linux-kernel - [PATCH v2 2/5] perf test trace_btf_enum: Skip if permissions are insufficient

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Message-ID: <20250821163820.1132977-3-irogers@google.com>
Date: Thu, 21 Aug 2025 09:38:16 -0700
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
	Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>, 
	Mark Rutland <mark.rutland@....com>, 
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, 
	Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, 
	Kan Liang <kan.liang@...ux.intel.com>, Chun-Tse Shao <ctshao@...gle.com>, 
	Blake Jones <blakejones@...gle.com>, James Clark <james.clark@...aro.org>, 
	Jan Polensky <japo@...ux.ibm.com>, Collin Funk <collin.funk1@...il.com>, 
	Howard Chu <howardchu95@...il.com>, Thomas Gleixner <tglx@...utronix.de>, 
	Nam Cao <namcao@...utronix.de>, Li Huafei <lihuafei1@...wei.com>, 
	"Steinar H. Gunderson" <sesse@...gle.com>, Athira Rajeev <atrajeev@...ux.ibm.com>, 
	linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/5] perf test trace_btf_enum: Skip if permissions are insufficient

Modify test behavior to skip if BPF calls fail with "Operation not
permitted".

Fixes: d66763fed30f ("perf test trace_btf_enum: Add regression test for the BTF augmentation of enums in 'perf trace'")
Signed-off-by: Ian Rogers <irogers@...gle.com>
Acked-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/tests/shell/trace_btf_enum.sh | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/tools/perf/tests/shell/trace_btf_enum.sh b/tools/perf/tests/shell/trace_btf_enum.sh
index 572001d75d78..03e9f680a4a6 100755
--- a/tools/perf/tests/shell/trace_btf_enum.sh
+++ b/tools/perf/tests/shell/trace_btf_enum.sh
@@ -23,6 +23,14 @@ check_vmlinux() {
   fi
 }
 
+check_permissions() {
+  if perf trace -e $syscall $TESTPROG 2>&1 | grep -q "Operation not permitted"
+  then
+    echo "trace+enum test [Skipped permissions]"
+    err=2
+  fi
+}
+
 trace_landlock() {
   echo "Tracing syscall ${syscall}"
 
@@ -56,6 +64,9 @@ trace_non_syscall() {
 }
 
 check_vmlinux
+if [ $err = 0 ]; then
+  check_permissions
+fi
 
 if [ $err = 0 ]; then
   trace_landlock
-- 
2.51.0.rc1.193.gad69d77794-goog