linux-kernel - [PATCH] hv: vmbus: make hv

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Message-Id: <20240204-bus_cleanup-hv-v1-1-521bd4140673@marliere.net>
Date: Sun, 04 Feb 2024 13:38:02 -0300
From: "Ricardo B. Marliere" <ricardo@...liere.net>
To: "K. Y. Srinivasan" <kys@...rosoft.com>, 
 Haiyang Zhang <haiyangz@...rosoft.com>, Wei Liu <wei.liu@...nel.org>, 
 Dexuan Cui <decui@...rosoft.com>
Cc: linux-hyperv@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 "Ricardo B. Marliere" <ricardo@...liere.net>
Subject: [PATCH] hv: vmbus: make hv_bus const

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

diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index edbb38f6956b..c4e6d9f1b510 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -988,7 +988,7 @@ static const struct dev_pm_ops vmbus_pm = {
 };

 /* The one and only one */
-static struct bus_type  hv_bus = {
+static const struct bus_type  hv_bus = {
 	.name =		"vmbus",
 	.match =		vmbus_match,
 	.shutdown =		vmbus_shutdown,

---
base-commit: ce9ecca0238b140b88f43859b211c9fdfd8e5b70
change-id: 20240204-bus_cleanup-hv-2ca8a4603ebc

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