netdev - Re: [PATCH v14 net-next 09/23] net/tcp: Add TCP-AO sign to twsk

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Date: Wed, 11 Oct 2023 20:26:34 +0100
From: Dmitry Safonov <dima@...sta.com>
To: Eric Dumazet <edumazet@...gle.com>
Cc: David Ahern <dsahern@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
 Jakub Kicinski <kuba@...nel.org>, "David S. Miller" <davem@...emloft.net>,
 linux-kernel@...r.kernel.org, Andy Lutomirski <luto@...capital.net>,
 Ard Biesheuvel <ardb@...nel.org>, Bob Gilligan <gilligan@...sta.com>,
 Dan Carpenter <error27@...il.com>, David Laight <David.Laight@...lab.com>,
 Dmitry Safonov <0x7f454c46@...il.com>, Donald Cassidy <dcassidy@...hat.com>,
 Eric Biggers <ebiggers@...nel.org>, "Eric W. Biederman"
 <ebiederm@...ssion.com>, Francesco Ruggeri <fruggeri05@...il.com>,
 "Gaillardetz, Dominik" <dgaillar@...na.com>,
 Herbert Xu <herbert@...dor.apana.org.au>,
 Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
 Ivan Delalande <colona@...sta.com>, Leonard Crestez <cdleonard@...il.com>,
 "Nassiri, Mohammad" <mnassiri@...na.com>,
 Salam Noureddine <noureddine@...sta.com>,
 Simon Horman <simon.horman@...igine.com>,
 "Tetreault, Francois" <ftetreau@...na.com>, netdev@...r.kernel.org
Subject: Re: [PATCH v14 net-next 09/23] net/tcp: Add TCP-AO sign to twsk

On 10/11/23 19:10, Eric Dumazet wrote:
> On Tue, Oct 10, 2023 at 1:07 AM Dmitry Safonov <dima@...sta.com> wrote:
[..]
>>  static inline struct tcp_timewait_sock *tcp_twsk(const struct sock *sk)
>> diff --git a/include/net/tcp_ao.h b/include/net/tcp_ao.h
>> index 629ab0365b83..af2caf7e76fc 100644
>> --- a/include/net/tcp_ao.h
>> +++ b/include/net/tcp_ao.h
>> @@ -85,6 +85,7 @@ struct tcp_ao_info {
>>                                 __unused        :31;
>>         __be32                  lisn;
>>         __be32                  risn;
>> +       atomic_t                refcnt;         /* Protects twsk destruction */
> 
> This needs to be a refcount_t

Sure, sounds good.

Thanks,
           Dmitry