x86: Fix ASM_X86__ header guards

Change header guards named "ASM_X86__*" to "_ASM_X86_*" since:

a. the double underscore is ugly and pointless.
b. no leading underscore violates namespace constraints.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h
index 961e746da977..0c770f8aa002 100644
--- a/arch/x86/include/asm/iommu.h
+++ b/arch/x86/include/asm/iommu.h
@@ -1,5 +1,5 @@
-#ifndef ASM_X86__IOMMU_H
-#define ASM_X86__IOMMU_H
+#ifndef _ASM_X86_IOMMU_H
+#define _ASM_X86_IOMMU_H
 
 extern void pci_iommu_shutdown(void);
 extern void no_iommu_init(void);
@@ -43,4 +43,4 @@ static inline void gart_iommu_hole_init(void)
 }
 #endif
 
-#endif /* ASM_X86__IOMMU_H */
+#endif /* _ASM_X86_IOMMU_H */