linux-kernel - [PATCH] w1: make w1_bus

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Message-Id: <20240204-bus_cleanup-w1-v1-1-a0f4c84d7db3@marliere.net>
Date: Sun, 04 Feb 2024 17:55:22 -0300
From: "Ricardo B. Marliere" <ricardo@...liere.net>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: linux-kernel@...r.kernel.org, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 "Ricardo B. Marliere" <ricardo@...liere.net>
Subject: [PATCH] w1: make w1_bus_type const

Now that the driver core can properly handle constant struct bus_type,
move the w1_bus_type variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@...liere.net>
---
 drivers/w1/w1.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c
index 5353cbd75126..afb1cc4606c5 100644
--- a/drivers/w1/w1.c
+++ b/drivers/w1/w1.c
@@ -167,7 +167,7 @@ static struct w1_family w1_default_family = {

 static int w1_uevent(const struct device *dev, struct kobj_uevent_env *env);

-static struct bus_type w1_bus_type = {
+static const struct bus_type w1_bus_type = {
 	.name = "w1",
 	.uevent = w1_uevent,
 };

---
base-commit: 41b9fb381a486360b2daaec0c7480f8e3ff72bc7
change-id: 20240204-bus_cleanup-w1-e46a15c8237f

Best regards,
-- 
Ricardo B. Marliere <ricardo@...liere.net>