netdev - Re: [RFC 0/6] Regressions for "imply" behavior change

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Message-ID: <20200416180536.GW5100@ziepe.ca>
Date:   Thu, 16 Apr 2020 15:05:36 -0300
From:   Jason Gunthorpe <jgg@...pe.ca>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Jani Nikula <jani.nikula@...ux.intel.com>,
        Saeed Mahameed <saeedm@...lanox.com>,
        "narmstrong@...libre.com" <narmstrong@...libre.com>,
        "masahiroy@...nel.org" <masahiroy@...nel.org>,
        "Laurent.pinchart@...asonboard.com" 
        <Laurent.pinchart@...asonboard.com>,
        "leon@...nel.org" <leon@...nel.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "linux-renesas-soc@...r.kernel.org" 
        <linux-renesas-soc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "nico@...xnic.net" <nico@...xnic.net>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "kieran.bingham+renesas@...asonboard.com" 
        <kieran.bingham+renesas@...asonboard.com>,
        "a.hajda@...sung.com" <a.hajda@...sung.com>,
        "jonas@...boo.se" <jonas@...boo.se>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "airlied@...ux.ie" <airlied@...ux.ie>,
        "jernej.skrabec@...l.net" <jernej.skrabec@...l.net>
Subject: Re: [RFC 0/6] Regressions for "imply" behavior change

On Thu, Apr 16, 2020 at 05:58:31PM +0200, Arnd Bergmann wrote:
> On Thu, Apr 16, 2020 at 4:52 PM Jason Gunthorpe <jgg@...pe.ca> wrote:
> > On Thu, Apr 16, 2020 at 02:38:50PM +0200, Arnd Bergmann wrote:
> > > On Thu, Apr 16, 2020 at 12:17 PM Jani Nikula <jani.nikula@...ux.intel.com> wrote:
> > > > Of course, this is all just talk until someone(tm) posts a patch
> > > > actually making the change. I've looked at the kconfig tool sources
> > > > before; not going to make the same mistake again.
> > >
> > > Right. OTOH whoever implements it gets to pick the color of the
> > > bikeshed. ;-)
> >
> > I hope someone takes it up, especially now that imply, which
> > apparently used to do this, doesn't any more :)
> 
> The old 'imply' was something completely different, it was more of a
> 'try to select if you can so we can assume it's there, but give up
> if it can only be a module and we need it to be built-in".

But it seems to have done this as a side-effect, and drivers were
relying on that, otherwise this series wouldn't exist..

Jason