net: wireless: bcmdhd: Update to Version 5.90.195.61

- Deauth frame from p2p GO to client doesn't go from firmware if we do del_virtual_iface immediately. Putting a delay after sending deauth frame to allowed FW to send out deauth frame. - IF_DEL operation was timing out due to wrong status check. Fixed it and added few debug prints. - Sending Provision Discovery directly to GO instead of doing an internal scan. Also put the internal scan count to 3 to have better timings for GO-NEG. - Increase beacon timeout only for concurrent mode. For STA only operation, use the default beacon timeout value (4). - If scan abort is due to timeout, aborting the scan in FW is not required. Moreover, as this scan_timeout call is coming in timer interrupt context, all blocking calls such as fw scan abort will result in kernel panic : don’t call abort in Firmware. - Add p2p_cancel_listen routine. Fix p2p_listen_complete related kernel crash seen while turning off WiFi. Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
2026-06-10 21:07:02 +09:00 · 2012-05-01 11:00:21 -07:00
parent 216527eb23
commit d60ec08410
10 changed files with 154 additions and 60 deletions
--- a/drivers/net/wireless/bcmdhd/dhd.h
+++ b/drivers/net/wireless/bcmdhd/dhd.h
@@ -24,11 +24,12 @@
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
- * $Id: dhd.h 325862 2012-04-04 22:59:48Z $
+ * $Id: dhd.h 328934 2012-04-23 05:15:42Z $
 */

-
-
+/****************
+ * Common types *
+ */

 #ifndef _dhd_h_
 #define _dhd_h_
@@ -90,6 +91,9 @@ enum dhd_bus_state {
 #define DHD_SCAN_ACTIVE_TIME	 40 /* ms : Embedded default Active setting from DHD Driver */
 #define DHD_SCAN_PASSIVE_TIME	130 /* ms: Embedded default Passive setting from DHD Driver */

+#define DHD_BEACON_TIMEOUT_NORMAL	4
+#define DHD_BEACON_TIMEOUT_HIGH		10
+
 enum dhd_bus_wake_state {
 	WAKE_LOCK_OFF,
 	WAKE_LOCK_PRIV,
--- a/drivers/net/wireless/bcmdhd/dhd_cfg80211.c
+++ b/drivers/net/wireless/bcmdhd/dhd_cfg80211.c
@@ -41,7 +41,9 @@ static int dhd_dongle_up = FALSE;

 static s32 wl_dongle_up(struct net_device *ndev, u32 up);

-
+/**
+ * Function implementations
+ */

 s32 dhd_cfg80211_init(struct wl_priv *wl)
 {
@@ -70,13 +72,22 @@ s32 dhd_cfg80211_down(struct wl_priv *wl)
 s32 dhd_cfg80211_set_p2p_info(struct wl_priv *wl, int val)
 {
 	dhd_pub_t *dhd =  (dhd_pub_t *)(wl->pub);
+	int bcn_timeout = DHD_BEACON_TIMEOUT_HIGH;
+	char iovbuf[30];
+
 	dhd->op_mode |= val;
 	WL_ERR(("Set : op_mode=%d\n", dhd->op_mode));

 #ifdef ARP_OFFLOAD_SUPPORT
+	/* IF P2P is enabled, disable arpoe */
 	dhd_arp_offload_set(dhd, 0);
 	dhd_arp_offload_enable(dhd, false);
-#endif
+#endif /* ARP_OFFLOAD_SUPPORT */
+
+	/* Setup timeout if Beacons are lost and roam is off to report link down */
+	bcm_mkiovar("bcn_timeout", (char *)&bcn_timeout, 4, iovbuf, sizeof(iovbuf));
+	dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
+

 	return 0;
 }
@@ -84,13 +95,21 @@ s32 dhd_cfg80211_set_p2p_info(struct wl_priv *wl, int val)
 s32 dhd_cfg80211_clean_p2p_info(struct wl_priv *wl)
 {
 	dhd_pub_t *dhd =  (dhd_pub_t *)(wl->pub);
+	int bcn_timeout = DHD_BEACON_TIMEOUT_NORMAL;
+	char iovbuf[30];
+
 	dhd->op_mode &= ~CONCURENT_MASK;
 	WL_ERR(("Clean : op_mode=%d\n", dhd->op_mode));

 #ifdef ARP_OFFLOAD_SUPPORT
+	/* IF P2P is disabled, enable arpoe back for STA mode. */
 	dhd_arp_offload_set(dhd, dhd_arp_mode);
 	dhd_arp_offload_enable(dhd, true);
-#endif
+#endif /* ARP_OFFLOAD_SUPPORT */
+
+	/* Setup timeout if Beacons are lost and roam is off to report link down */
+	bcm_mkiovar("bcn_timeout", (char *)&bcn_timeout, 4, iovbuf, sizeof(iovbuf));
+	dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);

 	return 0;
 }
--- a/drivers/net/wireless/bcmdhd/dhd_common.c
+++ b/drivers/net/wireless/bcmdhd/dhd_common.c
@@ -21,7 +21,7 @@
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
- * $Id: dhd_common.c 319098 2012-03-07 01:05:20Z $
+ * $Id: dhd_common.c 329682 2012-04-26 09:20:38Z $
 */
 #include <typedefs.h>
 #include <osl.h>
@@ -996,6 +996,9 @@ wl_host_event(dhd_pub_t *dhd_pub, int *ifidx, void *pktdata,
 	datalen = ntoh32_ua((void *)&event->datalen);
 	evlen = datalen + sizeof(bcm_event_t);

+	DHD_TRACE(("RX: event_type:%d flags:%d status:%d reason:%d \n",
+								type, flags, status, reason));
+
 	switch (type) {
 #ifdef PROP_TXSTATUS
 	case WLC_E_FIFO_CREDIT_MAP:
@@ -1723,6 +1726,7 @@ fail:

 /*
 * returns = TRUE if associated, FALSE if not associated
+ * third paramter retval can return error from error
 */
 bool dhd_is_associated(dhd_pub_t *dhd, void *bss_buf, int *retval)
 {
@@ -1891,7 +1895,7 @@ dhd_pno_enable(dhd_pub_t *dhd, int pfn_enabled)
 		DHD_ERROR(("%s pno is NOT enable : called in assoc mode , ignore\n", __FUNCTION__));
 		return ret;
 	}
-#endif
+#endif /* !WL_SCHED_SCAN */

 	/* Enable/disable PNO */
 	if ((ret = bcm_mkiovar("pfn", (char *)&pfn_enabled, 4, iovbuf, sizeof(iovbuf))) > 0) {
--- a/drivers/net/wireless/bcmdhd/dhd_linux.c
+++ b/drivers/net/wireless/bcmdhd/dhd_linux.c
@@ -22,7 +22,7 @@
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
- * $Id: dhd_linux.c 325862 2012-04-04 22:59:48Z $
+ * $Id: dhd_linux.c 329682 2012-04-26 09:20:38Z $
 */

 #include <typedefs.h>
@@ -1472,6 +1472,7 @@ dhd_rx_frame(dhd_pub_t *dhdp, int ifidx, void *pktbuf, int numpkt, uint8 chan)
 			*/
 			((athost_wl_status_info_t*)dhdp->wlfc_state)->stats.wlfc_header_only_pkt++;
 			PKTFREE(dhdp->osh, pktbuf, TRUE);
+			DHD_TRACE(("RX: wlfc header \n"));
 			continue;
 		}
 #endif
@@ -2962,7 +2963,8 @@ dhd_preinit_ioctls(dhd_pub_t *dhd)
 	uint power_mode = PM_FAST;
 	uint32 dongle_align = DHD_SDALIGN;
 	uint32 glom = 0;
-	uint bcn_timeout = 10;
+	uint bcn_timeout = DHD_BEACON_TIMEOUT_NORMAL;
+
 	uint retry_max = 3;
 #if defined(ARP_OFFLOAD_SUPPORT)
 	int arpoe = 1;
--- a/drivers/net/wireless/bcmdhd/dhd_sdio.c
+++ b/drivers/net/wireless/bcmdhd/dhd_sdio.c
@@ -21,7 +21,7 @@
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
- * $Id: dhd_sdio.c 325395 2012-04-03 03:57:43Z $
+ * $Id: dhd_sdio.c 326662 2012-04-10 06:38:08Z $
 */

 #include <typedefs.h>
@@ -4616,8 +4616,7 @@ clkwait:
 		int ret, i;
 		uint8* frame_seq = bus->ctrl_frame_buf + SDPCM_FRAMETAG_LEN;

-		if (((bus->sih->chip == BCM4329_CHIP_ID) ||   /* limit to 4329 & 4330 for now  */
-			 (bus->sih->chip == BCM4330_CHIP_ID)) && (*frame_seq != bus->tx_seq)) {
+		if (*frame_seq != bus->tx_seq) {
 			DHD_INFO(("%s IOCTL frame seq lag detected!"
 				" frm_seq:%d != bus->tx_seq:%d, corrected\n",
 				__FUNCTION__, *frame_seq, bus->tx_seq));
--- a/drivers/net/wireless/bcmdhd/include/epivers.h
+++ b/drivers/net/wireless/bcmdhd/include/epivers.h
@@ -32,17 +32,17 @@

