diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index b59bba3e651621fa5fa1ac3f216eb32dc721d947..59d7844ee0222518d9a7c30a9adf57c9c399e7e2 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -3344,9 +3344,8 @@ _base_mpi_ep_writeq(__u64 b, volatile void __iomem *addr,
 static inline void
 _base_writeq(__u64 b, volatile void __iomem *addr, spinlock_t *writeq_lock)
 {
-	wmb();
 	__raw_writeq(b, addr);
-	barrier();
+	mmiowb();
 }
 #else
 static inline void