diff options
Diffstat (limited to 'arch/arm64/include/asm/processor.h')
| -rw-r--r-- | arch/arm64/include/asm/processor.h | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h index 2bf6691371c2..6b0d4dff5012 100644 --- a/arch/arm64/include/asm/processor.h +++ b/arch/arm64/include/asm/processor.h @@ -24,14 +24,15 @@ #define KERNEL_DS UL(-1) #define USER_DS (TASK_SIZE_64 - 1) -#ifndef __ASSEMBLY__ - /* - * Default implementation of macro that returns current - * instruction pointer ("program counter"). + * 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 current_text_addr() ({ __label__ _l; _l: &&_l;}) +#define NET_IP_ALIGN 0 +#ifndef __ASSEMBLY__ #ifdef __KERNEL__ #include <linux/build_bug.h> |
