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Date:	Mon, 24 Mar 2014 00:52:43 +0530
From:	Monam Agarwal <>
Subject: [PATCH] net/openvswitch: Use with RCU_INIT_POINTER(x, NULL) in vport-gre.c

This patch replaces rcu_assign_pointer(x, NULL) with RCU_INIT_POINTER(x, NULL)

The rcu_assign_pointer() ensures that the initialization of a structure       
is carried out before storing a pointer to that structure. 
And in the case of the NULL pointer, there is no structure to initialize. 
So, rcu_assign_pointer(p, NULL) can be safely converted to RCU_INIT_POINTER(p, NULL)

Signed-off-by: Monam Agarwal <>
 net/openvswitch/vport-gre.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/openvswitch/vport-gre.c b/net/openvswitch/vport-gre.c
index a3d6951..a0da2dd 100644
--- a/net/openvswitch/vport-gre.c
+++ b/net/openvswitch/vport-gre.c
@@ -256,7 +256,7 @@ static void gre_tnl_destroy(struct vport *vport)
 	ovs_net = net_generic(net, ovs_net_id);
-	rcu_assign_pointer(ovs_net->vport_net.gre_vport, NULL);
+	RCU_INIT_POINTER(ovs_net->vport_net.gre_vport, NULL);

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