linux-kernel - [PATCH] fpga: dfl: make dfl_bus

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Message-Id: <20240204-bus_cleanup-fpga-v1-1-dae8b5bf7220@marliere.net>
Date: Sun, 04 Feb 2024 13:14:05 -0300
From: "Ricardo B. Marliere" <ricardo@...liere.net>
To: Wu Hao <hao.wu@...el.com>, Tom Rix <trix@...hat.com>, 
 Moritz Fischer <mdf@...nel.org>, Xu Yilun <yilun.xu@...el.com>
Cc: linux-fpga@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 "Ricardo B. Marliere" <ricardo@...liere.net>
Subject: [PATCH] fpga: dfl: make dfl_bus_type const

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

diff --git a/drivers/fpga/dfl.c b/drivers/fpga/dfl.c
index e6d12fbab653..094ee97ea26c 100644
--- a/drivers/fpga/dfl.c
+++ b/drivers/fpga/dfl.c
@@ -327,7 +327,7 @@ static struct attribute *dfl_dev_attrs[] = {
 };
 ATTRIBUTE_GROUPS(dfl_dev);

-static struct bus_type dfl_bus_type = {
+static const struct bus_type dfl_bus_type = {
 	.name		= "dfl",
 	.match		= dfl_bus_match,
 	.probe		= dfl_bus_probe,

---
base-commit: 8680970410625875c34d6b97b6fd89d7d62a74ec
change-id: 20240204-bus_cleanup-fpga-e8e3c3d562b7

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