linux-kernel - [PATCH v2] tests: remove unneeded conversion to bool

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Message-Id: <9bca1d9eb8ccacf4a64a8813f9eefe7f7272b3d6.1638581673.git.yang.guang5@zte.com.cn>
Date:   Mon,  6 Dec 2021 08:07:23 +0800
From:   davidcomponentone@...il.com
To:     shuah@...nel.org
Cc:     skhan@...uxfoundation.org, davidcomponentone@...il.com,
        ptikhomirov@...tuozzo.com, christian.brauner@...ntu.com,
        yang.guang5@....com.cn, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org, Zeal Robot <zealci@....com.cn>
Subject: [PATCH v2] tests: remove unneeded conversion to bool

From: Yang Guang <yang.guang5@....com.cn>

The coccinelle report
./tools/testing/selftests/move_mount_set_group/move_mount_set_group_test.c:225:18-23:
WARNING: conversion to bool not needed here
Relational and logical operators evaluate to bool,
explicit conversion is overly verbose and unneeded.

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: Yang Guang <yang.guang5@....com.cn>

---

Changes in v2:
- Change the return type to bool.
---
 .../move_mount_set_group/move_mount_set_group_test.c   | 10 +++++-----
 1 file changed, 5 insertions(+), 5 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 860198f83a53..50ed5d475dd1 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
@@ -191,7 +191,7 @@ static bool is_shared_mount(const char *path)
 #define SET_GROUP_FROM	"/tmp/move_mount_set_group_supported_from"
 #define SET_GROUP_TO	"/tmp/move_mount_set_group_supported_to"
 
-static int move_mount_set_group_supported(void)
+static bool move_mount_set_group_supported(void)
 {
 	int ret;
 
@@ -222,7 +222,7 @@ static int move_mount_set_group_supported(void)
 		      AT_FDCWD, SET_GROUP_TO, MOVE_MOUNT_SET_GROUP);
 	umount2("/tmp", MNT_DETACH);
 
-	return ret < 0 ? false : true;
+	return ret >= 0;
 }
 
 FIXTURE(move_mount_set_group) {
@@ -232,7 +232,7 @@ FIXTURE(move_mount_set_group) {
 
 FIXTURE_SETUP(move_mount_set_group)
 {
-	int ret;
+	bool ret;
 
 	ASSERT_EQ(prepare_unpriv_mountns(), 0);
 
@@ -254,7 +254,7 @@ FIXTURE_SETUP(move_mount_set_group)
 
 FIXTURE_TEARDOWN(move_mount_set_group)
 {
-	int ret;
+	bool ret;
 
 	ret = move_mount_set_group_supported();
 	ASSERT_GE(ret, 0);
@@ -348,7 +348,7 @@ TEST_F(move_mount_set_group, complex_sharing_copying)
 		.shared = false,
 	};
 	pid_t pid;
-	int ret;
+	bool ret;
 
 	ret = move_mount_set_group_supported();
 	ASSERT_GE(ret, 0);
-- 
2.30.2