linux-kernel - Re: [PATCH] sched: Remove nested extern

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Message-ID: <20140922190128.GA2805@worktop.programming.kicks-ass.net>
Date:	Mon, 22 Sep 2014 21:01:28 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Mark D Rustad <mark.d.rustad@...el.com>
Cc:	sparse@...isli.org, linux-kernel@...r.kernel.org,
	richard.weinberger@...il.com, linux-sparse@...r.kernel.org,
	mingo@...hat.com, jeffrey.t.kirsher@...el.com,
	computersforpeace@...il.com
Subject: Re: [PATCH] sched: Remove nested extern

On Mon, Sep 22, 2014 at 10:55:11AM -0700, Mark D Rustad wrote:
> Avoid W=2 nested-externs warning by moving the nested extern to
> a normal extern. This eliminates that warning which is generated
> for every inclusion of sched.h in a kernel build when W=2 is used.
> This also removes a point of maintenance if the definition of
> delayacct_on were ever to change.
> 

Yeah, so why is that warning worth using? Just disable the warn if
you're bothered by it.
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