linux-kernel - Re: [RFC 02/11] drivers: Add HTE subsystem

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Message-ID: <60f42b1b-309a-52b2-3090-722a3b7360ac@nvidia.com>
Date:   Tue, 27 Jul 2021 17:34:17 -0700
From:   Dipen Patel <dipenp@...dia.com>
To:     Greg KH <gregkh@...uxfoundation.org>
CC:     <thierry.reding@...il.com>, <jonathanh@...dia.com>,
        <linux-kernel@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        <linux-gpio@...r.kernel.org>, <linus.walleij@...aro.org>,
        <bgolaszewski@...libre.com>, <warthog618@...il.com>,
        <devicetree@...r.kernel.org>, <linux-doc@...r.kernel.org>,
        <robh+dt@...nel.org>
Subject: Re: [RFC 02/11] drivers: Add HTE subsystem

Thanks Greg for the review comments. I will address all in next RFC version2.

Best Regards,

Dipen Patel

On 7/5/21 12:30 AM, Greg KH wrote:
> On Fri, Jun 25, 2021 at 04:55:23PM -0700, Dipen Patel wrote:
>> +static void hte_chip_dbgfs_init(struct hte_device *gdev)
>> +{
>> +	const struct hte_chip *chip = gdev->chip;
>> +	const char *name = chip->name ? chip->name : dev_name(chip->dev);
>> +
>> +	gdev->dbg_root = debugfs_create_dir(name, hte_root);
>> +	if (!gdev->dbg_root)
>> +		return;
> No need to check for this, if it fails, your other debugfs calls
> will handle it just fine.
>
>
>> +
>> +	debugfs_create_atomic_t("ts_requested", 0444, gdev->dbg_root,
>> +				&gdev->ts_req);
>> +	debugfs_create_u32("total_ts", 0444, gdev->dbg_root,
>> +			   &gdev->nlines);
>> +}
>> +
>> +static void hte_ts_dbgfs_init(const char *name, struct hte_ts_info *ei)
>> +{
>> +	if (!ei->gdev->dbg_root || !name)
>> +		return;
>> +
>> +	ei->ts_dbg_root = debugfs_create_dir(name, ei->gdev->dbg_root);
>> +	if (!ei->ts_dbg_root)
>> +		return;
> Again, no need to check.
>
>> +
>> +	debugfs_create_size_t("ts_buffer_depth", 0444, ei->ts_dbg_root,
>> +			      &ei->buf->datum_len);
>> +	debugfs_create_size_t("ts_buffer_watermark", 0444, ei->ts_dbg_root,
>> +			      &ei->buf->watermark);
>> +	debugfs_create_atomic_t("dropped_timestamps", 0444, ei->ts_dbg_root,
>> +				&ei->dropped_ts);
>> +}
>> +
>> +static inline void hte_dbgfs_deinit(struct dentry *root)
>> +{
>> +	if (!root)
>> +		return;
> No need to check this.
>
>> +
>> +	debugfs_remove_recursive(root);
> Do not wrap a single call with another call :)
>
>
> thanks,
>
> greg k-h