Re: RFC: Mega rename of device tree routines from of_*() to dt_*()

[Michael Ellerman <michael-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org>]

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On Thu, 2010-11-25 at 18:42 -1000, Mitch Bradley wrote:
> On 11/25/2010 5:15 PM, Michael Ellerman wrote:
> > On Thu, 2010-11-25 at 09:17 -0700, Grant Likely wrote:
> >> On Thu, Nov 25, 2010 at 6:34 AM, Michael Ellerman
> >> <michael-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org>  wrote:
> >>> On Thu, 2010-11-25 at 01:03 +1100, Michael Ellerman wrote:
> >>>> Hi all,
> >>>>
> >>>> There were some murmurings on IRC last week about renaming the of_*()
> >>>> routines.
> >>> ...
> >>>> The thinking is that on many platforms that use the of_() routines
> >>>> OpenFirmware is not involved at all, this is true even on many powerpc
> >>>> platforms. Also for folks who don't know the OpenFirmware connection
> >>>> it reads as "of", as in "a can of worms".
> >>> ...
> >>>> So I'm hoping people with either say "YES this is a great idea", or "NO
> >>>> this is stupid".
> >>>
> >>> I'm still hoping, but so far it seems most people have got better things
> >>> to do, and of those that do have an opinion the balance is slightly
> >>> positive.
> >>
> >> I assume you'll be also publishing the script that you use for
> >> generating the massive patch.  I expect that there will be a few
> >> iterations of running the rename script to convert over all the
> >> stragglers.
> >
> > Yep sure, I'll just make it less crap first.
> >
> >> It should also be negotiated with Linus about when this
> >> patch should get applied.  I do NOT want to cause massive merge pain
> >> during the merge window.
> >
> > Obviously.
> >
> >> Andrew/Linus: Before Michael proceeds too far with this rename, are
> >> you okay with a mass rename of the device tree functions from of_* to
> >> dt_*?  Nobody likes the ambiguous 'of_' prefix ("of?  of what?"), but
> >> to fix it means large cross-tree patches and potential merge
> >> conflicts.
> >
> > It'd also be good to hear from DaveM, sparc is the platform with the
> > strongest link to real OF AFAIK, so the of_() names make more sense
> > there.
> 
> 
> One Laptop Per Child ships real Open Firmware on its x86 Linux systems, 
> of which approximately 2 million have been shipped or ordered.  An ARM 
> version, also with OFW, is in the works.

OK. I don't see any code under arch/x86 or arch/arm that uses of_()
routines though? Or is it under drivers or something?

> That said, I don't particularly like the abbreviation "of" either; I 
> abbreviate Open Firmware as "OFW".
> 
> I don't mind using "dt_" to apply to device tree things; I think it's 
> clearer than "of_".   Ideally, it would be nice to acknowledge the 
> historical connection in some way, but confusing nomenclature probably 
> is not the way to go about it.

Cool. I think there will still be a few things that have OF in the name,
at least for a while, and I'm sure the doco will still mention OF, so I
don't think the connection will be lost.

cheers


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