linux-kernel - Re: [PATCH net-next v5 09/10] ethtool: Add ability to flash transceiver modules' firmware

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]

Date: Mon, 29 Apr 2024 20:22:37 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Danielle Ratson <danieller@...dia.com>
Cc: <netdev@...r.kernel.org>, <davem@...emloft.net>, <edumazet@...gle.com>,
 <pabeni@...hat.com>, <corbet@....net>, <linux@...linux.org.uk>,
 <sdf@...gle.com>, <kory.maincent@...tlin.com>,
 <maxime.chevallier@...tlin.com>, <vladimir.oltean@....com>,
 <przemyslaw.kitszel@...el.com>, <ahmed.zaki@...el.com>,
 <richardcochran@...il.com>, <shayagr@...zon.com>,
 <paul.greenwalt@...el.com>, <jiri@...nulli.us>,
 <linux-doc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
 <mlxsw@...dia.com>, <petrm@...dia.com>, <idosch@...dia.com>
Subject: Re: [PATCH net-next v5 09/10] ethtool: Add ability to flash
 transceiver modules' firmware

On Wed, 24 Apr 2024 16:30:22 +0300 Danielle Ratson wrote:
> +static int
> +module_flash_fw_schedule(struct net_device *dev, const char *file_name,
> +			 struct ethtool_module_fw_flash_params *params,
> +			 struct netlink_ext_ack *extack)
> +{
> +	struct ethtool_module_fw_flash *module_fw;
> +	int err;
> +
> +	err = __module_flash_fw_schedule(dev, extack);
> +	if (err < 0)
> +		return err;

Basic dev validation should probably be called directly from
ethnl_act_module_fw_flash() rather than two functions down.

> +	module_fw = kzalloc(sizeof(*module_fw), GFP_KERNEL);
> +	if (!module_fw)
> +		return -ENOMEM;
> +
> +	module_fw->params = *params;
> +	err = request_firmware_direct(&module_fw->fw, file_name, &dev->dev);
> +	if (err) {
> +		NL_SET_ERR_MSG(extack,
> +			       "Failed to request module firmware image");
> +		goto err_request_firmware;

Please name the labels after the actions they perform.

> +	}
> +
> +	err = module_flash_fw_work_init(module_fw, dev, extack);
> +	if (err < 0) {
> +		NL_SET_ERR_MSG(extack,
> +			       "Flashing module firmware is not supported by this device");

This overwrites the more accurate extack msg already set by
module_flash_fw_work_init()

> +		goto err_work_init;
> +	}