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2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
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@@ -135,12 +135,11 @@
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 	kfree(mcast);
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 }
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-static struct ipoib_mcast *ipoib_mcast_alloc(struct net_device *dev,
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-					     int can_sleep)
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+static struct ipoib_mcast *ipoib_mcast_alloc(struct net_device *dev)
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 {
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 	struct ipoib_mcast *mcast;
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-	mcast = kzalloc(sizeof(*mcast), can_sleep ? GFP_KERNEL : GFP_ATOMIC);
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+	mcast = kzalloc(sizeof(*mcast), GFP_ATOMIC);
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 	if (!mcast)
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 		return NULL;
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@@ -218,6 +217,7 @@
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 	struct rdma_ah_attr av;
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 	int ret;
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 	int set_qkey = 0;
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+	int mtu;
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 	mcast->mcmember = *mcmember;
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@@ -240,13 +240,12 @@
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 		priv->broadcast->mcmember.flow_label = mcmember->flow_label;
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 		priv->broadcast->mcmember.hop_limit = mcmember->hop_limit;
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 		/* assume if the admin and the mcast are the same both can be changed */
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+		mtu = rdma_mtu_enum_to_int(priv->ca,  priv->port,
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+					   priv->broadcast->mcmember.mtu);
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 		if (priv->mcast_mtu == priv->admin_mtu)
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-			priv->admin_mtu =
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-			priv->mcast_mtu =
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-			IPOIB_UD_MTU(ib_mtu_enum_to_int(priv->broadcast->mcmember.mtu));
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-		else
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-			priv->mcast_mtu =
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-			IPOIB_UD_MTU(ib_mtu_enum_to_int(priv->broadcast->mcmember.mtu));
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+			priv->admin_mtu = IPOIB_UD_MTU(mtu);
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+		priv->mcast_mtu = IPOIB_UD_MTU(mtu);
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+		rn->mtu = priv->mcast_mtu;
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249
 
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 		priv->qkey = be32_to_cpu(priv->broadcast->mcmember.qkey);
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 		spin_unlock_irq(&priv->lock);
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@@ -599,7 +598,7 @@
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 	if (!priv->broadcast) {
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 		struct ipoib_mcast *broadcast;
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-		broadcast = ipoib_mcast_alloc(dev, 0);
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+		broadcast = ipoib_mcast_alloc(dev);
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 		if (!broadcast) {
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 			ipoib_warn(priv, "failed to allocate broadcast group\n");
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 			/*
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@@ -681,15 +680,13 @@
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 	spin_unlock_irqrestore(&priv->lock, flags);
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 }
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682
 
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-int ipoib_mcast_stop_thread(struct net_device *dev)
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+void ipoib_mcast_stop_thread(struct net_device *dev)
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 {
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 	struct ipoib_dev_priv *priv = ipoib_priv(dev);
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 	ipoib_dbg_mcast(priv, "stopping multicast thread\n");
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688
 
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 	cancel_delayed_work_sync(&priv->mcast_task);
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-
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-	return 0;
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 }
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 static int ipoib_mcast_leave(struct net_device *dev, struct ipoib_mcast *mcast)
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@@ -782,7 +779,7 @@
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 			ipoib_dbg_mcast(priv, "setting up send only multicast group for %pI6\n",
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 					mgid);
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-			mcast = ipoib_mcast_alloc(dev, 0);
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+			mcast = ipoib_mcast_alloc(dev);
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 			if (!mcast) {
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 				ipoib_warn(priv, "unable to allocate memory "
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 					   "for multicast structure\n");
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@@ -936,7 +933,7 @@
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 			ipoib_dbg_mcast(priv, "adding multicast entry for mgid %pI6\n",
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 					mgid.raw);
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-			nmcast = ipoib_mcast_alloc(dev, 0);
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+			nmcast = ipoib_mcast_alloc(dev);
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 			if (!nmcast) {
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 				ipoib_warn(priv, "unable to allocate memory for multicast structure\n");
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 				continue;