PS3: sg chaining support

Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index 190ff4b59a55..07e64b48e7fc 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -616,17 +616,18 @@ static void ps3_unmap_single(struct device *_dev, dma_addr_t dma_addr,
         }
 }
 
-static int ps3_sb_map_sg(struct device *_dev, struct scatterlist *sg, int nents,
-        enum dma_data_direction direction)
+static int ps3_sb_map_sg(struct device *_dev, struct scatterlist *sgl,
+        int nents, enum dma_data_direction direction)
 {
 #if defined(CONFIG_PS3_DYNAMIC_DMA)
         BUG_ON("do");
         return -EPERM;
 #else
         struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
+        struct scatterlist *sg;
         int i;
 
-        for (i = 0; i < nents; i++, sg++) {
+        for_each_sg(sgl, sg, nents, i) {
                 int result = ps3_dma_map(dev->d_region,
                         page_to_phys(sg->page) + sg->offset, sg->length,
                                          &sg->dma_address, 0);