linux-kernel - include/net/gro.h:413:22: error: implicit declaration of function 'csum_ipv6

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Message-ID: <CA+G9fYsFwhPGCmsYoBkx+LTRWqaKrzQTLedZugnK2qieyTFoxQ@mail.gmail.com>
Date:   Wed, 17 Nov 2021 18:17:48 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     Netdev <netdev@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        Linux-Next Mailing List <linux-next@...r.kernel.org>
Cc:     Stephen Rothwell <sfr@...b.auug.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, lkft-triage@...ts.linaro.org
Subject: include/net/gro.h:413:22: error: implicit declaration of function 'csum_ipv6_magic

Regression found on riscv and arc gcc-11 build.
Following build warnings / errors reported on linux next 20211117.

metadata:
    git_describe: next-20211117
    git_repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next
    git_short_log: fd96a4057bd0 (\"Add linux-next specific files for 20211117\")
    target_arch: riscv
    toolchain: gcc-11

build error :
--------------
In file included from net/core/dev.c:105:
include/net/gro.h: In function 'ip6_gro_compute_pseudo':
include/net/gro.h:413:22: error: implicit declaration of function
'csum_ipv6_magic'; did you mean 'csum_tcpudp_magic'?
[-Werror=implicit-function-declaration]
  return ~csum_unfold(csum_ipv6_magic(&iph->saddr, &iph->daddr,
                      ^~~~~~~~~~~~~~~
                      csum_tcpudp_magic
cc1: some warnings being treated as errors

Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>

link:
https://gitlab.com/Linaro/lkft/mirrors/next/linux-next/-/jobs/1790398957#L73

build link:
-----------
https://builds.tuxbuild.com/211schgBXkq5zjdda7io29wMONF/build.log

build config:
-------------
https://builds.tuxbuild.com/211schgBXkq5zjdda7io29wMONF/config

# To install tuxmake on your system globally
# sudo pip3 install -U tuxmake
tuxmake --runtime podman --target-arch riscv --toolchain gcc-11
--kconfig defconfig

-- 
Linaro LKFT
https://lkft.linaro.org