1 /*- 2 * Copyright (c) 2010 Isilon Systems, Inc. 3 * Copyright (c) 2010 iX Systems, Inc. 4 * Copyright (c) 2010 Panasas, Inc. 5 * Copyright (c) 2013-2016 Mellanox Technologies, Ltd. 6 * All rights reserved. 7 * Copyright (c) 2021-2025 The FreeBSD Foundation 8 * 9 * Portions of this software were developed by Björn Zeeb 10 * under sponsorship from the FreeBSD Foundation. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice unmodified, this list of conditions, and the following 17 * disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 #ifndef _LINUXKPI_LINUX_DEVICE_H_ 34 #define _LINUXKPI_LINUX_DEVICE_H_ 35 36 #include <linux/err.h> 37 #include <linux/types.h> 38 #include <linux/kobject.h> 39 #include <linux/sysfs.h> 40 #include <linux/list.h> 41 #include <linux/compiler.h> 42 #include <linux/module.h> 43 #include <linux/workqueue.h> 44 #include <linux/kdev_t.h> 45 #include <linux/backlight.h> 46 #include <linux/pm.h> 47 #include <linux/idr.h> 48 #include <linux/overflow.h> 49 #include <linux/ratelimit.h> /* via linux/dev_printk.h */ 50 #include <linux/fwnode.h> 51 #include <asm/atomic.h> 52 53 #include <sys/bus.h> 54 #include <sys/backlight.h> 55 56 struct device; 57 58 struct class { 59 const char *name; 60 struct kobject kobj; 61 devclass_t bsdclass; 62 const struct dev_pm_ops *pm; 63 const struct attribute_group **dev_groups; 64 void (*class_release)(struct class *class); 65 void (*dev_release)(struct device *dev); 66 char * (*devnode)(struct device *dev, umode_t *mode); 67 }; 68 69 struct dev_pm_ops { 70 int (*prepare)(struct device *dev); 71 void (*complete)(struct device *dev); 72 int (*suspend)(struct device *dev); 73 int (*suspend_late)(struct device *dev); 74 int (*resume)(struct device *dev); 75 int (*resume_early)(struct device *dev); 76 int (*freeze)(struct device *dev); 77 int (*freeze_late)(struct device *dev); 78 int (*thaw)(struct device *dev); 79 int (*thaw_early)(struct device *dev); 80 int (*poweroff)(struct device *dev); 81 int (*poweroff_late)(struct device *dev); 82 int (*restore)(struct device *dev); 83 int (*restore_early)(struct device *dev); 84 int (*suspend_noirq)(struct device *dev); 85 int (*runtime_suspend)(struct device *dev); 86 int (*runtime_resume)(struct device *dev); 87 int (*runtime_idle)(struct device *dev); 88 }; 89 90 struct device_driver { 91 const char *name; 92 const struct dev_pm_ops *pm; 93 94 void (*shutdown) (struct device *); 95 }; 96 97 struct device_type { 98 const char *name; 99 }; 100 101 struct device { 102 struct device *parent; 103 struct list_head irqents; 104 device_t bsddev; 105 /* 106 * The following flag is used to determine if the LinuxKPI is 107 * responsible for detaching the BSD device or not. If the 108 * LinuxKPI got the BSD device using devclass_get_device(), it 109 * must not try to detach or delete it, because it's already 110 * done somewhere else. 111 */ 112 bool bsddev_attached_here; 113 struct device_driver *driver; 114 struct device_type *type; 115 dev_t devt; 116 struct class *class; 117 void (*release)(struct device *dev); 118 struct kobject kobj; 119 void *dma_priv; 120 void *driver_data; 121 unsigned int irq; 122 #define LINUX_IRQ_INVALID 65535 123 unsigned int irq_start; 124 unsigned int irq_end; 125 const struct attribute_group **groups; 126 struct fwnode_handle *fwnode; 127 struct cdev *backlight_dev; 128 struct backlight_device *bd; 129 130 spinlock_t devres_lock; 131 struct list_head devres_head; 132 133 struct dev_pm_info power; 134 }; 135 136 extern struct device linux_root_device; 137 extern struct kobject linux_class_root; 138 extern const struct kobj_type linux_dev_ktype; 139 extern const struct kobj_type linux_class_ktype; 140 141 struct class_attribute { 142 struct attribute attr; 143 ssize_t (*show)(struct class *, struct class_attribute *, char *); 144 ssize_t (*store)(struct class *, struct class_attribute *, const char *, size_t); 145 const void *(*namespace)(struct class *, const struct class_attribute *); 146 }; 147 148 #define CLASS_ATTR(_name, _mode, _show, _store) \ 149 struct class_attribute class_attr_##_name = \ 150 { { #_name, NULL, _mode }, _show, _store } 151 152 struct device_attribute { 153 struct attribute attr; 154 ssize_t (*show)(struct device *, 155 struct device_attribute *, char *); 156 ssize_t (*store)(struct device *, 157 struct device_attribute *, const char *, 158 size_t); 159 }; 160 161 #define DEVICE_ATTR(_name, _mode, _show, _store) \ 162 struct device_attribute dev_attr_##_name = \ 163 __ATTR(_name, _mode, _show, _store) 164 #define DEVICE_ATTR_RO(_name) \ 165 struct device_attribute dev_attr_##_name = __ATTR_RO(_name) 166 #define DEVICE_ATTR_WO(_name) \ 167 struct device_attribute dev_attr_##_name = __ATTR_WO(_name) 168 #define DEVICE_ATTR_RW(_name) \ 169 struct device_attribute dev_attr_##_name = __ATTR_RW(_name) 170 171 /* Simple class attribute that is just a static string */ 172 struct class_attribute_string { 173 struct class_attribute attr; 174 char *str; 175 }; 176 177 static inline ssize_t 178 show_class_attr_string(struct class *class, 179 struct class_attribute *attr, char *buf) 180 { 181 struct class_attribute_string *cs; 182 cs = container_of(attr, struct class_attribute_string, attr); 183 return snprintf(buf, PAGE_SIZE, "%s\n", cs->str); 184 } 185 186 /* Currently read-only only */ 187 #define _CLASS_ATTR_STRING(_name, _mode, _str) \ 188 { __ATTR(_name, _mode, show_class_attr_string, NULL), _str } 189 #define CLASS_ATTR_STRING(_name, _mode, _str) \ 190 struct class_attribute_string class_attr_##_name = \ 191 _CLASS_ATTR_STRING(_name, _mode, _str) 192 193 #define dev_printk(lvl, dev, fmt, ...) \ 194 device_printf((dev)->bsddev, fmt, ##__VA_ARGS__) 195 196 #define dev_emerg(dev, fmt, ...) device_printf((dev)->bsddev, fmt, ##__VA_ARGS__) 197 #define dev_alert(dev, fmt, ...) device_printf((dev)->bsddev, fmt, ##__VA_ARGS__) 198 #define dev_crit(dev, fmt, ...) device_printf((dev)->bsddev, fmt, ##__VA_ARGS__) 199 #define dev_err(dev, fmt, ...) device_printf((dev)->bsddev, fmt, ##__VA_ARGS__) 200 #define dev_warn(dev, fmt, ...) device_printf((dev)->bsddev, fmt, ##__VA_ARGS__) 201 #define dev_notice(dev, fmt, ...) device_printf((dev)->bsddev, fmt, ##__VA_ARGS__) 202 #define dev_info(dev, fmt, ...) device_printf((dev)->bsddev, fmt, ##__VA_ARGS__) 203 #define dev_dbg(dev, fmt, ...) do { } while (0) 204 205 #define dev_WARN(dev, fmt, ...) \ 206 device_printf((dev)->bsddev, "%s:%d: " fmt, __func__, __LINE__, ##__VA_ARGS__) 207 208 #define dev_WARN_ONCE(dev, condition, fmt, ...) do { \ 209 static bool __dev_WARN_ONCE; \ 210 bool __ret_warn_on = (condition); \ 211 if (unlikely(__ret_warn_on)) { \ 212 if (!__dev_WARN_ONCE) { \ 213 __dev_WARN_ONCE = true; \ 214 device_printf((dev)->bsddev, "%s:%d: " fmt, __func__, __LINE__, ##__VA_ARGS__); \ 215 } \ 216 } \ 217 } while (0) 218 219 #define dev_info_once(dev, ...) do { \ 220 static bool __dev_info_once; \ 221 if (!__dev_info_once) { \ 222 __dev_info_once = true; \ 223 dev_info(dev, __VA_ARGS__); \ 224 } \ 225 } while (0) 226 227 #define dev_warn_once(dev, ...) do { \ 228 static bool __dev_warn_once; \ 229 if (!__dev_warn_once) { \ 230 __dev_warn_once = 1; \ 231 dev_warn(dev, __VA_ARGS__); \ 232 } \ 233 } while (0) 234 235 #define dev_err_once(dev, ...) do { \ 236 static bool __dev_err_once; \ 237 if (!__dev_err_once) { \ 238 __dev_err_once = 1; \ 239 dev_err(dev, __VA_ARGS__); \ 240 } \ 241 } while (0) 242 243 #define dev_dbg_once(dev, ...) do { \ 244 static bool __dev_dbg_once; \ 245 if (!__dev_dbg_once) { \ 246 __dev_dbg_once = 1; \ 247 dev_dbg(dev, __VA_ARGS__); \ 248 } \ 249 } while (0) 250 251 #define dev_err_ratelimited(dev, ...) do { \ 252 static linux_ratelimit_t __ratelimited; \ 253 if (linux_ratelimited(&__ratelimited)) \ 254 dev_err(dev, __VA_ARGS__); \ 255 } while (0) 256 257 #define dev_warn_ratelimited(dev, ...) do { \ 258 static linux_ratelimit_t __ratelimited; \ 259 if (linux_ratelimited(&__ratelimited)) \ 260 dev_warn(dev, __VA_ARGS__); \ 261 } while (0) 262 263 #define dev_dbg_ratelimited(dev, ...) do { \ 264 static linux_ratelimit_t __ratelimited; \ 265 if (linux_ratelimited(&__ratelimited)) \ 266 dev_dbg(dev, __VA_ARGS__); \ 267 } while (0) 268 269 /* Public and LinuxKPI internal devres functions. */ 270 void *lkpi_devres_alloc(void(*release)(struct device *, void *), size_t, gfp_t); 271 void lkpi_devres_add(struct device *, void *); 272 void lkpi_devres_free(void *); 273 void *lkpi_devres_find(struct device *, void(*release)(struct device *, void *), 274 int (*match)(struct device *, void *, void *), void *); 275 int lkpi_devres_destroy(struct device *, void(*release)(struct device *, void *), 276 int (*match)(struct device *, void *, void *), void *); 277 #define devres_alloc(_r, _s, _g) lkpi_devres_alloc(_r, _s, _g) 278 #define devres_add(_d, _p) lkpi_devres_add(_d, _p) 279 #define devres_free(_p) lkpi_devres_free(_p) 280 #define devres_find(_d, _rfn, _mfn, _mp) \ 281 lkpi_devres_find(_d, _rfn, _mfn, _mp) 282 #define devres_destroy(_d, _rfn, _mfn, _mp) \ 283 lkpi_devres_destroy(_d, _rfn, _mfn, _mp) 284 void lkpi_devres_release_free_list(struct device *); 285 void lkpi_devres_unlink(struct device *, void *); 286 void lkpi_devm_kmalloc_release(struct device *, void *); 287 void lkpi_devm_kfree(struct device *, const void *); 288 #define devm_kfree(_d, _p) lkpi_devm_kfree(_d, _p) 289 290 static inline const char * 291 dev_driver_string(const struct device *dev) 292 { 293 driver_t *drv; 294 const char *str = ""; 295 296 if (dev->bsddev != NULL) { 297 drv = device_get_driver(dev->bsddev); 298 if (drv != NULL) 299 str = drv->name; 300 } 301 302 return (str); 303 } 304 305 static inline void * 306 dev_get_drvdata(const struct device *dev) 307 { 308 309 return dev->driver_data; 310 } 311 312 static inline void 313 dev_set_drvdata(struct device *dev, void *data) 314 { 315 316 dev->driver_data = data; 317 } 318 319 static inline struct device * 320 get_device(struct device *dev) 321 { 322 323 if (dev) 324 kobject_get(&dev->kobj); 325 326 return (dev); 327 } 328 329 static inline char * 330 dev_name(const struct device *dev) 331 { 332 333 return kobject_name(&dev->kobj); 334 } 335 336 static inline bool 337 dev_is_removable(struct device *dev) 338 { 339 340 return (false); 341 } 342 343 #define dev_set_name(_dev, _fmt, ...) \ 344 kobject_set_name(&(_dev)->kobj, (_fmt), ##__VA_ARGS__) 345 346 static inline void 347 put_device(struct device *dev) 348 { 349 350 if (dev) 351 kobject_put(&dev->kobj); 352 } 353 354 struct class *lkpi_class_create(const char *name); 355 #if defined(LINUXKPI_VERSION) && LINUXKPI_VERSION >= 60400 356 #define class_create(name) lkpi_class_create(name) 357 #else 358 #define class_create(owner, name) lkpi_class_create(name) 359 #endif 360 361 static inline int 362 class_register(struct class *class) 363 { 364 365 class->bsdclass = devclass_create(class->name); 366 kobject_init(&class->kobj, &linux_class_ktype); 367 kobject_set_name(&class->kobj, class->name); 368 kobject_add(&class->kobj, &linux_class_root, class->name); 369 370 return (0); 371 } 372 373 static inline void 374 class_unregister(struct class *class) 375 { 376 377 kobject_put(&class->kobj); 378 } 379 380 static inline struct device *kobj_to_dev(struct kobject *kobj) 381 { 382 return container_of(kobj, struct device, kobj); 383 } 384 385 struct device *device_create(struct class *class, struct device *parent, 386 dev_t devt, void *drvdata, const char *fmt, ...); 387 struct device *device_create_groups_vargs(struct class *class, struct device *parent, 388 dev_t devt, void *drvdata, const struct attribute_group **groups, 389 const char *fmt, va_list args); 390 391 /* 392 * Devices are registered and created for exporting to sysfs. Create 393 * implies register and register assumes the device fields have been 394 * setup appropriately before being called. 395 */ 396 static inline void 397 device_initialize(struct device *dev) 398 { 399 device_t bsddev = NULL; 400 int unit = -1; 401 402 if (dev->devt) { 403 unit = MINOR(dev->devt); 404 bsddev = devclass_get_device(dev->class->bsdclass, unit); 405 dev->bsddev_attached_here = false; 406 } else if (dev->parent == NULL) { 407 bsddev = devclass_get_device(dev->class->bsdclass, 0); 408 dev->bsddev_attached_here = false; 409 } else { 410 dev->bsddev_attached_here = true; 411 } 412 413 if (bsddev == NULL && dev->parent != NULL) { 414 bsddev = device_add_child(dev->parent->bsddev, 415 dev->class->kobj.name, unit); 416 } 417 418 if (bsddev != NULL) 419 device_set_softc(bsddev, dev); 420 421 dev->bsddev = bsddev; 422 MPASS(dev->bsddev != NULL); 423 kobject_init(&dev->kobj, &linux_dev_ktype); 424 425 spin_lock_init(&dev->devres_lock); 426 INIT_LIST_HEAD(&dev->devres_head); 427 } 428 429 static inline int 430 device_add(struct device *dev) 431 { 432 if (dev->bsddev != NULL) { 433 if (dev->devt == 0) 434 dev->devt = makedev(0, device_get_unit(dev->bsddev)); 435 } 436 kobject_add(&dev->kobj, &dev->class->kobj, dev_name(dev)); 437 438 if (dev->groups) 439 return (sysfs_create_groups(&dev->kobj, dev->groups)); 440 441 return (0); 442 } 443 444 static inline void 445 device_create_release(struct device *dev) 446 { 447 kfree(dev); 448 } 449 450 static inline struct device * 451 device_create_with_groups(struct class *class, 452 struct device *parent, dev_t devt, void *drvdata, 453 const struct attribute_group **groups, const char *fmt, ...) 454 { 455 va_list vargs; 456 struct device *dev; 457 458 va_start(vargs, fmt); 459 dev = device_create_groups_vargs(class, parent, devt, drvdata, 460 groups, fmt, vargs); 461 va_end(vargs); 462 return dev; 463 } 464 465 static inline bool 466 device_is_registered(struct device *dev) 467 { 468 469 return (dev->bsddev != NULL); 470 } 471 472 static inline int 473 device_register(struct device *dev) 474 { 475 device_t bsddev = NULL; 476 int unit = -1; 477 478 if (device_is_registered(dev)) 479 goto done; 480 481 if (dev->devt) { 482 unit = MINOR(dev->devt); 483 bsddev = devclass_get_device(dev->class->bsdclass, unit); 484 dev->bsddev_attached_here = false; 485 } else if (dev->parent == NULL) { 486 bsddev = devclass_get_device(dev->class->bsdclass, 0); 487 dev->bsddev_attached_here = false; 488 } else { 489 dev->bsddev_attached_here = true; 490 } 491 if (bsddev == NULL && dev->parent != NULL) { 492 bsddev = device_add_child(dev->parent->bsddev, 493 dev->class->kobj.name, unit); 494 } 495 if (bsddev != NULL) { 496 if (dev->devt == 0) 497 dev->devt = makedev(0, device_get_unit(bsddev)); 498 device_set_softc(bsddev, dev); 499 } 500 dev->bsddev = bsddev; 501 done: 502 kobject_init(&dev->kobj, &linux_dev_ktype); 503 kobject_add(&dev->kobj, &dev->class->kobj, dev_name(dev)); 504 505 sysfs_create_groups(&dev->kobj, dev->class->dev_groups); 506 507 return (0); 508 } 509 510 static inline void 511 device_unregister(struct device *dev) 512 { 513 device_t bsddev; 514 515 sysfs_remove_groups(&dev->kobj, dev->class->dev_groups); 516 517 bsddev = dev->bsddev; 518 dev->bsddev = NULL; 519 520 if (bsddev != NULL && dev->bsddev_attached_here) { 521 bus_topo_lock(); 522 device_delete_child(device_get_parent(bsddev), bsddev); 523 bus_topo_unlock(); 524 } 525 put_device(dev); 526 } 527 528 static inline void 529 device_del(struct device *dev) 530 { 531 device_t bsddev; 532 533 bsddev = dev->bsddev; 534 dev->bsddev = NULL; 535 536 if (bsddev != NULL && dev->bsddev_attached_here) { 537 bus_topo_lock(); 538 device_delete_child(device_get_parent(bsddev), bsddev); 539 bus_topo_unlock(); 540 } 541 } 542 543 static inline void 544 device_destroy(struct class *class, dev_t devt) 545 { 546 device_t bsddev; 547 int unit; 548 549 unit = MINOR(devt); 550 bsddev = devclass_get_device(class->bsdclass, unit); 551 if (bsddev != NULL) 552 device_unregister(device_get_softc(bsddev)); 553 } 554 555 static inline void 556 device_release_driver(struct device *dev) 557 { 558 559 #if 0 560 /* This leads to panics. Disable temporarily. Keep to rework. */ 561 562 /* We also need to cleanup LinuxKPI bits. What else? */ 563 lkpi_devres_release_free_list(dev); 564 dev_set_drvdata(dev, NULL); 565 /* Do not call dev->release! */ 566 567 bus_topo_lock(); 568 if (device_is_attached(dev->bsddev)) 569 device_detach(dev->bsddev); 570 bus_topo_unlock(); 571 #endif 572 } 573 574 static inline int 575 device_reprobe(struct device *dev) 576 { 577 int error; 578 579 device_release_driver(dev); 580 bus_topo_lock(); 581 error = device_probe_and_attach(dev->bsddev); 582 bus_topo_unlock(); 583 584 return (-error); 585 } 586 587 static inline void 588 device_set_wakeup_enable(struct device *dev __unused, bool enable __unused) 589 { 590 591 /* 592 * XXX-BZ TODO This is used by wireless drivers supporting WoWLAN which 593 * we currently do not support. 594 */ 595 } 596 597 static inline int 598 device_wakeup_enable(struct device *dev) 599 { 600 601 device_set_wakeup_enable(dev, true); 602 return (0); 603 } 604 605 static inline bool 606 device_iommu_mapped(struct device *dev __unused) 607 { 608 return (false); 609 } 610 611 #define dev_pm_set_driver_flags(dev, flags) do { \ 612 } while (0) 613 614 static inline void 615 linux_class_kfree(struct class *class) 616 { 617 618 kfree(class); 619 } 620 621 static inline void 622 class_destroy(struct class *class) 623 { 624 625 if (class == NULL) 626 return; 627 class_unregister(class); 628 } 629 630 static inline int 631 device_create_file(struct device *dev, const struct device_attribute *attr) 632 { 633 634 if (dev) 635 return sysfs_create_file(&dev->kobj, &attr->attr); 636 return -EINVAL; 637 } 638 639 static inline void 640 device_remove_file(struct device *dev, const struct device_attribute *attr) 641 { 642 643 if (dev) 644 sysfs_remove_file(&dev->kobj, &attr->attr); 645 } 646 647 static inline int 648 class_create_file(struct class *class, const struct class_attribute *attr) 649 { 650 651 if (class) 652 return sysfs_create_file(&class->kobj, &attr->attr); 653 return -EINVAL; 654 } 655 656 static inline void 657 class_remove_file(struct class *class, const struct class_attribute *attr) 658 { 659 660 if (class) 661 sysfs_remove_file(&class->kobj, &attr->attr); 662 } 663 664 #define dev_to_node(dev) linux_dev_to_node(dev) 665 #define of_node_to_nid(node) -1 666 int linux_dev_to_node(struct device *); 667 668 char *kvasprintf(gfp_t, const char *, va_list); 669 char *kasprintf(gfp_t, const char *, ...); 670 char *lkpi_devm_kasprintf(struct device *, gfp_t, const char *, ...); 671 672 #define devm_kasprintf(_dev, _gfp, _fmt, ...) \ 673 lkpi_devm_kasprintf(_dev, _gfp, _fmt, ##__VA_ARGS__) 674 675 static __inline void * 676 devm_kmalloc(struct device *dev, size_t size, gfp_t gfp) 677 { 678 void *p; 679 680 p = lkpi_devres_alloc(lkpi_devm_kmalloc_release, size, gfp); 681 if (p != NULL) 682 lkpi_devres_add(dev, p); 683 684 return (p); 685 } 686 687 static inline void * 688 devm_kmemdup(struct device *dev, const void *src, size_t len, gfp_t gfp) 689 { 690 void *dst; 691 692 if (len == 0) 693 return (NULL); 694 695 dst = devm_kmalloc(dev, len, gfp); 696 if (dst != NULL) 697 memcpy(dst, src, len); 698 699 return (dst); 700 } 701 702 #define devm_kzalloc(_dev, _size, _gfp) \ 703 devm_kmalloc((_dev), (_size), (_gfp) | __GFP_ZERO) 704 705 #define devm_kcalloc(_dev, _sizen, _size, _gfp) \ 706 devm_kmalloc((_dev), ((_sizen) * (_size)), (_gfp) | __GFP_ZERO) 707 708 int lkpi_devm_add_action(struct device *dev, void (*action)(void *), void *data); 709 #define devm_add_action(dev, action, data) \ 710 lkpi_devm_add_action(dev, action, data); 711 int lkpi_devm_add_action_or_reset(struct device *dev, void (*action)(void *), void *data); 712 #define devm_add_action_or_reset(dev, action, data) \ 713 lkpi_devm_add_action_or_reset(dev, action, data) 714 715 int lkpi_devm_device_add_group(struct device *dev, const struct attribute_group *group); 716 #define devm_device_add_group(dev, group) \ 717 lkpi_devm_device_add_group(dev, group) 718 719 #endif /* _LINUXKPI_LINUX_DEVICE_H_ */ 720