From: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Date: Tue, 11 Jan 2011 01:42:21 +0000 (-0800)
Subject: IB/qib: Avoid duplicate writes to the rcv head register
X-Git-Tag: v2.6.38-rc1~406^2^7~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aa7374ac19ca08715693b0a2d9f88f479af3ea7c;p=pandora-kernel.git

IB/qib: Avoid duplicate writes to the rcv head register

Avoid duplicate writes to the head register as this can lead to lost
interrupts if the context goes full before the second write is done.

Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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