[PATCH] ipmi: ssif_bmc: Fix KUnit test link failure when KUNIT=m

[Jian Zhang]

Building with CONFIG_KUNIT=m and CONFIG_SSIF_IPMI_BMC_KUNIT_TEST=y
results in link errors such as:

  undefined reference to `kunit_binary_assert_format'
  undefined reference to `__kunit_do_failed_assertion'

This happens because the test code is built-in while the KUnit core
is built as a module, so the required KUnit symbols are not available
at link time.

Fix this by requiring KUNIT to be built-in when enabling
SSIF_IPMI_BMC_KUNIT_TEST.

Signed-off-by: Jian Zhang <zhangjian.3032@xxxxxxxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202604071448.zUBjPYPu-lkp@xxxxxxxxx/
---
 drivers/char/ipmi/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/ipmi/Kconfig b/drivers/char/ipmi/Kconfig
index 72559f6050eb..669f76000197 100644
--- a/drivers/char/ipmi/Kconfig
+++ b/drivers/char/ipmi/Kconfig
@@ -189,7 +189,7 @@ config SSIF_IPMI_BMC
 
 config SSIF_IPMI_BMC_KUNIT_TEST
 	bool "KUnit tests for SSIF IPMI BMC driver" if !KUNIT_ALL_TESTS
-	depends on KUNIT
+	depends on KUNIT=y
 	depends on SSIF_IPMI_BMC
 	default KUNIT_ALL_TESTS
 	help
-- 
2.20.1