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-rw-r--r--include/net/dst.h10
1 files changed, 7 insertions, 3 deletions
diff --git a/include/net/dst.h b/include/net/dst.h
index 621e351..9a78810 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -396,11 +396,15 @@ static inline void dst_confirm(struct dst_entry *dst)
static inline int dst_neigh_output(struct dst_entry *dst, struct neighbour *n,
struct sk_buff *skb)
{
- struct hh_cache *hh;
+ const struct hh_cache *hh;
+
+ if (dst->pending_confirm) {
+ unsigned long now = jiffies;
- if (unlikely(dst->pending_confirm)) {
- n->confirmed = jiffies;
dst->pending_confirm = 0;
+ /* avoid dirtying neighbour */
+ if (n->confirmed != now)
+ n->confirmed = now;
}
hh = &n->hh;
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