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| author | Joerg Roedel <jroedel@suse.de> | 2018-11-29 14:01:00 +0100 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2018-12-17 10:38:30 +0100 |
| commit | df90365580623b5c53cd9a46c14375191123d776 (patch) | |
| tree | eaf9065372a1d5cc9f72642f935e406a64ce9e9b /drivers/iommu/ipmmu-vmsa.c | |
| parent | 98cc4f7196422ee20e00e2067e484e3136dbe4a5 (diff) | |
| download | linux-df90365580623b5c53cd9a46c14375191123d776.tar.gz linux-df90365580623b5c53cd9a46c14375191123d776.tar.bz2 linux-df90365580623b5c53cd9a46c14375191123d776.zip | |
iommu/ipmmu-vmsa: Use helper functions to access dev->iommu_fwspec
Use the new helpers dev_iommu_fwspec_get()/set() to access
the dev->iommu_fwspec pointer. This makes it easier to move
that pointer later into another struct.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/ipmmu-vmsa.c')
| -rw-r--r-- | drivers/iommu/ipmmu-vmsa.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c index c67c3aa8537a..4b264b63035b 100644 --- a/drivers/iommu/ipmmu-vmsa.c +++ b/drivers/iommu/ipmmu-vmsa.c @@ -82,7 +82,9 @@ 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 */ @@ -641,7 +643,7 @@ 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; @@ -690,7 +692,7 @@ 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; @@ -742,13 +744,15 @@ 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; } |