rtl8211F_led_control

hc

2024-05-11 297b60346df8beafee954a0fd7c2d64f33f3b9bc

 kernel/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c
..
..
@@ -1,16 +1,7 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
1
2
 /* Copyright (c) 2013-2018, The Linux Foundation. All rights reserved.
2
3
  *
3
- * This program is free software; you can redistribute it and/or modify
4
- * it under the terms of the GNU General Public License version 2 and
5
- * only version 2 as published by the Free Software Foundation.
6
- *
7
- * This program is distributed in the hope that it will be useful,
8
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
9
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
10
- * GNU General Public License for more details.
11
- *
12
4
  * RMNET configuration engine
13
- *
14
5
  */
15
6
 
16
7
 #include <net/sock.h>
..
..
@@ -35,7 +26,7 @@
35
26
 }
36
27
 
37
28
 /* Needs rtnl lock */
38
-static struct rmnet_port*
29
+struct rmnet_port*
39
30
 rmnet_get_port_rtnl(const struct net_device *real_dev)
40
31
 {
41
32
 	return rtnl_dereference(real_dev->rx_handler_data);
..
..
@@ -74,7 +65,7 @@
74
65
 		return 0;
75
66
 	}
76
67
 
77
-	port = kzalloc(sizeof(*port), GFP_ATOMIC);
68
+	port = kzalloc(sizeof(*port), GFP_KERNEL);
78
69
 	if (!port)
79
70
 		return -ENOMEM;
80
71
 
..
..
@@ -139,13 +130,12 @@
139
130
 	}
140
131
 
141
132
 	real_dev = __dev_get_by_index(src_net, nla_get_u32(tb[IFLA_LINK]));
142
-	if (!real_dev || !dev)
133
+	if (!real_dev) {
134
+		NL_SET_ERR_MSG_MOD(extack, "link does not exist");
143
135
 		return -ENODEV;
136
+	}
144
137
 
145
-	if (!data[IFLA_RMNET_MUX_ID])
146
-		return -EINVAL;
147
-
148
-	ep = kzalloc(sizeof(*ep), GFP_ATOMIC);
138
+	ep = kzalloc(sizeof(*ep), GFP_KERNEL);
149
139
 	if (!ep)
150
140
 		return -ENOMEM;
151
141
 
..
..
@@ -156,7 +146,7 @@
156
146
 		goto err0;
157
147
 
158
148
 	port = rmnet_get_port_rtnl(real_dev);
159
-	err = rmnet_vnd_newlink(mux_id, dev, port, real_dev, ep);
149
+	err = rmnet_vnd_newlink(mux_id, dev, port, real_dev, ep, extack);
160
150
 	if (err)
161
151
 		goto err1;
162
152
 
..
..
@@ -263,7 +253,10 @@
263
253
 		netdev_dbg(real_dev, "Kernel unregister\n");
264
254
 		rmnet_force_unassociate_device(real_dev);
265
255
 		break;
266
-
256
+	case NETDEV_CHANGEMTU:
257
+		if (rmnet_vnd_validate_real_dev_mtu(real_dev))
258
+			return NOTIFY_BAD;
259
+		break;
267
260
 	default:
268
261
 		break;
269
262
 	}
..
..
@@ -280,12 +273,16 @@
280
273
 {
281
274
 	u16 mux_id;
282
275
 
283
-	if (!data || !data[IFLA_RMNET_MUX_ID])
276
+	if (!data || !data[IFLA_RMNET_MUX_ID]) {
277
+		NL_SET_ERR_MSG_MOD(extack, "MUX ID not specified");
284
278
 		return -EINVAL;
279
+	}
285
280
 
286
281
 	mux_id = nla_get_u16(data[IFLA_RMNET_MUX_ID]);
287
-	if (mux_id > (RMNET_MAX_LOGICAL_EP - 1))
282
+	if (mux_id > (RMNET_MAX_LOGICAL_EP - 1)) {
283
+		NL_SET_ERR_MSG_MOD(extack, "invalid MUX ID");
288
284
 		return -ERANGE;
285
+	}
289
286
 
290
287
 	return 0;
291
288
 }
..
..
@@ -335,9 +332,17 @@
335
332
 
336
333
 	if (data[IFLA_RMNET_FLAGS]) {
337
334
 		struct ifla_rmnet_flags *flags;
335
+		u32 old_data_format;
338
336
 
337
+		old_data_format = port->data_format;
339
338
 		flags = nla_data(data[IFLA_RMNET_FLAGS]);
340
339
 		port->data_format = flags->flags & flags->mask;
340
+
341
+		if (rmnet_vnd_update_dev_mtu(port, real_dev)) {
342
+			port->data_format = old_data_format;
343
+			NL_SET_ERR_MSG_MOD(extack, "Invalid MTU on real dev");
344
+			return -EINVAL;
345
+		}
341
346
 	}
342
347
 
343
348
 	return 0;
..
..
@@ -430,11 +435,22 @@
430
435
 	/* If there is more than one rmnet dev attached, its probably being
431
436
 	 * used for muxing. Skip the briding in that case
432
437
 	 */
433
-	if (port->nr_rmnet_devs > 1)
438
+	if (port->nr_rmnet_devs > 1) {
439
+		NL_SET_ERR_MSG_MOD(extack, "more than one rmnet dev attached");
434
440
 		return -EINVAL;
441
+	}
435
442
 
436
-	if (rmnet_is_real_dev_registered(slave_dev))
443
+	if (port->rmnet_mode != RMNET_EPMODE_VND) {
444
+		NL_SET_ERR_MSG_MOD(extack, "more than one bridge dev attached");
445
+		return -EINVAL;
446
+	}
447
+
448
+	if (rmnet_is_real_dev_registered(slave_dev)) {
449
+		NL_SET_ERR_MSG_MOD(extack,
450
+				   "slave cannot be another rmnet dev");
451
+
437
452
 		return -EBUSY;
453
+	}
438
454
 
439
455
 	err = rmnet_register_real_device(slave_dev, extack);
440
456
 	if (err)
..
..
@@ -496,4 +512,5 @@
496
512
 
497
513
 module_init(rmnet_init)
498
514
 module_exit(rmnet_exit)
515
+MODULE_ALIAS_RTNL_LINK("rmnet");
499
516
 MODULE_LICENSE("GPL v2");