| Message ID | 20200827180735.38166-2-snelson@pensando.io |
|---|---|
| State | New |
| Headers | show |
| Series | [v2,net-next,01/12] ionic: set MTU floor at ETH_MIN_MTU | expand |
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c index 26988ad7ec97..235215c28f29 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c @@ -2079,7 +2079,8 @@ static struct ionic_lif *ionic_lif_alloc(struct ionic *ionic, unsigned int index lif->identity = lid; lif->lif_type = IONIC_LIF_TYPE_CLASSIC; ionic_lif_identify(ionic, lif->lif_type, lif->identity); - lif->netdev->min_mtu = le32_to_cpu(lif->identity->eth.min_frame_size); + lif->netdev->min_mtu = max_t(unsigned int, ETH_MIN_MTU, + le32_to_cpu(lif->identity->eth.min_frame_size)); lif->netdev->max_mtu = le32_to_cpu(lif->identity->eth.max_frame_size) - ETH_HLEN - VLAN_HLEN;
The NIC might tell us its minimum MTU, but let's be sure not to use something smaller than ETH_MIN_MTU. Signed-off-by: Shannon Nelson <snelson@pensando.io> --- drivers/net/ethernet/pensando/ionic/ionic_lif.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)