[media] dvb_usb_v2: use pointers to properties

Use pointers to properties as device and adapter properties are
constant. No need to embed and copy those structures.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/dvb-usb/dvb_usb.h

@@ -270,7 +270,7 @@ struct dvb_usb_adapter {
 #define DVB_USB_ADAP_STATE_DVB  0x001
 	int state;
 	struct dvb_usb_device *dev;
-	struct dvb_usb_adapter_properties props;
+	const struct dvb_usb_adapter_properties *props;
 	struct usb_data_stream stream;
 	u8  id;
 
@@ -316,7 +316,7 @@ struct dvb_usb_adapter {
  *  in size_of_priv of dvb_usb_properties).
  */
 struct dvb_usb_device {
-	struct dvb_usb_device_properties props;
+	const struct dvb_usb_device_properties *props;
 	const char *name;
 	const char *rc_map;
 	struct dvb_usb_rc rc;

drivers/media/dvb/dvb-usb/dvb_usb_dvb.c

@@ -41,13 +41,13 @@ int dvb_usbv2_adapter_stream_init(struct dvb_usb_adapter *adap)
 	adap->stream.user_priv = adap;
 
 	/* resolve USB stream configuration for buffer alloc */
-	if (adap->dev->props.get_usb_stream_config) {
-		ret = adap->dev->props.get_usb_stream_config(NULL,
+	if (adap->dev->props->get_usb_stream_config) {
+		ret = adap->dev->props->get_usb_stream_config(NULL,
 				&stream_props);
 		if (ret < 0)
 			return ret;
 	} else {
-		stream_props = adap->props.stream;
+		stream_props = adap->props->stream;
 	}
 
 	/* FIXME: can be removed as set later in anyway */
@@ -80,8 +80,8 @@ static int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff)
 		pr_debug("%s: stop feeding\n", __func__);
 		usb_urb_killv2(&adap->stream);
 
-		if (adap->dev->props.streaming_ctrl != NULL) {
-			ret = adap->dev->props.streaming_ctrl(adap, 0);
+		if (adap->dev->props->streaming_ctrl != NULL) {
+			ret = adap->dev->props->streaming_ctrl(adap, 0);
 			if (ret < 0) {
 				pr_err("%s: error while stopping stream\n",
 						KBUILD_MODNAME);
@@ -97,10 +97,10 @@ static int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff)
 			adap->pid_filtering ? "yes" : "no", dvbdmxfeed->pid,
 			dvbdmxfeed->pid, dvbdmxfeed->index,
 			onoff ? "on" : "off");
-	if (adap->props.caps & DVB_USB_ADAP_HAS_PID_FILTER &&
+	if (adap->props->caps & DVB_USB_ADAP_HAS_PID_FILTER &&
 			adap->pid_filtering &&
-			adap->props.pid_filter != NULL)
-		adap->props.pid_filter(adap, dvbdmxfeed->index,
+			adap->props->pid_filter != NULL)
+		adap->props->pid_filter(adap, dvbdmxfeed->index,
 				dvbdmxfeed->pid, onoff);
 
 	/* start the feed if this was the first feed and there is still a feed
@@ -111,8 +111,8 @@ static int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff)
 		unsigned int ts_props;
 
 		/* resolve TS configuration */
-		if (adap->dev->props.get_ts_config) {
-			ret = adap->dev->props.get_ts_config(
+		if (adap->dev->props->get_ts_config) {
+			ret = adap->dev->props->get_ts_config(
 					adap->fe[adap->active_fe],
 					&ts_props);
 			if (ret < 0)
@@ -129,14 +129,14 @@ static int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff)
 			adap->stream.complete = dvb_usb_data_complete;
 
