Commit cbc08a33 authored by Miaohe Lin's avatar Miaohe Lin Committed by David S. Miller
Browse files

net: Use helper macro IP_MAX_MTU in __ip_append_data() 



What 0xFFFF means here is actually the max mtu of a ip packet. Use help
macro IP_MAX_MTU here.

Signed-off-by: default avatarMiaohe Lin <linmiaohe@huawei.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4d4dce31

net/ipv4/ip_output.c

+1 −1
Original line number Diff line number Diff line
@@ -996,7 +996,7 @@ static int __ip_append_data(struct sock *sk, 


	fragheaderlen = sizeof(struct iphdr) + (opt ? opt->optlen : 0);

	maxfraglen = ((mtu - fragheaderlen) & ~7) + fragheaderlen;

	maxnonfragsize = ip_sk_ignore_df(sk) ? 0xFFFF : mtu;

	maxnonfragsize = ip_sk_ignore_df(sk) ? IP_MAX_MTU : mtu;



	if (cork->length + length > maxnonfragsize - fragheaderlen) {

		ip_local_error(sk, EMSGSIZE, fl4->daddr, inet->inet_dport,

CRA Git | Maintained and supported by SUSTech CRA and CCSE