On Fri, Feb 25, 2022 at 07:25:57PM +0800, Wenpeng Liang wrote: > @@ -282,7 +280,7 @@ struct ib_mr *hns_roce_rereg_user_mr(struct ib_mr *ibmr, int flags, u64 start, > > mailbox = hns_roce_alloc_cmd_mailbox(hr_dev); > if (IS_ERR(mailbox)) > - return ERR_CAST(mailbox); > + return ERR_PTR(mailbox); This doesn't compile, it should stay as ERR_CAST, right? Jason