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net: bridge: remove unneeded variable 'err'

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function br_multicast_toggle now always return 0,
so the variable 'err' is unneeded.
Also cleanup dead branch in br_changelink.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
YueHaibing 2018-12-17 17:46:23 +08:00 committed by David S. Miller
parent 8937388acb
commit a26d94bff4
2 changed files with 2 additions and 5 deletions
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3
net/bridge/br_multicast.c
View File

@ -1937,7 +1937,6 @@ static void br_multicast_start_querier(struct net_bridge *br,
int br_multicast_toggle(struct net_bridge *br, unsigned long val)
{
struct net_bridge_port *port;
int err = 0;
spin_lock_bh(&br->multicast_lock);
if (!!br_opt_get(br, BROPT_MULTICAST_ENABLED) == !!val)
@ -1958,7 +1957,7 @@ int br_multicast_toggle(struct net_bridge *br, unsigned long val)
unlock:
spin_unlock_bh(&br->multicast_lock);
return err;
return 0;
}
bool br_multicast_enabled(const struct net_device *dev)

4
net/bridge/br_netlink.c
View File

@ -1175,9 +1175,7 @@ static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
if (data[IFLA_BR_MCAST_SNOOPING]) {
u8 mcast_snooping = nla_get_u8(data[IFLA_BR_MCAST_SNOOPING]);
err = br_multicast_toggle(br, mcast_snooping);
if (err)
return err;
br_multicast_toggle(br, mcast_snooping);
}
if (data[IFLA_BR_MCAST_QUERY_USE_IFADDR]) {