There is no good reason for this helper, just opencode it.

Signed-off-by: Christoph Hellwig <h...@lst.de>
---
 arch/powerpc/include/asm/dma-mapping.h    | 6 ------
 arch/powerpc/kernel/pci-common.c          | 2 +-
 arch/powerpc/platforms/cell/iommu.c       | 4 ++--
 arch/powerpc/platforms/powernv/pci-ioda.c | 6 +++---
 arch/powerpc/platforms/pseries/iommu.c    | 7 ++-----
 arch/powerpc/sysdev/dart_iommu.c          | 2 +-
 arch/powerpc/sysdev/fsl_pci.c             | 2 +-
 drivers/misc/cxl/vphb.c                   | 2 +-
 8 files changed, 11 insertions(+), 20 deletions(-)

diff --git a/arch/powerpc/include/asm/dma-mapping.h 
b/arch/powerpc/include/asm/dma-mapping.h
index c70f55d2f5e0..a59c42879194 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -43,11 +43,5 @@ static inline const struct dma_map_ops 
*get_arch_dma_ops(struct bus_type *bus)
        return NULL;
 }
 
-static inline void set_dma_offset(struct device *dev, dma_addr_t off)
-{
-       if (dev)
-               dev->archdata.dma_offset = off;
-}
-
 #endif /* __KERNEL__ */
 #endif /* _ASM_DMA_MAPPING_H */
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 661b937f31ed..b645b3882815 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -966,7 +966,7 @@ static void pcibios_setup_device(struct pci_dev *dev)
 
        /* Hook up default DMA ops */
        set_dma_ops(&dev->dev, pci_dma_ops);
-       set_dma_offset(&dev->dev, PCI_DRAM_OFFSET);
+       dev->dev.archdata.dma_offset = PCI_DRAM_OFFSET;
 
        /* Additional platform DMA/iommu setup */
        phb = pci_bus_to_host(dev->bus);
diff --git a/arch/powerpc/platforms/cell/iommu.c 
b/arch/powerpc/platforms/cell/iommu.c
index 75fd2ee57e26..348a815779c1 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -577,10 +577,10 @@ static void cell_dma_dev_setup(struct device *dev)
                u64 addr = cell_iommu_get_fixed_address(dev);
 
                if (addr != OF_BAD_ADDR)
-                       set_dma_offset(dev, addr + dma_iommu_fixed_base);
+                       dev->archdata.dma_offset = addr + dma_iommu_fixed_base;
                set_iommu_table_base(dev, cell_get_iommu_table(dev));
        } else {
-               set_dma_offset(dev, cell_dma_nommu_offset);
+               dev->archdata.dma_offset = cell_dma_nommu_offset;
        }
 }
 
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c 
b/arch/powerpc/platforms/powernv/pci-ioda.c
index 23fd46cd2ab3..e516d99bb2ed 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -1735,7 +1735,7 @@ static void pnv_pci_ioda_dma_dev_setup(struct pnv_phb 
*phb, struct pci_dev *pdev
 
        pe = &phb->ioda.pe_array[pdn->pe_number];
        WARN_ON(get_dma_ops(&pdev->dev) != &dma_iommu_ops);
-       set_dma_offset(&pdev->dev, pe->tce_bypass_base);
+       pdev->dev.archdata.dma_offset = pe->tce_bypass_base;
        set_iommu_table_base(&pdev->dev, pe->table_group.tables[0]);
        /*
         * Note: iommu_add_device() will fail here as
@@ -1848,7 +1848,7 @@ static bool pnv_pci_ioda_iommu_bypass_supported(struct 
pci_dev *pdev,
                if (rc)
                        return rc;
                /* 4GB offset bypasses 32-bit space */
-               set_dma_offset(&pdev->dev, (1ULL << 32));
+               pdev->dev.archdata.dma_offset = (1ULL << 32);
                return true;
        }
 
@@ -1863,7 +1863,7 @@ static void pnv_ioda_setup_bus_dma(struct pnv_ioda_pe *pe,
 
        list_for_each_entry(dev, &bus->devices, bus_list) {
                set_iommu_table_base(&dev->dev, pe->table_group.tables[0]);
-               set_dma_offset(&dev->dev, pe->tce_bypass_base);
+               dev->dev.archdata.dma_offset = pe->tce_bypass_base;
                if (add_to_group)
                        iommu_add_device(&dev->dev);
 
diff --git a/arch/powerpc/platforms/pseries/iommu.c 
b/arch/powerpc/platforms/pseries/iommu.c
index 8965d174c53b..a2ff20d154fe 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -1197,7 +1197,6 @@ static bool iommu_bypass_supported_pSeriesLP(struct 
pci_dev *pdev, u64 dma_mask)
 {
        struct device_node *dn = pci_device_to_OF_node(pdev), *pdn;
        const __be32 *dma_window = NULL;
-       u64 dma_offset;
 
        /* only attempt to use a new window if 64-bit DMA is requested */
        if (dma_mask < DMA_BIT_MASK(64))
@@ -1219,11 +1218,9 @@ static bool iommu_bypass_supported_pSeriesLP(struct 
pci_dev *pdev, u64 dma_mask)
        }
 
        if (pdn && PCI_DN(pdn)) {
-               dma_offset = enable_ddw(pdev, pdn);
-               if (dma_offset != 0) {
-                       set_dma_offset(&pdev->dev, dma_offset);
+               pdev->dev.archdata.dma_offset = enable_ddw(pdev, pdn);
+               if (pdev->dev.archdata.dma_offset)
                        return true;
-               }
        }
 
        return false;
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index 2681a19347ba..2e24fc87ed84 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -386,7 +386,7 @@ static bool dart_device_on_pcie(struct device *dev)
 static void pci_dma_dev_setup_dart(struct pci_dev *dev)
 {
        if (dart_is_u4 && dart_device_on_pcie(&dev->dev))
-               set_dma_offset(&dev->dev, DART_U4_BYPASS_BASE);
+               dev->dev.archdata.dma_offset = DART_U4_BYPASS_BASE;
        set_iommu_table_base(&dev->dev, &iommu_table_dart);
 }
 
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index 081ed84c3f4c..964a4aede6b1 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -141,7 +141,7 @@ static int fsl_pci_dma_set_mask(struct device *dev, u64 
dma_mask)
         */
        if (dev_is_pci(dev) && dma_mask >= pci64_dma_offset * 2 - 1) {
                dev->bus_dma_mask = 0;
-               set_dma_offset(dev, pci64_dma_offset);
+               dev->archdata.dma_offset = pci64_dma_offset;
        }
 
        return 0;
diff --git a/drivers/misc/cxl/vphb.c b/drivers/misc/cxl/vphb.c
index f4c0e9d2affe..f4ca1a4ada66 100644
--- a/drivers/misc/cxl/vphb.c
+++ b/drivers/misc/cxl/vphb.c
@@ -44,7 +44,7 @@ static bool cxl_pci_enable_device_hook(struct pci_dev *dev)
        }
 
        set_dma_ops(&dev->dev, &dma_direct_ops);
-       set_dma_offset(&dev->dev, PAGE_OFFSET);
+       dev->dev.archdata.dma_offset = PAGE_OFFSET;
 
        /*
         * Allocate a context to do cxl things too.  If we eventually do real
-- 
2.19.1

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