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[02/10] thunderbolt: Find XDomain by route instead of UUID

Message ID 20201104140030.6853-3-mika.westerberg@linux.intel.com
State New
Headers show
Series thunderbolt: Add DMA traffic test driver | expand

Commit Message

Mika Westerberg Nov. 4, 2020, 2 p.m. UTC
We are going to represent loops back to the host also as XDomains and
they all have the same (host) UUID, so finding them needs to use route
string instead. This also requires that we check if the XDomain device
is added to the bus before its properties can be updated. Otherwise the
remote UUID might not be populated yet.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
 drivers/thunderbolt/xdomain.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
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diff --git a/drivers/thunderbolt/xdomain.c b/drivers/thunderbolt/xdomain.c
index c00ad817042e..e2866248f389 100644
--- a/drivers/thunderbolt/xdomain.c
+++ b/drivers/thunderbolt/xdomain.c
@@ -587,8 +587,6 @@  static void tb_xdp_handle_request(struct work_struct *work)
-		const struct tb_xdp_properties_changed *xchg =
-			(const struct tb_xdp_properties_changed *)pkg;
 		struct tb_xdomain *xd;
 		ret = tb_xdp_properties_changed_response(ctl, route, sequence);
@@ -598,8 +596,8 @@  static void tb_xdp_handle_request(struct work_struct *work)
 		 * the xdomain related to this connection as well in
 		 * case there is a change in services it offers.
-		xd = tb_xdomain_find_by_uuid_locked(tb, &xchg->src_uuid);
-		if (xd) {
+		xd = tb_xdomain_find_by_route_locked(tb, route);
+		if (xd && device_is_registered(&xd->dev)) {
 			queue_delayed_work(tb->wq, &xd->get_properties_work,