1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright 2020 Linaro Limited 4 * 5 * Author: Daniel Lezcano <daniel.lezcano@linaro.org> 6 * 7 * Generic netlink for thermal management framework 8 */ 9 #include <linux/module.h> 10 #include <linux/kernel.h> 11 #include <net/genetlink.h> 12 #include <uapi/linux/thermal.h> 13 14 #include "thermal_core.h" 15 16 static const struct genl_multicast_group thermal_genl_mcgrps[] = { 17 { .name = THERMAL_GENL_SAMPLING_GROUP_NAME, }, 18 { .name = THERMAL_GENL_EVENT_GROUP_NAME, }, 19 }; 20 21 static const struct nla_policy thermal_genl_policy[THERMAL_GENL_ATTR_MAX + 1] = { 22 /* Thermal zone */ 23 [THERMAL_GENL_ATTR_TZ] = { .type = NLA_NESTED }, 24 [THERMAL_GENL_ATTR_TZ_ID] = { .type = NLA_U32 }, 25 [THERMAL_GENL_ATTR_TZ_TEMP] = { .type = NLA_U32 }, 26 [THERMAL_GENL_ATTR_TZ_TRIP] = { .type = NLA_NESTED }, 27 [THERMAL_GENL_ATTR_TZ_TRIP_ID] = { .type = NLA_U32 }, 28 [THERMAL_GENL_ATTR_TZ_TRIP_TEMP] = { .type = NLA_U32 }, 29 [THERMAL_GENL_ATTR_TZ_TRIP_TYPE] = { .type = NLA_U32 }, 30 [THERMAL_GENL_ATTR_TZ_TRIP_HYST] = { .type = NLA_U32 }, 31 [THERMAL_GENL_ATTR_TZ_MODE] = { .type = NLA_U32 }, 32 [THERMAL_GENL_ATTR_TZ_CDEV_WEIGHT] = { .type = NLA_U32 }, 33 [THERMAL_GENL_ATTR_TZ_NAME] = { .type = NLA_STRING, 34 .len = THERMAL_NAME_LENGTH }, 35 /* Governor(s) */ 36 [THERMAL_GENL_ATTR_TZ_GOV] = { .type = NLA_NESTED }, 37 [THERMAL_GENL_ATTR_TZ_GOV_NAME] = { .type = NLA_STRING, 38 .len = THERMAL_NAME_LENGTH }, 39 /* Cooling devices */ 40 [THERMAL_GENL_ATTR_CDEV] = { .type = NLA_NESTED }, 41 [THERMAL_GENL_ATTR_CDEV_ID] = { .type = NLA_U32 }, 42 [THERMAL_GENL_ATTR_CDEV_CUR_STATE] = { .type = NLA_U32 }, 43 [THERMAL_GENL_ATTR_CDEV_MAX_STATE] = { .type = NLA_U32 }, 44 [THERMAL_GENL_ATTR_CDEV_NAME] = { .type = NLA_STRING, 45 .len = THERMAL_NAME_LENGTH }, 46 }; 47 48 struct param { 49 struct nlattr **attrs; 50 struct sk_buff *msg; 51 const char *name; 52 int tz_id; 53 int cdev_id; 54 int trip_id; 55 int trip_temp; 56 int trip_type; 57 int trip_hyst; 58 int temp; 59 int cdev_state; 60 int cdev_max_state; 61 }; 62 63 typedef int (*cb_t)(struct param *); 64 65 static struct genl_family thermal_gnl_family; 66 67 /************************** Sampling encoding *******************************/ 68 69 int thermal_genl_sampling_temp(int id, int temp) 70 { 71 struct sk_buff *skb; 72 void *hdr; 73 74 skb = genlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); 75 if (!skb) 76 return -ENOMEM; 77 78 hdr = genlmsg_put(skb, 0, 0, &thermal_gnl_family, 0, 79 THERMAL_GENL_SAMPLING_TEMP); 80 if (!hdr) 81 goto out_free; 82 83 if (nla_put_u32(skb, THERMAL_GENL_ATTR_TZ_ID, id)) 84 goto out_cancel; 85 86 if (nla_put_u32(skb, THERMAL_GENL_ATTR_TZ_TEMP, temp)) 87 goto out_cancel; 88 89 genlmsg_end(skb, hdr); 90 91 genlmsg_multicast(&thermal_gnl_family, skb, 0, 0, GFP_KERNEL); 92 93 return 0; 94 out_cancel: 95 genlmsg_cancel(skb, hdr); 96 out_free: 97 nlmsg_free(skb); 98 99 return -EMSGSIZE; 100 } 101 102 /**************************** Event encoding *********************************/ 103 104 static int thermal_genl_event_tz_create(struct param *p) 105 { 106 if (nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_ID, p->tz_id) || 107 nla_put_string(p->msg, THERMAL_GENL_ATTR_TZ_NAME, p->name)) 108 return -EMSGSIZE; 109 110 return 0; 111 } 112 113 static int thermal_genl_event_tz(struct param *p) 114 { 115 if (nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_ID, p->tz_id)) 116 return -EMSGSIZE; 117 118 return 0; 119 } 120 121 static int thermal_genl_event_tz_trip_up(struct param *p) 122 { 123 if (nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_ID, p->tz_id) || 124 nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_TRIP_ID, p->trip_id) || 125 nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_TEMP, p->temp)) 126 return -EMSGSIZE; 127 128 return 0; 129 } 130 131 static int thermal_genl_event_tz_trip_add(struct param *p) 132 { 133 if (nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_ID, p->tz_id) || 134 nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_TRIP_ID, p->trip_id) || 135 nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_TRIP_TYPE, p->trip_type) || 136 nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_TRIP_TEMP, p->trip_temp) || 137 nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_TRIP_HYST, p->trip_hyst)) 138 return -EMSGSIZE; 139 140 return 0; 141 } 142 143 static int thermal_genl_event_tz_trip_delete(struct param *p) 144 { 145 if (nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_ID, p->tz_id) || 146 nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_TRIP_ID, p->trip_id)) 147 return -EMSGSIZE; 148 149 return 0; 150 } 151 152 static int thermal_genl_event_cdev_add(struct param *p) 153 { 154 if (nla_put_string(p->msg, THERMAL_GENL_ATTR_CDEV_NAME, 155 p->name) || 156 nla_put_u32(p->msg, THERMAL_GENL_ATTR_CDEV_ID, 157 p->cdev_id) || 158 nla_put_u32(p->msg, THERMAL_GENL_ATTR_CDEV_MAX_STATE, 159 p->cdev_max_state)) 160 return -EMSGSIZE; 161 162 return 0; 163 } 164 165 static int thermal_genl_event_cdev_delete(struct param *p) 166 { 167 if (nla_put_u32(p->msg, THERMAL_GENL_ATTR_CDEV_ID, p->cdev_id)) 168 return -EMSGSIZE; 169 170 return 0; 171 } 172 173 static int thermal_genl_event_cdev_state_update(struct param *p) 174 { 175 if (nla_put_u32(p->msg, THERMAL_GENL_ATTR_CDEV_ID, 176 p->cdev_id) || 177 nla_put_u32(p->msg, THERMAL_GENL_ATTR_CDEV_CUR_STATE, 178 p->cdev_state)) 179 return -EMSGSIZE; 180 181 return 0; 182 } 183 184 static int thermal_genl_event_gov_change(struct param *p) 185 { 186 if (nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_ID, p->tz_id) || 187 nla_put_string(p->msg, THERMAL_GENL_ATTR_GOV_NAME, p->name)) 188 return -EMSGSIZE; 189 190 return 0; 191 } 192 193 int thermal_genl_event_tz_delete(struct param *p) 194 __attribute__((alias("thermal_genl_event_tz"))); 195 196 int thermal_genl_event_tz_enable(struct param *p) 197 __attribute__((alias("thermal_genl_event_tz"))); 198 199 int thermal_genl_event_tz_disable(struct param *p) 200 __attribute__((alias("thermal_genl_event_tz"))); 201 202 int thermal_genl_event_tz_trip_down(struct param *p) 203 __attribute__((alias("thermal_genl_event_tz_trip_up"))); 204 205 int thermal_genl_event_tz_trip_change(struct param *p) 206 __attribute__((alias("thermal_genl_event_tz_trip_add"))); 207 208 static cb_t event_cb[] = { 209 [THERMAL_GENL_EVENT_TZ_CREATE] = thermal_genl_event_tz_create, 210 [THERMAL_GENL_EVENT_TZ_DELETE] = thermal_genl_event_tz_delete, 211 [THERMAL_GENL_EVENT_TZ_ENABLE] = thermal_genl_event_tz_enable, 212 [THERMAL_GENL_EVENT_TZ_DISABLE] = thermal_genl_event_tz_disable, 213 [THERMAL_GENL_EVENT_TZ_TRIP_UP] = thermal_genl_event_tz_trip_up, 214 [THERMAL_GENL_EVENT_TZ_TRIP_DOWN] = thermal_genl_event_tz_trip_down, 215 [THERMAL_GENL_EVENT_TZ_TRIP_CHANGE] = thermal_genl_event_tz_trip_change, 216 [THERMAL_GENL_EVENT_TZ_TRIP_ADD] = thermal_genl_event_tz_trip_add, 217 [THERMAL_GENL_EVENT_TZ_TRIP_DELETE] = thermal_genl_event_tz_trip_delete, 218 [THERMAL_GENL_EVENT_CDEV_ADD] = thermal_genl_event_cdev_add, 219 [THERMAL_GENL_EVENT_CDEV_DELETE] = thermal_genl_event_cdev_delete, 220 [THERMAL_GENL_EVENT_CDEV_STATE_UPDATE] = thermal_genl_event_cdev_state_update, 221 [THERMAL_GENL_EVENT_TZ_GOV_CHANGE] = thermal_genl_event_gov_change, 222 }; 223 224 /* 225 * Generic netlink event encoding 226 */ 227 static int thermal_genl_send_event(enum thermal_genl_event event, 228 struct param *p) 229 { 230 struct sk_buff *msg; 231 int ret = -EMSGSIZE; 232 void *hdr; 233 234 msg = genlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); 235 if (!msg) 236 return -ENOMEM; 237 p->msg = msg; 238 239 hdr = genlmsg_put(msg, 0, 0, &thermal_gnl_family, 0, event); 240 if (!hdr) 241 goto out_free_msg; 242 243 ret = event_cb[event](p); 244 if (ret) 245 goto out_cancel_msg; 246 247 genlmsg_end(msg, hdr); 248 249 genlmsg_multicast(&thermal_gnl_family, msg, 0, 1, GFP_KERNEL); 250 251 return 0; 252 253 out_cancel_msg: 254 genlmsg_cancel(msg, hdr); 255 out_free_msg: 256 nlmsg_free(msg); 257 258 return ret; 259 } 260 261 int thermal_notify_tz_create(int tz_id, const char *name) 262 { 263 struct param p = { .tz_id = tz_id, .name = name }; 264 265 return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_CREATE, &p); 266 } 267 268 int thermal_notify_tz_delete(int tz_id) 269 { 270 struct param p = { .tz_id = tz_id }; 271 272 return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_DELETE, &p); 273 } 274 275 int thermal_notify_tz_enable(int tz_id) 276 { 277 struct param p = { .tz_id = tz_id }; 278 279 return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_ENABLE, &p); 280 } 281 282 int thermal_notify_tz_disable(int tz_id) 283 { 284 struct param p = { .tz_id = tz_id }; 285 286 return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_DISABLE, &p); 287 } 288 289 int thermal_notify_tz_trip_down(int tz_id, int trip_id, int temp) 290 { 291 struct param p = { .tz_id = tz_id, .trip_id = trip_id, .temp = temp }; 292 293 return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_TRIP_DOWN, &p); 294 } 295 296 int thermal_notify_tz_trip_up(int tz_id, int trip_id, int temp) 297 { 298 struct param p = { .tz_id = tz_id, .trip_id = trip_id, .temp = temp }; 299 300 return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_TRIP_UP, &p); 301 } 302 303 int thermal_notify_tz_trip_add(int tz_id, int trip_id, int trip_type, 304 int trip_temp, int trip_hyst) 305 { 306 struct param p = { .tz_id = tz_id, .trip_id = trip_id, 307 .trip_type = trip_type, .trip_temp = trip_temp, 308 .trip_hyst = trip_hyst }; 309 310 return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_TRIP_ADD, &p); 311 } 312 313 int thermal_notify_tz_trip_delete(int tz_id, int trip_id) 314 { 315 struct param p = { .tz_id = tz_id, .trip_id = trip_id }; 316 317 return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_TRIP_DELETE, &p); 318 } 319 320 int thermal_notify_tz_trip_change(int tz_id, int trip_id, int trip_type, 321 int trip_temp, int trip_hyst) 322 { 323 struct param p = { .tz_id = tz_id, .trip_id = trip_id, 324 .trip_type = trip_type, .trip_temp = trip_temp, 325 .trip_hyst = trip_hyst }; 326 327 return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_TRIP_CHANGE, &p); 328 } 329 330 int thermal_notify_cdev_state_update(int cdev_id, int cdev_state) 331 { 332 struct param p = { .cdev_id = cdev_id, .cdev_state = cdev_state }; 333 334 return thermal_genl_send_event(THERMAL_GENL_EVENT_CDEV_STATE_UPDATE, &p); 335 } 336 337 int thermal_notify_cdev_add(int cdev_id, const char *name, int cdev_max_state) 338 { 339 struct param p = { .cdev_id = cdev_id, .name = name, 340 .cdev_max_state = cdev_max_state }; 341 342 return thermal_genl_send_event(THERMAL_GENL_EVENT_CDEV_ADD, &p); 343 } 344 345 int thermal_notify_cdev_delete(int cdev_id) 346 { 347 struct param p = { .cdev_id = cdev_id }; 348 349 return thermal_genl_send_event(THERMAL_GENL_EVENT_CDEV_DELETE, &p); 350 } 351 352 int thermal_notify_tz_gov_change(int tz_id, const char *name) 353 { 354 struct param p = { .tz_id = tz_id, .name = name }; 355 356 return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_GOV_CHANGE, &p); 357 } 358 359 /*************************** Command encoding ********************************/ 360 361 static int __thermal_genl_cmd_tz_get_id(struct thermal_zone_device *tz, 362 void *data) 363 { 364 struct sk_buff *msg = data; 365 366 if (nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_ID, tz->id) || 367 nla_put_string(msg, THERMAL_GENL_ATTR_TZ_NAME, tz->type)) 368 return -EMSGSIZE; 369 370 return 0; 371 } 372 373 static int thermal_genl_cmd_tz_get_id(struct param *p) 374 { 375 struct sk_buff *msg = p->msg; 376 struct nlattr *start_tz; 377 int ret; 378 379 start_tz = nla_nest_start(msg, THERMAL_GENL_ATTR_TZ); 380 if (!start_tz) 381 return -EMSGSIZE; 382 383 ret = for_each_thermal_zone(__thermal_genl_cmd_tz_get_id, msg); 384 if (ret) 385 goto out_cancel_nest; 386 387 nla_nest_end(msg, start_tz); 388 389 return 0; 390 391 out_cancel_nest: 392 nla_nest_cancel(msg, start_tz); 393 394 return ret; 395 } 396 397 static int thermal_genl_cmd_tz_get_trip(struct param *p) 398 { 399 struct sk_buff *msg = p->msg; 400 struct thermal_zone_device *tz; 401 struct nlattr *start_trip; 402 int i, id; 403 404 if (!p->attrs[THERMAL_GENL_ATTR_TZ_ID]) 405 return -EINVAL; 406 407 id = nla_get_u32(p->attrs[THERMAL_GENL_ATTR_TZ_ID]); 408 409 tz = thermal_zone_get_by_id(id); 410 if (!tz) 411 return -EINVAL; 412 413 start_trip = nla_nest_start(msg, THERMAL_GENL_ATTR_TZ_TRIP); 414 if (!start_trip) 415 return -EMSGSIZE; 416 417 mutex_lock(&tz->lock); 418 419 for (i = 0; i < tz->trips; i++) { 420 421 enum thermal_trip_type type; 422 int temp, hyst; 423 424 tz->ops->get_trip_type(tz, i, &type); 425 tz->ops->get_trip_temp(tz, i, &temp); 426 tz->ops->get_trip_hyst(tz, i, &hyst); 427 428 if (nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_ID, i) || 429 nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_TYPE, type) || 430 nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_TEMP, temp) || 431 nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_HYST, hyst)) 432 goto out_cancel_nest; 433 } 434 435 mutex_unlock(&tz->lock); 436 437 nla_nest_end(msg, start_trip); 438 439 return 0; 440 441 out_cancel_nest: 442 mutex_unlock(&tz->lock); 443 444 return -EMSGSIZE; 445 } 446 447 static int thermal_genl_cmd_tz_get_temp(struct param *p) 448 { 449 struct sk_buff *msg = p->msg; 450 struct thermal_zone_device *tz; 451 int temp, ret, id; 452 453 if (!p->attrs[THERMAL_GENL_ATTR_TZ_ID]) 454 return -EINVAL; 455 456 id = nla_get_u32(p->attrs[THERMAL_GENL_ATTR_TZ_ID]); 457 458 tz = thermal_zone_get_by_id(id); 459 if (!tz) 460 return -EINVAL; 461 462 ret = thermal_zone_get_temp(tz, &temp); 463 if (ret) 464 return ret; 465 466 if (nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_ID, id) || 467 nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TEMP, temp)) 468 return -EMSGSIZE; 469 470 return 0; 471 } 472 473 static int thermal_genl_cmd_tz_get_gov(struct param *p) 474 { 475 struct sk_buff *msg = p->msg; 476 struct thermal_zone_device *tz; 477 int id, ret = 0; 478 479 if (!p->attrs[THERMAL_GENL_ATTR_TZ_ID]) 480 return -EINVAL; 481 482 id = nla_get_u32(p->attrs[THERMAL_GENL_ATTR_TZ_ID]); 483 484 tz = thermal_zone_get_by_id(id); 485 if (!tz) 486 return -EINVAL; 487 488 mutex_lock(&tz->lock); 489 490 if (nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_ID, id) || 491 nla_put_string(msg, THERMAL_GENL_ATTR_TZ_GOV_NAME, 492 tz->governor->name)) 493 ret = -EMSGSIZE; 494 495 mutex_unlock(&tz->lock); 496 497 return ret; 498 } 499 500 static int __thermal_genl_cmd_cdev_get(struct thermal_cooling_device *cdev, 501 void *data) 502 { 503 struct sk_buff *msg = data; 504 505 if (nla_put_u32(msg, THERMAL_GENL_ATTR_CDEV_ID, cdev->id)) 506 return -EMSGSIZE; 507 508 if (nla_put_string(msg, THERMAL_GENL_ATTR_CDEV_NAME, cdev->type)) 509 return -EMSGSIZE; 510 511 return 0; 512 } 513 514 static int thermal_genl_cmd_cdev_get(struct param *p) 515 { 516 struct sk_buff *msg = p->msg; 517 struct nlattr *start_cdev; 518 int ret; 519 520 start_cdev = nla_nest_start(msg, THERMAL_GENL_ATTR_CDEV); 521 if (!start_cdev) 522 return -EMSGSIZE; 523 524 ret = for_each_thermal_cooling_device(__thermal_genl_cmd_cdev_get, msg); 525 if (ret) 526 goto out_cancel_nest; 527 528 nla_nest_end(msg, start_cdev); 529 530 return 0; 531 out_cancel_nest: 532 nla_nest_cancel(msg, start_cdev); 533 534 return ret; 535 } 536 537 static cb_t cmd_cb[] = { 538 [THERMAL_GENL_CMD_TZ_GET_ID] = thermal_genl_cmd_tz_get_id, 539 [THERMAL_GENL_CMD_TZ_GET_TRIP] = thermal_genl_cmd_tz_get_trip, 540 [THERMAL_GENL_CMD_TZ_GET_TEMP] = thermal_genl_cmd_tz_get_temp, 541 [THERMAL_GENL_CMD_TZ_GET_GOV] = thermal_genl_cmd_tz_get_gov, 542 [THERMAL_GENL_CMD_CDEV_GET] = thermal_genl_cmd_cdev_get, 543 }; 544 545 static int thermal_genl_cmd_dumpit(struct sk_buff *skb, 546 struct netlink_callback *cb) 547 { 548 struct param p = { .msg = skb }; 549 const struct genl_dumpit_info *info = genl_dumpit_info(cb); 550 int cmd = info->op.cmd; 551 int ret; 552 void *hdr; 553 554 hdr = genlmsg_put(skb, 0, 0, &thermal_gnl_family, 0, cmd); 555 if (!hdr) 556 return -EMSGSIZE; 557 558 ret = cmd_cb[cmd](&p); 559 if (ret) 560 goto out_cancel_msg; 561 562 genlmsg_end(skb, hdr); 563 564 return 0; 565 566 out_cancel_msg: 567 genlmsg_cancel(skb, hdr); 568 569 return ret; 570 } 571 572 static int thermal_genl_cmd_doit(struct sk_buff *skb, 573 struct genl_info *info) 574 { 575 struct param p = { .attrs = info->attrs }; 576 struct sk_buff *msg; 577 void *hdr; 578 int cmd = info->genlhdr->cmd; 579 int ret = -EMSGSIZE; 580 581 msg = genlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); 582 if (!msg) 583 return -ENOMEM; 584 p.msg = msg; 585 586 hdr = genlmsg_put_reply(msg, info, &thermal_gnl_family, 0, cmd); 587 if (!hdr) 588 goto out_free_msg; 589 590 ret = cmd_cb[cmd](&p); 591 if (ret) 592 goto out_cancel_msg; 593 594 genlmsg_end(msg, hdr); 595 596 return genlmsg_reply(msg, info); 597 598 out_cancel_msg: 599 genlmsg_cancel(msg, hdr); 600 out_free_msg: 601 nlmsg_free(msg); 602 603 return ret; 604 } 605 606 static const struct genl_small_ops thermal_genl_ops[] = { 607 { 608 .cmd = THERMAL_GENL_CMD_TZ_GET_ID, 609 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 610 .dumpit = thermal_genl_cmd_dumpit, 611 }, 612 { 613 .cmd = THERMAL_GENL_CMD_TZ_GET_TRIP, 614 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 615 .doit = thermal_genl_cmd_doit, 616 }, 617 { 618 .cmd = THERMAL_GENL_CMD_TZ_GET_TEMP, 619 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 620 .doit = thermal_genl_cmd_doit, 621 }, 622 { 623 .cmd = THERMAL_GENL_CMD_TZ_GET_GOV, 624 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 625 .doit = thermal_genl_cmd_doit, 626 }, 627 { 628 .cmd = THERMAL_GENL_CMD_CDEV_GET, 629 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, 630 .dumpit = thermal_genl_cmd_dumpit, 631 }, 632 }; 633 634 static struct genl_family thermal_gnl_family __ro_after_init = { 635 .hdrsize = 0, 636 .name = THERMAL_GENL_FAMILY_NAME, 637 .version = THERMAL_GENL_VERSION, 638 .maxattr = THERMAL_GENL_ATTR_MAX, 639 .policy = thermal_genl_policy, 640 .small_ops = thermal_genl_ops, 641 .n_small_ops = ARRAY_SIZE(thermal_genl_ops), 642 .mcgrps = thermal_genl_mcgrps, 643 .n_mcgrps = ARRAY_SIZE(thermal_genl_mcgrps), 644 }; 645 646 int __init thermal_netlink_init(void) 647 { 648 return genl_register_family(&thermal_gnl_family); 649 } 650