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 16static const struct genl_multicast_group thermal_genl_mcgrps[] = { 17 { .name = THERMAL_GENL_SAMPLING_GROUP_NAME, }, 18 { .name = THERMAL_GENL_EVENT_GROUP_NAME, }, 19}; 20 21static 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 48struct 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 63typedef int (*cb_t)(struct param *); 64 65static struct genl_family thermal_gnl_family; 66 67/************************** Sampling encoding *******************************/ 68 69int 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; 94out_cancel: 95 genlmsg_cancel(skb, hdr); 96out_free: 97 nlmsg_free(skb); 98 99 return -EMSGSIZE; 100} 101 102/**************************** Event encoding *********************************/ 103 104static 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 113static 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 121static 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 return -EMSGSIZE; 126 127 return 0; 128} 129 130static int thermal_genl_event_tz_trip_add(struct param *p) 131{ 132 if (nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_ID, p->tz_id) || 133 nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_TRIP_ID, p->trip_id) || 134 nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_TRIP_TYPE, p->trip_type) || 135 nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_TRIP_TEMP, p->trip_temp) || 136 nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_TRIP_HYST, p->trip_hyst)) 137 return -EMSGSIZE; 138 139 return 0; 140} 141 142static int thermal_genl_event_tz_trip_delete(struct param *p) 143{ 144 if (nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_ID, p->tz_id) || 145 nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_TRIP_ID, p->trip_id)) 146 return -EMSGSIZE; 147 148 return 0; 149} 150 151static int thermal_genl_event_cdev_add(struct param *p) 152{ 153 if (nla_put_string(p->msg, THERMAL_GENL_ATTR_CDEV_NAME, 154 p->name) || 155 nla_put_u32(p->msg, THERMAL_GENL_ATTR_CDEV_ID, 156 p->cdev_id) || 157 nla_put_u32(p->msg, THERMAL_GENL_ATTR_CDEV_MAX_STATE, 158 p->cdev_max_state)) 159 return -EMSGSIZE; 160 161 return 0; 162} 163 164static int thermal_genl_event_cdev_delete(struct param *p) 165{ 166 if (nla_put_u32(p->msg, THERMAL_GENL_ATTR_CDEV_ID, p->cdev_id)) 167 return -EMSGSIZE; 168 169 return 0; 170} 171 172static int thermal_genl_event_cdev_state_update(struct param *p) 173{ 174 if (nla_put_u32(p->msg, THERMAL_GENL_ATTR_CDEV_ID, 175 p->cdev_id) || 176 nla_put_u32(p->msg, THERMAL_GENL_ATTR_CDEV_CUR_STATE, 177 p->cdev_state)) 178 return -EMSGSIZE; 179 180 return 0; 181} 182 183static int thermal_genl_event_gov_change(struct param *p) 184{ 185 if (nla_put_u32(p->msg, THERMAL_GENL_ATTR_TZ_ID, p->tz_id) || 186 nla_put_string(p->msg, THERMAL_GENL_ATTR_GOV_NAME, p->name)) 187 return -EMSGSIZE; 188 189 return 0; 190} 191 192int thermal_genl_event_tz_delete(struct param *p) 193 __attribute__((alias("thermal_genl_event_tz"))); 194 195int thermal_genl_event_tz_enable(struct param *p) 196 __attribute__((alias("thermal_genl_event_tz"))); 197 198int thermal_genl_event_tz_disable(struct param *p) 199 __attribute__((alias("thermal_genl_event_tz"))); 200 201int thermal_genl_event_tz_trip_down(struct param *p) 202 __attribute__((alias("thermal_genl_event_tz_trip_up"))); 203 204int thermal_genl_event_tz_trip_change(struct param *p) 205 __attribute__((alias("thermal_genl_event_tz_trip_add"))); 206 207static cb_t event_cb[] = { 208 [THERMAL_GENL_EVENT_TZ_CREATE] = thermal_genl_event_tz_create, 209 [THERMAL_GENL_EVENT_TZ_DELETE] = thermal_genl_event_tz_delete, 210 [THERMAL_GENL_EVENT_TZ_ENABLE] = thermal_genl_event_tz_enable, 211 [THERMAL_GENL_EVENT_TZ_DISABLE] = thermal_genl_event_tz_disable, 212 [THERMAL_GENL_EVENT_TZ_TRIP_UP] = thermal_genl_event_tz_trip_up, 213 [THERMAL_GENL_EVENT_TZ_TRIP_DOWN] = thermal_genl_event_tz_trip_down, 214 [THERMAL_GENL_EVENT_TZ_TRIP_CHANGE] = thermal_genl_event_tz_trip_change, 215 [THERMAL_GENL_EVENT_TZ_TRIP_ADD] = thermal_genl_event_tz_trip_add, 216 [THERMAL_GENL_EVENT_TZ_TRIP_DELETE] = thermal_genl_event_tz_trip_delete, 217 [THERMAL_GENL_EVENT_CDEV_ADD] = thermal_genl_event_cdev_add, 218 [THERMAL_GENL_EVENT_CDEV_DELETE] = thermal_genl_event_cdev_delete, 219 [THERMAL_GENL_EVENT_CDEV_STATE_UPDATE] = thermal_genl_event_cdev_state_update, 220 [THERMAL_GENL_EVENT_TZ_GOV_CHANGE] = thermal_genl_event_gov_change, 221}; 222 223/* 224 * Generic netlink event encoding 225 */ 226static int thermal_genl_send_event(enum thermal_genl_event event, 227 struct param *p) 228{ 229 struct sk_buff *msg; 230 int ret = -EMSGSIZE; 231 void *hdr; 232 233 msg = genlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); 234 if (!msg) 235 return -ENOMEM; 236 p->msg = msg; 237 238 hdr = genlmsg_put(msg, 0, 0, &thermal_gnl_family, 0, event); 239 if (!hdr) 240 goto out_free_msg; 241 242 ret = event_cb[event](p); 243 if (ret) 244 goto out_cancel_msg; 245 246 genlmsg_end(msg, hdr); 247 248 genlmsg_multicast(&thermal_gnl_family, msg, 0, 1, GFP_KERNEL); 249 250 return 0; 251 252out_cancel_msg: 253 genlmsg_cancel(msg, hdr); 254out_free_msg: 255 nlmsg_free(msg); 256 257 return ret; 258} 259 260int thermal_notify_tz_create(int tz_id, const char *name) 261{ 262 struct param p = { .tz_id = tz_id, .name = name }; 263 264 return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_CREATE, &p); 265} 266 267int thermal_notify_tz_delete(int tz_id) 268{ 269 struct param p = { .tz_id = tz_id }; 270 271 return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_DELETE, &p); 272} 273 274int thermal_notify_tz_enable(int tz_id) 275{ 276 struct param p = { .tz_id = tz_id }; 277 278 return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_ENABLE, &p); 279} 280 281int thermal_notify_tz_disable(int tz_id) 282{ 283 struct param p = { .tz_id = tz_id }; 284 285 return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_DISABLE, &p); 286} 287 288int thermal_notify_tz_trip_down(int tz_id, int trip_id) 289{ 290 struct param p = { .tz_id = tz_id, .trip_id = trip_id }; 291 292 return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_TRIP_DOWN, &p); 293} 294 295int thermal_notify_tz_trip_up(int tz_id, int trip_id) 296{ 297 struct param p = { .tz_id = tz_id, .trip_id = trip_id }; 298 299 return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_TRIP_UP, &p); 300} 301 302int thermal_notify_tz_trip_add(int tz_id, int trip_id, int trip_type, 303 int trip_temp, int trip_hyst) 304{ 305 struct param p = { .tz_id = tz_id, .trip_id = trip_id, 306 .trip_type = trip_type, .trip_temp = trip_temp, 307 .trip_hyst = trip_hyst }; 308 309 return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_TRIP_ADD, &p); 310} 311 312int thermal_notify_tz_trip_delete(int tz_id, int trip_id) 313{ 314 struct param p = { .tz_id = tz_id, .trip_id = trip_id }; 315 316 return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_TRIP_DELETE, &p); 317} 318 319int thermal_notify_tz_trip_change(int tz_id, int trip_id, int trip_type, 320 int trip_temp, int trip_hyst) 321{ 322 struct param p = { .tz_id = tz_id, .trip_id = trip_id, 323 .trip_type = trip_type, .trip_temp = trip_temp, 324 .trip_hyst = trip_hyst }; 325 326 return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_TRIP_CHANGE, &p); 327} 328 329int thermal_notify_cdev_state_update(int cdev_id, int cdev_state) 330{ 331 struct param p = { .cdev_id = cdev_id, .cdev_state = cdev_state }; 332 333 return thermal_genl_send_event(THERMAL_GENL_EVENT_CDEV_STATE_UPDATE, &p); 334} 335 336int thermal_notify_cdev_add(int cdev_id, const char *name, int cdev_max_state) 337{ 338 struct param p = { .cdev_id = cdev_id, .name = name, 339 .cdev_max_state = cdev_max_state }; 340 341 return thermal_genl_send_event(THERMAL_GENL_EVENT_CDEV_ADD, &p); 342} 343 344int thermal_notify_cdev_delete(int cdev_id) 345{ 346 struct param p = { .cdev_id = cdev_id }; 347 348 return thermal_genl_send_event(THERMAL_GENL_EVENT_CDEV_DELETE, &p); 349} 350 351int thermal_notify_tz_gov_change(int tz_id, const char *name) 352{ 353 struct param p = { .tz_id = tz_id, .name = name }; 354 355 return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_GOV_CHANGE, &p); 356} 357 358/*************************** Command encoding ********************************/ 359 360static int __thermal_genl_cmd_tz_get_id(struct thermal_zone_device *tz, 361 void *data) 362{ 363 struct sk_buff *msg = data; 364 365 if (nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_ID, tz->id) || 366 nla_put_string(msg, THERMAL_GENL_ATTR_TZ_NAME, tz->type)) 367 return -EMSGSIZE; 368 369 return 0; 370} 371 372static int thermal_genl_cmd_tz_get_id(struct param *p) 373{ 374 struct sk_buff *msg = p->msg; 375 struct nlattr *start_tz; 376 int ret; 377 378 start_tz = nla_nest_start(msg, THERMAL_GENL_ATTR_TZ); 379 if (!start_tz) 380 return -EMSGSIZE; 381 382 ret = for_each_thermal_zone(__thermal_genl_cmd_tz_get_id, msg); 383 if (ret) 384 goto out_cancel_nest; 385 386 nla_nest_end(msg, start_tz); 387 388 return 0; 389 390out_cancel_nest: 391 nla_nest_cancel(msg, start_tz); 392 393 return ret; 394} 395 396static int thermal_genl_cmd_tz_get_trip(struct param *p) 397{ 398 struct sk_buff *msg = p->msg; 399 struct thermal_zone_device *tz; 400 struct nlattr *start_trip; 401 int i, id; 402 403 if (!p->attrs[THERMAL_GENL_ATTR_TZ_ID]) 404 return -EINVAL; 405 406 id = nla_get_u32(p->attrs[THERMAL_GENL_ATTR_TZ_ID]); 407 408 tz = thermal_zone_get_by_id(id); 409 if (!tz) 410 return -EINVAL; 411 412 start_trip = nla_nest_start(msg, THERMAL_GENL_ATTR_TZ_TRIP); 413 if (!start_trip) 414 return -EMSGSIZE; 415 416 mutex_lock(&tz->lock); 417 418 for (i = 0; i < tz->trips; i++) { 419 420 enum thermal_trip_type type; 421 int temp, hyst = 0; 422 423 tz->ops->get_trip_type(tz, i, &type); 424 tz->ops->get_trip_temp(tz, i, &temp); 425 if (tz->ops->get_trip_hyst) 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 441out_cancel_nest: 442 mutex_unlock(&tz->lock); 443 444 return -EMSGSIZE; 445} 446 447static 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 473static 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 500static 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 514static 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; 531out_cancel_nest: 532 nla_nest_cancel(msg, start_cdev); 533 534 return ret; 535} 536 537static 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 545static 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 566out_cancel_msg: 567 genlmsg_cancel(skb, hdr); 568 569 return ret; 570} 571 572static 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 598out_cancel_msg: 599 genlmsg_cancel(msg, hdr); 600out_free_msg: 601 nlmsg_free(msg); 602 603 return ret; 604} 605 606static 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 634static 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 646int __init thermal_netlink_init(void) 647{ 648 return genl_register_family(&thermal_gnl_family); 649} 650