feature: split module in two file

Makefile

@@ -1,4 +1,5 @@
 obj-m += hello.o
+hello-objs := hello-1.o hello-2.o
 
 KDIR := /usr/src/linux-headers-$(shell uname -r)
 

hello-1.c

@@ -0,0 +1,17 @@
+#include <linux/init.h> /* Needed for the __init, __initdata and __exit macros. */
+#include <linux/module.h> /* for all kernel modules */
+#include <linux/printk.h> /* Needed for pr_info() */
+
+static int intInitData __initdata = 3;
+
+static int __init start_module(void) /* module entry point */
+{
+   pr_info("Hello , user %d !\n", intInitData);
+   return 0;
+}
+
+module_init(start_module);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("My first cool kernel module");
+MODULE_AUTHOR("user");

hello-2.c

@@ -1,30 +1,17 @@
 #include <linux/init.h> /* Needed for the __init, __initdata and __exit macros. */
 #include <linux/module.h> /* for all kernel modules */
 #include <linux/kernel.h> /* for KERN_INFO */
-#include <linux/printk.h> /* Needed for pr_info() */
 #include <linux/moduleparam.h> /* Needed for module_param() */
 
-static int intInitData __initdata = 3;
 static int intParameter = 420;
 
 module_param(intParameter, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
 MODULE_PARM_DESC(intParameter, "An integer");
 
-static int __init start_module(void) /* module entry point */
-{
-   pr_info("Hello , user %d !\n", intInitData);
-   return 0;
-}
-
 static void __exit exit_module(void) /* module exit point */
 {
    printk(KERN_INFO "Goodbye , user param %d!\n", intParameter);
    return;
 }
 
-module_init(start_module);
 module_exit(exit_module);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("My first cool kernel module");
-MODULE_AUTHOR("user");