From: Alexei Starovoitov <alexei.starovoitov@gmail.com>
To: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: "Andrii Nakryiko" <andrii.nakryiko@gmail.com>,
"Andrii Nakryiko" <andriin@fb.com>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
BPF-dev-list <bpf@vger.kernel.org>,
"Daniel Borkmann" <borkmann@iogearbox.net>,
"David Miller" <davem@davemloft.net>,
LKML <linux-kernel@vger.kernel.org>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Anders Roxell" <anders.roxell@linaro.org>,
"Toke Høiland-Jørgensen" <toke@redhat.com>
Subject: Re: Kernel 5.5.4 build fail for BPF-selftests with latest LLVM
Date: Wed, 19 Feb 2020 08:41:27 -0800 [thread overview]
Message-ID: <CAADnVQKQRKtDz0Boy=-cudc4eKGXB-yParGZv6qvYcQR4uMUQQ@mail.gmail.com> (raw)
In-Reply-To: <20200219133012.7cb6ac9e@carbon>
On Wed, Feb 19, 2020 at 4:30 AM Jesper Dangaard Brouer
<brouer@redhat.com> wrote:
>
> I'm willing to help out, such that we can do either version or feature
> detection, to either skip compiling specific test programs or at least
> give users a proper warning of they are using a too "old" LLVM version.
...
> progs/test_core_reloc_bitfields_probed.c:47:13: error: use of unknown builtin '__builtin_preserve_field_info' [-Wimplicit-function-declaration]
> out->ub1 = BPF_CORE_READ_BITFIELD_PROBED(in, ub1);
imo this is proper warning message already.
next prev parent reply other threads:[~2020-02-19 16:41 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-19 12:30 Kernel 5.5.4 build fail for BPF-selftests with latest LLVM Jesper Dangaard Brouer
2020-02-19 13:28 ` Greg Kroah-Hartman
2020-02-19 13:42 ` Jesper Dangaard Brouer
2020-02-19 18:12 ` Greg Kroah-Hartman
2020-02-19 19:40 ` Jesper Dangaard Brouer
2020-02-19 20:20 ` Greg Kroah-Hartman
2020-02-19 16:41 ` Alexei Starovoitov [this message]
2020-02-19 17:03 ` Jesper Dangaard Brouer
2020-02-19 17:38 ` Andrii Nakryiko
2020-02-19 18:28 ` Jesper Dangaard Brouer
2020-02-19 18:38 ` Andrii Nakryiko
2020-02-19 20:06 ` Jesper Dangaard Brouer
2020-02-19 21:59 ` Daniel Díaz
2020-02-19 22:26 ` Andrii Nakryiko
2020-02-20 0:27 ` Alexei Starovoitov
2020-02-20 0:47 ` shuah
2020-02-20 16:37 ` Jesper Dangaard Brouer
2020-02-20 17:02 ` Bird, Tim
2020-02-20 17:26 ` Alexei Starovoitov
2020-02-20 17:41 ` Bird, Tim
2020-02-20 19:18 ` Alexei Starovoitov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CAADnVQKQRKtDz0Boy=-cudc4eKGXB-yParGZv6qvYcQR4uMUQQ@mail.gmail.com' \
--to=alexei.starovoitov@gmail.com \
--cc=anders.roxell@linaro.org \
--cc=andrii.nakryiko@gmail.com \
--cc=andriin@fb.com \
--cc=borkmann@iogearbox.net \
--cc=bpf@vger.kernel.org \
--cc=brouer@redhat.com \
--cc=davem@davemloft.net \
--cc=gregkh@linuxfoundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=toke@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).