linux-kernel - Re: [PATCH v2 1/2] ARM: shmobile: sh73a0: Use generic irqchip

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Message-ID: <20130122080713.GA5569@verge.net.au>
Date:	Tue, 22 Jan 2013 17:07:17 +0900
From:	Simon Horman <horms@...ge.net.au>
To:	Olof Johansson <olof@...om.net>
Cc:	Thierry Reding <thierry.reding@...onic-design.de>,
	Magnus Damm <magnus.damm@...il.com>, linux-sh@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] ARM: shmobile: sh73a0: Use generic irqchip_init()

On Mon, Jan 21, 2013 at 11:29:12PM -0800, Olof Johansson wrote:
> On Mon, Jan 21, 2013 at 08:03:01AM +0100, Thierry Reding wrote:
> > On Mon, Jan 21, 2013 at 09:54:39AM +0900, Simon Horman wrote:
> > > On Fri, Jan 18, 2013 at 08:16:12AM +0100, Thierry Reding wrote:
> > > > The asm/hardware/gic.h header does no longer exist and the corresponding
> > > > functionality was moved to linux/irqchip.h and linux/irqchip/arm-gic.h
> > > > respectively. gic_handle_irq() and of_irq_init() are no longer available
> > > > either and have been replaced by irqchip_init().
> > > 
> > > asm/hardware/gic.h Seems to still exist in Linus's tree.
> > > Could you let me know which tree of which branch I should depend on
> > > in order to apply this change?
> > 
> > I found this when doing an automated build over all ARM defconfigs on
> > linux-next.
> > 
> > Commit 520f7bd73354f003a9a59937b28e4903d985c420 "irqchip: Move ARM gic.h
> > to include/linux/irqchip/arm-gic.h" moved the file and was merged
> > through Olof Johansson's next/cleanup and for-next branches.
> > 
> > Adding Olof on Cc since I'm not quite sure myself about how this is
> > handled.
> 
> The way to handle this is to base the branch you are adding new shmobile code
> in, on top of the cleanup branches that changes the underlying infrastructure.
> This is why we merge it early during the release, so that new code for various
> platforms can be based on it to avoid a bunch of conflicts in the end.
> 
> In this case, you might need to base your branch onto a merge of both
> the irqchip/gic-vic-move and timer/cleanup branches from arm-soc.

Thanks, I'll take a look at rebasing accordingly.
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