linux-kernel - Re: [PATCH 2/2] samples: rust: add `SgTable` and `ScatterList` selftests

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Date:   Wed, 31 May 2023 13:30:18 +0800
From:   "Qingsong Chen" <changxian.cqs@...group.com>
To:     Boqun Feng <boqun.feng@...il.com>,
        Greg KH <gregkh@...uxfoundation.org>
Cc:     <linux-kernel@...r.kernel.org>,
        "田洪亮" <tate.thl@...group.com>,
        "Miguel Ojeda" <ojeda@...nel.org>,
        "Alex Gaynor" <alex.gaynor@...il.com>,
        "Wedson Almeida Filho" <wedsonaf@...il.com>,
        "Gary Guo" <gary@...yguo.net>,
        "Björn Roy Baron" <bjorn3_gh@...tonmail.com>,
        "Benno Lossin" <benno.lossin@...ton.me>,
        "Martin Rodriguez Reboredo" <yakoyoku@...il.com>,
        "Asahi Lina" <lina@...hilina.net>,
        "Sven Van Asbroeck" <thesven73@...il.com>,
        "Viktor Garske" <viktor@...ar.de>, "Finn Behrens" <me@...enk.dev>,
        <rust-for-linux@...r.kernel.org>
Subject: Re: [PATCH 2/2] samples: rust: add `SgTable` and `ScatterList`
 selftests


On 5/31/23 2:33 AM, Boqun Feng wrote:
> On Tue, May 30, 2023 at 08:31:26AM +0100, Greg KH wrote:
>> On Tue, May 30, 2023 at 02:48:21PM +0800, Qingsong Chen wrote:
>>> Add a selftest module to provide a temporary place to put "pure tests"
>>> for Rust funtionality and wrappers.
>> Is this for in-kernel tests, or userspace tests?  If userspace, you
>> should follow the proper test reporting protocol the rest of the kernel
>> uses.  If in-kernel, it should follow the format that the in-kernel test
>> currently has to be consistent.  From what I could tell here, you aren't
>> following either, but I might be totally wrong.
>>
> It is for in-kernel tests, and you're right, we should follow the other
> in-kernel test format.
>
> Some explanation about the background: when I was working on this little
> "test framework", the Github CI of Rust-for-Linux (ab)used sample/rust/
> for testing, that's why it was put there.
>
> Now my understanding is that Rust KUnit support is coming, so we should
> use kunit tests if possible.

Maybe I should place those use cases in the doc ( `Examples` section) 
and remove this commit

in next version. Thanks.