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net: bridge: propagate error code and extack from br_mc_disabled_update

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Some Ethernet switches might only be able to support disabling multicast
snooping globally, which is an issue for example when several bridges
span the same physical device and request contradictory settings.

Propagate the return value of br_mc_disabled_update() such that this
limitation is transmitted correctly to user-space.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli
2021-04-14 22:22:57 +03:00
committed by David S. Miller
parent 4a65912fde
commit ae1ea84b33
4 changed files with 27 additions and 16 deletions
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3
net/bridge/br_private.h
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@@ -810,7 +810,8 @@ void br_multicast_flood(struct net_bridge_mdb_entry *mdst,
struct sk_buff *skb, bool local_rcv, bool local_orig);
int br_multicast_set_router(struct net_bridge *br, unsigned long val);
int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val);
int br_multicast_toggle(struct net_bridge *br, unsigned long val);
int br_multicast_toggle(struct net_bridge *br, unsigned long val,
struct netlink_ext_ack *extack);
int br_multicast_set_querier(struct net_bridge *br, unsigned long val);
int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val);
int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val);