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V4L/DVB (9265): videobuf: data storage optimisation

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To optimise data storage redundant vars are removed.

Signed-off-by: Darron Broad <darron@kewl.org>
Signed-off-by: Steven Toth <stoth@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Darron Broad 2008-10-15 13:43:41 -03:00 committed by Mauro Carvalho Chehab
parent 6594690b39
commit 7bdf84fc47
5 changed files with 10 additions and 12 deletions
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2
drivers/media/video/cx23885/cx23885-core.c
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@ -643,7 +643,7 @@ static int cx23885_init_tsport(struct cx23885_dev *dev,
init_timer(&port->mpegq.timeout);
mutex_init(&port->frontends.lock);
INIT_LIST_HEAD(&port->frontends.frontend.felist);
INIT_LIST_HEAD(&port->frontends.felist);
port->frontends.active_fe_id = 0;
/* This should be hardcoded allow a single frontend

2
drivers/media/video/cx88/cx88-mpeg.c
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@ -802,7 +802,7 @@ static int __devinit cx8802_probe(struct pci_dev *pci_dev,
list_add_tail(&dev->devlist,&cx8802_devlist);
mutex_init(&dev->frontends.lock);
INIT_LIST_HEAD(&dev->frontends.frontend.felist);
INIT_LIST_HEAD(&dev->frontends.felist);
printk(KERN_INFO "%s() allocating %d frontend(s)\n", __func__, core->board.num_frontends);

2
drivers/media/video/saa7134/saa7134-dvb.c
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@ -953,7 +953,7 @@ static int dvb_init(struct saa7134_dev *dev)
/* FIXME: add support for multi-frontend */
mutex_init(&dev->frontends.lock);
INIT_LIST_HEAD(&dev->frontends.frontend.felist);
INIT_LIST_HEAD(&dev->frontends.felist);
dev->frontends.active_fe_id = 0;
printk(KERN_INFO "%s() allocating 1 frontend\n", __func__);

11
drivers/media/video/videobuf-dvb.c
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@ -162,9 +162,8 @@ int videobuf_dvb_register_bus(struct videobuf_dvb_frontends *f,
/* Attach all of the frontends to the adapter */
mutex_lock(&f->lock);
list_for_each_safe(list, q, &f->frontend.felist) {
list_for_each_safe(list, q, &f->felist) {
fe = list_entry(list, struct videobuf_dvb_frontend, felist);
res = videobuf_dvb_register_frontend(&f->adapter, &fe->dvb);
if (res < 0) {
printk(KERN_WARNING "%s: videobuf_dvb_register_frontend failed (errno = %d)\n",
@ -290,7 +289,7 @@ void videobuf_dvb_unregister_bus(struct videobuf_dvb_frontends *f)
struct videobuf_dvb_frontend *fe;
mutex_lock(&f->lock);
list_for_each_safe(list, q, &f->frontend.felist) {
list_for_each_safe(list, q, &f->felist) {
fe = list_entry(list, struct videobuf_dvb_frontend, felist);
dvb_net_release(&fe->dvb.net);
@ -316,7 +315,7 @@ struct videobuf_dvb_frontend * videobuf_dvb_get_frontend(struct videobuf_dvb_fro
mutex_lock(&f->lock);
list_for_each_safe(list, q, &f->frontend.felist) {
list_for_each_safe(list, q, &f->felist) {
fe = list_entry(list, struct videobuf_dvb_frontend, felist);
if (fe->id == id) {
ret = fe;
@ -337,7 +336,7 @@ int videobuf_dvb_find_frontend(struct videobuf_dvb_frontends *f, struct dvb_fron
mutex_lock(&f->lock);
list_for_each_safe(list, q, &f->frontend.felist) {
list_for_each_safe(list, q, &f->felist) {
fe = list_entry(list, struct videobuf_dvb_frontend, felist);
if (fe->dvb.frontend == p) {
ret = fe->id;
@ -363,7 +362,7 @@ struct videobuf_dvb_frontend * videobuf_dvb_alloc_frontend(void *private, struct
mutex_init(&fe->dvb.lock);
mutex_lock(&f->lock);
list_add_tail(&fe->felist,&f->frontend.felist);
list_add_tail(&fe->felist,&f->felist);
mutex_unlock(&f->lock);
fail_alloc:

5
include/media/videobuf-dvb.h
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@ -16,7 +16,6 @@ struct videobuf_dvb {
int nfeeds;
/* videobuf_dvb_(un)register manges this */
struct dvb_adapter adapter;
struct dvb_demux demux;
struct dmxdev dmxdev;
struct dmx_frontend fe_hw;
@ -25,17 +24,17 @@ struct videobuf_dvb {
};
struct videobuf_dvb_frontend {
void *dev;
struct list_head felist;
void *dev;
int id;
struct videobuf_dvb dvb;
};
struct videobuf_dvb_frontends {
struct list_head felist;
struct mutex lock;
struct dvb_adapter adapter;
int active_fe_id; /* Indicates which frontend in the felist is in use */
struct videobuf_dvb_frontend frontend;
int gate; /* Frontend with gate control 0=!MFE,1=fe0,2=fe1 etc */
};