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| author | Joe Perches <joe@perches.com> | 2020-06-11 04:41:32 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-11 05:14:17 +0300 |
| commit | e8ec04938c446e5f4dc53e0147f0f679995012ee (patch) | |
| tree | 2a3c9542688b96f85ed3f6c4935ccf00cb5ff367 | |
| parent | 3021e69219e2f3df6d01243000db32d1325cdd0d (diff) | |
| download | linux-e8ec04938c446e5f4dc53e0147f0f679995012ee.tar.xz | |
lib/lz4/lz4_decompress.c: document deliberate use of `&'
This operation was intentional, but tools such as smatch will warn that it
might not have been.
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Yann Collet <cyan@fb.com>
Cc: Vasily Averin <vvs@virtuozzo.com>
Cc: Gao Xiang <hsiangkao@aol.com>
Link: http://lkml.kernel.org/r/3bf931c6ea0cae3e23f3485801986859851b4f04.camel@perches.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | lib/lz4/lz4_decompress.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/lz4/lz4_decompress.c b/lib/lz4/lz4_decompress.c index 0c9d3ad17e0f..5371dab6b481 100644 --- a/lib/lz4/lz4_decompress.c +++ b/lib/lz4/lz4_decompress.c @@ -141,6 +141,9 @@ static FORCE_INLINE int LZ4_decompress_generic( * space in the output for those 18 bytes earlier, upon * entering the shortcut (in other words, there is a * combined check for both stages). + * + * The & in the likely() below is intentionally not && so that + * some compilers can produce better parallelized runtime code */ if ((endOnInput ? length != RUN_MASK : length <= 8) /* |