netdev - Re: [PATCH] net: bnx2x: convert to hw

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Date:	Sun, 10 Apr 2011 17:23:36 +0200
From:	Michał Mirosław <mirq-linux@...e.qmqm.pl>
To:	Vladislav Zolotarov <vladz@...adcom.com>
Cc:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	Eilon Greenstein <eilong@...adcom.com>
Subject: Re: [PATCH] net: bnx2x: convert to hw_features

On Sun, Apr 10, 2011 at 06:10:14PM +0300, Vladislav Zolotarov wrote:
> > +int bnx2x_set_features(struct net_device *dev, u32 features)
> > +{
> > +	struct bnx2x *bp = netdev_priv(dev);
> > +	u32 flags = bp->flags;
> > +
> > +	if (features & NETIF_F_LRO)
> > +		flags |= TPA_ENABLE_FLAG;
> > +	else
> > +		flags &= ~TPA_ENABLE_FLAG;
> > +
> > +	if (flags ^ bp->flags) {
> > +		bp->flags = flags;
> > +
> > +		return bnx2x_reload_if_running(dev);
> >  	}
> >  
> > -	return rc;
> > +	return 0;
> >  }
> 
> Thanks a lot, Michal. Looks ok but one remark below.
> 
> Every time  bnx2x_reload_if_running(dev) is called one has to check if
> there is still a recovery process in progress like u did in the
> bnx2x_fix_features(). So this check is missing in the function above.

bnx2x_set_features() might be called only if bnx2x_fix_features() returns
different feature set than what's already set in dev->features. So this
case is implicitly covered. I'll add a comment for this.

Best Regards,
Michał Mirosław
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