Commit 5e7b9a6a authored by Christoph Hellwig's avatar Christoph Hellwig
Browse files

swiotlb: remove swiotlb_max_segment 



swiotlb_max_segment has always been a bogus API, so remove it now that
the remaining callers are gone.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarRobin Murphy <robin.murphy@arm.com>
parent 033c40a8

include/linux/swiotlb.h

+0 −5
Original line number Diff line number Diff line
@@ -121,7 +121,6 @@ static inline bool is_swiotlb_force_bounce(struct device *dev) 


void swiotlb_init(bool addressing_limited, unsigned int flags);

void __init swiotlb_exit(void);

unsigned int swiotlb_max_segment(void);

size_t swiotlb_max_mapping_size(struct device *dev);

bool is_swiotlb_active(struct device *dev);

void __init swiotlb_adjust_size(unsigned long size);
@@ -140,10 +139,6 @@ static inline bool is_swiotlb_force_bounce(struct device *dev) 
static inline void swiotlb_exit(void)

{

}

static inline unsigned int swiotlb_max_segment(void)

{

	return 0;

}

static inline size_t swiotlb_max_mapping_size(struct device *dev)

{

	return SIZE_MAX;

kernel/dma/swiotlb.c

+0 −8
Original line number Diff line number Diff line
@@ -156,14 +156,6 @@ setup_io_tlb_npages(char *str) 
}

early_param("swiotlb", setup_io_tlb_npages);



unsigned int swiotlb_max_segment(void)

{

	if (!io_tlb_default_mem.nslabs)

		return 0;

	return rounddown(io_tlb_default_mem.nslabs << IO_TLB_SHIFT, PAGE_SIZE);

}

EXPORT_SYMBOL_GPL(swiotlb_max_segment);



unsigned long swiotlb_size_or_default(void)

{

	return default_nslabs << IO_TLB_SHIFT;