ipv6: Use FIELD_SIZEOF() in inet6_init().

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
git-mirror · Jan 10, 2013 · ba96bcb · ba96bcb
1 parent 95c7e0e
commit ba96bcb
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
@@ -811,11 +811,10 @@ static struct pernet_operations inet6_net_ops = {
 
 static int __init inet6_init(void)
 {
-	struct sk_buff *dummy_skb;
 	struct list_head *r;
 	int err = 0;
 
-	BUILD_BUG_ON(sizeof(struct inet6_skb_parm) > sizeof(dummy_skb->cb));
+	BUILD_BUG_ON(sizeof(struct inet6_skb_parm) > FIELD_SIZEOF(struct sk_buff, cb));
 
 	/* Register the socket-side information for inet6_create.  */
 	for (r = &inetsw6[0]; r < &inetsw6[SOCK_MAX]; ++r)