diff options
| -rw-r--r-- | drivers/thunderbolt/icm.c | 6 | ||||
| -rw-r--r-- | drivers/thunderbolt/tb_msgs.h | 1 |
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/thunderbolt/icm.c b/drivers/thunderbolt/icm.c index 611d28e8e5f2..6d7f8262f864 100644 --- a/drivers/thunderbolt/icm.c +++ b/drivers/thunderbolt/icm.c @@ -410,6 +410,12 @@ icm_fr_device_connected(struct tb *tb, const struct icm_pkg_header *hdr) ICM_LINK_INFO_DEPTH_SHIFT; authorized = pkg->link_info & ICM_LINK_INFO_APPROVED; + if (pkg->link_info & ICM_LINK_INFO_REJECTED) { + tb_info(tb, "switch at %u.%u was rejected by ICM firmware because topology limit exceeded\n", + link, depth); + 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", diff --git a/drivers/thunderbolt/tb_msgs.h b/drivers/thunderbolt/tb_msgs.h index b0a092baa605..476bc04cac6c 100644 --- a/drivers/thunderbolt/tb_msgs.h +++ b/drivers/thunderbolt/tb_msgs.h @@ -176,6 +176,7 @@ struct icm_fr_event_device_connected { #define ICM_LINK_INFO_DEPTH_SHIFT 4 #define ICM_LINK_INFO_DEPTH_MASK GENMASK(7, 4) #define ICM_LINK_INFO_APPROVED BIT(8) +#define ICM_LINK_INFO_REJECTED BIT(9) struct icm_fr_pkg_approve_device { struct icm_pkg_header hdr; |