sysfs: make sysfs_init_inode() static

With sysfs_fill_super() converted to use sysfs_get_inode(), there is
no user of sysfs_init_inode() outside of fs/sysfs/inode.c. Make it
static.

Signed-off-by: Tejun Heo <[e-mail]>
Acked-by: Jean Delvare <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

fs/sysfs/inode.c

···
  */
 static struct lock_class_key sysfs_inode_imutex_key;
 
-void sysfs_init_inode(struct sysfs_dirent *sd, struct inode *inode)
+static void sysfs_init_inode(struct sysfs_dirent *sd, struct inode *inode)
 {
 	inode->i_blocks = 0;
 	inode->i_mapping->a_ops = &sysfs_aops;

fs/sysfs/sysfs.h

···
 extern int sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt);
 
 extern void sysfs_delete_inode(struct inode *inode);
-extern void sysfs_init_inode(struct sysfs_dirent *sd, struct inode *inode);
 extern struct inode * sysfs_get_inode(struct sysfs_dirent *sd);
 extern void sysfs_instantiate(struct dentry *dentry, struct inode *inode);