rdma_query_ah
if (rdma_query_ah(wr->send_buf.ah, &attr))
rdma_query_ah(wr->ah, &attr);
if (rdma_query_ah(mad_send_wr->send_buf.ah, &ah_attr))
if ((rdma_query_ah(query->sm_ah->ah, &ah_attr) < 0) ||
EXPORT_SYMBOL(rdma_query_ah);
rdma_query_ah(dev->sm_ah[ctx->port - 1], &ah_attr);
int rdma_query_ah(struct ib_ah *ah, struct rdma_ah_attr *ah_attr);