LinuxKPI: Constantly use _LINUXKPI_ prefix in include guards MFC after: 1 week Reviewed by: bz, emaste, hselasky, manu Differential Revision: https://reviews.freebsd.org/D33562
LinuxKPI: Import linux/ratelimit.h Required by drm-kmod. Obtained from: OpenBSD MFC after: 1 week Reviewed by: manu Differential Revision: https://reviews.freebsd.org/D33560