Hi Chen, kernel test robot noticed the following build warnings: [auto build test WARNING on fac04efc5c793dccbd07e2d59af9f90b7fc0dca4] url: https://github.com/intel-lab-lkp/linux/commits/Chen-Wang/dt-bindings-interrupt-controller-Add-Sophgo-SG2042-MSI/20241209-151429 base: fac04efc5c793dccbd07e2d59af9f90b7fc0dca4 patch link: https://lore.kernel.org/r/c882fe329932409131be76ce47b81a6155595ce4.1733726057.git.unicorn_wang%40outlook.com patch subject: [PATCH v2 2/3] irqchip: Add the Sophgo SG2042 MSI interrupt controller config: alpha-randconfig-r063-20241211 (https://download.01.org/0day-ci/archive/20241211/202412110221.35ohPaia-lkp@xxxxxxxxx/config) compiler: alpha-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241211/202412110221.35ohPaia-lkp@xxxxxxxxx/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 <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202412110221.35ohPaia-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/irqchip/irq-sg2042-msi.c:273:34: warning: 'sg2042_msi_of_match' defined but not used [-Wunused-const-variable=] 273 | static const struct of_device_id sg2042_msi_of_match[] = { | ^~~~~~~~~~~~~~~~~~~ vim +/sg2042_msi_of_match +273 drivers/irqchip/irq-sg2042-msi.c 272 > 273 static const struct of_device_id sg2042_msi_of_match[] = { 274 { .compatible = "sophgo,sg2042-msi" }, 275 {} 276 }; 277 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki