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| author |   Nicolas Dichtel <nicolas.dichtel@6wind.com> | 2014-09-01 16:07:27 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-09-02 12:57:04 -0700 |
| commit | 1889b0e7efe8373793069bd3deb7702a51e6f2a5 (patch) | |
| tree | e08762b7392e09d5ccba1cbed090de58a6391986 /net/core | |
| parent | rtnl/do_setlink(): set modified when IFLA_TXQLEN is updated (diff) | |
| download | linux-dev-1889b0e7efe8373793069bd3deb7702a51e6f2a5.tar.xz linux-dev-1889b0e7efe8373793069bd3deb7702a51e6f2a5.zip | |
rtnl/do_setlink(): set modified when IFLA_LINKMODE is updated
The only effect of this patch is to print a warning if IFLA_LINKMODE is updated
and a following change fails.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/rtnetlink.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 5bbaf74bf457..2bd9fb15b987 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -1624,8 +1624,12 @@ static int do_setlink(const struct sk_buff *skb, set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE])); if (tb[IFLA_LINKMODE]) { + unsigned char value = nla_get_u8(tb[IFLA_LINKMODE]); + write_lock_bh(&dev_base_lock); - dev->link_mode = nla_get_u8(tb[IFLA_LINKMODE]); + if (dev->link_mode ^ value) + modified = 1; + dev->link_mode = value; write_unlock_bh(&dev_base_lock); } |