Message ID | 1409580449-4562-3-git-send-email-nicolas.dichtel@6wind.com |
---|---|
State | Accepted, archived |
Delegated to: | David Miller |
Headers | show |
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); }
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> --- net/core/rtnetlink.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)