spapr: Clean up rtas_start_cpu() & rtas_stop_self()

This makes several minor cleanups to these functions:
  * Follow usual convention of an early exit on error, rather than having
    most of the body in an if
  * Clearer naming of cpu and cpu_.  Now callcpu is the cpu from which the
    RTAS call is invoked, newcpu is the cpu which we're starting
  * Use cpu_synchronize_state() instead of kvm_cpu_synchronize_state()
    directly
  * Remove pointless comment describing what cpu_synchronize_state() does
  * Use ppc_store_lpcr() instead of directly writing the register field

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Tested-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>

0 files changed, 0 insertions, 0 deletions