From f6dafa95d1a48f73ab4a5b0f7dc0dcb72817e051 Mon Sep 17 00:00:00 2001
From: Changli Gao <xiaosuo@gmail.com>
Date: Tue, 7 Dec 2010 04:26:16 +0000
Subject: [PATCH] af_packet: eliminate pgv_to_page on some arches

Some arches don't need flush_dcache_page(), and don't implement it, so
we can eliminate pgv_to_page() calls on those arches.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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