On s390 systems (aka mainframes), it has classic channel devices for
networking and permanent storage that are currently even more common
than PCI devices. Hence it could have a fully functional s390 kernel
with CONFIG_PCI=n, then the relevant iomem mapping functions
[including ioremap(), devm_ioremap(), etc.] are not available.
Here let OPEN_DICE depend on HAS_IOMEM so that it won't be built
to cause below compiling error if PCI is unset:
------
ERROR: modpost: "devm_memremap" [drivers/misc/open-dice.ko] undefined!
ERROR: modpost: "devm_memunmap" [drivers/misc/open-dice.ko] undefined!
------
Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Signed-off-by: Baoquan He <[email protected]>
Cc: Derek Kiernan <[email protected]>
Cc: Dragan Cvetic <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
---
drivers/misc/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 75e427f124b2..cadd4a820c03 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -496,6 +496,7 @@ config HISI_HIKEY_USB
config OPEN_DICE
tristate "Open Profile for DICE driver"
depends on OF_RESERVED_MEM
+ depends on HAS_IOMEM
help
This driver exposes a DICE reserved memory region to userspace via
a character device. The memory region contains Compound Device
--
2.34.1