[XEN PATCH 08/13] x86/mm: address violations of MISRA C:2012 Directive 4.10

[Simone Ballarin <simone.ballarin@xxxxxxxxxxx>]

Add inclusion guards to address violations of
MISRA C:2012 Directive 4.10 ("Precautions shall be taken in order
to prevent the contents of a header file being included more than
once").

C files, if included somewhere, need to comply with the guideline.

Mechanical change.

Signed-off-by: Simone Ballarin <simone.ballarin@xxxxxxxxxxx>
---
 xen/arch/x86/mm/guest_walk.c     | 5 +++++
 xen/arch/x86/mm/hap/guest_walk.c | 4 ++++
 2 files changed, 9 insertions(+)

diff --git a/xen/arch/x86/mm/guest_walk.c b/xen/arch/x86/mm/guest_walk.c
index fe7393334f..66c127156d 100644
--- a/xen/arch/x86/mm/guest_walk.c
+++ b/xen/arch/x86/mm/guest_walk.c
@@ -9,6 +9,9 @@
  * Parts based on earlier work by Michael A Fetterman, Ian Pratt et al.
  */
 
+#ifndef __X86_MM_GUEST_WALK_C__
+#define __X86_MM_GUEST_WALK_C__
+
 #include <xen/types.h>
 #include <xen/mm.h>
 #include <xen/paging.h>
@@ -576,6 +579,8 @@ void *map_domain_gfn(struct p2m_domain *p2m, gfn_t gfn, 
mfn_t *mfn,
 }
 #endif
 
+#endif /* __X86_MM_GUEST_WALK_C__ */
+
 /*
  * Local variables:
  * mode: C
diff --git a/xen/arch/x86/mm/hap/guest_walk.c b/xen/arch/x86/mm/hap/guest_walk.c
index d1b7c5762c..d4ffa8141f 100644
--- a/xen/arch/x86/mm/hap/guest_walk.c
+++ b/xen/arch/x86/mm/hap/guest_walk.c
@@ -7,6 +7,9 @@
  * Copyright (c) 2007, XenSource Inc.
  */
 
+#ifndef __X86_MM_HAP_GUEST_WALK_C__
+#define __X86_MM_HAP_GUEST_WALK_C__
+
 #include <xen/domain_page.h>
 #include <xen/paging.h>
 #include <xen/sched.h>
@@ -124,6 +127,7 @@ unsigned long cf_check 
hap_p2m_ga_to_gfn(GUEST_PAGING_LEVELS)(
     return gfn_x(INVALID_GFN);
 }
 
+#endif /* __X86_MM_HAP_GUEST_WALK_C__ */
 
 /*
  * Local variables:
-- 
2.34.1