linux-kernel - Re: [PATCH 00/18] sync opal.h with firmware

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Message-ID: <m3iofanyh4.fsf@oc8180480414.ibm.com>
Date:	Tue, 10 Feb 2015 16:10:15 +1100
From:	Stewart Smith <stewart@...ux.vnet.ibm.com>
To:	Michael Ellerman <mpe@...erman.id.au>
Cc:	benh@...nel.crashing.org, linuxppc-dev@...ts.ozlabs.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 00/18] sync opal.h with firmware

Michael Ellerman <mpe@...erman.id.au> writes:
> I'm going to be a total pain, and suggest that this is the wrong approach :)
>
> I was on board until patch 15, where you have to add an #ifdef SKIBOOT to guard
> an include, and you have to remove an include on the Linux side.

(the Linux include was actually not used it seems)

> I think the better solution would be to pull all the common parts out into a
> new file, opal-api.h. That file would define the API between Linux & Skiboot,
> and absolutely nothing else.

Sounds fine.

> Both Linux and Skiboot would continue to have an opal.h, which would include
> opal-api.h, and then anything else needed on either side to make a functioning
> opal.h - eg. other includes & definitions (SG_ENTRIES_PER_NODE).
>
> It would also have the advantage that because opal-api.h is a new file, we can
> get it synced from the beginning and not worry about all the whitespace &
> rearranging patches. ie. there'd just be one patch on both sides to add the new
> file and move definitions into it from opal.h.

Sure. I was doing it bit by bit just so that it was reviewable that I
didn't miss anything or violently screw anything up. Plus, there were
things that should be changed in skiboot as well.

> If you don't violently disagree I'll do a patch for that and we can see how it
> looks?

Not violently :)

I'd go back and do a similar thing to skiboot to make them match again
though, having linux/opal-api.h match skiboot/opal.h would just cause
swearing fits :)

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