tree d1c6cc37aeb4ec570da99fd463702bc8fe853984
parent ad611045ce5d059af84a9855b22ca3f7a99d47be
author Johannes Berg <johannes@sipsolutions.net> 1222296985 +0000
committer Benjamin Herrenschmidt <benh@kernel.crashing.org> 1222745106 +1000

powerpc: Fix failure to shutdown with CPU hotplug

I tracked down the shutdown regression to CPUs not dying
when being shut down during power-off. This turns out to
be due to the system_state being SYSTEM_POWER_OFF, which
this code doesn't take as a valid state for shutting off
CPUs in.

This has never made sense to me, but when I added hotplug
code to implement hibernate I only "made it work" and did
not question the need to check the system_state. Thomas
Gleixner helped me dig, but the only thing we found is
that it was added with the original commit that added CPU
hotplug support.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Joel Schopp <jschopp@austin.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>