netdev - Re: [PATCH v3 net-next] net: ethernet: ti: cpsw: replace unnecessarily macroses on functions

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Date:   Sat, 28 Jul 2018 17:41:26 +0300
From:   Ivan Khoronzhuk <ivan.khoronzhuk@...aro.org>
To:     Joe Perches <joe@...ches.com>
Cc:     grygorii.strashko@...com, davem@...emloft.net,
        linux-omap@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, andrew@...n.ch
Subject: Re: [PATCH v3 net-next] net: ethernet: ti: cpsw: replace
 unnecessarily macroses on functions

On Fri, Jul 27, 2018 at 04:30:54PM -0700, Joe Perches wrote:
>On Sat, 2018-07-28 at 01:57 +0300, Ivan Khoronzhuk wrote:
>> Replace ugly macroses on functions.
>
>trivia:
>
>As cpsw_src_port_detect is only used once, and is a
>very small function, it might make the code more
>intelligible to just directly code it where it's used.
>
>> diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
>[]
>> @@ -565,40 +565,40 @@ static const struct cpsw_stats cpsw_gstrings_ch_stats[] = {
>[]
>> +static void cpsw_src_port_detect(struct cpsw_common *cpsw, int status,
>> +				 struct sk_buff *skb)
>> +{
>> +	if (!cpsw->data.dual_emac)
>> +		return;
>> +
>> +	if (CPDMA_RX_SOURCE_PORT(status) == 1)
>> +		skb->dev = cpsw->slaves[0].ndev;
>> +	else if (CPDMA_RX_SOURCE_PORT(status) == 2)
>> +		skb->dev = cpsw->slaves[1].ndev;
>> +}
>[]
>> @@ -801,7 +801,8 @@ static void cpsw_rx_handler(void *token, int len, int status)
>>  	int			ret = 0;
>>  	struct cpsw_common	*cpsw = ndev_to_cpsw(ndev);
>>
>> -	cpsw_dual_emac_src_port_detect(cpsw, status, ndev, skb);
>> +	cpsw_src_port_detect(cpsw, status, skb);
>
>here
Can put here, instead of function, the following:
	if (cpsw->data.dual_emac) {
		port = CPDMA_RX_SOURCE_PORT(status);
		if (port) {
			ndev = cpsw->slaves[--port].ndev;
			skb->dev = ndev;
		}
	}

if no objection ofc.

>
>> +	ndev = skb->dev;

-- 
Regards,
Ivan Khoronzhuk