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Date: Wed, 21 Feb 2024 13:37:30 +0100
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Cc: Daniel =?iso-8859-1?Q?D=EDaz?= <daniel.diaz@linaro.org>,
	stable@vger.kernel.org, patches@lists.linux.dev,
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	sudipm.mukherjee@gmail.com, srw@sladewatkins.net, rwarsow@gmx.de,
	conor@kernel.org, allen.lkml@gmail.com,
	Christophe Leroy <christophe.leroy@csgroup.eu>,
	Michael Ellerman <mpe@ellerman.id.au>
Subject: Re: [PATCH 6.1 000/197] 6.1.79-rc1 review
Message-ID: <2024022122-diminish-astrology-3635@gregkh>
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On Wed, Feb 21, 2024 at 09:16:32AM +0100, Matthias Schiffer wrote:
> On Tue, 2024-02-20 at 19:40 -0600, Daniel D?az wrote:
> > ********************
> > Achtung externe E-Mail: ?ffnen Sie Anh?nge und Links nur, wenn Sie wissen, dass diese aus einer sicheren Quelle stammen und sicher sind. Leiten Sie die E-Mail im Zweifelsfall zur Pr?fung an den IT-Helpdesk weiter.
> > Attention external email: Open attachments and links only if you know that they are from a secure source and are safe. In doubt forward the email to the IT-Helpdesk to check it.
> > ********************
> > 
> > Hello!
> > 
> > On 20/02/24 7:04 p.?m., Daniel D?az wrote:
> > > On 20/02/24 2:49 p.?m., Greg Kroah-Hartman wrote:
> > > > This is the start of the stable review cycle for the 6.1.79 release.
> > > > There are 197 patches in this series, all will be posted as a response
> > > > to this one.? If anyone has any issues with these being applied, please
> > > > let me know.
> > > > 
> > > > Responses should be made by Thu, 22 Feb 2024 20:48:08 +0000.
> > > > Anything received after that time might be too late.
> > > > 
> > > > The whole patch series can be found in one patch at:
> > > > ????https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.1.79-rc1.gz
> > > > or in the git tree and branch at:
> > > > ????git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.1.y
> > > > and the diffstat can be found below.
> > > > 
> > > > thanks,
> > > > 
> > > > greg k-h
> > > 
> > > We see a regression with PowerPC:
> > > 
> > > -----8<-----
> > >  ? /builds/linux/arch/powerpc/kernel/cpu_setup_6xx.S: Assembler messages:
> > >  ? /builds/linux/arch/powerpc/kernel/cpu_setup_6xx.S:124: Error: unrecognized opcode: `sym_func_start_local(setup_g2_le_hid2)'
> > >  ? /builds/linux/arch/powerpc/kernel/cpu_setup_6xx.S:131: Error: unrecognized opcode: `sym_func_end(setup_g2_le_hid2)'
> > >  ? make[4]: *** [/builds/linux/scripts/Makefile.build:382: arch/powerpc/kernel/cpu_setup_6xx.o] Error 1
> > > ----->8-----
> > > 
> > > This is seen only on PowerPC with GCC 8, GCC 13, Clang 17, Clang nightly, on:
> > > * allnoconfig
> > > * tinyconfig
> > > * mpc83xx_defconfig
> > > * ppc6xx_defconfig
> > > (at least)
> > > 
> > > Reproducer:
> > > 
> > >  ? tuxmake \
> > >  ??? --runtime podman \
> > >  ??? --target-arch powerpc \
> > >  ??? --toolchain gcc-8 \
> > >  ??? --kconfig tinyconfig
> > > 
> > 
> > Bisection points to:
> > 
> >    commit a65d7a833f486d0c162fdc854d2d5dd2e66ddd95
> >    Author: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
> >    Date:   Wed Jan 24 11:38:38 2024 +0100
> > 
> >        powerpc/6xx: set High BAT Enable flag on G2_LE cores
> >        
> >        [ Upstream commit a038a3ff8c6582404834852c043dadc73a5b68b4 ]
> > 
> > 
> > Reverting that commit makes the build pass again.
> 
> It seems that backporting the mentioned commit verbatim would also require
> 2da37761671b5bdedbe04e6469cfa57cd6b6ae45 ("powerpc/32: Fix objtool unannotated intra-function call
> warnings") to make SYM_FUNC_START_LOCAL/SYM_FUNC_END available. Please drop this patch from 6.1 and
> older for now.

Now dropped, thanks!

greg k-h