DEBUG WARNING enable debugfs writing of regmap registers

matthew-gerlach · Russ Weight · commit 4d263915372a · 2021-04-15T10:18:47.000-07:00
Enable writing via debugfs to regmap registers by defining the necessary
macro.

This change is potentially dangerous and is intended for development
only and not recommended for production deployment.

Signed-off-by: Matthew Gerlach &lt;matthew.gerlach@linux.intel.com&gt;
diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c
@@ -290,7 +290,7 @@ static ssize_t regmap_map_read_file(struct file *file, char __user *user_buf,
 				   count, ppos);
 }
 
-#undef REGMAP_ALLOW_WRITE_DEBUGFS
+#define REGMAP_ALLOW_WRITE_DEBUGFS
 #ifdef REGMAP_ALLOW_WRITE_DEBUGFS
 /*
  * This can be dangerous especially when we have clients such as

Original file line number	Diff line number	Diff line change
`@@ -290,7 +290,7 @@ static ssize_t regmap_map_read_file(struct file file, char __user user_buf,`
`290`	`290`	`count, ppos);`
`291`	`291`	`}`
`292`	`292`
`293`		`-#undef REGMAP_ALLOW_WRITE_DEBUGFS`
	`293`	`+#define REGMAP_ALLOW_WRITE_DEBUGFS`
`294`	`294`	`#ifdef REGMAP_ALLOW_WRITE_DEBUGFS`
`295`	`295`	`/*`
`296`	`296`	`* This can be dangerous especially when we have clients such as`