From: Jiri Pirko <jiri@resnulli.us>
Date: Fri, 18 Oct 2013 15:43:37 +0000 (+0200)
Subject: bonding: move active_slave getting into separate function
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=752d48b52ec929c6fd6ccd7ea9728571830fdd49;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

bonding: move active_slave getting into separate function

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c
index 09af5d10d43a..9a5223c7b4d1 100644
--- a/drivers/net/bonding/bond_options.c
+++ b/drivers/net/bonding/bond_options.c
@@ -57,6 +57,24 @@ int bond_option_mode_set(struct bonding *bond, int mode)
 	return 0;
 }
 
+static struct net_device *__bond_option_active_slave_get(struct bonding *bond,
+							 struct slave *slave)
+{
+	return USES_PRIMARY(bond->params.mode) && slave ? slave->dev : NULL;
+}
+
+struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond)
+{
+	struct slave *slave = rcu_dereference(bond->curr_active_slave);
+
+	return __bond_option_active_slave_get(bond, slave);
+}
+
+struct net_device *bond_option_active_slave_get(struct bonding *bond)
+{
+	return __bond_option_active_slave_get(bond, bond->curr_active_slave);
+}
+
 int bond_option_active_slave_set(struct bonding *bond,
 				 struct net_device *slave_dev)
 {
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index abd260047103..47749c970a01 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -1219,13 +1219,13 @@ static ssize_t bonding_show_active_slave(struct device *d,
 					 char *buf)
 {
 	struct bonding *bond = to_bond(d);
-	struct slave *curr;
+	struct net_device *slave_dev;
 	int count = 0;
 
 	rcu_read_lock();
-	curr = rcu_dereference(bond->curr_active_slave);
-	if (USES_PRIMARY(bond->params.mode) && curr)
-		count = sprintf(buf, "%s\n", curr->dev->name);
+	slave_dev = bond_option_active_slave_get_rcu(bond);
+	if (slave_dev)
+		count = sprintf(buf, "%s\n", slave_dev->name);
 	rcu_read_unlock();
 
 	return count;
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 686759dce4c6..046a60535e04 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -428,6 +428,8 @@ int bond_netlink_init(void);
 void bond_netlink_fini(void);
 int bond_option_mode_set(struct bonding *bond, int mode);
 int bond_option_active_slave_set(struct bonding *bond, struct net_device *slave_dev);
+struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond);
+struct net_device *bond_option_active_slave_get(struct bonding *bond);
 
 struct bond_net {
 	struct net *		net;	/* Associated network namespace */