From: Michael Grzeschik m.grzeschik@pengutronix.de
commit 61aa709ca58a0dbeeb817bfa9230c1a92979f2c6 upstream.
The function uvcg_queue_next_buffer is used different than its name suggests. The return value nextbuf is never used by any caller. This patch reworks the function to its actual purpose, by removing the unused code and renaming it. The function name uvcg_complete_buffer makes it more clear that it is actually marking the current video buffer as complete.
Signed-off-by: Michael Grzeschik m.grzeschik@pengutronix.de Link: https://lore.kernel.org/r/20220402232744.3622565-2-m.grzeschik@pengutronix.d... Cc: Dan Vacura w36195@motorola.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/gadget/function/uvc_queue.c | 13 ++----------- drivers/usb/gadget/function/uvc_queue.h | 2 +- drivers/usb/gadget/function/uvc_video.c | 6 +++--- 3 files changed, 6 insertions(+), 15 deletions(-)
--- a/drivers/usb/gadget/function/uvc_queue.c +++ b/drivers/usb/gadget/function/uvc_queue.c @@ -335,24 +335,17 @@ int uvcg_queue_enable(struct uvc_video_q }
/* called with &queue_irqlock held.. */ -struct uvc_buffer *uvcg_queue_next_buffer(struct uvc_video_queue *queue, +void uvcg_complete_buffer(struct uvc_video_queue *queue, struct uvc_buffer *buf) { - struct uvc_buffer *nextbuf; - if ((queue->flags & UVC_QUEUE_DROP_INCOMPLETE) && buf->length != buf->bytesused) { buf->state = UVC_BUF_STATE_QUEUED; vb2_set_plane_payload(&buf->buf.vb2_buf, 0, 0); - return buf; + return; }
list_del(&buf->queue); - if (!list_empty(&queue->irqqueue)) - nextbuf = list_first_entry(&queue->irqqueue, struct uvc_buffer, - queue); - else - nextbuf = NULL;
buf->buf.field = V4L2_FIELD_NONE; buf->buf.sequence = queue->sequence++; @@ -360,8 +353,6 @@ struct uvc_buffer *uvcg_queue_next_buffe
vb2_set_plane_payload(&buf->buf.vb2_buf, 0, buf->bytesused); vb2_buffer_done(&buf->buf.vb2_buf, VB2_BUF_STATE_DONE); - - return nextbuf; }
struct uvc_buffer *uvcg_queue_head(struct uvc_video_queue *queue) --- a/drivers/usb/gadget/function/uvc_queue.h +++ b/drivers/usb/gadget/function/uvc_queue.h @@ -93,7 +93,7 @@ void uvcg_queue_cancel(struct uvc_video_
int uvcg_queue_enable(struct uvc_video_queue *queue, int enable);
-struct uvc_buffer *uvcg_queue_next_buffer(struct uvc_video_queue *queue, +void uvcg_complete_buffer(struct uvc_video_queue *queue, struct uvc_buffer *buf);
struct uvc_buffer *uvcg_queue_head(struct uvc_video_queue *queue); --- a/drivers/usb/gadget/function/uvc_video.c +++ b/drivers/usb/gadget/function/uvc_video.c @@ -83,7 +83,7 @@ uvc_video_encode_bulk(struct usb_request if (buf->bytesused == video->queue.buf_used) { video->queue.buf_used = 0; buf->state = UVC_BUF_STATE_DONE; - uvcg_queue_next_buffer(&video->queue, buf); + uvcg_complete_buffer(&video->queue, buf); video->fid ^= UVC_STREAM_FID;
video->payload_size = 0; @@ -154,7 +154,7 @@ uvc_video_encode_isoc_sg(struct usb_requ video->queue.buf_used = 0; buf->state = UVC_BUF_STATE_DONE; buf->offset = 0; - uvcg_queue_next_buffer(&video->queue, buf); + uvcg_complete_buffer(&video->queue, buf); video->fid ^= UVC_STREAM_FID; } } @@ -181,7 +181,7 @@ uvc_video_encode_isoc(struct usb_request if (buf->bytesused == video->queue.buf_used) { video->queue.buf_used = 0; buf->state = UVC_BUF_STATE_DONE; - uvcg_queue_next_buffer(&video->queue, buf); + uvcg_complete_buffer(&video->queue, buf); video->fid ^= UVC_STREAM_FID; } }