Hi Joe, [FYI, it's a private test report for your RFC patch.] [auto build test WARNING on shuah-kselftest/next] [also build test WARNING on linux/master masahiroy-kbuild/for-next linus/master v5.17-rc4] [cannot apply to next-20220216] [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/Joe-Lawrence/livepatch-klp-conve... base: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git next config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20220217/202202170852.PMAObvOm-lk...) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/0050faf33dc7bb450c8c62ac3dd69ee8d... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Joe-Lawrence/livepatch-klp-convert-tool/20220217-004100 git checkout 0050faf33dc7bb450c8c62ac3dd69ee8dc7d0f9b # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash lib/livepatch/ 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 >>): 20 | void print_saved_command_line(void) | ^~~~~~~~~~~~~~~~~~~~~~~~ 26 | void print_saved_command_line2(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~ 33 | void print_saved_command_line3(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~ 47 | void print_via_function_pointers(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/print_saved_command_line +20 lib/livepatch/test_klp_convert_sections.c 13 14 /* 15 * Scatter references to the same symbol (saved_command_line) across a 16 * few different ELF sections. At the same time, include multiple 17 * references within the same function. 18 */ 19 __section(".text.print_saved_command_line") 21 { 22 pr_info("saved_command_line (1): %s\n", saved_command_line); 23 } 24 25 __section(".text.print_saved_command_line2") 27 { 28 pr_info("saved_command_line (1): %s\n", saved_command_line); 29 pr_info("saved_command_line (2): %s\n", saved_command_line); 30 } 31 32 __section(".text.print_saved_command_line3") 34 { 35 pr_info("saved_command_line (1): %s\n", saved_command_line); 36 pr_info("saved_command_line (2): %s\n", saved_command_line); 37 pr_info("saved_command_line (3): %s\n", saved_command_line); 38 } 39 40 /* 41 * Create relocations in .rela.data that need conversion, sharing 42 * symbols with ordinary .text relas. 43 */ 44 const char *(*p_test_klp_get_driver_name)(void) = test_klp_get_driver_name; 45 const char *(*p_get_homonym_string)(void) = get_homonym_string; 46 48 { 49 pr_info("test_klp_get_driver_name(): %s\n", test_klp_get_driver_name()); 50 pr_info("p_test_klp_get_driver_name(): %s\n", p_test_klp_get_driver_name()); 51 pr_info("get_homonym_string(): %s\n", get_homonym_string()); 52 pr_info("p_get_homonym_string(): %s\n", p_get_homonym_string()); 53 } 54 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org