no such file or directory error. What is wrong? - c

Question

I'm trying to build a kernel module. I'm on fedora 25
Here is my Makefile:
obj-m += simple.o
all:
make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
clean:
make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
This is the simple.c file:
#include <linux/init.h>
#include <linux/module.h>
#include <linux/kernel.h>
/* This function is called when the module is loaded. */
int simple_init(void)
{
printk(KERN_INFO "Loading Module\n");
return 0;
}
/* This function is called when the module is removed. */
void simple_exit(void) {
printk(KERN_INFO "Removing Module\n");
}
/* Macros for registering module entry and exit points. */
module_init( simple_init );
module_exit( simple_exit );
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Simple Module");
MODULE_AUTHOR("SGG");
The error I'm getting after using the make command:
make -C /lib/modules/4.11.3-202.fc25.x86_64/build M=/home/nubian/Downloads/ch02/ch2 modules
make[1]: *** /lib/modules/4.11.3-202.fc25.x86_64/build: No such file or directory. Stop.
Makefile:7: recipe for target 'default' failed
make: *** [default] Error 2

Answer 1

You should always use $(MAKE) never make when you invoke a recursive make. However that's not your problem.
Your problem is that you don't have the module build environment for your currently-running kernel installed. If you install it, it will create the directories you need to build modules for your kernel.
See, for example, the yum install command on this page.