Commit 964c93b1 authored by Thomas Weißschuh's avatar Thomas Weißschuh Committed by Greg Kroah-Hartman
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sysfs: transparently handle const pointers in ATTRIBUTE_GROUPS() 



To ease the constification process of 'struct attribute', transparently
handle the const pointers in ATTRIBUTE_GROUPS(). A cast is used instead
of assigning to .attrs_new as it keeps the macro smaller. As both
members are aliased to each other the result is identical.

Signed-off-by: default avatarThomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20251029-sysfs-const-attr-prep-v5-2-ea7d745acff4@weissschuh.net


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent f85d90dd

include/linux/sysfs.h

+6 −1
Original line number Diff line number Diff line
@@ -287,7 +287,12 @@ static const struct attribute_group *_name##_groups[] = { \ 


#define ATTRIBUTE_GROUPS(_name)					\

static const struct attribute_group _name##_group = {		\

	.attrs = _name##_attrs,					\

	.attrs = _Generic(_name##_attrs,			\

			  struct attribute **:			\

				_name##_attrs,			\

			  const struct attribute *const *:	\

				(void *)_name##_attrs		\

	),							\

};								\

__ATTRIBUTE_GROUPS(_name)