| From | Ben Hutchings <> | Date | Tue, 17 Feb 2015 01:46:53 +0000 | Subject | [PATCH 3.2 111/152] sysfs.h: add ATTRIBUTE_GROUPS() macro |
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3.2.67-rc1 review patch. If anyone has any objections, please let me know.
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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit f2f37f58b1b933b06d6d84e80a31a1b500fb0db2 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: Ben Hutchings <ben@decadent.org.uk> --- include/linux/sysfs.h | 9 +++++++++ 1 file changed, 9 insertions(+)
--- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -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;
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