test_bpf: Fix testing with CONFIG_BPF_JIT_ALWAYS_ON=y on other arches

[ Upstream commit 52fda36d63bfc8c8e8ae5eda8eb5ac6f52cd67ed ]

Function bpf_fill_maxinsns11 is designed to not be able to be JITed on
x86_64. So, it fails when CONFIG_BPF_JIT_ALWAYS_ON=y, and
commit 09584b406742 ("bpf: fix selftests/bpf test_kmod.sh failure when
CONFIG_BPF_JIT_ALWAYS_ON=y") makes sure that failure is detected on that
case.

However, it does not fail on other architectures, which have a different
JIT compiler design. So, test_bpf has started to fail to load on those.

After this fix, test_bpf loads fine on both x86_64 and ppc64el.

Fixes: 09584b406742 ("bpf: fix selftests/bpf test_kmod.sh failure when CONFIG_BPF_JIT_ALWAYS_ON=y")
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Reviewed-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/lib/test_bpf.c b/lib/test_bpf.c
index 64701b4c99001b613a5c5aa8f3955f6fc5e989db..75ebf2bbc2eeb74313b559e4c94cc8cbb991a12f 100644 (file)
--- a/lib/test_bpf.c
+++ b/lib/test_bpf.c
@@ -5427,7 +5427,7 @@ static struct bpf_test tests[] = {
        {
                "BPF_MAXINSNS: Jump, gap, jump, ...",
                { },
-#ifdef CONFIG_BPF_JIT_ALWAYS_ON
+#if defined(CONFIG_BPF_JIT_ALWAYS_ON) && defined(CONFIG_X86)
                CLASSIC | FLAG_NO_DATA | FLAG_EXPECTED_FAIL,
 #else
                CLASSIC | FLAG_NO_DATA,