[PATCH 4.9 129/134] gtp: use icmp_ndo_send helper

[Greg Kroah-Hartman]

From: Jason A. Donenfeld <ja...@zx2c4.com>

commit e0fce6f945a26d4e953a147fe7ca11410322c9fe upstream.

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 <ja...@zx2c4.com>
Cc: Harald Welte <lafo...@gnumonks.org>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/net/gtp.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -560,8 +560,8 @@ static int gtp_build_skb_ip4(struct sk_b
            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;
        }