Re: [net-next v2 06/11] net: bridge: mcast: prepare expiry functions for mcast router split

Nikolay Aleksandrov
2021-05-11T09:17:12Z

On 09/05/2021 22:45, Linus Lüssing wrote:
> In preparation for the upcoming split of multicast router state into
> their IPv4 and IPv6 variants move the protocol specific timer access to
> an ip4 wrapper function.
>
> Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
> ---
> net/bridge/br_multicast.c | 31 ++++++++++++++++++++++---------
> 1 file changed, 22 insertions(+), 9 deletions(-)
>
> diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
> index 048b5b9..6c844b2 100644
> --- a/net/bridge/br_multicast.c
> +++ b/net/bridge/br_multicast.c
> @@ -1354,16 +1354,16 @@ static int br_ip6_multicast_add_group(struct net_bridge *br,
> }
> #endif
>
> -static void br_multicast_router_expired(struct timer_list *t)
> +static void br_multicast_router_expired(struct net_bridge_port *port,
> + struct timer_list *t,
> + struct hlist_node *rlist)
> {
> - struct net_bridge_port *port =
> - from_timer(port, t, ip4_mc_router_timer);
> struct net_bridge *br = port->br;
>
> spin_lock(&br->multicast_lock);
> if (port->multicast_router == MDB_RTR_TYPE_DISABLED ||
> port->multicast_router == MDB_RTR_TYPE_PERM ||
> - timer_pending(&port->ip4_mc_router_timer))
> + timer_pending(t))
> goto out;
>
> __del_port_router(port);
> @@ -1371,6 +1371,13 @@ 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);
> +
> + br_multicast_router_expired(port, t, &port->ip4_rlist);
> +}
> +
> static void br_mc_router_state_change(struct net_bridge *p,
> bool is_mc_router)
> {
> @@ -1384,10 +1391,9 @@ static void br_mc_router_state_change(struct net_bridge *p,
> switchdev_port_attr_set(p->dev, &attr, NULL);
> }
>
> -static void br_multicast_local_router_expired(struct timer_list *t)
> +static void br_multicast_local_router_expired(struct net_bridge *br,
> + struct timer_list *timer)
> {
> - struct net_bridge *br = from_timer(br, t, ip4_mc_router_timer);
> -
> spin_lock(&br->multicast_lock);
> if (br->multicast_router == MDB_RTR_TYPE_DISABLED ||
> br->multicast_router == MDB_RTR_TYPE_PERM ||
> @@ -1400,6 +1406,13 @@ out:
> spin_unlock(&br->multicast_lock);
> }
>
> +static inline void br_ip4_multicast_local_router_expired(struct timer_list *t)
> +{
> + struct net_bridge *br = from_timer(br, t, ip4_mc_router_timer);
> +
> + br_multicast_local_router_expired(br, t);
> +}
> +

Same comment about inlines in .c files, please move them to br_private.h or drop the inline

> static void br_multicast_querier_expired(struct net_bridge *br,
> struct bridge_mcast_own_query *query)
> {
> @@ -1615,7 +1628,7 @@ int br_multicast_add_port(struct net_bridge_port *port)
> port->multicast_eht_hosts_limit = BR_MCAST_DEFAULT_EHT_HOSTS_LIMIT;
>
> timer_setup(&port->ip4_mc_router_timer,
> - br_multicast_router_expired, 0);
> + 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)
> @@ -3319,7 +3332,7 @@ void br_multicast_init(struct net_bridge *br)
>
> spin_lock_init(&br->multicast_lock);
> timer_setup(&br->ip4_mc_router_timer,
> - br_multicast_local_router_expired, 0);
> + br_ip4_multicast_local_router_expired, 0);
> timer_setup(&br->ip4_other_query.timer,
> br_ip4_multicast_querier_expired, 0);
> timer_setup(&br->ip4_own_query.timer,
>