Re: Fwd: [Bug 214867] New: UBSAN: shift-out-of-bounds in drivers/of/unittest.c:1933:36

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Subject: Re: Fwd: [Bug 214867] New: UBSAN: shift-out-of-bounds in drivers/of/unittest.c:1933:36
From: Yin Xiujiang <yinxiujiang@xxxxxxxxxx>
Date: Tue, 21 Dec 2021 19:48:17 +0800
Cc: devicetree@xxxxxxxxxxxxxxx, erhard_f@xxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, robh+dt@xxxxxxxxxx
In-reply-to: <c474a371-b524-1da8-4a67-e72cf8f2b0f7@gmail.com>

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.

References:
- Fwd: [Bug 214867] New: UBSAN: shift-out-of-bounds in drivers/of/unittest.c:1933:36
  - From: Frank Rowand

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