From: Krzysztof Kozlowski Date: Wed, 5 Aug 2020 15:50:53 +0000 (+0200) Subject: s390/Kconfig: add missing ZCRYPT dependency to VFIO_AP X-Git-Tag: v5.7.17~33 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fdeb41184c3283bc7019c44b619de9fe8688e598;p=thirdparty%2Fkernel%2Fstable.git s390/Kconfig: add missing ZCRYPT dependency to VFIO_AP [ 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 Fixes: e93a1695d7fb ("iommu: Enable compile testing for some of drivers") Signed-off-by: Krzysztof Kozlowski Signed-off-by: Heiko Carstens Signed-off-by: Sasha Levin --- 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.