iwlwifi: mvm: use helpers to get iwl_mvm_sta

Getting the mvm station out of station id requires dereferencing
the station id to get ieee80211_sta, then checking for pointer
validity and only then extract mvm station out.
Given that there are helpers to do it - use them instead of
duplicating the code whenever we need only mvm station.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

1 files changed, 2 insertions, 4 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index 2ba13691b481..6f91c5bdfd62 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -1210,7 +1210,6 @@ static bool iwl_mvm_disallow_offloading(struct iwl_mvm *mvm,
                                         struct iwl_d0i3_iter_data *iter_data)
 {
         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
-        struct ieee80211_sta *ap_sta;
         struct iwl_mvm_sta *mvmsta;
         u32 available_tids = 0;
         u8 tid;
@@ -1219,11 +1218,10 @@ static bool iwl_mvm_disallow_offloading(struct iwl_mvm *mvm,
                     mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT))
                 return false;
 
-        ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id]);
-        if (IS_ERR_OR_NULL(ap_sta))
+        mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, mvmvif->ap_sta_id);
+        if (!mvmsta)
                 return false;
 
-        mvmsta = iwl_mvm_sta_from_mac80211(ap_sta);
         spin_lock_bh(&mvmsta->lock);
         for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
                 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];