1 files changed, 7 insertions, 7 deletions

diff --git a/drivers/spi/spi-at91-usart.c b/drivers/spi/spi-at91-usart.c
index 4712bd470c89..a924657642fa 100644
--- a/drivers/spi/spi-at91-usart.c
+++ b/drivers/spi/spi-at91-usart.c
@@ -215,9 +215,9 @@ static int at91_usart_spi_setup(struct spi_device *spi)
         return 0;
 }
 
-int at91_usart_spi_transfer_one(struct spi_controller *ctlr,
-                                struct spi_device *spi,
-                                struct spi_transfer *xfer)
+static int at91_usart_spi_transfer_one(struct spi_controller *ctlr,
+                                       struct spi_device *spi,
+                                       struct spi_transfer *xfer)
 {
         struct at91_usart_spi *aus = spi_master_get_devdata(ctlr);
 
@@ -242,8 +242,8 @@ int at91_usart_spi_transfer_one(struct spi_controller *ctlr,
         return 0;
 }
 
-int at91_usart_spi_prepare_message(struct spi_controller *ctlr,
-                                   struct spi_message *message)
+static int at91_usart_spi_prepare_message(struct spi_controller *ctlr,
+                                          struct spi_message *message)
 {
         struct at91_usart_spi *aus = spi_master_get_devdata(ctlr);
         struct spi_device *spi = message->spi;
@@ -256,8 +256,8 @@ int at91_usart_spi_prepare_message(struct spi_controller *ctlr,
         return 0;
 }
 
-int at91_usart_spi_unprepare_message(struct spi_controller *ctlr,
-                                     struct spi_message *message)
+static int at91_usart_spi_unprepare_message(struct spi_controller *ctlr,
+                                            struct spi_message *message)
 {
         struct at91_usart_spi *aus = spi_master_get_devdata(ctlr);