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PM: Remove destroy_suspended_device()

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After 2.6.24 there was a plan to make the PM core acquire all device
semaphores during a suspend/hibernation to protect itself from
concurrent operations involving device objects.  That proved to be
too heavy-handed and we found a better way to achieve the goal, but
before it happened, we had introduced the functions
device_pm_schedule_removal() and destroy_suspended_device() to allow
drivers to "safely" destroy a suspended device and we had adapted some
drivers to use them.  Now that these functions are no longer necessary,
it seems reasonable to remove them and modify their users to use the
normal device unregistration instead.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Rafael J. Wysocki 2008-03-23 20:28:24 +01:00 • committed by Greg Kroah-Hartman
parent 138fe4e069
commit b844eba292
13 changed files with 22 additions and 146 deletions
Download patch file Download diff file Expand all files Collapse all files

14
include/linux/device.h
View file

@ -545,20 +545,6 @@ extern struct device *device_create(struct class *cls, struct device *parent,
dev_t devt, const char *fmt, ...)
__attribute__((format(printf, 4, 5)));
extern void device_destroy(struct class *cls, dev_t devt);
#ifdef CONFIG_PM_SLEEP
extern void destroy_suspended_device(struct class *cls, dev_t devt);
extern void device_pm_schedule_removal(struct device *);
#else /* !CONFIG_PM_SLEEP */
static inline void destroy_suspended_device(struct class *cls, dev_t devt)
{
device_destroy(cls, devt);
}
static inline void device_pm_schedule_removal(struct device *dev)
{
device_unregister(dev);
}
#endif /* !CONFIG_PM_SLEEP */
/*
* Platform "fixup" functions - allow the platform to have their say

10
include/linux/hw_random.h
View file

@ -44,15 +44,7 @@ struct hwrng {
/** Register a new Hardware Random Number Generator driver. */
extern int hwrng_register(struct hwrng *rng);
/** Unregister a Hardware Random Number Generator driver. */
extern void __hwrng_unregister(struct hwrng *rng, bool suspended);
static inline void hwrng_unregister(struct hwrng *rng)
{
__hwrng_unregister(rng, false);
}
static inline void hwrng_unregister_suspended(struct hwrng *rng)
{
__hwrng_unregister(rng, true);
}
extern void hwrng_unregister(struct hwrng *rng);
#endif /* __KERNEL__ */
#endif /* LINUX_HWRANDOM_H_ */

10
include/linux/leds.h
View file

@ -59,15 +59,7 @@ struct led_classdev {
extern int led_classdev_register(struct device *parent,
struct led_classdev *led_cdev);
extern void __led_classdev_unregister(struct led_classdev *led_cdev, bool sus);
static inline void led_classdev_unregister(struct led_classdev *lcd)
{
__led_classdev_unregister(lcd, false);
}
static inline void led_classdev_unregister_suspended(struct led_classdev *lcd)
{
__led_classdev_unregister(lcd, true);
}
extern void led_classdev_unregister(struct led_classdev *lcd);
extern void led_classdev_suspend(struct led_classdev *led_cdev);
extern void led_classdev_resume(struct led_classdev *led_cdev);

10
include/linux/miscdevice.h
View file

@ -43,15 +43,7 @@ struct miscdevice {
};
extern int misc_register(struct miscdevice * misc);
extern int __misc_deregister(struct miscdevice *misc, bool suspended);
static inline int misc_deregister(struct miscdevice *misc)
{
return __misc_deregister(misc, false);
}
static inline int misc_deregister_suspended(struct miscdevice *misc)
{
return __misc_deregister(misc, true);
}
extern int misc_deregister(struct miscdevice *misc);
#define MODULE_ALIAS_MISCDEV(minor) \
MODULE_ALIAS("char-major-" __stringify(MISC_MAJOR) \