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Subject[PATCH v3 5/7] perf test: Provide a subtest callback to ask for the reason for skipping a subtest
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Now subtests can inform why a test was skipped. The upcoming patch
improvint PMU event metric testing will use it.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20200513212933.41273-1-irogers@google.com
[ split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/tests/builtin-test.c | 11 +++++++++--
tools/perf/tests/tests.h | 1 +
2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 3471ec52ea11..baee735e6aa5 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -429,8 +429,15 @@ static int test_and_print(struct test *t, bool force_skip, int subtest)
case TEST_OK:
pr_info(" Ok\n");
break;
- case TEST_SKIP:
- color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n");
+ case TEST_SKIP: {
+ const char *skip_reason = NULL;
+ if (t->subtest.skip_reason)
+ skip_reason = t->subtest.skip_reason(subtest);
+ if (skip_reason)
+ color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (%s)\n", skip_reason);
+ else
+ color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n");
+ }
break;
case TEST_FAIL:
default:
diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h
index d6d4ac34eeb7..88e45aeab94f 100644
--- a/tools/perf/tests/tests.h
+++ b/tools/perf/tests/tests.h
@@ -34,6 +34,7 @@ struct test {
bool skip_if_fail;
int (*get_nr)(void);
const char *(*get_desc)(int subtest);
+ const char *(*skip_reason)(int subtest);
} subtest;
bool (*is_supported)(void);
void *priv;
--
2.26.2.761.g0e0b3e54be-goog
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