Linux-libre 4.5-gnu

6 files changed, 69 insertions, 83 deletions

diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h
index 3ede10309..a6f3eab0f 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib.h
+++ b/drivers/infiniband/ulp/ipoib/ipoib.h
@@ -495,7 +495,6 @@ void ipoib_dev_cleanup(struct net_device *dev);
 void ipoib_mcast_join_task(struct work_struct *work);
 void ipoib_mcast_carrier_on_task(struct work_struct *work);
 void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb);
-void ipoib_mcast_free(struct ipoib_mcast *mc);
 
 void ipoib_mcast_restart_task(struct work_struct *work);
 int ipoib_mcast_start_thread(struct net_device *dev);
@@ -549,8 +548,9 @@ void ipoib_path_iter_read(struct ipoib_path_iter *iter,
 
 int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
 		       union ib_gid *mgid, int set_qkey);
-int ipoib_mcast_leave(struct net_device *dev, struct ipoib_mcast *mcast);
-struct ipoib_mcast *__ipoib_mcast_find(struct net_device *dev, void *mgid);
+void ipoib_mcast_remove_list(struct list_head *remove_list);
+void ipoib_check_and_add_mcast_sendonly(struct ipoib_dev_priv *priv, u8 *mgid,
+				struct list_head *remove_list);
 
 int ipoib_init_qp(struct net_device *dev);
 int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index 3ae9726ef..917e46ea3 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -70,7 +70,6 @@ static struct ib_qp_attr ipoib_cm_err_attr = {
 #define IPOIB_CM_RX_DRAIN_WRID 0xffffffff
 
 static struct ib_send_wr ipoib_cm_rx_drain_wr = {
-	.wr_id = IPOIB_CM_RX_DRAIN_WRID,
 	.opcode = IB_WR_SEND,
 };
 
@@ -223,6 +222,7 @@ static void ipoib_cm_start_rx_drain(struct ipoib_dev_priv *priv)
 	 * error" WC will be immediately generated for each WR we post.
 	 */
 	p = list_entry(priv->cm.rx_flush_list.next, typeof(*p), list);
+	ipoib_cm_rx_drain_wr.wr_id = IPOIB_CM_RX_DRAIN_WRID;
 	if (ib_post_send(p->qp, &ipoib_cm_rx_drain_wr, &bad_wr))
 		ipoib_warn(priv, "failed to post drain wr\n");
 
@@ -1522,8 +1522,7 @@ static void ipoib_cm_create_srq(struct net_device *dev, int max_sge)
 int ipoib_cm_dev_init(struct net_device *dev)
 {
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
-	int i, ret;
-	struct ib_device_attr attr;
+	int max_srq_sge, i;
 
 	INIT_LIST_HEAD(&priv->cm.passive_ids);
 	INIT_LIST_HEAD(&priv->cm.reap_list);
@@ -1540,19 +1539,13 @@ int ipoib_cm_dev_init(struct net_device *dev)
 
 	skb_queue_head_init(&priv->cm.skb_queue);
 
-	ret = ib_query_device(priv->ca, &attr);
-	if (ret) {
-		printk(KERN_WARNING "ib_query_device() failed with %d\n", ret);
-		return ret;
-	}
-
-	ipoib_dbg(priv, "max_srq_sge=%d\n", attr.max_srq_sge);
+	ipoib_dbg(priv, "max_srq_sge=%d\n", priv->ca->attrs.max_srq_sge);
 
-	attr.max_srq_sge = min_t(int, IPOIB_CM_RX_SG, attr.max_srq_sge);
-	ipoib_cm_create_srq(dev, attr.max_srq_sge);
+	max_srq_sge = min_t(int, IPOIB_CM_RX_SG, priv->ca->attrs.max_srq_sge);
+	ipoib_cm_create_srq(dev, max_srq_sge);
 	if (ipoib_cm_has_srq(dev)) {
-		priv->cm.max_cm_mtu = attr.max_srq_sge * PAGE_SIZE - 0x10;
-		priv->cm.num_frags  = attr.max_srq_sge;
+		priv->cm.max_cm_mtu = max_srq_sge * PAGE_SIZE - 0x10;
+		priv->cm.num_frags  = max_srq_sge;
 		ipoib_dbg(priv, "max_cm_mtu = 0x%x, num_frags=%d\n",
 			  priv->cm.max_cm_mtu, priv->cm.num_frags);
 	} else {
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
index 078cadd6c..a53fa5fc0 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
@@ -40,15 +40,11 @@ static void ipoib_get_drvinfo(struct net_device *netdev,
 			      struct ethtool_drvinfo *drvinfo)
 {
 	struct ipoib_dev_priv *priv = netdev_priv(netdev);
-	struct ib_device_attr *attr;
-
-	attr = kmalloc(sizeof(*attr), GFP_KERNEL);
-	if (attr && !ib_query_device(priv->ca, attr))
-		snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
-			 "%d.%d.%d", (int)(attr->fw_ver >> 32),
-			 (int)(attr->fw_ver >> 16) & 0xffff,
-			 (int)attr->fw_ver & 0xffff);
-	kfree(attr);
+
+	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+		 "%d.%d.%d", (int)(priv->ca->attrs.fw_ver >> 32),
+		 (int)(priv->ca->attrs.fw_ver >> 16) & 0xffff,
+		 (int)priv->ca->attrs.fw_ver & 0xffff);
 
 	strlcpy(drvinfo->bus_info, dev_name(priv->ca->dma_device),
 		sizeof(drvinfo->bus_info));
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index 5ea0c1407..fa9c42ff1 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -245,8 +245,6 @@ static void ipoib_ib_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
 	skb_reset_mac_header(skb);
 	skb_pull(skb, IPOIB_ENCAP_LEN);
 
-	skb->truesize = SKB_TRUESIZE(skb->len);
-
 	++dev->stats.rx_packets;
 	dev->stats.rx_bytes += skb->len;
 
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index 7d3281866..25509bbd4 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -1150,8 +1150,6 @@ static void __ipoib_reap_neigh(struct ipoib_dev_priv *priv)
 	unsigned long flags;
 	int i;
 	LIST_HEAD(remove_list);
-	struct ipoib_mcast *mcast, *tmcast;
-	struct net_device *dev = priv->dev;
 
 	if (test_bit(IPOIB_STOP_NEIGH_GC, &priv->flags))
 		return;
@@ -1179,18 +1177,8 @@ static void __ipoib_reap_neigh(struct ipoib_dev_priv *priv)
 							  lockdep_is_held(&priv->lock))) != NULL) {
 			/* was the neigh idle for two GC periods */
 			if (time_after(neigh_obsolete, neigh->alive)) {
-				u8 *mgid = neigh->daddr + 4;
 
-				/* Is this multicast ? */
-				if (*mgid == 0xff) {
-					mcast = __ipoib_mcast_find(dev, mgid);
-
-					if (mcast && test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags)) {
-						list_del(&mcast->list);
-						rb_erase(&mcast->rb_node, &priv->multicast_tree);
-						list_add_tail(&mcast->list, &remove_list);
-					}
-				}
+				ipoib_check_and_add_mcast_sendonly(priv, neigh->daddr + 4, &remove_list);
 
 				rcu_assign_pointer(*np,
 						   rcu_dereference_protected(neigh->hnext,
@@ -1207,10 +1195,7 @@ static void __ipoib_reap_neigh(struct ipoib_dev_priv *priv)
 
 out_unlock:
 	spin_unlock_irqrestore(&priv->lock, flags);
-	list_for_each_entry_safe(mcast, tmcast, &remove_list, list) {
-		ipoib_mcast_leave(dev, mcast);
-		ipoib_mcast_free(mcast);
-	}
+	ipoib_mcast_remove_list(&remove_list);
 }
 
 static void ipoib_reap_neigh(struct work_struct *work)
@@ -1777,26 +1762,7 @@ int ipoib_add_pkey_attr(struct net_device *dev)
 
 int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca)
 {
-	struct ib_device_attr *device_attr;
-	int result = -ENOMEM;
-
-	device_attr = kmalloc(sizeof *device_attr, GFP_KERNEL);
-	if (!device_attr) {
-		printk(KERN_WARNING "%s: allocation of %zu bytes failed\n",
-		       hca->name, sizeof *device_attr);
-		return result;
-	}
-
-	result = ib_query_device(hca, device_attr);
-	if (result) {
-		printk(KERN_WARNING "%s: ib_query_device failed (ret = %d)\n",
-		       hca->name, result);
-		kfree(device_attr);
-		return result;
-	}
-	priv->hca_caps = device_attr->device_cap_flags;
-
-	kfree(device_attr);
+	priv->hca_caps = hca->attrs.device_cap_flags;
 
 	if (priv->hca_caps & IB_DEVICE_UD_IP_CSUM) {
 		priv->dev->hw_features = NETIF_F_SG |
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
index f357ca67a..25889311b 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
@@ -106,7 +106,7 @@ static void __ipoib_mcast_schedule_join_thread(struct ipoib_dev_priv *priv,
 		queue_delayed_work(priv->wq, &priv->mcast_task, 0);
 }
 
-void ipoib_mcast_free(struct ipoib_mcast *mcast)
+static void ipoib_mcast_free(struct ipoib_mcast *mcast)
 {
 	struct net_device *dev = mcast->dev;
 	int tx_dropped = 0;
@@ -153,7 +153,7 @@ static struct ipoib_mcast *ipoib_mcast_alloc(struct net_device *dev,
 	return mcast;
 }
 
-struct ipoib_mcast *__ipoib_mcast_find(struct net_device *dev, void *mgid)
+static struct ipoib_mcast *__ipoib_mcast_find(struct net_device *dev, void *mgid)
 {
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
 	struct rb_node *n = priv->multicast_tree.rb_node;
@@ -456,7 +456,10 @@ out_locked:
 	return status;
 }
 
-static void ipoib_mcast_join(struct net_device *dev, struct ipoib_mcast *mcast)
+/*
+ * Caller must hold 'priv->lock'
+ */
+static int ipoib_mcast_join(struct net_device *dev, struct ipoib_mcast *mcast)
 {
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
 	struct ib_sa_multicast *multicast;
@@ -466,6 +469,10 @@ static void ipoib_mcast_join(struct net_device *dev, struct ipoib_mcast *mcast)
 	ib_sa_comp_mask comp_mask;
 	int ret = 0;
 
+	if (!priv->broadcast ||
+	    !test_bit(IPOIB_FLAG_OPER_UP, &priv->flags))
+		return -EINVAL;
+
 	ipoib_dbg_mcast(priv, "joining MGID %pI6\n", mcast->mcmember.mgid.raw);
 
 	rec.mgid     = mcast->mcmember.mgid;
@@ -525,20 +532,23 @@ static void ipoib_mcast_join(struct net_device *dev, struct ipoib_mcast *mcast)
 			rec.join_state = 4;
 #endif
 	}
+	spin_unlock_irq(&priv->lock);
 
 	multicast = ib_sa_join_multicast(&ipoib_sa_client, priv->ca, priv->port,
 					 &rec, comp_mask, GFP_KERNEL,
 					 ipoib_mcast_join_complete, mcast);
+	spin_lock_irq(&priv->lock);
 	if (IS_ERR(multicast)) {
 		ret = PTR_ERR(multicast);
 		ipoib_warn(priv, "ib_sa_join_multicast failed, status %d\n", ret);
-		spin_lock_irq(&priv->lock);
 		/* Requeue this join task with a backoff delay */
 		__ipoib_mcast_schedule_join_thread(priv, mcast, 1);
 		clear_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags);
 		spin_unlock_irq(&priv->lock);
 		complete(&mcast->done);
+		spin_lock_irq(&priv->lock);
 	}
+	return 0;
 }
 
 void ipoib_mcast_join_task(struct work_struct *work)
@@ -620,9 +630,10 @@ void ipoib_mcast_join_task(struct work_struct *work)
 				/* Found the next unjoined group */
 				init_completion(&mcast->done);
 				set_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags);
-				spin_unlock_irq(&priv->lock);
-				ipoib_mcast_join(dev, mcast);
-				spin_lock_irq(&priv->lock);
+				if (ipoib_mcast_join(dev, mcast)) {
+					spin_unlock_irq(&priv->lock);
+					return;
+				}
 			} else if (!delay_until ||
 				 time_before(mcast->delay_until, delay_until))
 				delay_until = mcast->delay_until;
@@ -641,10 +652,9 @@ out:
 	if (mcast) {
 		init_completion(&mcast->done);
 		set_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags);
+		ipoib_mcast_join(dev, mcast);
 	}
 	spin_unlock_irq(&priv->lock);
-	if (mcast)
-		ipoib_mcast_join(dev, mcast);
 }
 
 int ipoib_mcast_start_thread(struct net_device *dev)
@@ -677,7 +687,7 @@ int ipoib_mcast_stop_thread(struct net_device *dev)
 	return 0;
 }
 
-int ipoib_mcast_leave(struct net_device *dev, struct ipoib_mcast *mcast)
+static int ipoib_mcast_leave(struct net_device *dev, struct ipoib_mcast *mcast)
 {
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
 	int ret = 0;
@@ -704,6 +714,35 @@ int ipoib_mcast_leave(struct net_device *dev, struct ipoib_mcast *mcast)
 	return 0;
 }
 
+/*
+ * Check if the multicast group is sendonly. If so remove it from the maps
+ * and add to the remove list
+ */
+void ipoib_check_and_add_mcast_sendonly(struct ipoib_dev_priv *priv, u8 *mgid,
+				struct list_head *remove_list)
+{
+	/* Is this multicast ? */
+	if (*mgid == 0xff) {
+		struct ipoib_mcast *mcast = __ipoib_mcast_find(priv->dev, mgid);
+
+		if (mcast && test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags)) {
+			list_del(&mcast->list);
+			rb_erase(&mcast->rb_node, &priv->multicast_tree);
+			list_add_tail(&mcast->list, remove_list);
+		}
+	}
+}
+
+void ipoib_mcast_remove_list(struct list_head *remove_list)
+{
+	struct ipoib_mcast *mcast, *tmcast;
+
+	list_for_each_entry_safe(mcast, tmcast, remove_list, list) {
+		ipoib_mcast_leave(mcast->dev, mcast);
+		ipoib_mcast_free(mcast);
+	}
+}
+
 void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb)
 {
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
@@ -810,10 +849,7 @@ void ipoib_mcast_dev_flush(struct net_device *dev)
 		if (test_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags))
 			wait_for_completion(&mcast->done);
 
-	list_for_each_entry_safe(mcast, tmcast, &remove_list, list) {
-		ipoib_mcast_leave(dev, mcast);
-		ipoib_mcast_free(mcast);
-	}
+	ipoib_mcast_remove_list(&remove_list);
 }
 
 static int ipoib_mcast_addr_is_valid(const u8 *addr, const u8 *broadcast)
@@ -939,10 +975,7 @@ void ipoib_mcast_restart_task(struct work_struct *work)
 		if (test_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags))
 			wait_for_completion(&mcast->done);
 
-	list_for_each_entry_safe(mcast, tmcast, &remove_list, list) {
-		ipoib_mcast_leave(mcast->dev, mcast);
-		ipoib_mcast_free(mcast);
-	}
+	ipoib_mcast_remove_list(&remove_list);
 
 	/*
 	 * Double check that we are still up