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    Subject[PATCH] PCI: Do not run NVidia quirks related to MSI with MSI disabled
    From: Rafael J. Wysocki <>

    There is no reason to run NVidia-specific quirks related to HT MSI
    mappings with MSI disabled via pci=nomsi, so make
    __nv_msi_ht_cap_quirk() return immediately in that case.

    This allows at least one machine to boot 100% of the time with
    pci=nomsi (it still doesn't boot reliably without that).

    Addresses .

    Signed-off-by: Rafael J. Wysocki <>
    drivers/pci/quirks.c | 3 +++
    1 file changed, 3 insertions(+)

    Index: linux-2.6/drivers/pci/quirks.c
    --- linux-2.6.orig/drivers/pci/quirks.c
    +++ linux-2.6/drivers/pci/quirks.c
    @@ -2390,6 +2390,9 @@ static void __devinit __nv_msi_ht_cap_qu
    int pos;
    int found;

    + if (!pci_msi_enabled())
    + return;
    /* check if there is HT MSI cap or enabled on this device */
    found = ht_check_msi_mapping(dev);

     \ /
      Last update: 2010-07-23 22:23    [W:0.021 / U:20.072 seconds]
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