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swiotlb: remove unused swiotlb_alloc()

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Nobody uses swiotlb_alloc().

Signed-off-by: FUJITA Tomonori <[email protected]>
Acked-by: Becky Bruce <[email protected]>
This commit is contained in:
FUJITA Tomonori 2009-07-10 10:04:51 +09:00
commit bb52196be3
3 changed files with 2 additions and 13 deletions
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8
lib/swiotlb.c
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@ -114,11 +114,6 @@ setup_io_tlb_npages(char *str)
__setup("swiotlb=", setup_io_tlb_npages);
/* make io_tlb_overflow tunable too? */
void * __weak swiotlb_alloc(unsigned order, unsigned long nslabs)
{
return (void *)__get_free_pages(GFP_DMA | __GFP_NOWARN, order);
}
dma_addr_t __weak swiotlb_phys_to_bus(struct device *hwdev, phys_addr_t paddr)
{
return paddr;
@ -240,7 +235,8 @@ swiotlb_late_init_with_default_size(size_t default_size)
bytes = io_tlb_nslabs << IO_TLB_SHIFT;
while ((SLABS_PER_PAGE << order) > IO_TLB_MIN_SLABS) {
io_tlb_start = swiotlb_alloc(order, io_tlb_nslabs);
io_tlb_start = (void *)__get_free_pages(GFP_DMA | __GFP_NOWARN,
order);
if (io_tlb_start)
break;
order--;