zap_vma_ptes() is only available when CONFIG_MMU is set/enabled.
Without CONFIG_MMU, vfio_pci.o has build errors, so make
VFIO_PCI depend on MMU.
riscv64-linux-ld: drivers/vfio/pci/vfio_pci.o: in function `vfio_pci_mmap_open':
vfio_pci.c:(.text+0x1ec): undefined reference to `zap_vma_ptes'
riscv64-linux-ld: drivers/vfio/pci/vfio_pci.o: in function `.L0 ':
vfio_pci.c:(.text+0x165c): undefined reference to `zap_vma_ptes'
Fixes: 89e1f7d4c66d ("vfio: Add PCI device driver")
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Cc: Alex Williamson <alex.williamson@xxxxxxxxxx>
Cc: Cornelia Huck <cohuck@xxxxxxxxxx>
Cc: kvm@xxxxxxxxxxxxxxx
Cc: Jason Gunthorpe <jgg@xxxxxxxxxx>
Cc: Eric Auger <eric.auger@xxxxxxxxxx>
---
drivers/vfio/pci/Kconfig | 1 +
1 file changed, 1 insertion(+)
--- linux-next-20210514.orig/drivers/vfio/pci/Kconfig
+++ linux-next-20210514/drivers/vfio/pci/Kconfig
@@ -2,6 +2,7 @@
config VFIO_PCI
tristate "VFIO support for PCI devices"
depends on VFIO && PCI && EVENTFD
+ depends on MMU
select VFIO_VIRQFD
select IRQ_BYPASS_MANAGER
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