 #define	EPI_RC_NUMBER		195

-#define	EPI_INCREMENTAL_NUMBER	53
+#define	EPI_INCREMENTAL_NUMBER	61

 #define	EPI_BUILD_NUMBER	0

-#define	EPI_VERSION		5, 90, 195, 53
+#define	EPI_VERSION		5, 90, 195, 61

-#define	EPI_VERSION_NUM		0x055ac335
+#define	EPI_VERSION_NUM		0x055ac33d

 #define EPI_VERSION_DEV		5.90.195


-#define	EPI_VERSION_STR		"5.90.195.53"
+#define	EPI_VERSION_STR		"5.90.195.61"

 #endif 
--- a/drivers/net/wireless/bcmdhd/wl_cfg80211.c
+++ b/drivers/net/wireless/bcmdhd/wl_cfg80211.c
@@ -100,7 +100,10 @@ static const struct ieee80211_regdomain brcm_regdom = {
 		 * we need cfg80211 to allow it (reg_flags = 0); so that
 		 * hostapd could request auto channel by sending down ch 14
 		 */
-		REG_RULE(2484-10, 2484+10, 20, 6, 20, 0),
+		REG_RULE(2484-10, 2484+10, 20, 6, 20,
+		NL80211_RRF_PASSIVE_SCAN |
+		NL80211_RRF_NO_IBSS |
+		NL80211_RRF_NO_OFDM),
 		/* IEEE 802.11a, channel 36..64 */
 		REG_RULE(5150-10, 5350+10, 40, 6, 20, 0),
 		/* IEEE 802.11a, channel 100..165 */
@@ -735,7 +738,7 @@ wl_cfg80211_add_virtual_iface(struct wiphy *wiphy, char *name,
 	s32 mode = 0;
 #if defined(WL_ENABLE_P2P_IF)
 	s32 dhd_mode = 0;
-#endif
+#endif /* (WL_ENABLE_P2P_IF) */
 	chanspec_t chspec;
 	struct wl_priv *wl = wiphy_priv(wiphy);
 	struct net_device *_ndev;
@@ -807,7 +810,7 @@ wl_cfg80211_add_virtual_iface(struct wiphy *wiphy, char *name,
 				return ERR_PTR(-EAGAIN);
 			}
 		}
-		if (!p2p_is_on(wl) && strstr(name, WL_P2P_INTERFACE_PREFIX)) {
+		if (wl->p2p && !wl->p2p->on && strstr(name, WL_P2P_INTERFACE_PREFIX)) {
 			p2p_on(wl) = true;
 			wl_cfgp2p_set_firm_p2p(wl);
 			wl_cfgp2p_init_discovery(wl);
@@ -819,7 +822,8 @@ wl_cfg80211_add_virtual_iface(struct wiphy *wiphy, char *name,
 		memset(wl->p2p->vir_ifname, 0, IFNAMSIZ);
 		strncpy(wl->p2p->vir_ifname, name, IFNAMSIZ - 1);

-
+		wldev_iovar_setint(_ndev, "mpc", 0);
+		wl_notify_escan_complete(wl, _ndev, true, true);
 		/* In concurrency case, STA may be already associated in a particular channel.
 		 * so retrieve the current channel of primary interface and then start the virtual
 		 * interface on that.
@@ -874,8 +878,10 @@ wl_cfg80211_add_virtual_iface(struct wiphy *wiphy, char *name,
 				else if (type == NL80211_IFTYPE_P2P_GO)
 					dhd_mode = P2P_GO_ENABLED;
 				DNGL_FUNC(dhd_cfg80211_set_p2p_info, (wl, dhd_mode));
-#endif
-
+#endif /* (WL_ENABLE_P2P_IF) */
+				/* Start the P2P I/F with PM disabled. Enable PM from
+				 * the framework
+				 */
 				 if ((type == NL80211_IFTYPE_P2P_CLIENT) || (
 					 type == NL80211_IFTYPE_P2P_GO))
 					vwdev->ps = NL80211_PS_DISABLED;
@@ -920,7 +926,7 @@ wl_cfg80211_del_virtual_iface(struct wiphy *wiphy, struct net_device *dev)
 	if (wl->p2p_supported) {
 		memcpy(p2p_mac.octet, wl->p2p->int_addr.octet, ETHER_ADDR_LEN);
 		if (wl->p2p->vif_created) {
-			if (wl->scan_request) {
+			if (wl_get_drv_status(wl, SCANNING, dev)) {
 				wl_notify_escan_complete(wl, dev, true, true);
 			}
 			wldev_iovar_setint(dev, "mpc", 1);
@@ -948,7 +954,7 @@ wl_cfg80211_del_virtual_iface(struct wiphy *wiphy, struct net_device *dev)
 				WL_DBG(("IFDEL operation done\n"));
 #if  defined(WL_ENABLE_P2P_IF)
 				DNGL_FUNC(dhd_cfg80211_clean_p2p_info, (wl));
-#endif
+#endif /*  (WL_ENABLE_P2P_IF)) */
 			} else {
 				WL_ERR(("IFDEL didn't complete properly\n"));
 			}
@@ -972,7 +978,7 @@ wl_cfg80211_change_virtual_iface(struct wiphy *wiphy, struct net_device *ndev,
 	chanspec_t chspec;
 	struct wl_priv *wl = wiphy_priv(wiphy);

-	WL_DBG(("Enter \n"));
+	WL_DBG(("Enter type %d\n", type));
 	switch (type) {
 	case NL80211_IFTYPE_MONITOR:
 	case NL80211_IFTYPE_WDS:
@@ -1003,8 +1009,10 @@ wl_cfg80211_change_virtual_iface(struct wiphy *wiphy, struct net_device *ndev,
 		wl_set_mode_by_netdev(wl, ndev, mode);
 		if (wl->p2p_supported && wl->p2p->vif_created) {
 			WL_DBG(("p2p_vif_created (%d) p2p_on (%d)\n", wl->p2p->vif_created,
-			p2p_on(wl)));
+				p2p_on(wl)));
 			wldev_iovar_setint(ndev, "mpc", 0);
+			wl_notify_escan_complete(wl, ndev, true, true);
+
 			/* In concurrency case, STA may be already associated in a particular
 			 * channel. so retrieve the current channel of primary interface and
 			 * then start the virtual interface on that.
@@ -1121,6 +1129,7 @@ wl_cfg80211_ifdel_ops(struct net_device *ndev)
 		WL_DBG(("index : %d\n", index));

 	}
+
 	/* Wake up any waiting thread */
 	wake_up_interruptible(&wl->netif_change_event);

@@ -2007,7 +2016,11 @@ wl_set_set_cipher(struct net_device *dev, struct cfg80211_connect_params *sme)
 	WL_DBG(("pval (%d) gval (%d)\n", pval, gval));

 	if (is_wps_conn(sme)) {
-		err = wldev_iovar_setint_bsscfg(dev, "wsec", 4, bssidx);
+		if (sme->privacy)
+			err = wldev_iovar_setint_bsscfg(dev, "wsec", 4, bssidx);
+		else
+			/* WPS-2.0 allowes no security */
+			err = wldev_iovar_setint_bsscfg(dev, "wsec", 0, bssidx);
 	} else {
 		WL_DBG((" NO, is_wps_conn, Set pval | gval to WSEC"));
 		err = wldev_iovar_setint_bsscfg(dev, "wsec",
@@ -2847,7 +2860,6 @@ wl_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 		err = -ENODEV;
 		if (!wl_get_drv_status(wl, CONNECTED, dev) ||
 			(dhd_is_associated(dhd, NULL, &err) == FALSE)) {
-
 			WL_ERR(("NOT assoc: %d\n", err));
 			goto get_station_err;
 		}
@@ -3168,7 +3180,7 @@ wl_cfg80211_scan_alloc_params(int channel, int nprobes, int *out_params_size)

 	/* Our scan params have 1 channel and 0 ssids */
 	params->channel_num = htod32((0 << WL_SCAN_PARAMS_NSSID_SHIFT) |
-	(num_chans & WL_SCAN_PARAMS_COUNT_MASK));
+		(num_chans & WL_SCAN_PARAMS_COUNT_MASK));

 	*out_params_size = params_size;	/* rtn size to the caller */
 	return params;
@@ -3195,7 +3207,7 @@ wl_cfg80211_remain_on_channel(struct wiphy *wiphy, struct net_device *dev,
 		ndev = dev;
 	}

-	if (wl->scan_request) {
+	if (wl_get_drv_status(wl, SCANNING, ndev)) {
 		wl_notify_escan_complete(wl, ndev, true, true);
 	}
 	target_channel = ieee80211_frequency_to_channel(channel->center_freq);
@@ -3207,7 +3219,7 @@ wl_cfg80211_remain_on_channel(struct wiphy *wiphy, struct net_device *dev,
 	*cookie = id;
 	cfg80211_ready_on_channel(dev, *cookie, channel,
 		channel_type, duration, GFP_KERNEL);
-	if (!p2p_is_on(wl)) {
+	if (wl->p2p && !wl->p2p->on) {
 		get_primary_mac(wl, &primary_mac);
 		wl_cfgp2p_generate_bss_mac(&primary_mac, &wl->p2p->dev_addr, &wl->p2p->int_addr);

@@ -3331,7 +3343,11 @@ wl_cfg80211_mgmt_tx(struct wiphy *wiphy, struct net_device *ndev,
 	struct ieee80211_channel *channel, bool offchan,
 	enum nl80211_channel_type channel_type,
 	bool channel_type_valid, unsigned int wait,
-	const u8* buf, size_t len, u64 *cookie)
+	const u8* buf, size_t len,
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 2, 0)
+	bool no_cck,
+#endif
+	u64 *cookie)
 {
 	wl_action_frame_t *action_frame;
 	wl_af_params_t *af_params;
@@ -3418,6 +3434,10 @@ wl_cfg80211_mgmt_tx(struct wiphy *wiphy, struct net_device *ndev,
 			WL_DBG(("Disconnect STA : %s scb_val.val %d\n",
 				bcm_ether_ntoa((const struct ether_addr *)mgmt->da, eabuf),
 				scb_val.val));
+			/* Wait for the deauth event to come, supplicant will do the delete iface immediately
+			 * and we will have problem in sending deauth frame if we delete the bss in firmware
+			 */
+			wl_delay(400);
 			cfg80211_mgmt_tx_status(ndev, *cookie, buf, len, true, GFP_KERNEL);
 			goto exit;

@@ -3521,7 +3541,7 @@ wl_cfg80211_mgmt_tx(struct wiphy *wiphy, struct net_device *ndev,
 	}

 	if (IS_P2P_SOCIAL(af_params->channel) &&
-		(IS_P2P_PUB_ACT_REQ(act_frm, action_frame->len) ||
+		(IS_P2P_PUB_ACT_REQ(act_frm, &act_frm->elts[0], action_frame->len) ||
 		IS_GAS_REQ(sd_act_frm, action_frame->len)) &&
 		wl_to_p2p_bss_saved_ie(wl, P2PAPI_BSSCFG_DEVICE).p2p_probe_req_ie_len) {
 		/* channel offload require P2P IE for Probe request
@@ -3534,7 +3554,7 @@ wl_cfg80211_mgmt_tx(struct wiphy *wiphy, struct net_device *ndev,
 	} else {
 		ack = (wl_cfgp2p_tx_action_frame(wl, dev, af_params, bssidx)) ? false : true;
 		if (!ack) {
-				for (retry = 1; retry < WL_CHANNEL_SYNC_RETRY; retry++) {
+				for (retry = 1; retry < retry_cnt; retry++) {
 					ack = (wl_cfgp2p_tx_action_frame(wl, dev,
 						af_params, bssidx)) ? false : true;
 					if (ack)
@@ -4771,17 +4791,24 @@ wl_notify_connect_status(struct wl_priv *wl, struct net_device *ndev,
 	bool act;
 	s32 err = 0;
 	u32 event = ntoh32(e->event_type);
+	u32 reason;

 	if (wl_get_mode_by_netdev(wl, ndev) == WL_MODE_AP) {
 		wl_notify_connect_status_ap(wl, ndev, e, data);
 	} else {
 		WL_DBG(("wl_notify_connect_status : event %d status : %d ndev %p\n",
 			ntoh32(e->event_type), ntoh32(e->status), ndev));
+		if((event == WLC_E_DEAUTH_IND) || (event == WLC_E_DISASSOC_IND)) {
+			reason = ntoh32(e->reason);
+			wl->deauth_reason = reason;
+			WL_ERR(("Received %s event with reason code: %d\n", (event == WLC_E_DEAUTH_IND)? "WLC_E_DEAUTH_IND":"WLC_E_DISASSOC_IND", reason));
+		}
 		if (wl_is_linkup(wl, e, ndev)) {
 			wl_link_up(wl);
 			act = true;
 			wl_update_prof(wl, ndev, e, &act, WL_PROF_ACT);
 			wl_update_prof(wl, ndev, NULL, (void *)&e->addr, WL_PROF_BSSID);
+			wl->deauth_reason = 0;
 			if (wl_is_ibssmode(wl, ndev)) {
 				printk("cfg80211_ibss_joined\n");
 				cfg80211_ibss_joined(ndev, (s8 *)&e->addr,
@@ -4809,7 +4836,6 @@ wl_notify_connect_status(struct wl_priv *wl, struct net_device *ndev,
 			if (wl_get_drv_status(wl, CONNECTED, ndev)) {
 				scb_val_t scbval;
 				u8 *curbssid = wl_read_prof(wl, ndev, WL_PROF_BSSID);
-				printk("link down, call cfg80211_disconnected\n");
 				wl_clr_drv_status(wl, CONNECTED, ndev);
 				if (! wl_get_drv_status(wl, DISCONNECTING, ndev)) {
 					/* To make sure disconnect, explictly send dissassoc
@@ -4821,7 +4847,8 @@ wl_notify_connect_status(struct wl_priv *wl, struct net_device *ndev,
 					scbval.val = htod32(scbval.val);
 					wldev_ioctl(ndev, WLC_DISASSOC, &scbval,
 						sizeof(scb_val_t), true);
-					cfg80211_disconnected(ndev, 0, NULL, 0, GFP_KERNEL);
+					WL_ERR(("link down, calling cfg80211_disconnected with deauth_reason:%d\n", wl->deauth_reason));
+					cfg80211_disconnected(ndev, wl->deauth_reason , NULL, 0, GFP_KERNEL);
 					wl_link_down(wl);
 					wl_init_prof(wl, ndev);
 				}
@@ -5821,7 +5848,7 @@ static void wl_scan_timeout(unsigned long data)
 	if (wl->scan_request) {
 		WL_ERR(("timer expired\n"));
 		if (wl->escan_on)
-			wl_notify_escan_complete(wl, wl->escan_info.ndev, false, true);
+			wl_notify_escan_complete(wl, wl->escan_info.ndev, true, false);
 		else
 			wl_notify_iscan_complete(wl_to_iscan(wl), true);
 	}
@@ -5877,7 +5904,7 @@ wl_cfg80211_netdev_notifier_call(struct notifier_block * nb,
 	struct wl_priv *wl = wlcfg_drv_priv;

