linux-kernel - [PATCH net-next] netfilter: xt_HMARK: Use ip_is

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Date:   Thu, 27 Aug 2020 22:08:13 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     <pablo@...filter.org>, <kadlec@...filter.org>, <fw@...len.de>,
        <davem@...emloft.net>, <kuba@...nel.org>, <mcroce@...hat.com>
CC:     <netfilter-devel@...r.kernel.org>, <coreteam@...filter.org>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH net-next] netfilter: xt_HMARK: Use ip_is_fragment() helper

Use ip_is_fragment() to simpify code.

Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
 net/netfilter/xt_HMARK.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/xt_HMARK.c b/net/netfilter/xt_HMARK.c
index 713fb38541df..8928ec56c388 100644
--- a/net/netfilter/xt_HMARK.c
+++ b/net/netfilter/xt_HMARK.c
@@ -276,7 +276,7 @@ hmark_pkt_set_htuple_ipv4(const struct sk_buff *skb, struct hmark_tuple *t,
 		return 0;
 
 	/* follow-up fragments don't contain ports, skip all fragments */
-	if (ip->frag_off & htons(IP_MF | IP_OFFSET))
+	if (ip_is_fragment(ip))
 		return 0;
 
 	hmark_set_tuple_ports(skb, (ip->ihl * 4) + nhoff, t, info);
-- 
2.17.1