Building s390:defconfig ... failed
--------------
Error log:
arch/s390/kernel/smp.c: In function 'smp_call_ipl_cpu':
arch/s390/kernel/smp.c:363:23: warning: initialization from incompatible pointer type [-Wincompatible-pointer-types]
struct lowcore *lc = pcpu_devices->lowcore;
^~~~~~~~~~~~
arch/s390/kernel/smp.c:366:6: warning: assignment from incompatible pointer type [-Wincompatible-pointer-types]
lc = &S390_lowcore;
^
arch/s390/kernel/smp.c:369:11: error: dereferencing pointer to incomplete type 'struct lowcore'
