linux-kernel - Re: [RFC PATCH v3] drivercore: Add driver probe deferral mechanism

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Date:	Thu, 22 Sep 2011 11:58:49 -0700
From:	Joe Perches <joe@...ches.com>
To:	Grant Likely <grant.likely@...retlab.ca>
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Greg Kroah-Hartman <greg@...ah.com>,
	Dilan Lee <dilee@...dia.com>,
	Manjunath GKondaiah <manjunath.gkondaiah@...aro.org>,
	Arnd Bergmann <arnd@...db.de>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: Re: [RFC PATCH v3] drivercore: Add driver probe deferral mechanism

On Thu, 2011-09-22 at 12:51 -0600, Grant Likely wrote:
> Allow drivers to report at probe time that they cannot get all the resources
> required by the device, and should be retried at a later time.
[]
> I would appreciate
> any feedback.

trivia:

> diff --git a/drivers/base/dd.c b/drivers/base/dd.c
[]
> +static void driver_deferred_probe_add(struct device *dev)
> +{
> +	mutex_lock(&deferred_probe_mutex);
> +	if (list_empty(&dev->deferred_probe)) {
> +		dev_dbg(dev, "Added to deferred list\n");

These messages might be more intelligible as
"Added to deferred probe list\n"

> +void driver_deferred_probe_del(struct device *dev)
> +{
> +	mutex_lock(&deferred_probe_mutex);
> +	if (!list_empty(&dev->deferred_probe)) {
> +		dev_dbg(dev, "Removed from deferred list\n");

"Removed from deferred probe list\n"


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