linux-kernel - [PATCH] driver: pinctrl: fix unused variable warning

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Message-Id: <1607659581-15764-1-git-send-email-lennychen@tencent.com>
Date:   Fri, 11 Dec 2020 12:06:21 +0800
From:   chenlei0x@...il.com
To:     chenlei0x@...il.com, linus.walleij@...aro.org,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Lei Chen <lennychen@...cent.com>
Subject: [PATCH] driver: pinctrl: fix unused variable warning

From: Lei Chen <lennychen@...cent.com>

In pinctrl_pins_show, range, gpio_num and chip variables are not used if
CONFIG_GPIOLIB is not defined. Use this macro to wrap them.

Signed-off-by: Lei Chen <lennychen@...cent.com>
---
 drivers/pinctrl/core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index 3663d87..9fc4433 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -1602,9 +1602,11 @@ static int pinctrl_pins_show(struct seq_file *s, void *what)
 	struct pinctrl_dev *pctldev = s->private;
 	const struct pinctrl_ops *ops = pctldev->desc->pctlops;
 	unsigned i, pin;
+#ifdef CONFIG_GPIOLIB
 	struct pinctrl_gpio_range *range;
 	unsigned int gpio_num;
 	struct gpio_chip *chip;
+#endif
 
 	seq_printf(s, "registered pins: %d\n", pctldev->desc->npins);
 
-- 
1.8.3.1