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Date:   Thu, 16 Sep 2021 10:41:05 +0200
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     Arnd Bergmann <arnd@arndb.de>
Cc:     Naresh Kamboju <naresh.kamboju@linaro.org>,
        Christoph Hellwig <hch@lst.de>,
        Russell King <rmk+kernel@armlinux.org.uk>,
        Sasha Levin <sashal@kernel.org>,
        linux-stable <stable@vger.kernel.org>
Subject: Re: ARM: 9109/1: oabi-compat: add epoll_pwait handler
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On Thu, Sep 16, 2021 at 08:57:20AM +0200, Arnd Bergmann wrote:
> On Thu, Sep 16, 2021 at 8:40 AM Naresh Kamboju
> <naresh.kamboju@linaro.org> wrote:
> >
> > Following build warnings/ errors noticed while building stable-rc 4.14...5.14
> > branches with gcc-8/9/10/11 for arm architecture with axm55xx_defconfig.
> >
> > # to reproduce this build locally:
> > tuxmake --runtime podman --target-arch arm --toolchain gcc-11
> > --kconfig axm55xx_defconfig
> 
> Thank you for the report!
> 
> This was introduced in my upstream commit b6e47f3c11c1 ("ARM: 9109/1:
> oabi-compat:
> add epoll_pwait handler") and fixed in the immediately following 249dbe74d3c4
> ("ARM: 9108/1: oabi-compat: rework epoll_wait/epoll_pwait emulation").
> 
> Only the first patch got backported to stable-rc, so it's broken
> there. If anyone
> thinks we want to keep the epoll_pwait emulation in stable, I can do a backport,
> but I would just drop that commit from all stable kernels.

Good idea, I'm going to drop it from all stable queues now.

thanks,

greg k-h