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Sat, 15 Apr 2023 04:20:10 +0000 Date: Sat, 15 Apr 2023 12:20:04 +0800 From: kernel test robot To: Jakub Kicinski , davem@davemloft.net Cc: oe-kbuild-all@lists.linux.dev, netdev@vger.kernel.org, edumazet@google.com, pabeni@redhat.com, Jakub Kicinski , saeedm@nvidia.com, leon@kernel.org Subject: Re: [PATCH net-next] eth: mlx5: avoid iterator use outside of a loop Message-ID: <202304151226.OgvGHiJI-lkp@intel.com> References: <20230414180729.198284-1-kuba@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230414180729.198284-1-kuba@kernel.org> Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hi Jakub, kernel test robot noticed the following build warnings: [auto build test WARNING on net-next/main] url: https://github.com/intel-lab-lkp/linux/commits/Jakub-Kicinski/eth-mlx5-avoid-iterator-use-outside-of-a-loop/20230415-021112 patch link: https://lore.kernel.org/r/20230414180729.198284-1-kuba%40kernel.org patch subject: [PATCH net-next] eth: mlx5: avoid iterator use outside of a loop config: arm64-randconfig-s052-20230413 (https://download.01.org/0day-ci/archive/20230415/202304151226.OgvGHiJI-lkp@intel.com/config) compiler: aarch64-linux-gcc (GCC) 12.1.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://github.com/intel-lab-lkp/linux/commit/1432c0a2b6d7ea977dad5de303481b1aae454ef4 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Jakub-Kicinski/eth-mlx5-avoid-iterator-use-outside-of-a-loop/20230415-021112 git checkout 1432c0a2b6d7ea977dad5de303481b1aae454ef4 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/net/ethernet/mellanox/mlx5/core/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot | Link: https://lore.kernel.org/oe-kbuild-all/202304151226.OgvGHiJI-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> drivers/net/ethernet/mellanox/mlx5/core/eq.c:1077:16: sparse: sparse: Using plain integer as NULL pointer vim +1077 drivers/net/ethernet/mellanox/mlx5/core/eq.c 1063 1064 struct cpumask * 1065 mlx5_comp_irq_get_affinity_mask(struct mlx5_core_dev *dev, int vector) 1066 { 1067 struct mlx5_eq_table *table = dev->priv.eq_table; 1068 struct mlx5_eq_comp *eq; 1069 int i = 0; 1070 1071 list_for_each_entry(eq, &table->comp_eqs_list, list) { 1072 if (i++ == vector) 1073 return mlx5_irq_get_affinity_mask(eq->core.irq); 1074 } 1075 1076 WARN_ON_ONCE(1); > 1077 return 0; 1078 } 1079 EXPORT_SYMBOL(mlx5_comp_irq_get_affinity_mask); 1080 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests