net: thunderbolt: Unregister ThunderboltIP protocol handler when suspending
[ Upstream commit 9872760eb7b1d4f6066ad8b560714a5d0a728fdb ] The XDomain protocol messages may start as soon as Thunderbolt control channel is started. This means that if the other host starts sending ThunderboltIP packets early enough they will be passed to the network driver which then gets confused because its resume hook is not called yet. Fix this by unregistering the ThunderboltIP protocol handler when suspending and registering it back on resume. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -1285,6 +1285,7 @@ static int __maybe_unused tbnet_suspend(struct device *dev)
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tbnet_tear_down(net, true);
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}
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tb_unregister_protocol_handler(&net->handler);
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return 0;
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}
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@ -1293,6 +1294,8 @@ static int __maybe_unused tbnet_resume(struct device *dev)
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struct tb_service *svc = tb_to_service(dev);
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struct tbnet *net = tb_service_get_drvdata(svc);
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tb_register_protocol_handler(&net->handler);
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netif_carrier_off(net->dev);
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if (netif_running(net->dev)) {
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netif_device_attach(net->dev);
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