Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm...

[mirror_ubuntu-bionic-kernel.git] / include / linux / debugfs.h

diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index 233006be30aa4c775a0ab90886941266f2dc77f8..7dff776e6d160027b34d56fd7bf13030a07ebaea 100644 (file)
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -52,8 +52,7 @@ extern struct srcu_struct debugfs_srcu;
  * Must only be called under the protection established by
  * debugfs_use_file_start().
  */
-static inline const struct file_operations *
-debugfs_real_fops(const struct file *filp)
+static inline const struct file_operations *debugfs_real_fops(const struct file *filp)
        __must_hold(&debugfs_srcu)
 {
        /*
@@ -80,6 +79,8 @@ static const struct file_operations __fops = {                                \
 
 #if defined(CONFIG_DEBUG_FS)
 
+struct dentry *debugfs_lookup(const char *name, struct dentry *parent);
+
 struct dentry *debugfs_create_file(const char *name, umode_t mode,
                                   struct dentry *parent, void *data,
                                   const struct file_operations *fops);
@@ -182,6 +183,12 @@ ssize_t debugfs_write_file_bool(struct file *file, const char __user *user_buf,
  * want to duplicate the design decision mistakes of procfs and devfs again.
  */
 
+static inline struct dentry *debugfs_lookup(const char *name,
+                                           struct dentry *parent)
+{
+       return ERR_PTR(-ENODEV);
+}
+
 static inline struct dentry *debugfs_create_file(const char *name, umode_t mode,
                                        struct dentry *parent, void *data,
                                        const struct file_operations *fops)