linux-kernel - [PATCH 2/4] powerpc: ps3: make ps3_system_bus

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Message-Id: <20240204-bus_cleanup-powerpc-v1-2-c763f0e142e9@marliere.net>
Date: Sun, 04 Feb 2024 11:21:56 -0300
From: "Ricardo B. Marliere" <ricardo@...liere.net>
To: Arnd Bergmann <arnd@...db.de>, Michael Ellerman <mpe@...erman.id.au>, 
 Nicholas Piggin <npiggin@...il.com>, 
 Christophe Leroy <christophe.leroy@...roup.eu>, 
 Geoff Levand <geoff@...radead.org>
Cc: linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 "Ricardo B. Marliere" <ricardo@...liere.net>
Subject: [PATCH 2/4] powerpc: ps3: make ps3_system_bus_type const

Now that the driver core can properly handle constant struct bus_type,
move the ps3_system_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>
---
 arch/powerpc/platforms/ps3/system-bus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index d6b5f5ecd515..b4298e98ffe8 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -466,7 +466,7 @@ static struct attribute *ps3_system_bus_dev_attrs[] = {
 };
 ATTRIBUTE_GROUPS(ps3_system_bus_dev);

-static struct bus_type ps3_system_bus_type = {
+static const struct bus_type ps3_system_bus_type = {
 	.name = "ps3_system_bus",
 	.match = ps3_system_bus_match,
 	.uevent = ps3_system_bus_uevent,

-- 
2.43.0