This is a version of iommu_fwspec_add_ids() that takes in the fwspec as an
argument instead of getting it through dev->iommu.
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
---
drivers/iommu/iommu.c | 17 +++++++++++------
include/linux/iommu.h | 1 +
2 files changed, 12 insertions(+), 6 deletions(-)
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index ad2963d69a0538..15dbe2d9eb24c2 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -3067,15 +3067,10 @@ int iommu_fwspec_init(struct device *dev, struct fwnode_handle *iommu_fwnode,
}
EXPORT_SYMBOL_GPL(iommu_fwspec_init);
-
-int iommu_fwspec_add_ids(struct device *dev, u32 *ids, int num_ids)
+int iommu_fwspec_append_ids(struct iommu_fwspec *fwspec, u32 *ids, int num_ids)
{
- struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev);
int i, new_num;
- if (!fwspec)
- return -EINVAL;
-
new_num = fwspec->num_ids + num_ids;
if (new_num <= 1) {
if (fwspec->ids != &fwspec->single_id)
@@ -3097,6 +3092,16 @@ int iommu_fwspec_add_ids(struct device *dev, u32 *ids, int num_ids)
fwspec->num_ids = new_num;
return 0;
}
+EXPORT_SYMBOL_GPL(iommu_fwspec_append_ids);
+
+int iommu_fwspec_add_ids(struct device *dev, u32 *ids, int num_ids)
+{
+ struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev);
+
+ if (!fwspec)
+ return -EINVAL;
+ return iommu_fwspec_append_ids(fwspec, ids, num_ids);
+}
EXPORT_SYMBOL_GPL(iommu_fwspec_add_ids);
/*
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 2644c61b572b8f..c5a5e2b5e2cc2a 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -700,6 +700,7 @@ static inline void iommu_fwspec_free(struct device *dev)
}
int iommu_fwspec_add_ids(struct device *dev, u32 *ids, int num_ids);
const struct iommu_ops *iommu_ops_from_fwnode(struct fwnode_handle *fwnode);
+int iommu_fwspec_append_ids(struct iommu_fwspec *fwspec, u32 *ids, int num_ids);
static inline struct iommu_fwspec *dev_iommu_fwspec_get(struct device *dev)
{
--
2.42.0
