(Adding lkml and Thomas as IRQ subsystem maintainer to CC) On Sun, Oct 21, 2012 at 03:40:16AM -0400, Paul Thompson wrote: > Hi; > > In menuconfig, General setup -> IRQ subsystem, there are two > possible menu-items. One depends partly on IRQ_DOMAIN, and the other > on MAY_HAVE_SPARSE_IRQ. > > On the x86-64 arch, neither of these seems to be set, so the > menu entry is blank if entered (displaying an odd ^@ if you try to > navigate up or down. And sometimes some screen garbage on the sides.) > > Previously (in the 3.2 kernel at least) this menu used to be > populated by the "Support sparse IRQ numbering" menu-item, which > at that time depended on HAVE_SPARSE_IRQ, and was forced to YES. > > I do not know if the current behaviour is intended, but it > is ugly and confusing to be confronted with a blank menu page. > > Ideally, the "IRQ subsystem" menu would not even show up > if it would contain no menu-items, but I do not know enough to > formulate that constraint. > > A simple alternative is a comment section to reasure babes in > the wood of kernel configuration that something is not amiss. I include > a sample patch. > > Paul > set.mailinglist@xxxxxxxxx > --- linux-3.7-rc2/kernel/irq/Kconfig.orig 2012-10-20 15:11:32.000000000 -0400 > +++ linux-3.7-rc2/kernel/irq/Kconfig 2012-10-21 03:14:56.272952813 -0400 > @@ -4,6 +4,9 @@ config HAVE_GENERIC_HARDIRQS > > if HAVE_GENERIC_HARDIRQS > menu "IRQ subsystem" > + > +comment "Some configurations may have no available options here" > + > # > # Interrupt subsystem related configuration options > # -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
