[PATCH] iommu/s390: Get rid of S390_CCW_IOMMU

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This doesn't do anything anymore, the only user of the symbol was VFIO_CCW
which already "depends on VFIO" and VFIO selects IOMMU_API.

When this was added VFIO was wrongly doing "depends on IOMMU_API" which
required some mess like this to ensure IOMMU_API was turned on.

Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
---
 arch/s390/Kconfig                 | 1 -
 arch/s390/configs/debug_defconfig | 1 -
 arch/s390/configs/defconfig       | 1 -
 drivers/iommu/Kconfig             | 8 --------
 4 files changed, 11 deletions(-)

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 9809c74e124060..9334500078f978 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -714,7 +714,6 @@ config EADM_SCH
 config VFIO_CCW
 	def_tristate n
 	prompt "Support for VFIO-CCW subchannels"
-	depends on S390_CCW_IOMMU
 	depends on VFIO
 	select VFIO_MDEV
 	help
diff --git a/arch/s390/configs/debug_defconfig b/arch/s390/configs/debug_defconfig
index 4ccf66d29fc24b..77b886e1b867d4 100644
--- a/arch/s390/configs/debug_defconfig
+++ b/arch/s390/configs/debug_defconfig
@@ -591,7 +591,6 @@ CONFIG_VIRTIO_BALLOON=m
 CONFIG_VIRTIO_INPUT=y
 CONFIG_VHOST_NET=m
 CONFIG_VHOST_VSOCK=m
-CONFIG_S390_CCW_IOMMU=y
 CONFIG_S390_AP_IOMMU=y
 CONFIG_EXT4_FS=y
 CONFIG_EXT4_FS_POSIX_ACL=y
diff --git a/arch/s390/configs/defconfig b/arch/s390/configs/defconfig
index 693297a2e89733..36ab9b1956245c 100644
--- a/arch/s390/configs/defconfig
+++ b/arch/s390/configs/defconfig
@@ -580,7 +580,6 @@ CONFIG_VIRTIO_BALLOON=m
 CONFIG_VIRTIO_INPUT=y
 CONFIG_VHOST_NET=m
 CONFIG_VHOST_VSOCK=m
-CONFIG_S390_CCW_IOMMU=y
 CONFIG_S390_AP_IOMMU=y
 CONFIG_EXT4_FS=y
 CONFIG_EXT4_FS_POSIX_ACL=y
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index db98c3f86e8c8b..b1f9d82b4ec9ae 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -417,14 +417,6 @@ config S390_IOMMU
 	help
 	  Support for the IOMMU API for s390 PCI devices.
 
-config S390_CCW_IOMMU
-	bool "S390 CCW IOMMU Support"
-	depends on S390 && CCW || COMPILE_TEST
-	select IOMMU_API
-	help
-	  Enables bits of IOMMU API required by VFIO. The iommu_ops
-	  is not implemented as it is not necessary for VFIO.
-
 config S390_AP_IOMMU
 	bool "S390 AP IOMMU Support"
 	depends on S390 && ZCRYPT || COMPILE_TEST

base-commit: 57d60ea1868f36586c85f6f6692cf4bc49affecd
-- 
2.40.0




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