NET/ROM locking

Index: bk-afu/net/netrom/nr_in.c
===================================================================
@@ -74,7 +74,6 @@
 static int nr_state1_machine(struct sock *sk, struct sk_buff *skb,
 	int frametype)
 {
-	bh_lock_sock(sk);
 	switch (frametype) {
 	case NR_CONNACK: {
 		nr_cb *nr = nr_sk(sk);

@@ -103,8 +102,6 @@
 	default:
 		break;
 	}
-	bh_unlock_sock(sk);
-
 	return 0;
 }
 

@@ -116,7 +113,6 @@
 static int nr_state2_machine(struct sock *sk, struct sk_buff *skb,
 	int frametype)
 {
-	bh_lock_sock(sk);
 	switch (frametype) {
 	case NR_CONNACK | NR_CHOKE_FLAG:
 		nr_disconnect(sk, ECONNRESET);

@@ -132,8 +128,6 @@
 	default:
 		break;
 	}
-	bh_unlock_sock(sk);
-
 	return 0;
 }
 

@@ -154,7 +148,6 @@
 	nr = skb->data[18];
 	ns = skb->data[17];
 
-	bh_lock_sock(sk);
 	switch (frametype) {
 	case NR_CONNREQ:
 		nr_write_internal(sk, NR_CONNACK);

@@ -265,12 +258,10 @@
 	default:
 		break;
 	}
-	bh_unlock_sock(sk);
-
 	return queued;
 }
 
-/* Higher level upcall for a LAPB frame */
+/* Higher level upcall for a LAPB frame - called with sk locked */
 int nr_process_rx_frame(struct sock *sk, struct sk_buff *skb)
 {
 	nr_cb *nr = nr_sk(sk);