Merge pull request #71 from lorelei-sakai/fix/murmurhash_unaligned

Remove u64 alignment requirement in murmurhash3 computations
dm-vdo · Oct 31, 2024 · 6e3446b · 6e3446b
2 parents 5aba5bd + d0e4db8
commit 6e3446b
Showing 1 changed file with 2 additions and 5 deletions.
diff --git a/drivers/md/dm-vdo/murmurhash3.c b/drivers/md/dm-vdo/murmurhash3.c
@@ -44,14 +44,11 @@ void murmurhash3_128(const void *key, const int len, const u32 seed, void *out)
 	u64 *hash_out = out;
 
 	/* body */
-
-	const u64 *blocks = (const u64 *)(data);
-
 	int i;
 
 	for (i = 0; i < nblocks; i++) {
-		u64 k1 = get_unaligned_le64(&blocks[i * 2]);
-		u64 k2 = get_unaligned_le64(&blocks[i * 2 + 1]);
+		u64 k1 = get_unaligned_le64(&data[i * 16]);
+		u64 k2 = get_unaligned_le64(&data[i * 16 + 8]);
 
 		k1 *= c1;
 		k1 = ROTL64(k1, 31);