On 6/30/21 10:34 AM, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > head: 007b350a58754a93ca9fe50c498cc27780171153 > commit: c9aa973884a163ecb6d5d4d3be9137058adcaf8c media: atmel: atmel-isc: add microchip-xisc driver > date: 3 weeks ago > config: nios2-randconfig-r035-20210630 (attached as .config) > compiler: nios2-linux-gcc (GCC) 9.3.0 > 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 > # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c9aa973884a163ecb6d5d4d3be9137058adcaf8c > git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > git fetch --no-tags linus master > git checkout c9aa973884a163ecb6d5d4d3be9137058adcaf8c > # save the attached .config to linux build tree > mkdir build_dir > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross O=build_dir ARCH=nios2 SHELL=/bin/bash > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > All errors (new ones prefixed by >>): > > nios2-linux-ld: drivers/media/platform/atmel/atmel-isc-base.o: in function `isc_async_complete': > atmel-isc-base.c:(.text+0x279c): undefined reference to `__this_module' >>> nios2-linux-ld: atmel-isc-base.c:(.text+0x27c4): undefined reference to `__this_module' >>> nios2-linux-ld: drivers/media/platform/atmel/atmel-isc-base.o:(.rodata+0x414): undefined reference to `__this_module' >>> nios2-linux-ld: drivers/media/platform/atmel/atmel-isc-base.o:(__param+0x4): undefined reference to `__this_module' > nios2-linux-ld: drivers/media/platform/atmel/atmel-isc-base.o:(__param+0x18): undefined reference to `__this_module' > > --- > 0-DAY CI Kernel Test Service, Intel Corporation > https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx > Hello Hans, Could you please help me to solve this ? The cause is that both the XISC and the ISC have the common file atmel-isc-base.c and building one as a module and the other as built-in is problematic , as atmel-isc-base.o is only built once. One solution is to enforce the other as a module if one of them is selected as a module. Do you know how I can do that ? Thanks, Eugen
