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[media] videobuf2-core: move __setup_lengths into __vb2_queue_alloc() 

Rather than setting up the lengths at the end, set them up when
the vb2_buffer is allocated. This also ensures that buf_init()
sees the right length values.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Hans Verkuil 2015-11-20 09:25:52 -02:00 committed by Mauro Carvalho Chehab
parent 10cc3b1e12
commit 489648afcd
1 changed files with 3 additions and 21 deletions
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24
drivers/media/v4l2-core/videobuf2-core.c
View File

@ -286,25 +286,6 @@ static void __vb2_buf_dmabuf_put(struct vb2_buffer *vb)
__vb2_plane_dmabuf_put(vb, &vb->planes[plane]);
}
/**
* __setup_lengths() - setup initial lengths for every plane in
* every buffer on the queue
*/
static void __setup_lengths(struct vb2_queue *q, unsigned int n)
{
unsigned int buffer, plane;
struct vb2_buffer *vb;
for (buffer = q->num_buffers; buffer < q->num_buffers + n; ++buffer) {
vb = q->bufs[buffer];
if (!vb)
continue;
for (plane = 0; plane < vb->num_planes; ++plane)
vb->planes[plane].length = q->plane_sizes[plane];
}
}
/**
* __setup_offsets() - setup unique offsets ("cookies") for every plane in
* every buffer on the queue
@ -351,7 +332,7 @@ static void __setup_offsets(struct vb2_queue *q, unsigned int n)
static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
unsigned int num_buffers, unsigned int num_planes)
{
unsigned int buffer;
unsigned int buffer, plane;
struct vb2_buffer *vb;
int ret;
@ -369,6 +350,8 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
vb->index = q->num_buffers + buffer;
vb->type = q->type;
vb->memory = memory;
for (plane = 0; plane < num_planes; ++plane)
vb->planes[plane].length = q->plane_sizes[plane];
/* Allocate video buffer memory for the MMAP type */
if (memory == VB2_MEMORY_MMAP) {
@ -397,7 +380,6 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
q->bufs[q->num_buffers + buffer] = vb;
}
__setup_lengths(q, buffer);
if (memory == VB2_MEMORY_MMAP)
__setup_offsets(q, buffer);