 PID: 603 Comm: page-types Tainted: G D W 5.5.0-rc1-next-20191209 #93 [ 200.480646] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu4 [ 200.481648] RIP: 0010:stable_page_flags+0x4d/0x410 [ 200.482061] Code: f3 ff 41 89 c0 48 b8 00 00 00 00 01 00 00 00 45 84 c0 0f 85 cd 02 00 00 48 8b 53 08 48 8b 2b 48f [ 200.483644] RSP: 0018:ffffb139401cbe60 EFLAGS: 00010202 [ 200.484091] RAX: fffffffffffffffe RBX: fffffbeec5100040 RCX: 0000000000000000 [ 200.484697] RDX: 0000000000000001 RSI: ffffffff9535c7cd RDI: 0000000000000246 [ 200.485313] RBP: ffffffffffffffff R08: 0000000000000000 R09: 0000000000000000 [ 200.485917] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000144001 [ 200.486523] R13: 00007ffd6ba55f48 R14: 00007ffd6ba55f40 R15: ffffb139401cbf08 [ 200.487130] FS: 00007f68df717580(0000) GS:ffff9ec77fa00000(0000) knlGS:0000000000000000 [ 200.487804] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 200.488295] CR2: fffffffffffffffe CR3: 0000000135d48000 CR4: 00000000000006f0 [ 200.488897] Call Trace: [ 200.489115] kpageflags_read+0xe9/0x140 [ 200.489447] proc_reg_read+0x3c/0x60 [ 200.489755] vfs_read+0xc2/0x170 [ 200.490037] ksys_pread64+0x65/0xa0 [ 200.490352] do_syscall_64+0x5c/0xa0 [ 200.490665] entry_SYSCALL_64_after_hwframe+0x49/0xbe But it can be triggered much easier via "cat /proc/kpageflags > /dev/null" after cold/hot plugging a DIMM to such a system: [root@localhost ~]# cat /proc/kpageflags > /dev/null [ 111.517275] BUG: unable to handle page fault for address: fffffffffffffffe [ 111.517907] #PF: supervisor read access in kernel mode [ 111.518333] #PF: error_code(0x0000) - not-present page [ 111.518771] PGD a240e067 P4D a240e067 PUD a2410067 PMD 0 This patch fixes that by at least zero-ing out that memmap (so e.g., page_to_pfn() will not crash). Commit 907ec5fc ("mm: zero remaining unavailable struct pages") tried to fix a similar issue, but forgot to consider this special case. After this patch, there are still problems to solve. E.g., not all of these pages falling into a memory hole will actually get initialized later and set PageReserved - they are only zeroed out - but at least the immediate crashes are gone. A follow-up patch will take care of this. Link: http://lkml.kernel.org/r/20191211163201.17179-2-david@redhat.com Fixes: f7f99100 ("mm: stop zeroing memory during allocation in vmemmap") Signed-off-by:
Daniel Jordan <daniel.m.jordan@oracle.com> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Pavel Tatashin <pasha.tatashin@oracle.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Steven Sistare <steven.sistare@oracle.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Daniel Jordan <daniel.m.jordan@oracle.com> Cc: Bob Picco <bob.picco@oracle.com> Cc: Oscar Salvador <osalvador@suse.de> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: <stable@vger.kernel.org> [4.15+] Signed-off-by:
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Gang He authored
Writing a cloned file triggers a kernel oops and the user-space command process is also killed by the system. The bug can be reproduced stably via: 1) create a file under ocfs2 file system directory. journalctl -b > aa.txt 2) create a cloned file for this file. reflink aa.txt bb.txt 3) write the cloned file with dd command. dd if=/dev/zero of=bb.txt bs=512 count=1 conv=notrunc The dd command is killed by the kernel, then you can see the oops message via dmesg command. [ 463.875404] BUG: kernel NULL pointer dereference, address: 0000000000000028 [ 463.875413] #PF: supervisor read access in kernel mode [ 463.875416] #PF: error_code(0x0000) - not-present page [ 463.875418] PGD 0 P4D 0 [ 463.875425] Oops: 0000 [#1] SMP PTI [ 463.875431] CPU: 1 PID: 2291 Comm: dd Tainted: G OE 5.3.16-2-default [ 463.875433] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 463.875500] RIP: 0010:ocfs2_refcount_cow+0xa4/0x5d0 [ocfs2] [ 463.875505] Code: 06 89 6c 24 38 89 eb f6 44 24 3c 02 74 be 49 8b 47 28 [ 463.875508] RSP: 0018:ffffa2cb409dfce8 EFLAGS: 00010202 [ 463.875512] RAX: ffff8b1ebdca8000 RBX: 0000000000000001 RCX: ffff8b1eb73a9df0 [ 463.875515] RDX: 0000000000056a01 RSI: 0000000000000000 RDI: 0000000000000000 [ 463.875517] RBP: 0000000000000001 R08: ffff8b1eb73a9de0 R09: 0000000000000000 [ 463.875520] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 [ 463.875522] R13: ffff8b1eb922f048 R14: 0000000000000000 R15: ffff8b1eb922f048 [ 463.875526] FS: 00007f8f44d15540(0000) GS:ffff8b1ebeb00000(0000) knlGS:0000000000000000 [ 463.875529] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 463.875532] CR2: 0000000000000028 CR3: 000000003c17a000 CR4: 00000000000006e0 [ 463.875546] Call Trace: [ 463.875596] ? ocfs2_inode_lock_full_nested+0x18b/0x960 [ocfs2] [ 463.875648] ocfs2_file_write_iter+0xaf8/0xc70 [ocfs2] [ 463.875672] new_sync_write+0x12d/0x1d0 [ 463.875688] vfs_write+0xad/0x1a0 [ 463.875697] ksys_write+0xa1/0xe0 [ 463.875710] do_syscall_64+0x60/0x1f0 [ 463.875743] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 463.875758] RIP: 0033:0x7f8f4482ed44 [ 463.875762] Code: 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 80 00 00 00 [ 463.875765] RSP: 002b:00007fff300a79d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 463.875769] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8f4482ed44 [ 463.875771] RDX: 0000000000000200 RSI: 000055f771b5c000 RDI: 0000000000000001 [ 463.875774] RBP: 0000000000000200 R08: 00007f8f44af9c78 R09: 0000000000000003 [ 463.875776] R10: 000000000000089f R11: 0000000000000246 R12: 000055f771b5c000 [ 463.875779] R13: 0000000000000200 R14: 0000000000000000 R15: 000055f771b5c000 This regression problem was introduced by commit e74540b2 ("ocfs2: protect extent tree in ocfs2_prepare_inode_for_write()"). Link: http://lkml.kernel.org/r/20200121050153.13290-1-ghe@suse.com Fixes: e74540b2 ("ocfs2: protect extent tree in ocfs2_prepare_inode_for_write()"). Signed-off-by:
Gang He <ghe@suse.com> Reviewed-by:
Joseph Qi <joseph.qi@linux.alibaba.com> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Changwei Ge <gechangwei@live.cn> Cc: Jun Piao <piaojun@huawei.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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- 03 Feb, 2020 8 commits
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Masahiro Yamada authored
Since commit ddd09bcc ("initramfs: make compression options not depend on INITRAMFS_SOURCE"), Kconfig asks the compression mode for the built-in initramfs regardless of INITRAMFS_SOURCE. It is technically simpler, but pointless from a UI perspective, Linus says [1]. When INITRAMFS_SOURCE is empty, usr/Makefile creates a tiny default cpio, which is so small that nobody cares about the compression. This commit hides the Kconfig choice in that case. The default cpio is embedded without compression, which was the original behavior. [1]: https://lkml.org/lkml/2020/2/1/160Suggested-by:
Masahiro Yamada <masahiroy@kernel.org> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linuxLinus Torvalds authored
Pull more btrfs updates from David Sterba: "Fixes that arrived after the merge window freeze, mostly stable material. - fix race in tree-mod-log element tracking - fix bio flushing inside extent writepages - fix assertion when in-memory tracking of discarded extents finds an empty tree (eg. after adding a new device) - update logic of temporary read-only block groups to take into account overcommit - fix some fixup worker corner cases: - page could not go through proper COW cycle and the dirty status is lost due to page migration - deadlock if delayed allocation is performed under page lock - fix send emitting invalid clones within the same file - fix statfs reporting 0 free space when global block reserve size is larger than remaining free space but there is still space for new chunks" * tag 'for-5.6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: btrfs: do not zero f_bavail if we have available space Btrfs: send, fix emission of invalid clone operations within the same file btrfs: do not do delalloc reservation under page lock btrfs: drop the -EBUSY case in __extent_writepage_io Btrfs: keep pages dirty when using btrfs_writepage_fixup_worker btrfs: take overcommit into account in inc_block_group_ro btrfs: fix force usage in inc_block_group_ro btrfs: Correctly handle empty trees in find_first_clear_extent_bit btrfs: flush write bio if we loop in extent_write_cache_pages Btrfs: fix race between adding and putting tree mod seq elements and nodes -
git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linuxLinus Torvalds authored
Pull kgdb updates from Daniel Thompson: "Everything for kgdb this time around is either simplifications or clean ups. In particular Douglas Anderson's modifications to the backtrace machine in the *last* dev cycle have enabled Doug to tidy up some MIPS specific backtrace code and stop sharing certain data structures across the kernel. Note that The MIPS folks were on Cc: for the MIPS patch and reacted positively (but without an explicit Acked-by). Doug also got rid of the implicit switching between tasks and register sets during some but not of kdb's backtrace actions (because the implicit switching was either confusing for users, pointless or both). Finally there is a coverity fix and patch to replace open coded console traversal with the proper helper function" * tag 'kgdb-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux: kdb: Use for_each_console() helper kdb: remove redundant assignment to pointer bp kdb: Get rid of confusing diag msg from "rd" if current task has no regs kdb: Gid rid of implicit setting of the current task / regs kdb: kdb_current_task shouldn't be exported kdb: kdb_current_regs should be private MIPS: kdb: Remove old workaround for backtracing on other CPUs
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds authored
Pull char/misc fix from Greg KH: "Here is a single patch, that fixes up a commit that came in the previous char/misc merge. It fixes a bug in the hpet driver that everyone keeps tripping over in their automated testing. Good thing is, people are catching it. Bad thing it wasn't caught by anyone testing before this. Oh well... This has been in linux-next for a few days with no reported issues" * tag 'char-misc-5.6-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: char: hpet: Fix out-of-bounds read bug
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlightLinus Torvalds authored
Pull backlight updates from Lee Jones: "Fix-ups: - Remove superfluous code in ams369fg06 - Convert over to GPIO descriptor (gpiod) in bd6107 Bug Fixes: - Fix unsigned comparison to less than zero in qcom-wled" * tag 'backlight-next-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: backlight: qcom-wled: Fix unsigned comparison to zero backlight: bd6107: Convert to use GPIO descriptor backlight: ams369fg06: Drop GPIO include
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfdLinus Torvalds authored
Pull MFD updates from Lee Jones: "New Drivers: - Add support for ROHM BD71828 PMICs and GPIOs - Add support for Qualcomm Aqstic Audio Codecs WCD9340 and WCD9341 New Device Support: - Add support for BD71828 to BD70528 RTC driver - Add support for Intel's Jasper Lake to LPSS PCI New Functionality: - Add support for Power Key to ROHM BD71828 - Add support for Clocks to ROHM BD71828 - Add support for GPIOs to Dialog DA9062 - Add support for USB PD Notify to ChromiumOS EC - Allow callers to specify args when requesting regmap lookup; syscon Fix-ups: - Improve error handling and sanity checking; atmel-hlcdc, dln2 - Device Tree support/documentation; bd71828, da9062, xylon,logicvc, ab8500, max14577, atmel-usart - Match devices using platform IDs; bd7xxxx - Refactor BD718x7 regulator component; bd718x7-regulator - Use standard interfaces/helpers; syscon, sm501 - Trivial (whitespace, spelling, etc); ab8500-core, Kconfig - Remove unused code; db8500-prcmu, tqmx86 - Wait until boot has finished before accessing registers; madera-core - Provide missing register value defaults; cs47l15-tables - Allow more time for hardware to reset; madera-core Bug Fixes: - Fix erroneous register values; rohm-bd70528 - Fix register volatility; axp20x, rn5t618 - Fix Kconfig dependencies; MFD_MAX77650 - Fix incorrect compatible string; da9062-core - Fix syscon_regmap_lookup_by_phandle_args() stub; syscon" * tag 'mfd-next-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (41 commits) mfd: syscon: Fix syscon_regmap_lookup_by_phandle_args() dummy mfd: wcd934x: Add support to wcd9340/wcd9341 codec mfd: syscon: Add arguments support for syscon reference mfd: rn5t618: Mark ADC control register volatile dt-bindings: atmel-usart: Add microchip,sam9x60-{usart, dbgu} dt-bindings: atmel-usart: Remove wildcard mfd: cros_ec: Add cros-usbpd-notify subdevice mfd: da9062: Fix watchdog compatible string mfd: madera: Allow more time for hardware reset mfd: cs47l15: Add missing register default mfd: madera: Wait for boot done before accessing any other registers mfd: Kconfig: Rename Samsung to lowercase mfd: tqmx86: remove set but not used variable 'i2c_ien' mfd: dbx500-prcmu: Drop DSI pll clock functions mfd: dbx500-prcmu: Drop set_display_clocks() mfd: max77650: Select REGMAP_IRQ in Kconfig mfd: axp20x: Mark AXP20X_VBUS_IPSOUT_MGMT as volatile mfd: ab8500: Fix ab8500-clk typo mfd: intel-lpss: Add Intel Jasper Lake PCI IDs dt-bindings: mfd: max14577: Add reference to max14040_battery.txt descriptions ... -
git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linuxLinus Torvalds authored
Pull Hyper-V updates from Sasha Levin: - Most of the commits here are work to enable host-initiated hibernation support by Dexuan Cui. - Fix for a warning shown when host sends non-aligned balloon requests by Tianyu Lan. * tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: hv_utils: Add the support of hibernation hv_utils: Support host-initiated hibernation request hv_utils: Support host-initiated restart request Tools: hv: Reopen the devices if read() or write() returns errors video: hyperv: hyperv_fb: Use physical memory for fb on HyperV Gen 1 VMs. Drivers: hv: vmbus: Ignore CHANNELMSG_TL_CONNECT_RESULT(23) video: hyperv_fb: Fix hibernation for the deferred IO feature Input: hyperv-keyboard: Add the support of hibernation hv_balloon: Balloon up according to request page number
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Geert Uytterhoeven authored
If CONFIG_MFD_SYSCON=n: include/linux/mfd/syscon.h:54:23: warning: ‘syscon_regmap_lookup_by_phandle_args’ defined but not used [-Wunused-function] Fix this by adding the missing inline keyword. Fixes: 6a24f567 ("mfd: syscon: Add arguments support for syscon reference") Signed-off-by:Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by:
Lee Jones <lee.jones@linaro.org>
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- 02 Feb, 2020 5 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds authored
Pull sparc fix from David Miller: "adjtimex regression fix from Arnd" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc64: fix adjtimex regression
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git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-ledsLinus Torvalds authored
Pull LED updates from Pavel Machek: - New driver for TI TPS6105X - Add managed API to get a LED from a device driver - Misc fixes and updates * tag 'leds-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds: (22 commits) leds: lm3692x: Disable chip on brightness 0 leds: lm3692x: Split out lm3692x_leds_disable leds: lm3692x: Move lm3692x_init and rename to lm3692x_leds_enable leds: lm3692x: Make sure we don't exceed the maximum LED current dt: bindings: lm3692x: Add led-max-microamp property leds: lm3692x: Allow to configure over voltage protection dt: bindings: lm3692x: Add ti,ovp-microvolt property leds: populate the device's of_node leds: Add managed API to get a LED from a device driver leds: Add of_led_get() and led_put() leds: lm3532: add pointer to documentation and fix typo leds: lm3532: use extended registration so that LED can be used for backlight leds: lm3642: remove warnings for bad strtol, cleanup gotos leds: rb532: cleanup whitespace ledtrig-pattern: fix email address quoting in MODULE_AUTHOR() dt-bindings: mfd: update TI tps6105x chip bindings leds: tps6105x: add driver for MFD chip LED mode led: max77650: add of_match table leds: bd2802: Convert to use GPIO descriptors leds: pca963x: Fix open-drain initialization ...
