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1// SPDX-License-Identifier: GPL-2.0
2#include <linux/proc_fs.h>
3#include <linux/export.h>
4#include <net/net_namespace.h>
5#include <net/netns/generic.h>
6#include <net/bonding.h>
7
8#include "bonding_priv.h"
9
10static void *bond_info_seq_start(struct seq_file *seq, loff_t *pos)
11 __acquires(RCU)
12{
13 struct bonding *bond = seq->private;
14 struct list_head *iter;
15 struct slave *slave;
16 loff_t off = 0;
17
18 rcu_read_lock();
19
20 if (*pos == 0)
21 return SEQ_START_TOKEN;
22
23 bond_for_each_slave_rcu(bond, slave, iter)
24 if (++off == *pos)
25 return slave;
26
27 return NULL;
28}
29
30static void *bond_info_seq_next(struct seq_file *seq, void *v, loff_t *pos)
31{
32 struct bonding *bond = seq->private;
33 struct list_head *iter;
34 struct slave *slave;
35 bool found = false;
36
37 ++*pos;
38 if (v == SEQ_START_TOKEN)
39 return bond_first_slave_rcu(bond);
40
41 bond_for_each_slave_rcu(bond, slave, iter) {
42 if (found)
43 return slave;
44 if (slave == v)
45 found = true;
46 }
47
48 return NULL;
49}
50
51static void bond_info_seq_stop(struct seq_file *seq, void *v)
52 __releases(RCU)
53{
54 rcu_read_unlock();
55}
56
57static void bond_info_show_master(struct seq_file *seq)
58{
59 struct bonding *bond = seq->private;
60 const struct bond_opt_value *optval;
61 struct slave *curr, *primary;
62 int i;
63
64 curr = rcu_dereference(bond->curr_active_slave);
65
66 seq_printf(seq, "Bonding Mode: %s",
67 bond_mode_name(BOND_MODE(bond)));
68
69 if (BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP &&
70 bond->params.fail_over_mac) {
71 optval = bond_opt_get_val(BOND_OPT_FAIL_OVER_MAC,
72 bond->params.fail_over_mac);
73 seq_printf(seq, " (fail_over_mac %s)", optval->string);
74 }
75
76 seq_printf(seq, "\n");
77
78 if (bond_mode_uses_xmit_hash(bond)) {
79 optval = bond_opt_get_val(BOND_OPT_XMIT_HASH,
80 bond->params.xmit_policy);
81 seq_printf(seq, "Transmit Hash Policy: %s (%d)\n",
82 optval->string, bond->params.xmit_policy);
83 }
84
85 if (bond_uses_primary(bond)) {
86 primary = rcu_dereference(bond->primary_slave);
87 seq_printf(seq, "Primary Slave: %s",
88 primary ? primary->dev->name : "None");
89 if (primary) {
90 optval = bond_opt_get_val(BOND_OPT_PRIMARY_RESELECT,
91 bond->params.primary_reselect);
92 seq_printf(seq, " (primary_reselect %s)",
93 optval->string);
94 }
95
96 seq_printf(seq, "\nCurrently Active Slave: %s\n",
97 (curr) ? curr->dev->name : "None");
98 }
99
100 seq_printf(seq, "MII Status: %s\n", netif_carrier_ok(bond->dev) ?
101 "up" : "down");
102 seq_printf(seq, "MII Polling Interval (ms): %d\n", bond->params.miimon);
103 seq_printf(seq, "Up Delay (ms): %d\n",
104 bond->params.updelay * bond->params.miimon);
105 seq_printf(seq, "Down Delay (ms): %d\n",
106 bond->params.downdelay * bond->params.miimon);
107
108
109 /* ARP information */
110 if (bond->params.arp_interval > 0) {
111 int printed = 0;
112 seq_printf(seq, "ARP Polling Interval (ms): %d\n",
113 bond->params.arp_interval);
114
115 seq_printf(seq, "ARP IP target/s (n.n.n.n form):");
116
117 for (i = 0; (i < BOND_MAX_ARP_TARGETS); i++) {
118 if (!bond->params.arp_targets[i])
119 break;
120 if (printed)
121 seq_printf(seq, ",");
122 seq_printf(seq, " %pI4", &bond->params.arp_targets[i]);
123 printed = 1;
124 }
125 seq_printf(seq, "\n");
126 }
127
128 if (BOND_MODE(bond) == BOND_MODE_8023AD) {
129 struct ad_info ad_info;
130
131 seq_puts(seq, "\n802.3ad info\n");
132 seq_printf(seq, "LACP rate: %s\n",
133 (bond->params.lacp_fast) ? "fast" : "slow");
134 seq_printf(seq, "Min links: %d\n", bond->params.min_links);
135 optval = bond_opt_get_val(BOND_OPT_AD_SELECT,
136 bond->params.ad_select);
137 seq_printf(seq, "Aggregator selection policy (ad_select): %s\n",
138 optval->string);
139 if (capable(CAP_NET_ADMIN)) {
140 seq_printf(seq, "System priority: %d\n",
141 BOND_AD_INFO(bond).system.sys_priority);
142 seq_printf(seq, "System MAC address: %pM\n",
143 &BOND_AD_INFO(bond).system.sys_mac_addr);
144
145 if (__bond_3ad_get_active_agg_info(bond, &ad_info)) {
146 seq_printf(seq,
147 "bond %s has no active aggregator\n",
148 bond->dev->name);
149 } else {
150 seq_printf(seq, "Active Aggregator Info:\n");
151
152 seq_printf(seq, "\tAggregator ID: %d\n",
153 ad_info.aggregator_id);
154 seq_printf(seq, "\tNumber of ports: %d\n",
155 ad_info.ports);
156 seq_printf(seq, "\tActor Key: %d\n",
157 ad_info.actor_key);
158 seq_printf(seq, "\tPartner Key: %d\n",
159 ad_info.partner_key);
160 seq_printf(seq, "\tPartner Mac Address: %pM\n",
161 ad_info.partner_system);
162 }
163 }
164 }
165}
166
167static void bond_info_show_slave(struct seq_file *seq,
168 const struct slave *slave)
169{
170 struct bonding *bond = seq->private;
171
172 seq_printf(seq, "\nSlave Interface: %s\n", slave->dev->name);
173 seq_printf(seq, "MII Status: %s\n", bond_slave_link_status(slave->link));
174 if (slave->speed == SPEED_UNKNOWN)
175 seq_printf(seq, "Speed: %s\n", "Unknown");
176 else
177 seq_printf(seq, "Speed: %d Mbps\n", slave->speed);
178
179 if (slave->duplex == DUPLEX_UNKNOWN)
180 seq_printf(seq, "Duplex: %s\n", "Unknown");
181 else
182 seq_printf(seq, "Duplex: %s\n", slave->duplex ? "full" : "half");
183
184 seq_printf(seq, "Link Failure Count: %u\n",
185 slave->link_failure_count);
186
187 seq_printf(seq, "Permanent HW addr: %*phC\n",
188 slave->dev->addr_len, slave->perm_hwaddr);
189 seq_printf(seq, "Slave queue ID: %d\n", slave->queue_id);
190
191 if (BOND_MODE(bond) == BOND_MODE_8023AD) {
192 const struct port *port = &SLAVE_AD_INFO(slave)->port;
193 const struct aggregator *agg = port->aggregator;
194
195 if (agg) {
196 seq_printf(seq, "Aggregator ID: %d\n",
197 agg->aggregator_identifier);
198 seq_printf(seq, "Actor Churn State: %s\n",
199 bond_3ad_churn_desc(port->sm_churn_actor_state));
200 seq_printf(seq, "Partner Churn State: %s\n",
201 bond_3ad_churn_desc(port->sm_churn_partner_state));
202 seq_printf(seq, "Actor Churned Count: %d\n",
203 port->churn_actor_count);
204 seq_printf(seq, "Partner Churned Count: %d\n",
205 port->churn_partner_count);
206
207 if (capable(CAP_NET_ADMIN)) {
208 seq_puts(seq, "details actor lacp pdu:\n");
209 seq_printf(seq, " system priority: %d\n",
210 port->actor_system_priority);
211 seq_printf(seq, " system mac address: %pM\n",
212 &port->actor_system);
213 seq_printf(seq, " port key: %d\n",
214 port->actor_oper_port_key);
215 seq_printf(seq, " port priority: %d\n",
216 port->actor_port_priority);
217 seq_printf(seq, " port number: %d\n",
218 port->actor_port_number);
219 seq_printf(seq, " port state: %d\n",
220 port->actor_oper_port_state);
221
222 seq_puts(seq, "details partner lacp pdu:\n");
223 seq_printf(seq, " system priority: %d\n",
224 port->partner_oper.system_priority);
225 seq_printf(seq, " system mac address: %pM\n",
226 &port->partner_oper.system);
227 seq_printf(seq, " oper key: %d\n",
228 port->partner_oper.key);
229 seq_printf(seq, " port priority: %d\n",
230 port->partner_oper.port_priority);
231 seq_printf(seq, " port number: %d\n",
232 port->partner_oper.port_number);
233 seq_printf(seq, " port state: %d\n",
234 port->partner_oper.port_state);
235 }
236 } else {
237 seq_puts(seq, "Aggregator ID: N/A\n");
238 }
239 }
240}
241
242static int bond_info_seq_show(struct seq_file *seq, void *v)
243{
244 if (v == SEQ_START_TOKEN) {
245 seq_printf(seq, "%s\n", bond_version);
246 bond_info_show_master(seq);
247 } else
248 bond_info_show_slave(seq, v);
249
250 return 0;
251}
252
253static const struct seq_operations bond_info_seq_ops = {
254 .start = bond_info_seq_start,
255 .next = bond_info_seq_next,
256 .stop = bond_info_seq_stop,
257 .show = bond_info_seq_show,
258};
259
260static int bond_info_open(struct inode *inode, struct file *file)
261{
262 struct seq_file *seq;
263 int res;
264
265 res = seq_open(file, &bond_info_seq_ops);
266 if (!res) {
267 /* recover the pointer buried in proc_dir_entry data */
268 seq = file->private_data;
269 seq->private = PDE_DATA(inode);
270 }
271
272 return res;
273}
274
275static const struct file_operations bond_info_fops = {
276 .owner = THIS_MODULE,
277 .open = bond_info_open,
278 .read = seq_read,
279 .llseek = seq_lseek,
280 .release = seq_release,
281};
282
283void bond_create_proc_entry(struct bonding *bond)
284{
285 struct net_device *bond_dev = bond->dev;
286 struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id);
287
288 if (bn->proc_dir) {
289 bond->proc_entry = proc_create_data(bond_dev->name,
290 0444, bn->proc_dir,
291 &bond_info_fops, bond);
292 if (bond->proc_entry == NULL)
293 netdev_warn(bond_dev, "Cannot create /proc/net/%s/%s\n",
294 DRV_NAME, bond_dev->name);
295 else
296 memcpy(bond->proc_file_name, bond_dev->name, IFNAMSIZ);
297 }
298}
299
300void bond_remove_proc_entry(struct bonding *bond)
301{
302 struct net_device *bond_dev = bond->dev;
303 struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id);
304
305 if (bn->proc_dir && bond->proc_entry) {
306 remove_proc_entry(bond->proc_file_name, bn->proc_dir);
307 memset(bond->proc_file_name, 0, IFNAMSIZ);
308 bond->proc_entry = NULL;
309 }
310}
311
312/* Create the bonding directory under /proc/net, if doesn't exist yet.
313 * Caller must hold rtnl_lock.
314 */
315void __net_init bond_create_proc_dir(struct bond_net *bn)
316{
317 if (!bn->proc_dir) {
318 bn->proc_dir = proc_mkdir(DRV_NAME, bn->net->proc_net);
319 if (!bn->proc_dir)
320 pr_warn("Warning: Cannot create /proc/net/%s\n",
321 DRV_NAME);
322 }
323}
324
325/* Destroy the bonding directory under /proc/net, if empty.
326 * Caller must hold rtnl_lock.
327 */
328void __net_exit bond_destroy_proc_dir(struct bond_net *bn)
329{
330 if (bn->proc_dir) {
331 remove_proc_entry(DRV_NAME, bn->net->proc_net);
332 bn->proc_dir = NULL;
333 }
334}
1// SPDX-License-Identifier: GPL-2.0
2#include <linux/proc_fs.h>
3#include <linux/ethtool.h>
4#include <linux/export.h>
5#include <net/net_namespace.h>
6#include <net/netns/generic.h>
7#include <net/bonding.h>
8
9#include "bonding_priv.h"
10
11static void *bond_info_seq_start(struct seq_file *seq, loff_t *pos)
12 __acquires(RCU)
13{
14 struct bonding *bond = pde_data(file_inode(seq->file));
15 struct list_head *iter;
16 struct slave *slave;
17 loff_t off = 0;
18
19 rcu_read_lock();
20
21 if (*pos == 0)
22 return SEQ_START_TOKEN;
23
24 bond_for_each_slave_rcu(bond, slave, iter)
25 if (++off == *pos)
26 return slave;
27
28 return NULL;
29}
30
31static void *bond_info_seq_next(struct seq_file *seq, void *v, loff_t *pos)
32{
33 struct bonding *bond = pde_data(file_inode(seq->file));
34 struct list_head *iter;
35 struct slave *slave;
36 bool found = false;
37
38 ++*pos;
39 if (v == SEQ_START_TOKEN)
40 return bond_first_slave_rcu(bond);
41
42 bond_for_each_slave_rcu(bond, slave, iter) {
43 if (found)
44 return slave;
45 if (slave == v)
46 found = true;
47 }
48
49 return NULL;
50}
51
52static void bond_info_seq_stop(struct seq_file *seq, void *v)
53 __releases(RCU)
54{
55 rcu_read_unlock();
56}
57
58static void bond_info_show_master(struct seq_file *seq)
59{
60 struct bonding *bond = pde_data(file_inode(seq->file));
61 const struct bond_opt_value *optval;
62 struct slave *curr, *primary;
63 int i;
64
65 curr = rcu_dereference(bond->curr_active_slave);
66
67 seq_printf(seq, "Bonding Mode: %s",
68 bond_mode_name(BOND_MODE(bond)));
69
70 if (BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP &&
71 bond->params.fail_over_mac) {
72 optval = bond_opt_get_val(BOND_OPT_FAIL_OVER_MAC,
73 bond->params.fail_over_mac);
74 seq_printf(seq, " (fail_over_mac %s)", optval->string);
75 }
76
77 seq_printf(seq, "\n");
78
79 if (bond_mode_uses_xmit_hash(bond)) {
80 optval = bond_opt_get_val(BOND_OPT_XMIT_HASH,
81 bond->params.xmit_policy);
82 seq_printf(seq, "Transmit Hash Policy: %s (%d)\n",
83 optval->string, bond->params.xmit_policy);
84 }
85
86 if (bond_uses_primary(bond)) {
87 primary = rcu_dereference(bond->primary_slave);
88 seq_printf(seq, "Primary Slave: %s",
89 primary ? primary->dev->name : "None");
90 if (primary) {
91 optval = bond_opt_get_val(BOND_OPT_PRIMARY_RESELECT,
92 bond->params.primary_reselect);
93 seq_printf(seq, " (primary_reselect %s)",
94 optval->string);
95 }
96
97 seq_printf(seq, "\nCurrently Active Slave: %s\n",
98 (curr) ? curr->dev->name : "None");
99 }
100
101 seq_printf(seq, "MII Status: %s\n", netif_carrier_ok(bond->dev) ?
102 "up" : "down");
103 seq_printf(seq, "MII Polling Interval (ms): %d\n", bond->params.miimon);
104 seq_printf(seq, "Up Delay (ms): %d\n",
105 bond->params.updelay * bond->params.miimon);
106 seq_printf(seq, "Down Delay (ms): %d\n",
107 bond->params.downdelay * bond->params.miimon);
108 seq_printf(seq, "Peer Notification Delay (ms): %d\n",
109 bond->params.peer_notif_delay * bond->params.miimon);
110
111
112 /* ARP information */
113 if (bond->params.arp_interval > 0) {
114 int printed = 0;
115
116 seq_printf(seq, "ARP Polling Interval (ms): %d\n",
117 bond->params.arp_interval);
118 seq_printf(seq, "ARP Missed Max: %u\n",
119 bond->params.missed_max);
120
121 seq_printf(seq, "ARP IP target/s (n.n.n.n form):");
122
123 for (i = 0; (i < BOND_MAX_ARP_TARGETS); i++) {
124 if (!bond->params.arp_targets[i])
125 break;
126 if (printed)
127 seq_printf(seq, ",");
128 seq_printf(seq, " %pI4", &bond->params.arp_targets[i]);
129 printed = 1;
130 }
131 seq_printf(seq, "\n");
132
133#if IS_ENABLED(CONFIG_IPV6)
134 printed = 0;
135 seq_printf(seq, "NS IPv6 target/s (xx::xx form):");
136
137 for (i = 0; (i < BOND_MAX_NS_TARGETS); i++) {
138 if (ipv6_addr_any(&bond->params.ns_targets[i]))
139 break;
140 if (printed)
141 seq_printf(seq, ",");
142 seq_printf(seq, " %pI6c", &bond->params.ns_targets[i]);
143 printed = 1;
144 }
145 seq_printf(seq, "\n");
146#endif
147 }
148
149 if (BOND_MODE(bond) == BOND_MODE_8023AD) {
150 struct ad_info ad_info;
151
152 seq_puts(seq, "\n802.3ad info\n");
153 seq_printf(seq, "LACP active: %s\n",
154 (bond->params.lacp_active) ? "on" : "off");
155 seq_printf(seq, "LACP rate: %s\n",
156 (bond->params.lacp_fast) ? "fast" : "slow");
157 seq_printf(seq, "Min links: %d\n", bond->params.min_links);
158 optval = bond_opt_get_val(BOND_OPT_AD_SELECT,
159 bond->params.ad_select);
160 seq_printf(seq, "Aggregator selection policy (ad_select): %s\n",
161 optval->string);
162 if (capable(CAP_NET_ADMIN)) {
163 seq_printf(seq, "System priority: %d\n",
164 BOND_AD_INFO(bond).system.sys_priority);
165 seq_printf(seq, "System MAC address: %pM\n",
166 &BOND_AD_INFO(bond).system.sys_mac_addr);
167
168 if (__bond_3ad_get_active_agg_info(bond, &ad_info)) {
169 seq_printf(seq,
170 "bond %s has no active aggregator\n",
171 bond->dev->name);
172 } else {
173 seq_printf(seq, "Active Aggregator Info:\n");
174
175 seq_printf(seq, "\tAggregator ID: %d\n",
176 ad_info.aggregator_id);
177 seq_printf(seq, "\tNumber of ports: %d\n",
178 ad_info.ports);
179 seq_printf(seq, "\tActor Key: %d\n",
180 ad_info.actor_key);
181 seq_printf(seq, "\tPartner Key: %d\n",
182 ad_info.partner_key);
183 seq_printf(seq, "\tPartner Mac Address: %pM\n",
184 ad_info.partner_system);
185 }
186 }
187 }
188}
189
190static void bond_info_show_slave(struct seq_file *seq,
191 const struct slave *slave)
192{
193 struct bonding *bond = pde_data(file_inode(seq->file));
194
195 seq_printf(seq, "\nSlave Interface: %s\n", slave->dev->name);
196 seq_printf(seq, "MII Status: %s\n", bond_slave_link_status(slave->link));
197 if (slave->speed == SPEED_UNKNOWN)
198 seq_printf(seq, "Speed: %s\n", "Unknown");
199 else
200 seq_printf(seq, "Speed: %d Mbps\n", slave->speed);
201
202 if (slave->duplex == DUPLEX_UNKNOWN)
203 seq_printf(seq, "Duplex: %s\n", "Unknown");
204 else
205 seq_printf(seq, "Duplex: %s\n", slave->duplex ? "full" : "half");
206
207 seq_printf(seq, "Link Failure Count: %u\n",
208 slave->link_failure_count);
209
210 seq_printf(seq, "Permanent HW addr: %*phC\n",
211 slave->dev->addr_len, slave->perm_hwaddr);
212 seq_printf(seq, "Slave queue ID: %d\n", slave->queue_id);
213
214 if (BOND_MODE(bond) == BOND_MODE_8023AD) {
215 const struct port *port = &SLAVE_AD_INFO(slave)->port;
216 const struct aggregator *agg = port->aggregator;
217
218 if (agg) {
219 seq_printf(seq, "Aggregator ID: %d\n",
220 agg->aggregator_identifier);
221 seq_printf(seq, "Actor Churn State: %s\n",
222 bond_3ad_churn_desc(port->sm_churn_actor_state));
223 seq_printf(seq, "Partner Churn State: %s\n",
224 bond_3ad_churn_desc(port->sm_churn_partner_state));
225 seq_printf(seq, "Actor Churned Count: %d\n",
226 port->churn_actor_count);
227 seq_printf(seq, "Partner Churned Count: %d\n",
228 port->churn_partner_count);
229
230 if (capable(CAP_NET_ADMIN)) {
231 seq_puts(seq, "details actor lacp pdu:\n");
232 seq_printf(seq, " system priority: %d\n",
233 port->actor_system_priority);
234 seq_printf(seq, " system mac address: %pM\n",
235 &port->actor_system);
236 seq_printf(seq, " port key: %d\n",
237 port->actor_oper_port_key);
238 seq_printf(seq, " port priority: %d\n",
239 port->actor_port_priority);
240 seq_printf(seq, " port number: %d\n",
241 port->actor_port_number);
242 seq_printf(seq, " port state: %d\n",
243 port->actor_oper_port_state);
244
245 seq_puts(seq, "details partner lacp pdu:\n");
246 seq_printf(seq, " system priority: %d\n",
247 port->partner_oper.system_priority);
248 seq_printf(seq, " system mac address: %pM\n",
249 &port->partner_oper.system);
250 seq_printf(seq, " oper key: %d\n",
251 port->partner_oper.key);
252 seq_printf(seq, " port priority: %d\n",
253 port->partner_oper.port_priority);
254 seq_printf(seq, " port number: %d\n",
255 port->partner_oper.port_number);
256 seq_printf(seq, " port state: %d\n",
257 port->partner_oper.port_state);
258 }
259 } else {
260 seq_puts(seq, "Aggregator ID: N/A\n");
261 }
262 }
263}
264
265static int bond_info_seq_show(struct seq_file *seq, void *v)
266{
267 if (v == SEQ_START_TOKEN) {
268 seq_printf(seq, "%s\n", bond_version);
269 bond_info_show_master(seq);
270 } else
271 bond_info_show_slave(seq, v);
272
273 return 0;
274}
275
276static const struct seq_operations bond_info_seq_ops = {
277 .start = bond_info_seq_start,
278 .next = bond_info_seq_next,
279 .stop = bond_info_seq_stop,
280 .show = bond_info_seq_show,
281};
282
283void bond_create_proc_entry(struct bonding *bond)
284{
285 struct net_device *bond_dev = bond->dev;
286 struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id);
287
288 if (bn->proc_dir) {
289 bond->proc_entry = proc_create_seq_data(bond_dev->name, 0444,
290 bn->proc_dir, &bond_info_seq_ops, bond);
291 if (bond->proc_entry == NULL)
292 netdev_warn(bond_dev, "Cannot create /proc/net/%s/%s\n",
293 DRV_NAME, bond_dev->name);
294 else
295 memcpy(bond->proc_file_name, bond_dev->name, IFNAMSIZ);
296 }
297}
298
299void bond_remove_proc_entry(struct bonding *bond)
300{
301 struct net_device *bond_dev = bond->dev;
302 struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id);
303
304 if (bn->proc_dir && bond->proc_entry) {
305 remove_proc_entry(bond->proc_file_name, bn->proc_dir);
306 memset(bond->proc_file_name, 0, IFNAMSIZ);
307 bond->proc_entry = NULL;
308 }
309}
310
311/* Create the bonding directory under /proc/net, if doesn't exist yet.
312 * Caller must hold rtnl_lock.
313 */
314void __net_init bond_create_proc_dir(struct bond_net *bn)
315{
316 if (!bn->proc_dir) {
317 bn->proc_dir = proc_mkdir(DRV_NAME, bn->net->proc_net);
318 if (!bn->proc_dir)
319 pr_warn("Warning: Cannot create /proc/net/%s\n",
320 DRV_NAME);
321 }
322}
323
324/* Destroy the bonding directory under /proc/net, if empty.
325 */
326void __net_exit bond_destroy_proc_dir(struct bond_net *bn)
327{
328 if (bn->proc_dir) {
329 remove_proc_entry(DRV_NAME, bn->net->proc_net);
330 bn->proc_dir = NULL;
331 }
332}