Update to v5.9 kernel headers.
Kernel headers coming from:
Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.9
Test: Boots cuttlefish 64bit, passes 32 bit and 64 bit bionic unit tests.
Change-Id: Ib5503355b238ea75595538e63eb000c867d06ef7
diff --git a/libc/kernel/uapi/linux/icmpv6.h b/libc/kernel/uapi/linux/icmpv6.h
index 798a945..38c30cf 100644
--- a/libc/kernel/uapi/linux/icmpv6.h
+++ b/libc/kernel/uapi/linux/icmpv6.h
@@ -59,6 +59,7 @@
#define icmp6_mtu icmp6_dataun.un_data32[0]
#define icmp6_unused icmp6_dataun.un_data32[0]
#define icmp6_maxdelay icmp6_dataun.un_data16[0]
+#define icmp6_datagram_len icmp6_dataun.un_data8[0]
#define icmp6_router icmp6_dataun.u_nd_advt.router
#define icmp6_solicited icmp6_dataun.u_nd_advt.solicited
#define icmp6_override icmp6_dataun.u_nd_advt.override