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From: Alexei Starovoitov <alexei.starovoitov@gmail.com>
To: Greg KH <gregkh@linuxfoundation.org>
Cc: Jiri Benc <jbenc@redhat.com>, shuah <shuah@kernel.org>,
	Yauheni Kaliuta <yauheni.kaliuta@redhat.com>,
	Andrii Nakryiko <andrii.nakryiko@gmail.com>,
	bpf <bpf@vger.kernel.org>, Jiri Olsa <jolsa@redhat.com>,
	Andrii Nakryiko <andriin@fb.com>,
	Daniel Borkmann <daniel@iogearbox.net>,
	"open list:KERNEL SELFTEST FRAMEWORK" 
	<linux-kselftest@vger.kernel.org>
Subject: Re: [PATCH] selftests/bpf: split -extras target to -static and -gen
Date: Thu, 28 May 2020 09:14:37 -0700
Message-ID: <20200528161437.x3e2ddxmj6nlhvv7@ast-mbp.dhcp.thefacebook.com> (raw)
In-Reply-To: <20200528105631.GE3115014@kroah.com>

On Thu, May 28, 2020 at 12:56:31PM +0200, Greg KH wrote:
> On Thu, May 28, 2020 at 10:05:57AM +0200, Jiri Benc wrote:
> > On Wed, 27 May 2020 15:23:13 -0700, Alexei Starovoitov wrote:
> > > I prefer to keep selftests/bpf install broken.
> > > This forced marriage between kselftests and selftests/bpf
> > > never worked well. I think it's a time to free them up from each other.
> > 
> > Alexei, it would be great if you could cooperate with other people
> > instead of pushing your own way. The selftests infrastructure was put
> > to the kernel to have one place for testing. Inventing yet another way
> > to add tests does not help anyone. You don't own the kernel. We're
> > community, we should cooperate.
> 
> I agree, we rely on the infrastructure of the kselftests framework so
> that testing systems do not have to create "custom" frameworks to handle
> all of the individual variants that could easily crop up here.
> 
> Let's keep it easy for people to run and use these tests, to not do so
> is to ensure that they are not used, which is the exact opposite goal of
> creating tests.

Greg,

It is easy for people (bpf developers) to run and use the tests.
Every developer runs them before submitting patches.
New tests is a hard requirement for any new features.
Maintainers run them for every push.

What I was and will push back hard is when other people (not bpf developers)
come back with an excuse that some CI system has a hard time running these
tests. It's the problem of weak CI. That CI needs to be fixed. Not the tests.
The example of this is that we already have github/libbpf CI that runs
selftests/bpf just fine. Anyone who wants to do another CI are welcome to copy
paste what already works instead of burdening people (bpf developers) who run
and use existing tests. I frankly have no sympathy to folks who put their own
interest of their CI development in front of bpf community of developers.
The main job of CI is to help developers and maintainers.
Where helping means to not impose new dumb rules on developers because CI
framework is dumb. Fix CI instead.

  reply index

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-22  4:13 [PATCH 0/8] selftests/bpf: installation and out of tree build fixes Yauheni Kaliuta
2020-05-22  4:13 ` [PATCH 1/8] selftests/bpf: remove test_align from Makefile Yauheni Kaliuta
2020-05-26 22:13   ` Andrii Nakryiko
2020-05-22  4:13 ` [PATCH 2/8] selftests/bpf: build bench.o for any $(OUTPUT) Yauheni Kaliuta
2020-05-26 22:13   ` Andrii Nakryiko
2020-05-27  4:54     ` Yauheni Kaliuta
2020-05-22  4:13 ` [PATCH 3/8] selftests/bpf: install btf .c files Yauheni Kaliuta
2020-05-22  4:13 ` [PATCH 4/8] selftests/bpf: fix object files installation Yauheni Kaliuta
2020-05-26 22:30   ` Andrii Nakryiko
2020-05-27  5:17     ` Yauheni Kaliuta
2020-05-28 18:39       ` Andrii Nakryiko
2020-05-28 18:46         ` Yauheni Kaliuta
2020-05-22  4:13 ` [PATCH 5/8] selftests/bpf: add output dir to include list Yauheni Kaliuta
2020-05-26 22:13   ` Andrii Nakryiko
2020-05-22  4:13 ` [PATCH 6/8] selftests/bpf: fix urandom_read installation Yauheni Kaliuta
2020-05-26 22:13   ` Andrii Nakryiko
2020-05-22  4:13 ` [PATCH 7/8] selftests/bpf: fix test.h placing for out of tree build Yauheni Kaliuta
2020-05-26 22:26   ` Andrii Nakryiko
2020-05-27  5:06     ` Yauheni Kaliuta
2020-05-22  4:13 ` [PATCH 8/8] selftests/bpf: factor out MKDIR rule Yauheni Kaliuta
2020-05-26 22:29   ` Andrii Nakryiko
2020-05-27  5:07     ` Yauheni Kaliuta
2020-05-22  6:40 ` [PATCH 0/8] selftests/bpf: installation and out of tree build fixes Yauheni Kaliuta
2020-05-22  8:19   ` [PATCH] selftests/bpf: split -extras target to -static and -gen Yauheni Kaliuta
2020-05-27  0:19     ` Andrii Nakryiko
2020-05-27  5:21       ` Yauheni Kaliuta
2020-05-27  5:37         ` Alexei Starovoitov
2020-05-27  7:19           ` Yauheni Kaliuta
2020-05-27 16:48             ` Alexei Starovoitov
2020-05-27 17:02               ` Yauheni Kaliuta
2020-05-27 17:05                 ` Alexei Starovoitov
2020-05-27 22:01                   ` shuah
2020-05-27 22:23                     ` Alexei Starovoitov
2020-05-28  8:05                       ` Jiri Benc
2020-05-28 10:56                         ` Greg KH
2020-05-28 16:14                           ` Alexei Starovoitov [this message]
2020-05-28 17:07                             ` Shuah Khan
2020-05-28 18:15                               ` Alexei Starovoitov
2020-05-28 18:29                                 ` Yauheni Kaliuta
2020-05-28 18:34                                   ` Alexei Starovoitov
2020-05-28 19:05                                     ` Shuah Khan
2020-05-28 18:59                                 ` Shuah Khan
2020-05-28 19:18                                   ` Alexei Starovoitov
2020-05-28 20:09                                     ` Shuah Khan
2020-05-28 22:47                                       ` Shuah Khan
2020-05-28 17:10                             ` Yauheni Kaliuta
2020-05-28 18:17                               ` Alexei Starovoitov
2020-05-28 19:09                               ` Shuah Khan
2020-05-28 19:20                                 ` Yauheni Kaliuta
2020-05-28 19:34                                   ` Shuah Khan
2020-05-26 21:48   ` [PATCH 0/8] selftests/bpf: installation and out of tree build fixes Daniel Borkmann
2020-05-27  4:45     ` Yauheni Kaliuta
2020-05-26 22:32   ` Andrii Nakryiko
2020-05-27  4:52     ` Yauheni Kaliuta
2020-05-27  5:04       ` Andrii Nakryiko
2020-05-27  7:25         ` Yauheni Kaliuta
2020-05-27  8:05           ` Yauheni Kaliuta

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