From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2AF7EC2D0C2 for ; Fri, 3 Jan 2020 17:10:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F044D20866 for ; Fri, 3 Jan 2020 17:10:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727988AbgACRKh (ORCPT ); Fri, 3 Jan 2020 12:10:37 -0500 Received: from ale.deltatee.com ([207.54.116.67]:49104 "EHLO ale.deltatee.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727952AbgACRKh (ORCPT ); Fri, 3 Jan 2020 12:10:37 -0500 Received: from cgy1-donard.priv.deltatee.com ([172.16.1.31]) by ale.deltatee.com with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1inQT3-0000cz-S1; Fri, 03 Jan 2020 10:10:34 -0700 Received: from gunthorp by cgy1-donard.priv.deltatee.com with local (Exim 4.92) (envelope-from ) id 1inQT2-0006ii-5T; Fri, 03 Jan 2020 10:10:32 -0700 From: Logan Gunthorpe To: Greg Kroah-Hartman , Sasha Levin Cc: Logan Gunthorpe , Doug Meyer , Bjorn Helgaas , stable@vger.kernel.org, Kelvin Cao Date: Fri, 3 Jan 2020 10:10:29 -0700 Message-Id: <20200103171029.25790-1-logang@deltatee.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 172.16.1.31 X-SA-Exim-Rcpt-To: gregkh@linuxfoundation.org, sashal@kernel.org, logang@deltatee.com, dmeyer@gigaio.com, bhelgaas@google.com, stable@vger.kernel.org, Kelvin.Cao@microchip.com X-SA-Exim-Mail-From: gunthorp@deltatee.com Subject: [PATCH v2] PCI/switchtec: Read all 64 bits of part_event_bitmap X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on ale.deltatee.com) Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org commit 6acdf7e19b37cb3a9258603d0eab315079c19c5e upstream. The part_event_bitmap register is 64 bits wide, so read it with ioread64() instead of the 32-bit ioread32(). Fixes: 52eabba5bcdb ("switchtec: Add IOCTLs to the Switchtec driver") Link: https://lore.kernel.org/r/20190910195833.3891-1-logang@deltatee.com Reported-by: Doug Meyer Signed-off-by: Logan Gunthorpe Cc: Bjorn Helgaas Cc: stable@vger.kernel.org # v4.12+ Cc: Kelvin Cao Cc: Greg Kroah-Hartman --- drivers/pci/switch/switchtec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) v2 of this patch adds the missing header that provides readq() on non-64bit architectures. diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c index e3aefdafae89..0941555b84a5 100644 --- a/drivers/pci/switch/switchtec.c +++ b/drivers/pci/switch/switchtec.c @@ -23,7 +23,7 @@ #include #include #include - +#include #include MODULE_DESCRIPTION("Microsemi Switchtec(tm) PCIe Management Driver"); @@ -898,7 +898,7 @@ static int ioctl_event_summary(struct switchtec_dev *stdev, u32 reg; s.global = ioread32(&stdev->mmio_sw_event->global_summary); - s.part_bitmap = ioread32(&stdev->mmio_sw_event->part_event_bitmap); + s.part_bitmap = readq(&stdev->mmio_sw_event->part_event_bitmap); s.local_part = ioread32(&stdev->mmio_part_cfg->part_event_summary); for (i = 0; i < stdev->partition_count; i++) { -- 2.20.1