iwlwifi: fix 3945 filter flags

commit 8b8ab9d5e352aae0dcae53c657b25ab61bb73f0f upstream.

Applying the filter flags directly as done since

commit 3474ad635db371b0d8d0ee40086f15d223d5b6a4
Author: Johannes Berg <johannes.berg@intel.com>
Date:   Thu Apr 29 04:43:05 2010 -0700

    iwlwifi: apply filter flags directly

broke 3945 under some unknown circumstances, as
reported by Alex.

Since I want to keep the direct application of
filter flags on iwlagn, duplicate the code into
both 3945 and agn and remove committing the
RXON that broke things from the 3945 version.

Reported-by: Alex Romosan <romosan@sycorax.lbl.gov>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

4 files changed, 94 insertions, 50 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 21b03af52aea..c7f56b4aeb89 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -3443,6 +3443,49 @@ static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
 	return 0;
 }
 
+static void iwlagn_configure_filter(struct ieee80211_hw *hw,
+				    unsigned int changed_flags,
+				    unsigned int *total_flags,
+				    u64 multicast)
+{
+	struct iwl_priv *priv = hw->priv;
+	__le32 filter_or = 0, filter_nand = 0;
+
+#define CHK(test, flag)	do { \
+	if (*total_flags & (test))		\
+		filter_or |= (flag);		\
+	else					\
+		filter_nand |= (flag);		\
+	} while (0)
+
+	IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n",
+			changed_flags, *total_flags);
+
+	CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK);
+	CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK);
+	CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);
+
+#undef CHK
+
+	mutex_lock(&priv->mutex);
+
+	priv->staging_rxon.filter_flags &= ~filter_nand;
+	priv->staging_rxon.filter_flags |= filter_or;
+
+	iwlcore_commit_rxon(priv);
+
+	mutex_unlock(&priv->mutex);
+
+	/*
+	 * Receiving all multicast frames is always enabled by the
+	 * default flags setup in iwl_connection_init_rx_config()
+	 * since we currently do not support programming multicast
+	 * filters into the device.
+	 */
+	*total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
+			FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
+}
+
 /*****************************************************************************
  *
  * driver setup and teardown
@@ -3603,7 +3646,7 @@ static struct ieee80211_ops iwl_hw_ops = {
 	.add_interface = iwl_mac_add_interface,
 	.remove_interface = iwl_mac_remove_interface,
 	.config = iwl_mac_config,
-	.configure_filter = iwl_configure_filter,
+	.configure_filter = iwlagn_configure_filter,
 	.set_key = iwl_mac_set_key,
 	.update_tkip_key = iwl_mac_update_tkip_key,
 	.conf_tx = iwl_mac_conf_tx,
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 3d4b650fabce..cd5b664e7c34 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1311,51 +1311,6 @@ out:
 EXPORT_SYMBOL(iwl_apm_init);
 
 
-
-void iwl_configure_filter(struct ieee80211_hw *hw,
-			  unsigned int changed_flags,
-			  unsigned int *total_flags,
-			  u64 multicast)
-{
-	struct iwl_priv *priv = hw->priv;
-	__le32 filter_or = 0, filter_nand = 0;
-
-#define CHK(test, flag)	do { \
-	if (*total_flags & (test))		\
-		filter_or |= (flag);		\
-	else					\
-		filter_nand |= (flag);		\
-	} while (0)
-
-	IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n",
-			changed_flags, *total_flags);
-
-	CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK);
-	CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK);
-	CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);
-
-#undef CHK
-
-	mutex_lock(&priv->mutex);
-
-	priv->staging_rxon.filter_flags &= ~filter_nand;
-	priv->staging_rxon.filter_flags |= filter_or;
-
-	iwlcore_commit_rxon(priv);
-
-	mutex_unlock(&priv->mutex);
-
-	/*
-	 * Receiving all multicast frames is always enabled by the
-	 * default flags setup in iwl_connection_init_rx_config()
-	 * since we currently do not support programming multicast
-	 * filters into the device.
-	 */
-	*total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
-			FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
-}
-EXPORT_SYMBOL(iwl_configure_filter);
-
 int iwl_set_hw_params(struct iwl_priv *priv)
 {
 	priv->hw_params.max_rxq_size = RX_QUEUE_SIZE;
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index ed4a208d0c3e..e8ef31743ad5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -356,9 +356,6 @@ int iwl_set_decrypted_flag(struct iwl_priv *priv,
 			   u32 decrypt_res,
 			   struct ieee80211_rx_status *stats);
 void iwl_irq_handle_error(struct iwl_priv *priv);
-void iwl_configure_filter(struct ieee80211_hw *hw,
-			  unsigned int changed_flags,
-			  unsigned int *total_flags, u64 multicast);
 int iwl_set_hw_params(struct iwl_priv *priv);
 void iwl_post_associate(struct iwl_priv *priv, struct ieee80211_vif *vif);
 void iwl_bss_info_changed(struct ieee80211_hw *hw,
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 0e966fc7c245..39c0d2db4927 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -3462,6 +3462,55 @@ static int iwl3945_mac_sta_add(struct ieee80211_hw *hw,
 
 	return 0;
 }
+
+static void iwl3945_configure_filter(struct ieee80211_hw *hw,
+				     unsigned int changed_flags,
+				     unsigned int *total_flags,
+				     u64 multicast)
+{
+	struct iwl_priv *priv = hw->priv;
+	__le32 filter_or = 0, filter_nand = 0;
+
+#define CHK(test, flag)	do { \
+	if (*total_flags & (test))		\
+		filter_or |= (flag);		\
+	else					\
+		filter_nand |= (flag);		\
+	} while (0)
+
+	IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n",
+			changed_flags, *total_flags);
+
+	CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK);
+	CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK);
+	CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);
+
+#undef CHK
+
+	mutex_lock(&priv->mutex);
+
+	priv->staging_rxon.filter_flags &= ~filter_nand;
+	priv->staging_rxon.filter_flags |= filter_or;
+
+	/*
+	 * Committing directly here breaks for some reason,
+	 * but we'll eventually commit the filter flags
+	 * change anyway.
+	 */
+
+	mutex_unlock(&priv->mutex);
+
+	/*
+	 * Receiving all multicast frames is always enabled by the
+	 * default flags setup in iwl_connection_init_rx_config()
+	 * since we currently do not support programming multicast
+	 * filters into the device.
+	 */
+	*total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
+			FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
+}
+
+
 /*****************************************************************************
  *
  * sysfs attributes
@@ -3867,7 +3916,7 @@ static struct ieee80211_ops iwl3945_hw_ops = {
 	.add_interface = iwl_mac_add_interface,
 	.remove_interface = iwl_mac_remove_interface,
 	.config = iwl_mac_config,
-	.configure_filter = iwl_configure_filter,
+	.configure_filter = iwl3945_configure_filter,
 	.set_key = iwl3945_mac_set_key,
 	.conf_tx = iwl_mac_conf_tx,
 	.reset_tsf = iwl_mac_reset_tsf,