[sysfs] Mark some arguments const.

From Stephen Hemminger

fs/sysfs/dir.c

@@ -22,7 +22,7 @@ static int init_dir(struct inode * inode)
 
 
 static struct dentry * 
-create_dir(struct kobject * k, struct dentry * p, char * n)
+create_dir(struct kobject * k, struct dentry * p, const char * n)
 {
 	struct dentry * dentry;
 
@@ -47,7 +47,7 @@ create_dir(struct kobject * k, struct dentry * p, char * n)
 }
 
 
-struct dentry * sysfs_create_subdir(struct kobject * k, char * n)
+struct dentry * sysfs_create_subdir(struct kobject * k, const char * n)
 {
 	return create_dir(k,k->dentry,n);
 }
@@ -155,7 +155,7 @@ void sysfs_remove_dir(struct kobject * kobj)
 	dput(dentry);
 }
 
-void sysfs_rename_dir(struct kobject * kobj, char *new_name)
+void sysfs_rename_dir(struct kobject * kobj, const char *new_name)
 {
 	struct dentry * new_dentry, * parent;
 

fs/sysfs/file.c

@@ -345,7 +345,7 @@ static struct file_operations sysfs_file_operations = {
 };
 
 
-int sysfs_add_file(struct dentry * dir, struct attribute * attr)
+int sysfs_add_file(struct dentry * dir, const struct attribute * attr)
 {
 	struct dentry * dentry;
 	int error;
@@ -368,7 +368,7 @@ int sysfs_add_file(struct dentry * dir, struct attribute * attr)
  *	@attr:	atrribute descriptor.
  */
 
-int sysfs_create_file(struct kobject * kobj, struct attribute * attr)
+int sysfs_create_file(struct kobject * kobj, const struct attribute * attr)
 {
 	if (kobj && attr)
 		return sysfs_add_file(kobj->dentry,attr);
@@ -384,7 +384,7 @@ int sysfs_create_file(struct kobject * kobj, struct attribute * attr)
  * Also call dnotify for the dentry, which lots of userspace programs
  * use.
  */
-int sysfs_update_file(struct kobject * kobj, struct attribute * attr)
+int sysfs_update_file(struct kobject * kobj, const struct attribute * attr)
 {
 	struct dentry * dir = kobj->dentry;
 	struct dentry * victim;
@@ -425,7 +425,7 @@ int sysfs_update_file(struct kobject * kobj, struct attribute * attr)
  *	Hash the attribute name and kill the victim.
  */
 
-void sysfs_remove_file(struct kobject * kobj, struct attribute * attr)
+void sysfs_remove_file(struct kobject * kobj, const struct attribute * attr)
 {
 	sysfs_hash_and_remove(kobj->dentry,attr->name);
 }

fs/sysfs/group.c

@@ -15,18 +15,19 @@
 #include "sysfs.h"
 
 
-static void remove_files(struct dentry * dir, struct attribute_group * grp)
+static void remove_files(struct dentry * dir, 
+			 const struct attribute_group * grp)
 {
-	struct attribute ** attr;
+	struct attribute *const* attr;
 
 	for (attr = grp->attrs; *attr; attr++)
 		sysfs_hash_and_remove(dir,(*attr)->name);
 }
 
 static int create_files(struct dentry * dir,
-			struct attribute_group * grp)
+			const struct attribute_group * grp)
 {
-	struct attribute ** attr;
+	struct attribute *const* attr;
 	int error = 0;
 
 	for (attr = grp->attrs; *attr && !error; attr++) {
@@ -38,7 +39,8 @@ static int create_files(struct dentry * dir,
 }
 
 
-int sysfs_create_group(struct kobject * kobj, struct attribute_group * grp)
+int sysfs_create_group(struct kobject * kobj, 
+		       const struct attribute_group * grp)
 {
 	struct dentry * dir;
 	int error;
@@ -58,7 +60,8 @@ int sysfs_create_group(struct kobject * kobj, struct attribute_group * grp)
 	return error;
 }
 
-void sysfs_remove_group(struct kobject * kobj, struct attribute_group * grp)
+void sysfs_remove_group(struct kobject * kobj, 
+			const struct attribute_group * grp)
 {
 	struct dentry * dir;
 

fs/sysfs/sysfs.h

@@ -4,10 +4,10 @@ extern struct vfsmount * sysfs_mount;
 extern struct inode * sysfs_new_inode(mode_t mode);
 extern int sysfs_create(struct dentry *, int mode, int (*init)(struct inode *));
 
-extern struct dentry * sysfs_get_dentry(struct dentry *, char *);
+extern struct dentry * sysfs_get_dentry(struct dentry *, const char *);
 
-extern int sysfs_add_file(struct dentry * dir, struct attribute * attr);
+extern int sysfs_add_file(struct dentry * dir, const struct attribute * attr);
 extern void sysfs_hash_and_remove(struct dentry * dir, const char * name);
 
-extern struct dentry * sysfs_create_subdir(struct kobject *, char *);
+extern struct dentry * sysfs_create_subdir(struct kobject *, const char *);
 extern void sysfs_remove_subdir(struct dentry *);

include/linux/sysfs.h

@@ -40,16 +40,16 @@ extern void
 sysfs_remove_dir(struct kobject *);
 
 extern void
-sysfs_rename_dir(struct kobject *, char *new_name);
+sysfs_rename_dir(struct kobject *, const char *new_name);
 
 extern int
-sysfs_create_file(struct kobject *, struct attribute *);
+sysfs_create_file(struct kobject *, const struct attribute *);
 
 extern int
-sysfs_update_file(struct kobject *, struct attribute *);
+sysfs_update_file(struct kobject *, const struct attribute *);
 
 extern void
-sysfs_remove_file(struct kobject *, struct attribute *);
+sysfs_remove_file(struct kobject *, const struct attribute *);
 
 extern int 
 sysfs_create_link(struct kobject * kobj, struct kobject * target, char * name);
@@ -63,7 +63,7 @@ struct attribute_group {
 	struct attribute	** attrs;
 };
 
-int sysfs_create_group(struct kobject *, struct attribute_group *);
-void sysfs_remove_group(struct kobject *, struct attribute_group *);
+int sysfs_create_group(struct kobject *, const struct attribute_group *);
+void sysfs_remove_group(struct kobject *, const struct attribute_group *);
 
 #endif /* _SYSFS_H_ */