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Commit 6b42a7ea authored by Stefano Stabellini's avatar Stefano Stabellini
Browse files

swiotlb-xen: static inline xen_phys_to_bus, xen_bus_to_phys, xen_virt_to_bus... 


swiotlb-xen: static inline xen_phys_to_bus, xen_bus_to_phys, xen_virt_to_bus and range_straddles_page_boundary

This functions are small and called frequently. Static inline them.

Signed-off-by: default avatarStefano Stabellini <stefano.stabellini@eu.citrix.com>
parent 3d24bbd7

drivers/xen/swiotlb-xen.c

+4 −4
Original line number Diff line number Diff line
@@ -72,17 +72,17 @@ static unsigned long xen_io_tlb_nslabs; 


static u64 start_dma_addr;



static dma_addr_t xen_phys_to_bus(phys_addr_t paddr)

static inline dma_addr_t xen_phys_to_bus(phys_addr_t paddr)

{

	return phys_to_machine(XPADDR(paddr)).maddr;

}



static phys_addr_t xen_bus_to_phys(dma_addr_t baddr)

static inline phys_addr_t xen_bus_to_phys(dma_addr_t baddr)

{

	return machine_to_phys(XMADDR(baddr)).paddr;

}



static dma_addr_t xen_virt_to_bus(void *address)

static inline dma_addr_t xen_virt_to_bus(void *address)

{

	return xen_phys_to_bus(virt_to_phys(address));

}
@@ -105,7 +105,7 @@ static int check_pages_physically_contiguous(unsigned long pfn, 
	return 1;

}



static int range_straddles_page_boundary(phys_addr_t p, size_t size)

static inline int range_straddles_page_boundary(phys_addr_t p, size_t size)

{

	unsigned long pfn = PFN_DOWN(p);

	unsigned int offset = p & ~PAGE_MASK;