On Thu, Jun 20, 2019 at 11:47:43PM +1000, Stephen Rothwell wrote: > Hi all, > > After merging the netfilter-next tree, today's linux-next build > (arm imx_v4_v5_defconfig and several others) failed like this: > > In file included from net/netfilter/core.c:19:0: > include/linux/netfilter_ipv6.h: In function 'nf_ipv6_cookie_init_sequence': > include/linux/netfilter_ipv6.h:174:2: error: implicit declaration of function '__cookie_v6_init_sequence' [-Werror=implicit-function-declaration] > include/linux/netfilter_ipv6.h: In function 'nf_cookie_v6_check': > include/linux/netfilter_ipv6.h:189:2: error: implicit declaration of function '__cookie_v6_check' [-Werror=implicit-function-declaration] > > Caused by commit > > 3006a5224f15 ("netfilter: synproxy: remove module dependency on IPv6 SYNPROXY") > > This has been happening for a few days, sorry. > > # CONFIG_IPV6 is not set https://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next.git/commit/?id=8527fa6cc68a489f735823e61b31ec6cb266274a