linux-kernel - Re: [PATCH] i3c: dw: Annotate struct dw_i3c_xfer with __counted

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Message-ID: <169567773737.243402.14069734796583624800.b4-ty@bootlin.com>
Date:   Mon, 25 Sep 2023 23:36:46 +0200
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     Kees Cook <keescook@...omium.org>
Cc:     Jeremy Kerr <jk@...econstruct.com.au>,
        Joel Stanley <joel@....id.au>, linux-i3c@...ts.infradead.org,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Tom Rix <trix@...hat.com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>,
        Matt Johnston <matt@...econstruct.com.au>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Jack Chen <zenghuchen@...gle.com>,
        linux-kernel@...r.kernel.org, llvm@...ts.linux.dev,
        linux-hardening@...r.kernel.org
Subject: Re: [PATCH] i3c: dw: Annotate struct dw_i3c_xfer with __counted_by


On Fri, 22 Sep 2023 10:50:11 -0700, Kees Cook wrote:
> Prepare for the coming implementation by GCC and Clang of the __counted_by
> attribute. Flexible array members annotated with __counted_by can have
> their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS
> (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
> functions).
> 
> As found with Coccinelle[1], add __counted_by for struct dw_i3c_xfer.
> 
> [...]

Applied, thanks!

[1/1] i3c: dw: Annotate struct dw_i3c_xfer with __counted_by
      commit: 014c9a0e6f9ff573099051e1e2ff6efc3470d02d

Best regards,

-- 
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com