- 05 Feb, 2021 17 commits
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Muchun Song authored
The VM_BUG_ON_PAGE avoids the generation of any code, even if that expression has side-effects when !CONFIG_DEBUG_VM. Link: https://lkml.kernel.org/r/20210126031009.96266-1-songmuchun@bytedance.com Fixes: e5dfaceb ("mm/hugetlb.c: just use put_page_testzero() instead of page_count()") Signed-off-by:
Muchun Song <songmuchun@bytedance.com> Reviewed-by:
Mike Kravetz <mike.kravetz@oracle.com> Reviewed-by:
Miaohe Lin <linmiaohe@huawei.com> Cc: <stable@vger.kernel.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Nathan Chancellor authored
When building ARCH=mips 32r2el_defconfig with CONFIG_UBSAN_ALIGNMENT: ld.lld: error: undefined symbol: __ubsan_handle_alignment_assumption referenced by slab.h:557 (include/linux/slab.h:557) main.o:(do_initcalls) in archive init/built-in.a referenced by slab.h:448 (include/linux/slab.h:448) do_mounts_rd.o:(rd_load_image) in archive init/built-in.a referenced by slab.h:448 (include/linux/slab.h:448) do_mounts_rd.o:(identify_ramdisk_image) in archive init/built-in.a referenced 1579 more times Implement this for the kernel based on LLVM's handleAlignmentAssumptionImpl because the kernel is not linked against the compiler runtime. Link: https://github.com/ClangBuiltLinux/linux/issues/1245 Link: https://github.com/llvm/llvm-project/blob/llvmorg-11.0.1/compiler-rt/lib/ubsan/ubsan_handlers.cpp#L151-L190 Link: https://lkml.kernel.org/r/20210127224451.2587372-1-nathan@kernel.orgSigned-off-by:Nathan Chancellor <nathan@kernel.org> Acked-by:
Kees Cook <keescook@chromium.org> Reviewed-by:
Nick Desaulniers <ndesaulniers@google.com> Signed-off-by:
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Vincenzo Frascino authored
Currently, addr_has_metadata() returns true for every address. An invalid address (e.g. NULL) passed to the function when, KASAN_HW_TAGS is enabled, leads to a kernel panic. Make addr_has_metadata() return true for valid addresses only. Note: KASAN_HW_TAGS support for vmalloc will be added with a future patch. Link: https://lkml.kernel.org/r/20210126134409.47894-3-vincenzo.frascino@arm.com Fixes: 2e903b91 ("kasan, arm64: implement HW_TAGS runtime") Signed-off-by:
Vincenzo Frascino <vincenzo.frascino@arm.com> Reviewed-by:
Andrey Konovalov <andreyknvl@google.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Leon Romanovsky <leonro@mellanox.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Naresh Kamboju <naresh.kamboju@linaro.org> Cc: "Paul E . McKenney" <paulmck@kernel.org> Cc: Will Deacon <will@kernel.org> Signed-off-by:
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Vincenzo Frascino authored
Patch series "kasan: Fix metadata detection for KASAN_HW_TAGS", v5. With the introduction of KASAN_HW_TAGS, kasan_report() currently assumes that every location in memory has valid metadata associated. This is due to the fact that addr_has_metadata() returns always true. As a consequence of this, an invalid address (e.g. NULL pointer address) passed to kasan_report() when KASAN_HW_TAGS is enabled, leads to a kernel panic. Example below, based on arm64: BUG: KASAN: invalid-access in 0x0 Read at addr 0000000000000000 by task swapper/0/1 Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 Mem abort info: ESR = 0x96000004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 Data abort info: ISV = 0, ISS = 0x00000004 CM = 0, WnR = 0 ... Call trace: mte_get_mem_tag+0x24/0x40 kasan_report+0x1a4/0x410 alsa_sound_last_init+0x8c/0xa4 do_one_initcall+0x50/0x1b0 kernel_init_freeable+0x1d4/0x23c kernel_init+0x14/0x118 ret_from_fork+0x10/0x34 Code: d65f03c0 9000f021 f9428021 b6cfff61 (d9600000) ---[ end trace 377c8bb45bdd3a1a ]--- hrtimer: interrupt took 48694256 ns note: swapper/0[1] exited with preempt_count 1 Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b SMP: stopping secondary CPUs Kernel Offset: 0x35abaf140000 from 0xffff800010000000 PHYS_OFFSET: 0x40000000 CPU features: 0x0a7e0152,61c0a030 Memory Limit: none ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b ]--- This series fixes the behavior of addr_has_metadata() that now returns true only when the address is valid. This patch (of 2): With the introduction of KASAN_HW_TAGS, kasan_report() accesses the metadata only when addr_has_metadata() succeeds. Add a comment to make sure that the preconditions to the function are explicitly clarified. Link: https://lkml.kernel.org/r/20210126134409.47894-1-vincenzo.frascino@arm.com Link: https://lkml.kernel.org/r/20210126134409.47894-2-vincenzo.frascino@arm.comSigned-off-by: -
Waiman Long authored
Commit 3fea5a49 ("mm: memcontrol: convert page cache to a new mem_cgroup_charge() API") introduced a bug in __add_to_page_cache_locked() causing the following splat: page dumped because: VM_BUG_ON_PAGE(page_memcg(page)) pages's memcg:ffff8889a4116000 ------------[ cut here ]------------ kernel BUG at mm/memcontrol.c:2924! invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 35 PID: 12345 Comm: cat Tainted: G S W I 5.11.0-rc4-debug+ #1 Hardware name: HP HP Z8 G4 Workstation/81C7, BIOS P60 v01.25 12/06/2017 RIP: commit_charge+0xf4/0x130 Call Trace: mem_cgroup_charge+0x175/0x770 __add_to_page_cache_locked+0x712/0xad0 add_to_page_cache_lru+0xc5/0x1f0 cachefiles_read_or_alloc_pages+0x895/0x2e10 [cachefiles] __fscache_read_or_alloc_pages+0x6c0/0xa00 [fscache] __nfs_readpages_from_fscache+0x16d/0x630 [nfs] nfs_readpages+0x24e/0x540 [nfs] read_pages+0x5b1/0xc40 page_cache_ra_unbounded+0x460/0x750 generic_file_buffered_read_get_pages+0x290/0x1710 generic_file_buffered_read+0x2a9/0xc30 nfs_file_read+0x13f/0x230 [nfs] new_sync_read+0x3af/0x610 vfs_read+0x339/0x4b0 ksys_read+0xf1/0x1c0 do_syscall_64+0x33/0x40 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Before that commit, there was a try_charge() and commit_charge() in __add_to_page_cache_locked(). These two separated charge functions were replaced by a single mem_cgroup_charge(). However, it forgot to add a matching mem_cgroup_uncharge() when the xarray insertion failed with the page released back to the pool. Fix this by adding a mem_cgroup_uncharge() call when insertion error happens. Link: https://lkml.kernel.org/r/20210125042441.20030-1-longman@redhat.com Fixes: 3fea5a49 ("mm: memcontrol: convert page cache to a new mem_cgroup_charge() API") Signed-off-by:
Waiman Long <longman@redhat.com> Reviewed-by:
Alex Shi <alex.shi@linux.alibaba.com> Acked-by:
Johannes Weiner <hannes@cmpxchg.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Miaohe Lin <linmiaohe@huawei.com> Cc: Muchun Song <smuchun@gmail.com> Cc: Michal Hocko <mhocko@suse.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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Manivannan Sadhasivam authored
Map my personal and work addresses to korg mail address. Link: https://lkml.kernel.org/r/20210201104640.108556-1-manivannan.sadhasivam@linaro.orgSigned-off-by:
Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by:
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Viresh Kumar authored
For some of the patches the email id was misspelled to linaro.com instead of linaro.org and for others Viresh Kumar was written as "viresh kumar" (all small). Fix both with help of mailmap entries. Link: https://lkml.kernel.org/r/d6b80b210d7fe0ddc1d4d0b22eff9708c72ef8b3.1612178938.git.viresh.kumar@linaro.orgSigned-off-by:
Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by:
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Roman Gushchin authored
With kaslr the kernel image is placed at a random place, so starting the bottom-up allocation with the kernel_end can result in an allocation failure and a warning like this one: hugetlb_cma: reserve 2048 MiB, up to 2048 MiB per node ------------[ cut here ]------------ memblock: bottom-up allocation failed, memory hotremove may be affected WARNING: CPU: 0 PID: 0 at mm/memblock.c:332 memblock_find_in_range_node+0x178/0x25a Modules linked in: CPU: 0 PID: 0 Comm: swapper Not tainted 5.10.0+ #1169 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc33 04/01/2014 RIP: 0010:memblock_find_in_range_node+0x178/0x25a Code: e9 6d ff ff ff 48 85 c0 0f 85 da 00 00 00 80 3d 9b 35 df 00 00 75 15 48 c7 c7 c0 75 59 88 c6 05 8b 35 df 00 01 e8 25 8a fa ff <0f> 0b 48 c7 44 24 20 ff ff ff ff 44 89 e6 44 89 ea 48 c7 c1 70 5c RSP: 0000:ffffffff88803d18 EFLAGS: 00010086 ORIG_RAX: 0000000000000000 RAX: 0000000000000000 RBX: 0000000240000000 RCX: 00000000ffffdfff RDX: 00000000ffffdfff RSI: 00000000ffffffea RDI: 0000000000000046 RBP: 0000000100000000 R08: ffffffff88922788 R09: 0000000000009ffb R10: 00000000ffffe000 R11: 3fffffffffffffff R12: 0000000000000000 R13: 0000000000000000 R14: 0000000080000000 R15: 00000001fb42c000 FS: 0000000000000000(0000) GS:ffffffff88f71000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffa080fb401000 CR3: 00000001fa80a000 CR4: 00000000000406b0 Call Trace: memblock_alloc_range_nid+0x8d/0x11e cma_declare_contiguous_nid+0x2c4/0x38c