linux-kernel - Re: [PATCH net-next v2] net: ena: Fix using plain integer as NULL pointer in ena_init_napi_in

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Date:   Mon, 20 Jul 2020 15:08:44 +0800
From:   "wanghai (M)" <wanghai38@...wei.com>
To:     Joe Perches <joe@...ches.com>, <gtzalik@...zon.com>,
        <saeedb@...zon.com>, <zorik@...zon.com>, <davem@...emloft.net>,
        <kuba@...nel.org>, <sameehj@...zon.com>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next v2] net: ena: Fix using plain integer as NULL
 pointer in ena_init_napi_in_range


在 2020/7/20 11:15, Joe Perches 写道:
> On Mon, 2020-07-20 at 10:53 +0800, Wang Hai wrote:
>> Fix sparse build warning:
>>
>> drivers/net/ethernet/amazon/ena/ena_netdev.c:2193:34: warning:
>>   Using plain integer as NULL pointer
> []
>> diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
> []
>> @@ -2190,11 +2190,10 @@ static void ena_del_napi_in_range(struct ena_adapter *adapter,
>>   static void ena_init_napi_in_range(struct ena_adapter *adapter,
>>   				   int first_index, int count)
>>   {
>> -	struct ena_napi *napi = {0};
>>   	int i;
>>   
>>   	for (i = first_index; i < first_index + count; i++) {
>> -		napi = &adapter->ena_napi[i];
>> +		struct ena_napi *napi = &adapter->ena_napi[i];
>>   
>>   		netif_napi_add(adapter->netdev,
>>   			       &adapter->ena_napi[i].napi,
> Another possible change is to this statement:
>
>   		netif_napi_add(adapter->netdev,
> 			       &napi->napi,
> 			       etc...);
>
Good catch. I'll add this change, Thanks.
>
>
> .
>