linux-kernel - Example use of sign

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Message-Id: <1423739490-5187-1-git-send-email-martink@posteo.de>
Date:	Thu, 12 Feb 2015 12:11:29 +0100
From:	Martin Kepplinger <martink@...teo.de>
To:	linux@...ck-us.net, mingo@...nel.org, hpa@...or.com
Cc:	peterz@...radead.org, torvalds@...ux-foundation.org,
	jsrhbz@...argh.force9.co.uk,
	christoph.muellner@...obroma-systems.com, linux@...musvillemoes.dk,
	paulmck@...ux.vnet.ibm.com, tglx@...utronix.de,
	akpm@...ux-foundation.org, maxime.coquelin@...com,
	linux-kernel@...r.kernel.org, tytso@....edu,
	linux-tip-commits@...r.kernel.org
Subject: Example use of sign_extend64()

>From a first look, there are quite some places in arch where sign extension
is done. I append one example for review although I didn't even build this.
Don't use it unreviewed!

I guess the doc-addition to sign_extend32() would be valuable for it to be
used more often in long term.
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