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sysfs.h: add ATTRIBUTE_GROUPS() macro

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commit f2f37f58b1 upstream.

To make it easier for driver subsystems to work with attribute groups,
create the ATTRIBUTE_GROUPS macro to remove some of the repetitive
typing for the most common use for attribute groups.

Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Zefan Li <lizefan@huawei.com>
This commit is contained in:
Greg Kroah-Hartman 2013-07-14 16:05:52 -07:00 committed by Zefan Li
parent 5b724689fa
commit aa12b754cf
1 changed files with 9 additions and 0 deletions
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9
include/linux/sysfs.h
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@ -80,6 +80,15 @@ struct attribute_group {
#define __ATTR_NULL { .attr = { .name = NULL } }
#define ATTRIBUTE_GROUPS(name) \
static const struct attribute_group name##_group = { \
.attrs = name##_attrs, \
}; \
static const struct attribute_group *name##_groups[] = { \
&name##_group, \
NULL, \
}
#define attr_name(_attr) (_attr).attr.name
struct file;