linux-kernel - Re: [RFC PATCH net-next 01/20] net: dsa: mv88e6xxx: factorize PHY access with PPU

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Date:	Fri, 6 May 2016 01:06:59 +0200
From:	Andrew Lunn <andrew@...n.ch>
To:	Vivien Didelot <vivien.didelot@...oirfairelinux.com>
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel@...oirfairelinux.com,
	"David S. Miller" <davem@...emloft.net>,
	Florian Fainelli <f.fainelli@...il.com>
Subject: Re: [RFC PATCH net-next 01/20] net: dsa: mv88e6xxx: factorize PHY
 access with PPU

>  {
>  	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
>  	int addr = mv88e6xxx_port_to_phy_addr(ps, port);
> -	int ret;
> +	int err;
>  
>  	if (addr < 0)
>  		return 0xffff;
>  
> +

We don't want an extra blank line. I'm surprised checkpatch did not
warn about this.

>  	mutex_lock(&ps->smi_mutex);
> -	ret = _mv88e6xxx_phy_write(ps, addr, regnum, val);
> +
> +	if (mv88e6xxx_has(ps, MV88E6XXX_FLAG_PPU))
> +		err = _mv88e6xxx_phy_write_ppu(ps, addr, regnum, val);
> +	else
> +		err = _mv88e6xxx_phy_write(ps, addr, regnum, val);
> +
>  	mutex_unlock(&ps->smi_mutex);
> -	return ret;
> +
> +	return err;

Please don't rename ret to err. This patch is about phy reading and
writing, and i don't expect to see anything else here. It makes it
harder to review.

	 Andrew