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vdpa/mlx5: Fix PA offset with unaligned starting iotlb map
When calculating the physical address range based on the iotlb and mr
[start,end) ranges, the offset of mr->start relative to map->start
is not taken into account. This leads to some incorrect and duplicate
mappings.
For the case when mr->start < map->start the code is already correct:
the range in [mr->start, map->start) was handled by a different
iteration.
Fixes: 94abbcc ("vdpa/mlx5: Add shared memory registration code")
Cc: stable@vger.kernel.org
Signed-off-by: Si-Wei Liu <si-wei.liu@oracle.com>
Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Message-Id: <20241021134040.975221-2-dtatulea@nvidia.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
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