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

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Message-ID: <c2b3f36b8e7e1a2799580e76f19a267351da5491.camel@perches.com>
Date:   Fri, 27 Jul 2018 16:30:54 -0700
From:   Joe Perches <joe@...ches.com>
To:     Ivan Khoronzhuk <ivan.khoronzhuk@...aro.org>,
        grygorii.strashko@...com, davem@...emloft.net
Cc:     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 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

> +	ndev = skb->dev;