On Sat, 11 Aug 2018 23:25:41 +0800 kbuild test robot <lkp@xxxxxxxxx> wrote: > Hi Parthiban, > > Thank you for the patch! Yet something to improve: The issue here is I think that you should be simply calling hweight8 rather than directly calling the fallback software version. I 'might' fix that up if it is the only issue known to remain. Thanks, Jonathan > > [auto build test ERROR on iio/togreg] > [also build test ERROR on v4.18-rc8 next-20180810] > [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] > > url: https://github.com/0day-ci/linux/commits/Parthiban-Nallathambi/iio-light-Add-support-for-vishay-vcnl4035/20180810-012903 > base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg > config: ia64-allmodconfig (attached as .config) > compiler: ia64-linux-gcc (GCC) 8.1.0 > reproduce: > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > # save the attached .config to linux build tree > GCC_VERSION=8.1.0 make.cross ARCH=ia64 > > All errors (new ones prefixed by >>): > > ERROR: "ia64_delay_loop" [drivers/spi/spi-thunderx.ko] undefined! > ERROR: "__sw_hweight8" [drivers/net/wireless/mediatek/mt76/mt76.ko] undefined! > ERROR: "ia64_delay_loop" [drivers/net/phy/mdio-cavium.ko] undefined! > >> ERROR: "__sw_hweight8" [drivers/iio/light/vcnl4035.ko] undefined! > > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation