Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:7 as permitted sender) client-ip=2620:137:e000::3:7;
Date:   Sat, 30 Sep 2023 17:52:17 +0100
From:   Phillip Potter <phil@philpotter.co.uk>
To:     Joel Granados <j.granados@samsung.com>
Cc:     Luis Chamberlain <mcgrof@kernel.org>, willy@infradead.org,
        josh@joshtriplett.org, Kees Cook <keescook@chromium.org>,
        Clemens Ladisch <clemens@ladisch.de>,
        Arnd Bergmann <arnd@arndb.de>, Juergen Gross <jgross@suse.com>,
        Stefano Stabellini <sstabellini@kernel.org>,
        Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>,
        Jiri Slaby <jirislaby@kernel.org>,
        "James E.J. Bottomley" <jejb@linux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@oracle.com>,
        Doug Gilbert <dgilbert@interlog.com>,
        Sudip Mukherjee <sudipm.mukherjee@gmail.com>,
        Jason Gunthorpe <jgg@ziepe.ca>,
        Leon Romanovsky <leon@kernel.org>,
        Corey Minyard <minyard@acm.org>, Theodore Ts'o <tytso@mit.edu>,
        "Jason A. Donenfeld" <Jason@zx2c4.com>,
        David Ahern <dsahern@kernel.org>,
        "David S. Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        Robin Holt <robinmholt@gmail.com>,
        Steve Wahl <steve.wahl@hpe.com>,
        Russ Weight <russell.h.weight@intel.com>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Song Liu <song@kernel.org>,
        "K. Y. Srinivasan" <kys@microsoft.com>,
        Haiyang Zhang <haiyangz@microsoft.com>,
        Wei Liu <wei.liu@kernel.org>, Dexuan Cui <decui@microsoft.com>,
        Jani Nikula <jani.nikula@linux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@intel.com>,
        Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>,
        David Airlie <airlied@gmail.com>,
        Daniel Vetter <daniel@ffwll.ch>, linux-kernel@vger.kernel.org,
        xen-devel@lists.xenproject.org, linux-serial@vger.kernel.org,
        linux-scsi@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        linux-rdma@vger.kernel.org,
        openipmi-developer@lists.sourceforge.net, netdev@vger.kernel.org,
        linux-raid@vger.kernel.org, linux-hyperv@vger.kernel.org,
        intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: Re: [PATCH 01/15] cdrom: Remove now superfluous sentinel element
 from ctl_table array
Message-ID: <ZRhSQaNDJih5xABq@equinox>
References: <20230928-jag-sysctl_remove_empty_elem_drivers-v1-0-e59120fca9f9@samsung.com>
 <20230928-jag-sysctl_remove_empty_elem_drivers-v1-1-e59120fca9f9@samsung.com>
 <CGME20230928133705eucas1p182bd81a8e6aff530e43f9b0746a24eaa@eucas1p1.samsung.com>
 <2023092855-cultivate-earthy-4d25@gregkh>
 <20230929121730.bwzhrpaptf45smfy@localhost>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20230929121730.bwzhrpaptf45smfy@localhost>
Precedence: bulk

On Fri, Sep 29, 2023 at 02:17:30PM +0200, Joel Granados wrote:
> On Thu, Sep 28, 2023 at 03:36:55PM +0200, Greg Kroah-Hartman wrote:
> > On Thu, Sep 28, 2023 at 03:21:26PM +0200, Joel Granados via B4 Relay wrote:
> > > From: Joel Granados <j.granados@samsung.com>
> > > 
> > > This commit comes at the tail end of a greater effort to remove the
> > > empty elements at the end of the ctl_table arrays (sentinels) which
> > > will reduce the overall build time size of the kernel and run time
> > > memory bloat by ~64 bytes per sentinel (further information Link :
> > > https://lore.kernel.org/all/ZO5Yx5JFogGi%2FcBo@bombadil.infradead.org/)
> > > 
> > > Remove sentinel element from cdrom_table
> > > 
> > > Signed-off-by: Joel Granados <j.granados@samsung.com>
> > > ---
> > >  drivers/cdrom/cdrom.c | 3 +--
> > >  1 file changed, 1 insertion(+), 2 deletions(-)
> > > 
> > > diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
> > > index cc2839805983..451907ade389 100644
> > > --- a/drivers/cdrom/cdrom.c
> > > +++ b/drivers/cdrom/cdrom.c
> > > @@ -3654,8 +3654,7 @@ static struct ctl_table cdrom_table[] = {
> > >  		.maxlen		= sizeof(int),
> > >  		.mode		= 0644,
> > >  		.proc_handler	= cdrom_sysctl_handler
> > > -	},
> > > -	{ }
> > > +	}
> > 
> > You should have the final entry as "}," so as to make any future
> > additions to the list to only contain that entry, that's long been the
> > kernel style for lists like this.
> Will send a V2 with this included. Thx.
> 
> > 
> > So your patches will just remove one line, not 2 and add 1, making it a
> > smaller diff.
> indeed.
> 
> > 
> > thanks,
> > 
> > greg k-h
> 
> -- 
> 
> Joel Granados

Hi Joel,

Thank you for your patch. I look forward to seeing V2, and will be happy
to review it.

Regards,
Phil