uapi/linux/stddef.h: Add include guards

Add include guard wrapper define to uapi/linux/stddef.h to prevent macro redefinition errors when stddef.h is included more than once. This was not needed before since the only contents already used a redefinition test. Signed-off-by: Tadeusz Struk <[email protected]> Link: https://lore.kernel.org/r/[email protected] Fixes: 50d7bd3 ("stddef: Introduce struct_group() helper macro") Cc: [email protected] Signed-off-by: Kees Cook <[email protected]>
pop-os · Mar 31, 2022 · 55037ed · 55037ed
1 parent 229a08a
commit 55037ed
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/include/uapi/linux/stddef.h b/include/uapi/linux/stddef.h
@@ -1,4 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_LINUX_STDDEF_H
+#define _UAPI_LINUX_STDDEF_H
+
 #include <linux/compiler_types.h>
 
 #ifndef __always_inline
@@ -41,3 +44,4 @@
 		struct { } __empty_ ## NAME; \
 		TYPE NAME[]; \
 	}
+#endif