[PATCH v1] lib/string_helpers: Add missed declaration of struct task_struct

[Andy Shevchenko]

Starting from the commit 0d0443288f22 the new function has been
introduced which takes struct task_struct as a parameter. Though,
compiler doesn't know where to get information about it at this stage.

Add missed declaration of struct task_struct to satisfy compiler.

Fixes: 0d0443288f22 ("string_helpers: add kstrdup_quotable_cmdline")
Cc: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: James Morris <james.l.morris@xxxxxxxxxx>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
 include/linux/string_helpers.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/string_helpers.h b/include/linux/string_helpers.h
index 4397c52ec4a4..d23c5030901a 100644
--- a/include/linux/string_helpers.h
+++ b/include/linux/string_helpers.h
@@ -5,6 +5,7 @@
 #include <linux/types.h>
 
 struct file;
+struct task_struct;
 
 /* Descriptions of the types of units to
  * print in */
-- 
2.17.0