[PATCH] kunit: add PRINTK dependency

[Arnd Bergmann]

The vprintk_emit() function is not available when CONFIG_PRINTK
is disabled:

kunit/test.c:22:9: error: implicit declaration of function 'vprintk_emit' [-Werror,-Wimplicit-function-declaration]

I suppose without printk(), there is not much use in kunit
either, so add a Kconfig depenedency here.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
 kunit/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kunit/Kconfig b/kunit/Kconfig
index 8541ef95b65a..e80d8af00454 100644
--- a/kunit/Kconfig
+++ b/kunit/Kconfig
@@ -6,6 +6,7 @@ menu "KUnit support"
 
 config KUNIT
 	bool "Enable support for unit tests (KUnit)"
+	depends on PRINTK
 	help
 	  Enables support for kernel unit tests (KUnit), a lightweight unit
 	  testing and mocking framework for the Linux kernel. These tests are
-- 
2.20.0