linux-hardening - Re: [PATCH v2 2/3] spi: axi-spi-engine: use __counted

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Message-ID: <202403040936.E933B96@keescook>
Date: Mon, 4 Mar 2024 09:36:23 -0800
From: Kees Cook <keescook@...omium.org>
To: David Lechner <dlechner@...libre.com>
Cc: Mark Brown <broonie@...nel.org>,
	Michael Hennerich <michael.hennerich@...log.com>,
	Nuno Sá <nuno.sa@...log.com>,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>,
	linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-hardening@...r.kernel.org
Subject: Re: [PATCH v2 2/3] spi: axi-spi-engine: use __counted_by() attribute

On Mon, Mar 04, 2024 at 10:04:24AM -0600, David Lechner wrote:
> This adds the __counted_by() attribute to the flex array at the end of
> struct spi_engine_program in the AXI SPI Engine controller driver.
> 
> The assignment of the length field has to be reordered to be before
> the access to the flex array in order to avoid potential compiler
> warnings/errors due to adding the __counted_by() attribute.
> 
> Suggested-by: Nuno Sá <nuno.sa@...log.com>
> Signed-off-by: David Lechner <dlechner@...libre.com>

Looks good! Thanks for the respin.

Reviewed-by: Kees Cook <keescook@...omium.org>

-- 
Kees Cook