Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted

Pull media updates from Mauro Carvalho Chehab:

 - v4l2-core: added ISP statistics support and per-block validation

 - v4l2-core: Allow unknown HDR10 white point and luminance

 - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor

 - New codec: Milos: VPU v2.0 codec support

 - isp driver: gained support for Dreamchip RPPX1 ISP framework

 - vsp1 driver: gained support for RZ/T2H and RZ/N2H

 - Novalake driver: gained CVS support for new NVL hardware

 - dvb-core: fix feed leak on failed DMX_ADD_PID

 - several driver fixes, cleanups and minor improvements

* tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits)
  media: ipu-bridge: check all DMI entries when overriding sensor rotation
  media: v4l2-async: avoid deleting unlinked ASC entry on link error
  media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement
  media: intel/ipu6: fix async notifier cleanup leak on parse error
  media: staging/ipu7: fix async notifier UAF on probe error path
  media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path
  media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem()
  media: rcar-isp: Fix VSPX reference leaks
  media: rcar-isp: Release ISPCORE resources
  media: i2c: imx415: Release runtime PM reference on VBLANK error
  media: i2c: imx415: Return test pattern write errors
  media: renesas: vsp1: Declare index variables in for loop statement
  media: renesas: vsp1: Make reset control optional to support platforms without a reset line
  media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs
  media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs
  media: nxp: imx8-isi: Add additional 32-bit RGB format support
  media: nxp: imx8-isi: Add 16-bit raw Bayer format support
  media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams
  media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks
  media: nxp: imx8-isi: Correct color map between V4L2 and ISI
  ...

1 files changed, 88 insertions, 0 deletions

diff --git a/net/nfc/af_nfc.c b/net/nfc/af_nfc.c
new file mode 100644
index 000000000..dda323e0a
--- /dev/null
+++ b/net/nfc/af_nfc.c
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2011 Instituto Nokia de Tecnologia
+ *
+ * Authors:
+ *    Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
+ *    Lauro Ramos Venancio <lauro.venancio@openbossa.org>
+ */
+
+#include <linux/nfc.h>
+#include <linux/module.h>
+
+#include "nfc.h"
+
+static DEFINE_RWLOCK(proto_tab_lock);
+static const struct nfc_protocol *proto_tab[NFC_SOCKPROTO_MAX];
+
+static int nfc_sock_create(struct net *net, struct socket *sock, int proto,
+			   int kern)
+{
+	int rc = -EPROTONOSUPPORT;
+
+	if (net != &init_net)
+		return -EAFNOSUPPORT;
+
+	if (proto < 0 || proto >= NFC_SOCKPROTO_MAX)
+		return -EINVAL;
+
+	read_lock(&proto_tab_lock);
+	if (proto_tab[proto] &&	try_module_get(proto_tab[proto]->owner)) {
+		rc = proto_tab[proto]->create(net, sock, proto_tab[proto], kern);
+		module_put(proto_tab[proto]->owner);
+	}
+	read_unlock(&proto_tab_lock);
+
+	return rc;
+}
+
+static const struct net_proto_family nfc_sock_family_ops = {
+	.owner  = THIS_MODULE,
+	.family = PF_NFC,
+	.create = nfc_sock_create,
+};
+
+int nfc_proto_register(const struct nfc_protocol *nfc_proto)
+{
+	int rc;
+
+	if (nfc_proto->id < 0 || nfc_proto->id >= NFC_SOCKPROTO_MAX)
+		return -EINVAL;
+
+	rc = proto_register(nfc_proto->proto, 0);
+	if (rc)
+		return rc;
+
+	write_lock(&proto_tab_lock);
+	if (proto_tab[nfc_proto->id])
+		rc = -EBUSY;
+	else
+		proto_tab[nfc_proto->id] = nfc_proto;
+	write_unlock(&proto_tab_lock);
+
+	if (rc)
+		proto_unregister(nfc_proto->proto);
+
+	return rc;
+}
+EXPORT_SYMBOL(nfc_proto_register);
+
+void nfc_proto_unregister(const struct nfc_protocol *nfc_proto)
+{
+	write_lock(&proto_tab_lock);
+	proto_tab[nfc_proto->id] = NULL;
+	write_unlock(&proto_tab_lock);
+
+	proto_unregister(nfc_proto->proto);
+}
+EXPORT_SYMBOL(nfc_proto_unregister);
+
+int __init af_nfc_init(void)
+{
+	return sock_register(&nfc_sock_family_ops);
+}
+
+void __exit af_nfc_exit(void)
+{
+	sock_unregister(PF_NFC);
+}