Hi Arnaldo, kernel test robot noticed the following build warnings: [auto build test WARNING on bpf-next/master] [also build test WARNING on bpf/master linus/master v6.7 next-20240111] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Arnaldo-Carvalho-de-Melo/bpftool-Add-missing-libgen-h-for-basename/20240104-110542 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master patch link: https://lore.kernel.org/r/ZZYgMYmb_qE94PUB%40kernel.org patch subject: [PATCH] bpftool: Add missing libgen.h for basename() compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240112/202401121009.hCPmwMe6-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202401121009.hCPmwMe6-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): Makefile.config:1153: libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev PERF_VERSION = 6.7.rc6.ge6bdf4fd535b gen.c: In function 'get_obj_name': >> gen.c:61:32: warning: passing argument 1 of '__xpg_basename' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 61 | strncpy(name, basename(file), MAX_OBJ_NAME_LEN - 1); | ^~~~ In file included from gen.c:10: /usr/include/libgen.h:34:36: note: expected 'char *' but argument is of type 'const char *' 34 | extern char *__xpg_basename (char *__path) __THROW; | ~~~~~~^~~~~~ -- gen.c: In function 'get_obj_name': >> gen.c:61:32: warning: passing argument 1 of '__xpg_basename' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 61 | strncpy(name, basename(file), MAX_OBJ_NAME_LEN - 1); | ^~~~ In file included from gen.c:10: /usr/include/libgen.h:34:36: note: expected 'char *' but argument is of type 'const char *' 34 | extern char *__xpg_basename (char *__path) __THROW; | ~~~~~~^~~~~~ gen.c: In function 'get_obj_name': >> gen.c:61:32: warning: passing argument 1 of '__xpg_basename' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 61 | strncpy(name, basename(file), MAX_OBJ_NAME_LEN - 1); | ^~~~ In file included from gen.c:10: /usr/include/libgen.h:34:36: note: expected 'char *' but argument is of type 'const char *' 34 | extern char *__xpg_basename (char *__path) __THROW; | ~~~~~~^~~~~~ gen.c: In function 'get_obj_name': >> gen.c:61:32: warning: passing argument 1 of '__xpg_basename' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 61 | strncpy(name, basename(file), MAX_OBJ_NAME_LEN - 1); | ^~~~ In file included from gen.c:10: /usr/include/libgen.h:34:36: note: expected 'char *' but argument is of type 'const char *' 34 | extern char *__xpg_basename (char *__path) __THROW; | ~~~~~~^~~~~~ -- gen.c: In function 'get_obj_name': >> gen.c:61:32: warning: passing argument 1 of '__xpg_basename' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 61 | strncpy(name, basename(file), MAX_OBJ_NAME_LEN - 1); | ^~~~ In file included from gen.c:10: /usr/include/libgen.h:34:36: note: expected 'char *' but argument is of type 'const char *' 34 | extern char *__xpg_basename (char *__path) __THROW; | ~~~~~~^~~~~~ -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki