No problem! Let me update and resend. On Thu, Sep 3, 2020 at 11:50 AM Andrii Nakryiko <andrii.nakryiko@xxxxxxxxx> wrote: > > On Thu, Sep 3, 2020 at 11:02 AM Hao Luo <haoluo@xxxxxxxxxx> wrote: > > > > The returned value of bpf_object__open_file() should be checked with > > IS_ERR() rather than NULL. This fix makes test_progs not crash when > > test_global_data.o is not present. > > > > Signed-off-by: Hao Luo <haoluo@xxxxxxxxxx> > > --- > > tools/testing/selftests/bpf/prog_tests/global_data_init.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/tools/testing/selftests/bpf/prog_tests/global_data_init.c b/tools/testing/selftests/bpf/prog_tests/global_data_init.c > > index 3bdaa5a40744..1ece86d5c519 100644 > > --- a/tools/testing/selftests/bpf/prog_tests/global_data_init.c > > +++ b/tools/testing/selftests/bpf/prog_tests/global_data_init.c > > @@ -12,7 +12,7 @@ void test_global_data_init(void) > > size_t sz; > > > > obj = bpf_object__open_file(file, NULL); > > - if (CHECK_FAIL(!obj)) > > + if (CHECK_FAIL(IS_ERR(obj))) > > Can you please use libbpf_get_error(obj) instead to set a good example > or not relying on kernel internal macros? > > > return; > > > > map = bpf_object__find_map_by_name(obj, "test_glo.rodata"); > > -- > > 2.28.0.402.g5ffc5be6b7-goog > >
