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Date:   Tue, 21 Dec 2021 19:48:17 +0800
From:   Yin Xiujiang <yinxiujiang@...inos.cn>
To:     frowand.list@...il.com
Cc:     devicetree@...r.kernel.org, erhard_f@...lbox.org,
        linux-kernel@...r.kernel.org, robh+dt@...nel.org
Subject: Re: Fwd: [Bug 214867] New: UBSAN: shift-out-of-bounds in drivers/of/unittest.c:1933:36

I think if you use unsigned, then 'id -= overlay_first_id' will not be 
less than 0 but will be a very large value and will be harder to judge.

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