From: Yonghong Song <yhs@fb.com>
To: Michal Kubecek <mkubecek@suse.cz>, <bpf@vger.kernel.org>
Cc: <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: Re: build failure (BTFIDS) with CONFIG_NET && !CONFIG_INET
Date: Tue, 29 Sep 2020 21:57:58 -0700 [thread overview]
Message-ID: <28cee29b-9704-87d7-e8b9-04ab76b240b0@fb.com> (raw)
In-Reply-To: <20200929101737.3ufw36bngkmzppqk@lion.mk-sys.cz>
On 9/29/20 3:17 AM, Michal Kubecek wrote:
> Hello,
>
> our builds of s390x for zfcpdump fail since 5.9-rc1 with
>
> BTFIDS vmlinux
> FAILED unresolved symbol tcp_timewait_sock
> make[1]: *** [/home/abuild/rpmbuild/BUILD/kernel-zfcpdump-5.9.rc7/linux-5.9-rc7/Makefile:1176: vmlinux] Error 255
>
> I believe this is caused by commit fce557bcef11 ("bpf: Make btf_sock_ids
> global") and the problem is caused by a specific configuration which has
> CONFIG_NET enabled but CONFIG_INET disabled. IIUC there will be no user
> of struct tcp_timewait_sock but btf_ids will try to generate BTF info
> for it.
Thanks for reporting! Will send a patch to fix the issue soon.
>
> Michal
>
prev parent reply other threads:[~2020-09-30 4:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-29 10:17 Michal Kubecek
2020-09-30 4:57 ` Yonghong Song [this message]
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