linux-kernel - [PATCH] gpiolib: remove leftover spinlock bits

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Message-ID: <20241024191532.78304-1-brgl@bgdev.pl>
Date: Thu, 24 Oct 2024 21:15:32 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Linus Walleij <linus.walleij@...aro.org>
Cc: linux-gpio@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH] gpiolib: remove leftover spinlock bits

From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>

We no longer use any spinlocks in gpiolib.c. Stop including
linux/spinlock.h and remove an outdated comment.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
---
 drivers/gpio/gpiolib.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index ae758ba6dc3d..fa68ff574d10 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -24,7 +24,6 @@
 #include <linux/pinctrl/consumer.h>
 #include <linux/seq_file.h>
 #include <linux/slab.h>
-#include <linux/spinlock.h>
 #include <linux/srcu.h>
 #include <linux/string.h>
 
@@ -1223,11 +1222,6 @@ struct gpio_device *gpio_device_find(const void *data,
 	struct gpio_device *gdev;
 	struct gpio_chip *gc;
 
-	/*
-	 * Not yet but in the future the spinlock below will become a mutex.
-	 * Annotate this function before anyone tries to use it in interrupt
-	 * context like it happened with gpiochip_find().
-	 */
 	might_sleep();
 
 	guard(srcu)(&gpio_devices_srcu);
-- 
2.45.2