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Subject: Re: linux-next failing build due to missing cubictcp_state symbol
From:   Jiri Slaby <jirislaby@kernel.org>
To:     =?UTF-8?Q?Michal_Such=c3=a1nek?= <msuchanek@suse.de>,
        Jiri Olsa <jolsa@redhat.com>
Cc:     Yonghong Song <yhs@fb.com>, linux-kernel@vger.kernel.org,
        Martin KaFai Lau <kafai@fb.com>,
        "David S. Miller" <davem@davemloft.net>,
        Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
        David Ahern <dsahern@kernel.org>,
        Jakub Kicinski <kuba@kernel.org>,
        Alexei Starovoitov <ast@kernel.org>,
        Daniel Borkmann <daniel@iogearbox.net>,
        Andrii Nakryiko <andrii@kernel.org>,
        Song Liu <songliubraving@fb.com>,
        John Fastabend <john.fastabend@gmail.com>,
        KP Singh <kpsingh@kernel.org>, netdev@vger.kernel.org,
        bpf@vger.kernel.org, Jiri Olsa <jolsa@kernel.org>,
        Jesper Dangaard Brouer <brouer@redhat.com>
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Date:   Thu, 6 May 2021 07:54:27 +0200
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On 06. 05. 21, 6:31, Jiri Slaby wrote:
>>>> this one was reported by Jesper and was fixed by upgrading pahole
>>>> that contains the new function generation fixes (v1.19)
>>
>> It needs pahole 1.21 here, 1.19 was not sufficient. Even then it
>> regressed again after 5.12 on arm64:
> 
> Could you try against devel:tools? I've removed the ftrace filter from 
> dwarves there (sr#890247 to factory).

Yes, works for me.

>> ?? LD????? vmlinux
>> ld: warning: -z relro ignored
>> ?? BTFIDS? vmlinux
>> FAILED unresolved symbol cubictcp_state
>> make[1]: *** 
>> [/home/abuild/rpmbuild/BUILD/kernel-vanilla-5.12.0.13670.g5e321ded302d/linux-5.12-13670-g5e321ded302d/Makefile:1196: 
>> vmlinux] Error 255
>> make: *** [../Makefile:215: __sub-make] Error 2


-- 
js