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net: bridge: multicast: factor out port multicast context

Browse source 
Factor out the port's multicast context into a separate structure which
will later be shared for per-port,vlan context. No functional changes
intended. We need the structure even if bridge multicast is not defined
to pass down as pointer to forwarding functions.

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nikolay Aleksandrov 2021-07-19 20:06:23 +03:00 committed by David S. Miller
parent 23d2b94043
commit 9632233e7d
5 changed files with 147 additions and 100 deletions
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10
net/bridge/br_mdb.c
View file

@ -29,16 +29,16 @@ static bool br_rports_have_mc_router(struct net_bridge *br)
static bool
br_ip4_rports_get_timer(struct net_bridge_port *port, unsigned long *timer)
{
*timer = br_timer_value(&port->ip4_mc_router_timer);
return !hlist_unhashed(&port->ip4_rlist);
*timer = br_timer_value(&port->multicast_ctx.ip4_mc_router_timer);
return !hlist_unhashed(&port->multicast_ctx.ip4_rlist);
}
static bool
br_ip6_rports_get_timer(struct net_bridge_port *port, unsigned long *timer)
{
#if IS_ENABLED(CONFIG_IPV6)
*timer = br_timer_value(&port->ip6_mc_router_timer);
return !hlist_unhashed(&port->ip6_rlist);
*timer = br_timer_value(&port->multicast_ctx.ip6_mc_router_timer);
return !hlist_unhashed(&port->multicast_ctx.ip6_rlist);
#else
*timer = 0;
return false;
@ -79,7 +79,7 @@ static int br_rports_fill_info(struct sk_buff *skb, struct netlink_callback *cb,
nla_put_u32(skb, MDBA_ROUTER_PATTR_TIMER,
max(ip4_timer, ip6_timer)) ||
nla_put_u8(skb, MDBA_ROUTER_PATTR_TYPE,
p->multicast_router) ||
p->multicast_ctx.multicast_router) ||
(have_ip4_mc_rtr &&
nla_put_u32(skb, MDBA_ROUTER_PATTR_INET_TIMER,
ip4_timer)) ||

188
net/bridge/br_multicast.c
View file

@ -1368,50 +1368,52 @@ static bool br_multicast_rport_del(struct hlist_node *rlist)
static bool br_ip4_multicast_rport_del(struct net_bridge_port *p)
{
return br_multicast_rport_del(&p->ip4_rlist);
return br_multicast_rport_del(&p->multicast_ctx.ip4_rlist);
}
static bool br_ip6_multicast_rport_del(struct net_bridge_port *p)
{
#if IS_ENABLED(CONFIG_IPV6)
return br_multicast_rport_del(&p->ip6_rlist);
return br_multicast_rport_del(&p->multicast_ctx.ip6_rlist);
#else
return false;
#endif
}
static void br_multicast_router_expired(struct net_bridge_port *port,
static void br_multicast_router_expired(struct net_bridge_mcast_port *pmctx,
struct timer_list *t,
struct hlist_node *rlist)
{
struct net_bridge *br = port->br;
struct net_bridge *br = pmctx->port->br;
bool del;
spin_lock(&br->multicast_lock);
if (port->multicast_router == MDB_RTR_TYPE_DISABLED ||
port->multicast_router == MDB_RTR_TYPE_PERM ||
if (pmctx->multicast_router == MDB_RTR_TYPE_DISABLED ||
pmctx->multicast_router == MDB_RTR_TYPE_PERM ||
timer_pending(t))
goto out;
del = br_multicast_rport_del(rlist);
br_multicast_rport_del_notify(port, del);
br_multicast_rport_del_notify(pmctx->port, del);
out:
spin_unlock(&br->multicast_lock);
}
static void br_ip4_multicast_router_expired(struct timer_list *t)
{
struct net_bridge_port *port = from_timer(port, t, ip4_mc_router_timer);
struct net_bridge_mcast_port *pmctx = from_timer(pmctx, t,
ip4_mc_router_timer);
br_multicast_router_expired(port, t, &port->ip4_rlist);
br_multicast_router_expired(pmctx, t, &pmctx->ip4_rlist);
}
#if IS_ENABLED(CONFIG_IPV6)
static void br_ip6_multicast_router_expired(struct timer_list *t)
{
struct net_bridge_port *port = from_timer(port, t, ip6_mc_router_timer);
struct net_bridge_mcast_port *pmctx = from_timer(pmctx, t,
ip6_mc_router_timer);
br_multicast_router_expired(port, t, &port->ip6_rlist);
br_multicast_router_expired(pmctx, t, &pmctx->ip6_rlist);
}
#endif
@ -1555,7 +1557,7 @@ static void br_multicast_send_query(struct net_bridge *br,
memset(&br_group.dst, 0, sizeof(br_group.dst));
if (port ? (own_query == &port->ip4_own_query) :
if (port ? (own_query == &port->multicast_ctx.ip4_own_query) :
(own_query == &br->ip4_own_query)) {
other_query = &br->ip4_other_query;
br_group.proto = htons(ETH_P_IP);
@ -1580,20 +1582,20 @@ static void br_multicast_send_query(struct net_bridge *br,
}
static void
br_multicast_port_query_expired(struct net_bridge_port *port,
br_multicast_port_query_expired(struct net_bridge_mcast_port *pmctx,
struct bridge_mcast_own_query *query)
{
struct net_bridge *br = port->br;
struct net_bridge *br = pmctx->port->br;
spin_lock(&br->multicast_lock);
if (port->state == BR_STATE_DISABLED ||
port->state == BR_STATE_BLOCKING)
if (pmctx->port->state == BR_STATE_DISABLED ||
pmctx->port->state == BR_STATE_BLOCKING)
goto out;
if (query->startup_sent < br->multicast_startup_query_count)
query->startup_sent++;
br_multicast_send_query(port->br, port, query);
br_multicast_send_query(pmctx->port->br, pmctx->port, query);
out:
spin_unlock(&br->multicast_lock);
@ -1601,17 +1603,19 @@ br_multicast_port_query_expired(struct net_bridge_port *port,
static void br_ip4_multicast_port_query_expired(struct timer_list *t)
{
struct net_bridge_port *port = from_timer(port, t, ip4_own_query.timer);
struct net_bridge_mcast_port *pmctx = from_timer(pmctx, t,
ip4_own_query.timer);
br_multicast_port_query_expired(port, &port->ip4_own_query);
br_multicast_port_query_expired(pmctx, &pmctx->ip4_own_query);
}
#if IS_ENABLED(CONFIG_IPV6)
static void br_ip6_multicast_port_query_expired(struct timer_list *t)
{
struct net_bridge_port *port = from_timer(port, t, ip6_own_query.timer);
struct net_bridge_mcast_port *pmctx = from_timer(pmctx, t,
ip6_own_query.timer);
br_multicast_port_query_expired(port, &port->ip6_own_query);
br_multicast_port_query_expired(pmctx, &pmctx->ip6_own_query);
}
#endif
@ -1666,23 +1670,38 @@ static int br_mc_disabled_update(struct net_device *dev, bool value,
return switchdev_port_attr_set(dev, &attr, extack);
}
static void br_multicast_port_ctx_init(struct net_bridge_port *port,
struct net_bridge_mcast_port *pmctx)
{
pmctx->port = port;
pmctx->multicast_router = MDB_RTR_TYPE_TEMP_QUERY;
timer_setup(&pmctx->ip4_mc_router_timer,
br_ip4_multicast_router_expired, 0);
timer_setup(&pmctx->ip4_own_query.timer,
br_ip4_multicast_port_query_expired, 0);
#if IS_ENABLED(CONFIG_IPV6)
timer_setup(&pmctx->ip6_mc_router_timer,
br_ip6_multicast_router_expired, 0);
timer_setup(&pmctx->ip6_own_query.timer,
br_ip6_multicast_port_query_expired, 0);
#endif
}
static void br_multicast_port_ctx_deinit(struct net_bridge_mcast_port *pmctx)
{
#if IS_ENABLED(CONFIG_IPV6)
del_timer_sync(&pmctx->ip6_mc_router_timer);
#endif
del_timer_sync(&pmctx->ip4_mc_router_timer);
}
int br_multicast_add_port(struct net_bridge_port *port)
{
int err;
port->multicast_router = MDB_RTR_TYPE_TEMP_QUERY;
port->multicast_eht_hosts_limit = BR_MCAST_DEFAULT_EHT_HOSTS_LIMIT;
br_multicast_port_ctx_init(port, &port->multicast_ctx);
timer_setup(&port->ip4_mc_router_timer,
br_ip4_multicast_router_expired, 0);
timer_setup(&port->ip4_own_query.timer,
br_ip4_multicast_port_query_expired, 0);
#if IS_ENABLED(CONFIG_IPV6)
timer_setup(&port->ip6_mc_router_timer,
br_ip6_multicast_router_expired, 0);
timer_setup(&port->ip6_own_query.timer,
br_ip6_multicast_port_query_expired, 0);
#endif
err = br_mc_disabled_update(port->dev,
br_opt_get(port->br,
BROPT_MULTICAST_ENABLED),
@ -1711,10 +1730,7 @@ void br_multicast_del_port(struct net_bridge_port *port)
hlist_move_list(&br->mcast_gc_list, &deleted_head);
spin_unlock_bh(&br->multicast_lock);
br_multicast_gc(&deleted_head);
del_timer_sync(&port->ip4_mc_router_timer);
#if IS_ENABLED(CONFIG_IPV6)
del_timer_sync(&port->ip6_mc_router_timer);
#endif
br_multicast_port_ctx_deinit(&port->multicast_ctx);
free_percpu(port->mcast_stats);
}
@ -1734,11 +1750,11 @@ static void __br_multicast_enable_port(struct net_bridge_port *port)
if (!br_opt_get(br, BROPT_MULTICAST_ENABLED) || !netif_running(br->dev))
return;
br_multicast_enable(&port->ip4_own_query);
br_multicast_enable(&port->multicast_ctx.ip4_own_query);
#if IS_ENABLED(CONFIG_IPV6)
br_multicast_enable(&port->ip6_own_query);
br_multicast_enable(&port->multicast_ctx.ip6_own_query);
#endif
if (port->multicast_router == MDB_RTR_TYPE_PERM) {
if (port->multicast_ctx.multicast_router == MDB_RTR_TYPE_PERM) {
br_ip4_multicast_add_router(br, port);
br_ip6_multicast_add_router(br, port);
}
@ -1766,12 +1782,12 @@ void br_multicast_disable_port(struct net_bridge_port *port)
br_multicast_find_del_pg(br, pg);
del |= br_ip4_multicast_rport_del(port);
del_timer(&port->ip4_mc_router_timer);
del_timer(&port->ip4_own_query.timer);
del_timer(&port->multicast_ctx.ip4_mc_router_timer);
del_timer(&port->multicast_ctx.ip4_own_query.timer);
del |= br_ip6_multicast_rport_del(port);
#if IS_ENABLED(CONFIG_IPV6)
del_timer(&port->ip6_mc_router_timer);
del_timer(&port->ip6_own_query.timer);
del_timer(&port->multicast_ctx.ip6_mc_router_timer);
del_timer(&port->multicast_ctx.ip6_own_query.timer);
#endif
br_multicast_rport_del_notify(port, del);
spin_unlock(&br->multicast_lock);
@ -2713,11 +2729,18 @@ br_multicast_rport_from_node(struct net_bridge *br,
struct hlist_head *mc_router_list,
struct hlist_node *rlist)
{
struct net_bridge_mcast_port *pmctx;
#if IS_ENABLED(CONFIG_IPV6)
if (mc_router_list == &br->ip6_mc_router_list)
return hlist_entry(rlist, struct net_bridge_port, ip6_rlist);
pmctx = hlist_entry(rlist, struct net_bridge_mcast_port,
ip6_rlist);
else
#endif
return hlist_entry(rlist, struct net_bridge_port, ip4_rlist);
pmctx = hlist_entry(rlist, struct net_bridge_mcast_port,
ip4_rlist);
return pmctx->port;
}
static struct hlist_node *
@ -2746,10 +2769,10 @@ static bool br_multicast_no_router_otherpf(struct net_bridge_port *port,
struct hlist_node *rnode)
{
#if IS_ENABLED(CONFIG_IPV6)
if (rnode != &port->ip6_rlist)
return hlist_unhashed(&port->ip6_rlist);
if (rnode != &port->multicast_ctx.ip6_rlist)
return hlist_unhashed(&port->multicast_ctx.ip6_rlist);
else
return hlist_unhashed(&port->ip4_rlist);
return hlist_unhashed(&port->multicast_ctx.ip4_rlist);
#else
return true;
#endif
@ -2793,7 +2816,7 @@ static void br_multicast_add_router(struct net_bridge *br,
static void br_ip4_multicast_add_router(struct net_bridge *br,
struct net_bridge_port *port)
{
br_multicast_add_router(br, port, &port->ip4_rlist,
br_multicast_add_router(br, port, &port->multicast_ctx.ip4_rlist,
&br->ip4_mc_router_list);
}
@ -2805,7 +2828,7 @@ static void br_ip6_multicast_add_router(struct net_bridge *br,
struct net_bridge_port *port)
{
#if IS_ENABLED(CONFIG_IPV6)
br_multicast_add_router(br, port, &port->ip6_rlist,
br_multicast_add_router(br, port, &port->multicast_ctx.ip6_rlist,
&br->ip6_mc_router_list);
#endif
}
@ -2828,8 +2851,8 @@ static void br_multicast_mark_router(struct net_bridge *br,
return;
}
if (port->multicast_router == MDB_RTR_TYPE_DISABLED ||
port->multicast_router == MDB_RTR_TYPE_PERM)
if (port->multicast_ctx.multicast_router == MDB_RTR_TYPE_DISABLED ||
port->multicast_ctx.multicast_router == MDB_RTR_TYPE_PERM)
return;
br_multicast_add_router(br, port, rlist, mc_router_list);
@ -2843,8 +2866,8 @@ static void br_ip4_multicast_mark_router(struct net_bridge *br,
struct hlist_node *rlist = NULL;
if (port) {
timer = &port->ip4_mc_router_timer;
rlist = &port->ip4_rlist;
timer = &port->multicast_ctx.ip4_mc_router_timer;
rlist = &port->multicast_ctx.ip4_rlist;
}
br_multicast_mark_router(br, port, timer, rlist,
@ -2859,8 +2882,8 @@ static void br_ip6_multicast_mark_router(struct net_bridge *br,
struct hlist_node *rlist = NULL;
if (port) {
timer = &port->ip6_mc_router_timer;
rlist = &port->ip6_rlist;
timer = &port->multicast_ctx.ip6_mc_router_timer;
rlist = &port->multicast_ctx.ip6_rlist;
}
br_multicast_mark_router(br, port, timer, rlist,
@ -3183,7 +3206,8 @@ static void br_ip4_multicast_leave_group(struct net_bridge *br,
if (ipv4_is_local_multicast(group))
return;
own_query = port ? &port->ip4_own_query : &br->ip4_own_query;
own_query = port ? &port->multicast_ctx.ip4_own_query :
&br->ip4_own_query;
memset(&br_group, 0, sizeof(br_group));
br_group.dst.ip4 = group;
@ -3207,7 +3231,8 @@ static void br_ip6_multicast_leave_group(struct net_bridge *br,
if (ipv6_addr_is_ll_all_nodes(group))
return;
own_query = port ? &port->ip6_own_query : &br->ip6_own_query;
own_query = port ? &port->multicast_ctx.ip6_own_query :
&br->ip6_own_query;
memset(&br_group, 0, sizeof(br_group));
br_group.dst.ip6 = *group;
@ -3668,10 +3693,10 @@ br_multicast_rport_del_notify(struct net_bridge_port *p, bool deleted)
/* For backwards compatibility for now, only notify if there is
* no multicast router anymore for both IPv4 and IPv6.
*/
if (!hlist_unhashed(&p->ip4_rlist))
if (!hlist_unhashed(&p->multicast_ctx.ip4_rlist))
return;
#if IS_ENABLED(CONFIG_IPV6)
if (!hlist_unhashed(&p->ip6_rlist))
if (!hlist_unhashed(&p->multicast_ctx.ip6_rlist))
return;
#endif
@ -3679,8 +3704,8 @@ br_multicast_rport_del_notify(struct net_bridge_port *p, bool deleted)
br_port_mc_router_state_change(p, false);
/* don't allow timer refresh */
if (p->multicast_router == MDB_RTR_TYPE_TEMP)
p->multicast_router = MDB_RTR_TYPE_TEMP_QUERY;
if (p->multicast_ctx.multicast_router == MDB_RTR_TYPE_TEMP)
p->multicast_ctx.multicast_router = MDB_RTR_TYPE_TEMP_QUERY;
}
int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val)
@ -3691,13 +3716,13 @@ int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val)
bool del = false;
spin_lock(&br->multicast_lock);
if (p->multicast_router == val) {
if (p->multicast_ctx.multicast_router == val) {
/* Refresh the temp router port timer */
if (p->multicast_router == MDB_RTR_TYPE_TEMP) {
mod_timer(&p->ip4_mc_router_timer,
if (p->multicast_ctx.multicast_router == MDB_RTR_TYPE_TEMP) {
mod_timer(&p->multicast_ctx.ip4_mc_router_timer,
now + br->multicast_querier_interval);
#if IS_ENABLED(CONFIG_IPV6)
mod_timer(&p->ip6_mc_router_timer,
mod_timer(&p->multicast_ctx.ip6_mc_router_timer,
now + br->multicast_querier_interval);
#endif
}
@ -3706,32 +3731,32 @@ int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val)
}
switch (val) {
case MDB_RTR_TYPE_DISABLED:
p->multicast_router = MDB_RTR_TYPE_DISABLED;
p->multicast_ctx.multicast_router = MDB_RTR_TYPE_DISABLED;
del |= br_ip4_multicast_rport_del(p);
del_timer(&p->ip4_mc_router_timer);
del_timer(&p->multicast_ctx.ip4_mc_router_timer);
del |= br_ip6_multicast_rport_del(p);
#if IS_ENABLED(CONFIG_IPV6)
del_timer(&p->ip6_mc_router_timer);
del_timer(&p->multicast_ctx.ip6_mc_router_timer);
#endif
br_multicast_rport_del_notify(p, del);
break;
case MDB_RTR_TYPE_TEMP_QUERY:
p->multicast_router = MDB_RTR_TYPE_TEMP_QUERY;
p->multicast_ctx.multicast_router = MDB_RTR_TYPE_TEMP_QUERY;
del |= br_ip4_multicast_rport_del(p);
del |= br_ip6_multicast_rport_del(p);
br_multicast_rport_del_notify(p, del);
break;
case MDB_RTR_TYPE_PERM:
p->multicast_router = MDB_RTR_TYPE_PERM;
del_timer(&p->ip4_mc_router_timer);
p->multicast_ctx.multicast_router = MDB_RTR_TYPE_PERM;
del_timer(&p->multicast_ctx.ip4_mc_router_timer);
br_ip4_multicast_add_router(br, p);
#if IS_ENABLED(CONFIG_IPV6)
del_timer(&p->ip6_mc_router_timer);
del_timer(&p->multicast_ctx.ip6_mc_router_timer);
#endif
br_ip6_multicast_add_router(br, p);
break;
case MDB_RTR_TYPE_TEMP:
p->multicast_router = MDB_RTR_TYPE_TEMP;
p->multicast_ctx.multicast_router = MDB_RTR_TYPE_TEMP;
br_ip4_multicast_mark_router(br, p);
br_ip6_multicast_mark_router(br, p);
break;
@ -3759,10 +3784,10 @@ static void br_multicast_start_querier(struct net_bridge *br,
continue;
if (query == &br->ip4_own_query)
br_multicast_enable(&port->ip4_own_query);
br_multicast_enable(&port->multicast_ctx.ip4_own_query);
#if IS_ENABLED(CONFIG_IPV6)
else
br_multicast_enable(&port->ip6_own_query);
br_multicast_enable(&port->multicast_ctx.ip6_own_query);
#endif
}
rcu_read_unlock();
@ -4071,7 +4096,8 @@ EXPORT_SYMBOL_GPL(br_multicast_has_querier_adjacent);
*/
bool br_multicast_has_router_adjacent(struct net_device *dev, int proto)
{
struct net_bridge_port *port, *p;
struct net_bridge_mcast_port *pmctx;
struct net_bridge_port *port;
bool ret = false;
rcu_read_lock();
@ -4081,9 +4107,9 @@ bool br_multicast_has_router_adjacent(struct net_device *dev, int proto)
switch (proto) {
case ETH_P_IP:
hlist_for_each_entry_rcu(p, &port->br->ip4_mc_router_list,
hlist_for_each_entry_rcu(pmctx, &port->br->ip4_mc_router_list,
ip4_rlist) {
if (p == port)
if (pmctx->port == port)
continue;
ret = true;
@ -4092,9 +4118,9 @@ bool br_multicast_has_router_adjacent(struct net_device *dev, int proto)
break;
#if IS_ENABLED(CONFIG_IPV6)
case ETH_P_IPV6:
hlist_for_each_entry_rcu(p, &port->br->ip6_mc_router_list,
hlist_for_each_entry_rcu(pmctx, &port->br->ip6_mc_router_list,
ip6_rlist) {
if (p == port)
if (pmctx->port == port)
continue;
ret = true;

