2020-07-14 11:02:52 +00:00
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From 6d90cbb44fd51e1cbb757107d2a86276a66c43df Mon Sep 17 00:00:00 2001
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2020-01-08 04:03:06 +00:00
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From: Greg Rose <gvrose8192@gmail.com>
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Date: Mon, 6 Jan 2020 13:36:34 -0800
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Subject: [PATCH] compat: Include confirm_neigh parameter if needed
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A change backported to the Linux 4.14.162 LTS kernel requires
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a boolean parameter. Check for the presence of the parameter
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and adjust the caller in that case.
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Passes check-kmod test with no regressions.
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Passes Travis build here:
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https://travis-ci.org/gvrose8192/ovs-experimental/builds/633461320
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Signed-off-by: Greg Rose <gvrose8192@gmail.com>
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Signed-off-by: Simon Horman <simon.horman@netronome.com>
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2020-07-14 11:02:52 +00:00
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(cherry picked from commit 6634cc8aed485967737ef7eda489b9d625a4ca74)
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2020-01-08 04:03:06 +00:00
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Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
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---
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acinclude.m4 | 2 ++
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datapath/linux/compat/ip6_gre.c | 4 ++++
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datapath/linux/compat/ip_tunnel.c | 5 +++++
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3 files changed, 11 insertions(+)
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diff --git a/acinclude.m4 b/acinclude.m4
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2020-07-14 11:02:52 +00:00
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index f15b1ff67..84098f2a5 100644
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2020-01-08 04:03:06 +00:00
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--- a/acinclude.m4
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+++ b/acinclude.m4
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2020-07-14 11:02:52 +00:00
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@@ -967,6 +967,8 @@ AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [
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[OVS_DEFINE([HAVE_NF_CONNTRACK_IN_TAKES_NF_HOOK_STATE])])
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OVS_GREP_IFELSE([$KSRC/include/net/ipv6_frag.h], [IP6_DEFRAG_CONNTRACK_IN],
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[OVS_DEFINE([HAVE_IPV6_FRAG_H])])
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2020-01-08 04:03:06 +00:00
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+ OVS_GREP_IFELSE([$KSRC/include/net/dst_ops.h], [bool confirm_neigh],
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+ [OVS_DEFINE([HAVE_DST_OPS_CONFIRM_NEIGH])])
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if cmp -s datapath/linux/kcompat.h.new \
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datapath/linux/kcompat.h >/dev/null 2>&1; then
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diff --git a/datapath/linux/compat/ip6_gre.c b/datapath/linux/compat/ip6_gre.c
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2020-07-14 11:02:52 +00:00
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index 2ffdda5e1..89705d778 100644
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2020-01-08 04:03:06 +00:00
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--- a/datapath/linux/compat/ip6_gre.c
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+++ b/datapath/linux/compat/ip6_gre.c
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2020-07-14 11:02:52 +00:00
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@@ -1196,7 +1196,11 @@ static netdev_tx_t ip6erspan_tunnel_xmit(struct sk_buff *skb,
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2020-01-08 04:03:06 +00:00
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/* TooBig packet may have updated dst->dev's mtu */
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if (!t->parms.collect_md && dst && dst_mtu(dst) > dst->dev->mtu)
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+#ifndef HAVE_DST_OPS_CONFIRM_NEIGH
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dst->ops->update_pmtu(dst, NULL, skb, dst->dev->mtu);
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+#else
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+ dst->ops->update_pmtu(dst, NULL, skb, dst->dev->mtu, false);
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+#endif
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err = ip6_tnl_xmit(skb, dev, dsfield, &fl6, encap_limit, &mtu,
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NEXTHDR_GRE);
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diff --git a/datapath/linux/compat/ip_tunnel.c b/datapath/linux/compat/ip_tunnel.c
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2020-07-14 11:02:52 +00:00
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index d16e60fbf..f1c8ba7cd 100644
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2020-01-08 04:03:06 +00:00
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--- a/datapath/linux/compat/ip_tunnel.c
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+++ b/datapath/linux/compat/ip_tunnel.c
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2020-07-14 11:02:52 +00:00
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@@ -266,7 +266,12 @@ static int rpl_tnl_update_pmtu(struct net_device *dev, struct sk_buff *skb,
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mtu = skb_dst(skb) ? dst_mtu(skb_dst(skb)) : dev->mtu;
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2020-01-08 04:03:06 +00:00
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if (skb_dst(skb))
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+#ifndef HAVE_DST_OPS_CONFIRM_NEIGH
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skb_dst(skb)->ops->update_pmtu(skb_dst(skb), NULL, skb, mtu);
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+#else
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+ skb_dst(skb)->ops->update_pmtu(skb_dst(skb),
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+ NULL, skb, mtu, false);
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+#endif
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if (skb->protocol == htons(ETH_P_IP)) {
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if (!skb_is_gso(skb) &&
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