net: ipv6: Use BUG_ON

The semantic patch that makes the transformation is as follows:

// <smpl>
@@ expression e; @@
-if (e) BUG();
+BUG_ON(e);
// </smpl>

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv6/raw.c

@@ -588,8 +588,7 @@ static int rawv6_push_pending_frames(struct sock *sk, struct flowi6 *fl6,
 	}
 
 	offset += skb_transport_offset(skb);
-	if (skb_copy_bits(skb, offset, &csum, 2))
-		BUG();
+	BUG_ON(skb_copy_bits(skb, offset, &csum, 2));
 
 	/* in case cksum was not initialized */
 	if (unlikely(csum))
@@ -601,8 +600,7 @@ static int rawv6_push_pending_frames(struct sock *sk, struct flowi6 *fl6,
 	if (csum == 0 && fl6->flowi6_proto == IPPROTO_UDP)
 		csum = CSUM_MANGLED_0;
 
-	if (skb_store_bits(skb, offset, &csum, 2))
-		BUG();
+	BUG_ON(skb_store_bits(skb, offset, &csum, 2));
 
 send:
 	err = ip6_push_pending_frames(sk);