diff options
| author | Will Deacon <will.deacon@arm.com> | 2013-05-23 21:24:21 +0400 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2013-08-12 15:25:44 +0400 |
| commit | 792a843a9f353d3e2474b6f5057b7eaecba41675 (patch) | |
| tree | 64624d83a114dbd2e224f20d72a7baff3d6102ee /arch/arm/mm | |
| parent | c095ba7224d8edc71dcef0d655911399a8bd4a3f (diff) | |
| download | linux-792a843a9f353d3e2474b6f5057b7eaecba41675.tar.xz | |
ARM: mm: remove redundant dsb() prior to range TLB invalidation
The kernel TLB range invalidation functions already contain dsb
instructions before and after the maintenance, so there is no need to
introduce additional barriers.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm/mm')
| -rw-r--r-- | arch/arm/mm/dma-mapping.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index 7f9b1798c6cf..0c17f69a8286 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -455,7 +455,6 @@ static void __dma_remap(struct page *page, size_t size, pgprot_t prot) unsigned end = start + size; apply_to_page_range(&init_mm, start, size, __dma_update_pte, &prot); - dsb(); flush_tlb_kernel_range(start, end); } |