RDMA/cxgb3: Fix page shift calculation in build_phys_page_list()
authorSteve Wise <swise@opengridcomputing.com>
Mon, 21 Jan 2008 20:42:11 +0000 (14:42 -0600)
committerRoland Dreier <rolandd@cisco.com>
Fri, 25 Jan 2008 22:17:45 +0000 (14:17 -0800)
commitd08ca26ceec4dfbcfdbada4ad728db742ccaecd1
tree15c79eb89ce17fcb2b96f1497e52c352d433b0ff
parent856b5925047d73a85557203d124d62c5eea1fbd3
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>
drivers/infiniband/hw/cxgb3/iwch_mem.c