linux-hardening - Re: [PATCH][next] mwifiex: Fix fall-through warnings for Clang

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Message-ID: <b9989e7d048765111826d1df549a364485ea546f.camel@perches.com>
Date:   Tue, 17 Nov 2020 08:15:59 -0800
From:   Joe Perches <joe@...ches.com>
To:     "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Amitkumar Karwar <amitkarwar@...il.com>,
        Ganapathi Bhat <ganapathi.bhat@....com>,
        Xinming Hu <huxinming820@...il.com>,
        Kalle Valo <kvalo@...eaurora.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH][next] mwifiex: Fix fall-through warnings for Clang

On Tue, 2020-11-17 at 10:09 -0600, Gustavo A. R. Silva wrote:
> In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple
> warnings by explicitly adding multiple break statements instead of
> letting the code fall through to the next case.

Thanks Gustavo.

I think this is better style than the gcc allowed
undescribed fallthrough to break;

gcc developers disagree though:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91432