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-rw-r--r--include/linux/skbuff.h7
1 files changed, 4 insertions, 3 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 1470b74fb6d2..3013355b63f5 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -822,9 +822,9 @@ typedef unsigned char *sk_buff_data_t;
* @decrypted: Decrypted SKB
* @slow_gro: state present at GRO time, slower prepare step required
* @mono_delivery_time: When set, skb->tstamp has the
- * delivery_time in mono clock base (i.e. EDT). Otherwise, the
- * skb->tstamp has the (rcv) timestamp at ingress and
- * delivery_time at egress.
+ * delivery_time in mono clock base (i.e., EDT) or a clock base chosen
+ * by SO_TXTIME. If zero, skb->tstamp has the (rcv) timestamp at
+ * ingress.
* @napi_id: id of the NAPI struct this skb came from
* @sender_cpu: (aka @napi_id) source CPU in XPS
* @alloc_cpu: CPU which did the skb allocation.
@@ -3036,6 +3036,7 @@ static inline int skb_transport_offset(const struct sk_buff *skb)
static inline u32 skb_network_header_len(const struct sk_buff *skb)
{
+ DEBUG_NET_WARN_ON_ONCE(!skb_transport_header_was_set(skb));
return skb->transport_header - skb->network_header;
}