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| author | Robin Murphy <robin.murphy@arm.com> | 2024-04-19 17:54:46 +0100 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2024-04-26 12:07:28 +0200 |
| commit | f091e93306e0429ebb7589b9874590b6a9705e64 (patch) | |
| tree | 1a8e21d38d16d7b81f734b27d92776542f746060 /drivers/of | |
| parent | b67483b3c44eaef2f771fa4c712e13f452675a67 (diff) | |
| download | linux-stable-f091e93306e0429ebb7589b9874590b6a9705e64.tar.gz linux-stable-f091e93306e0429ebb7589b9874590b6a9705e64.tar.bz2 linux-stable-f091e93306e0429ebb7589b9874590b6a9705e64.zip | |
dma-mapping: Simplify arch_setup_dma_ops()
The dma_base, size and iommu arguments are only used by ARM, and can
now easily be deduced from the device itself, so there's no need to pass
them through the callchain as well.
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Michael Kelley <mhklinux@outlook.com> # For Hyper-V
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Tested-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/5291c2326eab405b1aa7693aa964e8d3cb7193de.1713523152.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/device.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/of/device.c b/drivers/of/device.c index 9e7963972fa7..312c63361211 100644 --- a/drivers/of/device.c +++ b/drivers/of/device.c @@ -95,7 +95,6 @@ int of_dma_configure_id(struct device *dev, struct device_node *np, { const struct bus_dma_region *map = NULL; struct device_node *bus_np; - u64 dma_start = 0; u64 mask, end = 0; bool coherent; int iommu_ret; @@ -118,7 +117,6 @@ int of_dma_configure_id(struct device *dev, struct device_node *np, return ret == -ENODEV ? 0 : ret; } else { /* Determine the overall bounds of all DMA regions */ - dma_start = dma_range_map_min(map); end = dma_range_map_max(map); } @@ -175,7 +173,7 @@ int of_dma_configure_id(struct device *dev, struct device_node *np, } else dev_dbg(dev, "device is behind an iommu\n"); - arch_setup_dma_ops(dev, dma_start, end - dma_start + 1, coherent); + arch_setup_dma_ops(dev, coherent); if (iommu_ret) of_dma_set_restricted_buffer(dev, np); |