This is a note to let you know that I've just added the patch titled

net: thunderbolt: Tear down connection properly on suspend

to the 4.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: net-thunderbolt-tear-down-connection-properly-on-suspend.patch and it can be found in the queue-4.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From 8e021a14d908475fea89ef85b5421865f7ad650d Mon Sep 17 00:00:00 2001

From: Mika Westerberg mika.westerberg@linux.intel.com Date: Mon, 12 Feb 2018 17:10:19 +0300 Subject: net: thunderbolt: Tear down connection properly on suspend

From: Mika Westerberg mika.westerberg@linux.intel.com

commit 8e021a14d908475fea89ef85b5421865f7ad650d upstream.

When suspending to mem or disk the Thunderbolt controller typically goes down as well tearing down the connection automatically. However, when suspend to idle is used this does not happen so we need to make sure the connection is properly disconnected before it can be re-established during resume.

Fixes: e69b6c02b4c3 ("net: Add support for networking over Thunderbolt cable") Signed-off-by: Mika Westerberg mika.westerberg@linux.intel.com Cc: stable@vger.kernel.org Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- drivers/net/thunderbolt.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-)

--- a/drivers/net/thunderbolt.c +++ b/drivers/net/thunderbolt.c @@ -1270,10 +1270,7 @@ static int __maybe_unused tbnet_suspend( stop_login(net); if (netif_running(net->dev)) { netif_device_detach(net->dev); - tb_ring_stop(net->rx_ring.ring); - tb_ring_stop(net->tx_ring.ring); - tbnet_free_buffers(&net->rx_ring); - tbnet_free_buffers(&net->tx_ring); + tbnet_tear_down(net, true); }

return 0;

Patches currently in stable-queue which might be from mika.westerberg@linux.intel.com are

queue-4.15/net-thunderbolt-run-disconnect-flow-asynchronously-when-logout-is-received.patch queue-4.15/net-thunderbolt-tear-down-connection-properly-on-suspend.patch