 	WL_DBG(("Enter \n"));
-	if (!wdev || dev == wl_to_prmry_ndev(wl))
+	if (!wdev || !wl || dev == wl_to_prmry_ndev(wl))
 		return NOTIFY_DONE;
 	switch (state) {
 		case NETDEV_UNREGISTER:
@@ -5942,7 +5969,7 @@ static s32 wl_notify_escan_complete(struct wl_priv *wl,
 			}
 		}
 	}
-	if (!in_atomic())
+	if (timer_pending(&wl->scan_timeout))
 		del_timer_sync(&wl->scan_timeout);
 	spin_lock_irqsave(&wl->cfgdrv_lock, flags);

@@ -5984,7 +6011,6 @@ static s32 wl_escan_handler(struct wl_priv *wl,
 	wl_scan_results_t *list;
 	u32 bi_length;
 	u32 i;
-	u8 *p2p_dev_addr = NULL;

 	WL_DBG((" enter event type : %d, status : %d \n",
 		ntoh32(e->event_type), ntoh32(e->status)));
@@ -6033,8 +6059,7 @@ static s32 wl_escan_handler(struct wl_priv *wl,
 		}

 		if (wl_get_drv_status_all(wl, SENDING_ACT_FRM)) {
-			p2p_dev_addr = wl_cfgp2p_retreive_p2p_dev_addr(bi, bi_length);
-			if (p2p_dev_addr && !memcmp(p2p_dev_addr,
+			if (!memcmp(bi->BSSID.octet,
 				wl->afx_hdl->pending_tx_dst_addr.octet, ETHER_ADDR_LEN)) {
 				s32 channel = CHSPEC_CHANNEL(dtohchanspec(bi->chanspec));
 				WL_DBG(("ACTION FRAME SCAN : Peer found, channel : %d\n", channel));
@@ -6187,6 +6212,7 @@ static s32 wl_init_priv(struct wl_priv *wl)
 	wl->iscan_kickstart = false;
 	wl->active_scan = true;
 	wl->rf_blocked = false;
+	wl->deauth_reason = 0;
 	spin_lock_init(&wl->cfgdrv_lock);
 	mutex_init(&wl->ioctl_buf_sync);
 	init_waitqueue_head(&wl->netif_change_event);
@@ -6711,12 +6737,16 @@ s32 wl_update_wiphybands(struct wl_priv *wl)
 		}
 		if ((index >= 0) && nmode) {
 			wiphy->bands[index]->ht_cap.cap =
-			IEEE80211_HT_CAP_DSSSCCK40
-			| IEEE80211_HT_CAP_MAX_AMSDU | IEEE80211_HT_CAP_RX_STBC;
+				IEEE80211_HT_CAP_SGI_20 | IEEE80211_HT_CAP_DSSSCCK40 |
+				IEEE80211_HT_CAP_MAX_AMSDU;
 			wiphy->bands[index]->ht_cap.ht_supported = TRUE;
-			wiphy->bands[index]->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K;
+			wiphy->bands[index]->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
 			wiphy->bands[index]->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
 		}
+
+		if ((index >= 0) && bw_40) {
+			wiphy->bands[index]->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
+		}
 	}

 	wiphy_apply_custom_regulatory(wiphy, &brcm_regdom);
@@ -7043,7 +7073,8 @@ static void wl_init_eq_lock(struct wl_priv *wl)

 static void wl_delay(u32 ms)
 {
-	if (in_atomic() || ms < 1000 / HZ) {
+	if (ms < 1000 / HZ) {
+		cond_resched();
 		mdelay(ms);
 	} else {
 		msleep(ms);
--- a/drivers/net/wireless/bcmdhd/wl_cfg80211.h
+++ b/drivers/net/wireless/bcmdhd/wl_cfg80211.h
@@ -131,8 +131,8 @@ do {									\
 #define IFACE_MAX_CNT 		2

