AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

RDMA: Restore ability to fail on SRQ destroy

Browse Source 
In similar way to other IB objects, restore the ability to return error on
SRQ destroy. Strictly speaking, this change is not necessary, and provided
here to ensure a symmetrical interface like other destroy functions.

Fixes: 68e326dea1 ("RDMA: Handle SRQ allocations by IB/core")
Link: https://lore.kernel.org/r/20200907120921.476363-5-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Leon Romanovsky 2020-09-07 15:09:16 +03:00 committed by Jason Gunthorpe
parent fd89099d63
commit 119181d1d4
27 changed files with 58 additions and 47 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/infiniband/core/verbs.c
View File

@ -1068,10 +1068,14 @@ EXPORT_SYMBOL(ib_query_srq);
int ib_destroy_srq_user(struct ib_srq *srq, struct ib_udata *udata)
{
int ret;
if (atomic_read(&srq->usecnt))
return -EBUSY;
srq->device->ops.destroy_srq(srq, udata);
ret = srq->device->ops.destroy_srq(srq, udata);
if (ret)
return ret;
atomic_dec(&srq->pd->usecnt);
if (srq->srq_type == IB_SRQT_XRC)
@ -1080,7 +1084,7 @@ int ib_destroy_srq_user(struct ib_srq *srq, struct ib_udata *udata)
atomic_dec(&srq->ext.cq->usecnt);
kfree(srq);
return 0;
return ret;
}
EXPORT_SYMBOL(ib_destroy_srq_user);

3
drivers/infiniband/hw/bnxt_re/ib_verbs.c
View File

@ -1570,7 +1570,7 @@ static enum ib_mtu __to_ib_mtu(u32 mtu)
}
/* Shared Receive Queues */
void bnxt_re_destroy_srq(struct ib_srq *ib_srq, struct ib_udata *udata)
int bnxt_re_destroy_srq(struct ib_srq *ib_srq, struct ib_udata *udata)
{
struct bnxt_re_srq *srq = container_of(ib_srq, struct bnxt_re_srq,
ib_srq);
@ -1585,6 +1585,7 @@ void bnxt_re_destroy_srq(struct ib_srq *ib_srq, struct ib_udata *udata)
atomic_dec(&rdev->srq_count);
if (nq)
nq->budget--;
return 0;
}
static int bnxt_re_init_user_srq(struct bnxt_re_dev *rdev,

2
drivers/infiniband/hw/bnxt_re/ib_verbs.h
View File

@ -176,7 +176,7 @@ int bnxt_re_modify_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr,
enum ib_srq_attr_mask srq_attr_mask,
struct ib_udata *udata);
int bnxt_re_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
void bnxt_re_destroy_srq(struct ib_srq *srq, struct ib_udata *udata);
int bnxt_re_destroy_srq(struct ib_srq *srq, struct ib_udata *udata);
int bnxt_re_post_srq_recv(struct ib_srq *srq, const struct ib_recv_wr *recv_wr,
const struct ib_recv_wr **bad_recv_wr);
struct ib_qp *bnxt_re_create_qp(struct ib_pd *pd,

2
drivers/infiniband/hw/cxgb4/iw_cxgb4.h
View File

@ -999,7 +999,7 @@ int c4iw_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags);
int c4iw_modify_srq(struct ib_srq *ib_srq, struct ib_srq_attr *attr,
enum ib_srq_attr_mask srq_attr_mask,
struct ib_udata *udata);
void c4iw_destroy_srq(struct ib_srq *ib_srq, struct ib_udata *udata);
int c4iw_destroy_srq(struct ib_srq *ib_srq, struct ib_udata *udata);
int c4iw_create_srq(struct ib_srq *srq, struct ib_srq_init_attr *attrs,
struct ib_udata *udata);
int c4iw_destroy_qp(struct ib_qp *ib_qp, struct ib_udata *udata);

3
drivers/infiniband/hw/cxgb4/qp.c
View File

@ -2797,7 +2797,7 @@ int c4iw_create_srq(struct ib_srq *ib_srq, struct ib_srq_init_attr *attrs,
return ret;
}
void c4iw_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata)
int c4iw_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata)
{
struct c4iw_dev *rhp;
struct c4iw_srq *srq;
@ -2813,4 +2813,5 @@ void c4iw_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata)
srq->wr_waitp);
c4iw_free_srq_idx(&rhp->rdev, srq->idx);
c4iw_put_wr_wait(srq->wr_waitp);
return 0;
}

2
drivers/infiniband/hw/hns/hns_roce_device.h
View File

@ -1224,7 +1224,7 @@ int hns_roce_create_srq(struct ib_srq *srq,
int hns_roce_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *srq_attr,
enum ib_srq_attr_mask srq_attr_mask,
struct ib_udata *udata);
void hns_roce_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata);
int hns_roce_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata);
struct ib_qp *hns_roce_create_qp(struct ib_pd *ib_pd,
struct ib_qp_init_attr *init_attr,

3
drivers/infiniband/hw/hns/hns_roce_srq.c
View File

@ -363,7 +363,7 @@ int hns_roce_create_srq(struct ib_srq *ib_srq,
return ret;
}
void hns_roce_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata)
int hns_roce_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata)
{
struct hns_roce_dev *hr_dev = to_hr_dev(ibsrq->device);
struct hns_roce_srq *srq = to_hr_srq(ibsrq);
@ -372,6 +372,7 @@ void hns_roce_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata)
free_srq_idx(hr_dev, srq);
free_srq_wrid(srq);
free_srq_buf(hr_dev, srq);
return 0;
}
int hns_roce_init_srq_table(struct hns_roce_dev *hr_dev)

2
drivers/infiniband/hw/mlx4/mlx4_ib.h
View File

@ -763,7 +763,7 @@ int mlx4_ib_create_srq(struct ib_srq *srq, struct ib_srq_init_attr *init_attr,
int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
int mlx4_ib_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
void mlx4_ib_destroy_srq(struct ib_srq *srq, struct ib_udata *udata);
int mlx4_ib_destroy_srq(struct ib_srq *srq, struct ib_udata *udata);
void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index);
int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, const struct ib_recv_wr *wr,
const struct ib_recv_wr **bad_wr);

3
drivers/infiniband/hw/mlx4/srq.c
View File

@ -260,7 +260,7 @@ int mlx4_ib_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *srq_attr)
return 0;
}
void mlx4_ib_destroy_srq(struct ib_srq *srq, struct ib_udata *udata)
int mlx4_ib_destroy_srq(struct ib_srq *srq, struct ib_udata *udata)
{
struct mlx4_ib_dev *dev = to_mdev(srq->device);
struct mlx4_ib_srq *msrq = to_msrq(srq);
@ -282,6 +282,7 @@ void mlx4_ib_destroy_srq(struct ib_srq *srq, struct ib_udata *udata)
mlx4_db_free(dev->dev, &msrq->db);
}
ib_umem_release(msrq->umem);
return 0;
}
void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index)

2
drivers/infiniband/hw/mlx5/mlx5_ib.h
View File

@ -1128,7 +1128,7 @@ int mlx5_ib_create_srq(struct ib_srq *srq, struct ib_srq_init_attr *init_attr,
int mlx5_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
int mlx5_ib_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *srq_attr);
void mlx5_ib_destroy_srq(struct ib_srq *srq, struct ib_udata *udata);
int mlx5_ib_destroy_srq(struct ib_srq *srq, struct ib_udata *udata);
int mlx5_ib_post_srq_recv(struct ib_srq *ibsrq, const struct ib_recv_wr *wr,
const struct ib_recv_wr **bad_wr);
int mlx5_ib_enable_lb(struct mlx5_ib_dev *dev, bool td, bool qp);

21
drivers/infiniband/hw/mlx5/srq.c
View File

@ -389,24 +389,21 @@ int mlx5_ib_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *srq_attr)
return ret;
}
void mlx5_ib_destroy_srq(struct ib_srq *srq, struct ib_udata *udata)
int mlx5_ib_destroy_srq(struct ib_srq *srq, struct ib_udata *udata)
{
struct mlx5_ib_dev *dev = to_mdev(srq->device);
struct mlx5_ib_srq *msrq = to_msrq(srq);
int ret;
mlx5_cmd_destroy_srq(dev, &msrq->msrq);
ret = mlx5_cmd_destroy_srq(dev, &msrq->msrq);
if (ret)
return ret;
if (srq->uobject) {
mlx5_ib_db_unmap_user(
rdma_udata_to_drv_context(
udata,
struct mlx5_ib_ucontext,
ibucontext),
&msrq->db);
ib_umem_release(msrq->umem);
} else {
if (udata)
destroy_srq_user(srq->pd, msrq, udata);
else
destroy_srq_kernel(dev, msrq);
}
return 0;
}
void mlx5_ib_free_srq_wqe(struct mlx5_ib_srq *srq, int wqe_index)

2
drivers/infiniband/hw/mlx5/srq.h
View File

@ -56,7 +56,7 @@ struct mlx5_srq_table {
int mlx5_cmd_create_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
struct mlx5_srq_attr *in);
void mlx5_cmd_destroy_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq);
int mlx5_cmd_destroy_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq);
int mlx5_cmd_query_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
struct mlx5_srq_attr *out);
int mlx5_cmd_arm_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,

7
drivers/infiniband/hw/mlx5/srq_cmd.c
View File

@ -590,7 +590,7 @@ int mlx5_cmd_create_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
return err;
}
void mlx5_cmd_destroy_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq)
int mlx5_cmd_destroy_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq)
{
struct mlx5_srq_table *table = &dev->srq_table;
struct mlx5_core_srq *tmp;
@ -599,7 +599,7 @@ void mlx5_cmd_destroy_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq)
/* Delete entry, but leave index occupied */
tmp = xa_cmpxchg_irq(&table->array, srq->srqn, srq, XA_ZERO_ENTRY, 0);
if (WARN_ON(tmp != srq))
return;
return xa_err(tmp) ?: -EINVAL;
err = destroy_srq_split(dev, srq);
if (err) {
@ -609,12 +609,13 @@ void mlx5_cmd_destroy_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq)
* entry and it can't fail at this stage.
*/
xa_cmpxchg_irq(&table->array, srq->srqn, XA_ZERO_ENTRY, srq, 0);
return;
return err;
}
xa_erase_irq(&table->array, srq->srqn);
mlx5_core_res_put(&srq->common);
wait_for_completion(&srq->common.free);
return 0;
}
int mlx5_cmd_query_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,

3
drivers/infiniband/hw/mthca/mthca_provider.c
View File

@ -442,7 +442,7 @@ static int mthca_create_srq(struct ib_srq *ibsrq,
return 0;
}
static void mthca_destroy_srq(struct ib_srq *srq, struct ib_udata *udata)
static int mthca_destroy_srq(struct ib_srq *srq, struct ib_udata *udata)
{
if (udata) {
struct mthca_ucontext *context =
@ -456,6 +456,7 @@ static void mthca_destroy_srq(struct ib_srq *srq, struct ib_udata *udata)
}
mthca_free_srq(to_mdev(srq->device), to_msrq(srq));
return 0;
}
static struct ib_qp *mthca_create_qp(struct ib_pd *pd,

3
drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
View File

@ -1858,7 +1858,7 @@ int ocrdma_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *srq_attr)
return status;
}
void ocrdma_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata)
int ocrdma_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata)
{
struct ocrdma_srq *srq;
struct ocrdma_dev *dev = get_ocrdma_dev(ibsrq->device);
@ -1873,6 +1873,7 @@ void ocrdma_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata)
kfree(srq->idx_bit_fields);
kfree(srq->rqe_wr_id_tbl);
return 0;
}
/* unprivileged verbs and their support functions. */

2
drivers/infiniband/hw/ocrdma/ocrdma_verbs.h
View File

@ -92,7 +92,7 @@ int ocrdma_create_srq(struct ib_srq *srq, struct ib_srq_init_attr *attr,
int ocrdma_modify_srq(struct ib_srq *, struct ib_srq_attr *,
enum ib_srq_attr_mask, struct ib_udata *);
int ocrdma_query_srq(struct ib_srq *, struct ib_srq_attr *);
void ocrdma_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata);
int ocrdma_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata);
int ocrdma_post_srq_recv(struct ib_srq *, const struct ib_recv_wr *,
const struct ib_recv_wr **bad_recv_wr);

3
drivers/infiniband/hw/qedr/verbs.c
View File

@ -1592,7 +1592,7 @@ int qedr_create_srq(struct ib_srq *ibsrq, struct ib_srq_init_attr *init_attr,
return -EFAULT;
}
void qedr_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata)
int qedr_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata)
{
struct qed_rdma_destroy_srq_in_params in_params = {};
struct qedr_dev *dev = get_qedr_dev(ibsrq->device);
@ -1610,6 +1610,7 @@ void qedr_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata)
DP_DEBUG(dev, QEDR_MSG_SRQ,
"destroy srq: destroyed srq with srq_id=0x%0x\n",
srq->srq_id);
return 0;
}
int qedr_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,

2
drivers/infiniband/hw/qedr/verbs.h
View File

@ -67,7 +67,7 @@ int qedr_create_srq(struct ib_srq *ibsrq, struct ib_srq_init_attr *attr,
int qedr_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
int qedr_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr);
void qedr_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata);
int qedr_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata);
int qedr_post_srq_recv(struct ib_srq *ibsrq, const struct ib_recv_wr *wr,
const struct ib_recv_wr **bad_recv_wr);
int qedr_create_ah(struct ib_ah *ibah, struct rdma_ah_init_attr *init_attr,

3
drivers/infiniband/hw/vmw_pvrdma/pvrdma_srq.c
View File

@ -240,7 +240,7 @@ static void pvrdma_free_srq(struct pvrdma_dev *dev, struct pvrdma_srq *srq)
*
* @return: 0 for success.
*/
void pvrdma_destroy_srq(struct ib_srq *srq, struct ib_udata *udata)
int pvrdma_destroy_srq(struct ib_srq *srq, struct ib_udata *udata)
{
struct pvrdma_srq *vsrq = to_vsrq(srq);
union pvrdma_cmd_req req;
@ -259,6 +259,7 @@ void pvrdma_destroy_srq(struct ib_srq *srq, struct ib_udata *udata)
ret);
pvrdma_free_srq(dev, vsrq);
return 0;
}
/**

2
drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h
View File

@ -423,7 +423,7 @@ int pvrdma_create_srq(struct ib_srq *srq, struct ib_srq_init_attr *init_attr,
int pvrdma_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
int pvrdma_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
void pvrdma_destroy_srq(struct ib_srq *srq, struct ib_udata *udata);
int pvrdma_destroy_srq(struct ib_srq *srq, struct ib_udata *udata);
struct ib_qp *pvrdma_create_qp(struct ib_pd *pd,
struct ib_qp_init_attr *init_attr,

3
drivers/infiniband/sw/rdmavt/srq.c
View File

@ -332,7 +332,7 @@ int rvt_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr)
* @ibsrq: srq object to destroy
*
*/
void rvt_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata)
int rvt_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata)
{
struct rvt_srq *srq = ibsrq_to_rvtsrq(ibsrq);
struct rvt_dev_info *dev = ib_to_rvt(ibsrq->device);
@ -343,4 +343,5 @@ void rvt_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata)
if (srq->ip)
kref_put(&srq->ip->ref, rvt_release_mmap_info);
kvfree(srq->rq.kwq);
return 0;
}

2
drivers/infiniband/sw/rdmavt/srq.h
View File

@ -56,6 +56,6 @@ int rvt_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
enum ib_srq_attr_mask attr_mask,
struct ib_udata *udata);
int rvt_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr);
void rvt_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata);
int rvt_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata);
#endif /* DEF_RVTSRQ_H */

3
drivers/infiniband/sw/rxe/rxe_verbs.c
View File

@ -340,7 +340,7 @@ static int rxe_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr)
return 0;
}
static void rxe_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata)
static int rxe_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata)
{
struct rxe_srq *srq = to_rsrq(ibsrq);
@ -349,6 +349,7 @@ static void rxe_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata)
rxe_drop_ref(srq->pd);
rxe_drop_ref(srq);
return 0;
}
static int rxe_post_srq_recv(struct ib_srq *ibsrq, const struct ib_recv_wr *wr,

3
drivers/infiniband/sw/siw/siw_verbs.c
View File

@ -1691,7 +1691,7 @@ int siw_query_srq(struct ib_srq *base_srq, struct ib_srq_attr *attrs)
* QP anymore - the code trusts the RDMA core environment to keep track
* of QP references.
*/
void siw_destroy_srq(struct ib_srq *base_srq, struct ib_udata *udata)
int siw_destroy_srq(struct ib_srq *base_srq, struct ib_udata *udata)
{
struct siw_srq *srq = to_siw_srq(base_srq);
struct siw_device *sdev = to_siw_dev(base_srq->device);
@ -1703,6 +1703,7 @@ void siw_destroy_srq(struct ib_srq *base_srq, struct ib_udata *udata)
rdma_user_mmap_entry_remove(srq->srq_entry);
vfree(srq->recvq);
atomic_dec(&sdev->num_srq);
return 0;
}
/*

2
drivers/infiniband/sw/siw/siw_verbs.h
View File

@ -78,7 +78,7 @@ int siw_create_srq(struct ib_srq *base_srq, struct ib_srq_init_attr *attr,
int siw_modify_srq(struct ib_srq *base_srq, struct ib_srq_attr *attr,
enum ib_srq_attr_mask mask, struct ib_udata *udata);
int siw_query_srq(struct ib_srq *base_srq, struct ib_srq_attr *attr);
void siw_destroy_srq(struct ib_srq *base_srq, struct ib_udata *udata);
int siw_destroy_srq(struct ib_srq *base_srq, struct ib_udata *udata);
int siw_post_srq_recv(struct ib_srq *base_srq, const struct ib_recv_wr *wr,
const struct ib_recv_wr **bad_wr);
int siw_mmap(struct ib_ucontext *ctx, struct vm_area_struct *vma);

6
drivers/infiniband/ulp/ipoib/ipoib_cm.c
View File

@ -1647,17 +1647,13 @@ int ipoib_cm_dev_init(struct net_device *dev)
void ipoib_cm_dev_cleanup(struct net_device *dev)
{
struct ipoib_dev_priv *priv = ipoib_priv(dev);
int ret;
if (!priv->cm.srq)
return;
ipoib_dbg(priv, "Cleanup ipoib connected mode.\n");
ret = ib_destroy_srq(priv->cm.srq);
if (ret)
ipoib_warn(priv, "ib_destroy_srq failed: %d\n", ret);
ib_destroy_srq(priv->cm.srq);
priv->cm.srq = NULL;
if (!priv->cm.srq_ring)
return;

8
include/rdma/ib_verbs.h
View File

@ -2411,7 +2411,7 @@ struct ib_device_ops {
enum ib_srq_attr_mask srq_attr_mask,
struct ib_udata *udata);
int (*query_srq)(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
void (*destroy_srq)(struct ib_srq *srq, struct ib_udata *udata);
int (*destroy_srq)(struct ib_srq *srq, struct ib_udata *udata);
struct ib_qp *(*create_qp)(struct ib_pd *pd,
struct ib_qp_init_attr *qp_init_attr,
struct ib_udata *udata);
@ -3654,9 +3654,11 @@ int ib_destroy_srq_user(struct ib_srq *srq, struct ib_udata *udata);
*
* NOTE: for user srq use ib_destroy_srq_user with valid udata!
*/
static inline int ib_destroy_srq(struct ib_srq *srq)
static inline void ib_destroy_srq(struct ib_srq *srq)
{
return ib_destroy_srq_user(srq, NULL);
int ret = ib_destroy_srq_user(srq, NULL);
WARN_ONCE(ret, "Destroy of kernel SRQ shouldn't fail");
}
/**