Messages in this thread | | | Date | Thu, 02 Apr 2009 14:05:51 +0300 | From | Dmitri Vorobiev <> | Subject | Re: strange code in include/linux/kernel_stat.h |
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Dmitri Vorobiev wrote: > Hi, > > Depending on whether the CONFIG_GENERIC_HARDIRQS option is enabled or not, the header file include/linux/kernel_stat.h defines the following two entities: > > - the macro kstat_irqs_this_cpu for the case when CONFIG_GENERIC_HARDIRQS is set: > > #define kstat_irqs_this_cpu(DESC) \ > ((DESC)->kstat_irqs[smp_processor_id()]) > > - another macro with the same name as the macro above but for the case CONFIG_GENERIC_HARDIRQS is not set: > > #define kstat_irqs_this_cpu(irq) \ > (kstat_this_cpu.irqs[irq]) > > Apparently, it is assumed that the types for the macro argument are different, and depend on the value of CONFIG_GENERIC_HARDIRQS. Is this intentional? >
I still would like to know what's going on there. Anyone knowledgeable out there, please?
Dmitri
> Thanks, > Dmitri > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/
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