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Date:   Mon, 11 Feb 2019 02:50:24 -0700
From:   "Jan Beulich" <JBeulich@...e.com>
To:     "Gustavo A.R.Silva" <gustavo@...eddedor.com>
Cc:     "Paul Durrant" <paul.durrant@...rix.com>,
        "Wei Liu" <wei.liu2@...rix.com>, <davem@...emloft.net>,
        "xen-devel" <xen-devel@...ts.xenproject.org>,
        <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>
Subject: Re: [Xen-devel] [PATCH net-next] xen-netback: mark expected
 switch fall-through

>>> On 08.02.19 at 20:58, <gustavo@...eddedor.com> wrote:
> In preparation to enabling -Wimplicit-fallthrough, mark switch
> cases where we are expecting to fall through.
> 
> Warning level 3 was used: -Wimplicit-fallthrough=3
> 
> This patch is part of the ongoing efforts to enabling
> -Wimplicit-fallthrough.
> 
> Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
> ---
>  drivers/net/xen-netback/xenbus.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/xen-netback/xenbus.c 
> b/drivers/net/xen-netback/xenbus.c
> index 2625740bdc4a..330ddb64930f 100644
> --- a/drivers/net/xen-netback/xenbus.c
> +++ b/drivers/net/xen-netback/xenbus.c
> @@ -655,7 +655,7 @@ static void frontend_changed(struct xenbus_device *dev,
>  		set_backend_state(be, XenbusStateClosed);
>  		if (xenbus_dev_is_online(dev))
>  			break;
> -		/* fall through if not online */
> +		/* fall through - if not online */
>  	case XenbusStateUnknown:

Considering the fall-through was already annotated, I don't think
title and description really justify the change. Is the compiler after
a particular wording here?

Jan


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