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From a152a434074ee38e38be6593502ff0058e67c2f4 Mon Sep 17 00:00:00 2001
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From: Dumitru Ceara <dceara@redhat.com>
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Date: Thu, 14 Nov 2019 13:43:49 +0100
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Subject: [PATCH ovn 3/3] ovn-northd: Avoid empty address list when limiting
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ARP/ND broadcast.
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Reported-by: Numan Siddique <numans@ovn.org>
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Fixes: 32f5ebb06226 ("ovn-northd: Limit ARP/ND broadcast domain whenever possible.")
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Signed-off-by: Dumitru Ceara <dceara@redhat.com>
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Signed-off-by: Numan Siddique <numans@ovn.org>
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(cherry-picked from upstream commit 998617cd85bfa1f03f2e734e479fd87f3e833797)
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---
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ovn/northd/ovn-northd.c | 12 ++++++++----
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1 file changed, 8 insertions(+), 4 deletions(-)
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diff --git a/ovn/northd/ovn-northd.c b/ovn/northd/ovn-northd.c
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index 03eb7a4..0e6f8f6 100644
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--- a/ovn/northd/ovn-northd.c
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+++ b/ovn/northd/ovn-northd.c
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@@ -5331,10 +5331,14 @@ build_lswitch_rport_arp_req_flows(struct ovn_port *op,
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}
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}
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- build_lswitch_rport_arp_req_flow_for_ip(&all_ips_v4, AF_INET, sw_op,
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- sw_od, 75, lflows);
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- build_lswitch_rport_arp_req_flow_for_ip(&all_ips_v6, AF_INET6, sw_op,
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- sw_od, 75, lflows);
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+ if (!sset_is_empty(&all_ips_v4)) {
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+ build_lswitch_rport_arp_req_flow_for_ip(&all_ips_v4, AF_INET, sw_op,
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+ sw_od, 75, lflows);
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+ }
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+ if (!sset_is_empty(&all_ips_v6)) {
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+ build_lswitch_rport_arp_req_flow_for_ip(&all_ips_v6, AF_INET6, sw_op,
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+ sw_od, 75, lflows);
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+ }
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sset_destroy(&all_ips_v4);
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sset_destroy(&all_ips_v6);
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--
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1.8.3.1
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