linux-kernel - Re: [PATCH net-next] net: socket: Fix missing break in switch statement

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Date:   Wed, 24 Apr 2019 14:47:46 -0500
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Networking <netdev@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Dan Carpenter <dan.carpenter@...cle.com>
Subject: Re: [PATCH net-next] net: socket: Fix missing break in switch
 statement

Arnd,

On 4/24/19 1:45 PM, Arnd Bergmann wrote:
> On Wed, Apr 24, 2019 at 5:33 PM Gustavo A. R. Silva
> <gustavo@...eddedor.com> wrote:
>>
>> Add missing break statement in order to prevent the code from falling
>> through to cases SIOCGSTAMP_NEW and SIOCGSTAMPNS_NEW.
>>
>> This bug was found thanks to the ongoing efforts to enable
>> -Wimplicit-fallthrough.
>>
>> Fixes: 0768e17073dc ("net: socket: implement 64-bit timestamps")
>> Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
> 
> Reported-by: Dan Carpenter <dan.carpenter@...cle.com>

Just for clarification: Dan didn't report this to me. I found this
bug while working on the last fall-through warnings in net.

> Acked-by: Arnd Bergmann <arnd@...db.de>
> 
> I had just prepared the same patch after Dan told me about the issue today,
> but you managed to submit it first.
> 
> Thanks for the fix!
> 

Glad to help. :)

Thanks
--
Gustavo