1 files changed, 35 insertions, 63 deletions

diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c
index 4d238d0e484b..42fe821f8d58 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c
@@ -306,47 +306,42 @@ out:
 
 /**
  * pvrdma_alloc_ucontext - allocate ucontext
- * @ibdev: the IB device
+ * @uctx: the uverbs countext
  * @udata: user data
  *
- * @return: the ib_ucontext pointer on success, otherwise errno.
+ * @return:  zero on success, otherwise errno.
  */
-struct ib_ucontext *pvrdma_alloc_ucontext(struct ib_device *ibdev,
-					  struct ib_udata *udata)
+int pvrdma_alloc_ucontext(struct ib_ucontext *uctx, struct ib_udata *udata)
 {
+	struct ib_device *ibdev = uctx->device;
 	struct pvrdma_dev *vdev = to_vdev(ibdev);
-	struct pvrdma_ucontext *context;
-	union pvrdma_cmd_req req;
-	union pvrdma_cmd_resp rsp;
+	struct pvrdma_ucontext *context = to_vucontext(uctx);
+	union pvrdma_cmd_req req = {};
+	union pvrdma_cmd_resp rsp = {};
 	struct pvrdma_cmd_create_uc *cmd = &req.create_uc;
 	struct pvrdma_cmd_create_uc_resp *resp = &rsp.create_uc_resp;
-	struct pvrdma_alloc_ucontext_resp uresp = {0};
+	struct pvrdma_alloc_ucontext_resp uresp = {};
 	int ret;
-	void *ptr;
 
 	if (!vdev->ib_active)
-		return ERR_PTR(-EAGAIN);
-
-	context = kmalloc(sizeof(*context), GFP_KERNEL);
-	if (!context)
-		return ERR_PTR(-ENOMEM);
+		return -EAGAIN;
 
 	context->dev = vdev;
 	ret = pvrdma_uar_alloc(vdev, &context->uar);
-	if (ret) {
-		kfree(context);
-		return ERR_PTR(-ENOMEM);
-	}
+	if (ret)
+		return -ENOMEM;
 
 	/* get ctx_handle from host */
-	memset(cmd, 0, sizeof(*cmd));
-	cmd->pfn = context->uar.pfn;
+	if (vdev->dsr_version < PVRDMA_PPN64_VERSION)
+		cmd->pfn = context->uar.pfn;
+	else
+		cmd->pfn64 = context->uar.pfn;
+
 	cmd->hdr.cmd = PVRDMA_CMD_CREATE_UC;
 	ret = pvrdma_cmd_post(vdev, &req, &rsp, PVRDMA_CMD_CREATE_UC_RESP);
 	if (ret < 0) {
 		dev_warn(&vdev->pdev->dev,
 			 "could not create ucontext, error: %d\n", ret);
-		ptr = ERR_PTR(ret);
 		goto err;
 	}
 
@@ -357,33 +352,28 @@ struct ib_ucontext *pvrdma_alloc_ucontext(struct ib_device *ibdev,
 	ret = ib_copy_to_udata(udata, &uresp, sizeof(uresp));
 	if (ret) {
 		pvrdma_uar_free(vdev, &context->uar);
-		context->ibucontext.device = ibdev;
 		pvrdma_dealloc_ucontext(&context->ibucontext);
-		return ERR_PTR(-EFAULT);
+		return -EFAULT;
 	}
 
-	return &context->ibucontext;
+	return 0;
 
 err:
 	pvrdma_uar_free(vdev, &context->uar);
-	kfree(context);
-	return ptr;
+	return ret;
 }
 
 /**
  * pvrdma_dealloc_ucontext - deallocate ucontext
  * @ibcontext: the ucontext
- *
- * @return: 0 on success, otherwise errno.
  */
-int pvrdma_dealloc_ucontext(struct ib_ucontext *ibcontext)
+void pvrdma_dealloc_ucontext(struct ib_ucontext *ibcontext)
 {
 	struct pvrdma_ucontext *context = to_vucontext(ibcontext);
-	union pvrdma_cmd_req req;
+	union pvrdma_cmd_req req = {};
 	struct pvrdma_cmd_destroy_uc *cmd = &req.destroy_uc;
 	int ret;
 
-	memset(cmd, 0, sizeof(*cmd));
 	cmd->hdr.cmd = PVRDMA_CMD_DESTROY_UC;
 	cmd->ctx_handle = context->ctx_handle;
 
@@ -394,9 +384,6 @@ int pvrdma_dealloc_ucontext(struct ib_ucontext *ibcontext)
 
 	/* Free the UAR even if the device command failed */
 	pvrdma_uar_free(to_vdev(ibcontext->device), &context->uar);
-	kfree(context);
-
-	return ret;
 }
 
 /**
@@ -433,37 +420,29 @@ int pvrdma_mmap(struct ib_ucontext *ibcontext, struct vm_area_struct *vma)
 
 /**
  * pvrdma_alloc_pd - allocate protection domain
- * @ibdev: the IB device
+ * @ibpd: PD pointer
  * @context: user context
  * @udata: user data
  *
  * @return: the ib_pd protection domain pointer on success, otherwise errno.
  */
-struct ib_pd *pvrdma_alloc_pd(struct ib_device *ibdev,
-			      struct ib_ucontext *context,
-			      struct ib_udata *udata)
+int pvrdma_alloc_pd(struct ib_pd *ibpd, struct ib_ucontext *context,
+		    struct ib_udata *udata)
 {
-	struct pvrdma_pd *pd;
+	struct ib_device *ibdev = ibpd->device;
+	struct pvrdma_pd *pd = to_vpd(ibpd);
 	struct pvrdma_dev *dev = to_vdev(ibdev);
-	union pvrdma_cmd_req req;
-	union pvrdma_cmd_resp rsp;
+	union pvrdma_cmd_req req = {};
+	union pvrdma_cmd_resp rsp = {};
 	struct pvrdma_cmd_create_pd *cmd = &req.create_pd;
 	struct pvrdma_cmd_create_pd_resp *resp = &rsp.create_pd_resp;
 	struct pvrdma_alloc_pd_resp pd_resp = {0};
 	int ret;
-	void *ptr;
 
 	/* Check allowed max pds */
 	if (!atomic_add_unless(&dev->num_pds, 1, dev->dsr->caps.max_pd))
-		return ERR_PTR(-ENOMEM);
-
-	pd = kmalloc(sizeof(*pd), GFP_KERNEL);
-	if (!pd) {
-		ptr = ERR_PTR(-ENOMEM);
-		goto err;
-	}
+		return -ENOMEM;
 
-	memset(cmd, 0, sizeof(*cmd));
 	cmd->hdr.cmd = PVRDMA_CMD_CREATE_PD;
 	cmd->ctx_handle = (context) ? to_vucontext(context)->ctx_handle : 0;
 	ret = pvrdma_cmd_post(dev, &req, &rsp, PVRDMA_CMD_CREATE_PD_RESP);
@@ -471,8 +450,7 @@ struct ib_pd *pvrdma_alloc_pd(struct ib_device *ibdev,
 		dev_warn(&dev->pdev->dev,
 			 "failed to allocate protection domain, error: %d\n",
 			 ret);
-		ptr = ERR_PTR(ret);
-		goto freepd;
+		goto err;
 	}
 
 	pd->privileged = !context;
@@ -485,18 +463,16 @@ struct ib_pd *pvrdma_alloc_pd(struct ib_device *ibdev,
 			dev_warn(&dev->pdev->dev,
 				 "failed to copy back protection domain\n");
 			pvrdma_dealloc_pd(&pd->ibpd);
-			return ERR_PTR(-EFAULT);
+			return -EFAULT;
 		}
 	}
 
 	/* u32 pd handle */
-	return &pd->ibpd;
+	return 0;
 
-freepd:
-	kfree(pd);
 err:
 	atomic_dec(&dev->num_pds);
-	return ptr;
+	return ret;
 }
 
 /**
@@ -505,14 +481,13 @@ err:
  *
  * @return: 0 on success, otherwise errno.
  */
-int pvrdma_dealloc_pd(struct ib_pd *pd)
+void pvrdma_dealloc_pd(struct ib_pd *pd)
 {
 	struct pvrdma_dev *dev = to_vdev(pd->device);
-	union pvrdma_cmd_req req;
+	union pvrdma_cmd_req req = {};
 	struct pvrdma_cmd_destroy_pd *cmd = &req.destroy_pd;
 	int ret;
 
-	memset(cmd, 0, sizeof(*cmd));
 	cmd->hdr.cmd = PVRDMA_CMD_DESTROY_PD;
 	cmd->pd_handle = to_vpd(pd)->pd_handle;
 
@@ -522,10 +497,7 @@ int pvrdma_dealloc_pd(struct ib_pd *pd)
 			 "could not dealloc protection domain, error: %d\n",
 			 ret);
 
-	kfree(to_vpd(pd));
 	atomic_dec(&dev->num_pds);
-
-	return 0;
 }
 
 /**