On 2023/11/4 0:45, Jason Gunthorpe wrote:
A perfect driver would only call dev_iommu_priv_set() from its probe
callback. We've made it functionally correct to call it from the of_xlate
by adding a lock around that call.
lockdep assert that iommu_probe_device_lock is held to discourage misuse.
Exclude PPC kernels with CONFIG_FSL_PAMU turned on because FSL_PAMU uses a
global static for its priv and abuses priv for its domain.
Remove the pointless stores of NULL, all these are on paths where the core
code will free dev->iommu after the op returns.
Signed-off-by: Jason Gunthorpe<j...@nvidia.com>
---
drivers/iommu/amd/iommu.c | 2 --
drivers/iommu/apple-dart.c | 1 -
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 1 -
drivers/iommu/arm/arm-smmu/arm-smmu.c | 1 -
drivers/iommu/intel/iommu.c | 2 --
drivers/iommu/iommu.c | 9 +++++++++
drivers/iommu/omap-iommu.c | 1 -
include/linux/iommu.h | 5 +----
8 files changed, 10 insertions(+), 12 deletions(-)
Reviewed-by: Lu Baolu <baolu...@linux.intel.com>
Best regards,
baolu
