diff options
Diffstat (limited to 'net/bridge/br_multicast.c')
-rw-r--r-- | net/bridge/br_multicast.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index 643b69d767f7..fe1482efd59c 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -1668,7 +1668,7 @@ static void br_multicast_send_query(struct net_bridge_mcast *brmctx, if (!br_multicast_ctx_should_use(brmctx, pmctx) || !br_opt_get(brmctx->br, BROPT_MULTICAST_ENABLED) || - !br_opt_get(brmctx->br, BROPT_MULTICAST_QUERIER)) + !brmctx->multicast_querier) return; memset(&br_group.dst, 0, sizeof(br_group.dst)); @@ -1747,14 +1747,16 @@ static void br_multicast_port_group_rexmit(struct timer_list *t) spin_lock(&br->multicast_lock); if (!netif_running(br->dev) || hlist_unhashed(&pg->mglist) || - !br_opt_get(br, BROPT_MULTICAST_ENABLED) || - !br_opt_get(br, BROPT_MULTICAST_QUERIER)) + !br_opt_get(br, BROPT_MULTICAST_ENABLED)) goto out; pmctx = br_multicast_pg_to_port_ctx(pg); if (!pmctx) goto out; brmctx = br_multicast_port_ctx_get_global(pmctx); + if (!brmctx->multicast_querier) + goto out; + if (pg->key.addr.proto == htons(ETH_P_IP)) other_query = &brmctx->ip4_other_query; #if IS_ENABLED(CONFIG_IPV6) @@ -1974,8 +1976,7 @@ static void __grp_src_query_marked_and_rexmit(struct net_bridge_mcast *brmctx, if (ent->flags & BR_SGRP_F_SEND) { ent->flags &= ~BR_SGRP_F_SEND; if (ent->timer.expires > lmqt) { - if (br_opt_get(brmctx->br, - BROPT_MULTICAST_QUERIER) && + if (brmctx->multicast_querier && other_query && !timer_pending(&other_query->timer)) ent->src_query_rexmit_cnt = lmqc; @@ -1984,7 +1985,7 @@ static void __grp_src_query_marked_and_rexmit(struct net_bridge_mcast *brmctx, } } - if (!br_opt_get(brmctx->br, BROPT_MULTICAST_QUERIER) || + if (!brmctx->multicast_querier || !other_query || timer_pending(&other_query->timer)) return; @@ -2015,7 +2016,7 @@ static void __grp_send_query_and_rexmit(struct net_bridge_mcast *brmctx, other_query = &brmctx->ip6_other_query; #endif - if (br_opt_get(brmctx->br, BROPT_MULTICAST_QUERIER) && + if (brmctx->multicast_querier && other_query && !timer_pending(&other_query->timer)) { lmi = now + brmctx->multicast_last_member_interval; pg->grp_query_rexmit_cnt = brmctx->multicast_last_member_count - 1; @@ -3316,7 +3317,7 @@ br_multicast_leave_group(struct net_bridge_mcast *brmctx, if (timer_pending(&other_query->timer)) goto out; - if (br_opt_get(brmctx->br, BROPT_MULTICAST_QUERIER)) { + if (brmctx->multicast_querier) { __br_multicast_send_query(brmctx, pmctx, NULL, NULL, &mp->addr, false, 0, NULL); @@ -4300,10 +4301,10 @@ int br_multicast_set_querier(struct net_bridge *br, unsigned long val) val = !!val; spin_lock_bh(&br->multicast_lock); - if (br_opt_get(br, BROPT_MULTICAST_QUERIER) == val) + if (brmctx->multicast_querier == val) goto unlock; - br_opt_toggle(br, BROPT_MULTICAST_QUERIER, !!val); + WRITE_ONCE(brmctx->multicast_querier, val); if (!val) goto unlock; |