linux-kernel - Re: [GIT PULL] DT/core: cpu

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Date:	Wed, 14 Aug 2013 21:37:07 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Sudeep KarkadaNagesha <Sudeep.KarkadaNagesha@....com>
Cc:	"linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	"rob.herring@...xeda.com" <rob.herring@...xeda.com>,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Olof Johansson <olof@...om.net>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [GIT PULL] DT/core: cpu_ofnode updates for v3.12

On Wed, 2013-08-14 at 11:01 +0100, Sudeep KarkadaNagesha wrote:
> Yes this doesn't cover the historical "ibm,ppc-interrupt-server#s",
> for
> which we can have PPC specific wrapper above the generic one i.e. get
> the cpu node and then parse for thread id under custom property.

A wrapper is wrong. I don't want to have to have all ppc callers to use
a different function.

As I said, just make a generic one that returns a thread ID, ie, same
signature as the powerpc one. Make it weak, we can override it in
powerpc-land, or we can move the ibm,ppc-interrupt-server#s handling
into the generic one, it won't hurt, but leave the thread_id return
there, it doesn't hurt it will come in handy in a few cases without
causing code duplication.

Cheers,
Ben.

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