hugetlb_cma_reserve+0xdc/0x128 flush_tlb_one_kernel+0xc/0x20 native_set_fixmap+0x82/0xd0 flat_get_apic_id+0x5/0x10 register_lapic_address+0x8e/0x97 setup_arch+0x8a5/0xc3f start_kernel+0x66/0x547 load_ucode_bsp+0x4c/0xcd secondary_startup_64_no_verify+0xb0/0xbb random: get_random_bytes called from __warn+0xab/0x110 with crng_init=0 ---[ end trace f151227d0b39be70 ]--- At the same time, the kernel image is protected with memblock_reserve(), so we can just start searching at PAGE_SIZE. In this case the bottom-up allocation has the same chances to success as a top-down allocation, so there is no reason to fallback in the case of a failure. All together it simplifies the logic. Link: https://lkml.kernel.org/r/20201217201214.3414100-2-guro@fb.com Fixes: 8fabc623 ("powerpc: Ensure that swiotlb buffer is allocated from low memory") Signed-off-by:Roman Gushchin <guro@fb.com> Reviewed-by:
Mike Rapoport <rppt@linux.ibm.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Rik van Riel <riel@surriel.com> Cc: Wonhyuk Yang <vvghjk1234@gmail.com> Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com> Signed-off-by:
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Hugh Dickins authored
Sergey reported deadlock between kswapd correctly doing its usual lock_page(page) followed by down_read(page->mapping->i_mmap_rwsem), and madvise(MADV_REMOVE) on an madvise(MADV_HUGEPAGE) area doing down_write(page->mapping->i_mmap_rwsem) followed by lock_page(page). This happened when shmem_fallocate(punch hole)'s unmap_mapping_range() reaches zap_pmd_range()'s call to __split_huge_pmd(). The same deadlock could occur when partially truncating a mapped huge tmpfs file, or using fallocate(FALLOC_FL_PUNCH_HOLE) on it. __split_huge_pmd()'s page lock was added in 5.8, to make sure that any concurrent use of reuse_swap_page() (holding page lock) could not catch the anon THP's mapcounts and swapcounts while they were being split. Fortunately, reuse_swap_page() is never applied to a shmem or file THP (not even by khugepaged, which checks PageSwapCache before calling), and anonymous THPs are never created in shmem or file areas: so that __split_huge_pmd()'s page lock can only be necessary for anonymous THPs, on which there is no risk of deadlock with i_mmap_rwsem. Link: https://lkml.kernel.org/r/alpine.LSU.2.11.2101161409470.2022@eggly.anvils Fixes: c444eb56 ("mm: thp: make the THP mapcount atomic against __split_huge_pmd_locked()") Signed-off-by:
Hugh Dickins <hughd@google.com> Reported-by:
Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> Reviewed-by:
Andrea Arcangeli <aarcange@redhat.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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Johannes Berg authored
On ARCH=um, loading a module doesn't result in its constructors getting called, which breaks module gcov since the debugfs files are never registered. On the other hand, in-kernel constructors have already been called by the dynamic linker, so we can't call them again. Get out of this conundrum by allowing CONFIG_CONSTRUCTORS to be selected, but avoiding the in-kernel constructor calls. Also remove the "if !UML" from GCOV selecting CONSTRUCTORS now, since we really do want CONSTRUCTORS, just not kernel binary ones. Link: https://lkml.kernel.org/r/20210120172041.c246a2cac2fb.I1358f584b76f1898373adfed77f4462c8705b736@changeidSigned-off-by:
Johannes Berg <johannes.berg@intel.com> Reviewed-by:
Peter Oberparleiter <oberpar@linux.ibm.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Jessica Yu <jeyu@kernel.org> Signed-off-by:
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Rick Edgecombe authored
When VM_MAP_PUT_PAGES was added, it was defined with the same value as VM_FLUSH_RESET_PERMS. This doesn't seem like it will cause any big functional problems other than some excess flushing for VM_MAP_PUT_PAGES allocations. Redefine VM_MAP_PUT_PAGES to have its own value. Also, rearrange things so flags are less likely to be missed in the future. Link: https://lkml.kernel.org/r/20210122233706.9304-1-rick.p.edgecombe@intel.com Fixes: b944afc9 ("mm: add a VM_MAP_PUT_PAGES flag for vmap") Signed-off-by:
Rick Edgecombe <rick.p.edgecombe@intel.com> Suggested-by:
Matthew Wilcox <willy@infradead.org> Cc: Miaohe Lin <linmiaohe@huawei.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Daniel Axtens <dja@axtens.net> Cc: <stable@vger.kernel.org> Signed-off-by:
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Rokudo Yan authored
