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Message-ID: <F6B0FA94-D7B5-43B1-AD38-A6212B5E58DA@zytor.com> Date: Fri, 04 Dec 2015 14:35:38 -0800 From: "H. Peter Anvin" <hpa@...or.com> To: Borislav Petkov <bp@...en8.de>, Andi Kleen <ak@...ux.intel.com> CC: Ingo Molnar <mingo@...nel.org>, linux-tip-commits@...r.kernel.org, vincent.weaver@...ne.edu, eranian@...gle.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 On December 4, 2015 10:30:17 AM PST, Borislav Petkov <bp@...en8.de> wrote: >On Fri, Dec 04, 2015 at 10:28:02AM -0800, Andi Kleen wrote: >> Because making them GPL would prevent any non GPL driver from >> using MSRs with tracing compiled in, which doesn't make any sense. > >I know what EXPORT_SYMBOL_GPL means - I'm questioning the need of >making >them available to non-GPL drivers. How about this: it is easy too easy to hard code MSR accesses, and the last things we need is alien non-GPL drivers doing their own low-level hacks bypassing these facilities. -- Sent from my Android device with K-9 Mail. Please excuse brevity and formatting. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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