linux-kernel - RE: [PATCH v5 2/3] net: Add Keystone NetCP ethernet driver

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Date:	Tue, 30 Sep 2014 13:09:34 +0000
From:	David Laight <David.Laight@...LAB.COM>
To:	'David Miller' <davem@...emloft.net>,
	"santosh.shilimkar@...com" <santosh.shilimkar@...com>
CC:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"robh+dt@...nel.org" <robh+dt@...nel.org>,
	"grant.likely@...aro.org" <grant.likely@...aro.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"sandeep_n@...com" <sandeep_n@...com>,
	"joe@...ches.com" <joe@...ches.com>
Subject: RE: [PATCH v5 2/3] net: Add Keystone NetCP ethernet driver

From: David Miller
> From: Santosh Shilimkar <santosh.shilimkar@...com>
> Date: Thu, 25 Sep 2014 13:48:36 -0400
> 
> > +static inline int gbe_phy_link_status(struct gbe_slave *slave)
> > +{
> > +	if (!slave->phy)
> > +		return 1;
> > +
> > +	if (slave->phy->link)
> > +		return 1;
> > +
> > +	return 0;
> > +}
> 
> Please use 'bool' as the return type and return 'true' or 'false'.

That function body could also be just:
	return !slave->phy && slave->phy->link;
which might be more readable if directly coded.

I also wonder if slave>phy can actually be NULL?
If it can be under unusual circumstances it might be worth
assigning the address of a dummy 'phy' structure so that the
tests can all be removed.

	David



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