From 107c3f4d42adc9af393019b795dd2177fbe9e465 Mon Sep 17 00:00:00 2001
From: Michael Chan <mchan@broadcom.com>
Date: Wed, 2 Mar 2011 13:00:49 +0000
Subject: [PATCH] cnic: Prevent status block race conditions with hardware

The status block index is used to acknowledge interrupt events and must
be read before checking for the interrupt events, so we need to add rmb()
to guarantee that.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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