PM / Sleep: Drop suspend_stats_update()

Since suspend_stats_update() is only called from pm_suspend(),
move its code directly into that function and remove the static
inline definition from include/linux/suspend.h.  Clean_up
pm_suspend() in the process.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>

include/linux/suspend.h

@@ -94,22 +94,6 @@ static inline void dpm_save_failed_step(enum suspend_stat_step step)
 	suspend_stats.last_failed_step %= REC_FAILED_NUM;
 }
 
-/**
- * suspend_stats_update - Update success/failure statistics of suspend-to-ram
- *
- * @error: Value returned by enter_state() function
- */
-static inline void suspend_stats_update(int error)
-{
-	if (error) {
-		suspend_stats.fail++;
-		dpm_save_failed_errno(error);
-	} else {
-		suspend_stats.success++;
-	}
-}
-
-
 /**
  * struct platform_suspend_ops - Callbacks for managing platform dependent
  *	system sleep states.

kernel/power/suspend.c

@@ -316,12 +316,18 @@ static int enter_state(suspend_state_t state)
  */
 int pm_suspend(suspend_state_t state)
 {
-	int ret;
-	if (state > PM_SUSPEND_ON && state < PM_SUSPEND_MAX) {
-		ret = enter_state(state);
-		suspend_stats_update(ret);
-		return ret;
+	int error;
+
+	if (state <= PM_SUSPEND_ON || state >= PM_SUSPEND_MAX)
+		return -EINVAL;
+
+	error = enter_state(state);
+	if (error) {
+		suspend_stats.fail++;
+		dpm_save_failed_errno(error);
+	} else {
+		suspend_stats.success++;
 	}
-	return -EINVAL;
+	return error;
 }
 EXPORT_SYMBOL(pm_suspend);