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sysfs: add more helper macro's for (bin_)attribute(_groups)

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With the recent changes to sysfs there's various helper macro's.
However there's no RW, RO BIN_ helper macro's. This patch adds them.

Signed-off-by: Oliver Schinagl <oliver@schinagl.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Oliver Schinagl 2013-07-14 16:05:59 -07:00 committed by Greg Kroah-Hartman
parent d05a6f96c7
commit 3493f69f4c
1 changed files with 38 additions and 13 deletions
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51
include/linux/sysfs.h
View file

@ -17,6 +17,7 @@
#include <linux/list.h>
#include <linux/lockdep.h>
#include <linux/kobject_ns.h>
#include <linux/stat.h>
#include <linux/atomic.h>
struct kobject;
@ -94,15 +95,18 @@ struct attribute_group {
#define __ATTR_IGNORE_LOCKDEP __ATTR
#endif
#define ATTRIBUTE_GROUPS(name) \
static const struct attribute_group name##_group = { \
.attrs = name##_attrs, \
}; \
static const struct attribute_group *name##_groups[] = { \
&name##_group, \
#define __ATTRIBUTE_GROUPS(_name) \
static const struct attribute_group *_name##_groups[] = { \
&_name##_group, \
NULL, \
}
#define ATTRIBUTE_GROUPS(_name) \
static const struct attribute_group _name##_group = { \
.attrs = _name##_attrs, \
}; \
__ATTRIBUTE_GROUPS(_name)
#define attr_name(_attr) (_attr).attr.name
struct file;
@ -132,15 +136,36 @@ struct bin_attribute {
*/
#define sysfs_bin_attr_init(bin_attr) sysfs_attr_init(&(bin_attr)->attr)
/* macro to create static binary attributes easier */
#define BIN_ATTR(_name, _mode, _read, _write, _size) \
struct bin_attribute bin_attr_##_name = { \
.attr = {.name = __stringify(_name), .mode = _mode }, \
.read = _read, \
.write = _write, \
.size = _size, \
/* macros to create static binary attributes easier */
#define __BIN_ATTR(_name, _mode, _read, _write, _size) { \
.attr = { .name = __stringify(_name), .mode = _mode }, \
.read = _read, \
.write = _write, \
.size = _size, \
}
#define __BIN_ATTR_RO(_name, _size) { \
.attr = { .name = __stringify(_name), .mode = S_IRUGO }, \
.read = _name##_read, \
.size = _size, \
}
#define __BIN_ATTR_RW(_name, _size) __BIN_ATTR(_name, \
(S_IWUSR | S_IRUGO), _name##_read, \
_name##_write)
#define __BIN_ATTR_NULL __ATTR_NULL
#define BIN_ATTR(_name, _mode, _read, _write, _size) \
struct bin_attribute bin_attr_##_name = __BIN_ATTR(_name, _mode, _read, \
_write, _size)
#define BIN_ATTR_RO(_name, _size) \
struct bin_attribute bin_attr_##_name = __BIN_ATTR_RO(_name, _size)
#define BIN_ATTR_RW(_name, _size) \
struct bin_attribute bin_attr_##_name = __BIN_ATTR_RW(_name, _size)
struct sysfs_ops {
ssize_t (*show)(struct kobject *, struct attribute *,char *);
ssize_t (*store)(struct kobject *,struct attribute *,const char *, size_t);