[PATCH 1/6] xen/arm: add inclusion guards

[Stefano Stabellini <stefano.stabellini@xxxxxxx>]

From: Federico Serafini <federico.serafini@xxxxxxxxxxx>

MISRA C Directive 4.10 states that:
"Precautions shall be taken in order to prevent the contents of a
header file being included more than once".

Add inclusion guards where missing to address violations of the
guideline.

Signed-off-by: Federico Serafini <federico.serafini@xxxxxxxxxxx>
Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxx>
---
 xen/arch/arm/efi/efi-boot.h        | 6 ++++++
 xen/arch/arm/include/asm/efibind.h | 5 +++++
 2 files changed, 11 insertions(+)

diff --git a/xen/arch/arm/efi/efi-boot.h b/xen/arch/arm/efi/efi-boot.h
index dcad46ca72..d2a09ad3a1 100644
--- a/xen/arch/arm/efi/efi-boot.h
+++ b/xen/arch/arm/efi/efi-boot.h
@@ -3,6 +3,10 @@
  * is intended to be included by common/efi/boot.c _only_, and
  * therefore can define arch specific global variables.
  */
+
+#ifndef ARM_EFI_BOOT_H
+#define ARM_EFI_BOOT_H
+
 #include <xen/device_tree.h>
 #include <xen/libfdt/libfdt.h>
 #include <asm/setup.h>
@@ -1003,6 +1007,8 @@ static void __init efi_arch_flush_dcache_area(const void 
*vaddr, UINTN size)
     __flush_dcache_area(vaddr, size);
 }
 
+#endif /* ARM_EFI_BOOT_H */
+
 /*
  * Local variables:
  * mode: C
diff --git a/xen/arch/arm/include/asm/efibind.h 
b/xen/arch/arm/include/asm/efibind.h
index 09dca7a8c9..92b8bad0bb 100644
--- a/xen/arch/arm/include/asm/efibind.h
+++ b/xen/arch/arm/include/asm/efibind.h
@@ -1,2 +1,7 @@
+#ifndef ARM_EFIBIND_H
+#define ARM_EFIBIND_H
+
 #include <xen/types.h>
 #include <asm/arm64/efibind.h>
+
+#endif /* ARM_EFIBIND_H */
-- 
2.25.1