LinuxQuestions.org - error: implicit declaration of function â??find_task_by_pid

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error: implicit declaration of function ‘find_task_by_pid_type’

getting an error during compiling a kernel module

Quote:

error: implicit declaration of function ‘find_task_by_pid_type’

Here are directories i have included:

Quote:

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <asm/siginfo.h> //siginfo
#include <linux/rcupdate.h> //rcu_read_lock
#include <linux/sched.h> //find_task_by_pid_type
#include <linux/debugfs.h>
#include <linux/uaccess.h>
#include <linux/unistd.h>
#include <linux/pid.h>

Using:
Ubuntu 10.04 LTS
linux kernel version is : 2.6.32-41-generic

I have already tried to install build-essentials after updating:

Quote:

apt-get update
aptitude install build-essential
apt-get install build-essential

Any idea?

Sindhu

can't find the header file?
prototype not in header or your use is different that that defined (missing or extra param, wrong type etc)