virtnet_rq_dma
struct virtnet_rq_dma *dma;
if (!alloc_frag->offset && len + room + sizeof(struct virtnet_rq_dma) > alloc_frag->size)
len -= sizeof(struct virtnet_rq_dma);
struct virtnet_rq_dma *last_dma;
struct virtnet_rq_dma *dma;
struct virtnet_rq_dma *dma;