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

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Message-Id: <20171222084631.955642660@linuxfoundation.org>
Date:   Fri, 22 Dec 2017 09:47:18 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Niranjana Vishwanathapura <niranjana.vishwanathapura@...el.com>,
        Scott Franco <safranco@...el.com>,
        Dennis Dalessandro <dennis.dalessandro@...el.com>,
        Doug Ledford <dledford@...hat.com>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: [PATCH 4.14 153/159] IB/opa_vnic: Properly clear Mac Table Digest

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

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

From: Scott Franco <safranco@...el.com>


[ Upstream commit 4bbdfe25600c1909c26747d0b5c39fd0e409bb87 ]

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

Reviewed-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@...el.com>
Signed-off-by: Scott Franco <safranco@...el.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@...el.com>
Signed-off-by: Doug Ledford <dledford@...hat.com>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 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);
 }