2
net/bridge/br_netlink.c
View file

@ -287,7 +287,7 @@ static int br_port_fill_attrs(struct sk_buff *skb,
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
if (nla_put_u8(skb, IFLA_BRPORT_MULTICAST_ROUTER,
p->multicast_router) ||
p->multicast_ctx.multicast_router) ||
nla_put_u32(skb, IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT,
p->multicast_eht_hosts_limit) ||
nla_put_u32(skb, IFLA_BRPORT_MCAST_EHT_HOSTS_CNT,

45
net/bridge/br_private.h
View file

@ -89,6 +89,23 @@ struct bridge_mcast_stats {
};
#endif
/* net_bridge_mcast_port must be always defined due to forwarding stubs */
struct net_bridge_mcast_port {
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
struct net_bridge_port *port;
struct bridge_mcast_own_query ip4_own_query;
struct timer_list ip4_mc_router_timer;
struct hlist_node ip4_rlist;
#if IS_ENABLED(CONFIG_IPV6)
struct bridge_mcast_own_query ip6_own_query;
struct timer_list ip6_mc_router_timer;
struct hlist_node ip6_rlist;
#endif /* IS_ENABLED(CONFIG_IPV6) */
unsigned char multicast_router;
#endif /* CONFIG_BRIDGE_IGMP_SNOOPING */
};
struct br_tunnel_info {
__be64 tunnel_id;
struct metadata_dst __rcu *tunnel_dst;
@ -305,19 +322,13 @@ struct net_bridge_port {
struct kobject kobj;
struct rcu_head rcu;
struct net_bridge_mcast_port multicast_ctx;
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
struct bridge_mcast_own_query ip4_own_query;
struct timer_list ip4_mc_router_timer;
struct hlist_node ip4_rlist;
#if IS_ENABLED(CONFIG_IPV6)
struct bridge_mcast_own_query ip6_own_query;
struct timer_list ip6_mc_router_timer;
struct hlist_node ip6_rlist;
#endif /* IS_ENABLED(CONFIG_IPV6) */
struct bridge_mcast_stats __percpu *mcast_stats;
u32 multicast_eht_hosts_limit;
u32 multicast_eht_hosts_cnt;
unsigned char multicast_router;
struct bridge_mcast_stats __percpu *mcast_stats;
struct hlist_head mglist;
#endif
@ -879,11 +890,21 @@ br_multicast_get_first_rport_node(struct net_bridge *b, struct sk_buff *skb) {
static inline struct net_bridge_port *
br_multicast_rport_from_node_skb(struct hlist_node *rp, struct sk_buff *skb) {
struct net_bridge_mcast_port *mctx;
#if IS_ENABLED(CONFIG_IPV6)
if (skb->protocol == htons(ETH_P_IPV6))
return hlist_entry_safe(rp, struct net_bridge_port, ip6_rlist);
mctx = hlist_entry_safe(rp, struct net_bridge_mcast_port,
ip6_rlist);
else
#endif
return hlist_entry_safe(rp, struct net_bridge_port, ip4_rlist);
mctx = hlist_entry_safe(rp, struct net_bridge_mcast_port,
ip4_rlist);
if (mctx)
return mctx->port;
else
return NULL;
}
static inline bool br_ip4_multicast_is_router(struct net_bridge *br)

2
net/bridge/br_sysfs_if.c
View file

@ -244,7 +244,7 @@ BRPORT_ATTR_FLAG(isolated, BR_ISOLATED);
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
static ssize_t show_multicast_router(struct net_bridge_port *p, char *buf)
{
return sprintf(buf, "%d\n", p->multicast_router);
return sprintf(buf, "%d\n", p->multicast_ctx.multicast_router);
}
static int store_multicast_router(struct net_bridge_port *p,