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authorBaoyou Xie <baoyou.xie@linaro.org>2016-09-26 19:58:56 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-09-27 12:55:27 +0200
commitb97055bcf17551196a498e624b544c3e9c804ef0 (patch)
tree1a3577c870e782714da5503395743bcf3dbf961e /drivers/tty
parentc41251b17563234371a9b376ed4914efa4bc079b (diff)
serial: stm32: mark symbols static where possible
We get 2 warnings when building kernel with W=1: drivers/tty/serial/stm32-usart.c:63:5: warning: no previous prototype for 'stm32_pending_rx' [-Wmissing-prototypes] drivers/tty/serial/stm32-usart.c:88:15: warning: no previous prototype for 'stm32_get_char' [-Wmissing-prototypes] In fact, these two functions are only used in the file in which they are declared and don't need a declaration, but can be made static. So this patch marks these functions with 'static'. Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
-rw-r--r--drivers/tty/serial/stm32-usart.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c
index 2adb678a863b..033856287ca2 100644
--- a/drivers/tty/serial/stm32-usart.c
+++ b/drivers/tty/serial/stm32-usart.c
@@ -60,8 +60,8 @@ static void stm32_clr_bits(struct uart_port *port, u32 reg, u32 bits)
writel_relaxed(val, port->membase + reg);
}
-int stm32_pending_rx(struct uart_port *port, u32 *sr, int *last_res,
- bool threaded)
+static int stm32_pending_rx(struct uart_port *port, u32 *sr, int *last_res,
+ bool threaded)
{
struct stm32_port *stm32_port = to_stm32_port(port);
struct stm32_usart_offsets *ofs = &stm32_port->info->ofs;
@@ -85,7 +85,8 @@ int stm32_pending_rx(struct uart_port *port, u32 *sr, int *last_res,
return 0;
}
-unsigned long stm32_get_char(struct uart_port *port, u32 *sr, int *last_res)
+static unsigned long
+stm32_get_char(struct uart_port *port, u32 *sr, int *last_res)
{
struct stm32_port *stm32_port = to_stm32_port(port);
struct stm32_usart_offsets *ofs = &stm32_port->info->ofs;