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Commit e323b2dd authored by Dmitry Torokhov's avatar Dmitry Torokhov Committed by Greg Kroah-Hartman
Browse files

driver core: add device_{add|remove}_group() helpers 



We have helpers that work with NULL terminated array of groups, but many
drivers only create a single supplemental group, and do not want to declare
a group array. Let's provide them with helpers working with a single group.

Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a7670d42

include/linux/device.h

+16 −0
Original line number Original line Diff line number Diff line
@@ -1205,6 +1205,22 @@ extern int __must_check device_add_groups(struct device *dev, 
extern void device_remove_groups(struct device *dev,

extern void device_remove_groups(struct device *dev,

				 const struct attribute_group **groups);

				 const struct attribute_group **groups);





static inline int __must_check device_add_group(struct device *dev,

					const struct attribute_group *grp)

{

	const struct attribute_group *groups[] = { grp, NULL };



	return device_add_groups(dev, groups);

}



static inline void device_remove_group(struct device *dev,

				       const struct attribute_group *grp)

{

	const struct attribute_group *groups[] = { grp, NULL };



	return device_remove_groups(dev, groups);

}



/*

/*

 * Platform "fixup" functions - allow the platform to have their say

 * Platform "fixup" functions - allow the platform to have their say

 * about devices and actions that the general device layer doesn't

 * about devices and actions that the general device layer doesn't