From: Steve Wise <swise@opengridcomputing.com>
Date: Mon, 21 Jan 2008 20:42:11 +0000 (-0600)
Subject: RDMA/cxgb3: Fix page shift calculation in build_phys_page_list()
X-Git-Tag: v2.6.25-rc1~1234^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d08ca26ceec4dfbcfdbada4ad728db742ccaecd1;p=pandora-kernel.git

RDMA/cxgb3: Fix page shift calculation in build_phys_page_list()

The existing logic incorrectly maps this buffer list:

    0: addr 0x10001000, size 0x1000
    1: addr 0x10002000, size 0x1000

To this bogus page list:

    0: 0x10000000
    1: 0x10002000

The shift calculation must also take into account the address of the
first entry masked by the page_mask as well as the last address+size
rounded up to the next page size.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
---

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