Re: [PATCH tty-next v4 2/6] serial: 8250: Use frame rate to determine timeout

[Andy Shevchenko]

On Fri, Dec 27, 2024 at 11:51:18PM +0106, John Ogness wrote:
> Rather than using a hard-coded per-character Tx-timeout of 10ms,
> use the frame rate to determine a timeout value. The value is
> doubled to ensure that a timeout is only hit during unexpected
> circumstances.
> 
> Since the frame rate may not be available during early printing,
> the previous 10ms value is kept as a fallback.

...

>  	unsigned int status, tmout = 10000;
>  
> -	/* Wait up to 10ms for the character(s) to be sent. */
> +	/*
> +	 * Wait for a character to be sent. Fallback to a safe default
> +	 * timeout value if @frame_time is not available.
> +	 */

> +

Redundant blank line (esp. after addressing below).

> +	if (up->port.frame_time)
> +		tmout = up->port.frame_time * 2 / NSEC_PER_USEC;

This will be harder to maintain in case some new code will be squeezed in
between, so I propose to make it if-else.

-- 
With Best Regards,
Andy Shevchenko