From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Tue, 11 Nov 2014 14:31:56 +0000 (+0000)
Subject: xen/arm: if(pfn_valid(pfn)) call native dma_ops
X-Git-Tag: omap-for-v3.20/drop-legacy-3517~118^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2f91fc331ad495a3e602f3d0e7fd6211b1d91204;p=pandora-kernel.git

xen/arm: if(pfn_valid(pfn)) call native dma_ops

Remove code duplication in mm32.c by calling the native dma_ops if the
page is a local page (not a foreign page). Use a simple pfn_valid(pfn)
check to figure out if the page is local, exploiting the fact that dom0
is mapped 1:1, therefore pfn_valid always returns false when called on a
foreign mfn.

Suggested-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
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