net/hsr: Operstate handling cleanup.

Signed-off-by: Arvid Brodin <arvid.brodin@alten.se>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 30 insertions, 22 deletions

diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c
index f224067153e4..8936b3c2bb84 100644
--- a/net/hsr/hsr_device.c
+++ b/net/hsr/hsr_device.c
@@ -46,31 +46,36 @@ static void __hsr_set_operstate(struct net_device *dev, int transition)
         }
 }
 
-void hsr_set_operstate(struct net_device *hsr_dev, struct net_device *slave1,
-                       struct net_device *slave2)
+static void hsr_set_operstate(struct net_device *hsr_dev, bool has_carrier)
 {
         if (!is_admin_up(hsr_dev)) {
                 __hsr_set_operstate(hsr_dev, IF_OPER_DOWN);
                 return;
         }
 
-        if (is_slave_up(slave1) || is_slave_up(slave2))
+        if (has_carrier)
                 __hsr_set_operstate(hsr_dev, IF_OPER_UP);
         else
                 __hsr_set_operstate(hsr_dev, IF_OPER_LOWERLAYERDOWN);
 }
 
-void hsr_set_carrier(struct net_device *hsr_dev, struct net_device *slave1,
-                     struct net_device *slave2)
+static bool hsr_check_carrier(struct hsr_priv *hsr)
 {
-        if (is_slave_up(slave1) || is_slave_up(slave2))
-                netif_carrier_on(hsr_dev);
+        bool has_carrier;
+
+        has_carrier = (is_slave_up(hsr->slave[0]) || is_slave_up(hsr->slave[1]));
+
+        if (has_carrier)
+                netif_carrier_on(hsr->dev);
         else
-                netif_carrier_off(hsr_dev);
+                netif_carrier_off(hsr->dev);
+
+        return has_carrier;
 }
 
 
-void hsr_check_announce(struct net_device *hsr_dev, int old_operstate)
+static void hsr_check_announce(struct net_device *hsr_dev,
+                               unsigned char old_operstate)
 {
         struct hsr_priv *hsr;
 
@@ -89,6 +94,20 @@ void hsr_check_announce(struct net_device *hsr_dev, int old_operstate)
                 del_timer(&hsr->announce_timer);
 }
 
+void hsr_check_carrier_and_operstate(struct hsr_priv *hsr)
+{
+        unsigned char old_operstate;
+        bool has_carrier;
+
+        /* netif_stacked_transfer_operstate() cannot be used here since
+         * it doesn't set IF_OPER_LOWERLAYERDOWN (?)
+         */
+        old_operstate = hsr->dev->operstate;
+        has_carrier = hsr_check_carrier(hsr);
+        hsr_set_operstate(hsr->dev, has_carrier);
+        hsr_check_announce(hsr->dev, old_operstate);
+}
+
 
 int hsr_get_max_mtu(struct hsr_priv *hsr)
 {
diff --git a/net/hsr/hsr_device.h b/net/hsr/hsr_device.h
index feb744f90f3d..108a5d59d2a6 100644
--- a/net/hsr/hsr_device.h
+++ b/net/hsr/hsr_device.h
@@ -18,11 +18,7 @@
 void hsr_dev_setup(struct net_device *dev);
 int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2],
                      unsigned char multicast_spec);
-void hsr_set_operstate(struct net_device *hsr_dev, struct net_device *slave1,
-                       struct net_device *slave2);
-void hsr_set_carrier(struct net_device *hsr_dev, struct net_device *slave1,
-                     struct net_device *slave2);
-void hsr_check_announce(struct net_device *hsr_dev, int old_operstate);
+void hsr_check_carrier_and_operstate(struct hsr_priv *hsr);
 bool is_hsr_master(struct net_device *dev);
 int hsr_get_max_mtu(struct hsr_priv *hsr);
 
diff --git a/net/hsr/hsr_main.c b/net/hsr/hsr_main.c
index 5f9cd7fdbd93..431b528c2447 100644
--- a/net/hsr/hsr_main.c
+++ b/net/hsr/hsr_main.c
@@ -91,7 +91,6 @@ static int hsr_netdev_notify(struct notifier_block *nb, unsigned long event,
 {
         struct net_device *slave, *other_slave;
         struct hsr_priv *hsr;
-        int old_operstate;
         int mtu_max;
         int res;
         struct net_device *dev;
@@ -115,13 +114,7 @@ static int hsr_netdev_notify(struct notifier_block *nb, unsigned long event,
         case NETDEV_UP:         /* Administrative state DOWN */
         case NETDEV_DOWN:       /* Administrative state UP */
         case NETDEV_CHANGE:     /* Link (carrier) state changes */
-                old_operstate = hsr->dev->operstate;
-                hsr_set_carrier(hsr->dev, slave, other_slave);
-                /* netif_stacked_transfer_operstate() cannot be used here since
-                 * it doesn't set IF_OPER_LOWERLAYERDOWN (?)
-                 */
-                hsr_set_operstate(hsr->dev, slave, other_slave);
-                hsr_check_announce(hsr->dev, old_operstate);
+                hsr_check_carrier_and_operstate(hsr);
                 break;
         case NETDEV_CHANGEADDR: