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drivers/iommu: Initialise module 'owner' field in iommu_device_set_ops()

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Requiring each IOMMU driver to initialise the 'owner' field of their
'struct iommu_ops' is error-prone and easily forgotten. Follow the
example set by PCI and USB by assigning THIS_MODULE automatically when
registering the ops structure with IOMMU core.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Will Deacon 2020-01-09 14:08:41 +00:00
parent 1ea27ee2f7
commit fc10cca69e
3 changed files with 9 additions and 4 deletions
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11
include/linux/iommu.h
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@ -388,12 +388,19 @@ void iommu_device_sysfs_remove(struct iommu_device *iommu);
int iommu_device_link(struct iommu_device *iommu, struct device *link);
void iommu_device_unlink(struct iommu_device *iommu, struct device *link);
static inline void iommu_device_set_ops(struct iommu_device *iommu,
const struct iommu_ops *ops)
static inline void __iommu_device_set_ops(struct iommu_device *iommu,
const struct iommu_ops *ops)
{
iommu->ops = ops;
}
#define iommu_device_set_ops(iommu, ops) \
do { \
struct iommu_ops *__ops = (struct iommu_ops *)(ops); \
__ops->owner = THIS_MODULE; \
__iommu_device_set_ops(iommu, __ops); \
} while (0)
static inline void iommu_device_set_fwnode(struct iommu_device *iommu,
struct fwnode_handle *fwnode)
{