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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20220330112733.GG163591@kunlun.suse.cz>
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>,
        Petr Mladek <pmladek@...e.com>,
        Alexey Kardashevskiy <aik@...abs.ru>, jniethe5@...il.com,
        psampat@...ux.ibm.com, Miroslav Benes <mbenes@...e.cz>,
        hbh25y@...il.com, mikey@...ling.org,
        Joe Lawrence <joe.lawrence@...hat.com>,
        Anders Roxell <anders.roxell@...aro.org>,
        "Aneesh Kumar K.V" <aneesh.kumar@...ux.ibm.com>,
        Helge Deller <deller@....de>, danielhb413@...il.com,
        haren@...ux.ibm.com, Thierry Reding <treding@...dia.com>,
        ganeshgr@...ux.ibm.com, Corentin Labbe <clabbe@...libre.com>,
        mamatha4@...ux.vnet.ibm.com,
        "Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com>,
        kernel.noureddine@...il.com, nathanl@...ux.ibm.com,
        Paul Menzel <pmenzel@...gen.mpg.de>,
        YueHaibing <yuehaibing@...wei.com>,
        Kees Cook <keescook@...omium.org>,
        Arnd Bergmann <arnd@...db.de>, guozhengkui@...o.com,
        kjain@...ux.ibm.com, chenjingwen6@...wei.com,
        Nick Piggin <npiggin@...il.com>, oss@...error.net,
        rmclure@...ux.ibm.com, maddy@...ux.ibm.com,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Jakob Koschel <jakobkoschel@...il.com>, sachinp@...ux.ibm.com,
        bigunclemax@...il.com, ldufour@...ux.ibm.com,
        hbathini@...ux.ibm.com,
        Athira Jajeev <atrajeev@...ux.vnet.ibm.com>,
        farosas@...ux.ibm.com, Geoff Levand <geoff@...radead.org>,
        Randy Dunlap <rdunlap@...radead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        sourabhjain@...ux.ibm.com, Julia Lawall <Julia.Lawall@...ia.fr>,
        Ritesh Harjani <riteshh@...ux.ibm.com>, cgel.zte@...il.com,
        Vaibhav Jain <vaibhav@...ux.ibm.com>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        tobias@...dekranz.com
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