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

Pull networking changes from David Miller:

1) Allow to dump, monitor, and change the bridge multicast database
   using netlink.  From Cong Wang.

2) RFC 5961 TCP blind data injection attack mitigation, from Eric
   Dumazet.

3) Networking user namespace support from Eric W. Biederman.

4) tuntap/virtio-net multiqueue support by Jason Wang.

5) Support for checksum offload of encapsulated packets (basically,
   tunneled traffic can still be checksummed by HW).  From Joseph
   Gasparakis.

6) Allow BPF filter access to VLAN tags, from Eric Dumazet and
   Daniel Borkmann.

7) Bridge port parameters over netlink and BPDU blocking support
   from Stephen Hemminger.

8) Improve data access patterns during inet socket demux by rearranging
   socket layout, from Eric Dumazet.

9) TIPC protocol updates and cleanups from Ying Xue, Paul Gortmaker, and
   Jon Maloy.

10) Update TCP socket hash sizing to be more in line with current day
    realities.  The existing heurstics were choosen a decade ago.
    From Eric Dumazet.

11) Fix races, queue bloat, and excessive wakeups in ATM and
    associated drivers, from Krzysztof Mazur and David Woodhouse.

12) Support DOVE (Distributed Overlay Virtual Ethernet) extensions
    in VXLAN driver, from David Stevens.

13) Add "oops_only" mode to netconsole, from Amerigo Wang.

14) Support set and query of VEB/VEPA bridge mode via PF_BRIDGE, also
    allow DCB netlink to work on namespaces other than the initial
    namespace.  From John Fastabend.

15) Support PTP in the Tigon3 driver, from Matt Carlson.

16) tun/vhost zero copy fixes and improvements, plus turn it on
    by default, from Michael S. Tsirkin.

17) Support per-association statistics in SCTP, from Michele
    Baldessari.

And many, many, driver updates, cleanups, and improvements.  Too
numerous to mention individually.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1722 commits)
  net/mlx4_en: Add support for destination MAC in steering rules
  net/mlx4_en: Use generic etherdevice.h functions.
  net: ethtool: Add destination MAC address to flow steering API
  bridge: add support of adding and deleting mdb entries
  bridge: notify mdb changes via netlink
  ndisc: Unexport ndisc_{build,send}_skb().
  uapi: add missing netconf.h to export list
  pkt_sched: avoid requeues if possible
  solos-pci: fix double-free of TX skb in DMA mode
  bnx2: Fix accidental reversions.
  bna: Driver Version Updated to 3.1.2.1
  bna: Firmware update
  bna: Add RX State
  bna: Rx Page Based Allocation
  bna: TX Intr Coalescing Fix
  bna: Tx and Rx Optimizations
  bna: Code Cleanup and Enhancements
  ath9k: check pdata variable before dereferencing it
  ath5k: RX timestamp is reported at end of frame
  ath9k_htc: RX timestamp is reported at end of frame
  ...

7 files changed, 35 insertions, 34 deletions

diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c
index a0a4afe537d0..5c70a6599578 100644
--- a/drivers/s390/net/claw.c
+++ b/drivers/s390/net/claw.c
@@ -3018,10 +3018,8 @@ claw_remove_device(struct ccwgroup_device *cgdev)
 {
 	struct claw_privbk *priv;
 
-	BUG_ON(!cgdev);
 	CLAW_DBF_TEXT_(2, setup, "%s", dev_name(&cgdev->dev));
 	priv = dev_get_drvdata(&cgdev->dev);
-	BUG_ON(!priv);
 	dev_info(&cgdev->dev, " will be removed.\n");
 	if (cgdev->state == CCWGROUP_ONLINE)
 		claw_shutdown_device(cgdev);
diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c
index 98ea9cc6f1aa..817b68925ddd 100644
--- a/drivers/s390/net/ctcm_main.c
+++ b/drivers/s390/net/ctcm_main.c
@@ -1691,8 +1691,6 @@ static void ctcm_remove_device(struct ccwgroup_device *cgdev)
 {
 	struct ctcm_priv *priv = dev_get_drvdata(&cgdev->dev);
 
-	BUG_ON(priv == NULL);
-
 	CTCM_DBF_TEXT_(SETUP, CTC_DBF_INFO,
 			"removing device %p, proto : %d",
 			cgdev, priv->protocol);
diff --git a/drivers/s390/net/ctcm_mpc.c b/drivers/s390/net/ctcm_mpc.c
index 05b734a2b5b7..2dbc77b5137b 100644
--- a/drivers/s390/net/ctcm_mpc.c
+++ b/drivers/s390/net/ctcm_mpc.c
@@ -1367,7 +1367,6 @@ static void mpc_action_go_inop(fsm_instance *fi, int event, void *arg)
 	struct mpc_group *grp;
 	struct channel *wch;
 
-	BUG_ON(dev == NULL);
 	CTCM_PR_DEBUG("Enter %s: %s\n",	__func__, dev->name);
 
 	priv  = dev->ml_priv;
@@ -1472,8 +1471,6 @@ static void mpc_action_timeout(fsm_instance *fi, int event, void *arg)
 	struct channel *wch;
 	struct channel *rch;
 
-	BUG_ON(dev == NULL);
-
 	priv = dev->ml_priv;
 	grp = priv->mpcg;
 	wch = priv->channel[CTCM_WRITE];
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index fa7adad6f9ba..480fbeab0256 100644
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -933,6 +933,7 @@ int qeth_hdr_chk_and_bounce(struct sk_buff *, int);
 int qeth_configure_cq(struct qeth_card *, enum qeth_cq);
 int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
 int qeth_query_ipassists(struct qeth_card *, enum qeth_prot_versions prot);
+void qeth_trace_features(struct qeth_card *);
 
 /* exports for OSN */
 int qeth_osn_assist(struct net_device *, void *, int);
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 4d6ba00d0047..638a57f4d8a1 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -73,13 +73,13 @@ static inline const char *qeth_get_cardname(struct qeth_card *card)
 	if (card->info.guestlan) {
 		switch (card->info.type) {
 		case QETH_CARD_TYPE_OSD:
-			return " Guest LAN QDIO";
+			return " Virtual NIC QDIO";
 		case QETH_CARD_TYPE_IQD:
-			return " Guest LAN Hiper";
+			return " Virtual NIC Hiper";
 		case QETH_CARD_TYPE_OSM:
-			return " Guest LAN QDIO - OSM";
+			return " Virtual NIC QDIO - OSM";
 		case QETH_CARD_TYPE_OSX:
-			return " Guest LAN QDIO - OSX";
+			return " Virtual NIC QDIO - OSX";
 		default:
 			return " unknown";
 		}
@@ -108,13 +108,13 @@ const char *qeth_get_cardname_short(struct qeth_card *card)
 	if (card->info.guestlan) {
 		switch (card->info.type) {
 		case QETH_CARD_TYPE_OSD:
-			return "GuestLAN QDIO";
+			return "Virt.NIC QDIO";
 		case QETH_CARD_TYPE_IQD:
-			return "GuestLAN Hiper";
+			return "Virt.NIC Hiper";
 		case QETH_CARD_TYPE_OSM:
-			return "GuestLAN OSM";
+			return "Virt.NIC OSM";
 		case QETH_CARD_TYPE_OSX:
-			return "GuestLAN OSX";
+			return "Virt.NIC OSX";
 		default:
 			return "unknown";
 		}
@@ -383,7 +383,7 @@ static inline void qeth_cleanup_handled_pending(struct qeth_qdio_out_q *q,
 				qeth_release_skbs(c);
 
 				c = f->next_pending;
-				BUG_ON(head->next_pending != f);
+				WARN_ON_ONCE(head->next_pending != f);
 				head->next_pending = c;
 				kmem_cache_free(qeth_qdio_outbuf_cache, f);
 			} else {
@@ -415,13 +415,12 @@ static inline void qeth_qdio_handle_aob(struct qeth_card *card,
 	buffer = (struct qeth_qdio_out_buffer *) aob->user1;
 	QETH_CARD_TEXT_(card, 5, "%lx", aob->user1);
 
-	BUG_ON(buffer == NULL);
-
 	if (atomic_cmpxchg(&buffer->state, QETH_QDIO_BUF_PRIMED,
 			   QETH_QDIO_BUF_IN_CQ) == QETH_QDIO_BUF_PRIMED) {
 		notification = TX_NOTIFY_OK;
 	} else {
-		BUG_ON(atomic_read(&buffer->state) != QETH_QDIO_BUF_PENDING);
+		WARN_ON_ONCE(atomic_read(&buffer->state) !=
+							QETH_QDIO_BUF_PENDING);
 		atomic_set(&buffer->state, QETH_QDIO_BUF_IN_CQ);
 		notification = TX_NOTIFY_DELAYED_OK;
 	}
@@ -1131,7 +1130,7 @@ static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf)
 		notify_general_error = 1;
 
 	/* release may never happen from within CQ tasklet scope */
-	BUG_ON(atomic_read(&buf->state) == QETH_QDIO_BUF_IN_CQ);
+	WARN_ON_ONCE(atomic_read(&buf->state) == QETH_QDIO_BUF_IN_CQ);
 
 	skb = skb_dequeue(&buf->skb_list);
 	while (skb) {
@@ -2280,7 +2279,6 @@ static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
 		unsigned long data)
 {
 	struct qeth_cmd_buffer *iob;
-	int rc = 0;
 
 	QETH_DBF_TEXT(SETUP, 2, "ulpstpcb");
 
@@ -2296,7 +2294,7 @@ static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
 		iob->rc = -EMLINK;
 	}
 	QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
-	return rc;
+	return 0;
 }
 
 static int qeth_ulp_setup(struct qeth_card *card)
@@ -2401,7 +2399,7 @@ static int qeth_alloc_qdio_buffers(struct qeth_card *card)
 		card->qdio.out_qs[i]->queue_no = i;
 		/* give outbound qeth_qdio_buffers their qdio_buffers */
 		for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
-			BUG_ON(card->qdio.out_qs[i]->bufs[j] != NULL);
+			WARN_ON(card->qdio.out_qs[i]->bufs[j] != NULL);
 			if (qeth_init_qdio_out_buf(card->qdio.out_qs[i], j))
 				goto out_freeoutqbufs;
 		}
@@ -2969,9 +2967,6 @@ static int qeth_query_ipassists_cb(struct qeth_card *card,
 	} else
 		QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Flawed LIC detected"
 					"\n", dev_name(&card->gdev->dev));
-	QETH_DBF_TEXT(SETUP, 2, "suppenbl");
-	QETH_DBF_TEXT_(SETUP, 2, "%08x", (__u32)cmd->hdr.ipa_supported);
-	QETH_DBF_TEXT_(SETUP, 2, "%08x", (__u32)cmd->hdr.ipa_enabled);
 	return 0;
 }
 
@@ -3569,7 +3564,7 @@ void qeth_qdio_output_handler(struct ccw_device *ccwdev,
 		if (queue->bufstates &&
 		    (queue->bufstates[bidx].flags &
 		     QDIO_OUTBUF_STATE_FLAG_PENDING) != 0) {
-			BUG_ON(card->options.cq != QETH_CQ_ENABLED);
+			WARN_ON_ONCE(card->options.cq != QETH_CQ_ENABLED);
 
 			if (atomic_cmpxchg(&buffer->state,
 					   QETH_QDIO_BUF_PRIMED,
@@ -3583,7 +3578,6 @@ void qeth_qdio_output_handler(struct ccw_device *ccwdev,
 			QETH_CARD_TEXT(queue->card, 5, "aob");
 			QETH_CARD_TEXT_(queue->card, 5, "%lx",
 					virt_to_phys(buffer->aob));
-			BUG_ON(bidx < 0 || bidx >= QDIO_MAX_BUFFERS_PER_Q);
 			if (qeth_init_qdio_out_buf(queue, bidx)) {
 				QETH_CARD_TEXT(card, 2, "outofbuf");
 				qeth_schedule_recovery(card);
@@ -4731,6 +4725,19 @@ static void qeth_core_free_card(struct qeth_card *card)
 	kfree(card);
 }
 
+void qeth_trace_features(struct qeth_card *card)
+{
+	QETH_CARD_TEXT(card, 2, "features");
+	QETH_CARD_TEXT_(card, 2, "%x", card->options.ipa4.supported_funcs);
+	QETH_CARD_TEXT_(card, 2, "%x", card->options.ipa4.enabled_funcs);
+	QETH_CARD_TEXT_(card, 2, "%x", card->options.ipa6.supported_funcs);
+	QETH_CARD_TEXT_(card, 2, "%x", card->options.ipa6.enabled_funcs);
+	QETH_CARD_TEXT_(card, 2, "%x", card->options.adp.supported_funcs);
+	QETH_CARD_TEXT_(card, 2, "%x", card->options.adp.enabled_funcs);
+	QETH_CARD_TEXT_(card, 2, "%x", card->info.diagass_support);
+}
+EXPORT_SYMBOL_GPL(qeth_trace_features);
+
 static struct ccw_device_id qeth_ids[] = {
 	{CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01),
 					.driver_info = QETH_CARD_TYPE_OSD},
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index fddb62654b6a..73195553f84b 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -411,7 +411,7 @@ static int qeth_l2_process_inbound_buffer(struct qeth_card *card,
 	unsigned int len;
 
 	*done = 0;
-	BUG_ON(!budget);
+	WARN_ON_ONCE(!budget);
 	while (budget) {
 		skb = qeth_core_get_next_skb(card,
 			&card->qdio.in_q->bufs[card->rx.b_index],
@@ -973,7 +973,6 @@ static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
 	int rc = 0;
 	enum qeth_card_states recover_flag;
 
-	BUG_ON(!card);
 	mutex_lock(&card->discipline_mutex);
 	mutex_lock(&card->conf_mutex);
 	QETH_DBF_TEXT(SETUP, 2, "setonlin");
@@ -986,6 +985,7 @@ static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
 		rc = -ENODEV;
 		goto out_remove;
 	}
+	qeth_trace_features(card);
 
 	if (!card->dev && qeth_l2_setup_netdev(card)) {
 		rc = -ENODEV;
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index 5ba390658498..6e5eef01e667 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -1939,7 +1939,7 @@ static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
 	__u16 magic;
 
 	*done = 0;
-	BUG_ON(!budget);
+	WARN_ON_ONCE(!budget);
 	while (budget) {
 		skb = qeth_core_get_next_skb(card,
 			&card->qdio.in_q->bufs[card->rx.b_index],
@@ -3334,7 +3334,6 @@ static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
 	int rc = 0;
 	enum qeth_card_states recover_flag;
 
-	BUG_ON(!card);
 	mutex_lock(&card->discipline_mutex);
 	mutex_lock(&card->conf_mutex);
 	QETH_DBF_TEXT(SETUP, 2, "setonlin");
@@ -3347,6 +3346,7 @@ static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
 		rc = -ENODEV;
 		goto out_remove;
 	}
+	qeth_trace_features(card);
 
 	if (!card->dev && qeth_l3_setup_netdev(card)) {
 		rc = -ENODEV;
@@ -3714,9 +3714,9 @@ static void qeth_l3_unregister_notifiers(void)
 {
 
 	QETH_DBF_TEXT(SETUP, 5, "unregnot");
-	BUG_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
+	WARN_ON(unregister_inetaddr_notifier(&qeth_l3_ip_notifier));
 #ifdef CONFIG_QETH_IPV6
-	BUG_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
+	WARN_ON(unregister_inet6addr_notifier(&qeth_l3_ip6_notifier));
 #endif /* QETH_IPV6 */
 }