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-rw-r--r--sys/net/if_ethersubr.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/net/if_ethersubr.c b/sys/net/if_ethersubr.c
index d2423a4..eada2f9 100644
--- a/sys/net/if_ethersubr.c
+++ b/sys/net/if_ethersubr.c
@@ -163,7 +163,8 @@ ether_output(struct ifnet *ifp, struct mbuf *m,
if (ifp->if_flags & IFF_MONITOR)
senderr(ENETDOWN);
- if ((ifp->if_flags & (IFF_UP|IFF_RUNNING)) != (IFF_UP|IFF_RUNNING))
+ if (!((ifp->if_flags & IFF_UP) &&
+ (ifp->if_drv_flags & IFF_DRV_RUNNING)))
senderr(ENETDOWN);
hlen = ETHER_HDR_LEN;
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