Merge 17c66e9e49a181498ae3c75809c98fdbe630de28 on remote branch

Change-Id: I49238aefe09bba152a8000c046959157c328f183

10 files changed, 215 insertions, 114 deletions

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bus.h b/drivers/net/wireless/brcm80211/brcmfmac/bus.h
index 230cad788ace..84b8b1eaa22c 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bus.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bus.h
@@ -214,7 +214,9 @@ bool brcmf_c_prec_enq(struct device *dev, struct pktq *q, struct sk_buff *pkt,
 		      int prec);
 
 /* Receive frame for delivery to OS.  Callee disposes of rxp. */
-void brcmf_rx_frame(struct device *dev, struct sk_buff *rxp);
+void brcmf_rx_frame(struct device *dev, struct sk_buff *rxp, bool handle_event);
+/* Receive async event packet from firmware. Callee disposes of rxp. */
+void brcmf_rx_event(struct device *dev, struct sk_buff *rxp);
 
 /* Indication from bus module regarding presence/insertion of dongle. */
 int brcmf_attach(struct device *dev);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c
index ad35e760ed3f..231c0ba6acb9 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c
@@ -3328,9 +3328,15 @@ brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
 	struct brcmf_pno_scanresults_le *pfn_result;
 	u32 result_count;
 	u32 status;
+	u32 datalen;
 
 	brcmf_dbg(SCAN, "Enter\n");
 
+	if (e->datalen < (sizeof(*pfn_result) + sizeof(*netinfo))) {
+		brcmf_dbg(SCAN, "Event data to small. Ignore\n");
+		return 0;
+	}
+
 	if (e->event_code == BRCMF_E_PFN_NET_LOST) {
 		brcmf_dbg(SCAN, "PFN NET LOST event. Do Nothing\n");
 		return 0;
@@ -3349,6 +3355,14 @@ brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
 	if (result_count > 0) {
 		int i;
 
+		data += sizeof(struct brcmf_pno_scanresults_le);
+		netinfo_start = (struct brcmf_pno_net_info_le *)data;
+		datalen = e->datalen - ((void *)netinfo_start - (void *)pfn_result);
+		if (datalen < result_count * sizeof(*netinfo)) {
+			brcmf_err("insufficient event data\n");
+			goto out_err;
+		}
+
 		request = kzalloc(sizeof(*request), GFP_KERNEL);
 		ssid = kcalloc(result_count, sizeof(*ssid), GFP_KERNEL);
 		channel = kcalloc(result_count, sizeof(*channel), GFP_KERNEL);
@@ -3358,9 +3372,6 @@ brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
 		}
 
 		request->wiphy = wiphy;
-		data += sizeof(struct brcmf_pno_scanresults_le);
-		netinfo_start = (struct brcmf_pno_net_info_le *)data;
-
 		for (i = 0; i < result_count; i++) {
 			netinfo = &netinfo_start[i];
 			if (!netinfo) {
@@ -3370,6 +3381,8 @@ brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
 				goto out_err;
 			}
 
+			if (netinfo->SSID_len > IEEE80211_MAX_SSID_LEN)
+				netinfo->SSID_len = IEEE80211_MAX_SSID_LEN;
 			brcmf_dbg(SCAN, "SSID:%s Channel:%d\n",
 				  netinfo->SSID, netinfo->channel);
 			memcpy(ssid[i].ssid, netinfo->SSID, netinfo->SSID_len);
@@ -4836,6 +4849,8 @@ static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg,
 		conn_info->req_ie =
 		    kmemdup(cfg->extra_buf, conn_info->req_ie_len,
 			    GFP_KERNEL);
+		if (!conn_info->req_ie)
+			conn_info->req_ie_len = 0;
 	} else {
 		conn_info->req_ie_len = 0;
 		conn_info->req_ie = NULL;
@@ -4852,6 +4867,8 @@ static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg,
 		conn_info->resp_ie =
 		    kmemdup(cfg->extra_buf, conn_info->resp_ie_len,
 			    GFP_KERNEL);
+		if (!conn_info->resp_ie)
+			conn_info->resp_ie_len = 0;
 	} else {
 		conn_info->resp_ie_len = 0;
 		conn_info->resp_ie = NULL;
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/core.c b/drivers/net/wireless/brcm80211/brcmfmac/core.c
index 82753e7c7e7c..3082391c3062 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/core.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/core.c
@@ -303,15 +303,9 @@ void brcmf_txflowblock(struct device *dev, bool state)
 
