iwlwifi: mvm: export last bt_notif through debugfs

This will allow to track how BT core updates the driver.
This is required to debug the BT Coexistence mechanism.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index fa054b364e52..47954deb6493 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -307,6 +307,9 @@ int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
                        notif->bt_agg_traffic_load);
         IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
 
+        /* remember this notification for future use: rssi fluctuations */
+        memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif));
+
         ieee80211_iterate_active_interfaces_atomic(
                                         mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
                                         iwl_mvm_bt_notif_iterator, &data);