sh: Initial consolidation of the _32/_64 uaccess split.
authorPaul Mundt <lethal@linux-sh.org>
Tue, 3 Jun 2008 11:05:39 +0000 (20:05 +0900)
committerPaul Mundt <lethal@linux-sh.org>
Mon, 28 Jul 2008 09:10:29 +0000 (18:10 +0900)
This consolidates everything but the bare assembly routines, which we
will sync up in a follow-up patch.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
include/asm-sh/uaccess.h
include/asm-sh/uaccess_32.h
include/asm-sh/uaccess_64.h

index b3440c305b5d844cf58312e0654c3d515798d761..45c2c9b2993d7ad3b33720966e4a07ddb98d85c2 100644 (file)
 #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 */
index 44abd16823294209279499f8f8f3384c093ddb2f..ae0d24f6653f8ee1979d4d369b5e8fac9480beb1 100644 (file)
 #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);
 
@@ -147,45 +86,41 @@ 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;                                               \
-})
-
-#define __put_user_asm(x, addr, err, insn) \
-({ \
-__asm__ __volatile__( \
-       "1:\n\t" \
-       "mov." insn "   %1, %2\n\t" \
-       "2:\n" \
-       ".section       .fixup,\"ax\"\n" \
-       "3:\n\t" \
-       "mov.l  4f, %0\n\t" \
-       "jmp    @%0\n\t" \
-       " mov   %3, %0\n\t" \
-       ".balign        4\n" \
-       "4:     .long   2b\n\t" \
-       ".previous\n" \
-       ".section       __ex_table,\"a\"\n\t" \
-       ".long  1b, 3b\n\t" \
-       ".previous" \
-       :"=&r" (err) \
-       :"r" (x), "m" (__m(addr)), "i" (-EFAULT), "0" (err)     \
-        :"memory"); })
+#ifdef CONFIG_MMU
+#define __put_user_asm(x, addr, err, insn)                     \
+do {                                                           \
+       __asm__ __volatile__ (                                  \
+               "1:\n\t"                                        \
+               "mov." insn "   %1, %2\n\t"                     \
+               "2:\n"                                          \
+               ".section       .fixup,\"ax\"\n"                \
+               "3:\n\t"                                        \
+               "mov.l  4f, %0\n\t"                             \
+               "jmp    @%0\n\t"                                \
+               " mov   %3, %0\n\t"                             \
+               ".balign        4\n"                            \
+               "4:     .long   2b\n\t"                         \
+               ".previous\n"                                   \
+               ".section       __ex_table,\"a\"\n\t"           \
+               ".long  1b, 3b\n\t"                             \
+               ".previous"                                     \
+               : "=&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 */
index 5833754dc747d5389f43e36ee180edc3e27be452..81b3d515fcb36920938de61b13412a0d75e95fe4 100644 (file)
  * 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);
 
-\f
-/* 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 */