linux-kernel - [PATCH] Documentation: kunit: Update description of --alltests option

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Message-ID: <20221001064643.667075-1-davidgow@google.com>
Date:   Sat,  1 Oct 2022 14:46:43 +0800
From:   David Gow <davidgow@...gle.com>
To:     Daniel Latypov <dlatypov@...gle.com>,
        Shuah Khan <skhan@...uxfoundation.org>,
        Brendan Higgins <brendanhiggins@...gle.com>,
        Sadiya Kazi <sadiyakazi@...gle.com>,
        Jonathan Corbet <corbet@....net>
Cc:     David Gow <davidgow@...gle.com>, kunit-dev@...glegroups.com,
        linux-kselftest@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] Documentation: kunit: Update description of --alltests option

kunit_tool's --alltests option was changed in commit
980ac3ad0512 ("kunit: tool: rename all_test_uml.config, use it for --alltests")
to use a manually curated list of architecture-indpendent Kconfig
options, rather than attempting to use make allyesconfig on UML, which
was broken.

Update the kunit_tool documentation to reflect the new behaviour of
--alltests.

Signed-off-by: David Gow <davidgow@...gle.com>
---
 Documentation/dev-tools/kunit/run_wrapper.rst | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/Documentation/dev-tools/kunit/run_wrapper.rst b/Documentation/dev-tools/kunit/run_wrapper.rst
index 6b33caf6c8ab..dafe8eb28d30 100644
--- a/Documentation/dev-tools/kunit/run_wrapper.rst
+++ b/Documentation/dev-tools/kunit/run_wrapper.rst
@@ -251,14 +251,15 @@ command line arguments:
   compiling a kernel (using ``build`` or ``run`` commands). For example:
   to enable compiler warnings, we can pass ``--make_options W=1``.
 
-- ``--alltests``: Builds a UML kernel with all config options enabled
-  using ``make allyesconfig``. This allows us to run as many tests as
-  possible.
-
-  .. note:: It is slow and prone to breakage as new options are
-            added or modified. Instead, enable all tests
-            which have satisfied dependencies by adding
-            ``CONFIG_KUNIT_ALL_TESTS=y`` to your ``.kunitconfig``.
+- ``--alltests``: Enable a predefined set of options in order to build
+  as many tests as possible.
+
+  .. note:: The list of enabled options can be found in
+            ``tools/testing/kunit/configs/all_tests.config``.
+
+            If you only want to enable all tests with otherwise satisfied
+            dependencies, instead add ``CONFIG_KUNIT_ALL_TESTS=y`` to your
+            ``.kunitconfig``.
 
 - ``--kunitconfig``: Specifies the path or the directory of the ``.kunitconfig``
   file. For example:
-- 
2.38.0.rc1.362.ged0d419d3c-goog