summaryrefslogtreecommitdiffstats
path: root/arch/ia64/sn/pci/pci_dma.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/ia64/sn/pci/pci_dma.c')
-rw-r--r--arch/ia64/sn/pci/pci_dma.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/arch/ia64/sn/pci/pci_dma.c b/arch/ia64/sn/pci/pci_dma.c
index d79ddacfba2..ecd8a52b9b9 100644
--- a/arch/ia64/sn/pci/pci_dma.c
+++ b/arch/ia64/sn/pci/pci_dma.c
@@ -218,16 +218,17 @@ EXPORT_SYMBOL(sn_dma_unmap_single);
*
* Unmap a set of streaming mode DMA translations.
*/
-void sn_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
+void sn_dma_unmap_sg(struct device *dev, struct scatterlist *sgl,
int nhwentries, int direction)
{
int i;
struct pci_dev *pdev = to_pci_dev(dev);
struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
+ struct scatterlist *sg;
BUG_ON(dev->bus != &pci_bus_type);
- for (i = 0; i < nhwentries; i++, sg++) {
+ for_each_sg(sgl, sg, nhwentries, i) {
provider->dma_unmap(pdev, sg->dma_address, direction);
sg->dma_address = (dma_addr_t) NULL;
sg->dma_length = 0;
@@ -244,11 +245,11 @@ EXPORT_SYMBOL(sn_dma_unmap_sg);
*
* Maps each entry of @sg for DMA.
*/
-int sn_dma_map_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
+int sn_dma_map_sg(struct device *dev, struct scatterlist *sgl, int nhwentries,
int direction)
{
unsigned long phys_addr;
- struct scatterlist *saved_sg = sg;
+ struct scatterlist *saved_sg = sgl, *sg;
struct pci_dev *pdev = to_pci_dev(dev);
struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
int i;
@@ -258,7 +259,7 @@ int sn_dma_map_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
/*
* Setup a DMA address for each entry in the scatterlist.
*/
- for (i = 0; i < nhwentries; i++, sg++) {
+ for_each_sg(sgl, sg, nhwentries, i) {
phys_addr = SG_ENT_PHYS_ADDRESS(sg);
sg->dma_address = provider->dma_map(pdev,
phys_addr, sg->length,