linux-kernel - [PATCH 00/12] clk: Unit test clk unregistration paths

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Message-ID: <20240815005520.1192374-1-sboyd@kernel.org>
Date: Wed, 14 Aug 2024 17:55:06 -0700
From: Stephen Boyd <sboyd@...nel.org>
To: Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>
Cc: linux-kernel@...r.kernel.org,
	linux-clk@...r.kernel.org,
	patches@...ts.linux.dev,
	Brendan Higgins <brendan.higgins@...ux.dev>,
	David Gow <davidgow@...gle.com>,
	Rae Moar <rmoar@...gle.com>
Subject: [PATCH 00/12] clk: Unit test clk unregistration paths

The clk_hw_unregister() path is rarely used and almost entirely
untested. Case in point, the first patch in this series that fixes a bug
due to unregistering a clk_hw and calling clk_put(). Add unit tests for
this code and test the consumer APIs to make sure the behavior stays
consistent.

The last patch is a WIP because I haven't gotten around to fixing all
the problems.

Cc: Brendan Higgins <brendan.higgins@...ux.dev>
Cc: David Gow <davidgow@...gle.com>
Cc: Rae Moar <rmoar@...gle.com>

Nuno Sá (1):
  clk: Fix clk not being unlinked from consumers list

Stephen Boyd (11):
  clk: test: Introduce clk_hw_unregister_kunit()
  clk: test: Introduce clk_put_kunit()
  clk: Add tests for unregistering clk_hw and using consumer APIs
  clk: Fail phase APIs after clk_hw is unregistered
  clk: Test clk_get_phase() behavior after clk_hw is unregistered
  clk: Fail duty cycle APIs after clk_hw is unregistered
  clk: Test clk_set_duty_cycle() behavior after clk_hw is unregistered
  clk: Prevent unregistered clk_hw from being reinserted into clk tree
  clk: Test clk_set_parent() behavior after clk_hw is unregistered
  clk: Test parent/clk flags combos while unregistering a clk_hw
  WIP: clk: Test behavior of children clks after a parent is
    unregistered

 drivers/clk/clk.c               |  26 +-
 drivers/clk/clk_kunit_helpers.c |  46 ++
 drivers/clk/clk_test.c          | 720 ++++++++++++++++++++++++++++++++
 include/kunit/clk.h             |   2 +
 4 files changed, 791 insertions(+), 3 deletions(-)


base-commit: 274aff8711b2e77c27bbda0ddc24caa39f154bfa
-- 
https://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git/
https://git.kernel.org/pub/scm/linux/kernel/git/sboyd/spmi.git