vb2_get_unmapped_area
EXPORT_SYMBOL_GPL(vb2_get_unmapped_area);
return vb2_get_unmapped_area(vdev->queue, addr, len, pgoff, flags);
return vb2_get_unmapped_area(vq, addr, len, pgoff, flags);
return vb2_get_unmapped_area(&queue->queue, 0, 0, pgoff, 0);
unsigned long vb2_get_unmapped_area(struct vb2_queue *q,