ip_tunnel: delete unneeded call to netdev_priv
authorJulia Lawall <Julia.Lawall@lip6.fr>
Thu, 15 May 2014 03:43:20 +0000 (05:43 +0200)
committerDavid S. Miller <davem@davemloft.net>
Thu, 15 May 2014 20:57:47 +0000 (16:57 -0400)
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/)

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

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/ip_tunnel.c

index b3f859731c60eccfdd77517989cff5ba84f6581a..059176dfab7f2f6523d39351176a0e7853ea38c9 100644 (file)
@@ -395,11 +395,10 @@ static struct ip_tunnel *ip_tunnel_create(struct net *net,
                                          struct ip_tunnel_net *itn,
                                          struct ip_tunnel_parm *parms)
 {
-       struct ip_tunnel *nt, *fbt;
+       struct ip_tunnel *nt;
        struct net_device *dev;
 
        BUG_ON(!itn->fb_tunnel_dev);
-       fbt = netdev_priv(itn->fb_tunnel_dev);
        dev = __ip_tunnel_create(net, itn->fb_tunnel_dev->rtnl_link_ops, parms);
        if (IS_ERR(dev))
                return ERR_CAST(dev);