block: pg: add header include guard

Add a header include guard just in case. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
mariux64 · Oct 3, 2019 · 3a4b46c · 3a4b46c
1 parent 964ce50
commit 3a4b46c
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/include/uapi/linux/pg.h b/include/uapi/linux/pg.h
@@ -35,6 +35,9 @@
 
 */
 
+#ifndef _UAPI_LINUX_PG_H
+#define _UAPI_LINUX_PG_H
+
 #define PG_MAGIC	'P'
 #define PG_RESET	'Z'
 #define PG_COMMAND	'C'
@@ -61,4 +64,4 @@ struct pg_read_hdr {
 
 };
 
-/* end of pg.h */
+#endif /* _UAPI_LINUX_PG_H */