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    Subject[PATCH 6 of 53] ipath - forbid creation of AH with DLID of 0
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    Don't allow an AH to be created with a DLID of 0.

    Signed-off-by: Bryan O'Sullivan <bos@pathscale.com>

    diff -r db56c0ab6a64 -r def81ab50644 drivers/infiniband/hw/ipath/ipath_verbs.c
    --- a/drivers/infiniband/hw/ipath/ipath_verbs.c Fri May 12 15:55:27 2006 -0700
    +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c Fri May 12 15:55:27 2006 -0700
    @@ -810,6 +810,11 @@ static struct ib_ah *ipath_create_ah(str
    if (ah_attr->dlid >= IPS_MULTICAST_LID_BASE &&
    ah_attr->dlid != IPS_PERMISSIVE_LID &&
    !(ah_attr->ah_flags & IB_AH_GRH)) {
    + ret = ERR_PTR(-EINVAL);
    + goto bail;
    + }
    +
    + if (ah_attr->dlid == 0) {
    ret = ERR_PTR(-EINVAL);
    goto bail;
    }
    -
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