Merge tag 'mac80211-for-davem-2018-03-21' of...

Merge tag 'mac80211-for-davem-2018-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
Two more fixes (in three patches):
 * ath9k_htc doesn't like QoS NDP frames, use regular ones
 * hwsim: set up wmediumd for radios created later
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/wireless/ath/ath9k/htc_drv_init.c

@@ -729,6 +729,7 @@ static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
 	ieee80211_hw_set(hw, SPECTRUM_MGMT);
 	ieee80211_hw_set(hw, SIGNAL_DBM);
 	ieee80211_hw_set(hw, AMPDU_AGGREGATION);
+	ieee80211_hw_set(hw, DOESNT_SUPPORT_QOS_NDP);
 
 	if (ath9k_ps_enable)
 		ieee80211_hw_set(hw, SUPPORTS_PS);

drivers/net/wireless/mac80211_hwsim.c

@@ -2727,6 +2727,7 @@ static int mac80211_hwsim_new_radio(struct genl_info *info,
 	mutex_init(&data->mutex);
 
 	data->netgroup = hwsim_net_get_netgroup(net);
+	data->wmediumd = hwsim_net_get_wmediumd(net);
 
 	/* Enable frame retransmissions for lossy channels */
 	hw->max_rates = 4;

include/net/mac80211.h

@@ -2063,6 +2063,9 @@ struct ieee80211_txq {
  * @IEEE80211_HW_SUPPORTS_TDLS_BUFFER_STA: Hardware supports buffer STA on
  *	TDLS links.
  *
+ * @IEEE80211_HW_DOESNT_SUPPORT_QOS_NDP: The driver (or firmware) doesn't
+ *	support QoS NDP for AP probing - that's most likely a driver bug.
+ *
  * @NUM_IEEE80211_HW_FLAGS: number of hardware flags, used for sizing arrays
  */
 enum ieee80211_hw_flags {
@@ -2106,6 +2109,7 @@ enum ieee80211_hw_flags {
 	IEEE80211_HW_REPORTS_LOW_ACK,
 	IEEE80211_HW_SUPPORTS_TX_FRAG,
 	IEEE80211_HW_SUPPORTS_TDLS_BUFFER_STA,
+	IEEE80211_HW_DOESNT_SUPPORT_QOS_NDP,
 
 	/* keep last, obviously */
 	NUM_IEEE80211_HW_FLAGS

net/mac80211/debugfs.c

@@ -212,6 +212,7 @@ static const char *hw_flag_names[] = {
 	FLAG(REPORTS_LOW_ACK),
 	FLAG(SUPPORTS_TX_FRAG),
 	FLAG(SUPPORTS_TDLS_BUFFER_STA),
+	FLAG(DOESNT_SUPPORT_QOS_NDP),
 #undef FLAG
 };
 

net/mac80211/mlme.c

@@ -896,7 +896,8 @@ void ieee80211_send_nullfunc(struct ieee80211_local *local,
 	struct ieee80211_hdr_3addr *nullfunc;
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
-	skb = ieee80211_nullfunc_get(&local->hw, &sdata->vif, true);
+	skb = ieee80211_nullfunc_get(&local->hw, &sdata->vif,
+		!ieee80211_hw_check(&local->hw, DOESNT_SUPPORT_QOS_NDP));
 	if (!skb)
 		return;