On Fri, Oct 17, 2025 at 08:49:06AM +0200, Christophe Leroy wrote:

Hi,

Le 16/10/2025 à 21:03, John Paul Adrian Glaubitz a écrit :

quoted

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")

6.16 is now end-of-life, so not much we can do there, sorry.

greg k-h