Hi Brenda, I love your patch! Perhaps something to improve: [auto build test WARNING on tty/tty-testing] [also build test WARNING on tty/tty-next tty/tty-linus linus/master v6.3-rc4 next-20230330] [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/Brenda-Streiff/serial-8250-add-driver-for-NI-UARTs/20230330-010726 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing patch link: https://lore.kernel.org/r/20230329154235.615349-3-brenda.streiff%40ni.com patch subject: [PATCH tty-next 2/2] serial: 8250: add driver for NI UARTs config: powerpc-allyesconfig (https://download.01.org/0day-ci/archive/20230330/202303301456.qfo36qC0-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7) 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 # install powerpc cross compiling tool for clang build # apt-get install binutils-powerpc-linux-gnu # https://github.com/intel-lab-lkp/linux/commit/6c50983e6760b2db288e3f8b7254cea537c0f052 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Brenda-Streiff/serial-8250-add-driver-for-NI-UARTs/20230330-010726 git checkout 6c50983e6760b2db288e3f8b7254cea537c0f052 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=powerpc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/tty/serial/8250/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303301456.qfo36qC0-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/tty/serial/8250/8250_ni.c:423:36: warning: unused variable 'ni16550_acpi_match' [-Wunused-const-variable] static const struct acpi_device_id ni16550_acpi_match[] = { ^ 1 warning generated. vim +/ni16550_acpi_match +423 drivers/tty/serial/8250/8250_ni.c 422 > 423 static const struct acpi_device_id ni16550_acpi_match[] = { 424 { "NIC7750", (kernel_ulong_t)&nic7750 }, 425 { "NIC7772", (kernel_ulong_t)&nic7772 }, 426 { "NIC792B", (kernel_ulong_t)&nic792b }, 427 { "NIC7A69", (kernel_ulong_t)&nic7a69 }, 428 { }, 429 }; 430 MODULE_DEVICE_TABLE(acpi, ni16550_acpi_match); 431 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
