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<47684b91-7c0f-4260-abfd-2795fdaa2b31@nvidia.com> Date: Wed, 3 Dec 2025 16:34:10 +0530 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH V3 1/3] iommu/arm-smmu-v3: Add device-tree support for CMDQV driver To: will@kernel.org, robin.murphy@arm.com, nicolinc@nvidia.com Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, thierry.reding@gmail.com, jonathanh@nvidia.com, vdumpa@nvidia.com, jgg@ziepe.ca, linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org, conor+dt@kernel.org, krzk+dt@kernel.org, joro@8bytes.org, robh@kernel.org, kernel test robot References: <20251201163219.3237266-2-amhetre@nvidia.com> <202512031601.IpliwbHW-lkp@intel.com> Content-Language: en-US From: Ashish Mhetre In-Reply-To: <202512031601.IpliwbHW-lkp@intel.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: BMXPR01CA0083.INDPRD01.PROD.OUTLOOK.COM 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=?utf-8?B?ZFU4S3lQSW9sTWQ0OXZ0QVRsdjhNV3NtUGlQajB6TVFRZDJmUnJ6SEtLb3VZ?= =?utf-8?Q?ECG49f0CGwGLF+mHkcDkMwgT6?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 3e3eabcf-336d-4863-65d1-08de325bb6a9 X-MS-Exchange-CrossTenant-AuthSource: BN5PR12MB9511.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 03 Dec 2025 11:04:22.3808 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: ljGP2yI6kU3zi7gP3UMoB26mS8Z2HQ21+4GSBpnbDu1E/zfJ5r8EfatwAPBh7DQVoRt7vSM7rMSntob17YIaBQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB7793 On 12/3/2025 2:05 PM, kernel test robot wrote: > External email: Use caution opening links or attachments > > > Hi Ashish, > > kernel test robot noticed the following build errors: > > [auto build test ERROR on next-20251201] > [also build test ERROR on v6.18] > [cannot apply to robh/for-next linus/master v6.18 v6.18-rc7 v6.18-rc6] > [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/Ashish-Mhetre/iommu-arm-smmu-v3-Add-device-tree-support-for-CMDQV-driver/20251202-003517 > base: next-20251201 > patch link: https://lore.kernel.org/r/20251201163219.3237266-2-amhetre%40nvidia.com > patch subject: [PATCH V3 1/3] iommu/arm-smmu-v3: Add device-tree support for CMDQV driver > config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20251203/202512031601.IpliwbHW-lkp@intel.com/config) > compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90) > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251203/202512031601.IpliwbHW-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/202512031601.IpliwbHW-lkp@intel.com/ > > All errors (new ones prefixed by >>): > >>> ld.lld: error: duplicate symbol: init_module > >>> defined at arm-smmu-v3.c > >>> drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.o:(init_module) > >>> defined at tegra241-cmdqv.c > >>> drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.o:(.init.text+0x4) > -- >>> ld.lld: error: duplicate symbol: cleanup_module > >>> defined at arm-smmu-v3.c > >>> drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.o:(cleanup_module) > >>> defined at tegra241-cmdqv.c > >>> drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.o:(.exit.text+0x4) Hi Nic, Robin, How do you suggest fixing this? Is it fine to compile tegra241-cmdqv as separate module and export tegra241_cmdqv_probe() to fix this warning? I am using GCC compiler and was not able to reproduce this with W=1 build. Thanks, Ashish Mhetre > -- > 0-DAY CI Kernel Test Service > https://github.com/intel/lkp-tests/wiki