linux-kernel - Re: [RFC] rtc: Avoid a couple of -Wflex-array-member-not-at-end warnings

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Message-ID: <63d0cca7-b095-4762-8ec4-5004e5c6bad1@embeddedor.com>
Date: Fri, 14 Mar 2025 11:17:45 +1030
From: "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To: Tzung-Bi Shih <tzungbi@...nel.org>,
 "Gustavo A. R. Silva" <gustavoars@...nel.org>
Cc: Alexandre Belloni <alexandre.belloni@...tlin.com>,
 Benson Leung <bleung@...omium.org>, Guenter Roeck <groeck@...omium.org>,
 linux-rtc@...r.kernel.org, chrome-platform@...ts.linux.dev,
 linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [RFC] rtc: Avoid a couple of -Wflex-array-member-not-at-end
 warnings

> I'm not a big fan of the solution.  How about using something similar to:
> 
> struct cros_ec_command *msg = kzalloc(sizeof(*msg) +
>                                        sizeof(struct ec_response_rtc), ...);
> 

Thanks for the feedback. :) We can actually use DEFINE_RAW_FLEX():

https://lore.kernel.org/linux-hardening/Z9N8BsVJF-s6Hcvd@kspp/

--
Gustavo