Kernel bump from 4.1.3-rt to 4.1.7-rt.

These changes brings a vanilla kernel from kernel.org, and the patch
applied for rt is patch-4.1.7-rt8.patch. No further changes needed.

Change-Id: Id8dd03c2ddd971e4d1d69b905f3069737053b700
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

17 files changed, 66 insertions, 25 deletions

diff --git a/kernel/net/9p/client.c b/kernel/net/9p/client.c
index 6f4c4c88d..fcf6fe063 100644
--- a/kernel/net/9p/client.c
+++ b/kernel/net/9p/client.c
@@ -843,7 +843,8 @@ static struct p9_req_t *p9_client_zc_rpc(struct p9_client *c, int8_t type,
 	if (err < 0) {
 		if (err == -EIO)
 			c->status = Disconnected;
-		goto reterr;
+		if (err != -ERESTARTSYS)
+			goto reterr;
 	}
 	if (req->status == REQ_STATUS_ERROR) {
 		p9_debug(P9_DEBUG_ERROR, "req_status error %d\n", req->t_err);
@@ -1540,6 +1541,7 @@ p9_client_read(struct p9_fid *fid, u64 offset, struct iov_iter *to, int *err)
 	struct p9_client *clnt = fid->clnt;
 	struct p9_req_t *req;
 	int total = 0;
+	*err = 0;
 
 	p9_debug(P9_DEBUG_9P, ">>> TREAD fid %d offset %llu %d\n",
 		   fid->fid, (unsigned long long) offset, (int)iov_iter_count(to));
@@ -1615,6 +1617,7 @@ p9_client_write(struct p9_fid *fid, u64 offset, struct iov_iter *from, int *err)
 	struct p9_client *clnt = fid->clnt;
 	struct p9_req_t *req;
 	int total = 0;
+	*err = 0;
 
 	p9_debug(P9_DEBUG_9P, ">>> TWRITE fid %d offset %llu count %zd\n",
 				fid->fid, (unsigned long long) offset,
@@ -1647,6 +1650,7 @@ p9_client_write(struct p9_fid *fid, u64 offset, struct iov_iter *from, int *err)
 		if (*err) {
 			trace_9p_protocol_dump(clnt, req->rc);
 			p9_free_req(clnt, req);
+			break;
 		}
 
 		p9_debug(P9_DEBUG_9P, "<<< RWRITE count %d\n", count);
diff --git a/kernel/net/bluetooth/hci_sock.c b/kernel/net/bluetooth/hci_sock.c
index 56f9edbf3..e11a5cfda 100644
--- a/kernel/net/bluetooth/hci_sock.c
+++ b/kernel/net/bluetooth/hci_sock.c
@@ -741,10 +741,11 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr,
 			goto done;
 		}
 
-		if (test_bit(HCI_UP, &hdev->flags) ||
-		    test_bit(HCI_INIT, &hdev->flags) ||
+		if (test_bit(HCI_INIT, &hdev->flags) ||
 		    hci_dev_test_flag(hdev, HCI_SETUP) ||
-		    hci_dev_test_flag(hdev, HCI_CONFIG)) {
+		    hci_dev_test_flag(hdev, HCI_CONFIG) ||
+		    (!hci_dev_test_flag(hdev, HCI_AUTO_OFF) &&
+		     test_bit(HCI_UP, &hdev->flags))) {
 			err = -EBUSY;
 			hci_dev_put(hdev);
 			goto done;
@@ -760,10 +761,21 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr,
 
 		err = hci_dev_open(hdev->id);
 		if (err) {
-			hci_dev_clear_flag(hdev, HCI_USER_CHANNEL);
-			mgmt_index_added(hdev);
-			hci_dev_put(hdev);
-			goto done;
+			if (err == -EALREADY) {
+				/* In case the transport is already up and
+				 * running, clear the error here.
+				 *
+				 * This can happen when opening an user
+				 * channel and HCI_AUTO_OFF grace period
+				 * is still active.
+				 */
+				err = 0;
+			} else {
+				hci_dev_clear_flag(hdev, HCI_USER_CHANNEL);
+				mgmt_index_added(hdev);
+				hci_dev_put(hdev);
+				goto done;
+			}
 		}
 
 		atomic_inc(&hdev->promisc);
diff --git a/kernel/net/bluetooth/smp.c b/kernel/net/bluetooth/smp.c
index 1ab3dc9c8..7b815bcc8 100644
--- a/kernel/net/bluetooth/smp.c
+++ b/kernel/net/bluetooth/smp.c
@@ -2295,6 +2295,10 @@ int smp_conn_security(struct hci_conn *hcon, __u8 sec_level)
 		return 1;
 
 	chan = conn->smp;
+	if (!chan) {
+		BT_ERR("SMP security requested but not available");
+		return 1;
+	}
 
 	if (!hci_dev_test_flag(hcon->hdev, HCI_LE_ENABLED))
 		return 1;
diff --git a/kernel/net/can/af_can.c b/kernel/net/can/af_can.c
index 689c818ed..62c635f2b 100644
--- a/kernel/net/can/af_can.c
+++ b/kernel/net/can/af_can.c
@@ -89,6 +89,8 @@ struct timer_list can_stattimer;   /* timer for statistics update */
 struct s_stats    can_stats;       /* packet statistics */
 struct s_pstats   can_pstats;      /* receive list statistics */
 
+static atomic_t skbcounter = ATOMIC_INIT(0);
+
 /*
  * af_can socket functions
  */
@@ -310,12 +312,8 @@ int can_send(struct sk_buff *skb, int loop)
 		return err;
 	}
 
-	if (newskb) {
-		if (!(newskb->tstamp.tv64))
-			__net_timestamp(newskb);
-
+	if (newskb)
 		netif_rx_ni(newskb);
-	}
 
 	/* update statistics */
 	can_stats.tx_frames++;
@@ -683,6 +681,10 @@ static void can_receive(struct sk_buff *skb, struct net_device *dev)
 	can_stats.rx_frames++;
 	can_stats.rx_frames_delta++;
 
+	/* create non-zero unique skb identifier together with *skb */
+	while (!(can_skb_prv(skb)->skbcnt))
+		can_skb_prv(skb)->skbcnt = atomic_inc_return(&skbcounter);
+
 	rcu_read_lock();
 
 	/* deliver the packet to sockets listening on all devices */
diff --git a/kernel/net/can/bcm.c b/kernel/net/can/bcm.c
index b52345358..a1ba6875c 100644
--- a/kernel/net/can/bcm.c
+++ b/kernel/net/can/bcm.c
@@ -261,6 +261,7 @@ static void bcm_can_tx(struct bcm_op *op)
 
 	can_skb_reserve(skb);
 	can_skb_prv(skb)->ifindex = dev->ifindex;
+	can_skb_prv(skb)->skbcnt = 0;
 
 	memcpy(skb_put(skb, CFSIZ), cf, CFSIZ);
 
@@ -1217,6 +1218,7 @@ static int bcm_tx_send(struct msghdr *msg, int ifindex, struct sock *sk)
 	}
 
 	can_skb_prv(skb)->ifindex = dev->ifindex;
+	can_skb_prv(skb)->skbcnt = 0;
 	skb->dev = dev;
 	can_skb_set_owner(skb, sk);
 	err = can_send(skb, 1); /* send with loopback */
diff --git a/kernel/net/can/raw.c b/kernel/net/can/raw.c
index 31b9748cb..2e67b1423 100644
--- a/kernel/net/can/raw.c
+++ b/kernel/net/can/raw.c
@@ -75,7 +75,7 @@ MODULE_ALIAS("can-proto-1");
  */
 
 struct uniqframe {
-	ktime_t tstamp;
+	int skbcnt;
 	const struct sk_buff *skb;
 	unsigned int join_rx_count;
 };
@@ -133,7 +133,7 @@ static void raw_rcv(struct sk_buff *oskb, void *data)
 
 	/* eliminate multiple filter matches for the same skb */
 	if (this_cpu_ptr(ro->uniq)->skb == oskb &&
-	    ktime_equal(this_cpu_ptr(ro->uniq)->tstamp, oskb->tstamp)) {
+	    this_cpu_ptr(ro->uniq)->skbcnt == can_skb_prv(oskb)->skbcnt) {
 		if (ro->join_filters) {
 			this_cpu_inc(ro->uniq->join_rx_count);
 			/* drop frame until all enabled filters matched */
@@ -144,7 +144,7 @@ static void raw_rcv(struct sk_buff *oskb, void *data)
 		}
 	} else {
 		this_cpu_ptr(ro->uniq)->skb = oskb;
-		this_cpu_ptr(ro->uniq)->tstamp = oskb->tstamp;
+		this_cpu_ptr(ro->uniq)->skbcnt = can_skb_prv(oskb)->skbcnt;
 		this_cpu_ptr(ro->uniq)->join_rx_count = 1;
 		/* drop first frame to check all enabled filters? */
 		if (ro->join_filters && ro->count > 1)
@@ -749,6 +749,7 @@ static int raw_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
 
 	can_skb_reserve(skb);
 	can_skb_prv(skb)->ifindex = dev->ifindex;
+	can_skb_prv(skb)->skbcnt = 0;
 
 	err = memcpy_from_msg(skb_put(skb, size), msg, size);
 	if (err < 0)
diff --git a/kernel/net/ceph/osdmap.c b/kernel/net/ceph/osdmap.c
index 15796696d..4a3125836 100644
--- a/kernel/net/ceph/osdmap.c
+++ b/kernel/net/ceph/osdmap.c
@@ -89,7 +89,7 @@ static int crush_decode_tree_bucket(void **p, void *end,
 {
 	int j;
 	dout("crush_decode_tree_bucket %p to %p\n", *p, end);
-	ceph_decode_32_safe(p, end, b->num_nodes, bad);
+	ceph_decode_8_safe(p, end, b->num_nodes, bad);
 	b->node_weights = kcalloc(b->num_nodes, sizeof(u32), GFP_NOFS);
 	if (b->node_weights == NULL)
 		return -ENOMEM;
diff --git a/kernel/net/ieee802154/socket.c b/kernel/net/ieee802154/socket.c
index b60c65f70..627a25376 100644
--- a/kernel/net/ieee802154/socket.c
+++ b/kernel/net/ieee802154/socket.c
@@ -739,6 +739,12 @@ static int dgram_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
 	sock_recv_ts_and_drops(msg, sk, skb);
 
 	if (saddr) {
+		/* Clear the implicit padding in struct sockaddr_ieee802154
+		 * (16 bits between 'family' and 'addr') and in struct
+		 * ieee802154_addr_sa (16 bits at the end of the structure).
+		 */
+		memset(saddr, 0, sizeof(*saddr));
+
 		saddr->family = AF_IEEE802154;
 		ieee802154_addr_to_sa(&saddr->addr, &mac_cb(skb)->source);
 		*addr_len = sizeof(*saddr);
diff --git a/kernel/net/mac80211/cfg.c b/kernel/net/mac80211/cfg.c
index ff347a0ee..f06d42267 100644
--- a/kernel/net/mac80211/cfg.c
+++ b/kernel/net/mac80211/cfg.c
@@ -3356,6 +3356,7 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 	/* Update CSA counters */
 	if (sdata->vif.csa_active &&
 	    (sdata->vif.type == NL80211_IFTYPE_AP ||
+	     sdata->vif.type == NL80211_IFTYPE_MESH_POINT ||
 	     sdata->vif.type == NL80211_IFTYPE_ADHOC) &&
 	    params->n_csa_offsets) {
 		int i;
diff --git a/kernel/net/mac80211/debugfs_netdev.c b/kernel/net/mac80211/debugfs_netdev.c
index 29236e832..c09c0131b 100644
--- a/kernel/net/mac80211/debugfs_netdev.c
+++ b/kernel/net/mac80211/debugfs_netdev.c
@@ -723,6 +723,7 @@ void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
 
 	debugfs_remove_recursive(sdata->vif.debugfs_dir);
 	sdata->vif.debugfs_dir = NULL;
+	sdata->debugfs.subdir_stations = NULL;
 }
 
 void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
diff --git a/kernel/net/mac80211/ibss.c b/kernel/net/mac80211/ibss.c
index bfef1b215..a9c9d961f 100644
--- a/kernel/net/mac80211/ibss.c
+++ b/kernel/net/mac80211/ibss.c
@@ -146,6 +146,7 @@ ieee80211_ibss_build_presp(struct ieee80211_sub_if_data *sdata,
 				csa_settings->chandef.chan->center_freq);
 		presp->csa_counter_offsets[0] = (pos - presp->head);
 		*pos++ = csa_settings->count;
+		presp->csa_current_counter = csa_settings->count;
 	}
 
 	/* put the remaining rates in WLAN_EID_EXT_SUPP_RATES */
diff --git a/kernel/net/mac80211/main.c b/kernel/net/mac80211/main.c
index df3051d96..e86daed83 100644
--- a/kernel/net/mac80211/main.c
+++ b/kernel/net/mac80211/main.c
@@ -249,6 +249,7 @@ static void ieee80211_restart_work(struct work_struct *work)
 {
 	struct ieee80211_local *local =
 		container_of(work, struct ieee80211_local, restart_work);
+	struct ieee80211_sub_if_data *sdata;
 
