How to make make-kpkg recompile part of the kernel tree

[Nelson Castillo <nelsoneci@gmail.com>]

Hi.

I use this for kernel compilation.

$ cat ./make-kernel.sh
fakeroot make-kpkg \
             --append_to_version -kstrokes --initrd \
             --revision=rev.01 kernel_image

I'm patching a file for some tests I'm doing
and when I modify it (drivers/char/keyboard.c)
and run ./make-kernel.sh again, the file that
changed doesn't get recompiled.

How can I do that?

I'm saving some time using ccache, but it's still slow
to recompile everything.

Thanks.

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