linux-kernel - Re: [PATCH v2] sky2: Make sure there is at least one frag

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Message-Id: <169623062348.24181.10859418276789667320.git-patchwork-notify@kernel.org>
Date:   Mon, 02 Oct 2023 07:10:23 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Kees Cook <keescook@...omium.org>
Cc:     mlindner@...vell.com, stephen@...workplumber.org,
        davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, netdev@...r.kernel.org, lkp@...el.com,
        aleksander.lobakin@...el.com, linux-kernel@...r.kernel.org,
        linux-hardening@...r.kernel.org
Subject: Re: [PATCH v2] sky2: Make sure there is at least one frag_addr available

Hello:

This patch was applied to netdev/net.git (main)
by David S. Miller <davem@...emloft.net>:

On Fri, 22 Sep 2023 09:50:39 -0700 you wrote:
> In the pathological case of building sky2 with 16k PAGE_SIZE, the
> frag_addr[] array would never be used, so the original code was correct
> that size should be 0. But the compiler now gets upset with 0 size arrays
> in places where it hasn't eliminated the code that might access such an
> array (it can't figure out that in this case an rx skb with fragments
> would never be created). To keep the compiler happy, make sure there is
> at least 1 frag_addr in struct rx_ring_info:
> 
> [...]

Here is the summary with links:
  - [v2] sky2: Make sure there is at least one frag_addr available
    https://git.kernel.org/netdev/net/c/6a70e5cbedaf

You are awesome, thank you!
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