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-rw-r--r--include/linux/debugfs.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index 19c066dce1da..33d708d91a5c 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -46,6 +46,8 @@ extern struct dentry *arch_debugfs_dir;
/* declared over in file.c */
extern const struct file_operations debugfs_file_operations;
+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);
@@ -134,6 +136,12 @@ 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)