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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> | |
20dd3850 | 48 | #include <linux/if_arp.h> |
0d66548a OH |
49 | #include <linux/can/core.h> |
50 | ||
51 | #include "af_can.h" | |
52 | ||
53 | /* | |
54 | * proc filenames for the PF_CAN core | |
55 | */ | |
56 | ||
57 | #define CAN_PROC_VERSION "version" | |
58 | #define CAN_PROC_STATS "stats" | |
59 | #define CAN_PROC_RESET_STATS "reset_stats" | |
60 | #define CAN_PROC_RCVLIST_ALL "rcvlist_all" | |
61 | #define CAN_PROC_RCVLIST_FIL "rcvlist_fil" | |
62 | #define CAN_PROC_RCVLIST_INV "rcvlist_inv" | |
63 | #define CAN_PROC_RCVLIST_SFF "rcvlist_sff" | |
64 | #define CAN_PROC_RCVLIST_EFF "rcvlist_eff" | |
65 | #define CAN_PROC_RCVLIST_ERR "rcvlist_err" | |
66 | ||
67 | static struct proc_dir_entry *can_dir; | |
68 | static struct proc_dir_entry *pde_version; | |
69 | static struct proc_dir_entry *pde_stats; | |
70 | static struct proc_dir_entry *pde_reset_stats; | |
71 | static struct proc_dir_entry *pde_rcvlist_all; | |
72 | static struct proc_dir_entry *pde_rcvlist_fil; | |
73 | static struct proc_dir_entry *pde_rcvlist_inv; | |
74 | static struct proc_dir_entry *pde_rcvlist_sff; | |
75 | static struct proc_dir_entry *pde_rcvlist_eff; | |
76 | static struct proc_dir_entry *pde_rcvlist_err; | |
77 | ||
78 | static int user_reset; | |
79 | ||
80 | static const char rx_list_name[][8] = { | |
81 | [RX_ERR] = "rx_err", | |
82 | [RX_ALL] = "rx_all", | |
83 | [RX_FIL] = "rx_fil", | |
84 | [RX_INV] = "rx_inv", | |
85 | [RX_EFF] = "rx_eff", | |
86 | }; | |
87 | ||
20dd3850 OH |
88 | /* receive filters subscribed for 'all' CAN devices */ |
89 | extern struct dev_rcv_lists can_rx_alldev_list; | |
90 | ||
0d66548a OH |
91 | /* |
92 | * af_can statistics stuff | |
93 | */ | |
94 | ||
95 | static void can_init_stats(void) | |
96 | { | |
97 | /* | |
98 | * This memset function is called from a timer context (when | |
99 | * can_stattimer is active which is the default) OR in a process | |
100 | * context (reading the proc_fs when can_stattimer is disabled). | |
101 | */ | |
102 | memset(&can_stats, 0, sizeof(can_stats)); | |
103 | can_stats.jiffies_init = jiffies; | |
104 | ||
105 | can_pstats.stats_reset++; | |
106 | ||
107 | if (user_reset) { | |
108 | user_reset = 0; | |
109 | can_pstats.user_reset++; | |
110 | } | |
111 | } | |
112 | ||
113 | static unsigned long calc_rate(unsigned long oldjif, unsigned long newjif, | |
114 | unsigned long count) | |
115 | { | |
116 | unsigned long rate; | |
117 | ||
118 | if (oldjif == newjif) | |
119 | return 0; | |
120 | ||
121 | /* see can_stat_update() - this should NEVER happen! */ | |
122 | if (count > (ULONG_MAX / HZ)) { | |
123 | printk(KERN_ERR "can: calc_rate: count exceeded! %ld\n", | |
124 | count); | |
125 | return 99999999; | |
126 | } | |
127 | ||
128 | rate = (count * HZ) / (newjif - oldjif); | |
129 | ||
130 | return rate; | |
131 | } | |
132 | ||
133 | void can_stat_update(unsigned long data) | |
134 | { | |
135 | unsigned long j = jiffies; /* snapshot */ | |
136 | ||
137 | /* restart counting in timer context on user request */ | |
138 | if (user_reset) | |
139 | can_init_stats(); | |
140 | ||
141 | /* restart counting on jiffies overflow */ | |
142 | if (j < can_stats.jiffies_init) | |
143 | can_init_stats(); | |
144 | ||
145 | /* prevent overflow in calc_rate() */ | |
146 | if (can_stats.rx_frames > (ULONG_MAX / HZ)) | |
147 | can_init_stats(); | |
148 | ||
149 | /* prevent overflow in calc_rate() */ | |
150 | if (can_stats.tx_frames > (ULONG_MAX / HZ)) | |
151 | can_init_stats(); | |
152 | ||
153 | /* matches overflow - very improbable */ | |
154 | if (can_stats.matches > (ULONG_MAX / 100)) | |
155 | can_init_stats(); | |
156 | ||
157 | /* calc total values */ | |
158 | if (can_stats.rx_frames) | |
159 | can_stats.total_rx_match_ratio = (can_stats.matches * 100) / | |
160 | can_stats.rx_frames; | |
161 | ||
162 | can_stats.total_tx_rate = calc_rate(can_stats.jiffies_init, j, | |
163 | can_stats.tx_frames); | |
164 | can_stats.total_rx_rate = calc_rate(can_stats.jiffies_init, j, | |
165 | can_stats.rx_frames); | |
166 | ||
167 | /* calc current values */ | |
168 | if (can_stats.rx_frames_delta) | |
169 | can_stats.current_rx_match_ratio = | |
170 | (can_stats.matches_delta * 100) / | |
171 | can_stats.rx_frames_delta; | |
172 | ||
173 | can_stats.current_tx_rate = calc_rate(0, HZ, can_stats.tx_frames_delta); | |
174 | can_stats.current_rx_rate = calc_rate(0, HZ, can_stats.rx_frames_delta); | |
175 | ||
176 | /* check / update maximum values */ | |
177 | if (can_stats.max_tx_rate < can_stats.current_tx_rate) | |
178 | can_stats.max_tx_rate = can_stats.current_tx_rate; | |
179 | ||
180 | if (can_stats.max_rx_rate < can_stats.current_rx_rate) | |
181 | can_stats.max_rx_rate = can_stats.current_rx_rate; | |
182 | ||
183 | if (can_stats.max_rx_match_ratio < can_stats.current_rx_match_ratio) | |
184 | can_stats.max_rx_match_ratio = can_stats.current_rx_match_ratio; | |
185 | ||
186 | /* clear values for 'current rate' calculation */ | |
187 | can_stats.tx_frames_delta = 0; | |
188 | can_stats.rx_frames_delta = 0; | |
189 | can_stats.matches_delta = 0; | |
190 | ||
191 | /* restart timer (one second) */ | |
192 | mod_timer(&can_stattimer, round_jiffies(jiffies + HZ)); | |
193 | } | |
194 | ||
195 | /* | |
196 | * proc read functions | |
0d66548a OH |
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 | ||
0d66548a OH |
205 | hlist_for_each_entry_rcu(r, n, rx_list, list) { |
206 | char *fmt = (r->can_id & CAN_EFF_FLAG)? | |
12e6c419 OH |
207 | " %-5s %08x %08x %pK %pK %8ld %s\n" : |
208 | " %-5s %03x %08x %pK %pK %8ld %s\n"; | |
0d66548a | 209 | |
ea00b8e2 | 210 | seq_printf(m, fmt, DNAME(dev), r->can_id, r->mask, |
12e6c419 | 211 | r->func, r->data, r->matches, r->ident); |
0d66548a | 212 | } |
0d66548a OH |
213 | } |
214 | ||
ea00b8e2 | 215 | static void can_print_recv_banner(struct seq_file *m) |
0d66548a OH |
216 | { |
217 | /* | |
218 | * can1. 00000000 00000000 00000000 | |
219 | * ....... 0 tp20 | |
220 | */ | |
ea00b8e2 | 221 | seq_puts(m, " device can_id can_mask function" |
0d66548a | 222 | " userdata matches ident\n"); |
0d66548a OH |
223 | } |
224 | ||
ea00b8e2 | 225 | static int can_stats_proc_show(struct seq_file *m, void *v) |
0d66548a | 226 | { |
ea00b8e2 AD |
227 | seq_putc(m, '\n'); |
228 | seq_printf(m, " %8ld transmitted frames (TXF)\n", can_stats.tx_frames); | |
229 | seq_printf(m, " %8ld received frames (RXF)\n", can_stats.rx_frames); | |
230 | seq_printf(m, " %8ld matched frames (RXMF)\n", can_stats.matches); | |
0d66548a | 231 | |
ea00b8e2 | 232 | seq_putc(m, '\n'); |
0d66548a OH |
233 | |
234 | if (can_stattimer.function == can_stat_update) { | |
ea00b8e2 | 235 | seq_printf(m, " %8ld %% total match ratio (RXMR)\n", |
0d66548a OH |
236 | can_stats.total_rx_match_ratio); |
237 | ||
ea00b8e2 | 238 | seq_printf(m, " %8ld frames/s total tx rate (TXR)\n", |
0d66548a | 239 | can_stats.total_tx_rate); |
ea00b8e2 | 240 | seq_printf(m, " %8ld frames/s total rx rate (RXR)\n", |
0d66548a OH |
241 | can_stats.total_rx_rate); |
242 | ||
ea00b8e2 | 243 | seq_putc(m, '\n'); |
0d66548a | 244 | |
ea00b8e2 | 245 | seq_printf(m, " %8ld %% current match ratio (CRXMR)\n", |
0d66548a OH |
246 | can_stats.current_rx_match_ratio); |
247 | ||
ea00b8e2 | 248 | seq_printf(m, " %8ld frames/s current tx rate (CTXR)\n", |
0d66548a | 249 | can_stats.current_tx_rate); |
ea00b8e2 | 250 | seq_printf(m, " %8ld frames/s current rx rate (CRXR)\n", |
0d66548a OH |
251 | can_stats.current_rx_rate); |
252 | ||
ea00b8e2 | 253 | seq_putc(m, '\n'); |
0d66548a | 254 | |
ea00b8e2 | 255 | seq_printf(m, " %8ld %% max match ratio (MRXMR)\n", |
0d66548a OH |
256 | can_stats.max_rx_match_ratio); |
257 | ||
ea00b8e2 | 258 | seq_printf(m, " %8ld frames/s max tx rate (MTXR)\n", |
0d66548a | 259 | can_stats.max_tx_rate); |
ea00b8e2 | 260 | seq_printf(m, " %8ld frames/s max rx rate (MRXR)\n", |
0d66548a OH |
261 | can_stats.max_rx_rate); |
262 | ||
ea00b8e2 | 263 | seq_putc(m, '\n'); |
0d66548a OH |
264 | } |
265 | ||
ea00b8e2 | 266 | seq_printf(m, " %8ld current receive list entries (CRCV)\n", |
0d66548a | 267 | can_pstats.rcv_entries); |
ea00b8e2 | 268 | seq_printf(m, " %8ld maximum receive list entries (MRCV)\n", |
0d66548a OH |
269 | can_pstats.rcv_entries_max); |
270 | ||
271 | if (can_pstats.stats_reset) | |
ea00b8e2 | 272 | seq_printf(m, "\n %8ld statistic resets (STR)\n", |
0d66548a OH |
273 | can_pstats.stats_reset); |
274 | ||
275 | if (can_pstats.user_reset) | |
ea00b8e2 | 276 | seq_printf(m, " %8ld user statistic resets (USTR)\n", |
0d66548a OH |
277 | can_pstats.user_reset); |
278 | ||
ea00b8e2 AD |
279 | seq_putc(m, '\n'); |
280 | return 0; | |
0d66548a OH |
281 | } |
282 | ||
ea00b8e2 | 283 | static int can_stats_proc_open(struct inode *inode, struct file *file) |
0d66548a | 284 | { |
ea00b8e2 AD |
285 | return single_open(file, can_stats_proc_show, NULL); |
286 | } | |
287 | ||
288 | static const struct file_operations can_stats_proc_fops = { | |
289 | .owner = THIS_MODULE, | |
290 | .open = can_stats_proc_open, | |
291 | .read = seq_read, | |
292 | .llseek = seq_lseek, | |
293 | .release = single_release, | |
294 | }; | |
0d66548a | 295 | |
ea00b8e2 AD |
296 | static int can_reset_stats_proc_show(struct seq_file *m, void *v) |
297 | { | |
0d66548a OH |
298 | user_reset = 1; |
299 | ||
300 | if (can_stattimer.function == can_stat_update) { | |
ea00b8e2 | 301 | seq_printf(m, "Scheduled statistic reset #%ld.\n", |
0d66548a OH |
302 | can_pstats.stats_reset + 1); |
303 | ||
304 | } else { | |
305 | if (can_stats.jiffies_init != jiffies) | |
306 | can_init_stats(); | |
307 | ||
ea00b8e2 | 308 | seq_printf(m, "Performed statistic reset #%ld.\n", |
0d66548a OH |
309 | can_pstats.stats_reset); |
310 | } | |
ea00b8e2 AD |
311 | return 0; |
312 | } | |
0d66548a | 313 | |
ea00b8e2 AD |
314 | static int can_reset_stats_proc_open(struct inode *inode, struct file *file) |
315 | { | |
316 | return single_open(file, can_reset_stats_proc_show, NULL); | |
0d66548a OH |
317 | } |
318 | ||
ea00b8e2 AD |
319 | static const struct file_operations can_reset_stats_proc_fops = { |
320 | .owner = THIS_MODULE, | |
321 | .open = can_reset_stats_proc_open, | |
322 | .read = seq_read, | |
323 | .llseek = seq_lseek, | |
324 | .release = single_release, | |
325 | }; | |
326 | ||
327 | static int can_version_proc_show(struct seq_file *m, void *v) | |
0d66548a | 328 | { |
ea00b8e2 AD |
329 | seq_printf(m, "%s\n", CAN_VERSION_STRING); |
330 | return 0; | |
331 | } | |
0d66548a | 332 | |
ea00b8e2 AD |
333 | static int can_version_proc_open(struct inode *inode, struct file *file) |
334 | { | |
335 | return single_open(file, can_version_proc_show, NULL); | |
0d66548a OH |
336 | } |
337 | ||
ea00b8e2 AD |
338 | static const struct file_operations can_version_proc_fops = { |
339 | .owner = THIS_MODULE, | |
340 | .open = can_version_proc_open, | |
341 | .read = seq_read, | |
342 | .llseek = seq_lseek, | |
343 | .release = single_release, | |
344 | }; | |
345 | ||
20dd3850 OH |
346 | static inline void can_rcvlist_proc_show_one(struct seq_file *m, int idx, |
347 | struct net_device *dev, | |
348 | struct dev_rcv_lists *d) | |
349 | { | |
350 | if (!hlist_empty(&d->rx[idx])) { | |
351 | can_print_recv_banner(m); | |
352 | can_print_rcvlist(m, &d->rx[idx], dev); | |
353 | } else | |
354 | seq_printf(m, " (%s: no entry)\n", DNAME(dev)); | |
355 | ||
356 | } | |
357 | ||
ea00b8e2 | 358 | static int can_rcvlist_proc_show(struct seq_file *m, void *v) |
0d66548a OH |
359 | { |
360 | /* double cast to prevent GCC warning */ | |
ea00b8e2 | 361 | int idx = (int)(long)m->private; |
20dd3850 | 362 | struct net_device *dev; |
0d66548a | 363 | struct dev_rcv_lists *d; |
0d66548a | 364 | |
ea00b8e2 | 365 | seq_printf(m, "\nreceive list '%s':\n", rx_list_name[idx]); |
0d66548a OH |
366 | |
367 | rcu_read_lock(); | |
0d66548a | 368 | |
20dd3850 OH |
369 | /* receive list for 'all' CAN devices (dev == NULL) */ |
370 | d = &can_rx_alldev_list; | |
371 | can_rcvlist_proc_show_one(m, idx, NULL, d); | |
372 | ||
373 | /* receive list for registered CAN devices */ | |
374 | for_each_netdev_rcu(&init_net, dev) { | |
375 | if (dev->type == ARPHRD_CAN && dev->ml_priv) | |
376 | can_rcvlist_proc_show_one(m, idx, dev, dev->ml_priv); | |
0d66548a | 377 | } |
20dd3850 | 378 | |
0d66548a OH |
379 | rcu_read_unlock(); |
380 | ||
ea00b8e2 AD |
381 | seq_putc(m, '\n'); |
382 | return 0; | |
383 | } | |
0d66548a | 384 | |
ea00b8e2 AD |
385 | static int can_rcvlist_proc_open(struct inode *inode, struct file *file) |
386 | { | |
387 | return single_open(file, can_rcvlist_proc_show, PDE(inode)->data); | |
0d66548a OH |
388 | } |
389 | ||
ea00b8e2 AD |
390 | static const struct file_operations can_rcvlist_proc_fops = { |
391 | .owner = THIS_MODULE, | |
392 | .open = can_rcvlist_proc_open, | |
393 | .read = seq_read, | |
394 | .llseek = seq_lseek, | |
395 | .release = single_release, | |
396 | }; | |
397 | ||
20dd3850 OH |
398 | static inline void can_rcvlist_sff_proc_show_one(struct seq_file *m, |
399 | struct net_device *dev, | |
400 | struct dev_rcv_lists *d) | |
401 | { | |
402 | int i; | |
403 | int all_empty = 1; | |
404 | ||
405 | /* check wether at least one list is non-empty */ | |
406 | for (i = 0; i < 0x800; i++) | |
407 | if (!hlist_empty(&d->rx_sff[i])) { | |
408 | all_empty = 0; | |
409 | break; | |
410 | } | |
411 | ||
412 | if (!all_empty) { | |
413 | can_print_recv_banner(m); | |
414 | for (i = 0; i < 0x800; i++) { | |
415 | if (!hlist_empty(&d->rx_sff[i])) | |
416 | can_print_rcvlist(m, &d->rx_sff[i], dev); | |
417 | } | |
418 | } else | |
419 | seq_printf(m, " (%s: no entry)\n", DNAME(dev)); | |
420 | } | |
421 | ||
ea00b8e2 | 422 | static int can_rcvlist_sff_proc_show(struct seq_file *m, void *v) |
0d66548a | 423 | { |
20dd3850 | 424 | struct net_device *dev; |
0d66548a | 425 | struct dev_rcv_lists *d; |
0d66548a OH |
426 | |
427 | /* RX_SFF */ | |
ea00b8e2 | 428 | seq_puts(m, "\nreceive list 'rx_sff':\n"); |
0d66548a OH |
429 | |
430 | rcu_read_lock(); | |
20dd3850 OH |
431 | |
432 | /* sff receive list for 'all' CAN devices (dev == NULL) */ | |
433 | d = &can_rx_alldev_list; | |
434 | can_rcvlist_sff_proc_show_one(m, NULL, d); | |
435 | ||
436 | /* sff receive list for registered CAN devices */ | |
437 | for_each_netdev_rcu(&init_net, dev) { | |
438 | if (dev->type == ARPHRD_CAN && dev->ml_priv) | |
439 | can_rcvlist_sff_proc_show_one(m, dev, dev->ml_priv); | |
0d66548a | 440 | } |
20dd3850 | 441 | |
0d66548a OH |
442 | rcu_read_unlock(); |
443 | ||
ea00b8e2 AD |
444 | seq_putc(m, '\n'); |
445 | return 0; | |
446 | } | |
0d66548a | 447 | |
ea00b8e2 AD |
448 | static int can_rcvlist_sff_proc_open(struct inode *inode, struct file *file) |
449 | { | |
450 | return single_open(file, can_rcvlist_sff_proc_show, NULL); | |
0d66548a OH |
451 | } |
452 | ||
ea00b8e2 AD |
453 | static const struct file_operations can_rcvlist_sff_proc_fops = { |
454 | .owner = THIS_MODULE, | |
455 | .open = can_rcvlist_sff_proc_open, | |
456 | .read = seq_read, | |
457 | .llseek = seq_lseek, | |
458 | .release = single_release, | |
459 | }; | |
460 | ||
0d66548a OH |
461 | /* |
462 | * proc utility functions | |
463 | */ | |
464 | ||
0d66548a OH |
465 | static void can_remove_proc_readentry(const char *name) |
466 | { | |
467 | if (can_dir) | |
468 | remove_proc_entry(name, can_dir); | |
469 | } | |
470 | ||
471 | /* | |
472 | * can_init_proc - create main CAN proc directory and procfs entries | |
473 | */ | |
474 | void can_init_proc(void) | |
475 | { | |
476 | /* create /proc/net/can directory */ | |
477 | can_dir = proc_mkdir("can", init_net.proc_net); | |
478 | ||
479 | if (!can_dir) { | |
480 | printk(KERN_INFO "can: failed to create /proc/net/can . " | |
481 | "CONFIG_PROC_FS missing?\n"); | |
482 | return; | |
483 | } | |
484 | ||
0d66548a | 485 | /* own procfs entries from the AF_CAN core */ |
ea00b8e2 AD |
486 | pde_version = proc_create(CAN_PROC_VERSION, 0644, can_dir, |
487 | &can_version_proc_fops); | |
488 | pde_stats = proc_create(CAN_PROC_STATS, 0644, can_dir, | |
489 | &can_stats_proc_fops); | |
490 | pde_reset_stats = proc_create(CAN_PROC_RESET_STATS, 0644, can_dir, | |
491 | &can_reset_stats_proc_fops); | |
492 | pde_rcvlist_err = proc_create_data(CAN_PROC_RCVLIST_ERR, 0644, can_dir, | |
493 | &can_rcvlist_proc_fops, (void *)RX_ERR); | |
494 | pde_rcvlist_all = proc_create_data(CAN_PROC_RCVLIST_ALL, 0644, can_dir, | |
495 | &can_rcvlist_proc_fops, (void *)RX_ALL); | |
496 | pde_rcvlist_fil = proc_create_data(CAN_PROC_RCVLIST_FIL, 0644, can_dir, | |
497 | &can_rcvlist_proc_fops, (void *)RX_FIL); | |
498 | pde_rcvlist_inv = proc_create_data(CAN_PROC_RCVLIST_INV, 0644, can_dir, | |
499 | &can_rcvlist_proc_fops, (void *)RX_INV); | |
500 | pde_rcvlist_eff = proc_create_data(CAN_PROC_RCVLIST_EFF, 0644, can_dir, | |
501 | &can_rcvlist_proc_fops, (void *)RX_EFF); | |
502 | pde_rcvlist_sff = proc_create(CAN_PROC_RCVLIST_SFF, 0644, can_dir, | |
503 | &can_rcvlist_sff_proc_fops); | |
0d66548a OH |
504 | } |
505 | ||
506 | /* | |
507 | * can_remove_proc - remove procfs entries and main CAN proc directory | |
508 | */ | |
509 | void can_remove_proc(void) | |
510 | { | |
511 | if (pde_version) | |
512 | can_remove_proc_readentry(CAN_PROC_VERSION); | |
513 | ||
514 | if (pde_stats) | |
515 | can_remove_proc_readentry(CAN_PROC_STATS); | |
516 | ||
517 | if (pde_reset_stats) | |
518 | can_remove_proc_readentry(CAN_PROC_RESET_STATS); | |
519 | ||
520 | if (pde_rcvlist_err) | |
521 | can_remove_proc_readentry(CAN_PROC_RCVLIST_ERR); | |
522 | ||
523 | if (pde_rcvlist_all) | |
524 | can_remove_proc_readentry(CAN_PROC_RCVLIST_ALL); | |
525 | ||
526 | if (pde_rcvlist_fil) | |
527 | can_remove_proc_readentry(CAN_PROC_RCVLIST_FIL); | |
528 | ||
529 | if (pde_rcvlist_inv) | |
530 | can_remove_proc_readentry(CAN_PROC_RCVLIST_INV); | |
531 | ||
532 | if (pde_rcvlist_eff) | |
533 | can_remove_proc_readentry(CAN_PROC_RCVLIST_EFF); | |
534 | ||
535 | if (pde_rcvlist_sff) | |
536 | can_remove_proc_readentry(CAN_PROC_RCVLIST_SFF); | |
537 | ||
538 | if (can_dir) | |
539 | proc_net_remove(&init_net, "can"); | |
540 | } |