stable-rc queue/5.4 x86 and i386 gcc-11 builds failed - bugs.c:973:41: error: implicit declaration of function 'unprivileged_ebpf_enabled'

stable-rc queue/5.4 x86 and i386 gcc-11 builds failed - bugs.c:973:41: error: implicit declaration of function 'unprivileged_ebpf_enabled'

[Naresh Kamboju]

stable-rc queue/5.4 x86 and i386 gcc-11 builds failed due to following
errors / warnings.

metadata:
    git_describe: v5.4.183-21-g73e4e04ab074
    git_repo: https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc-queues
    git_sha: 73e4e04ab074c2edbda9422d6b9bfb2dc5779ce3
    git_short_log: 73e4e04ab074 (\ARM: fix build warning in proc-v7-bugs.c\)
    target_arch: x86_64
    toolchain: gcc-11

make --silent --keep-going --jobs=8
O=/home/tuxbuild/.cache/tuxmake/builds/1/build ARCH=x86_64
CROSS_COMPILE=x86_64-linux-gnu- 'CC=sccache x86_64-linux-gnu-gcc'
'HOSTCC=sccache gcc'
/builds/linux/arch/x86/kernel/cpu/bugs.c: In function
'spectre_v2_select_mitigation':
/builds/linux/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())
      |                                         ^~~~~~~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors


Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>

build link [1] & [2]

--
Linaro LKFT
https://lkft.linaro.org

[1] https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc-queues/-/jobs/2187397024
[2] https://builds.tuxbuild.com/26C6fI6Q6XHWjKODxadjUgYrxAb/

Re: stable-rc queue/5.4 x86 and i386 gcc-11 builds failed - bugs.c:973:41: error: implicit declaration of function 'unprivileged_ebpf_enabled'

[Greg Kroah-Hartman]

On Thu, Mar 10, 2022 at 06:12:15PM +0530, Naresh Kamboju wrote:
> stable-rc queue/5.4 x86 and i386 gcc-11 builds failed due to following
> errors / warnings.
> 
> metadata:
>     git_describe: v5.4.183-21-g73e4e04ab074
>     git_repo: https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc-queues
>     git_sha: 73e4e04ab074c2edbda9422d6b9bfb2dc5779ce3
>     git_short_log: 73e4e04ab074 (\ARM: fix build warning in proc-v7-bugs.c\)
>     target_arch: x86_64
>     toolchain: gcc-11
> 
> make --silent --keep-going --jobs=8
> O=/home/tuxbuild/.cache/tuxmake/builds/1/build ARCH=x86_64
> CROSS_COMPILE=x86_64-linux-gnu- 'CC=sccache x86_64-linux-gnu-gcc'
> 'HOSTCC=sccache gcc'
> /builds/linux/arch/x86/kernel/cpu/bugs.c: In function
> 'spectre_v2_select_mitigation':
> /builds/linux/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())
>       |                                         ^~~~~~~~~~~~~~~~~~~~~~~~~
> cc1: some warnings being treated as errors
> 
> 
> Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
> 
> build link [1] & [2]

Should now be fixed.  I'll be pushing out -rc2 in a bit...

thanks,

greg k-h