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[net-next,5/6] pppoe: slight optimization of addr compare

Message ID 52AEA89D.1000801@huawei.com
State Changes Requested, archived
Delegated to: David Miller
Headers show

Commit Message

Ding Tianhong Dec. 16, 2013, 7:15 a.m. UTC 
Joe Perches add ether_addr_equal_unaligned to test if
possibly unaligned to u16 Ethernet addresses are equal.

If CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS is set, this uses
the slightly faster generic routine ether_addr_equal,
otherwise this uses memcmp.

Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
---
 drivers/net/ppp/pppoe.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
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Patch

diff --git a/drivers/net/ppp/pppoe.c b/drivers/net/ppp/pppoe.c
index 82ee6ed..baed1ef 100644
--- a/drivers/net/ppp/pppoe.c
+++ b/drivers/net/ppp/pppoe.c
@@ -131,12 +131,13 @@  static inline struct pppoe_net *pppoe_pernet(struct net *net)
 
 static inline int cmp_2_addr(struct pppoe_addr *a, struct pppoe_addr *b)
 {
-	return a->sid == b->sid && !memcmp(a->remote, b->remote, ETH_ALEN);
+	return a->sid == b->sid &&
+		ether_addr_equal_unaligned(a->remote, b->remote);
 }
 
 static inline int cmp_addr(struct pppoe_addr *a, __be16 sid, char *addr)
 {
-	return a->sid == sid && !memcmp(a->remote, addr, ETH_ALEN);
+	return a->sid == sid && ether_addr_equal_unaligned(a->remote, addr);
 }
 
 #if 8 % PPPOE_HASH_BITS