linux-kernel - [PATCH v2 1/3] Staging: greybus: Use inline function for macro gpio_chip_to_gb_gpio

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Message-Id: <215538f49cca6be05f846704e2ca15cd10144207.1679642024.git.sumitraartsy@gmail.com>
Date:   Fri, 24 Mar 2023 00:29:54 -0700
From:   Sumitra Sharma <sumitraartsy@...il.com>
To:     outreachy@...ts.linux.dev
Cc:     johan@...nel.org, elder@...nel.org, gregkh@...uxfoundation.org,
        greybus-dev@...ts.linaro.org, linux-staging@...ts.linux.dev,
        linux-kernel@...r.kernel.org,
        Sumitra Sharma <sumitraartsy@...il.com>
Subject: [PATCH v2 1/3] Staging: greybus: Use inline function for macro gpio_chip_to_gb_gpio_controller

Convert 'gpio_chip_to_gb_gpio_controller' from a macro to a static
inline function, to make the relevant types apparent in the
definition and to benefit from the type checking performed by
the compiler at call sites.

Signed-off-by: Sumitra Sharma <sumitraartsy@...il.com>
---
v2: Change patch subject, noted by Alison Schofield 
<alison.schofield@...el.com>

 drivers/staging/greybus/gpio.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/greybus/gpio.c b/drivers/staging/greybus/gpio.c
index d729b922a750..2a115a8fc263 100644
--- a/drivers/staging/greybus/gpio.c
+++ b/drivers/staging/greybus/gpio.c
@@ -41,8 +41,11 @@ struct gb_gpio_controller {
 	struct irq_chip		irqc;
 	struct mutex		irq_lock;
 };
-#define gpio_chip_to_gb_gpio_controller(chip) \
-	container_of(chip, struct gb_gpio_controller, chip)
+
+static inline struct gb_gpio_controller *gpio_chip_to_gb_gpio_controller(struct gpio_chip *chip)
+{
+	return container_of(chip, struct gb_gpio_controller, chip);
+}
 
 static struct gpio_chip *irq_data_to_gpio_chip(struct irq_data *d)
 {
-- 
2.25.1