linux-kernel - Re: [PATCH v2 10/14] [net-next] make legacy ISA probe optional

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Message-ID: <CAK8P3a1qba2OxymYJtKyc5-x5rSD2_jcrCXyw2rV7pX+o0vdxw@mail.gmail.com>
Date:   Tue, 7 Sep 2021 15:19:42 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     netdev <netdev@...r.kernel.org>, Arnd Bergmann <arnd@...db.de>,
        "David S. Miller" <davem@...emloft.net>,
        "Maciej W. Rozycki" <macro@...am.me.uk>,
        Alexei Starovoitov <ast@...nel.org>,
        Andrew Lunn <andrew@...n.ch>, Andrii Nakryiko <andriin@...com>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Doug Berger <opendmb@...il.com>,
        Eric Dumazet <edumazet@...gle.com>,
        Finn Thain <fthain@...egraphics.com.au>,
        Florian Fainelli <f.fainelli@...il.com>,
        Jakub Kicinski <kuba@...nel.org>, Jessica Yu <jeyu@...nel.org>,
        Michael Schmitz <schmitzmic@...il.com>,
        Paul Gortmaker <paul.gortmaker@...driver.com>,
        Sam Creasey <sammy@...my.net>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        bcm-kernel-feedback-list <bcm-kernel-feedback-list@...adcom.com>
Subject: Re: [PATCH v2 10/14] [net-next] make legacy ISA probe optional

On Tue, Sep 7, 2021 at 10:24 AM Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
> On Wed, Aug 11, 2021 at 4:50 PM Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
> > On Tue, Aug 3, 2021 at 1:41 PM Arnd Bergmann <arnd@...nel.org> wrote:
> > > From: Arnd Bergmann <arnd@...db.de>
> > >
> > > There are very few ISA drivers left that rely on the static probing from
> > > drivers/net/Space.o. Make them all select a new CONFIG_NETDEV_LEGACY_INIT
> > > symbol, and drop the entire probe logic when that is disabled.
> > >
> > > The 9 drivers that are called from Space.c are the same set that
> > > calls netdev_boot_setup_check().
> > >
> > > Signed-off-by: Arnd Bergmann <arnd@...db.de>
> >
> > > --- a/drivers/net/ethernet/8390/ne.c
> > > +++ b/drivers/net/ethernet/8390/ne.c
> > > @@ -951,6 +951,7 @@ static int __init ne_init(void)
> > >  }
> > >  module_init(ne_init);
> > >
> > > +#ifdef CONFIG_NETDEV_LEGACY_INIT
> > >  struct net_device * __init ne_probe(int unit)
> > >  {
> > >         int this_dev;
> > > @@ -991,6 +992,7 @@ struct net_device * __init ne_probe(int unit)
> > >
> > >         return ERR_PTR(-ENODEV);
> > >  }
> > > +#endif
> > >  #endif /* MODULE */
> >
> > My rbtx4927 build log says:
> >
> > drivers/net/ethernet/8390/ne.c:909:20: warning: ‘ne_add_devices’
> > defined but not used [-Wunused-function]
>
> Same for atari_defconfig.

Sorry about that. I made the patch when you first reported it, and I was
sure I had sent it, but apparently not. Sent it now.

       Arnd