rxrpc: Remove the [_k]net() debugging macros

Remove the _net() and knet() debugging macros in favour of tracepoints.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org

net/rxrpc/ar-internal.h

@@ -1190,20 +1190,17 @@ extern unsigned int rxrpc_debug;
 #define kenter(FMT,...)	dbgprintk("==> %s("FMT")",__func__ ,##__VA_ARGS__)
 #define kleave(FMT,...)	dbgprintk("<== %s()"FMT"",__func__ ,##__VA_ARGS__)
 #define kdebug(FMT,...)	dbgprintk("    "FMT ,##__VA_ARGS__)
-#define knet(FMT,...)	dbgprintk("@@@ "FMT ,##__VA_ARGS__)
 
 
 #if defined(__KDEBUG)
 #define _enter(FMT,...)	kenter(FMT,##__VA_ARGS__)
 #define _leave(FMT,...)	kleave(FMT,##__VA_ARGS__)
 #define _debug(FMT,...)	kdebug(FMT,##__VA_ARGS__)
-#define _net(FMT,...)	knet(FMT,##__VA_ARGS__)
 
 #elif defined(CONFIG_AF_RXRPC_DEBUG)
 #define RXRPC_DEBUG_KENTER	0x01
 #define RXRPC_DEBUG_KLEAVE	0x02
 #define RXRPC_DEBUG_KDEBUG	0x04
-#define RXRPC_DEBUG_KNET	0x10
 
 #define _enter(FMT,...)					\
 do {							\
@@ -1223,17 +1220,10 @@ do {							\
 		kdebug(FMT,##__VA_ARGS__);		\
 } while (0)
 
-#define _net(FMT,...)					\
-do {							\
-	if (unlikely(rxrpc_debug & RXRPC_DEBUG_KNET))	\
-		knet(FMT,##__VA_ARGS__);		\
-} while (0)
-
 #else
 #define _enter(FMT,...)	no_printk("==> %s("FMT")",__func__ ,##__VA_ARGS__)
 #define _leave(FMT,...)	no_printk("<== %s()"FMT"",__func__ ,##__VA_ARGS__)
 #define _debug(FMT,...)	no_printk("    "FMT ,##__VA_ARGS__)
-#define _net(FMT,...)	no_printk("@@@ "FMT ,##__VA_ARGS__)
 #endif
 
 /*

net/rxrpc/call_object.c

@@ -349,8 +349,6 @@ struct rxrpc_call *rxrpc_new_client_call(struct rxrpc_sock *rx,
 
 	rxrpc_start_call_timer(call);
 
-	_net("CALL new %d on CONN %d", call->debug_id, call->conn->debug_id);
-
 	_leave(" = %p [new]", call);
 	return call;
 
@@ -423,8 +421,6 @@ void rxrpc_incoming_call(struct rxrpc_sock *rx,
 	hlist_add_head_rcu(&call->error_link, &conn->params.peer->error_targets);
 	spin_unlock(&conn->params.peer->lock);
 
-	_net("CALL incoming %d on CONN %d", call->debug_id, call->conn->debug_id);
-
 	rxrpc_start_call_timer(call);
 	_leave("");
 }
@@ -669,8 +665,6 @@ void rxrpc_cleanup_call(struct rxrpc_call *call)
 {
 	struct rxrpc_txbuf *txb;
 
-	_net("DESTROY CALL %d", call->debug_id);
-
 	memset(&call->sock_node, 0xcd, sizeof(call->sock_node));
 
 	ASSERTCMP(call->state, ==, RXRPC_CALL_COMPLETE);

net/rxrpc/conn_client.c

@@ -541,8 +541,6 @@ static void rxrpc_activate_one_channel(struct rxrpc_connection *conn,
 	call->service_id = conn->service_id;
 
 	trace_rxrpc_connect_call(call);
-	_net("CONNECT call %08x:%08x as call %d on conn %d",
-	     call->cid, call->call_id, call->debug_id, conn->debug_id);
 
 	write_lock_bh(&call->state_lock);
 	call->state = RXRPC_CALL_CLIENT_SEND_REQUEST;

net/rxrpc/conn_object.c

@@ -356,8 +356,6 @@ static void rxrpc_destroy_connection(struct rcu_head *rcu)
 
 	ASSERTCMP(refcount_read(&conn->ref), ==, 0);
 
-	_net("DESTROY CONN %d", conn->debug_id);
-
 	del_timer_sync(&conn->timer);
 	rxrpc_purge_queue(&conn->rx_queue);
 

net/rxrpc/conn_service.c

@@ -184,8 +184,6 @@ void rxrpc_new_incoming_connection(struct rxrpc_sock *rx,
 
 	/* Make the connection a target for incoming packets. */
 	rxrpc_publish_service_conn(conn->params.peer, conn);
-
-	_net("CONNECTION new %d {%x}", conn->debug_id, conn->proto.cid);
 }
 
 /*

net/rxrpc/input.c

@@ -725,7 +725,6 @@ static void rxrpc_input_ackinfo(struct rxrpc_call *call, struct sk_buff *skb,
 		peer->maxdata = mtu;
 		peer->mtu = mtu + peer->hdrsize;
 		spin_unlock_bh(&peer->lock);
-		_net("Net MTU %u (maxdata %u)", peer->mtu, peer->maxdata);
 	}
 
 	if (wake)

net/rxrpc/local_object.c

@@ -198,7 +198,6 @@ struct rxrpc_local *rxrpc_lookup_local(struct net *net,
 	struct rxrpc_local *local;
 	struct rxrpc_net *rxnet = rxrpc_net(net);
 	struct hlist_node *cursor;
-	const char *age;
 	long diff;
 	int ret;
 
@@ -232,7 +231,6 @@ struct rxrpc_local *rxrpc_lookup_local(struct net *net,
 		if (!rxrpc_use_local(local))
 			break;
 
-		age = "old";
 		goto found;
 	}
 
@@ -250,14 +248,9 @@ struct rxrpc_local *rxrpc_lookup_local(struct net *net,
 	} else {
 		hlist_add_head_rcu(&local->link, &rxnet->local_endpoints);
 	}
-	age = "new";
 
 found:
 	mutex_unlock(&rxnet->local_mutex);
-
-	_net("LOCAL %s %d {%pISp}",
-	     age, local->debug_id, &local->srx.transport);
-
 	_leave(" = %p", local);
 	return local;
 
@@ -467,7 +460,6 @@ static void rxrpc_local_rcu(struct rcu_head *rcu)
 
 	ASSERT(!work_pending(&local->processor));
 
-	_net("DESTROY LOCAL %d", local->debug_id);
 	kfree(local);
 	_leave("");
 }

net/rxrpc/peer_event.c

@@ -48,13 +48,11 @@ static struct rxrpc_peer *rxrpc_lookup_peer_local_rcu(struct rxrpc_local *local,
 		srx->transport.sin.sin_port = serr->port;
 		switch (serr->ee.ee_origin) {
 		case SO_EE_ORIGIN_ICMP:
-			_net("Rx ICMP");
 			memcpy(&srx->transport.sin.sin_addr,
 			       skb_network_header(skb) + serr->addr_offset,
 			       sizeof(struct in_addr));
 			break;
 		case SO_EE_ORIGIN_ICMP6:
-			_net("Rx ICMP6 on v4 sock");
 			memcpy(&srx->transport.sin.sin_addr,
 			       skb_network_header(skb) + serr->addr_offset + 12,
 			       sizeof(struct in_addr));
@@ -70,14 +68,12 @@ static struct rxrpc_peer *rxrpc_lookup_peer_local_rcu(struct rxrpc_local *local,
 	case AF_INET6:
 		switch (serr->ee.ee_origin) {
 		case SO_EE_ORIGIN_ICMP6:
-			_net("Rx ICMP6");
 			srx->transport.sin6.sin6_port = serr->port;
 			memcpy(&srx->transport.sin6.sin6_addr,
 			       skb_network_header(skb) + serr->addr_offset,
 			       sizeof(struct in6_addr));
 			break;
 		case SO_EE_ORIGIN_ICMP:
-			_net("Rx ICMP on v6 sock");
 			srx->transport_len = sizeof(srx->transport.sin);
 			srx->transport.family = AF_INET;
 			srx->transport.sin.sin_port = serr->port;
@@ -106,13 +102,9 @@ static struct rxrpc_peer *rxrpc_lookup_peer_local_rcu(struct rxrpc_local *local,
  */
 static void rxrpc_adjust_mtu(struct rxrpc_peer *peer, unsigned int mtu)
 {
-	_net("Rx ICMP Fragmentation Needed (%d)", mtu);
-
 	/* wind down the local interface MTU */
-	if (mtu > 0 && peer->if_mtu == 65535 && mtu < peer->if_mtu) {
+	if (mtu > 0 && peer->if_mtu == 65535 && mtu < peer->if_mtu)
 		peer->if_mtu = mtu;
-		_net("I/F MTU %u", mtu);
-	}
 
 	if (mtu == 0) {
 		/* they didn't give us a size, estimate one */
@@ -133,8 +125,6 @@ static void rxrpc_adjust_mtu(struct rxrpc_peer *peer, unsigned int mtu)
 		peer->mtu = mtu;
 		peer->maxdata = peer->mtu - peer->hdrsize;
 		spin_unlock_bh(&peer->lock);
-		_net("Net MTU %u (maxdata %u)",
-		     peer->mtu, peer->maxdata);
 	}
 }
 
@@ -222,41 +212,6 @@ static void rxrpc_store_error(struct rxrpc_peer *peer,
 	err = ee->ee_errno;
 
 	switch (ee->ee_origin) {
-	case SO_EE_ORIGIN_ICMP:
-		switch (ee->ee_type) {
-		case ICMP_DEST_UNREACH:
-			switch (ee->ee_code) {
-			case ICMP_NET_UNREACH:
-				_net("Rx Received ICMP Network Unreachable");
-				break;
-			case ICMP_HOST_UNREACH:
-				_net("Rx Received ICMP Host Unreachable");
-				break;
-			case ICMP_PORT_UNREACH:
-				_net("Rx Received ICMP Port Unreachable");
-				break;
-			case ICMP_NET_UNKNOWN:
-				_net("Rx Received ICMP Unknown Network");
-				break;
-			case ICMP_HOST_UNKNOWN:
-				_net("Rx Received ICMP Unknown Host");
-				break;
-			default:
-				_net("Rx Received ICMP DestUnreach code=%u",
-				     ee->ee_code);
-				break;
-			}
-			break;
-
-		case ICMP_TIME_EXCEEDED:
-			_net("Rx Received ICMP TTL Exceeded");
-			break;
-
-		default:
-			break;
-		}
-		break;
-
 	case SO_EE_ORIGIN_NONE:
 	case SO_EE_ORIGIN_LOCAL:
 		compl = RXRPC_CALL_LOCAL_ERROR;
@@ -266,6 +221,7 @@ static void rxrpc_store_error(struct rxrpc_peer *peer,
 		if (err == EACCES)
 			err = EHOSTUNREACH;
 		fallthrough;
+	case SO_EE_ORIGIN_ICMP:
 	default:
 		break;
 	}

net/rxrpc/peer_object.c

@@ -138,10 +138,8 @@ struct rxrpc_peer *rxrpc_lookup_peer_rcu(struct rxrpc_local *local,
 	unsigned long hash_key = rxrpc_peer_hash_key(local, srx);
 
 	peer = __rxrpc_lookup_peer_rcu(local, srx, hash_key);
-	if (peer) {
-		_net("PEER %d {%pISp}", peer->debug_id, &peer->srx.transport);
+	if (peer)
 		_leave(" = %p {u=%d}", peer, refcount_read(&peer->ref));
-	}
 	return peer;
 }
 
@@ -371,8 +369,6 @@ struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_sock *rx,
 			peer = candidate;
 	}
 
-	_net("PEER %d {%pISp}", peer->debug_id, &peer->srx.transport);
-
 	_leave(" = %p {u=%d}", peer, refcount_read(&peer->ref));
 	return peer;
 }