linux-hardening - Re: [PATCH v2 2/3] firmware: exynos-acpm: Count number of commands in acpm

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Message-ID: <cdfa7ca0-2c7b-42ef-ab79-4c63d4c10c35@linaro.org>
Date: Thu, 19 Feb 2026 13:59:30 +0200
From: Tudor Ambarus <tudor.ambarus@...aro.org>
To: Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>,
 Krzysztof Kozlowski <krzk@...nel.org>, Alim Akhtar
 <alim.akhtar@...sung.com>, Kees Cook <kees@...nel.org>,
 "Gustavo A. R. Silva" <gustavoars@...nel.org>,
 Nathan Chancellor <nathan@...nel.org>,
 Nick Desaulniers <nick.desaulniers+lkml@...il.com>,
 Bill Wendling <morbo@...gle.com>, Justin Stitt <justinstitt@...gle.com>
Cc: linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-hardening@...r.kernel.org,
 llvm@...ts.linux.dev
Subject: Re: [PATCH v2 2/3] firmware: exynos-acpm: Count number of commands in
 acpm_xfer

On 2/19/26 1:27 PM, Krzysztof Kozlowski wrote:
> Struct acpm_xfer holds two buffers with u32 commands - rxd and txd - and
> counts their size by rxlen and txlen.  "len" suffix is here ambiguous,
> so could mean length of the buffer or length of commands, and these are
> not the same since each command is u32.  Rename these to rxcnt and
> txcnt, and change their usage to count the number of commands in each
> buffer.
> 
> This will have a benefit of allowing to use __counted_by_ptr later.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>

Reviewed-by: Tudor Ambarus <tudor.ambarus@...aro.org>

Thank you!