summaryrefslogtreecommitdiff
path: root/include/linux/jhash.h
diff options
context:
space:
mode:
authorIngo Molnar <mingo@kernel.org>2017-07-30 11:15:13 +0200
committerIngo Molnar <mingo@kernel.org>2017-07-30 11:15:13 +0200
commitf5db340f19f14a8df9dfd22d71fba1513e9f1f7e (patch)
tree131d3345bc987aee3c922624de816492e7f323a4 /include/linux/jhash.h
parentee438ec8f33c5af0d4a4ffb935c5b9272e8c2680 (diff)
parent38115f2f8cec8087d558c062e779c443a01f87d6 (diff)
Merge branch 'perf/urgent' into perf/core, to pick up latest fixes and refresh the tree
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/jhash.h')
-rw-r--r--include/linux/jhash.h29
1 files changed, 14 insertions, 15 deletions
diff --git a/include/linux/jhash.h b/include/linux/jhash.h
index 348c6f47e4cc..8037850f3104 100644
--- a/include/linux/jhash.h
+++ b/include/linux/jhash.h
@@ -85,19 +85,18 @@ static inline u32 jhash(const void *key, u32 length, u32 initval)
k += 12;
}
/* Last block: affect all 32 bits of (c) */
- /* All the case statements fall through */
switch (length) {
- case 12: c += (u32)k[11]<<24;
- case 11: c += (u32)k[10]<<16;
- case 10: c += (u32)k[9]<<8;
- case 9: c += k[8];
- case 8: b += (u32)k[7]<<24;
- case 7: b += (u32)k[6]<<16;
- case 6: b += (u32)k[5]<<8;
- case 5: b += k[4];
- case 4: a += (u32)k[3]<<24;
- case 3: a += (u32)k[2]<<16;
- case 2: a += (u32)k[1]<<8;
+ case 12: c += (u32)k[11]<<24; /* fall through */
+ case 11: c += (u32)k[10]<<16; /* fall through */
+ case 10: c += (u32)k[9]<<8; /* fall through */
+ case 9: c += k[8]; /* fall through */
+ case 8: b += (u32)k[7]<<24; /* fall through */
+ case 7: b += (u32)k[6]<<16; /* fall through */
+ case 6: b += (u32)k[5]<<8; /* fall through */
+ case 5: b += k[4]; /* fall through */
+ case 4: a += (u32)k[3]<<24; /* fall through */
+ case 3: a += (u32)k[2]<<16; /* fall through */
+ case 2: a += (u32)k[1]<<8; /* fall through */
case 1: a += k[0];
__jhash_final(a, b, c);
case 0: /* Nothing left to add */
@@ -131,10 +130,10 @@ static inline u32 jhash2(const u32 *k, u32 length, u32 initval)
k += 3;
}
- /* Handle the last 3 u32's: all the case statements fall through */
+ /* Handle the last 3 u32's */
switch (length) {
- case 3: c += k[2];
- case 2: b += k[1];
+ case 3: c += k[2]; /* fall through */
+ case 2: b += k[1]; /* fall through */
case 1: a += k[0];
__jhash_final(a, b, c);
case 0: /* Nothing left to add */