15 #define copy_from_kernel_nofault_loop(dst, src, len, type, err_label)	\  argument
17 		__get_kernel_nofault(dst, src, type, err_label);		\
19 		src += sizeof(type);					\
23 long copy_from_kernel_nofault(void *dst, const void *src, size_t size)  in copy_from_kernel_nofault()  argument
28 		align = (unsigned long)dst | (unsigned long)src;  in copy_from_kernel_nofault()
30 	if (!copy_from_kernel_nofault_allowed(src, size))  in copy_from_kernel_nofault()
35 		copy_from_kernel_nofault_loop(dst, src, size, u64, Efault);  in copy_from_kernel_nofault()
37 		copy_from_kernel_nofault_loop(dst, src, size, u32, Efault);  in copy_from_kernel_nofault()
39 		copy_from_kernel_nofault_loop(dst, src, size, u16, Efault);  in copy_from_kernel_nofault()
40 	copy_from_kernel_nofault_loop(dst, src, size, u8, Efault);  in copy_from_kernel_nofault()
49 #define copy_to_kernel_nofault_loop(dst, src, len, type, err_label)	\  argument
51 		__put_kernel_nofault(dst, src, type, err_label);		\
53 		src += sizeof(type);					\
57 long copy_to_kernel_nofault(void *dst, const void *src, size_t size)  in copy_to_kernel_nofault()  argument
62 		align = (unsigned long)dst | (unsigned long)src;  in copy_to_kernel_nofault()
66 		copy_to_kernel_nofault_loop(dst, src, size, u64, Efault);  in copy_to_kernel_nofault()
68 		copy_to_kernel_nofault_loop(dst, src, size, u32, Efault);  in copy_to_kernel_nofault()
70 		copy_to_kernel_nofault_loop(dst, src, size, u16, Efault);  in copy_to_kernel_nofault()
71 	copy_to_kernel_nofault_loop(dst, src, size, u8, Efault);  in copy_to_kernel_nofault()
81 	const void *src = unsafe_addr;  in strncpy_from_kernel_nofault()  local
90 		__get_kernel_nofault(dst, src, u8, Efault);  in strncpy_from_kernel_nofault()
92 		src++;  in strncpy_from_kernel_nofault()
93 	} while (dst[-1] && src - unsafe_addr < count);  in strncpy_from_kernel_nofault()
97 	return src - unsafe_addr;  in strncpy_from_kernel_nofault()
107  * @src: address to read from. This must be a user address.
110  * Safely read from user address @src to the buffer at @dst. If a kernel fault
113 long copy_from_user_nofault(void *dst, const void __user *src, size_t size)  in copy_from_user_nofault()  argument
116 	if (access_ok(src, size)) {  in copy_from_user_nofault()
118 		ret = __copy_from_user_inatomic(dst, src, size);  in copy_from_user_nofault()
131  * @src: pointer to the data that shall be written
134  * Safely write to address @dst from the buffer at @src.  If a kernel fault
137 long copy_to_user_nofault(void __user *dst, const void *src, size_t size)  in copy_to_user_nofault()  argument
143 		ret = __copy_to_user_inatomic(dst, src, size);  in copy_to_user_nofault()