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

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Message-ID: <da6c119c-993b-dae5-25ff-e6cce97b55e3@linuxfoundation.org>
Date:   Mon, 6 Dec 2021 12:03:06 -0700
From:   Shuah Khan <skhan@...uxfoundation.org>
To:     davidcomponentone@...il.com, shuah@...nel.org
Cc:     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>,
        Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH v2] tests: remove unneeded conversion to bool

On 12/5/21 5:07 PM, davidcomponentone@...il.com wrote:
> 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);
> 

Applied. In the future use selftests/<test>: .... convention for
patch summary. Review "git log <filename>" history for how to
write summaries and change logs.

I fixed this one for now.

thanks,
-- Shuah