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| author | Jan Andersson <jan.andersson@ieee.org> | 2006-12-29 16:50:04 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-30 10:56:45 -0800 |
| commit | dbc1333a347745bd55844649c19eb7d28f383a84 (patch) | |
| tree | c48a4edb6d8a7fe22e3515651b6cf6bd6f0784cd | |
| parent | 8018c27b26af56af18eb8b2dc600eba825792d8f (diff) | |
| download | lwn-dbc1333a347745bd55844649c19eb7d28f383a84.tar.gz lwn-dbc1333a347745bd55844649c19eb7d28f383a84.zip | |
[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>
| -rw-r--r-- | arch/sparc/kernel/ioport.c | 3 |
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++; } |