1 files changed, 190 insertions, 53 deletions

diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index b3ea11f3d52..bd782dcffcc 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -5,11 +5,11 @@
 #include "ieee80211_i.h"
 #include "trace.h"
 
-static inline void check_sdata_in_driver(struct ieee80211_sub_if_data *sdata)
+static inline bool check_sdata_in_driver(struct ieee80211_sub_if_data *sdata)
 {
-	WARN(!(sdata->flags & IEEE80211_SDATA_IN_DRIVER),
-	     "%s:  Failed check-sdata-in-driver check, flags: 0x%x\n",
-	     sdata->dev ? sdata->dev->name : sdata->name, sdata->flags);
+	return !WARN(!(sdata->flags & IEEE80211_SDATA_IN_DRIVER),
+		     "%s:  Failed check-sdata-in-driver check, flags: 0x%x\n",
+		     sdata->dev ? sdata->dev->name : sdata->name, sdata->flags);
 }
 
 static inline struct ieee80211_sub_if_data *
@@ -168,7 +168,8 @@ static inline int drv_change_interface(struct ieee80211_local *local,
 
 	might_sleep();
 
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return -EIO;
 
 	trace_drv_change_interface(local, sdata, type, p2p);
 	ret = local->ops->change_interface(&local->hw, &sdata->vif, type, p2p);
@@ -181,7 +182,8 @@ static inline void drv_remove_interface(struct ieee80211_local *local,
 {
 	might_sleep();
 
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return;
 
 	trace_drv_remove_interface(local, sdata);
 	local->ops->remove_interface(&local->hw, &sdata->vif);
@@ -219,7 +221,8 @@ static inline void drv_bss_info_changed(struct ieee80211_local *local,
 			 sdata->vif.type == NL80211_IFTYPE_MONITOR))
 		return;
 
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return;
 
 	trace_drv_bss_info_changed(local, sdata, info, changed);
 	if (local->ops->bss_info_changed)
@@ -242,22 +245,6 @@ static inline u64 drv_prepare_multicast(struct ieee80211_local *local,
 	return ret;
 }
 
-static inline void drv_set_multicast_list(struct ieee80211_local *local,
-					  struct ieee80211_sub_if_data *sdata,
-					  struct netdev_hw_addr_list *mc_list)
-{
-	bool allmulti = sdata->flags & IEEE80211_SDATA_ALLMULTI;
-
-	trace_drv_set_multicast_list(local, sdata, mc_list->count);
-
-	check_sdata_in_driver(sdata);
-
-	if (local->ops->set_multicast_list)
-		local->ops->set_multicast_list(&local->hw, &sdata->vif,
-					       allmulti, mc_list);
-	trace_drv_return_void(local);
-}
-
 static inline void drv_configure_filter(struct ieee80211_local *local,
 					unsigned int changed_flags,
 					unsigned int *total_flags,
@@ -294,7 +281,8 @@ static inline int drv_set_key(struct ieee80211_local *local,
 	might_sleep();
 
 	sdata = get_bss_sdata(sdata);
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return -EIO;
 
 	trace_drv_set_key(local, cmd, sdata, sta, key);
 	ret = local->ops->set_key(&local->hw, cmd, &sdata->vif, sta, key);
@@ -314,7 +302,8 @@ static inline void drv_update_tkip_key(struct ieee80211_local *local,
 		ista = &sta->sta;
 
 	sdata = get_bss_sdata(sdata);
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return;
 
 	trace_drv_update_tkip_key(local, sdata, conf, ista, iv32);
 	if (local->ops->update_tkip_key)
@@ -331,7 +320,8 @@ static inline int drv_hw_scan(struct ieee80211_local *local,
 
 	might_sleep();
 
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return -EIO;
 
 	trace_drv_hw_scan(local, sdata);
 	ret = local->ops->hw_scan(&local->hw, &sdata->vif, req);
@@ -344,7 +334,8 @@ static inline void drv_cancel_hw_scan(struct ieee80211_local *local,
 {
 	might_sleep();
 
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return;
 
 	trace_drv_cancel_hw_scan(local, sdata);
 	local->ops->cancel_hw_scan(&local->hw, &sdata->vif);
@@ -361,7 +352,8 @@ drv_sched_scan_start(struct ieee80211_local *local,
 
 	might_sleep();
 
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return -EIO;
 
 	trace_drv_sched_scan_start(local, sdata);
 	ret = local->ops->sched_scan_start(&local->hw, &sdata->vif,
@@ -370,16 +362,21 @@ drv_sched_scan_start(struct ieee80211_local *local,
 	return ret;
 }
 
-static inline void drv_sched_scan_stop(struct ieee80211_local *local,
-				       struct ieee80211_sub_if_data *sdata)
+static inline int drv_sched_scan_stop(struct ieee80211_local *local,
+				      struct ieee80211_sub_if_data *sdata)
 {
+	int ret;
+
 	might_sleep();
 
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return -EIO;
 
 	trace_drv_sched_scan_stop(local, sdata);
-	local->ops->sched_scan_stop(&local->hw, &sdata->vif);
-	trace_drv_return_void(local);
+	ret = local->ops->sched_scan_stop(&local->hw, &sdata->vif);
+	trace_drv_return_int(local, ret);
+
+	return ret;
 }
 
 static inline void drv_sw_scan_start(struct ieee80211_local *local)
@@ -474,7 +471,8 @@ static inline void drv_sta_notify(struct ieee80211_local *local,
 				  struct ieee80211_sta *sta)
 {
 	sdata = get_bss_sdata(sdata);
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return;
 
 	trace_drv_sta_notify(local, sdata, cmd, sta);
 	if (local->ops->sta_notify)
@@ -491,7 +489,8 @@ static inline int drv_sta_add(struct ieee80211_local *local,
 	might_sleep();
 
 	sdata = get_bss_sdata(sdata);
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return -EIO;
 
 	trace_drv_sta_add(local, sdata, sta);
 	if (local->ops->sta_add)
@@ -509,7 +508,8 @@ static inline void drv_sta_remove(struct ieee80211_local *local,
 	might_sleep();
 
 	sdata = get_bss_sdata(sdata);
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return;
 
 	trace_drv_sta_remove(local, sdata, sta);
 	if (local->ops->sta_remove)
@@ -527,7 +527,8 @@ static inline void drv_sta_add_debugfs(struct ieee80211_local *local,
 	might_sleep();
 
 	sdata = get_bss_sdata(sdata);
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return;
 
 	if (local->ops->sta_add_debugfs)
 		local->ops->sta_add_debugfs(&local->hw, &sdata->vif,
@@ -550,6 +551,23 @@ static inline void drv_sta_remove_debugfs(struct ieee80211_local *local,
 }
 #endif
 
+static inline void drv_sta_pre_rcu_remove(struct ieee80211_local *local,
+					  struct ieee80211_sub_if_data *sdata,
+					  struct sta_info *sta)
+{
+	might_sleep();
+
+	sdata = get_bss_sdata(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return;
+
+	trace_drv_sta_pre_rcu_remove(local, sdata, &sta->sta);
+	if (local->ops->sta_pre_rcu_remove)
+		local->ops->sta_pre_rcu_remove(&local->hw, &sdata->vif,
+					       &sta->sta);
+	trace_drv_return_void(local);
+}
+
 static inline __must_check
 int drv_sta_state(struct ieee80211_local *local,
 		  struct ieee80211_sub_if_data *sdata,
@@ -562,7 +580,8 @@ int drv_sta_state(struct ieee80211_local *local,
 	might_sleep();
 
 	sdata = get_bss_sdata(sdata);
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return -EIO;
 
 	trace_drv_sta_state(local, sdata, &sta->sta, old_state, new_state);
 	if (local->ops->sta_state) {
@@ -586,7 +605,8 @@ static inline void drv_sta_rc_update(struct ieee80211_local *local,
 				     struct ieee80211_sta *sta, u32 changed)
 {
 	sdata = get_bss_sdata(sdata);
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return;
 
 	WARN_ON(changed & IEEE80211_RC_SUPP_RATES_CHANGED &&
 		(sdata->vif.type != NL80211_IFTYPE_ADHOC &&
@@ -608,7 +628,8 @@ static inline int drv_conf_tx(struct ieee80211_local *local,
 
 	might_sleep();
 
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return -EIO;
 
 	trace_drv_conf_tx(local, sdata, ac, params);
 	if (local->ops->conf_tx)
@@ -625,7 +646,8 @@ static inline u64 drv_get_tsf(struct ieee80211_local *local,
 
 	might_sleep();
 
