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-rw-r--r--net/ipv4/route.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 5c2847247f5..57e01bc6094 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -417,9 +417,13 @@ static int rt_cache_seq_show(struct seq_file *seq, void *v)
else {
struct rtable *r = v;
struct neighbour *n;
- int len;
+ int len, HHUptod;
+ rcu_read_lock();
n = dst_get_neighbour(&r->dst);
+ HHUptod = (n && (n->nud_state & NUD_CONNECTED)) ? 1 : 0;
+ rcu_read_unlock();
+
seq_printf(seq, "%s\t%08X\t%08X\t%8X\t%d\t%u\t%d\t"
"%08X\t%d\t%u\t%u\t%02X\t%d\t%1d\t%08X%n",
r->dst.dev ? r->dst.dev->name : "*",
@@ -433,7 +437,7 @@ static int rt_cache_seq_show(struct seq_file *seq, void *v)
dst_metric(&r->dst, RTAX_RTTVAR)),
r->rt_key_tos,
-1,
- (n && (n->nud_state & NUD_CONNECTED)) ? 1 : 0,
+ HHUptod,
r->rt_spec_dst, &len);
seq_printf(seq, "%*s\n", 127 - len, "");