Re: [PATCH] staging: gdm724x: gdm_tty: replaced macro with a function

[Joe Perches]

On Tue, 2020-09-01 at 22:16 +0200, Antoni Przybylik wrote:
> This approach is more elegant and prevents some problems related to
> macros such as operator precedence in expanded expression.
[]
> diff --git a/drivers/staging/gdm724x/gdm_tty.c b/drivers/staging/gdm724x/gdm_tty.c
[]
> @@ -36,6 +34,11 @@ static DEFINE_MUTEX(gdm_table_lock);
>  static const char *DRIVER_STRING[TTY_MAX_COUNT] = {"GCTATC", "GCTDM"};
>  static char *DEVICE_STRING[TTY_MAX_COUNT] = {"GCT-ATC", "GCT-DM"};
>  
> +static int gdm_tty_ready(struct gdm *gdm)
> +{
> +	return (gdm && gdm->tty_dev && gdm->port.count);
> +}

static bool  gdm_tty_ready might be better.