linux-kernel - Re: Forked android kernel development from linux kernel mainline

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Message-ID: <adawrojkz9v.fsf@cisco.com>
Date:	Thu, 11 Nov 2010 19:15:56 -0800
From:	Roland Dreier <rdreier@...co.com>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Greg KH <greg@...ah.com>, Arnaud Lacombe <lacombar@...il.com>,
	Anca Emanuel <anca.emanuel@...il.com>,
	Elvis Dowson <elvis.dowson@....com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Forked android kernel development from linux kernel mainline

 > >  > Isn't the openwrt stuff just drivers and some arch specific code?
 > >  > Nothing that is core infrastructure, and nothing preventing them from
 > >  > submitting the drivers and arch code if they want to, right?
 > > 
 > > Actually openwrt has some core infrastructure for managing (ethernet)
 > > switches as extra-fancy multiport PHYs.  That means that all the drivers
 > > in openwrt for the typical 5-8 port switches in home routers don't
 > > really apply to mainline.
 > 
 > Why not? Those switches _ARE_ extra-fancy multiport PHYs. And AFAICT
 > we have no support for this stuff in mainline at all.
 > 
 > So where is the problem ?

There's no real problem.  I was just pointing out that the openwrt
switch stuff actually does have some core infrastructure that mainline
is missing.  ie openwrt is not just drivers and arch code.

But yes I agree mainline should really do a better job of supporting
ethernet switches, and clearly openwrt has the most real-world
experience with implementing that.

 - R.
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