Linux kernel modules makefiles doubts

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06-18-2012

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Linux kernel modules makefiles doubts

This query is regarding the makefiles of linux kernel modules.
I saw at some sites on net it is suggesting to include the following path:
KERNEL_SOURCE := /usr/src/linux...

while at some places it is askibg to include /lib/modules path:
KERNEL_SOURCE := /lib/modules/2.6.27-7-generic/build

I see that lib/modules links to the usr/src/linux... folder.

What is the difference between the two paths and how it will impact me if I include the first path?

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