Compiling sigaltstack selftest after adding a __printf() attribute to ksft_print_msg() exposes -Wformat warning in main(). The format specifier inside ksft_print_msg() expects a long unsigned int but the passed variable is of unsigned int type. Fix the format specifier so it matches the passed variable. Signed-off-by: Maciej Wieczor-Retman <maciej.wieczor-retman@xxxxxxxxx> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx> --- Changelog v6: - Add an explanation to the patch message on how the warning that the patch resolves was caught. (Shuah) Changelog v2: - Add Reviewed-by tag (Ilpo) tools/testing/selftests/sigaltstack/sas.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/sigaltstack/sas.c b/tools/testing/selftests/sigaltstack/sas.c index 98d37cb744fb..07227fab1cc9 100644 --- a/tools/testing/selftests/sigaltstack/sas.c +++ b/tools/testing/selftests/sigaltstack/sas.c @@ -111,7 +111,7 @@ int main(void) /* Make sure more than the required minimum. */ stack_size = getauxval(AT_MINSIGSTKSZ) + SIGSTKSZ; - ksft_print_msg("[NOTE]\tthe stack size is %lu\n", stack_size); + ksft_print_msg("[NOTE]\tthe stack size is %u\n", stack_size); ksft_print_header(); ksft_set_plan(3); -- 2.42.0