[PATCH] powerpc/pseries: Do not initiate shutdown when system is running on UPS

[Vasant Hegde <hegdevasant@linux.vnet.ibm.com>]

As per PAPR specification whenever system is running on UPS we have to
wait for predefined time (default 10mins) before initiating shutdown.

We have user space tool (rtas_errd) to monitor for EPOW events and
initiate shutdown after predefined time. Hence do not initiate shutdown
whenever we get EPOW_SHUTDOWN_ON_UPS event.

Fixes: 79872e35 (powerpc/pseries: All events of EPOW_SYSTEM_SHUTDOWN must initiate shutdown)
Cc: stable@vger.kernel.org # v4.0+
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
---
 arch/powerpc/platforms/pseries/ras.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c
index f3736fcd98fc..13c86a292c6d 100644
--- a/arch/powerpc/platforms/pseries/ras.c
+++ b/arch/powerpc/platforms/pseries/ras.c
@@ -184,7 +184,6 @@ static void handle_system_shutdown(char event_modifier)
 	case EPOW_SHUTDOWN_ON_UPS:
 		pr_emerg("Loss of system power detected. System is running on"
 			 " UPS/battery. Check RTAS error log for details\n");
-		orderly_poweroff(true);
 		break;
 
 	case EPOW_SHUTDOWN_LOSS_OF_CRITICAL_FUNCTIONS:
-- 
2.26.2