linux-kernel - Re: [PATCH] ath5k: fix WARNING opportunity for swap.

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Date:   Tue, 8 Aug 2023 08:02:49 +0200
From:   Jiri Slaby <jirislaby@...nel.org>
To:     Mahmoud Maatuq <mahmoudmatook.mm@...il.com>, mickflemm@...il.com,
        mcgrof@...nel.org, kvalo@...nel.org,
        linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     linux-kernel-mentees@...ts.linuxfoundation.org
Subject: Re: [PATCH] ath5k: fix WARNING opportunity for swap.

On 07. 08. 23, 22:10, Mahmoud Maatuq wrote:
> coccinielle reported the following:
> ./drivers/net/wireless/ath/ath5k/phy.c:1573:25-26: WARNING opportunity for swap()


OK, once again:
https://lore.kernel.org/all/0c3acbd4-6ab2-5cc5-6293-54e30093cce2@kernel.org/

> Signed-off-by: Mahmoud Maatuq <mahmoudmatook.mm@...il.com>
> ---
>   drivers/net/wireless/ath/ath5k/phy.c | 5 +----
>   1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/drivers/net/wireless/ath/ath5k/phy.c b/drivers/net/wireless/ath/ath5k/phy.c
> index 5797ef9c73d7..f87eb684f223 100644
> --- a/drivers/net/wireless/ath/ath5k/phy.c
> +++ b/drivers/net/wireless/ath/ath5k/phy.c
> @@ -1562,16 +1562,13 @@ static s16
>   ath5k_hw_get_median_noise_floor(struct ath5k_hw *ah)
>   {
>   	s16 sort[ATH5K_NF_CAL_HIST_MAX];
> -	s16 tmp;
>   	int i, j;
>   
>   	memcpy(sort, ah->ah_nfcal_hist.nfval, sizeof(sort));
>   	for (i = 0; i < ATH5K_NF_CAL_HIST_MAX - 1; i++) {
>   		for (j = 1; j < ATH5K_NF_CAL_HIST_MAX - i; j++) {
>   			if (sort[j] > sort[j - 1]) {
> -				tmp = sort[j];
> -				sort[j] = sort[j - 1];
> -				sort[j - 1] = tmp;
> +				swap(sort[j], sort[j - 1]);
>   			}
>   		}
>   	}

-- 
js
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