From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.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 9B84B3714F; Mon, 9 Oct 2023 18:20:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="T8rRKyjn" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1696875611; x=1728411611; h=date:from:to:cc:subject:message-id:mime-version; bh=e5iN/2ttRBZtDAKCXaXbpaBsZWwX9XofORZVJVhyEgU=; b=T8rRKyjnwkNQg6Mivhl6PDH6izVf9s3NfMabZcXGVL9+lS2pVwtuGydr T1nDPAsDa24TQxctKWwByIjzIlRkIwbcG4eq+hQDodOUU4sNaPjIOdqZN ExOUyijAEupMN73mK2qjMT/HrNG4SV7Q0EGV+RNsQHgBSXLZ5TxkNEUWq xoMXsKq1f7YSHYHcUTm8kaJ+uLoA6zUDB9Su6mSPfQk6pD4HJobSyc5SX oACMd0HuVBXIt9V1O3v1JeNnoVita6mEB733TcT/wcF83/OHi6qLKrNtY x9OHD/kiknbtoNHWvjzIeNrWwziuQXM4I903bcNv6AOBoDaEgTMveg4EB A==; X-IronPort-AV: E=McAfee;i="6600,9927,10858"; a="448405833" X-IronPort-AV: E=Sophos;i="6.03,210,1694761200"; d="scan'208";a="448405833" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Oct 2023 11:20:10 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10858"; a="818939027" X-IronPort-AV: E=Sophos;i="6.03,210,1694761200"; d="scan'208";a="818939027" Received: from lkp-server02.sh.intel.com (HELO 4ed589823ba4) ([10.239.97.151]) by fmsmga008.fm.intel.com with ESMTP; 09 Oct 2023 11:20:09 -0700 Received: from kbuild by 4ed589823ba4 with local (Exim 4.96) (envelope-from ) id 1qpurO-0000VQ-2X; Mon, 09 Oct 2023 18:20:06 +0000 Date: Tue, 10 Oct 2023 02:19:44 +0800 From: kernel test robot To: Rob Herring Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Linux Memory Management List , Xu Yilun Subject: [linux-next:master 10253/10591] drivers/fpga/xilinx-pr-decoupler.c:94:34: warning: unused variable 'xlnx_pr_decoupler_of_match' Message-ID: <202310100247.Y7BFcalX-lkp@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 tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 2a860505b617cf8fda4ebff6cf05d3f774145440 commit: 8c966aadcc023c8db7a9d24a3a504a9b39b1202c [10253/10591] fpga: Use device_get_match_data() config: hexagon-randconfig-r021-20221128 (https://download.01.org/0day-ci/archive/20231010/202310100247.Y7BFcalX-lkp@intel.com/config) compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231010/202310100247.Y7BFcalX-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/202310100247.Y7BFcalX-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from drivers/fpga/xilinx-pr-decoupler.c:11: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:337: include/asm-generic/io.h:547:31: 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:560:61: 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/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) ^ In file included from drivers/fpga/xilinx-pr-decoupler.c:11: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:337: include/asm-generic/io.h:573:61: 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/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) ^ In file included from drivers/fpga/xilinx-pr-decoupler.c:11: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:337: include/asm-generic/io.h:584:33: 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:594:59: 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:604:59: 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); ~~~~~~~~~~ ^ >> drivers/fpga/xilinx-pr-decoupler.c:94:34: warning: unused variable 'xlnx_pr_decoupler_of_match' [-Wunused-const-variable] static const struct of_device_id xlnx_pr_decoupler_of_match[] = { ^ 7 warnings generated. vim +/xlnx_pr_decoupler_of_match +94 drivers/fpga/xilinx-pr-decoupler.c 30a2ac9a8bb5fce1 Nava kishore Manne 2021-02-11 93 7e961c12be424c6c Moritz Fischer 2017-03-24 @94 static const struct of_device_id xlnx_pr_decoupler_of_match[] = { 30a2ac9a8bb5fce1 Nava kishore Manne 2021-02-11 95 { .compatible = "xlnx,pr-decoupler-1.00", .data = &decoupler_config }, 30a2ac9a8bb5fce1 Nava kishore Manne 2021-02-11 96 { .compatible = "xlnx,pr-decoupler", .data = &decoupler_config }, 30a2ac9a8bb5fce1 Nava kishore Manne 2021-02-11 97 { .compatible = "xlnx,dfx-axi-shutdown-manager-1.00", 30a2ac9a8bb5fce1 Nava kishore Manne 2021-02-11 98 .data = &shutdown_config }, 30a2ac9a8bb5fce1 Nava kishore Manne 2021-02-11 99 { .compatible = "xlnx,dfx-axi-shutdown-manager", 30a2ac9a8bb5fce1 Nava kishore Manne 2021-02-11 100 .data = &shutdown_config }, 7e961c12be424c6c Moritz Fischer 2017-03-24 101 {}, 7e961c12be424c6c Moritz Fischer 2017-03-24 102 }; 7e961c12be424c6c Moritz Fischer 2017-03-24 103 MODULE_DEVICE_TABLE(of, xlnx_pr_decoupler_of_match); 7e961c12be424c6c Moritz Fischer 2017-03-24 104 :::::: The code at line 94 was first introduced by commit :::::: 7e961c12be424c6c1e355d469cc1b82dbf3af718 fpga: Add support for Xilinx LogiCORE PR Decoupler :::::: TO: Moritz Fischer :::::: CC: Greg Kroah-Hartman -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki