diff options
| author | roopa <roopa@cumulusnetworks.com> | 2013-04-22 14:56:49 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-04-29 17:40:26 +0200 |
| commit | b0a397fb352e65e3b6501dca9662617a18862ef1 (patch) | |
| tree | 951ed994f24b426160e548d86c869becbda37f51 /net/bridge/br_fdb.c | |
| parent | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsh... (diff) | |
| download | linux-b0a397fb352e65e3b6501dca9662617a18862ef1.tar.xz linux-b0a397fb352e65e3b6501dca9662617a18862ef1.zip | |
bridge: Add fdb dst check during fdb update
Current bridge fdb update code does not seem to update the port
during fdb update. This patch adds a check for fdb dst (port)
change during fdb update. Also rearranges the call to
fdb_notify to send only one notification for create and update.
Changelog:
v2 - Change notify flag to bool
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_fdb.c')
| -rw-r--r-- | net/bridge/br_fdb.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c index c581f1200ef7..ebfa4443c69b 100644 --- a/net/bridge/br_fdb.c +++ b/net/bridge/br_fdb.c @@ -615,6 +615,7 @@ static int fdb_add_entry(struct net_bridge_port *source, const __u8 *addr, struct net_bridge *br = source->br; struct hlist_head *head = &br->hash[br_mac_hash(addr, vid)]; struct net_bridge_fdb_entry *fdb; + bool modified = false; fdb = fdb_find(head, addr, vid); if (fdb == NULL) { @@ -624,10 +625,16 @@ static int fdb_add_entry(struct net_bridge_port *source, const __u8 *addr, fdb = fdb_create(head, source, addr, vid); if (!fdb) return -ENOMEM; - fdb_notify(br, fdb, RTM_NEWNEIGH); + + modified = true; } else { if (flags & NLM_F_EXCL) return -EEXIST; + + if (fdb->dst != source) { + fdb->dst = source; + modified = true; + } } if (fdb_to_nud(fdb) != state) { @@ -639,7 +646,12 @@ static int fdb_add_entry(struct net_bridge_port *source, const __u8 *addr, } else fdb->is_local = fdb->is_static = 0; - fdb->updated = fdb->used = jiffies; + modified = true; + } + + fdb->used = jiffies; + if (modified) { + fdb->updated = jiffies; fdb_notify(br, fdb, RTM_NEWNEIGH); } |