swiotlb: remove swiotlb_arch_range_needs_mapping
Nobody uses swiotlb_arch_range_needs_mapping().
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Becky Bruce <beckyb@kernel.crashing.org>
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 3c4c21c..dc1cd1f 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -141,11 +141,6 @@
return !is_buffer_dma_capable(dma_get_mask(hwdev), addr, size);
}
-int __weak swiotlb_arch_range_needs_mapping(phys_addr_t paddr, size_t size)
-{
- return 0;
-}
-
static void swiotlb_print_info(unsigned long bytes)
{
phys_addr_t pstart, pend;
@@ -312,11 +307,6 @@
return swiotlb_arch_address_needs_mapping(hwdev, addr, size);
}
-static inline int range_needs_mapping(phys_addr_t paddr, size_t size)
-{
- return swiotlb_force || swiotlb_arch_range_needs_mapping(paddr, size);
-}
-
static int is_swiotlb_buffer(char *addr)
{
return addr >= io_tlb_start && addr < io_tlb_end;
@@ -646,8 +636,7 @@
* we can safely return the device addr and not worry about bounce
* buffering it.
*/
- if (!address_needs_mapping(dev, dev_addr, size) &&
- !range_needs_mapping(phys, size))
+ if (!address_needs_mapping(dev, dev_addr, size) && !swiotlb_force)
return dev_addr;
/*
@@ -810,7 +799,7 @@
phys_addr_t paddr = sg_phys(sg);
dma_addr_t dev_addr = swiotlb_phys_to_bus(hwdev, paddr);
- if (range_needs_mapping(paddr, sg->length) ||
+ if (swiotlb_force ||
address_needs_mapping(hwdev, dev_addr, sg->length)) {
void *map = map_single(hwdev, sg_phys(sg),
sg->length, dir);