unimore/kernel-hacking-2024-linux-steffo
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dma-mapping: mark dma_supported static

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Now that the remaining users in drivers are gone, this function can be
marked static.

Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Christoph Hellwig 2022-08-21 16:06:44 +02:00
parent 43b919017f
commit 9fc18f6d56
2 changed files with 1 additions and 7 deletions
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5
include/linux/dma-mapping.h
View file

@ -139,7 +139,6 @@ int dma_mmap_attrs(struct device *dev, struct vm_area_struct *vma,
void *cpu_addr, dma_addr_t dma_addr, size_t size,
unsigned long attrs);
bool dma_can_mmap(struct device *dev);
int dma_supported(struct device *dev, u64 mask);
bool dma_pci_p2pdma_supported(struct device *dev);
int dma_set_mask(struct device *dev, u64 mask);
int dma_set_coherent_mask(struct device *dev, u64 mask);
@ -248,10 +247,6 @@ static inline bool dma_can_mmap(struct device *dev)
{
return false;
}
static inline int dma_supported(struct device *dev, u64 mask)
{
return 0;
}
static inline bool dma_pci_p2pdma_supported(struct device *dev)
{
return false;

3
kernel/dma/mapping.c
View file

@ -707,7 +707,7 @@ int dma_mmap_noncontiguous(struct device *dev, struct vm_area_struct *vma,
}
EXPORT_SYMBOL_GPL(dma_mmap_noncontiguous);
int dma_supported(struct device *dev, u64 mask)
static int dma_supported(struct device *dev, u64 mask)
{
const struct dma_map_ops *ops = get_dma_ops(dev);
@ -721,7 +721,6 @@ int dma_supported(struct device *dev, u64 mask)
return 1;
return ops->dma_supported(dev, mask);
}
EXPORT_SYMBOL(dma_supported);
bool dma_pci_p2pdma_supported(struct device *dev)
{