 	/* wait for scan work complete */
 	flush_workqueue(local->workqueue);
@@ -257,6 +258,8 @@ static void ieee80211_restart_work(struct work_struct *work)
 	     "%s called with hardware scan in progress\n", __func__);
 
 	rtnl_lock();
+	list_for_each_entry(sdata, &local->interfaces, list)
+		flush_delayed_work(&sdata->dec_tailroom_needed_wk);
 	ieee80211_scan_cancel(local);
 	ieee80211_reconfig(local);
 	rtnl_unlock();
diff --git a/kernel/net/mac80211/mesh.c b/kernel/net/mac80211/mesh.c
index d4684242e..817098add 100644
--- a/kernel/net/mac80211/mesh.c
+++ b/kernel/net/mac80211/mesh.c
@@ -680,6 +680,7 @@ ieee80211_mesh_build_beacon(struct ieee80211_if_mesh *ifmsh)
 		*pos++ = 0x0;
 		*pos++ = ieee80211_frequency_to_channel(
 				csa->settings.chandef.chan->center_freq);
+		bcn->csa_current_counter = csa->settings.count;
 		bcn->csa_counter_offsets[0] = hdr_len + 6;
 		*pos++ = csa->settings.count;
 		*pos++ = WLAN_EID_CHAN_SWITCH_PARAM;
diff --git a/kernel/net/mac80211/rc80211_minstrel.c b/kernel/net/mac80211/rc80211_minstrel.c
index 247552a7f..3ece7d103 100644
--- a/kernel/net/mac80211/rc80211_minstrel.c
+++ b/kernel/net/mac80211/rc80211_minstrel.c
@@ -92,14 +92,15 @@ int minstrel_get_tp_avg(struct minstrel_rate *mr, int prob_ewma)
 static inline void
 minstrel_sort_best_tp_rates(struct minstrel_sta_info *mi, int i, u8 *tp_list)
 {
-	int j = MAX_THR_RATES;
-	struct minstrel_rate_stats *tmp_mrs = &mi->r[j - 1].stats;
+	int j;
+	struct minstrel_rate_stats *tmp_mrs;
 	struct minstrel_rate_stats *cur_mrs = &mi->r[i].stats;
 
-	while (j > 0 && (minstrel_get_tp_avg(&mi->r[i], cur_mrs->prob_ewma) >
-	       minstrel_get_tp_avg(&mi->r[tp_list[j - 1]], tmp_mrs->prob_ewma))) {
-		j--;
+	for (j = MAX_THR_RATES; j > 0; --j) {
 		tmp_mrs = &mi->r[tp_list[j - 1]].stats;
+		if (minstrel_get_tp_avg(&mi->r[i], cur_mrs->prob_ewma) <=
+		    minstrel_get_tp_avg(&mi->r[tp_list[j - 1]], tmp_mrs->prob_ewma))
+			break;
 	}
 
 	if (j < MAX_THR_RATES - 1)
diff --git a/kernel/net/rds/ib_rdma.c b/kernel/net/rds/ib_rdma.c
index f64b6e83a..c8faaf364 100644
--- a/kernel/net/rds/ib_rdma.c
+++ b/kernel/net/rds/ib_rdma.c
@@ -760,8 +760,10 @@ void *rds_ib_get_mr(struct scatterlist *sg, unsigned long nents,
 	}
 
 	ibmr = rds_ib_alloc_fmr(rds_ibdev);
-	if (IS_ERR(ibmr))
+	if (IS_ERR(ibmr)) {
+		rds_ib_dev_put(rds_ibdev);
 		return ibmr;
+	}
 
 	ret = rds_ib_map_fmr(rds_ibdev, ibmr, sg, nents);
 	if (ret == 0)
diff --git a/kernel/net/sunrpc/backchannel_rqst.c b/kernel/net/sunrpc/backchannel_rqst.c
index 9dd0ea8db..28504dfd3 100644
--- a/kernel/net/sunrpc/backchannel_rqst.c
+++ b/kernel/net/sunrpc/backchannel_rqst.c
@@ -60,7 +60,7 @@ static void xprt_free_allocation(struct rpc_rqst *req)
 
 	dprintk("RPC:        free allocations for req= %p\n", req);
 	WARN_ON_ONCE(test_bit(RPC_BC_PA_IN_USE, &req->rq_bc_pa_state));
-	xbufp = &req->rq_private_buf;
+	xbufp = &req->rq_rcv_buf;
 	free_page((unsigned long)xbufp->head[0].iov_base);
 	xbufp = &req->rq_snd_buf;
 	free_page((unsigned long)xbufp->head[0].iov_base);
diff --git a/kernel/net/wireless/util.c b/kernel/net/wireless/util.c
index 70051ab52..7e4e3fffe 100644
--- a/kernel/net/wireless/util.c
+++ b/kernel/net/wireless/util.c
@@ -944,7 +944,7 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
 	     ntype == NL80211_IFTYPE_P2P_CLIENT))
 		return -EBUSY;
 
-	if (ntype != otype && netif_running(dev)) {
+	if (ntype != otype) {
 		dev->ieee80211_ptr->use_4addr = false;
 		dev->ieee80211_ptr->mesh_id_up_len = 0;
 		wdev_lock(dev->ieee80211_ptr);