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https://github.com/torvalds/linux
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e70e9ecd7c
Make pointer to bus_type a pointer to const for code safety. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20240216144027.185959-1-krzysztof.kozlowski@linaro.org Signed-off-by: Joerg Roedel <jroedel@suse.de>
32 lines
990 B
C
32 lines
990 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/* Copyright (c) 2023, NVIDIA CORPORATION & AFFILIATES.
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*/
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#ifndef __LINUX_IOMMU_PRIV_H
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#define __LINUX_IOMMU_PRIV_H
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#include <linux/iommu.h>
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static inline const struct iommu_ops *dev_iommu_ops(struct device *dev)
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{
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/*
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* Assume that valid ops must be installed if iommu_probe_device()
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* has succeeded. The device ops are essentially for internal use
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* within the IOMMU subsystem itself, so we should be able to trust
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* ourselves not to misuse the helper.
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*/
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return dev->iommu->iommu_dev->ops;
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}
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int iommu_group_replace_domain(struct iommu_group *group,
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struct iommu_domain *new_domain);
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int iommu_device_register_bus(struct iommu_device *iommu,
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const struct iommu_ops *ops,
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const struct bus_type *bus,
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struct notifier_block *nb);
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void iommu_device_unregister_bus(struct iommu_device *iommu,
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const struct bus_type *bus,
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struct notifier_block *nb);
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#endif /* __LINUX_IOMMU_PRIV_H */
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