From: Kamenee Arumugam <kamenee.arumugam@intel.com>
Date: Tue, 26 Sep 2017 06:06:15 -0700
Subject: IB/hfi1: Return correct value in general interrupt handler
Patch-mainline: v4.14-rc3
Git-commit: 09592af5fdd722615ebe435fb34308de26c74bcf
References: bsc#1060463 FATE#323043

The general interrupt handler returns IRQ_HANDLED whether an IRQ
was handled or not.
Determine if an IRQ was handled and return the correct value.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Kamenee Arumugam <kamenee.arumugam@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/hw/hfi1/chip.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/infiniband/hw/hfi1/chip.c
+++ b/drivers/infiniband/hw/hfi1/chip.c
@@ -8240,6 +8240,7 @@ static irqreturn_t general_interrupt(int
 	u64 regs[CCE_NUM_INT_CSRS];
 	u32 bit;
 	int i;
+	irqreturn_t handled = IRQ_NONE;
 
 	this_cpu_inc(*dd->int_counter);
 
@@ -8260,9 +8261,10 @@ static irqreturn_t general_interrupt(int
 	for_each_set_bit(bit, (unsigned long *)&regs[0],
 			 CCE_NUM_INT_CSRS * 64) {
 		is_interrupt(dd, bit);
+		handled = IRQ_HANDLED;
 	}
 
-	return IRQ_HANDLED;
+	return handled;
 }
 
 static irqreturn_t sdma_interrupt(int irq, void *data)