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Date:   Tue, 21 Jun 2022 12:35:23 +0200
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     "Jason A. Donenfeld" <Jason@zx2c4.com>
Cc:     Naresh Kamboju <naresh.kamboju@linaro.org>,
        clang-built-linux <clang-built-linux@googlegroups.com>,
        torvalds@linux-foundation.org, linux-kernel@vger.kernel.org,
        stable@vger.kernel.org, akpm@linux-foundation.org,
        linux@roeck-us.net, shuah@kernel.org, patches@kernelci.org,
        lkft-triage@lists.linaro.org, pavel@denx.de, jonathanh@nvidia.com,
        f.fainelli@gmail.com, sudipm.mukherjee@gmail.com,
        slade@sladewatkins.com
Subject: Re: [PATCH 5.15 000/106] 5.15.49-rc1 review
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On Tue, Jun 21, 2022 at 11:45:51AM +0200, Jason A. Donenfeld wrote:
> On Tue, Jun 21, 2022 at 10:55:33AM +0200, Greg Kroah-Hartman wrote:
> > On Tue, Jun 21, 2022 at 02:06:06PM +0530, Naresh Kamboju wrote:
> > > On Mon, 20 Jun 2022 at 18:36, Greg Kroah-Hartman
> > > <gregkh@linuxfoundation.org> wrote:
> > > >
> > > > This is the start of the stable review cycle for the 5.15.49 release.
> > > > There are 106 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 Wed, 22 Jun 2022 12:47:02 +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/v5.x/stable-review/patch-5.15.49-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-5.15.y
> > > > and the diffstat can be found below.
> > > >
> > > > thanks,
> > > >
> > > > greg k-h
> > > 
> > > Following commit causing regression while building allmodconfig for clang-13
> > > on arm64, riscv and x86_64.
> > > 
> > > > Linus Torvalds <torvalds@linux-foundation.org>
> > > >     netfs: gcc-12: temporarily disable '-Wattribute-warning' for now
> > > 
> > > fs/afs/inode.c:29:32: error: unknown warning group
> > > '-Wattribute-warning', ignored [-Werror,-Wunknown-warning-option]
> > > #pragma GCC diagnostic ignored "-Wattribute-warning"
> > >                                ^
> > > 1 error generated.
> > > 
> > > Regressions:
> > >   - arm64/build/clang-13-allmodconfig - Failed
> > >   - riscv/build/clang-13-allmodconfig - Failed
> > >   - x86_64/build/clang-13-allmodconfig - Failed
> > 
> > Does Linus's tree also show this issue?
> 
> Linus' tree got rid of the pragma with:
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/afs/inode.c?id=874c8ca1e60b2c564a48f7e7acc40d328d5c8733

That isn't going to work on 5.15.y at all without a lot of hand tweaking :(

> and then a subsequent cleanup:
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/afs/inode.c?id=e81fb4198e27925b151aad1450e0fd607d6733f

That doesn't work on 5.18 either.

I guess I'll go revert the 5.15 patch here for now and let others sort
it all out when they want to build 5.15 with gcc-12.

thanks,

greg k-h