linux-kernel - Re: [PATCH v5 00/27] irq_domain generalization and rework

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Date:	Thu, 16 Feb 2012 14:52:19 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Grant Likely <grant.likely@...retlab.ca>
Cc:	linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	devicetree-discuss@...ts.ozlabs.org,
	linux-arm-kernel@...ts.infradead.org,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Milton Miller <miltonm@....com>,
	Rob Herring <rob.herring@...xeda.com>,
	Russell King <rmk@....linux.org.uk>
Subject: Re: [PATCH v5 00/27] irq_domain generalization and rework

On Thu, 16 Feb 2012 02:09:01 -0700
Grant Likely <grant.likely@...retlab.ca> wrote:

> 
> This series generalizes the "irq_host" infrastructure from powerpc
> so that it can be used by all architectures and renames it to "irq_domain".

drivers/mfd/twl-core.c is fairly horked on i386 allmodconfig:

drivers/mfd/twl-core.c: In function 'twl_probe':
drivers/mfd/twl-core.c:1218: error: implicit declaration of function 'irq_alloc_descs'
drivers/mfd/twl-core.c:1226: error: implicit declaration of function 'irq_domain_add_legacy'
drivers/mfd/twl-core.c:1227: error: 'irq_domain_simple_ops' undeclared (first use in this function)
drivers/mfd/twl-core.c:1227: error: (Each undeclared identifier is reported only once
drivers/mfd/twl-core.c:1227: error: for each function it appears in.)


This is today's linux-next so it has rmk's "ARM: omap: fix broken
twl-core dependencies and ifdefs" in there, which looks like it
attempts to repair this stuff.

It's looking for things which are in both linux/irq.h and in
linux/irqdomain.h.



btw, Russell, regarding this comment in include/linux/irq.h:

/*
 * Please do not include this file in generic code.  There is currently
 * no requirement for any architecture to implement anything held
 * within this file.
 *
 * Thanks. --rmk
 */

A quick grep indicates that we've lost this battle ;) Is the comments
still true?  Should we stop discouraging inclusion of linux/irq.h? 
Does anyone even know that it's discouraged ;)



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