insmod error

Hi All, I have built a kernel module against a 4.9.2 for arm board. while inserting this kernel module I am getting below message which is high lighted in red color what exactly mean loading out-of-tree module. what could be the possible reason to get this message? Please help me out to understand below message mean. ubuntu@ubuntu-armhf:/home/Madhu/i2c$ dmesg [ 704.283100] i2c_client: loading out-of-tree module taints kernel. [ 704.285359] driver initialization [ 704.285693] inside probe function Regards, Madhu