3 files changed, 25 insertions, 5 deletions

diff --git a/drivers/net/wireless/libertas_tf/if_usb.c b/drivers/net/wireless/libertas_tf/if_usb.c
index c445500ffc61..b172f5d87a3b 100644
--- a/drivers/net/wireless/libertas_tf/if_usb.c
+++ b/drivers/net/wireless/libertas_tf/if_usb.c
@@ -538,7 +538,8 @@ static void if_usb_receive_fwload(struct urb *urb)
 		return;
 	}
 
-	syncfwheader = kmalloc(sizeof(struct fwsyncheader), GFP_ATOMIC);
+	syncfwheader = kmemdup(skb->data, sizeof(struct fwsyncheader),
+			       GFP_ATOMIC);
 	if (!syncfwheader) {
 		lbtf_deb_usbd(&cardp->udev->dev, "Failure to allocate syncfwheader\n");
 		kfree_skb(skb);
@@ -546,8 +547,6 @@ static void if_usb_receive_fwload(struct urb *urb)
 		return;
 	}
 
-	memcpy(syncfwheader, skb->data, sizeof(struct fwsyncheader));
-
 	if (!syncfwheader->cmd) {
 		lbtf_deb_usb2(&cardp->udev->dev, "FW received Blk with correct CRC\n");
 		lbtf_deb_usb2(&cardp->udev->dev, "FW received Blk seqnum = %d\n",
diff --git a/drivers/net/wireless/libertas_tf/libertas_tf.h b/drivers/net/wireless/libertas_tf/libertas_tf.h
index fbbaaae7a1ae..ad77b92d0b41 100644
--- a/drivers/net/wireless/libertas_tf/libertas_tf.h
+++ b/drivers/net/wireless/libertas_tf/libertas_tf.h
@@ -253,6 +253,9 @@ struct lbtf_private {
 	u8 fw_ready;
 	u8 surpriseremoved;
 	struct sk_buff_head bc_ps_buf;
+
+	/* Most recently reported noise in dBm */
+	s8 noise;
 };
 
 /* 802.11-related definitions */
@@ -316,7 +319,7 @@ struct cmd_header {
 	__le16 size;
 	__le16 seqnum;
 	__le16 result;
-} __attribute__ ((packed));
+} __packed;
 
 struct cmd_ctrl_node {
 	struct list_head list;
@@ -369,7 +372,7 @@ struct cmd_ds_get_hw_spec {
 
 	/*FW/HW capability */
 	__le32 fwcapinfo;
-} __attribute__ ((packed));
+} __packed;
 
 struct cmd_ds_mac_control {
 	struct cmd_header hdr;
diff --git a/drivers/net/wireless/libertas_tf/main.c b/drivers/net/wireless/libertas_tf/main.c
index 817fffc0de4b..9278b3c8ee30 100644
--- a/drivers/net/wireless/libertas_tf/main.c
+++ b/drivers/net/wireless/libertas_tf/main.c
@@ -525,6 +525,22 @@ static void lbtf_op_bss_info_changed(struct ieee80211_hw *hw,
 	lbtf_deb_leave(LBTF_DEB_MACOPS);
 }
 
+static int lbtf_op_get_survey(struct ieee80211_hw *hw, int idx,
+				struct survey_info *survey)
+{
+	struct lbtf_private *priv = hw->priv;
+	struct ieee80211_conf *conf = &hw->conf;
+
+	if (idx != 0)
+		return -ENOENT;
+
+	survey->channel = conf->channel;
+	survey->filled = SURVEY_INFO_NOISE_DBM;
+	survey->noise = priv->noise;
+
+	return 0;
+}
+
 static const struct ieee80211_ops lbtf_ops = {
 	.tx			= lbtf_op_tx,
 	.start			= lbtf_op_start,
@@ -535,6 +551,7 @@ static const struct ieee80211_ops lbtf_ops = {
 	.prepare_multicast	= lbtf_op_prepare_multicast,
 	.configure_filter	= lbtf_op_configure_filter,
 	.bss_info_changed	= lbtf_op_bss_info_changed,
+	.get_survey		= lbtf_op_get_survey,
 };
 
 int lbtf_rx(struct lbtf_private *priv, struct sk_buff *skb)
@@ -555,6 +572,7 @@ int lbtf_rx(struct lbtf_private *priv, struct sk_buff *skb)
 	stats.freq = priv->cur_freq;
 	stats.band = IEEE80211_BAND_2GHZ;
 	stats.signal = prxpd->snr;
+	priv->noise = prxpd->nf;
 	/* Marvell rate index has a hole at value 4 */
 	if (prxpd->rx_rate > 4)
 		--prxpd->rx_rate;