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git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linuxLinus Torvalds authored
Pull pcmcia updates from Dominik Brodowski: "This is a series co-developed by Simon Geis and Lukas Panzer to clean up the i82092 PCMCIA device driver" * 'pcmcia-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux: PCMCIA/i82092: remove #if 0 block PCMCIA/i82092: delete enter/leave macro PCMCIA/i82092: include <linux/io.h> instead of <asm/io.h> PCMCIA/i82092: shorten the lines with over 80 characters PCMCIA/i82092: move assignment out of if condition PCMCIA/i82092: change code indentation PCMCIA/i82092: insert blank line after declarations PCMCIA/i82092: remove braces around single statement blocks PCMCIA/i82092: add/remove spaces to improve readability PCMCIA/i82092: use dev_<level> instead of printk
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Josef Bacik authored
There was some logic added a while ago to clear out f_bavail in statfs() if we did not have enough free metadata space to satisfy our global reserve. This was incorrect at the time, however didn't really pose a problem for normal file systems because we would often allocate chunks if we got this low on free metadata space, and thus wouldn't really hit this case unless we were actually full. Fast forward to today and now we are much better about not allocating metadata chunks all of the time. Couple this with d792b0f1 ("btrfs: always reserve our entire size for the global reserve") which now means we'll easily have a larger global reserve than our free space, we are now more likely to trip over this while still having plenty of space. Fix this by skipping this logic if the global rsv's space_info is not full. space_info->full is 0 unless we've attempted to allocate a chunk for that space_info and that has failed. If this happens then the space for the global reserve is definitely sacred and we need to report b_avail == 0, but before then we can just use our calculated b_avail. Reported-by:
Martin Steigerwald <martin@lichtvoll.de> Fixes: ca8a51b3 ("btrfs: statfs: report zero available if metadata are exhausted") CC: stable@vger.kernel.org # 4.5+ Reviewed-by:
Qu Wenruo <wqu@suse.com> Tested-By:
Josef Bacik <josef@toxicpanda.com> Reviewed-by:
David Sterba <dsterba@suse.com> Signed-off-by:
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Arnd Bergmann authored
Anatoly Pugachev reported one of the y2038 patches to introduce a fatal bug from a stupid typo: [ 96.384129] watchdog: BUG: soft lockup - CPU#8 stuck for 22s! ... [ 96.385624] [0000000000652ca4] handle_mm_fault+0x84/0x320 [ 96.385668] [0000000000b6f2bc] do_sparc64_fault+0x43c/0x820 [ 96.385720] [0000000000407754] sparc64_realfault_common+0x10/0x20 [ 96.385769] [000000000042fa28] __do_sys_sparc_clock_adjtime+0x28/0x80 [ 96.385819] [00000000004307f0] sys_sparc_clock_adjtime+0x10/0x20 [ 96.385866] [0000000000406294] linux_sparc_syscall+0x34/0x44 Fix the code to dereference the correct pointer again. Reported-by:
Anatoly Pugachev <matorola@gmail.com> Tested-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
David S. Miller <davem@davemloft.net>
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- 01 Feb, 2020 5 commits
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git://git.samba.org/sfrench/cifs-2.6Linus Torvalds authored
Pull cifs fix from Steve French: "Small SMB3 fix for stable (fixes problem with soft mounts)" * tag '5.6-rc-small-smb3-fix-for-stable' of git://git.samba.org/sfrench/cifs-2.6: cifs: update internal module version number cifs: fix soft mounts hanging in the reconnect code
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Al Viro authored
Brown paperbag time: fetching ->i_uid/->i_mode really should've been done from nd->inode. I even suggested that, but the reason for that has slipped through the cracks and I went for dir->d_inode instead - made for more "obvious" patch. Analysis: - at the entry into do_last() and all the way to step_into(): dir (aka nd->path.dentry) is known not to have been freed; so's nd->inode and it's equal to dir->d_inode unless we are already doomed to -ECHILD. inode of the file to get opened is not known. - after step_into(): inode of the file to get opened is known; dir might be pointing to freed memory/be negative/etc. - at the call of may_create_in_sticky(): guaranteed to be out of RCU mode; inode of the file to get opened is known and pinned; dir might be garbage. The last was the reason for the original patch. Except that at the do_last() entry we can be in RCU mode and it is possible that nd->path.dentry->d_inode has already changed under us. In that case we are going to fail with -ECHILD, but we need to be careful; nd->inode is pointing to valid struct inode and it's the same as nd->path.dentry->d_inode in "won't fail with -ECHILD" case, so we should use that. Reported-by:
