linux-kernel - Re: [PATCH] pinctrl: sp7021: fix unused function warning

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Message-ID: <CACRpkdaUXkUCcP9oWq-Esp0A2ay=QoUuSfgUMYvKbjDehW_UsQ@mail.gmail.com>
Date:   Thu, 29 Dec 2022 02:09:11 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     Dvorkin Dmitry <dvorkin@...bo.com>, Wells Lu <wellslutw@...il.com>,
        Arnd Bergmann <arnd@...db.de>,
        William Dean <williamsukatube@...il.com>,
        linux-arm-kernel@...ts.infradead.org, linux-gpio@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] pinctrl: sp7021: fix unused function warning

On Thu, Dec 15, 2022 at 5:38 PM Arnd Bergmann <arnd@...nel.org> wrote:

> From: Arnd Bergmann <arnd@...db.de>
>
> sppctl_gpio_inv_get is only used from the debugfs code inside
> of an #ifdef, so we get a warning without that:
>
> drivers/pinctrl/sunplus/sppctl.c:393:12: error: 'sppctl_gpio_inv_get' defined but not used [-Werror=unused-function]
>   393 | static int sppctl_gpio_inv_get(struct gpio_chip *chip, unsigned int offset)
>       |            ^~~~~~~~~~~~~~~~~~~
>
> Replace the #ifdef with an IS_ENABLED() check that avoids the warning.
>
> Fixes: aa74c44be19c ("pinctrl: Add driver for Sunplus SP7021")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Patch applied!

Yours,
Linus Walleij