linux-kernel - Re: [tip:perf/core] x86, tracing, perf: Add trace point for MSR accesses

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Date:	Fri, 4 Dec 2015 10:28:02 -0800
From:	Andi Kleen <ak@...ux.intel.com>
To:	Borislav Petkov <bp@...en8.de>
Cc:	Ingo Molnar <mingo@...nel.org>, linux-tip-commits@...r.kernel.org,
	vincent.weaver@...ne.edu, eranian@...gle.com, hpa@...or.com,
	efault@....de, peterz@...radead.org, jolsa@...hat.com,
	torvalds@...ux-foundation.org, tglx@...utronix.de,
	rostedt@...dmis.org, acme@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [tip:perf/core] x86, tracing, perf: Add trace point for MSR
 accesses

> Any particular reason why those are EXPORT_SYMBOL and not
> EXPORT_SYMBOL_GPL?

Because making them GPL would prevent any non GPL driver from
using MSRs with tracing compiled in, which doesn't make any sense.

-Andi
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