linux-kernel - Re: [PATCH v3 0/9] Media Controller capture driver for DM365

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Message-ID: <20121128212952.GP11248@mwanda>
Date:	Thu, 29 Nov 2012 00:29:52 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Sylwester Nawrocki <s.nawrocki@...sung.com>
Cc:	devel@...verdev.osuosl.org,
	DLOS <davinci-linux-open-source@...ux.davincidsp.com>,
	Mauro Carvalho Chehab <mchehab@...hat.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Prabhakar Lad <prabhakar.lad@...com>,
	Hans Verkuil <hansverk@...co.com>,
	Prabhakar Lad <prabhakar.csengg@...il.com>,
	Sakari Ailus <sakari.ailus@....fi>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Hans Verkuil <hans.verkuil@...co.com>,
	Manjunath Hadli <manjunath.hadli@...com>,
	LMML <linux-media@...r.kernel.org>
Subject: Re: [PATCH v3 0/9] Media Controller capture driver for DM365

On Wed, Nov 28, 2012 at 08:30:04PM +0100, Sylwester Nawrocki wrote:
> On 11/28/2012 01:22 PM, Dan Carpenter wrote:
> > In the end this is just a driver, and I don't especially care.  But
> > it's like not just this one which makes me frustrated.  I really
> > believe in linux-next and I think everything should spend a couple
> > weeks there before being merged.
> 
> Couple of weeks in linux-next plus a couple of weeks of final patch
> series version awaiting to being reviewed and picked up by a maintainer
> makes almost entire kernel development cycle. These are huge additional
> delays, especially in the embedded world. Things like these certainly
> aren't encouraging for moving over from out-of-tree to the mainline
> development process. And in this case we are talking only about merging
> driver to the staging tree...

Yeah.  A couple weeks is probably too long.  But I think a week is
totally reasonable.

You have the process wrong.  The maintainer reviews it first, merges
it into his -next git tree.  It sits in linux-next for a bit.  The
merge window opens up.  It is merged.  It gets tested for 3 months.
It is released.

It should work as a continuous even flow.  It shouldn't be a rush to
submit drivers right before the merge window opens.  It's not hard,
you can submit a driver to linux-next at any time.  It magically
flows through the process and is released some months later.

It does suck to add a 3 month delay for people who miss the cut off.
Don't wait until the last minute.  In the embedded world you can
use git cherry-pick to get the driver from linux-next.

regards,
dan carpenter

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