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Date:   Thu, 18 Jul 2019 11:31:31 +0800
From:   Herbert Xu <herbert@gondor.apana.org.au>
To:     Daniel Jordan <daniel.m.jordan@oracle.com>
Cc:     Steffen Klassert <steffen.klassert@secunet.com>,
        Andrea Parri <andrea.parri@amarulasolutions.com>,
        Boqun Feng <boqun.feng@gmail.com>,
        "Paul E . McKenney" <paulmck@linux.ibm.com>,
        Peter Zijlstra <peterz@infradead.org>,
        linux-arch@vger.kernel.org, linux-crypto@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        Mathias Krause <minipli@googlemail.com>
Subject: Re: [PATCH] padata: Replace delayed timer with immediate workqueue
 in padata_reorder
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On Wed, Jul 17, 2019 at 02:32:27PM -0400, Daniel Jordan wrote:
>
> We'll crash when cpumask_next_wrap returns nr_cpumask_bits and later try to get
> the corresponding per-cpu queue.

The whole point of cpumask_next_wrap is to wrap around to the
beginning when it hits nr_cpumask_bits.  So it cannot return
nr_cpumask_bits.

Cheers,
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
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