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0d66548a OH |
1 | /* |
2 | * proc.c - procfs support for Protocol family CAN core module | |
3 | * | |
4 | * Copyright (c) 2002-2007 Volkswagen Group Electronic Research | |
5 | * All rights reserved. | |
6 | * | |
7 | * Redistribution and use in source and binary forms, with or without | |
8 | * modification, are permitted provided that the following conditions | |
9 | * are met: | |
10 | * 1. Redistributions of source code must retain the above copyright | |
11 | * notice, this list of conditions and the following disclaimer. | |
12 | * 2. Redistributions in binary form must reproduce the above copyright | |
13 | * notice, this list of conditions and the following disclaimer in the | |
14 | * documentation and/or other materials provided with the distribution. | |
15 | * 3. Neither the name of Volkswagen nor the names of its contributors | |
16 | * may be used to endorse or promote products derived from this software | |
17 | * without specific prior written permission. | |
18 | * | |
19 | * Alternatively, provided that this notice is retained in full, this | |
20 | * software may be distributed under the terms of the GNU General | |
21 | * Public License ("GPL") version 2, in which case the provisions of the | |
22 | * GPL apply INSTEAD OF those given above. | |
23 | * | |
24 | * The provided data structures and external interfaces from this code | |
25 | * are not restricted to be used by modules with a GPL compatible license. | |
26 | * | |
27 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
28 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
29 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
30 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
31 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
32 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
33 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
34 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
35 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
36 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
37 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH | |
38 | * DAMAGE. | |
39 | * | |
40 | * Send feedback to <socketcan-users@lists.berlios.de> | |
41 | * | |
42 | */ | |
43 | ||
44 | #include <linux/module.h> | |
45 | #include <linux/proc_fs.h> | |
46 | #include <linux/list.h> | |
47 | #include <linux/rcupdate.h> | |
48 | #include <linux/can/core.h> | |
49 | ||
50 | #include "af_can.h" | |
51 | ||
52 | /* | |
53 | * proc filenames for the PF_CAN core | |
54 | */ | |
55 | ||
56 | #define CAN_PROC_VERSION "version" | |
57 | #define CAN_PROC_STATS "stats" | |
58 | #define CAN_PROC_RESET_STATS "reset_stats" | |
59 | #define CAN_PROC_RCVLIST_ALL "rcvlist_all" | |
60 | #define CAN_PROC_RCVLIST_FIL "rcvlist_fil" | |
61 | #define CAN_PROC_RCVLIST_INV "rcvlist_inv" | |
62 | #define CAN_PROC_RCVLIST_SFF "rcvlist_sff" | |
63 | #define CAN_PROC_RCVLIST_EFF "rcvlist_eff" | |
64 | #define CAN_PROC_RCVLIST_ERR "rcvlist_err" | |
65 | ||
66 | static struct proc_dir_entry *can_dir; | |
67 | static struct proc_dir_entry *pde_version; | |
68 | static struct proc_dir_entry *pde_stats; | |
69 | static struct proc_dir_entry *pde_reset_stats; | |
70 | static struct proc_dir_entry *pde_rcvlist_all; | |
71 | static struct proc_dir_entry *pde_rcvlist_fil; | |
72 | static struct proc_dir_entry *pde_rcvlist_inv; | |
73 | static struct proc_dir_entry *pde_rcvlist_sff; | |
74 | static struct proc_dir_entry *pde_rcvlist_eff; | |
75 | static struct proc_dir_entry *pde_rcvlist_err; | |
76 | ||
77 | static int user_reset; | |
78 | ||
79 | static const char rx_list_name[][8] = { | |
80 | [RX_ERR] = "rx_err", | |
81 | [RX_ALL] = "rx_all", | |
82 | [RX_FIL] = "rx_fil", | |
83 | [RX_INV] = "rx_inv", | |
84 | [RX_EFF] = "rx_eff", | |
85 | }; | |
86 | ||
87 | /* | |
88 | * af_can statistics stuff | |
89 | */ | |
90 | ||
91 | static void can_init_stats(void) | |
92 | { | |
93 | /* | |
94 | * This memset function is called from a timer context (when | |
95 | * can_stattimer is active which is the default) OR in a process | |
96 | * context (reading the proc_fs when can_stattimer is disabled). | |
97 | */ | |
98 | memset(&can_stats, 0, sizeof(can_stats)); | |
99 | can_stats.jiffies_init = jiffies; | |
100 | ||
101 | can_pstats.stats_reset++; | |
102 | ||
103 | if (user_reset) { | |
104 | user_reset = 0; | |
105 | can_pstats.user_reset++; | |
106 | } | |
107 | } | |
108 | ||
109 | static unsigned long calc_rate(unsigned long oldjif, unsigned long newjif, | |
110 | unsigned long count) | |
111 | { | |
112 | unsigned long rate; | |
113 | ||
114 | if (oldjif == newjif) | |
115 | return 0; | |
116 | ||
117 | /* see can_stat_update() - this should NEVER happen! */ | |
118 | if (count > (ULONG_MAX / HZ)) { | |
119 | printk(KERN_ERR "can: calc_rate: count exceeded! %ld\n", | |
120 | count); | |
121 | return 99999999; | |
122 | } | |
123 | ||
124 | rate = (count * HZ) / (newjif - oldjif); | |
125 | ||
126 | return rate; | |
127 | } | |
128 | ||
129 | void can_stat_update(unsigned long data) | |
130 | { | |
131 | unsigned long j = jiffies; /* snapshot */ | |
132 | ||
133 | /* restart counting in timer context on user request */ | |
134 | if (user_reset) | |
135 | can_init_stats(); | |
136 | ||
137 | /* restart counting on jiffies overflow */ | |
138 | if (j < can_stats.jiffies_init) | |
139 | can_init_stats(); | |
140 | ||
141 | /* prevent overflow in calc_rate() */ | |
142 | if (can_stats.rx_frames > (ULONG_MAX / HZ)) | |
143 | can_init_stats(); | |
144 | ||
145 | /* prevent overflow in calc_rate() */ | |
146 | if (can_stats.tx_frames > (ULONG_MAX / HZ)) | |
147 | can_init_stats(); | |
148 | ||
149 | /* matches overflow - very improbable */ | |
150 | if (can_stats.matches > (ULONG_MAX / 100)) | |
151 | can_init_stats(); | |
152 | ||
153 | /* calc total values */ | |
154 | if (can_stats.rx_frames) | |
155 | can_stats.total_rx_match_ratio = (can_stats.matches * 100) / | |
156 | can_stats.rx_frames; | |
157 | ||
158 | can_stats.total_tx_rate = calc_rate(can_stats.jiffies_init, j, | |
159 | can_stats.tx_frames); | |
160 | can_stats.total_rx_rate = calc_rate(can_stats.jiffies_init, j, | |
161 | can_stats.rx_frames); | |
162 | ||
163 | /* calc current values */ | |
164 | if (can_stats.rx_frames_delta) | |
165 | can_stats.current_rx_match_ratio = | |
166 | (can_stats.matches_delta * 100) / | |
167 | can_stats.rx_frames_delta; | |
168 | ||
169 | can_stats.current_tx_rate = calc_rate(0, HZ, can_stats.tx_frames_delta); | |
170 | can_stats.current_rx_rate = calc_rate(0, HZ, can_stats.rx_frames_delta); | |
171 | ||
172 | /* check / update maximum values */ | |
173 | if (can_stats.max_tx_rate < can_stats.current_tx_rate) | |
174 | can_stats.max_tx_rate = can_stats.current_tx_rate; | |
175 | ||
176 | if (can_stats.max_rx_rate < can_stats.current_rx_rate) | |
177 | can_stats.max_rx_rate = can_stats.current_rx_rate; | |
178 | ||
179 | if (can_stats.max_rx_match_ratio < can_stats.current_rx_match_ratio) | |
180 | can_stats.max_rx_match_ratio = can_stats.current_rx_match_ratio; | |
181 | ||
182 | /* clear values for 'current rate' calculation */ | |
183 | can_stats.tx_frames_delta = 0; | |
184 | can_stats.rx_frames_delta = 0; | |
185 | can_stats.matches_delta = 0; | |
186 | ||
187 | /* restart timer (one second) */ | |
188 | mod_timer(&can_stattimer, round_jiffies(jiffies + HZ)); | |
189 | } | |
190 | ||
191 | /* | |
192 | * proc read functions | |
193 | * | |
194 | * From known use-cases we expect about 10 entries in a receive list to be | |
195 | * printed in the proc_fs. So PAGE_SIZE is definitely enough space here. | |
196 | * | |
197 | */ | |
198 | ||
ea00b8e2 AD |
199 | static void can_print_rcvlist(struct seq_file *m, struct hlist_head *rx_list, |
200 | struct net_device *dev) | |
0d66548a OH |
201 | { |
202 | struct receiver *r; | |
203 | struct hlist_node *n; | |
204 | ||
205 | rcu_read_lock(); | |
206 | hlist_for_each_entry_rcu(r, n, rx_list, list) { | |
207 | char *fmt = (r->can_id & CAN_EFF_FLAG)? | |
208 | " %-5s %08X %08x %08x %08x %8ld %s\n" : | |
209 | " %-5s %03X %08x %08lx %08lx %8ld %s\n"; | |
210 | ||
ea00b8e2 | 211 | seq_printf(m, fmt, DNAME(dev), r->can_id, r->mask, |
0d66548a OH |
212 | (unsigned long)r->func, (unsigned long)r->data, |
213 | r->matches, r->ident); | |
0d66548a OH |
214 | } |
215 | rcu_read_unlock(); | |
0d66548a OH |
216 | } |
217 | ||
ea00b8e2 | 218 | static void can_print_recv_banner(struct seq_file *m) |
0d66548a OH |
219 | { |
220 | /* | |
221 | * can1. 00000000 00000000 00000000 | |
222 | * ....... 0 tp20 | |
223 | */ | |
ea00b8e2 | 224 | seq_puts(m, " device can_id can_mask function" |
0d66548a | 225 | " userdata matches ident\n"); |
0d66548a OH |
226 | } |
227 | ||
ea00b8e2 | 228 | static int can_stats_proc_show(struct seq_file *m, void *v) |
0d66548a | 229 | { |
ea00b8e2 AD |
230 | seq_putc(m, '\n'); |
231 | seq_printf(m, " %8ld transmitted frames (TXF)\n", can_stats.tx_frames); | |
232 | seq_printf(m, " %8ld received frames (RXF)\n", can_stats.rx_frames); | |
233 | seq_printf(m, " %8ld matched frames (RXMF)\n", can_stats.matches); | |
0d66548a | 234 | |
ea00b8e2 | 235 | seq_putc(m, '\n'); |
0d66548a OH |
236 | |
237 | if (can_stattimer.function == can_stat_update) { | |
ea00b8e2 | 238 | seq_printf(m, " %8ld %% total match ratio (RXMR)\n", |
0d66548a OH |
239 | can_stats.total_rx_match_ratio); |
240 | ||
ea00b8e2 | 241 | seq_printf(m, " %8ld frames/s total tx rate (TXR)\n", |
0d66548a | 242 | can_stats.total_tx_rate); |
ea00b8e2 | 243 | seq_printf(m, " %8ld frames/s total rx rate (RXR)\n", |
0d66548a OH |
244 | can_stats.total_rx_rate); |
245 | ||
ea00b8e2 | 246 | seq_putc(m, '\n'); |
0d66548a | 247 | |
ea00b8e2 | 248 | seq_printf(m, " %8ld %% current match ratio (CRXMR)\n", |
0d66548a OH |
