x86: merge __put_user_asm and its user.

Move both __put_user_asm and __put_user_size to
uaccess.h. i386 already had a special function for 64-bit access,
so for x86_64, we just define a macro with the same name.
Note that for X86_64, CONFIG_X86_WP_WORKS_OK will always
be defined, so the #else part will never be even compiled in.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 0 insertions, 77 deletions

diff --git a/include/asm-x86/uaccess_32.h b/include/asm-x86/uaccess_32.h
index 4c47a5ba65e3..fab755781b9b 100644
--- a/include/asm-x86/uaccess_32.h
+++ b/include/asm-x86/uaccess_32.h
@@ -145,83 +145,6 @@ extern void __put_user_8(void);
 #define __put_user(x, ptr)                                              \
         __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
 
-#define __put_user_nocheck(x, ptr, size)                        \
-({                                                              \
-        long __pu_err;                                          \
-        __put_user_size((x), (ptr), (size), __pu_err, -EFAULT); \
-        __pu_err;                                               \
-})
-
-
-#define __put_user_u64(x, addr, err)                                    \
-        asm volatile("1:        movl %%eax,0(%2)\n"                     \
-                     "2:        movl %%edx,4(%2)\n"                     \
-                     "3:\n"                                             \
-                     ".section .fixup,\"ax\"\n"                         \
-                     "4:        movl %3,%0\n"                           \
-                     "  jmp 3b\n"                                       \
-                     ".previous\n"                                      \
-                     _ASM_EXTABLE(1b, 4b)                               \
-                     _ASM_EXTABLE(2b, 4b)                               \
-                     : "=r" (err)                                       \
-                     : "A" (x), "r" (addr), "i" (-EFAULT), "0" (err))
-
-#ifdef CONFIG_X86_WP_WORKS_OK
-
-#define __put_user_size(x, ptr, size, retval, errret)                   \
-do {                                                                    \
-        retval = 0;                                                     \
-        __chk_user_ptr(ptr);                                            \
-        switch (size) {                                                 \
-        case 1:                                                         \
-                __put_user_asm(x, ptr, retval, "b", "b", "iq", errret); \
-                break;                                                  \
-        case 2:                                                         \
-                __put_user_asm(x, ptr, retval, "w", "w", "ir", errret); \
-                break;                                                  \
-        case 4:                                                         \
-                __put_user_asm(x, ptr, retval, "l", "k",  "ir", errret);\
-                break;                                                  \
-        case 8:                                                         \
-                __put_user_u64((__typeof__(*ptr))(x), ptr, retval);     \
-                break;                                                  \
-        default:                                                        \
-                __put_user_bad();                                       \
-        }                                                               \
-} while (0)
-
-#else
-
-#define __put_user_size(x, ptr, size, retval, errret)                   \
-do {                                                                    \
-        __typeof__(*(ptr))__pus_tmp = x;                                \
-        retval = 0;                                                     \
-                                                                        \
-        if (unlikely(__copy_to_user_ll(ptr, &__pus_tmp, size) != 0))    \
-                retval = errret;                                        \
-} while (0)
-
-#endif
-struct __large_struct { unsigned long buf[100]; };
-#define __m(x) (*(struct __large_struct __user *)(x))
-
-/*
- * Tell gcc we read from memory instead of writing: this is because
- * we do not write to any memory gcc knows about, so there are no
- * aliasing issues.
- */
-#define __put_user_asm(x, addr, err, itype, rtype, ltype, errret)       \
-        asm volatile("1:        mov"itype" %"rtype"1,%2\n"              \
-                     "2:\n"                                             \
-                     ".section .fixup,\"ax\"\n"                         \
-                     "3:        movl %3,%0\n"                           \
-                     "  jmp 2b\n"                                       \
-                     ".previous\n"                                      \
-                     _ASM_EXTABLE(1b, 3b)                               \
-                     : "=r"(err)                                        \
-                     : ltype (x), "m" (__m(addr)), "i" (errret), "0" (err))
-
-
 #define __get_user_nocheck(x, ptr, size)                                \
 ({                                                                      \
         long __gu_err;                                                  \