linux-kernel - Re: [PATCH v6 01/13] module: Move all into module/

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Date:   Tue, 22 Feb 2022 17:16:19 -0800
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     Aaron Tomlin <atomlin@...hat.com>,
        Thiago Jung Bauermann <bauerman@...ux.ibm.com>,
        Mimi Zohar <zohar@...ux.ibm.com>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Philipp Rudo <prudo@...ux.ibm.com>
Cc:     Christophe Leroy <christophe.leroy@...roup.eu>,
        "cl@...ux.com" <cl@...ux.com>,
        "pmladek@...e.com" <pmladek@...e.com>,
        "mbenes@...e.cz" <mbenes@...e.cz>,
        "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "jeyu@...nel.org" <jeyu@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-modules@...r.kernel.org" <linux-modules@...r.kernel.org>,
        "live-patching@...r.kernel.org" <live-patching@...r.kernel.org>,
        "atomlin@...mlin.com" <atomlin@...mlin.com>,
        "ghalat@...hat.com" <ghalat@...hat.com>,
        "allen.lkml@...il.com" <allen.lkml@...il.com>,
        "joe@...ches.com" <joe@...ches.com>,
        "msuchanek@...e.de" <msuchanek@...e.de>,
        "oleksandr@...alenko.name" <oleksandr@...alenko.name>
Subject: Re: [PATCH v6 01/13] module: Move all into module/

On Tue, Feb 22, 2022 at 10:48:00AM +0000, Aaron Tomlin wrote:
> On Mon 2022-02-21 12:21 +0000, Christophe Leroy wrote:
> > Le 18/02/2022 à 22:24, Aaron Tomlin a écrit :
> > >   kernel/{module_signature.c => module/signature.c}   | 0
> > Keeping it outside of kernel/module/ would allow to conditionaly build
> > entire kernel/module/ based of CONFIG_MODULES and then avoid all checks
> > against CONFIG_MODULES which look misleading at times.
> 
> Luis,
> 
> What is your opinion on this? Indeed, mod_check_sig() is used by code
> outside of kernel/module/ too i.e. ima_read_modsig(); albeit, I believe it
> does make sense to keep it under kernel/module/ since the function in
> question is used to review a given module's signature anyway.

How about:

obj-$(CONFIG_MODULE_SIG_FORMAT) += module/module_signature.o 

  Luis