1 files changed, 23 insertions, 9 deletions

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index e177a8dc23b9..f7aff2e97eea 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -322,16 +322,27 @@ static void purge_old_ps_buffers(struct ieee80211_local *local)
                wiphy_name(local->hw.wiphy), purged);
 }
 
-static inline ieee80211_txrx_result
+static ieee80211_txrx_result
 ieee80211_tx_h_multicast_ps_buf(struct ieee80211_txrx_data *tx)
 {
-        /* broadcast/multicast frame */
-        /* If any of the associated stations is in power save mode,
-         * the frame is buffered to be sent after DTIM beacon frame */
-        if ((tx->local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING) &&
-            tx->sdata->type != IEEE80211_IF_TYPE_WDS &&
-            tx->sdata->bss && atomic_read(&tx->sdata->bss->num_sta_ps) &&
-            !(tx->fc & IEEE80211_FCTL_ORDER)) {
+        /*
+         * broadcast/multicast frame
+         *
+         * If any of the associated stations is in power save mode,
+         * the frame is buffered to be sent after DTIM beacon frame.
+         * This is done either by the hardware or us.
+         */
+
+        /* not AP/IBSS or ordered frame */
+        if (!tx->sdata->bss || (tx->fc & IEEE80211_FCTL_ORDER))
+                return TXRX_CONTINUE;
+
+        /* no stations in PS mode */
+        if (!atomic_read(&tx->sdata->bss->num_sta_ps))
+                return TXRX_CONTINUE;
+
+        /* buffered in mac80211 */
+        if (tx->local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING) {
                 if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER)
                         purge_old_ps_buffers(tx->local);
                 if (skb_queue_len(&tx->sdata->bss->ps_bc_buf) >=
@@ -348,10 +359,13 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_txrx_data *tx)
                 return TXRX_QUEUED;
         }
 
+        /* buffered in hardware */
+        tx->u.tx.control->flags |= IEEE80211_TXCTL_SEND_AFTER_DTIM;
+
         return TXRX_CONTINUE;
 }
 
-static inline ieee80211_txrx_result
+static ieee80211_txrx_result
 ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx)
 {
         struct sta_info *sta = tx->sta;