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Date:   Wed, 2 Mar 2022 16:26:22 +0000
From:   Daniel Thompson <daniel.thompson@linaro.org>
To:     Aaron Tomlin <atomlin@redhat.com>
Cc:     mcgrof@kernel.org, christophe.leroy@csgroup.eu, pmladek@suse.com,
        cl@linux.com, mbenes@suse.cz, akpm@linux-foundation.org,
        jeyu@kernel.org, linux-kernel@vger.kernel.org,
        linux-modules@vger.kernel.org, void@manifault.com,
        atomlin@atomlin.com, allen.lkml@gmail.com, joe@perches.com,
        msuchanek@suse.de, oleksandr@natalenko.name,
        jason.wessel@windriver.com
Subject: Re: [PATCH v9 13/14] module: Move kdb_modules list out of core code
Message-ID: <20220302162622.z5wxbdmxh2pqh6cb@maple.lan>
References: <20220228234322.2073104-1-atomlin@redhat.com>
 <20220228234322.2073104-14-atomlin@redhat.com>
 <20220302161917.gx5icfszakoye4uh@maple.lan>
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On Wed, Mar 02, 2022 at 04:19:17PM +0000, Daniel Thompson wrote:
> On Mon, Feb 28, 2022 at 11:43:21PM +0000, Aaron Tomlin wrote:
> > No functional change.
> > 
> > This patch migrates kdb_modules list to core kdb code
> > since the list of added/or loaded modules is no longer
> > private.
> > 
> > Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
> > Signed-off-by: Aaron Tomlin <atomlin@redhat.com>
> > ---
> >  kernel/debug/kdb/kdb_main.c    | 5 +++++
> >  kernel/debug/kdb/kdb_private.h | 4 ----
> >  kernel/module/main.c           | 4 ----
> >  3 files changed, 5 insertions(+), 8 deletions(-)
> > 
> > diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
> > index 0852a537dad4..5369bf45c5d4 100644
> > --- a/kernel/debug/kdb/kdb_main.c
> > +++ b/kernel/debug/kdb/kdb_main.c
> > @@ -59,6 +59,11 @@ EXPORT_SYMBOL(kdb_grepping_flag);
> >  int kdb_grep_leading;
> >  int kdb_grep_trailing;
> >  
> > +#ifdef CONFIG_MODULES
> > +extern struct list_head modules;

Actually thinking a bit harder and trying
`git grep '#include .*[.][.]' kernel/` (which finds some prior art) I
wonder if we even want the extern or whether
`#include "../../module/internal.h"` would be more robust.


Daniel.


> > +static struct list_head *kdb_modules = &modules; /* kdb needs the list of modules */
> 
> If modules is no longer static then why do we kdb_modules at all?
> kdb_modules is used exactly once and it can now simply be replaced
> with &modules.
> 
> 
> Daniel.