IB/core: Convert OPA AH to IB for Extended LIDs only

When deciding to convert an OPA AH to IB we were incorrectly
including the IB multicast range. At this layer, all Extended
LIDs will be larger than IB_LID_PERMISSIVE. Change comparison
accordingly.

Fixes: d541e45500bd ("IB/core: Convert ah_attr from OPA to IB when copying to user")
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/infiniband/core/uverbs_marshall.c b/drivers/infiniband/core/uverbs_marshall.c
index aeb2824efbc7e78f6fd70cd32d6cdb7db0d6e29d..bb372b4713a41c20dbbf01f6176d731b4dfad3d3 100644 (file)
--- a/drivers/infiniband/core/uverbs_marshall.c
+++ b/drivers/infiniband/core/uverbs_marshall.c
@@ -69,8 +69,7 @@ void ib_copy_ah_attr_to_user(struct ib_device *device,
        memset(&dst->grh.reserved, 0, sizeof(dst->grh.reserved));
 
        if ((ah_attr->type == RDMA_AH_ATTR_TYPE_OPA) &&
-           (rdma_ah_get_dlid(ah_attr) >=
-            be16_to_cpu(IB_MULTICAST_LID_BASE)) &&
+           (rdma_ah_get_dlid(ah_attr) > be16_to_cpu(IB_LID_PERMISSIVE)) &&
            (!rdma_ah_conv_opa_to_ib(device, &conv_ah, ah_attr)))
                src = &conv_ah;