linux-kernel - Sharing header files -- arch/arm/mach-generic ?

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Message-ID: <20120423194042.GA5734@elf.ucw.cz>
Date:	Mon, 23 Apr 2012 21:40:42 +0200
From:	Pavel Machek <pavel@...x.de>
To:	kernel list <linux-kernel@...r.kernel.org>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	wd@...x.de
Subject: Sharing header files -- arch/arm/mach-generic  ?

Hi!

I have new architecture I'd like to merge into the mainline. It has
some code very similar to existing plaforms (for example
real differences to mach-realview/platsmp.c are two lines.)

Is that a problem?

Should mach-generic/platsmp.c be created, so code can be better
shared? Or are the code pieces small enough that this duplication can
be ignored?

headsmp.S is another candidate for sharing. AFAICT we have 4 times
identical code in the tree already:

./mach-exynos/headsmp.S:   ldmia	r4, {r5, r6}
./plat-versatile/headsmp.S:		ldmia	 r4, {r5, r6}
./mach-ux500/headsmp.S:			ldmia	 r4, {r5, r6}
./mach-msm/headsmp.S:			ldmia	 r4, {r5, r6}

Thoughts?
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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