From: Alan Stern <stern@rowland.harvard.edu>
Date: Wed, 18 May 2011 08:44:50 +0000 (+0200)
Subject: USB: UHCI: Use ACCESS_ONCE rather than using a full compiler barrier
X-Git-Tag: v3.0-rc1~337^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bab1ff1bda27e654dfd382a1fbdfcda1f7ed0a37;p=pandora-kernel.git

USB: UHCI: Use ACCESS_ONCE rather than using a full compiler barrier

This patch (as1462) updates the special accessor functions defined in
uhci-hcd.h.  Rather than using a full compiler barrier, all we really
need is the ACCESS_ONCE() mechanism, because the idea is to force the
compiler to store a fixed copy of a possibly changing value.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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