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Diffstat (limited to 'net/ieee802154/6lowpan.c')
-rw-r--r--net/ieee802154/6lowpan.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index 6d42c17..f651da6 100644
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -1047,7 +1047,8 @@ static netdev_tx_t lowpan_xmit(struct sk_buff *skb, struct net_device *dev)
goto error;
}
- if (skb->len <= IEEE802154_MTU) {
+ /* Send directly if less than the MTU minus the 2 checksum bytes. */
+ if (skb->len <= IEEE802154_MTU - IEEE802154_MFR_SIZE) {
err = dev_queue_xmit(skb);
goto out;
}
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