AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-24 13:31:02 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

s390/Kconfig: add missing ZCRYPT dependency to VFIO_AP

Browse Source 
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 e93a1695d7 ("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: e93a1695d7 ("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>
This commit is contained in:
Krzysztof Kozlowski 2020-08-05 17:50:53 +02:00 committed by Heiko Carstens
parent 535e4fc623
commit 929a343b85
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/s390/Kconfig
View File

@ -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.