linux-kernel - [PATCH] selftests/move_mount_set_group:Make tests build with old libc

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Date: Wed, 10 Jan 2024 14:40:40 +0800
From: Hu Yadi <hu.yadi@....com>
To: <jmorris@...ei.org>, <serge@...lyn.com>, <shuah@...nel.org>,
        <mathieu.desnoyers@...icios.com>
CC: <linux-api@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-security-module@...r.kernel.org>,
        <linux-kselftest@...r.kernel.org>, <514118380@...com>,
        "Hu.Yadi" <hu.yadi@....com>
Subject: [PATCH] selftests/move_mount_set_group:Make tests build with old libc

From: "Hu.Yadi" <hu.yadi@....com>

Replace SYS_<syscall> with __NR_<syscall>.  Using the __NR_<syscall>
notation, provided by UAPI, is useful to build tests on systems without
the SYS_<syscall> definitions.

Replace SYS_move_mount with __NR_move_mount

Signed-off-by: Hu.Yadi <hu.yadi@....com>
Suggested-by:jiaoxupo@....com
Reviewed-by:berlin@....com
---
 .../move_mount_set_group/move_mount_set_group_test.c          | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/move_mount_set_group/move_mount_set_group_test.c b/tools/testing/selftests/move_mount_set_group/move_mount_set_group_test.c
index 50ed5d475dd1..bcf51d785a37 100644
--- a/tools/testing/selftests/move_mount_set_group/move_mount_set_group_test.c
+++ b/tools/testing/selftests/move_mount_set_group/move_mount_set_group_test.c
@@ -218,7 +218,7 @@ static bool move_mount_set_group_supported(void)
 	if (mount(NULL, SET_GROUP_FROM, NULL, MS_SHARED, 0))
 		return -1;
 
-	ret = syscall(SYS_move_mount, AT_FDCWD, SET_GROUP_FROM,
+	ret = syscall(__NR_move_mount, AT_FDCWD, SET_GROUP_FROM,
 		      AT_FDCWD, SET_GROUP_TO, MOVE_MOUNT_SET_GROUP);
 	umount2("/tmp", MNT_DETACH);
 
@@ -363,7 +363,7 @@ TEST_F(move_mount_set_group, complex_sharing_copying)
 		       CLONE_VM | CLONE_FILES); ASSERT_GT(pid, 0);
 	ASSERT_EQ(wait_for_pid(pid), 0);
 
-	ASSERT_EQ(syscall(SYS_move_mount, ca_from.mntfd, "",
+	ASSERT_EQ(syscall(__NR_move_mount, ca_from.mntfd, "",
 			  ca_to.mntfd, "", MOVE_MOUNT_SET_GROUP
 			  | MOVE_MOUNT_F_EMPTY_PATH | MOVE_MOUNT_T_EMPTY_PATH),
 		  0);
-- 
2.23.0