Re: [RFC net-next 05/15] ipxlat: add IPv6 packet validation path

[Xavier HSINYUAN]

Hi Ralf,

>+static int ipxlat_v6_validate_icmp_csum(const struct sk_buff *skb)
>+{
>+	struct ipv6hdr *iph6;
>+	unsigned int len;
>+	__sum16 csum;
>+
>+	if (skb->ip_summed != CHECKSUM_NONE)
>+		return 0;
>+
>+	iph6 = ipv6_hdr(skb);
>+	len = ipxlat_skb_datagram_len(skb);
>+	csum = csum_ipv6_magic(&iph6->saddr, &iph6->daddr, len, NEXTHDR_ICMP,
>+			       skb_checksum(skb, skb_transport_offset(skb), len,
>+					    0));
>+
>+	return unlikely(csum) ? -EINVAL : 0;
>+}
We should include net/ip6_checksum.h to make x86_64 with KMSAN/KASAN and
other architectures with optional _HAVE_ARCH_IPV6_CSUM happy.

Best regards,
Xavier