netdev - Re: [PATCH net-next] rxrpc: uninitialized variable in rxrpc_send_ack

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Message-ID: <Y3Y4qa8xvRvsJBF0@kadam>
Date:   Thu, 17 Nov 2022 16:35:37 +0300
From:   Dan Carpenter <error27@...il.com>
To:     David Howells <dhowells@...hat.com>
Cc:     Marc Dionne <marc.dionne@...istor.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, linux-afs@...ts.infradead.org,
        netdev@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH net-next] rxrpc: uninitialized variable in
 rxrpc_send_ack_packet()

On Thu, Nov 17, 2022 at 11:59:32AM +0000, David Howells wrote:
> Dan Carpenter <error27@...il.com> wrote:
> 
> > We disabled GCC's check for uninitialized variables.  It could be that
> > you have the .config to automatically zero out stack variables.
> > 
> > CONFIG_CC_HAS_AUTO_VAR_INIT_PATTERN=y
> > CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO_BARE=y
> > CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO=y
> 
> Ah.  Is there a way to reenable that?

make W=2 will do it, but W=2 sucks...

regards,
dan carpenter