diff options
Diffstat (limited to 'drivers/net/igb/igb_main.c')
| -rw-r--r-- | drivers/net/igb/igb_main.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index cdfd57271051..ce7838e55827 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -6349,21 +6349,25 @@ static void igb_restore_vlan(struct igb_adapter *adapter) } } -int igb_set_spd_dplx(struct igb_adapter *adapter, u16 spddplx) +int igb_set_spd_dplx(struct igb_adapter *adapter, u32 spd, u8 dplx) { struct pci_dev *pdev = adapter->pdev; struct e1000_mac_info *mac = &adapter->hw.mac; mac->autoneg = 0; + /* Make sure dplx is at most 1 bit and lsb of speed is not set + * for the switch() below to work */ + if ((spd & 1) || (dplx & ~1)) + goto err_inval; + /* Fiber NIC's only allow 1000 Gbps Full duplex */ if ((adapter->hw.phy.media_type == e1000_media_type_internal_serdes) && - spddplx != (SPEED_1000 + DUPLEX_FULL)) { - dev_err(&pdev->dev, "Unsupported Speed/Duplex configuration\n"); - return -EINVAL; - } + spd != SPEED_1000 && + dplx != DUPLEX_FULL) + goto err_inval; - switch (spddplx) { + switch (spd + dplx) { case SPEED_10 + DUPLEX_HALF: mac->forced_speed_duplex = ADVERTISE_10_HALF; break; @@ -6382,10 +6386,13 @@ int igb_set_spd_dplx(struct igb_adapter *adapter, u16 spddplx) break; case SPEED_1000 + DUPLEX_HALF: /* not supported */ default: - dev_err(&pdev->dev, "Unsupported Speed/Duplex configuration\n"); - return -EINVAL; + goto err_inval; } return 0; + +err_inval: + dev_err(&pdev->dev, "Unsupported Speed/Duplex configuration\n"); + return -EINVAL; } static int __igb_shutdown(struct pci_dev *pdev, bool *enable_wake) |