"Rantala, Tommi T. (Nokia - FI/Espoo)" <tommi.t.rantala@nokia.com> Reported-by: syzbot+190005201ced78a74ad6@syzkaller.appspotmail.com Wearing-brown-paperbag: Al Viro <viro@zeniv.linux.org.uk> Cc: stable@kernel.org Fixes: d0cb5018 ("do_last(): fetch directory ->i_mode and ->i_uid before it's too late") Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuildLinus Torvalds authored
Pull Kconfig updates from Masahiro Yamada: - add 'yes2modconfig' and 'mod2yesconfig' targets (useful mainly for turning syzbot configs into more modular ones as a step to minimizing the result) - sanitize help text - various code cleanups * tag 'kconfig-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kconfig: fix documentation typos kconfig: fix an "implicit declaration of function" warning kconfig: fix nesting of symbol help text kconfig: distinguish between dependencies and visibility in help text kconfig: list all definitions of a symbol in help text kconfig: Add yes2modconfig and mod2yesconfig targets. kconfig: use $(PERL) in Makefile kconfig: fix too deep indentation in Makefile kconfig: localmodconfig: fix indentation for closing brace kconfig: localmodconfig: remove unused $config kconfig: squash prop_alloc() into menu_add_prop() kconfig: remove sym from struct property kconfig: remove 'prompt' argument from menu_add_prop() kconfig: move prompt handling to menu_add_prompt() from menu_add_prop() kconfig: remove 'prompt' symbol kconfig: drop T_WORD from the RHS of 'prompt' symbol kconfig: use parent->dep as the parentdep of 'menu' kconfig: remove the rootmenu check in menu_add_prop()
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuildLinus Torvalds authored
Pull Kbuild updates from Masahiro Yamada: - detect missing include guard in UAPI headers - do not create orphan built-in.a or obj-y objects - generate modules.builtin more simply, and drop tristate.conf - simplify built-in initramfs creation - make linux-headers deb package thinner - optimize the deb package build script - misc cleanups * tag 'kbuild-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (34 commits) builddeb: split libc headers deployment out into a function builddeb: split kernel headers deployment out into a function builddeb: remove redundant make for ARCH=um builddeb: avoid invoking sub-shells where possible builddeb: remove redundant $objtree/ builddeb: match temporary directory name to the package name builddeb: remove unneeded files in hdrobjfiles for headers package kbuild: use -S instead of -E for precise cc-option test in Kconfig builddeb: allow selection of .deb compressor kbuild: remove 'Building modules, stage 2.' log kbuild: remove *.tmp file when filechk fails kbuild: remove PYTHON2 variable modpost: assume STT_SPARC_REGISTER is defined gen_initramfs.sh: remove intermediate cpio_list on errors initramfs: refactor the initramfs build rules gen_initramfs.sh: always output cpio even without -o option initramfs: add default_cpio_list, and delete -d option support initramfs: generate dependency list and cpio at the same time initramfs: specify $(src)/gen_initramfs.sh as a prerequisite in Makefile initramfs: make initramfs compression choice non-optional ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/randomLinus Torvalds authored
Pull random changes from Ted Ts'o: "Change /dev/random so that it uses the CRNG and only blocking if the CRNG hasn't initialized, instead of the old blocking pool. Also clean up archrandom.h, and some other miscellaneous cleanups" * tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random: (24 commits) s390x: Mark archrandom.h functions __must_check powerpc: Mark archrandom.h functions __must_check powerpc: Use bool in archrandom.h x86: Mark archrandom.h functions __must_check linux/random.h: Mark CONFIG_ARCH_RANDOM functions __must_check linux/random.h: Use false with bool linux/random.h: Remove arch_has_random, arch_has_random_seed s390: Remove arch_has_random, arch_has_random_seed powerpc: Remove arch_has_random, arch_has_random_seed x86: Remove arch_has_random, arch_has_random_seed random: remove some dead code of poolinfo random: fix typo in add_timer_randomness() random: Add and use pr_fmt() random: convert to ENTROPY_BITS for better code readability random: remove unnecessary unlikely() random: remove kernel.random.read_wakeup_threshold random: delete code to pull data into pools random: remove the blocking pool random: make /dev/random be almost like /dev/urandom random: ignore GRND_RANDOM in getentropy(2) ...
