linux-kernel - Re: [PATCH] lib/test_vmalloc.c: use swap() to make code cleaner

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Date:   Thu, 28 Oct 2021 14:02:20 +0200
From:   Uladzislau Rezki <urezki@...il.com>
To:     cgel.zte@...il.com
Cc:     akpm@...ux-foundation.org, urezki@...il.com,
        deng.changcheng@....com.cn, linux-kernel@...r.kernel.org,
        Zeal Robot <zealci@....com.cn>
Subject: Re: [PATCH] lib/test_vmalloc.c: use swap() to make code cleaner

On Thu, Oct 28, 2021 at 11:14:43AM +0000, cgel.zte@...il.com wrote:
> From: Changcheng Deng <deng.changcheng@....com.cn>
> 
> Use swap() in order to make code cleaner. Issue found by coccinelle.
> 
> Reported-by: Zeal Robot <zealci@....com.cn>
> Signed-off-by: Changcheng Deng <deng.changcheng@....com.cn>
> ---
>  lib/test_vmalloc.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/lib/test_vmalloc.c b/lib/test_vmalloc.c
> index e14993bc84d2..cf41fd6df42a 100644
> --- a/lib/test_vmalloc.c
> +++ b/lib/test_vmalloc.c
> @@ -393,7 +393,7 @@ static struct test_driver {
>  static void shuffle_array(int *arr, int n)
>  {
>  	unsigned int rnd;
> -	int i, j, x;
> +	int i, j;
>  
>  	for (i = n - 1; i > 0; i--)  {
>  		get_random_bytes(&rnd, sizeof(rnd));
> @@ -402,9 +402,7 @@ static void shuffle_array(int *arr, int n)
>  		j = rnd % i;
>  
>  		/* Swap indexes. */
> -		x = arr[i];
> -		arr[i] = arr[j];
> -		arr[j] = x;
> +		swap(arr[i], arr[j]);
>  	}
>  }
>  
> -- 
> 2.25.1

Makes sense to me: Reviewed-by: Uladzislau Rezki (Sony) <urezki@...il.com>

--
Vlad Rezki