From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 14 Oct 2022 17:09:01 +0000 (+0300)
Subject: perf test: test_intel_pt.sh: Print a message when skipping kernel tracing
X-Git-Tag: baikal/aarch64/sdk6.1~2811^2~13
X-Git-Url: https://git.baikalelectronics.ru/sdk/?a=commitdiff_plain;h=6f95ebea5264a2871aad5c6e8cb37608df81e5af;p=kernel.git

perf test: test_intel_pt.sh: Print a message when skipping kernel tracing

Messages display with the perf test -v option. Add a message to show when
skipping a test because the user cannot do kernel tracing.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20221014170905.64069-4-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---

diff --git a/tools/perf/tests/shell/test_intel_pt.sh b/tools/perf/tests/shell/test_intel_pt.sh
index 334836f92bdc6..9c746ff1c4d24 100755
--- a/tools/perf/tests/shell/test_intel_pt.sh
+++ b/tools/perf/tests/shell/test_intel_pt.sh
@@ -117,7 +117,14 @@ test_system_wide_side_band()
 
 can_kernel()
 {
-	perf_record_no_decode -o "${tmpfile}" -e dummy:k true >/dev/null 2>&1 || return 2
+	if [ -z "${can_kernel_trace}" ] ; then
+		can_kernel_trace=0
+		perf_record_no_decode -o "${tmpfile}" -e dummy:k true >/dev/null 2>&1 && can_kernel_trace=1
+	fi
+	if [ ${can_kernel_trace} -eq 0 ] ; then
+		echo "SKIP: no kernel tracing"
+		return 2
+	fi
 	return 0
 }