linux-kernel - [PATCH AUTOSEL 5.10 42/53] selftests: openat2: Fix testing failure for O

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Date:   Thu,  9 Sep 2021 20:20:17 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Baolin Wang <baolin.wang@...ux.alibaba.com>,
        Aleksa Sarai <cyphar@...har.com>,
        Christian Brauner <christian.brauner@...ntu.com>,
        Shuah Khan <skhan@...uxfoundation.org>,
        Sasha Levin <sashal@...nel.org>,
        linux-kselftest@...r.kernel.org
Subject: [PATCH AUTOSEL 5.10 42/53] selftests: openat2: Fix testing failure for O_LARGEFILE flag

From: Baolin Wang <baolin.wang@...ux.alibaba.com>

[ Upstream commit d538ddb97e066571e4fc58b832f40739621b42bb ]

The openat2 test suite fails on ARM64 because the definition of
O_LARGEFILE is different on ARM64. Fix the problem by defining
the correct O_LARGEFILE definition on ARM64.

"openat2 unexpectedly returned # 3['.../tools/testing/selftests/openat2']
with 208000 (!= 208000)
not ok 102 openat2 with incompatible flags (O_PATH | O_LARGEFILE) fails
with -22 (Invalid argument)"

Fixed change log to improve formatting and clarity:
Shuah Khan <skhan@...uxfoundation.org>

Signed-off-by: Baolin Wang <baolin.wang@...ux.alibaba.com>
Reviewed-by: Aleksa Sarai <cyphar@...har.com>
Acked-by: Christian Brauner <christian.brauner@...ntu.com>
Signed-off-by: Shuah Khan <skhan@...uxfoundation.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/testing/selftests/openat2/openat2_test.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/testing/selftests/openat2/openat2_test.c b/tools/testing/selftests/openat2/openat2_test.c
index b386367c606b..5354cef55c6c 100644
--- a/tools/testing/selftests/openat2/openat2_test.c
+++ b/tools/testing/selftests/openat2/openat2_test.c
@@ -22,7 +22,11 @@
  * XXX: This is wrong on {mips, parisc, powerpc, sparc}.
  */
 #undef	O_LARGEFILE
+#ifdef __aarch64__
+#define	O_LARGEFILE 0x20000
+#else
 #define	O_LARGEFILE 0x8000
+#endif
 
 struct open_how_ext {
 	struct open_how inner;
-- 
2.30.2