linux-kernel - Re: [Linaro-acpi] [PATCH v3 1/5] ACPI: add in a bad_madt_entry() function to eventually replace the macro

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Date:	Thu, 10 Sep 2015 08:13:36 -0600
From:	Al Stone <ahs3@...hat.com>
To:	Graeme Gregory <graeme.gregory@...aro.org>,
	Al Stone <al.stone@...aro.org>
Cc:	linux-acpi@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linaro-kernel@...ts.linaro.org, linux-ia64@...r.kernel.org,
	patches@...aro.org, linux-pm@...r.kernel.org,
	linaro-acpi@...ts.linaro.org,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	linux-kernel@...r.kernel.org, Len Brown <lenb@...nel.org>
Subject: Re: [Linaro-acpi] [PATCH v3 1/5] ACPI: add in a bad_madt_entry()
 function to eventually replace the macro

On 09/10/2015 06:14 AM, Graeme Gregory wrote:
> On Wed, Sep 09, 2015 at 03:09:47PM -0600, Al Stone wrote:
>> The existing BAD_MADT_ENTRY macro only checks that the size of the data
>> structure for an MADT subtable matches the length entry in the subtable.
>> This is, unfortunately, not reliable.  Nor, as it turns out, does it have
>> anything to do with what the length should be in any particular table.
>>

[snip...]
  			if (handler(entry, table_end))
>>  				return -EINVAL;
>>  
>> @@ -349,7 +592,7 @@ int __init acpi_table_parse(char *id, acpi_tbl_table_handler handler)
>>  		return -ENODEV;
>>  }
>>  
>> -/* 
>> +/*
>>   * The BIOS is supposed to supply a single APIC/MADT,
>>   * but some report two.  Provide a knob to use either.
>>   * (don't you wish instance 0 and 1 were not the same?)
> 
> Unrelated whitespace change snuck in here.
> 
> Graeme

Bah.  Nice catch; not sure how that got in there, but duly noted.

-- 
ciao,
al
-----------------------------------
Al Stone
Software Engineer
Red Hat, Inc.
ahs3@...hat.com
-----------------------------------
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