acpi_pad: uses MONITOR/MWAIT, so it doesn't need to clear TS_POLLING

api_pad exclusively uses MONITOR/MWAIT to sleep in idle,
so it does not need the wakeup IPI during idle sleep
that is provoked by clearing TS_POLLING.

Signed-off-by: Len Brown <[e-mail]>
Cc: Shaohua Li <[e-mail]>

drivers/acpi/acpi_pad.c

···
 
 		do_sleep = 0;
 
-		current_thread_info()->status &= ~TS_POLLING;
-		/*
-		 * TS_POLLING-cleared state must be visible before we test
-		 * NEED_RESCHED:
-		 */
-		smp_mb();
-
 		expire_time = jiffies + HZ * (100 - idle_pct) / 100;
 
 		while (!need_resched()) {
···
 				break;
 			}
 		}
-
-		current_thread_info()->status |= TS_POLLING;
 
 		/*
 		 * current sched_rt has threshold for rt task running time.