linux-kernel - Re: [PATCH 2/2] Compile error with allmodconfig and CONFIG_PREEMPT_RT

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Date:	Tue, 15 Nov 2011 07:23:22 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Mike Galbraith <efault@....de>
Cc:	John Kacur <jkacur@...hat.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	lkml <linux-kernel@...r.kernel.org>,
	rt-users <linux-rt-users@...r.kernel.org>
Subject: Re: [PATCH 2/2] Compile error with allmodconfig and
 CONFIG_PREEMPT_RT_FULL=y

On Tue, 2011-11-15 at 06:22 +0100, Mike Galbraith wrote:

> > If we go that route, we might as well make everything
> > EXPORT_SYMBOL_GPL(), and be damn to those that use nVidia.
> 
> EXPORT_SYMBOL_GPL(migrate_disable) alone screws nVidia users, no?
> 
> I have an RT user who has no other viable choice than nVidia.  If the
> above is true, that user will end up stuck at 2.6.33-rt until we get a
> driver that actually works... or they deem linux to be a non-solution.

Right, migrate_disable() should not have been an EXPORT_SYMBOL_GPL(), as
it is a helper functions that is also exported as EXPORT_SYMBOL(). It
shouldn't be called directly anyway, even by code in the kernel proper.

-- Steve


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