MAX_IRQ_SOURCES     4 include/asm-x86/mach-default/mach_mpspec.h #define MAX_IRQ_SOURCES 256
MAX_IRQ_SOURCES     4 include/asm-x86/mach-generic/mach_mpspec.h #define MAX_IRQ_SOURCES 256
MAX_IRQ_SOURCES    29 include/asm-x86/mpspec.h #define MAX_IRQ_SOURCES (MAX_MP_BUSSES * 4)