249 | can_stats.current_rx_match_ratio); |
250 | ||
ea00b8e2 | 251 | seq_printf(m, " %8ld frames/s current tx rate (CTXR)\n", |
0d66548a | 252 | can_stats.current_tx_rate); |
ea00b8e2 | 253 | seq_printf(m, " %8ld frames/s current rx rate (CRXR)\n", |
0d66548a OH |
254 | can_stats.current_rx_rate); |
255 | ||
ea00b8e2 | 256 | seq_putc(m, '\n'); |
0d66548a | 257 | |
ea00b8e2 | 258 | seq_printf(m, " %8ld %% max match ratio (MRXMR)\n", |
0d66548a OH |
259 | can_stats.max_rx_match_ratio); |
260 | ||
ea00b8e2 | 261 | seq_printf(m, " %8ld frames/s max tx rate (MTXR)\n", |
0d66548a | 262 | can_stats.max_tx_rate); |
ea00b8e2 | 263 | seq_printf(m, " %8ld frames/s max rx rate (MRXR)\n", |
0d66548a OH |
264 | can_stats.max_rx_rate); |
265 | ||
ea00b8e2 | 266 | seq_putc(m, '\n'); |
0d66548a OH |
267 | } |
268 | ||
ea00b8e2 | 269 | seq_printf(m, " %8ld current receive list entries (CRCV)\n", |
0d66548a | 270 | can_pstats.rcv_entries); |
ea00b8e2 | 271 | seq_printf(m, " %8ld maximum receive list entries (MRCV)\n", |
0d66548a OH |
272 | can_pstats.rcv_entries_max); |
273 | ||
274 | if (can_pstats.stats_reset) | |
ea00b8e2 | 275 | seq_printf(m, "\n %8ld statistic resets (STR)\n", |
0d66548a OH |
276 | can_pstats.stats_reset); |
277 | ||
278 | if (can_pstats.user_reset) | |
ea00b8e2 | 279 | seq_printf(m, " %8ld user statistic resets (USTR)\n", |
0d66548a OH |
280 | can_pstats.user_reset); |
281 | ||
ea00b8e2 AD |
282 | seq_putc(m, '\n'); |
283 | return 0; | |
0d66548a OH |
284 | } |
285 | ||
ea00b8e2 | 286 | static int can_stats_proc_open(struct inode *inode, struct file *file) |
0d66548a | 287 | { |
ea00b8e2 AD |
288 | return single_open(file, can_stats_proc_show, NULL); |
289 | } | |
290 | ||
291 | static const struct file_operations can_stats_proc_fops = { | |
292 | .owner = THIS_MODULE, | |
293 | .open = can_stats_proc_open, | |
294 | .read = seq_read, | |
295 | .llseek = seq_lseek, | |
296 | .release = single_release, | |
297 | }; | |
0d66548a | 298 | |
ea00b8e2 AD |
299 | static int can_reset_stats_proc_show(struct seq_file *m, void *v) |
300 | { | |
0d66548a OH |
301 | user_reset = 1; |
302 | ||
303 | if (can_stattimer.function == can_stat_update) { | |
ea00b8e2 | 304 | seq_printf(m, "Scheduled statistic reset #%ld.\n", |
0d66548a OH |
305 | can_pstats.stats_reset + 1); |
306 | ||
307 | } else { | |
308 | if (can_stats.jiffies_init != jiffies) | |
309 | can_init_stats(); | |
310 | ||
ea00b8e2 | 311 | seq_printf(m, "Performed statistic reset #%ld.\n", |
0d66548a OH |
312 | can_pstats.stats_reset); |
313 | } | |
ea00b8e2 AD |
314 | return 0; |
315 | } | |
0d66548a | 316 | |
ea00b8e2 AD |
317 | static int can_reset_stats_proc_open(struct inode *inode, struct file *file) |
318 | { | |
319 | return single_open(file, can_reset_stats_proc_show, NULL); | |
0d66548a OH |
320 | } |
321 | ||
ea00b8e2 AD |
322 | static const struct file_operations can_reset_stats_proc_fops = { |
323 | .owner = THIS_MODULE, | |
324 | .open = can_reset_stats_proc_open, | |
325 | .read = seq_read, | |
326 | .llseek = seq_lseek, | |
327 | .release = single_release, | |
328 | }; | |
329 | ||
330 | static int can_version_proc_show(struct seq_file *m, void *v) | |
0d66548a | 331 | { |
ea00b8e2 AD |
332 | seq_printf(m, "%s\n", CAN_VERSION_STRING); |
