diff --git a/drivers/parisc/lasi.c b/drivers/parisc/lasi.c
index a8c2039..2b3ba1d 100644
--- a/drivers/parisc/lasi.c
+++ b/drivers/parisc/lasi.c
@@ -150,7 +150,7 @@
  * 
  */
 
-static unsigned long lasi_power_off_hpa;
+static unsigned long lasi_power_off_hpa __read_mostly;
 
 static void lasi_power_off(void)
 {