Re: [PATCH 01/15] cdrom: Remove now superfluous sentinel element from ctl_table array

Phillip Potter
2023-09-30T16:52:31Z

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