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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-11 18:48:25 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-11 18:48:25 -0800 |
| commit | c17a1ca14cbba5585df67544711b6d04bcc8e240 (patch) | |
| tree | 08935d5f57470bd26b8a6c6dca782cb195644eab /arch/arm64/include/asm/processor.h | |
| parent | 596f63da42b92863b40ea4eb29c5b40bfa3e0ef5 (diff) | |
| parent | ccda4af0f4b92f7b4c308d3acc262f4a7e3affad (diff) | |
Merge 4.20-rc2 into tty-next
We want the tty/serial fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arm64/include/asm/processor.h')
| -rw-r--r-- | arch/arm64/include/asm/processor.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h index 3e2091708b8e..6b0d4dff5012 100644 --- a/arch/arm64/include/asm/processor.h +++ b/arch/arm64/include/asm/processor.h @@ -24,6 +24,14 @@ #define KERNEL_DS UL(-1) #define USER_DS (TASK_SIZE_64 - 1) +/* + * On arm64 systems, unaligned accesses by the CPU are cheap, and so there is + * no point in shifting all network buffers by 2 bytes just to make some IP + * header fields appear aligned in memory, potentially sacrificing some DMA + * performance on some platforms. + */ +#define NET_IP_ALIGN 0 + #ifndef __ASSEMBLY__ #ifdef __KERNEL__ |