netdev - [PATCH net 2/5] gtp: use icmp_ndo

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Message-Id: <20200209143143.151632-2-Jason@zx2c4.com>
Date:   Sun,  9 Feb 2020 15:31:40 +0100
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     netfilter-devel@...r.kernel.org, netdev@...r.kernel.org
Cc:     "Jason A. Donenfeld" <Jason@...c4.com>,
        Harald Welte <laforge@...monks.org>
Subject: [PATCH net 2/5] gtp: use icmp_ndo_send helper

Because gtp is calling icmp from network device context, it should use
the ndo helper so that the rate limiting applies correctly.

Signed-off-by: Jason A. Donenfeld <Jason@...c4.com>
Cc: Harald Welte <laforge@...monks.org>
---
 drivers/net/gtp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index af07ea760b35..672cd2caf2fb 100644
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -546,8 +546,8 @@ static int gtp_build_skb_ip4(struct sk_buff *skb, struct net_device *dev,
 	    mtu < ntohs(iph->tot_len)) {
 		netdev_dbg(dev, "packet too big, fragmentation needed\n");
 		memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
-		icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
-			  htonl(mtu));
+		icmp_ndo_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
+			      htonl(mtu));
 		goto err_rt;
 	}
 
-- 
2.25.0