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, 20 insertions, 13 deletions

diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
index 120f1ab5a2c..c5fe3a3db8c 100644
--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -130,13 +130,13 @@ static int can_calc_bittiming(struct net_device *dev, struct can_bittiming *bt)
 		/* Error in one-tenth of a percent */
 		error = (best_error * 1000) / bt->bitrate;
 		if (error > CAN_CALC_MAX_ERROR) {
-			dev_err(dev->dev.parent,
-				"bitrate error %ld.%ld%% too high\n",
-				error / 10, error % 10);
+			netdev_err(dev,
+				   "bitrate error %ld.%ld%% too high\n",
+				   error / 10, error % 10);
 			return -EDOM;
 		} else {
-			dev_warn(dev->dev.parent, "bitrate error %ld.%ld%%\n",
-				 error / 10, error % 10);
+			netdev_warn(dev, "bitrate error %ld.%ld%%\n",
+				    error / 10, error % 10);
 		}
 	}
 
@@ -172,7 +172,7 @@ static int can_calc_bittiming(struct net_device *dev, struct can_bittiming *bt)
 #else /* !CONFIG_CAN_CALC_BITTIMING */
 static int can_calc_bittiming(struct net_device *dev, struct can_bittiming *bt)
 {
-	dev_err(dev->dev.parent, "bit-timing calculation not available\n");
+	netdev_err(dev, "bit-timing calculation not available\n");
 	return -EINVAL;
 }
 #endif /* CONFIG_CAN_CALC_BITTIMING */
@@ -313,8 +313,7 @@ void can_put_echo_skb(struct sk_buff *skb, struct net_device *dev,
 		priv->echo_skb[idx] = skb;
 	} else {
 		/* locking problem with netif_stop_queue() ?? */
-		dev_err(dev->dev.parent, "%s: BUG! echo_skb is occupied!\n",
-			__func__);
+		netdev_err(dev, "%s: BUG! echo_skb is occupied!\n", __func__);
 		kfree_skb(skb);
 	}
 }
@@ -327,16 +326,24 @@ EXPORT_SYMBOL_GPL(can_put_echo_skb);
  * is handled in the device driver. The driver must protect
  * access to priv->echo_skb, if necessary.
  */
-void can_get_echo_skb(struct net_device *dev, unsigned int idx)
+unsigned int can_get_echo_skb(struct net_device *dev, unsigned int idx)
 {
 	struct can_priv *priv = netdev_priv(dev);
 
 	BUG_ON(idx >= priv->echo_skb_max);
 
 	if (priv->echo_skb[idx]) {
+		struct sk_buff *skb = priv->echo_skb[idx];
+		struct can_frame *cf = (struct can_frame *)skb->data;
+		u8 dlc = cf->can_dlc;
+
 		netif_rx(priv->echo_skb[idx]);
 		priv->echo_skb[idx] = NULL;
+
+		return dlc;
 	}
+
+	return 0;
 }
 EXPORT_SYMBOL_GPL(can_get_echo_skb);
 
@@ -392,7 +399,7 @@ void can_restart(unsigned long data)
 	stats->rx_bytes += cf->can_dlc;
 
 restart:
-	dev_dbg(dev->dev.parent, "restarted\n");
+	netdev_dbg(dev, "restarted\n");
 	priv->can_stats.restarts++;
 
 	/* Now restart the device */
@@ -400,7 +407,7 @@ restart:
 
 	netif_carrier_on(dev);
 	if (err)
-		dev_err(dev->dev.parent, "Error %d during restart", err);
+		netdev_err(dev, "Error %d during restart", err);
 }
 
 int can_restart_now(struct net_device *dev)
@@ -433,7 +440,7 @@ void can_bus_off(struct net_device *dev)
 {
 	struct can_priv *priv = netdev_priv(dev);
 
-	dev_dbg(dev->dev.parent, "bus-off\n");
+	netdev_dbg(dev, "bus-off\n");
 
 	netif_carrier_off(dev);
 	priv->can_stats.bus_off++;
@@ -545,7 +552,7 @@ int open_candev(struct net_device *dev)
 	struct can_priv *priv = netdev_priv(dev);
 
 	if (!priv->bittiming.tq && !priv->bittiming.bitrate) {
-		dev_err(dev->dev.parent, "bit-timing not yet defined\n");
+		netdev_err(dev, "bit-timing not yet defined\n");
 		return -EINVAL;
 	}