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Driver core: bin_attribute parameters can often be const*

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Many struct bin_attribute descriptors are purely read-only
structures, and there's no need to change them. Therefore
make the promise not to, which will let those descriptors
be put in a ro section.

Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Phil Carmody 2009-12-18 15:34:20 +02:00 committed by Greg Kroah-Hartman
parent 26579ab70a
commit 66ecb92be9
4 changed files with 16 additions and 11 deletions
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6
drivers/base/core.c
View file

@ -472,7 +472,8 @@ void device_remove_file(struct device *dev,
* @dev: device.
* @attr: device binary attribute descriptor.
*/
int device_create_bin_file(struct device *dev, struct bin_attribute *attr)
int device_create_bin_file(struct device *dev,
const struct bin_attribute *attr)
{
int error = -EINVAL;
if (dev)
@ -486,7 +487,8 @@ EXPORT_SYMBOL_GPL(device_create_bin_file);
* @dev: device.
* @attr: device binary attribute descriptor.
*/
void device_remove_bin_file(struct device *dev, struct bin_attribute *attr)
void device_remove_bin_file(struct device *dev,
const struct bin_attribute *attr)
{
if (dev)
sysfs_remove_bin_file(&dev->kobj, attr);

6
fs/sysfs/bin.c
View file

@ -483,7 +483,8 @@ void unmap_bin_file(struct sysfs_dirent *attr_sd)
* @attr: attribute descriptor.
*/
int sysfs_create_bin_file(struct kobject * kobj, struct bin_attribute * attr)
int sysfs_create_bin_file(struct kobject *kobj,
const struct bin_attribute *attr)
{
BUG_ON(!kobj || !kobj->sd || !attr);
@ -497,7 +498,8 @@ int sysfs_create_bin_file(struct kobject * kobj, struct bin_attribute * attr)
* @attr: attribute descriptor.
*/
void sysfs_remove_bin_file(struct kobject * kobj, struct bin_attribute * attr)
void sysfs_remove_bin_file(struct kobject *kobj,
const struct bin_attribute *attr)
{
sysfs_hash_and_remove(kobj->sd, attr->attr.name);
}

6
include/linux/device.h
View file

@ -319,13 +319,13 @@ struct device_attribute {
struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, _show, _store)
extern int __must_check device_create_file(struct device *device,
const struct device_attribute *entry);
const struct device_attribute *entry);
extern void device_remove_file(struct device *dev,
const struct device_attribute *attr);
extern int __must_check device_create_bin_file(struct device *dev,
struct bin_attribute *attr);
const struct bin_attribute *attr);
extern void device_remove_bin_file(struct device *dev,
struct bin_attribute *attr);
const struct bin_attribute *attr);
extern int device_schedule_callback_owner(struct device *dev,
void (*func)(struct device *dev), struct module *owner);

9
include/linux/sysfs.h
View file

@ -99,8 +99,9 @@ int __must_check sysfs_chmod_file(struct kobject *kobj, struct attribute *attr,
void sysfs_remove_file(struct kobject *kobj, const struct attribute *attr);
int __must_check sysfs_create_bin_file(struct kobject *kobj,
struct bin_attribute *attr);
void sysfs_remove_bin_file(struct kobject *kobj, struct bin_attribute *attr);
const struct bin_attribute *attr);
void sysfs_remove_bin_file(struct kobject *kobj,
const struct bin_attribute *attr);
int __must_check sysfs_create_link(struct kobject *kobj, struct kobject *target,
const char *name);
@ -175,13 +176,13 @@ static inline void sysfs_remove_file(struct kobject *kobj,
}
static inline int sysfs_create_bin_file(struct kobject *kobj,
struct bin_attribute *attr)
const struct bin_attribute *attr)
{
return 0;
}
static inline void sysfs_remove_bin_file(struct kobject *kobj,
struct bin_attribute *attr)
const struct bin_attribute *attr)
{
}