From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.65]) (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 E44A26FCE1; Tue, 5 Dec 2023 23:15:01 +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="JgfxOGsS" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1701818101; x=1733354101; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=uvO2Khwda7EpRuiNDYxdXOiNlOv9MVw2vm74fm8w2zM=; b=JgfxOGsScVF4kJ7POKShZ8/GRM8jI9AdZaT31IQtDuEIGz/5PNNpeq0Q U6oEpebpIMnQhJsGJdI+iXEY7ePBcCjk3LL/IHbpAwm9SSslXAUXysm7e KB4C9dydILIQ9oNpJb+JOmo0WyvPlitnVVU3U4Lx39JmjD0H6qXCQW4oA LwaAsqTLdFXVk5ejhggCHSX1kEtHAO87ZPBAF9AP+rftHBeJOmtjmwaFm NBPss6nG2RFHV2YsqsLSfHlTNjnFNAbOauUFrs3ki8E4ESR3bKGsP1k9m USQAYlKKSk0A9s0OUDHDIUZaekcJ+F3+hHADqm7AZmQwNUnGWrKww5tZW A==; X-IronPort-AV: E=McAfee;i="6600,9927,10915"; a="397863259" X-IronPort-AV: E=Sophos;i="6.04,253,1695711600"; d="scan'208";a="397863259" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Dec 2023 15:15:01 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10915"; a="944435995" X-IronPort-AV: E=Sophos;i="6.04,253,1695711600"; d="scan'208";a="944435995" Received: from lkp-server02.sh.intel.com (HELO b07ab15da5fe) ([10.239.97.151]) by orsmga005.jf.intel.com with ESMTP; 05 Dec 2023 15:14:58 -0800 Received: from kbuild by b07ab15da5fe with local (Exim 4.96) (envelope-from ) id 1rAecy-0009rM-0l; Tue, 05 Dec 2023 23:14:56 +0000 Date: Wed, 6 Dec 2023 07:14:05 +0800 From: kernel test robot To: Shin'ichiro Kawasaki Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev Subject: Re: [PATCH RFC] platform/x86: p2sb: Allow p2sb_bar() calls during PCI device probe Message-ID: <202312060601.Wtrr6tJ1-lkp@intel.com> References: <20231201104759.949340-1-shinichiro.kawasaki@wdc.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: <20231201104759.949340-1-shinichiro.kawasaki@wdc.com> Hi Shin'ichiro, [This is a private test report for your RFC patch.] kernel test robot noticed the following build warnings: [auto build test WARNING on linus/master] [also build test WARNING on v6.7-rc4 next-20231205] [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/Shin-ichiro-Kawasaki/platform-x86-p2sb-Allow-p2sb_bar-calls-during-PCI-device-probe/20231201-185053 base: linus/master patch link: https://lore.kernel.org/r/20231201104759.949340-1-shinichiro.kawasaki%40wdc.com patch subject: [PATCH RFC] platform/x86: p2sb: Allow p2sb_bar() calls during PCI device probe config: i386-randconfig-011-20231203 (https://download.01.org/0day-ci/archive/20231206/202312060601.Wtrr6tJ1-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/20231206/202312060601.Wtrr6tJ1-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/202312060601.Wtrr6tJ1-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/platform/x86/p2sb.c:90:9: warning: variable 'ret' is uninitialized when used here [-Wuninitialized] return ret; ^~~ drivers/platform/x86/p2sb.c:79:9: note: initialize the variable 'ret' to silence this warning int ret; ^ = 0 1 warning generated. Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for DRM_I915_DEBUG_GEM Depends on [n]: HAS_IOMEM [=y] && DRM_I915 [=m] && EXPERT [=y] && DRM_I915_WERROR [=n] Selected by [m]: - DRM_I915_DEBUG [=y] && HAS_IOMEM [=y] && DRM_I915 [=m] && EXPERT [=y] && !COMPILE_TEST [=n] vim +/ret +90 drivers/platform/x86/p2sb.c 9745fb07474f450 drivers/platform/x86/intel/p2sb.c Jonathan Yong 2022-06-06 75 d34534bd969a42a drivers/platform/x86/p2sb.c Shin'ichiro Kawasaki 2023-12-01 76 static int p2sb_scan_and_cache(struct pci_bus *bus, unsigned int devfn) 9745fb07474f450 drivers/platform/x86/intel/p2sb.c Jonathan Yong 2022-06-06 77 { 9745fb07474f450 drivers/platform/x86/intel/p2sb.c Jonathan Yong 2022-06-06 78 struct pci_dev *pdev; 9745fb07474f450 drivers/platform/x86/intel/p2sb.c Jonathan Yong 2022-06-06 79 int ret; d34534bd969a42a drivers/platform/x86/p2sb.c Shin'ichiro Kawasaki 2023-12-01 80 struct p2sb_res_cache *cache = &p2sb_resources[PCI_FUNC(devfn)]; 9745fb07474f450 drivers/platform/x86/intel/p2sb.c Jonathan Yong 2022-06-06 81 9745fb07474f450 drivers/platform/x86/intel/p2sb.c Jonathan Yong 2022-06-06 82 pdev = pci_scan_single_device(bus, devfn); d34534bd969a42a drivers/platform/x86/p2sb.c Shin'ichiro Kawasaki 2023-12-01 83 if (!pdev || p2sb_invalid_resource(&pdev->resource[0])) 9745fb07474f450 drivers/platform/x86/intel/p2sb.c Jonathan Yong 2022-06-06 84 return -ENODEV; 9745fb07474f450 drivers/platform/x86/intel/p2sb.c Jonathan Yong 2022-06-06 85 d34534bd969a42a drivers/platform/x86/p2sb.c Shin'ichiro Kawasaki 2023-12-01 86 p2sb_read_bar0(pdev, &cache->res); d34534bd969a42a drivers/platform/x86/p2sb.c Shin'ichiro Kawasaki 2023-12-01 87 cache->bus_dev_id = bus->dev.id; 9745fb07474f450 drivers/platform/x86/intel/p2sb.c Jonathan Yong 2022-06-06 88 9745fb07474f450 drivers/platform/x86/intel/p2sb.c Jonathan Yong 2022-06-06 89 pci_stop_and_remove_bus_device(pdev); 9745fb07474f450 drivers/platform/x86/intel/p2sb.c Jonathan Yong 2022-06-06 @90 return ret; 9745fb07474f450 drivers/platform/x86/intel/p2sb.c Jonathan Yong 2022-06-06 91 } 9745fb07474f450 drivers/platform/x86/intel/p2sb.c Jonathan Yong 2022-06-06 92 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki