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path: root/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c
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Diffstat (limited to 'drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c')
-rw-r--r--drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c34
1 files changed, 12 insertions, 22 deletions
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c
index 0682781f6555..38573fc0a9bf 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c
@@ -92,20 +92,19 @@ int pvrdma_req_notify_cq(struct ib_cq *ibcq,
/**
* pvrdma_create_cq - create completion queue
- * @ibdev: the device
+ * @ibcq: Allocated CQ
* @attr: completion queue attributes
* @udata: user data
*
- * @return: ib_cq completion queue pointer on success,
- * otherwise returns negative errno.
+ * @return: 0 on success
*/
-struct ib_cq *pvrdma_create_cq(struct ib_device *ibdev,
- const struct ib_cq_init_attr *attr,
- struct ib_udata *udata)
+int pvrdma_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
+ struct ib_udata *udata)
{
+ struct ib_device *ibdev = ibcq->device;
int entries = attr->cqe;
struct pvrdma_dev *dev = to_vdev(ibdev);
- struct pvrdma_cq *cq;
+ struct pvrdma_cq *cq = to_vcq(ibcq);
int ret;
int npages;
unsigned long flags;
@@ -113,7 +112,7 @@ struct ib_cq *pvrdma_create_cq(struct ib_device *ibdev,
union pvrdma_cmd_resp rsp;
struct pvrdma_cmd_create_cq *cmd = &req.create_cq;
struct pvrdma_cmd_create_cq_resp *resp = &rsp.create_cq_resp;
- struct pvrdma_create_cq_resp cq_resp = {0};
+ struct pvrdma_create_cq_resp cq_resp = {};
struct pvrdma_create_cq ucmd;
struct pvrdma_ucontext *context = rdma_udata_to_drv_context(
udata, struct pvrdma_ucontext, ibucontext);
@@ -122,16 +121,10 @@ struct ib_cq *pvrdma_create_cq(struct ib_device *ibdev,
entries = roundup_pow_of_two(entries);
if (entries < 1 || entries > dev->dsr->caps.max_cqe)
- return ERR_PTR(-EINVAL);
+ return -EINVAL;
if (!atomic_add_unless(&dev->num_cqs, 1, dev->dsr->caps.max_cq))
- return ERR_PTR(-ENOMEM);
-
- cq = kzalloc(sizeof(*cq), GFP_KERNEL);
- if (!cq) {
- atomic_dec(&dev->num_cqs);
- return ERR_PTR(-ENOMEM);
- }
+ return -ENOMEM;
cq->ibcq.cqe = entries;
cq->is_kernel = !udata;
@@ -211,11 +204,11 @@ struct ib_cq *pvrdma_create_cq(struct ib_device *ibdev,
dev_warn(&dev->pdev->dev,
"failed to copy back udata\n");
pvrdma_destroy_cq(&cq->ibcq, udata);
- return ERR_PTR(-EINVAL);
+ return -EINVAL;
}
}
- return &cq->ibcq;
+ return 0;
err_page_dir:
pvrdma_page_dir_cleanup(dev, &cq->pdir);
@@ -224,9 +217,7 @@ err_umem:
ib_umem_release(cq->umem);
err_cq:
atomic_dec(&dev->num_cqs);
- kfree(cq);
-
- return ERR_PTR(ret);
+ return ret;
}
static void pvrdma_free_cq(struct pvrdma_dev *dev, struct pvrdma_cq *cq)
@@ -239,7 +230,6 @@ static void pvrdma_free_cq(struct pvrdma_dev *dev, struct pvrdma_cq *cq)
ib_umem_release(cq->umem);
pvrdma_page_dir_cleanup(dev, &cq->pdir);
- kfree(cq);
}
/**