netdev - Re: [PATCH v2 03/16] net: reduce and unify printk level in netdev_fix

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Date:	Sun, 23 Jan 2011 00:40:51 +0100
From:	Michał Mirosław <mirq-linux@...e.qmqm.pl>
To:	Joe Perches <joe@...ches.com>
Cc:	netdev@...r.kernel.org, Ben Hutchings <bhutchings@...arflare.com>
Subject: Re: [PATCH v2 03/16] net: reduce and unify printk level in
	netdev_fix_features()

On Sat, Jan 22, 2011 at 03:12:22PM -0800, Joe Perches wrote:
> On Sat, 2011-01-22 at 23:14 +0100, Michał Mirosław wrote:
> > Reduce printk() levels to KERN_INFO in netdev_fix_features() as this will
> > be used by ethtool and might spam dmesg unnecessarily.
> > diff --git a/net/core/dev.c b/net/core/dev.c
> > index 01d7ce2..168588f 100644
> > --- a/net/core/dev.c
> > +++ b/net/core/dev.c
> > @@ -5127,58 +5127,52 @@ static void rollback_registered(struct net_device *dev)
> >  	rollback_registered_many(&single);
> >  }
> >  
> > -u32 netdev_fix_features(u32 features, const char *name)
> > +u32 netdev_fix_features(struct net_device *dev, u32 features)
> 
> Perhaps this would be simpler as:
> void netdev_fix_features(struct net_device *dev)

Code introduced in next patches in the series pass modified features
values here.

> >  {
> >  	/* Fix illegal checksum combinations */
> >  	if ((features & NETIF_F_HW_CSUM) &&
> >  	    (features & (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM))) {
> 
> 	if (dev->features & etc...) {
> 		dev->features &= etc...)
> 
> > +		netdev_info(dev,0
> > +			"mixed HW and IP checksum settings.\n");
> 
> Fits nicely on a single line:
> 
> 		netdev_info(dev, "mixed HW and IP checksum settings\n"); 

Fixed.

> >  		features &= ~(NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM);
> >  	}
> >  
> >  	if ((features & NETIF_F_NO_CSUM) &&
> >  	    (features & (NETIF_F_HW_CSUM|NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM))) {
> > -		if (name)
> > -			printk(KERN_NOTICE "%s: mixed no checksumming and other settings.\n",
> > -				name);
> > +		netdev_info(dev,
> > +			"mixed no checksumming and other settings.\n");
> 
> Here too, etc...
> 		netdev_info(dev, "mixed no checksumming and other settings\n");

This one is actually exactly 80 chars then, fixed this and another one.

Long time ago there were editors which added spurious empty line when line
length matched terminal's width. Hope they're all gone by now. ;)

Best Regards,
Michał Mirosław
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