From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga06.intel.com (mga06b.intel.com [134.134.136.31]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 88CFB7C for ; Tue, 7 Jun 2022 06:44:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1654584288; x=1686120288; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=9rkHTm7Ei8ImHRwiNFg80RLRPu9BYHXM2S+xFJHjJeQ=; b=dT4mPTRSWK/6g8Y89aUwVj9wExVOYUWEa3v/oDh2zEIzULm7T2DNz/z1 5+Algq1Jz7Inj9zJArhg0caqa1aV8yddC2qgoNiQWvpDLCMNwWBMhvdSR Iv3wMMajEzp0T3Vwm605HYXdDpAMnkYDYSBRsNN74Xm9LKff0dZXTaUAF FMaf8DFG8ZYck6QMXD+In7miSMdvzH2Cp2+EVFbJmiX4lXT1ke33nXpAD yuajudhVZXBIGjCMwGsLRBEbNHvZS5sqdKzSbeO8GIcB9UnztgIAEGtXr EIz475/4wTUdoUAkg7axaPjn0gmVex4p3nvNtL5W/4xiomShadeInrBqW g==; X-IronPort-AV: E=McAfee;i="6400,9594,10370"; a="337962894" X-IronPort-AV: E=Sophos;i="5.91,283,1647327600"; d="scan'208";a="337962894" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jun 2022 23:44:47 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,283,1647327600"; d="scan'208";a="709362247" Received: from lkp-server01.sh.intel.com (HELO 60dabacc1df6) ([10.239.97.150]) by orsmga004.jf.intel.com with ESMTP; 06 Jun 2022 23:44:45 -0700 Received: from kbuild by 60dabacc1df6 with local (Exim 4.95) (envelope-from ) id 1nySxI-000DR1-I4; Tue, 07 Jun 2022 06:44:44 +0000 Date: Tue, 7 Jun 2022 14:44:06 +0800 From: kernel test robot To: kah.jing.lee@intel.com, arnd@arndb.de, gregkh@linuxfoundation.org Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, dinguyen@kernel.org, tien.sung.ang@intel.com, Kah Jing Lee , Ley Foon Tan Subject: Re: [PATCH 1/2] drivers: misc: intel_sysid: Add sysid from arch to drivers Message-ID: <202206071402.jrrayqsc-lkp@intel.com> References: <20220602122212.3021232-1-kah.jing.lee@intel.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220602122212.3021232-1-kah.jing.lee@intel.com> Hi, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on char-misc/char-misc-testing] [also build test WARNING on soc/for-next staging/staging-testing v5.19-rc1 next-20220607] [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] url: https://github.com/intel-lab-lkp/linux/commits/kah-jing-lee-intel-com/New-driver-for-Intel-Altera-FPGA-System-ID-softIP/20220602-202553 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git 90de6805267f8c79cd2b1a36805071e257c39b5c config: s390-randconfig-r024-20220607 (https://download.01.org/0day-ci/archive/20220607/202206071402.jrrayqsc-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project b92436efcb7813fc481b30f2593a4907568d917a) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install s390 cross compiling tool for clang build # apt-get install binutils-s390x-linux-gnu # https://github.com/intel-lab-lkp/linux/commit/bfd40e4202ce67e500bedec9eaaf9b7207f980d0 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review kah-jing-lee-intel-com/New-driver-for-Intel-Altera-FPGA-System-ID-softIP/20220602-202553 git checkout bfd40e4202ce67e500bedec9eaaf9b7207f980d0 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot All warnings (new ones prefixed by >>): In file included from drivers/misc/intel_sysid.c:26: 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:464:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __raw_readb(PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:477:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 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' #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x)) ^ include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16' #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x)) ^ In file included from drivers/misc/intel_sysid.c:26: 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:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 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' #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) ^ include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32' #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x)) ^ In file included from drivers/misc/intel_sysid.c:26: 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:501:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writeb(value, PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:609:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsb(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:617:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsw(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:625:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsl(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:634:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesb(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:643:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesw(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesl(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ >> drivers/misc/intel_sysid.c:109:34: warning: unused variable 'intel_sysid_match' [-Wunused-const-variable] static const struct of_device_id intel_sysid_match[] = { ^ 13 warnings generated. vim +/intel_sysid_match +109 drivers/misc/intel_sysid.c 108 > 109 static const struct of_device_id intel_sysid_match[] = { 110 { .compatible = "intel,socfpga-sysid-1.0" }, 111 { /* Sentinel */ } 112 }; 113 -- 0-DAY CI Kernel Test Service https://01.org/lkp