I am adding a new system call to sched.c. However, everytime to check whether my system call works properly i need to recompile kernel. Since I am only making changes in sched.c, I thought maybe there is a better and shorter way for this process.

I am currently compiling the kernel by the command

fakeroot make-kpkg --initrd –-append-to-version=-custom kernel_image (i removed kernel headers but still takes a lot time:( )