Subject: linux-next: build failure after merge of the net-next tree

From: Stephen Rothwell <[email-masked]>
Date: Wed, 5 Aug 2020 22:31:21 +1000

Hi all,

After merging the net-next tree, today's linux-next build (s390 defconfig)
failed like this:

net/ipv4/ip_tunnel_core.c:335:2: error: implicit declaration of function 'csum_ipv6_magic' [-Werror=implicit-function-declaration]

Caused by commit

  4cb47a8644cc ("tunnels: PMTU discovery support for directly bridged IP packets")

-- 
Cheers,
Stephen Rothwell