RDMA/rtrs: Clean up rtrs_rdma_dev_pd_ops

Let's remove them since the three members are not used.
Acked-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Signed-off-by: Guoqing Jiang <guoqing.jiang@linux.dev>
Link: https://lore.kernel.org/r/20221117101945.6317-7-guoqing.jiang@linux.devSigned-off-by: Leon Romanovsky <leon@kernel.org>

drivers/infiniband/ulp/rtrs/rtrs-pri.h

@@ -68,10 +68,7 @@ enum {
 struct rtrs_ib_dev;
 
 struct rtrs_rdma_dev_pd_ops {
-	struct rtrs_ib_dev *(*alloc)(void);
-	void (*free)(struct rtrs_ib_dev *dev);
 	int (*init)(struct rtrs_ib_dev *dev);
-	void (*deinit)(struct rtrs_ib_dev *dev);
 };
 
 struct rtrs_rdma_dev_pd {

drivers/infiniband/ulp/rtrs/rtrs.c

@@ -557,7 +557,6 @@ EXPORT_SYMBOL(rtrs_addr_to_sockaddr);
 void rtrs_rdma_dev_pd_init(enum ib_pd_flags pd_flags,
 			    struct rtrs_rdma_dev_pd *pool)
 {
-	WARN_ON(pool->ops && (!pool->ops->alloc ^ !pool->ops->free));
 	INIT_LIST_HEAD(&pool->list);
 	mutex_init(&pool->mutex);
 	pool->pd_flags = pd_flags;
@@ -583,15 +582,8 @@ static void dev_free(struct kref *ref)
 	list_del(&dev->entry);
 	mutex_unlock(&pool->mutex);
 
-	if (pool->ops && pool->ops->deinit)
-		pool->ops->deinit(dev);
-
 	ib_dealloc_pd(dev->ib_pd);
-
-	if (pool->ops && pool->ops->free)
-		pool->ops->free(dev);
-	else
-		kfree(dev);
+	kfree(dev);
 }
 
 int rtrs_ib_dev_put(struct rtrs_ib_dev *dev)
@@ -618,11 +610,8 @@ rtrs_ib_dev_find_or_add(struct ib_device *ib_dev,
 			goto out_unlock;
 	}
 	mutex_unlock(&pool->mutex);
-	if (pool->ops && pool->ops->alloc)
-		dev = pool->ops->alloc();
-	else
-		dev = kzalloc(sizeof(*dev), GFP_KERNEL);
-	if (IS_ERR_OR_NULL(dev))
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (!dev)
 		goto out_err;
 
 	kref_init(&dev->ref);
@@ -644,10 +633,7 @@ rtrs_ib_dev_find_or_add(struct ib_device *ib_dev,
 out_free_pd:
 	ib_dealloc_pd(dev->ib_pd);
 out_free_dev:
-	if (pool->ops && pool->ops->free)
-		pool->ops->free(dev);
-	else
-		kfree(dev);
+	kfree(dev);
 out_err:
 	return NULL;
 }