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ioat: fix type mismatch for ->dmacount

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->dmacount tracks the sequence number of active descriptors.  It is
written to the DMACOUNT register to update the channel's view of pending
descriptors in the chain.  The register is 16-bits so ->dmacount should
be unsigned and 16-bit as well.  Also modify ->desccount to maintain
alignment.

This was never a problem in practice because we never compared dmacount
values, but this is a bug waiting to happen.

Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2009-07-28 14:44:04 -07:00
parent f2427e276f
commit 77867fff03
1 changed files with 2 additions and 2 deletions
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4
drivers/dma/ioat/dma.h
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@ -102,8 +102,8 @@ struct ioat_dma_chan {
struct delayed_work work;
int pending;
int dmacount;
int desccount;
u16 dmacount;
u16 desccount;
struct ioatdma_device *device;
struct dma_chan common;