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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DF919C001DB for ; Wed, 5 Jul 2023 04:30:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229700AbjGEEay (ORCPT ); Wed, 5 Jul 2023 00:30:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43168 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229645AbjGEEax (ORCPT ); Wed, 5 Jul 2023 00:30:53 -0400 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F015E10F2; Tue, 4 Jul 2023 21:30:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1688531451; x=1720067451; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=84aTN3DMOl1ZTyWwGezoKTAMEsc6BiJKaJjLi0xsoro=; b=VIUz6+JbfHBVPuAdhKEzRcSdJqPtzYc5N2Iqt7krRSUCHVj+Ah2sqCHz L4eNr425u2r0yjDgsZwfgxIgCPOKWv4XWVcpI9eaMQVCpEB+NePmTwem5 XbQWZtQ27YoUGC4nXmnDPo5MgetlWJ74Ot5QDRk2KfaIzWFsyDvnlQBcM Ry3hDSCC9jXIe0wg4RXhs0LBVF7YvLgoLbL6err01848WHzxPWn9C48Nd O3WiN3kqrNkmFQFKfGvNHY+hNJ7sfa+RBD3WG+CmfdaJW2cQC21Lq3IQh WLUxKgT+1hpAG++wRqpdYgphC3VHReYgzNQQDVuBXVEXqft1NCLV2RK15 A==; X-IronPort-AV: E=McAfee;i="6600,9927,10761"; a="393996440" X-IronPort-AV: E=Sophos;i="6.01,182,1684825200"; d="scan'208";a="393996440" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Jul 2023 21:30:51 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10761"; a="722251111" X-IronPort-AV: E=Sophos;i="6.01,182,1684825200"; d="scan'208";a="722251111" Received: from lkp-server01.sh.intel.com (HELO c544d7fc5005) ([10.239.97.150]) by fmsmga007.fm.intel.com with ESMTP; 04 Jul 2023 21:30:48 -0700 Received: from kbuild by c544d7fc5005 with local (Exim 4.96) (envelope-from ) id 1qGuAB-0000MS-1T; Wed, 05 Jul 2023 04:30:47 +0000 Date: Wed, 5 Jul 2023 12:29:52 +0800 From: kernel test robot To: Marek Vasut , linux-leds@vger.kernel.org Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Isai Gaspar , Marek Vasut , Conor Dooley , Krzysztof Kozlowski , Lee Jones , Pavel Machek , Rob Herring , devicetree@vger.kernel.org Subject: Re: [PATCH v2 2/2] leds: pca995x: Add support for PCA995X chips Message-ID: <202307051216.4riLLcLt-lkp@intel.com> References: <20230705000407.153005-2-marex@denx.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230705000407.153005-2-marex@denx.de> Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Hi Marek, kernel test robot noticed the following build warnings: [auto build test WARNING on lee-leds/for-leds-next] [also build test WARNING on krzk-dt/for-next] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Marek-Vasut/leds-pca995x-Add-support-for-PCA995X-chips/20230705-080506 base: https://git.kernel.org/pub/scm/linux/kernel/git/lee/leds.git for-leds-next patch link: https://lore.kernel.org/r/20230705000407.153005-2-marex%40denx.de patch subject: [PATCH v2 2/2] leds: pca995x: Add support for PCA995X chips config: s390-randconfig-r025-20230705 (https://download.01.org/0day-ci/archive/20230705/202307051216.4riLLcLt-lkp@intel.com/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce: (https://download.01.org/0day-ci/archive/20230705/202307051216.4riLLcLt-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202307051216.4riLLcLt-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from drivers/leds/leds-pca995x.c:16: In file included from include/linux/regmap.h:20: In file included from include/linux/iopoll.h:14: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 547 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x)) | ^ include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16' 102 | #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x)) | ^ In file included from drivers/leds/leds-pca995x.c:16: In file included from include/linux/regmap.h:20: In file included from include/linux/iopoll.h:14: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) | ^ include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32' 115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x)) | ^ In file included from drivers/leds/leds-pca995x.c:16: In file included from include/linux/regmap.h:20: In file included from include/linux/iopoll.h:14: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 584 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:692:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 692 | readsb(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:700:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 700 | readsw(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:708:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 708 | readsl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:717:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 717 | writesb(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:726:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 726 | writesw(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:735:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 735 | writesl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ >> drivers/leds/leds-pca995x.c:177:34: warning: unused variable 'pca995x_of_match' [-Wunused-const-variable] 177 | static const struct of_device_id pca995x_of_match[] = { | ^ 13 warnings generated. vim +/pca995x_of_match +177 drivers/leds/leds-pca995x.c 176 > 177 static const struct of_device_id pca995x_of_match[] = { 178 { .compatible = "nxp,pca9952", .data = (void *)0 /* non-B chip */ }, 179 { .compatible = "nxp,pca9955b", .data = (void *)1 /* B-type chip */ }, 180 {}, 181 }; 182 MODULE_DEVICE_TABLE(i2c, pca995x_of_match); 183 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki