From 35577079b9943e158c7032afe1dde6faf4385222 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Fri, 23 Jan 2015 16:37:52 +0100
Subject: [PATCH] iommu/tegra: gart: Provide default ->map_sg() callback

Commit 315786ebbf4a ("iommu: Add iommu_map_sg() function") adds a new
->map_sg() callback and provides a default implementation that drivers
can use until they implement a hardware-specific variant. Unfortunately
the Tegra GART driver was not updated as part of that commit, so that
iommu_map_sg() calls on a domain provided by the GART cause an oops.

Fixes: 315786ebbf4a ("iommu: Add iommu_map_sg() function")
Cc: Hiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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