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return ret;
 
 	trace_drv_get_tsf(local, sdata);
 	if (local->ops->get_tsf)
@@ -640,7 +662,8 @@ static inline void drv_set_tsf(struct ieee80211_local *local,
 {
 	might_sleep();
 
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return;
 
 	trace_drv_set_tsf(local, sdata, tsf);
 	if (local->ops->set_tsf)
@@ -653,7 +676,8 @@ static inline void drv_reset_tsf(struct ieee80211_local *local,
 {
 	might_sleep();
 
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return;
 
 	trace_drv_reset_tsf(local, sdata);
 	if (local->ops->reset_tsf)
@@ -685,7 +709,8 @@ static inline int drv_ampdu_action(struct ieee80211_local *local,
 	might_sleep();
 
 	sdata = get_bss_sdata(sdata);
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return -EIO;
 
 	trace_drv_ampdu_action(local, sdata, action, sta, tid, ssn, buf_size);
 
@@ -722,13 +747,19 @@ static inline void drv_rfkill_poll(struct ieee80211_local *local)
 }
 
 static inline void drv_flush(struct ieee80211_local *local,
+			     struct ieee80211_sub_if_data *sdata,
 			     u32 queues, bool drop)
 {
+	struct ieee80211_vif *vif = sdata ? &sdata->vif : NULL;
+
 	might_sleep();
 
+	if (sdata && !check_sdata_in_driver(sdata))
+		return;
+
 	trace_drv_flush(local, queues, drop);
 	if (local->ops->flush)
-		local->ops->flush(&local->hw, queues, drop);
+		local->ops->flush(&local->hw, vif, queues, drop);
 	trace_drv_return_void(local);
 }
 
@@ -844,7 +875,8 @@ static inline int drv_set_bitrate_mask(struct ieee80211_local *local,
 
 	might_sleep();
 
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return -EIO;
 
 	trace_drv_set_bitrate_mask(local, sdata, mask);
 	if (local->ops->set_bitrate_mask)
@@ -859,7 +891,8 @@ static inline void drv_set_rekey_data(struct ieee80211_local *local,
 				      struct ieee80211_sub_if_data *sdata,
 				      struct cfg80211_gtk_rekey_data *data)
 {
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return;
 
 	trace_drv_set_rekey_data(local, sdata, data);
 	if (local->ops->set_rekey_data)
@@ -927,7 +960,8 @@ static inline void drv_mgd_prepare_tx(struct ieee80211_local *local,
 {
 	might_sleep();
 
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return;
 	WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION);
 
 	trace_drv_mgd_prepare_tx(local, sdata);
@@ -954,6 +988,9 @@ static inline int drv_add_chanctx(struct ieee80211_local *local,
 static inline void drv_remove_chanctx(struct ieee80211_local *local,
 				      struct ieee80211_chanctx *ctx)
 {
+	if (WARN_ON(!ctx->driver_present))
+		return;
+
 	trace_drv_remove_chanctx(local, ctx);
 	if (local->ops->remove_chanctx)
 		local->ops->remove_chanctx(&local->hw, &ctx->conf);
@@ -979,7 +1016,8 @@ static inline int drv_assign_vif_chanctx(struct ieee80211_local *local,
 {
 	int ret = 0;
 
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return -EIO;
 
 	trace_drv_assign_vif_chanctx(local, sdata, ctx);
 	if (local->ops->assign_vif_chanctx) {
@@ -997,7 +1035,8 @@ static inline void drv_unassign_vif_chanctx(struct ieee80211_local *local,
 					    struct ieee80211_sub_if_data *sdata,
 					    struct ieee80211_chanctx *ctx)
 {
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return;
 
 	trace_drv_unassign_vif_chanctx(local, sdata, ctx);
 	if (local->ops->unassign_vif_chanctx) {
@@ -1009,12 +1048,66 @@ static inline void drv_unassign_vif_chanctx(struct ieee80211_local *local,
 	trace_drv_return_void(local);
 }
 