 void brcmf_netif_rx(struct brcmf_if *ifp, struct sk_buff *skb)
 {
-	skb->dev = ifp->ndev;
-	skb->protocol = eth_type_trans(skb, skb->dev);
-
 	if (skb->pkt_type == PACKET_MULTICAST)
 		ifp->stats.multicast++;
 
-	/* Process special event packets */
-	brcmf_fweh_process_skb(ifp->drvr, skb);
-
 	if (!(ifp->ndev->flags & IFF_UP)) {
 		brcmu_pkt_buf_free_skb(skb);
 		return;
@@ -526,7 +520,7 @@ netif_rx:
 	}
 }
 
-void brcmf_rx_frame(struct device *dev, struct sk_buff *skb)
+void brcmf_rx_frame(struct device *dev, struct sk_buff *skb, bool handle_event)
 {
 	struct brcmf_if *ifp;
 	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
@@ -546,11 +540,44 @@ void brcmf_rx_frame(struct device *dev, struct sk_buff *skb)
 		return;
 	}
 
+	skb->protocol = eth_type_trans(skb, ifp->ndev);
+
 	rd = (struct brcmf_skb_reorder_data *)skb->cb;
-	if (rd->reorder)
+	if (rd->reorder) {
 		brcmf_rxreorder_process_info(ifp, rd->reorder, skb);
-	else
+	} else {
+		/* Process special event packets */
+		if (handle_event)
+			brcmf_fweh_process_skb(ifp->drvr, skb,
+					       BCMILCP_SUBTYPE_VENDOR_LONG);
+
 		brcmf_netif_rx(ifp, skb);
+	}
+}
+
+void brcmf_rx_event(struct device *dev, struct sk_buff *skb)
+{
+	struct brcmf_if *ifp;
+	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
+	struct brcmf_pub *drvr = bus_if->drvr;
+	int ret;
+
+	brcmf_dbg(EVENT, "Enter: %s: rxp=%p\n", dev_name(dev), skb);
+
+	/* process and remove protocol-specific header */
+	ret = brcmf_proto_hdrpull(drvr, true, skb, &ifp);
+
+	if (ret || !ifp || !ifp->ndev) {
+		if (ret != -ENODATA && ifp)
+			ifp->stats.rx_errors++;
+		brcmu_pkt_buf_free_skb(skb);
+		return;
+	}
+
+	skb->protocol = eth_type_trans(skb, ifp->ndev);
+
+	brcmf_fweh_process_skb(ifp->drvr, skb, 0);
+	brcmu_pkt_buf_free_skb(skb);
 }
 
 void brcmf_txfinalize(struct brcmf_if *ifp, struct sk_buff *txp, bool success)
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fweh.c b/drivers/net/wireless/brcm80211/brcmfmac/fweh.c
index 3878b6f6cfce..f9aa37032c2d 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fweh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fweh.c
@@ -26,50 +26,6 @@
 #include "fwil.h"
 
 /**
- * struct brcm_ethhdr - broadcom specific ether header.
- *
- * @subtype: subtype for this packet.
- * @length: TODO: length of appended data.
- * @version: version indication.
- * @oui: OUI of this packet.
- * @usr_subtype: subtype for this OUI.
- */
-struct brcm_ethhdr {
-	__be16 subtype;
-	__be16 length;
-	u8 version;
-	u8 oui[3];
-	__be16 usr_subtype;
-} __packed;
-
-struct brcmf_event_msg_be {
-	__be16 version;
-	__be16 flags;
-	__be32 event_type;
-	__be32 status;
-	__be32 reason;
-	__be32 auth_type;
-	__be32 datalen;
-	u8 addr[ETH_ALEN];
-	char ifname[IFNAMSIZ];
-	u8 ifidx;
-	u8 bsscfgidx;
-} __packed;
-
-/**
- * struct brcmf_event - contents of broadcom event packet.
- *
- * @eth: standard ether header.
- * @hdr: broadcom specific ether header.
- * @msg: common part of the actual event message.
- */
-struct brcmf_event {
-	struct ethhdr eth;
-	struct brcm_ethhdr hdr;
-	struct brcmf_event_msg_be msg;
-} __packed;
-
-/**
  * struct brcmf_fweh_queue_item - event item on event queue.
  *
  * @q: list element for queuing.
@@ -85,6 +41,7 @@ struct brcmf_fweh_queue_item {
 	u8 ifidx;
 	u8 ifaddr[ETH_ALEN];
 	struct brcmf_event_msg_be emsg;
+	u32 datalen;
 	u8 data[0];
 };
 
@@ -294,6 +251,11 @@ static void brcmf_fweh_event_worker(struct work_struct *work)
 		brcmf_dbg_hex_dump(BRCMF_EVENT_ON(), event->data,
 				   min_t(u32, emsg.datalen, 64),
 				   "event payload, len=%d\n", emsg.datalen);
+		if (emsg.datalen > event->datalen) {
+			brcmf_err("event invalid length header=%d, msg=%d\n",
+				  event->datalen, emsg.datalen);
+			goto event_free;
+		}
 
 		/* special handling of interface event */
 		if (event->code == BRCMF_E_IF) {
@@ -439,7 +401,8 @@ int brcmf_fweh_activate_events(struct brcmf_if *ifp)
  * dispatch the event to a registered handler (using worker).
  */
 void brcmf_fweh_process_event(struct brcmf_pub *drvr,
-			      struct brcmf_event *event_packet)
+			      struct brcmf_event *event_packet,
+			      u32 packet_len)
 {
 	enum brcmf_fweh_event_code code;
 	struct brcmf_fweh_info *fweh = &drvr->fweh;
@@ -459,6 +422,9 @@ void brcmf_fweh_process_event(struct brcmf_pub *drvr,
 	if (code != BRCMF_E_IF && !fweh->evt_handler[code])
 		return;
 
+	if (datalen > BRCMF_DCMD_MAXLEN)
+		return;
+
 	if (in_interrupt())
 		alloc_flag = GFP_ATOMIC;
 
@@ -472,6 +438,7 @@ void brcmf_fweh_process_event(struct brcmf_pub *drvr,
 	/* use memcpy to get aligned event message */
 	memcpy(&event->emsg, &event_packet->msg, sizeof(event->emsg));
 	memcpy(event->data, data, datalen);
+	event->datalen = datalen;
 	memcpy(event->ifaddr, event_packet->eth.h_dest, ETH_ALEN);
 
 	brcmf_fweh_queue_event(fweh, event);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fweh.h b/drivers/net/wireless/brcm80211/brcmfmac/fweh.h
index d9a942842382..b53db92341ce 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fweh.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fweh.h
@@ -27,7 +27,6 @@
 struct brcmf_pub;
 struct brcmf_if;
 struct brcmf_cfg80211_info;
-struct brcmf_event;
 
 /* list of firmware events */
 #define BRCMF_FWEH_EVENT_ENUM_DEFLIST \
@@ -180,11 +179,53 @@ enum brcmf_fweh_event_code {
 /**
  * definitions for event packet validation.
  */
-#define BRCMF_EVENT_OUI_OFFSET		19
-#define BRCM_OUI			"\x00\x10\x18"
-#define DOT11_OUI_LEN			3
-#define BCMILCP_BCM_SUBTYPE_EVENT	1
+#define BRCM_OUI				"\x00\x10\x18"
+#define BCMILCP_BCM_SUBTYPE_EVENT		1
+#define BCMILCP_SUBTYPE_VENDOR_LONG		32769
 
