Hi DENG, Thank you for the patch! Yet something to improve: [auto build test ERROR on net-next/master] [also build test ERROR on net/master linus/master v5.7-rc1 next-20200413] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/DENG-Qingfang/net-dsa-mt7530-fix... base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 7f80ccfe996871ca69648efee74a60ae7ad0dcd9 config: m68k-allmodconfig (attached as .config) compiler: m68k-linux-gcc (GCC) 9.3.0 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=9.3.0 make.cross ARCH=m68k If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from drivers/net/dsa/mt7530.c:23: 181 | MT7530_VLAN_EG_DISABLED = 0; | ^ drivers/net/dsa/mt7530.c: In function 'mt7530_port_set_vlan_unaware': 851 | PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT)); | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/dsa/mt7530.h:175:29: note: in definition of macro 'PVC_EG_TAG' 175 | #define PVC_EG_TAG(x) (((x) & 0x7) << 8) | ^ drivers/net/dsa/mt7530.c:851:17: note: each undeclared identifier is reported only once for each function it appears in 851 | PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT)); | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/dsa/mt7530.h:175:29: note: in definition of macro 'PVC_EG_TAG' 175 | #define PVC_EG_TAG(x) (((x) & 0x7) << 8) | ^ drivers/net/dsa/mt7530.c: In function 'mt7530_setup': drivers/net/dsa/mt7530.c:1388:18: error: 'MT7530_VLAN_EG_CONSISTENT' undeclared (first use in this function); did you mean 'MT7530_VLAN_TRANSPARENT'? 1388 | PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT)); | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/dsa/mt7530.h:175:29: note: in definition of macro 'PVC_EG_TAG' 175 | #define PVC_EG_TAG(x) (((x) & 0x7) << 8) | ^ vim +181 drivers/net/dsa/mt7530.h 179 180 enum mt7530_vlan_port_eg_tag { 182 MT7530_VLAN_EG_CONSISTENT = 1; 183 }; 184 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org