kill uaccess_try()

finally

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

arch/x86/include/asm/uaccess.h

@@ -193,23 +193,12 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
 		     : : "A" (x), "r" (addr)			\
 		     : : label)
 
-#define __put_user_asm_ex_u64(x, addr)					\
-	asm volatile("\n"						\
-		     "1:	movl %%eax,0(%1)\n"			\
-		     "2:	movl %%edx,4(%1)\n"			\
-		     "3:"						\
-		     _ASM_EXTABLE_EX(1b, 2b)				\
-		     _ASM_EXTABLE_EX(2b, 3b)				\
-		     : : "A" (x), "r" (addr))
-
 #define __put_user_x8(x, ptr, __ret_pu)				\
 	asm volatile("call __put_user_8" : "=a" (__ret_pu)	\
 		     : "A" ((typeof(*(ptr)))(x)), "c" (ptr) : "ebx")
 #else
 #define __put_user_goto_u64(x, ptr, label) \
 	__put_user_goto(x, ptr, "q", "", "er", label)
-#define __put_user_asm_ex_u64(x, addr)	\
-	__put_user_asm_ex(x, addr, "q", "", "er")
 #define __put_user_x8(x, ptr, __ret_pu) __put_user_x(8, x, ptr, __ret_pu)
 #endif
 
@@ -289,31 +278,6 @@ do {									\
 	}								\
 } while (0)
 
-/*
- * This doesn't do __uaccess_begin/end - the exception handling
- * around it must do that.
- */
-#define __put_user_size_ex(x, ptr, size)				\
-do {									\
-	__chk_user_ptr(ptr);						\
-	switch (size) {							\
-	case 1:								\
-		__put_user_asm_ex(x, ptr, "b", "b", "iq");		\
-		break;							\
-	case 2:								\
-		__put_user_asm_ex(x, ptr, "w", "w", "ir");		\
-		break;							\
-	case 4:								\
-		__put_user_asm_ex(x, ptr, "l", "k", "ir");		\
-		break;							\
-	case 8:								\
-		__put_user_asm_ex_u64((__typeof__(*ptr))(x), ptr);	\
-		break;							\
-	default:							\
-		__put_user_bad();					\
-	}								\
-} while (0)
-
 #ifdef CONFIG_X86_32
 #define __get_user_asm_u64(x, ptr, retval, errret)			\
 ({									\
@@ -430,29 +394,6 @@ struct __large_struct { unsigned long buf[100]; };
 	retval = __put_user_failed(x, addr, itype, rtype, ltype, errret);	\
 } while (0)
 
-#define __put_user_asm_ex(x, addr, itype, rtype, ltype)			\
-	asm volatile("1:	mov"itype" %"rtype"0,%1\n"		\
-		     "2:\n"						\
-		     _ASM_EXTABLE_EX(1b, 2b)				\
-		     : : ltype(x), "m" (__m(addr)))
-
-/*
- * uaccess_try and catch
- */
-#define uaccess_try	do {						\
-	current->thread.uaccess_err = 0;				\
-	__uaccess_begin();						\
-	barrier();
-
-#define uaccess_try_nospec do {						\
-	current->thread.uaccess_err = 0;				\
-	__uaccess_begin_nospec();					\
-
-#define uaccess_catch(err)						\
-	__uaccess_end();						\
-	(err) |= (current->thread.uaccess_err ? -EFAULT : 0);		\
-} while (0)
-
 /**
  * __get_user - Get a simple variable from user space, with less checking.
  * @x:   Variable to store result.
@@ -502,12 +443,6 @@ struct __large_struct { unsigned long buf[100]; };
 #define __put_user(x, ptr)						\
 	__put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
 
-#define put_user_try		uaccess_try
-#define put_user_catch(err)	uaccess_catch(err)
-
-#define put_user_ex(x, ptr)						\
-	__put_user_size_ex((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
-
 extern unsigned long
 copy_from_user_nmi(void *to, const void __user *from, unsigned long n);
 extern __must_check long