diff --git a/arch/alpha/include/asm/md.h b/arch/alpha/include/asm/md.h
deleted file mode 100644
index 6c9b8222a4f2..000000000000
--- a/arch/alpha/include/asm/md.h
+++ /dev/null
@@ -1,13 +0,0 @@
-/* $Id: md.h,v 1.1 1997/12/15 15:11:48 jj Exp $
- * md.h: High speed xor_block operation for RAID4/5 
- *
- */
- 
-#ifndef __ASM_MD_H
-#define __ASM_MD_H
-
-/* #define HAVE_ARCH_XORBLOCK */
-
-#define MD_XORBLOCK_ALIGNMENT	sizeof(long)
-
-#endif /* __ASM_MD_H */
diff --git a/arch/h8300/include/asm/md.h b/arch/h8300/include/asm/md.h
deleted file mode 100644
index 1b7300e0a175..000000000000
--- a/arch/h8300/include/asm/md.h
+++ /dev/null
@@ -1,13 +0,0 @@
-/*
- * md.h: High speed xor_block operation for RAID4/5 
- *
- */
- 
-#ifndef __ASM_MD_H
-#define __ASM_MD_H
-
-/* #define HAVE_ARCH_XORBLOCK */
-
-#define MD_XORBLOCK_ALIGNMENT	sizeof(long)
-
-#endif /* __ASM_MD_H */
diff --git a/arch/m68k/include/asm/md.h b/arch/m68k/include/asm/md.h
deleted file mode 100644
index d2f78f226f3d..000000000000
--- a/arch/m68k/include/asm/md.h
+++ /dev/null
@@ -1,13 +0,0 @@
-/*
- * md.h: High speed xor_block operation for RAID4/5
- *
- */
-
-#ifndef __ASM_MD_H
-#define __ASM_MD_H
-
-/* #define HAVE_ARCH_XORBLOCK */
-
-#define MD_XORBLOCK_ALIGNMENT	sizeof(long)
-
-#endif /* __ASM_MD_H */