linux-kernel - [PATCH 4.19 242/247] xfrm: interface: use icmp_ndo

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Message-Id: <20210301161043.554355228@linuxfoundation.org>
Date:   Mon,  1 Mar 2021 17:14:22 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, "Jason A. Donenfeld" <Jason@...c4.com>,
        Nicolas Dichtel <nicolas.dichtel@...nd.com>,
        Steffen Klassert <steffen.klassert@...unet.com>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 4.19 242/247] xfrm: interface: use icmp_ndo_send helper

From: Jason A. Donenfeld <Jason@...c4.com>

commit 45942ba890e6f35232727a5fa33d732681f4eb9f upstream.

Because xfrmi 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: Nicolas Dichtel <nicolas.dichtel@...nd.com>
Cc: Steffen Klassert <steffen.klassert@...unet.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 net/xfrm/xfrm_interface.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/net/xfrm/xfrm_interface.c
+++ b/net/xfrm/xfrm_interface.c
@@ -300,10 +300,10 @@ xfrmi_xmit2(struct sk_buff *skb, struct
 			if (mtu < IPV6_MIN_MTU)
 				mtu = IPV6_MIN_MTU;
 
-			icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
+			icmpv6_ndo_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
 		} else {
-			icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
-				  htonl(mtu));
+			icmp_ndo_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
+				      htonl(mtu));
 		}
 
 		dst_release(dst);