hsr: ratelimit only when errors are printed

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2177256

commit 1b0120e
Author: Matthieu Baerts <matthieu.baerts@tessares.net>
Date:   Wed Mar 15 21:25:17 2023 +0100

    hsr: ratelimit only when errors are printed

    Recently, when automatically merging -net and net-next in MPTCP devel
    tree, our CI reported [1] a conflict in hsr, the same as the one
    reported by Stephen in netdev [2].

    When looking at the conflict, I noticed it is in fact the v1 [3] that
    has been applied in -net and the v2 [4] in net-next. Maybe the v1 was
    applied by accident.

    As mentioned by Jakub Kicinski [5], the new condition makes more sense
    before the net_ratelimit(), not to update net_ratelimit's state which is
    unnecessary if we're not going to print either way.

    Here, this modification applies the v2 but in -net.

    Link: https://github.com/multipath-tcp/mptcp_net-next/actions/runs/4423171069 [1]
    Link: https://lore.kernel.org/netdev/20230315100914.53fc1760@canb.auug.org.au/ [2]
    Link: https://lore.kernel.org/netdev/20230307133229.127442-1-koverskeid@gmail.com/ [3]
    Link: https://lore.kernel.org/netdev/20230309092302.179586-1-koverskeid@gmail.com/ [4]
    Link: https://lore.kernel.org/netdev/20230308232001.2fb62013@kernel.org/ [5]
    Fixes: 28e8cab ("net: hsr: Don't log netdev_err message on unknown prp dst node")
    Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
    Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
    Link: https://lore.kernel.org/r/20230315-net-20230315-hsr_framereg-ratelimit-v1-1-61d2ef176d11@tessares.net
    Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Signed-off-by: Felix Maurer <fmaurer@redhat.com>

Author: fmaurer-rh

net/hsr/hsr_framereg.c

@@ -415,7 +415,7 @@ void hsr_addr_subst_dest(struct hsr_node *node_src, struct sk_buff *skb,
 	node_dst = find_node_by_addr_A(&port->hsr->node_db,
 				       eth_hdr(skb)->h_dest);
 	if (!node_dst) {
-		if (net_ratelimit() && port->hsr->prot_version != PRP_V1)
+		if (port->hsr->prot_version != PRP_V1 && net_ratelimit())
 			netdev_err(skb->dev, "%s: Unknown node\n", __func__);
 		return;
 	}