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authorChristoph Hellwig <hch@lst.de>2018-08-24 10:29:02 +0200
committerChristoph Hellwig <hch@lst.de>2018-09-08 11:19:38 +0200
commit46053c73685411915d3de50c5a0045beef32806b (patch)
tree818a65233a9a95164ccfcfd46a22d05dfcc72f4f /arch
parentdma-mapping: remove dma_deconfigure (diff)
downloadlinux-46053c73685411915d3de50c5a0045beef32806b.tar.xz
linux-46053c73685411915d3de50c5a0045beef32806b.zip
dma-mapping: clear dev->dma_ops in arch_teardown_dma_ops
There is no reason to leave the per-device dma_ops around when deconfiguring a device, so move this code from arm64 into the common code. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm64/include/asm/dma-mapping.h5
-rw-r--r--arch/arm64/mm/dma-mapping.c5
2 files changed, 0 insertions, 10 deletions
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index b7847eb8a7bb..0a2d13332545 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -39,11 +39,6 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
const struct iommu_ops *iommu, bool coherent);
#define arch_setup_dma_ops arch_setup_dma_ops
-#ifdef CONFIG_IOMMU_DMA
-void arch_teardown_dma_ops(struct device *dev);
-#define arch_teardown_dma_ops arch_teardown_dma_ops
-#endif
-
/* do not use this function in a driver */
static inline bool is_device_dma_coherent(struct device *dev)
{
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index 072c51fb07d7..cdcb73db9ea2 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -862,11 +862,6 @@ out_err:
dev_name(dev));
}
-void arch_teardown_dma_ops(struct device *dev)
-{
- dev->dma_ops = NULL;
-}
-
#else
static void __iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,