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From:   Sven Joachim <svenjoac@gmx.de>
To:     Stephen Rothwell <sfr@canb.auug.org.au>
Cc:     David Miller <davem@davemloft.net>,
        Networking <netdev@vger.kernel.org>,
        Linux Next Mailing List <linux-next@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Brian Vazquez <brianvv@google.com>
Subject: Re: linux-next: build failure after merge of the net-next tree
References: <20200729212721.1ee4eef8@canb.auug.org.au>
Date:   Mon, 17 Aug 2020 09:20:59 +0200
In-Reply-To: <20200729212721.1ee4eef8@canb.auug.org.au> (Stephen Rothwell's
        message of "Wed, 29 Jul 2020 21:27:21 +1000")
Message-ID: <87ft8lwxes.fsf@turtle.gmx.de>
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On 2020-07-29 21:27 +1000, Stephen Rothwell wrote:

> Hi all,
>
> After merging the net-next tree, today's linux-next build (i386 defconfi=
g)
> failed like this:
>
> x86_64-linux-gnu-ld: net/core/fib_rules.o: in function `fib_rules_lookup=
':
> fib_rules.c:(.text+0x5c6): undefined reference to `fib6_rule_match'
> x86_64-linux-gnu-ld: fib_rules.c:(.text+0x5d8): undefined reference to `=
fib6_rule_match'
> x86_64-linux-gnu-ld: fib_rules.c:(.text+0x64d): undefined reference to `=
fib6_rule_action'
> x86_64-linux-gnu-ld: fib_rules.c:(.text+0x662): undefined reference to `=
fib6_rule_action'
> x86_64-linux-gnu-ld: fib_rules.c:(.text+0x67a): undefined reference to `=
fib6_rule_suppress'
> x86_64-linux-gnu-ld: fib_rules.c:(.text+0x68d): undefined reference to `=
fib6_rule_suppress'

FWIW, I saw these errors in 5.9-rc1 today, so the fix in commit
41d707b7332f ("fib: fix fib_rules_ops indirect calls wrappers") was
apparently not sufficient.

,----
| $ grep IPV6 .config
| CONFIG_IPV6=3Dm
| # CONFIG_IPV6_ROUTER_PREF is not set
| # CONFIG_IPV6_OPTIMISTIC_DAD is not set
| # CONFIG_IPV6_MIP6 is not set
| # CONFIG_IPV6_ILA is not set
| # CONFIG_IPV6_VTI is not set
| CONFIG_IPV6_SIT=3Dm
| # CONFIG_IPV6_SIT_6RD is not set
| CONFIG_IPV6_NDISC_NODETYPE=3Dy
| CONFIG_IPV6_TUNNEL=3Dm
| CONFIG_IPV6_MULTIPLE_TABLES=3Dy
| # CONFIG_IPV6_SUBTREES is not set
| # CONFIG_IPV6_MROUTE is not set
| # CONFIG_IPV6_SEG6_LWTUNNEL is not set
| # CONFIG_IPV6_SEG6_HMAC is not set
| # CONFIG_IPV6_RPL_LWTUNNEL is not set
| # CONFIG_NF_SOCKET_IPV6 is not set
| # CONFIG_NF_TPROXY_IPV6 is not set
| # CONFIG_NF_DUP_IPV6 is not set
| # CONFIG_NF_REJECT_IPV6 is not set
| # CONFIG_NF_LOG_IPV6 is not set
| CONFIG_NF_DEFRAG_IPV6=3Dm
`----

> Caused by commit
>
>   b9aaec8f0be5 ("fib: use indirect call wrappers in the most common fib_=
rules_ops")
>
> # CONFIG_IPV6_MULTIPLE_TABLES is not set
>
> I have reverted that commit for today.

Cheers,
       Sven