Bug 205217

Summary:	Consider putting KUnit in __init sections
Product:	Tools	Reporter:	Brendan Higgins (brendanhiggins)
Component:	KUnit	Assignee:	Tools/KUnit virtual default assignee (tools_kunit)
Status:	RESOLVED WILL_NOT_FIX
Severity:	enhancement	CC:	brendanhiggins, davidgow
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	kselftest/test (5.4)	Subsystem:
Regression:	No	Bisected commit-id:

Description Brendan Higgins 2019-10-16 20:44:53 UTC

(Paraphrased from Andrew Morton) Given that everything runs at late_initcall time, we may want to put all the KUnit code (core and tests) in __init, __initdata etc so all the code and data doesn't hang around forever?

It is worth pointing out that we are considering allowing at least some tests to be made into loadable modules that will be run after the kernel is booted.

Comment 1 Brendan Higgins 2019-10-16 20:47:43 UTC

Note: The original discussion can be found here: https://lore.kernel.org/linux-kselftest/20191011140536.03c3e25500b31ddcfa0f542b@linux-foundation.org/

Comment 2 Brendan Higgins 2020-02-12 18:39:09 UTC

KUnit no longer runs strictly in late_init: It now has module support, and there is ongoing work to make it run at arbitrary points in time via debugfs.