Hi Arnd, After merging the y2038 tree, today's linux-next build (s390 allnoconfig) failed like this: In file included from include/linux/elf.h:5:0, from include/linux/module.h:15, from init/main.c:16: arch/s390/include/asm/elf.h:138:1: error: unknown type name 's390_compat_regs' Caused by commit f00689038f71 ("include: Move compat_timespec/ timeval to compat_time.h") -- Cheers, Stephen Rothwell