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Date:   Fri, 23 Oct 2020 12:05:26 +0100
From:   Christoph Hellwig <hch@infradead.org>
To:     NeilBrown <neilb@suse.de>
Cc:     Herbert Xu <herbert@gondor.apana.org.au>,
        Lai Jiangshan <jiangshanlai@gmail.com>,
        Daniel Jordan <daniel.m.jordan@oracle.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
        LKML <linux-kernel@vger.kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: Re: [PATCH] workqueue: export apply_workqueue_attrs()
Message-ID: <20201023110526.GB20293@infradead.org>
References: <87blgzf5xy.fsf@notabene.neil.brown.name>
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On Mon, Oct 19, 2020 at 10:52:09AM +1100, NeilBrown wrote:
> 
> Lustre is a widely used cluster filesystem which is currently
> out-of-tree, but work is underway to make it ready for upstream
> submission.
> 
> Lustre needs apply_workqueue_attrs(), and for this reason that function
> was exported in Commit 6106c0f82481 ("staging: lustre: lnet: convert
> selftest to use workqueues").

None of this matters.  We don't export unused symbols, period.