[PATCH 5/9] iommu/ipmmu-vmsa: Use helper functions to access dev->iommu_fwspec

Joerg Roedel
2018-12-11T12:19:18Z

drivers/iommu/ipmmu-vmsa.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
index ddf3a492e1d5..679f18bf0634 100644
--- a/drivers/iommu/ipmmu-vmsa.c
+++ b/drivers/iommu/ipmmu-vmsa.c
@@ -81,7 +81,9 @@ static struct ipmmu_vmsa_domain *to_vmsa_domain(struct iommu_domain *dom)

static struct ipmmu_vmsa_device *to_ipmmu(struct device *dev)
{
- return dev->iommu_fwspec ? dev->iommu_fwspec->iommu_priv : NULL;
+ struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev);
+
+ return fwspec ? fwspec->iommu_priv : NULL;
}

#define TLB_LOOP_TIMEOUT 100 /* 100us */
@@ -643,7 +645,7 @@ static void ipmmu_domain_free(struct iommu_domain *io_domain)
static int ipmmu_attach_device(struct iommu_domain *io_domain,
struct device *dev)
{
- struct iommu_fwspec *fwspec = dev->iommu_fwspec;
+ struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev);
struct ipmmu_vmsa_device *mmu = to_ipmmu(dev);
struct ipmmu_vmsa_domain *domain = to_vmsa_domain(io_domain);
unsigned int i;
@@ -692,7 +694,7 @@ static int ipmmu_attach_device(struct iommu_domain *io_domain,
static void ipmmu_detach_device(struct iommu_domain *io_domain,
struct device *dev)
{
- struct iommu_fwspec *fwspec = dev->iommu_fwspec;
+ struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev);
struct ipmmu_vmsa_domain *domain = to_vmsa_domain(io_domain);
unsigned int i;

@@ -744,13 +746,15 @@ static phys_addr_t ipmmu_iova_to_phys(struct iommu_domain *io_domain,
static int ipmmu_init_platform_device(struct device *dev,
struct of_phandle_args *args)
{
+ struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev);
struct platform_device *ipmmu_pdev;

ipmmu_pdev = of_find_device_by_node(args->np);
if (!ipmmu_pdev)
return -ENODEV;

- dev->iommu_fwspec->iommu_priv = platform_get_drvdata(ipmmu_pdev);
+ fwspec->iommu_priv = platform_get_drvdata(ipmmu_pdev);
+
return 0;
}

--
2.17.1