Re: [PATCH 3/4] EFI: Add support for variables longer than 1024 bytes

[Mike Waychison]

On Wed, Dec 14, 2011 at 3:00 PM, H. Peter Anvin <hpa@xxxxxxxxx> wrote:
> On 12/14/2011 02:57 PM, Mike Waychison wrote:
>>
>> Well,l we could *not* support returning all the data field for
>> datasize > 1024, and simply truncate the field.  We are limited by
>> PAGE_SIZE by sysfs here anyway (so we don't really want to have a
>> variable size memcpy in efivar_show_raw).
>>
>
> That may be the biggest reason to avoid sysfs.  As far as I know sysfs
> doesn't allow seq_file to be used.
>

Completely agreed.  I don't think a seq_file is warranted in this case
in particular, but the dummification of the interfaces in sysfs sure
makes it hard to do anything that isn't a "single value string".
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