Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 26 insertions, 42 deletions

diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index 3dcd3857a36c..3f04ba0a5454 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -537,11 +537,8 @@ vmxnet3_tq_create(struct vmxnet3_tx_queue *tq,
 
 	tq->buf_info = kcalloc(tq->tx_ring.size, sizeof(tq->buf_info[0]),
 			       GFP_KERNEL);
-	if (!tq->buf_info) {
-		printk(KERN_ERR "%s: failed to allocate tx bufinfo\n",
-		       adapter->netdev->name);
+	if (!tq->buf_info)
 		goto err;
-	}
 
 	return 0;
 
@@ -636,7 +633,7 @@ vmxnet3_rq_alloc_rx_buf(struct vmxnet3_rx_queue *rq, u32 ring_idx,
 
 	dev_dbg(&adapter->netdev->dev,
 		"alloc_rx_buf: %d allocated, next2fill %u, next2comp "
-		"%u, uncommited %u\n", num_allocated, ring->next2fill,
+		"%u, uncommitted %u\n", num_allocated, ring->next2fill,
 		ring->next2comp, rq->uncommitted[ring_idx]);
 
 	/* so that the device can distinguish a full ring and an empty ring */
@@ -816,27 +813,19 @@ vmxnet3_parse_and_copy_hdr(struct sk_buff *skb, struct vmxnet3_tx_queue *tq,
 
 	if (ctx->mss) {	/* TSO */
 		ctx->eth_ip_hdr_size = skb_transport_offset(skb);
-		ctx->l4_hdr_size = ((struct tcphdr *)
-				   skb_transport_header(skb))->doff * 4;
+		ctx->l4_hdr_size = tcp_hdrlen(skb);
 		ctx->copy_size = ctx->eth_ip_hdr_size + ctx->l4_hdr_size;
 	} else {
 		if (skb->ip_summed == CHECKSUM_PARTIAL) {
 			ctx->eth_ip_hdr_size = skb_checksum_start_offset(skb);
 
 			if (ctx->ipv4) {
-				struct iphdr *iph = (struct iphdr *)
-						    skb_network_header(skb);
+				const struct iphdr *iph = ip_hdr(skb);
+
 				if (iph->protocol == IPPROTO_TCP)
-					ctx->l4_hdr_size = ((struct tcphdr *)
-					   skb_transport_header(skb))->doff * 4;
+					ctx->l4_hdr_size = tcp_hdrlen(skb);
 				else if (iph->protocol == IPPROTO_UDP)
-					/*
-					 * Use tcp header size so that bytes to
-					 * be copied are more than required by
-					 * the device.
-					 */
-					ctx->l4_hdr_size =
-							sizeof(struct tcphdr);
+					ctx->l4_hdr_size = sizeof(struct udphdr);
 				else
 					ctx->l4_hdr_size = 0;
 			} else {
@@ -881,14 +870,17 @@ static void
 vmxnet3_prepare_tso(struct sk_buff *skb,
 		    struct vmxnet3_tx_ctx *ctx)
 {
-	struct tcphdr *tcph = (struct tcphdr *)skb_transport_header(skb);
+	struct tcphdr *tcph = tcp_hdr(skb);
+
 	if (ctx->ipv4) {
-		struct iphdr *iph = (struct iphdr *)skb_network_header(skb);
+		struct iphdr *iph = ip_hdr(skb);
+
 		iph->check = 0;
 		tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr, 0,
 						 IPPROTO_TCP, 0);
 	} else {
-		struct ipv6hdr *iph = (struct ipv6hdr *)skb_network_header(skb);
+		struct ipv6hdr *iph = ipv6_hdr(skb);
+
 		tcph->check = ~csum_ipv6_magic(&iph->saddr, &iph->daddr, 0,
 					       IPPROTO_TCP, 0);
 	}
@@ -1519,11 +1511,9 @@ vmxnet3_rq_create(struct vmxnet3_rx_queue *rq, struct vmxnet3_adapter *adapter)
 	sz = sizeof(struct vmxnet3_rx_buf_info) * (rq->rx_ring[0].size +
 						   rq->rx_ring[1].size);
 	bi = kzalloc(sz, GFP_KERNEL);
-	if (!bi) {
-		printk(KERN_ERR "%s: failed to allocate rx bufinfo\n",
-		       adapter->netdev->name);
+	if (!bi)
 		goto err;
-	}
+
 	rq->buf_info[0] = bi;
 	rq->buf_info[1] = bi + rq->rx_ring[0].size;
 
@@ -2709,8 +2699,8 @@ vmxnet3_acquire_msix_vectors(struct vmxnet3_adapter *adapter,
 			adapter->intr.num_intrs = vectors;
 			return 0;
 		} else if (err < 0) {
-			printk(KERN_ERR "Failed to enable MSI-X for %s, error"
-			       " %d\n",	adapter->netdev->name, err);
+			netdev_err(adapter->netdev,
+				   "Failed to enable MSI-X, error: %d\n", err);
 			vectors = 0;
 		} else if (err < vector_threshold) {
 			break;
@@ -2718,15 +2708,15 @@ vmxnet3_acquire_msix_vectors(struct vmxnet3_adapter *adapter,
 			/* If fails to enable required number of MSI-x vectors
 			 * try enabling minimum number of vectors required.
 			 */
+			netdev_err(adapter->netdev,
+				   "Failed to enable %d MSI-X, trying %d instead\n",
+				    vectors, vector_threshold);
 			vectors = vector_threshold;
-			printk(KERN_ERR "Failed to enable %d MSI-X for %s, try"
-			       " %d instead\n", vectors, adapter->netdev->name,
-			       vector_threshold);
 		}
 	}
 
-	printk(KERN_INFO "Number of MSI-X interrupts which can be allocatedi"
-	       " are lower than min threshold required.\n");
+	netdev_info(adapter->netdev,
+		    "Number of MSI-X interrupts which can be allocated are lower than min threshold required.\n");
 	return err;
 }
 
@@ -2792,8 +2782,9 @@ vmxnet3_alloc_intr_resources(struct vmxnet3_adapter *adapter)
 			return;
 
 		/* If we cannot allocate MSIx vectors use only one rx queue */
-		printk(KERN_INFO "Failed to enable MSI-X for %s, error %d."
-		       "#rx queues : 1, try MSI\n", adapter->netdev->name, err);
+		netdev_info(adapter->netdev,
+			    "Failed to enable MSI-X, error %d . Limiting #rx queues to 1, try MSI.\n",
+			    err);
 
 		adapter->intr.type = VMXNET3_IT_MSI;
 	}
@@ -2923,11 +2914,8 @@ vmxnet3_probe_device(struct pci_dev *pdev,
 	printk(KERN_INFO "# of Tx queues : %d, # of Rx queues : %d\n",
 	       num_tx_queues, num_rx_queues);
 
-	if (!netdev) {
-		printk(KERN_ERR "Failed to alloc ethernet device for adapter "
-			"%s\n",	pci_name(pdev));
+	if (!netdev)
 		return -ENOMEM;
-	}
 
 	pci_set_drvdata(pdev, netdev);
 	adapter = netdev_priv(netdev);
@@ -2964,8 +2952,6 @@ vmxnet3_probe_device(struct pci_dev *pdev,
 
 	adapter->pm_conf = kmalloc(sizeof(struct Vmxnet3_PMConf), GFP_KERNEL);
 	if (adapter->pm_conf == NULL) {
-		printk(KERN_ERR "Failed to allocate memory for %s\n",
-			pci_name(pdev));
 		err = -ENOMEM;
 		goto err_alloc_pm;
 	}
@@ -2974,8 +2960,6 @@ vmxnet3_probe_device(struct pci_dev *pdev,
 
 	adapter->rss_conf = kmalloc(sizeof(struct UPT1_RSSConf), GFP_KERNEL);
 	if (adapter->rss_conf == NULL) {
-		printk(KERN_ERR "Failed to allocate memory for %s\n",
-		       pci_name(pdev));
 		err = -ENOMEM;
 		goto err_alloc_rss;
 	}