ipv4: Remove unused but set variable

Remove the unused but set variable dev in ip_do_fragment to fix the
following GCC warning when building with 'W=1':

  net/ipv4/ip_output.c: In function ‘ip_do_fragment’:
  net/ipv4/ip_output.c:541:21: warning: variable ‘dev’ set but not used [-Wunused-but-set-variable]

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 05d105832bdbb88f5f9d611d9f8bd35b1ae7f5d6..03e7f7310423f7731ae0db7a40e7aae1a7598bb1 100644 (file)
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -538,7 +538,6 @@ int ip_do_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
 {
        struct iphdr *iph;
        int ptr;
-       struct net_device *dev;
        struct sk_buff *skb2;
        unsigned int mtu, hlen, left, len, ll_rs;
        int offset;
@@ -546,8 +545,6 @@ int ip_do_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
        struct rtable *rt = skb_rtable(skb);
        int err = 0;
 
-       dev = rt->dst.dev;
-
        /* for offloaded checksums cleanup checksum before fragmentation */
        if (skb->ip_summed == CHECKSUM_PARTIAL &&
            (err = skb_checksum_help(skb)))