From 41390895e50bc4f28abe384c6b35ac27464a20ec Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Tue, 28 Mar 2017 10:31:20 +0200 Subject: [PATCH] netfilter: ipvs: don't check for presence of nat extension Check for the NAT status bits, they are set once conntrack needs NAT in source or reply direction, this is slightly faster than nfct_nat() as that has to check the extension area. Signed-off-by: Florian Westphal --- net/netfilter/ipvs/ip_vs_ftp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/netfilter/ipvs/ip_vs_ftp.c b/net/netfilter/ipvs/ip_vs_ftp.c index d30c327bb578..2e2bf7428cd1 100644 --- a/net/netfilter/ipvs/ip_vs_ftp.c +++ b/net/netfilter/ipvs/ip_vs_ftp.c @@ -260,7 +260,7 @@ static int ip_vs_ftp_out(struct ip_vs_app *app, struct ip_vs_conn *cp, buf_len = strlen(buf); ct = nf_ct_get(skb, &ctinfo); - if (ct && !nf_ct_is_untracked(ct) && nfct_nat(ct)) { + if (ct && !nf_ct_is_untracked(ct) && (ct->status & IPS_NAT_MASK)) { /* If mangling fails this function will return 0 * which will cause the packet to be dropped. * Mangling can only fail under memory pressure, -- 2.20.1