add wifi6 8852be driver

hc

2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da

 kernel/net/rxrpc/conn_object.c
..
..
@@ -1,12 +1,8 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
1
2
 /* RxRPC virtual connection handler, common bits.
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3
  *
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4
  * Copyright (C) 2007, 2016 Red Hat, Inc. All Rights Reserved.
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5
  * Written by David Howells (dhowells@redhat.com)
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU General Public License
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- * as published by the Free Software Foundation; either version
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- * 2 of the License, or (at your option) any later version.
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6
  */
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7
 
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8
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
..
..
@@ -45,8 +41,6 @@
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 	conn = kzalloc(sizeof(struct rxrpc_connection), gfp);
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 	if (conn) {
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 		INIT_LIST_HEAD(&conn->cache_link);
48
-		spin_lock_init(&conn->channel_lock);
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-		INIT_LIST_HEAD(&conn->waiting_calls);
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44
 		timer_setup(&conn->timer, &rxrpc_connection_timer, 0);
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45
 		INIT_WORK(&conn->processor, &rxrpc_process_connection);
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 		INIT_LIST_HEAD(&conn->proc_link);
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..
@@ -86,11 +80,12 @@
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80
 
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 	_enter(",%x", sp->hdr.cid & RXRPC_CIDMASK);
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82
 
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-	if (rxrpc_extract_addr_from_skb(local, &srx, skb) < 0)
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+	if (rxrpc_extract_addr_from_skb(&srx, skb) < 0)
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 		goto not_found;
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85
 
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-	/* We may have to handle mixing IPv4 and IPv6 */
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-	if (srx.transport.family != local->srx.transport.family) {
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+	if (srx.transport.family != local->srx.transport.family &&
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+	    (srx.transport.family == AF_INET &&
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+	     local->srx.transport.family != AF_INET6)) {
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 		pr_warn_ratelimited("AF_RXRPC: Protocol mismatch %u not %u\n",
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 				    srx.transport.family,
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 				    local->srx.transport.family);
..
..
@@ -110,7 +105,7 @@
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 			goto not_found;
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 		*_peer = peer;
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 		conn = rxrpc_find_service_conn_rcu(peer, skb);
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-		if (!conn || atomic_read(&conn->usage) == 0)
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+		if (!conn || refcount_read(&conn->ref) == 0)
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 			goto not_found;
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 		_leave(" = %p", conn);
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111
 		return conn;
..
..
@@ -120,7 +115,7 @@
120
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 		 */
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 		conn = idr_find(&rxrpc_client_conn_ids,
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 				sp->hdr.cid >> RXRPC_CIDSHIFT);
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-		if (!conn || atomic_read(&conn->usage) == 0) {
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+		if (!conn || refcount_read(&conn->ref) == 0) {
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 			_debug("no conn");
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 			goto not_found;
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 		}
..
..
@@ -189,7 +184,7 @@
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 			chan->last_type = RXRPC_PACKET_TYPE_ABORT;
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 			break;
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 		default:
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-			chan->last_abort = RX_USER_ABORT;
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+			chan->last_abort = RX_CALL_DEAD;
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 			chan->last_type = RXRPC_PACKET_TYPE_ABORT;
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 			break;
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 		}
..
..
@@ -222,11 +217,11 @@
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217
 	}
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218
 
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 	if (rxrpc_is_client_call(call))
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-		return rxrpc_disconnect_client_call(call);
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+		return rxrpc_disconnect_client_call(conn->bundle, call);
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221
 
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-	spin_lock(&conn->channel_lock);
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+	spin_lock(&conn->bundle->channel_lock);
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223
 	__rxrpc_disconnect_call(conn, call);
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-	spin_unlock(&conn->channel_lock);
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+	spin_unlock(&conn->bundle->channel_lock);
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225
 
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 	set_bit(RXRPC_CALL_DISCONNECTED, &call->flags);
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 	conn->idle_timestamp = jiffies;
..
..
@@ -269,11 +264,12 @@
269
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 bool rxrpc_queue_conn(struct rxrpc_connection *conn)
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 {
271
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 	const void *here = __builtin_return_address(0);
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-	int n = atomic_fetch_add_unless(&conn->usage, 1, 0);
273
-	if (n == 0)
267
+	int r;
268
+
269
+	if (!__refcount_inc_not_zero(&conn->ref, &r))
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270
 		return false;
275
271
 	if (rxrpc_queue_work(&conn->processor))
276
-		trace_rxrpc_conn(conn->debug_id, rxrpc_conn_queued, n + 1, here);
272
+		trace_rxrpc_conn(conn->debug_id, rxrpc_conn_queued, r + 1, here);
277
273
 	else
278
274
 		rxrpc_put_connection(conn);
279
275
 	return true;
..
..
@@ -286,7 +282,7 @@
286
282
 {
287
283
 	const void *here = __builtin_return_address(0);
288
284
 	if (conn) {
289
-		int n = atomic_read(&conn->usage);
285
+		int n = refcount_read(&conn->ref);
290
286
 
291
287
 		trace_rxrpc_conn(conn->debug_id, rxrpc_conn_seen, n, here);
292
288
 	}
..
..
@@ -295,12 +291,14 @@
295
291
 /*
296
292
  * Get a ref on a connection.
297
293
  */
298
-void rxrpc_get_connection(struct rxrpc_connection *conn)
294
+struct rxrpc_connection *rxrpc_get_connection(struct rxrpc_connection *conn)
299
295
 {
300
296
 	const void *here = __builtin_return_address(0);
301
-	int n = atomic_inc_return(&conn->usage);
297
+	int r;
302
298
 
303
-	trace_rxrpc_conn(conn->debug_id, rxrpc_conn_got, n, here);
299
+	__refcount_inc(&conn->ref, &r);
300
+	trace_rxrpc_conn(conn->debug_id, rxrpc_conn_got, r, here);
301
+	return conn;
304
302
 }
305
303
 
306
304
 /*
..
..
@@ -310,11 +308,11 @@
310
308
 rxrpc_get_connection_maybe(struct rxrpc_connection *conn)
311
309
 {
312
310
 	const void *here = __builtin_return_address(0);
311
+	int r;
313
312
 
314
313
 	if (conn) {
315
-		int n = atomic_fetch_add_unless(&conn->usage, 1, 0);
316
-		if (n > 0)
317
-			trace_rxrpc_conn(conn->debug_id, rxrpc_conn_got, n + 1, here);
314
+		if (__refcount_inc_not_zero(&conn->ref, &r))
315
+			trace_rxrpc_conn(conn->debug_id, rxrpc_conn_got, r + 1, here);
318
316
 		else
319
317
 			conn = NULL;
320
318
 	}
..
..
@@ -338,12 +336,11 @@
338
336
 {
339
337
 	const void *here = __builtin_return_address(0);
340
338
 	unsigned int debug_id = conn->debug_id;
341
-	int n;
339
+	int r;
342
340
 
343
-	n = atomic_dec_return(&conn->usage);
344
-	trace_rxrpc_conn(debug_id, rxrpc_conn_put_service, n, here);
345
-	ASSERTCMP(n, >=, 0);
346
-	if (n == 1)
341
+	__refcount_dec(&conn->ref, &r);
342
+	trace_rxrpc_conn(debug_id, rxrpc_conn_put_service, r - 1, here);
343
+	if (r - 1 == 1)
347
344
 		rxrpc_set_service_reap_timer(conn->params.local->rxnet,
348
345
 					     jiffies + rxrpc_connection_expiry);
349
346
 }
..
..
@@ -356,9 +353,9 @@
356
353
 	struct rxrpc_connection *conn =
357
354
 		container_of(rcu, struct rxrpc_connection, rcu);
358
355
 
359
-	_enter("{%d,u=%d}", conn->debug_id, atomic_read(&conn->usage));
356
+	_enter("{%d,u=%d}", conn->debug_id, refcount_read(&conn->ref));
360
357
 
361
-	ASSERTCMP(atomic_read(&conn->usage), ==, 0);
358
+	ASSERTCMP(refcount_read(&conn->ref), ==, 0);
362
359
 
363
360
 	_net("DESTROY CONN %d", conn->debug_id);
364
361
 
..
..
@@ -368,6 +365,7 @@
368
365
 	conn->security->clear(conn);
369
366
 	key_put(conn->params.key);
370
367
 	key_put(conn->server_key);
368
+	rxrpc_put_bundle(conn->bundle);
371
369
 	rxrpc_put_peer(conn->params.peer);
372
370
 
373
371
 	if (atomic_dec_and_test(&conn->params.local->rxnet->nr_conns))
..
..
@@ -397,8 +395,8 @@
397
395
 
398
396
 	write_lock(&rxnet->conn_lock);
399
397
 	list_for_each_entry_safe(conn, _p, &rxnet->service_conns, link) {
400
-		ASSERTCMP(atomic_read(&conn->usage), >, 0);
401
-		if (likely(atomic_read(&conn->usage) > 1))
398
+		ASSERTCMP(refcount_read(&conn->ref), >, 0);
399
+		if (likely(refcount_read(&conn->ref) > 1))
402
400
 			continue;
403
401
 		if (conn->state == RXRPC_CONN_SERVICE_PREALLOC)
404
402
 			continue;
..
..
@@ -410,7 +408,7 @@
410
408
 				expire_at = idle_timestamp + rxrpc_closed_conn_expiry * HZ;
411
409
 
412
410
 			_debug("reap CONN %d { u=%d,t=%ld }",
413
-			       conn->debug_id, atomic_read(&conn->usage),
411
+			       conn->debug_id, refcount_read(&conn->ref),
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412
 			       (long)expire_at - (long)now);
415
413
 
416
414
 			if (time_before(now, expire_at)) {
..
..
@@ -423,7 +421,7 @@
423
421
 		/* The usage count sits at 1 whilst the object is unused on the
424
422
 		 * list; we reduce that to 0 to make the object unavailable.
425
423
 		 */
426
-		if (atomic_cmpxchg(&conn->usage, 1, 0) != 1)
424
+		if (!refcount_dec_if_one(&conn->ref))
427
425
 			continue;
428
426
 		trace_rxrpc_conn(conn->debug_id, rxrpc_conn_reap_service, 0, NULL);
429
427
 
..
..
@@ -447,7 +445,7 @@
447
445
 				  link);
448
446
 		list_del_init(&conn->link);
449
447
 
450
-		ASSERTCMP(atomic_read(&conn->usage), ==, 0);
448
+		ASSERTCMP(refcount_read(&conn->ref), ==, 0);
451
449
 		rxrpc_kill_connection(conn);
452
450
 	}
453
451
 
..
..
@@ -475,7 +473,7 @@
475
473
 	write_lock(&rxnet->conn_lock);
476
474
 	list_for_each_entry_safe(conn, _p, &rxnet->service_conns, link) {
477
475
 		pr_err("AF_RXRPC: Leaked conn %p {%d}\n",
478
-		       conn, atomic_read(&conn->usage));
476
+		       conn, refcount_read(&conn->ref));
479
477
 		leak = true;
480
478
 	}
481
479
 	write_unlock(&rxnet->conn_lock);