v4l2_m2m_buf_remove_by_buf
EXPORT_SYMBOL_GPL(v4l2_m2m_buf_remove_by_buf);
void v4l2_m2m_buf_remove_by_buf(struct v4l2_m2m_queue_ctx *q_ctx,
v4l2_m2m_buf_remove_by_buf(&m2m_ctx->out_q_ctx, vbuf);
v4l2_m2m_buf_remove_by_buf(&m2m_ctx->cap_q_ctx, vbuf);