linux-kernel - Re: [PATCH RESEND][next] rds: Fix fall-through warnings for Clang

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Date:   Mon, 17 May 2021 20:01:48 -0500
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Haakon Bugge <haakon.bugge@...cle.com>
Cc:     "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Santosh Shilimkar <santosh.shilimkar@...cle.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        OFED mailing list <linux-rdma@...r.kernel.org>,
        "rds-devel@....oracle.com" <rds-devel@....oracle.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-hardening@...r.kernel.org" <linux-hardening@...r.kernel.org>
Subject: Re: [PATCH RESEND][next] rds: 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 5/6/21 01:50, Haakon Bugge wrote:
> Sorry for the delay.
> 
> 
>> On 20 Apr 2021, at 22:10, Gustavo A. R. Silva <gustavo@...eddedor.com> wrote:
>>
>> Hi all,
>>
>> Friendly ping: who can take this, please?
>>
>> Thanks
>> --
>> Gustavo
>>
>> On 3/5/21 03:06, Gustavo A. R. Silva wrote:
>>> In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple
>>> warnings by explicitly adding multiple break statements 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>
> 
> Reviewed-by: Håkon Bugge <haakon.bugge@...cle.com>
> 
> 
> Thxs, Håkon
> 
> 
>>> ---
>>> net/rds/tcp_connect.c | 1 +
>>> net/rds/threads.c     | 2 ++
>>> 2 files changed, 3 insertions(+)
>>>
>>> diff --git a/net/rds/tcp_connect.c b/net/rds/tcp_connect.c
>>> index 4e64598176b0..5461d77fff4f 100644
>>> --- a/net/rds/tcp_connect.c
>>> +++ b/net/rds/tcp_connect.c
>>> @@ -78,6 +78,7 @@ void rds_tcp_state_change(struct sock *sk)
>>> 	case TCP_CLOSE_WAIT:
>>> 	case TCP_CLOSE:
>>> 		rds_conn_path_drop(cp, false);
>>> +		break;
>>> 	default:
>>> 		break;
>>> 	}
>>> diff --git a/net/rds/threads.c b/net/rds/threads.c
>>> index 32dc50f0a303..1f424cbfcbb4 100644
>>> --- a/net/rds/threads.c
>>> +++ b/net/rds/threads.c
>>> @@ -208,6 +208,7 @@ void rds_send_worker(struct work_struct *work)
>>> 		case -ENOMEM:
>>> 			rds_stats_inc(s_send_delayed_retry);
>>> 			queue_delayed_work(rds_wq, &cp->cp_send_w, 2);
>>> +			break;
>>> 		default:
>>> 			break;
>>> 		}
>>> @@ -232,6 +233,7 @@ void rds_recv_worker(struct work_struct *work)
>>> 		case -ENOMEM:
>>> 			rds_stats_inc(s_recv_delayed_retry);
>>> 			queue_delayed_work(rds_wq, &cp->cp_recv_w, 2);
>>> +			break;
>>> 		default:
>>> 			break;
>>> 		}
>>>
>