linux-kernel - Re: [PATCH 4/4] dmaengine: Add debugfs entries for PTDMA information

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Date:   Tue, 24 Sep 2019 10:05:03 +0200
From:   "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
To:     "Mehta, Sanju" <Sanju.Mehta@....com>
Cc:     "S-k, Shyam-sundar" <Shyam-sundar.S-k@....com>,
        "Shah, Nehal-bakulchandra" <Nehal-bakulchandra.Shah@....com>,
        "Kumar, Rajesh" <Rajesh1.Kumar@....com>,
        "vkoul@...nel.org" <vkoul@...nel.org>,
        "mchehab+samsung@...nel.org" <mchehab+samsung@...nel.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "robh@...nel.org" <robh@...nel.org>,
        "linus.walleij@...aro.org" <linus.walleij@...aro.org>,
        "nicolas.ferre@...rochip.com" <nicolas.ferre@...rochip.com>,
        "dan.j.williams@...el.com" <dan.j.williams@...el.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>
Subject: Re: [PATCH 4/4] dmaengine: Add debugfs entries for PTDMA information

On Tue, Sep 24, 2019 at 07:33:02AM +0000, Mehta, Sanju wrote:
> +static const struct file_operations pt_debugfs_info_ops = {
> +	.owner = THIS_MODULE,
> +	.open = simple_open,
> +	.read = ptdma_debugfs_info_read,
> +	.write = NULL,
> +};
> +
> +static const struct file_operations pt_debugfs_queue_ops = {
> +	.owner = THIS_MODULE,
> +	.open = simple_open,
> +	.read = ptdma_debugfs_queue_read,
> +	.write = ptdma_debugfs_queue_write,
> +};
> +
> +static const struct file_operations pt_debugfs_stats_ops = {
> +	.owner = THIS_MODULE,
> +	.open = simple_open,
> +	.read = ptdma_debugfs_stats_read,
> +	.write = ptdma_debugfs_stats_write,
> +};

Can you use DEFINE_SIMPLE_ATTRIBUTE() here intead of these?

thanks,

greg k-h