In fast_isolate_freepages, high_pfn will be used if a prefered one (ie PFN >= low_fn) not found. But the high_pfn is not reset before searching an free area, so when it was used as freepage, it may from another free area searched before. As a result move_freelist_head(freelist, freepage) will have unexpected behavior (eg corrupt the MOVABLE freelist) Unable to handle kernel paging request at virtual address dead000000000200 Mem abort info: ESR = 0x96000044 Exception class = DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 Data abort info: ISV = 0, ISS = 0x00000044 CM = 0, WnR = 1 [dead000000000200] address between user and kernel address ranges -000|list_cut_before(inline) -000|move_freelist_head(inline) -000|fast_isolate_freepages(inline) -000|isolate_freepages(inline) -000|compaction_alloc(?, ?) -001|unmap_and_move(inline) -001|migrate_pages([NSD:0xFFFFFF80088CBBD0] from = 0xFFFFFF80088CBD88, [NSD:0xFFFFFF80088CBBC8] get_new_p -002|__read_once_size(inline) -002|static_key_count(inline) -002|static_key_false(inline) -002|trace_mm_compaction_migratepages(inline) -002|compact_zone(?, [NSD:0xFFFFFF80088CBCB0] capc = 0x0) -003|kcompactd_do_work(inline) -003|kcompactd([X19] p = 0xFFFFFF93227FBC40) -004|kthread([X20] _create = 0xFFFFFFE1AFB26380) -005|ret_from_fork(asm) The issue was reported on an smart phone product with 6GB ram and 3GB zram as swap device. This patch fixes the issue by reset high_pfn before searching each free area, which ensure freepage and freelist match when call move_freelist_head in fast_isolate_freepages(). Link: http://lkml.kernel.org/r/20190118175136.31341-12-mgorman@techsingularity.net Link: https://lkml.kernel.org/r/20210112094720.1238444-1-wu-yan@tcl.com Fixes: 5a811889 ("mm, compaction: use free lists to quickly locate a migration target") Signed-off-by:Rokudo Yan <wu-yan@tcl.com> Acked-by:
Mel Gorman <mgorman@techsingularity.net> Acked-by:
Vlastimil Babka <vbabka@suse.cz> Cc: <stable@vger.kernel.org> Signed-off-by:
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Muchun Song authored
All pages isolated for the migration have an elevated reference count and therefore seeing a reference count equal to 1 means that the last user of the page has dropped the reference and the page has became unused and there doesn't make much sense to migrate it anymore. This has been done for regular pages and this patch does the same for hugetlb pages. Although the likelihood of the race is rather small for hugetlb pages it makes sense the two code paths in sync. Link: https://lkml.kernel.org/r/20210115124942.46403-2-songmuchun@bytedance.comSigned-off-by:
Yang Shi <shy828301@gmail.com> Acked-by:
Michal Hocko <mhocko@suse.com> Reviewed-by:
David Hildenbrand <david@redhat.com> Reviewed-by:
Oscar Salvador <osalvador@suse.de> Signed-off-by:
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Muchun Song authored
The page_huge_active() can be called from scan_movable_pages() which do not hold a reference count to the HugeTLB page. So when we call page_huge_active() from scan_movable_pages(), the HugeTLB page can be freed parallel. Then we will trigger a BUG_ON which is in the page_huge_active() when CONFIG_DEBUG_VM is enabled. Just remove the VM_BUG_ON_PAGE. Link: https://lkml.kernel.org/r/20210115124942.46403-6-songmuchun@bytedance.com Fixes: 7e1f049e ("mm: hugetlb: cleanup using paeg_huge_active()") Signed-off-by:
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Muchun Song authored
There is a race between isolate_huge_page() and __free_huge_page(). CPU0: CPU1: if (PageHuge(page)) put_page(page) __free_huge_page(page) spin_lock(&hugetlb_lock) update_and_free_page(page) set_compound_page_dtor(page, NULL_COMPOUND_DTOR) spin_unlock(&hugetlb_lock) isolate_huge_page(page) // trigger BUG_ON VM_BUG_ON_PAGE(!PageHead(page), page) spin_lock(&hugetlb_lock) page_huge_active(page) // trigger BUG_ON VM_BUG_ON_PAGE(!PageHuge(page), page) spin_unlock(&hugetlb_lock) When we isolate a HugeTLB page on CPU0. Meanwhile, we free it to the buddy allocator on CPU1. Then, we can trigger a BUG_ON on CPU0, because it is already freed to the buddy allocator. Link: https://lkml.kernel.org/r/20210115124942.46403-5-songmuchun@bytedance.com Fixes: c8721bbb ("mm: memory-hotplug: enable memory hotplug to handle hugepage") Signed-off-by: -
Muchun Song authored
