linux-kernel - Re: [PATCH] ath9k: Remove -Warray-bounds exception

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Message-ID: <87r0zjczlu.fsf@toke.dk>
Date:   Fri, 07 Oct 2022 19:28:29 +0200
From:   Toke Høiland-Jørgensen <toke@...e.dk>
To:     Kees Cook <keescook@...omium.org>
Cc:     Kees Cook <keescook@...omium.org>, linux-wireless@...r.kernel.org,
        linux-kernel@...r.kernel.org, Kalle Valo <kvalo@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org
Subject: Re: [PATCH] ath9k: Remove -Warray-bounds exception

Kees Cook <keescook@...omium.org> writes:

> GCC-12 emits false positive -Warray-bounds warnings with
> CONFIG_UBSAN_SHIFT (-fsanitize=shift). This is fixed in GCC 13[1],
> and there is top-level Makefile logic to remove -Warray-bounds for
> known-bad GCC versions staring with commit f0be87c42cbd ("gcc-12: disable
> '-Warray-bounds' universally for now").
>
> Remove the local work-around.
>
> [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105679
>
> Signed-off-by: Kees Cook <keescook@...omium.org>

Acked-by: Toke Høiland-Jørgensen <toke@...e.dk>