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-rw-r--r--drivers/thunderbolt/icm.c35
1 files changed, 26 insertions, 9 deletions
diff --git a/drivers/thunderbolt/icm.c b/drivers/thunderbolt/icm.c
index 500911f16498..ad4eeaa59b16 100644
--- a/drivers/thunderbolt/icm.c
+++ b/drivers/thunderbolt/icm.c
@@ -534,20 +534,13 @@ icm_fr_device_connected(struct tb *tb, const struct icm_pkg_header *hdr)
return;
}
- ret = icm->get_route(tb, link, depth, &route);
- if (ret) {
- tb_err(tb, "failed to find route string for switch at %u.%u\n",
- link, depth);
- return;
- }
-
sw = tb_switch_find_by_uuid(tb, &pkg->ep_uuid);
if (sw) {
u8 phy_port, sw_phy_port;
parent_sw = tb_to_switch(sw->dev.parent);
- sw_phy_port = phy_port_from_route(tb_route(sw), sw->depth);
- phy_port = phy_port_from_route(route, depth);
+ sw_phy_port = tb_phy_port_from_link(sw->link);
+ phy_port = tb_phy_port_from_link(link);
/*
* On resume ICM will send us connected events for the
@@ -559,6 +552,22 @@ icm_fr_device_connected(struct tb *tb, const struct icm_pkg_header *hdr)
*/
if (sw->depth == depth && sw_phy_port == phy_port &&
!!sw->authorized == authorized) {
+ /*
+ * It was enumerated through another link so update
+ * route string accordingly.
+ */
+ if (sw->link != link) {
+ ret = icm->get_route(tb, link, depth, &route);
+ if (ret) {
+ tb_err(tb, "failed to update route string for switch at %u.%u\n",
+ link, depth);
+ tb_switch_put(sw);
+ return;
+ }
+ } else {
+ route = tb_route(sw);
+ }
+
update_switch(parent_sw, sw, route, pkg->connection_id,
pkg->connection_key, link, depth, boot);
tb_switch_put(sw);
@@ -607,6 +616,14 @@ icm_fr_device_connected(struct tb *tb, const struct icm_pkg_header *hdr)
return;
}
+ ret = icm->get_route(tb, link, depth, &route);
+ if (ret) {
+ tb_err(tb, "failed to find route string for switch at %u.%u\n",
+ link, depth);
+ tb_switch_put(parent_sw);
+ return;
+ }
+
add_switch(parent_sw, route, &pkg->ep_uuid, pkg->connection_id,
pkg->connection_key, link, depth, security_level,
authorized, boot);