linux-kernel - Re: [PATCH v2 1/2] Provide in-kernel headers for making it easy to extend the kernel

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Date:   Tue, 19 Feb 2019 09:05:31 +0300
From:   Alexey Dobriyan <adobriyan@...il.com>
To:     joel@...lfernandes.org
Cc:     linux-kernel@...r.kernel.org, alexei.starovoitov@...il.com
Subject: Re: [PATCH v2 1/2] Provide in-kernel headers for making it easy to
 extend the kernel

> /proc/kheaders.txz

This is gross.

> The feature is also buildable as a module just in case the user desires
> it not being part of the kernel image. This makes it possible to load
> and unload the headers on demand. A tracing program, or a kernel module
> builder can load the module, do its operations, and then unload the
> module to save kernel memory.

Please explain how keeping headers on the filesystem is not OK due
to "licensing and other issues" but keeping a module on the filesystem
is OK.

> > I can route it via bpf-next tree if there are no objections.

Please don't.

IKHD_ST IKHD_ED are bogus artifacts as others mentioned.
proc_create(S_IFREG) is redundant.
seq_file.h is not needed as is THIS_MODULE.
I'd say such data should live in their own section for easy extraction
with "objdump -j", something /proc/config.gz never did.