diff options
Diffstat (limited to 'net/bridge/br_if.c')
| -rw-r--r-- | net/bridge/br_if.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c index 90c95f59dc82..fdec773f5b52 100644 --- a/net/bridge/br_if.c +++ b/net/bridge/br_if.c @@ -372,11 +372,17 @@ void br_features_recompute(struct net_bridge *br) struct net_bridge_port *p; unsigned long features, checksum; - features = br->feature_mask &~ NETIF_F_IP_CSUM; - checksum = br->feature_mask & NETIF_F_IP_CSUM; + checksum = br->feature_mask & NETIF_F_ALL_CSUM ? NETIF_F_NO_CSUM : 0; + features = br->feature_mask & ~NETIF_F_ALL_CSUM; list_for_each_entry(p, &br->port_list, list) { - if (!(p->dev->features & NETIF_F_ALL_CSUM)) + if (checksum & NETIF_F_NO_CSUM && + !(p->dev->features & NETIF_F_NO_CSUM)) + checksum ^= NETIF_F_NO_CSUM | NETIF_F_HW_CSUM; + if (checksum & NETIF_F_HW_CSUM && + !(p->dev->features & NETIF_F_HW_CSUM)) + checksum ^= NETIF_F_HW_CSUM | NETIF_F_IP_CSUM; + if (!(p->dev->features & NETIF_F_IP_CSUM)) checksum = 0; features &= p->dev->features; } |