Re: [PATCH v3 06/22] perf test: Use pointer for maps

[Arnaldo Carvalho de Melo]

Em Mon, Feb 14, 2022 at 04:48:35PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Fri, Feb 11, 2022 at 02:33:59AM -0800, Ian Rogers escreveu:
> > struct maps is reference counted, using a pointer is more idiomatic.
> > 
> > Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
> > ---
> >  tools/perf/tests/maps.c | 20 ++++++++++----------
> >  1 file changed, 10 insertions(+), 10 deletions(-)
> > 
> > diff --git a/tools/perf/tests/maps.c b/tools/perf/tests/maps.c
> > index e308a3296cef..6f53f17f788e 100644
> > --- a/tools/perf/tests/maps.c
> > +++ b/tools/perf/tests/maps.c
> > @@ -35,7 +35,7 @@ static int check_maps(struct map_def *merged, unsigned int size, struct maps *ma
> >  
> >  static int test__maps__merge_in(struct test_suite *t __maybe_unused, int subtest __maybe_unused)
> >  {
> > -	struct maps maps;
> > +	struct maps *maps;
> >  	unsigned int i;
> >  	struct map_def bpf_progs[] = {
> >  		{ "bpf_prog_1", 200, 300 },
> > @@ -64,7 +64,7 @@ static int test__maps__merge_in(struct test_suite *t __maybe_unused, int subtest
> >  	struct map *map_kcore1, *map_kcore2, *map_kcore3;
> >  	int ret;
> >  
> > -	maps__init(&maps, NULL);
> > +	maps = maps__new(NULL);
> 
> Now that is dynamicly allocated we need to check for the constructor
> result, I'm fixing this up.

I.e. added this:

diff --git a/tools/perf/tests/maps.c b/tools/perf/tests/maps.c
index 6f53f17f788e7dd7..a69988a89d265211 100644
--- a/tools/perf/tests/maps.c
+++ b/tools/perf/tests/maps.c
@@ -35,7 +35,6 @@ static int check_maps(struct map_def *merged, unsigned int size, struct maps *ma
 
 static int test__maps__merge_in(struct test_suite *t __maybe_unused, int subtest __maybe_unused)
 {
-	struct maps *maps;
 	unsigned int i;
 	struct map_def bpf_progs[] = {
 		{ "bpf_prog_1", 200, 300 },
@@ -63,8 +62,9 @@ static int test__maps__merge_in(struct test_suite *t __maybe_unused, int subtest
 	};
 	struct map *map_kcore1, *map_kcore2, *map_kcore3;
 	int ret;
+	struct maps *maps = maps__new(NULL);
 
-	maps = maps__new(NULL);
+	TEST_ASSERT_VAL("failed to create maps", maps);
 
 	for (i = 0; i < ARRAY_SIZE(bpf_progs); i++) {
 		struct map *map;