333 | return 0; | |
334 | } | |
0d66548a | 335 | |
ea00b8e2 AD |
336 | static int can_version_proc_open(struct inode *inode, struct file *file) |
337 | { | |
338 | return single_open(file, can_version_proc_show, NULL); | |
0d66548a OH |
339 | } |
340 | ||
ea00b8e2 AD |
341 | static const struct file_operations can_version_proc_fops = { |
342 | .owner = THIS_MODULE, | |
343 | .open = can_version_proc_open, | |
344 | .read = seq_read, | |
345 | .llseek = seq_lseek, | |
346 | .release = single_release, | |
347 | }; | |
348 | ||
349 | static int can_rcvlist_proc_show(struct seq_file *m, void *v) | |
0d66548a OH |
350 | { |
351 | /* double cast to prevent GCC warning */ | |
ea00b8e2 | 352 | int idx = (int)(long)m->private; |
0d66548a OH |
353 | struct dev_rcv_lists *d; |
354 | struct hlist_node *n; | |
355 | ||
ea00b8e2 | 356 | seq_printf(m, "\nreceive list '%s':\n", rx_list_name[idx]); |
0d66548a OH |
357 | |
358 | rcu_read_lock(); | |
359 | hlist_for_each_entry_rcu(d, n, &can_rx_dev_list, list) { | |
360 | ||
361 | if (!hlist_empty(&d->rx[idx])) { | |
ea00b8e2 AD |
362 | can_print_recv_banner(m); |
363 | can_print_rcvlist(m, &d->rx[idx], d->dev); | |
0d66548a | 364 | } else |
ea00b8e2 | 365 | seq_printf(m, " (%s: no entry)\n", DNAME(d->dev)); |
0d66548a OH |
366 | } |
367 | rcu_read_unlock(); | |
368 | ||
ea00b8e2 AD |
369 | seq_putc(m, '\n'); |
370 | return 0; | |
371 | } | |
0d66548a | 372 | |
ea00b8e2 AD |
373 | static int can_rcvlist_proc_open(struct inode *inode, struct file *file) |
374 | { | |
375 | return single_open(file, can_rcvlist_proc_show, PDE(inode)->data); | |
0d66548a OH |
376 | } |
377 | ||
ea00b8e2 AD |
378 | static const struct file_operations can_rcvlist_proc_fops = { |
379 | .owner = THIS_MODULE, | |
380 | .open = can_rcvlist_proc_open, | |
381 | .read = seq_read, | |
382 | .llseek = seq_lseek, | |
383 | .release = single_release, | |
384 | }; | |
385 | ||
386 | static int can_rcvlist_sff_proc_show(struct seq_file *m, void *v) | |
0d66548a | 387 | { |
0d66548a OH |
388 | struct dev_rcv_lists *d; |
389 | struct hlist_node *n; | |
390 | ||
391 | /* RX_SFF */ | |
ea00b8e2 | 392 | seq_puts(m, "\nreceive list 'rx_sff':\n"); |
0d66548a OH |
393 | |
394 | rcu_read_lock(); | |
395 | hlist_for_each_entry_rcu(d, n, &can_rx_dev_list, list) { | |
396 | int i, all_empty = 1; | |
397 | /* check wether at least one list is non-empty */ | |
398 | for (i = 0; i < 0x800; i++) | |
399 | if (!hlist_empty(&d->rx_sff[i])) { | |
400 | all_empty = 0; | |
401 | break; | |
402 | } | |
403 | ||
404 | if (!all_empty) { | |
ea00b8e2 | 405 | can_print_recv_banner(m); |
0d66548a | 406 | for (i = 0; i < 0x800; i++) { |
ea00b8e2 AD |
407 | if (!hlist_empty(&d->rx_sff[i])) |
408 | can_print_rcvlist(m, &d->rx_sff[i], | |
409 | d->dev); | |
0d66548a OH |
410 | } |
411 | } else | |
ea00b8e2 | 412 | seq_printf(m, " (%s: no entry)\n", DNAME(d->dev)); |
0d66548a OH |
413 | } |
414 | rcu_read_unlock(); | |
415 | ||
ea00b8e2 AD |
416 | seq_putc(m, '\n'); |
417 | return 0; | |
418 | } | |
0d66548a | 419 | |
ea00b8e2 AD |
420 | static int can_rcvlist_sff_proc_open(struct inode *inode, struct file *file) |
421 | { | |
422 | return single_open(file, can_rcvlist_sff_proc_show, NULL); | |
0d66548a OH |
423 | } |
424 | ||
ea00b8e2 AD |
425 | static const struct file_operations can_rcvlist_sff_proc_fops = { |
426 | .owner = THIS_MODULE, | |
427 | .open = can_rcvlist_sff_proc_open, | |
428 | .read = seq_read, | |
429 | .llseek = seq_lseek, | |
430 | .release = single_release, | |
431 | }; | |
432 | ||
0d66548a OH |
433 | /* |
434 | * proc utility functions | |
435 | */ | |
436 | ||
0d66548a OH |
437 | static void can_remove_proc_readentry(const char *name) |
438 | { | |
439 | if (can_dir) | |
440 | remove_proc_entry(name, can_dir); | |
441 | } | |
442 | ||
443 | /* | |
444 | * can_init_proc - create main CAN proc directory and procfs entries | |
445 | */ | |
446 | void can_init_proc(void) | |
447 | { | |
448 | /* create /proc/net/can directory */ | |
449 | can_dir = proc_mkdir("can", init_net.proc_net); | |
450 | ||
451 | if (!can_dir) { | |
452 | printk(KERN_INFO "can: failed to create /proc/net/can . " | |
453 | "CONFIG_PROC_FS missing?\n"); | |
454 | return; | |
455 | } | |
456 | ||
0d66548a | 457 | /* own procfs entries from the AF_CAN core */ |
ea00b8e2 AD |
458 | pde_version = proc_create(CAN_PROC_VERSION, 0644, can_dir, |
459 | &can_version_proc_fops); | |
460 | pde_stats = proc_create(CAN_PROC_STATS, 0644, can_dir, | |
461 | &can_stats_proc_fops); | |
462 | pde_reset_stats = proc_create(CAN_PROC_RESET_STATS, 0644, can_dir, | |
463 | &can_reset_stats_proc_fops); | |
464 | pde_rcvlist_err = proc_create_data(CAN_PROC_RCVLIST_ERR, 0644, can_dir, | |
465 | &can_rcvlist_proc_fops, (void *)RX_ERR); | |
466 | pde_rcvlist_all = proc_create_data(CAN_PROC_RCVLIST_ALL, 0644, can_dir, | |
467 | &can_rcvlist_proc_fops, (void *)RX_ALL); | |
468 | pde_rcvlist_fil = proc_create_data(CAN_PROC_RCVLIST_FIL, 0644, can_dir, | |
469 | &can_rcvlist_proc_fops, (void *)RX_FIL); | |
470 | pde_rcvlist_inv = proc_create_data(CAN_PROC_RCVLIST_INV, 0644, can_dir, | |
471 | &can_rcvlist_proc_fops, (void *)RX_INV); | |
472 | pde_rcvlist_eff = proc_create_data(CAN_PROC_RCVLIST_EFF, 0644, can_dir, | |
473 | &can_rcvlist_proc_fops, (void *)RX_EFF); | |
474 | pde_rcvlist_sff = proc_create(CAN_PROC_RCVLIST_SFF, 0644, can_dir, | |
475 | &can_rcvlist_sff_proc_fops); | |
0d66548a OH |
476 | } |
477 | ||
478 | /* | |
479 | * can_remove_proc - remove procfs entries and main CAN proc directory | |
480 | */ | |
481 | void can_remove_proc(void) | |
482 | { | |
483 | if (pde_version) | |
484 | can_remove_proc_readentry(CAN_PROC_VERSION); | |
485 | ||
486 | if (pde_stats) | |
487 | can_remove_proc_readentry(CAN_PROC_STATS); | |
488 | ||
489 | if (pde_reset_stats) | |
490 | can_remove_proc_readentry(CAN_PROC_RESET_STATS); | |
491 | ||
492 | if (pde_rcvlist_err) | |
493 | can_remove_proc_readentry(CAN_PROC_RCVLIST_ERR); | |
494 | ||
495 | if (pde_rcvlist_all) | |
496 | can_remove_proc_readentry(CAN_PROC_RCVLIST_ALL); | |
497 | ||
498 | if (pde_rcvlist_fil) | |
499 | can_remove_proc_readentry(CAN_PROC_RCVLIST_FIL); | |
500 | ||
501 | if (pde_rcvlist_inv) | |
502 | can_remove_proc_readentry(CAN_PROC_RCVLIST_INV); | |
503 | ||
504 | if (pde_rcvlist_eff) | |
505 | can_remove_proc_readentry(CAN_PROC_RCVLIST_EFF); | |
506 | ||
507 | if (pde_rcvlist_sff) | |
508 | can_remove_proc_readentry(CAN_PROC_RCVLIST_SFF); | |
509 | ||
510 | if (can_dir) | |
511 | proc_net_remove(&init_net, "can"); | |
512 | } |