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Commit 3885123d authored by FUJITA Tomonori's avatar FUJITA Tomonori
Browse files

swiotlb: remove unused swiotlb_alloc_boot() 



Nobody uses swiotlb_alloc_boot().

Signed-off-by: default avatarFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: default avatarBecky Bruce <beckyb@kernel.crashing.org>
parent 4733fd32

arch/x86/kernel/pci-swiotlb.c

+0 −5
Original line number Diff line number Diff line
@@ -13,11 +13,6 @@ 


int swiotlb __read_mostly;



void * __init swiotlb_alloc_boot(size_t size, unsigned long nslabs)

{

	return alloc_bootmem_low_pages(size);

}



void *swiotlb_alloc(unsigned order, unsigned long nslabs)

{

	return (void *)__get_free_pages(GFP_DMA | __GFP_NOWARN, order);

include/linux/swiotlb.h

+0 −2
Original line number Diff line number Diff line
@@ -14,7 +14,6 @@ struct scatterlist; 
 */

#define IO_TLB_SEGSIZE	128





/*

 * log of the size of each IO TLB slab.  The number of slabs is command line

 * controllable.
@@ -24,7 +23,6 @@ struct scatterlist; 
extern void

swiotlb_init(void);



extern void *swiotlb_alloc_boot(size_t bytes, unsigned long nslabs);

extern void *swiotlb_alloc(unsigned order, unsigned long nslabs);



extern dma_addr_t swiotlb_phys_to_bus(struct device *hwdev,

lib/swiotlb.c

+1 −6
Original line number Diff line number Diff line
@@ -114,11 +114,6 @@ setup_io_tlb_npages(char *str) 
__setup("swiotlb=", setup_io_tlb_npages);

/* make io_tlb_overflow tunable too? */



void * __weak __init swiotlb_alloc_boot(size_t size, unsigned long nslabs)

{

	return alloc_bootmem_low_pages(size);

}



void * __weak swiotlb_alloc(unsigned order, unsigned long nslabs)

{

	return (void *)__get_free_pages(GFP_DMA | __GFP_NOWARN, order);
@@ -189,7 +184,7 @@ swiotlb_init_with_default_size(size_t default_size) 
	/*

	 * Get IO TLB memory from the low pages

	 */

	io_tlb_start = swiotlb_alloc_boot(bytes, io_tlb_nslabs);

	io_tlb_start = alloc_bootmem_low_pages(bytes);

	if (!io_tlb_start)

		panic("Cannot allocate SWIOTLB buffer");

	io_tlb_end = io_tlb_start + bytes;