[PATCH 14 of 14] x86/swiotlb: add default swiotlb_arch_range_needs_mapping

Jeremy Fitzhardinge
2008-12-16T20:23:50Z

From: Ian Campbell <ian.campbell@citrix.com>

Xen will override these later on.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
---
arch/x86/kernel/pci-swiotlb_64.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/arch/x86/kernel/pci-swiotlb_64.c b/arch/x86/kernel/pci-swiotlb_64.c
--- a/arch/x86/kernel/pci-swiotlb_64.c
+++ b/arch/x86/kernel/pci-swiotlb_64.c
@@ -33,6 +33,11 @@
return baddr;
}

+int __weak swiotlb_arch_range_needs_mapping(void *ptr, size_t size)
+{
+ return 0;
+}
+
static dma_addr_t
swiotlb_map_single_phys(struct device *hwdev, phys_addr_t paddr, size_t size,
int direction)