linux-kernel - [PATCH] s390: time: make stp

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Message-Id: <20240204-bus_cleanup-s390_time-v1-1-d2120156982a@marliere.net>
Date: Sun, 04 Feb 2024 11:25:45 -0300
From: "Ricardo B. Marliere" <ricardo@...liere.net>
To: Heiko Carstens <hca@...ux.ibm.com>, Vasily Gorbik <gor@...ux.ibm.com>, 
 Alexander Gordeev <agordeev@...ux.ibm.com>, 
 Christian Borntraeger <borntraeger@...ux.ibm.com>, 
 Sven Schnelle <svens@...ux.ibm.com>
Cc: linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 "Ricardo B. Marliere" <ricardo@...liere.net>
Subject: [PATCH] s390: time: make stp_subsys const

Now that the driver core can properly handle constant struct bus_type,
move the stp_subsys 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/s390/kernel/time.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 14abad953c02..39a42369389c 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -716,7 +716,7 @@ static void stp_work_fn(struct work_struct *work)
 /*
  * STP subsys sysfs interface functions
  */
-static struct bus_type stp_subsys = {
+static const struct bus_type stp_subsys = {
 	.name		= "stp",
 	.dev_name	= "stp",
 };

---
base-commit: 8eb3db95a8c8ecd6f8bb082a99ded3bbc79b023f
change-id: 20240204-bus_cleanup-s390_time-cf8851bbc1dc

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