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authorIngo Molnar <mingo@kernel.org>2017-06-14 08:31:46 +0300
committerIngo Molnar <mingo@kernel.org>2017-06-14 08:31:46 +0300
commit10b90ee2eccca042e2d762881dd7119d201f0898 (patch)
tree1ebc06bf55a3e33244228d008a2db0197ae2281e /include/linux/if_vlan.h
parent84bcc1d57f634ba8a55eda9a910c159467af0aac (diff)
parent32c1431eea4881a6b17bd7c639315010aeefa452 (diff)
downloadlinux-10b90ee2eccca042e2d762881dd7119d201f0898.tar.xz
Merge tag 'v4.12-rc5' into ras/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/if_vlan.h')
-rw-r--r--include/linux/if_vlan.h18
1 files changed, 10 insertions, 8 deletions
diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index 8d5fcd6284ce..283dc2f5364d 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -614,14 +614,16 @@ static inline bool skb_vlan_tagged_multi(const struct sk_buff *skb)
static inline netdev_features_t vlan_features_check(const struct sk_buff *skb,
netdev_features_t features)
{
- if (skb_vlan_tagged_multi(skb))
- features = netdev_intersect_features(features,
- NETIF_F_SG |
- NETIF_F_HIGHDMA |
- NETIF_F_FRAGLIST |
- NETIF_F_HW_CSUM |
- NETIF_F_HW_VLAN_CTAG_TX |
- NETIF_F_HW_VLAN_STAG_TX);
+ if (skb_vlan_tagged_multi(skb)) {
+ /* In the case of multi-tagged packets, use a direct mask
+ * instead of using netdev_interesect_features(), to make
+ * sure that only devices supporting NETIF_F_HW_CSUM will
+ * have checksum offloading support.
+ */
+ features &= NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_HW_CSUM |
+ NETIF_F_FRAGLIST | NETIF_F_HW_VLAN_CTAG_TX |
+ NETIF_F_HW_VLAN_STAG_TX;
+ }
return features;
}