Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking merge from David Miller:
 "1) Move ixgbe driver over to purely page based buffering on receive.
     From Alexander Duyck.

  2) Add receive packet steering support to e1000e, from Bruce Allan.

  3) Convert TCP MD5 support over to RCU, from Eric Dumazet.

  4) Reduce cpu usage in handling out-of-order TCP packets on modern
     systems, also from Eric Dumazet.

  5) Support the IP{,V6}_UNICAST_IF socket options, making the wine
     folks happy, from Erich Hoover.

  6) Support VLAN trunking from guests in hyperv driver, from Haiyang
     Zhang.

  7) Support byte-queue-limtis in r8169, from Igor Maravic.

  8) Outline code intended for IP_RECVTOS in IP_PKTOPTIONS existed but
     was never properly implemented, Jiri Benc fixed that.

  9) 64-bit statistics support in r8169 and 8139too, from Junchang Wang.

  10) Support kernel side dump filtering by ctmark in netfilter
      ctnetlink, from Pablo Neira Ayuso.

  11) Support byte-queue-limits in gianfar driver, from Paul Gortmaker.

  12) Add new peek socket options to assist with socket migration, from
      Pavel Emelyanov.

  13) Add sch_plug packet scheduler whose queue is controlled by
      userland daemons using explicit freeze and release commands.  From
      Shriram Rajagopalan.

  14) Fix FCOE checksum offload handling on transmit, from Yi Zou."

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1846 commits)
  Fix pppol2tp getsockname()
  Remove printk from rds_sendmsg
  ipv6: fix incorrent ipv6 ipsec packet fragment
  cpsw: Hook up default ndo_change_mtu.
  net: qmi_wwan: fix build error due to cdc-wdm dependecy
  netdev: driver: ethernet: Add TI CPSW driver
  netdev: driver: ethernet: add cpsw address lookup engine support
  phy: add am79c874 PHY support
  mlx4_core: fix race on comm channel
  bonding: send igmp report for its master
  fs_enet: Add MPC5125 FEC support and PHY interface selection
  net: bpf_jit: fix BPF_S_LDX_B_MSH compilation
  net: update the usage of CHECKSUM_UNNECESSARY
  fcoe: use CHECKSUM_UNNECESSARY instead of CHECKSUM_PARTIAL on tx
  net: do not do gso for CHECKSUM_UNNECESSARY in netif_needs_gso
  ixgbe: Fix issues with SR-IOV loopback when flow control is disabled
  net/hyperv: Fix the code handling tx busy
  ixgbe: fix namespace issues when FCoE/DCB is not enabled
  rtlwifi: Remove unused ETH_ADDR_LEN defines
  igbvf: Use ETH_ALEN
  ...

Fix up fairly trivial conflicts in drivers/isdn/gigaset/interface.c and
drivers/net/usb/{Kconfig,qmi_wwan.c} as per David.

1 files changed, 132 insertions, 119 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
index a6454726737e..902efe4bc898 100644
--- a/drivers/net/wireless/iwlwifi/iwl-scan.c
+++ b/drivers/net/wireless/iwlwifi/iwl-scan.c
@@ -2,7 +2,7 @@
  *
  * GPL LICENSE SUMMARY
  *
- * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
+ * Copyright(c) 2008 - 2012 Intel Corporation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -57,39 +57,39 @@
 static int iwl_send_scan_abort(struct iwl_priv *priv)
 {
 	int ret;
-	struct iwl_rx_packet *pkt;
 	struct iwl_host_cmd cmd = {
 		.id = REPLY_SCAN_ABORT_CMD,
 		.flags = CMD_SYNC | CMD_WANT_SKB,
 	};
+	__le32 *status;
 
 	/* Exit instantly with error when device is not ready
 	 * to receive scan abort command or it does not perform
 	 * hardware scan currently */
-	if (!test_bit(STATUS_READY, &priv->shrd->status) ||
-	    !test_bit(STATUS_GEO_CONFIGURED, &priv->shrd->status) ||
-	    !test_bit(STATUS_SCAN_HW, &priv->shrd->status) ||
-	    test_bit(STATUS_FW_ERROR, &priv->shrd->status) ||
-	    test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
+	if (!test_bit(STATUS_READY, &priv->status) ||
+	    !test_bit(STATUS_GEO_CONFIGURED, &priv->status) ||
+	    !test_bit(STATUS_SCAN_HW, &priv->status) ||
+	    test_bit(STATUS_FW_ERROR, &priv->shrd->status))
 		return -EIO;
 