There is a race condition between __free_huge_page() and dissolve_free_huge_page(). CPU0: CPU1: // page_count(page) == 1 put_page(page) __free_huge_page(page) dissolve_free_huge_page(page) spin_lock(&hugetlb_lock) // PageHuge(page) && !page_count(page) update_and_free_page(page) // page is freed to the buddy spin_unlock(&hugetlb_lock) spin_lock(&hugetlb_lock) clear_page_huge_active(page) enqueue_huge_page(page) // It is wrong, the page is already freed spin_unlock(&hugetlb_lock) The race window is between put_page() and dissolve_free_huge_page(). We should make sure that the page is already on the free list when it is dissolved. As a result __free_huge_page would corrupt page(s) already in the buddy allocator. Link: https://lkml.kernel.org/r/20210115124942.46403-4-songmuchun@bytedance.com Fixes: c8721bbb ("mm: memory-hotplug: enable memory hotplug to handle hugepage") Signed-off-by: -
Muchun Song authored
If a new hugetlb page is allocated during fallocate it will not be marked as active (set_page_huge_active) which will result in a later isolate_huge_page failure when the page migration code would like to move that page. Such a failure would be unexpected and wrong. Only export set_page_huge_active, just leave clear_page_huge_active as static. Because there are no external users. Link: https://lkml.kernel.org/r/20210115124942.46403-3-songmuchun@bytedance.com Fixes: 70c3547e (hugetlbfs: add hugetlbfs_fallocate()) Signed-off-by:
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- 04 Feb, 2021 3 commits
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Mike Rapoport authored
This reverts commit bde9cfa3. Changing the first memory page type from E820_TYPE_RESERVED to E820_TYPE_RAM makes it a part of "System RAM" resource rather than a reserved resource and this in turn causes devmem_is_allowed() to treat is as area that can be accessed but it is filled with zeroes instead of the actual data as previously. The change in /dev/mem output causes lilo to fail as was reported at slakware users forum, and probably other legacy applications will experience similar problems. Link: https://www.linuxquestions.org/questions/slackware-14/slackware-current-lilo-vesa-warnings-after-recent-updates-4175689617/#post6214439Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull ACPI fix from Rafael Wysocki: "Address recent regression causing battery devices to be never bound to a driver on some systems (Hans de Goede)" * tag 'acpi-5.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: scan: Fix battery devices sometimes never binding
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfsLinus Torvalds authored
Pull overlayfs fixes from Miklos Szeredi: - Fix capability conversion and minor overlayfs bugs that are related to the unprivileged overlay mounts introduced in this cycle. - Fix two recent (v5.10) and one old (v4.10) bug. - Clean up security xattr copy-up (related to a SELinux regression). * tag 'ovl-fixes-5.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: ovl: implement volatile-specific fsync error behaviour ovl: skip getxattr of security labels ovl: fix dentry leak in ovl_get_redirect ovl: avoid deadlock on directory ioctl cap: fix conversions on getxattr ovl: perform vfs_getxattr() with mounter creds ovl: add warning on user_ns mismatch
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- 03 Feb, 2021 9 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/rw/umlLinus Torvalds authored
Pull UML fixes from Richard Weinberger: - Make sure to set a default console, otherwise ttynull is selected - Revert initial ARCH_HAS_SET_MEMORY support, this needs more work - Fix a regression due to ubd refactoring - Various small fixes * tag 'for-linus-5.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: um: time: fix initialization in time-travel mode um: fix os_idle_sleep() to not hang Revert "um: support some of ARCH_HAS_SET_MEMORY" Revert "um: allocate a guard page to helper threads" um: virtio: free vu_dev only with the contained struct device um: kmsg_dumper: always dump when not tty console um: stdio_console: Make preferred console um: return error from ioremap() um: ubd: fix command line handling of ubd
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds authored
Pull arm64 fixes from Catalin Marinas: "Fix the arm64 linear map range detection for tagged addresses and replace the bitwise operations with subtract (virt_addr_valid(), __is_lm_address(), __lm_to_phys())" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: Use simpler arithmetics for the linear map macros arm64: Do not pass tagged addresses to __is_lm_address()
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-traceLinus Torvalds authored
Pull tracing fixes from Steven Rostedt: - Initialize tracing-graph-pause at task creation, not start of function tracing, to avoid corrupting the pause counter. - Set "pause-on-trace" for latency tracers as that option breaks their output (regression). - Fix the wrong error return for setting kretprobes on future modules (before they are loaded). - Fix re-registering the same kretprobe. - Add missing value check for added RCU variable reload. * tag 'trace-v5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracepoint: Fix race between tracing and removing tracepoint kretprobe: Avoid re-registration of the same kretprobe earlier tracing/kprobe: Fix to support kretprobe events on unloaded modules tracing: Use pause-on-trace with the latency tracers fgraph: Initialize tracing_graph_pause at task creation
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds authored
Pull ARM SoC fixes from Arnd Bergmann: "The code fixes in this round are all for the Texas Instruments OMAP platform, addressing several regressions related to the ti-sysc interconnect changes that was merged in linux-5.11 and one recently introduced RCU usage warning. Tero Kristo updates his maintainer file entries as he is changing to a new employer. The other changes are for devicetree files across eight different platforms: TI OMAP: - multiple gpio related one-line fixes Allwinner/sunxi: - ARM: dts: sun7i: a20: bananapro: Fix ethernet phy-mode - soc: sunxi: mbus: Remove DE2 display engine compatibles NXP lpc32xx: - ARM: dts: lpc32xx: Revert set default clock rate of HCLK PLL STMicroelectronics stm32 - multiple minor fixes for DHCOM/DHCOR boards NXP Layerscape: - Fix DCFG address range on LS1046A SoC Amlogic meson: - fix reboot issue on odroid C4 - revert an ethernet change that caused a regression - meson-g12: Set FL-adj property value Rockchip: - multiple minor fixes on 64-bit rockchip machines Qualcomm: - Regression fixes for Lenovo Yoga touchpad and for interconnect configuration - Boot fixes for 'LPASS' clock configuration on two machines" * tag 'arm-soc-fixes-v5.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (31 commits) ARM: dts: lpc32xx: Revert set default clock rate of HCLK PLL ARM: dts: sun7i: a20: bananapro: Fix ethernet phy-mode arm64: dts: ls1046a: fix dcfg address range soc: sunxi: mbus: Remove DE2 display engine compatibles arm64: dts: meson: switch TFLASH_VDD_EN pin to open drain on Odroid-C4 Revert "arm64: dts: amlogic: add missing ethernet reset ID" arm64: dts: rockchip: Disable display for NanoPi R2S ARM: dts: omap4-droid4: Fix lost keypad slide interrupts for droid4 arm64: dts: rockchip: remove interrupt-names property from rk3399 vdec node drivers: bus: simple-pm-bus: Fix compatibility with simple-bus for auxdata ARM: OMAP2+: Fix booting for am335x after moving to simple-pm-bus ARM: OMAP2+: Fix suspcious RCU usage splats for omap_enter_idle_coupled ARM: dts: stm32: Fix GPIO hog flags on DHCOM DRC02 ARM: dts: stm32: Fix GPIO hog flags on DHCOM PicoITX ARM: dts: stm32: Fix GPIO hog names on DHCOM ARM: dts: stm32: Disable optional TSC2004 on DRC02 board ARM: dts: stm32: Disable WP on DHCOM uSD slot ARM: dts: stm32: Connect card-detect signal on DHCOM ARM: dts: stm32: Fix polarity of the DH DRC02 uSD card detect arm64: dts: qcom: sdm845: Reserve LPASS clocks in gcc ... -
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linuxLinus Torvalds authored
Pull gpio fixes from Bartosz Golaszewski: "Some more fixes from the GPIO subsystem for this release. This time it's only core fixes: - fix a memory leak in error path in gpiolib - clear debounce period in output mode in the character device code - remove shadowed variable" * tag 'gpio-fixes-for-v5.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: gpio: gpiolib: remove shadowed variable gpiolib: free device name on error path to fix kmemleak gpiolib: cdev: clear debounce period if line set to output
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Linus Torvalds authored
Merge tag 'platform-drivers-x86-v5.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform driver fixes from Hans de Goede: "Two last minute small but important fixes. The hp-wmi change fixes an issue which is actively being hit by users: https://bugzilla.redhat.com/show_bug.cgi?id=1918255 https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/3564 And the dell-wmi-sysman patch fixes a bug in the new dell-wmi-sysman driver which causes some systems to hang at boot when the driver loads" * tag 'platform-drivers-x86-v5.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: platform/x86: dell-wmi-sysman: fix a NULL pointer dereference platform/x86: hp-wmi: Disable tablet-mode reporting by default
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Arnd Bergmann authored
Merge tag 'sunxi-fixes-for-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/fixes One fix for a phy-mode ethernet issue, and one to fix the display output on SoCs with the Display Engine 2 * tag 'sunxi-fixes-for-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: ARM: dts: sun7i: a20: bananapro: Fix ethernet phy-mode soc: sunxi: mbus: Remove DE2 display engine compatibles Link: https://lore.kernel.org/r/f8298059-f9ca-43b4-9e29-35bc0e0c9b15.lettre@localhostSigned-off-by:
Arnd Bergmann <arnd@arndb.de>
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Alexandre Belloni authored
This reverts commit c17e9377. The lpc32xx clock driver is not able to actually change the PLL rate as this would require reparenting ARM_CLK, DDRAM_CLK, PERIPH_CLK to SYSCLK, then stop the PLL, update the register, restart the PLL and wait for the PLL to lock and finally reparent ARM_CLK, DDRAM_CLK, PERIPH_CLK to HCLK PLL. Currently, the HCLK driver simply updates the registers but this has no real effect and all the clock rate calculation end up being wrong. This is especially annoying for the peripheral (e.g. UARTs, I2C, SPI). Signed-off-by:
Alexandre Belloni <alexandre.belloni@bootlin.com> Tested-by:
Gregory CLEMENT <gregory.clement@bootlin.com> Link: https://lore.kernel.org/r/20210203090320.GA3760268@piout.net' Signed-off-by:
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Hermann Lauer authored
BPi Pro needs TX and RX delay for Gbit to work reliable and avoid high packet loss rates. The realtek phy driver overrides the settings of the pull ups for the delays, so fix this for BananaPro. Fix the phy-mode description to correctly reflect this so that the implementation doesn't reconfigure the delays incorrectly. This happened with commit bbc4d71d ("net: phy: realtek: fix rtl8211e rx/tx delay config"). Fixes: 10662a33 ("ARM: dts: sun7i: Add dts file for Bananapro board") Signed-off-by:
Hermann Lauer <Hermann.Lauer@uni-heidelberg.de> Signed-off-by:
Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20210128111842.GA11919@lemon.iwr.uni-heidelberg.de
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- 02 Feb, 2021 11 commits
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Arnd Bergmann authored
Merge tag 'imx-fixes-5.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes i.MX fixes for 5.11, round 3: - Fix DCFG address range on LS1046A SoC. * tag 'imx-fixes-5.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: arm64: dts: ls1046a: fix dcfg address range Link: https://lore.kernel.org/r/20210202071441.GP907@dragonSigned-off-by:
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git://github.com/ojeda/linuxLinus Torvalds authored
Pull clang-format update from Miguel Ojeda: "Update with the latest for_each macro list" * tag 'clang-format-for-linux-v5.11-rc7' of git://github.com/ojeda/linux: clang-format: Update with the latest for_each macro list
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git://git.infradead.org/users/hch/dma-mappingLinus Torvalds authored
Pull dma-mapping fix from Christoph Hellwig: "Fix a kernel crash in the new dma-mapping benchmark test (Barry Song)" * tag 'dma-mapping-5.11-1' of git://git.infradead.org/users/hch/dma-mapping: dma-mapping: benchmark: fix kernel crash when dma_map_single fails
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git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds authored
Pull vdpa fix from Michael Tsirkin: "A single mlx bugfix" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: vdpa/mlx5: Fix memory key MTT population
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds authored
