Update arch/ to use sg helpers

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

4 files changed, 11 insertions, 18 deletions

diff --git a/arch/sparc64/kernel/iommu.c b/arch/sparc64/kernel/iommu.c
index 29af777..070a484 100644
--- a/arch/sparc64/kernel/iommu.c
+++ b/arch/sparc64/kernel/iommu.c
@@ -472,8 +472,7 @@ static void dma_4u_unmap_single(struct device *dev, dma_addr_t bus_addr,
 	spin_unlock_irqrestore(&iommu->lock, flags);
 }
 
-#define SG_ENT_PHYS_ADDRESS(SG)	\
-	(__pa(page_address((SG)->page)) + (SG)->offset)
+#define SG_ENT_PHYS_ADDRESS(SG)	(__pa(sg_virt((SG))))
 
 static void fill_sg(iopte_t *iopte, struct scatterlist *sg,
 		    int nused, int nelems,
@@ -565,9 +564,7 @@ static int dma_4u_map_sg(struct device *dev, struct scatterlist *sglist,
 	/* Fast path single entry scatterlists. */
 	if (nelems == 1) {
 		sglist->dma_address =
-			dma_4u_map_single(dev,
-					  (page_address(sglist->page) +
-					   sglist->offset),
+			dma_4u_map_single(dev, sg_virt(sglist),
 					  sglist->length, direction);
 		if (unlikely(sglist->dma_address == DMA_ERROR_CODE))
 			return 0;
diff --git a/arch/sparc64/kernel/iommu_common.c b/arch/sparc64/kernel/iommu_common.c
index d7ca900..78e8277 100644
--- a/arch/sparc64/kernel/iommu_common.c
+++ b/arch/sparc64/kernel/iommu_common.c
@@ -73,7 +73,7 @@ static int verify_one_map(struct scatterlist *dma_sg, struct scatterlist **__sg,
 
 	daddr = dma_sg->dma_address;
 	sglen = sg->length;
-	sgaddr = (unsigned long) (page_address(sg->page) + sg->offset);
+	sgaddr = (unsigned long) sg_virt(sg);
 	while (dlen > 0) {
 		unsigned long paddr;
 
@@ -123,7 +123,7 @@ static int verify_one_map(struct scatterlist *dma_sg, struct scatterlist **__sg,
 		sg = sg_next(sg);
 		if (--nents <= 0)
 			break;
-		sgaddr = (unsigned long) (page_address(sg->page) + sg->offset);
+		sgaddr = (unsigned long) sg_virt(sg);
 		sglen = sg->length;
 	}
 	if (dlen < 0) {
@@ -191,7 +191,7 @@ void verify_sglist(struct scatterlist *sglist, int nents, iopte_t *iopte, int np
 			printk("sg(%d): page_addr(%p) off(%x) length(%x) "
 			       "dma_address[%016x] dma_length[%016x]\n",
 			       i,
-			       page_address(sg->page), sg->offset,
+			       page_address(sg_page(sg)), sg->offset,
 			       sg->length,
 			       sg->dma_address, sg->dma_length);
 		}
@@ -207,15 +207,14 @@ unsigned long prepare_sg(struct scatterlist *sg, int nents)
 	unsigned long prev;
 	u32 dent_addr, dent_len;
 
-	prev  = (unsigned long) (page_address(sg->page) + sg->offset);
+	prev  = (unsigned long) sg_virt(sg);
 	prev += (unsigned long) (dent_len = sg->length);
-	dent_addr = (u32) ((unsigned long)(page_address(sg->page) + sg->offset)
-			   & (IO_PAGE_SIZE - 1UL));
+	dent_addr = (u32) ((unsigned long)(sg_virt(sg)) & (IO_PAGE_SIZE - 1UL));
 	while (--nents) {
 		unsigned long addr;
 
 		sg = sg_next(sg);
-		addr = (unsigned long) (page_address(sg->page) + sg->offset);
+		addr = (unsigned long) sg_virt(sg);
 		if (! VCONTIG(prev, addr)) {
 			dma_sg->dma_address = dent_addr;
 			dma_sg->dma_length = dent_len;
diff --git a/arch/sparc64/kernel/ldc.c b/arch/sparc64/kernel/ldc.c
index 85a2be0..c8313cb 100644
--- a/arch/sparc64/kernel/ldc.c
+++ b/arch/sparc64/kernel/ldc.c
@@ -2057,7 +2057,7 @@ static void fill_cookies(struct cookie_state *sp, unsigned long pa,
 
 static int sg_count_one(struct scatterlist *sg)
 {
-	unsigned long base = page_to_pfn(sg->page) << PAGE_SHIFT;
+	unsigned long base = page_to_pfn(sg_page(sg)) << PAGE_SHIFT;
 	long len = sg->length;
 
 	if ((sg->offset | len) & (8UL - 1))
diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c
index fe46ace..8c4875b 100644
--- a/arch/sparc64/kernel/pci_sun4v.c
+++ b/arch/sparc64/kernel/pci_sun4v.c
@@ -365,8 +365,7 @@ static void dma_4v_unmap_single(struct device *dev, dma_addr_t bus_addr,
 	spin_unlock_irqrestore(&iommu->lock, flags);
 }
 
-#define SG_ENT_PHYS_ADDRESS(SG)	\
-	(__pa(page_address((SG)->page)) + (SG)->offset)
+#define SG_ENT_PHYS_ADDRESS(SG)	(__pa(sg_virt((SG))))
 
 static long fill_sg(long entry, struct device *dev,
 		    struct scatterlist *sg,
@@ -477,9 +476,7 @@ static int dma_4v_map_sg(struct device *dev, struct scatterlist *sglist,
 	/* Fast path single entry scatterlists. */
 	if (nelems == 1) {
 		sglist->dma_address =
-			dma_4v_map_single(dev,
-					  (page_address(sglist->page) +
-					   sglist->offset),
+			dma_4v_map_single(dev, sg_virt(sglist),
 					  sglist->length, direction);
 		if (unlikely(sglist->dma_address == DMA_ERROR_CODE))
 			return 0;