-	ret = iwl_trans_send_cmd(trans(priv), &cmd);
+	ret = iwl_dvm_send_cmd(priv, &cmd);
 	if (ret)
 		return ret;
 
-	pkt = (struct iwl_rx_packet *)cmd.reply_page;
-	if (pkt->u.status != CAN_ABORT_STATUS) {
+	status = (void *)cmd.resp_pkt->data;
+	if (*status != CAN_ABORT_STATUS) {
 		/* The scan abort will return 1 for success or
 		 * 2 for "failure".  A failure condition can be
 		 * due to simply not being in an active scan which
 		 * can occur if we send the scan abort before we
 		 * the microcode has notified us that a scan is
 		 * completed. */
-		IWL_DEBUG_SCAN(priv, "SCAN_ABORT ret %d.\n", pkt->u.status);
+		IWL_DEBUG_SCAN(priv, "SCAN_ABORT ret %d.\n",
+			       le32_to_cpu(*status));
 		ret = -EIO;
 	}
 
-	iwl_free_pages(priv->shrd, cmd.reply_page);
+	iwl_free_resp(&cmd);
 	return ret;
 }
 
@@ -116,20 +116,20 @@ static void iwl_process_scan_complete(struct iwl_priv *priv)
 {
 	bool aborted;
 
-	lockdep_assert_held(&priv->shrd->mutex);
+	lockdep_assert_held(&priv->mutex);
 
-	if (!test_and_clear_bit(STATUS_SCAN_COMPLETE, &priv->shrd->status))
+	if (!test_and_clear_bit(STATUS_SCAN_COMPLETE, &priv->status))
 		return;
 
 	IWL_DEBUG_SCAN(priv, "Completed scan.\n");
 
 	cancel_delayed_work(&priv->scan_check);
 
-	aborted = test_and_clear_bit(STATUS_SCAN_ABORTING, &priv->shrd->status);
+	aborted = test_and_clear_bit(STATUS_SCAN_ABORTING, &priv->status);
 	if (aborted)
 		IWL_DEBUG_SCAN(priv, "Aborted scan completed.\n");
 
-	if (!test_and_clear_bit(STATUS_SCANNING, &priv->shrd->status)) {
+	if (!test_and_clear_bit(STATUS_SCANNING, &priv->status)) {
 		IWL_DEBUG_SCAN(priv, "Scan already completed.\n");
 		goto out_settings;
 	}
@@ -165,7 +165,7 @@ out_complete:
 
 out_settings:
 	/* Can we still talk to firmware ? */
-	if (!iwl_is_ready_rf(priv->shrd))
+	if (!iwl_is_ready_rf(priv))
 		return;
 
 	iwlagn_post_scan(priv);
@@ -173,18 +173,18 @@ out_settings:
 
 void iwl_force_scan_end(struct iwl_priv *priv)
 {
-	lockdep_assert_held(&priv->shrd->mutex);
+	lockdep_assert_held(&priv->mutex);
 
-	if (!test_bit(STATUS_SCANNING, &priv->shrd->status)) {
+	if (!test_bit(STATUS_SCANNING, &priv->status)) {
 		IWL_DEBUG_SCAN(priv, "Forcing scan end while not scanning\n");
 		return;
 	}
 
 	IWL_DEBUG_SCAN(priv, "Forcing scan end\n");
-	clear_bit(STATUS_SCANNING, &priv->shrd->status);
-	clear_bit(STATUS_SCAN_HW, &priv->shrd->status);
-	clear_bit(STATUS_SCAN_ABORTING, &priv->shrd->status);
-	clear_bit(STATUS_SCAN_COMPLETE, &priv->shrd->status);
+	clear_bit(STATUS_SCANNING, &priv->status);
+	clear_bit(STATUS_SCAN_HW, &priv->status);
+	clear_bit(STATUS_SCAN_ABORTING, &priv->status);
+	clear_bit(STATUS_SCAN_COMPLETE, &priv->status);
 	iwl_complete_scan(priv, true);
 }
 
@@ -192,14 +192,14 @@ static void iwl_do_scan_abort(struct iwl_priv *priv)
 {
 	int ret;
 
-	lockdep_assert_held(&priv->shrd->mutex);
+	lockdep_assert_held(&priv->mutex);
 
-	if (!test_bit(STATUS_SCANNING, &priv->shrd->status)) {
+	if (!test_bit(STATUS_SCANNING, &priv->status)) {
 		IWL_DEBUG_SCAN(priv, "Not performing scan to abort\n");
 		return;
 	}
 
