csum_unfold       125 include/net/checksum.h 	*sum = csum_fold(csum_add(csum_sub(~csum_unfold(*sum), from), to));
csum_unfold        46 include/net/ip6_checksum.h 	return ~csum_unfold(csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
csum_unfold        55 include/net/ip6_checksum.h 	return ~csum_unfold(csum_ipv6_magic(&iph->saddr, &iph->daddr,