+/**
+ * struct brcm_ethhdr - broadcom specific ether header.
+ *
+ * @subtype: subtype for this packet.
+ * @length: TODO: length of appended data.
+ * @version: version indication.
+ * @oui: OUI of this packet.
+ * @usr_subtype: subtype for this OUI.
+ */
+struct brcm_ethhdr {
+	__be16 subtype;
+	__be16 length;
+	u8 version;
+	u8 oui[3];
+	__be16 usr_subtype;
+} __packed;
+
+struct brcmf_event_msg_be {
+	__be16 version;
+	__be16 flags;
+	__be32 event_type;
+	__be32 status;
+	__be32 reason;
+	__be32 auth_type;
+	__be32 datalen;
+	u8 addr[ETH_ALEN];
+	char ifname[IFNAMSIZ];
+	u8 ifidx;
+	u8 bsscfgidx;
+} __packed;
+
+/**
+ * struct brcmf_event - contents of broadcom event packet.
+ *
+ * @eth: standard ether header.
+ * @hdr: broadcom specific ether header.
+ * @msg: common part of the actual event message.
+ */
+struct brcmf_event {
+	struct ethhdr eth;
+	struct brcm_ethhdr hdr;
+	struct brcmf_event_msg_be msg;
+} __packed;
 
 /**
  * struct brcmf_event_msg - firmware event message.
@@ -256,34 +297,43 @@ void brcmf_fweh_unregister(struct brcmf_pub *drvr,
 			   enum brcmf_fweh_event_code code);
 int brcmf_fweh_activate_events(struct brcmf_if *ifp);
 void brcmf_fweh_process_event(struct brcmf_pub *drvr,
-			      struct brcmf_event *event_packet);
+			      struct brcmf_event *event_packet,
+			      u32 packet_len);
 void brcmf_fweh_p2pdev_setup(struct brcmf_if *ifp, bool ongoing);
 
 static inline void brcmf_fweh_process_skb(struct brcmf_pub *drvr,
-					  struct sk_buff *skb)
+					  struct sk_buff *skb, u16 stype)
 {
 	struct brcmf_event *event_packet;
-	u8 *data;
-	u16 usr_stype;
+	u16 subtype, usr_stype;
 
 	/* only process events when protocol matches */
 	if (skb->protocol != cpu_to_be16(ETH_P_LINK_CTL))
 		return;
 
-	/* check for BRCM oui match */
+	if ((skb->len + ETH_HLEN) < sizeof(*event_packet))
+		return;
+
 	event_packet = (struct brcmf_event *)skb_mac_header(skb);
-	data = (u8 *)event_packet;
-	data += BRCMF_EVENT_OUI_OFFSET;
-	if (memcmp(BRCM_OUI, data, DOT11_OUI_LEN))
+
+	/* check subtype if needed */
+	if (unlikely(stype)) {
+		subtype = get_unaligned_be16(&event_packet->hdr.subtype);
+		if (subtype != stype)
+			return;
+	}
+
+	/* check for BRCM oui match */
+	if (memcmp(BRCM_OUI, &event_packet->hdr.oui[0],
+		   sizeof(event_packet->hdr.oui)))
 		return;
 
 	/* final match on usr_subtype */
-	data += DOT11_OUI_LEN;
-	usr_stype = get_unaligned_be16(data);
+	usr_stype = get_unaligned_be16(&event_packet->hdr.usr_subtype);
 	if (usr_stype != BCMILCP_BCM_SUBTYPE_EVENT)
 		return;
 
-	brcmf_fweh_process_event(drvr, event_packet);
+	brcmf_fweh_process_event(drvr, event_packet, skb->len + ETH_HLEN);
 }
 
 #endif /* FWEH_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c b/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c
index 44e618f9d890..6f7138cea555 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c
@@ -20,6 +20,7 @@
 
 #include <linux/types.h>
 #include <linux/netdevice.h>
+#include <linux/etherdevice.h>
 
 #include <brcmu_utils.h>
 #include <brcmu_wifi.h>
@@ -1076,28 +1077,13 @@ static void brcmf_msgbuf_rxbuf_event_post(struct brcmf_msgbuf *msgbuf)
 }
 
 
-static void
-brcmf_msgbuf_rx_skb(struct brcmf_msgbuf *msgbuf, struct sk_buff *skb,
-		    u8 ifidx)
-{
-	struct brcmf_if *ifp;
-
-	ifp = brcmf_get_ifp(msgbuf->drvr, ifidx);
-	if (!ifp || !ifp->ndev) {
-		brcmf_err("Received pkt for invalid ifidx %d\n", ifidx);
-		brcmu_pkt_buf_free_skb(skb);
-		return;
-	}
-	brcmf_netif_rx(ifp, skb);
-}
-
-
 static void brcmf_msgbuf_process_event(struct brcmf_msgbuf *msgbuf, void *buf)
 {
 	struct msgbuf_rx_event *event;
 	u32 idx;
 	u16 buflen;
 	struct sk_buff *skb;
+	struct brcmf_if *ifp;
 
 	event = (struct msgbuf_rx_event *)buf;
 	idx = le32_to_cpu(event->msg.request_id);
@@ -1117,7 +1103,19 @@ static void brcmf_msgbuf_process_event(struct brcmf_msgbuf *msgbuf, void *buf)
 
 	skb_trim(skb, buflen);
 
-	brcmf_msgbuf_rx_skb(msgbuf, skb, event->msg.ifidx);
+	ifp = brcmf_get_ifp(msgbuf->drvr, event->msg.ifidx);
+	if (!ifp || !ifp->ndev) {
+		brcmf_err("Received pkt for invalid ifidx %d\n",
+			  event->msg.ifidx);
+		goto exit;
+	}
+
+	skb->protocol = eth_type_trans(skb, ifp->ndev);
+
+	brcmf_fweh_process_skb(ifp->drvr, skb, 0);
+
+exit:
+	brcmu_pkt_buf_free_skb(skb);
 }
 
 
@@ -1129,6 +1127,7 @@ brcmf_msgbuf_process_rx_complete(struct brcmf_msgbuf *msgbuf, void *buf)
 	u16 data_offset;
 	u16 buflen;
 	u32 idx;
+	struct brcmf_if *ifp;
 
 	brcmf_msgbuf_update_rxbufpost_count(msgbuf, 1);
 
@@ -1149,7 +1148,14 @@ brcmf_msgbuf_process_rx_complete(struct brcmf_msgbuf *msgbuf, void *buf)
 
 	skb_trim(skb, buflen);
 
-	brcmf_msgbuf_rx_skb(msgbuf, skb, rx_complete->msg.ifidx);
+	ifp = brcmf_get_ifp(msgbuf->drvr, rx_complete->msg.ifidx);
+	if (!ifp || !ifp->ndev) {
+		brcmf_err("Received pkt for invalid ifidx %d\n",
+			  rx_complete->msg.ifidx);
+		brcmu_pkt_buf_free_skb(skb);
+		return;
+	}
+	brcmf_netif_rx(ifp, skb);
 }
 
 
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
index 3196245ab820..e6c8b0d5afe0 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
@@ -1365,6 +1365,11 @@ int brcmf_p2p_notify_action_frame_rx(struct brcmf_if *ifp,
 	u16 mgmt_type;
 	u8 action;
 
+	if (e->datalen < sizeof(*rxframe)) {
+		brcmf_dbg(SCAN, "Event data to small. Ignore\n");
+		return 0;
+	}
+
 	ch.chspec = be16_to_cpu(rxframe->chanspec);
 	cfg->d11inf.decchspec(&ch);
 	/* Check if wpa_supplicant has registered for this frame */
@@ -1862,6 +1867,11 @@ s32 brcmf_p2p_notify_rx_mgmt_p2p_probereq(struct brcmf_if *ifp,
 	brcmf_dbg(INFO, "Enter: event %d reason %d\n", e->event_code,
 		  e->reason);
 
+	if (e->datalen < sizeof(*rxframe)) {
+		brcmf_dbg(SCAN, "Event data to small. Ignore\n");
+		return 0;
+	}
+
 	ch.chspec = be16_to_cpu(rxframe->chanspec);
 	cfg->d11inf.decchspec(&ch);
 
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/sdio.c
index b4d9b47584d6..b082b8859b17 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio.c
@@ -1394,6 +1394,17 @@ static inline u8 brcmf_sdio_getdatoffset(u8 *swheader)
 	return (u8)((hdrvalue & SDPCM_DOFFSET_MASK) >> SDPCM_DOFFSET_SHIFT);
 }
 
+static inline bool brcmf_sdio_fromevntchan(u8 *swheader)
+{
+	u32 hdrvalue;
+	u8 ret;
+
+	hdrvalue = *(u32 *)swheader;
+	ret = (u8)((hdrvalue & SDPCM_CHANNEL_MASK) >> SDPCM_CHANNEL_SHIFT);
+
+	return (ret == SDPCM_EVENT_CHANNEL);
+}
+
 static int brcmf_sdio_hdparse(struct brcmf_sdio *bus, u8 *header,
 			      struct brcmf_sdio_hdrinfo *rd,
 			      enum brcmf_sdio_frmtype type)
@@ -1754,7 +1765,11 @@ static u8 brcmf_sdio_rxglom(struct brcmf_sdio *bus, u8 rxseq)
 					   pfirst->len, pfirst->next,
 					   pfirst->prev);
 			skb_unlink(pfirst, &bus->glom);
-			brcmf_rx_frame(bus->sdiodev->dev, pfirst);
+			if (brcmf_sdio_fromevntchan(&dptr[SDPCM_HWHDR_LEN]))
+				brcmf_rx_event(bus->sdiodev->dev, pfirst);
+			else
+				brcmf_rx_frame(bus->sdiodev->dev, pfirst,
+					       false);
 			bus->sdcnt.rxglompkts++;
 		}
 
@@ -2081,18 +2096,19 @@ static uint brcmf_sdio_readframes(struct brcmf_sdio *bus, uint maxframes)
 		__skb_trim(pkt, rd->len);
 		skb_pull(pkt, rd->dat_offset);
 
+		if (pkt->len == 0)
+			brcmu_pkt_buf_free_skb(pkt);
+		else if (rd->channel == SDPCM_EVENT_CHANNEL)
+			brcmf_rx_event(bus->sdiodev->dev, pkt);
+		else
+			brcmf_rx_frame(bus->sdiodev->dev, pkt,
+				       false);
+
 		/* prepare the descriptor for the next read */
 		rd->len = rd->len_nxtfrm << 4;
 		rd->len_nxtfrm = 0;
 		/* treat all packet as event if we don't know */
 		rd->channel = SDPCM_EVENT_CHANNEL;
-
-		if (pkt->len == 0) {
-			brcmu_pkt_buf_free_skb(pkt);
-			continue;
-		}
-
-		brcmf_rx_frame(bus->sdiodev->dev, pkt);
 	}
 
 	rxcount = maxframes - rxleft;
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/usb.c b/drivers/net/wireless/brcm80211/brcmfmac/usb.c
index 689e64d004bc..3002268e57f3 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/usb.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/usb.c
@@ -144,7 +144,7 @@ struct brcmf_usbdev_info {
 
 	struct usb_device *usbdev;
 	struct device *dev;
-	struct mutex dev_init_lock;
+	struct completion dev_init_done;
 
 	int ctl_in_pipe, ctl_out_pipe;
 	struct urb *ctl_urb; /* URB for control endpoint */
@@ -502,7 +502,7 @@ static void brcmf_usb_rx_complete(struct urb *urb)
 
 	if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP) {
 		skb_put(skb, urb->actual_length);
-		brcmf_rx_frame(devinfo->dev, skb);
+		brcmf_rx_frame(devinfo->dev, skb, true);
 		brcmf_usb_rx_refill(devinfo, req);
 	} else {
 		brcmu_pkt_buf_free_skb(skb);
@@ -669,12 +669,18 @@ static int brcmf_usb_up(struct device *dev)
 
