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Commit 3203c901 authored by Kleber Sacilotto de Souza's avatar Kleber Sacilotto de Souza Committed by Daniel Borkmann
Browse files

test_bpf: flag tests that cannot be jited on s390 



Flag with FLAG_EXPECTED_FAIL the BPF_MAXINSNS tests that cannot be jited
on s390 because they exceed BPF_SIZE_MAX and fail when
CONFIG_BPF_JIT_ALWAYS_ON is set. Also set .expected_errcode to -ENOTSUPP
so the tests pass in that case.

Signed-off-by: default avatarKleber Sacilotto de Souza <kleber.souza@canonical.com>
Acked-by: default avatarSong Liu <songliubraving@fb.com>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
parent dd349c3f

lib/test_bpf.c

+20 −0
Original line number Diff line number Diff line
@@ -5282,21 +5282,31 @@ 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_TCI & VLAN_TAG_PRESENT) },

			{ 10, !!(SKB_VLAN_TCI & VLAN_TAG_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",
@@ -5347,18 +5357,28 @@ 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