diff options
author | David S. Miller <davem@davemloft.net> | 2012-10-02 23:02:10 -0400 |
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committer | David S. Miller <davem@davemloft.net> | 2012-10-02 23:02:10 -0400 |
commit | 954f9ac43b87b44152b8c21163cefd466a87145e (patch) | |
tree | 31c4197f975c66c96976948663e6ce844900b41a /arch/s390/boot/compressed/misc.c | |
parent | 1b62ca7bf5775bed048032b7e779561e1fe66aa0 (diff) | |
parent | 7fe0b14b725d6d09a1d9e1409bd465cb88b587f9 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
There's a Niagara 2 memcpy fix in this tree and I have
a Kconfig fix from Dave Jones which requires the sparc-next
changes which went upstream yesterday.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/s390/boot/compressed/misc.c')
-rw-r--r-- | arch/s390/boot/compressed/misc.c | 45 |
1 files changed, 24 insertions, 21 deletions
diff --git a/arch/s390/boot/compressed/misc.c b/arch/s390/boot/compressed/misc.c index 465eca756feb..c4c6a1cf221b 100644 --- a/arch/s390/boot/compressed/misc.c +++ b/arch/s390/boot/compressed/misc.c @@ -71,34 +71,37 @@ void *memset(void *s, int c, size_t n) { char *xs; - if (c == 0) - return __builtin_memset(s, 0, n); - - xs = (char *) s; - if (n > 0) - do { - *xs++ = c; - } while (--n > 0); + xs = s; + while (n--) + *xs++ = c; return s; } -void *memcpy(void *__dest, __const void *__src, size_t __n) +void *memcpy(void *dest, const void *src, size_t n) { - return __builtin_memcpy(__dest, __src, __n); + const char *s = src; + char *d = dest; + + while (n--) + *d++ = *s++; + return dest; } -void *memmove(void *__dest, __const void *__src, size_t __n) +void *memmove(void *dest, const void *src, size_t n) { - char *d; - const char *s; - - if (__dest <= __src) - return __builtin_memcpy(__dest, __src, __n); - d = __dest + __n; - s = __src + __n; - while (__n--) - *--d = *--s; - return __dest; + const char *s = src; + char *d = dest; + + if (d <= s) { + while (n--) + *d++ = *s++; + } else { + d += n; + s += n; + while (n--) + *--d = *--s; + } + return dest; } static void error(char *x) |