android_kernel_xiaomi_sm8350/drivers/base/power/power.h
Daniel Drake dec13c1544 create /sys/.../power when CONFIG_PM is set
The CONFIG_SUSPEND changes in 2.6.23 caused a regression under certain
configuration conditions (SUSPEND=n, USB_AUTOSUSPEND=y) where all USB
device attributes in sysfs (idVendor, idProduct, ...) silently disappeared,
causing udev breakage and more.

The cause of this is that the /sys/.../power subdirectory is now only
created when CONFIG_PM_SLEEP is set, however, it should be created whenever
CONFIG_PM is set to handle the above situation.  The following patch fixes
the regression.

Signed-off-by: Daniel Drake <dsd@gentoo.org>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-28 13:53:53 -08:00

58 lines
829 B
C

/*
* shutdown.c
*/
extern void device_shutdown(void);
#ifdef CONFIG_PM_SLEEP
/*
* main.c
*/
extern struct list_head dpm_active; /* The active device list */
static inline struct device *to_device(struct list_head *entry)
{
return container_of(entry, struct device, power.entry);
}
extern void device_pm_add(struct device *);
extern void device_pm_remove(struct device *);
#else /* CONFIG_PM_SLEEP */
static inline void device_pm_add(struct device *dev)
{
}
static inline void device_pm_remove(struct device *dev)
{
}
#endif
#ifdef CONFIG_PM
/*
* sysfs.c
*/
extern int dpm_sysfs_add(struct device *);
extern void dpm_sysfs_remove(struct device *);
#else /* CONFIG_PM */
static inline int dpm_sysfs_add(struct device *dev)
{
return 0;
}
static inline void dpm_sysfs_remove(struct device *dev)
{
}
#endif