rdmab_addr
sge->addr = rdmab_addr(rb);
sge->addr = rdmab_addr(rb);
if (ib_dma_mapping_error(device, rdmab_addr(rb))) {
trace_xprtrdma_dma_maperr(rdmab_addr(rb));
ib_dma_unmap_single(rb->rg_device, rdmab_addr(rb), rdmab_length(rb),
rdmab_addr(rep->rr_rdmabuf),