 		/* resolve USB stream configuration */
-		if (adap->dev->props.get_usb_stream_config) {
-			ret = adap->dev->props.get_usb_stream_config(
+		if (adap->dev->props->get_usb_stream_config) {
+			ret = adap->dev->props->get_usb_stream_config(
 					adap->fe[adap->active_fe],
 					&stream_props);
 			if (ret < 0)
 				return ret;
 		} else {
-			stream_props = adap->props.stream;
+			stream_props = adap->props->stream;
 		}
 
 		pr_debug("%s: submitting all URBs\n", __func__);
@@ -144,11 +144,11 @@ static int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff)
 		usb_urb_submitv2(&adap->stream, &stream_props);
 
 		pr_debug("%s: controlling pid parser\n", __func__);
-		if (adap->props.caps & DVB_USB_ADAP_HAS_PID_FILTER &&
-				adap->props.caps &
+		if (adap->props->caps & DVB_USB_ADAP_HAS_PID_FILTER &&
+				adap->props->caps &
 				DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF &&
-				adap->props.pid_filter_ctrl != NULL) {
-			ret = adap->props.pid_filter_ctrl(adap,
+				adap->props->pid_filter_ctrl != NULL) {
+			ret = adap->props->pid_filter_ctrl(adap,
 					adap->pid_filtering);
 			if (ret < 0) {
 				pr_err("%s: could not handle pid_parser\n",
@@ -157,8 +157,8 @@ static int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff)
 			}
 		}
 		pr_debug("%s: start feeding\n", __func__);
-		if (adap->dev->props.streaming_ctrl != NULL) {
-			ret = adap->dev->props.streaming_ctrl(adap, 1);
+		if (adap->dev->props->streaming_ctrl != NULL) {
+			ret = adap->dev->props->streaming_ctrl(adap, 1);
 			if (ret < 0) {
 				pr_err("%s: error while enabling fifo\n",
 						KBUILD_MODNAME);
@@ -190,18 +190,18 @@ static int dvb_usb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
 int dvb_usbv2_adapter_dvb_init(struct dvb_usb_adapter *adap)
 {
 	int ret = dvb_register_adapter(&adap->dvb_adap, adap->dev->name,
-				       adap->dev->props.owner,
+				       adap->dev->props->owner,
 				       &adap->dev->udev->dev,
-				       adap->dev->props.adapter_nr);
+				       adap->dev->props->adapter_nr);
 	if (ret < 0) {
 		pr_debug("%s: dvb_register_adapter failed=%d\n", __func__, ret);
 		goto err;
 	}
 	adap->dvb_adap.priv = adap;
-	adap->dvb_adap.fe_ioctl_override = adap->props.fe_ioctl_override;
+	adap->dvb_adap.fe_ioctl_override = adap->props->fe_ioctl_override;
 
-	if (adap->dev->props.read_mac_address) {
-		if (adap->dev->props.read_mac_address(adap->dev,
+	if (adap->dev->props->read_mac_address) {
+		if (adap->dev->props->read_mac_address(adap->dev,
 				adap->dvb_adap.proposed_mac) == 0)
 			pr_info("%s: MAC address: %pM\n", KBUILD_MODNAME,
 					adap->dvb_adap.proposed_mac);
@@ -279,8 +279,8 @@ static int dvb_usb_fe_wakeup(struct dvb_frontend *fe)
 	if (ret < 0)
 		goto err;
 
-	if (adap->dev->props.frontend_ctrl) {
-		ret = adap->dev->props.frontend_ctrl(fe, 1);
+	if (adap->dev->props->frontend_ctrl) {
+		ret = adap->dev->props->frontend_ctrl(fe, 1);
 		if (ret < 0)
 			goto err;
 	}
@@ -310,8 +310,8 @@ static int dvb_usb_fe_sleep(struct dvb_frontend *fe)
 			goto err;
 	}
 
-	if (adap->dev->props.frontend_ctrl) {
-		ret = adap->dev->props.frontend_ctrl(fe, 0);
+	if (adap->dev->props->frontend_ctrl) {
+		ret = adap->dev->props->frontend_ctrl(fe, 0);
 		if (ret < 0)
 			goto err;
 	}
@@ -337,8 +337,8 @@ int dvb_usbv2_adapter_frontend_init(struct dvb_usb_adapter *adap)
 	memset(adap->fe, 0, sizeof(adap->fe));
 	adap->active_fe = -1;
 
-	if (adap->dev->props.frontend_attach) {
-		ret = adap->dev->props.frontend_attach(adap);
+	if (adap->dev->props->frontend_attach) {
+		ret = adap->dev->props->frontend_attach(adap);
 		if (ret < 0) {
 			pr_debug("%s: frontend_attach() failed=%d\n", __func__,
 					ret);
@@ -350,8 +350,8 @@ int dvb_usbv2_adapter_frontend_init(struct dvb_usb_adapter *adap)
 		goto err;
 	}
 
-	if (adap->dev->props.tuner_attach) {
-		ret = adap->dev->props.tuner_attach(adap);
+	if (adap->dev->props->tuner_attach) {
+		ret = adap->dev->props->tuner_attach(adap);
 		if (ret < 0) {
 			pr_debug("%s: tuner_attach() failed=%d\n", __func__,
 					ret);

drivers/media/dvb/dvb-usb/dvb_usb_init.c

@@ -30,14 +30,14 @@ static int dvb_usbv2_download_firmware(struct dvb_usb_device *d)
 	const char *name;
 
 	/* resolve firmware name */
-	name = d->props.firmware;
-	if (d->props.get_firmware_name) {
-		ret = d->props.get_firmware_name(d, &name);
+	name = d->props->firmware;
+	if (d->props->get_firmware_name) {
+		ret = d->props->get_firmware_name(d, &name);
 		if (ret < 0)
 			goto err;
 	}
 
-	if (!d->props.download_firmware) {
+	if (!d->props->download_firmware) {
 		ret = -EINVAL;
 		goto err;
 	}
@@ -54,7 +54,7 @@ static int dvb_usbv2_download_firmware(struct dvb_usb_device *d)
 	pr_info("%s: downloading firmware from file '%s'\n", KBUILD_MODNAME,
 			name);
 
-	ret = d->props.download_firmware(d, fw);
+	ret = d->props->download_firmware(d, fw);
 
 	release_firmware(fw);
 
@@ -71,13 +71,13 @@ static int dvb_usbv2_i2c_init(struct dvb_usb_device *d)
 {
 	int ret;
 
-	if (!d->props.i2c_algo) {
+	if (!d->props->i2c_algo) {
 		ret = 0;
 		goto err;
 	}
 
 	strlcpy(d->i2c_adap.name, d->name, sizeof(d->i2c_adap.name));
-	d->i2c_adap.algo = d->props.i2c_algo;
+	d->i2c_adap.algo = d->props->i2c_algo;
 	d->i2c_adap.algo_data = NULL;
 	d->i2c_adap.dev.parent = &d->udev->dev;
 
@@ -113,9 +113,9 @@ static int dvb_usbv2_adapter_init(struct dvb_usb_device *d)
 	int ret, i, adapter_count;
 
 	/* resolve adapter count */
-	adapter_count = d->props.num_adapters;
-	if (d->props.get_adapter_count) {
-		ret = d->props.get_adapter_count(d);
+	adapter_count = d->props->num_adapters;
+	if (d->props->get_adapter_count) {
+		ret = d->props->get_adapter_count(d);
 		if (ret < 0)
 			goto err;
 
@@ -125,28 +125,26 @@ static int dvb_usbv2_adapter_init(struct dvb_usb_device *d)
 	for (i = 0; i < adapter_count; i++) {
 		adap = &d->adapter[i];
 		adap->dev = d;
-		adap->id  = i;
-
-		memcpy(&adap->props, &d->props.adapter[i],
-				sizeof(struct dvb_usb_adapter_properties));
+		adap->id = i;
+		adap->props = &d->props->adapter[i];
 
 		/* speed - when running at FULL speed we need a HW PID filter */
 		if (d->udev->speed == USB_SPEED_FULL &&
-				!(adap->props.caps & DVB_USB_ADAP_HAS_PID_FILTER)) {
+				!(adap->props->caps & DVB_USB_ADAP_HAS_PID_FILTER)) {
 			pr_err("%s: this USB2.0 device cannot be run on a " \
 					"USB1.1 port (it lacks a hardware " \
 					"PID filter)\n", KBUILD_MODNAME);
 			ret = -ENODEV;
 			goto err;
 		} else if ((d->udev->speed == USB_SPEED_FULL &&
-				adap->props.caps & DVB_USB_ADAP_HAS_PID_FILTER) ||
-				(adap->props.caps & DVB_USB_ADAP_NEED_PID_FILTERING)) {
+				adap->props->caps & DVB_USB_ADAP_HAS_PID_FILTER) ||
+				(adap->props->caps & DVB_USB_ADAP_NEED_PID_FILTERING)) {
 			pr_info("%s: will use the device's hardware PID " \
 					"filter (table count: %d)\n",
 					KBUILD_MODNAME,
-					adap->props.pid_filter_count);
+					adap->props->pid_filter_count);
 			adap->pid_filtering  = 1;
-			adap->max_feed_count = adap->props.pid_filter_count;
+			adap->max_feed_count = adap->props->pid_filter_count;
 		} else {
 			pr_info("%s: will pass the complete MPEG2 transport " \
 					"stream to the software demuxer\n",
@@ -156,11 +154,11 @@ static int dvb_usbv2_adapter_init(struct dvb_usb_device *d)
 		}
 
 		if (!adap->pid_filtering && dvb_usb_force_pid_filter_usage &&
-				adap->props.caps & DVB_USB_ADAP_HAS_PID_FILTER) {
+				adap->props->caps & DVB_USB_ADAP_HAS_PID_FILTER) {
 			pr_info("%s: pid filter enabled by module option\n",
 					KBUILD_MODNAME);
 			adap->pid_filtering  = 1;
-			adap->max_feed_count = adap->props.pid_filter_count;
+			adap->max_feed_count = adap->props->pid_filter_count;
 		}
 
 		ret = dvb_usbv2_adapter_stream_init(adap);
@@ -229,8 +227,8 @@ static int dvb_usbv2_init(struct dvb_usb_device *d)
 	/* check the capabilities and set appropriate variables */
 	dvb_usbv2_device_power_ctrl(d, 1);
 
-	if (d->props.read_config) {
-		ret = d->props.read_config(d);
+	if (d->props->read_config) {
+		ret = d->props->read_config(d);
 		if (ret < 0)
 			goto err;
 	}
@@ -243,8 +241,8 @@ static int dvb_usbv2_init(struct dvb_usb_device *d)
 	if (ret < 0)
 		goto err;
 
-	if (d->props.init) {
-		ret = d->props.init(d);
+	if (d->props->init) {
+		ret = d->props->init(d);
 		if (ret < 0)
 			goto err;
 	}
@@ -274,8 +272,8 @@ int dvb_usbv2_device_power_ctrl(struct dvb_usb_device *d, int onoff)
 	if (d->powered == 0 || (onoff && d->powered == 1)) {
 		/* when switching from 1 to 0 or from 0 to 1 */
 		pr_debug("%s: power control=%d\n", __func__, onoff);
-		if (d->props.power_ctrl) {
-			ret = d->props.power_ctrl(d, onoff);
+		if (d->props->power_ctrl) {
+			ret = d->props->power_ctrl(d, onoff);
 			goto err;
 		}
 	}
@@ -304,8 +302,8 @@ static void dvb_usbv2_init_work(struct work_struct *work)
 
 	pr_debug("%s: work_pid=%d\n", __func__, d->work_pid);
 
-	if (d->props.size_of_priv) {
-		d->priv = kzalloc(d->props.size_of_priv, GFP_KERNEL);
+	if (d->props->size_of_priv) {
+		d->priv = kzalloc(d->props->size_of_priv, GFP_KERNEL);
 		if (!d->priv) {
 			pr_err("%s: kzalloc() failed\n", KBUILD_MODNAME);
 			ret = -ENOMEM;
@@ -313,8 +311,8 @@ static void dvb_usbv2_init_work(struct work_struct *work)
 		}
 	}
 
-	if (d->props.identify_state) {
-		ret = d->props.identify_state(d);
+	if (d->props->identify_state) {
+		ret = d->props->identify_state(d);
 		if (ret == 0) {
 			;
 		} else if (ret == COLD) {
@@ -388,11 +386,10 @@ int dvb_usbv2_probe(struct usb_interface *intf,
 	d->rc_map = driver_info->rc_map;
 	d->udev = interface_to_usbdev(intf);
 	d->intf = intf;
-	memcpy(&d->props, driver_info->props,
-			sizeof(struct dvb_usb_device_properties));
+	d->props = driver_info->props;
 
 	if (d->intf->cur_altsetting->desc.bInterfaceNumber !=
-			d->props.bInterfaceNumber) {
+			d->props->bInterfaceNumber) {
 		ret = -ENODEV;
 		goto err_kfree;
 	}
@@ -428,8 +425,8 @@ void dvb_usbv2_disconnect(struct usb_interface *intf)
 	if (d->work_pid != current->pid)
 		cancel_work_sync(&d->probe_work);
 
-	if (d->props.disconnect)
-		d->props.disconnect(d);
+	if (d->props->disconnect)
+		d->props->disconnect(d);
 
 	name = d->name;
 	dvb_usbv2_exit(d);

drivers/media/dvb/dvb-usb/dvb_usb_remote.c

@@ -43,10 +43,10 @@ int dvb_usbv2_remote_init(struct dvb_usb_device *d)
 	int ret;
 	struct rc_dev *dev;
 
-	if (dvb_usbv2_disable_rc_polling || !d->props.get_rc_config)
+	if (dvb_usbv2_disable_rc_polling || !d->props->get_rc_config)
 		return 0;
 
-	ret = d->props.get_rc_config(d, &d->rc);
+	ret = d->props->get_rc_config(d, &d->rc);
 	if (ret < 0)
 		goto err;
 
@@ -63,7 +63,7 @@ int dvb_usbv2_remote_init(struct dvb_usb_device *d)
 	dev->input_phys = d->rc_phys;
 	usb_to_input_id(d->udev, &dev->input_id);
 	/* TODO: likely RC-core should took const char * */
-	dev->driver_name = (char *) d->props.driver_name;
+	dev->driver_name = (char *) d->props->driver_name;
 	dev->driver_type = d->rc.driver_type;
 	dev->allowed_protos = d->rc.allowed_protos;
 	dev->change_protocol = d->rc.change_protocol;

drivers/media/dvb/dvb-usb/dvb_usb_urb.c

@@ -16,7 +16,7 @@ int dvb_usbv2_generic_rw(struct dvb_usb_device *d, u8 *wbuf, u16 wlen, u8 *rbuf,
 	if (!d || wbuf == NULL || wlen == 0)
 		return -EINVAL;
 
-	if (d->props.generic_bulk_ctrl_endpoint == 0) {
+	if (d->props->generic_bulk_ctrl_endpoint == 0) {
 		pr_err("%s: endpoint for generic control not specified\n",
 				KBUILD_MODNAME);
 		return -EINVAL;
@@ -30,7 +30,7 @@ int dvb_usbv2_generic_rw(struct dvb_usb_device *d, u8 *wbuf, u16 wlen, u8 *rbuf,
 			32, 1, wbuf, wlen, 0);
 
 	ret = usb_bulk_msg(d->udev, usb_sndbulkpipe(d->udev,
-			d->props.generic_bulk_ctrl_endpoint), wbuf, wlen,
+			d->props->generic_bulk_ctrl_endpoint), wbuf, wlen,
 			&actlen, 2000);
 
 	if (ret)
@@ -45,9 +45,9 @@ int dvb_usbv2_generic_rw(struct dvb_usb_device *d, u8 *wbuf, u16 wlen, u8 *rbuf,
 			msleep(delay_ms);
 
 		ret = usb_bulk_msg(d->udev, usb_rcvbulkpipe(d->udev,
-				d->props.generic_bulk_ctrl_endpoint_response ?
-				d->props.generic_bulk_ctrl_endpoint_response :
-				d->props.generic_bulk_ctrl_endpoint),
+				d->props->generic_bulk_ctrl_endpoint_response ?
+				d->props->generic_bulk_ctrl_endpoint_response :
+				d->props->generic_bulk_ctrl_endpoint),
 				rbuf, rlen, &actlen, 2000);
 
 		if (ret)