5 files changed, 34 insertions, 70 deletions

diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index c8a4558f79ba..f43d85a302c4 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -76,22 +76,13 @@ static void ath_beacon_setup(struct ath_softc *sc, struct ath_vif *avp,
 	ds = bf->bf_desc;
 	flags = ATH9K_TXDESC_NOACK;
 
-	if (((sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) ||
-	     (sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT)) &&
-	    (ah->caps.hw_caps & ATH9K_HW_CAP_VEOL)) {
-		ds->ds_link = bf->bf_daddr; /* self-linked */
-		flags |= ATH9K_TXDESC_VEOL;
-		/* Let hardware handle antenna switching. */
-		antenna = 0;
-	} else {
-		ds->ds_link = 0;
-		/*
-		 * Switch antenna every beacon.
-		 * Should only switch every beacon period, not for every SWBA
-		 * XXX assumes two antennae
-		 */
-		antenna = ((sc->beacon.ast_be_xmit / sc->nbcnvifs) & 1 ? 2 : 1);
-	}
+	ds->ds_link = 0;
+	/*
+	 * Switch antenna every beacon.
+	 * Should only switch every beacon period, not for every SWBA
+	 * XXX assumes two antennae
+	 */
+	antenna = ((sc->beacon.ast_be_xmit / sc->nbcnvifs) & 1 ? 2 : 1);
 
 	sband = &sc->sbands[common->hw->conf.channel->band];
 	rate = sband->bitrates[rateidx].hw_value;
@@ -215,36 +206,6 @@ static struct ath_buf *ath_beacon_generate(struct ieee80211_hw *hw,
 	return bf;
 }
 
-/*
- * Startup beacon transmission for adhoc mode when they are sent entirely
- * by the hardware using the self-linked descriptor + veol trick.
-*/
-static void ath_beacon_start_adhoc(struct ath_softc *sc,
-				   struct ieee80211_vif *vif)
-{
-	struct ath_hw *ah = sc->sc_ah;
-	struct ath_common *common = ath9k_hw_common(ah);
-	struct ath_buf *bf;
-	struct ath_vif *avp;
-	struct sk_buff *skb;
-
-	avp = (void *)vif->drv_priv;
-
-	if (avp->av_bcbuf == NULL)
-		return;
-
-	bf = avp->av_bcbuf;
-	skb = bf->bf_mpdu;
-
-	ath_beacon_setup(sc, avp, bf, 0);
-
-	/* NB: caller is known to have already stopped tx dma */
-	ath9k_hw_puttxbuf(ah, sc->beacon.beaconq, bf->bf_daddr);
-	ath9k_hw_txstart(ah, sc->beacon.beaconq);
-	ath_print(common, ATH_DBG_BEACON, "TXDP%u = %llx (%p)\n",
-		  sc->beacon.beaconq, ito64(bf->bf_daddr), bf->bf_desc);
-}
-
 int ath_beacon_alloc(struct ath_wiphy *aphy, struct ieee80211_vif *vif)
 {
 	struct ath_softc *sc = aphy->sc;
@@ -265,7 +226,8 @@ int ath_beacon_alloc(struct ath_wiphy *aphy, struct ieee80211_vif *vif)
 		list_del(&avp->av_bcbuf->list);
 
 		if (sc->sc_ah->opmode == NL80211_IFTYPE_AP ||
-		    !(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_VEOL)) {
+		    sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC ||
+		    sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT) {
 			int slot;
 			/*
 			 * Assign the vif to a beacon xmit slot. As
@@ -274,17 +236,11 @@ int ath_beacon_alloc(struct ath_wiphy *aphy, struct ieee80211_vif *vif)
 			avp->av_bslot = 0;
 			for (slot = 0; slot < ATH_BCBUF; slot++)
 				if (sc->beacon.bslot[slot] == NULL) {
-					/*
-					 * XXX hack, space out slots to better
-					 * deal with misses
-					 */
-					if (slot+1 < ATH_BCBUF &&
-					    sc->beacon.bslot[slot+1] == NULL) {
-						avp->av_bslot = slot+1;
-						break;
-					}
 					avp->av_bslot = slot;
+
 					/* NB: keep looking for a double slot */
+					if (slot == 0 || !sc->beacon.bslot[slot-1])
+						break;
 				}
 			BUG_ON(sc->beacon.bslot[avp->av_bslot] != NULL);
 			sc->beacon.bslot[avp->av_bslot] = vif;
@@ -721,8 +677,7 @@ static void ath_beacon_config_adhoc(struct ath_softc *sc,
 	 * self-linked tx descriptor and let the hardware deal with things.
 	 */
 	intval |= ATH9K_BEACON_ENA;
-	if (!(ah->caps.hw_caps & ATH9K_HW_CAP_VEOL))
-		ah->imask |= ATH9K_INT_SWBA;
+	ah->imask |= ATH9K_INT_SWBA;
 
 	ath_beaconq_config(sc);
 
@@ -732,10 +687,6 @@ static void ath_beacon_config_adhoc(struct ath_softc *sc,
 	ath9k_beacon_init(sc, nexttbtt, intval);
 	sc->beacon.bmisscnt = 0;
 	ath9k_hw_set_interrupts(ah, ah->imask);
-
-	/* FIXME: Handle properly when vif is NULL */
-	if (vif && ah->caps.hw_caps & ATH9K_HW_CAP_VEOL)
-		ath_beacon_start_adhoc(sc, vif);
 }
 
 void ath_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif)
diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c
index 46dc41a16faa..77b359162d6c 100644
--- a/drivers/net/wireless/ath/ath9k/hif_usb.c
+++ b/drivers/net/wireless/ath/ath9k/hif_usb.c
@@ -107,12 +107,14 @@ static inline void ath9k_skb_queue_purge(struct hif_device_usb *hif_dev,
 static void hif_usb_tx_cb(struct urb *urb)
 {
 	struct tx_buf *tx_buf = (struct tx_buf *) urb->context;
-	struct hif_device_usb *hif_dev = tx_buf->hif_dev;
+	struct hif_device_usb *hif_dev;
 	struct sk_buff *skb;
 
-	if (!hif_dev || !tx_buf)
+	if (!tx_buf || !tx_buf->hif_dev)
 		return;
 
+	hif_dev = tx_buf->hif_dev;
+
 	switch (urb->status) {
 	case 0:
 		break;
@@ -607,6 +609,10 @@ static int ath9k_hif_usb_alloc_tx_urbs(struct hif_device_usb *hif_dev)
 
 	return 0;
 err:
+	if (tx_buf) {
+		kfree(tx_buf->buf);
+		kfree(tx_buf);
+	}
 	ath9k_hif_usb_dealloc_tx_urbs(hif_dev);
 	return -ENOMEM;
 }
diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h
index ad556aa8da39..c251603ab032 100644
--- a/drivers/net/wireless/ath/ath9k/htc.h
+++ b/drivers/net/wireless/ath/ath9k/htc.h
@@ -23,6 +23,7 @@
 #include <linux/skbuff.h>
 #include <linux/netdevice.h>
 #include <linux/leds.h>
+#include <linux/slab.h>
 #include <net/mac80211.h>
 
 #include "common.h"
diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index 257b10ba6f57..1ec836cf1c0d 100644
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -28,7 +28,6 @@ static DEFINE_PCI_DEVICE_TABLE(ath_pci_id_table) = {
 	{ PCI_VDEVICE(ATHEROS, 0x002C) }, /* PCI-E 802.11n bonded out */
 	{ PCI_VDEVICE(ATHEROS, 0x002D) }, /* PCI   */
 	{ PCI_VDEVICE(ATHEROS, 0x002E) }, /* PCI-E */
-	{ PCI_VDEVICE(ATHEROS, 0x0030) }, /* PCI-E  AR9300 */
 	{ 0 }
 };
 
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index ba139132c85f..ca6065b71b46 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -19,6 +19,12 @@
 
 #define SKB_CB_ATHBUF(__skb)	(*((struct ath_buf **)__skb->cb))
 
+static inline bool ath9k_check_auto_sleep(struct ath_softc *sc)
+{
+	return sc->ps_enabled &&
+	       (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP);
+}
+
 static struct ieee80211_hw * ath_get_virt_hw(struct ath_softc *sc,
 					     struct ieee80211_hdr *hdr)
 {
@@ -616,8 +622,8 @@ static void ath_rx_ps(struct ath_softc *sc, struct sk_buff *skb)
 	hdr = (struct ieee80211_hdr *)skb->data;
 
 	/* Process Beacon and CAB receive in PS state */
-	if ((sc->ps_flags & PS_WAIT_FOR_BEACON) &&
-	    ieee80211_is_beacon(hdr->frame_control))
+	if (((sc->ps_flags & PS_WAIT_FOR_BEACON) || ath9k_check_auto_sleep(sc))
+	    && ieee80211_is_beacon(hdr->frame_control))
 		ath_rx_ps_beacon(sc, skb);
 	else if ((sc->ps_flags & PS_WAIT_FOR_CAB) &&
 		 (ieee80211_is_data(hdr->frame_control) ||
@@ -932,9 +938,10 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp)
 			sc->rx.rxotherant = 0;
 		}
 
-		if (unlikely(sc->ps_flags & (PS_WAIT_FOR_BEACON |
-					     PS_WAIT_FOR_CAB |
-					     PS_WAIT_FOR_PSPOLL_DATA)))
+		if (unlikely(ath9k_check_auto_sleep(sc) ||
+			     (sc->ps_flags & (PS_WAIT_FOR_BEACON |
+					      PS_WAIT_FOR_CAB |
+					      PS_WAIT_FOR_PSPOLL_DATA))))
 			ath_rx_ps(sc, skb);
 
 		ath_rx_send_to_mac80211(hw, sc, skb, rxs);