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Date: Wed, 22 Jan 2014 14:08:18 +0100
From: Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH v9 5/6] MCS Lock: Order the header files in Kbuild of
 each architecture in alphabetical order
Message-ID: <20140122130818.GP31570@twins.programming.kicks-ass.net>
References: <cover.1390320729.git.tim.c.chen@linux.intel.com>
 <1390347376.3138.66.camel@schen9-DESK>
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To: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Ingo Molnar <mingo@elte.hu>, Andrew Morton <akpm@linux-foundation.org>, Thomas Gleixner <tglx@linutronix.de>, "Paul E.McKenney" <paulmck@linux.vnet.ibm.com>, Will Deacon <will.deacon@arm.com>, linux-kernel@vger.kernel.org, linux-mm <linux-mm@kvack.org>, linux-arch@vger.kernel.org, Linus Torvalds <torvalds@linux-foundation.org>, Waiman Long <waiman.long@hp.com>, Andrea Arcangeli <aarcange@redhat.com>, Alex Shi <alex.shi@linaro.org>, Andi Kleen <andi@firstfloor.org>, Michel Lespinasse <walken@google.com>, Davidlohr Bueso <davidlohr.bueso@hp.com>, Matthew R Wilcox <matthew.r.wilcox@intel.com>, Dave Hansen <dave.hansen@intel.com>, Rik van Riel <riel@redhat.com>, Peter Hurley <peter@hurleysoftware.com>, Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>, George Spelvin <linux@horizon.com>, "H. Peter Anvin" <hpa@zytor.com>, Arnd Bergmann <arnd@arndb.de>, Aswin Chandramouleeswaran <aswin@hp.com>, Scott J Norton <scott.norton@hp.com>, "Figo.zhang" <figo1802@gmail.com>, sfr@canb.auug.org.au

On Tue, Jan 21, 2014 at 03:36:16PM -0800, Tim Chen wrote:
> From: Peter Zijlstra <peterz@infradead.org>
> 
> We perform a clean up of the Kbuid files in each architecture.
> We order the files in each Kbuild in alphabetical order
> by running the below script on each Kbuild file:
> 
> gawk '/^generic-y/ {
>         i = 3;
>         do {
>                 for (; i<=NF; i++) {
>                         if ($i == "\\") {
>                                 getline;
>                                 i=1;
>                                 continue;
>                         }
>                         if ($i != "")
>                                 hdr[$i] = $i;
>                 }
>                 break;
>         } while (1);
>         next;
> }
> END {
>         n = asort(hdr);
>         for (i=1; i<=n; i++)
>                 print "generic-y += " hdr[i];
> }'
> 

I'll probably have to regenerate this patch once the merge window is
done, but that's no biggie.

sfr, you might want to keep this script handy and distribute to others
who are lazy and don't want to sort by hand.

I suppose running it requires a little something like:

for i in arch/*/include/asm/Kbuild
do
	cat $i | gawk .... > ${i}.sorted;
	mv ${i}.sorted $i;
done

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