Remove input field in struct v4l2_buffer and flag V4L2_BUF_FLAG_INPUT which
tells the former is valid. The flag is used by no driver currently.
Signed-off-by: Sakari Ailus <sakari.ai...@iki.fi>
---
Hi all,
I thought this would be a good time to get rid of the input field in
v4l2_buffer to avoid writing more useless compat code for it --- the enum
compat code.
Comments are welcome. This patch is compile tested on videobuf and
videobuf2.
drivers/media/video/v4l2-compat-ioctl32.c | 8 +++-----
drivers/media/video/videobuf-core.c | 16 ----------------
drivers/media/video/videobuf2-core.c | 4 +---
include/linux/videodev2.h | 4 +---
include/media/videobuf-core.h | 2 --
5 files changed, 5 insertions(+), 29 deletions(-)
diff --git a/drivers/media/video/v4l2-compat-ioctl32.c
b/drivers/media/video/v4l2-compat-ioctl32.c
index 2829d25..a2ddc37 100644
--- a/drivers/media/video/v4l2-compat-ioctl32.c
+++ b/drivers/media/video/v4l2-compat-ioctl32.c
@@ -387,8 +387,7 @@ static int get_v4l2_buffer32(struct v4l2_buffer *kp, struct
v4l2_buffer32 __user
get_user(kp->index, &up->index) ||
get_user(kp->type, &up->type) ||
get_user(kp->flags, &up->flags) ||
- get_user(kp->memory, &up->memory) ||
- get_user(kp->input, &up->input))
+ get_user(kp->memory, &up->memory)
return -EFAULT;
if (V4L2_TYPE_IS_OUTPUT(kp->type))
@@ -472,8 +471,7 @@ static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct
v4l2_buffer32 __user
put_user(kp->index, &up->index) ||
put_user(kp->type, &up->type) ||
put_user(kp->flags, &up->flags) ||
- put_user(kp->memory, &up->memory) ||
- put_user(kp->input, &up->input))
+ put_user(kp->memory, &up->memory)
return -EFAULT;
if (put_user(kp->bytesused, &up->bytesused) ||
@@ -482,7 +480,7 @@ static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct
v4l2_buffer32 __user
put_user(kp->timestamp.tv_usec, &up->timestamp.tv_usec) ||
copy_to_user(&up->timecode, &kp->timecode, sizeof(struct
v4l2_timecode)) ||
put_user(kp->sequence, &up->sequence) ||
- put_user(kp->reserved, &up->reserved))
+ copy_to_user(&kp->reserved, &up->reserved, sizeof(kp->reserved))
return -EFAULT;
if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) {
diff --git a/drivers/media/video/videobuf-core.c
b/drivers/media/video/videobuf-core.c
index ffdf59c..bf7a326 100644
--- a/drivers/media/video/videobuf-core.c
+++ b/drivers/media/video/videobuf-core.c
@@ -359,11 +359,6 @@ static void videobuf_status(struct videobuf_queue *q,
struct v4l2_buffer *b,
break;
}
- if (vb->input != UNSET) {
- b->flags |= V4L2_BUF_FLAG_INPUT;
- b->input = vb->input;
- }
-
b->field = vb->field;
b->timestamp = vb->ts;
b->bytesused = vb->size;
@@ -402,7 +397,6 @@ int __videobuf_mmap_setup(struct videobuf_queue *q,
break;
q->bufs[i]->i = i;
- q->bufs[i]->input = UNSET;
q->bufs[i]->memory = memory;
q->bufs[i]->bsize = bsize;
switch (memory) {
@@ -566,16 +560,6 @@ int videobuf_qbuf(struct videobuf_queue *q, struct
v4l2_buffer *b)
goto done;
}
- if (b->flags & V4L2_BUF_FLAG_INPUT) {
- if (b->input >= q->inputs) {
- dprintk(1, "qbuf: wrong input.\n");
- goto done;
- }
- buf->input = b->input;
- } else {
- buf->input = UNSET;
- }
-
switch (b->memory) {
case V4L2_MEMORY_MMAP:
if (0 == buf->baddr) {
diff --git a/drivers/media/video/videobuf2-core.c
b/drivers/media/video/videobuf2-core.c
index 3786d88..0daaec7 100644
--- a/drivers/media/video/videobuf2-core.c
+++ b/drivers/media/video/videobuf2-core.c
@@ -338,8 +338,7 @@ static int __fill_v4l2_buffer(struct vb2_buffer *vb, struct
v4l2_buffer *b)
/* Copy back data such as timestamp, flags, input, etc. */
memcpy(b, &vb->v4l2_buf, offsetof(struct v4l2_buffer, m));
- b->input = vb->v4l2_buf.input;
- b->reserved = vb->v4l2_buf.reserved;
+ memcpy(b->reserved, vb->v4l2_buf.reserved, sizeof(b->reserved));
if (V4L2_TYPE_IS_MULTIPLANAR(q->type)) {
ret = __verify_planes_array(vb, b);
@@ -860,7 +859,6 @@ static int __fill_vb2_buffer(struct vb2_buffer *vb, const
struct v4l2_buffer *b,
vb->v4l2_buf.field = b->field;
vb->v4l2_buf.timestamp = b->timestamp;
- vb->v4l2_buf.input = b->input;
vb->v4l2_buf.flags = b->flags & ~V4L2_BUFFER_STATE_FLAGS;
return 0;
diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index 5a09ac3..ae3062d 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -652,8 +652,7 @@ struct v4l2_buffer {
struct v4l2_plane *planes;
} m;
__u32 length;
- __u32 input;
- __u32 reserved;
+ __u32 reserved[2];
};
/* Flags for 'flags' field */
@@ -666,7 +665,6 @@ struct v4l2_buffer {
/* Buffer is ready, but the data contained within is corrupted. */
#define V4L2_BUF_FLAG_ERROR 0x0040
#define V4L2_BUF_FLAG_TIMECODE 0x0100 /* timecode field is valid */
-#define V4L2_BUF_FLAG_INPUT 0x0200 /* input field is valid */
#define V4L2_BUF_FLAG_PREPARED 0x0400 /* Buffer is prepared for queuing */
/* Cache handling flags */
#define V4L2_BUF_FLAG_NO_CACHE_INVALIDATE 0x0800
diff --git a/include/media/videobuf-core.h b/include/media/videobuf-core.h
index 90ed895..4511d75 100644
--- a/include/media/videobuf-core.h
+++ b/include/media/videobuf-core.h
@@ -19,8 +19,6 @@
#include <linux/poll.h>
#include <linux/videodev2.h>
-#define UNSET (-1U)
-
struct videobuf_buffer;
struct videobuf_queue;
--
1.7.2.5
--
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