[media] cx88: drop the bogus 'queue' list in dmaqueue

This list is only used if the width, height and/or format of a buffer has
changed, but that can never happen. Remove it and all associated code.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

3 files changed, 3 insertions, 68 deletions

diff --git a/drivers/media/pci/cx88/cx88-mpeg.c b/drivers/media/pci/cx88/cx88-mpeg.c
index 2803b6f17646..5f59901b2460 100644
--- a/drivers/media/pci/cx88/cx88-mpeg.c
+++ b/drivers/media/pci/cx88/cx88-mpeg.c
@@ -210,37 +210,7 @@ static int cx8802_restart_queue(struct cx8802_dev    *dev,
 
         dprintk( 1, "cx8802_restart_queue\n" );
         if (list_empty(&q->active))
-        {
-                struct cx88_buffer *prev;
-                prev = NULL;
-
-                dprintk(1, "cx8802_restart_queue: queue is empty\n" );
-
-                for (;;) {
-                        if (list_empty(&q->queued))
-                                return 0;
-                        buf = list_entry(q->queued.next, struct cx88_buffer, vb.queue);
-                        if (NULL == prev) {
-                                list_move_tail(&buf->vb.queue, &q->active);
-                                cx8802_start_dma(dev, q, buf);
-                                buf->vb.state = VIDEOBUF_ACTIVE;
-                                buf->count    = q->count++;
-                                mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
-                                dprintk(1,"[%p/%d] restart_queue - first active\n",
-                                        buf,buf->vb.i);
-
-                        } else {
-                                list_move_tail(&buf->vb.queue, &q->active);
-                                buf->vb.state = VIDEOBUF_ACTIVE;
-                                buf->count    = q->count++;
-                                prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
-                                dprintk(1,"[%p/%d] restart_queue - move to active\n",
-                                        buf,buf->vb.i);
-                        }
-                        prev = buf;
-                }
                 return 0;
-        }
 
         buf = list_entry(q->active.next, struct cx88_buffer, vb.queue);
         dprintk(2,"restart_queue [%p/%d]: restart dma\n",
@@ -486,7 +456,6 @@ static int cx8802_init_common(struct cx8802_dev *dev)
 
         /* init dma queue */
         INIT_LIST_HEAD(&dev->mpegq.active);
-        INIT_LIST_HEAD(&dev->mpegq.queued);
         dev->mpegq.timeout.function = cx8802_timeout;
         dev->mpegq.timeout.data     = (unsigned long)dev;
         init_timer(&dev->mpegq.timeout);
diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c
index 095542316917..a1d704235478 100644
--- a/drivers/media/pci/cx88/cx88-video.c
+++ b/drivers/media/pci/cx88/cx88-video.c
@@ -470,7 +470,7 @@ static int restart_video_queue(struct cx8800_dev    *dev,
                                struct cx88_dmaqueue *q)
 {
         struct cx88_core *core = dev->core;
-        struct cx88_buffer *buf, *prev;
+        struct cx88_buffer *buf;
 
         if (!list_empty(&q->active)) {
                 buf = list_entry(q->active.next, struct cx88_buffer, vb.queue);
@@ -480,33 +480,8 @@ static int restart_video_queue(struct cx8800_dev    *dev,
                 list_for_each_entry(buf, &q->active, vb.queue)
                         buf->count = q->count++;
                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
-                return 0;
-        }
-
-        prev = NULL;
-        for (;;) {
-                if (list_empty(&q->queued))
-                        return 0;
-                buf = list_entry(q->queued.next, struct cx88_buffer, vb.queue);
-                if (NULL == prev) {
-                        list_move_tail(&buf->vb.queue, &q->active);
-                        start_video_dma(dev, q, buf);
-                        buf->vb.state = VIDEOBUF_ACTIVE;
-                        buf->count    = q->count++;
-                        mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
-                        dprintk(2,"[%p/%d] restart_queue - first active\n",
-                                buf,buf->vb.i);
-
-                } else {
-                        list_move_tail(&buf->vb.queue, &q->active);
-                        buf->vb.state = VIDEOBUF_ACTIVE;
-                        buf->count    = q->count++;
-                        prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
-                        dprintk(2,"[%p/%d] restart_queue - move to active\n",
-                                buf,buf->vb.i);
-                }
-                prev = buf;
         }
+        return 0;
 }
 
 /* ------------------------------------------------------------------ */
@@ -613,13 +588,7 @@ buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
         buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
         buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
 
-        if (!list_empty(&q->queued)) {
-                list_add_tail(&buf->vb.queue,&q->queued);
-                buf->vb.state = VIDEOBUF_QUEUED;
-                dprintk(2,"[%p/%d] buffer_queue - append to queued\n",
-                        buf, buf->vb.i);
-
-        } else if (list_empty(&q->active)) {
+        if (list_empty(&q->active)) {
                 list_add_tail(&buf->vb.queue,&q->active);
                 start_video_dma(dev, q, buf);
                 buf->vb.state = VIDEOBUF_ACTIVE;
@@ -1691,7 +1660,6 @@ static int cx8800_initdev(struct pci_dev *pci_dev,
 
         /* init video dma queues */
         INIT_LIST_HEAD(&dev->vidq.active);
-        INIT_LIST_HEAD(&dev->vidq.queued);
         dev->vidq.timeout.function = cx8800_vid_timeout;
         dev->vidq.timeout.data     = (unsigned long)dev;
         init_timer(&dev->vidq.timeout);
@@ -1700,7 +1668,6 @@ static int cx8800_initdev(struct pci_dev *pci_dev,
 
         /* init vbi dma queues */
         INIT_LIST_HEAD(&dev->vbiq.active);
-        INIT_LIST_HEAD(&dev->vbiq.queued);
         dev->vbiq.timeout.function = cx8800_vbi_timeout;
         dev->vbiq.timeout.data     = (unsigned long)dev;
         init_timer(&dev->vbiq.timeout);
diff --git a/drivers/media/pci/cx88/cx88.h b/drivers/media/pci/cx88/cx88.h
index ddc7991723eb..77ec5427a986 100644
--- a/drivers/media/pci/cx88/cx88.h
+++ b/drivers/media/pci/cx88/cx88.h
@@ -324,7 +324,6 @@ struct cx88_buffer {
 
 struct cx88_dmaqueue {
         struct list_head       active;
-        struct list_head       queued;
         struct timer_list      timeout;
         struct btcx_riscmem    stopper;
         u32                    count;