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Date: Fri, 07 Jul 2017 14:30:32 +0200
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From: Takashi Iwai <tiwai@suse.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
        Marc Zyngier <marc.zyngier@arm.com>, stable@vger.kernel.org
Subject: [REGRESSION 4.4.x] Please cherry-pick 8fbcfeb8a9cc for 4.4.x
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Hi Greg,

could you cherry-pick the commit

8fbcfeb8a9cc803464d6c166e7991913711c612c
   mac80211_hwsim: Replace bogus hrtimer clockid

for 4.4.x stable?  The current 4.4.x triggers BUG_ON() just by loading
mac80211_hwsim module.  See openSUSE bug#1047651 for details:
  https://bugzilla.opensuse.org/show_bug.cgi?id=1047651


The BUG_ON() itself comes from 4.4.21 stable updates, introduced by
the commit 4fc2942b6e2d:
    hrtimer: Catch illegal clockids
    [ Upstream commit 9006a01829a50cfd6bbd4980910ed46e895e93d7 ]

But in the upstream, this commit was reverted once by commit
82e88ff1ea94, then later on, revived (but with WARN() instead of
BUG_ON()) by the commit 336a9cde10d6.  So, we should also follow that
on 4.4.x, too.


I haven't followed the situation on other stable trees.  Thomas or
Marc should have a better grasp on them, so I leave to them :)


thanks,

Takashi