configfs_macros.h File Reference

#include <linux/configfs.h>

Go to the source code of this file.

Macros
#define	CONFIGFS_EATTR_STRUCT(_name, _item)
#define	__CONFIGFS_EATTR(_name, _mode, _show, _store)
#define	__CONFIGFS_EATTR_RO(_name, _show)
#define	CONFIGFS_EATTR_OPS_TO_FUNC(_name, _item, _item_member)
#define	CONFIGFS_EATTR_OPS_SHOW(_name, _item)
#define	CONFIGFS_EATTR_OPS_STORE(_name, _item)
#define	CONFIGFS_EATTR_OPS(_name, _item, _item_member)
#define	CONFIGFS_EATTR_OPS_RO(_name, _item, _item_member)

Macro Definition Documentation

#define __CONFIGFS_EATTR	(		_name,
			_mode,
			_show,
			_store
	)

Value:

{                                   \
    .attr   = {                         \
            .ca_name = __stringify(_name),          \
            .ca_mode = _mode,               \
            .ca_owner = THIS_MODULE,            \
    },                              \
    .show   = _show,                        \
    .store  = _store,                       \
}

Definition at line 68 of file configfs_macros.h.

#define __CONFIGFS_EATTR_RO	(		_name,
			_show
	)

Value:

{                                   \
    .attr   = {                         \
            .ca_name = __stringify(_name),          \
            .ca_mode = 0444,                \
            .ca_owner = THIS_MODULE,            \
    },                              \
    .show   = _show,                        \
}

Definition at line 79 of file configfs_macros.h.

#define CONFIGFS_EATTR_OPS	(		_name,
			_item,
			_item_member
	)

Value:

CONFIGFS_EATTR_OPS_TO_FUNC(_name, _item, _item_member);     \
    CONFIGFS_EATTR_OPS_SHOW(_name, _item);              \
    CONFIGFS_EATTR_OPS_STORE(_name, _item);

Definition at line 138 of file configfs_macros.h.

#define CONFIGFS_EATTR_OPS_RO	(		_name,
			_item,
			_item_member
	)

Value:

CONFIGFS_EATTR_OPS_TO_FUNC(_name, _item, _item_member);     \
    CONFIGFS_EATTR_OPS_SHOW(_name, _item);

Definition at line 143 of file configfs_macros.h.

#define CONFIGFS_EATTR_OPS_SHOW	(		_name,
			_item
	)

Value:

static ssize_t _name##_attr_show(struct config_item *item,      \
                 struct configfs_attribute *attr,   \
                 char *page)                \
{                                   \
	struct _item *_item = to_##_name(item);                \
	struct _name##_attribute * _name##_attr =          \
        container_of(attr, struct _name##_attribute, attr); \
	ssize_t ret = 0;                       \
									\
	if (_name##_attr->show)                        \
        ret = _name##_attr->show(_item, page);          \
    return ret;                         \
}

Definition at line 108 of file configfs_macros.h.

#define CONFIGFS_EATTR_OPS_STORE	(		_name,
			_item
	)

Value:

static ssize_t _name##_attr_store(struct config_item *item,     \
                  struct configfs_attribute *attr,  \
                  const char *page, size_t count)   \
{                                   \
	struct _item *_item = to_##_name(item);                \
	struct _name##_attribute * _name##_attr =          \
        container_of(attr, struct _name##_attribute, attr); \
	ssize_t ret = -EINVAL;                     \
									\
	if (_name##_attr->store)                   \
        ret = _name##_attr->store(_item, page, count);      \
    return ret;                         \
}

Definition at line 123 of file configfs_macros.h.

#define CONFIGFS_EATTR_OPS_TO_FUNC	(		_name,
			_item,
			_item_member
	)

Value:

static struct _item *to_##_name(struct config_item *ci)         \
{                                   \
    return (ci) ? container_of(to_config_group(ci), struct _item,   \
        _item_member) : NULL;                   \
}

Definition at line 101 of file configfs_macros.h.

#define CONFIGFS_EATTR_STRUCT	(		_name,
			_item
	)

Value:

struct _name##_attribute {                      \
	struct configfs_attribute attr;                    \
	ssize_t (*show)(struct _item *, char *);           \
	ssize_t (*store)(struct _item *, const char *, size_t);        \
}

Definition at line 53 of file configfs_macros.h.