linux-kernel - Re: [PATCH v7 04/14] crypto: add a new driver for Marvell's CESA

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Message-ID: <20150619102407.01187ff0@free-electrons.com>
Date:	Fri, 19 Jun 2015 10:24:07 +0200
From:	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
To:	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	Boris Brezillon <boris.brezillon@...e-electrons.com>,
	"David S. Miller" <davem@...emloft.net>,
	linux-crypto@...r.kernel.org, Arnaud Ebalard <arno@...isbad.org>,
	Tawfik Bayouk <tawfik@...vell.com>,
	Lior Amsalem <alior@...vell.com>,
	Nadav Haklai <nadavh@...vell.com>,
	Eran Ben-Avi <benavi@...vell.com>,
	Gregory CLEMENT <gregory.clement@...e-electrons.com>,
	Jason Cooper <jason@...edaemon.net>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Andrew Lunn <andrew@...n.ch>, Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
	Imre Kaloz <kaloz@...nwrt.org>,
	Russell King - ARM Linux <linux@....linux.org.uk>
Subject: Re: [PATCH v7 04/14] crypto: add a new driver for Marvell's CESA

Hello Herbert,

On Fri, 19 Jun 2015 14:42:56 +0800, Herbert Xu wrote:
> On Thu, Jun 18, 2015 at 03:46:20PM +0200, Boris Brezillon wrote:
> >
> > +	dram = mv_mbus_dram_info_nooverlap();
> 
> This doesn't compile because it hasn't made it into mainline yet.
> I'm afraid this patch-set will have to wait until that happens.

We have two options here:

 1/ We can ask the mach-mvebu maintainers to provide a branch with just
    the commit implementing mv_mbus_dram_info_nooverlap(), and you
    merge that branch into your tree as a dependency.

 2/ We temporarily revert back to using mv_mbus_dram_info(). For the
    vast majority of platforms, this is OK. It's only if you have 4 GB
    of RAM or more that it causes problem. And then we switch to
    mv_mbus_dram_info_nooverlap() as part of the -rc cycle.

(2) is probably easier. Herbert, what do you think?

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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