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2023-12-11 072de836f53be56a70cecf70b43ae43b7ce17376 
 kernel/drivers/net/wimax/i2400m/debugfs.c
....@@ -1,24 +1,10 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
12 /*
23  * Intel Wireless WiMAX Connection 2400m
34  * Debugfs interfaces to manipulate driver and device information
45  *
5
- *
66  * Copyright (C) 2007 Intel Corporation <linux-wimax@intel.com>
77  * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
8
- *
9
- * This program is free software; you can redistribute it and/or
10
- * modify it under the terms of the GNU General Public License version
11
- * 2 as published by the Free Software Foundation.
12
- *
13
- * This program is distributed in the hope that it will be useful,
14
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
15
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16
- * GNU General Public License for more details.
17
- *
18
- * You should have received a copy of the GNU General Public License
19
- * along with this program; if not, write to the Free Software
20
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21
- * 02110-1301, USA.
228  */
239 
2410 #include <linux/debugfs.h>
....@@ -40,18 +26,9 @@
4026 	*val = netif_queue_stopped(i2400m->wimax_dev.net_dev);
4127 	return 0;
4228 }
43
-DEFINE_SIMPLE_ATTRIBUTE(fops_netdev_queue_stopped,
29
+DEFINE_DEBUGFS_ATTRIBUTE(fops_netdev_queue_stopped,
4430 			debugfs_netdev_queue_stopped_get,
4531 			NULL, "%llu\n");
46
-
47
-
48
-static
49
-struct dentry *debugfs_create_netdev_queue_stopped(
50
-	const char *name, struct dentry *parent, struct i2400m *i2400m)
51
-{
52
-	return debugfs_create_file(name, 0400, parent, i2400m,
53
-				   &fops_netdev_queue_stopped);
54
-}
5532 
5633 /*
5734  * We don't allow partial reads of this file, as then the reader would
....@@ -177,18 +154,9 @@
177154 		result = 0;
178155 	return result;
179156 }
180
-DEFINE_SIMPLE_ATTRIBUTE(fops_i2400m_suspend,
157
+DEFINE_DEBUGFS_ATTRIBUTE(fops_i2400m_suspend,
181158 			NULL, debugfs_i2400m_suspend_set,
182159 			"%llu\n");
183
-
184
-static
185
-struct dentry *debugfs_create_i2400m_suspend(
186
-	const char *name, struct dentry *parent, struct i2400m *i2400m)
187
-{
188
-	return debugfs_create_file(name, 0200, parent, i2400m,
189
-				   &fops_i2400m_suspend);
190
-}
191
-
192160 
193161 /*
194162  * Reset the device
....@@ -215,77 +183,29 @@
215183 	}
216184 	return result;
217185 }
218
-DEFINE_SIMPLE_ATTRIBUTE(fops_i2400m_reset,
186
+DEFINE_DEBUGFS_ATTRIBUTE(fops_i2400m_reset,
219187 			NULL, debugfs_i2400m_reset_set,
220188 			"%llu\n");
221189 
222
-static
223
-struct dentry *debugfs_create_i2400m_reset(
224
-	const char *name, struct dentry *parent, struct i2400m *i2400m)
190
+void i2400m_debugfs_add(struct i2400m *i2400m)
225191 {
226
-	return debugfs_create_file(name, 0200, parent, i2400m,
227
-				   &fops_i2400m_reset);
228
-}
229
-
230
-
231
-#define __debugfs_register(prefix, name, parent)			\
232
-do {									\
233
-	result = d_level_register_debugfs(prefix, name, parent);	\
234
-	if (result < 0)							\
235
-		goto error;						\
236
-} while (0)
237
-
238
-
239
-int i2400m_debugfs_add(struct i2400m *i2400m)
240
-{
241
-	int result;
242
-	struct device *dev = i2400m_dev(i2400m);
243192 	struct dentry *dentry = i2400m->wimax_dev.debugfs_dentry;
244
-	struct dentry *fd;
245193 
246194 	dentry = debugfs_create_dir("i2400m", dentry);
247
-	result = PTR_ERR(dentry);
248
-	if (IS_ERR(dentry)) {
249
-		if (result == -ENODEV)
250
-			result = 0;	/* No debugfs support */
251
-		goto error;
252
-	}
253195 	i2400m->debugfs_dentry = dentry;
254
-	__debugfs_register("dl_", control, dentry);
255
-	__debugfs_register("dl_", driver, dentry);
256
-	__debugfs_register("dl_", debugfs, dentry);
257
-	__debugfs_register("dl_", fw, dentry);
258
-	__debugfs_register("dl_", netdev, dentry);
259
-	__debugfs_register("dl_", rfkill, dentry);
260
-	__debugfs_register("dl_", rx, dentry);
261
-	__debugfs_register("dl_", tx, dentry);
262196 
263
-	fd = debugfs_create_size_t("tx_in", 0400, dentry,
264
-				   &i2400m->tx_in);
265
-	result = PTR_ERR(fd);
266
-	if (IS_ERR(fd) && result != -ENODEV) {
267
-		dev_err(dev, "Can't create debugfs entry "
268
-			"tx_in: %d\n", result);
269
-		goto error;
270
-	}
197
+	d_level_register_debugfs("dl_", control, dentry);
198
+	d_level_register_debugfs("dl_", driver, dentry);
199
+	d_level_register_debugfs("dl_", debugfs, dentry);
200
+	d_level_register_debugfs("dl_", fw, dentry);
201
+	d_level_register_debugfs("dl_", netdev, dentry);
202
+	d_level_register_debugfs("dl_", rfkill, dentry);
203
+	d_level_register_debugfs("dl_", rx, dentry);
204
+	d_level_register_debugfs("dl_", tx, dentry);
271205 
272
-	fd = debugfs_create_size_t("tx_out", 0400, dentry,
273
-				   &i2400m->tx_out);
274
-	result = PTR_ERR(fd);
275
-	if (IS_ERR(fd) && result != -ENODEV) {
276
-		dev_err(dev, "Can't create debugfs entry "
277
-			"tx_out: %d\n", result);
278
-		goto error;
279
-	}
280
-
281
-	fd = debugfs_create_u32("state", 0600, dentry,
282
-				&i2400m->state);
283
-	result = PTR_ERR(fd);
284
-	if (IS_ERR(fd) && result != -ENODEV) {
285
-		dev_err(dev, "Can't create debugfs entry "
286
-			"state: %d\n", result);
287
-		goto error;
288
-	}
206
+	debugfs_create_size_t("tx_in", 0400, dentry, &i2400m->tx_in);
207
+	debugfs_create_size_t("tx_out", 0400, dentry, &i2400m->tx_out);
208
+	debugfs_create_u32("state", 0600, dentry, &i2400m->state);
289209 
290210 	/*
291211 	 * Trace received messages from user space
....@@ -309,60 +229,22 @@
309229 	 * It is not really very atomic, but it is also not too
310230 	 * critical.
311231 	 */
312
-	fd = debugfs_create_u8("trace_msg_from_user", 0600, dentry,
313
-			       &i2400m->trace_msg_from_user);
314
-	result = PTR_ERR(fd);
315
-	if (IS_ERR(fd) && result != -ENODEV) {
316
-		dev_err(dev, "Can't create debugfs entry "
317
-			"trace_msg_from_user: %d\n", result);
318
-		goto error;
319
-	}
232
+	debugfs_create_u8("trace_msg_from_user", 0600, dentry,
233
+			  &i2400m->trace_msg_from_user);
320234 
321
-	fd = debugfs_create_netdev_queue_stopped("netdev_queue_stopped",
322
-						 dentry, i2400m);
323
-	result = PTR_ERR(fd);
324
-	if (IS_ERR(fd) && result != -ENODEV) {
325
-		dev_err(dev, "Can't create debugfs entry "
326
-			"netdev_queue_stopped: %d\n", result);
327
-		goto error;
328
-	}
235
+	debugfs_create_file("netdev_queue_stopped", 0400, dentry, i2400m,
236
+			    &fops_netdev_queue_stopped);
329237 
330
-	fd = debugfs_create_file("rx_stats", 0600, dentry, i2400m,
331
-				 &i2400m_rx_stats_fops);
332
-	result = PTR_ERR(fd);
333
-	if (IS_ERR(fd) && result != -ENODEV) {
334
-		dev_err(dev, "Can't create debugfs entry "
335
-			"rx_stats: %d\n", result);
336
-		goto error;
337
-	}
238
+	debugfs_create_file("rx_stats", 0600, dentry, i2400m,
239
+			    &i2400m_rx_stats_fops);
338240 
339
-	fd = debugfs_create_file("tx_stats", 0600, dentry, i2400m,
340
-				 &i2400m_tx_stats_fops);
341
-	result = PTR_ERR(fd);
342
-	if (IS_ERR(fd) && result != -ENODEV) {
343
-		dev_err(dev, "Can't create debugfs entry "
344
-			"tx_stats: %d\n", result);
345
-		goto error;
346
-	}
241
+	debugfs_create_file("tx_stats", 0600, dentry, i2400m,
242
+			    &i2400m_tx_stats_fops);
347243 
348
-	fd = debugfs_create_i2400m_suspend("suspend", dentry, i2400m);
349
-	result = PTR_ERR(fd);
350
-	if (IS_ERR(fd) && result != -ENODEV) {
351
-		dev_err(dev, "Can't create debugfs entry suspend: %d\n",
352
-			result);
353
-		goto error;
354
-	}
244
+	debugfs_create_file("suspend", 0200, dentry, i2400m,
245
+			    &fops_i2400m_suspend);
355246 
356
-	fd = debugfs_create_i2400m_reset("reset", dentry, i2400m);
357
-	result = PTR_ERR(fd);
358
-	if (IS_ERR(fd) && result != -ENODEV) {
359
-		dev_err(dev, "Can't create debugfs entry reset: %d\n", result);
360
-		goto error;
361
-	}
362
-
363
-	result = 0;
364
-error:
365
-	return result;
247
+	debugfs_create_file("reset", 0200, dentry, i2400m, &fops_i2400m_reset);
366248 }
367249 
368250 void i2400m_debugfs_rm(struct i2400m *i2400m)