netdev - RE: [RFC PATCH v9 03/10] dpll: core: Add DPLL framework base functions

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Date: Mon, 10 Jul 2023 09:50:48 +0000
From: "Kubalewski, Arkadiusz" <arkadiusz.kubalewski@...el.com>
To: Jiri Pirko <jiri@...nulli.us>
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Subject: RE: [RFC PATCH v9 03/10] dpll: core: Add DPLL framework base
 functions

>From: Jiri Pirko <jiri@...nulli.us>
>Sent: Thursday, June 29, 2023 10:14 AM
>
>Fri, Jun 23, 2023 at 02:38:13PM CEST, arkadiusz.kubalewski@...el.com wrote:
>>From: Vadim Fedorenko <vadim.fedorenko@...ux.dev>
>>
>
>One thing I forgot to point out the last time:
>
>[...]
>
>>+int
>>+dpll_pin_register(struct dpll_device *dpll, struct dpll_pin *pin,
>>+		  const struct dpll_pin_ops *ops, void *priv)
>>+{
>>+	int ret;
>>+
>>+	if (WARN_ON(!ops) ||
>>+	    WARN_ON(!ops->state_on_dpll_get) ||
>>+	    WARN_ON(!ops->direction_get))
>
>Please add check that you don't register to dpll instance which is
>unregistered. Similar check needs to be added to pin_on_pin register.
>
>Also, make sure you don't unregister dpll device/pin which has child
>pins registered under it.
>

Fixed for v10.

Thank you!
Arkadiusz

>
>>+		return -EINVAL;
>>+
>>+	mutex_lock(&dpll_lock);
>>+	if (WARN_ON(!(dpll->module == pin->module &&
>>+		      dpll->clock_id == pin->clock_id)))
>>+		ret = -EINVAL;
>>+	else
>>+		ret = __dpll_pin_register(dpll, pin, ops, priv);
>>+	mutex_unlock(&dpll_lock);
>>+
>>+	return ret;
>>+}
>
>[...]