-	if (test_and_set_bit(STATUS_SCAN_ABORTING, &priv->shrd->status)) {
+	if (test_and_set_bit(STATUS_SCAN_ABORTING, &priv->status)) {
 		IWL_DEBUG_SCAN(priv, "Scan abort in progress\n");
 		return;
 	}
@@ -218,7 +218,7 @@ static void iwl_do_scan_abort(struct iwl_priv *priv)
 int iwl_scan_cancel(struct iwl_priv *priv)
 {
 	IWL_DEBUG_SCAN(priv, "Queuing abort scan\n");
-	queue_work(priv->shrd->workqueue, &priv->abort_scan);
+	queue_work(priv->workqueue, &priv->abort_scan);
 	return 0;
 }
 
@@ -231,14 +231,14 @@ void iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms)
 {
 	unsigned long timeout = jiffies + msecs_to_jiffies(ms);
 
-	lockdep_assert_held(&priv->shrd->mutex);
+	lockdep_assert_held(&priv->mutex);
 
 	IWL_DEBUG_SCAN(priv, "Scan cancel timeout\n");
 
 	iwl_do_scan_abort(priv);
 
 	while (time_before_eq(jiffies, timeout)) {
-		if (!test_bit(STATUS_SCAN_HW, &priv->shrd->status))
+		if (!test_bit(STATUS_SCAN_HW, &priv->status))
 			goto finished;
 		msleep(20);
 	}
@@ -261,13 +261,12 @@ void iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms)
 
 /* Service response to REPLY_SCAN_CMD (0x80) */
 static int iwl_rx_reply_scan(struct iwl_priv *priv,
-			      struct iwl_rx_mem_buffer *rxb,
+			      struct iwl_rx_cmd_buffer *rxb,
 			      struct iwl_device_cmd *cmd)
 {
 #ifdef CONFIG_IWLWIFI_DEBUG
 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
-	struct iwl_scanreq_notification *notif =
-	    (struct iwl_scanreq_notification *)pkt->u.raw;
+	struct iwl_scanreq_notification *notif = (void *)pkt->data;
 
 	IWL_DEBUG_SCAN(priv, "Scan request status = 0x%x\n", notif->status);
 #endif
@@ -276,12 +275,12 @@ static int iwl_rx_reply_scan(struct iwl_priv *priv,
 
 /* Service SCAN_START_NOTIFICATION (0x82) */
 static int iwl_rx_scan_start_notif(struct iwl_priv *priv,
-				    struct iwl_rx_mem_buffer *rxb,
+				    struct iwl_rx_cmd_buffer *rxb,
 				    struct iwl_device_cmd *cmd)
 {
 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
-	struct iwl_scanstart_notification *notif =
-	    (struct iwl_scanstart_notification *)pkt->u.raw;
+	struct iwl_scanstart_notification *notif = (void *)pkt->data;
+
 	priv->scan_start_tsf = le32_to_cpu(notif->tsf_low);
 	IWL_DEBUG_SCAN(priv, "Scan start: "
 		       "%d [802.11%s] "
@@ -303,13 +302,12 @@ static int iwl_rx_scan_start_notif(struct iwl_priv *priv,
 
 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
 static int iwl_rx_scan_results_notif(struct iwl_priv *priv,
-				      struct iwl_rx_mem_buffer *rxb,
+				      struct iwl_rx_cmd_buffer *rxb,
 				      struct iwl_device_cmd *cmd)
 {
 #ifdef CONFIG_IWLWIFI_DEBUG
 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
-	struct iwl_scanresults_notification *notif =
-	    (struct iwl_scanresults_notification *)pkt->u.raw;
+	struct iwl_scanresults_notification *notif = (void *)pkt->data;
 
 	IWL_DEBUG_SCAN(priv, "Scan ch.res: "
 		       "%d [802.11%s] "
@@ -329,11 +327,11 @@ static int iwl_rx_scan_results_notif(struct iwl_priv *priv,
 
 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
 static int iwl_rx_scan_complete_notif(struct iwl_priv *priv,
-				       struct iwl_rx_mem_buffer *rxb,
+				       struct iwl_rx_cmd_buffer *rxb,
 				       struct iwl_device_cmd *cmd)
 {
 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
-	struct iwl_scancomplete_notification *scan_notif = (void *)pkt->u.raw;
+	struct iwl_scancomplete_notification *scan_notif = (void *)pkt->data;
 
 	IWL_DEBUG_SCAN(priv, "Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
 		       scan_notif->scanned_channels,
@@ -352,9 +350,9 @@ static int iwl_rx_scan_complete_notif(struct iwl_priv *priv,
 	 * to clear, we need to set SCAN_COMPLETE before clearing SCAN_HW
 	 * to avoid a race there.
 	 */
-	set_bit(STATUS_SCAN_COMPLETE, &priv->shrd->status);
-	clear_bit(STATUS_SCAN_HW, &priv->shrd->status);
-	queue_work(priv->shrd->workqueue, &priv->scan_completed);
+	set_bit(STATUS_SCAN_COMPLETE, &priv->status);
+	clear_bit(STATUS_SCAN_HW, &priv->status);
+	queue_work(priv->workqueue, &priv->scan_completed);
 
 	if (priv->iw_mode != NL80211_IFTYPE_ADHOC &&
 	    iwl_advanced_bt_coexist(priv) &&
@@ -374,7 +372,7 @@ static int iwl_rx_scan_complete_notif(struct iwl_priv *priv,
 				IWL_BT_COEX_TRAFFIC_LOAD_NONE;
 		}
 		priv->bt_status = scan_notif->bt_status;
-		queue_work(priv->shrd->workqueue,
+		queue_work(priv->workqueue,
 			   &priv->bt_traffic_change_work);
 	}
 	return 0;
@@ -414,10 +412,25 @@ static u16 iwl_limit_dwell(struct iwl_priv *priv, u16 dwell_time)
 	for_each_context(priv, ctx) {
 		u16 value;
 
-		if (!iwl_is_associated_ctx(ctx))
-			continue;
-		if (ctx->staging.dev_type == RXON_DEV_TYPE_P2P)
+		switch (ctx->staging.dev_type) {
+		case RXON_DEV_TYPE_P2P:
+			/* no timing constraints */
 			continue;
+		case RXON_DEV_TYPE_ESS:
+		default:
+			/* timing constraints if associated */
+			if (!iwl_is_associated_ctx(ctx))
+				continue;
+			break;
+		case RXON_DEV_TYPE_CP:
+		case RXON_DEV_TYPE_2STA:
+			/*
+			 * These seem to always have timers for TBTT
+			 * active in uCode even when not associated yet.
+			 */
+			break;
+		}
+
 		value = ctx->beacon_int;
 		if (!value)
 			value = IWL_PASSIVE_DWELL_BASE;
@@ -559,6 +572,53 @@ static int iwl_get_channels_for_scan(struct iwl_priv *priv,
 	return added;
 }
 
+/**
+ * iwl_fill_probe_req - fill in all required fields and IE for probe request
+ */
+
+static u16 iwl_fill_probe_req(struct ieee80211_mgmt *frame, const u8 *ta,
+			      const u8 *ies, int ie_len, int left)
+{
+	int len = 0;
+	u8 *pos = NULL;
+
+	/* Make sure there is enough space for the probe request,
+	 * two mandatory IEs and the data */
+	left -= 24;
+	if (left < 0)
+		return 0;
+
+	frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
+	memcpy(frame->da, iwl_bcast_addr, ETH_ALEN);
+	memcpy(frame->sa, ta, ETH_ALEN);
+	memcpy(frame->bssid, iwl_bcast_addr, ETH_ALEN);
+	frame->seq_ctrl = 0;
+
+	len += 24;
+
+	/* ...next IE... */
+	pos = &frame->u.probe_req.variable[0];
+
+	/* fill in our indirect SSID IE */
+	left -= 2;
+	if (left < 0)
+		return 0;
+	*pos++ = WLAN_EID_SSID;
+	*pos++ = 0;
+
+	len += 2;
+
+	if (WARN_ON(left < ie_len))
+		return len;
+
+	if (ies && ie_len) {
+		memcpy(pos, ies, ie_len);
+		len += ie_len;
+	}
+
+	return (u16)len;
+}
+
 static int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)
 {
 	struct iwl_host_cmd cmd = {
@@ -581,7 +641,7 @@ static int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)
 	u8 scan_tx_antennas = hw_params(priv).valid_tx_ant;
 	int ret;
 
-	lockdep_assert_held(&priv->shrd->mutex);
+	lockdep_assert_held(&priv->mutex);
 
 	if (vif)
 		ctx = iwl_rxon_ctx_from_vif(vif);
@@ -778,7 +838,7 @@ static int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)
 	scan->rx_chain = cpu_to_le16(rx_chain);
 	switch (priv->scan_type) {
 	case IWL_SCAN_NORMAL:
-		cmd_len = iwl_fill_probe_req(priv,
+		cmd_len = iwl_fill_probe_req(
 					(struct ieee80211_mgmt *)scan->data,
 					vif->addr,
 					priv->scan_request->ie,
@@ -788,7 +848,7 @@ static int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)
 	case IWL_SCAN_RADIO_RESET:
 	case IWL_SCAN_ROC:
 		/* use bcast addr, will not be transmitted but must be valid */
-		cmd_len = iwl_fill_probe_req(priv,
+		cmd_len = iwl_fill_probe_req(
 					(struct ieee80211_mgmt *)scan->data,
 					iwl_bcast_addr, NULL, 0,
 					IWL_MAX_SCAN_SIZE - sizeof(*scan));
@@ -867,15 +927,15 @@ static int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)
 	scan->len = cpu_to_le16(cmd.len[0]);
 
 	/* set scan bit here for PAN params */
-	set_bit(STATUS_SCAN_HW, &priv->shrd->status);
+	set_bit(STATUS_SCAN_HW, &priv->status);
 
 	ret = iwlagn_set_pan_params(priv);
 	if (ret)
 		return ret;
 
-	ret = iwl_trans_send_cmd(trans(priv), &cmd);
+	ret = iwl_dvm_send_cmd(priv, &cmd);
 	if (ret) {
-		clear_bit(STATUS_SCAN_HW, &priv->shrd->status);
+		clear_bit(STATUS_SCAN_HW, &priv->status);
 		iwlagn_set_pan_params(priv);
 	}
 
@@ -898,22 +958,22 @@ int __must_check iwl_scan_initiate(struct iwl_priv *priv,
 {
 	int ret;
 
-	lockdep_assert_held(&priv->shrd->mutex);
+	lockdep_assert_held(&priv->mutex);
 
 	cancel_delayed_work(&priv->scan_check);
 
-	if (!iwl_is_ready_rf(priv->shrd)) {
+	if (!iwl_is_ready_rf(priv)) {
 		IWL_WARN(priv, "Request scan called when driver not ready.\n");
 		return -EIO;
 	}
 
-	if (test_bit(STATUS_SCAN_HW, &priv->shrd->status)) {
+	if (test_bit(STATUS_SCAN_HW, &priv->status)) {
 		IWL_DEBUG_SCAN(priv,
 			"Multiple concurrent scan requests in parallel.\n");
 		return -EBUSY;
 	}
 
-	if (test_bit(STATUS_SCAN_ABORTING, &priv->shrd->status)) {
+	if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
 		IWL_DEBUG_SCAN(priv, "Scan request while abort pending.\n");
 		return -EBUSY;
 	}
@@ -923,19 +983,19 @@ int __must_check iwl_scan_initiate(struct iwl_priv *priv,
 			scan_type == IWL_SCAN_ROC ? "remain-on-channel " :
 			"internal short ");
 
-	set_bit(STATUS_SCANNING, &priv->shrd->status);
+	set_bit(STATUS_SCANNING, &priv->status);
 	priv->scan_type = scan_type;
 	priv->scan_start = jiffies;
 	priv->scan_band = band;
 
 	ret = iwlagn_request_scan(priv, vif);
 	if (ret) {
-		clear_bit(STATUS_SCANNING, &priv->shrd->status);
+		clear_bit(STATUS_SCANNING, &priv->status);
 		priv->scan_type = IWL_SCAN_NORMAL;
 		return ret;
 	}
 
-	queue_delayed_work(priv->shrd->workqueue, &priv->scan_check,
+	queue_delayed_work(priv->workqueue, &priv->scan_check,
 			   IWL_SCAN_CHECK_WATCHDOG);
 
 	return 0;
@@ -948,7 +1008,7 @@ int __must_check iwl_scan_initiate(struct iwl_priv *priv,
  */
 void iwl_internal_short_hw_scan(struct iwl_priv *priv)
 {
-	queue_work(priv->shrd->workqueue, &priv->start_internal_scan);
+	queue_work(priv->workqueue, &priv->start_internal_scan);
 }
 
 static void iwl_bg_start_internal_scan(struct work_struct *work)
@@ -958,14 +1018,14 @@ static void iwl_bg_start_internal_scan(struct work_struct *work)
 
 	IWL_DEBUG_SCAN(priv, "Start internal scan\n");
 
