Re: [PATCH 1/2] libfdt: overlay: Allow resolving phandle symbols

[Geert Uytterhoeven <geert@linux-m68k.org>]

Hi David,

On Mon, Sep 23, 2024 at 10:41 AM David Gibson
<david@gibson.dropbear.id.au> wrote:
> On Mon, Sep 23, 2024 at 10:22:03AM +0200, Geert Uytterhoeven wrote:
> > On Mon, Sep 23, 2024 at 5:41 AM David Gibson
> > <david@gibson.dropbear.id.au> wrote:
> > > So, essentially you're just adding new labels as aliases to existing
> > > labels?
> > >
> > > Ok, I can see at least two ways of doing that which I think are a more
> > > natural fit than allowing symbols to be phandles.
> >
> > [...]
> >
> > > # Method 2: /aliases
> >
> > Does the (Linux) DT overlay code support updating aliases?
> > Last time I needed that (almost a decade ago), it did not.
>
> Huh.  I hadn't realised the kernel kept a separate cache of aliases
> that wasn't updated.  Assuming that's still the case, that would
> complicate matters a bit.

Indeed.

> > "[PATCH/RFC 0/3] of/overlay: Update aliases when added or removed"[1]
> > was never applied, due to me never getting to all of the requested changes.
> >
> > [1] https://lore.kernel.org/all/1435675876-2159-1-git-send-email-geert+renesas@glider.be/

FTR, if anyone is interested in this, IIRC I have an updated version
somewhere that did implement some of the requested changes. Just ask.

Thanks!


Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds