From: Stephen Hemminger <shemminger@linux-foundation.org>
Date: Mon, 14 May 2007 19:38:15 +0000 (-0700)
Subject: sky2: memory barriers change
X-Git-Tag: v2.6.22-rc2~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=50432cb534b566c4fd9e371fb37464a65ccd2391;p=pandora-kernel.git

sky2: memory barriers change

Do some memory barrier changes for safety/perfomance:
Don't need read after update to index, mmiowb() followed by read at end
of irq is sufficient.

Signed-off-by: Stephn Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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