From: Ioana Ciornei Date: Tue, 14 Jul 2020 13:34:27 +0000 (+0300) Subject: staging: dpaa2-ethsw: ignore state interrupts when the interface is not running X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=2cde6410c13d63cc306f395d9fa4b72605468061;p=linux.git staging: dpaa2-ethsw: ignore state interrupts when the interface is not running 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 Link: https://lore.kernel.org/r/20200714133431.17532-3-ioana.ciornei@nxp.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/fsl-dpaa2/ethsw/ethsw.c b/drivers/staging/fsl-dpaa2/ethsw/ethsw.c index 46aa37093e86e..b57bc705c2ee9 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);