sh: Initial consolidation of the _32/_64 uaccess split.

This consolidates everything but the bare assembly routines, which we
will sync up in a follow-up patch.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

include/asm-sh/uaccess.h

 #ifndef __ASM_SH_UACCESS_H
 #define __ASM_SH_UACCESS_H
 
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <asm/segment.h>
+
+#define VERIFY_READ    0
+#define VERIFY_WRITE   1
+
+#define __addr_ok(addr) \
+	((unsigned long __force)(addr) < current_thread_info()->addr_limit.seg)
+
+/*
+ * __access_ok: Check if address with size is OK or not.
+ *
+ * Uhhuh, this needs 33-bit arithmetic. We have a carry..
+ *
+ * sum := addr + size;  carry? --> flag = true;
+ * if (sum >= addr_limit) flag = true;
+ */
+#define __access_ok(addr, size)		\
+	(__addr_ok((addr) + (size)))
+#define access_ok(type, addr, size)	\
+	(__chk_user_ptr(addr),		\
+	 __access_ok((unsigned long __force)(addr), (size)))
+
+/*
+ * Uh, these should become the main single-value transfer routines ...
+ * They automatically use the right size if we just have the right
+ * pointer type ...
+ *
+ * As SuperH uses the same address space for kernel and user data, we
+ * can just do these as direct assignments.
+ *
+ * Careful to not
+ * (a) re-use the arguments for side effects (sizeof is ok)
+ * (b) require any knowledge of processes at this stage
+ */
+#define put_user(x,ptr)		__put_user_check((x), (ptr), sizeof(*(ptr)))
+#define get_user(x,ptr)		__get_user_check((x), (ptr), sizeof(*(ptr)))
+
+/*
+ * The "__xxx" versions do not do address space checking, useful when
+ * doing multiple accesses to the same area (the user has to do the
+ * checks by hand with "access_ok()")
+ */
+#define __put_user(x,ptr)	__put_user_nocheck((x), (ptr), sizeof(*(ptr)))
+#define __get_user(x,ptr)	__get_user_nocheck((x), (ptr), sizeof(*(ptr)))
+
+struct __large_struct { unsigned long buf[100]; };
+#define __m(x) (*(struct __large_struct __user *)(x))
+
+#define __get_user_nocheck(x,ptr,size)				\
+({								\
+	long __gu_err;						\
+	unsigned long __gu_val;					\
+	const __typeof__(*(ptr)) __user *__gu_addr = (ptr);	\
+	__chk_user_ptr(ptr);					\
+	__get_user_size(__gu_val, __gu_addr, (size), __gu_err);	\
+	(x) = (__typeof__(*(ptr)))__gu_val;			\
+	__gu_err;						\
+})
+
+#define __get_user_check(x,ptr,size)					\
+({									\
+	long __gu_err = -EFAULT;					\
+	unsigned long __gu_val = 0;					\
+	const __typeof__(*(ptr)) *__gu_addr = (ptr);			\
+	if (likely(access_ok(VERIFY_READ, __gu_addr, (size))))		\
+		__get_user_size(__gu_val, __gu_addr, (size), __gu_err);	\
+	(x) = (__typeof__(*(ptr)))__gu_val;				\
+	__gu_err;							\
+})
+
+#define __put_user_nocheck(x,ptr,size)				\
+({								\
+	long __pu_err;						\
+	__typeof__(*(ptr)) __user *__pu_addr = (ptr);		\
+	__chk_user_ptr(ptr);					\
+	__put_user_size((x), __pu_addr, (size), __pu_err);	\
+	__pu_err;						\
+})
+
+#define __put_user_check(x,ptr,size)				\
+({								\
+	long __pu_err = -EFAULT;				\
+	__typeof__(*(ptr)) __user *__pu_addr = (ptr);		\
+	if (likely(access_ok(VERIFY_WRITE, __pu_addr, size)))	\
+		__put_user_size((x), __pu_addr, (size),		\
+				__pu_err);			\
+	__pu_err;						\
+})
+
 #ifdef CONFIG_SUPERH32
 # include "uaccess_32.h"
 #else
 # include "uaccess_64.h"
 #endif
 
+/* Generic arbitrary sized copy.  */
+/* Return the number of bytes NOT copied */
+__kernel_size_t __copy_user(void *to, const void *from, __kernel_size_t n);
+
+static __always_inline unsigned long
+__copy_from_user(void *to, const void __user *from, unsigned long n)
+{
+	return __copy_user(to, (__force void *)from, n);
+}
+
+static __always_inline unsigned long __must_check
+__copy_to_user(void __user *to, const void *from, unsigned long n)
+{
+	return __copy_user((__force void *)to, from, n);
+}
+
+#define __copy_to_user_inatomic __copy_to_user
+#define __copy_from_user_inatomic __copy_from_user
+
+/*
+ * Clear the area and return remaining number of bytes
+ * (on failure.  Usually it's 0.)
+ */
+__kernel_size_t __clear_user(void *addr, __kernel_size_t size);
+
+#define clear_user(addr,n)						\
+({									\
+	void __user * __cl_addr = (addr);				\
+	unsigned long __cl_size = (n);					\
+									\
+	if (__cl_size && access_ok(VERIFY_WRITE,			\
+		((unsigned long)(__cl_addr)), __cl_size))		\
+		__cl_size = __clear_user(__cl_addr, __cl_size);		\
+									\
+	__cl_size;							\
+})
+
+/**
+ * strncpy_from_user: - Copy a NUL terminated string from userspace.
+ * @dst:   Destination address, in kernel space.  This buffer must be at
+ *         least @count bytes long.
+ * @src:   Source address, in user space.
+ * @count: Maximum number of bytes to copy, including the trailing NUL.
+ *
+ * Copies a NUL-terminated string from userspace to kernel space.
+ *
+ * On success, returns the length of the string (not including the trailing
+ * NUL).
+ *
+ * If access to userspace fails, returns -EFAULT (some data may have been
+ * copied).
+ *
+ * If @count is smaller than the length of the string, copies @count bytes
+ * and returns @count.
+ */
+#define strncpy_from_user(dest,src,count)				\
+({									\
+	unsigned long __sfu_src = (unsigned long)(src);			\
+	int __sfu_count = (int)(count);					\
+	long __sfu_res = -EFAULT;					\
+									\
+	if (__access_ok(__sfu_src, __sfu_count))			\
+		__sfu_res = __strncpy_from_user((unsigned long)(dest),	\
+				__sfu_src, __sfu_count);		\
+									\
+	__sfu_res;							\
+})
+
 static inline unsigned long
 copy_from_user(void *to, const void __user *from, unsigned long n)
 {
@@ -31,4 +190,67 @@ copy_to_user(void __user *to, const void *from, unsigned long n)
 	return __copy_size;
 }
 
+/**
+ * strnlen_user: - Get the size of a string in user space.
+ * @s: The string to measure.
+ * @n: The maximum valid length
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * Get the size of a NUL-terminated string in user space.
+ *
+ * Returns the size of the string INCLUDING the terminating NUL.
+ * On exception, returns 0.
+ * If the string is too long, returns a value greater than @n.
+ */
+static inline long strnlen_user(const char __user *s, long n)
+{
+	if (!__addr_ok(s))
+		return 0;
+	else
+		return __strnlen_user(s, n);
+}
+
+/**
+ * strlen_user: - Get the size of a string in user space.
+ * @str: The string to measure.
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * Get the size of a NUL-terminated string in user space.
+ *
+ * Returns the size of the string INCLUDING the terminating NUL.
+ * On exception, returns 0.
+ *
+ * If there is a limit on the length of a valid string, you may wish to
+ * consider using strnlen_user() instead.
+ */
+#define strlen_user(str)	strnlen_user(str, ~0UL >> 1)
+
+/*
+ * The exception table consists of pairs of addresses: the first is the
+ * address of an instruction that is allowed to fault, and the second is
+ * the address at which the program should continue.  No registers are
+ * modified, so it is entirely up to the continuation code to figure out
+ * what to do.
+ *
+ * All the routines below use bits of fixup code that are out of line
+ * with the main instruction path.  This means when everything is well,
+ * we don't even have to jump over them.  Further, they do not intrude
+ * on our cache or tlb entries.
+ */
+struct exception_table_entry {
+	unsigned long insn, fixup;
+};
+
+#if defined(CONFIG_SUPERH64) && defined(CONFIG_MMU)
+#define ARCH_HAS_SEARCH_EXTABLE
+#endif
+
+int fixup_exception(struct pt_regs *regs);
+/* Returns 0 if exception not found and fixup.unit otherwise.  */
+unsigned long search_exception_table(unsigned long addr);
+const struct exception_table_entry *search_exception_tables(unsigned long addr);
+
+
 #endif /* __ASM_SH_UACCESS_H */

include/asm-sh/uaccess_32.h

@@ -12,56 +12,6 @@
 #ifndef __ASM_SH_UACCESS_32_H
 #define __ASM_SH_UACCESS_32_H
 
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <asm/segment.h>
-
-#define VERIFY_READ    0
-#define VERIFY_WRITE   1
-
-#define __addr_ok(addr) \
-	((unsigned long __force)(addr) < current_thread_info()->addr_limit.seg)
-
-/*
- * __access_ok: Check if address with size is OK or not.
- *
- * Uhhuh, this needs 33-bit arithmetic. We have a carry..
- *
- * sum := addr + size;  carry? --> flag = true;
- * if (sum >= addr_limit) flag = true;
- */
-#define __access_ok(addr, size)		\
-	(__addr_ok((addr) + (size)))
-#define access_ok(type, addr, size)	\
-	(__chk_user_ptr(addr),		\
-	 __access_ok((unsigned long __force)(addr), (size)))
-
-/*
- * Uh, these should become the main single-value transfer routines ...
- * They automatically use the right size if we just have the right
- * pointer type ...
- *
- * As SuperH uses the same address space for kernel and user data, we
- * can just do these as direct assignments.
- *
- * Careful to not
- * (a) re-use the arguments for side effects (sizeof is ok)
- * (b) require any knowledge of processes at this stage
- */
-#define put_user(x,ptr)		__put_user_check((x), (ptr), sizeof(*(ptr)))
-#define get_user(x,ptr)		__get_user_check((x), (ptr), sizeof(*(ptr)))
-
-/*
- * The "__xxx" versions do not do address space checking, useful when
- * doing multiple accesses to the same area (the user has to do the
- * checks by hand with "access_ok()")
- */
-#define __put_user(x,ptr)	__put_user_nocheck((x), (ptr), sizeof(*(ptr)))
-#define __get_user(x,ptr)	__get_user_nocheck((x), (ptr), sizeof(*(ptr)))
-
-struct __large_struct { unsigned long buf[100]; };
-#define __m(x) (*(struct __large_struct __user *)(x))
-
 #define __get_user_size(x,ptr,size,retval)			\
 do {								\
 	retval = 0;						\
@@ -81,28 +31,7 @@ do {								\
 	}							\
 } while (0)
 
-#define __get_user_nocheck(x,ptr,size)				\
-({								\
-	long __gu_err;						\
-	unsigned long __gu_val;					\
-	const __typeof__(*(ptr)) __user *__gu_addr = (ptr);	\
-	__chk_user_ptr(ptr);					\
-	__get_user_size(__gu_val, __gu_addr, (size), __gu_err);	\
-	(x) = (__typeof__(*(ptr)))__gu_val;			\
-	__gu_err;						\
-})
-
-#define __get_user_check(x,ptr,size)					\
-({									\
-	long __gu_err = -EFAULT;					\
-	unsigned long __gu_val = 0;					\
-	const __typeof__(*(ptr)) *__gu_addr = (ptr);			\
-	if (likely(access_ok(VERIFY_READ, __gu_addr, (size))))		\
-		__get_user_size(__gu_val, __gu_addr, (size), __gu_err);	\
-	(x) = (__typeof__(*(ptr)))__gu_val;				\
-	__gu_err;							\
-})
-
+#ifdef CONFIG_MMU
 #define __get_user_asm(x, addr, err, insn) \
 ({ \
 __asm__ __volatile__( \
@@ -123,6 +52,16 @@ __asm__ __volatile__( \
 	".previous" \
 	:"=&r" (err), "=&r" (x) \
 	:"m" (__m(addr)), "i" (-EFAULT), "0" (err)); })
+#else
+#define __get_user_asm(x, addr, err, insn)		\
+do {							\
+	__asm__ __volatile__ (				\
+		"mov." insn "	%1, %0\n\t"		\
+		: "=&r" (x)				\
+		: "m" (__m(addr))			\
+	);						\
+} while (0)
+#endif /* CONFIG_MMU */
 
 extern void __get_user_unknown(void);
 
@@ -147,28 +86,10 @@ do {							\
 	}						\
 } while (0)
 
-#define __put_user_nocheck(x,ptr,size)				\
-({								\
-	long __pu_err;						\
-	__typeof__(*(ptr)) __user *__pu_addr = (ptr);		\
-	__chk_user_ptr(ptr);					\
-	__put_user_size((x), __pu_addr, (size), __pu_err);	\
-	__pu_err;						\
-})
-
-#define __put_user_check(x,ptr,size)				\
-({								\
-	long __pu_err = -EFAULT;				\
-	__typeof__(*(ptr)) __user *__pu_addr = (ptr);		\
-	if (likely(access_ok(VERIFY_WRITE, __pu_addr, size)))	\
-		__put_user_size((x), __pu_addr, (size),		\
-				__pu_err);			\
-	__pu_err;						\
-})
-
+#ifdef CONFIG_MMU
 #define __put_user_asm(x, addr, err, insn)			\
-({ \
-__asm__ __volatile__( \
+do {								\
+	__asm__ __volatile__ (					\
 		"1:\n\t"					\
 		"mov." insn "	%1, %2\n\t"			\
 		"2:\n"						\
@@ -183,9 +104,23 @@ __asm__ __volatile__( \
 		".section	__ex_table,\"a\"\n\t"		\
 		".long	1b, 3b\n\t"				\
 		".previous"					\
-	:"=&r" (err) \
-	:"r" (x), "m" (__m(addr)), "i" (-EFAULT), "0" (err)	\
-        :"memory"); })
+		: "=&r" (err)					\
+		: "r" (x), "m" (__m(addr)), "i" (-EFAULT),	\
+		  "0" (err)					\
+		: "memory"					\
+	);							\
+} while (0)
+#else
+#define __put_user_asm(x, addr, err, insn)		\
+do {							\
+	__asm__ __volatile__ (				\
+		"mov." insn "	%0, %1\n\t"		\
+		: /* no outputs */			\
+		: "r" (x), "m" (__m(addr))		\
+		: "memory"				\
+	);						\
+} while (0)
+#endif /* CONFIG_MMU */
 
 #if defined(CONFIG_CPU_LITTLE_ENDIAN)
 #define __put_user_u64(val,addr,retval) \
@@ -235,40 +170,7 @@ __asm__ __volatile__( \
 
 extern void __put_user_unknown(void);
 
-/* Generic arbitrary sized copy.  */
-/* Return the number of bytes NOT copied */
-__kernel_size_t __copy_user(void *to, const void *from, __kernel_size_t n);
-
-
-static __always_inline unsigned long
-__copy_from_user(void *to, const void __user *from, unsigned long n)
-{
-	return __copy_user(to, (__force void *)from, n);
-}
-
-static __always_inline unsigned long __must_check
-__copy_to_user(void __user *to, const void *from, unsigned long n)
-{
-	return __copy_user((__force void *)to, from, n);
-}
-
-#define __copy_to_user_inatomic __copy_to_user
-#define __copy_from_user_inatomic __copy_from_user
-
-/*
- * Clear the area and return remaining number of bytes
- * (on failure.  Usually it's 0.)
- */
-extern __kernel_size_t __clear_user(void *addr, __kernel_size_t size);
-
-#define clear_user(addr,n) ({ \
-void * __cl_addr = (addr); \
-unsigned long __cl_size = (n); \
-if (__cl_size && __access_ok(((unsigned long)(__cl_addr)), __cl_size)) \
-__cl_size = __clear_user(__cl_addr, __cl_size); \
-__cl_size; })
-
-static __inline__ int
+static inline int
 __strncpy_from_user(unsigned long __dest, unsigned long __user __src, int __count)
 {
 	__kernel_size_t res;
@@ -307,37 +209,11 @@ __strncpy_from_user(unsigned long __dest, unsigned long __user __src, int __coun
 	return res;
 }
 
-/**
- * strncpy_from_user: - Copy a NUL terminated string from userspace.
- * @dst:   Destination address, in kernel space.  This buffer must be at
- *         least @count bytes long.
- * @src:   Source address, in user space.
- * @count: Maximum number of bytes to copy, including the trailing NUL.
- *
- * Copies a NUL-terminated string from userspace to kernel space.
- *
- * On success, returns the length of the string (not including the trailing
- * NUL).
- *
- * If access to userspace fails, returns -EFAULT (some data may have been
- * copied).
- *
- * If @count is smaller than the length of the string, copies @count bytes
- * and returns @count.
- */
-#define strncpy_from_user(dest,src,count) ({ \
-unsigned long __sfu_src = (unsigned long) (src); \
-int __sfu_count = (int) (count); \
-long __sfu_res = -EFAULT; \
-if(__access_ok(__sfu_src, __sfu_count)) { \
-__sfu_res = __strncpy_from_user((unsigned long) (dest), __sfu_src, __sfu_count); \
-} __sfu_res; })
-
 /*
  * Return the size of a string (including the ending 0 even when we have
  * exceeded the maximum string length).
  */
-static __inline__ long __strnlen_user(const char __user *__s, long __n)
+static inline long __strnlen_user(const char __user *__s, long __n)
 {
 	unsigned long res;
 	unsigned long __dummy;
@@ -369,61 +245,4 @@ static __inline__ long __strnlen_user(const char __user *__s, long __n)
 	return res;
 }
 
-/**
- * strnlen_user: - Get the size of a string in user space.
- * @s: The string to measure.
- * @n: The maximum valid length
- *
- * Context: User context only.  This function may sleep.
- *
- * Get the size of a NUL-terminated string in user space.
- *
- * Returns the size of the string INCLUDING the terminating NUL.
- * On exception, returns 0.
- * If the string is too long, returns a value greater than @n.
- */
-static __inline__ long strnlen_user(const char __user *s, long n)
-{
-	if (!__addr_ok(s))
-		return 0;
-	else
-		return __strnlen_user(s, n);
-}
-
-/**
- * strlen_user: - Get the size of a string in user space.
- * @str: The string to measure.
- *
- * Context: User context only.  This function may sleep.
- *
- * Get the size of a NUL-terminated string in user space.
- *
- * Returns the size of the string INCLUDING the terminating NUL.
- * On exception, returns 0.
- *
- * If there is a limit on the length of a valid string, you may wish to
- * consider using strnlen_user() instead.
- */
-#define strlen_user(str)	strnlen_user(str, ~0UL >> 1)
-
-/*
- * The exception table consists of pairs of addresses: the first is the
- * address of an instruction that is allowed to fault, and the second is
- * the address at which the program should continue.  No registers are
- * modified, so it is entirely up to the continuation code to figure out
- * what to do.
- *
- * All the routines below use bits of fixup code that are out of line
- * with the main instruction path.  This means when everything is well,
- * we don't even have to jump over them.  Further, they do not intrude
- * on our cache or tlb entries.
- */
-
-struct exception_table_entry
-{
-	unsigned long insn, fixup;
-};
-
-extern int fixup_exception(struct pt_regs *regs);
-
 #endif /* __ASM_SH_UACCESS_32_H */

include/asm-sh/uaccess_64.h

@@ -20,68 +20,6 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  */
-#include <linux/errno.h>
-#include <linux/sched.h>
-
-#define VERIFY_READ    0
-#define VERIFY_WRITE   1
-
-#define __addr_ok(addr) ((unsigned long)(addr) < (current_thread_info()->addr_limit.seg))
-
-/*
- * Uhhuh, this needs 33-bit arithmetic. We have a carry..
- *
- * sum := addr + size;  carry? --> flag = true;
- * if (sum >= addr_limit) flag = true;
- */
-#define __range_ok(addr,size) (((unsigned long) (addr) + (size) < (current_thread_info()->addr_limit.seg)) ? 0 : 1)
-
-#define access_ok(type,addr,size) (__range_ok(addr,size) == 0)
-#define __access_ok(addr,size) (__range_ok(addr,size) == 0)
-
-/*
- * Uh, these should become the main single-value transfer routines ...
- * They automatically use the right size if we just have the right
- * pointer type ...
- *
- * As MIPS uses the same address space for kernel and user data, we
- * can just do these as direct assignments.
- *
- * Careful to not
- * (a) re-use the arguments for side effects (sizeof is ok)
- * (b) require any knowledge of processes at this stage
- */
-#define put_user(x,ptr)	__put_user_check((x),(ptr),sizeof(*(ptr)))
-#define get_user(x,ptr) __get_user_check((x),(ptr),sizeof(*(ptr)))
-
-/*
- * The "__xxx" versions do not do address space checking, useful when
- * doing multiple accesses to the same area (the user has to do the
- * checks by hand with "access_ok()")
- */
-#define __put_user(x,ptr) __put_user_nocheck((x),(ptr),sizeof(*(ptr)))
-#define __get_user(x,ptr) __get_user_nocheck((x),(ptr),sizeof(*(ptr)))
-
-/*
- * The "xxx_ret" versions return constant specified in third argument, if
- * something bad happens. These macros can be optimized for the
- * case of just returning from the function xxx_ret is used.
- */
-
-#define put_user_ret(x,ptr,ret) ({ \
-if (put_user(x,ptr)) return ret; })
-
-#define get_user_ret(x,ptr,ret) ({ \
-if (get_user(x,ptr)) return ret; })
-
-#define __put_user_ret(x,ptr,ret) ({ \
-if (__put_user(x,ptr)) return ret; })
-
-#define __get_user_ret(x,ptr,ret) ({ \
-if (__get_user(x,ptr)) return ret; })
-
-struct __large_struct { unsigned long buf[100]; };
-#define __m(x) (*(struct __large_struct *)(x))
 
 #define __get_user_size(x,ptr,size,retval)			\
 do {								\
@@ -105,26 +43,6 @@ do {								\
 	}							\
 } while (0)
 
-#define __get_user_nocheck(x,ptr,size)				\
-({								\
-	long __gu_err, __gu_val;				\
-	__get_user_size((void *)&__gu_val, (long)(ptr),		\
-			(size), __gu_err);			\
-	(x) = (__typeof__(*(ptr)))__gu_val;			\
-	__gu_err;						\
-})
-
-#define __get_user_check(x,ptr,size)				\
-({								\
-	long __gu_addr = (long)(ptr);				\
-	long __gu_err = -EFAULT, __gu_val;			\
-	if (__access_ok(__gu_addr, (size)))			\
-		__get_user_size((void *)&__gu_val, __gu_addr,	\
-				(size), __gu_err);		\
-	(x) = (__typeof__(*(ptr))) __gu_val;			\
-	__gu_err;						\
-})
-
 extern long __get_user_asm_b(void *, long);
 extern long __get_user_asm_w(void *, long);
 extern long __get_user_asm_l(void *, long);
@@ -152,115 +70,10 @@ do {								\
 	}							\
 } while (0)
 
-#define __put_user_nocheck(x,ptr,size)				\
-({								\
-	long __pu_err;						\
-	__typeof__(*(ptr)) __pu_val = (x);			\
-	__put_user_size((void *)&__pu_val, (long)(ptr), (size), __pu_err); \
-	__pu_err;						\
-})
-
-#define __put_user_check(x,ptr,size)				\
-({								\
-	long __pu_err = -EFAULT;				\
-	long __pu_addr = (long)(ptr);				\
-	__typeof__(*(ptr)) __pu_val = (x);			\
-								\
-	if (__access_ok(__pu_addr, (size)))			\
-		__put_user_size((void *)&__pu_val, __pu_addr, (size), __pu_err);\
-	__pu_err;						\
-})
-
 extern long __put_user_asm_b(void *, long);
 extern long __put_user_asm_w(void *, long);
 extern long __put_user_asm_l(void *, long);
 extern long __put_user_asm_q(void *, long);
 extern void __put_user_unknown(void);
 
-
-/* Generic arbitrary sized copy.  */
-/* Return the number of bytes NOT copied */
-/* XXX: should be such that: 4byte and the rest. */
-extern __kernel_size_t __copy_user(void *__to, const void *__from, __kernel_size_t __n);
-
-#define copy_to_user_ret(to,from,n,retval) ({ \
-if (copy_to_user(to,from,n)) \
-	return retval; \
-})
-
-#define __copy_to_user(to,from,n)		\
-	__copy_user((void *)(to),		\
-		    (void *)(from), n)
-
-#define __copy_to_user_ret(to,from,n,retval) ({ \
-if (__copy_to_user(to,from,n)) \
-	return retval; \
-})
-
-#define copy_from_user_ret(to,from,n,retval) ({ \
-if (copy_from_user(to,from,n)) \
-	return retval; \
-})
-
-#define __copy_from_user(to,from,n)		\
-	__copy_user((void *)(to),		\
-		    (void *)(from), n)
-
-#define __copy_from_user_ret(to,from,n,retval) ({ \
-if (__copy_from_user(to,from,n)) \
-	return retval; \
-})
-
-#define __copy_to_user_inatomic __copy_to_user
-#define __copy_from_user_inatomic __copy_from_user
-
-/* XXX: Not sure it works well..
-   should be such that: 4byte clear and the rest. */
-extern __kernel_size_t __clear_user(void *addr, __kernel_size_t size);
-
-#define clear_user(addr,n) ({ \
-void * __cl_addr = (addr); \
-unsigned long __cl_size = (n); \
-if (__cl_size && __access_ok(((unsigned long)(__cl_addr)), __cl_size)) \
-__cl_size = __clear_user(__cl_addr, __cl_size); \
-__cl_size; })
-
-extern int __strncpy_from_user(unsigned long __dest, unsigned long __src, int __count);
-
-#define strncpy_from_user(dest,src,count) ({ \
-unsigned long __sfu_src = (unsigned long) (src); \
-int __sfu_count = (int) (count); \
-long __sfu_res = -EFAULT; \
-if(__access_ok(__sfu_src, __sfu_count)) { \
-__sfu_res = __strncpy_from_user((unsigned long) (dest), __sfu_src, __sfu_count); \
-} __sfu_res; })
-
-#define strlen_user(str) strnlen_user(str, ~0UL >> 1)
-
-/*
- * Return the size of a string (including the ending 0!)
- */
-extern long __strnlen_user(const char *__s, long __n);
-
-static inline long strnlen_user(const char *s, long n)
-{
-	if (!__addr_ok(s))
-		return 0;
-	else
-		return __strnlen_user(s, n);
-}
-
-struct exception_table_entry
-{
-	unsigned long insn, fixup;
-};
-
-#ifdef CONFIG_MMU
-#define ARCH_HAS_SEARCH_EXTABLE
-#endif
-
-/* Returns 0 if exception not found and fixup.unit otherwise.  */
-extern unsigned long search_exception_table(unsigned long addr);
-extern const struct exception_table_entry *search_exception_tables (unsigned long addr);
-
 #endif /* __ASM_SH_UACCESS_64_H */