8 files changed, 74 insertions, 21 deletions

diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c
index cfd4d052d666..2d14255eb103 100644
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -240,6 +240,10 @@ static u64 ath5k_get_tsf(struct ieee80211_hw *hw);
 static void ath5k_reset_tsf(struct ieee80211_hw *hw);
 static int ath5k_beacon_update(struct ieee80211_hw *hw,
                 struct sk_buff *skb);
+static void ath5k_bss_info_changed(struct ieee80211_hw *hw,
+                struct ieee80211_vif *vif,
+                struct ieee80211_bss_conf *bss_conf,
+                u32 changes);
 
 static struct ieee80211_ops ath5k_hw_ops = {
         .tx             = ath5k_tx,
@@ -256,6 +260,7 @@ static struct ieee80211_ops ath5k_hw_ops = {
         .get_tx_stats   = ath5k_get_tx_stats,
         .get_tsf        = ath5k_get_tsf,
         .reset_tsf      = ath5k_reset_tsf,
+        .bss_info_changed = ath5k_bss_info_changed,
 };
 
 /*
@@ -2942,7 +2947,7 @@ static void ath5k_configure_filter(struct ieee80211_hw *hw,
                 sc->opmode != NL80211_IFTYPE_MESH_POINT &&
                 test_bit(ATH_STAT_PROMISC, sc->status))
                 rfilt |= AR5K_RX_FILTER_PROM;
-        if (sc->opmode == NL80211_IFTYPE_STATION ||
+        if ((sc->opmode == NL80211_IFTYPE_STATION && sc->assoc) ||
                 sc->opmode == NL80211_IFTYPE_ADHOC) {
                 rfilt |= AR5K_RX_FILTER_BEACON;
         }
@@ -3083,4 +3088,32 @@ ath5k_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb)
 end:
         return ret;
 }
+static void
+set_beacon_filter(struct ieee80211_hw *hw, bool enable)
+{
+        struct ath5k_softc *sc = hw->priv;
+        struct ath5k_hw *ah = sc->ah;
+        u32 rfilt;
+        rfilt = ath5k_hw_get_rx_filter(ah);
+        if (enable)
+                rfilt |= AR5K_RX_FILTER_BEACON;
+        else
+                rfilt &= ~AR5K_RX_FILTER_BEACON;
+        ath5k_hw_set_rx_filter(ah, rfilt);
+        sc->filter_flags = rfilt;
+}
 
+static void ath5k_bss_info_changed(struct ieee80211_hw *hw,
+                                    struct ieee80211_vif *vif,
+                                    struct ieee80211_bss_conf *bss_conf,
+                                    u32 changes)
+{
+        struct ath5k_softc *sc = hw->priv;
+        if (changes & BSS_CHANGED_ASSOC) {
+                mutex_lock(&sc->lock);
+                sc->assoc = bss_conf->assoc;
+                if (sc->opmode == NL80211_IFTYPE_STATION)
+                        set_beacon_filter(hw, sc->assoc);
+                mutex_unlock(&sc->lock);
+        }
+}
diff --git a/drivers/net/wireless/ath5k/base.h b/drivers/net/wireless/ath5k/base.h
index 06d1054ca94b..facc60ddada2 100644
--- a/drivers/net/wireless/ath5k/base.h
+++ b/drivers/net/wireless/ath5k/base.h
@@ -179,6 +179,7 @@ struct ath5k_softc {
 
         struct timer_list       calib_tim;      /* calibration timer */
         int                     power_level;    /* Requested tx power in dbm */
+        bool                    assoc;          /* assocate state */
 };
 
 #define ath5k_hw_hasbssidmask(_ah) \
diff --git a/drivers/net/wireless/ath5k/debug.c b/drivers/net/wireless/ath5k/debug.c
index 19980cbd5d5f..ccaeb5c219d2 100644
--- a/drivers/net/wireless/ath5k/debug.c
+++ b/drivers/net/wireless/ath5k/debug.c
@@ -417,19 +417,19 @@ ath5k_debug_init_device(struct ath5k_softc *sc)
         sc->debug.debugfs_phydir = debugfs_create_dir(wiphy_name(sc->hw->wiphy),
                                 ath5k_global_debugfs);
 
-        sc->debug.debugfs_debug = debugfs_create_file("debug", 0666,
+        sc->debug.debugfs_debug = debugfs_create_file("debug", S_IWUSR | S_IRUGO,
                                 sc->debug.debugfs_phydir, sc, &fops_debug);
 
-        sc->debug.debugfs_registers = debugfs_create_file("registers", 0444,
+        sc->debug.debugfs_registers = debugfs_create_file("registers", S_IRUGO,
                                 sc->debug.debugfs_phydir, sc, &fops_registers);
 
-        sc->debug.debugfs_tsf = debugfs_create_file("tsf", 0666,
+        sc->debug.debugfs_tsf = debugfs_create_file("tsf", S_IWUSR | S_IRUGO,
                                 sc->debug.debugfs_phydir, sc, &fops_tsf);
 
-        sc->debug.debugfs_beacon = debugfs_create_file("beacon", 0666,
+        sc->debug.debugfs_beacon = debugfs_create_file("beacon", S_IWUSR | S_IRUGO,
                                 sc->debug.debugfs_phydir, sc, &fops_beacon);
 
-        sc->debug.debugfs_reset = debugfs_create_file("reset", 0222,
+        sc->debug.debugfs_reset = debugfs_create_file("reset", S_IWUSR,
                                 sc->debug.debugfs_phydir, sc, &fops_reset);
 }
 
diff --git a/drivers/net/wireless/ath9k/beacon.c b/drivers/net/wireless/ath9k/beacon.c
index 9e15c30bbc06..4dd1c1bda0fb 100644
--- a/drivers/net/wireless/ath9k/beacon.c
+++ b/drivers/net/wireless/ath9k/beacon.c
@@ -170,7 +170,7 @@ static struct ath_buf *ath_beacon_generate(struct ath_softc *sc, int if_id)
         skb = (struct sk_buff *)bf->bf_mpdu;
         if (skb) {
                 pci_unmap_single(sc->pdev, bf->bf_dmacontext,
-                                 skb_end_pointer(skb) - skb->head,
+                                 skb->len,
                                  PCI_DMA_TODEVICE);
         }
 
@@ -193,7 +193,7 @@ static struct ath_buf *ath_beacon_generate(struct ath_softc *sc, int if_id)
 
         bf->bf_buf_addr = bf->bf_dmacontext =
                 pci_map_single(sc->pdev, skb->data,
-                               skb_end_pointer(skb) - skb->head,
+                               skb->len,
                                PCI_DMA_TODEVICE);
 
         skb = ieee80211_get_buffered_bc(sc->hw, avp->av_if_data);
@@ -352,7 +352,7 @@ int ath_beacon_alloc(struct ath_softc *sc, int if_id)
         if (bf->bf_mpdu != NULL) {
                 skb = (struct sk_buff *)bf->bf_mpdu;
                 pci_unmap_single(sc->pdev, bf->bf_dmacontext,
-                                 skb_end_pointer(skb) - skb->head,
+                                 skb->len,
                                  PCI_DMA_TODEVICE);
                 dev_kfree_skb_any(skb);
                 bf->bf_mpdu = NULL;
@@ -412,7 +412,7 @@ int ath_beacon_alloc(struct ath_softc *sc, int if_id)
 
         bf->bf_buf_addr = bf->bf_dmacontext =
                 pci_map_single(sc->pdev, skb->data,
-                               skb_end_pointer(skb) - skb->head,
+                               skb->len,
                                PCI_DMA_TODEVICE);
         bf->bf_mpdu = skb;
 
@@ -439,7 +439,7 @@ void ath_beacon_return(struct ath_softc *sc, struct ath_vap *avp)
                 if (bf->bf_mpdu != NULL) {
                         struct sk_buff *skb = (struct sk_buff *)bf->bf_mpdu;
                         pci_unmap_single(sc->pdev, bf->bf_dmacontext,
-                                         skb_end_pointer(skb) - skb->head,
+                                         skb->len,
                                          PCI_DMA_TODEVICE);
                         dev_kfree_skb_any(skb);
                         bf->bf_mpdu = NULL;
diff --git a/drivers/net/wireless/ath9k/recv.c b/drivers/net/wireless/ath9k/recv.c
index 4983402af559..504a0444d89f 100644
--- a/drivers/net/wireless/ath9k/recv.c
+++ b/drivers/net/wireless/ath9k/recv.c
@@ -49,10 +49,12 @@ static void ath_rx_buf_link(struct ath_softc *sc, struct ath_buf *bf)
         ASSERT(skb != NULL);
         ds->ds_vdata = skb->data;
 
-        /* setup rx descriptors */
+        /* setup rx descriptors. The sc_rxbufsize here tells the harware
+         * how much data it can DMA to us and that we are prepared
+         * to process */
         ath9k_hw_setuprxdesc(ah,
                              ds,
-                             skb_tailroom(skb),   /* buffer size */
+                             sc->sc_rxbufsize,
                              0);
 
         if (sc->sc_rxlink == NULL)
@@ -398,6 +400,13 @@ static struct sk_buff *ath_rxbuf_alloc(struct ath_softc *sc,
          * in rx'd frames.
          */
 
+        /* Note: the kernel can allocate a value greater than
+         * what we ask it to give us. We really only need 4 KB as that
+         * is this hardware supports and in fact we need at least 3849
+         * as that is the MAX AMSDU size this hardware supports.
+         * Unfortunately this means we may get 8 KB here from the
+         * kernel... and that is actually what is observed on some
+         * systems :( */
         skb = dev_alloc_skb(len + sc->sc_cachelsz - 1);
         if (skb != NULL) {
                 off = ((unsigned long) skb->data) % sc->sc_cachelsz;
@@ -456,7 +465,7 @@ static int ath_rx_indicate(struct ath_softc *sc,
         if (nskb != NULL) {
                 bf->bf_mpdu = nskb;
                 bf->bf_buf_addr = pci_map_single(sc->pdev, nskb->data,
-                                         skb_end_pointer(nskb) - nskb->head,
+                                         sc->sc_rxbufsize,
                                          PCI_DMA_FROMDEVICE);
                 bf->bf_dmacontext = bf->bf_buf_addr;
                 ATH_RX_CONTEXT(nskb)->ctx_rxbuf = bf;
@@ -542,7 +551,7 @@ int ath_rx_init(struct ath_softc *sc, int nbufs)
 
                         bf->bf_mpdu = skb;
                         bf->bf_buf_addr = pci_map_single(sc->pdev, skb->data,
-                                         skb_end_pointer(skb) - skb->head,
+                                         sc->sc_rxbufsize,
                                          PCI_DMA_FROMDEVICE);
                         bf->bf_dmacontext = bf->bf_buf_addr;
                         ATH_RX_CONTEXT(skb)->ctx_rxbuf = bf;
@@ -1007,7 +1016,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush)
 
                 pci_dma_sync_single_for_cpu(sc->pdev,
                                             bf->bf_buf_addr,
-                                            skb_tailroom(skb),
+                                            sc->sc_rxbufsize,
                                             PCI_DMA_FROMDEVICE);
                 pci_unmap_single(sc->pdev,
                                  bf->bf_buf_addr,
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 444c5cc05f03..c4c0371c763b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -1384,9 +1384,11 @@ void iwl_rx_handle(struct iwl_priv *priv)
 
                 rxq->queue[i] = NULL;
 
-                pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->aligned_dma_addr,
-                                            priv->hw_params.rx_buf_size,
-                                            PCI_DMA_FROMDEVICE);
+                dma_sync_single_range_for_cpu(
+                                &priv->pci_dev->dev, rxb->real_dma_addr,
+                                rxb->aligned_dma_addr - rxb->real_dma_addr,
+                                priv->hw_params.rx_buf_size,
+                                PCI_DMA_FROMDEVICE);
                 pkt = (struct iwl_rx_packet *)rxb->skb->data;
 
                 /* Reclaim a command buffer only if this packet is a response
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 742f811ca416..ab4ddba874be 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -271,6 +271,7 @@ static int ieee80211_ioctl_siwmode(struct net_device *dev,
                                    __u32 *mode, char *extra)
 {
         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+        struct ieee80211_local *local = sdata->local;
         int type;
 
         if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
@@ -281,6 +282,13 @@ static int ieee80211_ioctl_siwmode(struct net_device *dev,
                 type = NL80211_IFTYPE_STATION;
                 break;
         case IW_MODE_ADHOC:
+                /* Setting ad-hoc mode on non ibss channel is not
+                 * supported.
+                 */
+                if (local->oper_channel &&
+                    (local->oper_channel->flags & IEEE80211_CHAN_NO_IBSS))
+                        return -EOPNOTSUPP;
+
                 type = NL80211_IFTYPE_ADHOC;
                 break;
         case IW_MODE_REPEAT:
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 626dbb688499..eb3b1a9f9b12 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -343,9 +343,9 @@ static int ignore_request(struct wiphy *wiphy, enum reg_set_by set_by,
                                 return 0;
                         return -EALREADY;
                 }
-                if (WARN_ON(!is_alpha2_set(alpha2) || !is_an_alpha2(alpha2)),
+                if (WARN(!is_alpha2_set(alpha2) || !is_an_alpha2(alpha2),
                                 "Invalid Country IE regulatory hint passed "
-                                "to the wireless core\n")
+                                "to the wireless core\n"))
                         return -EINVAL;
                 /* We ignore Country IE hints for now, as we haven't yet
                  * added the dot11MultiDomainCapabilityEnabled flag