-	mutex_lock(&priv->shrd->mutex);
+	mutex_lock(&priv->mutex);
 
 	if (priv->scan_type == IWL_SCAN_RADIO_RESET) {
 		IWL_DEBUG_SCAN(priv, "Internal scan already in progress\n");
 		goto unlock;
 	}
 
-	if (test_bit(STATUS_SCANNING, &priv->shrd->status)) {
+	if (test_bit(STATUS_SCANNING, &priv->status)) {
 		IWL_DEBUG_SCAN(priv, "Scan already in progress.\n");
 		goto unlock;
 	}
@@ -973,7 +1033,7 @@ static void iwl_bg_start_internal_scan(struct work_struct *work)
 	if (iwl_scan_initiate(priv, NULL, IWL_SCAN_RADIO_RESET, priv->band))
 		IWL_DEBUG_SCAN(priv, "failed to start internal short scan\n");
  unlock:
-	mutex_unlock(&priv->shrd->mutex);
+	mutex_unlock(&priv->mutex);
 }
 
 static void iwl_bg_scan_check(struct work_struct *data)
@@ -986,56 +1046,9 @@ static void iwl_bg_scan_check(struct work_struct *data)
 	/* Since we are here firmware does not finish scan and
 	 * most likely is in bad shape, so we don't bother to
 	 * send abort command, just force scan complete to mac80211 */
-	mutex_lock(&priv->shrd->mutex);
+	mutex_lock(&priv->mutex);
 	iwl_force_scan_end(priv);
-	mutex_unlock(&priv->shrd->mutex);
-}
-
-/**
- * iwl_fill_probe_req - fill in all required fields and IE for probe request
- */
-
-u16 iwl_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame,
-		       const u8 *ta, const u8 *ies, int ie_len, int left)
-{
-	int len = 0;
-	u8 *pos = NULL;
-
-	/* Make sure there is enough space for the probe request,
-	 * two mandatory IEs and the data */
-	left -= 24;
-	if (left < 0)
-		return 0;
-
-	frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
-	memcpy(frame->da, iwl_bcast_addr, ETH_ALEN);
-	memcpy(frame->sa, ta, ETH_ALEN);
-	memcpy(frame->bssid, iwl_bcast_addr, ETH_ALEN);
-	frame->seq_ctrl = 0;
-
-	len += 24;
-
-	/* ...next IE... */
-	pos = &frame->u.probe_req.variable[0];
-
-	/* fill in our indirect SSID IE */
-	left -= 2;
-	if (left < 0)
-		return 0;
-	*pos++ = WLAN_EID_SSID;
-	*pos++ = 0;
-
-	len += 2;
-
-	if (WARN_ON(left < ie_len))
-		return len;
-
-	if (ies && ie_len) {
-		memcpy(pos, ies, ie_len);
-		len += ie_len;
-	}
-
-	return (u16)len;
+	mutex_unlock(&priv->mutex);
 }
 
 static void iwl_bg_abort_scan(struct work_struct *work)
@@ -1046,9 +1059,9 @@ static void iwl_bg_abort_scan(struct work_struct *work)
 
 	/* We keep scan_check work queued in case when firmware will not
 	 * report back scan completed notification */
-	mutex_lock(&priv->shrd->mutex);
+	mutex_lock(&priv->mutex);
 	iwl_scan_cancel_timeout(priv, 200);
-	mutex_unlock(&priv->shrd->mutex);
+	mutex_unlock(&priv->mutex);
 }
 
 static void iwl_bg_scan_completed(struct work_struct *work)
@@ -1056,9 +1069,9 @@ static void iwl_bg_scan_completed(struct work_struct *work)
 	struct iwl_priv *priv =
 		container_of(work, struct iwl_priv, scan_completed);
 
-	mutex_lock(&priv->shrd->mutex);
+	mutex_lock(&priv->mutex);
 	iwl_process_scan_complete(priv);
-	mutex_unlock(&priv->shrd->mutex);
+	mutex_unlock(&priv->mutex);
 }
 
 void iwl_setup_scan_deferred_work(struct iwl_priv *priv)
@@ -1076,8 +1089,8 @@ void iwl_cancel_scan_deferred_work(struct iwl_priv *priv)
 	cancel_work_sync(&priv->scan_completed);
 
 	if (cancel_delayed_work_sync(&priv->scan_check)) {
-		mutex_lock(&priv->shrd->mutex);
+		mutex_lock(&priv->mutex);
 		iwl_force_scan_end(priv);
-		mutex_unlock(&priv->shrd->mutex);
+		mutex_unlock(&priv->mutex);
 	}
 }