diff --git a/[refs] b/[refs]
index 5f63b7bc20b4..f6721d16d444 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5a780fc096397f9b62bc6dddced509f012a97e78
+refs/heads/master: e89d67cfbcc1ee32339da9e816489f69742c3a6e
diff --git a/trunk/drivers/char/mxser.c b/trunk/drivers/char/mxser.c
index 463df27494bd..dd9d75351cd6 100644
--- a/trunk/drivers/char/mxser.c
+++ b/trunk/drivers/char/mxser.c
@@ -303,6 +303,7 @@ static void mxser_enable_must_enchance_mode(unsigned long baseio)
 	outb(oldlcr, baseio + UART_LCR);
 }
 
+#ifdef	CONFIG_PCI
 static void mxser_disable_must_enchance_mode(unsigned long baseio)
 {
 	u8 oldlcr;
@@ -317,6 +318,7 @@ static void mxser_disable_must_enchance_mode(unsigned long baseio)
 	outb(efr, baseio + MOXA_MUST_EFR_REGISTER);
 	outb(oldlcr, baseio + UART_LCR);
 }
+#endif
 
 static void mxser_set_must_xon1_value(unsigned long baseio, u8 value)
 {
@@ -388,6 +390,7 @@ static void mxser_set_must_enum_value(unsigned long baseio, u8 value)
 	outb(oldlcr, baseio + UART_LCR);
 }
 
+#ifdef CONFIG_PCI
 static void mxser_get_must_hardware_id(unsigned long baseio, u8 *pId)
 {
 	u8 oldlcr;
@@ -404,6 +407,7 @@ static void mxser_get_must_hardware_id(unsigned long baseio, u8 *pId)
 	*pId = inb(baseio + MOXA_MUST_HWID_REGISTER);
 	outb(oldlcr, baseio + UART_LCR);
 }
+#endif
 
 static void SET_MOXA_MUST_NO_SOFTWARE_FLOW_CONTROL(unsigned long baseio)
 {