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

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Date:   Mon, 17 May 2021 20:11:37 -0500
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Steffen Klassert <steffen.klassert@...unet.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-hardening@...r.kernel.org
Subject: Re: [PATCH RESEND][next] xfrm: 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 15:08, Gustavo A. R. Silva wrote:
> Hi all,
> 
> Friendly ping: who can take this, please?
> 
> Thanks
> --
> Gustavo
> 
> On 3/5/21 03:23, 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/xfrm/xfrm_interface.c | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/net/xfrm/xfrm_interface.c b/net/xfrm/xfrm_interface.c
>> index 8831f5a9e992..41de46b5ffa9 100644
>> --- a/net/xfrm/xfrm_interface.c
>> +++ b/net/xfrm/xfrm_interface.c
>> @@ -432,6 +432,7 @@ static int xfrmi4_err(struct sk_buff *skb, u32 info)
>>  	case ICMP_DEST_UNREACH:
>>  		if (icmp_hdr(skb)->code != ICMP_FRAG_NEEDED)
>>  			return 0;
>> +		break;
>>  	case ICMP_REDIRECT:
>>  		break;
>>  	default:
>>