On Tue, 26 Jul 2011 14:07:26 -0400
Alexandre Bounine [off-list ref] wrote:

Replace/remove use of RIO v.1.2 registers/bits that are not forward-compatible
with newer versions of RapidIO specification.

RapidIO specification v. 1.3 removed Write Port CSR, Doorbell CSR,
Mailbox CSR and Mailbox and Doorbell bits of the PEF CAR.

Signed-off-by: Alexandre Bounine <redacted>
Cc: Kumar Gala <redacted>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Li Yang <redacted>
Cc: Thomas Moll <redacted>
Cc: Chul Kim <redacted>
Cc: <stable@kernel.org>

You did a cc:stable but provided no reason (that I can understand) for
backporting the patch.  Please explain why the problem is sufficiently
serious to warrant this action.