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- 31 Jan, 2020 7 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pciLinus Torvalds authored
Pull PCI updates from Bjorn Helgaas: "Resource management: - Improve resource assignment for hot-added nested bridges, e.g., Thunderbolt (Nicholas Johnson) Power management: - Optionally print config space of devices before suspend (Chen Yu) - Increase D3 delay for AMD Ryzen5/7 XHCI controllers (Daniel Drake) Virtualization: - Generalize DMA alias quirks (James Sewart) - Add DMA alias quirk for PLX PEX NTB (James Sewart) - Fix IOV memory leak (Navid Emamdoost) AER: - Log which device prevents error recovery (Yicong Yang) Peer-to-peer DMA: - Whitelist Intel SkyLake-E (Armen Baloyan) Broadcom iProc host bridge driver: - Apply PAXC quirk whether driver is built-in or module (Wei Liu) Broadcom STB host bridge driver: - Add Broadcom STB PCIe host controller driver (Jim Quinlan) Intel Gateway SoC host bridge driver: - Add driver for Intel Gateway SoC (Dilip Kota) Intel VMD host bridge driver: - Add support for DMA aliases on other buses (Jon Derrick) - Remove dma_map_ops overrides (Jon Derrick) - Remove now-unused X86_DEV_DMA_OPS (Christoph Hellwig) NVIDIA Tegra host bridge driver: - Fix Tegra30 afi_pex2_ctrl register offset (Marcel Ziswiler) Panasonic UniPhier host bridge driver: - Remove module code since driver can't be built as a module (Masahiro Yamada) Qualcomm host bridge driver: - Add support for SDM845 PCIe controller (Bjorn Andersson) TI Keystone host bridge driver: - Fix "num-viewport" DT property error handling (Kishon Vijay Abraham I) - Fix link training retries initiation (Yurii Monakov) - Fix outbound region mapping (Yurii Monakov) Misc: - Add Switchtec Gen4 support (Kelvin Cao) - Add Switchtec Intercomm Notify and Upstream Error Containment support (Logan Gunthorpe) - Use dma_set_mask_and_coherent() since Switchtec supports 64-bit addressing (Wesley Sheng)" * tag 'pci-v5.6-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (60 commits) PCI: Allow adjust_bridge_window() to shrink resource if necessary PCI: Set resource size directly in adjust_bridge_window() PCI: Rename extend_bridge_window() to adjust_bridge_window() PCI: Rename extend_bridge_window() parameter PCI: Consider alignment of hot-added bridges when assigning resources PCI: Remove local variable usage in pci_bus_distribute_available_resources() PCI: Pass size + alignment to pci_bus_distribute_available_resources() PCI: Rename variables PCI: vmd: Add two VMD Device IDs PCI: Remove unnecessary braces PCI: brcmstb: Add MSI support PCI: brcmstb: Add Broadcom STB PCIe host controller driver x86/PCI: Remove X86_DEV_DMA_OPS PCI: vmd: Remove dma_map_ops overrides iommu/vt-d: Remove VMD child device sanity check iommu/vt-d: Use pci_real_dma_dev() for mapping PCI: Introduce pci_real_dma_dev() x86/PCI: Expose VMD's pci_dev in struct pci_sysdata x86/PCI: Add to_pci_sysdata() helper PCI/AER: Initialize aer_fifo ... -
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediaLinus Torvalds authored
Pull media updates from Mauro Carvalho Chehab: - New staging driver for Rockship ISPv1 unit - New staging driver for Rockchip MIPI Synopsys DPHY RX0 - y2038 fixes at V4L2 API (backward-compatible) - A dvb core fix when receiving invalid EIT sections - Some clang-specific warnings got fixed - Added support for touch V4L2 interface at vivid - Several drivers were converted to use the new i2c_new_scanned_device() kAPI - Added sm1 support at meson's vdec driver - Several other driver cleanups, fixes and improvements * tag 'media/v5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (207 commits) media: staging/intel-ipu3: remove TODO item about acronyms media: v4l2-fwnode: Print the node name while parsing endpoints media: Revert "media: staging/intel-ipu3: make imgu use fixed running mode" media: mt9v111: constify copied structure media: platform: VIDEO_MEDIATEK_JPEG can also depend on MTK_IOMMU media: uvcvideo: Add a quirk to force GEO GC6500 Camera bits-per-pixel value media: uvcvideo: Avoid cyclic entity chains due to malformed USB descriptors media: hantro: fix post-processing NULL pointer dereference media: rcar-vin: Use correct pixel format when aligning format media: MAINTAINERS: add entry for Rockchip ISP1 driver media: staging: rkisp1: add TODO file for staging media: staging: rkisp1: add document for rkisp1 meta buffer format media: staging: rkisp1: add output device for parameters media: staging: rkisp1: add capture device for statistics media: staging: rkisp1: add user space ABI definitions media: staging: rkisp1: add streaming paths media: staging: rkisp1: add Rockchip ISP1 base driver media: staging: phy-rockchip-dphy-rx0: add Rockchip MIPI Synopsys DPHY RX0 driver media: staging: dt-bindings: add Rockchip MIPI RX D-PHY RX0 yaml bindings media: staging: dt-bindings: add Rockchip ISP1 yaml bindings ...
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git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds authored
Pull rdma updates from Jason Gunthorpe: "A very quiet cycle with few notable changes. Mostly the usual list of one or two patches to drivers changing something that isn't quite rc worthy. The subsystem seems to be seeing a larger number of rework and cleanup style patches right now, I feel that several vendors are prepping their drivers for new silicon. Summary: - Driver updates and cleanup for qedr, bnxt_re, hns, siw, mlx5, mlx4, rxe, i40iw - Larger series doing cleanup and rework for hns and hfi1. - Some general reworking of the CM code to make it a little more understandable - Unify the different code paths connected to the uverbs FD scheme - New UAPI ioctls conversions for get context and get async fd - Trace points for CQ and CM portions of the RDMA stack - mlx5 driver support for virtio-net formatted rings as RDMA raw ethernet QPs - verbs support for setting the PCI-E relaxed ordering bit on DMA traffic connected to a MR - A couple of bug fixes that came too late to make rc7" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (108 commits) RDMA/core: Make the entire API tree static RDMA/efa: Mask access flags with the correct optional range RDMA/cma: Fix unbalanced cm_id reference count during address resolve RDMA/umem: Fix ib_umem_find_best_pgsz() IB/mlx4: Fix leak in id_map_find_del IB/opa_vnic: Spelling correction of 'erorr' to 'error' IB/hfi1: Fix logical condition in msix_request_irq RDMA/cm: Remove CM message structs RDMA/cm: Use IBA functions for complex structure members RDMA/cm: Use IBA functions for simple structure members RDMA/cm: Use IBA functions for swapping get/set acessors RDMA/cm: Use IBA functions for simple get/set acessors RDMA/cm: Add SET/GET implementations to hide IBA wire format RDMA/cm: Add accessors for CM_REQ transport_type IB/mlx5: Return the administrative GUID if exists RDMA/core: Ensure that rdma_user_mmap_entry_remove() is a fence IB/mlx4: Fix memory leak in add_gid error flow IB/mlx5: Expose RoCE accelerator counters RDMA/mlx5: Set relaxed ordering when requested RDMA/core: Add the core support field to METHOD_GET_CONTEXT ... -
git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linuxLinus Torvalds authored
Pull thermal fixes from Daniel Lezcano: - Fix a severe docs build failure for cpu idle cooling device (Randy Dunlap) - Fix a spelling mistake in the error message for the stm32 (Colin Ian King) * tag 'thermal-v5.6-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: thermal: stm32: fix spelling mistake "preprare" -> "prepare" Documentation: cpu-idle-cooling: fix a SEVERE docs build failure
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull more ACPI updates from Rafael Wysocki: "Fix up MAINTAINERS entires related to ACPI (Andy Shevchenko)" * tag 'acpi-5.6-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: MAINTAINERS: Sort entries in database for X-POWERS AXP288 MAINTAINERS: Sort entries in database for ACPICA MAINTAINERS: Sort entries in database for ACPI
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull more power manadement updates from Rafael Wysocki: "Prevent cpufreq from creating excessively large stack frames and fix the handling of devices deleted during system-wide resume in the PM core (Rafael Wysocki), revert a problematic commit affecting the cpupower utility and correct its man page (Thomas Renninger, Brahadambal Srinivasan), and improve the intel_pstate_tracer utility (Doug Smythies)" * tag 'pm-5.6-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: tools/power/x86/intel_pstate_tracer: change several graphs to autoscale y-axis tools/power/x86/intel_pstate_tracer: changes for python 3 compatibility Correction to manpage of cpupower cpufreq: Avoid creating excessively large stack frames PM: core: Fix handling of devices deleted during system-wide resume cpupower: Revert library ABI changes from commit ae291709
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Steve French authored
To 2.25 Signed-off-by:Steve French <stfrench@microsoft.com>
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