kernel_optimize_test/drivers/vfio
Michael Ellerman d88423f784 vfio: Fix build break when SPAPR_TCE_IOMMU=n
Currently the kconfig logic for VFIO_IOMMU_SPAPR_TCE and VFIO_SPAPR_EEH
is broken when SPAPR_TCE_IOMMU=n. Leading to:

    warning: (VFIO) selects VFIO_IOMMU_SPAPR_TCE which has unmet direct dependencies (VFIO && SPAPR_TCE_IOMMU)
    warning: (VFIO) selects VFIO_IOMMU_SPAPR_TCE which has unmet direct dependencies (VFIO && SPAPR_TCE_IOMMU)
    drivers/vfio/vfio_iommu_spapr_tce.c:113:8: error: implicit declaration of function 'mm_iommu_find'

This stems from the fact that VFIO selects VFIO_IOMMU_SPAPR_TCE, and
although it has an if clause, the condition is not correct.

We could fix it by doing select VFIO_IOMMU_SPAPR_TCE if SPAPR_TCE_IOMMU,
but the cleaner fix is to drop the selects and tie VFIO_IOMMU_SPAPR_TCE
to the value of VFIO, and express the dependencies in only once place.

Do the same for VFIO_SPAPR_EEH.

The end result is that the values of VFIO_IOMMU_SPAPR_TCE and
VFIO_SPAPR_EEH follow the value of VFIO, except when SPAPR_TCE_IOMMU=n
and/or EEH=n. Which is exactly what we want to happen.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2017-02-08 13:13:25 -07:00
..
mdev vfio-mdev: Make mdev_device private and abstract interfaces 2016-12-30 08:13:44 -07:00
pci vfio-pci: Handle error from pci_iomap 2017-01-04 08:34:39 -07:00
platform vfio_platform: Updated to use vfio_set_irqs_validate_and_prepare() 2016-11-17 08:33:20 -07:00
Kconfig vfio: Fix build break when SPAPR_TCE_IOMMU=n 2017-02-08 13:13:25 -07:00
Makefile vfio: Mediated device Core driver 2016-11-17 08:24:48 -07:00
vfio_iommu_spapr_tce.c vfio/spapr: Fix missing mutex unlock when creating a window 2017-02-01 09:48:34 -07:00
vfio_iommu_type1.c vfio/type1: Remove pid_namespace.h include 2017-01-13 08:23:33 -07:00
vfio_spapr_eeh.c drivers/vfio: Support EEH error injection 2015-05-12 20:33:35 +10:00
vfio.c vfio: support notifier chain in vfio_group 2016-12-01 10:40:05 -07:00
virqfd.c vfio: Split virqfd into a separate module for vfio bus drivers 2015-03-17 08:33:38 -06:00