Issue while compiling make file for linux kernel?

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http://stackoverflow.com – I have just started with linux kernel development and I am having issue with compiling make file. It is the tutorial of hello world. My hello-1.c file * * hello−1.c − The simplest kernel module. */ #include <linux/module.h> /* Needed by all modules */ #include <linux/kernel.h> /* Needed for KERN_INFO */ int init_module(void) { printk(KERN_INFO "Hello world 1.\n"); /* * A non 0 return means init_module failed; module can't be loaded. */ return 0; } void cleanup_module(void) { printk(KERN_INFO "Goodbye world 1.\n"); } My Makefile obj−m += hello−1.o all: make (HowTos)