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X-BeenThere: linux-um@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-um" Errors-To: linux-um-bounces+linux-um=archiver.kernel.org@lists.infradead.org Hi Benjamin, kernel test robot noticed the following build warnings: [auto build test WARNING on uml/next] [also build test WARNING on uml/fixes shuah-kselftest/next shuah-kselftest/fixes linus/master v6.17-rc7 next-20250925] [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/Benjamin-Berg/tools-compiler-h-fix-__used-definition/20250924-222547 base: https://git.kernel.org/pub/scm/linux/kernel/git/uml/linux next patch link: https://lore.kernel.org/r/20250924142059.527768-10-benjamin%40sipsolutions.net patch subject: [PATCH v3 09/12] um: use nolibc for the --showconfig implementation :::::: branch date: 2 days ago :::::: commit date: 2 days ago config: um-randconfig-r111-20250926 (https://download.01.org/0day-ci/archive/20250926/202509261452.g5peaXCc-lkp@intel.com/config) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250926/202509261452.g5peaXCc-lkp@intel.com/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 | Closes: https://lore.kernel.org/r/202509261452.g5peaXCc-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) command-line: note: in included file (through tools/include/nolibc/nolibc.h, tools/include/nolibc/stddef.h, arch/um/include/shared/user.h, builtin): >> tools/include/nolibc/sys.h:109:29: sparse: sparse: Using plain integer as NULL pointer command-line: note: in included file (through tools/include/nolibc/nolibc.h, tools/include/nolibc/stddef.h, arch/um/include/shared/user.h, builtin): >> tools/include/nolibc/sys/reboot.h:31:16: sparse: sparse: Using plain integer as NULL pointer >> tools/include/nolibc/sys/reboot.h:31:16: sparse: sparse: Using plain integer as NULL pointer command-line: note: in included file (through tools/include/nolibc/nolibc.h, tools/include/nolibc/stddef.h, arch/um/include/shared/user.h, builtin): >> tools/include/nolibc/unistd.h:57:27: sparse: sparse: Using plain integer as NULL pointer tools/include/nolibc/unistd.h:57:30: sparse: sparse: Using plain integer as NULL pointer tools/include/nolibc/unistd.h:57:33: sparse: sparse: Using plain integer as NULL pointer tools/include/nolibc/unistd.h:70:27: sparse: sparse: Using plain integer as NULL pointer tools/include/nolibc/unistd.h:70:30: sparse: sparse: Using plain integer as NULL pointer tools/include/nolibc/unistd.h:70:33: sparse: sparse: Using plain integer as NULL pointer tools/include/nolibc/unistd.h:81:30: sparse: sparse: Using plain integer as NULL pointer tools/include/nolibc/unistd.h:81:33: sparse: sparse: Using plain integer as NULL pointer tools/include/nolibc/unistd.h:81:36: sparse: sparse: Using plain integer as NULL pointer command-line: note: in included file (through tools/include/nolibc/stdio.h, tools/include/nolibc/nolibc.h, tools/include/nolibc/stddef.h, ...): tools/include/nolibc/stdlib.h:56:6: sparse: sparse: symbol 'abort' redeclared with different type (different modifiers): tools/include/nolibc/stdlib.h:56:6: sparse: void extern [addressable] [noreturn] [toplevel] [unused] abort( ... ) tools/include/nolibc/stdlib.h:54:6: sparse: note: previously declared as: tools/include/nolibc/stdlib.h:54:6: sparse: void extern [addressable] [toplevel] abort( ... ) command-line: note: in included file (through tools/include/nolibc/nolibc.h, tools/include/nolibc/stddef.h, arch/um/include/shared/user.h, builtin): tools/include/nolibc/getopt.h:19:6: sparse: sparse: symbol 'optarg' was not declared. Should it be static? tools/include/nolibc/getopt.h:22:5: sparse: sparse: symbol 'optind' was not declared. Should it be static? tools/include/nolibc/getopt.h:22:17: sparse: sparse: symbol 'opterr' was not declared. Should it be static? tools/include/nolibc/getopt.h:22:29: sparse: sparse: symbol 'optopt' was not declared. Should it be static? >> tools/include/nolibc/getopt.h:81:26: sparse: sparse: Using plain integer as NULL pointer vim +109 tools/include/nolibc/sys.h bd8c8fbb866fe5 Willy Tarreau 2022-02-07 104 bd8c8fbb866fe5 Willy Tarreau 2022-02-07 105 static __attribute__((unused)) bd8c8fbb866fe5 Willy Tarreau 2022-02-07 106 void *sbrk(intptr_t inc) bd8c8fbb866fe5 Willy Tarreau 2022-02-07 107 { bd8c8fbb866fe5 Willy Tarreau 2022-02-07 108 /* first call to find current end */ 4201cfce15fe35 Zhangjin Wu 2023-07-07 @109 void *ret = sys_brk(0); 4201cfce15fe35 Zhangjin Wu 2023-07-07 110 4201cfce15fe35 Zhangjin Wu 2023-07-07 111 if (ret && sys_brk(ret + inc) == ret + inc) bd8c8fbb866fe5 Willy Tarreau 2022-02-07 112 return ret + inc; bd8c8fbb866fe5 Willy Tarreau 2022-02-07 113 fb01ff635efd0a Willy Tarreau 2023-08-15 114 SET_ERRNO(ENOMEM); fb01ff635efd0a Willy Tarreau 2023-08-15 115 return (void *)-1; bd8c8fbb866fe5 Willy Tarreau 2022-02-07 116 } bd8c8fbb866fe5 Willy Tarreau 2022-02-07 117 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki