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author | Rob Herring <robh@kernel.org> | 2018-12-13 11:20:36 -0600 |
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committer | Rob Herring <robh@kernel.org> | 2018-12-13 11:20:36 -0600 |
commit | acc2038738bd6f881e7a277ba14fa7c589fd3058 (patch) | |
tree | fd56524867a9b726b3e5d2cb040ff16b2f2a67a0 /arch/arm64/include/asm | |
parent | cd1cc0bef46fc8d8f9ebe82d2064d4f4bd5ecf16 (diff) | |
parent | 2c9b0b00af23cdc70d28d82e077dc1d280bcb84a (diff) | |
download | linux-stable-acc2038738bd6f881e7a277ba14fa7c589fd3058.tar.gz linux-stable-acc2038738bd6f881e7a277ba14fa7c589fd3058.tar.bz2 linux-stable-acc2038738bd6f881e7a277ba14fa7c589fd3058.zip |
Merge branch 'yaml-bindings-for-v4.21' into dt/next
Diffstat (limited to 'arch/arm64/include/asm')
-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__ |