 #define WL_SCAN_TIMER_INTERVAL_MS	8000 /* Scan timeout */
-#define WL_CHANNEL_SYNC_RETRY 	1
-#define WL_ACT_FRAME_RETRY 5
+#define WL_CHANNEL_SYNC_RETRY 	3
+#define WL_ACT_FRAME_RETRY 4

 #define WL_INVALID 		-1

@@ -449,6 +449,7 @@ struct wl_priv {
 #endif /* WL_SCHED_SCAN */
 	bool sched_scan_running;	/* scheduled scan req status */
 	u16 hostapd_chan;            /* remember chan requested by framework for hostapd  */
+	u16 deauth_reason;           /* Place holder to save deauth/disassoc reasons */
 };

 static inline struct wl_bss_info *next_bss(struct wl_scan_results *list, struct wl_bss_info *bss)
--- a/drivers/net/wireless/bcmdhd/wl_cfgp2p.c
+++ b/drivers/net/wireless/bcmdhd/wl_cfgp2p.c
@@ -105,6 +105,7 @@ bool wl_cfgp2p_is_p2p_action(void *frame, u32 frame_len)

 	return false;
 }
+
 bool wl_cfgp2p_is_gas_action(void *frame, u32 frame_len)
 {

@@ -128,6 +129,7 @@ bool wl_cfgp2p_is_gas_action(void *frame, u32 frame_len)
 		return false;

 }
+
 void wl_cfgp2p_print_actframe(bool tx, void *frame, u32 frame_len)
 {
 	wifi_p2p_pub_act_frame_t *pact_frm;
@@ -271,7 +273,6 @@ wl_cfgp2p_init_priv(struct wl_priv *wl)
 	wl_to_p2p_bss_bssidx(wl, P2PAPI_BSSCFG_DEVICE) = 0;
 	wl_to_p2p_bss_ndev(wl, P2PAPI_BSSCFG_CONNECTION) = NULL;
 	wl_to_p2p_bss_bssidx(wl, P2PAPI_BSSCFG_CONNECTION) = 0;
-	spin_lock_init(&wl->p2p->timer_lock);
 	return BCME_OK;

 }
@@ -318,7 +319,7 @@ wl_cfgp2p_set_firm_p2p(struct wl_priv *wl)
 	ret = wldev_iovar_setbuf_bsscfg(ndev, "p2p_da_override", &null_eth_addr,
 		sizeof(null_eth_addr), wl->ioctl_buf, WLC_IOCTL_MAXLEN, 0, &wl->ioctl_buf_sync);
 	if (ret && ret != BCME_UNSUPPORTED) {
-		CFGP2P_ERR(("failed to update device address\n"));
+		CFGP2P_ERR(("failed to update device address ret %d\n", ret));
 	}
 	return ret;
 }
@@ -539,7 +540,7 @@ wl_cfgp2p_init_discovery(struct wl_priv *wl)

 	/* Set the initial discovery state to SCAN */
 	ret = wl_cfgp2p_set_p2p_mode(wl, WL_P2P_DISC_ST_SCAN, 0, 0,
-	        wl_to_p2p_bss_bssidx(wl, P2PAPI_BSSCFG_DEVICE));
+		wl_to_p2p_bss_bssidx(wl, P2PAPI_BSSCFG_DEVICE));

 	if (unlikely(ret != 0)) {
 		CFGP2P_ERR(("unable to set WL_P2P_DISC_ST_SCAN\n"));
@@ -690,7 +691,7 @@ wl_cfgp2p_escan(struct wl_priv *wl, struct net_device *dev, u16 active,
 #define P2PAPI_SCAN_NPROBES 1
 #define P2PAPI_SCAN_DWELL_TIME_MS 50
 #define P2PAPI_SCAN_SOCIAL_DWELL_TIME_MS 40
-#define P2PAPI_SCAN_HOME_TIME_MS 10
+#define P2PAPI_SCAN_HOME_TIME_MS 60
 	struct net_device *pri_dev = wl_to_p2p_bss_ndev(wl, P2PAPI_BSSCFG_PRIMARY);
 	wl_set_p2p_status(wl, SCANNING);
 	/* Allocate scan params which need space for 3 channels and 0 ssids */
@@ -1180,12 +1181,15 @@ wl_cfgp2p_listen_complete(struct wl_priv *wl, struct net_device *ndev,
 	s32 ret = BCME_OK;

