constant kernel entry point?
 

I am using mips kernel for one of my hardware. Every time i change the '.config' new kernel entry point is created.
Can we make 'kernel entry point' to be same irrespective of '.config' changes?

No. The kernel, like any other computer program, is composed of many files that are subsequently linked to form the kernel-image. Any change to the config will completely change what "the kernel" consists of... including the "entry point" where execution begins after booting.