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3238c359ac
linux/arch/arm64/mm
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Robin Murphy 3238c359ac arm64: dma-mapping: Fix FORCE_CONTIGUOUS buffer clearing 
We need to invalidate the caches *before* clearing the buffer via the
non-cacheable alias, else in the worst case __dma_flush_area() may
write back dirty lines over the top of our nice new zeros.

Fixes: dd65a941f6 ("arm64: dma-mapping: clear buffers allocated with FORCE_CONTIGUOUS flag")
Cc: <stable@vger.kernel.org> # 4.18.x-
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2018-12-11 11:55:32 +00:00
..
cache.S arm64: IPI each CPU after invalidating the I-cache for kernel mappings 2018-07-05 17:24:36 +01:00
context.c arm64: mm: Drop the unused cpu parameter 2018-10-09 17:17:23 +01:00
copypage.c arm64: Defer dcache flush in __cpu_copy_user_page 2015-12-17 11:07:13 +00:00
dma-mapping.c arm64: dma-mapping: Fix FORCE_CONTIGUOUS buffer clearing 2018-12-11 11:55:32 +00:00
dump.c arm64: dump: Use consistent capitalisation for page-table dumps 2018-09-10 16:15:23 +01:00
extable.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fault.c Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2018-10-24 11:22:39 +01:00
flush.c arm64: mm: Export __sync_icache_dcache() for xen-privcmd 2018-07-27 13:12:15 +01:00
hugetlbpage.c arm64: hugetlb: Avoid unnecessary clearing in huge_ptep_set_access_flags 2018-09-24 17:51:50 +01:00
init.c arm64: memblock: don't permit memblock resizing until linear mapping is up 2018-11-08 17:54:03 +00:00
ioremap.c arm64: use is_vmalloc_addr 2017-02-09 13:47:56 +00:00
kasan_init.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mmap.c exec: pass stack rlimit into mm layout functions 2018-04-11 10:28:37 -07:00
mmu.c arm64: memblock: don't permit memblock resizing until linear mapping is up 2018-11-08 17:54:03 +00:00
numa.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
pageattr.c arm64: mm: Use READ_ONCE/WRITE_ONCE when accessing page tables 2018-02-16 18:13:57 +00:00
pgd.c arm64: handle 52-bit addresses in TTBR 2017-12-22 17:35:21 +00:00
physaddr.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
proc.S arm64: mm: Support Common Not Private translations 2018-09-18 12:02:27 +01:00
ptdump_debugfs.c ARM64: dump: Convert to use DEFINE_SHOW_ATTRIBUTE macro 2018-07-02 10:36:37 +01:00