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Message-ID: <20231214-kunit_bus-v3-3-7e9a287d3048@google.com>
Date:   Thu, 14 Dec 2023 16:49:17 +0800
From:   davidgow@...gle.com
To:     Rae Moar <rmoar@...gle.com>,
        Brendan Higgins <brendan.higgins@...ux.dev>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Matti Vaittinen <mazziesaccount@...il.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Shuah Khan <skhan@...uxfoundation.org>,
        Jonathan Corbet <corbet@....net>,
        Kees Cook <keescook@...omium.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Maxime Ripard <mripard@...nel.org>
Cc:     linux-kselftest@...r.kernel.org, kunit-dev@...glegroups.com,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-hardening@...r.kernel.org, linux-sound@...r.kernel.org,
        David Gow <davidgow@...gle.com>
Subject: [PATCH v3 3/5] overflow: Replace fake root_device with kunit_device

Using struct root_device to create fake devices for tests is something
of a hack. The new struct kunit_device is meant for this purpose, so use
it instead.

Reviewed-by: Matti Vaittinen <mazziesaccount@...il.com>
Signed-off-by: David Gow <davidgow@...gle.com>
---
 lib/overflow_kunit.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/lib/overflow_kunit.c b/lib/overflow_kunit.c
index 34db0b3aa502..c527f6b75789 100644
--- a/lib/overflow_kunit.c
+++ b/lib/overflow_kunit.c
@@ -6,6 +6,7 @@
  */
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#include <kunit/device.h>
 #include <kunit/test.h>
 #include <linux/device.h>
 #include <linux/kernel.h>
@@ -618,7 +619,7 @@ static void overflow_allocation_test(struct kunit *test)
 } while (0)
 
 	/* Create dummy device for devm_kmalloc()-family tests. */
-	dev = root_device_register(device_name);
+	dev = kunit_device_register(test, device_name);
 	KUNIT_ASSERT_FALSE_MSG(test, IS_ERR(dev),
 			       "Cannot register test device\n");
 
@@ -634,8 +635,6 @@ static void overflow_allocation_test(struct kunit *test)
 	check_allocation_overflow(devm_kmalloc);
 	check_allocation_overflow(devm_kzalloc);
 
-	device_unregister(dev);
-
 	kunit_info(test, "%d allocation overflow tests finished\n", count);
 #undef check_allocation_overflow
 }

-- 
2.43.0.472.g3155946c3a-goog

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