16 files changed, 84 insertions, 40 deletions

diff --git a/drivers/net/wireless/ath/ath9k/ar9002_hw.c b/drivers/net/wireless/ath/ath9k/ar9002_hw.c
index 9ff7c30573b8..44d9d8d56490 100644
--- a/drivers/net/wireless/ath/ath9k/ar9002_hw.c
+++ b/drivers/net/wireless/ath/ath9k/ar9002_hw.c
@@ -309,11 +309,7 @@ static void ar9002_hw_configpcipowersave(struct ath_hw *ah,
         u8 i;
         u32 val;
 
-        if (ah->is_pciexpress != true)
-                return;
-
-        /* Do not touch SerDes registers */
-        if (ah->config.pcie_powersave_enable == 2)
+        if (ah->is_pciexpress != true || ah->aspm_enabled != true)
                 return;
 
         /* Nothing to do on restore for 11N */
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_hw.c b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
index 8efdec247c02..ad2bb2bf4e8a 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_hw.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
@@ -519,11 +519,7 @@ static void ar9003_hw_configpcipowersave(struct ath_hw *ah,
                                          int restore,
                                          int power_off)
 {
-        if (ah->is_pciexpress != true)
-                return;
-
-        /* Do not touch SerDes registers */
-        if (ah->config.pcie_powersave_enable == 2)
+        if (ah->is_pciexpress != true || ah->aspm_enabled != true)
                 return;
 
         /* Nothing to do on restore for 11N */
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 8006ce0c7357..8dcefe74f4c3 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -318,6 +318,14 @@ static void ath9k_hw_disablepcie(struct ath_hw *ah)
         REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
 }
 
+static void ath9k_hw_aspm_init(struct ath_hw *ah)
+{
+        struct ath_common *common = ath9k_hw_common(ah);
+
+        if (common->bus_ops->aspm_init)
+                common->bus_ops->aspm_init(common);
+}
+
 /* This should work for all families including legacy */
 static bool ath9k_hw_chip_test(struct ath_hw *ah)
 {
@@ -378,7 +386,6 @@ static void ath9k_hw_init_config(struct ath_hw *ah)
         ah->config.additional_swba_backoff = 0;
         ah->config.ack_6mb = 0x0;
         ah->config.cwm_ignore_extcca = 0;
-        ah->config.pcie_powersave_enable = 0;
         ah->config.pcie_clock_req = 0;
         ah->config.pcie_waen = 0;
         ah->config.analog_shiftreg = 1;
@@ -598,7 +605,7 @@ static int __ath9k_hw_init(struct ath_hw *ah)
 
 
         if (ah->is_pciexpress)
-                ath9k_hw_configpcipowersave(ah, 0, 0);
+                ath9k_hw_aspm_init(ah);
         else
                 ath9k_hw_disablepcie(ah);
 
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 6acd0f975ae1..c79889036ec4 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -219,7 +219,6 @@ struct ath9k_ops_config {
         int additional_swba_backoff;
         int ack_6mb;
         u32 cwm_ignore_extcca;
-        u8 pcie_powersave_enable;
         bool pcieSerDesWrite;
         u8 pcie_clock_req;
         u32 pcie_waen;
@@ -673,6 +672,7 @@ struct ath_hw {
 
         bool sw_mgmt_crypto;
         bool is_pciexpress;
+        bool aspm_enabled;
         bool is_monitoring;
         bool need_an_top2_fixup;
         u16 tx_trig_level;
@@ -874,6 +874,7 @@ struct ath_bus_ops {
         bool (*eeprom_read)(struct ath_common *common, u32 off, u16 *data);
         void (*bt_coex_prep)(struct ath_common *common);
         void (*extn_synch_en)(struct ath_common *common);
+        void (*aspm_init)(struct ath_common *common);
 };
 
 static inline struct ath_common *ath9k_hw_common(struct ath_hw *ah)
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index ac5107172f94..aa0ff7e2c922 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -670,8 +670,10 @@ static void ath9k_init_band_txpower(struct ath_softc *sc, int band)
 static void ath9k_init_txpower_limits(struct ath_softc *sc)
 {
         struct ath_hw *ah = sc->sc_ah;
+        struct ath_common *common = ath9k_hw_common(sc->sc_ah);
         struct ath9k_channel *curchan = ah->curchan;
 
+        ah->txchainmask = common->tx_chainmask;
         if (ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ)
                 ath9k_init_band_txpower(sc, IEEE80211_BAND_2GHZ);
         if (ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ)
diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index 3bad0b2cf9a3..be4ea1329813 100644
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -16,6 +16,7 @@
 
 #include <linux/nl80211.h>
 #include <linux/pci.h>
+#include <linux/pci-aspm.h>
 #include <linux/ath9k_platform.h>
 #include "ath9k.h"
 
@@ -115,12 +116,38 @@ static void ath_pci_extn_synch_enable(struct ath_common *common)
         pci_write_config_byte(pdev, sc->sc_ah->caps.pcie_lcr_offset, lnkctl);
 }
 
+static void ath_pci_aspm_init(struct ath_common *common)
+{
+        struct ath_softc *sc = (struct ath_softc *) common->priv;
+        struct ath_hw *ah = sc->sc_ah;
+        struct pci_dev *pdev = to_pci_dev(sc->dev);
+        struct pci_dev *parent;
+        int pos;
+        u8 aspm;
+
+        if (!pci_is_pcie(pdev))
+                return;
+
+        parent = pdev->bus->self;
+        if (WARN_ON(!parent))
+                return;
+
+        pos = pci_pcie_cap(parent);
+        pci_read_config_byte(parent, pos +  PCI_EXP_LNKCTL, &aspm);
+        if (aspm & (PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1)) {
+                ah->aspm_enabled = true;
+                /* Initialize PCIe PM and SERDES registers. */
+                ath9k_hw_configpcipowersave(ah, 0, 0);
+        }
+}
+
 static const struct ath_bus_ops ath_pci_bus_ops = {
         .ath_bus_type = ATH_PCI,
         .read_cachesize = ath_pci_read_cachesize,
         .eeprom_read = ath_pci_eeprom_read,
         .bt_coex_prep = ath_pci_bt_coex_prep,
         .extn_synch_en = ath_pci_extn_synch_enable,
+        .aspm_init = ath_pci_aspm_init,
 };
 
 static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
diff --git a/drivers/net/wireless/iwlegacy/iwl-3945.c b/drivers/net/wireless/iwlegacy/iwl-3945.c
index dab67a12d73b..73fe3cdf796b 100644
--- a/drivers/net/wireless/iwlegacy/iwl-3945.c
+++ b/drivers/net/wireless/iwlegacy/iwl-3945.c
@@ -1746,7 +1746,11 @@ int iwl3945_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
                 }
 
                 memcpy(active_rxon, staging_rxon, sizeof(*active_rxon));
-
+                /*
+                 * We do not commit tx power settings while channel changing,
+                 * do it now if tx power changed.
+                 */
+                iwl_legacy_set_tx_power(priv, priv->tx_power_next, false);
                 return 0;
         }
 
diff --git a/drivers/net/wireless/iwlegacy/iwl-4965.c b/drivers/net/wireless/iwlegacy/iwl-4965.c
index bd4b000733f7..ecdc6e557428 100644
--- a/drivers/net/wireless/iwlegacy/iwl-4965.c
+++ b/drivers/net/wireless/iwlegacy/iwl-4965.c
@@ -1235,7 +1235,12 @@ static int iwl4965_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *c
 
                 memcpy(active_rxon, &ctx->staging, sizeof(*active_rxon));
                 iwl_legacy_print_rx_config_cmd(priv, ctx);
-                goto set_tx_power;
+                /*
+                 * We do not commit tx power settings while channel changing,
+                 * do it now if tx power changed.
+                 */
+                iwl_legacy_set_tx_power(priv, priv->tx_power_next, false);
+                return 0;
         }
 
         /* If we are currently associated and the new config requires
@@ -1315,7 +1320,6 @@ static int iwl4965_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *c
 
         iwl4965_init_sensitivity(priv);
 
