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=-7.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_PASS,USER_AGENT_MUTT 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 4149FC43381 for ; Fri, 15 Mar 2019 15:50:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 14A1A21872 for ; Fri, 15 Mar 2019 15:50:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729370AbfCOPuV (ORCPT ); Fri, 15 Mar 2019 11:50:21 -0400 Received: from mga12.intel.com ([192.55.52.136]:34804 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727826AbfCOPuV (ORCPT ); Fri, 15 Mar 2019 11:50:21 -0400 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 15 Mar 2019 08:50:20 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,482,1544515200"; d="scan'208";a="125769204" Received: from lkp-server01.sh.intel.com (HELO lkp-server01) ([10.239.97.150]) by orsmga008.jf.intel.com with ESMTP; 15 Mar 2019 08:50:19 -0700 Received: from kbuild by lkp-server01 with local (Exim 4.89) (envelope-from ) id 1h4p6A-0008UY-GN; Fri, 15 Mar 2019 23:50:18 +0800 Date: Fri, 15 Mar 2019 23:49:56 +0800 From: kbuild test robot To: Andrey Smirnov Cc: kbuild-all@01.org, linux-kernel@vger.kernel.org, Lorenzo Pieralisi Subject: drivers/pci/controller/dwc/pcie-designware.c:309:52: sparse: cast truncates bits from constant value (ffffffff7fffffff becomes 7fffffff) Message-ID: <201903152355.U5zD497n%lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: f261c4e529dac5608a604d3dd3ae1cd2adf23c89 commit: 0e11faa48b07a063289d65363015a3d51ca4c337 PCI: dwc: Make use of BIT() in constant definitions date: 2 weeks ago reproduce: # apt-get install sparse git checkout 0e11faa48b07a063289d65363015a3d51ca4c337 make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' sparse warnings: (new ones prefixed by >>) >> drivers/pci/controller/dwc/pcie-designware.c:309:52: sparse: cast truncates bits from constant value (ffffffff7fffffff becomes 7fffffff) vim +309 drivers/pci/controller/dwc/pcie-designware.c 291 292 void dw_pcie_disable_atu(struct dw_pcie *pci, int index, 293 enum dw_pcie_region_type type) 294 { 295 int region; 296 297 switch (type) { 298 case DW_PCIE_REGION_INBOUND: 299 region = PCIE_ATU_REGION_INBOUND; 300 break; 301 case DW_PCIE_REGION_OUTBOUND: 302 region = PCIE_ATU_REGION_OUTBOUND; 303 break; 304 default: 305 return; 306 } 307 308 dw_pcie_writel_dbi(pci, PCIE_ATU_VIEWPORT, region | index); > 309 dw_pcie_writel_dbi(pci, PCIE_ATU_CR2, (u32)~PCIE_ATU_ENABLE); 310 } 311 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation