86 	    unsigned int mtu,
243 				struct sk_buff *skb, unsigned int mtu)  in ip_finish_output_gso()  argument
251 	if (skb_gso_validate_network_len(skb, mtu))  in ip_finish_output_gso()
282 		err = ip_fragment(net, sk, segs, mtu, ip_finish_output2);  in ip_finish_output_gso()
294 	unsigned int mtu;  in ip_finish_output()  local
310 	mtu = ip_skb_dst_mtu(sk, skb);  in ip_finish_output()
312 		return ip_finish_output_gso(net, sk, skb, mtu);  in ip_finish_output()
314 	if (skb->len > mtu || (IPCB(skb)->flags & IPSKB_FRAG_PMTU))  in ip_finish_output()
315 		return ip_fragment(net, sk, skb, mtu, ip_finish_output2);  in ip_finish_output()
543 		       unsigned int mtu,  in ip_fragment()  argument
553 		      IPCB(skb)->frag_max_size > mtu))) {  in ip_fragment()
556 			  htonl(mtu));  in ip_fragment()
577 	unsigned int mtu, hlen, left, len, ll_rs;  in ip_do_fragment()  local
594 	mtu = ip_skb_dst_mtu(sk, skb);  in ip_do_fragment()
595 	if (IPCB(skb)->frag_max_size && IPCB(skb)->frag_max_size < mtu)  in ip_do_fragment()
596 		mtu = IPCB(skb)->frag_max_size;  in ip_do_fragment()
603 	mtu = mtu - hlen;	/* Size of data space */  in ip_do_fragment()
618 		if (first_len - hlen > mtu ||  in ip_do_fragment()
627 			if (frag->len > mtu ||  in ip_do_fragment()
733 		if (len > mtu)  in ip_do_fragment()
734 			len = mtu;  in ip_do_fragment()
875 	int mtu;  in __ip_append_data()  local
889 	mtu = cork->gso_size ? IP_MAX_MTU : cork->fragsize;  in __ip_append_data()
899 	maxfraglen = ((mtu - fragheaderlen) & ~7) + fragheaderlen;  in __ip_append_data()
900 	maxnonfragsize = ip_sk_ignore_df(sk) ? 0xFFFF : mtu;  in __ip_append_data()
904 			       mtu - (opt ? opt->optlen : 0));  in __ip_append_data()
913 	    length + fragheaderlen <= mtu &&  in __ip_append_data()
933 		copy = mtu - skb->len;  in __ip_append_data()
956 			if (datalen > mtu - fragheaderlen)  in __ip_append_data()
962 				alloclen = mtu;  in __ip_append_data()
1149 			 dst_mtu(&rt->dst) : rt->dst.dev->mtu;  in ip_setup_cork()
1210 	int mtu;  in ip_append_page()  local
1233 	mtu = cork->gso_size ? IP_MAX_MTU : cork->fragsize;  in ip_append_page()
1236 	maxfraglen = ((mtu - fragheaderlen) & ~7) + fragheaderlen;  in ip_append_page()
1237 	maxnonfragsize = ip_sk_ignore_df(sk) ? 0xFFFF : mtu;  in ip_append_page()
1241 			       mtu - (opt ? opt->optlen : 0));  in ip_append_page()
1253 		len = mtu - skb->len;  in ip_append_page()