1 /* SPDX-License-Identifier: GPL-2.0 */
17 #include <asm-generic/access_ok.h>
30 static inline bool __chk_range_not_ok(unsigned long addr, unsigned long size, unsigned long limit)  in __chk_range_not_ok()  argument
33 		return addr > limit - size;  in __chk_range_not_ok()
35 	addr += size;  in __chk_range_not_ok()
36 	if (addr < size)  in __chk_range_not_ok()
39 	return addr > limit;  in __chk_range_not_ok()
42 #define __range_not_ok(addr, size, limit)                               \  argument
44 	__chk_user_ptr(addr);                                           \
45 	__chk_range_not_ok((unsigned long __force)(addr), size, limit); \
50 /* Uh, these should become the main single-value transfer routines..
79 	type *addr = (type __force *)(dst);				\
80 	type data = *(type *)src;					\
83 	case 1: __put_kernel_asm(data, b, addr, __pu_ret); break;	\
84 	case 2: __put_kernel_asm(data, h, addr, __pu_ret); break;	\
85 	case 4: __put_kernel_asm(data, w, addr, __pu_ret); break;	\
86 	case 8: __put_kernel_asm(data, x, addr, __pu_ret); break;	\
93 #define __put_kernel_asm(x, size, addr, ret)				\  argument
110 	       : "=r" (ret) : "r" (x), "r" (__m(addr)),			\
111 		 "i" (-EFAULT))
113 #define __put_user_nocheck(data, addr, size) ({			\  argument
116 	case 1: __put_user_asm(data, b, addr, __pu_ret); break;	\
117 	case 2: __put_user_asm(data, h, addr, __pu_ret); break;	\
118 	case 4: __put_user_asm(data, w, addr, __pu_ret); break;	\
119 	case 8: __put_user_asm(data, x, addr, __pu_ret); break;	\
125 #define __put_user_asm(x, size, addr, ret)				\  argument
142 	       : "=r" (ret) : "r" (x), "r" (__m(addr)),			\
143 		 "i" (-EFAULT))
149 	type *addr = (type __force *)(src);		     		     \
153 		case 1: __get_kernel_asm(__gu_val, ub, addr, __gu_ret); break; \
154 		case 2: __get_kernel_asm(__gu_val, uh, addr, __gu_ret); break; \
155 		case 4: __get_kernel_asm(__gu_val, uw, addr, __gu_ret); break; \
156 		case 8: __get_kernel_asm(__gu_val, x, addr, __gu_ret); break;  \
166 #define __get_kernel_asm(x, size, addr, ret)				\  argument
184 	       : "=r" (ret), "=r" (x) : "r" (__m(addr)),		\
185 		 "i" (-EFAULT))
187 #define __get_user_nocheck(data, addr, size, type) ({			     \  argument
191 		case 1: __get_user_asm(__gu_val, ub, addr, __gu_ret); break; \
192 		case 2: __get_user_asm(__gu_val, uh, addr, __gu_ret); break; \
193 		case 4: __get_user_asm(__gu_val, uw, addr, __gu_ret); break; \
194 		case 8: __get_user_asm(__gu_val, x, addr, __gu_ret); break;  \
200 	data = (__force type) __gu_val;					     \
204 #define __get_user_asm(x, size, addr, ret)				\  argument
222 	       : "=r" (ret), "=r" (x) : "r" (__m(addr)),		\
223 		 "i" (-EFAULT))