From: Jes Sorensen <jes.sorensen@gmail.com>
To: Kees Cook <keescook@chromium.org>, Kalle Valo <kvalo@codeaurora.org>
Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org
Subject: Re: [PATCH RESEND][next] rtl8xxxu: Fix fall-through warnings for Clang
Date: Wed, 10 Mar 2021 14:31:57 -0500 [thread overview]
Message-ID: <2e425bd8-2722-b8a8-3745-4a3f77771906@gmail.com> (raw)
In-Reply-To: <202103101107.BE8B6AF2@keescook>
On 3/10/21 2:14 PM, Kees Cook wrote:
> On Fri, Mar 05, 2021 at 03:40:33PM +0200, Kalle Valo wrote:
>> "Gustavo A. R. Silva" <gustavoars@kernel.org> writes:
>>
>>> In preparation to enable -Wimplicit-fallthrough for Clang, fix
>>> multiple warnings by replacing /* fall through */ comments with
>>> the new pseudo-keyword macro fallthrough; instead of letting the
>>> code fall through to the next case.
>>>
>>> Notice that Clang doesn't recognize /* fall through */ comments as
>>> implicit fall-through markings.
>>>
>>> Link: https://github.com/KSPP/linux/issues/115
>>> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
>>
>> It's not cool that you ignore the comments you got in [1], then after a
>> while mark the patch as "RESEND" and not even include a changelog why it
>> was resent.
>>
>> [1] https://patchwork.kernel.org/project/linux-wireless/patch/d522f387b2d0dde774785c7169c1f25aa529989d.1605896060.git.gustavoars@kernel.org/
>
> Hm, this conversation looks like a miscommunication, mainly? I see
> Gustavo, as requested by many others[1], replacing the fallthrough
> comments with the "fallthrough" statement. (This is more than just a
> "Clang doesn't parse comments" issue.)
>
> This could be a tree-wide patch and not bother you, but Greg KH has
> generally advised us to send these changes broken out. Anyway, this
> change still needs to land, so what would be the preferred path? I think
> Gustavo could just carry it for Linus to merge without bothering you if
> that'd be preferred?
I'll respond with the same I did last time, fallthrough is not C and
it's ugly.
Instead of mutilating the kernel, Gustavo should invest in fixing the
broken clang compiler.
Thanks,
Jes
next prev parent reply other threads:[~2021-03-10 19:32 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-05 9:48 [PATCH RESEND][next] rtl8xxxu: Fix fall-through warnings for Clang Gustavo A. R. Silva
2021-03-05 13:40 ` Kalle Valo
2021-03-05 16:49 ` Gustavo A. R. Silva
2021-03-10 19:14 ` Kees Cook
2021-03-10 19:31 ` Jes Sorensen [this message]
2021-03-10 19:45 ` Kees Cook
2021-03-10 19:51 ` Jes Sorensen
2021-03-10 20:59 ` Kees Cook
2021-04-17 18:29 ` Jes Sorensen
2021-04-17 19:24 ` Gustavo A. R. Silva
2021-04-19 11:58 ` Jes Sorensen
2021-03-11 7:00 ` Kalle Valo
2021-03-11 7:16 ` Gustavo A. R. Silva
2021-04-17 17:52 ` Kalle Valo
[not found] ` <20210417175201.2D5A7C433F1@smtp.codeaurora.org>
2021-04-17 18:30 ` Jes Sorensen
2021-04-18 0:09 ` Joe Perches
2021-04-19 11:56 ` Jes Sorensen
[not found] ` <20210417175201.280F9C4338A@smtp.codeaurora.org>
2021-04-19 22:58 ` Gustavo A. R. Silva
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