Linus Torvalds wrote:
> Oh well.. I'm not very proud of this, because quite frankly, -rc2 has way 
> more changes than I really like.
>   

Hi Linus,

rc2 fails to build on my thinkpad t43:

  CC      arch/i386/kernel/io_apic.o
arch/i386/kernel/io_apic.c: In function 'setup_IO_APIC_irqs':
arch/i386/kernel/io_apic.c:1357: error: 'struct irq_desc' has no member
named 'affinity'
arch/i386/kernel/io_apic.c: In function 'io_apic_set_pci_routing':
arch/i386/kernel/io_apic.c:2878: error: 'struct irq_desc' has no member
named 'affinity'
make[1]: *** [arch/i386/kernel/io_apic.o] Error 1
make: *** [arch/i386/kernel] Error 2

The problem is caused by affinity being within #ifdef SMP in struct
irq_desc in irq.h:
#ifdef CONFIG_SMP
        cpumask_t               affinity;
        unsigned int            cpu;
#endif

I don't know whether the whole functions or just a single line should be
placed under #ifdef CONFIG_SMP. Eric (in CC) will know better than I do.

My config is attached.

Brice