[IA64-SGI] disable msi for all altix pci devices

Temporary patch to make pci_enable_msi() fail gracefully on altix.  Will be
removed after 2.6.16 releases and the msi abstraction patches start flowing.

Signed-off-by: Mark Maule <maule@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/arch/ia64/sn/kernel/io_init.c b/arch/ia64/sn/kernel/io_init.c
index a4c78152b336..6dbb7fca1c57 100644
--- a/arch/ia64/sn/kernel/io_init.c
+++ b/arch/ia64/sn/kernel/io_init.c
@@ -467,6 +467,13 @@ void sn_pci_fixup_slot(struct pci_dev *dev)
                 pcidev_info->pdi_sn_irq_info = NULL;
                 kfree(sn_irq_info);
         }
+
+        /*
+         * MSI currently not supported on altix.  Remove this when
+         * the MSI abstraction patches are integrated into the kernel
+         * (sometime after 2.6.16 releases)
+         */
+        dev->no_msi = 1;
 }
 
 /*