pcsum 63 net/ipv4/gre_offload.c __sum16 *pcsum; pcsum 83 net/ipv4/gre_offload.c pcsum = (__sum16 *)(greh + 1); pcsum 95 net/ipv4/gre_offload.c *pcsum = ~csum_fold((__force __wsum)htonl(partial_adj)); pcsum 97 net/ipv4/gre_offload.c *pcsum = 0; pcsum 100 net/ipv4/gre_offload.c *(pcsum + 1) = 0; pcsum 101 net/ipv4/gre_offload.c *pcsum = gso_make_checksum(skb, 0);