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Message-ID: <877eqli0f0.fsf@anholt.net>
Date: Fri, 09 Mar 2018 10:11:47 -0800
From: Eric Anholt <eric@...olt.net>
To: "Tobin C. Harding" <me@...in.cc>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Stefan Wahren <stefan.wahren@...e.com>
Cc: "Tobin C. Harding" <me@...in.cc>, kernel-hardening@...ts.openwall.com, linux-kernel@...r.kernel.org, driverdev-devel@...uxdriverproject.org, Tycho Andersen <tycho@...ho.ws>, Kees Cook <keescook@...omium.org>
Subject: Re: [PATCH] staging: vchiq_arm: Clear VLA warning
"Tobin C. Harding" <me@...in.cc> writes:
> The kernel would like to have all stack VLA usage removed[1]. The
> array here is fixed (declared with a const variable) but it appears
> like VLA to the compiler. We can use a pre-processor define to quiet
> the compiler.
>
> [1]: https://lkml.org/lkml/2018/3/7/621
>
> Signed-off-by: Tobin C. Harding <me@...in.cc>
> ---
>
> The name of this constant may need changing, there is already a
> pre-processor constant VCHIQ_MAX_SERVICES
Maybe just use ARRAY_SIZE(local_max_services) and not have the #define?
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