linux-kernel - Re: [PATCH v7 3/3] PM / wakeup: Show wakeup sources stats in sysfs

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Date:   Mon, 05 Aug 2019 14:02:48 -0700
From:   Stephen Boyd <swboyd@...omium.org>
To:     Tri Vo <trong@...roid.com>, gregkh@...uxfoundation.org,
        rjw@...ysocki.net, viresh.kumar@...aro.org
Cc:     rafael@...nel.org, hridya@...gle.com, sspatil@...gle.com,
        kaleshsingh@...gle.com, ravisadineni@...omium.org,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        kernel-team@...roid.com, Tri Vo <trong@...roid.com>
Subject: Re: [PATCH v7 3/3] PM / wakeup: Show wakeup sources stats in sysfs

Quoting Tri Vo (2019-08-05 10:58:48)
> diff --git a/drivers/base/power/wakeup_stats.c b/drivers/base/power/wakeup_stats.c
> new file mode 100644
> index 000000000000..3a4f55028e27
> --- /dev/null
> +++ b/drivers/base/power/wakeup_stats.c
> @@ -0,0 +1,161 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Wakeup statistics in sysfs
> + *
> + * Copyright (c) 2019 Linux Foundation
> + * Copyright (c) 2019 Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> + * Copyright (c) 2019 Google Inc.
> + */
> +
> +#include <linux/idr.h>
> +#include <linux/kdev_t.h>
> +#include <linux/pm_runtime.h>
> +#include <linux/slab.h>

Can you include init.h, device.h, timekeeping.h, and kernel. here? This
file calls functions exported in those headers.

> +
> +#include "power.h"
> +
> +static struct class *wakeup_class;
> +
> +#define wakeup_attr(_name)                                             \
> +static ssize_t _name##_show(struct device *dev,                                \
> +                           struct device_attribute *attr, char *buf)   \
> +{                                                                      \
> +       struct wakeup_source *ws = dev_get_drvdata(dev);                \
> +                                                                       \
> +       return sprintf(buf, "%lu\n", ws->_name);                        \
> +}                                                                      \
> +static DEVICE_ATTR_RO(_name)
> +
> +wakeup_attr(active_count);
> +wakeup_attr(event_count);
> +wakeup_attr(wakeup_count);