diff options
| author | Nikolay Aleksandrov <nikolay@nvidia.com> | 2020-09-22 09:30:13 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-09-23 22:24:34 +0200 |
| commit | 7eea629d07d459dfece80648c7f47f07498fdc9e (patch) | |
| tree | c03ff6585680236a8e51ffa3f68d228678123d30 /net/bridge | |
| parent | net: bridge: mdb: use extack in br_mdb_parse() (diff) | |
| download | linux-7eea629d07d459dfece80648c7f47f07498fdc9e.tar.xz linux-7eea629d07d459dfece80648c7f47f07498fdc9e.zip | |
net: bridge: mdb: move all port and bridge checks to br_mdb_add
To avoid doing duplicate device checks and searches (the same were done
in br_mdb_add and __br_mdb_add) pass the already found port to __br_mdb_add
and pull the bridge's netif_running and enabled multicast checks to
br_mdb_add. This would also simplify the future extack errors.
Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge')
| -rw-r--r-- | net/bridge/br_mdb.c | 24 |
1 files changed, 7 insertions, 17 deletions
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c index d4031f5554f7..92ab7369fee0 100644 --- a/net/bridge/br_mdb.c +++ b/net/bridge/br_mdb.c @@ -775,31 +775,18 @@ static int br_mdb_add_group(struct net_bridge *br, struct net_bridge_port *port, } static int __br_mdb_add(struct net *net, struct net_bridge *br, + struct net_bridge_port *p, struct br_mdb_entry *entry) { struct br_ip ip; - struct net_device *dev; - struct net_bridge_port *p = NULL; int ret; - if (!netif_running(br->dev) || !br_opt_get(br, BROPT_MULTICAST_ENABLED)) - return -EINVAL; - - if (entry->ifindex != br->dev->ifindex) { - dev = __dev_get_by_index(net, entry->ifindex); - if (!dev) - return -ENODEV; - - p = br_port_get_rtnl(dev); - if (!p || p->br != br || p->state == BR_STATE_DISABLED) - return -EINVAL; - } - __mdb_entry_to_br_ip(entry, &ip); spin_lock_bh(&br->multicast_lock); ret = br_mdb_add_group(br, p, &ip, entry); spin_unlock_bh(&br->multicast_lock); + return ret; } @@ -821,6 +808,9 @@ static int br_mdb_add(struct sk_buff *skb, struct nlmsghdr *nlh, br = netdev_priv(dev); + if (!netif_running(br->dev) || !br_opt_get(br, BROPT_MULTICAST_ENABLED)) + return -EINVAL; + if (entry->ifindex != br->dev->ifindex) { pdev = __dev_get_by_index(net, entry->ifindex); if (!pdev) @@ -840,12 +830,12 @@ static int br_mdb_add(struct sk_buff *skb, struct nlmsghdr *nlh, if (br_vlan_enabled(br->dev) && vg && entry->vid == 0) { list_for_each_entry(v, &vg->vlan_list, vlist) { entry->vid = v->vid; - err = __br_mdb_add(net, br, entry); + err = __br_mdb_add(net, br, p, entry); if (err) break; } } else { - err = __br_mdb_add(net, br, entry); + err = __br_mdb_add(net, br, p, entry); } return err; |