target/linux/brcm47xx/patches-2.6.25/630-ssb-fix-irq-init.patch

   1 Subject: [OpenWrt-Devel] [PATCH] ssb-pcicore: Fix IRQ-vector init on embedded devices
   2
   3 On embedded devices we must not route the interrupts through
   4 the PCI core, if our host-bus is not PCI.
   5
   6 Reported-by: Steve Brown <sbrown@cortland.com>
   7 Signed-off-by: Michael Buesch <mb@bu3sch.de>
   8
   9 Index: wireless-testing/drivers/ssb/driver_pcicore.c
  10 ===================================================================
  11 --- wireless-testing.orig/drivers/ssb/driver_pcicore.c  2008-06-10 13:58:23.000000000 +0200
  12 +++ wireless-testing/drivers/ssb/driver_pcicore.c       2008-07-04 23:16:02.000000000 +0200
  13 @@ -537,6 +537,13 @@ int ssb_pcicore_dev_irqvecs_enable(struc
  14         int err = 0;
  15         u32 tmp;
  16
  17 +       if (dev->bus->bustype != SSB_BUSTYPE_PCI) {
  18 +               /* This SSB device is not on a PCI host-bus. So the IRQs are
  19 +                * not routed through the PCI core.
  20 +                * So we must not enable routing through the PCI core. */
  21 +               goto out;
  22 +       }
  23 +
  24         if (!pdev)
  25                 goto out;
  26         bus = pdev->bus;