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Date: Thu, 21 Jul 2011 12:27:05 +0800 From: Huang Ying <ying.huang@...el.com> To: Andi Kleen <andi@...stfloor.org> CC: Len Brown <lenb@...nel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "Luck, Tony" <tony.luck@...el.com>, "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>, Matthew Garrett <mjg@...hat.com> Subject: Re: [BUGFIX] ACPI, APEI, EINJ Param support is disabled by default On 07/21/2011 12:16 PM, Andi Kleen wrote: > On Thu, Jul 21, 2011 at 10:54:13AM +0800, Huang Ying wrote: >> On 07/21/2011 10:42 AM, Andi Kleen wrote: >>>> >>>> +static bool param_extension; >>>> +module_param(param_extension, bool, 0); >>> >>> Make it 0644, then it can be changed at runtime. No need to require a reboot. >> >> Normally, EINJ is compiled as module, so we can change it at load time >> without a reboot. > > Ok. > >> >> Do we need the real runtime switching capability? > > I usually do that with modparams when it's possible. After all it's very > simple and doesn't cost anything. To avoid confuse user, the param1/param2 files are created only if param_extension=y is specified. So making modprams changeable in run time may make situation a little complex. Best Regards, Huang Ying -- 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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