Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 1 | /* |
| 2 | * connector.c |
Frederic Weisbecker | 1a5645b | 2009-02-02 23:22:04 -0800 | [diff] [blame] | 3 | * |
Evgeniy Polyakov | acb9c1b | 2009-07-21 12:43:51 -0700 | [diff] [blame] | 4 | * 2004+ Copyright (c) Evgeniy Polyakov <zbr@ioremap.net> |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 5 | * All rights reserved. |
Frederic Weisbecker | 1a5645b | 2009-02-02 23:22:04 -0800 | [diff] [blame] | 6 | * |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 20 | */ |
| 21 | |
| 22 | #include <linux/kernel.h> |
| 23 | #include <linux/module.h> |
| 24 | #include <linux/list.h> |
| 25 | #include <linux/skbuff.h> |
| 26 | #include <linux/netlink.h> |
| 27 | #include <linux/moduleparam.h> |
| 28 | #include <linux/connector.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 29 | #include <linux/slab.h> |
Arjan van de Ven | 8ed965d | 2006-03-23 03:00:21 -0800 | [diff] [blame] | 30 | #include <linux/mutex.h> |
Li Zefan | a0a61a6 | 2008-06-27 20:03:24 -0700 | [diff] [blame] | 31 | #include <linux/proc_fs.h> |
| 32 | #include <linux/spinlock.h> |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 33 | |
| 34 | #include <net/sock.h> |
| 35 | |
| 36 | MODULE_LICENSE("GPL"); |
Evgeniy Polyakov | acb9c1b | 2009-07-21 12:43:51 -0700 | [diff] [blame] | 37 | MODULE_AUTHOR("Evgeniy Polyakov <zbr@ioremap.net>"); |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 38 | MODULE_DESCRIPTION("Generic userspace <-> kernelspace connector."); |
Stephen Hemminger | 3700c3c | 2010-12-10 12:27:49 -0800 | [diff] [blame] | 39 | MODULE_ALIAS_NET_PF_PROTO(PF_NETLINK, NETLINK_CONNECTOR); |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 40 | |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 41 | static struct cn_dev cdev; |
| 42 | |
Li Zefan | 7837467 | 2008-02-26 18:25:53 -0800 | [diff] [blame] | 43 | static int cn_already_initialized; |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 44 | |
| 45 | /* |
| 46 | * msg->seq and msg->ack are used to determine message genealogy. |
| 47 | * When someone sends message it puts there locally unique sequence |
| 48 | * and random acknowledge numbers. Sequence number may be copied into |
| 49 | * nlmsghdr->nlmsg_seq too. |
| 50 | * |
| 51 | * Sequence number is incremented with each message to be sent. |
| 52 | * |
| 53 | * If we expect reply to our message then the sequence number in |
| 54 | * received message MUST be the same as in original message, and |
| 55 | * acknowledge number MUST be the same + 1. |
| 56 | * |
| 57 | * If we receive a message and its sequence number is not equal to the |
| 58 | * one we are expecting then it is a new message. |
| 59 | * |
| 60 | * If we receive a message and its sequence number is the same as one |
| 61 | * we are expecting but it's acknowledgement number is not equal to |
| 62 | * the acknowledgement number in the original message + 1, then it is |
| 63 | * a new message. |
| 64 | * |
| 65 | */ |
Al Viro | dd0fc66 | 2005-10-07 07:46:04 +0100 | [diff] [blame] | 66 | int cn_netlink_send(struct cn_msg *msg, u32 __group, gfp_t gfp_mask) |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 67 | { |
| 68 | struct cn_callback_entry *__cbq; |
| 69 | unsigned int size; |
| 70 | struct sk_buff *skb; |
| 71 | struct nlmsghdr *nlh; |
| 72 | struct cn_msg *data; |
| 73 | struct cn_dev *dev = &cdev; |
| 74 | u32 group = 0; |
| 75 | int found = 0; |
| 76 | |
| 77 | if (!__group) { |
| 78 | spin_lock_bh(&dev->cbdev->queue_lock); |
| 79 | list_for_each_entry(__cbq, &dev->cbdev->queue_list, |
| 80 | callback_entry) { |
Evgeniy Polyakov | acd042b | 2005-09-26 15:06:50 -0700 | [diff] [blame] | 81 | if (cn_cb_equal(&__cbq->id.id, &msg->id)) { |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 82 | found = 1; |
| 83 | group = __cbq->group; |
Li Zefan | fd00eec | 2008-01-04 01:54:38 -0800 | [diff] [blame] | 84 | break; |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 85 | } |
| 86 | } |
| 87 | spin_unlock_bh(&dev->cbdev->queue_lock); |
| 88 | |
| 89 | if (!found) |
| 90 | return -ENODEV; |
| 91 | } else { |
| 92 | group = __group; |
| 93 | } |
| 94 | |
Evgeniy Polyakov | b191ba0 | 2006-03-20 22:21:40 -0800 | [diff] [blame] | 95 | if (!netlink_has_listeners(dev->nls, group)) |
| 96 | return -ESRCH; |
| 97 | |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 98 | size = NLMSG_SPACE(sizeof(*msg) + msg->len); |
| 99 | |
| 100 | skb = alloc_skb(size, gfp_mask); |
| 101 | if (!skb) |
| 102 | return -ENOMEM; |
| 103 | |
| 104 | nlh = NLMSG_PUT(skb, 0, msg->seq, NLMSG_DONE, size - sizeof(*nlh)); |
| 105 | |
| 106 | data = NLMSG_DATA(nlh); |
| 107 | |
| 108 | memcpy(data, msg, sizeof(*data) + msg->len); |
| 109 | |
| 110 | NETLINK_CB(skb).dst_group = group; |
| 111 | |
Evgeniy Polyakov | b191ba0 | 2006-03-20 22:21:40 -0800 | [diff] [blame] | 112 | return netlink_broadcast(dev->nls, skb, 0, group, gfp_mask); |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 113 | |
| 114 | nlmsg_failure: |
| 115 | kfree_skb(skb); |
| 116 | return -EINVAL; |
| 117 | } |
Andrew Morton | deb0e9b | 2006-06-23 02:05:46 -0700 | [diff] [blame] | 118 | EXPORT_SYMBOL_GPL(cn_netlink_send); |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 119 | |
| 120 | /* |
| 121 | * Callback helper - queues work and setup destructor for given data. |
| 122 | */ |
Philipp Reisner | f1489cf | 2009-10-02 02:40:07 +0000 | [diff] [blame] | 123 | static int cn_call_callback(struct sk_buff *skb) |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 124 | { |
Philipp Reisner | 05e52dd | 2007-03-07 12:55:39 -0800 | [diff] [blame] | 125 | struct cn_callback_entry *__cbq, *__new_cbq; |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 126 | struct cn_dev *dev = &cdev; |
Philipp Reisner | 293500a | 2009-10-02 02:40:04 +0000 | [diff] [blame] | 127 | struct cn_msg *msg = NLMSG_DATA(nlmsg_hdr(skb)); |
Evgeniy Polyakov | acd042b | 2005-09-26 15:06:50 -0700 | [diff] [blame] | 128 | int err = -ENODEV; |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 129 | |
| 130 | spin_lock_bh(&dev->cbdev->queue_lock); |
| 131 | list_for_each_entry(__cbq, &dev->cbdev->queue_list, callback_entry) { |
Evgeniy Polyakov | acd042b | 2005-09-26 15:06:50 -0700 | [diff] [blame] | 132 | if (cn_cb_equal(&__cbq->id.id, &msg->id)) { |
Evgeniy Polyakov | a240d9f | 2006-12-18 01:53:58 -0800 | [diff] [blame] | 133 | if (likely(!work_pending(&__cbq->work) && |
Philipp Reisner | f1489cf | 2009-10-02 02:40:07 +0000 | [diff] [blame] | 134 | __cbq->data.skb == NULL)) { |
Philipp Reisner | 293500a | 2009-10-02 02:40:04 +0000 | [diff] [blame] | 135 | __cbq->data.skb = skb; |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 136 | |
Tejun Heo | 6cebb17 | 2010-10-14 23:55:22 +0000 | [diff] [blame] | 137 | if (queue_work(dev->cbdev->cn_queue, |
| 138 | &__cbq->work)) |
Evgeniy Polyakov | acd042b | 2005-09-26 15:06:50 -0700 | [diff] [blame] | 139 | err = 0; |
Li Zefan | 134d99e | 2008-01-04 01:52:02 -0800 | [diff] [blame] | 140 | else |
| 141 | err = -EINVAL; |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 142 | } else { |
Evgeniy Polyakov | acd042b | 2005-09-26 15:06:50 -0700 | [diff] [blame] | 143 | struct cn_callback_data *d; |
Frederic Weisbecker | 1a5645b | 2009-02-02 23:22:04 -0800 | [diff] [blame] | 144 | |
Philipp Reisner | 05e52dd | 2007-03-07 12:55:39 -0800 | [diff] [blame] | 145 | err = -ENOMEM; |
| 146 | __new_cbq = kzalloc(sizeof(struct cn_callback_entry), GFP_ATOMIC); |
| 147 | if (__new_cbq) { |
| 148 | d = &__new_cbq->data; |
Philipp Reisner | 293500a | 2009-10-02 02:40:04 +0000 | [diff] [blame] | 149 | d->skb = skb; |
Evgeniy Polyakov | acd042b | 2005-09-26 15:06:50 -0700 | [diff] [blame] | 150 | d->callback = __cbq->data.callback; |
Philipp Reisner | 05e52dd | 2007-03-07 12:55:39 -0800 | [diff] [blame] | 151 | d->free = __new_cbq; |
Evgeniy Polyakov | acd042b | 2005-09-26 15:06:50 -0700 | [diff] [blame] | 152 | |
Philipp Reisner | 05e52dd | 2007-03-07 12:55:39 -0800 | [diff] [blame] | 153 | INIT_WORK(&__new_cbq->work, |
Evgeniy Polyakov | a240d9f | 2006-12-18 01:53:58 -0800 | [diff] [blame] | 154 | &cn_queue_wrapper); |
Philipp Reisner | 05e52dd | 2007-03-07 12:55:39 -0800 | [diff] [blame] | 155 | |
Tejun Heo | 6cebb17 | 2010-10-14 23:55:22 +0000 | [diff] [blame] | 156 | if (queue_work(dev->cbdev->cn_queue, |
| 157 | &__new_cbq->work)) |
Evgeniy Polyakov | acd042b | 2005-09-26 15:06:50 -0700 | [diff] [blame] | 158 | err = 0; |
| 159 | else { |
Philipp Reisner | 05e52dd | 2007-03-07 12:55:39 -0800 | [diff] [blame] | 160 | kfree(__new_cbq); |
Evgeniy Polyakov | acd042b | 2005-09-26 15:06:50 -0700 | [diff] [blame] | 161 | err = -EINVAL; |
| 162 | } |
Philipp Reisner | 05e52dd | 2007-03-07 12:55:39 -0800 | [diff] [blame] | 163 | } |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 164 | } |
| 165 | break; |
| 166 | } |
| 167 | } |
| 168 | spin_unlock_bh(&dev->cbdev->queue_lock); |
| 169 | |
Evgeniy Polyakov | acd042b | 2005-09-26 15:06:50 -0700 | [diff] [blame] | 170 | return err; |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 171 | } |
| 172 | |
| 173 | /* |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 174 | * Main netlink receiving function. |
| 175 | * |
Li Zefan | 00f5e06 | 2008-01-04 01:55:01 -0800 | [diff] [blame] | 176 | * It checks skb, netlink header and msg sizes, and calls callback helper. |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 177 | */ |
| 178 | static void cn_rx_skb(struct sk_buff *__skb) |
| 179 | { |
| 180 | struct nlmsghdr *nlh; |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 181 | int err; |
| 182 | struct sk_buff *skb; |
| 183 | |
| 184 | skb = skb_get(__skb); |
| 185 | |
| 186 | if (skb->len >= NLMSG_SPACE(0)) { |
Arnaldo Carvalho de Melo | b529ccf | 2007-04-25 19:08:35 -0700 | [diff] [blame] | 187 | nlh = nlmsg_hdr(skb); |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 188 | |
| 189 | if (nlh->nlmsg_len < sizeof(struct cn_msg) || |
| 190 | skb->len < nlh->nlmsg_len || |
| 191 | nlh->nlmsg_len > CONNECTOR_MAX_MSG_SIZE) { |
| 192 | kfree_skb(skb); |
Michal Januszewski | 6cf92e9 | 2007-10-30 20:41:49 -0700 | [diff] [blame] | 193 | return; |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 194 | } |
| 195 | |
Philipp Reisner | f1489cf | 2009-10-02 02:40:07 +0000 | [diff] [blame] | 196 | err = cn_call_callback(skb); |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 197 | if (err < 0) |
| 198 | kfree_skb(skb); |
| 199 | } |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 200 | } |
| 201 | |
| 202 | /* |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 203 | * Callback add routing - adds callback with given ID and name. |
| 204 | * If there is registered callback with the same ID it will not be added. |
| 205 | * |
| 206 | * May sleep. |
| 207 | */ |
Mike Frysinger | 0741241 | 2009-07-17 10:13:21 -0700 | [diff] [blame] | 208 | int cn_add_callback(struct cb_id *id, char *name, |
Philipp Reisner | 7069331 | 2009-10-02 02:40:05 +0000 | [diff] [blame] | 209 | void (*callback)(struct cn_msg *, struct netlink_skb_parms *)) |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 210 | { |
| 211 | int err; |
| 212 | struct cn_dev *dev = &cdev; |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 213 | |
Evgeniy Polyakov | d6cc7f1 | 2006-06-19 23:42:53 -0700 | [diff] [blame] | 214 | if (!cn_already_initialized) |
| 215 | return -EAGAIN; |
| 216 | |
Evgeniy Polyakov | acd042b | 2005-09-26 15:06:50 -0700 | [diff] [blame] | 217 | err = cn_queue_add_callback(dev->cbdev, name, id, callback); |
| 218 | if (err) |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 219 | return err; |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 220 | |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 221 | return 0; |
| 222 | } |
Andrew Morton | deb0e9b | 2006-06-23 02:05:46 -0700 | [diff] [blame] | 223 | EXPORT_SYMBOL_GPL(cn_add_callback); |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 224 | |
| 225 | /* |
| 226 | * Callback remove routing - removes callback |
| 227 | * with given ID. |
| 228 | * If there is no registered callback with given |
| 229 | * ID nothing happens. |
| 230 | * |
| 231 | * May sleep while waiting for reference counter to become zero. |
| 232 | */ |
| 233 | void cn_del_callback(struct cb_id *id) |
| 234 | { |
| 235 | struct cn_dev *dev = &cdev; |
| 236 | |
| 237 | cn_queue_del_callback(dev->cbdev, id); |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 238 | } |
Andrew Morton | deb0e9b | 2006-06-23 02:05:46 -0700 | [diff] [blame] | 239 | EXPORT_SYMBOL_GPL(cn_del_callback); |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 240 | |
Li Zefan | a0a61a6 | 2008-06-27 20:03:24 -0700 | [diff] [blame] | 241 | static int cn_proc_show(struct seq_file *m, void *v) |
| 242 | { |
| 243 | struct cn_queue_dev *dev = cdev.cbdev; |
| 244 | struct cn_callback_entry *cbq; |
| 245 | |
| 246 | seq_printf(m, "Name ID\n"); |
| 247 | |
| 248 | spin_lock_bh(&dev->queue_lock); |
| 249 | |
| 250 | list_for_each_entry(cbq, &dev->queue_list, callback_entry) { |
| 251 | seq_printf(m, "%-15s %u:%u\n", |
| 252 | cbq->id.name, |
| 253 | cbq->id.id.idx, |
| 254 | cbq->id.id.val); |
| 255 | } |
| 256 | |
| 257 | spin_unlock_bh(&dev->queue_lock); |
| 258 | |
| 259 | return 0; |
| 260 | } |
| 261 | |
| 262 | static int cn_proc_open(struct inode *inode, struct file *file) |
| 263 | { |
| 264 | return single_open(file, cn_proc_show, NULL); |
| 265 | } |
| 266 | |
| 267 | static const struct file_operations cn_file_ops = { |
| 268 | .owner = THIS_MODULE, |
| 269 | .open = cn_proc_open, |
| 270 | .read = seq_read, |
| 271 | .llseek = seq_lseek, |
| 272 | .release = single_release |
| 273 | }; |
| 274 | |
Evgeniy Polyakov | d6cc7f1 | 2006-06-19 23:42:53 -0700 | [diff] [blame] | 275 | static int __devinit cn_init(void) |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 276 | { |
| 277 | struct cn_dev *dev = &cdev; |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 278 | |
Denis V. Lunev | cd40b7d | 2007-10-10 21:15:29 -0700 | [diff] [blame] | 279 | dev->input = cn_rx_skb; |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 280 | |
Eric W. Biederman | b4b5102 | 2007-09-12 13:05:38 +0200 | [diff] [blame] | 281 | dev->nls = netlink_kernel_create(&init_net, NETLINK_CONNECTOR, |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 282 | CN_NETLINK_USERS + 0xf, |
Patrick McHardy | af65bdf | 2007-04-20 14:14:21 -0700 | [diff] [blame] | 283 | dev->input, NULL, THIS_MODULE); |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 284 | if (!dev->nls) |
| 285 | return -EIO; |
| 286 | |
| 287 | dev->cbdev = cn_queue_alloc_dev("cqueue", dev->nls); |
| 288 | if (!dev->cbdev) { |
Denis V. Lunev | b7c6ba6 | 2008-01-28 14:41:19 -0800 | [diff] [blame] | 289 | netlink_kernel_release(dev->nls); |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 290 | return -EINVAL; |
| 291 | } |
Frederic Weisbecker | 1a5645b | 2009-02-02 23:22:04 -0800 | [diff] [blame] | 292 | |
Evgeniy Polyakov | d6cc7f1 | 2006-06-19 23:42:53 -0700 | [diff] [blame] | 293 | cn_already_initialized = 1; |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 294 | |
Li Zefan | a0a61a6 | 2008-06-27 20:03:24 -0700 | [diff] [blame] | 295 | proc_net_fops_create(&init_net, "connector", S_IRUGO, &cn_file_ops); |
| 296 | |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 297 | return 0; |
| 298 | } |
| 299 | |
Evgeniy Polyakov | d6cc7f1 | 2006-06-19 23:42:53 -0700 | [diff] [blame] | 300 | static void __devexit cn_fini(void) |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 301 | { |
| 302 | struct cn_dev *dev = &cdev; |
| 303 | |
| 304 | cn_already_initialized = 0; |
| 305 | |
Li Zefan | a0a61a6 | 2008-06-27 20:03:24 -0700 | [diff] [blame] | 306 | proc_net_remove(&init_net, "connector"); |
| 307 | |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 308 | cn_queue_free_dev(dev->cbdev); |
Denis V. Lunev | b7c6ba6 | 2008-01-28 14:41:19 -0800 | [diff] [blame] | 309 | netlink_kernel_release(dev->nls); |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 310 | } |
| 311 | |
Evgeniy Polyakov | d6cc7f1 | 2006-06-19 23:42:53 -0700 | [diff] [blame] | 312 | subsys_initcall(cn_init); |
Evgeniy Polyakov | 7672d0b | 2005-09-11 19:15:07 -0700 | [diff] [blame] | 313 | module_exit(cn_fini); |