1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/acpi/atomicio.c b/drivers/acpi/atomicio.c
index 542e53903891..7489b89c300f 100644
--- a/drivers/acpi/atomicio.c
+++ b/drivers/acpi/atomicio.c
@@ -280,9 +280,11 @@ static int acpi_atomic_read_mem(u64 paddr, u64 *val, u32 width)
         case 32:
                 *val = readl(addr);
                 break;
+#ifdef readq
         case 64:
                 *val = readq(addr);
                 break;
+#endif
         default:
                 return -EINVAL;
         }
@@ -307,9 +309,11 @@ static int acpi_atomic_write_mem(u64 paddr, u64 val, u32 width)
         case 32:
                 writel(val, addr);
                 break;
+#ifdef writeq
         case 64:
                 writeq(val, addr);
                 break;
+#endif
         default:
                 return -EINVAL;
         }