This is a note to let you know that I've just added the patch titled
net: fix checksum features handling in netif_skb_features()
to the 3.16-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-fix-checksum-features-handling-in-netif_skb_features.patch
and it can be found in the queue-3.16 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Sun Oct 12 20:11:55 CEST 2014
From: =?UTF-8?q?Michal=20Kube=C4=8Dek?= <mkubecek@xxxxxxx>
Date: Mon, 25 Aug 2014 15:16:22 +0200
Subject: net: fix checksum features handling in netif_skb_features()
From: =?UTF-8?q?Michal=20Kube=C4=8Dek?= <mkubecek@xxxxxxx>
[ Upstream commit db115037bb57cdfe97078b13da762213f7980e81 ]
This is follow-up to
da08143b8520 ("vlan: more careful checksum features handling")
which introduced more careful feature intersection in vlan code,
taking into account that HW_CSUM should be considered superset
of IP_CSUM/IPV6_CSUM. The same is needed in netif_skb_features()
in order to avoid offloading mismatch warning when vlan is
created on top of a bond consisting of slaves supporting IP/IPv6
checksumming but not vlan Tx offloading.
Signed-off-by: Michal Kubecek <mkubecek@xxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/core/dev.c | 16 +++++++++++-----
1 file changed, 11 insertions(+), 5 deletions(-)
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2576,13 +2576,19 @@ netdev_features_t netif_skb_features(str
return harmonize_features(skb, features);
}
- features &= (skb->dev->vlan_features | NETIF_F_HW_VLAN_CTAG_TX |
- NETIF_F_HW_VLAN_STAG_TX);
+ features = netdev_intersect_features(features,
+ skb->dev->vlan_features |
+ NETIF_F_HW_VLAN_CTAG_TX |
+ NETIF_F_HW_VLAN_STAG_TX);
if (protocol == htons(ETH_P_8021Q) || protocol == htons(ETH_P_8021AD))
- features &= NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_FRAGLIST |
- NETIF_F_GEN_CSUM | NETIF_F_HW_VLAN_CTAG_TX |
- NETIF_F_HW_VLAN_STAG_TX;
+ features = netdev_intersect_features(features,
+ NETIF_F_SG |
+ NETIF_F_HIGHDMA |
+ NETIF_F_FRAGLIST |
+ NETIF_F_GEN_CSUM |
+ NETIF_F_HW_VLAN_CTAG_TX |
+ NETIF_F_HW_VLAN_STAG_TX);
return harmonize_features(skb, features);
}
Patches currently in stable-queue which might be from mkubecek@xxxxxxx are
queue-3.16/net-fix-checksum-features-handling-in-netif_skb_features.patch
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