On Tue 2015-09-22 10:26:37, Douglas Anderson wrote:
> The printouts writen to the logs by suspend can be a bit opaque: it can
> be hard to track them down to the actual function called. You might
> see:
It seems simple enough.
Acked-by: Pavel Machek <pa...@ucw.cz>
> +static ktime_t initcall_debug_start(struct device *dev, void *cb)
> {
> ktime_t calltime = ktime_set(0, 0);
>
> if (pm_print_times_enabled) {
> - pr_info("calling %s+ @ %i, parent: %s\n",
> + pr_info("calling %s+ @ %i, parent: %s, cb: %pf\n",
> dev_name(dev), task_pid_nr(current),
> - dev->parent ? dev_name(dev->parent) : "none");
> + dev->parent ? dev_name(dev->parent) : "none", cb);
> calltime = ktime_get();
> }
>
> @@ -382,7 +382,7 @@ static int dpm_run_callback(pm_callback_t cb, struct
> device *dev,
> if (!cb)
> return 0;
>
> - calltime = initcall_debug_start(dev);
> + calltime = initcall_debug_start(dev, cb);
>
> pm_dev_dbg(dev, state, info);
> trace_device_pm_callback_start(dev, info, state.event);
> @@ -1324,7 +1324,7 @@ static int legacy_suspend(struct device *dev,
> pm_message_t state,
> int error;
> ktime_t calltime;
>
> - calltime = initcall_debug_start(dev);
> + calltime = initcall_debug_start(dev, cb);
>
> trace_device_pm_callback_start(dev, info, state.event);
> error = cb(dev, state);
> --
> 2.6.0.rc0.131.gf624c3d
--
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http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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