diff --git a/arch/x86/include/asm/hpet.h b/arch/x86/include/asm/hpet.h
index 67385d56d4f48e04841f5c743f75a834e3f94216..e3209f5de65d796b643cb4d4fdf044c0ba07eb31 100644
--- a/arch/x86/include/asm/hpet.h
+++ b/arch/x86/include/asm/hpet.h
@@ -81,7 +81,6 @@ struct irq_domain;
 extern void hpet_msi_unmask(struct irq_data *data);
 extern void hpet_msi_mask(struct irq_data *data);
 extern void hpet_msi_write(struct hpet_dev *hdev, struct msi_msg *msg);
-extern void hpet_msi_read(struct hpet_dev *hdev, struct msi_msg *msg);
 extern struct irq_domain *hpet_create_irq_domain(int hpet_id);
 extern int hpet_assign_irq(struct irq_domain *domain,
 			   struct hpet_dev *dev, int dev_num);
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index b2ec52a7773d79823317f759f4650200cb0e9bfb..69cd0829f4327bcc3eebbfd33ebfe620c9741807 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -462,13 +462,6 @@ void hpet_msi_write(struct hpet_dev *hdev, struct msi_msg *msg)
 	hpet_writel(msg->address_lo, HPET_Tn_ROUTE(hdev->num) + 4);
 }
 
-void hpet_msi_read(struct hpet_dev *hdev, struct msi_msg *msg)
-{
-	msg->data = hpet_readl(HPET_Tn_ROUTE(hdev->num));
-	msg->address_lo = hpet_readl(HPET_Tn_ROUTE(hdev->num) + 4);
-	msg->address_hi = 0;
-}
-
 static int hpet_msi_shutdown(struct clock_event_device *evt)
 {
 	struct hpet_dev *hdev = EVT_TO_HPET_DEV(evt);