Hi Guangbin, [FYI, it's a private test report for your RFC patch.] [auto build test WARNING on v5.10] [cannot apply to net-next/master net/master linus/master sparc-next/master v5.11-rc1 next-20201223] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Guangbin-Huang/net-hns3-debugfs-... base: 2c85ebc57b3e1817b6ce1a6b703928e113a90442 config: arc-allyesconfig (attached as .config) compiler: arceb-elf-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://github.com/0day-ci/linux/commit/6803a8cc977f24a0da7ebc14ef97f87b8... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Guangbin-Huang/net-hns3-debugfs-add-dump-tm-info-of-nodes-priority-and-qset/20201231-170940 git checkout 6803a8cc977f24a0da7ebc14ef97f87b85fa56cc # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): 1776 | int hclge_dbg_read_cmd_tm(struct hnae3_handle *handle, const char *cmd_buf, | ^~~~~~~~~~~~~~~~~~~~~ vim +/hclge_dbg_read_cmd_tm +1776 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c 1775 1777 char *buf, int len) 1778 { 1779 #define DUMP_TM_NODE "dump nodes" 1780 #define DUMP_TM_PRI "dump priority" 1781 #define DUMP_TM_QSET "dump qset" 1782 1783 struct hclge_vport *vport = hclge_get_vport(handle); 1784 struct hclge_dev *hdev = vport->back; 1785 1786 if (strncmp(cmd_buf, DUMP_TM_NODE, strlen(DUMP_TM_NODE)) == 0) 1787 hclge_dbg_dump_tm_nodes(hdev, buf, len); 1788 else if (strncmp(cmd_buf, DUMP_TM_PRI, strlen(DUMP_TM_PRI)) == 0) 1789 hclge_dbg_dump_tm_pri(hdev, &cmd_buf[sizeof(DUMP_TM_PRI)], 1790 buf, len); 1791 else if (strncmp(cmd_buf, DUMP_TM_QSET, strlen(DUMP_TM_QSET)) == 0) 1792 hclge_dbg_dump_tm_qset(hdev, &cmd_buf[sizeof(DUMP_TM_QSET)], 1793 buf, len); 1794 else 1795 return -EINVAL; 1796 1797 return 0; 1798 } 1799 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org