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Date:   Tue, 22 Mar 2022 23:27:43 -0700
From:   Christoph Hellwig <hch@infradead.org>
To:     Qu Wenruo <wqu@suse.com>
Cc:     linux-btrfs@vger.kernel.org
Subject: Re: [PATCH v4 2/9] btrfs: introduce a helper to locate an extent item
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Adding a static function without a user will generate a compiler
warning.