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authorDaniel Latypov <dlatypov@google.com>2022-03-28 10:41:42 -0700
committerShuah Khan <skhan@linuxfoundation.org>2022-04-04 16:23:08 -0600
commit61695f8c5d5190db11aece403304f06d22c90597 (patch)
tree6bcb0bc11b75105d35cf856c78fea249d46d45c0 /Documentation/dev-tools/kunit
parentkunit: tool: more descriptive metavars/--help output (diff)
downloadlinux-dev-61695f8c5d5190db11aece403304f06d22c90597.tar.xz
linux-dev-61695f8c5d5190db11aece403304f06d22c90597.zip
kunit: split resource API from test.h into new resource.h
Background: Currently, a reader looking at kunit/test.h will find the file is quite long, and the first meaty comment is a doc comment about struct kunit_resource. Most users will not ever use the KUnit resource API directly. They'll use kunit_kmalloc() and friends, or decide it's simpler to do cleanups via labels (it often can be) instead of figuring out how to use the API. It's also logically separate from everything else in test.h. Removing it from the file doesn't cause any compilation errors (since struct kunit has `struct list_head resources` to store them). This commit: Let's move it into a kunit/resource.h file and give it a separate page in the docs, kunit/api/resource.rst. We include resource.h at the bottom of test.h since * don't want to force existing users to add a new include if they use the API * it accesses `lock` inside `struct kunit` in a inline func * so we can't just forward declare, and the alternatives require uninlining the func, adding hepers to lock/unlock, or other more invasive changes. Now the first big comment in test.h is about kunit_case, which is a lot more relevant to what a new user wants to know. A side effect of this is git blame won't properly track history by default, users need to run $ git blame -L ,1 -C17 include/kunit/resource.h Signed-off-by: Daniel Latypov <dlatypov@google.com> Reviewed-by: David Gow <davidgow@google.com> Reviewed-by: Brendan Higgins <brendanhiggins@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Diffstat (limited to 'Documentation/dev-tools/kunit')
-rw-r--r--Documentation/dev-tools/kunit/api/index.rst5
-rw-r--r--Documentation/dev-tools/kunit/api/resource.rst13
2 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/dev-tools/kunit/api/index.rst b/Documentation/dev-tools/kunit/api/index.rst
index 3006cadcf44a..45ce04823f9f 100644
--- a/Documentation/dev-tools/kunit/api/index.rst
+++ b/Documentation/dev-tools/kunit/api/index.rst
@@ -6,6 +6,7 @@ API Reference
.. toctree::
test
+ resource
This section documents the KUnit kernel testing API. It is divided into the
following sections:
@@ -13,3 +14,7 @@ following sections:
Documentation/dev-tools/kunit/api/test.rst
- documents all of the standard testing API
+
+Documentation/dev-tools/kunit/api/resource.rst
+
+ - documents the KUnit resource API
diff --git a/Documentation/dev-tools/kunit/api/resource.rst b/Documentation/dev-tools/kunit/api/resource.rst
new file mode 100644
index 000000000000..0a94f831259e
--- /dev/null
+++ b/Documentation/dev-tools/kunit/api/resource.rst
@@ -0,0 +1,13 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+============
+Resource API
+============
+
+This file documents the KUnit resource API.
+
+Most users won't need to use this API directly, power users can use it to store
+state on a per-test basis, register custom cleanup actions, and more.
+
+.. kernel-doc:: include/kunit/resource.h
+ :internal: