xen/balloon: add header guard

royger · jgross1 · commit aecb2016c90a · 2020-09-04T09:59:53.000+02:00
In order to protect against the header being included multiple times on the same compilation unit. Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: https://lore.kernel.org/r/20200901083326.21264-2-roger.pau@citrix.com Signed-off-by: Juergen Gross <jgross@suse.com>
diff --git a/include/xen/balloon.h b/include/xen/balloon.h
@@ -2,6 +2,8 @@
 /******************************************************************************
  * Xen balloon functionality
  */
+#ifndef _XEN_BALLOON_H
+#define _XEN_BALLOON_H
 
 #define RETRY_UNLIMITED	0
 
@@ -34,3 +36,5 @@ static inline void xen_balloon_init(void)
 {
 }
 #endif
+
+#endif	/* _XEN_BALLOON_H */

Original file line number	Diff line number	Diff line change
`@@ -2,6 +2,8 @@`
`2`	`2`	`/******************************************************************************`
`3`	`3`	`* Xen balloon functionality`
`4`	`4`	`*/`
	`5`	`+#ifndef _XEN_BALLOON_H`
	`6`	`+#define _XEN_BALLOON_H`
`5`	`7`
`6`	`8`	`#define RETRY_UNLIMITED 0`
`7`	`9`
`@@ -34,3 +36,5 @@ static inline void xen_balloon_init(void)`
`34`	`36`	`{`
`35`	`37`	`}`
`36`	`38`	`#endif`
	`39`	`+`
	`40`	`+#endif /* _XEN_BALLOON_H */`