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swiotlb: mark is_swiotlb_buffer static

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Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
Christoph Hellwig 2018-04-12 14:49:23 +02:00
parent 21bb9d64c5
commit b65125c6ac
2 changed files with 1 additions and 2 deletions
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1
include/linux/swiotlb.h
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@ -121,7 +121,6 @@ static inline unsigned int swiotlb_max_segment(void) { return 0; }
#endif
extern void swiotlb_print_info(void);
extern int is_swiotlb_buffer(phys_addr_t paddr);
extern void swiotlb_set_max_segment(unsigned int);
extern const struct dma_map_ops swiotlb_dma_ops;

2
kernel/dma/swiotlb.c
View File

@ -429,7 +429,7 @@ void __init swiotlb_exit(void)
max_segment = 0;
}
int is_swiotlb_buffer(phys_addr_t paddr)
static int is_swiotlb_buffer(phys_addr_t paddr)
{
return paddr >= io_tlb_start && paddr < io_tlb_end;
}