[PATCH 4.14 153/159] IB/opa_vnic: Properly clear Mac Table Digest

[Greg Kroah-Hartman]

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Scott Franco <safranco@xxxxxxxxx>


[ Upstream commit 4bbdfe25600c1909c26747d0b5c39fd0e409bb87 ]

Clear the MAC table digest when the MAC table is freed.

Reviewed-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@xxxxxxxxx>
Signed-off-by: Scott Franco <safranco@xxxxxxxxx>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@xxxxxxxxx>
Signed-off-by: Doug Ledford <dledford@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c
+++ b/drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c
@@ -139,6 +139,7 @@ void opa_vnic_release_mac_tbl(struct opa
 	rcu_assign_pointer(adapter->mactbl, NULL);
 	synchronize_rcu();
 	opa_vnic_free_mac_tbl(mactbl);
+	adapter->info.vport.mac_tbl_digest = 0;
 	mutex_unlock(&adapter->mactbl_lock);
 }