88 	    unsigned int mtu,
250 				struct sk_buff *skb, unsigned int mtu)  in ip_finish_output_gso()  argument
258 	if (skb_gso_validate_network_len(skb, mtu))  in ip_finish_output_gso()
288 		err = ip_fragment(net, sk, segs, mtu, ip_finish_output2);  in ip_finish_output_gso()
299 	unsigned int mtu;  in __ip_finish_output()  local
308 	mtu = ip_skb_dst_mtu(sk, skb);  in __ip_finish_output()
310 		return ip_finish_output_gso(net, sk, skb, mtu);  in __ip_finish_output()
312 	if (skb->len > mtu || IPCB(skb)->frag_max_size)  in __ip_finish_output()
313 		return ip_fragment(net, sk, skb, mtu, ip_finish_output2);  in __ip_finish_output()
583 		       unsigned int mtu,  in ip_fragment()  argument
593 		      IPCB(skb)->frag_max_size > mtu))) {  in ip_fragment()
596 			  htonl(mtu));  in ip_fragment()
650 		  unsigned int ll_rs, unsigned int mtu, bool DF,  in ip_frag_init()  argument
658 	state->mtu = mtu;  in ip_frag_init()
692 	if (len > state->mtu)  in ip_frag_next()
693 		len = state->mtu;  in ip_frag_next()
774 	unsigned int mtu, hlen, ll_rs;  in ip_do_fragment()  local
791 	mtu = ip_skb_dst_mtu(sk, skb);  in ip_do_fragment()
792 	if (IPCB(skb)->frag_max_size && IPCB(skb)->frag_max_size < mtu)  in ip_do_fragment()
793 		mtu = IPCB(skb)->frag_max_size;  in ip_do_fragment()
800 	mtu = mtu - hlen;	/* Size of data space */  in ip_do_fragment()
815 		if (first_len - hlen > mtu ||  in ip_do_fragment()
824 			if (frag->len > mtu ||  in ip_do_fragment()
900 	ip_frag_init(skb, hlen, ll_rs, mtu, IPCB(skb)->flags & IPSKB_FRAG_PMTU,  in ip_do_fragment()
984 	int mtu;  in __ip_append_data()  local
998 	mtu = cork->gso_size ? IP_MAX_MTU : cork->fragsize;  in __ip_append_data()
1008 	maxfraglen = ((mtu - fragheaderlen) & ~7) + fragheaderlen;  in __ip_append_data()
1009 	maxnonfragsize = ip_sk_ignore_df(sk) ? IP_MAX_MTU : mtu;  in __ip_append_data()
1013 			       mtu - (opt ? opt->optlen : 0));  in __ip_append_data()
1022 	    length + fragheaderlen <= mtu &&  in __ip_append_data()
1056 		copy = mtu - skb->len;  in __ip_append_data()
1079 			if (datalen > mtu - fragheaderlen)  in __ip_append_data()
1097 				alloclen = mtu;  in __ip_append_data()
1280 			 dst_mtu(&rt->dst) : READ_ONCE(rt->dst.dev->mtu);  in ip_setup_cork()
1349 	int mtu;  in ip_append_page()  local
1372 	mtu = cork->gso_size ? IP_MAX_MTU : cork->fragsize;  in ip_append_page()
1375 	maxfraglen = ((mtu - fragheaderlen) & ~7) + fragheaderlen;  in ip_append_page()
1376 	maxnonfragsize = ip_sk_ignore_df(sk) ? 0xFFFF : mtu;  in ip_append_page()
1380 			       mtu - (opt ? opt->optlen : 0));  in ip_append_page()
1392 		len = mtu - skb->len;  in ip_append_page()