Merge tag 'pm-extra-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more power management updates from Rafael Wysocki:
 "These revert one recent change in the generic power domains
  framework, fix a recently introduced build issue in there and
  constify attribute_group structures in some places.

  Specifics:

   - Revert a recent change in the generic power domains (genpd)
     framework that led to regressions and turned out the be misguided
     (Rafael Wysocki).

   - Fix a recently introduced build issue in the generic power domains
     (genpd) framework (Arnd Bergmann).

   - Constify attribute_group structures in the PM core, the cpufreq
     stats code and in intel_pstate (Arvind Yadav)"

* tag 'pm-extra-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: intel_pstate: constify attribute_group structures
  cpufreq: cpufreq_stats: constify attribute_group structures
  PM / sleep: constify attribute_group structures
  PM / Domains: provide pm_genpd_poweroff_noirq() stub
  Revert "PM / Domains: Handle safely genpd_syscore_switch() call on non-genpd device"

drivers/base/power/domain.c

@@ -1148,8 +1148,8 @@ static void genpd_syscore_switch(struct device *dev, bool suspend)
 {
 	struct generic_pm_domain *genpd;
 
-	genpd = genpd_lookup_dev(dev);
-	if (!genpd)
+	genpd = dev_to_genpd(dev);
+	if (!pm_genpd_present(genpd))
 		return;
 
 	if (suspend) {
@@ -1180,6 +1180,7 @@ EXPORT_SYMBOL_GPL(pm_genpd_syscore_poweron);
 #define pm_genpd_resume_noirq		NULL
 #define pm_genpd_freeze_noirq		NULL
 #define pm_genpd_thaw_noirq		NULL
+#define pm_genpd_poweroff_noirq		NULL
 #define pm_genpd_restore_noirq		NULL
 #define pm_genpd_complete		NULL