taglinefilesource code
doff275drivers/net/slhc.chlen = ip->ihl*4 + th->doff*4;
doff362drivers/net/slhc.c|| th->doff != cs->cs_tcp.doff
doff364drivers/net/slhc.c|| (th->doff > 5 && memcmp(th+1,cs->cs_tcpopt,((th->doff)-5)*4) != 0)){
doff485drivers/net/slhc.cif (th->doff > 5)
doff486drivers/net/slhc.cmemcpy(cs->cs_tcpopt, th+1, ((th->doff) - 5) * 4);
doff550drivers/net/slhc.chdrlen = ip->ihl * 4 + thp->doff * 4;
doff637drivers/net/slhc.cif (thp->doff > 5) {
doff638drivers/net/slhc.cmemcpy(cp, cs->cs_tcpopt, ((thp->doff) - 5) * 4);
doff639drivers/net/slhc.ccp += ((thp->doff) - 5) * 4;
doff689drivers/net/slhc.cif (cs->cs_tcp.doff > 5)
doff690drivers/net/slhc.cmemcpy(cs->cs_tcpopt, icp + ihl*4 + sizeof(struct tcphdr), (cs->cs_tcp.doff - 5) * 4);
doff691drivers/net/slhc.ccs->cs_hsize = ihl*2 + cs->cs_tcp.doff*2;
doff31include/linux/tcp.hdoff:4,
doff40include/linux/tcp.h__u16  doff:4,
doff728net/ipv4/af_inet.csk->dummy_th.doff = sizeof(sk->dummy_th)/4;
doff1369net/ipv4/tcp.cskb->h.seq = ntohl(th->seq) + size - 4*th->doff;
doff1610net/ipv4/tcp.ct1->doff = sizeof(*t1)/4;
doff1629net/ipv4/tcp.cth->doff = sizeof(*th)/4;
doff2061net/ipv4/tcp.ct1->doff = sizeof(*t1)/4;
doff2395net/ipv4/tcp.cskb->h.th->doff*4 + offset, used);
doff2578net/ipv4/tcp.ct1->doff = sizeof(*t1)/4;
doff2768net/ipv4/tcp.ct1->doff = sizeof(*t1)/4;
doff2789net/ipv4/tcp.cint length=(th->doff*4)-sizeof(struct tcphdr);
doff3007net/ipv4/tcp.cnewsk->dummy_th.doff = 6;
doff3133net/ipv4/tcp.ct1->doff = sizeof(*t1)/4+1;
doff3397net/ipv4/tcp.cif (len != th->doff*4) 
doff4020net/ipv4/tcp.cskb_pull(skb,th->doff*4);
doff4021net/ipv4/tcp.cskb_trim(skb,len-(th->doff*4));
doff4393net/ipv4/tcp.cptr = sk->urg_seq - th->seq + th->doff*4;
doff4562net/ipv4/tcp.ct1->doff = 6;
doff4637net/ipv4/tcp.cnext_seq = len - 4*th->doff;
doff5191net/ipv4/tcp.cbuff = sk->prot->wmalloc(sk, win_size + th->doff * 4 + 
doff5227net/ipv4/tcp.cnth = (struct tcphdr *) skb_put(buff,th->doff*4);
doff5229net/ipv4/tcp.cmemcpy(nth, th, th->doff * 4);
doff5245net/ipv4/tcp.c(iph->ihl << 2) + th->doff * 4;
doff5296net/ipv4/tcp.cnth->doff * 4 + win_size , sk);
doff5339net/ipv4/tcp.ct1->doff = sizeof(*t1)/4;