diff options
Diffstat (limited to 'arch/x86/include/asm/uaccess.h')
| -rw-r--r-- | arch/x86/include/asm/uaccess.h | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h index d42252ce9b4d..b8c75f3aade8 100644 --- a/arch/x86/include/asm/uaccess.h +++ b/arch/x86/include/asm/uaccess.h @@ -332,7 +332,7 @@ do { \ #define __get_user_asm_u64(x, ptr, retval, errret) \ __get_user_asm(x, ptr, retval, "q", "", "=r", errret) #define __get_user_asm_ex_u64(x, ptr) \ - __get_user_asm_ex(x, ptr, "q", "", "=r") + __get_user_asm_ex(x, ptr, "q", "", "=&r") #endif #define __get_user_size(x, ptr, size, retval, errret) \ @@ -375,13 +375,13 @@ do { \ __chk_user_ptr(ptr); \ switch (size) { \ case 1: \ - __get_user_asm_ex(x, ptr, "b", "b", "=q"); \ + __get_user_asm_ex(x, ptr, "b", "b", "=&q"); \ break; \ case 2: \ - __get_user_asm_ex(x, ptr, "w", "w", "=r"); \ + __get_user_asm_ex(x, ptr, "w", "w", "=&r"); \ break; \ case 4: \ - __get_user_asm_ex(x, ptr, "l", "k", "=r"); \ + __get_user_asm_ex(x, ptr, "l", "k", "=&r"); \ break; \ case 8: \ __get_user_asm_ex_u64(x, ptr); \ @@ -394,12 +394,8 @@ do { \ #define __get_user_asm_ex(x, addr, itype, rtype, ltype) \ asm volatile("1: mov"itype" %1,%"rtype"0\n" \ "2:\n" \ - ".section .fixup,\"ax\"\n" \ - "3:xor"itype" %"rtype"0,%"rtype"0\n" \ - " jmp 2b\n" \ - ".previous\n" \ - _ASM_EXTABLE_EX(1b, 3b) \ - : ltype(x) : "m" (__m(addr))) + _ASM_EXTABLE_EX(1b, 2b) \ + : ltype(x) : "m" (__m(addr)), "0" (0)) #define __put_user_nocheck(x, ptr, size) \ ({ \ |