chore: migrate src to solutions

solutions/02_modules/exercice04/skeleton.c

@@ -0,0 +1,64 @@
+/* skeleton.c */
+#include <linux/module.h>	/* needed by all modules */
+#include <linux/init.h>		/* needed for macros */
+#include <linux/kernel.h>	/* needed for debugging */
+
+#include <linux/moduleparam.h>	/* needed for module parameters */
+
+#include <linux/slab.h>		/* needed for dynamic memory allocation */
+#include <linux/list.h>		/* needed for linked list processing */
+#include <linux/string.h>	/* needed for string handling */
+
+static char* text = "dummy text";
+module_param(text, charp, 0);
+static int  elements = 0;
+module_param(elements, int, 0);
+
+struct element {
+	char text[100];
+	int ele_nr;
+	struct list_head node;
+};
+
+static LIST_HEAD (my_list);
+
+static int __init skeleton_init(void)
+{
+	int i;
+	pr_info ("Linux module 04 skeleton loaded\n");
+	pr_info ("  text: %s\n  elements: %d\n", text, elements);
+	for (i = 0; i < elements; i++) {
+		struct element* ele = kzalloc (sizeof(*ele), GFP_KERNEL);
+		if (ele != 0) {
+			strncpy (ele->text, text, 99);
+			ele->ele_nr = i;
+			list_add_tail (&ele->node, &my_list);
+		}
+	}
+	return 0;
+}
+
+static void __exit skeleton_exit(void)
+{
+	struct element* ele;
+	int nb_eles = 0;
+	list_for_each_entry (ele, &my_list, node) {
+		pr_info ("ele [%d/%d/%d] = %s\n", nb_eles, ele->ele_nr, elements, ele->text); 
+		nb_eles++;
+	}
+	while (!list_empty (&my_list)) {
+		ele = list_entry (my_list.next, struct element, node);
+		list_del (&ele->node);
+		kfree (ele);
+	}
+	pr_info ("All elements (%d/%d) of the list have been removed and deleted!\n", nb_eles, elements);
+	pr_info ("Linux module skeleton unloaded\n");
+}
+
+module_init (skeleton_init);
+module_exit (skeleton_exit);
+
+MODULE_AUTHOR ("Daniel Gachet <daniel.gachet@hefr.ch>");
+MODULE_DESCRIPTION ("Module skeleton");
+MODULE_LICENSE ("GPL");
+