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Date:   Tue, 15 Oct 2019 09:19:59 +0200
From:   Peter Zijlstra <peterz@infradead.org>
To:     Davidlohr Bueso <dave@stgolabs.net>
Cc:     Manfred Spraul <manfred@colorfullife.com>,
        LKML <linux-kernel@vger.kernel.org>,
        Waiman Long <longman@redhat.com>, 1vier1@web.de,
        Andrew Morton <akpm@linux-foundation.org>,
        Jonathan Corbet <corbet@lwn.net>, parri.andrea@gmail.com
Subject: Re: [PATCH 6/6] Documentation/memory-barriers.txt: Clarify cmpxchg()
Message-ID: <20191015071959.GA2311@hirez.programming.kicks-ass.net>
References: <20191012054958.3624-1-manfred@colorfullife.com>
 <20191012054958.3624-7-manfred@colorfullife.com>
 <20191015012604.eonteqarhvgmrzuc@linux-p48b>
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On Mon, Oct 14, 2019 at 06:26:04PM -0700, Davidlohr Bueso wrote:
> On Sat, 12 Oct 2019, Manfred Spraul wrote:
> > Invalid would be:
> > 	smp_mb__before_atomic();
> > 	atomic_set();
> 
> fyi I've caught a couple of naughty users:
> 
>   drivers/crypto/cavium/nitrox/nitrox_main.c
>   drivers/gpu/drm/msm/adreno/a5xx_preempt.c

Yes, there's still some of that. Andrea went and killed a buch a while
ago I think.