git: drm: Sync drm_read() with Linux 4.7.10

commit d420a8a88d271f244e34680d0f9bf03c7bf2f5ed Author: François Tigeot Date: Sun Aug 5 17:07:46 2018 +0200 drm: Sync drm_read() with Linux 4.7.10 This should fix various issues related to multithreaded races and make the drm subsystem more robust. Summary of changes:

git: DragonFly_RELEASE_5_2 if_clone: Fix if_clone_destroy() with renamed cloned interface

commit e2d4945959773df738afe9def357f1efda11428e Author: Aaron LI Date: Sat Aug 4 20:30:04 2018 +0800 if_clone: Fix if_clone_destroy() with renamed cloned interface Since the interface can be renamed (SIOCSIFNAME), it's very wrong for if_clone_destroy() to determine the unit