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Commit 25a1d9dc authored by Ilan Elias's avatar Ilan Elias Committed by John W. Linville
Browse files

NFC: NFC core layer should not set the target_idx 



The NFC core layer should not set the target_idx.
Instead, the driver layer (e.g. NCI, PN533) should set the
target_idx, so that it will be able to identify the target
when its I/F (e.g. activate_target) is called.
This is required in order to support multiple targets.
Note that currently supported drivers (PN533 and NCI) don't
use the target_idx in their implementation.

Signed-off-by: default avatarIlan Elias <ilane@ti.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 8939e47f

include/net/nfc/nfc.h

+0 −1
Original line number Diff line number Diff line
@@ -87,7 +87,6 @@ struct nfc_genl_data { 


struct nfc_dev {

	unsigned idx;

	unsigned target_idx;

	struct nfc_target *targets;

	int n_targets;

	int targets_generation;

net/nfc/core.c

+0 −5
Original line number Diff line number Diff line
@@ -431,15 +431,10 @@ EXPORT_SYMBOL(nfc_alloc_recv_skb); 
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++;

net/nfc/rawsock.c

+0 −12
Original line number Diff line number Diff line
@@ -92,18 +92,6 @@ static int rawsock_connect(struct socket *sock, struct sockaddr *_addr, 
		goto error;

	}



	if (addr->target_idx > dev->target_idx - 1 ||

		addr->target_idx < dev->target_idx - dev->n_targets) {

		rc = -EINVAL;

		goto error;

	}



	if (addr->target_idx > dev->target_idx - 1 ||

		addr->target_idx < dev->target_idx - dev->n_targets) {

		rc = -EINVAL;

		goto error;

	}



	rc = nfc_activate_target(dev, addr->target_idx, addr->nfc_protocol);

	if (rc)

		goto put_dev;