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-rw-r--r--include/asm-x86/io.h8
1 files changed, 5 insertions, 3 deletions
diff --git a/include/asm-x86/io.h b/include/asm-x86/io.h
index 0f954dc..72b7719 100644
--- a/include/asm-x86/io.h
+++ b/include/asm-x86/io.h
@@ -1,5 +1,5 @@
-#ifndef _ASM_X86_IO_H
-#define _ASM_X86_IO_H
+#ifndef ASM_X86__IO_H
+#define ASM_X86__IO_H
#define ARCH_HAS_IOREMAP_WC
@@ -73,6 +73,8 @@ build_mmio_write(__writeq, "q", unsigned long, "r", )
#define writeq writeq
#endif
+extern int iommu_bio_merge;
+
#ifdef CONFIG_X86_32
# include "io_32.h"
#else
@@ -99,4 +101,4 @@ extern void early_iounmap(void *addr, unsigned long size);
extern void __iomem *fix_ioremap(unsigned idx, unsigned long phys);
-#endif /* _ASM_X86_IO_H */
+#endif /* ASM_X86__IO_H */
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