linux-kernel - Re: [thermal-next PATCH v2 2/2] thermal: qcom: tsens: simplify debugfs init function

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Message-ID: <6fe0749e-e0e1-6094-e000-7b12f6c7b71d@linaro.org>
Date:   Mon, 10 May 2021 08:44:46 -0400
From:   Thara Gopinath <thara.gopinath@...aro.org>
To:     Ansuel Smith <ansuelsmth@...il.com>
Cc:     Amit Kucheria <amitk@...nel.org>, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        linux-pm@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [thermal-next PATCH v2 2/2] thermal: qcom: tsens: simplify
 debugfs init function



On 4/28/21 9:05 PM, Ansuel Smith wrote:
> Simplify debugfs init function.
> - Add check for existing dev directory.
> - Fix wrong version in dbg_version_show (with version 0.0.0, 0.1.0 was
>    incorrectly reported)
> 
> Signed-off-by: Ansuel Smith <ansuelsmth@...il.com>

Acked-by: Thara Gopinath <thara.gopinath@...aro.org>

Warm Regards
Thara

> ---
>   drivers/thermal/qcom/tsens.c | 12 ++++--------
>   1 file changed, 4 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c
> index b37d5fd71f3a..e43898bf3199 100644
> --- a/drivers/thermal/qcom/tsens.c
> +++ b/drivers/thermal/qcom/tsens.c
> @@ -657,7 +657,7 @@ static int dbg_version_show(struct seq_file *s, void *data)
>   			return ret;
>   		seq_printf(s, "%d.%d.%d\n", maj_ver, min_ver, step_ver);
>   	} else {
> -		seq_puts(s, "0.1.0\n");
> +		seq_printf(s, "0.%d.0\n", priv->feat->ver_major);
>   	}
>   
>   	return 0;
> @@ -669,16 +669,12 @@ DEFINE_SHOW_ATTRIBUTE(dbg_sensors);
>   static void tsens_debug_init(struct platform_device *pdev)
>   {
>   	struct tsens_priv *priv = platform_get_drvdata(pdev);
> -	struct dentry *root, *file;
>   
> -	root = debugfs_lookup("tsens", NULL);
> -	if (!root)
> +	priv->debug_root = debugfs_lookup("tsens", NULL);
> +	if (!priv->debug_root)
>   		priv->debug_root = debugfs_create_dir("tsens", NULL);
> -	else
> -		priv->debug_root = root;
>   
> -	file = debugfs_lookup("version", priv->debug_root);
> -	if (!file)
> +	if (!debugfs_lookup("version", priv->debug_root))
>   		debugfs_create_file("version", 0444, priv->debug_root,
>   				    pdev, &dbg_version_fops);
>   
>