 	CFGP2P_DBG((" Enter\n"));
+
+	/* If p2p_info is de-initialized, do nothing  */
+	if (!wl->p2p)
+		return ret;
+
 	if (wl_get_p2p_status(wl, LISTEN_EXPIRED) == 0) {
 		wl_set_p2p_status(wl, LISTEN_EXPIRED);
 		if (timer_pending(&wl->p2p->listen_timer)) {
-			spin_lock_bh(&wl->p2p->timer_lock);
 			del_timer_sync(&wl->p2p->listen_timer);
-			spin_unlock_bh(&wl->p2p->timer_lock);
 		}
 		cfg80211_remain_on_channel_expired(ndev, wl->last_roc_id, &wl->remain_on_chan,
 		    wl->remain_on_chan_type, GFP_KERNEL);
@@ -1212,6 +1216,33 @@ wl_cfgp2p_listen_expired(unsigned long data)
 	wl_cfg80211_event(wl_to_p2p_bss_ndev(wl, P2PAPI_BSSCFG_DEVICE), &msg, NULL);
 }

+/*
+ *  Routine for cancelling the P2P LISTEN
+ */
+s32
+wl_cfgp2p_cancel_listen(struct wl_priv *wl, struct net_device *ndev,
+                         bool notify)
+{
+	WL_DBG(("Enter \n"));
+
+	/* Irrespective of whether timer is running or not, reset
+	 * the LISTEN state.
+	 */
+	wl_cfgp2p_set_p2p_mode(wl, WL_P2P_DISC_ST_SCAN, 0, 0,
+		wl_to_p2p_bss_bssidx(wl, P2PAPI_BSSCFG_DEVICE));
+
+	if (timer_pending(&wl->p2p->listen_timer)) {
+		del_timer_sync(&wl->p2p->listen_timer);
+
+		if (notify)
+			cfg80211_remain_on_channel_expired(ndev, wl->last_roc_id,
+				&wl->remain_on_chan, wl->remain_on_chan_type, GFP_KERNEL);
+	}
+
+
+	return 0;
+}
+
 /*
 * Do a P2P Listen on the given channel for the given duration.
 * A listen consists of sitting idle and responding to P2P probe requests
@@ -1531,8 +1562,10 @@ wl_cfgp2p_supported(struct wl_priv *wl, struct net_device *ndev)
 s32
 wl_cfgp2p_down(struct wl_priv *wl)
 {
-	if (timer_pending(&wl->p2p->listen_timer))
-		del_timer_sync(&wl->p2p->listen_timer);
+
+	wl_cfgp2p_cancel_listen(wl,
+		wl->p2p_net ? wl->p2p_net : wl_to_prmry_ndev(wl), TRUE);
+
 	wl_cfgp2p_deinit_priv(wl);
 	return 0;
 }
--- a/drivers/net/wireless/bcmdhd/wl_cfgp2p.h
+++ b/drivers/net/wireless/bcmdhd/wl_cfgp2p.h
@@ -77,7 +77,6 @@ struct p2p_info {
 	wl_p2p_sched_t noa;
 	wl_p2p_ops_t ops;
 	wlc_ssid_t ssid;
-	spinlock_t timer_lock;
 };

 /* dongle status */
@@ -268,14 +267,16 @@ wl_cfgp2p_unregister_ndev(struct wl_priv *wl);
 #define WL_P2P_INTERFACE_PREFIX "p2p"
 #define WL_P2P_TEMP_CHAN "11"

+/* If the provision discovery is for JOIN operations, then we need not do an internal scan to find GO */
+#define IS_PROV_DISC_WITHOUT_GROUP_ID(p2p_ie, len) (wl_cfgp2p_retreive_p2pattrib(p2p_ie, P2P_SEID_GROUP_ID) == NULL )

 #define IS_GAS_REQ(frame, len) (wl_cfgp2p_is_gas_action(frame, len) && \
 					((frame->action == P2PSD_ACTION_ID_GAS_IREQ) || \
 					(frame->action == P2PSD_ACTION_ID_GAS_CREQ)))
-#define IS_P2P_PUB_ACT_REQ(frame, len) (wl_cfgp2p_is_pub_action(frame, len) && \
+#define IS_P2P_PUB_ACT_REQ(frame, p2p_ie, len) (wl_cfgp2p_is_pub_action(frame, len) && \
 						((frame->subtype == P2P_PAF_GON_REQ) || \
 						(frame->subtype == P2P_PAF_INVITE_REQ) || \
-						(frame->subtype == P2P_PAF_PROVDIS_REQ)))
+						((frame->subtype == P2P_PAF_PROVDIS_REQ) && IS_PROV_DISC_WITHOUT_GROUP_ID(p2p_ie, len))))
 #define IS_P2P_SOCIAL(ch) ((ch == SOCIAL_CHAN_1) || (ch == SOCIAL_CHAN_2) || (ch == SOCIAL_CHAN_3))
 #define IS_P2P_SSID(ssid) (memcmp(ssid, WL_P2P_WILDCARD_SSID, WL_P2P_WILDCARD_SSID_LEN) == 0)
 #endif				/* _wl_cfgp2p_h_ */