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

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Message-ID: <1321363643.9105.13.camel@marge.simson.net>
Date:	Tue, 15 Nov 2011 14:27:23 +0100
From:	Mike Galbraith <efault@....de>
To:	Steven Rostedt <rostedt@...dmis.org>
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 07:23 -0500, Steven Rostedt wrote:

> 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.

Ah.  Doesn't matter though.  I downloaded their latest, tried to build
it with EXPORT_SYMBOL(migrate_enable/disable) ..

FATAL: modpost: GPL-incompatible module nvidia.ko uses GPL-only symbol '__rt_mutex_init'

With that exported, the thing builds and runs, but rt_mutex_foo exports
appear to be intentionally GPL only, so it's "go fish" for nVidia.

	-Mike

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