linux-kernel - [PATCH 1/2] ntb: ntb_transport: make ntb_transport

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Message-Id: <20240204-bus_cleanup-ntb-v1-1-155184f60d5f@marliere.net>
Date: Sun, 04 Feb 2024 13:22:00 -0300
From: "Ricardo B. Marliere" <ricardo@...liere.net>
To: Jon Mason <jdmason@...zu.us>, Dave Jiang <dave.jiang@...el.com>, 
 Allen Hubbe <allenbh@...il.com>
Cc: ntb@...ts.linux.dev, linux-kernel@...r.kernel.org, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 "Ricardo B. Marliere" <ricardo@...liere.net>
Subject: [PATCH 1/2] ntb: ntb_transport: make ntb_transport_bus const

Now that the driver core can properly handle constant struct bus_type,
move the ntb_transport_bus 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/ntb/ntb_transport.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
index f9e7847a378e..0291d80611dc 100644
--- a/drivers/ntb/ntb_transport.c
+++ b/drivers/ntb/ntb_transport.c
@@ -314,7 +314,7 @@ static void ntb_transport_bus_remove(struct device *dev)
 	put_device(dev);
 }

-static struct bus_type ntb_transport_bus = {
+static const struct bus_type ntb_transport_bus = {
 	.name = "ntb_transport",
 	.match = ntb_transport_bus_match,
 	.probe = ntb_transport_bus_probe,

-- 
2.43.0