From 5e7b9a6ae8c352819a2d998a065910b536de0e8c Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 16 Feb 2023 07:24:19 +0100 Subject: [PATCH] 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: Christoph Hellwig Reviewed-by: Robin Murphy --- include/linux/swiotlb.h | 5 ----- kernel/dma/swiotlb.c | 8 -------- 2 files changed, 13 deletions(-) diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h index 35bc4e2..bcef10e 100644 --- a/include/linux/swiotlb.h +++ b/include/linux/swiotlb.h @@ -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; diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c index a34c38b..f35d934 100644 --- a/kernel/dma/swiotlb.c +++ b/kernel/dma/swiotlb.c @@ -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; -- 2.7.4