| From ae8bc8c4a0ba12c60ca4e09b5afb5a9f62917341 Mon Sep 17 00:00:00 2001 |
| From: Sasha Levin <sashal@kernel.org> |
| Date: Wed, 5 Aug 2020 17:50:53 +0200 |
| Subject: s390/Kconfig: add missing ZCRYPT dependency to VFIO_AP |
| |
| From: Krzysztof Kozlowski <krzk@kernel.org> |
| |
| [ Upstream commit 929a343b858612100cb09443a8aaa20d4a4706d3 ] |
| |
| The VFIO_AP uses ap_driver_register() (and deregister) functions |
| implemented in ap_bus.c (compiled into ap.o). However the ap.o will be |
| built only if CONFIG_ZCRYPT is selected. |
| |
| This was not visible before commit e93a1695d7fb ("iommu: Enable compile |
| testing for some of drivers") because the CONFIG_VFIO_AP depends on |
| CONFIG_S390_AP_IOMMU which depends on the missing CONFIG_ZCRYPT. After |
| adding COMPILE_TEST, it is possible to select a configuration with |
| VFIO_AP and S390_AP_IOMMU but without the ZCRYPT. |
| |
| Add proper dependency to the VFIO_AP to fix build errors: |
| |
| ERROR: modpost: "ap_driver_register" [drivers/s390/crypto/vfio_ap.ko] undefined! |
| ERROR: modpost: "ap_driver_unregister" [drivers/s390/crypto/vfio_ap.ko] undefined! |
| |
| Reported-by: kernel test robot <lkp@intel.com> |
| Fixes: e93a1695d7fb ("iommu: Enable compile testing for some of drivers") |
| Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> |
| Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
| Signed-off-by: Sasha Levin <sashal@kernel.org> |
| --- |
| arch/s390/Kconfig | 1 + |
| 1 file changed, 1 insertion(+) |
| |
| diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig |
| index ae01be202204b..03e491c103e76 100644 |
| --- a/arch/s390/Kconfig |
| +++ b/arch/s390/Kconfig |
| @@ -769,6 +769,7 @@ config VFIO_AP |
| def_tristate n |
| prompt "VFIO support for AP devices" |
| depends on S390_AP_IOMMU && VFIO_MDEV_DEVICE && KVM |
| + depends on ZCRYPT |
| help |
| This driver grants access to Adjunct Processor (AP) devices |
| via the VFIO mediated device interface. |
| -- |
| 2.25.1 |
| |
