Re: [REGRESSION] stable-rc/linux-6.12.y: (build)kernel/sched/ext.c:3838:13: error: ‘scx_init_task_enabled’ undeclar...

Re: [REGRESSION] stable-rc/linux-6.12.y: (build)kernel/sched/ext.c:3838:13: error: ‘scx_init_task_enabled’ undeclar...

[Greg KH]

On Thu, Sep 17, 2026 at 01:59:07PM -0000, KernelCI bot wrote:
> New build issue found on stable-rc/linux-6.12.y:
> 
> ---
> kernel/sched/ext.c:3838:13: error: ‘scx_init_task_enabled’ undeclared (first use in this function); did you mean ‘scx_ops_init_task_enabled’? in kernel/sched/build_policy.o (kernel/sched/build_policy.c) [logspec:kbuild,kbuild.compiler.error]
> ---
> 
> Log excerpt:
> =====================================================
> In file included from kernel/sched/build_policy.c:63:
> kernel/sched/ext.c: In function ‘scx_cancel_fork’:
> kernel/sched/ext.c:3838:13: error: ‘scx_init_task_enabled’ undeclared (first use in this function); did you mean ‘scx_ops_init_task_enabled’?
>  3838 |         if (scx_init_task_enabled) {
>       |             ^~~~~~~~~~~~~~~~~~~~~
>       |             scx_ops_init_task_enabled
> kernel/sched/ext.c:3838:13: note: each undeclared identifier is reported only once for each function it appears in
>   CC      io_uring/poll.o
> 
> =====================================================
> 
> When fixing this issue, please attribute this report according to the
> patch submission rules:
> 
> Reported-by: kernelci.org bot <bot@kernelci.org>
> 
> For complete logs and details about the environment used, see the issue
> on the KernelCI dashboard:
> 
> - dashboard: https://d.kernelci.org/i/maestro:bea4dd538099462d8c92badd44596b9958bf40cc
> - giturl: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
> - commit HEAD:  09da4c7d441294e4264cc4804d8bc76433d5e0c1
> 
> # Builds where the incident occurred:
> 
> ## defconfig+netdev+nfs-root-boot+kselftest on (arm64):
> - compiler: gcc-14
> - config: https://files.kernelci.org/kbuild-gcc-14-arm64-nfsboot-6aabeb25fc1857a999df12dc/.config
> - dashboard: https://d.kernelci.org/build/maestro:6aabeb25fc1857a999df12dc
> 
> #kernelci issue maestro:bea4dd538099462d8c92badd44596b9958bf40cc
> 
> --
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> 

Now fixed, thanks.

greg k-h