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| author |   Krzysztof Kozlowski <krzk@kernel.org> | 2020-08-05 17:50:53 +0200 |
|---|---|---|
| committer |   Heiko Carstens <hca@linux.ibm.com> | 2020-08-11 18:16:39 +0200 |
| commit | 929a343b858612100cb09443a8aaa20d4a4706d3 (patch) | |
| tree | 49bb7fdc2ef147636dd8e89bc17e8d670bb8c665 /arch/s390/Kconfig | |
| parent | s390/numa: set node distance to LOCAL_DISTANCE (diff) | |
| download | linux-dev-929a343b858612100cb09443a8aaa20d4a4706d3.tar.xz linux-dev-929a343b858612100cb09443a8aaa20d4a4706d3.zip | |
s390/Kconfig: add missing ZCRYPT dependency to VFIO_AP
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>
Diffstat (limited to 'arch/s390/Kconfig')
| -rw-r--r-- | arch/s390/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 8c0b52940165..2a31a5e74e42 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -766,6 +766,7 @@ 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. |