linux-kernel - Re: [PATCH] gianfar: reduce stack usage in gianfar

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Message-ID: <1312912774.2547.1.camel@edumazet-laptop>
Date:	Tue, 09 Aug 2011 19:59:34 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Joe Perches <joe@...ches.com>
Cc:	stufever@...il.com, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, davem@...emloft.net,
	Wang Shaoyan <wangshaoyan.pt@...bao.com>
Subject: Re: [PATCH] gianfar: reduce stack usage in gianfar_ethtool.c

Le mardi 09 août 2011 à 10:52 -0700, Joe Perches a écrit :
> On Tue, 2011-08-09 at 18:53 +0200, Eric Dumazet wrote:
> > Le mercredi 10 août 2011 à 00:39 +0800, stufever@...il.com a écrit :
> []
> > > +	if (!local_rqfpr || !local_rqfcr) {
> > > +		pr_err("Out of memory\n");
> > 	Please remove this pr_err(), kmalloc() will complain already.
> 
> Always?
> I know there's a trace option, but is it always on?
> 

Yes, unless caller added ___GFP_NOWARN in gfp :

ptr = kmalloc(size, GFP_KERNEL | ___GFP_NOWARN);



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