On Thu, Mar 12, 2009 at 08:26:18AM +0100, Manuel Lauss wrote: > > On Wed, Mar 11, 2009 at 12:28:06PM +0100, Ralf Baechle wrote: > > __do_IRQ() is deprecated since a long time and there are plans to remove > > it for 2.6.30. The MIPS platforms seem to fall into three classes: > > > o Platforms that still seem to rely on __do_IRQ(): > > o All Alchemy platforms: > > db1000_defconfig, db1100_defconfig, db1200_defconfig, db1500_defconfig, > > db1550_defconfig, mtx1_defconfig, pb1100_defconfig, pb1500_defconfig > > and pb1550_defconfig > > I believe that the defconfigs just need to be updated. There are no > __do_IRQ invocations in the alchemy/ tree anymore, and generic hardirqs are > enabled by CONFIG_SOC_AU1X00. __do_IRQ will be called from the generic code if irq_desc->handle_irq is not set for an interrupt and handle_irq will be left NULL if a platform only calls set_irq_chip or even does a homebrew initialization. Fix is to call set_irq_chip_and_handler or better set_irq_chip_and_handler_name. Iow, now with CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ always set half the platforms will blow up because the function pointer irq_desc->handle_irq is unset. Ralf
