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From a7783676c60dd90a6f4c26bcb9be03dc5703b74e Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Mon, 13 Apr 2020 11:25:32 -0700
Subject: [PATCH 1/2] Revert "selftests/bpf: Skip perf hw events test if the
setup disabled it"
This reverts commit da43712a7262891317883d4b3a909fb18dac4b1d.
---
.../selftests/bpf/prog_tests/stacktrace_build_id_nmi.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c b/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c
index 1735faf17536..f62aa0eb959b 100644
--- a/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c
+++ b/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c
@@ -49,12 +49,8 @@ void test_stacktrace_build_id_nmi(void)
pmu_fd = syscall(__NR_perf_event_open, &attr, -1 /* pid */,
0 /* cpu 0 */, -1 /* group id */,
0 /* flags */);
- if (pmu_fd < 0 && errno == ENOENT) {
- printf("%s:SKIP:no PERF_COUNT_HW_CPU_CYCLES\n", __func__);
- test__skip();
- goto cleanup;
- }
- if (CHECK(pmu_fd < 0, "perf_event_open", "err %d errno %d\n",
+ if (CHECK(pmu_fd < 0, "perf_event_open",
+ "err %d errno %d. Does the test host support PERF_COUNT_HW_CPU_CYCLES?\n",
pmu_fd, errno))
goto close_prog;
--
2.26.0
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