linux-kernel - Re: [RFC PATCH 2/2] kselftest: Add Devicetree unprobed devices test

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Message-ID: <c998b1ce-5515-4773-92e2-a88a0c7bd4ff@sirena.org.uk>
Date:   Thu, 17 Aug 2023 18:39:19 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Nícolas F. R. A. Prado 
        <nfraprado@...labora.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Shuah Khan <shuah@...nel.org>, cocci@...ia.fr,
        Nicolas Palix <nicolas.palix@...g.fr>,
        kernelci@...ts.linux.dev, Julia Lawall <Julia.Lawall@...ia.fr>,
        Bjorn Andersson <andersson@...nel.org>, kernel@...labora.com,
        Guenter Roeck <groeck@...omium.org>,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: Re: [RFC PATCH 2/2] kselftest: Add Devicetree unprobed devices test

On Thu, Aug 17, 2023 at 12:17:38PM -0400, Nícolas F. R. A. Prado wrote:
> On Thu, Aug 17, 2023 at 01:26:05PM +0100, Mark Brown wrote:

> > I'm not clear why KTAP would require C?

> When going through the documentation there was only mention of the C headers for
> the kselftest framework which outputs using the KTAP format, so I thought that
> was the only acceptable option.

> But in the meantime while looking through the other tests I saw you've recently
> added ktap output to ftrace/ftracetest. The newly added test in
> net/mptcp/mptcp_lib.sh also has its own helpers for outputting in KTAP. There
> are also a couple other cases of this in python.

> So I can definitely do the same for this test.

Right, KTAP is a format specification for what appears on stdout - how
that output is generated is immaterial.  It's just that most tests are
written in C so that's where the helpers are.

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