Kernel failing to build on 32-bit powerpc

[Christophe Leroy]

Hi,

Le 16/10/2025 à 21:03, John Paul Adrian Glaubitz a écrit :
> Hi,
> 
> could someone investigate the following build failure on powerpc [1], please?
> 
> In file included from /build/reproducible-path/linux-6.16.12/kernel/sched/build_policy.c:64:
> /build/reproducible-path/linux-6.16.12/kernel/sched/ext_idle.c: In function ‘is_bpf_migration_disabled’:
> /build/reproducible-path/linux-6.16.12/kernel/sched/ext_idle.c:893:14: error: ‘const struct task_struct’ has no member named ‘migration_disabled’
>    893 |         if (p->migration_disabled == 1)
>        |              ^~
> /build/reproducible-path/linux-6.16.12/kernel/sched/ext_idle.c:896:25: error: ‘const struct task_struct’ has no member named ‘migration_disabled’
>    896 |                 return p->migration_disabled;
>        |                         ^~
> 

I guess 6.16.12 is missing commit cac5cefbade9 ("sched/smp: Make SMP 
unconditional")

Christophe