From ec0dd2f20cb46c3c1fb8a746983c1fe395fd4af3 Mon Sep 17 00:00:00 2001 From: Antti Palosaari Date: Mon, 18 Jun 2012 20:09:07 -0300 Subject: [PATCH] [media] dvb_usb_v2: use container_of() for adapter to device We dont need that pointer as we can use container_of() macro thus remove it. Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/dvb-usb/dvb_usb.h | 4 +- drivers/media/dvb/dvb-usb/dvb_usb_dvb.c | 53 +++++++++++++----------- drivers/media/dvb/dvb-usb/dvb_usb_init.c | 1 - 3 files changed, 30 insertions(+), 28 deletions(-) diff --git a/drivers/media/dvb/dvb-usb/dvb_usb.h b/drivers/media/dvb/dvb-usb/dvb_usb.h index 933d69004ab7..6b6b7dab8ae4 100644 --- a/drivers/media/dvb/dvb-usb/dvb_usb.h +++ b/drivers/media/dvb/dvb-usb/dvb_usb.h @@ -23,7 +23,8 @@ #include "dvb-usb-ids.h" /* helper macros for every DVB USB driver use */ -#define adap_to_d(adap) ((adap)->dev) +#define adap_to_d(adap) (container_of(adap, struct dvb_usb_device, \ + adapter[adap->id])) #define adap_to_priv(adap) (adap_to_d(adap)->priv) #define fe_to_adap(fe) ((struct dvb_usb_adapter *) ((fe)->dvb->priv)) #define fe_to_d(fe) (adap_to_d(fe_to_adap(fe))) @@ -297,7 +298,6 @@ struct usb_data_stream { * @stream: the usb data stream. */ struct dvb_usb_adapter { - struct dvb_usb_device *dev; const struct dvb_usb_adapter_properties *props; struct usb_data_stream stream; u8 id; diff --git a/drivers/media/dvb/dvb-usb/dvb_usb_dvb.c b/drivers/media/dvb/dvb-usb/dvb_usb_dvb.c index 9e1bf03e03b3..27139a2c8d4a 100644 --- a/drivers/media/dvb/dvb-usb/dvb_usb_dvb.c +++ b/drivers/media/dvb/dvb-usb/dvb_usb_dvb.c @@ -33,7 +33,7 @@ int dvb_usbv2_adapter_stream_init(struct dvb_usb_adapter *adap) { pr_debug("%s: adap=%d\n", __func__, adap->id); - adap->stream.udev = adap->dev->udev; + adap->stream.udev = adap_to_d(adap)->udev; adap->stream.user_priv = adap; adap->stream.complete = dvb_usb_data_complete; @@ -52,6 +52,7 @@ int dvb_usbv2_adapter_stream_exit(struct dvb_usb_adapter *adap) static int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff) { struct dvb_usb_adapter *adap = dvbdmxfeed->demux->priv; + struct dvb_usb_device *d = adap_to_d(adap); int newfeedcount, ret; if (adap == NULL) { @@ -69,8 +70,8 @@ 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 (d->props->streaming_ctrl != NULL) { + ret = d->props->streaming_ctrl(adap, 0); if (ret < 0) { pr_err("%s: error while stopping stream\n", KBUILD_MODNAME); @@ -103,9 +104,8 @@ static int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff) mutex_lock(&adap->sync_mutex); /* resolve TS configuration */ - if (adap->dev->props->get_ts_config) { - ret = adap->dev->props->get_ts_config( - adap->fe[adap->active_fe], + if (d->props->get_ts_config) { + ret = d->props->get_ts_config(adap->fe[adap->active_fe], &ts_props); if (ret < 0) goto err_mutex_unlock; @@ -121,10 +121,10 @@ 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) { + if (d->props->get_usb_stream_config) { memcpy(&stream_props, &adap->props->stream, sizeof(struct usb_data_stream_properties)); - ret = adap->dev->props->get_usb_stream_config( + ret = d->props->get_usb_stream_config( adap->fe[adap->active_fe], &stream_props); if (ret < 0) @@ -150,8 +150,8 @@ 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 (d->props->streaming_ctrl != NULL) { + ret = d->props->streaming_ctrl(adap, 1); if (ret < 0) { pr_err("%s: error while enabling fifo\n", KBUILD_MODNAME); @@ -186,11 +186,11 @@ static int dvb_usb_stop_feed(struct dvb_demux_feed *dvbdmxfeed) int dvb_usbv2_adapter_dvb_init(struct dvb_usb_adapter *adap) { int ret; + struct dvb_usb_device *d = adap_to_d(adap); pr_debug("%s: adap=%d\n", __func__, adap->id); - ret = dvb_register_adapter(&adap->dvb_adap, adap->dev->name, - adap->dev->props->owner, &adap->dev->udev->dev, - adap->dev->props->adapter_nr); + ret = dvb_register_adapter(&adap->dvb_adap, d->name, d->props->owner, + &d->udev->dev, d->props->adapter_nr); if (ret < 0) { pr_debug("%s: dvb_register_adapter() failed=%d\n", __func__, ret); @@ -199,8 +199,8 @@ int dvb_usbv2_adapter_dvb_init(struct dvb_usb_adapter *adap) adap->dvb_adap.priv = adap; - if (adap->dev->props->read_mac_address) { - ret = adap->dev->props->read_mac_address(adap, + if (d->props->read_mac_address) { + ret = d->props->read_mac_address(adap, adap->dvb_adap.proposed_mac); if (ret < 0) goto err_dmx; @@ -273,15 +273,16 @@ static int dvb_usb_fe_wakeup(struct dvb_frontend *fe) { int ret; struct dvb_usb_adapter *adap = fe->dvb->priv; + struct dvb_usb_device *d = adap_to_d(adap); mutex_lock(&adap->sync_mutex); pr_debug("%s: adap=%d fe=%d\n", __func__, adap->id, fe->id); - ret = dvb_usbv2_device_power_ctrl(adap->dev, 1); + ret = dvb_usbv2_device_power_ctrl(d, 1); if (ret < 0) goto err; - if (adap->dev->props->frontend_ctrl) { - ret = adap->dev->props->frontend_ctrl(fe, 1); + if (d->props->frontend_ctrl) { + ret = d->props->frontend_ctrl(fe, 1); if (ret < 0) goto err; } @@ -306,6 +307,7 @@ static int dvb_usb_fe_sleep(struct dvb_frontend *fe) { int ret; struct dvb_usb_adapter *adap = fe->dvb->priv; + struct dvb_usb_device *d = adap_to_d(adap); mutex_lock(&adap->sync_mutex); pr_debug("%s: adap=%d fe=%d\n", __func__, adap->id, fe->id); @@ -315,13 +317,13 @@ 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 (d->props->frontend_ctrl) { + ret = d->props->frontend_ctrl(fe, 0); if (ret < 0) goto err; } - ret = dvb_usbv2_device_power_ctrl(adap->dev, 0); + ret = dvb_usbv2_device_power_ctrl(d, 0); if (ret < 0) goto err; @@ -338,13 +340,14 @@ err: int dvb_usbv2_adapter_frontend_init(struct dvb_usb_adapter *adap) { int ret, i, count_registered = 0; + struct dvb_usb_device *d = adap_to_d(adap); pr_debug("%s: adap=%d\n", __func__, adap->id); 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 (d->props->frontend_attach) { + ret = d->props->frontend_attach(adap); if (ret < 0) { pr_debug("%s: frontend_attach() failed=%d\n", __func__, ret); @@ -375,8 +378,8 @@ int dvb_usbv2_adapter_frontend_init(struct dvb_usb_adapter *adap) count_registered++; } - if (adap->dev->props->tuner_attach) { - ret = adap->dev->props->tuner_attach(adap); + if (d->props->tuner_attach) { + ret = d->props->tuner_attach(adap); if (ret < 0) { pr_debug("%s: tuner_attach() failed=%d\n", __func__, ret); diff --git a/drivers/media/dvb/dvb-usb/dvb_usb_init.c b/drivers/media/dvb/dvb-usb/dvb_usb_init.c index e393fb557398..2624daa94b4f 100644 --- a/drivers/media/dvb/dvb-usb/dvb_usb_init.c +++ b/drivers/media/dvb/dvb-usb/dvb_usb_init.c @@ -226,7 +226,6 @@ 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; adap->props = &d->props->adapter[i]; -- 2.20.1