Commit dbc1333a authored by Jan Andersson's avatar Jan Andersson Committed by Linus Torvalds

[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: default avatarJan Andersson <jan.andersson@ieee.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: William Lee Irwin III <wli@holomorphy.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 8018c27b
......@@ -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++;
}
......
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