From: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Date: Wed, 9 Jan 2019 05:08:37 -0800
Subject: [PATCH] scsi: megaraid_sas: Retry reads of outbound_intr_status reg
References: bsc#1136271
Git-commit: c65bfc8163696dd171e081488b0321beb630b708
Patch-mainline: v5.0-rc3

commit 272652fcbf1a ("scsi: megaraid_sas: add retry logic in megasas_readl")
missed changing readl to megasas_readl in megasas_clear_intr_fusion().  For
Aero controllers, reads of outbound_intr_status register needs to be
retried.

Reported-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
---
 drivers/scsi/megaraid/megaraid_sas_fusion.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index 91e673212582..3cecee38b192 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -175,7 +175,8 @@ megasas_clear_intr_fusion(struct megasas_instance *instance)
 	/*
 	 * Check if it is our interrupt
 	 */
-	status = readl(&regs->outbound_intr_status);
+	status = megasas_readl(instance,
+			       &regs->outbound_intr_status);
 
 	if (status & 1) {
 		writel(status, &regs->outbound_intr_status);
-- 
2.16.4