diff options
| author | Martin KaFai Lau <kafai@fb.com> | 2018-12-12 19:18:22 +0100 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2018-12-13 12:16:31 +0100 |
| commit | 177e77169b0b71587c74382d5f2207a16da34790 (patch) | |
| tree | da39631926f29fbb7dd194f2b87c949631f5ebe8 | |
| parent | bpf: Remove bpf_dump_raw_ok() check for func_info and line_info (diff) | |
| download | linux-177e77169b0b71587c74382d5f2207a16da34790.tar.xz linux-177e77169b0b71587c74382d5f2207a16da34790.zip | |
bpf: Remove !func_info and !line_info check from test_btf and bpftool
kernel can provide the func_info and line_info even
it fails the btf_dump_raw_ok() test because they don't contain
kernel address. This patch removes the corresponding '== 0'
test.
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
| -rw-r--r-- | tools/bpf/bpftool/prog.c | 7 | ||||
| -rw-r--r-- | tools/lib/bpf/bpf_prog_linfo.c | 6 | ||||
| -rw-r--r-- | tools/testing/selftests/bpf/test_btf.c | 7 |
3 files changed, 1 insertions, 19 deletions
diff --git a/tools/bpf/bpftool/prog.c b/tools/bpf/bpftool/prog.c index eddf7fba41c6..ee51279be9c7 100644 --- a/tools/bpf/bpftool/prog.c +++ b/tools/bpf/bpftool/prog.c @@ -596,13 +596,6 @@ static int do_dump(int argc, char **argv) goto err_free; } - if (func_info && !info.func_info) { - /* kernel.kptr_restrict is set. No func_info available. */ - free(func_info); - func_info = NULL; - nr_finfo = 0; - } - if (linfo && info.nr_line_info != nr_linfo) { p_err("incorrect nr_line_info %u vs. expected %u", info.nr_line_info, nr_linfo); diff --git a/tools/lib/bpf/bpf_prog_linfo.c b/tools/lib/bpf/bpf_prog_linfo.c index addd6e9971cc..6978314ea7f6 100644 --- a/tools/lib/bpf/bpf_prog_linfo.c +++ b/tools/lib/bpf/bpf_prog_linfo.c @@ -107,11 +107,7 @@ struct bpf_prog_linfo *bpf_prog_linfo__new(const struct bpf_prog_info *info) nr_linfo = info->nr_line_info; - /* - * Test !info->line_info because the kernel may NULL - * the ptr if kernel.kptr_restrict is set. - */ - if (!nr_linfo || !info->line_info) + if (!nr_linfo) return NULL; /* diff --git a/tools/testing/selftests/bpf/test_btf.c b/tools/testing/selftests/bpf/test_btf.c index f570e0a39959..8478316aaf9a 100644 --- a/tools/testing/selftests/bpf/test_btf.c +++ b/tools/testing/selftests/bpf/test_btf.c @@ -3948,12 +3948,6 @@ static int test_get_finfo(const struct prog_info_raw_test *test, goto done; } - if (CHECK(!info.func_info, - "info.func_info == 0. kernel.kptr_restrict is set?")) { - err = -1; - goto done; - } - finfo = func_info; for (i = 0; i < test->func_info_cnt; i++) { if (CHECK(finfo->type_id != test->func_info[i][1], @@ -4077,7 +4071,6 @@ static int test_get_linfo(const struct prog_info_raw_test *test, * Other fields are not the concern of this test. */ if (CHECK(err == -1 || - !info.line_info || info.nr_line_info != cnt || (jited_cnt && !info.jited_line_info) || info.nr_jited_line_info != jited_cnt || |