Merge tag 'smp-core-2025-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull smp doc fixlet from Thomas Gleixner:
 "An update of the stale smp_call_function_many() documentation to bring
  it back in sync with the actual implementation"

* tag 'smp-core-2025-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  smp: Fix up and expand the smp_call_function_many() kerneldoc