This reverts commit 45b503548210fe6f23e92b856421c2a3f05fd034. It contains deadlock, and breaks userspace applications (wpa_supplicant, networkmanager). References:
http://bugzilla.kernel.org/show_bug.cgi?id=10002 http://bugzilla.kernel.org/show_bug.cgi?id=10002 --- net/core/rtnetlink.c | 36 ++++++++++-------------------------- 1 files changed, 10 insertions(+), 26 deletions(-) diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index ecb02af..61ac8d0 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -504,7 +504,7 @@ int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst, u32 id, EXPORT_SYMBOL_GPL(rtnl_put_cacheinfo); -static int set_operstate(struct net_device *dev, unsigned char transition, bool send_notification) +static void set_operstate(struct net_device *dev, unsigned char transition) { unsigned char operstate = dev->operstate; @@ -527,12 +527,8 @@ static int set_operstate(struct net_device *dev, unsigned char transition, bool write_lock_bh(&dev_base_lock); dev->operstate = operstate; write_unlock_bh(&dev_base_lock); - - if (send_notification) - netdev_state_change(dev); - return 1; - } else - return 0; + netdev_state_change(dev); + } } static void copy_rtnl_link_stats(struct rtnl_link_stats *a, @@ -826,7 +822,6 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm, if (tb[IFLA_BROADCAST]) { nla_memcpy(dev->broadcast, tb[IFLA_BROADCAST], dev->addr_len); send_addr_notify = 1; - modified = 1; } if (ifm->ifi_flags || ifm->ifi_change) { @@ -839,23 +834,16 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm, dev_change_flags(dev, flags); } - if (tb[IFLA_TXQLEN]) { - if (dev->tx_queue_len != nla_get_u32(tb[IFLA_TXQLEN])) { - dev->tx_queue_len = nla_get_u32(tb[IFLA_TXQLEN]); - modified = 1; - } - } + if (tb[IFLA_TXQLEN]) + dev->tx_queue_len = nla_get_u32(tb[IFLA_TXQLEN]); if (tb[IFLA_OPERSTATE]) - modified |= set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE]), false); + set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE])); if (tb[IFLA_LINKMODE]) { - if (dev->link_mode != nla_get_u8(tb[IFLA_LINKMODE])) { - write_lock_bh(&dev_base_lock); - dev->link_mode = nla_get_u8(tb[IFLA_LINKMODE]); - write_lock_bh(&dev_base_lock); - modified = 1; - } + write_lock_bh(&dev_base_lock); + dev->link_mode = nla_get_u8(tb[IFLA_LINKMODE]); + write_unlock_bh(&dev_base_lock); } err = 0; @@ -869,10 +857,6 @@ errout: if (send_addr_notify) call_netdevice_notifiers(NETDEV_CHANGEADDR, dev); - - if (modified) - netdev_state_change(dev); - return err; } @@ -990,7 +974,7 @@ struct net_device *rtnl_create_link(struct net *net, char *ifname, if (tb[IFLA_TXQLEN]) dev->tx_queue_len = nla_get_u32(tb[IFLA_TXQLEN]); if (tb[IFLA_OPERSTATE]) - set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE]), true); + set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE])); if (tb[IFLA_LINKMODE]) dev->link_mode = nla_get_u8(tb[IFLA_LINKMODE]); -- 1.5.2.4 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
