linux-kernel - Re: [PATCH] cifs: Convert to use the fallthrough macro

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Message-ID: <CAH2r5mvHLXtCAam9Wcw6PJUGg3bY8PvjYG8ijFh0km-CKNEUnA@mail.gmail.com>
Date:   Sun, 9 Aug 2020 11:46:33 -0500
From:   Steve French <smfrench@...il.com>
To:     linmiaohe <linmiaohe@...wei.com>
Cc:     Steve French <sfrench@...ba.org>,
        CIFS <linux-cifs@...r.kernel.org>,
        samba-technical <samba-technical@...ts.samba.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] cifs: Convert to use the fallthrough macro

Is this conversion from "/* Fallthrough */"   to the preferred (?)
"fallthrough;" documented anywhere?

All I see is a few fs changesets like:

commit c730ae0c6bb3125ccb776fb2ab6abbdff500c02c
Author: Marcos Paulo de Souza <mpdesouza@...e.com>
Date:   Tue Jun 16 15:54:29 2020 -0300

    btrfs: convert comments to fallthrough annotations

    Convert fall through comments to the pseudo-keyword which is now the
    preferred way.

And the vast majority of places (33 vs. 4) use "/* Fallthrough */ in
the fs directory

On Sat, Aug 8, 2020 at 3:34 AM linmiaohe <linmiaohe@...wei.com> wrote:
>
> From: Miaohe Lin <linmiaohe@...wei.com>
>
> Convert the uses of fallthrough comments to fallthrough macro.
>
> Signed-off-by: Hongxiang Lou <louhongxiang@...wei.com>
> Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
> ---
>  fs/cifs/smb2pdu.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
> index 24c2ac360591..667d70aa335f 100644
> --- a/fs/cifs/smb2pdu.c
> +++ b/fs/cifs/smb2pdu.c
> @@ -3913,7 +3913,7 @@ smb2_readv_callback(struct mid_q_entry *mid)
>         case MID_RESPONSE_MALFORMED:
>                 credits.value = le16_to_cpu(shdr->CreditRequest);
>                 credits.instance = server->reconnect_instance;
> -               /* fall through */
> +               fallthrough;
>         default:
>                 rdata->result = -EIO;
>         }
> @@ -4146,7 +4146,7 @@ smb2_writev_callback(struct mid_q_entry *mid)
>         case MID_RESPONSE_MALFORMED:
>                 credits.value = le16_to_cpu(rsp->sync_hdr.CreditRequest);
>                 credits.instance = server->reconnect_instance;
> -               /* fall through */
> +               fallthrough;
>         default:
>                 wdata->result = -EIO;
>                 break;
> --
> 2.19.1
>


-- 
Thanks,

Steve