[NET]: Use BUILD_BUG_ON() for checking size of skb->cb.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index f2e8927..fdd89e3 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1254,10 +1254,7 @@
 	struct list_head *r;
 	int rc = -EINVAL;
 
-	if (sizeof(struct inet_skb_parm) > sizeof(dummy_skb->cb)) {
-		printk(KERN_CRIT "%s: panic\n", __FUNCTION__);
-		goto out;
-	}
+	BUILD_BUG_ON(sizeof(struct inet_skb_parm) > sizeof(dummy_skb->cb));
 
 	rc = proto_register(&tcp_prot, 1);
 	if (rc)