Re: [PATCH 09/15] tty: serial: qcom-geni-serial: drop the return value from handle_rx

Konrad Dybcio
2022-11-18T13:28:21Z

On 18/11/2022 13:25, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
>
> The return value of the handle_rx() callback is never checked. Drop it.
>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>

Konrad
> drivers/tty/serial/qcom_geni_serial.c | 14 ++++++--------
> 1 file changed, 6 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
> index 4b155ca0ac74..72d0e7b91080 100644
> --- a/drivers/tty/serial/qcom_geni_serial.c
> +++ b/drivers/tty/serial/qcom_geni_serial.c
> @@ -114,7 +114,7 @@ struct qcom_geni_serial_port {
> u32 tx_fifo_width;
> u32 rx_fifo_depth;
> bool setup;
> - int (*handle_rx)(struct uart_port *uport, u32 bytes, bool drop);
> + void (*handle_rx)(struct uart_port *uport, u32 bytes, bool drop);
> unsigned int baud;
> void *rx_fifo;
> u32 loopback;
> @@ -499,7 +499,7 @@ static void qcom_geni_serial_console_write(struct console *co, const char *s,
> spin_unlock_irqrestore(&uport->lock, flags);
> }
>
> -static int handle_rx_console(struct uart_port *uport, u32 bytes, bool drop)
> +static void handle_rx_console(struct uart_port *uport, u32 bytes, bool drop)
> {
> u32 i;
> unsigned char buf[sizeof(u32)];
> @@ -534,16 +534,15 @@ static int handle_rx_console(struct uart_port *uport, u32 bytes, bool drop)
> }
> if (!drop)
> tty_flip_buffer_push(tport);
> - return 0;
> }
> #else
> -static int handle_rx_console(struct uart_port *uport, u32 bytes, bool drop)
> +static void handle_rx_console(struct uart_port *uport, u32 bytes, bool drop)
> {
> - return -EPERM;
> +
> }
> #endif /* CONFIG_SERIAL_QCOM_GENI_CONSOLE */
>
> -static int handle_rx_uart(struct uart_port *uport, u32 bytes, bool drop)
> +static void handle_rx_uart(struct uart_port *uport, u32 bytes, bool drop)
> {
> struct tty_port *tport;
> struct qcom_geni_serial_port *port = to_dev_port(uport);
> @@ -554,7 +553,7 @@ static int handle_rx_uart(struct uart_port *uport, u32 bytes, bool drop)
> tport = &uport->state->port;
> ioread32_rep(uport->membase + SE_GENI_RX_FIFOn, port->rx_fifo, words);
> if (drop)
> - return 0;
> + return;
>
> ret = tty_insert_flip_string(tport, port->rx_fifo, bytes);
> if (ret != bytes) {
> @@ -564,7 +563,6 @@ static int handle_rx_uart(struct uart_port *uport, u32 bytes, bool drop)
> }
> uport->icount.rx += ret;
> tty_flip_buffer_push(tport);
> - return ret;
> }
>
> static unsigned int qcom_geni_serial_tx_empty(struct uart_port *uport)