--- zzzz-none-000/linux-4.4.271/include/net/inet_ecn.h	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/include/net/inet_ecn.h	2023-04-19 10:22:30.000000000 +0000
@@ -127,7 +127,8 @@
 
 	from = *(__be32 *)iph;
 	to = from | htonl(INET_ECN_CE << 20);
-	*(__be32 *)iph = to;
+	net_hdr_word(iph) |= htonl(INET_ECN_CE << 20);
+
 	if (skb->ip_summed == CHECKSUM_COMPLETE)
 		skb->csum = csum_add(csum_sub(skb->csum, (__force __wsum)from),
 				     (__force __wsum)to);
@@ -136,7 +137,7 @@
 
 static inline void IP6_ECN_clear(struct ipv6hdr *iph)
 {
-	*(__be32*)iph &= ~htonl(INET_ECN_MASK << 20);
+	net_hdr_word(iph) &= ~htonl(INET_ECN_MASK << 20);
 }
 
 static inline void ipv6_copy_dscp(unsigned int dscp, struct ipv6hdr *inner)