Symbol: IPSKB_FRAG_PMTU
net/ipv4/ip_fragment.c
447
IPCB(skb)->flags |= IPSKB_FRAG_PMTU;
net/ipv4/ip_output.c
894
ip_frag_init(skb, hlen, ll_rs, mtu, IPCB(skb)->flags & IPSKB_FRAG_PMTU,