csum2
uint16_t csum1, csum2;
csum2 = 0;
axe_cmd(sc, AXE_772B_CMD_WRITE_TXCSUM, csum2, csum1, NULL);
csum2 = 0;
axe_cmd(sc, AXE_772B_CMD_WRITE_RXCSUM, csum2, csum1, NULL);
uint16_t csum1, csum2;
csum2 = le16toh(cur_desc->sk_csum2);
sk_rxcsum(ifp, m, csum1, csum2);
const uint16_t csum1, const uint16_t csum2)
iph_csum = in_addword(csum1, (~csum2 & 0xffff));
ipd_csum = in_addword(csum2, (~ipo_csum & 0xffff));
ipd_csum = csum2;
cfncn = csum2;
int csum2(int, uint32_t *, off_t *);