From 775dd692bd34f9201ed2aa775a0edcba4f973f3e Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Tue, 30 Sep 2014 16:13:19 -0700 Subject: [PATCH] net: bridge: add a br_set_state helper function In preparation for being able to propagate port states to e.g: notifiers or other kernel parts, do not manipulate the port state directly, but instead use a helper function which will allow us to do a bit more than just setting the state. Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- net/bridge/br_if.c | 2 +- net/bridge/br_netlink.c | 2 +- net/bridge/br_private.h | 1 + net/bridge/br_stp.c | 15 ++++++++++----- net/bridge/br_stp_if.c | 4 ++-- net/bridge/br_stp_timer.c | 4 ++-- 6 files changed, 17 insertions(+), 11 deletions(-) diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c index a9f54a9b6690..7b7289ca2992 100644 --- a/net/bridge/br_if.c +++ b/net/bridge/br_if.c @@ -332,7 +332,7 @@ static struct net_bridge_port *new_nbp(struct net_bridge *br, p->port_no = index; p->flags = BR_LEARNING | BR_FLOOD; br_init_port(p); - p->state = BR_STATE_DISABLED; + br_set_state(p, BR_STATE_DISABLED); br_stp_port_timer_init(p); br_multicast_add_port(p); diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c index 0fa66b83685f..2ff9706647f2 100644 --- a/net/bridge/br_netlink.c +++ b/net/bridge/br_netlink.c @@ -301,7 +301,7 @@ static int br_set_port_state(struct net_bridge_port *p, u8 state) (!netif_oper_up(p->dev) && state != BR_STATE_DISABLED)) return -ENETDOWN; - p->state = state; + br_set_state(p, state); br_log_state(p); br_port_state_selection(p->br); return 0; diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index f53592fc3ef9..fe7463c2af9a 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -766,6 +766,7 @@ static inline void br_nf_core_fini(void) {} /* br_stp.c */ void br_log_state(const struct net_bridge_port *p); +void br_set_state(struct net_bridge_port *p, unsigned int state); struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); void br_init_port(struct net_bridge_port *p); void br_become_designated_port(struct net_bridge_port *p); diff --git a/net/bridge/br_stp.c b/net/bridge/br_stp.c index 3c86f0538cbb..2b047bcf42a4 100644 --- a/net/bridge/br_stp.c +++ b/net/bridge/br_stp.c @@ -36,6 +36,11 @@ void br_log_state(const struct net_bridge_port *p) br_port_state_names[p->state]); } +void br_set_state(struct net_bridge_port *p, unsigned int state) +{ + p->state = state; +} + /* called under bridge lock */ struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no) { @@ -107,7 +112,7 @@ static void br_root_port_block(const struct net_bridge *br, br_notice(br, "port %u(%s) tried to become root port (blocked)", (unsigned int) p->port_no, p->dev->name); - p->state = BR_STATE_LISTENING; + br_set_state(p, BR_STATE_LISTENING); br_log_state(p); br_ifinfo_notify(RTM_NEWLINK, p); @@ -387,7 +392,7 @@ static void br_make_blocking(struct net_bridge_port *p) p->state == BR_STATE_LEARNING) br_topology_change_detection(p->br); - p->state = BR_STATE_BLOCKING; + br_set_state(p, BR_STATE_BLOCKING); br_log_state(p); br_ifinfo_notify(RTM_NEWLINK, p); @@ -404,13 +409,13 @@ static void br_make_forwarding(struct net_bridge_port *p) return; if (br->stp_enabled == BR_NO_STP || br->forward_delay == 0) { - p->state = BR_STATE_FORWARDING; + br_set_state(p, BR_STATE_FORWARDING); br_topology_change_detection(br); del_timer(&p->forward_delay_timer); } else if (br->stp_enabled == BR_KERNEL_STP) - p->state = BR_STATE_LISTENING; + br_set_state(p, BR_STATE_LISTENING); else - p->state = BR_STATE_LEARNING; + br_set_state(p, BR_STATE_LEARNING); br_multicast_enable_port(p); br_log_state(p); diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c index 189ba1e7d851..41146872c1b4 100644 --- a/net/bridge/br_stp_if.c +++ b/net/bridge/br_stp_if.c @@ -37,7 +37,7 @@ void br_init_port(struct net_bridge_port *p) { p->port_id = br_make_port_id(p->priority, p->port_no); br_become_designated_port(p); - p->state = BR_STATE_BLOCKING; + br_set_state(p, BR_STATE_BLOCKING); p->topology_change_ack = 0; p->config_pending = 0; } @@ -100,7 +100,7 @@ void br_stp_disable_port(struct net_bridge_port *p) wasroot = br_is_root_bridge(br); br_become_designated_port(p); - p->state = BR_STATE_DISABLED; + br_set_state(p, BR_STATE_DISABLED); p->topology_change_ack = 0; p->config_pending = 0; diff --git a/net/bridge/br_stp_timer.c b/net/bridge/br_stp_timer.c index 558c46d19e05..4fcaa67750fd 100644 --- a/net/bridge/br_stp_timer.c +++ b/net/bridge/br_stp_timer.c @@ -87,11 +87,11 @@ static void br_forward_delay_timer_expired(unsigned long arg) (unsigned int) p->port_no, p->dev->name); spin_lock(&br->lock); if (p->state == BR_STATE_LISTENING) { - p->state = BR_STATE_LEARNING; + br_set_state(p, BR_STATE_LEARNING); mod_timer(&p->forward_delay_timer, jiffies + br->forward_delay); } else if (p->state == BR_STATE_LEARNING) { - p->state = BR_STATE_FORWARDING; + br_set_state(p, BR_STATE_FORWARDING); if (br_is_designated_for_some_port(br)) br_topology_change_detection(br); netif_carrier_on(br->dev); -- 2.20.1