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| author |   Ioana Ciornei <ioana.ciornei@nxp.com> | 2020-07-14 16:34:27 +0300 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-07-15 16:22:36 +0200 |
| commit | 2cde6410c13d63cc306f395d9fa4b72605468061 (patch) | |
| tree | 345768eab8eb8e4372ad8f8a5a741377120df088 /drivers/staging/fsl-dpaa2 | |
| parent | staging: dpaa2-ethsw: fix reported link state (diff) | |
| download | linux-dev-2cde6410c13d63cc306f395d9fa4b72605468061.tar.xz linux-dev-2cde6410c13d63cc306f395d9fa4b72605468061.zip | |
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 <ioana.ciornei@nxp.com>
Link: https://lore.kernel.org/r/20200714133431.17532-3-ioana.ciornei@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/fsl-dpaa2')
| -rw-r--r-- | drivers/staging/fsl-dpaa2/ethsw/ethsw.c | 6 |
1 files changed, 6 insertions, 0 deletions
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); |