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iwlwifi: mvm: use helpers to get iwl_mvm_sta

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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>
This commit is contained in:
Sara Sharon 2016-04-10 15:51:54 +03:00 committed by Luca Coelho
parent ce1f27787d
commit 13303c0fb1
6 changed files with 14 additions and 31 deletions
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8
drivers/net/wireless/intel/iwlwifi/mvm/d3.c
View File

@ -1804,7 +1804,6 @@ static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
struct iwl_wowlan_status *fw_status;
int i;
bool keep;
struct ieee80211_sta *ap_sta;
struct iwl_mvm_sta *mvm_ap_sta;
fw_status = iwl_mvm_get_wakeup_status(mvm, vif);
@ -1823,13 +1822,10 @@ static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
status.wake_packet = fw_status->wake_packet;
/* still at hard-coded place 0 for D3 image */
ap_sta = rcu_dereference_protected(
mvm->fw_id_to_mac_id[0],
lockdep_is_held(&mvm->mutex));
if (IS_ERR_OR_NULL(ap_sta))
mvm_ap_sta = iwl_mvm_sta_from_staid_protected(mvm, 0);
if (!mvm_ap_sta)
goto out_free;
mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
u16 seq = status.qos_seq_ctr[i];
/* firmware stores last-used value, we store next value */

9
drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
View File

@ -281,13 +281,10 @@ static ssize_t iwl_dbgfs_mac_params_read(struct file *file,
if (vif->type == NL80211_IFTYPE_STATION &&
ap_sta_id != IWL_MVM_STATION_COUNT) {
struct ieee80211_sta *sta;
sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[ap_sta_id],
lockdep_is_held(&mvm->mutex));
if (!IS_ERR_OR_NULL(sta)) {
struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
struct iwl_mvm_sta *mvm_sta;
mvm_sta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id);
if (mvm_sta) {
pos += scnprintf(buf+pos, bufsz-pos,
"ap_sta_id %d - reduced Tx power %d\n",
ap_sta_id,

6
drivers/net/wireless/intel/iwlwifi/mvm/ops.c
View File

@ -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];

7
drivers/net/wireless/intel/iwlwifi/mvm/sta.c
View File

@ -1756,17 +1756,12 @@ static struct iwl_mvm_sta *iwl_mvm_get_key_sta(struct iwl_mvm *mvm,
mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
u8 sta_id = mvmvif->ap_sta_id;
sta = rcu_dereference_check(mvm->fw_id_to_mac_id[sta_id],
lockdep_is_held(&mvm->mutex));
/*
* It is possible that the 'sta' parameter is NULL,
* for example when a GTK is removed - the sta_id will then
* be the AP ID, and no station was passed by mac80211.
*/
if (IS_ERR_OR_NULL(sta))
return NULL;
return iwl_mvm_sta_from_mac80211(sta);
return iwl_mvm_sta_from_staid_protected(mvm, sta_id);
}
return NULL;

8
drivers/net/wireless/intel/iwlwifi/mvm/tt.c
View File

@ -359,16 +359,14 @@ static void iwl_mvm_tt_smps_iterator(void *_data, u8 *mac,
static void iwl_mvm_tt_tx_protection(struct iwl_mvm *mvm, bool enable)
{
struct ieee80211_sta *sta;
struct iwl_mvm_sta *mvmsta;
int i, err;
for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
lockdep_is_held(&mvm->mutex));
if (IS_ERR_OR_NULL(sta))
mvmsta = iwl_mvm_sta_from_staid_protected(mvm, i);
if (!mvmsta)
continue;
mvmsta = iwl_mvm_sta_from_mac80211(sta);
if (enable == mvmsta->tt_tx_protection)
continue;
err = iwl_mvm_tx_protection(mvm, mvmsta, enable);

7
drivers/net/wireless/intel/iwlwifi/mvm/tx.c
View File

@ -1464,7 +1464,7 @@ static void iwl_mvm_rx_tx_cmd_agg(struct iwl_mvm *mvm,
int sta_id = IWL_MVM_TX_RES_GET_RA(tx_resp->ra_tid);
int tid = IWL_MVM_TX_RES_GET_TID(tx_resp->ra_tid);
u16 sequence = le16_to_cpu(pkt->hdr.sequence);
struct ieee80211_sta *sta;
struct iwl_mvm_sta *mvmsta;
if (WARN_ON_ONCE(SEQ_TO_QUEUE(sequence) < mvm->first_agg_queue))
return;
@ -1476,10 +1476,9 @@ static void iwl_mvm_rx_tx_cmd_agg(struct iwl_mvm *mvm,
rcu_read_lock();
sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, sta_id);
if (!WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) {
struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
if (!WARN_ON_ONCE(!mvmsta)) {
mvmsta->tid_data[tid].rate_n_flags =
le32_to_cpu(tx_resp->initial_rate);
mvmsta->tid_data[tid].tx_time =