diff --git a/arch/alpha/include/asm/types.h b/arch/alpha/include/asm/types.h
index e46e503..8815443 100644
--- a/arch/alpha/include/asm/types.h
+++ b/arch/alpha/include/asm/types.h
@@ -20,15 +20,4 @@
 typedef unsigned int umode_t;
 
 #endif /* __ASSEMBLY__ */
-
-/*
- * These aren't exported outside the kernel to avoid name space clashes
- */
-#ifdef __KERNEL__
-#ifndef __ASSEMBLY__
-
-typedef u64 dma64_addr_t;
-
-#endif /* __ASSEMBLY__ */
-#endif /* __KERNEL__ */
 #endif /* _ALPHA_TYPES_H */
diff --git a/arch/arm/include/asm/types.h b/arch/arm/include/asm/types.h
index c684e37..48192ac 100644
--- a/arch/arm/include/asm/types.h
+++ b/arch/arm/include/asm/types.h
@@ -16,12 +16,6 @@
 
 #define BITS_PER_LONG 32
 
-#ifndef __ASSEMBLY__
-
-typedef u32 dma64_addr_t;
-
-#endif /* __ASSEMBLY__ */
-
 #endif /* __KERNEL__ */
 
 #endif
diff --git a/arch/cris/include/asm/types.h b/arch/cris/include/asm/types.h
index 4405508..551a12c 100644
--- a/arch/cris/include/asm/types.h
+++ b/arch/cris/include/asm/types.h
@@ -16,12 +16,6 @@
 
 #define BITS_PER_LONG 32
 
-#ifndef __ASSEMBLY__
-
-typedef u32 dma64_addr_t;
-
-#endif /* __ASSEMBLY__ */
-
 #endif /* __KERNEL__ */
 
 #endif
diff --git a/arch/m32r/include/asm/types.h b/arch/m32r/include/asm/types.h
index fd84b48..bd00355 100644
--- a/arch/m32r/include/asm/types.h
+++ b/arch/m32r/include/asm/types.h
@@ -16,12 +16,6 @@
 
 #define BITS_PER_LONG 32
 
-#ifndef __ASSEMBLY__
-
-typedef u64 dma64_addr_t;
-
-#endif /* __ASSEMBLY__ */
-
 #endif /* __KERNEL__ */
 
 #endif /* _ASM_M32R_TYPES_H */
diff --git a/arch/m68k/include/asm/types.h b/arch/m68k/include/asm/types.h
index 10ad92f..b17fd11 100644
--- a/arch/m68k/include/asm/types.h
+++ b/arch/m68k/include/asm/types.h
@@ -23,12 +23,6 @@
 
 #define BITS_PER_LONG 32
 
-#ifndef __ASSEMBLY__
-
-typedef u32 dma64_addr_t;
-
-#endif /* __ASSEMBLY__ */
-
 #endif /* __KERNEL__ */
 
 #endif /* _M68K_TYPES_H */
diff --git a/arch/mips/include/asm/types.h b/arch/mips/include/asm/types.h
index 9520dc8..533812b 100644
--- a/arch/mips/include/asm/types.h
+++ b/arch/mips/include/asm/types.h
@@ -33,8 +33,6 @@
 #ifdef __KERNEL__
 #ifndef __ASSEMBLY__
 
-typedef u64 dma64_addr_t;
-
 /*
  * Don't use phys_t.  You've been warned.
  */
diff --git a/arch/parisc/include/asm/types.h b/arch/parisc/include/asm/types.h
index bc164dd..80e415c 100644
--- a/arch/parisc/include/asm/types.h
+++ b/arch/parisc/include/asm/types.h
@@ -9,17 +9,4 @@
 
 #endif /* __ASSEMBLY__ */
 
-/*
- * These aren't exported outside the kernel to avoid name space clashes
- */
-#ifdef __KERNEL__
-
-#ifndef __ASSEMBLY__
-
-typedef u64 dma64_addr_t;
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* __KERNEL__ */
-
 #endif
diff --git a/arch/powerpc/include/asm/types.h b/arch/powerpc/include/asm/types.h
index e16a6b2..8947b98 100644
--- a/arch/powerpc/include/asm/types.h
+++ b/arch/powerpc/include/asm/types.h
@@ -44,8 +44,6 @@
 
 typedef __vector128 vector128;
 
-typedef u64 dma64_addr_t;
-
 typedef struct {
 	unsigned long entry;
 	unsigned long toc;
diff --git a/arch/s390/include/asm/types.h b/arch/s390/include/asm/types.h
index f7f6ae6..eeb52cc 100644
--- a/arch/s390/include/asm/types.h
+++ b/arch/s390/include/asm/types.h
@@ -30,8 +30,6 @@
 
 #ifndef __ASSEMBLY__
 
-typedef u64 dma64_addr_t;
-
 #ifndef __s390x__
 typedef union {
 	unsigned long long pair;
diff --git a/arch/sparc/include/asm/types.h b/arch/sparc/include/asm/types.h
index f02d330..91e5a03 100644
--- a/arch/sparc/include/asm/types.h
+++ b/arch/sparc/include/asm/types.h
@@ -18,24 +18,6 @@
 
 #endif /* __ASSEMBLY__ */
 
-#ifdef __KERNEL__
-
-#ifndef __ASSEMBLY__
-
-#if defined(__arch64__)
-
-/*** SPARC 64 bit ***/
-typedef u64 dma64_addr_t;
-#else
-/*** SPARC 32 bit ***/
-typedef u32 dma64_addr_t;
-
-#endif /* defined(__arch64__) */
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* __KERNEL__ */
-
 #endif /* defined(__sparc__) */
 
 #endif /* defined(_SPARC_TYPES_H) */
diff --git a/arch/x86/include/asm/types.h b/arch/x86/include/asm/types.h
index 8810205..8e8c23f 100644
--- a/arch/x86/include/asm/types.h
+++ b/arch/x86/include/asm/types.h
@@ -3,12 +3,4 @@
 
 #include <asm-generic/types.h>
 
-#ifdef __KERNEL__
-#ifndef __ASSEMBLY__
-
-typedef u64 dma64_addr_t;
-
-#endif /* __ASSEMBLY__ */
-#endif /* __KERNEL__ */
-
 #endif /* _ASM_X86_TYPES_H */