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Date: Fri, 5 Sep 2008 22:02:22 +0100 (BST) From: "Maciej W. Rozycki" <macro@...ux-mips.org> To: Ingo Molnar <mingo@...e.hu> cc: Suresh Siddha <suresh.b.siddha@...el.com>, "hpa@...or.com" <hpa@...or.com>, "tglx@...utronix.de" <tglx@...utronix.de>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Yinghai Lu <yhlu.kernel@...il.com> Subject: Re: [patch 1/2] x2apic: fix reserved APIC register accesses in print_local_APIC() On Fri, 5 Sep 2008, Ingo Molnar wrote: > hm, is the remote read debug output, now that it's not present in CPUs > made in the past 5 years or so, really that important? Maybe, maybe not, but if included it should be done correctly or otherwise anotated why done differently. Otherwise people may get confused and propagate incorrect information as not everybody is inclined to chase and cross-refer the relevant piece of documentation for each and every bit of code fiddling with hardware. In fact the requirement to do so reduces trust in code it applies to and makes long-term maintenance a nightmare. This observation applies universally of course. I tend to look at code without referring to documentation too as most often than not this is much more effective time-wise. Maciej -- 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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