RDMA/core: Remove unnecessary statements

The rdma_zalloc_drv_obj() in __ib_alloc_pd() would zero pd, it unnecessary
add NULL to the object in struct pd.

The uverbs_free_pd() already return busy if pd->usecnt is true, there is
no need to add a warning.

Link: https://lore.kernel.org/r/20220223074901.201506-1-yajun.deng@linux.dev
Signed-off-by: Yajun Deng <yajun.deng@linux.dev>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index e821dc94a43ed8f07aeeb379458becf9ba95f057..a9819c40a140676090851d4f7c82a17baac0dd05 100644 (file)
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -268,9 +268,6 @@ struct ib_pd *__ib_alloc_pd(struct ib_device *device, unsigned int flags,
                return ERR_PTR(-ENOMEM);
 
        pd->device = device;
-       pd->uobject = NULL;
-       pd->__internal_mr = NULL;
-       atomic_set(&pd->usecnt, 0);
        pd->flags = flags;
 
        rdma_restrack_new(&pd->res, RDMA_RESTRACK_PD);
@@ -341,11 +338,6 @@ int ib_dealloc_pd_user(struct ib_pd *pd, struct ib_udata *udata)
                pd->__internal_mr = NULL;
        }
 
-       /* uverbs manipulates usecnt with proper locking, while the kabi
-        * requires the caller to guarantee we can't race here.
-        */
-       WARN_ON(atomic_read(&pd->usecnt));
-
        ret = pd->device->ops.dealloc_pd(pd, udata);
        if (ret)
                return ret;