This commit was reverted later. I guess the revert was probably not picked up properly.

Regards,
Yong
From: syzbot <syzbot+94cc2a66fc228b23f360-Pl5Pbv+GP7P466ipTTIvnc23WoclnBCfAL8bYrjMMd8@public.gmane.org>
Sent: Tuesday, May 21, 2019 11:16 PM
To: Zhao, Yong; airlied-cv59FeDIM0c@public.gmane.org; Deucher, Alexander; amd-gfx@lists.freedesktop.org; ast-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org; bpf-u79uwXL29TY76Z2rM5mHXA@public.gmane.org; Koenig, Christian; daniel-/w4YWyX8dFk@public.gmane.org; daniel-FeC+5ew28dpmcu3hnIyYJQ@public.gmane.org; davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org; Zhou, David(ChunMing); dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org; Quan, Evan; Kuehling, Felix; Wentland, Harry; kafai-b10kYP2dOMg@public.gmane.org; kuznet-BV4Dd6KD/ZI@public.gmane.org.ac.ru; linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org; netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org; Zeng, Oak; Huang, Ray; rex.zhu-5C7GfCeVMHo@public.gmane.org; songliubraving-b10kYP2dOMg@public.gmane.org; syzkaller-bugs@googlegroups.com; yhs-b10kYP2dOMg@public.gmane.org; Zhao, Yong; yoshfuji-VfPWfsRibaP+Ru+s062T9g@public.gmane.org
Subject: Re: WARNING: locking bug in inet_autobind
 
[CAUTION: External Email]

syzbot has bisected this bug to:

commit c0d9271ecbd891cdeb0fad1edcdd99ee717a655f
Author: Yong Zhao <Yong.Zhao-5C7GfCeVMHo@public.gmane.org>
Date:   Fri Feb 1 23:36:21 2019 +0000

     drm/amdgpu: Delete user queue doorbell variables

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1433ece4a00000
start commit:   f49aa1de Merge tag 'for-5.2-rc1-tag' of git://git.kernel.o..
git tree:       net-next
final crash:    https://syzkaller.appspot.com/x/report.txt?x=1633ece4a00000
console output: https://syzkaller.appspot.com/x/log.txt?x=1233ece4a00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=fc045131472947d7
dashboard link: https://syzkaller.appspot.com/bug?extid=94cc2a66fc228b23f360
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=163731f8a00000

Reported-by: syzbot+94cc2a66fc228b23f360-Pl5Pbv+GP7P466ipTTIvnc23WoclnBCfAL8bYrjMMd8@public.gmane.org
Fixes: c0d9271ecbd8 ("drm/amdgpu: Delete user queue doorbell variables")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection