Diff below replaces a lookup to find the link-layer address by accessing
the if_sadl member directly. ok?
Index: net/if_ethersubr.c
===================================================================
RCS file: /home/ncvs/src/sys/net/if_ethersubr.c,v
retrieving revision 1.159
diff -u -p -r1.159 if_ethersubr.c
--- net/if_ethersubr.c 18 Nov 2013 20:22:23 -0000 1.159
+++ net/if_ethersubr.c 14 Jan 2014 09:52:49 -0000
@@ -491,21 +491,12 @@ ether_input(struct ifnet *ifp0, struct e
return;
}
if (ETHER_IS_MULTICAST(eh->ether_dhost)) {
+ /*
+ * If this is not a simplex interface, drop the packet
+ * if it came from us.
+ */
if ((ifp->if_flags & IFF_SIMPLEX) == 0) {
- struct ifaddr *ifa;
- struct sockaddr_dl *sdl = NULL;
-
- TAILQ_FOREACH(ifa, &ifp->if_addrlist, ifa_list) {
- if ((sdl =
- (struct sockaddr_dl *)ifa->ifa_addr) &&
- sdl->sdl_family == AF_LINK)
- break;
- }
- /*
- * If this is not a simplex interface, drop the packet
- * if it came from us.
- */
- if (sdl && bcmp(LLADDR(sdl), eh->ether_shost,
+ if (memcmp(LLADDR(ifp->if_sadl), eh->ether_shost,
ETHER_ADDR_LEN) == 0) {
m_freem(m);
return;
