29 	unsigned int csum;  in csum_and_copy_from_user()  local
36 		csum = 0;  in csum_and_copy_from_user()
42 		csum = (__force unsigned int)sum;  in csum_and_copy_from_user()
46 	csum = csum_partial_copy_generic((void __force *)src, dst,  in csum_and_copy_from_user()
59 		csum = csum_partial(dst, len, sum);  in csum_and_copy_from_user()
63 	return (__force __wsum)csum;  in csum_and_copy_from_user()
70 	unsigned int csum;  in csum_and_copy_to_user()  local
77 		csum = 0;  in csum_and_copy_to_user()
83 		csum = -1; /* invalid checksum */  in csum_and_copy_to_user()
87 	csum = csum_partial_copy_generic(src, (void __force *)dst,  in csum_and_copy_to_user()
91 		csum = csum_partial(src, len, sum);  in csum_and_copy_to_user()
95 			csum = -1; /* invalid checksum */  in csum_and_copy_to_user()
100 	return (__force __wsum)csum;  in csum_and_copy_to_user()