Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
IronPort-SDR: C8cd0F9M+jjP4jsjmMLL96Y3EX8+slPuwv4bDevIK7M6h+ACb+rK0U7pTSR7KPZ6ZH4KOOylOT
 kxavO417bAmw==
References: <20200720075614.35676-1-wanghai38@huawei.com>
User-agent: mu4e 1.4.10; emacs 26.3
From:   Shay Agroskin <shayagr@amazon.com>
To:     Wang Hai <wanghai38@huawei.com>
CC:     <joe@perches.com>, <gtzalik@amazon.com>, <saeedb@amazon.com>,
        <zorik@amazon.com>, <davem@davemloft.net>, <kuba@kernel.org>,
        <sameehj@amazon.com>, <netdev@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH net-next v3] net: ena: Fix using plain integer as NULL pointer in ena_init_napi_in_range
In-Reply-To: <20200720075614.35676-1-wanghai38@huawei.com>
Date:   Mon, 20 Jul 2020 12:23:20 +0300
Message-ID: <pj41zlimeibkvr.fsf@ua97a68a4e7db56.ant.amazon.com>
MIME-Version: 1.0
Content-Type: text/plain; format=flowed
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk


Wang Hai <wanghai38@huawei.com> writes:

> Fix sparse build warning:
>
> drivers/net/ethernet/amazon/ena/ena_netdev.c:2193:34: warning:
>  Using plain integer as NULL pointer
>
> Reported-by: Hulk Robot <hulkci@huawei.com>
> Signed-off-by: Wang Hai <wanghai38@huawei.com>
> Suggested-by: Joe Perches <joe@perches.com>
> Acked-by: Shay Agroskin <shayagr@amazon.com>
> ---
> v1->v2:
>  Improve code readability based on Joe Perches's suggestion 
> v2->v3:
>  Simplify code based on Joe Perches's suggestion
>  drivers/net/ethernet/amazon/ena/ena_netdev.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c 
> b/drivers/net/ethernet/amazon/ena/ena_netdev.c
> index 91be3ffa1c5c..3eb63b12dd68 100644
> --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
> +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
> @@ -2190,14 +2190,13 @@ 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,
> +			       &napi->napi,
>  			       ENA_IS_XDP_INDEX(adapter, i) ? 
>  ena_xdp_io_poll : ena_io_poll,
>  			       ENA_NAPI_BUDGET);

Acked-by: Shay Agroskin <shayagr@amazon.com>

Thanks a lot for your work