diff options
| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-04-23 16:07:15 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-04-23 16:07:15 -0700 |
| commit | 57eb13a9e8f5d45a95d64da2174528666240031d (patch) | |
| tree | 71aa69d108c3050a132c1181cb9b4a9eb69ac04e /net/core/dev.c | |
| parent | 04bb1719c4de94700056241d4c0fe3c1413f5aff (diff) | |
| parent | 96a938aa214e965d5b4a2f10443b29cad14289b9 (diff) | |
Merge branch 'ib-chrome-platform-input-atmel-mx-ts-platform-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform into next
Sync up with chrome-platform to bring in changes to Atmel touch
controller.
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 36 |
1 files changed, 24 insertions, 12 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index d4362befe7e2..12be20535714 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -3278,15 +3278,23 @@ static inline int __dev_xmit_skb(struct sk_buff *skb, struct Qdisc *q, #if IS_ENABLED(CONFIG_CGROUP_NET_PRIO) static void skb_update_prio(struct sk_buff *skb) { - struct netprio_map *map = rcu_dereference_bh(skb->dev->priomap); + const struct netprio_map *map; + const struct sock *sk; + unsigned int prioidx; - if (!skb->priority && skb->sk && map) { - unsigned int prioidx = - sock_cgroup_prioidx(&skb->sk->sk_cgrp_data); + if (skb->priority) + return; + map = rcu_dereference_bh(skb->dev->priomap); + if (!map) + return; + sk = skb_to_full_sk(skb); + if (!sk) + return; - if (prioidx < map->priomap_len) - skb->priority = map->priomap[prioidx]; - } + prioidx = sock_cgroup_prioidx(&sk->sk_cgrp_data); + + if (prioidx < map->priomap_len) + skb->priority = map->priomap[prioidx]; } #else #define skb_update_prio(skb) @@ -6396,6 +6404,7 @@ static int __netdev_upper_dev_link(struct net_device *dev, .linking = true, .upper_info = upper_info, }; + struct net_device *master_dev; int ret = 0; ASSERT_RTNL(); @@ -6407,11 +6416,14 @@ static int __netdev_upper_dev_link(struct net_device *dev, if (netdev_has_upper_dev(upper_dev, dev)) return -EBUSY; - if (netdev_has_upper_dev(dev, upper_dev)) - return -EEXIST; - - if (master && netdev_master_upper_dev_get(dev)) - return -EBUSY; + if (!master) { + if (netdev_has_upper_dev(dev, upper_dev)) + return -EEXIST; + } else { + master_dev = netdev_master_upper_dev_get(dev); + if (master_dev) + return master_dev == upper_dev ? -EEXIST : -EBUSY; + } ret = call_netdevice_notifiers_info(NETDEV_PRECHANGEUPPER, &changeupper_info.info); |