audit: add header protection to kernel/audit.h

Protect kernel/audit.h against multiple #include's. Signed-off-by: MaYuming <mayuming77@hotmail.com> [PM: rewrite subj/description] Signed-off-by: Paul Moore <paul@paul-moore.com>
mariux64 · Jul 20, 2021 · d97e993 · d97e993
1 parent e73f0f0
commit d97e993
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/kernel/audit.h b/kernel/audit.h
@@ -6,6 +6,9 @@
  * Copyright 2005 IBM Corporation
  */
 
+#ifndef _KERNEL_AUDIT_H_
+#define _KERNEL_AUDIT_H_
+
 #include <linux/fs.h>
 #include <linux/audit.h>
 #include <linux/skbuff.h>
@@ -331,3 +334,5 @@ extern int audit_filter(int msgtype, unsigned int listtype);
 
 extern void audit_ctl_lock(void);
 extern void audit_ctl_unlock(void);
+
+#endif