From 90c325e3bfe14ef360de6650fa2a2e92685e5cee Mon Sep 17 00:00:00 2001 From: Nicolas Dichtel Date: Mon, 1 Sep 2014 16:07:28 +0200 Subject: [PATCH] rtnl/do_setlink(): last arg is now a set of flags There is no functional changes with this commit, it only prepares the next one. Signed-off-by: Nicolas Dichtel Signed-off-by: David S. Miller --- net/core/rtnetlink.c | 43 ++++++++++++++++++++++--------------------- 1 file changed, 22 insertions(+), 21 deletions(-) diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 2bd9fb15b987..7d84db3e0597 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -1481,9 +1481,10 @@ static int do_set_master(struct net_device *dev, int ifindex) return 0; } +#define DO_SETLINK_MODIFIED 0x01 static int do_setlink(const struct sk_buff *skb, struct net_device *dev, struct ifinfomsg *ifm, - struct nlattr **tb, char *ifname, int modified) + struct nlattr **tb, char *ifname, int status) { const struct net_device_ops *ops = dev->netdev_ops; int err; @@ -1502,7 +1503,7 @@ static int do_setlink(const struct sk_buff *skb, put_net(net); if (err) goto errout; - modified = 1; + status |= DO_SETLINK_MODIFIED; } if (tb[IFLA_MAP]) { @@ -1531,7 +1532,7 @@ static int do_setlink(const struct sk_buff *skb, if (err < 0) goto errout; - modified = 1; + status |= DO_SETLINK_MODIFIED; } if (tb[IFLA_ADDRESS]) { @@ -1551,19 +1552,19 @@ static int do_setlink(const struct sk_buff *skb, kfree(sa); if (err) goto errout; - modified = 1; + status |= DO_SETLINK_MODIFIED; } if (tb[IFLA_MTU]) { err = dev_set_mtu(dev, nla_get_u32(tb[IFLA_MTU])); if (err < 0) goto errout; - modified = 1; + status |= DO_SETLINK_MODIFIED; } if (tb[IFLA_GROUP]) { dev_set_group(dev, nla_get_u32(tb[IFLA_GROUP])); - modified = 1; + status |= DO_SETLINK_MODIFIED; } /* @@ -1575,7 +1576,7 @@ static int do_setlink(const struct sk_buff *skb, err = dev_change_name(dev, ifname); if (err < 0) goto errout; - modified = 1; + status |= DO_SETLINK_MODIFIED; } if (tb[IFLA_IFALIAS]) { @@ -1583,7 +1584,7 @@ static int do_setlink(const struct sk_buff *skb, nla_len(tb[IFLA_IFALIAS])); if (err < 0) goto errout; - modified = 1; + status |= DO_SETLINK_MODIFIED; } if (tb[IFLA_BROADCAST]) { @@ -1601,21 +1602,21 @@ static int do_setlink(const struct sk_buff *skb, err = do_set_master(dev, nla_get_u32(tb[IFLA_MASTER])); if (err) goto errout; - modified = 1; + status |= DO_SETLINK_MODIFIED; } if (tb[IFLA_CARRIER]) { err = dev_change_carrier(dev, nla_get_u8(tb[IFLA_CARRIER])); if (err) goto errout; - modified = 1; + status |= DO_SETLINK_MODIFIED; } if (tb[IFLA_TXQLEN]) { unsigned long value = nla_get_u32(tb[IFLA_TXQLEN]); if (dev->tx_queue_len ^ value) - modified = 1; + status |= DO_SETLINK_MODIFIED; dev->tx_queue_len = value; } @@ -1628,7 +1629,7 @@ static int do_setlink(const struct sk_buff *skb, write_lock_bh(&dev_base_lock); if (dev->link_mode ^ value) - modified = 1; + status |= DO_SETLINK_MODIFIED; dev->link_mode = value; write_unlock_bh(&dev_base_lock); } @@ -1644,7 +1645,7 @@ static int do_setlink(const struct sk_buff *skb, err = do_setvfinfo(dev, attr); if (err < 0) goto errout; - modified = 1; + status |= DO_SETLINK_MODIFIED; } } err = 0; @@ -1674,7 +1675,7 @@ static int do_setlink(const struct sk_buff *skb, err = ops->ndo_set_vf_port(dev, vf, port); if (err < 0) goto errout; - modified = 1; + status |= DO_SETLINK_MODIFIED; } } err = 0; @@ -1692,7 +1693,7 @@ static int do_setlink(const struct sk_buff *skb, err = ops->ndo_set_vf_port(dev, PORT_SELF_VF, port); if (err < 0) goto errout; - modified = 1; + status |= DO_SETLINK_MODIFIED; } if (tb[IFLA_AF_SPEC]) { @@ -1709,13 +1710,13 @@ static int do_setlink(const struct sk_buff *skb, if (err < 0) goto errout; - modified = 1; + status |= DO_SETLINK_MODIFIED; } } err = 0; errout: - if (err < 0 && modified) + if (err < 0 && status & DO_SETLINK_MODIFIED) net_warn_ratelimited("A link change request failed with some changes committed already. Interface %s may have been left with an inconsistent configuration, please check.\n", dev->name); @@ -1999,7 +2000,7 @@ replay: } if (dev) { - int modified = 0; + int status = 0; if (nlh->nlmsg_flags & NLM_F_EXCL) return -EEXIST; @@ -2014,7 +2015,7 @@ replay: err = ops->changelink(dev, tb, data); if (err < 0) return err; - modified = 1; + status |= DO_SETLINK_MODIFIED; } if (linkinfo[IFLA_INFO_SLAVE_DATA]) { @@ -2025,10 +2026,10 @@ replay: tb, slave_data); if (err < 0) return err; - modified = 1; + status |= DO_SETLINK_MODIFIED; } - return do_setlink(skb, dev, ifm, tb, ifname, modified); + return do_setlink(skb, dev, ifm, tb, ifname, status); } if (!(nlh->nlmsg_flags & NLM_F_CREATE)) {