From: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx> When the driver is unregistered, CSME will take ownership on the device. Reflect this in the iwlmei object so that we will remember to re-ask for ownership when the driver will register again. Not doing so will cause CSME not to give the host ownership and we will see the following error message when trying to bring up the interface: iwlwifi 0000:a9:00.0: iwl_pcie_prepare_card_hw iwl_trans_prepare_card_hw enter iwlwifi 0000:a9:00.0: iwl_pcie_set_hw_ready hardware not ready iwlwifi 0000:a9:00.0: iwl_pcie_set_hw_ready hardware not ready iwlwifi 0000:a9:00.0: iwl_pcie_prepare_card_hw Couldn't prepare the card but SAP is connected iwlwifi 0000:a9:00.0: Error while preparing HW: -16 Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx> Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx> --- drivers/net/wireless/intel/iwlwifi/mei/main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/intel/iwlwifi/mei/main.c b/drivers/net/wireless/intel/iwlwifi/mei/main.c index 4453cd2571c2..787d64276f36 100644 --- a/drivers/net/wireless/intel/iwlwifi/mei/main.c +++ b/drivers/net/wireless/intel/iwlwifi/mei/main.c @@ -1703,6 +1703,7 @@ void iwl_mei_unregister_complete(void) mei_cldev_get_drvdata(iwl_mei_global_cldev); iwl_mei_send_sap_msg(mei->cldev, SAP_MSG_NOTIF_WIFIDR_DOWN); + mei->got_ownership = false; } mutex_unlock(&iwl_mei_mutex); -- 2.34.1
