linux_dsm_epyc7002/drivers/iommu
Will Deacon ab362fffa0 iommu/arm-smmu: Restore naming of driver parameter prefix
Extending the Arm SMMU driver to allow for modular builds changed
KBUILD_MODNAME to be "arm_smmu_mod" so that a single module could be
built from the multiple existing object files without the need to rename
any source files.

This inadvertently changed the name of the driver parameters, which may
lead to runtime issues if bootloaders are relying on the old names for
correctness (e.g. "arm-smmu.disable_bypass=0").

Although MODULE_PARAM_PREFIX can be overridden to restore the old naming
for builtin parameters, only the new name is matched by modprobe and so
loading the driver as a module would cause parameters specified on the
kernel command line to be ignored. Instead, rename "arm_smmu_mod" to
"arm_smmu". Whilst it's a bit of a bodge, this allows us to create a
single module without renaming any files and makes use of the fact that
underscores and hyphens can be used interchangeably in parameter names.

Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Reported-by: Li Yang <leoyang.li@nxp.com>
Fixes: cd221bd24f ("iommu/arm-smmu: Allow building as a module")
Signed-off-by: Will Deacon <will@kernel.org>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2020-02-19 12:03:21 +01:00
..
amd_iommu_debugfs.c
amd_iommu_init.c iommu/amd: Disable IOMMU on Stoney Ridge systems 2020-02-19 11:08:24 +01:00
amd_iommu_proto.h
amd_iommu_quirks.c
amd_iommu_types.h iommu/amd: Remove unused struct member 2020-01-17 11:05:56 +01:00
amd_iommu_v2.c
amd_iommu.c IOMMU Updates for Linux v5.6 2020-02-05 17:49:54 +00:00
amd_iommu.h
arm-smmu-impl.c iommu/arm-smmu: Rename public #defines under ARM_SMMU_ namespace 2020-01-10 15:52:25 +00:00
arm-smmu-qcom.c
arm-smmu-v3.c Merge branches 'iommu/fixes', 'arm/smmu', 'x86/amd', 'x86/vt-d' and 'core' into next 2020-01-24 15:39:39 +01:00
arm-smmu.c Merge branches 'iommu/fixes', 'arm/smmu', 'x86/amd', 'x86/vt-d' and 'core' into next 2020-01-24 15:39:39 +01:00
arm-smmu.h iommu/io-pgtable-arm: Rationalise VTCR handling 2020-01-10 15:52:25 +00:00
dma-iommu.c iommu/dma: fix variable 'cookie' set but not used 2020-01-07 17:08:58 +01:00
dmar.c iommu/vt-d: Remove unnecessary WARN_ON_ONCE() 2020-01-24 15:36:27 +01:00
exynos-iommu.c
fsl_pamu_domain.c
fsl_pamu_domain.h
fsl_pamu.c
fsl_pamu.h
hyperv-iommu.c
intel_irq_remapping.c
intel-iommu-debugfs.c iommu/vt-d: debugfs: Add support to show page table internals 2020-01-07 14:05:58 +01:00
intel-iommu.c iommu/vt-d: Simplify check in identity_mapping() 2020-02-18 17:21:51 +01:00
intel-pasid.c iommu/vt-d: Add PASID_FLAG_FL5LP for first-level pasid setup 2020-01-07 14:05:58 +01:00
intel-pasid.h iommu/vt-d: Add PASID_FLAG_FL5LP for first-level pasid setup 2020-01-07 14:05:58 +01:00
intel-svm.c iommu/vt-d: Add PASID_FLAG_FL5LP for first-level pasid setup 2020-01-07 14:05:58 +01:00
intel-trace.c
io-pgtable-arm-v7s.c iommu/io-pgtable-arm: Rationalise TCR handling 2020-01-10 15:52:24 +00:00
io-pgtable-arm.c iommu/io-pgtable-arm: Prepare for TTBR1 usage 2020-01-10 15:52:25 +00:00
io-pgtable.c iommu/io-pgtable-arm: Rationalise TCR handling 2020-01-10 15:52:24 +00:00
ioasid.c
iommu-debugfs.c
iommu-sysfs.c drivers/iommu: Export core IOMMU API symbols to permit modular drivers 2019-12-23 14:06:05 +01:00
iommu-traces.c
iommu.c Merge branches 'iommu/fixes', 'arm/smmu', 'x86/amd', 'x86/vt-d' and 'core' into next 2020-01-24 15:39:39 +01:00
iova.c iommu/iova: Silence warnings under memory pressure 2019-12-23 14:07:03 +01:00
ipmmu-vmsa.c iommu/io-pgtable-arm: Rationalise TTBRn handling 2020-01-10 15:39:23 +00:00
irq_remapping.c
irq_remapping.h
Kconfig Merge branches 'iommu/fixes', 'arm/smmu', 'x86/amd', 'x86/vt-d' and 'core' into next 2020-01-24 15:39:39 +01:00
Makefile iommu/arm-smmu: Restore naming of driver parameter prefix 2020-02-19 12:03:21 +01:00
msm_iommu_hw-8xxx.h
msm_iommu.c iommu/io-pgtable-arm: Rationalise TTBRn handling 2020-01-10 15:39:23 +00:00
msm_iommu.h
mtk_iommu_v1.c
mtk_iommu.c iommu/io-pgtable-arm: Rationalise TTBRn handling 2020-01-10 15:39:23 +00:00
mtk_iommu.h
of_iommu.c iommu/arm-smmu-v3: Parse PASID devicetree property of platform devices 2020-01-15 16:00:57 +00:00
omap-iommu-debug.c
omap-iommu.c
omap-iommu.h
omap-iopgtable.h
qcom_iommu.c iommu/qcom: Fix bogus detach logic 2020-02-19 11:55:48 +01:00
rockchip-iommu.c
s390-iommu.c
tegra-gart.c
tegra-smmu.c
virtio-iommu.c iommu: virtio: Use generic_iommu_put_resv_regions() 2019-12-23 14:07:03 +01:00