Merge branch 'test_progs-stdio'

Stanislav Fomichev says:

====================
I was looking into converting test_sockops* to test_progs framework
and that requires using cgroup_helpers.c which rely on stdio/stderr.
Let's use open_memstream to override stdout into buffer during
subtests instead of custom test_{v,}printf wrappers. That lets
us continue to use stdio in the subtests and dump it on failure
if required.

That would also fix bpf_find_map which currently uses printf to
signal failure (missed during test_printf conversion).
====================

Signed-off-by: Alexei Starovoitov <ast@kernel.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/tools/testing/selftests/bpf/prog_tests/send_signal.c b/tools/testing/selftests/bpf/prog_tests/send_signal.c
index 461b423d0584..1575f0a1f586 100644
--- a/tools/testing/selftests/bpf/prog_tests/send_signal.c
+++ b/tools/testing/selftests/bpf/prog_tests/send_signal.c
@@ -202,8 +202,8 @@ static int test_send_signal_nmi(void)
                          -1 /* cpu */, -1 /* group_fd */, 0 /* flags */);
         if (pmu_fd == -1) {
                 if (errno == ENOENT) {
-                        test__printf("%s:SKIP:no PERF_COUNT_HW_CPU_CYCLES\n",
-                                     __func__);
+                        printf("%s:SKIP:no PERF_COUNT_HW_CPU_CYCLES\n",
+                               __func__);
                         return 0;
                 }
                 /* Let the test fail with a more informative message */