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-rw-r--r--drivers/base/base.h11
-rw-r--r--drivers/base/class.c638
-rw-r--r--drivers/base/driver.c10
-rw-r--r--drivers/pcmcia/cs.c13
-rw-r--r--drivers/pcmcia/cs_internal.h3
-rw-r--r--drivers/pcmcia/socket_sysfs.c52
-rw-r--r--fs/debugfs/file.c2
-rw-r--r--fs/sysfs/inode.c2
-rw-r--r--include/linux/device.h97
-rw-r--r--include/linux/io.h4
-rw-r--r--include/linux/klist.h40
-rw-r--r--include/linux/sysfs.h6
-rw-r--r--lib/devres.c4
-rw-r--r--lib/klist.c235
-rw-r--r--lib/kobject.c28
15 files changed, 201 insertions, 944 deletions
diff --git a/drivers/base/base.h b/drivers/base/base.h
index c0444146c09a..2c9ae43e2219 100644
--- a/drivers/base/base.h
+++ b/drivers/base/base.h
@@ -64,17 +64,6 @@ extern void sysdev_shutdown(void);
64extern int sysdev_suspend(pm_message_t state); 64extern int sysdev_suspend(pm_message_t state);
65extern int sysdev_resume(void); 65extern int sysdev_resume(void);
66 66
67static inline struct class_device *to_class_dev(struct kobject *obj)
68{
69 return container_of(obj, struct class_device, kobj);
70}
71
72static inline
73struct class_device_attribute *to_class_dev_attr(struct attribute *_attr)
74{
75 return container_of(_attr, struct class_device_attribute, attr);
76}
77
78extern char *make_class_name(const char *name, struct kobject *kobj); 67extern char *make_class_name(const char *name, struct kobject *kobj);
79 68
80extern int devres_release_all(struct device *dev); 69extern int devres_release_all(struct device *dev);
diff --git a/drivers/base/class.c b/drivers/base/class.c
index b4901799308b..0ef00e8d4153 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -179,27 +179,13 @@ static void class_create_release(struct class *cls)
179 kfree(cls); 179 kfree(cls);
180} 180}
181 181
182static void class_device_create_release(struct class_device *class_dev)
183{
184 pr_debug("%s called for %s\n", __func__, class_dev->class_id);
185 kfree(class_dev);
186}
187
188/* needed to allow these devices to have parent class devices */
189static int class_device_create_uevent(struct class_device *class_dev,
190 struct kobj_uevent_env *env)
191{
192 pr_debug("%s called for %s\n", __func__, class_dev->class_id);
193 return 0;
194}
195
196/** 182/**
197 * class_create - create a struct class structure 183 * class_create - create a struct class structure
198 * @owner: pointer to the module that is to "own" this struct class 184 * @owner: pointer to the module that is to "own" this struct class
199 * @name: pointer to a string for the name of this class. 185 * @name: pointer to a string for the name of this class.
200 * 186 *
201 * This is used to create a struct class pointer that can then be used 187 * This is used to create a struct class pointer that can then be used
202 * in calls to class_device_create(). 188 * in calls to device_create().
203 * 189 *
204 * Note, the pointer created here is to be destroyed when finished by 190 * Note, the pointer created here is to be destroyed when finished by
205 * making a call to class_destroy(). 191 * making a call to class_destroy().
@@ -218,7 +204,6 @@ struct class *class_create(struct module *owner, const char *name)
218 cls->name = name; 204 cls->name = name;
219 cls->owner = owner; 205 cls->owner = owner;
220 cls->class_release = class_create_release; 206 cls->class_release = class_create_release;
221 cls->release = class_device_create_release;
222 207
223 retval = class_register(cls); 208 retval = class_register(cls);
224 if (retval) 209 if (retval)
@@ -246,113 +231,6 @@ void class_destroy(struct class *cls)
246 class_unregister(cls); 231 class_unregister(cls);
247} 232}
248 233
249/* Class Device Stuff */
250
251int class_device_create_file(struct class_device *class_dev,
252 const struct class_device_attribute *attr)
253{
254 int error = -EINVAL;
255 if (class_dev)
256 error = sysfs_create_file(&class_dev->kobj, &attr->attr);
257 return error;
258}
259
260void class_device_remove_file(struct class_device *class_dev,
261 const struct class_device_attribute *attr)
262{
263 if (class_dev)
264 sysfs_remove_file(&class_dev->kobj, &attr->attr);
265}
266
267int class_device_create_bin_file(struct class_device *class_dev,
268 struct bin_attribute *attr)
269{
270 int error = -EINVAL;
271 if (class_dev)
272 error = sysfs_create_bin_file(&class_dev->kobj, attr);
273 return error;
274}
275
276void class_device_remove_bin_file(struct class_device *class_dev,
277 struct bin_attribute *attr)
278{
279 if (class_dev)
280 sysfs_remove_bin_file(&class_dev->kobj, attr);
281}
282
283static ssize_t class_device_attr_show(struct kobject *kobj,
284 struct attribute *attr, char *buf)
285{
286 struct class_device_attribute *class_dev_attr = to_class_dev_attr(attr);
287 struct class_device *cd = to_class_dev(kobj);
288 ssize_t ret = 0;
289
290 if (class_dev_attr->show)
291 ret = class_dev_attr->show(cd, buf);
292 return ret;
293}
294
295static ssize_t class_device_attr_store(struct kobject *kobj,
296 struct attribute *attr,
297 const char *buf, size_t count)
298{
299 struct class_device_attribute *class_dev_attr = to_class_dev_attr(attr);
300 struct class_device *cd = to_class_dev(kobj);
301 ssize_t ret = 0;
302
303 if (class_dev_attr->store)
304 ret = class_dev_attr->store(cd, buf, count);
305 return ret;
306}
307
308static struct sysfs_ops class_dev_sysfs_ops = {
309 .show = class_device_attr_show,
310 .store = class_device_attr_store,
311};
312
313static void class_dev_release(struct kobject *kobj)
314{
315 struct class_device *cd = to_class_dev(kobj);
316 struct class *cls = cd->class;
317
318 pr_debug("device class '%s': release.\n", cd->class_id);
319
320 if (cd->release)
321 cd->release(cd);
322 else if (cls->release)
323 cls->release(cd);
324 else {
325 printk(KERN_ERR "Class Device '%s' does not have a release() "
326 "function, it is broken and must be fixed.\n",
327 cd->class_id);
328 WARN_ON(1);
329 }
330}
331
332static struct kobj_type class_device_ktype = {
333 .sysfs_ops = &class_dev_sysfs_ops,
334 .release = class_dev_release,
335};
336
337static int class_uevent_filter(struct kset *kset, struct kobject *kobj)
338{
339 struct kobj_type *ktype = get_ktype(kobj);
340
341 if (ktype == &class_device_ktype) {
342 struct class_device *class_dev = to_class_dev(kobj);
343 if (class_dev->class)
344 return 1;
345 }
346 return 0;
347}
348
349static const char *class_uevent_name(struct kset *kset, struct kobject *kobj)
350{
351 struct class_device *class_dev = to_class_dev(kobj);
352
353 return class_dev->class->name;
354}
355
356#ifdef CONFIG_SYSFS_DEPRECATED 234#ifdef CONFIG_SYSFS_DEPRECATED
357char *make_class_name(const char *name, struct kobject *kobj) 235char *make_class_name(const char *name, struct kobject *kobj)
358{ 236{
@@ -370,445 +248,8 @@ char *make_class_name(const char *name, struct kobject *kobj)
370 strcat(class_name, kobject_name(kobj)); 248 strcat(class_name, kobject_name(kobj));
371 return class_name; 249 return class_name;
372} 250}
373
374static int make_deprecated_class_device_links(struct class_device *class_dev)
375{
376 char *class_name;
377 int error;
378
379 if (!class_dev->dev)
380 return 0;
381
382 class_name = make_class_name(class_dev->class->name, &class_dev->kobj);
383 if (class_name)
384 error = sysfs_create_link(&class_dev->dev->kobj,
385 &class_dev->kobj, class_name);
386 else
387 error = -ENOMEM;
388 kfree(class_name);
389 return error;
390}
391
392static void remove_deprecated_class_device_links(struct class_device *class_dev)
393{
394 char *class_name;
395
396 if (!class_dev->dev)
397 return;
398
399 class_name = make_class_name(class_dev->class->name, &class_dev->kobj);
400 if (class_name)
401 sysfs_remove_link(&class_dev->dev->kobj, class_name);
402 kfree(class_name);
403}
404#else
405static inline int make_deprecated_class_device_links(struct class_device *cd)
406{ return 0; }
407static void remove_deprecated_class_device_links(struct class_device *cd)
408{ }
409#endif 251#endif
410 252
411static int class_uevent(struct kset *kset, struct kobject *kobj,
412 struct kobj_uevent_env *env)
413{
414 struct class_device *class_dev = to_class_dev(kobj);
415 struct device *dev = class_dev->dev;
416 int retval = 0;
417
418 pr_debug("%s - name = %s\n", __func__, class_dev->class_id);
419
420 if (MAJOR(class_dev->devt)) {
421 add_uevent_var(env, "MAJOR=%u", MAJOR(class_dev->devt));
422
423 add_uevent_var(env, "MINOR=%u", MINOR(class_dev->devt));
424 }
425
426 if (dev) {
427 const char *path = kobject_get_path(&dev->kobj, GFP_KERNEL);
428 if (path) {
429 add_uevent_var(env, "PHYSDEVPATH=%s", path);
430 kfree(path);
431 }
432
433 if (dev->bus)
434 add_uevent_var(env, "PHYSDEVBUS=%s", dev->bus->name);
435
436 if (dev->driver)
437 add_uevent_var(env, "PHYSDEVDRIVER=%s",
438 dev->driver->name);
439 }
440
441 if (class_dev->uevent) {
442 /* have the class device specific function add its stuff */
443 retval = class_dev->uevent(class_dev, env);
444 if (retval)
445 pr_debug("class_dev->uevent() returned %d\n", retval);
446 } else if (class_dev->class->uevent) {
447 /* have the class specific function add its stuff */
448 retval = class_dev->class->uevent(class_dev, env);
449 if (retval)
450 pr_debug("class->uevent() returned %d\n", retval);
451 }
452
453 return retval;
454}
455
456static struct kset_uevent_ops class_uevent_ops = {
457 .filter = class_uevent_filter,
458 .name = class_uevent_name,
459 .uevent = class_uevent,
460};
461
462/*
463 * DO NOT copy how this is created, kset_create_and_add() should be
464 * called, but this is a hold-over from the old-way and will be deleted
465 * entirely soon.
466 */
467static struct kset class_obj_subsys = {
468 .uevent_ops = &class_uevent_ops,
469};
470
471static int class_device_add_attrs(struct class_device *cd)
472{
473 int i;
474 int error = 0;
475 struct class *cls = cd->class;
476
477 if (cls->class_dev_attrs) {
478 for (i = 0; attr_name(cls->class_dev_attrs[i]); i++) {
479 error = class_device_create_file(cd,
480 &cls->class_dev_attrs[i]);
481 if (error)
482 goto err;
483 }
484 }
485done:
486 return error;
487err:
488 while (--i >= 0)
489 class_device_remove_file(cd, &cls->class_dev_attrs[i]);
490 goto done;
491}
492
493static void class_device_remove_attrs(struct class_device *cd)
494{
495 int i;
496 struct class *cls = cd->class;
497
498 if (cls->class_dev_attrs) {
499 for (i = 0; attr_name(cls->class_dev_attrs[i]); i++)
500 class_device_remove_file(cd, &cls->class_dev_attrs[i]);
501 }
502}
503
504static int class_device_add_groups(struct class_device *cd)
505{
506 int i;
507 int error = 0;
508
509 if (cd->groups) {
510 for (i = 0; cd->groups[i]; i++) {
511 error = sysfs_create_group(&cd->kobj, cd->groups[i]);
512 if (error) {
513 while (--i >= 0)
514 sysfs_remove_group(&cd->kobj,
515 cd->groups[i]);
516 goto out;
517 }
518 }
519 }
520out:
521 return error;
522}
523
524static void class_device_remove_groups(struct class_device *cd)
525{
526 int i;
527 if (cd->groups)
528 for (i = 0; cd->groups[i]; i++)
529 sysfs_remove_group(&cd->kobj, cd->groups[i]);
530}
531
532static ssize_t show_dev(struct class_device *class_dev, char *buf)
533{
534 return print_dev_t(buf, class_dev->devt);
535}
536
537static struct class_device_attribute class_devt_attr =
538 __ATTR(dev, S_IRUGO, show_dev, NULL);
539
540static ssize_t store_uevent(struct class_device *class_dev,
541 const char *buf, size_t count)
542{
543 kobject_uevent(&class_dev->kobj, KOBJ_ADD);
544 return count;
545}
546
547static struct class_device_attribute class_uevent_attr =
548 __ATTR(uevent, S_IWUSR, NULL, store_uevent);
549
550void class_device_initialize(struct class_device *class_dev)
551{
552 class_dev->kobj.kset = &class_obj_subsys;
553 kobject_init(&class_dev->kobj, &class_device_ktype);
554 INIT_LIST_HEAD(&class_dev->node);
555}
556
557int class_device_add(struct class_device *class_dev)
558{
559 struct class *parent_class = NULL;
560 struct class_device *parent_class_dev = NULL;
561 struct class_interface *class_intf;
562 int error = -EINVAL;
563
564 class_dev = class_device_get(class_dev);
565 if (!class_dev)
566 return -EINVAL;
567
568 if (!strlen(class_dev->class_id))
569 goto out1;
570
571 parent_class = class_get(class_dev->class);
572 if (!parent_class)
573 goto out1;
574
575 parent_class_dev = class_device_get(class_dev->parent);
576
577 pr_debug("CLASS: registering class device: ID = '%s'\n",
578 class_dev->class_id);
579
580 /* first, register with generic layer. */
581 if (parent_class_dev)
582 class_dev->kobj.parent = &parent_class_dev->kobj;
583 else
584 class_dev->kobj.parent = &parent_class->subsys.kobj;
585
586 error = kobject_add(&class_dev->kobj, class_dev->kobj.parent,
587 "%s", class_dev->class_id);
588 if (error)
589 goto out2;
590
591 /* add the needed attributes to this device */
592 error = sysfs_create_link(&class_dev->kobj,
593 &parent_class->subsys.kobj, "subsystem");
594 if (error)
595 goto out3;
596
597 error = class_device_create_file(class_dev, &class_uevent_attr);
598 if (error)
599 goto out3;
600
601 if (MAJOR(class_dev->devt)) {
602 error = class_device_create_file(class_dev, &class_devt_attr);
603 if (error)
604 goto out4;
605 }
606
607 error = class_device_add_attrs(class_dev);
608 if (error)
609 goto out5;
610
611 if (class_dev->dev) {
612 error = sysfs_create_link(&class_dev->kobj,
613 &class_dev->dev->kobj, "device");
614 if (error)
615 goto out6;
616 }
617
618 error = class_device_add_groups(class_dev);
619 if (error)
620 goto out7;
621
622 error = make_deprecated_class_device_links(class_dev);
623 if (error)
624 goto out8;
625
626 kobject_uevent(&class_dev->kobj, KOBJ_ADD);
627
628 /* notify any interfaces this device is now here */
629 down(&parent_class->sem);
630 list_add_tail(&class_dev->node, &parent_class->children);
631 list_for_each_entry(class_intf, &parent_class->interfaces, node) {
632 if (class_intf->add)
633 class_intf->add(class_dev, class_intf);
634 }
635 up(&parent_class->sem);
636
637 goto out1;
638
639 out8:
640 class_device_remove_groups(class_dev);
641 out7:
642 if (class_dev->dev)
643 sysfs_remove_link(&class_dev->kobj, "device");
644 out6:
645 class_device_remove_attrs(class_dev);
646 out5:
647 if (MAJOR(class_dev->devt))
648 class_device_remove_file(class_dev, &class_devt_attr);
649 out4:
650 class_device_remove_file(class_dev, &class_uevent_attr);
651 out3:
652 kobject_del(&class_dev->kobj);
653 out2:
654 if (parent_class_dev)
655 class_device_put(parent_class_dev);
656 class_put(parent_class);
657 out1:
658 class_device_put(class_dev);
659 return error;
660}
661
662int class_device_register(struct class_device *class_dev)
663{
664 class_device_initialize(class_dev);
665 return class_device_add(class_dev);
666}
667
668/**
669 * class_device_create - creates a class device and registers it with sysfs
670 * @cls: pointer to the struct class that this device should be registered to.
671 * @parent: pointer to the parent struct class_device of this new device, if
672 * any.
673 * @devt: the dev_t for the char device to be added.
674 * @device: a pointer to a struct device that is assiociated with this class
675 * device.
676 * @fmt: string for the class device's name
677 *
678 * This function can be used by char device classes. A struct
679 * class_device will be created in sysfs, registered to the specified
680 * class.
681 * A "dev" file will be created, showing the dev_t for the device, if
682 * the dev_t is not 0,0.
683 * If a pointer to a parent struct class_device is passed in, the newly
684 * created struct class_device will be a child of that device in sysfs.
685 * The pointer to the struct class_device will be returned from the
686 * call. Any further sysfs files that might be required can be created
687 * using this pointer.
688 *
689 * Note: the struct class passed to this function must have previously
690 * been created with a call to class_create().
691 */
692struct class_device *class_device_create(struct class *cls,
693 struct class_device *parent,
694 dev_t devt,
695 struct device *device,
696 const char *fmt, ...)
697{
698 va_list args;
699 struct class_device *class_dev = NULL;
700 int retval = -ENODEV;
701
702 if (cls == NULL || IS_ERR(cls))
703 goto error;
704
705 class_dev = kzalloc(sizeof(*class_dev), GFP_KERNEL);
706 if (!class_dev) {
707 retval = -ENOMEM;
708 goto error;
709 }
710
711 class_dev->devt = devt;
712 class_dev->dev = device;
713 class_dev->class = cls;
714 class_dev->parent = parent;
715 class_dev->release = class_device_create_release;
716 class_dev->uevent = class_device_create_uevent;
717
718 va_start(args, fmt);
719 vsnprintf(class_dev->class_id, BUS_ID_SIZE, fmt, args);
720 va_end(args);
721 retval = class_device_register(class_dev);
722 if (retval)
723 goto error;
724
725 return class_dev;
726
727error:
728 kfree(class_dev);
729 return ERR_PTR(retval);
730}
731
732void class_device_del(struct class_device *class_dev)
733{
734 struct class *parent_class = class_dev->class;
735 struct class_device *parent_device = class_dev->parent;
736 struct class_interface *class_intf;
737
738 if (parent_class) {
739 down(&parent_class->sem);
740 list_del_init(&class_dev->node);
741 list_for_each_entry(class_intf, &parent_class->interfaces, node)
742 if (class_intf->remove)
743 class_intf->remove(class_dev, class_intf);
744 up(&parent_class->sem);
745 }
746
747 if (class_dev->dev) {
748 remove_deprecated_class_device_links(class_dev);
749 sysfs_remove_link(&class_dev->kobj, "device");
750 }
751 sysfs_remove_link(&class_dev->kobj, "subsystem");
752 class_device_remove_file(class_dev, &class_uevent_attr);
753 if (MAJOR(class_dev->devt))
754 class_device_remove_file(class_dev, &class_devt_attr);
755 class_device_remove_attrs(class_dev);
756 class_device_remove_groups(class_dev);
757
758 kobject_uevent(&class_dev->kobj, KOBJ_REMOVE);
759 kobject_del(&class_dev->kobj);
760
761 class_device_put(parent_device);
762 class_put(parent_class);
763}
764
765void class_device_unregister(struct class_device *class_dev)
766{
767 pr_debug("CLASS: Unregistering class device. ID = '%s'\n",
768 class_dev->class_id);
769 class_device_del(class_dev);
770 class_device_put(class_dev);
771}
772
773/**
774 * class_device_destroy - removes a class device that was created with class_device_create()
775 * @cls: the pointer to the struct class that this device was registered * with.
776 * @devt: the dev_t of the device that was previously registered.
777 *
778 * This call unregisters and cleans up a class device that was created with a
779 * call to class_device_create()
780 */
781void class_device_destroy(struct class *cls, dev_t devt)
782{
783 struct class_device *class_dev = NULL;
784 struct class_device *class_dev_tmp;
785
786 down(&cls->sem);
787 list_for_each_entry(class_dev_tmp, &cls->children, node) {
788 if (class_dev_tmp->devt == devt) {
789 class_dev = class_dev_tmp;
790 break;
791 }
792 }
793 up(&cls->sem);
794
795 if (class_dev)
796 class_device_unregister(class_dev);
797}
798
799struct class_device *class_device_get(struct class_device *class_dev)
800{
801 if (class_dev)
802 return to_class_dev(kobject_get(&class_dev->kobj));
803 return NULL;
804}
805
806void class_device_put(struct class_device *class_dev)
807{
808 if (class_dev)
809 kobject_put(&class_dev->kobj);
810}
811
812/** 253/**
813 * class_for_each_device - device iterator 254 * class_for_each_device - device iterator
814 * @class: the class we're iterating 255 * @class: the class we're iterating
@@ -897,56 +338,9 @@ struct device *class_find_device(struct class *class, void *data,
897} 338}
898EXPORT_SYMBOL_GPL(class_find_device); 339EXPORT_SYMBOL_GPL(class_find_device);
899 340
900/**
901 * class_find_child - device iterator for locating a particular class_device
902 * @class: the class we're iterating
903 * @data: data for the match function
904 * @match: function to check class_device
905 *
906 * This function returns a reference to a class_device that is 'found' for
907 * later use, as determined by the @match callback.
908 *
909 * The callback should return 0 if the class_device doesn't match and non-zero
910 * if it does. If the callback returns non-zero, this function will
911 * return to the caller and not iterate over any more class_devices.
912 *
913 * Note, you will need to drop the reference with class_device_put() after use.
914 *
915 * We hold class->sem in this function, so it can not be
916 * re-acquired in @match, otherwise it will self-deadlocking. For
917 * example, calls to add or remove class members would be verboten.
918 */
919struct class_device *class_find_child(struct class *class, void *data,
920 int (*match)(struct class_device *, void *))
921{
922 struct class_device *dev;
923 int found = 0;
924
925 if (!class)
926 return NULL;
927
928 down(&class->sem);
929 list_for_each_entry(dev, &class->children, node) {
930 dev = class_device_get(dev);
931 if (dev) {
932 if (match(dev, data)) {
933 found = 1;
934 break;
935 } else
936 class_device_put(dev);
937 } else
938 break;
939 }
940 up(&class->sem);
941
942 return found ? dev : NULL;
943}
944EXPORT_SYMBOL_GPL(class_find_child);
945
946int class_interface_register(struct class_interface *class_intf) 341int class_interface_register(struct class_interface *class_intf)
947{ 342{
948 struct class *parent; 343 struct class *parent;
949 struct class_device *class_dev;
950 struct device *dev; 344 struct device *dev;
951 345
952 if (!class_intf || !class_intf->class) 346 if (!class_intf || !class_intf->class)
@@ -958,10 +352,6 @@ int class_interface_register(struct class_interface *class_intf)
958 352
959 down(&parent->sem); 353 down(&parent->sem);
960 list_add_tail(&class_intf->node, &parent->interfaces); 354 list_add_tail(&class_intf->node, &parent->interfaces);
961 if (class_intf->add) {
962 list_for_each_entry(class_dev, &parent->children, node)
963 class_intf->add(class_dev, class_intf);
964 }
965 if (class_intf->add_dev) { 355 if (class_intf->add_dev) {
966 list_for_each_entry(dev, &parent->devices, node) 356 list_for_each_entry(dev, &parent->devices, node)
967 class_intf->add_dev(dev, class_intf); 357 class_intf->add_dev(dev, class_intf);
@@ -974,7 +364,6 @@ int class_interface_register(struct class_interface *class_intf)
974void class_interface_unregister(struct class_interface *class_intf) 364void class_interface_unregister(struct class_interface *class_intf)
975{ 365{
976 struct class *parent = class_intf->class; 366 struct class *parent = class_intf->class;
977 struct class_device *class_dev;
978 struct device *dev; 367 struct device *dev;
979 368
980 if (!parent) 369 if (!parent)
@@ -982,10 +371,6 @@ void class_interface_unregister(struct class_interface *class_intf)
982 371
983 down(&parent->sem); 372 down(&parent->sem);
984 list_del_init(&class_intf->node); 373 list_del_init(&class_intf->node);
985 if (class_intf->remove) {
986 list_for_each_entry(class_dev, &parent->children, node)
987 class_intf->remove(class_dev, class_intf);
988 }
989 if (class_intf->remove_dev) { 374 if (class_intf->remove_dev) {
990 list_for_each_entry(dev, &parent->devices, node) 375 list_for_each_entry(dev, &parent->devices, node)
991 class_intf->remove_dev(dev, class_intf); 376 class_intf->remove_dev(dev, class_intf);
@@ -1000,13 +385,6 @@ int __init classes_init(void)
1000 class_kset = kset_create_and_add("class", NULL, NULL); 385 class_kset = kset_create_and_add("class", NULL, NULL);
1001 if (!class_kset) 386 if (!class_kset)
1002 return -ENOMEM; 387 return -ENOMEM;
1003
1004 /* ick, this is ugly, the things we go through to keep from showing up
1005 * in sysfs... */
1006 kset_init(&class_obj_subsys);
1007 kobject_set_name(&class_obj_subsys.kobj, "class_obj");
1008 if (!class_obj_subsys.kobj.parent)
1009 class_obj_subsys.kobj.parent = &class_obj_subsys.kobj;
1010 return 0; 388 return 0;
1011} 389}
1012 390
@@ -1017,19 +395,5 @@ EXPORT_SYMBOL_GPL(class_unregister);
1017EXPORT_SYMBOL_GPL(class_create); 395EXPORT_SYMBOL_GPL(class_create);
1018EXPORT_SYMBOL_GPL(class_destroy); 396EXPORT_SYMBOL_GPL(class_destroy);
1019 397
1020EXPORT_SYMBOL_GPL(class_device_register);
1021EXPORT_SYMBOL_GPL(class_device_unregister);
1022EXPORT_SYMBOL_GPL(class_device_initialize);
1023EXPORT_SYMBOL_GPL(class_device_add);
1024EXPORT_SYMBOL_GPL(class_device_del);
1025EXPORT_SYMBOL_GPL(class_device_get);
1026EXPORT_SYMBOL_GPL(class_device_put);
1027EXPORT_SYMBOL_GPL(class_device_create);
1028EXPORT_SYMBOL_GPL(class_device_destroy);
1029EXPORT_SYMBOL_GPL(class_device_create_file);
1030EXPORT_SYMBOL_GPL(class_device_remove_file);
1031EXPORT_SYMBOL_GPL(class_device_create_bin_file);
1032EXPORT_SYMBOL_GPL(class_device_remove_bin_file);
1033
1034EXPORT_SYMBOL_GPL(class_interface_register); 398EXPORT_SYMBOL_GPL(class_interface_register);
1035EXPORT_SYMBOL_GPL(class_interface_unregister); 399EXPORT_SYMBOL_GPL(class_interface_unregister);
diff --git a/drivers/base/driver.c b/drivers/base/driver.c
index 9a6537f14401..2ef5acf4368b 100644
--- a/drivers/base/driver.c
+++ b/drivers/base/driver.c
@@ -217,12 +217,22 @@ static void driver_remove_groups(struct device_driver *drv,
217int driver_register(struct device_driver *drv) 217int driver_register(struct device_driver *drv)
218{ 218{
219 int ret; 219 int ret;
220 struct device_driver *other;
220 221
221 if ((drv->bus->probe && drv->probe) || 222 if ((drv->bus->probe && drv->probe) ||
222 (drv->bus->remove && drv->remove) || 223 (drv->bus->remove && drv->remove) ||
223 (drv->bus->shutdown && drv->shutdown)) 224 (drv->bus->shutdown && drv->shutdown))
224 printk(KERN_WARNING "Driver '%s' needs updating - please use " 225 printk(KERN_WARNING "Driver '%s' needs updating - please use "
225 "bus_type methods\n", drv->name); 226 "bus_type methods\n", drv->name);
227
228 other = driver_find(drv->name, drv->bus);
229 if (other) {
230 put_driver(other);
231 printk(KERN_ERR "Error: Driver '%s' is already registered, "
232 "aborting...\n", drv->name);
233 return -EEXIST;
234 }
235
226 ret = bus_add_driver(drv); 236 ret = bus_add_driver(drv);
227 if (ret) 237 if (ret)
228 return ret; 238 return ret;
diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c
index 56230dbd347a..29276bd28295 100644
--- a/drivers/pcmcia/cs.c
+++ b/drivers/pcmcia/cs.c
@@ -652,6 +652,9 @@ static int pccardd(void *__skt)
652 complete(&skt->thread_done); 652 complete(&skt->thread_done);
653 return 0; 653 return 0;
654 } 654 }
655 ret = pccard_sysfs_add_socket(&skt->dev);
656 if (ret)
657 dev_warn(&skt->dev, "err %d adding socket attributes\n", ret);
655 658
656 add_wait_queue(&skt->thread_wait, &wait); 659 add_wait_queue(&skt->thread_wait, &wait);
657 complete(&skt->thread_done); 660 complete(&skt->thread_done);
@@ -694,6 +697,7 @@ static int pccardd(void *__skt)
694 remove_wait_queue(&skt->thread_wait, &wait); 697 remove_wait_queue(&skt->thread_wait, &wait);
695 698
696 /* remove from the device core */ 699 /* remove from the device core */
700 pccard_sysfs_remove_socket(&skt->dev);
697 device_unregister(&skt->dev); 701 device_unregister(&skt->dev);
698 702
699 return 0; 703 return 0;
@@ -940,20 +944,13 @@ EXPORT_SYMBOL(pcmcia_socket_class);
940 944
941static int __init init_pcmcia_cs(void) 945static int __init init_pcmcia_cs(void)
942{ 946{
943 int ret;
944
945 init_completion(&pcmcia_unload); 947 init_completion(&pcmcia_unload);
946 ret = class_register(&pcmcia_socket_class); 948 return class_register(&pcmcia_socket_class);
947 if (ret)
948 return (ret);
949 return class_interface_register(&pccard_sysfs_interface);
950} 949}
951 950
952static void __exit exit_pcmcia_cs(void) 951static void __exit exit_pcmcia_cs(void)
953{ 952{
954 class_interface_unregister(&pccard_sysfs_interface);
955 class_unregister(&pcmcia_socket_class); 953 class_unregister(&pcmcia_socket_class);
956
957 wait_for_completion(&pcmcia_unload); 954 wait_for_completion(&pcmcia_unload);
958} 955}
959 956
diff --git a/drivers/pcmcia/cs_internal.h b/drivers/pcmcia/cs_internal.h
index 9fa207e3c7b3..e7d5d141f24d 100644
--- a/drivers/pcmcia/cs_internal.h
+++ b/drivers/pcmcia/cs_internal.h
@@ -121,7 +121,8 @@ struct resource *pcmcia_find_mem_region(u_long base, u_long num, u_long align,
121void release_resource_db(struct pcmcia_socket *s); 121void release_resource_db(struct pcmcia_socket *s);
122 122
123/* In socket_sysfs.c */ 123/* In socket_sysfs.c */
124extern struct class_interface pccard_sysfs_interface; 124extern int pccard_sysfs_add_socket(struct device *dev);
125extern void pccard_sysfs_remove_socket(struct device *dev);
125 126
126/* In cs.c */ 127/* In cs.c */
127extern struct rw_semaphore pcmcia_socket_list_rwsem; 128extern struct rw_semaphore pcmcia_socket_list_rwsem;
diff --git a/drivers/pcmcia/socket_sysfs.c b/drivers/pcmcia/socket_sysfs.c
index b4409002b7f8..562384d6f321 100644
--- a/drivers/pcmcia/socket_sysfs.c
+++ b/drivers/pcmcia/socket_sysfs.c
@@ -356,19 +356,23 @@ static ssize_t pccard_store_cis(struct kobject *kobj,
356} 356}
357 357
358 358
359static struct device_attribute *pccard_socket_attributes[] = { 359static struct attribute *pccard_socket_attributes[] = {
360 &dev_attr_card_type, 360 &dev_attr_card_type.attr,
361 &dev_attr_card_voltage, 361 &dev_attr_card_voltage.attr,
362 &dev_attr_card_vpp, 362 &dev_attr_card_vpp.attr,
363 &dev_attr_card_vcc, 363 &dev_attr_card_vcc.attr,
364 &dev_attr_card_insert, 364 &dev_attr_card_insert.attr,
365 &dev_attr_card_pm_state, 365 &dev_attr_card_pm_state.attr,
366 &dev_attr_card_eject, 366 &dev_attr_card_eject.attr,
367 &dev_attr_card_irq_mask, 367 &dev_attr_card_irq_mask.attr,
368 &dev_attr_available_resources_setup_done, 368 &dev_attr_available_resources_setup_done.attr,
369 NULL, 369 NULL,
370}; 370};
371 371
372static const struct attribute_group socket_attrs = {
373 .attrs = pccard_socket_attributes,
374};
375
372static struct bin_attribute pccard_cis_attr = { 376static struct bin_attribute pccard_cis_attr = {
373 .attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR }, 377 .attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR },
374 .size = 0x200, 378 .size = 0x200,
@@ -376,35 +380,21 @@ static struct bin_attribute pccard_cis_attr = {
376 .write = pccard_store_cis, 380 .write = pccard_store_cis,
377}; 381};
378 382
379static int __devinit pccard_sysfs_add_socket(struct device *dev, 383int pccard_sysfs_add_socket(struct device *dev)
380 struct class_interface *class_intf)
381{ 384{
382 struct device_attribute **attr;
383 int ret = 0; 385 int ret = 0;
384 386
385 for (attr = pccard_socket_attributes; *attr; attr++) { 387 ret = sysfs_create_group(&dev->kobj, &socket_attrs);
386 ret = device_create_file(dev, *attr); 388 if (!ret) {
389 ret = sysfs_create_bin_file(&dev->kobj, &pccard_cis_attr);
387 if (ret) 390 if (ret)
388 break; 391 sysfs_remove_group(&dev->kobj, &socket_attrs);
389 } 392 }
390 if (!ret)
391 ret = sysfs_create_bin_file(&dev->kobj, &pccard_cis_attr);
392
393 return ret; 393 return ret;
394} 394}
395 395
396static void __devexit pccard_sysfs_remove_socket(struct device *dev, 396void pccard_sysfs_remove_socket(struct device *dev)
397 struct class_interface *class_intf)
398{ 397{
399 struct device_attribute **attr;
400
401 sysfs_remove_bin_file(&dev->kobj, &pccard_cis_attr); 398 sysfs_remove_bin_file(&dev->kobj, &pccard_cis_attr);
402 for (attr = pccard_socket_attributes; *attr; attr++) 399 sysfs_remove_group(&dev->kobj, &socket_attrs);
403 device_remove_file(dev, *attr);
404} 400}
405
406struct class_interface pccard_sysfs_interface = {
407 .class = &pcmcia_socket_class,
408 .add_dev = &pccard_sysfs_add_socket,
409 .remove_dev = __devexit_p(&pccard_sysfs_remove_socket),
410};
diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c
index fddffe4851f5..159a5efd6a8a 100644
--- a/fs/debugfs/file.c
+++ b/fs/debugfs/file.c
@@ -9,7 +9,7 @@
9 * 2 as published by the Free Software Foundation. 9 * 2 as published by the Free Software Foundation.
10 * 10 *
11 * debugfs is for people to use instead of /proc or /sys. 11 * debugfs is for people to use instead of /proc or /sys.
12 * See Documentation/DocBook/kernel-api for more details. 12 * See Documentation/DocBook/filesystems for more details.
13 * 13 *
14 */ 14 */
15 15
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index f8b82e73b3bf..eb53c632f856 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -59,6 +59,8 @@ int sysfs_setattr(struct dentry * dentry, struct iattr * iattr)
59 if (error) 59 if (error)
60 return error; 60 return error;
61 61
62 iattr->ia_valid &= ~ATTR_SIZE; /* ignore size changes */
63
62 error = inode_setattr(inode, iattr); 64 error = inode_setattr(inode, iattr);
63 if (error) 65 if (error)
64 return error; 66 return error;
diff --git a/include/linux/device.h b/include/linux/device.h
index 1a060265acea..832fb0eb2933 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -35,7 +35,6 @@ struct device;
35struct device_driver; 35struct device_driver;
36struct driver_private; 36struct driver_private;
37struct class; 37struct class;
38struct class_device;
39struct bus_type; 38struct bus_type;
40struct bus_type_private; 39struct bus_type_private;
41 40
@@ -190,13 +189,10 @@ struct class {
190 struct kset class_dirs; 189 struct kset class_dirs;
191 struct semaphore sem; /* locks children, devices, interfaces */ 190 struct semaphore sem; /* locks children, devices, interfaces */
192 struct class_attribute *class_attrs; 191 struct class_attribute *class_attrs;
193 struct class_device_attribute *class_dev_attrs;
194 struct device_attribute *dev_attrs; 192 struct device_attribute *dev_attrs;
195 193
196 int (*uevent)(struct class_device *dev, struct kobj_uevent_env *env);
197 int (*dev_uevent)(struct device *dev, struct kobj_uevent_env *env); 194 int (*dev_uevent)(struct device *dev, struct kobj_uevent_env *env);
198 195
199 void (*release)(struct class_device *dev);
200 void (*class_release)(struct class *class); 196 void (*class_release)(struct class *class);
201 void (*dev_release)(struct device *dev); 197 void (*dev_release)(struct device *dev);
202 198
@@ -210,9 +206,6 @@ extern int class_for_each_device(struct class *class, void *data,
210 int (*fn)(struct device *dev, void *data)); 206 int (*fn)(struct device *dev, void *data));
211extern struct device *class_find_device(struct class *class, void *data, 207extern struct device *class_find_device(struct class *class, void *data,
212 int (*match)(struct device *, void *)); 208 int (*match)(struct device *, void *));
213extern struct class_device *class_find_child(struct class *class, void *data,
214 int (*match)(struct class_device *, void *));
215
216 209
217struct class_attribute { 210struct class_attribute {
218 struct attribute attr; 211 struct attribute attr;
@@ -228,92 +221,10 @@ extern int __must_check class_create_file(struct class *class,
228extern void class_remove_file(struct class *class, 221extern void class_remove_file(struct class *class,
229 const struct class_attribute *attr); 222 const struct class_attribute *attr);
230 223
231struct class_device_attribute {
232 struct attribute attr;
233 ssize_t (*show)(struct class_device *, char *buf);
234 ssize_t (*store)(struct class_device *, const char *buf, size_t count);
235};
236
237#define CLASS_DEVICE_ATTR(_name, _mode, _show, _store) \
238struct class_device_attribute class_device_attr_##_name = \
239 __ATTR(_name, _mode, _show, _store)
240
241extern int __must_check class_device_create_file(struct class_device *,
242 const struct class_device_attribute *);
243
244/**
245 * struct class_device - class devices
246 * @class: pointer to the parent class for this class device. This is required.
247 * @devt: for internal use by the driver core only.
248 * @node: for internal use by the driver core only.
249 * @kobj: for internal use by the driver core only.
250 * @groups: optional additional groups to be created
251 * @dev: if set, a symlink to the struct device is created in the sysfs
252 * directory for this struct class device.
253 * @class_data: pointer to whatever you want to store here for this struct
254 * class_device. Use class_get_devdata() and class_set_devdata() to get and
255 * set this pointer.
256 * @parent: pointer to a struct class_device that is the parent of this struct
257 * class_device. If NULL, this class_device will show up at the root of the
258 * struct class in sysfs (which is probably what you want to have happen.)
259 * @release: pointer to a release function for this struct class_device. If
260 * set, this will be called instead of the class specific release function.
261 * Only use this if you want to override the default release function, like
262 * when you are nesting class_device structures.
263 * @uevent: pointer to a uevent function for this struct class_device. If
264 * set, this will be called instead of the class specific uevent function.
265 * Only use this if you want to override the default uevent function, like
266 * when you are nesting class_device structures.
267 */
268struct class_device {
269 struct list_head node;
270
271 struct kobject kobj;
272 struct class *class;
273 dev_t devt;
274 struct device *dev;
275 void *class_data;
276 struct class_device *parent;
277 struct attribute_group **groups;
278
279 void (*release)(struct class_device *dev);
280 int (*uevent)(struct class_device *dev, struct kobj_uevent_env *env);
281 char class_id[BUS_ID_SIZE];
282};
283
284static inline void *class_get_devdata(struct class_device *dev)
285{
286 return dev->class_data;
287}
288
289static inline void class_set_devdata(struct class_device *dev, void *data)
290{
291 dev->class_data = data;
292}
293
294
295extern int __must_check class_device_register(struct class_device *);
296extern void class_device_unregister(struct class_device *);
297extern void class_device_initialize(struct class_device *);
298extern int __must_check class_device_add(struct class_device *);
299extern void class_device_del(struct class_device *);
300
301extern struct class_device *class_device_get(struct class_device *);
302extern void class_device_put(struct class_device *);
303
304extern void class_device_remove_file(struct class_device *,
305 const struct class_device_attribute *);
306extern int __must_check class_device_create_bin_file(struct class_device *,
307 struct bin_attribute *);
308extern void class_device_remove_bin_file(struct class_device *,
309 struct bin_attribute *);
310
311struct class_interface { 224struct class_interface {
312 struct list_head node; 225 struct list_head node;
313 struct class *class; 226 struct class *class;
314 227
315 int (*add) (struct class_device *, struct class_interface *);
316 void (*remove) (struct class_device *, struct class_interface *);
317 int (*add_dev) (struct device *, struct class_interface *); 228 int (*add_dev) (struct device *, struct class_interface *);
318 void (*remove_dev) (struct device *, struct class_interface *); 229 void (*remove_dev) (struct device *, struct class_interface *);
319}; 230};
@@ -323,13 +234,6 @@ extern void class_interface_unregister(struct class_interface *);
323 234
324extern struct class *class_create(struct module *owner, const char *name); 235extern struct class *class_create(struct module *owner, const char *name);
325extern void class_destroy(struct class *cls); 236extern void class_destroy(struct class *cls);
326extern struct class_device *class_device_create(struct class *cls,
327 struct class_device *parent,
328 dev_t devt,
329 struct device *device,
330 const char *fmt, ...)
331 __attribute__((format(printf, 5, 6)));
332extern void class_device_destroy(struct class *cls, dev_t devt);
333 237
334/* 238/*
335 * The type of device, "struct device" is embedded in. A class 239 * The type of device, "struct device" is embedded in. A class
@@ -465,7 +369,6 @@ struct device {
465 spinlock_t devres_lock; 369 spinlock_t devres_lock;
466 struct list_head devres_head; 370 struct list_head devres_head;
467 371
468 /* class_device migration path */
469 struct list_head node; 372 struct list_head node;
470 struct class *class; 373 struct class *class;
471 dev_t devt; /* dev_t, creates the sysfs "dev" */ 374 dev_t devt; /* dev_t, creates the sysfs "dev" */
diff --git a/include/linux/io.h b/include/linux/io.h
index e3b2dda6c8eb..3a03a3604cce 100644
--- a/include/linux/io.h
+++ b/include/linux/io.h
@@ -58,9 +58,9 @@ static inline void devm_ioport_unmap(struct device *dev, void __iomem *addr)
58} 58}
59#endif 59#endif
60 60
61void __iomem * devm_ioremap(struct device *dev, unsigned long offset, 61void __iomem *devm_ioremap(struct device *dev, resource_size_t offset,
62 unsigned long size); 62 unsigned long size);
63void __iomem * devm_ioremap_nocache(struct device *dev, unsigned long offset, 63void __iomem *devm_ioremap_nocache(struct device *dev, resource_size_t offset,
64 unsigned long size); 64 unsigned long size);
65void devm_iounmap(struct device *dev, void __iomem *addr); 65void devm_iounmap(struct device *dev, void __iomem *addr);
66int check_signature(const volatile void __iomem *io_addr, 66int check_signature(const volatile void __iomem *io_addr,
diff --git a/include/linux/klist.h b/include/linux/klist.h
index 74071254c9d3..06c338ef7f1b 100644
--- a/include/linux/klist.h
+++ b/include/linux/klist.h
@@ -25,37 +25,47 @@ struct klist {
25 void (*put)(struct klist_node *); 25 void (*put)(struct klist_node *);
26}; 26};
27 27
28#define KLIST_INIT(_name, _get, _put) \
29 { .k_lock = __SPIN_LOCK_UNLOCKED(_name.k_lock), \
30 .k_list = LIST_HEAD_INIT(_name.k_list), \
31 .get = _get, \
32 .put = _put, }
28 33
29extern void klist_init(struct klist * k, void (*get)(struct klist_node *), 34#define DEFINE_KLIST(_name, _get, _put) \
35 struct klist _name = KLIST_INIT(_name, _get, _put)
36
37extern void klist_init(struct klist *k, void (*get)(struct klist_node *),
30 void (*put)(struct klist_node *)); 38 void (*put)(struct klist_node *));
31 39
32struct klist_node { 40struct klist_node {
33 struct klist * n_klist; 41 struct klist *n_klist;
34 struct list_head n_node; 42 struct list_head n_node;
35 struct kref n_ref; 43 struct kref n_ref;
36 struct completion n_removed; 44 struct completion n_removed;
37}; 45};
38 46
39extern void klist_add_tail(struct klist_node * n, struct klist * k); 47extern void klist_add_tail(struct klist_node *n, struct klist *k);
40extern void klist_add_head(struct klist_node * n, struct klist * k); 48extern void klist_add_head(struct klist_node *n, struct klist *k);
49extern void klist_add_after(struct klist_node *n, struct klist_node *pos);
50extern void klist_add_before(struct klist_node *n, struct klist_node *pos);
41 51
42extern void klist_del(struct klist_node * n); 52extern void klist_del(struct klist_node *n);
43extern void klist_remove(struct klist_node * n); 53extern void klist_remove(struct klist_node *n);
44 54
45extern int klist_node_attached(struct klist_node * n); 55extern int klist_node_attached(struct klist_node *n);
46 56
47 57
48struct klist_iter { 58struct klist_iter {
49 struct klist * i_klist; 59 struct klist *i_klist;
50 struct list_head * i_head; 60 struct list_head *i_head;
51 struct klist_node * i_cur; 61 struct klist_node *i_cur;
52}; 62};
53 63
54 64
55extern void klist_iter_init(struct klist * k, struct klist_iter * i); 65extern void klist_iter_init(struct klist *k, struct klist_iter *i);
56extern void klist_iter_init_node(struct klist * k, struct klist_iter * i, 66extern void klist_iter_init_node(struct klist *k, struct klist_iter *i,
57 struct klist_node * n); 67 struct klist_node *n);
58extern void klist_iter_exit(struct klist_iter * i); 68extern void klist_iter_exit(struct klist_iter *i);
59extern struct klist_node * klist_next(struct klist_iter * i); 69extern struct klist_node *klist_next(struct klist_iter *i);
60 70
61#endif 71#endif
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index add3c5a40827..7858eac40aa7 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -190,6 +190,12 @@ static inline int sysfs_create_group(struct kobject *kobj,
190 return 0; 190 return 0;
191} 191}
192 192
193static inline int sysfs_update_group(struct kobject *kobj,
194 const struct attribute_group *grp)
195{
196 return 0;
197}
198
193static inline void sysfs_remove_group(struct kobject *kobj, 199static inline void sysfs_remove_group(struct kobject *kobj,
194 const struct attribute_group *grp) 200 const struct attribute_group *grp)
195{ 201{
diff --git a/lib/devres.c b/lib/devres.c
index edc27a5d1b73..26c87c49d776 100644
--- a/lib/devres.c
+++ b/lib/devres.c
@@ -20,7 +20,7 @@ static int devm_ioremap_match(struct device *dev, void *res, void *match_data)
20 * 20 *
21 * Managed ioremap(). Map is automatically unmapped on driver detach. 21 * Managed ioremap(). Map is automatically unmapped on driver detach.
22 */ 22 */
23void __iomem *devm_ioremap(struct device *dev, unsigned long offset, 23void __iomem *devm_ioremap(struct device *dev, resource_size_t offset,
24 unsigned long size) 24 unsigned long size)
25{ 25{
26 void __iomem **ptr, *addr; 26 void __iomem **ptr, *addr;
@@ -49,7 +49,7 @@ EXPORT_SYMBOL(devm_ioremap);
49 * Managed ioremap_nocache(). Map is automatically unmapped on driver 49 * Managed ioremap_nocache(). Map is automatically unmapped on driver
50 * detach. 50 * detach.
51 */ 51 */
52void __iomem *devm_ioremap_nocache(struct device *dev, unsigned long offset, 52void __iomem *devm_ioremap_nocache(struct device *dev, resource_size_t offset,
53 unsigned long size) 53 unsigned long size)
54{ 54{
55 void __iomem **ptr, *addr; 55 void __iomem **ptr, *addr;
diff --git a/lib/klist.c b/lib/klist.c
index 120bd175aa78..cca37f96faa2 100644
--- a/lib/klist.c
+++ b/lib/klist.c
@@ -1,38 +1,37 @@
1/* 1/*
2 * klist.c - Routines for manipulating klists. 2 * klist.c - Routines for manipulating klists.
3 * 3 *
4 * Copyright (C) 2005 Patrick Mochel
4 * 5 *
5 * This klist interface provides a couple of structures that wrap around 6 * This file is released under the GPL v2.
6 * struct list_head to provide explicit list "head" (struct klist) and
7 * list "node" (struct klist_node) objects. For struct klist, a spinlock
8 * is included that protects access to the actual list itself. struct
9 * klist_node provides a pointer to the klist that owns it and a kref
10 * reference count that indicates the number of current users of that node
11 * in the list.
12 * 7 *
13 * The entire point is to provide an interface for iterating over a list 8 * This klist interface provides a couple of structures that wrap around
14 * that is safe and allows for modification of the list during the 9 * struct list_head to provide explicit list "head" (struct klist) and list
15 * iteration (e.g. insertion and removal), including modification of the 10 * "node" (struct klist_node) objects. For struct klist, a spinlock is
16 * current node on the list. 11 * included that protects access to the actual list itself. struct
12 * klist_node provides a pointer to the klist that owns it and a kref
13 * reference count that indicates the number of current users of that node
14 * in the list.
17 * 15 *
18 * It works using a 3rd object type - struct klist_iter - that is declared 16 * The entire point is to provide an interface for iterating over a list
19 * and initialized before an iteration. klist_next() is used to acquire the 17 * that is safe and allows for modification of the list during the
20 * next element in the list. It returns NULL if there are no more items. 18 * iteration (e.g. insertion and removal), including modification of the
21 * Internally, that routine takes the klist's lock, decrements the reference 19 * current node on the list.
22 * count of the previous klist_node and increments the count of the next
23 * klist_node. It then drops the lock and returns.
24 * 20 *
25 * There are primitives for adding and removing nodes to/from a klist. 21 * It works using a 3rd object type - struct klist_iter - that is declared
26 * When deleting, klist_del() will simply decrement the reference count. 22 * and initialized before an iteration. klist_next() is used to acquire the
27 * Only when the count goes to 0 is the node removed from the list. 23 * next element in the list. It returns NULL if there are no more items.
28 * klist_remove() will try to delete the node from the list and block 24 * Internally, that routine takes the klist's lock, decrements the
29 * until it is actually removed. This is useful for objects (like devices) 25 * reference count of the previous klist_node and increments the count of
30 * that have been removed from the system and must be freed (but must wait 26 * the next klist_node. It then drops the lock and returns.
31 * until all accessors have finished).
32 * 27 *
33 * Copyright (C) 2005 Patrick Mochel 28 * There are primitives for adding and removing nodes to/from a klist.
34 * 29 * When deleting, klist_del() will simply decrement the reference count.
35 * This file is released under the GPL v2. 30 * Only when the count goes to 0 is the node removed from the list.
31 * klist_remove() will try to delete the node from the list and block until
32 * it is actually removed. This is useful for objects (like devices) that
33 * have been removed from the system and must be freed (but must wait until
34 * all accessors have finished).
36 */ 35 */
37 36
38#include <linux/klist.h> 37#include <linux/klist.h>
@@ -40,10 +39,10 @@
40 39
41 40
42/** 41/**
43 * klist_init - Initialize a klist structure. 42 * klist_init - Initialize a klist structure.
44 * @k: The klist we're initializing. 43 * @k: The klist we're initializing.
45 * @get: The get function for the embedding object (NULL if none) 44 * @get: The get function for the embedding object (NULL if none)
46 * @put: The put function for the embedding object (NULL if none) 45 * @put: The put function for the embedding object (NULL if none)
47 * 46 *
48 * Initialises the klist structure. If the klist_node structures are 47 * Initialises the klist structure. If the klist_node structures are
49 * going to be embedded in refcounted objects (necessary for safe 48 * going to be embedded in refcounted objects (necessary for safe
@@ -51,8 +50,7 @@
51 * functions that take and release references on the embedding 50 * functions that take and release references on the embedding
52 * objects. 51 * objects.
53 */ 52 */
54 53void klist_init(struct klist *k, void (*get)(struct klist_node *),
55void klist_init(struct klist * k, void (*get)(struct klist_node *),
56 void (*put)(struct klist_node *)) 54 void (*put)(struct klist_node *))
57{ 55{
58 INIT_LIST_HEAD(&k->k_list); 56 INIT_LIST_HEAD(&k->k_list);
@@ -60,26 +58,23 @@ void klist_init(struct klist * k, void (*get)(struct klist_node *),
60 k->get = get; 58 k->get = get;
61 k->put = put; 59 k->put = put;
62} 60}
63
64EXPORT_SYMBOL_GPL(klist_init); 61EXPORT_SYMBOL_GPL(klist_init);
65 62
66 63static void add_head(struct klist *k, struct klist_node *n)
67static void add_head(struct klist * k, struct klist_node * n)
68{ 64{
69 spin_lock(&k->k_lock); 65 spin_lock(&k->k_lock);
70 list_add(&n->n_node, &k->k_list); 66 list_add(&n->n_node, &k->k_list);
71 spin_unlock(&k->k_lock); 67 spin_unlock(&k->k_lock);
72} 68}
73 69
74static void add_tail(struct klist * k, struct klist_node * n) 70static void add_tail(struct klist *k, struct klist_node *n)
75{ 71{
76 spin_lock(&k->k_lock); 72 spin_lock(&k->k_lock);
77 list_add_tail(&n->n_node, &k->k_list); 73 list_add_tail(&n->n_node, &k->k_list);
78 spin_unlock(&k->k_lock); 74 spin_unlock(&k->k_lock);
79} 75}
80 76
81 77static void klist_node_init(struct klist *k, struct klist_node *n)
82static void klist_node_init(struct klist * k, struct klist_node * n)
83{ 78{
84 INIT_LIST_HEAD(&n->n_node); 79 INIT_LIST_HEAD(&n->n_node);
85 init_completion(&n->n_removed); 80 init_completion(&n->n_removed);
@@ -89,60 +84,83 @@ static void klist_node_init(struct klist * k, struct klist_node * n)
89 k->get(n); 84 k->get(n);
90} 85}
91 86
92
93/** 87/**
94 * klist_add_head - Initialize a klist_node and add it to front. 88 * klist_add_head - Initialize a klist_node and add it to front.
95 * @n: node we're adding. 89 * @n: node we're adding.
96 * @k: klist it's going on. 90 * @k: klist it's going on.
97 */ 91 */
98 92void klist_add_head(struct klist_node *n, struct klist *k)
99void klist_add_head(struct klist_node * n, struct klist * k)
100{ 93{
101 klist_node_init(k, n); 94 klist_node_init(k, n);
102 add_head(k, n); 95 add_head(k, n);
103} 96}
104
105EXPORT_SYMBOL_GPL(klist_add_head); 97EXPORT_SYMBOL_GPL(klist_add_head);
106 98
107
108/** 99/**
109 * klist_add_tail - Initialize a klist_node and add it to back. 100 * klist_add_tail - Initialize a klist_node and add it to back.
110 * @n: node we're adding. 101 * @n: node we're adding.
111 * @k: klist it's going on. 102 * @k: klist it's going on.
112 */ 103 */
113 104void klist_add_tail(struct klist_node *n, struct klist *k)
114void klist_add_tail(struct klist_node * n, struct klist * k)
115{ 105{
116 klist_node_init(k, n); 106 klist_node_init(k, n);
117 add_tail(k, n); 107 add_tail(k, n);
118} 108}
119
120EXPORT_SYMBOL_GPL(klist_add_tail); 109EXPORT_SYMBOL_GPL(klist_add_tail);
121 110
111/**
112 * klist_add_after - Init a klist_node and add it after an existing node
113 * @n: node we're adding.
114 * @pos: node to put @n after
115 */
116void klist_add_after(struct klist_node *n, struct klist_node *pos)
117{
118 struct klist *k = pos->n_klist;
119
120 klist_node_init(k, n);
121 spin_lock(&k->k_lock);
122 list_add(&n->n_node, &pos->n_node);
123 spin_unlock(&k->k_lock);
124}
125EXPORT_SYMBOL_GPL(klist_add_after);
126
127/**
128 * klist_add_before - Init a klist_node and add it before an existing node
129 * @n: node we're adding.
130 * @pos: node to put @n after
131 */
132void klist_add_before(struct klist_node *n, struct klist_node *pos)
133{
134 struct klist *k = pos->n_klist;
135
136 klist_node_init(k, n);
137 spin_lock(&k->k_lock);
138 list_add_tail(&n->n_node, &pos->n_node);
139 spin_unlock(&k->k_lock);
140}
141EXPORT_SYMBOL_GPL(klist_add_before);
122 142
123static void klist_release(struct kref * kref) 143static void klist_release(struct kref *kref)
124{ 144{
125 struct klist_node * n = container_of(kref, struct klist_node, n_ref); 145 struct klist_node *n = container_of(kref, struct klist_node, n_ref);
126 146
127 list_del(&n->n_node); 147 list_del(&n->n_node);
128 complete(&n->n_removed); 148 complete(&n->n_removed);
129 n->n_klist = NULL; 149 n->n_klist = NULL;
130} 150}
131 151
132static int klist_dec_and_del(struct klist_node * n) 152static int klist_dec_and_del(struct klist_node *n)
133{ 153{
134 return kref_put(&n->n_ref, klist_release); 154 return kref_put(&n->n_ref, klist_release);
135} 155}
136 156
137
138/** 157/**
139 * klist_del - Decrement the reference count of node and try to remove. 158 * klist_del - Decrement the reference count of node and try to remove.
140 * @n: node we're deleting. 159 * @n: node we're deleting.
141 */ 160 */
142 161void klist_del(struct klist_node *n)
143void klist_del(struct klist_node * n)
144{ 162{
145 struct klist * k = n->n_klist; 163 struct klist *k = n->n_klist;
146 void (*put)(struct klist_node *) = k->put; 164 void (*put)(struct klist_node *) = k->put;
147 165
148 spin_lock(&k->k_lock); 166 spin_lock(&k->k_lock);
@@ -152,48 +170,40 @@ void klist_del(struct klist_node * n)
152 if (put) 170 if (put)
153 put(n); 171 put(n);
154} 172}
155
156EXPORT_SYMBOL_GPL(klist_del); 173EXPORT_SYMBOL_GPL(klist_del);
157 174
158
159/** 175/**
160 * klist_remove - Decrement the refcount of node and wait for it to go away. 176 * klist_remove - Decrement the refcount of node and wait for it to go away.
161 * @n: node we're removing. 177 * @n: node we're removing.
162 */ 178 */
163 179void klist_remove(struct klist_node *n)
164void klist_remove(struct klist_node * n)
165{ 180{
166 klist_del(n); 181 klist_del(n);
167 wait_for_completion(&n->n_removed); 182 wait_for_completion(&n->n_removed);
168} 183}
169
170EXPORT_SYMBOL_GPL(klist_remove); 184EXPORT_SYMBOL_GPL(klist_remove);
171 185
172
173/** 186/**
174 * klist_node_attached - Say whether a node is bound to a list or not. 187 * klist_node_attached - Say whether a node is bound to a list or not.
175 * @n: Node that we're testing. 188 * @n: Node that we're testing.
176 */ 189 */
177 190int klist_node_attached(struct klist_node *n)
178int klist_node_attached(struct klist_node * n)
179{ 191{
180 return (n->n_klist != NULL); 192 return (n->n_klist != NULL);
181} 193}
182
183EXPORT_SYMBOL_GPL(klist_node_attached); 194EXPORT_SYMBOL_GPL(klist_node_attached);
184 195
185
186/** 196/**
187 * klist_iter_init_node - Initialize a klist_iter structure. 197 * klist_iter_init_node - Initialize a klist_iter structure.
188 * @k: klist we're iterating. 198 * @k: klist we're iterating.
189 * @i: klist_iter we're filling. 199 * @i: klist_iter we're filling.
190 * @n: node to start with. 200 * @n: node to start with.
191 * 201 *
192 * Similar to klist_iter_init(), but starts the action off with @n, 202 * Similar to klist_iter_init(), but starts the action off with @n,
193 * instead of with the list head. 203 * instead of with the list head.
194 */ 204 */
195 205void klist_iter_init_node(struct klist *k, struct klist_iter *i,
196void klist_iter_init_node(struct klist * k, struct klist_iter * i, struct klist_node * n) 206 struct klist_node *n)
197{ 207{
198 i->i_klist = k; 208 i->i_klist = k;
199 i->i_head = &k->k_list; 209 i->i_head = &k->k_list;
@@ -201,66 +211,56 @@ void klist_iter_init_node(struct klist * k, struct klist_iter * i, struct klist_
201 if (n) 211 if (n)
202 kref_get(&n->n_ref); 212 kref_get(&n->n_ref);
203} 213}
204
205EXPORT_SYMBOL_GPL(klist_iter_init_node); 214EXPORT_SYMBOL_GPL(klist_iter_init_node);
206 215
207
208/** 216/**
209 * klist_iter_init - Iniitalize a klist_iter structure. 217 * klist_iter_init - Iniitalize a klist_iter structure.
210 * @k: klist we're iterating. 218 * @k: klist we're iterating.
211 * @i: klist_iter structure we're filling. 219 * @i: klist_iter structure we're filling.
212 * 220 *
213 * Similar to klist_iter_init_node(), but start with the list head. 221 * Similar to klist_iter_init_node(), but start with the list head.
214 */ 222 */
215 223void klist_iter_init(struct klist *k, struct klist_iter *i)
216void klist_iter_init(struct klist * k, struct klist_iter * i)
217{ 224{
218 klist_iter_init_node(k, i, NULL); 225 klist_iter_init_node(k, i, NULL);
219} 226}
220
221EXPORT_SYMBOL_GPL(klist_iter_init); 227EXPORT_SYMBOL_GPL(klist_iter_init);
222 228
223
224/** 229/**
225 * klist_iter_exit - Finish a list iteration. 230 * klist_iter_exit - Finish a list iteration.
226 * @i: Iterator structure. 231 * @i: Iterator structure.
227 * 232 *
228 * Must be called when done iterating over list, as it decrements the 233 * Must be called when done iterating over list, as it decrements the
229 * refcount of the current node. Necessary in case iteration exited before 234 * refcount of the current node. Necessary in case iteration exited before
230 * the end of the list was reached, and always good form. 235 * the end of the list was reached, and always good form.
231 */ 236 */
232 237void klist_iter_exit(struct klist_iter *i)
233void klist_iter_exit(struct klist_iter * i)
234{ 238{
235 if (i->i_cur) { 239 if (i->i_cur) {
236 klist_del(i->i_cur); 240 klist_del(i->i_cur);
237 i->i_cur = NULL; 241 i->i_cur = NULL;
238 } 242 }
239} 243}
240
241EXPORT_SYMBOL_GPL(klist_iter_exit); 244EXPORT_SYMBOL_GPL(klist_iter_exit);
242 245
243 246static struct klist_node *to_klist_node(struct list_head *n)
244static struct klist_node * to_klist_node(struct list_head * n)
245{ 247{
246 return container_of(n, struct klist_node, n_node); 248 return container_of(n, struct klist_node, n_node);
247} 249}
248 250
249
250/** 251/**
251 * klist_next - Ante up next node in list. 252 * klist_next - Ante up next node in list.
252 * @i: Iterator structure. 253 * @i: Iterator structure.
253 * 254 *
254 * First grab list lock. Decrement the reference count of the previous 255 * First grab list lock. Decrement the reference count of the previous
255 * node, if there was one. Grab the next node, increment its reference 256 * node, if there was one. Grab the next node, increment its reference
256 * count, drop the lock, and return that next node. 257 * count, drop the lock, and return that next node.
257 */ 258 */
258 259struct klist_node *klist_next(struct klist_iter *i)
259struct klist_node * klist_next(struct klist_iter * i)
260{ 260{
261 struct list_head * next; 261 struct list_head *next;
262 struct klist_node * lnode = i->i_cur; 262 struct klist_node *lnode = i->i_cur;
263 struct klist_node * knode = NULL; 263 struct klist_node *knode = NULL;
264 void (*put)(struct klist_node *) = i->i_klist->put; 264 void (*put)(struct klist_node *) = i->i_klist->put;
265 265
266 spin_lock(&i->i_klist->k_lock); 266 spin_lock(&i->i_klist->k_lock);
@@ -281,7 +281,4 @@ struct klist_node * klist_next(struct klist_iter * i)
281 put(lnode); 281 put(lnode);
282 return knode; 282 return knode;
283} 283}
284
285EXPORT_SYMBOL_GPL(klist_next); 284EXPORT_SYMBOL_GPL(klist_next);
286
287
diff --git a/lib/kobject.c b/lib/kobject.c
index fd7874032163..718e5101c263 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -216,21 +216,12 @@ static int kobject_add_internal(struct kobject *kobj)
216static int kobject_set_name_vargs(struct kobject *kobj, const char *fmt, 216static int kobject_set_name_vargs(struct kobject *kobj, const char *fmt,
217 va_list vargs) 217 va_list vargs)
218{ 218{
219 va_list aq;
220 char *name;
221
222 va_copy(aq, vargs);
223 name = kvasprintf(GFP_KERNEL, fmt, vargs);
224 va_end(aq);
225
226 if (!name)
227 return -ENOMEM;
228
229 /* Free the old name, if necessary. */ 219 /* Free the old name, if necessary. */
230 kfree(kobj->name); 220 kfree(kobj->name);
231 221
232 /* Now, set the new name */ 222 kobj->name = kvasprintf(GFP_KERNEL, fmt, vargs);
233 kobj->name = name; 223 if (!kobj->name)
224 return -ENOMEM;
234 225
235 return 0; 226 return 0;
236} 227}
@@ -246,12 +237,12 @@ static int kobject_set_name_vargs(struct kobject *kobj, const char *fmt,
246 */ 237 */
247int kobject_set_name(struct kobject *kobj, const char *fmt, ...) 238int kobject_set_name(struct kobject *kobj, const char *fmt, ...)
248{ 239{
249 va_list args; 240 va_list vargs;
250 int retval; 241 int retval;
251 242
252 va_start(args, fmt); 243 va_start(vargs, fmt);
253 retval = kobject_set_name_vargs(kobj, fmt, args); 244 retval = kobject_set_name_vargs(kobj, fmt, vargs);
254 va_end(args); 245 va_end(vargs);
255 246
256 return retval; 247 return retval;
257} 248}
@@ -301,12 +292,9 @@ EXPORT_SYMBOL(kobject_init);
301static int kobject_add_varg(struct kobject *kobj, struct kobject *parent, 292static int kobject_add_varg(struct kobject *kobj, struct kobject *parent,
302 const char *fmt, va_list vargs) 293 const char *fmt, va_list vargs)
303{ 294{
304 va_list aq;
305 int retval; 295 int retval;
306 296
307 va_copy(aq, vargs); 297 retval = kobject_set_name_vargs(kobj, fmt, vargs);
308 retval = kobject_set_name_vargs(kobj, fmt, aq);
309 va_end(aq);
310 if (retval) { 298 if (retval) {
311 printk(KERN_ERR "kobject: can not set name properly!\n"); 299 printk(KERN_ERR "kobject: can not set name properly!\n");
312 return retval; 300 return retval;
generated by cgit v1.2.2 (git 2.25.0) at 2025-11-06 00:45:05 -0500