CONFIG_GENERIC_PENDING_IRQ is not available for thedefaultarchitecture x86.
Result is shown for architecture ia64

CONFIG_GENERIC_PENDING_IRQ (not configurable)

modulename: migration.ko

configname: CONFIG_GENERIC_PENDING_IRQ

IA-64 Linux Kernel Configuration
└─>GENERIC_PENDING_IRQ
In linux kernel since version 2.6.14 (release Date: 2005-10-27)  
source code:
kernel/irq/migration.c