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    Subject[PATCH AUTOSEL 4.19 27/60] ibmvnic: Refresh device multicast list after reset
    Date
    From: Thomas Falcon <tlfalcon@linux.ibm.com>

    [ Upstream commit be32a24372cf162e825332da1a7ccef058d4f20b ]

    It was observed that multicast packets were no longer received after
    a device reset. The fix is to resend the current multicast list to
    the backing device after recovery.

    Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/net/ethernet/ibm/ibmvnic.c | 3 +++
    1 file changed, 3 insertions(+)

    diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
    index bf0a5fe0da17..b88af81499e8 100644
    --- a/drivers/net/ethernet/ibm/ibmvnic.c
    +++ b/drivers/net/ethernet/ibm/ibmvnic.c
    @@ -1854,6 +1854,9 @@ static int do_reset(struct ibmvnic_adapter *adapter,
    return 0;
    }

    + /* refresh device's multicast list */
    + ibmvnic_set_multi(netdev);
    +
    /* kick napi */
    for (i = 0; i < adapter->req_rx_queues; i++)
    napi_schedule(&adapter->napi[i]);
    --
    2.20.1
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