linux-kernel - How to have a 'bpf.sig_enforce' command line arg in kernel/bpf/syscall.c ?

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Message-ID: <20201202141246.GA96752@kernel.org>
Date:   Wed, 2 Dec 2020 11:12:46 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: How to have a 'bpf.sig_enforce' command line arg in
 kernel/bpf/syscall.c ?

If I use:

module_param_named(bpf.sig_enforce, sig_enforce, bool_enable_only, 0644);

It explodes and if I do as before:

module_param(sig_enforce, sig_enforce, bool_enable_only, 0644);

Then it ends up as 'syscall.sig_enforce'.

The closest I got so far was:

commit aeacb019b61c4ea7689085574bd03d2c0810f119
Author: Masahiro Yamada <yamada.masahiro@...ionext.com>
Date:   Mon Mar 19 18:01:24 2018 +0900

    kbuild: define KBUILD_MODNAME even if multiple modules share objects

Is there some way to set that modname var to 'bpf' in
kernel/bpf/syscall.c?

- Arnaldo