linux-kernel - Re: [PATCH] iio: imu: adis16400: Fix sign extension

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Message-ID: <54C20CA5.7050204@metafoo.de>
Date:	Fri, 23 Jan 2015 09:56:05 +0100
From:	Lars-Peter Clausen <lars@...afoo.de>
To:	Rasmus Villemoes <linux@...musvillemoes.dk>,
	Michael Hennerich <Michael.Hennerich@...log.com>,
	Jonathan Cameron <jic23@...nel.org>,
	Hartmut Knaack <knaack.h@....de>,
	Peter Meerwald <pmeerw@...erw.net>
CC:	linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] iio: imu: adis16400: Fix sign extension

On 01/23/2015 12:34 AM, Rasmus Villemoes wrote:
> The intention is obviously to sign-extend a 12 bit quantity. But
> because of C's promotion rules, the assignment is equivalent to "val16
> &= 0xfff;". Use the proper API for this.
>
> Signed-off-by: Rasmus Villemoes <linux@...musvillemoes.dk>

Acked-by: Lars-Peter Clausen <lars@...afoo.de>

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