On Thu, May 12, 2016 at 10:48:40AM +0200, Mathieu OTHACEHE wrote:
> Remove useless or redundant dev_dbg messages.
> Fix debug-message typos.
> 
> Signed-off-by: Mathieu OTHACEHE <m.othac...@gmail.com>
> ---
>  drivers/usb/serial/ti_usb_3410_5052.c | 28 +++++++++-------------------
>  1 file changed, 9 insertions(+), 19 deletions(-)
> 
> diff --git a/drivers/usb/serial/ti_usb_3410_5052.c 
> b/drivers/usb/serial/ti_usb_3410_5052.c
> index 1860a5a..88aacf5 100644

> @@ -846,7 +837,6 @@ static int ti_write_room(struct tty_struct *tty)
>       room = kfifo_avail(&port->write_fifo);
>       spin_unlock_irqrestore(&tport->tp_lock, flags);
>  
> -     dev_dbg(&port->dev, "%s - returns %d\n", __func__, room);
>       return room;
>  }
>  
> @@ -865,7 +855,6 @@ static int ti_chars_in_buffer(struct tty_struct *tty)
>       chars = kfifo_len(&port->write_fifo);
>       spin_unlock_irqrestore(&tport->tp_lock, flags);
>  
> -     dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars);
>       return chars;
>  }

While I agree with most of this, the above two can actually be useful to
keep.

> @@ -924,11 +913,9 @@ static int ti_ioctl(struct tty_struct *tty,
>  
>       switch (cmd) {
>       case TIOCGSERIAL:
> -             dev_dbg(&port->dev, "%s - TIOCGSERIAL\n", __func__);
>               return ti_get_serial_info(tport,
>                               (struct serial_struct __user *)arg);
>       case TIOCSSERIAL:
> -             dev_dbg(&port->dev, "%s - TIOCSSERIAL\n", __func__);
>               return ti_set_serial_info(tty, tport,
>                               (struct serial_struct __user *)arg);
>       }
> @@ -950,9 +937,15 @@ static void ti_set_termios(struct tty_struct *tty,
>       cflag = tty->termios.c_cflag;
>       iflag = tty->termios.c_iflag;
>  
> -     dev_dbg(&port->dev, "%s - cflag %08x, iflag %08x\n", __func__, cflag, 
> iflag);
> -     dev_dbg(&port->dev, "%s - old clfag %08x, old iflag %08x\n", __func__,
> -             old_termios->c_cflag, old_termios->c_iflag);
> +     dev_dbg(&port->dev,
> +             "%s - cflag 0x%08x, iflag 0x%08x\n", __func__, cflag, iflag);
> +
> +     if (old_termios) {
> +             dev_dbg(&port->dev, "%s - old clfag 0x%08x, old iflag 0x%08x\n",
> +                     __func__,
> +                     old_termios->c_cflag,
> +                     old_termios->c_iflag);
> +     }

old_termios is not used in the function, why not drop it instead and fix
up the call sites?

Note that it will currently never be NULL.

>  
>       if (tport == NULL)
>               return;
> @@ -1140,8 +1133,6 @@ static void ti_break(struct tty_struct *tty, int 
> break_state)
>       struct ti_port *tport = usb_get_serial_port_data(port);
>       int status;
>  
> -     dev_dbg(&port->dev, "%s - state = %d\n", __func__, break_state);

I'd keep this one as well.

> -
>       if (tport == NULL)
>               return;
>  
> @@ -1220,7 +1211,6 @@ static void ti_interrupt_callback(struct urb *urb)
>  
>       case TI_CODE_MODEM_STATUS:
>               msr = data[1];
> -             dev_dbg(dev, "%s - port %d, msr 0x%02X\n", __func__, 
> port_number, msr);
>               ti_handle_new_msr(tport, msr);
>               break;

And this one.

Thanks,
Johan

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