 static void brcmf_cancel_all_urbs(struct brcmf_usbdev_info *devinfo)
 {
+	int i;
+
 	if (devinfo->ctl_urb)
 		usb_kill_urb(devinfo->ctl_urb);
 	if (devinfo->bulk_urb)
 		usb_kill_urb(devinfo->bulk_urb);
-	brcmf_usb_free_q(&devinfo->tx_postq, true);
-	brcmf_usb_free_q(&devinfo->rx_postq, true);
+	if (devinfo->tx_reqs)
+		for (i = 0; i < devinfo->bus_pub.ntxq; i++)
+			usb_kill_urb(devinfo->tx_reqs[i].urb);
+	if (devinfo->rx_reqs)
+		for (i = 0; i < devinfo->bus_pub.nrxq; i++)
+			usb_kill_urb(devinfo->rx_reqs[i].urb);
 }
 
 static void brcmf_usb_down(struct device *dev)
@@ -1226,11 +1232,11 @@ static void brcmf_usb_probe_phase2(struct device *dev,
 	if (ret)
 		goto error;
 
-	mutex_unlock(&devinfo->dev_init_lock);
+	complete(&devinfo->dev_init_done);
 	return;
 error:
 	brcmf_dbg(TRACE, "failed: dev=%s, err=%d\n", dev_name(dev), ret);
-	mutex_unlock(&devinfo->dev_init_lock);
+	complete(&devinfo->dev_init_done);
 	device_release_driver(dev);
 }
 
@@ -1268,7 +1274,7 @@ static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo)
 		if (ret)
 			goto fail;
 		/* we are done */
-		mutex_unlock(&devinfo->dev_init_lock);
+		complete(&devinfo->dev_init_done);
 		return 0;
 	}
 	bus->chip = bus_pub->devid;
@@ -1322,11 +1328,10 @@ brcmf_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
 
 	devinfo->usbdev = usb;
 	devinfo->dev = &usb->dev;
-	/* Take an init lock, to protect for disconnect while still loading.
+	/* Init completion, to protect for disconnect while still loading.
 	 * Necessary because of the asynchronous firmware load construction
 	 */
-	mutex_init(&devinfo->dev_init_lock);
-	mutex_lock(&devinfo->dev_init_lock);
+	init_completion(&devinfo->dev_init_done);
 
 	usb_set_intfdata(intf, devinfo);
 
@@ -1402,7 +1407,7 @@ brcmf_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
 	return 0;
 
 fail:
-	mutex_unlock(&devinfo->dev_init_lock);
+	complete(&devinfo->dev_init_done);
 	kfree(devinfo);
 	usb_set_intfdata(intf, NULL);
 	return ret;
@@ -1417,7 +1422,7 @@ brcmf_usb_disconnect(struct usb_interface *intf)
 	devinfo = (struct brcmf_usbdev_info *)usb_get_intfdata(intf);
 
 	if (devinfo) {
-		mutex_lock(&devinfo->dev_init_lock);
+		wait_for_completion(&devinfo->dev_init_done);
 		/* Make sure that devinfo still exists. Firmware probe routines
 		 * may have released the device and cleared the intfdata.
 		 */
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/vendor.c b/drivers/net/wireless/brcm80211/brcmfmac/vendor.c
index 8eff2753abad..d493021f6031 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/vendor.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/vendor.c
@@ -35,9 +35,10 @@ static int brcmf_cfg80211_vndr_cmds_dcmd_handler(struct wiphy *wiphy,
 	struct brcmf_if *ifp;
 	const struct brcmf_vndr_dcmd_hdr *cmdhdr = data;
 	struct sk_buff *reply;
-	int ret, payload, ret_len;
+	unsigned int payload, ret_len;
 	void *dcmd_buf = NULL, *wr_pointer;
 	u16 msglen, maxmsglen = PAGE_SIZE - 0x100;
+	int ret;
 
 	if (len < sizeof(*cmdhdr)) {
 		brcmf_err("vendor command too short: %d\n", len);
@@ -65,7 +66,7 @@ static int brcmf_cfg80211_vndr_cmds_dcmd_handler(struct wiphy *wiphy,
 			brcmf_err("oversize return buffer %d\n", ret_len);
 			ret_len = BRCMF_DCMD_MAXLEN;
 		}
-		payload = max(ret_len, len) + 1;
+		payload = max_t(unsigned int, ret_len, len) + 1;
 		dcmd_buf = vzalloc(payload);
 		if (NULL == dcmd_buf)
 			return -ENOMEM;