linux-kernel - Re: [PATCH] RS485 on Cris: use global value of TIOCSRS485

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Date:	Thu, 06 Jan 2011 17:58:16 +0100
From:	Claudio Scordino <claudio@...dence.eu.com>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
CC:	starvik@...s.com, Jesper Nilsson <Jesper.Nilsson@...s.com>,
	linux-cris-kernel <linux-cris-kernel@...s.com>,
	"linux-serial@...r.kernel.org" <linux-serial@...r.kernel.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] RS485 on Cris: use global value of TIOCSRS485

Il 06/01/2011 14:34, Alan Cox ha scritto:
>> With this patch, TIOCSRS485 gets the same value across all
>> architectures, making maintenance and portability of user-level code
>> easier.
>
> I don't see why this is worth doing - no application code should ever
> hardcode the value.

I'm afraid this is true only in a theoretical world. But I hope I'm
wrong.

Actually, I can't see any reason to keep different values of TIOCSRS485
in the kernel code when we can have a single value across all
architectures.

But I trust your judgment: if you say it's not worth doing, let's
avoid it.

Many thanks,

	Claudio
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