Use sg_phys() instead of virt_to_phys(sg_virt(sg)) so that we don't
require a kernel virtual address.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
arch/alpha/kernel/pci-noop.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c
index df24b76..7319151 100644
--- a/arch/alpha/kernel/pci-noop.c
+++ b/arch/alpha/kernel/pci-noop.c
@@ -145,11 +145,7 @@ static int alpha_noop_map_sg(struct device *dev, struct scatterlist *sgl, int ne
struct scatterlist *sg;
for_each_sg(sgl, sg, nents, i) {
- void *va;
-
- BUG_ON(!sg_page(sg));
- va = sg_virt(sg);
- sg_dma_address(sg) = (dma_addr_t)virt_to_phys(va);
+ sg_dma_address(sg) = (dma_addr_t)sg_phys(sg);
sg_dma_len(sg) = sg->length;
}
--
1.9.1
