NETDEBUG(printk(KERN_DEBUG "pmtu discovery on SA IPCOMP/%08x/%u.%u.%u.%u\n", spi, NIPQUAD(iph->daddr))); 
NETDEBUG(KERN_DEBUG "pmtu discovery on SA IPCOMP/%08x/%u.%u.%u.%u\n", spi, NIPQUAD(iph->daddr)); 
static void ipcomp4_err(struct sk_buff *skb, u32 info){	u32 spi;	struct iphdr *iph = (struct iphdr *)skb->data;	struct ip_comp_hdr *ipch = (struct ip_comp_hdr *)(skb->data+(iph->ihl<<2));	struct xfrm_state *x;	if (skb->h.icmph->type != ICMP_DEST_UNREACH ||	    skb->h.icmph->code != ICMP_FRAG_NEEDED)		return;	spi = ntohl(ntohs(ipch->cpi));	x = xfrm_state_lookup((xfrm_address_t *)&iph->daddr,	                      spi, IPPROTO_COMP, AF_INET);	if (!x)		return;	NETDEBUG(printk(KERN_DEBUG "pmtu discovery on SA IPCOMP/%08x/%u.%u.%u.%u\n",	       spi, NIPQUAD(iph->daddr)));	xfrm_state_put(x);}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/64ce207306debd7157f47282be94770407bec01c/ipcomp.c/buggy/net/ipv4/ipcomp.c