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    Subject[01/28] ixgbe: fix vf lookup
    3.2-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Greg Rose <gregory.v.rose@intel.com>

    commit a4b08329c74985e5cc3a44b6d2b2c59444ed8079 upstream.

    Recent addition of code to find already allocated VFs failed to take
    account that systems with 2 or more multi-port SR-IOV capable controllers
    might have already enabled VFs. Make sure that the VFs the function is
    finding are actually subordinate to the particular instance of the adapter
    that is looking for them and not subordinate to some device that has
    previously enabled SR-IOV.

    This bug exists in 3.2 stable as well as 3.3 release candidates.

    Reported-by: David Ahern <daahern@cisco.com>
    Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
    Tested-by: Robert E Garrett <robertX.e.garrett@intel.com>
    Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c | 3 ++-
    1 file changed, 2 insertions(+), 1 deletion(-)

    --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
    +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
    @@ -67,7 +67,8 @@ static int ixgbe_find_enabled_vfs(struct
    vf_devfn = pdev->devfn + 0x80;
    pvfdev = pci_get_device(IXGBE_INTEL_VENDOR_ID, device_id, NULL);
    while (pvfdev) {
    - if (pvfdev->devfn == vf_devfn)
    + if (pvfdev->devfn == vf_devfn &&
    + (pvfdev->bus->number >= pdev->bus->number))
    vfs_found++;
    vf_devfn += 2;
    pvfdev = pci_get_device(IXGBE_INTEL_VENDOR_ID,



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