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Date:   Thu, 11 May 2023 07:23:18 +0800
From:   kernel test robot <lkp@intel.com>
To:     Michael Shavit <mshavit@google.com>, Will Deacon <will@kernel.org>,
        Robin Murphy <robin.murphy@arm.com>,
        Joerg Roedel <joro@8bytes.org>
Cc:     oe-kbuild-all@lists.linux.dev, Michael Shavit <mshavit@google.com>,
        jean-philippe@linaro.org, nicolinc@nvidia.com, jgg@nvidia.com,
        baolu.lu@linux.intel.com, linux-arm-kernel@lists.infradead.org,
        iommu@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1 4/5] iommu/arm-smmu-v3: Keep track of attached ssids
Message-ID: <202305110736.wdeuqPAi-lkp@intel.com>
References: <20230510205054.2667898-5-mshavit@google.com>
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In-Reply-To: <20230510205054.2667898-5-mshavit@google.com>
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Hi Michael,

kernel test robot noticed the following build warnings:

[auto build test WARNING on v6.4-rc1]
[also build test WARNING on linus/master next-20230510]
[cannot apply to joro-iommu/next arm-perf/for-next/perf]
[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/Michael-Shavit/iommu-arm-smmu-v3-Move-cdtable-to-arm_smmu_master/20230511-045514
base:   ac9a78681b921877518763ba0e89202254349d1b
patch link:    https://lore.kernel.org/r/20230510205054.2667898-5-mshavit%40google.com
patch subject: [PATCH v1 4/5] iommu/arm-smmu-v3: Keep track of attached ssids
config: arm64-allyesconfig (https://download.01.org/0day-ci/archive/20230511/202305110736.wdeuqPAi-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/2172fed7450d1bb8518b86b2b7113a1e42b4d456
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Michael-Shavit/iommu-arm-smmu-v3-Move-cdtable-to-arm_smmu_master/20230511-045514
        git checkout 2172fed7450d1bb8518b86b2b7113a1e42b4d456
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/iommu/arm/arm-smmu-v3/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202305110736.wdeuqPAi-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c:1857:5: warning: no previous prototype for 'arm_smmu_atc_inv_domain' [-Wmissing-prototypes]
    1857 | int arm_smmu_atc_inv_domain(struct arm_smmu_domain *smmu_domain,
         |     ^~~~~~~~~~~~~~~~~~~~~~~


vim +/arm_smmu_atc_inv_domain +1857 drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c

  1856	
> 1857	int arm_smmu_atc_inv_domain(struct arm_smmu_domain *smmu_domain,
  1858				    unsigned long iova, size_t size)
  1859	{
  1860		return arm_smmu_atc_inv_domain_ssid(smmu_domain, 0, iova, size);
  1861	}
  1862	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests