diff options
Diffstat (limited to 'include/asm-x86/uaccess_64.h')
| -rw-r--r-- | include/asm-x86/uaccess_64.h | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/include/asm-x86/uaccess_64.h b/include/asm-x86/uaccess_64.h index e0875d7ae89..42a9769687e 100644 --- a/include/asm-x86/uaccess_64.h +++ b/include/asm-x86/uaccess_64.h @@ -57,49 +57,6 @@ extern void __put_user_bad(void); __pu_err; \ }) -#define __get_user_nocheck(x, ptr, size) \ -({ \ - int __gu_err; \ - unsigned long __gu_val; \ - __get_user_size(__gu_val, (ptr), (size), __gu_err, -EFAULT);\ - (x) = (__force typeof(*(ptr)))__gu_val; \ - __gu_err; \ -}) - -#define __get_user_size(x, ptr, size, retval, errret) \ -do { \ - retval = 0; \ - __chk_user_ptr(ptr); \ - switch (size) { \ - case 1: \ - __get_user_asm(x, ptr, retval, "b", "b", "=q", errret);\ - break; \ - case 2: \ - __get_user_asm(x, ptr, retval, "w", "w", "=r", errret);\ - break; \ - case 4: \ - __get_user_asm(x, ptr, retval, "l", "k", "=r", errret);\ - break; \ - case 8: \ - __get_user_asm(x, ptr, retval, "q", "", "=r", errret); \ - break; \ - default: \ - (x) = __get_user_bad(); \ - } \ -} while (0) - -#define __get_user_asm(x, addr, err, itype, rtype, ltype, errno) \ - asm volatile("1: mov"itype" %2,%"rtype"1\n" \ - "2:\n" \ - ".section .fixup, \"ax\"\n" \ - "3: mov %3,%0\n" \ - " xor"itype" %"rtype"1,%"rtype"1\n" \ - " jmp 2b\n" \ - ".previous\n" \ - _ASM_EXTABLE(1b, 3b) \ - : "=r" (err), ltype (x) \ - : "m" (__m(addr)), "i"(errno), "0"(err)) - /* * Copy To/From Userspace */ |