[PATCH] sparc32: add offset in pci_map_sg()

Add sg->offset to sg->dvma_address in pci_map_sg() on sparc32.  Without the
offset, transfers to buffers that do not begin on a page boundary will not
work as expected.

Signed-off-by: Jan Andersson <jan.andersson@ieee.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: William Lee Irwin III <wli@holomorphy.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index cbbc98846b00..00a39760877b 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -726,7 +726,8 @@ int pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg, int nents,
         /* IIep is write-through, not flushing. */
         for (n = 0; n < nents; n++) {
                 BUG_ON(page_address(sg->page) == NULL);
-                sg->dvma_address = virt_to_phys(page_address(sg->page));
+                sg->dvma_address =
+                        virt_to_phys(page_address(sg->page)) + sg->offset;
                 sg->dvma_length = sg->length;
                 sg++;
         }