linux-kernel - Re: [GIT PULL] Please pull powerpc/linux.git powerpc-5.18-1 tag

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Date:   Wed, 30 Mar 2022 13:27:33 +0200
From:   Michal Suchánek <msuchanek@...e.de>
To:     Michael Ellerman <mpe@...erman.id.au>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        wangborong@...rlc.com, Bhaskar Chowdhury <unixbhaskar@...il.com>,
        Wedson Almeida Filho <wedsonaf@...gle.com>,
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Subject: Re: [GIT PULL] Please pull powerpc/linux.git powerpc-5.18-1 tag

On Mon, Mar 28, 2022 at 08:07:13PM +1100, Michael Ellerman wrote:
> Linus Torvalds <torvalds@...ux-foundation.org> writes:
> > On Fri, Mar 25, 2022 at 3:25 AM Michael Ellerman <mpe@...erman.id.au> wrote:

> 
> > That said:
> >
> >> There's a series of commits cleaning up function descriptor handling,
> >
> > For some reason I also thought that powerpc had actually moved away
> > from function descriptors, so I'm clearly not keeping up with the
> > times.
> 
> No you're right, we have moved away from them, but not entirely.
> 
> Functions descriptors are still used for 64-bit big endian, but they're
> not used for 64-bit little endian, or 32-bit.

There was a patch to use ABIv2 for ppc64 big endian. I suppose that
would rid usof the gunction descriptors for good.

Somehow the discussion of that change tralied off without any results.

Maybe it's worth resurrecting?

Thanks

Michal