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1 /* 1 /*
2 * SCSI RDMA (SRP) transport class 2 * SCSI RDMA (SRP) transport class
3 * 3 *
4 * Copyright (C) 2007 FUJITA Tomonori <tomof@a 4 * Copyright (C) 2007 FUJITA Tomonori <tomof@acm.org>
5 * 5 *
6 * This program is free software; you can redi 6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Genera 7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation, 8 * published by the Free Software Foundation, version 2 of the
9 * License. 9 * License.
10 * 10 *
11 * This program is distributed in the hope tha 11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the impl 12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details. 14 * General Public License for more details.
15 * 15 *
16 * You should have received a copy of the GNU 16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to t 17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Flo 18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
19 * 02110-1301 USA 19 * 02110-1301 USA
20 */ 20 */
21 #include <linux/init.h> 21 #include <linux/init.h>
22 #include <linux/module.h> 22 #include <linux/module.h>
23 #include <linux/jiffies.h> 23 #include <linux/jiffies.h>
24 #include <linux/err.h> 24 #include <linux/err.h>
25 #include <linux/slab.h> 25 #include <linux/slab.h>
26 #include <linux/string.h> 26 #include <linux/string.h>
27 27
28 #include <scsi/scsi.h> 28 #include <scsi/scsi.h>
29 #include <scsi/scsi_device.h> 29 #include <scsi/scsi_device.h>
30 #include <scsi/scsi_host.h> 30 #include <scsi/scsi_host.h>
31 #include <scsi/scsi_transport.h> 31 #include <scsi/scsi_transport.h>
32 #include <scsi/scsi_transport_srp.h> 32 #include <scsi/scsi_transport_srp.h>
33 #include "scsi_transport_srp_internal.h" 33 #include "scsi_transport_srp_internal.h"
34 34
35 struct srp_host_attrs { 35 struct srp_host_attrs {
36 atomic_t next_port_id; 36 atomic_t next_port_id;
37 }; 37 };
38 #define to_srp_host_attrs(host) ((struct srp_h 38 #define to_srp_host_attrs(host) ((struct srp_host_attrs *)(host)->shost_data)
39 39
40 #define SRP_HOST_ATTRS 0 40 #define SRP_HOST_ATTRS 0
41 #define SRP_RPORT_ATTRS 2 41 #define SRP_RPORT_ATTRS 2
42 42
43 struct srp_internal { 43 struct srp_internal {
44 struct scsi_transport_template t; 44 struct scsi_transport_template t;
45 struct srp_function_template *f; 45 struct srp_function_template *f;
46 46
47 struct device_attribute *host_attrs[SR !! 47 struct class_device_attribute *host_attrs[SRP_HOST_ATTRS + 1];
48 48
49 struct device_attribute *rport_attrs[S !! 49 struct class_device_attribute *rport_attrs[SRP_RPORT_ATTRS + 1];
50 struct device_attribute private_rport_ !! 50 struct class_device_attribute private_rport_attrs[SRP_RPORT_ATTRS];
51 struct transport_container rport_attr_ 51 struct transport_container rport_attr_cont;
52 }; 52 };
53 53
54 #define to_srp_internal(tmpl) container_of(tmp 54 #define to_srp_internal(tmpl) container_of(tmpl, struct srp_internal, t)
55 55
56 #define dev_to_rport(d) container_of(d, struct 56 #define dev_to_rport(d) container_of(d, struct srp_rport, dev)
57 #define transport_class_to_srp_rport(dev) dev_ !! 57 #define transport_class_to_srp_rport(cdev) dev_to_rport((cdev)->dev)
58 58
59 static int srp_host_setup(struct transport_con 59 static int srp_host_setup(struct transport_container *tc, struct device *dev,
60 struct device *cdev) !! 60 struct class_device *cdev)
61 { 61 {
62 struct Scsi_Host *shost = dev_to_shost 62 struct Scsi_Host *shost = dev_to_shost(dev);
63 struct srp_host_attrs *srp_host = to_s 63 struct srp_host_attrs *srp_host = to_srp_host_attrs(shost);
64 64
65 atomic_set(&srp_host->next_port_id, 0) 65 atomic_set(&srp_host->next_port_id, 0);
66 return 0; 66 return 0;
67 } 67 }
68 68
69 static DECLARE_TRANSPORT_CLASS(srp_host_class, 69 static DECLARE_TRANSPORT_CLASS(srp_host_class, "srp_host", srp_host_setup,
70 NULL, NULL); 70 NULL, NULL);
71 71
72 static DECLARE_TRANSPORT_CLASS(srp_rport_class 72 static DECLARE_TRANSPORT_CLASS(srp_rport_class, "srp_remote_ports",
73 NULL, NULL, NUL 73 NULL, NULL, NULL);
74 74
75 #define SETUP_TEMPLATE(attrb, field, perm, tes 75 #define SETUP_TEMPLATE(attrb, field, perm, test, ro_test, ro_perm) \
76 i->private_##attrb[count] = dev_attr_# !! 76 i->private_##attrb[count] = class_device_attr_##field; \
77 i->private_##attrb[count].attr.mode = 77 i->private_##attrb[count].attr.mode = perm; \
78 if (ro_test) { 78 if (ro_test) { \
79 i->private_##attrb[count].attr 79 i->private_##attrb[count].attr.mode = ro_perm; \
80 i->private_##attrb[count].stor 80 i->private_##attrb[count].store = NULL; \
81 } 81 } \
82 i->attrb[count] = &i->private_##attrb[ 82 i->attrb[count] = &i->private_##attrb[count]; \
83 if (test) 83 if (test) \
84 count++ 84 count++
85 85
86 #define SETUP_RPORT_ATTRIBUTE_RD(field) 86 #define SETUP_RPORT_ATTRIBUTE_RD(field) \
87 SETUP_TEMPLATE(rport_attrs, field, S_I 87 SETUP_TEMPLATE(rport_attrs, field, S_IRUGO, 1, 0, 0)
88 88
89 #define SETUP_RPORT_ATTRIBUTE_RW(field) 89 #define SETUP_RPORT_ATTRIBUTE_RW(field) \
90 SETUP_TEMPLATE(rport_attrs, field, S_I 90 SETUP_TEMPLATE(rport_attrs, field, S_IRUGO | S_IWUSR, \
91 1, 1, S_IRUGO) 91 1, 1, S_IRUGO)
92 92
93 #define SRP_PID(p) \ 93 #define SRP_PID(p) \
94 (p)->port_id[0], (p)->port_id[1], (p)- 94 (p)->port_id[0], (p)->port_id[1], (p)->port_id[2], (p)->port_id[3], \
95 (p)->port_id[4], (p)->port_id[5], (p)- 95 (p)->port_id[4], (p)->port_id[5], (p)->port_id[6], (p)->port_id[7], \
96 (p)->port_id[8], (p)->port_id[9], (p)- 96 (p)->port_id[8], (p)->port_id[9], (p)->port_id[10], (p)->port_id[11], \
97 (p)->port_id[12], (p)->port_id[13], (p 97 (p)->port_id[12], (p)->port_id[13], (p)->port_id[14], (p)->port_id[15]
98 98
99 #define SRP_PID_FMT "%02x:%02x:%02x:%02x:%02x: 99 #define SRP_PID_FMT "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x:" \
100 "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%0 100 "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x"
101 101
102 static ssize_t 102 static ssize_t
103 show_srp_rport_id(struct device *dev, struct d !! 103 show_srp_rport_id(struct class_device *cdev, char *buf)
104 char *buf) <<
105 { 104 {
106 struct srp_rport *rport = transport_cl !! 105 struct srp_rport *rport = transport_class_to_srp_rport(cdev);
107 return sprintf(buf, SRP_PID_FMT "\n", 106 return sprintf(buf, SRP_PID_FMT "\n", SRP_PID(rport));
108 } 107 }
109 108
110 static DEVICE_ATTR(port_id, S_IRUGO, show_srp_ !! 109 static CLASS_DEVICE_ATTR(port_id, S_IRUGO, show_srp_rport_id, NULL);
111 110
112 static const struct { 111 static const struct {
113 u32 value; 112 u32 value;
114 char *name; 113 char *name;
115 } srp_rport_role_names[] = { 114 } srp_rport_role_names[] = {
116 {SRP_RPORT_ROLE_INITIATOR, "SRP Initia 115 {SRP_RPORT_ROLE_INITIATOR, "SRP Initiator"},
117 {SRP_RPORT_ROLE_TARGET, "SRP Target"}, 116 {SRP_RPORT_ROLE_TARGET, "SRP Target"},
118 }; 117 };
119 118
120 static ssize_t 119 static ssize_t
121 show_srp_rport_roles(struct device *dev, struc !! 120 show_srp_rport_roles(struct class_device *cdev, char *buf)
122 char *buf) <<
123 { 121 {
124 struct srp_rport *rport = transport_cl !! 122 struct srp_rport *rport = transport_class_to_srp_rport(cdev);
125 int i; 123 int i;
126 char *name = NULL; 124 char *name = NULL;
127 125
128 for (i = 0; i < ARRAY_SIZE(srp_rport_r 126 for (i = 0; i < ARRAY_SIZE(srp_rport_role_names); i++)
129 if (srp_rport_role_names[i].va 127 if (srp_rport_role_names[i].value == rport->roles) {
130 name = srp_rport_role_ 128 name = srp_rport_role_names[i].name;
131 break; 129 break;
132 } 130 }
133 return sprintf(buf, "%s\n", name ? : " 131 return sprintf(buf, "%s\n", name ? : "unknown");
134 } 132 }
135 133
136 static DEVICE_ATTR(roles, S_IRUGO, show_srp_rp !! 134 static CLASS_DEVICE_ATTR(roles, S_IRUGO, show_srp_rport_roles, NULL);
137 135
138 static void srp_rport_release(struct device *d 136 static void srp_rport_release(struct device *dev)
139 { 137 {
140 struct srp_rport *rport = dev_to_rport 138 struct srp_rport *rport = dev_to_rport(dev);
141 139
142 put_device(dev->parent); 140 put_device(dev->parent);
143 kfree(rport); 141 kfree(rport);
144 } 142 }
145 143
146 static int scsi_is_srp_rport(const struct devi 144 static int scsi_is_srp_rport(const struct device *dev)
147 { 145 {
148 return dev->release == srp_rport_relea 146 return dev->release == srp_rport_release;
149 } 147 }
150 148
151 static int srp_rport_match(struct attribute_co 149 static int srp_rport_match(struct attribute_container *cont,
152 struct device *dev) 150 struct device *dev)
153 { 151 {
154 struct Scsi_Host *shost; 152 struct Scsi_Host *shost;
155 struct srp_internal *i; 153 struct srp_internal *i;
156 154
157 if (!scsi_is_srp_rport(dev)) 155 if (!scsi_is_srp_rport(dev))
158 return 0; 156 return 0;
159 157
160 shost = dev_to_shost(dev->parent); 158 shost = dev_to_shost(dev->parent);
161 if (!shost->transportt) 159 if (!shost->transportt)
162 return 0; 160 return 0;
163 if (shost->transportt->host_attrs.ac.c 161 if (shost->transportt->host_attrs.ac.class != &srp_host_class.class)
164 return 0; 162 return 0;
165 163
166 i = to_srp_internal(shost->transportt) 164 i = to_srp_internal(shost->transportt);
167 return &i->rport_attr_cont.ac == cont; 165 return &i->rport_attr_cont.ac == cont;
168 } 166 }
169 167
170 static int srp_host_match(struct attribute_con 168 static int srp_host_match(struct attribute_container *cont, struct device *dev)
171 { 169 {
172 struct Scsi_Host *shost; 170 struct Scsi_Host *shost;
173 struct srp_internal *i; 171 struct srp_internal *i;
174 172
175 if (!scsi_is_host_device(dev)) 173 if (!scsi_is_host_device(dev))
176 return 0; 174 return 0;
177 175
178 shost = dev_to_shost(dev); 176 shost = dev_to_shost(dev);
179 if (!shost->transportt) 177 if (!shost->transportt)
180 return 0; 178 return 0;
181 if (shost->transportt->host_attrs.ac.c 179 if (shost->transportt->host_attrs.ac.class != &srp_host_class.class)
182 return 0; 180 return 0;
183 181
184 i = to_srp_internal(shost->transportt) 182 i = to_srp_internal(shost->transportt);
185 return &i->t.host_attrs.ac == cont; 183 return &i->t.host_attrs.ac == cont;
186 } 184 }
187 185
188 /** 186 /**
189 * srp_rport_add - add a SRP remote port to th 187 * srp_rport_add - add a SRP remote port to the device hierarchy
190 * @shost: scsi host the remote port is c 188 * @shost: scsi host the remote port is connected to.
191 * @ids: The port id for the remote por 189 * @ids: The port id for the remote port.
192 * 190 *
193 * Publishes a port to the rest of the system. 191 * Publishes a port to the rest of the system.
194 */ 192 */
195 struct srp_rport *srp_rport_add(struct Scsi_Ho 193 struct srp_rport *srp_rport_add(struct Scsi_Host *shost,
196 struct srp_rpo 194 struct srp_rport_identifiers *ids)
197 { 195 {
198 struct srp_rport *rport; 196 struct srp_rport *rport;
199 struct device *parent = &shost->shost_ 197 struct device *parent = &shost->shost_gendev;
200 int id, ret; 198 int id, ret;
201 199
202 rport = kzalloc(sizeof(*rport), GFP_KE 200 rport = kzalloc(sizeof(*rport), GFP_KERNEL);
203 if (!rport) 201 if (!rport)
204 return ERR_PTR(-ENOMEM); 202 return ERR_PTR(-ENOMEM);
205 203
206 device_initialize(&rport->dev); 204 device_initialize(&rport->dev);
207 205
208 rport->dev.parent = get_device(parent) 206 rport->dev.parent = get_device(parent);
209 rport->dev.release = srp_rport_release 207 rport->dev.release = srp_rport_release;
210 208
211 memcpy(rport->port_id, ids->port_id, s 209 memcpy(rport->port_id, ids->port_id, sizeof(rport->port_id));
212 rport->roles = ids->roles; 210 rport->roles = ids->roles;
213 211
214 id = atomic_inc_return(&to_srp_host_at 212 id = atomic_inc_return(&to_srp_host_attrs(shost)->next_port_id);
215 dev_set_name(&rport->dev, "port-%d:%d" !! 213 sprintf(rport->dev.bus_id, "port-%d:%d", shost->host_no, id);
216 214
217 transport_setup_device(&rport->dev); 215 transport_setup_device(&rport->dev);
218 216
219 ret = device_add(&rport->dev); 217 ret = device_add(&rport->dev);
220 if (ret) { 218 if (ret) {
221 transport_destroy_device(&rpor 219 transport_destroy_device(&rport->dev);
222 put_device(&rport->dev); 220 put_device(&rport->dev);
223 return ERR_PTR(ret); 221 return ERR_PTR(ret);
224 } 222 }
225 223
226 if (shost->active_mode & MODE_TARGET & 224 if (shost->active_mode & MODE_TARGET &&
227 ids->roles == SRP_RPORT_ROLE_INITI 225 ids->roles == SRP_RPORT_ROLE_INITIATOR) {
228 ret = srp_tgt_it_nexus_create( 226 ret = srp_tgt_it_nexus_create(shost, (unsigned long)rport,
229 227 rport->port_id);
230 if (ret) { 228 if (ret) {
231 device_del(&rport->dev 229 device_del(&rport->dev);
232 transport_destroy_devi 230 transport_destroy_device(&rport->dev);
233 put_device(&rport->dev 231 put_device(&rport->dev);
234 return ERR_PTR(ret); 232 return ERR_PTR(ret);
235 } 233 }
236 } 234 }
237 235
238 transport_add_device(&rport->dev); 236 transport_add_device(&rport->dev);
239 transport_configure_device(&rport->dev 237 transport_configure_device(&rport->dev);
240 238
241 return rport; 239 return rport;
242 } 240 }
243 EXPORT_SYMBOL_GPL(srp_rport_add); 241 EXPORT_SYMBOL_GPL(srp_rport_add);
244 242
245 /** 243 /**
246 * srp_rport_del - remove a SRP remote port 244 * srp_rport_del - remove a SRP remote port
247 * @rport: SRP remote port to remove 245 * @rport: SRP remote port to remove
248 * 246 *
249 * Removes the specified SRP remote port. 247 * Removes the specified SRP remote port.
250 */ 248 */
251 void srp_rport_del(struct srp_rport *rport) 249 void srp_rport_del(struct srp_rport *rport)
252 { 250 {
253 struct device *dev = &rport->dev; 251 struct device *dev = &rport->dev;
254 struct Scsi_Host *shost = dev_to_shost 252 struct Scsi_Host *shost = dev_to_shost(dev->parent);
255 253
256 if (shost->active_mode & MODE_TARGET & 254 if (shost->active_mode & MODE_TARGET &&
257 rport->roles == SRP_RPORT_ROLE_INI 255 rport->roles == SRP_RPORT_ROLE_INITIATOR)
258 srp_tgt_it_nexus_destroy(shost 256 srp_tgt_it_nexus_destroy(shost, (unsigned long)rport);
259 257
260 transport_remove_device(dev); 258 transport_remove_device(dev);
261 device_del(dev); 259 device_del(dev);
262 transport_destroy_device(dev); 260 transport_destroy_device(dev);
263 put_device(dev); 261 put_device(dev);
264 } 262 }
265 EXPORT_SYMBOL_GPL(srp_rport_del); 263 EXPORT_SYMBOL_GPL(srp_rport_del);
266 264
267 static int do_srp_rport_del(struct device *dev 265 static int do_srp_rport_del(struct device *dev, void *data)
268 { 266 {
269 if (scsi_is_srp_rport(dev)) 267 if (scsi_is_srp_rport(dev))
270 srp_rport_del(dev_to_rport(dev 268 srp_rport_del(dev_to_rport(dev));
271 return 0; 269 return 0;
272 } 270 }
273 271
274 /** 272 /**
275 * srp_remove_host - tear down a Scsi_Host's 273 * srp_remove_host - tear down a Scsi_Host's SRP data structures
276 * @shost: Scsi Host that is torn down 274 * @shost: Scsi Host that is torn down
277 * 275 *
278 * Removes all SRP remote ports for a given Sc 276 * Removes all SRP remote ports for a given Scsi_Host.
279 * Must be called just before scsi_remove_host 277 * Must be called just before scsi_remove_host for SRP HBAs.
280 */ 278 */
281 void srp_remove_host(struct Scsi_Host *shost) 279 void srp_remove_host(struct Scsi_Host *shost)
282 { 280 {
283 device_for_each_child(&shost->shost_ge 281 device_for_each_child(&shost->shost_gendev, NULL, do_srp_rport_del);
284 } 282 }
285 EXPORT_SYMBOL_GPL(srp_remove_host); 283 EXPORT_SYMBOL_GPL(srp_remove_host);
286 284
287 static int srp_tsk_mgmt_response(struct Scsi_H 285 static int srp_tsk_mgmt_response(struct Scsi_Host *shost, u64 nexus, u64 tm_id,
288 int result) 286 int result)
289 { 287 {
290 struct srp_internal *i = to_srp_intern 288 struct srp_internal *i = to_srp_internal(shost->transportt);
291 return i->f->tsk_mgmt_response(shost, 289 return i->f->tsk_mgmt_response(shost, nexus, tm_id, result);
292 } 290 }
293 291
294 static int srp_it_nexus_response(struct Scsi_H 292 static int srp_it_nexus_response(struct Scsi_Host *shost, u64 nexus, int result)
295 { 293 {
296 struct srp_internal *i = to_srp_intern 294 struct srp_internal *i = to_srp_internal(shost->transportt);
297 return i->f->it_nexus_response(shost, 295 return i->f->it_nexus_response(shost, nexus, result);
298 } 296 }
299 297
300 /** 298 /**
301 * srp_attach_transport - instantiate SRP tr 299 * srp_attach_transport - instantiate SRP transport template
302 * @ft: SRP transport class function t 300 * @ft: SRP transport class function template
303 */ 301 */
304 struct scsi_transport_template * 302 struct scsi_transport_template *
305 srp_attach_transport(struct srp_function_templ 303 srp_attach_transport(struct srp_function_template *ft)
306 { 304 {
307 int count; 305 int count;
308 struct srp_internal *i; 306 struct srp_internal *i;
309 307
310 i = kzalloc(sizeof(*i), GFP_KERNEL); 308 i = kzalloc(sizeof(*i), GFP_KERNEL);
311 if (!i) 309 if (!i)
312 return NULL; 310 return NULL;
313 311
314 i->t.tsk_mgmt_response = srp_tsk_mgmt_ 312 i->t.tsk_mgmt_response = srp_tsk_mgmt_response;
315 i->t.it_nexus_response = srp_it_nexus_ 313 i->t.it_nexus_response = srp_it_nexus_response;
316 314
317 i->t.host_size = sizeof(struct srp_hos 315 i->t.host_size = sizeof(struct srp_host_attrs);
318 i->t.host_attrs.ac.attrs = &i->host_at 316 i->t.host_attrs.ac.attrs = &i->host_attrs[0];
319 i->t.host_attrs.ac.class = &srp_host_c 317 i->t.host_attrs.ac.class = &srp_host_class.class;
320 i->t.host_attrs.ac.match = srp_host_ma 318 i->t.host_attrs.ac.match = srp_host_match;
321 i->host_attrs[0] = NULL; 319 i->host_attrs[0] = NULL;
322 transport_container_register(&i->t.hos 320 transport_container_register(&i->t.host_attrs);
323 321
324 i->rport_attr_cont.ac.attrs = &i->rpor 322 i->rport_attr_cont.ac.attrs = &i->rport_attrs[0];
325 i->rport_attr_cont.ac.class = &srp_rpo 323 i->rport_attr_cont.ac.class = &srp_rport_class.class;
326 i->rport_attr_cont.ac.match = srp_rpor 324 i->rport_attr_cont.ac.match = srp_rport_match;
327 transport_container_register(&i->rport 325 transport_container_register(&i->rport_attr_cont);
328 326
329 count = 0; 327 count = 0;
330 SETUP_RPORT_ATTRIBUTE_RD(port_id); 328 SETUP_RPORT_ATTRIBUTE_RD(port_id);
331 SETUP_RPORT_ATTRIBUTE_RD(roles); 329 SETUP_RPORT_ATTRIBUTE_RD(roles);
332 i->rport_attrs[count] = NULL; 330 i->rport_attrs[count] = NULL;
333 331
334 i->f = ft; 332 i->f = ft;
335 333
336 return &i->t; 334 return &i->t;
337 } 335 }
338 EXPORT_SYMBOL_GPL(srp_attach_transport); 336 EXPORT_SYMBOL_GPL(srp_attach_transport);
339 337
340 /** 338 /**
341 * srp_release_transport - release SRP trans 339 * srp_release_transport - release SRP transport template instance
342 * @t: transport template instance 340 * @t: transport template instance
343 */ 341 */
344 void srp_release_transport(struct scsi_transpo 342 void srp_release_transport(struct scsi_transport_template *t)
345 { 343 {
346 struct srp_internal *i = to_srp_intern 344 struct srp_internal *i = to_srp_internal(t);
347 345
348 transport_container_unregister(&i->t.h 346 transport_container_unregister(&i->t.host_attrs);
349 transport_container_unregister(&i->rpo 347 transport_container_unregister(&i->rport_attr_cont);
350 348
351 kfree(i); 349 kfree(i);
352 } 350 }
353 EXPORT_SYMBOL_GPL(srp_release_transport); 351 EXPORT_SYMBOL_GPL(srp_release_transport);
354 352
355 static __init int srp_transport_init(void) 353 static __init int srp_transport_init(void)
356 { 354 {
357 int ret; 355 int ret;
358 356
359 ret = transport_class_register(&srp_ho 357 ret = transport_class_register(&srp_host_class);
360 if (ret) 358 if (ret)
361 return ret; 359 return ret;
362 ret = transport_class_register(&srp_rp 360 ret = transport_class_register(&srp_rport_class);
363 if (ret) 361 if (ret)
364 goto unregister_host_class; 362 goto unregister_host_class;
365 363
366 return 0; 364 return 0;
367 unregister_host_class: 365 unregister_host_class:
368 transport_class_unregister(&srp_host_c 366 transport_class_unregister(&srp_host_class);
369 return ret; 367 return ret;
370 } 368 }
371 369
372 static void __exit srp_transport_exit(void) 370 static void __exit srp_transport_exit(void)
373 { 371 {
374 transport_class_unregister(&srp_host_c 372 transport_class_unregister(&srp_host_class);
375 transport_class_unregister(&srp_rport_ 373 transport_class_unregister(&srp_rport_class);
376 } 374 }
377 375
378 MODULE_AUTHOR("FUJITA Tomonori"); 376 MODULE_AUTHOR("FUJITA Tomonori");
379 MODULE_DESCRIPTION("SRP Transport Attributes") 377 MODULE_DESCRIPTION("SRP Transport Attributes");
380 MODULE_LICENSE("GPL"); 378 MODULE_LICENSE("GPL");
381 379
382 module_init(srp_transport_init); 380 module_init(srp_transport_init);
383 module_exit(srp_transport_exit); 381 module_exit(srp_transport_exit);
384 382
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