-set_tx_power:
         /* If we issue a new RXON command which required a tune then we must
          * send a new TXPOWER command or we won't be able to Tx any frames */
         ret = iwl_legacy_set_tx_power(priv, priv->tx_power_next, true);
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 3eeb12ebe6e9..c95cefd529dc 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -365,6 +365,7 @@ static struct iwl_base_params iwl5000_base_params = {
         .chain_noise_scale = 1000,
         .wd_timeout = IWL_LONG_WD_TIMEOUT,
         .max_event_log_size = 512,
+        .no_idle_support = true,
 };
 static struct iwl_ht_params iwl5000_ht_params = {
         .ht_greenfield_support = true,
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 3e6bb734dcb7..02817a438550 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -135,6 +135,7 @@ struct iwl_mod_params {
  * @temperature_kelvin: temperature report by uCode in kelvin
  * @max_event_log_size: size of event log buffer size for ucode event logging
  * @shadow_reg_enable: HW shadhow register bit
+ * @no_idle_support: do not support idle mode
  */
 struct iwl_base_params {
         int eeprom_size;
@@ -156,6 +157,7 @@ struct iwl_base_params {
         bool temperature_kelvin;
         u32 max_event_log_size;
         const bool shadow_reg_enable;
+        const bool no_idle_support;
 };
 /*
  * @advanced_bt_coexist: support advanced bt coexist
diff --git a/drivers/net/wireless/iwlwifi/iwl-pci.c b/drivers/net/wireless/iwlwifi/iwl-pci.c
index fb7e436b40c7..69d4ec467dca 100644
--- a/drivers/net/wireless/iwlwifi/iwl-pci.c
+++ b/drivers/net/wireless/iwlwifi/iwl-pci.c
@@ -134,6 +134,7 @@ static void iwl_pci_apm_config(struct iwl_bus *bus)
 static void iwl_pci_set_drv_data(struct iwl_bus *bus, void *drv_data)
 {
         bus->drv_data = drv_data;
+        pci_set_drvdata(IWL_BUS_GET_PCI_DEV(bus), drv_data);
 }
 
 static void iwl_pci_get_hw_id(struct iwl_bus *bus, char buf[],
@@ -454,8 +455,6 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
                 pci_write_config_word(pdev, PCI_COMMAND, pci_cmd);
         }
 
-        pci_set_drvdata(pdev, bus);
-
         bus->dev = &pdev->dev;
         bus->irq = pdev->irq;
         bus->ops = &pci_ops;
@@ -494,11 +493,12 @@ static void iwl_pci_down(struct iwl_bus *bus)
 
 static void __devexit iwl_pci_remove(struct pci_dev *pdev)
 {
-        struct iwl_bus *bus = pci_get_drvdata(pdev);
+        struct iwl_priv *priv = pci_get_drvdata(pdev);
+        void *bus_specific = priv->bus->bus_specific;
 
-        iwl_remove(bus->drv_data);
+        iwl_remove(priv);
 
-        iwl_pci_down(bus);
+        iwl_pci_down(bus_specific);
 }
 
 #ifdef CONFIG_PM
@@ -506,20 +506,20 @@ static void __devexit iwl_pci_remove(struct pci_dev *pdev)
 static int iwl_pci_suspend(struct device *device)
 {
         struct pci_dev *pdev = to_pci_dev(device);
-        struct iwl_bus *bus = pci_get_drvdata(pdev);
+        struct iwl_priv *priv = pci_get_drvdata(pdev);
 
         /* Before you put code here, think about WoWLAN. You cannot check here
          * whether WoWLAN is enabled or not, and your code will run even if
          * WoWLAN is enabled - don't kill the NIC, someone may need it in Sx.
          */
 
-        return iwl_suspend(bus->drv_data);
+        return iwl_suspend(priv);
 }
 
 static int iwl_pci_resume(struct device *device)
 {
         struct pci_dev *pdev = to_pci_dev(device);
-        struct iwl_bus *bus = pci_get_drvdata(pdev);
+        struct iwl_priv *priv = pci_get_drvdata(pdev);
 
         /* Before you put code here, think about WoWLAN. You cannot check here
          * whether WoWLAN is enabled or not, and your code will run even if
@@ -532,7 +532,7 @@ static int iwl_pci_resume(struct device *device)
          */
         pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00);
 
-        return iwl_resume(bus->drv_data);
+        return iwl_resume(priv);
 }
 
 static SIMPLE_DEV_PM_OPS(iwl_dev_pm_ops, iwl_pci_suspend, iwl_pci_resume);
diff --git a/drivers/net/wireless/iwlwifi/iwl-power.c b/drivers/net/wireless/iwlwifi/iwl-power.c
index 3ec619c6881c..cd64df05f9ed 100644
--- a/drivers/net/wireless/iwlwifi/iwl-power.c
+++ b/drivers/net/wireless/iwlwifi/iwl-power.c
@@ -349,7 +349,8 @@ static void iwl_power_build_cmd(struct iwl_priv *priv,
 
         if (priv->wowlan)
                 iwl_static_sleep_cmd(priv, cmd, IWL_POWER_INDEX_5, dtimper);
-        else if (priv->hw->conf.flags & IEEE80211_CONF_IDLE)
+        else if (!priv->cfg->base_params->no_idle_support &&
+                 priv->hw->conf.flags & IEEE80211_CONF_IDLE)
                 iwl_static_sleep_cmd(priv, cmd, IWL_POWER_INDEX_5, 20);
         else if (iwl_tt_is_low_power_state(priv)) {
                 /* in thermal throttling low power state */
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 84ab7d1acb6a..ef67f6786a84 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -703,8 +703,7 @@ void rt2800_write_beacon(struct queue_entry *entry, struct txentry_desc *txdesc)
         /*
          * Add space for the TXWI in front of the skb.
          */
-        skb_push(entry->skb, TXWI_DESC_SIZE);
-        memset(entry->skb, 0, TXWI_DESC_SIZE);
+        memset(skb_push(entry->skb, TXWI_DESC_SIZE), 0, TXWI_DESC_SIZE);
 
         /*
          * Register descriptor details in skb frame descriptor.
diff --git a/drivers/net/wireless/rt2x00/rt2x00lib.h b/drivers/net/wireless/rt2x00/rt2x00lib.h
index 15cdc7e57fc4..4cdf247a870d 100644
--- a/drivers/net/wireless/rt2x00/rt2x00lib.h
+++ b/drivers/net/wireless/rt2x00/rt2x00lib.h
@@ -355,7 +355,8 @@ static inline enum cipher rt2x00crypto_key_to_cipher(struct ieee80211_key_conf *
         return CIPHER_NONE;
 }
 
-static inline void rt2x00crypto_create_tx_descriptor(struct queue_entry *entry,
+static inline void rt2x00crypto_create_tx_descriptor(struct rt2x00_dev *rt2x00dev,
+                                                     struct sk_buff *skb,
                                                      struct txentry_desc *txdesc)
 {
 }
diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c
index 8efab3983528..4ccf23805973 100644
--- a/drivers/net/wireless/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/rt2x00/rt2x00mac.c
@@ -113,7 +113,7 @@ void rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
          * due to possible race conditions in mac80211.
          */
         if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
-                goto exit_fail;
+                goto exit_free_skb;
 
         /*
          * Use the ATIM queue if appropriate and present.
@@ -127,7 +127,7 @@ void rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
                 ERROR(rt2x00dev,
                       "Attempt to send packet over invalid queue %d.\n"
                       "Please file bug report to %s.\n", qid, DRV_PROJECT);
-                goto exit_fail;
+                goto exit_free_skb;
         }
 
         /*
@@ -159,6 +159,7 @@ void rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 
  exit_fail:
         rt2x00queue_pause_queue(queue);
+ exit_free_skb:
         dev_kfree_skb_any(skb);
 }
 EXPORT_SYMBOL_GPL(rt2x00mac_tx);
diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c
index 5efd57833489..56f12358389d 100644
--- a/drivers/net/wireless/rtlwifi/pci.c
+++ b/drivers/net/wireless/rtlwifi/pci.c
@@ -1696,15 +1696,17 @@ static bool _rtl_pci_find_adapter(struct pci_dev *pdev,
         pcipriv->ndis_adapter.devnumber = PCI_SLOT(pdev->devfn);
         pcipriv->ndis_adapter.funcnumber = PCI_FUNC(pdev->devfn);
 
-        /*find bridge info */
-        pcipriv->ndis_adapter.pcibridge_vendorid = bridge_pdev->vendor;
-        for (tmp = 0; tmp < PCI_BRIDGE_VENDOR_MAX; tmp++) {
-                if (bridge_pdev->vendor == pcibridge_vendors[tmp]) {
-                        pcipriv->ndis_adapter.pcibridge_vendor = tmp;
-                        RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-                                 ("Pci Bridge Vendor is found index: %d\n",
-                                  tmp));
-                        break;
+        if (bridge_pdev) {
+                /*find bridge info if available */
+                pcipriv->ndis_adapter.pcibridge_vendorid = bridge_pdev->vendor;
+                for (tmp = 0; tmp < PCI_BRIDGE_VENDOR_MAX; tmp++) {
+                        if (bridge_pdev->vendor == pcibridge_vendors[tmp]) {
+                                pcipriv->ndis_adapter.pcibridge_vendor = tmp;
+                                RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
+                                         ("Pci Bridge Vendor is found index:"
+                                         " %d\n", tmp));
+                                break;
+                        }
                 }
         }