linux-kernel - Re: [PATCH 08/24] net, diet: Make TCP metrics optional

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Message-ID: <20140506195704.GA5619@two.firstfloor.org>
Date:	Tue, 6 May 2014 21:57:04 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Tom Herbert <therbert@...gle.com>
Cc:	Andi Kleen <ak@...ux.intel.com>,
	Eric Dumazet <eric.dumazet@...il.com>, josh@...htriplett.org,
	David Miller <davem@...emloft.net>,
	Andi Kleen <andi@...stfloor.org>,
	Linux Netdev List <netdev@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>, tom.zanussi@...ux.intel.com
Subject: Re: [PATCH 08/24] net, diet: Make TCP metrics optional

> Can this at least be done without the combinatorial explosion in
> number of configurations? As Yuchung pointed out these patches
> introduce at least one unresolved configuration dependency. CONFIG_SMP
> works quite well since with a single parameter we can enable/disable a
> whole bunch of functionality in bulk, and it's quite clear that new
> development cannot break smp or non-smp configurations. Maybe you want
> something similar like CONFIG_NETWORK_SMALL?

Yes I've considered this.  I'm not sure SMP is good enough though,
at some point we'll get tiny dual core systems.

>From the 0/0:

>>>
Right now I'm using own Kconfigs for every removed features. I realize
this somewhat increases the compile test matrix. It would be possible
to hide some of the options and select them using higher level
configurations like the ones listed above. I haven't done this
in this version.
<<<

-Andi
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