From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.17]) (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 8D4491F7085 for ; Sun, 2 Feb 2025 14:04:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.17 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738505097; cv=none; b=bsiEPUlNFVOjwurfHlddw1uqub9VowU1TiFSbTdnMGQuBgC042UbShBoaj2kwL2ju9EwgYsdNefGjuvLFQIQCwIstYneDzf+AwxghhTDIytMis8qVEI9LjoVd1TPs2pB8cfjKE0Gf91YtHaHUOnrXsPGybvmRaJuemKSFiBTAuY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738505097; c=relaxed/simple; bh=6PYjmxWpcAN8Um06ZhtjNj9iMjXnuu3Vcv+ohXvMwYo=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=AM2yieWXCh39avFxJSIOvKILZGfxt6F9UHYlocpVsyfbYV1mwFDGq5n649ezk6Dh7TLrV1kE7hXNjxqpccB1FcTPqHIR3ET1VpyvQZvpommDk8wvyXjjVafR8qERor5A+H8fB+jIsFGAiKzLqQiHVEN/46g7xAwIF0KPCq7+IXk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=Xwtj/SKX; arc=none smtp.client-ip=192.198.163.17 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="Xwtj/SKX" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1738505096; x=1770041096; h=date:from:to:cc:subject:message-id:mime-version; bh=6PYjmxWpcAN8Um06ZhtjNj9iMjXnuu3Vcv+ohXvMwYo=; b=Xwtj/SKXDt15XvN80Ji4lf0LVvrDpUgQtScrTG1X2bNjmx8OkWSu99g9 7qa3YUKR579mU5pUB7GpAVi5aqcvgqFqZyojqy9ZG+AugYlrZvSMhhHDq jwCRje2pLhjSRbX/W7LFMlABCLsZnZSfcpebIiRWabPc8/4fUzxGy2V4r ReFfifSjNe+BwIHvJQib+D72efCy4WAQKGBE9Vt4BF11XsJdFdFYLq+Wm CweZH5cC/cr95ZwbpavzXI2XJ3gJfWnEg2laHIbrQ5VPocBlkUAd2X6Nq r68ZXTSXMqeNfkx3iWtpXqNMPodrX73xFhwRWAGA0zKZ7neAx+YZ9aiP7 g==; X-CSE-ConnectionGUID: MCvx4y73QtiVH9I2WPMMsg== X-CSE-MsgGUID: hRtTnIhQTu6ITZKPLgk4/w== X-IronPort-AV: E=McAfee;i="6700,10204,11334"; a="38915377" X-IronPort-AV: E=Sophos;i="6.13,254,1732608000"; d="scan'208";a="38915377" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Feb 2025 06:04:54 -0800 X-CSE-ConnectionGUID: GSYVoi5eQ4qisn7+j/7ZFw== X-CSE-MsgGUID: Yo4gUvuvSOykNMCBg8MWbw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,224,1728975600"; d="scan'208";a="115207254" Received: from lkp-server01.sh.intel.com (HELO d63d4d77d921) ([10.239.97.150]) by orviesa005.jf.intel.com with ESMTP; 02 Feb 2025 06:04:52 -0800 Received: from kbuild by d63d4d77d921 with local (Exim 4.96) (envelope-from ) id 1teaag-000pk1-0S; Sun, 02 Feb 2025 14:04:50 +0000 Date: Sun, 2 Feb 2025 22:04:48 +0800 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com, Dan Carpenter Subject: drivers/of/unittest.c:1195 of_unittest_reg() error: uninitialized symbol 'addr'. Message-ID: <202502022102.D4ESrh5e-lkp@intel.com> Precedence: bulk X-Mailing-List: oe-kbuild@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev CC: linux-kernel@vger.kernel.org TO: Frank Rowand CC: Rob Herring CC: Stephen Boyd tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: a86bf2283d2c9769205407e2b54777c03d012939 commit: 7b937cc243e5b1df8780a0aa743ce800df6c68d1 of: Create of_root if no dtb provided by firmware date: 11 months ago :::::: branch date: 15 hours ago :::::: commit date: 11 months ago config: sparc64-randconfig-r073-20250202 (https://download.01.org/0day-ci/archive/20250202/202502022102.D4ESrh5e-lkp@intel.com/config) compiler: sparc64-linux-gcc (GCC) 14.2.0 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 | Reported-by: Dan Carpenter | Closes: https://lore.kernel.org/r/202502022102.D4ESrh5e-lkp@intel.com/ New smatch warnings: drivers/of/unittest.c:1195 of_unittest_reg() error: uninitialized symbol 'addr'. Old smatch warnings: drivers/of/unittest.c:854 of_unittest_changeset() error: potential null dereference 'n1'. (__of_node_dup returns null) drivers/of/unittest.c:855 of_unittest_changeset() error: potential null dereference 'n2'. (__of_node_dup returns null) drivers/of/unittest.c:856 of_unittest_changeset() error: potential null dereference 'n21'. (__of_node_dup returns null) drivers/of/unittest.c:1007 of_unittest_pci_dma_ranges() warn: iterator 'i' not incremented drivers/of/unittest.c:1283 of_unittest_parse_interrupts() warn: bitwise AND condition is false here drivers/of/unittest.c:1360 of_unittest_parse_interrupts_extended() warn: bitwise AND condition is false here drivers/of/unittest.c:1522 of_unittest_platform_populate() warn: bitwise AND condition is false here vim +/addr +1195 drivers/of/unittest.c 3d5089c4263d35 Rob Herring 2023-03-28 1179 ff61bacd77f258 Rob Herring 2023-03-28 1180 static void __init of_unittest_reg(void) ff61bacd77f258 Rob Herring 2023-03-28 1181 { ff61bacd77f258 Rob Herring 2023-03-28 1182 struct device_node *np; ff61bacd77f258 Rob Herring 2023-03-28 1183 int ret; ff61bacd77f258 Rob Herring 2023-03-28 1184 u64 addr, size; ff61bacd77f258 Rob Herring 2023-03-28 1185 ff61bacd77f258 Rob Herring 2023-03-28 1186 np = of_find_node_by_path("/testcase-data/address-tests/bus@80000000/device@1000"); ff61bacd77f258 Rob Herring 2023-03-28 1187 if (!np) { ff61bacd77f258 Rob Herring 2023-03-28 1188 pr_err("missing testcase data\n"); ff61bacd77f258 Rob Herring 2023-03-28 1189 return; ff61bacd77f258 Rob Herring 2023-03-28 1190 } ff61bacd77f258 Rob Herring 2023-03-28 1191 ff61bacd77f258 Rob Herring 2023-03-28 1192 ret = of_property_read_reg(np, 0, &addr, &size); ff61bacd77f258 Rob Herring 2023-03-28 1193 unittest(!ret, "of_property_read_reg(%pOF) returned error %d\n", ff61bacd77f258 Rob Herring 2023-03-28 1194 np, ret); ff61bacd77f258 Rob Herring 2023-03-28 @1195 unittest(addr == 0x1000, "of_property_read_reg(%pOF) untranslated address (%llx) incorrect\n", ff61bacd77f258 Rob Herring 2023-03-28 1196 np, addr); ff61bacd77f258 Rob Herring 2023-03-28 1197 ff61bacd77f258 Rob Herring 2023-03-28 1198 of_node_put(np); ff61bacd77f258 Rob Herring 2023-03-28 1199 } ff61bacd77f258 Rob Herring 2023-03-28 1200 :::::: The code at line 1195 was first introduced by commit :::::: ff61bacd77f258bd2ed145efb69e5449b115d4fe of/address: Add of_property_read_reg() helper :::::: TO: Rob Herring :::::: CC: Rob Herring -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki