linux-hardening - Re: [PATCH v2][next] cgroup: Avoid -Wstringop-overflow warnings

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Message-ID: <ZN02wFqzvwP2JI-K@slm.duckdns.org>
Date:   Wed, 16 Aug 2023 10:51:12 -1000
From:   Tejun Heo <tj@...nel.org>
To:     "Gustavo A. R. Silva" <gustavoars@...nel.org>
Cc:     Zefan Li <lizefan.x@...edance.com>,
        Johannes Weiner <hannes@...xchg.org>, cgroups@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH v2][next] cgroup: Avoid -Wstringop-overflow warnings

Hello,

On Wed, Aug 16, 2023 at 02:50:16PM -0600, Gustavo A. R. Silva wrote:
> Change the notation from pointer-to-array to pointer-to-pointer.
> With this, we avoid the compiler complaining about trying
> to access a region of size zero as an argument during function
> calls.

Haha, I thought the functions were actually accessing the memory. This can't
be an intended behavior on the compiler's side, right?

Thanks.

-- 
tejun