ipv6: send only one NEWLINK when RA causes changes
Signed-off-by: Marius Tomaschewski <mt@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 12fff09..64a7135 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1079,6 +1079,7 @@
int optlen;
unsigned int pref = 0;
__u32 old_if_flags;
+ bool send_ifinfo_notify = false;
__u8 *opt = (__u8 *)(ra_msg + 1);
@@ -1158,7 +1159,7 @@
IF_RA_OTHERCONF : 0);
if (old_if_flags != in6_dev->if_flags)
- inet6_ifinfo_notify(RTM_NEWLINK, in6_dev);
+ send_ifinfo_notify = true;
if (!in6_dev->cnf.accept_ra_defrtr) {
ND_PRINTK(2, info,
@@ -1261,7 +1262,7 @@
rtime = HZ/10;
NEIGH_VAR_SET(in6_dev->nd_parms, RETRANS_TIME, rtime);
in6_dev->tstamp = jiffies;
- inet6_ifinfo_notify(RTM_NEWLINK, in6_dev);
+ send_ifinfo_notify = true;
}
rtime = ntohl(ra_msg->reachable_time);
@@ -1278,11 +1279,17 @@
GC_STALETIME, 3 * rtime);
in6_dev->nd_parms->reachable_time = neigh_rand_reach_time(rtime);
in6_dev->tstamp = jiffies;
- inet6_ifinfo_notify(RTM_NEWLINK, in6_dev);
+ send_ifinfo_notify = true;
}
}
}
+ /*
+ * Send a notify if RA changed managed/otherconf flags or timer settings
+ */
+ if (send_ifinfo_notify)
+ inet6_ifinfo_notify(RTM_NEWLINK, in6_dev);
+
skip_linkparms:
/*