linux-kernel - [PATCH] EISA: make eisa_bus

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <20240210-bus_cleanup-eisa-v1-1-279725834456@marliere.net>
Date: Sat, 10 Feb 2024 12:19:44 -0300
From: "Ricardo B. Marliere" <ricardo@...liere.net>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 "Ricardo B. Marliere" <ricardo@...liere.net>
Subject: [PATCH] EISA: make eisa_bus_type const

Now that the driver core can properly handle constant struct bus_type,
move the eisa_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/eisa/eisa-bus.c | 2 +-
 include/linux/eisa.h    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/eisa/eisa-bus.c b/drivers/eisa/eisa-bus.c
index 33f0ba11c6ad..a7723536412a 100644
--- a/drivers/eisa/eisa-bus.c
+++ b/drivers/eisa/eisa-bus.c
@@ -135,7 +135,7 @@ static int eisa_bus_uevent(const struct device *dev, struct kobj_uevent_env *env
 	return 0;
 }
 
-struct bus_type eisa_bus_type = {
+const struct bus_type eisa_bus_type = {
 	.name  = "eisa",
 	.match = eisa_bus_match,
 	.uevent = eisa_bus_uevent,
diff --git a/include/linux/eisa.h b/include/linux/eisa.h
index b012e30afebd..7277d450e092 100644
--- a/include/linux/eisa.h
+++ b/include/linux/eisa.h
@@ -65,7 +65,7 @@ struct eisa_driver {
 /* These external functions are only available when EISA support is enabled. */
 #ifdef CONFIG_EISA
 
-extern struct bus_type eisa_bus_type;
+extern const struct bus_type eisa_bus_type;
 int eisa_driver_register (struct eisa_driver *edrv);
 void eisa_driver_unregister (struct eisa_driver *edrv);
 

---
base-commit: 047371968ffc470769f541d6933e262dc7085456
change-id: 20240210-bus_cleanup-eisa-e650731e86c5

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