linux-kernel - Re: [PATCH] tg3: fix array subscript out of bounds compilation error

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Message-ID: <d64f5a02-68cf-2978-c523-094c458aa866@amd.com>
Date:   Fri, 21 Jul 2023 17:29:24 -0500
From:   Carlos Bilbao <carlos.bilbao@....com>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     Kuniyuki Iwashima <kuniyu@...zon.com>, davem@...emloft.net,
        edumazet@...gle.com, linux-kernel@...r.kernel.org,
        mchan@...adcom.com, netdev@...r.kernel.org, pabeni@...hat.com,
        prashant@...adcom.com, siva.kallam@...adcom.com
Subject: Re: [PATCH] tg3: fix array subscript out of bounds compilation error

On 7/18/23 9:54 PM, Jakub Kicinski wrote:
> On Tue, 18 Jul 2023 10:52:39 -0500 Carlos Bilbao wrote:
>>>> Fix encountered compilation error in tg3.c where an array subscript was  
>>>
>>> What is the error ?  
>>
>> drivers/net/ethernet/broadcom/tg3.c: In function ‘tg3_init_one’:
> 
> What compiler are you using? Any extra flags?

GCC version 13.1.1. No special flags.

> 
> I remember seeing this warning too, but I can't repro it now (gcc 13.1;
> clang 16).
> 
>>>> above the array bounds of 'struct tg3_napi[5]'. Add an additional check in
>>>> the for loop to ensure that it does not exceed the bounds of
>>>> 'struct tg3_napi' (defined by TG3_IRQ_MAX_VECS).
>>>>
>>>> Reviewed-By: Carlos Bilbao <carlos.bilbao@....com>
> 
> We need a sign-off tag

Apologies, Signed-off-By: Carlos Bilbao <carlos.bilbao@....com>

Thanks,
Carlos