linux-kernel - Re: [PATCH 4/4] tty: serial: qcom_geni_serial: Use u32 for register variables

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Date:   Fri, 4 Jan 2019 11:05:10 -0800
From:   Evan Green <evgreen@...omium.org>
To:     Ryan Case <ryandcase@...omium.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>,
        Doug Anderson <dianders@...omium.org>,
        linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org,
        Stephen Boyd <swboyd@...omium.org>
Subject: Re: [PATCH 4/4] tty: serial: qcom_geni_serial: Use u32 for register variables

On Wed, Jan 2, 2019 at 1:37 PM Ryan Case <ryandcase@...omium.org> wrote:
>
> Signed-off-by: Ryan Case <ryandcase@...omium.org>
> ---
>
>  drivers/tty/serial/qcom_geni_serial.c | 22 +++++++++++-----------
>  1 file changed, 11 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
> index 3103aa0adc86..fa67a2ced420 100644
> --- a/drivers/tty/serial/qcom_geni_serial.c
> +++ b/drivers/tty/serial/qcom_geni_serial.c
> @@ -765,12 +765,12 @@ static void qcom_geni_serial_handle_tx(struct uart_port *uport, bool done,
>
>  static irqreturn_t qcom_geni_serial_isr(int isr, void *dev)
>  {
> -       unsigned int m_irq_status;
> -       unsigned int s_irq_status;
> -       unsigned int geni_status;
> +       u32 m_irq_en;
> +       u32 m_irq_status;
> +       u32 s_irq_status;
> +       u32 geni_status;
>         struct uart_port *uport = dev;
>         unsigned long flags;
> -       unsigned int m_irq_en;
>         bool drop_rx = false;
>         struct tty_port *tport = &uport->state->port;
>         struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
> @@ -948,14 +948,14 @@ static void qcom_geni_serial_set_termios(struct uart_port *uport,
>                                 struct ktermios *termios, struct ktermios *old)
>  {
>         unsigned int baud;
> -       unsigned int bits_per_char;
> -       unsigned int tx_trans_cfg;
> -       unsigned int tx_parity_cfg;
> -       unsigned int rx_trans_cfg;
> -       unsigned int rx_parity_cfg;
> -       unsigned int stop_bit_len;
> +       u32 bits_per_char;
> +       u32 tx_trans_cfg;
> +       u32 tx_parity_cfg;
> +       u32 rx_trans_cfg;
> +       u32 rx_parity_cfg;
> +       u32 stop_bit_len;
>         unsigned int clk_div;
> -       unsigned long ser_clk_cfg;
> +       u32 ser_clk_cfg;
>         struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
>         unsigned long clk_rate;
>
> --
> 2.20.1.415.g653613c723-goog
>

I did a brief search tour of unsigned in this file, and also found
rxstale in qcom_geni_serial_port_setup. Other than that and the commit
message:

Reviewed-by: Evan Green <evgreen@...omium.org>