在 2018/11/30 8:06, Jason Gunthorpe 写道: > On Sat, Nov 24, 2018 at 04:49:20PM +0800, Lijun Ou wrote: > >> diff --git a/drivers/infiniband/hw/hns/hns_roce_srq.c b/drivers/infiniband/hw/hns/hns_roce_srq.c >> new file mode 100644 >> index 0000000..d8a8613 >> +++ b/drivers/infiniband/hw/hns/hns_roce_srq.c >> @@ -0,0 +1,26 @@ >> +// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB >> +/* >> + * Copyright (c) 2018 Hisilicon Limited. >> + */ >> + >> +#include <rdma/ib_umem.h> >> +#include <rdma/hns-abi.h> >> +#include "hns_roce_device.h" >> +#include "hns_roce_cmd.h" >> +#include "hns_roce_hem.h" >> + >> +int hns_roce_init_srq_table(struct hns_roce_dev *hr_dev) >> +{ >> + struct hns_roce_srq_table *srq_table = &hr_dev->srq_table; >> + >> + xa_init(&srq_table->xa); > Is a call to xa_destroy missing? > > Jason > No. It is not needed. I have analyzed the usage again according to the extremely example