Hi Stefan, I love your patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on next-20190718] [cannot apply to v5.2] [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/Stefan-Roese/net-ethernet-mediatek-Add-MT7628-88-SoC-support/20190719-020931 config: arm64-allmodconfig (attached as .config) compiler: aarch64-linux-gcc (GCC) 7.4.0 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=7.4.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot All warnings (new ones prefixed by >>): vim +649 drivers/net//ethernet/mediatek/mtk_eth_soc.c 646 647 static int txd_to_idx(struct mtk_tx_ring *ring, struct mtk_tx_dma *dma) 648 { > 649 return ((u32)dma - (u32)ring->dma) / sizeof(*dma); 650 } 651 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation