May 15 2014

vti6: delete unneeded call to netdev_priv 

Author: Julia Lawall <Julia.Lawall@lip6.fr>

Netdev_priv is an accessor function, and has no purpose if its result is
not used.

A simplified version of the semantic match that fixes this problem is as
follows: (http://coccinelle.lip6.fr/)

// 
@@ local idexpression x; @@
-x = netdev_priv(...);
... when != x
// 

Signed-off-by: Julia Lawall 
Signed-off-by: David S. Miller 

---
 net/ipv6/ip6_vti.c | 3 ---
 1 file changed, 3 deletions(-)
 
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index b7c0f82..2953c0c 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -792,15 +792,12 @@ static const struct net_device_ops vti6_netdev_ops = {
  **/
 static void vti6_dev_setup(struct net_device *dev)
 {
-	struct ip6_tnl *t;
-
 	dev->netdev_ops = &vti6_netdev_ops;
 	dev->destructor = vti6_dev_free;
 
 	dev->type = ARPHRD_TUNNEL6;
 	dev->hard_header_len = LL_MAX_HEADER + sizeof(struct ipv6hdr);
 	dev->mtu = ETH_DATA_LEN;
-	t = netdev_priv(dev);
 	dev->flags |= IFF_NOARP;
 	dev->addr_len = sizeof(struct in6_addr);
 	dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;

qlambert