Re: [Linaro-acpi] [RFC] ACPI: Add new function to get table entries

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On 20 March 2014 10:06, Tomasz Nowicki <tomasz.nowicki@xxxxxxxxxx> wrote:
> On 20.03.2014 14:27, Ashwin Chaugule wrote:
>>
>> On 20 March 2014 06:16, Tomasz Nowicki <tomasz.nowicki@xxxxxxxxxx> wrote:
>>
>>>>> +    return acpi_parse_entries(table_header->length, handler,
>>>>> table_header,
>>>>> +            entry_id, max_entries);
>>>
>>>
>>> Also, first argument of acpi_parse_entries() expect subtable start point
>>> offset, but now it points to the end of table.
>>>
>>
>>
>> Not sure what you mean. First arg of acpi_parse_entries expects
>> table_size, not an offset.
>
>
> As I mentioned in previous mail, first args of acpi_parse_entries will lead
> us to first MADT entry list. By passing table_header->length we will get at
> the end of MADT entry list. IMO, we should use table_size (snd argument of
> acpi_table_parse_entries()) instead of table_header->length.
>

Right. I get the difference between tbl_size and table_header->length.
But we need to rethink this apci_parse_entries() function and its use
case again. If the caller is expected to pass tbl_size, then we're
back full circle to using acpi_get_table_with_size() in the caller,
which is kinda self defeating. :)

Ashwin
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