Merge tag 's390-7.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Merge tag 's390-7.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull more s390 updates from Alexander Gordeev:

 - consolidate s390 idle time accounting by moving all CPU time tracking
   to the architecture backend and eliminate the mix of architecture-
   specific and common code accounting

 - Add missing EXPORT_SYMBOL_GPL() to kcpustat_field_idle() and
   kcpustat_field_iowait() functions

 - Finalize ptep_get() conversion by replacing direct page table entry
   dereferencing with proper accessors (ptep_get(), pmdp_get(), etc.)

 - Explicitly check the buffer length in PKEY_VERIFYPROTK ioctl and
   pkey_pckmo implementations and fail if the length is exceeded

* tag 's390-7.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/pkey: Check length in pkey_pckmo handler implementation
  s390/pkey: Check length in PKEY_VERIFYPROTK ioctl
  s390/idle: Add missing EXPORT_SYMBOL_GPL()
  s390/mm: Complete ptep_get() conversion
  s390/idle: Remove idle time and count sysfs files
  s390/idle: Provide arch specific kcpustat_field_idle()/kcpustat_field_iowait()
  s390/irq/idle: Use stcke instead of stckf for time stamps
  s390/timex: Move union tod_clock type to separate header