commit b4af8def5c083e5424c66051fe400444a01c4644
author Daniel Borkmann <dborkman@redhat.com> Wed Sep 04 00:19:43 2013 +0200
committer David S. Miller <davem@davemloft.net> Wed Sep 04 14:53:21 2013 -0400
tree 781f3e4fea6356d28340c5acc5aa89f8f1f001f0
parent 2b7c121f82b47ba5efac1ef47355376d1f8d6980

net: ipv6: mld: introduce mld_{gq, ifc, dad}_stop_timer functions

We already have mld_{gq,ifc,dad}_start_timer() functions, so introduce
mld_{gq,ifc,dad}_stop_timer() functions to reduce code size and make it
more readable.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv6/mcast.c

diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 04399cb7..096cd67 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1006,6 +1006,13 @@
 		in6_dev_hold(idev);
 }
 
+static void mld_gq_stop_timer(struct inet6_dev *idev)
+{
+	idev->mc_gq_running = 0;
+	if (del_timer(&idev->mc_gq_timer))
+		__in6_dev_put(idev);
+}
+
 static void mld_ifc_start_timer(struct inet6_dev *idev, unsigned long delay)
 {
 	unsigned long tv = net_random() % delay;
@@ -1014,6 +1021,13 @@
 		in6_dev_hold(idev);
 }
 
+static void mld_ifc_stop_timer(struct inet6_dev *idev)
+{
+	idev->mc_ifc_count = 0;
+	if (del_timer(&idev->mc_ifc_timer))
+		__in6_dev_put(idev);
+}
+
 static void mld_dad_start_timer(struct inet6_dev *idev, unsigned long delay)
 {
 	unsigned long tv = net_random() % delay;
@@ -1022,6 +1036,12 @@
 		in6_dev_hold(idev);
 }
 
+static void mld_dad_stop_timer(struct inet6_dev *idev)
+{
+	if (del_timer(&idev->mc_dad_timer))
+		__in6_dev_put(idev);
+}
+
 /*
  *	IGMP handling (alias multicast ICMPv6 messages)
  */
@@ -1234,15 +1254,9 @@
 	mld_set_v1_mode(idev);
 
 	/* cancel MLDv2 report timer */
-	idev->mc_gq_running = 0;
-	if (del_timer(&idev->mc_gq_timer))
-		__in6_dev_put(idev);
-
+	mld_gq_stop_timer(idev);
 	/* cancel the interface change timer */
-	idev->mc_ifc_count = 0;
-	if (del_timer(&idev->mc_ifc_timer))
-		__in6_dev_put(idev);
-
+	mld_ifc_stop_timer(idev);
 	/* clear deleted report items */
 	mld_clear_delrec(idev);
 
@@ -2434,14 +2448,9 @@
 	/* Withdraw multicast list */
 
 	read_lock_bh(&idev->lock);
-	idev->mc_ifc_count = 0;
-	if (del_timer(&idev->mc_ifc_timer))
-		__in6_dev_put(idev);
-	idev->mc_gq_running = 0;
-	if (del_timer(&idev->mc_gq_timer))
-		__in6_dev_put(idev);
-	if (del_timer(&idev->mc_dad_timer))
-		__in6_dev_put(idev);
+	mld_ifc_stop_timer(idev);
+	mld_gq_stop_timer(idev);
+	mld_dad_stop_timer(idev);
 
 	for (i = idev->mc_list; i; i=i->next)
 		igmp6_group_dropped(i);