linux-hardening - Re: [PATCH RESEND][next] rxrpc: Fix fall-through warnings for Clang

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Date:   Fri, 4 Jun 2021 17:35:42 -0500
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        David Howells <dhowells@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     linux-afs@...ts.infradead.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH RESEND][next] rxrpc: Fix fall-through warnings for Clang

Hi all,

If you don't mind, I'm taking this in my -next[1] branch for v5.14.

Thanks
--
Gustavo

[1] https://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux.git/log/?h=for-next/kspp

On 4/20/21 15:09, Gustavo A. R. Silva wrote:
> Hi all,
> 
> Friendly ping: who can take this, please?
> 
> Thanks
> --
> Gustavo
> 
> On 3/5/21 03:19, Gustavo A. R. Silva wrote:
>> In preparation to enable -Wimplicit-fallthrough for Clang, fix a warning
>> by explicitly adding a break statement instead of letting the code fall
>> through to the next case.
>>
>> Link: https://github.com/KSPP/linux/issues/115
>> Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
>> ---
>>  net/rxrpc/af_rxrpc.c | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c
>> index 41671af6b33f..2b5f89713e36 100644
>> --- a/net/rxrpc/af_rxrpc.c
>> +++ b/net/rxrpc/af_rxrpc.c
>> @@ -471,6 +471,7 @@ static int rxrpc_connect(struct socket *sock, struct sockaddr *addr,
>>  	switch (rx->sk.sk_state) {
>>  	case RXRPC_UNBOUND:
>>  		rx->sk.sk_state = RXRPC_CLIENT_UNBOUND;
>> +		break;
>>  	case RXRPC_CLIENT_UNBOUND:
>>  	case RXRPC_CLIENT_BOUND:
>>  		break;
>>