6 files changed, 31 insertions, 12 deletions

diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 22047628ccfa..b6c5d3715b96 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -72,6 +72,11 @@ static int modparam_all_channels;
 module_param_named(all_channels, modparam_all_channels, bool, S_IRUGO);
 MODULE_PARM_DESC(all_channels, "Expose all channels the device can use.");
 
+static int modparam_fastchanswitch;
+module_param_named(fastchanswitch, modparam_fastchanswitch, bool, S_IRUGO);
+MODULE_PARM_DESC(fastchanswitch, "Enable fast channel switching for AR2413/AR5413 radios.");
+
+
 /* Module info */
 MODULE_AUTHOR("Jiri Slaby");
 MODULE_AUTHOR("Nick Kossifidis");
@@ -2686,6 +2691,7 @@ ath5k_reset(struct ath5k_softc *sc, struct ieee80211_channel *chan,
 	struct ath5k_hw *ah = sc->ah;
 	struct ath_common *common = ath5k_hw_common(ah);
 	int ret, ani_mode;
+	bool fast;
 
 	ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "resetting\n");
 
@@ -2705,7 +2711,10 @@ ath5k_reset(struct ath5k_softc *sc, struct ieee80211_channel *chan,
 	ath5k_drain_tx_buffs(sc);
 	if (chan)
 		sc->curchan = chan;
-	ret = ath5k_hw_reset(ah, sc->opmode, sc->curchan, chan != NULL,
+
+	fast = ((chan != NULL) && modparam_fastchanswitch) ? 1 : 0;
+
+	ret = ath5k_hw_reset(ah, sc->opmode, sc->curchan, fast,
 								skip_pcu);
 	if (ret) {
 		ATH5K_ERR(sc, "can't reset hardware (%d)\n", ret);
diff --git a/drivers/net/wireless/ath/ath5k/desc.c b/drivers/net/wireless/ath/ath5k/desc.c
index 62172d585723..f82383b3ed30 100644
--- a/drivers/net/wireless/ath/ath5k/desc.c
+++ b/drivers/net/wireless/ath/ath5k/desc.c
@@ -107,10 +107,13 @@ ath5k_hw_setup_2word_tx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
 		case AR5K_PKT_TYPE_BEACON:
 		case AR5K_PKT_TYPE_PROBE_RESP:
 			frame_type = AR5K_AR5210_TX_DESC_FRAME_TYPE_NO_DELAY;
+			break;
 		case AR5K_PKT_TYPE_PIFS:
 			frame_type = AR5K_AR5210_TX_DESC_FRAME_TYPE_PIFS;
+			break;
 		default:
 			frame_type = type;
+			break;
 		}
 
 		tx_ctl->tx_control_0 |=
diff --git a/drivers/net/wireless/ath/ath5k/eeprom.c b/drivers/net/wireless/ath/ath5k/eeprom.c
index 1fef84f87c78..392771f93759 100644
--- a/drivers/net/wireless/ath/ath5k/eeprom.c
+++ b/drivers/net/wireless/ath/ath5k/eeprom.c
@@ -691,14 +691,12 @@ ath5k_eeprom_free_pcal_info(struct ath5k_hw *ah, int mode)
 		if (!chinfo[pier].pd_curves)
 			continue;
 
-		for (pdg = 0; pdg < ee->ee_pd_gains[mode]; pdg++) {
+		for (pdg = 0; pdg < AR5K_EEPROM_N_PD_CURVES; pdg++) {
 			struct ath5k_pdgain_info *pd =
 					&chinfo[pier].pd_curves[pdg];
 
-			if (pd != NULL) {
-				kfree(pd->pd_step);
-				kfree(pd->pd_pwr);
-			}
+			kfree(pd->pd_step);
+			kfree(pd->pd_pwr);
 		}
 
 		kfree(chinfo[pier].pd_curves);
diff --git a/drivers/net/wireless/ath/ath5k/pci.c b/drivers/net/wireless/ath/ath5k/pci.c
index 296c316a8341..f2c0c236392f 100644
--- a/drivers/net/wireless/ath/ath5k/pci.c
+++ b/drivers/net/wireless/ath/ath5k/pci.c
@@ -297,7 +297,9 @@ ath5k_pci_remove(struct pci_dev *pdev)
 #ifdef CONFIG_PM_SLEEP
 static int ath5k_pci_suspend(struct device *dev)
 {
-	struct ath5k_softc *sc = pci_get_drvdata(to_pci_dev(dev));
+	struct pci_dev *pdev = to_pci_dev(dev);
+	struct ieee80211_hw *hw = pci_get_drvdata(pdev);
+	struct ath5k_softc *sc = hw->priv;
 
 	ath5k_led_off(sc);
 	return 0;
@@ -306,7 +308,8 @@ static int ath5k_pci_suspend(struct device *dev)
 static int ath5k_pci_resume(struct device *dev)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
-	struct ath5k_softc *sc = pci_get_drvdata(pdev);
+	struct ieee80211_hw *hw = pci_get_drvdata(pdev);
+	struct ath5k_softc *sc = hw->priv;
 
 	/*
 	 * Suspend/Resume resets the PCI configuration space, so we have to
diff --git a/drivers/net/wireless/ath/ath5k/reset.c b/drivers/net/wireless/ath/ath5k/reset.c
index 3510de2cf622..126a4eab35f3 100644
--- a/drivers/net/wireless/ath/ath5k/reset.c
+++ b/drivers/net/wireless/ath/ath5k/reset.c
@@ -1124,8 +1124,11 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum nl80211_iftype op_mode,
 			/* Non fatal, can happen eg.
 			 * on mode change */
 			ret = 0;
-		} else
+		} else {
+			ATH5K_DBG(ah->ah_sc, ATH5K_DEBUG_RESET,
+				"fast chan change successful\n");
 			return 0;
+		}
 	}
 
 	/*
diff --git a/drivers/net/wireless/ath/ath5k/sysfs.c b/drivers/net/wireless/ath/ath5k/sysfs.c
index 929c68cdf8ab..a073cdce1f15 100644
--- a/drivers/net/wireless/ath/ath5k/sysfs.c
+++ b/drivers/net/wireless/ath/ath5k/sysfs.c
@@ -10,7 +10,8 @@ static ssize_t ath5k_attr_show_##name(struct device *dev,		\
 			struct device_attribute *attr,			\
 			char *buf)					\
 {									\
-	struct ath5k_softc *sc = dev_get_drvdata(dev);			\
+	struct ieee80211_hw *hw = dev_get_drvdata(dev);			\
+	struct ath5k_softc *sc = hw->priv;				\
 	return snprintf(buf, PAGE_SIZE, "%d\n", get); 			\
 }									\
 									\
@@ -18,7 +19,8 @@ static ssize_t ath5k_attr_store_##name(struct device *dev,		\
 			struct device_attribute *attr,			\
 			const char *buf, size_t count)			\
 {									\
-	struct ath5k_softc *sc = dev_get_drvdata(dev);			\
+	struct ieee80211_hw *hw = dev_get_drvdata(dev);			\
+	struct ath5k_softc *sc = hw->priv;				\
 	int val;							\
 									\
 	val = (int)simple_strtoul(buf, NULL, 10);			\
@@ -33,7 +35,8 @@ static ssize_t ath5k_attr_show_##name(struct device *dev,		\
 			struct device_attribute *attr,			\
 			char *buf)					\
 {									\
-	struct ath5k_softc *sc = dev_get_drvdata(dev);			\
+	struct ieee80211_hw *hw = dev_get_drvdata(dev);			\
+	struct ath5k_softc *sc = hw->priv;				\
 	return snprintf(buf, PAGE_SIZE, "%d\n", get); 			\
 }									\
 static DEVICE_ATTR(name, S_IRUGO, ath5k_attr_show_##name, NULL)