License taints

This module seems to work fine on various Linux machines, however, when I attempt to run it on a specific machine namely, CentOS with a kernel version of 2. I should note that my project has multiple files. Okay, I've figured out what I did wrong. I attempted to enable the -Werror flag for my module's compilation. In doing this, I added the following line to the makefile:. I assume that this messed up something about the kernel's module licensing.

Removing this line made the module work again. If you're having this sort of problem, make sure that you're not messing around with environment variables in your makefile. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow.

Learn more. Asked 8 years, 7 months ago. Active 5 years, 1 month ago. Viewed 13k times. While this message may be displayed for a variety of reasons the case of this product seos kernel drivers as long as you are using the supported build of our endpoint software on this machine these messages can be ignored. These messages are usually simply informational except for the last one. If you enable Linux Secure Boot feature the module verification failed may indicate that the kernel will not load this module on boot.

With the latest builds of our endpoint software we do ship the certificate which can be imported for verification. Now after some product specific modification when we are loading the module its giving error "module license 'unspecified' taints kernel". But when i am listing the modules through lsmod command then its showing module.

Post by Ntin Kumar Garg loaded. So for checking whether the module is actually running or not when i try to print some message in the init function then its not showing on insmod. That shows that its not going in init function and module is not loaded properly. Post by Ntin Kumar Garg I am not getting what is the problem.