linux-kernel - Re: [PATCH net-next] xen-netfront: mark expected switch fall-through

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20190416.210320.978265746268686181.davem@davemloft.net>
Date:   Tue, 16 Apr 2019 21:03:20 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     gustavo@...eddedor.com
Cc:     boris.ostrovsky@...cle.com, jgross@...e.com,
        sstabellini@...nel.org, xen-devel@...ts.xenproject.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        keescook@...omium.org
Subject: Re: [PATCH net-next] xen-netfront: mark expected switch
 fall-through

From: "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Date: Mon, 15 Apr 2019 16:11:41 -0500

> In preparation to enabling -Wimplicit-fallthrough, mark switch
> cases where we are expecting to fall through.
> 
> This patch fixes the following warning:
> 
> drivers/net/xen-netfront.c: In function ‘netback_changed’:
> drivers/net/xen-netfront.c:2038:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
>    if (dev->state == XenbusStateClosed)
>       ^
> drivers/net/xen-netfront.c:2041:2: note: here
>   case XenbusStateClosing:
>   ^~~~
> 
> Warning level 3 was used: -Wimplicit-fallthrough=3
> 
> Notice that, in this particular case, the code comment is modified
> in accordance with what GCC is expecting to find.
> 
> This patch is part of the ongoing efforts to enable
> -Wimplicit-fallthrough.
> 
> Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>

Applied.