| commit | 11ec50caedb56e3a87715edeff6a1852e6ae5416 | [log] [tgz] |
|---|---|---|
| author | Will Deacon <will.deacon@arm.com> | Thu Dec 12 17:40:22 2013 +0000 |
| committer | Linus Torvalds <torvalds@linux-foundation.org> | Thu Dec 12 10:39:01 2013 -0800 |
| tree | a94b6a3d2456800197d67effa2677d426d00d31d | |
| parent | a5c21dcefa1c3d759457a604b3cfc4af29c8713f [diff] |
word-at-a-time: provide generic big-endian zero_bytemask implementation Whilst architectures may be able to do better than this (which they can, by simply defining their own macro), this is a generic stab at a zero_bytemask implementation for the asm-generic, big-endian word-at-a-time implementation. On arm64, a clz instruction is used to implement the fls efficiently. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>