netdev - Re: [PATCH 07/10] net: remove NETIF_F_NO

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Message-ID: <20110714224445.GA18237@rere.qmqm.pl>
Date:	Fri, 15 Jul 2011 00:44:45 +0200
From:	Michał Mirosław <mirq-linux@...e.qmqm.pl>
To:	David Miller <davem@...emloft.net>
Cc:	therbert@...gle.com, bhutchings@...arflare.com,
	netdev@...r.kernel.org
Subject: Re: [PATCH 07/10] net: remove NETIF_F_NO_CSUM feature

On Thu, Jul 14, 2011 at 02:31:21PM -0700, David Miller wrote:
> From: Michał Mirosław <mirq-linux@...e.qmqm.pl>
> Date: Thu, 14 Jul 2011 22:56:23 +0200
> > That's why its turned off by default and should be enabled only when user
> > knows he will win some pps with it.
> More people are going to lose than win by your change.
> 
> The nocopy feature helps more real situations than it hurts, the
> existing default is the best.

I see. I still want to remove NO_CSUM (as I explained in other mail),
so would you accept replacing it with something more specific to
nocache-copy feature? READS_DATA maybe? That could be later added to
sk_route_caps whenever it's known for a route there will be need to
read packets' data.

Best Regards,
Michał Mirosław
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