diff options
Diffstat (limited to 'arch/microblaze/lib/memset.c')
| -rw-r--r-- | arch/microblaze/lib/memset.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/arch/microblaze/lib/memset.c b/arch/microblaze/lib/memset.c index 4df851d41a29..ecfb663e1fc1 100644 --- a/arch/microblaze/lib/memset.c +++ b/arch/microblaze/lib/memset.c @@ -33,22 +33,23 @@ #ifdef __HAVE_ARCH_MEMSET void *memset(void *v_src, int c, __kernel_size_t n) { - char *src = v_src; #ifdef CONFIG_OPT_LIB_FUNCTION uint32_t *i_src; - uint32_t w32; + uint32_t w32 = 0; #endif /* Truncate c to 8 bits */ c = (c & 0xFF); #ifdef CONFIG_OPT_LIB_FUNCTION - /* Make a repeating word out of it */ - w32 = c; - w32 |= w32 << 8; - w32 |= w32 << 16; + if (unlikely(c)) { + /* Make a repeating word out of it */ + w32 = c; + w32 |= w32 << 8; + w32 |= w32 << 16; + } - if (n >= 4) { + if (likely(n >= 4)) { /* Align the destination to a word boundary */ /* This is done in an endian independant manner */ switch ((unsigned) src & 3) { |