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Commit 4806126d authored by Al Viro's avatar Al Viro Committed by David S. Miller
Browse files

[SUNRPC]: annotate hash_ip() 



Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8a74ff77

net/sunrpc/svcauth_unix.c

+4 −4
Original line number Diff line number Diff line
@@ -101,9 +101,9 @@ static void ip_map_put(struct kref *kref) 
 * IP addresses in reverse-endian (i.e. on a little-endian machine).

 * So use a trivial but reliable hash instead

 */

static inline int hash_ip(unsigned long ip)

static inline int hash_ip(__be32 ip)

{

	int hash = ip ^ (ip>>16);

	int hash = (__force u32)ip ^ ((__force u32)ip>>16);

	return (hash ^ (hash>>8)) & 0xff;

}

#endif
@@ -284,7 +284,7 @@ static struct ip_map *ip_map_lookup(char *class, struct in_addr addr) 
	ip.m_addr = addr;

	ch = sunrpc_cache_lookup(&ip_map_cache, &ip.h,

				 hash_str(class, IP_HASHBITS) ^

				 hash_ip((unsigned long)addr.s_addr));

				 hash_ip(addr.s_addr));



	if (ch)

		return container_of(ch, struct ip_map, h);
@@ -313,7 +313,7 @@ static int ip_map_update(struct ip_map *ipm, struct unix_domain *udom, time_t ex 
	ch = sunrpc_cache_update(&ip_map_cache,

				 &ip.h, &ipm->h,

				 hash_str(ipm->m_class, IP_HASHBITS) ^

				 hash_ip((unsigned long)ipm->m_addr.s_addr));

				 hash_ip(ipm->m_addr.s_addr));

	if (!ch)

		return -ENOMEM;

	cache_put(ch, &ip_map_cache);