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author | Tejun Heo <tj@kernel.org> | 2011-05-24 09:59:36 +0200 |
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committer | Tejun Heo <tj@kernel.org> | 2011-05-24 09:59:36 +0200 |
commit | 6988f20fe04e9ef3aea488cb8ab57fbeb78e12f0 (patch) | |
tree | c9d7fc50a2e2147a5ca07e3096e7eeb916ad2da9 /arch/m68k/lib/memcpy.c | |
parent | 0415b00d175e0d8945e6785aad21b5f157976ce0 (diff) | |
parent | 6ea0c34dac89611126455537552cffe6c7e832ad (diff) | |
download | blackbird-op-linux-6988f20fe04e9ef3aea488cb8ab57fbeb78e12f0.tar.gz blackbird-op-linux-6988f20fe04e9ef3aea488cb8ab57fbeb78e12f0.zip |
Merge branch 'fixes-2.6.39' into for-2.6.40
Diffstat (limited to 'arch/m68k/lib/memcpy.c')
-rw-r--r-- | arch/m68k/lib/memcpy.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/arch/m68k/lib/memcpy.c b/arch/m68k/lib/memcpy.c new file mode 100644 index 000000000000..b50dbcad4746 --- /dev/null +++ b/arch/m68k/lib/memcpy.c @@ -0,0 +1,62 @@ + +#include <linux/types.h> + +void * memcpy(void * to, const void * from, size_t n) +{ +#ifdef CONFIG_COLDFIRE + void *xto = to; + size_t temp; + + if (!n) + return xto; + if ((long) to & 1) + { + char *cto = to; + const char *cfrom = from; + *cto++ = *cfrom++; + to = cto; + from = cfrom; + n--; + } + if (n > 2 && (long) to & 2) + { + short *sto = to; + const short *sfrom = from; + *sto++ = *sfrom++; + to = sto; + from = sfrom; + n -= 2; + } + temp = n >> 2; + if (temp) + { + long *lto = to; + const long *lfrom = from; + for (; temp; temp--) + *lto++ = *lfrom++; + to = lto; + from = lfrom; + } + if (n & 2) + { + short *sto = to; + const short *sfrom = from; + *sto++ = *sfrom++; + to = sto; + from = sfrom; + } + if (n & 1) + { + char *cto = to; + const char *cfrom = from; + *cto = *cfrom; + } + return xto; +#else + const char *c_from = from; + char *c_to = to; + while (n-- > 0) + *c_to++ = *c_from++; + return((void *) to); +#endif +} |