linux-kernel - Re: [PATCH] net: ethernet: mediatek: remove useless code in mtk_poll

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Date:   Wed, 19 Jul 2017 11:23:01 +0800
From:   Sean Wang <sean.wang@...iatek.com>
To:     "Gustavo A. R. Silva" <gustavo@...eddedor.com>
CC:     Felix Fietkau <nbd@...nwrt.org>, John Crispin <blogic@...nwrt.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        <netdev@...r.kernel.org>, <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] net: ethernet: mediatek: remove useless code in
 mtk_poll_tx()

On Tue, 2017-07-18 at 15:48 -0500, Gustavo A. R. Silva wrote:
> Remove useless local variable _condition_ and the code related.
> 
> Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
> ---
>  drivers/net/ethernet/mediatek/mtk_eth_soc.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
> index b3d0c2e..7e95cf5 100644
> --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
> +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
> @@ -1027,7 +1027,6 @@ static int mtk_poll_tx(struct mtk_eth *eth, int budget)
>  	unsigned int done[MTK_MAX_DEVS];
>  	unsigned int bytes[MTK_MAX_DEVS];
>  	u32 cpu, dma;
> -	static int condition;
>  	int total = 0, i;
>  
>  	memset(done, 0, sizeof(done));
> @@ -1051,10 +1050,8 @@ static int mtk_poll_tx(struct mtk_eth *eth, int budget)
>  			mac = 1;
>  
>  		skb = tx_buf->skb;
> -		if (!skb) {
> -			condition = 1;
> +		if (!skb)
>  			break;
> -		}
>  
>  		if (skb != (struct sk_buff *)MTK_DMA_DUMMY_DESC) {
>  			bytes[mac] += skb->len;

Acked-by: Sean Wang <sean.wang@...iatek.com>