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From: Joe Perches <joe@perches.com>
To: Nick Desaulniers <ndesaulniers@google.com>,
	Trond Myklebust <trond.myklebust@hammerspace.com>,
	Anna Schumaker <anna.schumaker@netapp.com>
Cc: "Gustavo A . R . Silva" <gustavo@embeddedor.com>,
	Nathan Chancellor <natechancellor@gmail.com>,
	Miaohe Lin <linmiaohe@huawei.com>,
	Hongxiang Lou <louhongxiang@huawei.com>,
	linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org,
	clang-built-linux@googlegroups.com
Subject: Re: [PATCH] nfs: remove incorrect fallthrough label
Date: Tue, 15 Sep 2020 16:29:41 -0700	[thread overview]
Message-ID: <9441ed0f247d0cac6e85f3847e1b4c32a199dd8f.camel@perches.com> (raw)
In-Reply-To: <20200915225751.274531-1-ndesaulniers@google.com>

On Tue, 2020-09-15 at 15:57 -0700, Nick Desaulniers wrote:
> There is no case after the default from which to fallthrough to. Clang
> will error in this case (unhelpfully without context, see link below)
> and GCC will with -Wswitch-unreachable.
> 
> The previous commit should have just removed the comment.
[]
> diff --git a/fs/nfs/super.c b/fs/nfs/super.c
[]
> @@ -889,7 +889,6 @@ static struct nfs_server *nfs_try_mount_request(struct fs_context *fc)
>  		default:
>  			if (rpcauth_get_gssinfo(flavor, &info) != 0)
>  				continue;
> -			fallthrough;

My preference would be to convert the fallthrough
to a break here so if someone ever adds another
label after default: for any reason, the code would
still work as expected.

>  		}
> 


  reply	other threads:[~2020-09-15 23:29 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-15 22:57 Nick Desaulniers
2020-09-15 23:29 ` Joe Perches [this message]
2020-09-15 23:51   ` Gustavo A. R. Silva
2020-09-16  0:01     ` Gustavo A. R. Silva
2020-09-16  0:33       ` Joe Perches
2020-09-16 20:02   ` [PATCH v2] " Nick Desaulniers
2020-09-16 20:18     ` Gustavo A. R. Silva
2020-09-16 20:19     ` Joe Perches
2020-09-17 21:41       ` Nick Desaulniers
2020-09-18  1:36         ` Joe Perches
2020-09-17 21:45       ` [PATCH v3] " Nick Desaulniers
2020-09-24 17:19         ` Nick Desaulniers
2020-09-24 17:40           ` Joe Perches
2020-09-24 18:07             ` Joe Perches
2020-09-24 18:11               ` Anna Schumaker
2020-09-25 11:27                 ` Mark Brown
2020-09-24 18:08           ` Gustavo A. R. Silva
2020-09-17  4:35     ` [PATCH v2] " Nathan Chancellor

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