linux-kernel - Re: [PATCH] x86/mm: Export cpu

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Message-ID: <alpine.DEB.2.11.1509222056210.5606@nanos>
Date:	Tue, 22 Sep 2015 20:57:41 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Andy Lutomirski <luto@...capital.net>
cc:	James Forcier <csssuf@...suf.net>, Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, X86 ML <x86@...nel.org>,
	"Juergen Gross <jgross@...e.com, Toshi Kani" <toshi.kani@...com>,
	Jan Beulich <JBeulich@...e.com>,
	"Luis R. Rodriguez" <mcgrof@...e.com>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86/mm: Export cpu_tlbstate as non-GPL symbol

On Tue, 22 Sep 2015, Andy Lutomirski wrote:
> On Tue, Sep 22, 2015 at 11:51 AM, James Forcier <csssuf@...suf.net> wrote:
> > Exporting cpu_tlbstate as a GPL symbol was introduced in 1e02ce4c; however, this
> > breaks non-GPL modules which need to link against it, particularly the AMD
> > Catalyst drivers.
> 
> What is AMD Catalyst doing with cpu_tlbstate?

Fiddling with it behind the kernels back. Out of tree graphic drivers
always have their special needs. Just lookup the discussions about
unexporting init_mm ....

Thanks,

	tglx
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