netdev - Re: [PATCH RFC v6 2/6] dpll: Add DPLL framework base functions

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Date:   Thu, 16 Mar 2023 13:20:03 +0100
From:   Jiri Pirko <jiri@...nulli.us>
To:     Vadim Fedorenko <vadfed@...a.com>
Cc:     Jakub Kicinski <kuba@...nel.org>,
        Arkadiusz Kubalewski <arkadiusz.kubalewski@...el.com>,
        Jonathan Lemon <jonathan.lemon@...il.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Vadim Fedorenko <vadim.fedorenko@...ux.dev>, poros@...hat.com,
        mschmidt@...hat.com, netdev@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org,
        Milena Olech <milena.olech@...el.com>,
        Michal Michalik <michal.michalik@...el.com>
Subject: Re: [PATCH RFC v6 2/6] dpll: Add DPLL framework base functions

Sun, Mar 12, 2023 at 03:28:03AM CET, vadfed@...a.com wrote:

[...]


>+/**
>+ * dpll_pin_unregister - deregister dpll pin from dpll device
>+ * @dpll: registered dpll pointer
>+ * @pin: pointer to a pin
>+ *
>+ * Note: It does not free the memory
>+ */
>+int dpll_pin_unregister(struct dpll_device *dpll, struct dpll_pin *pin)

Make this return void. Function does not report anything useful,
non-0 is only in case of WARN_ON. Nobody is going to check that ever
anyway.


>+{
>+	if (WARN_ON(xa_empty(&dpll->pin_refs)))
>+		return -ENOENT;
>+
>+	mutex_lock(&dpll_device_xa_lock);
>+	mutex_lock(&dpll_pin_xa_lock);
>+	__dpll_pin_unregister(dpll, pin);
>+	mutex_unlock(&dpll_pin_xa_lock);
>+	mutex_unlock(&dpll_device_xa_lock);
>+
>+	return 0;
>+}
>+EXPORT_SYMBOL_GPL(dpll_pin_unregister);

[...]