linux-kernel - [PATCH AUTOSEL 5.4 079/350] selftests/bpf: Fix btf

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Message-Id: <20191210210735.9077-40-sashal@kernel.org>
Date:   Tue, 10 Dec 2019 16:03:04 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Andrii Nakryiko <andriin@...com>,
        John Fastabend <john.fastabend@...il.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Sasha Levin <sashal@...nel.org>,
        linux-kselftest@...r.kernel.org, netdev@...r.kernel.org,
        bpf@...r.kernel.org
Subject: [PATCH AUTOSEL 5.4 079/350] selftests/bpf: Fix btf_dump padding test case

From: Andrii Nakryiko <andriin@...com>

[ Upstream commit 76790c7c66ccc8695afc75e73f54c0ca86267ed2 ]

Existing padding test case for btf_dump has a good test that was
supposed to test padding generation at the end of a struct, but its
expected output was specified incorrectly. Fix this.

Fixes: 2d2a3ad872f8 ("selftests/bpf: add btf_dump BTF-to-C conversion tests")
Reported-by: John Fastabend <john.fastabend@...il.com>
Signed-off-by: Andrii Nakryiko <andriin@...com>
Signed-off-by: Alexei Starovoitov <ast@...nel.org>
Link: https://lore.kernel.org/bpf/20191008231009.2991130-4-andriin@fb.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 .../testing/selftests/bpf/progs/btf_dump_test_case_padding.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/progs/btf_dump_test_case_padding.c b/tools/testing/selftests/bpf/progs/btf_dump_test_case_padding.c
index 3a62119c74986..35c512818a56b 100644
--- a/tools/testing/selftests/bpf/progs/btf_dump_test_case_padding.c
+++ b/tools/testing/selftests/bpf/progs/btf_dump_test_case_padding.c
@@ -62,6 +62,10 @@ struct padded_a_lot {
  *	long: 64;
  *	long: 64;
  *	int b;
+ *	long: 32;
+ *	long: 64;
+ *	long: 64;
+ *	long: 64;
  *};
  *
  */
@@ -95,7 +99,6 @@ struct zone_padding {
 struct zone {
 	int a;
 	short b;
-	short: 16;
 	struct zone_padding __pad__;
 };
 
-- 
2.20.1