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Date: Wed, 5 Aug 2020 15:06:27 +0200 From: Stefano Brivio <sbrivio@...hat.com> To: Stephen Rothwell <sfr@...b.auug.org.au>, <heiko.carstens@...ibm.com> Cc: David Miller <davem@...emloft.net>, Networking <netdev@...r.kernel.org>, Linux Next Mailing List <linux-next@...r.kernel.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Cong Wang <xiyou.wangcong@...il.com> Subject: Re: linux-next: build failure after merge of the net-next tree On Wed, 5 Aug 2020 22:31:21 +1000 Stephen Rothwell <sfr@...b.auug.org.au> wrote: > 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") Ouch, sorry for that. I'm getting a few of them by the way: --- net/core/skbuff.o: In function `skb_checksum_setup_ipv6': /home/sbrivio/net-next/net/core/skbuff.c:4980: undefined reference to `csum_ipv6_magic' net/core/netpoll.o: In function `netpoll_send_udp': /home/sbrivio/net-next/net/core/netpoll.c:419: undefined reference to `csum_ipv6_magic' net/netfilter/utils.o: In function `nf_ip6_checksum': /home/sbrivio/net-next/net/netfilter/utils.c:74: undefined reference to `csum_ipv6_magic' /home/sbrivio/net-next/net/netfilter/utils.c:84: undefined reference to `csum_ipv6_magic' net/netfilter/utils.o: In function `nf_ip6_checksum_partial': /home/sbrivio/net-next/net/netfilter/utils.c:112: undefined reference to `csum_ipv6_magic' net/ipv4/ip_tunnel_core.o:/home/sbrivio/net-next/net/ipv4/ip_tunnel_core.c:335: more undefined references to `csum_ipv6_magic' follow --- ...checking how it should be fixed now. Heiko, by the way, do we want to provide a s390 version similar to the existing csum_partial() implementation in arch/s390/include/asm/checksum.h right away? Otherwise, I'll just take care of the ifdeffery. -- Stefano
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