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

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Date:   Mon, 16 Sep 2019 13:53:47 +0800
From:   zhong jiang <zhongjiang@...wei.com>
To:     Kalle Valo <kvalo@...eaurora.org>
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

On 2019/9/13 1:45, Kalle Valo wrote:
> 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?
Yep,  I miss that.   please ignore the patch.  Thanks,

Sincerely,
zhong jiang