linux-kernel - [PATCH] zorro: make zorro_bus

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Message-Id: <20240213-bus_cleanup-zorro-v1-1-388ceed8e7bd@marliere.net>
Date: Tue, 13 Feb 2024 11:41:25 -0300
From: "Ricardo B. Marliere" <ricardo@...liere.net>
To: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: linux-m68k@...ts.linux-m68k.org, linux-kernel@...r.kernel.org, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 "Ricardo B. Marliere" <ricardo@...liere.net>
Subject: [PATCH] zorro: make zorro_bus_type const

Since commit d492cc2573a0 ("driver core: device.h: make struct
bus_type a const *"), the driver core can properly handle constant
struct bus_type, move the zorro_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/zorro/zorro-driver.c | 2 +-
 drivers/zorro/zorro.h        | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/zorro/zorro-driver.c b/drivers/zorro/zorro-driver.c
index 025edfccedcf..f49d19977e82 100644
--- a/drivers/zorro/zorro-driver.c
+++ b/drivers/zorro/zorro-driver.c
@@ -150,7 +150,7 @@ static int zorro_uevent(const struct device *dev, struct kobj_uevent_env *env)
 	return 0;
 }

-struct bus_type zorro_bus_type = {
+const struct bus_type zorro_bus_type = {
 	.name		= "zorro",
 	.dev_name	= "zorro",
 	.dev_groups	= zorro_device_attribute_groups,
diff --git a/drivers/zorro/zorro.h b/drivers/zorro/zorro.h
index f84df9fb4c20..df44e35203fd 100644
--- a/drivers/zorro/zorro.h
+++ b/drivers/zorro/zorro.h
@@ -4,7 +4,7 @@
      *  Zorro bus
      */

-extern struct bus_type zorro_bus_type;
+extern const struct bus_type zorro_bus_type;

 #ifdef CONFIG_ZORRO_NAMES

---
base-commit: 6b9c045b0602cf64b33ea6da5e6aa6f81dd47ae8
change-id: 20240213-bus_cleanup-zorro-928b9b12d34d

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