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, 23 insertions, 32 deletions

diff --git a/net/nfc/core.c b/net/nfc/core.c
index 3ddf6e698df..295d129864d 100644
--- a/net/nfc/core.c
+++ b/net/nfc/core.c
@@ -181,13 +181,13 @@ error:
 	return rc;
 }
 
-int nfc_dep_link_up(struct nfc_dev *dev, int target_index,
-					u8 comm_mode, u8 rf_mode)
+int nfc_dep_link_up(struct nfc_dev *dev, int target_index, u8 comm_mode)
 {
 	int rc = 0;
+	u8 *gb;
+	size_t gb_len;
 
-	pr_debug("dev_name=%s comm:%d rf:%d\n",
-			dev_name(&dev->dev), comm_mode, rf_mode);
+	pr_debug("dev_name=%s comm %d\n", dev_name(&dev->dev), comm_mode);
 
 	if (!dev->ops->dep_link_up)
 		return -EOPNOTSUPP;
@@ -204,7 +204,13 @@ int nfc_dep_link_up(struct nfc_dev *dev, int target_index,
 		goto error;
 	}
 
-	rc = dev->ops->dep_link_up(dev, target_index, comm_mode, rf_mode);
+	gb = nfc_llcp_general_bytes(dev, &gb_len);
+	if (gb_len > NFC_MAX_GT_LEN) {
+		rc = -EINVAL;
+		goto error;
+	}
+
+	rc = dev->ops->dep_link_up(dev, target_index, comm_mode, gb, gb_len);
 
 error:
 	device_unlock(&dev->dev);
@@ -250,7 +256,7 @@ error:
 }
 
 int nfc_dep_link_is_up(struct nfc_dev *dev, u32 target_idx,
-					u8 comm_mode, u8 rf_mode)
+		       u8 comm_mode, u8 rf_mode)
 {
 	dev->dep_link_up = true;
 	dev->dep_rf_mode = rf_mode;
@@ -330,10 +336,8 @@ error:
  *
  * The user must wait for the callback before calling this function again.
  */
-int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx,
-					struct sk_buff *skb,
-					data_exchange_cb_t cb,
-					void *cb_context)
+int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx, struct sk_buff *skb,
+		      data_exchange_cb_t cb, void *cb_context)
 {
 	int rc;
 
@@ -357,8 +361,7 @@ error:
 
 int nfc_set_remote_general_bytes(struct nfc_dev *dev, u8 *gb, u8 gb_len)
 {
-	pr_debug("dev_name=%s gb_len=%d\n",
-			dev_name(&dev->dev), gb_len);
+	pr_debug("dev_name=%s gb_len=%d\n", dev_name(&dev->dev), gb_len);
 
 	if (gb_len > NFC_MAX_GT_LEN)
 		return -EINVAL;
@@ -367,12 +370,6 @@ int nfc_set_remote_general_bytes(struct nfc_dev *dev, u8 *gb, u8 gb_len)
 }
 EXPORT_SYMBOL(nfc_set_remote_general_bytes);
 
-u8 *nfc_get_local_general_bytes(struct nfc_dev *dev, u8 *gt_len)
-{
-	return nfc_llcp_general_bytes(dev, gt_len);
-}
-EXPORT_SYMBOL(nfc_get_local_general_bytes);
-
 /**
  * nfc_alloc_send_skb - allocate a skb for data exchange responses
  *
@@ -380,8 +377,8 @@ EXPORT_SYMBOL(nfc_get_local_general_bytes);
  * @gfp: gfp flags
  */
 struct sk_buff *nfc_alloc_send_skb(struct nfc_dev *dev, struct sock *sk,
-					unsigned int flags, unsigned int size,
-					unsigned int *err)
+				   unsigned int flags, unsigned int size,
+				   unsigned int *err)
 {
 	struct sk_buff *skb;
 	unsigned int total_size;
@@ -428,25 +425,20 @@ EXPORT_SYMBOL(nfc_alloc_recv_skb);
  * are found. After calling this function, the device driver must stop
  * polling for targets.
  */
-int nfc_targets_found(struct nfc_dev *dev, struct nfc_target *targets,
-							int n_targets)
+int nfc_targets_found(struct nfc_dev *dev,
+		      struct nfc_target *targets, int n_targets)
 {
-	int i;
-
 	pr_debug("dev_name=%s n_targets=%d\n", dev_name(&dev->dev), n_targets);
 
 	dev->polling = false;
 
-	for (i = 0; i < n_targets; i++)
-		targets[i].idx = dev->target_idx++;
-
 	spin_lock_bh(&dev->targets_lock);
 
 	dev->targets_generation++;
 
 	kfree(dev->targets);
 	dev->targets = kmemdup(targets, n_targets * sizeof(struct nfc_target),
-								GFP_ATOMIC);
+			       GFP_ATOMIC);
 
 	if (!dev->targets) {
 		dev->n_targets = 0;
@@ -506,15 +498,14 @@ struct nfc_dev *nfc_get_device(unsigned idx)
  * @supported_protocols: NFC protocols supported by the device
  */
 struct nfc_dev *nfc_allocate_device(struct nfc_ops *ops,
-					u32 supported_protocols,
-					int tx_headroom,
-					int tx_tailroom)
+				    u32 supported_protocols,
+				    int tx_headroom, int tx_tailroom)
 {
 	static atomic_t dev_no = ATOMIC_INIT(0);
 	struct nfc_dev *dev;
 
 	if (!ops->start_poll || !ops->stop_poll || !ops->activate_target ||
-		!ops->deactivate_target || !ops->data_exchange)
+	    !ops->deactivate_target || !ops->data_exchange)
 		return NULL;
 
 	if (!supported_protocols)