101 	int i, start, mid, end, mask;  in do_csum()  local
113 	mid = len - start;  in do_csum()
114 	end = mid & 0xF;  in do_csum()
115 	mid = mid>>4;  in do_csum()
116 	sum0 = mid << 18;  in do_csum()
141 	if (mid) {  in do_csum()
144 		if (mid > 1)  in do_csum()
145 			for (i = 0; i < mid-1; i++) {  in do_csum()
161 	ptr4 = (unsigned int *) &ptr[start + (mid * 16) + (end & 8)];  in do_csum()
168 	ptr2 = (unsigned short *) &ptr[start + (mid * 16) + (end & 12)];  in do_csum()
173 		sum1 += (u64) ptr[start + (mid * 16) + (end & 14)];  in do_csum()
175 	ptr8 = (u64 *) &ptr[start + (mid * 16)];  in do_csum()