diff --git a/[refs] b/[refs]
index 6259197fd1f3..bd62019eb12f 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 0ce3a7e5bd305e96c924fab1e3126480c665f017
+refs/heads/master: 27898988174bb211fd962ea73b9c6dc09f888705
diff --git a/trunk/drivers/message/fusion/mptbase.c b/trunk/drivers/message/fusion/mptbase.c
index db3c892f87fb..d40d6d15ae20 100644
--- a/trunk/drivers/message/fusion/mptbase.c
+++ b/trunk/drivers/message/fusion/mptbase.c
@@ -1686,9 +1686,14 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
 		ioc->bus_type = SAS;
 	}
 
-	if (ioc->bus_type == SAS && mpt_msi_enable == -1)
-		ioc->msi_enable = 1;
-	else
+	if (mpt_msi_enable == -1) {
+		/* Enable on SAS, disable on FC and SPI */
+		if (ioc->bus_type == SAS)
+			ioc->msi_enable = 1;
+		else
+			ioc->msi_enable = 0;
+	} else
+		/* follow flag: 0 - disable; 1 - enable */
 		ioc->msi_enable = mpt_msi_enable;
 
 	if (ioc->errata_flag_1064)