Re: sym53c875: reading /proc causes SCSI parity error

David S. Miller (davem@redhat.com)
Wed, 28 Nov 2001 14:49:25 -0800 (PST)


From: Gérard Roudier <groudier@free.fr>
Date: Wed, 28 Nov 2001 20:51:01 +0100 (CET)

On Wed, 28 Nov 2001, David S. Miller wrote:

> Why not just put some bitmap pointer into the pci device
> struct. If it is non-NULL, it specifies PCI config space
> areas which have side-effects.

Or a simple offset beyond which reading data isn't desirable for
whatever reasons.

I do not think that is sufficient.

I have seen chips where only one single PCI config space word would
trigger problems, and it was due to a hw bug. The "offset beyond"
scheme would not allow to cover this case.
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