linux-kernel - Re: [PATCH] max3100 driver

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Message-ID: <20080920153412.15e26a93@lxorguk.ukuu.org.uk>
Date:	Sat, 20 Sep 2008 15:34:12 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Christian Pellegrin <chripell@...il.com>,
	linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org,
	Christian Pellegrin <chripell@...e.org>
Subject: Re: [PATCH] max3100 driver

> I do have a question though: what does a signed bitfield of 1 mean?
> I mean.. the variables are "int", so signed.... where will the compiler
> store the sign bit???

It sign extends so you get 0 or -1. Yes it would be good to use unsigned
to avoid suprises.
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