From: Masahiro Yamada masahiroy@kernel.org

commit ea29b20a828511de3348334e529a3d046a180416 upstream.

I read the commit log of the following two:

- bc083a64b6c0 ("init/Kconfig: make COMPILE_TEST depend on !UML") - 334ef6ed06fa ("init/Kconfig: make COMPILE_TEST depend on !S390")

Both are talking about HAS_IOMEM dependency missing in many drivers.

So, 'depends on HAS_IOMEM' seems the direct, sensible solution to me.

This does not change the behavior of UML. UML still cannot enable COMPILE_TEST because it does not provide HAS_IOMEM.

The current dependency for S390 is too strong. Under the condition of CONFIG_PCI=y, S390 provides HAS_IOMEM, hence can enable COMPILE_TEST.

I also removed the meaningless 'default n'.

Link: https://lkml.kernel.org/r/20210224140809.1067582-1-masahiroy@kernel.org Signed-off-by: Masahiro Yamada masahiroy@kernel.org Cc: Heiko Carstens hca@linux.ibm.com Cc: Guenter Roeck linux@roeck-us.net Cc: Arnd Bergmann arnd@kernel.org Cc: Kees Cook keescook@chromium.org Cc: Daniel Borkmann daniel@iogearbox.net Cc: Johannes Weiner hannes@cmpxchg.org Cc: KP Singh kpsingh@google.com Cc: Nathan Chancellor nathan@kernel.org Cc: Nick Terrell terrelln@fb.com Cc: Quentin Perret qperret@google.com Cc: Valentin Schneider valentin.schneider@arm.com Cc: "Enrico Weigelt, metux IT consult" lkml@metux.net Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Cc: Guenter Roeck linux@roeck-us.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- init/Kconfig | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/init/Kconfig b/init/Kconfig index 5682a3300ff2e..43791a6d40da5 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -66,8 +66,7 @@ config INIT_ENV_ARG_LIMIT

config COMPILE_TEST bool "Compile also drivers which will not load" - depends on !UML && !S390 - default n + depends on HAS_IOMEM help Some drivers can be compiled on a different platform than they are intended to be run on. Despite they cannot be loaded there (or even