From: Stephen Hemminger <shemminger@osdl.org>
Date: Tue, 21 Mar 2006 06:56:25 +0000 (-0800)
Subject: [BRIDGE]: remove unneeded bh disables
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e3efe08e9a2c24232711dc573bf2decd2d93e335;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[BRIDGE]: remove unneeded bh disables

The STP timers run off softirq (kernel timers), so there is no need to
disable bottom half in the spin locks.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/bridge/br_stp_timer.c b/net/bridge/br_stp_timer.c
index 9bef55f56425..75a5f6fbfa53 100644
--- a/net/bridge/br_stp_timer.c
+++ b/net/bridge/br_stp_timer.c
@@ -39,13 +39,13 @@ static void br_hello_timer_expired(unsigned long arg)
 	struct net_bridge *br = (struct net_bridge *)arg;
 	
 	pr_debug("%s: hello timer expired\n", br->dev->name);
-	spin_lock_bh(&br->lock);
+	spin_lock(&br->lock);
 	if (br->dev->flags & IFF_UP) {
 		br_config_bpdu_generation(br);
 
 		mod_timer(&br->hello_timer, jiffies + br->hello_time);
 	}
-	spin_unlock_bh(&br->lock);
+	spin_unlock(&br->lock);
 }
 
 static void br_message_age_timer_expired(unsigned long arg)
@@ -71,7 +71,7 @@ static void br_message_age_timer_expired(unsigned long arg)
 	 * running when we are the root bridge. So..  this was_root
 	 * check is redundant. I'm leaving it in for now, though.
 	 */
-	spin_lock_bh(&br->lock);
+	spin_lock(&br->lock);
 	if (p->state == BR_STATE_DISABLED)
 		goto unlock;
 	was_root = br_is_root_bridge(br);
@@ -82,7 +82,7 @@ static void br_message_age_timer_expired(unsigned long arg)
 	if (br_is_root_bridge(br) && !was_root)
 		br_become_root_bridge(br);
  unlock:
-	spin_unlock_bh(&br->lock);
+	spin_unlock(&br->lock);
 }
 
 static void br_forward_delay_timer_expired(unsigned long arg)
@@ -92,7 +92,7 @@ static void br_forward_delay_timer_expired(unsigned long arg)
 
 	pr_debug("%s: %d(%s) forward delay timer\n",
 		 br->dev->name, p->port_no, p->dev->name);
-	spin_lock_bh(&br->lock);
+	spin_lock(&br->lock);
 	if (p->state == BR_STATE_LISTENING) {
 		p->state = BR_STATE_LEARNING;
 		mod_timer(&p->forward_delay_timer,
@@ -103,7 +103,7 @@ static void br_forward_delay_timer_expired(unsigned long arg)
 			br_topology_change_detection(br);
 	}
 	br_log_state(p);
-	spin_unlock_bh(&br->lock);
+	spin_unlock(&br->lock);
 }
 
 static void br_tcn_timer_expired(unsigned long arg)
@@ -111,13 +111,13 @@ static void br_tcn_timer_expired(unsigned long arg)
 	struct net_bridge *br = (struct net_bridge *) arg;
 
 	pr_debug("%s: tcn timer expired\n", br->dev->name);
-	spin_lock_bh(&br->lock);
+	spin_lock(&br->lock);
 	if (br->dev->flags & IFF_UP) {
 		br_transmit_tcn(br);
 	
 		mod_timer(&br->tcn_timer,jiffies + br->bridge_hello_time);
 	}
-	spin_unlock_bh(&br->lock);
+	spin_unlock(&br->lock);
 }
 
 static void br_topology_change_timer_expired(unsigned long arg)
@@ -125,10 +125,10 @@ static void br_topology_change_timer_expired(unsigned long arg)
 	struct net_bridge *br = (struct net_bridge *) arg;
 
 	pr_debug("%s: topo change timer expired\n", br->dev->name);
-	spin_lock_bh(&br->lock);
+	spin_lock(&br->lock);
 	br->topology_change_detected = 0;
 	br->topology_change = 0;
-	spin_unlock_bh(&br->lock);
+	spin_unlock(&br->lock);
 }
 
 static void br_hold_timer_expired(unsigned long arg)
@@ -138,10 +138,10 @@ static void br_hold_timer_expired(unsigned long arg)
 	pr_debug("%s: %d(%s) hold timer expired\n", 
 		 p->br->dev->name,  p->port_no, p->dev->name);
 
-	spin_lock_bh(&p->br->lock);
+	spin_lock(&p->br->lock);
 	if (p->config_pending)
 		br_transmit_config(p);
-	spin_unlock_bh(&p->br->lock);
+	spin_unlock(&p->br->lock);
 }
 
 static inline void br_timer_init(struct timer_list *timer,