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X-IronPort-AV: E=McAfee;i="6600,9927,10913"; a="390863368" X-IronPort-AV: E=Sophos;i="6.04,249,1695711600"; d="scan'208";a="390863368" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Dec 2023 00:57:42 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10913"; a="774190999" X-IronPort-AV: E=Sophos;i="6.04,249,1695711600"; d="scan'208";a="774190999" Received: from lkp-server02.sh.intel.com (HELO b07ab15da5fe) ([10.239.97.151]) by fmsmga007.fm.intel.com with ESMTP; 04 Dec 2023 00:57:39 -0800 Received: from kbuild by b07ab15da5fe with local (Exim 4.96) (envelope-from ) id 1rA4ll-0007c6-1v; Mon, 04 Dec 2023 08:57:37 +0000 Date: Mon, 4 Dec 2023 16:56:37 +0800 From: kernel test robot To: Bartosz Golaszewski Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Bjorn Andersson , Krzysztof Kozlowski , Maximilian Luz Subject: drivers/firmware/qcom/qcom_scm.c:1652:34: warning: unused variable 'qcom_scm_qseecom_allowlist' Message-ID: <202312041607.kGqDrfpq-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 Hi Bartosz, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 33cc938e65a98f1d29d0a18403dbbee050dcad9a commit: bdac188ec3c71800dd8419620224ee74ef37732a firmware: qcom: move Qualcomm code into its own directory date: 6 weeks ago config: s390-randconfig-002-20231119 (https://download.01.org/0day-ci/archive/20231204/202312041607.kGqDrfpq-lkp@intel.com/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231204/202312041607.kGqDrfpq-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/202312041607.kGqDrfpq-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from drivers/firmware/qcom/qcom_scm.c:10: In file included from include/linux/dma-mapping.h:11: In file included from include/linux/scatterlist.h:9: In file included from arch/s390/include/asm/io.h:78: 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/firmware/qcom/qcom_scm.c:10: In file included from include/linux/dma-mapping.h:11: In file included from include/linux/scatterlist.h:9: In file included from arch/s390/include/asm/io.h:78: 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/firmware/qcom/qcom_scm.c:10: In file included from include/linux/dma-mapping.h:11: In file included from include/linux/scatterlist.h:9: In file included from arch/s390/include/asm/io.h:78: 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/firmware/qcom/qcom_scm.c:1652:34: warning: unused variable 'qcom_scm_qseecom_allowlist' [-Wunused-const-variable] 1652 | static const struct of_device_id qcom_scm_qseecom_allowlist[] = { | ^ 13 warnings generated. vim +/qcom_scm_qseecom_allowlist +1652 drivers/firmware/qcom/qcom_scm.c 00b1248606ba39 drivers/firmware/qcom_scm.c Maximilian Luz 2023-08-27 1647 00b1248606ba39 drivers/firmware/qcom_scm.c Maximilian Luz 2023-08-27 1648 /* 00b1248606ba39 drivers/firmware/qcom_scm.c Maximilian Luz 2023-08-27 1649 * We do not yet support re-entrant calls via the qseecom interface. To prevent 00b1248606ba39 drivers/firmware/qcom_scm.c Maximilian Luz 2023-08-27 1650 + any potential issues with this, only allow validated machines for now. 00b1248606ba39 drivers/firmware/qcom_scm.c Maximilian Luz 2023-08-27 1651 */ 00b1248606ba39 drivers/firmware/qcom_scm.c Maximilian Luz 2023-08-27 @1652 static const struct of_device_id qcom_scm_qseecom_allowlist[] = { 00b1248606ba39 drivers/firmware/qcom_scm.c Maximilian Luz 2023-08-27 1653 { .compatible = "lenovo,thinkpad-x13s", }, 00b1248606ba39 drivers/firmware/qcom_scm.c Maximilian Luz 2023-08-27 1654 { } 00b1248606ba39 drivers/firmware/qcom_scm.c Maximilian Luz 2023-08-27 1655 }; 00b1248606ba39 drivers/firmware/qcom_scm.c Maximilian Luz 2023-08-27 1656 :::::: The code at line 1652 was first introduced by commit :::::: 00b1248606ba3979ccae30ed11df8cdc1a84245a firmware: qcom_scm: Add support for Qualcomm Secure Execution Environment SCM interface :::::: TO: Maximilian Luz :::::: CC: Bjorn Andersson -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki