linux-kernel - Re: [PATCH v16, 2/2] net: Add dm9051 driver

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Message-ID: <YfbajbH86Q/enthp@unreal>
Date:   Sun, 30 Jan 2022 20:35:57 +0200
From:   Leon Romanovsky <leon@...nel.org>
To:     Joseph CHAMG <josright123@...il.com>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Rob Herring <robh+dt@...nel.org>, joseph_chang@...icom.com.tw,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, andy.shevchenko@...il.com,
        andrew@...n.ch
Subject: Re: [PATCH v16, 2/2] net: Add dm9051 driver

On Sun, Jan 30, 2022 at 12:43:46AM +0800, Joseph CHAMG wrote:
> Add davicom dm9051 spi ethernet driver, The driver work for the
> device platform which has the spi master
> 
> Signed-off-by: Joseph CHAMG <josright123@...il.com>
> ---
> Cc: Jakub Kicinski <kuba@...nel.org>
> Cc: Andrew Lunn <andrew@...n.ch>
> Cc: Leon Romanovsky <leon@...nel.org>
> Cc: andy Shevchenko <andy.shevchenko@...il.com>

<...>

> +static int dm9051_probe(struct spi_device *spi)
> +{
> +	struct device *dev = &spi->dev;
> +	struct net_device *ndev;
> +	struct board_info *db;
> +	int ret = 0;

<...>

> +	kthread_init_worker(&db->kw);
> +	kthread_init_work(&db->kw_rxctrl, dm9051_rxctl_delay);
> +	kthread_init_work(&db->kw_tx, dm9051_tx_delay);
> +
> +	db->kwr_task_kw = kthread_run(kthread_worker_fn, &db->kw, "dm9051");

It is very unlikely that simple driver like this will need kthreads, does it really need?

Thanks