net/rxrpc: Use BUG_ON

if (...) BUG(); should be replaced with BUG_ON(...) when the test has no
side-effects to allow a definition of BUG_ON that drops the code completely.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@ disable unlikely @ expression E,f; @@

(
  if (<... f(...) ...>) { BUG(); }
|
- if (unlikely(E)) { BUG(); }
+ BUG_ON(E);
)

@@ expression E,f; @@

(
  if (<... f(...) ...>) { BUG(); }
|
- if (E) { BUG(); }
+ BUG_ON(E);
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/rxrpc/ar-accept.c

@@ -156,8 +156,7 @@ static int rxrpc_accept_incoming_call(struct rxrpc_local *local,
 						  false);
 			spin_unlock(&call->lock);
 			notification = NULL;
-			if (ret < 0)
-				BUG();
+			BUG_ON(ret < 0);
 		}
 		spin_unlock(&call->conn->state_lock);
 

net/rxrpc/ar-ack.c

@@ -814,8 +814,7 @@ static int rxrpc_post_message(struct rxrpc_call *call, u32 mark, u32 error,
 		spin_lock_bh(&call->lock);
 		ret = rxrpc_queue_rcv_skb(call, skb, true, fatal);
 		spin_unlock_bh(&call->lock);
-		if (ret < 0)
-			BUG();
+		BUG_ON(ret < 0);
 	}
 
 	return 0;