Messages in this thread Patch in this message | | | From | Ioana Ciornei <> | Subject | [PATCH 2/6] staging: dpaa2-ethsw: ignore state interrupts when the interface is not running | Date | Tue, 14 Jul 2020 16:34:27 +0300 |
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Link state interrupts will be transmitted to the DPSW object even though the user has not yet issued a 'ifconfig up' on a switch interface. Don't act on those interrupts since there are of no interrest.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> --- drivers/staging/fsl-dpaa2/ethsw/ethsw.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/staging/fsl-dpaa2/ethsw/ethsw.c b/drivers/staging/fsl-dpaa2/ethsw/ethsw.c index 46aa37093e86..b57bc705c2ee 100644 --- a/drivers/staging/fsl-dpaa2/ethsw/ethsw.c +++ b/drivers/staging/fsl-dpaa2/ethsw/ethsw.c @@ -445,6 +445,12 @@ static int port_carrier_state_sync(struct net_device *netdev) struct dpsw_link_state state; int err; + /* Interrupts are received even though no one issued an 'ifconfig up' + * on the switch interface. Ignore these link state update interrupts + */ + if (!netif_running(netdev)) + return 0; + err = dpsw_if_get_link_state(port_priv->ethsw_data->mc_io, 0, port_priv->ethsw_data->dpsw_handle, port_priv->idx, &state); -- 2.25.1
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