Re: [PATCH v1] x86: Pin cr4 FSGSBASE

[Kees Cook]

On Tue, May 26, 2020 at 08:56:18AM +0200, Greg KH wrote:
> What about those systems that panic-on-warn?

This is (modulo the general discussion about whether it's the right
way to check) the correct use for WARN*(). It's an undesirable system
state; people choosing panic-on-warn want this:
https://www.kernel.org/doc/html/latest/process/deprecated.html#bug-and-bug-on

-- 
Kees Cook