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From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
To: Kees Cook <kees@kernel.org>,
	"Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: Lukasz Majczak <lma@chromium.org>,
	Wim Van Sebroeck <wim@linux-watchdog.org>,
	Guenter Roeck <linux@roeck-us.net>,
	Benson Leung <bleung@chromium.org>,
	Tzung-Bi Shih <tzungbi@kernel.org>,
	chrome-platform@lists.linux.dev, linux-watchdog@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org
Subject: Re: [PATCH v2][next] watchdog: cros-ec: Avoid -Wflex-array-member-not-at-end warning
Date: Mon, 7 Apr 2025 13:42:07 -0600	[thread overview]
Message-ID: <e8114ca6-d092-482b-9d6b-db7ea1c15cbc@embeddedor.com> (raw)
In-Reply-To: <202504071212.D6CBE6740C@keescook>


> 
>> +	msg->command = EC_CMD_HANG_DETECT;
>> +	msg->insize  = (arg->req.command == EC_HANG_DETECT_CMD_GET_STATUS) ?
>> +		   sizeof(struct ec_response_hang_detect) :
>> +		   0;
>> +	msg->outsize = sizeof(struct ec_params_hang_detect);
>> +	*(struct ec_params_hang_detect *)msg->data = arg->req;
>> +
>> +	ret = cros_ec_cmd_xfer_status(cros_ec, msg);
>>   	if (ret < 0)
>>   		return ret;
>>   
>> -	arg->resp = buf.data.resp;
>> +	arg->resp = *(struct ec_response_hang_detect *)msg->data;
> 
> msg->data used twice and a "sizeof()" earlier... might be nicer to have
> an explicit pointer?

Those are two different pointers:

*(struct ec_params_hang_detect *)msg->data = arg->req;
arg->resp = *(struct ec_response_hang_detect *)msg->data;

--
Gustavo

  reply	other threads:[~2025-04-07 19:42 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-27 17:12 [PATCH v2][next] watchdog: cros-ec: Avoid -Wflex-array-member-not-at-end warning Gustavo A. R. Silva
2025-03-28  4:41 ` Guenter Roeck
2025-04-07 19:13 ` Kees Cook
2025-04-07 19:42   ` Gustavo A. R. Silva [this message]
2025-04-07 20:36     ` Kees Cook
2025-04-16  0:24 ` Gustavo A. R. Silva

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