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>
This commit is contained in:
Baoyou Xie 2016-09-26 19:58:56 +08:00 коммит произвёл Greg Kroah-Hartman
Родитель c41251b175
Коммит b97055bcf1
1 изменённых файлов: 4 добавлений и 3 удалений

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@ -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;