From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 22 Mar 2011 16:08:15 +0000 (+0100)
Subject: genirq: Provide a lockdep helper
X-Git-Tag: v2.6.39-rc1~62^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d3e17deb1790ee2123e9d11420be6411d1768b47;p=pandora-kernel.git

genirq: Provide a lockdep helper

Some irq chips need to call genirq functions for nested chips from
their callbacks. That upsets lockdep. So they need to set a different
lock class for those nested chips. Provide a helper function to avoid
open access to irq_desc.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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