iwlwifi: mvm: Allow schedule scan while connected

In the past when schedule scan was started while connected on one of
interfaces FW crashes were observed. In the newest FW this issue is
solved, so remove limitaion after examining corresponding TLV flag.

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index bd12f8e..412a8a0 100644 (file)
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -2152,7 +2152,13 @@ static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
 
        mutex_lock(&mvm->mutex);
 
-       if (!iwl_mvm_is_idle(mvm)) {
+       /* Newest FW fixes sched scan while connected on another interface */
+       if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN) {
+               if (!vif->bss_conf.idle) {
+                       ret = -EBUSY;
+                       goto out;
+               }
+       } else if (!iwl_mvm_is_idle(mvm)) {
                ret = -EBUSY;
                goto out;
        }