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-rw-r--r--src/receive.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/receive.c b/src/receive.c
index 81140e9..5417ab9 100644
--- a/src/receive.c
+++ b/src/receive.c
@@ -386,7 +386,9 @@ static void wg_packet_consume_data_done(struct wg_peer *peer,
* again in software.
*/
skb->ip_summed = CHECKSUM_UNNECESSARY;
+#ifndef COMPAT_CANNOT_USE_CSUM_LEVEL
skb->csum_level = ~0; /* All levels */
+#endif
skb->protocol = wg_skb_examine_untrusted_ip_hdr(skb);
if (skb->protocol == htons(ETH_P_IP)) {
len = ntohs(ip_hdr(skb)->tot_len);