+static inline int
+drv_switch_vif_chanctx(struct ieee80211_local *local,
+		       struct ieee80211_vif_chanctx_switch *vifs,
+		       int n_vifs,
+		       enum ieee80211_chanctx_switch_mode mode)
+{
+	int ret = 0;
+	int i;
+
+	if (!local->ops->switch_vif_chanctx)
+		return -EOPNOTSUPP;
+
+	for (i = 0; i < n_vifs; i++) {
+		struct ieee80211_chanctx *new_ctx =
+			container_of(vifs[i].new_ctx,
+				     struct ieee80211_chanctx,
+				     conf);
+		struct ieee80211_chanctx *old_ctx =
+			container_of(vifs[i].old_ctx,
+				     struct ieee80211_chanctx,
+				     conf);
+
+		WARN_ON_ONCE(!old_ctx->driver_present);
+		WARN_ON_ONCE((mode == CHANCTX_SWMODE_SWAP_CONTEXTS &&
+			      new_ctx->driver_present) ||
+			     (mode == CHANCTX_SWMODE_REASSIGN_VIF &&
+			      !new_ctx->driver_present));
+	}
+
+	trace_drv_switch_vif_chanctx(local, vifs, n_vifs, mode);
+	ret = local->ops->switch_vif_chanctx(&local->hw,
+					     vifs, n_vifs, mode);
+	trace_drv_return_int(local, ret);
+
+	if (!ret && mode == CHANCTX_SWMODE_SWAP_CONTEXTS) {
+		for (i = 0; i < n_vifs; i++) {
+			struct ieee80211_chanctx *new_ctx =
+				container_of(vifs[i].new_ctx,
+					     struct ieee80211_chanctx,
+					     conf);
+			struct ieee80211_chanctx *old_ctx =
+				container_of(vifs[i].old_ctx,
+					     struct ieee80211_chanctx,
+					     conf);
+
+			new_ctx->driver_present = true;
+			old_ctx->driver_present = false;
+		}
+	}
+
+	return ret;
+}
+
 static inline int drv_start_ap(struct ieee80211_local *local,
 			       struct ieee80211_sub_if_data *sdata)
 {
 	int ret = 0;
 
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return -EIO;
 
 	trace_drv_start_ap(local, sdata, &sdata->vif.bss_conf);
 	if (local->ops->start_ap)
@@ -1026,7 +1119,8 @@ static inline int drv_start_ap(struct ieee80211_local *local,
 static inline void drv_stop_ap(struct ieee80211_local *local,
 			       struct ieee80211_sub_if_data *sdata)
 {
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return;
 
 	trace_drv_stop_ap(local, sdata);
 	if (local->ops->stop_ap)
@@ -1049,7 +1143,8 @@ drv_set_default_unicast_key(struct ieee80211_local *local,
 			    struct ieee80211_sub_if_data *sdata,
 			    int key_idx)
 {
-	check_sdata_in_driver(sdata);
+	if (!check_sdata_in_driver(sdata))
+		return;
 
 	WARN_ON_ONCE(key_idx < -1 || key_idx > 3);
 
@@ -1085,4 +1180,46 @@ drv_channel_switch_beacon(struct ieee80211_sub_if_data *sdata,
 	}
 }
 
+static inline int drv_join_ibss(struct ieee80211_local *local,
+				struct ieee80211_sub_if_data *sdata)
+{
+	int ret = 0;
+
+	might_sleep();
+	if (!check_sdata_in_driver(sdata))
+		return -EIO;
+
+	trace_drv_join_ibss(local, sdata, &sdata->vif.bss_conf);
+	if (local->ops->join_ibss)
+		ret = local->ops->join_ibss(&local->hw, &sdata->vif);
+	trace_drv_return_int(local, ret);
+	return ret;
+}
+
+static inline void drv_leave_ibss(struct ieee80211_local *local,
+				  struct ieee80211_sub_if_data *sdata)
+{
+	might_sleep();
+	if (!check_sdata_in_driver(sdata))
+		return;
+
+	trace_drv_leave_ibss(local, sdata);
+	if (local->ops->leave_ibss)
+		local->ops->leave_ibss(&local->hw, &sdata->vif);
+	trace_drv_return_void(local);
+}
+
+static inline u32 drv_get_expected_throughput(struct ieee80211_local *local,
+					      struct ieee80211_sta *sta)
+{
+	u32 ret = 0;
+
+	trace_drv_get_expected_throughput(sta);
+	if (local->ops->get_expected_throughput)
+		ret = local->ops->get_expected_throughput(sta);
+	trace_drv_return_u32(local, ret);
+
+	return ret;
+}
+
 #endif /* __MAC80211_DRIVER_OPS */