tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing head: 3a3d09a9ee0ef5b417d6bdf8486a4da2bef06dc3 commit: 3a3d09a9ee0ef5b417d6bdf8486a4da2bef06dc3 [19/19] serial: 8250: Apply FSL workarounds also without SERIAL_8250_CONSOLE config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20230602/202306021041.qbRZZenE-lkp@xxxxxxxxx/config) compiler: powerpc-linux-gcc (GCC) 12.3.0 reproduce (this is a W=1 build): mkdir -p ~/bin wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git/commit/?id=3a3d09a9ee0ef5b417d6bdf8486a4da2bef06dc3 git remote add tty https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git git fetch --no-tags tty tty-testing git checkout 3a3d09a9ee0ef5b417d6bdf8486a4da2bef06dc3 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=powerpc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202306021041.qbRZZenE-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): powerpc-linux-ld: arch/powerpc/kernel/legacy_serial.o: in function `serial_dev_init': >> legacy_serial.c:(.init.text+0x46a): undefined reference to `fsl8250_handle_irq' >> powerpc-linux-ld: legacy_serial.c:(.init.text+0x472): undefined reference to `fsl8250_handle_irq' -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki