linux-kernel - Re: [RFC PATCH 1/5] irq_work: Move irq_work_raise() declaration/default definition to arch headers

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Message-Id: <201210152134.45672.arnd@arndb.de>
Date:	Mon, 15 Oct 2012 21:34:45 +0000
From:	Arnd Bergmann <arnd@...db.de>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	Catalin Marinas <catalin.marinas@....com>,
	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Howells <dhowells@...hat.com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: Re: [RFC PATCH 1/5] irq_work: Move irq_work_raise() declaration/default definition to arch headers

On Monday 15 October 2012, Steven Rostedt wrote:
> On Mon, 2012-10-15 at 22:23 +0200, Frederic Weisbecker wrote:
> > 2012/10/15 Steven Rostedt <rostedt@...dmis.org>:
> > > On Mon, 2012-10-15 at 17:11 +0100, Catalin Marinas wrote:
> > > BTW, is there any rational reason that the include path lookup doesn't
> > > just check for the files in include/asm-generic after looking in
> > > arch/*/include/asm?
> > >
> > > Really, the best way would be just to add the default asm files into
> > > include/asm-generic and be done with it. I hate the fact that we need to
> > > touch every arch for every generic default file.
> > 
> > Agreed. I'm including Arnd in the conversation.
> 
> As David Howells is doing user space header work, I'll include him too.
> Maybe someone can shed some light onto this.
> 

A number of people have expressed the wish to do this through Makefile magic, but
so far nobody has been able to come up with the right incantation.

I've spent a day trying to figure it out, and I think Mark Brown tried some of
the same things. It's probably not all that hard for someone who is more familiar
with the Kbuild internals.

	Arnd
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