IORING_ZCRX_AREA_DMABUF
e->area_flags = IORING_ZCRX_AREA_DMABUF;
if (area_reg->flags & IORING_ZCRX_AREA_DMABUF)
#define IO_ZCRX_AREA_SUPPORTED_FLAGS (IORING_ZCRX_AREA_DMABUF)
ifq->kern_readable = !(area.flags & IORING_ZCRX_AREA_DMABUF);