diff options
| -rw-r--r-- | lib/lz4/lz4_decompress.c | 6 | ||||
| -rw-r--r-- | lib/lz4/lz4defs.h | 2 |
2 files changed, 7 insertions, 1 deletions
diff --git a/lib/lz4/lz4_decompress.c b/lib/lz4/lz4_decompress.c index 0c9d3ad17e0f..4d0b59fa5550 100644 --- a/lib/lz4/lz4_decompress.c +++ b/lib/lz4/lz4_decompress.c @@ -260,7 +260,11 @@ static FORCE_INLINE int LZ4_decompress_generic( } } - memcpy(op, ip, length); + /* + * supports overlapping memory regions; only matters + * for in-place decompression scenarios + */ + LZ4_memmove(op, ip, length); ip += length; op += length; diff --git a/lib/lz4/lz4defs.h b/lib/lz4/lz4defs.h index 1a7fa9d9170f..369eb181d730 100644 --- a/lib/lz4/lz4defs.h +++ b/lib/lz4/lz4defs.h @@ -137,6 +137,8 @@ static FORCE_INLINE void LZ4_writeLE16(void *memPtr, U16 value) return put_unaligned_le16(value, memPtr); } +#define LZ4_memmove(dst, src, size) __builtin_memmove(dst, src, size) + static FORCE_INLINE void LZ4_copy8(void *dst, const void *src) { #if LZ4_ARCH64 |