linux-kernel - Re: [PATCH] serial: Delete dead code for CIR serial ports

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Date:   Fri, 16 Jun 2017 14:43:54 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Matthias Brugger <mbrugger@...e.com>, gregkh@...uxfoundation.org,
        jslaby@...e.com
Cc:     ed.blake@...tec.com, vigneshr@...com, alexander.sverdlin@...ia.com,
        yegorslists@...glemail.com, dhowells@...hat.com,
        linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] serial: Delete dead code for CIR serial ports

On Thu, 2017-06-15 at 17:54 +0200, Matthias Brugger wrote:
> Commit e4fda3a04275 ("serial: don't register CIR serial ports") adds a
> check for PORT_8250_CIR to serial8250_register_8250_port(). But the
> code
> isn't needed as the function never takes the branch when the port is
> CIR
> serial port.

> +		if (serial8250_isa_config != NULL)

> +			serial8250_isa_config(0, &uart->port,
> +					&uart->capabilities);

Can't it be one line after all?

>  

> +		ret = uart_add_one_port(&serial8250_reg,
> +					&uart->port);

Ditto.

> +		if (ret == 0)
> +			ret = uart->port.line;

-- 
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Intel Finland Oy