From: Qais Yousef <qais.yousef@xxxxxxx> Date: Wed, 30 Oct 2019 15:38:30 +0000 > The core device API performs extra housekeeping bits that are missing > from directly calling cpu_up/down. > > See commit a6717c01ddc2 ("powerpc/rtas: use device model APIs and > serialization during LPM") for an example description of what might go > wrong. > > This also prepares to make cpu_up/down a private interface for anything > but the cpu subsystem. > > Signed-off-by: Qais Yousef <qais.yousef@xxxxxxx> Acked-by: David S. Miller <davem@xxxxxxxxxxxxx>