CONFIG_IRQ_PINT3 is not available for thedefaultarchitecture x86.
Result is shown for architecture blackfin
default or selected kernelversion does not have config value CONFIG_IRQ_PINT3.
Result is shown for kernelversion 6.7-rc3

IRQ_PIN3

configname: CONFIG_IRQ_PINT3

Linux Kernel Configuration
└─>BF548 Specific Configuration
└─>Priority
└─>IRQ_PIN3
In linux kernel since version 2.6.23 (release Date: 2007-10-09)  
Enter the priority numbers between 7-13 ONLY. Others are Reserved.
This applies to all the above. It is not recommended to assign the
highest priority number 7 to UART or any other device.

depends
CONFIG_BF54x