linux-kernel - Re: [PATCH v5 net-next] net: hyperv: Add attributes to show TX indirection table

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Message-ID: <20200720214557.0b711a3c@hermes.lan>
Date:   Mon, 20 Jul 2020 21:45:57 -0700
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     Chi Song <Song.Chi@...rosoft.com>
Cc:     David Miller <davem@...emloft.net>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        KY Srinivasan <kys@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        "wei.liu@...nel.org" <wei.liu@...nel.org>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5 net-next] net: hyperv: Add attributes to show TX
 indirection table

On Tue, 21 Jul 2020 03:50:00 +0000
Chi Song <Song.Chi@...rosoft.com> wrote:

> +static void netvsc_attrs_init(void)
> +{
> +	char buffer[4];
> +	int i;
> +
> +	for (i = 0; i < VRSS_SEND_TAB_SIZE; i++) {
> +		sprintf(buffer, "%02u", i);
> +		dev_attr_netvsc_dev_attrs[i].attr.name =
> +			kstrdup(buffer, GFP_KERNEL);
> +		dev_attr_netvsc_dev_attrs[i].attr.mode = 0444;
> +		sysfs_attr_init(&dev_attr_netvsc_dev_attrs[i].attr);
> +
> +		dev_attr_netvsc_dev_attrs[i].show = tx_indirection_show;
> +		dev_attr_netvsc_dev_attrs[i].store = NULL;
> +		netvsc_dev_attrs[i] = &dev_attr_netvsc_dev_attrs[i].attr;
> +	}
> +	netvsc_dev_attrs[VRSS_SEND_TAB_SIZE] = NULL;
You know that last line is unnecessary. The variable is static and 
starts out as all zero.

Overall looks good.

Acked-by: Stephen Hemminger <stephen@...workplumber.org>