Re: [RFC] Provide in-kernel headers for making it easy to extend the kernel

From: hpa
Date: Thu Mar 07 2019 - 18:42:05 EST


On March 7, 2019 3:12:07 PM PST, Joel Fernandes <joel@xxxxxxxxxxxxxxxxx> wrote:
>Enrico,
>
>On Thu, Mar 07, 2019 at 11:11:22PM +0100, Enrico Weigelt, metux IT
>consult wrote:
>> On 07.03.19 21:55, Greg KH wrote:
>>
>> > Ick, no, no more squashfs please, let's just kill that mess once
>and for
>> > all :)
>>
>> okay, then: s/squashfs/whatever_fs_image_or_archive_you_like/;
>>
>> > Again, putting this in a simple compressed tar image allows anyone
>to do
>> > whatever they need to with this. If they want a full filesystem,
>> > uncompress it and use it there. If they just want it in-memory
>where
>> > they can uncompress it and then discard it, that works too.
>>
>> And let me stress the point: doesn't need any kernel changes at all,
>> when it's just a file in the same place where the .ko's live.
>
>Yes, but you're missing the point that some people would also opt to
>build it
>into the kernel during their development/debugging (Config=y). For such
>folks, they don't want to update the FS with anything during debug runs
>either. Your "whole same place where the .ko lives" doesn't address
>Daniel's
>usecase. You may say "initrd", but this is a much cleaner solution to
>that
>IMO. There is no initrd needed and the path to the header files will be
>at a
>standard location that is already pre-decided by the kernel.
>
>As Greg said, you are welcome to keep it disabled for yourself if you
>don't
>want it. This doesn't affect anyone else who doesn't use it.

You do know that initrd can be built into the kernel, right?
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