From: Cristian Marussi cristian.marussi@arm.com

[ Upstream commit e051cdf655fa016692008a446a060eff06222bb5 ]

In E_func() macro, on error, print also errno in order to aid debugging.

Cc: Aleksa Sarai cyphar@cyphar.com Signed-off-by: Cristian Marussi cristian.marussi@arm.com Signed-off-by: Shuah Khan skhan@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- tools/testing/selftests/openat2/helpers.h | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/tools/testing/selftests/openat2/helpers.h b/tools/testing/selftests/openat2/helpers.h index a6ea27344db2d..ad5d0ba5b6ce9 100644 --- a/tools/testing/selftests/openat2/helpers.h +++ b/tools/testing/selftests/openat2/helpers.h @@ -62,11 +62,12 @@ bool needs_openat2(const struct open_how *how); (similar to chroot(2)). */ #endif /* RESOLVE_IN_ROOT */

-#define E_func(func, ...) \ - do { \ - if (func(__VA_ARGS__) < 0) \ - ksft_exit_fail_msg("%s:%d %s failed\n", \ - __FILE__, __LINE__, #func);\ +#define E_func(func, ...) \ + do { \ + errno = 0; \ + if (func(__VA_ARGS__) < 0) \ + ksft_exit_fail_msg("%s:%d %s failed - errno:%d\n", \ + __FILE__, __LINE__, #func, errno); \ } while (0)

#define E_asprintf(...) E_func(asprintf, __VA_ARGS__)