Message-ID: <4FCCCD5D.6010005@zytor.com>
Date: Mon, 04 Jun 2012 07:59:41 -0700
From: "H. Peter Anvin" <hpa@zytor.com>
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To: Don Zickus <dzickus@redhat.com>
CC: Witold Baryluk <baryluk@smp.if.uj.edu.pl>, linux-kernel@vger.kernel.org,
        Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>,
        x86@kernel.org
Subject: Re: WARNING: arch/x86/built-in.o: Section mismatch in reference from
 the variable test_nmi_ipi_callback_na to function .ini.text:test_nmi_ipi_callback
References: <20120602161502.GW16584@smp.if.uj.edu.pl> <20120604143643.GJ32472@redhat.com>
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On 06/04/2012 07:36 AM, Don Zickus wrote:
> 
> Basically the test registers two nmi_handlers, run some tests, and
> then unregisters them.  Those handlers are what the compiler seems to be
> complaining about.  I do not know what magic to pass the compiler to let
> it know that both of the handlers will be unregistered before the init
> section is destroyed.
> 
> Perhaps I should tag those callbacks with __ref? I am not sure the right
> thing to do here.
> 

Using __ref is the right thing, although __ref is hard to use right...

	-hpa


-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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