Re: [PATCH] xen/balloon: add header guard

2020-07-28 Thread Boris Ostrovsky 
On 7/28/20 7:42 AM, Roger Pau Monne wrote:
> In order to protect against the header being included multiple times
> on the same compilation unit.
>
> Signed-off-by: Roger Pau Monné 


Reviewed-by: Boris Ostrovsky

[PATCH] xen/balloon: add header guard

2020-07-28 Thread Roger Pau Monne 
In order to protect against the header being included multiple times
on the same compilation unit.

Signed-off-by: Roger Pau Monné 
---
Cc: Boris Ostrovsky 
Cc: Juergen Gross 
Cc: Stefano Stabellini 
Cc: xen-de...@lists.xenproject.org
---
This is required as a pre-patch to use ZONE_DEVICE, or else the
fallback of including the balloon header might not work properly.
---
 include/xen/balloon.h | 4 
 1 file changed, 4 insertions(+)

diff --git a/include/xen/balloon.h b/include/xen/balloon.h
index 6fb95aa19405..6dbdb0b3fd03 100644
--- 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_UNLIMITED0
 
@@ -34,3 +36,5 @@ static inline void xen_balloon_init(void)
 {
 }
 #endif
+
+#endif /* _XEN_BALLOON_H */
-- 
2.27.0