linux-kernel - Re: [PATCH] watchdog: qcom: Add suspend/resume support

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Date:   Thu, 17 Jan 2019 04:31:13 -0500
From:   Brian Masney <masneyb@...tation.org>
To:     Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>
Cc:     Guenter Roeck <linux@...ck-us.net>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        linux-watchdog@...r.kernel.org,
        Guenter Roeck <groeck@...omium.org>,
        Rajendra Nayak <rnayak@...eaurora.org>,
        Vivek Gautam <vivek.gautam@...eaurora.org>,
        Sibi Sankar <sibis@...eaurora.org>,
        Stephen Boyd <sboyd@...nel.org>,
        Doug Anderson <dianders@...omium.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH] watchdog: qcom: Add suspend/resume support

On Thu, Jan 17, 2019 at 02:45:55PM +0530, Sai Prakash Ranjan wrote:
> +#ifdef CONFIG_PM_SLEEP
> +static int qcom_wdt_suspend(struct device *dev)
> +{
> +	struct qcom_wdt *wdt = dev_get_drvdata(dev);
> +
> +	if (watchdog_active(&wdt->wdd))
> +		qcom_wdt_stop(&wdt->wdd);
> +
> +	return 0;
> +}
> +
> +static int qcom_wdt_resume(struct device *dev)
> +{
> +	struct qcom_wdt *wdt = dev_get_drvdata(dev);
> +
> +	if (watchdog_active(&wdt->wdd))
> +		qcom_wdt_start(&wdt->wdd);
> +
> +	return 0;
> +}
> +#endif /* CONFIG_PM_SLEEP */

You can use the __maybe_unused attribute to remove the #ifdef:

static int __maybe_unused qcom_wdt_suspend(struct device *dev)

Brian