linux-kernel - Re: [PATCH 1/5] ARM: defconfigs: add MTD_SPI

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Date:	Wed, 30 Apr 2014 07:45:48 -0400
From:	Jason Cooper <jason@...edaemon.net>
To:	Brian Norris <computersforpeace@...il.com>
Cc:	Stephen Warren <swarren@...dotorg.org>,
	Marek Vasut <marex@...x.de>,
	Russell King <linux@....linux.org.uk>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Thierry Reding <thierry.reding@...il.com>,
	linux-mtd@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org,
	Sascha Hauer <kernel@...gutronix.de>,
	Olof Johansson <olof@...om.net>,
	Shawn Guo <shawn.guo@...escale.com>
Subject: Re: [PATCH 1/5] ARM: defconfigs: add MTD_SPI_NOR (new dependency
 for M25P80)

On Tue, Apr 29, 2014 at 12:06:03PM -0700, Brian Norris wrote:
> Hi Stephen,
> 
> On Fri, Apr 25, 2014 at 10:39:37AM -0600, Stephen Warren wrote:
> > On 04/17/2014 01:21 AM, Brian Norris wrote:
> > > These defconfigs contain the CONFIG_M25P80 symbol, which is now
> > > dependent on the MTD_SPI_NOR symbol. Add CONFIG_MTD_SPI_NOR to the
> > > relevant defconfigs.
> > > 
> > > At the same time, drop the now-nonexistent CONFIG_MTD_CHAR symbol.
> > 
> > I hadn't realized that the problem this patch solves was already present
> > in the code, so this patch is simply catching up the defconfigs rather
> > than part of a series which changed the code to cause the problem.
> 
> Yes, this is "catching up the defconfigs." The SPI_NOR framework is new,
> and I didn't want to generate defconfig noise until a few things
> stabilized (particularly, its Kconfig symbol name).
> 
> > So, this needs to be applied ASAP.
> > 
> > I think this should be split it up so that each defconfig can go through
> > the tree that owns it to avoid conflicts. If you repost split up, I can
> > apply the tegra_defconfig change to the Tegra tree.
> 
> OK, I'll try to split it up. Is ARM unique in tracking defconfigs in
> separate trees? I assume MIPS, PowerPC, and Blackfin won't require the
> same splitting? I'd like to avoid 31 patches when <20 could suffice.

wrt arm-soc, typically they take all changes to multi_v7_defconfig
directly since it is prone to conflicts.  All the other ones are managed
by the individual sub-arch maintainers.

> I'll also rebase on linux-next. I think there may be a few conflicts.

I can't speak for the other sub-archs, but I typically prefer that
patches be based on an -rc tag, -rc1 if possible.

thx,

Jason.
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