[NET]: Cosmetic cleanups of jhash code.

- Consistent naming (i.e. jhash_xxx)
- Reduces the 2&1 word variants to call jhash_3words()
- Replaces __inline__ with inline.

include/linux/jhash.h

@@ -41,7 +41,7 @@
  * of bytes.  No alignment or length assumptions are made about
  * the input key.
  */
-static __inline__ u32 jenkins_hash(void *key, u32 length, u32 initval)
+static inline u32 jhash(void *key, u32 length, u32 initval)
 {
 	u32 a, b, c, len;
 	u8 *k = key;
@@ -84,7 +84,7 @@ static __inline__ u32 jenkins_hash(void *key, u32 length, u32 initval)
 /* A special optimized version that handles 1 or more of u32s.
  * The length parameter here is the number of u32s in the key.
  */
-static __inline__ u32 hash2(u32 *k, u32 length, u32 initval)
+static inline u32 jhash2(u32 *k, u32 length, u32 initval)
 {
 	u32 a, b, c, len;
 
@@ -119,8 +119,7 @@ static __inline__ u32 hash2(u32 *k, u32 length, u32 initval)
  * NOTE: In partilar the "c += length; __jhash_mix(a,b,c);" normally
  *       done at the end is not done here.
  */
-static __inline__ u32 jenkins_hash_3words(u32 a, u32 b, u32 c,
-					  u32 initval)
+static inline u32 jhash_3words(u32 a, u32 b, u32 c, u32 initval)
 {
 	a += JHASH_GOLDEN_RATIO;
 	b += JHASH_GOLDEN_RATIO;
@@ -131,31 +130,14 @@ static __inline__ u32 jenkins_hash_3words(u32 a, u32 b, u32 c,
 	return c;
 }
 
-static __inline__ u32 jenkins_hash_2words(u32 a, u32 b, u32 initval)
+static inline u32 jhash_2words(u32 a, u32 b, u32 initval)
 {
-	u32 c = 0;
-
-	a += JHASH_GOLDEN_RATIO;
-	b += JHASH_GOLDEN_RATIO;
-	c += initval;
-
-	__jhash_mix(a, b, c);
-
-	return c;
+	return jhash_3words(a, b, 0, initval);
 }
 
-static __inline__ u32 jenkins_hash_1word(u32 a, u32 initval)
+static inline u32 jhash_1word(u32 a, u32 initval)
 {
-	u32 b = 0;
-	u32 c = 0;
-
-	a += JHASH_GOLDEN_RATIO;
-	b += JHASH_GOLDEN_RATIO;
-	c += initval;
-
-	__jhash_mix(a, b, c);
-
-	return c;
+	return jhash_3words(a, 0, 0, initval);
 }
 
 #endif /* _LINUX_JHASH_H */

net/ipv4/netfilter/ip_conntrack_core.c

@@ -115,12 +115,10 @@ hash_conntrack(const struct ip_conntrack_tuple *tuple)
 #if 0
 	dump_tuple(tuple);
 #endif
-	return (jenkins_hash_3words(tuple->src.ip,
-				    (tuple->dst.ip ^ tuple->dst.protonum),
-				    (tuple->src.u.all |
-				     (tuple->dst.u.all << 16)),
-				    ip_conntrack_hash_rnd)
-		% ip_conntrack_htable_size);
+	return (jhash_3words(tuple->src.ip,
+	                     (tuple->dst.ip ^ tuple->dst.protonum),
+	                     (tuple->src.u.all | (tuple->dst.u.all << 16)),
+	                     ip_conntrack_hash_rnd) % ip_conntrack_htable_size);
 }
 
 int

net/ipv4/route.c

@@ -207,7 +207,7 @@ static int rt_intern_hash(unsigned hash, struct rtable *rth,
 
 static unsigned int rt_hash_code(u32 daddr, u32 saddr, u8 tos)
 {
-	return (jenkins_hash_3words(daddr, saddr, (u32) tos, rt_hash_rnd)
+	return (jhash_3words(daddr, saddr, (u32) tos, rt_hash_rnd)
 		& rt_hash_mask);
 }
 

net/ipv4/tcp_ipv4.c

@@ -886,8 +886,7 @@ static __inline__ int tcp_v4_iif(struct sk_buff *skb)
 
 static __inline__ u32 tcp_v4_synq_hash(u32 raddr, u16 rport, u32 rnd)
 {
-	return (jenkins_hash_2words(raddr, (u32) rport, rnd)
-		& (TCP_SYNQ_HSIZE - 1));
+	return (jhash_2words(raddr, (u32) rport, rnd) & (TCP_SYNQ_HSIZE - 1));
 }
 
 static struct open_request *tcp_v4_search_req(struct tcp_opt *tp,

net/ipv6/tcp_ipv6.c

@@ -390,10 +390,9 @@ __inline__ struct sock *tcp_v6_lookup(struct in6_addr *saddr, u16 sport,
 
 static u32 tcp_v6_synq_hash(struct in6_addr *raddr, u16 rport, u32 rnd)
 {
-	return (jenkins_hash_3words(raddr->s6_addr32[0] ^ raddr->s6_addr32[1],
-				    raddr->s6_addr32[2] ^ raddr->s6_addr32[3],
-				    (u32) rport, rnd)
-		& (TCP_SYNQ_HSIZE - 1));
+	return (jhash_3words(raddr->s6_addr32[0] ^ raddr->s6_addr32[1],
+	                     raddr->s6_addr32[2] ^ raddr->s6_addr32[3],
+	                     (u32) rport, rnd) & (TCP_SYNQ_HSIZE - 1));
 }
 
 static struct open_request *tcp_v6_search_req(struct tcp_opt *tp,