linux-kernel - [RFC PATCH 7/7] platform/chrome: kunit: cros_ec

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Message-ID: <20250520082435.2255639-8-tzungbi@kernel.org>
Date: Tue, 20 May 2025 08:24:34 +0000
From: Tzung-Bi Shih <tzungbi@...nel.org>
To: bleung@...omium.org,
	brendan.higgins@...ux.dev,
	davidgow@...gle.com
Cc: tzungbi@...nel.org,
	rmoar@...gle.com,
	rostedt@...dmis.org,
	mhiramat@...nel.org,
	naveen@...nel.org,
	anil.s.keshavamurthy@...el.com,
	davem@...emloft.net,
	chrome-platform@...ts.linux.dev,
	linux-kselftest@...r.kernel.org,
	kunit-dev@...glegroups.com,
	linux-trace-kernel@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [RFC PATCH 7/7] platform/chrome: kunit: cros_ec_spi: Use kprobes stub instead

For running the tests:

$ ./tools/testing/kunit/kunit.py run \
	--arch=x86_64 \
	--kconfig_add CONFIG_KPROBES=y \
	--kconfig_add CONFIG_KUNIT_KPROBES_STUBS=y \
	--kconfig_add CONFIG_CHROME_PLATFORMS=y \
	--kconfig_add CONFIG_CROS_EC=y \
	--kconfig_add CONFIG_SPI=y \
	--kconfig_add CONFIG_CROS_EC_SPI=y \
	--kconfig_add CONFIG_CROS_KUNIT_EC_SPI_TEST=y \
	cros_ec_spi*

Signed-off-by: Tzung-Bi Shih <tzungbi@...nel.org>
---
 drivers/platform/chrome/Kconfig            |  2 +-
 drivers/platform/chrome/cros_ec_spi_test.c | 10 +++++-----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/platform/chrome/Kconfig b/drivers/platform/chrome/Kconfig
index aa13e871a31f..aacce3323384 100644
--- a/drivers/platform/chrome/Kconfig
+++ b/drivers/platform/chrome/Kconfig
@@ -339,7 +339,7 @@ config CROS_KUNIT_EC_SPI_TEST
 	tristate "Kunit tests for ChromeOS EC over SPI" if !KUNIT_ALL_TESTS
 	depends on KUNIT && CROS_EC
 	default KUNIT_ALL_TESTS
-	depends on KUNIT_FTRACE_STUBS
+	depends on KUNIT_KPROBES_STUBS
 	depends on CROS_EC_SPI
 	help
 	  Kunit tests for ChromeOS EC over SPI.
diff --git a/drivers/platform/chrome/cros_ec_spi_test.c b/drivers/platform/chrome/cros_ec_spi_test.c
index 52dea75ecabf..74fcbd37b87b 100644
--- a/drivers/platform/chrome/cros_ec_spi_test.c
+++ b/drivers/platform/chrome/cros_ec_spi_test.c
@@ -3,7 +3,7 @@
  * Kunit tests for ChromeOS Embedded Controller SPI interface.
  */
 #include <kunit/test.h>
-#include <kunit/ftrace_stub.h>
+#include <kunit/kprobes_stub.h>
 
 #include <linux/platform_data/cros_ec_commands.h>
 #include <linux/platform_data/cros_ec_proto.h>
@@ -121,8 +121,8 @@ static int cros_ec_spi_test_init(struct kunit *test)
 	int ret;
 	struct device_driver *drv;
 
-	kunit_activate_ftrace_stub(test, cros_ec_register, fake_cros_ec_register);
-	kunit_activate_ftrace_stub(test, cros_ec_unregister, fake_cros_ec_unregister);
+	kunit_activate_kprobes_stub(test, cros_ec_register, fake_cros_ec_register);
+	kunit_activate_kprobes_stub(test, cros_ec_unregister, fake_cros_ec_unregister);
 
 	priv = kunit_kzalloc(test, sizeof(*priv), GFP_KERNEL);
 	KUNIT_ASSERT_NOT_NULL(test, priv);
@@ -181,8 +181,8 @@ static void cros_ec_spi_test_exit(struct kunit *test)
 	device_del(&priv->dev);
 	class_destroy(priv->fake_class);
 
-	kunit_deactivate_ftrace_stub(test, cros_ec_register);
-	kunit_deactivate_ftrace_stub(test, cros_ec_unregister);
+	kunit_deactivate_kprobes_stub(test, cros_ec_register);
+	kunit_deactivate_kprobes_stub(test, cros_ec_unregister);
 }
 
 static int cros_ec_spi_test_cmd_xfer_init(struct kunit *test)
-- 
2.49.0.1101.gccaa498523-goog