On Thu, Apr 22, 2021 at 3:20 AM kernel test robot <lkp@xxxxxxxxx> wrote: > I love your patch! Perhaps something to improve: > > [auto build test WARNING on tty/tty-testing] > [also build test WARNING on usb/usb-testing v5.12-rc8 next-20210421] > [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] > > url: https://github.com/0day-ci/linux/commits/Johan-Hovold/serial-extend-compile-test-coverage/20210421-234950 > base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing > config: x86_64-randconfig-a014-20210421 (attached as .config) > compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project d87b9b81ccb95217181ce75515c6c68bbb408ca4) > 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 x86_64 cross compiling tool for clang build > # apt-get install binutils-x86-64-linux-gnu > # https://github.com/0day-ci/linux/commit/c010530fa587261662c6abdb59ade994645dcfa8 > git remote add linux-review https://github.com/0day-ci/linux > git fetch --no-tags linux-review Johan-Hovold/serial-extend-compile-test-coverage/20210421-234950 > git checkout c010530fa587261662c6abdb59ade994645dcfa8 > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=x86_64 > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > All warnings (new ones prefixed by >>): > > >> drivers/tty/serial/serial_txx9.c:987:12: warning: no previous prototype for function 'early_serial_txx9_setup' [-Wmissing-prototypes] > int __init early_serial_txx9_setup(struct uart_port *port) > ^ > drivers/tty/serial/serial_txx9.c:987:1: note: declare 'static' if the function is not intended to be used outside of this translation unit > int __init early_serial_txx9_setup(struct uart_port *port) > ^ > static > 1 warning generated. This function is called from arch/mips/txx9/generic/setup.c, and does have a forward declaration in arch/mips/include/asm/txx9/generic.h. Unfortunately the latter cannot be included from the driver, unless the || COMPILE_TEST is dropped again. Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
