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X-CSE-ConnectionGUID: TXVvOhJ5SeioCAOlXXUEyg== X-CSE-MsgGUID: 0LGSJyHKQ2ms6l9JoDsLbQ== X-IronPort-AV: E=McAfee;i="6800,10657,11501"; a="55551141" X-IronPort-AV: E=Sophos;i="6.16,335,1744095600"; d="scan'208";a="55551141" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Jul 2025 15:43:32 -0700 X-CSE-ConnectionGUID: 70TgYBp0R+So1kNDZjPRHg== X-CSE-MsgGUID: gGNfpaRzTpeqI3mV40pCAw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,335,1744095600"; d="scan'208";a="190751334" Received: from lkp-server01.sh.intel.com (HELO 9ee84586c615) ([10.239.97.150]) by fmviesa001.fm.intel.com with ESMTP; 23 Jul 2025 15:43:29 -0700 Received: from kbuild by 9ee84586c615 with local (Exim 4.96) (envelope-from ) id 1ueiBK-000Jr9-1n; Wed, 23 Jul 2025 22:43:26 +0000 Date: Thu, 24 Jul 2025 06:43:24 +0800 From: kernel test robot To: Otto =?iso-8859-1?Q?Pfl=FCger?= , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Orson Zhai , Baolin Wang , Chunyan Zhang , Kevin Tang Cc: oe-kbuild-all@lists.linux.dev, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Otto =?iso-8859-1?Q?Pfl=FCger?= Subject: Re: [PATCH v2 14/15] drm: sprd: implement IOMMU-based buffer management Message-ID: <202507240607.WFI08aBs-lkp@intel.com> References: <20250722-ums9230-drm-v2-14-054276ec213d@abscue.de> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250722-ums9230-drm-v2-14-054276ec213d@abscue.de> Hi Otto, kernel test robot noticed the following build warnings: [auto build test WARNING on 05adbee3ad528100ab0285c15c91100e19e10138] url: https://github.com/intel-lab-lkp/linux/commits/Otto-Pfl-ger/dt-bindings-display-sprd-adapt-for-UMS9230-support/20250722-224414 base: 05adbee3ad528100ab0285c15c91100e19e10138 patch link: https://lore.kernel.org/r/20250722-ums9230-drm-v2-14-054276ec213d%40abscue.de patch subject: [PATCH v2 14/15] drm: sprd: implement IOMMU-based buffer management config: hexagon-randconfig-r132-20250724 (https://download.01.org/0day-ci/archive/20250724/202507240607.WFI08aBs-lkp@intel.com/config) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 853c343b45b3e83cc5eeef5a52fc8cc9d8a09252) reproduce: (https://download.01.org/0day-ci/archive/20250724/202507240607.WFI08aBs-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/202507240607.WFI08aBs-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> drivers/gpu/drm/sprd/sprd_gem.c:157:16: sparse: sparse: Using plain integer as NULL pointer vim +157 drivers/gpu/drm/sprd/sprd_gem.c 135 136 static struct sg_table *sprd_gem_object_get_sg_table(struct drm_gem_object *obj) 137 { 138 struct sprd_gem_obj *sprd_gem = to_sprd_gem_obj(obj); 139 struct sg_table *sgt; 140 int ret; 141 142 if (sprd_gem->pages) 143 return drm_prime_pages_to_sg(obj->dev, sprd_gem->pages, 144 obj->size >> PAGE_SHIFT); 145 146 sgt = kzalloc(sizeof(*sgt), GFP_KERNEL); 147 if (!sgt) 148 return ERR_PTR(-ENOMEM); 149 150 ret = dma_get_sgtable(obj->dev->dev, sgt, sprd_gem->vaddr, 151 sprd_gem->dma_addr, obj->size); 152 if (ret < 0) { 153 kfree(sgt); 154 return ERR_PTR(ret); 155 } 156 > 157 return 0; 158 } 159 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki