linux-kernel - [PATCH] vdpa: make vdpa

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Message-Id: <20240204-bus_cleanup-vdpa-v1-1-1745eccb0a5c@marliere.net>
Date: Sun, 04 Feb 2024 17:50:45 -0300
From: "Ricardo B. Marliere" <ricardo@...liere.net>
To: "Michael S. Tsirkin" <mst@...hat.com>, Jason Wang <jasowang@...hat.com>, 
 Xuan Zhuo <xuanzhuo@...ux.alibaba.com>
Cc: virtualization@...ts.linux.dev, linux-kernel@...r.kernel.org, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 "Ricardo B. Marliere" <ricardo@...liere.net>
Subject: [PATCH] vdpa: make vdpa_bus const

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

diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c
index d0695680b282..c73c06102e7e 100644
--- a/drivers/vdpa/vdpa.c
+++ b/drivers/vdpa/vdpa.c
@@ -115,7 +115,7 @@ static const struct attribute_group vdpa_dev_group = {
 };
 __ATTRIBUTE_GROUPS(vdpa_dev);

-static struct bus_type vdpa_bus = {
+static const struct bus_type vdpa_bus = {
 	.name  = "vdpa",
 	.dev_groups = vdpa_dev_groups,
 	.match = vdpa_dev_match,

---
base-commit: 41b9fb381a486360b2daaec0c7480f8e3ff72bc7
change-id: 20240204-bus_cleanup-vdpa-8e19b86329f6

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