Pull networking fixes from Jakub Kicinski: "Networking fixes for 5.11-rc7, including fixes from bpf and mac80211 trees. Current release - regressions: - ip_tunnel: fix mtu calculation - mlx5: fix function calculation for page trees Previous releases - regressions: - vsock: fix the race conditions in multi-transport support - neighbour: prevent a dead entry from updating gc_list - dsa: mv88e6xxx: override existent unicast portvec in port_fdb_add Previous releases - always broken: - bpf, cgroup: two copy_{from,to}_user() warn_on_once splats for BPF cgroup getsockopt infra when user space is trying to race against optlen, from Loris Reiff. - bpf: add missing fput() in BPF inode storage map update helper - udp: ipv4: manipulate network header of NATed UDP GRO fraglist - mac80211: fix station rate table updates on assoc - r8169: work around RTL8125 UDP HW bug - igc: report speed and duplex as unknown when device is runtime suspended - rxrpc: fix deadlock around release of dst cached on udp tunnel" * tag 'net-5.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (36 commits) net: hsr: align sup_multicast_addr in struct hsr_priv to u16 boundary net: ipa: fix two format specifier errors net: ipa: use the right accessor in ipa_endpoint_status_skip() net: ipa: be explicit about endianness net: ipa: add a missing __iomem attribute net: ipa: pass correct dma_handle to dma_free_coherent() r8169: fix WoL on shutdown if CONFIG_DEBUG_SHIRQ is set net/rds: restrict iovecs length for RDS_CMSG_RDMA_ARGS net: mvpp2: TCAM entry enable should be written after SRAM data net: lapb: Copy the skb before sending a packet net/mlx5e: Release skb in case of failure in tc update skb net/mlx5e: Update max_opened_tc also when channels are closed net/mlx5: Fix leak upon failure of rule creation net/mlx5: Fix function calculation for page trees docs: networking: swap words in icmp_errors_use_inbound_ifaddr doc udp: ipv4: manipulate network header of NATed UDP GRO fraglist net: ip_tunnel: fix mtu calculation vsock: fix the race conditions in multi-transport support net: sched: replaced invalid qdisc tree flush helper in qdisc_replace ibmvnic: device remove has higher precedence over reset ... -
Catalin Marinas authored
Because of the tagged addresses, the __is_lm_address() and __lm_to_phys() macros grew to some harder to understand bitwise operations using PAGE_OFFSET. Since these macros only accept untagged addresses, use a simple subtract operation. Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com> Acked-by:
Ard Biesheuvel <ardb@kernel.org> Cc: Will Deacon <will@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Link: https://lore.kernel.org/r/20210201190634.22942-3-catalin.marinas@arm.com
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Catalin Marinas authored
Commit 519ea6f1 ("arm64: Fix kernel address detection of __is_lm_address()") fixed the incorrect validation of addresses below PAGE_OFFSET. However, it no longer allowed tagged addresses to be passed to virt_addr_valid(). Fix this by explicitly resetting the pointer tag prior to invoking __is_lm_address(). This is consistent with the __lm_to_phys() macro. Fixes: 519ea6f1 ("arm64: Fix kernel address detection of __is_lm_address()") Signed-off-by:
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Andreas Oetken authored
sup_multicast_addr is passed to ether_addr_equal for address comparison which casts the address inputs to u16 leading to an unaligned access. Aligning the sup_multicast_addr to u16 boundary fixes the issue. Signed-off-by:
Andreas Oetken <andreas.oetken@siemens.com> Link: https://lore.kernel.org/r/20210202090304.2740471-1-ennoerlangen@gmail.comSigned-off-by:
Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linuxJakub Kicinski authored
Saeed Mahameed says: ==================== mlx5 fixes 2021-02-01 Please note the first patch in this series ("Fix function calculation for page trees") is fixing a regression due to previous fix in net which you didn't include in your previous rc pr. So I hope this series will make it into your next rc pr, so mlx5 won't be broken in the next rc. * tag 'mlx5-fixes-2021-02-01' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux: net/mlx5e: Release skb in case of failure in tc update skb net/mlx5e: Update max_opened_tc also when channels are closed net/mlx5: Fix leak upon failure of rule creation net/mlx5: Fix function calculation for page trees ==================== Link: https://lore.kernel.org/r/20210202070703.617251-1-saeed@kernel.orgSigned-off-by: -
Jakub Kicinski authored
Alex Elder says: ==================== net: ipa: a few bug fixes This series fixes four minor bugs. The first two are things that sparse points out. All four are very simple and each patch should explain itself pretty well. ==================== Link: https://lore.kernel.org/r/20210201232609.3524451-1-elder@linaro.orgSigned-off-by:
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Alex Elder authored
Fix two format specifiers that used %lu for a size_t in "ipa_mem.c". Signed-off-by:
Alex Elder <elder@linaro.org> Signed-off-by:
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