1 files changed, 6 insertions, 4 deletions

diff --git a/drivers/tty/serial/mfd.c b/drivers/tty/serial/mfd.c
index 503dcc77b2bd..52c930fac210 100644
--- a/drivers/tty/serial/mfd.c
+++ b/drivers/tty/serial/mfd.c
@@ -293,7 +293,7 @@ static void serial_hsu_enable_ms(struct uart_port *port)
         serial_out(up, UART_IER, up->ier);
 }
 
-void hsu_dma_tx(struct uart_hsu_port *up)
+static void hsu_dma_tx(struct uart_hsu_port *up)
 {
         struct circ_buf *xmit = &up->port.state->xmit;
         struct hsu_dma_buffer *dbuf = &up->txbuf;
@@ -340,7 +340,8 @@ void hsu_dma_tx(struct uart_hsu_port *up)
 }
 
 /* The buffer is already cache coherent */
-void hsu_dma_start_rx_chan(struct hsu_dma_chan *rxc, struct hsu_dma_buffer *dbuf)
+static void hsu_dma_start_rx_chan(struct hsu_dma_chan *rxc,
+                                        struct hsu_dma_buffer *dbuf)
 {
         dbuf->ofs = 0;
 
@@ -386,7 +387,8 @@ static void serial_hsu_stop_tx(struct uart_port *port)
 
 /* This is always called in spinlock protected mode, so
  * modify timeout timer is safe here */
-void hsu_dma_rx(struct uart_hsu_port *up, u32 int_sts, unsigned long *flags)
+static void hsu_dma_rx(struct uart_hsu_port *up, u32 int_sts,
+                        unsigned long *flags)
 {
         struct hsu_dma_buffer *dbuf = &up->rxbuf;
         struct hsu_dma_chan *chan = up->rxc;
@@ -1183,7 +1185,7 @@ static struct console serial_hsu_console = {
 #define SERIAL_HSU_CONSOLE      NULL
 #endif
 
-struct uart_ops serial_hsu_pops = {
+static struct uart_ops serial_hsu_pops = {
         .tx_empty       = serial_hsu_tx_empty,
         .set_mctrl      = serial_hsu_set_mctrl,
         .get_mctrl      = serial_hsu_get_mctrl,