linux-kernel - Re: [PATCH] branch tracer: fix freak link error

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Message-ID: <2535125.MjntUgx4sh@wuerfel>
Date:	Mon, 15 Feb 2016 21:15:39 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Nicolas Pitre <nicolas.pitre@...aro.org>,
	Mauro Carvalho Chehab <mchehab@....samsung.com>,
	Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH] branch tracer: fix freak link error

On Monday 15 February 2016 12:47:46 Steven Rostedt wrote:
> On Fri, 12 Feb 2016 22:26:42 +0100
> Arnd Bergmann <arnd@...db.de> wrote:
> 
> > In my randconfig tests, I came across a bug that involves several
> > components:
> > 
> >
> 
> [..]
> 
> > 
> > This patch avoids the problem by changing __trace_if() to check
> > whether the condition is known at compile-time to be nonzero, rather
> > than checking whether it is actually a constant.
> > 
> > I see this one link error in roughly one out of 1600 randconfig builds
> > on ARM, and the patch fixes all known instances.
> > 
> > Signed-off-by: Arnd Bergmann <arnd@...db.de>
> > Fixes: ab3c9c686e22 ("branch tracer, intel-iommu: fix build with CONFIG_BRANCH_TRACER=y")
> 
> Want me to pull this into my queue? I have another patch I need to send
> to Linus and I can add this in that pull request.

That would be nice, yes.

Do you also want to add a 'Cc: stable@...r.kernel.org' tag?

	Arnd