linux-kernel - [PATCH] Revert "test_bpf: flag tests that cannot be jited on s390"

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Date:   Thu, 16 Jul 2020 09:39:31 -0500
From:   Seth Forshee <seth.forshee@...onical.com>
To:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        Andrii Nakryiko <andriin@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...omium.org>,
        Ilya Leoshkevich <iii@...ux.ibm.com>
Cc:     netdev@...r.kernel.org, bpf@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] Revert "test_bpf: flag tests that cannot be jited on s390"

This reverts commit 3203c9010060806ff88c9989aeab4dc8d9a474dc.

The s390 bpf JIT previously had a restriction on the maximum
program size, which required some tests in test_bpf to be flagged
as expected failures. The program size limitation has been removed,
and the tests now pass, so these tests should no longer be flagged.

Fixes: d1242b10ff03 ("s390/bpf: Remove JITed image size limitations")
Signed-off-by: Seth Forshee <seth.forshee@...onical.com>
---
 lib/test_bpf.c | 20 --------------------
 1 file changed, 20 deletions(-)

diff --git a/lib/test_bpf.c b/lib/test_bpf.c
index a5fddf9ebcb7..ca7d635bccd9 100644
--- a/lib/test_bpf.c
+++ b/lib/test_bpf.c
@@ -5275,31 +5275,21 @@ static struct bpf_test tests[] = {
 	{	/* Mainly checking JIT here. */
 		"BPF_MAXINSNS: Ctx heavy transformations",
 		{ },
-#if defined(CONFIG_BPF_JIT_ALWAYS_ON) && defined(CONFIG_S390)
-		CLASSIC | FLAG_EXPECTED_FAIL,
-#else
 		CLASSIC,
-#endif
 		{ },
 		{
 			{  1, SKB_VLAN_PRESENT },
 			{ 10, SKB_VLAN_PRESENT }
 		},
 		.fill_helper = bpf_fill_maxinsns6,
-		.expected_errcode = -ENOTSUPP,
 	},
 	{	/* Mainly checking JIT here. */
 		"BPF_MAXINSNS: Call heavy transformations",
 		{ },
-#if defined(CONFIG_BPF_JIT_ALWAYS_ON) && defined(CONFIG_S390)
-		CLASSIC | FLAG_NO_DATA | FLAG_EXPECTED_FAIL,
-#else
 		CLASSIC | FLAG_NO_DATA,
-#endif
 		{ },
 		{ { 1, 0 }, { 10, 0 } },
 		.fill_helper = bpf_fill_maxinsns7,
-		.expected_errcode = -ENOTSUPP,
 	},
 	{	/* Mainly checking JIT here. */
 		"BPF_MAXINSNS: Jump heavy test",
@@ -5350,28 +5340,18 @@ static struct bpf_test tests[] = {
 	{
 		"BPF_MAXINSNS: exec all MSH",
 		{ },
-#if defined(CONFIG_BPF_JIT_ALWAYS_ON) && defined(CONFIG_S390)
-		CLASSIC | FLAG_EXPECTED_FAIL,
-#else
 		CLASSIC,
-#endif
 		{ 0xfa, 0xfb, 0xfc, 0xfd, },
 		{ { 4, 0xababab83 } },
 		.fill_helper = bpf_fill_maxinsns13,
-		.expected_errcode = -ENOTSUPP,
 	},
 	{
 		"BPF_MAXINSNS: ld_abs+get_processor_id",
 		{ },
-#if defined(CONFIG_BPF_JIT_ALWAYS_ON) && defined(CONFIG_S390)
-		CLASSIC | FLAG_EXPECTED_FAIL,
-#else
 		CLASSIC,
-#endif
 		{ },
 		{ { 1, 0xbee } },
 		.fill_helper = bpf_fill_ld_abs_get_processor_id,
-		.expected_errcode = -ENOTSUPP,
 	},
 	/*
 	 * LD_IND / LD_ABS on fragmented SKBs
-- 
2.27.0