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Diffstat (limited to 'net/bridge/br_if.c')
-rw-r--r--net/bridge/br_if.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index f5d47bf4f96..fdec773f5b5 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -372,12 +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_IP_CSUM|NETIF_F_NO_CSUM|NETIF_F_HW_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;
}