Problem in compiling a kernel module

[Ponkumaran Annadurai]

 I am trying to compile a sample hello world module, but when issue make
command, it says that "make: Nothing to be done for `all'.".  Also I tried
the command "make hello", then it is showing that "linux/module.h no such
file". But I am in the newly compiled kernel. What might be the problem?

-- 
thanks,
kumaran
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