linux-kernel - Re: [PATCH 07/14] sysctl: Add size arg to __register_sysctl

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Message-ID: <20230728161153.7pnkyj65mcjetrsy@localhost>
Date:   Fri, 28 Jul 2023 18:11:53 +0200
From:   Joel Granados <j.granados@...sung.com>
To:     Simon Horman <horms@...nel.org>
CC:     <mcgrof@...nel.org>, Kees Cook <keescook@...omium.org>,
        Iurii Zaikin <yzaikin@...gle.com>, <willy@...radead.org>,
        <josh@...htriplett.org>, <linux-kernel@...r.kernel.org>,
        <linux-fsdevel@...r.kernel.org>
Subject: Re: [PATCH 07/14] sysctl: Add size arg to __register_sysctl_init

On Fri, Jul 28, 2023 at 12:56:36PM +0200, Simon Horman wrote:
> On Wed, Jul 26, 2023 at 04:06:27PM +0200, Joel Granados wrote:
> > This is part of the effort to remove the sentinel element from the
> > ctl_table array at register time. We add a size argument to
> > __register_sysctl_init and modify the register_sysctl_init macro to
> > calculate the array size with ARRAY_SIZE. The original callers do not
> > need to be updated as they will go through the new macro.
> > 
> > Signed-off-by: Joel Granados <j.granados@...sung.com>
> > ---
> >  fs/proc/proc_sysctl.c  | 11 ++---------
> >  include/linux/sysctl.h |  5 +++--
> >  2 files changed, 5 insertions(+), 11 deletions(-)
> > 
> > diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
> > index c04293911e7e..6c0721cd35f3 100644
> > --- a/fs/proc/proc_sysctl.c
> > +++ b/fs/proc/proc_sysctl.c
> > @@ -1444,16 +1444,9 @@ EXPORT_SYMBOL(register_sysctl_sz);
> >   * Context: if your base directory does not exist it will be created for you.
> >   */
> >  void __init __register_sysctl_init(const char *path, struct ctl_table *table,
> > -				 const char *table_name)
> > +				 const char *table_name, size_t table_size)
> 
> Hi Joel,
> 
> in the same vein as my comment on another patch.
> Please add table_size to the kernel doc for this function.
Will do.

-- 

Joel Granados

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