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| author |   David Ahern <dsahern@gmail.com> | 2019-06-21 16:27:16 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-06-26 13:14:59 -0700 |
| commit | c22a133a83ce64949dc35156eaefeda5a1e12bc3 (patch) | |
| tree | a673724f126f4391966caea67adf1fef78a5eeae /net | |
| parent | Merge branch 'skfp-cleanups' (diff) | |
| download | linux-dev-c22a133a83ce64949dc35156eaefeda5a1e12bc3.tar.xz linux-dev-c22a133a83ce64949dc35156eaefeda5a1e12bc3.zip | |
rtnetlink: skip metrics loop for dst_default_metrics
dst_default_metrics has all of the metrics initialized to 0, so nothing
will be added to the skb in rtnetlink_put_metrics. Avoid the loop if
metrics is from dst_default_metrics.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/rtnetlink.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 8ac81630ab5c..1ee6460f8275 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -751,6 +751,10 @@ int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics) struct nlattr *mx; int i, valid = 0; + /* nothing is dumped for dst_default_metrics, so just skip the loop */ + if (metrics == dst_default_metrics.metrics) + return 0; + mx = nla_nest_start_noflag(skb, RTA_METRICS); if (mx == NULL) return -ENOBUFS; |