317 		u64 diff;  in vli_sub()  local
319 		diff = left[i] - right[i] - borrow;  in vli_sub()
320 		if (diff != left[i])  in vli_sub()
321 			borrow = (diff > left[i]);  in vli_sub()
323 		result[i] = diff;  in vli_sub()
338 		u64 diff;  in vli_usub()  local
340 		diff = left[i] - borrow;  in vli_usub()
341 		if (diff != left[i])  in vli_usub()
342 			borrow = (diff > left[i]);  in vli_usub()
344 		result[i] = diff;  in vli_usub()
640 			u64 diff = v[i][j] - mod_m[j] - borrow;  in vli_mmod_slow()  local
642 			if (diff != v[i][j])  in vli_mmod_slow()
643 				borrow = (diff > v[i][j]);  in vli_mmod_slow()
644 			v[1 - i][j] = diff;  in vli_mmod_slow()