linux-kernel - Re: [Linaro-acpi] [PATCH 1/2] ARM64 / ACPI: Ignore the return error value of acpi_map_gic_cpu

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Date:	Tue, 31 Mar 2015 09:42:40 +0800
From:	Hanjun Guo <guohanjun@...wei.com>
To:	Al Stone <al.stone@...aro.org>, Hanjun Guo <hanjun.guo@...aro.org>,
	"Will Deacon" <will.deacon@....com>,
	Catalin Marinas <catalin.marinas@....com>
CC:	<linaro-acpi@...ts.linaro.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	<linux-kernel@...r.kernel.org>, <linux-acpi@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [Linaro-acpi] [PATCH 1/2] ARM64 / ACPI: Ignore the return error
 value of acpi_map_gic_cpu_interface()

On 2015/3/31 5:53, Al Stone wrote:
> On 03/27/2015 06:14 AM, Hanjun Guo wrote:
>> MADT table scannig will stopped once it gets the errors
>> returned by the handler, which is acpi_map_gic_cpu_interface()
>> in for ARM64, so Ignore the return error value to search for
>> all enabled CPUs for SMP init.
> I think the comment should say something like:
>
> MADT scanning will stop when it gets an error from the handler,
> acpi_map_gic_cpu_interface(), on arm64.  However, we need to
> find all of the enabled CPUs so that SMP initialization can work
> properly.  So, if an error occurs in this case, ignore it for
> now so that we can find all of the enabled CPUs.
>
> Is that what you meant, Hanjun?

That's exactly what I mean, you describe it much clearer :)

Thanks
Hanjun

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