iwlwifi: mvm: remove unused arguments

The str/len arguments to iwl_fw_dbg_trigger_simple_stop() aren't used,
and for a simple trigger don't really need to be used as the trigger
code itself encodes the reason, so remove them.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

drivers/net/wireless/iwlwifi/mvm/mac80211.c

@@ -3711,8 +3711,7 @@ static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
 	IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
 			   chsw->chandef.center_freq1);
 
-	iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH,
-				       NULL, 0);
+	iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH);
 
 	switch (vif->type) {
 	case NL80211_IFTYPE_AP:

drivers/net/wireless/iwlwifi/mvm/mvm.h

@@ -1516,8 +1516,7 @@ iwl_fw_dbg_trigger_check_stop(struct iwl_mvm *mvm,
 static inline void
 iwl_fw_dbg_trigger_simple_stop(struct iwl_mvm *mvm,
 			       struct ieee80211_vif *vif,
-			       enum iwl_fw_dbg_trigger trig,
-			       const char *str, size_t len)
+			       enum iwl_fw_dbg_trigger trig)
 {
 	struct iwl_fw_dbg_trigger_tlv *trigger;
 
@@ -1528,7 +1527,7 @@ iwl_fw_dbg_trigger_simple_stop(struct iwl_mvm *mvm,
 	if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trigger))
 		return;
 
-	iwl_mvm_fw_dbg_collect_trig(mvm, trigger, str, len);
+	iwl_mvm_fw_dbg_collect_trig(mvm, trigger, NULL, 0);
 }
 
 #endif /* __IWL_MVM_H__ */