netdev - Re: [PATCH 2/3] wlegacy: Remove unneeded variable and make function to be void

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Date:   Thu, 12 Sep 2019 20:45:52 +0300
From:   Kalle Valo <kvalo@...eaurora.org>
To:     zhong jiang <zhongjiang@...wei.com>
Cc:     <davem@...emloft.net>, <linux-wireless@...r.kernel.org>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/3] wlegacy: Remove unneeded variable and make function to be void

zhong jiang <zhongjiang@...wei.com> writes:

> il4965_set_tkip_dynamic_key_info  do not need return value to
> cope with different ases. And change functon return type to void.
>
> Signed-off-by: zhong jiang <zhongjiang@...wei.com>
> ---
>  drivers/net/wireless/intel/iwlegacy/4965-mac.c | 8 ++------
>  1 file changed, 2 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/net/wireless/intel/iwlegacy/4965-mac.c b/drivers/net/wireless/intel/iwlegacy/4965-mac.c
> index ffb705b..a7bbfe2 100644
> --- a/drivers/net/wireless/intel/iwlegacy/4965-mac.c
> +++ b/drivers/net/wireless/intel/iwlegacy/4965-mac.c
> @@ -3326,12 +3326,11 @@ struct il_mod_params il4965_mod_params = {
>  	return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
>  }
>  
> -static int
> +static void
>  il4965_set_tkip_dynamic_key_info(struct il_priv *il,
>  				 struct ieee80211_key_conf *keyconf, u8 sta_id)
>  {
>  	unsigned long flags;
> -	int ret = 0;
>  	__le16 key_flags = 0;
>  
>  	key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK);
> @@ -3367,8 +3366,6 @@ struct il_mod_params il4965_mod_params = {
>  	memcpy(il->stations[sta_id].sta.key.key, keyconf->key, 16);
>  
>  	spin_unlock_irqrestore(&il->sta_lock, flags);
> -
> -	return ret;
>  }
>  
>  void
> @@ -3483,8 +3480,7 @@ struct il_mod_params il4965_mod_params = {
>  		    il4965_set_ccmp_dynamic_key_info(il, keyconf, sta_id);
>  		break;
>  	case WLAN_CIPHER_SUITE_TKIP:
> -		ret =
> -		    il4965_set_tkip_dynamic_key_info(il, keyconf, sta_id);
> +		il4965_set_tkip_dynamic_key_info(il, keyconf, sta_id);
>  		break;
>  	case WLAN_CIPHER_SUITE_WEP40:
>  	case WLAN_CIPHER_SUITE_WEP104:

To me this looks inconsistent with the rest of the cases in the switch
statement. And won't we then return the ret variable uninitalised?

-- 
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches