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| author | Harvey Harrison <harvey.harrison@gmail.com> | 2008-04-29 10:03:30 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-29 17:06:27 +0200 |
| commit | 6510d41954dc6a9c8b1dbca7eaca0f23195ca727 (patch) | |
| tree | 868b5fac25c7c5b80cc5a88eaaab8bf3d693420d /include/asm-m68k/unaligned.h | |
| parent | kernel: add common infrastructure for unaligned access (diff) | |
| download | linux-6510d41954dc6a9c8b1dbca7eaca0f23195ca727.tar.xz linux-6510d41954dc6a9c8b1dbca7eaca0f23195ca727.zip | |
kernel: Move arches to use common unaligned access
Unaligned access is ok for the following arches:
cris, m68k, mn10300, powerpc, s390, x86
Arches that use the memmove implementation for native endian, and
the byteshifting for the opposite endianness.
h8300, m32r, xtensa
Packed struct for native endian, byteshifting for other endian:
alpha, blackfin, ia64, parisc, sparc, sparc64, mips, sh
m86knommu is generic_be for Coldfire, otherwise unaligned access is ok.
frv, arm chooses endianness based on compiler settings, uses the byteshifting
versions. Remove the unaligned trap handler from frv as it is now unused.
v850 is le, uses the byteshifting versions for both be and le.
Remove the now unused asm-generic implementation.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-m68k/unaligned.h')
| -rw-r--r-- | include/asm-m68k/unaligned.h | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/include/asm-m68k/unaligned.h b/include/asm-m68k/unaligned.h index 804cb3f888fe..77698f2dc33c 100644 --- a/include/asm-m68k/unaligned.h +++ b/include/asm-m68k/unaligned.h @@ -1,16 +1,13 @@ -#ifndef __M68K_UNALIGNED_H -#define __M68K_UNALIGNED_H +#ifndef _ASM_M68K_UNALIGNED_H +#define _ASM_M68K_UNALIGNED_H /* * The m68k can do unaligned accesses itself. - * - * The strange macros are there to make sure these can't - * be misused in a way that makes them not work on other - * architectures where unaligned accesses aren't as simple. */ +#include <linux/unaligned/access_ok.h> +#include <linux/unaligned/generic.h> -#define get_unaligned(ptr) (*(ptr)) +#define get_unaligned __get_unaligned_be +#define put_unaligned __put_unaligned_be -#define put_unaligned(val, ptr) ((void)( *(ptr) = (val) )) - -#endif +#endif /* _ASM_M68K_UNALIGNED_H */ |