| Message ID | 1378157965-17537-19-git-send-email-vfalico@redhat.com |
|---|---|
| State | RFC, archived |
| Delegated to: | David Miller |
| Headers | show |
Mon, Sep 02, 2013 at 11:39:22PM CEST, vfalico@redhat.com wrote: >The boolean flag specifies which direction to go. > >CC: "David S. Miller" <davem@davemloft.net> >CC: Eric Dumazet <edumazet@google.com> >CC: Jiri Pirko <jiri@resnulli.us> >CC: Alexander Duyck <alexander.h.duyck@intel.com> >Signed-off-by: Veaceslav Falico <vfalico@redhat.com> >--- > include/linux/netdevice.h | 2 ++ > net/core/dev.c | 24 ++++++++++++++++++++++++ > 2 files changed, 26 insertions(+) > >diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h >index bde2244..a112ccc 100644 >--- a/include/linux/netdevice.h >+++ b/include/linux/netdevice.h >@@ -2835,6 +2835,8 @@ extern void *netdev_lower_dev_get_private_rcu(struct net_device *dev, > struct net_device *lower_dev); > extern void *netdev_lower_dev_get_private(struct net_device *dev, > struct net_device *lower_dev); >+extern void *netdev_lower_dev_get_next_private(struct net_device *dev, >+ void *private, bool prev); > extern int skb_checksum_help(struct sk_buff *skb); > extern struct sk_buff *__skb_gso_segment(struct sk_buff *skb, > netdev_features_t features, bool tx_path); >diff --git a/net/core/dev.c b/net/core/dev.c >index 6df11a0..c694059 100644 >--- a/net/core/dev.c >+++ b/net/core/dev.c >@@ -5163,6 +5163,30 @@ void *netdev_lower_dev_get_private(struct net_device *dev, > } > EXPORT_SYMBOL(netdev_lower_dev_get_private); > >+extern void *netdev_lower_dev_get_next_private(struct net_device *dev, >+ void *private, bool prev) ^^^^^^^^^^^ Please rather do this in 2 functions Next should return next, not previous... >+{ >+ struct netdev_adjacent *lower; >+ >+ list_for_each_entry(lower, &dev->neighbour_dev_list.lower, list) >+ if (lower->private == private) >+ break; >+ >+ if (&lower->list == &dev->neighbour_dev_list.lower) >+ return NULL; >+ >+ lower = prev ? list_entry(lower->list.prev, struct netdev_adjacent, list) : >+ list_entry(lower->list.next, struct netdev_adjacent, list); >+ if (&lower->list != &dev->neighbour_dev_list.lower) >+ return lower->private; >+ >+ lower = prev ? list_entry(lower->list.prev, struct netdev_adjacent, list) : >+ list_entry(lower->list.next, struct netdev_adjacent, list); >+ >+ return lower->private; >+} >+EXPORT_SYMBOL(netdev_lower_dev_get_next_private); >+ > static void dev_change_rx_flags(struct net_device *dev, int flags) > { > const struct net_device_ops *ops = dev->netdev_ops; >-- >1.8.4 > -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index bde2244..a112ccc 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2835,6 +2835,8 @@ extern void *netdev_lower_dev_get_private_rcu(struct net_device *dev, struct net_device *lower_dev); extern void *netdev_lower_dev_get_private(struct net_device *dev, struct net_device *lower_dev); +extern void *netdev_lower_dev_get_next_private(struct net_device *dev, + void *private, bool prev); extern int skb_checksum_help(struct sk_buff *skb); extern struct sk_buff *__skb_gso_segment(struct sk_buff *skb, netdev_features_t features, bool tx_path); diff --git a/net/core/dev.c b/net/core/dev.c index 6df11a0..c694059 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -5163,6 +5163,30 @@ void *netdev_lower_dev_get_private(struct net_device *dev, } EXPORT_SYMBOL(netdev_lower_dev_get_private); +extern void *netdev_lower_dev_get_next_private(struct net_device *dev, + void *private, bool prev) +{ + struct netdev_adjacent *lower; + + list_for_each_entry(lower, &dev->neighbour_dev_list.lower, list) + if (lower->private == private) + break; + + if (&lower->list == &dev->neighbour_dev_list.lower) + return NULL; + + lower = prev ? list_entry(lower->list.prev, struct netdev_adjacent, list) : + list_entry(lower->list.next, struct netdev_adjacent, list); + if (&lower->list != &dev->neighbour_dev_list.lower) + return lower->private; + + lower = prev ? list_entry(lower->list.prev, struct netdev_adjacent, list) : + list_entry(lower->list.next, struct netdev_adjacent, list); + + return lower->private; +} +EXPORT_SYMBOL(netdev_lower_dev_get_next_private); + static void dev_change_rx_flags(struct net_device *dev, int flags) { const struct net_device_ops *ops = dev->netdev_ops;
The boolean flag specifies which direction to go. CC: "David S. Miller" <davem@davemloft.net> CC: Eric Dumazet <edumazet@google.com> CC: Jiri Pirko <jiri@resnulli.us> CC: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> --- include/linux/netdevice.h | 2 ++ net/core/dev.c | 24 ++++++++++++++++++++++++ 2 files changed, 26 insertions(+)