linux-kernel - Re: [PATCH 4.19 00/18] 4.19.234-rc1 review

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Message-ID: <Yijw3wz29xNiIhWl@kroah.com>
Date:   Wed, 9 Mar 2022 19:24:31 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Sudip Mukherjee <sudipm.mukherjee@...il.com>
Cc:     linux-kernel <linux-kernel@...r.kernel.org>,
        Stable <stable@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Shuah Khan <shuah@...nel.org>, patches@...nelci.org,
        lkft-triage@...ts.linaro.org, Pavel Machek <pavel@...x.de>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Florian Fainelli <f.fainelli@...il.com>, slade@...dewatkins.com
Subject: Re: [PATCH 4.19 00/18] 4.19.234-rc1 review

On Wed, Mar 09, 2022 at 06:08:19PM +0000, Sudip Mukherjee wrote:
> Hi Greg,
> 
> On Wed, Mar 9, 2022 at 4:03 PM Greg Kroah-Hartman
> <gregkh@...uxfoundation.org> wrote:
> >
> > This is the start of the stable review cycle for the 4.19.234 release.
> > There are 18 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 Fri, 11 Mar 2022 15:58:48 +0000.
> > Anything received after that time might be too late.
> 
> My tests are still running, but just an initial result for you,
> 
> x86_64 defconfig fails with:
> arch/x86/kernel/cpu/bugs.c: In function 'spectre_v2_select_mitigation':
> arch/x86/kernel/cpu/bugs.c:973:41: error: implicit declaration of
> function 'unprivileged_ebpf_enabled'
> [-Werror=implicit-function-declaration]
>   973 |         if (mode == SPECTRE_V2_EIBRS && unprivileged_ebpf_enabled())

It's in a .h file, how can it be undefined?  Must be a include path
somewhere, let me dig...