diff --git a/drivers/base/core.c b/drivers/base/core.c
index 82aefb4e6aed..0795cd3b6215 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -2101,7 +2101,6 @@ void device_initialize(struct device *dev)
 	device_pm_init(dev);
 	set_dev_node(dev, -1);
 #ifdef CONFIG_GENERIC_MSI_IRQ
-	raw_spin_lock_init(&dev->msi_lock);
 	INIT_LIST_HEAD(&dev->msi_list);
 #endif
 	INIT_LIST_HEAD(&dev->links.consumers);
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index bc80b0f0ea1b..5630a6d517c2 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -170,25 +170,24 @@ static inline __attribute_const__ u32 msi_mask(unsigned x)
  * reliably as devices without an INTx disable bit will then generate a
  * level IRQ which will never be cleared.
  */
-void __pci_msi_desc_mask_irq(struct msi_desc *desc, u32 mask, u32 flag)
+u32 __pci_msi_desc_mask_irq(struct msi_desc *desc, u32 mask, u32 flag)
 {
-	raw_spinlock_t *lock = &desc->dev->msi_lock;
-	unsigned long flags;
+	u32 mask_bits = desc->masked;
 
 	if (pci_msi_ignore_mask || !desc->msi_attrib.maskbit)
-		return;
+		return 0;
 
-	raw_spin_lock_irqsave(lock, flags);
-	desc->masked &= ~mask;
-	desc->masked |= flag;
+	mask_bits &= ~mask;
+	mask_bits |= flag;
 	pci_write_config_dword(msi_desc_to_pci_dev(desc), desc->mask_pos,
-			       desc->masked);
-	raw_spin_unlock_irqrestore(lock, flags);
+			       mask_bits);
+
+	return mask_bits;
 }
 
 static void msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag)
 {
-	__pci_msi_desc_mask_irq(desc, mask, flag);
+	desc->masked = __pci_msi_desc_mask_irq(desc, mask, flag);
 }
 
 static void __iomem *pci_msix_desc_addr(struct msi_desc *desc)
diff --git a/include/linux/device.h b/include/linux/device.h
index 845ba80f9778..6b0e3448e115 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -1058,7 +1058,6 @@ struct device {
 	struct dev_pin_info	*pins;
 #endif
 #ifdef CONFIG_GENERIC_MSI_IRQ
-	raw_spinlock_t		msi_lock;
 	struct list_head	msi_list;
 #endif
 
diff --git a/include/linux/msi.h b/include/linux/msi.h
index 62982e6afddf..5dd171849a27 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -150,7 +150,7 @@ void __pci_read_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
 void __pci_write_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
 
 u32 __pci_msix_desc_mask_irq(struct msi_desc *desc, u32 flag);
-void __pci_msi_desc_mask_irq(struct msi_desc *desc, u32 mask, u32 flag);
+u32 __pci_msi_desc_mask_irq(struct msi_desc *desc, u32 mask, u32 flag);
 void pci_msi_mask_irq(struct irq_data *data);
 void pci_msi_unmask_irq(struct irq_data *data);