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| author | Greg Ungerer <gerg@uclinux.org> | 2011-02-03 12:58:39 +0100 |
|---|---|---|
| committer | Greg Ungerer <gerg@uclinux.org> | 2011-02-16 00:43:16 +0100 |
| commit | 982cd252ca0b63c11fe398c09c6f2b41217c78c0 (patch) | |
| tree | fac6b90f443fdb1654c58ae86b1921f3e2a33aa3 /arch/m68k/include/asm/string.h | |
| parent | m68k: remove arch specific non-optimized memcmp() (diff) | |
| download | linux-982cd252ca0b63c11fe398c09c6f2b41217c78c0.tar.xz linux-982cd252ca0b63c11fe398c09c6f2b41217c78c0.zip | |
m68knommu: add optimize memmove() function
Add an m68k/coldfire optimized memmove() function for the m68knommu arch.
This is the same function as used by m68k. Simple speed tests show this
is faster once buffers are larger than 4 bytes, and significantly faster
on much larger buffers (4 times faster above about 100 bytes).
This also goes part of the way to fixing a regression caused by commit
ea61bc461d09e8d331a307916530aaae808c72a2 ("m68k/m68knommu: merge MMU and
non-MMU string.h"), which breaks non-coldfire non-mmu builds (which is
the 68x328 and 68360 families). They currently have no memmove() fucntion
defined, since there was none in the m68knommu/lib functions.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Diffstat (limited to 'arch/m68k/include/asm/string.h')
| -rw-r--r-- | arch/m68k/include/asm/string.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/m68k/include/asm/string.h b/arch/m68k/include/asm/string.h index ffc3c3f61243..32198454da70 100644 --- a/arch/m68k/include/asm/string.h +++ b/arch/m68k/include/asm/string.h @@ -99,10 +99,10 @@ static inline int strcmp(const char *cs, const char *ct) : "+a" (cs), "+a" (ct), "=d" (res)); return res; } +#endif /* CONFIG_COLDFIRE */ #define __HAVE_ARCH_MEMMOVE extern void *memmove(void *, const void *, __kernel_size_t); -#endif /* CONFIG_COLDFIRE */ #define memcmp(d, s, n) __builtin_memcmp(d, s, n) |