debugfs: Export bool read/write functions
The file read/write functions for bools have no special dependencies
on debugfs internals and are sufficiently non-trivial to be worth
exporting so clients can re-use the implementation.
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index 420311b..9beb636 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -116,6 +116,12 @@
bool debugfs_initialized(void);
+ssize_t debugfs_read_file_bool(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos);
+
+ssize_t debugfs_write_file_bool(struct file *file, const char __user *user_buf,
+ size_t count, loff_t *ppos);
+
#else
#include <linux/err.h>
@@ -282,6 +288,20 @@
return ERR_PTR(-ENODEV);
}
+static inline ssize_t debugfs_read_file_bool(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ return -ENODEV;
+}
+
+static inline ssize_t debugfs_write_file_bool(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ return -ENODEV;
+}
+
#endif
#endif