diff options
| author | Rob Herring <robh@kernel.org> | 2023-03-10 08:47:09 -0600 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2023-03-22 14:54:42 +0100 |
| commit | a6c9e3874e5759af089c07ab80c87105babc9727 (patch) | |
| tree | e3f06b3065e22194d57d08da82f544ef7098bec8 /drivers/iommu | |
| parent | 1b0b5f50dc83351fa2d2158a183cbe258178cb3f (diff) | |
| download | linux-stable-a6c9e3874e5759af089c07ab80c87105babc9727.tar.gz | |
iommu: Use of_property_present() for testing DT property presence
It is preferred to use typed property access functions (i.e.
of_property_read_<type> functions) rather than low-level
of_get_property/of_find_property functions for reading properties. As
part of this, convert of_get_property/of_find_property calls to the
recently added of_property_present() helper when we just want to test
for presence of a property and nothing more.
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/20230310144709.1542910-1-robh@kernel.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/arm/arm-smmu/arm-smmu.c | 2 | ||||
| -rw-r--r-- | drivers/iommu/ipmmu-vmsa.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.c b/drivers/iommu/arm/arm-smmu/arm-smmu.c index 2ff7a72cf377..d0843caf8760 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu.c @@ -139,7 +139,7 @@ static int arm_smmu_register_legacy_master(struct device *dev, int err; np = dev_get_dev_node(dev); - if (!np || !of_find_property(np, "#stream-id-cells", NULL)) { + if (!np || !of_property_present(np, "#stream-id-cells")) { of_node_put(np); return -ENODEV; } diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c index bdf1a4e5eae0..f4470303d906 100644 --- a/drivers/iommu/ipmmu-vmsa.c +++ b/drivers/iommu/ipmmu-vmsa.c @@ -1014,7 +1014,7 @@ static int ipmmu_probe(struct platform_device *pdev) * the lack of has_cache_leaf_nodes flag or renesas,ipmmu-main property. */ if (!mmu->features->has_cache_leaf_nodes || - !of_find_property(pdev->dev.of_node, "renesas,ipmmu-main", NULL)) + !of_property_present(pdev->dev.of_node, "renesas,ipmmu-main")) mmu->root = mmu; else mmu->root = ipmmu_find_root(); |