linux-kernel - Re: [RFC v2 1/3] PM: Add a sysfs files to represent sleep duration

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Date:   Mon, 14 Nov 2022 08:12:42 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Mario Limonciello <mario.limonciello@....com>
Cc:     Sven van Ashbrook <svenva@...omium.org>,
        Rafael J Wysocki <rafael@...nel.org>,
        linux-pm@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        Pavel Machek <pavel@....cz>, Len Brown <len.brown@...el.com>,
        John Stultz <jstultz@...gle.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Stephen Boyd <sboyd@...nel.org>,
        Rajneesh Bhardwaj <irenic.rajneesh@...il.com>,
        S-k Shyam-sundar <Shyam-sundar.S-k@....com>,
        rrangel@...omium.org, Rajat Jain <rajatja@...gle.com>,
        David E Box <david.e.box@...el.com>,
        Hans de Goede <hdegoede@...hat.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [RFC v2 1/3] PM: Add a sysfs files to represent sleep duration

On Thu, Nov 10, 2022 at 12:47:21AM -0600, Mario Limonciello wrote:
> +static ssize_t last_hw_state_residency_show(struct kobject *kobj,
> +		struct kobj_attribute *attr, char *buf)
> +{
> +	return sprintf(buf, "%llu\n", suspend_stats.last_hw_state_residency);

sysfs_emit() please for sysfs files, not a "raw" sprintf().
checkpatch.pl should have caught that for you, but sometimes it doesn't.

thanks,

greg k-h