• Yinghai Lu's avatar
    PCI: workaround hard-wired bus number V2 · 71f6bd4a
    Yinghai Lu authored
    Fixes PCI device detection on IBM xSeries IBM 3850 M2 / x3950 M2
    when using ACPI resources (_CRS).
    This is default, a manual workaround (without this patch)
    would be pci=nocrs boot param.
    
    V2: Add dev_warn if the workaround is hit. This should reveal
    how common such setups are (via google) and point to possible
    problems if things are still not working as expected.
    -> Suggested by Jan Beulich.
    
    Cc: stable@vger.kernel.org
    Tested-by: garyhade@us.ibm.com
    Signed-off-by: default avatarYinghai Lu <yinghai.lu@oracle.com>
    Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
    71f6bd4a
probe.c 44 KB