netdev - RE: [PATCH net-next 8/9] net: hns3: Add support of debugfs interface to HNS3 driver

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Date:   Sat, 10 Jun 2017 12:51:57 +0000
From:   "Mintz, Yuval" <Yuval.Mintz@...ium.com>
To:     Salil Mehta <salil.mehta@...wei.com>,
        "davem@...emloft.net" <davem@...emloft.net>
CC:     "yisen.zhuang@...wei.com" <yisen.zhuang@...wei.com>,
        "huangdaode@...ilicon.com" <huangdaode@...ilicon.com>,
        "lipeng321@...wei.com" <lipeng321@...wei.com>,
        "mehta.salil.lnk@...il.com" <mehta.salil.lnk@...il.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linuxarm@...wei.com" <linuxarm@...wei.com>
Subject: RE: [PATCH net-next 8/9] net: hns3: Add support of debugfs interface
 to HNS3 driver

> This adds the support of the debugfs interface to the driver for debugging
> purposes.

> +const struct  hclge_support_cmd  support_cmd[] = {
> +	{"send cmd", 8, hclge_dbg_send,
> +		"opcode flag data0 data1 data2 data3 data4 data5"},
> +	{"help", 4, hclge_dbg_usage, "no option"}, };

Is there an actual description of what this does? Or is it simply a huge backdoor?