net: Make UFO on master device independent of attached devices
Sridhar Samudrala [Wed, 7 Oct 2009 12:24:25 +0000 (12:24 +0000)]
Now that software UFO is supported, UFO can be enabled on master
devices like bridge, bond even though the attached device doesn't
support this feature in hardware.

This allows UFO to be used between KVM host and guest even when a
physical interface attached to the bridge doesn't support UFO.

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/core/dev.c

index a74c8fd..510ff20 100644 (file)
@@ -5489,7 +5489,7 @@ unsigned long netdev_increment_features(unsigned long all, unsigned long one,
        one |= NETIF_F_ALL_CSUM;
 
        one |= all & NETIF_F_ONE_FOR_ALL;
-       all &= one | NETIF_F_LLTX | NETIF_F_GSO;
+       all &= one | NETIF_F_LLTX | NETIF_F_GSO | NETIF_F_UFO;
        all |= one & mask & NETIF_F_ONE_FOR_ALL;
 
        return all;