| /build/build/tmp/work-shared/intel-corei7-64/kernel-source/kernel/irq/manage.c: In function 'irq_set_affinity_notifier':
| /build/build/tmp/work-shared/intel-corei7-64/kernel-source/kernel/irq/manage.c:399:33: error: 'struct irq_affinity_notify' has no member named 'work'; did you mean 'swork'?
|    cancel_work_sync(&old_notify->work);
|                                  ^~~~
|                                  swork
|   CC      kernel/locking/rwsem.o
| /build/build/tmp/work-shared/intel-corei7-64/kernel-source/scripts/Makefile.build:303: recipe for target 'kernel/irq/manage.o' failed
| make[4]: *** [kernel/irq/manage.o] Error 1
| make[4]: *** Waiting for unfinished jobs....
|   CC      kernel/locking/spinlock.o

It looks like this has been fixed by Bruce during the recent upgrade:

http://git.yoctoproject.org/cgit.cgi/linux-yocto/commit/?h=v4.19/standard/preempt-rt/base&id=136a0e73cbefff9477133aae735aaf606ffae665

We should backport the 4.19.57 kernel upgrade to warrior to include this merge fix.